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 "extensions/browser/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   ~AppIconLoaderImpl() override;
  27
  28   // AppIconLoader overrides:
  29   void FetchImage(const std::string& id) override;
  30   void ClearImage(const std::string& id) override;
  31   void UpdateImage(const std::string& id) override;
  32
  33   // extensions::IconImage::Observer overrides:
  34   void OnExtensionIconImageChanged(extensions::IconImage* image) override;
  35
  36  private:
  37   typedef std::map<extensions::IconImage*, std::string> ImageToExtensionIDMap;
  38
  39   // Builds image for given |id| and |icon|.
  40   void BuildImage(const std::string& id, const gfx::ImageSkia& icon);
  41
  42   Profile* profile_;
  43
  44   // The delegate object which receives the icon images. No ownership.
  45   AppIconLoader::Delegate* delegate_;
  46
  47   // Maps from IconImage pointer to the extension id.
  48   ImageToExtensionIDMap map_;
  49
  50   const int icon_size_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(AppIconLoaderImpl);
  53 };
  54
  55 }  // namespace extensions
  56
  57 #endif  // CHROME_BROWSER_EXTENSIONS_APP_ICON_LOADER_IMPL_H_