Issue 3143 - Filter elements with :-abp-has()

lib/filterClasses.js

Index: lib/filterClasses.js
===================================================================
--- a/lib/filterClasses.js
+++ b/lib/filterClasses.js
@@ -921,16 +921,18 @@
   selectorDomain: null,
   /**
    * CSS selector for the HTML elements that should be hidden
    * @type {string}
    */
   selector: null
 });
 
+var abpSelectorRegExp = /\[-abp-selector=(["'])(.+)\1\]/;
+
 /**
  * Creates an element hiding filter from a pre-parsed text representation
  *
  * @param {string} text         same as in Filter()
  * @param {string} domain
  *   domain part of the text representation (can be empty)
  * @param {boolean} isException exception rule indicator
  * @param {string} tagName      tag name part (can be empty)
@@ -983,23 +985,32 @@
   // Note: The ElemHide.prototype.domainSeparator is duplicated here, if that
   // changes this must be changed too.
   if (domain && /(^|,)~?(,|$)/.test(domain))
     return new InvalidFilter(text, "filter_invalid_domain");
 
   if (isException)
     return new ElemHideException(text, domain, selector);
 
-  if (selector.indexOf("[-abp-properties=") != -1)
+  if ((selector.indexOf("[-abp-properties=") != -1) ||
+      (selector.indexOf("[-abp-selector=") != -1))
   {
     // Element hiding emulation filters are inefficient so we need to make sure
     // that they're only applied if they specify active domains
     if (!/,[^~][^,.]*\.[^,]/.test("," + domain))
       return new InvalidFilter(text, "filter_elemhideemulation_nodomain");
 
+    var match = abpSelectorRegExp.exec(selector);
+    if (match)
+    {
+      var prefix = selector.substr(0, match.index).trim();
+      var suffix = selector.substr(match.index + match[0].length).trim();
+      var unwrappedSelector = prefix + match[2] + suffix;
+      return new ElemHideEmulationFilter(text, domain, unwrappedSelector);
+    }
     return new ElemHideEmulationFilter(text, domain, selector);
   }
 
   return new ElemHideFilter(text, domain, selector);
 };
 
 /**
  * Class for element hiding filters