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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/android/favicon_helper.h"
#include <jni.h>
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/android/scoped_java_ref.h"
#include "base/bind.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/favicon/favicon_service.h"
#include "chrome/browser/favicon/favicon_service_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_android.h"
#include "chrome/browser/sync/open_tabs_ui_delegate.h"
#include "chrome/browser/sync/profile_sync_service.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "jni/FaviconHelper_jni.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/android/java_bitmap.h"
#include "ui/gfx/color_analysis.h"
#include "ui/gfx/color_utils.h"
using base::android::ScopedJavaGlobalRef;
using base::android::ScopedJavaLocalRef;
using base::android::AttachCurrentThread;
using base::android::ConvertJavaStringToUTF16;
using base::android::ConvertJavaStringToUTF8;
using base::android::ConvertUTF8ToJavaString;
namespace {
void OnLocalFaviconAvailable(
ScopedJavaGlobalRef<jobject>* j_favicon_image_callback,
const chrome::FaviconImageResult& favicon_image_result) {
JNIEnv* env = AttachCurrentThread();
// Convert favicon_image_result to java objects.
ScopedJavaLocalRef<jstring> j_icon_url =
ConvertUTF8ToJavaString(env, favicon_image_result.icon_url.spec());
SkBitmap favicon_bitmap = favicon_image_result.image.AsBitmap();
ScopedJavaLocalRef<jobject> j_favicon_bitmap;
if (!favicon_bitmap.isNull())
j_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
// Call java side OnLocalFaviconAvailable method.
Java_FaviconImageCallback_onFaviconAvailable(env,
j_favicon_image_callback->obj(),
j_favicon_bitmap.obj(),
j_icon_url.obj());
}
} // namespace
static jlong Init(JNIEnv* env, jclass clazz) {
return reinterpret_cast<intptr_t>(new FaviconHelper());
}
FaviconHelper::FaviconHelper() {
cancelable_task_tracker_.reset(new base::CancelableTaskTracker());
}
void FaviconHelper::Destroy(JNIEnv* env, jobject obj) {
delete this;
}
jboolean FaviconHelper::GetLocalFaviconImageForURL(
JNIEnv* env,
jobject obj,
jobject j_profile,
jstring j_page_url,
jint j_icon_types,
jint j_desired_size_in_dip,
jobject j_favicon_image_callback) {
Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
DCHECK(profile);
if (!profile)
return false;
FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
profile, Profile::EXPLICIT_ACCESS);
DCHECK(favicon_service);
if (!favicon_service)
return false;
FaviconService::FaviconForURLParams params(
GURL(ConvertJavaStringToUTF16(env, j_page_url)),
static_cast<int>(j_icon_types),
static_cast<int>(j_desired_size_in_dip));
ScopedJavaGlobalRef<jobject>* j_scoped_favicon_callback =
new ScopedJavaGlobalRef<jobject>();
j_scoped_favicon_callback->Reset(env, j_favicon_image_callback);
FaviconService::FaviconImageCallback callback_runner = base::Bind(
&OnLocalFaviconAvailable, base::Owned(j_scoped_favicon_callback));
favicon_service->GetFaviconImageForURL(
params, callback_runner,
cancelable_task_tracker_.get());
return true;
}
ScopedJavaLocalRef<jobject> FaviconHelper::GetSyncedFaviconImageForURL(
JNIEnv* env,
jobject obj,
jobject jprofile,
jstring j_page_url) {
Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
DCHECK(profile);
std::string page_url = ConvertJavaStringToUTF8(env, j_page_url);
ProfileSyncService* sync_service =
ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
DCHECK(sync_service);
scoped_refptr<base::RefCountedMemory> favicon_png;
browser_sync::OpenTabsUIDelegate* open_tabs =
sync_service->GetOpenTabsUIDelegate();
DCHECK(open_tabs);
if (!open_tabs->GetSyncedFaviconForPageURL(page_url, &favicon_png))
return ScopedJavaLocalRef<jobject>();
// Convert favicon_image_result to java objects.
gfx::Image favicon_image = gfx::Image::CreateFrom1xPNGBytes(favicon_png);
SkBitmap favicon_bitmap = favicon_image.AsBitmap();
ScopedJavaLocalRef<jobject> j_favicon_bitmap;
if (favicon_bitmap.isNull())
return ScopedJavaLocalRef<jobject>();
return gfx::ConvertToJavaBitmap(&favicon_bitmap);
}
FaviconHelper::~FaviconHelper() {}
static jint GetDominantColorForBitmap(JNIEnv* env,
jclass clazz,
jobject bitmap) {
if (!bitmap)
return 0;
gfx::JavaBitmap bitmap_lock(bitmap);
SkBitmap skbitmap = gfx::CreateSkBitmapFromJavaBitmap(bitmap_lock);
return color_utils::CalculateKMeanColorOfBitmap(skbitmap);
}
// static
bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
return RegisterNativesImpl(env);
}
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