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/* -*- Mode: C++; tab-width: 8; 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/Touch.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/dom/TouchEvent.h"
#include "nsGlobalWindow.h"
#include "nsContentUtils.h"
#include "nsIContent.h"
namespace mozilla {
namespace dom {
// static
already_AddRefed<Touch>
Touch::Constructor(const GlobalObject& aGlobal,
const TouchInit& aParam,
ErrorResult& aRv)
{
// Annoyingly many parameters, make sure the ordering is the same as in the
// Touch constructor.
RefPtr<Touch> touch = new Touch(aParam.mTarget,
aParam.mIdentifier,
aParam.mPageX,
aParam.mPageY,
aParam.mScreenX,
aParam.mScreenY,
aParam.mClientX,
aParam.mClientY,
aParam.mRadiusX,
aParam.mRadiusY,
aParam.mRotationAngle,
aParam.mForce);
return touch.forget();
}
Touch::Touch(EventTarget* aTarget,
int32_t aIdentifier,
int32_t aPageX,
int32_t aPageY,
int32_t aScreenX,
int32_t aScreenY,
int32_t aClientX,
int32_t aClientY,
int32_t aRadiusX,
int32_t aRadiusY,
float aRotationAngle,
float aForce)
{
mTarget = aTarget;
mIdentifier = aIdentifier;
mPagePoint = CSSIntPoint(aPageX, aPageY);
mScreenPoint = CSSIntPoint(aScreenX, aScreenY);
mClientPoint = CSSIntPoint(aClientX, aClientY);
mRefPoint = LayoutDeviceIntPoint(0, 0);
mPointsInitialized = true;
mRadius.x = aRadiusX;
mRadius.y = aRadiusY;
mRotationAngle = aRotationAngle;
mForce = aForce;
mChanged = false;
mMessage = 0;
nsJSContext::LikelyShortLivingObjectCreated();
}
Touch::Touch(int32_t aIdentifier,
LayoutDeviceIntPoint aPoint,
LayoutDeviceIntPoint aRadius,
float aRotationAngle,
float aForce)
{
mIdentifier = aIdentifier;
mPagePoint = CSSIntPoint(0, 0);
mScreenPoint = CSSIntPoint(0, 0);
mClientPoint = CSSIntPoint(0, 0);
mRefPoint = aPoint;
mPointsInitialized = false;
mRadius = aRadius;
mRotationAngle = aRotationAngle;
mForce = aForce;
mChanged = false;
mMessage = 0;
nsJSContext::LikelyShortLivingObjectCreated();
}
Touch::Touch(const Touch& aOther)
: mTarget(aOther.mTarget)
, mRefPoint(aOther.mRefPoint)
, mChanged(aOther.mChanged)
, mMessage(aOther.mMessage)
, mIdentifier(aOther.mIdentifier)
, mPagePoint(aOther.mPagePoint)
, mClientPoint(aOther.mClientPoint)
, mScreenPoint(aOther.mScreenPoint)
, mRadius(aOther.mRadius)
, mRotationAngle(aOther.mRotationAngle)
, mForce(aOther.mForce)
, mPointsInitialized(aOther.mPointsInitialized)
{
nsJSContext::LikelyShortLivingObjectCreated();
}
Touch::~Touch()
{
}
// static
bool
Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal)
{
return TouchEvent::PrefEnabled(aCx, aGlobal);
}
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Touch, mTarget)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Touch)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(Touch)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Touch)
EventTarget*
Touch::GetTarget() const
{
nsCOMPtr<nsIContent> content = do_QueryInterface(mTarget);
if (content && content->ChromeOnlyAccess() &&
!nsContentUtils::LegacyIsCallerNativeCode() &&
!nsContentUtils::CanAccessNativeAnon()) {
return content->FindFirstNonChromeOnlyAccessContent();
}
return mTarget;
}
void
Touch::InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent)
{
if (mPointsInitialized) {
return;
}
mClientPoint = Event::GetClientCoords(
aPresContext, aEvent, mRefPoint, mClientPoint);
mPagePoint = Event::GetPageCoords(
aPresContext, aEvent, mRefPoint, mClientPoint);
mScreenPoint = Event::GetScreenCoords(aPresContext, aEvent, mRefPoint);
mPointsInitialized = true;
}
void
Touch::SetTarget(EventTarget* aTarget)
{
mTarget = aTarget;
}
bool
Touch::Equals(Touch* aTouch)
{
return mRefPoint == aTouch->mRefPoint &&
mForce == aTouch->Force() &&
mRotationAngle == aTouch->RotationAngle() &&
mRadius.x == aTouch->RadiusX() &&
mRadius.y == aTouch->RadiusY();
}
JSObject*
Touch::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return TouchBinding::Wrap(aCx, this, aGivenProto);
}
// Parent ourselves to the global of the target. This achieves the desirable
// effects of parenting to the target, but avoids making the touch inaccessible
// when the target happens to be NAC and therefore reflected into the XBL scope.
nsIGlobalObject*
Touch::GetParentObject()
{
if (!mTarget) {
return nullptr;
}
return mTarget->GetOwnerGlobal();
}
} // namespace dom
} // namespace mozilla
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