<template>
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<ul :class="getClass">
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<slot></slot>
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</ul>
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</template>
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<script lang="ts">
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import type { PropType } from 'vue';
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import type { SubMenuProvider } from './types';
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import {
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defineComponent,
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ref,
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computed,
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onMounted,
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watchEffect,
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watch,
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nextTick,
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getCurrentInstance,
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provide,
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} from 'vue';
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import { useDesign } from '/@/hooks/web/useDesign';
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import { propTypes } from '/@/utils/propTypes';
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import { createSimpleRootMenuContext } from './useSimpleMenuContext';
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import Mitt from '/@/utils/mitt';
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export default defineComponent({
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name: 'Menu',
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props: {
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theme: propTypes.oneOf(['light', 'dark']).def('light'),
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activeName: propTypes.oneOfType([propTypes.string, propTypes.number]),
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openNames: {
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type: Array as PropType<string[]>,
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default: [],
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},
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accordion: propTypes.bool.def(true),
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width: propTypes.string.def('100%'),
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collapsedWidth: propTypes.string.def('48px'),
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indentSize: propTypes.number.def(16),
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collapse: propTypes.bool.def(true),
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activeSubMenuNames: {
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type: Array as PropType<(string | number)[]>,
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default: [],
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},
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},
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emits: ['select', 'open-change'],
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setup(props, { emit }) {
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const rootMenuEmitter = new Mitt();
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const instance = getCurrentInstance();
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const currentActiveName = ref<string | number>('');
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const openedNames = ref<string[]>([]);
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const { prefixCls } = useDesign('menu');
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const isRemoveAllPopup = ref(false);
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createSimpleRootMenuContext({
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rootMenuEmitter: rootMenuEmitter,
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activeName: currentActiveName,
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});
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const getClass = computed(() => {
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const { theme } = props;
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return [
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prefixCls,
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`${prefixCls}-${theme}`,
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`${prefixCls}-vertical`,
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{
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[`${prefixCls}-collapse`]: props.collapse,
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},
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];
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});
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watchEffect(() => {
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openedNames.value = props.openNames;
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});
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watchEffect(() => {
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if (props.activeName) {
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currentActiveName.value = props.activeName;
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}
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});
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watch(
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() => props.openNames,
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() => {
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nextTick(() => {
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updateOpened();
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});
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}
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);
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function updateOpened() {
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rootMenuEmitter.emit('on-update-opened', openedNames.value);
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}
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function addSubMenu(name: string) {
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if (openedNames.value.includes(name)) return;
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openedNames.value.push(name);
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updateOpened();
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}
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function removeSubMenu(name: string) {
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openedNames.value = openedNames.value.filter((item) => item !== name);
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updateOpened();
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}
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function removeAll() {
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openedNames.value = [];
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updateOpened();
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}
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function sliceIndex(index: number) {
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if (index === -1) return;
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openedNames.value = openedNames.value.slice(0, index + 1);
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updateOpened();
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}
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provide<SubMenuProvider>(`subMenu:${instance?.uid}`, {
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addSubMenu,
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removeSubMenu,
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getOpenNames: () => openedNames.value,
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removeAll,
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isRemoveAllPopup,
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sliceIndex,
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level: 0,
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props,
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});
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onMounted(() => {
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openedNames.value = !props.collapse ? [...props.openNames] : [];
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updateOpened();
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rootMenuEmitter.on('on-menu-item-select', (name: string) => {
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currentActiveName.value = name;
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nextTick(() => {
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props.collapse && removeAll();
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});
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emit('select', name);
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});
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rootMenuEmitter.on('open-name-change', ({ name, opened }) => {
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if (opened && !openedNames.value.includes(name)) {
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openedNames.value.push(name);
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} else if (!opened) {
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const index = openedNames.value.findIndex((item) => item === name);
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index !== -1 && openedNames.value.splice(index, 1);
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}
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});
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});
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return { getClass, openedNames };
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},
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});
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</script>
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<style lang="less">
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@import './menu.less';
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</style>
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