HeadForceTagIdHandler (Wicket Core 9.0.0-M1 API)

java.lang.Object
- org.apache.wicket.markup.parser.AbstractMarkupFilter
- - org.apache.wicket.markup.parser.filter.HeadForceTagIdHandler

All Implemented Interfaces:

IMarkupFilter
```
public class HeadForceTagIdHandler
extends AbstractMarkupFilter
```
Handler that sets unique tag id for every inline script and style element in <wicket:head>, unless the element already has one.
This is needed to be able to detect multiple ajax header contribution. Tags that are not inline (stript with src attribute set and link with href attribute set) do not require id, because the detection is done by comparing URLs.
Tags with wicket:id are not processed. To setOutputWicketId(true) on attached component is developer's responsibility. FIXME: Really? And if so, document properly

Author:

Matej Knopp

- Field Summary
  - Fields inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter
    REQUEST_COUNTER_KEY
- Constructor Summary
  
  Constructors
  Constructor Description
  
  HeadForceTagIdHandler(java.lang.Class<?> markupFileClass)
  Construct.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  protected MarkupElement onComponentTag(ComponentTag tag)
  Invoked when a ComponentTag was found.
  - Methods inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter
    getMarkupResourceStream, getNextFilter, getRequestUniqueId, getWicketNamespace, getWicketNamespace, nextElement, onSpecialTag, postProcess, setNextFilter
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - HeadForceTagIdHandler
```
public HeadForceTagIdHandler(java.lang.Class<?> markupFileClass)
```
    Construct.
    
    Parameters:
    
    markupFileClass - Used to generated the a common prefix for the id
- Method Detail
  - onComponentTag
```
protected final MarkupElement onComponentTag(ComponentTag tag)
                                      throws java.text.ParseException
```
    Description copied from class: AbstractMarkupFilter
    
    Invoked when a ComponentTag was found.
    By default this method is also called for WicketTags.
    
    Specified by:
    
    onComponentTag in class AbstractMarkupFilter
    
    Returns:
    
    Usually the same as the tag attribute
    
    Throws:
    
    java.text.ParseException