import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

editor/libeditor/DeleteNodeTransaction.h

@@ -0,0 +1,66 @@
+/* -*- 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 DeleteNodeTransaction_h
+#define DeleteNodeTransaction_h
+
+#include "mozilla/EditTransactionBase.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIContent.h"
+#include "nsINode.h"
+#include "nsISupportsImpl.h"
+#include "nscore.h"
+
+namespace mozilla {
+
+class EditorBase;
+class RangeUpdater;
+
+/**
+ * A transaction that deletes a single element
+ */
+class DeleteNodeTransaction final : public EditTransactionBase
+{
+public:
+  /**
+   * Initialize the transaction.
+   * @param aElement        The node to delete.
+   */
+  nsresult Init(EditorBase* aEditorBase, nsINode* aNode,
+                RangeUpdater* aRangeUpdater);
+
+  DeleteNodeTransaction();
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeleteNodeTransaction,
+                                           EditTransactionBase)
+
+  NS_DECL_EDITTRANSACTIONBASE
+
+  NS_IMETHOD RedoTransaction() override;
+
+protected:
+  virtual ~DeleteNodeTransaction();
+
+  // The element to delete.
+  nsCOMPtr<nsINode> mNode;
+
+  // Parent of node to delete.
+  nsCOMPtr<nsINode> mParent;
+
+  // Next sibling to remember for undo/redo purposes.
+  nsCOMPtr<nsIContent> mRefNode;
+
+  // The editor for this transaction.
+  EditorBase* mEditorBase;
+
+  // Range updater object.
+  RangeUpdater* mRangeUpdater;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef DeleteNodeTransaction_h