blog.z0x.ca/src/components/ui/mode-toggle.tsx
2024-09-10 14:24:09 -07:00

52 lines
1.7 KiB
TypeScript

import * as React from "react"
import { Moon, Sun } from "lucide-react"
import { Button } from "@/components/ui/button"
import {
DropdownMenu,
DropdownMenuContent,
DropdownMenuItem,
DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
export function ModeToggle() {
const [theme, setThemeState] = React.useState<
"theme-light" | "dark" | "system"
>("theme-light")
React.useEffect(() => {
const isDarkMode = document.documentElement.classList.contains("dark")
setThemeState(isDarkMode ? "dark" : "theme-light")
}, [])
React.useEffect(() => {
const isDark =
theme === "dark" ||
(theme === "system" &&
window.matchMedia("(prefers-color-scheme: dark)").matches)
document.documentElement.classList[isDark ? "add" : "remove"]("dark")
}, [theme])
return (
<DropdownMenu>
<DropdownMenuTrigger asChild>
<Button variant="outline" size="icon">
<Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
<Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
<span className="sr-only">Toggle theme</span>
</Button>
</DropdownMenuTrigger>
<DropdownMenuContent align="end">
<DropdownMenuItem onClick={() => setThemeState("theme-light")}>
Light
</DropdownMenuItem>
<DropdownMenuItem onClick={() => setThemeState("dark")}>
Dark
</DropdownMenuItem>
<DropdownMenuItem onClick={() => setThemeState("system")}>
System
</DropdownMenuItem>
</DropdownMenuContent>
</DropdownMenu>
)
}