1221074 - Wrong behavior of the scrubber when an animation is paused and another animation is Played and then Stopped

Status: RESOLVED WORKSFORME

(DevTools :: Inspector: Animations, defect, P3)

Description

[Mihai Boldan, Desktop QA [:mboldan]]

Attachment: video.mov

Reproducible with Nightly 44.0a1 (2015-10-29)
Affected platforms: Windows 10 x32, Ubuntu 13.10 x64 and Mac OS X 10.11

Steps to reproduce:

1. Launch Firefox and open https://bugzilla.mozilla.org/attachment.cgi?id=8680557.
2. Open the Inspector from the Developer option.
3. Select the Animations tool.
4. Stop the animations.
5. Click on one circle in order to toggle the animation.
6. Pause the animation by clicking on the elapsed time bar.
7. Click on the other circle in order to toggle the animation.
8. Click again on the same circle in order to stop the animation.

Expected results:
The first animation is paused and the scrubber is displayed where it was previously paused.

Actual results:
If the second animation is stopped after the scrubber is at the end, the scrubber from the first animation is played, but the animation is paused.
If the second animation is stopped before the scrubber is at the end, the scrubber from the firs animation is missing (See the attached video).

Note that the issue is not reproducible if the 'Pause' button is used for pausing the animation.

Comment 1

[Patrick Brosset <:pbro>]

Let's make this depend on bug 1210363. Once we group animations by startTime, this problem will go away.

Comment 2

[Daniel Bodea [:danibodea]]

This issue can no longer be reproduced using the latest Nightly v125.0a1 in Windows 10 or MacOS 11. Closing this report as worksforme.