f62022c72f
updated to new nsCOMPtr usage nsTextEditor::InsertBreak() implemented splits the text node at the caret (deletes any extended selection to force a collapsed selection.) inserts a <BR> which I assume we'll convert to a CR when we write to a text stream. undo and redo work, except for the bug noted below More stuff: interface cleanup strategic debugging code added delete selection txn sets the collapses the selection...this is just a placeholder, but I needed it for undo/redo of InsertBreak. join and split now work for text nodes as well as interior nodes git-svn-id: svn://10.0.0.236/trunk@21009 18797224-902f-48f8-a5cc-f745e15eee43
134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "CreateElementTxn.h"
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#include "nsIDOMNodeList.h"
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CreateElementTxn::CreateElementTxn()
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: EditTxn()
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{
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}
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nsresult CreateElementTxn::Init(nsIDOMDocument *aDoc,
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const nsString& aTag,
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nsIDOMNode *aParent,
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PRUint32 aOffsetInParent)
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{
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if ((nsnull!=aDoc) && (nsnull!=aParent))
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{
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mDoc = aDoc;
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mTag = aTag;
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mParent = aParent;
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mOffsetInParent = aOffsetInParent;
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mNewNode = nsnull;
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mRefNode = nsnull;
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#ifdef NS_DEBUG
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{
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nsCOMPtr<nsIDOMNodeList> testChildNodes;
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nsresult testResult = mParent->GetChildNodes(getter_AddRefs(testChildNodes));
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NS_ASSERTION(testChildNodes, "bad parent type, can't have children.");
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}
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#endif
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return NS_OK;
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}
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else
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return NS_ERROR_NULL_POINTER;
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}
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CreateElementTxn::~CreateElementTxn()
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{
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}
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nsresult CreateElementTxn::Do(void)
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{
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// create a new node
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nsresult result = mDoc->CreateElement(mTag, getter_AddRefs(mNewNode));
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NS_ASSERTION(((NS_SUCCEEDED(result)) && (mNewNode)), "could not create element.");
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if ((NS_SUCCEEDED(result)) && (mNewNode))
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{
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// insert the new node
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nsCOMPtr<nsIDOMNode> resultNode;
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if (CreateElementTxn::eAppend==mOffsetInParent)
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{
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result = mParent->AppendChild(mNewNode, getter_AddRefs(resultNode));
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}
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else
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{
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nsCOMPtr<nsIDOMNodeList> childNodes;
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result = mParent->GetChildNodes(getter_AddRefs(childNodes));
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if ((NS_SUCCEEDED(result)) && (childNodes))
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{
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result = childNodes->Item(mOffsetInParent, getter_AddRefs(mRefNode));
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if ((NS_SUCCEEDED(result)) && (mRefNode))
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{
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result = mParent->InsertBefore(mNewNode, mRefNode, getter_AddRefs(resultNode));
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}
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}
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}
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}
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return result;
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}
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nsresult CreateElementTxn::Undo(void)
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{
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nsCOMPtr<nsIDOMNode> resultNode;
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nsresult result = mParent->RemoveChild(mNewNode, getter_AddRefs(resultNode));
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return result;
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}
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nsresult CreateElementTxn::Redo(void)
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{
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nsCOMPtr<nsIDOMNode> resultNode;
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nsresult result = mParent->InsertBefore(mNewNode, mRefNode, getter_AddRefs(resultNode));
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return result;
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}
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nsresult CreateElementTxn::Merge(PRBool *aDidMerge, nsITransaction *aTransaction)
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{
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if (nsnull!=aDidMerge)
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*aDidMerge=PR_FALSE;
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return NS_OK;
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}
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nsresult CreateElementTxn::Write(nsIOutputStream *aOutputStream)
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{
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return NS_OK;
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}
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nsresult CreateElementTxn::GetUndoString(nsString **aString)
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{
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if (nsnull!=aString)
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{
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**aString="Remove Element: ";
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**aString += mTag;
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}
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return NS_OK;
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}
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nsresult CreateElementTxn::GetRedoString(nsString **aString)
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{
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if (nsnull!=aString)
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{
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**aString="Create Element: ";
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**aString += mTag;
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}
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return NS_OK;
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}
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