夜间模式按钮

components/DarkModeButton.js

@@ -0,0 +1,21 @@
+import { useGlobal } from '@/lib/global'
+import { saveDarkModeToCookies } from '@/lib/theme'
+
+const DarkModeButton = (props) => {
+  const { isDarkMode, updateDarkMode } = useGlobal()
+  // 用户手动设置主题
+  const handleChangeDarkMode = () => {
+    const newStatus = !isDarkMode
+    saveDarkModeToCookies(newStatus)
+    updateDarkMode(newStatus)
+    const htmlElement = document.getElementsByTagName('html')[0]
+    htmlElement.classList?.remove(newStatus ? 'light' : 'dark')
+    htmlElement.classList?.add(newStatus ? 'dark' : 'light')
+  }
+
+  return <div className={'z-10 duration-200 text-xl cursor-pointer py-2 ' + props.className}>
+    <i id='darkModeButton' className={`hover:scale-125 transform duration-200 fas ${isDarkMode ? 'fa-sun' : 'fa-moon'}`}
+       onClick={handleChangeDarkMode} />
+  </div>
+}
+export default DarkModeButton