feat[sidebar]: add resonsive sidebar (#636)

src/views/layout/mixin/ResizeHandler.js

@@ -0,0 +1,41 @@
+import store from '@/store'
+
+const { body } = document
+const WIDTH = 1024
+const RATIO = 3
+
+export default {
+  watch: {
+    $route(route) {
+      if (this.device === 'mobile' && this.sidebar.opened) {
+        store.dispatch('closeSideBar', { withoutAnimation: false })
+      }
+    }
+  },
+  beforeMount() {
+    window.addEventListener('resize', this.resizeHandler)
+  },
+  mounted() {
+    const isMobile = this.isMobile()
+    if (isMobile) {
+      store.dispatch('toggleDevice', 'mobile')
+      store.dispatch('closeSideBar', { withoutAnimation: true })
+    }
+  },
+  methods: {
+    isMobile() {
+      const rect = body.getBoundingClientRect()
+      return rect.width - RATIO < WIDTH
+    },
+    resizeHandler() {
+      if (!document.hidden) {
+        const isMobile = this.isMobile()
+        store.dispatch('toggleDevice', isMobile ? 'mobile' : 'desktop')
+
+        if (isMobile) {
+          store.dispatch('closeSideBar', { withoutAnimation: true })
+        }
+      }
+    }
+  }
+}