Media Galleries: Add chrome.mediaGalleries.addUserSelectedFolder().

chrome/browser/extensions/api/media_galleries/media_galleries_api.h

 // 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.
 
 // Defines the Chrome Extensions Media Galleries API functions for accessing
 // user's media files, as specified in the extension API IDL.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_
 
+#include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 #include "chrome/browser/storage_monitor/media_storage_util.h"
 #include "chrome/common/extensions/api/media_galleries.h"
 
 namespace MediaGalleries = extensions::api::media_galleries;
 
@@ skipping 50 matching lines @@
   // Bottom half for RunImpl, invoked after the preferences is initialized.
   // Gets the list of permitted galleries and checks if they are available.
   void OnPreferencesInit();
 
   // Callback to run upon getting the list of available devices.
   // Sends the list of media filesystem metadata back to the extension.
   void OnGetGalleries(const MediaGalleryPrefIdSet& permitted_gallery_ids,
                       const MediaStorageUtil::DeviceIdSet* available_devices);
 };
 
+class MediaGalleriesAddUserSelectedFolderFunction
+    : public ChromeAsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("mediaGalleries.addUserSelectedFolder",
+                             MEDIAGALLERIES_ADDUSERSELECTEDFOLDER)
+
+ protected:
+  virtual ~MediaGalleriesAddUserSelectedFolderFunction();
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  // Bottom half for RunImpl, invoked after the preferences is initialized.
+  void OnPreferencesInit();
+
+  // Callback for the directory prompt request, with the input from the user.
+  // If |selected_directory| is empty, then the user canceled.
+  // Either handle the user canceled case or add the selected gallery.
+  void OnDirectorySelected(const base::FilePath& selected_directory);
+
+  // Callback for the directory prompt request. |pref_id| is for the gallery
+  // the user just added. |filesystems| is the entire list of file systems.
+  // The fsid for the file system that corresponds to |pref_id| will be
+  // appended to the list of file systems returned to the caller. The
+  // Javascript binding for this API will interpret the list appropriately.
+  void ReturnGalleriesAndId(
+      MediaGalleryPrefId pref_id,
+      const std::vector<MediaFileSystemInfo>& filesystems);
+
+  // A helper method that calls
+  // MediaFileSystemRegistry::GetMediaFileSystemsForExtension().
+  void GetMediaFileSystemsForExtension(const MediaFileSystemsCallback& cb);
+};
+
 class MediaGalleriesGetMetadataFunction : public ChromeAsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("mediaGalleries.getMetadata",
                              MEDIAGALLERIES_GETMETADATA)
 
  protected:
   virtual ~MediaGalleriesGetMetadataFunction();
   virtual bool RunImpl() OVERRIDE;
 
  private:
   // Bottom half for RunImpl, invoked after the preferences is initialized.
   void OnPreferencesInit(bool mime_type_only, const std::string& blob_uuid);
 
   void SniffMimeType(bool mime_type_only, scoped_ptr<std::string> blob_header);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_