Binding QML Connections to 'enabled' property causes either a warning or an error

[Kamichanw]

When I try to set onEnabledChanged in Connections, it shows a warning that I don't think it should be: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
Example code of the warning:

import QtQuick
import QtQuick.Window

Window {
    id: control
    visible: true
    width: 640
    height: 480

    Item {
        id: item
    }    

    Connections {
        target: item
        enabled: control.visible // any condition
        onEnabledChanged: console.log("whatever")
    }
}

How to avoid this warning?

[GrecKo]

@Kamichanw Another solution would be to bind to the property outside of Connections and add a property change signal handler there:

Connections {
    id: connections
    target: item
    enabled: control.visible // any condition
}
readonly property bool connectionsEnabled: connections.enabled
onConnectionsEnabledChanged: print("connections enabled", connectionsEnabled)

[Kamichanw]

Or, how to connect onEnableChanged in Connections?

[Bob64]

@Kamichanw It's just telling you to use a more modern syntax I believe:

    Connections {
        ...
        function onEnabledChanged() { console.log("whatever"); }
    }

[Kamichanw]

@Bob64 You misunderstood my point, I want to set onEnabledChanged for Connections.enabled. However, I also found a solution, it might be weird but work well.

Connections {
      target: item
      enabled:  {
          if (enabled)
              console.log("enabled is true")
          else
              console.log("enabled is false)
          return control.visible // any condition
      } 
}

I'm not pretty sure about it whether has problems.

[GrecKo]

@Kamichanw Another solution would be to bind to the property outside of Connections and add a property change signal handler there:

Connections {
    id: connections
    target: item
    enabled: control.visible // any condition
}
readonly property bool connectionsEnabled: connections.enabled
onConnectionsEnabledChanged: print("connections enabled", connectionsEnabled)

[Kamichanw]

@GrecKo bravo