Vue3 + Element Plus 实现动态标签页及右键菜单

本文介绍: 【代码】Vue3 + Element Plus 实现动态标签页及右键菜单。

先上图

右键菜单生效后控制每个下拉项的禁用与显示(每一项代表一个功能)

每个右键项对应的功能

控制每次只显示一个右键

完整代码

先上图

只有首页的情况

多个tab页的情况

&lt;el-tabs v-model="activeTab" @tab-click="clickTab" type="border-card" class="demo-tabs" closable @edit="removeTab"&gt;
        &lt;el-tab-pane v-for="(item, index) in tabs" :key="item.path" :label="item.name" :name="item.path"&gt;
            <template #label&gt;
                <el-dropdown :trigger="['contextmenu']" ref="dropdownRef" :id="item.name"
                    @visible-change="handleChange($event, item.name)">
                    {{ item.name }}
                    <template #dropdown>
                        <el-dropdown-menu>
                            <el-dropdown-item @click="reload(item)" :disabled="handDisabled('reload', item, index)">
                                <el-icon>
                                    <Refresh />
                                </el-icon>重新刷新
                            </el-dropdown-item>
                            <el-dropdown-item v-if="item.path != '/welcome'" @click="closeMy(item)"
                                :disabled="handDisabled('closeMy', item, index)">
                                <el-icon>
                                    <Close />
                                </el-icon>关闭当前</el-dropdown-item>
                            <el-dropdown-item v-if="tabs.length > 1" @click="closeOther(item)"
                                :disabled="handDisabled('closeOther', item, index)">
                                <el-icon>
                                    <Remove />
                                </el-icon>关闭其他</el-dropdown-item>
                            <el-dropdown-item v-if="tabs.length > 1" @click="closeAll(item)"
                                :disabled="handDisabled('closeAll', item, index)">
                                <el-icon>
                                    <Minus />
                                </el-icon>关闭全部</el-dropdown-item>
                        </el-dropdown-menu>
                    </template>
                </el-dropdown>
            </template>
        </el-tab-pane>
        <!--路由占位符-->
        <router-view></router-view>
    </el-tabs>

右键 菜单生效后控制 每个 下拉项的禁用与显示(每一项代表一个功能)

const handDisabled = (action: string, data: any, index: any) => {
    if (action == 'reload') {
        return route.path != data.path
    }
    if (action == 'closeMy') {
        return route.path != data.path
    }
    if (action == 'closeOther') {
        return route.path != data.path
    }
    return false
}

每个右键项对应的功能

const reload = (item: any) => {
    router.go(0)
}

const closeMy = (item: any) => {
    removeTab(item.path)
}
const closeOther = (item: any) => {
    const welcome = { name: "欢迎界面", path: "/welcome" }
    console.info(item)
    tabsSt.setTabs([welcome])
    const { name, path } = item
    let oldTabs: any = []
    tabs.value.forEach((element: any) => {
        oldTabs.push(element.path)
    });
    if (!oldTabs.includes(path)) {
        tabs.value.push({ name: name as any, path })
    }
}

const closeAll = (item: any) => {
    const welcome = { name: "欢迎界面", path: "/welcome", }
    tabsSt.setTabs([welcome])
    router.push('/welcome')
}

控制每次只显示一个右键

const dropdownRef = ref()
const handleChange = (visible: boolean, name: string) => {
    if (!visible) return
    dropdownRef.value.forEach((item: { id: string; handleClose: () => void }) => {
        if (item.id === name) return
        item.handleClose()
    })
}

完整代码

<template>
    <el-tabs v-model="activeTab" @tab-click="clickTab" type="border-card" class="demo-tabs" closable @edit="removeTab">
        <el-tab-pane v-for="(item, index) in tabs" :key="item.path" :label="item.name" :name="item.path">
            <template #label>
                <el-dropdown :trigger="['contextmenu']" ref="dropdownRef" :id="item.name"
                    @visible-change="handleChange($event, item.name)">
                    {{ item.name }}
                    <template #dropdown>
                        <el-dropdown-menu>
                            <el-dropdown-item @click="reload(item)" :disabled="handDisabled('reload', item, index)">
                                <el-icon>
                                    <Refresh />
                                </el-icon>重新刷新
                            </el-dropdown-item>
                            <el-dropdown-item v-if="item.path != '/welcome'" @click="closeMy(item)"
                                :disabled="handDisabled('closeMy', item, index)">
                                <el-icon>
                                    <Close />
                                </el-icon>关闭当前</el-dropdown-item>
                            <el-dropdown-item v-if="tabs.length > 1" @click="closeOther(item)"
                                :disabled="handDisabled('closeOther', item, index)">
                                <el-icon>
                                    <Remove />
                                </el-icon>关闭其他</el-dropdown-item>
                            <el-dropdown-item v-if="tabs.length > 1" @click="closeAll(item)"
                                :disabled="handDisabled('closeAll', item, index)">
                                <el-icon>
                                    <Minus />
                                </el-icon>关闭全部</el-dropdown-item>
                        </el-dropdown-menu>
                    </template>
                </el-dropdown>
            </template>
        </el-tab-pane>
        <!--路由占位符-->
        <router-view></router-view>
    </el-tabs>
</template>

<script lang="ts" setup true>
import { tabsStore } from '@/pinia/tabs';

import { homeStore } from '@/pinia/home';

import { useRoute, useRouter } from 'vue-router';

import { computed, onMounted, reactive, ref, toRef, watch } from 'vue';
import { Close, Minus, Refresh } from '@element-plus/icons-vue';

const router = useRouter();
const route = useRoute();
const tabsSt = tabsStore();
const { active, menus } = homeStore();


//tabs默认选项卡
const activeTab = ref(active)


const tabs = computed(() => {
    console.info("....初始化tabs")
    if (tabsSt.getTabs.length == 1) {
        const welcome = { name: "欢迎界面", path: "/welcome", }
        tabsSt.setTabs([welcome])
    }
    return tabsSt.getTabs
})

//设置tabs选项卡
const setActive = () => {
    activeTab.value = route.path;
}

const removeTab = (targetName: any) => {
    if (targetName === '/welcome') {
        return
    }
    const tablist = tabs.value
    let activeName = activeTab.value;
    if (activeName === targetName) {
        tablist.forEach((tab: any, index: any) => {
            if (tab.path === targetName) {
                const nextTab = tablist[index + 1] || tablist[index - 1]
                if (nextTab) {
                    activeName = nextTab.path
                }
            }
        })
    }
    activeTab.value = activeName
    tabsSt.setTabs(tablist.filter((tab: any) => tab.path !== targetName))
    router.push({ path: activeName })
}

const clickTab = (tab: any) => {
    const { props } = tab
    router.push({ path: props.name })
}

const reload = (item: any) => {
    router.go(0)
}

const closeMy = (item: any) => {
    removeTab(item.path)
}
const closeOther = (item: any) => {
    const welcome = { name: "欢迎界面", path: "/welcome" }
    console.info(item)
    tabsSt.setTabs([welcome])
    const { name, path } = item
    let oldTabs: any = []
    tabs.value.forEach((element: any) => {
        oldTabs.push(element.path)
    });
    if (!oldTabs.includes(path)) {
        tabs.value.push({ name: name as any, path })
    }
}

const closeAll = (item: any) => {
    const welcome = { name: "欢迎界面", path: "/welcome", }
    tabsSt.setTabs([welcome])
    router.push('/welcome')
}


const dropdownRef = ref()
const handleChange = (visible: boolean, name: string) => {
    if (!visible) return
    dropdownRef.value.forEach((item: { id: string; handleClose: () => void }) => {
        if (item.id === name) return
        item.handleClose()
    })
}

const handDisabled = (action: string, data: any, index: any) => {
    if (action == 'reload') {
        return route.path != data.path
    }
    if (action == 'closeMy') {
        return route.path != data.path
    }
    if (action == 'closeOther') {
        return route.path != data.path
    }
    return false
}



const addTab = () => {
    const { name, path } = route
    let oldTabs: any = []
    tabs.value.forEach((element: any) => {
        oldTabs.push(element.path)
    });

    if (!oldTabs.includes(path)) {
        tabs.value.push({ name: name as any, path })
    }
}

watch(() => route.path, () => {
    setActive();
    addTab();
})

//vuex刷新数据丢失
// const beforeRefresh = () => {
//     window.addEventListener('beforeunload', () => {
//         sessionStorage.setItem("tabsView", JSON.stringify(tabsSt.getTabs))
//     })
//     let tabSession = sessionStorage.getItem("tabsView")
//     if (tabSession) {
//         let oldTabs = JSON.parse(tabSession);
//         if (oldTabs.length > 0) {
//             tabsSt.setTabs(oldTabs)
//         }
//     }
// }
const beforeRefresh = () => {
    window.addEventListener('beforeunload', () => {
        console.info("beforeunload...")
    })
}

onMounted(() => {
    beforeRefresh();
    setActive();
})

</script>

<style lang="scss">
.demo-tabs {
    // min-height: 100vh;
    border: none;
    border-radius: 5px;
}

.el-tabs--border-card>.el-tabs__content {
    padding: 10px;
}

.el-tabs__item {
    font-size: 8px;
    font-weight: 1;
    padding: 0 8px;
}
</style>