Paul, thanks. Looks like I'm just two steps from final. My current code in 
MyPanel (stupid,
at the moment just for test):
@Override
public void onRender()
{
    MarkupStream markupStream = this.getAssociatedMarkupStream(false);
    while(markupStream.hasMore())
    {
        String myString = markupStream.next().toString(); //after last html 
element I get null
                                                          //pointer exception 
but markupStream.hasMore()
                                                          //indicate that there 
is more elements
        myString = myString.replaceAll("menuso", "someelse");
        System.out.println(myString);
    }
}

two more questions:
1. markupStream.hasMore() is going over MyPanel markup, when go over all markup
   it's going beyond border and after last html tag I get null pointer exception
   on markupStream.next()
2. how to write modified markup back to markupStream? Have found this:
   Response response = this.getResponse(); //in MyPanel - MyPanel is Component 
(extends Panel)
   response.write(CharSequence); //is this right way to write modified stream 
back to response?

will test same with onComponentTag(ComponentTag component), based on this:
http://stackoverflow.com/questions/4609871/wicket-getting-body-of-markup-element
now know hot to get markupStream (2 days ago my big problem).

sorry for my stupid questions, i'm still n00b ...



On 12.2.2013 18:07, Paul Bors wrote:
You can also do it inside the onComponentTag() or onComponentTagBody():

http://wicket.apache.org/apidocs/1.5/org/apache/wicket/Component.html#onComponentTag(org.apache.wicket.markup.ComponentTag
)
http://wicket.apache.org/apidocs/1.5/org/apache/wicket/Component.html#onComponentTagBody(org.apache.wicket.markup.MarkupStream,
org.apache.wicket.markup.ComponentTag)

This is how I switched from a <DIV> to a <SPAN> when nesting forms since
Wicket uses <DIV> that sometimes breaks my CSS inheritance:

/**
  * Wicket by default will substitute inner nested forms with DIV elements,
we want SPAN
  * elements to preserve the page layout.
  *
  * @see org.apache.wicket.Component#onComponentTag(ComponentTag)
  */
@Override
protected void onComponentTag(final ComponentTag tag) {
   super.onComponentTag(tag);
   if(!isRootForm()) {
     tag.setName("span");
   }
}

~ Thank you,
    Paul Bors
On Tue, Feb 12, 2013 at 7:55 AM, Michael Jaruska
<michael.jaru...@gmail.com>wrote:

do you mean in beforeRender(final Component component)?




On 12.2.2013 9:11, Martin Grigorov wrote:

Hi,

As Sven suggested - BorderBehavior does exactly this.


On Tue, Feb 12, 2013 at 9:08 AM, Michael Jaruska
<michael.jaru...@gmail.com>**wrote:

  no way how to modify raw html stream in actual rendering?



On 11.2.2013 11:50, Michael Jaruska wrote:

  based on this article:
https://cwiki.apache.org/****WICKET/component-rendering.****html<https://cwiki.apache.org/**WICKET/component-rendering.**html>
<https://cwiki.apache.org/**WICKET/component-rendering.**html<https://cwiki.apache.org/WICKET/component-rendering.html>>in
section onRender()
it should be possible to modify markup which is going from wicket (e.g.
from .html file)
and modyfied it send to client.


On 11.2.2013 11:34, Michael Jaruska wrote:

  yes, i need that raw html that comes from markup (my .html file which
is
my panel),
in java code i will modify it (one step for put new class) and send it
to client :-)
as i thnik now i dont need to delete previous step because this
modifying isn't in
markup. so i just need to modify markup in actual render - modify
markup
stream.


On 11.2.2013 11:26, Martin Grigorov wrote:

  MarkupStream gives you the raw html that comes from the .html file,
i.e.
from the template file.
It doesn't give you the html from the previous page render.

You need to send Ajax requests to update the server side state to be
in
sync with the client side state (modified by your JS).

On Mon, Feb 11, 2013 at 11:22 AM, Michael Jaruska <
michael.jaru...@gmail.com

  wrote:


   in fact, my panel is menu which is modified by javascript.

i need to keep track of the previous selected entry (to get know
javascript to disable element) and actual element to modify
(add class) for javascript.

javascript need to now at a moment "page rendered" where is
class which it is looking for.

so i need to modify html markup, modify it on client side by
javascript is not possible.

based on this article:
https://cwiki.apache.org/******WICKET/component-rendering.******html<https://cwiki.apache.org/****WICKET/component-rendering.****html>
<https://cwiki.apache.**org/**WICKET/component-**rendering.**html<https://cwiki.apache.org/**WICKET/component-rendering.**html>

<https://cwiki.apache.org/****WICKET/component-rendering.****html<https://cwiki.apache.org/**WICKET/component-rendering.**html>
<https://cwiki.apache.org/**WICKET/component-rendering.**html<https://cwiki.apache.org/WICKET/component-rendering.html>



  it should be possible modify markup generated by component (my
panel).




On 11.2.2013 10:03, Martin Grigorov wrote:

   Hi,


What do you want to do with the markup ?
Maybe you don't need to bother with internals like MarkupStream for
something that may be solved much easier.


On Mon, Feb 11, 2013 at 10:01 AM, Michael Jaruska <
michael.jaru...@gmail.com

   wrote:



     thanks, studied. but in my case not working. i don't know why,
where is

  my
mistake. try this code:

markup - base page:
<?xml version="1.0" encoding="UTF-8" ?>
<html xmlns:wicket>
        <head>
            <title>my test page</title>
            <meta http-equiv="Content-Type" content="text/html;
charset=utf-8"
/>
        </head>
        <body>
            <p>my test page</p>
            <span wicket:id="myPanel">[my test panel]</span>
        </body>
</html>

markup - my test panel:
<?xml version="1.0" encoding="UTF-8" ?>
<html xmlns:wicket>
<wicket:panel>
       <ul>
          <li>
            <a href="./mypage.html?cid=menu">********my item</a>

          </li>
       </ul>
</wicket:panel>

java - base page:
public class PageBase extends WebPage{
            public PageBase()
            {
                    //my panel
                    this.add(new MyMenu("myPanel").****
setRenderBodyOnly(true));

            }
}

java - panel:
ublic class MyMenu extends Panel{
            public PanelMenu(String id)
            {
                    super(id);
            }

            protected void onRender(MarkupStream markupStream){
                    while(markupStream.hasMore())
                    {
                            System.out.println(******
markupStream.next());

                    }
            }
}


i expect on console printed whole html markup for panel, but
nothing
is
displayed.

any ideas please?



On 10.2.2013 23:21, Sven Meier wrote:

    See BorderBehavior#beforeRender(********Component) on how to
iterate over

  the

markup.

Sven

On 02/10/2013 11:09 PM, Michael Jaruska wrote:

    my quick test:

  @Override
protected void onRender()
{
        super.onRender();
        System.out.println(this.********getMarkup().toString());

}

get me just top-level tag in my panel, subtags isn't shown. how
to
get
whole
markup for my panel?


On 10.2.2013 22:38, Sven Meier wrote:

    Sure, with #getMarkup() you can get hold of the component's
markup.

  With a MarkupStream you can iterate over it.

Sven

On 02/10/2013 10:23 PM, Michael Jaruska wrote:

    again with my question: is it possible to get markup in
onRender() of

  the component?
have found this article:
https://cwiki.apache.org/********WICKET/component-rendering.**
*****<https://cwiki.apache.org/******WICKET/component-rendering.*****>
*html<https://cwiki.apache.**org/****WICKET/component-**
rendering.****html<https://cwiki.apache.org/****WICKET/component-rendering.****html>

<https://cwiki.apache.**org/****WICKET/component-**
rendering.**html<https://**cwiki.apache.org/**WICKET/**
component-rendering.**html<https://cwiki.apache.org/**WICKET/component-rendering.**html>



  <https://cwiki.apache.org/******
WICKET/component-rendering.******<https://cwiki.apache.org/****WICKET/component-rendering.****>
html<https://cwiki.apache.org/****WICKET/component-rendering.*
***html<https://cwiki.apache.org/**WICKET/component-rendering.**html>

<https://cwiki.apache.org/****WICKET/component-rendering.****
html<https://cwiki.apache.org/**WICKET/component-rendering.**html>
<https://cwiki.apache.org/**WICKET/component-rendering.**html<https://cwiki.apache.org/WICKET/component-rendering.html>






  but in onRender() section is just code snippet I'm not
understand. is
there more
detailed example how to get markup of the component in
onRender()?

thanks, michael



On 23.1.2013 22:47, Martin Grigorov wrote:

    You can use IMarkupFilter to manipulate the raw markup
before
being

  loaded
and used by the components.
See the implementations in Wicket to see what can be done with
such
filter.


On Wed, Jan 23, 2013 at 11:11 PM, Michael Jaruska <
michael.jaru...@gmail.com

    wrote:



      Look at my original post. User clicks on <a


   href="./mypage.html?cid=menu/*

*submenu/subsubmenu2">**********subsubmenu2</a>, then

I have in String "category" (java code) value
"menu/submenu/subsubmenu2".
I need just to make 2 more steps:
1. in html code find anchor tag with href
"menu/submenu/subsubmenu2";
2. find <li> tag which is parent of the anchor from point 1;

When I have point 2 done, then I know how to put somethink
into
<li>
tag...




On 23.1.2013 21:21, Bas Gooren wrote:

     Ok, so you are indeed looking for a way to change a html
attribute

   ;-)


Since you wrote (in your folluw-up e-mail) that you cannot
generate
the
html, there are some ways, but they mostly work outside of
the
normal
wicket way.

1) In the component which actually renders your static html
override
onComponentTagBody and fiddle with the markup stream (e.g.
look at
replaceComponentTagBody)

2) store the static html somewhere by itself, and create a
custom
model.
The model can then load the html and perform string
replacement.
You can then add a label component which uses the model and
has
setEscapeModelStrings(false) set.

Met vriendelijke groet,
Kind regards,

Bas Gooren

Op 23-1-2013 21:11, schreef Michael Jaruska:

     I need to find the parent <li> tag of the anchor user
clicks - I

   now

from PageParameters which anchor
has been clicked. Then I will put into this parent <li>
specific
atribute (id="something"). This attribute
will be then processed by JavaScript on the page.


On 23.1.2013 21:04, Bas Gooren wrote:

     Sorry, I read too quickly.


  What are you trying to accomplish? Let's say you are able
to
find
the
appropriate html tag, what do you want to do with it?

Met vriendelijke groet,
Kind regards,

Bas Gooren

Op 23-1-2013 21:01, schreef Michael Jaruska:

     And question is not "how can I change html attribute"
but "how

   can I

go through html structure" and
find html tag with specific attribute :-)


On 23.1.2013 20:50, Bas Gooren wrote:

     Hi!


  What you want to accomplish (e.g. changing some html
attributes) can
be done by adding an attributemodifier to each <li>
component.

In pseudocode:

RepeatingView uls = ...
for_every_li:
WebMarkupContainer li = ...
uls.add(li);

now, you can do something like this:
li.add(new AttributeAppender(...) {
          isEnabled() {
              return true if you want to append a html
attribute;
          }
});

Or alternatively:

WebMarkupContainer li = new WMC() {
          onComponentTag(ComponentTag tag) {
              super(tag);

              tag.put("my-html-attribute", value);
          }
}

Met vriendelijke groet,
Kind regards,

Bas Gooren

Op 23-1-2013 20:45, schreef Michael Jaruska:

     Hi,


  is there a way I can find specific html tag in markup?

I have this html structure:
<ul class="mymenu">
       <li>
         <a href="./mypage.html?cid=menu">**
********menu</a>
       <ul>
         <li>
           <a href="./mypage.html?cid=menu/*********

*submenu">submenu</a>
         <ul>
           <li>
             <a href="./mypage.html?cid=menu/*********

*submenu/subsubmenu1">**
subsubmenu1</a>
           </li>
           <li>
             <a href="./mypage.html?cid=menu/*********

*submenu/subsubmenu2">**
subsubmenu2</a>
           </li>
           <li>
             <a href="./mypage.html?cid=menu/*********

*submenu/subsubmenu3">**
subsubmenu3</a>
           </li>
         </ul>
       </ul>
</ul>

I'm processing clicks on anchors with my page:
public PageTest(PageParameters parameters){
       //cid = category id
       String category = parameters.get("cid").******
toString();

       ...
}

Now I need some way I can add atribute into parent <li>
tag
of
<a>
tag on which I do click.
Somethink like (pseudocode):
public PageTest(PageParameters parameters){
       //cid = category id
       String category = parameters.get("cid").******
toString();
       //find corresponding <a> tag
       Tag anchorTag = go_from_top_ul_tag_and_find_a_**
**
******

tag_by_category(category)
       //have corresponding anchor tag, get parrent tag
of
the
anchor tag
       Tag anchorParentTag = anchorTag.getParent();
       //and now I can do my mysterious things with
menu...
}

But I don't know where to start my search and I totaly
don't
know
whot to look for in docu.

Please, help :-)

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