Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 3168 insertions, 0 deletions

diff --git a/vcl/unx/gtk3/fpicker/SalGtkFilePicker.cxx b/vcl/unx/gtk3/fpicker/SalGtkFilePicker.cxx
new file mode 100644
index 000000000..fc990b6fe
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkFilePicker.cxx
@@ -0,0 +1,2087 @@
+/* -*- 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 .
+ */
+
+#ifdef AIX
+#define _LINUX_SOURCE_COMPAT
+#include <sys/timer.h>
+#undef _LINUX_SOURCE_COMPAT
+#endif
+
+#include <config_gio.h>
+
+#include <com/sun/star/awt/SystemDependentXWindow.hpp>
+#include <com/sun/star/awt/Toolkit.hpp>
+#include <com/sun/star/awt/XSystemDependentWindowPeer.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/SystemDependent.hpp>
+#include <com/sun/star/ui/dialogs/ExecutableDialogResults.hpp>
+#include <com/sun/star/ui/dialogs/CommonFilePickerElementIds.hpp>
+#include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>
+#include <osl/diagnose.h>
+#include <rtl/process.h>
+#include <sal/log.hxx>
+#include <com/sun/star/ui/dialogs/TemplateDescription.hpp>
+#include <com/sun/star/ui/dialogs/ControlActions.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <unx/gtk/gtkdata.hxx>
+#include <unx/gtk/gtkinst.hxx>
+
+#include <vcl/svapp.hxx>
+
+#include <o3tl/string_view.hxx>
+#include <tools/urlobj.hxx>
+#include <unotools/ucbhelper.hxx>
+
+#include <algorithm>
+#include <set>
+#include <string.h>
+#include <string_view>
+
+#include "SalGtkFilePicker.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::ui::dialogs;
+using namespace ::com::sun::star::ui::dialogs::TemplateDescription;
+using namespace ::com::sun::star::ui::dialogs::ExtendedFilePickerElementIds;
+using namespace ::com::sun::star::ui::dialogs::CommonFilePickerElementIds;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::uno;
+
+void SalGtkFilePicker::dialog_mapped_cb(GtkWidget *, SalGtkFilePicker *pobjFP)
+{
+    pobjFP->InitialMapping();
+}
+
+void SalGtkFilePicker::InitialMapping()
+{
+    if (!mbPreviewState )
+    {
+        gtk_widget_hide( m_pPreview );
+#if !GTK_CHECK_VERSION(4, 0, 0)
+        gtk_file_chooser_set_preview_widget_active( GTK_FILE_CHOOSER( m_pDialog ), false);
+#endif
+    }
+    gtk_widget_set_size_request (m_pPreview, -1, -1);
+}
+
+SalGtkFilePicker::SalGtkFilePicker( const uno::Reference< uno::XComponentContext >& xContext ) :
+    SalGtkPicker( xContext ),
+    SalGtkFilePicker_Base( m_rbHelperMtx ),
+    m_pVBox ( nullptr ),
+    mnHID_FolderChange( 0 ),
+    mnHID_SelectionChange( 0 ),
+    bVersionWidthUnset( false ),
+    mbPreviewState( false ),
+    mbInitialized(false),
+    mHID_Preview( 0 ),
+    m_pPreview( nullptr ),
+    m_pPseudoFilter( nullptr )
+{
+    int i;
+
+    for( i = 0; i < TOGGLE_LAST; i++ )
+    {
+        m_pToggles[i] = nullptr;
+        mbToggleVisibility[i] = false;
+    }
+
+    for( i = 0; i < BUTTON_LAST; i++ )
+    {
+        m_pButtons[i] = nullptr;
+        mbButtonVisibility[i] = false;
+    }
+
+    for( i = 0; i < LIST_LAST; i++ )
+    {
+        m_pHBoxs[i] = nullptr;
+        m_pLists[i] = nullptr;
+        m_pListLabels[i] = nullptr;
+        mbListVisibility[i] = false;
+    }
+
+    OUString aFilePickerTitle = getResString( FILE_PICKER_TITLE_OPEN );
+
+    m_pDialog = GTK_WIDGET(g_object_new(GTK_TYPE_FILE_CHOOSER_DIALOG,
+                                        "title", OUStringToOString(aFilePickerTitle, RTL_TEXTENCODING_UTF8).getStr(),
+                                        "action", GTK_FILE_CHOOSER_ACTION_OPEN,
+                                        nullptr));
+    gtk_window_set_modal(GTK_WINDOW(m_pDialog), true);
+    gtk_dialog_set_default_response( GTK_DIALOG (m_pDialog), GTK_RESPONSE_ACCEPT );
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+#if ENABLE_GIO
+    gtk_file_chooser_set_local_only( GTK_FILE_CHOOSER( m_pDialog ), false );
+#endif
+#endif
+
+    gtk_file_chooser_set_select_multiple( GTK_FILE_CHOOSER( m_pDialog ), false );
+
+    m_pVBox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+
+    // We don't want clickable items to have a huge hit-area
+    GtkWidget *pHBox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
+    GtkWidget *pThinVBox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_box_pack_end (GTK_BOX( m_pVBox ), pHBox, false, false, 0);
+    gtk_box_pack_start (GTK_BOX( pHBox ), pThinVBox, false, false, 0);
+#else
+    gtk_box_append(GTK_BOX(m_pVBox), pHBox);
+    gtk_box_prepend(GTK_BOX(m_pVBox), pThinVBox);
+#endif
+    gtk_widget_show( pHBox );
+    gtk_widget_show( pThinVBox );
+
+    OUString aLabel;
+
+    for( i = 0; i < TOGGLE_LAST; i++ )
+    {
+        m_pToggles[i] = gtk_check_button_new();
+
+#define LABEL_TOGGLE( elem ) \
+        case elem : \
+            aLabel = getResString( CHECKBOX_##elem ); \
+            setLabel( CHECKBOX_##elem, aLabel ); \
+            break
+
+        switch( i ) {
+        LABEL_TOGGLE( AUTOEXTENSION );
+        LABEL_TOGGLE( PASSWORD );
+        LABEL_TOGGLE( GPGENCRYPTION );
+        LABEL_TOGGLE( FILTEROPTIONS );
+        LABEL_TOGGLE( READONLY );
+        LABEL_TOGGLE( LINK );
+        LABEL_TOGGLE( PREVIEW );
+        LABEL_TOGGLE( SELECTION );
+        default:
+            SAL_WARN( "vcl.gtk", "Handle unknown control " << i);
+            break;
+        }
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+        gtk_box_pack_end( GTK_BOX( pThinVBox ), m_pToggles[i], false, false, 0 );
+#else
+        gtk_box_append(GTK_BOX(pThinVBox), m_pToggles[i]);
+#endif
+    }
+
+    for( i = 0; i < LIST_LAST; i++ )
+    {
+        m_pHBoxs[i] = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
+
+        GtkListStore *pListStores[ LIST_LAST ];
+        pListStores[i] = gtk_list_store_new (1, G_TYPE_STRING);
+        m_pLists[i] = gtk_combo_box_new_with_model(GTK_TREE_MODEL(pListStores[i]));
+        g_object_unref (pListStores[i]); // owned by the widget.
+        GtkCellRenderer *pCell = gtk_cell_renderer_text_new ();
+        gtk_cell_layout_pack_start(
+                GTK_CELL_LAYOUT(m_pLists[i]), pCell, true);
+        gtk_cell_layout_set_attributes(
+            GTK_CELL_LAYOUT (m_pLists[i]), pCell, "text", 0, nullptr);
+
+        m_pListLabels[i] = gtk_label_new( "" );
+
+#define LABEL_LIST( elem ) \
+        case elem : \
+            aLabel = getResString( LISTBOX_##elem##_LABEL ); \
+            setLabel( LISTBOX_##elem##_LABEL, aLabel ); \
+            break
+
+        switch( i )
+        {
+            LABEL_LIST( VERSION );
+            LABEL_LIST( TEMPLATE );
+            LABEL_LIST( IMAGE_TEMPLATE );
+            LABEL_LIST( IMAGE_ANCHOR );
+            default:
+                SAL_WARN( "vcl.gtk", "Handle unknown control " << i);
+                break;
+        }
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+        gtk_box_pack_end( GTK_BOX( m_pHBoxs[i] ), m_pLists[i], false, false, 0 );
+        gtk_box_pack_end( GTK_BOX( m_pHBoxs[i] ), m_pListLabels[i], false, false, 0 );
+#else
+        gtk_box_append(GTK_BOX(m_pHBoxs[i]), m_pLists[i]);
+        gtk_box_append(GTK_BOX(m_pHBoxs[i]), m_pListLabels[i]);
+#endif
+        gtk_label_set_mnemonic_widget( GTK_LABEL(m_pListLabels[i]), m_pLists[i] );
+        gtk_box_set_spacing( GTK_BOX( m_pHBoxs[i] ), 12 );
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+        gtk_box_pack_end( GTK_BOX( m_pVBox ), m_pHBoxs[i], false, false, 0 );
+#else
+        gtk_box_append(GTK_BOX(m_pVBox), m_pHBoxs[i]);
+#endif
+    }
+
+    aLabel = getResString( FILE_PICKER_FILE_TYPE );
+    m_pFilterExpander = gtk_expander_new_with_mnemonic(
+        OUStringToOString( aLabel, RTL_TEXTENCODING_UTF8 ).getStr());
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_box_pack_end( GTK_BOX( m_pVBox ), m_pFilterExpander, false, true, 0 );
+#else
+    gtk_box_append(GTK_BOX(m_pVBox), m_pFilterExpander);
+#endif
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    GtkWidget *scrolled_window = gtk_scrolled_window_new (nullptr, nullptr);
+    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
+        GTK_SHADOW_IN);
+#else
+    GtkWidget *scrolled_window = gtk_scrolled_window_new();
+    gtk_scrolled_window_set_has_frame(GTK_SCROLLED_WINDOW(scrolled_window), true);
+#endif
+    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
+        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_container_add (GTK_CONTAINER (m_pFilterExpander), scrolled_window);
+#else
+    gtk_expander_set_child(GTK_EXPANDER(m_pFilterExpander), scrolled_window);
+#endif
+    gtk_widget_show (scrolled_window);
+
+    m_pFilterStore = gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_STRING,
+        G_TYPE_STRING, G_TYPE_STRING);
+    m_pFilterView = gtk_tree_view_new_with_model (GTK_TREE_MODEL(m_pFilterStore));
+    gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(m_pFilterView), false);
+
+    GtkCellRenderer *cell = nullptr;
+
+    for (i = 0; i < 2; ++i)
+    {
+        GtkTreeViewColumn *column = gtk_tree_view_column_new ();
+        cell = gtk_cell_renderer_text_new ();
+        gtk_tree_view_column_set_expand (column, true);
+        gtk_tree_view_column_pack_start (column, cell, false);
+        gtk_tree_view_column_set_attributes (column, cell, "text", i, nullptr);
+        gtk_tree_view_append_column (GTK_TREE_VIEW(m_pFilterView), column);
+    }
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_container_add (GTK_CONTAINER (scrolled_window), m_pFilterView);
+#else
+    gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scrolled_window), m_pFilterView);
+#endif
+    gtk_widget_show (m_pFilterView);
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_file_chooser_set_extra_widget( GTK_FILE_CHOOSER( m_pDialog ), m_pVBox );
+#endif
+
+    m_pPreview = gtk_image_new();
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_file_chooser_set_preview_widget( GTK_FILE_CHOOSER( m_pDialog ), m_pPreview );
+#endif
+
+    g_signal_connect( G_OBJECT( m_pToggles[PREVIEW] ), "toggled",
+                      G_CALLBACK( preview_toggled_cb ), this );
+    g_signal_connect (gtk_tree_view_get_selection (GTK_TREE_VIEW(m_pFilterView)), "changed",
+                      G_CALLBACK ( type_changed_cb ), this);
+    g_signal_connect( G_OBJECT( m_pDialog ), "notify::filter",
+                      G_CALLBACK( filter_changed_cb ), this);
+    g_signal_connect( G_OBJECT( m_pFilterExpander ), "activate",
+                      G_CALLBACK( expander_changed_cb ), this);
+    g_signal_connect (G_OBJECT( m_pDialog ), "map",
+                      G_CALLBACK (dialog_mapped_cb), this);
+
+    gtk_widget_show( m_pVBox );
+
+    PangoLayout  *layout = gtk_widget_create_pango_layout (m_pFilterView, nullptr);
+    guint ypad;
+    PangoRectangle row_height;
+    pango_layout_set_markup (layout, "All Files", -1);
+    pango_layout_get_pixel_extents (layout, nullptr, &row_height);
+    g_object_unref (layout);
+
+    g_object_get (cell, "ypad", &ypad, nullptr);
+    guint height = (row_height.height + 2*ypad) * 5;
+    gtk_widget_set_size_request (m_pFilterView, -1, height);
+    gtk_widget_set_size_request (m_pPreview, 1, height);
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_file_chooser_set_preview_widget_active( GTK_FILE_CHOOSER( m_pDialog ), true);
+#endif
+}
+
+// XFilePickerNotifier
+
+void SAL_CALL SalGtkFilePicker::addFilePickerListener( const uno::Reference<XFilePickerListener>& xListener )
+{
+    SolarMutexGuard g;
+
+    OSL_ENSURE(!m_xListener.is(),
+            "SalGtkFilePicker only talks with one listener at a time...");
+    m_xListener = xListener;
+}
+
+void SAL_CALL SalGtkFilePicker::removeFilePickerListener( const uno::Reference<XFilePickerListener>& )
+{
+    SolarMutexGuard g;
+
+    m_xListener.clear();
+}
+
+// FilePicker Event functions
+
+void SalGtkFilePicker::impl_fileSelectionChanged( const FilePickerEvent& aEvent )
+{
+    if (m_xListener.is()) m_xListener->fileSelectionChanged( aEvent );
+}
+
+void SalGtkFilePicker::impl_directoryChanged( const FilePickerEvent& aEvent )
+{
+    if (m_xListener.is()) m_xListener->directoryChanged( aEvent );
+}
+
+void SalGtkFilePicker::impl_controlStateChanged( const FilePickerEvent& aEvent )
+{
+    if (m_xListener.is()) m_xListener->controlStateChanged( aEvent );
+}
+
+struct FilterEntry
+{
+protected:
+    OUString     m_sTitle;
+    OUString     m_sFilter;
+
+    css::uno::Sequence< css::beans::StringPair >       m_aSubFilters;
+
+public:
+    FilterEntry( const OUString& _rTitle, const OUString& _rFilter )
+        :m_sTitle( _rTitle )
+        ,m_sFilter( _rFilter )
+    {
+    }
+
+    const OUString& getTitle() const { return m_sTitle; }
+    const OUString& getFilter() const { return m_sFilter; }
+
+    /// determines if the filter has sub filter (i.e., the filter is a filter group in real)
+    bool        hasSubFilters( ) const;
+
+    /** retrieves the filters belonging to the entry
+    */
+    void       getSubFilters( css::uno::Sequence< css::beans::StringPair >& _rSubFilterList );
+
+    // helpers for iterating the sub filters
+    const css::beans::StringPair*   beginSubFilters() const { return m_aSubFilters.begin(); }
+    const css::beans::StringPair*   endSubFilters() const { return m_aSubFilters.end(); }
+};
+
+bool FilterEntry::hasSubFilters() const
+{
+    return m_aSubFilters.hasElements();
+}
+
+void FilterEntry::getSubFilters( css::uno::Sequence< css::beans::StringPair >& _rSubFilterList )
+{
+    _rSubFilterList = m_aSubFilters;
+}
+
+static bool
+isFilterString( std::u16string_view rFilterString, const char *pMatch )
+{
+        sal_Int32 nIndex = 0;
+        bool bIsFilter = true;
+
+        OUString aMatch(OUString::createFromAscii(pMatch));
+
+        do
+        {
+            std::u16string_view aToken = o3tl::getToken(rFilterString, 0, ';', nIndex );
+            if( !o3tl::starts_with(aToken, aMatch) )
+            {
+                bIsFilter = false;
+                break;
+            }
+        }
+        while( nIndex >= 0 );
+
+        return bIsFilter;
+}
+
+static OUString
+shrinkFilterName( const OUString &rFilterName, bool bAllowNoStar = false )
+{
+    int i;
+    int nBracketLen = -1;
+    int nBracketEnd = -1;
+    const sal_Unicode *pStr = rFilterName.getStr();
+    OUString aRealName = rFilterName;
+
+    for( i = aRealName.getLength() - 1; i > 0; i-- )
+    {
+        if( pStr[i] == ')' )
+            nBracketEnd = i;
+        else if( pStr[i] == '(' )
+        {
+            nBracketLen = nBracketEnd - i;
+            if( nBracketEnd <= 0 )
+                continue;
+            if( isFilterString( rFilterName.subView( i + 1, nBracketLen - 1 ), "*." ) )
+                aRealName = aRealName.replaceAt( i, nBracketLen + 1, u"" );
+            else if (bAllowNoStar)
+            {
+                if( isFilterString( rFilterName.subView( i + 1, nBracketLen - 1 ), ".") )
+                    aRealName = aRealName.replaceAt( i, nBracketLen + 1, u"" );
+            }
+        }
+    }
+
+    return aRealName;
+}
+
+namespace {
+
+    struct FilterTitleMatch
+    {
+    protected:
+        const OUString& rTitle;
+
+    public:
+        explicit FilterTitleMatch( const OUString& _rTitle ) : rTitle( _rTitle ) { }
+
+        bool operator () ( const FilterEntry& _rEntry )
+        {
+            bool bMatch;
+            if( !_rEntry.hasSubFilters() )
+                // a real filter
+                bMatch = (_rEntry.getTitle() == rTitle)
+                      || (shrinkFilterName(_rEntry.getTitle()) == rTitle);
+            else
+                // a filter group -> search the sub filters
+                bMatch =
+                    ::std::any_of(
+                        _rEntry.beginSubFilters(),
+                        _rEntry.endSubFilters(),
+                        *this
+                    );
+
+            return bMatch;
+        }
+        bool operator () ( const css::beans::StringPair& _rEntry )
+        {
+            OUString aShrunkName = shrinkFilterName( _rEntry.First );
+            return aShrunkName == rTitle;
+        }
+    };
+}
+
+bool SalGtkFilePicker::FilterNameExists( const OUString& rTitle )
+{
+    bool bRet = false;
+
+    if( m_pFilterVector )
+        bRet =
+            ::std::any_of(
+                m_pFilterVector->begin(),
+                m_pFilterVector->end(),
+                FilterTitleMatch( rTitle )
+            );
+
+    return bRet;
+}
+
+bool SalGtkFilePicker::FilterNameExists( const css::uno::Sequence< css::beans::StringPair >& _rGroupedFilters )
+{
+    bool bRet = false;
+
+    if( m_pFilterVector )
+    {
+        bRet = std::any_of(_rGroupedFilters.begin(), _rGroupedFilters.end(),
+            [&](const css::beans::StringPair& rFilter) {
+                return ::std::any_of( m_pFilterVector->begin(), m_pFilterVector->end(), FilterTitleMatch( rFilter.First ) ); });
+    }
+
+    return bRet;
+}
+
+void SalGtkFilePicker::ensureFilterVector( const OUString& _rInitialCurrentFilter )
+{
+    if( !m_pFilterVector )
+    {
+        m_pFilterVector.reset( new std::vector<FilterEntry> );
+
+        // set the first filter to the current filter
+        if ( m_aCurrentFilter.isEmpty() )
+            m_aCurrentFilter = _rInitialCurrentFilter;
+    }
+}
+
+void SAL_CALL SalGtkFilePicker::appendFilter( const OUString& aTitle, const OUString& aFilter )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    if( FilterNameExists( aTitle ) )
+            throw IllegalArgumentException();
+
+    // ensure that we have a filter list
+    ensureFilterVector( aTitle );
+
+    // append the filter
+    m_pFilterVector->insert( m_pFilterVector->end(), FilterEntry( aTitle, aFilter ) );
+}
+
+void SAL_CALL SalGtkFilePicker::setCurrentFilter( const OUString& aTitle )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    if( aTitle != m_aCurrentFilter )
+    {
+        m_aCurrentFilter = aTitle;
+        SetCurFilter( m_aCurrentFilter );
+    }
+
+    // TODO m_pImpl->setCurrentFilter( aTitle );
+}
+
+void SalGtkFilePicker::updateCurrentFilterFromName(const gchar* filtername)
+{
+    OUString aFilterName(filtername, strlen(filtername), RTL_TEXTENCODING_UTF8);
+    if (m_pFilterVector)
+    {
+        for (auto const& filter : *m_pFilterVector)
+        {
+            if (aFilterName == shrinkFilterName(filter.getTitle()))
+            {
+                m_aCurrentFilter = filter.getTitle();
+                break;
+            }
+        }
+    }
+}
+
+void SalGtkFilePicker::UpdateFilterfromUI()
+{
+    // Update the filtername from the users selection if they have had a chance to do so.
+    // If the user explicitly sets a type then use that, if not then take the implicit type
+    // from the filter of the files glob on which he is currently searching
+    if (!mnHID_FolderChange || !mnHID_SelectionChange)
+        return;
+
+    GtkTreeSelection* selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(m_pFilterView));
+    GtkTreeIter iter;
+    GtkTreeModel *model;
+    if (gtk_tree_selection_get_selected (selection, &model, &iter))
+    {
+        gchar *title;
+        gtk_tree_model_get (model, &iter, 2, &title, -1);
+        updateCurrentFilterFromName(title);
+        g_free (title);
+    }
+    else if( GtkFileFilter *filter = gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(m_pDialog)))
+    {
+        if (m_pPseudoFilter != filter)
+            updateCurrentFilterFromName(gtk_file_filter_get_name( filter ));
+        else
+            updateCurrentFilterFromName(OUStringToOString( m_aInitialFilter, RTL_TEXTENCODING_UTF8 ).getStr());
+    }
+}
+
+OUString SAL_CALL SalGtkFilePicker::getCurrentFilter()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    UpdateFilterfromUI();
+
+    return m_aCurrentFilter;
+}
+
+// XFilterGroupManager functions
+
+void SAL_CALL SalGtkFilePicker::appendFilterGroup( const OUString& /*sGroupTitle*/, const uno::Sequence<beans::StringPair>& aFilters )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO m_pImpl->appendFilterGroup( sGroupTitle, aFilters );
+    // check the names
+    if( FilterNameExists( aFilters ) )
+        // TODO: a more precise exception message
+            throw IllegalArgumentException();
+
+    // ensure that we have a filter list
+    OUString sInitialCurrentFilter;
+    if( aFilters.hasElements() )
+        sInitialCurrentFilter = aFilters[0].First;
+
+    ensureFilterVector( sInitialCurrentFilter );
+
+    // append the filter
+    for( const auto& rSubFilter : aFilters )
+        m_pFilterVector->insert( m_pFilterVector->end(), FilterEntry( rSubFilter.First, rSubFilter.Second ) );
+
+}
+
+// XFilePicker functions
+
+void SAL_CALL SalGtkFilePicker::setMultiSelectionMode( sal_Bool bMode )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    gtk_file_chooser_set_select_multiple( GTK_FILE_CHOOSER(m_pDialog), bMode );
+}
+
+void SAL_CALL SalGtkFilePicker::setDefaultName( const OUString& aName )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    OString aStr = OUStringToOString( aName, RTL_TEXTENCODING_UTF8 );
+    GtkFileChooserAction eAction = gtk_file_chooser_get_action( GTK_FILE_CHOOSER( m_pDialog ) );
+
+    // set_current_name launches a Gtk critical error if called for other than save
+    if( GTK_FILE_CHOOSER_ACTION_SAVE == eAction )
+        gtk_file_chooser_set_current_name( GTK_FILE_CHOOSER( m_pDialog ), aStr.getStr() );
+}
+
+void SAL_CALL SalGtkFilePicker::setDisplayDirectory( const OUString& rDirectory )
+{
+    SolarMutexGuard g;
+
+    implsetDisplayDirectory(rDirectory);
+}
+
+OUString SAL_CALL SalGtkFilePicker::getDisplayDirectory()
+{
+    SolarMutexGuard g;
+
+    return implgetDisplayDirectory();
+}
+
+uno::Sequence<OUString> SAL_CALL SalGtkFilePicker::getFiles()
+{
+    // no member access => no mutex needed
+
+    uno::Sequence< OUString > aFiles = getSelectedFiles();
+    /*
+      The previous multiselection API design was completely broken
+      and unimplementable for some heterogeneous pseudo-URIs eg. search:
+      Thus crop unconditionally to a single selection.
+    */
+    aFiles.realloc (1);
+    return aFiles;
+}
+
+namespace
+{
+
+bool lcl_matchFilter( const OUString& rFilter, const OUString& rExt )
+{
+    const sal_Unicode cSep {';'};
+    sal_Int32 nIdx {0};
+
+    for (;;)
+    {
+        const sal_Int32 nBegin = rFilter.indexOf(rExt, nIdx);
+
+        if (nBegin<0) // not found
+            break;
+
+        // Let nIdx point to end of matched string, useful in order to
+        // check string boundaries and also for a possible next iteration
+        nIdx = nBegin + rExt.getLength();
+
+        // Check if the found occurrence is an exact match: right side
+        if (nIdx<rFilter.getLength() && rFilter[nIdx]!=cSep)
+            continue;
+
+        // Check if the found occurrence is an exact match: left side
+        if (nBegin>0 && rFilter[nBegin-1]!=cSep)
+            continue;
+
+        return true;
+    }
+
+    return false;
+}
+
+}
+
+uno::Sequence<OUString> SAL_CALL SalGtkFilePicker::getSelectedFiles()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    GSList* pPathList = gtk_file_chooser_get_uris( GTK_FILE_CHOOSER(m_pDialog) );
+    int nCount = g_slist_length( pPathList );
+#else
+    GListModel* pPathList = gtk_file_chooser_get_files(GTK_FILE_CHOOSER(m_pDialog));
+    int nCount = g_list_model_get_n_items(pPathList);
+#endif
+
+    int nIndex = 0;
+
+    // get the current action setting
+    GtkFileChooserAction eAction = gtk_file_chooser_get_action(
+        GTK_FILE_CHOOSER( m_pDialog ));
+
+    uno::Sequence< OUString > aSelectedFiles(nCount);
+    auto aSelectedFilesRange = asNonConstRange(aSelectedFiles);
+
+    // Convert to OOo
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    for( GSList *pElem = pPathList; pElem; pElem = pElem->next)
+    {
+        gchar *pURI = static_cast<gchar*>(pElem->data);
+#else
+    while (gpointer pElem = g_list_model_get_item(pPathList, nIndex))
+    {
+        gchar *pURI = g_file_get_uri(static_cast<GFile*>(pElem));
+#endif
+
+        aSelectedFilesRange[ nIndex ] = uritounicode(pURI);
+
+        if( GTK_FILE_CHOOSER_ACTION_SAVE == eAction )
+        {
+            OUString sFilterName;
+            sal_Int32 nTokenIndex = 0;
+            bool bExtensionTypedIn = false;
+
+            GtkTreeSelection* selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(m_pFilterView));
+            GtkTreeIter iter;
+            GtkTreeModel *model;
+            if (gtk_tree_selection_get_selected (selection, &model, &iter))
+            {
+                gchar *title = nullptr;
+                gtk_tree_model_get (model, &iter, 2, &title, -1);
+                if (title)
+                    sFilterName = OUString( title, strlen( title ), RTL_TEXTENCODING_UTF8 );
+                else
+                    sFilterName = OUString();
+                g_free (title);
+            }
+            else
+            {
+                if( aSelectedFiles[nIndex].indexOf('.') > 0 )
+                {
+                    std::u16string_view sExtension;
+                    nTokenIndex = 0;
+                    do
+                        sExtension = o3tl::getToken(aSelectedFiles[nIndex], 0, '.', nTokenIndex );
+                    while( nTokenIndex >= 0 );
+
+                    if( sExtension.size() >= 3 ) // 3 = typical/minimum extension length
+                    {
+                        OUString aNewFilter;
+                        OUString aOldFilter = getCurrentFilter();
+                        bool bChangeFilter = true;
+                        if ( m_pFilterVector)
+                            for (auto const& filter : *m_pFilterVector)
+                            {
+                                if( lcl_matchFilter( filter.getFilter(), OUString::Concat("*.") + sExtension ) )
+                                {
+                                    if( aNewFilter.isEmpty() )
+                                        aNewFilter = filter.getTitle();
+
+                                    if( aOldFilter == filter.getTitle() )
+                                        bChangeFilter = false;
+
+                                    bExtensionTypedIn = true;
+                                }
+                            }
+                        if( bChangeFilter && bExtensionTypedIn )
+                        {
+                            gchar* pCurrentName = gtk_file_chooser_get_current_name(GTK_FILE_CHOOSER(m_pDialog));
+                            setCurrentFilter( aNewFilter );
+                            gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_pDialog), pCurrentName);
+                            g_free(pCurrentName);
+                        }
+                    }
+                }
+
+                GtkFileFilter *filter = gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(m_pDialog));
+                if (m_pPseudoFilter != filter)
+                {
+                    const gchar* filtername = filter ? gtk_file_filter_get_name(filter) : nullptr;
+                    if (filtername)
+                        sFilterName = OUString(filtername, strlen( filtername ), RTL_TEXTENCODING_UTF8);
+                    else
+                        sFilterName.clear();
+                }
+                else
+                    sFilterName = m_aInitialFilter;
+            }
+
+            if (m_pFilterVector)
+            {
+                auto aVectorIter = ::std::find_if(
+                    m_pFilterVector->begin(), m_pFilterVector->end(), FilterTitleMatch(sFilterName) );
+
+                OUString aFilter;
+                if (aVectorIter != m_pFilterVector->end())
+                    aFilter = aVectorIter->getFilter();
+
+                nTokenIndex = 0;
+                OUString sToken;
+                do
+                {
+                    sToken = aFilter.getToken( 0, '.', nTokenIndex );
+
+                    if ( sToken.lastIndexOf( ';' ) != -1 )
+                    {
+                        sToken = sToken.getToken(0, ';');
+                        break;
+                    }
+                }
+                while( nTokenIndex >= 0 );
+
+                if( !bExtensionTypedIn && ( sToken != "*" ) )
+                {
+                    //if the filename does not already have the auto extension, stick it on
+                    OUString sExtension = "." + sToken;
+                    OUString &rBase = aSelectedFilesRange[nIndex];
+                    sal_Int32 nExtensionIdx = rBase.getLength() - sExtension.getLength();
+                    SAL_INFO(
+                        "vcl.gtk",
+                        "idx are " << rBase.lastIndexOf(sExtension) << " "
+                        << nExtensionIdx);
+
+                    if( rBase.lastIndexOf( sExtension ) != nExtensionIdx )
+                        rBase += sExtension;
+                }
+            }
+
+        }
+
+        nIndex++;
+        g_free( pURI );
+    }
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    g_slist_free( pPathList );
+#else
+    g_object_unref(pPathList);
+#endif
+
+    return aSelectedFiles;
+}
+
+// XExecutableDialog functions
+
+void SAL_CALL SalGtkFilePicker::setTitle( const OUString& rTitle )
+{
+    SolarMutexGuard g;
+
+    implsetTitle(rTitle);
+}
+
+sal_Int16 SAL_CALL SalGtkFilePicker::execute()
+{
+    SolarMutexGuard g;
+
+    if (!mbInitialized)
+    {
+        // tdf#144084 if not initialized default to FILEOPEN_SIMPLE
+        impl_initialize(nullptr, FILEOPEN_SIMPLE);
+        assert(mbInitialized);
+    }
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    sal_Int16 retVal = 0;
+
+    SetFilters();
+
+    // tdf#84431 - set the filter after the corresponding widget is created
+    if ( !m_aCurrentFilter.isEmpty() )
+        SetCurFilter(m_aCurrentFilter);
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    mnHID_FolderChange =
+        g_signal_connect( GTK_FILE_CHOOSER( m_pDialog ), "current-folder-changed",
+            G_CALLBACK( folder_changed_cb ), static_cast<gpointer>(this) );
+#else
+    // no replacement in 4-0 that I can see :-(
+    mnHID_FolderChange = 0;
+#endif
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    mnHID_SelectionChange =
+        g_signal_connect( GTK_FILE_CHOOSER( m_pDialog ), "selection-changed",
+            G_CALLBACK( selection_changed_cb ), static_cast<gpointer>(this) );
+#else
+    // no replacement in 4-0 that I can see :-(
+    mnHID_SelectionChange = 0;
+#endif
+
+    int btn = GTK_RESPONSE_NO;
+
+    uno::Reference< awt::XExtendedToolkit > xToolkit(
+        awt::Toolkit::create(m_xContext),
+        UNO_QUERY_THROW );
+
+    uno::Reference< frame::XDesktop > xDesktop(
+        frame::Desktop::create(m_xContext),
+        UNO_QUERY_THROW );
+
+    GtkWindow *pParent = GTK_WINDOW(m_pParentWidget);
+    if (!pParent)
+    {
+        SAL_WARN( "vcl.gtk", "no parent widget set");
+        pParent = RunDialog::GetTransientFor();
+    }
+    if (pParent)
+        gtk_window_set_transient_for(GTK_WINDOW(m_pDialog), pParent);
+    rtl::Reference<RunDialog> pRunDialog = new RunDialog(m_pDialog, xToolkit, xDesktop);
+    while( GTK_RESPONSE_NO == btn )
+    {
+        btn = GTK_RESPONSE_YES; // we don't want to repeat unless user clicks NO for file save.
+
+        gint nStatus = pRunDialog->run();
+        switch( nStatus )
+        {
+            case GTK_RESPONSE_ACCEPT:
+                if( GTK_FILE_CHOOSER_ACTION_SAVE == gtk_file_chooser_get_action( GTK_FILE_CHOOSER( m_pDialog ) ) )
+                {
+                    Sequence < OUString > aPathSeq = getFiles();
+                    if( aPathSeq.getLength() == 1 )
+                    {
+                        OUString sFileName = aPathSeq[0];
+                        if (::utl::UCBContentHelper::Exists(sFileName))
+                        {
+                            INetURLObject aFileObj(sFileName);
+
+                            OString baseName(
+                              OUStringToOString(
+                                aFileObj.getName(
+                                  INetURLObject::LAST_SEGMENT,
+                                  true,
+                                  INetURLObject::DecodeMechanism::WithCharset
+                                ),
+                                RTL_TEXTENCODING_UTF8
+                              )
+                            );
+                            OString aMsg(
+                              OUStringToOString(
+                                getResString( FILE_PICKER_OVERWRITE_PRIMARY ),
+                                RTL_TEXTENCODING_UTF8
+                              )
+                            );
+                            OString toReplace("$filename$");
+
+                            aMsg = aMsg.replaceAt(
+                              aMsg.indexOf( toReplace ),
+                              toReplace.getLength(),
+                              baseName
+                            );
+
+                            GtkWidget *dlg = gtk_message_dialog_new( nullptr,
+                                GTK_DIALOG_MODAL,
+                                GTK_MESSAGE_QUESTION,
+                                GTK_BUTTONS_YES_NO,
+                                "%s",
+                                aMsg.getStr()
+                            );
+
+                            GtkWidget* pOkButton = gtk_dialog_get_widget_for_response(GTK_DIALOG(dlg), GTK_RESPONSE_YES);
+                            GtkStyleContext* pStyleContext = gtk_widget_get_style_context(pOkButton);
+                            gtk_style_context_add_class(pStyleContext, "destructive-action");
+
+                            sal_Int32 nSegmentCount = aFileObj.getSegmentCount();
+                            if (nSegmentCount >= 2)
+                            {
+                                OString dirName(
+                                  OUStringToOString(
+                                    aFileObj.getName(
+                                      nSegmentCount-2,
+                                      true,
+                                      INetURLObject::DecodeMechanism::WithCharset
+                                    ),
+                                    RTL_TEXTENCODING_UTF8
+                                  )
+                                );
+
+                                aMsg =
+                                  OUStringToOString(
+                                    getResString( FILE_PICKER_OVERWRITE_SECONDARY ),
+                                    RTL_TEXTENCODING_UTF8
+                                  );
+
+                                toReplace = "$dirname$";
+
+                                aMsg = aMsg.replaceAt(
+                                  aMsg.indexOf( toReplace ),
+                                  toReplace.getLength(),
+                                  dirName
+                                );
+
+                                gtk_message_dialog_format_secondary_text( GTK_MESSAGE_DIALOG( dlg ), "%s", aMsg.getStr() );
+                            }
+
+                            gtk_window_set_title( GTK_WINDOW( dlg ),
+                                OUStringToOString(getResString(FILE_PICKER_TITLE_SAVE ),
+                                RTL_TEXTENCODING_UTF8 ).getStr() );
+                            gtk_window_set_transient_for(GTK_WINDOW(dlg), GTK_WINDOW(m_pDialog));
+                            rtl::Reference<RunDialog> pAnotherDialog = new RunDialog(dlg, xToolkit, xDesktop);
+                            btn = pAnotherDialog->run();
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+                            gtk_widget_destroy(dlg);
+#else
+                            gtk_window_destroy(GTK_WINDOW(dlg));
+#endif
+                        }
+
+                        if( btn == GTK_RESPONSE_YES )
+                            retVal = ExecutableDialogResults::OK;
+                    }
+                }
+                else
+                    retVal = ExecutableDialogResults::OK;
+                break;
+
+            case GTK_RESPONSE_CANCEL:
+                retVal = ExecutableDialogResults::CANCEL;
+                break;
+
+            case 1: //PLAY
+                {
+                    FilePickerEvent evt;
+                    evt.ElementId = PUSHBUTTON_PLAY;
+                    impl_controlStateChanged( evt );
+                    btn = GTK_RESPONSE_NO;
+                }
+                break;
+
+            default:
+                retVal = 0;
+                break;
+        }
+    }
+    gtk_widget_hide(m_pDialog);
+
+    if (mnHID_FolderChange)
+        g_signal_handler_disconnect(GTK_FILE_CHOOSER( m_pDialog ), mnHID_FolderChange);
+    if (mnHID_SelectionChange)
+        g_signal_handler_disconnect(GTK_FILE_CHOOSER( m_pDialog ), mnHID_SelectionChange);
+
+    return retVal;
+}
+
+// cf. offapi/com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.idl
+GtkWidget *SalGtkFilePicker::getWidget( sal_Int16 nControlId, GType *pType )
+{
+    GType      tType = GTK_TYPE_CHECK_BUTTON; //prevent warning by initializing
+    GtkWidget *pWidget = nullptr;
+
+#define MAP_TOGGLE( elem ) \
+        case ExtendedFilePickerElementIds::CHECKBOX_##elem: \
+            pWidget = m_pToggles[elem]; tType = GTK_TYPE_CHECK_BUTTON; \
+            break
+#define MAP_BUTTON( elem ) \
+        case CommonFilePickerElementIds::PUSHBUTTON_##elem: \
+            pWidget = m_pButtons[elem]; tType = GTK_TYPE_BUTTON; \
+            break
+#define MAP_EXT_BUTTON( elem ) \
+        case ExtendedFilePickerElementIds::PUSHBUTTON_##elem: \
+            pWidget = m_pButtons[elem]; tType = GTK_TYPE_BUTTON; \
+            break
+#define MAP_LIST( elem ) \
+        case ExtendedFilePickerElementIds::LISTBOX_##elem: \
+            pWidget = m_pLists[elem]; tType = GTK_TYPE_COMBO_BOX; \
+            break
+#define MAP_LIST_LABEL( elem ) \
+        case ExtendedFilePickerElementIds::LISTBOX_##elem##_LABEL: \
+            pWidget = m_pListLabels[elem]; tType = GTK_TYPE_LABEL; \
+            break
+
+    switch( nControlId )
+    {
+        MAP_TOGGLE( AUTOEXTENSION );
+        MAP_TOGGLE( PASSWORD );
+        MAP_TOGGLE( GPGENCRYPTION );
+        MAP_TOGGLE( FILTEROPTIONS );
+        MAP_TOGGLE( READONLY );
+        MAP_TOGGLE( LINK );
+        MAP_TOGGLE( PREVIEW );
+        MAP_TOGGLE( SELECTION );
+        MAP_BUTTON( OK );
+        MAP_BUTTON( CANCEL );
+        MAP_EXT_BUTTON( PLAY );
+        MAP_LIST( VERSION );
+        MAP_LIST( TEMPLATE );
+        MAP_LIST( IMAGE_TEMPLATE );
+        MAP_LIST( IMAGE_ANCHOR );
+        MAP_LIST_LABEL( VERSION );
+        MAP_LIST_LABEL( TEMPLATE );
+        MAP_LIST_LABEL( IMAGE_TEMPLATE );
+        MAP_LIST_LABEL( IMAGE_ANCHOR );
+    default:
+        SAL_WARN( "vcl.gtk", "Handle unknown control " << nControlId);
+        break;
+    }
+#undef MAP
+
+    if( pType )
+        *pType = tType;
+    return pWidget;
+}
+
+// XFilePickerControlAccess functions
+
+static void HackWidthToFirst(GtkComboBox *pWidget)
+{
+    GtkRequisition requisition;
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    gtk_widget_size_request(GTK_WIDGET(pWidget), &requisition);
+#else
+    gtk_widget_get_preferred_size(GTK_WIDGET(pWidget), &requisition, nullptr);
+#endif
+    gtk_widget_set_size_request(GTK_WIDGET(pWidget), requisition.width, -1);
+}
+
+static void ComboBoxAppendText(GtkComboBox *pCombo, std::u16string_view rStr)
+{
+  GtkTreeIter aIter;
+  GtkListStore *pStore = GTK_LIST_STORE(gtk_combo_box_get_model(pCombo));
+  OString aStr = OUStringToOString(rStr, RTL_TEXTENCODING_UTF8);
+  gtk_list_store_append(pStore, &aIter);
+  gtk_list_store_set(pStore, &aIter, 0, aStr.getStr(), -1);
+}
+
+void SalGtkFilePicker::HandleSetListValue(GtkComboBox *pWidget, sal_Int16 nControlAction, const uno::Any& rValue)
+{
+    switch (nControlAction)
+    {
+        case ControlActions::ADD_ITEM:
+            {
+                OUString sItem;
+                rValue >>= sItem;
+                ComboBoxAppendText(pWidget, sItem);
+                if (!bVersionWidthUnset)
+                {
+                    HackWidthToFirst(pWidget);
+                    bVersionWidthUnset = true;
+                }
+            }
+            break;
+        case ControlActions::ADD_ITEMS:
+            {
+                Sequence< OUString > aStringList;
+                rValue >>= aStringList;
+                for (const auto& rString : std::as_const(aStringList))
+                {
+                    ComboBoxAppendText(pWidget, rString);
+                    if (!bVersionWidthUnset)
+                    {
+                        HackWidthToFirst(pWidget);
+                        bVersionWidthUnset = true;
+                    }
+                }
+            }
+            break;
+        case ControlActions::DELETE_ITEM:
+            {
+                sal_Int32 nPos=0;
+                rValue >>= nPos;
+
+                GtkTreeIter aIter;
+                GtkListStore *pStore = GTK_LIST_STORE(
+                        gtk_combo_box_get_model(GTK_COMBO_BOX(pWidget)));
+                if(gtk_tree_model_iter_nth_child(GTK_TREE_MODEL(pStore), &aIter, nullptr, nPos))
+                    gtk_list_store_remove(pStore, &aIter);
+            }
+            break;
+        case ControlActions::DELETE_ITEMS:
+            {
+                gtk_combo_box_set_active(pWidget, -1);
+                GtkListStore *pStore = GTK_LIST_STORE(
+                        gtk_combo_box_get_model(GTK_COMBO_BOX(pWidget)));
+                gtk_list_store_clear(pStore);
+            }
+            break;
+        case ControlActions::SET_SELECT_ITEM:
+            {
+                sal_Int32 nPos=0;
+                rValue >>= nPos;
+                gtk_combo_box_set_active(pWidget, nPos);
+            }
+            break;
+        default:
+            SAL_WARN( "vcl.gtk", "undocumented/unimplemented ControlAction for a list " << nControlAction);
+            break;
+    }
+
+    //I think its best to make it insensitive unless there is the chance to
+    //actually select something from the list.
+    gint nItems = gtk_tree_model_iter_n_children(
+                    gtk_combo_box_get_model(pWidget), nullptr);
+    gtk_widget_set_sensitive(GTK_WIDGET(pWidget), nItems > 1);
+}
+
+uno::Any SalGtkFilePicker::HandleGetListValue(GtkComboBox *pWidget, sal_Int16 nControlAction)
+{
+    uno::Any aAny;
+    switch (nControlAction)
+    {
+        case ControlActions::GET_ITEMS:
+            {
+                Sequence< OUString > aItemList;
+
+                GtkTreeModel *pTree = gtk_combo_box_get_model(pWidget);
+                GtkTreeIter iter;
+                if (gtk_tree_model_get_iter_first(pTree, &iter))
+                {
+                    sal_Int32 nSize = gtk_tree_model_iter_n_children(
+                        pTree, nullptr);
+
+                    aItemList.realloc(nSize);
+                    auto pItemList = aItemList.getArray();
+                    for (sal_Int32 i=0; i < nSize; ++i)
+                    {
+                        gchar *item;
+                        gtk_tree_model_get(gtk_combo_box_get_model(pWidget),
+                            &iter, 0, &item, -1);
+                        pItemList[i] = OUString(item, strlen(item), RTL_TEXTENCODING_UTF8);
+                        g_free(item);
+                        (void)gtk_tree_model_iter_next(pTree, &iter);
+                    }
+                }
+                aAny <<= aItemList;
+            }
+            break;
+        case ControlActions::GET_SELECTED_ITEM:
+            {
+                GtkTreeIter iter;
+                if (gtk_combo_box_get_active_iter(pWidget, &iter))
+                {
+                        gchar *item;
+                        gtk_tree_model_get(gtk_combo_box_get_model(pWidget),
+                            &iter, 0, &item, -1);
+                        OUString sItem(item, strlen(item), RTL_TEXTENCODING_UTF8);
+                        aAny <<= sItem;
+                        g_free(item);
+                }
+            }
+            break;
+        case ControlActions::GET_SELECTED_ITEM_INDEX:
+            {
+                gint nActive = gtk_combo_box_get_active(pWidget);
+                aAny <<= static_cast< sal_Int32 >(nActive);
+            }
+            break;
+        default:
+            SAL_WARN( "vcl.gtk", "undocumented/unimplemented ControlAction for a list " << nControlAction);
+            break;
+    }
+    return aAny;
+}
+
+void SAL_CALL SalGtkFilePicker::setValue( sal_Int16 nControlId, sal_Int16 nControlAction, const uno::Any& rValue )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    GType tType;
+    GtkWidget *pWidget;
+
+    if( !( pWidget = getWidget( nControlId, &tType ) ) )
+        SAL_WARN( "vcl.gtk", "enable unknown control " << nControlId);
+    else if( tType == GTK_TYPE_CHECK_BUTTON)
+    {
+        bool bChecked = false;
+        rValue >>= bChecked;
+#if GTK_CHECK_VERSION(4, 0, 0)
+        gtk_check_button_set_active(GTK_CHECK_BUTTON(pWidget), bChecked);
+#else
+        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(pWidget), bChecked);
+#endif
+    }
+    else if( tType == GTK_TYPE_COMBO_BOX )
+        HandleSetListValue(GTK_COMBO_BOX(pWidget), nControlAction, rValue);
+    else
+    {
+        SAL_WARN( "vcl.gtk", "Can't set value on button / list " << nControlId << " " << nControlAction );
+    }
+}
+
+uno::Any SAL_CALL SalGtkFilePicker::getValue( sal_Int16 nControlId, sal_Int16 nControlAction )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    uno::Any aRetval;
+
+    GType tType;
+    GtkWidget *pWidget;
+
+    if( !( pWidget = getWidget( nControlId, &tType ) ) )
+        SAL_WARN( "vcl.gtk", "enable unknown control " << nControlId);
+    else if( tType == GTK_TYPE_CHECK_BUTTON)
+    {
+#if GTK_CHECK_VERSION(4, 0, 0)
+        aRetval <<= bool(gtk_check_button_get_active(GTK_CHECK_BUTTON(pWidget)));
+#else
+        aRetval <<= bool(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(pWidget)));
+#endif
+    }
+    else if( tType == GTK_TYPE_COMBO_BOX )
+        aRetval = HandleGetListValue(GTK_COMBO_BOX(pWidget), nControlAction);
+    else
+        SAL_WARN( "vcl.gtk", "Can't get value on button / list " << nControlId << " " << nControlAction );
+
+    return aRetval;
+}
+
+void SAL_CALL SalGtkFilePicker::enableControl( sal_Int16 nControlId, sal_Bool bEnable )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    GtkWidget *pWidget;
+
+    if ( ( pWidget = getWidget( nControlId ) ) )
+    {
+        if( bEnable )
+        {
+            gtk_widget_set_sensitive( pWidget, true );
+        }
+        else
+        {
+            gtk_widget_set_sensitive( pWidget, false );
+        }
+    }
+    else
+        SAL_WARN( "vcl.gtk", "enable unknown control " << nControlId );
+}
+
+void SAL_CALL SalGtkFilePicker::setLabel( sal_Int16 nControlId, const OUString& rLabel )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    GType tType;
+    GtkWidget *pWidget;
+
+    if( !( pWidget = getWidget( nControlId, &tType ) ) )
+    {
+        SAL_WARN( "vcl.gtk", "Set label '" << rLabel << "' on unknown control " << nControlId);
+        return;
+    }
+
+    OString aTxt = OUStringToOString( rLabel.replace('~', '_'), RTL_TEXTENCODING_UTF8 );
+    if( tType == GTK_TYPE_CHECK_BUTTON || tType == GTK_TYPE_BUTTON || tType == GTK_TYPE_LABEL )
+        g_object_set( pWidget, "label", aTxt.getStr(),
+                      "use_underline", true, nullptr );
+    else
+        SAL_WARN( "vcl.gtk", "Can't set label on list");
+}
+
+OUString SAL_CALL SalGtkFilePicker::getLabel( sal_Int16 nControlId )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    GType tType;
+    OString aTxt;
+    GtkWidget *pWidget;
+
+    if( !( pWidget = getWidget( nControlId, &tType ) ) )
+        SAL_WARN( "vcl.gtk", "Get label on unknown control " << nControlId);
+    else if( tType == GTK_TYPE_CHECK_BUTTON || tType == GTK_TYPE_BUTTON || tType == GTK_TYPE_LABEL )
+        aTxt = gtk_button_get_label( GTK_BUTTON( pWidget ) );
+    else
+        SAL_WARN( "vcl.gtk", "Can't get label on list");
+
+    return OStringToOUString( aTxt, RTL_TEXTENCODING_UTF8 );
+}
+
+// XFilePreview functions
+
+uno::Sequence<sal_Int16> SAL_CALL SalGtkFilePicker::getSupportedImageFormats()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO return m_pImpl->getSupportedImageFormats();
+    return uno::Sequence<sal_Int16>();
+}
+
+sal_Int32 SAL_CALL SalGtkFilePicker::getTargetColorDepth()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO return m_pImpl->getTargetColorDepth();
+    return 0;
+}
+
+sal_Int32 SAL_CALL SalGtkFilePicker::getAvailableWidth()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    return g_PreviewImageWidth;
+}
+
+sal_Int32 SAL_CALL SalGtkFilePicker::getAvailableHeight()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    return g_PreviewImageHeight;
+}
+
+void SAL_CALL SalGtkFilePicker::setImage( sal_Int16 /*aImageFormat*/, const uno::Any& /*aImage*/ )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO m_pImpl->setImage( aImageFormat, aImage );
+}
+
+void SalGtkFilePicker::implChangeType( GtkTreeSelection *selection )
+{
+    OUString aLabel = getResString( FILE_PICKER_FILE_TYPE );
+
+    GtkTreeIter iter;
+    GtkTreeModel *model;
+    if (gtk_tree_selection_get_selected (selection, &model, &iter))
+    {
+        gchar *title;
+        gtk_tree_model_get (model, &iter, 2, &title, -1);
+        aLabel += ": " +
+            OUString( title, strlen(title), RTL_TEXTENCODING_UTF8 );
+        g_free (title);
+    }
+    gtk_expander_set_label (GTK_EXPANDER (m_pFilterExpander),
+        OUStringToOString( aLabel, RTL_TEXTENCODING_UTF8 ).getStr());
+    FilePickerEvent evt;
+    evt.ElementId = LISTBOX_FILTER;
+    impl_controlStateChanged( evt );
+}
+
+void SalGtkFilePicker::type_changed_cb( GtkTreeSelection *selection, SalGtkFilePicker *pobjFP )
+{
+    pobjFP->implChangeType(selection);
+}
+
+void SalGtkFilePicker::unselect_type()
+{
+    gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(GTK_TREE_VIEW(m_pFilterView)));
+}
+
+void SalGtkFilePicker::expander_changed_cb( GtkExpander *expander, SalGtkFilePicker *pobjFP )
+{
+    if (gtk_expander_get_expanded(expander))
+        pobjFP->unselect_type();
+}
+
+void SalGtkFilePicker::filter_changed_cb( GtkFileChooser *, GParamSpec *,
+    SalGtkFilePicker *pobjFP )
+{
+    FilePickerEvent evt;
+    evt.ElementId = LISTBOX_FILTER;
+    SAL_INFO( "vcl.gtk", "filter_changed, isn't it great " << pobjFP );
+    pobjFP->impl_controlStateChanged( evt );
+}
+
+void SalGtkFilePicker::folder_changed_cb( GtkFileChooser *, SalGtkFilePicker *pobjFP )
+{
+    FilePickerEvent evt;
+    SAL_INFO( "vcl.gtk", "folder_changed, isn't it great " << pobjFP );
+    pobjFP->impl_directoryChanged( evt );
+}
+
+void SalGtkFilePicker::selection_changed_cb( GtkFileChooser *, SalGtkFilePicker *pobjFP )
+{
+    FilePickerEvent evt;
+    SAL_INFO( "vcl.gtk", "selection_changed, isn't it great " << pobjFP );
+    pobjFP->impl_fileSelectionChanged( evt );
+}
+
+void SalGtkFilePicker::update_preview_cb( GtkFileChooser *file_chooser, SalGtkFilePicker* pobjFP )
+{
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    bool have_preview = false;
+
+    GtkWidget* preview = pobjFP->m_pPreview;
+    char* filename = gtk_file_chooser_get_preview_filename( file_chooser );
+
+    if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(pobjFP->m_pToggles[PREVIEW])) && filename && g_file_test(filename, G_FILE_TEST_IS_REGULAR))
+    {
+        GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(
+                filename,
+                g_PreviewImageWidth,
+                g_PreviewImageHeight, nullptr );
+
+        have_preview = ( pixbuf != nullptr );
+
+        gtk_image_set_from_pixbuf( GTK_IMAGE( preview ), pixbuf );
+        if( pixbuf )
+            g_object_unref( G_OBJECT( pixbuf ) );
+
+    }
+
+    gtk_file_chooser_set_preview_widget_active( file_chooser, have_preview );
+
+    if( filename )
+        g_free( filename );
+#else
+    (void)file_chooser;
+    (void)pobjFP;
+#endif
+}
+
+sal_Bool SAL_CALL SalGtkFilePicker::setShowState( sal_Bool bShowState )
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO return m_pImpl->setShowState( bShowState );
+    if( bool(bShowState) != mbPreviewState )
+    {
+        if( bShowState )
+        {
+            // Show
+            if( !mHID_Preview )
+            {
+                mHID_Preview = g_signal_connect(
+                    GTK_FILE_CHOOSER( m_pDialog ), "update-preview",
+                    G_CALLBACK( update_preview_cb ), static_cast<gpointer>(this) );
+            }
+            gtk_widget_show( m_pPreview );
+        }
+        else
+        {
+            // Hide
+            gtk_widget_hide( m_pPreview );
+        }
+
+        // also emit the signal
+        g_signal_emit_by_name( G_OBJECT( m_pDialog ), "update-preview" );
+
+        mbPreviewState = bShowState;
+    }
+    return true;
+}
+
+sal_Bool SAL_CALL SalGtkFilePicker::getShowState()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    return mbPreviewState;
+}
+
+GtkWidget* SalGtkPicker::GetParentWidget(const uno::Sequence<uno::Any>& rArguments)
+{
+    GtkWidget* pParentWidget = nullptr;
+
+    css::uno::Reference<css::awt::XWindow> xParentWindow;
+    if (rArguments.getLength() > 1)
+    {
+        rArguments[1] >>= xParentWindow;
+    }
+
+    if (xParentWindow.is())
+    {
+        if (SalGtkXWindow* pGtkXWindow = dynamic_cast<SalGtkXWindow*>(xParentWindow.get()))
+            pParentWidget = pGtkXWindow->getGtkWidget();
+        else
+        {
+            css::uno::Reference<css::awt::XSystemDependentWindowPeer> xSysDepWin(xParentWindow, css::uno::UNO_QUERY);
+            if (xSysDepWin.is())
+            {
+                css::uno::Sequence<sal_Int8> aProcessIdent(16);
+                rtl_getGlobalProcessId(reinterpret_cast<sal_uInt8*>(aProcessIdent.getArray()));
+                uno::Any aAny = xSysDepWin->getWindowHandle(aProcessIdent, css::lang::SystemDependent::SYSTEM_XWINDOW);
+                css::awt::SystemDependentXWindow tmp;
+                aAny >>= tmp;
+                pParentWidget = GetGtkSalData()->GetGtkDisplay()->findGtkWidgetForNativeHandle(tmp.WindowHandle);
+            }
+        }
+    }
+
+    return pParentWidget;
+}
+
+// XInitialization
+
+void SAL_CALL SalGtkFilePicker::initialize( const uno::Sequence<uno::Any>& aArguments )
+{
+    // parameter checking
+    uno::Any aAny;
+    if( !aArguments.hasElements() )
+        throw lang::IllegalArgumentException(
+            "no arguments",
+            static_cast<XFilePicker2*>( this ), 1 );
+
+    aAny = aArguments[0];
+
+    if( ( aAny.getValueType() != cppu::UnoType<sal_Int16>::get()) &&
+         (aAny.getValueType() != cppu::UnoType<sal_Int8>::get()) )
+         throw lang::IllegalArgumentException(
+            "invalid argument type",
+            static_cast<XFilePicker2*>( this ), 1 );
+
+    sal_Int16 templateId = -1;
+    aAny >>= templateId;
+
+    impl_initialize(GetParentWidget(aArguments), templateId);
+}
+
+void SalGtkFilePicker::impl_initialize(GtkWidget* pParentWidget, sal_Int16 templateId)
+{
+    m_pParentWidget = pParentWidget;
+
+    GtkFileChooserAction eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+    OString sOpen = getOpenText();
+    OString sSave = getSaveText();
+    const gchar *first_button_text = sOpen.getStr();
+
+    SolarMutexGuard g;
+
+    //   TODO: extract full semantic from
+    //   svtools/source/filepicker/filepicker.cxx (getWinBits)
+    switch( templateId )
+    {
+        case FILEOPEN_SIMPLE:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            break;
+        case FILESAVE_SIMPLE:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE;
+            first_button_text = sSave.getStr();
+                break;
+        case FILESAVE_AUTOEXTENSION_PASSWORD:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE;
+            first_button_text = sSave.getStr();
+            mbToggleVisibility[PASSWORD] = true;
+            mbToggleVisibility[GPGENCRYPTION] = true;
+            // TODO
+            break;
+        case FILESAVE_AUTOEXTENSION_PASSWORD_FILTEROPTIONS:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE;
+            first_button_text = sSave.getStr();
+            mbToggleVisibility[PASSWORD] = true;
+            mbToggleVisibility[GPGENCRYPTION] = true;
+            mbToggleVisibility[FILTEROPTIONS] = true;
+            // TODO
+                break;
+        case FILESAVE_AUTOEXTENSION_SELECTION:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE; // SELECT_FOLDER ?
+            first_button_text = sSave.getStr();
+            mbToggleVisibility[SELECTION] = true;
+            // TODO
+                break;
+        case FILESAVE_AUTOEXTENSION_TEMPLATE:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE;
+            first_button_text = sSave.getStr();
+            mbListVisibility[TEMPLATE] = true;
+            // TODO
+                break;
+        case FILEOPEN_LINK_PREVIEW_IMAGE_TEMPLATE:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[LINK] = true;
+            mbToggleVisibility[PREVIEW] = true;
+            mbListVisibility[IMAGE_TEMPLATE] = true;
+            // TODO
+                break;
+        case FILEOPEN_LINK_PREVIEW_IMAGE_ANCHOR:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[LINK] = true;
+            mbToggleVisibility[PREVIEW] = true;
+            mbListVisibility[IMAGE_ANCHOR] = true;
+            // TODO
+                break;
+        case FILEOPEN_PLAY:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbButtonVisibility[PLAY] = true;
+            // TODO
+                break;
+        case FILEOPEN_LINK_PLAY:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[LINK] = true;
+            mbButtonVisibility[PLAY] = true;
+            // TODO
+                break;
+        case FILEOPEN_READONLY_VERSION:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[READONLY] = true;
+            mbListVisibility[VERSION] = true;
+            break;
+        case FILEOPEN_LINK_PREVIEW:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[LINK] = true;
+            mbToggleVisibility[PREVIEW] = true;
+            // TODO
+                break;
+        case FILESAVE_AUTOEXTENSION:
+            eAction = GTK_FILE_CHOOSER_ACTION_SAVE;
+            first_button_text = sSave.getStr();
+            // TODO
+                break;
+        case FILEOPEN_PREVIEW:
+            eAction = GTK_FILE_CHOOSER_ACTION_OPEN;
+            first_button_text = sOpen.getStr();
+            mbToggleVisibility[PREVIEW] = true;
+            // TODO
+                break;
+        default:
+                throw lang::IllegalArgumentException(
+                "Unknown template",
+                static_cast< XFilePicker2* >( this ),
+                1 );
+    }
+
+    if( GTK_FILE_CHOOSER_ACTION_SAVE == eAction )
+    {
+        OUString aFilePickerTitle(getResString( FILE_PICKER_TITLE_SAVE ));
+        gtk_window_set_title ( GTK_WINDOW( m_pDialog ),
+            OUStringToOString( aFilePickerTitle, RTL_TEXTENCODING_UTF8 ).getStr() );
+    }
+
+    gtk_file_chooser_set_action( GTK_FILE_CHOOSER( m_pDialog ), eAction);
+    m_pButtons[CANCEL] = gtk_dialog_add_button(GTK_DIALOG(m_pDialog), getCancelText().getStr(), GTK_RESPONSE_CANCEL);
+    mbButtonVisibility[CANCEL] = true;
+
+    if (mbButtonVisibility[PLAY])
+    {
+        OString aPlay = OUStringToOString(getResString(PUSHBUTTON_PLAY), RTL_TEXTENCODING_UTF8);
+        m_pButtons[PLAY] = gtk_dialog_add_button(GTK_DIALOG(m_pDialog), aPlay.getStr(), 1);
+    }
+
+    m_pButtons[OK] = gtk_dialog_add_button(GTK_DIALOG(m_pDialog), first_button_text, GTK_RESPONSE_ACCEPT);
+    mbButtonVisibility[OK] = true;
+
+    gtk_dialog_set_default_response( GTK_DIALOG (m_pDialog), GTK_RESPONSE_ACCEPT );
+
+    // Setup special flags
+    for( int nTVIndex = 0; nTVIndex < TOGGLE_LAST; nTVIndex++ )
+    {
+        if( mbToggleVisibility[nTVIndex] )
+            gtk_widget_show( m_pToggles[ nTVIndex ] );
+    }
+
+    for( int nTVIndex = 0; nTVIndex < LIST_LAST; nTVIndex++ )
+    {
+        if( mbListVisibility[nTVIndex] )
+        {
+            gtk_widget_set_sensitive( m_pLists[ nTVIndex ], false );
+            gtk_widget_show( m_pLists[ nTVIndex ] );
+            gtk_widget_show( m_pListLabels[ nTVIndex ] );
+            gtk_widget_show( m_pHBoxs[ nTVIndex ] );
+        }
+    }
+
+    mbInitialized = true;
+}
+
+void SalGtkFilePicker::preview_toggled_cb( GObject *cb, SalGtkFilePicker* pobjFP )
+{
+    if( pobjFP->mbToggleVisibility[PREVIEW] )
+        pobjFP->setShowState( gtk_toggle_button_get_active( GTK_TOGGLE_BUTTON( cb ) ) );
+}
+
+// XCancellable
+
+void SAL_CALL SalGtkFilePicker::cancel()
+{
+    SolarMutexGuard g;
+
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    // TODO m_pImpl->cancel();
+}
+
+// Misc
+
+void SalGtkFilePicker::SetCurFilter( const OUString& rFilter )
+{
+    // Get all the filters already added
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GListModel *filters = gtk_file_chooser_get_filters(GTK_FILE_CHOOSER(m_pDialog));
+#else
+    GSList *filters = gtk_file_chooser_list_filters(GTK_FILE_CHOOSER(m_pDialog));
+#endif
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    int nIndex = 0;
+    while (gpointer pElem = g_list_model_get_item(filters, nIndex))
+    {
+        GtkFileFilter* pFilter = static_cast<GtkFileFilter*>(pElem);
+        ++nIndex;
+#else
+    for( GSList *iter = filters; iter; iter = iter->next )
+    {
+        GtkFileFilter* pFilter = static_cast<GtkFileFilter*>( iter->data );
+#endif
+        const gchar * filtername = gtk_file_filter_get_name( pFilter );
+        OUString sFilterName( filtername, strlen( filtername ), RTL_TEXTENCODING_UTF8 );
+
+        OUString aShrunkName = shrinkFilterName( rFilter );
+        if( aShrunkName == sFilterName )
+        {
+            SAL_INFO( "vcl.gtk", "actually setting " << filtername );
+            gtk_file_chooser_set_filter( GTK_FILE_CHOOSER( m_pDialog ), pFilter );
+            break;
+        }
+    }
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    g_slist_free( filters );
+#else
+    g_object_unref (filters);
+#endif
+}
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+extern "C"
+{
+static gboolean
+case_insensitive_filter (const GtkFileFilterInfo *filter_info, gpointer data)
+{
+    bool bRetval = false;
+    const char *pFilter = static_cast<const char *>(data);
+
+    g_return_val_if_fail( data != nullptr, false );
+    g_return_val_if_fail( filter_info != nullptr, false );
+
+    if( !filter_info->uri )
+        return false;
+
+    const char *pExtn = strrchr( filter_info->uri, '.' );
+    if( !pExtn )
+        return false;
+    pExtn++;
+
+    if( !g_ascii_strcasecmp( pFilter, pExtn ) )
+        bRetval = true;
+
+    SAL_INFO( "vcl.gtk", "'" << filter_info->uri << "' match extn '" << pExtn << "' vs '" << pFilter << "' yields " << bRetval );
+
+    return bRetval;
+}
+}
+#endif
+
+GtkFileFilter* SalGtkFilePicker::implAddFilter( const OUString& rFilter, const OUString& rType )
+{
+    GtkFileFilter *filter = gtk_file_filter_new();
+
+    OUString aShrunkName = shrinkFilterName( rFilter );
+    OString aFilterName = OUStringToOString( aShrunkName, RTL_TEXTENCODING_UTF8 );
+    gtk_file_filter_set_name( filter, aFilterName.getStr() );
+
+    OUStringBuffer aTokens;
+
+    bool bAllGlob = rType == "*.*" || rType == "*";
+    if (bAllGlob)
+        gtk_file_filter_add_pattern( filter, "*" );
+    else
+    {
+        sal_Int32 nIndex = 0;
+        do
+        {
+            OUString aToken = rType.getToken( 0, ';', nIndex );
+            // Assume all have the "*.<extn>" syntax
+            sal_Int32 nStarDot = aToken.lastIndexOf( "*." );
+            if (nStarDot >= 0)
+                aToken = aToken.copy( nStarDot + 2 );
+            if (!aToken.isEmpty())
+            {
+                if (!aTokens.isEmpty())
+                    aTokens.append(",");
+                aTokens.append(aToken);
+#if GTK_CHECK_VERSION(4, 0, 0)
+                gtk_file_filter_add_suffix(filter, aToken.toUtf8().getStr());
+#else
+                gtk_file_filter_add_custom (filter, GTK_FILE_FILTER_URI,
+                    case_insensitive_filter,
+                    g_strdup( OUStringToOString(aToken, RTL_TEXTENCODING_UTF8).getStr() ),
+                    g_free );
+#endif
+
+                SAL_INFO( "vcl.gtk", "fustering with " << aToken );
+            }
+#if OSL_DEBUG_LEVEL > 0
+            else
+            {
+                g_warning( "Duff filter token '%s'\n",
+                    OUStringToOString(
+                        o3tl::getToken(rType, 0, ';', nIndex ), RTL_TEXTENCODING_UTF8 ).getStr() );
+            }
+#endif
+        }
+        while( nIndex >= 0 );
+    }
+
+    gtk_file_chooser_add_filter( GTK_FILE_CHOOSER( m_pDialog ), filter );
+
+    if (!bAllGlob)
+    {
+        GtkTreeIter iter;
+        gtk_list_store_append (m_pFilterStore, &iter);
+        gtk_list_store_set (m_pFilterStore, &iter,
+            0, OUStringToOString(shrinkFilterName( rFilter, true ), RTL_TEXTENCODING_UTF8).getStr(),
+            1, OUStringToOString(aTokens, RTL_TEXTENCODING_UTF8).getStr(),
+            2, aFilterName.getStr(),
+            3, OUStringToOString(rType, RTL_TEXTENCODING_UTF8).getStr(),
+            -1);
+    }
+    return filter;
+}
+
+void SalGtkFilePicker::implAddFilterGroup( const Sequence< StringPair >& _rFilters )
+{
+    // Gtk+ has no filter group concept I think so ...
+    // implAddFilter( _rFilter, String() );
+    for( const auto& rSubFilter : _rFilters )
+        implAddFilter( rSubFilter.First, rSubFilter.Second );
+}
+
+void SalGtkFilePicker::SetFilters()
+{
+    if (m_aInitialFilter.isEmpty())
+        m_aInitialFilter = m_aCurrentFilter;
+
+    OUString sPseudoFilter;
+    if( GTK_FILE_CHOOSER_ACTION_SAVE == gtk_file_chooser_get_action( GTK_FILE_CHOOSER( m_pDialog ) ) )
+    {
+        std::set<OUString> aAllFormats;
+        if( m_pFilterVector )
+        {
+            for (auto & filter : *m_pFilterVector)
+            {
+                if( filter.hasSubFilters() )
+                {   // it's a filter group
+                    css::uno::Sequence< css::beans::StringPair > aSubFilters;
+                    filter.getSubFilters( aSubFilters );
+                    for( const auto& rSubFilter : std::as_const(aSubFilters) )
+                        aAllFormats.insert(rSubFilter.Second);
+                }
+                else
+                    aAllFormats.insert(filter.getFilter());
+            }
+        }
+        if (aAllFormats.size() > 1)
+        {
+            OUStringBuffer sAllFilter;
+            for (auto const& format : aAllFormats)
+            {
+                if (!sAllFilter.isEmpty())
+                    sAllFilter.append(";");
+                sAllFilter.append(format);
+            }
+            sPseudoFilter = getResString(FILE_PICKER_ALLFORMATS);
+            m_pPseudoFilter = implAddFilter( sPseudoFilter, sAllFilter.makeStringAndClear() );
+        }
+    }
+
+    if( m_pFilterVector )
+    {
+        for (auto & filter : *m_pFilterVector)
+        {
+            if( filter.hasSubFilters() )
+            {   // it's a filter group
+
+                css::uno::Sequence< css::beans::StringPair > aSubFilters;
+                filter.getSubFilters( aSubFilters );
+
+                implAddFilterGroup( aSubFilters );
+            }
+            else
+            {
+                // it's a single filter
+
+                implAddFilter( filter.getTitle(), filter.getFilter() );
+            }
+        }
+    }
+
+    // We always hide the expander now and depend on the user using the glob
+    // list, or type a filename suffix, to select a filter by inference.
+    gtk_widget_hide(m_pFilterExpander);
+
+    // set the default filter
+    if (!sPseudoFilter.isEmpty())
+        SetCurFilter( sPseudoFilter );
+    else if(!m_aCurrentFilter.isEmpty())
+        SetCurFilter( m_aCurrentFilter );
+
+    SAL_INFO( "vcl.gtk", "end setting filters");
+}
+
+SalGtkFilePicker::~SalGtkFilePicker()
+{
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    SolarMutexGuard g;
+
+    int i;
+
+    for( i = 0; i < TOGGLE_LAST; i++ )
+        gtk_widget_destroy( m_pToggles[i] );
+
+    for( i = 0; i < LIST_LAST; i++ )
+    {
+        gtk_widget_destroy( m_pListLabels[i] );
+        gtk_widget_destroy( m_pLists[i] );
+        gtk_widget_destroy( m_pHBoxs[i] );
+    }
+
+    m_pFilterVector.reset();
+
+    gtk_widget_destroy( m_pVBox );
+#endif
+}
+
+uno::Reference< ui::dialogs::XFilePicker2 >
+GtkInstance::createFilePicker( const css::uno::Reference< css::uno::XComponentContext > &xMSF )
+{
+    return uno::Reference< ui::dialogs::XFilePicker2 >(
+                new SalGtkFilePicker( xMSF ) );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/SalGtkFilePicker.hxx b/vcl/unx/gtk3/fpicker/SalGtkFilePicker.hxx
new file mode 100644
index 000000000..fdc701a20
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkFilePicker.hxx
@@ -0,0 +1,239 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/ui/dialogs/XFilePickerControlAccess.hpp>
+#include <com/sun/star/ui/dialogs/XFilePreview.hpp>
+#include <com/sun/star/ui/dialogs/XFilePicker3.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/beans/StringPair.hpp>
+
+#include <vector>
+#include <memory>
+#include <rtl/ustring.hxx>
+
+#include "SalGtkPicker.hxx"
+
+// Implementation class for the XFilePicker Interface
+
+struct FilterEntry;
+struct ElementEntry_Impl;
+
+
+typedef cppu::WeakComponentImplHelper<
+        css::ui::dialogs::XFilePickerControlAccess,
+        css::ui::dialogs::XFilePreview,
+        css::ui::dialogs::XFilePicker3,
+        css::lang::XInitialization
+        > SalGtkFilePicker_Base;
+
+class SalGtkFilePicker : public SalGtkPicker, public SalGtkFilePicker_Base
+{
+    public:
+
+        // constructor
+        SalGtkFilePicker( const css::uno::Reference< css::uno::XComponentContext >& xServiceMgr );
+
+        // XFilePickerNotifier
+
+        virtual void SAL_CALL addFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener ) override;
+        virtual void SAL_CALL removeFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener ) override;
+
+        // XExecutableDialog functions
+
+        virtual void SAL_CALL setTitle( const OUString& aTitle ) override;
+
+        virtual sal_Int16 SAL_CALL execute() override;
+
+        // XFilePicker functions
+
+        virtual void SAL_CALL setMultiSelectionMode( sal_Bool bMode ) override;
+
+        virtual void SAL_CALL setDefaultName( const OUString& aName ) override;
+
+        virtual void SAL_CALL setDisplayDirectory( const OUString& aDirectory ) override;
+
+        virtual OUString SAL_CALL getDisplayDirectory(  ) override;
+
+        virtual css::uno::Sequence< OUString > SAL_CALL getFiles(  ) override;
+
+        // XFilePicker2 functions
+
+        virtual css::uno::Sequence< OUString > SAL_CALL getSelectedFiles() override;
+
+        // XFilterManager functions
+
+        virtual void SAL_CALL appendFilter( const OUString& aTitle, const OUString& aFilter ) override;
+
+        virtual void SAL_CALL setCurrentFilter( const OUString& aTitle ) override;
+
+        virtual OUString SAL_CALL getCurrentFilter(  ) override;
+
+        // XFilterGroupManager functions
+
+        virtual void SAL_CALL appendFilterGroup( const OUString& sGroupTitle, const css::uno::Sequence< css::beans::StringPair >& aFilters ) override;
+
+        // XFilePickerControlAccess functions
+
+        virtual void SAL_CALL setValue( sal_Int16 nControlId, sal_Int16 nControlAction, const css::uno::Any& aValue ) override;
+
+        virtual css::uno::Any SAL_CALL getValue( sal_Int16 aControlId, sal_Int16 aControlAction ) override;
+
+        virtual void SAL_CALL enableControl( sal_Int16 nControlId, sal_Bool bEnable ) override;
+
+        virtual void SAL_CALL setLabel( sal_Int16 nControlId, const OUString& aLabel ) override;
+
+        virtual OUString SAL_CALL getLabel( sal_Int16 nControlId ) override;
+
+        // XFilePreview
+
+        virtual css::uno::Sequence< sal_Int16 > SAL_CALL getSupportedImageFormats(  ) override;
+
+        virtual sal_Int32 SAL_CALL getTargetColorDepth(  ) override;
+
+        virtual sal_Int32 SAL_CALL getAvailableWidth(  ) override;
+
+        virtual sal_Int32 SAL_CALL getAvailableHeight(  ) override;
+
+        virtual void SAL_CALL setImage( sal_Int16 aImageFormat, const css::uno::Any& aImage ) override;
+
+        virtual sal_Bool SAL_CALL setShowState( sal_Bool bShowState ) override;
+
+        virtual sal_Bool SAL_CALL getShowState(  ) override;
+
+        // XInitialization
+
+        virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& aArguments ) override;
+
+        // XCancellable
+
+        virtual void SAL_CALL cancel( ) override;
+
+        // FilePicker Event functions
+
+    private:
+        SalGtkFilePicker( const SalGtkFilePicker& ) = delete;
+        SalGtkFilePicker& operator=( const SalGtkFilePicker& ) = delete;
+
+        bool FilterNameExists( const OUString& rTitle );
+        bool FilterNameExists( const css::uno::Sequence< css::beans::StringPair >& _rGroupedFilters );
+
+        void ensureFilterVector( const OUString& _rInitialCurrentFilter );
+
+        void impl_fileSelectionChanged( const css::ui::dialogs::FilePickerEvent& aEvent );
+        void impl_directoryChanged( const css::ui::dialogs::FilePickerEvent& aEvent );
+        void impl_controlStateChanged( const css::ui::dialogs::FilePickerEvent& aEvent );
+        void impl_initialize(GtkWidget* pParentWidget, sal_Int16 templateId);
+
+    private:
+        css::uno::Reference< css::ui::dialogs::XFilePickerListener >
+            m_xListener;
+        std::unique_ptr<std::vector<FilterEntry>> m_pFilterVector;
+        GtkWidget  *m_pVBox;
+        GtkWidget  *m_pFilterExpander;
+        GtkWidget  *m_pFilterView;
+        GtkListStore *m_pFilterStore;
+
+        enum {
+            AUTOEXTENSION,
+            PASSWORD,
+            FILTEROPTIONS,
+            READONLY,
+            LINK,
+            PREVIEW,
+            SELECTION,
+            GPGENCRYPTION,
+            TOGGLE_LAST
+              };
+
+        GtkWidget  *m_pToggles[ TOGGLE_LAST ];
+
+        bool mbToggleVisibility[TOGGLE_LAST];
+
+        enum {
+            OK,
+            CANCEL,
+            PLAY,
+            BUTTON_LAST };
+
+        GtkWidget  *m_pButtons[ BUTTON_LAST ];
+
+        enum {
+            VERSION,
+            TEMPLATE,
+            IMAGE_TEMPLATE,
+            IMAGE_ANCHOR,
+            LIST_LAST
+              };
+
+        GtkWidget *m_pHBoxs[ LIST_LAST ];
+        GtkWidget *m_pLists[ LIST_LAST ];
+        GtkWidget *m_pListLabels[ LIST_LAST ];
+        bool mbListVisibility[ LIST_LAST ];
+        bool mbButtonVisibility[ BUTTON_LAST ];
+        gulong mnHID_FolderChange;
+        gulong mnHID_SelectionChange;
+
+        OUString m_aCurrentFilter;
+        OUString m_aInitialFilter;
+
+        bool bVersionWidthUnset;
+        bool mbPreviewState;
+        bool mbInitialized;
+        gulong mHID_Preview;
+        GtkWidget* m_pPreview;
+        GtkFileFilter* m_pPseudoFilter;
+        static constexpr sal_Int32 g_PreviewImageWidth = 256;
+        static constexpr sal_Int32 g_PreviewImageHeight = 256;
+
+        GtkWidget  *getWidget( sal_Int16 nControlId, GType *pType = nullptr);
+
+        void SetCurFilter( const OUString& rFilter );
+        void SetFilters();
+        void UpdateFilterfromUI();
+
+        void implChangeType( GtkTreeSelection *selection );
+        GtkFileFilter * implAddFilter( const OUString& rFilter, const OUString& rType );
+        void implAddFilterGroup(
+                     const css::uno::Sequence< css::beans::StringPair>& _rFilters );
+        void updateCurrentFilterFromName(const gchar* filtername);
+        void unselect_type();
+        void InitialMapping();
+
+        void HandleSetListValue(GtkComboBox *pWidget, sal_Int16 nControlAction,
+            const css::uno::Any& rValue);
+        static css::uno::Any HandleGetListValue(GtkComboBox *pWidget, sal_Int16 nControlAction);
+
+        static void expander_changed_cb( GtkExpander *expander, SalGtkFilePicker *pobjFP );
+        static void preview_toggled_cb( GObject *cb, SalGtkFilePicker *pobjFP );
+        static void filter_changed_cb( GtkFileChooser *file_chooser, GParamSpec *pspec, SalGtkFilePicker *pobjFP );
+        static void type_changed_cb( GtkTreeSelection *selection, SalGtkFilePicker *pobjFP );
+        static void folder_changed_cb (GtkFileChooser *file_chooser, SalGtkFilePicker *pobjFP);
+        static void selection_changed_cb (GtkFileChooser *file_chooser, SalGtkFilePicker *pobjFP);
+        static void update_preview_cb (GtkFileChooser *file_chooser, SalGtkFilePicker *pobjFP);
+        static void dialog_mapped_cb(GtkWidget *widget, SalGtkFilePicker *pobjFP);
+    public:
+         virtual ~SalGtkFilePicker() override;
+
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.cxx b/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.cxx
new file mode 100644
index 000000000..ae617d5af
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.cxx
@@ -0,0 +1,211 @@
+/* -*- 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 .
+ */
+
+#ifdef AIX
+#define _LINUX_SOURCE_COMPAT
+#include <sys/timer.h>
+#undef _LINUX_SOURCE_COMPAT
+#endif
+
+#include <config_gio.h>
+
+#include <com/sun/star/awt/Toolkit.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/ui/dialogs/ExecutableDialogResults.hpp>
+#include <vcl/svapp.hxx>
+#include <unx/gtk/gtkinst.hxx>
+#include "SalGtkFolderPicker.hxx"
+#include <sal/log.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::ui::dialogs;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+
+// constructor
+
+SalGtkFolderPicker::SalGtkFolderPicker( const uno::Reference< uno::XComponentContext >& xContext ) :
+    SalGtkPicker( xContext )
+{
+    m_pDialog = gtk_file_chooser_dialog_new(
+        OUStringToOString( getResString( FOLDERPICKER_TITLE ), RTL_TEXTENCODING_UTF8 ).getStr(),
+        nullptr, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, getCancelText().getStr(), GTK_RESPONSE_CANCEL,
+        getOKText().getStr(), GTK_RESPONSE_ACCEPT, nullptr );
+    gtk_window_set_modal(GTK_WINDOW(m_pDialog), true);
+
+    gtk_dialog_set_default_response( GTK_DIALOG (m_pDialog), GTK_RESPONSE_ACCEPT );
+#if !GTK_CHECK_VERSION(4, 0, 0)
+#if ENABLE_GIO
+    gtk_file_chooser_set_local_only( GTK_FILE_CHOOSER( m_pDialog ), false );
+#endif
+#endif
+    gtk_file_chooser_set_select_multiple( GTK_FILE_CHOOSER( m_pDialog ), false );
+}
+
+void SAL_CALL SalGtkFolderPicker::setDisplayDirectory( const OUString& aDirectory )
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+    OString aTxt = unicodetouri( aDirectory );
+    if( aTxt.isEmpty() ){
+      aTxt = unicodetouri("file:///.");
+    }
+
+    if( aTxt.endsWith("/") )
+        aTxt = aTxt.copy( 0, aTxt.getLength() - 1 );
+
+    SAL_INFO( "vcl", "setting path to " << aTxt );
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GFile* pPath = g_file_new_for_uri(aTxt.getStr());
+    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_pDialog), pPath, nullptr);
+    g_object_unref(pPath);
+#else
+    gtk_file_chooser_set_current_folder_uri(GTK_FILE_CHOOSER(m_pDialog), aTxt.getStr());
+#endif
+}
+
+OUString SAL_CALL SalGtkFolderPicker::getDisplayDirectory()
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GFile* pPath =
+        gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_pDialog));
+    gchar* pCurrentFolder = g_file_get_uri(pPath);
+    g_object_unref(pPath);
+#else
+    gchar* pCurrentFolder =
+        gtk_file_chooser_get_current_folder_uri(GTK_FILE_CHOOSER(m_pDialog));
+#endif
+
+    OUString aCurrentFolderName = uritounicode(pCurrentFolder);
+    g_free( pCurrentFolder );
+
+    return aCurrentFolderName;
+}
+
+OUString SAL_CALL SalGtkFolderPicker::getDirectory()
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GFile* pPath =
+        gtk_file_chooser_get_file(GTK_FILE_CHOOSER(m_pDialog));
+    gchar* pSelectedFolder = g_file_get_uri(pPath);
+    g_object_unref(pPath);
+#else
+    gchar* pSelectedFolder =
+        gtk_file_chooser_get_uri( GTK_FILE_CHOOSER( m_pDialog ) );
+#endif
+    OUString aSelectedFolderName = uritounicode(pSelectedFolder);
+    g_free( pSelectedFolder );
+
+    return aSelectedFolderName;
+}
+
+void SAL_CALL SalGtkFolderPicker::setDescription( const OUString& /*rDescription*/ )
+{
+}
+
+// XExecutableDialog functions
+
+void SAL_CALL SalGtkFolderPicker::setTitle( const OUString& aTitle )
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+    OString aWindowTitle = OUStringToOString( aTitle, RTL_TEXTENCODING_UTF8 );
+
+    gtk_window_set_title( GTK_WINDOW( m_pDialog ), aWindowTitle.getStr() );
+}
+
+sal_Int16 SAL_CALL SalGtkFolderPicker::execute()
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+    sal_Int16 retVal = 0;
+
+    uno::Reference< awt::XExtendedToolkit > xToolkit =
+        awt::Toolkit::create(m_xContext);
+
+    uno::Reference<frame::XDesktop> xDesktop = frame::Desktop::create(m_xContext);
+
+    GtkWindow *pParent = GTK_WINDOW(m_pParentWidget);
+    if (!pParent)
+    {
+        SAL_WARN( "vcl.gtk", "no parent widget set");
+        pParent = RunDialog::GetTransientFor();
+    }
+    if (pParent)
+        gtk_window_set_transient_for(GTK_WINDOW(m_pDialog), pParent);
+    rtl::Reference<RunDialog> pRunDialog = new RunDialog(m_pDialog, xToolkit, xDesktop);
+    gint nStatus = pRunDialog->run();
+    switch( nStatus )
+    {
+        case GTK_RESPONSE_ACCEPT:
+            retVal = ExecutableDialogResults::OK;
+            break;
+        case GTK_RESPONSE_CANCEL:
+            retVal = ExecutableDialogResults::CANCEL;
+            break;
+        default:
+            retVal = 0;
+            break;
+    }
+    gtk_widget_hide(m_pDialog);
+
+    return retVal;
+}
+
+// XInitialization
+
+void SAL_CALL SalGtkFolderPicker::initialize(const uno::Sequence<uno::Any>& aArguments)
+{
+    m_pParentWidget = GetParentWidget(aArguments);
+}
+
+// XCancellable
+
+void SAL_CALL SalGtkFolderPicker::cancel()
+{
+    SolarMutexGuard g;
+
+    assert( m_pDialog != nullptr );
+
+    // TODO m_pImpl->cancel();
+}
+
+uno::Reference< ui::dialogs::XFolderPicker2 >
+GtkInstance::createFolderPicker( const uno::Reference< uno::XComponentContext > &xMSF )
+{
+    return uno::Reference< ui::dialogs::XFolderPicker2 >(
+                new SalGtkFolderPicker( xMSF ) );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.hxx b/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.hxx
new file mode 100644
index 000000000..5b1d8dceb
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkFolderPicker.hxx
@@ -0,0 +1,66 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <memory>
+#include <rtl/ustring.hxx>
+#include <cppuhelper/implbase.hxx>
+
+#include "SalGtkPicker.hxx"
+
+class SalGtkFolderPicker :
+    public SalGtkPicker,
+    public cppu::WeakImplHelper<css::ui::dialogs::XFolderPicker2, css::lang::XInitialization>
+{
+    public:
+
+        // constructor
+        SalGtkFolderPicker( const css::uno::Reference< css::uno::XComponentContext >& xServiceMgr );
+
+        // XExecutableDialog functions
+
+        virtual void SAL_CALL setTitle( const OUString& aTitle ) override;
+
+        virtual sal_Int16 SAL_CALL execute(  ) override;
+
+        // XFolderPicker functions
+
+        virtual void SAL_CALL setDisplayDirectory( const OUString& rDirectory ) override;
+
+        virtual OUString SAL_CALL getDisplayDirectory(  ) override;
+
+        virtual OUString SAL_CALL getDirectory( ) override;
+
+        virtual void SAL_CALL setDescription( const OUString& rDescription ) override;
+
+        // XInitialization
+
+        virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& aArguments ) override;
+
+        // XCancellable
+
+        virtual void SAL_CALL cancel( ) override;
+
+    private:
+        SalGtkFolderPicker( const SalGtkFolderPicker& ) = delete;
+        SalGtkFolderPicker& operator=( const SalGtkFolderPicker& ) = delete;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/SalGtkPicker.cxx b/vcl/unx/gtk3/fpicker/SalGtkPicker.cxx
new file mode 100644
index 000000000..68172ad10
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkPicker.cxx
@@ -0,0 +1,300 @@
+/* -*- 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 .
+ */
+
+#ifdef AIX
+#define _LINUX_SOURCE_COMPAT
+#include <sys/timer.h>
+#undef _LINUX_SOURCE_COMPAT
+#endif
+
+#include <com/sun/star/frame/TerminationVetoException.hpp>
+#include <com/sun/star/lang/XMultiComponentFactory.hpp>
+#include <com/sun/star/uri/ExternalUriReferenceTranslator.hpp>
+#include <com/sun/star/accessibility/XAccessibleContext.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <vcl/svapp.hxx>
+#include <tools/urlobj.hxx>
+
+#include <vcl/window.hxx>
+#include <unx/gtk/gtkdata.hxx>
+#include <unx/gtk/gtkinst.hxx>
+#include <unx/gtk/gtkframe.hxx>
+#include "SalGtkPicker.hxx"
+
+using namespace ::rtl;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+
+OUString SalGtkPicker::uritounicode(const gchar* pIn) const
+{
+    if (!pIn)
+        return OUString();
+
+    OUString sURL( pIn, strlen(pIn),
+        RTL_TEXTENCODING_UTF8 );
+
+    INetURLObject aURL(sURL);
+    if (INetProtocol::File == aURL.GetProtocol())
+    {
+        // all the URLs are handled by office in UTF-8
+        // so the Gnome FP related URLs should be converted accordingly
+        OUString aNewURL = uri::ExternalUriReferenceTranslator::create( m_xContext )->translateToInternal(sURL);
+        if( !aNewURL.isEmpty() )
+            sURL = aNewURL;
+    }
+    return sURL;
+}
+
+OString SalGtkPicker::unicodetouri(const OUString &rURL) const
+{
+    // all the URLs are handled by office in UTF-8 ( and encoded with "%xx" codes based on UTF-8 )
+    // so the Gnome FP related URLs should be converted accordingly
+    OString sURL = OUStringToOString(rURL, RTL_TEXTENCODING_UTF8);
+    INetURLObject aURL(rURL);
+    if (INetProtocol::File == aURL.GetProtocol())
+    {
+        OUString aNewURL = uri::ExternalUriReferenceTranslator::create( m_xContext )->translateToExternal(rURL);
+
+        if( !aNewURL.isEmpty() )
+        {
+            // At this point the URL should contain ascii characters only actually
+            sURL = OUStringToOString( aNewURL, osl_getThreadTextEncoding() );
+        }
+    }
+    return sURL;
+}
+
+extern "C"
+{
+    static gboolean canceldialog(RunDialog *pDialog)
+    {
+        SolarMutexGuard g;
+        pDialog->cancel();
+        return false;
+    }
+}
+
+GtkWindow* RunDialog::GetTransientFor()
+{
+    vcl::Window * pWindow = ::Application::GetActiveTopWindow();
+    if (!pWindow)
+        return nullptr;
+    GtkSalFrame *pFrame = dynamic_cast<GtkSalFrame*>(pWindow->ImplGetFrame());
+    if (!pFrame)
+        return nullptr;
+    return GTK_WINDOW(widget_get_toplevel(pFrame->getWindow()));
+}
+
+RunDialog::RunDialog(GtkWidget *pDialog, const uno::Reference<awt::XExtendedToolkit>& rToolkit,
+                                         const uno::Reference<frame::XDesktop>& rDesktop)
+    : cppu::WeakComponentImplHelper<awt::XTopWindowListener, frame::XTerminateListener>(maLock)
+    , mpDialog(pDialog)
+    , mbTerminateDesktop(false)
+    , mxToolkit(rToolkit)
+    , mxDesktop(rDesktop)
+{
+}
+
+RunDialog::~RunDialog()
+{
+    SolarMutexGuard g;
+
+    g_source_remove_by_user_data (this);
+}
+
+void SAL_CALL RunDialog::windowOpened(const css::lang::EventObject& e)
+{
+    SolarMutexGuard g;
+
+    //Don't popdown dialogs if a tooltip appears elsewhere, that's ok, but do pop down
+    //if another dialog/frame is launched.
+    css::uno::Reference<css::accessibility::XAccessible> xAccessible(e.Source, css::uno::UNO_QUERY);
+    if (xAccessible.is())
+    {
+        css::uno::Reference<css::accessibility::XAccessibleContext> xContext(xAccessible->getAccessibleContext());
+        if (xContext.is() && xContext->getAccessibleRole() == css::accessibility::AccessibleRole::TOOL_TIP)
+        {
+            return;
+        }
+    }
+
+    g_timeout_add_full(G_PRIORITY_HIGH_IDLE, 0, reinterpret_cast<GSourceFunc>(canceldialog), this, nullptr);
+}
+
+void SAL_CALL RunDialog::queryTermination( const css::lang::EventObject& )
+{
+    SolarMutexGuard g;
+
+    g_timeout_add_full(G_PRIORITY_HIGH_IDLE, 0, reinterpret_cast<GSourceFunc>(canceldialog), this, nullptr);
+
+    mbTerminateDesktop = true;
+
+    throw css::frame::TerminationVetoException();
+}
+
+void SAL_CALL RunDialog::notifyTermination( const css::lang::EventObject& )
+{
+}
+
+void RunDialog::cancel()
+{
+    gtk_dialog_response( GTK_DIALOG( mpDialog ), GTK_RESPONSE_CANCEL );
+    gtk_widget_hide( mpDialog );
+}
+
+namespace
+{
+    class ExecuteInfo
+    {
+    private:
+        css::uno::Reference<css::frame::XDesktop> mxDesktop;
+    public:
+        ExecuteInfo(const css::uno::Reference<css::frame::XDesktop>& rDesktop)
+            : mxDesktop(rDesktop)
+        {
+        }
+        void terminate()
+        {
+            mxDesktop->terminate();
+        }
+    };
+}
+
+gint RunDialog::run()
+{
+    if (mxToolkit.is())
+        mxToolkit->addTopWindowListener(this);
+
+    mxDesktop->addTerminateListener(this);
+
+    // [Inc/Dec]ModalCount on parent frame so it knows it is in modal mode
+    GtkWindow* pParent = gtk_window_get_transient_for(GTK_WINDOW(mpDialog));
+    GtkSalFrame* pFrame = pParent ? GtkSalFrame::getFromWindow(GTK_WIDGET(pParent)) : nullptr;
+    VclPtr<vcl::Window> xFrameWindow = pFrame ? pFrame->GetWindow() : nullptr;
+    if (xFrameWindow)
+    {
+        xFrameWindow->IncModalCount();
+        xFrameWindow->ImplGetFrame()->NotifyModalHierarchy(true);
+    }
+
+    gint nStatus = gtk_dialog_run(GTK_DIALOG(mpDialog));
+
+    if (xFrameWindow)
+    {
+        xFrameWindow->DecModalCount();
+        xFrameWindow->ImplGetFrame()->NotifyModalHierarchy(false);
+    }
+
+    mxDesktop->removeTerminateListener(this);
+
+    if (mxToolkit.is())
+        mxToolkit->removeTopWindowListener(this);
+
+    if (mbTerminateDesktop)
+    {
+        ExecuteInfo* pExecuteInfo = new ExecuteInfo(mxDesktop);
+        Application::PostUserEvent(LINK(nullptr, RunDialog, TerminateDesktop), pExecuteInfo);
+    }
+
+    return nStatus;
+}
+
+IMPL_STATIC_LINK(RunDialog, TerminateDesktop, void*, p, void)
+{
+    ExecuteInfo* pExecuteInfo = static_cast<ExecuteInfo*>(p);
+    pExecuteInfo->terminate();
+    delete pExecuteInfo;
+}
+
+SalGtkPicker::SalGtkPicker( const uno::Reference<uno::XComponentContext>& xContext )
+    : m_pParentWidget(nullptr)
+    , m_pDialog(nullptr)
+    , m_xContext(xContext)
+{
+}
+
+SalGtkPicker::~SalGtkPicker()
+{
+    SolarMutexGuard g;
+
+    if (m_pDialog)
+    {
+#if !GTK_CHECK_VERSION(4, 0, 0)
+        gtk_widget_destroy(m_pDialog);
+#else
+        gtk_window_destroy(GTK_WINDOW(m_pDialog));
+#endif
+    }
+}
+
+void SalGtkPicker::implsetDisplayDirectory( const OUString& aDirectory )
+{
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    OString aTxt = unicodetouri(aDirectory);
+    if( aTxt.isEmpty() ){
+      aTxt = unicodetouri("file:///.");
+    }
+
+    if( aTxt.endsWith("/") )
+        aTxt = aTxt.copy( 0, aTxt.getLength() - 1 );
+
+    SAL_INFO( "vcl", "setting path to " << aTxt );
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GFile* pPath = g_file_new_for_uri(aTxt.getStr());
+    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_pDialog), pPath, nullptr);
+    g_object_unref(pPath);
+#else
+    gtk_file_chooser_set_current_folder_uri(GTK_FILE_CHOOSER(m_pDialog), aTxt.getStr());
+#endif
+}
+
+OUString SalGtkPicker::implgetDisplayDirectory()
+{
+    OSL_ASSERT( m_pDialog != nullptr );
+
+#if GTK_CHECK_VERSION(4, 0, 0)
+    GFile* pPath =
+        gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_pDialog));
+    gchar* pCurrentFolder = g_file_get_uri(pPath);
+    g_object_unref(pPath);
+#else
+    gchar* pCurrentFolder =
+        gtk_file_chooser_get_current_folder_uri(GTK_FILE_CHOOSER(m_pDialog));
+#endif
+    OUString aCurrentFolderName = uritounicode(pCurrentFolder);
+    g_free( pCurrentFolder );
+
+    return aCurrentFolderName;
+}
+
+void SalGtkPicker::implsetTitle( std::u16string_view aTitle )
+{
+    OSL_ASSERT( m_pDialog != nullptr );
+
+    OString aWindowTitle = OUStringToOString( aTitle, RTL_TEXTENCODING_UTF8 );
+
+    gtk_window_set_title( GTK_WINDOW( m_pDialog ), aWindowTitle.getStr() );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/SalGtkPicker.hxx b/vcl/unx/gtk3/fpicker/SalGtkPicker.hxx
new file mode 100644
index 000000000..7da0ba04e
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/SalGtkPicker.hxx
@@ -0,0 +1,144 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <osl/mutex.hxx>
+#include <tools/link.hxx>
+#include <cppuhelper/compbase.hxx>
+
+#include <com/sun/star/awt/XTopWindowListener.hpp>
+#include <com/sun/star/awt/XExtendedToolkit.hpp>
+#include <com/sun/star/frame/XDesktop.hpp>
+#include <com/sun/star/frame/XTerminateListener.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include <strings.hrc>
+#include <svdata.hxx>
+
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+
+#define FOLDERPICKER_TITLE              500
+#define FOLDER_PICKER_DEF_DESCRIPTION   501
+#define FILE_PICKER_TITLE_OPEN          502
+#define FILE_PICKER_TITLE_SAVE          503
+#define FILE_PICKER_FILE_TYPE           504
+#define FILE_PICKER_OVERWRITE_PRIMARY   505
+#define FILE_PICKER_OVERWRITE_SECONDARY 506
+#define FILE_PICKER_ALLFORMATS          507
+
+class SalGtkPicker
+{
+    public:
+                 SalGtkPicker( const css::uno::Reference<css::uno::XComponentContext>& xContext );
+        virtual ~SalGtkPicker();
+    protected:
+        osl::Mutex m_rbHelperMtx;
+        GtkWidget  *m_pParentWidget;
+        GtkWidget  *m_pDialog;
+    protected:
+        /// @throws css::uno::RuntimeException
+        void implsetTitle( std::u16string_view aTitle );
+
+        /// @throws css::lang::IllegalArgumentException
+        /// @throws css::uno::RuntimeException
+        void implsetDisplayDirectory( const OUString& rDirectory );
+
+        /// @throws css::uno::RuntimeException
+        OUString implgetDisplayDirectory(  );
+        OUString uritounicode(const gchar *pIn) const;
+        OString unicodetouri(const OUString &rURL) const;
+
+        // to instantiate own services
+        css::uno::Reference< css::uno::XComponentContext > m_xContext;
+
+        static GtkWidget* GetParentWidget(const css::uno::Sequence<css::uno::Any>& rArguments);
+
+        static OUString getResString( sal_Int32 aId );
+};
+
+//Run the Gtk Dialog. Watch for any "new windows" created while we're
+//executing and consider that a CANCEL event to avoid e.g. "file cannot be opened"
+//modal dialogs and this one getting locked if some other API call causes this
+//to happen while we're opened waiting for user input, e.g.
+//https://bugzilla.redhat.com/show_bug.cgi?id=441108
+class RunDialog :
+    public cppu::WeakComponentImplHelper<
+        css::awt::XTopWindowListener,
+        css::frame::XTerminateListener >
+{
+private:
+    osl::Mutex maLock;
+    GtkWidget *mpDialog;
+    bool mbTerminateDesktop;
+    css::uno::Reference<css::awt::XExtendedToolkit> mxToolkit;
+    css::uno::Reference<css::frame::XDesktop> mxDesktop;
+    DECL_STATIC_LINK(RunDialog, TerminateDesktop, void*, void);
+public:
+
+    // XTopWindowListener
+    using cppu::WeakComponentImplHelperBase::disposing;
+    virtual void SAL_CALL disposing( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowOpened( const css::lang::EventObject& e ) override;
+    virtual void SAL_CALL windowClosing( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowClosed( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowMinimized( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowNormalized( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowActivated( const css::lang::EventObject& ) override {}
+    virtual void SAL_CALL windowDeactivated( const css::lang::EventObject& ) override {}
+
+    // XTerminateListener
+    virtual void SAL_CALL queryTermination( const css::lang::EventObject& aEvent ) override;
+    virtual void SAL_CALL notifyTermination( const css::lang::EventObject& aEvent ) override;
+public:
+    RunDialog(GtkWidget *pDialog,
+        const css::uno::Reference<css::awt::XExtendedToolkit>& rToolkit,
+        const css::uno::Reference<css::frame::XDesktop>& rDesktop);
+    virtual ~RunDialog() override;
+    gint run();
+    void cancel();
+    static GtkWindow* GetTransientFor();
+};
+
+inline OString getCancelText()
+{
+    return VclResId(SV_BUTTONTEXT_CANCEL).replace('~', '_').toUtf8();
+}
+
+inline OString getOpenText()
+{
+    return VclResId(SV_BUTTONTEXT_OPEN).replace('~', '_').toUtf8();
+}
+
+inline OString getSaveText()
+{
+    return VclResId(SV_BUTTONTEXT_SAVE).replace('~', '_').toUtf8();
+}
+
+inline OString getOKText()
+{
+    return VclResId(SV_BUTTONTEXT_OK).replace('~', '_').toUtf8();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/eventnotification.hxx b/vcl/unx/gtk3/fpicker/eventnotification.hxx
new file mode 100644
index 000000000..214da6da9
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/eventnotification.hxx
@@ -0,0 +1,41 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/XInterface.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+
+// encapsulate a filepicker event
+// notification, because there are
+// two types of filepicker notifications
+// with and without parameter
+// this is an application of the
+// "command" pattern see GoF
+
+class CEventNotification
+{
+public:
+    virtual ~CEventNotification(){};
+
+    virtual void SAL_CALL notifyEventListener(css::uno::Reference<css::uno::XInterface> xListener)
+        = 0;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/unx/gtk3/fpicker/resourceprovider.cxx b/vcl/unx/gtk3/fpicker/resourceprovider.cxx
new file mode 100644
index 000000000..fa90b8126
--- /dev/null
+++ b/vcl/unx/gtk3/fpicker/resourceprovider.cxx
@@ -0,0 +1,80 @@
+/* -*- 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 <com/sun/star/ui/dialogs/CommonFilePickerElementIds.hpp>
+#include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>
+
+#include <fpicker/strings.hrc>
+#include <fpicker/fpsofficeResMgr.hxx>
+#include "SalGtkPicker.hxx"
+
+using namespace ::com::sun::star::ui::dialogs::ExtendedFilePickerElementIds;
+using namespace ::com::sun::star::ui::dialogs::CommonFilePickerElementIds;
+
+// translate control ids to resource ids
+
+const struct
+{
+    sal_Int32 ctrlId;
+    TranslateId resId;
+} CtrlIdToResIdTable[] = {
+    { CHECKBOX_AUTOEXTENSION,                   STR_SVT_FILEPICKER_AUTO_EXTENSION },
+    { CHECKBOX_PASSWORD,                        STR_SVT_FILEPICKER_PASSWORD },
+    { CHECKBOX_GPGENCRYPTION,                   STR_SVT_FILEPICKER_GPGENCRYPT },
+    { CHECKBOX_FILTEROPTIONS,                   STR_SVT_FILEPICKER_FILTER_OPTIONS },
+    { CHECKBOX_READONLY,                        STR_SVT_FILEPICKER_READONLY },
+    { CHECKBOX_LINK,                            STR_SVT_FILEPICKER_INSERT_AS_LINK },
+    { CHECKBOX_PREVIEW,                         STR_SVT_FILEPICKER_SHOW_PREVIEW },
+    { PUSHBUTTON_PLAY,                          STR_SVT_FILEPICKER_PLAY },
+    { LISTBOX_VERSION_LABEL,                    STR_SVT_FILEPICKER_VERSION },
+    { LISTBOX_TEMPLATE_LABEL,                   STR_SVT_FILEPICKER_TEMPLATES },
+    { LISTBOX_IMAGE_TEMPLATE_LABEL,             STR_SVT_FILEPICKER_IMAGE_TEMPLATE },
+    { LISTBOX_IMAGE_ANCHOR_LABEL,               STR_SVT_FILEPICKER_IMAGE_ANCHOR },
+    { CHECKBOX_SELECTION,                       STR_SVT_FILEPICKER_SELECTION },
+    { FOLDERPICKER_TITLE,                       STR_SVT_FOLDERPICKER_DEFAULT_TITLE },
+    { FOLDER_PICKER_DEF_DESCRIPTION,            STR_SVT_FOLDERPICKER_DEFAULT_DESCRIPTION },
+    { FILE_PICKER_OVERWRITE_PRIMARY,            STR_SVT_ALREADYEXISTOVERWRITE },
+    { FILE_PICKER_OVERWRITE_SECONDARY,          STR_SVT_ALREADYEXISTOVERWRITE_SECONDARY },
+    { FILE_PICKER_ALLFORMATS,                   STR_SVT_ALLFORMATS },
+    { FILE_PICKER_TITLE_OPEN,                   STR_FILEDLG_OPEN },
+    { FILE_PICKER_TITLE_SAVE,                   STR_FILEDLG_SAVE },
+    { FILE_PICKER_FILE_TYPE,                    STR_FILEDLG_TYPE }
+};
+
+static TranslateId CtrlIdToResId( sal_Int32 aControlId )
+{
+    for (auto & i : CtrlIdToResIdTable)
+    {
+        if ( i.ctrlId == aControlId )
+            return i.resId;
+    }
+    return {};
+}
+
+OUString SalGtkPicker::getResString( sal_Int32 aId )
+{
+    OUString aResString;
+    // translate the control id to a resource id
+    TranslateId pResId = CtrlIdToResId( aId );
+    if (pResId)
+        aResString = FpsResId(pResId);
+    return aResString.replace('~', '_');
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */