text: import _extends from 'babel-runtime/helpers/extends';
  import _objectWithoutProperties from 'babel-runtime/helpers/objectWithoutProperties';
  import React from 'react';
  import PropTypes from 'prop-types';
  import classNames from 'classnames';
  import withStyles from '../styles/withStyles';
  import Textarea from './Textarea';
  
  // Supports determination of isControlled().
  // Controlled input accepts its current value as a prop.
  //
  // @see https://facebook.github.io/react/docs/forms.html#controlled-components
  // @param value
  // @returns {boolean} true if string (including '') or number (including zero)
  export function hasValue(value) {
    return value != null && !(Array.isArray(value) && value.length === 0);
  }
  
  // Determine if field is dirty (a.k.a. filled).
  //
  // Response determines if label is presented above field or as placeholder.
  //
  // @param obj
  // @param SSR
  // @returns {boolean} False when not present or empty string.
  //                    True when any number or string with length.
  export function isDirty(obj, SSR = false) {
    return obj && (hasValue(obj.value) && obj.value !== '' || SSR && hasValue(obj.defaultValue) && obj.defaultValue !== '');
  }
  
  // Determine if an Input is adorned on start.
  // It's corresponding to the left with LTR.
  //
  // @param obj
  // @returns {boolean} False when no adornments.
  //                    True when adorned at the start.
  export function isAdornedStart(obj) {
    return obj.startAdornment;
  }
  
  export const styles = theme => {
    const light = theme.palette.type === 'light';
    const placeholder = {
      color: 'currentColor',
      opacity: light ? 0.42 : 0.5,
      transition: theme.transitions.create('opacity', {
        duration: theme.transitions.duration.shorter
      })
    };
    const placeholderHidden = {
      opacity: 0
    };
    const placeholderVisible = {
      opacity: light ? 0.42 : 0.5
    };
    const bottomLineColor = light ? 'rgba(0, 0, 0, 0.42)' : 'rgba(255, 255, 255, 0.7)';
  
    return {
      root: {
        // Mimics the default input display property used by browsers for an input.
        display: 'inline-flex',
        position: 'relative',
        fontFamily: theme.typography.fontFamily,
        color: light ? 'rgba(0, 0, 0, 0.87)' : theme.palette.common.white,
        fontSize: theme.typography.pxToRem(16),
        lineHeight: '1.1875em' // Reset (19px), match the native input line-height
      },
      formControl: {
        'label + &': {
          marginTop: theme.spacing.unit * 2
        }
      },
      focused: {},
      disabled: {
        color: theme.palette.text.disabled
      },
      underline: {
        '&:after': {
          backgroundColor: theme.palette.primary[light ? 'dark' : 'light'],
          left: 0,
          bottom: 0,
          // Doing the other way around crash on IE11 "''" https://github.com/cssinjs/jss/issues/242
          content: '""',
          height: 2,
          position: 'absolute',
          right: 0,
          transform: 'scaleX(0)',
          transition: theme.transitions.create('transform', {
            duration: theme.transitions.duration.shorter,
            easing: theme.transitions.easing.easeOut
          }),
          pointerEvents: 'none' // Transparent to the hover style.
        },
        '&$focused:after': {
          transform: 'scaleX(1)'
        },
        '&:before': {
          backgroundColor: bottomLineColor,
          left: 0,
          bottom: 0,
          // Doing the other way around crash on IE11 "''" https://github.com/cssinjs/jss/issues/242
          content: '""',
          height: 1,
          position: 'absolute',
          right: 0,
          transition: theme.transitions.create('background-color', {
            duration: theme.transitions.duration.shorter
          }),
          pointerEvents: 'none' // Transparent to the hover style.
        },
        '&:hover:not($disabled):before': {
          backgroundColor: theme.palette.text.primary,
          height: 2
        },
        '&$disabled:before': {
          background: 'transparent',
          backgroundImage: `linear-gradient(to right, ${bottomLineColor} 33%, transparent 0%)`,
          backgroundPosition: 'left top',
          backgroundRepeat: 'repeat-x',
          backgroundSize: '5px 1px'
        }
      },
      error: {
        '&:after': {
          backgroundColor: theme.palette.error.main,
          transform: 'scaleX(1)' // error is always underlined in red
        }
      },
      multiline: {
        padding: `${theme.spacing.unit - 2}px 0 ${theme.spacing.unit - 1}px`
      },
      fullWidth: {
        width: '100%'
      },
      input: {
        font: 'inherit',
        color: 'currentColor',
        padding: `${theme.spacing.unit - 2}px 0 ${theme.spacing.unit - 1}px`,
        border: 0,
        boxSizing: 'content-box',
        verticalAlign: 'middle',
        background: 'none',
        margin: 0, // Reset for Safari
        // Remove grey highlight
        WebkitTapHighlightColor: 'transparent',
        display: 'block',
        // Make the flex item shrink with Firefox
        minWidth: 0,
        width: '100%',
        '&::-webkit-input-placeholder': placeholder,
        '&::-moz-placeholder': placeholder, // Firefox 19+
        '&:-ms-input-placeholder': placeholder, // IE 11
        '&::-ms-input-placeholder': placeholder, // Edge
        '&:focus': {
          outline: 0
        },
        // Reset Firefox invalid required input style
        '&:invalid': {
          boxShadow: 'none'
        },
        '&::-webkit-search-decoration': {
          // Remove the padding when type=search.
          '-webkit-appearance': 'none'
        },
        // Show and hide the placeholder logic
        'label[data-shrink=false] + $formControl &': {
          '&::-webkit-input-placeholder': placeholderHidden,
          '&::-moz-placeholder': placeholderHidden, // Firefox 19+
          '&:-ms-input-placeholder': placeholderHidden, // IE 11
          '&::-ms-input-placeholder': placeholderHidden, // Edge
          '&:focus::-webkit-input-placeholder': placeholderVisible,
          '&:focus::-moz-placeholder': placeholderVisible, // Firefox 19+
          '&:focus:-ms-input-placeholder': placeholderVisible, // IE 11
          '&:focus::-ms-input-placeholder': placeholderVisible // Edge
        }
      },
      inputMarginDense: {
        paddingTop: theme.spacing.unit / 2 - 1
      },
      inputDisabled: {
        opacity: 1 // Reset iOS opacity
      },
      inputMultiline: {
        resize: 'none',
        padding: 0
      },
      inputType: {
        // type="date" or type="time", etc. have specific styles we need to reset.
        height: '1.1875em' // Reset (19px), match the native input line-height
      },
      inputTypeSearch: {
        // Improve type search style.
        '-moz-appearance': 'textfield',
        '-webkit-appearance': 'textfield'
      }
    };
  };
  
  function formControlState(props, context) {
    let disabled = props.disabled;
    let error = props.error;
    let margin = props.margin;
  
    if (context && context.muiFormControl) {
      if (typeof disabled === 'undefined') {
        disabled = context.muiFormControl.disabled;
      }
  
      if (typeof error === 'undefined') {
        error = context.muiFormControl.error;
      }
  
      if (typeof margin === 'undefined') {
        margin = context.muiFormControl.margin;
      }
    }
  
    return {
      disabled,
      error,
      margin
    };
  }
  
  class Input extends React.Component {
    constructor(props, context) {
      super(props, context);
  
      this.state = {
        focused: false
      };
      this.input = null;
  
      this.handleFocus = event => {
        // Fix an bug with IE11 where the focus/blur events are triggered
        // while the input is disabled.
        if (formControlState(this.props, this.context).disabled) {
          event.stopPropagation();
          return;
        }
  
        this.setState({ focused: true });
        if (this.props.onFocus) {
          this.props.onFocus(event);
        }
      };
  
      this.handleBlur = event => {
        this.setState({ focused: false });
        if (this.props.onBlur) {
          this.props.onBlur(event);
        }
      };
  
      this.handleChange = event => {
        if (!this.isControlled) {
          this.checkDirty(this.input);
        }
  
        // Perform in the willUpdate
        if (this.props.onChange) {
          this.props.onChange(event);
        }
      };
  
      this.handleRefInput = node => {
        this.input = node;
  
        if (this.props.inputRef) {
          this.props.inputRef(node);
        } else if (this.props.inputProps && this.props.inputProps.ref) {
          this.props.inputProps.ref(node);
        }
      };
  
      this.isControlled = props.value != null;
      if (this.isControlled) {
        this.checkDirty(props);
      }
    }
  
    getChildContext() {
      // We are consuming the parent muiFormControl context.
      // We don't want a child to consume it a second time.
      return {
        muiFormControl: null
      };
    }
  
    componentDidMount() {
      if (!this.isControlled) {
        this.checkDirty(this.input);
      }
    }
  
    componentWillReceiveProps(nextProps, nextContext) {
      // The blur won't fire when the disabled state is set on a focused input.
      // We need to book keep the focused state manually.
      if (!formControlState(this.props, this.context).disabled && formControlState(nextProps, nextContext).disabled) {
        this.setState({
          focused: false
        });
      }
    }
  
    componentWillUpdate(nextProps, nextState, nextContext) {
      if (this.isControlled) {
        this.checkDirty(nextProps);
      } // else performed in the onChange
  
      // Book keep the focused state.
      if (!formControlState(this.props, this.context).disabled && formControlState(nextProps, nextContext).disabled) {
        const { muiFormControl } = this.context;
        if (muiFormControl && muiFormControl.onBlur) {
          muiFormControl.onBlur();
        }
      }
    }
  
    // Holds the input reference
  
  
    checkDirty(obj) {
      const { muiFormControl } = this.context;
  
      if (isDirty(obj)) {
        if (muiFormControl && muiFormControl.onDirty) {
          muiFormControl.onDirty();
        }
        if (this.props.onDirty) {
          this.props.onDirty();
        }
        return;
      }
  
      if (muiFormControl && muiFormControl.onClean) {
        muiFormControl.onClean();
      }
      if (this.props.onClean) {
        this.props.onClean();
      }
    }
  
    render() {
      const _props = this.props,
            {
        autoComplete,
        autoFocus,
        classes,
        className: classNameProp,
        defaultValue,
        disabled: disabledProp,
        disableUnderline,
        endAdornment,
        error: errorProp,
        fullWidth,
        id,
        inputComponent,
        inputProps: { className: inputPropsClassName } = {},
        inputRef,
        margin: marginProp,
        multiline,
        name,
        onBlur,
        onChange,
        onClean,
        onDirty,
        onFocus,
        onKeyDown,
        onKeyUp,
        placeholder,
        readOnly,
        rows,
        rowsMax,
        startAdornment,
        type,
        value
      } = _props,
            inputPropsProp = _objectWithoutProperties(_props.inputProps, ['className']),
            other = _objectWithoutProperties(_props, ['autoComplete', 'autoFocus', 'classes', 'className', 'defaultValue', 'disabled', 'disableUnderline', 'endAdornment', 'error', 'fullWidth', 'id', 'inputComponent', 'inputProps', 'inputRef', 'margin', 'multiline', 'name', 'onBlur', 'onChange', 'onClean', 'onDirty', 'onFocus', 'onKeyDown', 'onKeyUp', 'placeholder', 'readOnly', 'rows', 'rowsMax', 'startAdornment', 'type', 'value']);
  
      const { muiFormControl } = this.context;
      const { disabled, error, margin } = formControlState(this.props, this.context);
  
      const className = classNames(classes.root, {
        [classes.disabled]: disabled,
        [classes.error]: error,
        [classes.fullWidth]: fullWidth,
        [classes.focused]: this.state.focused,
        [classes.formControl]: muiFormControl,
        [classes.multiline]: multiline,
        [classes.underline]: !disableUnderline
      }, classNameProp);
  
      const inputClassName = classNames(classes.input, {
        [classes.inputDisabled]: disabled,
        [classes.inputType]: type !== 'text',
        [classes.inputTypeSearch]: type === 'search',
        [classes.inputMultiline]: multiline,
        [classes.inputMarginDense]: margin === 'dense'
      }, inputPropsClassName);
  
      const required = muiFormControl && muiFormControl.required === true;
  
      let InputComponent = 'input';
      let inputProps = _extends({}, inputPropsProp, {
        ref: this.handleRefInput
      });
  
      if (inputComponent) {
        InputComponent = inputComponent;
        inputProps = _extends({
          // Rename ref to inputRef as we don't know the
          // provided `inputComponent` structure.
          inputRef: this.handleRefInput
        }, inputProps, {
          ref: null
        });
      } else if (multiline) {
        if (rows && !rowsMax) {
          InputComponent = 'textarea';
        } else {
          inputProps = _extends({
            rowsMax,
            textareaRef: this.handleRefInput
          }, inputProps, {
            ref: null
          });
          InputComponent = Textarea;
        }
      }
  
      return React.createElement(
        'div',
        _extends({ onBlur: this.handleBlur, onFocus: this.handleFocus, className: className }, other),
        startAdornment,
        React.createElement(InputComponent, _extends({
          autoComplete: autoComplete,
          autoFocus: autoFocus,
          className: inputClassName,
          onChange: this.handleChange,
          onKeyUp: onKeyUp,
          onKeyDown: onKeyDown,
          disabled: disabled,
          required: required ? true : undefined,
          value: value,
          id: id,
          name: name,
          defaultValue: defaultValue,
          placeholder: placeholder,
          type: type,
          readOnly: readOnly,
          rows: rows,
          'aria-required': required,
          'aria-invalid': error
        }, inputProps)),
        endAdornment
      );
    }
  }
  
  Input.propTypes = process.env.NODE_ENV !== "production" ? {
    /**
     * This property helps users to fill forms faster, especially on mobile devices.
     * The name can be confusing, as it's more like an autofill.
     * You can learn more about it here:
     * https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#autofill
     */
    autoComplete: PropTypes.string,
    /**
     * If `true`, the input will be focused during the first mount.
     */
    autoFocus: PropTypes.bool,
    /**
     * Useful to extend the style applied to components.
     */
    classes: PropTypes.object.isRequired,
    /**
     * The CSS class name of the wrapper element.
     */
    className: PropTypes.string,
    /**
     * The default input value, useful when not controlling the component.
     */
    defaultValue: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
    /**
     * If `true`, the input will be disabled.
     */
    disabled: PropTypes.bool,
    /**
     * If `true`, the input will not have an underline.
     */
    disableUnderline: PropTypes.bool,
    /**
     * End `InputAdornment` for this component.
     */
    endAdornment: PropTypes.node,
    /**
     * If `true`, the input will indicate an error. This is normally obtained via context from
     * FormControl.
     */
    error: PropTypes.bool,
    /**
     * If `true`, the input will take up the full width of its container.
     */
    fullWidth: PropTypes.bool,
    /**
     * The id of the `input` element.
     */
    id: PropTypes.string,
    /**
     * The component used for the native input.
     * Either a string to use a DOM element or a component.
     */
    inputComponent: PropTypes.oneOfType([PropTypes.string, PropTypes.func]),
    /**
     * Properties applied to the `input` element.
     */
    inputProps: PropTypes.object,
    /**
     * Use that property to pass a ref callback to the native input component.
     */
    inputRef: PropTypes.func,
    /**
     * If `dense`, will adjust vertical spacing. This is normally obtained via context from
     * FormControl.
     */
    margin: PropTypes.oneOf(['dense', 'none']),
    /**
     * If `true`, a textarea element will be rendered.
     */
    multiline: PropTypes.bool,
    /**
     * Name attribute of the `input` element.
     */
    name: PropTypes.string,
    /**
     * @ignore
     */
    onBlur: PropTypes.func,
    /**
     * Callback fired when the value is changed.
     *
     * @param {object} event The event source of the callback
     */
    onChange: PropTypes.func,
    /**
     * TODO
     */
    onClean: PropTypes.func,
    /**
     * TODO
     */
    onDirty: PropTypes.func,
    /**
     * @ignore
     */
    onFocus: PropTypes.func,
    /**
     * @ignore
     */
    onKeyDown: PropTypes.func,
    /**
     * @ignore
     */
    onKeyUp: PropTypes.func,
    /**
     * The short hint displayed in the input before the user enters a value.
     */
    placeholder: PropTypes.string,
    /**
     * @ignore
     */
    readOnly: PropTypes.bool,
    /**
     * Number of rows to display when multiline option is set to true.
     */
    rows: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
    /**
     * Maximum number of rows to display when multiline option is set to true.
     */
    rowsMax: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
    /**
     * Start `InputAdornment` for this component.
     */
    startAdornment: PropTypes.node,
    /**
     * Type of the input element. It should be a valid HTML5 input type.
     */
    type: PropTypes.string,
    /**
     * The input value, required for a controlled component.
     */
    value: PropTypes.oneOfType([PropTypes.string, PropTypes.number, PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.string, PropTypes.number]))])
  } : {};
  
  Input.muiName = 'Input';
  
  Input.defaultProps = {
    disableUnderline: false,
    fullWidth: false,
    multiline: false,
    type: 'text'
  };
  
  Input.contextTypes = {
    muiFormControl: PropTypes.object
  };
  
  Input.childContextTypes = {
    muiFormControl: PropTypes.object
  };
  
  export default withStyles(styles, { name: 'MuiInput' })(Input);