302 lines
		
	
	
		
			7.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
			
		
		
	
	
			302 lines
		
	
	
		
			7.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
<template>
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  <div id="tags-view-container" class="tags-view-container">
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    <scroll-pane ref="scrollPane" class="tags-view-wrapper">
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      <router-link
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        v-for="tag in visitedViews"
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        ref="tag"
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        :key="tag.path"
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        :class="isActive(tag)?'active':''"
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        :to="{ path: tag.path, query: tag.query, fullPath: tag.fullPath }"
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        tag="span"
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        class="tags-view-item"
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        @click.middle.native="!isAffix(tag)?closeSelectedTag(tag):''"
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        @contextmenu.prevent.native="openMenu(tag,$event)"
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      >
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        {{ tag.title }}
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        <span
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          v-if="!isAffix(tag)"
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          class="el-icon-close"
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          @click.prevent.stop="closeSelectedTag(tag)"
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        />
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      </router-link>
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    </scroll-pane>
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    <ul v-show="visible" :style="{left:left+'px',top:top+'px'}" class="contextmenu">
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      <li @click="refreshSelectedTag(selectedTag)">Refresh</li>
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      <li v-if="!isAffix(selectedTag)" @click="closeSelectedTag(selectedTag)">Close</li>
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      <li @click="closeOthersTags">Close Others</li>
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      <li @click="closeAllTags(selectedTag)">Close All</li>
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    </ul>
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  </div>
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</template>
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<script>
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import ScrollPane from './ScrollPane'
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import path from 'path'
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export default {
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  components: { ScrollPane },
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  data() {
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    return {
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      visible: false,
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      top: 0,
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      left: 0,
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      selectedTag: {},
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      affixTags: []
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    }
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  },
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  computed: {
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    visitedViews() {
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      return this.$store.state.tagsView.visitedViews
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    }
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    // routes() {
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    //   return this.$store.state.permission.routes
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    // }
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  },
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  watch: {
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    $route() {
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      this.addTags()
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      this.moveToCurrentTag()
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    },
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    visible(value) {
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      if (value) {
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        document.body.addEventListener('click', this.closeMenu)
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      } else {
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        document.body.removeEventListener('click', this.closeMenu)
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      }
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    }
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  },
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  mounted() {
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    this.initTags()
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    this.addTags()
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  },
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  methods: {
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    isActive(route) {
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      return route.path === this.$route.path
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    },
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    isAffix(tag) {
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      return tag.meta && tag.meta.affix
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    },
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    filterAffixTags(routes, basePath = '/') {
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      let tags = []
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      // 判断是否为空,否则控制台会报错
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      if (this.routes) {
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        routes.forEach(route => {
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          if (route.meta && route.meta.affix) {
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            const tagPath = path.resolve(basePath, route.path)
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            tags.push({
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              fullPath: tagPath,
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              path: tagPath,
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              name: route.name,
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              meta: { ...route.meta }
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            })
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          }
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          if (route.children) {
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            const tempTags = this.filterAffixTags(route.children, route.path)
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            if (tempTags.length >= 1) {
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              tags = [...tags, ...tempTags]
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            }
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          }
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        })
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      }
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      return tags
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    },
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    initTags() {
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      const affixTags = (this.affixTags = this.filterAffixTags(this.routes))
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      for (const tag of affixTags) {
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        // Must have tag name
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        if (tag.name) {
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          this.$store.dispatch('tagsView/addVisitedView', tag)
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        }
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      }
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    },
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    addTags() {
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      const { name } = this.$route
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      if (name) {
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        this.$store.dispatch('tagsView/addView', this.$route)
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      }
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      return false
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    },
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    moveToCurrentTag() {
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      const tags = this.$refs.tag
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      this.$nextTick(() => {
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        for (const tag of tags) {
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          if (tag.to.path === this.$route.path) {
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            this.$refs.scrollPane.moveToTarget(tag)
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            // when query is different then update
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            if (tag.to.fullPath !== this.$route.fullPath) {
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              this.$store.dispatch('tagsView/updateVisitedView', this.$route)
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            }
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            break
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          }
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        }
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      })
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    },
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    refreshSelectedTag(view) {
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      this.$store.dispatch('tagsView/delCachedView', view).then(() => {
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        const { fullPath } = view
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        this.$nextTick(() => {
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          this.$router.replace({
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            path: '/redirect' + fullPath
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          })
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        })
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      })
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    },
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    closeSelectedTag(view) {
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      this.$store
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        .dispatch('tagsView/delView', view)
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        .then(({ visitedViews }) => {
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          if (this.isActive(view)) {
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            this.toLastView(visitedViews, view)
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          }
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        })
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    },
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    closeOthersTags() {
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      this.$router.push(this.selectedTag)
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      this.$store
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        .dispatch('tagsView/delOthersViews', this.selectedTag)
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        .then(() => {
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          this.moveToCurrentTag()
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        })
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    },
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    closeAllTags(view) {
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      this.$store.dispatch('tagsView/delAllViews').then(({ visitedViews }) => {
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        if (this.affixTags.some(tag => tag.path === view.path)) {
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          return
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        }
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        this.toLastView(visitedViews, view)
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      })
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    },
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    toLastView(visitedViews, view) {
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      const latestView = visitedViews.slice(-1)[0]
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      if (latestView) {
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        this.$router.push(latestView.fullPath)
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      } else {
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        // now the default is to redirect to the home page if there is no tags-view,
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        // you can adjust it according to your needs.
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        if (view.name === 'Dashboard') {
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          // to reload home page
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          this.$router.replace({ path: '/redirect' + view.fullPath })
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        } else {
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          this.$router.push('/')
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        }
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      }
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    },
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    openMenu(tag, e) {
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      const menuMinWidth = 105
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      const offsetLeft = this.$el.getBoundingClientRect().left // container margin left
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      const offsetWidth = this.$el.offsetWidth // container width
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      const maxLeft = offsetWidth - menuMinWidth // left boundary
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      const left = e.clientX - offsetLeft + 15 // 15: margin right
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      if (left > maxLeft) {
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        this.left = maxLeft
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      } else {
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        this.left = left
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      }
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      this.top = e.clientY
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      this.visible = true
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      this.selectedTag = tag
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    },
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    closeMenu() {
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      this.visible = false
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    }
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  }
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}
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</script>
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<style lang="scss" scoped>
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.tags-view-container {
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  height: 34px;
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  width: 100%;
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  background: #fff;
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  border-bottom: 1px solid #d8dce5;
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  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.12), 0 0 3px 0 rgba(0, 0, 0, 0.04);
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  .tags-view-wrapper {
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    .tags-view-item {
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      display: inline-block;
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      position: relative;
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      cursor: pointer;
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      height: 26px;
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      line-height: 26px;
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      border: 1px solid #d8dce5;
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      color: #495060;
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      background: #fff;
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      padding: 0 8px;
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      font-size: 12px;
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      margin-left: 5px;
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      margin-top: 4px;
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      &:first-of-type {
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        margin-left: 15px;
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      }
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      &:last-of-type {
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        margin-right: 15px;
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      }
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      &.active {
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        background-color: #42b983;
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        color: #fff;
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        border-color: #42b983;
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        &::before {
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          content: "";
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          background: #fff;
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          display: inline-block;
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          width: 8px;
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          height: 8px;
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          border-radius: 50%;
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          position: relative;
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          margin-right: 2px;
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        }
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      }
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    }
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  }
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  .contextmenu {
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    margin: 0;
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    background: #fff;
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    z-index: 3000;
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    position: absolute;
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    list-style-type: none;
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    padding: 5px 0;
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    border-radius: 4px;
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    font-size: 12px;
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    font-weight: 400;
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    color: #333;
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    box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, 0.3);
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    li {
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      margin: 0;
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      padding: 7px 16px;
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      cursor: pointer;
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      &:hover {
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        background: #eee;
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      }
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    }
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  }
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}
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</style>
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<style lang="scss">
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//reset element css of el-icon-close
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.tags-view-wrapper {
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  .tags-view-item {
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    .el-icon-close {
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      width: 16px;
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      height: 16px;
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      vertical-align: 2px;
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      border-radius: 50%;
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      text-align: center;
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      transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
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      transform-origin: 100% 50%;
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      &:before {
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        transform: scale(0.6);
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        display: inline-block;
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        vertical-align: -3px;
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      }
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      &:hover {
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        background-color: #b4bccc;
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        color: #fff;
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      }
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    }
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  }
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}
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</style>
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