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https://github.com/ant-design/ant-design.git
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92 lines
2.7 KiB
JavaScript
92 lines
2.7 KiB
JavaScript
import React, { cloneElement } from 'react';
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import RcTooltip from 'rc-tooltip';
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import getPlacements from '../popover/placements';
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const placements = getPlacements({
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verticalArrowShift: 8,
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});
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export default class Tooltip extends React.Component {
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static defaultProps = {
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prefixCls: 'ant-tooltip',
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placement: 'top',
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transitionName: 'zoom-big',
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mouseEnterDelay: 0.1,
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mouseLeaveDelay: 0.1,
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}
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constructor(props) {
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super(props);
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this.state = {
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visible: false,
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};
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}
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onVisibleChange = (visible) => {
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this.setState({ visible });
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}
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getPopupDomNode() {
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return this.refs.tooltip.getPopupDomNode();
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}
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// 动态设置动画点
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onPopupAlign = (domNode, align) => {
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// 当前返回的位置
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const placement = Object.keys(placements).filter(
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key => (
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placements[key].points[0] === align.points[0] &&
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placements[key].points[1] === align.points[1]
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)
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)[0];
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if (!placement) {
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return;
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}
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// 根据当前坐标设置动画点
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const rect = domNode.getBoundingClientRect();
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const transformOrigin = {
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top: '50%',
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left: '50%',
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};
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if (placement.indexOf('top') >= 0 || placement.indexOf('Bottom') >= 0) {
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transformOrigin.top = `${rect.height - align.offset[1]}px`;
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} else if (placement.indexOf('Top') >= 0 || placement.indexOf('bottom') >= 0) {
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transformOrigin.top = `${-align.offset[1]}px`;
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}
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if (placement.indexOf('left') >= 0 || placement.indexOf('Right') >= 0) {
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transformOrigin.left = `${rect.width - align.offset[0]}px`;
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} else if (placement.indexOf('right') >= 0 || placement.indexOf('Left') >= 0) {
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transformOrigin.left = `${-align.offset[0]}px`;
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}
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domNode.style.transformOrigin = `${transformOrigin.left} ${transformOrigin.top}`;
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}
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render() {
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const { prefixCls, title, overlay, children, transitionName } = this.props;
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// Hide tooltip when there is no title
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let visible = this.state.visible;
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if (!title && !overlay) {
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visible = false;
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}
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if ('visible' in this.props) {
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visible = this.props.visible;
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}
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const openClassName = this.props.openClassName || `${prefixCls}-open`;
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const childrenCls = (children && children.props && children.props.className)
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? `${children.props.className} ${openClassName}` : openClassName;
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return (
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<RcTooltip
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transitionName={transitionName}
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builtinPlacements={placements}
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overlay={title}
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visible={visible}
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onVisibleChange={this.onVisibleChange}
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onPopupAlign={this.onPopupAlign}
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ref="tooltip"
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{...this.props}>
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{visible ? cloneElement(children, { className: childrenCls, }) : children}
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</RcTooltip>
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);
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}
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}
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