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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.
*/
/* From private/ppb_input_event_private.idl,
* modified Tue May 20 18:31:39 2014.
*/
#ifndef PPAPI_C_PRIVATE_PPB_INPUT_EVENT_PRIVATE_H_
#define PPAPI_C_PRIVATE_PPB_INPUT_EVENT_PRIVATE_H_
#include "ppapi/c/pp_bool.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/c/pp_macros.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/c/pp_stdint.h"
#define PPB_INPUTEVENT_PRIVATE_INTERFACE_0_1 "PPB_InputEvent_Private;0.1"
#define PPB_INPUTEVENT_PRIVATE_INTERFACE PPB_INPUTEVENT_PRIVATE_INTERFACE_0_1
/**
* @file
* This file defines the PPB_InputEvent_Private interfaces.
*/
/**
* @addtogroup Interfaces
* @{
*/
/**
* The <code>PPB_InputEvent_Private</code> interface contains pointers to
several
* functions related to generic input events on the browser.
*/
struct PPB_InputEvent_Private_0_1 {
/**
* TraceInputLatency() traces the latency of the input event. The input
* latency is shown in the trace viewer. The starting point of the input
* latency is when the input event is sent from renderer to plugin. If the
* input event does not cause any rendering damage, the end point of input
* latency is when TraceInputLatency() is called on the event. If the input
* event does cause rendering damage, the end point of input latency is when
* the resulted plugin frame eventually reaches screen.
*
* Notes: In the current version, only Graphics2D damage is considered as
* rendering damage. And it works only when the Graphics2Ds are bound to
* the plugin instance.
*
* @param[in] event A <code>PP_Resource</code> corresponding to an input
* event.
*
* @param[in] has_damage A bool indicating whether the event has caused any
* rendering damage.
*
* @return <code>PP_TRUE</code> if the latency for the given event is tracked.
*/
PP_Bool (*TraceInputLatency)(PP_Resource event, PP_Bool has_damage);
/**
* StartTrackingLatency() requests input latency to be tracked.
*
* Without calling StartTrackingLatency() first, TraceInputLatency() won't
* take effect.
*
* @param[in] instance The <code>PP_Instance</code> of the instance requesting
* to start tracking input latency.
*/
void (*StartTrackingLatency)(PP_Instance instance);
};
typedef struct PPB_InputEvent_Private_0_1 PPB_InputEvent_Private;
/**
* @}
*/
#endif /* PPAPI_C_PRIVATE_PPB_INPUT_EVENT_PRIVATE_H_ */