tweening-color-middleware/lib/index.js

Color middleware for tweening

'use strict';

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

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

var isHexStr = function isHexStr(v) {
  return typeof v === 'string' && v.match(/^#(?:[0-9a-f]{3}){1,2}$/i) !== null;
};

var isRgbStr = function isRgbStr(v) {
  return typeof v === 'string' && v.startsWith('rgb(');
};

var isRgbaStr = function isRgbaStr(v) {
  return typeof v === 'string' && v.startsWith('rgba(');
};

var isHexObj = function isHexObj(v) {
  return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && v.colorType === 'hex';
};

var isRgbObj = function isRgbObj(v) {
  return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && v.colorType === 'rgb';
};

var isRgbaObj = function isRgbaObj(v) {
  return (typeof v === 'undefined' ? 'undefined' : _typeof(v)) === 'object' && (v.colorType === 'rgba' || v.a < 1);
};

var hexToObj = function hexToObj(hex) {
  var value = hex.replace('#', '');

  if (value.length === 3) {
    value = value.split('').map(function (v) {
      return '' + v + v;
    }).join('');
  }

  return {
    middleware: 'color',
    colorType: 'hex',
    r: parseInt(value.slice(0, 2), 16),
    g: parseInt(value.slice(2, 4), 16),
    b: parseInt(value.slice(4, 6), 16),
    a: 1
  };
};

var rgbToObj = function rgbToObj(v) {
  var rgb = v.replace(/\s/g, '');

  var _rgb$substring$split = rgb.substring(4, rgb.length - 1).split(',');

  var _rgb$substring$split2 = _slicedToArray(_rgb$substring$split, 3);

  var r = _rgb$substring$split2[0];
  var g = _rgb$substring$split2[1];
  var b = _rgb$substring$split2[2];


  return {
    middleware: 'color',
    colorType: 'rgb',
    r: parseFloat(r),
    g: parseFloat(g),
    b: parseFloat(b),
    a: 1
  };
};

var rgbaToObj = function rgbaToObj(v) {
  var rgba = v.replace(/\s/g, '');

  var _rgba$substring$split = rgba.substring(5, rgba.length - 1).split(',');

  var _rgba$substring$split2 = _slicedToArray(_rgba$substring$split, 4);

  var r = _rgba$substring$split2[0];
  var g = _rgba$substring$split2[1];
  var b = _rgba$substring$split2[2];
  var a = _rgba$substring$split2[3];


  return {
    middleware: 'color',
    colorType: 'rgba',
    r: parseFloat(r),
    g: parseFloat(g),
    b: parseFloat(b),
    a: parseFloat(a)
  };
};

var objToHex = function objToHex(obj) {
  var r = Math.ceil(obj.r).toString(16);
  var g = Math.ceil(obj.g).toString(16);
  var b = Math.ceil(obj.b).toString(16);

  r = r.length === 1 ? '0' + r : r;
  g = g.length === 1 ? '0' + g : g;
  b = b.length === 1 ? '0' + b : b;

  return '#' + r + g + b;
};

var objToRgb = function objToRgb(_ref) {
  var r = _ref.r;
  var g = _ref.g;
  var b = _ref.b;
  return 'rgb(' + r + ',' + g + ',' + b + ')';
};

var objToRgba = function objToRgba(_ref2) {
  var r = _ref2.r;
  var g = _ref2.g;
  var b = _ref2.b;
  var a = _ref2.a;
  return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';
};

var colorMiddleware = {
  name: 'color',
  i: function i(v) {
    if (isHexStr(v)) {
      return hexToObj(v);
    } else if (isRgbStr(v)) {
      return rgbToObj(v);
    } else if (isRgbaStr(v)) {
      return rgbaToObj(v);
    }

    return v;
  },
  o: function o(v) {
    if (isRgbaObj(v)) {
      return objToRgba(v);
    } else if (isHexObj(v)) {
      return objToHex(v);
    } else if (isRgbObj(v)) {
      return objToRgb(v);
    }

    return v;
  }
};

exports.isHexStr = isHexStr;
exports.isRgbStr = isRgbStr;
exports.isRgbaStr = isRgbaStr;
exports.default = colorMiddleware;