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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef DeleteRangeTransaction_h
#define DeleteRangeTransaction_h
#include "EditAggregateTransaction.h"
#include "nsCycleCollectionParticipant.h"
#include "nsID.h"
#include "nsIEditor.h"
#include "nsISupportsImpl.h"
#include "nsRange.h"
#include "nscore.h"
class nsINode;
namespace mozilla {
class EditorBase;
class RangeUpdater;
/**
* A transaction that deletes an entire range in the content tree
*/
class DeleteRangeTransaction final : public EditAggregateTransaction
{
public:
/**
* Initialize the transaction.
* @param aEditorBase The object providing basic editing operations.
* @param aRange The range to delete.
*/
nsresult Init(EditorBase* aEditorBase,
nsRange* aRange,
RangeUpdater* aRangeUpdater);
DeleteRangeTransaction();
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteRangeTransaction,
EditAggregateTransaction)
NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override;
NS_DECL_EDITTRANSACTIONBASE
NS_IMETHOD RedoTransaction() override;
virtual void LastRelease() override
{
mRange = nullptr;
EditAggregateTransaction::LastRelease();
}
protected:
nsresult CreateTxnsToDeleteBetween(nsINode* aNode,
int32_t aStartOffset,
int32_t aEndOffset);
nsresult CreateTxnsToDeleteNodesBetween();
nsresult CreateTxnsToDeleteContent(nsINode* aParent,
int32_t aOffset,
nsIEditor::EDirection aAction);
// P1 in the range.
RefPtr<nsRange> mRange;
// The editor for this transaction.
RefPtr<EditorBase> mEditorBase;
// Range updater object.
RangeUpdater* mRangeUpdater;
};
} // namespace mozilla
#endif // #ifndef DeleteRangeTransaction_h
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