workspace/plasma/dataengines/nowplaying/playerinterface/pollingwatcher.cpp

   1 #include "pollingwatcher.h"
   2
   3 #include <QTimer>
   4
   5 #include <KDebug>
   6
   7 #include "player.h"
   8 #include "playerfactory.h"
   9
  10 PollingWatcher::PollingWatcher(QObject* parent)
  11     : QObject(parent),
  12       m_timer(0)
  13 {
  14     setObjectName("PollingWatcher");
  15 }
  16
  17 QList<Player::Ptr> PollingWatcher::players()
  18 {
  19     return m_players.values();
  20 }
  21
  22 void PollingWatcher::addFactory(PollingPlayerFactory* factory)
  23 {
  24     if (factory->exists()) {
  25         Player::Ptr player = factory->create();
  26         if (!player.isNull()) {
  27             m_players.insert(player);
  28             m_usedFactories.insert(factory);
  29             emit newPlayer(player);
  30         } else {
  31             kWarning() << "Failed to create a player";
  32             m_polledFactories.insert(factory);
  33         }
  34     } else {
  35         m_polledFactories.insert(factory);
  36     }
  37     if (!m_timer) {
  38         m_timer = new QTimer(this);
  39         m_timer->setInterval(5000);
  40         connect(m_timer, SIGNAL(timeout()), this, SLOT(checkPlayers()));
  41         m_timer->start();
  42     }
  43 }
  44
  45 void PollingWatcher::checkPlayers()
  46 {
  47     foreach (Player::Ptr player, m_players) {
  48         if (!player->isRunning()) {
  49             m_players.remove(player);
  50             PollingPlayerFactory* factory =
  51                     qobject_cast<PollingPlayerFactory*>(player->factory());
  52             if (factory) {
  53                 m_usedFactories.remove(factory);
  54                 m_polledFactories.insert(factory);
  55             } else {
  56                 kWarning() << "Missing factory for player" << player->name();
  57             }
  58             emit playerDisappeared(player);
  59         }
  60     }
  61     foreach (PollingPlayerFactory* factory, m_polledFactories) {
  62         if (factory->exists()) {
  63             Player::Ptr player = factory->create();
  64             if (!player.isNull()) {
  65                 m_players.insert(player);
  66                 m_polledFactories.remove(factory);
  67                 m_usedFactories.insert(factory);
  68                 emit newPlayer(player);
  69             } else {
  70                 kWarning() << "Failed to create a player";
  71             }
  72         }
  73     }
  74     m_timer->start();
  75 }
  76