text: // 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_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_MEDIA_GALLERIES_PRIVATE_API_H_
  #define CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_MEDIA_GALLERIES_PRIVATE_API_H_
  
  #include <string>
  #include <vector>
  
  #include "base/memory/scoped_ptr.h"
  #include "base/memory/weak_ptr.h"
  #include "chrome/browser/extensions/api/media_galleries_private/gallery_watch_state_tracker.h"
  #include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
  #include "chrome/browser/extensions/chrome_extension_function.h"
  #include "chrome/browser/media_galleries/media_galleries_preferences.h"
  #include "chrome/common/extensions/api/media_galleries_private.h"
  #include "extensions/browser/event_router.h"
  
  class Profile;
  
  namespace content {
  class BrowserContext;
  }
  
  namespace extensions {
  
  class MediaGalleriesPrivateEventRouter;
  
  // The profile-keyed service that manages the media galleries private extension
  // API. Created at the same time as the Profile.
  class MediaGalleriesPrivateAPI : public ProfileKeyedAPI,
                                   public EventRouter::Observer {
   public:
    explicit MediaGalleriesPrivateAPI(content::BrowserContext* context);
    virtual ~MediaGalleriesPrivateAPI();
  
    // BrowserContextKeyedService implementation.
    virtual void Shutdown() OVERRIDE;
  
    // ProfileKeyedAPI implementation.
    static ProfileKeyedAPIFactory<MediaGalleriesPrivateAPI>* GetFactoryInstance();
  
    // Convenience method to get the MediaGalleriesPrivateAPI for a profile.
    static MediaGalleriesPrivateAPI* Get(content::BrowserContext* context);
  
    // EventRouter::Observer implementation.
    virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE;
  
    MediaGalleriesPrivateEventRouter* GetEventRouter();
    GalleryWatchStateTracker* GetGalleryWatchStateTracker();
  
   private:
    friend class ProfileKeyedAPIFactory<MediaGalleriesPrivateAPI>;
  
    void MaybeInitializeEventRouterAndTracker();
  
    // ProfileKeyedAPI implementation.
    static const char* service_name() {
      return "MediaGalleriesPrivateAPI";
    }
    static const bool kServiceIsNULLWhileTesting = true;
  
    // Current profile.
    Profile* profile_;
  
    // Created lazily on first access.
    scoped_ptr<GalleryWatchStateTracker> tracker_;
  
    // Created lazily on first access.
    scoped_ptr<MediaGalleriesPrivateEventRouter>
        media_galleries_private_event_router_;
  
    base::WeakPtrFactory<MediaGalleriesPrivateAPI> weak_ptr_factory_;
  
    DISALLOW_COPY_AND_ASSIGN(MediaGalleriesPrivateAPI);
  };
  
  // Implements the chrome.mediaGalleriesPrivate.addGalleryWatch method.
  class MediaGalleriesPrivateAddGalleryWatchFunction
      : public ChromeAsyncExtensionFunction {
   public:
    DECLARE_EXTENSION_FUNCTION("mediaGalleriesPrivate.addGalleryWatch",
                               MEDIAGALLERIESPRIVATE_ADDGALLERYWATCH);
  
   protected:
    virtual ~MediaGalleriesPrivateAddGalleryWatchFunction();
  
    // AsyncExtensionFunction overrides.
    virtual bool RunImpl() OVERRIDE;
  
   private:
    void OnPreferencesInit(const std::string& pref_id);
  
    // Gallery watch request handler.
    void HandleResponse(MediaGalleryPrefId gallery_id, bool success);
  };
  
  // Implements the chrome.mediaGalleriesPrivate.removeGalleryWatch method.
  class MediaGalleriesPrivateRemoveGalleryWatchFunction
      : public ChromeAsyncExtensionFunction {
   public:
    DECLARE_EXTENSION_FUNCTION("mediaGalleriesPrivate.removeGalleryWatch",
                               MEDIAGALLERIESPRIVATE_REMOVEGALLERYWATCH);
  
   protected:
    virtual ~MediaGalleriesPrivateRemoveGalleryWatchFunction();
  
    // SyncExtensionFunction overrides.
    virtual bool RunImpl() OVERRIDE;
  
   private:
    void OnPreferencesInit(const std::string& pref_id);
  };
  
  // Implements the chrome.mediaGalleriesPrivate.getAllGalleryWatch method.
  class MediaGalleriesPrivateGetAllGalleryWatchFunction
      : public ChromeAsyncExtensionFunction {
   public:
    DECLARE_EXTENSION_FUNCTION("mediaGalleriesPrivate.getAllGalleryWatch",
                               MEDIAGALLERIESPRIVATE_GETALLGALLERYWATCH);
   protected:
    virtual ~MediaGalleriesPrivateGetAllGalleryWatchFunction();
  
    // SyncExtensionFunction overrides.
    virtual bool RunImpl() OVERRIDE;
  
   private:
    void OnPreferencesInit();
  };
  
  // Implements the chrome.mediaGalleriesPrivate.removeAllGalleryWatch method.
  class MediaGalleriesPrivateRemoveAllGalleryWatchFunction
      : public ChromeAsyncExtensionFunction {
   public:
    DECLARE_EXTENSION_FUNCTION("mediaGalleriesPrivate.removeAllGalleryWatch",
                               MEDIAGALLERIESPRIVATE_REMOVEALLGALLERYWATCH);
   protected:
    virtual ~MediaGalleriesPrivateRemoveAllGalleryWatchFunction();
  
    // SyncExtensionFunction overrides.
    virtual bool RunImpl() OVERRIDE;
  
   private:
    void OnPreferencesInit();
  };
  
  // Implements the chrome.mediaGalleriesPrivate.getHandlers method.
  class MediaGalleriesPrivateGetHandlersFunction
      : public ChromeAsyncExtensionFunction {
   public:
    DECLARE_EXTENSION_FUNCTION("mediaGalleriesPrivate.getHandlers",
                               MEDIAGALLERIESPRIVATE_GETHANDLERS);
  
   protected:
    virtual ~MediaGalleriesPrivateGetHandlersFunction();
  
    // AsyncExtensionFunction overrides.
    virtual bool RunImpl() OVERRIDE;
  };
  
  }  // namespace extensions
  
  #endif  // CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_MEDIA_GALLERIES_PRIVATE_API_H_
  