gecko-dev/dom/events/MouseScrollEvent.cpp

101 lines
3.4 KiB
C++

/* -*- 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 "mozilla/dom/MouseScrollEvent.h"
#include "mozilla/MouseEvents.h"
#include "prtime.h"
namespace mozilla {
namespace dom {
MouseScrollEvent::MouseScrollEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetMouseScrollEvent* aEvent)
: MouseEvent(aOwner, aPresContext,
aEvent ? aEvent : new WidgetMouseScrollEvent(false, 0, nullptr))
{
if (aEvent) {
mEventIsInternal = false;
} else {
mEventIsInternal = true;
mEvent->time = PR_Now();
mEvent->refPoint.x = mEvent->refPoint.y = 0;
static_cast<WidgetMouseEventBase*>(mEvent)->inputSource =
nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
}
mDetail = mEvent->AsMouseScrollEvent()->delta;
}
NS_IMPL_ADDREF_INHERITED(MouseScrollEvent, MouseEvent)
NS_IMPL_RELEASE_INHERITED(MouseScrollEvent, MouseEvent)
NS_INTERFACE_MAP_BEGIN(MouseScrollEvent)
NS_INTERFACE_MAP_ENTRY(nsIDOMMouseScrollEvent)
NS_INTERFACE_MAP_END_INHERITING(MouseEvent)
NS_IMETHODIMP
MouseScrollEvent::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 =
MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable, aView, aDetail,
aScreenX, aScreenY, aClientX, aClientY,
aCtrlKey, aAltKey, aShiftKey, aMetaKey, aButton,
aRelatedTarget);
NS_ENSURE_SUCCESS(rv, rv);
mEvent->AsMouseScrollEvent()->isHorizontal = (aAxis == HORIZONTAL_AXIS);
return NS_OK;
}
NS_IMETHODIMP
MouseScrollEvent::GetAxis(int32_t* aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = Axis();
return NS_OK;
}
int32_t
MouseScrollEvent::Axis()
{
return mEvent->AsMouseScrollEvent()->isHorizontal ?
static_cast<int32_t>(HORIZONTAL_AXIS) :
static_cast<int32_t>(VERTICAL_AXIS);
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
using namespace dom;
nsresult
NS_NewDOMMouseScrollEvent(nsIDOMEvent** aInstancePtrResult,
EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetMouseScrollEvent* aEvent)
{
MouseScrollEvent* it = new MouseScrollEvent(aOwner, aPresContext, aEvent);
NS_ADDREF(it);
*aInstancePtrResult = static_cast<Event*>(it);
return NS_OK;
}