Files
hyperframes/docs/catalog/blocks/code-morph.mdx
Ular Kimsanov a06fdfe26e docs(catalog): put each item page's title, description and Docs text in the server HTML (#6711)
* docs(catalog): put each item page's title, description and Docs text in the server HTML

Mintlify renders snippet components in the browser only, so everything inside
CatalogDetail (title, standfirst, the Docs tab) was missing from the HTML search
engines read: 448 catalog pages served Googlebot no body text. The generator now
writes the H1 and standfirst as page markup above the component and the Docs tab
as page markup after it, shown with that tab (docs/custom.css). The component no
longer draws its own title. Pages patched structurally only; registry drift on 14
pages is left for a regeneration of its own.

* docs(catalog): keep the title's top spacing the component gave it

* fix(docs): catalog titles and descriptions keep markdown markers literal

MDX reads text inside the static <h1> and <p> as inline markdown, so @_blue_sweater_
rendered as italic blue_sweater. mdxText now writes backslash, backtick, * _ [ ] ~ as
character references too, with a unit test; the four affected pages are re-escaped.
2026-10-30 15:48:25 +00:00

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This file contains ambiguous Unicode characters
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---
title: "Code Morph"
description: "One snippet transforms into another — tokens glide between positions, leavers fade out, enterers fade in. Shiki Magic Move re-driven as a paused GSAP timeline."
mode: "frame"
---
import { CatalogDetail, CatalogSlot } from "/snippets/catalog-detail.jsx";
import { InstallCommand } from "/snippets/install-command.jsx";
<div className="hf-ve-static-head not-prose">
<h1>Code Morph</h1>
<p>One snippet transforms into another — tokens glide between positions, leavers fade out, enterers fade in. Shiki Magic Move re-driven as a paused GSAP timeline.</p>
</div>
<CatalogDetail
previewSrc="/public/catalog/blocks/code-morph.json"
compositionId="code-morph"
compositionSrc="compositions/code-morph.html"
title="Code Morph"
variables={[]}
meta={{"duration":7,"width":1920,"height":1080,"category":"Code Animations","badge":"Stable","codeLines":1216}}
attribution={{"path":"registry/blocks/code-morph","tags":["code","code-animation","morph","refactor","developer"]}}
hasCode
rawUrl="https://raw.githubusercontent.com/heygen-com/hyperframes/main/registry/blocks/code-morph/code-morph.html"
>
<CatalogSlot slot="code">
```html code-morph.html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1920, height=1080" />
<title>Code Morph</title>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html,
body {
width: 1920px;
height: 1080px;
overflow: hidden;
background: #05070b;
}
#root {
position: relative;
width: 1920px;
height: 1080px;
font-family: "JetBrains Mono", monospace;
color: #e6edf3;
}
.bg-field {
position: absolute;
inset: 0;
background: radial-gradient(1200px 700px at 50% 18%, #0e1726 0%, #070b12 55%, #05070b 100%);
}
.bg-grid {
position: absolute;
inset: 0;
background-image:
linear-gradient(rgba(88, 166, 255, 0.05) 1px, transparent 1px),
linear-gradient(90deg, rgba(88, 166, 255, 0.05) 1px, transparent 1px);
background-size: 64px 64px;
mask-image: radial-gradient(1100px 620px at 50% 42%, #000 0%, transparent 78%);
}
.bg-glow {
position: absolute;
width: 900px;
height: 900px;
border-radius: 50%;
filter: blur(120px);
opacity: 0.5;
}
.bg-glow.a {
background: #1f6feb55;
left: -180px;
top: -200px;
}
.bg-glow.b {
background: #2ea04355;
right: -200px;
bottom: -260px;
}
.editor {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 1380px;
height: 800px;
background: #0b0f17;
border: 1px solid #1d2733;
border-radius: 16px;
box-shadow:
0 40px 120px rgba(0, 0, 0, 0.6),
0 2px 0 rgba(255, 255, 255, 0.03) inset;
overflow: hidden;
display: flex;
flex-direction: column;
}
.titlebar {
height: 56px;
flex: 0 0 56px;
display: flex;
align-items: center;
gap: 16px;
padding: 0 22px;
background: linear-gradient(#11161f, #0c111a);
border-bottom: 1px solid #1b2430;
}
.dots {
display: flex;
gap: 10px;
}
.dot {
width: 14px;
height: 14px;
border-radius: 50%;
}
.dot.r {
background: #ff5f57;
}
.dot.y {
background: #febc2e;
}
.dot.g {
background: #28c840;
}
.filename {
font-size: 19px;
color: #8b98a9;
letter-spacing: 0.2px;
}
.filename .accent {
color: #d6e2f0;
}
.code-surface {
position: relative;
flex: 1 1 auto;
overflow: hidden;
}
.scene {
position: absolute;
inset: 0;
opacity: 0;
will-change: opacity;
}
.code {
position: absolute;
top: 38px;
left: 0;
right: 0;
padding: 0 44px 0 104px;
font-size: 30px;
line-height: 46px;
font-variant-ligatures: none;
tab-size: 2;
}
.gutter {
position: absolute;
top: 38px;
left: 0;
width: 84px;
padding-right: 18px;
font-size: 30px;
line-height: 46px;
text-align: right;
color: #828c9b;
user-select: none;
}
.ln {
display: block;
height: 46px;
}
.line {
display: block;
min-height: 46px;
white-space: pre;
position: relative;
z-index: 1;
}
.tok {
display: inline-block;
white-space: pre;
will-change: transform, opacity;
}
.caret {
position: absolute;
top: 0;
left: 0;
width: 3px;
height: 32px;
margin-top: 6px;
background: #58a6ff;
border-radius: 1px;
z-index: 3;
}
.hl-box {
position: absolute;
background: rgba(88, 166, 255, 0.16);
border-left: 3px solid #58a6ff;
border-radius: 6px;
z-index: 0;
overflow: hidden;
}
.diff-line {
display: block;
min-height: 0;
line-height: 46px;
white-space: pre;
position: relative;
overflow: hidden;
padding-left: 14px;
}
.diff-sign {
display: inline-block;
width: 22px;
color: #41506220;
}
.diff-del {
background: rgba(248, 81, 73, 0.12);
box-shadow: inset 3px 0 #f85149;
}
.diff-add {
background: rgba(63, 185, 80, 0.12);
box-shadow: inset 3px 0 #3fb950;
}
.diff-del .diff-sign {
color: #f85149;
}
.diff-add .diff-sign {
color: #3fb950;
}
.flight-block {
position: absolute;
white-space: pre;
font-size: 27px;
line-height: 40px;
padding: 11px 22px;
border-radius: 11px;
background: #0f1722;
border: 1px solid #233044;
box-shadow: 0 16px 44px rgba(0, 0, 0, 0.5);
will-change: transform, opacity;
}
.flight-target {
position: absolute;
border: 1.5px dashed #2a3a4f;
border-radius: 14px;
opacity: 0;
}
</style>
</head>
<body>
<div
id="root"
data-composition-id="code-morph"
data-start="0"
data-duration="7"
data-width="1920"
data-height="1080"
>
<div class="bg-field" data-layout-ignore></div>
<div class="bg-grid" data-layout-ignore></div>
<div class="bg-glow a" data-layout-ignore></div>
<div class="bg-glow b" data-layout-ignore></div>
<div class="editor" id="editor" data-layout-ignore>
<div class="titlebar">
<div class="dots">
<span class="dot r"></span><span class="dot y"></span><span class="dot g"></span>
</div>
<span class="filename"><span class="accent">refactor.js</span> — Code Morph</span>
</div>
<div class="code-surface" id="surface"></div>
</div>
</div>
<script>
window.__TOKENS = {
morph: {
lang: "js",
theme: "github-dark",
bg: "#24292e",
fg: "#e1e4e8",
states: [
{
code: "function activeNames(users) {\n const out = []\n for (const u of users) {\n if (u.active) {\n out.push(u.name)\n }\n }\n return out\n}",
tokens: [
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-0",
content: "function",
color: "#F97583",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-1",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-2",
content: "activeNames",
color: "#B392F0",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-3",
content: "(",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-4",
content: "users",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-5",
content: ") {",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-6",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-7",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-8",
content: "const",
color: "#F97583",
fontStyle: 0,
},
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key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-9",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-10",
content: "out",
color: "#79B8FF",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-11",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-12",
content: "=",
color: "#F97583",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-13",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-14",
content: "[]",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-15",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-16",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-17",
content: "for",
color: "#F97583",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-18",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-19",
content: "(",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-20",
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color: "#F97583",
fontStyle: 0,
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fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-22",
content: "u",
color: "#79B8FF",
fontStyle: 0,
},
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color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-24",
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color: "#F97583",
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{
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{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-26",
content: "users) {",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-27",
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},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-31",
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color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-32",
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color: "#e1e4e8",
fontStyle: 0,
},
{
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content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-34",
content: "out.",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-35",
content: "push",
color: "#B392F0",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-36",
content: "(u.name)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-37",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
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color: "#e1e4e8",
fontStyle: 0,
},
{
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color: "#E1E4E8",
fontStyle: 0,
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{
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color: "#e1e4e8",
fontStyle: 0,
},
{
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color: "#e1e4e8",
fontStyle: 0,
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{
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fontStyle: 0,
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{
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fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-45",
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color: "#F97583",
fontStyle: 0,
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color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-47",
content: "out",
color: "#E1E4E8",
fontStyle: 0,
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{
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color: "#e1e4e8",
fontStyle: 0,
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content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
],
},
{
code: "function activeNames(users) {\n return users\n .filter((u) => u.active)\n .map((u) => u.name)\n}",
tokens: [
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-0",
content: "function",
color: "#F97583",
fontStyle: 0,
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color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-2",
content: "activeNames",
color: "#B392F0",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-3",
content: "(",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-4",
content: "users",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-5",
content: ") {",
color: "#E1E4E8",
fontStyle: 0,
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},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-20",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-21",
content: "u.active)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-32",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-23",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-24",
content: ".",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-25",
content: "map",
color: "#B392F0",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-26",
content: "((",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-27",
content: "u",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-28",
content: ")",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-29",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-30",
content: "=>",
color: "#F97583",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-31",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-32",
content: "u.name)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-48",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-49",
content: "}",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-35",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
],
},
{
code: "const activeNames = (users) =>\n users.filter((u) => u.active).map((u) => u.name)",
tokens: [
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-0",
content: "const",
color: "#F97583",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-1",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-2",
content: "activeNames",
color: "#B392F0",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-3",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-4",
content: "=",
color: "#F97583",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-5",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-3",
content: "(",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-4",
content: "users",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-8",
content: ")",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-9",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-10",
content: "=>",
color: "#F97583",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-6",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "cfXrCrtsS58oX7T9biOwW03CrZ_pwg-hqJg3fwn5hnI-7",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-13",
content: "users.",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-14",
content: "filter",
color: "#B392F0",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-15",
content: "((",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-16",
content: "u",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-17",
content: ")",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-18",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-19",
content: "=>",
color: "#F97583",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-20",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-21",
content: "u.active).",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-25",
content: "map",
color: "#B392F0",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-26",
content: "((",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-27",
content: "u",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-28",
content: ")",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-29",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-30",
content: "=>",
color: "#F97583",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-31",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "KLQk7s1CBJrsZpvwO8c9gegRDNZCQJPa3bwM3fTRST0-32",
content: "u.name)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "VbRPavhdCez1s__eeEAO0aeZdY95Uxi4jXsI1pxJzag-30",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
],
},
],
},
};
window.__BLOCK = { id: "code-morph", effect: "morph", seq: "morph", duration: 7 };
</script>
<script>
// hf-code-anim.js — self-contained code-animation engine for HyperFrames registry blocks.
//
// Reuses Shiki Magic Move's baked output (window.__TOKENS, baked at author time) and
// drives the animation as a PAUSED GSAP timeline the HyperFrames engine seeks per frame —
// NOT CSS transitions (those break under non-sequential frame seeking). FLIP measurement
// runs once inside document.fonts.ready (glyph metrics must be final). Each block sets
// window.__BLOCK = { id, effect, seq, line?, duration } and includes this engine; the
// engine builds one scene that fills the composition and registers window.__timelines[id].
(function () {
"use strict";
var T = window.__TOKENS || {};
function lineDiv() {
var d = document.createElement("div");
d.className = "line";
return d;
}
// Render a code state's keyed tokens into codeEl as lines of inline-block .tok spans.
function renderState(codeEl, state) {
codeEl.textContent = "";
var keyToEl = new Map();
var line = lineDiv();
codeEl.appendChild(line);
for (var i = 0; i < state.tokens.length; i++) {
var t = state.tokens[i];
if (t.content === "\n") {
line = lineDiv();
codeEl.appendChild(line);
continue;
}
var span = document.createElement("span");
span.className = "tok";
span.textContent = t.content;
span.style.color = t.color;
if (t.fontStyle & 1) span.style.fontStyle = "italic";
if (t.fontStyle & 2) span.style.fontWeight = "700";
line.appendChild(span);
keyToEl.set(t.key, span);
}
var last = codeEl.lastChild;
if (last && last.className === "line" && last.children.length === 0)
codeEl.removeChild(last);
return keyToEl;
}
function rectsOf(keyToEl) {
var m = new Map();
keyToEl.forEach(function (el, k) {
var r = el.getBoundingClientRect();
m.set(k, { left: r.left, top: r.top });
});
return m;
}
function makeScene(surface, withGutter) {
var scene = document.createElement("div");
scene.className = "scene";
if (withGutter) {
var g = document.createElement("div");
g.className = "gutter";
scene.appendChild(g);
}
var code = document.createElement("div");
code.className = "code";
scene.appendChild(code);
surface.appendChild(scene);
return { scene: scene, code: code, gutter: scene.querySelector(".gutter") };
}
function fillGutter(g, n) {
var html = "";
for (var i = 1; i <= n; i++) html += '<span class="ln">' + i + "</span>";
g.innerHTML = html;
}
function splitLines(state) {
var lines = [{ text: "", tokens: [] }];
for (var i = 0; i < state.tokens.length; i++) {
var t = state.tokens[i];
if (t.content === "\n") {
lines.push({ text: "", tokens: [] });
continue;
}
var cur = lines[lines.length - 1];
cur.tokens.push(t);
cur.text += t.content;
}
if (lines.length && lines[lines.length - 1].tokens.length === 0) lines.pop();
return lines;
}
function lineDiff(a, b) {
var n = a.length;
var m = b.length;
var dp = [];
for (var i = 0; i <= n; i++) dp.push(new Array(m + 1).fill(0));
for (var i = n - 1; i >= 0; i--) {
for (var j = m - 1; j >= 0; j--) {
dp[i][j] =
a[i].text === b[j].text
? dp[i + 1][j + 1] + 1
: Math.max(dp[i + 1][j], dp[i][j + 1]);
}
}
var ops = [];
var i = 0;
var j = 0;
while (i < n && j < m) {
if (a[i].text === b[j].text) {
ops.push({ type: "same", line: b[j] });
i++;
j++;
} else if (dp[i + 1][j] >= dp[i][j + 1]) {
ops.push({ type: "del", line: a[i] });
i++;
} else {
ops.push({ type: "add", line: b[j] });
j++;
}
}
while (i < n) ops.push({ type: "del", line: a[i++] });
while (j < m) ops.push({ type: "add", line: b[j++] });
return ops;
}
// ---- single-scene effect builders (fade in, play, hold to end) -------------
var FADE = 0.45;
function morph(tl, surface, states, start) {
var STEP = 1.2;
var HOLD = 1.0;
var t = start;
for (var s = 0; s < states.length - 1; s++) {
var parts = makeScene(surface, false);
var code = parts.code;
var fromEls = renderState(code, states[s]);
var fromR = rectsOf(fromEls);
var toEls = renderState(code, states[s + 1]);
var toR = rectsOf(toEls);
var base = code.getBoundingClientRect();
var seg = gsap.timeline();
var ENTER_AT = STEP * 0.45;
var FD = STEP * 0.5;
toEls.forEach(function (el, k) {
var fr = fromR.get(k);
var tr = toR.get(k);
if (fr) {
seg.fromTo(
el,
{ x: fr.left - tr.left, y: fr.top - tr.top },
{ x: 0, y: 0, duration: STEP, ease: "power2.inOut" },
0,
);
} else {
seg.fromTo(
el,
{ opacity: 0 },
{ opacity: 1, duration: FD, ease: "power1.out" },
ENTER_AT,
);
}
});
var toKeys = new Set(toEls.keys());
var fromState = states[s];
for (var i = 0; i < fromState.tokens.length; i++) {
var tok = fromState.tokens[i];
if (tok.content === "\n" || toKeys.has(tok.key) || !fromR.has(tok.key)) continue;
var r = fromR.get(tok.key);
var span = document.createElement("span");
span.className = "tok";
span.textContent = tok.content;
span.style.position = "absolute";
span.style.left = r.left - base.left + "px";
span.style.top = r.top - base.top + "px";
span.style.color = tok.color;
code.appendChild(span);
seg.fromTo(span, { opacity: 1 }, { opacity: 0, duration: FD, ease: "power1.in" }, 0);
}
var segStart = t + FADE;
var segEnd = segStart + STEP + HOLD;
var isLast = s === states.length - 2;
tl.set(parts.scene, { opacity: 0 }, 0);
tl.to(parts.scene, { opacity: 1, duration: FADE, ease: "power1.out" }, t);
if (!isLast)
tl.to(parts.scene, { opacity: 0, duration: FADE, ease: "power1.in" }, segEnd - FADE);
tl.add(seg, segStart);
t = segEnd - FADE;
}
}
function buildEffect(tl, surface, spec) {
var start = 0.45;
var seq = T[spec.seq];
if (spec.effect === "morph") morph(tl, surface, seq.states, start);
}
function go() {
var spec = window.__BLOCK;
var surface = document.getElementById("surface");
var root = document.getElementById("root");
window.__timelines = window.__timelines || {};
var tl = gsap.timeline({ paused: true });
// Build inside fonts.ready (glyph metrics must be final), then register.
// Register ONLY after the timeline is fully built: the runtime's
// sub-composition readiness gate treats "key present" as "ready" and
// nests the child once. An empty timeline registered before this build
// would be nested empty and never re-nested → blank render when used as
// a sub-composition. See the contract in engine frameCapture.ts.
document.fonts.ready.then(function () {
tl.from("#editor", { opacity: 0, scale: 0.985, duration: 0.5, ease: "power2.out" }, 0);
buildEffect(tl, surface, spec);
var dur = parseFloat(root.dataset.duration) || tl.duration();
tl.to({}, { duration: dur }, 0); // pad to full composition length
window.__timelines["code-morph"] = tl; // register AFTER setup completes
if (typeof window.__hfForceTimelineRebind === "function") {
window.__hfForceTimelineRebind(); // re-nest now that we are populated
}
});
}
if (document.readyState === "loading") document.addEventListener("DOMContentLoaded", go);
else go();
})();
</script>
</body>
</html>
```
</CatalogSlot>
<CatalogSlot slot="install">
<InstallCommand command="npx hyperframes add code-morph" item="code-morph" />
That writes one file: `compositions/code-morph.html`.
</CatalogSlot>
</CatalogDetail>
<div data-static-slot="docs" className="prose prose-gray dark:prose-invert">
## Add it to your video
It runs for 7 seconds at 1920×1080. Paste this into your composition:
```html index.html
<div
data-composition-id="code-morph"
data-composition-src="compositions/code-morph.html"
data-start="0"
data-duration="7"
data-track-index="1"
data-width="1920"
data-height="1080"
></div>
```
Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.
{/* hf:generated-footer */}
Tagged `code` `code-animation` `morph` `refactor` `developer`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks)
- [Put blocks together into one video](/concepts/compositions)
</div>