Hi deech,
the apply method is not called, because the reference never changes.
What you can do is to add a event listener on "changeValue" which is
fired from the qx.ui.basic.Label.
properties : {
label : {
nullable : true,
apply : "label_changed"
}
},
members :
{
label_changed : function(value, old)
{
if (old) {
old.removeListener("changeValue", this.onLabelChangeValue);
}
if (value) {
value.addListener("changeValue", this.onLabelChangeValue, this);
}
// Old code, perhaps you have to change it
},
onLabelChangeValue : function(e)
{
var value = e.getData();
var old = e.getOldData();
this.debug("value/old: " + value + "/" + old);
}
... // other methods
}
Cheers,
Chris
aditya siram schrieb:
> Hi all,
> I currently have a qx.ui.basic.Label as a class property:
> properties : {
> label : {
> nullable : true,
> apply : "label_changed"
> }
> }
>
> The "label_changed" method is fired once when the label is
> instantiated, but not when the "value" property of the label changes.
> Is there some way to have the apply method fire when certain inner
> properties of an object change?
>
> thanks ,
> -deech
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Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
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