1 files changed, 56 insertions, 0 deletions
diff --git a/layout/xul/tree/nsTreeSelection.h b/layout/xul/tree/nsTreeSelection.h
new file mode 100644
index 0000000000..3b0eb6b21e
--- /dev/null
+++ b/layout/xul/tree/nsTreeSelection.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 nsTreeSelection_h__
+#define nsTreeSelection_h__
+
+#include "nsITreeSelection.h"
+#include "nsITimer.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/Attributes.h"
+#include "XULTreeElement.h"
+
+class nsTreeColumn;
+struct nsTreeRange;
+
+class nsTreeSelection final : public nsINativeTreeSelection {
+ public:
+  explicit nsTreeSelection(mozilla::dom::XULTreeElement* aTree);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS(nsTreeSelection)
+  NS_DECL_NSITREESELECTION
+
+  // nsINativeTreeSelection: Untrusted code can use us
+  NS_IMETHOD EnsureNative() override { return NS_OK; }
+
+  friend struct nsTreeRange;
+
+ protected:
+  ~nsTreeSelection();
+
+  nsresult FireOnSelectHandler();
+  static void SelectCallback(nsITimer* aTimer, void* aClosure);
+
+ protected:
+  // The tree will hold on to us through the view and let go when it dies.
+  RefPtr<mozilla::dom::XULTreeElement> mTree;
+
+  bool mSuppressed;       // Whether or not we should be firing onselect events.
+  int32_t mCurrentIndex;  // The item to draw the rect around. The last one
+                          // clicked, etc.
+  int32_t mShiftSelectPivot;  // Used when multiple SHIFT+selects are performed
+                              // to pivot on.
+
+  nsTreeRange* mFirstRange;  // Our list of ranges.
+
+  nsCOMPtr<nsITimer> mSelectTimer;
+};
+
+nsresult NS_NewTreeSelection(mozilla::dom::XULTreeElement* aTree,
+                             nsITreeSelection** aResult);
+
+#endif