On Tue, Sep 4, 2012 at 10:07 AM, David Geary <david.mark.ge...@gmail.com> wrote: > On Tue, Sep 4, 2012 at 10:53 AM, Boris Zbarsky <bzbar...@mit.edu> wrote: >> Ms2ger points out (without endorsing) that there's an: >> >> 8) Have every author who wants their canvas to stick around call >> toDataURL() and stick the result in an <img src>. > > And then the browser presumably uses the img to regenerate the canvas on a > lost context? Why not just give developers a callback and let them restore > the canvas as they see fit?
No, the author just uses the <img> in their page instead. The <canvas> is only used in JS to generate the image, and is never put into the document at all. And again, the reason that "just give them a contextloss event" is bad is because most people simply won't do it. It doesn't make any sense! The browser just... forgets about your image, which it was displaying fine just a second ago? ~TJ