// 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.
// Manages all the gallery file watchers for the associated profile. This class
// lives on the file thread. This class is instantiated per profile. This
// is temporary and will be moved to a permanent, public place in the near
// future. Please refer to crbug.com/166950 for more details.
#ifndef CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_
#define CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_
#include <map>
#include <string>
#include "base/files/file_path.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/media_galleries/media_galleries_preferences.h"
namespace extensions {
class MediaGalleriesPrivateEventRouter;
class GalleryWatchManager {
public:
// Returns the GalleryWatchManager for |profile_id|, creating it if it is not
// yet created.
static GalleryWatchManager* GetForProfile(void* profile_id);
// Returns true if an GalleryWatchManager already exists for the specified
// |profile_id|.
static bool HasForProfile(void* profile_id);
// Notifies about the profile shutdown event.
static void OnProfileShutdown(void* profile_id);
// Sets up a gallery watch for the extension specified by the |extension_id|.
// |profile_id| specifies the extension profile identifier.
// |gallery_id| specifies the gallery identifier.
// |watch_path| specifies the absolute gallery path.
// Returns true, if the watch setup operation was successful.
static bool SetupGalleryWatch(
void* profile_id,
MediaGalleryPrefId gallery_id,
const base::FilePath& watch_path,
const std::string& extension_id,
base::WeakPtr<MediaGalleriesPrivateEventRouter> event_router);
// Cancels the gallery watch for the extension specified by the
// |extension_id|. |profile_id| specifies the extension profile identifier.
// |watch_path| specifies the absolute gallery path.
static void RemoveGalleryWatch(void* profile_id,
const base::FilePath& watch_path,
const std::string& extension_id);
// Notifies about the extension unloaded/uninstalled event.
static void OnExtensionUnloaded(void* profile_id,
const std::string& extension_id);
private:
class GalleryFilePathWatcher;
typedef std::map<base::FilePath, GalleryFilePathWatcher*> WatcherMap;
// Use GetForProfile().
GalleryWatchManager();
~GalleryWatchManager();
// Initiates a gallery watch operation for the extension specified by
// the |extension_id|. |gallery_id| specifies the gallery identifier and
// |watch_path| specifies the absolute path of the gallery. Returns true,
// if the watch was set successfully.
bool StartGalleryWatch(
MediaGalleryPrefId gallery_id,
const base::FilePath& watch_path,
const std::string& extension_id,
base::WeakPtr<MediaGalleriesPrivateEventRouter> event_router);
// Cancels the gallery watch operation for the extension specified by the
// |extension_id|. |watch_path| specifies the absolute path of the gallery.
void StopGalleryWatch(const base::FilePath& watch_path,
const std::string& extension_id);
// Handles the extension unloaded/uninstalled event.
void HandleExtensionUnloadedEvent(const std::string& extension_id);
// Deletes the gallery watchers.
void DeleteAllWatchers();
// Removes the GalleryFilePathWatcher entry associated with the given
// |watch_path|.
void RemoveGalleryFilePathWatcherEntry(const base::FilePath& watch_path);
// Map to manage the gallery file path watchers.
// Key: Gallery watch path.
// Value: GalleryFilePathWatcher*.
WatcherMap gallery_watchers_;
DISALLOW_COPY_AND_ASSIGN(GalleryWatchManager);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_