[development] hijack node submit/preview to process ajax call first?

[Aaron Winborn]

I'm creating an HTML5 canvas editor for a filefield widget, which 
uploads a canvas image, returning an FID to be stored in a textfield. 
Everything works, except that now I want to delay node submission until 
the canvas has a chance to save its work (assuming its associated 'Save' 
button hasn't yet been clicked).

I'm mostly there, thanks to some help from merlinofchaos. Currently, I 
save the work and return false on the submit/preview click, and 
trigger('submit') after the ajax call to save the canvas. However, it's 
not quite working -- the canvas saves properly, storing the new fid in 
the field, but the form is reloaded, rather than processing.

http://drupalbin.com/16680

Any ideas?

Thanks,
Aaron

-- 
Aaron Winborn

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