Why does submitType="cancel" kill its listener?
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Key: TAPESTRY-1673
URL: https://issues.apache.org/jira/browse/TAPESTRY-1673
Project: Tapestry
Issue Type: Bug
Components: Core Components
Affects Versions: 4.1.2
Environment: Tap 4.1.2, Firefox 2.0.0.5 or IE 7 on Win XP SP2, Safari
2.0.4 or Firefox 2.0.0.5 on OS X 10.4.10, served by Tomcat in JBoss 4.2.1.
Reporter: Geoff Callender
Is there a reason why submitType kills its component's listener? For example,
whereas this listener works...
<input jwcid="@Submit" type="submit" value="Cancel"
action="listener:doCancel">
... the listener in this one is ignored...
<input jwcid="@Submit" type="submit" value="Cancel"
action="listener:doCancel" submitType="cancel"/>
...and the listener has to be specified on the Form instead...
<form jwcid="@Form" cancel="listener:doCancel">
Why is this so? What if I want more than one button of type cancel, each one
with its own listener, and possibly its own parameters? I think
submitType="refresh" behaves this way, too.
Here's a working example:
package sandpit;
import org.apache.tapestry.html.BasePage;
public abstract class CancelPage extends BasePage {
public abstract void setMessage1(String value);
public abstract void setMessage2(String value);
public void doComponentListener() {
setMessage1("doComponentListener() invoked.");
}
public void doFormListener() {
setMessage2("doFormListener() invoked.");
}
}
<html jwcid="@Shell" title="">
<body jwcid="@Body">
<h2>Demonstration of how submitType="cancel" kills the component's
listener</h2>
<form jwcid="@Form">
<fieldset>
<legend>This form does NOT specify a cancel
listener</legend>
Whereas this listener works...<br/>
<input jwcid="@Submit" type="submit" value="Submit"
action="listener:doComponentListener"/> GOOD<br/>
<code><input jwcid="@Submit" type="submit"
value="Submit" action="listener:doComponentListener"/></code><br/><br/>
... the listener in this one is ignored, which is
bad...<br/>
<input jwcid="@Submit" type="submit" value="Cancel"
submitType="cancel" action="listener:doComponentListener"/> BAD<br/>
<code><input jwcid="@Submit" type="submit"
value="Cancel" submitType="cancel"
action="listener:doComponentListener"/></code><br/><br/>
</fieldset>
</form>
<form jwcid="@Form" cancel="listener:doFormListener">
<fieldset>
<legend>This form specifies
cancel="listener:doFormListener"</legend>
Whereas this listener works...<br/>
<input jwcid="@Submit" type="submit" value="Submit"
action="listener:doComponentListener"/> GOOD<br/>
<code><input jwcid="@Submit" type="submit"
value="Submit" action="listener:doComponentListener"/></code><br/><br/>
... the listener in this one is ignored, and the form's
listener takes over, which is questionable...<br/>
<input jwcid="@Submit" type="submit" value="Cancel"
submitType="cancel" action="listener:doComponentListener" /> QUESTIONABLE<br/>
<code><input jwcid="@Submit" type="submit"
value="Cancel" submitType="cancel"
action="listener:doComponentListener"/></code><br/><br/>
...but in this case the form's listener works...
<br/>
<input jwcid="@Submit" type="submit" value="Cancel"
submitType="cancel"/> GOOD<br/>
<code><input jwcid="@Submit" type="submit"
value="Cancel" submitType="cancel"/></code><br/><br/>
</fieldset>
</form>
Message1: <span style="color: red;"><span jwcid="@Insert"
value="ognl:message1">Message</span></span><br/>
Message2: <span style="color: blue;"><span jwcid="@Insert"
value="ognl:message2">Message</span></span>
</body>
</html>
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