Changeset 0.11.0 (#62)
This commit is contained in:
254
extensions/builtin/csv-table/script.js
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254
extensions/builtin/csv-table/script.js
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// ==========================================
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// CSV Table Viewer — Browser Extension
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// ==========================================
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// Renders ```csv and ```tsv code blocks as sortable HTML tables.
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// No external dependencies.
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// ==========================================
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Extensions.register({
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id: 'csv-table',
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async init(ctx) {
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const self = this;
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// ── Inject styles ──
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this._injectStyles();
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ctx.renderers.register('csv-block', {
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type: 'block',
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priority: 10,
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match(lang) {
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const l = (lang || '').toLowerCase();
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return l === 'csv' || l === 'tsv';
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},
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render(lang, code, container) {
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const delimiter = lang.toLowerCase() === 'tsv' ? '\t' : ',';
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const rows = self._parseCSV(code.trim(), delimiter);
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if (rows.length === 0) {
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container.innerHTML = '<div class="csv-empty">No data</div>';
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return;
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}
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const headers = rows[0];
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const data = rows.slice(1);
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const tableId = 'csv-' + Math.random().toString(36).slice(2, 9);
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container.innerHTML = `
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<div class="csv-table-block ext-rendered" data-csv-id="${tableId}">
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<div class="csv-toolbar">
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<span class="csv-info">${data.length} row${data.length !== 1 ? 's' : ''} × ${headers.length} col${headers.length !== 1 ? 's' : ''}</span>
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<button class="csv-copy-btn" title="Copy as CSV">📋 Copy</button>
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</div>
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<div class="csv-table-scroll">
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<table class="csv-table">
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<thead>
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<tr>${headers.map((h, i) => `<th data-col="${i}" title="Click to sort">${self._escapeHtml(h)}<span class="csv-sort-icon"></span></th>`).join('')}</tr>
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</thead>
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<tbody>
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${data.map(row => `<tr>${row.map(cell => `<td>${self._escapeHtml(cell)}</td>`).join('')}</tr>`).join('')}
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</tbody>
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</table>
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</div>
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<details class="csv-source">
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<summary>📄 View raw</summary>
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<pre><code>${self._escapeHtml(code.trim())}</code></pre>
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</details>
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</div>
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`;
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// Attach sort handlers + copy
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self._attachHandlers(container, tableId, code.trim());
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}
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});
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},
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_attachHandlers(container, tableId, rawCSV) {
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const block = container.querySelector(`[data-csv-id="${tableId}"]`);
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if (!block) return;
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// ── Column sorting ──
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const ths = block.querySelectorAll('th[data-col]');
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let sortCol = -1;
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let sortAsc = true;
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ths.forEach(th => {
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th.style.cursor = 'pointer';
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th.addEventListener('click', () => {
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const col = parseInt(th.dataset.col, 10);
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if (sortCol === col) {
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sortAsc = !sortAsc;
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} else {
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sortCol = col;
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sortAsc = true;
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}
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const tbody = block.querySelector('tbody');
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const rows = Array.from(tbody.querySelectorAll('tr'));
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rows.sort((a, b) => {
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const cellA = (a.children[col]?.textContent || '').trim();
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const cellB = (b.children[col]?.textContent || '').trim();
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const numA = parseFloat(cellA);
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const numB = parseFloat(cellB);
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// Numeric sort if both are numbers
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if (!isNaN(numA) && !isNaN(numB)) {
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return sortAsc ? numA - numB : numB - numA;
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}
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// String sort
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const cmp = cellA.localeCompare(cellB, undefined, { numeric: true, sensitivity: 'base' });
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return sortAsc ? cmp : -cmp;
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});
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rows.forEach(row => tbody.appendChild(row));
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// Update sort icons
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ths.forEach(h => {
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const icon = h.querySelector('.csv-sort-icon');
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if (icon) {
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const hCol = parseInt(h.dataset.col, 10);
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icon.textContent = hCol === sortCol ? (sortAsc ? ' ▲' : ' ▼') : '';
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}
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});
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});
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});
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// ── Copy button ──
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const copyBtn = block.querySelector('.csv-copy-btn');
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if (copyBtn) {
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copyBtn.addEventListener('click', () => {
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navigator.clipboard.writeText(rawCSV).then(() => {
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copyBtn.textContent = '✓ Copied';
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setTimeout(() => { copyBtn.textContent = '📋 Copy'; }, 1500);
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}).catch(() => {
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copyBtn.textContent = '✗ Failed';
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setTimeout(() => { copyBtn.textContent = '📋 Copy'; }, 1500);
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});
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});
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}
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},
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/**
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* Simple CSV parser that handles quoted fields.
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*/
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_parseCSV(text, delimiter) {
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const rows = [];
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let row = [];
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let field = '';
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let inQuotes = false;
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let i = 0;
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while (i < text.length) {
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const ch = text[i];
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if (inQuotes) {
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if (ch === '"') {
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// Peek ahead: escaped quote or end of quoted field
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if (i + 1 < text.length && text[i + 1] === '"') {
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field += '"';
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i += 2;
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} else {
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inQuotes = false;
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i++;
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}
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} else {
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field += ch;
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i++;
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}
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} else {
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if (ch === '"' && field === '') {
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inQuotes = true;
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i++;
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} else if (ch === delimiter) {
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row.push(field.trim());
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field = '';
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i++;
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} else if (ch === '\n' || (ch === '\r' && text[i + 1] === '\n')) {
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row.push(field.trim());
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if (row.some(cell => cell !== '')) rows.push(row);
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row = [];
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field = '';
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i += (ch === '\r') ? 2 : 1;
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} else {
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field += ch;
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i++;
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}
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}
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}
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// Last field/row
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row.push(field.trim());
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if (row.some(cell => cell !== '')) rows.push(row);
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// Normalize: pad short rows to header length
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if (rows.length > 0) {
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const maxCols = Math.max(...rows.map(r => r.length));
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rows.forEach(r => {
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while (r.length < maxCols) r.push('');
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});
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}
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return rows;
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},
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_escapeHtml(str) {
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const div = document.createElement('div');
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div.textContent = str;
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return div.innerHTML;
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},
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_injectStyles() {
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if (document.getElementById('ext-style-csv-table')) return;
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const style = document.createElement('style');
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style.id = 'ext-style-csv-table';
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style.textContent = `
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.csv-table-block {
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background: var(--bg-2); border: 1px solid var(--border);
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border-radius: 8px; overflow: hidden; margin: 12px 0;
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}
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.csv-toolbar {
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display: flex; align-items: center; gap: 8px;
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padding: 6px 12px; border-bottom: 1px solid var(--border);
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font-size: 12px; color: var(--text-3);
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}
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.csv-info { flex: 1; }
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.csv-copy-btn {
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background: none; border: 1px solid var(--border); border-radius: 4px;
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padding: 2px 8px; font-size: 12px; cursor: pointer; color: var(--text-3);
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}
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.csv-copy-btn:hover { color: var(--text-2); border-color: var(--text-3); }
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.csv-table-scroll { overflow-x: auto; }
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.csv-table {
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width: 100%; border-collapse: collapse; font-size: 13px;
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font-family: var(--mono);
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}
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.csv-table th {
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background: var(--bg-3); color: var(--text-2); font-weight: 600;
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padding: 6px 12px; text-align: left; white-space: nowrap;
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border-bottom: 2px solid var(--border); user-select: none;
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}
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.csv-table th:hover { color: var(--text-1); }
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.csv-sort-icon { font-size: 11px; opacity: 0.7; }
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.csv-table td {
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padding: 4px 12px; border-bottom: 1px solid var(--border);
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white-space: nowrap; max-width: 300px; overflow: hidden; text-overflow: ellipsis;
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}
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.csv-table tr:hover td { background: var(--bg-3); }
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.csv-source, .csv-empty { border-top: 1px solid var(--border); font-size: 12px; }
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.csv-source summary {
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padding: 6px 12px; cursor: pointer; color: var(--text-3); user-select: none;
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}
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.csv-source summary:hover { color: var(--text-2); }
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.csv-source pre {
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margin: 0; border-radius: 0; border: none;
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max-height: 200px; overflow: auto;
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}
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.csv-empty { padding: 16px; text-align: center; color: var(--text-3); }`;
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document.head.appendChild(style);
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},
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destroy() {
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document.getElementById('ext-style-csv-table')?.remove();
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}
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});
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