gecko-dev/dom/ipc/CoalescedMouseData.h
2017-09-20 11:57:56 +08:00

69 lines
1.7 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_CoalescedMouseData_h
#define mozilla_dom_CoalescedMouseData_h
#include "CoalescedInputData.h"
#include "mozilla/MouseEvents.h"
#include "nsRefreshDriver.h"
namespace mozilla {
namespace dom {
class CoalescedMouseData final : public CoalescedInputData<WidgetMouseEvent>
{
public:
CoalescedMouseData()
{
MOZ_COUNT_CTOR(mozilla::dom::CoalescedMouseData);
}
~CoalescedMouseData()
{
MOZ_COUNT_DTOR(mozilla::dom::CoalescedMouseData);
}
void Coalesce(const WidgetMouseEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId);
bool CanCoalesce(const WidgetMouseEvent& aEvent,
const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId);
};
class CoalescedMouseMoveFlusher final : public nsARefreshObserver {
public:
explicit CoalescedMouseMoveFlusher(TabChild* aTabChild)
: mTabChild(aTabChild)
{
MOZ_ASSERT(mTabChild);
}
virtual void WillRefresh(mozilla::TimeStamp aTime) override;
NS_INLINE_DECL_REFCOUNTING(CoalescedMouseMoveFlusher, override)
void StartObserver();
void RemoveObserver();
private:
~CoalescedMouseMoveFlusher() {
RemoveObserver();
}
nsRefreshDriver* GetRefreshDriver();
TabChild* mTabChild;
RefPtr<nsRefreshDriver> mRefreshDriver;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_CoalescedMouseData_h