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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_REQUESTER_H_
#define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_REQUESTER_H_
#include <string>
#include "content/common/content_export.h"
#include "content/common/media/media_stream_options.h"
namespace content {
// MediaStreamRequester must be implemented by the class requesting a new media
// stream to be opened. MediaStreamManager will use this interface to signal
// success and error for a request.
class CONTENT_EXPORT MediaStreamRequester {
public:
// Called as a reply of a successful call to GenerateStream.
virtual void StreamGenerated(int render_view_id,
int page_request_id,
const std::string& label,
const StreamDeviceInfoArray& audio_devices,
const StreamDeviceInfoArray& video_devices) = 0;
// Called if GenerateStream failed.
virtual void StreamGenerationFailed(
int render_view_id,
int page_request_id,
content::MediaStreamRequestResult result) = 0;
// Called if a device has been stopped by a user from UI or the device
// has become unavailable. |render_view_id| is the render view that requested
// the device and |label| is the label of the request|.
virtual void DeviceStopped(int render_view_id,
const std::string& label,
const StreamDeviceInfo& device) = 0;
// Called as a reply of a successful call to EnumerateDevices.
virtual void DevicesEnumerated(int render_view_id,
int page_request_id,
const std::string& label,
const StreamDeviceInfoArray& devices) = 0;
// Called as a reply of a successful call to OpenDevice.
virtual void DeviceOpened(int render_view_id,
int page_request_id,
const std::string& label,
const StreamDeviceInfo& device_info) = 0;
protected:
virtual ~MediaStreamRequester() {
}
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MEDIA_STREAM_REQUESTER_H_
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