Line data    Source code

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       3             : ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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       6             : ** This file is part of the QtTest module of the Qt Toolkit.
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      40             : ****************************************************************************/
      41             : 
      42             : #ifndef QTESTEVENTLOOP_H
      43             : #define QTESTEVENTLOOP_H
      44             : 
      45             : #include <QtTest/qtest_global.h>
      46             : 
      47             : #include <QtCore/qcoreapplication.h>
      48             : #include <QtCore/qeventloop.h>
      49             : #include <QtCore/qobject.h>
      50             : #include <QtCore/qpointer.h>
      51             : 
      52             : QT_BEGIN_NAMESPACE
      53             : 
      54             : 
      55           5 : class Q_TESTLIB_EXPORT QTestEventLoop : public QObject
      56             : {
      57             :     Q_OBJECT
      58             : 
      59             : public:
      60           5 :     inline QTestEventLoop(QObject *aParent = 0)
      61           5 :         : QObject(aParent), inLoop(false), _timeout(false), timerId(-1), loop(0) {}
      62             : 
      63             :     inline void enterLoopMSecs(int ms);
      64             :     inline void enterLoop(int secs) { enterLoopMSecs(secs * 1000); }
      65             : 
      66             :     inline void changeInterval(int secs)
      67             :     { killTimer(timerId); timerId = startTimer(secs * 1000); }
      68             : 
      69             :     inline bool timeout() const
      70             :     { return _timeout; }
      71             : 
      72             :     inline static QTestEventLoop &instance()
      73             :     {
      74             :         static QPointer<QTestEventLoop> testLoop;
      75             :         if (testLoop.isNull())
      76             :             testLoop = new QTestEventLoop(QCoreApplication::instance());
      77             :         return *static_cast<QTestEventLoop *>(testLoop);
      78             :     }
      79             : 
      80             : public Q_SLOTS:
      81             :     inline void exitLoop();
      82             : 
      83             : protected:
      84             :     inline void timerEvent(QTimerEvent *e);
      85             : 
      86             : private:
      87             :     bool inLoop;
      88             :     bool _timeout;
      89             :     int timerId;
      90             : 
      91             :     QEventLoop *loop;
      92             : };
      93             : 
      94           6 : inline void QTestEventLoop::enterLoopMSecs(int ms)
      95             : {
      96           6 :     Q_ASSERT(!loop);
      97             : 
      98           6 :     QEventLoop l;
      99             : 
     100           6 :     inLoop = true;
     101           6 :     _timeout = false;
     102             : 
     103           6 :     timerId = startTimer(ms);
     104             : 
     105           6 :     loop = &l;
     106           6 :     l.exec();
     107           6 :     loop = 0;
     108           6 : }
     109             : 
     110           6 : inline void QTestEventLoop::exitLoop()
     111             : {
     112           6 :     if (timerId != -1)
     113           6 :         killTimer(timerId);
     114           6 :     timerId = -1;
     115             : 
     116           6 :     if (loop)
     117           6 :         loop->exit();
     118             : 
     119           6 :     inLoop = false;
     120           6 : }
     121             : 
     122           0 : inline void QTestEventLoop::timerEvent(QTimerEvent *e)
     123             : {
     124           0 :     if (e->timerId() != timerId)
     125           0 :         return;
     126           0 :     _timeout = true;
     127           0 :     exitLoop();
     128             : }
     129             : 
     130             : QT_END_NAMESPACE
     131             : 
     132             : #endif