On 8/30/07, janders <[EMAIL PROTECTED]> wrote:
>
> I don't think I'm doing a good job communicating what I'm trying to do.
Or maybe it's me not doing a good job explaining what you should do :)
> The markup looks like this (note there is no attribute readonly for input
> field with id="label"):
>
> <select wicket:id="type">
> <option>home</option>
> <option>work</option>
> <option>other</option>
> </select>
> <input wicket:id="label" type="text" class="label" />
>
> What I want to do is dynamically set or remove the attribute readonly on the
> input field (label) depending on the dropdownchoice selection (type). If
> the user selects "home" or "work" I want the attribute readonly to be set.
> If the user selects "other" I want the attribute to be removed so that the
> user can edit label.
>
> The Java code looks like:
>
> final AttributeModifier rot = new AttributeModifier("readonly", true, new
> Model("readonly")); // true
>
> if (email.getType() != EmailAddress.Type.OTHER)
>
> emailLabel.add(rot); // <---- this works, by adding the readonly
> attribute
>
> item.add(emailLabel);
> item.add(new DropDownChoice("type", emailTypeList) {
> @Override
> protected boolean wantOnSelectionChangedNotifications() {
> return true;
> }
> @Override
> protected void onSelectionChanged(final Object newSelection) {
> if (newSelection == EmailAddress.Type.OTHER) {
>
> emailLabel.remove ??????? ; // <----- I can't figure out how
> to remove the attribute
>
> emailLabel.requestFocus();
> } else {
> emailLabel.setModelValue(newSelection.toString());
> emailLabel.add(rot);
> }
> }
> });
>
if (email.getType() != EmailAddress.Type.OTHER)
emailLabel.add(rot);
item.add(emailLabel);
item.add(new DropDownChoice("type", emailTypeList) {
@Override
protected boolean wantOnSelectionChangedNotifications() {
return true;
}
@Override
protected void onSelectionChanged(final Object newSelection) {
if (newSelection == EmailAddress.Type.OTHER) {
rot.setEnabled(false);
emailLabel.requestFocus();
} else {
emailLabel.setModelValue(newSelection.toString());
rot.setEnabled(false);
}
}
});
This code always adds the attribute modifier. However, it is disabled
when your use case happens.
> Because I have wantOnSelectionChangedNotifications() set to true, the user
> can select a choice and the label should change accordingly -- i.e., add
> attribute readonly or remove it for the selection of "other".
>
> So the problem that I'm having right now is how do I dynamically remove
> readonly (once added to the input field) when the user selects "other" from
> the dropdownchoice?
You don't need to remove it. Just turn it off/ on like the code
fragment above shows.
And for the finale, in Wicket 1.3 (I gather you are using 1.2), you
indeed can simply call remove(IBehavior) - attribute modifiers are
behaviors. So then emailLabel.remove(rot) should work fine.
Eelco
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