java.lang.Object
org.apache.wicket.protocol.http.AjaxEnclosureListener
- All Implemented Interfaces:
AjaxRequestTarget.IListener
This listener adds Enclosures to AjaxTarget, where the child controller of the said Enclosure is
already added. This is a part of the fix to the problem:
"Changing the visibility of a child component in Ajax callback method will not affect the entire
enclosure but just the child component itself. This is because only the child component is added
to the AjaxRequestTarget"
When used with an "Inline" Enclosure, this problem is fixed.
Syntax for inline enclosure:
<tr wicket:enclosure="controllingChildId">
In this example the tag used is tr, but any other tag could be used as well. The attribute
"wicket:enclosure" is mandatory, and is used to recognise an inline enclosure. The value of the
attribute, here "controllingChildId" can contain an id for the child (controller) element. If the
said value is not given, the first element inside the enclosure will be used as a controller
child. If there are no elements inside the enclosure, the parsing will fail.
- Author:
- Joonas Hamalainen
- See Also:
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic boolean
isControllerOfEnclosure
(Component component, Enclosure enclosure) Check if a given component is the controlling child of a given enclosurevoid
onBeforeRespond
(Map<String, Component> map, AjaxRequestTarget target) Try to find Enclosures that have their controllers added already, and add them to the target.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.wicket.ajax.AjaxRequestTarget.IListener
onAfterRespond, updateAjaxAttributes
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Constructor Details
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AjaxEnclosureListener
public AjaxEnclosureListener()Construct.
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Method Details
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onBeforeRespond
Try to find Enclosures that have their controllers added already, and add them to the target.- Specified by:
onBeforeRespond
in interfaceAjaxRequestTarget.IListener
- Parameters:
map
- modifiable map (markupId -> component) of components already added to the targettarget
- the target itself. Could be used to add components or to append/prepend JavaScript
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isControllerOfEnclosure
Check if a given component is the controlling child of a given enclosure- Parameters:
component
-enclosure
-- Returns:
- true if the given component is the controlling child of the given InlineEnclosure
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