1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/Touch.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,161 @@
1.4 +/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/dom/Touch.h"
1.10 +
1.11 +#include "mozilla/dom/EventTarget.h"
1.12 +#include "mozilla/dom/TouchBinding.h"
1.13 +#include "mozilla/dom/TouchEvent.h"
1.14 +#include "nsGlobalWindow.h"
1.15 +#include "nsContentUtils.h"
1.16 +#include "nsIContent.h"
1.17 +
1.18 +namespace mozilla {
1.19 +namespace dom {
1.20 +
1.21 +Touch::Touch(EventTarget* aTarget,
1.22 + int32_t aIdentifier,
1.23 + int32_t aPageX,
1.24 + int32_t aPageY,
1.25 + int32_t aScreenX,
1.26 + int32_t aScreenY,
1.27 + int32_t aClientX,
1.28 + int32_t aClientY,
1.29 + int32_t aRadiusX,
1.30 + int32_t aRadiusY,
1.31 + float aRotationAngle,
1.32 + float aForce)
1.33 +{
1.34 + SetIsDOMBinding();
1.35 + mTarget = aTarget;
1.36 + mIdentifier = aIdentifier;
1.37 + mPagePoint = CSSIntPoint(aPageX, aPageY);
1.38 + mScreenPoint = nsIntPoint(aScreenX, aScreenY);
1.39 + mClientPoint = CSSIntPoint(aClientX, aClientY);
1.40 + mRefPoint = nsIntPoint(0, 0);
1.41 + mPointsInitialized = true;
1.42 + mRadius.x = aRadiusX;
1.43 + mRadius.y = aRadiusY;
1.44 + mRotationAngle = aRotationAngle;
1.45 + mForce = aForce;
1.46 +
1.47 + mChanged = false;
1.48 + mMessage = 0;
1.49 + nsJSContext::LikelyShortLivingObjectCreated();
1.50 +}
1.51 +
1.52 +Touch::Touch(int32_t aIdentifier,
1.53 + nsIntPoint aPoint,
1.54 + nsIntPoint aRadius,
1.55 + float aRotationAngle,
1.56 + float aForce)
1.57 +{
1.58 + SetIsDOMBinding();
1.59 + mIdentifier = aIdentifier;
1.60 + mPagePoint = CSSIntPoint(0, 0);
1.61 + mScreenPoint = nsIntPoint(0, 0);
1.62 + mClientPoint = CSSIntPoint(0, 0);
1.63 + mRefPoint = aPoint;
1.64 + mPointsInitialized = false;
1.65 + mRadius = aRadius;
1.66 + mRotationAngle = aRotationAngle;
1.67 + mForce = aForce;
1.68 +
1.69 + mChanged = false;
1.70 + mMessage = 0;
1.71 + nsJSContext::LikelyShortLivingObjectCreated();
1.72 +}
1.73 +
1.74 +Touch::~Touch()
1.75 +{
1.76 +}
1.77 +
1.78 +// static
1.79 +bool
1.80 +Touch::PrefEnabled(JSContext* aCx, JSObject* aGlobal)
1.81 +{
1.82 + return TouchEvent::PrefEnabled(aCx, aGlobal);
1.83 +}
1.84 +
1.85 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(Touch, mTarget)
1.86 +
1.87 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Touch)
1.88 + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
1.89 + NS_INTERFACE_MAP_ENTRY(nsISupports)
1.90 +NS_INTERFACE_MAP_END
1.91 +
1.92 +NS_IMPL_CYCLE_COLLECTING_ADDREF(Touch)
1.93 +NS_IMPL_CYCLE_COLLECTING_RELEASE(Touch)
1.94 +
1.95 +EventTarget*
1.96 +Touch::Target() const
1.97 +{
1.98 + nsCOMPtr<nsIContent> content = do_QueryInterface(mTarget);
1.99 + if (content && content->ChromeOnlyAccess() &&
1.100 + !nsContentUtils::CanAccessNativeAnon()) {
1.101 + return content->FindFirstNonChromeOnlyAccessContent();
1.102 + }
1.103 +
1.104 + return mTarget;
1.105 +}
1.106 +
1.107 +void
1.108 +Touch::InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent)
1.109 +{
1.110 + if (mPointsInitialized) {
1.111 + return;
1.112 + }
1.113 + mClientPoint = Event::GetClientCoords(
1.114 + aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
1.115 + mClientPoint);
1.116 + mPagePoint = Event::GetPageCoords(
1.117 + aPresContext, aEvent, LayoutDeviceIntPoint::FromUntyped(mRefPoint),
1.118 + mClientPoint);
1.119 + mScreenPoint = Event::GetScreenCoords(aPresContext, aEvent,
1.120 + LayoutDeviceIntPoint::FromUntyped(mRefPoint));
1.121 + mPointsInitialized = true;
1.122 +}
1.123 +
1.124 +void
1.125 +Touch::SetTarget(EventTarget* aTarget)
1.126 +{
1.127 + mTarget = aTarget;
1.128 +}
1.129 +
1.130 +bool
1.131 +Touch::Equals(Touch* aTouch)
1.132 +{
1.133 + return mRefPoint == aTouch->mRefPoint &&
1.134 + mForce == aTouch->Force() &&
1.135 + mRotationAngle == aTouch->RotationAngle() &&
1.136 + mRadius.x == aTouch->RadiusX() &&
1.137 + mRadius.y == aTouch->RadiusY();
1.138 +}
1.139 +
1.140 +JSObject*
1.141 +Touch::WrapObject(JSContext* aCx)
1.142 +{
1.143 + return TouchBinding::Wrap(aCx, this);
1.144 +}
1.145 +
1.146 +// Parent ourselves to the window of the target. This achieves the desirable
1.147 +// effects of parenting to the target, but avoids making the touch inaccessible
1.148 +// when the target happens to be NAC and therefore reflected into the XBL scope.
1.149 +EventTarget*
1.150 +Touch::GetParentObject()
1.151 +{
1.152 + if (!mTarget) {
1.153 + return nullptr;
1.154 + }
1.155 + nsCOMPtr<nsPIDOMWindow> outer = do_QueryInterface(mTarget->GetOwnerGlobal());
1.156 + if (!outer) {
1.157 + return nullptr;
1.158 + }
1.159 + MOZ_ASSERT(outer->IsOuterWindow());
1.160 + return static_cast<nsGlobalWindow*>(outer->GetCurrentInnerWindow());
1.161 +}
1.162 +
1.163 +} // namespace dom
1.164 +} // namespace mozilla
