From c71f3110fb415c5da940f3436d5c8ff3244659c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8A=B1=E8=A3=A4=E8=A1=A9?= <panfree23@gmail.com>
Date: Wed, 13 Feb 2019 15:09:14 +0800
Subject: [PATCH] feature[Navbar]: add header-search component (#1591)

* init

* init

* refactor search function by fuse

* fix bug

* fix bug

* tweak
---
 package.json                           |   1 +
 src/components/HeaderSearch/index.vue  | 187 +++++++++++++++++++++++++
 src/icons/svg/search.svg               |   1 +
 src/views/layout/components/Navbar.vue |  35 +++--
 4 files changed, 212 insertions(+), 12 deletions(-)
 create mode 100644 src/components/HeaderSearch/index.vue
 create mode 100644 src/icons/svg/search.svg

diff --git a/package.json b/package.json
index 83e93bce..5854b8d6 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
     "echarts": "4.1.0",
     "element-ui": "2.4.11",
     "file-saver": "1.3.8",
+    "fuse.js": "3.4.2",
     "js-cookie": "2.2.0",
     "jsonlint": "1.6.3",
     "jszip": "3.1.5",
diff --git a/src/components/HeaderSearch/index.vue b/src/components/HeaderSearch/index.vue
new file mode 100644
index 00000000..ab0d556a
--- /dev/null
+++ b/src/components/HeaderSearch/index.vue
@@ -0,0 +1,187 @@
+<template>
+  <div :class="{'show':show}" class="header-search">
+    <svg-icon class-name="search-icon" icon-class="search" @click="click" />
+    <el-select
+      ref="headerSearchSelect"
+      v-model="search"
+      :remote-method="querySearch"
+      filterable
+      default-first-option
+      remote
+      placeholder="Search"
+      class="header-search-select"
+      @change="change">
+      <el-option v-for="item in options" :key="item.path" :value="item" :label="item.title.join(' > ')"/>
+    </el-select>
+  </div>
+</template>
+
+<script>
+import Fuse from 'fuse.js'
+import path from 'path'
+import i18n from '@/lang'
+
+export default {
+  name: 'HeaderSearch',
+  data() {
+    return {
+      search: '',
+      options: [],
+      searchPool: [],
+      show: false,
+      fuse: undefined
+    }
+  },
+  computed: {
+    routers() {
+      return this.$store.getters.permission_routers
+    },
+    lang() {
+      return this.$store.getters.language
+    }
+  },
+  watch: {
+    lang() {
+      this.searchPool = this.generateRouters(this.routers)
+    },
+    routers() {
+      this.searchPool = this.generateRouters(this.routers)
+    },
+    searchPool(list) {
+      this.initFuse(list)
+    },
+    show(value) {
+      if (value) {
+        document.body.addEventListener('click', this.close)
+      } else {
+        document.body.removeEventListener('click', this.close)
+      }
+    }
+  },
+  mounted() {
+    this.searchPool = this.generateRouters(this.routers)
+  },
+  methods: {
+    click() {
+      this.show = !this.show
+      if (this.show) {
+        this.$refs.headerSearchSelect && this.$refs.headerSearchSelect.focus()
+      }
+    },
+    close() {
+      this.$refs.headerSearchSelect && this.$refs.headerSearchSelect.blur()
+      this.options = []
+      this.show = false
+    },
+    change(val) {
+      this.$router.push(val.path)
+      this.search = ''
+      this.options = []
+      this.$nextTick(() => {
+        this.show = false
+      })
+    },
+    initFuse(list) {
+      this.fuse = new Fuse(list, {
+        shouldSort: true,
+        threshold: 0.4,
+        location: 0,
+        distance: 100,
+        maxPatternLength: 32,
+        minMatchCharLength: 1,
+        keys: [{
+          name: 'title',
+          weight: 0.7
+        }, {
+          name: 'path',
+          weight: 0.3
+        }]
+      })
+    },
+    // Filter out the routes that can be displayed in the sidebar
+    // And generate the internationalized title
+    generateRouters(routers, basePath = '/', prefixTitle = []) {
+      let res = []
+
+      for (const router of routers) {
+        // skip hidden router
+        if (router.hidden) { continue }
+
+        const data = {
+          path: path.resolve(basePath, router.path),
+          title: [...prefixTitle]
+        }
+
+        if (router.meta && router.meta.title) {
+          // generate internationalized title
+          const i18ntitle = i18n.t(`route.${router.meta.title}`)
+
+          data.title = [...data.title, i18ntitle]
+
+          if (router.redirect !== 'noredirect') {
+            // only push the routes with title
+            // special case: need to exclude parent router without redirect
+            res.push(data)
+          }
+        }
+
+        // recursive child routers
+        if (router.children) {
+          const tempRouters = this.generateRouters(router.children, data.path, data.title)
+          if (tempRouters.length >= 1) {
+            res = [...res, ...tempRouters]
+          }
+        }
+      }
+      return res
+    },
+    querySearch(query) {
+      if (query !== '') {
+        this.options = this.fuse.search(query)
+      } else {
+        this.options = []
+      }
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.header-search {
+  font-size: 0 !important;
+
+  .search-icon {
+    cursor: pointer;
+    font-size: 18px;
+    vertical-align: middle;
+  }
+
+  .header-search-select {
+    font-size: 18px;
+    transition: width 0.2s;
+    width: 0;
+    overflow: hidden;
+    background: transparent;
+    border-radius: 0;
+    display: inline-block;
+    vertical-align: middle;
+
+    /deep/ .el-input__inner {
+      border-radius: 0;
+      border: 0;
+      padding-left: 0;
+      padding-right: 0;
+      box-shadow: none !important;
+      border-bottom: 1px solid #d9d9d9;
+      vertical-align: middle;
+    }
+  }
+
+  &.show {
+    .header-search-select {
+      width: 210px;
+      margin-left: 10px;
+    }
+  }
+}
+</style>
diff --git a/src/icons/svg/search.svg b/src/icons/svg/search.svg
new file mode 100644
index 00000000..84233dda
--- /dev/null
+++ b/src/icons/svg/search.svg
@@ -0,0 +1 @@
+<svg width="128" height="128" xmlns="http://www.w3.org/2000/svg"><path d="M124.884 109.812L94.256 79.166c-.357-.357-.757-.629-1.129-.914a50.366 50.366 0 0 0 8.186-27.59C101.327 22.689 78.656 0 50.67 0 22.685 0 0 22.688 0 50.663c0 27.989 22.685 50.663 50.656 50.663 10.186 0 19.643-3.03 27.6-8.201.286.385.557.771.9 1.114l30.628 30.632a10.633 10.633 0 0 0 7.543 3.129c2.728 0 5.457-1.043 7.543-3.115 4.171-4.157 4.171-10.915.014-15.073M50.671 85.338C31.557 85.338 16 69.78 16 50.663c0-19.102 15.557-34.661 34.67-34.661 19.115 0 34.657 15.559 34.657 34.675 0 19.102-15.557 34.661-34.656 34.661"/></svg>
\ No newline at end of file
diff --git a/src/views/layout/components/Navbar.vue b/src/views/layout/components/Navbar.vue
index 018ef0f9..dcb09ec1 100644
--- a/src/views/layout/components/Navbar.vue
+++ b/src/views/layout/components/Navbar.vue
@@ -6,24 +6,26 @@
 
     <div class="right-menu">
       <template v-if="device!=='mobile'">
-        <error-log class="errLog-container right-menu-item"/>
+        <search class="right-menu-item" />
+
+        <error-log class="errLog-container right-menu-item hover-effect"/>
 
         <el-tooltip :content="$t('navbar.screenfull')" effect="dark" placement="bottom">
-          <screenfull class="right-menu-item"/>
+          <screenfull class="right-menu-item hover-effect"/>
         </el-tooltip>
 
         <el-tooltip :content="$t('navbar.size')" effect="dark" placement="bottom">
-          <size-select class="right-menu-item"/>
+          <size-select class="right-menu-item hover-effect"/>
         </el-tooltip>
 
-        <lang-select class="right-menu-item"/>
+        <lang-select class="right-menu-item hover-effect"/>
 
         <el-tooltip :content="$t('navbar.theme')" effect="dark" placement="bottom">
-          <theme-picker class="theme-picker right-menu-item"/>
+          <theme-picker class="right-menu-item hover-effect"/>
         </el-tooltip>
       </template>
 
-      <el-dropdown class="avatar-container right-menu-item" trigger="click">
+      <el-dropdown class="avatar-container right-menu-item hover-effect" trigger="click">
         <div class="avatar-wrapper">
           <img :src="avatar+'?imageView2/1/w/80/h/80'" class="user-avatar">
           <i class="el-icon-caret-bottom"/>
@@ -57,6 +59,7 @@ import Screenfull from '@/components/Screenfull'
 import SizeSelect from '@/components/SizeSelect'
 import LangSelect from '@/components/LangSelect'
 import ThemePicker from '@/components/ThemePicker'
+import Search from '@/components/HeaderSearch'
 
 export default {
   components: {
@@ -66,7 +69,8 @@ export default {
     Screenfull,
     SizeSelect,
     LangSelect,
-    ThemePicker
+    ThemePicker,
+    Search
   },
   computed: {
     ...mapGetters([
@@ -100,6 +104,7 @@ export default {
     float: left;
     cursor: pointer;
     transition: background .3s;
+
     &:hover {
       background: rgba(0, 0, 0, .025)
     }
@@ -124,24 +129,30 @@ export default {
     }
 
     .right-menu-item {
-      cursor: pointer;
       display: inline-block;
       padding: 0 8px;
       height: 100%;
-      font-size: 20px;
+      font-size: 18px;
       color: #5a5e66;
       vertical-align: text-bottom;
-      transition: background .3s;
-      &:hover {
-        background: rgba(0, 0, 0, .025)
+
+      &.hover-effect {
+        cursor: pointer;
+        transition: background .3s;
+
+        &:hover {
+          background: rgba(0, 0, 0, .025)
+        }
       }
     }
 
     .avatar-container {
       margin-right: 30px;
+
       .avatar-wrapper {
         margin-top: 5px;
         position: relative;
+
         .user-avatar {
           cursor: pointer;
           width: 40px;