text: import _extends from "@babel/runtime/helpers/esm/extends";
  import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
  import * as React from 'react';
  import { isFragment } from 'react-is';
  import PropTypes from 'prop-types';
  import clsx from 'clsx';
  import { duration, withStyles } from '@material-ui/core/styles';
  import Zoom from '@material-ui/core/Zoom';
  import Fab from '@material-ui/core/Fab';
  import { capitalize, isMuiElement, useForkRef } from '@material-ui/core/utils';
  
  function getOrientation(direction) {
    if (direction === 'up' || direction === 'down') {
      return 'vertical';
    }
  
    if (direction === 'right' || direction === 'left') {
      return 'horizontal';
    }
  
    return undefined;
  }
  
  function clamp(value, min, max) {
    if (value < min) {
      return min;
    }
  
    if (value > max) {
      return max;
    }
  
    return value;
  }
  
  const dialRadius = 32;
  const spacingActions = 16;
  export const styles = theme => ({
    /* Styles applied to the root element. */
    root: {
      zIndex: theme.zIndex.speedDial,
      display: 'flex',
      alignItems: 'center',
      pointerEvents: 'none'
    },
  
    /* Styles applied to the Fab component. */
    fab: {
      pointerEvents: 'auto'
    },
  
    /* Styles applied to the root if direction="up" */
    directionUp: {
      flexDirection: 'column-reverse',
      '& $actions': {
        flexDirection: 'column-reverse',
        marginBottom: -dialRadius,
        paddingBottom: spacingActions + dialRadius
      }
    },
  
    /* Styles applied to the root if direction="down" */
    directionDown: {
      flexDirection: 'column',
      '& $actions': {
        flexDirection: 'column',
        marginTop: -dialRadius,
        paddingTop: spacingActions + dialRadius
      }
    },
  
    /* Styles applied to the root if direction="left" */
    directionLeft: {
      flexDirection: 'row-reverse',
      '& $actions': {
        flexDirection: 'row-reverse',
        marginRight: -dialRadius,
        paddingRight: spacingActions + dialRadius
      }
    },
  
    /* Styles applied to the root if direction="right" */
    directionRight: {
      flexDirection: 'row',
      '& $actions': {
        flexDirection: 'row',
        marginLeft: -dialRadius,
        paddingLeft: spacingActions + dialRadius
      }
    },
  
    /* Styles applied to the actions (`children` wrapper) element. */
    actions: {
      display: 'flex',
      pointerEvents: 'auto'
    },
  
    /* Styles applied to the actions (`children` wrapper) element if `open={false}`. */
    actionsClosed: {
      transition: 'top 0s linear 0.2s',
      pointerEvents: 'none'
    }
  });
  const SpeedDial = React.forwardRef(function SpeedDial(props, ref) {
    const {
      ariaLabel,
      FabProps: {
        ref: origDialButtonRef
      } = {},
      children: childrenProp,
      classes,
      className,
      direction = 'up',
      hidden = false,
      icon,
      onBlur,
      onClose,
      onFocus,
      onKeyDown,
      onMouseEnter,
      onMouseLeave,
      onOpen,
      open,
      TransitionComponent = Zoom,
      transitionDuration = {
        enter: duration.enteringScreen,
        exit: duration.leavingScreen
      },
      TransitionProps
    } = props,
          FabProps = _objectWithoutPropertiesLoose(props.FabProps, ["ref"]),
          other = _objectWithoutPropertiesLoose(props, ["ariaLabel", "FabProps", "children", "classes", "className", "direction", "hidden", "icon", "onBlur", "onClose", "onFocus", "onKeyDown", "onMouseEnter", "onMouseLeave", "onOpen", "open", "openIcon", "TransitionComponent", "transitionDuration", "TransitionProps"]);
  
    const eventTimer = React.useRef();
    React.useEffect(() => {
      return () => {
        clearTimeout(eventTimer.current);
      };
    }, []);
    /**
     * an index in actions.current
     */
  
    const focusedAction = React.useRef(0);
    /**
     * pressing this key while the focus is on a child SpeedDialAction focuses
     * the next SpeedDialAction.
     * It is equal to the first arrow key pressed while focus is on the SpeedDial
     * that is not orthogonal to the direction.
     * @type {utils.ArrowKey?}
     */
  
    const nextItemArrowKey = React.useRef();
    /**
     * refs to the Button that have an action associated to them in this SpeedDial
     * [Fab, ...(SpeedDialActions > Button)]
     * @type {HTMLButtonElement[]}
     */
  
    const actions = React.useRef([]);
    actions.current = [actions.current[0]];
    const handleOwnFabRef = React.useCallback(fabFef => {
      actions.current[0] = fabFef;
    }, []);
    const handleFabRef = useForkRef(origDialButtonRef, handleOwnFabRef);
    /**
     * creates a ref callback for the Button in a SpeedDialAction
     * Is called before the original ref callback for Button that was set in buttonProps
     *
     * @param dialActionIndex {number}
     * @param origButtonRef {React.RefObject?}
     */
  
    const createHandleSpeedDialActionButtonRef = (dialActionIndex, origButtonRef) => {
      return buttonRef => {
        actions.current[dialActionIndex + 1] = buttonRef;
  
        if (origButtonRef) {
          origButtonRef(buttonRef);
        }
      };
    };
  
    const handleKeyDown = event => {
      if (onKeyDown) {
        onKeyDown(event);
      }
  
      const key = event.key.replace('Arrow', '').toLowerCase();
      const {
        current: nextItemArrowKeyCurrent = key
      } = nextItemArrowKey;
  
      if (event.key === 'Escape') {
        if (onClose) {
          actions.current[0].focus();
          onClose(event, 'escapeKeyDown');
        }
  
        return;
      }
  
      if (getOrientation(key) === getOrientation(nextItemArrowKeyCurrent) && getOrientation(key) !== undefined) {
        event.preventDefault();
        const actionStep = key === nextItemArrowKeyCurrent ? 1 : -1; // stay within array indices
  
        const nextAction = clamp(focusedAction.current + actionStep, 0, actions.current.length - 1);
        actions.current[nextAction].focus();
        focusedAction.current = nextAction;
        nextItemArrowKey.current = nextItemArrowKeyCurrent;
      }
    };
  
    React.useEffect(() => {
      // actions were closed while navigation state was not reset
      if (!open) {
        focusedAction.current = 0;
        nextItemArrowKey.current = undefined;
      }
    }, [open]);
  
    const handleClose = event => {
      if (event.type === 'mouseleave' && onMouseLeave) {
        onMouseLeave(event);
      }
  
      if (event.type === 'blur' && onBlur) {
        onBlur(event);
      }
  
      clearTimeout(eventTimer.current);
  
      if (onClose) {
        if (event.type === 'blur') {
          event.persist();
          eventTimer.current = setTimeout(() => {
            onClose(event, 'blur');
          });
        } else {
          onClose(event, 'mouseLeave');
        }
      }
    };
  
    const handleClick = event => {
      if (FabProps.onClick) {
        FabProps.onClick(event);
      }
  
      clearTimeout(eventTimer.current);
  
      if (open) {
        if (onClose) {
          onClose(event, 'toggle');
        }
      } else if (onOpen) {
        onOpen(event, 'toggle');
      }
    };
  
    const handleOpen = event => {
      if (event.type === 'mouseenter' && onMouseEnter) {
        onMouseEnter(event);
      }
  
      if (event.type === 'focus' && onFocus) {
        onFocus(event);
      } // When moving the focus between two items,
      // a chain if blur and focus event is triggered.
      // We only handle the last event.
  
  
      clearTimeout(eventTimer.current);
  
      if (onOpen && !open) {
        event.persist(); // Wait for a future focus or click event
  
        eventTimer.current = setTimeout(() => {
          const eventMap = {
            focus: 'focus',
            mouseenter: 'mouseEnter'
          };
          onOpen(event, eventMap[event.type]);
        });
      }
    }; // Filter the label for valid id characters.
  
  
    const id = ariaLabel.replace(/^[^a-z]+|[^\w:.-]+/gi, '');
    const allItems = React.Children.toArray(childrenProp).filter(child => {
      if (process.env.NODE_ENV !== 'production') {
        if (isFragment(child)) {
          console.error(["Material-UI: the SpeedDial component doesn't accept a Fragment as a child.", 'Consider providing an array instead.'].join('\n'));
        }
      }
  
      return React.isValidElement(child);
    });
    const children = allItems.map((child, index) => {
      const {
        FabProps: {
          ref: origButtonRef
        } = {}
      } = child.props,
            ChildFabProps = _objectWithoutPropertiesLoose(child.props.FabProps, ["ref"]);
  
      return React.cloneElement(child, {
        FabProps: _extends({}, ChildFabProps, {
          ref: createHandleSpeedDialActionButtonRef(index, origButtonRef)
        }),
        delay: 30 * (open ? index : allItems.length - index),
        open,
        id: `${id}-action-${index}`
      });
    });
    return /*#__PURE__*/React.createElement("div", _extends({
      className: clsx(classes.root, classes[`direction${capitalize(direction)}`], className),
      ref: ref,
      role: "presentation",
      onKeyDown: handleKeyDown,
      onBlur: handleClose,
      onFocus: handleOpen,
      onMouseEnter: handleOpen,
      onMouseLeave: handleClose
    }, other), /*#__PURE__*/React.createElement(TransitionComponent, _extends({
      in: !hidden,
      timeout: transitionDuration,
      unmountOnExit: true
    }, TransitionProps), /*#__PURE__*/React.createElement(Fab, _extends({
      color: "primary",
      "aria-label": ariaLabel,
      "aria-haspopup": "true",
      "aria-expanded": open,
      "aria-controls": `${id}-actions`
    }, FabProps, {
      onClick: handleClick,
      className: clsx(classes.fab, FabProps.className),
      ref: handleFabRef
    }), React.isValidElement(icon) && isMuiElement(icon, ['SpeedDialIcon']) ? React.cloneElement(icon, {
      open
    }) : icon)), /*#__PURE__*/React.createElement("div", {
      id: `${id}-actions`,
      role: "menu",
      "aria-orientation": getOrientation(direction),
      className: clsx(classes.actions, !open && classes.actionsClosed)
    }, children));
  });
  process.env.NODE_ENV !== "production" ? SpeedDial.propTypes = {
    // ----------------------------- Warning --------------------------------
    // | These PropTypes are generated from the TypeScript type definitions |
    // |     To update them edit the d.ts file and run "yarn proptypes"     |
    // ----------------------------------------------------------------------
  
    /**
     * The aria-label of the button element.
     * Also used to provide the `id` for the `SpeedDial` element and its children.
     */
    ariaLabel: PropTypes.string.isRequired,
  
    /**
     * SpeedDialActions to display when the SpeedDial is `open`.
     */
    children: PropTypes.node,
  
    /**
     * Override or extend the styles applied to the component.
     * See [CSS API](#css) below for more details.
     */
    classes: PropTypes.object,
  
    /**
     * @ignore
     */
    className: PropTypes.string,
  
    /**
     * The direction the actions open relative to the floating action button.
     */
    direction: PropTypes.oneOf(['down', 'left', 'right', 'up']),
  
    /**
     * Props applied to the [`Fab`](/api/fab/) element.
     */
    FabProps: PropTypes.object,
  
    /**
     * If `true`, the SpeedDial will be hidden.
     */
    hidden: PropTypes.bool,
  
    /**
     * The icon to display in the SpeedDial Fab. The `SpeedDialIcon` component
     * provides a default Icon with animation.
     */
    icon: PropTypes.node,
  
    /**
     * @ignore
     */
    onBlur: PropTypes.func,
  
    /**
     * Callback fired when the component requests to be closed.
     *
     * @param {object} event The event source of the callback.
     * @param {string} reason Can be: `"toggle"`, `"blur"`, `"mouseLeave"`, `"escapeKeyDown"`.
     */
    onClose: PropTypes.func,
  
    /**
     * @ignore
     */
    onFocus: PropTypes.func,
  
    /**
     * @ignore
     */
    onKeyDown: PropTypes.func,
  
    /**
     * @ignore
     */
    onMouseEnter: PropTypes.func,
  
    /**
     * @ignore
     */
    onMouseLeave: PropTypes.func,
  
    /**
     * Callback fired when the component requests to be open.
     *
     * @param {object} event The event source of the callback.
     * @param {string} reason Can be: `"toggle"`, `"focus"`, `"mouseEnter"`.
     */
    onOpen: PropTypes.func,
  
    /**
     * If `true`, the SpeedDial is open.
     */
    open: PropTypes.bool.isRequired,
  
    /**
     * The icon to display in the SpeedDial Fab when the SpeedDial is open.
     */
    openIcon: PropTypes.node,
  
    /**
     * The component used for the transition.
     * [Follow this guide](/components/transitions/#transitioncomponent-prop) to learn more about the requirements for this component.
     */
    TransitionComponent: PropTypes.elementType,
  
    /**
     * The duration for the transition, in milliseconds.
     * You may specify a single timeout for all transitions, or individually with an object.
     */
    transitionDuration: PropTypes.oneOfType([PropTypes.number, PropTypes.shape({
      appear: PropTypes.number,
      enter: PropTypes.number,
      exit: PropTypes.number
    })]),
  
    /**
     * Props applied to the [`Transition`](http://reactcommunity.org/react-transition-group/transition#Transition-props) element.
     */
    TransitionProps: PropTypes.object
  } : void 0;
  export default withStyles(styles, {
    name: 'MuiSpeedDial'
  })(SpeedDial);