Provide the user with immediate feedback
Hey! In our wicket application we are using a lot of Ajax links/forms. Sometimes, those requests take a second or two. We now want to give the user some feedback, that his request is being processed (to avoid double clicking or the impression that the webapp is slow). What would be the best way to execute custom javascript methods BEFORE the request gets sent to the webapp? Those javascript methods would then show a progress bar, a message like Your request is being processed.. etc. For example: The user clicks an AjaxLink to delete an entry from the table and before the request gets sent to the server, some javascript method adds a small progress bar at the top of the table. Once the ajax request is done, the progress bar disappears. Another example would be how Facebook handles sending private messages. As soon as I click the send button, the text area gets disabled / greyed out immediately and after the Ajax request has gone through, I get access again to the text area. Cheers, Patrick - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Provide the user with immediate feedback
You can register an handler to show some message and another one to remove it at the end of request. See Wicket.Ajax.registerPreCallHandler / registerPostCallHandler and https://cwiki.apache.org/WICKET/generic-busy-indicator-for-both-ajax-and-non-ajax-submits.html https://cwiki.apache.org/WICKET/generic-busy-indicator-for-both-ajax-and-non-ajax-submits.html On Tue, Feb 1, 2011 at 9:39 AM, Patrick Petermair patrick.peterm...@openforce.com wrote: Hey! In our wicket application we are using a lot of Ajax links/forms. Sometimes, those requests take a second or two. We now want to give the user some feedback, that his request is being processed (to avoid double clicking or the impression that the webapp is slow). What would be the best way to execute custom javascript methods BEFORE the request gets sent to the webapp? Those javascript methods would then show a progress bar, a message like Your request is being processed.. etc. For example: The user clicks an AjaxLink to delete an entry from the table and before the request gets sent to the server, some javascript method adds a small progress bar at the top of the table. Once the ajax request is done, the progress bar disappears. Another example would be how Facebook handles sending private messages. As soon as I click the send button, the text area gets disabled / greyed out immediately and after the Ajax request has gone through, I get access again to the text area. Cheers, Patrick - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Pedro Henrique Oliveira dos Santos
Re: Provide the user with immediate feedback
Patrick, I think you can: 1-use interface IAjaxIndicatorAware to mark a page or Panel as a context for showing some indicator of AJAX activity (usually a veil + some activity icon) 2- or you can use IAjaxCallDecorator to manually decorate your links. Ernesto On Tue, Feb 1, 2011 at 12:39 PM, Patrick Petermair patrick.peterm...@openforce.com wrote: Hey! In our wicket application we are using a lot of Ajax links/forms. Sometimes, those requests take a second or two. We now want to give the user some feedback, that his request is being processed (to avoid double clicking or the impression that the webapp is slow). What would be the best way to execute custom javascript methods BEFORE the request gets sent to the webapp? Those javascript methods would then show a progress bar, a message like Your request is being processed.. etc. For example: The user clicks an AjaxLink to delete an entry from the table and before the request gets sent to the server, some javascript method adds a small progress bar at the top of the table. Once the ajax request is done, the progress bar disappears. Another example would be how Facebook handles sending private messages. As soon as I click the send button, the text area gets disabled / greyed out immediately and after the Ajax request has gone through, I get access again to the text area. Cheers, Patrick - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Provide the user with immediate feedback
Interesting the Ajax call decorator mentioned above sounds like a good
choice, I don't know the transactional steps for each solution, but to have
the javascript written entirely in the page without requiring some sort of
connection to the wicket server, does sound like it will be more immediate
if your worried about that 1 or 2 seconds of idle time however you want to
accomplish that.
http://radio.javaranch.com/pascarello/2005/05/17/1116340367337.html If you
need a script:
function DisableEnableForm(xForm,xHow){
objElems = xForm.elements;
for(i=0;iobjElems.length;i++){
objElems[i].disabled = xHow;
}
}
Just my two cents,
Matthew
Patrick Petermair wrote:
In our wicket application we are using a lot of Ajax links/forms.
Sometimes, those requests take a second or two. We now want to give the
user some feedback, that his request is being processed (to avoid double
clicking or the impression that the webapp is slow).
--
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