Wire Event Listeners"
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{{ZKDevelopersReferencePageHeader}} | {{ZKDevelopersReferencePageHeader}} | ||
| + | {{Deprecated | url=[http://books.zkoss.org/zk-mvvm-book/8.0/advanced/wire_event_listeners.html zk-mvvm-book/8.0/data_binding/advanced/wire_event_listeners]|}} | ||
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| − | To wire event listeners in a ViewModel like [[ZK Developer's Reference/MVC/Controller/Wire Event Listeners]], we have to call < | + | To wire event listeners in a ViewModel like [[ZK Developer's Reference/MVC/Controller/Wire Event Listeners]], we have to call <code>Selectors.wireEventListeners()</code> in a method with <code>@AfterCompose</code>. We then can use <code>@Listen</code> to declare a method as an event listener. '''We do not recommend this usage''' because it loses <b>ViewModel</b> an important advantage: loose coupling with View. '''Please evaluate the trade-offs before using it.''' |
''' Wire event listener in a ViewModel ''' | ''' Wire event listener in a ViewModel ''' | ||
| − | <source lang="java" | + | <source lang="java" highlight="4,5,8"> |
public class SearchAutowireVM{ | public class SearchAutowireVM{ | ||
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</source> | </source> | ||
| − | * < | + | * <code>Selectors.wireEventListeners()</code> 's first parameters is Root View Component which can be retrieved by <code>@ContextParam</code>. |
=Version History= | =Version History= | ||
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| − | {| | + | {| class='wikitable' | width="100%" |
! Version !! Date !! Content | ! Version !! Date !! Content | ||
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Latest revision as of 07:35, 8 July 2022
This article is out of date, please refer to zk-mvvm-book/8.0/data_binding/advanced/wire_event_listeners for more up to date information.
since 6.0.2
To wire event listeners in a ViewModel like ZK Developer's Reference/MVC/Controller/Wire Event Listeners, we have to call Selectors.wireEventListeners() in a method with @AfterCompose. We then can use @Listen to declare a method as an event listener. We do not recommend this usage because it loses ViewModel an important advantage: loose coupling with View. Please evaluate the trade-offs before using it.
Wire event listener in a ViewModel
public class SearchAutowireVM{
@AfterCompose
public void afterCompose(@ContextParam(ContextType.VIEW) Component view){
Selectors.wireEventListeners(view, this);
}
@Listen("onClick=#mybutton")
public void submit(MouseEvent event){
//handle events
}
}
Selectors.wireEventListeners()'s first parameters is Root View Component which can be retrieved by@ContextParam.
Version History
| Version | Date | Content |
|---|---|---|
| 6.0.0 | May 2012 | Supplement |
| 6.0.2 | July 2012 | The @AfterCompose was introduced. |