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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_INPUT_INPUT_ACK_HANDLER_H_
#define CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ACK_HANDLER_H_
#include "base/basictypes.h"
#include "content/browser/renderer_host/event_with_latency_info.h"
#include "content/common/input/input_event_ack_state.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
namespace content {
// Provided customized ack response for input events.
class CONTENT_EXPORT InputAckHandler {
public:
virtual ~InputAckHandler() {}
// Called upon event ack receipt from the renderer.
virtual void OnKeyboardEventAck(const NativeWebKeyboardEvent& event,
InputEventAckState ack_result) = 0;
virtual void OnWheelEventAck(const MouseWheelEventWithLatencyInfo& event,
InputEventAckState ack_result) = 0;
virtual void OnTouchEventAck(const TouchEventWithLatencyInfo& event,
InputEventAckState ack_result) = 0;
virtual void OnGestureEventAck(const GestureEventWithLatencyInfo& event,
InputEventAckState ack_result) = 0;
enum UnexpectedEventAckType {
UNEXPECTED_ACK,
UNEXPECTED_EVENT_TYPE,
BAD_ACK_MESSAGE
};
virtual void OnUnexpectedEventAck(UnexpectedEventAckType type) = 0;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ACK_HANDLER_H_
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