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// 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.
#ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_UI_PROXY_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_UI_PROXY_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/media_stream_request.h"
namespace content {
class RenderFrameHostDelegate;
// MediaStreamUIProxy proxies calls to media stream UI between IO thread and UI
// thread. One instance of this class is create per MediaStream object. It must
// be created, used and destroyed on IO thread.
class CONTENT_EXPORT MediaStreamUIProxy {
public:
typedef base::Callback<
void (const MediaStreamDevices& devices,
content::MediaStreamRequestResult result)>
ResponseCallback;
typedef base::Callback<void(gfx::NativeViewId window_id)> WindowIdCallback;
static scoped_ptr<MediaStreamUIProxy> Create();
static scoped_ptr<MediaStreamUIProxy> CreateForTests(
RenderFrameHostDelegate* render_delegate);
virtual ~MediaStreamUIProxy();
// Requests access for the MediaStream by calling
// WebContentsDelegate::RequestMediaAccessPermission(). The specified
// |response_callback| is called when the WebContentsDelegate approves or
// denies request.
virtual void RequestAccess(const MediaStreamRequest& request,
const ResponseCallback& response_callback);
// Checks if we have permission to access the microphone or camera. Note that
// this does not query the user, it checks any stored settings such as policy
// or extension permissions. |type| must be MEDIA_DEVICE_AUDIO_CAPTURE
// or MEDIA_DEVICE_VIDEO_CAPTURE.
virtual void CheckAccess(const GURL& security_origin,
MediaStreamType type,
int render_process_id,
int render_frame_id,
const base::Callback<void(bool)>& callback);
// Notifies the UI that the MediaStream has been started. Must be called after
// access has been approved using RequestAccess(). |stop_callback| is be
// called on the IO thread after the user has requests the stream to be
// stopped. |window_id_callback| is called on the IO thread with the platform-
// dependent window ID of the UI.
virtual void OnStarted(const base::Closure& stop_callback,
const WindowIdCallback& window_id_callback);
void SetRenderFrameHostDelegateForTests(RenderFrameHostDelegate* delegate);
protected:
explicit MediaStreamUIProxy(RenderFrameHostDelegate* test_render_delegate);
private:
class Core;
friend class Core;
friend class FakeMediaStreamUIProxy;
void ProcessAccessRequestResponse(
const MediaStreamDevices& devices,
content::MediaStreamRequestResult result);
void ProcessStopRequestFromUI();
void OnWindowId(const WindowIdCallback& window_id_callback,
gfx::NativeViewId* window_id);
void OnCheckedAccess(const base::Callback<void(bool)>& callback,
bool have_access);
scoped_ptr<Core, content::BrowserThread::DeleteOnUIThread> core_;
ResponseCallback response_callback_;
base::Closure stop_callback_;
base::WeakPtrFactory<MediaStreamUIProxy> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(MediaStreamUIProxy);
};
class CONTENT_EXPORT FakeMediaStreamUIProxy : public MediaStreamUIProxy {
public:
explicit FakeMediaStreamUIProxy();
~FakeMediaStreamUIProxy() override;
void SetAvailableDevices(const MediaStreamDevices& devices);
void SetMicAccess(bool access);
void SetCameraAccess(bool access);
// MediaStreamUIProxy overrides.
void RequestAccess(const MediaStreamRequest& request,
const ResponseCallback& response_callback) override;
void CheckAccess(const GURL& security_origin,
MediaStreamType type,
int render_process_id,
int render_frame_id,
const base::Callback<void(bool)>& callback) override;
void OnStarted(const base::Closure& stop_callback,
const WindowIdCallback& window_id_callback) override;
private:
// This is used for RequestAccess().
MediaStreamDevices devices_;
// These are used for CheckAccess().
bool mic_access_;
bool camera_access_;
DISALLOW_COPY_AND_ASSIGN(FakeMediaStreamUIProxy);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_UI_PROXY_H_
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