mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 08:35:26 +00:00
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/* -*- 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 DeleteTextTxn_h__
|
|
#define DeleteTextTxn_h__
|
|
|
|
#include "EditTxn.h"
|
|
#include "nsIDOMCharacterData.h"
|
|
#include "nsCOMPtr.h"
|
|
|
|
class nsEditor;
|
|
class nsRangeUpdater;
|
|
|
|
/**
|
|
* A transaction that removes text from a content node.
|
|
*/
|
|
class DeleteTextTxn : public EditTxn
|
|
{
|
|
public:
|
|
/** initialize the transaction.
|
|
* @param aEditor the provider of basic editing operations
|
|
* @param aElement the content node to remove text from
|
|
* @param aOffset the location in aElement to begin the deletion
|
|
* @param aNumCharsToDelete the number of characters to delete. Not the number of bytes!
|
|
*/
|
|
NS_IMETHOD Init(nsEditor* aEditor,
|
|
nsIDOMCharacterData* aCharData,
|
|
PRUint32 aOffset,
|
|
PRUint32 aNumCharsToDelete,
|
|
nsRangeUpdater* aRangeUpdater);
|
|
|
|
DeleteTextTxn();
|
|
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteTextTxn, EditTxn)
|
|
NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
|
|
|
|
NS_DECL_EDITTXN
|
|
|
|
PRUint32 GetOffset() { return mOffset; }
|
|
|
|
PRUint32 GetNumCharsToDelete() { return mNumCharsToDelete; }
|
|
|
|
protected:
|
|
|
|
/** the provider of basic editing operations */
|
|
nsEditor* mEditor;
|
|
|
|
/** the CharacterData node to operate upon */
|
|
nsCOMPtr<nsIDOMCharacterData> mCharData;
|
|
|
|
/** the offset into mCharData where the deletion is to take place */
|
|
PRUint32 mOffset;
|
|
|
|
/** the number of characters to delete */
|
|
PRUint32 mNumCharsToDelete;
|
|
|
|
/** the text that was deleted */
|
|
nsString mDeletedText;
|
|
|
|
/** range updater object */
|
|
nsRangeUpdater* mRangeUpdater;
|
|
};
|
|
|
|
#endif
|