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fix/start-wait-cap
hyperframes/docs/catalog/components/chat-thread.mdx
T
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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---
title: "Chat Thread"
description: "The measured conversation as one mountable scene at full fidelity: status bar, back badge, avatar and name pill, bubbles with real iMessage tails, a Delivered receipt, large emoji rows, a media placeholder, a link card, and typing dots holding the beat. Every message picks its type by prefix - recv:/sent: text, emoji: a large row, img media, card:Title~domain a link card - and heights are measured at mount so any thread fits"
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>Chat Thread</h1>
<p>The measured conversation as one mountable scene at full fidelity: status bar, back badge, avatar and name pill, bubbles with real iMessage tails, a Delivered receipt, large emoji rows, a media placeholder, a link card, and typing dots holding the beat. Every message picks its type by prefix - recv:/sent: text, emoji: a large row, img media, card:Title&#126;domain a link card - and heights are measured at mount so any thread fits</p>
</div>
<CatalogDetail
previewSrc="/public/catalog/components/chat-thread.json"
compositionId="chat-thread"
compositionSrc="compositions/components/chat-thread.html"
title="Chat Thread"
variables={[{"id":"contact","type":"string","role":"content","label":"Contact","description":"Name in the thread header; the avatar shows its first letter.","default":"Rachel"},{"id":"unread","type":"number","role":"content","label":"Unread badge","description":"Count in the back-button badge. 0 hides it.","default":12,"min":0,"max":99,"step":1},{"id":"messages","type":"string","role":"content","label":"Messages","description":"Pipe-separated thread. Each entry picks its type by prefix: recv: or sent: for a text bubble, emoji: for a large emoji row, img for a media placeholder, card:Title~domain for a link card. Example: recv:hey|sent:look 👀|card:HyperFrames~hyperframes.heygen.com|emoji:🤯🤯🤯","default":"recv:what r u using for the launch video??|sent:wait look 👀|card:HyperFrames — Write HTML, render pixel-perfect video~hyperframes.heygen.com|recv:OMG IT&#39;S HTML|emoji:🤯🤯🤯|sent:renders in 4K. no editor"},{"id":"beat","type":"number","role":"timing","label":"Beat","description":"Seconds between message arrivals.","default":1.7,"min":0.8,"max":3,"step":0.1},{"id":"dots","type":"enum","role":"timing","label":"Typing dots","description":"Show the three-dot indicator before received messages.","default":"on","options":[{"value":"on","label":"On"},{"value":"off","label":"Off"}]},{"id":"receipt","type":"enum","role":"content","label":"Delivered receipt","description":"Show Delivered under the last sent bubble, as iMessage does.","default":"on","options":[{"value":"on","label":"On"},{"value":"off","label":"Off"}]}]}
meta={{"category":"Motion Scenes","badge":"Stable","codeLines":662}}
attribution={{"author":"Miao Yang","path":"registry/components/chat-thread","tags":["motion-primitive","chat","mock-ui","conversation","vertical"]}}
hasCode
rawUrl="https://raw.githubusercontent.com/heygen-com/hyperframes/main/registry/components/chat-thread/chat-thread.html"
>
<CatalogSlot slot="code">
```html chat-thread.html
<!doctype html>
<!--
chat-thread: HyperFrames motion primitive (scene)
The measured conversation from message-thread-reveal, as one mountable
scene at full fidelity: status bar, back badge, avatar and name pill,
bubbles with real iMessage tails, a Delivered receipt, large emoji rows,
a media placeholder, a link card with title and domain, and typing dots
that hold the beat before replies.
Every message picks its TYPE by prefix, the way marker-highlight picks a
style: recv:/sent: text bubbles, emoji: a large emoji row, img a media
placeholder, card:Title~domain a link card. Heights are measured at mount
and the scroll choreography is generated from them, so any thread fits.
Relates to thread-message-stack (#3046): that item is a caller-payload
message stack; this is the conversation as a scene.
#root only, container-type: size, one paused timeline registered under
the literal "chat-thread" key. Deterministic: layout measured at mount.
-->
<html
lang="en"
data-composition-id="chat-thread"
data-composition-duration="12"
data-composition-variables='[{"id": "contact", "type": "string", "role": "content", "label": "Contact", "description": "Name in the thread header; the avatar shows its first letter.", "default": "Rachel"}, {"id": "unread", "type": "number", "role": "content", "label": "Unread badge", "description": "Count in the back-button badge. 0 hides it.", "default": 12, "min": 0, "max": 99, "step": 1}, {"id": "messages", "type": "string", "role": "content", "label": "Messages", "description": "Pipe-separated thread. Each entry picks its type by prefix: recv: or sent: for a text bubble, emoji: for a large emoji row, img for a media placeholder, card:Title~domain for a link card. Example: recv:hey|sent:look 👀|card:HyperFrames~hyperframes.heygen.com|emoji:🤯🤯🤯", "default": "recv:what r u using for the launch video??|sent:wait look 👀|card:HyperFrames — Write HTML, render pixel-perfect video~hyperframes.heygen.com|recv:OMG IT&#39;S HTML|emoji:🤯🤯🤯|sent:renders in 4K. no editor"}, {"id": "beat", "type": "number", "role": "timing", "label": "Beat", "description": "Seconds between message arrivals.", "default": 1.7, "min": 0.8, "max": 3, "step": 0.1}, {"id": "dots", "type": "enum", "role": "timing", "label": "Typing dots", "description": "Show the three-dot indicator before received messages.", "default": "on", "options": [{"value": "on", "label": "On"}, {"value": "off", "label": "Off"}]}, {"id": "receipt", "type": "enum", "role": "content", "label": "Delivered receipt", "description": "Show Delivered under the last sent bubble, as iMessage does.", "default": "on", "options": [{"value": "on", "label": "On"}, {"value": "off", "label": "Off"}]}]'
>
<head>
<meta charset="UTF-8" />
<title>Chat Thread</title>
</head>
<body>
<template>
<div id="root" data-composition-id="chat-thread" data-duration="12" data-fps="30">
<style>
*,
*::before,
*::after {
box-sizing: border-box;
}
#root {
position: absolute;
inset: 0;
overflow: hidden;
container-type: size;
isolation: isolate;
background: #000;
font-family: var(
--font-body,
-apple-system,
BlinkMacSystemFont,
"Segoe UI",
sans-serif
);
pointer-events: none;
}
/* status bar */
.cht-sbtime {
position: absolute;
left: 8cqw;
top: 2.6cqh;
color: #fff;
font-size: 3.2cqmin;
font-weight: 600;
letter-spacing: 0.03em;
}
.cht-sbicons {
position: absolute;
right: 7cqw;
top: 3cqh;
width: 11cqw;
}
/* header */
.cht-back {
position: absolute;
left: 4.4cqw;
top: 7.4cqh;
width: 2.6cqw;
height: 4.4cqw;
}
.cht-badge {
position: absolute;
left: 9.5cqw;
top: 7.6cqh;
height: 4cqmin;
padding: 0 2cqmin;
background: #262628;
border-radius: 2cqmin;
color: #fff;
font-size: 2.6cqmin;
line-height: 4cqmin;
}
.cht-avatar {
position: absolute;
left: 50%;
top: 5.6cqh;
transform: translateX(-50%);
width: 8cqmin;
height: 8cqmin;
border-radius: 50%;
background: #9ce474;
color: #12300c;
font-size: 4cqmin;
font-weight: 600;
display: grid;
place-items: center;
}
.cht-name {
position: absolute;
left: 50%;
top: 10.6cqh;
transform: translateX(-50%);
height: 4.2cqmin;
padding: 0 1.9cqmin;
background: #232325;
border-radius: 2.1cqmin;
color: #fff;
font-size: 2.7cqmin;
line-height: 4.2cqmin;
white-space: nowrap;
}
.cht-name .chev {
color: #8e8e93;
font-size: 2.4cqmin;
margin-left: 0.7cqmin;
}
.cht-cam {
position: absolute;
right: 5cqw;
top: 7.8cqh;
width: 4.8cqw;
}
/* thread viewport */
.cht-view {
position: absolute;
left: 0;
top: 15.5cqh;
width: 100cqw;
bottom: 11cqh;
overflow: hidden;
}
.cht-item {
position: absolute;
left: 4cqw;
width: 92cqw;
visibility: hidden;
}
.cht-item.sent {
text-align: right;
}
.cht-pop {
display: inline-block;
transform-origin: left bottom;
text-align: left;
}
.cht-item.sent .cht-pop {
transform-origin: right bottom;
}
.cht-bubble {
display: inline-block;
position: relative;
max-width: 72cqw;
padding: 1.2cqh 3.4cqw;
border-radius: 4.6cqmin;
font-size: 3.3cqmin;
line-height: 1.35;
color: #fff;
}
.cht-bubble.recv {
background: #242428;
}
.cht-bubble.sent {
background: #0a80f8;
}
/* iMessage tails: cover-circle trick against the #000 screen */
.cht-tail-recv::before {
content: "";
position: absolute;
left: -1.1cqmin;
bottom: 0;
width: 2.9cqmin;
height: 2.9cqmin;
background: #242428;
border-bottom-right-radius: 2.2cqmin 2cqmin;
}
.cht-tail-recv::after {
content: "";
position: absolute;
left: -2.9cqmin;
bottom: -0.2cqmin;
width: 2.2cqmin;
height: 3.3cqmin;
background: #000;
border-bottom-right-radius: 1.8cqmin;
}
.cht-tail-sent::before {
content: "";
position: absolute;
right: -1.1cqmin;
bottom: 0;
width: 2.9cqmin;
height: 2.9cqmin;
background: #0a80f8;
border-bottom-left-radius: 2.2cqmin 2cqmin;
}
.cht-tail-sent::after {
content: "";
position: absolute;
right: -2.9cqmin;
bottom: -0.2cqmin;
width: 2.2cqmin;
height: 3.3cqmin;
background: #000;
border-bottom-left-radius: 1.8cqmin;
}
.cht-delivered {
color: #8e8e93;
font-size: 2.7cqmin;
margin-top: 0.8cqh;
padding-right: 0.7cqw;
text-align: right;
}
.cht-emoji {
font-size: 10cqmin;
line-height: 1.3;
letter-spacing: 0.02em;
margin-left: 1cqw;
white-space: nowrap;
color: #fff;
}
/* media placeholder */
.cht-media {
display: inline-block;
width: 52cqw;
aspect-ratio: 4 / 3;
border-radius: 4cqmin;
position: relative;
background: linear-gradient(165deg, #0f3a2c 0%, #0a9c6b 78%, #3ce6ac 100%);
}
.cht-play {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 10cqmin;
height: 10cqmin;
border-radius: 50%;
background: rgba(253, 253, 253, 0.94);
}
.cht-play::before {
content: "";
position: absolute;
left: 38%;
top: 30%;
border-left: 3.4cqmin solid #0d0d0d;
border-top: 2cqmin solid transparent;
border-bottom: 2cqmin solid transparent;
}
/* link card */
.cht-card {
display: inline-block;
width: 55cqw;
border-radius: 4cqmin;
overflow: hidden;
text-align: left;
}
.cht-cardimg {
display: block;
width: 100%;
aspect-ratio: 1.02;
position: relative;
background: linear-gradient(165deg, #0f3a2c 0%, #0a9c6b 78%, #3ce6ac 100%);
}
.cht-cardmeta {
background: #28282c;
display: flex;
align-items: center;
padding: 1.4cqh 2cqw 1.4cqh 3cqw;
}
.cht-cardtxt {
flex: 1;
min-width: 0;
}
.cht-cardtitle {
color: #fff;
font-size: 2.6cqmin;
font-weight: 600;
line-height: 1.3;
}
.cht-carddomain {
color: #8e8e93;
font-size: 2.3cqmin;
margin-top: 0.4cqh;
}
.cht-cardchev {
color: #8e8e93;
font-size: 4.6cqmin;
padding-left: 1cqw;
}
/* typing dots with tail circles */
.cht-dotswrap {
position: relative;
display: inline-block;
}
.cht-dots {
display: inline-flex;
align-items: center;
justify-content: center;
gap: 1cqmin;
width: 12cqmin;
height: 6.5cqmin;
background: #242428;
border-radius: 3.4cqmin;
}
.cht-dots span {
width: 1.7cqmin;
height: 1.7cqmin;
border-radius: 50%;
background: #8e8e93;
}
.cht-dtail1 {
position: absolute;
left: -0.2cqmin;
bottom: -0.4cqmin;
width: 1.8cqmin;
height: 1.8cqmin;
border-radius: 50%;
background: #242428;
}
.cht-dtail2 {
position: absolute;
left: -1.4cqmin;
bottom: -1.4cqmin;
width: 0.9cqmin;
height: 0.9cqmin;
border-radius: 50%;
background: #242428;
}
/* composer */
.cht-plus {
position: absolute;
left: 3cqw;
bottom: 2.6cqh;
width: 8cqmin;
height: 8cqmin;
border-radius: 50%;
background: #262628;
color: #8e8e93;
font-size: 4.6cqmin;
font-weight: 300;
display: grid;
place-items: center;
}
.cht-composer {
position: absolute;
left: 13cqw;
bottom: 2.8cqh;
width: 83cqw;
height: 7.6cqmin;
border: 0.35cqmin solid #202022;
border-radius: 100cqmin;
}
.cht-ph {
position: absolute;
left: 17cqw;
bottom: 4.4cqh;
color: #8e8e93;
font-size: 3.1cqmin;
}
.cht-mic {
position: absolute;
right: 6cqw;
bottom: 4.2cqh;
width: 2.4cqw;
}
</style>
<div class="cht-sbtime">9:41</div>
<svg class="cht-sbicons" viewBox="0 0 86 30">
<rect x="0" y="16" width="5" height="9" rx="1.5" fill="#fff" />
<rect x="8" y="12" width="5" height="13" rx="1.5" fill="#fff" />
<rect x="16" y="8" width="5" height="17" rx="1.5" fill="#fff" />
<rect x="24" y="4" width="5" height="21" rx="1.5" fill="#fff" />
<g transform="translate(44,2)">
<path
d="M18 21.5 L21.5 25 L25 21.5 A5 5 0 0 0 18 21.5"
fill="#fff"
transform="translate(-10,-2)"
/>
<path
d="M4 13 A14 14 0 0 1 23 13"
stroke="#fff"
stroke-width="4"
fill="none"
transform="translate(-2,-2)"
/>
<path
d="M8.5 17.5 A8 8 0 0 1 18.5 17.5"
stroke="#fff"
stroke-width="4"
fill="none"
transform="translate(-2,-2)"
/>
</g>
</svg>
<svg class="cht-back" viewBox="0 0 26 48">
<path
d="M23 3 L4 24 L23 45"
stroke="#e4e4e4"
stroke-width="6"
fill="none"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
<div class="cht-badge" id="cht-badge">12</div>
<div class="cht-avatar" id="cht-avatar">R</div>
<div class="cht-name" id="cht-name">Rachel<span class="chev">&#8250;</span></div>
<svg class="cht-cam" viewBox="0 0 52 34">
<rect x="0" y="1" width="36" height="32" rx="9" fill="#fff" />
<path d="M38 12 L50 4 V30 L38 22 Z" fill="#fff" />
</svg>
<div class="cht-view" id="cht-view"></div>
<div class="cht-plus">+</div>
<div class="cht-composer"></div>
<div class="cht-ph">Message</div>
<svg class="cht-mic" viewBox="0 0 26 42">
<rect x="8" y="0" width="10" height="22" rx="5" fill="#8e8e93" />
<path
d="M2 16 A11 11 0 0 0 24 16"
stroke="#8e8e93"
stroke-width="3.5"
fill="none"
transform="translate(0,2)"
/>
<line x1="13" y1="30" x2="13" y2="38" stroke="#8e8e93" stroke-width="3.5" />
<line x1="6" y1="39" x2="20" y2="39" stroke="#8e8e93" stroke-width="3.5" />
</svg>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<script>
(function () {
"use strict";
var compositionId = "chat-thread";
var vars =
window.__hyperframes && window.__hyperframes.getVariables
? window.__hyperframes.getVariables()
: {};
function text(v, fb, mx) {
if (typeof v !== "string") return fb;
var t = v.trim();
if (!t) return fb;
return t.length > mx ? t.slice(0, mx) : t;
}
function clampNumber(v, min, max, fb) {
var n = typeof v === "number" ? v : parseFloat(v);
if (!isFinite(n)) return fb;
return Math.min(max, Math.max(min, n));
}
var contact = text(vars.contact, "Rachel", 16);
document.getElementById("cht-avatar").textContent = contact.charAt(0).toUpperCase();
var namePill = document.getElementById("cht-name");
namePill.innerHTML = "";
namePill.appendChild(document.createTextNode(contact));
var chev = document.createElement("span");
chev.className = "chev";
chev.textContent = "\u203a";
namePill.appendChild(chev);
var unread = Math.round(clampNumber(vars.unread, 0, 99, 12));
var badge = document.getElementById("cht-badge");
if (unread === 0) badge.style.display = "none";
else badge.textContent = String(unread);
var beat = clampNumber(vars.beat, 0.8, 3, 1.7);
var dotsOn = vars.dots !== "off";
var receiptOn = vars.receipt !== "off";
var DEFAULT_THREAD =
"recv:what r u using for the launch video??|sent:wait look \ud83d\udc40|card:HyperFrames \u2014 Write HTML, render pixel-perfect video~hyperframes.heygen.com|recv:OMG IT'S HTML|emoji:\ud83e\udd2f\ud83e\udd2f\ud83e\udd2f|sent:renders in 4K. no editor";
var raw = text(vars.messages, DEFAULT_THREAD, 800);
var entries = raw
.split("|")
.map(function (t) {
return t.trim();
})
.filter(Boolean)
.slice(0, 12);
if (entries.length === 0) entries = ["recv:hey"];
var view = document.getElementById("cht-view");
var A = [
"data-layout-allow-overflow",
"data-layout-allow-overlap",
"data-layout-allow-occlusion",
];
function mark(el) {
A.forEach(function (a) {
el.setAttribute(a, "");
});
return el;
}
/* each entry picks its type by prefix, like a style switch */
var lastSentIndex = -1;
var items = entries.map(function (entry, idx) {
var kind = "recv",
body = entry;
if (entry.indexOf("recv:") === 0) {
kind = "recv";
body = entry.slice(5);
} else if (entry.indexOf("sent:") === 0) {
kind = "sent";
body = entry.slice(5);
lastSentIndex = idx;
} else if (entry.indexOf("emoji:") === 0) {
kind = "emoji";
body = entry.slice(6);
} else if (entry.indexOf("card:") === 0) {
kind = "card";
body = entry.slice(5);
lastSentIndex = idx;
} else if (entry === "img") {
kind = "img";
body = "";
}
var side = kind === "sent" || kind === "card" || kind === "img" ? "sent" : "recv";
var item = mark(document.createElement("div"));
item.className = "cht-item " + side;
var pop = document.createElement("div");
pop.className = "cht-pop";
if (kind === "img") {
pop.innerHTML = '<span class="cht-media"><span class="cht-play"></span></span>';
} else if (kind === "emoji") {
var row = document.createElement("div");
row.className = "cht-emoji";
row.textContent = body.trim();
pop.appendChild(row);
} else if (kind === "card") {
var parts = body.split("~");
var card = document.createElement("span");
card.className = "cht-card";
card.innerHTML = '<span class="cht-cardimg"><span class="cht-play"></span></span>';
var meta = document.createElement("span");
meta.className = "cht-cardmeta";
meta.style.display = "flex";
var txt = document.createElement("span");
txt.className = "cht-cardtxt";
var title = document.createElement("span");
title.className = "cht-cardtitle";
title.style.display = "block";
title.textContent = (parts[0] || "Shared link").trim();
txt.appendChild(title);
var domain = document.createElement("span");
domain.className = "cht-carddomain";
domain.style.display = "block";
domain.textContent = (parts[1] || "").trim();
txt.appendChild(domain);
meta.appendChild(txt);
var chv = document.createElement("span");
chv.className = "cht-cardchev";
chv.textContent = "\u203a";
meta.appendChild(chv);
card.appendChild(meta);
pop.appendChild(card);
} else {
var bubble = document.createElement("div");
bubble.className = "cht-bubble " + side + " cht-tail-" + side;
bubble.textContent = body.trim();
pop.appendChild(bubble);
}
item.appendChild(pop);
view.appendChild(item);
return { el: item, pop: pop, kind: kind, side: side };
});
/* Delivered rides the last sent bubble, as iMessage does */
if (receiptOn && lastSentIndex >= 0) {
var receipt = document.createElement("div");
receipt.className = "cht-delivered";
receipt.textContent = "Delivered";
items[lastSentIndex].pop.appendChild(receipt);
}
var dotsItem = null;
if (dotsOn) {
dotsItem = mark(document.createElement("div"));
dotsItem.className = "cht-item recv";
dotsItem.innerHTML =
'<div class="cht-pop"><span class="cht-dotswrap"><span class="cht-dots"><span></span><span></span><span></span></span><span class="cht-dtail1"></span><span class="cht-dtail2"></span></span></div>';
view.appendChild(dotsItem);
}
var tl = gsap.timeline({ paused: true });
function build() {
tl.clear();
var viewH = view.offsetHeight || 1;
var gap = viewH * 0.018;
var heights = items.map(function (item) {
return item.el.offsetHeight;
});
var dotsH = dotsItem ? dotsItem.offsetHeight : 0;
var starts = [];
var t = 0.4;
items.forEach(function (item, i) {
if (i > 0) t += beat;
starts.push(t);
});
var duration = 12;
var last = starts[starts.length - 1];
if (last > duration - 1.2) {
var k = (duration - 1.6) / last;
starts = starts.map(function (s) {
return 0.4 + (s - 0.4) * k;
});
}
items.forEach(function (item) {
gsap.set(item.el, { autoAlpha: 0, y: 0 });
});
if (dotsItem) gsap.set(dotsItem, { autoAlpha: 0 });
items.forEach(function (item, k2) {
var at = starts[k2];
var bottom = viewH;
var yK = [];
for (var j = k2; j >= 0; j -= 1) {
bottom -= heights[j];
yK[j] = bottom;
bottom -= gap;
}
for (var i = 0; i <= k2; i += 1) {
if (i === k2) {
tl.set(item.el, { y: yK[i] }, at);
tl.set(item.el, { autoAlpha: 1 }, at);
tl.fromTo(
item.pop,
{ scale: 0.75, autoAlpha: 0.6 },
{ scale: 1, autoAlpha: 1, duration: 0.12, ease: "power2.out" },
at,
);
} else {
tl.to(items[i].el, { y: yK[i], duration: 1.0, ease: "expo.out" }, at);
}
}
if (dotsItem && item.side === "recv" && item.kind !== "emoji" && k2 > 0) {
var dAt = Math.max(starts[k2 - 1] + 0.35, at - beat * 0.55);
tl.set(dotsItem, { y: viewH - dotsH }, dAt);
tl.set(dotsItem, { autoAlpha: 1 }, dAt);
tl.set(dotsItem, { autoAlpha: 0 }, at);
}
});
tl.set({}, {}, duration);
tl.seek(0);
}
build();
if (document.fonts && document.fonts.ready) {
document.fonts.ready.then(function () {
build();
tl.pause(0);
});
}
window.__timelines = window.__timelines || {};
window.__timelines[compositionId] = tl;
})();
</script>
</div>
</template>
</body>
</html>
```
</CatalogSlot>
<CatalogSlot slot="install">
<InstallCommand command="npx hyperframes add chat-thread" item="chat-thread" />
That writes one file: `compositions/components/chat-thread.html`.
</CatalogSlot>
</CatalogDetail>
<div data-static-slot="docs" className="prose prose-gray dark:prose-invert">
## Paste it into your composition
Open `compositions/components/chat-thread.html` and copy what is inside into your own composition.
A component has no size or duration of its own. It takes both from the composition
you paste it into.
## Variables
Every one of these has a default, so the piece works untouched. Set the ones you
want to change on the element:
| Variable | Default | Accepts | What it does |
| --- | --- | --- | --- |
| `contact` | `Rachel` | string | Name in the thread header; the avatar shows its first letter. |
| `unread` | `12` | 0 to 99, step 1 | Count in the back-button badge. 0 hides it. |
| `messages` | `recv:what r u using for the launch video??|sent:wait look 👀|card:HyperFrames — Write HTML, render pixel-perfect video~hyperframes.heygen.com|recv:OMG IT&#39;S HTML|emoji:🤯🤯🤯|sent:renders in 4K. no editor` | string | Pipe-separated thread. Each entry picks its type by prefix: recv: or sent: for a text bubble, emoji: for a large emoji row, img for a media placeholder, card:Title~domain for a link card. Example: recv:hey|sent:look 👀|card:HyperFrames~hyperframes.heygen.com|emoji:🤯🤯🤯 |
| `beat` | `1.7` | 0.8 to 3, step 0.1 | Seconds between message arrivals. |
| `dots` | `on` | `on`, `off` | Show the three-dot indicator before received messages. |
| `receipt` | `on` | `on`, `off` | Show Delivered under the last sent bubble, as iMessage does. |
Set them with `data-variable-values` on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:
```html wrap
<div
data-composition-id="chat-thread"
data-composition-src="compositions/components/chat-thread.html"
data-variable-values='{"contact":"Rachel","unread":12,"messages":"recv:what r u using for the launch video??|sent:wait look 👀|card:HyperFrames — Write HTML, render pixel-perfect video~hyperframes.heygen.com|recv:OMG IT&#39;S HTML|emoji:🤯🤯🤯|sent:renders in 4K. no editor","beat":1.7,"dots":"on","receipt":"on"}'
></div>
```
{/* hf:generated-footer */}
Tagged `motion-primitive` `chat` `mock-ui` `conversation` `vertical`.
Created by Miao Yang.
## 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>
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