chrome/browser/android/favicon_helper.cc

   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_array.h"
  11 #include "base/android/jni_string.h"
  12 #include "base/android/scoped_java_ref.h"
  13 #include "base/bind.h"
  14 #include "base/strings/string_util.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "chrome/browser/favicon/favicon_service.h"
  17 #include "chrome/browser/favicon/favicon_service_factory.h"
  18 #include "chrome/browser/profiles/profile.h"
  19 #include "chrome/browser/profiles/profile_android.h"
  20 #include "chrome/browser/sync/open_tabs_ui_delegate.h"
  21 #include "chrome/browser/sync/profile_sync_service.h"
  22 #include "chrome/browser/sync/profile_sync_service_factory.h"
  23 #include "chrome/browser/sync/profile_sync_service_factory.h"
  24 #include "jni/FaviconHelper_jni.h"
  25 #include "third_party/skia/include/core/SkBitmap.h"
  26 #include "ui/gfx/android/java_bitmap.h"
  27 #include "ui/gfx/codec/png_codec.h"
  28 #include "ui/gfx/color_analysis.h"
  29 #include "ui/gfx/color_utils.h"
  30
  31 using base::android::ScopedJavaGlobalRef;
  32 using base::android::ScopedJavaLocalRef;
  33 using base::android::AttachCurrentThread;
  34 using base::android::ConvertJavaStringToUTF16;
  35 using base::android::ConvertJavaStringToUTF8;
  36 using base::android::ConvertUTF8ToJavaString;
  37
  38 namespace {
  39
  40 void OnLocalFaviconAvailable(
  41     ScopedJavaGlobalRef<jobject>* j_favicon_image_callback,
  42     const favicon_base::FaviconImageResult& favicon_image_result) {
  43   JNIEnv* env = AttachCurrentThread();
  44
  45   // Convert favicon_image_result to java objects.
  46   ScopedJavaLocalRef<jstring> j_icon_url =
  47       ConvertUTF8ToJavaString(env, favicon_image_result.icon_url.spec());
  48   SkBitmap favicon_bitmap = favicon_image_result.image.AsBitmap();
  49   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
  50   if (!favicon_bitmap.isNull())
  51     j_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
  52
  53   // Call java side OnLocalFaviconAvailable method.
  54   Java_FaviconImageCallback_onFaviconAvailable(env,
  55                                                j_favicon_image_callback->obj(),
  56                                                j_favicon_bitmap.obj(),
  57                                                j_icon_url.obj());
  58 }
  59
  60 void OnFaviconBitmapResultAvailable(
  61     ScopedJavaGlobalRef<jobject>* j_favicon_image_callback,
  62     const favicon_base::FaviconBitmapResult& favicon_bitmap_result) {
  63   JNIEnv* env = AttachCurrentThread();
  64
  65   // Convert favicon_image_result to java objects.
  66   ScopedJavaLocalRef<jstring> j_icon_url =
  67       ConvertUTF8ToJavaString(env, favicon_bitmap_result.icon_url.spec());
  68
  69   SkBitmap favicon_bitmap;
  70   if (favicon_bitmap_result.is_valid()) {
  71     gfx::PNGCodec::Decode(favicon_bitmap_result.bitmap_data->front(),
  72                           favicon_bitmap_result.bitmap_data->size(),
  73                           &favicon_bitmap);
  74   }
  75   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
  76   if (!favicon_bitmap.isNull())
  77     j_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
  78
  79   // Call java side OnLocalFaviconAvailable method.
  80   Java_FaviconImageCallback_onFaviconAvailable(env,
  81                                                j_favicon_image_callback->obj(),
  82                                                j_favicon_bitmap.obj(),
  83                                                j_icon_url.obj());
  84 }
  85
  86 }  // namespace
  87
  88 static jlong Init(JNIEnv* env, jclass clazz) {
  89   return reinterpret_cast<intptr_t>(new FaviconHelper());
  90 }
  91
  92 FaviconHelper::FaviconHelper() {
  93   cancelable_task_tracker_.reset(new base::CancelableTaskTracker());
  94 }
  95
  96 void FaviconHelper::Destroy(JNIEnv* env, jobject obj) {
  97   delete this;
  98 }
  99
 100 jboolean FaviconHelper::GetLocalFaviconImageForURL(
 101     JNIEnv* env,
 102     jobject obj,
 103     jobject j_profile,
 104     jstring j_page_url,
 105     jint j_icon_types,
 106     jint j_desired_size_in_dip,
 107     jobject j_favicon_image_callback) {
 108   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
 109   DCHECK(profile);
 110   if (!profile)
 111     return false;
 112
 113   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
 114       profile, Profile::EXPLICIT_ACCESS);
 115   DCHECK(favicon_service);
 116   if (!favicon_service)
 117     return false;
 118
 119   FaviconService::FaviconForURLParams params(
 120       GURL(ConvertJavaStringToUTF16(env, j_page_url)),
 121       static_cast<int>(j_icon_types),
 122       static_cast<int>(j_desired_size_in_dip));
 123
 124   ScopedJavaGlobalRef<jobject>* j_scoped_favicon_callback =
 125       new ScopedJavaGlobalRef<jobject>();
 126   j_scoped_favicon_callback->Reset(env, j_favicon_image_callback);
 127
 128   favicon_base::FaviconImageCallback callback_runner = base::Bind(
 129       &OnLocalFaviconAvailable, base::Owned(j_scoped_favicon_callback));
 130
 131   favicon_service->GetFaviconImageForURL(
 132       params, callback_runner,
 133       cancelable_task_tracker_.get());
 134
 135   return true;
 136 }
 137
 138 void FaviconHelper::GetLargestRawFaviconForUrl(
 139     JNIEnv* env,
 140     jobject obj,
 141     jobject j_profile,
 142     jstring j_page_url,
 143     jintArray j_icon_types,
 144     jint j_min_size_threshold_px,
 145     jobject j_favicon_image_callback) {
 146   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
 147   DCHECK(profile);
 148   if (!profile)
 149     return;
 150
 151   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
 152       profile, Profile::EXPLICIT_ACCESS);
 153   DCHECK(favicon_service);
 154   if (!favicon_service)
 155     return;
 156
 157   std::vector<int> icon_types;
 158   base::android::JavaIntArrayToIntVector(env, j_icon_types, &icon_types);
 159
 160   ScopedJavaGlobalRef<jobject>* j_scoped_favicon_callback =
 161       new ScopedJavaGlobalRef<jobject>();
 162   j_scoped_favicon_callback->Reset(env, j_favicon_image_callback);
 163
 164   favicon_base::FaviconRawCallback callback_runner = base::Bind(
 165       &OnFaviconBitmapResultAvailable, base::Owned(j_scoped_favicon_callback));
 166   favicon_service->GetLargestRawFaviconForURL(
 167       profile,
 168       GURL(ConvertJavaStringToUTF16(env, j_page_url)),
 169       icon_types,
 170       static_cast<int>(j_min_size_threshold_px),
 171       callback_runner,
 172       cancelable_task_tracker_.get());
 173 }
 174
 175 ScopedJavaLocalRef<jobject> FaviconHelper::GetSyncedFaviconImageForURL(
 176     JNIEnv* env,
 177     jobject obj,
 178     jobject jprofile,
 179     jstring j_page_url) {
 180   Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
 181   DCHECK(profile);
 182
 183   std::string page_url = ConvertJavaStringToUTF8(env, j_page_url);
 184
 185   ProfileSyncService* sync_service =
 186       ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
 187   DCHECK(sync_service);
 188
 189   scoped_refptr<base::RefCountedMemory> favicon_png;
 190   browser_sync::OpenTabsUIDelegate* open_tabs =
 191       sync_service->GetOpenTabsUIDelegate();
 192   DCHECK(open_tabs);
 193
 194   if (!open_tabs->GetSyncedFaviconForPageURL(page_url, &favicon_png))
 195     return ScopedJavaLocalRef<jobject>();
 196
 197   // Convert favicon_image_result to java objects.
 198   gfx::Image favicon_image = gfx::Image::CreateFrom1xPNGBytes(favicon_png);
 199   SkBitmap favicon_bitmap = favicon_image.AsBitmap();
 200
 201   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
 202   if (favicon_bitmap.isNull())
 203     return ScopedJavaLocalRef<jobject>();
 204
 205   return gfx::ConvertToJavaBitmap(&favicon_bitmap);
 206 }
 207
 208 FaviconHelper::~FaviconHelper() {}
 209
 210 static jint GetDominantColorForBitmap(JNIEnv* env,
 211                                       jclass clazz,
 212                                       jobject bitmap) {
 213   if (!bitmap)
 214     return 0;
 215
 216     gfx::JavaBitmap bitmap_lock(bitmap);
 217     SkBitmap skbitmap = gfx::CreateSkBitmapFromJavaBitmap(bitmap_lock);
 218     return color_utils::CalculateKMeanColorOfBitmap(skbitmap);
 219 }
 220
 221 // static
 222 bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
 223   return RegisterNativesImpl(env);
 224 }