Class RenderNotification
java.lang.Object
org.apache.tapestry5.corelib.mixins.RenderNotification
This mixin triggers component event notifications when the
attached component enters its
BeginRender and AfterRender
render phases. A common use of this is to handle the "afterRender"
event to generate client-side JavaScript for content just rendered via a
Block (this is a common Ajax use case related to partial page
rendering). Since AJAX requests don't trigger afterRender or beforeRender
render phase events in the containing component or page, this mixin provides
a way of accessing those events as component events.
An example using the Any
component within a zone:
<div t:type="Zone" id="myZone">
<t:any t:mixins="RenderNotification">
<!-- zone content ->
</div>
</div>
The MarkupWriter is passed as the event context to your event handler
method(s), so your corresponding component or page class might look like:
void onBeginRenderFromMyZone(MarkupWriter writer)
{
writer.element("p");
writer.write("before item render");
writer.end();
}
void onAfterRenderFromMyZone(MarkupWriter writer)
{
writer.element("p");
writer.write("after item render");
writer.end();
}
As an alternative, see the Trigger
component, which does something similar but as a component rather than a mixin.- Since:
- 5.2.0
| Name | Description |
|---|---|
| afterRender | |
| beginRender |
-
Constructor Summary
Constructors -
Method Summary
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Constructor Details
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RenderNotification
public RenderNotification()
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