1 files changed, 79 insertions, 0 deletions
diff --git a/vcl/inc/treeglue.hxx b/vcl/inc/treeglue.hxx
new file mode 100644
index 000000000000..a314c7099e2a
--- /dev/null
+++ b/vcl/inc/treeglue.hxx
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ */
+
+#include <vcl/svtabbx.hxx>
+
+//the default NotifyStartDrag is weird to me, and defaults to enabling all
+//possibilities when drag starts, while restricting it to some subset of
+//the configured drag drop mode would make more sense to me, but I'm not
+//going to change the baseclass
+
+class LclHeaderTabListBox : public SvHeaderTabListBox
+{
+public:
+    LclHeaderTabListBox(vcl::Window* pParent, WinBits nWinStyle)
+        : SvHeaderTabListBox(pParent, nWinStyle)
+    {
+    }
+
+    virtual DragDropMode NotifyStartDrag(TransferDataContainer&, SvTreeListEntry*) override
+    {
+        return GetDragDropMode();
+    }
+};
+
+class LclTabListBox : public SvTabListBox
+{
+    Link<SvTreeListBox*, void> m_aModelChangedHdl;
+
+public:
+    LclTabListBox(vcl::Window* pParent, WinBits nWinStyle)
+        : SvTabListBox(pParent, nWinStyle)
+    {
+    }
+
+    void SetModelChangedHdl(const Link<SvTreeListBox*, void>& rLink) { m_aModelChangedHdl = rLink; }
+
+    virtual DragDropMode NotifyStartDrag(TransferDataContainer&, SvTreeListEntry*) override
+    {
+        return GetDragDropMode();
+    }
+
+    virtual void ModelHasCleared() override
+    {
+        SvTabListBox::ModelHasCleared();
+        m_aModelChangedHdl.Call(this);
+    }
+
+    virtual void ModelHasInserted(SvTreeListEntry* pEntry) override
+    {
+        SvTabListBox::ModelHasInserted(pEntry);
+        m_aModelChangedHdl.Call(this);
+    }
+
+    virtual void ModelHasInsertedTree(SvTreeListEntry* pEntry) override
+    {
+        SvTabListBox::ModelHasInsertedTree(pEntry);
+        m_aModelChangedHdl.Call(this);
+    }
+
+    virtual void ModelHasMoved(SvTreeListEntry* pSource) override
+    {
+        SvTabListBox::ModelHasMoved(pSource);
+        m_aModelChangedHdl.Call(this);
+    }
+
+    virtual void ModelHasRemoved(SvTreeListEntry* pEntry) override
+    {
+        SvTabListBox::ModelHasRemoved(pEntry);
+        m_aModelChangedHdl.Call(this);
+    }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */