1576738 - Thunderbird snap to screen leaving a gap

Status: UNCONFIRMED

(Thunderbird :: OS Integration, defect)

Description

[Stanzilla]

Attachment: IMG_20190826_213852.jpg

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0

Steps to reproduce:

Use Windows' snap feature to snap Thunderbird to the left side of the screen

Actual results:

It snaps but leaves a 2(?) pixel gap, you can see the white app that is behind Thunderbird in the gap

Expected results:

No gap

Comment 1

[Jorg K (CEST = GMT+2)]

Does this happen with FF?

Comment 2

[Stanzilla]

(In reply to Jorg K (GMT+2) from comment #1)

Does this happen with FF?

Nope! Same as bug 1413133, FF does it right.

Comment 3

[Stanzilla]

Can we set this to "Confirmed"?

Comment 4

[Jorg K (CEST = GMT+2)]

Has anyone reproduced it yet?

Comment 5

[Stanzilla]

Oh sorry, I meant "New". But I guess that only works when someone else confirmed it as well. Oh well.

Comment 6

[Wayne Mery (:wsmwk)]

Alfred, can you reproduce this?

Comment 7

[Stanzilla]

In case Alfred can't, I still can :)

Comment 8

[Wayne Mery (:wsmwk)]

(In reply to Stanzilla from comment #7)

In case Alfred can't, I still can :)

Alfred is gone. So your help would be appreciated

Comment 9

[Stanzilla]

Well what do you need? My settings? The steps in the original ticket text still reproduce for me.

Comment 10

[Wayne Mery (:wsmwk)]

You can comment as to whether your bug 1413133 is essentially the same issue

Comment 11

[Stanzilla]

Hrm, I don't think so, the gap from the position it does get restored at is a lot bigger.

Comment 12

[Wayne Mery (:wsmwk)]

TCW, can you reproduce this, and bug 1413133?

Comment 13

[Arthur K. (he/him)]

(In reply to Wayne Mery (:wsmwk) from comment #12)

TCW, can you reproduce this, and bug 1413133?

Testing with 91.0b4 x64 So, as far as snapping (Window+Left or Right arrow key) goes, it still repros. Kind of. On a first test, it worked fine. Subsequent tests, did not. Further, I am only able to use the Window+Left arrow key to do snapping. It will stop working using Window+Right arrow key.

Can someone else test this using 91.0b4.

1. Start TB full screen and do Window+Right arrow key. Should snap to the right side of the screen fully.
2. Do another Window+Right arrow key action. Notice it now has the slight pixel gap at the right of the screen.
3. Do yet another Window+Right arrow key. In my case, it snaps fully to the LEFT side of the screen.
4. Do yet another Window+Right arrow key. In my case, it now has the slight pixel gap at the LEFT of the screen.

After four Window+Right arrow key presses, it no longer works and I have to now use Window+Left arrow key.

As for Bug 1413133, I can confirm using these STR that it still happens along with a couple additional observation. In my case, I do not have to fully shut down the machine. I simply had to close TB using the [X] up at the top left or a File > Exit action while TB is in a snapped-left state. Oddly, It will eventually stop work using Window+Left arrow key and only allow me to use Window+Right arrow key. The exact opposite of what I observed above. Something is wonky here.