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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 "Element.h"
#include "HitTestResult.h"
#include "KURL.h"
#include "PlatformString.h"
#include "WebCoreJni.h"
#include <JNIHelp.h>
#include <JNIUtility.h>
namespace android {
using namespace WebCore;
static bool gJniInitialized = false;
static struct JavaGlue {
jmethodID m_rectInit;
jmethodID m_hitTestInit;
jfieldID m_hitTestLinkUrl;
jfieldID m_hitTestAnchorText;
jfieldID m_hitTestImageUrl;
jfieldID m_hitTestAltDisplayString;
jfieldID m_hitTestTitle;
jfieldID m_hitTestEditable;
jfieldID m_hitTestTouchRects;
} gJavaGlue;
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");
gJavaGlue.m_rectInit = env->GetMethodID(rectClass, "<init>", "(IIII)V");
ALOG_ASSERT(gJavaGlue.m_rectInit, "Could not find init method on Rect");
gJavaGlue.m_hitTestInit = env->GetMethodID(hitTestClass, "<init>", "()V");
ALOG_ASSERT(gJavaGlue.m_hitTestInit, "Could not find init method on android/webkit/WebViewCore$WebKitHitTest");
field fields[] = {
{ hitTestClass, "mTouchRects", "[Landroid/graphics/Rect;", &gJavaGlue.m_hitTestTouchRects },
{ hitTestClass, "mEditable", "Z", &gJavaGlue.m_hitTestEditable },
{ hitTestClass, "mLinkUrl", "Ljava/lang/String;", &gJavaGlue.m_hitTestLinkUrl },
{ hitTestClass, "mAnchorText", "Ljava/lang/String;", &gJavaGlue.m_hitTestAnchorText },
{ hitTestClass, "mImageUrl", "Ljava/lang/String;", &gJavaGlue.m_hitTestImageUrl },
{ hitTestClass, "mAltDisplayString", "Ljava/lang/String;", &gJavaGlue.m_hitTestAltDisplayString },
{ hitTestClass, "mTitle", "Ljava/lang/String;", &gJavaGlue.m_hitTestTitle },
{0, 0, 0, 0},
};
for (int i = 0; fields[i].m_jfield; i++) {
field *f = &fields[i];
jfieldID field = env->GetFieldID(f->m_class, f->m_fieldName, f->m_fieldType);
ALOG_ASSERT(field, "Can't find %s", f->m_fieldName);
*(f->m_jfield) = field;
}
gJniInitialized = true;
}
AndroidHitTestResult::AndroidHitTestResult(WebCore::HitTestResult& hitTestResult)
: m_hitTestResult(hitTestResult)
{
}
void setStringField(JNIEnv* env, jobject obj, jfieldID field, const String& str)
{
jstring jstr = wtfStringToJstring(env, str, false);
env->SetObjectField(obj, field, jstr);
env->DeleteLocalRef(jstr);
}
// Some helper macros specific to setting hitTest fields
#define _SET(jtype, jfield, value) env->Set ## jtype ## Field(hitTest, gJavaGlue.m_hitTest ## jfield, value)
#define SET_BOOL(jfield, value) _SET(Boolean, jfield, value)
#define SET_STRING(jfield, value) setStringField(env, hitTest, gJavaGlue.m_hitTest ## jfield, value)
jobject AndroidHitTestResult::createJavaObject(JNIEnv* env)
{
InitJni(env);
jclass rectClass = env->FindClass("android/graphics/Rect");
ALOG_ASSERT(rectClass, "Could not find android/graphics/Rect");
jclass hitTestClass = env->FindClass("android/webkit/WebViewCore$WebKitHitTest");
ALOG_ASSERT(hitTestClass, "Could not find android/webkit/WebViewCore$WebKitHitTest");
jobjectArray array = env->NewObjectArray(m_highlightRects.size(), rectClass, 0);
ALOG_ASSERT(array, "Could not create a Rect array");
for (size_t i = 0; i < m_highlightRects.size(); i++) {
jobject rect = env->NewObject(rectClass, gJavaGlue.m_rectInit,
m_highlightRects[i].x(), m_highlightRects[i].y(),
m_highlightRects[i].maxX(), m_highlightRects[i].maxY());
if (rect) {
env->SetObjectArrayElement(array, i, rect);
env->DeleteLocalRef(rect);
}
}
TextDirection titleTextDirection;
jobject hitTest = env->NewObject(hitTestClass, gJavaGlue.m_hitTestInit);
env->SetObjectField(hitTest, gJavaGlue.m_hitTestTouchRects, array);
SET_BOOL(Editable, m_hitTestResult.isContentEditable());
SET_STRING(LinkUrl, m_hitTestResult.absoluteLinkURL().string());
SET_STRING(ImageUrl, m_hitTestResult.absoluteImageURL().string());
SET_STRING(AltDisplayString, m_hitTestResult.altDisplayString());
SET_STRING(Title, m_hitTestResult.title(titleTextDirection));
if (m_hitTestResult.URLElement())
SET_STRING(AnchorText, m_hitTestResult.URLElement()->innerText());
return hitTest;
}
} /* namespace android */
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