move various notebookbar widgets into vcl

and we can drop their factories then

Change-Id: I1e261886dd7700710ba628da4bbeeba65efa1531
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/107134
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

16 files changed, 964 insertions, 8 deletions

diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index efddab108293..927954e7b49b 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -184,6 +184,8 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
     vcl/source/control/calendar \
     vcl/source/control/combobox \
     vcl/source/control/ctrl \
+    vcl/source/control/ContextVBox \
+    vcl/source/control/DropdownBox \
     vcl/source/control/edit \
     vcl/source/control/field2 \
     vcl/source/control/field \
@@ -201,6 +203,9 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
     vcl/source/control/listbox \
 	vcl/source/control/managedmenubutton \
     vcl/source/control/menubtn \
+    vcl/source/control/NotebookbarPopup \
+    vcl/source/control/PriorityHBox \
+    vcl/source/control/PriorityMergedHBox \
     vcl/source/control/notebookbar \
     vcl/source/control/WeldedTabbedNotebookbar \
     vcl/source/control/quickselectionengine \
diff --git a/vcl/inc/ContextVBox.hxx b/vcl/inc/ContextVBox.hxx
new file mode 100644
index 000000000000..1dc31656adb7
--- /dev/null
+++ b/vcl/inc/ContextVBox.hxx
@@ -0,0 +1,38 @@
+/* -*- 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 <sal/config.h>
+
+#include <vcl/NotebookbarContextControl.hxx>
+#include <vcl/layout.hxx>
+
+/*
+ * ContextVBox is a VclVBox which shows own children depending on current context.
+ * This control can be used in the notebookbar .ui files
+ */
+
+class ContextVBox : public VclVBox, public NotebookbarContextControl
+{
+public:
+    explicit ContextVBox(vcl::Window* pParent);
+    virtual ~ContextVBox() override;
+    void SetContext(vcl::EnumContext::Context eContext) override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/DropdownBox.hxx b/vcl/inc/DropdownBox.hxx
new file mode 100644
index 000000000000..3aa55b5ef367
--- /dev/null
+++ b/vcl/inc/DropdownBox.hxx
@@ -0,0 +1,49 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SFX2_NOTEBOOKBAR_DROPDOWNBOX_HXX
+#define INCLUDED_SFX2_NOTEBOOKBAR_DROPDOWNBOX_HXX
+
+#include <vcl/notebookbar/IPrioritable.hxx>
+#include <vcl/notebookbar/NotebookbarPopup.hxx>
+#include <vcl/layout.hxx>
+
+class DropdownBox : public VclHBox, public vcl::IPrioritable
+{
+private:
+    bool m_bInFullView;
+    VclPtr<PushButton> m_pButton;
+    VclPtr<NotebookbarPopup> m_pPopup;
+
+public:
+    explicit DropdownBox(vcl::Window* pParent);
+    virtual ~DropdownBox() override;
+    virtual void dispose() override;
+
+    void HideContent() override;
+    void ShowContent() override;
+    bool IsHidden() override;
+
+private:
+    DECL_LINK(PBClickHdl, Button*, void);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/OptionalBox.hxx b/vcl/inc/OptionalBox.hxx
index 326fc7536c2d..54c7b720508b 100644
--- a/vcl/inc/OptionalBox.hxx
+++ b/vcl/inc/OptionalBox.hxx
@@ -20,7 +20,7 @@
 #ifndef INCLUDED_VCL_OPTIONALBOX_HXX
 #define INCLUDED_VCL_OPTIONALBOX_HXX
 
-#include <vcl/IPrioritable.hxx>
+#include <vcl/notebookbar/IPrioritable.hxx>
 #include <vcl/layout.hxx>
 
 class OptionalBox final : public VclHBox, public vcl::IPrioritable
diff --git a/vcl/inc/PriorityHBox.hxx b/vcl/inc/PriorityHBox.hxx
new file mode 100644
index 000000000000..e3e8c4c19b9c
--- /dev/null
+++ b/vcl/inc/PriorityHBox.hxx
@@ -0,0 +1,63 @@
+/* -*- 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/notebookbar/IPrioritable.hxx>
+#include <vcl/layout.hxx>
+
+#include <vector>
+
+#ifndef INCLUDED_SFX2_NOTEBOOKBAR_PRIORITYHBOX_HXX
+#define INCLUDED_SFX2_NOTEBOOKBAR_PRIORITYHBOX_HXX
+
+/*
+ * PriorityHBox is a VclHBox which hides its own children if there is no sufficient space.
+ * Hiding order can be modified using child's priorities. If a control have default
+ * priority assigned (VCL_PRIORITY_DEFAULT), it is always shown.
+ */
+
+class PriorityHBox : public VclHBox
+{
+protected:
+    bool m_bInitialized;
+
+    std::vector<vcl::IPrioritable*> m_aSortedChildren;
+
+    virtual int GetHiddenCount() const;
+
+    virtual void GetChildrenWithPriorities();
+
+public:
+    explicit PriorityHBox(vcl::Window* pParent);
+
+    virtual ~PriorityHBox() override;
+
+    void Initialize();
+
+    void SetSizeFromParent();
+
+    virtual Size calculateRequisition() const override;
+
+    virtual void Resize() override;
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/PriorityMergedHBox.hxx b/vcl/inc/PriorityMergedHBox.hxx
new file mode 100644
index 000000000000..15972d2d7531
--- /dev/null
+++ b/vcl/inc/PriorityMergedHBox.hxx
@@ -0,0 +1,49 @@
+/* -*- 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/toolkit/button.hxx>
+#include <vcl/layout.hxx>
+#include "PriorityHBox.hxx"
+#include <vcl/notebookbar/NotebookbarPopup.hxx>
+
+class PriorityMergedHBox : public PriorityHBox
+{
+private:
+    VclPtr<PushButton> m_pButton;
+    VclPtr<NotebookbarPopup> m_pPopup;
+
+    DECL_LINK(PBClickHdl, Button*, void);
+
+public:
+    explicit PriorityMergedHBox(vcl::Window* pParent);
+
+    virtual ~PriorityMergedHBox() override { disposeOnce(); }
+
+    virtual void Resize() override;
+
+    virtual void dispose() override;
+
+    int GetHiddenCount() const override;
+
+    Size calculateRequisition() const override;
+
+    void GetChildrenWithPriorities() override{};
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/brdwin.hxx b/vcl/inc/brdwin.hxx
index b32fd963fb57..deb2cdd182a8 100644
--- a/vcl/inc/brdwin.hxx
+++ b/vcl/inc/brdwin.hxx
@@ -20,10 +20,10 @@
 #ifndef INCLUDED_VCL_INC_BRDWIN_HXX
 #define INCLUDED_VCL_INC_BRDWIN_HXX
 
-#include <vcl/notebookbar.hxx>
+#include <vcl/notebookbar/notebookbar.hxx>
 #include <vcl/window.hxx>
 #include <o3tl/typed_flags_set.hxx>
-#include <vcl/NotebookBarAddonsMerger.hxx>
+#include <vcl/notebookbar/NotebookBarAddonsMerger.hxx>
 
 #include <com/sun/star/frame/XFrame.hpp>
 
diff --git a/vcl/source/control/ContextVBox.cxx b/vcl/source/control/ContextVBox.cxx
new file mode 100644
index 000000000000..94090d5cd680
--- /dev/null
+++ b/vcl/source/control/ContextVBox.cxx
@@ -0,0 +1,62 @@
+/* -*- 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 <sal/config.h>
+
+#include <vcl/NotebookbarContextControl.hxx>
+#include <ContextVBox.hxx>
+
+ContextVBox::ContextVBox( vcl::Window *pParent )
+    : VclVBox( pParent )
+{
+}
+
+ContextVBox::~ContextVBox()
+{
+    disposeOnce();
+}
+
+void ContextVBox::SetContext( vcl::EnumContext::Context eContext )
+{
+    for (int nChild = 0; nChild < GetChildCount(); ++nChild)
+    {
+        if ( GetChild( nChild )->GetType() == WindowType::CONTAINER )
+        {
+            VclContainer* pChild = static_cast<VclContainer*>( GetChild( nChild ) );
+
+            if ( pChild->HasContext( eContext ) || pChild->HasContext( vcl::EnumContext::Context::Any ) )
+            {
+                Size aSize( pChild->GetOptimalSize() );
+                aSize.AdjustHeight(6 );
+                pChild->Show();
+                pChild->SetSizePixel( aSize );
+            }
+            else
+            {
+                pChild->Hide();
+                pChild->SetSizePixel( Size( 0, 0 ) );
+            }
+        }
+    }
+    Size aSize( GetOptimalSize() );
+    aSize.AdjustWidth(6 );
+    SetSizePixel( aSize );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/DropdownBox.cxx b/vcl/source/control/DropdownBox.cxx
new file mode 100644
index 000000000000..8155a8bac5c9
--- /dev/null
+++ b/vcl/source/control/DropdownBox.cxx
@@ -0,0 +1,116 @@
+/* -*- 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/button.hxx>
+#include <vcl/layout.hxx>
+#include <DropdownBox.hxx>
+
+#define NOTEBOOK_HEADER_HEIGHT 30
+
+/*
+ * DropdownBox - shows content or moves it to the popup
+ * which can be opened by clicking on a button
+ */
+
+DropdownBox::DropdownBox(vcl::Window* pParent)
+    : VclHBox(pParent)
+    , IPrioritable()
+    , m_bInFullView(true)
+{
+    m_pButton = VclPtr<PushButton>::Create(this, WB_FLATBUTTON);
+    m_pButton->SetClickHdl(LINK(this, DropdownBox, PBClickHdl));
+    m_pButton->SetSymbol(SymbolType::MENU);
+    m_pButton->set_width_request(15);
+    m_pButton->SetQuickHelpText(GetQuickHelpText());
+    m_pButton->Resize();
+}
+
+DropdownBox::~DropdownBox() { disposeOnce(); }
+
+void DropdownBox::dispose()
+{
+    m_pButton.disposeAndClear();
+    if (m_pPopup)
+        m_pPopup.disposeAndClear();
+
+    VclHBox::dispose();
+}
+
+void DropdownBox::HideContent()
+{
+    if (m_bInFullView)
+    {
+        m_bInFullView = false;
+
+        for (int i = 0; i < GetChildCount(); i++)
+            GetChild(i)->Hide();
+
+        m_pButton->Show();
+        SetOutputSizePixel(Size(m_pButton->GetSizePixel().Width(), GetSizePixel().Height()));
+    }
+}
+
+bool DropdownBox::IsHidden() { return !m_bInFullView; }
+
+void DropdownBox::ShowContent()
+{
+    if (!m_bInFullView)
+    {
+        m_bInFullView = true;
+
+        for (int i = 0; i < GetChildCount(); i++)
+            GetChild(i)->Show();
+
+        m_pButton->Hide();
+    }
+}
+
+IMPL_LINK(DropdownBox, PBClickHdl, Button*, /*pButton*/, void)
+{
+    if (m_pPopup)
+        m_pPopup.disposeAndClear();
+
+    m_pPopup = VclPtr<NotebookbarPopup>::Create(this);
+
+    for (int i = 0; i < GetChildCount(); i++)
+    {
+        if (GetChild(i) != m_pButton)
+        {
+            Window* pChild = GetChild(i);
+            pChild->Show();
+
+            pChild->SetParent(m_pPopup->getBox());
+            // count is decreased because we moved child
+            i--;
+        }
+    }
+
+    m_pPopup->hideSeparators(true);
+
+    m_pPopup->getBox()->set_height_request(GetSizePixel().Height());
+
+    tools::Long x = GetPosPixel().getX();
+    tools::Long y = GetPosPixel().getY() + NOTEBOOK_HEADER_HEIGHT + GetSizePixel().Height();
+    tools::Rectangle aRect(x, y, x, y);
+
+    m_pPopup->StartPopupMode(aRect, FloatWinPopupFlags::Down | FloatWinPopupFlags::GrabFocus
+                                        | FloatWinPopupFlags::AllMouseButtonClose);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/NotebookbarPopup.cxx b/vcl/source/control/NotebookbarPopup.cxx
new file mode 100644
index 000000000000..a1a3571d2dc0
--- /dev/null
+++ b/vcl/source/control/NotebookbarPopup.cxx
@@ -0,0 +1,159 @@
+/* -*- 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/.
+ */
+
+#include <vcl/notebookbar/NotebookbarPopup.hxx>
+#include <vcl/notebookbar/IPrioritable.hxx>
+#include <vcl/layout.hxx>
+
+NotebookbarPopup::NotebookbarPopup(const VclPtr<VclHBox>& pParent)
+    : FloatingWindow(pParent, "Popup", "sfx/ui/notebookbarpopup.ui")
+    , m_pParent(pParent)
+{
+    get(m_pBox, "box");
+    m_pBox->SetSizePixel(Size(100, 75));
+    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+    const BitmapEx& aPersona = rStyleSettings.GetPersonaHeader();
+
+    if (!aPersona.IsEmpty())
+        m_pBox->SetBackground(Wallpaper(aPersona));
+    else
+        m_pBox->SetBackground(rStyleSettings.GetDialogColor());
+}
+
+NotebookbarPopup::~NotebookbarPopup() { disposeOnce(); }
+
+VclHBox* NotebookbarPopup::getBox() { return m_pBox.get(); }
+
+void NotebookbarPopup::PopupModeEnd()
+{
+    hideSeparators(false);
+    while (m_pBox->GetChildCount())
+    {
+        vcl::IPrioritable* pChild = dynamic_cast<vcl::IPrioritable*>(GetChild(0));
+        if (pChild)
+            pChild->HideContent();
+
+        vcl::Window* pWindow = m_pBox->GetChild(0);
+        pWindow->SetParent(m_pParent);
+
+        // resize after all children of box are empty
+        if (m_pParent && !m_pBox->GetChildCount())
+            m_pParent->Resize();
+    }
+
+    FloatingWindow::PopupModeEnd();
+}
+
+void NotebookbarPopup::hideSeparators(bool bHide)
+{
+    // separator on the beginning
+    vcl::Window* pWindow = m_pBox->GetChild(0);
+    while (pWindow && pWindow->GetType() == WindowType::CONTAINER)
+    {
+        pWindow = pWindow->GetChild(0);
+    }
+    if (pWindow && pWindow->GetType() == WindowType::FIXEDLINE)
+    {
+        if (bHide)
+            pWindow->Hide();
+        else
+            pWindow->Show();
+    }
+
+    // separator on the end
+    pWindow = m_pBox->GetChild(m_pBox->GetChildCount() - 1);
+    while (pWindow && pWindow->GetType() == WindowType::CONTAINER)
+    {
+        pWindow = pWindow->GetChild(pWindow->GetChildCount() - 1);
+    }
+    if (pWindow && pWindow->GetType() == WindowType::FIXEDLINE)
+    {
+        if (bHide)
+            pWindow->Hide();
+        else
+            pWindow->Show();
+    }
+
+    if (bHide)
+    {
+        sal_Int32 BoxId = 0;
+        while (BoxId <= m_pBox->GetChildCount() - 1)
+        {
+            if (m_pBox->GetChild(BoxId))
+            {
+                pWindow = m_pBox->GetChild(BoxId);
+                ApplyBackground(pWindow);
+            }
+            BoxId++;
+        }
+    }
+    else
+    {
+        sal_Int32 BoxId = m_pBox->GetChildCount() - 1;
+        while (BoxId >= 0)
+        {
+            if (m_pBox->GetChild(BoxId))
+            {
+                pWindow = m_pBox->GetChild(BoxId);
+                RemoveBackground(pWindow);
+            }
+            BoxId--;
+        }
+    }
+}
+
+void NotebookbarPopup::dispose()
+{
+    PopupModeEnd();
+    m_pBox.disposeAndClear();
+    m_pParent.clear();
+
+    FloatingWindow::dispose();
+}
+
+void NotebookbarPopup::ApplyBackground(vcl::Window* pWindow)
+{
+    const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
+    const BitmapEx& aPersona = rStyleSettings.GetPersonaHeader();
+
+    if (!aPersona.IsEmpty())
+        pWindow->SetBackground(Wallpaper(aPersona));
+    else
+        pWindow->SetBackground(rStyleSettings.GetDialogColor());
+
+    sal_Int32 nNext = 0;
+    VclPtr<vcl::Window> pChild = pWindow->GetChild(nNext);
+    while (pChild && pWindow->GetType() == WindowType::CONTAINER)
+    {
+        ApplyBackground(pChild);
+        nNext++;
+        if (pWindow->GetChild(nNext) && pWindow->GetType() == WindowType::CONTAINER)
+            pChild = pWindow->GetChild(nNext);
+        else
+            break;
+    }
+}
+
+void NotebookbarPopup::RemoveBackground(vcl::Window* pWindow)
+{
+    pWindow->SetBackground(Wallpaper(COL_TRANSPARENT));
+
+    sal_Int32 nNext = 0;
+    VclPtr<vcl::Window> pChild = pWindow->GetChild(nNext);
+    while (pChild && pWindow->GetType() == WindowType::CONTAINER)
+    {
+        RemoveBackground(pChild);
+        nNext++;
+        if (pWindow->GetChild(nNext) && pWindow->GetType() == WindowType::CONTAINER)
+            pChild = pWindow->GetChild(nNext);
+        else
+            break;
+    }
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/PriorityHBox.cxx b/vcl/source/control/PriorityHBox.cxx
new file mode 100644
index 000000000000..cb3219bf5a5c
--- /dev/null
+++ b/vcl/source/control/PriorityHBox.cxx
@@ -0,0 +1,197 @@
+/* -*- 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/layout.hxx>
+#include <PriorityHBox.hxx>
+#include <comphelper/lok.hxx>
+
+namespace
+{
+bool lcl_comparePriority(const vcl::IPrioritable* a, const vcl::IPrioritable* b)
+{
+    return a->GetPriority() < b->GetPriority();
+}
+}
+
+PriorityHBox::PriorityHBox(vcl::Window* pParent)
+    : VclHBox(pParent)
+    , m_bInitialized(false)
+{
+}
+
+PriorityHBox::~PriorityHBox() { disposeOnce(); }
+
+void PriorityHBox::Initialize()
+{
+    m_bInitialized = true;
+
+    GetChildrenWithPriorities();
+    SetSizeFromParent();
+}
+
+int PriorityHBox::GetHiddenCount() const
+{
+    int nCount = 0;
+
+    for (auto pWindow : m_aSortedChildren)
+        if (pWindow->IsHidden())
+            nCount++;
+
+    return nCount;
+}
+
+void PriorityHBox::SetSizeFromParent()
+{
+    vcl::Window* pParent = GetParent();
+    if (pParent)
+    {
+        Size aParentSize = pParent->GetSizePixel();
+        SetSizePixel(Size(aParentSize.getWidth(), aParentSize.getHeight()));
+    }
+}
+
+Size PriorityHBox::calculateRequisition() const
+{
+    if (!m_bInitialized)
+    {
+        return VclHBox::calculateRequisition();
+    }
+
+    sal_uInt16 nVisibleChildren = 0;
+
+    Size aSize;
+    for (vcl::Window* pChild = GetWindow(GetWindowType::FirstChild); pChild;
+         pChild = pChild->GetWindow(GetWindowType::Next))
+    {
+        if (!pChild->IsVisible())
+            continue;
+        ++nVisibleChildren;
+        Size aChildSize = getLayoutRequisition(*pChild);
+
+        bool bAlwaysExpanded = true;
+
+        vcl::IPrioritable* pPrioritable = dynamic_cast<vcl::IPrioritable*>(pChild);
+        if (pPrioritable && pPrioritable->GetPriority() != VCL_PRIORITY_DEFAULT)
+            bAlwaysExpanded = false;
+
+        if (bAlwaysExpanded)
+        {
+            tools::Long nPrimaryDimension = getPrimaryDimension(aChildSize);
+            nPrimaryDimension += pChild->get_padding() * 2;
+            setPrimaryDimension(aChildSize, nPrimaryDimension);
+        }
+        else
+            setPrimaryDimension(aChildSize, 0);
+
+        accumulateMaxes(aChildSize, aSize);
+    }
+
+    return finalizeMaxes(aSize, nVisibleChildren);
+}
+
+void PriorityHBox::Resize()
+{
+    if (!m_bInitialized)
+        Initialize();
+
+    if (!m_bInitialized || comphelper::LibreOfficeKit::isActive())
+    {
+        return VclHBox::Resize();
+    }
+
+    tools::Long nWidth = GetSizePixel().Width();
+    tools::Long nCurrentWidth = VclHBox::calculateRequisition().getWidth();
+
+    // Hide lower priority controls
+    for (vcl::IPrioritable* pPrioritable : m_aSortedChildren)
+    {
+        if (nCurrentWidth <= nWidth)
+            break;
+
+        vcl::Window* pWindow = dynamic_cast<vcl::Window*>(pPrioritable);
+
+        if (pWindow && pWindow->GetParent() == this)
+        {
+            nCurrentWidth -= pWindow->GetOutputWidthPixel() + get_spacing();
+            pWindow->Show();
+            pPrioritable->HideContent();
+            nCurrentWidth += pWindow->GetOutputWidthPixel() + get_spacing();
+        }
+    }
+
+    auto pChildR = m_aSortedChildren.rbegin();
+    // Show higher priority controls if we already have enough space
+    while (pChildR != m_aSortedChildren.rend())
+    {
+        vcl::Window* pWindow = dynamic_cast<vcl::Window*>(*pChildR);
+        vcl::IPrioritable* pPrioritable = *pChildR;
+
+        if (pWindow->GetParent() != this)
+        {
+            pChildR++;
+            continue;
+        }
+
+        if (pWindow)
+        {
+            nCurrentWidth -= pWindow->GetOutputWidthPixel() + get_spacing();
+            pWindow->Show();
+            pPrioritable->ShowContent();
+            nCurrentWidth += getLayoutRequisition(*pWindow).Width() + get_spacing();
+
+            if (nCurrentWidth > nWidth)
+            {
+                pPrioritable->HideContent();
+                break;
+            }
+        }
+
+        pChildR++;
+    }
+
+    VclHBox::Resize();
+}
+
+void PriorityHBox::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
+{
+    if (!m_bInitialized)
+        Initialize();
+
+    VclHBox::Paint(rRenderContext, rRect);
+}
+
+void PriorityHBox::GetChildrenWithPriorities()
+{
+    for (sal_uInt16 i = 0; i < GetChildCount(); ++i)
+    {
+        vcl::Window* pChild = GetChild(i);
+
+        // Add only containers which have explicitly assigned priority.
+        vcl::IPrioritable* pPrioritable = dynamic_cast<vcl::IPrioritable*>(pChild);
+        if (pPrioritable && pPrioritable->GetPriority() != VCL_PRIORITY_DEFAULT)
+            m_aSortedChildren.push_back(pPrioritable);
+    }
+
+    if (m_aSortedChildren.empty())
+        m_bInitialized = false;
+
+    std::sort(m_aSortedChildren.begin(), m_aSortedChildren.end(), lcl_comparePriority);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/PriorityMergedHBox.cxx b/vcl/source/control/PriorityMergedHBox.cxx
new file mode 100644
index 000000000000..be89d8f35cf5
--- /dev/null
+++ b/vcl/source/control/PriorityMergedHBox.cxx
@@ -0,0 +1,194 @@
+/* -*- 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/button.hxx>
+#include <vcl/layout.hxx>
+#include <bitmaps.hlst>
+#include <PriorityHBox.hxx>
+#include <PriorityMergedHBox.hxx>
+#include <vcl/notebookbar/NotebookbarPopup.hxx>
+#include <comphelper/lok.hxx>
+
+#define DUMMY_WIDTH 50
+#define BUTTON_WIDTH 30
+
+/*
+* PriorityMergedHBox is a VclHBox which hides its own children if there is no sufficient space.
+*/
+
+PriorityMergedHBox::PriorityMergedHBox(vcl::Window* pParent)
+    : PriorityHBox(pParent)
+{
+    m_pButton = VclPtr<PushButton>::Create(this, WB_FLATBUTTON);
+    m_pButton->SetClickHdl(LINK(this, PriorityMergedHBox, PBClickHdl));
+    m_pButton->SetModeImage(Image(StockImage::Yes, CHEVRON));
+    m_pButton->set_width_request(25);
+    m_pButton->set_pack_type(VclPackType::End);
+    m_pButton->Show();
+}
+
+void PriorityMergedHBox::Resize()
+{
+    if (comphelper::LibreOfficeKit::isActive())
+        return VclHBox::Resize();
+
+    if (!m_bInitialized)
+        Initialize();
+
+    if (!m_bInitialized)
+    {
+        return VclHBox::Resize();
+    }
+
+    tools::Long nWidth = GetSizePixel().Width();
+    tools::Long nCurrentWidth = VclHBox::calculateRequisition().getWidth() + BUTTON_WIDTH;
+
+    // Hide lower priority controls
+    for (int i = GetChildCount() - 1; i >= 0; i--)
+    {
+        vcl::Window* pWindow = GetChild(i);
+
+        if (nCurrentWidth <= nWidth)
+            break;
+
+        if (pWindow && pWindow->GetParent() == this && pWindow->IsVisible())
+        {
+            if (pWindow->GetOutputWidthPixel())
+                nCurrentWidth -= pWindow->GetOutputWidthPixel();
+            else
+                nCurrentWidth -= DUMMY_WIDTH;
+            pWindow->Hide();
+        }
+    }
+
+    // Show higher priority controls if we already have enough space
+    for (int i = 0; i < GetChildCount(); i++)
+    {
+        vcl::Window* pWindow = GetChild(i);
+
+        if (pWindow->GetParent() != this)
+        {
+            continue;
+        }
+
+        if (pWindow && !pWindow->IsVisible())
+        {
+            pWindow->Show();
+            nCurrentWidth += getLayoutRequisition(*pWindow).Width() + get_spacing();
+
+            if (nCurrentWidth > nWidth)
+            {
+                pWindow->Hide();
+                break;
+            }
+        }
+    }
+
+    VclHBox::Resize();
+
+    if (GetHiddenCount())
+        m_pButton->Show();
+    else
+        m_pButton->Hide();
+}
+
+void PriorityMergedHBox::dispose()
+{
+    m_pButton.disposeAndClear();
+    if (m_pPopup)
+        m_pPopup.disposeAndClear();
+    PriorityHBox::dispose();
+}
+
+int PriorityMergedHBox::GetHiddenCount() const
+{
+    int nCount = 0;
+
+    for (int i = GetChildCount() - 1; i >= 0; i--)
+    {
+        vcl::Window* pWindow = GetChild(i);
+        if (pWindow && pWindow->GetParent() == this && !pWindow->IsVisible())
+            nCount++;
+    }
+
+    return nCount;
+}
+
+Size PriorityMergedHBox::calculateRequisition() const
+{
+    if (!m_bInitialized)
+    {
+        return VclHBox::calculateRequisition();
+    }
+
+    sal_uInt16 nVisibleChildren = 0;
+
+    Size aSize;
+    for (vcl::Window* pChild = GetWindow(GetWindowType::FirstChild); pChild;
+         pChild = pChild->GetWindow(GetWindowType::Next))
+    {
+        if (!pChild->IsVisible())
+            continue;
+        ++nVisibleChildren;
+        Size aChildSize = getLayoutRequisition(*pChild);
+
+        tools::Long nPrimaryDimension = getPrimaryDimension(aChildSize);
+        nPrimaryDimension += pChild->get_padding() * 2;
+        setPrimaryDimension(aChildSize, nPrimaryDimension);
+
+        accumulateMaxes(aChildSize, aSize);
+    }
+
+    setPrimaryDimension(aSize, 200);
+    return finalizeMaxes(aSize, nVisibleChildren);
+}
+
+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)
+        {
+            if (!pWindow->IsVisible())
+            {
+                pWindow->Show();
+                pWindow->SetParent(m_pPopup->getBox());
+                // count is decreased because we moved child
+                i--;
+            }
+        }
+    }
+
+    m_pPopup->hideSeparators(true);
+
+    tools::Long x = m_pButton->GetPosPixel().getX();
+    tools::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);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/control/notebookbar.cxx b/vcl/source/control/notebookbar.cxx
index 64686e1729b5..8feb96ee51fd 100644
--- a/vcl/source/control/notebookbar.cxx
+++ b/vcl/source/control/notebookbar.cxx
@@ -8,7 +8,7 @@
  */
 
 #include <vcl/layout.hxx>
-#include <vcl/notebookbar.hxx>
+#include <vcl/notebookbar/notebookbar.hxx>
 #include <vcl/syswin.hxx>
 #include <vcl/taskpanelist.hxx>
 #include <vcl/NotebookbarContextControl.hxx>
diff --git a/vcl/source/control/tabctrl.cxx b/vcl/source/control/tabctrl.cxx
index faeb70ecd4e1..dee5e226452c 100644
--- a/vcl/source/control/tabctrl.cxx
+++ b/vcl/source/control/tabctrl.cxx
@@ -20,7 +20,7 @@
 #include <sal/config.h>
 #include <sal/log.hxx>
 
-#include <vcl/notebookbar.hxx>
+#include <vcl/notebookbar/notebookbar.hxx>
 #include <vcl/svapp.hxx>
 #include <vcl/help.hxx>
 #include <vcl/event.hxx>
diff --git a/vcl/source/window/NotebookBarAddonsMerger.cxx b/vcl/source/window/NotebookBarAddonsMerger.cxx
index 1bbbc66b9452..b2e3d4649939 100644
--- a/vcl/source/window/NotebookBarAddonsMerger.cxx
+++ b/vcl/source/window/NotebookBarAddonsMerger.cxx
@@ -21,11 +21,11 @@
 
 #include <cstddef>
 
-#include <vcl/NotebookBarAddonsMerger.hxx>
+#include <vcl/notebookbar/IPrioritable.hxx>
+#include <vcl/notebookbar/NotebookBarAddonsMerger.hxx>
 #include <vcl/commandinfoprovider.hxx>
 #include <vcl/vclenum.hxx>
 #include <vcl/toolbox.hxx>
-#include <vcl/IPrioritable.hxx>
 #include <OptionalBox.hxx>
 
 const char STYLE_TEXT[] = "Text";
diff --git a/vcl/source/window/builder.cxx b/vcl/source/window/builder.cxx
index 4c264b3e4bfe..4d252f579adf 100644
--- a/vcl/source/window/builder.cxx
+++ b/vcl/source/window/builder.cxx
@@ -32,7 +32,7 @@
 #include <vcl/toolkit/fixed.hxx>
 #include <vcl/toolkit/fixedhyper.hxx>
 #include <vcl/headbar.hxx>
-#include <vcl/IPrioritable.hxx>
+#include <vcl/notebookbar/IPrioritable.hxx>
 #include <vcl/toolkit/ivctrl.hxx>
 #include <vcl/layout.hxx>
 #include <vcl/toolkit/lstbox.hxx>
@@ -59,7 +59,11 @@
 #include <bitmaps.hlst>
 #include <managedmenubutton.hxx>
 #include <messagedialog.hxx>
+#include <ContextVBox.hxx>
+#include <DropdownBox.hxx>
 #include <OptionalBox.hxx>
+#include <PriorityMergedHBox.hxx>
+#include <PriorityHBox.hxx>
 #include <window.h>
 #include <xmlreader/xmlreader.hxx>
 #include <desktop/crashreport.hxx>
@@ -1979,6 +1983,26 @@ VclPtr<vcl::Window> VclBuilder::makeObject(vcl::Window *pParent, const OString &
             m_pParserState->m_aButtonMenuMaps.emplace_back(id, sMenu);
         setupFromActionName(static_cast<Button*>(xWindow.get()), rMap, m_xFrame);
     }
+    else if (name == "sfxlo-PriorityMergedHBox")
+    {
+        // like tdf#135495 above, keep the sfxlo-PriorityMergedHBox even though its not in sfx anymore
+        xWindow = VclPtr<PriorityMergedHBox>::Create(pParent);
+    }
+    else if (name == "sfxlo-PriorityHBox")
+    {
+        // like tdf#135495 above, keep the sfxlo-PriorityMergedHBox even though its not in sfx anymore
+        xWindow = VclPtr<PriorityHBox>::Create(pParent);
+    }
+    else if (name == "sfxlo-DropdownBox")
+    {
+        // like tdf#135495 above, keep the sfxlo-PriorityMergedHBox even though its not in sfx anymore
+        xWindow = VclPtr<DropdownBox>::Create(pParent);
+    }
+    else if (name == "sfxlo-ContextVBox")
+    {
+        // like tdf#135495 above, keep the sfxlo-PriorityMergedHBox even though its not in sfx anymore
+        xWindow = VclPtr<ContextVBox>::Create(pParent);
+    }
     else if (name == "GtkIconView")
     {
         assert(rMap.find(OString("model")) != rMap.end() && "GtkIconView must have a model");