Hi,
I come into a tricky javascript issue with a listener.
The idea is to have a description of several buttons like this :
[{lbl:"OK", cde:okFunction, ctx:this}, {lbl:"Cancel",
cde:cancelFunction, ctx:this}]
Then, a static function is called to build the panel and listeners
like that :
f : function(currentDesc) {
var buttonPane = new qx.ui.container.Composite(new
qx.ui.layout.HBox(5, "right"));
for (var i = 0, buttonDescLength = buttonDesc.length; i <
buttonDescLength; i++) {
var button = new qx.ui.form.Button(buttonDesc[i]
['lbl']);
var currentDesc = buttonDesc[i];
var listenerCode = function() {
button.debug("Button " + currentDesc['lbl'] +
" CLICK ! code " + currentDesc['cde']);
if (currentDesc['cde'] != null &&
currentDesc['ctx'] != null) {
currentDesc['cde'].call(currentDesc['ctx']);
}
};
button.addListener("execute", listenerCode,
button); // I try here with and without context as I think it doesn't
matter in this case because of the use of call.
buttonPane.add(button);
}
}
Whatever I try, it is always the cancel button code that is launched
in the listener.
I guess it is linked to some closure and variable that are not stored
in the closure's context : currentDesc['cde'] doesn't "stick" to the
okFunction during the loop ??
Could it be the static ? Only the factory is static, so the definition
line is just pass as a parameter to the static function.
Like that : blabla.f([{lbl:"OK", cde:okFunction, ctx:this},
{lbl:"Cancel", cde:cancelFunction, ctx:this}]); // So here, ctx:this
make sense.
Any idea ?
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