"Only one player instance playing"

[hadynpark]

Start here #1516 (comment) & 2. (Edit by @ImprovedTube)

Bug Report:

⚬ BUG:
When using the "Only one player instance playing" feature changing to any youtube tab no matter if it is even displaying a video instantly pauses the tab playing a video.
⚬ HOW:

1. Enable the "Only one player instance playing" feature.
2. Open a tab with a video and start playing it.
3. Change active tab to any other youtube tab.

(making a new tab doesnt seem to make it pause, I can even open a video and start playing without Pausing the other one.)

⚬ EXPECTED (/preferred) behavior:
Playing youtube video should pause only when I try to play a video in a different tab.

Setup:

⚬ ImprovedTube Version: 3.935
⚬ Browser: Firefox 107.0.1
⚬ Settings: Just "Only one player instance playing" on
⚬ OS: Win10

[MohamedLebda]

I found out that the problem is when a new tap starts it selects only the video element on the page so the videos node length will always be 1

[MohamedLebda]

You can find the code in the general.js file in the content-scripts file. for now, I couldn't find a solution where I can get the video across all tabs in that case the solution will be easy just change the i in the for lobe to 1.

[MohamedLebda]

As a temporary solution, I set a counter so I can skip the first time the code run but after that, it works properly

[ImprovedTube]

welcome @MohamedLebda thank you!

[ImprovedTube]

video across all tabs

please check if it still works in version v3.965 (manifest2) https://github.com/code-for-charity/ImprovedTube-for-YouTube/tree/HEAD@%7B2022-10-07%7D, and what is the difference.

[MohamedLebda]

in the last version (manifest version: 2 v3.935), it used different logic, first of all, it doesn't select the video element but its parent and its idea depend on 3 conditions(this.storage.only_one_player_instance_playing, this. focus, ImprovedTube.played_before_blur). when choosing only one player instance it set this.storage.only_one_player_instance_playing: true so that if you open a new tap and choose that tap it sets the other two to true so it fires the player.playVideo() function. But the bug in that version was because of ImprovedTube.played_before_blur, Even without the player element being defined or doing any action the same bug will happen when ImprovedTube.played_before_blur is true. I didn't dig any deeper because it is a different logic than the new version manifest version : 3

[ImprovedTube]

3 conditions

thanks again! @MohamedLebda Sorry, i didnt see this is about 3.9* ManiFest2 🙈
4.0.17 works for me without #1562. (While #1562 will make an newly opened tab play at once until any other action happens there. For example advertisment ending, then the new tab will pause). Still #1562 could help in firefox? #1578 (comment) .

"Only one player playing": (Means by definition,)

• a) Whether clicking "play" in another tab, this should always become the (only) playing tab.
• b) Same for opening a tab with autoplaying video or sound - Unless the user has disabled autoplay* with us ( - or the browser is blocking autoplay of background tabs, like they do by default now*)
• c) in turn it should also unpause again (when going back to a tab previously paused by the feature (not paused by the user)
  (this 'c)' works in 3.9x. And works in our "autopause when switching tabs"-feature, based on: played_before_blur
  • the only difference here is: a player will only pause, when a another tab is trying to play a video or sound and successfully playing)

---

BTW we can easily offer this same way for many websites <video> (not only youtube)

---

*(gotta fix our autoplay:off features too #1508 (autoplay:off) once again comparing: version 3.965.zip (= october7 ) (
or https://greasyfork.org/en/scripts/8123-youtube-click-to-play/code )

[raszpl]

while dc56797 fixes the issue, its not good. It spams non associated tabs with messages. Whats the deal with action: "new-tab-opened"?
cleanup #2356 fixes half of #2284

[ImprovedTube]

action: "new-tab-opened"

we can check in old versions #1658