qt-creator/src/plugins/qmlprofiler/canvas/qdeclarativecanvastimer.cpp

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#include "qdeclarativecanvastimer_p.h"

#include <QJSEngine>
#include <QJSValue>
#include <qtimer.h>

QT_BEGIN_NAMESPACE

Q_GLOBAL_STATIC(QList<CanvasTimer*> , activeTimers);

CanvasTimer::CanvasTimer(QObject *parent, const QJSValue &data)
    : QTimer(parent), m_value(data)
{
}

void CanvasTimer::handleTimeout()
{
    Q_ASSERT(m_value.isCallable());
    m_value.call();
    if (isSingleShot())
        removeTimer(this);
}

void CanvasTimer::createTimer(QObject *parent, const QJSValue &val, long timeout, bool singleshot)
{

    CanvasTimer *timer = new CanvasTimer(parent, val);
    timer->setInterval(timeout);
    timer->setSingleShot(singleshot);
    connect(timer, SIGNAL(timeout()), timer, SLOT(handleTimeout()));
    activeTimers()->append(timer);
    timer->start();
}

void CanvasTimer::removeTimer(CanvasTimer *timer)
{
    activeTimers()->removeAll(timer);
    timer->deleteLater();
}

void CanvasTimer::removeTimer(const QJSValue &val)
{
    if (!val.isCallable())
        return;

    for (int i = 0 ; i < activeTimers()->count() ; ++i) {
        CanvasTimer *timer = activeTimers()->at(i);
        if (timer->equals(val)) {
            removeTimer(timer);
            return;
        }
    }
}

QT_END_NAMESPACE