iOS hover-click problem solution.

gistfile1.js

/**
 * Solution for http://stackoverflow.com/questions/21786375/ios-7-hover-click-issue-no-click-triggered-in-some-cases
 */
$(document).ready(function(){

   if (/* if this is not iOS */) {
      return;
   }

   var $body = $('body');

   function addPseudoHover() {
      this.classList.add('ws-pseudo-hover');
   }

   function removePseudoHover() {
      this.classList.remove('ws-pseudo-hover');
   }

   function uniq(item, index, array) {
      return array.indexOf(item, index + 1) == -1;
   }

   function trimHoverBase(selector) {
      return selector.substr(0, selector.indexOf(':hover')).trim();
   }

   function filterHoverSelectors(selector) {
      return selector.indexOf(':hover') != -1;
   }

   function createBodyDelegate(hoverSelector){
      $body.delegate(hoverSelector, 'mouseenter', addPseudoHover);
      $body.delegate(hoverSelector, 'mouseleave', removePseudoHover);
   }

   function processMutationRecord(mutationRecord) {
      var needRefresh = false;
      if (mutationRecord.addedNodes) {
         for(var i = 0, l = mutationRecord.addedNodes.length; i < l; i++) {
            if (mutationRecord.addedNodes[i].nodeName == 'LINK') {
               needRefresh = true;
               break;
            }
         }
      }
      if (needRefresh) {
         checkStylesheetSetDebonuced(); 
      }
   }

   function checkStylesheetSet() {
      var
         allHoverSelectors = [],
         allRules = [],
         sheet, sheetCheckResult;

      for(var i = 0, l = document.styleSheets.length; i < l; i++) {
         sheet = document.styleSheets[i];

         if (sheet.processed || sheet.rules.length === 0) {
            continue;
         }
         sheetCheckResult = checkCSSRuleSet(sheet);
         if (sheetCheckResult.rules.length > 0 && sheetCheckResult.selectors.length > 0) {
            Array.prototype.push.apply(allHoverSelectors, sheetCheckResult.selectors);
            Array.prototype.push.apply(allRules, sheetCheckResult.rules);
         }
         sheet.processed = true; 
      }

      // selector replace
      allRules.forEach(function(aRule){
         aRule.selectorText = aRule.selectorText.replace(':hover', '.ws-pseudo-hover');
      });

      // фильтруем уникальные селекторы, сорздаем делегатов на body
      allHoverSelectors.map(trimHoverBase).filter(uniq).forEach(createBodyDelegate);
   }

   var checkStylesheetSetDebonuced = checkStylesheetSet.debounce(420);

   function checkCSSRuleSet(sheet) {
      var result = {
         selectors: [],
         rules: []
      };
      for(var i = 0, l = sheet.rules.length; i < l; i++) {
         var rule = sheet.rules[i];

         if (rule.styleSheet && rule.href /* instanceof CSSImportRule*/) {
            checkCSSRuleSet(rule.styleSheet);
         } else if (rule.selectorText /* instanceof CSSStyleRule*/) {
            var hoverSelectors = getHoverSelectors(rule);
            if (hoverSelectors.length > 0) {
               if (checkStyles(rule)) {
                  Array.prototype.push.apply(result.selectors,