<script>
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import events from './events'
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export default {
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name: 'MultiTab',
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data () {
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return {
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fullPathList: [],
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pages: [],
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activeKey: '',
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newTabIndex: 0
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}
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},
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created () {
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// bind event
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events.$on('open', val => {
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if (!val) {
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throw new Error(`multi-tab: open tab ${val} err`)
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}
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this.activeKey = val
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}).$on('close', val => {
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if (!val) {
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this.closeThat(this.activeKey)
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return
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}
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this.closeThat(val)
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}).$on('rename', ({ key, name }) => {
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console.log('rename', key, name)
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try {
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const item = this.pages.find(item => item.path === key)
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item.meta.customTitle = name
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this.$forceUpdate()
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} catch (e) {
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}
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})
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this.pages.push(this.$route)
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this.fullPathList.push(this.$route.fullPath)
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this.selectedLastPath()
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},
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methods: {
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onEdit (targetKey, action) {
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this[action](targetKey)
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},
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remove (targetKey) {
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this.pages = this.pages.filter(page => page.fullPath !== targetKey)
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this.fullPathList = this.fullPathList.filter(path => path !== targetKey)
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// 判断当前标签是否关闭，若关闭则跳转到最后一个还存在的标签页
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if (!this.fullPathList.includes(this.activeKey)) {
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this.selectedLastPath()
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}
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},
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selectedLastPath () {
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this.activeKey = this.fullPathList[this.fullPathList.length - 1]
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},
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// content menu
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closeThat (e) {
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// 判断是否为最后一个标签页，如果是最后一个，则无法被关闭
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if (this.fullPathList.length > 1) {
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this.remove(e)
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} else {
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this.$message.info('这是最后一个标签了, 无法被关闭')
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}
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},
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closeLeft (e) {
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const currentIndex = this.fullPathList.indexOf(e)
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if (currentIndex > 0) {
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this.fullPathList.forEach((item, index) => {
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if (index < currentIndex) {
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this.remove(item)
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}
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})
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} else {
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this.$message.info('左侧没有标签')
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}
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},
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closeRight (e) {
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const currentIndex = this.fullPathList.indexOf(e)
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if (currentIndex < (this.fullPathList.length - 1)) {
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this.fullPathList.forEach((item, index) => {
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if (index > currentIndex) {
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this.remove(item)
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}
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})
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} else {
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this.$message.info('右侧没有标签')
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}
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},
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closeAll (e) {
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const currentIndex = this.fullPathList.indexOf(e)
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this.fullPathList.forEach((item, index) => {
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if (index !== currentIndex) {
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this.remove(item)
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}
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})
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},
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closeMenuClick (key, route) {
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this[key](route)
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},
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renderTabPaneMenu (e) {
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return (
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<a-menu {...{ on: { click: ({ key, item, domEvent }) => { this.closeMenuClick(key, e) } } }}>
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<a-menu-item key="closeThat">关闭当前标签</a-menu-item>
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<a-menu-item key="closeRight">关闭右侧</a-menu-item>
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<a-menu-item key="closeLeft">关闭左侧</a-menu-item>
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<a-menu-item key="closeAll">关闭全部</a-menu-item>
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</a-menu>
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)
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},
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// render
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renderTabPane (title, keyPath) {
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const menu = this.renderTabPaneMenu(keyPath)
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return (
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<a-dropdown overlay={menu} trigger={['contextmenu']}>
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<span style={{ userSelect: 'none' }}>{ title }</span>
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</a-dropdown>
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)
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}
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},
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watch: {
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'$route': function (newVal) {
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this.activeKey = newVal.fullPath
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if (this.fullPathList.indexOf(newVal.fullPath) < 0) {
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this.fullPathList.push(newVal.fullPath)
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this.pages.push(newVal)
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}
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},
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activeKey: function (newPathKey) {
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this.$router.push({ path: newPathKey })
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}
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},
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render () {
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const { onEdit, $data: { pages } } = this
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const panes = pages.map(page => {
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return (
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<a-tab-pane
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style={{ height: 0, background: '#8999ee', color: '#899ee' }}
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tab={this.renderTabPane(page.meta.customTitle || page.meta.title, page.fullPath)}
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key={page.fullPath} closable={pages.length > 1}
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>
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</a-tab-pane>)
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})
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return (
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<div class="ant-pro-multi-tab">
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<div class="ant-pro-multi-tab-wrapper">
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<a-tabs
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hideAdd
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tabBarGutter={-1}
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type={'editable-card'}
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v-model={this.activeKey}
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tabBarStyle={{ background: '#FFF', margin: 0, paddingLeft: '0px', paddingTop: '0px' }}
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{...{ on: { edit: onEdit } }}>
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{panes}
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</a-tabs>
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</div>
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</div>
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)
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}
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}
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</script>
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