react-material-web-components/lib/Slider/Slider.js

React Wrapper for Material Design Components

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _MDCComponent2 = require('../MDCComponent');

var _mdc = require('@material/slider/dist/mdc.slider');

var _classnames = require('classnames');

var _classnames2 = _interopRequireDefault(_classnames);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Slider = function (_MDCComponent) {
  _inherits(Slider, _MDCComponent);

  function Slider() {
    _classCallCheck(this, Slider);

    return _possibleConstructorReturn(this, (Slider.__proto__ || Object.getPrototypeOf(Slider)).apply(this, arguments));
  }

  _createClass(Slider, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      _get(Slider.prototype.__proto__ || Object.getPrototypeOf(Slider.prototype), 'componentDidMount', this).call(this);

      this._setupListeners();
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      if (this.component_.max !== nextProps.max) {
        this.component_.max = nextProps.max;
      }
      if (this.component_.min !== nextProps.min) {
        this.component_.min = nextProps.min;
      }
      if (this.component_.value !== nextProps.value) {
        this.component_.value = nextProps.value;
      }
      if (nextProps.step !== this.props.step) {
        this.component_.step = nextProps.step;
      }
      if (nextProps.disabled !== this.props.disabled) {
        this.component_.disabled = nextProps.disabled;
      }
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this._clearListeners();

      _get(Slider.prototype.__proto__ || Object.getPrototypeOf(Slider.prototype), 'componentWillUnmount', this).call(this);
    }
  }, {
    key: 'attachTo',
    value: function attachTo(el) {
      var _props = this.props,
          max = _props.max,
          min = _props.min,
          value = _props.value;

      var pctComplete = (value - min) / (max - min);
      var translatePx = el.offsetWidth - pctComplete;
      // Preventing FOUC
      el.querySelector('.mdc-slider__thumb-container').style.transform = 'translateX(' + translatePx + 'px) translateX(-50%)';
      el.querySelector('.mdc-slider__track').style.transform = 'scale(' + pctComplete + ')';

      return new _mdc.MDCSlider(el);
    }
  }, {
    key: 'layout',
    value: function layout() {
      this.component_.layout();
    }
  }, {
    key: 'stepUp',
    value: function stepUp() {
      var amount = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;

      this.component_.stepUp(amount);
    }
  }, {
    key: 'stepDown',
    value: function stepDown() {
      var amount = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;

      this.component_.stepDown(amount);
    }
  }, {
    key: '_setupListeners',
    value: function _setupListeners() {
      var _this2 = this;

      this.listen('MDCSlider:change', this.changeListener_ = function (e) {
        return _this2.props.onChange(e, _this2.component_.value);
      });
      this.listen('MDCSlider:input', this.inputListener_ = function (e) {
        return _this2.props.onInput(e, _this2.component_.value);
      });
    }
  }, {
    key: '_clearListeners',
    value: function _clearListeners() {
      this.unlisten('MDCSlider:change', this.changeListener_);
      this.unlisten('MDCSlider:input', this.inputListener_);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      var _props2 = this.props,
          children = _props2.children,
          className = _props2.className,
          disabled = _props2.disabled,
          discrete = _props2.discrete,
          displayMarkers = _props2.displayMarkers,
          label = _props2.label,
          max = _props2.max,
          min = _props2.min,
          onChange = _props2.onChange,
          onInput = _props2.onInput,
          step = _props2.step,
          tabIndex = _props2.tabIndex,
          thumbRadius = _props2.thumbRadius,
          thumbSize = _props2.thumbSize,
          value = _props2.value,
          otherProps = _objectWithoutProperties(_props2, ['children', 'className', 'disabled', 'discrete', 'displayMarkers', 'label', 'max', 'min', 'onChange', 'onInput', 'step', 'tabIndex', 'thumbRadius', 'thumbSize', 'value']);

      var cssClasses = (0, _classnames2.default)({
        'mdc-slider': true,
        'mdc-slider--disabled': disabled,
        'mdc-slider--discrete': discrete,
        'mdc-slider--display-markers': discrete && displayMarkers,
        'mdc-slider--off': value === 0 // Preventing FOUC
      }, className);
      return _react2.default.createElement(
        'div',
        _extends({}, otherProps, {
          'aria-disabled': disabled,
          'aria-label': label,
          'aria-valuemax': max,
          'aria-valuemin': min,
          'aria-valuenow': value,
          className: cssClasses,
          ref: function ref(el) {
            return _this3.root_ = el;
          },
          role: 'slider',
          tabIndex: disabled ? -1 : tabIndex
        }, step || discrete ? { 'data-step': step || 1 } : null),
        _react2.default.createElement(
          'div',
          { className: 'mdc-slider__track-container' },
          _react2.default.createElement('div', { className: 'mdc-slider__track' }),
          discrete && displayMarkers && _react2.default.createElement('div', { className: 'mdc-slider__track-marker-container' })
        ),
        _react2.default.createElement(
          'div',
          { className: 'mdc-slider__thumb-container' },
          discrete && _react2.default.createElement(
            'div',
            { className: 'mdc-slider__pin' },
            _react2.default.createElement('span', { className: 'mdc-slider__pin-value-marker' })
          ),
          _react2.default.createElement(
            'svg',
            {
              className: 'mdc-slider__thumb',
              height: thumbSize,
              width: thumbSize
            },
            _react2.default.createElement('circle', {
              cx: thumbSize / 2,
              cy: thumbSize / 2,
              r: thumbRadius
            })
          ),
          _react2.default.createElement('div', { className: 'mdc-slider__focus-ring' })
        )
      );
    }
  }]);

  return Slider;
}(_MDCComponent2.MDCComponent);

Slider.displayName = 'Slider';
Slider.propTypes = {
  children: _propTypes2.default.node,
  className: _propTypes2.default.string,
  disabled: _propTypes2.default.bool,
  discrete: _propTypes2.default.bool,
  displayMarkers: _propTypes2.default.bool,
  label: _propTypes2.default.string,
  max: _propTypes2.default.number,
  min: _propTypes2.default.number,
  onChange: _propTypes2.default.func,
  onInput: _propTypes2.default.func,
  step: _propTypes2.default.number,
  tabIndex: _propTypes2.default.number,
  thumbRadius: _propTypes2.default.number,
  thumbSize: _propTypes2.default.number,
  value: _propTypes2.default.number
};
Slider.defaultProps = {
  max: 100,
  min: 0,
  onChange: function onChange() {},
  onInput: function onInput() {},
  step: 0,
  tabIndex: 0,
  thumbRadius: 7.875,
  thumbSize: 21,
  value: 0
};
exports.default = Slider;