[b9b36e]: content / events / src / nsDOMMouseScrollEvent.cpp  Maximize  Restore  History

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "nsDOMMouseScrollEvent.h"
nsDOMMouseScrollEvent::nsDOMMouseScrollEvent(mozilla::dom::EventTarget* aOwner,
nsPresContext* aPresContext,
nsInputEvent* aEvent)
: nsDOMMouseEvent(aOwner, aPresContext,
aEvent ? aEvent : new nsMouseScrollEvent(false, 0, nullptr))
{
if (aEvent) {
mEventIsInternal = false;
} else {
mEventIsInternal = true;
mEvent->time = PR_Now();
mEvent->refPoint.x = mEvent->refPoint.y = 0;
static_cast<nsMouseEvent*>(mEvent)->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
}
if(mEvent->eventStructType == NS_MOUSE_SCROLL_EVENT) {
mDetail = static_cast<nsMouseScrollEvent*>(mEvent)->delta;
}
}
nsDOMMouseScrollEvent::~nsDOMMouseScrollEvent()
{
if (mEventIsInternal && mEvent) {
switch (mEvent->eventStructType)
{
case NS_MOUSE_SCROLL_EVENT:
delete static_cast<nsMouseScrollEvent*>(mEvent);
break;
default:
delete mEvent;
break;
}
mEvent = nullptr;
}
}
NS_IMPL_ADDREF_INHERITED(nsDOMMouseScrollEvent, nsDOMMouseEvent)
NS_IMPL_RELEASE_INHERITED(nsDOMMouseScrollEvent, nsDOMMouseEvent)
NS_INTERFACE_MAP_BEGIN(nsDOMMouseScrollEvent)
NS_INTERFACE_MAP_ENTRY(nsIDOMMouseScrollEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMMouseEvent)
NS_IMETHODIMP
nsDOMMouseScrollEvent::InitMouseScrollEvent(const nsAString & aType, bool aCanBubble, bool aCancelable,
nsIDOMWindow *aView, int32_t aDetail, int32_t aScreenX,
int32_t aScreenY, int32_t aClientX, int32_t aClientY,
bool aCtrlKey, bool aAltKey, bool aShiftKey,
bool aMetaKey, uint16_t aButton, nsIDOMEventTarget *aRelatedTarget,
int32_t aAxis)
{
nsresult rv = nsDOMMouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable, aView, aDetail,
aScreenX, aScreenY, aClientX, aClientY, aCtrlKey,
aAltKey, aShiftKey, aMetaKey, aButton, aRelatedTarget);
NS_ENSURE_SUCCESS(rv, rv);
if (mEvent->eventStructType == NS_MOUSE_SCROLL_EVENT) {
static_cast<nsMouseScrollEvent*>(mEvent)->isHorizontal =
(aAxis == HORIZONTAL_AXIS);
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMMouseScrollEvent::GetAxis(int32_t* aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = Axis();
return NS_OK;
}
int32_t
nsDOMMouseScrollEvent::Axis()
{
if (mEvent->eventStructType == NS_MOUSE_SCROLL_EVENT) {
return static_cast<nsMouseScrollEvent*>(mEvent)->isHorizontal ?
static_cast<int32_t>(HORIZONTAL_AXIS) :
static_cast<int32_t>(VERTICAL_AXIS);
}
return 0;
}
nsresult NS_NewDOMMouseScrollEvent(nsIDOMEvent** aInstancePtrResult,
mozilla::dom::EventTarget* aOwner,
nsPresContext* aPresContext,
nsInputEvent *aEvent)
{
nsDOMMouseScrollEvent* it =
new nsDOMMouseScrollEvent(aOwner, aPresContext, aEvent);
return CallQueryInterface(it, aInstancePtrResult);
}

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