From da4c7e7ed675c3bf405668739c3012d140856109 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 15 May 2024 05:34:42 +0200 Subject: Adding upstream version 126.0. Signed-off-by: Daniel Baumann --- dom/base/nsRange.h | 149 +++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 138 insertions(+), 11 deletions(-) (limited to 'dom/base/nsRange.h') diff --git a/dom/base/nsRange.h b/dom/base/nsRange.h index 97756d3afc..94459087cb 100644 --- a/dom/base/nsRange.h +++ b/dom/base/nsRange.h @@ -13,6 +13,7 @@ #include "nsCOMPtr.h" #include "mozilla/dom/AbstractRange.h" +#include "mozilla/dom/StaticRange.h" #include "prmon.h" #include "nsStubMutationObserver.h" #include "nsWrapperCache.h" @@ -31,6 +32,13 @@ class DOMRect; class DOMRectList; class InspectorFontFace; class Selection; + +enum class CollapsePolicy : uint8_t { + No, // Don't need to collapse + DefaultRange, // Collapse the default range + DefaultRangeAndCrossShadowBoundaryRanges // Collapse both the default range + // and the cross boundary range +}; } // namespace dom } // namespace mozilla @@ -43,6 +51,8 @@ class nsRange final : public mozilla::dom::AbstractRange, using DOMRectList = mozilla::dom::DOMRectList; using RangeBoundary = mozilla::RangeBoundary; using RawRangeBoundary = mozilla::RawRangeBoundary; + using AllowRangeCrossShadowBoundary = + mozilla::dom::AllowRangeCrossShadowBoundary; virtual ~nsRange(); explicit nsRange(nsINode* aNode); @@ -111,14 +121,20 @@ class nsRange final : public mozilla::dom::AbstractRange, * When you set both start and end of a range, you should use * SetStartAndEnd() instead. */ - nsresult SetStart(nsINode* aContainer, uint32_t aOffset) { + nsresult SetStart(nsINode* aContainer, uint32_t aOffset, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No) { ErrorResult error; - SetStart(RawRangeBoundary(aContainer, aOffset), error); + SetStart(RawRangeBoundary(aContainer, aOffset), error, + aAllowCrossShadowBoundary); return error.StealNSResult(); } - nsresult SetEnd(nsINode* aContainer, uint32_t aOffset) { + nsresult SetEnd(nsINode* aContainer, uint32_t aOffset, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No) { ErrorResult error; - SetEnd(RawRangeBoundary(aContainer, aOffset), error); + SetEnd(RawRangeBoundary(aContainer, aOffset), error, + aAllowCrossShadowBoundary); return error.StealNSResult(); } @@ -224,6 +240,11 @@ class nsRange final : public mozilla::dom::AbstractRange, void SetStartAfterJS(nsINode& aNode, ErrorResult& aErr); void SetStartBeforeJS(nsINode& aNode, ErrorResult& aErr); + void SetStartAllowCrossShadowBoundary(nsINode& aNode, uint32_t aOffset, + ErrorResult& aErr); + void SetEndAllowCrossShadowBoundary(nsINode& aNode, uint32_t aOffset, + ErrorResult& aErr); + void SurroundContents(nsINode& aNode, ErrorResult& aErr); already_AddRefed GetBoundingClientRect(bool aClampToEdge = true, bool aFlushLayout = true); @@ -235,14 +256,26 @@ class nsRange final : public mozilla::dom::AbstractRange, // Following methods should be used for internal use instead of *JS(). void SelectNode(nsINode& aNode, ErrorResult& aErr); void SelectNodeContents(nsINode& aNode, ErrorResult& aErr); - void SetEnd(nsINode& aNode, uint32_t aOffset, ErrorResult& aErr); - void SetEnd(const RawRangeBoundary& aPoint, ErrorResult& aErr); + void SetEnd(nsINode& aNode, uint32_t aOffset, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); + void SetEnd(const RawRangeBoundary& aPoint, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); void SetEndAfter(nsINode& aNode, ErrorResult& aErr); - void SetEndBefore(nsINode& aNode, ErrorResult& aErr); - void SetStart(nsINode& aNode, uint32_t aOffset, ErrorResult& aErr); - void SetStart(const RawRangeBoundary& aPoint, ErrorResult& aErr); + void SetEndBefore(nsINode& aNode, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); + void SetStart(nsINode& aNode, uint32_t aOffset, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); + void SetStart(const RawRangeBoundary& aPoint, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); void SetStartAfter(nsINode& aNode, ErrorResult& aErr); - void SetStartBefore(nsINode& aNode, ErrorResult& aErr); + void SetStartBefore(nsINode& aNode, ErrorResult& aErr, + AllowRangeCrossShadowBoundary aAllowCrossShadowBoundary = + AllowRangeCrossShadowBoundary::No); void Collapse(bool aToStart); static void GetInnerTextNoFlush(mozilla::dom::DOMString& aValue, @@ -351,6 +384,82 @@ class nsRange final : public mozilla::dom::AbstractRange, */ nsINode* GetRegisteredClosestCommonInclusiveAncestor(); + template + void CreateOrUpdateCrossShadowBoundaryRangeIfNeeded( + const mozilla::RangeBoundaryBase& aStartBoundary, + const mozilla::RangeBoundaryBase& aEndBoundary); + + void ResetCrossShadowBoundaryRange() { mCrossShadowBoundaryRange = nullptr; } + +#ifdef DEBUG + bool CrossShadowBoundaryRangeCollapsed() const { + MOZ_ASSERT(mCrossShadowBoundaryRange); + + return !mCrossShadowBoundaryRange->IsPositioned() || + (mCrossShadowBoundaryRange->GetStartContainer() == + mCrossShadowBoundaryRange->GetEndContainer() && + mCrossShadowBoundaryRange->StartOffset() == + mCrossShadowBoundaryRange->EndOffset()); + } +#endif + + /* + * The methods marked with MayCrossShadowBoundary[..] additionally check for + * the existence of mCrossShadowBoundaryRange, which indicates a range that + * crosses a shadow DOM boundary (i.e. mStart and mEnd are in different + * trees). If the caller can guarantee that this does not happen, there are + * additional variants of these methods named without MayCrossShadowBoundary, + * which provide a slightly faster implementation. + * */ + + nsIContent* GetMayCrossShadowBoundaryChildAtStartOffset() const { + return mCrossShadowBoundaryRange + ? mCrossShadowBoundaryRange->GetChildAtStartOffset() + : mStart.GetChildAtOffset(); + } + + nsIContent* GetMayCrossShadowBoundaryChildAtEndOffset() const { + return mCrossShadowBoundaryRange + ? mCrossShadowBoundaryRange->GetChildAtEndOffset() + : mEnd.GetChildAtOffset(); + } + + mozilla::dom::StaticRange* GetCrossShadowBoundaryRange() const { + return mCrossShadowBoundaryRange; + } + + nsINode* GetMayCrossShadowBoundaryStartContainer() const { + return mCrossShadowBoundaryRange + ? mCrossShadowBoundaryRange->GetStartContainer() + : mStart.Container(); + } + + nsINode* GetMayCrossShadowBoundaryEndContainer() const { + return mCrossShadowBoundaryRange + ? mCrossShadowBoundaryRange->GetEndContainer() + : mEnd.Container(); + } + + uint32_t MayCrossShadowBoundaryStartOffset() const { + return mCrossShadowBoundaryRange ? mCrossShadowBoundaryRange->StartOffset() + : StartOffset(); + } + + uint32_t MayCrossShadowBoundaryEndOffset() const { + return mCrossShadowBoundaryRange ? mCrossShadowBoundaryRange->EndOffset() + : EndOffset(); + } + + const RangeBoundary& MayCrossShadowBoundaryStartRef() const { + return mCrossShadowBoundaryRange ? mCrossShadowBoundaryRange->StartRef() + : StartRef(); + } + + const RangeBoundary& MayCrossShadowBoundaryEndRef() const { + return mCrossShadowBoundaryRange ? mCrossShadowBoundaryRange->EndRef() + : EndRef(); + } + protected: /** * DoSetRange() is called when `AbstractRange::SetStartAndEndInternal()` sets @@ -372,7 +481,9 @@ class nsRange final : public mozilla::dom::AbstractRange, MOZ_CAN_RUN_SCRIPT_BOUNDARY void DoSetRange( const mozilla::RangeBoundaryBase& aStartBoundary, const mozilla::RangeBoundaryBase& aEndBoundary, - nsINode* aRootNode, bool aNotInsertedYet = false); + nsINode* aRootNode, bool aNotInsertedYet = false, + mozilla::dom::CollapsePolicy aCollapsePolicy = mozilla::dom:: + CollapsePolicy::DefaultRangeAndCrossShadowBoundaryRanges); // Assume that this is guaranteed that this is held by the caller when // this is used. (Note that we cannot use AutoRestore for mCalledByJS @@ -424,6 +535,22 @@ class nsRange final : public mozilla::dom::AbstractRange, static nsTArray>* sCachedRanges; + // Used to keep track of the real start and end for a + // selection where the start and the end are in different trees. + // It's NULL when the nodes are in the same tree. + // + // mCrossShadowBoundaryRange doesn't deal with DOM mutations, because + // it's still an open question about how it should be handled. + // Spec: https://github.com/w3c/selection-api/issues/168. + // As a result, it'll be set to NULL if that happens. + // + // Theoretically, mCrossShadowBoundaryRange isn't really needed because + // we should be able to always store the real start and end, and + // just return one point when a collapse is needed. + // Bug https://bugzilla.mozilla.org/show_bug.cgi?id=1886028 is going + // to be used to improve mCrossShadowBoundaryRange. + RefPtr mCrossShadowBoundaryRange; + friend class mozilla::dom::AbstractRange; }; namespace mozilla::dom { -- cgit v1.2.3