| import PropTypes from 'prop-types'; |
| import React from 'react'; |
| import ReactDOM from 'react-dom'; |
| import TransitionGroup from './TransitionGroup'; |
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| class ReplaceTransition extends React.Component { |
| handleEnter = (...args) => this.handleLifecycle('onEnter', 0, args); |
| handleEntering = (...args) => this.handleLifecycle('onEntering', 0, args); |
| handleEntered = (...args) => this.handleLifecycle('onEntered', 0, args); |
|
|
| handleExit = (...args) => this.handleLifecycle('onExit', 1, args); |
| handleExiting = (...args) => this.handleLifecycle('onExiting', 1, args); |
| handleExited = (...args) => this.handleLifecycle('onExited', 1, args); |
|
|
| handleLifecycle(handler, idx, originalArgs) { |
| const { children } = this.props; |
| const child = React.Children.toArray(children)[idx]; |
|
|
| if (child.props[handler]) child.props[handler](...originalArgs); |
| if (this.props[handler]) { |
| const maybeNode = child.props.nodeRef |
| ? undefined |
| : ReactDOM.findDOMNode(this); |
|
|
| this.props[handler](maybeNode); |
| } |
| } |
|
|
| render() { |
| const { children, in: inProp, ...props } = this.props; |
| const [first, second] = React.Children.toArray(children); |
|
|
| delete props.onEnter; |
| delete props.onEntering; |
| delete props.onEntered; |
| delete props.onExit; |
| delete props.onExiting; |
| delete props.onExited; |
|
|
| return ( |
| <TransitionGroup {...props}> |
| {inProp |
| ? React.cloneElement(first, { |
| key: 'first', |
| onEnter: this.handleEnter, |
| onEntering: this.handleEntering, |
| onEntered: this.handleEntered, |
| }) |
| : React.cloneElement(second, { |
| key: 'second', |
| onEnter: this.handleExit, |
| onEntering: this.handleExiting, |
| onEntered: this.handleExited, |
| })} |
| </TransitionGroup> |
| ); |
| } |
| } |
|
|
| ReplaceTransition.propTypes = { |
| in: PropTypes.bool.isRequired, |
| children(props, propName) { |
| if (React.Children.count(props[propName]) !== 2) |
| return new Error( |
| `"${propName}" must be exactly two transition components.` |
| ); |
|
|
| return null; |
| }, |
| }; |
|
|
| export default ReplaceTransition; |
|
|
