mirror of
https://github.com/heygen-com/hyperframes.git
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vanceingallsandClaude Fable 5
8bf939043f
- caption-emoji-pop: shadowForColor now builds its glow via color-mix() instead of hex-pair slicing, so the strict 6-digit brand-color gate is gone — any CSS color the sibling templates accept (#fff, rgb(), named) now renders instead of silently falling back to the default palette - caption-weight-shift: fitFontSize now sizes against the WIDEST split line rather than the joined group text (two-line groups no longer shrink unnecessarily), and avoidSingleWordGroups' merges re-check fitsInTwoLines like makeGroups' first pass does (merged groups can no longer overflow the split budget) - all 5: hfApplyStageConfig clamps resolution to the published validator's <=8192 bound (validator is optional pre-flight; unbounded stages OOM render workers), and fit floors carry a comment documenting that the minimum size is returned unverified by design Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
645 lines
24 KiB
HTML
Vendored
645 lines
24 KiB
HTML
Vendored
<!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=1920, height=1080" />
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<title>Pill Karaoke</title>
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
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<link
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href="https://fonts.googleapis.com/css2?family=Poppins:wght@700&display=swap"
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rel="stylesheet"
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/>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<style>
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*,
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*::before,
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*::after {
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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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width: 1920px;
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height: 1080px;
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margin: 0;
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overflow: hidden;
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background: transparent;
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font-family: "Poppins", Arial, sans-serif;
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}
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#pill-karaoke {
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pointer-events: none;
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position: relative;
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width: 1920px;
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height: 1080px;
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overflow: hidden;
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background: transparent;
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}
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.caption-layer {
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position: absolute;
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inset: 0;
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z-index: 20;
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pointer-events: none;
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transform: translateZ(0);
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}
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.safe-zone {
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position: absolute;
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bottom: 100px;
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left: 50%;
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transform: translateX(-50%);
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width: 1600px;
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height: 220px;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.caption-group {
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position: absolute;
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left: 0;
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top: 0;
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width: 1600px;
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height: 220px;
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display: flex;
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align-items: center;
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justify-content: center;
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opacity: 0;
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}
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.caption-pill {
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width: auto;
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max-width: 1600px;
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padding: 18px 60px 20px;
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border-radius: 22px;
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background: #e7e5e7;
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
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text-align: center;
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overflow: visible;
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}
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.caption-copy {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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width: 100%;
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color: #a6a6a6;
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font-family: "Poppins", Arial, sans-serif;
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font-size: 72px;
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font-weight: 700;
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line-height: 1.16;
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letter-spacing: 0;
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white-space: nowrap;
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word-break: normal;
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overflow: visible;
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}
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.caption-line {
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display: flex;
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justify-content: center;
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gap: 16px;
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width: 100%;
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max-width: none;
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line-height: 1.16;
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white-space: nowrap;
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overflow: visible;
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}
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.caption-word {
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display: inline-block;
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color: #a6a6a6;
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}
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</style>
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</head>
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<body>
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<div
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id="pill-karaoke"
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data-composition-id="caption-pill-karaoke"
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data-timeline-locked
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data-start="0"
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data-duration="8"
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data-fps="30"
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data-width="1920"
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data-height="1080"
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>
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<div class="caption-layer" aria-hidden="true">
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<div id="caption-stage" class="safe-zone"></div>
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</div>
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</div>
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<script>
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// IIFE: keep every template's runtime private to itself so two caption
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// components pasted into one composition document can't clobber each
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// other's hfAttach/hfBuild via shared script-scope names (boot is async,
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// so collisions surface AFTER all scripts have executed).
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(function () {
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var HF_COMPOSITION_ID = "caption-pill-karaoke";
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var HF_ROOT_ID = "pill-karaoke";
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var HF_GROUP_SELECTOR = ".caption-group";
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var HF_DEMO_DATA = {
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version: 1,
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segments: [
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{
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start: 0,
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text: "Every great video starts with a single frame. HyperFrames lets you write HTML and render professional video. No timeline. No drag and drop. Just code that becomes cinema.",
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words: [
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{ text: "Every", start: 0.0, end: 0.3 },
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{ text: "great", start: 0.3, end: 0.55 },
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{ text: "video", start: 0.55, end: 0.85 },
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{ text: "starts", start: 0.85, end: 1.1 },
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{ text: "with", start: 1.1, end: 1.25 },
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{ text: "a", start: 1.25, end: 1.35 },
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{ text: "single", start: 1.35, end: 1.65 },
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{ text: "frame.", start: 1.65, end: 2.0 },
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{ text: "HyperFrames", start: 2.1, end: 2.65 },
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{ text: "lets", start: 2.65, end: 2.85 },
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{ text: "you", start: 2.85, end: 2.95 },
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{ text: "write", start: 2.95, end: 3.15 },
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{ text: "HTML", start: 3.15, end: 3.55 },
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{ text: "and", start: 3.55, end: 3.65 },
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{ text: "render", start: 3.65, end: 3.95 },
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{ text: "professional", start: 3.95, end: 4.45 },
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{ text: "video.", start: 4.45, end: 4.8 },
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{ text: "No", start: 4.9, end: 5.05 },
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{ text: "timeline.", start: 5.05, end: 5.45 },
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{ text: "No", start: 5.5, end: 5.65 },
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{ text: "drag", start: 5.65, end: 5.85 },
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{ text: "and", start: 5.85, end: 5.95 },
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{ text: "drop.", start: 5.95, end: 6.25 },
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{ text: "Just", start: 6.35, end: 6.55 },
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{ text: "code", start: 6.55, end: 6.8 },
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{ text: "that", start: 6.8, end: 6.95 },
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{ text: "becomes", start: 6.95, end: 7.3 },
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{ text: "cinema.", start: 7.3, end: 7.7 },
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],
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},
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],
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};
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/* ── HyperFrames caption-data runtime (shared across caption templates) ── */
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var HF_CONTRACT_VERSION = 1;
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var HF_DEFAULT_RESOLUTION = { width: 1920, height: 1080 };
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function hfFlattenSegments(segments) {
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var out = [];
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(segments || []).forEach(function (seg) {
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((seg && seg.words) || []).forEach(function (w) {
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var start = Math.max(0, Number(w.start) || 0);
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out.push({
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text: String(w.word || w.text || "").trim(),
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start: start,
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end: Math.max(start, Number(w.end) || 0),
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});
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});
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});
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out.sort(function (a, b) {
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return a.start - b.start;
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});
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return out.filter(function (w) {
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return w.text.length > 0;
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});
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}
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function hfDeriveDuration(words) {
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var end = 0;
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words.forEach(function (w) {
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if (w.end > end) end = w.end;
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});
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return end;
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}
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function hfValidate(data) {
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if (!data || typeof data !== "object") return { ok: false, reason: "not-an-object" };
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if (data.version != null) {
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// Number("v2") is NaN and NaN > x is always false — an explicit
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// finite check keeps malformed versions from slipping past the gate.
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var hfVersion = Number(data.version);
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if (!Number.isFinite(hfVersion) || Math.floor(hfVersion) > HF_CONTRACT_VERSION) {
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return { ok: false, reason: "unsupported-version" };
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}
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}
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if (!Array.isArray(data.segments) || data.segments.length === 0) {
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return { ok: false, reason: "no-segments" };
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}
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if (data.displayMode != null && data.displayMode !== "full") {
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return { ok: false, reason: "unsupported-displayMode" };
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}
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var words = hfFlattenSegments(data.segments);
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if (words.length === 0) return { ok: false, reason: "no-words" };
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return { ok: true, words: words, durationS: hfDeriveDuration(words) };
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}
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function hfApplyStageConfig(data, durationS) {
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var res = (data && data.resolution) || HF_DEFAULT_RESOLUTION;
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// Mirror the published validator's <=8192 bound defensively — the
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// validator is an optional pre-flight, and an unbounded stage size
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// would OOM render workers.
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var W = Math.min(
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8192,
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Math.max(1, Math.round(Number(res.width) || HF_DEFAULT_RESOLUTION.width)),
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);
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var H = Math.min(
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8192,
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Math.max(1, Math.round(Number(res.height) || HF_DEFAULT_RESOLUTION.height)),
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);
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var root = document.getElementById(HF_ROOT_ID);
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[document.documentElement, document.body, root].forEach(function (el) {
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el.style.width = W + "px";
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el.style.height = H + "px";
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});
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root.setAttribute("data-width", String(W));
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root.setAttribute("data-height", String(H));
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root.setAttribute("data-duration", String(durationS));
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var brand = (data && data.brand) || {};
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if (typeof brand.primaryColor === "string" && brand.primaryColor) {
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root.style.setProperty("--hf-caption-primary", brand.primaryColor);
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} else {
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root.style.removeProperty("--hf-caption-primary");
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}
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if (typeof brand.accentColor === "string" && brand.accentColor) {
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root.style.setProperty("--hf-caption-accent", brand.accentColor);
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} else {
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root.style.removeProperty("--hf-caption-accent");
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}
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return {
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W: W,
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H: H,
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scaleX: W / 1920,
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scaleY: H / 1080,
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fontScale: Math.min(W, H) / 1080,
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};
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}
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function hfPublishStatus(status) {
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window.__HF_CAPTION_STATUS = status;
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document
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.getElementById(HF_ROOT_ID)
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.setAttribute("data-caption-status", status.ok ? "ok" : "failed");
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}
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function hfRunGate(words, durationS, failReason) {
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if (failReason) {
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hfPublishStatus({
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ok: false,
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present: false,
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contained: false,
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reason: failReason,
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version: HF_CONTRACT_VERSION,
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durationS: durationS || 0,
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});
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return;
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}
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var root = document.getElementById(HF_ROOT_ID);
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var rootRect = root.getBoundingClientRect();
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var groups = root.querySelectorAll(HF_GROUP_SELECTOR);
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var present = false;
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var contained = true;
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var tokens = [];
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words.forEach(function (w) {
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var t = w.text.toLowerCase().replace(/[^a-z0-9]/g, "");
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if (t) tokens.push(t);
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});
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groups.forEach(function (el) {
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var prevOpacity = el.style.opacity;
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var prevVisibility = el.style.visibility;
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el.style.opacity = "1";
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el.style.visibility = "visible";
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var r = el.getBoundingClientRect();
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if (r.width > 0 && r.height > 0) {
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var text = (el.textContent || "").toLowerCase();
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for (var i = 0; i < tokens.length; i++) {
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if (text.indexOf(tokens[i]) !== -1) {
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present = true;
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break;
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}
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}
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if (
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r.left < rootRect.left - 1 ||
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r.right > rootRect.right + 1 ||
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r.top < rootRect.top - 1 ||
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r.bottom > rootRect.bottom + 1
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) {
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contained = false;
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}
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}
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el.style.opacity = prevOpacity;
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el.style.visibility = prevVisibility;
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});
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hfPublishStatus({
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ok: present && contained,
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present: present,
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contained: contained,
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version: HF_CONTRACT_VERSION,
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durationS: durationS,
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});
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}
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var DURATION, SAFE_ZONE_WIDTH, PILL_MAX_WIDTH, BASE_FONT_SIZE, MIN_FONT_SIZE, WORD_SPACING;
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var PILL_MIN_PADDING_X = 30;
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var PILL_MAX_PADDING_X = 60;
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var FONT_WIDTH_SAFETY = 1.18;
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var FONT_FAMILY = "Poppins";
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var FONT_WEIGHT = "700";
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var MAX_WORDS_PER_GROUP = 4;
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var PAUSE_THRESHOLD = 0.1;
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var GROUP_END_BUFFER = 0.3;
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var COLOR_INACTIVE = "#A6A6A6";
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var COLOR_ACTIVE = "#1C1E1D";
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var hfColorActive = COLOR_ACTIVE;
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var COLOR_FADE_DURATION = 0.1;
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var WORD_FADE_LEAD = 0.05;
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function normalizeWords(rawWords) {
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return rawWords
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.map(function (item) {
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var text = String(item.word || item.text || "").trim();
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return {
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text: text,
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start: Math.max(0, Number(item.start) || 0),
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end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
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};
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})
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.filter(function (w) {
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return w.text.length > 0;
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});
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}
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var measureCanvas = document.createElement("canvas");
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var measureContext = measureCanvas.getContext("2d");
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function measureWordWidth(text, fontSize) {
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measureContext.font = FONT_WEIGHT + " " + fontSize + "px " + FONT_FAMILY;
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return measureContext.measureText(text).width * FONT_WIDTH_SAFETY;
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}
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function measureLineWidth(words, fontSize) {
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return words.reduce(function (total, word, index) {
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return (
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total +
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measureWordWidth(word.text.toLowerCase(), fontSize) +
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(index ? WORD_SPACING : 0)
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);
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}, 0);
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}
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function splitLinesForGroup(words, fontSize) {
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var maxLineWidth = PILL_MAX_WIDTH - PILL_MIN_PADDING_X * 2;
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if (
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words.some(function (w) {
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return measureWordWidth(w.text.toLowerCase(), fontSize) > maxLineWidth;
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})
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) {
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return null;
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}
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if (measureLineWidth(words, fontSize) <= maxLineWidth) return [words];
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var bestSplit = null;
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var bestImbalance = Infinity;
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for (var split = 1; split < words.length; split++) {
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var firstLine = words.slice(0, split);
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var secondLine = words.slice(split);
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var firstWidth = measureLineWidth(firstLine, fontSize);
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var secondWidth = measureLineWidth(secondLine, fontSize);
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if (firstWidth <= maxLineWidth && secondWidth <= maxLineWidth) {
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var imbalance = Math.abs(firstWidth - secondWidth);
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if (imbalance < bestImbalance) {
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bestSplit = [firstLine, secondLine];
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bestImbalance = imbalance;
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}
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}
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}
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return bestSplit;
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}
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function fitsInTwoLinesAtSize(words, fontSize) {
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return splitLinesForGroup(words, fontSize) !== null;
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}
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function planPillLayout(words, fontSize) {
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var lines = splitLinesForGroup(words, fontSize) || [words];
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var widestLine = lines.reduce(function (max, lineWords) {
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return Math.max(max, measureLineWidth(lineWords, fontSize));
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}, 0);
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var availablePadding = Math.floor((PILL_MAX_WIDTH - widestLine) / 2);
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var padX = Math.max(PILL_MIN_PADDING_X, Math.min(PILL_MAX_PADDING_X, availablePadding));
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var pillWidth = Math.min(PILL_MAX_WIDTH, Math.ceil(widestLine + padX * 2));
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return { lines: lines, padX: padX, pillWidth: pillWidth };
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}
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function makeGroups(words) {
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var groups = [];
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var current = [];
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words.forEach(function (word, index) {
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var testGroup = current.concat([word]);
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var nextWord = words[index + 1];
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var wouldExceedMaxWords = testGroup.length > MAX_WORDS_PER_GROUP;
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var wouldExceedTwoLines = !fitsInTwoLinesAtSize(testGroup, BASE_FONT_SIZE);
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if (wouldExceedMaxWords || wouldExceedTwoLines) {
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if (current.length) {
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groups.push({
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words: current.slice(),
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start: current[0].start,
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end: current[current.length - 1].end,
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});
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}
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current = [word];
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return;
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}
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current.push(word);
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var hasPunctuation = /[,.:!?]$/.test(word.text);
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var pauseDuration = nextWord ? nextWord.start - word.end : 0;
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var hasNaturalPause = pauseDuration >= PAUSE_THRESHOLD;
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var maxWordsReached = current.length >= MAX_WORDS_PER_GROUP;
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if (maxWordsReached || !nextWord || hasPunctuation || hasNaturalPause) {
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groups.push({
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words: current.slice(),
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start: current[0].start,
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end: current[current.length - 1].end,
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});
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current = [];
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}
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});
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if (current.length)
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groups.push({
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words: current.slice(),
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start: current[0].start,
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end: current[current.length - 1].end,
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});
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return groups;
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}
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function fontSizeForGroup(words) {
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var size = BASE_FONT_SIZE;
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// MIN_FONT_SIZE is a hard floor returned unverified below — self-heal
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// accepts residual overflow at the floor (clipped by the stage)
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// rather than shrinking below legibility.
|
|
while (size > MIN_FONT_SIZE && !fitsInTwoLinesAtSize(words, size)) {
|
|
size -= 2;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
function buildCaptions(groups) {
|
|
var stage = document.getElementById("caption-stage");
|
|
groups.forEach(function (group, groupIndex) {
|
|
var groupEl = document.createElement("div");
|
|
var pillEl = document.createElement("div");
|
|
var copyEl = document.createElement("div");
|
|
var fontSize = fontSizeForGroup(group.words);
|
|
groupEl.id = "caption-group-" + groupIndex;
|
|
groupEl.className = "caption-group";
|
|
pillEl.className = "caption-pill";
|
|
copyEl.className = "caption-copy";
|
|
copyEl.style.fontSize = fontSize + "px";
|
|
var indexedWords = group.words.map(function (word, wordIndex) {
|
|
return { text: word.text, start: word.start, end: word.end, wordIndex: wordIndex };
|
|
});
|
|
var layout = planPillLayout(indexedWords, fontSize);
|
|
pillEl.style.width = layout.pillWidth + "px";
|
|
pillEl.style.maxWidth = PILL_MAX_WIDTH + "px";
|
|
pillEl.style.paddingLeft = layout.padX + "px";
|
|
pillEl.style.paddingRight = layout.padX + "px";
|
|
layout.lines.slice(0, 2).forEach(function (lineWords) {
|
|
var lineEl = document.createElement("div");
|
|
lineEl.className = "caption-line";
|
|
lineWords.forEach(function (word) {
|
|
var wordEl = document.createElement("span");
|
|
wordEl.id = "caption-word-" + groupIndex + "-" + word.wordIndex;
|
|
wordEl.className = "caption-word";
|
|
wordEl.textContent = word.text.toLowerCase();
|
|
lineEl.appendChild(wordEl);
|
|
});
|
|
copyEl.appendChild(lineEl);
|
|
});
|
|
pillEl.appendChild(copyEl);
|
|
groupEl.appendChild(pillEl);
|
|
stage.appendChild(groupEl);
|
|
});
|
|
}
|
|
|
|
function hfTeardown() {
|
|
document.getElementById("caption-stage").innerHTML = "";
|
|
}
|
|
|
|
function hfBuild(words, layout, durationS) {
|
|
DURATION = durationS;
|
|
BASE_FONT_SIZE = Math.round(72 * layout.fontScale);
|
|
MIN_FONT_SIZE = Math.round(52 * layout.fontScale);
|
|
SAFE_ZONE_WIDTH = Math.round(1600 * layout.scaleX);
|
|
PILL_MAX_WIDTH = SAFE_ZONE_WIDTH;
|
|
WORD_SPACING = Math.round(16 * layout.fontScale);
|
|
|
|
var stage = document.getElementById("caption-stage");
|
|
var stageHeight = Math.round(220 * layout.fontScale);
|
|
stage.style.width = SAFE_ZONE_WIDTH + "px";
|
|
stage.style.height = stageHeight + "px";
|
|
stage.style.bottom = Math.round(90 * layout.scaleY) + "px";
|
|
|
|
var rootEl = document.getElementById(HF_ROOT_ID);
|
|
var accent = getComputedStyle(rootEl).getPropertyValue("--hf-caption-accent").trim();
|
|
hfColorActive = accent || COLOR_ACTIVE;
|
|
|
|
var WORDS = normalizeWords(words);
|
|
var GROUPS = makeGroups(WORDS);
|
|
buildCaptions(GROUPS);
|
|
GROUPS.forEach(function (_, i) {
|
|
var el = document.getElementById("caption-group-" + i);
|
|
el.style.width = SAFE_ZONE_WIDTH + "px";
|
|
el.style.height = stageHeight + "px";
|
|
});
|
|
|
|
var tl = gsap.timeline({ paused: true });
|
|
|
|
GROUPS.forEach(function (group, groupIndex) {
|
|
var groupEl = document.getElementById("caption-group-" + groupIndex);
|
|
var nextGroup = GROUPS[groupIndex + 1];
|
|
var isLastGroup = groupIndex === GROUPS.length - 1;
|
|
var effectiveEnd = isLastGroup
|
|
? DURATION
|
|
: Math.min(nextGroup.start, group.end + GROUP_END_BUFFER);
|
|
var visibleStart = Math.max(0, group.start);
|
|
var visibleEnd = Math.max(visibleStart + 0.01, effectiveEnd);
|
|
|
|
tl.set(groupEl, { opacity: 1 }, visibleStart);
|
|
tl.set(groupEl, { opacity: 0 }, visibleEnd);
|
|
|
|
group.words.forEach(function (word, wordIndex) {
|
|
var wordEl = document.getElementById("caption-word-" + groupIndex + "-" + wordIndex);
|
|
var isFirstWord = wordIndex === 0;
|
|
var wordStart = Math.max(visibleStart, word.start - WORD_FADE_LEAD);
|
|
tl.set(wordEl, { color: isFirstWord ? hfColorActive : COLOR_INACTIVE }, visibleStart);
|
|
if (isFirstWord) return;
|
|
tl.to(
|
|
wordEl,
|
|
{ color: hfColorActive, duration: COLOR_FADE_DURATION, ease: "none" },
|
|
wordStart,
|
|
);
|
|
});
|
|
});
|
|
|
|
return tl;
|
|
}
|
|
|
|
var hfCurrentTimeline = null;
|
|
|
|
function hfAttach(data) {
|
|
var v = hfValidate(data);
|
|
if (!v.ok) {
|
|
hfRunGate([], 0, v.reason);
|
|
return;
|
|
}
|
|
if (hfCurrentTimeline) {
|
|
hfCurrentTimeline.kill();
|
|
hfCurrentTimeline = null;
|
|
}
|
|
hfTeardown();
|
|
var layout = hfApplyStageConfig(data, v.durationS);
|
|
var tl = hfBuild(v.words, layout, v.durationS);
|
|
tl.set({}, {}, v.durationS); // pin timeline length to the data-derived duration
|
|
// GSAP quirk (confirmed 3.14.2): a fresh timeline already reports position 0,
|
|
// so seek(0) is treated as a no-op and skips rendering .set() calls scheduled
|
|
// at t=0 — the first frame would show pre-timeline CSS defaults (usually
|
|
// hidden). render(time, suppressEvents, force) with force=true bypasses that.
|
|
tl.render(0, true, true);
|
|
hfCurrentTimeline = tl;
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines[HF_COMPOSITION_ID] = tl;
|
|
hfRunGate(v.words, v.durationS, null);
|
|
}
|
|
window.__HF_CAPTION_ATTACH__ = hfAttach;
|
|
|
|
(function hfBoot() {
|
|
function start(data) {
|
|
var ready =
|
|
document.fonts && document.fonts.ready ? document.fonts.ready : Promise.resolve();
|
|
ready.then(function () {
|
|
// A manual window.__HF_CAPTION_ATTACH__ call that lands while the
|
|
// sibling fetch / fonts.ready are still pending must win — never
|
|
// clobber it with the late-arriving boot payload.
|
|
if (hfCurrentTimeline) return;
|
|
hfAttach(data);
|
|
});
|
|
}
|
|
if (window.__HF_CAPTION__) {
|
|
start(window.__HF_CAPTION__);
|
|
return;
|
|
}
|
|
fetch("./caption-data.json")
|
|
.then(function (r) {
|
|
return r.ok ? r.json() : null;
|
|
})
|
|
.catch(function () {
|
|
return null;
|
|
})
|
|
.then(function (json) {
|
|
start(json || HF_DEMO_DATA);
|
|
});
|
|
})();
|
|
})();
|
|
</script>
|
|
</body>
|
|
</html>
|