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author | 2021-08-14 00:58:00 +0000 | |
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committer | 2021-08-26 12:15:33 -0700 | |
commit | b7ada11ddbabe4dd2f0798e140e5b280de4d6952 (patch) | |
tree | c01ff3eee4f770fc108c19d126dce31d9cbe5e51 /examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx | |
parent | 59cc62f7bd53dbcb6ad8051fa501b7b797614178 (diff) | |
download | astro-b7ada11ddbabe4dd2f0798e140e5b280de4d6952.tar.gz astro-b7ada11ddbabe4dd2f0798e140e5b280de4d6952.tar.zst astro-b7ada11ddbabe4dd2f0798e140e5b280de4d6952.zip |
WIP update examples/docs/
Diffstat (limited to 'examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx')
-rw-r--r-- | examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx b/examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx new file mode 100644 index 000000000..75ea775f4 --- /dev/null +++ b/examples/docs/src/components/RightSidebar/ThemeToggleButton.tsx @@ -0,0 +1,71 @@ +import type { FunctionalComponent } from 'preact'; +import { h, Fragment } from 'preact'; +import { useState, useEffect } from 'preact/hooks'; +import './ThemeToggleButton.css'; + +const themes = ['light', 'dark']; + +const icons = [ + <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" fill="currentColor"> + <path + fillRule="evenodd" + d="M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z" + clipRule="evenodd" + /> + </svg>, + <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" fill="currentColor"> + <path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z" /> + </svg>, +]; + +const ThemeToggle: FunctionalComponent = () => { + const [theme, setTheme] = useState(() => { + if (import.meta.env.SSR) { + return undefined; + } + if (typeof localStorage !== 'undefined' && localStorage.getItem('theme')) { + return localStorage.getItem('theme'); + } + if (window.matchMedia('(prefers-color-scheme: dark)').matches) { + return 'dark'; + } + return 'light'; + }); + + useEffect(() => { + const root = document.documentElement; + if (theme === 'light') { + root.classList.remove('theme-dark'); + } else { + root.classList.add('theme-dark'); + } + }, [theme]); + + return ( + <div class="theme-toggle"> + {themes.map((t, i) => { + const icon = icons[i]; + const checked = t === theme; + return ( + <label className={checked ? ' checked' : ''}> + {icon} + <input + type="radio" + name="theme-toggle" + checked={checked} + value={t} + title={`Use ${t} theme`} + aria-label={`Use ${t} theme`} + onChange={() => { + localStorage.setItem('theme', t); + setTheme(t); + }} + /> + </label> + ); + })} + </div> + ); +}; + +export default ThemeToggle; |