ABP/Android JavaScript code

assets/js/FilterListener.jsm

Index: assets/js/FilterListener.jsm
===================================================================
new file mode 100755
--- /dev/null
+++ b/assets/js/FilterListener.jsm
@@ -0,0 +1,268 @@
+/*
+ * This Source Code is subject to the terms of the Mozilla Public License
+ * version 2.0 (the "License"). You can obtain a copy of the License at
+ * http://mozilla.org/MPL/2.0/.
+ */
+
+//
+// This file has been generated automatically from Adblock Plus source code
+//
+
+(function (_patchFunc2) {
+  const cacheVersion = 3;
+  var batchMode = false;
+  var isDirty = 0;
+  var FilterListener = {
+    startup: function () {
+      FilterNotifier.addListener(function (action, item, newValue, oldValue) {
+        if (/^filter\.(.*)/.test(action))
+          onFilterChange(RegExp["$1"], item, newValue, oldValue);
+         else
+          if (/^subscription\.(.*)/.test(action))
+            onSubscriptionChange(RegExp["$1"], item, newValue, oldValue);
+           else
+            onGenericChange(action, item);
+      }
+      );
+      ElemHide.init();
+      var initialized = false;
+      var cacheFile = Utils.resolveFilePath(Prefs.data_directory);
+      cacheFile.append("cache.js");
+      if (cacheFile.exists()) {
+        try {
+          var stream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(Ci.nsIFileInputStream);
+          stream.init(cacheFile, 1, 292, 0);
+          var json = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
+          var cache = json.decodeFromStream(stream, "UTF-8");
+          stream.close();
+          if (cache.version == cacheVersion && cache.patternsTimestamp == FilterStorage.sourceFile.clone().lastModifiedTime) {
+            defaultMatcher.fromCache(cache);
+            ElemHide.fromCache(cache);
+            var loadDone = false;
+            function trapProperty(obj, prop) {
+              var origValue = obj[prop];
+              delete obj[prop];
+              obj.__defineGetter__(prop, function () {
+                delete obj[prop];
+                obj[prop] = origValue;
+                if (!loadDone) {
+                  loadDone = true;
+                  FilterStorage.loadFromDisk(null, true);
+                }
+                return obj[prop];
+              }
+              );
+              obj.__defineSetter__(prop, function (value) {
+                delete obj[prop];
+                return obj[prop] = value;
+              }
+              );
+            }
+            for (var _loopIndex0 = 0;
+            _loopIndex0 < ["fileProperties", "subscriptions", "knownSubscriptions", "addSubscription", "removeSubscription", "updateSubscriptionFilters", "addFilter", "removeFilter", "increaseHitCount", "resetHitCounts"].length; ++ _loopIndex0) {
+              var prop = ["fileProperties", "subscriptions", "knownSubscriptions", "addSubscription", "removeSubscription", "updateSubscriptionFilters", "addFilter", "removeFilter", "increaseHitCount", "resetHitCounts"][_loopIndex0];
+              trapProperty(FilterStorage, prop);
+            }
+            trapProperty(Filter, "fromText");
+            trapProperty(Filter, "knownFilters");
+            trapProperty(Subscription, "fromURL");
+            trapProperty(Subscription, "knownSubscriptions");
+            initialized = true;
+            ElemHide.apply();
+          }
+        }
+        catch (e){
+          Cu.reportError(e);
+        }
+      }
+      if (!initialized)
+        FilterStorage.loadFromDisk();
+      Utils.observerService.addObserver(FilterListenerPrivate, "browser:purge-session-history", true);
+    }
+    ,
+    shutdown: function () {
+      if (isDirty > 0)
+        FilterStorage.saveToDisk();
+    }
+    ,
+    get batchMode() {
+      return batchMode;
+    }
+    ,
+    set batchMode(value) {
+      batchMode = value;
+      flushElemHide();
+    }
+    ,
+    setDirty: function (factor) {
+      if (factor == 0 && isDirty > 0)
+        isDirty = 1;
+       else
+        isDirty += factor;
+      if (isDirty >= 1 && !filtersFlushScheduled) {
+        Utils.runAsync(flushFiltersInternal);
+        filtersFlushScheduled = true;
+      }
+    }
+    
+  };
+  var FilterListenerPrivate = {
+    observe: function (subject, topic, data) {
+      if (topic == "browser:purge-session-history" && Prefs.clearStatsOnHistoryPurge) {
+        FilterStorage.resetHitCounts();
+        FilterListener.setDirty(0);
+        Prefs.recentReports = "[]";
+      }
+    }
+    ,
+    QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference, Ci.nsIObserver])
+  };
+  var elemhideFlushScheduled = false;
+  function flushElemHide() {
+    if (elemhideFlushScheduled)
+      return ;
+    Utils.runAsync(flushElemHideInternal);
+    elemhideFlushScheduled = true;
+  }
+  function flushElemHideInternal() {
+    elemhideFlushScheduled = false;
+    if (!batchMode && ElemHide.isDirty)
+      ElemHide.apply();
+  }
+  var filtersFlushScheduled = false;
+  function flushFiltersInternal() {
+    filtersFlushScheduled = false;
+    FilterStorage.saveToDisk();
+  }
+  function addFilter(filter) {
+    if (!(filter instanceof ActiveFilter) || filter.disabled)
+      return ;
+    var hasEnabled = false;
+    for (var i = 0;
+    i < filter.subscriptions.length; i++)
+      if (!filter.subscriptions[i].disabled)
+        hasEnabled = true;
+    if (!hasEnabled)
+      return ;
+    if (filter instanceof RegExpFilter)
+      defaultMatcher.add(filter);
+     else
+      if (filter instanceof ElemHideFilter)
+        ElemHide.add(filter);
+  }
+  function removeFilter(filter) {
+    if (!(filter instanceof ActiveFilter))
+      return ;
+    if (!filter.disabled) {
+      var hasEnabled = false;
+      for (var i = 0;
+      i < filter.subscriptions.length; i++)
+        if (!filter.subscriptions[i].disabled)
+          hasEnabled = true;
+      if (hasEnabled)
+        return ;
+    }
+    if (filter instanceof RegExpFilter)
+      defaultMatcher.remove(filter);
+     else
+      if (filter instanceof ElemHideFilter)
+        ElemHide.remove(filter);
+  }
+  function onSubscriptionChange(action, subscription, newValue, oldValue) {
+    if (action == "homepage" || action == "downloadStatus" || action == "lastDownload")
+      FilterListener.setDirty(0.2);
+     else
+      FilterListener.setDirty(1);
+    if (action != "added" && action != "removed" && action != "disabled" && action != "updated")
+      return ;
+    if (action != "removed" && !(subscription.url in FilterStorage.knownSubscriptions)) {
+      return ;
+    }
+    if ((action == "added" || action == "removed" || action == "updated") && subscription.disabled) {
+      return ;
+    }
+    if (action == "added" || action == "removed" || action == "disabled") {
+      var method = (action == "added" || (action == "disabled" && newValue == false) ? addFilter : removeFilter);
+      if (subscription.filters)
+        subscription.filters.forEach(method);
+    }
+     else
+      if (action == "updated") {
+        subscription.oldFilters.forEach(removeFilter);
+        subscription.filters.forEach(addFilter);
+      }
+    flushElemHide();
+  }
+  function onFilterChange(action, filter, newValue, oldValue) {
+    if (action == "hitCount" || action == "lastHit")
+      FilterListener.setDirty(0.0001);
+     else
+      if (action == "disabled" || action == "moved")
+        FilterListener.setDirty(0.2);
+       else
+        FilterListener.setDirty(1);
+    if (action != "added" && action != "removed" && action != "disabled")
+      return ;
+    if ((action == "added" || action == "removed") && filter.disabled) {
+      return ;
+    }
+    if (action == "added" || (action == "disabled" && newValue == false))
+      addFilter(filter);
+     else
+      removeFilter(filter);
+    flushElemHide();
+  }
+  function onGenericChange(action) {
+    if (action == "load") {
+      isDirty = 0;
+      defaultMatcher.clear();
+      ElemHide.clear();
+      for (var _loopIndex1 = 0;
+      _loopIndex1 < FilterStorage.subscriptions.length; ++ _loopIndex1) {
+        var subscription = FilterStorage.subscriptions[_loopIndex1];
+        if (!subscription.disabled)
+          subscription.filters.forEach(addFilter);
+      }
+      flushElemHide();
+    }
+     else
+      if (action == "save") {
+        isDirty = 0;
+        var cache = {
+          version: cacheVersion,
+          patternsTimestamp: FilterStorage.sourceFile.clone().lastModifiedTime
+        };
+        defaultMatcher.toCache(cache);
+        ElemHide.toCache(cache);
+        var cacheFile = Utils.resolveFilePath(Prefs.data_directory);
+        cacheFile.append("cache.js");
+        try {
+          cacheFile.parent.create(Ci.nsIFile.DIRECTORY_TYPE, 493);
+        }
+        catch (e){}
+        try {
+          var fileStream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(Ci.nsIFileOutputStream);
+          fileStream.init(cacheFile, 2 | 8 | 32, 420, 0);
+          var json = Cc["@mozilla.org/dom/json;1"].createInstance(Ci.nsIJSON);
+          if (Utils.versionComparator.compare(Utils.platformVersion, "5.0") >= 0) {
+            json.encodeToStream(fileStream, "UTF-8", false, cache);
+            fileStream.close();
+          }
+           else {
+            var stream = Cc["@mozilla.org/intl/converter-output-stream;1"].createInstance(Ci.nsIConverterOutputStream);
+            stream.init(fileStream, "UTF-8", 16384, Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);
+            stream.writeString(json.encode(cache));
+            stream.close();
+          }
+        }
+        catch (e){
+          delete FilterStorage.fileProperties.cacheTimestamp;
+          Cu.reportError(e);
+        }
+      }
+  }
+  if (typeof _patchFunc2 != "undefined")
+    eval("(" + _patchFunc2.toString() + ")()");
+  window.FilterListener = FilterListener;
+}
+)(window.FilterListenerPatch);