Wallpaper manager backend APIs

chrome/browser/chromeos/extensions/wallpaper_private_api.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
+#define CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
+
+#include "ash/desktop_background/desktop_background_resources.h"
+#include "chrome/browser/extensions/extension_function.h"
+#include "net/url_request/url_fetcher_delegate.h"
+#include "ui/gfx/image/image_skia.h"
+
+// Wallpaper manager strings.
+class WallpaperStringsFunction : public SyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION_NAME("wallpaperPrivate.getStrings");
+
+ protected:
+  virtual ~WallpaperStringsFunction() {}
+
+  // SyncExtensionFunction overrides.
+  virtual bool RunImpl() OVERRIDE;
+};
+
+class WallpaperSetWallpaperFunction : public AsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION_NAME("wallpaperPrivate.setWallpaper");
+
+  WallpaperSetWallpaperFunction();
+
+ protected:
+  virtual ~WallpaperSetWallpaperFunction();
+
+  // AsyncExtensionFunction overrides.
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  class WallpaperDecoder;
+
+  void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper);
+  void OnFail();
+
+  // Saves the image data to a file.
+  void SaveToFile();
+
+  // Sets wallpaper to the decoded image.
+  void SetDecodedWallpaper();
+
+  // Layout of the downloaded wallpaper.
+  ash::WallpaperLayout layout_;
+
+  // The decoded wallpaper.
+  gfx::ImageSkia wallpaper_;
+
+  // Email address of logged in user.
+  std::string email_;
+
+  // File name extracts from URL.
+  std::string file_name_;
+
+  // String representation of downloaded wallpaper.
+  std::string image_data_;
+
+  // Holds an instance of WallpaperDecoder.
+  static WallpaperDecoder* wallpaper_decoder_;
+};
+
+#endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_