react-widgets-up/esm/SlideDownTransition.js

An à la carte set of polished, extensible, and accessible inputs built for React

const _excluded = ["children", "className", "dropUp"];
function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
function _objectWithoutPropertiesLoose(r, e) { if (null == r) return {}; var t = {}; for (var n in r) if ({}.hasOwnProperty.call(r, n)) { if (-1 !== e.indexOf(n)) continue; t[n] = r[n]; } return t; }
import cn from 'classnames';
import css from 'dom-helpers/css';
import getHeight from 'dom-helpers/height';
import transitionEnd from 'dom-helpers/transitionEnd';
import * as React from 'react';
import { Transition } from './Transition';
const transitionClasses = {
  "entering": 'rw-slide-transition-entering',
  "exiting": 'rw-slide-transition-exiting',
  "exited": 'rw-slide-transition-exited'
};
class SlideDownTransition extends React.Component {
  constructor(...args) {
    super(...args);
    this.nodeRef = /*#__PURE__*/React.createRef();
    this.setContainerHeight = () => {
      this.nodeRef.current.style.height = this.getHeight(this.nodeRef.current) + 'px';
    };
    this.clearContainerHeight = elem => {
      elem.style.height = '';
    };
    this.handleEntered = () => {
      this.clearContainerHeight(this.nodeRef.current);
      if (this.props.onEntered) this.props.onEntered();
    };
    this.handleEntering = () => {
      if (this.props.onEntering) this.props.onEntering();
    };
    this.handleExit = () => {
      this.setContainerHeight();
      if (this.props.onExit) this.props.onExit();
    };
    this.handleExited = () => {
      this.clearContainerHeight(this.nodeRef.current);
      if (this.props.onExited) this.props.onExited();
    };
    this.handleTransitionEnd = (_, done) => {
      transitionEnd(this.nodeRef.current.firstChild, done);
    };
  }
  getHeight(container) {
    let content = container.firstChild;
    let margin = parseInt(css(content, 'margin-top'), 10) + parseInt(css(content, 'margin-bottom'), 10);
    let old = container.style.display;
    let height;
    container.style.display = 'block';
    height = (getHeight(content) || 0) + (isNaN(margin) ? 0 : margin);
    container.style.display = old;
    return height;
  }
  render() {
    const _this$props = this.props,
      {
        children,
        className,
        dropUp
      } = _this$props,
      props = _objectWithoutPropertiesLoose(_this$props, _excluded);
    return /*#__PURE__*/React.createElement(Transition, {
      appear: true,
      in: this.props.in,
      nodeRef: this.nodeRef,
      onEnter: this.setContainerHeight,
      onEntering: this.handleEntering,
      onEntered: this.handleEntered,
      onExit: this.handleExit,
      onExited: this.handleExited,
      addEndListener: this.handleTransitionEnd,
      timeout: undefined /*hack*/
    }, status => /*#__PURE__*/React.createElement("div", _extends({}, props, {
      ref: this.nodeRef,
      className: cn(className, dropUp && 'rw-dropup', transitionClasses[status])
    }), /*#__PURE__*/React.cloneElement(children, {
      className: cn('rw-slide-transition', children.props.className)
    })));
  }
}
export default SlideDownTransition;