scroll-bar.js

// Sidebar scroll resetting fix
// When a passage is finished loading:
$(document).on(":passageend", function (event) {
	// simplified fix, iteration 2
	if (window.scrollUIBar) document.querySelector("#storyCaptionDiv").scroll(0, window.scrollUIBar);
	if (V.options.scrollRemember && V.passage === V.passagePrev) document.scrollingElement.scroll(0, window.scrollMain);
	/* previous version
	// get sidebar dom element, assign it to variable for convenience
	let sidebar = document.querySelector("#storyCaptionDiv");

	// if the sidebar was not found, quit before causing errors.
	if (sidebar == undefined) return;

	// if the bar was very close to the bottom, stay at the bottom. otherwise, scroll to last known scroll position
	if (setup.sidebarIsAtBottom){
		sidebar.scroll(0, sidebar.scrollHeight);
	} else {
		sidebar.scroll(0, setup.sidebarScrollY);
	}

	// update last known scroll position whenever the position is changed
	sidebar.addEventListener("scroll", function(){
		setup.sidebarScrollY = sidebar.scrollTop;
		setup.sidebarIsAtBottom = ((sidebar.scrollHeight - sidebar.scrollTop) < sidebar.clientHeight+10);
	}); */
});