zent/lib/colorpicker/common/Saturation.js

一套前端设计语言和基于React的实现

'use strict';

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

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _throttle = require('lodash/throttle');

var _throttle2 = _interopRequireDefault(_throttle);

var _reactcss = require('../helpers/reactcss');

var _reactcss2 = _interopRequireDefault(_reactcss);

var _saturation = require('../helpers/saturation');

var saturation = _interopRequireWildcard(_saturation);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }

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

/**
 * 调色盘
 */
var Saturation = function (_Component) {
  (0, _inherits3['default'])(Saturation, _Component);

  function Saturation(props) {
    (0, _classCallCheck3['default'])(this, Saturation);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Saturation.__proto__ || Object.getPrototypeOf(Saturation)).call(this, props));

    _this.handleChange = function (e, skip) {
      _this.throttle(_this.props.onChange, saturation.calculateChange(e, skip, _this.props, _this.refs), e);
    };

    _this.handleMouseDown = function (e) {
      _this.handleChange(e, true);
      window.addEventListener('mousemove', _this.handleChange);
      window.addEventListener('mouseup', _this.handleMouseUp);
    };

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

    _this.throttle = (0, _throttle2['default'])(function (fn, data, e) {
      fn(data, e);
    }, 50);
    return _this;
  }

  (0, _createClass3['default'])(Saturation, [{
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.unbindEventListeners();
    }
  }, {
    key: 'unbindEventListeners',
    value: function unbindEventListeners() {
      window.removeEventListener('mousemove', this.handleChange);
      window.removeEventListener('mouseup', this.handleMouseUp);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

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

      var styles = (0, _reactcss2['default'])({
        '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',
            background: 'linear-gradient(to right, #fff, rgba(255,255,255,0))'
          },
          black: {
            absolute: '0px 0px 0px 0px',
            background: 'linear-gradient(to top, #000, rgba(0,0,0,0))',
            boxShadow: this.props.shadow
          },
          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 _react2['default'].createElement(
        'div',
        {
          style: styles.color,
          ref: function ref(_ref2) {
            return _this2.refs = _ref2;
          },
          onMouseDown: this.handleMouseDown,
          onTouchMove: this.handleChange,
          onTouchStart: this.handleChange
        },
        _react2['default'].createElement(
          'div',
          { style: styles.white },
          _react2['default'].createElement('div', { style: styles.black }),
          _react2['default'].createElement(
            'div',
            { style: styles.pointer },
            this.props.pointer ? _react2['default'].createElement(this.props.pointer, this.props) : _react2['default'].createElement('div', { style: styles.circle })
          )
        )
      );
    }
  }]);
  return Saturation;
}(_react.Component);

exports['default'] = Saturation;