1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_
6 #define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_
8 #include "base/id_map.h"
9 #include "content/public/browser/render_frame_host.h"
10 #include "content/public/browser/web_contents_observer.h"
11 #include "third_party/WebKit/public/platform/WebLockOrientationError.h"
12 #include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
13 #include "third_party/WebKit/public/platform/WebScreenOrientationType.h"
17 class RenderFrameHost;
18 class ScreenOrientationProvider;
21 // ScreenOrientationDispatcherHost receives lock and unlock requests from the
22 // RenderFrames and dispatch them to the ScreenOrientationProvider. It also
23 // make sure that the right RenderFrame get replied for each lock request.
24 class CONTENT_EXPORT ScreenOrientationDispatcherHost
25 : public WebContentsObserver {
27 explicit ScreenOrientationDispatcherHost(WebContents* web_contents);
28 virtual ~ScreenOrientationDispatcherHost();
30 // WebContentsObserver
31 virtual bool OnMessageReceived(const IPC::Message&,
32 RenderFrameHost* render_frame_host) OVERRIDE;
34 // Notifies that the lock with the given |request_id| has succeeded.
35 // The renderer process will be notified that the lock succeeded only if
36 // |request_id| matches the |current_lock_|.
37 void NotifyLockSuccess(int request_id);
39 // Notifies that the lock with the given |request_id| has failed.
40 // The renderer process will be notified that the lock succeeded only if
41 // |request_id| matches the |current_lock_|.
42 void NotifyLockError(int request_id, blink::WebLockOrientationError error);
44 void OnOrientationChange();
46 void SetProvider(ScreenOrientationProvider* provider);
49 void OnLockRequest(RenderFrameHost* render_frame_host,
50 blink::WebScreenOrientationLockType orientation,
52 void OnUnlockRequest(RenderFrameHost* render_frame_host);
54 // Returns a RenderFrameHost if the request_id is still valid and the
55 // associated RenderFrameHost still exists. Returns NULL otherwise.
56 RenderFrameHost* GetRenderFrameHostForRequestID(int request_id);
58 void ResetCurrentLock();
59 void NotifyLockError(int request_id,
60 RenderFrameHost* render_frame_host,
61 blink::WebLockOrientationError error);
63 scoped_ptr<ScreenOrientationProvider> provider_;
65 struct LockInformation {
66 LockInformation(int request_id, int process_id, int routing_id);
71 // current_lock_ will be NULL if there are no current lock.
72 LockInformation* current_lock_;
74 DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcherHost);
77 } // namespace content
79 #endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_H_