107 lines
2.8 KiB
Vue
107 lines
2.8 KiB
Vue
import {
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computed,
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CSSProperties,
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defineComponent,
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HTMLAttributes,
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onUnmounted,
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PropType,
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ref,
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} from 'vue';
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import ResizeObserver from '../vc-resize-observer';
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import classNames from '../_util/classNames';
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import { Key, VueNode } from '../_util/type';
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import PropTypes from '../_util/vue-types';
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const UNDEFINED = undefined;
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export default defineComponent({
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name: 'Item',
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props: {
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prefixCls: String,
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item: PropTypes.any,
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renderItem: Function as PropType<(item: any) => VueNode>,
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responsive: Boolean,
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itemKey: [String, Number],
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registerSize: Function as PropType<(key: Key, width: number | null) => void>,
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display: Boolean,
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order: Number,
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component: PropTypes.any,
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invalidate: Boolean,
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},
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setup(props, { slots, expose }) {
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const mergedHidden = computed(() => props.responsive && !props.display);
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const itemNodeRef = ref();
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expose({ itemNodeRef });
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// ================================ Effect ================================
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function internalRegisterSize(width: number | null) {
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props.registerSize(props.itemKey!, width);
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}
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onUnmounted(() => {
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internalRegisterSize(null);
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});
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return () => {
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const {
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prefixCls,
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invalidate,
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item,
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renderItem,
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responsive,
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registerSize,
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itemKey,
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display,
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order,
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component: Component = 'div',
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...restProps
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} = props;
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const children = slots.default?.();
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// ================================ Render ================================
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const childNode = renderItem && item !== UNDEFINED ? renderItem(item) : children;
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let overflowStyle: CSSProperties | undefined;
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if (!invalidate) {
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overflowStyle = {
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opacity: mergedHidden.value ? 0 : 1,
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height: mergedHidden.value ? 0 : UNDEFINED,
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overflowY: mergedHidden.value ? 'hidden' : UNDEFINED,
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order: responsive ? order : UNDEFINED,
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pointerEvents: mergedHidden.value ? 'none' : UNDEFINED,
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position: mergedHidden.value ? 'absolute' : UNDEFINED,
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};
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}
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const overflowProps: HTMLAttributes = {};
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if (mergedHidden.value) {
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overflowProps['aria-hidden'] = true;
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}
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let itemNode = (
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<Component
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class={classNames(!invalidate && prefixCls)}
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style={overflowStyle}
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{...overflowProps}
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{...restProps}
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ref={itemNodeRef}
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>
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{childNode}
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</Component>
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);
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// 使用 disabled 避免结构不一致 导致子组件 rerender
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return (
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<ResizeObserver
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disabled={!responsive}
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onResize={({ offsetWidth }) => {
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internalRegisterSize(offsetWidth);
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}}
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>
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{itemNode}
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</ResizeObserver>
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);
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};
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},
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});
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