forked from mirrors/gecko-dev
f54b118ead
We implement PointerEvent.getCoalescedEvents as 1. Clone the widget events we coalesced. 2. Convert them to dom::PointerEvent when user calls getCoalescedEvents. MozReview-Commit-ID: 8IKw4PbUsDD
115 lines
4 KiB
C++
115 lines
4 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/. */
|
|
#include "base/basictypes.h"
|
|
|
|
#include "CoalescedMouseData.h"
|
|
#include "TabChild.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::dom;
|
|
|
|
void
|
|
CoalescedMouseData::Coalesce(const WidgetMouseEvent& aEvent,
|
|
const ScrollableLayerGuid& aGuid,
|
|
const uint64_t& aInputBlockId)
|
|
{
|
|
if (IsEmpty()) {
|
|
mCoalescedInputEvent = MakeUnique<WidgetMouseEvent>(aEvent);
|
|
mGuid = aGuid;
|
|
mInputBlockId = aInputBlockId;
|
|
MOZ_ASSERT(!mCoalescedInputEvent->mCoalescedWidgetEvents);
|
|
} else {
|
|
MOZ_ASSERT(mGuid == aGuid);
|
|
MOZ_ASSERT(mInputBlockId == aInputBlockId);
|
|
MOZ_ASSERT(mCoalescedInputEvent->mModifiers == aEvent.mModifiers);
|
|
MOZ_ASSERT(mCoalescedInputEvent->mReason == aEvent.mReason);
|
|
MOZ_ASSERT(mCoalescedInputEvent->inputSource == aEvent.inputSource);
|
|
MOZ_ASSERT(mCoalescedInputEvent->button == aEvent.button);
|
|
MOZ_ASSERT(mCoalescedInputEvent->buttons == aEvent.buttons);
|
|
mCoalescedInputEvent->mTimeStamp = aEvent.mTimeStamp;
|
|
mCoalescedInputEvent->mRefPoint = aEvent.mRefPoint;
|
|
mCoalescedInputEvent->pressure = aEvent.pressure;
|
|
mCoalescedInputEvent->AssignPointerHelperData(aEvent);
|
|
}
|
|
|
|
if (aEvent.mMessage == eMouseMove &&
|
|
PointerEventHandler::IsPointerEventEnabled()) {
|
|
// PointerEvent::getCoalescedEvents is only applied to pointermove events.
|
|
if (!mCoalescedInputEvent->mCoalescedWidgetEvents) {
|
|
mCoalescedInputEvent->mCoalescedWidgetEvents =
|
|
new WidgetPointerEventHolder();
|
|
}
|
|
// Append current event in mCoalescedWidgetEvents. We use them to generate
|
|
// DOM events when content calls PointerEvent::getCoalescedEvents.
|
|
WidgetPointerEvent* event = mCoalescedInputEvent->mCoalescedWidgetEvents
|
|
->mEvents.AppendElement(aEvent);
|
|
|
|
event->mFlags.mBubbles = false;
|
|
event->mFlags.mCancelable = false;
|
|
}
|
|
}
|
|
|
|
bool
|
|
CoalescedMouseData::CanCoalesce(const WidgetMouseEvent& aEvent,
|
|
const ScrollableLayerGuid& aGuid,
|
|
const uint64_t& aInputBlockId)
|
|
{
|
|
MOZ_ASSERT(aEvent.mMessage == eMouseMove);
|
|
return !mCoalescedInputEvent ||
|
|
(mCoalescedInputEvent->mModifiers == aEvent.mModifiers &&
|
|
mCoalescedInputEvent->inputSource == aEvent.inputSource &&
|
|
mCoalescedInputEvent->pointerId == aEvent.pointerId &&
|
|
mCoalescedInputEvent->button == aEvent.button &&
|
|
mCoalescedInputEvent->buttons == aEvent.buttons &&
|
|
mGuid == aGuid &&
|
|
mInputBlockId == aInputBlockId);
|
|
}
|
|
|
|
|
|
void
|
|
CoalescedMouseMoveFlusher::WillRefresh(mozilla::TimeStamp aTime)
|
|
{
|
|
MOZ_ASSERT(mRefreshDriver);
|
|
mTabChild->FlushAllCoalescedMouseData();
|
|
mTabChild->ProcessPendingCoalescedMouseDataAndDispatchEvents();
|
|
}
|
|
|
|
void
|
|
CoalescedMouseMoveFlusher::StartObserver()
|
|
{
|
|
nsRefreshDriver* refreshDriver = GetRefreshDriver();
|
|
if (mRefreshDriver && mRefreshDriver == refreshDriver) {
|
|
// Nothing to do if we already added an observer and it's same refresh driver.
|
|
return;
|
|
}
|
|
RemoveObserver();
|
|
if (refreshDriver) {
|
|
mRefreshDriver = refreshDriver;
|
|
DebugOnly<bool> success =
|
|
mRefreshDriver->AddRefreshObserver(this, FlushType::Event);
|
|
MOZ_ASSERT(success);
|
|
}
|
|
}
|
|
|
|
void
|
|
CoalescedMouseMoveFlusher::RemoveObserver()
|
|
{
|
|
if (mRefreshDriver) {
|
|
mRefreshDriver->RemoveRefreshObserver(this, FlushType::Event);
|
|
mRefreshDriver = nullptr;
|
|
}
|
|
}
|
|
|
|
nsRefreshDriver*
|
|
CoalescedMouseMoveFlusher::GetRefreshDriver()
|
|
{
|
|
nsCOMPtr<nsIPresShell> presShell = mTabChild->GetPresShell();
|
|
if (!presShell || !presShell->GetPresContext() ||
|
|
!presShell->GetPresContext()->RefreshDriver()) {
|
|
return nullptr;
|
|
}
|
|
return presShell->GetPresContext()->RefreshDriver();
|
|
}
|