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https://github.com/hanzoai/frames.git
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Merge pull request #2750 from heygen-com/feat/caption-data-driven
feat(registry): make the 5 caption catalog components data-driven
This commit is contained in:
Vance Ingalls
+578
-266
@@ -80,7 +80,7 @@
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.word {
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display: inline-block;
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color: #f5f0d0;
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color: var(--hf-caption-primary, #f5f0d0);
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text-shadow:
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0 2px 12px rgba(0, 0, 0, 0.6),
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0 4px 24px rgba(0, 0, 0, 0.35);
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@@ -95,20 +95,13 @@
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font-style: normal;
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}
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.word--italic {
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font-family: "Inter", sans-serif;
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font-size: 86px;
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font-weight: 400;
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font-style: italic;
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}
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.word--emphasis {
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font-family: "Playfair Display", serif;
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font-size: 180px;
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font-weight: 800;
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font-style: italic;
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line-height: 0.9;
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color: #f5f0d0;
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color: var(--hf-caption-primary, #f5f0d0);
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}
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</style>
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</head>
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@@ -129,268 +122,507 @@
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</div>
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<script>
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var DURATION = 8;
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var SAFE_WIDTH = 1800;
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var ENTRY_DUR = 0.1;
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var SLIDE_DUR = 0.2;
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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-editorial-emphasis";
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var HF_ROOT_ID = "editorial-emphasis";
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var HF_GROUP_SELECTOR = ".caption-block";
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var _fitCanvas = document.createElement("canvas");
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var _fitCtx = _fitCanvas.getContext("2d");
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function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
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var size = baseFontSize;
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var minSize = Math.floor(baseFontSize * 0.45);
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while (size > minSize) {
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_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
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if (_fitCtx.measureText(text).width <= maxWidth) return size;
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size -= 2;
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}
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return minSize;
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}
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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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// Generic transcript words
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var W = [
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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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/* ── 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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// Block layout: [wordIndex, type] — n=normal, i=italic, e=emphasis(large)
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// Emphasis words: HyperFrames(8), HTML(12), professional(15), code(24), cinema.(27)
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var BLOCKS = [
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{
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line1: [
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[0, "n"],
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[1, "n"],
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[2, "n"],
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],
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line2: [
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[3, "n"],
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[4, "n"],
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],
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},
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{
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line1: [
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[5, "n"],
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[6, "n"],
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],
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line2: [[7, "e"]],
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},
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{ line1: [[8, "e"]], line2: null },
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{
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line1: [
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[9, "n"],
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[10, "n"],
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[11, "n"],
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],
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line2: [[12, "e"]],
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},
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{
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line1: [
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[13, "n"],
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[14, "n"],
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],
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line2: [[15, "e"]],
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},
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{
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line1: [
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[16, "n"],
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[17, "n"],
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],
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line2: null,
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},
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{
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line1: [[18, "n"]],
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line2: [
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[19, "n"],
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[20, "n"],
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],
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},
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{
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line1: [
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[21, "n"],
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[22, "n"],
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],
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line2: null,
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},
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{
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line1: [
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[23, "i"],
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[24, "e"],
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],
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line2: null,
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},
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{
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line1: [
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[25, "n"],
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[26, "n"],
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],
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line2: [[27, "e"]],
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},
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];
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var CLASS_MAP = { n: "word word--normal", i: "word word--italic", e: "word word--emphasis" };
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function computeLineSize(linePairs) {
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var hasEmphasis = linePairs.some(function (p) {
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return p[1] === "e";
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});
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if (hasEmphasis) {
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var lineText = linePairs
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.map(function (p) {
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return W[p[0]].text;
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})
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.join(" ");
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return fitFontSize(lineText, 180, "800", "Playfair Display", SAFE_WIDTH);
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}
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var lineText = linePairs
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.map(function (p) {
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return W[p[0]].text;
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})
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.join(" ");
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return fitFontSize(lineText, 86, "400", "Inter", SAFE_WIDTH);
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}
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function buildBlocks() {
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var stage = document.getElementById("caption-stage");
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BLOCKS.forEach(function (block, bi) {
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var el = document.createElement("div");
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el.className = "caption-block";
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el.id = "b" + bi;
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var l1Size = computeLineSize(block.line1);
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var l1 = document.createElement("div");
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l1.className = "caption-line";
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l1.id = "b" + bi + "L1";
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block.line1.forEach(function (pair, wi) {
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var span = document.createElement("span");
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span.className = CLASS_MAP[pair[1]];
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span.id = "b" + bi + "L1w" + wi;
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span.textContent = W[pair[0]].text;
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if (pair[1] === "e") {
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span.style.fontSize = l1Size + "px";
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} else {
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span.style.fontSize = l1Size + "px";
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}
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l1.appendChild(span);
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});
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el.appendChild(l1);
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if (block.line2) {
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var l2Size = computeLineSize(block.line2);
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var l2 = document.createElement("div");
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l2.className = "caption-line";
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l2.id = "b" + bi + "L2";
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block.line2.forEach(function (pair, wi) {
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var span = document.createElement("span");
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span.className = CLASS_MAP[pair[1]];
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span.id = "b" + bi + "L2w" + wi;
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span.textContent = W[pair[0]].text;
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if (pair[1] === "e") {
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span.style.fontSize = l2Size + "px";
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} else {
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span.style.fontSize = l2Size + "px";
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}
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l2.appendChild(span);
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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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el.appendChild(l2);
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}
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stage.appendChild(el);
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});
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}
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buildBlocks();
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// Scale blocks that exceed safe width
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(function fitBlocks() {
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BLOCKS.forEach(function (block, bi) {
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var el = document.getElementById("b" + bi);
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el.style.opacity = "1";
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el.style.position = "relative";
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var lines = el.querySelectorAll(".caption-line");
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var maxW = 0;
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lines.forEach(function (line) {
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if (line.scrollWidth > maxW) maxW = line.scrollWidth;
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});
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if (maxW > SAFE_WIDTH) {
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var s = SAFE_WIDTH / maxW;
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el.style.transform = "scale(" + s + ")";
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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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el.style.opacity = "0";
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el.style.position = "";
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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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window.__timelines = window.__timelines || {};
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var tl = gsap.timeline({ paused: true });
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var allEls = BLOCKS.map(function (_, i) {
|
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return document.getElementById("b" + i);
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});
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function blockStart(bi) {
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return W[BLOCKS[bi].line1[0][0]].start;
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}
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BLOCKS.forEach(function (block, bi) {
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var el = allEls[bi];
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var start = blockStart(bi);
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var nextStart = bi < BLOCKS.length - 1 ? blockStart(bi + 1) : DURATION;
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allEls.forEach(function (other, oi) {
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if (oi !== bi) tl.set(other, { opacity: 0 }, start);
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});
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tl.set(el, { opacity: 1 }, start);
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||||
block.line1.forEach(function (pair, wi) {
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var wordEl = document.getElementById("b" + bi + "L1w" + wi);
|
||||
var wordStart = W[pair[0]].start;
|
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tl.set(wordEl, { opacity: 0, scale: 1.12, transformOrigin: "0% 100%" }, start);
|
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tl.to(
|
||||
wordEl,
|
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{ opacity: 1, scale: 1, duration: ENTRY_DUR, ease: "power2.out" },
|
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wordStart,
|
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function hfApplyStageConfig(data, durationS) {
|
||||
var res = (data && data.resolution) || HF_DEFAULT_RESOLUTION;
|
||||
// Mirror the published validator's <=8192 bound defensively — the
|
||||
// validator is an optional pre-flight, and an unbounded stage size
|
||||
// would OOM render workers.
|
||||
var W = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.width) || HF_DEFAULT_RESOLUTION.width)),
|
||||
);
|
||||
});
|
||||
|
||||
if (block.line2) {
|
||||
var hasEmphasis = block.line2.some(function (p) {
|
||||
return p[1] === "e";
|
||||
var H = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.height) || HF_DEFAULT_RESOLUTION.height)),
|
||||
);
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
[document.documentElement, document.body, root].forEach(function (el) {
|
||||
el.style.width = W + "px";
|
||||
el.style.height = H + "px";
|
||||
});
|
||||
var l2El = document.getElementById("b" + bi + "L2");
|
||||
if (hasEmphasis) {
|
||||
var l2Start = W[block.line2[0][0]].start;
|
||||
tl.set(l2El, { opacity: 0, x: -1920 }, start);
|
||||
tl.to(l2El, { opacity: 1, x: 0, duration: SLIDE_DUR, ease: "power2.out" }, l2Start);
|
||||
root.setAttribute("data-width", String(W));
|
||||
root.setAttribute("data-height", String(H));
|
||||
root.setAttribute("data-duration", String(durationS));
|
||||
var brand = (data && data.brand) || {};
|
||||
if (typeof brand.primaryColor === "string" && brand.primaryColor) {
|
||||
root.style.setProperty("--hf-caption-primary", brand.primaryColor);
|
||||
} else {
|
||||
tl.set(l2El, { opacity: 1 }, start);
|
||||
block.line2.forEach(function (pair, wi) {
|
||||
var wordEl = document.getElementById("b" + bi + "L2w" + wi);
|
||||
root.style.removeProperty("--hf-caption-primary");
|
||||
}
|
||||
if (typeof brand.accentColor === "string" && brand.accentColor) {
|
||||
root.style.setProperty("--hf-caption-accent", brand.accentColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-accent");
|
||||
}
|
||||
return {
|
||||
W: W,
|
||||
H: H,
|
||||
scaleX: W / 1920,
|
||||
scaleY: H / 1080,
|
||||
fontScale: Math.min(W, H) / 1080,
|
||||
};
|
||||
}
|
||||
|
||||
function hfPublishStatus(status) {
|
||||
window.__HF_CAPTION_STATUS = status;
|
||||
document
|
||||
.getElementById(HF_ROOT_ID)
|
||||
.setAttribute("data-caption-status", status.ok ? "ok" : "failed");
|
||||
}
|
||||
|
||||
function hfRunGate(words, durationS, failReason) {
|
||||
if (failReason) {
|
||||
hfPublishStatus({
|
||||
ok: false,
|
||||
present: false,
|
||||
contained: false,
|
||||
reason: failReason,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS || 0,
|
||||
});
|
||||
return;
|
||||
}
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
var rootRect = root.getBoundingClientRect();
|
||||
var groups = root.querySelectorAll(HF_GROUP_SELECTOR);
|
||||
var present = false;
|
||||
var contained = true;
|
||||
var tokens = [];
|
||||
words.forEach(function (w) {
|
||||
var t = w.text.toLowerCase().replace(/[^a-z0-9]/g, "");
|
||||
if (t) tokens.push(t);
|
||||
});
|
||||
groups.forEach(function (el) {
|
||||
var prevOpacity = el.style.opacity;
|
||||
var prevVisibility = el.style.visibility;
|
||||
el.style.opacity = "1";
|
||||
el.style.visibility = "visible";
|
||||
var r = el.getBoundingClientRect();
|
||||
if (r.width > 0 && r.height > 0) {
|
||||
var text = (el.textContent || "").toLowerCase();
|
||||
for (var i = 0; i < tokens.length; i++) {
|
||||
if (text.indexOf(tokens[i]) !== -1) {
|
||||
present = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (
|
||||
r.left < rootRect.left - 1 ||
|
||||
r.right > rootRect.right + 1 ||
|
||||
r.top < rootRect.top - 1 ||
|
||||
r.bottom > rootRect.bottom + 1
|
||||
) {
|
||||
contained = false;
|
||||
}
|
||||
}
|
||||
el.style.opacity = prevOpacity;
|
||||
el.style.visibility = prevVisibility;
|
||||
});
|
||||
hfPublishStatus({
|
||||
ok: present && contained,
|
||||
present: present,
|
||||
contained: contained,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS,
|
||||
});
|
||||
}
|
||||
|
||||
var HF_STOPWORDS = new Set([
|
||||
"the",
|
||||
"a",
|
||||
"an",
|
||||
"and",
|
||||
"or",
|
||||
"but",
|
||||
"is",
|
||||
"are",
|
||||
"was",
|
||||
"were",
|
||||
"to",
|
||||
"of",
|
||||
"in",
|
||||
"on",
|
||||
"at",
|
||||
"for",
|
||||
"with",
|
||||
"by",
|
||||
"from",
|
||||
"as",
|
||||
"it",
|
||||
"its",
|
||||
"this",
|
||||
"that",
|
||||
"these",
|
||||
"those",
|
||||
"be",
|
||||
"been",
|
||||
"have",
|
||||
"has",
|
||||
"had",
|
||||
"do",
|
||||
"does",
|
||||
"did",
|
||||
"will",
|
||||
"would",
|
||||
"could",
|
||||
"should",
|
||||
"may",
|
||||
"might",
|
||||
"must",
|
||||
"can",
|
||||
"if",
|
||||
"then",
|
||||
"so",
|
||||
"just",
|
||||
"not",
|
||||
"no",
|
||||
"yes",
|
||||
"up",
|
||||
"out",
|
||||
"about",
|
||||
"into",
|
||||
"over",
|
||||
"after",
|
||||
"before",
|
||||
"your",
|
||||
"you",
|
||||
"our",
|
||||
"we",
|
||||
"they",
|
||||
"them",
|
||||
"their",
|
||||
"there",
|
||||
"here",
|
||||
"when",
|
||||
"what",
|
||||
"which",
|
||||
"who",
|
||||
"how",
|
||||
"all",
|
||||
"any",
|
||||
"some",
|
||||
"more",
|
||||
"most",
|
||||
"other",
|
||||
"than",
|
||||
"too",
|
||||
"very",
|
||||
"also",
|
||||
"because",
|
||||
]);
|
||||
|
||||
function hfIsEmphasisWord(text) {
|
||||
var clean = String(text)
|
||||
.toLowerCase()
|
||||
.replace(/[^a-z]/g, "");
|
||||
return clean.length >= 5 && !HF_STOPWORDS.has(clean);
|
||||
}
|
||||
|
||||
var DURATION, SAFE_WIDTH;
|
||||
var ENTRY_DUR = 0.1;
|
||||
var SLIDE_DUR = 0.2;
|
||||
|
||||
var _fitCanvas = document.createElement("canvas");
|
||||
var _fitCtx = _fitCanvas.getContext("2d");
|
||||
function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
|
||||
var size = baseFontSize;
|
||||
var minSize = Math.floor(baseFontSize * 0.45);
|
||||
// minSize is a hard floor returned unverified below — self-heal
|
||||
// accepts residual overflow at the floor (clipped by the stage)
|
||||
// rather than shrinking below legibility.
|
||||
while (size > minSize) {
|
||||
_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
|
||||
if (_fitCtx.measureText(text).width <= maxWidth) return size;
|
||||
size -= 2;
|
||||
}
|
||||
return minSize;
|
||||
}
|
||||
|
||||
var CLASS_MAP = { n: "word word--normal", e: "word word--emphasis" };
|
||||
|
||||
var W = [];
|
||||
var BLOCKS = [];
|
||||
|
||||
var MAX_WORDS_PER_BLOCK = 5;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
|
||||
function hfMakeBlocks(words) {
|
||||
var blocks = [];
|
||||
var current = [];
|
||||
words.forEach(function (w, i) {
|
||||
current.push(i);
|
||||
var isEmph = hfIsEmphasisWord(w.text);
|
||||
var punctuation = /[,.:!?]$/.test(w.text);
|
||||
var next = words[i + 1];
|
||||
var pause = next ? next.start - w.end : Infinity;
|
||||
if (
|
||||
isEmph ||
|
||||
punctuation ||
|
||||
pause >= PAUSE_THRESHOLD ||
|
||||
current.length >= MAX_WORDS_PER_BLOCK ||
|
||||
!next
|
||||
) {
|
||||
if (isEmph && current.length > 1) {
|
||||
blocks.push({
|
||||
line1: current.slice(0, -1).map(function (ix) {
|
||||
return [ix, "n"];
|
||||
}),
|
||||
line2: [[current[current.length - 1], "e"]],
|
||||
});
|
||||
} else if (isEmph) {
|
||||
blocks.push({ line1: [[current[0], "e"]], line2: null });
|
||||
} else if (current.length > 3) {
|
||||
var split = Math.ceil(current.length / 2);
|
||||
blocks.push({
|
||||
line1: current.slice(0, split).map(function (ix) {
|
||||
return [ix, "n"];
|
||||
}),
|
||||
line2: current.slice(split).map(function (ix) {
|
||||
return [ix, "n"];
|
||||
}),
|
||||
});
|
||||
} else {
|
||||
blocks.push({
|
||||
line1: current.map(function (ix) {
|
||||
return [ix, "n"];
|
||||
}),
|
||||
line2: null,
|
||||
});
|
||||
}
|
||||
current = [];
|
||||
}
|
||||
});
|
||||
return blocks;
|
||||
}
|
||||
|
||||
function hfTeardown() {
|
||||
document.getElementById("caption-stage").innerHTML = "";
|
||||
}
|
||||
|
||||
function hfBuild(words, layout, durationS) {
|
||||
DURATION = durationS;
|
||||
var stage = document.getElementById("caption-stage");
|
||||
var fontNormal = Math.round(86 * layout.fontScale);
|
||||
var fontEmphasis = Math.round(180 * layout.fontScale);
|
||||
var marginX = Math.round(60 * layout.scaleX);
|
||||
var blockH = Math.round(430 * layout.fontScale);
|
||||
SAFE_WIDTH = layout.W - marginX * 2;
|
||||
stage.style.left = marginX + "px";
|
||||
stage.style.width = SAFE_WIDTH + "px";
|
||||
stage.style.height = blockH + "px";
|
||||
stage.style.top = Math.max(0, layout.H - blockH - Math.round(70 * layout.scaleY)) + "px";
|
||||
|
||||
W = words;
|
||||
BLOCKS = hfMakeBlocks(words);
|
||||
|
||||
function computeLineSize(linePairs) {
|
||||
var hasEmphasis = linePairs.some(function (p) {
|
||||
return p[1] === "e";
|
||||
});
|
||||
var lineText = linePairs
|
||||
.map(function (p) {
|
||||
return W[p[0]].text;
|
||||
})
|
||||
.join(" ");
|
||||
if (hasEmphasis) {
|
||||
return fitFontSize(lineText, fontEmphasis, "800", "Playfair Display", SAFE_WIDTH);
|
||||
}
|
||||
return fitFontSize(lineText, fontNormal, "400", "Inter", SAFE_WIDTH);
|
||||
}
|
||||
|
||||
function buildBlocks() {
|
||||
BLOCKS.forEach(function (block, bi) {
|
||||
var el = document.createElement("div");
|
||||
el.className = "caption-block";
|
||||
el.id = "b" + bi;
|
||||
|
||||
var l1Size = computeLineSize(block.line1);
|
||||
var l1 = document.createElement("div");
|
||||
l1.className = "caption-line";
|
||||
l1.id = "b" + bi + "L1";
|
||||
block.line1.forEach(function (pair, wi) {
|
||||
var span = document.createElement("span");
|
||||
span.className = CLASS_MAP[pair[1]];
|
||||
span.id = "b" + bi + "L1w" + wi;
|
||||
span.textContent = W[pair[0]].text;
|
||||
span.style.fontSize = l1Size + "px";
|
||||
l1.appendChild(span);
|
||||
});
|
||||
el.appendChild(l1);
|
||||
|
||||
if (block.line2) {
|
||||
var l2Size = computeLineSize(block.line2);
|
||||
var l2 = document.createElement("div");
|
||||
l2.className = "caption-line";
|
||||
l2.id = "b" + bi + "L2";
|
||||
block.line2.forEach(function (pair, wi) {
|
||||
var span = document.createElement("span");
|
||||
span.className = CLASS_MAP[pair[1]];
|
||||
span.id = "b" + bi + "L2w" + wi;
|
||||
span.textContent = W[pair[0]].text;
|
||||
span.style.fontSize = l2Size + "px";
|
||||
l2.appendChild(span);
|
||||
});
|
||||
el.appendChild(l2);
|
||||
}
|
||||
|
||||
stage.appendChild(el);
|
||||
});
|
||||
}
|
||||
|
||||
buildBlocks();
|
||||
|
||||
// Scale blocks that exceed safe width
|
||||
function fitBlocks() {
|
||||
BLOCKS.forEach(function (block, bi) {
|
||||
var el = document.getElementById("b" + bi);
|
||||
el.style.opacity = "1";
|
||||
el.style.position = "relative";
|
||||
var lines = el.querySelectorAll(".caption-line");
|
||||
var maxW = 0;
|
||||
lines.forEach(function (line) {
|
||||
if (line.scrollWidth > maxW) maxW = line.scrollWidth;
|
||||
});
|
||||
if (maxW > SAFE_WIDTH) {
|
||||
var s = SAFE_WIDTH / maxW;
|
||||
el.style.transform = "scale(" + s + ")";
|
||||
}
|
||||
el.style.opacity = "0";
|
||||
el.style.position = "";
|
||||
});
|
||||
}
|
||||
|
||||
fitBlocks();
|
||||
|
||||
var tl = gsap.timeline({ paused: true });
|
||||
|
||||
var allEls = BLOCKS.map(function (_, i) {
|
||||
return document.getElementById("b" + i);
|
||||
});
|
||||
|
||||
function blockStart(bi) {
|
||||
return W[BLOCKS[bi].line1[0][0]].start;
|
||||
}
|
||||
|
||||
BLOCKS.forEach(function (block, bi) {
|
||||
var el = allEls[bi];
|
||||
var start = blockStart(bi);
|
||||
var nextStart = bi < BLOCKS.length - 1 ? blockStart(bi + 1) : DURATION;
|
||||
|
||||
// Each block already owns its full opacity lifecycle (set 1 at its
|
||||
// own start, then set back to 0 at its own nextStart below), and
|
||||
// blocks occupy non-overlapping windows, so explicitly hiding every
|
||||
// OTHER block here was redundant and made timeline construction
|
||||
// O(blocks^2) — this collapsed under dense stress transcripts (many
|
||||
// single-word emphasis blocks). Removed; behavior is unchanged
|
||||
// (verified against templates.test.ts).
|
||||
|
||||
tl.set(el, { opacity: 1 }, start);
|
||||
|
||||
block.line1.forEach(function (pair, wi) {
|
||||
var wordEl = document.getElementById("b" + bi + "L1w" + wi);
|
||||
var wordStart = W[pair[0]].start;
|
||||
tl.set(wordEl, { opacity: 0, scale: 1.12, transformOrigin: "0% 100%" }, start);
|
||||
tl.to(
|
||||
@@ -399,14 +631,94 @@
|
||||
wordStart,
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
if (block.line2) {
|
||||
var hasEmphasis = block.line2.some(function (p) {
|
||||
return p[1] === "e";
|
||||
});
|
||||
var l2El = document.getElementById("b" + bi + "L2");
|
||||
if (hasEmphasis) {
|
||||
var l2Start = W[block.line2[0][0]].start;
|
||||
tl.set(l2El, { opacity: 0, x: -layout.W }, start);
|
||||
tl.to(l2El, { opacity: 1, x: 0, duration: SLIDE_DUR, ease: "power2.out" }, l2Start);
|
||||
} else {
|
||||
tl.set(l2El, { opacity: 1 }, start);
|
||||
block.line2.forEach(function (pair, wi) {
|
||||
var wordEl = document.getElementById("b" + bi + "L2w" + wi);
|
||||
var wordStart = W[pair[0]].start;
|
||||
tl.set(wordEl, { opacity: 0, scale: 1.12, transformOrigin: "0% 100%" }, start);
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ opacity: 1, scale: 1, duration: ENTRY_DUR, ease: "power2.out" },
|
||||
wordStart,
|
||||
);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
tl.set(el, { opacity: 0 }, nextStart);
|
||||
});
|
||||
|
||||
tl.to({}, { duration: DURATION }, 0);
|
||||
return tl;
|
||||
}
|
||||
|
||||
tl.set(el, { opacity: 0 }, nextStart);
|
||||
});
|
||||
var hfCurrentTimeline = null;
|
||||
|
||||
tl.to({}, { duration: DURATION }, 0);
|
||||
window.__timelines["caption-editorial-emphasis"] = tl;
|
||||
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>
|
||||
|
||||
+670
-308
File diff suppressed because it is too large
Load Diff
+386
-111
@@ -73,7 +73,7 @@
|
||||
font-weight: 800;
|
||||
font-size: 80px;
|
||||
text-transform: uppercase;
|
||||
color: #ffffff;
|
||||
color: var(--hf-caption-primary, #ffffff);
|
||||
display: inline-block;
|
||||
letter-spacing: 0.02em;
|
||||
line-height: 1;
|
||||
@@ -86,7 +86,11 @@
|
||||
.hl-word-bg {
|
||||
position: absolute;
|
||||
inset: 0;
|
||||
background: linear-gradient(135deg, #ff1745 0%, #df1238 100%);
|
||||
background: linear-gradient(
|
||||
135deg,
|
||||
var(--hf-caption-accent, #ff1745) 0%,
|
||||
color-mix(in srgb, var(--hf-caption-accent, #ff1745) 82%, #000) 100%
|
||||
);
|
||||
border-radius: 10px;
|
||||
box-shadow: 0 12px 30px rgba(229, 20, 58, 0.32);
|
||||
opacity: 0;
|
||||
@@ -117,6 +121,10 @@
|
||||
|
||||
<script>
|
||||
(function () {
|
||||
var HF_COMPOSITION_ID = "caption-highlight";
|
||||
var HF_ROOT_ID = "highlight";
|
||||
var HF_GROUP_SELECTOR = ".hl-group";
|
||||
|
||||
window.__timelines = window.__timelines || {};
|
||||
|
||||
var _fitCanvas = document.createElement("canvas");
|
||||
@@ -124,6 +132,9 @@
|
||||
function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
|
||||
var size = baseFontSize;
|
||||
var minSize = Math.floor(baseFontSize * 0.45);
|
||||
// minSize is a hard floor returned unverified below — self-heal
|
||||
// accepts residual overflow at the floor (clipped by the stage)
|
||||
// rather than shrinking below legibility.
|
||||
while (size > minSize) {
|
||||
_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
|
||||
if (_fitCtx.measureText(text).width <= maxWidth) return size;
|
||||
@@ -132,129 +143,393 @@
|
||||
return minSize;
|
||||
}
|
||||
|
||||
var WORDS = [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
];
|
||||
var HF_DEMO_DATA = {
|
||||
version: 1,
|
||||
segments: [
|
||||
{
|
||||
start: 0,
|
||||
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.",
|
||||
words: [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
],
|
||||
},
|
||||
],
|
||||
};
|
||||
|
||||
var RAW_GROUPS = [
|
||||
[0, 3],
|
||||
[4, 7],
|
||||
[8, 8],
|
||||
[9, 12],
|
||||
[13, 15],
|
||||
[16, 16],
|
||||
[17, 19],
|
||||
[20, 22],
|
||||
[23, 24],
|
||||
[25, 27],
|
||||
];
|
||||
var GROUPS = RAW_GROUPS.map(function (pair, gi) {
|
||||
var ws = pair[0],
|
||||
we = pair[1];
|
||||
var nextStart = gi + 1 < RAW_GROUPS.length ? WORDS[RAW_GROUPS[gi + 1][0]].start : 8.0;
|
||||
var gEnd = Math.min(WORDS[we].end + 0.5, nextStart - 0.05);
|
||||
return { wordStart: ws, wordEnd: we, start: WORDS[ws].start, end: gEnd };
|
||||
});
|
||||
/* ── HyperFrames caption-data runtime (shared across caption templates) ── */
|
||||
var HF_CONTRACT_VERSION = 1;
|
||||
var HF_DEFAULT_RESOLUTION = { width: 1920, height: 1080 };
|
||||
|
||||
var container = document.getElementById("hl-container");
|
||||
var tl = gsap.timeline({ paused: true });
|
||||
|
||||
GROUPS.forEach(function (g, gi) {
|
||||
var groupWords = WORDS.slice(g.wordStart, g.wordEnd + 1);
|
||||
var grp = document.createElement("div");
|
||||
grp.className = "hl-group";
|
||||
grp.id = "hl-grp-" + gi;
|
||||
|
||||
var groupText = groupWords
|
||||
.map(function (w) {
|
||||
return w.text.toUpperCase();
|
||||
})
|
||||
.join(" ");
|
||||
var computedSize = fitFontSize(groupText, 80, "800", "Montserrat", 1620);
|
||||
|
||||
groupWords.forEach(function (w, i) {
|
||||
var wi = g.wordStart + i;
|
||||
var wordEl = document.createElement("span");
|
||||
wordEl.className = "hl-word";
|
||||
wordEl.id = "hl-w-" + wi;
|
||||
wordEl.style.fontSize = computedSize + "px";
|
||||
|
||||
var bgEl = document.createElement("span");
|
||||
bgEl.className = "hl-word-bg";
|
||||
bgEl.id = "hl-bg-" + wi;
|
||||
|
||||
var textEl = document.createElement("span");
|
||||
textEl.className = "hl-word-text";
|
||||
textEl.textContent = w.text.toUpperCase();
|
||||
|
||||
wordEl.appendChild(bgEl);
|
||||
wordEl.appendChild(textEl);
|
||||
grp.appendChild(wordEl);
|
||||
function hfFlattenSegments(segments) {
|
||||
var out = [];
|
||||
(segments || []).forEach(function (seg) {
|
||||
((seg && seg.words) || []).forEach(function (w) {
|
||||
var start = Math.max(0, Number(w.start) || 0);
|
||||
out.push({
|
||||
text: String(w.word || w.text || "").trim(),
|
||||
start: start,
|
||||
end: Math.max(start, Number(w.end) || 0),
|
||||
});
|
||||
});
|
||||
});
|
||||
out.sort(function (a, b) {
|
||||
return a.start - b.start;
|
||||
});
|
||||
return out.filter(function (w) {
|
||||
return w.text.length > 0;
|
||||
});
|
||||
}
|
||||
|
||||
container.appendChild(grp);
|
||||
function hfDeriveDuration(words) {
|
||||
var end = 0;
|
||||
words.forEach(function (w) {
|
||||
if (w.end > end) end = w.end;
|
||||
});
|
||||
return end;
|
||||
}
|
||||
|
||||
tl.set(grp, { visibility: "visible" }, g.start);
|
||||
tl.fromTo(
|
||||
grp,
|
||||
{ opacity: 0 },
|
||||
{ opacity: 1, duration: 0.12, ease: "power2.out" },
|
||||
g.start,
|
||||
function hfValidate(data) {
|
||||
if (!data || typeof data !== "object") return { ok: false, reason: "not-an-object" };
|
||||
if (data.version != null) {
|
||||
// Number("v2") is NaN and NaN > x is always false — an explicit
|
||||
// finite check keeps malformed versions from slipping past the gate.
|
||||
var hfVersion = Number(data.version);
|
||||
if (!Number.isFinite(hfVersion) || Math.floor(hfVersion) > HF_CONTRACT_VERSION) {
|
||||
return { ok: false, reason: "unsupported-version" };
|
||||
}
|
||||
}
|
||||
if (!Array.isArray(data.segments) || data.segments.length === 0) {
|
||||
return { ok: false, reason: "no-segments" };
|
||||
}
|
||||
if (data.displayMode != null && data.displayMode !== "full") {
|
||||
return { ok: false, reason: "unsupported-displayMode" };
|
||||
}
|
||||
var words = hfFlattenSegments(data.segments);
|
||||
if (words.length === 0) return { ok: false, reason: "no-words" };
|
||||
return { ok: true, words: words, durationS: hfDeriveDuration(words) };
|
||||
}
|
||||
|
||||
function hfApplyStageConfig(data, durationS) {
|
||||
var res = (data && data.resolution) || HF_DEFAULT_RESOLUTION;
|
||||
// Mirror the published validator's <=8192 bound defensively — the
|
||||
// validator is an optional pre-flight, and an unbounded stage size
|
||||
// would OOM render workers.
|
||||
var W = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.width) || HF_DEFAULT_RESOLUTION.width)),
|
||||
);
|
||||
var H = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.height) || HF_DEFAULT_RESOLUTION.height)),
|
||||
);
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
[document.documentElement, document.body, root].forEach(function (el) {
|
||||
el.style.width = W + "px";
|
||||
el.style.height = H + "px";
|
||||
});
|
||||
root.setAttribute("data-width", String(W));
|
||||
root.setAttribute("data-height", String(H));
|
||||
root.setAttribute("data-duration", String(durationS));
|
||||
var brand = (data && data.brand) || {};
|
||||
if (typeof brand.primaryColor === "string" && brand.primaryColor) {
|
||||
root.style.setProperty("--hf-caption-primary", brand.primaryColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-primary");
|
||||
}
|
||||
if (typeof brand.accentColor === "string" && brand.accentColor) {
|
||||
root.style.setProperty("--hf-caption-accent", brand.accentColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-accent");
|
||||
}
|
||||
return {
|
||||
W: W,
|
||||
H: H,
|
||||
scaleX: W / 1920,
|
||||
scaleY: H / 1080,
|
||||
fontScale: Math.min(W, H) / 1080,
|
||||
};
|
||||
}
|
||||
|
||||
groupWords.forEach(function (w, i) {
|
||||
var wi = g.wordStart + i;
|
||||
var bgEl = document.getElementById("hl-bg-" + wi);
|
||||
var wordEl = document.getElementById("hl-w-" + wi);
|
||||
function hfPublishStatus(status) {
|
||||
window.__HF_CAPTION_STATUS = status;
|
||||
document
|
||||
.getElementById(HF_ROOT_ID)
|
||||
.setAttribute("data-caption-status", status.ok ? "ok" : "failed");
|
||||
}
|
||||
|
||||
tl.to(bgEl, { opacity: 1, scaleX: 1, duration: 0.15, ease: "power2.out" }, w.start);
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ filter: "brightness(1.05)", duration: 0.08, ease: "power2.out" },
|
||||
w.start,
|
||||
function hfRunGate(words, durationS, failReason) {
|
||||
if (failReason) {
|
||||
hfPublishStatus({
|
||||
ok: false,
|
||||
present: false,
|
||||
contained: false,
|
||||
reason: failReason,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS || 0,
|
||||
});
|
||||
return;
|
||||
}
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
var rootRect = root.getBoundingClientRect();
|
||||
var groups = root.querySelectorAll(HF_GROUP_SELECTOR);
|
||||
var present = false;
|
||||
var contained = true;
|
||||
var tokens = [];
|
||||
words.forEach(function (w) {
|
||||
var t = w.text.toLowerCase().replace(/[^a-z0-9]/g, "");
|
||||
if (t) tokens.push(t);
|
||||
});
|
||||
groups.forEach(function (el) {
|
||||
var prevOpacity = el.style.opacity;
|
||||
var prevVisibility = el.style.visibility;
|
||||
el.style.opacity = "1";
|
||||
el.style.visibility = "visible";
|
||||
var r = el.getBoundingClientRect();
|
||||
if (r.width > 0 && r.height > 0) {
|
||||
var text = (el.textContent || "").toLowerCase();
|
||||
for (var i = 0; i < tokens.length; i++) {
|
||||
if (text.indexOf(tokens[i]) !== -1) {
|
||||
present = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (
|
||||
r.left < rootRect.left - 1 ||
|
||||
r.right > rootRect.right + 1 ||
|
||||
r.top < rootRect.top - 1 ||
|
||||
r.bottom > rootRect.bottom + 1
|
||||
) {
|
||||
contained = false;
|
||||
}
|
||||
}
|
||||
el.style.opacity = prevOpacity;
|
||||
el.style.visibility = prevVisibility;
|
||||
});
|
||||
hfPublishStatus({
|
||||
ok: present && contained,
|
||||
present: present,
|
||||
contained: contained,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS,
|
||||
});
|
||||
}
|
||||
|
||||
var MAX_WORDS_PER_GROUP = 4;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
|
||||
function hfMakeGroups(words, fontPx, safeWidth, durationS) {
|
||||
var raw = [];
|
||||
var current = [];
|
||||
function fits(ws) {
|
||||
var text = ws
|
||||
.map(function (w) {
|
||||
return w.text.toUpperCase();
|
||||
})
|
||||
.join(" ");
|
||||
_fitCtx.font = "800 " + fontPx + "px Montserrat";
|
||||
// 1.6× headroom: fitFontSize can shrink to 45% of base
|
||||
return _fitCtx.measureText(text).width <= safeWidth * 1.6;
|
||||
}
|
||||
words.forEach(function (w, i) {
|
||||
var next = words[i + 1];
|
||||
var test = current.concat([w]);
|
||||
if (test.length > MAX_WORDS_PER_GROUP || !fits(test)) {
|
||||
if (current.length) raw.push(current);
|
||||
current = [w];
|
||||
} else {
|
||||
current.push(w);
|
||||
}
|
||||
var punctuation = /[,.:!?]$/.test(w.text);
|
||||
var pause = next ? next.start - w.end : Infinity;
|
||||
if (
|
||||
current.length &&
|
||||
(punctuation ||
|
||||
pause >= PAUSE_THRESHOLD ||
|
||||
current.length >= MAX_WORDS_PER_GROUP ||
|
||||
!next)
|
||||
) {
|
||||
raw.push(current);
|
||||
current = [];
|
||||
}
|
||||
});
|
||||
if (current.length) raw.push(current);
|
||||
return raw.map(function (ws, gi) {
|
||||
var nextStart = gi + 1 < raw.length ? raw[gi + 1][0].start : durationS;
|
||||
return {
|
||||
words: ws,
|
||||
start: ws[0].start,
|
||||
end: Math.min(
|
||||
ws[ws.length - 1].end + 0.5,
|
||||
Math.max(ws[0].start + 0.2, nextStart - 0.05),
|
||||
),
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
function hfTeardown() {
|
||||
document.getElementById("hl-container").innerHTML = "";
|
||||
}
|
||||
|
||||
function hfBuild(words, layout, durationS) {
|
||||
var fontPx = Math.round(80 * layout.fontScale);
|
||||
var safeWidth = Math.round(1620 * layout.scaleX);
|
||||
var container = document.getElementById("hl-container");
|
||||
var groups = hfMakeGroups(words, fontPx, safeWidth, durationS);
|
||||
var tl = gsap.timeline({ paused: true });
|
||||
var wordCounter = 0;
|
||||
|
||||
groups.forEach(function (g, gi) {
|
||||
var grp = document.createElement("div");
|
||||
grp.className = "hl-group";
|
||||
grp.id = "hl-grp-" + gi;
|
||||
grp.style.bottom = Math.round(140 * layout.scaleY) + "px";
|
||||
grp.style.paddingLeft = Math.round(100 * layout.scaleX) + "px";
|
||||
grp.style.paddingRight = Math.round(100 * layout.scaleX) + "px";
|
||||
|
||||
var groupText = g.words
|
||||
.map(function (w) {
|
||||
return w.text.toUpperCase();
|
||||
})
|
||||
.join(" ");
|
||||
var computedSize = fitFontSize(groupText, fontPx, "800", "Montserrat", safeWidth);
|
||||
|
||||
var ids = [];
|
||||
g.words.forEach(function (w) {
|
||||
var wi = wordCounter++;
|
||||
ids.push(wi);
|
||||
var wordEl = document.createElement("span");
|
||||
wordEl.className = "hl-word";
|
||||
wordEl.id = "hl-w-" + wi;
|
||||
wordEl.style.fontSize = computedSize + "px";
|
||||
var bgEl = document.createElement("span");
|
||||
bgEl.className = "hl-word-bg";
|
||||
bgEl.id = "hl-bg-" + wi;
|
||||
var textEl = document.createElement("span");
|
||||
textEl.className = "hl-word-text";
|
||||
textEl.textContent = w.text.toUpperCase();
|
||||
wordEl.appendChild(bgEl);
|
||||
wordEl.appendChild(textEl);
|
||||
grp.appendChild(wordEl);
|
||||
});
|
||||
container.appendChild(grp);
|
||||
|
||||
tl.set(grp, { visibility: "visible" }, g.start);
|
||||
tl.fromTo(
|
||||
grp,
|
||||
{ opacity: 0 },
|
||||
{ opacity: 1, duration: 0.12, ease: "power2.out" },
|
||||
g.start,
|
||||
);
|
||||
g.words.forEach(function (w, i) {
|
||||
var bgEl = document.getElementById("hl-bg-" + ids[i]);
|
||||
var wordEl = document.getElementById("hl-w-" + ids[i]);
|
||||
tl.to(bgEl, { opacity: 1, scaleX: 1, duration: 0.15, ease: "power2.out" }, w.start);
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ filter: "brightness(1.05)", duration: 0.08, ease: "power2.out" },
|
||||
w.start,
|
||||
);
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ filter: "brightness(1)", duration: 0.16, ease: "power2.out" },
|
||||
w.start + 0.08,
|
||||
);
|
||||
tl.to(bgEl, { opacity: 0, scaleX: 1.02, duration: 0.1, ease: "power2.in" }, w.end);
|
||||
tl.set(bgEl, { scaleX: 0 }, w.end + 0.1);
|
||||
});
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ filter: "brightness(1)", duration: 0.16, ease: "power2.out" },
|
||||
w.start + 0.08,
|
||||
grp,
|
||||
{ opacity: 0, duration: 0.1, ease: "power2.in" },
|
||||
Math.max(g.start, g.end - 0.1),
|
||||
);
|
||||
tl.to(bgEl, { opacity: 0, scaleX: 1.02, duration: 0.1, ease: "power2.in" }, w.end);
|
||||
tl.set(bgEl, { scaleX: 0 }, w.end + 0.1);
|
||||
tl.set(grp, { opacity: 0, visibility: "hidden" }, g.end);
|
||||
});
|
||||
|
||||
tl.to(grp, { opacity: 0, duration: 0.1, ease: "power2.in" }, g.end - 0.1);
|
||||
tl.set(grp, { opacity: 0, visibility: "hidden" }, g.end);
|
||||
});
|
||||
return tl;
|
||||
}
|
||||
|
||||
tl.seek(0);
|
||||
window.__timelines["caption-highlight"] = 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>
|
||||
|
||||
+476
-214
@@ -131,252 +131,514 @@
|
||||
</div>
|
||||
|
||||
<script>
|
||||
var DURATION = 8;
|
||||
var SAFE_ZONE_WIDTH = 1400;
|
||||
var PILL_MAX_WIDTH = 1400;
|
||||
var PILL_MIN_PADDING_X = 30;
|
||||
var PILL_MAX_PADDING_X = 60;
|
||||
var FONT_WIDTH_SAFETY = 1.18;
|
||||
var FONT_FAMILY = "Poppins";
|
||||
var FONT_WEIGHT = "700";
|
||||
var BASE_FONT_SIZE = 72;
|
||||
var MIN_FONT_SIZE = 52;
|
||||
var MAX_WORDS_PER_GROUP = 4;
|
||||
var WORD_SPACING = 16;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
var GROUP_END_BUFFER = 0.3;
|
||||
var COLOR_INACTIVE = "#A6A6A6";
|
||||
var COLOR_ACTIVE = "#1C1E1D";
|
||||
var COLOR_FADE_DURATION = 0.1;
|
||||
var WORD_FADE_LEAD = 0.05;
|
||||
// IIFE: keep every template's runtime private to itself so two caption
|
||||
// components pasted into one composition document can't clobber each
|
||||
// other's hfAttach/hfBuild via shared script-scope names (boot is async,
|
||||
// so collisions surface AFTER all scripts have executed).
|
||||
(function () {
|
||||
var HF_COMPOSITION_ID = "caption-pill-karaoke";
|
||||
var HF_ROOT_ID = "pill-karaoke";
|
||||
var HF_GROUP_SELECTOR = ".caption-group";
|
||||
|
||||
var TRANSCRIPT = [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
];
|
||||
var HF_DEMO_DATA = {
|
||||
version: 1,
|
||||
segments: [
|
||||
{
|
||||
start: 0,
|
||||
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.",
|
||||
words: [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
],
|
||||
},
|
||||
],
|
||||
};
|
||||
|
||||
function normalizeWords(rawWords) {
|
||||
return rawWords
|
||||
.map(function (item) {
|
||||
var text = String(item.word || item.text || "").trim();
|
||||
return {
|
||||
text: text,
|
||||
start: Math.max(0, Number(item.start) || 0),
|
||||
end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
|
||||
};
|
||||
})
|
||||
.filter(function (w) {
|
||||
/* ── HyperFrames caption-data runtime (shared across caption templates) ── */
|
||||
var HF_CONTRACT_VERSION = 1;
|
||||
var HF_DEFAULT_RESOLUTION = { width: 1920, height: 1080 };
|
||||
|
||||
function hfFlattenSegments(segments) {
|
||||
var out = [];
|
||||
(segments || []).forEach(function (seg) {
|
||||
((seg && seg.words) || []).forEach(function (w) {
|
||||
var start = Math.max(0, Number(w.start) || 0);
|
||||
out.push({
|
||||
text: String(w.word || w.text || "").trim(),
|
||||
start: start,
|
||||
end: Math.max(start, Number(w.end) || 0),
|
||||
});
|
||||
});
|
||||
});
|
||||
out.sort(function (a, b) {
|
||||
return a.start - b.start;
|
||||
});
|
||||
return out.filter(function (w) {
|
||||
return w.text.length > 0;
|
||||
});
|
||||
}
|
||||
|
||||
var measureCanvas = document.createElement("canvas");
|
||||
var measureContext = measureCanvas.getContext("2d");
|
||||
|
||||
function measureWordWidth(text, fontSize) {
|
||||
measureContext.font = FONT_WEIGHT + " " + fontSize + "px " + FONT_FAMILY;
|
||||
return measureContext.measureText(text).width * FONT_WIDTH_SAFETY;
|
||||
}
|
||||
|
||||
function measureLineWidth(words, fontSize) {
|
||||
return words.reduce(function (total, word, index) {
|
||||
return (
|
||||
total + measureWordWidth(word.text.toLowerCase(), fontSize) + (index ? WORD_SPACING : 0)
|
||||
);
|
||||
}, 0);
|
||||
}
|
||||
|
||||
function splitLinesForGroup(words, fontSize) {
|
||||
var maxLineWidth = PILL_MAX_WIDTH - PILL_MIN_PADDING_X * 2;
|
||||
if (
|
||||
words.some(function (w) {
|
||||
return measureWordWidth(w.text.toLowerCase(), fontSize) > maxLineWidth;
|
||||
})
|
||||
) {
|
||||
return null;
|
||||
}
|
||||
if (measureLineWidth(words, fontSize) <= maxLineWidth) return [words];
|
||||
var bestSplit = null;
|
||||
var bestImbalance = Infinity;
|
||||
for (var split = 1; split < words.length; split++) {
|
||||
var firstLine = words.slice(0, split);
|
||||
var secondLine = words.slice(split);
|
||||
var firstWidth = measureLineWidth(firstLine, fontSize);
|
||||
var secondWidth = measureLineWidth(secondLine, fontSize);
|
||||
if (firstWidth <= maxLineWidth && secondWidth <= maxLineWidth) {
|
||||
var imbalance = Math.abs(firstWidth - secondWidth);
|
||||
if (imbalance < bestImbalance) {
|
||||
bestSplit = [firstLine, secondLine];
|
||||
bestImbalance = imbalance;
|
||||
|
||||
function hfDeriveDuration(words) {
|
||||
var end = 0;
|
||||
words.forEach(function (w) {
|
||||
if (w.end > end) end = w.end;
|
||||
});
|
||||
return end;
|
||||
}
|
||||
|
||||
function hfValidate(data) {
|
||||
if (!data || typeof data !== "object") return { ok: false, reason: "not-an-object" };
|
||||
if (data.version != null) {
|
||||
// Number("v2") is NaN and NaN > x is always false — an explicit
|
||||
// finite check keeps malformed versions from slipping past the gate.
|
||||
var hfVersion = Number(data.version);
|
||||
if (!Number.isFinite(hfVersion) || Math.floor(hfVersion) > HF_CONTRACT_VERSION) {
|
||||
return { ok: false, reason: "unsupported-version" };
|
||||
}
|
||||
}
|
||||
if (!Array.isArray(data.segments) || data.segments.length === 0) {
|
||||
return { ok: false, reason: "no-segments" };
|
||||
}
|
||||
if (data.displayMode != null && data.displayMode !== "full") {
|
||||
return { ok: false, reason: "unsupported-displayMode" };
|
||||
}
|
||||
var words = hfFlattenSegments(data.segments);
|
||||
if (words.length === 0) return { ok: false, reason: "no-words" };
|
||||
return { ok: true, words: words, durationS: hfDeriveDuration(words) };
|
||||
}
|
||||
return bestSplit;
|
||||
}
|
||||
|
||||
function fitsInTwoLinesAtSize(words, fontSize) {
|
||||
return splitLinesForGroup(words, fontSize) !== null;
|
||||
}
|
||||
function hfApplyStageConfig(data, durationS) {
|
||||
var res = (data && data.resolution) || HF_DEFAULT_RESOLUTION;
|
||||
// Mirror the published validator's <=8192 bound defensively — the
|
||||
// validator is an optional pre-flight, and an unbounded stage size
|
||||
// would OOM render workers.
|
||||
var W = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.width) || HF_DEFAULT_RESOLUTION.width)),
|
||||
);
|
||||
var H = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.height) || HF_DEFAULT_RESOLUTION.height)),
|
||||
);
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
[document.documentElement, document.body, root].forEach(function (el) {
|
||||
el.style.width = W + "px";
|
||||
el.style.height = H + "px";
|
||||
});
|
||||
root.setAttribute("data-width", String(W));
|
||||
root.setAttribute("data-height", String(H));
|
||||
root.setAttribute("data-duration", String(durationS));
|
||||
var brand = (data && data.brand) || {};
|
||||
if (typeof brand.primaryColor === "string" && brand.primaryColor) {
|
||||
root.style.setProperty("--hf-caption-primary", brand.primaryColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-primary");
|
||||
}
|
||||
if (typeof brand.accentColor === "string" && brand.accentColor) {
|
||||
root.style.setProperty("--hf-caption-accent", brand.accentColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-accent");
|
||||
}
|
||||
return {
|
||||
W: W,
|
||||
H: H,
|
||||
scaleX: W / 1920,
|
||||
scaleY: H / 1080,
|
||||
fontScale: Math.min(W, H) / 1080,
|
||||
};
|
||||
}
|
||||
|
||||
function planPillLayout(words, fontSize) {
|
||||
var lines = splitLinesForGroup(words, fontSize) || [words];
|
||||
var widestLine = lines.reduce(function (max, lineWords) {
|
||||
return Math.max(max, measureLineWidth(lineWords, fontSize));
|
||||
}, 0);
|
||||
var availablePadding = Math.floor((PILL_MAX_WIDTH - widestLine) / 2);
|
||||
var padX = Math.max(PILL_MIN_PADDING_X, Math.min(PILL_MAX_PADDING_X, availablePadding));
|
||||
var pillWidth = Math.min(PILL_MAX_WIDTH, Math.ceil(widestLine + padX * 2));
|
||||
return { lines: lines, padX: padX, pillWidth: pillWidth };
|
||||
}
|
||||
function hfPublishStatus(status) {
|
||||
window.__HF_CAPTION_STATUS = status;
|
||||
document
|
||||
.getElementById(HF_ROOT_ID)
|
||||
.setAttribute("data-caption-status", status.ok ? "ok" : "failed");
|
||||
}
|
||||
|
||||
function makeGroups(words) {
|
||||
var groups = [];
|
||||
var current = [];
|
||||
words.forEach(function (word, index) {
|
||||
var testGroup = current.concat([word]);
|
||||
var nextWord = words[index + 1];
|
||||
var wouldExceedMaxWords = testGroup.length > MAX_WORDS_PER_GROUP;
|
||||
var wouldExceedTwoLines = !fitsInTwoLinesAtSize(testGroup, BASE_FONT_SIZE);
|
||||
if (wouldExceedMaxWords || wouldExceedTwoLines) {
|
||||
if (current.length) {
|
||||
function hfRunGate(words, durationS, failReason) {
|
||||
if (failReason) {
|
||||
hfPublishStatus({
|
||||
ok: false,
|
||||
present: false,
|
||||
contained: false,
|
||||
reason: failReason,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS || 0,
|
||||
});
|
||||
return;
|
||||
}
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
var rootRect = root.getBoundingClientRect();
|
||||
var groups = root.querySelectorAll(HF_GROUP_SELECTOR);
|
||||
var present = false;
|
||||
var contained = true;
|
||||
var tokens = [];
|
||||
words.forEach(function (w) {
|
||||
var t = w.text.toLowerCase().replace(/[^a-z0-9]/g, "");
|
||||
if (t) tokens.push(t);
|
||||
});
|
||||
groups.forEach(function (el) {
|
||||
var prevOpacity = el.style.opacity;
|
||||
var prevVisibility = el.style.visibility;
|
||||
el.style.opacity = "1";
|
||||
el.style.visibility = "visible";
|
||||
var r = el.getBoundingClientRect();
|
||||
if (r.width > 0 && r.height > 0) {
|
||||
var text = (el.textContent || "").toLowerCase();
|
||||
for (var i = 0; i < tokens.length; i++) {
|
||||
if (text.indexOf(tokens[i]) !== -1) {
|
||||
present = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (
|
||||
r.left < rootRect.left - 1 ||
|
||||
r.right > rootRect.right + 1 ||
|
||||
r.top < rootRect.top - 1 ||
|
||||
r.bottom > rootRect.bottom + 1
|
||||
) {
|
||||
contained = false;
|
||||
}
|
||||
}
|
||||
el.style.opacity = prevOpacity;
|
||||
el.style.visibility = prevVisibility;
|
||||
});
|
||||
hfPublishStatus({
|
||||
ok: present && contained,
|
||||
present: present,
|
||||
contained: contained,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS,
|
||||
});
|
||||
}
|
||||
|
||||
var DURATION, SAFE_ZONE_WIDTH, PILL_MAX_WIDTH, BASE_FONT_SIZE, MIN_FONT_SIZE, WORD_SPACING;
|
||||
var PILL_MIN_PADDING_X = 30;
|
||||
var PILL_MAX_PADDING_X = 60;
|
||||
var FONT_WIDTH_SAFETY = 1.18;
|
||||
var FONT_FAMILY = "Poppins";
|
||||
var FONT_WEIGHT = "700";
|
||||
var MAX_WORDS_PER_GROUP = 4;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
var GROUP_END_BUFFER = 0.3;
|
||||
var COLOR_INACTIVE = "#A6A6A6";
|
||||
var COLOR_ACTIVE = "#1C1E1D";
|
||||
var hfColorActive = COLOR_ACTIVE;
|
||||
var COLOR_FADE_DURATION = 0.1;
|
||||
var WORD_FADE_LEAD = 0.05;
|
||||
|
||||
function normalizeWords(rawWords) {
|
||||
return rawWords
|
||||
.map(function (item) {
|
||||
var text = String(item.word || item.text || "").trim();
|
||||
return {
|
||||
text: text,
|
||||
start: Math.max(0, Number(item.start) || 0),
|
||||
end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
|
||||
};
|
||||
})
|
||||
.filter(function (w) {
|
||||
return w.text.length > 0;
|
||||
});
|
||||
}
|
||||
|
||||
var measureCanvas = document.createElement("canvas");
|
||||
var measureContext = measureCanvas.getContext("2d");
|
||||
|
||||
function measureWordWidth(text, fontSize) {
|
||||
measureContext.font = FONT_WEIGHT + " " + fontSize + "px " + FONT_FAMILY;
|
||||
return measureContext.measureText(text).width * FONT_WIDTH_SAFETY;
|
||||
}
|
||||
|
||||
function measureLineWidth(words, fontSize) {
|
||||
return words.reduce(function (total, word, index) {
|
||||
return (
|
||||
total +
|
||||
measureWordWidth(word.text.toLowerCase(), fontSize) +
|
||||
(index ? WORD_SPACING : 0)
|
||||
);
|
||||
}, 0);
|
||||
}
|
||||
|
||||
function splitLinesForGroup(words, fontSize) {
|
||||
var maxLineWidth = PILL_MAX_WIDTH - PILL_MIN_PADDING_X * 2;
|
||||
if (
|
||||
words.some(function (w) {
|
||||
return measureWordWidth(w.text.toLowerCase(), fontSize) > maxLineWidth;
|
||||
})
|
||||
) {
|
||||
return null;
|
||||
}
|
||||
if (measureLineWidth(words, fontSize) <= maxLineWidth) return [words];
|
||||
var bestSplit = null;
|
||||
var bestImbalance = Infinity;
|
||||
for (var split = 1; split < words.length; split++) {
|
||||
var firstLine = words.slice(0, split);
|
||||
var secondLine = words.slice(split);
|
||||
var firstWidth = measureLineWidth(firstLine, fontSize);
|
||||
var secondWidth = measureLineWidth(secondLine, fontSize);
|
||||
if (firstWidth <= maxLineWidth && secondWidth <= maxLineWidth) {
|
||||
var imbalance = Math.abs(firstWidth - secondWidth);
|
||||
if (imbalance < bestImbalance) {
|
||||
bestSplit = [firstLine, secondLine];
|
||||
bestImbalance = imbalance;
|
||||
}
|
||||
}
|
||||
}
|
||||
return bestSplit;
|
||||
}
|
||||
|
||||
function fitsInTwoLinesAtSize(words, fontSize) {
|
||||
return splitLinesForGroup(words, fontSize) !== null;
|
||||
}
|
||||
|
||||
function planPillLayout(words, fontSize) {
|
||||
var lines = splitLinesForGroup(words, fontSize) || [words];
|
||||
var widestLine = lines.reduce(function (max, lineWords) {
|
||||
return Math.max(max, measureLineWidth(lineWords, fontSize));
|
||||
}, 0);
|
||||
var availablePadding = Math.floor((PILL_MAX_WIDTH - widestLine) / 2);
|
||||
var padX = Math.max(PILL_MIN_PADDING_X, Math.min(PILL_MAX_PADDING_X, availablePadding));
|
||||
var pillWidth = Math.min(PILL_MAX_WIDTH, Math.ceil(widestLine + padX * 2));
|
||||
return { lines: lines, padX: padX, pillWidth: pillWidth };
|
||||
}
|
||||
|
||||
function makeGroups(words) {
|
||||
var groups = [];
|
||||
var current = [];
|
||||
words.forEach(function (word, index) {
|
||||
var testGroup = current.concat([word]);
|
||||
var nextWord = words[index + 1];
|
||||
var wouldExceedMaxWords = testGroup.length > MAX_WORDS_PER_GROUP;
|
||||
var wouldExceedTwoLines = !fitsInTwoLinesAtSize(testGroup, BASE_FONT_SIZE);
|
||||
if (wouldExceedMaxWords || wouldExceedTwoLines) {
|
||||
if (current.length) {
|
||||
groups.push({
|
||||
words: current.slice(),
|
||||
start: current[0].start,
|
||||
end: current[current.length - 1].end,
|
||||
});
|
||||
}
|
||||
current = [word];
|
||||
return;
|
||||
}
|
||||
current.push(word);
|
||||
var hasPunctuation = /[,.:!?]$/.test(word.text);
|
||||
var pauseDuration = nextWord ? nextWord.start - word.end : 0;
|
||||
var hasNaturalPause = pauseDuration >= PAUSE_THRESHOLD;
|
||||
var maxWordsReached = current.length >= MAX_WORDS_PER_GROUP;
|
||||
if (maxWordsReached || !nextWord || hasPunctuation || hasNaturalPause) {
|
||||
groups.push({
|
||||
words: current.slice(),
|
||||
start: current[0].start,
|
||||
end: current[current.length - 1].end,
|
||||
});
|
||||
current = [];
|
||||
}
|
||||
current = [word];
|
||||
return;
|
||||
}
|
||||
current.push(word);
|
||||
var hasPunctuation = /[,.:!?]$/.test(word.text);
|
||||
var pauseDuration = nextWord ? nextWord.start - word.end : 0;
|
||||
var hasNaturalPause = pauseDuration >= PAUSE_THRESHOLD;
|
||||
var maxWordsReached = current.length >= MAX_WORDS_PER_GROUP;
|
||||
if (maxWordsReached || !nextWord || hasPunctuation || hasNaturalPause) {
|
||||
});
|
||||
if (current.length)
|
||||
groups.push({
|
||||
words: current.slice(),
|
||||
start: current[0].start,
|
||||
end: current[current.length - 1].end,
|
||||
});
|
||||
current = [];
|
||||
}
|
||||
});
|
||||
if (current.length)
|
||||
groups.push({
|
||||
words: current.slice(),
|
||||
start: current[0].start,
|
||||
end: current[current.length - 1].end,
|
||||
});
|
||||
return groups;
|
||||
}
|
||||
|
||||
function fontSizeForGroup(words) {
|
||||
var size = BASE_FONT_SIZE;
|
||||
while (size > MIN_FONT_SIZE && !fitsInTwoLinesAtSize(words, size)) {
|
||||
size -= 2;
|
||||
return groups;
|
||||
}
|
||||
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.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);
|
||||
function fontSizeForGroup(words) {
|
||||
var size = BASE_FONT_SIZE;
|
||||
// MIN_FONT_SIZE is a hard floor returned unverified below — self-heal
|
||||
// accepts residual overflow at the floor (clipped by the stage)
|
||||
// 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 };
|
||||
});
|
||||
copyEl.appendChild(lineEl);
|
||||
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);
|
||||
});
|
||||
pillEl.appendChild(copyEl);
|
||||
groupEl.appendChild(pillEl);
|
||||
stage.appendChild(groupEl);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
var WORDS = normalizeWords(TRANSCRIPT);
|
||||
var GROUPS = makeGroups(WORDS);
|
||||
buildCaptions(GROUPS);
|
||||
function hfTeardown() {
|
||||
document.getElementById("caption-stage").innerHTML = "";
|
||||
}
|
||||
|
||||
window.__timelines = window.__timelines || {};
|
||||
var tl = gsap.timeline({ paused: true });
|
||||
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);
|
||||
|
||||
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);
|
||||
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";
|
||||
|
||||
tl.set(groupEl, { opacity: 1 }, visibleStart);
|
||||
tl.set(groupEl, { opacity: 0 }, visibleEnd);
|
||||
var rootEl = document.getElementById(HF_ROOT_ID);
|
||||
var accent = getComputedStyle(rootEl).getPropertyValue("--hf-caption-accent").trim();
|
||||
hfColorActive = accent || COLOR_ACTIVE;
|
||||
|
||||
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 ? COLOR_ACTIVE : COLOR_INACTIVE }, visibleStart);
|
||||
if (isFirstWord) return;
|
||||
tl.to(
|
||||
wordEl,
|
||||
{ color: COLOR_ACTIVE, duration: COLOR_FADE_DURATION, ease: "none" },
|
||||
wordStart,
|
||||
);
|
||||
});
|
||||
});
|
||||
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";
|
||||
});
|
||||
|
||||
window.__timelines["caption-pill-karaoke"] = tl;
|
||||
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>
|
||||
|
||||
+541
-254
@@ -90,7 +90,7 @@
|
||||
max-width: 1400px;
|
||||
line-height: 1.1;
|
||||
white-space: nowrap;
|
||||
color: #ffffff;
|
||||
color: var(--hf-caption-primary, #ffffff);
|
||||
font-family: "Montserrat", Arial, sans-serif;
|
||||
font-weight: 300;
|
||||
font-size: 72px;
|
||||
@@ -117,281 +117,568 @@
|
||||
</div>
|
||||
|
||||
<script>
|
||||
var DURATION = 8;
|
||||
var SAFE_ZONE_WIDTH = 1400;
|
||||
var MAX_LINE_WIDTH = SAFE_ZONE_WIDTH - 40;
|
||||
var CAPTION_FONT_SIZE = 72;
|
||||
var MAX_WORDS_PER_GROUP = 4;
|
||||
var WORD_SPACING = 12;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
var ENTRY_DURATION = 100 / 1000;
|
||||
var WEIGHT_TRANSITION = 100 / 1000;
|
||||
var FONT_WIDTH_SAFETY = 1.14;
|
||||
var FONT_WEIGHT_LIGHT = 300;
|
||||
var FONT_WEIGHT_BOLD = 700;
|
||||
// IIFE: keep every template's runtime private to itself so two caption
|
||||
// components pasted into one composition document can't clobber each
|
||||
// other's hfAttach/hfBuild via shared script-scope names (boot is async,
|
||||
// so collisions surface AFTER all scripts have executed).
|
||||
(function () {
|
||||
var HF_COMPOSITION_ID = "caption-weight-shift";
|
||||
var HF_ROOT_ID = "weight-shift";
|
||||
var HF_GROUP_SELECTOR = ".caption-group";
|
||||
|
||||
var TRANSCRIPT = [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
];
|
||||
var HF_DEMO_DATA = {
|
||||
version: 1,
|
||||
segments: [
|
||||
{
|
||||
start: 0,
|
||||
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.",
|
||||
words: [
|
||||
{ text: "Every", start: 0.0, end: 0.3 },
|
||||
{ text: "great", start: 0.3, end: 0.55 },
|
||||
{ text: "video", start: 0.55, end: 0.85 },
|
||||
{ text: "starts", start: 0.85, end: 1.1 },
|
||||
{ text: "with", start: 1.1, end: 1.25 },
|
||||
{ text: "a", start: 1.25, end: 1.35 },
|
||||
{ text: "single", start: 1.35, end: 1.65 },
|
||||
{ text: "frame.", start: 1.65, end: 2.0 },
|
||||
{ text: "HyperFrames", start: 2.1, end: 2.65 },
|
||||
{ text: "lets", start: 2.65, end: 2.85 },
|
||||
{ text: "you", start: 2.85, end: 2.95 },
|
||||
{ text: "write", start: 2.95, end: 3.15 },
|
||||
{ text: "HTML", start: 3.15, end: 3.55 },
|
||||
{ text: "and", start: 3.55, end: 3.65 },
|
||||
{ text: "render", start: 3.65, end: 3.95 },
|
||||
{ text: "professional", start: 3.95, end: 4.45 },
|
||||
{ text: "video.", start: 4.45, end: 4.8 },
|
||||
{ text: "No", start: 4.9, end: 5.05 },
|
||||
{ text: "timeline.", start: 5.05, end: 5.45 },
|
||||
{ text: "No", start: 5.5, end: 5.65 },
|
||||
{ text: "drag", start: 5.65, end: 5.85 },
|
||||
{ text: "and", start: 5.85, end: 5.95 },
|
||||
{ text: "drop.", start: 5.95, end: 6.25 },
|
||||
{ text: "Just", start: 6.35, end: 6.55 },
|
||||
{ text: "code", start: 6.55, end: 6.8 },
|
||||
{ text: "that", start: 6.8, end: 6.95 },
|
||||
{ text: "becomes", start: 6.95, end: 7.3 },
|
||||
{ text: "cinema.", start: 7.3, end: 7.7 },
|
||||
],
|
||||
},
|
||||
],
|
||||
};
|
||||
|
||||
function normalizeWords(rawWords) {
|
||||
return rawWords
|
||||
.map(function (item) {
|
||||
return {
|
||||
text: String(item.word || item.text || "").trim(),
|
||||
start: Math.max(0, Number(item.start) || 0),
|
||||
end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
|
||||
};
|
||||
})
|
||||
.filter(function (word) {
|
||||
return word.text.length > 0;
|
||||
/* ── HyperFrames caption-data runtime (shared across caption templates) ── */
|
||||
var HF_CONTRACT_VERSION = 1;
|
||||
var HF_DEFAULT_RESOLUTION = { width: 1920, height: 1080 };
|
||||
|
||||
function hfFlattenSegments(segments) {
|
||||
var out = [];
|
||||
(segments || []).forEach(function (seg) {
|
||||
((seg && seg.words) || []).forEach(function (w) {
|
||||
var start = Math.max(0, Number(w.start) || 0);
|
||||
out.push({
|
||||
text: String(w.word || w.text || "").trim(),
|
||||
start: start,
|
||||
end: Math.max(start, Number(w.end) || 0),
|
||||
});
|
||||
});
|
||||
});
|
||||
out.sort(function (a, b) {
|
||||
return a.start - b.start;
|
||||
});
|
||||
return out.filter(function (w) {
|
||||
return w.text.length > 0;
|
||||
});
|
||||
}
|
||||
|
||||
var _fitCanvas = document.createElement("canvas");
|
||||
var _fitCtx = _fitCanvas.getContext("2d");
|
||||
function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
|
||||
var size = baseFontSize;
|
||||
var minSize = Math.floor(baseFontSize * 0.45);
|
||||
while (size > minSize) {
|
||||
_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
|
||||
if (_fitCtx.measureText(text).width <= maxWidth) return size;
|
||||
size -= 2;
|
||||
}
|
||||
return minSize;
|
||||
}
|
||||
|
||||
var measureCanvas = document.createElement("canvas");
|
||||
var measureContext = measureCanvas.getContext("2d");
|
||||
measureContext.font = "700 " + CAPTION_FONT_SIZE + "px Montserrat";
|
||||
|
||||
function measureWord(word) {
|
||||
return measureContext.measureText(word.text.toLowerCase()).width * FONT_WIDTH_SAFETY;
|
||||
}
|
||||
|
||||
function measureLineWidth(words) {
|
||||
return words.reduce(function (total, word, index) {
|
||||
return total + measureWord(word) + (index ? WORD_SPACING : 0);
|
||||
}, 0);
|
||||
}
|
||||
|
||||
function fitsInTwoLines(words) {
|
||||
return measureLineWidth(words) <= MAX_LINE_WIDTH * 1.8;
|
||||
}
|
||||
|
||||
function splitLines(words) {
|
||||
if (words.length < 2) {
|
||||
return [{ words: words, startIndex: 0 }];
|
||||
function hfDeriveDuration(words) {
|
||||
var end = 0;
|
||||
words.forEach(function (w) {
|
||||
if (w.end > end) end = w.end;
|
||||
});
|
||||
return end;
|
||||
}
|
||||
var bestSplit = Math.ceil(words.length / 2);
|
||||
var bestDiff = Infinity;
|
||||
for (var s = 1; s < words.length; s++) {
|
||||
var w1 = measureLineWidth(words.slice(0, s));
|
||||
var w2 = measureLineWidth(words.slice(s));
|
||||
if (w1 <= MAX_LINE_WIDTH && w2 <= MAX_LINE_WIDTH) {
|
||||
var diff = Math.abs(w1 - w2);
|
||||
if (diff < bestDiff) {
|
||||
bestDiff = diff;
|
||||
bestSplit = s;
|
||||
|
||||
function hfValidate(data) {
|
||||
if (!data || typeof data !== "object") return { ok: false, reason: "not-an-object" };
|
||||
if (data.version != null) {
|
||||
// Number("v2") is NaN and NaN > x is always false — an explicit
|
||||
// finite check keeps malformed versions from slipping past the gate.
|
||||
var hfVersion = Number(data.version);
|
||||
if (!Number.isFinite(hfVersion) || Math.floor(hfVersion) > HF_CONTRACT_VERSION) {
|
||||
return { ok: false, reason: "unsupported-version" };
|
||||
}
|
||||
}
|
||||
if (!Array.isArray(data.segments) || data.segments.length === 0) {
|
||||
return { ok: false, reason: "no-segments" };
|
||||
}
|
||||
if (data.displayMode != null && data.displayMode !== "full") {
|
||||
return { ok: false, reason: "unsupported-displayMode" };
|
||||
}
|
||||
var words = hfFlattenSegments(data.segments);
|
||||
if (words.length === 0) return { ok: false, reason: "no-words" };
|
||||
return { ok: true, words: words, durationS: hfDeriveDuration(words) };
|
||||
}
|
||||
var result = [];
|
||||
var line1 = words.slice(0, bestSplit);
|
||||
var line2 = words.slice(bestSplit);
|
||||
if (line1.length) result.push({ words: line1, startIndex: 0 });
|
||||
if (line2.length) result.push({ words: line2, startIndex: line1.length });
|
||||
return result;
|
||||
}
|
||||
|
||||
function avoidSingleWordGroups(groups) {
|
||||
var out = [];
|
||||
groups.forEach(function (group) {
|
||||
if (
|
||||
group.words.length === 1 &&
|
||||
out.length > 0 &&
|
||||
out[out.length - 1].words.length < MAX_WORDS_PER_GROUP
|
||||
) {
|
||||
out[out.length - 1] = makeGroup(out[out.length - 1].words.concat(group.words));
|
||||
function hfApplyStageConfig(data, durationS) {
|
||||
var res = (data && data.resolution) || HF_DEFAULT_RESOLUTION;
|
||||
// Mirror the published validator's <=8192 bound defensively — the
|
||||
// validator is an optional pre-flight, and an unbounded stage size
|
||||
// would OOM render workers.
|
||||
var W = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.width) || HF_DEFAULT_RESOLUTION.width)),
|
||||
);
|
||||
var H = Math.min(
|
||||
8192,
|
||||
Math.max(1, Math.round(Number(res.height) || HF_DEFAULT_RESOLUTION.height)),
|
||||
);
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
[document.documentElement, document.body, root].forEach(function (el) {
|
||||
el.style.width = W + "px";
|
||||
el.style.height = H + "px";
|
||||
});
|
||||
root.setAttribute("data-width", String(W));
|
||||
root.setAttribute("data-height", String(H));
|
||||
root.setAttribute("data-duration", String(durationS));
|
||||
var brand = (data && data.brand) || {};
|
||||
if (typeof brand.primaryColor === "string" && brand.primaryColor) {
|
||||
root.style.setProperty("--hf-caption-primary", brand.primaryColor);
|
||||
} else {
|
||||
out.push(group);
|
||||
root.style.removeProperty("--hf-caption-primary");
|
||||
}
|
||||
});
|
||||
|
||||
for (var i = 0; i < out.length; i++) {
|
||||
if (out[i].words.length !== 1) continue;
|
||||
if (i + 1 < out.length && out[i + 1].words.length < MAX_WORDS_PER_GROUP) {
|
||||
out[i] = makeGroup(out[i].words.concat(out[i + 1].words));
|
||||
out.splice(i + 1, 1);
|
||||
} else if (i > 0 && out[i - 1].words.length < MAX_WORDS_PER_GROUP) {
|
||||
out[i - 1] = makeGroup(out[i - 1].words.concat(out[i].words));
|
||||
out.splice(i, 1);
|
||||
i--;
|
||||
if (typeof brand.accentColor === "string" && brand.accentColor) {
|
||||
root.style.setProperty("--hf-caption-accent", brand.accentColor);
|
||||
} else {
|
||||
root.style.removeProperty("--hf-caption-accent");
|
||||
}
|
||||
return {
|
||||
W: W,
|
||||
H: H,
|
||||
scaleX: W / 1920,
|
||||
scaleY: H / 1080,
|
||||
fontScale: Math.min(W, H) / 1080,
|
||||
};
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
function hfPublishStatus(status) {
|
||||
window.__HF_CAPTION_STATUS = status;
|
||||
document
|
||||
.getElementById(HF_ROOT_ID)
|
||||
.setAttribute("data-caption-status", status.ok ? "ok" : "failed");
|
||||
}
|
||||
|
||||
function makeGroups(words) {
|
||||
var groups = [];
|
||||
var current = [];
|
||||
words.forEach(function (word, index) {
|
||||
var nextWord = words[index + 1];
|
||||
var testGroup = current.concat([word]);
|
||||
if (testGroup.length > MAX_WORDS_PER_GROUP || !fitsInTwoLines(testGroup)) {
|
||||
if (current.length) groups.push(makeGroup(current));
|
||||
current = [word];
|
||||
function hfRunGate(words, durationS, failReason) {
|
||||
if (failReason) {
|
||||
hfPublishStatus({
|
||||
ok: false,
|
||||
present: false,
|
||||
contained: false,
|
||||
reason: failReason,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS || 0,
|
||||
});
|
||||
return;
|
||||
}
|
||||
current.push(word);
|
||||
var punctuation = /[,.:!?]$/.test(word.text);
|
||||
var pause = nextWord ? nextWord.start - word.end : 0;
|
||||
if (
|
||||
!nextWord ||
|
||||
punctuation ||
|
||||
pause >= PAUSE_THRESHOLD ||
|
||||
current.length >= MAX_WORDS_PER_GROUP
|
||||
) {
|
||||
groups.push(makeGroup(current));
|
||||
current = [];
|
||||
}
|
||||
});
|
||||
if (current.length) groups.push(makeGroup(current));
|
||||
return avoidSingleWordGroups(groups);
|
||||
}
|
||||
|
||||
function makeGroup(words) {
|
||||
return {
|
||||
words: words.slice(),
|
||||
lines: splitLines(words),
|
||||
start: words[0].start,
|
||||
end: words[words.length - 1].end,
|
||||
};
|
||||
}
|
||||
|
||||
function buildCaptions(groups) {
|
||||
var stage = document.getElementById("caption-stage");
|
||||
groups.forEach(function (group, groupIndex) {
|
||||
var groupText = group.words
|
||||
.map(function (w) {
|
||||
return w.text.toLowerCase();
|
||||
})
|
||||
.join(" ");
|
||||
var computedSize = fitFontSize(
|
||||
groupText,
|
||||
CAPTION_FONT_SIZE,
|
||||
"700",
|
||||
"Montserrat",
|
||||
MAX_LINE_WIDTH,
|
||||
);
|
||||
var groupEl = document.createElement("div");
|
||||
var copyEl = document.createElement("div");
|
||||
groupEl.id = "caption-group-" + groupIndex;
|
||||
groupEl.className = "caption-group";
|
||||
copyEl.className = "caption-copy";
|
||||
group.lines.forEach(function (line, lineIndex) {
|
||||
var lineEl = document.createElement("div");
|
||||
lineEl.className = "caption-line";
|
||||
lineEl.id = "caption-group-" + groupIndex + "-line-" + lineIndex;
|
||||
lineEl.style.fontWeight = lineIndex === 0 ? FONT_WEIGHT_BOLD : FONT_WEIGHT_LIGHT;
|
||||
lineEl.style.fontSize = computedSize + "px";
|
||||
line.words.forEach(function (word, wordIndex) {
|
||||
var wordEl = document.createElement("span");
|
||||
wordEl.textContent = word.text.toLowerCase();
|
||||
wordEl.style.display = "inline-block";
|
||||
lineEl.appendChild(wordEl);
|
||||
});
|
||||
copyEl.appendChild(lineEl);
|
||||
var root = document.getElementById(HF_ROOT_ID);
|
||||
var rootRect = root.getBoundingClientRect();
|
||||
var groups = root.querySelectorAll(HF_GROUP_SELECTOR);
|
||||
var present = false;
|
||||
var contained = true;
|
||||
var tokens = [];
|
||||
words.forEach(function (w) {
|
||||
var t = w.text.toLowerCase().replace(/[^a-z0-9]/g, "");
|
||||
if (t) tokens.push(t);
|
||||
});
|
||||
groups.forEach(function (el) {
|
||||
var prevOpacity = el.style.opacity;
|
||||
var prevVisibility = el.style.visibility;
|
||||
el.style.opacity = "1";
|
||||
el.style.visibility = "visible";
|
||||
var r = el.getBoundingClientRect();
|
||||
if (r.width > 0 && r.height > 0) {
|
||||
var text = (el.textContent || "").toLowerCase();
|
||||
for (var i = 0; i < tokens.length; i++) {
|
||||
if (text.indexOf(tokens[i]) !== -1) {
|
||||
present = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (
|
||||
r.left < rootRect.left - 1 ||
|
||||
r.right > rootRect.right + 1 ||
|
||||
r.top < rootRect.top - 1 ||
|
||||
r.bottom > rootRect.bottom + 1
|
||||
) {
|
||||
contained = false;
|
||||
}
|
||||
}
|
||||
el.style.opacity = prevOpacity;
|
||||
el.style.visibility = prevVisibility;
|
||||
});
|
||||
hfPublishStatus({
|
||||
ok: present && contained,
|
||||
present: present,
|
||||
contained: contained,
|
||||
version: HF_CONTRACT_VERSION,
|
||||
durationS: durationS,
|
||||
});
|
||||
groupEl.appendChild(copyEl);
|
||||
stage.appendChild(groupEl);
|
||||
});
|
||||
}
|
||||
|
||||
var WORDS = normalizeWords(TRANSCRIPT);
|
||||
var GROUPS = makeGroups(WORDS);
|
||||
buildCaptions(GROUPS);
|
||||
|
||||
window.__timelines = window.__timelines || {};
|
||||
var tl = gsap.timeline({ paused: true });
|
||||
|
||||
var visibleStarts = GROUPS.map(function (group, groupIndex) {
|
||||
var prev = GROUPS[groupIndex - 1];
|
||||
var availableGap = prev ? Math.max(0, group.start - prev.end) : ENTRY_DURATION;
|
||||
var entryLead = Math.min(ENTRY_DURATION, availableGap);
|
||||
return Math.max(0, group.start - entryLead);
|
||||
});
|
||||
|
||||
var allGroupEls = GROUPS.map(function (_, i) {
|
||||
return document.getElementById("caption-group-" + i);
|
||||
});
|
||||
|
||||
GROUPS.forEach(function (group, groupIndex) {
|
||||
var groupEl = allGroupEls[groupIndex];
|
||||
var visibleStart = visibleStarts[groupIndex];
|
||||
var visibleEnd = groupIndex < GROUPS.length - 1 ? visibleStarts[groupIndex + 1] : DURATION;
|
||||
|
||||
allGroupEls.forEach(function (otherEl, otherIndex) {
|
||||
if (otherIndex !== groupIndex) tl.set(otherEl, { opacity: 0 }, visibleStart);
|
||||
});
|
||||
|
||||
tl.set(groupEl, { opacity: 0, scale: 0.85 }, visibleStart);
|
||||
tl.to(
|
||||
groupEl,
|
||||
{ opacity: 1, scale: 1, duration: ENTRY_DURATION, ease: "power3.out", force3D: true },
|
||||
visibleStart,
|
||||
);
|
||||
|
||||
if (group.lines.length === 2) {
|
||||
var line1El = document.getElementById("caption-group-" + groupIndex + "-line-0");
|
||||
var line2El = document.getElementById("caption-group-" + groupIndex + "-line-1");
|
||||
var line2FirstWord = group.lines[1].words[0];
|
||||
var switchTime = line2FirstWord.start;
|
||||
|
||||
tl.to(
|
||||
line1El,
|
||||
{ fontWeight: FONT_WEIGHT_LIGHT, duration: WEIGHT_TRANSITION, ease: "power2.out" },
|
||||
switchTime,
|
||||
);
|
||||
tl.to(
|
||||
line2El,
|
||||
{ fontWeight: FONT_WEIGHT_BOLD, duration: WEIGHT_TRANSITION, ease: "power2.out" },
|
||||
switchTime,
|
||||
);
|
||||
}
|
||||
|
||||
tl.set(groupEl, { opacity: 0 }, visibleEnd);
|
||||
});
|
||||
var SAFE_ZONE_WIDTH, MAX_LINE_WIDTH, CAPTION_FONT_SIZE, DURATION;
|
||||
var MAX_WORDS_PER_GROUP = 4;
|
||||
var WORD_SPACING_DESIGN = 12;
|
||||
var WORD_SPACING;
|
||||
var PAUSE_THRESHOLD = 0.1;
|
||||
var ENTRY_DURATION = 100 / 1000;
|
||||
var WEIGHT_TRANSITION = 100 / 1000;
|
||||
var FONT_WIDTH_SAFETY = 1.14;
|
||||
var FONT_WEIGHT_LIGHT = 300;
|
||||
var FONT_WEIGHT_BOLD = 700;
|
||||
|
||||
window.__timelines["caption-weight-shift"] = tl;
|
||||
function normalizeWords(rawWords) {
|
||||
return rawWords
|
||||
.map(function (item) {
|
||||
return {
|
||||
text: String(item.word || item.text || "").trim(),
|
||||
start: Math.max(0, Number(item.start) || 0),
|
||||
end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
|
||||
};
|
||||
})
|
||||
.filter(function (word) {
|
||||
return word.text.length > 0;
|
||||
});
|
||||
}
|
||||
|
||||
var _fitCanvas = document.createElement("canvas");
|
||||
var _fitCtx = _fitCanvas.getContext("2d");
|
||||
function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
|
||||
var size = baseFontSize;
|
||||
var minSize = Math.floor(baseFontSize * 0.45);
|
||||
// minSize is a hard floor returned unverified below — self-heal
|
||||
// accepts residual overflow at the floor (clipped by the stage)
|
||||
// rather than shrinking below legibility.
|
||||
while (size > minSize) {
|
||||
_fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
|
||||
if (_fitCtx.measureText(text).width <= maxWidth) return size;
|
||||
size -= 2;
|
||||
}
|
||||
return minSize;
|
||||
}
|
||||
|
||||
var measureCanvas = document.createElement("canvas");
|
||||
var measureContext = measureCanvas.getContext("2d");
|
||||
|
||||
function measureWord(word) {
|
||||
return measureContext.measureText(word.text.toLowerCase()).width * FONT_WIDTH_SAFETY;
|
||||
}
|
||||
|
||||
function measureLineWidth(words) {
|
||||
return words.reduce(function (total, word, index) {
|
||||
return total + measureWord(word) + (index ? WORD_SPACING : 0);
|
||||
}, 0);
|
||||
}
|
||||
|
||||
function fitsInTwoLines(words) {
|
||||
return measureLineWidth(words) <= MAX_LINE_WIDTH * 1.8;
|
||||
}
|
||||
|
||||
function splitLines(words) {
|
||||
if (words.length < 2) {
|
||||
return [{ words: words, startIndex: 0 }];
|
||||
}
|
||||
var bestSplit = Math.ceil(words.length / 2);
|
||||
var bestDiff = Infinity;
|
||||
for (var s = 1; s < words.length; s++) {
|
||||
var w1 = measureLineWidth(words.slice(0, s));
|
||||
var w2 = measureLineWidth(words.slice(s));
|
||||
if (w1 <= MAX_LINE_WIDTH && w2 <= MAX_LINE_WIDTH) {
|
||||
var diff = Math.abs(w1 - w2);
|
||||
if (diff < bestDiff) {
|
||||
bestDiff = diff;
|
||||
bestSplit = s;
|
||||
}
|
||||
}
|
||||
}
|
||||
var result = [];
|
||||
var line1 = words.slice(0, bestSplit);
|
||||
var line2 = words.slice(bestSplit);
|
||||
if (line1.length) result.push({ words: line1, startIndex: 0 });
|
||||
if (line2.length) result.push({ words: line2, startIndex: line1.length });
|
||||
return result;
|
||||
}
|
||||
|
||||
function avoidSingleWordGroups(groups) {
|
||||
var out = [];
|
||||
groups.forEach(function (group) {
|
||||
if (
|
||||
group.words.length === 1 &&
|
||||
out.length > 0 &&
|
||||
out[out.length - 1].words.length < MAX_WORDS_PER_GROUP &&
|
||||
// makeGroups guards every addition with fitsInTwoLines; this
|
||||
// second-pass merge must too, or it can produce a group that
|
||||
// splitLines cannot fit within MAX_LINE_WIDTH.
|
||||
fitsInTwoLines(out[out.length - 1].words.concat(group.words))
|
||||
) {
|
||||
out[out.length - 1] = makeGroup(out[out.length - 1].words.concat(group.words));
|
||||
} else {
|
||||
out.push(group);
|
||||
}
|
||||
});
|
||||
|
||||
for (var i = 0; i < out.length; i++) {
|
||||
if (out[i].words.length !== 1) continue;
|
||||
if (
|
||||
i + 1 < out.length &&
|
||||
out[i + 1].words.length < MAX_WORDS_PER_GROUP &&
|
||||
fitsInTwoLines(out[i].words.concat(out[i + 1].words))
|
||||
) {
|
||||
out[i] = makeGroup(out[i].words.concat(out[i + 1].words));
|
||||
out.splice(i + 1, 1);
|
||||
} else if (
|
||||
i > 0 &&
|
||||
out[i - 1].words.length < MAX_WORDS_PER_GROUP &&
|
||||
fitsInTwoLines(out[i - 1].words.concat(out[i].words))
|
||||
) {
|
||||
out[i - 1] = makeGroup(out[i - 1].words.concat(out[i].words));
|
||||
out.splice(i, 1);
|
||||
i--;
|
||||
}
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
function makeGroups(words) {
|
||||
var groups = [];
|
||||
var current = [];
|
||||
words.forEach(function (word, index) {
|
||||
var nextWord = words[index + 1];
|
||||
var testGroup = current.concat([word]);
|
||||
if (testGroup.length > MAX_WORDS_PER_GROUP || !fitsInTwoLines(testGroup)) {
|
||||
if (current.length) groups.push(makeGroup(current));
|
||||
current = [word];
|
||||
return;
|
||||
}
|
||||
current.push(word);
|
||||
var punctuation = /[,.:!?]$/.test(word.text);
|
||||
var pause = nextWord ? nextWord.start - word.end : 0;
|
||||
if (
|
||||
!nextWord ||
|
||||
punctuation ||
|
||||
pause >= PAUSE_THRESHOLD ||
|
||||
current.length >= MAX_WORDS_PER_GROUP
|
||||
) {
|
||||
groups.push(makeGroup(current));
|
||||
current = [];
|
||||
}
|
||||
});
|
||||
if (current.length) groups.push(makeGroup(current));
|
||||
return avoidSingleWordGroups(groups);
|
||||
}
|
||||
|
||||
function makeGroup(words) {
|
||||
return {
|
||||
words: words.slice(),
|
||||
lines: splitLines(words),
|
||||
start: words[0].start,
|
||||
end: words[words.length - 1].end,
|
||||
};
|
||||
}
|
||||
|
||||
function buildCaptions(groups) {
|
||||
var stage = document.getElementById("caption-stage");
|
||||
groups.forEach(function (group, groupIndex) {
|
||||
// Fit the WIDEST split line, not the joined group text: the group
|
||||
// renders across up to two lines, so sizing against the joined
|
||||
// string shrank two-line groups that already fit at full size.
|
||||
var widestLineText = "";
|
||||
var widestLineWidth = -1;
|
||||
group.lines.forEach(function (line) {
|
||||
var lineWidth = measureLineWidth(line.words);
|
||||
if (lineWidth > widestLineWidth) {
|
||||
widestLineWidth = lineWidth;
|
||||
widestLineText = line.words
|
||||
.map(function (w) {
|
||||
return w.text.toLowerCase();
|
||||
})
|
||||
.join(" ");
|
||||
}
|
||||
});
|
||||
var computedSize = fitFontSize(
|
||||
widestLineText,
|
||||
CAPTION_FONT_SIZE,
|
||||
"700",
|
||||
"Montserrat",
|
||||
MAX_LINE_WIDTH,
|
||||
);
|
||||
var groupEl = document.createElement("div");
|
||||
var copyEl = document.createElement("div");
|
||||
groupEl.id = "caption-group-" + groupIndex;
|
||||
groupEl.className = "caption-group";
|
||||
copyEl.className = "caption-copy";
|
||||
group.lines.forEach(function (line, lineIndex) {
|
||||
var lineEl = document.createElement("div");
|
||||
lineEl.className = "caption-line";
|
||||
lineEl.id = "caption-group-" + groupIndex + "-line-" + lineIndex;
|
||||
lineEl.style.fontWeight = lineIndex === 0 ? FONT_WEIGHT_BOLD : FONT_WEIGHT_LIGHT;
|
||||
lineEl.style.fontSize = computedSize + "px";
|
||||
lineEl.style.maxWidth = SAFE_ZONE_WIDTH + "px";
|
||||
line.words.forEach(function (word, wordIndex) {
|
||||
var wordEl = document.createElement("span");
|
||||
wordEl.textContent = word.text.toLowerCase();
|
||||
wordEl.style.display = "inline-block";
|
||||
lineEl.appendChild(wordEl);
|
||||
});
|
||||
copyEl.appendChild(lineEl);
|
||||
});
|
||||
groupEl.appendChild(copyEl);
|
||||
stage.appendChild(groupEl);
|
||||
});
|
||||
}
|
||||
|
||||
function hfTeardown() {
|
||||
document.getElementById("caption-stage").innerHTML = "";
|
||||
}
|
||||
|
||||
function hfBuild(words, layout, durationS) {
|
||||
DURATION = durationS;
|
||||
CAPTION_FONT_SIZE = Math.round(72 * layout.fontScale);
|
||||
SAFE_ZONE_WIDTH = Math.round(1400 * layout.scaleX);
|
||||
MAX_LINE_WIDTH = SAFE_ZONE_WIDTH - Math.round(40 * layout.scaleX);
|
||||
WORD_SPACING = Math.round(WORD_SPACING_DESIGN * layout.fontScale);
|
||||
|
||||
var stage = document.getElementById("caption-stage");
|
||||
var stageHeight = Math.round(278 * layout.fontScale);
|
||||
stage.style.width = SAFE_ZONE_WIDTH + "px";
|
||||
stage.style.height = stageHeight + "px";
|
||||
stage.style.bottom = Math.round(100 * layout.scaleY) + "px";
|
||||
|
||||
measureContext.font = "700 " + CAPTION_FONT_SIZE + "px Montserrat";
|
||||
|
||||
var WORDS = normalizeWords(words);
|
||||
var GROUPS = makeGroups(WORDS);
|
||||
buildCaptions(GROUPS);
|
||||
// set per-group sizing to match the runtime stage
|
||||
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 });
|
||||
|
||||
var visibleStarts = GROUPS.map(function (group, groupIndex) {
|
||||
var prev = GROUPS[groupIndex - 1];
|
||||
var availableGap = prev ? Math.max(0, group.start - prev.end) : ENTRY_DURATION;
|
||||
var entryLead = Math.min(ENTRY_DURATION, availableGap);
|
||||
return Math.max(0, group.start - entryLead);
|
||||
});
|
||||
|
||||
var allGroupEls = GROUPS.map(function (_, i) {
|
||||
return document.getElementById("caption-group-" + i);
|
||||
});
|
||||
|
||||
GROUPS.forEach(function (group, groupIndex) {
|
||||
var groupEl = allGroupEls[groupIndex];
|
||||
var visibleStart = visibleStarts[groupIndex];
|
||||
var visibleEnd =
|
||||
groupIndex < GROUPS.length - 1 ? visibleStarts[groupIndex + 1] : DURATION;
|
||||
|
||||
// Each group already owns its full opacity lifecycle (set 0 at its
|
||||
// own visibleStart, animated to 1, then set back to 0 at its own
|
||||
// visibleEnd below), and groups occupy non-overlapping windows, so
|
||||
// explicitly hiding every OTHER group here was redundant and made
|
||||
// timeline construction O(groups^2) — this collapsed under dense
|
||||
// stress transcripts (many short groups). Removed; behavior is
|
||||
// unchanged (verified against templates.test.ts).
|
||||
|
||||
tl.set(groupEl, { opacity: 0, scale: 0.85 }, visibleStart);
|
||||
tl.to(
|
||||
groupEl,
|
||||
{ opacity: 1, scale: 1, duration: ENTRY_DURATION, ease: "power3.out", force3D: true },
|
||||
visibleStart,
|
||||
);
|
||||
|
||||
if (group.lines.length === 2) {
|
||||
var line1El = document.getElementById("caption-group-" + groupIndex + "-line-0");
|
||||
var line2El = document.getElementById("caption-group-" + groupIndex + "-line-1");
|
||||
var line2FirstWord = group.lines[1].words[0];
|
||||
var switchTime = line2FirstWord.start;
|
||||
|
||||
tl.to(
|
||||
line1El,
|
||||
{ fontWeight: FONT_WEIGHT_LIGHT, duration: WEIGHT_TRANSITION, ease: "power2.out" },
|
||||
switchTime,
|
||||
);
|
||||
tl.to(
|
||||
line2El,
|
||||
{ fontWeight: FONT_WEIGHT_BOLD, duration: WEIGHT_TRANSITION, ease: "power2.out" },
|
||||
switchTime,
|
||||
);
|
||||
}
|
||||
|
||||
tl.set(groupEl, { opacity: 0 }, visibleEnd);
|
||||
});
|
||||
|
||||
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>
|
||||
|
||||
Reference in New Issue
Block a user