Function StyleSheet

code/styling/public/app.js:20664–20695

()

  /* children (aka clones) of this StyleSheet inheriting all and future injections */

  function StyleSheet() {
    var _this = this;

    var target = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : IS_BROWSER ? document.head : null;
    var forceServer = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    classCallCheck(this, StyleSheet);

    this.getImportRuleTag = function () {
      var importRuleTag = _this.importRuleTag;

      if (importRuleTag !== undefined) {
        return importRuleTag;
      }

      var firstTag = _this.tags[0];
      var insertBefore = true;

      return _this.importRuleTag = makeTag(_this.target, firstTag ? firstTag.styleTag : null, _this.forceServer, insertBefore);
    };

    this.id = sheetRunningId += 1;
    this.sealed = false;
    this.forceServer = forceServer;
    this.target = forceServer ? null : target;
    this.tagMap = {};
    this.deferred = {};
    this.rehydratedNames = {};
    this.ignoreRehydratedNames = {};
    this.tags = [];
    this.capacity = 1;
    this.clones = [];
  }

  /* rehydrate all SSR'd style tags */