[Qt-qml] how to connect to destroyed signal in QML/javascrit?

[Pekka.E.Jokela at nokia.com]

Hi,
can you be a bit more specific?

I've tried it as:

var someItem = getMeItem()
connectionsElement.target = someItem
someItem.destroy()


With helper functions/QML:
            function getMeItem() {
                // dummy
                return Qt.createQmlObject('import QtQuick 2.0; Rectangle { Component.onDestruction: console.log(\"XXX ~Rectangle. this I cannot access") }', root)
            }

            Connections {
                id: connectionsElement
                target: null
                Component.onDestruction: someItemDeleted()
            }

            function someItemDeleted() {
                console.log("XXX someItem deleted. This I want get called ")
            }

The ~Rectangle gets called but not someItemDeleted function. 

 -P
________________________________________
From: Kennedy Aaron (Nokia-DES-Qt/Brisbane)
Sent: Wednesday, November 16, 2011 12:03 PM
To: Jokela Pekka.E (Nokia-MP-Qt/Tampere)
Cc: <qt-qml at qt.nokia.com>
Subject: Re: [Qt-qml] how to connect to destroyed signal in QML/javascrit?

Hi,

Try connecting to the "Component.onDestruction" signal.

Cheers,

Aaron

On 16/11/2011, at 8:46 AM, ext Pekka.E.Jokela at nokia.com<mailto:Pekka.E.Jokela at nokia.com> wrote:

Hi,
How do I know when item is deleted (destructor called) in QML/JavaScript?

I tried:
Connections {
    target: someItem
    onDestroyed: console.log(“someItem deleted”)
}
==> results: QML Connections: Cannot assign to non-existing property “onDestroyed”

And in JavaScript:
someItem.destroyed.connect(loggingItem, someItemDeletedFunction)
==> results: TypeError: Cannot call method ´connect´of undefined.

Reading the documentation and the code (5.0), the QObject has signal destroyed(). The someItem is defined in cpp and it’s registed to QML (otherwise it works fine). Replacing the code snippets with any other signal works fine.

Any ideas?

Thanks,
-Pekka

P.s I do not control the construction of the item so I cannot override the Component.onCompleted: in the element definition.
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