[COPY] - Implemented API for tracking ongoing file transfers from file manager.

chrome/browser/chromeos/extensions/file_browser_event_router.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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_CHROMEOS_EXTENSIONS_FILE_BROWSER_EVENT_ROUTER_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_BROWSER_EVENT_ROUTER_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/files/file_path_watcher.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/synchronization/lock.h"
 #include "chrome/browser/chromeos/disks/disk_mount_manager.h"
+#include "chrome/browser/chromeos/gdata/gdata_file_system.h"
+#include "chrome/browser/chromeos/gdata/gdata_operation_registry.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "chrome/browser/profiles/profile_keyed_service_factory.h"
 
 class FileBrowserNotifications;
 class Profile;
 
 // Used to monitor disk mount changes and signal when new mounted usb device is
 // found.
-class ExtensionFileBrowserEventRouter
-    : public chromeos::disks::DiskMountManager::Observer {
+class FileBrowserEventRouter
+    : public ProfileKeyedService,
+      public chromeos::disks::DiskMountManager::Observer,
+      public gdata::GDataOperationRegistry::Observer {
  public:
-  explicit ExtensionFileBrowserEventRouter(Profile* profile);
-  virtual ~ExtensionFileBrowserEventRouter();
+  // ProfileKeyedService overrides.
+  virtual void Shutdown() OVERRIDE;
+
   // Starts observing file system change events. Currently only
   // CrosDisksClient events are being observed.
   void ObserveFileSystemEvents();
 
   // File watch setup routines.
   bool AddFileWatch(const FilePath& file_path,
                     const FilePath& virtual_path,
                     const std::string& extension_id);
   void RemoveFileWatch(const FilePath& file_path,
                        const std::string& extension_id);
 
   // CrosDisksClient::Observer overrides.
   virtual void DiskChanged(chromeos::disks::DiskMountManagerEventType event,
                            const chromeos::disks::DiskMountManager::Disk* disk)
       OVERRIDE;
   virtual void DeviceChanged(chromeos::disks::DiskMountManagerEventType event,
                              const std::string& device_path) OVERRIDE;
   virtual void MountCompleted(
       chromeos::disks::DiskMountManager::MountEvent event_type,
       chromeos::MountError error_code,
       const chromeos::disks::DiskMountManager::MountPointInfo& mount_info)
       OVERRIDE;
 
+  // GDataOperationRegistry::Observer overrides.
+  virtual void OnProgressUpdate(
+      const std::vector<gdata::GDataOperationRegistry::ProgressStatus>& list)
+          OVERRIDE;
+
  private:
+  friend class FileBrowserEventRouterFactory;
+
   // Helper class for passing through file watch notification events.
   class FileWatcherDelegate : public base::files::FilePathWatcher::Delegate {
    public:
-    explicit FileWatcherDelegate(ExtensionFileBrowserEventRouter* router);
+    explicit FileWatcherDelegate(FileBrowserEventRouter* router);
 
    private:
     // base::files::FilePathWatcher::Delegate overrides.
     virtual void OnFilePathChanged(const FilePath& path) OVERRIDE;
     virtual void OnFilePathError(const FilePath& path) OVERRIDE;
 
     void HandleFileWatchOnUIThread(const FilePath& local_path, bool got_error);
 
-    ExtensionFileBrowserEventRouter* router_;
+    FileBrowserEventRouter* router_;
   };
 
   typedef std::map<std::string, int> ExtensionUsageRegistry;
 
   class FileWatcherExtensions {
    public:
     FileWatcherExtensions(const FilePath& path,
         const std::string& extension_id);
 
     ~FileWatcherExtensions() {}
@@ skipping 13 matching lines @@
    private:
     linked_ptr<base::files::FilePathWatcher> file_watcher;
     FilePath local_path;
     FilePath virtual_path;
     ExtensionUsageRegistry extensions;
     unsigned int ref_count;
   };
 
   typedef std::map<FilePath, FileWatcherExtensions*> WatcherMap;
 
+  explicit FileBrowserEventRouter(Profile* profile);
+  virtual ~FileBrowserEventRouter();
+
   // USB mount event handlers.
   void OnDiskAdded(const chromeos::disks::DiskMountManager::Disk* disk);
   void OnDiskRemoved(const chromeos::disks::DiskMountManager::Disk* disk);
   void OnDiskMounted(const chromeos::disks::DiskMountManager::Disk* disk);
   void OnDiskUnmounted(const chromeos::disks::DiskMountManager::Disk* disk);
   void OnDeviceAdded(const std::string& device_path);
   void OnDeviceRemoved(const std::string& device_path);
   void OnDeviceScanned(const std::string& device_path);
   void OnFormattingStarted(const std::string& device_path, bool success);
   void OnFormattingFinished(const std::string& device_path, bool success);
@@ skipping 22 matching lines @@
   void OpenFileBrowse(const std::string& url,
                       const std::string& device_path,
                       bool small);
 
   scoped_refptr<FileWatcherDelegate> delegate_;
   WatcherMap file_watchers_;
   scoped_ptr<FileBrowserNotifications> notifications_;
   Profile* profile_;
   base::Lock lock_;
 
-  DISALLOW_COPY_AND_ASSIGN(ExtensionFileBrowserEventRouter);
+  DISALLOW_COPY_AND_ASSIGN(FileBrowserEventRouter);
+};
+
+// Singleton that owns all FileBrowserEventRouter and associates
+// them with Profiles.
+class FileBrowserEventRouterFactory
+    : public ProfileKeyedServiceFactory {
+ public:
+  // Returns the FileBrowserEventRouter for |profile|, creating it if
+  // it is not yet created.
+  static FileBrowserEventRouter* GetForProfile(Profile* profile);
+
+  // Returns the FileBrowserEventRouterFactory instance.
+  static FileBrowserEventRouterFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<FileBrowserEventRouterFactory>;
+
+  FileBrowserEventRouterFactory();
+  virtual ~FileBrowserEventRouterFactory();
+
+  // ProfileKeyedServiceFactory:
+  virtual ProfileKeyedService* BuildServiceInstanceFor(
+      Profile* profile) const OVERRIDE;
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_BROWSER_EVENT_ROUTER_H_