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 |
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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RenderNotification
public RenderNotification()
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