On 7 avr, 16:13, Gary1975 <[email protected]> wrote: > Hi, > > I am relatively new to GWT devlopment and was wondering of someone > could please help to explain why the progress dialog is not displaying > in the following function. Also, the "timeperiod" window is not hiding > itself until after the line has been drawn. Any ideas would be > gratefully received as I have been struggling with this all day.
JavaScript in the browser is single-threaded, and moreover runs in the UI thread. This means that changes to the page are only reflected when your script "yields", i.e. in your case at the end of your onClick method. The simplest way to make it work as you're expecting is to use a DeferredCommand: wrap everything that follows timepedior.hide() and MessageBox.show(...) within a DeferredCommand; this would "yield" so the browser can effectively hide the "timeperiod" and show the MessageBox and then (something like 10ms later) do the drawing and close the MessageBox. (btw: which library are those Window and MessageBox coming from?) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
