2022-02-10 11:07:14 +00:00
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import Head from "next/head";
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import { useEffect, useState } from "react";
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2021-07-09 22:59:21 +00:00
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2022-05-27 15:37:02 +00:00
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import { useEmbedTheme } from "@calcom/embed-core/embed-iframe";
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2022-04-08 05:33:24 +00:00
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2021-10-14 19:22:01 +00:00
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import { Maybe } from "@trpc/server";
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2022-02-16 15:53:26 +00:00
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// This method is stringified and executed only on client. So,
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// - Pass all the params explicitly to this method. Don't use closure
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function applyThemeAndAddListener(theme: string) {
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const mediaQueryList = window.matchMedia("(prefers-color-scheme: dark)");
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const applyTheme = function (theme: string, darkMatch: boolean) {
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if (!theme) {
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if (darkMatch) {
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document.documentElement.classList.add("dark");
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} else {
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document.documentElement.classList.remove("dark");
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}
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} else {
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2022-04-25 04:33:00 +00:00
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document.documentElement.classList.remove("dark");
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document.documentElement.classList.remove("light");
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2022-02-16 15:53:26 +00:00
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document.documentElement.classList.add(theme);
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}
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};
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mediaQueryList.onchange = function (e) {
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applyTheme(theme, e.matches);
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};
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applyTheme(theme, mediaQueryList.matches);
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}
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2021-09-14 08:45:28 +00:00
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// makes sure the ui doesn't flash
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2021-09-27 16:09:19 +00:00
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export default function useTheme(theme?: Maybe<string>) {
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2021-07-09 22:59:21 +00:00
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const [isReady, setIsReady] = useState(false);
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2022-04-08 05:33:24 +00:00
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const embedTheme = useEmbedTheme();
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2022-03-31 08:45:47 +00:00
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// Embed UI configuration takes more precedence over App Configuration
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2022-04-08 05:33:24 +00:00
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theme = embedTheme || theme;
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2022-06-29 18:50:46 +00:00
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const [_theme, setTheme] = useState<Maybe<string>>(theme);
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2022-02-10 11:07:14 +00:00
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useEffect(() => {
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2022-02-16 15:53:26 +00:00
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// TODO: isReady doesn't seem required now. This is also impacting PSI Score for pages which are using isReady.
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2022-02-08 19:19:33 +00:00
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setIsReady(true);
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2022-04-25 04:33:00 +00:00
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setTheme(theme);
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2022-05-05 14:29:49 +00:00
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}, [theme]);
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2022-02-16 15:53:26 +00:00
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2022-02-10 11:07:14 +00:00
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function Theme() {
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2022-02-16 15:53:26 +00:00
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const code = applyThemeAndAddListener.toString();
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2022-04-25 04:33:00 +00:00
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const themeStr = _theme ? `"${_theme}"` : null;
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2022-02-10 11:07:14 +00:00
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return (
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<Head>
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2022-07-13 21:14:16 +00:00
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<script dangerouslySetInnerHTML={{ __html: `(${code})(${themeStr})` }} />
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2022-02-10 11:07:14 +00:00
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</Head>
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);
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}
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2021-07-09 22:59:21 +00:00
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return {
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2021-07-11 19:35:56 +00:00
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isReady,
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2022-02-10 11:07:14 +00:00
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Theme,
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2021-07-11 19:35:56 +00:00
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};
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}
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