chrome/browser/android/shortcut_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/shortcut_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/basictypes.h"
  13 #include "base/strings/string16.h"
  14 #include "base/strings/utf_string_conversions.h"
  15 #include "chrome/browser/manifest/manifest_icon_downloader.h"
  16 #include "content/public/browser/browser_thread.h"
  17 #include "content/public/browser/web_contents.h"
  18 #include "jni/ShortcutHelper_jni.h"
  19 #include "ui/gfx/android/java_bitmap.h"
  20 #include "url/gurl.h"
  21
  22 using content::Manifest;
  23
  24 namespace {
  25
  26 static int kIdealHomescreenIconSize = -1;
  27 static int kMinimumHomescreenIconSize = -1;
  28 static int kIdealSplashImageSize = -1;
  29 static int kMinimumSplashImageSize = -1;
  30
  31 // Retrieves and caches the ideal and minimum sizes of the Home screen icon
  32 // and the splash screen image.
  33 void GetHomescreenIconAndSplashImageSizes() {
  34   JNIEnv* env = base::android::AttachCurrentThread();
  35   ScopedJavaLocalRef<jintArray> java_size_array =
  36       Java_ShortcutHelper_getHomescreenIconAndSplashImageSizes(env,
  37           base::android::GetApplicationContext());
  38   std::vector<int> sizes;
  39   base::android::JavaIntArrayToIntVector(
  40       env, java_size_array.obj(), &sizes);
  41
  42   // Check that the size returned is what is expected.
  43   DCHECK(sizes.size() == 4);
  44
  45   // This ordering must be kept up to date with the Java ShortcutHelper.
  46   kIdealHomescreenIconSize = sizes[0];
  47   kMinimumHomescreenIconSize = sizes[1];
  48   kIdealSplashImageSize = sizes[2];
  49   kMinimumSplashImageSize = sizes[3];
  50
  51   // Try to ensure that the data returned is sane.
  52   DCHECK(kMinimumHomescreenIconSize <= kIdealHomescreenIconSize);
  53   DCHECK(kMinimumSplashImageSize <= kIdealSplashImageSize);
  54 }
  55
  56 } // anonymous namespace
  57
  58 // static
  59 void ShortcutHelper::AddShortcutInBackgroundWithSkBitmap(
  60     const ShortcutInfo& info,
  61     const std::string& webapp_id,
  62     const SkBitmap& icon_bitmap) {
  63   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
  64
  65   // Send the data to the Java side to create the shortcut.
  66   JNIEnv* env = base::android::AttachCurrentThread();
  67   ScopedJavaLocalRef<jstring> java_webapp_id =
  68       base::android::ConvertUTF8ToJavaString(env, webapp_id);
  69   ScopedJavaLocalRef<jstring> java_url =
  70       base::android::ConvertUTF8ToJavaString(env, info.url.spec());
  71   ScopedJavaLocalRef<jstring> java_user_title =
  72       base::android::ConvertUTF16ToJavaString(env, info.user_title);
  73   ScopedJavaLocalRef<jstring> java_name =
  74       base::android::ConvertUTF16ToJavaString(env, info.name);
  75   ScopedJavaLocalRef<jstring> java_short_name =
  76       base::android::ConvertUTF16ToJavaString(env, info.short_name);
  77   ScopedJavaLocalRef<jobject> java_bitmap;
  78   if (icon_bitmap.getSize())
  79     java_bitmap = gfx::ConvertToJavaBitmap(&icon_bitmap);
  80
  81   Java_ShortcutHelper_addShortcut(
  82       env,
  83       base::android::GetApplicationContext(),
  84       java_webapp_id.obj(),
  85       java_url.obj(),
  86       java_user_title.obj(),
  87       java_name.obj(),
  88       java_short_name.obj(),
  89       java_bitmap.obj(),
  90       info.display == blink::WebDisplayModeStandalone,
  91       info.orientation,
  92       info.source,
  93       info.theme_color,
  94       info.background_color);
  95 }
  96
  97 int ShortcutHelper::GetIdealHomescreenIconSizeInDp() {
  98   if (kIdealHomescreenIconSize == -1)
  99     GetHomescreenIconAndSplashImageSizes();
 100   return kIdealHomescreenIconSize;
 101 }
 102
 103 int ShortcutHelper::GetMinimumHomescreenIconSizeInDp() {
 104   if (kMinimumHomescreenIconSize == -1)
 105     GetHomescreenIconAndSplashImageSizes();
 106   return kMinimumHomescreenIconSize;
 107 }
 108
 109 int ShortcutHelper::GetIdealSplashImageSizeInDp() {
 110   if (kIdealSplashImageSize == -1)
 111     GetHomescreenIconAndSplashImageSizes();
 112   return kIdealSplashImageSize;
 113 }
 114
 115 int ShortcutHelper::GetMinimumSplashImageSizeInDp() {
 116   if (kMinimumSplashImageSize == -1)
 117     GetHomescreenIconAndSplashImageSizes();
 118   return kMinimumSplashImageSize;
 119 }
 120
 121 // static
 122 void ShortcutHelper::FetchSplashScreenImage(
 123     content::WebContents* web_contents,
 124     const GURL& image_url,
 125     const int ideal_splash_image_size_in_dp,
 126     const int minimum_splash_image_size_in_dp,
 127     const std::string& webapp_id) {
 128   // This is a fire and forget task. It is not vital for the splash screen image
 129   // to be downloaded so if the downloader returns false there is no fallback.
 130   ManifestIconDownloader::Download(
 131       web_contents,
 132       image_url,
 133       ideal_splash_image_size_in_dp,
 134       minimum_splash_image_size_in_dp,
 135       base::Bind(&ShortcutHelper::StoreWebappData, webapp_id));
 136 }
 137
 138 // static
 139 void ShortcutHelper::StoreWebappData(
 140     const std::string& webapp_id,
 141     const SkBitmap& splash_image) {
 142   if (splash_image.drawsNothing())
 143     return;
 144
 145   JNIEnv* env = base::android::AttachCurrentThread();
 146   ScopedJavaLocalRef<jstring> java_webapp_id =
 147       base::android::ConvertUTF8ToJavaString(env, webapp_id);
 148   ScopedJavaLocalRef<jobject> java_splash_image =
 149       gfx::ConvertToJavaBitmap(&splash_image);
 150
 151   Java_ShortcutHelper_storeWebappData(
 152       env,
 153       base::android::GetApplicationContext(),
 154       java_webapp_id.obj(),
 155       java_splash_image.obj());
 156 }
 157
 158 bool ShortcutHelper::RegisterShortcutHelper(JNIEnv* env) {
 159   return RegisterNativesImpl(env);
 160 }