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Add isIntersecting property to IntersectionObserverEntry.

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Per updated spec.

This resolves the issue raised in #249.
This commit is contained in:
wolfbeast 2019-01-17 19:02:50 +01:00 • committed by Roy Tam
commit 9222116f26
3 changed files with 11 additions and 0 deletions
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1
dom/base/DOMIntersectionObserver.cpp
View file

@ -482,6 +482,7 @@ DOMIntersectionObserver::QueueIntersectionObserverEntry(Element* aTarget,
rootBounds.forget(), rootBounds.forget(),
boundingClientRect.forget(), boundingClientRect.forget(),
intersectionRect.forget(), intersectionRect.forget(),
aIntersectionRect.isSome(),
aTarget, aIntersectionRatio); aTarget, aIntersectionRatio);
mQueuedEntries.AppendElement(entry.forget()); mQueuedEntries.AppendElement(entry.forget());
} }

8
dom/base/DOMIntersectionObserver.h
View file

@ -30,6 +30,7 @@ public:
RefPtr<DOMRect> aRootBounds, RefPtr<DOMRect> aRootBounds,
RefPtr<DOMRect> aBoundingClientRect, RefPtr<DOMRect> aBoundingClientRect,
RefPtr<DOMRect> aIntersectionRect, RefPtr<DOMRect> aIntersectionRect,
bool aIsIntersecting,
Element* aTarget, Element* aTarget,
double aIntersectionRatio) double aIntersectionRatio)
: mOwner(aOwner), : mOwner(aOwner),
@ -37,6 +38,7 @@ public:
mRootBounds(aRootBounds), mRootBounds(aRootBounds),
mBoundingClientRect(aBoundingClientRect), mBoundingClientRect(aBoundingClientRect),
mIntersectionRect(aIntersectionRect), mIntersectionRect(aIntersectionRect),
mIsIntersecting(aIsIntersecting),
mTarget(aTarget), mTarget(aTarget),
mIntersectionRatio(aIntersectionRatio) mIntersectionRatio(aIntersectionRatio)
{ {
@ -74,6 +76,11 @@ public:
return mIntersectionRect; return mIntersectionRect;
} }
bool IsIntersecting()
{
return mIsIntersecting;
}
double IntersectionRatio() double IntersectionRatio()
{ {
return mIntersectionRatio; return mIntersectionRatio;
@ -90,6 +97,7 @@ protected:
RefPtr<DOMRect> mRootBounds; RefPtr<DOMRect> mRootBounds;
RefPtr<DOMRect> mBoundingClientRect; RefPtr<DOMRect> mBoundingClientRect;
RefPtr<DOMRect> mIntersectionRect; RefPtr<DOMRect> mIntersectionRect;
bool mIsIntersecting;
RefPtr<Element> mTarget; RefPtr<Element> mTarget;
double mIntersectionRatio; double mIntersectionRatio;
}; };

2
dom/webidl/IntersectionObserver.webidl
View file

@ -18,6 +18,8 @@ interface IntersectionObserverEntry {
[Constant] [Constant]
readonly attribute DOMRectReadOnly intersectionRect; readonly attribute DOMRectReadOnly intersectionRect;
[Constant] [Constant]
readonly attribute boolean isIntersecting;
[Constant]
readonly attribute double intersectionRatio; readonly attribute double intersectionRatio;
[Constant] [Constant]
readonly attribute Element target; readonly attribute Element target;