I implemented the ESC key feature in a banking application used by thouthands
of users.
I use XkinsForms (xkisn.sourceforge.net) that have a buttonTag that lets
you to generate the needed javascript to handle this feature:
<forms:execute key="button.cancel" executeParameter="stepBack" cancel="true"/>
This tag generates a javascript simmilar as the following:
<script>
function doSubmit() {
//submition code
}
function doCancel() {
//Cancel code
}
function processKeypressesDefault(e) {
var whichASCDef = (document.all?e.keyCode:e.which);
if (whichASCDef==13) {//enter
doSubmit();
return false;
}
return true;
}
function processKeypressesCancel(e) {
var whichASCCan = (document.all?e.keyCode:e.which);
if (whichASCCan==27) {//escape
doCancel();
return false;
}
return true;
}
function processKeypresses(e) {
if(processKeypressesDefault(e))
processKeypressesCancel(e);
}
}
if (document.captureEvents) {
document.captureEvents(Event.KEYPRESS);
document.onkeypress = processKeypresses;
}
if(document.all)
document.attachEvent('onkeypress', processKeypresses);
</script>
You could extend Struts buttonTag and add this feature to your pages.
Cheers.
Guillermo.
________________________________________
FiberTel, el nombre de la banda ancha http://www.fibertel.com.ar
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