157 lines
6.3 KiB
C++
157 lines
6.3 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/StaticRange.h"
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#include "mozilla/dom/StaticRangeBinding.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<StaticRange> StaticRange::Create(
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const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
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ErrorResult& aRv);
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template already_AddRefed<StaticRange> StaticRange::Create(
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const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary,
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ErrorResult& aRv);
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template already_AddRefed<StaticRange> StaticRange::Create(
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const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
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ErrorResult& aRv);
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template already_AddRefed<StaticRange> StaticRange::Create(
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const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary, ErrorResult& aRv);
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template nsresult StaticRange::SetStartAndEnd(
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const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
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template nsresult StaticRange::SetStartAndEnd(
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const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary);
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template nsresult StaticRange::SetStartAndEnd(
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const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
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template nsresult StaticRange::SetStartAndEnd(
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const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary);
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template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
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const RangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
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const RangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
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const RawRangeBoundary& aEndBoundary,
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nsINode* aRootNode);
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nsTArray<RefPtr<StaticRange>>* StaticRange::sCachedRanges = nullptr;
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NS_IMPL_CYCLE_COLLECTING_ADDREF(StaticRange)
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NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_INTERRUPTABLE_LAST_RELEASE(
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StaticRange, DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr),
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AbstractRange::MaybeCacheToReuse(*this))
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StaticRange)
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NS_INTERFACE_MAP_END_INHERITING(AbstractRange)
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NS_IMPL_CYCLE_COLLECTION_CLASS(StaticRange)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(StaticRange, AbstractRange)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mStart)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mEnd)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(StaticRange, AbstractRange)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(StaticRange, AbstractRange)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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// static
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already_AddRefed<StaticRange> StaticRange::Create(nsINode* aNode) {
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MOZ_ASSERT(aNode);
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if (!sCachedRanges || sCachedRanges->IsEmpty()) {
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return do_AddRef(
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new StaticRange(aNode, RangeBoundaryIsMutationObserved::No));
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}
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RefPtr<StaticRange> staticRange = sCachedRanges->PopLastElement().forget();
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staticRange->Init(aNode);
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return staticRange.forget();
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}
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// static
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template <typename SPT, typename SRT, typename EPT, typename ERT>
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already_AddRefed<StaticRange> StaticRange::Create(
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const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
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const RangeBoundaryBase<EPT, ERT>& aEndBoundary, ErrorResult& aRv) {
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RefPtr<StaticRange> staticRange =
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StaticRange::Create(aStartBoundary.GetContainer());
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staticRange->DoSetRange(aStartBoundary, aEndBoundary, nullptr);
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return staticRange.forget();
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}
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StaticRange::~StaticRange() {
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DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr);
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}
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bool StaticRange::IsValid() const {
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if (!mStart.IsSetAndValid() || !mEnd.IsSetAndValid()) {
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return false;
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}
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MOZ_ASSERT(mAreStartAndEndInSameTree ==
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(RangeUtils::ComputeRootNode(mStart.GetContainer()) ==
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RangeUtils::ComputeRootNode(mEnd.GetContainer())));
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if (!mAreStartAndEndInSameTree) {
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return false;
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}
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const Maybe<int32_t> pointOrder = nsContentUtils::ComparePoints(mStart, mEnd);
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return pointOrder.isSome() && *pointOrder <= 0;
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}
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template <typename SPT, typename SRT, typename EPT, typename ERT>
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void StaticRange::DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
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const RangeBoundaryBase<EPT, ERT>& aEndBoundary,
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nsINode* aRootNode) {
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bool checkCommonAncestor =
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IsInAnySelection() &&
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(mStart.GetContainer() != aStartBoundary.GetContainer() ||
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mEnd.GetContainer() != aEndBoundary.GetContainer());
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mStart.CopyFrom(aStartBoundary, mIsMutationObserved);
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mEnd.CopyFrom(aEndBoundary, mIsMutationObserved);
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MOZ_ASSERT(mStart.IsSet() == mEnd.IsSet());
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mIsPositioned = mStart.IsSet() && mEnd.IsSet();
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if (checkCommonAncestor) {
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UpdateCommonAncestorIfNecessary();
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}
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mAreStartAndEndInSameTree =
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RangeUtils::ComputeRootNode(mStart.GetContainer()) ==
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RangeUtils::ComputeRootNode(mEnd.GetContainer());
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}
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/* static */
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already_AddRefed<StaticRange> StaticRange::Constructor(
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const GlobalObject& global, const StaticRangeInit& init, ErrorResult& aRv) {
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if (init.mStartContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
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init.mStartContainer->NodeType() == nsINode::ATTRIBUTE_NODE ||
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init.mEndContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
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init.mEndContainer->NodeType() == nsINode::ATTRIBUTE_NODE) {
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aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
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return nullptr;
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}
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return Create(init.mStartContainer, init.mStartOffset, init.mEndContainer,
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init.mEndOffset, aRv);
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}
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JSObject* StaticRange::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return StaticRange_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla::dom
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