| // Copyright 2014 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 CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_ |
| #define CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/id_map.h" |
| #include "base/macros.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "third_party/WebKit/public/platform/WebLockOrientationCallback.h" |
| #include "third_party/WebKit/public/platform/WebScreenOrientationClient.h" |
| #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h" |
| #include "third_party/WebKit/public/platform/WebScreenOrientationType.h" |
| |
| namespace content { |
| |
| class RenderFrame; |
| |
| // ScreenOrientationDispatcher implements the WebScreenOrientationClient API |
| // which handles screen lock. It sends lock (or unlock) requests to the browser |
| // process and listens for responses and let Blink know about the result of the |
| // request via WebLockOrientationCallback. |
| class CONTENT_EXPORT ScreenOrientationDispatcher : |
| public RenderFrameObserver, |
| NON_EXPORTED_BASE(public blink::WebScreenOrientationClient) { |
| public: |
| explicit ScreenOrientationDispatcher(RenderFrame* render_frame); |
| virtual ~ScreenOrientationDispatcher(); |
| |
| private: |
| friend class ScreenOrientationDispatcherTest; |
| |
| // RenderFrameObserver implementation. |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| |
| // blink::WebScreenOrientationClient implementation. |
| virtual void lockOrientation( |
| blink::WebScreenOrientationLockType orientation, |
| blink::WebLockOrientationCallback* callback) OVERRIDE; |
| virtual void unlockOrientation() OVERRIDE; |
| |
| void OnLockSuccess(int request_id, |
| unsigned angle, |
| blink::WebScreenOrientationType orientation); |
| void OnLockError(int request_id, |
| blink::WebLockOrientationError error); |
| |
| void CancelPendingLocks(); |
| |
| // The pending_callbacks_ map is mostly meant to have a unique ID to associate |
| // with every callback going trough the dispatcher. The map will own the |
| // pointer in the sense that it will destroy it when Remove() will be called. |
| // Furthermore, we only expect to have one callback at a time in this map, |
| // which is what IDMap was designed for. |
| typedef IDMap<blink::WebLockOrientationCallback, IDMapOwnPointer> CallbackMap; |
| CallbackMap pending_callbacks_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_H_ |