Home | History | Annotate | Download | only in android 
      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/android/favicon_helper.h"
      6 
      7 #include <jni.h>
      8 
      9 #include "base/android/jni_android.h"
     10 #include "base/android/jni_string.h"
     11 #include "base/android/scoped_java_ref.h"
     12 #include "base/bind.h"
     13 #include "chrome/browser/favicon/favicon_service.h"
     14 #include "chrome/browser/favicon/favicon_service_factory.h"
     15 #include "chrome/browser/profiles/profile.h"
     16 #include "chrome/browser/profiles/profile_android.h"
     17 #include "jni/FaviconHelper_jni.h"
     18 #include "third_party/skia/include/core/SkBitmap.h"
     19 #include "ui/gfx/android/java_bitmap.h"
     20 
     21 using base::android::ScopedJavaGlobalRef;
     22 using base::android::ScopedJavaLocalRef;
     23 using base::android::AttachCurrentThread;
     24 using base::android::ConvertJavaStringToUTF16;
     25 using base::android::ConvertUTF8ToJavaString;
     26 using base::android::MethodID;
     27 
     28 namespace {
     29 
     30 void FaviconImageCallback(
     31     ScopedJavaGlobalRef<jobject>* java_favicon_image_callback,
     32     const chrome::FaviconImageResult& favicon_image_result) {
     33   JNIEnv* env = AttachCurrentThread();
     34 
     35   // Convert favicon_image_result to java objects.
     36   ScopedJavaLocalRef<jstring> java_icon_url = ConvertUTF8ToJavaString(
     37       env, favicon_image_result.icon_url.spec());
     38   SkBitmap favicon_bitmap = favicon_image_result.image.AsBitmap();
     39   ScopedJavaLocalRef<jobject> java_favicon_bitmap;
     40   if (!favicon_bitmap.isNull()) {
     41     java_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
     42   }
     43 
     44   // Call java side FaviconImageCallback method.
     45   Java_FaviconImageCallback_onFaviconAvailable(
     46       env, java_favicon_image_callback->obj(), java_favicon_bitmap.obj(),
     47       java_icon_url.obj());
     48 }
     49 
     50 }  // namespace
     51 
     52 static jint Init(JNIEnv* env, jclass clazz) {
     53   return reinterpret_cast<jint>(new FaviconHelper());
     54 }
     55 
     56 FaviconHelper::FaviconHelper() {
     57   cancelable_task_tracker_.reset(new CancelableTaskTracker());
     58 }
     59 
     60 void FaviconHelper::Destroy(JNIEnv* env, jobject obj) {
     61   delete this;
     62 }
     63 
     64 jboolean FaviconHelper::GetFaviconImageForURL(
     65     JNIEnv* env, jobject obj, jobject jprofile, jstring page_url,
     66     jint icon_types, jint desired_size_in_dip,
     67     jobject java_favicon_image_callback) {
     68   Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
     69   DCHECK(profile);
     70   if (!profile)
     71     return false;
     72 
     73   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
     74       profile, Profile::EXPLICIT_ACCESS);
     75   DCHECK(favicon_service);
     76   if (!favicon_service)
     77     return false;
     78 
     79   FaviconService::FaviconForURLParams params(
     80       profile, GURL(ConvertJavaStringToUTF16(env, page_url)),
     81       static_cast<int>(icon_types), static_cast<int>(desired_size_in_dip));
     82 
     83   ScopedJavaGlobalRef<jobject>* j_scoped_favicon_callback =
     84       new ScopedJavaGlobalRef<jobject>();
     85   j_scoped_favicon_callback->Reset(env, java_favicon_image_callback);
     86 
     87   FaviconService::FaviconImageCallback callback_runner = base::Bind(
     88       &FaviconImageCallback, base::Owned(j_scoped_favicon_callback));
     89 
     90   favicon_service->GetFaviconImageForURL(
     91       params, callback_runner,
     92       cancelable_task_tracker_.get());
     93 
     94   return true;
     95 }
     96 
     97 FaviconHelper::~FaviconHelper() {
     98 }
     99 
    100 // static
    101 bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
    102   return RegisterNativesImpl(env);
    103 }
    104