Hi John,
Thanks for the suggestion, but that did not work. I suspect it didn't work
for the same reason that my attempt to use setEnabled(true/false) on the
AttributeModifier didn't work.
It has to be with how wicket cache's pages. I still don't quite grok how it
decides to re-render stuff...
My code:
public CurrentProfile(String id)
{
....
displayModel = new DisplayModel();
loginPanel.add(new AttributeModifier("style", true, displayModel));
....
Link link = new AjaxFallbackLink("loginLink", new Model(loginText))
{
@Override
public void onClick(final AjaxRequestTarget target)
{
loginPanel.setVisible(!loginPanel.isVisible());
loginLabel.setModelObject(loginPanel.isVisible() ?
cancelText : loginText);
if (target != null)
{
displayModel.setHidePanel(true);
target.addComponent(loginPanel);
target.addComponent(loginLabel);
target.appendJavascript(new
BlindDown(loginPanel).toJavascript());
}
}
};
....
}
private class DisplayModel extends AbstractReadOnlyModel
{
boolean hidePanel = false;
@Override
public Object getObject()
{
return hidePanel ? "display: none" : "";
}
private void setHidePanel(boolean b)
{
hidePanel = b;
}
}
@Override
protected void onAfterRender()
{
displayModel.setHidePanel(false);
super.onAfterRender();
}
-Doug
John Krasnay wrote:
>
> On Mon, Apr 21, 2008 at 07:18:57AM -0700, Doug Donohoe wrote:
>>
>> So I added an attribute modifier to the loginPanel:
>>
>> new AttributeModifier("style", true, new Model("display: none")
>>
>> This corrected the 'flash' problem. But introduced another problem.
>> Now,
>> when the form is submitted with an error, when the page is redisplayed,
>> the
>> form is hidden (because the attribute modifier is still in effect).
>>
>
> One of the great things about models is that they facilitate lazy
> evaluation. Try this:
>
> new AttributeModifier("style", true, new AbstractReadOnlyModel() {
> public Object getObject() {
> return hidePanel ? "display: none" : "";
> }
> });
>
> You can then toggle whether "display:none" is rendered by toggling the
> hidePanel field of your class.
>
> jk
>
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