Duplicate listeners added for events in browser every time @EventListener is
fired.
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Key: TAPESTRY-1066
URL: http://issues.apache.org/jira/browse/TAPESTRY-1066
Project: Tapestry
Issue Type: Bug
Components: Framework
Affects Versions: 4.1.1
Environment: JBoss 4.0.4.GA, Firefox 1.5.0.6, Windows XP
Reporter: Ben Sommerville
The response from an @EventListener method seems to reregister for that event
on the browser. The effect of this is the first time you trigger the event one
ajax call is made, the second time two calls are made, the third time eight
calls are made, etc.
The testcase I submitted for [TAPESTRY-1054] shows this. Every time I change
the first select, the number of ajax calls doubles.
Each response includes something like
<response id="initializationscript" type="script"><script>
//<![CDATA[
tapestry.form.clearProfiles('loginRole');
tapestry.form.registerProfile('loginRole',{});
dojo.event.connect(dojo.byId("role"), "onchange", function(e){
var content={beventname:"onchange"};
tapestry.event.buildEventProperties(e, content);
if (!content["beventtarget.id"])
content["beventtarget.id"]="role";
var
validateState=tapestry.form.forms["loginRole"].validateForm;
var validateForm=false;
tapestry.form.setFormValidating("loginRole", validateForm);
tapestry.form.submitAsync("loginRole", content);
tapestry.form.setFormValidating("loginRole", validateState);
});
//]]>
</script></response>
I assume the "dojo.event.connect" call is the culprit, but I haven't had a
chance to dig into the code to work out why or where it is being added to the
response.
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