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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_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
#include <map>
#include <string>
#include <utility>
#include "content/browser/renderer_host/media/media_stream_manager.h"
#include "content/browser/renderer_host/media/media_stream_requester.h"
#include "content/common/content_export.h"
#include "content/common/media/media_stream_options.h"
#include "content/public/browser/browser_message_filter.h"
namespace content {
class ResourceContext;
} // namespace content
namespace media_stream {
// MediaStreamDispatcherHost is a delegate for Media Stream API messages used by
// MediaStreamImpl. It's the complement of MediaStreamDispatcher
// (owned by RenderView).
class CONTENT_EXPORT MediaStreamDispatcherHost
: public content::BrowserMessageFilter,
public MediaStreamRequester {
public:
MediaStreamDispatcherHost(content::ResourceContext* resource_context,
int render_process_id,
media::AudioManager* audio_manager);
// MediaStreamRequester implementation.
virtual void StreamGenerated(
const std::string& label,
const StreamDeviceInfoArray& audio_devices,
const StreamDeviceInfoArray& video_devices) OVERRIDE;
virtual void StreamGenerationFailed(const std::string& label) OVERRIDE;
virtual void AudioDeviceFailed(const std::string& label, int index) OVERRIDE;
virtual void VideoDeviceFailed(const std::string& label, int index) OVERRIDE;
virtual void DevicesEnumerated(const std::string& label,
const StreamDeviceInfoArray& devices) OVERRIDE;
virtual void DevicesEnumerationFailed(const std::string& label) OVERRIDE;
virtual void DeviceOpened(const std::string& label,
const StreamDeviceInfo& video_device) OVERRIDE;
virtual void DeviceOpenFailed(const std::string& label) OVERRIDE;
// content::BrowserMessageFilter implementation.
virtual bool OnMessageReceived(const IPC::Message& message,
bool* message_was_ok) OVERRIDE;
virtual void OnChannelClosing() OVERRIDE;
protected:
virtual ~MediaStreamDispatcherHost();
private:
friend class MockMediaStreamDispatcherHost;
void OnGenerateStream(int render_view_id,
int page_request_id,
const StreamOptions& components,
const GURL& security_origin);
void OnCancelGenerateStream(int render_view_id,
int page_request_id);
void OnStopGeneratedStream(int render_view_id, const std::string& label);
void OnEnumerateDevices(int render_view_id,
int page_request_id,
media_stream::MediaStreamType type,
const GURL& security_origin);
void OnOpenDevice(int render_view_id,
int page_request_id,
const std::string& device_id,
media_stream::MediaStreamType type,
const GURL& security_origin);
// Returns the media stream manager to forward events to,
// creating one if needed.
MediaStreamManager* manager();
content::ResourceContext* resource_context_;
int render_process_id_;
media::AudioManager* audio_manager_;
struct StreamRequest;
typedef std::map<std::string, StreamRequest> StreamMap;
// Streams generated for this host.
StreamMap streams_;
DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcherHost);
};
} // namespace media_stream
#endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_DISPATCHER_HOST_H_
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