Thanks a lot guys. It works!
(... even if I think the solution is rather complicated for a simple
need... It would be great if a future release of Tapestry offered a way
to call some Javascript just before an Ajax request!)
Joost Schouten (ml) a écrit :
An easier solution would be to like Thiago sugested. Here's my code that
does the trick.
Cheers,
Joost
.js file:
AjaxProgressTracker = {
init: function() {
Ajax.Responders.register({
onCreate: function() {
// ajax request is sent
AjaxProgressTracker.ajaxCalled();
},
onComplete: function() {
// ajax response is back.
AjaxProgressTracker.ajaxEnded();
}
});
},
ajaxCalled : function () {
$$('body')[0].addClassName('ajaxInProgress');
},
ajaxEnded : function () {
$$('body')[0].removeClassName('ajaxInProgress');
}
}
LayoutComponent.java
@SetupRender
private void setup() {
renderSupport.addScript("AjaxProgressTracker.init();");
}
tml:
<div id="ajaxLoadingIndicator">
loading
</div>
css:
#ajaxLoadingIndicator{
position: absolute;
z-index: 101;
width: 5em;
height: 1.6em;
position: fixed;
left: 50%;
margin-left: -2.5em;
top: 2em;
padding: 0.3em 0.3em 0.3em 2.5em;
display: none;
}
.ajaxInProgress #ajaxLoadingIndicator {
display: block;
}
Baptiste Autin - Linkeo RD wrote:
Hello,
I have a BeanEditForm that updates a Zone through the "zone" attribute.
It works fine.
Now, I would like to display a kind of loading icon (or invoke a
Javascript method) just *before* the Ajax request, but I could find
any solution.
I could not make ProgressiveDisplay work in such a situation (since
the page is already fully loaded when the form is submitted)
And the "show"/"update" functions of the Zone component, which could
have been a workaround, are triggered only after the HTTP response.
Any idea ?
Baptiste
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Baptiste Autin
Ingénieur de développement
LINKEO
http://www.linkeo.com/
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