framework7/utils/utils.js

Full featured mobile HTML framework for building iOS & Android apps

/* eslint no-control-regex: "off" */
import { window } from 'ssr-window';
import bezier from './bezier';

// Remove Diacritics
const defaultDiacriticsRemovalap = [
  { base: 'A', letters: '\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u00C4\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F' },
  { base: 'AA', letters: '\uA732' },
  { base: 'AE', letters: '\u00C6\u01FC\u01E2' },
  { base: 'AO', letters: '\uA734' },
  { base: 'AU', letters: '\uA736' },
  { base: 'AV', letters: '\uA738\uA73A' },
  { base: 'AY', letters: '\uA73C' },
  { base: 'B', letters: '\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181' },
  { base: 'C', letters: '\u0043\u24B8\uFF23\u0106\u0108\u010A\u010C\u00C7\u1E08\u0187\u023B\uA73E' },
  { base: 'D', letters: '\u0044\u24B9\uFF24\u1E0A\u010E\u1E0C\u1E10\u1E12\u1E0E\u0110\u018B\u018A\u0189\uA779' },
  { base: 'DZ', letters: '\u01F1\u01C4' },
  { base: 'Dz', letters: '\u01F2\u01C5' },
  { base: 'E', letters: '\u0045\u24BA\uFF25\u00C8\u00C9\u00CA\u1EC0\u1EBE\u1EC4\u1EC2\u1EBC\u0112\u1E14\u1E16\u0114\u0116\u00CB\u1EBA\u011A\u0204\u0206\u1EB8\u1EC6\u0228\u1E1C\u0118\u1E18\u1E1A\u0190\u018E' },
  { base: 'F', letters: '\u0046\u24BB\uFF26\u1E1E\u0191\uA77B' },
  { base: 'G', letters: '\u0047\u24BC\uFF27\u01F4\u011C\u1E20\u011E\u0120\u01E6\u0122\u01E4\u0193\uA7A0\uA77D\uA77E' },
  { base: 'H', letters: '\u0048\u24BD\uFF28\u0124\u1E22\u1E26\u021E\u1E24\u1E28\u1E2A\u0126\u2C67\u2C75\uA78D' },
  { base: 'I', letters: '\u0049\u24BE\uFF29\u00CC\u00CD\u00CE\u0128\u012A\u012C\u0130\u00CF\u1E2E\u1EC8\u01CF\u0208\u020A\u1ECA\u012E\u1E2C\u0197' },
  { base: 'J', letters: '\u004A\u24BF\uFF2A\u0134\u0248' },
  { base: 'K', letters: '\u004B\u24C0\uFF2B\u1E30\u01E8\u1E32\u0136\u1E34\u0198\u2C69\uA740\uA742\uA744\uA7A2' },
  { base: 'L', letters: '\u004C\u24C1\uFF2C\u013F\u0139\u013D\u1E36\u1E38\u013B\u1E3C\u1E3A\u0141\u023D\u2C62\u2C60\uA748\uA746\uA780' },
  { base: 'LJ', letters: '\u01C7' },
  { base: 'Lj', letters: '\u01C8' },
  { base: 'M', letters: '\u004D\u24C2\uFF2D\u1E3E\u1E40\u1E42\u2C6E\u019C' },
  { base: 'N', letters: '\u004E\u24C3\uFF2E\u01F8\u0143\u00D1\u1E44\u0147\u1E46\u0145\u1E4A\u1E48\u0220\u019D\uA790\uA7A4' },
  { base: 'NJ', letters: '\u01CA' },
  { base: 'Nj', letters: '\u01CB' },
  { base: 'O', letters: '\u004F\u24C4\uFF2F\u00D2\u00D3\u00D4\u1ED2\u1ED0\u1ED6\u1ED4\u00D5\u1E4C\u022C\u1E4E\u014C\u1E50\u1E52\u014E\u022E\u0230\u00D6\u022A\u1ECE\u0150\u01D1\u020C\u020E\u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C' },
  { base: 'OI', letters: '\u01A2' },
  { base: 'OO', letters: '\uA74E' },
  { base: 'OU', letters: '\u0222' },
  { base: 'OE', letters: '\u008C\u0152' },
  { base: 'oe', letters: '\u009C\u0153' },
  { base: 'P', letters: '\u0050\u24C5\uFF30\u1E54\u1E56\u01A4\u2C63\uA750\uA752\uA754' },
  { base: 'Q', letters: '\u0051\u24C6\uFF31\uA756\uA758\u024A' },
  { base: 'R', letters: '\u0052\u24C7\uFF32\u0154\u1E58\u0158\u0210\u0212\u1E5A\u1E5C\u0156\u1E5E\u024C\u2C64\uA75A\uA7A6\uA782' },
  { base: 'S', letters: '\u0053\u24C8\uFF33\u1E9E\u015A\u1E64\u015C\u1E60\u0160\u1E66\u1E62\u1E68\u0218\u015E\u2C7E\uA7A8\uA784' },
  { base: 'T', letters: '\u0054\u24C9\uFF34\u1E6A\u0164\u1E6C\u021A\u0162\u1E70\u1E6E\u0166\u01AC\u01AE\u023E\uA786' },
  { base: 'TZ', letters: '\uA728' },
  { base: 'U', letters: '\u0055\u24CA\uFF35\u00D9\u00DA\u00DB\u0168\u1E78\u016A\u1E7A\u016C\u00DC\u01DB\u01D7\u01D5\u01D9\u1EE6\u016E\u0170\u01D3\u0214\u0216\u01AF\u1EEA\u1EE8\u1EEE\u1EEC\u1EF0\u1EE4\u1E72\u0172\u1E76\u1E74\u0244' },
  { base: 'V', letters: '\u0056\u24CB\uFF36\u1E7C\u1E7E\u01B2\uA75E\u0245' },
  { base: 'VY', letters: '\uA760' },
  { base: 'W', letters: '\u0057\u24CC\uFF37\u1E80\u1E82\u0174\u1E86\u1E84\u1E88\u2C72' },
  { base: 'X', letters: '\u0058\u24CD\uFF38\u1E8A\u1E8C' },
  { base: 'Y', letters: '\u0059\u24CE\uFF39\u1EF2\u00DD\u0176\u1EF8\u0232\u1E8E\u0178\u1EF6\u1EF4\u01B3\u024E\u1EFE' },
  { base: 'Z', letters: '\u005A\u24CF\uFF3A\u0179\u1E90\u017B\u017D\u1E92\u1E94\u01B5\u0224\u2C7F\u2C6B\uA762' },
  { base: 'a', letters: '\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u00E4\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250' },
  { base: 'aa', letters: '\uA733' },
  { base: 'ae', letters: '\u00E6\u01FD\u01E3' },
  { base: 'ao', letters: '\uA735' },
  { base: 'au', letters: '\uA737' },
  { base: 'av', letters: '\uA739\uA73B' },
  { base: 'ay', letters: '\uA73D' },
  { base: 'b', letters: '\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253' },
  { base: 'c', letters: '\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184' },
  { base: 'd', letters: '\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A' },
  { base: 'dz', letters: '\u01F3\u01C6' },
  { base: 'e', letters: '\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD' },
  { base: 'f', letters: '\u0066\u24D5\uFF46\u1E1F\u0192\uA77C' },
  { base: 'g', letters: '\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F' },
  { base: 'h', letters: '\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265' },
  { base: 'hv', letters: '\u0195' },
  { base: 'i', letters: '\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131' },
  { base: 'j', letters: '\u006A\u24D9\uFF4A\u0135\u01F0\u0249' },
  { base: 'k', letters: '\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3' },
  { base: 'l', letters: '\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747' },
  { base: 'lj', letters: '\u01C9' },
  { base: 'm', letters: '\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F' },
  { base: 'n', letters: '\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5' },
  { base: 'nj', letters: '\u01CC' },
  { base: 'o', letters: '\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u00F6\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275' },
  { base: 'oi', letters: '\u01A3' },
  { base: 'ou', letters: '\u0223' },
  { base: 'oo', letters: '\uA74F' },
  { base: 'p', letters: '\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755' },
  { base: 'q', letters: '\u0071\u24E0\uFF51\u024B\uA757\uA759' },
  { base: 'r', letters: '\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783' },
  { base: 's', letters: '\u0073\u24E2\uFF53\u00DF\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B' },
  { base: 't', letters: '\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787' },
  { base: 'tz', letters: '\uA729' },
  { base: 'u', letters: '\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u00FC\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289' },
  { base: 'v', letters: '\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C' },
  { base: 'vy', letters: '\uA761' },
  { base: 'w', letters: '\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73' },
  { base: 'x', letters: '\u0078\u24E7\uFF58\u1E8B\u1E8D' },
  { base: 'y', letters: '\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF' },
  { base: 'z', letters: '\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763' },
];

const diacriticsMap = {};
for (let i = 0; i < defaultDiacriticsRemovalap.length; i += 1) {
  const letters = defaultDiacriticsRemovalap[i].letters;
  for (let j = 0; j < letters.length; j += 1) {
    diacriticsMap[letters[j]] = defaultDiacriticsRemovalap[i].base;
  }
}

let uniqueNumber = 1;

const Utils = {
  uniqueNumber() {
    uniqueNumber += 1;
    return uniqueNumber;
  },
  id(mask = 'xxxxxxxxxx', map = '0123456789abcdef') {
    const length = map.length;
    return mask.replace(/x/g, () => map[Math.floor((Math.random() * length))]);
  },
  mdPreloaderContent: `
    <span class="preloader-inner">
      <span class="preloader-inner-gap"></span>
      <span class="preloader-inner-left">
          <span class="preloader-inner-half-circle"></span>
      </span>
      <span class="preloader-inner-right">
          <span class="preloader-inner-half-circle"></span>
      </span>
    </span>
  `.trim(),
  iosPreloaderContent: `
    <span class="preloader-inner">
      ${[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11].map(() => '<span class="preloader-inner-line"></span>').join('')}
    </span>
  `.trim(),
  auroraPreloaderContent: `
    <span class="preloader-inner">
      <span class="preloader-inner-circle"></span>
    </span>
  `,
  eventNameToColonCase(eventName) {
    let hasColon;
    return eventName.split('').map((char, index) => {
      if (char.match(/[A-Z]/) && index !== 0 && !hasColon) {
        hasColon = true;
        return `:${char.toLowerCase()}`;
      }
      return char.toLowerCase();
    }).join('');
  },
  deleteProps(obj) {
    const object = obj;
    Object.keys(object).forEach((key) => {
      try {
        object[key] = null;
      } catch (e) {
        // no setter for object
      }
      try {
        delete object[key];
      } catch (e) {
        // something got wrong
      }
    });
  },
  bezier(...args) {
    return bezier(...args);
  },
  nextTick(callback, delay = 0) {
    return setTimeout(callback, delay);
  },
  nextFrame(callback) {
    return Utils.requestAnimationFrame(() => {
      Utils.requestAnimationFrame(callback);
    });
  },
  now() {
    return Date.now();
  },
  requestAnimationFrame(callback) {
    return window.requestAnimationFrame(callback);
  },
  cancelAnimationFrame(id) {
    return window.cancelAnimationFrame(id);
  },
  removeDiacritics(str) {
    return str.replace(/[^\u0000-\u007E]/g, a => diacriticsMap[a] || a);
  },
  parseUrlQuery(url) {
    const query = {};
    let urlToParse = url || window.location.href;
    let i;
    let params;
    let param;
    let length;
    if (typeof urlToParse === 'string' && urlToParse.length) {
      urlToParse = urlToParse.indexOf('?') > -1 ? urlToParse.replace(/\S*\?/, '') : '';
      params = urlToParse.split('&').filter(paramsPart => paramsPart !== '');
      length = params.length;

      for (i = 0; i < length; i += 1) {
        param = params[i].replace(/#\S+/g, '').split('=');
        query[decodeURIComponent(param[0])] = typeof param[1] === 'undefined' ? undefined : decodeURIComponent(param.slice(1).join('=')) || '';
      }
    }
    return query;
  },
  getTranslate(el, axis = 'x') {
    let matrix;
    let curTransform;
    let transformMatrix;

    const curStyle = window.getComputedStyle(el, null);

    if (window.WebKitCSSMatrix) {
      curTransform = curStyle.transform || curStyle.webkitTransform;
      if (curTransform.split(',').length > 6) {
        curTransform = curTransform.split(', ').map(a => a.replace(',', '.')).join(', ');
      }
      // Some old versions of Webkit choke when 'none' is passed; pass
      // empty string instead in this case
      transformMatrix = new window.WebKitCSSMatrix(curTransform === 'none' ? '' : curTransform);
    } else {
      transformMatrix = curStyle.MozTransform || curStyle.OTransform || curStyle.MsTransform || curStyle.msTransform || curStyle.transform || curStyle.getPropertyValue('transform').replace('translate(', 'matrix(1, 0, 0, 1,');
      matrix = transformMatrix.toString().split(',');
    }

    if (axis === 'x') {
      // Latest Chrome and webkits Fix
      if (window.WebKitCSSMatrix) curTransform = transformMatrix.m41;
      // Crazy IE10 Matrix
      else if (matrix.length === 16) curTransform = parseFloat(matrix[12]);
      // Normal Browsers
      else curTransform = parseFloat(matrix[4]);
    }
    if (axis === 'y') {
      // Latest Chrome and webkits Fix
      if (window.WebKitCSSMatrix) curTransform = transformMatrix.m42;
      // Crazy IE10 Matrix
      else if (matrix.length === 16) curTransform = parseFloat(matrix[13]);
      // Normal Browsers
      else curTransform = parseFloat(matrix[5]);
    }
    return curTransform || 0;
  },
  serializeObject(obj, parents = []) {
    if (typeof obj === 'string') return obj;
    const resultArray = [];
    const separator = '&';
    let newParents;
    function varName(name) {
      if (parents.length > 0) {
        let parentParts = '';
        for (let j = 0; j < parents.length; j += 1) {
          if (j === 0) parentParts += parents[j];
          else parentParts += `[${encodeURIComponent(parents[j])}]`;
        }
        return `${parentParts}[${encodeURIComponent(name)}]`;
      }
      return encodeURIComponent(name);
    }
    function varValue(value) {
      return encodeURIComponent(value);
    }
    Object.keys(obj).forEach((prop) => {
      let toPush;
      if (Array.isArray(obj[prop])) {
        toPush = [];
        for (let i = 0; i < obj[prop].length; i += 1) {
          if (!Array.isArray(obj[prop][i]) && typeof obj[prop][i] === 'object') {
            newParents = parents.slice();
            newParents.push(prop);
            newParents.push(String(i));
            toPush.push(Utils.serializeObject(obj[prop][i], newParents));
          } else {
            toPush.push(`${varName(prop)}[]=${varValue(obj[prop][i])}`);
          }
        }
        if (toPush.length > 0) resultArray.push(toPush.join(separator));
      } else if (obj[prop] === null || obj[prop] === '') {
        resultArray.push(`${varName(prop)}=`);
      } else if (typeof obj[prop] === 'object') {
        // Object, convert to named array
        newParents = parents.slice();
        newParents.push(prop);
        toPush = Utils.serializeObject(obj[prop], newParents);
        if (toPush !== '') resultArray.push(toPush);
      } else if (typeof obj[prop] !== 'undefined' && obj[prop] !== '') {
        // Should be string or plain value
        resultArray.push(`${varName(prop)}=${varValue(obj[prop])}`);
      } else if (obj[prop] === '') resultArray.push(varName(prop));
    });
    return resultArray.join(separator);
  },
  isObject(o) {
    return typeof o === 'object' && o !== null && o.constructor && o.constructor === Object;
  },
  merge(...args) {
    const to = args[0];
    args.splice(0, 1);
    const from = args;

    for (let i = 0; i < from.length; i += 1) {
      const nextSource = args[i];
      if (nextSource !== undefined && nextSource !== null) {
        const keysArray = Object.keys(Object(nextSource));
        for (let nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex += 1) {
          const nextKey = keysArray[nextIndex];
          const desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);
          if (desc !== undefined && desc.enumerable) {
            to[nextKey] = nextSource[nextKey];
          }
        }
      }
    }
    return to;
  },
  extend(...args) {
    let deep = true;
    let to;
    let from;
    if (typeof args[0] === 'boolean') {
      deep = args[0];
      to = args[1];
      args.splice(0, 2);
      from = args;
    } else {
      to = args[0];
      args.splice(0, 1);
      from = args;
    }
    for (let i = 0; i < from.length; i += 1) {
      const nextSource = args[i];
      if (nextSource !== undefined && nextSource !== null) {
        const keysArray = Object.keys(Object(nextSource));
        for (let nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex += 1) {
          const nextKey = keysArray[nextIndex];
          const desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);
          if (desc !== undefined && desc.enumerable) {
            if (!deep) {
              to[nextKey] = nextSource[nextKey];
            } else if (Utils.isObject(to[nextKey]) && Utils.isObject(nextSource[nextKey])) {
              Utils.extend(to[nextKey], nextSource[nextKey]);
            } else if (!Utils.isObject(to[nextKey]) && Utils.isObject(nextSource[nextKey])) {
              to[nextKey] = {};
              Utils.extend(to[nextKey], nextSource[nextKey]);
            } else {
              to[nextKey] = nextSource[nextKey];
            }
          }
        }
      }
    }
    return to;
  },
  colorHexToRgb(hex) {
    const h = hex.replace(/^#?([a-f\d])([a-f\d])([a-f\d])$/i, (m, r, g, b) => r + r + g + g + b + b);
    const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(h);
    return result
      ? result.slice(1).map(n => parseInt(n, 16))
      : null;
  },
  colorRgbToHex(r, g, b) {
    const result = [r, g, b].map((n) => {
      const hex = n.toString(16);
      return hex.length === 1 ? `0${hex}` : hex;
    }).join('');
    return `#${result}`;
  },
  colorRgbToHsl(r, g, b) {
    r /= 255; // eslint-disable-line
    g /= 255; // eslint-disable-line
    b /= 255; // eslint-disable-line
    const max = Math.max(r, g, b);
    const min = Math.min(r, g, b);
    const d = max - min;
    let h;
    if (d === 0) h = 0;
    else if (max === r) h = ((g - b) / d) % 6;
    else if (max === g) h = (b - r) / d + 2;
    else if (max === b) h = (r - g) / d + 4;
    const l = (min + max) / 2;
    const s = d === 0 ? 0 : d / (1 - Math.abs(2 * l - 1));
    if (h < 0) h = 360 / 60 + h;
    return [h * 60, s, l];
  },
  colorHslToRgb(h, s, l) {
    const c = (1 - Math.abs(2 * l - 1)) * s;
    const hp = h / 60;
    const x = c * (1 - Math.abs((hp % 2) - 1));
    let rgb1;
    if (Number.isNaN(h) || typeof h === 'undefined') {
      rgb1 = [0, 0, 0];
    } else if (hp <= 1) rgb1 = [c, x, 0];
    else if (hp <= 2) rgb1 = [x, c, 0];
    else if (hp <= 3) rgb1 = [0, c, x];
    else if (hp <= 4) rgb1 = [0, x, c];
    else if (hp <= 5) rgb1 = [x, 0, c];
    else if (hp <= 6) rgb1 = [c, 0, x];
    const m = l - (c / 2);
    return rgb1.map(n => Math.max(0, Math.min(255, Math.round(255 * (n + m)))));
  },
  colorHsbToHsl(h, s, b) {
    const HSL = {
      h,
      s: 0,
      l: 0,
    };
    const HSB = { h, s, b };

    HSL.l = (2 - HSB.s) * HSB.b / 2;
    HSL.s = HSL.l && HSL.l < 1 ? HSB.s * HSB.b / (HSL.l < 0.5 ? HSL.l * 2 : 2 - HSL.l * 2) : HSL.s;

    return [HSL.h, HSL.s, HSL.l];
  },
  colorHslToHsb(h, s, l) {
    const HSB = {
      h,
      s: 0,
      b: 0,
    };
    const HSL = { h, s, l };

    const t = HSL.s * (HSL.l < 0.5 ? HSL.l : 1 - HSL.l);
    HSB.b = HSL.l + t;
    HSB.s = HSL.l > 0 ? 2 * t / HSB.b : HSB.s;

    return [HSB.h, HSB.s, HSB.b];
  },
  colorThemeCSSProperties(...args) {
    let hex;
    let rgb;
    if (args.length === 1) {
      hex = args[0];
      rgb = Utils.colorHexToRgb(hex);
    } else if (args.length === 3) {
      rgb = args;
      hex = Utils.colorRgbToHex(...rgb);
    }
    if (!rgb) return {};
    const hsl = Utils.colorRgbToHsl(...rgb);
    const hslShade = [hsl[0], hsl[1], Math.max(0, (hsl[2] - 0.08))];
    const hslTint = [hsl[0], hsl[1], Math.max(0, (hsl[2] + 0.08))];
    const shade = Utils.colorRgbToHex(...Utils.colorHslToRgb(...hslShade));
    const tint = Utils.colorRgbToHex(...Utils.colorHslToRgb(...hslTint));
    return {
      '--f7-theme-color': hex,
      '--f7-theme-color-rgb': rgb.join(', '),
      '--f7-theme-color-shade': shade,
      '--f7-theme-color-tint': tint,
    };
  },
};
export default Utils;