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Prevent crash on switching to 3D display twice

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This commit is contained in:
Brad Davis 2017-05-04 12:04:21 -07:00
parent 7cb2bff4c5
commit fb995bebf1
1 changed files with 7 additions and 3 deletions
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10
libraries/ui/src/VrMenu.cpp
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@ -37,15 +37,17 @@ public:
qmlObject->setObjectName(uuid.toString());
// Make sure we can find it again in the future
updateQmlItemFromAction();
auto connection = QObject::connect(action, &QAction::changed, [=] {
_changedConnection = QObject::connect(action, &QAction::changed, [=] {
updateQmlItemFromAction();
});
QObject::connect(qApp, &QCoreApplication::aboutToQuit, [=] {
QObject::disconnect(connection);
_shutdownConnection = QObject::connect(qApp, &QCoreApplication::aboutToQuit, [=] {
QObject::disconnect(_changedConnection);
});
}
~MenuUserData() {
QObject::disconnect(_changedConnection);
QObject::disconnect(_shutdownConnection);
_action->setUserData(USER_DATA_ID, nullptr);
_qml->setUserData(USER_DATA_ID, nullptr);
}
@ -104,6 +106,8 @@ public:
private:
MenuUserData(const MenuUserData&);
QMetaObject::Connection _shutdownConnection;
QMetaObject::Connection _changedConnection;
QAction* _action { nullptr };
QObject* _qml { nullptr };
};