site/script.js at main · admin2001-coder/site · GitHub

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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
import { Pane } from 'https://cdn.skypack.dev/tweakpane@4.0.4';
import gsap from 'https://cdn.skypack.dev/gsap@3.12.0';
import ScrollTrigger from 'https://cdn.skypack.dev/gsap@3.12.0/ScrollTrigger';

const config = {
  theme: 'dark',
  animate: true,
  snap: true,
  start: gsap.utils.random(0, 100, 1),
  end: gsap.utils.random(900, 1000, 1),
  scroll: true,
  debug: false };


const ctrl = new Pane({
  title: 'Config',
  expanded: false });


let items;
let scrollerScrub;
let dimmerScrub;
let chromaEntry;
let chromaExit;

const update = () => {
  document.documentElement.dataset.theme = config.theme;
  document.documentElement.dataset.syncScrollbar = config.scroll;
  document.documentElement.dataset.animate = config.animate;
  document.documentElement.dataset.snap = config.snap;
  document.documentElement.dataset.debug = config.debug;
  document.documentElement.style.setProperty('--start', config.start);
  document.documentElement.style.setProperty('--hue', config.start);
  document.documentElement.style.setProperty('--end', config.end);

  if (!config.animate) {var _chromaEntry, _chromaExit, _dimmerScrub, _scrollerScrub;
    (_chromaEntry = chromaEntry) === null || _chromaEntry === void 0 ? void 0 : _chromaEntry.scrollTrigger.disable(true, false);
    (_chromaExit = chromaExit) === null || _chromaExit === void 0 ? void 0 : _chromaExit.scrollTrigger.disable(true, false);
    (_dimmerScrub = dimmerScrub) === null || _dimmerScrub === void 0 ? void 0 : _dimmerScrub.disable(true, false);
    (_scrollerScrub = scrollerScrub) === null || _scrollerScrub === void 0 ? void 0 : _scrollerScrub.disable(true, false);
    gsap.set(items, { opacity: 1 });
    gsap.set(document.documentElement, { '--chroma': 0 });
  } else {
    gsap.set(items, { opacity: i => i !== 0 ? 0.2 : 1 });
    dimmerScrub.enable(true, true);
    scrollerScrub.enable(true, true);
    chromaEntry.scrollTrigger.enable(true, true);
    chromaExit.scrollTrigger.enable(true, true);
  }
};

const sync = event => {
  if (
  !document.startViewTransition ||
  event.target.controller.view.labelElement.innerText !== 'Theme')

  return update();
  document.startViewTransition(() => update());
};
ctrl.addBinding(config, 'animate', {
  label: 'Animate' });

ctrl.addBinding(config, 'snap', {
  label: 'Snap' });

ctrl.addBinding(config, 'start', {
  label: 'Hue Start',
  min: 0,
  max: 1000,
  step: 1 });

ctrl.addBinding(config, 'end', {
  label: 'Hue End',
  min: 0,
  max: 1000,
  step: 1 });

ctrl.addBinding(config, 'scroll', {
  label: 'Scrollbar' });

ctrl.addBinding(config, 'debug', {
  label: 'Debug' });


ctrl.addBinding(config, 'theme', {
  label: 'Theme',
  options: {
    System: 'system',
    Light: 'light',
    Dark: 'dark' } });


ctrl.on('change', sync);

// backfill the scroll functionality with GSAP
if (
!CSS.supports('(animation-timeline: scroll()) and (animation-range: 0% 100%)'))
{
  gsap.registerPlugin(ScrollTrigger);

  // animate the items with GSAP if there's no CSS support
  items = gsap.utils.toArray('ul li');

  gsap.set(items, { opacity: i => i !== 0 ? 0.2 : 1 });

  const dimmer = gsap.
  timeline().
  to(items.slice(1), {
    opacity: 1,
    stagger: 0.5 }).

  to(
  items.slice(0, items.length - 1),
  {
    opacity: 0.2,
    stagger: 0.5 },

  0);


  dimmerScrub = ScrollTrigger.create({
    trigger: items[0],
    endTrigger: items[items.length - 1],
    start: 'center center',
    end: 'center center',
    animation: dimmer,
    scrub: 0.2 });


  // register scrollbar changer
  const scroller = gsap.timeline().fromTo(
  document.documentElement,
  {
    '--hue': config.start },

  {
    '--hue': config.end,
    ease: 'none' });


  scrollerScrub = ScrollTrigger.create({
    trigger: items[0],
    endTrigger: items[items.length - 1],
    start: 'center center',
    end: 'center center',
    animation: scroller,
    scrub: 0.2 });


  chromaEntry = gsap.fromTo(
  document.documentElement,
  {
    '--chroma': 0 },

  {
    '--chroma': 0.3,
    ease: 'none',
    scrollTrigger: {
      scrub: 0.2,
      trigger: items[0],
      start: 'center center+=40',
      end: 'center center' } });


  chromaExit = gsap.fromTo(
  document.documentElement,
  {
    '--chroma': 0.3 },

  {
    '--chroma': 0,
    ease: 'none',
    scrollTrigger: {
      scrub: 0.2,
      trigger: items[items.length - 2],
      start: 'center center',
      end: 'center center-=40' } });


}
// run it
update();