feat(site): replace Visual Mode section with Live Mode + interactive demo

Section 05 is now "Live Mode" with a self-contained real-DOM animated
demo loop. Browser chrome + stage + picker bar + simulated cursor,
running through the full Live Mode flow:

  hover → outline → click → open command picker → pick "delight" →
  type "more playful" → draw stroke → Go → generating → three
  variants cycled → accept → write-to-source confirmation → reset

Three distinct card variants morph in place so the cycling reads as
real iteration, not a slideshow of the same card. Picker bar states
(idle / configuring / generating / cycling / accepted) are driven by
data-phase and matching CSS selectors. Simulated cursor animates
between targets on an expo-out curve; annotations draw a scribble
stroke and pop a comment tag. IntersectionObserver gates the timeline
so it only plays while visible, and prefers-reduced-motion freezes
on a cycling / variant 3 still.

Supporting row below the frame adds the three honest limitations:
frameworks supported (Vite/Next/SvelteKit/Astro/Nuxt), writes to real
source via HMR, CSP-strict apps get a one-time dev-only patch.

Top-nav rename "Visual Mode" → "Overlay" (points at /visual-mode
which is still the overlay-focused sub-page). Sticky section-nav
updated too.

New file: public/js/components/live-demo.js with the timeline driver.
This commit is contained in:
Paul Bakaus
2026-04-22 13:33:14 -07:00
parent bd25de9801
commit d72ac00226
4 changed files with 874 additions and 32 deletions
+2
View File
@@ -8,6 +8,7 @@ import { initScrollReveal } from "./js/utils/reveal.js";
import { initAnchorScroll, initHashTracking } from "./js/utils/scroll.js";
import { initSectionNav } from "./js/components/section-nav.js";
import { initFoundationGrid } from "./js/components/foundation-grid.js";
import { initLiveDemo } from "./js/components/live-demo.js";
// ============================================
// STATE
@@ -215,6 +216,7 @@ function init() {
initFoundationGrid();
initSectionNav();
initWhyTabs();
initLiveDemo();
loadContent();
document.body.classList.add("loaded");
+503
View File
@@ -2688,3 +2688,506 @@
text-transform: uppercase;
margin-top: -2px;
}
/* ============================================
LIVE MODE — interactive demo loop
============================================ */
.live-section {
padding: var(--spacing-2xl) 0;
border-top: 1px solid var(--color-mist);
}
.live-content .section-lead {
max-width: 64ch;
margin-bottom: var(--spacing-xl);
}
.live-demo {
display: flex;
flex-direction: column;
gap: var(--spacing-md);
margin-bottom: var(--spacing-xl);
}
.live-demo-frame {
position: relative;
background: var(--color-cream);
border: 1px solid var(--color-mist);
border-radius: 12px;
overflow: hidden;
aspect-ratio: 16 / 9;
max-width: 960px;
box-shadow: 0 20px 50px oklch(0% 0 0 / 0.08);
user-select: none;
}
.live-demo-chrome {
display: flex;
align-items: center;
gap: 7px;
padding: 10px 14px;
border-bottom: 1px solid var(--color-mist);
background: var(--color-paper);
}
.live-demo-dot {
width: 10px;
height: 10px;
border-radius: 50%;
background: var(--color-mist);
}
.live-demo-url {
margin-left: 14px;
padding: 4px 14px;
background: var(--color-cream);
border: 1px solid var(--color-mist);
border-radius: 5px;
font-family: var(--font-mono);
font-size: 11px;
color: var(--color-charcoal);
}
.live-demo-stage {
position: relative;
height: calc(100% - 42px - 60px); /* minus chrome + bar */
display: flex;
align-items: center;
justify-content: center;
padding: 32px;
overflow: hidden;
}
/* Target card */
.live-demo-target {
position: relative;
width: min(360px, 80%);
min-height: 200px;
}
.live-demo-variant {
position: absolute;
inset: 0;
opacity: 0;
transform: translateY(8px) scale(0.99);
transition: opacity 280ms var(--ease-out), transform 280ms var(--ease-out);
pointer-events: none;
}
.live-demo-variant.is-active {
opacity: 1;
transform: translateY(0) scale(1);
pointer-events: auto;
}
.live-demo-card {
display: flex;
flex-direction: column;
gap: 10px;
padding: 22px 24px;
background: var(--color-paper);
border: 1px solid var(--color-mist);
border-radius: 8px;
height: 100%;
box-sizing: border-box;
}
.live-demo-card-kicker {
font-family: var(--font-mono);
font-size: 10px;
letter-spacing: 0.18em;
text-transform: uppercase;
color: var(--color-ash);
}
.live-demo-card h3 {
font-family: var(--font-display);
font-weight: 400;
font-size: 20px;
line-height: 1.2;
color: var(--color-ink);
margin: 0;
}
.live-demo-card p {
font-family: var(--font-body);
font-size: 13px;
line-height: 1.5;
color: var(--color-charcoal);
margin: 0;
}
.live-demo-card button {
align-self: flex-start;
margin-top: auto;
font-family: var(--font-body);
font-weight: 500;
font-size: 12px;
letter-spacing: 0.06em;
text-transform: uppercase;
padding: 9px 16px;
background: var(--color-ink);
color: var(--color-paper);
border: 0;
border-radius: 0;
cursor: pointer;
}
/* Per-variant look */
.live-demo-card--plain {}
.live-demo-card--v1 {
background: var(--color-cream);
}
.live-demo-card--v1 h3 { font-style: italic; }
.live-demo-card--v1 h3 em { color: var(--color-accent); font-style: italic; }
.live-demo-card--v2 {
background: var(--color-paper);
border: 1px dashed var(--color-accent);
}
.live-demo-card--v2 .live-demo-card-kicker { color: var(--color-accent); }
.live-demo-card--v2 h3 { font-family: var(--font-display); font-style: italic; }
.live-demo-card--v2 button {
background: var(--color-accent);
}
.live-demo-card--v3 {
background: oklch(96% 0.02 350);
border: 1px solid var(--color-accent-soft);
}
.live-demo-card--v3 h3 em { color: var(--color-accent); font-style: italic; }
.live-demo-card--v3 .live-demo-card-kicker { color: var(--color-accent-hover); }
/* Highlight outline over the target */
.live-demo-outline {
position: absolute;
border: 2px solid var(--color-accent);
border-radius: 8px;
pointer-events: none;
opacity: 0;
transition: opacity 200ms var(--ease-out), top 320ms var(--ease-out), left 320ms var(--ease-out), width 320ms var(--ease-out), height 320ms var(--ease-out);
box-shadow: 0 0 0 4px var(--color-accent-dim);
}
.live-demo-outline.is-visible {
opacity: 1;
}
/* Annotations */
.live-demo-annotations {
position: absolute;
inset: 0;
pointer-events: none;
opacity: 0;
transition: opacity 280ms var(--ease-out);
color: var(--color-accent);
}
.live-demo-annotations.is-visible { opacity: 1; }
.live-demo-stroke {
position: absolute;
width: 280px;
height: 56px;
top: 50%;
left: 50%;
transform: translate(-50%, -24px);
pointer-events: none;
}
.live-demo-stroke path {
stroke-dasharray: 1;
stroke-dashoffset: 1;
}
.live-demo-annotations.is-visible .live-demo-stroke path {
animation: liveDemoStroke 800ms var(--ease-out) forwards;
}
@keyframes liveDemoStroke {
to { stroke-dashoffset: 0; }
}
.live-demo-comment {
position: absolute;
top: 56%;
left: 50%;
transform: translate(-50%, 0);
padding: 5px 10px;
background: var(--color-ink);
color: var(--color-paper);
font-family: var(--font-mono);
font-size: 11px;
border-radius: 4px;
white-space: nowrap;
opacity: 0;
transition: opacity 200ms var(--ease-out);
}
.live-demo-annotations.is-comment-visible .live-demo-comment { opacity: 1; }
/* Simulated cursor */
.live-demo-cursor {
position: absolute;
top: 0;
left: 0;
width: 18px;
height: 22px;
pointer-events: none;
opacity: 0;
transform: translate(0, 0);
transition: opacity 200ms var(--ease-out), transform 560ms var(--ease-out-quint);
z-index: 5;
filter: drop-shadow(0 2px 4px oklch(0% 0 0 / 0.2));
}
.live-demo-cursor.is-visible { opacity: 1; }
.live-demo-cursor.is-click svg path {
transform-origin: 4px 4px;
animation: liveDemoCursorClick 220ms var(--ease-out);
}
@keyframes liveDemoCursorClick {
0%, 100% { transform: scale(1); }
40% { transform: scale(0.78); }
}
/* Picker bar at the bottom */
.live-demo-bar {
position: absolute;
bottom: 14px;
left: 50%;
transform: translateX(-50%);
min-height: 36px;
padding: 0 4px;
background: oklch(14% 0 0);
color: oklch(92% 0 0);
border-radius: 999px;
display: flex;
align-items: center;
gap: 2px;
font-family: var(--font-body);
font-size: 12px;
box-shadow: 0 8px 24px oklch(0% 0 0 / 0.2);
overflow: hidden;
transition: width 320ms var(--ease-out);
}
.live-demo-bar > div {
display: none;
align-items: center;
gap: 2px;
padding: 0 6px;
}
.live-demo-bar[data-phase="idle"] .live-demo-bar-idle,
.live-demo-bar[data-phase="configuring"] .live-demo-bar-config,
.live-demo-bar[data-phase="generating"] .live-demo-bar-generating,
.live-demo-bar[data-phase="cycling"] .live-demo-bar-cycle,
.live-demo-bar[data-phase="accepted"] .live-demo-bar-accepted {
display: flex;
}
.live-demo-bar-slash {
font-family: var(--font-display);
font-size: 16px;
color: var(--color-accent);
padding: 0 8px 0 10px;
}
.live-demo-bar-btn {
display: inline-flex;
align-items: center;
gap: 6px;
padding: 7px 10px;
background: transparent;
border: 0;
border-radius: 8px;
color: oklch(75% 0 0);
font: inherit;
cursor: pointer;
}
.live-demo-bar-btn.is-active {
background: var(--color-accent-dim);
color: var(--color-accent);
}
.live-demo-bar-dmd {
display: inline-grid;
grid-template: repeat(2, 1fr) / repeat(2, 1fr);
width: 12px;
height: 12px;
border-radius: 3px;
overflow: hidden;
}
.live-demo-bar-dmd span:nth-child(1) { background: oklch(60% 0.25 350); }
.live-demo-bar-dmd span:nth-child(2) { background: oklch(60% 0.15 45); }
.live-demo-bar-dmd span:nth-child(3) { background: oklch(55% 0.12 250); }
.live-demo-bar-dmd span:nth-child(4) { background: oklch(30% 0 0); }
.live-demo-bar-cmd {
display: inline-flex;
align-items: center;
gap: 8px;
padding: 6px 12px;
background: var(--color-accent-dim);
color: var(--color-accent);
border-radius: 6px;
font-family: var(--font-mono);
font-size: 11px;
}
.live-demo-bar-cmd-label {
opacity: 0.7;
text-transform: uppercase;
font-size: 9px;
letter-spacing: 0.2em;
}
.live-demo-bar-cmd-name {
font-weight: 500;
letter-spacing: 0.05em;
}
.live-demo-bar-divider {
width: 1px;
height: 18px;
background: oklch(28% 0 0);
margin: 0 4px;
}
.live-demo-bar-input {
display: inline-flex;
align-items: center;
min-width: 140px;
font-family: var(--font-mono);
font-size: 11px;
color: oklch(85% 0 0);
padding: 0 4px;
}
.live-demo-bar-caret {
display: inline-block;
width: 6px;
height: 12px;
background: var(--color-accent);
margin-left: 2px;
animation: liveDemoCaret 1s steps(1) infinite;
}
@keyframes liveDemoCaret {
50% { opacity: 0; }
}
.live-demo-bar-go {
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.08em;
text-transform: uppercase;
padding: 7px 12px;
background: var(--color-accent);
color: white;
border: 0;
border-radius: 6px;
cursor: pointer;
margin-left: auto;
}
.live-demo-bar-generating {
padding: 0 14px !important;
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.08em;
color: oklch(85% 0 0);
}
.live-demo-bar-shader {
width: 14px;
height: 14px;
border-radius: 50%;
border: 1.5px solid oklch(35% 0 0);
border-top-color: var(--color-accent);
margin-right: 10px;
animation: liveDemoSpin 700ms linear infinite;
}
@keyframes liveDemoSpin {
to { transform: rotate(360deg); }
}
.live-demo-bar-counter {
font-family: var(--font-mono);
font-size: 11px;
color: oklch(92% 0 0);
padding: 0 8px;
min-width: 38px;
text-align: center;
}
.live-demo-bar-discard {
padding: 7px 10px;
background: transparent;
border: 0;
border-radius: 8px;
color: oklch(72% 0 0);
font-size: 13px;
cursor: pointer;
}
.live-demo-bar-accept {
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.08em;
text-transform: uppercase;
padding: 7px 14px;
background: var(--color-accent);
color: white;
border: 0;
border-radius: 6px;
cursor: pointer;
margin-left: 2px;
}
.live-demo-bar-accepted {
padding: 0 14px !important;
color: oklch(80% 0.15 145);
font-family: var(--font-body);
font-size: 12px;
gap: 8px !important;
}
/* Phase caption under the frame */
.live-demo-caption {
display: flex;
align-items: baseline;
gap: 10px;
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.12em;
text-transform: uppercase;
color: var(--color-ash);
}
.live-demo-caption::before {
content: "";
display: inline-block;
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--color-accent);
animation: liveDemoPulse 1.6s var(--ease-out) infinite;
}
@keyframes liveDemoPulse {
0%, 100% { opacity: 1; transform: scale(1); }
50% { opacity: 0.4; transform: scale(0.7); }
}
.live-demo-caption-label { color: var(--color-ink); }
/* Supporting row under the demo */
.live-demo-support {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: var(--spacing-lg);
padding-top: var(--spacing-md);
border-top: 1px solid var(--color-mist);
}
.live-demo-support-cell {
display: flex;
flex-direction: column;
gap: 4px;
}
.live-demo-support-k {
font-family: var(--font-mono);
font-size: 10px;
letter-spacing: 0.2em;
text-transform: uppercase;
color: var(--color-ash);
}
.live-demo-support-v {
font-family: var(--font-body);
font-size: 14px;
line-height: 1.45;
color: var(--color-ink);
}
@media (max-width: 760px) {
.live-demo-frame { aspect-ratio: 4 / 5; }
.live-demo-target { width: 90%; }
.live-demo-bar { font-size: 11px; min-height: 32px; }
.live-demo-support { grid-template-columns: 1fr; gap: var(--spacing-md); }
}
@media (prefers-reduced-motion: reduce) {
.live-demo-cursor,
.live-demo-outline,
.live-demo-variant,
.live-demo-annotations,
.live-demo-stroke path {
transition: none !important;
animation: none !important;
}
.live-demo-caption::before { animation: none; }
}
+143 -32
View File
@@ -60,7 +60,7 @@
<a href="/" data-nav="home" aria-current="page">Home</a>
<a href="/docs" data-nav="docs">Docs</a>
<a href="/anti-patterns" data-nav="anti-patterns">Anti-Patterns</a>
<a href="/visual-mode" data-nav="visual-mode">Visual Mode</a>
<a href="/visual-mode" data-nav="visual-mode">Overlay</a>
</nav>
<a href="https://github.com/pbakaus/impeccable" class="site-header-github" target="_blank" rel="noopener" aria-label="Impeccable on GitHub, 18k stars">
<svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z"/></svg>
@@ -76,7 +76,7 @@
<a href="#language" class="section-nav-item" data-section="language"><span class="section-nav-num">02</span><span class="section-nav-label">Language</span></a>
<a href="#antidote" class="section-nav-item" data-section="antidote"><span class="section-nav-num">03</span><span class="section-nav-label">Antidote</span></a>
<a href="#why" class="section-nav-item" data-section="why"><span class="section-nav-num">04</span><span class="section-nav-label">Why</span></a>
<a href="#visual-mode" class="section-nav-item" data-section="visual-mode"><span class="section-nav-num">05</span><span class="section-nav-label">Visual</span></a>
<a href="#live-mode" class="section-nav-item" data-section="live-mode"><span class="section-nav-num">05</span><span class="section-nav-label">Live</span></a>
<a href="#downloads" class="section-nav-item" data-section="downloads"><span class="section-nav-num">06</span><span class="section-nav-label">Install</span></a>
<a href="#changelog" class="section-nav-item" data-section="changelog"><span class="section-nav-num">07</span><span class="section-nav-label">New</span></a>
<a href="#faq" class="section-nav-item" data-section="faq"><span class="section-nav-num">08</span><span class="section-nav-label">FAQ</span></a>
@@ -529,42 +529,153 @@
</div>
</section>
<!-- 05. VISUAL MODE - Browser overlay -->
<section class="visual-mode-section" id="visual-mode">
<!-- 05. LIVE MODE - Interactive demo -->
<section class="live-section" id="live-mode">
<div class="section-header" data-reveal>
<span class="section-number">05</span>
<h2 class="section-title">Visual Mode</h2>
<h2 class="section-title">Live Mode</h2>
</div>
<div class="visual-mode-content">
<p class="section-lead" data-reveal>See design issues highlighted directly on the page. No screenshots, no guesswork. Impeccable&rsquo;s overlay shows you exactly what&rsquo;s wrong and where.</p>
<div class="live-content" data-reveal>
<p class="section-lead">Pick any element in the browser. Drop a comment or a stroke. Hit Go. Three production-quality variants swap in via your framework's HMR. Accept the one you want and it writes back to source.</p>
<div class="visual-mode-demo" data-reveal>
<div class="visual-mode-preview">
<div class="visual-mode-preview-header">
<span class="visual-mode-preview-dot red"></span>
<span class="visual-mode-preview-dot yellow"></span>
<span class="visual-mode-preview-dot green"></span>
<span class="visual-mode-preview-title">Live detection overlay</span>
<div class="live-demo" id="live-demo" aria-label="Live Mode interactive demo loop">
<div class="live-demo-frame">
<div class="live-demo-chrome">
<span class="live-demo-dot"></span>
<span class="live-demo-dot"></span>
<span class="live-demo-dot"></span>
<span class="live-demo-url">localhost:3000</span>
</div>
<iframe src="/antipattern-examples/visual-mode-demo.html" class="visual-mode-iframe" loading="lazy" title="Anti-pattern detection overlay demo"></iframe>
</div>
<div class="visual-mode-details">
<div class="visual-mode-feature">
<span class="visual-mode-feature-label">25 deterministic checks</span>
<p>No LLM needed. Pattern matching catches purple gradients, overused fonts, nested cards, low contrast, and more.</p>
</div>
<div class="visual-mode-feature">
<span class="visual-mode-feature-label">Two ways to use it</span>
<p>The <strong>Chrome extension</strong> on any site, or embedded in <code>/impeccable critique</code> during an AI design review.</p>
</div>
<a href="https://chromewebstore.google.com/detail/impeccable/bdkgmiklpdmaojlpflclinlofgjfpabf" class="detection-callout" target="_blank" rel="noopener">
<img src="assets/extension-detection.png" alt="Impeccable Chrome extension panel listing detected anti-patterns" class="detection-callout-image" loading="lazy" width="600" height="508">
<div class="detection-callout-inner">
<span class="detection-eyebrow">Available now</span>
<span class="detection-callout-title">Chrome extension</span>
<span class="detection-cmd">Install from Chrome Web Store &rarr;</span>
<div class="live-demo-stage">
<!-- Target element that gets picked + iterated -->
<div class="live-demo-target" data-demo-target>
<div class="live-demo-variant is-active" data-variant="original">
<div class="live-demo-card live-demo-card--plain">
<span class="live-demo-card-kicker">Newsletter</span>
<h3>Subscribe for updates</h3>
<p>Monthly-ish design notes.</p>
<button type="button">Subscribe</button>
</div>
</div>
<div class="live-demo-variant" data-variant="1">
<div class="live-demo-card live-demo-card--v1">
<span class="live-demo-card-kicker">No. 04</span>
<h3><em>Letters</em>, occasionally.</h3>
<p>A postcard from the editor, about once a month. No tracking pixels.</p>
<button type="button">Send me one</button>
</div>
</div>
<div class="live-demo-variant" data-variant="2">
<div class="live-demo-card live-demo-card--v2">
<span class="live-demo-card-kicker">☞ Subscribe</span>
<h3>Design dispatches, every other Thursday.</h3>
<p>Slow by design. Opinions included.</p>
<button type="button">Join the list →</button>
</div>
</div>
<div class="live-demo-variant" data-variant="3">
<div class="live-demo-card live-demo-card--v3">
<span class="live-demo-card-kicker">Field notes</span>
<h3><em>One letter.</em> One afternoon of reading. Once a month.</h3>
<p>For people who still open email for pleasure.</p>
<button type="button">Receive the letter</button>
</div>
</div>
</div>
</a>
<!-- Highlight rectangle that outlines the target -->
<div class="live-demo-outline" data-demo-outline aria-hidden="true"></div>
<!-- Annotation layer (stroke + comment) -->
<div class="live-demo-annotations" data-demo-annotations aria-hidden="true">
<svg class="live-demo-stroke" viewBox="0 0 300 60" preserveAspectRatio="none" aria-hidden="true">
<path d="M 10,40 Q 60,10 110,38 T 210,32 T 290,20" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" pathLength="1"/>
</svg>
<div class="live-demo-comment">more playful</div>
</div>
<!-- Simulated cursor -->
<div class="live-demo-cursor" data-demo-cursor aria-hidden="true">
<svg width="18" height="22" viewBox="0 0 18 22" fill="none">
<path d="M1 1 L1 17 L5 13 L8 20 L11 19 L7.5 12 L13 12 Z" fill="#111" stroke="#fff" stroke-width="1.2" stroke-linejoin="round"/>
</svg>
</div>
</div>
<!-- Picker bar at the bottom of the frame -->
<div class="live-demo-bar" data-demo-bar data-phase="idle">
<!-- IDLE state: /brand -->
<div class="live-demo-bar-idle">
<span class="live-demo-bar-slash">/</span>
<button type="button" class="live-demo-bar-btn is-active" data-demo-bar-btn="pick">
<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><line x1="22" y1="12" x2="18" y2="12"/><line x1="6" y1="12" x2="2" y2="12"/><line x1="12" y1="6" x2="12" y2="2"/><line x1="12" y1="22" x2="12" y2="18"/></svg>
<span>Pick</span>
</button>
<button type="button" class="live-demo-bar-btn">
<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg>
</button>
<button type="button" class="live-demo-bar-btn">
<span class="live-demo-bar-dmd" aria-hidden="true"><span></span><span></span><span></span><span></span></span>
</button>
</div>
<!-- CONFIGURING state: command picker + input + Go -->
<div class="live-demo-bar-config">
<span class="live-demo-bar-cmd" data-demo-cmd>
<span class="live-demo-bar-cmd-label">command</span>
<span class="live-demo-bar-cmd-name" data-demo-cmd-name>delight</span>
</span>
<span class="live-demo-bar-divider"></span>
<span class="live-demo-bar-input" data-demo-input>
<span data-demo-input-text></span><span class="live-demo-bar-caret"></span>
</span>
<button type="button" class="live-demo-bar-go" data-demo-go>Go <span aria-hidden="true"></span></button>
</div>
<!-- GENERATING state: shader/progress -->
<div class="live-demo-bar-generating">
<span class="live-demo-bar-shader"></span>
<span>Generating variants…</span>
</div>
<!-- CYCLING state: prev / counter / next / accept / discard -->
<div class="live-demo-bar-cycle">
<button type="button" class="live-demo-bar-btn" aria-label="Previous variant"></button>
<span class="live-demo-bar-counter" data-demo-counter>1 / 3</span>
<button type="button" class="live-demo-bar-btn" aria-label="Next variant"></button>
<span class="live-demo-bar-divider"></span>
<button type="button" class="live-demo-bar-discard" aria-label="Discard"></button>
<button type="button" class="live-demo-bar-accept" data-demo-accept>Accept</button>
</div>
<!-- ACCEPTED state: brief confirmation -->
<div class="live-demo-bar-accepted">
<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>
<span>Variant 3 written to source</span>
</div>
</div>
</div>
<!-- Phase label below the frame -->
<div class="live-demo-caption" data-demo-caption>
<span class="live-demo-caption-label" data-demo-caption-label>Hover an element to pick.</span>
</div>
</div>
<!-- Supporting text below the demo -->
<div class="live-demo-support">
<div class="live-demo-support-cell">
<span class="live-demo-support-k">Works on</span>
<span class="live-demo-support-v">Vite · Next.js · SvelteKit · Astro · Nuxt</span>
</div>
<div class="live-demo-support-cell">
<span class="live-demo-support-k">Accepts into</span>
<span class="live-demo-support-v">Your real source file, via HMR</span>
</div>
<div class="live-demo-support-cell">
<span class="live-demo-support-k">CSP-strict apps</span>
<span class="live-demo-support-v">One-time dev-only patch, with your consent</span>
</div>
</div>
</div>
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// Interactive Live Mode demo loop. Plays when the section is in view,
// pauses when out. Respects prefers-reduced-motion (freezes on a
// representative frame).
//
// Phases map to the `data-phase` attribute on the picker bar:
// idle → configuring → generating → cycling → accepted → (reset to idle)
const PHASE = {
IDLE: 'idle',
CONFIGURING: 'configuring',
GENERATING: 'generating',
CYCLING: 'cycling',
ACCEPTED: 'accepted',
};
// Each step describes one action + how long to hold before the next step.
// dt = delay BEFORE this step runs (ms). Total cycle ≈ sum of all dt.
const TIMELINE = [
{ dt: 400, action: 'cursor-show' },
{ dt: 400, action: 'cursor-to-target' },
{ dt: 900, action: 'outline-show', caption: 'Hover to pick.' },
{ dt: 500, action: 'cursor-click' },
{ dt: 200, action: 'open-config', caption: 'Picked. Choose a command.' },
{ dt: 700, action: 'cursor-to-cmd' },
{ dt: 400, action: 'set-command', cmd: 'delight', caption: 'delight — add personality.' },
{ dt: 500, action: 'cursor-to-input' },
{ dt: 300, action: 'type', text: 'more playful', caption: 'Annotate. Comment. Stroke.' },
{ dt: 1400, action: 'draw-stroke' },
{ dt: 700, action: 'cursor-to-go' },
{ dt: 300, action: 'click-go', caption: 'Generating three variants…' },
{ dt: 1600, action: 'show-variant', n: 1, caption: 'Variant 1 of 3.' },
{ dt: 1400, action: 'show-variant', n: 2, caption: 'Variant 2 of 3.' },
{ dt: 1400, action: 'show-variant', n: 3, caption: 'Variant 3 of 3.' },
{ dt: 900, action: 'cursor-to-accept' },
{ dt: 300, action: 'click-accept', caption: 'Accepted. Written to source.' },
{ dt: 1800, action: 'reset', caption: 'Hover to pick.' },
];
export function initLiveDemo() {
const root = document.getElementById('live-demo');
if (!root) return;
const stage = root.querySelector('.live-demo-stage');
const target = root.querySelector('[data-demo-target]');
const outline = root.querySelector('[data-demo-outline]');
const annotations = root.querySelector('[data-demo-annotations]');
const cursor = root.querySelector('[data-demo-cursor]');
const bar = root.querySelector('[data-demo-bar]');
const cmdName = root.querySelector('[data-demo-cmd-name]');
const inputText = root.querySelector('[data-demo-input-text]');
const counter = root.querySelector('[data-demo-counter]');
const captionLabel = root.querySelector('[data-demo-caption-label]');
const variants = Array.from(root.querySelectorAll('.live-demo-variant'));
if (!stage || !target || !bar) return;
const reduced = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
// Position outline over target whenever target moves.
const positionOutline = () => {
const stageRect = stage.getBoundingClientRect();
const targetRect = target.getBoundingClientRect();
outline.style.left = (targetRect.left - stageRect.left - 4) + 'px';
outline.style.top = (targetRect.top - stageRect.top - 4) + 'px';
outline.style.width = (targetRect.width + 8) + 'px';
outline.style.height = (targetRect.height + 8) + 'px';
};
// Move cursor to coordinates relative to the stage.
const moveCursor = (selector, offsetX = 0, offsetY = 0) => {
const stageRect = stage.getBoundingClientRect();
const el = typeof selector === 'string' ? root.querySelector(selector) : selector;
if (!el) return;
const rect = el.getBoundingClientRect();
const x = rect.left - stageRect.left + rect.width / 2 + offsetX;
const y = rect.top - stageRect.top + rect.height / 2 + offsetY;
cursor.style.transform = `translate(${x}px, ${y}px)`;
};
const showVariant = (n) => {
variants.forEach((v) => {
const match = (n === 0 && v.dataset.variant === 'original') || v.dataset.variant === String(n);
v.classList.toggle('is-active', match);
});
counter.textContent = n + ' / 3';
// Re-measure outline after layout settles.
requestAnimationFrame(positionOutline);
};
const reset = () => {
bar.dataset.phase = PHASE.IDLE;
cursor.classList.remove('is-visible', 'is-click');
outline.classList.remove('is-visible');
annotations.classList.remove('is-visible', 'is-comment-visible');
inputText.textContent = '';
cmdName.textContent = 'delight';
showVariant(0);
};
const setCaption = (text) => {
if (text) captionLabel.textContent = text;
};
const typeText = (text, duration) => new Promise((resolve) => {
inputText.textContent = '';
const per = Math.max(30, Math.floor(duration / text.length));
let i = 0;
const tick = () => {
if (i >= text.length) return resolve();
inputText.textContent += text[i++];
setTimeout(tick, per);
};
tick();
});
const step = async (s) => {
switch (s.action) {
case 'cursor-show':
moveCursor(target, -120, 40);
cursor.classList.add('is-visible');
break;
case 'cursor-to-target':
moveCursor(target);
break;
case 'outline-show':
positionOutline();
outline.classList.add('is-visible');
break;
case 'cursor-click':
cursor.classList.add('is-click');
setTimeout(() => cursor.classList.remove('is-click'), 260);
break;
case 'open-config':
bar.dataset.phase = PHASE.CONFIGURING;
break;
case 'cursor-to-cmd':
moveCursor(root.querySelector('[data-demo-cmd]'));
break;
case 'set-command':
cmdName.textContent = s.cmd;
break;
case 'cursor-to-input':
moveCursor(root.querySelector('[data-demo-input]'));
break;
case 'type':
await typeText(s.text, 700);
break;
case 'draw-stroke':
annotations.classList.add('is-visible');
setTimeout(() => annotations.classList.add('is-comment-visible'), 600);
break;
case 'cursor-to-go':
moveCursor(root.querySelector('[data-demo-go]'));
break;
case 'click-go':
cursor.classList.add('is-click');
setTimeout(() => cursor.classList.remove('is-click'), 260);
annotations.classList.remove('is-visible', 'is-comment-visible');
bar.dataset.phase = PHASE.GENERATING;
break;
case 'show-variant':
if (bar.dataset.phase !== PHASE.CYCLING) bar.dataset.phase = PHASE.CYCLING;
showVariant(s.n);
break;
case 'cursor-to-accept':
moveCursor(root.querySelector('[data-demo-accept]'));
break;
case 'click-accept':
cursor.classList.add('is-click');
setTimeout(() => cursor.classList.remove('is-click'), 260);
bar.dataset.phase = PHASE.ACCEPTED;
outline.classList.remove('is-visible');
break;
case 'reset':
reset();
break;
}
setCaption(s.caption);
};
let running = false;
let cancelToken = 0;
const sleep = (ms, token) => new Promise((resolve) => setTimeout(() => resolve(token === cancelToken), ms));
const run = async () => {
if (running) return;
running = true;
const myToken = ++cancelToken;
while (running && myToken === cancelToken) {
reset();
for (const s of TIMELINE) {
const stillMe = await sleep(s.dt, myToken);
if (!stillMe || !running) return;
await step(s);
}
}
};
const stop = () => {
running = false;
cancelToken++;
};
// Start/stop based on visibility.
if (reduced) {
// Freeze on the "cycling, variant 3" frame for a representative still.
bar.dataset.phase = PHASE.CYCLING;
showVariant(3);
counter.textContent = '3 / 3';
positionOutline();
outline.classList.add('is-visible');
setCaption('Three variants. Pick the one you want.');
return;
}
const io = new IntersectionObserver((entries) => {
entries.forEach((e) => {
if (e.isIntersecting) run();
else stop();
});
}, { threshold: 0.35 });
io.observe(root);
// Also re-measure outline on window resize since positions depend on layout.
window.addEventListener('resize', () => requestAnimationFrame(positionOutline));
}