content: import classNames from 'classnames';
  import events from 'dom-helpers/events';
  import ownerDocument from 'dom-helpers/ownerDocument';
  import canUseDOM from 'dom-helpers/util/inDOM';
  import getScrollbarSize from 'dom-helpers/util/scrollbarSize';
  import React from 'react';
  import ReactDOM from 'react-dom';
  import BaseModal from 'react-overlays/lib/Modal';
  import isOverflowing from 'react-overlays/lib/utils/isOverflowing';
  import elementType from 'react-prop-types/lib/elementType';
  
  import Fade from './Fade';
  import Body from './ModalBody';
  import ModalDialog from './ModalDialog';
  import Footer from './ModalFooter';
  import Header from './ModalHeader';
  import Title from './ModalTitle';
  import { bsClass, bsSizes, prefix } from './utils/bootstrapUtils';
  import createChainedFunction from './utils/createChainedFunction';
  import splitComponentProps from './utils/splitComponentProps';
  import { Size } from './utils/StyleConfig';
  
  const propTypes = {
    ...BaseModal.propTypes,
    ...ModalDialog.propTypes,
  
    /**
     * Include a backdrop component. Specify 'static' for a backdrop that doesn't
     * trigger an "onHide" when clicked.
     */
    backdrop: React.PropTypes.oneOf(['static', true, false]),
  
    /**
     * Close the modal when escape key is pressed
     */
    keyboard: React.PropTypes.bool,
  
    /**
     * Open and close the Modal with a slide and fade animation.
     */
    animation: React.PropTypes.bool,
  
    /**
     * A Component type that provides the modal content Markup. This is a useful
     * prop when you want to use your own styles and markup to create a custom
     * modal component.
     */
    dialogComponentClass: elementType,
  
    /**
     * When `true` The modal will automatically shift focus to itself when it
     * opens, and replace it to the last focused element when it closes.
     * Generally this should never be set to false as it makes the Modal less
     * accessible to assistive technologies, like screen-readers.
     */
    autoFocus: React.PropTypes.bool,
  
    /**
     * When `true` The modal will prevent focus from leaving the Modal while
     * open. Consider leaving the default value here, as it is necessary to make
     * the Modal work well with assistive technologies, such as screen readers.
     */
    enforceFocus: React.PropTypes.bool,
  
    /**
     * When `true` The modal will show itself.
     */
    show: React.PropTypes.bool,
  
    /**
     * A callback fired when the header closeButton or non-static backdrop is
     * clicked. Required if either are specified.
     */
    onHide: React.PropTypes.func,
  
    /**
     * Callback fired before the Modal transitions in
     */
    onEnter: React.PropTypes.func,
  
    /**
     * Callback fired as the Modal begins to transition in
     */
    onEntering: React.PropTypes.func,
  
    /**
     * Callback fired after the Modal finishes transitioning in
     */
    onEntered: React.PropTypes.func,
  
    /**
     * Callback fired right before the Modal transitions out
     */
    onExit: React.PropTypes.func,
  
    /**
     * Callback fired as the Modal begins to transition out
     */
    onExiting: React.PropTypes.func,
  
    /**
     * Callback fired after the Modal finishes transitioning out
     */
    onExited: React.PropTypes.func,
  
    /**
     * @private
     */
    container: BaseModal.propTypes.container,
  };
  
  const defaultProps = {
    ...BaseModal.defaultProps,
    animation: true,
    dialogComponentClass: ModalDialog,
  };
  
  const childContextTypes = {
    $bs_modal: React.PropTypes.shape({
      onHide: React.PropTypes.func,
    }),
  };
  
  class Modal extends React.Component {
    constructor(props, context) {
      super(props, context);
  
      this.handleEntering = this.handleEntering.bind(this);
      this.handleExited = this.handleExited.bind(this);
      this.handleWindowResize = this.handleWindowResize.bind(this);
      this.handleDialogClick = this.handleDialogClick.bind(this);
  
      this.state = {
        style: {},
      };
    }
  
    getChildContext() {
      return {
        $bs_modal: {
          onHide: this.props.onHide,
        },
      };
    }
  
    componentWillUnmount() {
      // Clean up the listener if we need to.
      this.handleExited();
    }
  
    handleEntering() {
      // FIXME: This should work even when animation is disabled.
      events.on(window, 'resize', this.handleWindowResize);
      this.updateStyle();
    }
  
    handleExited() {
      // FIXME: This should work even when animation is disabled.
      events.off(window, 'resize', this.handleWindowResize);
    }
  
    handleWindowResize() {
      this.updateStyle();
    }
  
    handleDialogClick(e) {
      if (e.target !== e.currentTarget) {
        return;
      }
  
      this.props.onHide();
    }
  
    updateStyle() {
      if (!canUseDOM) {
        return;
      }
  
      const dialogNode = this._modal.getDialogElement();
      const dialogHeight = dialogNode.scrollHeight;
  
      const document = ownerDocument(dialogNode);
      const bodyIsOverflowing = isOverflowing(
        ReactDOM.findDOMNode(this.props.container || document.body)
      );
      const modalIsOverflowing =
        dialogHeight > document.documentElement.clientHeight;
  
      this.setState({
        style: {
          paddingRight: bodyIsOverflowing && !modalIsOverflowing ?
            getScrollbarSize() : undefined,
          paddingLeft: !bodyIsOverflowing && modalIsOverflowing ?
            getScrollbarSize() : undefined
        }
      });
    }
  
    render() {
      const {
        backdrop,
        animation,
        show,
        dialogComponentClass: Dialog,
        className,
        style,
        children, // Just in case this get added to BaseModal propTypes.
        onEntering,
        onExited,
        ...props
      } = this.props;
  
      const [baseModalProps, dialogProps] =
        splitComponentProps(props, BaseModal);
  
      const inClassName = show && !animation && 'in';
  
      return (
        <BaseModal
          {...baseModalProps}
          ref={c => { this._modal = c; }}
          show={show}
          onEntering={createChainedFunction(onEntering, this.handleEntering)}
          onExited={createChainedFunction(onExited, this.handleExited)}
          backdrop={backdrop}
          backdropClassName={classNames(prefix(props, 'backdrop'), inClassName)}
          containerClassName={prefix(props, 'open')}
          transition={animation ? Fade : undefined}
          dialogTransitionTimeout={Modal.TRANSITION_DURATION}
          backdropTransitionTimeout={Modal.BACKDROP_TRANSITION_DURATION}
        >
          <Dialog
            {...dialogProps}
            style={{ ...this.state.style, ...style }}
            className={classNames(className, inClassName)}
            onClick={backdrop === true ? this.handleDialogClick : null}
          >
            {children}
          </Dialog>
        </BaseModal>
      );
    }
  }
  
  Modal.propTypes = propTypes;
  Modal.defaultProps = defaultProps;
  Modal.childContextTypes = childContextTypes;
  
  Modal.Body = Body;
  Modal.Header = Header;
  Modal.Title = Title;
  Modal.Footer = Footer;
  
  Modal.Dialog = ModalDialog;
  
  Modal.TRANSITION_DURATION = 300;
  Modal.BACKDROP_TRANSITION_DURATION = 150;
  
  export default bsClass('modal',
    bsSizes([Size.LARGE, Size.SMALL], Modal)
  );
  