AbstractAjaxTimerBehavior adds header-contribution to every ajax response
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Key: WICKET-1405
URL: https://issues.apache.org/jira/browse/WICKET-1405
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.3.1
Reporter: Jani Väisänen
The method renderHead in AbstractAjaxTimerBehavior calls super.renderHead
(AbstractDefaultAjaxBehavior), which adds lines:
- response.renderJavascriptReference(WicketEventReference.INSTANCE);
- response.renderJavascriptReference(WicketAjaxReference.INSTANCE);
to every response.
This behavior causes at least usability problems in IE6.
Selected components lose focus on every update even if it is not updated.
If the page have a list which is updated on every second and a dropdown which
isn't updated at all, user has to do his selection from the dropdown within
that update interval. The dropdown list is closed on every update in IE6. This
problem doesn't occur with wicket 1.2.6.
Sample code: https://download.syncrontech.com/public/update_problem_ie6.zip
Ajax debug:
INFO: Received ajax response (1181 characters)
INFO:
<?xml version="1.0" encoding="UTF-8"?><ajax-response><header-contribution
encoding="wicket1" ><![CDATA[<head
xmlns:wicket="http://wicket.apache.org";><script type="text/javascript"
src="resources/org.apache.wicket.markup.html.WicketEventReference/wicket-event.js"></script>
<script type="text/javascript"
src="resources/org.apache.wicket.ajax.WicketAjaxReference/wicket-ajax.js"></script>
<script type="text/javascript"
src="resources/org.apache.wicket.ajax.AbstractDefaultAjaxBehavior/wicket-ajax-debug.js"></script>
<script type="text/javascript"
id="wicket-ajax-debug-enable"><!--/*--><![CDATA[/*><!--*/
wicketAjaxDebugEnable=true;
/*-->]^]^>*/</script>
</head>]]></header-contribution><component id="test1" ><![CDATA[<span
id="test1">
<span>
<span>first</span><br/>
</span><span>
<span>second</span><br/>
</span>
</span>]]></component><evaluate><![CDATA[setTimeout("var
wcall=wicketAjaxGet('?wicket:interface=:0:form:test::IActivePageBehaviorListener:0:-1&wicket:ignoreIfNotActive=true',null,null,
function() {var c = Wicket.$('test1'); return typeof(c) != 'undefined' && c !=
null}.bind(this));", 3000);]]></evaluate></ajax-response>
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