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| author | Ben Murdoch <benm@google.com> | 2011-05-13 16:40:46 +0100 |
|---|---|---|
| committer | Ben Murdoch <benm@google.com> | 2011-05-16 11:35:03 +0100 |
| commit | a2c606d1d8312a5d063e4a11e5911d9c8e4a3d19 (patch) | |
| tree | 614d69ba96a23bc057e539a3c8a7d4961a68254b /Source/WebKit/android/nav | |
| parent | 65f03d4f644ce73618e5f4f50dd694b26f55ae12 (diff) | |
| download | external_webkit-a2c606d1d8312a5d063e4a11e5911d9c8e4a3d19.zip external_webkit-a2c606d1d8312a5d063e4a11e5911d9c8e4a3d19.tar.gz external_webkit-a2c606d1d8312a5d063e4a11e5911d9c8e4a3d19.tar.bz2 | |
Merge WebKit at r75993: Move WebKit/android files to Source
Change-Id: Ifa871f8320bdb3a09fe189fffecc23f702c394b9
Diffstat (limited to 'Source/WebKit/android/nav')
26 files changed, 14858 insertions, 0 deletions
diff --git a/Source/WebKit/android/nav/CacheBuilder.cpp b/Source/WebKit/android/nav/CacheBuilder.cpp new file mode 100644 index 0000000..dc10f21 --- /dev/null +++ b/Source/WebKit/android/nav/CacheBuilder.cpp @@ -0,0 +1,3201 @@ +/* + * Copyright 2006, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "CachedNode.h" +#include "CachedRoot.h" +#include "ColumnInfo.h" +#include "Document.h" +#include "EventListener.h" +#include "EventNames.h" +#include "Frame.h" +#include "FrameLoader.h" +#include "FrameLoaderClientAndroid.h" +#include "FrameTree.h" +#include "FrameView.h" +//#include "GraphicsContext.h" +#include "HTMLAreaElement.h" +#include "HTMLImageElement.h" +#include "HTMLInputElement.h" +#include "HTMLMapElement.h" +#include "HTMLNames.h" +#include "HTMLOptionElement.h" +#include "HTMLSelectElement.h" +#include "HTMLTextAreaElement.h" +#include "InlineTextBox.h" +#include "KURL.h" +#include "LayerAndroid.h" +#include "PluginView.h" +#include "RegisteredEventListener.h" +#include "RenderImage.h" +#include "RenderInline.h" +#include "RenderLayerBacking.h" +#include "RenderListBox.h" +#include "RenderSkinCombo.h" +#include "RenderTextControl.h" +#include "RenderView.h" +#include "RenderWidget.h" +#include "SkCanvas.h" +#include "SkPoint.h" +#include "Text.h" +#include "WebCoreFrameBridge.h" +#include "WebCoreViewBridge.h" +#include "Widget.h" +#include <wtf/unicode/Unicode.h> + +#ifdef DUMP_NAV_CACHE_USING_PRINTF + FILE* gNavCacheLogFile = NULL; + android::Mutex gWriteLogMutex; +#endif + +#include "CacheBuilder.h" + +#define MINIMUM_FOCUSABLE_WIDTH 3 +#define MINIMUM_FOCUSABLE_HEIGHT 3 +#define MAXIMUM_FOCUS_RING_COUNT 32 + +namespace android { + +CacheBuilder* CacheBuilder::Builder(Frame* frame) { + return &((FrameLoaderClientAndroid*) frame->loader()->client())->getCacheBuilder(); +} + +Frame* CacheBuilder::FrameAnd(CacheBuilder* cacheBuilder) { + FrameLoaderClientAndroid* loader = (FrameLoaderClientAndroid*) + ((char*) cacheBuilder - OFFSETOF(FrameLoaderClientAndroid, m_cacheBuilder)); + return loader->getFrame(); +} + +Frame* CacheBuilder::FrameAnd(const CacheBuilder* cacheBuilder) { + FrameLoaderClientAndroid* loader = (FrameLoaderClientAndroid*) + ((char*) cacheBuilder - OFFSETOF(FrameLoaderClientAndroid, m_cacheBuilder)); + return loader->getFrame(); +} + +CacheBuilder::LayerTracker::~LayerTracker() { + // Check for a stacking context to prevent a crash in layers without a + // parent. + if (mRenderLayer && mRenderLayer->stackingContext()) + // Restore the scroll position of the layer. Does not affect layers + // without overflow scroll as the layer will not be scrolled. + mRenderLayer->scrollToOffset(mScroll.x(), mScroll.y(), false, false); +} + +#if DUMP_NAV_CACHE + +static bool hasEventListener(Node* node, const AtomicString& eventType) { + if (!node->isElementNode()) + return false; + Element* element = static_cast<Element*>(node); + EventListener* listener = element->getAttributeEventListener(eventType); + return 0 != listener; +} + +#define DEBUG_BUFFER_SIZE 256 +#define DEBUG_WRAP_SIZE 150 +#define DEBUG_WRAP_MAX 170 + +Frame* CacheBuilder::Debug::frameAnd() const { + CacheBuilder* nav = (CacheBuilder*) ((char*) this - OFFSETOF(CacheBuilder, mDebug)); + return CacheBuilder::FrameAnd(nav); +} + +void CacheBuilder::Debug::attr(const AtomicString& name, const AtomicString& value) { + if (name.isNull() || name.isEmpty() || value.isNull() || value.isEmpty()) + return; + uChar(name.characters(), name.length(), false); + print("="); + wideString(value.characters(), value.length(), false); + print(" "); +} + +void CacheBuilder::Debug::comma(const char* str) { + print(str); + print(", "); +} + +void CacheBuilder::Debug::flush() { + int len; + do { + int limit = mIndex; + if (limit < DEBUG_WRAP_SIZE) + return; + if (limit < DEBUG_WRAP_MAX) + len = limit; + else { + limit = DEBUG_WRAP_MAX; + len = DEBUG_WRAP_SIZE; + while (len < limit) { + char test = mBuffer[len]; + if (test < '/' || (test > '9' && test < 'A') || (test > 'Z' && test < 'a') || test > 'z') + break; + len++; + } + while (len > 0 && mBuffer[len - 1] == '\\') + len--; + while (mBuffer[len] == '"') + len++; + } + const char* prefix = mPrefix; + if (prefix[0] == '\"') { + // see if we're inside a quote + int quoteCount = 0; + for (int index = 0; index < len; index++) { + if (mBuffer[index] == '\\') { + index++; + continue; + } + if (mBuffer[index] == '\n') { + quoteCount = 0; + continue; + } + if (mBuffer[index] == '"') + quoteCount++; + } + if ((quoteCount & 1) == 0) + prefix = "\n"; + } + DUMP_NAV_LOGD("%.*s", len, mBuffer); + int copy = mIndex - len; + strcpy(mBuffer, prefix); + memcpy(&mBuffer[strlen(prefix)], &mBuffer[len], copy); + mIndex = strlen(prefix) + copy; + } while (true); +} + +void CacheBuilder::Debug::frameName(char*& namePtr, const char* max) const { + if (namePtr >= max) + return; + Frame* frame = frameAnd(); + Frame* parent = frame->tree()->parent(); + if (parent) + Builder(parent)->mDebug.frameName(namePtr, max); + const AtomicString& name = frame->tree()->name(); + if (name.length() == 0) + return; + unsigned index = 0; + if (name.startsWith(AtomicString("opener"))) + index = 6; + for (; index < name.length(); index++) { + char ch = name[index]; + if (ch <= ' ') + ch = '_'; + if (WTF::isASCIIAlphanumeric(ch) || ch == '_') + *namePtr++ = ch; + } +} + +void CacheBuilder::Debug::frames() { + Frame* frame = frameAnd(); + Document* doc = frame->document(); + if (doc == NULL) + return; + bool top = frame->tree()->parent() == NULL; + if (top) { +#ifdef DUMP_NAV_CACHE_USING_PRINTF + gWriteLogMutex.lock(); + ASSERT(gNavCacheLogFile == NULL); + gNavCacheLogFile = fopen(NAV_CACHE_LOG_FILE, "a"); +#endif + groups(); + } + Frame* child = frame->tree()->firstChild(); + bool hasChild = child != NULL; + if (top && hasChild) + DUMP_NAV_LOGD("\nnamespace TEST_SPACE {\n\n"); + while (child) { + Builder(child)->mDebug.frames(); + child = child->tree()->nextSibling(); + } + if (hasChild) { + child = frame->tree()->firstChild(); + while (child) { + char childName[256]; + char* childNamePtr = childName; + Builder(child)->mDebug.frameName(childNamePtr, childNamePtr + sizeof(childName) - 1); + *childNamePtr = '\0'; + if (child == frame->tree()->firstChild()) + DUMP_NAV_LOGD("DebugTestFrameGroup TEST%s_GROUP[] = {\n", childName); + Frame* next = child->tree()->nextSibling(); + Document* doc = child->document(); + if (doc != NULL) { + RenderObject* renderer = doc->renderer(); + if (renderer != NULL) { + RenderLayer* layer = renderer->enclosingLayer(); + if (layer != NULL) { + DUMP_NAV_LOGD("{ "); + DUMP_NAV_LOGD("TEST%s_RECTS, ", childName); + DUMP_NAV_LOGD("TEST%s_RECT_COUNT, ", childName); + DUMP_NAV_LOGD("TEST%s_RECTPARTS, ", childName); + DUMP_NAV_LOGD("TEST%s_BOUNDS,\n", childName); + DUMP_NAV_LOGD("TEST%s_WIDTH, ", childName); + DUMP_NAV_LOGD("TEST%s_HEIGHT,\n", childName); + DUMP_NAV_LOGD("0, 0, 0, 0,\n"); + DUMP_NAV_LOGD("TEST%s_FOCUS, ", childName); + Frame* grandChild = child->tree()->firstChild(); + if (grandChild) { + char grandChildName[256]; + char* grandChildNamePtr = grandChildName; + Builder(grandChild)->mDebug.frameName(grandChildNamePtr, + grandChildNamePtr + sizeof(grandChildName) - 1); + *grandChildNamePtr = '\0'; + DUMP_NAV_LOGD("TEST%s_GROUP, ", grandChildName); + DUMP_NAV_LOGD("sizeof(TEST%s_GROUP) / sizeof(DebugTestFrameGroup), ", grandChildName); + } else + DUMP_NAV_LOGD("NULL, 0, "); + DUMP_NAV_LOGD("\"%s\"\n", childName); + DUMP_NAV_LOGD("}%c\n", next ? ',' : ' '); + } + } + } + child = next; + } + DUMP_NAV_LOGD("};\n"); + } + if (top) { + if (hasChild) + DUMP_NAV_LOGD("\n} // end of namespace\n\n"); + char name[256]; + char* frameNamePtr = name; + frameName(frameNamePtr, frameNamePtr + sizeof(name) - 1); + *frameNamePtr = '\0'; + DUMP_NAV_LOGD("DebugTestFrameGroup TEST%s_GROUP = {\n", name); + DUMP_NAV_LOGD("TEST%s_RECTS, ", name); + DUMP_NAV_LOGD("TEST%s_RECT_COUNT, ", name); + DUMP_NAV_LOGD("TEST%s_RECTPARTS, ", name); + DUMP_NAV_LOGD("TEST%s_BOUNDS,\n", name); + DUMP_NAV_LOGD("TEST%s_WIDTH, ", name); + DUMP_NAV_LOGD("TEST%s_HEIGHT,\n", name); + DUMP_NAV_LOGD("TEST%s_MAX_H, ", name); + DUMP_NAV_LOGD("TEST%s_MIN_H, ", name); + DUMP_NAV_LOGD("TEST%s_MAX_V, ", name); + DUMP_NAV_LOGD("TEST%s_MIN_V,\n", name); + DUMP_NAV_LOGD("TEST%s_FOCUS, ", name); + if (hasChild) { + child = frame->tree()->firstChild(); + char childName[256]; + char* childNamePtr = childName; + Builder(child)->mDebug.frameName(childNamePtr, childNamePtr + sizeof(childName) - 1); + *childNamePtr = '\0'; + DUMP_NAV_LOGD("TEST_SPACE::TEST%s_GROUP, ", childName); + DUMP_NAV_LOGD("sizeof(TEST_SPACE::TEST%s_GROUP) / sizeof(DebugTestFrameGroup), \n" ,childName); + } else + DUMP_NAV_LOGD("NULL, 0, "); + DUMP_NAV_LOGD("\"%s\"\n", name); + DUMP_NAV_LOGD("};\n"); +#ifdef DUMP_NAV_CACHE_USING_PRINTF + if (gNavCacheLogFile) + fclose(gNavCacheLogFile); + gNavCacheLogFile = NULL; + gWriteLogMutex.unlock(); +#endif + } +} + +void CacheBuilder::Debug::init(char* buffer, size_t size) { + mBuffer = buffer; + mBufferSize = size; + mIndex = 0; + mPrefix = ""; +} + +void CacheBuilder::Debug::groups() { + Frame* frame = frameAnd(); + Frame* child = frame->tree()->firstChild(); + bool hasChild = child != NULL; + if (frame->tree()->parent() == NULL && hasChild) + DUMP_NAV_LOGD("namespace TEST_SPACE {\n\n"); + while (child) { + Builder(child)->mDebug.groups(); + child = child->tree()->nextSibling(); + } + if (frame->tree()->parent() == NULL && hasChild) + DUMP_NAV_LOGD("\n} // end of namespace\n\n"); + Document* doc = frame->document(); + char name[256]; + char* frameNamePtr = name; + frameName(frameNamePtr, frameNamePtr + sizeof(name) - 1); + *frameNamePtr = '\0'; + if (doc == NULL) { + DUMP_NAV_LOGD("// %s has no document\n", name); + return; + } + RenderObject* renderer = doc->renderer(); + if (renderer == NULL) { + DUMP_NAV_LOGD("// %s has no renderer\n", name); + return; + } + RenderLayer* layer = renderer->enclosingLayer(); + if (layer == NULL) { + DUMP_NAV_LOGD("// %s has no enclosingLayer\n", name); + return; + } + Node* node = doc; + Node* focus = doc->focusedNode(); + bool atLeastOne = false; + do { + if ((atLeastOne |= isFocusable(node)) != false) + break; + } while ((node = node->traverseNextNode()) != NULL); + int focusIndex = -1; + if (atLeastOne == false) { + DUMP_NAV_LOGD("static DebugTestNode TEST%s_RECTS[] = {\n" + "{{0, 0, 0, 0}, \"\", 0, -1, \"\", {0, 0, 0, 0}, false, 0}\n" + "};\n\n", name); + DUMP_NAV_LOGD("static int TEST%s_RECT_COUNT = 1;" + " // no focusable nodes\n", name); + DUMP_NAV_LOGD("#define TEST%s_RECTPARTS NULL\n", name); + } else { + node = doc; + int count = 1; + DUMP_NAV_LOGD("static DebugTestNode TEST%s_RECTS[] = {\n", name); + do { + String properties; + if (hasEventListener(node, eventNames().clickEvent)) + properties.append("ONCLICK | "); + if (hasEventListener(node, eventNames().mousedownEvent)) + properties.append("MOUSEDOWN | "); + if (hasEventListener(node, eventNames().mouseupEvent)) + properties.append("MOUSEUP | "); + if (hasEventListener(node, eventNames().mouseoverEvent)) + properties.append("MOUSEOVER | "); + if (hasEventListener(node, eventNames().mouseoutEvent)) + properties.append("MOUSEOUT | "); + if (hasEventListener(node, eventNames().keydownEvent)) + properties.append("KEYDOWN | "); + if (hasEventListener(node, eventNames().keyupEvent)) + properties.append("KEYUP | "); + if (CacheBuilder::HasFrame(node)) + properties.append("FRAME | "); + if (focus == node) { + properties.append("FOCUS | "); + focusIndex = count; + } + if (node->isKeyboardFocusable(NULL)) + properties.append("KEYBOARD_FOCUSABLE | "); + if (node->isMouseFocusable()) + properties.append("MOUSE_FOCUSABLE | "); + if (node->isFocusable()) + properties.append("SIMPLE_FOCUSABLE | "); + if (properties.isEmpty()) + properties.append("0"); + else + properties.truncate(properties.length() - 3); + IntRect rect = node->getRect(); + if (node->hasTagName(HTMLNames::areaTag)) + rect = getAreaRect(static_cast<HTMLAreaElement*>(node)); + char buffer[DEBUG_BUFFER_SIZE]; + memset(buffer, 0, sizeof(buffer)); + mBuffer = buffer; + mBufferSize = sizeof(buffer); + mPrefix = "\"\n\""; + mIndex = snprintf(buffer, sizeof(buffer), "{{%d, %d, %d, %d}, ", rect.x(), rect.y(), + rect.width(), rect.height()); + localName(node); + uChar(properties.characters(), properties.length(), false); + print(", "); + int parentIndex = ParentIndex(node, count, node->parentNode()); + char scratch[256]; + snprintf(scratch, sizeof(scratch), "%d", parentIndex); + comma(scratch); + Element* element = static_cast<Element*>(node); + if (node->isElementNode() && element->hasID()) + wideString(element->getIdAttribute()); + else if (node->isTextNode()) { + #if 01 // set to one to abbreviate text that can be omitted from the address detection code + if (rect.isEmpty() && node->textContent().length() > 100) { + wideString(node->textContent().characters(), 100, false); + snprintf(scratch, sizeof(scratch), "/* + %d bytes */", + node->textContent().length() - 100); + print(scratch); + } else + #endif + wideString(node->textContent().characters(), node->textContent().length(), true); + } else if (node->hasTagName(HTMLNames::aTag) || + node->hasTagName(HTMLNames::areaTag)) + { + HTMLAnchorElement* anchor = static_cast<HTMLAnchorElement*>(node); + wideString(anchor->href()); + } else if (node->hasTagName(HTMLNames::imgTag)) { + HTMLImageElement* image = static_cast<HTMLImageElement*>(node); + wideString(image->src()); + } else + print("\"\""); + RenderObject* renderer = node->renderer(); + int tabindex = node->isElementNode() ? node->tabIndex() : 0; + RenderLayer* layer = 0; + if (renderer) { + const IntRect& absB = renderer->absoluteBoundingBoxRect(); + bool hasLayer = renderer->hasLayer(); + layer = hasLayer ? toRenderBoxModelObject(renderer)->layer() : 0; + snprintf(scratch, sizeof(scratch), ", {%d, %d, %d, %d}, %s" + ", %d, %s, %s},", + absB.x(), absB.y(), absB.width(), absB.height(), + renderer->hasOverflowClip() ? "true" : "false", tabindex, + hasLayer ? "true" : "false", + hasLayer && layer->isComposited() ? "true" : "false"); + // TODO: add renderer->style()->visibility() + print(scratch); + } else + print(", {0, 0, 0, 0}, false, 0},"); + + flush(); + snprintf(scratch, sizeof(scratch), "// %d: ", count); + mPrefix = "\n// "; + print(scratch); + //print(renderer ? renderer->information().ascii() : "NO_RENDER_INFO"); + if (node->isElementNode()) { + Element* element = static_cast<Element*>(node); + NamedNodeMap* attrs = element->attributes(); + unsigned length = attrs->length(); + if (length > 0) { + newLine(); + print("// attr: "); + for (unsigned i = 0; i < length; i++) { + Attribute* a = attrs->attributeItem(i); + attr(a->localName(), a->value()); + } + } + } + if (renderer) { + RenderStyle* style = renderer->style(); + snprintf(scratch, sizeof(scratch), "// renderStyle:" + " visibility=%s hasBackGround=%d" + " tapHighlightColor().alpha()=0x%02x" + " isTransparent()=%s", + style->visibility() == HIDDEN ? "HIDDEN" : "VISIBLE", + renderer->hasBackground(), style->tapHighlightColor().alpha(), + renderer->isTransparent() ? "true" : "false"); + newLine(); + print(scratch); + RenderBlock* renderBlock = static_cast<RenderBlock*>(renderer); + if (renderer->isRenderBlock() && renderBlock->hasColumns()) { + const RenderBox* box = static_cast<RenderBox*>(renderer); + const IntRect& oRect = box->visibleOverflowRect(); + snprintf(scratch, sizeof(scratch), "// renderBlock:" + " columnCount=%d columnGap=%d direction=%d" + " hasOverflowClip=%d overflow=(%d,%d,w=%d,h=%d)", + renderBlock->columnInfo()->columnCount(), renderBlock->columnGap(), + renderBlock->style()->direction(), renderer->hasOverflowClip(), + oRect.x(), oRect.y(), oRect.width(), oRect.height()); + newLine(); + print(scratch); + } + } + #if USE(ACCELERATED_COMPOSITING) + if (renderer && renderer->hasLayer()) { + RenderLayer* layer = toRenderBoxModelObject(renderer)->layer(); + RenderLayerBacking* back = layer->backing(); + GraphicsLayer* grLayer = back ? back->graphicsLayer() : 0; + LayerAndroid* aLayer = grLayer ? grLayer->platformLayer() : 0; + const SkPicture* pict = aLayer ? aLayer->picture() : 0; + const IntRect& r = renderer->absoluteBoundingBoxRect(); + snprintf(scratch, sizeof(scratch), "// layer:%p back:%p" + " gLayer:%p aLayer:%p pict:%p r:(%d,%d,w=%d,h=%d)", + layer, back, grLayer, aLayer, pict, r.x(), r.y(), + r.width(), r.height()); + newLine(); + print(scratch); + } + #endif + count++; + newLine(); + } while ((node = node->traverseNextNode()) != NULL); + DUMP_NAV_LOGD("}; // focusables = %d\n", count - 1); + DUMP_NAV_LOGD("\n"); + DUMP_NAV_LOGD("static int TEST%s_RECT_COUNT = %d;\n\n", name, count - 1); + // look for rects with multiple parts + node = doc; + count = 1; + bool hasRectParts = false; + int globalOffsetX, globalOffsetY; + GetGlobalOffset(frame, &globalOffsetX, &globalOffsetY); + do { + IntRect rect; + bool _isFocusable = isFocusable(node) || (node->isTextNode() + && node->getRect().isEmpty() == false + ); + int nodeIndex = count++; + if (_isFocusable == false) + continue; + RenderObject* renderer = node->renderer(); + if (renderer == NULL) + continue; + WTF::Vector<IntRect> rects; + IntRect clipBounds = IntRect(0, 0, INT_MAX, INT_MAX); + IntRect focusBounds = IntRect(0, 0, INT_MAX, INT_MAX); + IntRect* rectPtr = &focusBounds; + int imageCount = 0; + if (node->isTextNode()) { + Text* textNode = (Text*) node; + if (CacheBuilder::ConstructTextRects(textNode, 0, textNode, + INT_MAX, globalOffsetX, globalOffsetY, rectPtr, + clipBounds, &rects) == false) + continue; + } else { + IntRect nodeBounds = node->getRect(); + if (CacheBuilder::ConstructPartRects(node, nodeBounds, rectPtr, + globalOffsetX, globalOffsetY, &rects, &imageCount) == false) + continue; + } + unsigned arraySize = rects.size(); + if (arraySize > 1 || (arraySize == 1 && (rectPtr->width() != rect.width())) || + rectPtr->height() != rect.height()) { + if (hasRectParts == false) { + DUMP_NAV_LOGD("static DebugTestRectPart TEST%s_RECTPARTS[] = {\n", name); + hasRectParts = true; + } + if (node->isTextNode() == false) { + unsigned rectIndex = 0; + for (; rectIndex < arraySize; rectIndex++) { + rectPtr = &rects.at(rectIndex); + DUMP_NAV_LOGD("{ %d, %d, %d, %d, %d }, // %d\n", nodeIndex, + rectPtr->x(), rectPtr->y(), rectPtr->width(), + rectPtr->height(), rectIndex + 1); + } + } else { + RenderText* renderText = (RenderText*) node->renderer(); + InlineTextBox* textBox = renderText->firstTextBox(); + unsigned rectIndex = 0; + while (textBox) { + FloatPoint pt = renderText->localToAbsolute(); + IntRect rect = textBox->selectionRect((int) pt.x(), (int) pt.y(), 0, INT_MAX); + mIndex = 0; + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, "{ %d, %d, %d, %d, %d", + nodeIndex, rect.x(), rect.y(), rect.width(), rect.height()); + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, ", %d, %d, %d", + textBox->len(), 0 /*textBox->selectionHeight()*/, + 0 /*textBox->selectionTop()*/); + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, ", %d, %d, %d", + 0 /*textBox->spaceAdd()*/, textBox->start(), 0 /*textBox->textPos()*/); + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, ", %d, %d, %d, %d", + textBox->x(), textBox->y(), textBox->logicalWidth(), textBox->logicalHeight()); + int baseline = textBox->renderer()->style(textBox->isFirstLineStyle())->font().ascent(); + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, ", %d, %d }, // %d ", + baseline, imageCount, ++rectIndex); + wideString(node->textContent().characters() + textBox->start(), textBox->len(), true); + DUMP_NAV_LOGD("%.*s\n", mIndex, mBuffer); + textBox = textBox->nextTextBox(); + } + } + } + } while ((node = node->traverseNextNode()) != NULL); + if (hasRectParts) + DUMP_NAV_LOGD("{0}\n};\n\n"); + else + DUMP_NAV_LOGD("static DebugTestRectPart* TEST%s_RECTPARTS = NULL;\n", name); + } + int contentsWidth = layer->width(); + int contentsHeight = layer->height(); + DUMP_NAV_LOGD("static int TEST%s_FOCUS = %d;\n", name, focusIndex); + DUMP_NAV_LOGD("static int TEST%s_WIDTH = %d;\n", name, contentsWidth); + DUMP_NAV_LOGD("static int TEST%s_HEIGHT = %d;\n\n", name, contentsHeight); +} + +bool CacheBuilder::Debug::isFocusable(Node* node) { + if (node->hasTagName(HTMLNames::areaTag)) + return true; + if (node->renderer() == false) + return false; + if (node->isKeyboardFocusable(NULL)) + return true; + if (node->isMouseFocusable()) + return true; + if (node->isFocusable()) + return true; + if (CacheBuilder::AnyIsClick(node)) + return false; + if (CacheBuilder::HasTriggerEvent(node)) + return true; + return false; +} + +void CacheBuilder::Debug::localName(Node* node) { + const AtomicString& local = node->localName(); + if (node->isTextNode()) + print("\"#text\""); + else + wideString(local.characters(), local.length(), false); + print(", "); +} + +void CacheBuilder::Debug::newLine(int indent) { + if (mPrefix[0] != '\n') + print(&mPrefix[0], 1); + flush(); + int lastnewline = mIndex - 1; + while (lastnewline >= 0 && mBuffer[lastnewline] != '\n') + lastnewline--; + lastnewline++; + char* buffer = mBuffer; + if (lastnewline > 0) { + DUMP_NAV_LOGD("%.*s", lastnewline, buffer); + mIndex -= lastnewline; + buffer += lastnewline; + } + size_t prefixLen = strlen(mPrefix); + int minPrefix = prefixLen - 1; + while (minPrefix >= 0 && mPrefix[minPrefix] != '\n') + minPrefix--; + minPrefix = prefixLen - minPrefix - 1; + if (mIndex > minPrefix) + DUMP_NAV_LOGD("%.*s\n", mIndex, buffer); + mIndex = 0; + setIndent(indent); +} + +int CacheBuilder::Debug::ParentIndex(Node* node, int count, Node* parent) +{ + if (parent == NULL) + return -1; + ASSERT(node != parent); + int result = count; + Node* previous = node; + do { + result--; + previous = previous->traversePreviousNode(); + } while (previous && previous != parent); + if (previous != NULL) + return result; + result = count; + do { + result++; + } while ((node = node->traverseNextNode()) != NULL && node != parent); + if (node != NULL) + return result; + ASSERT(0); + return -1; +} + +void CacheBuilder::Debug::print(const char* name) { + print(name, strlen(name)); +} + +void CacheBuilder::Debug::print(const char* name, unsigned len) { + do { + if (mIndex + len >= DEBUG_BUFFER_SIZE) + flush(); + int copyLen = mIndex + len < DEBUG_BUFFER_SIZE ? + len : DEBUG_BUFFER_SIZE - mIndex; + memcpy(&mBuffer[mIndex], name, copyLen); + mIndex += copyLen; + name += copyLen; + len -= copyLen; + } while (len > 0); + mBuffer[mIndex] = '\0'; +} + +void CacheBuilder::Debug::setIndent(int indent) +{ + char scratch[64]; + snprintf(scratch, sizeof(scratch), "%.*s", indent, + " "); + print(scratch); +} + +void CacheBuilder::Debug::uChar(const UChar* name, unsigned len, bool hex) { + const UChar* end = name + len; + bool wroteHex = false; + while (name < end) { + unsigned ch = *name++; + if (ch == '\t' || ch == '\n' || ch == '\r' || ch == 0xa0) + ch = ' '; + if (ch < ' ' || ch == 0x7f) { + if (hex) { + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, "\\x%02x", ch); + wroteHex = true; + } else + mBuffer[mIndex++] = '?'; + } else if (ch >= 0x80) { + if (hex) { + if (ch < 0x800) + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, + "\\x%02x\\x%02x", ch >> 6 | 0xc0, (ch & 0x3f) | 0x80); + else + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, + "\\x%02x\\x%02x\\x%02x", ch >> 12 | 0xe0, + (ch >> 6 & 0x3f) | 0x80, (ch & 0x3f) | 0x80); + wroteHex = true; + } else + mBuffer[mIndex++] = '?'; + } else { + if (wroteHex && WTF::isASCIIHexDigit((UChar) ch)) + mIndex += snprintf(&mBuffer[mIndex], mBufferSize - mIndex, + "\" \""); + else if (ch == '"' || ch == '\\') + mBuffer[mIndex++] = '\\'; + mBuffer[mIndex++] = ch; + wroteHex = false; + } + if (mIndex + 1 >= DEBUG_BUFFER_SIZE) + flush(); + } + flush(); +} + +void CacheBuilder::Debug::validateFrame() { + Frame* frame = frameAnd(); + Page* page = frame->page(); + ASSERT(page); + ASSERT((int) page > 0x10000); + Frame* child = frame->tree()->firstChild(); + while (child) { + Builder(child)->mDebug.validateFrame(); + child = child->tree()->nextSibling(); + } +} + +void CacheBuilder::Debug::wideString(const UChar* chars, int length, bool hex) { + if (length == 0) + print("\"\""); + else { + print("\""); + uChar(chars, length, hex); + print("\""); + } +} + +void CacheBuilder::Debug::wideString(const String& str) { + wideString(str.characters(), str.length(), false); +} + +#endif // DUMP_NAV_CACHE + +CacheBuilder::CacheBuilder() +{ + mAllowableTypes = ALL_CACHEDNODE_BITS; +#ifdef DUMP_NAV_CACHE_USING_PRINTF + gNavCacheLogFile = NULL; +#endif +} + +void CacheBuilder::adjustForColumns(const ClipColumnTracker& track, + CachedNode* node, IntRect* bounds, RenderBlock* renderer) +{ + if (!renderer->hasColumns()) + return; + int x = 0; + int y = 0; + int tx = track.mBounds.x(); + int ty = track.mBounds.y(); + int columnGap = track.mColumnGap; + size_t limit = track.mColumnInfo->columnCount(); + for (size_t index = 0; index < limit; index++) { + IntRect column = renderer->columnRectAt(track.mColumnInfo, index); + column.move(tx, ty); + IntRect test = *bounds; + test.move(x, y); + if (column.contains(test)) { + if ((x | y) == 0) + return; + *bounds = test; + node->move(x, y); + return; + } + int xOffset = column.width() + columnGap; + x += track.mDirection == LTR ? xOffset : -xOffset; + y -= column.height(); + } +} + +// Checks if a node has one of event listener types. +bool CacheBuilder::NodeHasEventListeners(Node* node, AtomicString* eventTypes, int length) { + for (int i = 0; i < length; ++i) { + if (!node->getEventListeners(eventTypes[i]).isEmpty()) + return true; + } + return false; +} + +bool CacheBuilder::AnyChildIsClick(Node* node) +{ + AtomicString eventTypes[5] = { + eventNames().clickEvent, + eventNames().mousedownEvent, + eventNames().mouseupEvent, + eventNames().keydownEvent, + eventNames().keyupEvent + }; + + Node* child = node->firstChild(); + while (child != NULL) { + if (child->isFocusable() || + NodeHasEventListeners(child, eventTypes, 5)) + return true; + if (AnyChildIsClick(child)) + return true; + child = child->nextSibling(); + } + return false; +} + +bool CacheBuilder::AnyIsClick(Node* node) +{ + if (node->hasTagName(HTMLNames::bodyTag)) + return AnyChildIsClick(node); + + AtomicString eventTypeSetOne[4] = { + eventNames().mouseoverEvent, + eventNames().mouseoutEvent, + eventNames().keydownEvent, + eventNames().keyupEvent + }; + + if (!NodeHasEventListeners(node, eventTypeSetOne, 4)) + return false; + + AtomicString eventTypeSetTwo[3] = { + eventNames().clickEvent, + eventNames().mousedownEvent, + eventNames().mouseupEvent + }; + + if (NodeHasEventListeners(node, eventTypeSetTwo, 3)) + return false; + + return AnyChildIsClick(node); +} + +void CacheBuilder::buildCache(CachedRoot* root) +{ + Frame* frame = FrameAnd(this); + mPictureSetDisabled = false; + BuildFrame(frame, frame, root, (CachedFrame*) root); + root->finishInit(); // set up frame parent pointers, child pointers + setData((CachedFrame*) root); +} + +static Node* ParentWithChildren(Node* node) +{ + Node* parent = node; + while ((parent = parent->parentNode())) { + if (parent->childNodeCount() > 1) + return parent; + } + return 0; +} + +// FIXME +// Probably this should check for null instead of the caller. If the +// Tracker object is the last thing in the dom, checking for null in the +// caller in some cases fails to set up Tracker state which may be useful +// to the nodes parsed immediately after the tracked noe. +static Node* OneAfter(Node* node) +{ + Node* parent = node; + Node* sibling = NULL; + while ((parent = parent->parentNode()) != NULL) { + sibling = parent->nextSibling(); + if (sibling != NULL) + break; + } + return sibling; +} + +// return true if this renderer is really a pluinview, and it wants +// key-events (i.e. focus) +static bool checkForPluginViewThatWantsFocus(RenderObject* renderer) { + if (renderer->isWidget()) { + Widget* widget = static_cast<RenderWidget*>(renderer)->widget(); + if (widget && (widget->isPluginView() || widget->isPluginViewBase())) { + // check if this plugin really wants key events (TODO) + return true; + } + } + return false; +} + +#if USE(ACCELERATED_COMPOSITING) +static void AddLayer(CachedFrame* frame, size_t index, const IntPoint& location, int id) +{ + DBG_NAV_LOGD("frame=%p index=%d loc=(%d,%d) id=%d", frame, index, + location.x(), location.y(), id); + CachedLayer cachedLayer; + cachedLayer.setCachedNodeIndex(index); + cachedLayer.setOffset(location); + cachedLayer.setUniqueId(id); + frame->add(cachedLayer); +} +#endif + +static int FindColorIndex(WTF::Vector<CachedColor>& colorTracker, + const CachedColor& cachedColor) +{ + CachedColor* work = colorTracker.begin() - 1; + CachedColor* end = colorTracker.end(); + while (++work < end) { + if (*work == cachedColor) + return work - colorTracker.begin(); + } + int result = colorTracker.size(); + colorTracker.grow(result + 1); + CachedColor& newColor = colorTracker.last(); + newColor = cachedColor; + return result; +} + +static void InitColor(CachedColor* color) +{ + color->setFillColor(RenderStyle::initialRingFillColor()); + color->setInnerWidth(RenderStyle::initialRingInnerWidth()); + color->setOuterWidth(RenderStyle::initialRingOuterWidth()); + color->setOutset(RenderStyle::initialRingOutset()); + color->setPressedInnerColor(RenderStyle::initialRingPressedInnerColor()); + color->setPressedOuterColor(RenderStyle::initialRingPressedOuterColor()); + color->setRadius(RenderStyle::initialRingRadius()); + color->setSelectedInnerColor(RenderStyle::initialRingSelectedInnerColor()); + color->setSelectedOuterColor(RenderStyle::initialRingSelectedOuterColor()); +} + +// when new focus is found, push it's parent on a stack + // as long as more focii are found with the same (grand) parent, note it + // (which only requires retrieving the last parent on the stack) +// when the parent's last child is found, pop the stack +// different from Tracker in that Tracker only pushes focii with children + +// making this work with focus - child focus - grandchild focus is tricky +// if I keep the generation number, I may be able to more quickly determine that +// a node is a grandchild of the focus's parent +// this additionally requires being able to find the grandchild's parent + +// keep nodes that are focusable +void CacheBuilder::BuildFrame(Frame* root, Frame* frame, + CachedRoot* cachedRoot, CachedFrame* cachedFrame) +{ + WTF::Vector<FocusTracker> tracker(1); // sentinel + { + FocusTracker* baseTracker = tracker.data(); + bzero(baseTracker, sizeof(FocusTracker)); + baseTracker->mCachedNodeIndex = -1; + } + WTF::Vector<LayerTracker> layerTracker(1); // sentinel + bzero(layerTracker.data(), sizeof(LayerTracker)); + WTF::Vector<ClipColumnTracker> clipTracker(1); // sentinel + bzero(clipTracker.data(), sizeof(ClipColumnTracker)); + WTF::Vector<TabIndexTracker> tabIndexTracker(1); // sentinel + bzero(tabIndexTracker.data(), sizeof(TabIndexTracker)); + WTF::Vector<CachedColor> colorTracker(1); + InitColor(colorTracker.data()); +#if DUMP_NAV_CACHE + char* frameNamePtr = cachedFrame->mDebug.mFrameName; + Builder(frame)->mDebug.frameName(frameNamePtr, frameNamePtr + + sizeof(cachedFrame->mDebug.mFrameName) - 1); + *frameNamePtr = '\0'; + int nodeIndex = 1; +#endif + NodeWalk walk; + Document* doc = frame->document(); + Node* parent = doc; + CachedNode cachedParentNode; + cachedParentNode.init(parent); +#if DUMP_NAV_CACHE + cachedParentNode.mDebug.mNodeIndex = nodeIndex; +#endif + cachedFrame->add(colorTracker[0]); + cachedFrame->add(cachedParentNode); + Node* node = parent; + int cacheIndex = 1; + int colorIndex = 0; // assume no special css ring colors + const void* lastStyleDataPtr = 0; + int textInputIndex = 0; + Node* focused = doc->focusedNode(); + if (focused) + cachedRoot->setFocusBounds(focused->getRect()); + int globalOffsetX, globalOffsetY; + GetGlobalOffset(frame, &globalOffsetX, &globalOffsetY); +#if USE(ACCELERATED_COMPOSITING) + // The frame itself might be composited so we need to track the layer. Do + // not track the base frame's layer as the main content is draw as part of + // BaseLayerAndroid's picture. + if (frame != root && frame->contentRenderer() + && frame->contentRenderer()->usesCompositing() && node->lastChild()) + TrackLayer(layerTracker, frame->contentRenderer(), node->lastChild(), + globalOffsetX, globalOffsetY); +#endif + while (walk.mMore || (node = node->traverseNextNode()) != NULL) { +#if DUMP_NAV_CACHE + nodeIndex++; +#endif + FocusTracker* last = &tracker.last(); + int lastChildIndex = cachedFrame->size() - 1; + while (node == last->mLastChild) { + if (CleanUpContainedNodes(cachedRoot, cachedFrame, last, lastChildIndex)) + cacheIndex--; + tracker.removeLast(); + lastChildIndex = last->mCachedNodeIndex; + last = &tracker.last(); + } + do { + const ClipColumnTracker* lastClip = &clipTracker.last(); + if (node != lastClip->mLastChild) + break; + clipTracker.removeLast(); + } while (true); + do { + const LayerTracker* lastLayer = &layerTracker.last(); + if (node != lastLayer->mLastChild) + break; + layerTracker.removeLast(); + } while (true); + do { + const TabIndexTracker* lastTabIndex = &tabIndexTracker.last(); + if (node != lastTabIndex->mLastChild) + break; + tabIndexTracker.removeLast(); + } while (true); + Frame* child = HasFrame(node); + CachedNode cachedNode; + if (child != NULL) { + if (child->document() == NULL) + continue; + RenderObject* nodeRenderer = node->renderer(); + if (nodeRenderer != NULL && nodeRenderer->style()->visibility() == HIDDEN) + continue; + CachedFrame cachedChild; + cachedChild.init(cachedRoot, cacheIndex, child); + int childFrameIndex = cachedFrame->childCount(); + cachedFrame->addFrame(cachedChild); + cachedNode.init(node); + cachedNode.setIndex(cacheIndex++); + cachedNode.setDataIndex(childFrameIndex); + cachedNode.setType(FRAME_CACHEDNODETYPE); +#if DUMP_NAV_CACHE + cachedNode.mDebug.mNodeIndex = nodeIndex; + cachedNode.mDebug.mParentGroupIndex = Debug::ParentIndex( + node, nodeIndex, NULL); +#endif + cachedFrame->add(cachedNode); + CachedFrame* childPtr = cachedFrame->lastChild(); + BuildFrame(root, child, cachedRoot, childPtr); + continue; + } + int tabIndex = node->tabIndex(); + Node* lastChild = node->lastChild(); + if (tabIndex <= 0) + tabIndex = tabIndexTracker.last().mTabIndex; + else if (tabIndex > 0 && lastChild) { + DBG_NAV_LOGD("tabIndex=%d node=%p", tabIndex, node); + tabIndexTracker.grow(tabIndexTracker.size() + 1); + TabIndexTracker& indexTracker = tabIndexTracker.last(); + indexTracker.mTabIndex = tabIndex; + indexTracker.mLastChild = OneAfter(lastChild); + } + RenderObject* nodeRenderer = node->renderer(); + bool isTransparent = false; + bool hasCursorRing = true; + if (nodeRenderer != NULL) { + RenderStyle* style = nodeRenderer->style(); + if (style->visibility() == HIDDEN) + continue; + isTransparent = nodeRenderer->hasBackground() == false; +#ifdef ANDROID_CSS_TAP_HIGHLIGHT_COLOR + hasCursorRing = style->tapHighlightColor().alpha() > 0; +#endif +#if USE(ACCELERATED_COMPOSITING) + // If this renderer has its own layer and the layer is composited, + // start tracking it. + if (lastChild && nodeRenderer->hasLayer() && toRenderBoxModelObject(nodeRenderer)->layer()->backing()) + TrackLayer(layerTracker, nodeRenderer, lastChild, globalOffsetX, globalOffsetY); +#endif + } + bool more = walk.mMore; + walk.reset(); + // GetGlobalBounds(node, &bounds, false); + bool computeCursorRings = false; + bool hasClip = false; + bool hasMouseOver = false; + bool isUnclipped = false; + bool isFocus = node == focused; + bool takesFocus = false; + int columnGap = 0; + int imageCount = 0; + TextDirection direction = LTR; + String exported; + CachedNodeType type = NORMAL_CACHEDNODETYPE; + CachedColor cachedColor; + CachedInput cachedInput; + IntRect bounds; + IntRect absBounds; + IntRect originalAbsBounds; + ColumnInfo* columnInfo = NULL; + if (node->hasTagName(HTMLNames::areaTag)) { + type = AREA_CACHEDNODETYPE; + HTMLAreaElement* area = static_cast<HTMLAreaElement*>(node); + bounds = getAreaRect(area); + originalAbsBounds = bounds; + bounds.move(globalOffsetX, globalOffsetY); + absBounds = bounds; + isUnclipped = true; // FIXME: areamaps require more effort to detect + // assume areamaps are always visible for now + takesFocus = true; + goto keepNode; + } + if (nodeRenderer == NULL) + continue; + + // some common setup + absBounds = nodeRenderer->absoluteBoundingBoxRect(); + originalAbsBounds = absBounds; + absBounds.move(globalOffsetX, globalOffsetY); + hasClip = nodeRenderer->hasOverflowClip(); + + if (node->hasTagName(HTMLNames::canvasTag)) + mPictureSetDisabled = true; + if (checkForPluginViewThatWantsFocus(nodeRenderer)) { + bounds = absBounds; + isUnclipped = true; + takesFocus = true; + type = PLUGIN_CACHEDNODETYPE; + goto keepNode; + } + // Only use the root contentEditable element + if (node->isContentEditable() && !node->parentOrHostNode()->isContentEditable()) { + bounds = absBounds; + takesFocus = true; + type = CONTENT_EDITABLE_CACHEDNODETYPE; + goto keepNode; + } + if (nodeRenderer->isRenderBlock()) { + RenderBlock* renderBlock = (RenderBlock*) nodeRenderer; + if (renderBlock->hasColumns()) { + columnInfo = renderBlock->columnInfo(); + columnGap = renderBlock->columnGap(); + direction = renderBlock->style()->direction(); + } + } + if ((hasClip != false || columnInfo != NULL) && lastChild) { + clipTracker.grow(clipTracker.size() + 1); + ClipColumnTracker& clip = clipTracker.last(); + clip.mBounds = absBounds; + clip.mLastChild = OneAfter(lastChild); + clip.mNode = node; + clip.mColumnInfo = columnInfo; + clip.mColumnGap = columnGap; + clip.mHasClip = hasClip; + clip.mDirection = direction; + if (columnInfo != NULL) { + const IntRect& oRect = ((RenderBox*)nodeRenderer)->visualOverflowRect(); + clip.mBounds.move(oRect.x(), oRect.y()); + } + } + if (node->isTextNode() && mAllowableTypes != NORMAL_CACHEDNODE_BITS) { + if (last->mSomeParentTakesFocus) // don't look at text inside focusable node + continue; + CachedNodeType checkType; + if (isFocusableText(&walk, more, node, &checkType, + &exported) == false) + continue; + #if DUMP_NAV_CACHE + { + char buffer[DEBUG_BUFFER_SIZE]; + mDebug.init(buffer, sizeof(buffer)); + mDebug.print("text link found: "); + mDebug.wideString(exported); + DUMP_NAV_LOGD("%s\n", buffer); + } + #endif + type = checkType; + // !!! test ! is the following line correctly needed for frames to work? + cachedNode.init(node); + const ClipColumnTracker& clipTrack = clipTracker.last(); + const IntRect& clip = clipTrack.mHasClip ? clipTrack.mBounds : + IntRect(0, 0, INT_MAX, INT_MAX); + if (ConstructTextRects((WebCore::Text*) node, walk.mStart, + (WebCore::Text*) walk.mFinalNode, walk.mEnd, globalOffsetX, + globalOffsetY, &bounds, clip, &cachedNode.mCursorRing) == false) + continue; + absBounds = bounds; + cachedNode.setBounds(bounds); + if (bounds.width() < MINIMUM_FOCUSABLE_WIDTH) + continue; + if (bounds.height() < MINIMUM_FOCUSABLE_HEIGHT) + continue; + computeCursorRings = true; + isUnclipped = true; // FIXME: to hide or partially occlude synthesized links, each + // focus ring will also need the offset and length of characters + // used to produce it + goto keepTextNode; + } + if (node->hasTagName(WebCore::HTMLNames::inputTag)) { + HTMLInputElement* input = static_cast<HTMLInputElement*>(node); + if (input->isTextField()) { + if (input->readOnly()) + continue; + type = TEXT_INPUT_CACHEDNODETYPE; + cachedInput.init(); + cachedInput.setAutoComplete(input->autoComplete()); + cachedInput.setFormPointer(input->form()); + cachedInput.setIsTextField(true); + exported = input->value().threadsafeCopy(); + cachedInput.setMaxLength(input->maxLength()); + cachedInput.setTypeFromElement(input); + // If this does not need to be threadsafe, we can use crossThreadString(). + // See http://trac.webkit.org/changeset/49160. + cachedInput.setName(input->name().string().threadsafeCopy()); + // can't detect if this is drawn on top (example: deviant.com login parts) + isUnclipped = isTransparent; + } else if (input->isInputTypeHidden()) + continue; + else if (input->isRadioButton() || input->isCheckbox()) + isTransparent = false; + } else if (node->hasTagName(HTMLNames::textareaTag)) { + HTMLTextAreaElement* area = static_cast<HTMLTextAreaElement*>(node); + if (area->readOnly()) + continue; + cachedInput.init(); + type = TEXT_INPUT_CACHEDNODETYPE; + cachedInput.setFormPointer(area->form()); + cachedInput.setIsTextArea(true); + exported = area->value().threadsafeCopy(); + } else if (node->hasTagName(HTMLNames::aTag)) { + const HTMLAnchorElement* anchorNode = + (const HTMLAnchorElement*) node; + if (!anchorNode->isFocusable() && !HasTriggerEvent(node)) + continue; + if (node->disabled()) + continue; + hasMouseOver = NodeHasEventListeners(node, &eventNames().mouseoverEvent, 1); + type = ANCHOR_CACHEDNODETYPE; + KURL href = anchorNode->href(); + if (!href.isEmpty() && !WebCore::protocolIsJavaScript(href.string())) + // Set the exported string for all non-javascript anchors. + exported = href.string().threadsafeCopy(); + } else if (node->hasTagName(HTMLNames::selectTag)) { + type = SELECT_CACHEDNODETYPE; + } + if (type == TEXT_INPUT_CACHEDNODETYPE) { + RenderTextControl* renderText = + static_cast<RenderTextControl*>(nodeRenderer); + if (isFocus) + cachedRoot->setSelection(renderText->selectionStart(), renderText->selectionEnd()); + // FIXME: Are we sure there will always be a style and font, and it's correct? + RenderStyle* style = nodeRenderer->style(); + if (style) { + isUnclipped |= !style->hasAppearance(); + int lineHeight = -1; + Length lineHeightLength = style->lineHeight(); + // If the lineHeight is negative, WebTextView will calculate it + // based on the text size, using the Paint. + // See RenderStyle.computedLineHeight. + if (lineHeightLength.isPositive()) + lineHeight = style->computedLineHeight(); + cachedInput.setLineHeight(lineHeight); + cachedInput.setTextSize(style->font().size()); + cachedInput.setIsRtlText(style->direction() == RTL + || style->textAlign() == WebCore::RIGHT + || style->textAlign() == WebCore::WEBKIT_RIGHT); + } + cachedInput.setPaddingLeft(renderText->paddingLeft() + renderText->borderLeft()); + cachedInput.setPaddingTop(renderText->paddingTop() + renderText->borderTop()); + cachedInput.setPaddingRight(renderText->paddingRight() + renderText->borderRight()); + cachedInput.setPaddingBottom(renderText->paddingBottom() + renderText->borderBottom()); + } + takesFocus = true; + bounds = absBounds; + if (type != ANCHOR_CACHEDNODETYPE) { + bool isFocusable = node->isKeyboardFocusable(NULL) || + node->isMouseFocusable() || node->isFocusable(); + if (isFocusable == false) { + if (node->disabled()) + continue; + bool overOrOut = HasOverOrOut(node); + bool hasTrigger = HasTriggerEvent(node); + if (overOrOut == false && hasTrigger == false) + continue; + takesFocus = hasTrigger; + } + } + computeCursorRings = true; + keepNode: + cachedNode.init(node); + if (computeCursorRings == false) { + cachedNode.setBounds(bounds); + cachedNode.mCursorRing.append(bounds); + } else if (ConstructPartRects(node, bounds, &cachedNode.mBounds, + globalOffsetX, globalOffsetY, &cachedNode.mCursorRing, + &imageCount) == false) + continue; + keepTextNode: + if (nodeRenderer) { // area tags' node->renderer() == 0 + RenderStyle* style = nodeRenderer->style(); + const void* styleDataPtr = style->ringData(); + // to save time, see if we're pointing to the same style data as before + if (lastStyleDataPtr != styleDataPtr) { + lastStyleDataPtr = styleDataPtr; + cachedColor.setFillColor(style->ringFillColor()); + cachedColor.setInnerWidth(style->ringInnerWidth()); + cachedColor.setOuterWidth(style->ringOuterWidth()); + cachedColor.setOutset(style->ringOutset()); + cachedColor.setPressedInnerColor(style->ringPressedInnerColor()); + cachedColor.setPressedOuterColor(style->ringPressedOuterColor()); + cachedColor.setRadius(style->ringRadius()); + cachedColor.setSelectedInnerColor(style->ringSelectedInnerColor()); + cachedColor.setSelectedOuterColor(style->ringSelectedOuterColor()); + int oldSize = colorTracker.size(); + colorIndex = FindColorIndex(colorTracker, cachedColor); + if (colorIndex == oldSize) + cachedFrame->add(cachedColor); + } + } else + colorIndex = 0; + IntRect clip = hasClip ? bounds : absBounds; + size_t clipIndex = clipTracker.size(); + if (clipTracker.last().mNode == node) + clipIndex -= 1; + while (--clipIndex > 0) { + const ClipColumnTracker& clipTrack = clipTracker.at(clipIndex); + if (clipTrack.mHasClip == false) { + adjustForColumns(clipTrack, &cachedNode, &absBounds, static_cast<RenderBlock*>(nodeRenderer)); + continue; + } + const IntRect& parentClip = clipTrack.mBounds; + if (hasClip == false && type == ANCHOR_CACHEDNODETYPE) + clip = parentClip; + else + clip.intersect(parentClip); + hasClip = true; + } + bool isInLayer = false; +#if USE(ACCELERATED_COMPOSITING) + // If this renderer has a composited parent layer (including itself), + // add the node to the cached layer. + // FIXME: does not work for area rects + RenderLayer* enclosingLayer = nodeRenderer->enclosingLayer(); + if (enclosingLayer && enclosingLayer->enclosingCompositingLayer()) { + LayerAndroid* layer = layerTracker.last().mLayer; + if (layer) { + const IntRect& layerClip = layerTracker.last().mBounds; + if (!layerClip.isEmpty() && !cachedNode.clip(layerClip)) { + DBG_NAV_LOGD("skipped on layer clip %d", cacheIndex); + continue; // skip this node if outside of the clip + } + isInLayer = true; + isUnclipped = true; // assume that layers do not have occluded nodes + hasClip = false; + AddLayer(cachedFrame, cachedFrame->size(), layerClip.location(), + layer->uniqueId()); + } + } +#endif + if (hasClip) { + if (clip.isEmpty()) + continue; // skip this node if clip prevents all drawing + else if (cachedNode.clip(clip) == false) + continue; // skip this node if outside of the clip + } + cachedNode.setNavableRects(); + cachedNode.setColorIndex(colorIndex); + cachedNode.setExport(exported); + cachedNode.setHasCursorRing(hasCursorRing); + cachedNode.setHasMouseOver(hasMouseOver); + cachedNode.setHitBounds(absBounds); + cachedNode.setIndex(cacheIndex); + cachedNode.setIsFocus(isFocus); + cachedNode.setIsInLayer(isInLayer); + cachedNode.setIsTransparent(isTransparent); + cachedNode.setIsUnclipped(isUnclipped); + cachedNode.setOriginalAbsoluteBounds(originalAbsBounds); + cachedNode.setParentIndex(last->mCachedNodeIndex); + cachedNode.setParentGroup(ParentWithChildren(node)); + cachedNode.setSingleImage(imageCount == 1); + cachedNode.setTabIndex(tabIndex); + cachedNode.setType(type); + if (type == TEXT_INPUT_CACHEDNODETYPE) { + cachedFrame->add(cachedInput); + cachedNode.setDataIndex(textInputIndex); + textInputIndex++; + } else + cachedNode.setDataIndex(-1); +#if DUMP_NAV_CACHE + cachedNode.mDebug.mNodeIndex = nodeIndex; + cachedNode.mDebug.mParentGroupIndex = Debug::ParentIndex( + node, nodeIndex, (Node*) cachedNode.parentGroup()); +#endif + cachedFrame->add(cachedNode); + { + int lastIndex = cachedFrame->size() - 1; + if (node == focused) { + CachedNode* cachedNodePtr = cachedFrame->getIndex(lastIndex); + cachedRoot->setCachedFocus(cachedFrame, cachedNodePtr); + } + if (lastChild != NULL) { + tracker.grow(tracker.size() + 1); + FocusTracker& working = tracker.last(); + working.mCachedNodeIndex = lastIndex; + working.mLastChild = OneAfter(lastChild); + last = &tracker.at(tracker.size() - 2); + working.mSomeParentTakesFocus = last->mSomeParentTakesFocus | takesFocus; + } + } + cacheIndex++; + } + while (tracker.size() > 1) { + FocusTracker* last = &tracker.last(); + int lastChildIndex = cachedFrame->size() - 1; + if (CleanUpContainedNodes(cachedRoot, cachedFrame, last, lastChildIndex)) + cacheIndex--; + tracker.removeLast(); + } +} + +bool CacheBuilder::CleanUpContainedNodes(CachedRoot* cachedRoot, + CachedFrame* cachedFrame, const FocusTracker* last, int lastChildIndex) +{ + // if outer is body, disable outer + // or if there's more than one inner, disable outer + // or if inner is keyboard focusable, disable outer + // else disable inner by removing it + int childCount = lastChildIndex - last->mCachedNodeIndex; + if (childCount == 0) + return false; + CachedNode* lastCached = cachedFrame->getIndex(last->mCachedNodeIndex); + Node* lastNode = (Node*) lastCached->nodePointer(); + if ((childCount > 1 && lastNode->hasTagName(HTMLNames::selectTag) == false) || + lastNode->hasTagName(HTMLNames::bodyTag) || + lastNode->hasTagName(HTMLNames::formTag)) { + lastCached->setBounds(IntRect(0, 0, 0, 0)); + lastCached->mCursorRing.clear(); + lastCached->setNavableRects(); + return false; + } + CachedNode* onlyChildCached = cachedFrame->lastNode(); + Node* onlyChild = (Node*) onlyChildCached->nodePointer(); + bool outerIsMouseMoveOnly = + lastNode->isKeyboardFocusable(NULL) == false && + lastNode->isMouseFocusable() == false && + lastNode->isFocusable() == false && + HasOverOrOut(lastNode) == true && + HasTriggerEvent(lastNode) == false; + if (onlyChildCached->parent() == lastCached) + onlyChildCached->setParentIndex(lastCached->parentIndex()); + bool hasFocus = lastCached->isFocus() || onlyChildCached->isFocus(); + if (outerIsMouseMoveOnly || onlyChild->isKeyboardFocusable(NULL) + || onlyChildCached->isPlugin()) { + int index = lastCached->index(); + *lastCached = *onlyChildCached; + lastCached->setIndex(index); + CachedFrame* frame = cachedFrame->hasFrame(lastCached); + if (frame) + frame->setIndexInParent(index); + } + cachedFrame->removeLast(); + if (hasFocus) + cachedRoot->setCachedFocus(cachedFrame, cachedFrame->lastNode()); + return true; +} + +Node* CacheBuilder::currentFocus() const +{ + Frame* frame = FrameAnd(this); + Document* doc = frame->document(); + if (doc != NULL) { + Node* focus = doc->focusedNode(); + if (focus != NULL) + return focus; + } + Frame* child = frame->tree()->firstChild(); + while (child) { + CacheBuilder* cacheBuilder = Builder(child); + Node* focus = cacheBuilder->currentFocus(); + if (focus) + return focus; + child = child->tree()->nextSibling(); + } + return NULL; +} + +static bool strCharCmp(const char* matches, const UChar* test, int wordLength, + int wordCount) +{ + for (int index = 0; index < wordCount; index++) { + for (int inner = 0; inner < wordLength; inner++) { + if (matches[inner] != test[inner]) { + matches += wordLength; + goto next; + } + } + return true; +next: + ; + } + return false; +} + +static const int stateTwoLetter[] = { + 0x02060c00, // A followed by: [KLRSZ] + 0x00000000, // B + 0x00084001, // C followed by: [AOT] + 0x00000014, // D followed by: [CE] + 0x00000000, // E + 0x00001800, // F followed by: [LM] + 0x00100001, // G followed by: [AU] + 0x00000100, // H followed by: [I] + 0x00002809, // I followed by: [ADLN] + 0x00000000, // J + 0x01040000, // K followed by: [SY] + 0x00000001, // L followed by: [A] + 0x000ce199, // M followed by: [ADEHINOPST] + 0x0120129c, // N followed by: [CDEHJMVY] + 0x00020480, // O followed by: [HKR] + 0x00420001, // P followed by: [ARW] + 0x00000000, // Q + 0x00000100, // R followed by: [I] + 0x0000000c, // S followed by: [CD] + 0x00802000, // T followed by: [NX] + 0x00080000, // U followed by: [T] + 0x00080101, // V followed by: [AIT] + 0x01200101 // W followed by: [AIVY] +}; + +static const char firstIndex[] = { + 0, 5, 5, 8, 10, 10, 12, 14, + 15, 19, 19, 21, 22, 32, 40, 43, + 46, 46, 47, 49, 51, 52, 55, 59 +}; + +// from http://infolab.stanford.edu/~manku/bitcount/bitcount.html +#define TWO(c) (0x1u << (c)) +#define MASK(c) (((unsigned int)(-1)) / (TWO(TWO(c)) + 1u)) +#define COUNT(x,c) ((x) & MASK(c)) + (((x) >> (TWO(c))) & MASK(c)) + +int bitcount (unsigned int n) +{ + n = COUNT(n, 0); + n = COUNT(n, 1); + n = COUNT(n, 2); + n = COUNT(n, 3); + return COUNT(n, 4); +} + +#undef TWO +#undef MASK +#undef COUNT + +static bool isUnicodeSpace(UChar ch) +{ + return ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r' || ch == 0xa0; +} + +static bool validZip(int stateIndex, const UChar* zipPtr) +{ + static const struct { + char mLow; + char mHigh; + char mException1; + char mException2; + } zipRange[] = { + { 99, 99, -1, -1 }, // AK Alaska + { 35, 36, -1, -1 }, // AL Alabama + { 71, 72, -1, -1 }, // AR Arkansas + { 96, 96, -1, -1 }, // AS American Samoa + { 85, 86, -1, -1 }, // AZ Arizona + { 90, 96, -1, -1 }, // CA California + { 80, 81, -1, -1 }, // CO Colorado + { 6, 6, -1, -1 }, // CT Connecticut + { 20, 20, -1, -1 }, // DC District of Columbia + { 19, 19, -1, -1 }, // DE Delaware + { 32, 34, -1, -1 }, // FL Florida + { 96, 96, -1, -1 }, // FM Federated States of Micronesia + { 30, 31, -1, -1 }, // GA Georgia + { 96, 96, -1, -1 }, // GU Guam + { 96, 96, -1, -1 }, // HI Hawaii + { 50, 52, -1, -1 }, // IA Iowa + { 83, 83, -1, -1 }, // ID Idaho + { 60, 62, -1, -1 }, // IL Illinois + { 46, 47, -1, -1 }, // IN Indiana + { 66, 67, 73, -1 }, // KS Kansas + { 40, 42, -1, -1 }, // KY Kentucky + { 70, 71, -1, -1 }, // LA Louisiana + { 1, 2, -1, -1 }, // MA Massachusetts + { 20, 21, -1, -1 }, // MD Maryland + { 3, 4, -1, -1 }, // ME Maine + { 96, 96, -1, -1 }, // MH Marshall Islands + { 48, 49, -1, -1 }, // MI Michigan + { 55, 56, -1, -1 }, // MN Minnesota + { 63, 65, -1, -1 }, // MO Missouri + { 96, 96, -1, -1 }, // MP Northern Mariana Islands + { 38, 39, -1, -1 }, // MS Mississippi + { 55, 56, -1, -1 }, // MT Montana + { 27, 28, -1, -1 }, // NC North Carolina + { 58, 58, -1, -1 }, // ND North Dakota + { 68, 69, -1, -1 }, // NE Nebraska + { 3, 4, -1, -1 }, // NH New Hampshire + { 7, 8, -1, -1 }, // NJ New Jersey + { 87, 88, 86, -1 }, // NM New Mexico + { 88, 89, 96, -1 }, // NV Nevada + { 10, 14, 0, 6 }, // NY New York + { 43, 45, -1, -1 }, // OH Ohio + { 73, 74, -1, -1 }, // OK Oklahoma + { 97, 97, -1, -1 }, // OR Oregon + { 15, 19, -1, -1 }, // PA Pennsylvania + { 6, 6, 0, 9 }, // PR Puerto Rico + { 96, 96, -1, -1 }, // PW Palau + { 2, 2, -1, -1 }, // RI Rhode Island + { 29, 29, -1, -1 }, // SC South Carolina + { 57, 57, -1, -1 }, // SD South Dakota + { 37, 38, -1, -1 }, // TN Tennessee + { 75, 79, 87, 88 }, // TX Texas + { 84, 84, -1, -1 }, // UT Utah + { 22, 24, 20, -1 }, // VA Virginia + { 6, 9, -1, -1 }, // VI Virgin Islands + { 5, 5, -1, -1 }, // VT Vermont + { 98, 99, -1, -1 }, // WA Washington + { 53, 54, -1, -1 }, // WI Wisconsin + { 24, 26, -1, -1 }, // WV West Virginia + { 82, 83, -1, -1 } // WY Wyoming + }; + + int zip = zipPtr[0] - '0'; + zip *= 10; + zip += zipPtr[1] - '0'; + int low = zipRange[stateIndex].mLow; + int high = zipRange[stateIndex].mHigh; + if (zip >= low && zip <= high) + return true; + if (zip == zipRange[stateIndex].mException1) + return true; + if (zip == zipRange[stateIndex].mException2) + return true; + return false; +} + +#define MAX_PLACE_NAME_LENGTH 25 // the longest allowable one word place name + +CacheBuilder::FoundState CacheBuilder::FindAddress(const UChar* chars, + unsigned length, int* start, int* end, bool caseInsensitive) +{ + FindState addressState; + FindReset(&addressState); + addressState.mWords[0] = addressState.mStarts[0] = chars; + addressState.mCaseInsensitive = caseInsensitive; + FoundState state = FindPartialAddress(chars, chars, length, &addressState); + if (state == FOUND_PARTIAL && addressState.mProgress == ZIP_CODE && + addressState.mNumberCount == 0) { + addressState.mProgress = FIND_STREET; + state = FindPartialAddress(NULL, NULL, 0, &addressState); + } + *start = addressState.mStartResult; + *end = addressState.mEndResult; + return state; +} + +CacheBuilder::FoundState CacheBuilder::FindPartialAddress(const UChar* baseChars, + const UChar* chars, unsigned length, FindState* s) +{ + // lower case letters are optional; trailing asterisk is optional 's' + static char const* const longStreetNames[] = { + "\x04" "LleY" "\x04" "NneX" "\x05" "RCade" "\x05" "VEnue" "\x06" "LAMEDA", // A + "\x04" "aYoU" "\x04" "eaCH" "\x03" "eND" "\x05" "LuFf*" "\x05" "oTtoM" + "\x08" "ouLeVarD" "\x05" "Ranch" "\x05" "RidGe" "\x05" "RooK*" + "\x04" "urG*" "\x05" "YPass" "\x07" "roadWAY", // B + "\x05" "AMINO" + "\x03" "amP" "\x05" "anYoN" "\x03" "aPE" "\x07" "auSeWaY" "\x06" "enTeR*" + "\x06" "IRcle*" "\x05" "LiFf*" "\x03" "LuB" "\x05" "oMmoN" "\x06" "ORner*" + "\x05" "ouRSE" "\x05" "ourT*" "\x04" "oVe*" "\x04" "ReeK" "\x07" "REScent" + "\x04" "ReST" "\x07" "ROSSING" "\x08" "ROSSROAD" "\x04" "URVe" + "\x05" "AMINO" "\x06" "IRCULO" "\x07" "REScent", // C + "\x03" "aLe" "\x02" "aM" "\x05" "iVide" "\x05" "Rive*", // D + "\x06" "STate*" "\x09" "XPresswaY" "\x09" "XTension*", // E + "\x04" "ALL*" "\x04" "eRrY" "\x05" "ieLD*" "\x04" "LaT*" "\x04" "oRD*" + "\x05" "oReST" "\x05" "oRGe*" "\x04" "oRK*" "\x03" "orT" "\x06" "reeWaY", // F + "\x06" "arDeN*" "\x06" "aTeWaY" "\x04" "LeN*" "\x05" "ReeN*" "\x05" "RoVe*", // G + "\x06" "arBoR*" "\x04" "aVeN" "\x06" "eighTS" "\x06" "ighWaY" "\x04" "iLl*" + "\x05" "OLloW", // H + "\x04" "NLeT" "\x06" "Sland*" "\x03" "SLE", // I + "\x08" "unCTion*", // J + "\x03" "eY*" "\x05" "NoLl*", // K + "\x04" "aKe*" "\x03" "AND" "\x06" "aNDinG" "\x03" "aNe" "\x05" "iGhT*" + "\x03" "oaF" "\x04" "oCK*" "\x04" "oDGe" "\x03" "OOP", // L + "\x03" "ALL" "\x05" "aNoR*" "\x06" "eaDoW*" "\x03" "EWS" "\x04" "iLl*" + "\x06" "iSsioN" "\x07" "oTorWaY" "\x04" "ounT" "\x08" "ounTaiN*", // M + "\x03" "eCK", // N + "\x06" "RCHard" "\x03" "VAL" "\x07" "verPASs", // O + "\x04" "ARK*" "\x07" "arKWaY*" "\x03" "ASS" "\x06" "aSsaGE" "\x03" "ATH" + "\x03" "IKE" "\x04" "iNE*" "\x04" "Lace" "\x05" "LaiN*" "\x04" "LaZa" + "\x05" "oinT*" "\x04" "oRT*" "\x06" "Rairie" "\x06" "RIVADA", // P + NULL, + "\x05" "ADiaL" "\x03" "AMP" "\x04" "aNCH" "\x05" "aPiD*" + "\x03" "eST" + "\x05" "iDGe*" "\x04" "IVer" "\x04" "oaD*" "\x04" "ouTE" "\x02" "OW" + "\x02" "UE" "\x02" "UN", // R + "\x05" "HoaL*" "\x05" "HoRe*" "\x05" "KyWaY" "\x06" "PrinG*" "\x04" "PUR*" + "\x06" "Quare*" "\x06" "TAtion" "\x08" "TRAvenue" "\x05" "TReaM" + "\x06" "Treet*" "\x05" "uMmiT" "\x07" "PeeDWaY", // S + "\x06" "ERrace" "\x09" "hRoughWaY" "\x04" "RaCE" "\x04" "RAcK" "\x09" "RaFficwaY" + "\x04" "RaiL" "\x05" "UNneL" "\x07" "urnPiKE", // T + "\x08" "nderPASs" "\x05" "Nion*", // U + "\x06" "aLleY*" "\x06" "IAduct" "\x04" "ieW*" "\x07" "iLlaGe*" "\x04" "iLle" + "\x04" "ISta", // V + "\x04" "ALK*" "\x03" "ALL" "\x03" "AY*" "\x04" "eLl*", // W + "\x03" "ING" "\x02" "RD", // X + }; + + static char const* const longStateNames[] = { + "\x8e" "la" "\x85" "bama" "\x02" "\x84" "ska" "\x01" "\x8f" "merican Samoa" "\x04" + "\x91" "r" "\x86" "izona" "\x05" "\x87" "kansas" "\x03", + NULL, + "\x8b" "alifornia" "\x06" "\x95" "o" "\x87" "lorado" "\x07" "\x8a" "nnecticut" "\x08", + "\x89" "elaware" "\x0a" "\x95" "istrict of Columbia" "\x09", + NULL, + "\x9f" "ederated States of Micronesia" "\x0c" "\x88" "lorida" "\x0b", + "\x85" "uam" "\x0e" "\x88" "eorgia" "\x0d", + "\x87" "awaii" "\x0f", + "\x86" "daho" "\x11" "\x89" "llinois" "\x12" "\x88" "ndiana" "\x13" "\x85" + "owa" "\x10", + NULL, + "\x87" "ansas" "\x14" "\x89" "entucky" "\x15", + "\x8a" "ouisiana" "\x16", + "\x86" "aine" "\x19" "\x99" "ar" "\x8e" "shall Islands" "\x1a" "\x86" "yland" "\x18" + "\x8e" "assachusetts" "\x17" "\x93" "i" "\x87" "chigan" "\x1b" + "\x88" "nnesota" "\x1c" "\x93" "iss" "\x88" "issippi" "\x1f" "\x85" + "ouri" "\x1d" "\x88" "ontana" "\x20", + "\x90" "e" "\x87" "braska" "\x23" "\x85" "vada" "\x27" "\xa5" "ew " "\x8a" + "Hampshire" "\x24" "\x87" "Jersey" "\x25" "\x87" "Mexico" "\x26" + "\x85" "York" "\x28" "\x98" "orth " "\x89" "Carolina" "\x21" "\x87" + "Dakota" "\x22" "\x99" "orthern Mariana Islands" "\x1e", + "\x85" "hio" "\x29" "\x89" "klahoma" "\x2a" "\x87" "regon" "\x2b", + "\x86" "alau" "\x2e" "\x8d" "ennsylvania" "\x2c" "\x8c" "uerto Rico" "\x2d", + NULL, + "\x8d" "hode Island" "\x2f", + "\x98" "outh " "\x89" "Carolina" "\x30" "\x87" "Dakota" "\x31", + "\x90" "e" "\x88" "nnessee" "\x32" "\x84" "xas" "\x33", + "\x85" "tah" "\x34", + "\x88" "ermont" "\x37" "\x94" "irgin" "\x89" " Islands" "\x36" "\x83" "ia" "\x35", + "\x8b" "ashington" "\x38" "\x8e" "est Virginia" "\x3a" "\x8a" "isconsin" "\x39" + "\x88" "yoming" "\x3b" + }; + +#if 0 // DEBUG_NAV_UI + static char const* const progressNames[] = { + "NO_ADDRESS", + "SKIP_TO_SPACE", + "HOUSE_NUMBER", + "NUMBER_TRAILING_SPACE", + "ADDRESS_LINE", + "STATE_NAME", + "SECOND_HALF", + "ZIP_CODE", + "PLUS_4", + "FIND_STREET" + }; +#endif + // strategy: US only support at first + // look for a 1 - 5 digit number for a street number (no support for 'One Microsoft Way') + // ignore if preceded by '#', Suite, Ste, Rm + // look for two or more words (up to 5? North Frank Lloyd Wright Blvd) + // note: "The Circle at North Hills St." has six words, and a lower 'at' -- allow at, by, of, in, the, and, ... ? + // if a word starts with a lowercase letter, no match + // allow: , . - # / (for 1/2) ' " + // don't look for street name type yet + // look for one or two delimiters to represent possible 2nd addr line and city name + // look for either full state name, or state two letters, and/or zip code (5 or 9 digits) + // now look for street suffix, either in full or abbreviated form, with optional 's' if there's an asterisk + + s->mCurrentStart = chars; + s->mEnd = chars + length; + int candIndex = 0; + bool retryState; + bool mustBeAllUpper = false; + bool secondHalf = false; + chars -= 1; + UChar ch = s->mCurrent; + while (++chars <= s->mEnd) { + UChar prior = ch; + ch = chars < s->mEnd ? *chars : ' '; + switch (s->mProgress) { + case NO_ADDRESS: + if (WTF::isASCIIDigit(ch) == false) { + if (ch != 'O') // letter 'O', not zero + continue; + if (s->mEnd - chars < 3) + continue; + prior = *++chars; + ch = *++chars; + if ((prior != 'n' || ch != 'e') && (prior != 'N' || ch != 'E')) + continue; + if (isUnicodeSpace(*++chars) == false) + continue; + s->mProgress = ADDRESS_LINE; + s->mStartResult = chars - 3 - s->mCurrentStart; + continue; + } + if (isUnicodeSpace(prior) == false) { + s->mProgress = SKIP_TO_SPACE; + continue; + } + s->mNumberCount = 1; + s->mProgress = HOUSE_NUMBER; + s->mStartResult = chars - s->mCurrentStart; + continue; + case SKIP_TO_SPACE: + if (isUnicodeSpace(ch) == false) + continue; + break; + case HOUSE_NUMBER: + if (WTF::isASCIIDigit(ch)) { + if (++s->mNumberCount >= 6) + s->mProgress = SKIP_TO_SPACE; + continue; + } + if (WTF::isASCIIUpper(ch)) { // allow one letter after house number, e.g. 12A SKOLFIELD PL, HARPSWELL, ME 04079 + if (WTF::isASCIIDigit(prior) == false) + s->mProgress = SKIP_TO_SPACE; + continue; + } + if (ch == '-') { + if (s->mNumberCount > 0) { // permit 21-23 ELM ST + ++s->mNumberCount; + continue; + } + } + s->mNumberCount = 0; + s->mProgress = NUMBER_TRAILING_SPACE; + case NUMBER_TRAILING_SPACE: + if (isUnicodeSpace(ch)) + continue; + if (0 && WTF::isASCIIDigit(ch)) { + s->mNumberCount = 1; + s->mProgress = HOUSE_NUMBER; + s->mStartResult = chars - s->mCurrentStart; + continue; + } + if (WTF::isASCIIDigit(ch) == false && WTF::isASCIIUpper(ch) == false) + break; + s->mProgress = ADDRESS_LINE; + case ADDRESS_LINE: + if (WTF::isASCIIAlpha(ch) || ch == '\'' || ch == '-' || ch == '&' || ch == '(' || ch == ')') { + if (++s->mLetterCount > 1) { + s->mNumberWords &= ~(1 << s->mWordCount); + continue; + } + if (s->mNumberCount >= 5) + break; +// FIXME: the test below was added to give up on a non-address, but it +// incorrectly discards addresses where the house number is in one node +// and the street name is in the next; I don't recall what the failing case +// is that suggested this fix. +// if (s->mWordCount == 0 && s->mContinuationNode) +// return FOUND_NONE; + s->newWord(baseChars, chars); + if (WTF::isASCIILower(ch) && s->mNumberCount == 0) + s->mFirstLower = chars; + s->mNumberCount = 0; + if (WTF::isASCIILower(ch) || (WTF::isASCIIAlpha(ch) == false && ch != '-')) + s->mNumberWords &= ~(1 << s->mWordCount); + s->mUnparsed = true; + continue; + } else if (s->mLetterCount >= MAX_PLACE_NAME_LENGTH) { + break; + } else if (s->mFirstLower != NULL) { + if (s->mCaseInsensitive) + goto resetWord; + size_t length = chars - s->mFirstLower; + if (length > 3) + break; + if (length == 3 && strCharCmp("and" "the", s->mFirstLower, 3, 2) == false) + break; + if (length == 2 && strCharCmp("at" "by" "el" "in" "of", s->mFirstLower, 2, 5) == false) + break; + goto resetWord; + } + if (ch == ',' || ch == '*') { // delimits lines + // asterisk as delimiter: http://www.sa.sc.edu/wellness/members.html + if (++s->mLineCount > 5) + break; + goto lookForState; + } + if (isUnicodeSpace(ch) || prior == '-') { + lookForState: + if (s->mUnparsed == false) + continue; + const UChar* candidate = s->mWords[s->mWordCount]; + UChar firstLetter = candidate[0]; + if (WTF::isASCIIUpper(firstLetter) == false && WTF::isASCIIDigit(firstLetter) == false) + goto resetWord; + s->mWordCount++; + if ((s->mWordCount == 2 && s->mNumberWords == 3 && WTF::isASCIIDigit(s->mWords[1][1])) || // choose second of 8888 333 Main + (s->mWordCount >= sizeof(s->mWords) / sizeof(s->mWords[0]) - 1)) { // subtract 1 since state names may have two parts + // search for simple number already stored since first potential house # didn't pan out + if (s->mNumberWords == 0) + break; + int shift = 0; + while ((s->mNumberWords & (1 << shift)) == 0) + shift++; + s->mNumberWords >>= ++shift; + if (s->mBases[0] != s->mBases[shift]) // if we're past the original node, bail + break; + s->shiftWords(shift); + s->mStartResult = s->mWords[0] - s->mStarts[0]; + s->mWordCount -= shift; + // FIXME: need to adjust lineCount to account for discarded delimiters + } + if (s->mWordCount < 4) + goto resetWord; + firstLetter -= 'A'; + if (firstLetter > 'W' - 'A') + goto resetWord; + UChar secondLetter = candidate[1]; + if (prior == '-') + s->mLetterCount--; // trim trailing dashes, to accept CA-94043 + if (s->mLetterCount == 2) { + secondLetter -= 'A'; + if (secondLetter > 'Z' - 'A') + goto resetWord; + if ((stateTwoLetter[firstLetter] & 1 << secondLetter) != 0) { + // special case to ignore 'et al' + if (strCharCmp("ET", s->mWords[s->mWordCount - 2], 2, 1) == false) { + s->mStateWord = s->mWordCount - 1; + s->mZipHint = firstIndex[firstLetter] + + bitcount(stateTwoLetter[firstLetter] & ((1 << secondLetter) - 1)); + goto foundStateName; + } + } + goto resetWord; + } + s->mStates = longStateNames[firstLetter]; + if (s->mStates == NULL) + goto resetWord; + mustBeAllUpper = false; + s->mProgress = STATE_NAME; + unsigned char section = s->mStates[0]; + ASSERT(section > 0x80); + s->mSectionLength = section & 0x7f; + candIndex = 1; + secondHalf = false; + s->mStateWord = s->mWordCount - 1; + goto stateName; + } + if (WTF::isASCIIDigit(ch)) { + if (s->mLetterCount == 0) { + if (++s->mNumberCount > 1) + continue; + if (s->mWordCount == 0 && s->mContinuationNode) + return FOUND_NONE; + s->newWord(baseChars, chars); + s->mNumberWords |= 1 << s->mWordCount; + s->mUnparsed = true; + } + continue; + } + if (ch == '.') { // optionally can follow letters + if (s->mLetterCount == 0) + break; + if (s->mNumberCount > 0) + break; + continue; + } + if (ch == '/') // between numbers (1/2) between words (12 Main / Ste 4d) + goto resetWord; + if (ch == '#') // can precede numbers, allow it to appear randomly + goto resetWord; + if (ch == '"') // sometimes parts of addresses are quoted (FIXME: cite an example here) + continue; + break; + case SECOND_HALF: + if (WTF::isASCIIAlpha(ch)) { + if (s->mLetterCount == 0) { + s->newWord(baseChars, chars); + s->mWordCount++; + } + s->mLetterCount++; + continue; + } + if (WTF::isASCIIDigit(ch) == false) { + if (s->mLetterCount > 0) { + s->mProgress = STATE_NAME; + candIndex = 0; + secondHalf = true; + goto stateName; + } + continue; + } + s->mProgress = ADDRESS_LINE; + goto resetState; + case STATE_NAME: + stateName: + // pick up length of first section + do { + int stateIndex = 1; + int skip = 0; + int prefix = 0; + bool subStr = false; + do { + unsigned char match = s->mStates[stateIndex]; + if (match >= 0x80) { + if (stateIndex == s->mSectionLength) + break; + subStr = true; + // if (skip > 0) + // goto foundStateName; + prefix = candIndex; + skip = match & 0x7f; + match = s->mStates[++stateIndex]; + } + UChar candChar = s->mWords[s->mWordCount - 1][candIndex]; + if (mustBeAllUpper && WTF::isASCIILower(candChar)) + goto skipToNext; + if (match != candChar) { + if (match != WTF::toASCIILower(candChar)) { + skipToNext: + if (subStr == false) + break; + if (stateIndex == s->mSectionLength) { + if (secondHalf) { + s->mProgress = ADDRESS_LINE; + goto resetState; + } + break; + } + stateIndex += skip; + skip = 0; + candIndex = prefix; + continue; // try next substring + } + mustBeAllUpper = true; + } + int nextindex = stateIndex + 1; + if (++candIndex >= s->mLetterCount && s->mStates[nextindex] == ' ') { + s->mProgress = SECOND_HALF; + s->mStates += nextindex; + s->mSectionLength -= nextindex; + goto resetWord; + } + if (nextindex + 1 == s->mSectionLength || skip == 2) { + s->mZipHint = s->mStates[nextindex] - 1; + goto foundStateName; + } + stateIndex += 1; + skip -= 1; + } while (true); + s->mStates += s->mSectionLength; + ASSERT(s->mStates[0] == 0 || (unsigned) s->mStates[0] > 0x80); + s->mSectionLength = s->mStates[0] & 0x7f; + candIndex = 1; + subStr = false; + } while (s->mSectionLength != 0); + s->mProgress = ADDRESS_LINE; + goto resetState; + foundStateName: + s->mEndResult = chars - s->mCurrentStart; + s->mEndWord = s->mWordCount - 1; + s->mProgress = ZIP_CODE; + // a couple of delimiters is an indication that the state name is good + // or, a non-space / non-alpha-digit is also good + s->mZipDelimiter = s->mLineCount > 2 + || isUnicodeSpace(ch) == false + || chars == s->mEnd; + if (WTF::isASCIIDigit(ch)) + s->mZipStart = chars; + goto resetState; + case ZIP_CODE: + if (WTF::isASCIIDigit(ch)) { + int count = ++s->mNumberCount; + if (count == 1) { + if (WTF::isASCIIDigit(prior)) + ++s->mNumberCount; + else + s->mZipStart = chars; + } + if (count <= 9) + continue; + } else if (isUnicodeSpace(ch)) { + if (s->mNumberCount == 0) { + s->mZipDelimiter = true; // two spaces delimit state name + continue; + } + } else if (ch == '-') { + if (s->mNumberCount == 5 && validZip(s->mZipHint, s->mZipStart)) { + s->mNumberCount = 0; + s->mProgress = PLUS_4; + continue; + } + if (s->mNumberCount == 0) + s->mZipDelimiter = true; + } else if (WTF::isASCIIAlpha(ch) == false) + s->mZipDelimiter = true; + else { + if (s->mLetterCount == 0) { + s->newWord(baseChars, chars); + s->mUnparsed = true; + } + ++s->mLetterCount; + } + if (s->mNumberCount == 5 || s->mNumberCount == 9) { + if (validZip(s->mZipHint, s->mZipStart) == false) + goto noZipMatch; + s->mEndResult = chars - s->mCurrentStart; + s->mEndWord = s->mWordCount - 1; + } else if (s->mZipDelimiter == false) { + noZipMatch: + --chars; + s->mProgress = ADDRESS_LINE; + continue; + } + s->mProgress = FIND_STREET; + goto findStreet; + case PLUS_4: + if (WTF::isASCIIDigit(ch)) { + if (++s->mNumberCount <= 4) + continue; + } + if (isUnicodeSpace(ch)) { + if (s->mNumberCount == 0) + continue; + } + if (s->mNumberCount == 4) { + if (WTF::isASCIIAlpha(ch) == false) { + s->mEndResult = chars - s->mCurrentStart; + s->mEndWord = s->mWordCount - 1; + } + } else if (s->mNumberCount != 0) + break; + s->mProgress = FIND_STREET; + case FIND_STREET: + findStreet: + retryState = false; + for (int wordsIndex = s->mStateWord - 1; wordsIndex >= 0; --wordsIndex) { + const UChar* test = s->mWords[wordsIndex]; + UChar letter = test[0]; + letter -= 'A'; + if (letter > 'X' - 'A') + continue; + const char* names = longStreetNames[letter]; + if (names == NULL) + continue; + int offset; + while ((offset = *names++) != 0) { + int testIndex = 1; + bool abbr = false; + for (int idx = 0; idx < offset; idx++) { + char nameLetter = names[idx]; + char testUpper = WTF::toASCIIUpper(test[testIndex]); + if (nameLetter == '*') { + if (testUpper == 'S') + testIndex++; + break; + } + bool fullOnly = WTF::isASCIILower(nameLetter); + nameLetter = WTF::toASCIIUpper(nameLetter); + if (testUpper == nameLetter) { + if (abbr && fullOnly) + goto nextTest; + testIndex++; + continue; + } + if (fullOnly == false) + goto nextTest; + abbr = true; + } + letter = &test[testIndex] < s->mEnds[wordsIndex] ? + test[testIndex] : ' '; + if (WTF::isASCIIAlpha(letter) == false && WTF::isASCIIDigit(letter) == false) { + if (s->mNumberWords != 0) { + int shift = 0; + int wordReduction = -1; + do { + while ((s->mNumberWords & (1 << shift)) == 0) + shift++; + if (shift > wordsIndex) + break; + wordReduction = shift; + } while (s->mNumberWords >> ++shift != 0); + if (wordReduction >= 0) { + if (s->mContinuationNode) { + if (retryState) + break; + return FOUND_NONE; + } + s->mStartResult = s->mWords[wordReduction] - s->mStarts[wordReduction]; + } + } + if (wordsIndex != s->mStateWord - 1) + return FOUND_COMPLETE; + retryState = true; + } + nextTest: + names += offset; + } + } + if (retryState) { + s->mProgress = ADDRESS_LINE; + s->mStates = NULL; + continue; + } + if (s->mNumberWords != 0) { + unsigned shift = 0; + while ((s->mNumberWords & (1 << shift)) == 0) + shift++; + s->mNumberWords >>= ++shift; + if (s->mBases[0] != s->mBases[shift]) + return FOUND_NONE; + s->shiftWords(shift); + s->mStartResult = s->mWords[0] - s->mStarts[0]; + s->mWordCount -= shift; + s->mProgress = ADDRESS_LINE; + --chars; + continue; + } + break; + } + if (s->mContinuationNode) + return FOUND_NONE; + s->mProgress = NO_ADDRESS; + s->mWordCount = s->mLineCount = 0; + s->mNumberWords = 0; + resetState: + s->mStates = NULL; + resetWord: + s->mNumberCount = s->mLetterCount = 0; + s->mFirstLower = NULL; + s->mUnparsed = false; + } + s->mCurrent = ch; + return s->mProgress == NO_ADDRESS ? FOUND_NONE : FOUND_PARTIAL; +} + +// Recogize common email patterns only. Currently has lots of state, walks text forwards and backwards -- will be +// a real challenge to adapt to walk text across multiple nodes, I imagine +// FIXME: it's too hard for the caller to call these incrementally -- it's probably best for this to +// either walk the node tree directly or make a callout to get the next or previous node, if there is one +// walking directly will avoid adding logic in caller to track the multiple partial or full nodes that compose this +// text pattern. +CacheBuilder::FoundState CacheBuilder::FindPartialEMail(const UChar* chars, unsigned length, + FindState* s) +{ + // the following tables were generated by tests/browser/focusNavigation/BrowserDebug.cpp + // hand-edit at your own risk + static const int domainTwoLetter[] = { + 0x02df797c, // a followed by: [cdefgilmnoqrstuwxz] + 0x036e73fb, // b followed by: [abdefghijmnorstvwyz] + 0x03b67ded, // c followed by: [acdfghiklmnorsuvxyz] + 0x02005610, // d followed by: [ejkmoz] + 0x001e00d4, // e followed by: [ceghrstu] + 0x00025700, // f followed by: [ijkmor] + 0x015fb9fb, // g followed by: [abdefghilmnpqrstuwy] + 0x001a3400, // h followed by: [kmnrtu] + 0x000f7818, // i followed by: [delmnoqrst] + 0x0000d010, // j followed by: [emop] + 0x0342b1d0, // k followed by: [eghimnprwyz] + 0x013e0507, // l followed by: [abcikrstuvy] + 0x03fffccd, // m followed by: [acdghklmnopqrstuvwxyz] + 0x0212c975, // n followed by: [acefgilopruz] + 0x00001000, // o followed by: [m] + 0x014e3cf1, // p followed by: [aefghklmnrstwy] + 0x00000001, // q followed by: [a] + 0x00504010, // r followed by: [eouw] + 0x032a7fdf, // s followed by: [abcdeghijklmnortvyz] + 0x026afeec, // t followed by: [cdfghjklmnoprtvwz] + 0x03041441, // u followed by: [agkmsyz] + 0x00102155, // v followed by: [aceginu] + 0x00040020, // w followed by: [fs] + 0x00000000, // x + 0x00180010, // y followed by: [etu] + 0x00401001, // z followed by: [amw] + }; + + static char const* const longDomainNames[] = { + "\x03" "ero" "\x03" "rpa", // aero, arpa + "\x02" "iz", // biz + "\x02" "at" "\x02" "om" "\x03" "oop", // cat, com, coop + NULL, // d + "\x02" "du", // edu + NULL, // f + "\x02" "ov", // gov + NULL, // h + "\x03" "nfo" "\x02" "nt", // info, int + "\x03" "obs", // jobs + NULL, // k + NULL, // l + "\x02" "il" "\x03" "obi" "\x05" "useum", // mil, mobi, museum + "\x03" "ame" "\x02" "et", // name, net + "\x02" "rg", // , org + "\x02" "ro", // pro + NULL, // q + NULL, // r + NULL, // s + "\x05" "ravel", // travel + NULL, // u + NULL, // v + NULL, // w + NULL, // x + NULL, // y + NULL, // z + }; + + const UChar* start = chars; + const UChar* end = chars + length; + while (chars < end) { + UChar ch = *chars++; + if (ch != '@') + continue; + const UChar* atLocation = chars - 1; + // search for domain + ch = *chars++ | 0x20; // convert uppercase to lower + if (ch < 'a' || ch > 'z') + continue; + while (chars < end) { + ch = *chars++; + if (IsDomainChar(ch) == false) + goto nextAt; + if (ch != '.') + continue; + UChar firstLetter = *chars++ | 0x20; // first letter of the domain + if (chars >= end) + return FOUND_NONE; // only one letter; must be at least two + firstLetter -= 'a'; + if (firstLetter > 'z' - 'a') + continue; // non-letter followed '.' + int secondLetterMask = domainTwoLetter[firstLetter]; + ch = *chars | 0x20; // second letter of the domain + ch -= 'a'; + if (ch >= 'z' - 'a') + continue; + bool secondMatch = (secondLetterMask & 1 << ch) != 0; + const char* wordMatch = longDomainNames[firstLetter]; + int wordIndex = 0; + while (wordMatch != NULL) { + int len = *wordMatch++; + char match; + do { + match = wordMatch[wordIndex]; + if (match < 0x20) + goto foundDomainStart; + if (chars[wordIndex] != match) + break; + wordIndex++; + } while (true); + wordMatch += len; + if (*wordMatch == '\0') + break; + wordIndex = 0; + } + if (secondMatch) { + wordIndex = 1; + foundDomainStart: + chars += wordIndex; + if (chars < end) { + ch = *chars; + if (ch != '.') { + if (IsDomainChar(ch)) + goto nextDot; + } else if (chars + 1 < end && IsDomainChar(chars[1])) + goto nextDot; + } + // found domain. Search backwards from '@' for beginning of email address + s->mEndResult = chars - start; + chars = atLocation; + if (chars <= start) + goto nextAt; + ch = *--chars; + if (ch == '.') + goto nextAt; // mailbox can't end in period + do { + if (IsMailboxChar(ch) == false) { + chars++; + break; + } + if (chars == start) + break; + ch = *--chars; + } while (true); + UChar firstChar = *chars; + if (firstChar == '.' || firstChar == '@') // mailbox can't start with period or be empty + goto nextAt; + s->mStartResult = chars - start; + return FOUND_COMPLETE; + } + nextDot: + ; + } +nextAt: + chars = atLocation + 1; + } + return FOUND_NONE; +} + +#define PHONE_PATTERN "(200) /-.\\ 100 -. 0000" // poor man's regex: parens optional, any one of punct, digit smallest allowed + +CacheBuilder::FoundState CacheBuilder::FindPartialNumber(const UChar* chars, unsigned length, + FindState* s) +{ + char* pattern = s->mPattern; + UChar* store = s->mStorePtr; + const UChar* start = chars; + const UChar* end = chars + length; + const UChar* lastDigit = NULL; + do { + bool initialized = s->mInitialized; + while (chars < end) { + if (initialized == false) { + s->mBackTwo = s->mBackOne; + s->mBackOne = s->mCurrent; + } + UChar ch = s->mCurrent = *chars; + do { + char patternChar = *pattern; + switch (patternChar) { + case '2': + if (initialized == false) { + s->mStartResult = chars - start; + initialized = true; + } + case '0': + case '1': + if (ch < patternChar || ch > '9') + goto resetPattern; + *store++ = ch; + pattern++; + lastDigit = chars; + goto nextChar; + case '\0': + if (WTF::isASCIIDigit(ch) == false) { + *store = '\0'; + goto checkMatch; + } + goto resetPattern; + case ' ': + if (ch == patternChar) + goto nextChar; + break; + case '(': + if (ch == patternChar) { + s->mStartResult = chars - start; + initialized = true; + s->mOpenParen = true; + } + goto commonPunctuation; + case ')': + if ((ch == patternChar) ^ s->mOpenParen) + goto resetPattern; + default: + commonPunctuation: + if (ch == patternChar) { + pattern++; + goto nextChar; + } + } + } while (++pattern); // never false + nextChar: + chars++; + } + break; +resetPattern: + if (s->mContinuationNode) + return FOUND_NONE; + FindResetNumber(s); + pattern = s->mPattern; + store = s->mStorePtr; + } while (++chars < end); +checkMatch: + if (WTF::isASCIIDigit(s->mBackOne != '1' ? s->mBackOne : s->mBackTwo)) + return FOUND_NONE; + *store = '\0'; + s->mStorePtr = store; + s->mPattern = pattern; + s->mEndResult = lastDigit - start + 1; + char pState = pattern[0]; + return pState == '\0' ? FOUND_COMPLETE : pState == '(' || (WTF::isASCIIDigit(pState) && WTF::isASCIIDigit(pattern[-1])) ? + FOUND_NONE : FOUND_PARTIAL; +} + +CacheBuilder::FoundState CacheBuilder::FindPhoneNumber(const UChar* chars, unsigned length, + int* start, int* end) +{ + FindState state; + FindReset(&state); + FoundState result = FindPartialNumber(chars, length, &state); + *start = state.mStartResult; + *end = state.mEndResult; + return result; +} + +void CacheBuilder::FindReset(FindState* state) +{ + memset(state, 0, sizeof(FindState)); + state->mCurrent = ' '; + FindResetNumber(state); +} + +void CacheBuilder::FindResetNumber(FindState* state) +{ + state->mOpenParen = false; + state->mPattern = (char*) PHONE_PATTERN; + state->mStorePtr = state->mStore; +} + +IntRect CacheBuilder::getAreaRect(const HTMLAreaElement* area) +{ + Node* node = area->document(); + while ((node = node->traverseNextNode()) != NULL) { + RenderObject* renderer = node->renderer(); + if (renderer && renderer->isRenderImage()) { + RenderImage* image = static_cast<RenderImage*>(renderer); + HTMLMapElement* map = image->imageMap(); + if (map) { + Node* n; + for (n = map->firstChild(); n; + n = n->traverseNextNode(map)) { + if (n == area) { + if (area->isDefault()) + return image->absoluteBoundingBoxRect(); + return area->getRect(image); + } + } + } + } + } + return IntRect(); +} + +void CacheBuilder::GetGlobalOffset(Node* node, int* x, int * y) +{ + GetGlobalOffset(node->document()->frame(), x, y); +} + +void CacheBuilder::GetGlobalOffset(Frame* frame, int* x, int* y) +{ +// TIMER_PROBE(__FUNCTION__); + ASSERT(x); + ASSERT(y); + *x = 0; + *y = 0; + if (!frame->view()) + return; + Frame* parent; + while ((parent = frame->tree()->parent()) != NULL) { + const WebCore::IntRect& rect = frame->view()->platformWidget()->getBounds(); + *x += rect.x(); + *y += rect.y(); + frame = parent; + } + // TIMER_PROBE_END(); +} + +Frame* CacheBuilder::HasFrame(Node* node) +{ + RenderObject* renderer = node->renderer(); + if (renderer == NULL) + return NULL; + if (renderer->isWidget() == false) + return NULL; + Widget* widget = static_cast<RenderWidget*>(renderer)->widget(); + if (widget == NULL) + return NULL; + if (widget->isFrameView() == false) + return NULL; + return static_cast<FrameView*>(widget)->frame(); +} + +bool CacheBuilder::HasOverOrOut(Node* node) +{ + // eventNames are thread-local data, I avoid using 'static' variable here. + AtomicString eventTypes[2] = { + eventNames().mouseoverEvent, + eventNames().mouseoutEvent + }; + + return NodeHasEventListeners(node, eventTypes, 2); +} + +bool CacheBuilder::HasTriggerEvent(Node* node) +{ + AtomicString eventTypes[5] = { + eventNames().clickEvent, + eventNames().mousedownEvent, + eventNames().mouseupEvent, + eventNames().keydownEvent, + eventNames().keyupEvent + }; + + return NodeHasEventListeners(node, eventTypes, 5); +} + +// #define EMAIL_PATTERN "x@y.d" // where 'x' is letters, numbers, and '-', '.', '_' ; 'y' is 'x' without the underscore, and 'd' is a valid domain +// - 0x2D . 0x2E 0-9 0x30-39 A-Z 0x41-5A _ 0x5F a-z 0x61-7A + +bool CacheBuilder::IsDomainChar(UChar ch) +{ + static const unsigned body[] = {0x03ff6000, 0x07fffffe, 0x07fffffe}; // 0-9 . - A-Z a-z + ch -= 0x20; + if (ch > 'z' - 0x20) + return false; + return (body[ch >> 5] & 1 << (ch & 0x1f)) != 0; +} + +bool CacheBuilder::isFocusableText(NodeWalk* walk, bool more, Node* node, + CachedNodeType* type, String* exported) const +{ + Text* textNode = static_cast<Text*>(node); + StringImpl* string = textNode->dataImpl(); + const UChar* baseChars = string->characters(); +// const UChar* originalBase = baseChars; + int length = string->length(); + int index = 0; + while (index < length && isUnicodeSpace(baseChars[index])) + index++; + if (index >= length) + return false; + if (more == false) { + walk->mStart = 0; + walk->mEnd = 0; + walk->mFinalNode = node; + walk->mLastInline = NULL; + } + // starting with this node, search forward for email, phone number, and address + // if any of the three is found, track it so that the remaining can be looked for later + FoundState state = FOUND_NONE; + RenderText* renderer = (RenderText*) node->renderer(); + bool foundBetter = false; + InlineTextBox* baseInline = walk->mLastInline != NULL ? walk->mLastInline : + renderer->firstTextBox(); + if (baseInline == NULL) + return false; + int start = walk->mEnd; + InlineTextBox* saveInline; + int baseStart, firstStart = start; + saveInline = baseInline; + baseStart = start; + for (CachedNodeType checkType = ADDRESS_CACHEDNODETYPE; + checkType <= PHONE_CACHEDNODETYPE; + checkType = static_cast<CachedNodeType>(checkType + 1)) + { + if ((1 << (checkType - 1) & mAllowableTypes) == 0) + continue; + InlineTextBox* inlineTextBox = baseInline; + FindState findState; + FindReset(&findState); + start = baseStart; + if (checkType == ADDRESS_CACHEDNODETYPE) { + findState.mBases[0] = baseChars; + findState.mWords[0] = baseChars + start; + findState.mStarts[0] = baseChars + start; + } + Node* lastPartialNode = NULL; + int lastPartialEnd = -1; + bool lastPartialMore = false; + bool firstPartial = true; + InlineTextBox* lastPartialInline = NULL; + do { + do { + const UChar* chars = baseChars + start; + length = inlineTextBox == NULL ? 0 : + inlineTextBox->end() - start + 1; + bool wasInitialized = findState.mInitialized; + switch (checkType) { + case ADDRESS_CACHEDNODETYPE: + state = FindPartialAddress(baseChars, chars, length, &findState); + break; + case EMAIL_CACHEDNODETYPE: + state = FindPartialEMail(chars, length, &findState); + break; + case PHONE_CACHEDNODETYPE: + state = FindPartialNumber(chars, length, &findState); + break; + default: + ASSERT(0); + } + findState.mInitialized = state != FOUND_NONE; + if (wasInitialized != findState.mInitialized) + firstStart = start; + if (state == FOUND_PARTIAL) { + lastPartialNode = node; + lastPartialEnd = findState.mEndResult + start; + lastPartialMore = firstPartial && + lastPartialEnd < (int) string->length(); + firstPartial = false; + lastPartialInline = inlineTextBox; + findState.mContinuationNode = true; + } else if (state == FOUND_COMPLETE) { + if (foundBetter == false || walk->mStart > findState.mStartResult) { + walk->mStart = findState.mStartResult + firstStart; + if (findState.mEndResult > 0) { + walk->mFinalNode = node; + walk->mEnd = findState.mEndResult + start; + walk->mMore = node == textNode && + walk->mEnd < (int) string->length(); + walk->mLastInline = inlineTextBox; + } else { + walk->mFinalNode = lastPartialNode; + walk->mEnd = lastPartialEnd; + walk->mMore = lastPartialMore; + walk->mLastInline = lastPartialInline; + } + *type = checkType; + if (checkType == PHONE_CACHEDNODETYPE) { + const UChar* store = findState.mStore; + *exported = String(store); + } else { + Node* temp = textNode; + length = 1; + start = walk->mStart; + exported->truncate(0); + do { + Text* tempText = static_cast<Text*>(temp); + StringImpl* string = tempText->dataImpl(); + int end = tempText == walk->mFinalNode ? + walk->mEnd : string->length(); + exported->append(String(string->substring( + start, end - start))); + ASSERT(end > start); + length += end - start + 1; + if (temp == walk->mFinalNode) + break; + start = 0; + do { + temp = temp->traverseNextNode(); + ASSERT(temp); + } while (temp->isTextNode() == false); + // add a space in between text nodes to avoid + // words collapsing together + exported->append(" "); + } while (true); + } + foundBetter = true; + } + goto tryNextCheckType; + } else if (findState.mContinuationNode) + break; + if (inlineTextBox == NULL) + break; + inlineTextBox = inlineTextBox->nextTextBox(); + if (inlineTextBox == NULL) + break; + start = inlineTextBox->start(); + if (state == FOUND_PARTIAL && node == textNode) + findState.mContinuationNode = false; + } while (true); + if (state == FOUND_NONE) + break; + // search for next text node, if any + Text* nextNode; + do { + do { + do { + if (node) + node = node->traverseNextNode(); + if (node == NULL || node->hasTagName(HTMLNames::aTag) + || node->hasTagName(HTMLNames::inputTag) + || node->hasTagName(HTMLNames::textareaTag)) { + if (state == FOUND_PARTIAL && + checkType == ADDRESS_CACHEDNODETYPE && + findState.mProgress == ZIP_CODE && + findState.mNumberCount == 0) { + baseChars = NULL; + inlineTextBox = NULL; + start = 0; + findState.mProgress = FIND_STREET; + goto finalNode; + } + goto tryNextCheckType; + } + } while (node->isTextNode() == false); + nextNode = static_cast<Text*>(node); + renderer = (RenderText*) nextNode->renderer(); + } while (renderer == NULL); + baseInline = renderer->firstTextBox(); + } while (baseInline == NULL); + string = nextNode->dataImpl(); + baseChars = string->characters(); + inlineTextBox = baseInline; + start = inlineTextBox->start(); + finalNode: + findState.mEndResult = 0; + } while (true); +tryNextCheckType: + node = textNode; + baseInline = saveInline; + string = textNode->dataImpl(); + baseChars = string->characters(); + } + if (foundBetter) { + CachedNodeType temp = *type; + switch (temp) { + case ADDRESS_CACHEDNODETYPE: { + static const char geoString[] = "geo:0,0?q="; + exported->insert(String(geoString), 0); + int index = sizeof(geoString) - 1; + String escapedComma("%2C"); + while ((index = exported->find(',', index)) >= 0) + exported->replace(index, 1, escapedComma); + } break; + case EMAIL_CACHEDNODETYPE: { + String encoded = WebCore::encodeWithURLEscapeSequences(*exported); + exported->swap(encoded); + exported->insert(WTF::String("mailto:"), 0); + } break; + case PHONE_CACHEDNODETYPE: + exported->insert(WTF::String("tel:"), 0); + break; + default: + break; + } + return true; + } +noTextMatch: + walk->reset(); + return false; +} + +bool CacheBuilder::IsMailboxChar(UChar ch) +{ + // According to http://en.wikipedia.org/wiki/Email_address + // ! # $ % & ' * + - . / 0-9 = ? + // A-Z ^ _ + // ` a-z { | } ~ + static const unsigned body[] = {0xa3ffecfa, 0xc7fffffe, 0x7fffffff}; + ch -= 0x20; + if (ch > '~' - 0x20) + return false; + return (body[ch >> 5] & 1 << (ch & 0x1f)) != 0; +} + +bool CacheBuilder::setData(CachedFrame* cachedFrame) +{ + Frame* frame = FrameAnd(this); + Document* doc = frame->document(); + if (doc == NULL) + return false; + RenderObject* renderer = doc->renderer(); + if (renderer == NULL) + return false; + RenderLayer* layer = renderer->enclosingLayer(); + if (layer == NULL) + return false; + if (layer->width() == 0 || layer->height() == 0) + return false; + if (!frame->view()) + return false; + int x, y; + GetGlobalOffset(frame, &x, &y); + WebCore::IntRect viewBounds = frame->view()->platformWidget()->getBounds(); + if ((x | y) != 0) + viewBounds.setLocation(WebCore::IntPoint(x, y)); + cachedFrame->setLocalViewBounds(viewBounds); + cachedFrame->setContentsSize(layer->width(), layer->height()); + if (cachedFrame->childCount() == 0) + return true; + CachedFrame* lastCachedFrame = cachedFrame->lastChild(); + cachedFrame = cachedFrame->firstChild(); + do { + CacheBuilder* cacheBuilder = Builder((Frame* )cachedFrame->framePointer()); + cacheBuilder->setData(cachedFrame); + } while (cachedFrame++ != lastCachedFrame); + return true; +} + +#if USE(ACCELERATED_COMPOSITING) +void CacheBuilder::TrackLayer(WTF::Vector<LayerTracker>& layerTracker, + RenderObject* nodeRenderer, Node* lastChild, int offsetX, int offsetY) +{ + RenderLayer* layer = nodeRenderer->enclosingLayer(); + RenderLayerBacking* back = layer->backing(); + if (!back) + return; + GraphicsLayer* grLayer = back->graphicsLayer(); + if (back->hasContentsLayer()) + grLayer = back->foregroundLayer(); + if (!grLayer) + return; + LayerAndroid* aLayer = grLayer->platformLayer(); + if (!aLayer) + return; + IntPoint scroll(layer->scrollXOffset(), layer->scrollYOffset()); +#if ENABLE(ANDROID_OVERFLOW_SCROLL) + // If this is an overflow element, track the content layer. + if (layer->hasOverflowScroll() && aLayer->getChild(0)) + aLayer = aLayer->getChild(0)->getChild(0); + if (!aLayer) + return; + // Prevent a crash when scrolling a layer that does not have a parent. + if (layer->stackingContext()) + layer->scrollToOffset(0, 0, false, false); +#endif + layerTracker.grow(layerTracker.size() + 1); + LayerTracker& indexTracker = layerTracker.last(); + indexTracker.mLayer = aLayer; + indexTracker.mRenderLayer = layer; + indexTracker.mBounds = enclosingIntRect(aLayer->bounds()); + // Use the absolute location of the layer as the bounds location. This + // provides the original offset of nodes in the layer so that we can + // translate nodes between their original location and the layer's new + // location. + indexTracker.mBounds.setLocation(layer->absoluteBoundingBox().location()); + indexTracker.mBounds.move(offsetX, offsetY); + indexTracker.mScroll = scroll; + indexTracker.mLastChild = OneAfter(lastChild); + DBG_NAV_LOGD("layer=%p [%d] bounds=(%d,%d,w=%d,h=%d)", aLayer, + aLayer->uniqueId(), indexTracker.mBounds.x(), indexTracker.mBounds.y(), + indexTracker.mBounds.width(), indexTracker.mBounds.height()); +} +#endif + +bool CacheBuilder::validNode(Frame* startFrame, void* matchFrame, + void* matchNode) +{ + if (matchFrame == startFrame) { + if (matchNode == NULL) + return true; + Node* node = startFrame->document(); + while (node != NULL) { + if (node == matchNode) { + const IntRect& rect = node->hasTagName(HTMLNames::areaTag) ? + getAreaRect(static_cast<HTMLAreaElement*>(node)) : node->getRect(); + // Consider nodes with empty rects that are not at the origin + // to be valid, since news.google.com has valid nodes like this + if (rect.x() == 0 && rect.y() == 0 && rect.isEmpty()) + return false; + return true; + } + node = node->traverseNextNode(); + } + DBG_NAV_LOGD("frame=%p valid node=%p invalid\n", matchFrame, matchNode); + return false; + } + Frame* child = startFrame->tree()->firstChild(); + while (child) { + bool result = validNode(child, matchFrame, matchNode); + if (result) + return result; + child = child->tree()->nextSibling(); + } +#if DEBUG_NAV_UI + if (startFrame->tree()->parent() == NULL) + DBG_NAV_LOGD("frame=%p node=%p false\n", matchFrame, matchNode); +#endif + return false; +} + +static int Area(const IntRect& rect) +{ + return rect.width() * rect.height(); +} + +bool CacheBuilder::AddPartRect(IntRect& bounds, int x, int y, + WTF::Vector<IntRect>* result, IntRect* focusBounds) +{ + if (bounds.isEmpty()) + return true; + bounds.move(x, y); + if (bounds.right() <= 0 || bounds.bottom() <= 0) + return true; + IntRect* work = result->begin() - 1; + IntRect* end = result->end(); + while (++work < end) { + if (work->contains(bounds)) + return true; + if (bounds.contains(*work)) { + *work = bounds; + focusBounds->unite(bounds); + return true; + } + if ((bounds.x() != work->x() || bounds.width() != work->width()) && + (bounds.y() != work->y() || bounds.height() != work->height())) + continue; + IntRect test = *work; + test.unite(bounds); + if (Area(test) > Area(*work) + Area(bounds)) + continue; + *work = test; + focusBounds->unite(bounds); + return true; + } + if (result->size() >= MAXIMUM_FOCUS_RING_COUNT) + return false; + result->append(bounds); + if (focusBounds->isEmpty()) + *focusBounds = bounds; + else + focusBounds->unite(bounds); + return true; +} + +bool CacheBuilder::ConstructPartRects(Node* node, const IntRect& bounds, + IntRect* focusBounds, int x, int y, WTF::Vector<IntRect>* result, + int* imageCountPtr) +{ + WTF::Vector<ClipColumnTracker> clipTracker(1); + ClipColumnTracker* baseTracker = clipTracker.data(); // sentinel + bzero(baseTracker, sizeof(ClipColumnTracker)); + if (node->hasChildNodes() && node->hasTagName(HTMLNames::buttonTag) == false + && node->hasTagName(HTMLNames::selectTag) == false) { + // collect all text rects from first to last child + Node* test = node->firstChild(); + Node* last = NULL; + Node* prior = node; + while ((prior = prior->lastChild()) != NULL) + last = prior; + ASSERT(last != NULL); + bool nodeIsAnchor = node->hasTagName(HTMLNames::aTag); + do { + do { + const ClipColumnTracker* lastClip = &clipTracker.last(); + if (test != lastClip->mLastChild) + break; + clipTracker.removeLast(); + } while (true); + RenderObject* renderer = test->renderer(); + if (renderer == NULL) + continue; + EVisibility vis = renderer->style()->visibility(); + if (vis == HIDDEN) + continue; + bool hasClip = renderer->hasOverflowClip(); + size_t clipIndex = clipTracker.size(); + IntRect clipBounds = IntRect(0, 0, INT_MAX, INT_MAX); + if (hasClip || --clipIndex > 0) { + clipBounds = hasClip ? renderer->absoluteBoundingBoxRect() : + clipTracker.at(clipIndex).mBounds; // x, y fixup done by ConstructTextRect + } + if (test->isTextNode()) { + RenderText* renderText = (RenderText*) renderer; + InlineTextBox *textBox = renderText->firstTextBox(); + if (textBox == NULL) + continue; + if (ConstructTextRect((Text*) test, textBox, 0, INT_MAX, + x, y, focusBounds, clipBounds, result) == false) { + return false; + } + continue; + } + if (test->hasTagName(HTMLNames::imgTag)) { + IntRect bounds = test->getRect(); + bounds.intersect(clipBounds); + if (AddPartRect(bounds, x, y, result, focusBounds) == false) + return false; + *imageCountPtr += 1; + continue; + } + if (hasClip == false) { + if (nodeIsAnchor && test->hasTagName(HTMLNames::divTag)) { + IntRect bounds = renderer->absoluteBoundingBoxRect(); // x, y fixup done by AddPartRect + int left = bounds.x() + ((RenderBox*)renderer)->paddingLeft() + + ((RenderBox*)renderer)->borderLeft(); + int top = bounds.y() + ((RenderBox*)renderer)->paddingTop() + + ((RenderBox*)renderer)->borderTop(); + int right = bounds.right() - ((RenderBox*)renderer)->paddingRight() + - ((RenderBox*)renderer)->borderRight(); + int bottom = bounds.bottom() - ((RenderBox*)renderer)->paddingBottom() + - ((RenderBox*)renderer)->borderBottom(); + if (left >= right || top >= bottom) + continue; + bounds = IntRect(left, top, right - left, bottom - top); + if (AddPartRect(bounds, x, y, result, focusBounds) == false) + return false; + } + continue; + } + Node* lastChild = test->lastChild(); + if (lastChild == NULL) + continue; + clipTracker.grow(clipTracker.size() + 1); + ClipColumnTracker& clip = clipTracker.last(); + clip.mBounds = renderer->absoluteBoundingBoxRect(); // x, y fixup done by ConstructTextRect + clip.mLastChild = OneAfter(lastChild); + clip.mNode = test; + } while (test != last && (test = test->traverseNextNode()) != NULL); + } + if (result->size() == 0 || focusBounds->width() < MINIMUM_FOCUSABLE_WIDTH + || focusBounds->height() < MINIMUM_FOCUSABLE_HEIGHT) { + if (bounds.width() < MINIMUM_FOCUSABLE_WIDTH) + return false; + if (bounds.height() < MINIMUM_FOCUSABLE_HEIGHT) + return false; + result->append(bounds); + *focusBounds = bounds; + } + return true; +} + +static inline bool isNotSpace(UChar c) +{ + return c <= 0xA0 ? isUnicodeSpace(c) == false : + WTF::Unicode::direction(c) != WTF::Unicode::WhiteSpaceNeutral; +} + +bool CacheBuilder::ConstructTextRect(Text* textNode, + InlineTextBox* textBox, int start, int relEnd, int x, int y, + IntRect* focusBounds, const IntRect& clipBounds, WTF::Vector<IntRect>* result) +{ + RenderText* renderText = (RenderText*) textNode->renderer(); + EVisibility vis = renderText->style()->visibility(); + StringImpl* string = textNode->dataImpl(); + const UChar* chars = string->characters(); + FloatPoint pt = renderText->localToAbsolute(); + do { + int textBoxStart = textBox->start(); + int textBoxEnd = textBoxStart + textBox->len(); + if (textBoxEnd <= start) + continue; + if (textBoxEnd > relEnd) + textBoxEnd = relEnd; + IntRect bounds = textBox->selectionRect((int) pt.x(), (int) pt.y(), + start, textBoxEnd); + bounds.intersect(clipBounds); + if (bounds.isEmpty()) + continue; + bool drawable = false; + for (int index = start; index < textBoxEnd; index++) + if ((drawable |= isNotSpace(chars[index])) != false) + break; + if (drawable && vis != HIDDEN) { + if (AddPartRect(bounds, x, y, result, focusBounds) == false) + return false; + } + if (textBoxEnd == relEnd) + break; + } while ((textBox = textBox->nextTextBox()) != NULL); + return true; +} + +bool CacheBuilder::ConstructTextRects(Text* node, int start, + Text* last, int end, int x, int y, IntRect* focusBounds, + const IntRect& clipBounds, WTF::Vector<IntRect>* result) +{ + result->clear(); + *focusBounds = IntRect(0, 0, 0, 0); + do { + RenderText* renderText = (RenderText*) node->renderer(); + int relEnd = node == last ? end : renderText->textLength(); + InlineTextBox *textBox = renderText->firstTextBox(); + if (textBox != NULL) { + do { + if ((int) textBox->end() >= start) + break; + } while ((textBox = textBox->nextTextBox()) != NULL); + if (textBox && ConstructTextRect(node, textBox, start, relEnd, + x, y, focusBounds, clipBounds, result) == false) + return false; + } + start = 0; + do { + if (node == last) + return true; + node = (Text*) node->traverseNextNode(); + ASSERT(node != NULL); + } while (node->isTextNode() == false || node->renderer() == NULL); + } while (true); +} + +} diff --git a/Source/WebKit/android/nav/CacheBuilder.h b/Source/WebKit/android/nav/CacheBuilder.h new file mode 100644 index 0000000..d48a045 --- /dev/null +++ b/Source/WebKit/android/nav/CacheBuilder.h @@ -0,0 +1,297 @@ +/* + * Copyright 2006, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CacheBuilder_H +#define CacheBuilder_H + +#include "CachedDebug.h" +#include "CachedNodeType.h" +#include "IntRect.h" +#include "PlatformString.h" +#include "TextDirection.h" +#include <wtf/Forward.h> +#include <wtf/Vector.h> + +#define NAVIGATION_MAX_PHONE_LENGTH 14 + +using namespace WebCore; + +namespace WebCore { + +class ColumnInfo; +class Document; +class Frame; +class HTMLAreaElement; +class InlineTextBox; +class LayerAndroid; +class Node; +class PlatformGraphicsContext; +class RenderBlock; +class RenderFlow; +class RenderLayer; +class RenderObject; +class Text; + +} + +namespace android { + +class CachedFrame; +class CachedNode; +class CachedRoot; + +class CacheBuilder { +public: + enum Direction { + UNINITIALIZED = -1, + LEFT, + RIGHT, + UP, + DOWN, + DIRECTION_COUNT, + UP_DOWN = UP & DOWN, // mask and result + RIGHT_DOWN = RIGHT & DOWN, // mask and result + }; + enum FoundState { + FOUND_NONE, + FOUND_PARTIAL, + FOUND_COMPLETE + }; + CacheBuilder(); + void allowAllTextDetection() { mAllowableTypes = ALL_CACHEDNODE_BITS; } + void buildCache(CachedRoot* root); + static bool ConstructPartRects(Node* node, const IntRect& bounds, + IntRect* focusBounds, int x, int y, WTF::Vector<IntRect>* result, + int* imageCountPtr); + Node* currentFocus() const; + void disallowAddressDetection() { mAllowableTypes = (CachedNodeBits) ( + mAllowableTypes & ~ADDRESS_CACHEDNODE_BIT); } + void disallowEmailDetection() { mAllowableTypes = (CachedNodeBits) ( + mAllowableTypes & ~EMAIL_CACHEDNODE_BIT); } + void disallowPhoneDetection() { mAllowableTypes = (CachedNodeBits) ( + mAllowableTypes & ~PHONE_CACHEDNODE_BIT); } + static FoundState FindAddress(const UChar* , unsigned length, int* start, + int* end, bool caseInsensitive); + static IntRect getAreaRect(const HTMLAreaElement* area); + static void GetGlobalOffset(Frame* , int* x, int * y); + static void GetGlobalOffset(Node* , int* x, int * y); + bool pictureSetDisabled() { return mPictureSetDisabled; } + static bool validNode(Frame* startFrame, void* framePtr, void* nodePtr); +private: + enum AddressProgress { + NO_ADDRESS, + SKIP_TO_SPACE, + HOUSE_NUMBER, + NUMBER_TRAILING_SPACE, + ADDRESS_LINE, + STATE_NAME, + SECOND_HALF, + ZIP_CODE, + PLUS_4, + FIND_STREET + }; + struct NodeWalk { + NodeWalk() { reset(); } + int mStart; + int mEnd; + Node* mFinalNode; + InlineTextBox* mLastInline; + bool mMore; + void reset() { mMore = false; } + }; + struct BoundsPart { + IntRect mRect; + int mStart; + int mEnd; + }; + struct Bounds { + typedef bool (*FindText)(BoundsPart* result, InlineTextBox* , const String& match); + IntRect mNodeBounds; + BoundsPart mPart; + WTF::Vector<BoundsPart> mParts; + char mStore[NAVIGATION_MAX_PHONE_LENGTH + 1]; + int mPartIndex; + Node* mNode; + Node* mFinalNode; + void reset() { mNode = NULL; } + }; + struct FindState { + int mStartResult; + int mEndResult; + const UChar* mCurrentStart; + const UChar* mEnd; + AddressProgress mProgress; + int mNumberCount; + int mLetterCount; + unsigned mWordCount; + int mLineCount; + const UChar* mFirstLower; + const UChar* mZipStart; + const UChar* mBases[16]; // FIXME: random guess, maybe too small, maybe too big + const UChar* mWords[16]; + const UChar* mEnds[16]; + const UChar* mStarts[16]; // text is not necessarily contiguous + const char* mStates; + int mEndWord; + int mStateWord; + int mZipHint; + int mSectionLength; + unsigned mNumberWords; // must contain as many bits as mWords contains elements + char* mPattern; + UChar mStore[NAVIGATION_MAX_PHONE_LENGTH + 1]; + UChar* mStorePtr; + UChar mBackOne; + UChar mBackTwo; + UChar mCurrent; + bool mUnparsed; + bool mZipDelimiter; + bool mOpenParen; + bool mInitialized; + bool mContinuationNode; + bool mCaseInsensitive; + void shiftWords(int shift) { + memmove(mBases, &mBases[shift], (sizeof(mBases) / + sizeof(mBases[0]) - shift) * sizeof(mBases[0])); + memmove(mWords, &mWords[shift], (sizeof(mWords) / + sizeof(mWords[0]) - shift) * sizeof(mWords[0])); + memmove(mEnds, &mEnds[shift], (sizeof(mEnds) / + sizeof(mEnds[0]) - shift) * sizeof(mEnds[0])); + memmove(mStarts, &mStarts[shift], (sizeof(mStarts) / + sizeof(mStarts[0]) - shift) * sizeof(mStarts[0])); + } + void newWord(const UChar* baseChars, const UChar* chars) { + mBases[mWordCount] = baseChars; + mWords[mWordCount] = chars; + mEnds[mWordCount] = mEnd; + mStarts[mWordCount] = mCurrentStart; + } + }; + struct Tracker { + Node* mLastChild; + }; + struct ClipColumnTracker : Tracker { + Node* mNode; + IntRect mBounds; + ColumnInfo* mColumnInfo; + int mColumnGap; + TextDirection mDirection; + bool mHasClip; + }; + struct LayerTracker : Tracker { + LayerAndroid* mLayer; + RenderLayer* mRenderLayer; + IntRect mBounds; + IntPoint mScroll; + ~LayerTracker(); + }; + struct TabIndexTracker : Tracker { + int mTabIndex; + }; + struct FocusTracker : TabIndexTracker { + int mCachedNodeIndex; + bool mSomeParentTakesFocus; + }; + void adjustForColumns(const ClipColumnTracker& track, + CachedNode* node, IntRect* bounds, RenderBlock*); + static bool AddPartRect(IntRect& bounds, int x, int y, + WTF::Vector<IntRect>* result, IntRect* focusBounds); + static bool AnyIsClick(Node* node); + static bool AnyChildIsClick(Node* node); + static bool NodeHasEventListeners(Node* node, AtomicString* eventTypes, int length); + void BuildFrame(Frame* root, Frame* frame, + CachedRoot* cachedRoot, CachedFrame* cachedFrame); + bool CleanUpContainedNodes(CachedRoot* cachedRoot, CachedFrame* cachedFrame, + const FocusTracker* last, int lastChildIndex); + static bool ConstructTextRect(Text* textNode, + InlineTextBox* textBox, int start, int relEnd, int x, int y, + IntRect* focusBounds, const IntRect& clip, WTF::Vector<IntRect>* result); + static bool ConstructTextRects(Text* node, int start, + Text* last, int end, int x, int y, IntRect* focusBounds, + const IntRect& clip, WTF::Vector<IntRect>* result); + static FoundState FindPartialAddress(const UChar* , const UChar* , unsigned length, FindState* ); + static FoundState FindPartialEMail(const UChar* , unsigned length, FindState* ); + static FoundState FindPartialNumber(const UChar* , unsigned length, FindState* ); + static FoundState FindPhoneNumber(const UChar* chars, unsigned length, int* start, int* end); + static void FindReset(FindState* ); + static void FindResetNumber(FindState* ); + static Frame* FrameAnd(CacheBuilder* focusNav); + static Frame* FrameAnd(const CacheBuilder* focusNav); + static CacheBuilder* Builder(Frame* ); + static Frame* HasFrame(Node* ); + static bool HasOverOrOut(Node* ); + static bool HasTriggerEvent(Node* ); + static bool IsDomainChar(UChar ch); + bool isFocusableText(NodeWalk* , bool oldMore, Node* , CachedNodeType* type, + String* exported) const; //returns true if it is focusable + static bool IsMailboxChar(UChar ch); + static bool IsRealNode(Frame* , Node* ); + int overlap(int left, int right); // returns distance scale factor as 16.16 scalar + bool setData(CachedFrame* ); +#if USE(ACCELERATED_COMPOSITING) + void TrackLayer(WTF::Vector<LayerTracker>& layerTracker, + RenderObject* nodeRenderer, Node* lastChild, int offsetX, int offsetY); +#endif + Node* tryFocus(Direction direction); + Node* trySegment(Direction direction, int mainStart, int mainEnd); + CachedNodeBits mAllowableTypes; + bool mPictureSetDisabled; +#if DUMP_NAV_CACHE +public: + class Debug { +public: + void frameName(char*& namePtr, const char* max) const; + void init(char* buffer, size_t size); + static int ParentIndex(Node* node, int count, Node* parent); + void print() { frames(); } + void print(const char* name); + void wideString(const String& str); +private: + void attr(const AtomicString& name, const AtomicString& value); + void comma(const char* str); + void flush(); + Frame* frameAnd() const; + void frames(); + void groups(); + bool isFocusable(Node* node); + void localName(Node* node); + void newLine(int indent = 0); + void print(const char* name, unsigned len); + void setIndent(int ); + void uChar(const UChar* name, unsigned len, bool hex); + void validateFrame(); + void validateStringData(); + void wideString(const UChar* chars, int length, bool hex); + char* mBuffer; + size_t mBufferSize; + int mIndex; + const char* mPrefix; + int mMinPrefix; + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedColor.cpp b/Source/WebKit/android/nav/CachedColor.cpp new file mode 100644 index 0000000..c610022 --- /dev/null +++ b/Source/WebKit/android/nav/CachedColor.cpp @@ -0,0 +1,58 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "CachedColor.h" + +namespace android { + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_COLOR(field) \ + DUMP_NAV_LOGD("// SkColor " #field "=0x%08x;\n", b->field) + +CachedColor* CachedColor::Debug::base() const { + CachedColor* nav = (CachedColor*) ((char*) this - OFFSETOF(CachedColor, mDebug)); + return nav; +} + +void CachedColor::Debug::print() const +{ + CachedColor* b = base(); + DEBUG_PRINT_COLOR(mFillColor); + DUMP_NAV_LOGD("// int mInnerWidth=%d;\n", b->mInnerWidth); + DUMP_NAV_LOGD("// int mOuterWidth=%d;\n", b->mOuterWidth); + DUMP_NAV_LOGD("// int mOutset=%d;\n", b->mOutset); + DEBUG_PRINT_COLOR(mPressedInnerColor); + DEBUG_PRINT_COLOR(mPressedOuterColor); + DUMP_NAV_LOGD("// int mRadius=%d;\n", b->mRadius); + DEBUG_PRINT_COLOR(mSelectedInnerColor); + DEBUG_PRINT_COLOR(mSelectedOuterColor); +} + +#endif + +} + diff --git a/Source/WebKit/android/nav/CachedColor.h b/Source/WebKit/android/nav/CachedColor.h new file mode 100644 index 0000000..4b39810 --- /dev/null +++ b/Source/WebKit/android/nav/CachedColor.h @@ -0,0 +1,87 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedColor_H +#define CachedColor_H + +#include "CachedDebug.h" +#include "Color.h" +#include "Length.h" +#include "SkColor.h" + +using namespace WebCore; + +namespace android { + +class CachedColor { +public: + CachedColor() { + // Initiaized to 0 in its array, so nothing to do in the + // constructor + } + bool operator==(const CachedColor& o) const { + return memcmp(&o, this, sizeof(this)) == 0; } + SkColor fillColor() const { return mFillColor; } + void init(); + int innerWidth() const { return mInnerWidth; } + int outerWidth() const { return mOuterWidth; } + int outset() const { return mOutset; } + SkColor pressedInnerColor() const { return mPressedInnerColor; } + SkColor pressedOuterColor() const { return mPressedOuterColor; } + int radius() const { return mRadius; } + SkColor selectedInnerColor() const { return mSelectedInnerColor; } + SkColor selectedOuterColor() const { return mSelectedOuterColor; } + void setFillColor(const Color& c) { mFillColor = c.rgb(); } + void setInnerWidth(Length l) { mInnerWidth = l.value(); } + void setOuterWidth(Length l) { mOuterWidth = l.value(); } + void setOutset(Length l) { mOutset = l.value(); } + void setPressedInnerColor(const Color& c) { mPressedInnerColor = c.rgb(); } + void setPressedOuterColor(const Color& c) { mPressedOuterColor = c.rgb(); } + void setRadius(Length l) { mRadius = l.value(); } + void setSelectedInnerColor(const Color& c) { mSelectedInnerColor = c.rgb(); } + void setSelectedOuterColor(const Color& c) { mSelectedOuterColor = c.rgb(); } +private: + SkColor mFillColor; + int mInnerWidth; + int mOuterWidth; + int mOutset; + SkColor mPressedInnerColor; + SkColor mPressedOuterColor; + int mRadius; + SkColor mSelectedInnerColor; + SkColor mSelectedOuterColor; +#if DUMP_NAV_CACHE +public: + class Debug { +public: + CachedColor* base() const; + void print() const; + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedDebug.h b/Source/WebKit/android/nav/CachedDebug.h new file mode 100644 index 0000000..3d9e012 --- /dev/null +++ b/Source/WebKit/android/nav/CachedDebug.h @@ -0,0 +1,72 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedDebug_H +#define CachedDebug_H + +#define DUMP_NAV_CACHE 0 +#define DEBUG_NAV_UI 0 +#define DEBUG_NAV_UI_VERBOSE 0 + +#if DEBUG_NAV_UI +#define DBG_NAV_LOG(message) LOGD("%s %s", __FUNCTION__, message) +#define DBG_NAV_LOGD(format, ...) LOGD("%s " format, __FUNCTION__, __VA_ARGS__) +#define DEBUG_NAV_UI_LOGD(...) LOGD(__VA_ARGS__) +#else +#define DBG_NAV_LOG(message) ((void)0) +#define DBG_NAV_LOGD(format, ...) ((void)0) +#define DEBUG_NAV_UI_LOGD(...) ((void)0) +#endif + +#if DEBUG_NAV_UI_VERBOSE +#define DBG_NAV_LOGV(format, ...) LOGD("%s " format, __FUNCTION__, __VA_ARGS__) +#else +#define DBG_NAV_LOGV(format, ...) ((void)0) +#endif + +#if DUMP_NAV_CACHE != 0 && !defined DUMP_NAV_CACHE_USING_PRINTF && defined NDEBUG +#define DUMP_NAV_CACHE_USING_PRINTF +#endif + +#if DUMP_NAV_CACHE +#ifdef DUMP_NAV_CACHE_USING_PRINTF +#include <stdio.h> +extern FILE* gNavCacheLogFile; +#define NAV_CACHE_LOG_FILE "/data/data/com.android.browser/navlog" +#define DUMP_NAV_LOGD(...) do { if (gNavCacheLogFile) \ + fprintf(gNavCacheLogFile, __VA_ARGS__); else LOGD(__VA_ARGS__); } while (false) +#define DUMP_NAV_LOGX(format, ...) do { if (gNavCacheLogFile) \ + fprintf(gNavCacheLogFile, format, __VA_ARGS__); \ + else LOGD("%s " format, __FUNCTION__, __VA_ARGS__); } while (false) +#else +#define DUMP_NAV_LOGD(...) LOGD(__VA_ARGS__) +#define DUMP_NAV_LOGX(format, ...) LOGD("%s " format, __FUNCTION__, __VA_ARGS__) +#endif +#else +#define DUMP_NAV_LOGD(...) ((void)0) +#define DUMP_NAV_LOGX(...) ((void)0) +#endif + +#endif diff --git a/Source/WebKit/android/nav/CachedFrame.cpp b/Source/WebKit/android/nav/CachedFrame.cpp new file mode 100644 index 0000000..b26e24b --- /dev/null +++ b/Source/WebKit/android/nav/CachedFrame.cpp @@ -0,0 +1,1494 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "CachedHistory.h" +#include "CachedNode.h" +#include "CachedRoot.h" +#include "LayerAndroid.h" + +#include "CachedFrame.h" + +#define OFFSETOF(type, field) ((char*)&(((type*)1)->field) - (char*)1) // avoids gnu warning + +#define MIN_OVERLAP 3 // if rects overlap by 2 pixels or fewer, treat them as non-intersecting + +namespace android { + +WebCore::IntRect CachedFrame::adjustBounds(const CachedNode* node, + const WebCore::IntRect& rect) const +{ + DBG_NAV_LOGV("node=%p [%d] rect=(%d,%d,w=%d,h=%d) view=(%d,%d,w=%d,h=%d)" + " local=(%d,%d,w=%d,h=%d) root=(%d,%d,w=%d,h=%d)", + node, node->index(), rect.x(), rect.y(), rect.width(), rect.height(), + mViewBounds.x(), mViewBounds.y(), + mViewBounds.width(), mViewBounds.height(), + mLocalViewBounds.x(), mLocalViewBounds.y(), + mLocalViewBounds.width(), mLocalViewBounds.height(), + mRoot->mViewBounds.x(), mRoot->mViewBounds.y(), + mRoot->mViewBounds.width(), mRoot->mViewBounds.height()); +#if USE(ACCELERATED_COMPOSITING) + if (!mRoot) + return rect; + + const CachedLayer* cachedLayer = layer(node); + if (!cachedLayer) + return rect; + + const WebCore::LayerAndroid* rootLayer = mRoot->rootLayer(); + const LayerAndroid* aLayer = cachedLayer->layer(rootLayer); + if (aLayer) + return cachedLayer->adjustBounds(rootLayer, rect); +#endif + return rect; +} + +bool CachedFrame::CheckBetween(Direction direction, const WebCore::IntRect& bestRect, + const WebCore::IntRect& prior, WebCore::IntRect* result) +{ + int left, top, width, height; + if (direction & UP_DOWN) { + top = direction == UP ? bestRect.bottom() : prior.bottom(); + int bottom = direction == UP ? prior.y() : bestRect.y(); + height = bottom - top; + if (height < 0) + return false; + left = prior.x(); + int testLeft = bestRect.x(); + if (left > testLeft) + left = testLeft; + int right = prior.right(); + int testRight = bestRect.right(); + if (right < testRight) + right = testRight; + width = right - left; + } else { + left = direction == LEFT ? bestRect.right() : prior.right(); + int right = direction == LEFT ? prior.x() : bestRect.x(); + width = right - left; + if (width < 0) + return false; + top = prior.y(); + int testTop = bestRect.y(); + if (top > testTop) + top = testTop; + int bottom = prior.bottom(); + int testBottom = bestRect.bottom(); + if (bottom < testBottom) + bottom = testBottom; + height = bottom - top; + } + *result = WebCore::IntRect(left, top, width, height); + return true; +} + +bool CachedFrame::checkBetween(BestData* best, Direction direction) +{ + const WebCore::IntRect& bestRect = best->bounds(); + BestData test; + test.mDistance = INT_MAX; + test.mNode = NULL; + int index = direction; + int limit = index + DIRECTION_COUNT; + do { + WebCore::IntRect edges; + Direction check = (Direction) (index & DIRECTION_MASK); + if (CheckBetween(check, bestRect, + history()->priorBounds(), &edges) == false) + continue; + WebCore::IntRect clip = mRoot->scrolledBounds(); + clip.intersect(edges); + if (clip.isEmpty()) + continue; + findClosest(&test, direction, check, &clip); + if (test.mNode == NULL) + continue; + if (direction == check) + break; + } while (++index < limit); + if (test.mNode == NULL) + return false; + *best = test; + return true; +} + +bool CachedFrame::checkRings(const CachedNode* node, + const WebCore::IntRect& testBounds) const +{ + return mRoot->checkRings(picture(node), node, testBounds); +} + +bool CachedFrame::checkVisited(const CachedNode* node, Direction direction) const +{ + return history()->checkVisited(node, direction); +} + +void CachedFrame::clearCursor() +{ + DBG_NAV_LOGD("mCursorIndex=%d", mCursorIndex); + if (mCursorIndex < CURSOR_SET) + return; + CachedNode& cursor = mCachedNodes[mCursorIndex]; + cursor.clearCursor(this); + mCursorIndex = CURSOR_CLEARED; // initialized and explicitly cleared +} + +// returns 0 if test is preferable to best, 1 if not preferable, or -1 if unknown +int CachedFrame::compare(BestData& testData, const BestData& bestData) const +{ + if (testData.mNode->tabIndex() != bestData.mNode->tabIndex()) { + if (testData.mNode->tabIndex() < bestData.mNode->tabIndex() + || (mRoot->mCursor && mRoot->mCursor->tabIndex() < bestData.mNode->tabIndex())) { + testData.mNode->setCondition(CachedNode::HIGHER_TAB_INDEX); + return REJECT_TEST; + } + return TEST_IS_BEST; + } + // if the test minor axis line intersects the line segment between cursor + // center and best center, choose it + // give more weight to exact major axis alignment (rows, columns) + if (testData.mInNav != bestData.mInNav) { + if (bestData.mInNav) { + testData.mNode->setCondition(CachedNode::IN_CURSOR); + return REJECT_TEST; + } + return TEST_IS_BEST; + } + if (testData.mInNav) { + if (bestData.mMajorDelta < testData.mMajorDelta) { + testData.mNode->setCondition(CachedNode::CLOSER_IN_CURSOR); + return REJECT_TEST; + } + if (testData.mMajorDelta < bestData.mMajorDelta) + return TEST_IS_BEST; + } + if (testData.mMajorDelta < 0 && bestData.mMajorDelta >= 0) { + testData.mNode->setCondition(CachedNode::FURTHER); + return REJECT_TEST; + } + if ((testData.mMajorDelta ^ bestData.mMajorDelta) < 0) // one above, one below (or one left, one right) + return TEST_IS_BEST; + bool bestInWorking = bestData.inOrSubsumesWorking(); + bool testInWorking = testData.inOrSubsumesWorking(); + if (bestInWorking && testData.mWorkingOutside && testData.mNavOutside) { + testData.mNode->setCondition(CachedNode::IN_WORKING); + return REJECT_TEST; + } + if (testInWorking && bestData.mWorkingOutside && bestData.mNavOutside) + return TEST_IS_BEST; + bool bestInNav = directionChange() && bestData.inOrSubsumesNav(); + bool testInNav = directionChange() && testData.inOrSubsumesNav(); + if (bestInWorking == false && testInWorking == false) { + if (bestInNav && testData.mNavOutside) { + testData.mNode->setCondition(CachedNode::IN_UMBRA); + return REJECT_TEST; + } + if (testInNav && bestData.mNavOutside) + return TEST_IS_BEST; + } +#if 01 // hopefully butt test will remove need for this + if (testData.mCursorChild != bestData.mCursorChild) { + if (bestData.mCursorChild) { + testData.mNode->setCondition(CachedNode::IN_CURSOR_CHILDREN); + return REJECT_TEST; + } + return TEST_IS_BEST; + } +#endif + bool bestTestIn = (bestInWorking || bestInNav) && (testInWorking || testInNav); + bool testOverlap = bestTestIn || (testData.mWorkingOverlap != 0 && bestData.mWorkingOverlap == 0); + bool bestOverlap = bestTestIn || (testData.mWorkingOverlap == 0 && bestData.mWorkingOverlap != 0); +#if 01 // this isn't working? + if (testOverlap == bestOverlap) { + if (bestData.mMajorButt < 10 && testData.mMajorButt >= 40) { + testData.mNode->setCondition(CachedNode::BUTTED_UP); + return REJECT_TEST; + } + if (testData.mMajorButt < 10 && bestData.mMajorButt >= 40) + return TEST_IS_BEST; + } +#endif + if (bestOverlap && bestData.mMajorDelta < testData.mMajorDelta) { // choose closest major axis center + testData.mNode->setCondition(CachedNode::CLOSER); + return REJECT_TEST; + } + if (testOverlap && testData.mMajorDelta < bestData.mMajorDelta) + return TEST_IS_BEST; + if (bestOverlap && bestData.mMajorDelta2 < testData.mMajorDelta2) { + testData.mNode->setCondition(CachedNode::CLOSER_TOP); + return REJECT_TEST; + } + if (testOverlap && testData.mMajorDelta2 < bestData.mMajorDelta2) + return TEST_IS_BEST; +#if 01 + if (bestOverlap && ((bestData.mSideDistance <= 0 && testData.mSideDistance > 0) || + abs(bestData.mSideDistance) < abs(testData.mSideDistance))) { + testData.mNode->setCondition(CachedNode::LEFTMOST); + return REJECT_TEST; + } + if (testOverlap && ((testData.mSideDistance <= 0 && bestData.mSideDistance > 0) || + abs(testData.mSideDistance) < abs(bestData.mSideDistance))) + return TEST_IS_BEST; +// fix me : the following ASSERT fires -- not sure if this case should be handled or not +// ASSERT(bestOverlap == false && testOverlap == false); +#endif + SkFixed testMultiplier = testData.mWorkingOverlap > testData.mNavOverlap ? + testData.mWorkingOverlap : testData.mNavOverlap; + SkFixed bestMultiplier = bestData.mWorkingOverlap > bestData.mNavOverlap ? + bestData.mWorkingOverlap : bestData.mNavOverlap; + int testDistance = testData.mDistance; + int bestDistance = bestData.mDistance; +// start here; + // this fails if they're off by 1 + // try once again to implement sliding scale so that off by 1 is nearly like zero, + // and off by a lot causes sideDistance to have little or no effect + // try elliptical distance -- lengthen side contribution + // these ASSERTs should not fire, but do fire on mail.google.com + // can't debug yet, won't reproduce + ASSERT(testDistance >= 0); + ASSERT(bestDistance >= 0); + testDistance += testDistance; // multiply by 2 + testDistance *= testDistance; + bestDistance += bestDistance; // multiply by 2 + bestDistance *= bestDistance; + int side = testData.mSideDistance; + int negative = side < 0 && bestData.mSideDistance > 0; + side *= side; + if (negative) + side = -side; + testDistance += side; + side = bestData.mSideDistance; + negative = side < 0 && testData.mSideDistance > 0; + side *= side; + if (negative) + side = -side; + bestDistance += side; + if (testMultiplier > (SK_Fixed1 >> 1) || bestMultiplier > (SK_Fixed1 >> 1)) { // considerable working overlap? + testDistance = SkFixedMul(testDistance, bestMultiplier); + bestDistance = SkFixedMul(bestDistance, testMultiplier); + } + if (bestDistance < testDistance) { + testData.mNode->setCondition(CachedNode::CLOSER_OVERLAP); + return REJECT_TEST; + } + if (testDistance < bestDistance) + return TEST_IS_BEST; +#if 0 + int distance = testData.mDistance + testData.mSideDistance; + int best = bestData.mDistance + bestData.mSideDistance; + if (distance > best) { + testData.mNode->setCondition(CachedNode::CLOSER_RAW_DISTANCE); + return REJECT_TEST; + } + else if (distance < best) + return TEST_IS_BEST; + best = bestData.mSideDistance; + if (testData.mSideDistance > best) { + testData.mNode->setCondition(CachedNode::SIDE_DISTANCE); + return REJECT_TEST; + } + if (testData.mSideDistance < best) + return TEST_IS_BEST; +#endif + if (testData.mPreferred < bestData.mPreferred) { + testData.mNode->setCondition(CachedNode::PREFERRED); + return REJECT_TEST; + } + if (testData.mPreferred > bestData.mPreferred) + return TEST_IS_BEST; + return UNDECIDED; +} + +const CachedNode* CachedFrame::currentCursor(const CachedFrame** framePtr) const +{ + if (framePtr) + *framePtr = this; + if (mCursorIndex < CURSOR_SET) + return NULL; + const CachedNode* result = &mCachedNodes[mCursorIndex]; + const CachedFrame* frame = hasFrame(result); + if (frame != NULL) + return frame->currentCursor(framePtr); + (const_cast<CachedNode*>(result))->fixUpCursorRects(this); + return result; +} + +const CachedNode* CachedFrame::currentFocus(const CachedFrame** framePtr) const +{ + if (framePtr) + *framePtr = this; + if (mFocusIndex < 0) + return NULL; + const CachedNode* result = &mCachedNodes[mFocusIndex]; + const CachedFrame* frame = hasFrame(result); + if (frame != NULL) + return frame->currentFocus(framePtr); + return result; +} + +bool CachedFrame::directionChange() const +{ + return history()->directionChange(); +} + +#ifdef BROWSER_DEBUG +CachedNode* CachedFrame::find(WebCore::Node* node) // !!! probably debugging only +{ + for (CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++) + if (node == test->webCoreNode()) + return test; + for (CachedFrame* frame = mCachedFrames.begin(); frame != mCachedFrames.end(); + frame++) { + CachedNode* result = frame->find(node); + if (result != NULL) + return result; + } + return NULL; +} +#endif + +const CachedNode* CachedFrame::findBestAt(const WebCore::IntRect& rect, + int* best, bool* inside, const CachedNode** directHit, + const CachedFrame** directHitFramePtr, + const CachedFrame** framePtr, int* x, int* y, + bool checkForHiddenStart) const +{ + const CachedNode* result = NULL; + int rectWidth = rect.width(); + WebCore::IntPoint center = WebCore::IntPoint(rect.x() + (rectWidth >> 1), + rect.y() + (rect.height() >> 1)); + mRoot->setupScrolledBounds(); + for (const CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++) { + if (test->disabled()) + continue; + size_t parts = test->navableRects(); + BestData testData; + testData.mNode = test; + testData.mFrame = this; + WebCore::IntRect bounds = test->bounds(this); + testData.setMouseBounds(bounds); + testData.setNodeBounds(bounds); + bool checkForHidden = checkForHiddenStart; + for (size_t part = 0; part < parts; part++) { + WebCore::IntRect testRect = test->ring(this, part); + if (testRect.intersects(rect)) { +#if DEBUG_NAV_UI + if (test->isInLayer()) { + DBG_NAV_LOGD("[%d] intersects=%s testRect=(%d,%d,w=%d,h=%d)" + " rect=(%d,%d,w=%d,h=%d)", test->index(), + testRect.intersects(rect) ? "true" : "false", + testRect.x(), testRect.y(), + testRect.width(), testRect.height(), + rect.x(), rect.y(), rect.width(), rect.height()); + } +#endif + if (checkForHidden && mRoot->maskIfHidden(&testData) == true) { + DBG_NAV_LOGD("hidden [%d]", test->index()); + break; + } + checkForHidden = false; + testRect.intersect(testData.mouseBounds()); + if (testRect.contains(center)) { + // We have a direct hit. + if (*directHit == NULL) { + DBG_NAV_LOGD("direct hit 1 [%d]", test->index()); + *directHit = test; + *directHitFramePtr = this; + IntRect r(center, IntSize(0, 0)); + *x = r.x(); + *y = r.y(); + } else { + DBG_NAV_LOGD("direct hit 2 [%d]", test->index()); + // We have hit another one before + const CachedNode* d = *directHit; + if (d->bounds(this).contains(testRect)) { + // This rectangle is inside the other one, so it is + // the best one. + *directHit = test; + *directHitFramePtr = this; + } + } + } + if (NULL != *directHit) { + // If we have a direct hit already, there is no need to + // calculate the distances, or check the other parts + break; + } + DBG_NAV_LOGD("indirect hit [%d]", test->index()); + WebCore::IntRect both = rect; + int smaller = testRect.width() < testRect.height() ? + testRect.width() : testRect.height(); + smaller -= rectWidth; + int inset = smaller < rectWidth ? smaller : rectWidth; + inset >>= 1; // inflate doubles the width decrease + if (inset > 1) + both.inflate(1 - inset); + both.intersect(testRect); + if (both.isEmpty()) + continue; + bool testInside = testRect.contains(center); + if (*inside && !testInside) + continue; + WebCore::IntPoint testCenter = WebCore::IntPoint(testRect.x() + + (testRect.width() >> 1), testRect.y() + (testRect.height() >> 1)); + int dx = testCenter.x() - center.x(); + int dy = testCenter.y() - center.y(); + int distance = dx * dx + dy * dy; + if ((!*inside && testInside) || *best >= distance) { + *best = distance; + *inside = testInside; + result = test; + *framePtr = this; + *x = both.x() + (both.width() >> 1); + *y = both.y() + (both.height() >> 1); + } + } + } + } + for (const CachedFrame* frame = mCachedFrames.begin(); + frame != mCachedFrames.end(); frame++) { + const CachedNode* frameResult = frame->findBestAt(rect, best, inside, + directHit, directHitFramePtr, framePtr, x, y, checkForHiddenStart); + if (NULL != frameResult) + result = frameResult; + } + if (NULL != *directHit) { + result = *directHit; + *framePtr = *directHitFramePtr; + } + return result; +} + +const CachedFrame* CachedFrame::findBestFrameAt(int x, int y) const +{ + if (mLocalViewBounds.contains(x, y) == false) + return NULL; + const CachedFrame* result = this; + for (const CachedFrame* frame = mCachedFrames.begin(); + frame != mCachedFrames.end(); frame++) { + const CachedFrame* frameResult = frame->findBestFrameAt(x, y); + if (NULL != frameResult) + result = frameResult; + } + return result; +} + +const CachedNode* CachedFrame::findBestHitAt(const WebCore::IntRect& rect, + const CachedFrame** framePtr, int* x, int* y) const +{ + mRoot->setupScrolledBounds(); + for (const CachedFrame* frame = mCachedFrames.end() - 1; + frame != mCachedFrames.begin() - 1; frame--) { + const CachedNode* frameResult = frame->findBestHitAt(rect, + framePtr, x, y); + if (NULL != frameResult) + return frameResult; + } + for (const CachedNode* test = mCachedNodes.end() - 1; + test != mCachedNodes.begin() - 1; test--) { + if (test->disabled()) + continue; + WebCore::IntRect testRect = test->hitBounds(this); + if (testRect.intersects(rect) == false) + continue; + BestData testData; + testData.mNode = test; + testData.mFrame = this; + testData.setMouseBounds(testRect); + testData.setNodeBounds(testRect); + if (mRoot->maskIfHidden(&testData) == true) + continue; + DBG_NAV_LOGD("candidate %d rect=(%d,%d,r=%d,b=%d)" + " testRect=(%d,%d,r=%d,b=%d)", + test->index(), rect.x(), rect.y(), rect.right(), rect.bottom(), + testRect.x(), testRect.y(), testRect.right(), testRect.bottom()); + for (int i = 0; i < test->navableRects(); i++) { + WebCore::IntRect cursorRect = test->ring(this, i); + DBG_NAV_LOGD("candidate %d cursorRect=(%d,%d,r=%d,b=%d)", + i, cursorRect.x(), cursorRect.y(), cursorRect.right(), + cursorRect.bottom()); + if (cursorRect.intersects(rect)) { + WebCore::IntRect intersection(cursorRect); + intersection.intersect(rect); + *x = intersection.x() + (intersection.width() >> 1); + *y = intersection.y() + (intersection.height() >> 1); + *framePtr = this; + return test; + } + } + testRect.intersect(rect); + *x = testRect.x() + (testRect.width() >> 1); + *y = testRect.y() + (testRect.height() >> 1); + *framePtr = this; + return test; + } + return NULL; +} + +void CachedFrame::findClosest(BestData* bestData, Direction originalDirection, + Direction direction, WebCore::IntRect* clip) const +{ + const CachedNode* test = mCachedNodes.begin(); + while ((test = test->traverseNextNode()) != NULL) { + const CachedFrame* child = hasFrame(test); + if (child != NULL) { + const CachedNode* childDoc = child->validDocument(); + if (childDoc == NULL) + continue; + child->findClosest(bestData, originalDirection, direction, clip); + } + if (test->noSecondChance()) + continue; + if (test->isNavable(this, *clip) == false) + continue; + if (checkVisited(test, originalDirection) == false) + continue; + size_t partMax = test->navableRects(); + for (size_t part = 0; part < partMax; part++) { + WebCore::IntRect testBounds = test->ring(this, part); + if (clip->intersects(testBounds) == false) + continue; + if (clip->contains(testBounds) == false) { + if (direction & UP_DOWN) { +// if (testBounds.x() > clip->x() || testBounds.right() < clip->right()) +// continue; + testBounds.setX(clip->x()); + testBounds.setWidth(clip->width()); + } else { +// if (testBounds.y() > clip->y() || testBounds.bottom() < clip->bottom()) +// continue; + testBounds.setY(clip->y()); + testBounds.setHeight(clip->height()); + } + if (clip->contains(testBounds) == false) + continue; + } + int distance; + // seems like distance for UP for instance needs to be 'test top closest to + // clip bottom' -- keep the old code but try this instead + switch (direction) { +#if 0 + case LEFT: distance = testBounds.x() - clip->x(); break; + case RIGHT: distance = clip->right() - testBounds.right(); break; + case UP: distance = testBounds.y() - clip->y(); break; + case DOWN: distance = clip->bottom() - testBounds.bottom(); break; +#else + case LEFT: distance = clip->right() - testBounds.x(); break; + case RIGHT: distance = testBounds.right() - clip->x(); break; + case UP: distance = clip->bottom() - testBounds.y(); break; + case DOWN: distance = testBounds.bottom() - clip->y(); break; +#endif + default: + distance = 0; ASSERT(0); + } + if (distance < bestData->mDistance) { + bestData->mNode = test; + bestData->mFrame = this; + bestData->mDistance = distance; + WebCore::IntRect rect = test->ring(this, part); + bestData->setMouseBounds(rect); + bestData->setNodeBounds(rect); + CachedHistory* cachedHistory = history(); + switch (direction) { + case LEFT: + bestData->setLeftDirection(cachedHistory); + break; + case RIGHT: + bestData->setRightDirection(cachedHistory); + break; + case UP: + bestData->setUpDirection(cachedHistory); + break; + case DOWN: + bestData->setDownDirection(cachedHistory); + break; + default: + ASSERT(0); + } + } + } + } +} + +void CachedFrame::finishInit() +{ + CachedNode* lastCached = lastNode(); + lastCached->setLast(); + CachedFrame* child = mCachedFrames.begin(); + while (child != mCachedFrames.end()) { + child->mParent = this; + child->finishInit(); + child++; + } + CachedFrame* frameParent; + if (mFocusIndex >= 0 && (frameParent = parent())) + frameParent->setFocusIndex(indexInParent()); +} + +const CachedNode* CachedFrame::frameDown(const CachedNode* test, + const CachedNode* limit, BestData* bestData) const +{ + BestData originalData = *bestData; + do { + if (moveInFrame(&CachedFrame::frameDown, test, bestData)) + continue; + BestData testData; + if (frameNodeCommon(testData, test, bestData, &originalData) == REJECT_TEST) + continue; + if (checkVisited(test, DOWN) == false) + continue; + size_t parts = test->navableRects(); + for (size_t part = 0; part < parts; part++) { + testData.setNodeBounds(test->ring(this, part)); + if (testData.setDownDirection(history())) + continue; + int result = framePartCommon(testData, test, bestData); + if (result == REJECT_TEST) + continue; + if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger + BestData innerData = testData; + frameDown(document(), test, &innerData); + if (checkVisited(innerData.mNode, DOWN)) { + *bestData = innerData; + continue; + } + } + if (checkVisited(test, DOWN)) + *bestData = testData; + } + } while ((test = test->traverseNextNode()) != limit); + ASSERT(mRoot->mCursor == NULL || bestData->mNode != mRoot->mCursor); + // does the best contain something (or, is it contained by an area which is not the cursor?) + // if so, is the conainer/containee should have been chosen, but wasn't -- so there's a better choice + // in the doc list prior to this choice + // + return bestData->mNode; +} + +const CachedNode* CachedFrame::frameLeft(const CachedNode* test, + const CachedNode* limit, BestData* bestData) const +{ + BestData originalData = *bestData; + do { + if (moveInFrame(&CachedFrame::frameLeft, test, bestData)) + continue; + BestData testData; + if (frameNodeCommon(testData, test, bestData, &originalData) == REJECT_TEST) + continue; + if (checkVisited(test, LEFT) == false) + continue; + size_t parts = test->navableRects(); + for (size_t part = 0; part < parts; part++) { + testData.setNodeBounds(test->ring(this, part)); + if (testData.setLeftDirection(history())) + continue; + int result = framePartCommon(testData, test, bestData); + if (result == REJECT_TEST) + continue; + if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger + BestData innerData = testData; + frameLeft(document(), test, &innerData); + if (checkVisited(innerData.mNode, LEFT)) { + *bestData = innerData; + continue; + } + } + if (checkVisited(test, LEFT)) + *bestData = testData; + } + } while ((test = test->traverseNextNode()) != limit); // FIXME ??? left and up should use traversePreviousNode to choose reverse document order + ASSERT(mRoot->mCursor == NULL || bestData->mNode != mRoot->mCursor); + return bestData->mNode; +} + +int CachedFrame::frameNodeCommon(BestData& testData, const CachedNode* test, + BestData* bestData, BestData* originalData) const +{ + testData.mFrame = this; + testData.mNode = test; + test->clearCondition(); + if (test->disabled()) { + testData.mNode->setCondition(CachedNode::DISABLED); + return REJECT_TEST; + } + WebCore::IntRect bounds = test->bounds(this); + if (bounds.isEmpty()) { + testData.mNode->setCondition(CachedNode::NAVABLE); + return REJECT_TEST; + } + if (mRoot->scrolledBounds().intersects(bounds) == false) { + testData.mNode->setCondition(CachedNode::NAVABLE); + return REJECT_TEST; + } + if (mRoot->rootLayer() && !test->isInLayer() + && !mRoot->baseUncovered().intersects(bounds)) { + testData.mNode->setCondition(CachedNode::UNDER_LAYER); + return REJECT_TEST; + } +// if (isNavable(test, &testData.mNodeBounds, walk) == false) { +// testData.mNode->setCondition(CachedNode::NAVABLE); +// return REJECT_TEST; +// } +// + if (test == mRoot->mCursor) { + testData.mNode->setCondition(CachedNode::NOT_CURSOR_NODE); + return REJECT_TEST; + } +// if (test->bounds().contains(mRoot->mCursorBounds)) { +// testData.mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); +// return REJECT_TEST; +// } + void* par = mRoot->mCursor ? mRoot->mCursor->parentGroup() : NULL; + testData.mCursorChild = par ? test->parentGroup() == par : false; + if (bestData->mNode == NULL) + return TEST_IS_BEST; + if (mRoot->mCursor && testData.mNode->parentIndex() != bestData->mNode->parentIndex()) { + int cursorParentIndex = mRoot->mCursor->parentIndex(); + if (cursorParentIndex >= 0) { + if (bestData->mNode->parentIndex() == cursorParentIndex) + return REJECT_TEST; + if (testData.mNode->parentIndex() == cursorParentIndex) + return TEST_IS_BEST; + } + } + if (testData.mNode->parent() == bestData->mNode) { + testData.mNode->setCondition(CachedNode::CHILD); + return REJECT_TEST; + } + if (testData.mNode == bestData->mNode->parent()) + return TEST_IS_BEST; + int testInBest = testData.isContainer(bestData); /* -1 pick best over test, 0 no containership, 1 pick test over best */ + if (testInBest == 1) { + if (test->isArea() || bestData->mNode->isArea()) + return UNDECIDED; + bestData->mNode = NULL; // force part tests to be ignored, yet still set up remaining test data for later comparisons + return TEST_IS_BEST; + } + if (testInBest == -1) { + testData.mNode->setCondition(CachedNode::OUTSIDE_OF_BEST); + return REJECT_TEST; + } + if (originalData->mNode != NULL) { // test is best case + testInBest = testData.isContainer(originalData); + if (testInBest == -1) { /* test is inside best */ + testData.mNode->setCondition(CachedNode::OUTSIDE_OF_ORIGINAL); + return REJECT_TEST; + } + } + return UNDECIDED; +} + +int CachedFrame::framePartCommon(BestData& testData, + const CachedNode* test, BestData* bestData) const +{ + if (mRoot->mCursor + && testData.bounds().contains(mRoot->mCursorBounds) + && !test->wantsKeyEvents()) { + testData.mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); + return REJECT_TEST; + } + testData.setDistances(); + if (bestData->mNode != NULL) { + int compared = compare(testData, *bestData); + if (compared == 0 && test->isArea() == false && bestData->mNode->isArea() == false) + goto pickTest; + if (compared >= 0) + return compared; + } +pickTest: + return -1; // pick test +} + +const CachedNode* CachedFrame::frameRight(const CachedNode* test, + const CachedNode* limit, BestData* bestData) const +{ + BestData originalData = *bestData; + do { + if (moveInFrame(&CachedFrame::frameRight, test, bestData)) + continue; + BestData testData; + if (frameNodeCommon(testData, test, bestData, &originalData) == REJECT_TEST) + continue; + if (checkVisited(test, RIGHT) == false) + continue; + size_t parts = test->navableRects(); + for (size_t part = 0; part < parts; part++) { + testData.setNodeBounds(test->ring(this, part)); + if (testData.setRightDirection(history())) + continue; + int result = framePartCommon(testData, test, bestData); + if (result == REJECT_TEST) + continue; + if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger + BestData innerData = testData; + frameRight(document(), test, &innerData); + if (checkVisited(innerData.mNode, RIGHT)) { + *bestData = innerData; + continue; + } + } + if (checkVisited(test, RIGHT)) + *bestData = testData; + } + } while ((test = test->traverseNextNode()) != limit); + ASSERT(mRoot->mCursor == NULL || bestData->mNode != mRoot->mCursor); + return bestData->mNode; +} + +const CachedNode* CachedFrame::frameUp(const CachedNode* test, + const CachedNode* limit, BestData* bestData) const +{ + BestData originalData = *bestData; + do { + if (moveInFrame(&CachedFrame::frameUp, test, bestData)) + continue; + BestData testData; + if (frameNodeCommon(testData, test, bestData, &originalData) == REJECT_TEST) + continue; + if (checkVisited(test, UP) == false) + continue; + size_t parts = test->navableRects(); + for (size_t part = 0; part < parts; part++) { + testData.setNodeBounds(test->ring(this, part)); + if (testData.setUpDirection(history())) + continue; + int result = framePartCommon(testData, test, bestData); + if (result == REJECT_TEST) + continue; + if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger + BestData innerData = testData; + frameUp(document(), test, &innerData); + if (checkVisited(innerData.mNode, UP)) { + *bestData = innerData; + continue; + } + } + if (checkVisited(test, UP)) + *bestData = testData; + } + } while ((test = test->traverseNextNode()) != limit); // FIXME ??? left and up should use traversePreviousNode to choose reverse document order + ASSERT(mRoot->mCursor == NULL || bestData->mNode != mRoot->mCursor); + return bestData->mNode; +} + +CachedFrame* CachedFrame::hasFrame(const CachedNode* node) +{ + return node->isFrame() ? &mCachedFrames[node->childFrameIndex()] : NULL; +} + +void CachedFrame::hideCursor() +{ + DBG_NAV_LOGD("mCursorIndex=%d", mCursorIndex); + if (mCursorIndex < CURSOR_SET) + return; + CachedNode& cursor = mCachedNodes[mCursorIndex]; + cursor.hideCursor(this); +} + +CachedHistory* CachedFrame::history() const +{ + return mRoot->rootHistory(); +} + +void CachedFrame::init(const CachedRoot* root, int childFrameIndex, + WebCore::Frame* frame) +{ + mContents = WebCore::IntRect(0, 0, 0, 0); // fixed up for real in setData() + mLocalViewBounds = WebCore::IntRect(0, 0, 0, 0); + mViewBounds = WebCore::IntRect(0, 0, 0, 0); + mRoot = root; + mCursorIndex = CURSOR_UNINITIALIZED; // not explicitly cleared + mFocusIndex = -1; + mFrame = frame; + mParent = NULL; // set up parents after stretchy arrays are set up + mIndexInParent = childFrameIndex; +} + +#if USE(ACCELERATED_COMPOSITING) +const CachedLayer* CachedFrame::layer(const CachedNode* node) const +{ + if (!node->isInLayer()) + return 0; + CachedLayer test; + test.setCachedNodeIndex(node->index()); + return std::lower_bound(mCachedLayers.begin(), mCachedLayers.end(), test); +} +#endif + +WebCore::IntRect CachedFrame::localBounds(const CachedNode* node, + const WebCore::IntRect& rect) const +{ + DBG_NAV_LOGD("node=%p [%d] rect=(%d,%d,w=%d,h=%d)", + node, node->index(), rect.x(), rect.y(), rect.width(), rect.height()); +#if USE(ACCELERATED_COMPOSITING) + return layer(node)->localBounds(mRoot->rootLayer(), rect); +#else + return rect; +#endif +} + +int CachedFrame::minWorkingHorizontal() const +{ + return history()->minWorkingHorizontal(); +} + +int CachedFrame::minWorkingVertical() const +{ + return history()->minWorkingVertical(); +} + +int CachedFrame::maxWorkingHorizontal() const +{ + return history()->maxWorkingHorizontal(); +} + +int CachedFrame::maxWorkingVertical() const +{ + return history()->maxWorkingVertical(); +} + +const CachedNode* CachedFrame::nextTextField(const CachedNode* start, + const CachedFrame** framePtr, bool* startFound) const +{ + const CachedNode* test = mCachedNodes.begin(); + while ((test = test->traverseNextNode())) { + const CachedFrame* frame = hasFrame(test); + if (frame) { + if (!frame->validDocument()) + continue; + const CachedNode* node + = frame->nextTextField(start, framePtr, startFound); + if (node) + return node; + } else if (test->isTextInput()) { + if (test == start) + *startFound = true; + else if (*startFound) { + if (framePtr) + *framePtr = this; + return test; + } + } + } + return 0; +} + +bool CachedFrame::moveInFrame(MoveInDirection moveInDirection, + const CachedNode* test, BestData* bestData) const +{ + const CachedFrame* frame = hasFrame(test); + if (frame == NULL) + return false; // if it's not a frame, let the caller have another swing at it + const CachedNode* childDoc = frame->validDocument(); + if (childDoc == NULL) + return true; + (frame->*moveInDirection)(childDoc, NULL, bestData); + return true; +} + +const WebCore::IntRect& CachedFrame::_navBounds() const +{ + return history()->navBounds(); +} + +SkPicture* CachedFrame::picture(const CachedNode* node) const +{ +#if USE(ACCELERATED_COMPOSITING) + if (node->isInLayer()) + return layer(node)->picture(mRoot->rootLayer()); +#endif + return mRoot->mPicture; +} + +SkPicture* CachedFrame::picture(const CachedNode* node, int* xPtr, int* yPtr) const +{ +#if USE(ACCELERATED_COMPOSITING) + if (node->isInLayer()) { + const CachedLayer* cachedLayer = layer(node); + const LayerAndroid* rootLayer = mRoot->rootLayer(); + cachedLayer->toLocal(rootLayer, xPtr, yPtr); + return cachedLayer->picture(rootLayer); + } +#endif + return mRoot->mPicture; +} + +void CachedFrame::resetClippedOut() +{ + for (CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++) + { + if (test->clippedOut()) { + test->setDisabled(false); + test->setClippedOut(false); + } + } + for (CachedFrame* frame = mCachedFrames.begin(); frame != mCachedFrames.end(); + frame++) { + frame->resetClippedOut(); + } +} + +void CachedFrame::resetLayers() +{ +#if USE(ACCELERATED_COMPOSITING) + for (CachedFrame* frame = mCachedFrames.begin(); frame != mCachedFrames.end(); + frame++) { + frame->resetLayers(); + } +#endif +} + +bool CachedFrame::sameFrame(const CachedFrame* test) const +{ + ASSERT(test); + if (mIndexInParent != test->mIndexInParent) + return false; + if (mIndexInParent == -1) // index within parent's array of children, or -1 if root + return true; + return mParent->sameFrame(test->mParent); +} + +void CachedFrame::setData() +{ + if (this != mRoot) { + mViewBounds = mLocalViewBounds; + mViewBounds.intersect(mRoot->mViewBounds); + } + int x, y; + if (parent() == NULL) + x = y = 0; + else { + x = mLocalViewBounds.x(); + y = mLocalViewBounds.y(); + } + mContents.setX(x); + mContents.setY(y); + CachedFrame* child = mCachedFrames.begin(); + while (child != mCachedFrames.end()) { + child->setData(); + child++; + } +} + +bool CachedFrame::setCursor(WebCore::Frame* frame, WebCore::Node* node, + int x, int y) +{ + if (NULL == node) { + const_cast<CachedRoot*>(mRoot)->setCursor(NULL, NULL); + return true; + } + if (mFrame != frame) { + for (CachedFrame* testF = mCachedFrames.begin(); testF != mCachedFrames.end(); + testF++) { + if (testF->setCursor(frame, node, x, y)) + return true; + } + DBG_NAV_LOGD("no frame frame=%p node=%p", frame, node); + return false; + } + bool first = true; + CachedNode const * const end = mCachedNodes.end(); + do { + for (CachedNode* test = mCachedNodes.begin(); test != end; test++) { + if (test->nodePointer() != node && first) + continue; + size_t partMax = test->navableRects(); + for (size_t part = 0; part < partMax; part++) { + WebCore::IntRect testBounds = test->ring(this, part); + if (testBounds.contains(x, y) == false) + continue; + if (test->isCursor()) { + DBG_NAV_LOGD("already set? test=%d frame=%p node=%p x=%d y=%d", + test->index(), frame, node, x, y); + return false; + } + const_cast<CachedRoot*>(mRoot)->setCursor(this, test); + return true; + } + } + DBG_NAV_LOGD("moved? frame=%p node=%p x=%d y=%d", frame, node, x, y); + } while ((first ^= true) == false); +failed: + DBG_NAV_LOGD("no match frame=%p node=%p", frame, node); + return false; +} + +const CachedNode* CachedFrame::validDocument() const +{ + const CachedNode* doc = document(); + return doc != NULL && mViewBounds.isEmpty() == false ? doc : NULL; +} + +bool CachedFrame::BestData::canBeReachedByAnotherDirection() +{ + if (mMajorButt > -MIN_OVERLAP) + return false; + mMajorButt = -mMajorButt; + return mNavOutside; +} + +int CachedFrame::BestData::isContainer(CachedFrame::BestData* other) +{ + int _x = x(); + int otherRight = other->right(); + if (_x >= otherRight) + return 0; // does not intersect + int _y = y(); + int otherBottom = other->bottom(); + if (_y >= otherBottom) + return 0; // does not intersect + int _right = right(); + int otherX = other->x(); + if (otherX >= _right) + return 0; // does not intersect + int _bottom = bottom(); + int otherY = other->y(); + if (otherY >= _bottom) + return 0; // does not intersect + int intoX = otherX - _x; + int intoY = otherY - _y; + int intoRight = otherRight - _right; + int intoBottom = otherBottom - _bottom; + bool contains = intoX >= 0 && intoY >= 0 && intoRight <= 0 && intoBottom <= 0; + if (contains && mNode->partRectsContains(other->mNode)) { +// if (mIsArea == false && hasMouseOver()) +// other->mMouseOver = mNode; + return mNode->isArea() ? 1 : -1; + } + bool containedBy = intoX <= 0 && intoY <= 0 && intoRight >= 0 && intoBottom >= 0; + if (containedBy && other->mNode->partRectsContains(mNode)) { +// if (other->mIsArea == false && other->hasMouseOver()) +// mMouseOver = other->mNode; + return other->mNode->isArea() ? -1 : 1; + } + return 0; +} + +// distance scale factor factor as a 16.16 scalar +SkFixed CachedFrame::BestData::Overlap(int span, int left, int right) +{ + unsigned result; + if (left > 0 && left < span && right > span) + result = (unsigned) left; + else if (right > 0 && right < span && left > span) + result = (unsigned) right; + else if (left > 0 && right > 0) + return SK_Fixed1; + else + return 0; + result = (result << 16) / (unsigned) span; // linear proportion, always less than fixed 1 + return (SkFixed) result; +// !!! experiment with weight -- enable if overlaps are preferred too much +// or reverse weighting if overlaps are preferred to little +// return (SkFixed) (result * result >> 16); // but fall off with square +} + +void CachedFrame::BestData::setDistances() +{ + mDistance = abs(mMajorDelta); + int sideDistance = mWorkingDelta; + if (mWorkingOverlap < SK_Fixed1) { + if (mPreferred > 0) + sideDistance = mWorkingDelta2; + } else if (sideDistance >= 0 && mWorkingDelta2 >=- 0) + sideDistance = 0; + else { + ASSERT(sideDistance <= 0 && mWorkingDelta2 <= 0); + if (sideDistance < mWorkingDelta2) + sideDistance = mWorkingDelta2; + } + // if overlap, smaller abs mWorkingDelta is better, smaller abs majorDelta is better + // if not overlap, positive mWorkingDelta is better + mSideDistance = sideDistance; +} + +bool CachedFrame::BestData::setDownDirection(const CachedHistory* history) +{ + const WebCore::IntRect& navBounds = history->navBounds(); + mMajorButt = mNodeBounds.y() - navBounds.bottom(); + int testX = mNodeBounds.x(); + int testRight = mNodeBounds.right(); + setNavOverlap(navBounds.width(), navBounds.right() - testX, + testRight - navBounds.x()); + if (canBeReachedByAnotherDirection()) { + mNode->setCondition(CachedNode::BEST_DIRECTION); + return REJECT_TEST; + } + int inNavTop = mNodeBounds.y() - navBounds.y(); + mMajorDelta2 = inNavTop; + mMajorDelta = mMajorDelta2 + ((mNodeBounds.height() - + navBounds.height()) >> 1); + if (mMajorDelta2 <= 1 && mMajorDelta <= 1) { + mNode->setCondition(CachedNode::CENTER_FURTHER); // never move up or sideways + return REJECT_TEST; + } + int inNavBottom = navBounds.bottom() - mNodeBounds.bottom(); + setNavInclusion(testRight - navBounds.right(), navBounds.x() - testX); + bool subsumes = navBounds.height() > 0 && inOrSubsumesNav(); + if (inNavTop <= 0 && inNavBottom <= 0 && subsumes && !mNode->wantsKeyEvents()) { + mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); + return REJECT_TEST; + } + int maxV = history->maxWorkingVertical(); + int minV = history->minWorkingVertical(); + setWorkingOverlap(testRight - testX, maxV - testX, testRight - minV); + setWorkingInclusion(testRight - maxV, minV - testX); + if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavBottom >= 0) { + mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER); + return REJECT_TEST; + } + mInNav = history->directionChange() && inNavTop >= 0 && + inNavBottom > 0 && subsumes; + return false; +} + +bool CachedFrame::BestData::setLeftDirection(const CachedHistory* history) +{ + const WebCore::IntRect& navBounds = history->navBounds(); + mMajorButt = navBounds.x() - mNodeBounds.right(); + int testY = mNodeBounds.y(); + int testBottom = mNodeBounds.bottom(); + setNavOverlap(navBounds.height(), navBounds.bottom() - testY, + testBottom - navBounds.y()); + if (canBeReachedByAnotherDirection()) { + mNode->setCondition(CachedNode::BEST_DIRECTION); + return REJECT_TEST; + } + int inNavRight = navBounds.right() - mNodeBounds.right(); + mMajorDelta2 = inNavRight; + mMajorDelta = mMajorDelta2 - ((navBounds.width() - + mNodeBounds.width()) >> 1); + if (mMajorDelta2 <= 1 && mMajorDelta <= 1) { + mNode->setCondition(CachedNode::CENTER_FURTHER); // never move right or sideways + return REJECT_TEST; + } + int inNavLeft = mNodeBounds.x() - navBounds.x(); + setNavInclusion(navBounds.y() - testY, testBottom - navBounds.bottom()); + bool subsumes = navBounds.width() > 0 && inOrSubsumesNav(); + if (inNavLeft <= 0 && inNavRight <= 0 && subsumes && !mNode->wantsKeyEvents()) { + mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); + return REJECT_TEST; + } + int maxH = history->maxWorkingHorizontal(); + int minH = history->minWorkingHorizontal(); + setWorkingOverlap(testBottom - testY, maxH - testY, testBottom - minH); + setWorkingInclusion(minH - testY, testBottom - maxH); + if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavLeft >= 0) { + mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER); + return REJECT_TEST; + } + mInNav = history->directionChange() && inNavLeft >= 0 && + inNavRight > 0 && subsumes; /* both L/R in or out */ + return false; +} + +bool CachedFrame::BestData::setRightDirection(const CachedHistory* history) +{ + const WebCore::IntRect& navBounds = history->navBounds(); + mMajorButt = mNodeBounds.x() - navBounds.right(); + int testY = mNodeBounds.y(); + int testBottom = mNodeBounds.bottom(); + setNavOverlap(navBounds.height(), navBounds.bottom() - testY, + testBottom - navBounds.y()); + if (canBeReachedByAnotherDirection()) { + mNode->setCondition(CachedNode::BEST_DIRECTION); + return REJECT_TEST; + } + int inNavLeft = mNodeBounds.x() - navBounds.x(); + mMajorDelta2 = inNavLeft; + mMajorDelta = mMajorDelta2 + ((mNodeBounds.width() - + navBounds.width()) >> 1); + if (mMajorDelta2 <= 1 && mMajorDelta <= 1) { + mNode->setCondition(CachedNode::CENTER_FURTHER); // never move left or sideways + return REJECT_TEST; + } + int inNavRight = navBounds.right() - mNodeBounds.right(); + setNavInclusion(testBottom - navBounds.bottom(), navBounds.y() - testY); + bool subsumes = navBounds.width() > 0 && inOrSubsumesNav(); + if (inNavLeft <= 0 && inNavRight <= 0 && subsumes && !mNode->wantsKeyEvents()) { + mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); + return REJECT_TEST; + } + int maxH = history->maxWorkingHorizontal(); + int minH = history->minWorkingHorizontal(); + setWorkingOverlap(testBottom - testY, testBottom - minH, maxH - testY); + setWorkingInclusion(testBottom - maxH, minH - testY); + if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavRight >= 0) { + mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER); + return REJECT_TEST; + } + mInNav = history->directionChange() && inNavLeft >= 0 && + inNavRight > 0 && subsumes; /* both L/R in or out */ + return false; +} + +bool CachedFrame::BestData::setUpDirection(const CachedHistory* history) +{ + const WebCore::IntRect& navBounds = history->navBounds(); + mMajorButt = navBounds.y() - mNodeBounds.bottom(); + int testX = mNodeBounds.x(); + int testRight = mNodeBounds.right(); + setNavOverlap(navBounds.width(), navBounds.right() - testX, + testRight - navBounds.x()); + if (canBeReachedByAnotherDirection()) { + mNode->setCondition(CachedNode::BEST_DIRECTION); + return REJECT_TEST; + } + int inNavBottom = navBounds.bottom() - mNodeBounds.bottom(); + mMajorDelta2 = inNavBottom; + mMajorDelta = mMajorDelta2 - ((navBounds.height() - + mNodeBounds.height()) >> 1); + if (mMajorDelta2 <= 1 && mMajorDelta <= 1) { + mNode->setCondition(CachedNode::CENTER_FURTHER); // never move down or sideways + return REJECT_TEST; + } + int inNavTop = mNodeBounds.y() - navBounds.y(); + setNavInclusion(navBounds.x() - testX, testRight - navBounds.right()); + bool subsumes = navBounds.height() > 0 && inOrSubsumesNav(); + if (inNavTop <= 0 && inNavBottom <= 0 && subsumes && !mNode->wantsKeyEvents()) { + mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR); + return REJECT_TEST; + } + int maxV = history->maxWorkingVertical(); + int minV = history->minWorkingVertical(); + setWorkingOverlap(testRight - testX, testRight - minV, maxV - testX); + setWorkingInclusion(minV - testX, testRight - maxV); + if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavTop >= 0) { + mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER); + return REJECT_TEST; + } + mInNav = history->directionChange() && inNavTop >= 0 && + inNavBottom > 0 && subsumes; /* both L/R in or out */ + return false; +} + +void CachedFrame::BestData::setNavInclusion(int left, int right) +{ + // if left and right <= 0, test node is completely in umbra of cursor + // prefer leftmost center + // if left and right > 0, test node subsumes cursor + mNavDelta = left; + mNavDelta2 = right; +} + +void CachedFrame::BestData::setNavOverlap(int span, int left, int right) +{ + // if left or right < 0, test node is not in umbra of cursor + mNavOutside = left < MIN_OVERLAP || right < MIN_OVERLAP; + mNavOverlap = Overlap(span, left, right); // prefer smallest negative left +} + +void CachedFrame::BestData::setWorkingInclusion(int left, int right) +{ + mWorkingDelta = left; + mWorkingDelta2 = right; +} + +// distance scale factor factor as a 16.16 scalar +void CachedFrame::BestData::setWorkingOverlap(int span, int left, int right) +{ + // if left or right < 0, test node is not in umbra of cursor + mWorkingOutside = left < MIN_OVERLAP || right < MIN_OVERLAP; + mWorkingOverlap = Overlap(span, left, right); + mPreferred = left <= 0 ? 0 : left; +} + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_RECT(prefix, debugName, field) \ + { const WebCore::IntRect& r = b->field; \ + DUMP_NAV_LOGD("%s DebugTestRect TEST%s_" #debugName "={%d, %d, %d, %d}; //" #field "\n", \ + prefix, mFrameName, r.x(), r.y(), r.width(), r.height()); } + +CachedFrame* CachedFrame::Debug::base() const { + CachedFrame* nav = (CachedFrame*) ((char*) this - OFFSETOF(CachedFrame, mDebug)); + return nav; +} + +void CachedFrame::Debug::print() const +{ + CachedFrame* b = base(); + DEBUG_PRINT_RECT("//", CONTENTS, mContents); + DEBUG_PRINT_RECT("", BOUNDS, mLocalViewBounds); + DEBUG_PRINT_RECT("//", VIEW, mViewBounds); + + DUMP_NAV_LOGD("// CachedNode mCachedNodes={ // count=%d\n", b->mCachedNodes.size()); + for (CachedNode* node = b->mCachedNodes.begin(); + node != b->mCachedNodes.end(); node++) { + node->mDebug.print(); + const CachedInput* input = b->textInput(node); + if (input) + input->mDebug.print(); + DUMP_NAV_LOGD("\n"); + } + DUMP_NAV_LOGD("// }; // end of nodes\n"); +#if USE(ACCELERATED_COMPOSITING) + DUMP_NAV_LOGD("// CachedLayer mCachedLayers={ // count=%d\n", b->mCachedLayers.size()); + for (CachedLayer* layer = b->mCachedLayers.begin(); + layer != b->mCachedLayers.end(); layer++) { + layer->mDebug.print(); + } + DUMP_NAV_LOGD("// }; // end of layers\n"); +#endif // USE(ACCELERATED_COMPOSITING) + DUMP_NAV_LOGD("// CachedColor mCachedColors={ // count=%d\n", b->mCachedColors.size()); + for (CachedColor* color = b->mCachedColors.begin(); + color != b->mCachedColors.end(); color++) { + color->mDebug.print(); + } + DUMP_NAV_LOGD("// }; // end of colors\n"); + DUMP_NAV_LOGD("// CachedFrame mCachedFrames={ // count=%d\n", b->mCachedFrames.size()); + for (CachedFrame* child = b->mCachedFrames.begin(); + child != b->mCachedFrames.end(); child++) + { + child->mDebug.print(); + } + DUMP_NAV_LOGD("// }; // end of child frames\n"); + DUMP_NAV_LOGD("// void* mFrame=(void*) %p;\n", b->mFrame); + DUMP_NAV_LOGD("// CachedFrame* mParent=%p;\n", b->mParent); + DUMP_NAV_LOGD("// int mIndexInParent=%d;\n", b->mIndexInParent); + DUMP_NAV_LOGD("// const CachedRoot* mRoot=%p;\n", b->mRoot); + DUMP_NAV_LOGD("// int mCursorIndex=%d;\n", b->mCursorIndex); + DUMP_NAV_LOGD("// int mFocusIndex=%d;\n", b->mFocusIndex); +} + +bool CachedFrame::Debug::validate(const CachedNode* node) const +{ + const CachedFrame* b = base(); + if (b->mCachedNodes.size() == 0) + return false; + if (node >= b->mCachedNodes.begin() && node < b->mCachedNodes.end()) + return true; + for (const CachedFrame* child = b->mCachedFrames.begin(); + child != b->mCachedFrames.end(); child++) + if (child->mDebug.validate(node)) + return true; + return false; +} + +#undef DEBUG_PRINT_RECT + +#endif + +} diff --git a/Source/WebKit/android/nav/CachedFrame.h b/Source/WebKit/android/nav/CachedFrame.h new file mode 100644 index 0000000..039a0ee --- /dev/null +++ b/Source/WebKit/android/nav/CachedFrame.h @@ -0,0 +1,285 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedFrame_H +#define CachedFrame_H + +#include "CachedColor.h" +#include "CachedInput.h" +#include "CachedLayer.h" +#include "CachedNode.h" +#include "IntRect.h" +#include "SkFixed.h" +#include "wtf/Vector.h" + +class SkPicture; + +namespace WebCore { + class Frame; + class Node; +} + +namespace android { + +class CachedHistory; +class CachedRoot; + + // first node referenced by cache is always document +class CachedFrame { +public: + enum Direction { + UNINITIALIZED = -1, + LEFT, + RIGHT, + UP, + DOWN, + DIRECTION_COUNT, + DIRECTION_MASK = DIRECTION_COUNT - 1, + UP_DOWN = UP & DOWN, // mask and result + RIGHT_DOWN = RIGHT & DOWN, // mask and result + }; + enum Compare { + UNDECIDED = -1, + TEST_IS_BEST, + REJECT_TEST + }; + enum CursorInit { + CURSOR_UNINITIALIZED = -2, + CURSOR_CLEARED = -1, + CURSOR_SET = 0 + }; + CachedFrame() {} + void add(CachedColor& color) { mCachedColors.append(color); } + void add(CachedInput& input) { mCachedTextInputs.append(input); } +#if USE(ACCELERATED_COMPOSITING) + void add(CachedLayer& layer) { mCachedLayers.append(layer); } +#endif + void add(CachedNode& node) { mCachedNodes.append(node); } + void addFrame(CachedFrame& child) { mCachedFrames.append(child); } + WebCore::IntRect adjustBounds(const CachedNode* , + const WebCore::IntRect& ) const; + bool checkRings(const CachedNode* node, + const WebCore::IntRect& testBounds) const; + bool checkVisited(const CachedNode* , CachedFrame::Direction ) const; + size_t childCount() { return mCachedFrames.size(); } + void clearCursor(); + const CachedColor& color(const CachedNode* node) const { + return mCachedColors[node->colorIndex()]; + } + const CachedNode* currentCursor() const { return currentCursor(NULL); } + const CachedNode* currentCursor(const CachedFrame** ) const; + const CachedNode* currentFocus() const { return currentFocus(NULL); } + const CachedNode* currentFocus(const CachedFrame** ) const; + bool directionChange() const; + const CachedNode* document() const { return mCachedNodes.begin(); } + bool empty() const { return mCachedNodes.size() < 2; } // must have 1 past doc + const CachedNode* findBestAt(const WebCore::IntRect& , int* best, + bool* inside, const CachedNode** , const CachedFrame** directFrame, + const CachedFrame** resultFrame, int* x, + int* y, bool checkForHidden) const; + const CachedFrame* findBestFrameAt(int x, int y) const; + const CachedNode* findBestHitAt(const WebCore::IntRect& , + const CachedFrame** , int* x, int* y) const; + void finishInit(); + CachedFrame* firstChild() { return mCachedFrames.begin(); } + const CachedFrame* firstChild() const { return mCachedFrames.begin(); } + void* framePointer() const { return mFrame; } + CachedNode* getIndex(int index) { return index >= 0 ? + &mCachedNodes[index] : NULL; } + const CachedFrame* hasFrame(const CachedNode* node) const { + return const_cast<CachedFrame*>(this)->hasFrame(node); + } + CachedFrame* hasFrame(const CachedNode* node); + void hideCursor(); + int indexInParent() const { return mIndexInParent; } + void init(const CachedRoot* root, int index, WebCore::Frame* frame); + const CachedFrame* lastChild() const { return &mCachedFrames.last(); } +#if USE(ACCELERATED_COMPOSITING) + const CachedLayer* lastLayer() const { return &mCachedLayers.last(); } +#endif + CachedNode* lastNode() { return &mCachedNodes.last(); } + CachedFrame* lastChild() { return &mCachedFrames.last(); } +#if USE(ACCELERATED_COMPOSITING) + const CachedLayer* layer(const CachedNode* ) const; + size_t layerCount() const { return mCachedLayers.size(); } +#endif + WebCore::IntRect localBounds(const CachedNode* , + const WebCore::IntRect& ) const; + const CachedFrame* parent() const { return mParent; } + CachedFrame* parent() { return mParent; } + SkPicture* picture(const CachedNode* ) const; + SkPicture* picture(const CachedNode* , int* xPtr, int* yPtr) const; + void resetLayers(); + bool sameFrame(const CachedFrame* ) const; + void removeLast() { mCachedNodes.removeLast(); } + void resetClippedOut(); + void setContentsSize(int width, int height) { mContents.setWidth(width); + mContents.setHeight(height); } + bool setCursor(WebCore::Frame* , WebCore::Node* , int x, int y); + void setCursorIndex(int index) { mCursorIndex = index; } + void setData(); + bool setFocus(WebCore::Frame* , WebCore::Node* , int x, int y); + void setFocusIndex(int index) { mFocusIndex = index; } + void setIndexInParent(int index) { mIndexInParent = index; } + void setLocalViewBounds(const WebCore::IntRect& bounds) { mLocalViewBounds = bounds; } + int size() { return mCachedNodes.size(); } + const CachedInput* textInput(const CachedNode* node) const { + return node->isTextInput() ? &mCachedTextInputs[node->textInputIndex()] + : 0; + } + const CachedNode* validDocument() const; +protected: + const CachedNode* nextTextField(const CachedNode* start, + const CachedFrame** framePtr, bool* found) const; + struct BestData { + int mDistance; + int mSideDistance; + int mMajorDelta; // difference of center of object + // used only when leading and trailing edges contain another set of edges + int mMajorDelta2; // difference of leading edge (only used when center is same) + int mMajorButt; // checks for next cell butting up against or close to previous one + int mWorkingDelta; + int mWorkingDelta2; + int mNavDelta; + int mNavDelta2; + const CachedFrame* mFrame; + const CachedNode* mNode; + SkFixed mWorkingOverlap; // this and below are fuzzy answers instead of bools + SkFixed mNavOverlap; + SkFixed mPreferred; + bool mCursorChild; + bool mInNav; + bool mNavOutside; + bool mWorkingOutside; + int bottom() const { return bounds().bottom(); } + const WebCore::IntRect& bounds() const { return mNodeBounds; } + bool canBeReachedByAnotherDirection(); + int height() const { return bounds().height(); } + bool inOrSubsumesNav() const { return (mNavDelta ^ mNavDelta2) >= 0; } + bool inOrSubsumesWorking() const { return (mWorkingDelta ^ mWorkingDelta2) >= 0; } + int isContainer(BestData* ); + const WebCore::IntRect& mouseBounds() const { return mMouseBounds; } + static SkFixed Overlap(int span, int left, int right); + void reset() { mNode = NULL; } + int right() const { return bounds().right(); } + void setMouseBounds(const WebCore::IntRect& b) { mMouseBounds = b; } + void setNodeBounds(const WebCore::IntRect& b) { mNodeBounds = b; } + void setDistances(); + bool setDownDirection(const CachedHistory* ); + bool setLeftDirection(const CachedHistory* ); + bool setRightDirection(const CachedHistory* ); + bool setUpDirection(const CachedHistory* ); + void setNavInclusion(int left, int right); + void setNavOverlap(int span, int left, int right); + void setWorkingInclusion(int left, int right); + void setWorkingOverlap(int span, int left, int right); + int width() const { return bounds().width(); } + int x() const { return bounds().x(); } + int y() const { return bounds().y(); } +private: // since computing these is complicated, protect them so that the + // are only written by appropriate helpers + WebCore::IntRect mMouseBounds; + WebCore::IntRect mNodeBounds; + }; + typedef const CachedNode* (CachedFrame::*MoveInDirection)( + const CachedNode* test, const CachedNode* limit, BestData* ) const; + void adjustToTextColumn(int* delta) const; + static bool CheckBetween(Direction , const WebCore::IntRect& bestRect, + const WebCore::IntRect& prior, WebCore::IntRect* result); + bool checkBetween(BestData* , Direction ); + int compare(BestData& testData, const BestData& bestData) const; + void findClosest(BestData* , Direction original, Direction test, + WebCore::IntRect* clip) const; + int frameNodeCommon(BestData& testData, const CachedNode* test, + BestData* bestData, BestData* originalData) const; + int framePartCommon(BestData& testData, const CachedNode* test, + BestData* ) const; + const CachedNode* frameDown(const CachedNode* test, const CachedNode* limit, + BestData* ) const; + const CachedNode* frameLeft(const CachedNode* test, const CachedNode* limit, + BestData* ) const; + const CachedNode* frameRight(const CachedNode* test, const CachedNode* limit, + BestData* ) const; + const CachedNode* frameUp(const CachedNode* test, const CachedNode* limit, + BestData* ) const; + int minWorkingHorizontal() const; + int minWorkingVertical() const; + int maxWorkingHorizontal() const; + int maxWorkingVertical() const; + bool moveInFrame(MoveInDirection , const CachedNode* test, BestData* ) const; + const WebCore::IntRect& _navBounds() const; + WebCore::IntRect mContents; + WebCore::IntRect mLocalViewBounds; + WebCore::IntRect mViewBounds; + WTF::Vector<CachedColor> mCachedColors; + WTF::Vector<CachedNode> mCachedNodes; + WTF::Vector<CachedFrame> mCachedFrames; + WTF::Vector<CachedInput> mCachedTextInputs; +#if USE(ACCELERATED_COMPOSITING) + WTF::Vector<CachedLayer> mCachedLayers; +#endif + void* mFrame; // WebCore::Frame*, used only to compare pointers + CachedFrame* mParent; + int mCursorIndex; + int mFocusIndex; + int mIndexInParent; // index within parent's array of children, or -1 if root + const CachedRoot* mRoot; +private: + CachedHistory* history() const; +#ifdef BROWSER_DEBUG +public: + CachedNode* find(WebCore::Node* ); // !!! probably debugging only + int mDebugIndex; + int mDebugLoopbackOffset; +#endif +#if !defined NDEBUG || DUMP_NAV_CACHE +public: + class Debug { +public: + Debug() { +#if DUMP_NAV_CACHE + mFrameName[0] = '\0'; +#endif +#if !defined NDEBUG + mInUse = true; +#endif + } +#if !defined NDEBUG + ~Debug() { mInUse = false; } + bool mInUse; +#endif +#if DUMP_NAV_CACHE + CachedFrame* base() const; + void print() const; + bool validate(const CachedNode* ) const; + char mFrameName[256]; +#endif + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedHistory.cpp b/Source/WebKit/android/nav/CachedHistory.cpp new file mode 100644 index 0000000..9066412 --- /dev/null +++ b/Source/WebKit/android/nav/CachedHistory.cpp @@ -0,0 +1,187 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "CachedFrame.h" +#include "CachedNode.h" +#if DUMP_NAV_CACHE +#include "CachedRoot.h" +#endif + +#include "CachedHistory.h" + +namespace android { + +CachedHistory::CachedHistory() { + memset(this, 0, sizeof(CachedHistory)); // this assume the class has no virtuals + mLastMove = CachedFrame::UNINITIALIZED; + mPriorMove = CachedFrame::UNINITIALIZED; +} + + +void CachedHistory::addToVisited(const CachedNode* node, CachedFrame::Direction direction) +{ + memmove(&mVisited[1], &mVisited[0], sizeof(mVisited) - sizeof(mVisited[0])); + mVisited[0].mNode = node; + mVisited[0].mDirection = direction; +} + +bool CachedHistory::checkVisited(const CachedNode* node, CachedFrame::Direction direction) const +{ + // if the direction is unchanged and we've already visited this node, don't visit it again + int index = 0; + while (index < NAVIGATION_VISIT_DEPTH - 1) { + if (direction != mVisited[index].mDirection) + break; + index++; // compare with last direction, previous to last node (where the arrow took us from) + if (node == mVisited[index].mNode) + return false; + } + return true; +} + +void CachedHistory::pinMaxMin(const WebCore::IntRect& viewBounds) +{ + if (mMinWorkingHorizontal < viewBounds.y() || + mMinWorkingHorizontal >= viewBounds.bottom()) + mMinWorkingHorizontal = viewBounds.y(); + if (mMaxWorkingHorizontal > viewBounds.bottom() || + mMaxWorkingHorizontal <= viewBounds.y()) + mMaxWorkingHorizontal = viewBounds.bottom(); + if (mMinWorkingVertical < viewBounds.x() || + mMinWorkingVertical >= viewBounds.right()) + mMinWorkingVertical = viewBounds.x(); + if (mMaxWorkingVertical > viewBounds.right() || + mMaxWorkingVertical <= viewBounds.x()) + mMaxWorkingVertical = viewBounds.right(); +} + +void CachedHistory::reset() +{ + memset(mVisited, 0, sizeof(mVisited)); +// mLastScroll = 0; + mPriorBounds = WebCore::IntRect(0, 0, 0, 0); + mDirectionChange = false; + mDidFirstLayout = false; + mPriorMove = mLastMove = CachedFrame::UNINITIALIZED; + mMinWorkingHorizontal = mMinWorkingVertical = INT_MIN; + mMaxWorkingHorizontal = mMaxWorkingVertical = INT_MAX; +} + +void CachedHistory::setWorking(CachedFrame::Direction newMove, + const CachedFrame* cursorFrame, const CachedNode* cursor, + const WebCore::IntRect& viewBounds) +{ + CachedFrame::Direction lastAxis = (CachedFrame::Direction) (mLastMove & ~CachedFrame::RIGHT_DOWN); // up, left or uninitialized + CachedFrame::Direction newAxis = (CachedFrame::Direction) (newMove & ~CachedFrame::RIGHT_DOWN); + bool change = newAxis != lastAxis; + mDirectionChange = change && mLastMove != CachedFrame::UNINITIALIZED; + if (cursor != NULL || mLastMove != CachedFrame::UNINITIALIZED) { + mPriorMove = mLastMove; + mLastMove = newMove; + } + const WebCore::IntRect* navBounds = &mNavBounds; + if (cursor != NULL) { + WebCore::IntRect cursorBounds = cursor->bounds(cursorFrame); + if (cursorBounds.isEmpty() == false) + mNavBounds = cursorBounds; + } + if (change) { // uninitialized or change in direction + if (lastAxis != CachedFrame::LEFT && navBounds->height() > 0) { + mMinWorkingHorizontal = navBounds->y(); + mMaxWorkingHorizontal = navBounds->bottom(); + } + if (lastAxis != CachedFrame::UP && navBounds->width() > 0) { + mMinWorkingVertical = navBounds->x(); + mMaxWorkingVertical = navBounds->right(); + } + } + pinMaxMin(viewBounds); +} + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_BOOL(field) \ + DUMP_NAV_LOGD("// bool " #field "=%s;\n", b->field ? "true" : "false") + +#define DEBUG_PRINT_RECT(field) \ + { const WebCore::IntRect& r = b->field; \ + DUMP_NAV_LOGD("// IntRect " #field "={%d, %d, %d, %d};\n", \ + r.x(), r.y(), r.width(), r.height()); } + +CachedHistory* CachedHistory::Debug::base() const { + CachedHistory* nav = (CachedHistory*) ((char*) this - OFFSETOF(CachedHistory, mDebug)); + return nav; +} + +const char* CachedHistory::Debug::direction(CachedFrame::Direction d) const +{ + switch (d) { + case CachedFrame::LEFT: return "LEFT"; break; + case CachedFrame::RIGHT: return "RIGHT"; break; + case CachedFrame::UP: return "UP"; break; + case CachedFrame::DOWN: return "DOWN"; break; + default: return "UNINITIALIZED"; + } +} + +void CachedHistory::Debug::print(CachedRoot* root) const +{ + CachedHistory* b = base(); + DUMP_NAV_LOGD("// Visited mVisited[]={\n"); + for (size_t i = 0; i < NAVIGATION_VISIT_DEPTH; i++) { + const Visited& visit = b->mVisited[i]; + const CachedNode* node = visit.mNode; + int index = root != NULL && root->CachedFrame::mDebug.validate(node) ? + node->index() : -1; + DUMP_NAV_LOGD(" // { 0x%p (%d), %s },\n", node, index, direction(visit.mDirection)); + } + DUMP_NAV_LOGD("// };\n"); +// DUMP_NAV_LOGD("// int mLastScroll=%d;\n", b->mLastScroll); + DEBUG_PRINT_RECT(mMouseBounds); + DEBUG_PRINT_RECT(mNavBounds); + DEBUG_PRINT_RECT(mPriorBounds); + DEBUG_PRINT_BOOL(mDirectionChange); + DEBUG_PRINT_BOOL(mDidFirstLayout); + DUMP_NAV_LOGD("// CachedFrame::Direction mLastMove=%s, mPriorMove=%s;\n", + direction(b->mLastMove), direction(b->mPriorMove)); + int max = b->mMaxWorkingHorizontal; + DUMP_NAV_LOGD("static int TEST_MAX_H = %d;\n", max); + int min = b->mMinWorkingHorizontal; + if (min == INT_MIN) + min++; + DUMP_NAV_LOGD("static int TEST_MIN_H = %d;\n", min); + max = b->mMaxWorkingVertical; + DUMP_NAV_LOGD("static int TEST_MAX_V = %d;\n", max); + min = b->mMinWorkingVertical; + if (min == INT_MIN) + min++; + DUMP_NAV_LOGD("static int TEST_MIN_V = %d;\n", min); + DUMP_NAV_LOGD("\n"); +} + +#endif + +} diff --git a/Source/WebKit/android/nav/CachedHistory.h b/Source/WebKit/android/nav/CachedHistory.h new file mode 100644 index 0000000..e8c1ad9 --- /dev/null +++ b/Source/WebKit/android/nav/CachedHistory.h @@ -0,0 +1,89 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedHistory_H +#define CachedHistory_H + +#include "CachedFrame.h" + +#define NAVIGATION_VISIT_DEPTH 8 // the number of nodes last visited -- used to detect ping-ponging (number should be tuned) + +namespace android { + +class CachedRoot; + +// CachedHistory is maintained even if DOM is rebuilt by running script. +// It uses blind pointers for comparison in the previously visited nodes. +class CachedHistory { +public: + CachedHistory(); + void addToVisited(const CachedNode* , CachedFrame::Direction ); + bool checkVisited(const CachedNode* , CachedFrame::Direction ) const; + bool didFirstLayout() const { return mDidFirstLayout; } + bool directionChange() const { return mDirectionChange; } + int minWorkingHorizontal() const { return mMinWorkingHorizontal; } + int minWorkingVertical() const { return mMinWorkingVertical; } + int maxWorkingHorizontal() const { return mMaxWorkingHorizontal; } + int maxWorkingVertical() const { return mMaxWorkingVertical; } + const WebCore::IntRect& navBounds() const { return mNavBounds; } + const WebCore::IntRect& priorBounds() const { return mPriorBounds; } + void setDidFirstLayout(bool did) { mDidFirstLayout = did; } + void setMouseBounds(const WebCore::IntRect& loc) { mMouseBounds = loc; } + void setNavBounds(const WebCore::IntRect& loc) { mNavBounds = loc; } + void setWorking(CachedFrame::Direction , const CachedFrame* , + const CachedNode* , const WebCore::IntRect& viewBounds); + void reset(); +private: + void pinMaxMin(const WebCore::IntRect& viewBounds); + struct Visited { + const CachedNode* mNode; + CachedFrame::Direction mDirection; + } mVisited[NAVIGATION_VISIT_DEPTH]; + WebCore::IntRect mMouseBounds; // constricted bounds, if cursor ring is partially visible + WebCore::IntRect mNavBounds; // cursor ring bounds plus optional keystroke movement + WebCore::IntRect mPriorBounds; // prior chosen cursor ring (for reversing narrowing) + bool mDirectionChange; + bool mDidFirstLayout; // set true when page is newly laid out + CachedFrame::Direction mLastMove; + CachedFrame::Direction mPriorMove; + int mMinWorkingHorizontal; + int mMaxWorkingHorizontal; + int mMinWorkingVertical; + int mMaxWorkingVertical; + friend class CachedRoot; +#if DUMP_NAV_CACHE +public: + class Debug { +public: + CachedHistory* base() const; + const char* direction(CachedFrame::Direction d) const; + void print(CachedRoot* ) const; + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedInput.cpp b/Source/WebKit/android/nav/CachedInput.cpp new file mode 100644 index 0000000..a6a57ef --- /dev/null +++ b/Source/WebKit/android/nav/CachedInput.cpp @@ -0,0 +1,100 @@ +/* + * Copyright 2009, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "CachedInput.h" + +namespace android { + +void CachedInput::init() { + bzero(this, sizeof(CachedInput)); + mName = WTF::String(); +} + +void CachedInput::setTypeFromElement(WebCore::HTMLInputElement* element) +{ + ASSERT(element); + + if (element->isPasswordField()) + mType = PASSWORD; + else if (element->isSearchField()) + mType = SEARCH; + else if (element->isEmailField()) + mType = EMAIL; + else if (element->isNumberField()) + mType = NUMBER; + else if (element->isTelephoneField()) + mType = TELEPHONE; + else if (element->isURLField()) + mType = URL; + else + mType = NORMAL_TEXT_FIELD; +} + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_BOOL(field) \ + DUMP_NAV_LOGD("// bool " #field "=%s;\n", b->field ? "true" : "false") + +CachedInput* CachedInput::Debug::base() const { + CachedInput* nav = (CachedInput*) ((char*) this - OFFSETOF(CachedInput, mDebug)); + return nav; +} + +static void printWebCoreString(const char* label, + const WTF::String& string) { + char scratch[256]; + size_t index = snprintf(scratch, sizeof(scratch), label); + const UChar* ch = string.characters(); + while (ch && *ch && index < sizeof(scratch)) { + UChar c = *ch++; + if (c < ' ' || c >= 0x7f) c = ' '; + scratch[index++] = c; + } + DUMP_NAV_LOGD("%.*s\"\n", index, scratch); +} + +void CachedInput::Debug::print() const +{ + CachedInput* b = base(); + DEBUG_PRINT_BOOL(mAutoComplete); + DUMP_NAV_LOGD("// void* mForm=%p;\n", b->mForm); + printWebCoreString("// char* mName=\"", b->mName); + DUMP_NAV_LOGD("// int mMaxLength=%d;\n", b->mMaxLength); + DUMP_NAV_LOGD("// int mPaddingLeft=%d;\n", b->mPaddingLeft); + DUMP_NAV_LOGD("// int mPaddingTop=%d;\n", b->mPaddingTop); + DUMP_NAV_LOGD("// int mPaddingRight=%d;\n", b->mPaddingRight); + DUMP_NAV_LOGD("// int mPaddingBottom=%d;\n", b->mPaddingBottom); + DUMP_NAV_LOGD("// float mTextSize=%f;\n", b->mTextSize); + DUMP_NAV_LOGD("// int mLineHeight=%d;\n", b->mLineHeight); + DUMP_NAV_LOGD("// Type mType=%d;\n", b->mType); + DEBUG_PRINT_BOOL(mIsRtlText); + DEBUG_PRINT_BOOL(mIsTextField); + DEBUG_PRINT_BOOL(mIsTextArea); +} + +#endif + +} diff --git a/Source/WebKit/android/nav/CachedInput.h b/Source/WebKit/android/nav/CachedInput.h new file mode 100644 index 0000000..f7f9eea --- /dev/null +++ b/Source/WebKit/android/nav/CachedInput.h @@ -0,0 +1,112 @@ +/* + * Copyright 2009, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedInput_H +#define CachedInput_H + +#include "CachedDebug.h" +#include "HTMLInputElement.h" +#include "PlatformString.h" + +namespace android { + +class CachedInput { +public: + CachedInput() { + // Initiaized to 0 in its array, so nothing to do in the + // constructor + } + + enum Type { + NONE = -1, + NORMAL_TEXT_FIELD = 0, + TEXT_AREA = 1, + PASSWORD = 2, + SEARCH = 3, + EMAIL = 4, + NUMBER = 5, + TELEPHONE = 6, + URL = 7 + }; + + bool autoComplete() const { return mAutoComplete; } + void* formPointer() const { return mForm; } + void init(); + void setTypeFromElement(WebCore::HTMLInputElement*); + Type getType() const { return mType; } + bool isRtlText() const { return mIsRtlText; } + bool isTextField() const { return mIsTextField; } + bool isTextArea() const { return mIsTextArea; } + int lineHeight() const { return mLineHeight; } + int maxLength() const { return mMaxLength; }; + const WTF::String& name() const { return mName; } + int paddingBottom() const { return mPaddingBottom; } + int paddingLeft() const { return mPaddingLeft; } + int paddingRight() const { return mPaddingRight; } + int paddingTop() const { return mPaddingTop; } + void setAutoComplete(bool autoComplete) { mAutoComplete = autoComplete; } + void setFormPointer(void* form) { mForm = form; } + void setIsRtlText(bool isRtlText) { mIsRtlText = isRtlText; } + void setIsTextField(bool isTextField) { mIsTextField = isTextField; } + void setIsTextArea(bool isTextArea) { mIsTextArea = isTextArea; } + void setLineHeight(int height) { mLineHeight = height; } + void setMaxLength(int maxLength) { mMaxLength = maxLength; } + void setName(const WTF::String& name) { mName = name; } + void setPaddingBottom(int bottom) { mPaddingBottom = bottom; } + void setPaddingLeft(int left) { mPaddingLeft = left; } + void setPaddingRight(int right) { mPaddingRight = right; } + void setPaddingTop(int top) { mPaddingTop = top; } + void setTextSize(float textSize) { mTextSize = textSize; } + float textSize() const { return mTextSize; } + +private: + + void* mForm; + int mLineHeight; + int mMaxLength; + WTF::String mName; + int mPaddingBottom; + int mPaddingLeft; + int mPaddingRight; + int mPaddingTop; + float mTextSize; + Type mType; + bool mAutoComplete : 1; + bool mIsRtlText : 1; + bool mIsTextField : 1; + bool mIsTextArea : 1; +#if DUMP_NAV_CACHE +public: + class Debug { +public: + CachedInput* base() const; + void print() const; + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedLayer.cpp b/Source/WebKit/android/nav/CachedLayer.cpp new file mode 100644 index 0000000..299f2d1 --- /dev/null +++ b/Source/WebKit/android/nav/CachedLayer.cpp @@ -0,0 +1,221 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" + +#include "CachedLayer.h" +#include "FloatRect.h" +#include "LayerAndroid.h" + +namespace android { + +#if USE(ACCELERATED_COMPOSITING) + +IntRect CachedLayer::adjustBounds(const LayerAndroid* root, + const IntRect& bounds) const +{ + const LayerAndroid* aLayer = layer(root); + if (!aLayer) { + DBG_NAV_LOGD("no layer in root=%p uniqueId=%d", root, mUniqueId); +#if DUMP_NAV_CACHE + if (root) + mDebug.printRootLayerAndroid(root); +#endif + return bounds; + } + FloatRect temp = bounds; + // First, remove the original offset from the bounds. + temp.move(-mOffset.x(), -mOffset.y()); + + // Next, add in the new position of the layer (could be different due to a + // fixed position layer). + FloatPoint position = getGlobalPosition(aLayer); + temp.move(position.x(), position.y()); + + // Add in any layer translation. + // FIXME: Should use bounds() and apply the entire transformation matrix. + const FloatPoint& translation = aLayer->translation(); + temp.move(translation.x(), translation.y()); + + SkRect clip; + aLayer->bounds(&clip); + + // Do not try to traverse the parent chain if this is the root as the parent + // will not be a LayerAndroid. + if (aLayer != root) { + LayerAndroid* parent = static_cast<LayerAndroid*>(aLayer->getParent()); + while (parent) { + SkRect pClip; + parent->bounds(&pClip); + + // Move our position into our parent's coordinate space. + clip.offset(pClip.fLeft, pClip.fTop); + // Clip our visible rectangle to the parent. + clip.intersect(pClip); + + // Stop at the root. + if (parent == root) + break; + parent = static_cast<LayerAndroid*>(parent->getParent()); + } + } + + // Intersect the result with the visible clip. + temp.intersect(clip); + + IntRect result = enclosingIntRect(temp); + + DBG_NAV_LOGV("root=%p aLayer=%p [%d]" + " bounds=(%d,%d,w=%d,h=%d) trans=(%g,%g) pos=(%f,%f)" + " offset=(%d,%d)" + " result=(%d,%d,w=%d,h=%d)", + root, aLayer, aLayer->uniqueId(), + bounds.x(), bounds.y(), bounds.width(), bounds.height(), + translation.x(), translation.y(), position.x(), position.y(), + mOffset.x(), mOffset.y(), + result.x(), result.y(), result.width(), result.height()); + return result; +} + +FloatPoint CachedLayer::getGlobalPosition(const LayerAndroid* aLayer) const +{ + SkPoint result = aLayer->getPosition(); + const SkLayer* parent = aLayer->getParent(); + while (parent) { + result += parent->getPosition(); + DBG_NAV_LOGV("result=(%g,%g) parent=%p [%d]", result.fX, result.fY, + parent, ((LayerAndroid*) parent)->uniqueId()); + parent = parent->getParent(); + } + return result; +} + +const LayerAndroid* CachedLayer::layer(const LayerAndroid* root) const +{ + if (!root) + return 0; + return root->findById(mUniqueId); +} + +// return bounds relative to the layer as recorded when walking the dom +IntRect CachedLayer::localBounds(const LayerAndroid* root, + const IntRect& bounds) const +{ + IntRect temp = bounds; + // Remove the original offset from the bounds. + temp.move(-mOffset.x(), -mOffset.y()); + +#if DEBUG_NAV_UI + const LayerAndroid* aLayer = layer(root); + DBG_NAV_LOGD("aLayer=%p [%d] bounds=(%d,%d,w=%d,h=%d) offset=(%d,%d)" + " result=(%d,%d,w=%d,h=%d)", + aLayer, aLayer ? aLayer->uniqueId() : 0, + bounds.x(), bounds.y(), bounds.width(), bounds.height(), + mOffset.x(), mOffset.y(), + temp.x(), temp.y(), temp.width(), temp.height()); +#endif + + return temp; +} + +SkPicture* CachedLayer::picture(const LayerAndroid* root) const +{ + const LayerAndroid* aLayer = layer(root); + if (!aLayer) + return 0; + DBG_NAV_LOGD("root=%p aLayer=%p [%d] picture=%p", + root, aLayer, aLayer->uniqueId(), aLayer->picture()); + return aLayer->picture(); +} + +void CachedLayer::toLocal(const LayerAndroid* root, int* xPtr, int* yPtr) const +{ + const LayerAndroid* aLayer = layer(root); + if (!aLayer) + return; + DBG_NAV_LOGD("root=%p aLayer=%p [%d]", root, aLayer, aLayer->uniqueId()); + SkRect localBounds; + aLayer->bounds(&localBounds); + *xPtr -= localBounds.fLeft; + *yPtr -= localBounds.fTop; +} + +#if DUMP_NAV_CACHE + +CachedLayer* CachedLayer::Debug::base() const { + return (CachedLayer*) ((char*) this - OFFSETOF(CachedLayer, mDebug)); +} + +void CachedLayer::Debug::print() const +{ + CachedLayer* b = base(); + DUMP_NAV_LOGD(" // int mCachedNodeIndex=%d;\n", b->mCachedNodeIndex); + DUMP_NAV_LOGD(" // int mOffset=(%d, %d);\n", + b->mOffset.x(), b->mOffset.y()); + DUMP_NAV_LOGD(" // int mUniqueId=%p;\n", b->mUniqueId); + DUMP_NAV_LOGD("%s\n", ""); +} + +#endif + +#if DUMP_NAV_CACHE + +int CachedLayer::Debug::spaces; + +void CachedLayer::Debug::printLayerAndroid(const LayerAndroid* layer) +{ + ++spaces; + SkRect bounds; + layer->bounds(&bounds); + DBG_NAV_LOGD("%.*s layer=%p [%d] (%g,%g,%g,%g)" + " position=(%g,%g) translation=(%g,%g) anchor=(%g,%g)" + " matrix=(%g,%g) childMatrix=(%g,%g) picture=%p clipped=%s" + " scrollable=%s\n", + spaces, " ", layer, layer->uniqueId(), + bounds.fLeft, bounds.fTop, bounds.width(), bounds.height(), + layer->getPosition().fX, layer->getPosition().fY, + layer->translation().x(), layer->translation().y(), + layer->getAnchorPoint().fX, layer->getAnchorPoint().fY, + layer->getMatrix().getTranslateX(), layer->getMatrix().getTranslateY(), + layer->getChildrenMatrix().getTranslateX(), + layer->getChildrenMatrix().getTranslateY(), + layer->picture(), layer->m_haveClip ? "true" : "false", + layer->contentIsScrollable() ? "true" : "false"); + for (int i = 0; i < layer->countChildren(); i++) + printLayerAndroid(layer->getChild(i)); + --spaces; +} + +void CachedLayer::Debug::printRootLayerAndroid(const LayerAndroid* layer) +{ + spaces = 0; + printLayerAndroid(layer); +} +#endif + +#endif // USE(ACCELERATED_COMPOSITING) + +} + diff --git a/Source/WebKit/android/nav/CachedLayer.h b/Source/WebKit/android/nav/CachedLayer.h new file mode 100644 index 0000000..3d963e0 --- /dev/null +++ b/Source/WebKit/android/nav/CachedLayer.h @@ -0,0 +1,86 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedLayer_H +#define CachedLayer_H + +#include "CachedDebug.h" +#include "IntRect.h" + +class SkPicture; + +namespace WebCore { + class FloatPoint; + class LayerAndroid; +} + +using namespace WebCore; + +namespace android { + +class CachedLayer { +public: +#if USE(ACCELERATED_COMPOSITING) + bool operator<(const CachedLayer& l) const { + return mCachedNodeIndex < l.mCachedNodeIndex; + } + // FIXME: adjustBounds should be renamed globalBounds or toGlobal + IntRect adjustBounds(const LayerAndroid* root, const IntRect& bounds) const; + int cachedNodeIndex() const { return mCachedNodeIndex; } + FloatPoint getGlobalPosition(const LayerAndroid* ) const; + const LayerAndroid* layer(const LayerAndroid* root) const; + IntRect localBounds(const LayerAndroid* root, const IntRect& bounds) const; + SkPicture* picture(const LayerAndroid* root) const; + void toLocal(const LayerAndroid* root, int* xPtr, int* yPtr) const; + void setCachedNodeIndex(int index) { mCachedNodeIndex = index; } + // Set the global position of the layer. This is recorded by the nav cache + // and corresponds to RenderLayer::absoluteBoundingBox() which is in + // document coordinates. This can be different from the global position of + // the layer if the layer is fixed positioned or scrollable. + void setOffset(const IntPoint& offset) { mOffset = offset; } + void setUniqueId(int uniqueId) { mUniqueId = uniqueId; } + int uniqueId() const { return mUniqueId; } +private: + int mCachedNodeIndex; + IntPoint mOffset; + int mUniqueId; + +#if DUMP_NAV_CACHE +public: + class Debug { +public: + CachedLayer* base() const; + void print() const; + static void printLayerAndroid(const LayerAndroid* ); + static void printRootLayerAndroid(const LayerAndroid* ); + static int spaces; + } mDebug; +#endif +#endif // USE(ACCELERATED_COMPOSITING) +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedNode.cpp b/Source/WebKit/android/nav/CachedNode.cpp new file mode 100644 index 0000000..e3ba34d --- /dev/null +++ b/Source/WebKit/android/nav/CachedNode.cpp @@ -0,0 +1,432 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "android_graphics.h" +#include "CachedFrame.h" +#include "CachedHistory.h" +#include "Node.h" +#include "PlatformString.h" + +#include "CachedNode.h" + +namespace android { + +WebCore::IntRect CachedNode::bounds(const CachedFrame* frame) const +{ + return mIsInLayer ? frame->adjustBounds(this, mBounds) : mBounds; +} + +void CachedNode::clearCursor(CachedFrame* parent) +{ + if (isFrame()) { + CachedFrame* child = const_cast<CachedFrame*>(parent->hasFrame(this)); + child->clearCursor(); + } + mIsCursor = false; +} + +bool CachedNode::Clip(const WebCore::IntRect& outer, WebCore::IntRect* inner, + WTF::Vector<WebCore::IntRect>* rings) +{ + if (outer.contains(*inner)) + return true; +// DBG_NAV_LOGD("outer:{%d,%d,%d,%d} does not contain inner:{%d,%d,%d,%d}", +// outer.x(), outer.y(), outer.width(), outer.height(), +// inner->x(), inner->y(), inner->width(), inner->height()); + bool intersects = outer.intersects(*inner); + size_t size = intersects ? rings->size() : 0; + *inner = WebCore::IntRect(0, 0, 0, 0); + if (intersects) { + WebCore::IntRect * const start = rings->begin(); + WebCore::IntRect* ring = start + size - 1; + do { + ring->intersect(outer); + if (ring->isEmpty()) { + if ((size_t) (ring - start) != --size) + *ring = start[size]; + } else + inner->unite(*ring); + } while (ring-- != start); + } + rings->shrink(size); +// DBG_NAV_LOGD("size:%d", size); + return size != 0; +} + +bool CachedNode::clip(const WebCore::IntRect& bounds) +{ + return Clip(bounds, &mBounds, &mCursorRing); +} + + +void CachedNode::cursorRings(const CachedFrame* frame, + WTF::Vector<WebCore::IntRect>* rings) const +{ + rings->clear(); + for (unsigned index = 0; index < mCursorRing.size(); index++) + rings->append(ring(frame, index)); +} + +WebCore::IntRect CachedNode::cursorRingBounds(const CachedFrame* frame) const +{ + int partMax = mNavableRects; + ASSERT(partMax > 0); + WebCore::IntRect bounds = mCursorRing[0]; + for (int partIndex = 1; partIndex < partMax; partIndex++) + bounds.unite(mCursorRing[partIndex]); + bounds.inflate(CURSOR_RING_HIT_TEST_RADIUS); + return mIsInLayer ? frame->adjustBounds(this, bounds) : bounds; +} + +#define OVERLAP 3 + +void CachedNode::fixUpCursorRects(const CachedFrame* frame) +{ + if (mFixedUpCursorRects) + return; + mFixedUpCursorRects = true; + // if the hit-test rect doesn't intersect any other rect, use it + if (mHitBounds != mBounds && mHitBounds.contains(mBounds) && + frame->checkRings(this, mHitBounds)) { + DBG_NAV_LOGD("use mHitBounds (%d,%d,%d,%d)", mHitBounds.x(), + mHitBounds.y(), mHitBounds.width(), mHitBounds.height()); + mUseHitBounds = true; + return; + } + if (mNavableRects <= 1) + return; + // if there is more than 1 rect, and the bounds doesn't intersect + // any other cursor ring bounds, use it + IntRect sloppyBounds = mBounds; + sloppyBounds.inflate(2); // give it a couple of extra pixels + if (frame->checkRings(this, sloppyBounds)) { + DBG_NAV_LOGD("use mBounds (%d,%d,%d,%d)", mBounds.x(), + mBounds.y(), mBounds.width(), mBounds.height()); + mUseBounds = true; + return; + } +#if DEBUG_NAV_UI + { + WebCore::IntRect* boundsPtr = mCursorRing.begin() - 1; + const WebCore::IntRect* const boundsEnd = mCursorRing.begin() + mCursorRing.size(); + while (++boundsPtr < boundsEnd) + LOGD("%s %d:(%d, %d, %d, %d)\n", __FUNCTION__, boundsPtr - mCursorRing.begin(), + boundsPtr->x(), boundsPtr->y(), boundsPtr->width(), boundsPtr->height()); + } +#endif + // q: need to know when rects are for drawing and hit-testing, but not mouse down calcs? + bool again; + do { + again = false; + size_t size = mCursorRing.size(); + WebCore::IntRect* unitBoundsPtr = mCursorRing.begin() - 1; + const WebCore::IntRect* const unitBoundsEnd = mCursorRing.begin() + size; + while (++unitBoundsPtr < unitBoundsEnd) { + // any other unitBounds to the left or right of this one? + int unitTop = unitBoundsPtr->y(); + int unitBottom = unitBoundsPtr->bottom(); + int unitLeft = unitBoundsPtr->x(); + int unitRight = unitBoundsPtr->right(); + WebCore::IntRect* testBoundsPtr = mCursorRing.begin() - 1; + while (++testBoundsPtr < unitBoundsEnd) { + if (unitBoundsPtr == testBoundsPtr) + continue; + int testTop = testBoundsPtr->y(); + int testBottom = testBoundsPtr->bottom(); + int testLeft = testBoundsPtr->x(); + int testRight = testBoundsPtr->right(); + int candidateTop = unitTop > testTop ? unitTop : testTop; + int candidateBottom = unitBottom < testBottom ? unitBottom : testBottom; + int candidateLeft = unitRight < testLeft ? unitRight : testRight; + int candidateRight = unitRight > testLeft ? unitLeft : testLeft; + bool leftRight = true; + if (candidateTop + OVERLAP >= candidateBottom || + candidateLeft + OVERLAP >= candidateRight) { + candidateTop = unitBottom < testTop ? unitBottom : testBottom; + candidateBottom = unitBottom > testTop ? unitTop : testTop; + candidateLeft = unitLeft > testLeft ? unitLeft : testLeft; + candidateRight = unitRight < testRight ? unitRight : testRight; + if (candidateTop + OVERLAP >= candidateBottom || + candidateLeft + OVERLAP >= candidateRight) + continue; + leftRight = false; + } + // construct candidate to add + WebCore::IntRect candidate = WebCore::IntRect(candidateLeft, candidateTop, + candidateRight - candidateLeft, candidateBottom - candidateTop); + // does a different unit bounds intersect the candidate? if so, don't add + WebCore::IntRect* checkBoundsPtr = mCursorRing.begin() - 1; + while (++checkBoundsPtr < unitBoundsEnd) { + if (checkBoundsPtr->intersects(candidate) == false) + continue; + if (leftRight) { + if (candidateTop >= checkBoundsPtr->y() && + candidateBottom > checkBoundsPtr->bottom()) + candidateTop = checkBoundsPtr->bottom(); + else if (candidateTop < checkBoundsPtr->y() && + candidateBottom <= checkBoundsPtr->bottom()) + candidateBottom = checkBoundsPtr->y(); + else + goto nextCheck; + } else { + if (candidateLeft >= checkBoundsPtr->x() && + candidateRight > checkBoundsPtr->right()) + candidateLeft = checkBoundsPtr->right(); + else if (candidateLeft < checkBoundsPtr->x() && + candidateRight <= checkBoundsPtr->right()) + candidateRight = checkBoundsPtr->x(); + else + goto nextCheck; + } + } + candidate = WebCore::IntRect(candidateLeft, candidateTop, + candidateRight - candidateLeft, candidateBottom - candidateTop); + ASSERT(candidate.isEmpty() == false); +#if DEBUG_NAV_UI + LOGD("%s %d:(%d, %d, %d, %d)\n", __FUNCTION__, mCursorRing.size(), + candidate.x(), candidate.y(), candidate.width(), candidate.height()); +#endif + mCursorRing.append(candidate); + again = true; + goto tryAgain; + nextCheck: + continue; + } + } +tryAgain: + ; + } while (again); +} + + +void CachedNode::hideCursor(CachedFrame* parent) +{ + if (isFrame()) { + CachedFrame* child = const_cast<CachedFrame*>(parent->hasFrame(this)); + child->hideCursor(); + } + mIsHidden = true; +} + +WebCore::IntRect CachedNode::hitBounds(const CachedFrame* frame) const +{ + return mIsInLayer ? frame->adjustBounds(this, mHitBounds) : mHitBounds; +} + +void CachedNode::init(WebCore::Node* node) +{ + bzero(this, sizeof(CachedNode)); + mExport = WTF::String(); + mNode = node; + mParentIndex = mDataIndex = -1; + mType = android::NORMAL_CACHEDNODETYPE; +} + +bool CachedNode::isTextField(const CachedFrame* frame) const +{ + const CachedInput* input = frame->textInput(this); + return input ? input->isTextField() : false; +} + +void CachedNode::localCursorRings(const CachedFrame* frame, + WTF::Vector<WebCore::IntRect>* rings) const +{ + rings->clear(); + for (unsigned index = 0; index < mCursorRing.size(); index++) + rings->append(localRing(frame, index)); +} + +WebCore::IntRect CachedNode::localBounds(const CachedFrame* frame) const +{ + return mIsInLayer ? frame->localBounds(this, mBounds) : mBounds; +} + +WebCore::IntRect CachedNode::localHitBounds(const CachedFrame* frame) const +{ + return mIsInLayer ? frame->localBounds(this, mHitBounds) : mHitBounds; +} + +WebCore::IntRect CachedNode::localRing(const CachedFrame* frame, + size_t part) const +{ + const WebCore::IntRect& rect = mCursorRing.at(part); + return mIsInLayer ? frame->localBounds(this, rect) : rect; +} + +void CachedNode::move(int x, int y) +{ + mBounds.move(x, y); + // mHitTestBounds will be moved by caller + WebCore::IntRect* first = mCursorRing.begin(); + WebCore::IntRect* last = first + mCursorRing.size(); + --first; + while (++first != last) + first->move(x, y); +} + +bool CachedNode::partRectsContains(const CachedNode* other) const +{ + int outerIndex = 0; + int outerMax = mNavableRects; + int innerMax = other->mNavableRects; + do { + const WebCore::IntRect& outerBounds = mCursorRing[outerIndex]; + int innerIndex = 0; + do { + const WebCore::IntRect& innerBounds = other->mCursorRing[innerIndex]; + if (innerBounds.contains(outerBounds)) + return true; + } while (++innerIndex < innerMax); + } while (++outerIndex < outerMax); + return false; +} + +WebCore::IntRect CachedNode::ring(const CachedFrame* frame, size_t part) const +{ + const WebCore::IntRect& rect = mCursorRing.at(part); + return mIsInLayer ? frame->adjustBounds(this, rect) : rect; +} + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_BOOL(field) \ + DUMP_NAV_LOGD("// bool " #field "=%s;\n", b->field ? "true" : "false") + +#define DEBUG_PRINT_RECT(field) \ + { const WebCore::IntRect& r = b->field; \ + DUMP_NAV_LOGD("// IntRect " #field "={%d, %d, %d, %d};\n", \ + r.x(), r.y(), r.width(), r.height()); } + +CachedNode* CachedNode::Debug::base() const { + CachedNode* nav = (CachedNode*) ((char*) this - OFFSETOF(CachedNode, mDebug)); + return nav; +} + +const char* CachedNode::Debug::condition(Condition t) const +{ + switch (t) { + case NOT_REJECTED: return "NOT_REJECTED"; break; + case BUTTED_UP: return "BUTTED_UP"; break; + case CENTER_FURTHER: return "CENTER_FURTHER"; break; + case CLOSER: return "CLOSER"; break; + case CLOSER_IN_CURSOR: return "CLOSER_IN_CURSOR"; break; + case CLOSER_OVERLAP: return "CLOSER_OVERLAP"; break; + case CLOSER_TOP: return "CLOSER_TOP"; break; + case NAVABLE: return "NAVABLE"; break; + case FURTHER: return "FURTHER"; break; + case IN_UMBRA: return "IN_UMBRA"; break; + case IN_WORKING: return "IN_WORKING"; break; + case LEFTMOST: return "LEFTMOST"; break; + case OVERLAP_OR_EDGE_FURTHER: return "OVERLAP_OR_EDGE_FURTHER"; break; + case PREFERRED: return "PREFERRED"; break; + case ANCHOR_IN_ANCHOR: return "ANCHOR_IN_ANCHOR"; break; + case BEST_DIRECTION: return "BEST_DIRECTION"; break; + case CHILD: return "CHILD"; break; + case DISABLED: return "DISABLED"; break; + case HIGHER_TAB_INDEX: return "HIGHER_TAB_INDEX"; break; + case IN_CURSOR: return "IN_CURSOR"; break; + case IN_CURSOR_CHILDREN: return "IN_CURSOR_CHILDREN"; break; + case NOT_ENCLOSING_CURSOR: return "NOT_ENCLOSING_CURSOR"; break; + case NOT_CURSOR_NODE: return "NOT_CURSOR_NODE"; break; + case OUTSIDE_OF_BEST: return "OUTSIDE_OF_BEST"; break; + case OUTSIDE_OF_ORIGINAL: return "OUTSIDE_OF_ORIGINAL"; break; + default: return "???"; + } +} + +const char* CachedNode::Debug::type(android::CachedNodeType t) const +{ + switch (t) { + case NORMAL_CACHEDNODETYPE: return "NORMAL"; break; + case ADDRESS_CACHEDNODETYPE: return "ADDRESS"; break; + case EMAIL_CACHEDNODETYPE: return "EMAIL"; break; + case PHONE_CACHEDNODETYPE: return "PHONE"; break; + case ANCHOR_CACHEDNODETYPE: return "ANCHOR"; break; + case AREA_CACHEDNODETYPE: return "AREA"; break; + case FRAME_CACHEDNODETYPE: return "FRAME"; break; + case PLUGIN_CACHEDNODETYPE: return "PLUGIN"; break; + case TEXT_INPUT_CACHEDNODETYPE: return "INPUT"; break; + case SELECT_CACHEDNODETYPE: return "SELECT"; break; + case CONTENT_EDITABLE_CACHEDNODETYPE: return "CONTENT_EDITABLE"; break; + default: return "???"; + } +} + +void CachedNode::Debug::print() const +{ + CachedNode* b = base(); + char scratch[256]; + size_t index = snprintf(scratch, sizeof(scratch), "// char* mExport=\""); + const UChar* ch = b->mExport.characters(); + while (ch && *ch && index < sizeof(scratch)) { + UChar c = *ch++; + if (c < ' ' || c >= 0x7f) c = ' '; + scratch[index++] = c; + } + DUMP_NAV_LOGD("%.*s\"\n", index, scratch); + DEBUG_PRINT_RECT(mBounds); + DEBUG_PRINT_RECT(mHitBounds); + DEBUG_PRINT_RECT(mOriginalAbsoluteBounds); + const WTF::Vector<WebCore::IntRect>* rects = &b->mCursorRing; + size_t size = rects->size(); + DUMP_NAV_LOGD("// IntRect cursorRings={ // size=%d\n", size); + for (size_t i = 0; i < size; i++) { + const WebCore::IntRect& rect = (*rects)[i]; + DUMP_NAV_LOGD(" // {%d, %d, %d, %d}, // %d\n", rect.x(), rect.y(), + rect.width(), rect.height(), i); + } + DUMP_NAV_LOGD("// };\n"); + DUMP_NAV_LOGD("// void* mNode=%p; // (%d) \n", b->mNode, mNodeIndex); + DUMP_NAV_LOGD("// void* mParentGroup=%p; // (%d) \n", b->mParentGroup, mParentGroupIndex); + DUMP_NAV_LOGD("// int mDataIndex=%d;\n", b->mDataIndex); + DUMP_NAV_LOGD("// int mIndex=%d;\n", b->mIndex); + DUMP_NAV_LOGD("// int mNavableRects=%d;\n", b->mNavableRects); + DUMP_NAV_LOGD("// int mParentIndex=%d;\n", b->mParentIndex); + DUMP_NAV_LOGD("// int mTabIndex=%d;\n", b->mTabIndex); + DUMP_NAV_LOGD("// int mColorIndex=%d;\n", b->mColorIndex); + DUMP_NAV_LOGD("// Condition mCondition=%s;\n", condition(b->mCondition)); + DUMP_NAV_LOGD("// Type mType=%s;\n", type(b->mType)); + DEBUG_PRINT_BOOL(mClippedOut); + DEBUG_PRINT_BOOL(mDisabled); + DEBUG_PRINT_BOOL(mFixedUpCursorRects); + DEBUG_PRINT_BOOL(mHasCursorRing); + DEBUG_PRINT_BOOL(mHasMouseOver); + DEBUG_PRINT_BOOL(mIsCursor); + DEBUG_PRINT_BOOL(mIsFocus); + DEBUG_PRINT_BOOL(mIsHidden); + DEBUG_PRINT_BOOL(mIsInLayer); + DEBUG_PRINT_BOOL(mIsParentAnchor); + DEBUG_PRINT_BOOL(mIsTransparent); + DEBUG_PRINT_BOOL(mIsUnclipped); + DEBUG_PRINT_BOOL(mLast); + DEBUG_PRINT_BOOL(mUseBounds); + DEBUG_PRINT_BOOL(mUseHitBounds); + DEBUG_PRINT_BOOL(mSingleImage); +} + +#endif + +} diff --git a/Source/WebKit/android/nav/CachedNode.h b/Source/WebKit/android/nav/CachedNode.h new file mode 100644 index 0000000..f9bcbed --- /dev/null +++ b/Source/WebKit/android/nav/CachedNode.h @@ -0,0 +1,247 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedNode_H +#define CachedNode_H + +#include "CachedDebug.h" +#include "CachedNodeType.h" +#include "IntRect.h" +#include "PlatformString.h" + +#include <wtf/Vector.h> +#include <wtf/text/AtomicString.h> + +class SkPicture; + +namespace WebCore { + class Node; +} + +namespace android { + +class CachedFrame; +class CachedRoot; + +class CachedNode { +public: +// Nodes are rejected because either they are spacially not the best (first set) +// or because they have the wrong DOM attribute (in focus, a focused child, etc) +// findClosest() gives only spacially rejected nodes a second chance + enum Condition { // if bigger than 32, increase bitfield size below + // rejections that get a second chance + NOT_REJECTED = 0, + SECOND_CHANCE_START = NOT_REJECTED, // must be first in list + BUTTED_UP, + CENTER_FURTHER, + CLOSER, + CLOSER_IN_CURSOR, + CLOSER_OVERLAP, + CLOSER_TOP, + NAVABLE, + FURTHER, + IN_UMBRA, + IN_WORKING, + LEFTMOST, + NOT_ENCLOSING_CURSOR, + OVERLAP_OR_EDGE_FURTHER, + PREFERRED, // better overlap measure + SECOND_CHANCE_END = PREFERRED, // must be last in list + // rejections that don't get a second chance + ANCHOR_IN_ANCHOR, + BEST_DIRECTION, // can be reached by another direction + CHILD, + DISABLED, + HIGHER_TAB_INDEX, + IN_CURSOR, + IN_CURSOR_CHILDREN, + NOT_CURSOR_NODE, + OUTSIDE_OF_BEST, // containership + OUTSIDE_OF_ORIGINAL, // containership + UNDER_LAYER, + CONDITION_SIZE // FIXME: test that CONDITION_SIZE fits in mCondition + }; + CachedNode() { + // The node is initiaized to 0 in its array, so nothing to do in the + // constructor + } + + WebCore::IntRect bounds(const CachedFrame* ) const; + int childFrameIndex() const { return isFrame() ? mDataIndex : -1; } + void clearCondition() const { mCondition = NOT_REJECTED; } + void clearCursor(CachedFrame* ); + static bool Clip(const WebCore::IntRect& outer, WebCore::IntRect* inner, + WTF::Vector<WebCore::IntRect>* rings); + bool clip(const WebCore::IntRect& ); + bool clippedOut() { return mClippedOut; } + int colorIndex() const { return mColorIndex; } + WebCore::IntRect cursorRingBounds(const CachedFrame* ) const; + void cursorRings(const CachedFrame* , WTF::Vector<WebCore::IntRect>* ) const; + bool disabled() const { return mDisabled; } + const CachedNode* document() const { return &this[-mIndex]; } + void fixUpCursorRects(const CachedFrame* frame); + const WTF::String& getExport() const { return mExport; } + bool hasCursorRing() const { return mHasCursorRing; } + bool hasMouseOver() const { return mHasMouseOver; } + void hideCursor(CachedFrame* ); + WebCore::IntRect hitBounds(const CachedFrame* ) const; + int index() const { return mIndex; } + void init(WebCore::Node* node); + bool isAnchor() const { return mType == ANCHOR_CACHEDNODETYPE; } + bool isContentEditable() const { return mType == CONTENT_EDITABLE_CACHEDNODETYPE; } + bool isCursor() const { return mIsCursor; } + bool isArea() const { return mType == AREA_CACHEDNODETYPE; } + bool isFocus() const { return mIsFocus; } + bool isFrame() const { return mType == FRAME_CACHEDNODETYPE; } + bool isHidden() const { return mIsHidden; } + bool isInLayer() const { return mIsInLayer; } + bool isNavable(const CachedFrame* frame, const WebCore::IntRect& clip) const { + return clip.intersects(bounds(frame)); + } + bool isPlugin() const { return mType == PLUGIN_CACHEDNODETYPE; } + bool isSelect() const { return mType == SELECT_CACHEDNODETYPE; } + bool isSyntheticLink() const { + return mType >= ADDRESS_CACHEDNODETYPE && mType <= PHONE_CACHEDNODETYPE; + } + bool isTextField(const CachedFrame*) const; + bool isTextInput() const { return mType == TEXT_INPUT_CACHEDNODETYPE; } + bool isTransparent() const { return mIsTransparent; } + bool isUnclipped() const { return mIsUnclipped; } + // localXXX functions are used only for drawing cursor rings + WebCore::IntRect localBounds(const CachedFrame* ) const; + void localCursorRings(const CachedFrame* , + WTF::Vector<WebCore::IntRect>* ) const; + WebCore::IntRect localHitBounds(const CachedFrame* ) const; + WebCore::IntRect localRing(const CachedFrame* , size_t part) const; + void move(int x, int y); + int navableRects() const { return mNavableRects; } + void* nodePointer() const { return mNode; } + bool noSecondChance() const { return mCondition > SECOND_CHANCE_END; } + const WebCore::IntRect& originalAbsoluteBounds() const { + return mOriginalAbsoluteBounds; } + const CachedNode* parent() const { return document() + mParentIndex; } + void* parentGroup() const { return mParentGroup; } + int parentIndex() const { return mParentIndex; } + bool partRectsContains(const CachedNode* other) const; + const WebCore::IntRect& rawBounds() const { return mBounds; } + void reset(); + WebCore::IntRect ring(const CachedFrame* , size_t part) const; + const WTF::Vector<WebCore::IntRect>& rings() const { return mCursorRing; } + void setBounds(const WebCore::IntRect& bounds) { mBounds = bounds; } + void setClippedOut(bool clipped) { mClippedOut = clipped; } + void setColorIndex(int index) { mColorIndex = index; } + void setCondition(Condition condition) const { mCondition = condition; } + void setDataIndex(int index) { mDataIndex = index; } + void setDisabled(bool disabled) { mDisabled = disabled; } + void setExport(const WTF::String& exported) { mExport = exported; } + void setHasCursorRing(bool hasRing) { mHasCursorRing = hasRing; } + void setHasMouseOver(bool hasMouseOver) { mHasMouseOver = hasMouseOver; } + void setHitBounds(const WebCore::IntRect& bounds) { mHitBounds = bounds; } + void setOriginalAbsoluteBounds(const WebCore::IntRect& bounds) { + mOriginalAbsoluteBounds = bounds; } + void setIndex(int index) { mIndex = index; } + void setIsCursor(bool isCursor) { mIsCursor = isCursor; } + void setIsFocus(bool isFocus) { mIsFocus = isFocus; } + void setIsInLayer(bool isInLayer) { mIsInLayer = isInLayer; } + void setIsParentAnchor(bool isAnchor) { mIsParentAnchor = isAnchor; } + void setIsTransparent(bool isTransparent) { mIsTransparent = isTransparent; } + void setIsUnclipped(bool unclipped) { mIsUnclipped = unclipped; } + void setLast() { mLast = true; } + void setNavableRects() { mNavableRects = mCursorRing.size(); } + void setParentGroup(void* group) { mParentGroup = group; } + void setParentIndex(int parent) { mParentIndex = parent; } + void setSingleImage(bool single) { mSingleImage = single; } + void setTabIndex(int index) { mTabIndex = index; } + void setType(CachedNodeType type) { mType = type; } + void show() { mIsHidden = false; } + bool singleImage() const { return mSingleImage; } + int tabIndex() const { return mTabIndex; } + int textInputIndex() const { return isTextInput() ? mDataIndex : -1; } + const CachedNode* traverseNextNode() const { return mLast ? NULL : &this[1]; } + bool useBounds() const { return mUseBounds; } + bool useHitBounds() const { return mUseHitBounds; } + bool wantsKeyEvents() const { return isTextInput() || isPlugin() + || isContentEditable() || isFrame(); } +private: + friend class CacheBuilder; + WTF::String mExport; + WebCore::IntRect mBounds; + WebCore::IntRect mHitBounds; + WebCore::IntRect mOriginalAbsoluteBounds; + WTF::Vector<WebCore::IntRect> mCursorRing; + void* mNode; // WebCore::Node*, only used to match pointers + void* mParentGroup; // WebCore::Node*, only used to match pointers + int mDataIndex; // child frame if a frame; input data index; or -1 + int mIndex; // index of itself, to find first in array (document) + int mNavableRects; // FIXME: could be bitfield once I limit max number of rects + int mParentIndex; + int mTabIndex; + int mColorIndex; // index to ring color and other stylable properties + mutable Condition mCondition : 5; // why the node was not chosen on the first pass + CachedNodeType mType : 4; + bool mClippedOut : 1; + bool mDisabled : 1; + bool mFixedUpCursorRects : 1; + bool mHasCursorRing : 1; + bool mHasMouseOver : 1; + bool mIsCursor : 1; + bool mIsFocus : 1; + bool mIsHidden : 1; + bool mIsInLayer : 1; + bool mIsParentAnchor : 1; + bool mIsTransparent : 1; + bool mIsUnclipped : 1; + bool mLast : 1; // true if this is the last node in a group + bool mSingleImage : 1; + bool mUseBounds : 1; + bool mUseHitBounds : 1; +#ifdef BROWSER_DEBUG +public: + WebCore::Node* webCoreNode() const { return (WebCore::Node*) mNode; } + bool mDisplayMeasure; + mutable bool mInCompare; + int mSideDistance; + int mSecondSide; +#endif +#if DEBUG_NAV_UI || DUMP_NAV_CACHE +public: + class Debug { +public: + CachedNode* base() const; + const char* condition(Condition t) const; + void print() const; + const char* type(CachedNodeType t) const; +#if DUMP_NAV_CACHE + int mNodeIndex; + int mParentGroupIndex; +#endif + } mDebug; + friend class CachedNode::Debug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedNodeType.h b/Source/WebKit/android/nav/CachedNodeType.h new file mode 100644 index 0000000..8bc9328 --- /dev/null +++ b/Source/WebKit/android/nav/CachedNodeType.h @@ -0,0 +1,56 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedNodeType_H +#define CachedNodeType_H + +namespace android { + +enum CachedNodeType { + NORMAL_CACHEDNODETYPE, + ADDRESS_CACHEDNODETYPE, + EMAIL_CACHEDNODETYPE, + PHONE_CACHEDNODETYPE, + ANCHOR_CACHEDNODETYPE, + AREA_CACHEDNODETYPE, + FRAME_CACHEDNODETYPE, + PLUGIN_CACHEDNODETYPE, + TEXT_INPUT_CACHEDNODETYPE, + SELECT_CACHEDNODETYPE, + CONTENT_EDITABLE_CACHEDNODETYPE +}; + +enum CachedNodeBits { + NORMAL_CACHEDNODE_BITS = 0, + ADDRESS_CACHEDNODE_BIT = 1 << (ADDRESS_CACHEDNODETYPE - 1), + EMAIL_CACHEDNODE_BIT = 1 << (EMAIL_CACHEDNODETYPE - 1), + PHONE_CACHEDNODE_BIT = 1 << (PHONE_CACHEDNODETYPE - 1), + ALL_CACHEDNODE_BITS = ADDRESS_CACHEDNODE_BIT | EMAIL_CACHEDNODE_BIT + | PHONE_CACHEDNODE_BIT +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/CachedPrefix.h b/Source/WebKit/android/nav/CachedPrefix.h new file mode 100644 index 0000000..73a5c2c --- /dev/null +++ b/Source/WebKit/android/nav/CachedPrefix.h @@ -0,0 +1,53 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedPrefix_H +#define CachedPrefix_H + +#ifndef LOG_TAG +#define LOG_TAG "navcache" +#endif + +#include "config.h" +#include "CachedDebug.h" + +#ifndef _LIBS_CUTILS_LOG_H + #ifdef LOG + #undef LOG + #endif + + #include <utils/Log.h> +#endif + +#define OFFSETOF(type, field) ((char*)&(((type*)1)->field) - (char*)1) // avoids gnu warning + +#ifndef BZERO_DEFINED +#define BZERO_DEFINED +// http://www.opengroup.org/onlinepubs/000095399/functions/bzero.html +// For maximum portability, it is recommended to replace the function call to bzero() as follows: +#define bzero(b,len) (memset((b), '\0', (len)), (void) 0) +#endif + +#endif diff --git a/Source/WebKit/android/nav/CachedRoot.cpp b/Source/WebKit/android/nav/CachedRoot.cpp new file mode 100644 index 0000000..64bf19a --- /dev/null +++ b/Source/WebKit/android/nav/CachedRoot.cpp @@ -0,0 +1,1813 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "CachedPrefix.h" +#include "android_graphics.h" +#include "CachedHistory.h" +#include "CachedInput.h" +#include "CachedLayer.h" +#include "CachedNode.h" +#include "FindCanvas.h" +#include "FloatRect.h" +#include "LayerAndroid.h" +#include "ParseCanvas.h" +#include "SkBitmap.h" +#include "SkBounder.h" +#include "SkPixelRef.h" +#include "SkRegion.h" + +#include "CachedRoot.h" + +#if DEBUG_NAV_UI +#include "wtf/text/CString.h" +#endif + +#define DONT_CENTER_IF_ALREADY_VISIBLE + +using std::min; +using std::max; + +#ifdef DUMP_NAV_CACHE_USING_PRINTF + extern android::Mutex gWriteLogMutex; +#endif + +namespace android { + +class CommonCheck : public SkBounder { +public: + enum Type { + kNo_Type, + kDrawBitmap_Type, + kDrawGlyph_Type, + kDrawPaint_Type, + kDrawPath_Type, + kDrawPicture_Type, + kDrawPoints_Type, + kDrawPosText_Type, + kDrawPosTextH_Type, + kDrawRect_Type, + kDrawSprite_Type, + kDrawText_Type, + kDrawTextOnPath_Type, + kPopLayer_Type, + kPushLayer_Type, + kPushSave_Type + }; + + static bool isTextType(Type t) { + return t == kDrawPosTextH_Type || t == kDrawText_Type; + } + + CommonCheck() : mType(kNo_Type), mAllOpaque(true), mIsOpaque(true) { + setEmpty(); + } + + bool doRect(Type type) { + mType = type; + return doIRect(mUnion); + } + + bool isEmpty() { return mUnion.isEmpty(); } + + bool joinGlyphs(const SkIRect& rect) { + bool isGlyph = mType == kDrawGlyph_Type; + if (isGlyph) + mUnion.join(rect); + return isGlyph; + } + + void setAllOpaque(bool opaque) { mAllOpaque = opaque; } + void setEmpty() { mUnion.setEmpty(); } + void setIsOpaque(bool opaque) { mIsOpaque = opaque; } + void setType(Type type) { mType = type; } + + Type mType; + SkIRect mUnion; + bool mAllOpaque; + bool mIsOpaque; +}; + +#if DEBUG_NAV_UI + static const char* TypeNames[] = { + "kNo_Type", + "kDrawBitmap_Type", + "kDrawGlyph_Type", + "kDrawPaint_Type", + "kDrawPath_Type", + "kDrawPicture_Type", + "kDrawPoints_Type", + "kDrawPosText_Type", + "kDrawPosTextH_Type", + "kDrawRect_Type", + "kDrawSprite_Type", + "kDrawText_Type", + "kDrawTextOnPath_Type", + "kPopLayer_Type", + "kPushLayer_Type", + "kPushSave_Type" + }; +#endif + +#define kMargin 16 +#define kSlop 2 + +class BoundsCanvas : public ParseCanvas { +public: + + BoundsCanvas(CommonCheck* bounder) : mBounder(*bounder) { + mTransparentLayer = 0; + setBounder(bounder); + } + + virtual void drawPaint(const SkPaint& paint) { + mBounder.setType(CommonCheck::kDrawPaint_Type); + INHERITED::drawPaint(paint); + } + + virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[], + const SkPaint& paint) { + mBounder.setType(CommonCheck::kDrawPoints_Type); + INHERITED::drawPoints(mode, count, pts, paint); + } + + virtual void drawRect(const SkRect& rect, const SkPaint& paint) { + mBounder.setType(CommonCheck::kDrawRect_Type); + INHERITED::drawRect(rect, paint); + } + + virtual void drawPath(const SkPath& path, const SkPaint& paint) { + mBounder.setType(CommonCheck::kDrawPath_Type); + INHERITED::drawPath(path, paint); + } + + virtual void commonDrawBitmap(const SkBitmap& bitmap, const SkIRect* rect, + const SkMatrix& matrix, const SkPaint& paint) { + mBounder.setType(CommonCheck::kDrawBitmap_Type); + mBounder.setIsOpaque(bitmap.isOpaque()); + INHERITED::commonDrawBitmap(bitmap, rect, matrix, paint); + } + + virtual void drawSprite(const SkBitmap& bitmap, int left, int top, + const SkPaint* paint) { + mBounder.setType(CommonCheck::kDrawSprite_Type); + mBounder.setIsOpaque(bitmap.isOpaque() && + (!paint || paint->getAlpha() == 255)); + INHERITED::drawSprite(bitmap, left, top, paint); + } + + virtual void drawText(const void* text, size_t byteLength, SkScalar x, + SkScalar y, const SkPaint& paint) { + mBounder.setEmpty(); + mBounder.setType(CommonCheck::kDrawGlyph_Type); + INHERITED::drawText(text, byteLength, x, y, paint); + mBounder.doRect(CommonCheck::kDrawText_Type); + } + + virtual void drawPosText(const void* text, size_t byteLength, + const SkPoint pos[], const SkPaint& paint) { + mBounder.setEmpty(); + mBounder.setType(CommonCheck::kDrawGlyph_Type); + INHERITED::drawPosText(text, byteLength, pos, paint); + if (!mBounder.isEmpty()) + mBounder.doRect(CommonCheck::kDrawPosText_Type); + } + + virtual void drawPosTextH(const void* text, size_t byteLength, + const SkScalar xpos[], SkScalar constY, + const SkPaint& paint) { + mBounder.setEmpty(); + mBounder.setType(CommonCheck::kDrawGlyph_Type); + INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint); + if (mBounder.mUnion.isEmpty()) { + DBG_NAV_LOGD("empty constY=%g", SkScalarToFloat(constY)); + return; + } + SkPaint::FontMetrics metrics; + paint.getFontMetrics(&metrics); + SkPoint upDown[2] = { {xpos[0], constY + metrics.fAscent}, + {xpos[0], constY + metrics.fDescent} }; + const SkMatrix& matrix = getTotalMatrix(); + matrix.mapPoints(upDown, 2); + if (upDown[0].fX == upDown[1].fX) { + mBounder.mUnion.fTop = SkScalarFloor(upDown[0].fY); + mBounder.mUnion.fBottom = SkScalarFloor(upDown[1].fY); + } + mBounder.doRect(CommonCheck::kDrawPosTextH_Type); + } + + virtual void drawTextOnPath(const void* text, size_t byteLength, + const SkPath& path, const SkMatrix* matrix, + const SkPaint& paint) { + mBounder.setEmpty(); + mBounder.setType(CommonCheck::kDrawGlyph_Type); + INHERITED::drawTextOnPath(text, byteLength, path, matrix, paint); + mBounder.doRect(CommonCheck::kDrawTextOnPath_Type); + } + + virtual void drawPicture(SkPicture& picture) { + mBounder.setType(CommonCheck::kDrawPicture_Type); + INHERITED::drawPicture(picture); + } + + virtual int saveLayer(const SkRect* bounds, const SkPaint* paint, + SaveFlags flags) { + int depth = INHERITED::saveLayer(bounds, paint, flags); + if (mTransparentLayer == 0 && paint && paint->getAlpha() < 255) { + mTransparentLayer = depth; + mBounder.setAllOpaque(false); + } + return depth; + } + + virtual void restore() { + mBounder.setType(CommonCheck::kDrawSprite_Type); // for layer draws + int depth = getSaveCount(); + if (depth == mTransparentLayer) { + mTransparentLayer = 0; + mBounder.setAllOpaque(true); + } + INHERITED::restore(); + } + + int mTransparentLayer; + CommonCheck& mBounder; +private: + typedef ParseCanvas INHERITED; +}; + +/* +LeftCheck examines the text in a picture, within a viewable rectangle, +and returns via left() the position of the left edge of the paragraph. +It first looks at the left edge of the test point, then looks above and below +it for more lines of text to determine the div's left edge. +*/ +class LeftCheck : public CommonCheck { +public: + LeftCheck(int x, int y) : mX(x), mY(y), mHitLeft(INT_MAX), + mMostLeft(INT_MAX) { + mHit.set(x - (HIT_SLOP << 1), y - HIT_SLOP, x, y + HIT_SLOP); + mPartial.setEmpty(); + mBounds.setEmpty(); + mPartialType = kNo_Type; + } + + int left() { + if (isTextType(mType)) + doRect(); // process the final line of text + return mMostLeft != INT_MAX ? mMostLeft : mX >> 1; + } + + // FIXME: this is identical to CenterCheck::onIRect() + // refactor so that LeftCheck and CenterCheck inherit common functions + virtual bool onIRect(const SkIRect& rect) { + bool opaqueBitmap = mType == kDrawBitmap_Type && mIsOpaque; + if (opaqueBitmap && rect.contains(mX, mY)) { + mMostLeft = rect.fLeft; + return false; + } + if (joinGlyphs(rect)) // assembles glyphs into a text string + return false; + if (!isTextType(mType) && !opaqueBitmap) + return false; + /* Text on one line may be broken into several parts. Reassemble + the text into a rectangle before considering it. */ + if (rect.fTop < mPartial.fBottom + && rect.fBottom > mPartial.fTop + && mPartial.fRight + JOIN_SLOP_X >= rect.fLeft + && (mPartialType != kDrawBitmap_Type + || mPartial.height() <= rect.height() + JOIN_SLOP_Y)) { + DBG_NAV_LOGD("LeftCheck join mPartial=(%d, %d, %d, %d)" + " rect=(%d, %d, %d, %d)", + mPartial.fLeft, mPartial.fTop, mPartial.fRight, mPartial.fBottom, + rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); + mPartial.join(rect); + return false; + } + if (mPartial.isEmpty() == false) { + doRect(); // process the previous line of text +#if DEBUG_NAV_UI + if (mHitLeft == INT_MAX) + DBG_NAV_LOGD("LeftCheck disabled rect=(%d, %d, %d, %d)", + rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); +#endif + } + mPartial = rect; + mPartialType = mType; + return false; + } + + void doRect() + { + /* Record the outer bounds of the lines of text that intersect the + touch coordinates, given some slop */ + if (SkIRect::Intersects(mPartial, mHit)) { + if (mHitLeft > mPartial.fLeft) + mHitLeft = mPartial.fLeft; + DBG_NAV_LOGD("LeftCheck mHitLeft=%d", mHitLeft); + } else if (mHitLeft == INT_MAX) + return; // wait for intersect success + /* If text is too far away vertically, don't consider it */ + if (!mBounds.isEmpty() && (mPartial.fTop > mBounds.fBottom + HIT_SLOP + || mPartial.fBottom < mBounds.fTop - HIT_SLOP)) { + DBG_NAV_LOGD("LeftCheck stop mPartial=(%d, %d, %d, %d)" + " mBounds=(%d, %d, %d, %d)", + mPartial.fLeft, mPartial.fTop, mPartial.fRight, mPartial.fBottom, + mBounds.fLeft, mBounds.fTop, mBounds.fRight, mBounds.fBottom); + mHitLeft = INT_MAX; // and disable future comparisons + return; + } + /* If the considered text is completely to the left or right of the + touch coordinates, skip it, turn off further detection */ + if (mPartial.fLeft > mX || mPartial.fRight < mX) { + DBG_NAV_LOGD("LeftCheck stop mX=%d mPartial=(%d, %d, %d, %d)", mX, + mPartial.fLeft, mPartial.fTop, mPartial.fRight, mPartial.fBottom); + mHitLeft = INT_MAX; + return; + } + /* record the smallest margins on the left and right */ + if (mMostLeft > mPartial.fLeft) { + DBG_NAV_LOGD("LeftCheck new mMostLeft=%d (old=%d)", mPartial.fLeft, + mMostLeft); + mMostLeft = mPartial.fLeft; + } + if (mBounds.isEmpty()) + mBounds = mPartial; + else if (mPartial.fBottom > mBounds.fBottom) { + DBG_NAV_LOGD("LeftCheck new bottom=%d (old=%d)", mPartial.fBottom, + mBounds.fBottom); + mBounds.fBottom = mPartial.fBottom; + } + } + + static const int JOIN_SLOP_X = 30; // horizontal space between text parts + static const int JOIN_SLOP_Y = 5; // vertical space between text lines + static const int HIT_SLOP = 30; // diameter allowing for tap size + /* const */ SkIRect mHit; // sloppy hit rectangle + SkIRect mBounds; // reference bounds + SkIRect mPartial; // accumulated text bounds, per line + const int mX; // touch location + const int mY; + int mHitLeft; // touched text extremes + int mMostLeft; // paragraph extremes + Type mPartialType; +}; + +/* +CenterCheck examines the text in a picture, within a viewable rectangle, +and returns via center() the optimal amount to scroll in x to display the +paragraph of text. + +The caller of CenterCheck has configured (but not allocated) a bitmap +the height and three times the width of the view. The picture is drawn centered +in the bitmap, so text that would be revealed, if the view was scrolled up to +a view-width to the left or right, is considered. +*/ +class CenterCheck : public CommonCheck { +public: + CenterCheck(int x, int y, int width) : mX(x), mY(y), + mHitLeft(x), mHitRight(x), mMostLeft(INT_MAX), mMostRight(-INT_MAX), + mViewLeft(width), mViewRight(width << 1) { + mHit.set(x - CENTER_SLOP, y - CENTER_SLOP, + x + CENTER_SLOP, y + CENTER_SLOP); + mPartial.setEmpty(); + } + + int center() { + doRect(); // process the final line of text + /* If the touch coordinates aren't near any text, return 0 */ + if (mHitLeft == mHitRight) { + DBG_NAV_LOGD("abort: mHitLeft=%d ==mHitRight", mHitLeft); + return 0; + } + int leftOver = mHitLeft - mViewLeft; + int rightOver = mHitRight - mViewRight; + int center; + /* If the touched text is too large to entirely fit on the screen, + center it. */ + if (leftOver < 0 && rightOver > 0) { + center = (leftOver + rightOver) >> 1; + DBG_NAV_LOGD("overlap: leftOver=%d rightOver=%d center=%d", + leftOver, rightOver, center); + return center; + } + center = (mMostLeft + mMostRight) >> 1; // the paragraph center + if (leftOver > 0 && rightOver >= 0) { // off to the right + if (center > mMostLeft) // move to center loses left-most text? + center = mMostLeft; + } else if (rightOver < 0 && leftOver <= 0) { // off to the left + if (center < mMostRight) // move to center loses right-most text? + center = mMostRight; + } else { +#ifdef DONT_CENTER_IF_ALREADY_VISIBLE + center = 0; // paragraph is already fully visible +#endif + } + DBG_NAV_LOGD("scroll: leftOver=%d rightOver=%d center=%d", + leftOver, rightOver, center); + return center; + } + +protected: + virtual bool onIRect(const SkIRect& rect) { + if (joinGlyphs(rect)) // assembles glyphs into a text string + return false; + if (!isTextType(mType)) + return false; + /* Text on one line may be broken into several parts. Reassemble + the text into a rectangle before considering it. */ + if (rect.fTop < mPartial.fBottom && rect.fBottom > + mPartial.fTop && mPartial.fRight + CENTER_SLOP >= rect.fLeft) { + DBG_NAV_LOGD("join mPartial=(%d, %d, %d, %d) rect=(%d, %d, %d, %d)", + mPartial.fLeft, mPartial.fTop, mPartial.fRight, mPartial.fBottom, + rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); + mPartial.join(rect); + return false; + } + if (mPartial.isEmpty() == false) + doRect(); // process the previous line of text + mPartial = rect; + return false; + } + + void doRect() + { + /* Record the outer bounds of the lines of text that was 'hit' by the + touch coordinates, given some slop */ + if (SkIRect::Intersects(mPartial, mHit)) { + if (mHitLeft > mPartial.fLeft) + mHitLeft = mPartial.fLeft; + if (mHitRight < mPartial.fRight) + mHitRight = mPartial.fRight; + DBG_NAV_LOGD("mHitLeft=%d mHitRight=%d", mHitLeft, mHitRight); + } + /* If the considered text is completely to the left or right of the + touch coordinates, skip it */ + if (mPartial.fLeft > mX || mPartial.fRight < mX) + return; + int leftOver = mPartial.fLeft - mViewLeft; + int rightOver = mPartial.fRight - mViewRight; + /* If leftOver <= 0, the text starts off the screen. + If rightOver >= 0, the text ends off the screen. + */ + if (leftOver <= 0 && rightOver >= 0) // discard wider than screen + return; +#ifdef DONT_CENTER_IF_ALREADY_VISIBLE + if (leftOver > 0 && rightOver < 0) // discard already visible + return; +#endif + /* record the smallest margins on the left and right */ + if (mMostLeft > leftOver) + mMostLeft = leftOver; + if (mMostRight < rightOver) + mMostRight = rightOver; + DBG_NAV_LOGD("leftOver=%d rightOver=%d mMostLeft=%d mMostRight=%d", + leftOver, rightOver, mMostLeft, mMostRight); + } + + static const int CENTER_SLOP = 10; // space between text parts and lines + /* const */ SkIRect mHit; // sloppy hit rectangle + SkIRect mPartial; // accumulated text bounds, per line + const int mX; // touch location + const int mY; + int mHitLeft; // touched text extremes + int mHitRight; + int mMostLeft; // paragraph extremes + int mMostRight; + const int mViewLeft; // middle third of 3x-wide view + const int mViewRight; +}; + +class ImageCanvas : public ParseCanvas { +public: + ImageCanvas(SkBounder* bounder) : mURI(NULL) { + setBounder(bounder); + } + + const char* getURI() { return mURI; } + +protected: +// Currently webkit's bitmap draws always seem to be cull'd before this entry +// point is called, so we assume that any bitmap that gets here is inside our +// tiny clip (may not be true in the future) + virtual void commonDrawBitmap(const SkBitmap& bitmap, const SkIRect* rect, + const SkMatrix& , const SkPaint& ) { + SkPixelRef* pixelRef = bitmap.pixelRef(); + if (pixelRef != NULL) { + mURI = pixelRef->getURI(); + } + } + +private: + const char* mURI; +}; + +class ImageCheck : public SkBounder { +public: + virtual bool onIRect(const SkIRect& rect) { + return false; + } +}; + +class JiggleCheck : public CommonCheck { +public: + JiggleCheck(int delta, int width) : mDelta(delta), mMaxX(width) { + mMaxJiggle = 0; + mMinX = mMinJiggle = abs(delta); + mMaxWidth = width + mMinX; + } + + int jiggle() { + if (mMinJiggle > mMaxJiggle) + return mDelta; + int avg = (mMinJiggle + mMaxJiggle + 1) >> 1; + return mDelta < 0 ? -avg : avg; + } + + virtual bool onIRect(const SkIRect& rect) { + if (joinGlyphs(rect)) + return false; + if (mType != kDrawBitmap_Type && !isTextType(mType)) + return false; + int min, max; + if (mDelta < 0) { + min = mMinX - rect.fLeft; + max = mMaxWidth - rect.fRight; + } else { + min = rect.fRight - mMaxX; + max = rect.fLeft; + } + if (min <= 0) + return false; + if (max >= mMinX) + return false; + if (mMinJiggle > min) + mMinJiggle = min; + if (mMaxJiggle < max) + mMaxJiggle = max; + return false; + } + + int mDelta; + int mMaxJiggle; + int mMaxX; + int mMinJiggle; + int mMinX; + int mMaxWidth; +}; + +class RingCheck : public CommonCheck { +public: + RingCheck(const WTF::Vector<WebCore::IntRect>& rings, + const WebCore::IntRect& bitBounds, const WebCore::IntRect& testBounds, + bool singleImage) + : mTestBounds(testBounds) + , mBitBounds(bitBounds) + , mPushPop(false) + , mSingleImage(singleImage) + { + const WebCore::IntRect* r; + for (r = rings.begin(); r != rings.end(); r++) { + SkIRect fatter = {r->x(), r->y(), r->right(), r->bottom()}; + fatter.inset(-CURSOR_RING_HIT_TEST_RADIUS, -CURSOR_RING_HIT_TEST_RADIUS); + DBG_NAV_LOGD("RingCheck fat=(%d,%d,r=%d,b=%d)", fatter.fLeft, fatter.fTop, + fatter.fRight, fatter.fBottom); + mTextSlop.op(fatter, SkRegion::kUnion_Op); + mTextTest.op(*r, SkRegion::kUnion_Op); + } + int dx = -bitBounds.x(); + int dy = -bitBounds.y(); + DBG_NAV_LOGD("RingCheck translate=(%d,%d)", dx, dy); + mTextSlop.translate(dx, dy); + mTextTest.translate(dx, dy); + mTestBounds.translate(dx, dy); + mEmpty.setEmpty(); + } + + bool hiddenRings(SkRegion* clipped) + { + findBestLayer(); + if (!mBestLayer) { + DBG_NAV_LOG("RingCheck empty"); + clipped->setEmpty(); + return true; + } + const SkRegion* layersEnd = mLayers.end(); + const Type* layerTypes = &mLayerTypes[mBestLayer - mLayers.begin()]; + bool collectGlyphs = true; + bool collectOvers = false; + SkRegion over; + for (const SkRegion* layers = mBestLayer; layers != layersEnd; layers++) { + Type layerType = *layerTypes++; + DBG_NAV_LOGD("RingCheck #%d %s (%d,%d,r=%d,b=%d)", + layers - mLayers.begin(), TypeNames[layerType], + layers->getBounds().fLeft, layers->getBounds().fTop, + layers->getBounds().fRight, layers->getBounds().fBottom); + if (collectGlyphs && (layerType == kDrawGlyph_Type + || ((layerType == kDrawRect_Type && mTextTest.contains(*layers)) + || (layerType == kDrawBitmap_Type && mTextSlop.contains(*layers))))) { + DBG_NAV_LOGD("RingCheck #%d collectOvers", layers - mLayers.begin()); + collectOvers = true; + clipped->op(*layers, SkRegion::kUnion_Op); + continue; + } + collectGlyphs &= layerType != kPushLayer_Type; + if (collectOvers && (layerType == kDrawRect_Type + || layerType == kDrawBitmap_Type + || (!collectGlyphs && layerType == kDrawSprite_Type))) { + DBG_NAV_LOGD("RingCheck #%d over.op", layers - mLayers.begin()); + over.op(*layers, SkRegion::kUnion_Op); + } + } + bool result = !collectOvers || clipped->intersects(over); + const SkIRect t = clipped->getBounds(); + const SkIRect o = over.getBounds(); + clipped->op(over, SkRegion::kDifference_Op); + clipped->translate(mBitBounds.x(), mBitBounds.y()); + const SkIRect c = clipped->getBounds(); + DBG_NAV_LOGD("RingCheck intersects=%s text=(%d,%d,r=%d,b=%d)" + " over=(%d,%d,r=%d,b=%d) clipped=(%d,%d,r=%d,b=%d)", + result ? "true" : "false", + t.fLeft, t.fTop, t.fRight, t.fBottom, + o.fLeft, o.fTop, o.fRight, o.fBottom, + c.fLeft, c.fTop, c.fRight, c.fBottom); + return result; + } + + void push(Type type, const SkIRect& bounds) + { +#if DEBUG_NAV_UI + // this caches the push string and subquently ignores if pushSave + // is immediately followed by popLayer. Push/pop pairs happen + // frequently and just add noise to the log. + static String lastLog; + String currentLog = String("RingCheck append #") + + String::number(mLayers.size()) + + " type=" + TypeNames[type] + " bounds=(" + + String::number(bounds.fLeft) + + "," + String::number(bounds.fTop) + "," + + String::number(bounds.fRight) + "," + + String::number(bounds.fBottom) + ")"; + if (lastLog.length() == 0 || type != kPopLayer_Type) { + if (lastLog.length() != 0) + DBG_NAV_LOGD("%s", lastLog.latin1().data()); + if (type == kPushSave_Type) + lastLog = currentLog; + else + DBG_NAV_LOGD("%s", currentLog.latin1().data()); + } else + lastLog = ""; +#endif + popEmpty(); + mPushPop |= type >= kPopLayer_Type; + if (type == kPopLayer_Type) { + Type last = mLayerTypes.last(); + // remove empty brackets + if (last == kPushLayer_Type || last == kPushSave_Type) { + mLayers.removeLast(); + mLayerTypes.removeLast(); + return; + } + // remove push/pop from push/bitmap/pop + size_t pushIndex = mLayerTypes.size() - 2; + if (last == kDrawBitmap_Type + && mLayerTypes.at(pushIndex) == kPushLayer_Type) { + mLayers.at(pushIndex) = mLayers.last(); + mLayerTypes.at(pushIndex) = kDrawBitmap_Type; + mLayers.removeLast(); + mLayerTypes.removeLast(); + return; + } + // remove non-layer brackets + int stack = 0; + Type* types = mLayerTypes.end(); + while (types != mLayerTypes.begin()) { + Type type = *--types; + if (type == kPopLayer_Type) { + stack++; + continue; + } + if (type != kPushLayer_Type && type != kPushSave_Type) + continue; + if (--stack >= 0) + continue; + if (type == kPushLayer_Type) + break; + int remove = types - mLayerTypes.begin(); + DBG_NAV_LOGD("RingCheck remove=%d mLayers.size=%d" + " mLayerTypes.size=%d", remove, mLayers.size(), + mLayerTypes.size()); + mLayers.remove(remove); + mLayerTypes.remove(remove); + mAppendLikeTypes = false; + return; + } + } + mLayers.append(bounds); + mLayerTypes.append(type); + } + + void startText(const SkPaint& paint) + { + mPaint = &paint; + if (!mLayerTypes.isEmpty() && mLayerTypes.last() == kDrawGlyph_Type + && !mLayers.last().isEmpty()) { + push(kDrawGlyph_Type, mEmpty); + } + } + + bool textOutsideRings() + { + findBestLayer(); + if (!mBestLayer) { + DBG_NAV_LOG("RingCheck empty"); + return false; + } + const SkRegion* layers = mBestLayer; + const Type* layerTypes = &mLayerTypes[layers - mLayers.begin()]; + // back up to include text drawn before the best layer + SkRegion active = SkRegion(mBitBounds); + active.translate(-mBitBounds.x(), -mBitBounds.y()); + while (layers != mLayers.begin()) { + --layers; + Type layerType = *--layerTypes; + DBG_NAV_LOGD("RingCheck #%d %s" + " mTestBounds=(%d,%d,r=%d,b=%d) layers=(%d,%d,r=%d,b=%d)" + " active=(%d,%d,r=%d,b=%d)", + layers - mLayers.begin(), TypeNames[layerType], + mTestBounds.getBounds().fLeft, mTestBounds.getBounds().fTop, + mTestBounds.getBounds().fRight, mTestBounds.getBounds().fBottom, + layers->getBounds().fLeft, layers->getBounds().fTop, + layers->getBounds().fRight, layers->getBounds().fBottom, + active.getBounds().fLeft, active.getBounds().fTop, + active.getBounds().fRight, active.getBounds().fBottom); + if (layerType == kDrawRect_Type || layerType == kDrawBitmap_Type) { + SkRegion temp = *layers; + temp.op(mTestBounds, SkRegion::kIntersect_Op); + active.op(temp, SkRegion::kDifference_Op); + if (active.isEmpty()) { + DBG_NAV_LOGD("RingCheck #%d empty", layers - mLayers.begin()); + break; + } + } else if (layerType == kDrawGlyph_Type) { + SkRegion temp = *layers; + temp.op(active, SkRegion::kIntersect_Op); + if (!mTestBounds.intersects(temp)) + continue; + if (!mTestBounds.contains(temp)) + return false; + } else + break; + } + layers = mBestLayer; + layerTypes = &mLayerTypes[layers - mLayers.begin()]; + bool foundGlyph = false; + bool collectGlyphs = true; + do { + Type layerType = *layerTypes++; + DBG_NAV_LOGD("RingCheck #%d %s mTestBounds=(%d,%d,r=%d,b=%d)" + " layers=(%d,%d,r=%d,b=%d) collects=%s intersects=%s contains=%s", + layers - mLayers.begin(), TypeNames[layerType], + mTestBounds.getBounds().fLeft, mTestBounds.getBounds().fTop, + mTestBounds.getBounds().fRight, mTestBounds.getBounds().fBottom, + layers->getBounds().fLeft, layers->getBounds().fTop, + layers->getBounds().fRight, layers->getBounds().fBottom, + collectGlyphs ? "true" : "false", + mTestBounds.intersects(*layers) ? "true" : "false", + mTextSlop.contains(*layers) ? "true" : "false"); + if (collectGlyphs && layerType == kDrawGlyph_Type) { + if (!mTestBounds.intersects(*layers)) + continue; + if (!mTextSlop.contains(*layers)) + return false; + foundGlyph = true; + } + collectGlyphs &= layerType != kPushLayer_Type; + } while (++layers != mLayers.end()); + DBG_NAV_LOGD("RingCheck foundGlyph=%s", foundGlyph ? "true" : "false"); + return foundGlyph; + } + +protected: + virtual bool onIRect(const SkIRect& rect) + { + joinGlyphs(rect); + if (mType != kDrawGlyph_Type && mType != kDrawRect_Type + && mType != kDrawSprite_Type && mType != kDrawBitmap_Type) + return false; + if (mLayerTypes.isEmpty() || mLayerTypes.last() != mType + || !mAppendLikeTypes || mPushPop || mSingleImage + // if the last and current were not glyphs, + // and the two bounds have a gap between, don't join them -- push + // an empty between them + || (mType != kDrawGlyph_Type && !joinable(rect))) { + push(mType, mEmpty); + } + DBG_NAV_LOGD("RingCheck join %s (%d,%d,r=%d,b=%d) '%c'", + TypeNames[mType], rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, + mCh); + mLayers.last().op(rect, SkRegion::kUnion_Op); + mAppendLikeTypes = true; + mPushPop = false; + return false; + } + + virtual bool onIRectGlyph(const SkIRect& rect, + const SkBounder::GlyphRec& rec) + { + mCh = ' '; + if (mPaint) { + SkUnichar unichar; + SkPaint utfPaint = *mPaint; + utfPaint.setTextEncoding(SkPaint::kUTF16_TextEncoding); + utfPaint.glyphsToUnichars(&rec.fGlyphID, 1, &unichar); + mCh = unichar < 0x7f ? unichar : '?'; + } + return onIRect(rect); + } + +private: + int calcOverlap(SkRegion& testRegion) + { + if (testRegion.isEmpty()) + return INT_MAX; + testRegion.op(mTextTest, SkRegion::kXOR_Op); + SkRegion::Iterator iter(testRegion); + int area = 0; + while (!iter.done()) { + const SkIRect& cr = iter.rect(); + area += cr.width() * cr.height(); + iter.next(); + } + DBG_NAV_LOGD("RingCheck area=%d", area); + return area; + } + + void findBestLayer() + { + popEmpty(); + mBestLayer = 0; + const SkRegion* layers = mLayers.begin(); + const SkRegion* layersEnd = mLayers.end(); + if (layers == layersEnd) { + DBG_NAV_LOG("RingCheck empty"); + return; + } + // find text most like focus rings by xoring found with original + int bestArea = INT_MAX; + const SkRegion* testLayer = 0; + SkRegion testRegion; + const Type* layerTypes = &mLayerTypes[layers - mLayers.begin()]; + for (; layers != mLayers.end(); layers++) { + Type layerType = *layerTypes++; +#if DEBUG_NAV_UI + const SkIRect& gb = layers->getBounds(); + const SkIRect& tb = mTextSlop.getBounds(); + DBG_NAV_LOGD("RingCheck #%d %s mTextSlop=(%d,%d,%d,%d)" + " contains=%s bounds=(%d,%d,%d,%d)", + layers - mLayers.begin(), TypeNames[layerType], + tb.fLeft, tb.fTop, tb.fRight, tb.fBottom, + mTextSlop.contains(*layers) ? "true" : "false", + gb.fLeft, gb.fTop, gb.fRight, gb.fBottom); +#endif + if (((layerType == kDrawGlyph_Type || layerType == kDrawBitmap_Type) + && mTextSlop.contains(*layers)) + || (layerType == kDrawRect_Type + && mTextTest.contains(*layers))) { + if (!testLayer) + testLayer = layers; + testRegion.op(*layers, SkRegion::kUnion_Op); + continue; + } + if (testLayer) { + int area = calcOverlap(testRegion); + if (bestArea > area) { + bestArea = area; + mBestLayer = testLayer; + } + DBG_NAV_LOGD("RingCheck #%d push test=%d best=%d", + layers - mLayers.begin(), testLayer - mLayers.begin(), + mBestLayer ? mBestLayer - mLayers.begin() : -1); + testRegion.setEmpty(); + testLayer = 0; + } + } + if (testLayer && bestArea > calcOverlap(testRegion)) { + DBG_NAV_LOGD("RingCheck last best=%d", testLayer - mLayers.begin()); + mBestLayer = testLayer; + } + } + + bool joinable(const SkIRect& rect) + { + SkRegion region = mLayers.last(); + if (!region.isRect()) + return false; + const SkIRect& bounds1 = region.getBounds(); + int area1 = bounds1.width() * bounds1.height(); + area1 += rect.width() * rect.height(); + region.op(rect, SkRegion::kUnion_Op); + const SkIRect& bounds2 = region.getBounds(); + int area2 = bounds2.width() * bounds2.height(); + return area2 <= area1; + } + + void popEmpty() + { + if (mLayerTypes.size() == 0) + return; + Type last = mLayerTypes.last(); + if (last >= kPopLayer_Type) + return; + const SkRegion& area = mLayers.last(); + if (!area.isEmpty()) + return; + DBG_NAV_LOGD("RingCheck #%d %s", mLayers.size() - 1, TypeNames[last]); + mLayers.removeLast(); + mLayerTypes.removeLast(); + } + + SkRegion mTestBounds; + IntRect mBitBounds; + SkIRect mEmpty; + const SkRegion* mBestLayer; + SkRegion mTextSlop; // outset rects for inclusion test + SkRegion mTextTest; // exact rects for xor area test + Type mLastType; + Vector<SkRegion> mLayers; + Vector<Type> mLayerTypes; + const SkPaint* mPaint; + char mCh; + bool mAppendLikeTypes; + bool mPushPop; + bool mSingleImage; +}; + +class RingCanvas : public BoundsCanvas { +public: + RingCanvas(RingCheck* bounder) + : INHERITED(bounder) + { + } + +protected: + virtual void drawText(const void* text, size_t byteLength, SkScalar x, + SkScalar y, const SkPaint& paint) { + static_cast<RingCheck&>(mBounder).startText(paint); + INHERITED::drawText(text, byteLength, x, y, paint); + } + + virtual void drawPosText(const void* text, size_t byteLength, + const SkPoint pos[], const SkPaint& paint) { + static_cast<RingCheck&>(mBounder).startText(paint); + INHERITED::drawPosText(text, byteLength, pos, paint); + } + + virtual void drawTextOnPath(const void* text, size_t byteLength, + const SkPath& path, const SkMatrix* matrix, + const SkPaint& paint) { + static_cast<RingCheck&>(mBounder).startText(paint); + INHERITED::drawTextOnPath(text, byteLength, path, matrix, paint); + } + + virtual void drawPosTextH(const void* text, size_t byteLength, + const SkScalar xpos[], SkScalar constY, + const SkPaint& paint) { + static_cast<RingCheck&>(mBounder).startText(paint); + INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint); + } + + virtual int save(SaveFlags flags) + { + RingCheck& bounder = static_cast<RingCheck&>(mBounder); + bounder.push(CommonCheck::kPushSave_Type, getTotalClip().getBounds()); + return INHERITED::save(flags); + } + + virtual int saveLayer(const SkRect* bounds, const SkPaint* paint, + SaveFlags flags) + { + RingCheck& bounder = static_cast<RingCheck&>(mBounder); + bounder.push(CommonCheck::kPushLayer_Type, getTotalClip().getBounds()); + return INHERITED::save(flags); + } + + virtual void restore() + { + RingCheck& bounder = static_cast<RingCheck&>(mBounder); + bounder.push(CommonCheck::kPopLayer_Type, getTotalClip().getBounds()); + INHERITED::restore(); + } + +private: + typedef BoundsCanvas INHERITED; +}; + +bool CachedRoot::adjustForScroll(BestData* best, CachedFrame::Direction direction, + WebCore::IntPoint* scrollPtr, bool findClosest) +{ + WebCore::IntRect newOutset; + const CachedNode* newNode = best->mNode; + // see if there's a middle node + // if the middle node is in the visited list, + // or if none was computed and the newNode is in the visited list, + // treat result as NULL + if (newNode != NULL && findClosest) { + if (best->bounds().intersects(mHistory->mPriorBounds) == false && + checkBetween(best, direction)) + newNode = best->mNode; + if (findClosest && maskIfHidden(best)) { + innerMove(document(), best, direction, scrollPtr, false); + return true; + } + newOutset = newNode->cursorRingBounds(best->mFrame); + } + int delta; + bool newNodeInView = scrollDelta(newOutset, direction, &delta); + if (delta && scrollPtr && (newNode == NULL || newNodeInView == false || + (best->mNavOutside && best->mWorkingOutside))) + *scrollPtr = WebCore::IntPoint(direction & UP_DOWN ? 0 : delta, + direction & UP_DOWN ? delta : 0); + return false; +} + +void CachedRoot::calcBitBounds(const IntRect& nodeBounds, IntRect* bitBounds) const +{ + IntRect contentBounds = IntRect(0, 0, mPicture->width(), mPicture->height()); + IntRect overBounds = nodeBounds; + overBounds.inflate(kMargin); + IntRect viewableBounds = mScrolledBounds; + viewableBounds.unite(mViewBounds); + *bitBounds = contentBounds; + bitBounds->intersect(overBounds); + if (!bitBounds->intersects(viewableBounds)) + *bitBounds = IntRect(0, 0, 0, 0); + DBG_NAV_LOGD("contentBounds=(%d,%d,r=%d,b=%d) overBounds=(%d,%d,r=%d,b=%d)" + " mScrolledBounds=(%d,%d,r=%d,b=%d) mViewBounds=(%d,%d,r=%d,b=%d)" + " bitBounds=(%d,%d,r=%d,b=%d)", + contentBounds.x(), contentBounds.y(), contentBounds.right(), + contentBounds.bottom(), + overBounds.x(), overBounds.y(), overBounds.right(), overBounds.bottom(), + mScrolledBounds.x(), mScrolledBounds.y(), mScrolledBounds.right(), + mScrolledBounds.bottom(), + mViewBounds.x(), mViewBounds.y(), mViewBounds.right(), + mViewBounds.bottom(), + bitBounds->x(), bitBounds->y(), bitBounds->right(), + bitBounds->bottom()); +} + + +int CachedRoot::checkForCenter(int x, int y) const +{ + int width = mViewBounds.width(); + SkPicture* picture = pictureAt(&x, &y); + CenterCheck centerCheck(x + width - mViewBounds.x(), y - mViewBounds.y(), + width); + BoundsCanvas checker(¢erCheck); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, width * 3, + mViewBounds.height()); + checker.setBitmapDevice(bitmap); + checker.translate(SkIntToScalar(width - mViewBounds.x()), + SkIntToScalar(-mViewBounds.y())); + checker.drawPicture(*picture); + return centerCheck.center(); +} + +void CachedRoot::checkForJiggle(int* xDeltaPtr) const +{ + int xDelta = *xDeltaPtr; + JiggleCheck jiggleCheck(xDelta, mViewBounds.width()); + BoundsCanvas checker(&jiggleCheck); + SkBitmap bitmap; + int absDelta = abs(xDelta); + bitmap.setConfig(SkBitmap::kARGB_8888_Config, mViewBounds.width() + + absDelta, mViewBounds.height()); + checker.setBitmapDevice(bitmap); + int x = -mViewBounds.x() - (xDelta < 0 ? xDelta : 0); + int y = -mViewBounds.y(); + SkPicture* picture = pictureAt(&x, &y); + checker.translate(SkIntToScalar(x), SkIntToScalar(y)); + checker.drawPicture(*picture); + *xDeltaPtr = jiggleCheck.jiggle(); +} + +bool CachedRoot::checkRings(SkPicture* picture, const CachedNode* node, + const WebCore::IntRect& testBounds) const +{ + if (!picture) + return false; + const WTF::Vector<WebCore::IntRect>& rings = node->rings(); + const WebCore::IntRect& nodeBounds = node->rawBounds(); + IntRect bitBounds; + calcBitBounds(nodeBounds, &bitBounds); + RingCheck ringCheck(rings, bitBounds, testBounds, node->singleImage()); + RingCanvas checker(&ringCheck); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, bitBounds.width(), + bitBounds.height()); + checker.setBitmapDevice(bitmap); + checker.translate(SkIntToScalar(-bitBounds.x()), + SkIntToScalar(-bitBounds.y())); + checker.drawPicture(*picture); + bool result = ringCheck.textOutsideRings(); + DBG_NAV_LOGD("bitBounds=(%d,%d,r=%d,b=%d) nodeBounds=(%d,%d,r=%d,b=%d)" + " testBounds=(%d,%d,r=%d,b=%d) success=%s", + bitBounds.x(), bitBounds.y(), bitBounds.right(), bitBounds.bottom(), + nodeBounds.x(), nodeBounds.y(), nodeBounds.right(), nodeBounds.bottom(), + testBounds.x(), testBounds.y(), testBounds.right(), testBounds.bottom(), + result ? "true" : "false"); + return result; +} + +void CachedRoot::draw(FindCanvas& canvas) const +{ + canvas.setLayerId(-1); // overlays change the ID as their pictures draw + canvas.drawPicture(*mPicture); +#if USE(ACCELERATED_COMPOSITING) + if (!mRootLayer) + return; + canvas.drawLayers(mRootLayer); +#endif +} + +const CachedNode* CachedRoot::findAt(const WebCore::IntRect& rect, + const CachedFrame** framePtr, int* x, int* y, bool checkForHidden) const +{ +#if DEBUG_NAV_UI + DBG_NAV_LOGD("rect=(%d,%d,w=%d,h=%d) xy=(%d,%d)", rect.x(), rect.y(), + rect.width(), rect.height(), *x, *y); + if (mRootLayer) CachedLayer::Debug::printRootLayerAndroid(mRootLayer); +#endif + int best = INT_MAX; + bool inside = false; + (const_cast<CachedRoot*>(this))->resetClippedOut(); + const CachedFrame* directHitFramePtr; + const CachedNode* directHit = NULL; + const CachedNode* node = findBestAt(rect, &best, &inside, &directHit, + &directHitFramePtr, framePtr, x, y, checkForHidden); + DBG_NAV_LOGD("node=%d (%p) xy=(%d,%d)", node == NULL ? 0 : node->index(), + node == NULL ? NULL : node->nodePointer(), *x, *y); + if (node == NULL) { + node = findBestHitAt(rect, framePtr, x, y); + DBG_NAV_LOGD("node=%d (%p)", node == NULL ? 0 : node->index(), + node == NULL ? NULL : node->nodePointer()); + } + if (node == NULL) { + *framePtr = findBestFrameAt(rect.x() + (rect.width() >> 1), + rect.y() + (rect.height() >> 1)); + } + return node; +} + +WebCore::IntPoint CachedRoot::cursorLocation() const +{ + const WebCore::IntRect& bounds = mHistory->mNavBounds; + return WebCore::IntPoint(bounds.x() + (bounds.width() >> 1), + bounds.y() + (bounds.height() >> 1)); +} + +WebCore::IntPoint CachedRoot::focusLocation() const +{ + return WebCore::IntPoint(mFocusBounds.x() + (mFocusBounds.width() >> 1), + mFocusBounds.y() + (mFocusBounds.height() >> 1)); +} + +// These reset the values because we only want to get the selection the first time. +// After that, the selection is no longer accurate. +int CachedRoot::getAndResetSelectionEnd() +{ + int end = mSelectionEnd; + mSelectionEnd = -1; + return end; +} + +int CachedRoot::getAndResetSelectionStart() +{ + int start = mSelectionStart; + mSelectionStart = -1; + return start; +} + +int CachedRoot::getBlockLeftEdge(int x, int y, float scale) const +{ + DBG_NAV_LOGD("x=%d y=%d scale=%g mViewBounds=(%d,%d,%d,%d)", x, y, scale, + mViewBounds.x(), mViewBounds.y(), mViewBounds.width(), + mViewBounds.height()); + // if (x, y) is in a textArea or textField, return that + const int slop = 1; + WebCore::IntRect rect = WebCore::IntRect(x - slop, y - slop, + slop * 2, slop * 2); + const CachedFrame* frame; + int fx, fy; + const CachedNode* node = findAt(rect, &frame, &fx, &fy, true); + if (node && node->wantsKeyEvents()) { + DBG_NAV_LOGD("x=%d (%s)", node->bounds(frame).x(), + node->isTextInput() ? "text" : "plugin"); + return node->bounds(frame).x(); + } + SkPicture* picture = node ? frame->picture(node, &x, &y) : pictureAt(&x, &y); + if (!picture) + return x; + int halfW = (int) (mViewBounds.width() * scale * 0.5f); + int fullW = halfW << 1; + int halfH = (int) (mViewBounds.height() * scale * 0.5f); + int fullH = halfH << 1; + LeftCheck leftCheck(fullW, halfH); + BoundsCanvas checker(&leftCheck); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, fullW, fullH); + checker.setBitmapDevice(bitmap); + checker.translate(SkIntToScalar(fullW - x), SkIntToScalar(halfH - y)); + checker.drawPicture(*picture); + int result = x + leftCheck.left() - fullW; + DBG_NAV_LOGD("halfW=%d halfH=%d mMostLeft=%d x=%d", + halfW, halfH, leftCheck.mMostLeft, result); + return result; +} + +void CachedRoot::getSimulatedMousePosition(WebCore::IntPoint* point) const +{ +#ifndef NDEBUG + ASSERT(CachedFrame::mDebug.mInUse); +#endif + const WebCore::IntRect& mouseBounds = mHistory->mMouseBounds; + int x = mouseBounds.x(); + int y = mouseBounds.y(); + int width = mouseBounds.width(); + int height = mouseBounds.height(); + point->setX(x + (width >> 1)); // default to box center + point->setY(y + (height >> 1)); +#if DEBUG_NAV_UI + const WebCore::IntRect& navBounds = mHistory->mNavBounds; + DBG_NAV_LOGD("mHistory->mNavBounds={%d,%d,%d,%d} " + "mHistory->mMouseBounds={%d,%d,%d,%d} point={%d,%d}", + navBounds.x(), navBounds.y(), navBounds.width(), navBounds.height(), + mouseBounds.x(), mouseBounds.y(), mouseBounds.width(), + mouseBounds.height(), point->x(), point->y()); +#endif +} + +void CachedRoot::init(WebCore::Frame* frame, CachedHistory* history) +{ + CachedFrame::init(this, -1, frame); + reset(); + mHistory = history; + mPicture = NULL; +} + +bool CachedRoot::innerDown(const CachedNode* test, BestData* bestData) const +{ + ASSERT(minWorkingVertical() >= mViewBounds.x()); + ASSERT(maxWorkingVertical() <= mViewBounds.right()); + setupScrolledBounds(); + // (line up) + mScrolledBounds.setHeight(mScrolledBounds.height() + mMaxYScroll); + int testTop = mScrolledBounds.y(); + int viewBottom = mViewBounds.bottom(); + const WebCore::IntRect& navBounds = mHistory->mNavBounds; + if (navBounds.isEmpty() == false && + navBounds.bottom() > viewBottom && viewBottom < mContents.height()) + return false; + if (navBounds.isEmpty() == false) { + int navTop = navBounds.y(); + int scrollBottom; + if (testTop < navTop && navTop < (scrollBottom = mScrolledBounds.bottom())) { + mScrolledBounds.setHeight(scrollBottom - navTop); + mScrolledBounds.setY(navTop); + } + } + setCursorCache(0, mMaxYScroll); + frameDown(test, NULL, bestData); + return true; +} + +bool CachedRoot::innerLeft(const CachedNode* test, BestData* bestData) const +{ + ASSERT(minWorkingHorizontal() >= mViewBounds.y()); + ASSERT(maxWorkingHorizontal() <= mViewBounds.bottom()); + setupScrolledBounds(); + mScrolledBounds.setX(mScrolledBounds.x() - mMaxXScroll); + mScrolledBounds.setWidth(mScrolledBounds.width() + mMaxXScroll); + int testRight = mScrolledBounds.right(); + int viewLeft = mViewBounds.x(); + const WebCore::IntRect& navBounds = mHistory->mNavBounds; + if (navBounds.isEmpty() == false && + navBounds.x() < viewLeft && viewLeft > mContents.x()) + return false; + if (navBounds.isEmpty() == false) { + int navRight = navBounds.right(); + int scrollLeft; + if (testRight > navRight && navRight > (scrollLeft = mScrolledBounds.x())) + mScrolledBounds.setWidth(navRight - scrollLeft); + } + setCursorCache(-mMaxXScroll, 0); + frameLeft(test, NULL, bestData); + return true; +} + + +void CachedRoot::innerMove(const CachedNode* node, BestData* bestData, + Direction direction, WebCore::IntPoint* scroll, bool firstCall) +{ + bestData->reset(); + bool outOfCursor = mCursorIndex == CURSOR_CLEARED; + DBG_NAV_LOGD("mHistory->didFirstLayout()=%s && mCursorIndex=%d", + mHistory->didFirstLayout() ? "true" : "false", mCursorIndex); + if (mHistory->didFirstLayout() && mCursorIndex < CURSOR_SET) { + mHistory->reset(); + outOfCursor = true; + } + const CachedFrame* cursorFrame; + const CachedNode* cursor = currentCursor(&cursorFrame); + mHistory->setWorking(direction, cursorFrame, cursor, mViewBounds); + bool findClosest = false; + if (mScrollOnly == false) { + switch (direction) { + case LEFT: + if (outOfCursor) + mHistory->mNavBounds = WebCore::IntRect(mViewBounds.right(), + mViewBounds.y(), 1, mViewBounds.height()); + findClosest = innerLeft(node, bestData); + break; + case RIGHT: + if (outOfCursor) + mHistory->mNavBounds = WebCore::IntRect(mViewBounds.x() - 1, + mViewBounds.y(), 1, mViewBounds.height()); + findClosest = innerRight(node, bestData); + break; + case UP: + if (outOfCursor) + mHistory->mNavBounds = WebCore::IntRect(mViewBounds.x(), + mViewBounds.bottom(), mViewBounds.width(), 1); + findClosest = innerUp(node, bestData); + break; + case DOWN: + if (outOfCursor) + mHistory->mNavBounds = WebCore::IntRect(mViewBounds.x(), + mViewBounds.y() - 1, mViewBounds.width(), 1); + findClosest = innerDown(node, bestData); + break; + case UNINITIALIZED: + default: + ASSERT(0); + } + } + if (firstCall) + mHistory->mPriorBounds = mHistory->mNavBounds; // bounds always advances, even if new node is ultimately NULL + bestData->setMouseBounds(bestData->bounds()); + if (adjustForScroll(bestData, direction, scroll, findClosest)) + return; + if (bestData->mNode != NULL) { + mHistory->addToVisited(bestData->mNode, direction); + mHistory->mNavBounds = bestData->bounds(); + mHistory->mMouseBounds = bestData->mouseBounds(); + } else if (scroll->x() != 0 || scroll->y() != 0) { + WebCore::IntRect newBounds = mHistory->mNavBounds; + int offsetX = scroll->x(); + int offsetY = scroll->y(); + newBounds.move(offsetX, offsetY); + if (mViewBounds.x() > newBounds.x()) + offsetX = mViewBounds.x() - mHistory->mNavBounds.x(); + else if (mViewBounds.right() < newBounds.right()) + offsetX = mViewBounds.right() - mHistory->mNavBounds.right(); + if (mViewBounds.y() > newBounds.y()) + offsetY = mViewBounds.y() - mHistory->mNavBounds.y(); + else if (mViewBounds.bottom() < newBounds.bottom()) + offsetY = mViewBounds.bottom() - mHistory->mNavBounds.bottom(); + mHistory->mNavBounds.move(offsetX, offsetY); + } + mHistory->setDidFirstLayout(false); +} + +bool CachedRoot::innerRight(const CachedNode* test, BestData* bestData) const +{ + ASSERT(minWorkingHorizontal() >= mViewBounds.y()); + ASSERT(maxWorkingHorizontal() <= mViewBounds.bottom()); + setupScrolledBounds(); + // (align) + mScrolledBounds.setWidth(mScrolledBounds.width() + mMaxXScroll); + int testLeft = mScrolledBounds.x(); + int viewRight = mViewBounds.right(); + const WebCore::IntRect& navBounds = mHistory->mNavBounds; + if (navBounds.isEmpty() == false && + navBounds.right() > viewRight && viewRight < mContents.width()) + return false; + if (navBounds.isEmpty() == false) { + int navLeft = navBounds.x(); + int scrollRight; + if (testLeft < navLeft && navLeft < (scrollRight = mScrolledBounds.right())) { + mScrolledBounds.setWidth(scrollRight - navLeft); + mScrolledBounds.setX(navLeft); + } + } + setCursorCache(mMaxXScroll, 0); + frameRight(test, NULL, bestData); + return true; +} + +bool CachedRoot::innerUp(const CachedNode* test, BestData* bestData) const +{ + ASSERT(minWorkingVertical() >= mViewBounds.x()); + ASSERT(maxWorkingVertical() <= mViewBounds.right()); + setupScrolledBounds(); + mScrolledBounds.setY(mScrolledBounds.y() - mMaxYScroll); + mScrolledBounds.setHeight(mScrolledBounds.height() + mMaxYScroll); + int testBottom = mScrolledBounds.bottom(); + int viewTop = mViewBounds.y(); + const WebCore::IntRect& navBounds = mHistory->mNavBounds; + if (navBounds.isEmpty() == false && + navBounds.y() < viewTop && viewTop > mContents.y()) + return false; + if (navBounds.isEmpty() == false) { + int navBottom = navBounds.bottom(); + int scrollTop; + if (testBottom > navBottom && navBottom > (scrollTop = mScrolledBounds.y())) + mScrolledBounds.setHeight(navBottom - scrollTop); + } + setCursorCache(0, -mMaxYScroll); + frameUp(test, NULL, bestData); + return true; +} + +WTF::String CachedRoot::imageURI(int x, int y) const +{ + DBG_NAV_LOGD("x/y=(%d,%d)", x, y); + ImageCheck imageCheck; + ImageCanvas checker(&imageCheck); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); + checker.setBitmapDevice(bitmap); + SkPicture* picture = pictureAt(&x, &y); + checker.translate(SkIntToScalar(-x), SkIntToScalar(-y)); + checker.drawPicture(*picture); + DBG_NAV_LOGD("uri=%s", checker.getURI()); + return WTF::String(checker.getURI()); +} + +bool CachedRoot::maskIfHidden(BestData* best) const +{ + const CachedNode* bestNode = best->mNode; + if (bestNode->isUnclipped()) + return false; + const CachedFrame* frame = best->mFrame; + SkPicture* picture = frame->picture(bestNode); + if (picture == NULL) { + DBG_NAV_LOG("missing picture"); + return false; + } + Vector<IntRect> rings; + bestNode->cursorRings(frame, &rings); + const WebCore::IntRect& bounds = bestNode->bounds(frame); + IntRect bitBounds; + calcBitBounds(bounds, &bitBounds); + RingCheck ringCheck(rings, bitBounds, bounds, bestNode->singleImage()); + RingCanvas checker(&ringCheck); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, bitBounds.width(), + bitBounds.height()); + checker.setBitmapDevice(bitmap); + checker.translate(SkIntToScalar(-bitBounds.x()), + SkIntToScalar(-bitBounds.y())); + checker.drawPicture(*picture); + SkRegion clipRgn; + bool clipped = ringCheck.hiddenRings(&clipRgn); + CachedNode* node = const_cast<CachedNode*>(best->mNode); + DBG_NAV_LOGD("clipped=%s clipRgn.isEmpty=%s", clipped ? "true" : "false", + clipRgn.isEmpty() ? "true" : "false"); + if (clipped && clipRgn.isEmpty()) { + node->setDisabled(true); + IntRect clippedBounds = bounds; + clippedBounds.intersect(bitBounds); + node->setClippedOut(clippedBounds != bounds); + return true; + } + // was it partially occluded by later drawing? + // if partially occluded, modify the bounds so that the mouse click has a better x,y + if (clipped) { + DBG_NAV_LOGD("clipped clipRgn={%d,%d,r=%d,b=%d}", + clipRgn.getBounds().fLeft, clipRgn.getBounds().fTop, + clipRgn.getBounds().fRight, clipRgn.getBounds().fBottom); + best->setMouseBounds(clipRgn.getBounds()); + if (!node->clip(best->mouseBounds())) { + node->setDisabled(true); + node->setClippedOut(true); + return true; + } + } else + node->fixUpCursorRects(frame); + return false; +} + +const CachedNode* CachedRoot::moveCursor(Direction direction, const CachedFrame** framePtr, + WebCore::IntPoint* scroll) +{ +#ifndef NDEBUG + ASSERT(CachedFrame::mDebug.mInUse); +#endif + CachedRoot* frame = this; + const CachedNode* node = frame->document(); + if (node == NULL) + return NULL; + if (mViewBounds.isEmpty()) + return NULL; + resetClippedOut(); + setData(); + BestData bestData; + innerMove(node, &bestData, direction, scroll, true); + // if node is partially or fully concealed by layer, scroll it into view + if (mRootLayer && bestData.mNode && !bestData.mNode->isInLayer()) { +#if USE(ACCELERATED_COMPOSITING) +#if DUMP_NAV_CACHE + CachedLayer::Debug::printRootLayerAndroid(mRootLayer); +#endif + SkIRect original = bestData.mNode->cursorRingBounds(bestData.mFrame); + DBG_NAV_LOGD("original=(%d,%d,w=%d,h=%d) scroll=(%d,%d)", + original.fLeft, original.fTop, original.width(), original.height(), + scroll->x(), scroll->y()); + original.offset(-scroll->x(), -scroll->y()); + SkRegion rings(original); + SkTDArray<SkRect> region; + mRootLayer->clipArea(®ion); + SkRegion layers; + for (int index = 0; index < region.count(); index++) { + SkIRect enclosing; + region[index].round(&enclosing); + rings.op(enclosing, SkRegion::kDifference_Op); + layers.op(enclosing, SkRegion::kUnion_Op); + } + SkIRect layerBounds(layers.getBounds()); + SkIRect ringBounds(rings.getBounds()); + int scrollX = scroll->x(); + int scrollY = scroll->y(); + if (rings.getBounds() != original) { + int topOverlap = layerBounds.fBottom - original.fTop; + int bottomOverlap = original.fBottom - layerBounds.fTop; + int leftOverlap = layerBounds.fRight - original.fLeft; + int rightOverlap = original.fRight - layerBounds.fLeft; + if (direction & UP_DOWN) { + if (layerBounds.fLeft < original.fLeft && leftOverlap < 0) + scroll->setX(leftOverlap); + if (original.fRight < layerBounds.fRight && rightOverlap > 0 + && -leftOverlap > rightOverlap) + scroll->setX(rightOverlap); + bool topSet = scrollY > topOverlap && (direction == UP + || !scrollY); + if (topSet) + scroll->setY(topOverlap); + if (scrollY < bottomOverlap && (direction == DOWN || (!scrollY + && (!topSet || -topOverlap > bottomOverlap)))) + scroll->setY(bottomOverlap); + } else { + if (layerBounds.fTop < original.fTop && topOverlap < 0) + scroll->setY(topOverlap); + if (original.fBottom < layerBounds.fBottom && bottomOverlap > 0 + && -topOverlap > bottomOverlap) + scroll->setY(bottomOverlap); + bool leftSet = scrollX > leftOverlap && (direction == LEFT + || !scrollX); + if (leftSet) + scroll->setX(leftOverlap); + if (scrollX < rightOverlap && (direction == RIGHT || (!scrollX + && (!leftSet || -leftOverlap > rightOverlap)))) + scroll->setX(rightOverlap); + } + DBG_NAV_LOGD("rings=(%d,%d,w=%d,h=%d) layers=(%d,%d,w=%d,h=%d)" + " scroll=(%d,%d)", + ringBounds.fLeft, ringBounds.fTop, ringBounds.width(), ringBounds.height(), + layerBounds.fLeft, layerBounds.fTop, layerBounds.width(), layerBounds.height(), + scroll->x(), scroll->y()); + } +#endif + } + *framePtr = bestData.mFrame; + return const_cast<CachedNode*>(bestData.mNode); +} + +const CachedNode* CachedRoot::nextTextField(const CachedNode* start, + const CachedFrame** framePtr) const +{ + bool startFound = false; + return CachedFrame::nextTextField(start, framePtr, &startFound); +} + +SkPicture* CachedRoot::pictureAt(int* xPtr, int* yPtr, int* id) const +{ +#if USE(ACCELERATED_COMPOSITING) + if (mRootLayer) { + const LayerAndroid* layer = mRootLayer->find(xPtr, yPtr, mPicture); + if (layer) { + SkPicture* picture = layer->picture(); + DBG_NAV_LOGD("layer %d picture=%p (%d,%d)", layer->uniqueId(), + picture, picture ? picture->width() : 0, + picture ? picture->height() : 0); + if (picture) { + if (id) + *id = layer->uniqueId(); + return picture; + } + } + } +#endif + DBG_NAV_LOGD("root mPicture=%p (%d,%d)", mPicture, mPicture ? + mPicture->width() : 0, mPicture ? mPicture->height() : 0); + if (id) + *id = -1; + return mPicture; +} + +void CachedRoot::reset() +{ +#ifndef NDEBUG + ASSERT(CachedFrame::mDebug.mInUse); +#endif + mContents = mViewBounds = WebCore::IntRect(0, 0, 0, 0); + mMaxXScroll = mMaxYScroll = 0; + mRootLayer = 0; + mSelectionStart = mSelectionEnd = -1; + mScrollOnly = false; +} + +bool CachedRoot::scrollDelta(WebCore::IntRect& newOutset, Direction direction, int* delta) +{ + switch (direction) { + case LEFT: + *delta = -mMaxXScroll; + return newOutset.x() >= mViewBounds.x(); + case RIGHT: + *delta = mMaxXScroll; + return newOutset.right() <= mViewBounds.right(); + case UP: + *delta = -mMaxYScroll; + return newOutset.y() >= mViewBounds.y(); + case DOWN: + *delta = mMaxYScroll; + return newOutset.bottom() <= mViewBounds.bottom(); + default: + *delta = 0; + ASSERT(0); + } + return false; +} + +void CachedRoot::setCachedFocus(CachedFrame* frame, CachedNode* node) +{ + mFocusBounds = WebCore::IntRect(0, 0, 0, 0); + if (node == NULL) + return; + node->setIsFocus(true); + mFocusBounds = node->bounds(frame); + frame->setFocusIndex(node - frame->document()); + CachedFrame* parent; + while ((parent = frame->parent()) != NULL) { + parent->setFocusIndex(frame->indexInParent()); + frame = parent; + } +#if DEBUG_NAV_UI + const CachedFrame* focusFrame; + const CachedNode* focus = currentFocus(&focusFrame); + WebCore::IntRect bounds = WebCore::IntRect(0, 0, 0, 0); + if (focus) + bounds = focus->bounds(focusFrame); + DBG_NAV_LOGD("new focus %d (nodePointer=%p) bounds={%d,%d,%d,%d}", + focus ? focus->index() : 0, + focus ? focus->nodePointer() : NULL, bounds.x(), bounds.y(), + bounds.width(), bounds.height()); +#endif +} + +void CachedRoot::setCursor(CachedFrame* frame, CachedNode* node) +{ +#if DEBUG_NAV_UI + const CachedFrame* cursorFrame; + const CachedNode* cursor = currentCursor(&cursorFrame); + WebCore::IntRect bounds; + if (cursor) + bounds = cursor->bounds(cursorFrame); + DBG_NAV_LOGD("old cursor %d (nodePointer=%p) bounds={%d,%d,%d,%d}", + cursor ? cursor->index() : 0, + cursor ? cursor->nodePointer() : NULL, bounds.x(), bounds.y(), + bounds.width(), bounds.height()); +#endif + clearCursor(); + if (node == NULL) + return; + node->setIsCursor(true); + node->show(); + frame->setCursorIndex(node - frame->document()); + CachedFrame* parent; + while ((parent = frame->parent()) != NULL) { + parent->setCursorIndex(frame->indexInParent()); + frame = parent; + } +#if DEBUG_NAV_UI + cursor = currentCursor(&cursorFrame); + bounds = WebCore::IntRect(0, 0, 0, 0); + if (cursor) + bounds = cursor->bounds(cursorFrame); + DBG_NAV_LOGD("new cursor %d (nodePointer=%p) bounds={%d,%d,%d,%d}", + cursor ? cursor->index() : 0, + cursor ? cursor->nodePointer() : NULL, bounds.x(), bounds.y(), + bounds.width(), bounds.height()); +#endif +} + +void CachedRoot::setCursorCache(int scrollX, int scrollY) const +{ + mCursor = currentCursor(); + if (mCursor) + mCursorBounds = mCursor->bounds(this); + if (!mRootLayer) + return; + SkRegion baseScrolled(mScrolledBounds); + mBaseUncovered = SkRegion(mScrolledBounds); +#if USE(ACCELERATED_COMPOSITING) +#if DUMP_NAV_CACHE + CachedLayer::Debug::printRootLayerAndroid(mRootLayer); +#endif + SkTDArray<SkRect> region; + mRootLayer->clipArea(®ion); + WebCore::IntSize offset( + copysign(min(max(0, mContents.width() - mScrolledBounds.width()), + abs(scrollX)), scrollX), + copysign(min(max(0, mContents.height() - mScrolledBounds.height()), + abs(scrollY)), scrollY)); + bool hasOffset = offset.width() || offset.height(); + // restrict scrollBounds to that which is not under layer + for (int index = 0; index < region.count(); index++) { + SkIRect less; + region[index].round(&less); + DBG_NAV_LOGD("less=(%d,%d,w=%d,h=%d)", less.fLeft, less.fTop, + less.width(), less.height()); + mBaseUncovered.op(less, SkRegion::kDifference_Op); + if (!hasOffset) + continue; + less.offset(offset.width(), offset.height()); + baseScrolled.op(less, SkRegion::kDifference_Op); + } + if (hasOffset) + mBaseUncovered.op(baseScrolled, SkRegion::kUnion_Op); +#endif +} + +#if DUMP_NAV_CACHE + +#define DEBUG_PRINT_BOOL(field) \ + DUMP_NAV_LOGD("// bool " #field "=%s;\n", b->field ? "true" : "false") + +#define DEBUG_PRINT_RECT(field) \ + { const WebCore::IntRect& r = b->field; \ + DUMP_NAV_LOGD("// IntRect " #field "={%d, %d, %d, %d};\n", \ + r.x(), r.y(), r.width(), r.height()); } + +CachedRoot* CachedRoot::Debug::base() const { + CachedRoot* nav = (CachedRoot*) ((char*) this - OFFSETOF(CachedRoot, mDebug)); + return nav; +} + +void CachedRoot::Debug::print() const +{ +#ifdef DUMP_NAV_CACHE_USING_PRINTF + gWriteLogMutex.lock(); + ASSERT(gNavCacheLogFile == NULL); + gNavCacheLogFile = fopen(NAV_CACHE_LOG_FILE, "a"); +#endif + CachedRoot* b = base(); + b->CachedFrame::mDebug.print(); + b->mHistory->mDebug.print(b); + DUMP_NAV_LOGD("// int mMaxXScroll=%d, mMaxYScroll=%d;\n", + b->mMaxXScroll, b->mMaxYScroll); + if (b->mRootLayer) + CachedLayer::Debug::printRootLayerAndroid(b->mRootLayer); +#ifdef DUMP_NAV_CACHE_USING_PRINTF + if (gNavCacheLogFile) + fclose(gNavCacheLogFile); + gNavCacheLogFile = NULL; + gWriteLogMutex.unlock(); +#endif +} + +#endif + +} diff --git a/Source/WebKit/android/nav/CachedRoot.h b/Source/WebKit/android/nav/CachedRoot.h new file mode 100644 index 0000000..1f8b851 --- /dev/null +++ b/Source/WebKit/android/nav/CachedRoot.h @@ -0,0 +1,142 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedRoot_H +#define CachedRoot_H + +#include "CachedFrame.h" +#include "IntRect.h" +#include "SkPicture.h" +#include "SkRegion.h" +#include "wtf/Vector.h" + +class SkRect; + +namespace WebCore { + class LayerAndroid; +} + +namespace android { + +class CachedHistory; +class CachedNode; +class FindCanvas; + +class CachedRoot : public CachedFrame { +public: + bool adjustForScroll(BestData* , Direction , WebCore::IntPoint* scrollPtr, + bool findClosest); + const SkRegion& baseUncovered() const { return mBaseUncovered; } + void calcBitBounds(const IntRect& , IntRect* ) const; + int checkForCenter(int x, int y) const; + void checkForJiggle(int* ) const; + bool checkRings(SkPicture* , const CachedNode* , + const WebCore::IntRect& testBounds) const; + WebCore::IntPoint cursorLocation() const; + int documentHeight() { return mContents.height(); } + int documentWidth() { return mContents.width(); } + void draw(FindCanvas& ) const; + const CachedNode* findAt(const WebCore::IntRect& , const CachedFrame** , + int* x, int* y, bool checkForHidden) const; + const WebCore::IntRect& focusBounds() const { return mFocusBounds; } + WebCore::IntPoint focusLocation() const; + int getAndResetSelectionEnd(); + int getAndResetSelectionStart(); + int getBlockLeftEdge(int x, int y, float scale) const; + void getSimulatedMousePosition(WebCore::IntPoint* ) const; + void init(WebCore::Frame* , CachedHistory* ); + bool innerDown(const CachedNode* , BestData* ) const; + bool innerLeft(const CachedNode* , BestData* ) const; + void innerMove(const CachedNode* ,BestData* bestData, Direction , + WebCore::IntPoint* scroll, bool firstCall); + bool innerRight(const CachedNode* , BestData* ) const; + bool innerUp(const CachedNode* , BestData* ) const; + WTF::String imageURI(int x, int y) const; + bool maskIfHidden(BestData* ) const; + const CachedNode* moveCursor(Direction , const CachedFrame** , WebCore::IntPoint* scroll); + /** + * Find the next textfield/textarea + * @param start The textfield/textarea to search from. + * @param framePtr If non-zero, returns CachedFrame* containing result. + * @return CachedNode* Next textfield/textarea or null (0) if none. + */ + const CachedNode* nextTextField(const CachedNode* start, + const CachedFrame** framePtr) const; + SkPicture* pictureAt(int* xPtr, int* yPtr, int* id) const; + SkPicture* pictureAt(int* xPtr, int* yPtr) const { + return pictureAt(xPtr, yPtr, 0); } + void reset(); + CachedHistory* rootHistory() const { return mHistory; } + const WebCore::LayerAndroid* rootLayer() const { return mRootLayer; } + bool scrollDelta(WebCore::IntRect& cursorRingBounds, Direction , int* delta); + const WebCore::IntRect& scrolledBounds() const { return mScrolledBounds; } + void setCursor(CachedFrame* , CachedNode* ); + void setCursorCache(int scrollX, int scrollY) const; // compute cached state used to find next cursor + void setCachedFocus(CachedFrame* , CachedNode* ); + void setFocusBounds(const WebCore::IntRect& r) { mFocusBounds = r; } + void setTextGeneration(int textGeneration) { mTextGeneration = textGeneration; } + void setMaxScroll(int x, int y) { mMaxXScroll = x; mMaxYScroll = y; } + void setPicture(SkPicture* picture) { mPicture = picture; } + void setRootLayer(WebCore::LayerAndroid* layer) { + mRootLayer = layer; + resetLayers(); + } + void setScrollOnly(bool state) { mScrollOnly = state; } + void setSelection(int start, int end) { mSelectionStart = start; mSelectionEnd = end; } + void setupScrolledBounds() const { mScrolledBounds = mViewBounds; } + void setVisibleRect(const WebCore::IntRect& r) { mViewBounds = r; } + int textGeneration() const { return mTextGeneration; } + int width() const { return mPicture ? mPicture->width() : 0; } +private: + friend class CachedFrame; + CachedHistory* mHistory; + SkPicture* mPicture; + WebCore::LayerAndroid* mRootLayer; + WebCore::IntRect mFocusBounds; // dom text input focus node bounds + mutable WebCore::IntRect mScrolledBounds; // view bounds + amount visible as result of scroll + int mTextGeneration; + int mMaxXScroll; + int mMaxYScroll; + // These two are ONLY used when the tree is rebuilt and the focus is a textfield/area + int mSelectionStart; + int mSelectionEnd; + // these four set up as cache for use by frameDown/Up/Left/Right etc + mutable WebCore::IntRect mCursorBounds; + mutable const CachedNode* mCursor; + mutable SkRegion mBaseUncovered; + bool mScrollOnly; +#if DUMP_NAV_CACHE +public: + class Debug { +public: + CachedRoot* base() const; + void print() const; + } mDebug; +#endif +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/DrawExtra.h b/Source/WebKit/android/nav/DrawExtra.h new file mode 100644 index 0000000..6716a65 --- /dev/null +++ b/Source/WebKit/android/nav/DrawExtra.h @@ -0,0 +1,48 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef DrawExtra_h +#define DrawExtra_h + +class SkCanvas; + +namespace WebCore { + class IntRect; + class LayerAndroid; +} + +using namespace WebCore; + +namespace android { + +class DrawExtra { +public: + virtual ~DrawExtra() {} + virtual void draw(SkCanvas* , LayerAndroid* , IntRect* ) = 0; +}; + +} + +#endif diff --git a/Source/WebKit/android/nav/FindCanvas.cpp b/Source/WebKit/android/nav/FindCanvas.cpp new file mode 100644 index 0000000..2d310b3 --- /dev/null +++ b/Source/WebKit/android/nav/FindCanvas.cpp @@ -0,0 +1,699 @@ +/* + * Copyright 2008, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define LOG_TAG "webviewglue" + +#include "config.h" +#include "FindCanvas.h" +#include "LayerAndroid.h" +#include "IntRect.h" +#include "SelectText.h" +#include "SkBlurMaskFilter.h" +#include "SkCornerPathEffect.h" +#include "SkRect.h" +#include "SkUtils.h" + +#include <utils/Log.h> + +#define INTEGER_OUTSET 2 + +namespace android { + +// MatchInfo methods +//////////////////////////////////////////////////////////////////////////////// + +MatchInfo::MatchInfo() { + m_picture = 0; +} + +MatchInfo::~MatchInfo() { + SkSafeUnref(m_picture); +} + +MatchInfo::MatchInfo(const MatchInfo& src) { + m_layerId = src.m_layerId; + m_location = src.m_location; + m_picture = src.m_picture; + SkSafeRef(m_picture); +} + +void MatchInfo::set(const SkRegion& region, SkPicture* pic, int layerId) { + SkSafeUnref(m_picture); + m_layerId = layerId; + m_location = region; + m_picture = pic; + SkASSERT(pic); + pic->ref(); +} + +// GlyphSet methods +//////////////////////////////////////////////////////////////////////////////// + +GlyphSet::GlyphSet(const SkPaint& paint, const UChar* lower, const UChar* upper, + size_t byteLength) { + SkPaint clonePaint(paint); + clonePaint.setTextEncoding(SkPaint::kUTF16_TextEncoding); + mTypeface = paint.getTypeface(); + mCount = clonePaint.textToGlyphs(lower, byteLength, NULL); + if (mCount > MAX_STORAGE_COUNT) { + mLowerGlyphs = new uint16_t[2*mCount]; + } else { + mLowerGlyphs = &mStorage[0]; + } + // Use one array, and have mUpperGlyphs point to a portion of it, + // so that we can reduce the number of new/deletes + mUpperGlyphs = mLowerGlyphs + mCount; + int count2 = clonePaint.textToGlyphs(lower, byteLength, mLowerGlyphs); + SkASSERT(mCount == count2); + count2 = clonePaint.textToGlyphs(upper, byteLength, mUpperGlyphs); + SkASSERT(mCount == count2); +} + +GlyphSet::~GlyphSet() { + // Do not need to delete mTypeface, which is not owned by us. + if (mCount > MAX_STORAGE_COUNT) { + delete[] mLowerGlyphs; + } // Otherwise, we just used local storage space, so no need to delete + // Also do not need to delete mUpperGlyphs, which simply points to a + // part of mLowerGlyphs +} + +GlyphSet& GlyphSet::operator=(GlyphSet& src) { + mTypeface = src.mTypeface; + mCount = src.mCount; + if (mCount > MAX_STORAGE_COUNT) { + mLowerGlyphs = new uint16_t[2*mCount]; + } else { + mLowerGlyphs = &mStorage[0]; + } + memcpy(mLowerGlyphs, src.mLowerGlyphs, 2*mCount*sizeof(uint16_t)); + mUpperGlyphs = mLowerGlyphs + mCount; + return *this; +} + +bool GlyphSet::characterMatches(uint16_t c, int index) { + SkASSERT(index < mCount && index >= 0); + return c == mLowerGlyphs[index] || c == mUpperGlyphs[index]; +} + +// FindCanvas methods +//////////////////////////////////////////////////////////////////////////////// + +FindCanvas::FindCanvas(int width, int height, const UChar* lower, + const UChar* upper, size_t byteLength) + : mLowerText(lower) + , mUpperText(upper) + , mLength(byteLength) + , mNumFound(0) { + // the text has been provided in read order. Reverse as needed so the + // result contains left-to-right characters. + const uint16_t* start = mLowerText; + size_t count = byteLength >> 1; + const uint16_t* end = mLowerText + count; + while (start < end) { + SkUnichar ch = SkUTF16_NextUnichar(&start); + WTF::Unicode::Direction charDirection = WTF::Unicode::direction(ch); + if (WTF::Unicode::RightToLeftArabic == charDirection + || WTF::Unicode::RightToLeft == charDirection) { + mLowerReversed.clear(); + mLowerReversed.append(mLowerText, count); + WebCore::ReverseBidi(mLowerReversed.begin(), count); + mLowerText = mLowerReversed.begin(); + mUpperReversed.clear(); + mUpperReversed.append(mUpperText, count); + WebCore::ReverseBidi(mUpperReversed.begin(), count); + mUpperText = mUpperReversed.begin(); + break; + } + } + + setBounder(&mBounder); + mOutset = -SkIntToScalar(INTEGER_OUTSET); + mMatches = new WTF::Vector<MatchInfo>(); + mWorkingIndex = 0; + mWorkingCanvas = 0; + mWorkingPicture = 0; +} + +FindCanvas::~FindCanvas() { + setBounder(NULL); + /* Just in case getAndClear was not called. */ + delete mMatches; + SkSafeUnref(mWorkingPicture); +} + +// Each version of addMatch returns a rectangle for a match. +// Not all of the parameters are used by each version. +SkRect FindCanvas::addMatchNormal(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar pos[], SkScalar y) { + const uint16_t* lineStart = glyphs - index; + /* Use the original paint, since "text" is in glyphs */ + SkScalar before = paint.measureText(lineStart, index * sizeof(uint16_t), 0); + SkRect rect; + rect.fLeft = pos[0] + before; + int countInBytes = count * sizeof(uint16_t); + rect.fRight = paint.measureText(glyphs, countInBytes, 0) + rect.fLeft; + SkPaint::FontMetrics fontMetrics; + paint.getFontMetrics(&fontMetrics); + SkScalar baseline = y; + rect.fTop = baseline + fontMetrics.fAscent; + rect.fBottom = baseline + fontMetrics.fDescent; + const SkMatrix& matrix = getTotalMatrix(); + matrix.mapRect(&rect); + // Add the text to our picture. + SkCanvas* canvas = getWorkingCanvas(); + int saveCount = canvas->save(); + canvas->concat(matrix); + canvas->drawText(glyphs, countInBytes, pos[0] + before, y, paint); + canvas->restoreToCount(saveCount); + return rect; +} + +SkRect FindCanvas::addMatchPos(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar xPos[], SkScalar /* y */) { + SkRect r; + r.setEmpty(); + const SkPoint* temp = reinterpret_cast<const SkPoint*> (xPos); + const SkPoint* points = &temp[index]; + int countInBytes = count * sizeof(uint16_t); + SkPaint::FontMetrics fontMetrics; + paint.getFontMetrics(&fontMetrics); + // Need to check each character individually, since the heights may be + // different. + for (int j = 0; j < count; j++) { + SkRect bounds; + bounds.fLeft = points[j].fX; + bounds.fRight = bounds.fLeft + + paint.measureText(&glyphs[j], sizeof(uint16_t), 0); + SkScalar baseline = points[j].fY; + bounds.fTop = baseline + fontMetrics.fAscent; + bounds.fBottom = baseline + fontMetrics.fDescent; + /* Accumulate and then add the resulting rect to mMatches */ + r.join(bounds); + } + SkMatrix matrix = getTotalMatrix(); + matrix.mapRect(&r); + SkCanvas* canvas = getWorkingCanvas(); + int saveCount = canvas->save(); + canvas->concat(matrix); + canvas->drawPosText(glyphs, countInBytes, points, paint); + canvas->restoreToCount(saveCount); + return r; +} + +SkRect FindCanvas::addMatchPosH(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar position[], SkScalar constY) { + SkRect r; + // We only care about the positions starting at the index of our match + const SkScalar* xPos = &position[index]; + // This assumes that the position array is monotonic increasing + // The left bounds will be the position of the left most character + r.fLeft = xPos[0]; + // The right bounds will be the position of the last character plus its + // width + int lastIndex = count - 1; + r.fRight = paint.measureText(&glyphs[lastIndex], sizeof(uint16_t), 0) + + xPos[lastIndex]; + // Grab font metrics to determine the top and bottom of the bounds + SkPaint::FontMetrics fontMetrics; + paint.getFontMetrics(&fontMetrics); + r.fTop = constY + fontMetrics.fAscent; + r.fBottom = constY + fontMetrics.fDescent; + const SkMatrix& matrix = getTotalMatrix(); + matrix.mapRect(&r); + SkCanvas* canvas = getWorkingCanvas(); + int saveCount = canvas->save(); + canvas->concat(matrix); + canvas->drawPosTextH(glyphs, count * sizeof(uint16_t), xPos, constY, paint); + canvas->restoreToCount(saveCount); + return r; +} + +void FindCanvas::drawLayers(LayerAndroid* layer) { +#if USE(ACCELERATED_COMPOSITING) + SkPicture* picture = layer->picture(); + if (picture) { + setLayerId(layer->uniqueId()); + drawPicture(*picture); + } + for (int i = 0; i < layer->countChildren(); i++) + drawLayers(layer->getChild(i)); +#endif +} + +void FindCanvas::drawText(const void* text, size_t byteLength, SkScalar x, + SkScalar y, const SkPaint& paint) { + findHelper(text, byteLength, paint, &x, y, &FindCanvas::addMatchNormal); +} + +void FindCanvas::drawPosText(const void* text, size_t byteLength, + const SkPoint pos[], const SkPaint& paint) { + // Pass in the first y coordinate for y so that we can check to see whether + // it is lower than the last draw call (to check if we are continuing to + // another line). + findHelper(text, byteLength, paint, (const SkScalar*) pos, pos[0].fY, + &FindCanvas::addMatchPos); +} + +void FindCanvas::drawPosTextH(const void* text, size_t byteLength, + const SkScalar xpos[], SkScalar constY, + const SkPaint& paint) { + findHelper(text, byteLength, paint, xpos, constY, + &FindCanvas::addMatchPosH); +} + +/* The current behavior is to skip substring matches. This means that in the + * string + * batbatbat + * a search for + * batbat + * will return 1 match. If the desired behavior is to return 2 matches, define + * INCLUDE_SUBSTRING_MATCHES to be 1. + */ +#define INCLUDE_SUBSTRING_MATCHES 0 + +// Need a quick way to know a maximum distance between drawText calls to know if +// they are part of the same logical phrase when searching. By crude +// inspection, half the point size seems a good guess at the width of a space +// character. +static inline SkScalar approximateSpaceWidth(const SkPaint& paint) { + return SkScalarHalf(paint.getTextSize()); +} + +void FindCanvas::findHelper(const void* text, size_t byteLength, + const SkPaint& paint, const SkScalar positions[], + SkScalar y, + SkRect (FindCanvas::*addMatch)(int index, + const SkPaint& paint, int count, + const uint16_t* glyphs, + const SkScalar positions[], SkScalar y)) { + SkASSERT(paint.getTextEncoding() == SkPaint::kGlyphID_TextEncoding); + SkASSERT(mMatches); + GlyphSet* glyphSet = getGlyphs(paint); + const int count = glyphSet->getCount(); + int numCharacters = byteLength >> 1; + const uint16_t* chars = (const uint16_t*) text; + // This block will check to see if we are continuing from another line. If + // so, the user needs to have added a space, which we do not draw. + if (mWorkingIndex) { + SkPoint newY; + getTotalMatrix().mapXY(0, y, &newY); + SkIRect workingBounds = mWorkingRegion.getBounds(); + int newYInt = SkScalarRound(newY.fY); + if (workingBounds.fTop > newYInt) { + // The new text is above the working region, so we know it's not + // a continuation. + resetWorkingCanvas(); + mWorkingIndex = 0; + mWorkingRegion.setEmpty(); + } else if (workingBounds.fBottom < newYInt) { + // Now we know that this line is lower than our partial match. + SkPaint clonePaint(paint); + clonePaint.setTextEncoding(SkPaint::kUTF8_TextEncoding); + uint16_t space; + clonePaint.textToGlyphs(" ", 1, &space); + if (glyphSet->characterMatches(space, mWorkingIndex)) { + mWorkingIndex++; + if (mWorkingIndex == count) { + // We already know that it is not clipped out because we + // checked for that before saving the working region. + insertMatchInfo(mWorkingRegion); + + resetWorkingCanvas(); + mWorkingIndex = 0; + mWorkingRegion.setEmpty(); + // We have found a match, so continue on this line from + // scratch. + } + } else { + resetWorkingCanvas(); + mWorkingIndex = 0; + mWorkingRegion.setEmpty(); + } + } + // If neither one is true, then we are likely continuing on the same + // line, but are in a new draw call because the paint has changed. In + // this case, we can continue without adding a space. + } + // j is the position in the search text + // Start off with mWorkingIndex in case we are continuing from a prior call + int j = mWorkingIndex; + // index is the position in the drawn text + int index = 0; + for ( ; index != numCharacters; index++) { + if (glyphSet->characterMatches(chars[index], j)) { + // The jth character in the search text matches the indexth position + // in the drawn text, so increase j. + j++; + if (j != count) { + continue; + } + // The last count characters match, so we found the entire + // search string. + int remaining = count - mWorkingIndex; + int matchIndex = index - remaining + 1; + // Set up a pointer to the matching text in 'chars'. + const uint16_t* glyphs = chars + matchIndex; + SkRect rect = (this->*addMatch)(matchIndex, paint, + remaining, glyphs, positions, y); + // We need an SkIRect for SkRegion operations. + SkIRect iRect; + rect.roundOut(&iRect); + // Want to outset the drawn rectangle by the same amount as + // mOutset + iRect.inset(-INTEGER_OUTSET, -INTEGER_OUTSET); + SkRegion regionToAdd(iRect); + if (!mWorkingRegion.isEmpty()) { + // If this is on the same line as our working region, make + // sure that they are close enough together that they are + // supposed to be part of the same text string. + // The width of two spaces has arbitrarily been chosen. + const SkIRect& workingBounds = mWorkingRegion.getBounds(); + if (workingBounds.fTop <= iRect.fBottom && + workingBounds.fBottom >= iRect.fTop && + SkIntToScalar(iRect.fLeft - workingBounds.fRight) > + approximateSpaceWidth(paint)) { + index = -1; // Will increase to 0 on next run + // In this case, we need to start from the beginning of + // the text being searched and our search term. + j = 0; + mWorkingIndex = 0; + mWorkingRegion.setEmpty(); + continue; + } + // Add the mWorkingRegion, which contains rectangles from + // the previous line(s). + regionToAdd.op(mWorkingRegion, SkRegion::kUnion_Op); + } + insertMatchInfo(regionToAdd); +#if INCLUDE_SUBSTRING_MATCHES + // Reset index to the location of the match and reset j to the + // beginning, so that on the next iteration of the loop, index + // will advance by 1 and we will compare the next character in + // chars to the first character in the GlyphSet. + index = matchIndex; +#endif + // Whether the clip contained it or not, we need to start over + // with our recording canvas + resetWorkingCanvas(); + } else { + // Index needs to be set to index - j + 1. + // This is a ridiculous case, but imagine the situation where the + // user is looking for the string "jjog" in the drawText call for + // "jjjog". The first two letters match. However, when the index + // is 2, and we discover that 'o' and 'j' do not match, we should go + // back to 1, where we do, in fact, have a match + // FIXME: This does not work if (as in our example) "jj" is in one + // draw call and "jog" is in the next. Doing so would require a + // stack, keeping track of multiple possible working indeces and + // regions. This is likely an uncommon case. + index = index - j; // index will be increased by one on the next + // iteration + } + // We reach here in one of two cases: + // 1) We just completed a match, so any working rectangle/index is no + // longer needed, and we will start over from the beginning + // 2) The glyphs do not match, so we start over at the beginning of + // the search string. + j = 0; + mWorkingIndex = 0; + mWorkingRegion.setEmpty(); + } + // At this point, we have searched all of the text in the current drawText + // call. + // Keep track of a partial match that may start on this line. + if (j > 0) { // if j is greater than 0, we have a partial match + int relativeCount = j - mWorkingIndex; // Number of characters in this + // part of the match. + int partialIndex = index - relativeCount; // Index that starts our + // partial match. + const uint16_t* partialGlyphs = chars + partialIndex; + SkRect partial = (this->*addMatch)(partialIndex, paint, relativeCount, + partialGlyphs, positions, y); + partial.inset(mOutset, mOutset); + SkIRect dest; + partial.roundOut(&dest); + mWorkingRegion.op(dest, SkRegion::kUnion_Op); + mWorkingIndex = j; + return; + } + // This string doesn't go into the next drawText, so reset our working + // variables + mWorkingRegion.setEmpty(); + mWorkingIndex = 0; +} + +SkCanvas* FindCanvas::getWorkingCanvas() { + if (!mWorkingPicture) { + mWorkingPicture = new SkPicture; + mWorkingCanvas = mWorkingPicture->beginRecording(0,0); + } + return mWorkingCanvas; +} + +GlyphSet* FindCanvas::getGlyphs(const SkPaint& paint) { + SkTypeface* typeface = paint.getTypeface(); + GlyphSet* end = mGlyphSets.end(); + for (GlyphSet* ptr = mGlyphSets.begin();ptr != end; ptr++) { + if (ptr->getTypeface() == typeface) { + return ptr; + } + } + + GlyphSet set(paint, mLowerText, mUpperText, mLength); + *mGlyphSets.append() = set; + return &(mGlyphSets.top()); +} + +void FindCanvas::insertMatchInfo(const SkRegion& region) { + mNumFound++; + mWorkingPicture->endRecording(); + MatchInfo matchInfo; + mMatches->append(matchInfo); + LOGD("%s region=%p pict=%p layer=%d", __FUNCTION__, + ®ion, mWorkingPicture, mLayerId); + mMatches->last().set(region, mWorkingPicture, mLayerId); +} + +void FindCanvas::resetWorkingCanvas() { + mWorkingPicture->unref(); + mWorkingPicture = 0; + // Do not need to reset mWorkingCanvas itself because we only access it via + // getWorkingCanvas. +} + +// This function sets up the paints that are used to draw the matches. +void FindOnPage::setUpFindPaint() { + // Set up the foreground paint + m_findPaint.setAntiAlias(true); + const SkScalar roundiness = SkIntToScalar(2); + SkCornerPathEffect* cornerEffect = new SkCornerPathEffect(roundiness); + m_findPaint.setPathEffect(cornerEffect); + m_findPaint.setARGB(255, 132, 190, 0); + + // Set up the background blur paint. + m_findBlurPaint.setAntiAlias(true); + m_findBlurPaint.setARGB(204, 0, 0, 0); + m_findBlurPaint.setPathEffect(cornerEffect); + cornerEffect->unref(); + SkMaskFilter* blurFilter = SkBlurMaskFilter::Create(SK_Scalar1, + SkBlurMaskFilter::kNormal_BlurStyle); + m_findBlurPaint.setMaskFilter(blurFilter)->unref(); + m_isFindPaintSetUp = true; +} + +IntRect FindOnPage::currentMatchBounds() const { + IntRect noBounds = IntRect(0, 0, 0, 0); + if (!m_matches || !m_matches->size()) + return noBounds; + MatchInfo& info = (*m_matches)[m_findIndex]; + // FIXME: this should test if the match in the layer is visible + if (info.isInLayer()) + return noBounds; + return info.getLocation().getBounds(); +} + +bool FindOnPage::currentMatchIsInLayer() const { + if (!m_matches || !m_matches->size()) + return false; + MatchInfo& info = (*m_matches)[m_findIndex]; + return info.isInLayer(); +} + +// This function is only used by findNext and setMatches. In it, we store +// upper left corner of the match specified by m_findIndex in +// m_currentMatchLocation. +void FindOnPage::storeCurrentMatchLocation() { + SkASSERT(m_findIndex < m_matches->size()); + const SkIRect& bounds = (*m_matches)[m_findIndex].getLocation().getBounds(); + m_currentMatchLocation.set(bounds.fLeft, bounds.fTop); + m_hasCurrentLocation = true; +} + +// Put a cap on the number of matches to draw. If the current page has more +// matches than this, only draw the focused match. +#define MAX_NUMBER_OF_MATCHES_TO_DRAW 101 + +void FindOnPage::draw(SkCanvas* canvas, LayerAndroid* layer, IntRect* inval) { + if (!m_lastBounds.isEmpty()) { + inval->unite(m_lastBounds); + m_lastBounds.setEmpty(); + } + if (!m_hasCurrentLocation || !m_matches || !m_matches->size()) + return; + int layerId = layer->uniqueId(); + if (m_findIndex >= m_matches->size()) + m_findIndex = 0; + const MatchInfo& matchInfo = (*m_matches)[m_findIndex]; + const SkRegion& currentMatchRegion = matchInfo.getLocation(); + + // Set up the paints used for drawing the matches + if (!m_isFindPaintSetUp) + setUpFindPaint(); + + // Draw the current match + if (matchInfo.layerId() == layerId) { + drawMatch(currentMatchRegion, canvas, true); + // Now draw the picture, so that it shows up on top of the rectangle + int saveCount = canvas->save(); + SkPath matchPath; + currentMatchRegion.getBoundaryPath(&matchPath); + canvas->clipPath(matchPath); + canvas->drawPicture(*matchInfo.getPicture()); + canvas->restoreToCount(saveCount); + const SkMatrix& matrix = canvas->getTotalMatrix(); + const SkRect& localBounds = matchPath.getBounds(); + SkRect globalBounds; + matrix.mapRect(&globalBounds, localBounds); + globalBounds.round(&m_lastBounds); + inval->unite(m_lastBounds); + } + // Draw the rest + unsigned numberOfMatches = m_matches->size(); + if (numberOfMatches > 1 + && numberOfMatches < MAX_NUMBER_OF_MATCHES_TO_DRAW) { + for(unsigned i = 0; i < numberOfMatches; i++) { + // The current match has already been drawn + if (i == m_findIndex) + continue; + if ((*m_matches)[i].layerId() != layerId) + continue; + const SkRegion& region = (*m_matches)[i].getLocation(); + // Do not draw matches which intersect the current one, or if it is + // offscreen + if (currentMatchRegion.intersects(region)) + continue; + SkRect bounds; + bounds.set(region.getBounds()); + if (canvas->quickReject(bounds, SkCanvas::kAA_EdgeType)) + continue; + drawMatch(region, canvas, false); + } + } +} + +// Draw the match specified by region to the canvas. +void FindOnPage::drawMatch(const SkRegion& region, SkCanvas* canvas, + bool focused) +{ + // For the match which has focus, use a filled paint. For the others, use + // a stroked paint. + if (focused) { + m_findPaint.setStyle(SkPaint::kFill_Style); + m_findBlurPaint.setStyle(SkPaint::kFill_Style); + } else { + m_findPaint.setStyle(SkPaint::kStroke_Style); + m_findPaint.setStrokeWidth(SK_Scalar1); + m_findBlurPaint.setStyle(SkPaint::kStroke_Style); + m_findBlurPaint.setStrokeWidth(SkIntToScalar(2)); + } + // Find the path for the current match + SkPath matchPath; + region.getBoundaryPath(&matchPath); + // Offset the path for a blurred shadow + SkPath blurPath; + matchPath.offset(SK_Scalar1, SkIntToScalar(2), &blurPath); + int saveCount = 0; + if (!focused) { + saveCount = canvas->save(); + canvas->clipPath(matchPath, SkRegion::kDifference_Op); + } + // Draw the blurred background + canvas->drawPath(blurPath, m_findBlurPaint); + if (!focused) + canvas->restoreToCount(saveCount); + // Draw the foreground + canvas->drawPath(matchPath, m_findPaint); +} + +void FindOnPage::findNext(bool forward) +{ + if (!m_matches || !m_matches->size() || !m_hasCurrentLocation) + return; + if (forward) { + m_findIndex++; + if (m_findIndex == m_matches->size()) + m_findIndex = 0; + } else { + if (m_findIndex == 0) { + m_findIndex = m_matches->size() - 1; + } else { + m_findIndex--; + } + } + storeCurrentMatchLocation(); +} + +// With this call, WebView takes ownership of matches, and is responsible for +// deleting it. +void FindOnPage::setMatches(WTF::Vector<MatchInfo>* matches) +{ + if (m_matches) + delete m_matches; + m_matches = matches; + if (m_matches->size()) { + if (m_hasCurrentLocation) { + for (unsigned i = 0; i < m_matches->size(); i++) { + const SkIRect& rect = (*m_matches)[i].getLocation().getBounds(); + if (rect.fLeft == m_currentMatchLocation.fX + && rect.fTop == m_currentMatchLocation.fY) { + m_findIndex = i; + return; + } + } + } + // If we did not have a stored location, or if we were unable to restore + // it, store the new one. + m_findIndex = 0; + storeCurrentMatchLocation(); + } else { + m_hasCurrentLocation = false; + } +} + +} diff --git a/Source/WebKit/android/nav/FindCanvas.h b/Source/WebKit/android/nav/FindCanvas.h new file mode 100644 index 0000000..76ee1e2 --- /dev/null +++ b/Source/WebKit/android/nav/FindCanvas.h @@ -0,0 +1,255 @@ +/* + * Copyright 2008, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef Find_Canvas_h +#define Find_Canvas_h + +#include "DrawExtra.h" +#include "IntRect.h" +#include "SkBounder.h" +#include "SkCanvas.h" +#include "SkPicture.h" +#include "SkRect.h" +#include "SkRegion.h" +#include "SkTDArray.h" + +#include <unicode/umachine.h> +#include <wtf/Vector.h> + +namespace android { + +// Stores both region information and an SkPicture of the match, so that the +// region can be drawn, followed by drawing the matching text on top of it. +// This class owns its SkPicture +class MatchInfo { +public: + MatchInfo(); + ~MatchInfo(); + MatchInfo(const MatchInfo& src); + const SkRegion& getLocation() const { return m_location; } + // Return a pointer to our picture, representing the matching text. Does + // not transfer ownership of the picture. + SkPicture* getPicture() const { return m_picture; } + // This will make a copy of the region, and increase the ref count on the + // SkPicture. If this MatchInfo already had one, unref it. + bool isInLayer() const { return m_layerId >= 0; } + int layerId() const { return m_layerId; } + void set(const SkRegion& region, SkPicture* pic, int layerId); +private: + MatchInfo& operator=(MatchInfo& src); + SkRegion m_location; + SkPicture* m_picture; + int m_layerId; +}; + +// A class containing a typeface for reference, the length in glyphs, and +// the upper and lower case representations of the search string. +class GlyphSet { +public: + GlyphSet(const SkPaint& paint, const UChar* lower, const UChar* upper, + size_t byteLength); + ~GlyphSet(); + GlyphSet& operator=(GlyphSet& src); + + // Return true iff c matches one of our glyph arrays at index + bool characterMatches(uint16_t c, int index); + + int getCount() const { return mCount; } + + const SkTypeface* getTypeface() const { return mTypeface; } + +private: + // Disallow copy constructor + GlyphSet(GlyphSet& src) { } + + // mTypeface is used for comparison only + const SkTypeface* mTypeface; + // mLowerGlyphs points to all of our storage space: the lower set followed + // by the upper set. mUpperGlyphs is purely a convenience pointer to the + // start of the upper case glyphs. + uint16_t* mLowerGlyphs; + uint16_t* mUpperGlyphs; + // mCount is the number of glyphs of the search string. Must be the same + // for both the lower case set and the upper case set. + int mCount; + + // Arbitrarily chose the maximum storage to use in the GlyphSet. This is + // based on the length of the word being searched. If users are always + // searching for 3 letter words (for example), an ideal number would be 3. + // Each time the user searches for a word longer than (in this case, 3) that + // will result in calling new/delete. + enum Storage { + MAX_STORAGE_COUNT = 16 + }; + // In order to eliminate new/deletes, create storage that will be enough + // most of the time + uint16_t mStorage[2*MAX_STORAGE_COUNT]; +}; + +class FindBounder : public SkBounder { +public: + FindBounder() {} + ~FindBounder() {} +protected: + virtual bool onIRect(const SkIRect&) { return false; } +}; + +class FindCanvas : public SkCanvas { +public: + FindCanvas(int width, int height, const UChar* , const UChar*, + size_t byteLength); + + virtual ~FindCanvas(); + + virtual void drawText(const void* text, size_t byteLength, SkScalar x, + SkScalar y, const SkPaint& paint); + + /* FIXME: This path has not been tested. */ + virtual void drawPosText(const void* text, size_t byteLength, + const SkPoint pos[], const SkPaint& paint); + + /* Also untested */ + virtual void drawPosTextH(const void* text, size_t byteLength, + const SkScalar xpos[], SkScalar constY, + const SkPaint& paint); + + /* Not sure what to do here or for drawTextOnPathHV */ + virtual void drawTextOnPath(const void* text, size_t byteLength, + const SkPath& path, const SkMatrix* matrix, + const SkPaint& paint) { + } + + void drawLayers(LayerAndroid* ); + int found() const { return mNumFound; } + void setLayerId(int layerId) { mLayerId = layerId; } + + // This method detaches our array of matches and passes ownership to + // the caller, who is then responsible for deleting them. + WTF::Vector<MatchInfo>* detachMatches() { + WTF::Vector<MatchInfo>* array = mMatches; + mMatches = NULL; + return array; + } + +private: + // These calls are made by findHelper to store information about each match + // that is found. They return a rectangle which is used to highlight the + // match. They also add to our SkPicture (which can be accessed with + // getDrawnMatches) a draw of each match. This way it can be drawn after + // the rectangle. The rect that is returned is in device coordinates. + SkRect addMatchNormal(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar pos[], SkScalar y); + + SkRect addMatchPos(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar xPos[], SkScalar /* y */); + + SkRect addMatchPosH(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar position[], SkScalar constY); + + // Helper for each of our draw calls + void findHelper(const void* text, size_t byteLength, const SkPaint& paint, + const SkScalar xPos[], SkScalar y, + SkRect (FindCanvas::*addMatch)(int index, + const SkPaint& paint, int count, const uint16_t* glyphs, + const SkScalar pos[], SkScalar y)); + + // If we already have a working canvas, grab it. Otherwise, create a new + // one. + SkCanvas* getWorkingCanvas(); + + // Return the set of glyphs and its count for the text being searched for + // and the parameter paint. If one has already been created and cached + // for this paint, use it. If not, create a new one and cache it. + GlyphSet* getGlyphs(const SkPaint& paint); + + // Store all the accumulated info about a match in our vector. + void insertMatchInfo(const SkRegion& region); + + // Throw away our cumulative information about our working SkCanvas. After + // this call, next call to getWorkingCanvas will create a new one. + void resetWorkingCanvas(); + + // Since we may transfer ownership of this array (see detachRects()), we + // hold a pointer to the array instead of just the array itself. + WTF::Vector<MatchInfo>* mMatches; + const UChar* mLowerText; + const UChar* mUpperText; + Vector<UChar> mLowerReversed; + Vector<UChar> mUpperReversed; + size_t mLength; + FindBounder mBounder; + int mNumFound; + SkScalar mOutset; + SkTDArray<GlyphSet> mGlyphSets; + + SkPicture* mWorkingPicture; + SkCanvas* mWorkingCanvas; + SkRegion mWorkingRegion; + int mWorkingIndex; + int mLayerId; +}; + +class FindOnPage : public DrawExtra { +public: + FindOnPage() { + m_matches = 0; + m_hasCurrentLocation = false; + m_isFindPaintSetUp = false; + m_lastBounds.setEmpty(); + } + virtual ~FindOnPage() { delete m_matches; } + void clearCurrentLocation() { m_hasCurrentLocation = false; } + IntRect currentMatchBounds() const; + int currentMatchIndex() const { return m_findIndex; } + bool currentMatchIsInLayer() const; + virtual void draw(SkCanvas* , LayerAndroid* , IntRect* ); + void findNext(bool forward); + bool isCurrentLocationValid() { return m_hasCurrentLocation; } + void setMatches(WTF::Vector<MatchInfo>* matches); +private: + void drawMatch(const SkRegion& region, SkCanvas* canvas, bool focused); + void setUpFindPaint(); + void storeCurrentMatchLocation(); + WTF::Vector<MatchInfo>* m_matches; + // Stores the location of the current match. + SkIPoint m_currentMatchLocation; + // Tells whether the value in m_currentMatchLocation is valid. + bool m_hasCurrentLocation; + // Tells whether we have done the setup to draw the Find matches. + bool m_isFindPaintSetUp; + // Paint used to draw our Find matches. + SkPaint m_findPaint; + // Paint used for the background of our Find matches. + SkPaint m_findBlurPaint; + unsigned m_findIndex; + SkIRect m_lastBounds; +}; + +} + +#endif // Find_Canvas_h diff --git a/Source/WebKit/android/nav/ParseCanvas.h b/Source/WebKit/android/nav/ParseCanvas.h new file mode 100644 index 0000000..9b7a889 --- /dev/null +++ b/Source/WebKit/android/nav/ParseCanvas.h @@ -0,0 +1,52 @@ +/* + * Copyright 2010, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef PARSE_CANVAS_H +#define PARSE_CANVAS_H + +#include "SkCanvas.h" + +namespace android { + +class ParseCanvas : public SkCanvas { +protected: + virtual ~ParseCanvas() { + setBounder(0); + } + + // Pictures parsed for content never want to create offscreen bitmaps. + // Instead, just save and restore the canvas state -- this also keeps + // the picture contents at their original coordinates. + virtual int saveLayer(const SkRect* , const SkPaint* , SaveFlags flags) { + return INHERITED::save(flags); + } +private: + typedef SkCanvas INHERITED; +}; + +} + +#endif + diff --git a/Source/WebKit/android/nav/SelectText.cpp b/Source/WebKit/android/nav/SelectText.cpp new file mode 100644 index 0000000..f8ea799 --- /dev/null +++ b/Source/WebKit/android/nav/SelectText.cpp @@ -0,0 +1,1983 @@ +/* + * Copyright 2008, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define LOG_TAG "webviewglue" + +#include "CachedPrefix.h" +#include "BidiResolver.h" +#include "CachedRoot.h" +#include "LayerAndroid.h" +#include "ParseCanvas.h" +#include "SelectText.h" +#include "SkBitmap.h" +#include "SkBounder.h" +#include "SkGradientShader.h" +#include "SkMatrix.h" +#include "SkPicture.h" +#include "SkPixelXorXfermode.h" +#include "SkPoint.h" +#include "SkRect.h" +#include "SkRegion.h" +#include "SkUtils.h" +#include "TextRun.h" + +#ifdef DEBUG_NAV_UI +#include <wtf/text/CString.h> +#endif + +#define VERBOSE_LOGGING 0 +// #define EXTRA_NOISY_LOGGING 1 + +// TextRunIterator has been copied verbatim from GraphicsContext.cpp +namespace WebCore { + +class TextRunIterator { +public: + TextRunIterator() + : m_textRun(0) + , m_offset(0) + { + } + + TextRunIterator(const TextRun* textRun, unsigned offset) + : m_textRun(textRun) + , m_offset(offset) + { + } + + TextRunIterator(const TextRunIterator& other) + : m_textRun(other.m_textRun) + , m_offset(other.m_offset) + { + } + + unsigned offset() const { return m_offset; } + void increment() { m_offset++; } + bool atEnd() const { return !m_textRun || m_offset >= m_textRun->length(); } + UChar current() const { return (*m_textRun)[m_offset]; } + WTF::Unicode::Direction direction() const { return atEnd() ? WTF::Unicode::OtherNeutral : WTF::Unicode::direction(current()); } + + bool operator==(const TextRunIterator& other) + { + return m_offset == other.m_offset && m_textRun == other.m_textRun; + } + + bool operator!=(const TextRunIterator& other) { return !operator==(other); } + +private: + const TextRun* m_textRun; + int m_offset; +}; + +// ReverseBidi is a trimmed-down version of GraphicsContext::drawBidiText() +void ReverseBidi(UChar* chars, int len) { + using namespace WTF::Unicode; + WTF::Vector<UChar> result; + result.reserveCapacity(len); + TextRun run(chars, len); + BidiResolver<TextRunIterator, BidiCharacterRun> bidiResolver; + bidiResolver.setStatus(BidiStatus(LeftToRight, LeftToRight, LeftToRight, + BidiContext::create(0, LeftToRight, false))); + bidiResolver.setPosition(TextRunIterator(&run, 0)); + bidiResolver.createBidiRunsForLine(TextRunIterator(&run, len)); + if (!bidiResolver.runCount()) + return; + BidiCharacterRun* bidiRun = bidiResolver.firstRun(); + while (bidiRun) { + int bidiStart = bidiRun->start(); + int bidiStop = bidiRun->stop(); + int size = result.size(); + int bidiCount = bidiStop - bidiStart; + result.append(chars + bidiStart, bidiCount); + if (bidiRun->level() % 2) { + UChar* start = &result[size]; + UChar* end = start + bidiCount; + // reverse the order of any RTL substrings + while (start < end) { + UChar temp = *start; + *start++ = *--end; + *end = temp; + } + start = &result[size]; + end = start + bidiCount - 1; + // if the RTL substring had a surrogate pair, restore its order + while (start < end) { + UChar trail = *start++; + if (!U16_IS_SURROGATE(trail)) + continue; + start[-1] = *start; // lead + *start++ = trail; + } + } + bidiRun = bidiRun->next(); + } + bidiResolver.deleteRuns(); + memcpy(chars, &result[0], len * sizeof(UChar)); +} + +} + +namespace android { + +#define HYPHEN_MINUS 0x2D // ASCII hyphen +#define SOLIDUS 0x2F // ASCII slash +#define REVERSE_SOLIDUS 0x5C // ASCII backslash +#define HYPHEN 0x2010 // unicode hyphen, first in range of dashes +#define HORZ_BAR 0x2015 // unicode horizontal bar, last in range of dashes +#define TOUCH_SLOP 10 // additional distance from character rect when hit + +class CommonCheck : public SkBounder { +public: + CommonCheck(const SkIRect& area) + : mArea(area) + , mLastUni(0) + { + mLastGlyph.fGlyphID = static_cast<uint16_t>(-1); + mLastCandidate.fGlyphID = static_cast<uint16_t>(-1); + mMatrix.reset(); + reset(); + } + + /* called only while the picture is parsed */ + int base() { + if (mBase == INT_MAX) { + SkPoint result; + mMatrix.mapXY(0, mY, &result); + mBase = SkScalarFloor(result.fY); + } + return mBase; + } + + /* called only while the picture is parsed */ + int bottom() { + if (mBottom == INT_MAX) { + SkPoint result; + SkPaint::FontMetrics metrics; + mPaint.getFontMetrics(&metrics); + mMatrix.mapXY(0, metrics.fDescent + mY, &result); + mBottom = SkScalarCeil(result.fY); + } + return mBottom; + } + +#if DEBUG_NAV_UI + // make current (possibily uncomputed) value visible for debugging + int bottomDebug() const + { + return mBottom; + } +#endif + + bool addNewLine(const SkBounder::GlyphRec& rec) + { + SkFixed lineSpacing = SkFixedAbs(mLastGlyph.fLSB.fY - rec.fLSB.fY); + SkFixed lineHeight = SkIntToFixed(bottom() - top()); + return lineSpacing >= lineHeight + (lineHeight >> 1); // 1.5 + } + + bool addSpace(const SkBounder::GlyphRec& rec) + { + bool newBaseLine = mLastGlyph.fLSB.fY != rec.fLSB.fY; + if (((mLastUni >= HYPHEN && mLastUni <= HORZ_BAR) + || mLastUni == HYPHEN_MINUS || mLastUni == SOLIDUS + || mLastUni == REVERSE_SOLIDUS) && newBaseLine) + { + return false; + } + return isSpace(rec); + } + + void finishGlyph() + { + mLastGlyph = mLastCandidate; + mLastUni = mLastUniCandidate; + mLastPaint = mLastPaintCandidate; + } + + const SkIRect& getArea() const { + return mArea; + } + + /* called only while the picture is parsed */ + SkUnichar getUniChar(const SkBounder::GlyphRec& rec) + { + SkUnichar unichar; + SkPaint::TextEncoding save = mPaint.getTextEncoding(); + mPaint.setTextEncoding(SkPaint::kUTF16_TextEncoding); + mPaint.glyphsToUnichars(&rec.fGlyphID, 1, &unichar); + mPaint.setTextEncoding(save); + return unichar; + } + + bool isSpace(const SkBounder::GlyphRec& rec) + { + if (mLastGlyph.fGlyphID == static_cast<uint16_t>(-1)) + return true; + DBG_NAV_LOGD("mLastGlyph=((%g, %g),(%g, %g), %d)" + " rec=((%g, %g),(%g, %g), %d) mLastUni=0x%04x '%c'", + SkFixedToScalar(mLastGlyph.fLSB.fX), + SkFixedToScalar(mLastGlyph.fLSB.fY), + SkFixedToScalar(mLastGlyph.fRSB.fX), + SkFixedToScalar(mLastGlyph.fRSB.fY), mLastGlyph.fGlyphID, + SkFixedToScalar(rec.fLSB.fX), SkFixedToScalar(rec.fLSB.fY), + SkFixedToScalar(rec.fRSB.fX), SkFixedToScalar(rec.fRSB.fY), + rec.fGlyphID, + mLastUni, mLastUni && mLastUni < 0x7f ? mLastUni : '?'); + bool newBaseLine = mLastGlyph.fLSB.fY != rec.fLSB.fY; + if (newBaseLine) + return true; + SkFixed gapOne = mLastGlyph.fLSB.fX - rec.fRSB.fX; + SkFixed gapTwo = rec.fLSB.fX - mLastGlyph.fRSB.fX; + if (gapOne < 0 && gapTwo < 0) + return false; // overlaps + const SkBounder::GlyphRec& first = mLastGlyph.fLSB.fX < rec.fLSB.fX + ? mLastGlyph : rec; + const SkBounder::GlyphRec& second = mLastGlyph.fLSB.fX < rec.fLSB.fX + ? rec : mLastGlyph; + uint16_t firstGlyph = first.fGlyphID; + SkScalar firstWidth = mLastPaint.measureText(&firstGlyph, sizeof(firstGlyph)); + SkFixed ceilWidth = SkIntToFixed(SkScalarCeil(firstWidth)); + SkFixed posNoSpace = first.fLSB.fX + ceilWidth; + SkFixed ceilSpace = SkIntToFixed(SkFixedCeil(minSpaceWidth(mLastPaint))); + SkFixed posWithSpace = posNoSpace + ceilSpace; + SkFixed diffNoSpace = SkFixedAbs(second.fLSB.fX - posNoSpace); + SkFixed diffWithSpace = SkFixedAbs(second.fLSB.fX - posWithSpace); + DBG_NAV_LOGD("second=%g width=%g (%g) noSpace=%g (%g) withSpace=%g (%g)" + " fontSize=%g", + SkFixedToScalar(second.fLSB.fX), + firstWidth, SkFixedToScalar(ceilWidth), + SkFixedToScalar(posNoSpace), SkFixedToScalar(diffNoSpace), + SkFixedToScalar(posWithSpace), SkFixedToScalar(diffWithSpace), + mLastPaint.getTextSize()); + return diffWithSpace <= diffNoSpace; + } + + SkFixed minSpaceWidth(SkPaint& paint) + { + if (mMinSpaceWidth == SK_FixedMax) { + SkPaint::TextEncoding save = paint.getTextEncoding(); + paint.setTextEncoding(SkPaint::kUTF8_TextEncoding); + SkScalar width = paint.measureText(" ", 1); + mMinSpaceWidth = SkScalarToFixed(width * mMatrix.getScaleX()); + paint.setTextEncoding(save); + DBG_NAV_LOGV("width=%g matrix sx/sy=(%g, %g) tx/ty=(%g, %g)" + " mMinSpaceWidth=%g", width, + mMatrix.getScaleX(), mMatrix.getScaleY(), + mMatrix.getTranslateX(), mMatrix.getTranslateY(), + SkFixedToScalar(mMinSpaceWidth)); + } + return mMinSpaceWidth; + } + + void recordGlyph(const SkBounder::GlyphRec& rec) + { + mLastCandidate = rec; + mLastUniCandidate = getUniChar(rec); + mLastPaintCandidate = mPaint; + } + + void reset() + { + mMinSpaceWidth = SK_FixedMax; // mark as uninitialized + mBase = mBottom = mTop = INT_MAX; // mark as uninitialized + } + + void set(CommonCheck& check) + { + mLastGlyph = check.mLastGlyph; + mLastUni = check.mLastUni; + mMatrix = check.mMatrix; + mLastPaint = check.mLastPaint; + reset(); + } + + void setGlyph(CommonCheck& check) + { + mLastGlyph = check.mLastGlyph; + mLastUni = check.mLastUni; + mLastPaint = check.mLastPaint; + } + + void setUp(const SkPaint& paint, const SkMatrix& matrix, SkScalar y, + const void* text) + { + mMatrix = matrix; + mPaint = paint; + mText = static_cast<const uint16_t*>(text); + mY = y; + reset(); + } + + /* called only while the picture is parsed */ + int top() { + if (mTop == INT_MAX) { + SkPoint result; + SkPaint::FontMetrics metrics; + mPaint.getFontMetrics(&metrics); + mMatrix.mapXY(0, metrics.fAscent + mY, &result); + mTop = SkScalarFloor(result.fY); + } + return mTop; + } + +#if DEBUG_NAV_UI + // make current (possibily uncomputed) value visible for debugging + int topDebug() const + { + return mTop; + } +#endif + +protected: + SkIRect mArea; + SkBounder::GlyphRec mLastCandidate; + SkBounder::GlyphRec mLastGlyph; + SkPaint mLastPaint; // available after picture has been parsed + SkPaint mLastPaintCandidate; // associated with candidate glyph + SkUnichar mLastUni; + SkUnichar mLastUniCandidate; + SkMatrix mMatrix; + SkPaint mPaint; // only set up while the picture is parsed + const uint16_t* mText; + SkScalar mY; +private: + int mBase; + int mBottom; + SkFixed mMinSpaceWidth; + int mTop; + friend class EdgeCheck; +}; + +// generate the limit area for the new selection +class LineCheck : public CommonCheck { +public: + LineCheck(int x, int y, const SkIRect& area) + : INHERITED(area) + , mX(x) + , mY(y) + , mInBetween(false) + { + mLast.setEmpty(); + } + + void finish(const SkRegion& selectedRgn) + { + if (!mParagraphs.count() && mLast.isEmpty()) + return; + processLine(); + bool above = false; + bool below = false; + bool selected = false; + SkRegion localRgn(selectedRgn); + localRgn.translate(-mArea.fLeft, -mArea.fTop, &localRgn); + DBG_NAV_LOGD("localRgn=(%d,%d,%d,%d)", + localRgn.getBounds().fLeft, localRgn.getBounds().fTop, + localRgn.getBounds().fRight, localRgn.getBounds().fBottom); + for (int index = 0; index < mParagraphs.count(); index++) { + const SkIRect& rect = mParagraphs[index]; + bool localSelected = localRgn.intersects(rect); + DBG_NAV_LOGD("[%d] rect=(%d,%d,%d,%d)", index, rect.fLeft, rect.fTop, + rect.fRight, rect.fBottom); + if (localSelected) { + DBG_NAV_LOGD("[%d] localSelected=true", index); + *mSelected.append() = rect; + } + if (rect.fRight <= mX || rect.fLeft >= mX) + continue; + if (mY > rect.fBottom) { + below = true; + selected |= localSelected; + DBG_NAV_LOGD("[%d] below=true localSelected=%s", index, + localSelected ? "true" : "false"); + } + if (mY < rect.fTop) { + above = true; + selected |= localSelected; + DBG_NAV_LOGD("[%d] above=true localSelected=%s", index, + localSelected ? "true" : "false"); + } + } + DBG_NAV_LOGD("mX=%d mY=%d above=%s below=%s selected=%s", + mX, mY, above ? "true" : "false", below ? "true" : "false", + selected ? "true" : "false"); + mInBetween = above && below && selected; + } + + bool inBetween() const + { + return mInBetween; + } + + bool inColumn(const SkIRect& test) const + { + for (int index = 0; index < mSelected.count(); index++) { + const SkIRect& rect = mSelected[index]; + if (rect.fRight > test.fLeft && rect.fLeft < test.fRight) + return true; + } + return false; + } + + bool inColumn(int x, int y) const + { + for (int index = 0; index < mSelected.count(); index++) { + const SkIRect& rect = mSelected[index]; + if (rect.contains(x, y)) + return true; + } + return false; + } + + virtual bool onIRect(const SkIRect& rect) + { + SkIRect bounds; + bounds.set(rect.fLeft, top(), rect.fRight, bottom()); + // assume that characters must be consecutive to describe spaces + // (i.e., don't join rects drawn at different times) + if (bounds.fTop != mLast.fTop || bounds.fBottom != mLast.fBottom + || bounds.fLeft > mLast.fRight + minSpaceWidth(mPaint) + || bounds.fLeft < mLast.fLeft) { + processLine(); + mLast = bounds; + } else + mLast.join(bounds); + return false; + } + + void processLine() + { + // assume line spacing of 1.5 + int lineHeight = bottom() - top(); + mLast.inset(0, -lineHeight >> 1); + // collect arrays of rectangles making up glyphs below or above this one + for (int index = 0; index < mParagraphs.count(); index++) { + SkIRect& rect = mParagraphs[index]; + if (SkIRect::Intersects(rect, mLast)) { + rect.join(mLast); + return; + } + } + *mParagraphs.append() = mLast; + } + +protected: + int mX; + int mY; + SkIRect mLast; + SkTDArray<SkIRect> mParagraphs; + SkTDArray<SkIRect> mSelected; + bool mInBetween; +private: + typedef CommonCheck INHERITED; +}; + +class SelectText::FirstCheck : public CommonCheck { +public: + FirstCheck(int x, int y, const SkIRect& area) + : INHERITED(area) + , mLineCheck(0) + , mFocusX(x - area.fLeft) + , mFocusY(y - area.fTop) + , mBestInColumn(false) + , mRecordGlyph(false) + { + reset(); + } + + const SkIRect& adjustedBounds(int* base) + { + *base = mBestBase + mArea.fTop; + mBestBounds.offset(mArea.fLeft, mArea.fTop); + DBG_NAV_LOGD("FirstCheck mBestBounds:(%d, %d, %d, %d) mTop=%d mBottom=%d", + mBestBounds.fLeft, mBestBounds.fTop, mBestBounds.fRight, + mBestBounds.fBottom, topDebug(), bottomDebug()); + return mBestBounds; + } + + int focusX() const { return mFocusX; } + int focusY() const { return mFocusY; } + + virtual bool onIRectGlyph(const SkIRect& rect, + const SkBounder::GlyphRec& rec) + { + /* compute distance from rectangle center. + * centerX = (rect.L + rect.R) / 2 + * multiply centerX and comparison x by 2 to retain better precision + */ + SkIRect testBounds = {rect.fLeft, top(), rect.fRight, bottom()}; + // dx and dy are the distances from the tested edge + // The edge distance is paramount if the test point is far away + int dx = std::max(0, std::max(testBounds.fLeft - mFocusX, + mFocusX - testBounds.fRight)); + int dy = std::max(0, std::max(testBounds.fTop - mFocusY, + mFocusY - testBounds.fBottom)); + bool testInColumn = false; + bool inBetween = false; + bool inFocus = false; + if (mLineCheck) { + testInColumn = mLineCheck->inColumn(testBounds); + inBetween = mLineCheck->inBetween(); + inFocus = mLineCheck->inColumn(mFocusX, mFocusY); + } +#ifdef EXTRA_NOISY_LOGGING + if (dy < 10) { + SkUnichar ch = getUniChar(rec); + DBG_NAV_LOGD("FC dx/y=%d,%d mDx/y=%d,%d test=%d,%d,%d,%d" + " best=%d,%d,%d,%d bestIn=%s tween=%s testIn=%s focus=%s ch=%c", + dx, dy, mDx, mDy, + testBounds.fLeft, testBounds.fTop, testBounds.fRight, + testBounds.fBottom, mBestBounds.fLeft, mBestBounds.fTop, + mBestBounds.fRight, mBestBounds.fBottom, + mBestInColumn ? "true" : "false", inBetween ? "true" : "false", + testInColumn ? "true" : "false", inFocus ? "true" : "false", + ch < 0x7f ? ch : '?'); + } +#endif + if ((mBestInColumn || inBetween) && !testInColumn) { +#ifdef EXTRA_NOISY_LOGGING + if (dy < 10) DBG_NAV_LOG("FirstCheck reject column"); +#endif + return false; + } + bool ignoreColumn = mBestInColumn == testInColumn || !inFocus; + if (ignoreColumn && dy > 0 && (mDy < dy + || (mDy == dy && dx > 0 && mDx <= dx))) { +#ifdef EXTRA_NOISY_LOGGING + if (dy < 10) DBG_NAV_LOG("FirstCheck reject edge"); +#endif + return false; + } + // cx and cy are the distances from the tested center + // The center distance is used when the test point is over the text + int cx = std::abs(((testBounds.fLeft + testBounds.fRight) >> 1) + - mFocusX); + int cy = std::abs(((testBounds.fTop + testBounds.fBottom) >> 1) + - mFocusY); + if (ignoreColumn && dy == 0 && mDy == 0) { + if (mCy < cy) { +#ifdef EXTRA_NOISY_LOGGING + DBG_NAV_LOGD("FirstCheck reject cy=%d mCy=%d", cy, mCy); +#endif + return false; + } + if (mCy == cy) { + if (dx == 0 && mDx == 0) { + if (mCx < cx) { +#ifdef EXTRA_NOISY_LOGGING + DBG_NAV_LOGD("FirstCheck reject cx=%d mCx=%d", cx, mCx); +#endif + return false; + } + } else if (dx > 0 && mDx <= dx) { +#ifdef EXTRA_NOISY_LOGGING + DBG_NAV_LOGD("FirstCheck reject dx=%d mDx=%d", dx, mDx); +#endif + return false; + } + } + } +#ifdef EXTRA_NOISY_LOGGING + if (dy < 10) { + DBG_NAV_LOGD("FirstCheck cx/y=(%d,%d)", cx, cy); + } +#endif + mBestBase = base(); + mBestBounds = testBounds; + mBestInColumn = testInColumn; +#ifndef EXTRA_NOISY_LOGGING + if (dy < 10 && dx < 10) +#endif + { +#if DEBUG_NAV_UI + SkUnichar ch = getUniChar(rec); +#endif + DBG_NAV_LOGD("FirstCheck dx/y=(%d,%d) mFocus=(%d,%d)" + " mBestBounds={%d,%d,r=%d,b=%d} inColumn=%s ch=%c", + dx, dy, mFocusX, mFocusY, + mBestBounds.fLeft, mBestBounds.fTop, + mBestBounds.fRight, mBestBounds.fBottom, + mBestInColumn ? "true" : "false", ch < 0x7f ? ch : '?'); + } + mCx = cx; + mCy = cy; + mDx = dx; + mDy = dy; + if (mRecordGlyph) + recordGlyph(rec); + return false; + } + + void reset() + { + mBestBounds.setEmpty(); + mDx = mDy = mCx = mCy = INT_MAX; + } + + void setLines(const LineCheck* lineCheck) { mLineCheck = lineCheck; } + void setRecordGlyph() { mRecordGlyph = true; } + +protected: + const LineCheck* mLineCheck; + int mBestBase; + SkIRect mBestBounds; + int mCx; + int mCy; + int mDx; + int mDy; + int mFocusX; + int mFocusY; + bool mBestInColumn; + bool mRecordGlyph; +private: + typedef CommonCheck INHERITED; +}; + +class SelectText::EdgeCheck : public SelectText::FirstCheck { +public: + EdgeCheck(int x, int y, const SkIRect& area, CommonCheck& last, bool left) + : INHERITED(x, y, area) + , mLast(area) + , mLeft(left) + { + mLast.set(last); // CommonCheck::set() + setGlyph(last); + } + + bool adjacent() + { + return !mLast.isSpace(mLastGlyph); + } + + const SkIRect& bestBounds(int* base) + { + *base = mBestBase; + return mBestBounds; + } + + virtual bool onIRectGlyph(const SkIRect& rect, + const SkBounder::GlyphRec& rec) + { + int dx = mLeft ? mFocusX - rect.fRight : rect.fLeft - mFocusX; + int dy = ((top() + bottom()) >> 1) - mFocusY; + dx = abs(dx); + dy = abs(dy); + if (mLeft ? mFocusX <= rect.fLeft : mFocusX >= rect.fRight) { + if (dx <= 10 && dy <= 10) { + DBG_NAV_LOGD("EdgeCheck fLeft=%d fRight=%d mFocusX=%d dx=%d dy=%d", + rect.fLeft, rect.fRight, mFocusX, dx, dy); + } + return false; + } + if (mDy > dy || (mDy == dy && mDx > dx)) { + if (rec.fLSB == mLastGlyph.fLSB && rec.fRSB == mLastGlyph.fRSB) { + DBG_NAV_LOGD("dup rec.fLSB.fX=%g rec.fRSB.fX=%g", + SkFixedToScalar(rec.fLSB.fX), SkFixedToScalar(rec.fRSB.fX)); + return false; + } + recordGlyph(rec); + mDx = dx; + mDy = dy; + mBestBase = base(); + mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); + if (dx <= 10 && dy <= 10) { + DBG_NAV_LOGD("EdgeCheck mBestBounds={%d,%d,r=%d,b=%d} dx/y=(%d, %d)", + mBestBounds.fLeft, mBestBounds.fTop, + mBestBounds.fRight, mBestBounds.fBottom, dx, dy); + } + } + return false; + } + + void shiftStart(SkIRect bounds) + { + DBG_NAV_LOGD("EdgeCheck mFocusX=%d mLeft=%s bounds.fLeft=%d bounds.fRight=%d", + mFocusX, mLeft ? "true" : "false", bounds.fLeft, bounds.fRight); + reset(); + mFocusX = mLeft ? bounds.fLeft : bounds.fRight; + mLast.set(*this); // CommonCheck::set() + } + +protected: + CommonCheck mLast; + bool mLeft; +private: + typedef SelectText::FirstCheck INHERITED; +}; + +class FindFirst : public CommonCheck { +public: + FindFirst(const SkIRect& area) + : INHERITED(area) + { + mBestBounds.set(area.width(), area.height(), area.width(), area.height()); + } + + const SkIRect& bestBounds(int* base) + { + *base = mBestBase; + return mBestBounds; + } + + virtual bool onIRect(const SkIRect& rect) + { + if (mBestBounds.isEmpty()) { + mBestBase = base(); + mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); + } + return false; + } + +protected: + int mBestBase; + SkIRect mBestBounds; +private: + typedef CommonCheck INHERITED; +}; + +class FindLast : public FindFirst { +public: + FindLast(const SkIRect& area) + : INHERITED(area) + { + mBestBounds.setEmpty(); + } + + virtual bool onIRect(const SkIRect& rect) + { + mBestBase = base(); + mBestBounds.set(rect.fLeft, top(), rect.fRight, bottom()); + return false; + } + +private: + typedef FindFirst INHERITED; +}; + +static bool baseLinesAgree(const SkIRect& rectA, int baseA, + const SkIRect& rectB, int baseB) +{ + return (rectA.fTop < baseB && rectA.fBottom >= baseB) + || (rectB.fTop < baseA && rectB.fBottom >= baseA); +} + +class BuilderCheck : public CommonCheck { +protected: + enum IntersectionType { + NO_INTERSECTION, // debugging printf expects this to equal zero + LAST_INTERSECTION, // debugging printf expects this to equal one + WAIT_FOR_INTERSECTION + }; + + BuilderCheck(const SkIRect& start, int startBase, const SkIRect& end, + int endBase, const SkIRect& area) + : INHERITED(area) + , mCapture(false) + , mEnd(end) + , mEndBase(endBase) + , mStart(start) + , mStartBase(startBase) + { + mEnd.offset(-area.fLeft, -area.fTop); + mEndBase -= area.fTop; + mEndExtra.setEmpty(); + mLast.setEmpty(); + mLastBase = INT_MAX; + mSelectRect.setEmpty(); + mStart.offset(-area.fLeft, -area.fTop); + mStartBase -= area.fTop; + mStartExtra.setEmpty(); + DBG_NAV_LOGD(" mStart=(%d,%d,r=%d,b=%d) mStartBase=%d" + " mEnd=(%d,%d,r=%d,b=%d) mEndBase=%d", + mStart.fLeft, mStart.fTop, mStart.fRight, mStart.fBottom, mStartBase, + mEnd.fLeft, mEnd.fTop, mEnd.fRight, mEnd.fBottom, mEndBase); + } + + int checkFlipRect(const SkIRect& full, int fullBase) { + mCollectFull = false; + // is the text to collect between the selection top and bottom? + if (fullBase < mStart.fTop || fullBase > mEnd.fBottom) { + if (VERBOSE_LOGGING && !mLast.isEmpty()) DBG_NAV_LOGD("%s 1" + " full=(%d,%d,r=%d,b=%d) fullBase=%d" + " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d", + mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", + full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase); + return mLastIntersects; + } + // is the text to the left of the selection start? + if (baseLinesAgree(mStart, mStartBase, full, fullBase) + && full.fLeft < mStart.fLeft) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 2" + " full=(%d,%d,r=%d,b=%d) fullBase=%d" + " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" + " mStart=(%d,%d,r=%d,b=%d) mStartBase=%d", + mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", + full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, + mStart.fLeft, mStart.fTop, mStart.fRight, mStart.fBottom, mStartBase); + mStartExtra.join(full); + return mLastIntersects; + } + // is the text to the right of the selection end? + if (baseLinesAgree(mEnd, mEndBase, full, fullBase) + && full.fRight > mEnd.fRight) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 3" + " full=(%d,%d,r=%d,b=%d) fullBase=%d" + " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" + " mEnd=(%d,%d,r=%d,b=%d) mEndBase=%d", + mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", + full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, + mEnd.fLeft, mEnd.fTop, mEnd.fRight, mEnd.fBottom, mEndBase); + mEndExtra.join(full); + return mLastIntersects; + } + int spaceGap = SkFixedRound(minSpaceWidth(mPaint) * 3); + // should text to the left of the start be added to the selection bounds? + if (!mStartExtra.isEmpty()) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)" + " mStartExtra=(%d,%d,r=%d,b=%d)", + mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, + mStartExtra.fLeft, mStartExtra.fTop, mStartExtra.fRight, mStartExtra.fBottom); + if (mStartExtra.fRight + spaceGap >= mStart.fLeft) + mSelectRect.join(mStartExtra); + mStartExtra.setEmpty(); + } + // should text to the right of the end be added to the selection bounds? + if (!mEndExtra.isEmpty()) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)" + " mEndExtra=(%d,%d,r=%d,b=%d)", + mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, + mEndExtra.fLeft, mEndExtra.fTop, mEndExtra.fRight, mEndExtra.fBottom); + if (mEndExtra.fLeft - spaceGap <= mEnd.fRight) + mSelectRect.join(mEndExtra); + mEndExtra.setEmpty(); + } + bool sameBaseLine = baseLinesAgree(mLast, mLastBase, full, fullBase); + bool adjacent = (full.fLeft - mLast.fRight) < spaceGap; + // is this the first, or are there more characters on the same line? + if (mLast.isEmpty() || (sameBaseLine && adjacent)) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("WAIT_FOR_INTERSECTION" + " full=(%d,%d,r=%d,b=%d) fullBase=%d" + " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" + " mSelectRect=(%d,%d,r=%d,b=%d)", + full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, + mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom); + mLast.join(full); + mLastIntersects = SkIRect::Intersects(mLast, mSelectRect); + return WAIT_FOR_INTERSECTION; + } + if (VERBOSE_LOGGING) DBG_NAV_LOGD("%s 4" + " mLast=(%d,%d,r=%d,b=%d) mLastBase=%d" + " full=(%d,%d,r=%d,b=%d) fullBase=%d" + " mSelectRect=(%d,%d,r=%d,b=%d)" + " mStartExtra=(%d,%d,r=%d,b=%d)" + " mEndExtra=(%d,%d,r=%d,b=%d)", + mLastIntersects ? "LAST_INTERSECTION" : "NO_INTERSECTION", + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom, mLastBase, + full.fLeft, full.fTop, full.fRight, full.fBottom, fullBase, + mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom, + mStartExtra.fLeft, mStartExtra.fTop, mStartExtra.fRight, mStartExtra.fBottom, + mEndExtra.fLeft, mEndExtra.fTop, mEndExtra.fRight, mEndExtra.fBottom); + // after the caller determines what to do with the last collection, + // start the collection over with full and fullBase. + mCollectFull = true; + return mLastIntersects; + } + + bool resetLast(const SkIRect& full, int fullBase) + { + if (mCollectFull) { + mLast = full; + mLastBase = fullBase; + mLastIntersects = SkIRect::Intersects(mLast, mSelectRect); + } else { + mLast.setEmpty(); + mLastBase = INT_MAX; + mLastIntersects = false; + } + return mCollectFull; + } + + void setFlippedState() + { + mSelectRect = mStart; + mSelectRect.join(mEnd); + DBG_NAV_LOGD("mSelectRect=(%d,%d,r=%d,b=%d)", + mSelectRect.fLeft, mSelectRect.fTop, mSelectRect.fRight, mSelectRect.fBottom); + mLast.setEmpty(); + mLastBase = INT_MAX; + mLastIntersects = NO_INTERSECTION; + } + + bool mCapture; + bool mCollectFull; + SkIRect mEnd; + int mEndBase; + SkIRect mEndExtra; + bool mFlipped; + SkIRect mLast; + int mLastBase; + int mLastIntersects; + SkIRect mSelectRect; + SkIRect mStart; + SkIRect mStartExtra; + int mStartBase; +private: + typedef CommonCheck INHERITED; + +}; + +class MultilineBuilder : public BuilderCheck { +public: + MultilineBuilder(const SkIRect& start, int startBase, const SkIRect& end, + int endBase, const SkIRect& area, SkRegion* region) + : INHERITED(start, startBase, end, endBase, area) + , mSelectRegion(region) + { + mFlipped = false; + } + + void addLastToRegion() { + if (VERBOSE_LOGGING) DBG_NAV_LOGD(" mLast=(%d,%d,r=%d,b=%d)", + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom); + mSelectRegion->op(mLast, SkRegion::kUnion_Op); + } + + void finish() { + if (!mFlipped || !mLastIntersects) + return; + addLastToRegion(); + } + + // return true if capture end was not found after capture begin + bool flipped() { + DBG_NAV_LOGD("flipped=%s", mCapture ? "true" : "false"); + if (!mCapture) + return false; + mFlipped = true; + setFlippedState(); + mSelectRegion->setEmpty(); + return true; + } + + virtual bool onIRect(const SkIRect& rect) { + SkIRect full; + full.set(rect.fLeft, top(), rect.fRight, bottom()); + int fullBase = base(); + if (mFlipped) { + int intersectType = checkFlipRect(full, fullBase); + if (intersectType == LAST_INTERSECTION) + addLastToRegion(); + if (intersectType != WAIT_FOR_INTERSECTION) + resetLast(full, fullBase); + return false; + } + if (full == mStart) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("full == mStart full=(%d,%d,r=%d,b=%d)", + full.fLeft, full.fTop, full.fRight, full.fBottom); + mCapture = true; + } + if (mCapture) { + bool sameLines = baseLinesAgree(mLast, mLastBase, full, fullBase); + if (sameLines) + mLast.join(full); + if (!sameLines || full == mEnd) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("finish mLast=(%d,%d,r=%d,b=%d)", + mLast.fLeft, mLast.fTop, mLast.fRight, mLast.fBottom); + addLastToRegion(); + mLast = full; + mLastBase = fullBase; + } + } + if (full == mEnd) { + if (VERBOSE_LOGGING) DBG_NAV_LOGD("full == mEnd full=(%d,%d,r=%d,b=%d)", + full.fLeft, full.fTop, full.fRight, full.fBottom); + mCapture = false; + if (full == mStart) + addLastToRegion(); + } + return false; + } + +protected: + SkRegion* mSelectRegion; +private: + typedef BuilderCheck INHERITED; +}; + +static inline bool compareBounds(const SkIRect* first, const SkIRect* second) +{ + return first->fTop < second->fTop; +} + +class TextExtractor : public BuilderCheck { +public: + TextExtractor(const SkIRect& start, int startBase, const SkIRect& end, + int endBase, const SkIRect& area, bool flipped) + : INHERITED(start, startBase, end, endBase, area) + , mSelectStartIndex(-1) + , mSkipFirstSpace(true) // don't start with a space + { + mFlipped = flipped; + if (flipped) + setFlippedState(); + } + + void addCharacter(const SkBounder::GlyphRec& rec) + { + if (mSelectStartIndex < 0) + mSelectStartIndex = mSelectText.count(); + if (!mSkipFirstSpace) { + if (addNewLine(rec)) { + DBG_NAV_LOG("write new line"); + *mSelectText.append() = '\n'; + *mSelectText.append() = '\n'; + } else if (addSpace(rec)) { + DBG_NAV_LOG("write space"); + *mSelectText.append() = ' '; + } + } else + mSkipFirstSpace = false; + recordGlyph(rec); + finishGlyph(); + if (VERBOSE_LOGGING) DBG_NAV_LOGD("glyphID=%d uni=%d '%c'", rec.fGlyphID, + mLastUni, mLastUni && mLastUni < 0x7f ? mLastUni : '?'); + if (mLastUni) { + uint16_t chars[2]; + size_t count = SkUTF16_FromUnichar(mLastUni, chars); + *mSelectText.append() = chars[0]; + if (count == 2) + *mSelectText.append() = chars[1]; + } + } + + void addLast() + { + *mSelectBounds.append() = mLast; + *mSelectStart.append() = mSelectStartIndex; + *mSelectEnd.append() = mSelectText.count(); + } + + /* Text characters are collected before it's been determined that the + characters are part of the selection. The bounds describe valid parts + of the selection, but the bounds are out of order. + + This sorts the characters by sorting the bounds, then copying the + characters that were captured. + */ + void finish() + { + if (mLastIntersects) + addLast(); + Vector<SkIRect*> sortedBounds; + SkTDArray<uint16_t> temp; + int index; + DBG_NAV_LOGD("mSelectBounds.count=%d text=%d", mSelectBounds.count(), + mSelectText.count()); + for (index = 0; index < mSelectBounds.count(); index++) + sortedBounds.append(&mSelectBounds[index]); + std::sort(sortedBounds.begin(), sortedBounds.end(), compareBounds); + int lastEnd = -1; + for (index = 0; index < mSelectBounds.count(); index++) { + int order = sortedBounds[index] - &mSelectBounds[0]; + int start = mSelectStart[order]; + int end = mSelectEnd[order]; + DBG_NAV_LOGD("order=%d start=%d end=%d top=%d", order, start, end, + mSelectBounds[order].fTop); + int count = temp.count(); + if (count > 0 && temp[count - 1] != '\n' && start != lastEnd) { + // always separate paragraphs when original text is out of order + DBG_NAV_LOG("write new line"); + *temp.append() = '\n'; + *temp.append() = '\n'; + } + temp.append(end - start, &mSelectText[start]); + lastEnd = end; + } + mSelectText.swap(temp); + } + + virtual bool onIRectGlyph(const SkIRect& rect, + const SkBounder::GlyphRec& rec) + { + SkIRect full; + full.set(rect.fLeft, top(), rect.fRight, bottom()); + int fullBase = base(); + if (mFlipped) { + int intersectType = checkFlipRect(full, fullBase); + if (WAIT_FOR_INTERSECTION == intersectType) + addCharacter(rec); // may not be copied + else { + if (LAST_INTERSECTION == intersectType) + addLast(); + else + mSkipFirstSpace = true; + mSelectStartIndex = -1; + if (resetLast(full, fullBase)) + addCharacter(rec); // may not be copied + } + return false; + } + if (full == mStart) + mCapture = true; + if (mCapture) + addCharacter(rec); + else + mSkipFirstSpace = true; + if (full == mEnd) + mCapture = false; + return false; + } + + WTF::String text() { + if (mFlipped) + finish(); + // the text has been copied in visual order. Reverse as needed if + // result contains right-to-left characters. + const uint16_t* start = mSelectText.begin(); + const uint16_t* end = mSelectText.end(); + while (start < end) { + SkUnichar ch = SkUTF16_NextUnichar(&start); + WTF::Unicode::Direction charDirection = WTF::Unicode::direction(ch); + if (WTF::Unicode::RightToLeftArabic == charDirection + || WTF::Unicode::RightToLeft == charDirection) { + WebCore::ReverseBidi(mSelectText.begin(), mSelectText.count()); + break; + } + } + return WTF::String(mSelectText.begin(), mSelectText.count()); + } + +protected: + SkIRect mEmpty; + SkTDArray<SkIRect> mSelectBounds; + SkTDArray<int> mSelectEnd; + SkTDArray<int> mSelectStart; + int mSelectStartIndex; + SkTDArray<uint16_t> mSelectText; + bool mSkipFirstSpace; +private: + typedef BuilderCheck INHERITED; +}; + +class TextCanvas : public ParseCanvas { +public: + + TextCanvas(CommonCheck* bounder) + : mBounder(*bounder) { + setBounder(bounder); + SkBitmap bitmap; + const SkIRect& area = bounder->getArea(); + bitmap.setConfig(SkBitmap::kARGB_8888_Config, area.width(), + area.height()); + setBitmapDevice(bitmap); + translate(SkIntToScalar(-area.fLeft), SkIntToScalar(-area.fTop)); +#ifdef DEBUG_NAV_UI + const SkIRect& clip = getTotalClip().getBounds(); + const SkMatrix& matrix = getTotalMatrix(); + DBG_NAV_LOGD("bitmap=(%d,%d) clip=(%d,%d,%d,%d) matrix=(%g,%g)", + bitmap.width(), bitmap.height(), clip.fLeft, clip.fTop, + clip.fRight, clip.fBottom, matrix.getTranslateX(), matrix.getTranslateY()); +#endif + } + + virtual void drawPaint(const SkPaint& paint) { + } + + virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[], + const SkPaint& paint) { + } + + virtual void drawRect(const SkRect& rect, const SkPaint& paint) { + } + + virtual void drawPath(const SkPath& path, const SkPaint& paint) { + } + + virtual void commonDrawBitmap(const SkBitmap& bitmap, const SkIRect* rect, + const SkMatrix& matrix, const SkPaint& paint) { + } + + virtual void drawSprite(const SkBitmap& bitmap, int left, int top, + const SkPaint* paint = NULL) { + } + + virtual void drawText(const void* text, size_t byteLength, SkScalar x, + SkScalar y, const SkPaint& paint) { + mBounder.setUp(paint, getTotalMatrix(), y, text); + INHERITED::drawText(text, byteLength, x, y, paint); + } + + virtual void drawPosTextH(const void* text, size_t byteLength, + const SkScalar xpos[], SkScalar constY, + const SkPaint& paint) { + mBounder.setUp(paint, getTotalMatrix(), constY, text); + INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint); + } + + virtual void drawVertices(VertexMode vmode, int vertexCount, + const SkPoint vertices[], const SkPoint texs[], + const SkColor colors[], SkXfermode* xmode, + const uint16_t indices[], int indexCount, + const SkPaint& paint) { + } + + CommonCheck& mBounder; +private: + typedef ParseCanvas INHERITED; +}; + +static bool buildSelection(const SkPicture& picture, const SkIRect& area, + const SkIRect& selStart, int startBase, + const SkIRect& selEnd, int endBase, SkRegion* region) +{ + DBG_NAV_LOGD("area=(%d, %d, %d, %d) selStart=(%d, %d, %d, %d)" + " selEnd=(%d, %d, %d, %d)", + area.fLeft, area.fTop, area.fRight, area.fBottom, + selStart.fLeft, selStart.fTop, selStart.fRight, selStart.fBottom, + selEnd.fLeft, selEnd.fTop, selEnd.fRight, selEnd.fBottom); + MultilineBuilder builder(selStart, startBase, selEnd, endBase, area, region); + TextCanvas checker(&builder); + checker.drawPicture(const_cast<SkPicture&>(picture)); + bool flipped = builder.flipped(); + if (flipped) { + TextCanvas checker(&builder); + checker.drawPicture(const_cast<SkPicture&>(picture)); + } + builder.finish(); + region->translate(area.fLeft, area.fTop); + return flipped; +} + +static SkIRect findFirst(const SkPicture& picture, int* base) +{ + SkIRect area; + area.set(0, 0, picture.width(), picture.height()); + FindFirst finder(area); + TextCanvas checker(&finder); + checker.drawPicture(const_cast<SkPicture&>(picture)); + return finder.bestBounds(base); +} + +static SkIRect findLast(const SkPicture& picture, int* base) +{ + SkIRect area; + area.set(0, 0, picture.width(), picture.height()); + FindLast finder(area); + TextCanvas checker(&finder); + checker.drawPicture(const_cast<SkPicture&>(picture)); + return finder.bestBounds(base); +} + +static WTF::String text(const SkPicture& picture, const SkIRect& area, + const SkIRect& start, int startBase, const SkIRect& end, + int endBase, bool flipped) +{ + TextExtractor extractor(start, startBase, end, endBase, area, flipped); + TextCanvas checker(&extractor); + checker.drawPicture(const_cast<SkPicture&>(picture)); + return extractor.text(); +} + +#define CONTROL_NOTCH 16 +#define CONTROL_HEIGHT 35 +#define CONTROL_WIDTH 21 +#define STROKE_WIDTH 1.0f +#define STROKE_OUTSET 3.5f +#define STROKE_I_OUTSET 4 // (int) ceil(STROKE_OUTSET) +#define STROKE_COLOR 0x66000000 +#define OUTER_COLOR 0x33000000 +#define INNER_COLOR 0xe6aae300 + +#define SLOP 35 + +SelectText::SelectText() +{ + m_picture = 0; + reset(); + SkPaint paint; + SkRect oval; + + SkPath startOuterPath; + oval.set(-CONTROL_WIDTH - STROKE_OUTSET, CONTROL_NOTCH - STROKE_OUTSET, + -CONTROL_WIDTH + STROKE_OUTSET, CONTROL_NOTCH + STROKE_OUTSET); + startOuterPath.arcTo(oval, 180, 45, true); + oval.set(-STROKE_OUTSET, -STROKE_OUTSET, STROKE_OUTSET, STROKE_OUTSET); + startOuterPath.arcTo(oval, 180 + 45, 135, false); + oval.set(-STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); + startOuterPath.arcTo(oval, 0, 90, false); + oval.set(-CONTROL_WIDTH - STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, + -CONTROL_WIDTH + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); + startOuterPath.arcTo(oval, 90, 90, false); + startOuterPath.close(); + SkPath startInnerPath; + startInnerPath.moveTo(-CONTROL_WIDTH, CONTROL_NOTCH); + startInnerPath.lineTo(-CONTROL_WIDTH, CONTROL_HEIGHT); + startInnerPath.lineTo(0, CONTROL_HEIGHT); + startInnerPath.lineTo(0, 0); + startInnerPath.close(); + startOuterPath.addPath(startInnerPath, 0, 0); + + SkCanvas* canvas = m_startControl.beginRecording( + CONTROL_WIDTH + STROKE_OUTSET * 2, + CONTROL_HEIGHT + STROKE_OUTSET * 2); + paint.setAntiAlias(true); + paint.setColor(INNER_COLOR); + paint.setStyle(SkPaint::kFill_Style); + canvas->drawPath(startInnerPath, paint); + paint.setColor(OUTER_COLOR); + canvas->drawPath(startOuterPath, paint); + paint.setStyle(SkPaint::kStroke_Style); + paint.setColor(STROKE_COLOR); + paint.setStrokeWidth(STROKE_WIDTH); + canvas->drawPath(startInnerPath, paint); + m_startControl.endRecording(); + + SkPath endOuterPath; + oval.set(-STROKE_OUTSET, -STROKE_OUTSET, STROKE_OUTSET, STROKE_OUTSET); + endOuterPath.arcTo(oval, 180, 135, true); + oval.set(CONTROL_WIDTH - STROKE_OUTSET, CONTROL_NOTCH - STROKE_OUTSET, + CONTROL_WIDTH + STROKE_OUTSET, CONTROL_NOTCH + STROKE_OUTSET); + endOuterPath.arcTo(oval, 360 - 45, 45, false); + oval.set(CONTROL_WIDTH - STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, + CONTROL_WIDTH + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); + endOuterPath.arcTo(oval, 0, 90, false); + oval.set(-STROKE_OUTSET, CONTROL_HEIGHT - STROKE_OUTSET, + STROKE_OUTSET, CONTROL_HEIGHT + STROKE_OUTSET); + endOuterPath.arcTo(oval, 90, 90, false); + startOuterPath.close(); + SkPath endInnerPath; + endInnerPath.moveTo(0, 0); + endInnerPath.lineTo(0, CONTROL_HEIGHT); + endInnerPath.lineTo(CONTROL_WIDTH, CONTROL_HEIGHT); + endInnerPath.lineTo(CONTROL_WIDTH, CONTROL_NOTCH); + endInnerPath.close(); + endOuterPath.addPath(endInnerPath, 0, 0); + + canvas = m_endControl.beginRecording(CONTROL_WIDTH + STROKE_OUTSET * 2, + CONTROL_HEIGHT + STROKE_OUTSET * 2); + paint.setColor(INNER_COLOR); + paint.setStyle(SkPaint::kFill_Style); + canvas->drawPath(endInnerPath, paint); + paint.setColor(OUTER_COLOR); + canvas->drawPath(endOuterPath, paint); + paint.setStyle(SkPaint::kStroke_Style); + paint.setColor(STROKE_COLOR); + paint.setStrokeWidth(STROKE_WIDTH); + canvas->drawPath(endInnerPath, paint); + m_endControl.endRecording(); +} + +SelectText::~SelectText() +{ + SkSafeUnref(m_picture); +} + +void SelectText::draw(SkCanvas* canvas, LayerAndroid* layer, IntRect* inval) +{ + if (m_layerId != layer->uniqueId()) + return; + // reset m_picture to match m_layerId + SkSafeUnref(m_picture); + m_picture = layer->picture(); + SkSafeRef(m_picture); + DBG_NAV_LOGD("m_extendSelection=%d m_drawPointer=%d layer [%d]", + m_extendSelection, m_drawPointer, layer->uniqueId()); + if (m_extendSelection) + drawSelectionRegion(canvas, inval); + if (m_drawPointer) + drawSelectionPointer(canvas, inval); +} + +static void addInval(IntRect* inval, const SkCanvas* canvas, + const SkRect& bounds) { + const SkMatrix& matrix = canvas->getTotalMatrix(); + SkRect transformed; + matrix.mapRect(&transformed, bounds); + SkIRect iTrans; + transformed.round(&iTrans); + inval->unite(iTrans); +} + +void SelectText::drawSelectionPointer(SkCanvas* canvas, IntRect* inval) +{ + SkPath path; + if (m_extendSelection) + getSelectionCaret(&path); + else + getSelectionArrow(&path); + SkPixelXorXfermode xorMode(SK_ColorWHITE); + SkPaint paint; + paint.setAntiAlias(true); + paint.setStyle(SkPaint::kStroke_Style); + paint.setColor(SK_ColorBLACK); + if (m_extendSelection) + paint.setXfermode(&xorMode); + else + paint.setStrokeWidth(SK_Scalar1 * 2); + int sc = canvas->save(); + canvas->scale(m_inverseScale, m_inverseScale); + canvas->translate(m_selectX, m_selectY); + canvas->drawPath(path, paint); + if (!m_extendSelection) { + paint.setStyle(SkPaint::kFill_Style); + paint.setColor(SK_ColorWHITE); + canvas->drawPath(path, paint); + } + SkRect bounds = path.getBounds(); + bounds.inset(-SK_Scalar1 * 2, -SK_Scalar1 * 2); // stroke width + addInval(inval, canvas, bounds); + canvas->restoreToCount(sc); +} + +static void addStart(SkRegion* diff, const SkIRect& rect) +{ + SkIRect bounds; + bounds.set(rect.fLeft - CONTROL_WIDTH - STROKE_I_OUTSET, + rect.fBottom - STROKE_I_OUTSET, rect.fLeft + STROKE_I_OUTSET, + rect.fBottom + CONTROL_HEIGHT + STROKE_I_OUTSET); + diff->op(bounds, SkRegion::kUnion_Op); +} + +static void addEnd(SkRegion* diff, const SkIRect& rect) +{ + SkIRect bounds; + bounds.set(rect.fRight - STROKE_I_OUTSET, rect.fBottom - STROKE_I_OUTSET, + rect.fRight + CONTROL_WIDTH + STROKE_I_OUTSET, + rect.fBottom + CONTROL_HEIGHT + STROKE_I_OUTSET); + diff->op(bounds, SkRegion::kUnion_Op); +} + +void SelectText::drawSelectionRegion(SkCanvas* canvas, IntRect* inval) +{ + if (!m_picture) + return; + SkIRect ivisBounds = m_visibleRect; + ivisBounds.join(m_selStart); + ivisBounds.join(m_selEnd); + DBG_NAV_LOGD("m_selStart=(%d,%d,r=%d,b=%d) m_selEnd=(%d,%d,r=%d,b=%d)" + " ivisBounds=(%d,%d,r=%d,b=%d)", + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, + m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom, + ivisBounds.fLeft, ivisBounds.fTop, ivisBounds.fRight, ivisBounds.fBottom); + if (m_lastSelRegion != m_selRegion) + m_lastSelRegion.set(m_selRegion); + SkRegion diff(m_lastSelRegion); + m_selRegion.setEmpty(); + m_flipped = buildSelection(*m_picture, ivisBounds, m_selStart, m_startBase, + m_selEnd, m_endBase, &m_selRegion); + SkPath path; + m_selRegion.getBoundaryPath(&path); + path.setFillType(SkPath::kEvenOdd_FillType); + + SkPaint paint; + paint.setAntiAlias(true); + paint.setColor(SkColorSetARGB(0x80, 0x83, 0xCC, 0x39)); + canvas->drawPath(path, paint); + // experiment to draw touchable controls that resize the selection + canvas->save(); + canvas->translate(m_selStart.fLeft, m_selStart.fBottom); + canvas->drawPicture(m_startControl); + canvas->restore(); + canvas->save(); + canvas->translate(m_selEnd.fRight, m_selEnd.fBottom); + canvas->drawPicture(m_endControl); + canvas->restore(); + SkIRect a = diff.getBounds(); + SkIRect b = m_selRegion.getBounds(); + diff.op(m_selRegion, SkRegion::kXOR_Op); + SkIRect c = diff.getBounds(); + DBG_NAV_LOGD("old=(%d,%d,r=%d,b=%d) new=(%d,%d,r=%d,b=%d) diff=(%d,%d,r=%d,b=%d)", + a.fLeft, a.fTop, a.fRight, a.fBottom, b.fLeft, b.fTop, b.fRight, b.fBottom, + c.fLeft, c.fTop, c.fRight, c.fBottom); + DBG_NAV_LOGD("lastStart=(%d,%d,r=%d,b=%d) m_lastEnd=(%d,%d,r=%d,b=%d)", + m_lastStart.fLeft, m_lastStart.fTop, m_lastStart.fRight, m_lastStart.fBottom, + m_lastEnd.fLeft, m_lastEnd.fTop, m_lastEnd.fRight, m_lastEnd.fBottom); + if (!m_lastDrawnStart.isEmpty()) + addStart(&diff, m_lastDrawnStart); + if (m_lastStart != m_selStart) { + m_lastDrawnStart = m_lastStart; + m_lastStart = m_selStart; + } + addStart(&diff, m_selStart); + if (!m_lastDrawnEnd.isEmpty()) + addEnd(&diff, m_lastDrawnEnd); + if (m_lastEnd != m_selEnd) { + m_lastDrawnEnd = m_lastEnd; + m_lastEnd = m_selEnd; + } + addEnd(&diff, m_selEnd); + SkIRect iBounds = diff.getBounds(); + DBG_NAV_LOGD("diff=(%d,%d,r=%d,b=%d)", + iBounds.fLeft, iBounds.fTop, iBounds.fRight, iBounds.fBottom); + SkRect bounds; + bounds.set(iBounds); + addInval(inval, canvas, bounds); +} + +void SelectText::extendSelection(const IntRect& vis, int x, int y) +{ + if (!m_picture) + return; + setVisibleRect(vis); + SkIRect clipRect = m_visibleRect; + int base; + DBG_NAV_LOGD("extend x/y=%d,%d m_startOffset=%d,%d", x, y, + m_startOffset.fX, m_startOffset.fY); + x -= m_startOffset.fX; + y -= m_startOffset.fY; + if (m_startSelection) { + if (!clipRect.contains(x, y) + || !clipRect.contains(m_original.fX, m_original.fY)) { + clipRect.set(m_original.fX, m_original.fY, x, y); + clipRect.sort(); + clipRect.inset(-m_visibleRect.width(), -m_visibleRect.height()); + } + FirstCheck center(m_original.fX, m_original.fY, clipRect); + m_selStart = m_selEnd = findClosest(center, *m_picture, &base); + if (m_selStart.isEmpty()) + return; + DBG_NAV_LOGD("selStart clip=(%d,%d,%d,%d) m_original=%d,%d" + " m_selStart=(%d,%d,%d,%d)", clipRect.fLeft, clipRect.fTop, + clipRect.fRight, clipRect.fBottom, m_original.fX, m_original.fY, + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom); + m_startBase = m_endBase = base; + m_startSelection = false; + m_extendSelection = true; + m_original.fX = m_original.fY = 0; + } + DBG_NAV_LOGD("extend x/y=%d,%d m_original=%d,%d", x, y, + m_original.fX, m_original.fY); + x -= m_original.fX; + y -= m_original.fY; + if (!clipRect.contains(x, y) || !clipRect.contains(m_selStart)) { + clipRect.set(m_selStart.fLeft, m_selStart.fTop, x, y); + clipRect.sort(); + clipRect.inset(-m_visibleRect.width(), -m_visibleRect.height()); + } + DBG_NAV_LOGD("extend clip=(%d,%d,%d,%d) x/y=%d,%d wordSel=%s outsideWord=%s", + clipRect.fLeft, clipRect.fTop, clipRect.fRight, clipRect.fBottom, x, y, + m_wordSelection ? "true" : "false", m_outsideWord ? "true" : "false"); + FirstCheck extension(x, y, clipRect); + SkIRect found = findClosest(extension, *m_picture, &base); + if (m_wordSelection) { + SkIRect wordBounds = m_wordBounds; + if (!m_outsideWord) + wordBounds.inset(-TOUCH_SLOP, -TOUCH_SLOP); + DBG_NAV_LOGD("x=%d y=%d wordBounds=(%d,%d,r=%d,b=%d)" + " found=(%d,%d,r=%d,b=%d)", x, y, wordBounds.fLeft, wordBounds.fTop, + wordBounds.fRight, wordBounds.fBottom, found.fLeft, found.fTop, + found.fRight, found.fBottom); + if (wordBounds.contains(x, y)) { + DBG_NAV_LOG("wordBounds.contains=true"); + m_outsideWord = false; + return; + } + m_outsideWord = true; + if (found.fBottom <= wordBounds.fTop) + m_hitTopLeft = true; + else if (found.fTop >= wordBounds.fBottom) + m_hitTopLeft = false; + else + m_hitTopLeft = (found.fLeft + found.fRight) + < (wordBounds.fLeft + wordBounds.fRight); + } + DBG_NAV_LOGD("x=%d y=%d m_startSelection=%s %s=(%d, %d, %d, %d)" + " m_extendSelection=%s", + x, y, m_startSelection ? "true" : "false", + m_hitTopLeft ? "m_selStart" : "m_selEnd", + found.fLeft, found.fTop, found.fRight, found.fBottom, + m_extendSelection ? "true" : "false"); + if (m_hitTopLeft) { + m_startBase = base; + m_selStart = found; + } else { + m_endBase = base; + m_selEnd = found; + } + swapAsNeeded(); +} + +SkIRect SelectText::findClosest(FirstCheck& check, const SkPicture& picture, + int* base) +{ + LineCheck lineCheck(check.focusX(), check.focusY(), check.getArea()); + TextCanvas lineChecker(&lineCheck); + lineChecker.drawPicture(const_cast<SkPicture&>(picture)); + lineCheck.finish(m_selRegion); + check.setLines(&lineCheck); + TextCanvas checker(&check); + checker.drawPicture(const_cast<SkPicture&>(picture)); + check.finishGlyph(); + return check.adjustedBounds(base); +} + +SkIRect SelectText::findEdge(const SkPicture& picture, const SkIRect& area, + int x, int y, bool left, int* base) +{ + SkIRect result; + result.setEmpty(); + FirstCheck center(x, y, area); + center.setRecordGlyph(); + int closestBase; + SkIRect closest = findClosest(center, picture, &closestBase); + SkIRect sloppy = closest; + sloppy.inset(-TOUCH_SLOP, -TOUCH_SLOP); + if (!sloppy.contains(x, y)) { + DBG_NAV_LOGD("sloppy=(%d, %d, %d, %d) area=(%d, %d, %d, %d) x/y=%d,%d", + sloppy.fLeft, sloppy.fTop, sloppy.fRight, sloppy.fBottom, + area.fLeft, area.fTop, area.fRight, area.fBottom, x, y); + return result; + } + EdgeCheck edge(x, y, area, center, left); + do { // detect left or right until there's a gap + DBG_NAV_LOGD("edge=%p picture=%p area=%d,%d,%d,%d", + &edge, &picture, area.fLeft, area.fTop, area.fRight, area.fBottom); + TextCanvas checker(&edge); + checker.drawPicture(const_cast<SkPicture&>(picture)); + edge.finishGlyph(); + if (!edge.adjacent()) { + if (result.isEmpty()) { + *base = closestBase; + DBG_NAV_LOGD("closest=%d,%d,%d,%d", closest.fLeft, + closest.fTop, closest.fRight, closest.fBottom); + return closest; + } + DBG_NAV_LOG("adjacent break"); + break; + } + int nextBase; + const SkIRect& next = edge.bestBounds(&nextBase); + if (next.isEmpty()) { + DBG_NAV_LOG("empty"); + break; + } + if (result == next) { + DBG_NAV_LOG("result == next"); + break; + } + *base = nextBase; + result = next; + edge.shiftStart(result); + } while (true); + if (!result.isEmpty()) { + *base += area.fTop; + result.offset(area.fLeft, area.fTop); + } + return result; +} + +SkIRect SelectText::findLeft(const SkPicture& picture, const SkIRect& area, + int x, int y, int* base) +{ + return findEdge(picture, area, x, y, true, base); +} + +SkIRect SelectText::findRight(const SkPicture& picture, const SkIRect& area, + int x, int y, int* base) +{ + return findEdge(picture, area, x, y, false, base); +} + +const String SelectText::getSelection() +{ + if (!m_picture) + return String(); + SkIRect clipRect; + clipRect.set(0, 0, m_picture->width(), m_picture->height()); + String result = text(*m_picture, clipRect, m_selStart, m_startBase, + m_selEnd, m_endBase, m_flipped); + DBG_NAV_LOGD("clip=(%d,%d,%d,%d)" + " m_selStart=(%d, %d, %d, %d) m_selEnd=(%d, %d, %d, %d)", + clipRect.fLeft, clipRect.fTop, clipRect.fRight, clipRect.fBottom, + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, + m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); + DBG_NAV_LOGD("text=%s", result.latin1().data()); // uses CString + return result; +} + +void SelectText::getSelectionArrow(SkPath* path) +{ + const int arrow[] = { + 0, 14, 3, 11, 5, 15, 9, 15, 7, 11, 11, 11 + }; + for (unsigned index = 0; index < sizeof(arrow)/sizeof(arrow[0]); index += 2) + path->lineTo(arrow[index], arrow[index + 1]); + path->close(); +} + +void SelectText::getSelectionCaret(SkPath* path) +{ + SkScalar height = m_selStart.fBottom - m_selStart.fTop; + SkScalar dist = height / 4; + path->moveTo(0, -height / 2); + path->rLineTo(0, height); + path->rLineTo(-dist, dist); + path->rMoveTo(0, -0.5f); + path->rLineTo(dist * 2, 0); + path->rMoveTo(0, 0.5f); + path->rLineTo(-dist, -dist); +} + +bool SelectText::hitCorner(int cx, int cy, int x, int y) const +{ + SkIRect test; + test.set(cx, cy, cx, cy); + test.inset(-SLOP, -SLOP); + return test.contains(x, y); +} + +bool SelectText::hitSelection(int x, int y) const +{ + x -= m_startOffset.fX; + y -= m_startOffset.fY; + int left = m_selStart.fLeft - CONTROL_WIDTH / 2; + int top = m_selStart.fBottom + CONTROL_HEIGHT / 2; + if (hitCorner(left, top, x, y)) + return true; + int right = m_selEnd.fRight + CONTROL_WIDTH / 2; + int bottom = m_selEnd.fBottom + CONTROL_HEIGHT / 2; + if (hitCorner(right, bottom, x, y)) + return true; + return m_selRegion.contains(x, y); +} + +void SelectText::moveSelection(const IntRect& vis, int x, int y) +{ + if (!m_picture) + return; + x -= m_startOffset.fX; + y -= m_startOffset.fY; + setVisibleRect(vis); + SkIRect clipRect = m_visibleRect; + clipRect.join(m_selStart); + clipRect.join(m_selEnd); + FirstCheck center(x, y, clipRect); + int base; + SkIRect found = findClosest(center, *m_picture, &base); + if (m_hitTopLeft || !m_extendSelection) { + m_startBase = base; + m_selStart = found; + } + if (!m_hitTopLeft || !m_extendSelection) { + m_endBase = base; + m_selEnd = found; + } + swapAsNeeded(); + DBG_NAV_LOGD("x=%d y=%d extendSelection=%s m_selStart=(%d, %d, %d, %d)" + " m_selEnd=(%d, %d, %d, %d)", x, y, m_extendSelection ? "true" : "false", + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, + m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); +} + +void SelectText::reset() +{ + DBG_NAV_LOG("m_extendSelection=false"); + m_selStart.setEmpty(); + m_lastStart.setEmpty(); + m_lastDrawnStart.setEmpty(); + m_selEnd.setEmpty(); + m_lastEnd.setEmpty(); + m_lastDrawnEnd.setEmpty(); + m_extendSelection = false; + m_startSelection = false; + SkSafeUnref(m_picture); + m_picture = 0; + m_layerId = 0; +} + +IntPoint SelectText::selectableText(const CachedRoot* root) +{ + int x = 0; + int y = 0; + SkPicture* picture = root->pictureAt(&x, &y, &m_layerId); + if (!picture) { + DBG_NAV_LOG("picture==0"); + return IntPoint(0, 0); + } + int width = picture->width(); + int height = picture->height(); + IntRect vis(0, 0, width, height); + FirstCheck center(width >> 1, height >> 1, vis); + int base; + const SkIRect& closest = findClosest(center, *picture, &base); + return IntPoint((closest.fLeft + closest.fRight) >> 1, + (closest.fTop + closest.fBottom) >> 1); +} + +void SelectText::selectAll() +{ + if (!m_picture) + return; + m_selStart = findFirst(*m_picture, &m_startBase); + m_selEnd = findLast(*m_picture, &m_endBase); + m_extendSelection = true; +} + +int SelectText::selectionX() const +{ + return (m_hitTopLeft ? m_selStart.fLeft : m_selEnd.fRight) + m_startOffset.fX; +} + +int SelectText::selectionY() const +{ + const SkIRect& rect = m_hitTopLeft ? m_selStart : m_selEnd; + return ((rect.fTop + rect.fBottom) >> 1) + m_startOffset.fY; +} + +void SelectText::setVisibleRect(const IntRect& vis) +{ + DBG_NAV_LOGD("vis=(%d,%d,w=%d,h=%d) offset=(%d,%d)", + vis.x(), vis.y(), vis.width(), vis.height(), m_startOffset.fX, + m_startOffset.fY); + m_visibleRect = vis; + m_visibleRect.offset(-m_startOffset.fX, -m_startOffset.fY); +} + +bool SelectText::startSelection(const CachedRoot* root, const IntRect& vis, + int x, int y) +{ + m_wordSelection = false; + m_startOffset.set(x, y); + DBG_NAV_LOGD("x/y=(%d,%d)", x, y); + SkSafeUnref(m_picture); + m_picture = root->pictureAt(&x, &y, &m_layerId); + DBG_NAV_LOGD("m_picture=%p m_layerId=%d x/y=(%d,%d)", m_picture, m_layerId, + x, y); + if (!m_picture) { + DBG_NAV_LOG("picture==0"); + return false; + } + m_picture->ref(); + m_startOffset.fX -= x; + m_startOffset.fY -= y; + m_original.fX = x; + m_original.fY = y; + setVisibleRect(vis); + if (m_selStart.isEmpty()) { + DBG_NAV_LOGD("empty start picture=(%d,%d) x=%d y=%d", + m_picture->width(), m_picture->height(), x, y); + m_startSelection = true; + return true; + } + int left = m_selStart.fLeft - CONTROL_WIDTH / 2; + int top = m_selStart.fBottom + CONTROL_HEIGHT / 2; + m_hitTopLeft = hitCorner(left, top, x, y); + int right = m_selEnd.fRight + CONTROL_WIDTH / 2; + int bottom = m_selEnd.fBottom + CONTROL_HEIGHT / 2; + bool hitBottomRight = hitCorner(right, bottom, x, y); + DBG_NAV_LOGD("picture=(%d,%d) left=%d top=%d right=%d bottom=%d x=%d y=%d", + m_picture->width(), m_picture->height(),left, top, right, bottom, x, y); + if (m_hitTopLeft && (!hitBottomRight || y - top < bottom - y)) { + DBG_NAV_LOG("hit top left"); + m_original.fX -= m_selStart.fLeft; + m_original.fY -= (m_selStart.fTop + m_selStart.fBottom) >> 1; + } else if (hitBottomRight) { + DBG_NAV_LOG("hit bottom right"); + m_original.fX -= m_selEnd.fRight; + m_original.fY -= (m_selEnd.fTop + m_selEnd.fBottom) >> 1; + } + return m_hitTopLeft || hitBottomRight; +} + +/* selects the word at (x, y) +* a word is normally delimited by spaces +* a string of digits (even with inside spaces) is a word (for phone numbers) +* FIXME: digit find isn't implemented yet +* returns true if a word was selected +*/ +bool SelectText::wordSelection(const CachedRoot* root, const IntRect& vis, + int x, int y) +{ + IntRect tapArea = IntRect(x - TOUCH_SLOP, y - TOUCH_SLOP, TOUCH_SLOP * 2, + TOUCH_SLOP * 2); + if (!startSelection(root, tapArea, x, y)) + return false; + extendSelection(tapArea, x, y); + if (m_selStart.isEmpty()) + return false; + setDrawPointer(false); + setVisibleRect(vis); + SkIRect ivisBounds = m_visibleRect; + ivisBounds.join(m_selStart); + ivisBounds.join(m_selEnd); + DBG_NAV_LOGD("m_selStart=(%d,%d,r=%d,b=%d) m_selEnd=(%d,%d,r=%d,b=%d)" + " ivisBounds=(%d,%d,r=%d,b=%d)", + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, + m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom, + ivisBounds.fLeft, ivisBounds.fTop, ivisBounds.fRight, ivisBounds.fBottom); + m_selRegion.setEmpty(); + buildSelection(*m_picture, ivisBounds, m_selStart, m_startBase, + m_selEnd, m_endBase, &m_selRegion); + x = m_selStart.fLeft; + y = (m_selStart.fTop + m_selStart.fBottom) >> 1; + SkIRect clipRect = m_visibleRect; + clipRect.fLeft -= m_visibleRect.width() >> 1; + clipRect.fLeft = std::max(clipRect.fLeft, 0); + int base; + SkIRect left = findLeft(*m_picture, clipRect, x, y, &base); + if (!left.isEmpty()) { + m_startBase = base; + m_selStart = left; + } + x = m_selEnd.fRight; + y = (m_selEnd.fTop + m_selEnd.fBottom) >> 1; + clipRect = m_visibleRect; + clipRect.fRight += m_visibleRect.width() >> 1; + SkIRect right = findRight(*m_picture, clipRect, x, y, &base); + if (!right.isEmpty()) { + m_endBase = base; + m_selEnd = right; + } + DBG_NAV_LOGD("m_selStart=(%d, %d, %d, %d) m_selEnd=(%d, %d, %d, %d)", + m_selStart.fLeft, m_selStart.fTop, m_selStart.fRight, m_selStart.fBottom, + m_selEnd.fLeft, m_selEnd.fTop, m_selEnd.fRight, m_selEnd.fBottom); + if (!left.isEmpty() || !right.isEmpty()) { + m_wordBounds = m_selStart; + m_wordBounds.join(m_selEnd); + m_extendSelection = m_wordSelection = true; + m_outsideWord = false; + return true; + } + return false; +} + +void SelectText::swapAsNeeded() +{ + if (m_selStart.fTop >= (m_selEnd.fTop + m_selEnd.fBottom) >> 1 + || (m_selEnd.fTop < (m_selStart.fTop + m_selStart.fBottom) >> 1 + && m_selStart.fRight > m_selEnd.fLeft)) + { + SkTSwap(m_startBase, m_endBase); + SkTSwap(m_selStart, m_selEnd); + m_hitTopLeft ^= true; + DBG_NAV_LOGD("m_hitTopLeft=%s", m_hitTopLeft ? "true" : "false"); + } +} + +} diff --git a/Source/WebKit/android/nav/SelectText.h b/Source/WebKit/android/nav/SelectText.h new file mode 100644 index 0000000..42239cf --- /dev/null +++ b/Source/WebKit/android/nav/SelectText.h @@ -0,0 +1,116 @@ +/* + * Copyright 2008, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef SELECT_TEXT_H +#define SELECT_TEXT_H + +#include "DrawExtra.h" +#include "IntPoint.h" +#include "IntRect.h" +#include "PlatformString.h" +#include "SkPath.h" +#include "SkPicture.h" +#include "SkRect.h" +#include "SkRegion.h" + +namespace android { + +class CachedRoot; + +class SelectText : public DrawExtra { +public: + SelectText(); + virtual ~SelectText(); + virtual void draw(SkCanvas* , LayerAndroid* , IntRect* ); + void extendSelection(const IntRect& vis, int x, int y); + const String getSelection(); + bool hitSelection(int x, int y) const; + void moveSelection(const IntRect& vis, int x, int y); + void reset(); + IntPoint selectableText(const CachedRoot* ); + void selectAll(); + int selectionX() const; + int selectionY() const; + void setDrawPointer(bool drawPointer) { m_drawPointer = drawPointer; } + void setExtendSelection(bool extend) { m_extendSelection = extend; } + bool startSelection(const CachedRoot* , const IntRect& vis, int x, int y); + bool wordSelection(const CachedRoot* , const IntRect& vis, int x, int y); +public: + float m_inverseScale; // inverse scale, x, y used for drawing select path + int m_selectX; + int m_selectY; +private: + class FirstCheck; + class EdgeCheck; + void drawSelectionPointer(SkCanvas* , IntRect* ); + void drawSelectionRegion(SkCanvas* , IntRect* ); + SkIRect findClosest(FirstCheck& , const SkPicture& , int* base); + SkIRect findEdge(const SkPicture& , const SkIRect& area, + int x, int y, bool left, int* base); + SkIRect findLeft(const SkPicture& picture, const SkIRect& area, + int x, int y, int* base); + SkIRect findRight(const SkPicture& picture, const SkIRect& area, + int x, int y, int* base); + static void getSelectionArrow(SkPath* ); + void getSelectionCaret(SkPath* ); + bool hitCorner(int cx, int cy, int x, int y) const; + void setVisibleRect(const IntRect& ); + void swapAsNeeded(); + SkIPoint m_original; // computed start of extend selection + SkIPoint m_startOffset; // difference from global to layer + SkIRect m_selStart; + SkIRect m_selEnd; + SkIRect m_lastStart; + SkIRect m_lastEnd; + SkIRect m_lastDrawnStart; + SkIRect m_lastDrawnEnd; + SkIRect m_wordBounds; + int m_startBase; + int m_endBase; + int m_layerId; + SkIRect m_visibleRect; // constrains picture computations to visible area + SkRegion m_lastSelRegion; + SkRegion m_selRegion; // computed from sel start, end + SkPicture m_startControl; + SkPicture m_endControl; + const SkPicture* m_picture; + bool m_drawPointer; + bool m_extendSelection; // false when trackball is moving pointer + bool m_flipped; + bool m_hitTopLeft; + bool m_startSelection; + bool m_wordSelection; + bool m_outsideWord; +}; + +} + +namespace WebCore { + +void ReverseBidi(UChar* chars, int len); + +} + +#endif diff --git a/Source/WebKit/android/nav/WebView.cpp b/Source/WebKit/android/nav/WebView.cpp new file mode 100644 index 0000000..ff5d73d --- /dev/null +++ b/Source/WebKit/android/nav/WebView.cpp @@ -0,0 +1,2673 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define LOG_TAG "webviewglue" + +#include "config.h" + +#include "AndroidAnimation.h" +#include "AndroidLog.h" +#include "BaseLayerAndroid.h" +#include "CachedFrame.h" +#include "CachedNode.h" +#include "CachedRoot.h" +#include "DrawExtra.h" +#include "FindCanvas.h" +#include "Frame.h" +#include "GraphicsJNI.h" +#include "HTMLInputElement.h" +#include "IntPoint.h" +#include "IntRect.h" +#include "LayerAndroid.h" +#include "Node.h" +#include "utils/Functor.h" +#include "private/hwui/DrawGlInfo.h" +#include "PlatformGraphicsContext.h" +#include "PlatformString.h" +#include "ScrollableLayerAndroid.h" +#include "SelectText.h" +#include "SkCanvas.h" +#include "SkDumpCanvas.h" +#include "SkPicture.h" +#include "SkRect.h" +#include "SkTime.h" +#ifdef ANDROID_INSTRUMENT +#include "TimeCounter.h" +#endif +#include "TilesManager.h" +#include "WebCoreJni.h" +#include "WebRequestContext.h" +#include "WebViewCore.h" +#include "android_graphics.h" + +#ifdef GET_NATIVE_VIEW +#undef GET_NATIVE_VIEW +#endif + +#define GET_NATIVE_VIEW(env, obj) ((WebView*)env->GetIntField(obj, gWebViewField)) + +#include <JNIUtility.h> +#include <JNIHelp.h> +#include <jni.h> +#include <android_runtime/android_util_AssetManager.h> +#include <ui/KeycodeLabels.h> +#include <utils/AssetManager.h> +#include <wtf/text/AtomicString.h> +#include <wtf/text/CString.h> + +namespace android { + +static jfieldID gWebViewField; + +//------------------------------------- + +static jmethodID GetJMethod(JNIEnv* env, jclass clazz, const char name[], const char signature[]) +{ + jmethodID m = env->GetMethodID(clazz, name, signature); + LOG_ASSERT(m, "Could not find method %s", name); + return m; +} + +//------------------------------------- +// This class provides JNI for making calls into native code from the UI side +// of the multi-threaded WebView. +class WebView +{ +public: +enum FrameCachePermission { + DontAllowNewer, + AllowNewer, + AllowNewest +}; + +enum DrawExtras { // keep this in sync with WebView.java + DrawExtrasNone = 0, + DrawExtrasFind = 1, + DrawExtrasSelection = 2, + DrawExtrasCursorRing = 3 +}; + +struct JavaGlue { + jweak m_obj; + jmethodID m_calcOurContentVisibleRectF; + jmethodID m_overrideLoading; + jmethodID m_scrollBy; + jmethodID m_sendMoveFocus; + jmethodID m_sendMoveMouse; + jmethodID m_sendMoveMouseIfLatest; + jmethodID m_sendMotionUp; + jmethodID m_domChangedFocus; + jmethodID m_getScaledMaxXScroll; + jmethodID m_getScaledMaxYScroll; + jmethodID m_getVisibleRect; + jmethodID m_rebuildWebTextView; + jmethodID m_viewInvalidate; + jmethodID m_viewInvalidateRect; + jmethodID m_postInvalidateDelayed; + jmethodID m_inFullScreenMode; + jfieldID m_rectLeft; + jfieldID m_rectTop; + jmethodID m_rectWidth; + jmethodID m_rectHeight; + jfieldID m_rectFLeft; + jfieldID m_rectFTop; + jmethodID m_rectFWidth; + jmethodID m_rectFHeight; + AutoJObject object(JNIEnv* env) { + return getRealObject(env, m_obj); + } +} m_javaGlue; + +WebView(JNIEnv* env, jobject javaWebView, int viewImpl, WTF::String drawableDir, AssetManager* am) : + m_ring((WebViewCore*) viewImpl) +{ + jclass clazz = env->FindClass("android/webkit/WebView"); + // m_javaGlue = new JavaGlue; + m_javaGlue.m_obj = env->NewWeakGlobalRef(javaWebView); + m_javaGlue.m_scrollBy = GetJMethod(env, clazz, "setContentScrollBy", "(IIZ)Z"); + m_javaGlue.m_calcOurContentVisibleRectF = GetJMethod(env, clazz, "calcOurContentVisibleRectF", "(Landroid/graphics/RectF;)V"); + m_javaGlue.m_overrideLoading = GetJMethod(env, clazz, "overrideLoading", "(Ljava/lang/String;)V"); + m_javaGlue.m_sendMoveFocus = GetJMethod(env, clazz, "sendMoveFocus", "(II)V"); + m_javaGlue.m_sendMoveMouse = GetJMethod(env, clazz, "sendMoveMouse", "(IIII)V"); + m_javaGlue.m_sendMoveMouseIfLatest = GetJMethod(env, clazz, "sendMoveMouseIfLatest", "(ZZ)V"); + m_javaGlue.m_sendMotionUp = GetJMethod(env, clazz, "sendMotionUp", "(IIIII)V"); + m_javaGlue.m_domChangedFocus = GetJMethod(env, clazz, "domChangedFocus", "()V"); + m_javaGlue.m_getScaledMaxXScroll = GetJMethod(env, clazz, "getScaledMaxXScroll", "()I"); + m_javaGlue.m_getScaledMaxYScroll = GetJMethod(env, clazz, "getScaledMaxYScroll", "()I"); + m_javaGlue.m_getVisibleRect = GetJMethod(env, clazz, "sendOurVisibleRect", "()Landroid/graphics/Rect;"); + m_javaGlue.m_rebuildWebTextView = GetJMethod(env, clazz, "rebuildWebTextView", "()V"); + m_javaGlue.m_viewInvalidate = GetJMethod(env, clazz, "viewInvalidate", "()V"); + m_javaGlue.m_viewInvalidateRect = GetJMethod(env, clazz, "viewInvalidate", "(IIII)V"); + m_javaGlue.m_postInvalidateDelayed = GetJMethod(env, clazz, + "viewInvalidateDelayed", "(JIIII)V"); + m_javaGlue.m_inFullScreenMode = GetJMethod(env, clazz, "inFullScreenMode", "()Z"); + env->DeleteLocalRef(clazz); + + jclass rectClass = env->FindClass("android/graphics/Rect"); + LOG_ASSERT(rectClass, "Could not find Rect class"); + m_javaGlue.m_rectLeft = env->GetFieldID(rectClass, "left", "I"); + m_javaGlue.m_rectTop = env->GetFieldID(rectClass, "top", "I"); + m_javaGlue.m_rectWidth = GetJMethod(env, rectClass, "width", "()I"); + m_javaGlue.m_rectHeight = GetJMethod(env, rectClass, "height", "()I"); + env->DeleteLocalRef(rectClass); + + jclass rectClassF = env->FindClass("android/graphics/RectF"); + LOG_ASSERT(rectClassF, "Could not find RectF class"); + m_javaGlue.m_rectFLeft = env->GetFieldID(rectClassF, "left", "F"); + m_javaGlue.m_rectFTop = env->GetFieldID(rectClassF, "top", "F"); + m_javaGlue.m_rectFWidth = GetJMethod(env, rectClassF, "width", "()F"); + m_javaGlue.m_rectFHeight = GetJMethod(env, rectClassF, "height", "()F"); + env->DeleteLocalRef(rectClassF); + + env->SetIntField(javaWebView, gWebViewField, (jint)this); + m_viewImpl = (WebViewCore*) viewImpl; + m_frameCacheUI = 0; + m_navPictureUI = 0; + m_generation = 0; + m_heightCanMeasure = false; + m_lastDx = 0; + m_lastDxTime = 0; + m_ringAnimationEnd = 0; + m_baseLayer = 0; + m_glDrawFunctor = 0; + if (drawableDir.isEmpty()) + m_buttonSkin = 0; + else + m_buttonSkin = new RenderSkinButton(am, drawableDir); +#if USE(ACCELERATED_COMPOSITING) + m_glWebViewState = 0; +#endif +} + +~WebView() +{ + if (m_javaGlue.m_obj) + { + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->DeleteWeakGlobalRef(m_javaGlue.m_obj); + m_javaGlue.m_obj = 0; + } +#if USE(ACCELERATED_COMPOSITING) + // We must remove the m_glWebViewState prior to deleting m_baseLayer. If we + // do not remove it here, we risk having BaseTiles trying to paint using a + // deallocated base layer. + stopGL(); +#endif + delete m_frameCacheUI; + delete m_navPictureUI; + SkSafeUnref(m_baseLayer); + delete m_glDrawFunctor; + delete m_buttonSkin; +} + +void stopGL() +{ +#if USE(ACCELERATED_COMPOSITING) + delete m_glWebViewState; + m_glWebViewState = 0; +#endif +} + +WebViewCore* getWebViewCore() const { + return m_viewImpl; +} + +// removes the cursor altogether (e.g., when going to a new page) +void clearCursor() +{ + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) + return; + DBG_NAV_LOG(""); + m_viewImpl->m_hasCursorBounds = false; + root->clearCursor(); + viewInvalidate(); +} + +// leaves the cursor where it is, but suppresses drawing it +void hideCursor() +{ + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) + return; + DBG_NAV_LOG(""); + hideCursor(root); +} + +void hideCursor(CachedRoot* root) +{ + DBG_NAV_LOG("inner"); + m_viewImpl->m_hasCursorBounds = false; + root->hideCursor(); + viewInvalidate(); +} + +#if DUMP_NAV_CACHE +void debugDump() +{ + CachedRoot* root = getFrameCache(DontAllowNewer); + if (root) + root->mDebug.print(); +} +#endif + +// Traverse our stored array of buttons that are in our picture, and update +// their subpictures according to their current state. +// Called from the UI thread. This is the one place in the UI thread where we +// access the buttons stored in the WebCore thread. +// hasFocus keeps track of whether the WebView has focus && windowFocus. +// If not, we do not want to draw the button in a selected or pressed state +void nativeRecordButtons(bool hasFocus, bool pressed, bool invalidate) +{ + bool cursorIsOnButton = false; + const CachedFrame* cachedFrame; + const CachedNode* cachedCursor = 0; + // Lock the mutex, since we now share with the WebCore thread. + m_viewImpl->gButtonMutex.lock(); + if (m_viewImpl->m_buttons.size() && m_buttonSkin) { + // FIXME: In a future change, we should keep track of whether the selection + // has changed to short circuit (note that we would still need to update + // if we received new buttons from the WebCore thread). + WebCore::Node* cursor = 0; + CachedRoot* root = getFrameCache(DontAllowNewer); + if (root) { + cachedCursor = root->currentCursor(&cachedFrame); + if (cachedCursor) + cursor = (WebCore::Node*) cachedCursor->nodePointer(); + } + + // Traverse the array, and update each button, depending on whether it + // is selected. + Container* end = m_viewImpl->m_buttons.end(); + for (Container* ptr = m_viewImpl->m_buttons.begin(); ptr != end; ptr++) { + RenderSkinAndroid::State state = RenderSkinAndroid::kNormal; + if (ptr->matches(cursor)) { + cursorIsOnButton = true; + // If the WebView is out of focus/window focus, set the state to + // normal, but still keep track of the fact that the selected is a + // button + if (hasFocus) { + if (pressed || m_ring.m_isPressed) + state = RenderSkinAndroid::kPressed; + else if (SkTime::GetMSecs() < m_ringAnimationEnd) + state = RenderSkinAndroid::kFocused; + } + } + ptr->updateFocusState(state, m_buttonSkin); + } + } + m_viewImpl->gButtonMutex.unlock(); + if (invalidate && cachedCursor && cursorIsOnButton) { + const WebCore::IntRect& b = cachedCursor->bounds(cachedFrame); + viewInvalidateRect(b.x(), b.y(), b.right(), b.bottom()); + } +} + +// The caller has already determined that the desired document rect corresponds +// to the main picture, and not a layer +void scrollRectOnScreen(const IntRect& rect) +{ + if (rect.isEmpty()) + return; + SkRect visible; + calcOurContentVisibleRect(&visible); + int dx = 0; + int left = rect.x(); + int right = rect.right(); + if (left < visible.fLeft) { + dx = left - visible.fLeft; + // Only scroll right if the entire width can fit on screen. + } else if (right > visible.fRight && right - left < visible.width()) { + dx = right - visible.fRight; + } + int dy = 0; + int top = rect.y(); + int bottom = rect.bottom(); + if (top < visible.fTop) { + dy = top - visible.fTop; + // Only scroll down if the entire height can fit on screen + } else if (bottom > visible.fBottom && bottom - top < visible.height()) { + dy = bottom - visible.fBottom; + } + if ((dx|dy) == 0 || !scrollBy(dx, dy)) + return; + viewInvalidate(); +} + +void calcOurContentVisibleRect(SkRect* r) +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + jclass rectClass = env->FindClass("android/graphics/RectF"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(FFFF)V"); + jobject jRect = env->NewObject(rectClass, init, 0, 0, 0, 0); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_calcOurContentVisibleRectF, jRect); + r->fLeft = env->GetFloatField(jRect, m_javaGlue.m_rectFLeft); + r->fTop = env->GetFloatField(jRect, m_javaGlue.m_rectFTop); + r->fRight = r->fLeft + env->CallFloatMethod(jRect, m_javaGlue.m_rectFWidth); + r->fBottom = r->fTop + env->CallFloatMethod(jRect, m_javaGlue.m_rectFHeight); + env->DeleteLocalRef(rectClass); + env->DeleteLocalRef(jRect); + checkException(env); +} + +void resetCursorRing() +{ + m_ringAnimationEnd = 0; + m_viewImpl->m_hasCursorBounds = false; +} + +bool drawCursorPreamble(CachedRoot* root) +{ + const CachedFrame* frame; + const CachedNode* node = root->currentCursor(&frame); + if (!node) { + DBG_NAV_LOGV("%s", "!node"); + resetCursorRing(); + return false; + } + m_ring.setIsButton(node); + if (node->isHidden()) { + DBG_NAV_LOG("node->isHidden()"); + m_viewImpl->m_hasCursorBounds = false; + return false; + } +#if USE(ACCELERATED_COMPOSITING) + if (node->isInLayer() && root->rootLayer()) { + LayerAndroid* layer = const_cast<LayerAndroid*>(root->rootLayer()); + SkRect visible; + calcOurContentVisibleRect(&visible); + layer->updateFixedLayersPositions(visible); + layer->updatePositions(); + } +#endif + setVisibleRect(root); + m_ring.m_root = root; + m_ring.m_frame = frame; + m_ring.m_node = node; + SkMSec time = SkTime::GetMSecs(); + m_ring.m_isPressed = time < m_ringAnimationEnd + && m_ringAnimationEnd != UINT_MAX; + return true; +} + +void drawCursorPostamble() +{ + if (m_ringAnimationEnd == UINT_MAX) + return; + SkMSec time = SkTime::GetMSecs(); + if (time < m_ringAnimationEnd) { + // views assume that inval bounds coordinates are non-negative + WebCore::IntRect invalBounds(0, 0, INT_MAX, INT_MAX); + invalBounds.intersect(m_ring.m_absBounds); + postInvalidateDelayed(m_ringAnimationEnd - time, invalBounds); + } else { + hideCursor(const_cast<CachedRoot*>(m_ring.m_root)); + } +} + +bool drawGL(WebCore::IntRect& viewRect, WebCore::IntRect* invalRect, WebCore::IntRect& webViewRect, + int titleBarHeight, WebCore::IntRect& clip, float scale, int extras) +{ +#if USE(ACCELERATED_COMPOSITING) + if (!m_baseLayer || inFullScreenMode()) + return false; + + if (!m_glWebViewState) { + m_glWebViewState = new GLWebViewState(&m_viewImpl->gButtonMutex); + if (m_baseLayer->content()) { + SkRegion region; + SkIRect rect; + rect.set(0, 0, m_baseLayer->content()->width(), m_baseLayer->content()->height()); + region.setRect(rect); + m_glWebViewState->setBaseLayer(m_baseLayer, region, false, false); + } + } + + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + if (extras == DrawExtrasCursorRing) + resetCursorRing(); + return false; + } + DrawExtra* extra = 0; + switch (extras) { + case DrawExtrasFind: + extra = &m_findOnPage; + break; + case DrawExtrasSelection: + extra = &m_selectText; + break; + case DrawExtrasCursorRing: + if (drawCursorPreamble(root) && m_ring.setup()) { + if (!m_ring.m_isButton) + extra = &m_ring; + drawCursorPostamble(); + } + break; + default: + ; + } + + unsigned int pic = m_glWebViewState->currentPictureCounter(); + + SkPicture picture; + IntRect rect(0, 0, 0, 0); + bool allowSame = false; + m_glWebViewState->resetRings(); + if (extra) { + if (extra == &m_ring) { + m_glWebViewState->setRings(m_ring.rings(), m_ring.m_isPressed); + } else { + LayerAndroid mainPicture(m_navPictureUI); + PictureSet* content = m_baseLayer->content(); + SkCanvas* canvas = picture.beginRecording(content->width(), + content->height()); + extra->draw(canvas, &mainPicture, &rect); + picture.endRecording(); + } + } else if (extras == DrawExtrasCursorRing && m_ring.m_isButton) { + const CachedFrame* cachedFrame; + const CachedNode* cachedCursor = root->currentCursor(&cachedFrame); + if (cachedCursor) { + rect = cachedCursor->bounds(cachedFrame); + allowSame = true; + } + } + m_glWebViewState->setExtra(m_baseLayer, picture, rect, allowSame); + + LayerAndroid* compositeLayer = compositeRoot(); + if (compositeLayer) + compositeLayer->setExtra(extra); + + SkRect visibleRect; + calcOurContentVisibleRect(&visibleRect); + bool ret = m_glWebViewState->drawGL(viewRect, visibleRect, invalRect, + webViewRect, titleBarHeight, clip, scale); + if (ret || m_glWebViewState->currentPictureCounter() != pic) + return true; +#endif + return false; +} + +PictureSet* draw(SkCanvas* canvas, SkColor bgColor, int extras, bool split) +{ + PictureSet* ret = 0; + if (!m_baseLayer) { + canvas->drawColor(bgColor); + return ret; + } + + // draw the content of the base layer first + PictureSet* content = m_baseLayer->content(); + int sc = canvas->save(SkCanvas::kClip_SaveFlag); + canvas->clipRect(SkRect::MakeLTRB(0, 0, content->width(), + content->height()), SkRegion::kDifference_Op); + canvas->drawColor(bgColor); + canvas->restoreToCount(sc); + if (content->draw(canvas)) + ret = split ? new PictureSet(*content) : 0; + + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + if (extras == DrawExtrasCursorRing) + resetCursorRing(); + return ret; + } + LayerAndroid mainPicture(m_navPictureUI); + DrawExtra* extra = 0; + switch (extras) { + case DrawExtrasFind: + extra = &m_findOnPage; + break; + case DrawExtrasSelection: + extra = &m_selectText; + break; + case DrawExtrasCursorRing: + if (drawCursorPreamble(root) && m_ring.setup()) { + if (!m_ring.m_isButton) + extra = &m_ring; + drawCursorPostamble(); + } + break; + default: + ; + } + if (extra) { + IntRect dummy; // inval area, unused for now + extra->draw(canvas, &mainPicture, &dummy); + } +#if USE(ACCELERATED_COMPOSITING) + LayerAndroid* compositeLayer = compositeRoot(); + if (!compositeLayer) + return ret; + compositeLayer->setExtra(extra); + SkRect visible; + calcOurContentVisibleRect(&visible); + // call this to be sure we've adjusted for any scrolling or animations + // before we actually draw + compositeLayer->updateFixedLayersPositions(visible); + compositeLayer->updatePositions(); + // We have to set the canvas' matrix on the base layer + // (to have fixed layers work as intended) + SkAutoCanvasRestore restore(canvas, true); + m_baseLayer->setMatrix(canvas->getTotalMatrix()); + canvas->resetMatrix(); + m_baseLayer->draw(canvas); +#endif + return ret; +} + + +bool cursorIsTextInput(FrameCachePermission allowNewer) +{ + CachedRoot* root = getFrameCache(allowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + return false; + } + const CachedNode* cursor = root->currentCursor(); + if (!cursor) { + DBG_NAV_LOG("!cursor"); + return false; + } + DBG_NAV_LOGD("%s", cursor->isTextInput() ? "true" : "false"); + return cursor->isTextInput(); +} + +void cursorRingBounds(WebCore::IntRect* bounds) +{ + DBG_NAV_LOGD("%s", ""); + CachedRoot* root = getFrameCache(DontAllowNewer); + if (root) { + const CachedFrame* cachedFrame; + const CachedNode* cachedNode = root->currentCursor(&cachedFrame); + if (cachedNode) { + *bounds = cachedNode->cursorRingBounds(cachedFrame); + DBG_NAV_LOGD("bounds={%d,%d,%d,%d}", bounds->x(), bounds->y(), + bounds->width(), bounds->height()); + return; + } + } + *bounds = WebCore::IntRect(0, 0, 0, 0); +} + +void fixCursor() +{ + m_viewImpl->gCursorBoundsMutex.lock(); + bool hasCursorBounds = m_viewImpl->m_hasCursorBounds; + IntRect bounds = m_viewImpl->m_cursorBounds; + m_viewImpl->gCursorBoundsMutex.unlock(); + if (!hasCursorBounds) + return; + int x, y; + const CachedFrame* frame; + const CachedNode* node = m_frameCacheUI->findAt(bounds, &frame, &x, &y, true); + if (!node) + return; + // require that node have approximately the same bounds (+/- 4) and the same + // center (+/- 2) + IntPoint oldCenter = IntPoint(bounds.x() + (bounds.width() >> 1), + bounds.y() + (bounds.height() >> 1)); + IntRect newBounds = node->bounds(frame); + IntPoint newCenter = IntPoint(newBounds.x() + (newBounds.width() >> 1), + newBounds.y() + (newBounds.height() >> 1)); + DBG_NAV_LOGD("oldCenter=(%d,%d) newCenter=(%d,%d)" + " bounds=(%d,%d,w=%d,h=%d) newBounds=(%d,%d,w=%d,h=%d)", + oldCenter.x(), oldCenter.y(), newCenter.x(), newCenter.y(), + bounds.x(), bounds.y(), bounds.width(), bounds.height(), + newBounds.x(), newBounds.y(), newBounds.width(), newBounds.height()); + if (abs(oldCenter.x() - newCenter.x()) > 2) + return; + if (abs(oldCenter.y() - newCenter.y()) > 2) + return; + if (abs(bounds.x() - newBounds.x()) > 4) + return; + if (abs(bounds.y() - newBounds.y()) > 4) + return; + if (abs(bounds.right() - newBounds.right()) > 4) + return; + if (abs(bounds.bottom() - newBounds.bottom()) > 4) + return; + DBG_NAV_LOGD("node=%p frame=%p x=%d y=%d bounds=(%d,%d,w=%d,h=%d)", + node, frame, x, y, bounds.x(), bounds.y(), bounds.width(), + bounds.height()); + m_frameCacheUI->setCursor(const_cast<CachedFrame*>(frame), + const_cast<CachedNode*>(node)); +} + +CachedRoot* getFrameCache(FrameCachePermission allowNewer) +{ + if (!m_viewImpl->m_updatedFrameCache) { + DBG_NAV_LOGV("%s", "!m_viewImpl->m_updatedFrameCache"); + return m_frameCacheUI; + } + if (allowNewer == DontAllowNewer && m_viewImpl->m_lastGeneration < m_generation) { + DBG_NAV_LOGD("allowNewer==DontAllowNewer m_viewImpl->m_lastGeneration=%d" + " < m_generation=%d", m_viewImpl->m_lastGeneration, m_generation); + return m_frameCacheUI; + } + DBG_NAV_LOGD("%s", "m_viewImpl->m_updatedFrameCache == true"); + const CachedFrame* oldCursorFrame; + const CachedNode* oldCursorNode = m_frameCacheUI ? + m_frameCacheUI->currentCursor(&oldCursorFrame) : 0; +#if USE(ACCELERATED_COMPOSITING) + int layerId = -1; + if (oldCursorNode && oldCursorNode->isInLayer()) { + const LayerAndroid* cursorLayer = oldCursorFrame->layer(oldCursorNode) + ->layer(m_frameCacheUI->rootLayer()); + if (cursorLayer) + layerId = cursorLayer->uniqueId(); + } +#endif + // get id from old layer and use to find new layer + bool oldFocusIsTextInput = false; + void* oldFocusNodePointer = 0; + if (m_frameCacheUI) { + const CachedNode* oldFocus = m_frameCacheUI->currentFocus(); + if (oldFocus) { + oldFocusIsTextInput = oldFocus->isTextInput(); + oldFocusNodePointer = oldFocus->nodePointer(); + } + } + m_viewImpl->gFrameCacheMutex.lock(); + delete m_frameCacheUI; + SkSafeUnref(m_navPictureUI); + m_viewImpl->m_updatedFrameCache = false; + m_frameCacheUI = m_viewImpl->m_frameCacheKit; + m_navPictureUI = m_viewImpl->m_navPictureKit; + m_viewImpl->m_frameCacheKit = 0; + m_viewImpl->m_navPictureKit = 0; + m_viewImpl->gFrameCacheMutex.unlock(); + if (m_frameCacheUI) + m_frameCacheUI->setRootLayer(compositeRoot()); +#if USE(ACCELERATED_COMPOSITING) + if (layerId >= 0) { + SkRect visible; + calcOurContentVisibleRect(&visible); + LayerAndroid* layer = const_cast<LayerAndroid*>( + m_frameCacheUI->rootLayer()); + if (layer) { + layer->updateFixedLayersPositions(visible); + layer->updatePositions(); + } + } +#endif + fixCursor(); + if (oldFocusIsTextInput) { + const CachedNode* newFocus = m_frameCacheUI->currentFocus(); + if (newFocus && oldFocusNodePointer != newFocus->nodePointer() + && newFocus->isTextInput() + && newFocus != m_frameCacheUI->currentCursor()) { + // The focus has changed. We may need to update things. + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_domChangedFocus); + checkException(env); + } + } + if (oldCursorNode && (!m_frameCacheUI || !m_frameCacheUI->currentCursor())) + viewInvalidate(); // redraw in case cursor ring is still visible + return m_frameCacheUI; +} + +int getScaledMaxXScroll() +{ + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + int result = env->CallIntMethod(m_javaGlue.object(env).get(), m_javaGlue.m_getScaledMaxXScroll); + checkException(env); + return result; +} + +int getScaledMaxYScroll() +{ + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + int result = env->CallIntMethod(m_javaGlue.object(env).get(), m_javaGlue.m_getScaledMaxYScroll); + checkException(env); + return result; +} + +IntRect getVisibleRect() +{ + IntRect rect; + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + jobject jRect = env->CallObjectMethod(m_javaGlue.object(env).get(), m_javaGlue.m_getVisibleRect); + checkException(env); + rect.setX(env->GetIntField(jRect, m_javaGlue.m_rectLeft)); + checkException(env); + rect.setY(env->GetIntField(jRect, m_javaGlue.m_rectTop)); + checkException(env); + rect.setWidth(env->CallIntMethod(jRect, m_javaGlue.m_rectWidth)); + checkException(env); + rect.setHeight(env->CallIntMethod(jRect, m_javaGlue.m_rectHeight)); + checkException(env); + env->DeleteLocalRef(jRect); + checkException(env); + return rect; +} + +static CachedFrame::Direction KeyToDirection(int32_t keyCode) +{ + switch (keyCode) { + case AKEYCODE_DPAD_RIGHT: + DBG_NAV_LOGD("keyCode=%s", "right"); + return CachedFrame::RIGHT; + case AKEYCODE_DPAD_LEFT: + DBG_NAV_LOGD("keyCode=%s", "left"); + return CachedFrame::LEFT; + case AKEYCODE_DPAD_DOWN: + DBG_NAV_LOGD("keyCode=%s", "down"); + return CachedFrame::DOWN; + case AKEYCODE_DPAD_UP: + DBG_NAV_LOGD("keyCode=%s", "up"); + return CachedFrame::UP; + default: + DBG_NAV_LOGD("bad key %d sent", keyCode); + return CachedFrame::UNINITIALIZED; + } +} + +WTF::String imageURI(int x, int y) +{ + const CachedRoot* root = getFrameCache(DontAllowNewer); + return root ? root->imageURI(x, y) : WTF::String(); +} + +bool cursorWantsKeyEvents() +{ + const CachedRoot* root = getFrameCache(DontAllowNewer); + if (root) { + const CachedNode* focus = root->currentCursor(); + if (focus) + return focus->wantsKeyEvents(); + } + return false; +} + + +/* returns true if the key had no effect (neither scrolled nor changed cursor) */ +bool moveCursor(int keyCode, int count, bool ignoreScroll) +{ + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + return true; + } + + m_viewImpl->m_moveGeneration++; + CachedFrame::Direction direction = KeyToDirection(keyCode); + const CachedFrame* cachedFrame, * oldFrame = 0; + const CachedNode* cursor = root->currentCursor(&oldFrame); + WebCore::IntPoint cursorLocation = root->cursorLocation(); + DBG_NAV_LOGD("old cursor %d (nativeNode=%p) cursorLocation={%d, %d}", + cursor ? cursor->index() : 0, + cursor ? cursor->nodePointer() : 0, cursorLocation.x(), cursorLocation.y()); + WebCore::IntRect visibleRect = setVisibleRect(root); + int xMax = getScaledMaxXScroll(); + int yMax = getScaledMaxYScroll(); + root->setMaxScroll(xMax, yMax); + const CachedNode* cachedNode = 0; + int dx = 0; + int dy = 0; + int counter = count; + while (--counter >= 0) { + WebCore::IntPoint scroll = WebCore::IntPoint(0, 0); + cachedNode = root->moveCursor(direction, &cachedFrame, &scroll); + dx += scroll.x(); + dy += scroll.y(); + } + DBG_NAV_LOGD("new cursor %d (nativeNode=%p) cursorLocation={%d, %d}" + "bounds={%d,%d,w=%d,h=%d}", cachedNode ? cachedNode->index() : 0, + cachedNode ? cachedNode->nodePointer() : 0, + root->cursorLocation().x(), root->cursorLocation().y(), + cachedNode ? cachedNode->bounds(cachedFrame).x() : 0, + cachedNode ? cachedNode->bounds(cachedFrame).y() : 0, + cachedNode ? cachedNode->bounds(cachedFrame).width() : 0, + cachedNode ? cachedNode->bounds(cachedFrame).height() : 0); + // If !m_heightCanMeasure (such as in the browser), we want to scroll no + // matter what + if (!ignoreScroll && (!m_heightCanMeasure || + !cachedNode || + (cursor && cursor->nodePointer() == cachedNode->nodePointer()))) + { + if (count == 1 && dx != 0 && dy == 0 && -m_lastDx == dx && + SkTime::GetMSecs() - m_lastDxTime < 1000) + root->checkForJiggle(&dx); + DBG_NAV_LOGD("scrollBy %d,%d", dx, dy); + if ((dx | dy)) + this->scrollBy(dx, dy); + m_lastDx = dx; + m_lastDxTime = SkTime::GetMSecs(); + } + bool result = false; + if (cachedNode) { + showCursorUntimed(); + m_viewImpl->updateCursorBounds(root, cachedFrame, cachedNode); + root->setCursor(const_cast<CachedFrame*>(cachedFrame), + const_cast<CachedNode*>(cachedNode)); + const CachedNode* focus = root->currentFocus(); + bool clearTextEntry = cachedNode != focus && focus + && cachedNode->nodePointer() != focus->nodePointer() && focus->isTextInput(); + // Stop painting the caret if the old focus was a text input and so is the new cursor. + bool stopPaintingCaret = clearTextEntry && cachedNode->wantsKeyEvents(); + sendMoveMouseIfLatest(clearTextEntry, stopPaintingCaret); + } else { + int docHeight = root->documentHeight(); + int docWidth = root->documentWidth(); + if (visibleRect.bottom() + dy > docHeight) + dy = docHeight - visibleRect.bottom(); + else if (visibleRect.y() + dy < 0) + dy = -visibleRect.y(); + if (visibleRect.right() + dx > docWidth) + dx = docWidth - visibleRect.right(); + else if (visibleRect.x() < 0) + dx = -visibleRect.x(); + result = direction == CachedFrame::LEFT ? dx >= 0 : + direction == CachedFrame::RIGHT ? dx <= 0 : + direction == CachedFrame::UP ? dy >= 0 : dy <= 0; + } + return result; +} + +void notifyProgressFinished() +{ + DBG_NAV_LOGD("cursorIsTextInput=%d", cursorIsTextInput(DontAllowNewer)); + rebuildWebTextView(); +#if DEBUG_NAV_UI + if (m_frameCacheUI) { + const CachedNode* focus = m_frameCacheUI->currentFocus(); + DBG_NAV_LOGD("focus %d (nativeNode=%p)", + focus ? focus->index() : 0, + focus ? focus->nodePointer() : 0); + } +#endif +} + +const CachedNode* findAt(CachedRoot* root, const WebCore::IntRect& rect, + const CachedFrame** framePtr, int* rxPtr, int* ryPtr) +{ + *rxPtr = 0; + *ryPtr = 0; + *framePtr = 0; + if (!root) + return 0; + setVisibleRect(root); + return root->findAt(rect, framePtr, rxPtr, ryPtr, true); +} + +IntRect setVisibleRect(CachedRoot* root) +{ + IntRect visibleRect = getVisibleRect(); + DBG_NAV_LOGD("getVisibleRect %d,%d,%d,%d", + visibleRect.x(), visibleRect.y(), visibleRect.width(), visibleRect.height()); + root->setVisibleRect(visibleRect); + return visibleRect; +} + +void selectBestAt(const WebCore::IntRect& rect) +{ + const CachedFrame* frame; + int rx, ry; + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) + return; + const CachedNode* node = findAt(root, rect, &frame, &rx, &ry); + if (!node) { + DBG_NAV_LOGD("no nodes found root=%p", root); + root->rootHistory()->setMouseBounds(rect); + m_viewImpl->m_hasCursorBounds = false; + root->setCursor(0, 0); + viewInvalidate(); + } else { + DBG_NAV_LOGD("CachedNode:%p (%d)", node, node->index()); + WebCore::IntRect bounds = node->bounds(frame); + root->rootHistory()->setMouseBounds(bounds); + m_viewImpl->updateCursorBounds(root, frame, node); + showCursorTimed(); + root->setCursor(const_cast<CachedFrame*>(frame), + const_cast<CachedNode*>(node)); + } + sendMoveMouseIfLatest(false, false); +} + +const CachedNode* m_cacheHitNode; +const CachedFrame* m_cacheHitFrame; + +bool pointInNavCache(int x, int y, int slop) +{ + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) + return false; + IntRect rect = IntRect(x - slop, y - slop, slop * 2, slop * 2); + int rx, ry; + return (m_cacheHitNode = findAt(root, rect, &m_cacheHitFrame, &rx, &ry)); +} + +bool motionUp(int x, int y, int slop) +{ + bool pageScrolled = false; + IntRect rect = IntRect(x - slop, y - slop, slop * 2, slop * 2); + int rx, ry; + CachedRoot* root = getFrameCache(AllowNewer); + if (!root) + return 0; + const CachedFrame* frame = 0; + const CachedNode* result = findAt(root, rect, &frame, &rx, &ry); + CachedHistory* history = root->rootHistory(); + if (!result) { + DBG_NAV_LOGD("no nodes found root=%p", root); + history->setNavBounds(rect); + m_viewImpl->m_hasCursorBounds = false; + root->hideCursor(); + int dx = root->checkForCenter(x, y); + if (dx) { + scrollBy(dx, 0); + pageScrolled = true; + } + sendMotionUp(frame ? (WebCore::Frame*) frame->framePointer() : 0, + 0, x, y); + viewInvalidate(); + return pageScrolled; + } + DBG_NAV_LOGD("CachedNode:%p (%d) x=%d y=%d rx=%d ry=%d", result, + result->index(), x, y, rx, ry); + WebCore::IntRect navBounds = WebCore::IntRect(rx, ry, 1, 1); + history->setNavBounds(navBounds); + history->setMouseBounds(navBounds); + m_viewImpl->updateCursorBounds(root, frame, result); + root->setCursor(const_cast<CachedFrame*>(frame), + const_cast<CachedNode*>(result)); + if (result->isSyntheticLink()) + overrideUrlLoading(result->getExport()); + else { + sendMotionUp( + (WebCore::Frame*) frame->framePointer(), + (WebCore::Node*) result->nodePointer(), rx, ry); + } + if (result->isTextInput() || result->isSelect() + || result->isContentEditable()) { + showCursorUntimed(); + } else + showCursorTimed(); + return pageScrolled; +} + +#if USE(ACCELERATED_COMPOSITING) +static const ScrollableLayerAndroid* findScrollableLayer( + const LayerAndroid* parent, int x, int y, SkIRect* foundBounds) { + SkRect bounds; + parent->bounds(&bounds); + // Check the parent bounds first; this will clip to within a masking layer's + // bounds. + if (parent->masksToBounds() && !bounds.contains(x, y)) + return 0; + // Move the hit test local to parent. + x -= bounds.fLeft; + y -= bounds.fTop; + int count = parent->countChildren(); + while (count--) { + const LayerAndroid* child = parent->getChild(count); + const ScrollableLayerAndroid* result = findScrollableLayer(child, x, y, + foundBounds); + if (result) { + foundBounds->offset(bounds.fLeft, bounds.fTop); + if (parent->masksToBounds()) { + if (bounds.width() < foundBounds->width()) + foundBounds->fRight = foundBounds->fLeft + bounds.width(); + if (bounds.height() < foundBounds->height()) + foundBounds->fBottom = foundBounds->fTop + bounds.height(); + } + return result; + } + } + if (parent->contentIsScrollable()) { + foundBounds->set(0, 0, bounds.width(), bounds.height()); + return static_cast<const ScrollableLayerAndroid*>(parent); + } + return 0; +} +#endif + +int scrollableLayer(int x, int y, SkIRect* layerRect, SkIRect* bounds) +{ +#if USE(ACCELERATED_COMPOSITING) + const LayerAndroid* layerRoot = compositeRoot(); + if (!layerRoot) + return 0; + const ScrollableLayerAndroid* result = findScrollableLayer(layerRoot, x, y, + bounds); + if (result) { + result->getScrollRect(layerRect); + return result->uniqueId(); + } +#endif + return 0; +} + +int getBlockLeftEdge(int x, int y, float scale) +{ + CachedRoot* root = getFrameCache(AllowNewer); + if (root) + return root->getBlockLeftEdge(x, y, scale); + return -1; +} + +void overrideUrlLoading(const WTF::String& url) +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + jstring jName = wtfStringToJstring(env, url); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_overrideLoading, jName); + env->DeleteLocalRef(jName); +} + +void setFindIsUp(bool up) +{ + DBG_NAV_LOGD("up=%d", up); + m_viewImpl->m_findIsUp = up; +} + +void setFindIsEmpty() +{ + DBG_NAV_LOG(""); + m_findOnPage.clearCurrentLocation(); +} + +void showCursorTimed() +{ + DBG_NAV_LOG(""); + m_ringAnimationEnd = SkTime::GetMSecs() + 500; + viewInvalidate(); +} + +void showCursorUntimed() +{ + DBG_NAV_LOG(""); + m_ring.m_isPressed = false; + m_ringAnimationEnd = UINT_MAX; + viewInvalidate(); +} + +void setHeightCanMeasure(bool measure) +{ + m_heightCanMeasure = measure; +} + +String getSelection() +{ + return m_selectText.getSelection(); +} + +void moveSelection(int x, int y) +{ + m_selectText.moveSelection(getVisibleRect(), x, y); +} + +IntPoint selectableText() +{ + const CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) + return IntPoint(0, 0); + return m_selectText.selectableText(root); +} + +void selectAll() +{ + m_selectText.selectAll(); +} + +int selectionX() +{ + return m_selectText.selectionX(); +} + +int selectionY() +{ + return m_selectText.selectionY(); +} + +void resetSelection() +{ + m_selectText.reset(); +} + +bool startSelection(int x, int y) +{ + const CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) + return false; + return m_selectText.startSelection(root, getVisibleRect(), x, y); +} + +bool wordSelection(int x, int y) +{ + const CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) + return false; + return m_selectText.wordSelection(root, getVisibleRect(), x, y); +} + +bool extendSelection(int x, int y) +{ + m_selectText.extendSelection(getVisibleRect(), x, y); + return true; +} + +bool hitSelection(int x, int y) +{ + return m_selectText.hitSelection(x, y); +} + +void setExtendSelection() +{ + m_selectText.setExtendSelection(true); +} + +void setSelectionPointer(bool set, float scale, int x, int y) +{ + m_selectText.setDrawPointer(set); + if (!set) + return; + m_selectText.m_inverseScale = scale; + m_selectText.m_selectX = x; + m_selectText.m_selectY = y; +} + +void sendMoveFocus(WebCore::Frame* framePtr, WebCore::Node* nodePtr) +{ + DBG_NAV_LOGD("framePtr=%p nodePtr=%p", framePtr, nodePtr); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_sendMoveFocus, (jint) framePtr, (jint) nodePtr); + checkException(env); +} + +void sendMoveMouse(WebCore::Frame* framePtr, WebCore::Node* nodePtr, int x, int y) +{ + DBG_NAV_LOGD("framePtr=%p nodePtr=%p x=%d y=%d", framePtr, nodePtr, x, y); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), m_javaGlue.m_sendMoveMouse, + (jint) framePtr, (jint) nodePtr, x, y); + checkException(env); +} + +void sendMoveMouseIfLatest(bool clearTextEntry, bool stopPaintingCaret) +{ + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_sendMoveMouseIfLatest, clearTextEntry, stopPaintingCaret); + checkException(env); +} + +void sendMotionUp( + WebCore::Frame* framePtr, WebCore::Node* nodePtr, int x, int y) +{ + m_viewImpl->m_touchGeneration = ++m_generation; + DBG_NAV_LOGD("m_generation=%d framePtr=%p nodePtr=%p x=%d y=%d", + m_generation, framePtr, nodePtr, x, y); + LOG_ASSERT(m_javaGlue.m_obj, "A WebView was not associated with this WebViewNative!"); + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), m_javaGlue.m_sendMotionUp, + m_generation, (jint) framePtr, (jint) nodePtr, x, y); + checkException(env); +} + +void findNext(bool forward) +{ + m_findOnPage.findNext(forward); + if (!m_findOnPage.currentMatchIsInLayer()) + scrollRectOnScreen(m_findOnPage.currentMatchBounds()); + viewInvalidate(); +} + +// With this call, WebView takes ownership of matches, and is responsible for +// deleting it. +void setMatches(WTF::Vector<MatchInfo>* matches, jboolean sameAsLastSearch) +{ + // If this search is the same as the last one, check against the old + // location to determine whether to scroll. If the same word is found + // in the same place, then do not scroll. + IntRect oldLocation; + bool checkAgainstOldLocation; + if (sameAsLastSearch && m_findOnPage.isCurrentLocationValid()) { + oldLocation = m_findOnPage.currentMatchBounds(); + checkAgainstOldLocation = true; + } else + checkAgainstOldLocation = false; + + m_findOnPage.setMatches(matches); + + if (!checkAgainstOldLocation + || oldLocation != m_findOnPage.currentMatchBounds()) { + // FIXME: Need to scroll if the match is in a layer. + if (!m_findOnPage.currentMatchIsInLayer()) + scrollRectOnScreen(m_findOnPage.currentMatchBounds()); + } + viewInvalidate(); +} + +int currentMatchIndex() +{ + return m_findOnPage.currentMatchIndex(); +} + +bool scrollBy(int dx, int dy) +{ + LOG_ASSERT(m_javaGlue.m_obj, "A java object was not associated with this native WebView!"); + + JNIEnv* env = JSC::Bindings::getJNIEnv(); + bool result = env->CallBooleanMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_scrollBy, dx, dy, true); + checkException(env); + return result; +} + +bool hasCursorNode() +{ + CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + return false; + } + const CachedNode* cursorNode = root->currentCursor(); + DBG_NAV_LOGD("cursorNode=%d (nodePointer=%p)", + cursorNode ? cursorNode->index() : -1, + cursorNode ? cursorNode->nodePointer() : 0); + return cursorNode; +} + +bool hasFocusNode() +{ + CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) { + DBG_NAV_LOG("!root"); + return false; + } + const CachedNode* focusNode = root->currentFocus(); + DBG_NAV_LOGD("focusNode=%d (nodePointer=%p)", + focusNode ? focusNode->index() : -1, + focusNode ? focusNode->nodePointer() : 0); + return focusNode; +} + +void rebuildWebTextView() +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_rebuildWebTextView); + checkException(env); +} + +void viewInvalidate() +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), m_javaGlue.m_viewInvalidate); + checkException(env); +} + +void viewInvalidateRect(int l, int t, int r, int b) +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), m_javaGlue.m_viewInvalidateRect, l, r, t, b); + checkException(env); +} + +void postInvalidateDelayed(int64_t delay, const WebCore::IntRect& bounds) +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + env->CallVoidMethod(m_javaGlue.object(env).get(), m_javaGlue.m_postInvalidateDelayed, + delay, bounds.x(), bounds.y(), bounds.right(), bounds.bottom()); + checkException(env); +} + +bool inFullScreenMode() +{ + JNIEnv* env = JSC::Bindings::getJNIEnv(); + jboolean result = env->CallBooleanMethod(m_javaGlue.object(env).get(), + m_javaGlue.m_inFullScreenMode); + checkException(env); + return result; +} + +int moveGeneration() +{ + return m_viewImpl->m_moveGeneration; +} + +LayerAndroid* compositeRoot() const +{ + LOG_ASSERT(!m_baseLayer || m_baseLayer->countChildren() == 1, + "base layer can't have more than one child %s", __FUNCTION__); + if (m_baseLayer && m_baseLayer->countChildren() == 1) + return static_cast<LayerAndroid*>(m_baseLayer->getChild(0)); + else + return 0; +} + +#if ENABLE(ANDROID_OVERFLOW_SCROLL) +static void copyScrollPositionRecursive(const LayerAndroid* from, + LayerAndroid* root) +{ + if (!from || !root) + return; + for (int i = 0; i < from->countChildren(); i++) { + const LayerAndroid* l = from->getChild(i); + if (l->contentIsScrollable()) { + const SkPoint& pos = l->getPosition(); + LayerAndroid* match = root->findById(l->uniqueId()); + if (match && match->contentIsScrollable()) + match->setPosition(pos.fX, pos.fY); + } + copyScrollPositionRecursive(l, root); + } +} +#endif + +void setBaseLayer(BaseLayerAndroid* layer, SkRegion& inval, bool showVisualIndicator, + bool isPictureAfterFirstLayout) +{ +#if USE(ACCELERATED_COMPOSITING) + if (m_glWebViewState) + m_glWebViewState->setBaseLayer(layer, inval, showVisualIndicator, + isPictureAfterFirstLayout); +#endif + +#if ENABLE(ANDROID_OVERFLOW_SCROLL) + if (layer) { + LayerAndroid* newCompositeRoot = static_cast<LayerAndroid*>(layer->getChild(0)); + copyScrollPositionRecursive(compositeRoot(), newCompositeRoot); + } +#endif + SkSafeUnref(m_baseLayer); + m_baseLayer = layer; + CachedRoot* root = getFrameCache(DontAllowNewer); + if (!root) + return; + root->resetLayers(); + root->setRootLayer(compositeRoot()); +} + +void replaceBaseContent(PictureSet* set) +{ + if (!m_baseLayer) + return; + m_baseLayer->setContent(*set); + delete set; +} + +void copyBaseContentToPicture(SkPicture* picture) +{ + if (!m_baseLayer) + return; + PictureSet* content = m_baseLayer->content(); + m_baseLayer->drawCanvas(picture->beginRecording(content->width(), content->height(), + SkPicture::kUsePathBoundsForClip_RecordingFlag)); + picture->endRecording(); +} + +bool hasContent() { + if (!m_baseLayer) + return false; + return !m_baseLayer->content()->isEmpty(); +} + +void setFunctor(Functor* functor) { + delete m_glDrawFunctor; + m_glDrawFunctor = functor; +} + +Functor* getFunctor() { + return m_glDrawFunctor; +} + +private: // local state for WebView + // private to getFrameCache(); other functions operate in a different thread + CachedRoot* m_frameCacheUI; // navigation data ready for use + WebViewCore* m_viewImpl; + int m_generation; // associate unique ID with sent kit focus to match with ui + SkPicture* m_navPictureUI; + SkMSec m_ringAnimationEnd; + // Corresponds to the same-named boolean on the java side. + bool m_heightCanMeasure; + int m_lastDx; + SkMSec m_lastDxTime; + SelectText m_selectText; + FindOnPage m_findOnPage; + CursorRing m_ring; + BaseLayerAndroid* m_baseLayer; + Functor* m_glDrawFunctor; +#if USE(ACCELERATED_COMPOSITING) + GLWebViewState* m_glWebViewState; +#endif + const RenderSkinButton* m_buttonSkin; +}; // end of WebView class + + +/** + * This class holds a function pointer and parameters for calling drawGL into a specific + * viewport. The pointer to the Functor will be put on a framework display list to be called + * when the display list is replayed. + */ +class GLDrawFunctor : Functor { + public: + GLDrawFunctor(WebView* _wvInstance, + bool(WebView::*_funcPtr)(WebCore::IntRect&, WebCore::IntRect*, WebCore::IntRect&, int, WebCore::IntRect&, jfloat, jint), + WebCore::IntRect _viewRect, float _scale, int _extras) { + wvInstance = _wvInstance; + funcPtr = _funcPtr; + viewRect = _viewRect; + scale = _scale; + extras = _extras; + }; + status_t operator()(int messageId, void* data) { + if (viewRect.isEmpty()) { + // NOOP operation if viewport is empty + return 0; + } + + WebCore::IntRect inval; + int titlebarHeight = webViewRect.height() - viewRect.height(); + + uirenderer::DrawGlInfo* info = reinterpret_cast<uirenderer::DrawGlInfo*>(data); + WebCore::IntRect localViewRect = viewRect; + if (info->isLayer) + localViewRect.move(-1 * localViewRect.x(), -1 * localViewRect.y()); + + WebCore::IntRect clip(info->clipLeft, info->clipTop, + info->clipRight - info->clipLeft, + info->clipBottom - info->clipTop); + + bool retVal = (*wvInstance.*funcPtr)(localViewRect, &inval, webViewRect, titlebarHeight, clip, scale, extras); + if (retVal) { + IntRect finalInval; + if (inval.isEmpty()) { + finalInval = webViewRect; + retVal = true; + } else { + finalInval.setX(webViewRect.x() + inval.x()); + finalInval.setY(webViewRect.y() + titlebarHeight + inval.y()); + finalInval.setWidth(inval.width()); + finalInval.setHeight(inval.height()); + } + info->dirtyLeft = finalInval.x(); + info->dirtyTop = finalInval.y(); + info->dirtyRight = finalInval.right(); + info->dirtyBottom = finalInval.bottom(); + } + // return 1 if invalidation needed, 0 otherwise + return retVal ? 1 : 0; + } + void updateRect(WebCore::IntRect& _viewRect) { + viewRect = _viewRect; + } + void updateViewRect(WebCore::IntRect& _viewRect) { + webViewRect = _viewRect; + } + private: + WebView* wvInstance; + bool (WebView::*funcPtr)(WebCore::IntRect&, WebCore::IntRect*, WebCore::IntRect&, int, WebCore::IntRect&, float, int); + WebCore::IntRect viewRect; + WebCore::IntRect webViewRect; + jfloat scale; + jint extras; +}; + +/* + * Native JNI methods + */ +static int nativeCacheHitFramePointer(JNIEnv *env, jobject obj) +{ + return reinterpret_cast<int>(GET_NATIVE_VIEW(env, obj) + ->m_cacheHitFrame->framePointer()); +} + +static jobject nativeCacheHitNodeBounds(JNIEnv *env, jobject obj) +{ + WebCore::IntRect bounds = GET_NATIVE_VIEW(env, obj) + ->m_cacheHitNode->originalAbsoluteBounds(); + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, bounds.x(), + bounds.y(), bounds.right(), bounds.bottom()); + env->DeleteLocalRef(rectClass); + return rect; +} + +static int nativeCacheHitNodePointer(JNIEnv *env, jobject obj) +{ + return reinterpret_cast<int>(GET_NATIVE_VIEW(env, obj) + ->m_cacheHitNode->nodePointer()); +} + +static bool nativeCacheHitIsPlugin(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->m_cacheHitNode->isPlugin(); +} + +static void nativeClearCursor(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + view->clearCursor(); +} + +static void nativeCreate(JNIEnv *env, jobject obj, int viewImpl, jstring drawableDir, + jobject jAssetManager) +{ + AssetManager* am = assetManagerForJavaObject(env, jAssetManager); + WTF::String dir = jstringToWtfString(env, drawableDir); + WebView* webview = new WebView(env, obj, viewImpl, dir, am); + // NEED THIS OR SOMETHING LIKE IT! + //Release(obj); +} + +static jint nativeCursorFramePointer(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return 0; + const CachedFrame* frame = 0; + (void) root->currentCursor(&frame); + return reinterpret_cast<int>(frame ? frame->framePointer() : 0); +} + +static const CachedNode* getCursorNode(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + return root ? root->currentCursor() : 0; +} + +static const CachedNode* getCursorNode(JNIEnv *env, jobject obj, + const CachedFrame** frame) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + return root ? root->currentCursor(frame) : 0; +} + +static const CachedNode* getFocusCandidate(JNIEnv *env, jobject obj, + const CachedFrame** frame) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return 0; + const CachedNode* cursor = root->currentCursor(frame); + if (cursor && cursor->wantsKeyEvents()) + return cursor; + return root->currentFocus(frame); +} + +static bool focusCandidateHasNextTextfield(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return false; + const CachedNode* cursor = root->currentCursor(); + if (!cursor || !cursor->isTextInput()) + cursor = root->currentFocus(); + if (!cursor || !cursor->isTextInput()) return false; + return root->nextTextField(cursor, 0); +} + +static const CachedNode* getFocusNode(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + return root ? root->currentFocus() : 0; +} + +static const CachedNode* getFocusNode(JNIEnv *env, jobject obj, + const CachedFrame** frame) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + return root ? root->currentFocus(frame) : 0; +} + +static const CachedInput* getInputCandidate(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return 0; + const CachedFrame* frame; + const CachedNode* cursor = root->currentCursor(&frame); + if (!cursor || !cursor->wantsKeyEvents()) + cursor = root->currentFocus(&frame); + return cursor ? frame->textInput(cursor) : 0; +} + +static jboolean nativePageShouldHandleShiftAndArrows(JNIEnv *env, jobject obj) +{ + const CachedNode* focus = getFocusNode(env, obj); + if (!focus) return false; + // Plugins handle shift and arrows whether or not they have focus. + if (focus->isPlugin()) return true; + const CachedNode* cursor = getCursorNode(env, obj); + // ContentEditable nodes should only receive shift and arrows if they have + // both the cursor and the focus. + return cursor && cursor->nodePointer() == focus->nodePointer() + && cursor->isContentEditable(); +} + +static jobject nativeCursorNodeBounds(JNIEnv *env, jobject obj) +{ + const CachedFrame* frame; + const CachedNode* node = getCursorNode(env, obj, &frame); + WebCore::IntRect bounds = node ? node->bounds(frame) + : WebCore::IntRect(0, 0, 0, 0); + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, bounds.x(), + bounds.y(), bounds.right(), bounds.bottom()); + env->DeleteLocalRef(rectClass); + return rect; +} + +static jint nativeCursorNodePointer(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getCursorNode(env, obj); + return reinterpret_cast<int>(node ? node->nodePointer() : 0); +} + +static jobject nativeCursorPosition(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + const CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + WebCore::IntPoint pos = WebCore::IntPoint(0, 0); + if (root) + root->getSimulatedMousePosition(&pos); + jclass pointClass = env->FindClass("android/graphics/Point"); + jmethodID init = env->GetMethodID(pointClass, "<init>", "(II)V"); + jobject point = env->NewObject(pointClass, init, pos.x(), pos.y()); + env->DeleteLocalRef(pointClass); + return point; +} + +static WebCore::IntRect jrect_to_webrect(JNIEnv* env, jobject obj) +{ + int L, T, R, B; + GraphicsJNI::get_jrect(env, obj, &L, &T, &R, &B); + return WebCore::IntRect(L, T, R - L, B - T); +} + +static bool nativeCursorIntersects(JNIEnv *env, jobject obj, jobject visRect) +{ + const CachedFrame* frame; + const CachedNode* node = getCursorNode(env, obj, &frame); + return node ? node->bounds(frame).intersects( + jrect_to_webrect(env, visRect)) : false; +} + +static bool nativeCursorIsAnchor(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getCursorNode(env, obj); + return node ? node->isAnchor() : false; +} + +static bool nativeCursorIsTextInput(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getCursorNode(env, obj); + return node ? node->isTextInput() : false; +} + +static jobject nativeCursorText(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getCursorNode(env, obj); + if (!node) + return 0; + WTF::String value = node->getExport(); + return wtfStringToJstring(env, value); +} + +static void nativeDebugDump(JNIEnv *env, jobject obj) +{ +#if DUMP_NAV_CACHE + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + view->debugDump(); +#endif +} + +static jint nativeDraw(JNIEnv *env, jobject obj, jobject canv, jint color, + jint extras, jboolean split) { + SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, canv); + return reinterpret_cast<jint>(GET_NATIVE_VIEW(env, obj)->draw(canvas, color, extras, split)); +} + +static jint nativeGetDrawGLFunction(JNIEnv *env, jobject obj, jobject jrect, jobject jviewrect, + jfloat scale, jint extras) { + WebCore::IntRect viewRect; + if (jrect == NULL) { + viewRect = WebCore::IntRect(); + } else { + viewRect = jrect_to_webrect(env, jrect); + } + WebView *wvInstance = GET_NATIVE_VIEW(env, obj); + GLDrawFunctor* functor = new GLDrawFunctor(wvInstance, &android::WebView::drawGL, + viewRect, scale, extras); + wvInstance->setFunctor((Functor*) functor); + + WebCore::IntRect webViewRect; + if (jviewrect == NULL) { + webViewRect = WebCore::IntRect(); + } else { + webViewRect = jrect_to_webrect(env, jviewrect); + } + functor->updateViewRect(webViewRect); + + return (jint)functor; +} + +static void nativeUpdateDrawGLFunction(JNIEnv *env, jobject obj, jobject jrect, jobject jviewrect) { + WebView *wvInstance = GET_NATIVE_VIEW(env, obj); + if (wvInstance != NULL) { + GLDrawFunctor* functor = (GLDrawFunctor*) wvInstance->getFunctor(); + if (functor != NULL) { + WebCore::IntRect viewRect; + if (jrect == NULL) { + viewRect = WebCore::IntRect(); + } else { + viewRect = jrect_to_webrect(env, jrect); + } + functor->updateRect(viewRect); + + WebCore::IntRect webViewRect; + if (jviewrect == NULL) { + webViewRect = WebCore::IntRect(); + } else { + webViewRect = jrect_to_webrect(env, jviewrect); + } + functor->updateViewRect(webViewRect); + } + } +} + +static bool nativeEvaluateLayersAnimations(JNIEnv *env, jobject obj) +{ +#if USE(ACCELERATED_COMPOSITING) + LayerAndroid* root = GET_NATIVE_VIEW(env, obj)->compositeRoot(); + if (root) + return root->evaluateAnimations(); +#endif + return false; +} + +static void nativeSetBaseLayer(JNIEnv *env, jobject obj, jint layer, jobject inval, + jboolean showVisualIndicator, + jboolean isPictureAfterFirstLayout) +{ + BaseLayerAndroid* layerImpl = reinterpret_cast<BaseLayerAndroid*>(layer); + SkRegion invalRegion; + if (inval) + invalRegion = *GraphicsJNI::getNativeRegion(env, inval); + GET_NATIVE_VIEW(env, obj)->setBaseLayer(layerImpl, invalRegion, showVisualIndicator, + isPictureAfterFirstLayout); +} + +static void nativeReplaceBaseContent(JNIEnv *env, jobject obj, jint content) +{ + PictureSet* set = reinterpret_cast<PictureSet*>(content); + GET_NATIVE_VIEW(env, obj)->replaceBaseContent(set); +} + +static void nativeCopyBaseContentToPicture(JNIEnv *env, jobject obj, jobject pict) +{ + SkPicture* picture = GraphicsJNI::getNativePicture(env, pict); + GET_NATIVE_VIEW(env, obj)->copyBaseContentToPicture(picture); +} + +static bool nativeHasContent(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->hasContent(); +} + +static jobject nativeImageURI(JNIEnv *env, jobject obj, jint x, jint y) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + WTF::String uri = view->imageURI(x, y); + return wtfStringToJstring(env, uri); +} + +static jint nativeFocusCandidateFramePointer(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return 0; + const CachedFrame* frame = 0; + const CachedNode* cursor = root->currentCursor(&frame); + if (!cursor || !cursor->wantsKeyEvents()) + (void) root->currentFocus(&frame); + return reinterpret_cast<int>(frame ? frame->framePointer() : 0); +} + +static bool nativeFocusCandidateIsPassword(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input && input->getType() == CachedInput::PASSWORD; +} + +static bool nativeFocusCandidateIsRtlText(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input ? input->isRtlText() : false; +} + +static bool nativeFocusCandidateIsTextInput(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getFocusCandidate(env, obj, 0); + return node ? node->isTextInput() : false; +} + +static jint nativeFocusCandidateMaxLength(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input ? input->maxLength() : false; +} + +static jint nativeFocusCandidateIsAutoComplete(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input ? input->autoComplete() : false; +} + +static jobject nativeFocusCandidateName(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + if (!input) + return 0; + const WTF::String& name = input->name(); + return wtfStringToJstring(env, name); +} + +static jobject createJavaRect(JNIEnv* env, int x, int y, int right, int bottom) +{ + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, x, y, right, bottom); + env->DeleteLocalRef(rectClass); + return rect; +} + +static jobject nativeFocusCandidateNodeBounds(JNIEnv *env, jobject obj) +{ + const CachedFrame* frame; + const CachedNode* node = getFocusCandidate(env, obj, &frame); + WebCore::IntRect bounds = node ? node->bounds(frame) + : WebCore::IntRect(0, 0, 0, 0); + return createJavaRect(env, bounds.x(), bounds.y(), bounds.right(), bounds.bottom()); +} + +static jobject nativeFocusCandidatePaddingRect(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + if (!input) + return 0; + // Note that the Java Rect is being used to pass four integers, rather than + // being used as an actual rectangle. + return createJavaRect(env, input->paddingLeft(), input->paddingTop(), + input->paddingRight(), input->paddingBottom()); +} + +static jint nativeFocusCandidatePointer(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getFocusCandidate(env, obj, 0); + return reinterpret_cast<int>(node ? node->nodePointer() : 0); +} + +static jobject nativeFocusCandidateText(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getFocusCandidate(env, obj, 0); + if (!node) + return 0; + WTF::String value = node->getExport(); + return wtfStringToJstring(env, value); +} + +static int nativeFocusCandidateLineHeight(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input ? input->lineHeight() : 0; +} + +static jfloat nativeFocusCandidateTextSize(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + return input ? input->textSize() : 0.f; +} + +static int nativeFocusCandidateType(JNIEnv *env, jobject obj) +{ + const CachedInput* input = getInputCandidate(env, obj); + if (!input) + return CachedInput::NONE; + + if (input->isTextArea()) + return CachedInput::TEXT_AREA; + + return input->getType(); +} + +static bool nativeFocusIsPlugin(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getFocusNode(env, obj); + return node ? node->isPlugin() : false; +} + +static jobject nativeFocusNodeBounds(JNIEnv *env, jobject obj) +{ + const CachedFrame* frame; + const CachedNode* node = getFocusNode(env, obj, &frame); + WebCore::IntRect bounds = node ? node->bounds(frame) + : WebCore::IntRect(0, 0, 0, 0); + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, bounds.x(), + bounds.y(), bounds.right(), bounds.bottom()); + env->DeleteLocalRef(rectClass); + return rect; +} + +static jint nativeFocusNodePointer(JNIEnv *env, jobject obj) +{ + const CachedNode* node = getFocusNode(env, obj); + return node ? reinterpret_cast<int>(node->nodePointer()) : 0; +} + +static bool nativeCursorWantsKeyEvents(JNIEnv* env, jobject jwebview) { + WebView* view = GET_NATIVE_VIEW(env, jwebview); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + return view->cursorWantsKeyEvents(); +} + +static void nativeHideCursor(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + view->hideCursor(); +} + +static void nativeInstrumentReport(JNIEnv *env, jobject obj) +{ +#ifdef ANDROID_INSTRUMENT + TimeCounter::reportNow(); +#endif +} + +static void nativeSelectBestAt(JNIEnv *env, jobject obj, jobject jrect) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + WebCore::IntRect rect = jrect_to_webrect(env, jrect); + view->selectBestAt(rect); +} + +static void nativeSelectAt(JNIEnv *env, jobject obj, jint x, jint y) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + WebCore::IntRect rect = IntRect(x, y , 1, 1); + view->selectBestAt(rect); + if (view->hasCursorNode()) + view->showCursorUntimed(); +} + +static jobject nativeLayerBounds(JNIEnv* env, jobject obj, jint jlayer) +{ + SkRect r; +#if USE(ACCELERATED_COMPOSITING) + LayerAndroid* layer = (LayerAndroid*) jlayer; + r = layer->bounds(); +#else + r.setEmpty(); +#endif + SkIRect irect; + r.round(&irect); + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, irect.fLeft, irect.fTop, + irect.fRight, irect.fBottom); + env->DeleteLocalRef(rectClass); + return rect; +} + +static jobject nativeSubtractLayers(JNIEnv* env, jobject obj, jobject jrect) +{ + SkIRect irect = jrect_to_webrect(env, jrect); +#if USE(ACCELERATED_COMPOSITING) + LayerAndroid* root = GET_NATIVE_VIEW(env, obj)->compositeRoot(); + if (root) { + SkRect rect; + rect.set(irect); + rect = root->subtractLayers(rect); + rect.round(&irect); + } +#endif + jclass rectClass = env->FindClass("android/graphics/Rect"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + jobject rect = env->NewObject(rectClass, init, irect.fLeft, irect.fTop, + irect.fRight, irect.fBottom); + env->DeleteLocalRef(rectClass); + return rect; +} + +static jint nativeTextGeneration(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + return root ? root->textGeneration() : 0; +} + +static bool nativePointInNavCache(JNIEnv *env, jobject obj, + int x, int y, int slop) +{ + return GET_NATIVE_VIEW(env, obj)->pointInNavCache(x, y, slop); +} + +static bool nativeMotionUp(JNIEnv *env, jobject obj, + int x, int y, int slop) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + return view->motionUp(x, y, slop); +} + +static bool nativeHasCursorNode(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->hasCursorNode(); +} + +static bool nativeHasFocusNode(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->hasFocusNode(); +} + +static bool nativeMoveCursor(JNIEnv *env, jobject obj, + int key, int count, bool ignoreScroll) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + DBG_NAV_LOGD("env=%p obj=%p view=%p", env, obj, view); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + return view->moveCursor(key, count, ignoreScroll); +} + +static void nativeRecordButtons(JNIEnv* env, jobject obj, bool hasFocus, + bool pressed, bool invalidate) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + view->nativeRecordButtons(hasFocus, pressed, invalidate); +} + +static void nativeSetFindIsUp(JNIEnv *env, jobject obj, jboolean isUp) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + view->setFindIsUp(isUp); +} + +static void nativeSetFindIsEmpty(JNIEnv *env, jobject obj) +{ + GET_NATIVE_VIEW(env, obj)->setFindIsEmpty(); +} + +static void nativeShowCursorTimed(JNIEnv *env, jobject obj) +{ + GET_NATIVE_VIEW(env, obj)->showCursorTimed(); +} + +static void nativeSetHeightCanMeasure(JNIEnv *env, jobject obj, bool measure) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in nativeSetHeightCanMeasure"); + view->setHeightCanMeasure(measure); +} + +static jobject nativeGetCursorRingBounds(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + jclass rectClass = env->FindClass("android/graphics/Rect"); + LOG_ASSERT(rectClass, "Could not find Rect class!"); + jmethodID init = env->GetMethodID(rectClass, "<init>", "(IIII)V"); + LOG_ASSERT(init, "Could not find constructor for Rect"); + WebCore::IntRect webRect; + view->cursorRingBounds(&webRect); + jobject rect = env->NewObject(rectClass, init, webRect.x(), + webRect.y(), webRect.right(), webRect.bottom()); + env->DeleteLocalRef(rectClass); + return rect; +} + +static int nativeFindAll(JNIEnv *env, jobject obj, jstring findLower, + jstring findUpper, jboolean sameAsLastSearch) +{ + // If one or the other is null, do not search. + if (!(findLower && findUpper)) + return 0; + // Obtain the characters for both the lower case string and the upper case + // string representing the same word. + const jchar* findLowerChars = env->GetStringChars(findLower, 0); + const jchar* findUpperChars = env->GetStringChars(findUpper, 0); + // If one or the other is null, do not search. + if (!(findLowerChars && findUpperChars)) { + if (findLowerChars) + env->ReleaseStringChars(findLower, findLowerChars); + if (findUpperChars) + env->ReleaseStringChars(findUpper, findUpperChars); + checkException(env); + return 0; + } + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in nativeFindAll"); + CachedRoot* root = view->getFrameCache(WebView::AllowNewer); + if (!root) { + env->ReleaseStringChars(findLower, findLowerChars); + env->ReleaseStringChars(findUpper, findUpperChars); + checkException(env); + return 0; + } + int length = env->GetStringLength(findLower); + // If the lengths of the strings do not match, then they are not the same + // word, so do not search. + if (!length || env->GetStringLength(findUpper) != length) { + env->ReleaseStringChars(findLower, findLowerChars); + env->ReleaseStringChars(findUpper, findUpperChars); + checkException(env); + return 0; + } + int width = root->documentWidth(); + int height = root->documentHeight(); + // Create a FindCanvas, which allows us to fake draw into it so we can + // figure out where our search string is rendered (and how many times). + FindCanvas canvas(width, height, (const UChar*) findLowerChars, + (const UChar*) findUpperChars, length << 1); + SkBitmap bitmap; + bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height); + canvas.setBitmapDevice(bitmap); + root->draw(canvas); + WTF::Vector<MatchInfo>* matches = canvas.detachMatches(); + // With setMatches, the WebView takes ownership of matches + view->setMatches(matches, sameAsLastSearch); + + env->ReleaseStringChars(findLower, findLowerChars); + env->ReleaseStringChars(findUpper, findUpperChars); + checkException(env); + return canvas.found(); +} + +static void nativeFindNext(JNIEnv *env, jobject obj, bool forward) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in nativeFindNext"); + view->findNext(forward); +} + +static int nativeFindIndex(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in nativeFindIndex"); + return view->currentMatchIndex(); +} + +static void nativeUpdateCachedTextfield(JNIEnv *env, jobject obj, jstring updatedText, jint generation) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in nativeUpdateCachedTextfield"); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return; + const CachedNode* cachedFocusNode = root->currentFocus(); + if (!cachedFocusNode || !cachedFocusNode->isTextInput()) + return; + WTF::String webcoreString = jstringToWtfString(env, updatedText); + (const_cast<CachedNode*>(cachedFocusNode))->setExport(webcoreString); + root->setTextGeneration(generation); + checkException(env); +} + +static jint nativeGetBlockLeftEdge(JNIEnv *env, jobject obj, jint x, jint y, + jfloat scale) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + if (!view) + return -1; + return view->getBlockLeftEdge(x, y, scale); +} + +static void nativeDestroy(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOGD("nativeDestroy view: %p", view); + LOG_ASSERT(view, "view not set in nativeDestroy"); + delete view; +} + +static void nativeStopGL(JNIEnv *env, jobject obj) +{ + GET_NATIVE_VIEW(env, obj)->stopGL(); +} + +static bool nativeMoveCursorToNextTextInput(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + CachedRoot* root = view->getFrameCache(WebView::DontAllowNewer); + if (!root) + return false; + const CachedNode* current = root->currentCursor(); + if (!current || !current->isTextInput()) + current = root->currentFocus(); + if (!current || !current->isTextInput()) + return false; + const CachedFrame* frame; + const CachedNode* next = root->nextTextField(current, &frame); + if (!next) + return false; + const WebCore::IntRect& bounds = next->bounds(frame); + root->rootHistory()->setMouseBounds(bounds); + view->getWebViewCore()->updateCursorBounds(root, frame, next); + view->showCursorUntimed(); + root->setCursor(const_cast<CachedFrame*>(frame), + const_cast<CachedNode*>(next)); + view->sendMoveFocus(static_cast<WebCore::Frame*>(frame->framePointer()), + static_cast<WebCore::Node*>(next->nodePointer())); + if (!next->isInLayer()) + view->scrollRectOnScreen(bounds); + view->getWebViewCore()->m_moveGeneration++; + return true; +} + +static int nativeMoveGeneration(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + if (!view) + return 0; + return view->moveGeneration(); +} + +static void nativeMoveSelection(JNIEnv *env, jobject obj, int x, int y) +{ + GET_NATIVE_VIEW(env, obj)->moveSelection(x, y); +} + +static void nativeResetSelection(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->resetSelection(); +} + +static jobject nativeSelectableText(JNIEnv* env, jobject obj) +{ + IntPoint pos = GET_NATIVE_VIEW(env, obj)->selectableText(); + jclass pointClass = env->FindClass("android/graphics/Point"); + jmethodID init = env->GetMethodID(pointClass, "<init>", "(II)V"); + jobject point = env->NewObject(pointClass, init, pos.x(), pos.y()); + env->DeleteLocalRef(pointClass); + return point; +} + +static void nativeSelectAll(JNIEnv* env, jobject obj) +{ + GET_NATIVE_VIEW(env, obj)->selectAll(); +} + +static void nativeSetExtendSelection(JNIEnv *env, jobject obj) +{ + GET_NATIVE_VIEW(env, obj)->setExtendSelection(); +} + +static jboolean nativeStartSelection(JNIEnv *env, jobject obj, int x, int y) +{ + return GET_NATIVE_VIEW(env, obj)->startSelection(x, y); +} + +static jboolean nativeWordSelection(JNIEnv *env, jobject obj, int x, int y) +{ + return GET_NATIVE_VIEW(env, obj)->wordSelection(x, y); +} + +static void nativeExtendSelection(JNIEnv *env, jobject obj, int x, int y) +{ + GET_NATIVE_VIEW(env, obj)->extendSelection(x, y); +} + +static jobject nativeGetSelection(JNIEnv *env, jobject obj) +{ + WebView* view = GET_NATIVE_VIEW(env, obj); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + String selection = view->getSelection(); + return wtfStringToJstring(env, selection); +} + +static jboolean nativeHitSelection(JNIEnv *env, jobject obj, int x, int y) +{ + return GET_NATIVE_VIEW(env, obj)->hitSelection(x, y); +} + +static jint nativeSelectionX(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->selectionX(); +} + +static jint nativeSelectionY(JNIEnv *env, jobject obj) +{ + return GET_NATIVE_VIEW(env, obj)->selectionY(); +} + +static void nativeSetSelectionPointer(JNIEnv *env, jobject obj, jboolean set, + jfloat scale, jint x, jint y) +{ + GET_NATIVE_VIEW(env, obj)->setSelectionPointer(set, scale, x, y); +} + +#ifdef ANDROID_DUMP_DISPLAY_TREE +static void dumpToFile(const char text[], void* file) { + fwrite(text, 1, strlen(text), reinterpret_cast<FILE*>(file)); + fwrite("\n", 1, 1, reinterpret_cast<FILE*>(file)); +} +#endif + +static void nativeDumpDisplayTree(JNIEnv* env, jobject jwebview, jstring jurl) +{ +#ifdef ANDROID_DUMP_DISPLAY_TREE + WebView* view = GET_NATIVE_VIEW(env, jwebview); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + + if (view && view->getWebViewCore()) { + FILE* file = fopen(DISPLAY_TREE_LOG_FILE, "w"); + if (file) { + SkFormatDumper dumper(dumpToFile, file); + // dump the URL + if (jurl) { + const char* str = env->GetStringUTFChars(jurl, 0); + SkDebugf("Dumping %s to %s\n", str, DISPLAY_TREE_LOG_FILE); + dumpToFile(str, file); + env->ReleaseStringUTFChars(jurl, str); + } + // now dump the display tree + SkDumpCanvas canvas(&dumper); + // this will playback the picture into the canvas, which will + // spew its contents to the dumper + view->draw(&canvas, 0, 0, false); + // we're done with the file now + fwrite("\n", 1, 1, file); + fclose(file); + } +#if USE(ACCELERATED_COMPOSITING) + const LayerAndroid* rootLayer = view->compositeRoot(); + if (rootLayer) { + FILE* file = fopen(LAYERS_TREE_LOG_FILE,"w"); + if (file) { + rootLayer->dumpLayers(file, 0); + fclose(file); + } + } +#endif + } +#endif +} + +static int nativeScrollableLayer(JNIEnv* env, jobject jwebview, jint x, jint y, + jobject rect, jobject bounds) +{ + WebView* view = GET_NATIVE_VIEW(env, jwebview); + LOG_ASSERT(view, "view not set in %s", __FUNCTION__); + SkIRect nativeRect, nativeBounds; + int id = view->scrollableLayer(x, y, &nativeRect, &nativeBounds); + if (rect) + GraphicsJNI::irect_to_jrect(nativeRect, env, rect); + if (bounds) + GraphicsJNI::irect_to_jrect(nativeBounds, env, bounds); + return id; +} + +static bool nativeScrollLayer(JNIEnv* env, jobject obj, jint layerId, jint x, + jint y) +{ +#if ENABLE(ANDROID_OVERFLOW_SCROLL) + WebView* view = GET_NATIVE_VIEW(env, obj); + LayerAndroid* root = view->compositeRoot(); + if (!root) + return false; + LayerAndroid* layer = root->findById(layerId); + if (!layer || !layer->contentIsScrollable()) + return false; + return static_cast<ScrollableLayerAndroid*>(layer)->scrollTo(x, y); +#endif + return false; +} + +static void nativeSetExpandedTileBounds(JNIEnv*, jobject, jboolean enabled) +{ + TilesManager::instance()->setExpandedTileBounds(enabled); +} + +/* + * JNI registration + */ +static JNINativeMethod gJavaWebViewMethods[] = { + { "nativeCacheHitFramePointer", "()I", + (void*) nativeCacheHitFramePointer }, + { "nativeCacheHitIsPlugin", "()Z", + (void*) nativeCacheHitIsPlugin }, + { "nativeCacheHitNodeBounds", "()Landroid/graphics/Rect;", + (void*) nativeCacheHitNodeBounds }, + { "nativeCacheHitNodePointer", "()I", + (void*) nativeCacheHitNodePointer }, + { "nativeClearCursor", "()V", + (void*) nativeClearCursor }, + { "nativeCreate", "(ILjava/lang/String;Landroid/content/res/AssetManager;)V", + (void*) nativeCreate }, + { "nativeCursorFramePointer", "()I", + (void*) nativeCursorFramePointer }, + { "nativePageShouldHandleShiftAndArrows", "()Z", + (void*) nativePageShouldHandleShiftAndArrows }, + { "nativeCursorNodeBounds", "()Landroid/graphics/Rect;", + (void*) nativeCursorNodeBounds }, + { "nativeCursorNodePointer", "()I", + (void*) nativeCursorNodePointer }, + { "nativeCursorIntersects", "(Landroid/graphics/Rect;)Z", + (void*) nativeCursorIntersects }, + { "nativeCursorIsAnchor", "()Z", + (void*) nativeCursorIsAnchor }, + { "nativeCursorIsTextInput", "()Z", + (void*) nativeCursorIsTextInput }, + { "nativeCursorPosition", "()Landroid/graphics/Point;", + (void*) nativeCursorPosition }, + { "nativeCursorText", "()Ljava/lang/String;", + (void*) nativeCursorText }, + { "nativeCursorWantsKeyEvents", "()Z", + (void*)nativeCursorWantsKeyEvents }, + { "nativeDebugDump", "()V", + (void*) nativeDebugDump }, + { "nativeDestroy", "()V", + (void*) nativeDestroy }, + { "nativeDraw", "(Landroid/graphics/Canvas;IIZ)I", + (void*) nativeDraw }, + { "nativeGetDrawGLFunction", "(Landroid/graphics/Rect;Landroid/graphics/Rect;FI)I", + (void*) nativeGetDrawGLFunction }, + { "nativeUpdateDrawGLFunction", "(Landroid/graphics/Rect;Landroid/graphics/Rect;)V", + (void*) nativeUpdateDrawGLFunction }, + { "nativeDumpDisplayTree", "(Ljava/lang/String;)V", + (void*) nativeDumpDisplayTree }, + { "nativeEvaluateLayersAnimations", "()Z", + (void*) nativeEvaluateLayersAnimations }, + { "nativeExtendSelection", "(II)V", + (void*) nativeExtendSelection }, + { "nativeFindAll", "(Ljava/lang/String;Ljava/lang/String;Z)I", + (void*) nativeFindAll }, + { "nativeFindNext", "(Z)V", + (void*) nativeFindNext }, + { "nativeFindIndex", "()I", + (void*) nativeFindIndex}, + { "nativeFocusCandidateFramePointer", "()I", + (void*) nativeFocusCandidateFramePointer }, + { "nativeFocusCandidateHasNextTextfield", "()Z", + (void*) focusCandidateHasNextTextfield }, + { "nativeFocusCandidateIsPassword", "()Z", + (void*) nativeFocusCandidateIsPassword }, + { "nativeFocusCandidateIsRtlText", "()Z", + (void*) nativeFocusCandidateIsRtlText }, + { "nativeFocusCandidateIsTextInput", "()Z", + (void*) nativeFocusCandidateIsTextInput }, + { "nativeFocusCandidateLineHeight", "()I", + (void*) nativeFocusCandidateLineHeight }, + { "nativeFocusCandidateMaxLength", "()I", + (void*) nativeFocusCandidateMaxLength }, + { "nativeFocusCandidateIsAutoComplete", "()Z", + (void*) nativeFocusCandidateIsAutoComplete }, + { "nativeFocusCandidateName", "()Ljava/lang/String;", + (void*) nativeFocusCandidateName }, + { "nativeFocusCandidateNodeBounds", "()Landroid/graphics/Rect;", + (void*) nativeFocusCandidateNodeBounds }, + { "nativeFocusCandidatePaddingRect", "()Landroid/graphics/Rect;", + (void*) nativeFocusCandidatePaddingRect }, + { "nativeFocusCandidatePointer", "()I", + (void*) nativeFocusCandidatePointer }, + { "nativeFocusCandidateText", "()Ljava/lang/String;", + (void*) nativeFocusCandidateText }, + { "nativeFocusCandidateTextSize", "()F", + (void*) nativeFocusCandidateTextSize }, + { "nativeFocusCandidateType", "()I", + (void*) nativeFocusCandidateType }, + { "nativeFocusIsPlugin", "()Z", + (void*) nativeFocusIsPlugin }, + { "nativeFocusNodeBounds", "()Landroid/graphics/Rect;", + (void*) nativeFocusNodeBounds }, + { "nativeFocusNodePointer", "()I", + (void*) nativeFocusNodePointer }, + { "nativeGetCursorRingBounds", "()Landroid/graphics/Rect;", + (void*) nativeGetCursorRingBounds }, + { "nativeGetSelection", "()Ljava/lang/String;", + (void*) nativeGetSelection }, + { "nativeHasCursorNode", "()Z", + (void*) nativeHasCursorNode }, + { "nativeHasFocusNode", "()Z", + (void*) nativeHasFocusNode }, + { "nativeHideCursor", "()V", + (void*) nativeHideCursor }, + { "nativeHitSelection", "(II)Z", + (void*) nativeHitSelection }, + { "nativeImageURI", "(II)Ljava/lang/String;", + (void*) nativeImageURI }, + { "nativeInstrumentReport", "()V", + (void*) nativeInstrumentReport }, + { "nativeLayerBounds", "(I)Landroid/graphics/Rect;", + (void*) nativeLayerBounds }, + { "nativeMotionUp", "(III)Z", + (void*) nativeMotionUp }, + { "nativeMoveCursor", "(IIZ)Z", + (void*) nativeMoveCursor }, + { "nativeMoveCursorToNextTextInput", "()Z", + (void*) nativeMoveCursorToNextTextInput }, + { "nativeMoveGeneration", "()I", + (void*) nativeMoveGeneration }, + { "nativeMoveSelection", "(II)V", + (void*) nativeMoveSelection }, + { "nativePointInNavCache", "(III)Z", + (void*) nativePointInNavCache }, + { "nativeRecordButtons", "(ZZZ)V", + (void*) nativeRecordButtons }, + { "nativeResetSelection", "()V", + (void*) nativeResetSelection }, + { "nativeSelectableText", "()Landroid/graphics/Point;", + (void*) nativeSelectableText }, + { "nativeSelectAll", "()V", + (void*) nativeSelectAll }, + { "nativeSelectBestAt", "(Landroid/graphics/Rect;)V", + (void*) nativeSelectBestAt }, + { "nativeSelectAt", "(II)V", + (void*) nativeSelectAt }, + { "nativeSelectionX", "()I", + (void*) nativeSelectionX }, + { "nativeSelectionY", "()I", + (void*) nativeSelectionY }, + { "nativeSetExtendSelection", "()V", + (void*) nativeSetExtendSelection }, + { "nativeSetFindIsEmpty", "()V", + (void*) nativeSetFindIsEmpty }, + { "nativeSetFindIsUp", "(Z)V", + (void*) nativeSetFindIsUp }, + { "nativeSetHeightCanMeasure", "(Z)V", + (void*) nativeSetHeightCanMeasure }, + { "nativeSetBaseLayer", "(ILandroid/graphics/Region;ZZ)V", + (void*) nativeSetBaseLayer }, + { "nativeReplaceBaseContent", "(I)V", + (void*) nativeReplaceBaseContent }, + { "nativeCopyBaseContentToPicture", "(Landroid/graphics/Picture;)V", + (void*) nativeCopyBaseContentToPicture }, + { "nativeHasContent", "()Z", + (void*) nativeHasContent }, + { "nativeSetSelectionPointer", "(ZFII)V", + (void*) nativeSetSelectionPointer }, + { "nativeShowCursorTimed", "()V", + (void*) nativeShowCursorTimed }, + { "nativeStartSelection", "(II)Z", + (void*) nativeStartSelection }, + { "nativeStopGL", "()V", + (void*) nativeStopGL }, + { "nativeSubtractLayers", "(Landroid/graphics/Rect;)Landroid/graphics/Rect;", + (void*) nativeSubtractLayers }, + { "nativeTextGeneration", "()I", + (void*) nativeTextGeneration }, + { "nativeUpdateCachedTextfield", "(Ljava/lang/String;I)V", + (void*) nativeUpdateCachedTextfield }, + { "nativeWordSelection", "(II)Z", + (void*) nativeWordSelection }, + { "nativeGetBlockLeftEdge", "(IIF)I", + (void*) nativeGetBlockLeftEdge }, + { "nativeScrollableLayer", "(IILandroid/graphics/Rect;Landroid/graphics/Rect;)I", + (void*) nativeScrollableLayer }, + { "nativeScrollLayer", "(III)Z", + (void*) nativeScrollLayer }, + { "nativeSetExpandedTileBounds", "(Z)V", + (void*) nativeSetExpandedTileBounds }, +}; + +int registerWebView(JNIEnv* env) +{ + jclass clazz = env->FindClass("android/webkit/WebView"); + LOG_ASSERT(clazz, "Unable to find class android/webkit/WebView"); + gWebViewField = env->GetFieldID(clazz, "mNativeClass", "I"); + LOG_ASSERT(gWebViewField, "Unable to find android/webkit/WebView.mNativeClass"); + env->DeleteLocalRef(clazz); + + return jniRegisterNativeMethods(env, "android/webkit/WebView", gJavaWebViewMethods, NELEM(gJavaWebViewMethods)); +} + +} // namespace android |