mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-07 01:56:04 +00:00
This reverts commit 3b53bfd2f7.
This commit is contained in:
Miguel Ángel
+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,
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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.",
|
||||
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>
|
||||
|
||||
Reference in New Issue
Block a user