1353422 - Change the connecting/loading tab animation to use the SVG filmstrip approach

Status: RESOLVED DUPLICATE of bug 1352119

(Firefox :: General, defect)

Description

[Jared Wein [:jaws] (please needinfo? me)]

We are using the SVG filmstrip approach for https://bugzilla.mozilla.org/show_bug.cgi?id=1352063 and https://bugzilla.mozilla.org/show_bug.cgi?id=1352065. We should use the same approach for the connecting/loading indicators in the tab bar.

This will help us validate the approach sooner as well as have consistent implementation to make future maintenance easier.

Comment 1

[Markus Stange [:mstange]]

It should be noted that in the throbber case, the filmstrip approach is going to perform worse than the current animation. A simple rotation is a great candidate for *not* using a filmstrip. But I can see the value in validating the approach and having a consistent implementation.

Comment 2

[Dão Gottwald [:dao]]

(In reply to Markus Stange [:mstange] from comment #1)
> It should be noted that in the throbber case, the filmstrip approach is
> going to perform worse than the current animation. A simple rotation is a
> great candidate for *not* using a filmstrip.

Right... I think any further perf regression makes this a showstopper. In my book, bug 1352085 is the most important blocker for bug 759252. Bug 1351323 is unfortunate, but maybe something can be done about it from the Gecko side.