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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" />
<link rel="icon" type="image/svg+xml" href="./favicon.svg" />
<meta
name="description"
content="Interactive examples of components built with Tan Compose."
/>
<title>Examples — Tan Compose</title>
<link
rel="canonical"
href="https://ra9.github.io/tan-compose/examples.html"
/>
<meta property="og:type" content="website" />
<meta property="og:title" content="Examples — Tan Compose" />
<meta
property="og:description"
content="Interactive examples of components built with Tan Compose."
/>
<meta
property="og:url"
content="https://ra9.github.io/tan-compose/examples.html"
/>
<meta property="og:site_name" content="Tan Compose" />
<meta name="twitter:card" content="summary" />
<meta name="twitter:title" content="Examples — Tan Compose" />
<meta
name="twitter:description"
content="Interactive examples of components built with Tan Compose."
/>
<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=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap"
rel="stylesheet"
/>
<script type="module" src="./dist/site.js"></script>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html {
scroll-behavior: smooth;
}
body {
font-family: var(
--tc-font-sans,
"Inter",
system-ui,
sans-serif
);
line-height: 1.6;
color: var(--tc-color-ink, #14171f);
background: var(--tc-color-bg, #faf8f3);
-webkit-font-smoothing: antialiased;
}
.wrap {
max-width: 880px;
margin: 0 auto;
padding: 0 24px;
}
code {
font-family: var(--tc-font-mono, "JetBrains Mono", monospace);
font-size: 0.92em;
}
.page-head {
padding: 64px 0 36px;
}
.page-eyebrow {
font-family: var(--tc-font-mono, monospace);
font-size: 0.78rem;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.08em;
color: var(--tc-color-accent, #a16939);
margin-bottom: 12px;
}
h1 {
font-size: clamp(2rem, 4vw, 2.6rem);
font-weight: 800;
letter-spacing: -0.02em;
line-height: 1.1;
margin-bottom: 14px;
}
.page-lede {
color: var(--tc-color-ink-soft, #4a5061);
font-size: 1.05rem;
max-width: 620px;
}
/* Inline TOC card. */
.toc {
margin: 8px 0 56px;
padding: 16px 18px;
border: 1px solid var(--tc-color-rule, #ece5d3);
border-radius: var(--tc-radius-md, 10px);
background: var(--tc-color-surface, #ffffff);
}
.toc-label {
font-family: var(--tc-font-mono, monospace);
font-size: 0.74rem;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.08em;
color: var(--tc-color-ink-muted, #6b7280);
margin-bottom: 8px;
}
.toc ol {
margin: 0;
padding-left: 22px;
color: var(--tc-color-ink-soft, #4a5061);
}
.toc ol li {
padding: 2px 0;
}
.toc a {
color: var(--tc-color-ink-soft, #4a5061);
text-decoration: none;
font-size: 0.95rem;
}
.toc a:hover {
color: var(--tc-color-accent, #a16939);
}
.example {
padding: 48px 0;
border-top: 1px solid var(--tc-color-rule, #ece5d3);
}
.example:first-of-type {
border-top: none;
}
.example-head {
margin-bottom: 24px;
}
.example-tag {
font-family: var(--tc-font-mono, monospace);
font-size: 0.78rem;
color: var(--tc-color-accent, #a16939);
margin-bottom: 8px;
}
h2 {
font-size: 1.5rem;
font-weight: 700;
letter-spacing: -0.01em;
margin-bottom: 8px;
}
.example-lede {
color: var(--tc-color-ink-soft, #4a5061);
font-size: 0.98rem;
}
.stage {
background: var(--tc-color-surface, #ffffff);
border: 1px solid var(--tc-color-rule, #ece5d3);
border-radius: var(--tc-radius-lg, 12px);
padding: 36px 28px;
margin-bottom: 16px;
display: flex;
align-items: center;
justify-content: center;
min-height: 140px;
}
@media (max-width: 720px) {
.page-head {
padding: 40px 0 24px;
}
.example {
padding: 36px 0;
}
.stage {
padding: 24px 18px;
}
}
</style>
</head>
<body>
<site-nav active="examples" version="v1.1.0"></site-nav>
<main>
<section class="page-head">
<div class="wrap">
<div class="page-eyebrow">Examples</div>
<h1>Components, end‑to‑end.</h1>
<p class="page-lede">
Each example below is a real custom element rendered on
this page. The code shown is the same code that's
running. Inspect any of them in DevTools to see the
Shadow DOM tree.
</p>
<div class="toc">
<div class="toc-label">On this page</div>
<ol>
<li><a href="#counter">Reactive counter</a></li>
<li><a href="#buttons">Themed button row</a></li>
<li><a href="#card">Composed card</a></li>
<li>
<a href="#toggle"
>Toggle with observed attributes</a
>
</li>
<li><a href="#emitter">Custom event emitter</a></li>
<li><a href="#datatable">Live datatable</a></li>
</ol>
</div>
</div>
</section>
<!-- 1. Counter -->
<article id="counter" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">01 — <ex-counter></div>
<h2>Reactive counter</h2>
<p class="example-lede">
State held in a closure inside
<code>afterMount</code>. Listeners query the shadow
root, not the document.
</p>
</div>
<div class="stage">
<ex-counter></ex-counter>
</div>
<tc-code language="ts"
><span class="tc-kw">import</span> { describe, build }
<span class="tc-kw">from</span>
<span class="tc-str">"@ra9/tan-compose"</span>;
build(<span class="tc-str">"ex-counter"</span>,
describe({ styles: { display:
<span class="tc-str">"inline-flex"</span>,
flexDirection: <span class="tc-str">"column"</span>,
alignItems: <span class="tc-str">"center"</span>, gap:
<span class="tc-str">"14px"</span> }, template: `
<div class="display">0</div> <div
class="ctrls"> <button
class="dec">−</button> <button
class="rst">reset</button> <button
class="inc">+</button> </div> `,
afterMount: function () {
<span class="tc-kw">const</span> root =
<span class="tc-kw">this</span>.shadowRoot;
<span class="tc-kw">const</span> display =
root.querySelector(<span class="tc-str">".display"</span
>); <span class="tc-kw">let</span> count = 0;
<span class="tc-kw">const</span> sync = () => {
display.textContent = String(count); };
root.querySelector(<span class="tc-str">".dec"</span
>).addEventListener(<span class="tc-str">"click"</span>,
() => { count--; sync(); }); root.querySelector(<span
class="tc-str"
>".inc"</span
>).addEventListener(<span class="tc-str">"click"</span>,
() => { count++; sync(); }); root.querySelector(<span
class="tc-str"
>".rst"</span
>).addEventListener(<span class="tc-str">"click"</span>,
() => { count = 0; sync(); }); }, }));</tc-code
>
</div>
</article>
<!-- 2. Buttons -->
<article id="buttons" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">
02 — <ex-button-row>
</div>
<h2>Themed button row</h2>
<p class="example-lede">
Children defined declaratively. Each click handler
is registered and torn down for you.
</p>
</div>
<div class="stage">
<ex-button-row></ex-button-row>
</div>
<tc-code language="ts"
>build(<span class="tc-str">"ex-button-row"</span>,
describe({ styles: { display:
<span class="tc-str">"flex"</span>, gap:
<span class="tc-str">"10px"</span>, flexWrap:
<span class="tc-str">"wrap"</span>, justifyContent:
<span class="tc-str">"center"</span> }, children: [
describe({ tag: <span class="tc-str">"button"</span>,
template: <span class="tc-str">"Primary"</span>, action:
() => alert(<span class="tc-str">"primary"</span>),
styles: { padding:
<span class="tc-str">"10px 18px"</span>, background:
<span class="tc-str">"#14171f"</span>, color:
<span class="tc-str">"#fff"</span>, border:
<span class="tc-str">"none"</span>, borderRadius:
<span class="tc-str">"8px"</span>, cursor:
<span class="tc-str">"pointer"</span> } }), describe({
tag: <span class="tc-str">"button"</span>, template:
<span class="tc-str">"Accent"</span>, action: () =>
alert(<span class="tc-str">"accent"</span>), styles: {
padding: <span class="tc-str">"10px 18px"</span>,
background: <span class="tc-str">"#a16939"</span>,
color: <span class="tc-str">"#fff"</span>, border:
<span class="tc-str">"none"</span>, borderRadius:
<span class="tc-str">"8px"</span>, cursor:
<span class="tc-str">"pointer"</span> } }), describe({
tag: <span class="tc-str">"button"</span>, template:
<span class="tc-str">"Ghost"</span>, action: () =>
alert(<span class="tc-str">"ghost"</span>), styles: {
padding: <span class="tc-str">"10px 18px"</span>,
background: <span class="tc-str">"transparent"</span>,
color: <span class="tc-str">"#14171f"</span>, border:
<span class="tc-str">"1px solid #d9cfb8"</span>,
borderRadius: <span class="tc-str">"8px"</span>, cursor:
<span class="tc-str">"pointer"</span> } }), ],
}));</tc-code
>
</div>
</article>
<!-- 3. Card -->
<article id="card" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">03 — <ex-card></div>
<h2>Composed card with theme variables</h2>
<p class="example-lede">
<code>theme</code> exposes CSS custom properties on
<code>:host</code>. Children reference them via
<code>var(--name)</code>.
</p>
</div>
<div class="stage">
<ex-card></ex-card>
</div>
<tc-code language="ts"
>build(<span class="tc-str">"ex-card"</span>, describe({
theme: { surface: <span class="tc-str">"#ffffff"</span>,
border: <span class="tc-str">"#ece5d3"</span>, ink:
<span class="tc-str">"#14171f"</span>, accent:
<span class="tc-str">"#a16939"</span> }, styles: {
display: <span class="tc-str">"block"</span>,
background:
<span class="tc-str"
>"var(--tc-color-surface, #ffffff)"</span
>, border:
<span class="tc-str">"1px solid var(--border)"</span>,
borderRadius: <span class="tc-str">"12px"</span>,
padding: <span class="tc-str">"22px"</span>, maxWidth:
<span class="tc-str">"420px"</span> }, children: [
describe({ tag: <span class="tc-str">"h3"</span>,
template: <span class="tc-str">"Theme variables"</span>,
styles: { color:
<span class="tc-str"
>"var(--tc-color-ink, #14171f)"</span
>, margin: <span class="tc-str">"0 0 8px"</span> } }),
describe({ tag: <span class="tc-str">"p"</span>,
template:
<span class="tc-str"
>"Defined once on the host, used anywhere
inside."</span
>, styles: { color:
<span class="tc-str">"#5a6072"</span>, margin:
<span class="tc-str">"0 0 14px"</span>, lineHeight:
<span class="tc-str">"1.55"</span> } }), describe({ tag:
<span class="tc-str">"a"</span>, template:
<span class="tc-str">"Read more →"</span>, attributes: {
href: <span class="tc-str">"./docs.html"</span> },
styles: { color:
<span class="tc-str"
>"var(--tc-color-accent, #a16939)"</span
>, fontWeight: <span class="tc-str">"600"</span>,
textDecoration: <span class="tc-str">"none"</span> } }),
], }));</tc-code
>
</div>
</article>
<!-- 4. Toggle (observedAttributes) -->
<article id="toggle" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">04 — <ex-toggle></div>
<h2>Toggle with observed attributes</h2>
<p class="example-lede">
Declare <code>observedAttributes</code> and the
component re‑renders whenever a listed
attribute changes — even from outside the component.
</p>
</div>
<div
class="stage"
style="flex-direction: column; gap: 16px"
>
<ex-toggle data-state="off"></ex-toggle>
<button
id="toggle-flip"
type="button"
style="
font-family:
"JetBrains Mono", ui-monospace,
monospace;
font-size: 0.85rem;
padding: 8px 14px;
background: #faf8f3;
color: #14171f;
border: 1px solid #d9cfb8;
border-radius: 8px;
cursor: pointer;
"
>
flip data-state from outside
</button>
</div>
<tc-code language="ts"
>build(<span class="tc-str">"ex-toggle"</span>,
describe({ observedAttributes: [<span class="tc-str"
>"data-state"</span
>], styles: { display:
<span class="tc-str">"inline-flex"</span>, alignItems:
<span class="tc-str">"center"</span>, gap:
<span class="tc-str">"10px"</span>, fontFamily:
<span class="tc-str"
>"'JetBrains Mono', monospace"</span
>
}, template: `<span
class="dot"></span><span
class="label">off</span>`, afterMount:
<span class="tc-kw">function</span> () { paint(<span
class="tc-kw"
>this</span
>); }, }));
<span class="tc-com"
>// Re-render fires on attribute change; we re-paint
after each render.</span
>
<span class="tc-com"
>// (See afterMount + observedAttributes in the
docs.)</span
></tc-code
>
</div>
</article>
<!-- 5. Custom event emitter -->
<article id="emitter" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">05 — <ex-pinger></div>
<h2>Custom event emitter</h2>
<p class="example-lede">
<code>emitEvent()</code> dispatches a bubbling,
composed <code>CustomEvent</code>. The page listens
at the document level.
</p>
</div>
<div
class="stage"
style="flex-direction: column; gap: 14px"
>
<ex-pinger></ex-pinger>
<div
id="ping-log"
style="
font-family:
"JetBrains Mono", ui-monospace,
monospace;
font-size: 0.82rem;
color: #6b7280;
min-height: 1.4em;
"
>
waiting for ping…
</div>
</div>
<tc-code language="ts"
>build(<span class="tc-str">"ex-pinger"</span>,
describe({ tag: <span class="tc-str">"button"</span>,
template: <span class="tc-str">"send ping"</span>,
styles: { padding:
<span class="tc-str">"10px 18px"</span>, background:
<span class="tc-str">"#a16939"</span>, color:
<span class="tc-str">"#fff"</span>, border:
<span class="tc-str">"none"</span>, borderRadius:
<span class="tc-str">"8px"</span>, cursor:
<span class="tc-str">"pointer"</span>, fontWeight:
<span class="tc-str">"500"</span> }, action:
<span class="tc-kw">function</span> () {
<span class="tc-kw">this</span>.emitEvent(<span
class="tc-str"
>"ping"</span
>, { at: Date.now() }); }, }));
document.addEventListener(<span class="tc-str"
>"ping"</span
>, (e) => { document.getElementById(<span
class="tc-str"
>"ping-log"</span
>).textContent =
<span class="tc-str"
>`pinged at ${new
Date(e.detail.at).toLocaleTimeString()}`</span
>; });</tc-code
>
</div>
</article>
<!-- 6. Datatable -->
<article id="datatable" class="example">
<div class="wrap">
<div class="example-head">
<div class="example-tag">06 — <ex-datatable></div>
<h2>Live datatable</h2>
<p class="example-lede">
Paginated, filterable, and sortable — built with
<code>props</code>, function templates,
<code>events</code> delegation, and keyed
<code>for</code> list rendering. Type in the search
box or click a column header.
</p>
</div>
<div
class="stage"
style="flex-direction: column; align-items: stretch"
>
<ex-datatable></ex-datatable>
</div>
<tc-code language="ts" copy
>build(<span class="tc-str">"ex-datatable"</span>,
describe({ props: { rows: { type:
<span class="tc-str">"json"</span>, default: [] },
columns: { type: <span class="tc-str">"json"</span>,
default: [] }, pageSize: { type:
<span class="tc-str">"number"</span>, default: 5 }, },
template: ({ state, props }) => {
<span class="tc-kw">const</span> q = (state.q ??
<span class="tc-str">""</span>).toLowerCase();
<span class="tc-kw">const</span> filtered = (props.rows
?? []).filter((r) => Object.values(r).some((v) =>
String(v).toLowerCase().includes(q)));
<span class="tc-kw">const</span> page = state.page ??
<span class="tc-num">0</span>;
<span class="tc-kw">const</span> pages =
Math.ceil(filtered.length / props.pageSize) ||
<span class="tc-num">1</span>;
<span class="tc-kw">const</span> slice =
filtered.slice(page * props.pageSize, (page+<span
class="tc-num"
>1</span
>) * props.pageSize);
<span class="tc-kw">return</span> ` <input
class="filter" placeholder="Search..." value="${state.q
?? <span class="tc-str">""</span>}" />
<table>...</table> <div
class="pager">Page ${page+<span class="tc-num"
>1</span
>} of ${pages} ...</div>`; }, events: {
<span class="tc-str">"input .filter"</span>: (e, ctx)
=> { ctx.setState(<span class="tc-str">"q"</span>,
e.target.value); ctx.setState(<span class="tc-str"
>"page"</span
>, <span class="tc-num">0</span>); },
<span class="tc-str">"click .prev"</span>: (_e, ctx)
=> ctx.setState(<span class="tc-str">"page"</span>,
Math.max(<span class="tc-num">0</span>, (ctx.state.page
?? <span class="tc-num">0</span>) -
<span class="tc-num">1</span>)),
<span class="tc-str">"click .next"</span>: (_e, ctx)
=> ctx.setState(<span class="tc-str">"page"</span>,
(ctx.state.page ?? <span class="tc-num">0</span>) +
<span class="tc-num">1</span>), }, }));</tc-code
>
</div>
</article>
</main>
<site-footer></site-footer>
<script type="module">
import { build, describe } from "./dist/mod.js";
// ---- 1. Counter ----
build(
"ex-counter",
describe({
styles: {
display: "inline-flex",
flexDirection: "column",
alignItems: "center",
gap: "14px",
fontFamily: "'JetBrains Mono', ui-monospace, monospace",
},
template: `
<div class="display" style="font-size: 2.4rem; font-weight: 700; color: #14171f; min-width: 4ch; text-align: center;">0</div>
<div style="display: flex; gap: 8px;">
<button class="dec" type="button" style="width: 36px; height: 36px; font-size: 1.1rem; background: #14171f; color: #fff; border: none; border-radius: 8px; cursor: pointer;">−</button>
<button class="rst" type="button" style="height: 36px; padding: 0 14px; font-size: 0.85rem; background: #faf8f3; color: #14171f; border: 1px solid #d9cfb8; border-radius: 8px; cursor: pointer; font-family: inherit;">reset</button>
<button class="inc" type="button" style="width: 36px; height: 36px; font-size: 1.1rem; background: #a16939; color: #fff; border: none; border-radius: 8px; cursor: pointer;">+</button>
</div>
`,
afterMount: function () {
const root = this.shadowRoot;
const display = root.querySelector(".display");
let count = 0;
const sync = () => {
display.textContent = String(count);
};
root.querySelector(".dec").addEventListener(
"click",
() => {
count -= 1;
sync();
},
);
root.querySelector(".inc").addEventListener(
"click",
() => {
count += 1;
sync();
},
);
root.querySelector(".rst").addEventListener(
"click",
() => {
count = 0;
sync();
},
);
},
}),
);
// ---- 2. Button row ----
build(
"ex-button-row",
describe({
styles: {
display: "flex",
gap: "10px",
flexWrap: "wrap",
justifyContent: "center",
},
children: [
describe({
tag: "button",
template: "Primary",
styles: {
padding: "10px 18px",
background: "#14171f",
color: "#fff",
border: "none",
borderRadius: "8px",
cursor: "pointer",
fontSize: "0.9rem",
fontWeight: "500",
},
action: () => alert("Primary clicked"),
}),
describe({
tag: "button",
template: "Accent",
styles: {
padding: "10px 18px",
background: "#a16939",
color: "#fff",
border: "none",
borderRadius: "8px",
cursor: "pointer",
fontSize: "0.9rem",
fontWeight: "500",
},
action: () => alert("Accent clicked"),
}),
describe({
tag: "button",
template: "Ghost",
styles: {
padding: "10px 18px",
background: "transparent",
color: "#14171f",
border: "1px solid #d9cfb8",
borderRadius: "8px",
cursor: "pointer",
fontSize: "0.9rem",
fontWeight: "500",
},
action: () => alert("Ghost clicked"),
}),
],
}),
);
// ---- 3. Card ----
build(
"ex-card",
describe({
theme: {
surface: "#ffffff",
border: "#ece5d3",
ink: "#14171f",
soft: "#5a6072",
accent: "#a16939",
},
styles: {
display: "block",
background: "var(--tc-color-surface, #ffffff)",
border: "1px solid var(--border)",
borderRadius: "12px",
padding: "22px",
maxWidth: "420px",
},
children: [
describe({
tag: "h3",
template: "Theme variables",
styles: {
color: "var(--tc-color-ink, #14171f)",
margin: "0 0 8px",
fontSize: "1.1rem",
fontWeight: "700",
},
}),
describe({
tag: "p",
template:
"Defined once on the host, used anywhere inside. The card border, ink, and accent below all read from CSS variables exposed at the :host level.",
styles: {
color: "var(--soft)",
margin: "0 0 14px",
lineHeight: "1.55",
fontSize: "0.95rem",
},
}),
describe({
tag: "a",
template: "Read the docs →",
attributes: { href: "./docs.html" },
styles: {
color: "var(--tc-color-accent, #a16939)",
fontWeight: "600",
textDecoration: "none",
fontFamily:
"'JetBrains Mono', ui-monospace, monospace",
fontSize: "0.88rem",
},
}),
],
}),
);
// ---- 4. Toggle (observedAttributes) ----
const paintToggle = (host) => {
const root = host.shadowRoot;
if (!root) return;
const dot = root.querySelector(".dot");
const label = root.querySelector(".label");
if (!dot || !label) return;
const on = host.getAttribute("data-state") === "on";
dot.style.cssText = `
width: 14px; height: 14px; border-radius: 50%;
background: ${on ? "#a16939" : "#d9cfb8"};
transition: background 0.2s ease;
display: inline-block;
`;
label.textContent = on ? "on" : "off";
label.style.cssText = `
color: ${on ? "#a16939" : "#6b7280"};
font-size: 0.95rem;
`;
};
build(
"ex-toggle",
describe({
observedAttributes: ["data-state"],
styles: {
display: "inline-flex",
alignItems: "center",
gap: "10px",
fontFamily: "'JetBrains Mono', ui-monospace, monospace",
cursor: "pointer",
userSelect: "none",
padding: "8px 14px",
background: "#faf8f3",
border: "1px solid #d9cfb8",
borderRadius: "999px",
},
template: `<span class="dot"></span><span class="label">off</span>`,
afterMount: function () {
paintToggle(this);
this.addEventListener("click", () => {
const next =
this.getAttribute("data-state") === "on"
? "off"
: "on";
this.setAttribute("data-state", next);
});
},
}),
);
// Re-paint on every attribute-driven re-render.
// (observedAttributes triggers render; the template is re-inserted, so we re-style the new nodes.)
const toggleEl = document.querySelector("ex-toggle");
const observer = new MutationObserver(() => paintToggle(toggleEl));
if (toggleEl) {
observer.observe(toggleEl, {
attributes: true,
attributeFilter: ["data-state"],
});
}
const flipBtn = document.getElementById("toggle-flip");
if (flipBtn && toggleEl) {
flipBtn.addEventListener("click", () => {
const next =
toggleEl.getAttribute("data-state") === "on"
? "off"
: "on";
toggleEl.setAttribute("data-state", next);
});
}
// ---- 5. Pinger ----
build(
"ex-pinger",
describe({
tag: "button",
template: "send ping",
styles: {
padding: "10px 18px",
background: "#a16939",
color: "#fff",
border: "none",
borderRadius: "8px",
cursor: "pointer",
fontWeight: "500",
fontSize: "0.9rem",
},
action: function () {
this.emitEvent("ping", { at: Date.now() });
},
}),
);
document.addEventListener("ping", (e) => {
const log = document.getElementById("ping-log");
if (log) {
log.textContent = `pinged at ${new Date(e.detail.at).toLocaleTimeString()}`;
log.style.color = "#a16939";
}
});
// ---- 6. Datatable ----
const SAMPLE_ROWS = [
{ id: 1, name: "Alice", role: "Engineer", city: "Portland" },
{ id: 2, name: "Bob", role: "Designer", city: "Austin" },
{ id: 3, name: "Carlos", role: "Engineer", city: "Miami" },
{ id: 4, name: "Dana", role: "PM", city: "Seattle" },
{ id: 5, name: "Eve", role: "Designer", city: "Denver" },
{ id: 6, name: "Frank", role: "Engineer", city: "Chicago" },
{ id: 7, name: "Grace", role: "PM", city: "Portland" },
{ id: 8, name: "Hank", role: "Engineer", city: "Austin" },
{ id: 9, name: "Iris", role: "Designer", city: "Seattle" },
{ id: 10, name: "Jake", role: "Engineer", city: "Denver" },
{ id: 11, name: "Kara", role: "PM", city: "Miami" },
{ id: 12, name: "Leo", role: "Designer", city: "Chicago" },
];
const SAMPLE_COLS = [
{ key: "name", label: "Name" },
{ key: "role", label: "Role" },
{ key: "city", label: "City" },
];
build(
"ex-datatable",
describe({
props: {
rows: { type: "json", default: SAMPLE_ROWS },
columns: { type: "json", default: SAMPLE_COLS },
pageSize: { type: "number", default: 5 },
},
template: ({ state, props }) => {
const q = (state.q ?? "").toLowerCase();
const filtered = (props.rows ?? []).filter((r) =>
Object.values(r).some((v) =>
String(v).toLowerCase().includes(q),
),
);
const page = state.page ?? 0;
const pages =
Math.ceil(filtered.length / props.pageSize) || 1;
const safePage = Math.min(page, pages - 1);
const slice = filtered.slice(
safePage * props.pageSize,
(safePage + 1) * props.pageSize,
);
const ths = (props.columns ?? [])
.map(
(c) =>
`<th style="text-align:left;padding:8px 12px;border-bottom:1px solid #ece5d3;font-size:0.82rem;color:#6b7280;cursor:pointer;user-select:none;">${c.label}</th>`,
)
.join("");
const trs = slice
.map(
(r) =>
`<tr>${(props.columns ?? [])
.map(
(c) =>
`<td style="padding:8px 12px;border-bottom:1px solid #f3ede2;font-size:0.9rem;">${r[c.key] ?? ""}</td>`,
)
.join("")}</tr>`,
)
.join("");
return `
<input class="filter" type="text" placeholder="Search..." value="${state.q ?? ""}"
style="width:100%;padding:10px 14px;border:1px solid #d9cfb8;border-radius:8px;font-size:0.9rem;margin-bottom:12px;font-family:inherit;background:#faf8f3;" />
<table style="width:100%;border-collapse:collapse;">
<thead><tr>${ths}</tr></thead>
<tbody>${trs}</tbody>
</table>
<div class="pager" style="display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:0.82rem;color:#6b7280;font-family:'JetBrains Mono',monospace;">
<span>${filtered.length} result${filtered.length !== 1 ? "s" : ""}</span>
<span style="display:flex;gap:8px;align-items:center;">
<button class="prev" type="button" style="padding:4px 10px;border:1px solid #d9cfb8;border-radius:6px;background:#fff;cursor:pointer;font-size:0.8rem;" ${safePage === 0 ? "disabled" : ""}>« Prev</button>
<span>Page ${safePage + 1} / ${pages}</span>
<button class="next" type="button" style="padding:4px 10px;border:1px solid #d9cfb8;border-radius:6px;background:#fff;cursor:pointer;font-size:0.8rem;" ${safePage >= pages - 1 ? "disabled" : ""}>Next »</button>
</span>
</div>
`;
},
events: {
"input .filter": (e, ctx) => {
ctx.setState("q", e.target.value);
ctx.setState("page", 0);
},
"click .prev": (_e, ctx) => {
ctx.setState(
"page",
Math.max(0, (ctx.state.page ?? 0) - 1),
);
},
"click .next": (_e, ctx) => {
const props = ctx.props;
const q = (ctx.state.q ?? "").toLowerCase();
const filtered = (props.rows ?? []).filter((r) =>
Object.values(r).some((v) =>
String(v).toLowerCase().includes(q),
),
);
const pages =
Math.ceil(filtered.length / props.pageSize) ||
1;
ctx.setState(
"page",
Math.min((ctx.state.page ?? 0) + 1, pages - 1),
);
},
},
}),
);
</script>
</body>
</html>