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refactor(site): modularize homepage demo runtime #478

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363 changes: 13 additions & 350 deletions apps/site/src/components/ComponentDemo.astro
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Original file line number Diff line number Diff line change
@@ -1,15 +1,22 @@
---
import fs from 'node:fs';
import path from 'node:path';
import {
createHomepageDemoHostCss,
createHomepageDemoInstanceSelector,
scopeHomepageDemoCss,
} from './homepage-demo/host-css';
import type { HomepageDemoScenarioId } from './homepage-demo/scenario-types';

interface Props {
className: string;
src: string;
title: string;
scenarioId?: HomepageDemoScenarioId;
loading?: 'lazy' | 'eager';
}

const { className, src, title, loading = 'eager' } = Astro.props;
const { className, src, title, scenarioId = '', loading = 'eager' } = Astro.props;

const toPublicPath = (value: string, basePathname: string) => {
if (!value || value.startsWith('data:') || value.startsWith('#')) return value;
Expand All @@ -34,127 +41,6 @@ const extractBody = (html: string) => {
};
};

const normalizeSelector = (selector: string, instanceSelector: string) => {
const trimmed = selector.trim();
if (!trimmed) return '';
if (trimmed.startsWith('@')) return trimmed;
if (trimmed.startsWith('from') || trimmed.startsWith('to') || /^\d+%$/.test(trimmed))
return trimmed;

const scoped = trimmed
.replace(/:root/g, instanceSelector)
.replace(/\bhtml\s*,\s*body\b/g, instanceSelector)
.replace(/\bbody((?:\.[\w-]+)+)/g, (_match, classes) => `${instanceSelector}${classes}`)
.replace(/\bbody\b/g, instanceSelector)
.replace(/\bhtml\b/g, instanceSelector);

if (scoped.startsWith(instanceSelector)) {
return scoped;
}

return `${instanceSelector} ${scoped}`;
};

const scopeSelectorList = (selectorText: string, instanceSelector: string) =>
selectorText
.split(',')
.map((selector) => normalizeSelector(selector, instanceSelector))
.filter(Boolean)
.join(', ');

const scopeCss = (css: string, instanceSelector: string) => {
let index = 0;

const consumeBlock = (): string => {
let output = '';
let selectorBuffer = '';

while (index < css.length) {
const char = css[index];

if (char === '"' || char === "'") {
const quote = char;
selectorBuffer += char;
index += 1;
while (index < css.length) {
const innerChar = css[index];
selectorBuffer += innerChar;
index += 1;
if (innerChar === '\\') {
if (index < css.length) {
selectorBuffer += css[index];
index += 1;
}
continue;
}
if (innerChar === quote) break;
}
continue;
}

if (char === '/' && css[index + 1] === '*') {
const end = css.indexOf('*/', index + 2);
const comment = end === -1 ? css.slice(index) : css.slice(index, end + 2);
selectorBuffer += comment;
index = end === -1 ? css.length : end + 2;
continue;
}

if (char === '{') {
const selector = selectorBuffer.trim();
selectorBuffer = '';
index += 1;

if (
selector.startsWith('@keyframes') ||
selector.startsWith('@-webkit-keyframes')
) {
const keyframeBodyStart = index;
let depth = 1;
while (index < css.length && depth > 0) {
if (css[index] === '{') depth += 1;
if (css[index] === '}') depth -= 1;
index += 1;
}
output += `${selector}{${css.slice(keyframeBodyStart, index - 1)}}`;
continue;
}

if (selector.startsWith('@')) {
const inner = consumeBlock();
output += `${selector}{${inner}}`;
continue;
}

const bodyStart = index;
let depth = 1;
while (index < css.length && depth > 0) {
if (css[index] === '{') depth += 1;
if (css[index] === '}') depth -= 1;
index += 1;
}
const body = css.slice(bodyStart, index - 1);
output += `${scopeSelectorList(selector, instanceSelector)}{${body}}`;
continue;
}

if (char === '}') {
index += 1;
output += selectorBuffer;
return output;
}

selectorBuffer += char;
index += 1;
}

output += selectorBuffer;
return output;
};

return consumeBlock();
};

const makeId = (value: string) => {
let hash = 0;
for (let index = 0; index < value.length; index += 1) {
Expand Down Expand Up @@ -189,234 +75,10 @@ const resolvedBodyHtmlWithoutScripts = resolvedBodyHtml.replace(
''
);
const instanceId = makeId(`${className}:${src}`);
const instanceSelector = `touchai-component-demo[data-demo-id="${instanceId}"]`;
const hostCss = `
${instanceSelector} {
display: block;
width: 100%;
height: 100%;
overflow: hidden;
border-radius: inherit;
isolation: isolate;
background: var(--page-bg, transparent);
color-scheme: light;
}

${instanceSelector}.component-frame {
width: min(60vw, 680px, 100%) !important;
max-width: min(680px, 100%);
justify-self: center;
overflow: visible !important;
}

${instanceSelector}.component-frame .stage {
width: 100% !important;
max-width: 100% !important;
}

${instanceSelector}.feature-component-frame,
${instanceSelector}.feature-work-frame,
${instanceSelector}.feature-reminder-frame {
display: flex;
align-items: stretch;
justify-content: center;
width: 760px !important;
height: 657px !important;
min-height: 657px !important;
max-height: 657px !important;
overflow: visible !important;
background: transparent !important;
}

${instanceSelector}.feature-component-frame .stage,
${instanceSelector}.feature-work-frame .stage,
${instanceSelector}.feature-reminder-frame .stage {
width: 100% !important;
min-height: 100% !important;
height: 100% !important;
padding: 0 !important;
justify-content: flex-start !important;
align-items: center !important;
}

${instanceSelector}.component-frame .chat-panel,
${instanceSelector}.feature-component-frame .chat-panel,
${instanceSelector}.feature-work-frame .chat-panel,
${instanceSelector}.feature-reminder-frame .chat-panel {
margin: 0 auto !important;
box-shadow:
0 34px 90px rgba(107, 114, 128, 0.22),
0 12px 34px rgba(107, 114, 128, 0.12),
0 0 48px rgba(107, 114, 128, 0.14) !important;
}

${instanceSelector}.is-scroll-driven .chat-panel {
will-change: auto !important;
}

${instanceSelector}.component-frame .chat-panel {
width: 100% !important;
max-width: 100% !important;
}

${instanceSelector}.component-frame.is-idle .chat-panel {
border-radius: 8px !important;
overflow: hidden !important;
background: var(--panel, #fff) !important;
}

${instanceSelector}.component-frame .conversation-content {
flex: 1 1 auto !important;
min-height: 0 !important;
overflow-y: auto !important;
padding-bottom: 18px !important;
overscroll-behavior: contain !important;
scrollbar-width: none !important;
-webkit-overflow-scrolling: touch !important;
}

${instanceSelector}.component-frame .conversation-content,
${instanceSelector}.feature-component-frame .conversation-content,
${instanceSelector}.feature-work-frame .conversation-content,
${instanceSelector}.feature-reminder-frame .conversation-content {
min-height: 0 !important;
overflow-y: auto !important;
overscroll-behavior: contain !important;
scrollbar-width: none !important;
-webkit-overflow-scrolling: touch !important;
}

${instanceSelector}.component-frame .conversation-content::-webkit-scrollbar,
${instanceSelector}.feature-component-frame .conversation-content::-webkit-scrollbar,
${instanceSelector}.feature-work-frame .conversation-content::-webkit-scrollbar,
${instanceSelector}.feature-reminder-frame .conversation-content::-webkit-scrollbar {
display: none;
}

${instanceSelector}.component-frame.is-answering .chat-panel,
${instanceSelector}.component-frame.is-complete .chat-panel,
${instanceSelector}.feature-component-frame.is-answering .chat-panel,
${instanceSelector}.feature-component-frame.is-complete .chat-panel,
${instanceSelector}.feature-work-frame.is-answering .chat-panel,
${instanceSelector}.feature-work-frame.is-complete .chat-panel,
${instanceSelector}.feature-reminder-frame.is-answering .chat-panel,
${instanceSelector}.feature-reminder-frame.is-complete .chat-panel {
display: flex !important;
flex-direction: column !important;
max-width: 100% !important;
}

${instanceSelector}.feature-component-frame.is-answering .stage,
${instanceSelector}.feature-component-frame.is-complete .stage,
${instanceSelector}.feature-work-frame.is-answering .stage,
${instanceSelector}.feature-work-frame.is-complete .stage,
${instanceSelector}.feature-reminder-frame.is-answering .stage,
${instanceSelector}.feature-reminder-frame.is-complete .stage {
justify-content: flex-start !important;
}

${instanceSelector}.feature-component-frame.is-complete .chat-panel,
${instanceSelector}.feature-work-frame.is-complete .chat-panel,
${instanceSelector}.feature-reminder-frame.is-complete .chat-panel,
${instanceSelector}.feature-component-frame.is-scroll-driven.is-complete .chat-panel,
${instanceSelector}.feature-work-frame.is-scroll-driven.is-complete .chat-panel,
${instanceSelector}.feature-reminder-frame.is-scroll-driven.is-complete .chat-panel {
min-height: 0 !important;
height: auto !important;
}

${instanceSelector}.component-frame.is-answering .conversation-content,
${instanceSelector}.component-frame.is-complete .conversation-content,
${instanceSelector}.feature-component-frame.is-answering .conversation-content,
${instanceSelector}.feature-component-frame.is-complete .conversation-content,
${instanceSelector}.feature-work-frame.is-answering .conversation-content,
${instanceSelector}.feature-work-frame.is-complete .conversation-content,
${instanceSelector}.feature-reminder-frame.is-answering .conversation-content,
${instanceSelector}.feature-reminder-frame.is-complete .conversation-content {
flex: 1 1 auto !important;
min-height: 0 !important;
overflow-y: auto !important;
padding-bottom: 20px !important;
overscroll-behavior: contain !important;
-webkit-overflow-scrolling: touch !important;
}

${instanceSelector}.component-frame.is-answering .composer,
${instanceSelector}.component-frame.is-complete .composer,
${instanceSelector}.feature-component-frame.is-answering .composer,
${instanceSelector}.feature-component-frame.is-complete .composer,
${instanceSelector}.feature-work-frame.is-answering .composer,
${instanceSelector}.feature-work-frame.is-complete .composer,
${instanceSelector}.feature-reminder-frame.is-answering .composer,
${instanceSelector}.feature-reminder-frame.is-complete .composer {
margin-top: auto !important;
}

@media (max-width: 900px) {
${instanceSelector}.component-frame {
width: min(60vw, 520px, 100%) !important;
height: auto !important;
min-height: 0 !important;
aspect-ratio: 760 / 657 !important;
max-height: min(62vh, 657px) !important;
}

${instanceSelector}.component-frame .stage {
height: 100% !important;
min-height: 0 !important;
}
}

@media (max-height: 780px) {
${instanceSelector}.component-frame {
width: min(52vw, 560px, 100%) !important;
max-width: min(560px, 100%) !important;
height: auto !important;
min-height: 0 !important;
aspect-ratio: 760 / 657 !important;
max-height: min(60vh, 520px) !important;
overflow: hidden !important;
}

${instanceSelector}.component-frame .stage {
min-height: 0 !important;
height: 100% !important;
padding: 0 !important;
align-items: center !important;
justify-content: center !important;
}

${instanceSelector}.component-frame.is-answering .chat-panel,
${instanceSelector}.component-frame.is-complete .chat-panel,
${instanceSelector}.component-frame.is-scroll-driven.is-answering .chat-panel,
${instanceSelector}.component-frame.is-scroll-driven.is-complete .chat-panel {
display: flex !important;
flex-direction: column !important;
max-width: 100% !important;
}
}

@media (max-width: 560px) {
${instanceSelector}.component-frame {
width: min(calc(100vw - 56px), 360px, 100%) !important;
max-width: min(calc(100vw - 56px), 360px, 100%) !important;
height: auto !important;
min-height: 0 !important;
aspect-ratio: 760 / 657 !important;
max-height: min(58vh, 420px) !important;
overflow: visible !important;
}

${instanceSelector}.component-frame .stage {
min-height: 0 !important;
height: 100% !important;
padding: 0 !important;
align-items: center !important;
justify-content: center !important;
}
}
`;
const initialCss = `${scopeCss(inlineStyles, instanceSelector)}\n${hostCss}`;
const instanceSelector = createHomepageDemoInstanceSelector(instanceId);
const initialCss = `${scopeHomepageDemoCss(inlineStyles, instanceSelector)}\n${createHomepageDemoHostCss(
instanceSelector
)}`;
const initialClassName = [className, body.className].filter(Boolean).join(' ');
---

Expand All @@ -426,6 +88,7 @@ const initialClassName = [className, body.className].filter(Boolean).join(' ');
class={initialClassName}
data-component-demo
data-demo-id={instanceId}
data-scenario-id={scenarioId || undefined}
data-src={src}
data-title={title}
data-loading={loading}
Expand Down
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