1677080 - Fullscreen PiP window is affected by switching video source

Status: ASSIGNED

(Toolkit :: Video/Audio Controls, defect, P1)

Description

[Andrei Oprea [:andreio]]

STR (makes more sense for 2 monitor setups but I think it can be reproduced everywhere):

1. Play in Fullscreen PiP mode a video from youtube
2. Switch to a higher quality mode as the video plays
   The PiP window is affected and is no longer full screen (now covers only 3/4 of the screen) but still "thinks" it's in fullscreen mode (if you double click it you see how it goes back to the initial size as if existing full screen mode).

Tried on latest m-c central, OSX

Comment 1

[Niklas Baumgardner]

Attachment: Bug 1677080 - PiP stays in fullscreen when changing src while in fullscreen. r?mconley

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/50141dc32966
PiP stays in fullscreen when changing src while in fullscreen. r=mconley

Comment 3

[Noemi Erli[:noemi_erli]]

Backed out changeset 50141dc32966 (Bug 1677080) for causing failures in browser_changePiPSrcInFullscreen.js CLOSED TREE

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&collapsedPushes=842382&selectedTaskRun=Z_zhBwT1TPqX1-Tt9gYB2g.0&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&classifiedState=classified&revision=50141dc329663dd6dfc084e19daf86fe749231e6

Failure log: https://treeherder.mozilla.org/logviewer?job_id=327290819&repo=autoland&lineNumber=2282
https://treeherder.mozilla.org/logviewer?job_id=327290577&repo=autoland&lineNumber=3502
https://treeherder.mozilla.org/logviewer?job_id=327290516&repo=autoland&lineNumber=4268

Backout: https://hg.mozilla.org/integration/autoland/rev/013cb10976bdc132df1b4f49b3d61d5118fcb7d5

Comment 5

[Release mgmt bot [:sylvestre / :calixte / :marco for bugbug]]

There's a r+ patch which didn't land and no activity in this bug for 2 weeks.
:baumga91, could you have a look please?
For more information, please visit auto_nag documentation.

Comment 6

[Petruta Horea [:phorea]]

Latest Nightly 87.0a1 (2021-02-19), Win 10 64-bit, I have a laptop and an external monitor attached to it:

1. Open youtube.com and play in fullscreen PiP a video on the external monitor - image is fullscreen
2. Change video quality - Windows taskbar appears
3. Close PiP window and reopen it - the image will cover 3/4 of the screen. Double click on it will place it correctly on the screen.

This also happens if the PiP window is closed for the first video and the PiP window is opened for another video.

Comment 7

[Mike Conley (:mconley) (:⚙️)]

Tentatively unassigning this one in case someone wants to try driving it through.

Comment 8

[vojoh43210]

This bug also affects single display setups. Here is how to reproduce it:

1. Start any Youtube video in high resolution
2. Paste this code in the console to change the resolution to low after 10 seconds:

setTimeout(function() {
    ytPlayer = document.getElementById("movie_player") || document.getElementsByClassName("html5-video-player")[0];
    ytPlayer.setPlaybackQualityRange('tiny');
}, 10000);

3. within 10 seconds after running the code above, have the video run in a full-screen PiP window

On Windows, the PiP window now has the same size as the full-screen window but shifted up to show the taskbar. The new window cannot be resized or moved and does not respond to doubleclicking. The only way to regain control is to close PiP.

Due to this bug, watching livestreams where the resolution changes frequently due to buffering is cumbersome.