From 648161bb0edfc3d43db63caed5cc5213bc6cb78f Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 18:28:41 -0800 Subject: auto import from //depot/cupcake/@135843 --- WebCore/rendering/RenderObject.cpp | 3212 ------------------------------------ 1 file changed, 3212 deletions(-) delete mode 100644 WebCore/rendering/RenderObject.cpp (limited to 'WebCore/rendering/RenderObject.cpp') diff --git a/WebCore/rendering/RenderObject.cpp b/WebCore/rendering/RenderObject.cpp deleted file mode 100644 index 56fb7df..0000000 --- a/WebCore/rendering/RenderObject.cpp +++ /dev/null @@ -1,3212 +0,0 @@ -/* - * Copyright (C) 1999 Lars Knoll (knoll@kde.org) - * (C) 1999 Antti Koivisto (koivisto@kde.org) - * (C) 2000 Dirk Mueller (mueller@kde.org) - * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com) - * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#include "config.h" -#include "RenderObject.h" - -#include "AXObjectCache.h" -#include "AffineTransform.h" -#include "AnimationController.h" -#include "CSSStyleSelector.h" -#include "CachedImage.h" -#include "Chrome.h" -#include "Document.h" -#include "Element.h" -#include "EventHandler.h" -#include "FloatRect.h" -#include "Frame.h" -#include "FrameView.h" -#include "GraphicsContext.h" -#include "HTMLNames.h" -#include "HTMLOListElement.h" -#include "HitTestRequest.h" -#include "HitTestResult.h" -#include "KURL.h" -#include "Page.h" -#include "PlatformScreen.h" -#include "Position.h" -#include "RenderArena.h" -#include "RenderCounter.h" -#include "RenderFlexibleBox.h" -#include "RenderImageGeneratedContent.h" -#include "RenderInline.h" -#include "RenderListItem.h" -#include "RenderTableCell.h" -#include "RenderTableCol.h" -#include "RenderTableRow.h" -#include "RenderText.h" -#include "RenderTheme.h" -#include "RenderView.h" -#include "SelectionController.h" -#include "TextResourceDecoder.h" -#include -#ifdef ANDROID_LAYOUT -#include "Settings.h" -#endif -#include -#include - -using namespace std; - -namespace WebCore { - -using namespace HTMLNames; - -#ifndef NDEBUG -static void* baseOfRenderObjectBeingDeleted; -#endif - -bool RenderObject::s_affectsParentBlock = false; - -void* RenderObject::operator new(size_t sz, RenderArena* renderArena) throw() -{ - return renderArena->allocate(sz); -} - -void RenderObject::operator delete(void* ptr, size_t sz) -{ - ASSERT(baseOfRenderObjectBeingDeleted == ptr); - - // Stash size where destroy can find it. - *(size_t *)ptr = sz; -} - -RenderObject* RenderObject::createObject(Node* node, RenderStyle* style) -{ - Document* doc = node->document(); - RenderArena* arena = doc->renderArena(); - - // Minimal support for content properties replacing an entire element. - // Works only if we have exactly one piece of content and it's a URL. - // Otherwise acts as if we didn't support this feature. - const ContentData* contentData = style->contentData(); - if (contentData && !contentData->m_next && contentData->m_type == CONTENT_OBJECT && doc != node) { - RenderImageGeneratedContent* image = new (arena) RenderImageGeneratedContent(node); - image->setStyle(style); - if (StyleImage* styleImage = contentData->m_content.m_image) - image->setStyleImage(styleImage); - return image; - } - - RenderObject* o = 0; - - switch (style->display()) { - case NONE: - break; - case INLINE: - o = new (arena) RenderInline(node); - break; - case BLOCK: - o = new (arena) RenderBlock(node); - break; - case INLINE_BLOCK: - o = new (arena) RenderBlock(node); - break; - case LIST_ITEM: - o = new (arena) RenderListItem(node); - break; - case RUN_IN: - case COMPACT: - o = new (arena) RenderBlock(node); - break; - case TABLE: - case INLINE_TABLE: - o = new (arena) RenderTable(node); - break; - case TABLE_ROW_GROUP: - case TABLE_HEADER_GROUP: - case TABLE_FOOTER_GROUP: - o = new (arena) RenderTableSection(node); - break; - case TABLE_ROW: - o = new (arena) RenderTableRow(node); - break; - case TABLE_COLUMN_GROUP: - case TABLE_COLUMN: - o = new (arena) RenderTableCol(node); - break; - case TABLE_CELL: - o = new (arena) RenderTableCell(node); - break; - case TABLE_CAPTION: - o = new (arena) RenderBlock(node); - break; - case BOX: - case INLINE_BOX: - o = new (arena) RenderFlexibleBox(node); - break; - } - - return o; -} - -#ifndef NDEBUG -static WTF::RefCountedLeakCounter renderObjectCounter("RenderObject"); -#endif - -RenderObject::RenderObject(Node* node) - : CachedResourceClient() - , m_style(0) - , m_node(node) - , m_parent(0) - , m_previous(0) - , m_next(0) -#ifndef NDEBUG - , m_hasAXObject(false) -#endif - , m_verticalPosition(PositionUndefined) - , m_needsLayout(false) - , m_needsPositionedMovementLayout(false) - , m_normalChildNeedsLayout(false) - , m_posChildNeedsLayout(false) - , m_prefWidthsDirty(false) - , m_floating(false) - , m_positioned(false) - , m_relPositioned(false) - , m_paintBackground(false) - , m_isAnonymous(node == node->document()) - , m_isText(false) - , m_inline(true) - , m_replaced(false) - , m_isDragging(false) - , m_hasLayer(false) - , m_hasOverflowClip(false) - , m_hasTransform(false) - , m_hasReflection(false) - , m_hasOverrideSize(false) - , m_hasCounterNodeMap(false) - , m_everHadLayout(false) -{ -#ifndef NDEBUG - renderObjectCounter.increment(); -#endif -} - -RenderObject::~RenderObject() -{ - ASSERT(!node() || documentBeingDestroyed() || !document()->frame()->view() || document()->frame()->view()->layoutRoot() != this); -#ifndef NDEBUG - ASSERT(!m_hasAXObject); - renderObjectCounter.decrement(); -#endif -} - -bool RenderObject::isDescendantOf(const RenderObject* obj) const -{ - for (const RenderObject* r = this; r; r = r->m_parent) { - if (r == obj) - return true; - } - return false; -} - -bool RenderObject::isBody() const -{ - return node()->hasTagName(bodyTag); -} - -bool RenderObject::isHR() const -{ - return element() && element()->hasTagName(hrTag); -} - -bool RenderObject::isHTMLMarquee() const -{ - return element() && element()->renderer() == this && element()->hasTagName(marqueeTag); -} - -bool RenderObject::canHaveChildren() const -{ - return false; -} - -RenderFlow* RenderObject::continuation() const -{ - return 0; -} - -bool RenderObject::isInlineContinuation() const -{ - return false; -} - -void RenderObject::addChild(RenderObject*, RenderObject*) -{ - ASSERT_NOT_REACHED(); -} - -RenderObject* RenderObject::removeChildNode(RenderObject*, bool) -{ - ASSERT_NOT_REACHED(); - return 0; -} - -void RenderObject::removeChild(RenderObject*) -{ - ASSERT_NOT_REACHED(); -} - -void RenderObject::moveChildNode(RenderObject*) -{ - ASSERT_NOT_REACHED(); -} - -void RenderObject::appendChildNode(RenderObject*, bool) -{ - ASSERT_NOT_REACHED(); -} - -void RenderObject::insertChildNode(RenderObject*, RenderObject*, bool) -{ - ASSERT_NOT_REACHED(); -} - -RenderObject* RenderObject::nextInPreOrder() const -{ - if (RenderObject* o = firstChild()) - return o; - - return nextInPreOrderAfterChildren(); -} - -RenderObject* RenderObject::nextInPreOrderAfterChildren() const -{ - RenderObject* o; - if (!(o = nextSibling())) { - o = parent(); - while (o && !o->nextSibling()) - o = o->parent(); - if (o) - o = o->nextSibling(); - } - - return o; -} - -RenderObject* RenderObject::nextInPreOrder(RenderObject* stayWithin) const -{ - if (RenderObject* o = firstChild()) - return o; - - return nextInPreOrderAfterChildren(stayWithin); -} - -RenderObject* RenderObject::nextInPreOrderAfterChildren(RenderObject* stayWithin) const -{ - if (this == stayWithin) - return 0; - - RenderObject* o; - if (!(o = nextSibling())) { - o = parent(); - while (o && !o->nextSibling()) { - o = o->parent(); - if (o == stayWithin) - return 0; - } - if (o) - o = o->nextSibling(); - } - - return o; -} - -RenderObject* RenderObject::previousInPreOrder() const -{ - if (RenderObject* o = previousSibling()) { - while (o->lastChild()) - o = o->lastChild(); - return o; - } - - return parent(); -} - -RenderObject* RenderObject::childAt(unsigned index) const -{ - RenderObject* child = firstChild(); - for (unsigned i = 0; child && i < index; i++) - child = child->nextSibling(); - return child; -} - -bool RenderObject::isEditable() const -{ - RenderText* textRenderer = 0; - if (isText()) - textRenderer = static_cast(const_cast(this)); - - return style()->visibility() == VISIBLE && - element() && element()->isContentEditable() && - ((isBlockFlow() && !firstChild()) || - isReplaced() || - isBR() || - (textRenderer && textRenderer->firstTextBox())); -} - -RenderObject* RenderObject::firstLeafChild() const -{ - RenderObject* r = firstChild(); - while (r) { - RenderObject* n = 0; - n = r->firstChild(); - if (!n) - break; - r = n; - } - return r; -} - -RenderObject* RenderObject::lastLeafChild() const -{ - RenderObject* r = lastChild(); - while (r) { - RenderObject* n = 0; - n = r->lastChild(); - if (!n) - break; - r = n; - } - return r; -} - -static void addLayers(RenderObject* obj, RenderLayer* parentLayer, RenderObject*& newObject, - RenderLayer*& beforeChild) -{ - if (obj->hasLayer()) { - if (!beforeChild && newObject) { - // We need to figure out the layer that follows newObject. We only do - // this the first time we find a child layer, and then we update the - // pointer values for newObject and beforeChild used by everyone else. - beforeChild = newObject->parent()->findNextLayer(parentLayer, newObject); - newObject = 0; - } - parentLayer->addChild(obj->layer(), beforeChild); - return; - } - - for (RenderObject* curr = obj->firstChild(); curr; curr = curr->nextSibling()) - addLayers(curr, parentLayer, newObject, beforeChild); -} - -void RenderObject::addLayers(RenderLayer* parentLayer, RenderObject* newObject) -{ - if (!parentLayer) - return; - - RenderObject* object = newObject; - RenderLayer* beforeChild = 0; - WebCore::addLayers(this, parentLayer, object, beforeChild); -} - -void RenderObject::removeLayers(RenderLayer* parentLayer) -{ - if (!parentLayer) - return; - - if (hasLayer()) { - parentLayer->removeChild(layer()); - return; - } - - for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) - curr->removeLayers(parentLayer); -} - -void RenderObject::moveLayers(RenderLayer* oldParent, RenderLayer* newParent) -{ - if (!newParent) - return; - - if (hasLayer()) { - if (oldParent) - oldParent->removeChild(layer()); - newParent->addChild(layer()); - return; - } - - for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) - curr->moveLayers(oldParent, newParent); -} - -RenderLayer* RenderObject::findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint, - bool checkParent) -{ - // Error check the parent layer passed in. If it's null, we can't find anything. - if (!parentLayer) - return 0; - - // Step 1: If our layer is a child of the desired parent, then return our layer. - RenderLayer* ourLayer = layer(); - if (ourLayer && ourLayer->parent() == parentLayer) - return ourLayer; - - // Step 2: If we don't have a layer, or our layer is the desired parent, then descend - // into our siblings trying to find the next layer whose parent is the desired parent. - if (!ourLayer || ourLayer == parentLayer) { - for (RenderObject* curr = startPoint ? startPoint->nextSibling() : firstChild(); - curr; curr = curr->nextSibling()) { - RenderLayer* nextLayer = curr->findNextLayer(parentLayer, 0, false); - if (nextLayer) - return nextLayer; - } - } - - // Step 3: If our layer is the desired parent layer, then we're finished. We didn't - // find anything. - if (parentLayer == ourLayer) - return 0; - - // Step 4: If |checkParent| is set, climb up to our parent and check its siblings that - // follow us to see if we can locate a layer. - if (checkParent && parent()) - return parent()->findNextLayer(parentLayer, this, true); - - return 0; -} - -RenderLayer* RenderObject::enclosingLayer() const -{ - const RenderObject* curr = this; - while (curr) { - RenderLayer* layer = curr->layer(); - if (layer) - return layer; - curr = curr->parent(); - } - return 0; -} - -bool RenderObject::requiresLayer() -{ - return isRoot() || isPositioned() || isRelPositioned() || isTransparent() || hasOverflowClip() || hasTransform() || hasMask() || hasReflection(); -} - -RenderBlock* RenderObject::firstLineBlock() const -{ - return 0; -} - -int RenderObject::offsetLeft() const -{ - RenderObject* offsetPar = offsetParent(); - if (!offsetPar) - return 0; - int x = xPos() - offsetPar->borderLeft(); - if (!isPositioned()) { - if (isRelPositioned()) - x += static_cast(this)->relativePositionOffsetX(); - RenderObject* curr = parent(); - while (curr && curr != offsetPar) { - x += curr->xPos(); - curr = curr->parent(); - } - if (offsetPar->isBody() && !offsetPar->isRelPositioned() && !offsetPar->isPositioned()) - x += offsetPar->xPos(); - } - return x; -} - -int RenderObject::offsetTop() const -{ - RenderObject* offsetPar = offsetParent(); - if (!offsetPar) - return 0; -#ifdef ANDROID_FIX - // This is to fix https://bugs.webkit.org/show_bug.cgi?id=23178. - int y = yPos() - borderTopExtra() + offsetPar->borderTopExtra() - offsetPar->borderTop(); -#else - int y = yPos() - borderTopExtra() - offsetPar->borderTop(); -#endif - if (!isPositioned()) { - if (isRelPositioned()) - y += static_cast(this)->relativePositionOffsetY(); - RenderObject* curr = parent(); - while (curr && curr != offsetPar) { - if (!curr->isTableRow()) - y += curr->yPos(); - curr = curr->parent(); - } - if (offsetPar->isBody() && !offsetPar->isRelPositioned() && !offsetPar->isPositioned()) - y += offsetPar->yPos(); - } - return y; -} - -RenderObject* RenderObject::offsetParent() const -{ - // FIXME: It feels like this function could almost be written using containing blocks. - if (isBody()) - return 0; - - bool skipTables = isPositioned() || isRelPositioned(); - float currZoom = style()->effectiveZoom(); - RenderObject* curr = parent(); - while (curr && (!curr->element() || - (!curr->isPositioned() && !curr->isRelPositioned() && !curr->isBody()))) { - if (!skipTables && curr->element() && (curr->element()->hasTagName(tableTag) || - curr->element()->hasTagName(tdTag) || curr->element()->hasTagName(thTag))) - break; - float newZoom = curr->style()->effectiveZoom(); - if (currZoom != newZoom) - break; - currZoom = newZoom; - curr = curr->parent(); - } - return curr; -} - -int RenderObject::verticalScrollbarWidth() const -{ - return includeVerticalScrollbarSize() ? layer()->verticalScrollbarWidth() : 0; -} - -int RenderObject::horizontalScrollbarHeight() const -{ - return includeHorizontalScrollbarSize() ? layer()->horizontalScrollbarHeight() : 0; -} - -// More IE extensions. clientWidth and clientHeight represent the interior of an object -// excluding border and scrollbar. -int RenderObject::clientWidth() const -{ - return width() - borderLeft() - borderRight() - verticalScrollbarWidth(); -} - -int RenderObject::clientHeight() const -{ - return height() - borderTop() - borderBottom() - horizontalScrollbarHeight(); -} - -// scrollWidth/scrollHeight will be the same as clientWidth/clientHeight unless the -// object has overflow:hidden/scroll/auto specified and also has overflow. -int RenderObject::scrollWidth() const -{ - return hasOverflowClip() ? layer()->scrollWidth() : overflowWidth(); -} - -int RenderObject::scrollHeight() const -{ - return hasOverflowClip() ? layer()->scrollHeight() : overflowHeight(); -} - -int RenderObject::scrollLeft() const -{ - return hasOverflowClip() ? layer()->scrollXOffset() : 0; -} - -int RenderObject::scrollTop() const -{ - return hasOverflowClip() ? layer()->scrollYOffset() : 0; -} - -void RenderObject::setScrollLeft(int newLeft) -{ - if (hasOverflowClip()) - layer()->scrollToXOffset(newLeft); -} - -void RenderObject::setScrollTop(int newTop) -{ - if (hasOverflowClip()) - layer()->scrollToYOffset(newTop); -} - -bool RenderObject::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier) -{ - RenderLayer* l = layer(); - if (l && l->scroll(direction, granularity, multiplier)) - return true; - RenderBlock* b = containingBlock(); - if (b && !b->isRenderView()) - return b->scroll(direction, granularity, multiplier); - return false; -} - -bool RenderObject::canBeProgramaticallyScrolled(bool scrollToAnchor) const -{ - if (!layer()) - return false; - - return (hasOverflowClip() && (scrollsOverflow() || (node() && node()->isContentEditable()))) || (node() && node()->isDocumentNode()); -} - -void RenderObject::autoscroll() -{ - layer()->autoscroll(); -} - -void RenderObject::panScroll(const IntPoint& source) -{ - layer()->panScrollFromPoint(source); -} - -bool RenderObject::hasStaticX() const -{ - return (style()->left().isAuto() && style()->right().isAuto()) || style()->left().isStatic() || style()->right().isStatic(); -} - -bool RenderObject::hasStaticY() const -{ - return (style()->top().isAuto() && style()->bottom().isAuto()) || style()->top().isStatic(); -} - -void RenderObject::markAllDescendantsWithFloatsForLayout(RenderObject*) -{ -} - -void RenderObject::setPrefWidthsDirty(bool b, bool markParents) -{ - bool alreadyDirty = m_prefWidthsDirty; - m_prefWidthsDirty = b; - if (b && !alreadyDirty && markParents && (isText() || (style()->position() != FixedPosition && style()->position() != AbsolutePosition))) - invalidateContainerPrefWidths(); -} - -void RenderObject::invalidateContainerPrefWidths() -{ - // In order to avoid pathological behavior when inlines are deeply nested, we do include them - // in the chain that we mark dirty (even though they're kind of irrelevant). - RenderObject* o = isTableCell() ? containingBlock() : container(); - while (o && !o->m_prefWidthsDirty) { - o->m_prefWidthsDirty = true; - if (o->style()->position() == FixedPosition || o->style()->position() == AbsolutePosition) - // A positioned object has no effect on the min/max width of its containing block ever. - // We can optimize this case and not go up any further. - break; - o = o->isTableCell() ? o->containingBlock() : o->container(); - } -} - -void RenderObject::setNeedsLayout(bool b, bool markParents) -{ - bool alreadyNeededLayout = m_needsLayout; - m_needsLayout = b; - if (b) { - if (!alreadyNeededLayout) { - if (markParents) - markContainingBlocksForLayout(); - if (hasLayer()) - layer()->setNeedsFullRepaint(); - } - } else { - m_everHadLayout = true; - m_posChildNeedsLayout = false; - m_normalChildNeedsLayout = false; - m_needsPositionedMovementLayout = false; - } -} - -void RenderObject::setChildNeedsLayout(bool b, bool markParents) -{ - bool alreadyNeededLayout = m_normalChildNeedsLayout; - m_normalChildNeedsLayout = b; - if (b) { - if (!alreadyNeededLayout && markParents) - markContainingBlocksForLayout(); - } else { - m_posChildNeedsLayout = false; - m_normalChildNeedsLayout = false; - m_needsPositionedMovementLayout = false; - } -} - -void RenderObject::setNeedsPositionedMovementLayout() -{ - bool alreadyNeededLayout = needsLayout(); - m_needsPositionedMovementLayout = true; - if (!alreadyNeededLayout) { - markContainingBlocksForLayout(); - if (hasLayer()) - layer()->setNeedsFullRepaint(); - } -} - -static inline bool objectIsRelayoutBoundary(const RenderObject *obj) -{ - // FIXME: In future it may be possible to broaden this condition in order to improve performance. - // Table cells are excluded because even when their CSS height is fixed, their height() - // may depend on their contents. - return obj->isTextField() || obj->isTextArea() - || obj->hasOverflowClip() && !obj->style()->width().isIntrinsicOrAuto() && !obj->style()->height().isIntrinsicOrAuto() && !obj->style()->height().isPercent() && !obj->isTableCell() -#if ENABLE(SVG) - || obj->isSVGRoot() -#endif - ; -} - -void RenderObject::markContainingBlocksForLayout(bool scheduleRelayout, RenderObject* newRoot) -{ - ASSERT(!scheduleRelayout || !newRoot); - - RenderObject* o = container(); - RenderObject* last = this; - - while (o) { - if (!last->isText() && (last->style()->position() == FixedPosition || last->style()->position() == AbsolutePosition)) { - if (last->hasStaticY()) { - RenderObject* parent = last->parent(); - if (!parent->normalChildNeedsLayout()) { - parent->setChildNeedsLayout(true, false); - if (parent != newRoot) - parent->markContainingBlocksForLayout(scheduleRelayout, newRoot); - } - } - if (o->m_posChildNeedsLayout) - return; - o->m_posChildNeedsLayout = true; - } else { - if (o->m_normalChildNeedsLayout) - return; - o->m_normalChildNeedsLayout = true; - } - - if (o == newRoot) - return; - - last = o; - if (scheduleRelayout && objectIsRelayoutBoundary(last)) - break; - o = o->container(); - } - - if (scheduleRelayout) - last->scheduleRelayout(); -} - -RenderBlock* RenderObject::containingBlock() const -{ - if (isTableCell()) { - const RenderTableCell* cell = static_cast(this); - if (parent() && cell->section()) - return cell->table(); - return 0; - } - - if (isRenderView()) - return const_cast(static_cast(this)); - - RenderObject* o = parent(); - if (!isText() && m_style->position() == FixedPosition) { - while (o && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) - o = o->parent(); - } else if (!isText() && m_style->position() == AbsolutePosition) { - while (o && (o->style()->position() == StaticPosition || (o->isInline() && !o->isReplaced())) && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) { - // For relpositioned inlines, we return the nearest enclosing block. We don't try - // to return the inline itself. This allows us to avoid having a positioned objects - // list in all RenderInlines and lets us return a strongly-typed RenderBlock* result - // from this method. The container() method can actually be used to obtain the - // inline directly. - if (o->style()->position() == RelativePosition && o->isInline() && !o->isReplaced()) - return o->containingBlock(); - o = o->parent(); - } - } else { - while (o && ((o->isInline() && !o->isReplaced()) || o->isTableRow() || o->isTableSection() - || o->isTableCol() || o->isFrameSet() || o->isMedia() -#if ENABLE(SVG) - || o->isSVGContainer() || o->isSVGRoot() -#endif - )) - o = o->parent(); - } - - if (!o || !o->isRenderBlock()) - return 0; // Probably doesn't happen any more, but leave just in case. -dwh - - return static_cast(o); -} - -int RenderObject::containingBlockWidth() const -{ - // FIXME ? - return containingBlock()->availableWidth(); -} - -int RenderObject::containingBlockHeight() const -{ - // FIXME ? - return containingBlock()->contentHeight(); -} - -static bool mustRepaintFillLayers(const RenderObject* renderer, const FillLayer* layer) -{ - // Nobody will use multiple layers without wanting fancy positioning. - if (layer->next()) - return true; - - // Make sure we have a valid image. - StyleImage* img = layer->image(); - bool shouldPaintBackgroundImage = img && img->canRender(renderer->style()->effectiveZoom()); - - // These are always percents or auto. - if (shouldPaintBackgroundImage && - (!layer->xPosition().isZero() || !layer->yPosition().isZero() || - layer->size().width().isPercent() || layer->size().height().isPercent())) - // The image will shift unpredictably if the size changes. - return true; - - return false; -} - -bool RenderObject::mustRepaintBackgroundOrBorder() const -{ - if (hasMask() && mustRepaintFillLayers(this, style()->maskLayers())) - return true; - - // If we don't have a background/border/mask, then nothing to do. - if (!hasBoxDecorations()) - return false; - - if (mustRepaintFillLayers(this, style()->backgroundLayers())) - return true; - - // Our fill layers are ok. Let's check border. - if (style()->hasBorder()) { - // Border images are not ok. - StyleImage* borderImage = style()->borderImage().image(); - bool shouldPaintBorderImage = borderImage && borderImage->canRender(style()->effectiveZoom()); - - // If the image hasn't loaded, we're still using the normal border style. - if (shouldPaintBorderImage && borderImage->isLoaded()) - return true; - } - - return false; -} - -void RenderObject::drawBorderArc(GraphicsContext* graphicsContext, int x, int y, float thickness, IntSize radius, - int angleStart, int angleSpan, BorderSide s, Color c, const Color& textColor, - EBorderStyle style, bool firstCorner) -{ - if ((style == DOUBLE && thickness / 2 < 3) || ((style == RIDGE || style == GROOVE) && thickness / 2 < 2)) - style = SOLID; - - if (!c.isValid()) { - if (style == INSET || style == OUTSET || style == RIDGE || style == GROOVE) - c.setRGB(238, 238, 238); - else - c = textColor; - } - - switch (style) { - case BNONE: - case BHIDDEN: - return; - case DOTTED: - case DASHED: - graphicsContext->setStrokeColor(c); - graphicsContext->setStrokeStyle(style == DOTTED ? DottedStroke : DashedStroke); - graphicsContext->setStrokeThickness(thickness); - graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); - break; - case DOUBLE: { - float third = thickness / 3.0f; - float innerThird = (thickness + 1.0f) / 6.0f; - int shiftForInner = static_cast(innerThird * 2.5f); - - int outerY = y; - int outerHeight = radius.height() * 2; - int innerX = x + shiftForInner; - int innerY = y + shiftForInner; - int innerWidth = (radius.width() - shiftForInner) * 2; - int innerHeight = (radius.height() - shiftForInner) * 2; - if (innerThird > 1 && (s == BSTop || (firstCorner && (s == BSLeft || s == BSRight)))) { - outerHeight += 2; - innerHeight += 2; - } - - graphicsContext->setStrokeStyle(SolidStroke); - graphicsContext->setStrokeColor(c); - graphicsContext->setStrokeThickness(third); - graphicsContext->strokeArc(IntRect(x, outerY, radius.width() * 2, outerHeight), angleStart, angleSpan); - graphicsContext->setStrokeThickness(innerThird > 2 ? innerThird - 1 : innerThird); - graphicsContext->strokeArc(IntRect(innerX, innerY, innerWidth, innerHeight), angleStart, angleSpan); - break; - } - case GROOVE: - case RIDGE: { - Color c2; - if ((style == RIDGE && (s == BSTop || s == BSLeft)) || - (style == GROOVE && (s == BSBottom || s == BSRight))) - c2 = c.dark(); - else { - c2 = c; - c = c.dark(); - } - - graphicsContext->setStrokeStyle(SolidStroke); - graphicsContext->setStrokeColor(c); - graphicsContext->setStrokeThickness(thickness); - graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); - - float halfThickness = (thickness + 1.0f) / 4.0f; - int shiftForInner = static_cast(halfThickness * 1.5f); - graphicsContext->setStrokeColor(c2); - graphicsContext->setStrokeThickness(halfThickness > 2 ? halfThickness - 1 : halfThickness); - graphicsContext->strokeArc(IntRect(x + shiftForInner, y + shiftForInner, (radius.width() - shiftForInner) * 2, - (radius.height() - shiftForInner) * 2), angleStart, angleSpan); - break; - } - case INSET: - if (s == BSTop || s == BSLeft) - c = c.dark(); - case OUTSET: - if (style == OUTSET && (s == BSBottom || s == BSRight)) - c = c.dark(); - case SOLID: - graphicsContext->setStrokeStyle(SolidStroke); - graphicsContext->setStrokeColor(c); - graphicsContext->setStrokeThickness(thickness); - graphicsContext->strokeArc(IntRect(x, y, radius.width() * 2, radius.height() * 2), angleStart, angleSpan); - break; - } -} - -void RenderObject::drawBorder(GraphicsContext* graphicsContext, int x1, int y1, int x2, int y2, - BorderSide s, Color c, const Color& textcolor, EBorderStyle style, - int adjbw1, int adjbw2) -{ - int width = (s == BSTop || s == BSBottom ? y2 - y1 : x2 - x1); - - if (style == DOUBLE && width < 3) - style = SOLID; - - if (!c.isValid()) { - if (style == INSET || style == OUTSET || style == RIDGE || style == GROOVE) - c.setRGB(238, 238, 238); - else - c = textcolor; - } - - switch (style) { - case BNONE: - case BHIDDEN: - return; - case DOTTED: - case DASHED: - graphicsContext->setStrokeColor(c); - graphicsContext->setStrokeThickness(width); - graphicsContext->setStrokeStyle(style == DASHED ? DashedStroke : DottedStroke); - - if (width > 0) - switch (s) { - case BSBottom: - case BSTop: - graphicsContext->drawLine(IntPoint(x1, (y1 + y2) / 2), IntPoint(x2, (y1 + y2) / 2)); - break; - case BSRight: - case BSLeft: - graphicsContext->drawLine(IntPoint((x1 + x2) / 2, y1), IntPoint((x1 + x2) / 2, y2)); - break; - } - break; - case DOUBLE: { - int third = (width + 1) / 3; - - if (adjbw1 == 0 && adjbw2 == 0) { - graphicsContext->setStrokeStyle(NoStroke); - graphicsContext->setFillColor(c); - switch (s) { - case BSTop: - case BSBottom: - graphicsContext->drawRect(IntRect(x1, y1, x2 - x1, third)); - graphicsContext->drawRect(IntRect(x1, y2 - third, x2 - x1, third)); - break; - case BSLeft: - graphicsContext->drawRect(IntRect(x1, y1 + 1, third, y2 - y1 - 1)); - graphicsContext->drawRect(IntRect(x2 - third, y1 + 1, third, y2 - y1 - 1)); - break; - case BSRight: - graphicsContext->drawRect(IntRect(x1, y1 + 1, third, y2 - y1 - 1)); - graphicsContext->drawRect(IntRect(x2 - third, y1 + 1, third, y2 - y1 - 1)); - break; - } - } else { - int adjbw1bigthird = ((adjbw1 > 0) ? adjbw1 + 1 : adjbw1 - 1) / 3; - int adjbw2bigthird = ((adjbw2 > 0) ? adjbw2 + 1 : adjbw2 - 1) / 3; - - switch (s) { - case BSTop: - drawBorder(graphicsContext, x1 + max((-adjbw1 * 2 + 1) / 3, 0), - y1, x2 - max((-adjbw2 * 2 + 1) / 3, 0), y1 + third, - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - drawBorder(graphicsContext, x1 + max((adjbw1 * 2 + 1) / 3, 0), - y2 - third, x2 - max((adjbw2 * 2 + 1) / 3, 0), y2, - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - break; - case BSLeft: - drawBorder(graphicsContext, x1, y1 + max((-adjbw1 * 2 + 1) / 3, 0), - x1 + third, y2 - max((-adjbw2 * 2 + 1) / 3, 0), - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - drawBorder(graphicsContext, x2 - third, y1 + max((adjbw1 * 2 + 1) / 3, 0), - x2, y2 - max((adjbw2 * 2 + 1) / 3, 0), - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - break; - case BSBottom: - drawBorder(graphicsContext, x1 + max((adjbw1 * 2 + 1) / 3, 0), - y1, x2 - max((adjbw2 * 2 + 1) / 3, 0), y1 + third, - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - drawBorder(graphicsContext, x1 + max((-adjbw1 * 2 + 1) / 3, 0), - y2 - third, x2 - max((-adjbw2 * 2 + 1) / 3, 0), y2, - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - break; - case BSRight: - drawBorder(graphicsContext, x1, y1 + max((adjbw1 * 2 + 1) / 3, 0), - x1 + third, y2 - max(( adjbw2 * 2 + 1) / 3, 0), - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - drawBorder(graphicsContext, x2 - third, y1 + max((-adjbw1 * 2 + 1) / 3, 0), - x2, y2 - max((-adjbw2 * 2 + 1) / 3, 0), - s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird); - break; - default: - break; - } - } - break; - } - case RIDGE: - case GROOVE: - { - EBorderStyle s1; - EBorderStyle s2; - if (style == GROOVE) { - s1 = INSET; - s2 = OUTSET; - } else { - s1 = OUTSET; - s2 = INSET; - } - - int adjbw1bighalf = ((adjbw1 > 0) ? adjbw1 + 1 : adjbw1 - 1) / 2; - int adjbw2bighalf = ((adjbw2 > 0) ? adjbw2 + 1 : adjbw2 - 1) / 2; - - switch (s) { - case BSTop: - drawBorder(graphicsContext, x1 + max(-adjbw1, 0) / 2, y1, x2 - max(-adjbw2, 0) / 2, (y1 + y2 + 1) / 2, - s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf); - drawBorder(graphicsContext, x1 + max(adjbw1 + 1, 0) / 2, (y1 + y2 + 1) / 2, x2 - max(adjbw2 + 1, 0) / 2, y2, - s, c, textcolor, s2, adjbw1 / 2, adjbw2 / 2); - break; - case BSLeft: - drawBorder(graphicsContext, x1, y1 + max(-adjbw1, 0) / 2, (x1 + x2 + 1) / 2, y2 - max(-adjbw2, 0) / 2, - s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf); - drawBorder(graphicsContext, (x1 + x2 + 1) / 2, y1 + max(adjbw1 + 1, 0) / 2, x2, y2 - max(adjbw2 + 1, 0) / 2, - s, c, textcolor, s2, adjbw1 / 2, adjbw2 / 2); - break; - case BSBottom: - drawBorder(graphicsContext, x1 + max(adjbw1, 0) / 2, y1, x2 - max(adjbw2, 0) / 2, (y1 + y2 + 1) / 2, - s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf); - drawBorder(graphicsContext, x1 + max(-adjbw1 + 1, 0) / 2, (y1 + y2 + 1) / 2, x2 - max(-adjbw2 + 1, 0) / 2, y2, - s, c, textcolor, s1, adjbw1/2, adjbw2/2); - break; - case BSRight: - drawBorder(graphicsContext, x1, y1 + max(adjbw1, 0) / 2, (x1 + x2 + 1) / 2, y2 - max(adjbw2, 0) / 2, - s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf); - drawBorder(graphicsContext, (x1 + x2 + 1) / 2, y1 + max(-adjbw1 + 1, 0) / 2, x2, y2 - max(-adjbw2 + 1, 0) / 2, - s, c, textcolor, s1, adjbw1/2, adjbw2/2); - break; - } - break; - } - case INSET: - if (s == BSTop || s == BSLeft) - c = c.dark(); - // fall through - case OUTSET: - if (style == OUTSET && (s == BSBottom || s == BSRight)) - c = c.dark(); - // fall through - case SOLID: { - graphicsContext->setStrokeStyle(NoStroke); - graphicsContext->setFillColor(c); - ASSERT(x2 >= x1); - ASSERT(y2 >= y1); - if (!adjbw1 && !adjbw2) { - graphicsContext->drawRect(IntRect(x1, y1, x2 - x1, y2 - y1)); - return; - } - FloatPoint quad[4]; - switch (s) { - case BSTop: - quad[0] = FloatPoint(x1 + max(-adjbw1, 0), y1); - quad[1] = FloatPoint(x1 + max(adjbw1, 0), y2); - quad[2] = FloatPoint(x2 - max(adjbw2, 0), y2); - quad[3] = FloatPoint(x2 - max(-adjbw2, 0), y1); - break; - case BSBottom: - quad[0] = FloatPoint(x1 + max(adjbw1, 0), y1); - quad[1] = FloatPoint(x1 + max(-adjbw1, 0), y2); - quad[2] = FloatPoint(x2 - max(-adjbw2, 0), y2); - quad[3] = FloatPoint(x2 - max(adjbw2, 0), y1); - break; - case BSLeft: - quad[0] = FloatPoint(x1, y1 + max(-adjbw1, 0)); - quad[1] = FloatPoint(x1, y2 - max(-adjbw2, 0)); - quad[2] = FloatPoint(x2, y2 - max(adjbw2, 0)); - quad[3] = FloatPoint(x2, y1 + max(adjbw1, 0)); - break; - case BSRight: - quad[0] = FloatPoint(x1, y1 + max(adjbw1, 0)); - quad[1] = FloatPoint(x1, y2 - max(adjbw2, 0)); - quad[2] = FloatPoint(x2, y2 - max(-adjbw2, 0)); - quad[3] = FloatPoint(x2, y1 + max(-adjbw1, 0)); - break; - } - graphicsContext->drawConvexPolygon(4, quad); - break; - } - } -} - -bool RenderObject::paintNinePieceImage(GraphicsContext* graphicsContext, int tx, int ty, int w, int h, const RenderStyle* style, - const NinePieceImage& ninePieceImage, CompositeOperator op) -{ - StyleImage* styleImage = ninePieceImage.image(); - if (!styleImage || !styleImage->canRender(style->effectiveZoom())) - return false; - - if (!styleImage->isLoaded()) - return true; // Never paint a nine-piece image incrementally, but don't paint the fallback borders either. - - // If we have a border radius, the image gets clipped to the rounded rect. - bool clipped = false; - if (style->hasBorderRadius()) { - IntRect clipRect(tx, ty, w, h); - graphicsContext->save(); - graphicsContext->addRoundedRectClip(clipRect, style->borderTopLeftRadius(), style->borderTopRightRadius(), - style->borderBottomLeftRadius(), style->borderBottomRightRadius()); - clipped = true; - } - - // FIXME: border-image is broken with full page zooming when tiling has to happen, since the tiling function - // doesn't have any understanding of the zoom that is in effect on the tile. - styleImage->setImageContainerSize(IntSize(w, h)); - IntSize imageSize = styleImage->imageSize(this, 1.0f); - int imageWidth = imageSize.width(); - int imageHeight = imageSize.height(); - - int topSlice = min(imageHeight, ninePieceImage.m_slices.top().calcValue(imageHeight)); - int bottomSlice = min(imageHeight, ninePieceImage.m_slices.bottom().calcValue(imageHeight)); - int leftSlice = min(imageWidth, ninePieceImage.m_slices.left().calcValue(imageWidth)); - int rightSlice = min(imageWidth, ninePieceImage.m_slices.right().calcValue(imageWidth)); - - ENinePieceImageRule hRule = ninePieceImage.horizontalRule(); - ENinePieceImageRule vRule = ninePieceImage.verticalRule(); - - bool fitToBorder = style->borderImage() == ninePieceImage; - - int leftWidth = fitToBorder ? style->borderLeftWidth() : leftSlice; - int topWidth = fitToBorder ? style->borderTopWidth() : topSlice; - int rightWidth = fitToBorder ? style->borderRightWidth() : rightSlice; - int bottomWidth = fitToBorder ? style->borderBottomWidth() : bottomSlice; - - bool drawLeft = leftSlice > 0 && leftWidth > 0; - bool drawTop = topSlice > 0 && topWidth > 0; - bool drawRight = rightSlice > 0 && rightWidth > 0; - bool drawBottom = bottomSlice > 0 && bottomWidth > 0; - bool drawMiddle = (imageWidth - leftSlice - rightSlice) > 0 && (w - leftWidth - rightWidth) > 0 && - (imageHeight - topSlice - bottomSlice) > 0 && (h - topWidth - bottomWidth) > 0; - - Image* image = styleImage->image(this, imageSize); - - if (drawLeft) { - // Paint the top and bottom left corners. - - // The top left corner rect is (tx, ty, leftWidth, topWidth) - // The rect to use from within the image is obtained from our slice, and is (0, 0, leftSlice, topSlice) - if (drawTop) - graphicsContext->drawImage(image, IntRect(tx, ty, leftWidth, topWidth), - IntRect(0, 0, leftSlice, topSlice), op); - - // The bottom left corner rect is (tx, ty + h - bottomWidth, leftWidth, bottomWidth) - // The rect to use from within the image is (0, imageHeight - bottomSlice, leftSlice, botomSlice) - if (drawBottom) - graphicsContext->drawImage(image, IntRect(tx, ty + h - bottomWidth, leftWidth, bottomWidth), - IntRect(0, imageHeight - bottomSlice, leftSlice, bottomSlice), op); - - // Paint the left edge. - // Have to scale and tile into the border rect. - graphicsContext->drawTiledImage(image, IntRect(tx, ty + topWidth, leftWidth, - h - topWidth - bottomWidth), - IntRect(0, topSlice, leftSlice, imageHeight - topSlice - bottomSlice), - Image::StretchTile, (Image::TileRule)vRule, op); - } - - if (drawRight) { - // Paint the top and bottom right corners - // The top right corner rect is (tx + w - rightWidth, ty, rightWidth, topWidth) - // The rect to use from within the image is obtained from our slice, and is (imageWidth - rightSlice, 0, rightSlice, topSlice) - if (drawTop) - graphicsContext->drawImage(image, IntRect(tx + w - rightWidth, ty, rightWidth, topWidth), - IntRect(imageWidth - rightSlice, 0, rightSlice, topSlice), op); - - // The bottom right corner rect is (tx + w - rightWidth, ty + h - bottomWidth, rightWidth, bottomWidth) - // The rect to use from within the image is (imageWidth - rightSlice, imageHeight - bottomSlice, rightSlice, bottomSlice) - if (drawBottom) - graphicsContext->drawImage(image, IntRect(tx + w - rightWidth, ty + h - bottomWidth, rightWidth, bottomWidth), - IntRect(imageWidth - rightSlice, imageHeight - bottomSlice, rightSlice, bottomSlice), op); - - // Paint the right edge. - graphicsContext->drawTiledImage(image, IntRect(tx + w - rightWidth, ty + topWidth, rightWidth, - h - topWidth - bottomWidth), - IntRect(imageWidth - rightSlice, topSlice, rightSlice, imageHeight - topSlice - bottomSlice), - Image::StretchTile, (Image::TileRule)vRule, op); - } - - // Paint the top edge. - if (drawTop) - graphicsContext->drawTiledImage(image, IntRect(tx + leftWidth, ty, w - leftWidth - rightWidth, topWidth), - IntRect(leftSlice, 0, imageWidth - rightSlice - leftSlice, topSlice), - (Image::TileRule)hRule, Image::StretchTile, op); - - // Paint the bottom edge. - if (drawBottom) - graphicsContext->drawTiledImage(image, IntRect(tx + leftWidth, ty + h - bottomWidth, - w - leftWidth - rightWidth, bottomWidth), - IntRect(leftSlice, imageHeight - bottomSlice, imageWidth - rightSlice - leftSlice, bottomSlice), - (Image::TileRule)hRule, Image::StretchTile, op); - - // Paint the middle. - if (drawMiddle) - graphicsContext->drawTiledImage(image, IntRect(tx + leftWidth, ty + topWidth, w - leftWidth - rightWidth, - h - topWidth - bottomWidth), - IntRect(leftSlice, topSlice, imageWidth - rightSlice - leftSlice, imageHeight - topSlice - bottomSlice), - (Image::TileRule)hRule, (Image::TileRule)vRule, op); - - // Clear the clip for the border radius. - if (clipped) - graphicsContext->restore(); - - return true; -} - -void RenderObject::paintBorder(GraphicsContext* graphicsContext, int tx, int ty, int w, int h, - const RenderStyle* style, bool begin, bool end) -{ - if (paintNinePieceImage(graphicsContext, tx, ty, w, h, style, style->borderImage())) - return; - - const Color& tc = style->borderTopColor(); - const Color& bc = style->borderBottomColor(); - const Color& lc = style->borderLeftColor(); - const Color& rc = style->borderRightColor(); - - bool tt = style->borderTopIsTransparent(); - bool bt = style->borderBottomIsTransparent(); - bool rt = style->borderRightIsTransparent(); - bool lt = style->borderLeftIsTransparent(); - - EBorderStyle ts = style->borderTopStyle(); - EBorderStyle bs = style->borderBottomStyle(); - EBorderStyle ls = style->borderLeftStyle(); - EBorderStyle rs = style->borderRightStyle(); - - bool renderTop = ts > BHIDDEN && !tt; - bool renderLeft = ls > BHIDDEN && begin && !lt; - bool renderRight = rs > BHIDDEN && end && !rt; - bool renderBottom = bs > BHIDDEN && !bt; - - // Need sufficient width and height to contain border radius curves. Sanity check our border radii - // and our width/height values to make sure the curves can all fit. If not, then we won't paint - // any border radii. - bool renderRadii = false; - IntSize topLeft = style->borderTopLeftRadius(); - IntSize topRight = style->borderTopRightRadius(); - IntSize bottomLeft = style->borderBottomLeftRadius(); - IntSize bottomRight = style->borderBottomRightRadius(); - - if (style->hasBorderRadius() && - static_cast(w) >= static_cast(topLeft.width()) + static_cast(topRight.width()) && - static_cast(w) >= static_cast(bottomLeft.width()) + static_cast(bottomRight.width()) && - static_cast(h) >= static_cast(topLeft.height()) + static_cast(bottomLeft.height()) && - static_cast(h) >= static_cast(topRight.height()) + static_cast(bottomRight.height())) - renderRadii = true; - - // Clip to the rounded rectangle. - if (renderRadii) { - graphicsContext->save(); - graphicsContext->addRoundedRectClip(IntRect(tx, ty, w, h), topLeft, topRight, bottomLeft, bottomRight); - } - - int firstAngleStart, secondAngleStart, firstAngleSpan, secondAngleSpan; - float thickness; - bool upperLeftBorderStylesMatch = renderLeft && (ts == ls) && (tc == lc); - bool upperRightBorderStylesMatch = renderRight && (ts == rs) && (tc == rc) && (ts != OUTSET) && (ts != RIDGE) && (ts != INSET) && (ts != GROOVE); - bool lowerLeftBorderStylesMatch = renderLeft && (bs == ls) && (bc == lc) && (bs != OUTSET) && (bs != RIDGE) && (bs != INSET) && (bs != GROOVE); - bool lowerRightBorderStylesMatch = renderRight && (bs == rs) && (bc == rc); - - if (renderTop) { - bool ignore_left = (renderRadii && topLeft.width() > 0) || - (tc == lc && tt == lt && ts >= OUTSET && - (ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET)); - - bool ignore_right = (renderRadii && topRight.width() > 0) || - (tc == rc && tt == rt && ts >= OUTSET && - (rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET)); - - int x = tx; - int x2 = tx + w; - if (renderRadii) { - x += topLeft.width(); - x2 -= topRight.width(); - } - - drawBorder(graphicsContext, x, ty, x2, ty + style->borderTopWidth(), BSTop, tc, style->color(), ts, - ignore_left ? 0 : style->borderLeftWidth(), ignore_right ? 0 : style->borderRightWidth()); - - if (renderRadii) { - int leftY = ty; - - // We make the arc double thick and let the clip rect take care of clipping the extra off. - // We're doing this because it doesn't seem possible to match the curve of the clip exactly - // with the arc-drawing function. - thickness = style->borderTopWidth() * 2; - - if (topLeft.width()) { - int leftX = tx; - // The inner clip clips inside the arc. This is especially important for 1px borders. - bool applyLeftInnerClip = (style->borderLeftWidth() < topLeft.width()) - && (style->borderTopWidth() < topLeft.height()) - && (ts != DOUBLE || style->borderTopWidth() > 6); - if (applyLeftInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, topLeft.width() * 2, topLeft.height() * 2), - style->borderTopWidth()); - } - - firstAngleStart = 90; - firstAngleSpan = upperLeftBorderStylesMatch ? 90 : 45; - - // Draw upper left arc - drawBorderArc(graphicsContext, leftX, leftY, thickness, topLeft, firstAngleStart, firstAngleSpan, - BSTop, tc, style->color(), ts, true); - if (applyLeftInnerClip) - graphicsContext->restore(); - } - - if (topRight.width()) { - int rightX = tx + w - topRight.width() * 2; - bool applyRightInnerClip = (style->borderRightWidth() < topRight.width()) - && (style->borderTopWidth() < topRight.height()) - && (ts != DOUBLE || style->borderTopWidth() > 6); - if (applyRightInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(rightX, leftY, topRight.width() * 2, topRight.height() * 2), - style->borderTopWidth()); - } - - if (upperRightBorderStylesMatch) { - secondAngleStart = 0; - secondAngleSpan = 90; - } else { - secondAngleStart = 45; - secondAngleSpan = 45; - } - - // Draw upper right arc - drawBorderArc(graphicsContext, rightX, leftY, thickness, topRight, secondAngleStart, secondAngleSpan, - BSTop, tc, style->color(), ts, false); - if (applyRightInnerClip) - graphicsContext->restore(); - } - } - } - - if (renderBottom) { - bool ignore_left = (renderRadii && bottomLeft.width() > 0) || - (bc == lc && bt == lt && bs >= OUTSET && - (ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET)); - - bool ignore_right = (renderRadii && bottomRight.width() > 0) || - (bc == rc && bt == rt && bs >= OUTSET && - (rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET)); - - int x = tx; - int x2 = tx + w; - if (renderRadii) { - x += bottomLeft.width(); - x2 -= bottomRight.width(); - } - - drawBorder(graphicsContext, x, ty + h - style->borderBottomWidth(), x2, ty + h, BSBottom, bc, style->color(), bs, - ignore_left ? 0 : style->borderLeftWidth(), ignore_right ? 0 : style->borderRightWidth()); - - if (renderRadii) { - thickness = style->borderBottomWidth() * 2; - - if (bottomLeft.width()) { - int leftX = tx; - int leftY = ty + h - bottomLeft.height() * 2; - bool applyLeftInnerClip = (style->borderLeftWidth() < bottomLeft.width()) - && (style->borderBottomWidth() < bottomLeft.height()) - && (bs != DOUBLE || style->borderBottomWidth() > 6); - if (applyLeftInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, bottomLeft.width() * 2, bottomLeft.height() * 2), - style->borderBottomWidth()); - } - - if (lowerLeftBorderStylesMatch) { - firstAngleStart = 180; - firstAngleSpan = 90; - } else { - firstAngleStart = 225; - firstAngleSpan = 45; - } - - // Draw lower left arc - drawBorderArc(graphicsContext, leftX, leftY, thickness, bottomLeft, firstAngleStart, firstAngleSpan, - BSBottom, bc, style->color(), bs, true); - if (applyLeftInnerClip) - graphicsContext->restore(); - } - - if (bottomRight.width()) { - int rightY = ty + h - bottomRight.height() * 2; - int rightX = tx + w - bottomRight.width() * 2; - bool applyRightInnerClip = (style->borderRightWidth() < bottomRight.width()) - && (style->borderBottomWidth() < bottomRight.height()) - && (bs != DOUBLE || style->borderBottomWidth() > 6); - if (applyRightInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(rightX, rightY, bottomRight.width() * 2, bottomRight.height() * 2), - style->borderBottomWidth()); - } - - secondAngleStart = 270; - secondAngleSpan = lowerRightBorderStylesMatch ? 90 : 45; - - // Draw lower right arc - drawBorderArc(graphicsContext, rightX, rightY, thickness, bottomRight, secondAngleStart, secondAngleSpan, - BSBottom, bc, style->color(), bs, false); - if (applyRightInnerClip) - graphicsContext->restore(); - } - } - } - - if (renderLeft) { - bool ignore_top = (renderRadii && topLeft.height() > 0) || - (tc == lc && tt == lt && ls >= OUTSET && - (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET)); - - bool ignore_bottom = (renderRadii && bottomLeft.height() > 0) || - (bc == lc && bt == lt && ls >= OUTSET && - (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET)); - - int y = ty; - int y2 = ty + h; - if (renderRadii) { - y += topLeft.height(); - y2 -= bottomLeft.height(); - } - - drawBorder(graphicsContext, tx, y, tx + style->borderLeftWidth(), y2, BSLeft, lc, style->color(), ls, - ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth()); - - if (renderRadii && (!upperLeftBorderStylesMatch || !lowerLeftBorderStylesMatch)) { - int topX = tx; - thickness = style->borderLeftWidth() * 2; - - if (!upperLeftBorderStylesMatch && topLeft.width()) { - int topY = ty; - bool applyTopInnerClip = (style->borderLeftWidth() < topLeft.width()) - && (style->borderTopWidth() < topLeft.height()) - && (ls != DOUBLE || style->borderLeftWidth() > 6); - if (applyTopInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, topLeft.width() * 2, topLeft.height() * 2), - style->borderLeftWidth()); - } - - firstAngleStart = 135; - firstAngleSpan = 45; - - // Draw top left arc - drawBorderArc(graphicsContext, topX, topY, thickness, topLeft, firstAngleStart, firstAngleSpan, - BSLeft, lc, style->color(), ls, true); - if (applyTopInnerClip) - graphicsContext->restore(); - } - - if (!lowerLeftBorderStylesMatch && bottomLeft.width()) { - int bottomY = ty + h - bottomLeft.height() * 2; - bool applyBottomInnerClip = (style->borderLeftWidth() < bottomLeft.width()) - && (style->borderBottomWidth() < bottomLeft.height()) - && (ls != DOUBLE || style->borderLeftWidth() > 6); - if (applyBottomInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(topX, bottomY, bottomLeft.width() * 2, bottomLeft.height() * 2), - style->borderLeftWidth()); - } - - secondAngleStart = 180; - secondAngleSpan = 45; - - // Draw bottom left arc - drawBorderArc(graphicsContext, topX, bottomY, thickness, bottomLeft, secondAngleStart, secondAngleSpan, - BSLeft, lc, style->color(), ls, false); - if (applyBottomInnerClip) - graphicsContext->restore(); - } - } - } - - if (renderRight) { - bool ignore_top = (renderRadii && topRight.height() > 0) || - ((tc == rc) && (tt == rt) && - (rs >= DOTTED || rs == INSET) && - (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET)); - - bool ignore_bottom = (renderRadii && bottomRight.height() > 0) || - ((bc == rc) && (bt == rt) && - (rs >= DOTTED || rs == INSET) && - (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET)); - - int y = ty; - int y2 = ty + h; - if (renderRadii) { - y += topRight.height(); - y2 -= bottomRight.height(); - } - - drawBorder(graphicsContext, tx + w - style->borderRightWidth(), y, tx + w, y2, BSRight, rc, style->color(), rs, - ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth()); - - if (renderRadii && (!upperRightBorderStylesMatch || !lowerRightBorderStylesMatch)) { - thickness = style->borderRightWidth() * 2; - - if (!upperRightBorderStylesMatch && topRight.width()) { - int topX = tx + w - topRight.width() * 2; - int topY = ty; - bool applyTopInnerClip = (style->borderRightWidth() < topRight.width()) - && (style->borderTopWidth() < topRight.height()) - && (rs != DOUBLE || style->borderRightWidth() > 6); - if (applyTopInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, topRight.width() * 2, topRight.height() * 2), - style->borderRightWidth()); - } - - firstAngleStart = 0; - firstAngleSpan = 45; - - // Draw top right arc - drawBorderArc(graphicsContext, topX, topY, thickness, topRight, firstAngleStart, firstAngleSpan, - BSRight, rc, style->color(), rs, true); - if (applyTopInnerClip) - graphicsContext->restore(); - } - - if (!lowerRightBorderStylesMatch && bottomRight.width()) { - int bottomX = tx + w - bottomRight.width() * 2; - int bottomY = ty + h - bottomRight.height() * 2; - bool applyBottomInnerClip = (style->borderRightWidth() < bottomRight.width()) - && (style->borderBottomWidth() < bottomRight.height()) - && (rs != DOUBLE || style->borderRightWidth() > 6); - if (applyBottomInnerClip) { - graphicsContext->save(); - graphicsContext->addInnerRoundedRectClip(IntRect(bottomX, bottomY, bottomRight.width() * 2, bottomRight.height() * 2), - style->borderRightWidth()); - } - - secondAngleStart = 315; - secondAngleSpan = 45; - - // Draw bottom right arc - drawBorderArc(graphicsContext, bottomX, bottomY, thickness, bottomRight, secondAngleStart, secondAngleSpan, - BSRight, rc, style->color(), rs, false); - if (applyBottomInnerClip) - graphicsContext->restore(); - } - } - } - - if (renderRadii) - graphicsContext->restore(); -} - -void RenderObject::paintBoxShadow(GraphicsContext* context, int tx, int ty, int w, int h, const RenderStyle* s, bool begin, bool end) -{ - // FIXME: Deal with border-image. Would be great to use border-image as a mask. - - IntRect rect(tx, ty, w, h); - bool hasBorderRadius = s->hasBorderRadius(); - bool hasOpaqueBackground = s->backgroundColor().isValid() && s->backgroundColor().alpha() == 255; - for (ShadowData* shadow = s->boxShadow(); shadow; shadow = shadow->next) { - context->save(); - - IntSize shadowOffset(shadow->x, shadow->y); - int shadowBlur = shadow->blur; - IntRect fillRect(rect); - - if (hasBorderRadius) { - IntRect shadowRect(rect); - shadowRect.inflate(shadowBlur); - shadowRect.move(shadowOffset); - context->clip(shadowRect); - - // Move the fill just outside the clip, adding 1 pixel separation so that the fill does not - // bleed in (due to antialiasing) if the context is transformed. - IntSize extraOffset(w + max(0, shadowOffset.width()) + shadowBlur + 1, 0); - shadowOffset -= extraOffset; - fillRect.move(extraOffset); - } - - context->setShadow(shadowOffset, shadowBlur, shadow->color); - if (hasBorderRadius) { - IntSize topLeft = begin ? s->borderTopLeftRadius() : IntSize(); - IntSize topRight = end ? s->borderTopRightRadius() : IntSize(); - IntSize bottomLeft = begin ? s->borderBottomLeftRadius() : IntSize(); - IntSize bottomRight = end ? s->borderBottomRightRadius() : IntSize(); - if (!hasOpaqueBackground) - context->clipOutRoundedRect(rect, topLeft, topRight, bottomLeft, bottomRight); - context->fillRoundedRect(fillRect, topLeft, topRight, bottomLeft, bottomRight, Color::black); - } else { - if (!hasOpaqueBackground) - context->clipOut(rect); - context->fillRect(fillRect, Color::black); - } - context->restore(); - } -} - -void RenderObject::addLineBoxRects(Vector&, unsigned startOffset, unsigned endOffset, bool useSelectionHeight) -{ -} - -void RenderObject::absoluteRects(Vector& rects, int tx, int ty, bool topLevel) -{ - // For blocks inside inlines, we go ahead and include margins so that we run right up to the - // inline boxes above and below us (thus getting merged with them to form a single irregular - // shape). - if (topLevel && continuation()) { - rects.append(IntRect(tx, ty - collapsedMarginTop(), - width(), height() + collapsedMarginTop() + collapsedMarginBottom())); - continuation()->absoluteRects(rects, - tx - xPos() + continuation()->containingBlock()->xPos(), - ty - yPos() + continuation()->containingBlock()->yPos(), topLevel); - } else - rects.append(IntRect(tx, ty, width(), height() + borderTopExtra() + borderBottomExtra())); -} - -IntRect RenderObject::absoluteBoundingBoxRect() -{ - int x, y; - absolutePosition(x, y); - Vector rects; - absoluteRects(rects, x, y); - - size_t n = rects.size(); - if (!n) - return IntRect(); - - IntRect result = rects[0]; - for (size_t i = 1; i < n; ++i) - result.unite(rects[i]); - return result; -} - -void RenderObject::addAbsoluteRectForLayer(IntRect& result) -{ - if (hasLayer()) - result.unite(absoluteBoundingBoxRect()); - for (RenderObject* current = firstChild(); current; current = current->nextSibling()) - current->addAbsoluteRectForLayer(result); -} - -IntRect RenderObject::paintingRootRect(IntRect& topLevelRect) -{ - IntRect result = absoluteBoundingBoxRect(); - topLevelRect = result; - for (RenderObject* current = firstChild(); current; current = current->nextSibling()) - current->addAbsoluteRectForLayer(result); - return result; -} - -void RenderObject::addPDFURLRect(GraphicsContext* context, const IntRect& rect) -{ - if (rect.isEmpty()) - return; - Node* node = element(); - if (!node || !node->isLink() || !node->isElementNode()) - return; - const AtomicString& href = static_cast(node)->getAttribute(hrefAttr); - if (href.isNull()) - return; - context->setURLForRect(node->document()->completeURL(href), rect); -} - - -void RenderObject::addFocusRingRects(GraphicsContext* graphicsContext, int tx, int ty) -{ - // For blocks inside inlines, we go ahead and include margins so that we run right up to the - // inline boxes above and below us (thus getting merged with them to form a single irregular - // shape). - if (continuation()) { - graphicsContext->addFocusRingRect(IntRect(tx, ty - collapsedMarginTop(), width(), height() + collapsedMarginTop() + collapsedMarginBottom())); - continuation()->addFocusRingRects(graphicsContext, - tx - xPos() + continuation()->containingBlock()->xPos(), - ty - yPos() + continuation()->containingBlock()->yPos()); - } else - graphicsContext->addFocusRingRect(IntRect(tx, ty, width(), height())); -} - -void RenderObject::paintOutline(GraphicsContext* graphicsContext, int tx, int ty, int w, int h, const RenderStyle* style) -{ - if (!hasOutline()) - return; - - int ow = style->outlineWidth(); - - EBorderStyle os = style->outlineStyle(); - - Color oc = style->outlineColor(); - if (!oc.isValid()) - oc = style->color(); - - int offset = style->outlineOffset(); - - if (style->outlineStyleIsAuto() || hasOutlineAnnotation()) { - if (!theme()->supportsFocusRing(style)) { - // Only paint the focus ring by hand if the theme isn't able to draw the focus ring. - graphicsContext->initFocusRing(ow, offset); - if (style->outlineStyleIsAuto()) - addFocusRingRects(graphicsContext, tx, ty); - else - addPDFURLRect(graphicsContext, graphicsContext->focusRingBoundingRect()); - graphicsContext->drawFocusRing(oc); - graphicsContext->clearFocusRing(); - } - } - - if (style->outlineStyleIsAuto() || style->outlineStyle() == BNONE) - return; - - tx -= offset; - ty -= offset; - w += 2 * offset; - h += 2 * offset; - - if (h < 0 || w < 0) - return; - - drawBorder(graphicsContext, tx - ow, ty - ow, tx, ty + h + ow, - BSLeft, Color(oc), style->color(), os, ow, ow); - - drawBorder(graphicsContext, tx - ow, ty - ow, tx + w + ow, ty, - BSTop, Color(oc), style->color(), os, ow, ow); - - drawBorder(graphicsContext, tx + w, ty - ow, tx + w + ow, ty + h + ow, - BSRight, Color(oc), style->color(), os, ow, ow); - - drawBorder(graphicsContext, tx - ow, ty + h, tx + w + ow, ty + h + ow, - BSBottom, Color(oc), style->color(), os, ow, ow); -} - -void RenderObject::paint(PaintInfo& /*paintInfo*/, int /*tx*/, int /*ty*/) -{ -} - -void RenderObject::repaint(bool immediate) -{ - // Can't use view(), since we might be unrooted. - RenderObject* o = this; - while (o->parent()) - o = o->parent(); - if (!o->isRenderView()) - return; - RenderView* view = static_cast(o); - if (view->printing()) - return; // Don't repaint if we're printing. - view->repaintViewRectangle(absoluteClippedOverflowRect(), immediate); -} - -void RenderObject::repaintRectangle(const IntRect& r, bool immediate) -{ - // Can't use view(), since we might be unrooted. - RenderObject* o = this; - while (o->parent()) - o = o->parent(); - if (!o->isRenderView()) - return; - RenderView* view = static_cast(o); - if (view->printing()) - return; // Don't repaint if we're printing. - IntRect absRect(r); - absRect.move(view->layoutDelta()); - computeAbsoluteRepaintRect(absRect); - view->repaintViewRectangle(absRect, immediate); -} - -bool RenderObject::repaintAfterLayoutIfNeeded(const IntRect& oldBounds, const IntRect& oldOutlineBox) -{ - RenderView* v = view(); - if (v->printing()) - return false; // Don't repaint if we're printing. - - IntRect newBounds = absoluteClippedOverflowRect(); - IntRect newOutlineBox; - - bool fullRepaint = selfNeedsLayout(); - // Presumably a background or a border exists if border-fit:lines was specified. - if (!fullRepaint && style()->borderFit() == BorderFitLines) - fullRepaint = true; - if (!fullRepaint) { - newOutlineBox = absoluteOutlineBox(); - if (newOutlineBox.location() != oldOutlineBox.location() || (mustRepaintBackgroundOrBorder() && (newBounds != oldBounds || newOutlineBox != oldOutlineBox))) - fullRepaint = true; - } - if (fullRepaint) { - v->repaintViewRectangle(oldBounds); - if (newBounds != oldBounds) - v->repaintViewRectangle(newBounds); - return true; - } - - if (newBounds == oldBounds && newOutlineBox == oldOutlineBox) - return false; - - int deltaLeft = newBounds.x() - oldBounds.x(); - if (deltaLeft > 0) - v->repaintViewRectangle(IntRect(oldBounds.x(), oldBounds.y(), deltaLeft, oldBounds.height())); - else if (deltaLeft < 0) - v->repaintViewRectangle(IntRect(newBounds.x(), newBounds.y(), -deltaLeft, newBounds.height())); - - int deltaRight = newBounds.right() - oldBounds.right(); - if (deltaRight > 0) - v->repaintViewRectangle(IntRect(oldBounds.right(), newBounds.y(), deltaRight, newBounds.height())); - else if (deltaRight < 0) - v->repaintViewRectangle(IntRect(newBounds.right(), oldBounds.y(), -deltaRight, oldBounds.height())); - - int deltaTop = newBounds.y() - oldBounds.y(); - if (deltaTop > 0) - v->repaintViewRectangle(IntRect(oldBounds.x(), oldBounds.y(), oldBounds.width(), deltaTop)); - else if (deltaTop < 0) - v->repaintViewRectangle(IntRect(newBounds.x(), newBounds.y(), newBounds.width(), -deltaTop)); - - int deltaBottom = newBounds.bottom() - oldBounds.bottom(); - if (deltaBottom > 0) - v->repaintViewRectangle(IntRect(newBounds.x(), oldBounds.bottom(), newBounds.width(), deltaBottom)); - else if (deltaBottom < 0) - v->repaintViewRectangle(IntRect(oldBounds.x(), newBounds.bottom(), oldBounds.width(), -deltaBottom)); - - if (newOutlineBox == oldOutlineBox) - return false; - - // We didn't move, but we did change size. Invalidate the delta, which will consist of possibly - // two rectangles (but typically only one). - RenderStyle* outlineStyle = !isInline() && continuation() ? continuation()->style() : style(); - int ow = outlineStyle->outlineSize(); - ShadowData* boxShadow = style()->boxShadow(); - int width = abs(newOutlineBox.width() - oldOutlineBox.width()); - if (width) { - int shadowRight = 0; - for (ShadowData* shadow = boxShadow; shadow; shadow = shadow->next) - shadowRight = max(shadow->x + shadow->blur, shadowRight); - - int borderWidth = max(-outlineStyle->outlineOffset(), max(borderRight(), max(style()->borderTopRightRadius().width(), style()->borderBottomRightRadius().width()))) + max(ow, shadowRight); - IntRect rightRect(newOutlineBox.x() + min(newOutlineBox.width(), oldOutlineBox.width()) - borderWidth, - newOutlineBox.y(), - width + borderWidth, - max(newOutlineBox.height(), oldOutlineBox.height())); - int right = min(newBounds.right(), oldBounds.right()); - if (rightRect.x() < right) { - rightRect.setWidth(min(rightRect.width(), right - rightRect.x())); - v->repaintViewRectangle(rightRect); - } - } - int height = abs(newOutlineBox.height() - oldOutlineBox.height()); - if (height) { - int shadowBottom = 0; - for (ShadowData* shadow = boxShadow; shadow; shadow = shadow->next) - shadowBottom = max(shadow->y + shadow->blur, shadowBottom); - - int borderHeight = max(-outlineStyle->outlineOffset(), max(borderBottom(), max(style()->borderBottomLeftRadius().height(), style()->borderBottomRightRadius().height()))) + max(ow, shadowBottom); - IntRect bottomRect(newOutlineBox.x(), - min(newOutlineBox.bottom(), oldOutlineBox.bottom()) - borderHeight, - max(newOutlineBox.width(), oldOutlineBox.width()), - height + borderHeight); - int bottom = min(newBounds.bottom(), oldBounds.bottom()); - if (bottomRect.y() < bottom) { - bottomRect.setHeight(min(bottomRect.height(), bottom - bottomRect.y())); - v->repaintViewRectangle(bottomRect); - } - } - return false; -} - -void RenderObject::repaintDuringLayoutIfMoved(const IntRect& rect) -{ -} - -void RenderObject::repaintOverhangingFloats(bool paintAllDescendants) -{ -} - -bool RenderObject::checkForRepaintDuringLayout() const -{ - // FIXME: It is probably safe to also require - // m_everHadLayout. Currently, only RenderBlock::layoutBlock() adds this condition. See also - // . - return !document()->view()->needsFullRepaint() && !hasLayer(); -} - -IntRect RenderObject::getAbsoluteRepaintRectWithOutline(int ow) -{ - IntRect r(absoluteClippedOverflowRect()); - r.inflate(ow); - - if (continuation() && !isInline()) - r.inflateY(collapsedMarginTop()); - - if (isInlineFlow()) { - for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { - if (!curr->isText()) - r.unite(curr->getAbsoluteRepaintRectWithOutline(ow)); - } - } - - return r; -} - -IntRect RenderObject::absoluteClippedOverflowRect() -{ - if (parent()) - return parent()->absoluteClippedOverflowRect(); - return IntRect(); -} - -void RenderObject::computeAbsoluteRepaintRect(IntRect& rect, bool fixed) -{ - if (RenderObject* o = parent()) { - if (o->isBlockFlow()) { - RenderBlock* cb = static_cast(o); - if (cb->hasColumns()) - cb->adjustRectForColumns(rect); - } - - if (o->hasOverflowClip()) { - // o->height() is inaccurate if we're in the middle of a layout of |o|, so use the - // layer's size instead. Even if the layer's size is wrong, the layer itself will repaint - // anyway if its size does change. - IntRect boxRect(0, 0, o->layer()->width(), o->layer()->height()); - int x = rect.x(); - int y = rect.y(); - o->layer()->subtractScrollOffset(x, y); // For overflow:auto/scroll/hidden. - IntRect repaintRect(x, y, rect.width(), rect.height()); - rect = intersection(repaintRect, boxRect); - if (rect.isEmpty()) - return; - } - - o->computeAbsoluteRepaintRect(rect, fixed); - } -} - -void RenderObject::dirtyLinesFromChangedChild(RenderObject* child) -{ -} - -#ifndef NDEBUG - -void RenderObject::showTreeForThis() const -{ - if (element()) - element()->showTreeForThis(); -} - -#endif // NDEBUG - -Color RenderObject::selectionBackgroundColor() const -{ - Color color; - if (style()->userSelect() != SELECT_NONE) { - RenderStyle* pseudoStyle = getCachedPseudoStyle(RenderStyle::SELECTION); - if (pseudoStyle && pseudoStyle->backgroundColor().isValid()) - color = pseudoStyle->backgroundColor().blendWithWhite(); - else - color = document()->frame()->selection()->isFocusedAndActive() ? - theme()->activeSelectionBackgroundColor() : - theme()->inactiveSelectionBackgroundColor(); - } - - return color; -} - -Color RenderObject::selectionForegroundColor() const -{ - Color color; - if (style()->userSelect() == SELECT_NONE) - return color; - - if (RenderStyle* pseudoStyle = getCachedPseudoStyle(RenderStyle::SELECTION)) { - color = pseudoStyle->textFillColor(); - if (!color.isValid()) - color = pseudoStyle->color(); - } else - color = document()->frame()->selection()->isFocusedAndActive() ? - theme()->platformActiveSelectionForegroundColor() : - theme()->platformInactiveSelectionForegroundColor(); - - return color; -} - -Node* RenderObject::draggableNode(bool dhtmlOK, bool uaOK, int x, int y, bool& dhtmlWillDrag) const -{ - if (!dhtmlOK && !uaOK) - return 0; - - for (const RenderObject* curr = this; curr; curr = curr->parent()) { - Node* elt = curr->element(); - if (elt && elt->nodeType() == Node::TEXT_NODE) { - // Since there's no way for the author to address the -webkit-user-drag style for a text node, - // we use our own judgement. - if (uaOK && view()->frameView()->frame()->eventHandler()->shouldDragAutoNode(curr->node(), IntPoint(x, y))) { - dhtmlWillDrag = false; - return curr->node(); - } - if (elt->canStartSelection()) - // In this case we have a click in the unselected portion of text. If this text is - // selectable, we want to start the selection process instead of looking for a parent - // to try to drag. - return 0; - } else { - EUserDrag dragMode = curr->style()->userDrag(); - if (dhtmlOK && dragMode == DRAG_ELEMENT) { - dhtmlWillDrag = true; - return curr->node(); - } - if (uaOK && dragMode == DRAG_AUTO - && view()->frameView()->frame()->eventHandler()->shouldDragAutoNode(curr->node(), IntPoint(x, y))) { - dhtmlWillDrag = false; - return curr->node(); - } - } - } - return 0; -} - -void RenderObject::selectionStartEnd(int& spos, int& epos) const -{ - view()->selectionStartEnd(spos, epos); -} - -RenderBlock* RenderObject::createAnonymousBlock() -{ - RefPtr newStyle = RenderStyle::create(); - newStyle->inheritFrom(m_style.get()); - newStyle->setDisplay(BLOCK); - - RenderBlock* newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); - newBox->setStyle(newStyle.release()); - return newBox; -} - -void RenderObject::handleDynamicFloatPositionChange() -{ - // We have gone from not affecting the inline status of the parent flow to suddenly - // having an impact. See if there is a mismatch between the parent flow's - // childrenInline() state and our state. - setInline(style()->isDisplayInlineType()); - if (isInline() != parent()->childrenInline()) { - if (!isInline()) { - if (parent()->isRenderInline()) { - // We have to split the parent flow. - RenderInline* parentInline = static_cast(parent()); - RenderBlock* newBox = parentInline->createAnonymousBlock(); - - RenderFlow* oldContinuation = parent()->continuation(); - parentInline->setContinuation(newBox); - - RenderObject* beforeChild = nextSibling(); - parent()->removeChildNode(this); - parentInline->splitFlow(beforeChild, newBox, this, oldContinuation); - } else if (parent()->isRenderBlock()) { - RenderBlock* o = static_cast(parent()); - o->makeChildrenNonInline(); - if (o->isAnonymousBlock() && o->parent()) - o->parent()->removeLeftoverAnonymousBlock(o); - // o may be dead here - } - } else { - // An anonymous block must be made to wrap this inline. - RenderBlock* box = createAnonymousBlock(); - parent()->insertChildNode(box, this); - box->appendChildNode(parent()->removeChildNode(this)); - } - } -} - -void RenderObject::setAnimatableStyle(PassRefPtr style) -{ - if (!isText() && style) - setStyle(animation()->updateAnimations(this, style.get())); - else - setStyle(style); -} - -void RenderObject::setStyle(PassRefPtr style) -{ - if (m_style == style) - return; - - RenderStyle::Diff diff = RenderStyle::Equal; - if (m_style) - diff = m_style->diff(style.get()); - - // If we have no layer(), just treat a RepaintLayer hint as a normal Repaint. - if (diff == RenderStyle::RepaintLayer && !hasLayer()) - diff = RenderStyle::Repaint; - - styleWillChange(diff, style.get()); - - RefPtr oldStyle = m_style.release(); - m_style = style; - - updateFillImages(oldStyle ? oldStyle->backgroundLayers() : 0, m_style ? m_style->backgroundLayers() : 0); - updateFillImages(oldStyle ? oldStyle->maskLayers() : 0, m_style ? m_style->maskLayers() : 0); - - updateImage(oldStyle ? oldStyle->borderImage().image() : 0, m_style ? m_style->borderImage().image() : 0); - updateImage(oldStyle ? oldStyle->maskBoxImage().image() : 0, m_style ? m_style->maskBoxImage().image() : 0); - - styleDidChange(diff, oldStyle.get()); -} - -void RenderObject::setStyleInternal(PassRefPtr style) -{ - m_style = style; -} - -void RenderObject::styleWillChange(RenderStyle::Diff diff, const RenderStyle* newStyle) -{ - if (m_style) { - // If our z-index changes value or our visibility changes, - // we need to dirty our stacking context's z-order list. - if (newStyle) { -#if ENABLE(DASHBOARD_SUPPORT) - if (m_style->visibility() != newStyle->visibility() || - m_style->zIndex() != newStyle->zIndex() || - m_style->hasAutoZIndex() != newStyle->hasAutoZIndex()) - document()->setDashboardRegionsDirty(true); -#endif - - if ((m_style->hasAutoZIndex() != newStyle->hasAutoZIndex() || - m_style->zIndex() != newStyle->zIndex() || - m_style->visibility() != newStyle->visibility()) && hasLayer()) { - layer()->dirtyStackingContextZOrderLists(); - if (m_style->hasAutoZIndex() != newStyle->hasAutoZIndex() || - m_style->visibility() != newStyle->visibility()) - layer()->dirtyZOrderLists(); - } - // keep layer hierarchy visibility bits up to date if visibility changes - if (m_style->visibility() != newStyle->visibility()) { - if (RenderLayer* l = enclosingLayer()) { - if (newStyle->visibility() == VISIBLE) - l->setHasVisibleContent(true); - else if (l->hasVisibleContent() && (this == l->renderer() || l->renderer()->style()->visibility() != VISIBLE)) { - l->dirtyVisibleContentStatus(); - if (diff > RenderStyle::RepaintLayer) - repaint(); - } - } - } - } - - // The background of the root element or the body element could propagate up to - // the canvas. Just dirty the entire canvas when our style changes substantially. - if (diff >= RenderStyle::Repaint && element() && - (element()->hasTagName(htmlTag) || element()->hasTagName(bodyTag))) - view()->repaint(); - else if (m_parent && !isText()) { - // Do a repaint with the old style first, e.g., for example if we go from - // having an outline to not having an outline. - if (diff == RenderStyle::RepaintLayer) { - layer()->repaintIncludingDescendants(); - if (!(m_style->clip() == newStyle->clip())) - layer()->clearClipRects(); - } else if (diff == RenderStyle::Repaint || newStyle->outlineSize() < m_style->outlineSize()) - repaint(); - } - - // When a layout hint happens, we go ahead and do a repaint of the layer, since the layer could - // end up being destroyed. - if (diff == RenderStyle::Layout && hasLayer() && - (m_style->position() != newStyle->position() || - m_style->zIndex() != newStyle->zIndex() || - m_style->hasAutoZIndex() != newStyle->hasAutoZIndex() || - !(m_style->clip() == newStyle->clip()) || - m_style->hasClip() != newStyle->hasClip() || - m_style->opacity() != newStyle->opacity())) - layer()->repaintIncludingDescendants(); - - // When a layout hint happens and an object's position style changes, we have to do a layout - // to dirty the render tree using the old position value now. - if (diff == RenderStyle::Layout && m_parent && m_style->position() != newStyle->position()) { - markContainingBlocksForLayout(); - if (m_style->position() == StaticPosition) - repaint(); - if (isFloating() && !isPositioned() && (newStyle->position() == AbsolutePosition || newStyle->position() == FixedPosition)) - removeFromObjectLists(); - if (isRenderBlock()) { - if (newStyle->position() == StaticPosition) - // Clear our positioned objects list. Our absolutely positioned descendants will be - // inserted into our containing block's positioned objects list during layout. - removePositionedObjects(0); - else if (m_style->position() == StaticPosition) { - // Remove our absolutely positioned descendants from their current containing block. - // They will be inserted into our positioned objects list during layout. - RenderObject* cb = parent(); - while (cb && (cb->style()->position() == StaticPosition || (cb->isInline() && !cb->isReplaced())) && !cb->isRenderView()) { - if (cb->style()->position() == RelativePosition && cb->isInline() && !cb->isReplaced()) { - cb = cb->containingBlock(); - break; - } - cb = cb->parent(); - } - cb->removePositionedObjects(static_cast(this)); - } - } - } - - if (isFloating() && (m_style->floating() != newStyle->floating())) - // For changes in float styles, we need to conceivably remove ourselves - // from the floating objects list. - removeFromObjectLists(); - else if (isPositioned() && (newStyle->position() != AbsolutePosition && newStyle->position() != FixedPosition)) - // For changes in positioning styles, we need to conceivably remove ourselves - // from the positioned objects list. - removeFromObjectLists(); - - s_affectsParentBlock = isFloatingOrPositioned() && - (!newStyle->isFloating() && newStyle->position() != AbsolutePosition && newStyle->position() != FixedPosition) - && parent() && (parent()->isBlockFlow() || parent()->isInlineFlow()); - - // reset style flags - if (diff == RenderStyle::Layout || diff == RenderStyle::LayoutPositionedMovementOnly) { - m_floating = false; - m_positioned = false; - m_relPositioned = false; - } - m_paintBackground = false; - m_hasOverflowClip = false; - m_hasTransform = false; - m_hasReflection = false; - } else - s_affectsParentBlock = false; - - if (view()->frameView()) { - // FIXME: A better solution would be to only invalidate the fixed regions when scrolling. It's overkill to - // prevent the entire view from blitting on a scroll. - bool newStyleSlowScroll = newStyle && (newStyle->position() == FixedPosition || newStyle->hasFixedBackgroundImage()); - bool oldStyleSlowScroll = m_style && (m_style->position() == FixedPosition || m_style->hasFixedBackgroundImage()); - if (oldStyleSlowScroll != newStyleSlowScroll) { - if (oldStyleSlowScroll) - view()->frameView()->removeSlowRepaintObject(); - if (newStyleSlowScroll) - view()->frameView()->addSlowRepaintObject(); - } - } -} - -void RenderObject::styleDidChange(RenderStyle::Diff diff, const RenderStyle* oldStyle) -{ - setHasBoxDecorations(m_style->hasBorder() || m_style->hasBackground() || m_style->hasAppearance() || m_style->boxShadow()); - - if (s_affectsParentBlock) - handleDynamicFloatPositionChange(); - - // No need to ever schedule repaints from a style change of a text run, since - // we already did this for the parent of the text run. - // We do have to schedule layouts, though, since a style change can force us to - // need to relayout. - if (diff == RenderStyle::Layout && m_parent) - setNeedsLayoutAndPrefWidthsRecalc(); - else if (diff == RenderStyle::LayoutPositionedMovementOnly && m_parent && !isText()) - setNeedsPositionedMovementLayout(); - else if (m_parent && !isText() && (diff == RenderStyle::RepaintLayer || diff == RenderStyle::Repaint)) - // Do a repaint with the new style now, e.g., for example if we go from - // not having an outline to having an outline. - repaint(); -} - -void RenderObject::updateFillImages(const FillLayer* oldLayers, const FillLayer* newLayers) -{ - // FIXME: This will be slow when a large number of images is used. Fix by using a dict. - for (const FillLayer* currOld = oldLayers; currOld; currOld = currOld->next()) { - if (currOld->image() && (!newLayers || !newLayers->containsImage(currOld->image()))) - currOld->image()->removeClient(this); - } - for (const FillLayer* currNew = newLayers; currNew; currNew = currNew->next()) { - if (currNew->image() && (!oldLayers || !oldLayers->containsImage(currNew->image()))) - currNew->image()->addClient(this); - } -} - -void RenderObject::updateImage(StyleImage* oldImage, StyleImage* newImage) -{ - if (oldImage != newImage) { - if (oldImage) - oldImage->removeClient(this); - if (newImage) - newImage->addClient(this); - } -} - -IntRect RenderObject::viewRect() const -{ - return view()->viewRect(); -} - -bool RenderObject::absolutePosition(int& xPos, int& yPos, bool f) const -{ - RenderObject* o = parent(); - if (o) { - o->absolutePosition(xPos, yPos, f); - yPos += o->borderTopExtra(); - if (o->hasOverflowClip()) - o->layer()->subtractScrollOffset(xPos, yPos); - return true; - } else { - xPos = yPos = 0; - return false; - } -} - -IntRect RenderObject::caretRect(InlineBox* inlineBox, int caretOffset, int* extraWidthToEndOfLine) -{ - if (extraWidthToEndOfLine) - *extraWidthToEndOfLine = 0; - - return IntRect(); -} - -int RenderObject::paddingTop() const -{ - int w = 0; - Length padding = m_style->paddingTop(); - if (padding.isPercent()) - w = containingBlock()->availableWidth(); -#ifdef ANDROID_LAYOUT - // in SSR mode, we use ANDROID_SSR_MARGIN_PADDING for padding. - if (document()->settings()->layoutAlgorithm() == Settings::kLayoutSSR && - padding.calcMinValue(w) > ANDROID_SSR_MARGIN_PADDING) - return ANDROID_SSR_MARGIN_PADDING; -#endif - return padding.calcMinValue(w); -} - -int RenderObject::paddingBottom() const -{ - int w = 0; - Length padding = style()->paddingBottom(); - if (padding.isPercent()) - w = containingBlock()->availableWidth(); -#ifdef ANDROID_LAYOUT - // in SSR mode, we use ANDROID_SSR_MARGIN_PADDING for padding. - if (document()->settings()->layoutAlgorithm() == Settings::kLayoutSSR && - padding.calcMinValue(w) > ANDROID_SSR_MARGIN_PADDING) - return ANDROID_SSR_MARGIN_PADDING; -#endif - return padding.calcMinValue(w); -} - -int RenderObject::paddingLeft() const -{ - int w = 0; - Length padding = style()->paddingLeft(); - if (padding.isPercent()) - w = containingBlock()->availableWidth(); -#ifdef ANDROID_LAYOUT - // in SSR mode, we use ANDROID_SSR_MARGIN_PADDING for padding. - if (document()->settings()->layoutAlgorithm() == Settings::kLayoutSSR && - padding.calcMinValue(w) > ANDROID_SSR_MARGIN_PADDING) - return ANDROID_SSR_MARGIN_PADDING; -#endif - return padding.calcMinValue(w); -} - -int RenderObject::paddingRight() const -{ - int w = 0; - Length padding = style()->paddingRight(); - if (padding.isPercent()) - w = containingBlock()->availableWidth(); -#ifdef ANDROID_LAYOUT - // in SSR mode, we use ANDROID_SSR_MARGIN_PADDING for padding. - if (document()->settings()->layoutAlgorithm() == Settings::kLayoutSSR && - padding.calcMinValue(w) > ANDROID_SSR_MARGIN_PADDING) - return ANDROID_SSR_MARGIN_PADDING; -#endif - return padding.calcMinValue(w); -} - -RenderView* RenderObject::view() const -{ - return static_cast(document()->renderer()); -} - -bool RenderObject::hasOutlineAnnotation() const -{ - return element() && element()->isLink() && document()->printing(); -} - -RenderObject* RenderObject::container() const -{ - // This method is extremely similar to containingBlock(), but with a few notable - // exceptions. - // (1) It can be used on orphaned subtrees, i.e., it can be called safely even when - // the object is not part of the primary document subtree yet. - // (2) For normal flow elements, it just returns the parent. - // (3) For absolute positioned elements, it will return a relative positioned inline. - // containingBlock() simply skips relpositioned inlines and lets an enclosing block handle - // the layout of the positioned object. This does mean that calcAbsoluteHorizontal and - // calcAbsoluteVertical have to use container(). - RenderObject* o = parent(); - - if (isText()) - return o; - - EPosition pos = m_style->position(); - if (pos == FixedPosition) { - // container() can be called on an object that is not in the - // tree yet. We don't call view() since it will assert if it - // can't get back to the canvas. Instead we just walk as high up - // as we can. If we're in the tree, we'll get the root. If we - // aren't we'll get the root of our little subtree (most likely - // we'll just return 0). - while (o && o->parent() && !(o->hasTransform() && o->isRenderBlock())) - o = o->parent(); - } else if (pos == AbsolutePosition) { - // Same goes here. We technically just want our containing block, but - // we may not have one if we're part of an uninstalled subtree. We'll - // climb as high as we can though. - while (o && o->style()->position() == StaticPosition && !o->isRenderView() && !(o->hasTransform() && o->isRenderBlock())) - o = o->parent(); - } - - return o; -} - -// This code has been written to anticipate the addition of CSS3-::outside and ::inside generated -// content (and perhaps XBL). That's why it uses the render tree and not the DOM tree. -RenderObject* RenderObject::hoverAncestor() const -{ - return (!isInline() && continuation()) ? continuation() : parent(); -} - -bool RenderObject::isSelectionBorder() const -{ - SelectionState st = selectionState(); - return st == SelectionStart || st == SelectionEnd || st == SelectionBoth; -} - -void RenderObject::removeFromObjectLists() -{ - if (documentBeingDestroyed()) - return; - - if (isFloating()) { - RenderBlock* outermostBlock = containingBlock(); - for (RenderBlock* p = outermostBlock; p && !p->isRenderView(); p = p->containingBlock()) { - if (p->containsFloat(this)) - outermostBlock = p; - } - - if (outermostBlock) - outermostBlock->markAllDescendantsWithFloatsForLayout(this); - } - - if (isPositioned()) { - RenderObject* p; - for (p = parent(); p; p = p->parent()) { - if (p->isRenderBlock()) - static_cast(p)->removePositionedObject(this); - } - } -} - -bool RenderObject::documentBeingDestroyed() const -{ - return !document()->renderer(); -} - -void RenderObject::destroy() -{ - // If this renderer is being autoscrolled, stop the autoscroll timer - if (document()->frame() && document()->frame()->eventHandler()->autoscrollRenderer() == this) - document()->frame()->eventHandler()->stopAutoscrollTimer(true); - - if (m_hasCounterNodeMap) - RenderCounter::destroyCounterNodes(this); - - if (AXObjectCache::accessibilityEnabled()) - document()->axObjectCache()->remove(this); - - animation()->cancelAnimations(this); - - // By default no ref-counting. RenderWidget::destroy() doesn't call - // this function because it needs to do ref-counting. If anything - // in this function changes, be sure to fix RenderWidget::destroy() as well. - - remove(); - - RenderArena* arena = renderArena(); - - if (hasLayer()) - layer()->destroy(arena); - - arenaDelete(arena, this); -} - -void RenderObject::arenaDelete(RenderArena* arena, void* base) -{ - if (m_style) { - for (const FillLayer* bgLayer = m_style->backgroundLayers(); bgLayer; bgLayer = bgLayer->next()) { - if (StyleImage* backgroundImage = bgLayer->image()) - backgroundImage->removeClient(this); - } - - for (const FillLayer* maskLayer = m_style->maskLayers(); maskLayer; maskLayer = maskLayer->next()) { - if (StyleImage* maskImage = maskLayer->image()) - maskImage->removeClient(this); - } - - if (StyleImage* borderImage = m_style->borderImage().image()) - borderImage->removeClient(this); - - if (StyleImage* maskBoxImage = m_style->maskBoxImage().image()) - maskBoxImage->removeClient(this); - } - -#ifndef NDEBUG - void* savedBase = baseOfRenderObjectBeingDeleted; - baseOfRenderObjectBeingDeleted = base; -#endif - delete this; -#ifndef NDEBUG - baseOfRenderObjectBeingDeleted = savedBase; -#endif - - // Recover the size left there for us by operator delete and free the memory. - arena->free(*(size_t*)base, base); -} - -VisiblePosition RenderObject::positionForCoordinates(int x, int y) -{ - return VisiblePosition(element(), caretMinOffset(), DOWNSTREAM); -} - -void RenderObject::updateDragState(bool dragOn) -{ - bool valueChanged = (dragOn != m_isDragging); - m_isDragging = dragOn; - if (valueChanged && style()->affectedByDragRules()) - element()->setChanged(); - for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) - curr->updateDragState(dragOn); - if (continuation()) - continuation()->updateDragState(dragOn); -} - -bool RenderObject::hitTest(const HitTestRequest& request, HitTestResult& result, const IntPoint& point, int tx, int ty, HitTestFilter hitTestFilter) -{ - bool inside = false; - if (hitTestFilter != HitTestSelf) { - // First test the foreground layer (lines and inlines). - inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestForeground); - - // Test floats next. - if (!inside) - inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestFloat); - - // Finally test to see if the mouse is in the background (within a child block's background). - if (!inside) - inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestChildBlockBackgrounds); - } - - // See if the mouse is inside us but not any of our descendants - if (hitTestFilter != HitTestDescendants && !inside) - inside = nodeAtPoint(request, result, point.x(), point.y(), tx, ty, HitTestBlockBackground); - - return inside; -} - -void RenderObject::updateHitTestResult(HitTestResult& result, const IntPoint& point) -{ - if (result.innerNode()) - return; - - Node* node = element(); - IntPoint localPoint(point); - if (isRenderView()) - node = document()->documentElement(); - else if (!isInline() && continuation()) - // We are in the margins of block elements that are part of a continuation. In - // this case we're actually still inside the enclosing inline element that was - // split. Go ahead and set our inner node accordingly. - node = continuation()->element(); - - if (node) { - if (node->renderer() && node->renderer()->continuation() && node->renderer() != this) { - // We're in the continuation of a split inline. Adjust our local point to be in the coordinate space - // of the principal renderer's containing block. This will end up being the innerNonSharedNode. - RenderObject* firstBlock = node->renderer()->containingBlock(); - - // Get our containing block. - RenderObject* block = this; - if (isInline()) - block = containingBlock(); - - localPoint.move(block->xPos() - firstBlock->xPos(), block->yPos() - firstBlock->yPos()); - } - - result.setInnerNode(node); - if (!result.innerNonSharedNode()) - result.setInnerNonSharedNode(node); - result.setLocalPoint(localPoint); - } -} - -bool RenderObject::nodeAtPoint(const HitTestRequest&, HitTestResult&, int /*x*/, int /*y*/, int /*tx*/, int /*ty*/, HitTestAction) -{ - return false; -} - -int RenderObject::verticalPositionHint(bool firstLine) const -{ - if (firstLine) // We're only really a first-line style if the document actually uses first-line rules. - firstLine = document()->usesFirstLineRules(); - int vpos = m_verticalPosition; - if (m_verticalPosition == PositionUndefined || firstLine) { - vpos = getVerticalPosition(firstLine); - if (!firstLine) - m_verticalPosition = vpos; - } - - return vpos; -} - -int RenderObject::getVerticalPosition(bool firstLine) const -{ - if (!isInline()) - return 0; - - // This method determines the vertical position for inline elements. - int vpos = 0; - EVerticalAlign va = style()->verticalAlign(); - if (va == TOP) - vpos = PositionTop; - else if (va == BOTTOM) - vpos = PositionBottom; - else { - bool checkParent = parent()->isInline() && !parent()->isInlineBlockOrInlineTable() && parent()->style()->verticalAlign() != TOP && parent()->style()->verticalAlign() != BOTTOM; - vpos = checkParent ? parent()->verticalPositionHint(firstLine) : 0; - // don't allow elements nested inside text-top to have a different valignment. - if (va == BASELINE) - return vpos; - - const Font& f = parent()->style(firstLine)->font(); - int fontsize = f.pixelSize(); - - if (va == SUB) - vpos += fontsize / 5 + 1; - else if (va == SUPER) - vpos -= fontsize / 3 + 1; - else if (va == TEXT_TOP) - vpos += baselinePosition(firstLine) - f.ascent(); - else if (va == MIDDLE) - vpos += -static_cast(f.xHeight() / 2) - lineHeight(firstLine) / 2 + baselinePosition(firstLine); - else if (va == TEXT_BOTTOM) { - vpos += f.descent(); - if (!isReplaced()) - vpos -= style(firstLine)->font().descent(); - } else if (va == BASELINE_MIDDLE) - vpos += -lineHeight(firstLine) / 2 + baselinePosition(firstLine); - else if (va == LENGTH) - vpos -= style()->verticalAlignLength().calcValue(lineHeight(firstLine)); - } - - return vpos; -} - -int RenderObject::lineHeight(bool firstLine, bool /*isRootLineBox*/) const -{ - RenderStyle* s = style(firstLine); - - Length lh = s->lineHeight(); - - // its "unset", choose nice default - if (lh.isNegative()) - return s->font().lineSpacing(); - - if (lh.isPercent()) - return lh.calcMinValue(s->fontSize()); - - // its fixed - return lh.value(); -} - -int RenderObject::baselinePosition(bool firstLine, bool isRootLineBox) const -{ - const Font& f = style(firstLine)->font(); - return f.ascent() + (lineHeight(firstLine, isRootLineBox) - f.height()) / 2; -} - -void RenderObject::scheduleRelayout() -{ - if (isRenderView()) { - FrameView* view = static_cast(this)->frameView(); - if (view) - view->scheduleRelayout(); - } else if (parent()) { - FrameView* v = view() ? view()->frameView() : 0; - if (v) - v->scheduleRelayoutOfSubtree(this); - } -} - -void RenderObject::removeLeftoverAnonymousBlock(RenderBlock*) -{ -} - -InlineBox* RenderObject::createInlineBox(bool, bool isRootLineBox, bool) -{ - ASSERT(!isRootLineBox); - return new (renderArena()) InlineBox(this); -} - -void RenderObject::dirtyLineBoxes(bool, bool) -{ -} - -InlineBox* RenderObject::inlineBoxWrapper() const -{ - return 0; -} - -void RenderObject::setInlineBoxWrapper(InlineBox*) -{ -} - -void RenderObject::deleteLineBoxWrapper() -{ -} - -RenderStyle* RenderObject::firstLineStyle() const -{ - if (!document()->usesFirstLineRules()) - return m_style.get(); - - RenderStyle* s = m_style.get(); - const RenderObject* obj = isText() ? parent() : this; - if (obj->isBlockFlow()) { - RenderBlock* firstLineBlock = obj->firstLineBlock(); - if (firstLineBlock) - s = firstLineBlock->getCachedPseudoStyle(RenderStyle::FIRST_LINE, style()); - } else if (!obj->isAnonymous() && obj->isInlineFlow()) { - RenderStyle* parentStyle = obj->parent()->firstLineStyle(); - if (parentStyle != obj->parent()->style()) { - // A first-line style is in effect. We need to cache a first-line style - // for ourselves. - style()->setHasPseudoStyle(RenderStyle::FIRST_LINE_INHERITED); - s = obj->getCachedPseudoStyle(RenderStyle::FIRST_LINE_INHERITED, parentStyle); - } - } - return s; -} - -RenderStyle* RenderObject::getCachedPseudoStyle(RenderStyle::PseudoId pseudo, RenderStyle* parentStyle) const -{ - if (pseudo < RenderStyle::FIRST_INTERNAL_PSEUDOID && !style()->hasPseudoStyle(pseudo)) - return 0; - - RenderStyle* cachedStyle = style()->getCachedPseudoStyle(pseudo); - if (cachedStyle) - return cachedStyle; - - RefPtr result = getUncachedPseudoStyle(pseudo, parentStyle); - if (result) - return style()->addCachedPseudoStyle(result.release()); - return 0; -} - -PassRefPtr RenderObject::getUncachedPseudoStyle(RenderStyle::PseudoId pseudo, RenderStyle* parentStyle) const -{ - if (pseudo < RenderStyle::FIRST_INTERNAL_PSEUDOID && !style()->hasPseudoStyle(pseudo)) - return 0; - - if (!parentStyle) - parentStyle = style(); - - Node* node = element(); - while (node && !node->isElementNode()) - node = node->parentNode(); - if (!node) - return 0; - - RefPtr result; - if (pseudo == RenderStyle::FIRST_LINE_INHERITED) { - result = document()->styleSelector()->styleForElement(static_cast(node), parentStyle, false); - result->setStyleType(RenderStyle::FIRST_LINE_INHERITED); - } else - result = document()->styleSelector()->pseudoStyleForElement(pseudo, static_cast(node), parentStyle); - return result.release(); -} - -static Color decorationColor(RenderStyle* style) -{ - Color result; - if (style->textStrokeWidth() > 0) { - // Prefer stroke color if possible but not if it's fully transparent. - result = style->textStrokeColor(); - if (!result.isValid()) - result = style->color(); - if (result.alpha()) - return result; - } - - result = style->textFillColor(); - if (!result.isValid()) - result = style->color(); - return result; -} - -void RenderObject::getTextDecorationColors(int decorations, Color& underline, Color& overline, - Color& linethrough, bool quirksMode) -{ - RenderObject* curr = this; - do { - int currDecs = curr->style()->textDecoration(); - if (currDecs) { - if (currDecs & UNDERLINE) { - decorations &= ~UNDERLINE; - underline = decorationColor(curr->style()); - } - if (currDecs & OVERLINE) { - decorations &= ~OVERLINE; - overline = decorationColor(curr->style()); - } - if (currDecs & LINE_THROUGH) { - decorations &= ~LINE_THROUGH; - linethrough = decorationColor(curr->style()); - } - } - curr = curr->parent(); - if (curr && curr->isRenderBlock() && curr->continuation()) - curr = curr->continuation(); - } while (curr && decorations && (!quirksMode || !curr->element() || - (!curr->element()->hasTagName(aTag) && !curr->element()->hasTagName(fontTag)))); - - // If we bailed out, use the element we bailed out at (typically a or element). - if (decorations && curr) { - if (decorations & UNDERLINE) - underline = decorationColor(curr->style()); - if (decorations & OVERLINE) - overline = decorationColor(curr->style()); - if (decorations & LINE_THROUGH) - linethrough = decorationColor(curr->style()); - } -} - -void RenderObject::updateWidgetPosition() -{ -} - -#if ENABLE(DASHBOARD_SUPPORT) -void RenderObject::addDashboardRegions(Vector& regions) -{ - // Convert the style regions to absolute coordinates. - if (style()->visibility() != VISIBLE) - return; - - const Vector& styleRegions = style()->dashboardRegions(); - unsigned i, count = styleRegions.size(); - for (i = 0; i < count; i++) { - StyleDashboardRegion styleRegion = styleRegions[i]; - - int w = width(); - int h = height(); - - DashboardRegionValue region; - region.label = styleRegion.label; - region.bounds = IntRect(styleRegion.offset.left().value(), - styleRegion.offset.top().value(), - w - styleRegion.offset.left().value() - styleRegion.offset.right().value(), - h - styleRegion.offset.top().value() - styleRegion.offset.bottom().value()); - region.type = styleRegion.type; - - region.clip = region.bounds; - computeAbsoluteRepaintRect(region.clip); - if (region.clip.height() < 0) { - region.clip.setHeight(0); - region.clip.setWidth(0); - } - - int x, y; - absolutePosition(x, y); - region.bounds.setX(x + styleRegion.offset.left().value()); - region.bounds.setY(y + styleRegion.offset.top().value()); - - if (document()->frame()) { - float pageScaleFactor = document()->frame()->page()->chrome()->scaleFactor(); - if (pageScaleFactor != 1.0f) { - region.bounds.scale(pageScaleFactor); - region.clip.scale(pageScaleFactor); - } - } - - regions.append(region); - } -} - -void RenderObject::collectDashboardRegions(Vector& regions) -{ - // RenderTexts don't have their own style, they just use their parent's style, - // so we don't want to include them. - if (isText()) - return; - - addDashboardRegions(regions); - for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) - curr->collectDashboardRegions(regions); -} -#endif - -bool RenderObject::avoidsFloats() const -{ - return isReplaced() || hasOverflowClip() || isHR(); -} - -bool RenderObject::shrinkToAvoidFloats() const -{ - // FIXME: Technically we should be able to shrink replaced elements on a line, but this is difficult to accomplish, since this - // involves doing a relayout during findNextLineBreak and somehow overriding the containingBlockWidth method to return the - // current remaining width on a line. - if (isInline() && !isHTMLMarquee() || !avoidsFloats()) - return false; - - // All auto-width objects that avoid floats should always use lineWidth. - return style()->width().isAuto(); -} - -UChar RenderObject::backslashAsCurrencySymbol() const -{ - if (Node *node = element()) { - if (TextResourceDecoder* decoder = node->document()->decoder()) - return decoder->encoding().backslashAsCurrencySymbol(); - } - return '\\'; -} - -bool RenderObject::willRenderImage(CachedImage*) -{ - // Without visibility we won't render (and therefore don't care about animation). - if (style()->visibility() != VISIBLE) - return false; - - // If we're not in a window (i.e., we're dormant from being put in the b/f cache or in a background tab) - // then we don't want to render either. - return !document()->inPageCache() && !document()->view()->isOffscreen(); -} - -int RenderObject::maximalOutlineSize(PaintPhase p) const -{ - if (p != PaintPhaseOutline && p != PaintPhaseSelfOutline && p != PaintPhaseChildOutlines) - return 0; - return static_cast(document()->renderer())->maximalOutlineSize(); -} - -int RenderObject::caretMinOffset() const -{ - return 0; -} - -int RenderObject::caretMaxOffset() const -{ - if (isReplaced()) - return element() ? max(1U, element()->childNodeCount()) : 1; - if (isHR()) - return 1; - return 0; -} - -unsigned RenderObject::caretMaxRenderedOffset() const -{ - return 0; -} - -int RenderObject::previousOffset(int current) const -{ - return current - 1; -} - -int RenderObject::nextOffset(int current) const -{ - return current + 1; -} - -int RenderObject::maxTopMargin(bool positive) const -{ - return positive ? max(0, marginTop()) : -min(0, marginTop()); -} - -int RenderObject::maxBottomMargin(bool positive) const -{ - return positive ? max(0, marginBottom()) : -min(0, marginBottom()); -} - -IntRect RenderObject::contentBox() const -{ - return IntRect(borderLeft() + paddingLeft(), borderTop() + paddingTop(), - contentWidth(), contentHeight()); -} - -IntRect RenderObject::absoluteContentBox() const -{ - IntRect rect = contentBox(); - int x, y; - absolutePositionForContent(x, y); - rect.move(x, y); - return rect; -} - -void RenderObject::adjustRectForOutlineAndShadow(IntRect& rect) const -{ - int outlineSize = !isInline() && continuation() ? continuation()->style()->outlineSize() : style()->outlineSize(); - if (ShadowData* boxShadow = style()->boxShadow()) { - int shadowLeft = 0; - int shadowRight = 0; - int shadowTop = 0; - int shadowBottom = 0; - - do { - shadowLeft = min(boxShadow->x - boxShadow->blur - outlineSize, shadowLeft); - shadowRight = max(boxShadow->x + boxShadow->blur + outlineSize, shadowRight); - shadowTop = min(boxShadow->y - boxShadow->blur - outlineSize, shadowTop); - shadowBottom = max(boxShadow->y + boxShadow->blur + outlineSize, shadowBottom); - - boxShadow = boxShadow->next; - } while (boxShadow); - - rect.move(shadowLeft, shadowTop); - rect.setWidth(rect.width() - shadowLeft + shadowRight); - rect.setHeight(rect.height() - shadowTop + shadowBottom); - } else - rect.inflate(outlineSize); -} - -IntRect RenderObject::absoluteOutlineBox() const -{ - IntRect box = borderBox(); - int x, y; - absolutePosition(x, y); - box.move(x, y); - box.move(view()->layoutDelta()); - adjustRectForOutlineAndShadow(box); - return box; -} - -bool RenderObject::isScrollable() const -{ - RenderLayer* l = enclosingLayer(); - return l && (l->verticalScrollbar() || l->horizontalScrollbar()); -} - -AnimationController* RenderObject::animation() const -{ - return document()->frame()->animation(); -} - -void RenderObject::imageChanged(CachedImage* image) -{ - imageChanged(static_cast(image)); -} - -IntRect RenderObject::reflectionBox() const -{ - IntRect result; - if (!m_style->boxReflect()) - return result; - IntRect box = borderBox(); - result = box; - switch (m_style->boxReflect()->direction()) { - case ReflectionBelow: - result.move(0, box.height() + reflectionOffset()); - break; - case ReflectionAbove: - result.move(0, -box.height() - reflectionOffset()); - break; - case ReflectionLeft: - result.move(-box.width() - reflectionOffset(), 0); - break; - case ReflectionRight: - result.move(box.width() + reflectionOffset(), 0); - break; - } - return result; -} - -int RenderObject::reflectionOffset() const -{ - if (!m_style->boxReflect()) - return 0; - if (m_style->boxReflect()->direction() == ReflectionLeft || m_style->boxReflect()->direction() == ReflectionRight) - return m_style->boxReflect()->offset().calcValue(borderBox().width()); - return m_style->boxReflect()->offset().calcValue(borderBox().height()); -} - -#if ENABLE(SVG) - -FloatRect RenderObject::relativeBBox(bool) const -{ - return FloatRect(); -} - -AffineTransform RenderObject::localTransform() const -{ - return AffineTransform(1, 0, 0, 1, xPos(), yPos()); -} - -AffineTransform RenderObject::absoluteTransform() const -{ - if (parent()) - return localTransform() * parent()->absoluteTransform(); - return localTransform(); -} - -#endif // ENABLE(SVG) - -} // namespace WebCore - -#ifndef NDEBUG - -void showTree(const WebCore::RenderObject* ro) -{ - if (ro) - ro->showTreeForThis(); -} - -#endif -- cgit v1.1