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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
#ifndef mozilla_dom_CrossShadowBoundaryRange_h
#define mozilla_dom_CrossShadowBoundaryRange_h
#include "mozilla/RangeBoundary.h"
#include "mozilla/RangeUtils.h"
#include "mozilla/dom/AbstractRange.h"
#include "mozilla/dom/StaticRange.h"
#include "nsTArray.h"
namespace mozilla {
class ErrorResult;
namespace dom {
class CrossShadowBoundaryRange final : public StaticRange,
public nsStubMutationObserver {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHODIMP_(void) DeleteCycleCollectable(void) override;
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
CrossShadowBoundaryRange, StaticRange)
CrossShadowBoundaryRange() = delete;
explicit CrossShadowBoundaryRange(const StaticRange& aOther) = delete;
template <typename SPT, typename SRT, typename EPT, typename ERT>
static already_AddRefed<CrossShadowBoundaryRange> Create(
const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary, nsRange* aOwner);
void NotifyNodeBecomesShadowHost(nsINode* aNode) {
if (aNode == mStart.Container()) {
mStart.NotifyParentBecomesShadowHost();
}
if (aNode == mEnd.Container()) {
mEnd.NotifyParentBecomesShadowHost();
}
}
nsINode* GetCommonAncestor() const { return mCommonAncestor; }
// CrossShadowBoundaryRange should have a very limited usage.
nsresult SetStartAndEnd(nsINode* aStartContainer, uint32_t aStartOffset,
nsINode* aEndContainer, uint32_t aEndOffset) = delete;
template <typename SPT, typename SRT, typename EPT, typename ERT>
nsresult SetStartAndEnd(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary) {
return StaticRange::SetStartAndEnd(aStartBoundary, aEndBoundary);
}
NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
NS_DECL_NSIMUTATIONOBSERVER_PARENTCHAINCHANGED
private:
explicit CrossShadowBoundaryRange(nsINode* aNode, nsRange* aOwner)
: StaticRange(aNode, RangeBoundaryIsMutationObserved::Yes),
mOwner(aOwner) {}
virtual ~CrossShadowBoundaryRange() = default;
/**
* DoSetRange() is called when `AbstractRange::SetStartAndEndInternal()` sets
* mStart and mEnd.
*
* @param aStartBoundary Computed start point. This must equals or be before
* aEndBoundary in the DOM tree order.
* @param aEndBoundary Computed end point.
* @param aRootNode The root node of aStartBoundary or aEndBoundary.
* It's useless to CrossShadowBoundaryRange.
* @param aOwner The nsRange that owns this CrossShadowBoundaryRange.
*/
template <typename SPT, typename SRT, typename EPT, typename ERT>
void DoSetRange(const RangeBoundaryBase<SPT, SRT>& aStartBoundary,
const RangeBoundaryBase<EPT, ERT>& aEndBoundary,
nsINode* aRootNode, nsRange* aOwner);
// This is either NULL if this CrossShadowBoundaryRange has been
// reset by Release() or the closest common shadow-including ancestor
// of mStart and mEnd.
nsCOMPtr<nsINode> mCommonAncestor;
static nsTArray<RefPtr<CrossShadowBoundaryRange>>* sCachedRanges;
friend class AbstractRange;
// nsRange owns CrossShadowBoundaryRange; it always outlives
// CrossShadowBoundaryRange, so it's safe to use raw pointer here.
nsRange* mOwner;
};
} // namespace dom
} // namespace mozilla
#endif // #ifndef mozilla_dom_CrossShadowBoundaryRange_h