forked from mirrors/gecko-dev
92ef542dba
Ths patch introduces a new class called `CrossShadowBoundaryRange` to make cross shadow boundary range related stuff can be isolated into a single class. It also tweaks a few functions along the call stack, the goal here is to make sure nsContentUtils::IsPointInSelection can detect points in ShadowDOM selection. There's an additional change to `SelectionUtils.sys.mjs` to make sure the correct context menu items are displayed when the current selection crosses the boundary. Differential Revision: https://phabricator.services.mozilla.com/D204080
115 lines
5 KiB
C++
115 lines
5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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/CrossShadowBoundaryRange.h"
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#include "nsContentUtils.h"
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#include "nsINode.h"
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namespace mozilla::dom {
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template already_AddRefed<CrossShadowBoundaryRange>
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CrossShadowBoundaryRange::Create(const RangeBoundary& aStartBoundary,
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const RangeBoundary& aEndBoundary);
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template already_AddRefed<CrossShadowBoundaryRange>
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CrossShadowBoundaryRange::Create(const RangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary);
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template already_AddRefed<CrossShadowBoundaryRange>
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CrossShadowBoundaryRange::Create(const RawRangeBoundary& aStartBoundary,
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const RangeBoundary& aEndBoundary);
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template already_AddRefed<CrossShadowBoundaryRange>
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CrossShadowBoundaryRange::Create(const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary);
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template void CrossShadowBoundaryRange::DoSetRange(
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const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void CrossShadowBoundaryRange::DoSetRange(
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const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void CrossShadowBoundaryRange::DoSetRange(
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const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void CrossShadowBoundaryRange::DoSetRange(
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const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary, nsINode* aRootNode);
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template nsresult CrossShadowBoundaryRange::SetStartAndEnd(
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const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
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template nsresult CrossShadowBoundaryRange::SetStartAndEnd(
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const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary);
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template nsresult CrossShadowBoundaryRange::SetStartAndEnd(
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const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
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template nsresult CrossShadowBoundaryRange::SetStartAndEnd(
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const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary);
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nsTArray<RefPtr<CrossShadowBoundaryRange>>*
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CrossShadowBoundaryRange::sCachedRanges = nullptr;
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NS_IMPL_CYCLE_COLLECTING_ADDREF(CrossShadowBoundaryRange)
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NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_INTERRUPTABLE_LAST_RELEASE(
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CrossShadowBoundaryRange,
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DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr),
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AbstractRange::MaybeCacheToReuse(*this))
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CrossShadowBoundaryRange)
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NS_INTERFACE_MAP_END_INHERITING(CrossShadowBoundaryRange)
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NS_IMPL_CYCLE_COLLECTION_CLASS(CrossShadowBoundaryRange)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CrossShadowBoundaryRange,
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StaticRange)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mCommonAncestor)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CrossShadowBoundaryRange,
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StaticRange)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCommonAncestor)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CrossShadowBoundaryRange,
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StaticRange)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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/* static */
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template <typename SPT, typename SRT, typename EPT, typename ERT>
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already_AddRefed<CrossShadowBoundaryRange> CrossShadowBoundaryRange::Create(
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const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
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const RangeBoundaryBase<EPT, ERT>& aEndBoundary) {
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RefPtr<CrossShadowBoundaryRange> range;
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if (!sCachedRanges || sCachedRanges->IsEmpty()) {
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range = new CrossShadowBoundaryRange(aStartBoundary.Container());
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} else {
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range = sCachedRanges->PopLastElement().forget();
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}
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range->Init(aStartBoundary.Container());
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range->DoSetRange(aStartBoundary, aEndBoundary, nullptr);
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return range.forget();
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}
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template <typename SPT, typename SRT, typename EPT, typename ERT>
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void CrossShadowBoundaryRange::DoSetRange(
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const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
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const RangeBoundaryBase<EPT, ERT>& aEndBoundary, nsINode* aRootNode) {
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// aRootNode is useless to CrossShadowBoundaryRange because aStartBoundary
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// and aEndBoundary could have different roots.
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StaticRange::DoSetRange(aStartBoundary, aEndBoundary, nullptr);
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nsINode* startRoot = RangeUtils::ComputeRootNode(mStart.Container());
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nsINode* endRoot = RangeUtils::ComputeRootNode(mEnd.Container());
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if (startRoot == endRoot) {
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// This should be the case when Release() is called.
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MOZ_ASSERT(!startRoot && !endRoot);
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mCommonAncestor = startRoot;
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} else {
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mCommonAncestor =
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nsContentUtils::GetClosestCommonShadowIncludingInclusiveAncestor(
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mStart.Container(), mEnd.Container());
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}
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}
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} // namespace mozilla::dom
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