mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-07-17 22:50:11 +02:00
136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "ChangeAttributeTxn.h"
|
|
#include "nsIDOMElement.h"
|
|
|
|
ChangeAttributeTxn::ChangeAttributeTxn()
|
|
: EditTxn()
|
|
{
|
|
}
|
|
|
|
ChangeAttributeTxn::~ChangeAttributeTxn()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::Init(nsIEditor *aEditor,
|
|
nsIDOMElement *aElement,
|
|
const nsAString& aAttribute,
|
|
const nsAString& aValue,
|
|
PRBool aRemoveAttribute)
|
|
{
|
|
NS_ASSERTION(aEditor && aElement, "bad arg");
|
|
if (!aEditor || !aElement) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
mEditor = aEditor;
|
|
mElement = do_QueryInterface(aElement);
|
|
mAttribute = aAttribute;
|
|
mValue = aValue;
|
|
mRemoveAttribute = aRemoveAttribute;
|
|
mAttributeWasSet=PR_FALSE;
|
|
mUndoValue.Truncate();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::DoTransaction(void)
|
|
{
|
|
NS_ASSERTION(mEditor && mElement, "bad state");
|
|
if (!mEditor || !mElement) { return NS_ERROR_NOT_INITIALIZED; }
|
|
|
|
// need to get the current value of the attribute and save it, and set mAttributeWasSet
|
|
nsresult result = mEditor->GetAttributeValue(mElement, mAttribute, mUndoValue, &mAttributeWasSet);
|
|
// XXX: hack until attribute-was-set code is implemented
|
|
if (!mUndoValue.IsEmpty())
|
|
mAttributeWasSet = PR_TRUE;
|
|
// XXX: end hack
|
|
|
|
// now set the attribute to the new value
|
|
if (!mRemoveAttribute)
|
|
result = mElement->SetAttribute(mAttribute, mValue);
|
|
else
|
|
result = mElement->RemoveAttribute(mAttribute);
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::UndoTransaction(void)
|
|
{
|
|
NS_ASSERTION(mEditor && mElement, "bad state");
|
|
if (!mEditor || !mElement) { return NS_ERROR_NOT_INITIALIZED; }
|
|
|
|
nsresult result;
|
|
if (mAttributeWasSet)
|
|
result = mElement->SetAttribute(mAttribute, mUndoValue);
|
|
else
|
|
result = mElement->RemoveAttribute(mAttribute);
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::RedoTransaction(void)
|
|
{
|
|
NS_ASSERTION(mEditor && mElement, "bad state");
|
|
if (!mEditor || !mElement) { return NS_ERROR_NOT_INITIALIZED; }
|
|
|
|
nsresult result;
|
|
if (!mRemoveAttribute)
|
|
result = mElement->SetAttribute(mAttribute, mValue);
|
|
else
|
|
result = mElement->RemoveAttribute(mAttribute);
|
|
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::Merge(nsITransaction *aTransaction, PRBool *aDidMerge)
|
|
{
|
|
if (aDidMerge)
|
|
*aDidMerge=PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP ChangeAttributeTxn::GetTxnDescription(nsAString& aString)
|
|
{
|
|
aString.AssignLiteral("ChangeAttributeTxn: [mRemoveAttribute == ");
|
|
|
|
if (!mRemoveAttribute)
|
|
aString.AppendLiteral("false] ");
|
|
else
|
|
aString.AppendLiteral("true] ");
|
|
aString += mAttribute;
|
|
return NS_OK;
|
|
}
|