Re: Displaying a "loading" image while waiting on RPC

I agree with Chad, I have this in my click handler:

        display.getButton().addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                display.getButton().disable();
                display.setStatusText("Please wait while your connection is verified...");
                doAuthorize(); //rpc called in this method, and status updated with pass/fail messages, button re-enabled
               
            }
        });

On Fri, Jul 31, 2009 at 10:31 AM, Chad <chadler@xxxxxxxxx> wrote:

Nick,

Create your message however you want (DecoratedPopupPanel, GlassPanel,
Highlighted text, whatever). Just before you call your RPC, display
your message. Then, in both the onFailure and onSuccess methods of
your AsyncCallback, hide your message.

HTH,
Chad

On Jul 30, 8:21 pm, Nick_Zaillian <nzaill...@xxxxxxxxx> wrote:
> Hey all.  This is my first post to the group.  I've got a little GWT/
> App Engine web app (at nicksmap.org) I've whipped up that maps New
> York area craigslist rental listings (yeah, I know, others have done
> it already, but all of the other implementations miss A LOT of
> listings and have no flagging features...so I thought there was room
> for me to go ahead and try to do it right).  I've got an RPC that gets
> called every time a user drags a map.  This function (er....method)
> provides data that is then used to populate the map with markers and
> correspnding infowindow content.  Because of the sheer number of
> listings I am dealing with, the RPC can often take a few seconds to
> deliver all of its data, during which time it looks to the user like
> nothing is happening.  I would like to be able to display a loading
> icon during this time.  I'm sure that this is a pretty trivial thing
> to do -- I'm just not sure how to do it, so thought I should ask the
> group.
> Thanks,
> Nick Zaillian

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