1 files changed, 73 insertions, 0 deletions
diff --git a/mailnews/base/util/nsMsgTxn.h b/mailnews/base/util/nsMsgTxn.h
new file mode 100644
index 000000000..5c34de4d4
--- /dev/null
+++ b/mailnews/base/util/nsMsgTxn.h
@@ -0,0 +1,73 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 nsMsgTxn_h__
+#define nsMsgTxn_h__
+
+#include "mozilla/Attributes.h"
+#include "nsITransaction.h"
+#include "msgCore.h"
+#include "nsCOMPtr.h"
+#include "nsIMsgWindow.h"
+#include "nsInterfaceHashtable.h"
+#include "MailNewsTypes2.h"
+#include "nsIVariant.h"
+#include "nsIWritablePropertyBag.h"
+#include "nsIWritablePropertyBag2.h"
+
+#define NS_MESSAGETRANSACTION_IID \
+{ /* da621b30-1efc-11d3-abe4-00805f8ac968 */ \
+    0xda621b30, 0x1efc, 0x11d3, \
+  { 0xab, 0xe4, 0x00, 0x80, 0x5f, 0x8a, 0xc9, 0x68 } }
+/**
+ * base class for all message undo/redo transactions.
+ */
+
+#undef  IMETHOD_VISIBILITY
+#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT
+
+class NS_MSG_BASE nsMsgTxn : public nsITransaction, 
+                             public nsIWritablePropertyBag,
+                             public nsIWritablePropertyBag2
+{
+public:
+    nsMsgTxn();
+
+    nsresult Init();
+
+    NS_IMETHOD DoTransaction(void) override;
+
+    NS_IMETHOD UndoTransaction(void) override = 0;
+
+    NS_IMETHOD RedoTransaction(void) override = 0;
+    
+    NS_IMETHOD GetIsTransient(bool *aIsTransient) override;
+
+    NS_IMETHOD Merge(nsITransaction *aTransaction, bool *aDidMerge) override;
+
+    nsresult GetMsgWindow(nsIMsgWindow **msgWindow);
+    nsresult SetMsgWindow(nsIMsgWindow *msgWindow);
+    nsresult SetTransactionType(uint32_t txnType);
+ 
+    NS_DECL_THREADSAFE_ISUPPORTS
+    NS_DECL_NSIPROPERTYBAG
+    NS_DECL_NSIPROPERTYBAG2
+    NS_DECL_NSIWRITABLEPROPERTYBAG
+    NS_DECL_NSIWRITABLEPROPERTYBAG2
+
+protected:
+    virtual ~nsMsgTxn();
+
+    // a hash table of string -> nsIVariant
+    nsInterfaceHashtable<nsStringHashKey, nsIVariant> mPropertyHash;
+    nsCOMPtr<nsIMsgWindow> m_msgWindow;
+    uint32_t m_txnType;
+    nsresult CheckForToggleDelete(nsIMsgFolder *aFolder, const nsMsgKey &aMsgKey, bool *aResult);
+};
+
+#undef  IMETHOD_VISIBILITY
+#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
+
+#endif