Issue 4394 - Create a filter class for element hiding emulation filters

lib/filterListener.js

Index: lib/filterListener.js
===================================================================
--- a/lib/filterListener.js
+++ b/lib/filterListener.js
@@ -22,19 +22,19 @@
 "use strict";
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 
 let {FilterStorage} = require("filterStorage");
 let {FilterNotifier} = require("filterNotifier");
 let {ElemHide} = require("elemHide");
-let {CSSRules} = require("cssRules");
+let {ElemHideEmulation} = require("elemHideEmulation");
 let {defaultMatcher} = require("matcher");
-let {ActiveFilter, RegExpFilter, ElemHideBase, CSSPropertyFilter} =
+let {ActiveFilter, RegExpFilter, ElemHideBase, ElemHideEmulationFilter} =
     require("filterClasses");
 let {Prefs} = require("prefs");
 
 /**
  * Increases on filter changes, filters will be saved if it exceeds 1.
  * @type Integer
  */
 let isDirty = 0;
@@ -137,18 +137,18 @@
       hasEnabled = true;
   if (!hasEnabled)
     return;
 
   if (filter instanceof RegExpFilter)
     defaultMatcher.add(filter);
   else if (filter instanceof ElemHideBase)
   {
-    if (filter instanceof CSSPropertyFilter)
-      CSSRules.add(filter);
+    if (filter instanceof ElemHideEmulationFilter)
+      ElemHideEmulation.add(filter);
     else
       ElemHide.add(filter);
   }
 }
 
 /**
  * Notifies Matcher instances or ElemHide object about removal of a filter
  * if necessary.
@@ -168,18 +168,18 @@
     if (hasEnabled)
       return;
   }
 
   if (filter instanceof RegExpFilter)
     defaultMatcher.remove(filter);
   else if (filter instanceof ElemHideBase)
   {
-    if (filter instanceof CSSPropertyFilter)
-      CSSRules.remove(filter);
+    if (filter instanceof ElemHideEmulationFilter)
+      ElemHideEmulation.remove(filter);
     else
       ElemHide.remove(filter);
   }
 }
 
 const primes = [101, 109, 131, 149, 163, 179, 193, 211, 229, 241];
 
 function addFilters(filters)
@@ -291,17 +291,17 @@
 }
 
 function onLoad()
 {
   isDirty = 0;
 
   defaultMatcher.clear();
   ElemHide.clear();
-  CSSRules.clear();
+  ElemHideEmulation.clear();
   for (let subscription of FilterStorage.subscriptions)
     if (!subscription.disabled)
       addFilters(subscription.filters);
 }
 
 function onSave()
 {
   isDirty = 0;