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ant-design-vue/components/timeline/Timeline.jsx

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