70 lines
2.9 KiB
TypeScript
70 lines
2.9 KiB
TypeScript
import { render } from 'preact';
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import { readBootstrap } from './bootstrap';
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import { App } from './App';
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import { createT } from './i18n';
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import { WidgetApi, buildCapabilities } from './widget-api';
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import './styles.css';
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// Input-mode detector — see apps/widget-telegram/src/main.tsx for the
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// full rationale. Default to 'mouse'; the capture-phase pointerdown
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// listener flips to 'touch' on the first non-mouse pointerType.
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// matchMedia guessing was dropped — every variant
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// (`any-pointer: coarse|fine`, `hover: hover`, `pointer: fine|coarse`)
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// is mis-reported on at least one shipping device.
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const setInputMode = (mode: 'touch' | 'mouse'): void => {
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document.documentElement.dataset.input = mode;
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};
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setInputMode('mouse');
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window.addEventListener(
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'pointerdown',
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(event) => {
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setInputMode(event.pointerType === 'mouse' ? 'mouse' : 'touch');
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},
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{ passive: true, capture: true }
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);
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const root = document.getElementById('app');
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if (!root) {
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throw new Error('#app root element missing — index.html out of sync');
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}
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const result = readBootstrap(window.location.search);
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if (!result.ok) {
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// Either someone opened the widget URL directly (no host params), or a
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// host bug failed to provide them. Either way render a self-contained
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// diagnostic instead of going silent. Bootstrap failed before we could
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// read clientLanguage from the URL, so let createT fall back to
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// navigator.language.
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const t = createT();
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render(
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<div class="app">
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<div class="error-banner">
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<strong>{t('bootstrap.failed')}</strong>
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{t('bootstrap.missing-params', { names: result.missing.join(', ') })}{' '}
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{t('bootstrap.embedded-only', { route: '/bots/whatsapp' })}
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</div>
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</div>,
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root
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);
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} else {
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// Apply initial theme synchronously so the first paint isn't flashed
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// through the wrong palette.
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document.documentElement.dataset.theme = result.bootstrap.theme;
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// Instantiate the WidgetApi BEFORE React render. The constructor attaches
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// the `window.addEventListener('message', ...)` listener synchronously,
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// so by the time the host's ClientWidgetApi fires its capabilities
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// request on iframe `load` we're already listening.
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//
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// The pre-fix flow built the WidgetApi inside App.tsx's useEffect, which
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// runs AFTER React's first commit. On a fresh mount the bundle parse +
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// initial render took long enough for the host's request to arrive
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// after the listener was attached, so it worked by accident. On the
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// *second* mount (after «Show chat» → «Show widget») the bundle is
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// browser-cached and parses near-instantly; the host's request raced
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// ahead of useEffect, the listener missed it, and capability handshake
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// hung forever — only the «Соединение с Vojo…» diag line ever showed.
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const api = new WidgetApi(result.bootstrap, buildCapabilities(result.bootstrap.roomId));
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render(<App bootstrap={result.bootstrap} api={api} />, root);
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}
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