From 58c1c7e7059d9be8b4dc17c65a43393534dd2073 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E5=8A=9B?= <soldierliuli@hotmail.com>
Date: Wed, 20 Oct 2021 11:21:08 +0800
Subject: [PATCH] =?UTF-8?q?=E8=8F=9C=E5=8D=95=E8=81=94=E5=8A=A8=E5=8A=9F?=
 =?UTF-8?q?=E8=83=BD?=
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---
 src/layout/components/AppMain.vue             |  33 ++
 src/layout/components/Sidebar/SidebarItem.vue |  15 +-
 src/layout/components/TagsView/ScrollPane.vue |  81 +++++
 src/layout/components/TagsView/index.vue      | 285 ++++++++++++++++++
 src/layout/components/Topbar.vue              |   2 +-
 src/store/modules/permission.js               |   9 +-
 6 files changed, 421 insertions(+), 4 deletions(-)
 create mode 100644 src/layout/components/TagsView/ScrollPane.vue
 create mode 100644 src/layout/components/TagsView/index.vue

diff --git a/src/layout/components/AppMain.vue b/src/layout/components/AppMain.vue
index 156150d..4fd7590 100644
--- a/src/layout/components/AppMain.vue
+++ b/src/layout/components/AppMain.vue
@@ -21,3 +21,36 @@ export default {
   }
 }
 </script>
+
+<style lang="scss" scoped>
+.app-main {
+  /* 50= navbar  50  */
+  min-height: calc(100vh - 50px);
+  width: 100%;
+  position: relative;
+  overflow: hidden;
+}
+
+.fixed-header+.app-main {
+  padding-top: 50px;
+}
+
+.hasTagsView {
+  .app-main {
+
+    min-height: calc(100vh - 84px);
+  }
+
+  .fixed-header+.app-main {
+    padding-top: 84px;
+  }
+}
+</style>
+
+<style lang="scss">
+.el-popup-parent--hidden {
+  .fixed-header {
+    padding-right: 15px;
+  }
+}
+</style>
diff --git a/src/layout/components/Sidebar/SidebarItem.vue b/src/layout/components/Sidebar/SidebarItem.vue
index e836529..59c736e 100644
--- a/src/layout/components/Sidebar/SidebarItem.vue
+++ b/src/layout/components/Sidebar/SidebarItem.vue
@@ -20,10 +20,17 @@
 <script>
 import path from 'path'
 import { isExternal } from '@/utils/validate'
+import Item from './Item'
+import AppLink from './Link'
+import FixiOSBug from './FixiOSBug'
 
 export default {
   name: 'SidebarItem',
-
+  components: {
+    Item,
+    AppLink
+  },
+  mixins: [FixiOSBug],
   props: {
     // route object
     item: {
@@ -72,7 +79,11 @@ export default {
       if (isExternal(this.basePath)) {
         return this.basePath
       }
-      return path.resolve(this.basePath, routePath)
+      const currentRoutes = this.$store.state.permission.currentRoutes
+      if (currentRoutes && currentRoutes.path) {
+        return path.resolve(currentRoutes.path, this.basePath, routePath)
+      }
+      // return path.resolve(this.basePath, routePath)
     }
   }
 }
diff --git a/src/layout/components/TagsView/ScrollPane.vue b/src/layout/components/TagsView/ScrollPane.vue
new file mode 100644
index 0000000..b15b959
--- /dev/null
+++ b/src/layout/components/TagsView/ScrollPane.vue
@@ -0,0 +1,81 @@
+<template>
+  <el-scrollbar ref="scrollContainer" :vertical="false" class="scroll-container" @wheel.native.prevent="handleScroll">
+    <slot />
+  </el-scrollbar>
+</template>
+
+<script>
+const tagAndTagSpacing = 4
+
+export default {
+  name: 'ScrollPane',
+  data() {
+    return {
+      left: 0
+    }
+  },
+  computed: {
+    scrollWrapper() {
+      return this.$refs.scrollContainer.$refs.wrap
+    }
+  },
+  methods: {
+    handleScroll(e) {
+      const eventDelta = e.wheelDelta || -e.deltaY * 40
+      const $scrollWrapper = this.scrollWrapper
+      $scrollWrapper.scrollLeft = $scrollWrapper.scrollLeft + eventDelta / 4
+    },
+    moveToTarget(currentTag) {
+      const $container = this.$refs.scrollContainer.$el
+      const $containerWidth = $container.offsetWidth
+      const $scrollWrapper = this.scrollWrapper
+      const tagList = this.$parent.$refs.tag
+
+      let firstTag = null
+      let lastTag = null
+
+      if (tagList.length > 0) {
+        firstTag = tagList[0]
+        lastTag = tagList[tagList.length - 1]
+      }
+
+      if (firstTag === currentTag) {
+        $scrollWrapper.scrollLeft = 0
+      } else if (lastTag === currentTag) {
+        $scrollWrapper.scrollLeft = $scrollWrapper.scrollWidth - $containerWidth
+      } else {
+        const currentIndex = tagList.findIndex(item => item === currentTag)
+        const prevTag = tagList[currentIndex - 1]
+        const nextTag = tagList[currentIndex + 1]
+
+        const afterNextTagOffsetLeft = nextTag.$el.offsetLeft + nextTag.$el.offsetWidth + tagAndTagSpacing
+
+        const beforePrevTagOffsetLeft = prevTag.$el.offsetLeft - tagAndTagSpacing
+
+        if (afterNextTagOffsetLeft > $scrollWrapper.scrollLeft + $containerWidth) {
+          $scrollWrapper.scrollLeft = afterNextTagOffsetLeft - $containerWidth
+        } else if (beforePrevTagOffsetLeft < $scrollWrapper.scrollLeft) {
+          $scrollWrapper.scrollLeft = beforePrevTagOffsetLeft
+        }
+      }
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.scroll-container {
+  white-space: nowrap;
+  position: relative;
+  overflow: hidden;
+  width: 100%;
+ ::v-deep {
+    .el-scrollbar__bar {
+      bottom: 0px;
+    }
+    .el-scrollbar__wrap {
+      height: 49px;
+    }
+  }
+}
+</style>
diff --git a/src/layout/components/TagsView/index.vue b/src/layout/components/TagsView/index.vue
new file mode 100644
index 0000000..c31f0c3
--- /dev/null
+++ b/src/layout/components/TagsView/index.vue
@@ -0,0 +1,285 @@
+<template>
+  <div id="tags-view-container" class="tags-view-container">
+    <scroll-pane ref="scrollPane" class="tags-view-wrapper">
+      <router-link
+        v-for="tag in visitedViews"
+        ref="tag"
+        :key="tag.path"
+        :class="isActive(tag)?'active':''"
+        :to="{ path: tag.path, query: tag.query, fullPath: tag.fullPath }"
+        tag="span"
+        class="tags-view-item"
+        @click.middle.native="closeSelectedTag(tag)"
+        @contextmenu.prevent.native="openMenu(tag,$event)"
+      >
+        {{ tag.title }}
+        <span v-if="!tag.meta.affix" class="el-icon-close" @click.prevent.stop="closeSelectedTag(tag)" />
+      </router-link>
+    </scroll-pane>
+    <ul v-show="visible" :style="{left:left+'px',top:top+'px'}" class="contextmenu">
+      <li @click="refreshSelectedTag(selectedTag)">刷新</li>
+      <li v-if="!(selectedTag.meta&&selectedTag.meta.affix)" @click="closeSelectedTag(selectedTag)">关闭</li>
+      <li @click="closeOthersTags">关闭其他</li>
+      <li @click="closeAllTags(selectedTag)">关闭全部</li>
+    </ul>
+  </div>
+</template>
+
+<script>
+import ScrollPane from './ScrollPane'
+import path from 'path'
+
+export default {
+  components: { ScrollPane },
+  data() {
+    return {
+      visible: false,
+      top: 0,
+      left: 0,
+      selectedTag: {},
+      affixTags: []
+    }
+  },
+  computed: {
+    visitedViews() {
+      return this.$store.state.tagsView.visitedViews
+    },
+    routes() {
+      return this.$store.state.permission.routers
+    }
+  },
+  watch: {
+    $route() {
+      this.addTags()
+      this.moveToCurrentTag()
+    },
+    visible(value) {
+      if (value) {
+        document.body.addEventListener('click', this.closeMenu)
+      } else {
+        document.body.removeEventListener('click', this.closeMenu)
+      }
+    }
+  },
+  mounted() {
+    this.initTags()
+    this.addTags()
+  },
+  methods: {
+    isActive(route) {
+      return route.path === this.$route.path
+    },
+    filterAffixTags(routes, basePath = '/') {
+      let tags = []
+      routes.forEach(route => {
+        if (route.meta && route.meta.affix) {
+          const tagPath = path.resolve(basePath, route.path)
+          tags.push({
+            fullPath: tagPath,
+            path: tagPath,
+            name: route.name,
+            meta: { ...route.meta }
+          })
+        }
+        if (route.children) {
+          const tempTags = this.filterAffixTags(route.children, route.path)
+          if (tempTags.length >= 1) {
+            tags = [...tags, ...tempTags]
+          }
+        }
+      })
+      return tags
+    },
+    initTags() {
+      const affixTags = this.affixTags = this.filterAffixTags(this.routes)
+      for (const tag of affixTags) {
+        // Must have tag name
+        if (tag.name) {
+          this.$store.dispatch('tagsView/addVisitedView', tag)
+        }
+      }
+    },
+    addTags() {
+      const { name } = this.$route
+      if (name) {
+        this.$store.dispatch('tagsView/addView', this.$route)
+      }
+      return false
+    },
+    moveToCurrentTag() {
+      const tags = this.$refs.tag
+      this.$nextTick(() => {
+        for (const tag of tags) {
+          if (tag.to.path === this.$route.path) {
+            this.$refs.scrollPane.moveToTarget(tag)
+            if (tag.to.fullPath !== this.$route.fullPath) {
+              this.$store.dispatch('tagsView/updateVisitedView', this.$route)
+            }
+            break
+          }
+        }
+      })
+    },
+    refreshSelectedTag(view) {
+      this.$store.dispatch('tagsView/delCachedView', view).then(() => {
+        const { fullPath } = view
+        this.$nextTick(() => {
+          this.$router.replace({
+            path: '/redirect' + fullPath
+          })
+        })
+      })
+    },
+    closeSelectedTag(view) {
+      this.$store.dispatch('tagsView/delView', view).then(({ visitedViews }) => {
+        if (this.isActive(view)) {
+          this.toLastView(visitedViews, view)
+        }
+      })
+    },
+    closeOthersTags() {
+      this.$router.push(this.selectedTag)
+      this.$store.dispatch('tagsView/delOthersViews', this.selectedTag).then(() => {
+        this.moveToCurrentTag()
+      })
+    },
+    closeAllTags(view) {
+      this.$store.dispatch('tagsView/delAllViews').then(({ visitedViews }) => {
+        if (this.affixTags.some(tag => tag.path === view.path)) {
+          return
+        }
+        this.toLastView(visitedViews, view)
+      })
+    },
+    toLastView(visitedViews, view) {
+      const latestView = visitedViews.slice(-1)[0]
+      if (latestView) {
+        this.$router.push(latestView)
+      } else {
+        // now the default is to redirect to the home page if there is no tags-view,
+        // you can adjust it according to your needs.
+        if (view.name === 'Dashboard') {
+          // to reload home page
+          this.$router.replace({ path: '/redirect' + view.fullPath })
+        } else {
+          this.$router.push('/')
+        }
+      }
+    },
+    openMenu(tag, e) {
+      const menuMinWidth = 105
+      const offsetLeft = this.$el.getBoundingClientRect().left // container margin left
+      const offsetWidth = this.$el.offsetWidth // container width
+      const maxLeft = offsetWidth - menuMinWidth // left boundary
+      const left = e.clientX - offsetLeft + 15 // 15: margin right
+
+      if (left > maxLeft) {
+        this.left = maxLeft
+      } else {
+        this.left = left
+      }
+
+      this.top = e.clientY
+      this.visible = true
+      this.selectedTag = tag
+    },
+    closeMenu() {
+      this.visible = false
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.tags-view-container {
+  height: 34px;
+  width: 100%;
+  background: #fff;
+  border-bottom: 1px solid #d8dce5;
+  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, .12), 0 0 3px 0 rgba(0, 0, 0, .04);
+  .tags-view-wrapper {
+    .tags-view-item {
+      display: inline-block;
+      position: relative;
+      cursor: pointer;
+      height: 26px;
+      line-height: 26px;
+      border: 1px solid #d8dce5;
+      color: #495060;
+      background: #fff;
+      padding: 0 8px;
+      font-size: 12px;
+      margin-left: 5px;
+      margin-top: 4px;
+      &:first-of-type {
+        margin-left: 15px;
+      }
+      &:last-of-type {
+        margin-right: 15px;
+      }
+      &.active {
+        background-color: #42b983;
+        color: #fff;
+        border-color: #42b983;
+        &::before {
+          content: '';
+          background: #fff;
+          display: inline-block;
+          width: 8px;
+          height: 8px;
+          border-radius: 50%;
+          position: relative;
+          margin-right: 2px;
+        }
+      }
+    }
+  }
+  .contextmenu {
+    margin: 0;
+    background: #fff;
+    z-index: 3000;
+    position: absolute;
+    list-style-type: none;
+    padding: 5px 0;
+    border-radius: 4px;
+    font-size: 12px;
+    font-weight: 400;
+    color: #333;
+    box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, .3);
+    li {
+      margin: 0;
+      padding: 7px 16px;
+      cursor: pointer;
+      &:hover {
+        background: #eee;
+      }
+    }
+  }
+}
+</style>
+
+<style lang="scss">
+//reset element css of el-icon-close
+.tags-view-wrapper {
+  .tags-view-item {
+    .el-icon-close {
+      width: 16px;
+      height: 16px;
+      vertical-align: 2px;
+      border-radius: 50%;
+      text-align: center;
+      transition: all .3s cubic-bezier(.645, .045, .355, 1);
+      transform-origin: 100% 50%;
+      &:before {
+        transform: scale(.6);
+        display: inline-block;
+        vertical-align: -3px;
+      }
+      &:hover {
+        background-color: #b4bccc;
+        color: #fff;
+      }
+    }
+  }
+}
+</style>
diff --git a/src/layout/components/Topbar.vue b/src/layout/components/Topbar.vue
index 6386335..69675d4 100644
--- a/src/layout/components/Topbar.vue
+++ b/src/layout/components/Topbar.vue
@@ -174,7 +174,7 @@ export default {
     handleSelect(key, keyPath) {
       // 把选中路由的子路由保存store
       const route = this.routes.find(item => item.path === key)
-      this.$store.commit('permission/SET_CURRENT_ROUTES', route)
+      this.$store.commit('SET_CURRENT_ROUTES', route)
       this.setSidebarHide(route)
     },
     // 设置侧边栏的显示和隐藏
diff --git a/src/store/modules/permission.js b/src/store/modules/permission.js
index 70ed46a..27e4868 100644
--- a/src/store/modules/permission.js
+++ b/src/store/modules/permission.js
@@ -8,7 +8,8 @@ const permission = {
     routers: constantRouterMap,
     addRouters: [],
     sidebarRouters: [],
-    navMenus: []
+    navMenus: [],
+    currentRoutes: {}
   },
   // 同步更改状态
   mutations: {
@@ -21,6 +22,9 @@ const permission = {
     },
     SET_NAV_MENUS: (state, routers) => {
       state.navMenus = routers
+    },
+    SET_CURRENT_ROUTES: (state, routers) => {
+      state.currentRoutes = routers
     }
   },
   // 发送异步请求拿到数据
@@ -34,6 +38,9 @@ const permission = {
     SetNavMenus({ commit }, sidebarRouter) {
       commit('SET_NAV_MENUS', sidebarRouter)
     }
+    // SetCurrentRoutes({ commit }, routes) {
+    //   commit('SET_CURRENT_ROUTES', routes)
+    // }
   }
 }