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Nikita Sivukhin
272
bindings/javascript/examples/browser/index.html
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272
bindings/javascript/examples/browser/index.html
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>Brutal DB Viewer</title>
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<style>
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:root {
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--fg: #000;
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--bg: #fff;
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}
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* {
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box-sizing: border-box;
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}
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html,
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body {
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margin: 0 10%;
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padding: 0;
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background: var(--bg);
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color: var(--fg);
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font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
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}
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header {
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border-bottom: 2px solid #000;
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padding: 12px 16px;
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font-weight: 700;
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letter-spacing: .03em;
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text-transform: uppercase;
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}
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main {
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padding: 16px;
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display: grid;
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gap: 12px;
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}
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label {
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display: block;
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margin-bottom: 6px;
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}
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textarea {
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width: 100%;
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min-height: 128px;
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max-height: 60vh;
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resize: vertical;
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border: 1px solid #000;
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padding: 8px;
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background: #fff;
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color: #000;
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}
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.controls {
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display: flex;
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align-items: center;
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gap: 8px;
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margin-top: 8px;
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}
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button {
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appearance: none;
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background: #fff;
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color: #000;
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border: 1px solid #000;
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padding: 6px 10px;
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cursor: pointer;
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font: inherit;
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}
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button:hover {
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transform: translate(-1px, -1px);
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box-shadow: 2px 2px 0 #000;
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}
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button:active {
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transform: translate(0, 0);
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box-shadow: none;
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}
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.status {
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margin-left: auto;
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opacity: .9;
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}
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#result {
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border-top: 2px solid #000;
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padding-top: 12px;
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}
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.meta {
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margin-bottom: 8px;
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}
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.error {
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border: 1px solid #000;
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padding: 8px;
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margin-bottom: 8px;
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white-space: pre-wrap;
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}
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.table-wrap {
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overflow: auto;
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border: 1px solid #000;
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max-height: 65vh;
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}
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table {
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width: 100%;
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border-collapse: collapse;
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}
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thead th {
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position: sticky;
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top: 0;
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background: #fff;
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}
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th,
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td {
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border: 1px solid #000;
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padding: 6px 8px;
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vertical-align: top;
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white-space: pre;
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}
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.sr-only {
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position: absolute;
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width: 1px;
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height: 1px;
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padding: 0;
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margin: -1px;
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overflow: hidden;
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clip: rect(0, 0, 0, 0);
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border: 0;
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}
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</style>
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</head>
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<body>
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<header>DB Viewer</header>
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<main>
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<section>
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<label for="sql">Query</label>
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<textarea id="sql" spellcheck="false" placeholder="SELECT * FROM people;">SELECT 'hello, world';</textarea>
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<div class="controls">
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<button id="run" type="button" title="Run (Ctrl/⌘ + Enter)">Run</button>
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<div class="status" id="status">Ready</div>
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</div>
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<div class="sr-only" aria-live="polite" id="live"></div>
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</section>
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<section id="result">
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<div class="meta" id="meta">No results yet.</div>
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<div id="error" class="error" hidden></div>
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<div class="table-wrap">
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<table id="table" role="table" aria-label="Query results">
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<thead></thead>
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<tbody></tbody>
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</table>
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</div>
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</section>
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</main>
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<script type="module">
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import { connect } from "@tursodatabase/database-browser";
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const db = await connect('data.db');
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// --- Wire your DB here --------------------------------------------------
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// Provide window.executeQuery = async (sql) => ({ columns: string[], rows: any[][] })
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// If not provided, a tiny mock dataset is used for demo purposes.
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(function () {
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const $ = (sel) => document.querySelector(sel);
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const sqlEl = $('#sql');
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const runBtn = $('#run');
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const statusEl = $('#status');
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const liveEl = $('#live');
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const metaEl = $('#meta');
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const errEl = $('#error');
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const thead = $('#table thead');
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const tbody = $('#table tbody');
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function fmt(v) {
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if (v === null || v === undefined) return 'NULL';
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if (typeof v === 'object') {
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try { return JSON.stringify(v); } catch { return String(v); }
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}
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return String(v);
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}
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function clearTable() { thead.innerHTML = ''; tbody.innerHTML = ''; }
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function renderTable(result) {
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clearTable();
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const { columns = [], rows = [] } = result || {};
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// Header
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const trh = document.createElement('tr');
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for (const name of columns) {
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const th = document.createElement('th');
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th.textContent = String(name);
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trh.appendChild(th);
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}
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thead.appendChild(trh);
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// Body
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const frag = document.createDocumentFragment();
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for (const r of rows) {
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const tr = document.createElement('tr');
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for (let i = 0; i < columns.length; i++) {
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const td = document.createElement('td');
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td.textContent = fmt(r[i] ?? null);
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tr.appendChild(td);
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}
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frag.appendChild(tr);
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}
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tbody.appendChild(frag);
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metaEl.textContent = rows.length
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? `${rows.length} row${rows.length === 1 ? '' : 's'} × ${columns.length} column${columns.length === 1 ? '' : 's'}`
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: 'No rows.';
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}
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async function run(sql) {
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// errEl.hidden = true; errEl.textContent = '';
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// statusEl.textContent = 'Running…';
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let t0 = performance.now();
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try {
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for (let i = 0; i < 1; i++) {
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await db.pingSync();
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}
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const res = {};
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// const stmt = await scheduler.postTask(async () => await db.prepare(sql), { priority: 'user-blocking' });
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// const columns = await scheduler.postTask(async () => (await stmt.columns()).map(x => x.name), { priority: 'user-blocking' });
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// const rows = await scheduler.postTask(async () => await stmt.all(), { priority: 'user-blocking' });
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// const res = {
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// columns: columns,
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// rows: rows.map(r => columns.map(c => r[c]))
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// };
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const t1 = performance.now();
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renderTable(res);
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const took = Math.max(0, t1 - t0);
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statusEl.textContent = `OK (${took}ms)`;
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liveEl.textContent = `Query finished in ${took} milliseconds.`;
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} catch (e) {
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clearTable();
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statusEl.textContent = 'ERROR';
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const msg = (e && (e.message || e.toString())) || 'Unknown error';
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errEl.textContent = 'ERROR: ' + msg;
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errEl.hidden = false;
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liveEl.textContent = 'Query failed.';
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}
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}
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runBtn.addEventListener('click', () => run(sqlEl.value));
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sqlEl.addEventListener('keydown', (e) => {
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if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
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e.preventDefault();
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run(sqlEl.value);
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}
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});
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// Initial demo run
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run(sqlEl.value);
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})();
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</script>
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</body>
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</html>
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