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::FaviconRawBitmapResult& result) {
  43   JNIEnv* env = AttachCurrentThread();
  44
  45   // Convert favicon_image_result to java objects.
  46   ScopedJavaLocalRef<jstring> j_icon_url =
  47       ConvertUTF8ToJavaString(env, result.icon_url.spec());
  48   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
  49   if (result.is_valid()) {
  50     SkBitmap favicon_bitmap;
  51     gfx::PNGCodec::Decode(result.bitmap_data->front(),
  52                           result.bitmap_data->size(),
  53                           &favicon_bitmap);
  54     if (!favicon_bitmap.isNull())
  55       j_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
  56   }
  57
  58   // Call java side OnLocalFaviconAvailable method.
  59   Java_FaviconImageCallback_onFaviconAvailable(env,
  60                                                j_favicon_image_callback->obj(),
  61                                                j_favicon_bitmap.obj(),
  62                                                j_icon_url.obj());
  63 }
  64
  65 void OnFaviconRawBitmapResultAvailable(
  66     ScopedJavaGlobalRef<jobject>* j_favicon_image_callback,
  67     const favicon_base::FaviconRawBitmapResult& favicon_bitmap_result) {
  68   JNIEnv* env = AttachCurrentThread();
  69
  70   // Convert favicon_image_result to java objects.
  71   ScopedJavaLocalRef<jstring> j_icon_url =
  72       ConvertUTF8ToJavaString(env, favicon_bitmap_result.icon_url.spec());
  73
  74   SkBitmap favicon_bitmap;
  75   if (favicon_bitmap_result.is_valid()) {
  76     gfx::PNGCodec::Decode(favicon_bitmap_result.bitmap_data->front(),
  77                           favicon_bitmap_result.bitmap_data->size(),
  78                           &favicon_bitmap);
  79   }
  80   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
  81   if (!favicon_bitmap.isNull())
  82     j_favicon_bitmap = gfx::ConvertToJavaBitmap(&favicon_bitmap);
  83
  84   // Call java side OnLocalFaviconAvailable method.
  85   Java_FaviconImageCallback_onFaviconAvailable(env,
  86                                                j_favicon_image_callback->obj(),
  87                                                j_favicon_bitmap.obj(),
  88                                                j_icon_url.obj());
  89 }
  90
  91 }  // namespace
  92
  93 static jlong Init(JNIEnv* env, jclass clazz) {
  94   return reinterpret_cast<intptr_t>(new FaviconHelper());
  95 }
  96
  97 FaviconHelper::FaviconHelper() {
  98   cancelable_task_tracker_.reset(new base::CancelableTaskTracker());
  99 }
 100
 101 void FaviconHelper::Destroy(JNIEnv* env, jobject obj) {
 102   delete this;
 103 }
 104
 105 jboolean FaviconHelper::GetLocalFaviconImageForURL(
 106     JNIEnv* env,
 107     jobject obj,
 108     jobject j_profile,
 109     jstring j_page_url,
 110     jint j_icon_types,
 111     jint j_desired_size_in_pixel,
 112     jobject j_favicon_image_callback) {
 113   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
 114   DCHECK(profile);
 115   if (!profile)
 116     return false;
 117
 118   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
 119       profile, ServiceAccessType::EXPLICIT_ACCESS);
 120   DCHECK(favicon_service);
 121   if (!favicon_service)
 122     return false;
 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::FaviconRawBitmapCallback callback_runner = base::Bind(
 129       &OnLocalFaviconAvailable, base::Owned(j_scoped_favicon_callback));
 130
 131   favicon_service->GetRawFaviconForPageURL(
 132       GURL(ConvertJavaStringToUTF16(env, j_page_url)),
 133       static_cast<int>(j_icon_types),
 134       static_cast<int>(j_desired_size_in_pixel),
 135       callback_runner,
 136       cancelable_task_tracker_.get());
 137
 138   return true;
 139 }
 140
 141 void FaviconHelper::GetLargestRawFaviconForUrl(
 142     JNIEnv* env,
 143     jobject obj,
 144     jobject j_profile,
 145     jstring j_page_url,
 146     jintArray j_icon_types,
 147     jint j_min_size_threshold_px,
 148     jobject j_favicon_image_callback) {
 149   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
 150   DCHECK(profile);
 151   if (!profile)
 152     return;
 153
 154   FaviconService* favicon_service = FaviconServiceFactory::GetForProfile(
 155       profile, ServiceAccessType::EXPLICIT_ACCESS);
 156   DCHECK(favicon_service);
 157   if (!favicon_service)
 158     return;
 159
 160   std::vector<int> icon_types;
 161   base::android::JavaIntArrayToIntVector(env, j_icon_types, &icon_types);
 162
 163   ScopedJavaGlobalRef<jobject>* j_scoped_favicon_callback =
 164       new ScopedJavaGlobalRef<jobject>();
 165   j_scoped_favicon_callback->Reset(env, j_favicon_image_callback);
 166
 167   favicon_base::FaviconRawBitmapCallback callback_runner =
 168       base::Bind(&OnFaviconRawBitmapResultAvailable,
 169                  base::Owned(j_scoped_favicon_callback));
 170   favicon_service->GetLargestRawFaviconForPageURL(
 171       GURL(ConvertJavaStringToUTF16(env, j_page_url)),
 172       icon_types,
 173       static_cast<int>(j_min_size_threshold_px),
 174       callback_runner,
 175       cancelable_task_tracker_.get());
 176 }
 177
 178 ScopedJavaLocalRef<jobject> FaviconHelper::GetSyncedFaviconImageForURL(
 179     JNIEnv* env,
 180     jobject obj,
 181     jobject jprofile,
 182     jstring j_page_url) {
 183   Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
 184   DCHECK(profile);
 185
 186   std::string page_url = ConvertJavaStringToUTF8(env, j_page_url);
 187
 188   ProfileSyncService* sync_service =
 189       ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
 190   DCHECK(sync_service);
 191
 192   scoped_refptr<base::RefCountedMemory> favicon_png;
 193   browser_sync::OpenTabsUIDelegate* open_tabs =
 194       sync_service->GetOpenTabsUIDelegate();
 195   DCHECK(open_tabs);
 196
 197   if (!open_tabs->GetSyncedFaviconForPageURL(page_url, &favicon_png))
 198     return ScopedJavaLocalRef<jobject>();
 199
 200   // Convert favicon_image_result to java objects.
 201   gfx::Image favicon_image = gfx::Image::CreateFrom1xPNGBytes(favicon_png);
 202   SkBitmap favicon_bitmap = favicon_image.AsBitmap();
 203
 204   ScopedJavaLocalRef<jobject> j_favicon_bitmap;
 205   if (favicon_bitmap.isNull())
 206     return ScopedJavaLocalRef<jobject>();
 207
 208   return gfx::ConvertToJavaBitmap(&favicon_bitmap);
 209 }
 210
 211 FaviconHelper::~FaviconHelper() {}
 212
 213 static jint GetDominantColorForBitmap(JNIEnv* env,
 214                                       jclass clazz,
 215                                       jobject bitmap) {
 216   if (!bitmap)
 217     return 0;
 218
 219     gfx::JavaBitmap bitmap_lock(bitmap);
 220     SkBitmap skbitmap = gfx::CreateSkBitmapFromJavaBitmap(bitmap_lock);
 221     return color_utils::CalculateKMeanColorOfBitmap(skbitmap);
 222 }
 223
 224 // static
 225 bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
 226   return RegisterNativesImpl(env);
 227 }