<template>
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<view class="nut-menu-item" v-show="state.showWrapper" :style="style">
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<view
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v-show="state.showPopup"
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@click="handleClickOutside"
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class="nut-menu-item-placeholder-element"
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:style="placeholderElementStyle"
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:catch-move="parent.props.lockScroll"
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>
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</view>
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<nut-popup
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:style="{ position: 'absolute' }"
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:overlayStyle="{ position: 'absolute' }"
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v-bind="$attrs"
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v-model:visible="state.showPopup"
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:position="parent.props.direction === 'down' ? 'top' : 'bottom'"
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:duration="parent.props.duration"
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:destroy-on-close="false"
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:overlay="parent.props.overlay"
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:lockScroll="parent.props.lockScroll"
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@closed="handleClose"
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:close-on-click-overlay="parent.props.closeOnClickOverlay"
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>
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<scroll-view :scroll-y="true">
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<view class="nut-menu-item__content" :class="{ noPadding: !options?.length }">
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<view
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v-for="(option, index) in options"
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:key="index"
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class="nut-menu-item__option"
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:class="[{ active: optionIsActive(option) }]"
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:style="{ 'flex-basis': 100 / cols + '%' }"
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@click="onClick(option)"
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>
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<span
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class="nut-menu-item__span"
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v-if="optionIsActive(option)"
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:class="[optionIsActive(option) ? activeTitleClass : inactiveTitleClass]"
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>
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<slot name="icon">
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<Check v-bind="$attrs" :color="parent.props.activeColor"></Check>
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</slot>
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</span>
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<view
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:class="[optionIsActive(option) ? activeTitleClass : inactiveTitleClass]"
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:style="{ color: optionIsActive(option) ? parent.props.activeColor : '' }"
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>{{ option.text }}</view
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>
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</view>
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</view>
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<slot></slot>
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</scroll-view>
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</nut-popup>
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</view>
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</template>
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<script lang="ts">
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import { MenuItemOption } from '@nutui/nutui-taro/dist/types/__VUE/menuitem/type';
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import { Check } from '@nutui/icons-vue-taro';
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import { isArray } from 'lodash';
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export default defineComponent({
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name: 'bl-menu-item',
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props: {
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title: String,
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options: {
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type: Array as PropType<MenuItemOption[]>,
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default: () => [] as MenuItemOption[],
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},
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disabled: {
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type: Boolean,
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default: false,
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},
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modelValue: {
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type: [Array, String, Number],
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},
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cols: {
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type: Number,
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default: 1,
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},
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activeTitleClass: String,
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inactiveTitleClass: String,
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emptyValue: {
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type: [String, Number],
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default: null,
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},
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emptyTitle: {
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type: String,
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default: '',
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},
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enableCancelSelect: {
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type: Boolean,
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default: true,
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},
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multiple: {
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type: Boolean,
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default: false,
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},
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},
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components: {
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Check,
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},
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emits: ['update:modelValue', 'change', 'closePopup'],
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setup(props, { emit }) {
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const state = reactive({
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showPopup: false,
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showWrapper: false,
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});
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const useParent: any = () => {
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const parent = inject('menuParent', null);
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if (parent) {
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// 获取子组件自己的实例
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const instance = getCurrentInstance()!;
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const { link, removeLink } = parent;
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// @ts-ignore
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link(instance);
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onUnmounted(() => {
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// @ts-ignore
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removeLink(instance);
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});
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return { parent };
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}
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};
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const { parent } = useParent();
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const style = computed(() => {
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return parent.props.direction === 'down'
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? { top: parent.offset.value + 'px', zIndex: 222222222 }
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: { bottom: parent.offset.value + 'px' };
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});
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const placeholderElementStyle = computed(() => {
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const heightStyle = { height: parent.offset.value + 'px' };
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if (parent.props.direction === 'down') {
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return { ...heightStyle, top: '0px' };
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} else {
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return { ...heightStyle, bottom: '0px' };
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}
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});
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const toggle = (show = !state.showPopup) => {
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if (show === state.showPopup) {
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return;
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}
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state.showPopup = show;
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if (show) {
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state.showWrapper = true;
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}
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};
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const renderTitle = () => {
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if (props.title) {
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return props.title;
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}
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if (isArray(props.modelValue)) {
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const selectedOptions = (props.options ?? [])
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.filter((option) => (props.modelValue as any).includes(option.value))
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.map((x) => x.text);
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return selectedOptions.length > 0 ? selectedOptions.join(',') : props.emptyTitle;
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}
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const match: any = props.options?.find((option: any) => option.value === props.modelValue);
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return match ? match.text : props.emptyTitle;
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};
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const onClick = (option: MenuItemOption) => {
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console.log(1);
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state.showPopup = false;
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if (props.multiple) {
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const modelValue = props.modelValue as Array<any>;
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const val = modelValue.includes(option.value)
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? modelValue.filter((x) => x !== option.value)
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: [...modelValue, option.text];
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console.log('val: ', val);
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emit('update:modelValue', val);
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emit('change', val);
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} else {
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if (option.value !== props.modelValue) {
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emit('update:modelValue', option.value);
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emit('change', option.value);
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} else {
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if (props.enableCancelSelect) {
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emit('update:modelValue', props.emptyValue);
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emit('change', props.emptyValue);
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}
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}
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}
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};
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const handleClose = () => {
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state.showWrapper = false;
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};
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const handleClickOutside = () => {
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state.showPopup = false;
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emit('closePopup');
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};
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function optionIsActive(option: MenuItemOption) {
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return isArray(props.modelValue)
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? props.modelValue.includes(option.value)
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: option.value === props.modelValue;
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}
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return {
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style,
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placeholderElementStyle,
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renderTitle,
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state,
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parent,
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toggle,
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onClick,
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handleClose,
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handleClickOutside,
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optionIsActive,
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};
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},
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});
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</script>
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