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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_DEVTOOLS_PROTOCOL_FRAME_RECORDER_H_
#define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_FRAME_RECORDER_H_
#include <string>
#include <utility>
#include <vector>
#include "base/callback.h"
#include "base/cancelable_callback.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "content/browser/devtools/protocol/devtools_protocol_handler.h"
#include "content/public/browser/readback_types.h"
class SkBitmap;
namespace content {
class RenderViewHostImpl;
namespace devtools {
namespace page {
using EncodedFrame = std::pair<std::string, double>;
class FrameRecorder {
public:
using Response = DevToolsProtocolClient::Response;
using StopRecordingFramesCallback =
base::Callback<void(scoped_refptr<StopRecordingFramesResponse>)>;
explicit FrameRecorder();
virtual ~FrameRecorder();
Response StartRecordingFrames(int max_frame_count);
Response StopRecordingFrames(StopRecordingFramesCallback callback);
Response CancelRecordingFrames();
void SetRenderViewHost(RenderViewHostImpl* host);
void OnSwapCompositorFrame();
private:
enum State {
Ready,
Recording,
Encoding
};
void FrameCaptured(const SkBitmap& bitmap, ReadbackResponse response);
void FrameEncoded(const scoped_ptr<EncodedFrame>& encoded_frame);
void MaybeSendResponse();
RenderViewHostImpl* host_;
State state_;
StopRecordingFramesCallback callback_;
size_t inflight_requests_count_;
size_t max_frame_count_;
size_t captured_frames_count_;
base::Time last_captured_frame_timestamp_;
std::vector<scoped_refptr<devtools::page::RecordedFrame>> frames_;
base::CancelableCallback<void(const scoped_ptr<EncodedFrame>&)>
frame_encoded_callback_;
base::WeakPtrFactory<FrameRecorder> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(FrameRecorder);
};
} // namespace page
} // namespace devtools
} // namespace content
#endif // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_FRAME_RECORDER_H_
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