Dialog component crashing on its most simple use (hidden parameter default
value)
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Key: TAPESTRY-1699
URL: https://issues.apache.org/jira/browse/TAPESTRY-1699
Project: Tapestry
Issue Type: Bug
Affects Versions: 4.1.2
Reporter: Martino Piccinato
Well this is a replacement for TAPESTRY-1682 that was opened due to my total
misunderstanding of binding mechanism on default-value for parameters (sorry
for that).
In fact the problem that lead me to that is that Dialog component as it is,
used in its simplest form (opening and closing a dialog popup) will fail
without overriding default binding for hidden parameter as calling
hide()/show() methods will try to write on a invariant binding (the default
"true" constant). I think this is a bug as default behaviour for a component
should be to work as expected and default values shouldn't get in the way.
My proposal is then to remove defaul binding from parameter so to have it
unbounded by default
<parameter name="hidden"/>
and add "direct" initialization of the parameter by default
public void finishLoad() {
super.finishLoad();
if (!isParameterBound("hidden")) {
setHidden(true);
}
}
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