iOS: QIOSEventDispatcher: add runloop source for processing events

Change-Id: I6cd649a493dab9a982d71921f19d2a9252fc14b0
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>

2 files changed, 63 insertions, 7 deletions

diff --git a/src/plugins/platforms/ios/qioseventdispatcher.h b/src/plugins/platforms/ios/qioseventdispatcher.h
index 479ec1d0a0..db3eb85ffc 100644
--- a/src/plugins/platforms/ios/qioseventdispatcher.h
+++ b/src/plugins/platforms/ios/qioseventdispatcher.h
@@ -77,6 +77,7 @@
 #define QEVENTDISPATCHER_IOS_P_H
 
 #include <QtCore/qabstracteventdispatcher.h>
+#include <CoreFoundation/CoreFoundation.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -85,7 +86,8 @@ class QIOSEventDispatcher : public QAbstractEventDispatcher
     Q_OBJECT
 
 public:
-    explicit QIOSEventDispatcher(QObject *parent = 0); ~QIOSEventDispatcher();
+    explicit QIOSEventDispatcher(QObject *parent = 0);
+    ~QIOSEventDispatcher();
 
     bool processEvents(QEventLoop::ProcessEventsFlags flags);
     bool hasPendingEvents();
@@ -103,6 +105,11 @@ public:
     void wakeUp();
     void interrupt();
     void flush();
+
+private:
+    CFRunLoopSourceRef m_postedEventsSource;
+    static void postedEventsSourceCallback(void *info);
+    void processPostedEvents();
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/ios/qioseventdispatcher.mm b/src/plugins/platforms/ios/qioseventdispatcher.mm
index 12f448488e..85854f711e 100644
--- a/src/plugins/platforms/ios/qioseventdispatcher.mm
+++ b/src/plugins/platforms/ios/qioseventdispatcher.mm
@@ -75,42 +75,80 @@
 
 #include "qioseventdispatcher.h"
 #include <qdebug.h>
+#include <qpa/qwindowsysteminterface.h>
 
 QT_BEGIN_NAMESPACE
 QT_USE_NAMESPACE
 
+static Boolean runLoopSourceEqualCallback(const void *info1, const void *info2)
+{
+    return info1 == info2;
+}
+
+void QIOSEventDispatcher::postedEventsSourceCallback(void *info)
+{
+    QIOSEventDispatcher *self = static_cast<QIOSEventDispatcher *>(info);
+    self->processPostedEvents();
+}
+
+void QIOSEventDispatcher::processPostedEvents()
+{
+    qDebug() << __FUNCTION__ << "called";
+    QWindowSystemInterface::sendWindowSystemEvents(QEventLoop::AllEvents);
+}
+
 QIOSEventDispatcher::QIOSEventDispatcher(QObject *parent)
+    : QAbstractEventDispatcher(parent)
 {
-    Q_UNUSED(parent);
-    qDebug() << __FUNCTION__ << "eventdispatcher not implemented";
+    CFRunLoopRef mainRunLoop = CFRunLoopGetMain();
+
+    CFRunLoopSourceContext context;
+    bzero(&context, sizeof(CFRunLoopSourceContext));
+    context.equal = runLoopSourceEqualCallback;
+    context.info = this;
+
+    // source used to send posted events:
+    context.perform = QIOSEventDispatcher::postedEventsSourceCallback;
+    m_postedEventsSource = CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &context);
+    Q_ASSERT(m_postedEventsSource);
+    CFRunLoopAddSource(mainRunLoop, m_postedEventsSource, kCFRunLoopCommonModes);
 }
 
 QIOSEventDispatcher::~QIOSEventDispatcher()
-{}
+{
+    CFRunLoopRef mainRunLoop = CFRunLoopGetMain();
+    CFRunLoopRemoveSource(mainRunLoop, m_postedEventsSource, kCFRunLoopCommonModes);
+    CFRelease(m_postedEventsSource);
+}
 
 bool QIOSEventDispatcher::processEvents(QEventLoop::ProcessEventsFlags flags)
 {
     Q_UNUSED(flags);
+    qDebug() << __FUNCTION__ << "not implemented";
     return false;
 }
 
 bool QIOSEventDispatcher::hasPendingEvents()
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     return false;
 }
 
 void QIOSEventDispatcher::registerSocketNotifier(QSocketNotifier *notifier)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(notifier);
 }
 
 void QIOSEventDispatcher::unregisterSocketNotifier(QSocketNotifier *notifier)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(notifier);
 }
 
 void QIOSEventDispatcher::registerTimer(int timerId, int interval, Qt::TimerType timerType, QObject *object)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(timerId);
     Q_UNUSED(interval);
     Q_UNUSED(timerType);
@@ -119,36 +157,47 @@ void QIOSEventDispatcher::registerTimer(int timerId, int interval, Qt::TimerType
 
 bool QIOSEventDispatcher::unregisterTimer(int timerId)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(timerId);
     return false;
 }
 
 bool QIOSEventDispatcher::unregisterTimers(QObject *object)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(object);
     return false;
 }
 
 QList<QAbstractEventDispatcher::TimerInfo> QIOSEventDispatcher::registeredTimers(QObject *object) const
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(object);
     return QList<TimerInfo>();
 }
 
 int QIOSEventDispatcher::remainingTime(int timerId)
 {
+    qDebug() << __FUNCTION__ << "not implemented";
     Q_UNUSED(timerId);
     return 0;
 }
 
 void QIOSEventDispatcher::wakeUp()
-{}
+{
+    CFRunLoopSourceSignal(m_postedEventsSource);
+    CFRunLoopWakeUp(CFRunLoopGetMain());
+}
 
 void QIOSEventDispatcher::interrupt()
-{}
+{
+    qDebug() << __FUNCTION__ << "not implemented";
+}
 
 void QIOSEventDispatcher::flush()
-{}
+{
+    qDebug() << __FUNCTION__ << "not implemented";
+}
 
 QT_END_NAMESPACE