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 struct ImplIdleData
  25 {
  26     Link<>      maIdleHdl;
  27     sal_uInt16      mnPriority;
  28     bool        mbTimeout;
  29 };
  30
  31 #define IMPL_IDLETIMEOUT         350
  32
  33 ImplIdleMgr::ImplIdleMgr():
  34     mbInDestruction(false)
  35 {
  36     mpIdleList  = new ImplIdleList();
  37
  38     maTimer.SetTimeout( IMPL_IDLETIMEOUT );
  39     maTimer.SetTimeoutHdl( LINK( this, ImplIdleMgr, TimeoutHdl ) );
  40 }
  41
  42 ImplIdleMgr::~ImplIdleMgr()
  43 {
  44     mbInDestruction = true;
  45     // Liste loeschen
  46     for ( size_t i = 0, n = mpIdleList->size(); i < n; ++i ) {
  47         ImplIdleData* pIdleData = (*mpIdleList)[ i ];
  48         pIdleData->maIdleHdl.Call( GetpApp() );
  49         delete pIdleData;
  50     }
  51     mpIdleList->clear();
  52     delete mpIdleList;
  53 }
  54
  55 bool ImplIdleMgr::InsertIdleHdl( const Link<>& rLink, sal_uInt16 nPriority )
  56 {
  57     size_t nPos = (size_t)-1;
  58     size_t n = mpIdleList->size();
  59     for ( size_t i = 0; i < n; ++i ) {
  60         // we need to check each element to verify that rLink isn't in the array
  61         if ( (*mpIdleList)[ i ]->maIdleHdl == rLink ) {
  62             return false;
  63         }
  64         if ( nPriority <= (*mpIdleList)[ i ]->mnPriority ) {
  65             nPos = i;
  66         }
  67     }
  68
  69     ImplIdleData* pIdleData = new ImplIdleData;
  70     pIdleData->maIdleHdl    = rLink;
  71     pIdleData->mnPriority   = nPriority;
  72     pIdleData->mbTimeout    = false;
  73
  74     if ( nPos < mpIdleList->size() ) {
  75         ImplIdleList::iterator it = mpIdleList->begin();
  76         ::std::advance( it, nPos );
  77         mpIdleList->insert( it, pIdleData );
  78     } else {
  79         mpIdleList->push_back( pIdleData );
  80     }
  81
  82     // if Timer was not started already then start it now
  83     if ( !maTimer.IsActive() )
  84         maTimer.Start();
  85
  86     return true;
  87 }
  88
  89 void ImplIdleMgr::RemoveIdleHdl( const Link<>& rLink )
  90 {
  91     if (mbInDestruction)
  92         return;
  93
  94     for ( ImplIdleList::iterator it = mpIdleList->begin(); it != mpIdleList->end(); ++it ) {
  95         if ( (*it)->maIdleHdl == rLink ) {
  96             delete *it;
  97             mpIdleList->erase( it );
  98             break;
  99         }
 100     }
 101
 102     // there are no more handlers...
 103     if ( mpIdleList->empty() )
 104         maTimer.Stop();
 105 }
 106
 107 IMPL_LINK_NOARG_TYPED(ImplIdleMgr, TimeoutHdl, Timer *, void)
 108 {
 109     for ( size_t i = 0; i < mpIdleList->size(); ++i ) {
 110         ImplIdleData* pIdleData = (*mpIdleList)[ i ];
 111         if ( !pIdleData->mbTimeout ) {
 112             pIdleData->mbTimeout = true;
 113             pIdleData->maIdleHdl.Call( GetpApp() );
 114             // May have been removed in the handler
 115             for ( size_t j = 0; j < mpIdleList->size(); ++j ) {
 116                 if ( (*mpIdleList)[ j ] == pIdleData ) {
 117                     pIdleData->mbTimeout = false;
 118                     break;
 119                 }
 120             }
 121         }
 122     }
 123 }
 124
 125 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */