chore: preserve presentation sources and exporter

2026-08-31 15:35:35 +02:00
parent 11f78c4467
commit 919d408c81
9 changed files with 1211 additions and 0 deletions
@@ -0,0 +1,70 @@
+#!/usr/bin/env node
+// Render each slide of a ThothII-style HTML deck to a high-res PNG.
+// Assumes the deck exposes .slide sections navigable via #N hash routes.
+//
+// Usage:
+//   node render.mjs <deck.html> <outdir> [--hide "sel1,sel2"] [--scale 2] [--width 1600] [--height 900]
+//
+// Output: <outdir>/01.png .. NN.png + <outdir>/notes.json (slide number -> title text)
+import { createRequire } from 'node:module';
+import { execSync } from 'node:child_process';
+import { mkdirSync, writeFileSync } from 'node:fs';
+import path from 'node:path';
+
+const require = createRequire(import.meta.url);
+function req(name) {
+  try { return require(name); } catch {}
+  const g = execSync('npm root -g').toString().trim();
+  return require(path.join(g, name));
+}
+
+const args = process.argv.slice(2);
+const html = path.resolve(args[0]);
+const outdir = path.resolve(args[1]);
+if (!args[0] || !args[1]) {
+  console.error('usage: node render.mjs <deck.html> <outdir> [--hide "sel1,sel2"] [--scale 2] [--width 1600] [--height 900]');
+  process.exit(1);
+}
+const opt = (f, d) => { const i = args.indexOf(f); return i >= 0 ? args[i + 1] : d; };
+const hide = (opt('--hide', '') || '').split(',').map(s => s.trim()).filter(Boolean);
+const scale = Number(opt('--scale', '2'));
+const width = Number(opt('--width', '1600'));
+const height = Number(opt('--height', '900'));
+
+const { chromium } = req('playwright');
+mkdirSync(outdir, { recursive: true });
+
+const browser = await chromium.launch();
+const page = await browser.newPage({
+  viewport: { width, height },
+  deviceScaleFactor: scale,
+  reducedMotion: 'reduce',
+});
+await page.goto('file://' + html, { waitUntil: 'networkidle' });
+await page.evaluate(() => document.fonts.ready);
+if (hide.length) {
+  await page.addStyleTag({ content: hide.map(s => `${s}{display:none!important}`).join('\n') });
+}
+
+const count = await page.locator('.slide').count();
+const notes = {};
+for (let i = 1; i <= count; i++) {
+  await page.evaluate(n => { location.hash = '#' + n; }, i);
+  await page.waitForFunction(n => {
+    const s = document.querySelectorAll('.slide')[n - 1];
+    return !!s && s.classList.contains('on');
+  }, i);
+  await page.waitForTimeout(450); // let the crossfade settle
+  const file = path.join(outdir, String(i).padStart(2, '0') + '.png');
+  await page.screenshot({ path: file });
+  notes[i] = await page.evaluate(n => {
+    const s = document.querySelectorAll('.slide')[n - 1];
+    const t = s.querySelector('.title, .cover-mark');
+    const txt = t ? t.innerText.trim().replace(/\s+/g, ' ') : '';
+    return txt || s.getAttribute('aria-label') || '';
+  }, i);
+  console.log('rendered', file);
+}
+await browser.close();
+writeFileSync(path.join(outdir, 'notes.json'), JSON.stringify(notes, null, 2));
+console.log('done:', count, 'slides ->', outdir);