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/*
* Copyright 2012, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define LOG_TAG "AndroidHitTestResult"
#include "config.h"
#include "AndroidHitTestResult.h"
#include "content/address_detector.h"
#include "content/PhoneEmailDetector.h"
#include "android/WebHitTestInfo.h"
#include "Document.h"
#include "Element.h"
#include "Frame.h"
#include "HitTestResult.h"
#include "KURL.h"
#include "LayerAndroid.h"
#include "PlatformString.h"
#include "Range.h"
#include "RenderLayer.h"
#include "RenderLayerBacking.h"
#include "RenderObject.h"
#include "WebCoreJni.h"
#include "WebViewCore.h"
#include <cutils/log.h>
#include <JNIHelp.h>
#include <JNIUtility.h>
namespace android {
using namespace WebCore;
static bool gJniInitialized = false;
static struct {
jmethodID m_Init;
jfieldID m_LinkUrl;
jfieldID m_AnchorText;
jfieldID m_ImageUrl;
jfieldID m_AltDisplayString;
jfieldID m_Title;
jfieldID m_Editable;
jfieldID m_TouchRects;
jfieldID m_TapHighlightColor;
jfieldID m_EnclosingParentRects;
jfieldID m_HasFocus;
jfieldID m_IntentUrl;
} gHitTestGlue;
struct field {
jclass m_class;
const char *m_fieldName;
const char *m_fieldType;
jfieldID *m_jfield;
};
static void InitJni(JNIEnv* env)
{
if (gJniInitialized)
return;
jclass rectClass = env->FindClass("android/graphics/Rect");
ALOG_ASSERT(rectClass, "Could not find android/graphics/Rect");
jclass hitTestClass = env->FindClass("android/webkit/WebViewCore$WebKitHitTest");
ALOG_ASSERT(hitTestClass, "Could not find android/webkit/WebViewCore$WebKitHitTest");
gHitTestGlue.m_Init = env->GetMethodID(hitTestClass, "<init>", "()V");
ALOG_ASSERT(gHitTestGlue.m_Init, "Could not find init method on android/webkit/WebViewCore$WebKitHitTest");
field fields[] = {
{ hitTestClass, "mTouchRects", "[Landroid/graphics/Rect;", &gHitTestGlue.m_TouchRects },
{ hitTestClass, "mEditable", "Z", &gHitTestGlue.m_Editable },
{ hitTestClass, "mLinkUrl", "Ljava/lang/String;", &gHitTestGlue.m_LinkUrl },
{ hitTestClass, "mIntentUrl", "Ljava/lang/String;", &gHitTestGlue.m_IntentUrl },
{ hitTestClass, "mAnchorText", "Ljava/lang/String;", &gHitTestGlue.m_AnchorText },
{ hitTestClass, "mImageUrl", "Ljava/lang/String;", &gHitTestGlue.m_ImageUrl },
{ hitTestClass, "mAltDisplayString", "Ljava/lang/String;", &gHitTestGlue.m_AltDisplayString },
{ hitTestClass, "mTitle", "Ljava/lang/String;", &gHitTestGlue.m_Title },
{ hitTestClass, "mTapHighlightColor", "I", &gHitTestGlue.m_TapHighlightColor },
{ hitTestClass, "mEnclosingParentRects", "[Landroid/graphics/Rect;", &gHitTestGlue.m_EnclosingParentRects },
{ hitTestClass, "mHasFocus", "Z", &gHitTestGlue.m_HasFocus },
{0, 0, 0, 0},
};
for (int i = 0; fields[i].m_jfield; i++) {
field *f = &fields[i];
jfieldID field = env->GetFieldID(f->m_class, f->m_fieldName, f->m_fieldType);
ALOG_ASSERT(field, "Can't find %s", f->m_fieldName);
*(f->m_jfield) = field;
}
gJniInitialized = true;
}
AndroidHitTestResult::AndroidHitTestResult(WebViewCore* webViewCore, WebCore::HitTestResult& hitTestResult)
: m_webViewCore(webViewCore)
, m_hitTestResult(hitTestResult)
{
buildHighlightRects();
}
void AndroidHitTestResult::setURLElement(Element* element)
{
m_hitTestResult.setURLElement(element);
buildHighlightRects();
}
void AndroidHitTestResult::buildHighlightRects()
{
m_highlightRects.clear();
Node* node = m_hitTestResult.URLElement();
if (!node || !node->renderer())
node = m_hitTestResult.innerNode();
if (!node || !node->renderer())
return;
if (!WebViewCore::nodeIsClickableOrFocusable(node))
return;
Frame* frame = node->document()->frame();
IntPoint frameOffset = m_webViewCore->convertGlobalContentToFrameContent(IntPoint(), frame);
RenderObject* renderer = node->renderer();
Vector<FloatQuad> quads;
if (renderer->isInline())
renderer->absoluteFocusRingQuads(quads);
if (!quads.size())
renderer->absoluteQuads(quads); // No fancy rings, grab a bounding box
for (size_t i = 0; i < quads.size(); i++) {
IntRect boundingBox = quads[i].enclosingBoundingBox();
boundingBox.move(-frameOffset.x(), -frameOffset.y());
m_highlightRects.append(boundingBox);
}
}
void AndroidHitTestResult::searchContentDetectors()
{
AddressDetector address;
PhoneEmailDetector phoneEmail;
Node* node = m_hitTestResult.innerNode();
if (!node || !node->isTextNode())
return;
if (!m_hitTestResult.absoluteLinkURL().isEmpty())
return;
WebKit::WebHitTestInfo webHitTest(m_hitTestResult);
m_searchResult = address.FindTappedContent(webHitTest);
if (!m_searchResult.valid) {
m_searchResult = phoneEmail.FindTappedContent(webHitTest);
}
if (m_searchResult.valid) {
m_highlightRects.clear();
RefPtr<Range> range = (PassRefPtr<Range>) m_searchResult.range;
range->textRects(m_highlightRects, true);
}
}
void setStringField(JNIEnv* env, jobject obj, jfieldID field, const String& str)
{
jstring jstr = wtfStringToJstring(env, str, false);
env->SetObjectField(obj, field, jstr);
env->DeleteLocalRef(jstr);
}
void setStringField(JNIEnv* env, jobject obj, jfieldID field, const GURL& url)
{
jstring jstr = stdStringToJstring(env, url.spec(), false);
env->SetObjectField(obj, field, jstr);
env->DeleteLocalRef(jstr);
}
void setRectArray(JNIEnv* env, jobject obj, jfieldID field, Vector<IntRect> &rects)
{
jobjectArray array = intRectVectorToRectArray(env, rects);
env->SetObjectField(obj, field, array);
env->DeleteLocalRef(array);
}
// Some helper macros specific to setting hitTest fields
#define _SET(jtype, jfield, value) env->Set ## jtype ## Field(hitTest, gHitTestGlue.m_ ## jfield, value)
#define SET_BOOL(jfield, value) _SET(Boolean, jfield, value)
#define SET_STRING(jfield, value) setStringField(env, hitTest, gHitTestGlue.m_ ## jfield, value)
#define SET_INT(jfield, value) _SET(Int, jfield, value)
jobject AndroidHitTestResult::createJavaObject(JNIEnv* env)
{
InitJni(env);
jclass hitTestClass = env->FindClass("android/webkit/WebViewCore$WebKitHitTest");
ALOG_ASSERT(hitTestClass, "Could not find android/webkit/WebViewCore$WebKitHitTest");
jobject hitTest = env->NewObject(hitTestClass, gHitTestGlue.m_Init);
setRectArray(env, hitTest, gHitTestGlue.m_TouchRects, m_highlightRects);
Vector<IntRect> rects = enclosingParentRects(m_hitTestResult.innerNode());
setRectArray(env, hitTest, gHitTestGlue.m_EnclosingParentRects, rects);
SET_BOOL(Editable, m_hitTestResult.isContentEditable());
SET_STRING(LinkUrl, m_hitTestResult.absoluteLinkURL().string());
if (m_searchResult.valid)
SET_STRING(IntentUrl, m_searchResult.intent_url);
SET_STRING(ImageUrl, m_hitTestResult.absoluteImageURL().string());
SET_STRING(AltDisplayString, m_hitTestResult.altDisplayString());
TextDirection titleTextDirection;
SET_STRING(Title, m_hitTestResult.title(titleTextDirection));
if (m_hitTestResult.URLElement()) {
Element* urlElement = m_hitTestResult.URLElement();
SET_STRING(AnchorText, urlElement->innerText());
if (urlElement->renderer()) {
SET_INT(TapHighlightColor,
urlElement->renderer()->style()->tapHighlightColor().rgb());
}
}
Node* focusedNode = m_webViewCore->focusedFrame()->document()->focusedNode();
SET_BOOL(HasFocus,
focusedNode == m_hitTestResult.URLElement()
|| focusedNode == m_hitTestResult.innerNode()
|| focusedNode == m_hitTestResult.innerNonSharedNode());
env->DeleteLocalRef(hitTestClass);
return hitTest;
}
Vector<IntRect> AndroidHitTestResult::enclosingParentRects(Node* node)
{
int count = 0;
int lastX = 0;
Vector<IntRect> rects;
while (node && count < 5) {
RenderObject* render = node->renderer();
if (!render || render->isBody())
break;
IntPoint frameOffset = m_webViewCore->convertGlobalContentToFrameContent(IntPoint(),
node->document()->frame());
IntRect rect = render->absoluteBoundingBoxRect();
rect.move(-frameOffset.x(), -frameOffset.y());
if (count == 0 || rect.x() != lastX) {
rects.append(rect);
lastX = rect.x();
count++;
}
node = node->parentNode();
}
return rects;
}
} /* namespace android */
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