blob: 01d40d7ebb50632769f265d43ce4c6d17ddbdc54 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
(function () {
const cookiesDisabled = !navigator.cookieEnabled;
if (cookiesDisabled) {
document.cookie = "disabled";
document.cookie.indexOf("disabled");
return console.log("Pager is disabled due to cookie restrictions.");
}
let settings = { pager: {} };
const url = self.location.href.split("#")[0].split("?")[0];
const scrollRestore = (url) => {
if (history.scrollRestoration) history.scrollRestoration = "manual";
if (localStorage["settings"]) {
settings = JSON.parse(localStorage["settings"]);
}
const fragment = document.getElementById(location.hash.slice(1));
const fragmentInURL = self.location.hash.length > 0;
if (fragmentInURL && document.body.contains(fragment)) {
settings["pager"][url] = self.pageYOffset;
localStorage["settings"] = JSON.stringify(settings);
fragment.scrollIntoView();
self.addEventListener("load", function () {
fragment.scrollIntoView();
});
return;
}
if (settings["pager"][url] > 0) {
self.scrollTo(0, settings["pager"][url]);
return;
}
settings["pager"][url] = self.pageYOffset;
localStorage["settings"] = JSON.stringify(settings);
};
const scrollTrack = (url) => {
const currentPosition = self.pageYOffset;
settings["pager"][url] = currentPosition;
localStorage["settings"] = JSON.stringify(settings);
};
const backTrack = (back, up, event) => {
if (document.body.contains(up) && up.contains(event.target)) {
event.preventDefault();
window.scrollTo(0, 0);
}
if (document.body.contains(back) && back.contains(event.target)) {
if (history.length < 2) return;
event.preventDefault();
history.go(-1);
}
};
self.addEventListener("DOMContentLoaded", function () {
scrollRestore(url);
self.addEventListener("click", function (event) {
const up = document.getElementById("top");
const back = document.getElementById("back");
backTrack(back, up, event);
});
});
self.addEventListener("scroll", function () {
scrollTrack(url);
});
self.addEventListener("hashchange", function () {
scrollRestore(url);
});
})();
|
