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