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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_RENDERER_GPU_INPUT_HANDLER_MANAGER_CLIENT_H_
#define CONTENT_RENDERER_GPU_INPUT_HANDLER_MANAGER_CLIENT_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/callback_forward.h"
#include "content/common/content_export.h"
#include "ui/gfx/vector2d_f.h"
namespace ui {
struct LatencyInfo;
}
namespace cc {
class InputHandler;
struct DidOverscrollParams;
}
namespace WebKit {
class WebInputEvent;
}
namespace content {
class CONTENT_EXPORT InputHandlerManagerClient {
public:
virtual ~InputHandlerManagerClient() {}
// The Manager will supply a |handler| when bound to the client. This is valid
// until the manager shuts down, at which point it supplies a null |handler|.
// The client should only makes calls to |handler| on the compositor thread.
typedef base::Callback<
InputEventAckState(int /*routing_id*/,
const WebKit::WebInputEvent*,
const ui::LatencyInfo& latency_info)> Handler;
// Called from the main thread.
virtual void SetBoundHandler(const Handler& handler) = 0;
// Called from the compositor thread.
virtual void DidAddInputHandler(int routing_id,
cc::InputHandler* input_handler) = 0;
virtual void DidRemoveInputHandler(int routing_id) = 0;
virtual void DidOverscroll(int routing_id,
const cc::DidOverscrollParams& params) = 0;
protected:
InputHandlerManagerClient() {}
private:
DISALLOW_COPY_AND_ASSIGN(InputHandlerManagerClient);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_INPUT_HANDLER_MANAGER_CLIENT_H_
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