Note that I'm looking for a way to track this across the entire process, not a single document. I'd rather avoid having to track all documents (both XUL and HTML) in the process if I can find a simpler solution.
On 30/10/15 01:18, Brian Birtles wrote: > For CSS animations/transitions (not including SVG SMIL animations), you > could use: > > document.timeline.getAnimations().some( > anim => anim.playState == 'running') > > (Soon to become just document.getAnimations()) > > We could likewise just check if the DocumentTimeline is observing the > refresh driver since we should stop doing that when CSS > animations/transitions are at rest. > > For rAF animations we could use the the js::NotifyAnimationActivity > information? Or else look for registered frame request callbacks? > > I think we could probably detect SVG SMIL animations too, if needed > (perhaps by exposing the mRegisteredWithRefreshDriver member of > nsSMILAnimationController although that might be too broad). -- David Rajchenbach-Teller, PhD Performance Team, Mozilla
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