LCOV - code coverage report
Current view: directory - layout/xul/base/src - nsRepeatService.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 37 3 8.1 %
Date: 2012-06-02 Functions: 11 1 9.1 %

       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 Communicator client 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
      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                 : //
      39                 : // Eric Vaughan
      40                 : // Netscape Communications
      41                 : //
      42                 : // See documentation in associated header file
      43                 : //
      44                 : 
      45                 : #include "nsRepeatService.h"
      46                 : #include "nsIServiceManager.h"
      47                 : 
      48                 : nsRepeatService* nsRepeatService::gInstance = nsnull;
      49                 : 
      50               0 : nsRepeatService::nsRepeatService()
      51               0 : : mCallback(nsnull), mCallbackData(nsnull)
      52                 : {
      53               0 : }
      54                 : 
      55               0 : nsRepeatService::~nsRepeatService()
      56                 : {
      57               0 :   NS_ASSERTION(!mCallback && !mCallbackData, "Callback was not removed before shutdown");
      58               0 : }
      59                 : 
      60                 : nsRepeatService* 
      61               0 : nsRepeatService::GetInstance()
      62                 : {
      63               0 :   if (!gInstance) {
      64               0 :     gInstance = new nsRepeatService();
      65               0 :     NS_IF_ADDREF(gInstance);
      66                 :   }
      67               0 :   return gInstance;
      68                 : }
      69                 : 
      70                 : /*static*/ void
      71            1403 : nsRepeatService::Shutdown()
      72                 : {
      73            1403 :   NS_IF_RELEASE(gInstance);
      74            1403 : }
      75                 : 
      76               0 : void nsRepeatService::Start(Callback aCallback, void* aCallbackData,
      77                 :                             PRUint32 aInitialDelay)
      78                 : {
      79               0 :   NS_PRECONDITION(aCallback != nsnull, "null ptr");
      80                 : 
      81               0 :   mCallback = aCallback;
      82               0 :   mCallbackData = aCallbackData;
      83                 :   nsresult rv;
      84               0 :   mRepeatTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
      85                 : 
      86               0 :   if (NS_SUCCEEDED(rv))  {
      87               0 :     mRepeatTimer->InitWithCallback(this, aInitialDelay, nsITimer::TYPE_ONE_SHOT);
      88                 :   }
      89               0 : }
      90                 : 
      91               0 : void nsRepeatService::Stop(Callback aCallback, void* aCallbackData)
      92                 : {
      93               0 :   if (mCallback != aCallback || mCallbackData != aCallbackData)
      94               0 :     return;
      95                 : 
      96                 :   //printf("Stopping repeat timer\n");
      97               0 :   if (mRepeatTimer) {
      98               0 :      mRepeatTimer->Cancel();
      99               0 :      mRepeatTimer = nsnull;
     100                 :   }
     101               0 :   mCallback = nsnull;
     102               0 :   mCallbackData = nsnull;
     103                 : }
     104                 : 
     105               0 : NS_IMETHODIMP nsRepeatService::Notify(nsITimer *timer)
     106                 : {
     107                 :   // do callback
     108               0 :   if (mCallback)
     109               0 :     mCallback(mCallbackData);
     110                 : 
     111                 :   // start timer again.
     112               0 :   if (mRepeatTimer) {
     113               0 :     mRepeatTimer->InitWithCallback(this, REPEAT_DELAY, nsITimer::TYPE_ONE_SHOT);
     114                 :   }
     115               0 :   return NS_OK;
     116                 : }
     117                 : 
     118               0 : NS_IMPL_ISUPPORTS1(nsRepeatService, nsITimerCallback)

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