michael@0: /* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/dom/Touch.h"
michael@0: 
michael@0: #include "mozilla/dom/EventTarget.h"
michael@0: #include "mozilla/dom/TouchBinding.h"
michael@0: #include "mozilla/dom/TouchEvent.h"
michael@0: #include "nsGlobalWindow.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsIContent.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: Touch::Touch(EventTarget* aTarget,
michael@0:              int32_t aIdentifier,
michael@0:              int32_t aPageX,
michael@0:              int32_t aPageY,
michael@0:              int32_t aScreenX,
michael@0:              int32_t aScreenY,
michael@0:              int32_t aClientX,
michael@0:              int32_t aClientY,
michael@0:              int32_t aRadiusX,
michael@0:              int32_t aRadiusY,
michael@0:              float aRotationAngle,
michael@0:              float aForce)
michael@0: {
michael@0:   SetIsDOMBinding();
michael@0:   mTarget = aTarget;
michael@0:   mIdentifier = aIdentifier;
michael@0:   mPagePoint = CSSIntPoint(aPageX, aPageY);
michael@0:   mScreenPoint = nsIntPoint(aScreenX, aScreenY);
michael@0:   mClientPoint = CSSIntPoint(aClientX, aClientY);
michael@0:   mRefPoint = nsIntPoint(0, 0);
michael@0:   mPointsInitialized = true;
michael@0:   mRadius.x = aRadiusX;
michael@0:   mRadius.y = aRadiusY;
michael@0:   mRotationAngle = aRotationAngle;
michael@0:   mForce = aForce;
michael@0: 
michael@0:   mChanged = false;
michael@0:   mMessage = 0;
michael@0:   nsJSContext::LikelyShortLivingObjectCreated();
michael@0: }
michael@0: 
michael@0: Touch::Touch(int32_t aIdentifier,
michael@0:              nsIntPoint aPoint,
michael@0:              nsIntPoint aRadius,
michael@0:              float aRotationAngle,
michael@0:              float aForce)
michael@0: {
michael@0:   SetIsDOMBinding();
michael@0:   mIdentifier = aIdentifier;
michael@0:   mPagePoint = CSSIntPoint(0, 0);
michael@0:   mScreenPoint = nsIntPoint(0, 0);
michael@0:   mClientPoint = CSSIntPoint(0, 0);
michael@0:   mRefPoint = aPoint;
michael@0:   mPointsInitialized = false;
michael@0:   mRadius = aRadius;
michael@0:   mRotationAngle = aRotationAngle;
michael@0:   mForce = aForce;
michael@0: 
michael@0:   mChanged = false;
michael@0:   mMessage = 0;
michael@0:   nsJSContext::LikelyShortLivingObjectCreated();
michael@0: }
michael@0: 
michael@0: Touch::~Touch()
michael@0: {
michael@0: }
michael@0: 
michael@0: // static
michael@0: bool
michael@0: Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal)
michael@0: {
michael@0:   return TouchEvent::PrefEnabled(aCx, aGlobal);
michael@0: }
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(Touch, mTarget)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Touch)
michael@0:   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
michael@0:   NS_INTERFACE_MAP_ENTRY(nsISupports)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTING_ADDREF(Touch)
michael@0: NS_IMPL_CYCLE_COLLECTING_RELEASE(Touch)
michael@0: 
michael@0: EventTarget*
michael@0: Touch::Target() const
michael@0: {
michael@0:   nsCOMPtr<nsIContent> content = do_QueryInterface(mTarget);
michael@0:   if (content && content->ChromeOnlyAccess() &&
michael@0:       !nsContentUtils::CanAccessNativeAnon()) {
michael@0:     return content->FindFirstNonChromeOnlyAccessContent();
michael@0:   }
michael@0: 
michael@0:   return mTarget;
michael@0: }
michael@0: 
michael@0: void
michael@0: Touch::InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent)
michael@0: {
michael@0:   if (mPointsInitialized) {
michael@0:     return;
michael@0:   }
michael@0:   mClientPoint = Event::GetClientCoords(
michael@0:     aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
michael@0:     mClientPoint);
michael@0:   mPagePoint = Event::GetPageCoords(
michael@0:     aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
michael@0:     mClientPoint);
michael@0:   mScreenPoint = Event::GetScreenCoords(aPresContext, aEvent,
michael@0:     LayoutDeviceIntPoint::FromUntyped(mRefPoint));
michael@0:   mPointsInitialized = true;
michael@0: }
michael@0: 
michael@0: void
michael@0: Touch::SetTarget(EventTarget* aTarget)
michael@0: {
michael@0:   mTarget = aTarget;
michael@0: }
michael@0: 
michael@0: bool
michael@0: Touch::Equals(Touch* aTouch)
michael@0: {
michael@0:   return mRefPoint == aTouch->mRefPoint &&
michael@0:          mForce == aTouch->Force() &&
michael@0:          mRotationAngle == aTouch->RotationAngle() &&
michael@0:          mRadius.x == aTouch->RadiusX() &&
michael@0:          mRadius.y == aTouch->RadiusY();
michael@0: }
michael@0: 
michael@0: JSObject*
michael@0: Touch::WrapObject(JSContext* aCx)
michael@0: {
michael@0:   return TouchBinding::Wrap(aCx, this);
michael@0: }
michael@0: 
michael@0: // Parent ourselves to the window of the target. This achieves the desirable
michael@0: // effects of parenting to the target, but avoids making the touch inaccessible
michael@0: // when the target happens to be NAC and therefore reflected into the XBL scope.
michael@0: EventTarget*
michael@0: Touch::GetParentObject()
michael@0: {
michael@0:   if (!mTarget) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   nsCOMPtr<nsPIDOMWindow> outer = do_QueryInterface(mTarget->GetOwnerGlobal());
michael@0:   if (!outer) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   MOZ_ASSERT(outer->IsOuterWindow());
michael@0:   return static_cast<nsGlobalWindow*>(outer->GetCurrentInnerWindow());
michael@0: }
michael@0: 
michael@0: } // namespace dom
michael@0: } // namespace mozilla