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isn't it crazy that i got to the end of making this button and then someone said "oh you know the browser back button saves anchor history already right?"

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Juicysteak117
2025-10-26 17:25:28 -07:00
parent 67204fbb95
commit 396a50830f
6 changed files with 632 additions and 537 deletions
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55
export/pghrtjs.js
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@@ -5,12 +5,13 @@ function initTocOnClick() {
var i;
for (i = 0; i < coll.length; i++) {
coll[i].addEventListener("click", function () {
coll[i].addEventListener("click", function (event) {
this.classList.toggle("active");
var content = this.nextElementSibling;
if (content) {
if (content.style.maxHeight) {
content.style.maxHeight = null;
event.preventDefault(); // don't jump when closing
} else {
content.style.maxHeight = content.scrollHeight + "px";
}
@@ -33,6 +34,8 @@ function copyURI(evt) {
// clipboard write failed
});
// toast that i ripped from w3schools. does not nicely handle being spam clicked. w/e
// OKAY understanding more later. why is this replace and not remove? so ugly wow...
// you're telling me that chatgpt and copilot were trained on obtuse garbage like this!?
var x = document.getElementById("snackbar");
x.className = "show";
setTimeout(function(){ x.className = x.className.replace("show", ""); }, 2000);
@@ -105,9 +108,57 @@ function initFontToggle() {
});
}
// saving the scroll position for clicking references or toc
function saveScroll() {
var coll = document.querySelectorAll(".ltx_ref");
var i;
for (i = 0; i < coll.length; i++) {
coll[i].addEventListener("click", function () {
document.getElementById("return").classList.add("show"); // only fires once
pos = window.scrollY;
scrollArray = JSON.parse(sessionStorage.getItem('scrollPos'));
scrollArray.unshift(pos);
sessionStorage.setItem('scrollPos', JSON.stringify(scrollArray));
});
}
}
// it returns. positions stored in array then will jump back
function returnScroll() {
document.getElementById("return").addEventListener("click", function () {
scrollArray = JSON.parse(sessionStorage.getItem('scrollPos'));
// check if saved, otherwise goto top and remove back arrow
if (scrollArray.length > 1) {
pos = scrollArray.shift();
sessionStorage.setItem('scrollPos', JSON.stringify(scrollArray));
window.scroll(0, Number(pos));
}
else if (scrollArray.length == 1) {
this.classList.remove("show");
pos = scrollArray.shift();
sessionStorage.setItem('scrollPos', JSON.stringify(scrollArray));
window.scroll(0, Number(pos));
// scroll top
}
else {
this.classList.remove("show");
window.scroll(0, 0);
// scroll top
}
});
}
// run da functions
initTocOnClick();
detectColorScheme();
detectFont();
initThemeToggle();
initFontToggle();
initFontToggle();
saveScroll();
returnScroll();
// init scoll pos array storage (should this be done elsehow?)
sessionStorage.setItem('scrollPos', JSON.stringify([]));