hiding a bit of markup

[Garret Wilson <ga...@globalmentor.com>]

All,

I have a little list in HTML:

    <ul>
       <li>foo</li>
       <li>bar</li>
    </ul>


There are some <wicket:message> tags, but no components on the page. I 
want only to show the "foo" list item if the flag variable is set to 
true. What's the easiest way to do this in Wicket?

I've read the documentation on controlling HTML 
<http://wicket.apache.org/guide/guide/keepControl.html>. It seems I can 
use a WebMarkupContainer, but only if I add some extra HTML. Obviously I 
don't want this:

    <ul>
       <div wicket:id="foo"><li>foo</li></div>
       <li>bar</li>
    </ul>


It seems I can also use a Fragment (which presumably wouldn't require 
the extra HTML because it would use <wicket:fragment>, but the 
constructor for that component requires that I specify the Wicket ID of 
the "container", which doesn't exist.

How can I simply reference some piece of HTML so that I can show or hide 
it based on some flag?

Garret

Re: hiding a bit of markup

[Adam Hammer <ad...@gmail.com>]

Hi garret

In onconfigure of your panel, Setvisibility of foo based on flag there.
Every time page loads or Ajax includes panel it'll handle the visibility.

Adam
On Nov 7, 2014 8:33 AM, "Garret Wilson" <ga...@globalmentor.com> wrote:

> All,
>
> I have a little list in HTML:
>
>    <ul>
>       <li>foo</li>
>       <li>bar</li>
>    </ul>
>
>
> There are some <wicket:message> tags, but no components on the page. I
> want only to show the "foo" list item if the flag variable is set to true.
> What's the easiest way to do this in Wicket?
>
> I've read the documentation on controlling HTML <http://wicket.apache.org/
> guide/guide/keepControl.html>. It seems I can use a WebMarkupContainer,
> but only if I add some extra HTML. Obviously I don't want this:
>
>    <ul>
>       <div wicket:id="foo"><li>foo</li></div>
>       <li>bar</li>
>    </ul>
>
>
> It seems I can also use a Fragment (which presumably wouldn't require the
> extra HTML because it would use <wicket:fragment>, but the constructor for
> that component requires that I specify the Wicket ID of the "container",
> which doesn't exist.
>
> How can I simply reference some piece of HTML so that I can show or hide
> it based on some flag?
>
> Garret
>

Re: hiding a bit of markup

[Garret Wilson <ga...@globalmentor.com>]

Haha! OK, this was simple---my brain apparently hasn't got started yet.

I can use a WebMarkup container, and I don't have to add any HTML---I 
can add the wicket:id on the <li> itself:

    <ul>
       <li wicket:id="flagItem">foo</li>
       <li>bar</li>
    </ul>


Duh! The code looks like this:

    add(new WebMarkupContainer("flagItem") {
       @Override
       public boolean isVisible() {
         return flag;
       }
    });


Happy Friday!

Garret

P.S. Thanks to the Wicket SourceForge FAQ 
<http://wicket.sourceforge.net/faqs.html#how-hide-markup>, even though a 
bit old, for giving my mind a kick.


On 11/7/2014 10:32 AM, Garret Wilson wrote:
> All,
>
> I have a little list in HTML:
>
>    <ul>
>       <li>foo</li>
>       <li>bar</li>
>    </ul>
>
>
> There are some <wicket:message> tags, but no components on the page. I 
> want only to show the "foo" list item if the flag variable is set to 
> true. What's the easiest way to do this in Wicket?
>
> I've read the documentation on controlling HTML 
> <http://wicket.apache.org/guide/guide/keepControl.html>. It seems I 
> can use a WebMarkupContainer, but only if I add some extra HTML. 
> Obviously I don't want this:
>
>    <ul>
>       <div wicket:id="foo"><li>foo</li></div>
>       <li>bar</li>
>    </ul>
>
>
> It seems I can also use a Fragment (which presumably wouldn't require 
> the extra HTML because it would use <wicket:fragment>, but the 
> constructor for that component requires that I specify the Wicket ID 
> of the "container", which doesn't exist.
>
> How can I simply reference some piece of HTML so that I can show or 
> hide it based on some flag?
>
> Garret
>

Re: hiding a bit of markup

[Patrick Davids <pa...@nubologic.com>]

Hi Garret,
did you try this?

<ul>
   <li wicket:id="foo">foo</li>
   <li>bar</li>
</ul>

Everything can be a WebMarkupContainer. No need to always use <div>s or 
<span>s.

have a nice weekend
Patrick

Am 07.11.2014 17:32, schrieb Garret Wilson:
> All,
>
> I have a little list in HTML:
>
>     <ul>
>        <li>foo</li>
>        <li>bar</li>
>     </ul>
>
>
> There are some <wicket:message> tags, but no components on the page. I
> want only to show the "foo" list item if the flag variable is set to
> true. What's the easiest way to do this in Wicket?
>
> I've read the documentation on controlling HTML
> <http://wicket.apache.org/guide/guide/keepControl.html>. It seems I can
> use a WebMarkupContainer, but only if I add some extra HTML. Obviously I
> don't want this:
>
>     <ul>
>        <div wicket:id="foo"><li>foo</li></div>
>        <li>bar</li>
>     </ul>
>
>
> It seems I can also use a Fragment (which presumably wouldn't require
> the extra HTML because it would use <wicket:fragment>, but the
> constructor for that component requires that I specify the Wicket ID of
> the "container", which doesn't exist.
>
> How can I simply reference some piece of HTML so that I can show or hide
> it based on some flag?
>
> Garret
>