mirror of
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160 lines
4.0 KiB
C++
160 lines
4.0 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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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/TouchBinding.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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Touch::Touch(EventTarget* aTarget,
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int32_t aIdentifier,
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int32_t aPageX,
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int32_t aPageY,
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int32_t aScreenX,
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int32_t aScreenY,
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int32_t aClientX,
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int32_t aClientY,
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int32_t aRadiusX,
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int32_t aRadiusY,
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float aRotationAngle,
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float aForce)
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{
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mTarget = aTarget;
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mIdentifier = aIdentifier;
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mPagePoint = CSSIntPoint(aPageX, aPageY);
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mScreenPoint = nsIntPoint(aScreenX, aScreenY);
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mClientPoint = CSSIntPoint(aClientX, aClientY);
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mRefPoint = nsIntPoint(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,
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nsIntPoint aPoint,
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nsIntPoint aRadius,
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float aRotationAngle,
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float aForce)
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{
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mIdentifier = aIdentifier;
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mPagePoint = CSSIntPoint(0, 0);
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mScreenPoint = nsIntPoint(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()
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{
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}
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// static
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bool
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Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal)
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{
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return TouchEvent::PrefEnabled(aCx, aGlobal);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Touch, mTarget)
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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*
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Touch::GetTarget() const
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{
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nsCOMPtr<nsIContent> content = do_QueryInterface(mTarget);
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if (content && content->ChromeOnlyAccess() &&
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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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void
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Touch::InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent)
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{
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if (mPointsInitialized) {
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return;
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}
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mClientPoint = Event::GetClientCoords(
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aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
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mClientPoint);
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mPagePoint = Event::GetPageCoords(
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aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
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mClientPoint);
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mScreenPoint = Event::GetScreenCoords(aPresContext, aEvent,
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LayoutDeviceIntPoint::FromUntyped(mRefPoint));
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mPointsInitialized = true;
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}
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void
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Touch::SetTarget(EventTarget* aTarget)
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{
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mTarget = aTarget;
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}
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bool
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Touch::Equals(Touch* aTouch)
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{
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return mRefPoint == aTouch->mRefPoint &&
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mForce == aTouch->Force() &&
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mRotationAngle == aTouch->RotationAngle() &&
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mRadius.x == aTouch->RadiusX() &&
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mRadius.y == aTouch->RadiusY();
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}
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JSObject*
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Touch::WrapObject(JSContext* aCx)
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{
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return TouchBinding::Wrap(aCx, this);
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}
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// Parent ourselves to the window 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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EventTarget*
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Touch::GetParentObject()
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{
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if (!mTarget) {
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return nullptr;
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}
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nsCOMPtr<nsPIDOMWindow> outer = do_QueryInterface(mTarget->GetOwnerGlobal());
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if (!outer) {
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return nullptr;
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}
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MOZ_ASSERT(outer->IsOuterWindow());
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return static_cast<nsGlobalWindow*>(outer->GetCurrentInnerWindow());
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}
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} // namespace dom
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} // namespace mozilla
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