forked from mirrors/gecko-dev
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_dom_CoalescedInputData_h
|
|
#define mozilla_dom_CoalescedInputData_h
|
|
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "FrameMetrics.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
template<class InputEventType>
|
|
class CoalescedInputData
|
|
{
|
|
protected:
|
|
typedef mozilla::layers::ScrollableLayerGuid ScrollableLayerGuid;
|
|
|
|
UniquePtr<InputEventType> mCoalescedInputEvent;
|
|
ScrollableLayerGuid mGuid;
|
|
uint64_t mInputBlockId;
|
|
|
|
public:
|
|
CoalescedInputData()
|
|
: mInputBlockId(0)
|
|
{
|
|
}
|
|
|
|
void RetrieveDataFrom(CoalescedInputData& aSource)
|
|
{
|
|
mCoalescedInputEvent = Move(aSource.mCoalescedInputEvent);
|
|
mGuid = aSource.mGuid;
|
|
mInputBlockId = aSource.mInputBlockId;
|
|
}
|
|
|
|
bool IsEmpty()
|
|
{
|
|
return !mCoalescedInputEvent;
|
|
}
|
|
|
|
bool CanCoalesce(const InputEventType& aEvent,
|
|
const ScrollableLayerGuid& aGuid,
|
|
const uint64_t& aInputBlockId);
|
|
|
|
UniquePtr<InputEventType> TakeCoalescedEvent()
|
|
{
|
|
return Move(mCoalescedInputEvent);
|
|
}
|
|
|
|
ScrollableLayerGuid GetScrollableLayerGuid()
|
|
{
|
|
return mGuid;
|
|
}
|
|
|
|
uint64_t GetInputBlockId()
|
|
{
|
|
return mInputBlockId;
|
|
}
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_CoalescedInputData_h
|