drive: Introduce chrome/browser/google_apis/drive_common_callbacks.h

chrome/browser/google_apis/drive_common_callbacks.h

+// Copyright 2013 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.
+//
+// This file contains callback types used for communicating with the Drive
+// server via WAPI (Documents List API) and Drive API.
+
+#ifndef CHROME_BROWSER_GOOGLE_APIS_DRIVE_COMMON_CALLBACKS_H_
+#define CHROME_BROWSER_GOOGLE_APIS_DRIVE_COMMON_CALLBACKS_H_
+
+#include "chrome/browser/google_apis/base_requests.h"
+
+namespace google_apis {
+
+class AboutResource;
+class AppList;
+class ResourceEntry;
+class ResourceList;
+
+// Callback used for getting ResourceList.
+typedef base::Callback<void(GDataErrorCode error,
+                            scoped_ptr<ResourceList> resource_list)>
+    GetResourceListCallback;
+
+// Callback used for getting ResourceEntry.
+typedef base::Callback<void(GDataErrorCode error,
+                            scoped_ptr<ResourceEntry> entry)>
+    GetResourceEntryCallback;
+
+// Callback used for gettign AboutResource.
+typedef base::Callback<void(GDataErrorCode error,
+                            scoped_ptr<AboutResource> about_resource)>
+    GetAboutResourceCallback;
+
+// Callback used for getting AppList.
+typedef base::Callback<void(GDataErrorCode error,
+                            scoped_ptr<AppList> app_list)>
+    GetAppListCallback;
+
+// Callback used for handling UploadRangeResponse.
+typedef base::Callback<void(
+    const UploadRangeResponse& response,
+    scoped_ptr<ResourceEntry> new_entry)> UploadRangeCallback;
+
+// Callback used for authrozing an app. |open_url| is used to open the target
+// file with the authorized app.
+typedef base::Callback<void(GDataErrorCode error,
+                            const GURL& open_url)>
+    AuthorizeAppCallback;
+
+// Closure for canceling a certain request. Each request-issuing method returns
+// this type of closure. If it is called during the request is in-flight, the
+// callback passed with the request is invoked with GDATA_CANCELLED. If the
+// request is already finished, nothing happens.
+typedef base::Closure CancelCallback;
+
+}  // namespace google_apis
+
+#endif  // CHROME_BROWSER_GOOGLE_APIS_DRIVE_COMMON_CALLBACKS_H_