libkdepim/agentprogressmonitor.cpp

   1 /*
   2     Copyright (c) 2009 Constantin Berzan <exit3219@gmail.com>
   3
   4     This library is free software; you can redistribute it and/or modify it
   5     under the terms of the GNU Library General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or (at your
   7     option) any later version.
   8
   9     This library is distributed in the hope that it will be useful, but WITHOUT
  10     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
  12     License for more details.
  13
  14     You should have received a copy of the GNU Library General Public License
  15     along with this library; see the file COPYING.LIB.  If not, write to the
  16     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17     02110-1301, USA.
  18 */
  19
  20 #include "agentprogressmonitor.h"
  21
  22 #include <Akonadi/AgentManager>
  23
  24 #include <KDebug>
  25
  26 #include <QWeakPointer>
  27
  28 using namespace Akonadi;
  29 using namespace KPIM;
  30
  31 class AgentProgressMonitor::Private
  32 {
  33   public:
  34     Private( AgentProgressMonitor *qq, const AgentInstance &agnt, ProgressItem *itm )
  35       : q( qq )
  36       , agent( agnt )
  37       , item ( itm )
  38     {
  39     }
  40
  41     // slots:
  42     void abort();
  43     void instanceProgressChanged( const AgentInstance &instance );
  44     void instanceStatusChanged( const AgentInstance &instance );
  45     void instanceRemoved( const Akonadi::AgentInstance& instance );
  46     void instanceNameChanged( const Akonadi::AgentInstance& instance );
  47     AgentProgressMonitor *const q;
  48     AgentInstance agent;
  49     QWeakPointer<ProgressItem> const item;
  50 };
  51
  52 void AgentProgressMonitor::Private::abort()
  53 {
  54   agent.abortCurrentTask();
  55 }
  56
  57
  58 void AgentProgressMonitor::Private::instanceRemoved( const Akonadi::AgentInstance &instance )
  59 {
  60   Q_UNUSED( instance );
  61
  62   if ( !item.data() ) {
  63     return;
  64   }
  65
  66   item.data()->disconnect( q ); // avoid abort call
  67   item.data()->cancel();
  68   if( item.data() ) {
  69     item.data()->setComplete();
  70   }
  71 }
  72
  73 void AgentProgressMonitor::Private::instanceProgressChanged( const AgentInstance &instance )
  74 {
  75   if ( !item.data() ) {
  76     return;
  77   }
  78
  79   if ( agent == instance ) {
  80     //Why ? agent = instance if agent == instance.
  81     agent = instance;
  82     const int progress = agent.progress();
  83     if ( progress >= 0 ) {
  84       item.data()->setProgress( progress );
  85     }
  86   }
  87 }
  88
  89 void AgentProgressMonitor::Private::instanceStatusChanged( const AgentInstance &instance )
  90 {
  91   if ( !item.data() )
  92     return;
  93
  94   if ( agent == instance ) {
  95     //Why ? agent = instance if agent == instance.
  96     agent = instance;
  97     item.data()->setStatus( agent.statusMessage() );
  98     switch ( agent.status() ) {
  99       case AgentInstance::Idle:
 100         if( item.data() )
 101           item.data()->setComplete();
 102         break;
 103       case AgentInstance::Running:
 104         break;
 105       case AgentInstance::Broken:
 106         item.data()->disconnect( q ); // avoid abort call
 107         item.data()->cancel();
 108         if( item.data() )
 109            item.data()->setComplete();
 110         break;
 111       default:
 112         Q_ASSERT( false );
 113     }
 114   }
 115 }
 116
 117 void AgentProgressMonitor::Private::instanceNameChanged( const Akonadi::AgentInstance& instance )
 118 {
 119   if ( !item.data() )
 120     return;
 121   item.data()->setLabel(instance.name());
 122 }
 123
 124
 125
 126 AgentProgressMonitor::AgentProgressMonitor( const AgentInstance &agent,
 127     ProgressItem *item )
 128   : QObject( item )
 129   , d( new Private( this, agent, item ) )
 130 {
 131   connect( AgentManager::self(), SIGNAL(instanceProgressChanged(Akonadi::AgentInstance)),
 132       this, SLOT(instanceProgressChanged(Akonadi::AgentInstance)) );
 133   connect( AgentManager::self(), SIGNAL(instanceStatusChanged(Akonadi::AgentInstance)),
 134       this, SLOT(instanceStatusChanged(Akonadi::AgentInstance)) );
 135   connect( Akonadi::AgentManager::self(), SIGNAL(instanceRemoved(Akonadi::AgentInstance)),
 136            this, SLOT(instanceRemoved(Akonadi::AgentInstance)) );
 137   connect( Akonadi::AgentManager::self(), SIGNAL(instanceNameChanged(Akonadi::AgentInstance)),
 138            this, SLOT(instanceNameChanged(Akonadi::AgentInstance)) );
 139   // TODO connect to instanceError, instanceWarning, instanceOnline ?
 140   // and do what?
 141
 142   connect( item, SIGNAL(progressItemCanceled(KPIM::ProgressItem*)),
 143       this, SLOT(abort()) );
 144
 145   // TODO handle offline case
 146 }
 147
 148 AgentProgressMonitor::~AgentProgressMonitor()
 149 {
 150   delete d;
 151 }
 152
 153 #include "agentprogressmonitor.moc"