fela-utils/es/clusterCache.js

Internal utilities for Fela

var _handlers;

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import { arrayReduce, objectReduce } from 'fast-loops';
import generateCSSRule from './generateCSSRule';
import objectSortByScore from './objectSortByScore';
import getRuleScore from './getRuleScore';
import { RULE_TYPE, KEYFRAME_TYPE, FONT_TYPE, STATIC_TYPE } from './styleTypes';
var handlers = (_handlers = {}, _defineProperty(_handlers, RULE_TYPE, function (cluster, _ref) {
  var selector = _ref.selector,
      declaration = _ref.declaration,
      support = _ref.support,
      media = _ref.media;
  var cssRule = generateCSSRule(selector, declaration);

  if (support) {
    if (media) {
      if (!cluster.supportMediaRules[media]) {
        cluster.supportMediaRules[media] = {};
      }

      if (!cluster.supportMediaRules[media][support]) {
        cluster.supportMediaRules[media][support] = '';
      }

      cluster.supportMediaRules[media][support] += cssRule;
    } else {
      if (!cluster.supportRules[support]) {
        cluster.supportRules[support] = '';
      }

      cluster.supportRules[support] += cssRule;
    }
  } else if (media) {
    if (!cluster.mediaRules[media]) {
      cluster.mediaRules[media] = '';
    }

    cluster.mediaRules[media] += cssRule;
  } else {
    cluster.rules += cssRule;
  }
}), _defineProperty(_handlers, FONT_TYPE, function (cluster, _ref2) {
  var fontFace = _ref2.fontFace;
  cluster.fontFaces += fontFace;
}), _defineProperty(_handlers, KEYFRAME_TYPE, function (cluster, _ref3) {
  var keyframe = _ref3.keyframe;
  cluster.keyframes += keyframe;
}), _defineProperty(_handlers, STATIC_TYPE, function (cluster, _ref4) {
  var css = _ref4.css,
      selector = _ref4.selector;

  if (selector) {
    cluster.statics += generateCSSRule(selector, css);
  } else {
    cluster.statics += css;
  }
}), _handlers);
export default function clusterCache(cache) {
  var ruleOrder = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var sortedCache = objectSortByScore(cache, function (value) {
    return getRuleScore(ruleOrder, value.pseudo);
  });
  return objectReduce(sortedCache, function (cluster, entry) {
    var handler = handlers[entry.type];

    if (handler) {
      handler(cluster, entry);
    }

    return cluster;
  }, {
    mediaRules: {},
    supportRules: {},
    supportMediaRules: {},
    fontFaces: '',
    statics: '',
    keyframes: '',
    rules: ''
  });
}