mirror of
https://github.com/heygen-com/hyperframes.git
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This reverts commit 3b53bfd2f7.
This commit is contained in:
Miguel Ángel
@@ -1,237 +0,0 @@
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<!doctype html>
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<!--
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headline-slam: HyperFrames video primitive
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One headline scales down from 1.6 to rest with expo.out weight. Its landing
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drives a deterministic three-frame stage shake, followed by a quiet drift
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and a fast upward exit.
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Variables:
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text: headline copy
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accent_word_index: zero-based word index to color, out of range colors none
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accent: green, blue, or violet accent color
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shadow: drop shadow under the headline, on by default
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Envelope, fixed IN and OUT with elastic HOLD:
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IN_BASE = 0.72s, headline slam and three-frame impact shake
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HOLD = max(0, D - IN - OUT), one subtle drift cycle
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OUT_BASE = 0.46s, headline whips upward out of frame
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If D is shorter than IN_BASE + OUT_BASE, IN and OUT compress together.
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The timeline is never time-scaled.
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Mount contract: the runtime clones only this template. #root fills the host
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box, establishes the container query basis, and has no data-width or
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data-height. One paused timeline registers under the literal headline-slam
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key.
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-->
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<html
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lang="en"
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data-composition-id="headline-slam"
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data-composition-duration="3.5"
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data-composition-variables='[
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{ "id": "text", "type": "string", "role": "content", "label": "Headline", "description": "Text displayed as the headline.", "default": "Ship it today" },
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{ "id": "accent_word_index", "type": "number", "role": "content", "label": "Accent word index", "description": "Zero-based word index to color. Out of range leaves the headline unaccented.", "default": 1, "step": 1 },
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{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Color applied to the selected word.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
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{ "id": "shadow", "type": "boolean", "role": "style", "label": "Shadow", "description": "Drop shadow cast under the headline. On by default; set false for a flat matte look.", "default": true }
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]'
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>
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<head>
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<meta charset="UTF-8" />
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<title>Headline Slam</title>
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</head>
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<body>
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<template>
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<div id="root" data-composition-id="headline-slam" data-duration="3.5" data-fps="30">
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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#root {
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position: absolute;
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inset: 0;
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overflow: hidden;
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container-type: size;
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isolation: isolate;
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color: var(--fg, #f8fafc);
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font-family: var(--font-display, Inter, system-ui, sans-serif);
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pointer-events: none;
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}
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.hs-clip,
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.hs-stage {
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position: absolute;
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inset: 0;
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width: 100cqw;
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height: 100cqh;
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}
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.hs-clip {
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overflow: hidden;
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}
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.hs-stage {
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display: grid;
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place-items: center;
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will-change: transform;
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}
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.hs-headline {
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display: flex;
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align-items: center;
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justify-content: center;
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gap: 2cqw;
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width: 90cqw;
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min-height: 22cqh;
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color: var(--fg, #f8fafc);
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font-size: var(--hs-font-size, 10.5cqw);
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font-weight: 900;
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line-height: 0.88;
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letter-spacing: -0.5cqw;
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text-align: center;
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white-space: nowrap;
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transform-origin: 50% 50%;
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will-change: transform, opacity;
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}
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/* Shadow is on by default; the shadow variable opts out of it. */
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.hs-headline.hs-shadow {
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text-shadow: 0 1.2cqh 4.5cqh color-mix(in srgb, #000 52%, transparent);
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}
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.hs-word {
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display: inline-block;
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}
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.hs-word-accent {
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color: var(--hs-accent, #71f5a7);
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}
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</style>
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<div
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id="headline-slam-clip"
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class="hs-clip clip"
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data-start="0"
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data-duration="3.5"
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data-track-index="0"
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>
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<div class="hs-stage">
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<div class="hs-headline" role="heading" aria-level="1"></div>
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</div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<script>
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(function () {
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"use strict";
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var root = document.getElementById("root");
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var stage = root.querySelector(".hs-stage");
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var headline = root.querySelector(".hs-headline");
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var vars =
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window.__hyperframes && window.__hyperframes.getVariables
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? window.__hyperframes.getVariables()
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: {};
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var text = vars.text == null ? "Ship it today" : String(vars.text);
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var indexValue = Number(vars.accent_word_index);
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var accentWordIndex = Number.isFinite(indexValue) ? Math.trunc(indexValue) : 1;
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var accentColors = {
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green: "var(--brand, #71f5a7)",
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blue: "var(--accent, #61a8ff)",
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violet: "var(--accent-2, #b895ff)",
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};
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var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
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? vars.accent
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: "green";
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var shadow = !(vars.shadow === false || vars.shadow === "false");
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var words = text.trim() === "" ? [] : text.trim().split(/\s+/);
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root.style.setProperty("--hs-accent", accentColors[accent]);
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headline.classList.toggle("hs-shadow", shadow);
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headline.setAttribute("aria-label", text);
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words.forEach(function (word, index) {
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var span = document.createElement("span");
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span.className = index === accentWordIndex ? "hs-word hs-word-accent" : "hs-word";
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span.textContent = word;
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span.setAttribute("aria-hidden", "true");
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headline.appendChild(span);
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});
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// Deterministic fit from character count: DOM measurement is zero at
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// mount time (the template is not laid out yet), so it never fires.
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// 0.62 approximates the average glyph/em width of the bold face; the
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// 56cqw rest-state cap keeps the 1.6x overshoot peak inside 90cqw.
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var approxWidthCqw = text.length * 10.5 * 0.62;
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if (approxWidthCqw > 56) {
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var fitted = Math.max(3.5, 56 / (text.length * 0.62));
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root.style.setProperty("--hs-font-size", fitted.toFixed(2) + "cqw");
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}
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var IN_BASE = 0.72;
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var OUT_BASE = 0.46;
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var LAND_AT_BASE = 0.58;
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var SHAKE_FRAME_BASE = 1 / 30;
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var duration = Math.max(0.001, parseFloat(root.dataset.duration || "3.5"));
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var baseTotal = IN_BASE + OUT_BASE;
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var envelopeScale = duration < baseTotal ? duration / baseTotal : 1;
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var IN = IN_BASE * envelopeScale;
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var OUT = OUT_BASE * envelopeScale;
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var LAND_AT = LAND_AT_BASE * envelopeScale;
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var SHAKE_FRAME = SHAKE_FRAME_BASE * envelopeScale;
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var HOLD = Math.max(0, duration - IN - OUT);
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var HOLD_START = IN;
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var OUT_START = IN + HOLD;
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var tl = gsap.timeline({ paused: true });
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tl.fromTo(
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headline,
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{ scale: 1.6, opacity: 0, y: 0 },
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{ scale: 1, opacity: 1, y: 0, duration: LAND_AT, ease: "expo.out" },
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0,
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);
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tl.to(
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stage,
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{ x: "0.55cqw", y: "-0.3cqh", duration: SHAKE_FRAME, ease: "power2.out" },
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LAND_AT,
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);
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tl.to(stage, {
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x: "-0.38cqw",
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y: "0.2cqh",
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duration: SHAKE_FRAME,
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ease: "power2.out",
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});
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tl.to(stage, { x: 0, y: 0, duration: SHAKE_FRAME, ease: "power2.out" });
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if (HOLD > 0) {
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tl.fromTo(
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headline,
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{ y: 0 },
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{
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y: "-0.55cqh",
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duration: HOLD / 2,
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ease: "sine.inOut",
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yoyo: true,
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repeat: 1,
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immediateRender: false,
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},
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HOLD_START,
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);
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}
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tl.to(headline, { y: "-120cqh", duration: OUT, ease: "power4.in" }, OUT_START);
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tl.seek(0);
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window.__timelines = window.__timelines || {};
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window.__timelines["headline-slam"] = tl;
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})();
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</script>
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</div>
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</template>
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</body>
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</html>
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