<template>
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<div id="tags-view-container" class="tags-view-container">
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<scroll-pane
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ref="scrollPane"
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class="tags-view-wrapper"
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@scroll="handleScroll"
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>
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<tag-item
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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="{
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...tag,
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}"
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tag="span"
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class="tags-view-item"
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@click.native.prevent="toCurrentTag(tag)"
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@click.middle.native="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="!isOnlyOne"
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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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</tag-item>
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</scroll-pane>
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<ul
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v-show="visible"
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:style="{ left: left + 'px', top: top + 'px' }"
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class="contextmenu"
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>
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<li
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:class="{ 'is-disabled': isOnlyOne }"
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@click="closeSelectedTag(selectedTag)"
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>
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关闭
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</li>
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<li :class="{ 'is-disabled': isOnlyOne }" @click="closeOthersTags">
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关闭其他标签页
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</li>
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<li
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:class="{ 'is-disabled': isLastView }"
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@click="closeRight(selectedTag)"
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>
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关闭右侧标签页
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</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 { mapState } from 'vuex'
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import ScrollPane from './scroll-pane'
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import TagItem from './tag-item'
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export default {
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components: { ScrollPane, TagItem },
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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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}
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},
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computed: {
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...mapState({
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visitedViews: (state) => state.tagsView.visitedViews,
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}),
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isLastView() {
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const latestView = this.visitedViews.slice(-1)[0]
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if (latestView?.name && latestView.name === this.selectedTag.name) {
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return true
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}
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return false
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},
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isOnlyOne() {
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return this.visitedViews.length <= 1
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},
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},
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watch: {
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$route() {
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const timer = setTimeout(() => {
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this.addTags()
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this.moveToCurrentTag()
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clearTimeout(timer)
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}, 500)
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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.addTags()
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},
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methods: {
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isActive(route) {
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return route.name === this.$route.name
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},
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toCurrentTag(tag) {
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if (!this.isActive(tag)) {
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this.$router.push(tag.fullPath)
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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/addVisitedView', 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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if (tags) {
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this.$nextTick(() => {
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for (const tag of tags) {
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if (tag.to.name === this.$route.name) {
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this.$refs.scrollPane.moveToTarget(tag, this.visitedViews)
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break
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}
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}
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})
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}
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},
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closeSelectedTag(view) {
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if (!this.isOnlyOne) {
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this.$store
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.dispatch('tagsView/delVisitedView', view)
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.then((visitedViews) => {
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if (this.isActive(view)) {
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this.toLastView(visitedViews)
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// this.moveToCurrentTag()
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}
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})
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}
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},
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closeOthersTags() {
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if (!this.isOnlyOne) {
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this.$router.push(this.selectedTag)
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this.$store
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.dispatch('tagsView/delOthersVisitedViews', 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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},
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closeRight() {
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if (!this.isLastView) {
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this.$store
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.dispatch('tagsView/delRightVisitedViews', this.selectedTag)
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.then((visitedViews) => {
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if (!visitedViews.find((item) => item.name === this.$route.name)) {
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if (
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this.$route.matched.slice(-1)[0]?.instances?.default?.$metaInfo
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?.title
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) {
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this.toLastView(visitedViews)
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}
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}
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})
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}
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},
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toLastView(visitedViews) {
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const latestView = visitedViews.slice(-1)[0]
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if (latestView) {
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this.$router.push(latestView.fullPath)
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}
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},
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openMenu(tag, e) {
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const menuMinWidth = 105
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const offsetLeft = this.$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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handleScroll() {
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this.closeMenu()
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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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&.is-disabled {
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color: #999;
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cursor: not-allowed;
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}
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&:not(.is-disabled):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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