chrome/browser/ui/webui/options/media_galleries_handler.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_UI_WEBUI_OPTIONS_MEDIA_GALLERIES_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_MEDIA_GALLERIES_HANDLER_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/prefs/pref_change_registrar.h"
  11 #include "chrome/browser/media_galleries/media_galleries_preferences.h"
  12 #include "chrome/browser/ui/webui/options/options_ui.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "ui/shell_dialogs/select_file_dialog.h"
  15
  16 namespace options {
  17
  18 // Handles messages related to adding or removing media galleries.
  19 class MediaGalleriesHandler
  20     : public OptionsPageUIHandler,
  21       public ui::SelectFileDialog::Listener,
  22       public MediaGalleriesPreferences::GalleryChangeObserver {
  23  public:
  24   MediaGalleriesHandler();
  25   virtual ~MediaGalleriesHandler();
  26
  27   // OptionsPageUIHandler implementation.
  28   virtual void GetLocalizedValues(base::DictionaryValue* values) OVERRIDE;
  29   virtual void RegisterMessages() OVERRIDE;
  30
  31   // SelectFileDialog::Listener implementation.
  32   virtual void FileSelected(const base::FilePath& path,
  33                             int index,
  34                             void* params) OVERRIDE;
  35
  36   // MediaGalleriesPreferences::GalleryChangeObserver overrides.
  37   virtual void OnGalleryAdded(MediaGalleriesPreferences* pref,
  38                               MediaGalleryPrefId pref_id) OVERRIDE;
  39   virtual void OnGalleryRemoved(MediaGalleriesPreferences* pref,
  40                                 MediaGalleryPrefId pref_id) OVERRIDE;
  41   virtual void OnGalleryInfoUpdated(MediaGalleriesPreferences* pref,
  42                                     MediaGalleryPrefId pref_id) OVERRIDE;
  43
  44  private:
  45   // Handles the "addNewGallery" message (no arguments).
  46   void HandleAddNewGallery(const base::ListValue* args);
  47
  48   // Handles the "initializeMediaGalleries" message (no arguments).
  49   void HandleInitializeMediaGalleries(const base::ListValue* args);
  50
  51   // Handles "forgetGallery" message. The first and only argument is the id of
  52   // the gallery.
  53   void HandleForgetGallery(const base::ListValue* args);
  54
  55   // Called when the list of known galleries has changed; updates the page.
  56   void OnGalleriesChanged(MediaGalleriesPreferences* pref);
  57
  58   // Called when MediaGalleriesPreferences have been initialized.
  59   void PreferencesInitialized();
  60
  61   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
  62
  63   base::WeakPtrFactory<MediaGalleriesHandler> weak_ptr_factory_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesHandler);
  66 };
  67
  68 }  // namespace options
  69
  70 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_MEDIA_GALLERIES_HANDLER_H_