chrome/browser/extensions/app_icon_loader_impl.h

   1 // Copyright (c) 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 #ifndef CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_IMPL_H_
   6 #define CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_IMPL_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "chrome/browser/extensions/app_icon_loader.h"
  12 #include "chrome/browser/extensions/extension_icon_image.h"
  13
  14 class Profile;
  15
  16 namespace extensions {
  17 class Extension;
  18
  19 // Default implementation of ash::AppIconLoader that interacts with the
  20 // ExtensionService and ImageLoader to load images.
  21 class AppIconLoaderImpl : public AppIconLoader,
  22                           public extensions::IconImage::Observer {
  23  public:
  24   AppIconLoaderImpl(Profile* profile, int icon_size,
  25                     AppIconLoader::Delegate* delegate);
  26   virtual ~AppIconLoaderImpl();
  27
  28   // AppIconLoader overrides:
  29   virtual void FetchImage(const std::string& id) OVERRIDE;
  30   virtual void ClearImage(const std::string& id) OVERRIDE;
  31   virtual void UpdateImage(const std::string& id) OVERRIDE;
  32
  33   // extensions::IconImage::Observer overrides:
  34   virtual void OnExtensionIconImageChanged(
  35       extensions::IconImage* image) OVERRIDE;
  36
  37  private:
  38   typedef std::map<extensions::IconImage*, std::string> ImageToExtensionIDMap;
  39
  40   // Builds image for given |id| and |icon|.
  41   void BuildImage(const std::string& id, const gfx::ImageSkia& icon);
  42
  43   Profile* profile_;
  44
  45   // The delegate object which receives the icon images. No ownership.
  46   AppIconLoader::Delegate* delegate_;
  47
  48   // Maps from IconImage pointer to the extension id.
  49   ImageToExtensionIDMap map_;
  50
  51   const int icon_size_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(AppIconLoaderImpl);
  54 };
  55
  56 }  // namespace extensions
  57
  58 #endif  // CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_IMPL_H_