Sat, 25 Feb 12
Calling GWT code from javascript
There are lots of snippets out there on the internet telling you how to run GWT code from javascript. Here’s the canonical one.
I recently did a fair bit of this, calling GWT code from jquery. Two things jumped out:
- Make sure your jquery method is run in
$(window).load(), not$(document).ready(). If you use the latter, your GWT code will not have executed and exported the javascript method to the window object. More on that. - I couldn’t find a list of valid java type signatures (even in the JVM book) for the longest time, but here they are, at long last.
Update, 2/26: I ran into some issues with using $window.load(). What you have to do instead is create a gwtonload function and call it from your gwt loader via jsni. This ensures that GWT code is fully loaded, which $window.onload() does not.
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Tom Carchrae said,
April 24, 2012 at 7:05 am
You might want to check out the GWT exporter project as it helps with some of this pain: http://code.google.com/p/gwt-exporter/
moore said,
April 24, 2012 at 10:43 am
Thanks Tom, that project looks very useful!