You could use the PageRenderSupport Environmental annotation to set a
JavaScript variable in your page class that is the evaluated by the
embedded component JavaScript.
MyPageComponent.java:
@Environmental
private PageRenderSupport pageRenderSupport;
@BeginRender
void beginRender() {
pageRenderSupport.addScript("var myPageCondition = " +
isMyCondition() + ";");
}
Private boolean isMyCondition() {
return myConditionLogic();
}
However seems a little weird that you would want to conditionally set
the logic on a JavaScript function, seems like you would want to
conditionally call the function instead.
Adam
-----Original Message-----
From: Martin Dietze [mailto:[EMAIL PROTECTED] On Behalf Of Martin
Dietze
Sent: Wednesday, June 27, 2007 1:09 AM
To: users@tapestry.apache.org
Subject: T5: Conditional JavaScript code
Hi,
I would like to add inline JavaScript code to a form depending
on conditions set within the page class. I thus wrote code like
this:
| <script type="text/javascript">
| function myFunc() {
| <t:if test="prop:myCondition">
| for (var i = 0; i < someConstant; i++) {
| doSomethin();
| }
| </t:if>
| }
| </script>
This code causes problems since obviously Tapestry expects
well-formed HTML code here (note the '<' character). I also run
into problems if I put the inline JavaScript into HTML
comments, the code gets completely ignored then.
Since after each submit of the form the condition in the <t:if>
changes I don't really see any alternative to this construct,
or is there any fix/better way to do this?
Cheers,
Martin
--
----------- / http://herbert.the-little-red-haired-girl.org /
-------------
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Yoda of Borg I am. Assimilated you will be.
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