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ab771ec595
Self-contained examples for the PiP overlay API (POST /api/pip), each with a CSP-safe query-param overlay (external JS), config.example.json, zero runtime deps, an offline test, and a README: - PIP-Announce-Broadcast manual one-shot message to a screen/group - PIP-Weather-Widget Open-Meteo current conditions (keyless) - PIP-Air-Quality Open-Meteo US AQI widget (keyless) - PIP-Crypto-Ticker CoinGecko price strip (keyless) - PIP-News-Ticker scrolling RSS/Atom headlines - PIP-Room-Status-Calendar ICS-driven Available/Busy room sign - PIP-Event-Countdown client-side countdown, auto-clears at zero - PIP-Welcome-Board rotating welcome/birthday cards from CSV - PIP-Fundraiser-Thermometer goal-progress bar from local/URL JSON - PIP-QR-Rotator rotating QR codes, encoded client-side - PIP-Incident-Webhook event-driven: red on firing, clear on resolved Also includes the CAP-AU (NSW RFS) and US NWS/NOAA emergency-alert monitors that push expiry-aware PiP overlays. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
61 lines
2.2 KiB
JavaScript
61 lines
2.2 KiB
JavaScript
// External overlay script — same-origin so the server CSP (scriptSrc 'self') permits it.
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// Reads the headline string from the query and scrolls it right-to-left, seamlessly.
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(function () {
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var q = new URLSearchParams(location.search);
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var text = (q.get('text') || '').trim();
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var label = (q.get('label') || 'NEWS').trim();
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var sep = q.get('sep') || ' • ';
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document.getElementById('label').textContent = label;
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var track = document.getElementById('track');
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var viewport = track.parentNode;
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// Build one "run" of the content (separator-joined headlines). Splitting on the
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// separator lets us colour the dividers without trusting feed markup (textContent only).
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function buildRun(container) {
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var parts = text.length ? text.split(sep) : ['(no headlines)'];
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parts.forEach(function (p, i) {
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if (i > 0) {
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var s = document.createElement('span');
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s.className = 'sep';
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s.textContent = sep;
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container.appendChild(s);
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}
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var span = document.createElement('span');
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span.textContent = p;
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container.appendChild(span);
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});
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}
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// Two identical runs back-to-back → when the first scrolls fully off, reset by one
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// run width for a seamless loop.
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buildRun(track);
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var gap = document.createElement('span');
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gap.textContent = sep;
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gap.className = 'sep';
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track.appendChild(gap);
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var runWidth = 0;
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function measureAndStart() {
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runWidth = track.scrollWidth; // width of a single run (+ trailing sep)
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buildRun(track); // append the second copy for the wrap
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var x = viewport.clientWidth; // start just off the right edge
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var speed = 90; // px/sec
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var last = null;
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function frame(ts) {
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if (last == null) last = ts;
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var dt = (ts - last) / 1000; last = ts;
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x -= speed * dt;
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if (x <= -runWidth) x += runWidth; // wrap by exactly one run
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track.style.transform = 'translateX(' + x + 'px)';
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requestAnimationFrame(frame);
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}
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requestAnimationFrame(frame);
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}
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// Wait a tick so fonts/layout settle before measuring.
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if (document.readyState === 'complete') measureAndStart();
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else window.addEventListener('load', measureAndStart);
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})();
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