Actually, that's what I initially tried, but it didn't work. If you use the
simple example below, you'll see that. None of the components with
isEnabled() overridden to return true are enabled. I am using wicket
1.4-rc4. In looking at the source code, it looks like if I were able to
override isEnabledInHierarchy to return true it would work.
Java code:
package test.web.page;
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.model.CompoundPropertyModel;
@SuppressWarnings( {
"unused", "serial"
})
public class DemoPage extends WebPage {
private String firstName = "Steve";
private String lastName = "Lowery";
public DemoPage(PageParameters parameters) {
super(parameters);
Form<DemoPage> form = new Form<DemoPage>("form", new
CompoundPropertyModel<DemoPage>(this));
add(form.setEnabled(false));
form.add(new TextField<String>("firstName"));
form.add(new TextField<String>("lastName") {
@Override
public boolean isEnabled() {
return true;
}
});
form.add(new Link("regular") {
@Override
public void onClick() {
System.out.println("do something");
}
});
form.add(new Link("enabled") {
@Override
public void onClick() {
System.out.println("i want this link always
enabled, regardless of what
its hierarch looks like");
}
@Override
public boolean isEnabled() {
return true;
}
});
}
}
Html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd";>
<html xmlns:wicket="http://wicket.apache.org/";>
<head>
<title>Demo</title>
</head>
<body>
<form wicket:id="form">
<table>
<tbody>
<tr>
<td>[first name]</td>
<td><input type="text"
wicket:id="firstName"/></td>
</tr>
<tr>
<td>[last name]</td>
<td><input type="text"
wicket:id="lastName"/></td>
</tr>
<tr>
<td> </td>
<td> [reg link] </td>
</tr>
<tr>
<td> </td>
<td> [enabled link] </td>
</tr>
</tbody>
</table>
</form>
</body>
</html>
MartinM wrote:
>
> Yes, you could do it another way. Make each component that you want to
> enable/disable like this:
> form.add(new xxxFormComponent("id") {
> @Override
> isEnabled() {
> return your logic here;
> }
> });
>
> 2009/7/17 Steve Lowery <[email protected]>:
>> I would like to build a simple form whose markup looks like the
>> following:
>>
>>
>>
>> <wicket:panel>
>>
>> <form wicket:id="form">
>>
>> <table>
>>
>> <thead>
>>
>> <tr>
>>
>> <th>[Label]</th>
>>
>> <th> wicket:id="editLink">[edit] </th>
>>
>> </tr>
>>
>> </thead>
>>
>> <tbody>
>>
>> <tr>
>>
>> <td>[attr1]</td>
>>
>> <td><input type="text"
>> wicket:id="attr1"/></td>
>>
>> </tr>
>>
>> <tr>
>>
>> <td>[attr2]</td>
>>
>> <td><input type="text"
>> wicket:id="longitude"/></td>
>>
>> </tr>
>>
>> </tbody>
>>
>> <tfoot>
>>
>> <tr>
>>
>> <td colspan="2">
>>
>> <button
>> wicket:id="submit">[submit]</button>
>>
>> <button
>> wicket:id="cancel">[cancel]</button>
>>
>> </td>
>>
>> </tr>
>>
>> </tfoot>
>>
>> </table>
>>
>> </form>
>>
>> </wicket:panel>
>>
>>
>>
>> I call setEnabled(false) on the Form when it is constructed which makes
>> its FormComponents disabled making a "read only" version of the form.
>> I'd then like the editLink.onClick() to enable the form, which will
>> enable it's components. However, since the editLink is a child of the
>> Form which is initially disabled, that link is disabled. I am looking
>> for a way to not have the link be disabled eventhough the form it is in
>> is disabled. My thought was for that link, I could override
>> isEnabledInHierarchy() to just negate the value returned by super (if
>> the form is disabled the link is enabled and vice versa), but that
>> method is final, so no can do.
>>
>>
>>
>> Is anyone aware of another way I could go about doing this? I know I
>> could create a wicket component on say the tbody element and have it be
>> disabled, but then the link would have to be passed which element(s) it
>> needs to enable when clicked and I was hoping to just be able to use the
>> hierarchy so I can make the EditLink a reusable component since this is
>> a very common use case for us (having read only forms that become
>> editable with a click).
>>
>>
>>
>> Thanks in advance!
>>
>> Steve
>>
>>
>
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