Initial commit

quartz/components/scripts/darkmode.inline.ts

@@ -0,0 +1,40 @@
+const userPref = window.matchMedia("(prefers-color-scheme: light)").matches ? "light" : "dark"
+const currentTheme = localStorage.getItem("theme") ?? userPref
+document.documentElement.setAttribute("saved-theme", currentTheme)
+
+const emitThemeChangeEvent = (theme: "light" | "dark") => {
+  const event: CustomEventMap["themechange"] = new CustomEvent("themechange", {
+    detail: { theme },
+  })
+  document.dispatchEvent(event)
+}
+
+document.addEventListener("nav", () => {
+  const switchTheme = (e: Event) => {
+    const newTheme = (e.target as HTMLInputElement)?.checked ? "dark" : "light"
+    document.documentElement.setAttribute("saved-theme", newTheme)
+    localStorage.setItem("theme", newTheme)
+    emitThemeChangeEvent(newTheme)
+  }
+
+  const themeChange = (e: MediaQueryListEvent) => {
+    const newTheme = e.matches ? "dark" : "light"
+    document.documentElement.setAttribute("saved-theme", newTheme)
+    localStorage.setItem("theme", newTheme)
+    toggleSwitch.checked = e.matches
+    emitThemeChangeEvent(newTheme)
+  }
+
+  // Darkmode toggle
+  const toggleSwitch = document.querySelector("#darkmode-toggle") as HTMLInputElement
+  toggleSwitch.addEventListener("change", switchTheme)
+  window.addCleanup(() => toggleSwitch.removeEventListener("change", switchTheme))
+  if (currentTheme === "dark") {
+    toggleSwitch.checked = true
+  }
+
+  // Listen for changes in prefers-color-scheme
+  const colorSchemeMediaQuery = window.matchMedia("(prefers-color-scheme: dark)")
+  colorSchemeMediaQuery.addEventListener("change", themeChange)
+  window.addCleanup(() => colorSchemeMediaQuery.removeEventListener("change", themeChange))
+})