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// 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_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_IMPL_H_
#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_IMPL_H_
#include "content/public/browser/screen_orientation_dispatcher_host.h"
#include "content/public/browser/web_contents_observer.h"
#include "third_party/WebKit/public/platform/WebLockOrientationError.h"
#include "third_party/WebKit/public/platform/WebScreenOrientationLockType.h"
namespace content {
class RenderFrameHost;
class ScreenOrientationProvider;
class WebContents;
// ScreenOrientationDispatcherHost receives lock and unlock requests from the
// RenderFrames and dispatch them to the ScreenOrientationProvider. It also
// make sure that the right RenderFrame get replied for each lock request.
class CONTENT_EXPORT ScreenOrientationDispatcherHostImpl
: public ScreenOrientationDispatcherHost,
public WebContentsObserver {
public:
explicit ScreenOrientationDispatcherHostImpl(WebContents* web_contents);
~ScreenOrientationDispatcherHostImpl() override;
// ScreenOrientationDispatcherHost:
void NotifyLockSuccess(int request_id) override;
void NotifyLockError(int request_id,
blink::WebLockOrientationError error) override;
void OnOrientationChange() override;
// WebContentsObserver:
bool OnMessageReceived(const IPC::Message&,
RenderFrameHost* render_frame_host) override;
void DidNavigateMainFrame(const LoadCommittedDetails& details,
const FrameNavigateParams& params) override;
private:
void OnLockRequest(RenderFrameHost* render_frame_host,
blink::WebScreenOrientationLockType orientation,
int request_id);
void OnUnlockRequest(RenderFrameHost* render_frame_host);
// Returns a RenderFrameHost if the request_id is still valid and the
// associated RenderFrameHost still exists. Returns NULL otherwise.
RenderFrameHost* GetRenderFrameHostForRequestID(int request_id);
void ResetCurrentLock();
void NotifyLockError(int request_id,
RenderFrameHost* render_frame_host,
blink::WebLockOrientationError error);
scoped_ptr<ScreenOrientationProvider> provider_;
struct LockInformation {
LockInformation(int request_id, int process_id, int routing_id);
int request_id;
int process_id;
int routing_id;
};
// current_lock_ will be NULL if there are no current lock.
LockInformation* current_lock_;
DISALLOW_COPY_AND_ASSIGN(ScreenOrientationDispatcherHostImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_DISPATCHER_HOST_IMPL_H_
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