mirror of
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0518b15392
Differential Revision: https://phabricator.services.mozilla.com/D18232 --HG-- extra : moz-landing-system : lando
205 lines
6.0 KiB
C++
205 lines
6.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/Touch.h"
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#include "mozilla/dom/EventTarget.h"
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#include "mozilla/dom/TouchEvent.h"
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#include "nsGlobalWindow.h"
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#include "nsContentUtils.h"
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#include "nsIContent.h"
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namespace mozilla {
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namespace dom {
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// static
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already_AddRefed<Touch> Touch::Constructor(const GlobalObject& aGlobal,
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const TouchInit& aParam,
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ErrorResult& aRv) {
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// Annoyingly many parameters, make sure the ordering is the same as in the
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// Touch constructor.
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RefPtr<Touch> touch = new Touch(
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aParam.mTarget, aParam.mIdentifier, aParam.mPageX, aParam.mPageY,
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aParam.mScreenX, aParam.mScreenY, aParam.mClientX, aParam.mClientY,
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aParam.mRadiusX, aParam.mRadiusY, aParam.mRotationAngle, aParam.mForce);
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return touch.forget();
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}
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Touch::Touch(EventTarget* aTarget, int32_t aIdentifier, int32_t aPageX,
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int32_t aPageY, int32_t aScreenX, int32_t aScreenY,
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int32_t aClientX, int32_t aClientY, int32_t aRadiusX,
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int32_t aRadiusY, float aRotationAngle, float aForce)
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: mIsTouchEventSuppressed(false) {
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mTarget = aTarget;
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mOriginalTarget = aTarget;
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mIdentifier = aIdentifier;
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mPagePoint = CSSIntPoint(aPageX, aPageY);
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mScreenPoint = CSSIntPoint(aScreenX, aScreenY);
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mClientPoint = CSSIntPoint(aClientX, aClientY);
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mRefPoint = LayoutDeviceIntPoint(0, 0);
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mPointsInitialized = true;
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mRadius.x = aRadiusX;
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mRadius.y = aRadiusY;
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mRotationAngle = aRotationAngle;
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mForce = aForce;
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mChanged = false;
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mMessage = 0;
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nsJSContext::LikelyShortLivingObjectCreated();
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}
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Touch::Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
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LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce)
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: mIsTouchEventSuppressed(false) {
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mIdentifier = aIdentifier;
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mPagePoint = CSSIntPoint(0, 0);
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mScreenPoint = CSSIntPoint(0, 0);
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mClientPoint = CSSIntPoint(0, 0);
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mRefPoint = aPoint;
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mPointsInitialized = false;
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mRadius = aRadius;
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mRotationAngle = aRotationAngle;
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mForce = aForce;
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mChanged = false;
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mMessage = 0;
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nsJSContext::LikelyShortLivingObjectCreated();
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}
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Touch::Touch(const Touch& aOther)
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: mOriginalTarget(aOther.mOriginalTarget),
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mTarget(aOther.mTarget),
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mRefPoint(aOther.mRefPoint),
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mChanged(aOther.mChanged),
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mIsTouchEventSuppressed(aOther.mIsTouchEventSuppressed),
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mMessage(aOther.mMessage),
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mIdentifier(aOther.mIdentifier),
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mPagePoint(aOther.mPagePoint),
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mClientPoint(aOther.mClientPoint),
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mScreenPoint(aOther.mScreenPoint),
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mRadius(aOther.mRadius),
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mRotationAngle(aOther.mRotationAngle),
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mForce(aOther.mForce),
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mPointsInitialized(aOther.mPointsInitialized) {
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nsJSContext::LikelyShortLivingObjectCreated();
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}
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Touch::~Touch() {}
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// static
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bool Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal) {
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return TouchEvent::PrefEnabled(aCx, aGlobal);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Touch, mTarget, mOriginalTarget)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Touch)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(Touch)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(Touch)
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EventTarget* Touch::GetTarget() const {
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nsCOMPtr<nsIContent> content = do_QueryInterface(mTarget);
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if (content && content->ChromeOnlyAccess() &&
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!nsContentUtils::LegacyIsCallerNativeCode() &&
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!nsContentUtils::CanAccessNativeAnon()) {
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return content->FindFirstNonChromeOnlyAccessContent();
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}
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return mTarget;
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}
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int32_t Touch::ScreenX(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return ClientX();
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}
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return mScreenPoint.x;
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}
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int32_t Touch::ScreenY(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return ClientY();
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}
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return mScreenPoint.y;
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}
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int32_t Touch::RadiusX(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return 0;
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}
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return mRadius.x;
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}
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int32_t Touch::RadiusY(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return 0;
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}
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return mRadius.y;
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}
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float Touch::RotationAngle(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return 0.0f;
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}
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return mRotationAngle;
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}
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float Touch::Force(CallerType aCallerType) const {
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if (nsContentUtils::ResistFingerprinting(aCallerType)) {
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return 0.0f;
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}
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return mForce;
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}
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void Touch::InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent) {
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if (mPointsInitialized) {
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return;
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}
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mClientPoint =
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Event::GetClientCoords(aPresContext, aEvent, mRefPoint, mClientPoint);
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mPagePoint =
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Event::GetPageCoords(aPresContext, aEvent, mRefPoint, mClientPoint);
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mScreenPoint = Event::GetScreenCoords(aPresContext, aEvent, mRefPoint);
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mPointsInitialized = true;
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}
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void Touch::SetTouchTarget(EventTarget* aTarget) {
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mOriginalTarget = aTarget;
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mTarget = aTarget;
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}
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bool Touch::Equals(Touch* aTouch) const {
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return mRefPoint == aTouch->mRefPoint && mForce == aTouch->mForce &&
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mRotationAngle == aTouch->mRotationAngle &&
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mRadius.x == aTouch->mRadius.x && mRadius.y == aTouch->mRadius.y;
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}
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JSObject* Touch::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return Touch_Binding::Wrap(aCx, this, aGivenProto);
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}
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// Parent ourselves to the global of the target. This achieves the desirable
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// effects of parenting to the target, but avoids making the touch inaccessible
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// when the target happens to be NAC and therefore reflected into the XBL scope.
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nsIGlobalObject* Touch::GetParentObject() {
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if (!mOriginalTarget) {
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return nullptr;
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}
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return mOriginalTarget->GetOwnerGlobal();
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}
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} // namespace dom
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} // namespace mozilla
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