How to queue the invocation of a slot instead of calling directly ?
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Dear all,
with the QMetaObject from C++ it is possible to use the invokeMethod with the option to queue the invocation to the event thread instead of calling immediately.
I'm wondering if there is an analogous mechanism on the QML side.Thanks,
Gianluca. -
Not directly. There was a WIP patch to add Qt.later() and Qt.after() functions to the Qt global object, to allow this use-case, but it couldn't handle the case where the context got deleted out from underneath it gracefully.
The closest you can do is create a Timer object with a timeout of 1 millisecond (actually, 0 might work, not sure), and invoke the function in the onTriggered / onTimeout or whatever it's called, handler.
@
Timer {
id: fnQueue
property var queuedFunction
interval: 1
onTriggered: { queuedFunction.call() }
}// some imperative code...
fnQueue.queuedFunction = someFunc;
fnQueue.start()
@ -
[quote author="chrisadams" date="1402025578"]
The closest you can do is create a Timer object with a timeout of 1 millisecond (actually, 0 might work, not sure), and invoke the function in the onTriggered / onTimeout or whatever it's called, handler.@[/quote]
Agreed, without adding additional underlying code this is probably the best solution. An interval of 0 works for this too, in my experience.
