react-color/es/components/common/Saturation.js

A Collection of Color Pickers from Sketch, Photoshop, Chrome & more

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; }; }();

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; }

import React, { Component, PureComponent } from 'react';
import reactCSS from 'reactcss';
import throttle from 'lodash-es/throttle';
import * as saturation from '../../helpers/saturation';

export var Saturation = function (_ref) {
  _inherits(Saturation, _ref);

  function Saturation(props) {
    _classCallCheck(this, Saturation);

    var _this = _possibleConstructorReturn(this, (Saturation.__proto__ || Object.getPrototypeOf(Saturation)).call(this, props));

    _this.handleChange = function (e) {
      typeof _this.props.onChange === 'function' && _this.throttle(_this.props.onChange, saturation.calculateChange(e, _this.props.hsl, _this.container), e);
    };

    _this.handleMouseDown = function (e) {
      _this.handleChange(e);
      var renderWindow = _this.getContainerRenderWindow();
      renderWindow.addEventListener('mousemove', _this.handleChange);
      renderWindow.addEventListener('mouseup', _this.handleMouseUp);
    };

    _this.handleMouseUp = function () {
      _this.unbindEventListeners();
    };

    _this.throttle = throttle(function (fn, data, e) {
      fn(data, e);
    }, 50);
    return _this;
  }

  _createClass(Saturation, [{
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.throttle.cancel();
      this.unbindEventListeners();
    }
  }, {
    key: 'getContainerRenderWindow',
    value: function getContainerRenderWindow() {
      var container = this.container;

      var renderWindow = window;
      while (!renderWindow.document.contains(container) && renderWindow.parent !== renderWindow) {
        renderWindow = renderWindow.parent;
      }
      return renderWindow;
    }
  }, {
    key: 'unbindEventListeners',
    value: function unbindEventListeners() {
      var renderWindow = this.getContainerRenderWindow();
      renderWindow.removeEventListener('mousemove', this.handleChange);
      renderWindow.removeEventListener('mouseup', this.handleMouseUp);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var _ref2 = this.props.style || {},
          color = _ref2.color,
          white = _ref2.white,
          black = _ref2.black,
          pointer = _ref2.pointer,
          circle = _ref2.circle;

      var styles = reactCSS({
        'default': {
          color: {
            absolute: '0px 0px 0px 0px',
            background: 'hsl(' + this.props.hsl.h + ',100%, 50%)',
            borderRadius: this.props.radius
          },
          white: {
            absolute: '0px 0px 0px 0px',
            borderRadius: this.props.radius
          },
          black: {
            absolute: '0px 0px 0px 0px',
            boxShadow: this.props.shadow,
            borderRadius: this.props.radius
          },
          pointer: {
            position: 'absolute',
            top: -(this.props.hsv.v * 100) + 100 + '%',
            left: this.props.hsv.s * 100 + '%',
            cursor: 'default'
          },
          circle: {
            width: '4px',
            height: '4px',
            boxShadow: '0 0 0 1.5px #fff, inset 0 0 1px 1px rgba(0,0,0,.3),\n            0 0 1px 2px rgba(0,0,0,.4)',
            borderRadius: '50%',
            cursor: 'hand',
            transform: 'translate(-2px, -2px)'
          }
        },
        'custom': {
          color: color,
          white: white,
          black: black,
          pointer: pointer,
          circle: circle
        }
      }, { 'custom': !!this.props.style });

      return React.createElement(
        'div',
        {
          style: styles.color,
          ref: function ref(container) {
            return _this2.container = container;
          },
          onMouseDown: this.handleMouseDown,
          onTouchMove: this.handleChange,
          onTouchStart: this.handleChange
        },
        React.createElement(
          'style',
          null,
          '\n          .saturation-white {\n            background: -webkit-linear-gradient(to right, #fff, rgba(255,255,255,0));\n            background: linear-gradient(to right, #fff, rgba(255,255,255,0));\n          }\n          .saturation-black {\n            background: -webkit-linear-gradient(to top, #000, rgba(0,0,0,0));\n            background: linear-gradient(to top, #000, rgba(0,0,0,0));\n          }\n        '
        ),
        React.createElement(
          'div',
          { style: styles.white, className: 'saturation-white' },
          React.createElement('div', { style: styles.black, className: 'saturation-black' }),
          React.createElement(
            'div',
            { style: styles.pointer },
            this.props.pointer ? React.createElement(this.props.pointer, this.props) : React.createElement('div', { style: styles.circle })
          )
        )
      );
    }
  }]);

  return Saturation;
}(PureComponent || Component);

export default Saturation;