Files
hyperframes/docs/catalog/components/caption-matrix-decode.mdx
miga-heygenandMiguel Ángel 7b5fdb1ad2 fix(docs): emit catalog source accordion titles as plain strings (#4006)
The generated catalog pages rendered the "Source" accordion title as a
JSX expression, `<Accordion title={`name.html`}>`. Mintlify's search
indexer stringifies expression attribute nodes rather than evaluating
them, so every one of the 399 catalog pages surfaced its Source section
in search results as "[object Object]" (visible on the Scroll Feed page,
among others).

The template literal carried no escaping benefit: every title is a
single-segment `name.html` path, and a double-quoted JSX string handles
it directly. Introduce `mdxStringAttribute`, which emits a plain
`name="value"` attribute and escapes `& " < { }` as HTML character
references (MDX decodes references inside quoted attribute values, and
unlike JSON.stringify it does not rely on backslash escapes, which JSX
strings do not honour). Use it for both the Source accordion title and
the preview iframe title, and regenerate the catalog pages.

Regenerated with `npx tsx scripts/generate-catalog-pages.ts`; the only
change across the 399 pages is the one Accordion title line each.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 11:55:00 -04:00

297 lines
10 KiB
Plaintext

---
title: "Matrix Decode"
description: "Character scramble animation before text reveal"
---
import { InstallCommand } from "/snippets/install-command.jsx";
## Install
<InstallCommand command="npx hyperframes add caption-matrix-decode" item="caption-matrix-decode" />
That writes one file: `compositions/components/caption-matrix-decode.html`.
<iframe
className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800"
title="caption-matrix-decode preview"
loading="lazy"
srcDoc={`<!doctype html><html><head><meta charset="utf-8"><style>html,body{margin:0;height:100%;overflow:hidden;background:transparent}hyperframes-player{display:block;width:100%;height:100%}</style><script src="https://cdn.jsdelivr.net/npm/@hyperframes/player@latest/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/components/caption-matrix-decode.json").then(function(r){return r.json()}).then(function(d){var p=document.createElement("hyperframes-player");p.setAttribute("srcdoc",d.html);p.setAttribute("controls","");p.setAttribute("autoplay","");p.setAttribute("loop","");p.setAttribute("muted","");p.setAttribute("poster","https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/caption-matrix-decode.png");document.body.appendChild(p)});<\/script></body></html>`}
/>
## Source
<Accordion title="caption-matrix-decode.html">
```html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1920, height=1080" />
<title>Matrix Decode</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@700&display=swap"
rel="stylesheet"
/>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
*,
*::before,
*::after {
box-sizing: border-box;
}
html,
body {
width: 1920px;
height: 1080px;
margin: 0;
overflow: hidden;
background: transparent;
}
#matrix-decode {
pointer-events: none;
position: relative;
width: 1920px;
height: 1080px;
overflow: hidden;
background: transparent;
}
.sc-overlay {
position: absolute;
inset: 0;
background: transparent;
z-index: 1;
pointer-events: none;
}
#sc-container {
position: absolute;
inset: 0;
z-index: 10;
pointer-events: none;
}
.sc-group {
position: absolute;
bottom: 120px;
left: 0;
width: 100%;
display: flex;
flex-wrap: wrap;
align-items: flex-end;
justify-content: center;
gap: 24px;
padding: 0 80px;
opacity: 0;
visibility: hidden;
}
.sc-word-wrap {
font-family: "Space Grotesk", sans-serif;
font-weight: 700;
font-size: 96px;
color: #00ff41;
display: inline-block;
letter-spacing: 0.04em;
line-height: 1;
position: relative;
}
.sc-real {
opacity: 0;
visibility: hidden;
}
.sc-scr0,
.sc-scr1 {
position: absolute;
left: 0;
top: 0;
white-space: nowrap;
opacity: 0;
visibility: hidden;
}
</style>
</head>
<body>
<div
id="matrix-decode"
data-composition-id="caption-matrix-decode"
data-timeline-locked
data-start="0"
data-duration="8"
data-fps="30"
data-width="1920"
data-height="1080"
>
<div class="sc-overlay"></div>
<div id="sc-container"></div>
</div>
<script>
(function () {
window.__timelines = window.__timelines || {};
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;
}
function mulberry32(seed) {
return function () {
seed |= 0;
seed = (seed + 0x6d2b79f5) | 0;
var t = Math.imul(seed ^ (seed >>> 15), 1 | seed);
t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
};
}
var ALPHANUM = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
function scrambleChars(seed, length) {
var rng = mulberry32(seed);
var result = "";
for (var i = 0; i < length; i++) {
result += ALPHANUM[Math.floor(rng() * ALPHANUM.length)];
}
return result;
}
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 GROUPS = [
{ wordStart: 0, wordEnd: 3, start: 0.0, end: 1.35 },
{ wordStart: 4, wordEnd: 7, start: 1.1, end: 2.35 },
{ wordStart: 8, wordEnd: 8, start: 2.1, end: 2.9 },
{ wordStart: 9, wordEnd: 12, start: 2.65, end: 3.8 },
{ wordStart: 13, wordEnd: 15, start: 3.55, end: 4.7 },
{ wordStart: 16, wordEnd: 16, start: 3.95, end: 5.0 },
{ wordStart: 17, wordEnd: 19, start: 4.9, end: 5.7 },
{ wordStart: 20, wordEnd: 22, start: 5.65, end: 6.5 },
{ wordStart: 23, wordEnd: 24, start: 6.35, end: 7.05 },
{ wordStart: 25, wordEnd: 27, start: 6.8, end: 7.9 },
];
var container = document.getElementById("sc-container");
var tl = gsap.timeline({ paused: true });
GROUPS.forEach(function (g, gi) {
var groupWords = WORDS.slice(g.wordStart, g.wordEnd + 1);
var groupText = groupWords
.map(function (w) {
return w.text;
})
.join(" ");
var fontSize = fitFontSize(groupText, 96, "700", "'Space Grotesk', sans-serif", 1760);
var grp = document.createElement("div");
grp.className = "sc-group";
grp.id = "sc-grp-" + gi;
groupWords.forEach(function (w, i) {
var wi = g.wordStart + i;
var wordWrap = document.createElement("span");
wordWrap.className = "sc-word-wrap";
wordWrap.id = "sc-ww-" + wi;
wordWrap.style.fontSize = fontSize + "px";
var real = document.createElement("span");
real.className = "sc-real";
real.id = "sc-real-" + wi;
real.textContent = w.text;
wordWrap.appendChild(real);
var scr0 = document.createElement("span");
scr0.className = "sc-scr0";
scr0.id = "sc-scr0-" + wi;
scr0.textContent = scrambleChars(wi * 1000 + 0, w.text.length);
wordWrap.appendChild(scr0);
var scr1 = document.createElement("span");
scr1.className = "sc-scr1";
scr1.id = "sc-scr1-" + wi;
scr1.textContent = scrambleChars(wi * 1000 + 1, w.text.length);
wordWrap.appendChild(scr1);
grp.appendChild(wordWrap);
});
container.appendChild(grp);
tl.set(grp, { visibility: "visible", opacity: 0 }, g.start);
tl.fromTo(grp, { opacity: 0 }, { opacity: 1, duration: 0.1 }, g.start);
groupWords.forEach(function (w, i) {
var wi = g.wordStart + i;
var realEl = document.getElementById("sc-real-" + wi);
var scr0El = document.getElementById("sc-scr0-" + wi);
var scr1El = document.getElementById("sc-scr1-" + wi);
tl.set(scr0El, { autoAlpha: 1 }, w.start);
tl.set(scr1El, { autoAlpha: 1 }, w.start + 0.1);
tl.set(scr0El, { autoAlpha: 0 }, w.start + 0.1);
tl.set(realEl, { autoAlpha: 1 }, w.start + 0.2);
tl.set(scr1El, { autoAlpha: 0 }, w.start + 0.2);
});
tl.to(grp, { opacity: 0, duration: 0.12 }, g.end - 0.12);
tl.set(grp, { opacity: 0, visibility: "hidden" }, g.end);
});
window.__timelines["caption-matrix-decode"] = tl;
})();
</script>
</body>
</html>
```
</Accordion>
## Usage
Open `compositions/components/caption-matrix-decode.html` and paste its contents into your composition. See the comment header in the file for detailed instructions.
{/* hf:generated-footer */}
Tagged `captions` `caption-style` `matrix` `scramble` `decode`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)