Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 233 insertions, 0 deletions

diff --git a/dom/events/Touch.cpp b/dom/events/Touch.cpp
new file mode 100644
index 0000000000..b08643dbbf
--- /dev/null
+++ b/dom/events/Touch.cpp
@@ -0,0 +1,233 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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::dom {
+
+// static
+already_AddRefed<Touch> Touch::Constructor(const GlobalObject& aGlobal,
+                                           const TouchInit& aParam) {
+  // 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)
+    : mIsTouchEventSuppressed(false) {
+  mTarget = aTarget;
+  mOriginalTarget = 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)
+    : mIsTouchEventSuppressed(false) {
+  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(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
+             LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce,
+             int32_t aTiltX, int32_t aTiltY, int32_t aTwist)
+    : Touch(aIdentifier, aPoint, aRadius, aRotationAngle, aForce) {
+  tiltX = aTiltX;
+  tiltY = aTiltY;
+  twist = aTwist;
+}
+
+Touch::Touch(const Touch& aOther)
+    : mOriginalTarget(aOther.mOriginalTarget),
+      mTarget(aOther.mTarget),
+      mRefPoint(aOther.mRefPoint),
+      mChanged(aOther.mChanged),
+      mIsTouchEventSuppressed(aOther.mIsTouchEventSuppressed),
+      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() = default;
+
+// static
+bool Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal) {
+  return TouchEvent::PrefEnabled(aCx, aGlobal);
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Touch, mTarget, mOriginalTarget)
+
+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)
+
+static EventTarget* FindFirstNonChromeOnlyAccessContent(EventTarget* aTarget) {
+  nsIContent* content = nsIContent::FromEventTargetOrNull(aTarget);
+  if (content && content->ChromeOnlyAccess() &&
+      !nsContentUtils::LegacyIsCallerNativeCode() &&
+      !nsContentUtils::CanAccessNativeAnon()) {
+    return content->FindFirstNonChromeOnlyAccessContent();
+  }
+
+  return aTarget;
+}
+
+EventTarget* Touch::GetTarget() const {
+  return FindFirstNonChromeOnlyAccessContent(mTarget);
+}
+
+EventTarget* Touch::GetOriginalTarget() const {
+  return FindFirstNonChromeOnlyAccessContent(mOriginalTarget);
+}
+
+int32_t Touch::ScreenX(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return ClientX();
+  }
+
+  return mScreenPoint.x;
+}
+
+int32_t Touch::ScreenY(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return ClientY();
+  }
+
+  return mScreenPoint.y;
+}
+
+int32_t Touch::RadiusX(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return 0;
+  }
+
+  return mRadius.x;
+}
+
+int32_t Touch::RadiusY(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return 0;
+  }
+
+  return mRadius.y;
+}
+
+float Touch::RotationAngle(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return 0.0f;
+  }
+
+  return mRotationAngle;
+}
+
+float Touch::Force(CallerType aCallerType) const {
+  if (nsContentUtils::ShouldResistFingerprinting(aCallerType, GetParentObject(),
+                                                 RFPTarget::TouchEvents)) {
+    return 0.0f;
+  }
+
+  return mForce;
+}
+
+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).extract();
+  mPointsInitialized = true;
+}
+
+void Touch::SetTouchTarget(EventTarget* aTarget) {
+  mOriginalTarget = aTarget;
+  mTarget = aTarget;
+}
+
+bool Touch::Equals(Touch* aTouch) const {
+  return mRefPoint == aTouch->mRefPoint && mForce == aTouch->mForce &&
+         mRotationAngle == aTouch->mRotationAngle &&
+         mRadius.x == aTouch->mRadius.x && mRadius.y == aTouch->mRadius.y;
+}
+
+void Touch::SetSameAs(const Touch* aTouch) {
+  mRefPoint = aTouch->mRefPoint;
+  mForce = aTouch->mForce;
+  mRotationAngle = aTouch->mRotationAngle;
+  mRadius.x = aTouch->mRadius.x;
+  mRadius.y = aTouch->mRadius.y;
+}
+
+JSObject* Touch::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+  return Touch_Binding::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() const {
+  if (!mOriginalTarget) {
+    return nullptr;
+  }
+  return mOriginalTarget->GetOwnerGlobal();
+}
+
+}  // namespace mozilla::dom