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// Copyright (c) 2012 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_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_
#include <map>
#include "base/memory/weak_ptr.h"
#include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
#include "content/renderer/pepper/pepper_device_enumeration_host_helper.h"
#include "content/public/renderer/render_view_observer_tracker.h"
#include "content/public/renderer/render_view_observer.h"
namespace content {
class RenderViewImpl;
class PepperMediaDeviceManager
: public MediaStreamDispatcherEventHandler,
public PepperDeviceEnumerationHostHelper::Delegate,
public RenderViewObserver,
public RenderViewObserverTracker<PepperMediaDeviceManager>,
public base::SupportsWeakPtr<PepperMediaDeviceManager> {
public:
static PepperMediaDeviceManager* GetForRenderView(RenderView* render_view);
virtual ~PepperMediaDeviceManager();
// PepperDeviceEnumerationHostHelper::Delegate implementation:
virtual int EnumerateDevices(
PP_DeviceType_Dev type,
const EnumerateDevicesCallback& callback) OVERRIDE;
virtual void StopEnumerateDevices(int request_id) OVERRIDE;
typedef base::Callback<void (int /* request_id */,
bool /* succeeded */,
const std::string& /* label */)>
OpenDeviceCallback;
// Opens the specified device. The request ID passed into the callback will be
// the same as the return value. If successful, the label passed into the
// callback identifies a audio/video steam, which can be used to call
// CloseDevice() and GetSesssionID().
int OpenDevice(PP_DeviceType_Dev type,
const std::string& device_id,
const GURL& document_url,
const OpenDeviceCallback& callback);
// Cancels an request to open device, using the request ID returned by
// OpenDevice(). It is guaranteed that the callback passed into OpenDevice()
// won't be called afterwards.
void CancelOpenDevice(int request_id);
void CloseDevice(const std::string& label);
// Gets audio/video session ID given a label.
int GetSessionID(PP_DeviceType_Dev type, const std::string& label);
// MediaStreamDispatcherEventHandler implementation.
virtual void OnStreamGenerated(
int request_id,
const std::string& label,
const StreamDeviceInfoArray& audio_device_array,
const StreamDeviceInfoArray& video_device_array) OVERRIDE;
virtual void OnStreamGenerationFailed(int request_id) OVERRIDE;
virtual void OnDevicesEnumerated(
int request_id,
const StreamDeviceInfoArray& device_array) OVERRIDE;
virtual void OnDevicesEnumerationFailed(int request_id) OVERRIDE;
virtual void OnDeviceOpened(
int request_id,
const std::string& label,
const StreamDeviceInfo& device_info) OVERRIDE;
virtual void OnDeviceOpenFailed(int request_id) OVERRIDE;
// Stream type conversion.
static MediaStreamType FromPepperDeviceType(PP_DeviceType_Dev type);
static PP_DeviceType_Dev FromMediaStreamType(MediaStreamType type);
private:
PepperMediaDeviceManager(RenderView* render_view);
void NotifyDevicesEnumerated(
int request_id,
bool succeeded,
const StreamDeviceInfoArray& device_array);
void NotifyDeviceOpened(int request_id,
bool succeeded,
const std::string& label);
RenderViewImpl* GetRenderViewImpl();
int next_id_;
typedef std::map<int, EnumerateDevicesCallback> EnumerateCallbackMap;
EnumerateCallbackMap enumerate_callbacks_;
typedef std::map<int, OpenDeviceCallback> OpenCallbackMap;
OpenCallbackMap open_callbacks_;
DISALLOW_COPY_AND_ASSIGN(PepperMediaDeviceManager);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_DEVICE_MANAGER_H_
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