issue #3539

[tushar743-ui]

#3539

[ImprovedTube]

welcome and thank you so much! @tushar743-ui @MichaelIsGreat123
we have two features for this on top of the player section.
( As one they are mutually exclusive, when enabling both, the earlier toggle is disabled again. )

Certainly many people use this, but some reviews said it was unreliable, so it will be great to consider at least Chrome and Firefox and any secondary code to fall back to.

I will agree in enabling this by default for every single installation, because it is nice,
if we think hard about possible adverse effects. Of course everything by default will cause some confusion,
but here the purpose seems to outweigh by far.

youtube/js&css/web-accessible/www.youtube.com/player.js

Lines 54 to 69 in 72dd0ac

	AUTOPAUSE WHEN SWITCHING TABS
	------------------------------------------------------------------------------*/
	ImprovedTube.playerAutopauseWhenSwitchingTabs = function () {
	const player = this.elements.player;
	if (this.storage.player_autopause_when_switching_tabs && player) {
	if (this.focus && this.played_before_blur && this.elements.video.paused) {
	player.playVideo();
	} else {
	this.played_before_blur = !this.elements.video.paused;
	if (!this.elements.video.paused) {
	player.pauseVideo();
	}
	}
	}
	};

youtube/js&css/extension/www.youtube.com/general/general.js

Lines 169 to 180 in 72dd0ac

	# ONLY ONE PLAYER INSTANCE PLAYING
	--------------------------------------------------------------*/
	extension.features.onlyOnePlayerInstancePlaying = function () {
	if (extension.storage.get('only_one_player_instance_playing') === true) {
	var videos = document.querySelectorAll('video');
	for (var i = 0, l = videos.length; i < l; i++) {
	videos[i].pause();
	}
	}
	};