/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public License * Version 1.0 (the "NPL"); you may not use this file except in * compliance with the NPL. You may obtain a copy of the NPL at * http://www.mozilla.org/NPL/ * * Software distributed under the NPL is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL * for the specific language governing rights and limitations under the * NPL. * * The Initial Developer of this code under the NPL is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All Rights * Reserved. */ #include "SplitElementTxn.h" #include "editor.h" #include "nsIDOMNode.h" #include "nsIDOMElement.h" // note that aEditor is not refcounted SplitElementTxn::SplitElementTxn(nsEditor *aEditor, nsIDOMNode *aNode, PRInt32 aOffset) : EditTxn(aEditor) { mNode = aNode; NS_ADDREF(mNode); mOffset = aOffset; mNewNode = nsnull; mParent = nsnull; } SplitElementTxn::~SplitElementTxn() { NS_IF_RELEASE(mNode); NS_IF_RELEASE(mNewNode); NS_IF_RELEASE(mParent); } nsresult SplitElementTxn::Do(void) { // create a new node nsresult result = mNode->CloneNode(PR_FALSE, &mNewNode); NS_ASSERTION(((NS_SUCCEEDED(result)) && (nsnull!=mNewNode)), "could not create element."); if ((NS_SUCCEEDED(result)) && (nsnull!=mNewNode)) { // get the parent node result = mNode->GetParentNode(&mParent); // insert the new node if ((NS_SUCCEEDED(result)) && (nsnull!=mParent)) { result = mEditor->SplitNode(mNode, mOffset, mNewNode, mParent); } } return result; } nsresult SplitElementTxn::Undo(void) { // this assumes Do inserted the new node in front of the prior existing node nsresult result = mEditor->JoinNodes(mNode, mNewNode, mParent, PR_FALSE); return result; } nsresult SplitElementTxn::Redo(void) { nsresult result = mEditor->SplitNode(mNode, mOffset, mNewNode, mParent); return result; } nsresult SplitElementTxn::GetIsTransient(PRBool *aIsTransient) { if (nsnull!=aIsTransient) *aIsTransient = PR_FALSE; return NS_OK; } nsresult SplitElementTxn::Merge(PRBool *aDidMerge, nsITransaction *aTransaction) { return NS_OK; } nsresult SplitElementTxn::Write(nsIOutputStream *aOutputStream) { return NS_OK; } nsresult SplitElementTxn::GetUndoString(nsString **aString) { if (nsnull!=aString) { **aString="Join Element"; } return NS_OK; } nsresult SplitElementTxn::GetRedoString(nsString **aString) { if (nsnull!=aString) { **aString="Split Element"; } return NS_OK; }