[ http://issues.apache.org/jira/browse/TAPESTRY-840?page=all ]
Jesse Kuhnert resolved TAPESTRY-840.
------------------------------------
Fix Version/s: 4.1
Resolution: Fixed
Client side script bindings completely replaced by more robust dojo toolkit.
> Using Submit component as a cancel button causes listener to be called twice
> in Internet Explorer 6
> ---------------------------------------------------------------------------------------------------
>
> Key: TAPESTRY-840
> URL: http://issues.apache.org/jira/browse/TAPESTRY-840
> Project: Tapestry
> Issue Type: Sub-task
> Components: Framework
> Affects Versions: 4.0
> Environment: Tapestry 4.0 final
> Internet Explorer 6
> Reporter: Ben Dotte
> Fix For: 4.1
>
>
> The recommended way to build a cancel button on a form is to use the Submit
> component with javascript like
> onclick="javascript:this.form.events.cancel();". In Internet Explorer 6, this
> causes the cancel listener to get called twice and occasionally the two calls
> crash into each other and cause an exception. This problem does not exist
> with Firefox 1.5. Here is a simple example that demonstrates the behavior:
> <form jwcid="@Form" cancel="listener:cancel">
> <submit jwcid="@Submit" value="Cancel"
> onclick="javascript:this.form.events.cancel();"/>
> </form>
> public void cancel(IRequestCycle cycle)
> {
> System.out.println("cancel called");
> }
> Output after clicking the cancel button in IE 6:
> cancel called
> cancel called
> (and sometimes an exception and stack trace)
> The workaround is to use the Button component instead with the same
> javascript call. "cancel called" is only printed once in that case for
> Firefox and Internet Explorer and there are no exceptions.
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