gecko-dev/dom/events/PointerEvent.cpp

151 lines
4.4 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/.
*
* Portions Copyright 2013 Microsoft Open Technologies, Inc. */
#include "PointerEvent.h"
#include "mozilla/MouseEvents.h"
#include "prtime.h"
namespace mozilla {
namespace dom {
PointerEvent::PointerEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetPointerEvent* aEvent)
: nsDOMMouseEvent(aOwner, aPresContext, aEvent ? aEvent : new WidgetPointerEvent(false, 0, nullptr))
{
NS_ASSERTION(mEvent->eventStructType == NS_POINTER_EVENT, "event type mismatch NS_POINTER_EVENT");
WidgetMouseEvent* mouseEvent = mEvent->AsMouseEvent();
if (aEvent) {
mEventIsInternal = false;
} else {
mEventIsInternal = true;
mEvent->time = PR_Now();
mEvent->refPoint.x = mEvent->refPoint.y = 0;
mouseEvent->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
}
}
static uint16_t
ConvertStringToPointerType(const nsAString& aPointerTypeArg)
{
if (aPointerTypeArg.EqualsLiteral("mouse")) {
return nsIDOMMouseEvent::MOZ_SOURCE_MOUSE;
}
if (aPointerTypeArg.EqualsLiteral("pen")) {
return nsIDOMMouseEvent::MOZ_SOURCE_PEN;
}
if (aPointerTypeArg.EqualsLiteral("touch")) {
return nsIDOMMouseEvent::MOZ_SOURCE_TOUCH;
}
return nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
}
//static
already_AddRefed<PointerEvent>
PointerEvent::Constructor(const mozilla::dom::GlobalObject& aGlobal,
const nsAString& aType,
const mozilla::dom::PointerEventInit& aParam,
mozilla::ErrorResult& aRv)
{
nsCOMPtr<mozilla::dom::EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
nsRefPtr<PointerEvent> e = new PointerEvent(t, nullptr, nullptr);
bool trusted = e->Init(t);
aRv = e->InitMouseEvent(aType, aParam.mBubbles, aParam.mCancelable,
aParam.mView, aParam.mDetail, aParam.mScreenX,
aParam.mScreenY, aParam.mClientX, aParam.mClientY,
aParam.mCtrlKey, aParam.mAltKey, aParam.mShiftKey,
aParam.mMetaKey, aParam.mButton, aParam.mRelatedTarget);
if (aRv.Failed()) {
return nullptr;
}
WidgetPointerEvent* widgetEvent = e->mEvent->AsPointerEvent();
widgetEvent->pointerId = aParam.mPointerId;
widgetEvent->width = aParam.mWidth;
widgetEvent->height = aParam.mHeight;
widgetEvent->pressure = aParam.mPressure;
widgetEvent->tiltX = aParam.mTiltX;
widgetEvent->tiltY = aParam.mTiltY;
widgetEvent->inputSource = ConvertStringToPointerType(aParam.mPointerType);
widgetEvent->isPrimary = aParam.mIsPrimary;
widgetEvent->buttons = aParam.mButtons;
e->SetTrusted(trusted);
return e.forget();
}
void
PointerEvent::GetPointerType(nsAString& aPointerType)
{
switch (mEvent->AsPointerEvent()->inputSource) {
case nsIDOMMouseEvent::MOZ_SOURCE_MOUSE:
aPointerType.AssignLiteral("mouse");
break;
case nsIDOMMouseEvent::MOZ_SOURCE_PEN:
aPointerType.AssignLiteral("pen");
break;
case nsIDOMMouseEvent::MOZ_SOURCE_TOUCH:
aPointerType.AssignLiteral("touch");
break;
case nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN:
aPointerType.AssignLiteral("");
break;
}
}
int32_t PointerEvent::PointerId()
{
return mEvent->AsPointerEvent()->pointerId;
}
int32_t PointerEvent::Width()
{
return mEvent->AsPointerEvent()->width;
}
int32_t PointerEvent::Height()
{
return mEvent->AsPointerEvent()->height;
}
float PointerEvent::Pressure()
{
return mEvent->AsPointerEvent()->pressure;
}
int32_t PointerEvent::TiltX()
{
return mEvent->AsPointerEvent()->tiltX;
}
int32_t PointerEvent::TiltY()
{
return mEvent->AsPointerEvent()->tiltY;
}
bool PointerEvent::IsPrimary()
{
return mEvent->AsPointerEvent()->isPrimary;
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
nsresult NS_NewDOMPointerEvent(nsIDOMEvent** aInstancePtrResult,
dom::EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetPointerEvent *aEvent)
{
dom::PointerEvent *it = new dom::PointerEvent(aOwner, aPresContext, aEvent);
return CallQueryInterface(it, aInstancePtrResult);
}