Function readRules

src/ElementQueries.js:362–392

* @param {CssRule[]|String} rules

(rules)

         * @param {CssRule[]|String} rules
         */
        function readRules(rules) {
            var selector = '';

            if (!rules) {
                return;
            }

            if ('string' === typeof rules) {
                rules = rules.toLowerCase();
                if (-1 !== rules.indexOf('min-width') || -1 !== rules.indexOf('max-width')) {
                    extractQuery(rules);
                }
            } else {
                for (var i = 0, j = rules.length; i < j; i++) {
                    if (1 === rules[i].type) {
                        selector = rules[i].selectorText || rules[i].cssText;
                        if (-1 !== selector.indexOf('min-height') || -1 !== selector.indexOf('max-height')) {
                            extractQuery(selector);
                        } else if (-1 !== selector.indexOf('min-width') || -1 !== selector.indexOf('max-width')) {
                            extractQuery(selector);
                        }
                    } else if (4 === rules[i].type) {
                        readRules(rules[i].cssRules || rules[i].rules);
                    } else if (3 === rules[i].type) {
                        if(rules[i].styleSheet.hasOwnProperty("cssRules")) {
                            readRules(rules[i].styleSheet.cssRules);
                        }
                    }
                }
            }
        }

        var defaultCssInjected = false;