LCOV - code coverage report
Current view: directory - editor/libeditor/base - EditAggregateTxn.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 74 2 2.7 %
Date: 2012-06-02 Functions: 16 2 12.5 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998-1999
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "EditAggregateTxn.h"
      39                 : #include "nsCOMPtr.h"
      40                 : 
      41               0 : EditAggregateTxn::EditAggregateTxn()
      42               0 :   : EditTxn()
      43                 : {
      44               0 : }
      45            1464 : NS_IMPL_CYCLE_COLLECTION_CLASS(EditAggregateTxn)
      46                 : 
      47               0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(EditAggregateTxn, EditTxn)
      48               0 :   tmp->mChildren.Clear();
      49               0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
      50                 : 
      51               0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(EditAggregateTxn, EditTxn)
      52               0 :   for (PRUint32 i = 0; i < tmp->mChildren.Length(); ++i) {
      53               0 :     NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mChildren[i]");
      54               0 :     cb.NoteXPCOMChild(static_cast<nsITransaction*>(tmp->mChildren[i]));
      55                 :   }
      56               0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
      57                 : 
      58               0 : NS_IMPL_ADDREF_INHERITED(EditAggregateTxn, EditTxn)
      59               0 : NS_IMPL_RELEASE_INHERITED(EditAggregateTxn, EditTxn)
      60               0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EditAggregateTxn)
      61               0 : NS_INTERFACE_MAP_END_INHERITING(EditTxn)
      62                 : 
      63               0 : NS_IMETHODIMP EditAggregateTxn::DoTransaction(void)
      64                 : {
      65               0 :   nsresult result=NS_OK;  // it's legal (but not very useful) to have an empty child list
      66               0 :   for (PRUint32 i = 0, length = mChildren.Length(); i < length; ++i)
      67                 :   {
      68               0 :     nsITransaction *txn = mChildren[i];
      69               0 :     if (!txn) { return NS_ERROR_NULL_POINTER; }
      70               0 :     result = txn->DoTransaction();
      71               0 :     if (NS_FAILED(result))
      72               0 :       break;
      73                 :   }
      74               0 :   return result;
      75                 : }
      76                 : 
      77               0 : NS_IMETHODIMP EditAggregateTxn::UndoTransaction(void)
      78                 : {
      79               0 :   nsresult result=NS_OK;  // it's legal (but not very useful) to have an empty child list
      80                 :   // undo goes through children backwards
      81               0 :   for (PRUint32 i = mChildren.Length(); i-- != 0; )
      82                 :   {
      83               0 :     nsITransaction *txn = mChildren[i];
      84               0 :     if (!txn) { return NS_ERROR_NULL_POINTER; }
      85               0 :     result = txn->UndoTransaction();
      86               0 :     if (NS_FAILED(result))
      87               0 :       break;
      88                 :   }
      89               0 :   return result;
      90                 : }
      91                 : 
      92               0 : NS_IMETHODIMP EditAggregateTxn::RedoTransaction(void)
      93                 : {
      94               0 :   nsresult result=NS_OK;  // it's legal (but not very useful) to have an empty child list
      95               0 :   for (PRUint32 i = 0, length = mChildren.Length(); i < length; ++i)
      96                 :   {
      97               0 :     nsITransaction *txn = mChildren[i];
      98               0 :     if (!txn) { return NS_ERROR_NULL_POINTER; }
      99               0 :     result = txn->RedoTransaction();
     100               0 :     if (NS_FAILED(result))
     101               0 :       break;
     102                 :   }
     103               0 :   return result;
     104                 : }
     105                 : 
     106               0 : NS_IMETHODIMP EditAggregateTxn::Merge(nsITransaction *aTransaction, bool *aDidMerge)
     107                 : {
     108               0 :   nsresult result=NS_OK;  // it's legal (but not very useful) to have an empty child list
     109               0 :   if (aDidMerge)
     110               0 :     *aDidMerge = false;
     111                 :   // FIXME: Is this really intended not to loop?  It looks like the code
     112                 :   // that used to be here sort of intended to loop, but didn't.
     113               0 :   if (mChildren.Length() > 0)
     114                 :   {
     115               0 :     nsITransaction *txn = mChildren[0];
     116               0 :     if (!txn) { return NS_ERROR_NULL_POINTER; }
     117               0 :     result = txn->Merge(aTransaction, aDidMerge);
     118                 :   }
     119               0 :   return result;
     120                 : }
     121                 : 
     122               0 : NS_IMETHODIMP EditAggregateTxn::GetTxnDescription(nsAString& aString)
     123                 : {
     124               0 :   aString.AssignLiteral("EditAggregateTxn: ");
     125                 : 
     126               0 :   if (mName)
     127                 :   {
     128               0 :     nsAutoString name;
     129               0 :     mName->ToString(name);
     130               0 :     aString += name;
     131                 :   }
     132                 : 
     133               0 :   return NS_OK;
     134                 : }
     135                 : 
     136               0 : NS_IMETHODIMP EditAggregateTxn::AppendChild(EditTxn *aTxn)
     137                 : {
     138               0 :   if (!aTxn) {
     139               0 :     return NS_ERROR_NULL_POINTER;
     140                 :   }
     141                 : 
     142               0 :   nsRefPtr<EditTxn> *slot = mChildren.AppendElement();
     143               0 :   if (!slot) {
     144               0 :     return NS_ERROR_OUT_OF_MEMORY;
     145                 :   }
     146                 : 
     147               0 :   *slot = aTxn;
     148               0 :   return NS_OK;
     149                 : }
     150                 : 
     151               0 : NS_IMETHODIMP EditAggregateTxn::GetName(nsIAtom **aName)
     152                 : {
     153               0 :   if (aName && mName)
     154                 :   {
     155               0 :     *aName = mName;
     156               0 :     NS_ADDREF(*aName);
     157               0 :     return NS_OK;
     158                 :   }
     159               0 :   return NS_ERROR_NULL_POINTER;
     160            4392 : }

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