[Webkit-unassigned] [Bug 244128] Add experimental feature to disable Bitmap image animations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244128

--- Comment #41 from Joshua Hoffman <jhoffman23 at apple.com> ---
(In reply to Said Abou-Hallawa from comment #40)

> > +This patch adds a new experimental AX preference, which when disabled, prevents BitmapImage animations. Additionally, we provide new interfaces to control animations at the page and individual image level.
> 
> re: Additionally, we provide new interfaces to control animations at the
> page and individual image level.
> 
> 1) What is the use case of controlling the animation on individual image?
> 2) What is the interface for using this feature? In this patch I see
> resumeAnimation()/pauseAnimation() are used by Internals only. Is the plan
> to use it for testing only?
> 3) What should happen if two HTMLImageElements are accessing the same image
Users who have animations disabled globally may want to see a particular animation that contains important content, without having to resume all animations. Several sites & social media platforms implement this type of control in their own settings already.

A context menu item to resume/pause these animations would provide users an interface to control this.

For #3, see below. 

> <img id="image1" src="animated_image.gif">
> <img id="image2" src="animated_image.gif">
> <script>
>     internals.resumeImageAnimation(image1);
> </script>
> 
> Do you expect the animation will be resumed in both elements (image1  and
> image2) or only the first one (image1)?

If it's the same source, both images will resume animation. This assumes a user who wants to see a particular image animate will want to see that image animate in all occurrences.

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