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82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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#ifndef DeleteRangeTxn_h__
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#define DeleteRangeTxn_h__
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#include "EditAggregateTxn.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMRange.h"
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#include "nsIEditor.h"
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#include "nsCOMPtr.h"
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class nsIDOMRange;
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class nsIEditor;
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class nsRangeUpdater;
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/**
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* A transaction that deletes an entire range in the content tree
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*/
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class DeleteRangeTxn : public EditAggregateTxn
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{
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public:
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/** initialize the transaction.
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* @param aEditor the object providing basic editing operations
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* @param aRange the range to delete
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*/
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NS_IMETHOD Init(nsIEditor *aEditor,
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nsIDOMRange *aRange,
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nsRangeUpdater *aRangeUpdater);
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DeleteRangeTxn();
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteRangeTxn, EditAggregateTxn)
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
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NS_DECL_EDITTXN
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NS_IMETHOD RedoTransaction();
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protected:
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NS_IMETHOD CreateTxnsToDeleteBetween(nsIDOMNode *aStartParent,
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PRUint32 aStartOffset,
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PRUint32 aEndOffset);
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NS_IMETHOD CreateTxnsToDeleteNodesBetween();
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NS_IMETHOD CreateTxnsToDeleteContent(nsIDOMNode *aParent,
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PRUint32 aOffset,
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nsIEditor::EDirection aAction);
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protected:
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/** p1 in the range */
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nsCOMPtr<nsIDOMRange> mRange; // is this really an owning ptr?
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/** p1 in the range */
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nsCOMPtr<nsIDOMNode> mStartParent;
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/** p1 offset */
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PRInt32 mStartOffset;
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/** p2 in the range */
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nsCOMPtr<nsIDOMNode> mEndParent;
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/** the closest common parent of p1 and p2 */
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nsCOMPtr<nsIDOMNode> mCommonParent;
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/** p2 offset */
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PRInt32 mEndOffset;
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/** the editor for this transaction */
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nsIEditor* mEditor;
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/** range updater object */
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nsRangeUpdater *mRangeUpdater;
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};
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#endif
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