重构水平导航菜单组件,采用 setup 语法糖并修复滚动条引用
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WUSIJIAN
@@ -1,6 +1,6 @@
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<template>
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<div class="el-menu-horizontal-warp">
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<el-scrollbar @wheel.native.prevent="onElMenuHorizontalScroll" ref="elMenuHorizontalScrollRef">
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<el-scrollbar @wheel.prevent="onElMenuHorizontalScroll" ref="elMenuHorizontalScrollRef">
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<el-menu router :default-active="defaultActive" :ellipsis="false" background-color="transparent" mode="horizontal">
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<template v-for="val in menuLists">
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<el-sub-menu :index="val.path" v-if="val.children && val.children.length > 0" :key="val.path">
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@@ -31,109 +31,117 @@
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</template>
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<script lang="ts">
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import { toRefs, reactive, computed, defineComponent, getCurrentInstance, onMounted, nextTick, onBeforeMount } from 'vue';
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export default {
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name: 'navMenuHorizontal',
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};
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</script>
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<script setup lang="ts">
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import { toRefs, reactive, computed, getCurrentInstance, onMounted, nextTick, onBeforeMount, ref } from 'vue';
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import { useRoute, onBeforeRouteUpdate } from 'vue-router';
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import { storeToRefs } from 'pinia';
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import { useRoutesList } from '/@/stores/routesList';
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import { useThemeConfig } from '/@/stores/themeConfig';
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import SubItem from '/@/layout/navMenu/subItem.vue';
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export default defineComponent({
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name: 'navMenuHorizontal',
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components: { SubItem },
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props: {
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menuList: {
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type: Array,
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default: () => [],
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},
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},
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setup(props) {
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const { proxy } = <any>getCurrentInstance();
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const stores = useRoutesList();
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const storesThemeConfig = useThemeConfig();
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const { routesList } = storeToRefs(stores);
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const { themeConfig } = storeToRefs(storesThemeConfig);
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const route = useRoute();
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const state = reactive({
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defaultActive: null,
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});
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// 获取父级菜单数据
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const menuLists = computed(() => {
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return <any>props.menuList;
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});
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// 设置横向滚动条可以鼠标滚轮滚动
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const onElMenuHorizontalScroll = (e: any) => {
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const eventDelta = e.wheelDelta || -e.deltaY * 40;
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proxy.$refs.elMenuHorizontalScrollRef.$refs.wrap$.scrollLeft = proxy.$refs.elMenuHorizontalScrollRef.$refs.wrap$.scrollLeft + eventDelta / 4;
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};
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// 初始化数据，页面刷新时，滚动条滚动到对应位置
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const initElMenuOffsetLeft = () => {
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nextTick(() => {
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let els: any = document.querySelector('.el-menu.el-menu--horizontal li.is-active');
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if (!els) return false;
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proxy.$refs.elMenuHorizontalScrollRef.$refs.wrap$.scrollLeft = els.offsetLeft;
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});
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};
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// 路由过滤递归函数
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const filterRoutesFun = (arr: Array<string>) => {
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return arr
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.filter((item: any) => !item.meta.isHide)
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.map((item: any) => {
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item = Object.assign({}, item);
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if (item.children) item.children = filterRoutesFun(item.children);
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return item;
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});
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};
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// 传送当前子级数据到菜单中
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const setSendClassicChildren = (path: string) => {
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const currentPathSplit = path.split('/');
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let currentData: any = {};
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filterRoutesFun(routesList.value).map((v, k) => {
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if (v.path === `/${currentPathSplit[1]}`) {
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v['k'] = k;
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currentData['item'] = [{ ...v }];
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currentData['children'] = [{ ...v }];
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if (v.children) currentData['children'] = v.children;
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}
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});
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return currentData;
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};
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// 设置页面当前路由高亮
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const setCurrentRouterHighlight = (currentRoute: any) => {
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const { path, meta } = currentRoute;
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if (themeConfig.value.layout === 'classic') {
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(<any>state.defaultActive) = `/${path.split('/')[1]}`;
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} else {
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const pathSplit = meta.isDynamic ? meta.isDynamicPath.split('/') : path.split('/');
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if (pathSplit.length >= 4 && meta.isHide) state.defaultActive = pathSplit.splice(0, 3).join('/');
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else state.defaultActive = path;
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}
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};
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// 页面加载前
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onBeforeMount(() => {
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setCurrentRouterHighlight(route);
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});
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// 页面加载时
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onMounted(() => {
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initElMenuOffsetLeft();
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});
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// 路由更新时
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onBeforeRouteUpdate((to) => {
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// 修复：https://gitee.com/lyt-top/vue-next-admin/issues/I3YX6G
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setCurrentRouterHighlight(to);
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// 修复经典布局开启切割菜单时，点击tagsView后左侧导航菜单数据不变的问题
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let { layout, isClassicSplitMenu } = themeConfig.value;
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if (layout === 'classic' && isClassicSplitMenu) {
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proxy.mittBus.emit('setSendClassicChildren', setSendClassicChildren(to.path));
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}
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});
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return {
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menuLists,
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onElMenuHorizontalScroll,
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...toRefs(state),
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};
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const props = defineProps({
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menuList: {
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type: Array,
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default: () => [],
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},
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});
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const { proxy } = <any>getCurrentInstance();
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const stores = useRoutesList();
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const storesThemeConfig = useThemeConfig();
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const { routesList } = storeToRefs(stores);
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const { themeConfig } = storeToRefs(storesThemeConfig);
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const route = useRoute();
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const elMenuHorizontalScrollRef = ref();
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const state = reactive({
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defaultActive: null,
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});
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// 获取父级菜单数据
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const menuLists = computed(() => {
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return <any>props.menuList;
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});
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// 设置横向滚动条可以鼠标滚轮滚动
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const onElMenuHorizontalScroll = (e: any) => {
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const eventDelta = e.wheelDelta || -e.deltaY * 40;
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elMenuHorizontalScrollRef.value.$refs.wrapRef.scrollLeft = elMenuHorizontalScrollRef.value.$refs.wrapRef.scrollLeft + eventDelta / 4;
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};
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// 初始化数据，页面刷新时，滚动条滚动到对应位置
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const initElMenuOffsetLeft = () => {
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nextTick(() => {
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let els: any = document.querySelector('.el-menu.el-menu--horizontal li.is-active');
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if (!els) return false;
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elMenuHorizontalScrollRef.value.$refs.wrapRef.scrollLeft = els.offsetLeft;
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});
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};
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// 路由过滤递归函数
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const filterRoutesFun = (arr: Array<string>) => {
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return arr
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.filter((item: any) => !item.meta.isHide)
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.map((item: any) => {
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item = Object.assign({}, item);
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if (item.children) item.children = filterRoutesFun(item.children);
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return item;
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});
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};
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// 传送当前子级数据到菜单中
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const setSendClassicChildren = (path: string) => {
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const currentPathSplit = path.split('/');
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let currentData: any = {};
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filterRoutesFun(routesList.value).map((v, k) => {
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if (v.path === `/${currentPathSplit[1]}`) {
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v['k'] = k;
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currentData['item'] = [{ ...v }];
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currentData['children'] = [{ ...v }];
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if (v.children) currentData['children'] = v.children;
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}
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});
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return currentData;
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};
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// 设置页面当前路由高亮
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const setCurrentRouterHighlight = (currentRoute: any) => {
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const { path, meta } = currentRoute;
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if (themeConfig.value.layout === 'classic') {
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(<any>state.defaultActive) = `/${path.split('/')[1]}`;
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} else {
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const pathSplit = meta.isDynamic ? meta.isDynamicPath.split('/') : path.split('/');
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if (pathSplit.length >= 4 && meta.isHide) state.defaultActive = pathSplit.splice(0, 3).join('/');
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else state.defaultActive = path;
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}
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};
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// 页面加载前
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onBeforeMount(() => {
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setCurrentRouterHighlight(route);
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});
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// 页面加载时
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onMounted(() => {
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initElMenuOffsetLeft();
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});
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// 路由更新时
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onBeforeRouteUpdate((to) => {
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// 修复：https://gitee.com/lyt-top/vue-next-admin/issues/I3YX6G
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setCurrentRouterHighlight(to);
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// 修复经典布局开启切割菜单时，点击tagsView后左侧导航菜单数据不变的问题
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let { layout, isClassicSplitMenu } = themeConfig.value;
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if (layout === 'classic' && isClassicSplitMenu) {
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proxy.mittBus.emit('setSendClassicChildren', setSendClassicChildren(to.path));
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}
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});
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const { defaultActive } = toRefs(state);
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</script>
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<style scoped lang="scss">
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