feat: 封装全屏 loading hook (#41)

src/api/mock.ts

@@ -1,6 +1,3 @@
-// import { request } from "@/utils/service"
-
-/** 查 */
 export function getRemoteSelectData() {
   return new Promise<any>((resolve, reject) => {
     setTimeout(() => {
@@ -33,3 +30,24 @@ export function getRemoteSelectData() {
     }, 3000)
   })
 }
+
+export interface IBirdsItem {
+  id: number
+  name: string
+}
+
+export const getBirds = () => {
+  return new Promise<IBirdsItem[]>((resolve) => {
+    setTimeout(() => {
+      resolve([...Array(5)].map((_t, index) => ({ id: index, name: `t${index}` })))
+    }, 1000)
+  })
+}
+
+export const getCars = (id: number) => {
+  return new Promise((_resolve, reject) => {
+    setTimeout(() => {
+      reject(new Error("sorry" + id))
+    }, 1000)
+  })
+}

src/hooks/useFullscreenLoading.ts

@@ -0,0 +1,60 @@
+import { ElLoading, LoadingOptions } from "element-plus"
+
+const defaultOption = {
+  lock: true,
+  text: "加载中...",
+  background: "rgba(0, 0, 0, 0.7)"
+}
+
+interface ILoading {
+  close: () => void
+}
+
+/**
+ * 传入一个方法 fn，在它执行周期内，加上「全屏」loading
+ * 如果：
+ * 1. fn 是同步方法，结束后隐藏 loading
+ * 2. 如果是异步方法，resolve 后隐藏 loading
+ * 3. 报错后隐藏 loading 并抛出错误
+ * @param {*} fn 函数
+ * @param options
+ * @returns Function 一个新的函数，去执行它吧
+ */
+export const useFullscreenLoading = <T>(
+  fn: (...args: any[]) => T,
+  options: LoadingOptions = {}
+): ((...args: any[]) => Promise<T>) => {
+  let loading: ILoading | undefined
+  const showLoading = (options: LoadingOptions) => {
+    loading = ElLoading.service(options)
+  }
+
+  const hideLoading = () => {
+    loading && loading.close()
+  }
+  const _options = { ...defaultOption, ...options }
+  const newFn = (...args: any[]) => {
+    try {
+      showLoading(_options)
+      const result = fn(...args)
+      const isPromise = result instanceof Promise
+      if (!isPromise) {
+        hideLoading()
+        return Promise.resolve(result)
+      }
+      return result
+        .then((res: any) => {
+          hideLoading()
+          return res
+        })
+        .catch((err: Error) => {
+          hideLoading()
+          throw err
+        })
+    } catch (err) {
+      hideLoading()
+      throw err
+    }
+  }
+  return newFn
+}

src/router/index.ts

@@ -190,16 +190,30 @@ export const constantRoutes: RouteRecordRaw[] = [
     ]
   },
   {
-    path: "/select",
+    path: "/hooks",
     component: Layout,
+    redirect: "/hooks/use-fetch-select",
+    name: "Hooks",
+    meta: {
+      title: "hooks",
+      elIcon: "Menu",
+      alwaysShow: true
+    },
     children: [
       {
-        path: "",
-        component: () => import("@/views/select/index.vue"),
-        name: "Select",
+        path: "use-fetch-select",
+        component: () => import("@/views/hooks/use-fetch-select.vue"),
+        name: "UseFetchSelect",
         meta: {
-          title: "下拉框",
-          svgIcon: "component"
+          title: "useFetchSelect"
+        }
+      },
+      {
+        path: "use-fullscreen-loading",
+        component: () => import("@/views/hooks/use-fullscreen-loading.vue"),
+        name: "UseFullscreenLoading",
+        meta: {
+          title: "useFullscreenLoading"
         }
       }
     ]

src/views/hooks/use-fetch-select.vue

@@ -1,5 +1,5 @@
 <script setup name="Select" lang="ts">
-import { getRemoteSelectData } from "@/api/select"
+import { getRemoteSelectData } from "@/api/mock"
 import { useFetchSelect } from "@/hooks/useFetchSelect"
 
 const { loading, options, selectedValue } = useFetchSelect({

src/views/hooks/use-fullscreen-loading.vue

@@ -0,0 +1,41 @@
+<template>
+  <div class="app-container">
+    <el-button @click="querySuccess">查询成功</el-button>
+    <el-button @click="queryFailed">查询失败</el-button>
+  </div>
+</template>
+
+<script lang="ts" setup>
+import { getBirds, getCars, type IBirdsItem } from "@/api/mock"
+import { useFullscreenLoading } from "@/hooks/useFullscreenLoading"
+import { ElMessage } from "element-plus"
+
+const querySuccess = async () => {
+  const birds = await useFullscreenLoading(getBirds)()
+  ElMessage.success(birds.map((t: IBirdsItem) => t.name).join())
+}
+
+const svg = `
+  <path class="path" d="
+    M 30 15
+    L 28 17
+    M 25.61 25.61
+    A 15 15, 0, 0, 1, 15 30
+    A 15 15, 0, 1, 1, 27.99 7.5
+    L 15 15
+  " style="stroke-width: 4px; fill: rgba(0, 0, 0, 0)"/>
+`
+
+const queryFailed = async () => {
+  try {
+    await useFullscreenLoading(getCars, {
+      text: "自定义加载文字",
+      background: "rgba(255, 214, 210, 0.7)",
+      svg,
+      svgViewBox: "-10, -10, 50, 50"
+    })(233)
+  } catch (err: any) {
+    ElMessage.error(err.message)
+  }
+}
+</script>