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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_SYNTHETIC_GESTURE_CONTROLLER_H_
#define CONTENT_BROWSER_RENDERER_HOST_SYNTHETIC_GESTURE_CONTROLLER_H_
#include <map>
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "content/common/content_export.h"
struct ViewHostMsg_BeginPinch_Params;
struct ViewHostMsg_BeginSmoothScroll_Params;
namespace content {
class RenderWidgetHost;
class RenderWidgetHostViewPort;
class SyntheticGesture;
// Controls SyntheticGestures, used to inject synthetic events
// for performance test harness.
class CONTENT_EXPORT SyntheticGestureController {
public:
SyntheticGestureController();
~SyntheticGestureController();
// Initiates a synthetic event stream to simulate a smooth scroll.
void BeginSmoothScroll(RenderWidgetHostViewPort* view,
const ViewHostMsg_BeginSmoothScroll_Params& params);
// Initiates a synthetic event stream to simulate a pinch-to-zoom.
void BeginPinch(RenderWidgetHostViewPort* view,
const ViewHostMsg_BeginPinch_Params& params);
base::TimeDelta GetSyntheticGestureMessageInterval() const;
private:
// Called periodically to advance the active scroll gesture after being
// initiated by OnBeginSmoothScroll.
void OnTimer();
base::RepeatingTimer<SyntheticGestureController> timer_;
RenderWidgetHost* rwh_;
scoped_refptr<SyntheticGesture> pending_synthetic_gesture_;
DISALLOW_COPY_AND_ASSIGN(SyntheticGestureController);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_SYNTHETIC_GESTURE_CONTROLLER_H_
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