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1224 lines (1187 loc) · 56.5 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>wcstack — What if the browser had these built in?</title>
<meta name="description" content="A thought experiment turned into code. 41 zero-dependency packages: reactive binding, declarative routing, 30+ Web APIs as HTML tags, and in-page devtools — no framework required.">
<meta property="og:title" content="wcstack — What if the browser had these built in?">
<meta property="og:description" content="A thought experiment turned into code. 41 zero-dependency packages: reactive binding, declarative routing, 30+ Web APIs as HTML tags, and in-page devtools — no framework required.">
<meta property="og:type" content="website">
<meta property="og:url" content="https://wcstack.github.io">
<meta property="og:site_name" content="wcstack">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="wcstack — What if the browser had these built in?">
<meta name="twitter:description" content="A thought experiment turned into code. 41 zero-dependency packages: reactive binding, declarative routing, 30+ Web APIs as HTML tags, and in-page devtools — no framework required.">
<meta name="keywords" content="wcstack, Web Components, Custom Elements, Shadow DOM, reactive state, data binding, SPA router, declarative HTML, zero dependency, buildless, Web API">
<link rel="canonical" href="https://wcstack.github.io/">
<link rel="sitemap" type="application/xml" href="https://wcstack.github.io/sitemap.xml">
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@graph": [
{
"@type": "WebSite",
"@id": "https://wcstack.github.io/#website",
"url": "https://wcstack.github.io/",
"name": "wcstack",
"description": "Standards-first, zero-dependency Web Components packages: reactive binding, declarative routing, and 30+ Web APIs as HTML tags.",
"inLanguage": "en"
},
{
"@type": "SoftwareApplication",
"name": "wcstack",
"alternateName": "Web Components Stack",
"applicationCategory": "DeveloperApplication",
"operatingSystem": "Any (modern web browser)",
"description": "A monorepo of 41 zero-dependency Web Components packages — reactive state binding, declarative SPA routing, and 30+ Web APIs exposed as plain HTML custom elements. Standards-first, buildless, no framework required.",
"url": "https://wcstack.github.io/",
"codeRepository": "https://github.com/wcstack/wcstack",
"license": "https://github.com/wcstack/wcstack/blob/main/LICENSE",
"author": { "@type": "Person", "name": "mogera551" },
"offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }
}
]
}
</script>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
<style>
/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
--bg: #060a10;
--bg-card: #0c121a;
--bg-code: #080d14;
--border: #182230;
--border-subtle: #101823;
--text: #d3d9e0;
--text-bright: #f7fafc;
--text-dim: #6f7d8e;
--accent: #38bdf8;
--accent-glow: rgba(56, 189, 248, .12);
--accent-hover: #6dd2fc;
--c-cyan: #38bdf8;
--c-violet: #a78bfa;
--c-green: #5bb98c;
--c-salmon: #d48872;
--c-gold: #d4a017;
--font: 'Space Grotesk', system-ui, -apple-system, sans-serif;
--mono: 'JetBrains Mono', 'Fira Code', monospace;
}
html { scroll-behavior: smooth; }
body {
font-family: var(--font);
background: var(--bg);
color: var(--text);
line-height: 1.7;
-webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-hover); }
code, pre { font-family: var(--mono); }
/* ── Layout ── */
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
section { padding: 100px 0; }
/* ── Header ── */
header {
position: fixed; top: 0; left: 0; right: 0; z-index: 100;
background: rgba(6, 10, 16, .9);
backdrop-filter: blur(12px);
border-bottom: 1px solid var(--border-subtle);
}
header .container {
display: flex; align-items: center; justify-content: space-between;
height: 56px;
}
.logo {
font-size: 1.1rem; font-weight: 700; letter-spacing: -.02em;
color: var(--text-dim);
}
.logo span { color: var(--accent); }
nav { display: flex; gap: 22px; }
nav a {
font-size: .8rem; font-weight: 500;
color: var(--text-dim); transition: color .2s;
letter-spacing: .02em;
}
nav a:hover { color: var(--text); }
/* ── Hero ── */
.hero {
padding-top: 180px; padding-bottom: 110px;
text-align: center;
background:
radial-gradient(ellipse 60% 40% at 50% 0%, var(--accent-glow), transparent 70%);
}
.hero h1 {
font-size: clamp(2.2rem, 5.5vw, 3.5rem);
font-weight: 700; letter-spacing: -.03em;
line-height: 1.2;
color: var(--text-bright);
}
.hero h1 em {
font-style: normal;
color: var(--accent);
}
.hero .subtitle {
margin-top: 28px;
font-size: clamp(1rem, 2vw, 1.15rem);
color: var(--text-dim);
max-width: 660px; margin-left: auto; margin-right: auto;
line-height: 1.8;
}
.hero .subtitle-ja {
margin-top: 12px;
font-size: .88rem;
color: var(--text-dim);
opacity: .5;
}
.release-pill {
display: inline-flex; align-items: center; gap: 8px;
padding: 5px 14px; border-radius: 999px;
border: 1px solid var(--border);
background: var(--bg-card);
font-family: var(--mono);
font-size: .74rem; font-weight: 500;
color: var(--text-dim);
margin-bottom: 28px;
transition: border-color .2s, color .2s;
}
.release-pill:hover { border-color: rgba(56,189,248,.35); color: var(--text); }
.release-pill .dot {
width: 6px; height: 6px; border-radius: 50%;
background: var(--c-green);
box-shadow: 0 0 8px rgba(91,185,140,.7);
}
.hero .stats {
display: flex; gap: 0; justify-content: center;
margin-top: 44px; flex-wrap: wrap;
}
.stat {
padding: 0 32px;
border-left: 1px solid var(--border);
}
.stat:first-child { border-left: none; }
.stat .num {
font-size: 1.7rem; font-weight: 700; letter-spacing: -.02em;
color: var(--accent);
line-height: 1.3;
}
.stat .label {
font-size: .72rem; font-weight: 500;
color: var(--text-dim);
letter-spacing: .06em; text-transform: uppercase;
}
.hero .cta-group {
display: flex; gap: 16px; justify-content: center;
margin-top: 44px; flex-wrap: wrap;
}
.btn {
display: inline-flex; align-items: center; gap: 8px;
padding: 10px 24px; border-radius: 6px;
font-size: .88rem; font-weight: 600;
transition: all .2s;
cursor: pointer; border: none;
font-family: var(--font);
}
.btn-primary {
background: var(--accent); color: var(--bg);
}
.btn-primary:hover { background: var(--accent-hover); color: var(--bg); }
.btn-secondary {
background: transparent; color: var(--text-dim);
border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--text-dim); color: var(--text); }
/* ── Section shared ── */
.section-label {
font-size: .7rem; font-weight: 600; text-transform: uppercase;
letter-spacing: .15em; color: var(--accent); margin-bottom: 16px;
}
.section-title {
font-size: clamp(1.5rem, 3.5vw, 2rem);
font-weight: 700; letter-spacing: -.02em;
color: var(--text-bright);
}
.section-sub {
color: var(--text-dim); margin-top: 8px; font-size: .9rem;
}
.section-sub-ja {
color: var(--text-dim); margin-top: 4px; font-size: .82rem;
opacity: .5;
}
/* ── Topics (What's New) ── */
.topics { border-top: 1px solid var(--border-subtle); }
.topics-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 20px; margin-top: 48px;
}
.topic-card {
position: relative;
padding: 28px 24px;
border-radius: 10px;
border: 1px solid var(--border);
background: var(--bg-card);
transition: border-color .3s;
}
.topic-card:hover { border-color: rgba(56, 189, 248, .35); }
.topic-ver {
position: absolute; top: 20px; right: 20px;
font-family: var(--mono);
font-size: .68rem; font-weight: 500;
padding: 2px 8px; border-radius: 999px;
border: 1px solid var(--border);
color: var(--text-dim);
background: var(--bg-code);
}
.topic-card .tag-name { padding-right: 64px; }
/* ── Insight ── */
.insight { border-top: 1px solid var(--border-subtle); }
.insight-body {
margin-top: 32px;
font-size: .95rem;
color: var(--text);
line-height: 1.9;
max-width: 760px;
}
.insight-body strong { color: var(--text-bright); }
.insight-body code {
font-size: .82em;
background: var(--bg-code);
border: 1px solid var(--border-subtle);
border-radius: 4px;
padding: 2px 6px;
color: var(--accent);
}
.insight-ja {
margin-top: 14px;
font-size: .84rem;
color: var(--text-dim);
opacity: .55;
line-height: 1.8;
max-width: 760px;
}
.insight-diagram {
margin-top: 36px;
border: 1px solid var(--border);
border-radius: 10px;
background: var(--bg-code);
padding: 28px 32px;
overflow-x: auto;
}
.insight-diagram pre {
padding: 0; background: none;
font-size: .85rem; line-height: 2.1;
overflow: visible;
}
.insight-diagram .layer { color: var(--text-bright); font-weight: 500; }
.insight-diagram .path { color: var(--accent); }
.insight-diagram .note { color: var(--text-dim); }
/* ── Core packages ── */
.core-section { border-top: 1px solid var(--border-subtle); }
.tag-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
gap: 20px; margin-top: 48px;
}
.tag-card {
padding: 28px 24px;
border-radius: 10px;
border: 1px solid var(--border);
background: var(--bg-card);
transition: border-color .3s;
}
.tag-card:hover {
border-color: rgba(56, 189, 248, .35);
}
.tag-name {
font-family: var(--mono);
font-size: .82rem; font-weight: 500;
color: var(--accent);
margin-bottom: 12px;
display: block;
}
.tag-card h3 {
font-size: 1.05rem; font-weight: 600;
color: var(--text-bright);
margin-bottom: 8px;
}
.tag-card .what-if {
font-size: .85rem;
color: var(--text-dim);
font-style: italic;
margin-bottom: 10px;
}
.tag-card p {
font-size: .85rem; color: var(--text-dim); line-height: 1.6;
}
.tag-card .ja {
font-size: .78rem; color: var(--text-dim); opacity: .5;
margin-top: 6px;
}
.card-link {
display: inline-block;
margin-top: 16px;
font-size: .78rem; font-weight: 600;
letter-spacing: .02em;
}
.tag-features {
list-style: none; margin-top: 14px;
display: flex; flex-wrap: wrap; gap: 6px;
}
.tag-features li {
font-size: .7rem; font-weight: 500;
padding: 3px 8px; border-radius: 4px;
border: 1px solid var(--border);
color: var(--text-dim);
}
/* ── Web API nodes ── */
.io-section { border-top: 1px solid var(--border-subtle); }
.io-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
gap: 10px; margin-top: 44px;
}
.io-node {
padding: 14px 16px;
border-radius: 8px;
border: 1px solid var(--border-subtle);
background: var(--bg-card);
transition: border-color .25s;
}
.io-node:hover { border-color: rgba(56, 189, 248, .35); }
.io-node .io-tag {
font-family: var(--mono);
font-size: .74rem; font-weight: 500;
color: var(--accent);
display: block;
white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.io-node .io-desc {
font-size: .72rem; color: var(--text-dim);
margin-top: 3px; line-height: 1.5;
display: block;
}
.protocol-note {
margin-top: 36px;
border: 1px solid var(--border);
border-left: 3px solid var(--accent);
border-radius: 8px;
background: var(--bg-card);
padding: 22px 26px;
}
.protocol-note h3 {
font-size: .92rem; font-weight: 600; color: var(--text-bright);
margin-bottom: 8px;
}
.protocol-note h3 code {
font-size: .85em; color: var(--accent);
background: var(--bg-code); border: 1px solid var(--border-subtle);
border-radius: 4px; padding: 2px 6px;
}
.protocol-note p {
font-size: .84rem; color: var(--text-dim); line-height: 1.7;
}
.protocol-note .ja {
font-size: .78rem; opacity: .5; margin-top: 6px;
}
/* ── Code Examples ── */
.code-section { border-top: 1px solid var(--border-subtle); }
.code-tabs {
display: flex; gap: 0; margin-top: 40px;
border-bottom: 1px solid var(--border);
overflow-x: auto;
}
.code-tab {
padding: 10px 20px; cursor: pointer;
font-size: .8rem; font-weight: 500;
color: var(--text-dim); background: none; border: none;
border-bottom: 2px solid transparent;
transition: all .2s;
font-family: var(--font);
letter-spacing: .02em;
white-space: nowrap;
}
.code-tab:hover { color: var(--text); }
.code-tab.active {
color: var(--accent);
border-bottom-color: var(--accent);
}
.code-panels { position: relative; }
.code-panel {
display: none;
border: 1px solid var(--border);
border-top: none;
border-radius: 0 0 10px 10px;
overflow: hidden;
}
.code-panel.active { display: block; }
.code-header {
display: flex; align-items: center; justify-content: space-between;
padding: 10px 20px;
background: rgba(12, 18, 26, .8);
border-bottom: 1px solid var(--border);
font-size: .75rem; color: var(--text-dim);
}
.code-header .filename { font-family: var(--mono); font-weight: 500; }
pre {
padding: 20px 24px;
background: var(--bg-code);
overflow-x: auto;
font-size: .82rem;
line-height: 1.7;
tab-size: 2;
}
/* Syntax highlight */
code[class*="language-"], pre[class*="language-"] { color: var(--text); text-shadow: none; background: none; }
pre > code[class*="language-"] { padding: 0; }
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #45566b; font-style: italic; }
.token.punctuation { color: #566b84; }
.token.tag { color: #38bdf8; }
.token.attr-name { color: #a78bfa; }
.token.attr-value { color: #5bb98c; }
.token.string { color: #5bb98c; }
.token.keyword { color: #d48872; }
.token.function { color: #d4a017; }
.token.number, .token.boolean { color: #d48872; }
.token.operator { color: #566b84; }
.token.property { color: #d3d9e0; }
/* ── Rules ── */
.rules { border-top: 1px solid var(--border-subtle); }
.rules-list {
margin-top: 48px;
display: flex; flex-direction: column;
gap: 1px;
background: var(--border-subtle);
border-radius: 10px;
overflow: hidden;
}
.rule {
display: grid;
grid-template-columns: 48px 1fr;
gap: 20px;
padding: 24px 28px;
background: var(--bg-card);
align-items: start;
}
.rule-num {
width: 36px; height: 36px;
display: flex; align-items: center; justify-content: center;
border-radius: 8px;
font-size: .85rem; font-weight: 700;
flex-shrink: 0;
}
.rule h3 {
font-size: 1rem; font-weight: 600;
color: var(--text-bright);
margin-bottom: 4px;
}
.rule p {
font-size: .85rem; color: var(--text-dim); line-height: 1.6;
}
.rule .ja {
font-size: .78rem; color: var(--text-dim); opacity: .5;
margin-top: 2px;
}
.rules-epilogue {
margin-top: 40px;
font-size: .92rem;
color: var(--text-dim);
line-height: 1.8;
max-width: 720px;
}
.rules-epilogue-ja {
margin-top: 12px;
font-size: .82rem;
color: var(--text-dim);
opacity: .5;
line-height: 1.7;
}
/* ── Quick Start ── */
.quickstart { border-top: 1px solid var(--border-subtle); }
.cdn-block {
margin-top: 40px;
border: 1px solid var(--border);
border-radius: 10px;
overflow: hidden;
}
.cdn-note {
margin-top: 16px;
font-size: .85rem;
color: var(--text-dim);
}
.cdn-note-ja {
font-size: .78rem;
color: var(--text-dim);
opacity: .5;
margin-top: 4px;
}
.tooling-note {
margin-top: 32px;
display: flex; gap: 14px; align-items: flex-start;
border: 1px solid var(--border);
border-radius: 8px;
background: var(--bg-card);
padding: 18px 22px;
}
.tooling-note svg { flex-shrink: 0; margin-top: 3px; color: var(--accent); }
.tooling-note p { font-size: .84rem; color: var(--text-dim); line-height: 1.7; }
.tooling-note .ja { font-size: .78rem; opacity: .5; margin-top: 4px; }
/* ── Footer ── */
footer {
border-top: 1px solid var(--border-subtle);
padding: 40px 0;
text-align: center;
}
footer p { font-size: .8rem; color: var(--text-dim); }
.footer-links {
display: flex; gap: 24px; justify-content: center;
margin-bottom: 16px; flex-wrap: wrap;
}
.footer-links a {
font-size: .8rem; font-weight: 500;
color: var(--text-dim);
}
.footer-links a:hover { color: var(--text); }
/* ── Animations ── */
.fade-in {
opacity: 0; transform: translateY(16px);
transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible {
opacity: 1; transform: translateY(0);
}
/* ── Responsive ── */
@media (max-width: 768px) {
section { padding: 72px 0; }
.hero { padding-top: 140px; padding-bottom: 80px; }
nav { gap: 14px; }
nav a { font-size: .74rem; }
.stat { padding: 0 18px; }
.stat .num { font-size: 1.4rem; }
.rule { grid-template-columns: 40px 1fr; padding: 20px; gap: 14px; }
.code-tab { padding: 8px 12px; font-size: .75rem; }
pre { font-size: .76rem; padding: 16px; }
}
@media (max-width: 560px) {
nav { display: none; }
.hero h1 { font-size: 1.8rem; }
.stats { row-gap: 16px; }
.stat { border-left: none; padding: 0 14px; }
.rule { grid-template-columns: 1fr; }
.rule-num { margin-bottom: 4px; }
}
</style>
</head>
<body>
<!-- Header -->
<header>
<div class="container">
<div class="logo"><<span>wc</span>stack /></div>
<nav>
<a href="#topics">What's New</a>
<a href="#insight">Insight</a>
<a href="#core">Core</a>
<a href="#webapis">Web APIs</a>
<a href="#examples">Examples</a>
<a href="#rules">Rules</a>
<a href="#quickstart">Quick Start</a>
<a href="https://github.com/wcstack/wcstack" target="_blank" rel="noopener">GitHub</a>
</nav>
</div>
</header>
<!-- Hero -->
<section class="hero">
<div class="container">
<a class="release-pill" href="https://github.com/wcstack/wcstack/releases" target="_blank" rel="noopener"><span class="dot"></span>Latest release: v1.22.6</a>
<h1>What if the browser<br>had <em>these</em> built in?</h1>
<p class="subtitle">wcstack is a thought experiment turned into code. We imagine what future web standards <em>could</em> look like — reactive data binding, declarative routing, and thirty-plus Web APIs as plain HTML tags — and build them as if they already existed in the browser.</p>
<p class="subtitle-ja">未来のWeb標準を想像し、それがすでにブラウザに存在するかのようにコードにする思考実験。30以上のWeb APIをHTMLタグに。</p>
<div class="stats">
<div class="stat">
<div class="num">41</div>
<div class="label">Packages</div>
</div>
<div class="stat">
<div class="num">30+</div>
<div class="label">Web API Tags</div>
</div>
<div class="stat">
<div class="num">0</div>
<div class="label">Dependencies</div>
</div>
<div class="stat">
<div class="num">1</div>
<div class="label">Script Tag Each</div>
</div>
</div>
<div class="cta-group">
<a class="btn btn-primary" href="#quickstart">Get Started</a>
<a class="btn btn-secondary" href="https://github.com/wcstack/wcstack" target="_blank" rel="noopener">
<svg width="16" height="16" viewBox="0 0 16 16" fill="currentColor"><path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z"/></svg>
View on GitHub
</a>
</div>
</div>
</section>
<!-- What's New / Topics -->
<section class="topics" id="topics">
<div class="container">
<p class="section-label">What's New</p>
<h2 class="section-title">Shipped in v1.22.0 → v1.22.6</h2>
<p class="section-sub">Four refinements that make buildless apps easier to verify and harder to break.</p>
<p class="section-sub-ja">ビルドレスなアプリを、より検証しやすく、より壊れにくくする4つの進化。</p>
<div class="topics-grid fade-in">
<div class="topic-card">
<span class="topic-ver">v1.22.1</span>
<span class="tag-name">@wcstack/lint</span>
<h3>Contracts, checked from the CLI</h3>
<p class="what-if">What if buildless did not mean validation-less?</p>
<p>Run <code>npx @wcstack/lint index.html</code> with no install or project setup. The standalone validator checks <code>data-wcs</code> syntax, state paths, filters, I/O-node members, command and event tokens, sidecar manifests, and document-level requirements. Stable <code>wcs/*</code> codes and precise source ranges work in English or Japanese.</p>
<p class="ja">インストールもプロジェクト設定もなく、<code>npx @wcstack/lint index.html</code>で検証。<code>data-wcs</code>構文、状態パス、フィルタ、I/Oノード契約、コマンド／イベントトークン、サイドカーマニフェストまで、安定した診断コードと正確な位置情報で確認できる。</p>
<ul class="tag-features">
<li>Zero-install CLI</li>
<li>Stable wcs/* Codes</li>
<li>ja / en Messages</li>
<li>CI-ready Exit Codes</li>
</ul>
</div>
<div class="topic-card">
<span class="topic-ver">v1.22.3</span>
<span class="tag-name">wcs/* diagnostics</span>
<h3>Stale state gets a warning</h3>
<p class="what-if">What if the linter caught writes the reactive runtime cannot see?</p>
<p>Mutating <code>this.items</code> with <code>push</code>, <code>splice</code>, or <code>sort</code>, assigning <code>this.items[0]</code>, and writing through <code>this.user.name</code> now produce actionable diagnostics. The fix is shown in place: reassign an immutable array or use a reactive path such as <code>this["items.0"]</code>.</p>
<p class="ja"><code>push</code>／<code>splice</code>／<code>sort</code>、<code>this.items[0]</code>への代入、<code>this.user.name</code>経由の書き込みなど、リアクティブ更新が追跡できない操作を検出。新しい配列の再代入や<code>this["items.0"]</code>のような正しい修正方法もその場で提示する。</p>
<ul class="tag-features">
<li>Array Mutations</li>
<li>Index Assignments</li>
<li>Nested Writes</li>
<li>Actionable Fixes</li>
</ul>
</div>
<div class="topic-card">
<span class="topic-ver">v1.22.5 → v1.22.6</span>
<span class="tag-name">for / if</span>
<h3>Structural rendering holds its order</h3>
<p class="what-if">What if incremental DOM updates stayed boringly predictable?</p>
<p>Re-applying a still-true <code>if</code> no longer rotates multi-node content, and a <code>for</code> row ending in a nested structural directive now moves as one closed DOM range. Sequential appends and reorders preserve visual order, including wrapper-free <code>for > if</code> and <code>for > for</code> templates.</p>
<p class="ja">真のまま再評価された<code>if</code>で複数ノードの順序が回転する問題と、構造ディレクティブで終わる<code>for</code>行の範囲が途中で切れる問題を修正。ラッパーのない<code>for > if</code>や<code>for > for</code>でも、逐次追加と並べ替えの表示順を保つ。</p>
<ul class="tag-features">
<li>Idempotent Remounts</li>
<li>Closed Row Ranges</li>
<li>Stable Appends</li>
<li>Correct Reorders</li>
</ul>
</div>
<div class="topic-card">
<span class="topic-ver">v1.22.6</span>
<span class="tag-name">#init=element</span>
<h3>Initial authority, made explicit</h3>
<p class="what-if">What if the element could win the first sync without winning forever?</p>
<p><code>value#init=element</code> is now the canonical pattern when an element owns the real initial value. It prevents persisted storage from being clobbered and captures monitor snapshots that fired before binding attached. Authority applies only to initial sync; later state writes continue to flow normally.</p>
<p class="ja">要素が本当の初期値を持つ場合の正解を<code>value#init=element</code>に統一。永続ストレージの上書きを防ぎ、バインド前に発火したモニターの初期スナップショットも取り込む。要素側の権威は初期同期だけで、その後の状態更新は通常どおり流れる。</p>
<ul class="tag-features">
<li>No Storage Clobber</li>
<li>No Missed Snapshot</li>
<li>Initial-only Authority</li>
<li>Explicit Semantics</li>
</ul>
</div>
</div>
</div>
</section>
<!-- The Core Insight -->
<section class="insight" id="insight">
<div class="container">
<p class="section-label">The Core Insight</p>
<h2 class="section-title">The only contract is a path string</h2>
<p class="section-sub">No hooks. No imports. No glue code.</p>
<p class="section-sub-ja">フックなし。インポートなし。グルーコードなし。</p>
<div class="insight-body fade-in">
<p>In every existing framework, the <strong>component</strong> is where UI meets state. Even with external stores, you still write glue code inside the component to pull state in. State and UI always couple through JavaScript.</p>
<p style="margin-top:14px">wcstack takes a different path. Literally. The <strong>only</strong> contract between UI and state is a <strong>path string</strong> — <code>user.name</code>, <code>cart.items.*.subtotal</code>, <code>@shared</code>. The component's JavaScript doesn't contain a single line that references state. The HTML alone describes every data dependency — the same idea as a REST URL: a simple string contract, no shared code.</p>
</div>
<div class="insight-diagram fade-in">
<pre><span class="layer">State</span> <span class="note">←</span> <span class="path">"user.name"</span> <span class="note">→</span> <span class="layer">UI</span> <span class="note">Path binds the two layers</span>
<span class="layer">Comp A</span> <span class="note">←</span> <span class="path">"@app"</span> <span class="note">→</span> <span class="layer">Comp B</span> <span class="note">Named path crosses components</span>
<span class="layer">Loop</span> <span class="note">←</span> <span class="path">"items.*"</span> <span class="note">→</span> <span class="layer">Template</span> <span class="note">Wildcard abstracts the index</span></pre>
</div>
<p class="insight-ja fade-in">UIと状態を結ぶ唯一の契約はパス文字列。UIを作り直しても状態に触れなくていい。状態をリファクタリングしてもDOMに触れなくていい。HTMLを読めばすべてが分かる。</p>
</div>
</section>
<!-- Core Packages -->
<section class="core-section" id="core">
<div class="container">
<p class="section-label">The Core</p>
<h2 class="section-title">HTML tags that should exist</h2>
<p class="section-sub">What's missing from the browser — and what we built.</p>
<p class="section-sub-ja">ブラウザに足りないもの — そして我々が作ったもの。</p>
<div class="tag-grid fade-in">
<div class="tag-card">
<span class="tag-name"><wcs-state></span>
<h3>Reactive State</h3>
<p class="what-if">What if HTML had built-in reactive data binding?</p>
<p>Reactive state with Mustache syntax, path getters for computed properties, 40+ built-in filters, two-way binding, and structural directives — no virtual DOM.</p>
<p class="ja">Mustache構文、パスゲッター、40以上のビルトインフィルタ、双方向バインディング、構造ディレクティブ対応のリアクティブ状態管理。</p>
<ul class="tag-features">
<li>Mustache Syntax</li>
<li>Path Getters</li>
<li>40+ Filters</li>
<li>Two-way Binding</li>
<li>for / if / else</li>
</ul>
<a class="card-link" href="state/">Learn more →</a>
</div>
<div class="tag-card">
<span class="tag-name"><wcs-router></span>
<h3>Declarative Router</h3>
<p class="what-if">What if you could define SPA routes directly in HTML?</p>
<p>Define routes with nested layouts, typed URL parameters (<code>:id(int)</code>), route guards, and per-route <code><head></code> management. Built on the Navigation API.</p>
<p class="ja">ネストレイアウト、型付きURLパラメータ、ルートガード、ルート別head管理を備えた宣言的ルーティング。</p>
<ul class="tag-features">
<li>Nested Routes</li>
<li>Typed Params</li>
<li>Layouts</li>
<li>Route Guards</li>
<li>Head Management</li>
</ul>
</div>
<div class="tag-card">
<span class="tag-name"><wcs-autoloader></span>
<h3>Component Autoloader</h3>
<p class="what-if">What if the browser could auto-import components just by seeing their tags?</p>
<p>Detects custom elements in the DOM and dynamically imports them via Import Maps. Supports eager & lazy loading with MutationObserver for dynamically added elements.</p>
<p class="ja">DOMのカスタム要素を検出し、Import Mapsで動的インポート。Eager/Lazy読み込みとMutationObserverに対応。</p>
<ul class="tag-features">
<li>Import Maps</li>
<li>Eager / Lazy</li>
<li>MutationObserver</li>
<li>Pluggable Loaders</li>
</ul>
</div>
<div class="tag-card">
<span class="tag-name">@wcstack/signals</span>
<h3>Signals Core</h3>
<p class="what-if">What if TC39 signals were already here — and drove the same tags?</p>
<p>A fine-grained reactive core — <code>signal</code> / <code>computed</code> / <code>effect</code>, async resources, keyed <code>For</code> / <code>Index</code> — the JS-first counterpart to <code><wcs-state></code>, driving the same bindable tags.</p>
<p class="ja">signal / computed / effect、非同期resource、キー付きFor/Indexを備えたシグナルベースのリアクティブコア。stateのJSファースト版。</p>
<ul class="tag-features">
<li>TC39-shaped</li>
<li>Async Resources</li>
<li>Keyed For / Index</li>
<li>bindNode Adapter</li>
</ul>
<a class="card-link" href="signals/">Learn more →</a>
</div>
<div class="tag-card">
<span class="tag-name">@wcstack/server</span>
<h3>Server-Side Rendering</h3>
<p class="what-if">What if your templates rendered on the server — unchanged?</p>
<p>Same HTML, server-rendered. Add <code>enable-ssr</code>, call <code>renderToString()</code>, done. Automatic hydration with zero flicker, and version-safe fallback to CSR.</p>
<p class="ja">同じHTMLをサーバーでレンダリング。enable-ssrを付けてrenderToString()を呼ぶだけ。ゼロフリッカーの自動ハイドレーション付き。</p>
<ul class="tag-features">
<li>Drop-in SSR</li>
<li>Auto Hydration</li>
<li>Zero Flicker</li>
<li>CSR Fallback</li>
</ul>
</div>
<div class="tag-card">
<span class="tag-name"><wcs-fetch></span>
<h3>Fetch as a Tag</h3>
<p class="what-if">What if fetch was a tag?</p>
<p>Declarative HTTP as a headless component. Bind a URL, get data — URL changes automatically re-fetch. htmx-like HTML replace mode, and a headless core that runs in Node.js, Deno, and Workers.</p>
<p class="ja">宣言的HTTP通信。URLをバインドすればデータが届く。URL変更で自動再フェッチ。htmxライクなHTML置換モードも。</p>
<ul class="tag-features">
<li>URL Observation</li>
<li>Trigger Property</li>
<li>HTML Replace</li>
<li>Headless Core</li>
</ul>
</div>
</div>
</div>
</section>
<!-- Web APIs as tags -->
<section class="io-section" id="webapis">
<div class="container">
<p class="section-label">The I/O Nodes</p>
<h2 class="section-title">What if every Web API was a tag?</h2>
<p class="section-sub">Thirty-plus declarative wrappers over the Web platform — each one a headless custom element that binds straight into your state.</p>
<p class="section-sub-ja">Webプラットフォームの30以上のAPIを宣言的タグ化。すべてヘッドレスなカスタム要素として、状態に直接バインドされる。</p>
<div class="io-grid fade-in">
<div class="io-node"><span class="io-tag"><wcs-fetch></span><span class="io-desc">HTTP requests, auto re-fetch</span></div>
<div class="io-node"><span class="io-tag"><wcs-storage></span><span class="io-desc">localStorage / sessionStorage sync</span></div>
<div class="io-node"><span class="io-tag"><wcs-upload></span><span class="io-desc">File upload with progress</span></div>
<div class="io-node"><span class="io-tag"><wcs-ws></span><span class="io-desc">WebSocket real-time comms</span></div>
<div class="io-node"><span class="io-tag"><wcs-sse></span><span class="io-desc">Server-Sent Events streaming</span></div>
<div class="io-node"><span class="io-tag"><wcs-broadcast></span><span class="io-desc">Cross-tab messaging</span></div>
<div class="io-node"><span class="io-tag"><wcs-worker></span><span class="io-desc">Web Worker offloading</span></div>
<div class="io-node"><span class="io-tag"><wcs-timer></span><span class="io-desc">Ticks, elapsed time, polling</span></div>
<div class="io-node"><span class="io-tag"><wcs-raf></span><span class="io-desc">Frame ticks with dt, tab-aware</span></div>
<div class="io-node"><span class="io-tag"><wcs-debounce> <wcs-throttle></span><span class="io-desc">Value & signal coalescing</span></div>
<div class="io-node"><span class="io-tag"><wcs-clipboard></span><span class="io-desc">Clipboard read / write / monitor</span></div>
<div class="io-node"><span class="io-tag"><wcs-geo></span><span class="io-desc">Geolocation, live permission</span></div>
<div class="io-node"><span class="io-tag"><wcs-permission></span><span class="io-desc">Permissions API monitor</span></div>
<div class="io-node"><span class="io-tag"><wcs-notify></span><span class="io-desc">Desktop notifications</span></div>
<div class="io-node"><span class="io-tag"><wcs-intersect></span><span class="io-desc">Visibility, lazy-load, scrollspy</span></div>
<div class="io-node"><span class="io-tag"><wcs-resize></span><span class="io-desc">Element size observation</span></div>
<div class="io-node"><span class="io-tag"><wcs-wakelock></span><span class="io-desc">Screen Wake Lock</span></div>
<div class="io-node"><span class="io-tag"><wcs-camera> <wcs-recorder></span><span class="io-desc">Camera capture & recording</span></div>
<div class="io-node"><span class="io-tag"><wcs-speak> <wcs-listen></span><span class="io-desc">Speech synthesis & recognition</span></div>
<div class="io-node"><span class="io-tag"><wcs-defined></span><span class="io-desc">Custom-element readiness gate</span></div>
<div class="io-node"><span class="io-tag"><wcs-fullscreen></span><span class="io-desc">Fullscreen API</span></div>
<div class="io-node"><span class="io-tag"><wcs-pip></span><span class="io-desc">Picture-in-Picture</span></div>
<div class="io-node"><span class="io-tag"><wcs-pointer-lock></span><span class="io-desc">Pointer Lock for games / canvas</span></div>
<div class="io-node"><span class="io-tag"><wcs-screen-orientation></span><span class="io-desc">Orientation monitor & lock</span></div>
<div class="io-node"><span class="io-tag"><wcs-idle></span><span class="io-desc">Idle Detection</span></div>
<div class="io-node"><span class="io-tag"><wcs-network></span><span class="io-desc">Network Information monitor</span></div>
<div class="io-node"><span class="io-tag"><wcs-share></span><span class="io-desc">Web Share sheet</span></div>
<div class="io-node"><span class="io-tag"><wcs-contacts></span><span class="io-desc">Contact Picker</span></div>
<div class="io-node"><span class="io-tag"><wcs-credential></span><span class="io-desc">Credential Management</span></div>
<div class="io-node"><span class="io-tag"><wcs-eyedropper></span><span class="io-desc">EyeDropper color picker</span></div>
<div class="io-node"><span class="io-tag"><wcs-tilt></span><span class="io-desc">Device Orientation, iOS-safe</span></div>
<div class="io-node"><span class="io-tag"><wcs-accelerometer> <wcs-gyroscope></span><span class="io-desc">Motion sensors (x / y / z)</span></div>
<div class="io-node"><span class="io-tag"><wcs-magnetometer> <wcs-ambient-light-sensor></span><span class="io-desc">Magnetic field & illuminance</span></div>
</div>
<div class="protocol-note fade-in">
<h3>One protocol behind them all: <code>wc-bindable</code></h3>
<p>Every I/O node exposes a static manifest — observable <em>properties</em>, settable <em>inputs</em>, invocable <em>commands</em> — so any binding core can discover and wire it generically. <a href="state/"><code><wcs-state></code></a> and <a href="signals/"><code>@wcstack/signals</code></a> speak it natively; thin adapters connect React, Vue, Svelte, and Solid.</p>
<p class="ja">すべてのI/Oノードは静的マニフェスト(properties / inputs / commands)を公開。stateとsignalsはネイティブ対応、薄いアダプタでReact / Vue / Svelte / Solidからも使える。</p>
</div>
</div>
</section>
<!-- Code Examples -->
<section class="code-section" id="examples">
<div class="container">
<p class="section-label">See it in action</p>
<h2 class="section-title">Code that reads like HTML</h2>
<p class="section-sub">Because it <em>is</em> HTML.</p>
<p class="section-sub-ja">HTMLのように読める。なぜなら、HTMLだから。</p>
<div class="code-tabs" role="tablist">
<button class="code-tab active" data-tab="state" role="tab">State</button>
<button class="code-tab" data-tab="router" role="tab">Router</button>
<button class="code-tab" data-tab="fetch" role="tab">Fetch</button>
<button class="code-tab" data-tab="streams" role="tab">Streams</button>
<button class="code-tab" data-tab="ssr" role="tab">SSR</button>
<button class="code-tab" data-tab="autoloader" role="tab">Autoloader</button>
</div>
<div class="code-panels">
<!-- State -->
<div class="code-panel active" id="panel-state">
<div class="code-header">
<span class="filename">index.html</span>
<span>State</span>
</div>
<pre><code class="language-html"><wcs-state>
<script type="module">
export default {
taxRate: 0.1,
cart: {
items: [
{ name: "Widget", price: 500, quantity: 2 },
{ name: "Gadget", price: 1200, quantity: 1 }
]
},
removeItem(event, index) {
this["cart.items"] = this["cart.items"].toSpliced(index, 1);
},
get "cart.items.*.subtotal"() {
return this["cart.items.*.price"] * this["cart.items.*.quantity"];
},
get "cart.total"() {
return this.$getAll("cart.items.*.subtotal", [])
.reduce((a, b) => a + b, 0);
},
get "cart.grandTotal"() {
return this["cart.total"] * (1 + this.taxRate);
}
};
</script>
</wcs-state>
<template data-wcs="for: cart.items">
<div>
{{ .name }} &times;
<input type="number" data-wcs="value: .quantity">
= <span data-wcs="textContent: .subtotal|locale"></span>
<button data-wcs="onclick: removeItem">Delete</button>
</div>
</template>
<p>Grand Total: <span data-wcs="textContent: cart.grandTotal|locale(ja-JP)"></span></p>
<!-- Filters transform VALUES only. An event handler never takes a filter.
BAD: data-wcs="onkeydown: addTodo|enter" <- no such filter exists
GOOD: data-wcs="onkeydown: addTodo" <- inspect event.key in the method
Mutating state in place is not reactive either.
BAD: this.cart.items.push(x)
GOOD: this["cart.items"] = [...this["cart.items"], x] --></code></pre>
</div>
<!-- Router -->
<div class="code-panel" id="panel-router">
<div class="code-header">
<span class="filename">index.html</span>
<span>Router</span>
</div>
<pre><code class="language-html"><wcs-router>
<template>
<wcs-route path="/">
<wcs-layout layout="main-layout">
<nav slot="header">
<wcs-link to="/">Home</wcs-link>
<wcs-link to="/products">Products</wcs-link>
</nav>
<wcs-route index>
<wcs-head><title>Home</title></wcs-head>
<app-home></app-home>
</wcs-route>
<wcs-route path="products">
<wcs-route path=":id(int)">
<product-detail data-bind="props"></product-detail>
</wcs-route>
</wcs-route>
</wcs-layout>
</wcs-route>
<wcs-route fallback>
<error-404></error-404>
</wcs-route>
</template>
</wcs-router>
<wcs-outlet></wcs-outlet></code></pre>
</div>
<!-- Fetch -->
<div class="code-panel" id="panel-fetch">
<div class="code-header">
<span class="filename">index.html</span>
<span>Fetch</span>
</div>
<pre><code class="language-html"><wcs-state>
<script type="module">
export default {
users: [],
loading: false,
filterRole: "",
get usersUrl() {
const role = this.filterRole;
return role ? "/api/users?role=" + role : "/api/users";
},
};
</script>
</wcs-state>
<!-- URL changes automatically trigger re-fetch -->
<wcs-fetch data-wcs="url: usersUrl; value: users; loading: loading"></wcs-fetch>
<template data-wcs="if: loading">
<p>Loading...</p>