Add enabled property to the QML Connections element

Now allows a quick way to enable/disable the signal handlers in the
QML Connections element. Updated test file to have objectName and added
test for this new functionality. Set to be available as of QtQml2.3.

[ChangeLog][QML Elements] Allow enabling/disabling of connections established using a Connections element

Change-Id: Ib0de2b3c78bb529ef74d5b4bb4ccb0f335cc50de
Task-number: QTBUG-36350
Reviewed-by: Michael Brasser <michael.brasser@live.com>

1 files changed, 30 insertions, 1 deletions

diff --git a/src/qml/types/qqmlconnections.cpp b/src/qml/types/qqmlconnections.cpp
index 6a93410ecb..5f69bf5f94 100644
--- a/src/qml/types/qqmlconnections.cpp
+++ b/src/qml/types/qqmlconnections.cpp
@@ -51,11 +51,12 @@ QT_BEGIN_NAMESPACE
 class QQmlConnectionsPrivate : public QObjectPrivate
 {
 public:
-    QQmlConnectionsPrivate() : target(0), targetSet(false), ignoreUnknownSignals(false), componentcomplete(true) {}
+    QQmlConnectionsPrivate() : target(0), enabled(true), targetSet(false), ignoreUnknownSignals(false), componentcomplete(true) {}
 
     QList<QQmlBoundSignal*> boundsignals;
     QObject *target;
 
+    bool enabled;
     bool targetSet;
     bool ignoreUnknownSignals;
     bool componentcomplete;
@@ -177,6 +178,34 @@ void QQmlConnections::setTarget(QObject *obj)
 }
 
 /*!
+    \qmlproperty bool QtQml::Connections::enabled
+    \since 5.7
+
+    This property holds whether the item accepts change events.
+
+    By default, this property is \c true.
+*/
+bool QQmlConnections::isEnabled() const
+{
+    Q_D(const QQmlConnections);
+    return d->enabled;
+}
+
+void QQmlConnections::setEnabled(bool enabled)
+{
+    Q_D(QQmlConnections);
+    if (d->enabled == enabled)
+        return;
+
+    d->enabled = enabled;
+
+    foreach (QQmlBoundSignal *s, d->boundsignals)
+        s->setEnabled(d->enabled);
+
+    emit enabledChanged();
+}
+
+/*!
     \qmlproperty bool QtQml::Connections::ignoreUnknownSignals
 
     Normally, a connection to a non-existent signal produces runtime errors.