1334801 - WhatsApp Web emoji selector does not slide out smoothly

Status: RESOLVED DUPLICATE of bug 1334715

(Core :: Graphics: Layers, defect)

Description

[Fanolian]

Attachment: Unsmooth WhatsApp Web emoji selector (2017-01-28 build)

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170128030204

Steps to reproduce:

(Please refer to the attached video.)

0. Have a WhatsApp account.
1. Log in to https://web.whatsapp.com/.
2. In the chat window, click the emoji selector so it slides out.


Actual results:

The transition is not smooth.

Note:
Same as bug 1334715, the bug does not appear in non-e10s mode.

Comment 1

[Fanolian]

Attachment: Expected result (2017-01-25 build)

From mozregression:

Last good Nightly: 2017-01-25
First bad Nightly: 2017-01-26
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=6dccae211ae5fec6a1c1244b878ce0b93860154f&tochange=fbdfcecf0c774d2221f11aed5a504d5591c774e0

Further bisection:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=f0248c53cef751d0eed4c9d1979d69f32dc5c617&tochange=44f9535628fd46d78fe020a8175bedc5f8b98680

Regressed by bug 1332567

Comment 2

[David Anderson [:dvander] - inactive, e-mail if emergency]

This is actually unbearably slow for me on two builds I tried before that changeset: Firefox 52 beta, and the Nightly from 1/23. But, I tried selecting an emoji from the "Create Group" window instead of a chat window.

Does the "Create Group" window exhibit the same behavior for you? (Slow before, and slow after, that changeset?)

Comment 3

[Fanolian]

(In reply to David Anderson [:dvander] from comment #2)
> This is actually unbearably slow for me on two builds I tried before that
> changeset: Firefox 52 beta, and the Nightly from 1/23. But, I tried
> selecting an emoji from the "Create Group" window instead of a chat window.
> 
> Does the "Create Group" window exhibit the same behavior for you? (Slow
> before, and slow after, that changeset?)

No, the emoji selector in "Create Group" window is smooth for me, before or after the changeset.

Comment 4

[Fanolian]

I can no longer reproduce this bug in 2017-02-01 build. It's probably fixed by bug 1334715.

Comment 5

[Gerry Chang [:gchang]]

Since 54 was fixed in bug 1334715, mark 54 fixed.