diff -r 000000000000 -r 6474c204b198 editor/libeditor/base/nsEditRules.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/editor/libeditor/base/nsEditRules.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsEditRules_h__
+#define nsEditRules_h__
+
+#define NS_IEDITRULES_IID \
+{ 0x3836386d, 0x806a, 0x488d, \
+  { 0x8b, 0xab, 0xaf, 0x42, 0xbb, 0x4c, 0x90, 0x66 } }
+
+#include "nsEditor.h"
+
+class nsPlaintextEditor;
+class nsISelection;
+
+/***************************************************************************
+ * base for an object to encapsulate any additional info needed to be passed
+ * to rules system by the editor
+ */
+class nsRulesInfo
+{
+  public:
+  
+  nsRulesInfo(EditAction aAction) : action(aAction) {}
+  virtual ~nsRulesInfo() {}
+  
+  EditAction action;
+};
+
+/***************************************************************************
+ * Interface of editing rules.
+ *  
+ */
+class nsIEditRules : public nsISupports
+{
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IEDITRULES_IID)
+  
+//Interfaces for addref and release and queryinterface
+//NOTE: Use   NS_DECL_ISUPPORTS_INHERITED in any class inherited from nsIEditRules
+
+  NS_IMETHOD Init(nsPlaintextEditor *aEditor)=0;
+  NS_IMETHOD SetInitialValue(const nsAString& aValue) = 0;
+  NS_IMETHOD DetachEditor()=0;
+  NS_IMETHOD BeforeEdit(EditAction action,
+                        nsIEditor::EDirection aDirection) = 0;
+  NS_IMETHOD AfterEdit(EditAction action,
+                       nsIEditor::EDirection aDirection) = 0;
+  NS_IMETHOD WillDoAction(mozilla::dom::Selection* aSelection, nsRulesInfo* aInfo,
+                          bool* aCancel, bool* aHandled) = 0;
+  NS_IMETHOD DidDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult)=0;
+  NS_IMETHOD DocumentIsEmpty(bool *aDocumentIsEmpty)=0;
+  NS_IMETHOD DocumentModified()=0;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsIEditRules, NS_IEDITRULES_IID)
+
+#endif //nsEditRules_h__
+