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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/StaticRange.h"
#include "mozilla/dom/StaticRangeBinding.h"
#include "nsContentUtils.h"
#include "nsINode.h"
namespace mozilla::dom {
template already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary,
ErrorResult& aRv);
template already_AddRefed<StaticRange> StaticRange::Create(
const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary, ErrorResult& aRv);
template nsresult StaticRange::SetStartAndEnd(
const RangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RangeBoundary& aStartBoundary, const RawRangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RawRangeBoundary& aStartBoundary, const RangeBoundary& aEndBoundary);
template nsresult StaticRange::SetStartAndEnd(
const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary);
template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
const RangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
const RangeBoundary& aEndBoundary,
nsINode* aRootNode);
template void StaticRange::DoSetRange(const RawRangeBoundary& aStartBoundary,
const RawRangeBoundary& aEndBoundary,
nsINode* aRootNode);
nsTArray<RefPtr<StaticRange>>* StaticRange::sCachedRanges = nullptr;
NS_IMPL_CYCLE_COLLECTING_ADDREF(StaticRange)
NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_INTERRUPTABLE_LAST_RELEASE(
StaticRange, DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr),
AbstractRange::MaybeCacheToReuse(*this))
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(StaticRange)
NS_INTERFACE_MAP_END_INHERITING(AbstractRange)
NS_IMPL_CYCLE_COLLECTION_CLASS(StaticRange)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mStart)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mEnd)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(StaticRange, AbstractRange)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
// static
already_AddRefed<StaticRange> StaticRange::Create(nsINode* aNode) {
MOZ_ASSERT(aNode);
if (!sCachedRanges || sCachedRanges->IsEmpty()) {
return do_AddRef(new StaticRange(aNode));
}
RefPtr<StaticRange> staticRange = sCachedRanges->PopLastElement().forget();
staticRange->Init(aNode);
return staticRange.forget();
}
// static
template <typename SPT, typename SRT, typename EPT, typename ERT>
already_AddRefed<StaticRange> StaticRange::Create(
const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary, ErrorResult& aRv) {
RefPtr<StaticRange> staticRange =
StaticRange::Create(aStartBoundary.Container());
staticRange->DoSetRange(aStartBoundary, aEndBoundary, nullptr);
return staticRange.forget();
}
StaticRange::~StaticRange() {
DoSetRange(RawRangeBoundary(), RawRangeBoundary(), nullptr);
}
bool StaticRange::IsValid() const {
if (!mStart.IsSetAndValid() || !mEnd.IsSetAndValid()) {
return false;
}
MOZ_ASSERT(mAreStartAndEndInSameTree ==
(RangeUtils::ComputeRootNode(mStart.Container()) ==
RangeUtils::ComputeRootNode(mEnd.Container())));
if (!mAreStartAndEndInSameTree) {
return false;
}
const Maybe<int32_t> pointOrder = nsContentUtils::ComparePoints(mStart, mEnd);
return pointOrder.isSome() && *pointOrder <= 0;
}
template <typename SPT, typename SRT, typename EPT, typename ERT>
void StaticRange::DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary,
nsINode* aRootNode) {
bool checkCommonAncestor =
IsInAnySelection() && (mStart.Container() != aStartBoundary.Container() ||
mEnd.Container() != aEndBoundary.Container());
mStart.CopyFrom(aStartBoundary, RangeBoundaryIsMutationObserved::No);
mEnd.CopyFrom(aEndBoundary, RangeBoundaryIsMutationObserved::No);
MOZ_ASSERT(mStart.IsSet() == mEnd.IsSet());
mIsPositioned = mStart.IsSet() && mEnd.IsSet();
if (checkCommonAncestor) {
UpdateCommonAncestorIfNecessary();
}
mAreStartAndEndInSameTree = RangeUtils::ComputeRootNode(mStart.Container()) ==
RangeUtils::ComputeRootNode(mEnd.Container());
}
/* static */
already_AddRefed<StaticRange> StaticRange::Constructor(
const GlobalObject& global, const StaticRangeInit& init, ErrorResult& aRv) {
if (init.mStartContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
init.mStartContainer->NodeType() == nsINode::ATTRIBUTE_NODE ||
init.mEndContainer->NodeType() == nsINode::DOCUMENT_TYPE_NODE ||
init.mEndContainer->NodeType() == nsINode::ATTRIBUTE_NODE) {
aRv.Throw(NS_ERROR_DOM_INVALID_NODE_TYPE_ERR);
return nullptr;
}
return Create(init.mStartContainer, init.mStartOffset, init.mEndContainer,
init.mEndOffset, aRv);
}
JSObject* StaticRange::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return StaticRange_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace mozilla::dom
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