adding a dark mode toggle for Vue

src/resources/js/Components/DarkModeToggle.vue

@@ -0,0 +1,81 @@
+<script setup>
+import { reactive, computed, onBeforeMount, provide } from 'vue'
+
+const emit = defineEmits(['themeUpdate'])
+
+let settings = reactive({
+  theme: 'light',
+})
+
+const htmlNode = document.documentElement
+let mediaQuery = window.matchMedia('(prefers-color-scheme: dark)')
+
+// computed properties
+const isDarkMode = computed(() => {
+  return settings.theme === 'dark'
+})
+
+const isLightMode = computed(() => {
+  return settings.theme === 'light'
+})
+
+// lifecycle hooks
+onBeforeMount(() => {
+  window.addEventListener('storage', update)
+
+  if (mediaQuery?.addEventListener) {
+    mediaQuery.addEventListener('change', update)
+  }
+
+  update()
+})
+
+onMounted(() => {
+  provide('darkMode', isDarkMode)
+})
+
+// methods
+const update = () => {
+  if (localStorage.theme === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+    setModeDark()
+  } else {
+    setModeLight()
+  }
+
+  emit('themeUpdate')
+}
+
+const setModeDark = () => {
+  settings.theme = 'dark'
+  localStorage.theme = 'dark'
+  htmlNode.classList.remove('light')
+  htmlNode.classList.add('dark')
+}
+
+const setModeLight = () => {
+  settings.theme = 'light'
+  localStorage.theme = 'light'
+  htmlNode.classList.remove('dark')
+  htmlNode.classList.add('light')
+}
+</script>
+
+<template>
+    <div class="flex items-center cursor-pointer">
+        <svg v-show="isDarkMode" @click="setModeLight" viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" preserveAspectRatio="xMidYMid meet">
+            <circle cx="12" cy="12" r="5"></circle>
+            <line x1="12" y1="1" x2="12" y2="3"></line>
+            <line x1="12" y1="21" x2="12" y2="23"></line>
+            <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
+            <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
+            <line x1="1" y1="12" x2="3" y2="12"></line>
+            <line x1="21" y1="12" x2="23" y2="12"></line>
+            <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
+            <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
+        </svg>
+
+        <svg v-show="isLightMode" @click="setModeDark" viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" preserveAspectRatio="xMidYMid meet">
+            <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
+        </svg>
+    </div>
+</template>