103 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Vue
		
	
	
			
		
		
	
	
			103 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Vue
		
	
	
import { inject, cloneVNode } from 'vue';
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import classNames from 'classnames';
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import PropTypes from '../_util/vue-types';
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import {
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  getOptionProps,
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  getPropsData,
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  initDefaultProps,
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  filterEmpty,
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  getComponent,
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} from '../_util/props-util';
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import TimelineItem from './TimelineItem';
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import LoadingOutlined from '@ant-design/icons-vue/LoadingOutlined';
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import { ConfigConsumerProps } from '../config-provider';
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export const TimelineProps = {
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  prefixCls: PropTypes.string,
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  /** 指定最后一个幽灵节点是否存在或内容 */
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  pending: PropTypes.any,
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  pendingDot: PropTypes.string,
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  reverse: PropTypes.bool,
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  mode: PropTypes.oneOf(['left', 'alternate', 'right', '']),
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};
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export default {
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  name: 'ATimeline',
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  props: initDefaultProps(TimelineProps, {
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    reverse: false,
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    mode: '',
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  }),
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  setup() {
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    const configProvider = inject('configProvider', ConfigConsumerProps);
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    return {
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      configProvider,
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    };
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  },
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  render() {
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    const { prefixCls: customizePrefixCls, reverse, mode } = getOptionProps(this);
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    const getPrefixCls = this.configProvider.getPrefixCls;
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    const prefixCls = getPrefixCls('timeline', customizePrefixCls);
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    const pendingDot = getComponent(this, 'pendingDot');
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    const pending = getComponent(this, 'pending');
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    const pendingNode = typeof pending === 'boolean' ? null : pending;
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    const classString = classNames(prefixCls, {
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      [`${prefixCls}-pending`]: !!pending,
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      [`${prefixCls}-reverse`]: !!reverse,
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      [`${prefixCls}-${mode}`]: !!mode,
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    });
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    const children = filterEmpty(this.$slots.default && this.$slots.default());
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    // // Remove falsy items
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    // const falsylessItems = filterEmpty(this.$slots.default)
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    // const items = falsylessItems.map((item, idx) => {
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    //   return cloneElement(item, {
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    //     props: {
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    //       last: falsylessItems.length - 1 === idx,
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    //     },
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    //   })
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    // })
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    const pendingItem = pending ? (
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      <TimelineItem pending={!!pending} dot={pendingDot || <LoadingOutlined />}>
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        {pendingNode}
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      </TimelineItem>
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    ) : null;
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    const timeLineItems = reverse
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      ? [pendingItem, ...children.reverse()]
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      : [...children, pendingItem];
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    const getPositionCls = (ele, idx) => {
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      const eleProps = getPropsData(ele);
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      if (mode === 'alternate') {
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        if (eleProps.position === 'right') return `${prefixCls}-item-right`;
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        if (eleProps.position === 'left') return `${prefixCls}-item-left`;
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        return idx % 2 === 0 ? `${prefixCls}-item-left` : `${prefixCls}-item-right`;
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      }
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      if (mode === 'left') return `${prefixCls}-item-left`;
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      if (mode === 'right') return `${prefixCls}-item-right`;
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      if (eleProps.position === 'right') return `${prefixCls}-item-right`;
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      return '';
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    };
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    // Remove falsy items
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    const truthyItems = timeLineItems.filter(item => !!item);
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    const itemsCount = truthyItems.length;
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    const lastCls = `${prefixCls}-item-last`;
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    const items = truthyItems.map((ele, idx) => {
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      const pendingClass = idx === itemsCount - 2 ? lastCls : '';
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      const readyClass = idx === itemsCount - 1 ? lastCls : '';
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      return cloneVNode(ele, {
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        class: classNames([
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          !reverse && !!pending ? pendingClass : readyClass,
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          getPositionCls(ele, idx),
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        ]),
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      });
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    });
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    const timelineProps = {
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      class: classString,
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    };
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    return <ul {...timelineProps}>{items}</ul>;
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  },
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};
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