vcl/source/app/idlemgr.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <vcl/svapp.hxx>
  21
  22 #include <idlemgr.hxx>
  23
  24 // =======================================================================
  25
  26 struct ImplIdleData
  27 {
  28     Link        maIdleHdl;
  29     sal_uInt16      mnPriority;
  30     bool        mbTimeout;
  31 };
  32
  33 #define IMPL_IDLETIMEOUT         350
  34
  35 // =======================================================================
  36
  37 ImplIdleMgr::ImplIdleMgr()
  38 {
  39     mpIdleList  = new ImplIdleList();
  40
  41     maTimer.SetTimeout( IMPL_IDLETIMEOUT );
  42     maTimer.SetTimeoutHdl( LINK( this, ImplIdleMgr, TimeoutHdl ) );
  43 }
  44
  45 // -----------------------------------------------------------------------
  46
  47 ImplIdleMgr::~ImplIdleMgr()
  48 {
  49     // Liste loeschen
  50     for ( size_t i = 0, n = mpIdleList->size(); i < n; ++i ) {
  51         delete (*mpIdleList)[ i ];
  52     }
  53     mpIdleList->clear();
  54     delete mpIdleList;
  55 }
  56
  57 // -----------------------------------------------------------------------
  58
  59 sal_Bool ImplIdleMgr::InsertIdleHdl( const Link& rLink, sal_uInt16 nPriority )
  60 {
  61     size_t nPos = (size_t)-1;
  62     size_t n = mpIdleList->size();
  63     for ( size_t i = 0; i < n; ++i ) {
  64         // we need to check each element to verify that rLink isn't in the array
  65         if ( (*mpIdleList)[ i ]->maIdleHdl == rLink ) {
  66             return sal_False;
  67         }
  68         if ( nPriority <= (*mpIdleList)[ i ]->mnPriority ) {
  69             nPos = i;
  70         }
  71     }
  72
  73     ImplIdleData* pIdleData = new ImplIdleData;
  74     pIdleData->maIdleHdl    = rLink;
  75     pIdleData->mnPriority   = nPriority;
  76     pIdleData->mbTimeout    = false;
  77
  78     if ( nPos < mpIdleList->size() ) {
  79         ImplIdleList::iterator it = mpIdleList->begin();
  80         ::std::advance( it, nPos );
  81         mpIdleList->insert( it, pIdleData );
  82     } else {
  83         mpIdleList->push_back( pIdleData );
  84     }
  85
  86     // if Timer was not started already then start it now
  87     if ( !maTimer.IsActive() )
  88         maTimer.Start();
  89
  90     return sal_True;
  91 }
  92
  93 // -----------------------------------------------------------------------
  94
  95 void ImplIdleMgr::RemoveIdleHdl( const Link& rLink )
  96 {
  97     for ( ImplIdleList::iterator it = mpIdleList->begin(); it != mpIdleList->end(); ++it ) {
  98         if ( (*it)->maIdleHdl == rLink ) {
  99             delete *it;
 100             mpIdleList->erase( it );
 101             break;
 102         }
 103     }
 104
 105     // there are no more handlers...
 106     if ( mpIdleList->empty() )
 107         maTimer.Stop();
 108 }
 109
 110 // -----------------------------------------------------------------------
 111
 112 IMPL_LINK_NOARG(ImplIdleMgr, TimeoutHdl)
 113 {
 114     for ( size_t i = 0; i < mpIdleList->size(); ++i ) {
 115         ImplIdleData* pIdleData = (*mpIdleList)[ i ];
 116         if ( !pIdleData->mbTimeout ) {
 117             pIdleData->mbTimeout = true;
 118             pIdleData->maIdleHdl.Call( GetpApp() );
 119             // May have been removed in the handler
 120             for ( size_t j = 0; j < mpIdleList->size(); ++j ) {
 121                 if ( (*mpIdleList)[ j ] == pIdleData ) {
 122                     pIdleData->mbTimeout = false;
 123                     break;
 124                 }
 125             }
 126         }
 127     }
 128
 129     return 0;
 130 }
 131
 132 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */