On Jan 6, 2012, at 8:18 AM, Alexandru Chiculita ach...@adobe.com wrote:
I need to add more tests for CSS Shaders, but I couldn't find a nice way to
know that a cached resource is loaded. So the result is that in DRT the
screenshot is taken too early. Other tests use the onload event of the
associated tag (ie. img, iframe, script), but CSS Shaders have no such tag.
Do you know if there's any DRT method that forces a sync load or waits for a
specific resource?
If not, I think a workaround would be to use a hidden iframe (or script tag)
and the onload event. Other ideas?
What triggers loading the shaders? If you can force them to start loading
before the load event fires, then it shouldn't fire until they're finished
loading. This is the case with custom fonts: the forced layout that happens
when we finish parsing the main resource triggers the requests for @font-face
sources, and thus holds up the load event.
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