1 files changed, 111 insertions, 0 deletions
diff --git a/sfx2/source/notebookbar/PriorityMergedHBox.cxx b/sfx2/source/notebookbar/PriorityMergedHBox.cxx
new file mode 100644
index 000000000000..e52c467b6c23
--- /dev/null
+++ b/sfx2/source/notebookbar/PriorityMergedHBox.cxx
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+* 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/.
+*
+* This file incorporates work covered by the following license notice:
+*
+*   Licensed to the Apache Software Foundation (ASF) under one or more
+*   contributor license agreements. See the NOTICE file distributed
+*   with this work for additional information regarding copyright
+*   ownership. The ASF licenses this file to you under the Apache
+*   License, Version 2.0 (the "License"); you may not use this file
+*   except in compliance with the License. You may obtain a copy of
+*   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+*/
+
+#include <vcl/builderfactory.hxx>
+#include <vcl/layout.hxx>
+#include <sfx2/dllapi.h>
+#include <sfx2/viewfrm.hxx>
+#include "OptionalBox.hxx"
+#include "PriorityHBox.hxx"
+#include "NotebookbarPopup.hxx"
+
+/*
+* PriorityMergedHBox is a VclHBox which hides its own children if there is no sufficient space.
+*/
+
+class SFX2_DLLPUBLIC PriorityMergedHBox : public PriorityHBox
+{
+private:
+    VclPtr<PushButton> m_pButton;
+    VclPtr<NotebookbarPopup> m_pPopup;
+
+    DECL_LINK(PBClickHdl, Button*, void);
+
+public:
+    explicit PriorityMergedHBox(vcl::Window* pParent)
+        : PriorityHBox(pParent)
+    {
+        m_pButton = VclPtr<PushButton>::Create(this, WB_FLATBUTTON);
+        m_pButton->SetClickHdl(LINK(this, PriorityMergedHBox, PBClickHdl));
+        m_pButton->SetSymbol(SymbolType::NEXT);
+        m_pButton->set_width_request(15);
+        m_pButton->set_pack_type(VclPackType::End);
+        m_pButton->Show();
+    }
+
+    virtual ~PriorityMergedHBox() override { disposeOnce(); }
+
+    virtual void Resize() override
+    {
+        PriorityHBox::Resize();
+        if (GetHiddenCount())
+            m_pButton->Show();
+        else
+            m_pButton->Hide();
+    }
+
+    virtual void dispose() override
+    {
+        m_pButton.disposeAndClear();
+        if (m_pPopup)
+            m_pPopup.disposeAndClear();
+        PriorityHBox::dispose();
+    }
+};
+
+IMPL_LINK(PriorityMergedHBox, PBClickHdl, Button*, /*pButton*/, void)
+{
+    if (m_pPopup)
+        m_pPopup.disposeAndClear();
+
+    m_pPopup = VclPtr<NotebookbarPopup>::Create(this);
+
+    for (int i = 0; i < GetChildCount(); i++)
+    {
+        vcl::Window* pWindow = GetChild(i);
+        if (pWindow != m_pButton)
+        {
+            vcl::IPrioritable* pChild = dynamic_cast<vcl::IPrioritable*>(pWindow);
+
+            if (pChild && pChild->IsHidden())
+            {
+                pChild->ShowContent();
+                pWindow->Show();
+                pWindow->SetParent(m_pPopup->getBox());
+                // count is decreased because we moved child
+                i--;
+            }
+        }
+    }
+
+    m_pPopup->hideSeparators(true);
+
+    m_pPopup->getBox()->set_height_request(GetSizePixel().Height());
+
+    long x = m_pButton->GetPosPixel().getX();
+    long y = m_pButton->GetPosPixel().getY() + GetSizePixel().Height();
+    tools::Rectangle aRect(x, y, x, y);
+
+    m_pPopup->StartPopupMode(aRect, FloatWinPopupFlags::Down | FloatWinPopupFlags::GrabFocus
+                                        | FloatWinPopupFlags::AllMouseButtonClose);
+}
+
+VCL_BUILDER_FACTORY(PriorityMergedHBox)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */