src/chrome/browser/chromeos/extensions/wallpaper_private_api.h

   1 // Copyright (c) 2012 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 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
   6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
   7
   8 #include "base/threading/sequenced_worker_pool.h"
   9 #include "chrome/browser/chromeos/extensions/wallpaper_function_base.h"
  10 #include "chrome/common/extensions/api/wallpaper_private.h"
  11 #include "net/url_request/url_fetcher_delegate.h"
  12
  13 namespace chromeos {
  14 class UserImage;
  15 }  // namespace chromeos
  16
  17 // Wallpaper manager strings.
  18 class WallpaperPrivateGetStringsFunction : public SyncExtensionFunction {
  19  public:
  20   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.getStrings",
  21                              WALLPAPERPRIVATE_GETSTRINGS)
  22
  23  protected:
  24   virtual ~WallpaperPrivateGetStringsFunction() {}
  25
  26   // SyncExtensionFunction overrides.
  27   virtual bool RunImpl() OVERRIDE;
  28 };
  29
  30 class WallpaperPrivateSetWallpaperIfExistsFunction
  31     : public WallpaperFunctionBase {
  32  public:
  33   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.setWallpaperIfExists",
  34                              WALLPAPERPRIVATE_SETWALLPAPERIFEXISTS)
  35
  36   WallpaperPrivateSetWallpaperIfExistsFunction();
  37
  38  protected:
  39   virtual ~WallpaperPrivateSetWallpaperIfExistsFunction();
  40
  41   // AsyncExtensionFunction overrides.
  42   virtual bool RunImpl() OVERRIDE;
  43
  44  private:
  45   virtual void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper) OVERRIDE;
  46
  47   // File doesn't exist. Sets javascript callback parameter to false.
  48   void OnFileNotExists(const std::string& error);
  49
  50   // Reads file specified by |file_path|. If success, post a task to start
  51   // decoding the file.
  52   void ReadFileAndInitiateStartDecode(const base::FilePath& file_path,
  53                                       const base::FilePath& fallback_path);
  54
  55   scoped_ptr<extensions::api::wallpaper_private::SetWallpaperIfExists::Params>
  56       params;
  57
  58   // User id of the active user when this api is been called.
  59   std::string user_id_;
  60
  61   // Sequence token associated with wallpaper operations. Shared with
  62   // WallpaperManager.
  63   base::SequencedWorkerPool::SequenceToken sequence_token_;
  64 };
  65
  66 class WallpaperPrivateSetWallpaperFunction : public WallpaperFunctionBase {
  67  public:
  68   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.setWallpaper",
  69                              WALLPAPERPRIVATE_SETWALLPAPER)
  70
  71   WallpaperPrivateSetWallpaperFunction();
  72
  73  protected:
  74   virtual ~WallpaperPrivateSetWallpaperFunction();
  75
  76   // AsyncExtensionFunction overrides.
  77   virtual bool RunImpl() OVERRIDE;
  78
  79  private:
  80   virtual void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper) OVERRIDE;
  81
  82   // Saves the image data to a file.
  83   void SaveToFile();
  84
  85   // Sets wallpaper to the decoded image.
  86   void SetDecodedWallpaper(scoped_ptr<gfx::ImageSkia> wallpaper);
  87
  88   scoped_ptr<extensions::api::wallpaper_private::SetWallpaper::Params> params;
  89
  90   // The decoded wallpaper. It may accessed from UI thread to set wallpaper or
  91   // FILE thread to resize and save wallpaper to disk.
  92   gfx::ImageSkia wallpaper_;
  93
  94   // User id of the active user when this api is been called.
  95   std::string user_id_;
  96
  97   // Sequence token associated with wallpaper operations. Shared with
  98   // WallpaperManager.
  99   base::SequencedWorkerPool::SequenceToken sequence_token_;
 100 };
 101
 102 class WallpaperPrivateResetWallpaperFunction
 103     : public AsyncExtensionFunction {
 104  public:
 105   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.resetWallpaper",
 106                              WALLPAPERPRIVATE_RESETWALLPAPER)
 107
 108   WallpaperPrivateResetWallpaperFunction();
 109
 110  protected:
 111   virtual ~WallpaperPrivateResetWallpaperFunction();
 112
 113   // AsyncExtensionFunction overrides.
 114   virtual bool RunImpl() OVERRIDE;
 115 };
 116
 117 class WallpaperPrivateSetCustomWallpaperFunction
 118     : public WallpaperFunctionBase {
 119  public:
 120   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.setCustomWallpaper",
 121                              WALLPAPERPRIVATE_SETCUSTOMWALLPAPER)
 122
 123   WallpaperPrivateSetCustomWallpaperFunction();
 124
 125  protected:
 126   virtual ~WallpaperPrivateSetCustomWallpaperFunction();
 127
 128   // AsyncExtensionFunction overrides.
 129   virtual bool RunImpl() OVERRIDE;
 130
 131  private:
 132   virtual void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper) OVERRIDE;
 133
 134   // Generates thumbnail of custom wallpaper. A simple STRETCH is used for
 135   // generating thunbail.
 136   void GenerateThumbnail(const base::FilePath& thumbnail_path,
 137                          scoped_ptr<gfx::ImageSkia> image);
 138
 139   // Thumbnail is ready. Calls api function javascript callback.
 140   void ThumbnailGenerated(base::RefCountedBytes* data);
 141
 142   scoped_ptr<extensions::api::wallpaper_private::SetCustomWallpaper::Params>
 143       params;
 144
 145   // User id of the active user when this api is been called.
 146   std::string user_id_;
 147
 148   // User id hash of the logged in user.
 149   std::string user_id_hash_;
 150
 151   // Sequence token associated with wallpaper operations. Shared with
 152   // WallpaperManager.
 153   base::SequencedWorkerPool::SequenceToken sequence_token_;
 154 };
 155
 156 class WallpaperPrivateSetCustomWallpaperLayoutFunction
 157     : public AsyncExtensionFunction {
 158  public:
 159   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.setCustomWallpaperLayout",
 160                              WALLPAPERPRIVATE_SETCUSTOMWALLPAPERLAYOUT)
 161
 162   WallpaperPrivateSetCustomWallpaperLayoutFunction();
 163
 164  protected:
 165   virtual ~WallpaperPrivateSetCustomWallpaperLayoutFunction();
 166
 167   // AsyncExtensionFunction overrides.
 168   virtual bool RunImpl() OVERRIDE;
 169 };
 170
 171 class WallpaperPrivateMinimizeInactiveWindowsFunction
 172     : public AsyncExtensionFunction {
 173  public:
 174   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.minimizeInactiveWindows",
 175                              WALLPAPERPRIVATE_MINIMIZEINACTIVEWINDOWS)
 176
 177   WallpaperPrivateMinimizeInactiveWindowsFunction();
 178
 179  protected:
 180   virtual ~WallpaperPrivateMinimizeInactiveWindowsFunction();
 181
 182   // AsyncExtensionFunction overrides.
 183   virtual bool RunImpl() OVERRIDE;
 184 };
 185
 186 class WallpaperPrivateRestoreMinimizedWindowsFunction
 187     : public AsyncExtensionFunction {
 188  public:
 189   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.restoreMinimizedWindows",
 190                              WALLPAPERPRIVATE_RESTOREMINIMIZEDWINDOWS)
 191
 192   WallpaperPrivateRestoreMinimizedWindowsFunction();
 193
 194  protected:
 195   virtual ~WallpaperPrivateRestoreMinimizedWindowsFunction();
 196
 197   // AsyncExtensionFunction overrides.
 198   virtual bool RunImpl() OVERRIDE;
 199 };
 200
 201 class WallpaperPrivateGetThumbnailFunction : public AsyncExtensionFunction {
 202  public:
 203   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.getThumbnail",
 204                              WALLPAPERPRIVATE_GETTHUMBNAIL)
 205
 206   WallpaperPrivateGetThumbnailFunction();
 207
 208  protected:
 209   virtual ~WallpaperPrivateGetThumbnailFunction();
 210
 211   // AsyncExtensionFunction overrides.
 212   virtual bool RunImpl() OVERRIDE;
 213
 214  private:
 215   // Failed to get thumbnail for |file_name|.
 216   void Failure(const std::string& file_name);
 217
 218   // Returns true to suppress javascript console error. Called when the
 219   // requested thumbnail is not found or corrupted in thumbnail directory.
 220   void FileNotLoaded();
 221
 222   // Sets data field to the loaded thumbnail binary data in the results. Called
 223   // when requested wallpaper thumbnail loaded successfully.
 224   void FileLoaded(const std::string& data);
 225
 226   // Gets thumbnail from |path|. If |path| does not exist, call FileNotLoaded().
 227   void Get(const base::FilePath& path);
 228
 229   // Sequence token associated with wallpaper operations. Shared with
 230   // WallpaperManager.
 231   base::SequencedWorkerPool::SequenceToken sequence_token_;
 232 };
 233
 234 class WallpaperPrivateSaveThumbnailFunction : public AsyncExtensionFunction {
 235  public:
 236   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.saveThumbnail",
 237                              WALLPAPERPRIVATE_SAVETHUMBNAIL)
 238
 239   WallpaperPrivateSaveThumbnailFunction();
 240
 241  protected:
 242   virtual ~WallpaperPrivateSaveThumbnailFunction();
 243
 244   // AsyncExtensionFunction overrides.
 245   virtual bool RunImpl() OVERRIDE;
 246
 247  private:
 248   // Failed to save thumbnail for |file_name|.
 249   void Failure(const std::string& file_name);
 250
 251   // Saved thumbnail to thumbnail directory.
 252   void Success();
 253
 254   // Saves thumbnail to thumbnail directory as |file_name|.
 255   void Save(const std::string& data, const std::string& file_name);
 256
 257   // Sequence token associated with wallpaper operations. Shared with
 258   // WallpaperManager.
 259   base::SequencedWorkerPool::SequenceToken sequence_token_;
 260 };
 261
 262 class WallpaperPrivateGetOfflineWallpaperListFunction
 263     : public AsyncExtensionFunction {
 264  public:
 265   DECLARE_EXTENSION_FUNCTION("wallpaperPrivate.getOfflineWallpaperList",
 266                              WALLPAPERPRIVATE_GETOFFLINEWALLPAPERLIST)
 267   WallpaperPrivateGetOfflineWallpaperListFunction();
 268
 269  protected:
 270   virtual ~WallpaperPrivateGetOfflineWallpaperListFunction();
 271
 272   // AsyncExtensionFunction overrides.
 273   virtual bool RunImpl() OVERRIDE;
 274
 275  private:
 276   // Enumerates the list of files in online wallpaper directory.
 277   void GetList();
 278
 279   // Sends the list of files to extension api caller. If no files or no
 280   // directory, sends empty list.
 281   void OnComplete(const std::vector<std::string>& file_list);
 282
 283   // Sequence token associated with wallpaper operations. Shared with
 284   // WallpaperManager.
 285   base::SequencedWorkerPool::SequenceToken sequence_token_;
 286 };
 287
 288 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_