Quelle  gtkframe.cxx   Sprache: C

/* -*- 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 <config_version.h>

#include <unx/gtk/gtkframe.hxx>
#include <unx/gtk/gtkdata.hxx>
#include <unx/gtk/gtkinst.hxx>
#include <unx/gtk/gtkgdi.hxx>
#include <unx/gtk/gtksalmenu.hxx>
#include <unx/gtk/hudawareness.h>
#include <vcl/event.hxx>
#include <vcl/i18nhelp.hxx>
#include <vcl/keycodes.hxx>
#include <unx/geninst.h>
#include <headless/svpgdi.hxx>
#include <sal/log.hxx>
#include <comphelper/diagnose_ex.hxx>
#include <vcl/toolkit/floatwin.hxx>
#include <vcl/toolkit/unowrap.hxx>
#include <vcl/svapp.hxx>
#include <vcl/weld.hxx>
#include <vcl/window.hxx>
#include <vcl/settings.hxx>

#include <gtk/gtk.h>

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <unx/gtk/gtkbackend.hxx>

#include <strings.hrc>
#include <window.h>

#include <basegfx/vector/b2ivector.hxx>
#include <officecfg/Office/Common.hxx>

#include <dlfcn.h>

#include <algorithm>

#if OSL_DEBUG_LEVEL > 1
#  include <cstdio>
#endif

#include <i18nlangtag/mslangid.hxx>

#include <cstdlib>
#include <cmath>

#include <com/sun/star/awt/MouseButton.hpp>
#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/util/XModifiable.hpp>

#if !GTK_CHECK_VERSION(4, 0, 0)
#   define GDK_ALT_MASK GDK_MOD1_MASK
#   define GDK_TOPLEVEL_STATE_MAXIMIZED GDK_WINDOW_STATE_MAXIMIZED
#   define GDK_TOPLEVEL_STATE_MINIMIZED GDK_WINDOW_STATE_ICONIFIED
#   define gdk_wayland_surface_get_wl_surface gdk_wayland_window_get_wl_surface
#   define gdk_x11_surface_get_xid gdk_x11_window_get_xid
#endif

using namespace com::sun::star;

int GtkSalFrame::m_nFloats = 0;

static GDBusConnection* pSessionBus = nullptr;

static void EnsureSessionBus()
{
    if (!pSessionBus)
        pSessionBus = g_bus_get_sync(G_BUS_TYPE_SESSION, nullptr, nullptr);
}

sal_uInt16 GtkSalFrame::GetKeyModCode( guint state )
{
    sal_uInt16 nCode = 0;
    if( state & GDK_SHIFT_MASK )
        nCode |= KEY_SHIFT;
    if( state & GDK_CONTROL_MASK )
        nCode |= KEY_MOD1;
    if (state & GDK_ALT_MASK)
        nCode |= KEY_MOD2;
    if( state & GDK_SUPER_MASK )
        nCode |= KEY_MOD3;
    return nCode;
}

sal_uInt16 GtkSalFrame::GetMouseModCode( guint state )
{
    sal_uInt16 nCode = GetKeyModCode( state );
    if( state & GDK_BUTTON1_MASK )
        nCode |= MOUSE_LEFT;
    if( state & GDK_BUTTON2_MASK )
        nCode |= MOUSE_MIDDLE;
    if( state & GDK_BUTTON3_MASK )
        nCode |= MOUSE_RIGHT;

    return nCode;
}

// KEY_F26 is the last function key known to keycodes.hxx
static bool IsFunctionKeyVal(guint keyval)
{
    return keyval >= GDK_KEY_F1 && keyval <= GDK_KEY_F26;
}

sal_uInt16 GtkSalFrame::GetKeyCode(guint keyval)
{
    sal_uInt16 nCode = 0;
    if( keyval >= GDK_KEY_0 && keyval <= GDK_KEY_9 )
        nCode = KEY_0 + (keyval-GDK_KEY_0);
    else if( keyval >= GDK_KEY_KP_0 && keyval <= GDK_KEY_KP_9 )
        nCode = KEY_0 + (keyval-GDK_KEY_KP_0);
    else if( keyval >= GDK_KEY_A && keyval <= GDK_KEY_Z )
        nCode = KEY_A + (keyval-GDK_KEY_A );
    else if( keyval >= GDK_KEY_a && keyval <= GDK_KEY_z )
        nCode = KEY_A + (keyval-GDK_KEY_a );
    else if (IsFunctionKeyVal(keyval))
    {
        switch( keyval )
        {
            // - - - - - Sun keyboard, see vcl/unx/source/app/saldisp.cxx
            // although GDK_KEY_F1 ... GDK_KEY_L10 are known to
            // gdk/gdkkeysyms.h, they are unlikely to be generated
            // except possibly by Solaris systems
            // this whole section needs review
            case GDK_KEY_L2:
                    nCode = KEY_F12;
                break;
            case GDK_KEY_L3:            nCode = KEY_PROPERTIES; break;
            case GDK_KEY_L4:            nCode = KEY_UNDO;       break;
            case GDK_KEY_L6:            nCode = KEY_COPY;       break; // KEY_F16
            case GDK_KEY_L8:            nCode = KEY_PASTE;      break; // KEY_F18
            case GDK_KEY_L10:           nCode = KEY_CUT;        break; // KEY_F20
            default:
                nCode = KEY_F1 + (keyval-GDK_KEY_F1);           break;
        }
    }
    else
    {
        switch( keyval )
        {
            case GDK_KEY_KP_Down:
            case GDK_KEY_Down:          nCode = KEY_DOWN;       break;
            case GDK_KEY_KP_Up:
            case GDK_KEY_Up:            nCode = KEY_UP;         break;
            case GDK_KEY_KP_Left:
            case GDK_KEY_Left:          nCode = KEY_LEFT;       break;
            case GDK_KEY_KP_Right:
            case GDK_KEY_Right:         nCode = KEY_RIGHT;      break;
            case GDK_KEY_KP_Begin:
            case GDK_KEY_KP_Home:
            case GDK_KEY_Begin:
            case GDK_KEY_Home:          nCode = KEY_HOME;       break;
            case GDK_KEY_KP_End:
            case GDK_KEY_End:           nCode = KEY_END;        break;
            case GDK_KEY_KP_Page_Up:
            case GDK_KEY_Page_Up:       nCode = KEY_PAGEUP;     break;
            case GDK_KEY_KP_Page_Down:
            case GDK_KEY_Page_Down:     nCode = KEY_PAGEDOWN;   break;
            case GDK_KEY_KP_Enter:
            case GDK_KEY_Return:        nCode = KEY_RETURN;     break;
            case GDK_KEY_Escape:        nCode = KEY_ESCAPE;     break;
            case GDK_KEY_ISO_Left_Tab:
            case GDK_KEY_KP_Tab:
            case GDK_KEY_Tab:           nCode = KEY_TAB;        break;
            case GDK_KEY_BackSpace:     nCode = KEY_BACKSPACE;  break;
            case GDK_KEY_KP_Space:
            case GDK_KEY_space:         nCode = KEY_SPACE;      break;
            case GDK_KEY_KP_Insert:
            case GDK_KEY_Insert:        nCode = KEY_INSERT;     break;
            case GDK_KEY_KP_Delete:
            case GDK_KEY_Delete:        nCode = KEY_DELETE;     break;
            case GDK_KEY_plus:
            case GDK_KEY_KP_Add:        nCode = KEY_ADD;        break;
            case GDK_KEY_minus:
            case GDK_KEY_KP_Subtract:   nCode = KEY_SUBTRACT;   break;
            case GDK_KEY_asterisk:
            case GDK_KEY_KP_Multiply:   nCode = KEY_MULTIPLY;   break;
            case GDK_KEY_slash:
            case GDK_KEY_KP_Divide:     nCode = KEY_DIVIDE;     break;
            case GDK_KEY_period:        nCode = KEY_POINT;      break;
            case GDK_KEY_decimalpoint:  nCode = KEY_POINT;      break;
            case GDK_KEY_comma:         nCode = KEY_COMMA;      break;
            case GDK_KEY_less:          nCode = KEY_LESS;       break;
            case GDK_KEY_greater:       nCode = KEY_GREATER;    break;
            case GDK_KEY_KP_Equal:
            case GDK_KEY_equal:         nCode = KEY_EQUAL;      break;
            case GDK_KEY_Find:          nCode = KEY_FIND;       break;
            case GDK_KEY_Menu:          nCode = KEY_CONTEXTMENU;break;
            case GDK_KEY_Help:          nCode = KEY_HELP;       break;
            case GDK_KEY_Undo:          nCode = KEY_UNDO;       break;
            case GDK_KEY_Redo:          nCode = KEY_REPEAT;     break;
            // on a sun keyboard this actually is usually SunXK_Stop = 0x0000FF69 (XK_Cancel),
            // but VCL doesn't have a key definition for that
            case GDK_KEY_Cancel:        nCode = KEY_F11;        break;
            case GDK_KEY_KP_Decimal:
            case GDK_KEY_KP_Separator:  nCode = KEY_DECIMAL;    break;
            case GDK_KEY_asciitilde:    nCode = KEY_TILDE;      break;
            case GDK_KEY_leftsinglequotemark:
            case GDK_KEY_quoteleft:    nCode = KEY_QUOTELEFT;    break;
            case GDK_KEY_bracketleft:  nCode = KEY_BRACKETLEFT;  break;
            case GDK_KEY_bracketright: nCode = KEY_BRACKETRIGHT; break;
            case GDK_KEY_semicolon:    nCode = KEY_SEMICOLON;    break;
            case GDK_KEY_quoteright:   nCode = KEY_QUOTERIGHT;   break;
            case GDK_KEY_braceright:   nCode = KEY_RIGHTCURLYBRACKET;   break;
            case GDK_KEY_numbersign:   nCode = KEY_NUMBERSIGN; break;
            case GDK_KEY_Forward:      nCode = KEY_XF86FORWARD; break;
            case GDK_KEY_Back:         nCode = KEY_XF86BACK; break;
            case GDK_KEY_colon:    nCode = KEY_COLON;    break;
            // some special cases, also see saldisp.cxx
            // - - - - - - - - - - - - -  Apollo - - - - - - - - - - - - - 0x1000
            // These can be found in ap_keysym.h
            case 0x1000FF02: // apXK_Copy
                nCode = KEY_COPY;
                break;
            case 0x1000FF03: // apXK_Cut
                nCode = KEY_CUT;
                break;
            case 0x1000FF04: // apXK_Paste
                nCode = KEY_PASTE;
                break;
            case 0x1000FF14: // apXK_Repeat
                nCode = KEY_REPEAT;
                break;
            // Exit, Save
            // - - - - - - - - - - - - - - D E C - - - - - - - - - - - - - 0x1000
            // These can be found in DECkeysym.h
            case 0x1000FF00:
                nCode = KEY_DELETE;
                break;
            // - - - - - - - - - - - - - -  H P  - - - - - - - - - - - - - 0x1000
            // These can be found in HPkeysym.h
            case 0x1000FF73: // hpXK_DeleteChar
                nCode = KEY_DELETE;
                break;
            case 0x1000FF74: // hpXK_BackTab
            case 0x1000FF75: // hpXK_KP_BackTab
                nCode = KEY_TAB;
                break;
            // - - - - - - - - - - - - - - I B M - - - - - - - - - - - - -
            // - - - - - - - - - - - - - - O S F - - - - - - - - - - - - - 0x1004
            // These also can be found in HPkeysym.h
            case 0x1004FF02: // osfXK_Copy
                nCode = KEY_COPY;
                break;
            case 0x1004FF03: // osfXK_Cut
                nCode = KEY_CUT;
                break;
            case 0x1004FF04: // osfXK_Paste
                nCode = KEY_PASTE;
                break;
            case 0x1004FF07: // osfXK_BackTab
                nCode = KEY_TAB;
                break;
            case 0x1004FF08: // osfXK_BackSpace
                nCode = KEY_BACKSPACE;
                break;
            case 0x1004FF1B: // osfXK_Escape
                nCode = KEY_ESCAPE;
                break;
            // Up, Down, Left, Right, PageUp, PageDown
            // - - - - - - - - - - - - - - S C O - - - - - - - - - - - - -
            // - - - - - - - - - - - - - - S G I - - - - - - - - - - - - - 0x1007
            // - - - - - - - - - - - - - - S N I - - - - - - - - - - - - -
            // - - - - - - - - - - - - - - S U N - - - - - - - - - - - - - 0x1005
            // These can be found in Sunkeysym.h
            case 0x1005FF10: // SunXK_F36
                nCode = KEY_F11;
                break;
            case 0x1005FF11: // SunXK_F37
                nCode = KEY_F12;
                break;
            case 0x1005FF70: // SunXK_Props
                nCode = KEY_PROPERTIES;
                break;
            case 0x1005FF71: // SunXK_Front
                nCode = KEY_FRONT;
                break;
            case 0x1005FF72: // SunXK_Copy
                nCode = KEY_COPY;
                break;
            case 0x1005FF73: // SunXK_Open
                nCode = KEY_OPEN;
                break;
            case 0x1005FF74: // SunXK_Paste
                nCode = KEY_PASTE;
                break;
            case 0x1005FF75: // SunXK_Cut
                nCode = KEY_CUT;
                break;
            // - - - - - - - - - - - - - X F 8 6 - - - - - - - - - - - - - 0x1008
            // These can be found in XF86keysym.h
            // but more importantly they are also available GTK/Gdk version 3
            // and hence are already provided in gdk/gdkkeysyms.h, and hence
            // in gdk/gdk.h
            case GDK_KEY_Copy:          nCode = KEY_COPY;  break; // 0x1008ff57
            case GDK_KEY_Cut:           nCode = KEY_CUT;   break; // 0x1008ff58
            case GDK_KEY_Open:          nCode = KEY_OPEN;  break; // 0x1008ff6b
            case GDK_KEY_Paste:         nCode = KEY_PASTE; break; // 0x1008ff6d
        }
    }

    return nCode;
}

#if !GTK_CHECK_VERSION(4, 0, 0)
guint GtkSalFrame::GetKeyValFor(GdkKeymap* pKeyMap, guint16 hardware_keycode, guint8 group)
{
    guint updated_keyval = 0;
    gdk_keymap_translate_keyboard_state(pKeyMap, hardware_keycode,
        GdkModifierType(0), group, &updated_keyval, nullptr, nullptr, nullptr);
    return updated_keyval;
}
#endif

namespace {

// F10 means either KEY_F10 or KEY_MENU, which has to be decided
// in the independent part.
struct KeyAlternate
{
    sal_uInt16          nKeyCode;
    sal_Unicode     nCharCode;
    KeyAlternate() : nKeyCode( 0 ), nCharCode( 0 ) {}
    KeyAlternate( sal_uInt16 nKey, sal_Unicode nChar = 0 ) : nKeyCode( nKey ), nCharCode( nChar ) {}
};

}

static KeyAlternate
GetAlternateKeyCode( const sal_uInt16 nKeyCode )
{
    KeyAlternate aAlternate;

    switch( nKeyCode )
    {
        case KEY_F10: aAlternate = KeyAlternate( KEY_MENU );break;
        case KEY_F24: aAlternate = KeyAlternate( KEY_SUBTRACT, '-' );break;
    }

    return aAlternate;
}

#if OSL_DEBUG_LEVEL > 0
static bool dumpframes = false;
#endif

bool GtkSalFrame::doKeyCallback( guint state,
                                 guint keyval,
                                 guint16 hardware_keycode,
                                 guint8 group,
                                 sal_Unicode aOrigCode,
                                 bool bDown,
                                 bool bSendRelease
                                 )
{
    SalKeyEvent aEvent;

    aEvent.mnCharCode       = aOrigCode;
    aEvent.mnRepeat         = 0;

    vcl::DeletionListener aDel( this );

#if OSL_DEBUG_LEVEL > 0
    const char* pKeyDebug = getenv("VCL_GTK3_PAINTDEBUG");

    if (pKeyDebug && *pKeyDebug == '1')
    {
        if (bDown)
        {
            // shift-zero forces a re-draw and event is swallowed
            if (keyval == GDK_KEY_0)
            {
                SAL_INFO("vcl.gtk3", "force widget_queue_draw.");
                gtk_widget_queue_draw(GTK_WIDGET(m_pDrawingArea));
                return false;
            }
            else if (keyval == GDK_KEY_1)
            {
                SAL_INFO("vcl.gtk3", "force repaint all.");
                TriggerPaintEvent();
                return false;
            }
            else if (keyval == GDK_KEY_2)
            {
                dumpframes = !dumpframes;
                SAL_INFO("vcl.gtk3", "toggle dump frames to " << dumpframes);
                return false;
            }
        }
    }
#endif

    /*
     *  #i42122# translate all keys with Ctrl and/or Alt to group 0 else
     *  shortcuts (e.g. Ctrl-o) will not work but be inserted by the
     *  application
     *
     *  #i52338# do this for all keys that the independent part has no key code
     *  for
     *
     *  fdo#41169 rather than use group 0, detect if there is a group which can
     *  be used to input Latin text and use that if possible
     */
    aEvent.mnCode = GetKeyCode( keyval );
#if !GTK_CHECK_VERSION(4, 0, 0)
    if( aEvent.mnCode == 0 )
    {
        gint best_group = SAL_MAX_INT32;

        // Try and find Latin layout
        GdkKeymap* keymap = gdk_keymap_get_default();
        GdkKeymapKey *keys;
        gint n_keys;
        if (gdk_keymap_get_entries_for_keyval(keymap, GDK_KEY_A, &keys, &n_keys))
        {
            // Find the lowest group that supports Latin layout
            for (gint i = 0; i < n_keys; ++i)
            {
                if (keys[i].level != 0 && keys[i].level != 1)
                    continue;
                best_group = std::min(best_group, keys[i].group);
                if (best_group == 0)
                    break;
            }
            g_free(keys);
        }

        //Unavailable, go with original group then I suppose
        if (best_group == SAL_MAX_INT32)
            best_group = group;

        guint updated_keyval = GetKeyValFor(keymap, hardware_keycode, best_group);
        aEvent.mnCode = GetKeyCode(updated_keyval);
    }
#else
    (void)hardware_keycode;
    (void)group;
#endif

    aEvent.mnCode   |= GetKeyModCode( state );

    bool bStopProcessingKey;
    if (bDown)
    {
        // tdf#152404 Commit uncommitted text before dispatching key shortcuts. In
        // certain cases such as pressing Control-Alt-C in a Writer document while
        // there is uncommitted text will call GtkSalFrame::EndExtTextInput() which
        // will dispatch a SalEvent::EndExtTextInput event. Writer's handler for that
        // event will delete the uncommitted text and then insert the committed text
        // but LibreOffice will crash when deleting the uncommitted text because
        // deletion of the text also removes and deletes the newly inserted comment.
        if (m_pIMHandler && !m_pIMHandler->m_aInputEvent.maText.isEmpty() && (aEvent.mnCode & (KEY_MOD1 | KEY_MOD2)))
            m_pIMHandler->doCallEndExtTextInput();

        bStopProcessingKey = CallCallbackExc(SalEvent::KeyInput, &aEvent);
        // #i46889# copy AlternateKeyCode handling from generic plugin
        if (!bStopProcessingKey)
        {
            KeyAlternate aAlternate = GetAlternateKeyCode( aEvent.mnCode );
            if( aAlternate.nKeyCode )
            {
                aEvent.mnCode = aAlternate.nKeyCode;
                if( aAlternate.nCharCode )
                    aEvent.mnCharCode = aAlternate.nCharCode;
                bStopProcessingKey = CallCallbackExc(SalEvent::KeyInput, &aEvent);
            }
        }
        if( bSendRelease && ! aDel.isDeleted() )
        {
            CallCallbackExc(SalEvent::KeyUp, &aEvent);
        }
    }
    else
        bStopProcessingKey = CallCallbackExc(SalEvent::KeyUp, &aEvent);
    return bStopProcessingKey;
}

GtkSalFrame::GtkSalFrame( SalFrame* pParent, SalFrameStyleFlags nStyle )
    : m_nXScreen( getDisplay()->GetDefaultXScreen() )
    , m_pHeaderBar(nullptr)
    , m_bGraphics(false)
    , m_nSetFocusSignalId(0)
#if !GTK_CHECK_VERSION(4, 0, 0)
    , m_aSmoothScrollIdle("GtkSalFrame m_aSmoothScrollIdle")
#endif
{
    getDisplay()->registerFrame( this );
    m_bDefaultPos       = true;
    m_bDefaultSize      = ( (nStyle & SalFrameStyleFlags::SIZEABLE) && ! pParent );
    Init( pParent, nStyle );
}

GtkSalFrame::GtkSalFrame( SystemParentData* pSysData )
    : m_nXScreen( getDisplay()->GetDefaultXScreen() )
    , m_pHeaderBar(nullptr)
    , m_bGraphics(false)
    , m_nSetFocusSignalId(0)
#if !GTK_CHECK_VERSION(4, 0, 0)
    , m_aSmoothScrollIdle("GtkSalFrame m_aSmoothScrollIdle")
#endif
{
    getDisplay()->registerFrame( this );
    // permanently ignore errors from our unruly children ...
    GetGenericUnixSalData()->ErrorTrapPush();
    m_bDefaultPos       = true;
    m_bDefaultSize      = true;
    Init( pSysData );
}

// AppMenu watch functions.

static void ObjectDestroyedNotify( gpointer data )
{
    if ( data ) {
        g_object_unref( data );
    }
}

#if !GTK_CHECK_VERSION(4,0,0)
static void hud_activated( gboolean hud_active, gpointer user_data )
{
    if ( hud_active )
    {
        SolarMutexGuard aGuard;
        GtkSalFrame* pSalFrame = static_cast< GtkSalFrame* >( user_data );
        GtkSalMenu* pSalMenu = reinterpret_cast< GtkSalMenu* >( pSalFrame->GetMenu() );

        if ( pSalMenu )
            pSalMenu->UpdateFull();
    }
}
#endif

static void attach_menu_model(GtkSalFrame* pSalFrame)
{
    GtkWidget* pWidget = pSalFrame->getWindow();
    GdkSurface* gdkWindow = widget_get_surface(pWidget);

    if ( gdkWindow == nullptr || g_object_get_data( G_OBJECT( gdkWindow ), "g-lo-menubar" ) != nullptr )
        return;

    // Create menu model and action group attached to this frame.
    GMenuModel* pMenuModel = G_MENU_MODEL( g_lo_menu_new() );
    GActionGroup* pActionGroup = reinterpret_cast<GActionGroup*>(g_lo_action_group_new());

    // Set window properties.
    g_object_set_data_full( G_OBJECT( gdkWindow ), "g-lo-menubar", pMenuModel, ObjectDestroyedNotify );
    g_object_set_data_full( G_OBJECT( gdkWindow ), "g-lo-action-group", pActionGroup, ObjectDestroyedNotify );

#if !GTK_CHECK_VERSION(4,0,0)
    // Get a DBus session connection.
    EnsureSessionBus();
    if (!pSessionBus)
        return;

    // Generate menu paths.
    sal_uIntPtr windowId = GtkSalFrame::GetNativeWindowHandle(pWidget);
    gchar* aDBusWindowPath = g_strdup_printf( "/org/libreoffice/window/%lu", windowId );
    gchar* aDBusMenubarPath = g_strdup_printf( "/org/libreoffice/window/%lu/menus/menubar", windowId );

    GdkDisplay *pDisplay = GtkSalFrame::getGdkDisplay();
#if defined(GDK_WINDOWING_X11)
    if (DLSYM_GDK_IS_X11_DISPLAY(pDisplay))
    {
        gdk_x11_window_set_utf8_property( gdkWindow, "_GTK_APPLICATION_ID", "org.libreoffice" );
        gdk_x11_window_set_utf8_property( gdkWindow, "_GTK_MENUBAR_OBJECT_PATH", aDBusMenubarPath );
        gdk_x11_window_set_utf8_property( gdkWindow, "_GTK_WINDOW_OBJECT_PATH", aDBusWindowPath );
        gdk_x11_window_set_utf8_property( gdkWindow, "_GTK_APPLICATION_OBJECT_PATH", "/org/libreoffice" );
        gdk_x11_window_set_utf8_property( gdkWindow, "_GTK_UNIQUE_BUS_NAME", g_dbus_connection_get_unique_name( pSessionBus ) );
    }
#endif
#if defined(GDK_WINDOWING_WAYLAND)
    if (DLSYM_GDK_IS_WAYLAND_DISPLAY(pDisplay))
    {
        gdk_wayland_window_set_dbus_properties_libgtk_only(gdkWindow, "org.libreoffice",
                                                           nullptr,
                                                           aDBusMenubarPath,
                                                           aDBusWindowPath,
                                                           "/org/libreoffice",
                                                           g_dbus_connection_get_unique_name( pSessionBus ));
    }
#endif
    // Publish the menu model and the action group.
    SAL_INFO("vcl.unity", "exporting menu model at " << pMenuModel << " for window " << windowId);
    pSalFrame->m_nMenuExportId = g_dbus_connection_export_menu_model (pSessionBus, aDBusMenubarPath, pMenuModel, nullptr);
    SAL_INFO("vcl.unity", "exporting action group at " << pActionGroup << " for window " << windowId);
    pSalFrame->m_nActionGroupExportId = g_dbus_connection_export_action_group( pSessionBus, aDBusWindowPath, pActionGroup, nullptr);
    pSalFrame->m_nHudAwarenessId = hud_awareness_register( pSessionBus, aDBusMenubarPath, hud_activated, pSalFrame, nullptr, nullptr );

    g_free( aDBusWindowPath );
    g_free( aDBusMenubarPath );
#endif
}

void on_registrar_available( GDBusConnection * /*connection*/,
                             const gchar     * /*name*/,
                             const gchar     * /*name_owner*/,
                             gpointer         user_data )
{
    SolarMutexGuard aGuard;

    GtkSalFrame* pSalFrame = static_cast< GtkSalFrame* >( user_data );

    SalMenu* pSalMenu = pSalFrame->GetMenu();

    if ( pSalMenu != nullptr )
    {
        GtkSalMenu* pGtkSalMenu = static_cast<GtkSalMenu*>(pSalMenu);
        pGtkSalMenu->EnableUnity(true);
    }
}

// This is called when the registrar becomes unavailable. It shows the menubar.
void on_registrar_unavailable( GDBusConnection * /*connection*/,
                               const gchar     * /*name*/,
                               gpointer         user_data )
{
    SolarMutexGuard aGuard;

    SAL_INFO("vcl.unity", "on_registrar_unavailable");

    GtkSalFrame* pSalFrame = static_cast< GtkSalFrame* >( user_data );

    SalMenu* pSalMenu = pSalFrame->GetMenu();

    if ( pSalMenu ) {
        GtkSalMenu* pGtkSalMenu = static_cast< GtkSalMenu* >( pSalMenu );
        pGtkSalMenu->EnableUnity(false);
    }
}

void GtkSalFrame::EnsureAppMenuWatch()
{
    if ( m_nWatcherId )
        return;

    // Get a DBus session connection.
    EnsureSessionBus();
    if (!pSessionBus)
        return;

    // Publish the menu only if AppMenu registrar is available.
    m_nWatcherId = g_bus_watch_name_on_connection( pSessionBus,
                                                   "com.canonical.AppMenu.Registrar",
                                                   G_BUS_NAME_WATCHER_FLAGS_NONE,
                                                   on_registrar_available,
                                                   on_registrar_unavailable,
                                                   this,
                                                   nullptr );
}

void GtkSalFrame::InvalidateGraphics()
{
    if( m_pGraphics )
    {
        m_bGraphics = false;
    }
}

GtkSalFrame::~GtkSalFrame()
{
#if !GTK_CHECK_VERSION(4,0,0)
    m_aSmoothScrollIdle.Stop();
    m_aSmoothScrollIdle.ClearInvokeHandler();
#endif

    if (m_pDropTarget)
    {
        m_pDropTarget->deinitialize();
        m_pDropTarget = nullptr;
    }

    if (m_pDragSource)
    {
        m_pDragSource->deinitialize();
        m_pDragSource= nullptr;
    }

    InvalidateGraphics();

    if (m_pParent)
    {
        m_pParent->m_aChildren.remove( this );
    }

    getDisplay()->deregisterFrame( this );

    if( m_pRegion )
    {
        cairo_region_destroy( m_pRegion );
    }

    m_pIMHandler.reset();

    //tdf#108705 remove grabs on event widget before
    //destroying event widget
    while (m_nGrabLevel)
        removeGrabLevel();

    {
        SolarMutexGuard aGuard;

        if (m_nWatcherId)
            g_bus_unwatch_name(m_nWatcherId);

        if (m_nPortalSettingChangedSignalId)
            g_signal_handler_disconnect(m_pSettingsPortal, m_nPortalSettingChangedSignalId);

        if (m_pSettingsPortal)
            g_object_unref(m_pSettingsPortal);

        if (m_nSessionClientSignalId)
            g_signal_handler_disconnect(m_pSessionClient, m_nSessionClientSignalId);

        if (m_pSessionClient)
            g_object_unref(m_pSessionClient);

        if (m_pSessionManager)
            g_object_unref(m_pSessionManager);
    }

    GtkWidget *pEventWidget = getMouseEventWidget();
    for (auto handler_id : m_aMouseSignalIds)
        g_signal_handler_disconnect(G_OBJECT(pEventWidget), handler_id);

#if !GTK_CHECK_VERSION(4, 0, 0)
    if( m_pFixedContainer )
        gtk_widget_destroy( GTK_WIDGET( m_pFixedContainer ) );
    if( m_pEventBox )
        gtk_widget_destroy( GTK_WIDGET(m_pEventBox) );
    if( m_pTopLevelGrid )
        gtk_widget_destroy( GTK_WIDGET(m_pTopLevelGrid) );
#else
    g_signal_handler_disconnect(G_OBJECT(gtk_widget_get_display(pEventWidget)), m_nSettingChangedSignalId);
#endif
    {
        SolarMutexGuard aGuard;

        if( m_pWindow )
        {
            g_object_set_data( G_OBJECT( m_pWindow ), "SalFrame", nullptr );

            if ( pSessionBus )
            {
                if ( m_nHudAwarenessId )
                    hud_awareness_unregister( pSessionBus, m_nHudAwarenessId );
                if ( m_nMenuExportId )
                    g_dbus_connection_unexport_menu_model( pSessionBus, m_nMenuExportId );
                if ( m_nActionGroupExportId )
                    g_dbus_connection_unexport_action_group( pSessionBus, m_nActionGroupExportId );
            }
            m_xFrameWeld.reset();
#if !GTK_CHECK_VERSION(4,0,0)
            gtk_widget_destroy( m_pWindow );
#else
            if (GTK_IS_WINDOW(m_pWindow))
                gtk_window_destroy(GTK_WINDOW(m_pWindow));
            else
                g_clear_pointer(&m_pWindow, gtk_widget_unparent);
#endif
        }
    }

#if !GTK_CHECK_VERSION(4,0,0)
    if( m_pForeignParent )
        g_object_unref( G_OBJECT( m_pForeignParent ) );
    if( m_pForeignTopLevel )
        g_object_unref( G_OBJECT( m_pForeignTopLevel) );
#endif

    m_pGraphics.reset();

    if (m_pSurface)
        cairo_surface_destroy(m_pSurface);
}

void GtkSalFrame::moveWindow( tools::Long nX, tools::Long nY )
{
    if( isChild( false ) )
    {
        GtkWidget* pParent = m_pParent ? gtk_widget_get_parent(m_pWindow) : nullptr;
        // tdf#130414 it's possible that we were reparented and are no longer inside
        // our original GtkFixed parent
        if (pParent && GTK_IS_FIXED(pParent))
        {
            gtk_fixed_move( GTK_FIXED(pParent),
                            m_pWindow,
                            nX - m_pParent->maGeometry.x(), nY - m_pParent->maGeometry.y() );
        }
        return;
    }
#if GTK_CHECK_VERSION(4,0,0)
    if (GTK_IS_POPOVER(m_pWindow))
    {
        GdkRectangle aRect;
        aRect.x = nX;
        aRect.y = nY;
        aRect.width = 1;
        aRect.height = 1;
        gtk_popover_set_pointing_to(GTK_POPOVER(m_pWindow), &aRect);
        return;
    }
#else
    gtk_window_move( GTK_WINDOW(m_pWindow), nX, nY );
#endif
}

void GtkSalFrame::widget_set_size_request(tools::Long nWidth, tools::Long nHeight)
{
    gtk_widget_set_size_request(GTK_WIDGET(m_pFixedContainer), nWidth, nHeight );
#if GTK_CHECK_VERSION(4,0,0)
    gtk_widget_set_size_request(GTK_WIDGET(m_pDrawingArea), nWidth, nHeight );
#endif
}

void GtkSalFrame::window_resize(tools::Long nWidth, tools::Long nHeight)
{
    m_nWidthRequest = nWidth;
    m_nHeightRequest = nHeight;
    if (!GTK_IS_WINDOW(m_pWindow))
    {
#if GTK_CHECK_VERSION(4,0,0)
        gtk_widget_set_size_request(GTK_WIDGET(m_pDrawingArea), nWidth, nHeight);
#endif
        return;
    }
    gtk_window_set_default_size(GTK_WINDOW(m_pWindow), nWidth, nHeight);
#if !GTK_CHECK_VERSION(4,0,0)
    gtk_window_resize(GTK_WINDOW(m_pWindow), nWidth, nHeight);
#endif
}

void GtkSalFrame::resizeWindow( tools::Long nWidth, tools::Long nHeight )
{
    if( isChild( false ) )
    {
        widget_set_size_request(nWidth, nHeight);
    }
    else if( ! isChild( true, false ) )
        window_resize(nWidth, nHeight);
}

#if !GTK_CHECK_VERSION(4,0,0)
// tdf#124694 GtkFixed takes the max size of all its children as its
// preferred size, causing it to not clip its child, but grow instead.

static void
ooo_fixed_get_preferred_height(GtkWidget*, gint *minimum, gint *natural)
{
    *minimum = 0;
    *natural = 0;
}

static void
ooo_fixed_get_preferred_width(GtkWidget*, gint *minimum, gint *natural)
{
    *minimum = 0;
    *natural = 0;
}

static void
ooo_fixed_class_init(gpointer klass_, gpointer)
{
    auto const klass = static_cast<GtkFixedClass *>(klass_);
    GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
    widget_class->get_accessible = ooo_fixed_get_accessible;
    widget_class->get_preferred_height = ooo_fixed_get_preferred_height;
    widget_class->get_preferred_width = ooo_fixed_get_preferred_width;
}

/*
 * Always use a sub-class of GtkFixed we can tag for a11y. This allows us to
 * utilize GAIL for the toplevel window and toolkit implementation incl.
 * key event listener support ..
 */

GType
ooo_fixed_get_type()
{
    static GType type = 0;

    if (!type) {
        static const GTypeInfo tinfo =
        {
            sizeof (GtkFixedClass),
            nullptr,      /* base init */
            nullptr,  /* base finalize */
            ooo_fixed_class_init, /* class init */
            nullptr, /* class finalize */
            nullptr,                      /* class data */
            sizeof (GtkFixed),         /* instance size */
            0,                         /* nb preallocs */
            nullptr,  /* instance init */
            nullptr                       /* value table */
        };

        type = g_type_register_static( GTK_TYPE_FIXED, "OOoFixed",
                                       &tinfo, GTypeFlags(0));
    }

    return type;
}

#endif

void GtkSalFrame::updateScreenNumber()
{
#if !GTK_CHECK_VERSION(4,0,0)
    int nScreen = 0;
    GdkScreen *pScreen = gtk_widget_get_screen( m_pWindow );
    if( pScreen )
        nScreen = getDisplay()->getSystem()->getScreenMonitorIdx( pScreen, maGeometry.x(), maGeometry.y() );
    maGeometry.setScreen(nScreen);
#endif
}

GtkWidget *GtkSalFrame::getMouseEventWidget() const
{
#if !GTK_CHECK_VERSION(4,0,0)
    return GTK_WIDGET(m_pEventBox);
#else
    return GTK_WIDGET(m_pFixedContainer);
#endif
}

static void damaged(void *handle,
                    sal_Int32 nExtentsX, sal_Int32 nExtentsY,
                    sal_Int32 nExtentsWidth, sal_Int32 nExtentsHeight)
{
    GtkSalFrame* pThis = static_cast<GtkSalFrame*>(handle);
    pThis->damaged(nExtentsX, nExtentsY, nExtentsWidth, nExtentsHeight);
}

#if !GTK_CHECK_VERSION(4,0,0)
static void notifyUnref(gpointer data, GObject *) { g_object_unref(data); }
#endif

void GtkSalFrame::InitCommon()
{
    m_pSurface = nullptr;
    m_nGrabLevel = 0;
    m_bSalObjectSetPosSize = false;
    m_nPortalSettingChangedSignalId = 0;
    m_nSessionClientSignalId = 0;
    m_pSettingsPortal = nullptr;
    m_pSessionManager = nullptr;
    m_pSessionClient = nullptr;

    m_aDamageHandler.handle = this;
    m_aDamageHandler.damaged = ::damaged;

#if !GTK_CHECK_VERSION(4,0,0)
    m_aSmoothScrollIdle.SetInvokeHandler(LINK(this, GtkSalFrame, AsyncScroll));
#endif

    m_pTopLevelGrid = GTK_GRID(gtk_grid_new());
    container_add(m_pWindow, GTK_WIDGET(m_pTopLevelGrid));

#if !GTK_CHECK_VERSION(4,0,0)
    m_pEventBox = GTK_EVENT_BOX(gtk_event_box_new());
    gtk_widget_add_events( GTK_WIDGET(m_pEventBox),
                           GDK_ALL_EVENTS_MASK );
    gtk_widget_set_vexpand(GTK_WIDGET(m_pEventBox), true);
    gtk_widget_set_hexpand(GTK_WIDGET(m_pEventBox), true);
    gtk_grid_attach(m_pTopLevelGrid, GTK_WIDGET(m_pEventBox), 0, 0, 1, 1);
#endif

    // add the fixed container child,
    // fixed is needed since we have to position plugin windows
#if !GTK_CHECK_VERSION(4,0,0)
    m_pFixedContainer = GTK_FIXED(g_object_new( ooo_fixed_get_type(), nullptr ));
    m_pDrawingArea = m_pFixedContainer;
#else
    m_pOverlay = GTK_OVERLAY(gtk_overlay_new());
    m_pFixedContainer = GTK_FIXED(g_object_new( ooo_fixed_get_type(), nullptr ));
    m_pDrawingArea = GTK_DRAWING_AREA(gtk_drawing_area_new());
#endif
    if (GTK_IS_WINDOW(m_pWindow))
    {
        Size aDefWindowSize = calcDefaultSize();
        gtk_window_set_default_size(GTK_WINDOW(m_pWindow), aDefWindowSize.Width(), aDefWindowSize.Height());
    }
    gtk_widget_set_can_focus(GTK_WIDGET(m_pFixedContainer), true);
    gtk_widget_set_size_request(GTK_WIDGET(m_pFixedContainer), 1, 1);
#if !GTK_CHECK_VERSION(4,0,0)
    gtk_container_add( GTK_CONTAINER(m_pEventBox), GTK_WIDGET(m_pFixedContainer) );
#else
    gtk_widget_set_vexpand(GTK_WIDGET(m_pOverlay), true);
    gtk_widget_set_hexpand(GTK_WIDGET(m_pOverlay), true);
    gtk_grid_attach(m_pTopLevelGrid, GTK_WIDGET(m_pOverlay), 0, 0, 1, 1);
    gtk_overlay_set_child(m_pOverlay, GTK_WIDGET(m_pDrawingArea));
    gtk_overlay_add_overlay(m_pOverlay, GTK_WIDGET(m_pFixedContainer));
#endif

    GtkWidget *pEventWidget = getMouseEventWidget();
#if !GTK_CHECK_VERSION(4,0,0)
    gtk_widget_set_app_paintable(GTK_WIDGET(m_pFixedContainer), true);
    gtk_widget_set_redraw_on_allocate(GTK_WIDGET(m_pFixedContainer), false);
#endif

#if GTK_CHECK_VERSION(4,0,0)
    m_nSettingChangedSignalId = g_signal_connect(G_OBJECT(gtk_widget_get_display(pEventWidget)), "setting-changed", G_CALLBACK(signalStyleUpdated), this);
#else
    // use pEventWidget instead of m_pWindow to avoid infinite event loop under Linux Mint Mate 18.3
    g_signal_connect(G_OBJECT(pEventWidget), "style-updated", G_CALLBACK(signalStyleUpdated), this);
#endif
    gtk_widget_set_has_tooltip(pEventWidget, true);
    // connect signals
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "query-tooltip", G_CALLBACK(signalTooltipQuery), this ));
#if !GTK_CHECK_VERSION(4,0,0)
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "button-press-event", G_CALLBACK(signalButton), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "button-release-event", G_CALLBACK(signalButton), this ));

    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "motion-notify-event", G_CALLBACK(signalMotion), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "leave-notify-event", G_CALLBACK(signalCrossing), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "enter-notify-event", G_CALLBACK(signalCrossing), this ));

    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "scroll-event", G_CALLBACK(signalScroll), this ));
#else
    GtkGesture *pClick = gtk_gesture_click_new();
    gtk_gesture_single_set_button(GTK_GESTURE_SINGLE(pClick), 0);
    // use GTK_PHASE_TARGET instead of default GTK_PHASE_BUBBLE because I don't
    // want click events in gtk widgets inside the overlay, e.g. the font size
    // combobox GtkEntry in the toolbar, to be propagated down to this widget
    gtk_event_controller_set_propagation_phase(GTK_EVENT_CONTROLLER(pClick), GTK_PHASE_TARGET);
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pClick));
    g_signal_connect(pClick, "pressed", G_CALLBACK(gesturePressed), this);
    g_signal_connect(pClick, "released", G_CALLBACK(gestureReleased), this);

    GtkEventController* pMotionController = gtk_event_controller_motion_new();
    g_signal_connect(pMotionController, "motion", G_CALLBACK(signalMotion), this);
    g_signal_connect(pMotionController, "enter", G_CALLBACK(signalEnter), this);
    g_signal_connect(pMotionController, "leave", G_CALLBACK(signalLeave), this);
    gtk_widget_add_controller(pEventWidget, pMotionController);

    GtkEventController* pScrollController = gtk_event_controller_scroll_new(GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES);
    g_signal_connect(pScrollController, "scroll", G_CALLBACK(signalScroll), this);
    gtk_widget_add_controller(pEventWidget, pScrollController);
#endif

#if GTK_CHECK_VERSION(4,0,0)
    GtkGesture* pZoomGesture = gtk_gesture_zoom_new();
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pZoomGesture));
#else
    GtkGesture* pZoomGesture = gtk_gesture_zoom_new(GTK_WIDGET(pEventWidget));
    g_object_weak_ref(G_OBJECT(pEventWidget), notifyUnref, pZoomGesture);
#endif
    gtk_event_controller_set_propagation_phase(GTK_EVENT_CONTROLLER(pZoomGesture),
                                               GTK_PHASE_TARGET);
    // Note that the default zoom gesture signal handler needs to run first to setup correct
    // scale delta. Otherwise the first "begin" event will always contain scale delta of infinity.
    g_signal_connect_after(pZoomGesture, "begin", G_CALLBACK(signalZoomBegin), this);
    g_signal_connect_after(pZoomGesture, "update", G_CALLBACK(signalZoomUpdate), this);
    g_signal_connect_after(pZoomGesture, "end", G_CALLBACK(signalZoomEnd), this);

#if GTK_CHECK_VERSION(4,0,0)
    GtkGesture* pRotateGesture = gtk_gesture_rotate_new();
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pRotateGesture));
#else
    GtkGesture* pRotateGesture = gtk_gesture_rotate_new(GTK_WIDGET(pEventWidget));
    g_object_weak_ref(G_OBJECT(pEventWidget), notifyUnref, pRotateGesture);
#endif
    gtk_event_controller_set_propagation_phase(GTK_EVENT_CONTROLLER(pRotateGesture),
                                               GTK_PHASE_TARGET);
    g_signal_connect(pRotateGesture, "begin", G_CALLBACK(signalRotateBegin), this);
    g_signal_connect(pRotateGesture, "update", G_CALLBACK(signalRotateUpdate), this);
    g_signal_connect(pRotateGesture, "end", G_CALLBACK(signalRotateEnd), this);

    //Drop Target Stuff
#if GTK_CHECK_VERSION(4,0,0)
    GtkDropTargetAsync* pDropTarget = gtk_drop_target_async_new(nullptr, GdkDragAction(GDK_ACTION_ALL));
    g_signal_connect(G_OBJECT(pDropTarget), "drag-enter", G_CALLBACK(signalDragMotion), this);
    g_signal_connect(G_OBJECT(pDropTarget), "drag-motion", G_CALLBACK(signalDragMotion), this);
    g_signal_connect(G_OBJECT(pDropTarget), "drag-leave", G_CALLBACK(signalDragLeave), this);
    g_signal_connect(G_OBJECT(pDropTarget), "drop", G_CALLBACK(signalDragDrop), this);
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pDropTarget));
#else
    gtk_drag_dest_set(GTK_WIDGET(pEventWidget), GtkDestDefaults(0), nullptr, 0, GdkDragAction(0));
    gtk_drag_dest_set_track_motion(GTK_WIDGET(pEventWidget), true);
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-motion", G_CALLBACK(signalDragMotion), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-drop", G_CALLBACK(signalDragDrop), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-data-received", G_CALLBACK(signalDragDropReceived), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-leave", G_CALLBACK(signalDragLeave), this ));
#endif

#if !GTK_CHECK_VERSION(4,0,0)
    //Drag Source Stuff
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-end", G_CALLBACK(signalDragEnd), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-failed", G_CALLBACK(signalDragFailed), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-data-delete", G_CALLBACK(signalDragDelete), this ));
    m_aMouseSignalIds.push_back(g_signal_connect( G_OBJECT(pEventWidget), "drag-data-get", G_CALLBACK(signalDragDataGet), this ));
#endif

#if !GTK_CHECK_VERSION(4,0,0)
    g_signal_connect( G_OBJECT(m_pFixedContainer), "draw", G_CALLBACK(signalDraw), this );
    g_signal_connect( G_OBJECT(m_pFixedContainer), "size-allocate", G_CALLBACK(sizeAllocated), this );
#else
    gtk_drawing_area_set_draw_func(m_pDrawingArea, signalDraw, this, nullptr);
    g_signal_connect(G_OBJECT(m_pDrawingArea), "resize", G_CALLBACK(sizeAllocated), this);
#endif

    g_signal_connect(G_OBJECT(m_pFixedContainer), "realize", G_CALLBACK(signalRealize), this);

#if !GTK_CHECK_VERSION(4,0,0)
    GtkGesture *pSwipe = gtk_gesture_swipe_new(pEventWidget);
    g_object_weak_ref(G_OBJECT(pEventWidget), notifyUnref, pSwipe);
#else
    GtkGesture *pSwipe = gtk_gesture_swipe_new();
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pSwipe));
#endif
    g_signal_connect(pSwipe, "swipe", G_CALLBACK(gestureSwipe), this);
    gtk_event_controller_set_propagation_phase(GTK_EVENT_CONTROLLER (pSwipe), GTK_PHASE_TARGET);

#if !GTK_CHECK_VERSION(4,0,0)
    GtkGesture *pLongPress = gtk_gesture_long_press_new(pEventWidget);
    g_object_weak_ref(G_OBJECT(pEventWidget), notifyUnref, pLongPress);
#else
    GtkGesture *pLongPress = gtk_gesture_long_press_new();
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(pLongPress));
#endif
    g_signal_connect(pLongPress, "pressed", G_CALLBACK(gestureLongPress), this);
    gtk_event_controller_set_propagation_phase(GTK_EVENT_CONTROLLER (pLongPress), GTK_PHASE_TARGET);

#if !GTK_CHECK_VERSION(4,0,0)
    g_signal_connect_after( G_OBJECT(m_pWindow), "focus-in-event", G_CALLBACK(signalFocus), this );
    g_signal_connect_after( G_OBJECT(m_pWindow), "focus-out-event", G_CALLBACK(signalFocus), this );
    if (GTK_IS_WINDOW(m_pWindow)) // i.e. not if it's a GtkEventBox which doesn't have the signal
        m_nSetFocusSignalId = g_signal_connect( G_OBJECT(m_pWindow), "set-focus", G_CALLBACK(signalSetFocus), this );
#else
    GtkEventController* pFocusController = gtk_event_controller_focus_new();
    g_signal_connect(pFocusController, "enter", G_CALLBACK(signalFocusEnter), this);
    g_signal_connect(pFocusController, "leave", G_CALLBACK(signalFocusLeave), this);
    gtk_widget_set_focusable(pEventWidget, true);
    gtk_widget_add_controller(pEventWidget, pFocusController);
    if (GTK_IS_WINDOW(m_pWindow)) // i.e. not if it's a GtkEventBox which doesn't have the property (presumably?)
        m_nSetFocusSignalId = g_signal_connect( G_OBJECT(m_pWindow), "notify::focus-widget", G_CALLBACK(signalSetFocus), this );
#endif
#if !GTK_CHECK_VERSION(4,0,0)
    g_signal_connect( G_OBJECT(m_pWindow), "map-event", G_CALLBACK(signalMap), this );
    g_signal_connect( G_OBJECT(m_pWindow), "unmap-event", G_CALLBACK(signalUnmap), this );
    g_signal_connect( G_OBJECT(m_pWindow), "delete-event", G_CALLBACK(signalDelete), this );
#else
    g_signal_connect( G_OBJECT(m_pWindow), "map", G_CALLBACK(signalMap), this );
    g_signal_connect( G_OBJECT(m_pWindow), "unmap", G_CALLBACK(signalUnmap), this );
    if (GTK_IS_WINDOW(m_pWindow))
        g_signal_connect( G_OBJECT(m_pWindow), "close-request", G_CALLBACK(signalDelete), this );
#endif
#if !GTK_CHECK_VERSION(4,0,0)
    g_signal_connect( G_OBJECT(m_pWindow), "configure-event", G_CALLBACK(signalConfigure), this );
#endif

#if !GTK_CHECK_VERSION(4,0,0)
    g_signal_connect( G_OBJECT(m_pWindow), "key-press-event", G_CALLBACK(signalKey), this );
    g_signal_connect( G_OBJECT(m_pWindow), "key-release-event", G_CALLBACK(signalKey), this );
#else
    m_pKeyController = GTK_EVENT_CONTROLLER_KEY(gtk_event_controller_key_new());
    g_signal_connect(m_pKeyController, "key-pressed", G_CALLBACK(signalKeyPressed), this);
    g_signal_connect(m_pKeyController, "key-released", G_CALLBACK(signalKeyReleased), this);
    gtk_widget_add_controller(pEventWidget, GTK_EVENT_CONTROLLER(m_pKeyController));

#endif
    g_signal_connect( G_OBJECT(m_pWindow), "destroy", G_CALLBACK(signalDestroy), this );

    // init members
    m_nKeyModifiers     = ModKeyFlags::NONE;
    m_bFullscreen       = false;
#if GTK_CHECK_VERSION(4,0,0)
    m_nState            = static_cast<GdkToplevelState>(0);
#else
    m_nState            = GDK_WINDOW_STATE_WITHDRAWN;
#endif
    m_pIMHandler        = nullptr;
    m_pRegion           = nullptr;
    m_pDropTarget       = nullptr;
    m_pDragSource       = nullptr;
    m_bGeometryIsProvisional = false;
    m_bIconSetWhileUnmapped = false;
    m_bTooltipBlocked   = false;
    m_ePointerStyle     = static_cast<PointerStyle>(0xffff);
    m_pSalMenu          = nullptr;
    m_nWatcherId        = 0;
    m_nMenuExportId     = 0;
    m_nActionGroupExportId = 0;
    m_nHudAwarenessId   = 0;

#if !GTK_CHECK_VERSION(4,0,0)
    gtk_widget_add_events( m_pWindow,
                           GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
                           GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
                           GDK_SCROLL_MASK | GDK_TOUCHPAD_GESTURE_MASK
                           );
#endif

    // show the widgets
#if !GTK_CHECK_VERSION(4,0,0)
    gtk_widget_show_all(GTK_WIDGET(m_pTopLevelGrid));
#else
    gtk_widget_set_visible(GTK_WIDGET(m_pTopLevelGrid), true);
#endif

    // realize the window, we need an XWindow id
    gtk_widget_realize( m_pWindow );

    if (GTK_IS_WINDOW(m_pWindow))
    {
#if !GTK_CHECK_VERSION(4,0,0)
        g_signal_connect(G_OBJECT(m_pWindow), "window-state-event", G_CALLBACK(signalWindowState), this);
#else
        GdkSurface* gdkWindow = widget_get_surface(m_pWindow);
        g_signal_connect(G_OBJECT(gdkWindow), "notify::state", G_CALLBACK(signalWindowState), this);
#endif
    }

    //system data
    m_aSystemData.SetWindowHandle(GetNativeWindowHandle(m_pWindow));
    m_aSystemData.pSalFrame     = this;
    m_aSystemData.pWidget       = m_pWindow;
    m_aSystemData.nScreen       = m_nXScreen.getXScreen();
    m_aSystemData.toolkit       = SystemEnvData::Toolkit::Gtk;

#if defined(GDK_WINDOWING_X11)
    GdkDisplay *pDisplay = getGdkDisplay();
    if (DLSYM_GDK_IS_X11_DISPLAY(pDisplay))
    {
        m_aSystemData.pDisplay = gdk_x11_display_get_xdisplay(pDisplay);
        m_aSystemData.platform = SystemEnvData::Platform::Xcb;
#if !GTK_CHECK_VERSION(4,0,0)
        GdkScreen* pScreen = gtk_widget_get_screen(m_pWindow);
        GdkVisual* pVisual = gdk_screen_get_system_visual(pScreen);
        m_aSystemData.pVisual = gdk_x11_visual_get_xvisual(pVisual);
#endif
    }
#endif
#if defined(GDK_WINDOWING_WAYLAND)
    if (DLSYM_GDK_IS_WAYLAND_DISPLAY(pDisplay))
    {
        m_aSystemData.pDisplay = gdk_wayland_display_get_wl_display(pDisplay);
        m_aSystemData.platform = SystemEnvData::Platform::Wayland;
    }
#endif

    m_bGraphics = false;
    m_pGraphics = nullptr;

    m_nFloatFlags = FloatWinPopupFlags::NONE;
    m_bFloatPositioned = false;

    m_nWidthRequest = 0;
    m_nHeightRequest = 0;

    // fake an initial geometry, gets updated via configure event or SetPosSize
    if (m_bDefaultPos || m_bDefaultSize)
    {
        Size aDefSize = calcDefaultSize();
        maGeometry.setPosSize({ -1, -1 }, aDefSize);
        maGeometry.setDecorations(0, 0, 0, 0);
    }
    updateScreenNumber();

    SetIcon(SV_ICON_ID_OFFICE);
}

GtkSalFrame *GtkSalFrame::getFromWindow( GtkWidget *pWindow )
{
    return static_cast<GtkSalFrame *>(g_object_get_data( G_OBJECT( pWindow ), "SalFrame" ));
}

void GtkSalFrame::DisallowCycleFocusOut()
{
    if (!m_nSetFocusSignalId)
        return;
    // don't enable/disable can-focus as control enters and leaves
    // embedded native gtk widgets
    g_signal_handler_disconnect(G_OBJECT(m_pWindow), m_nSetFocusSignalId);
    m_nSetFocusSignalId = 0;

#if !GTK_CHECK_VERSION(4, 0, 0)
    // gtk3: set container without can-focus and focus will tab between
    // the native embedded widgets using the default gtk handling for
    // that
    // gtk4: no need because the native widgets are the only
    // thing in the overlay and the drawing widget is underneath so
    // the natural focus cycle is sufficient
    gtk_widget_set_can_focus(GTK_WIDGET(m_pFixedContainer), false);
#endif
}

bool GtkSalFrame::IsCycleFocusOutDisallowed() const
{
    return m_nSetFocusSignalId == 0;
}

void GtkSalFrame::AllowCycleFocusOut()
{
    if (m_nSetFocusSignalId)
        return;
#if !GTK_CHECK_VERSION(4,0,0)
    // enable/disable can-focus as control enters and leaves
    // embedded native gtk widgets
    m_nSetFocusSignalId = g_signal_connect(G_OBJECT(m_pWindow), "set-focus", G_CALLBACK(signalSetFocus), this);
#else
    m_nSetFocusSignalId = g_signal_connect(G_OBJECT(m_pWindow), "notify::focus-widget", G_CALLBACK(signalSetFocus), this);
#endif

#if !GTK_CHECK_VERSION(4, 0, 0)
    // set container without can-focus and focus will tab between
    // the native embedded widgets using the default gtk handling for
    // that
    // gtk4: no need because the native widgets are the only
    // thing in the overlay and the drawing widget is underneath so
    // the natural focus cycle is sufficient
    gtk_widget_set_can_focus(GTK_WIDGET(m_pFixedContainer), true);
#endif
}

namespace
{
    enum ColorScheme
    {
        DEFAULT,
        PREFER_DARK,
        PREFER_LIGHT
    };

    void ReadColorScheme(GDBusProxy* proxy, GVariant** out)
    {
        g_autoptr (GVariant) ret =
            g_dbus_proxy_call_sync(proxy, "Read",
                                   g_variant_new ("(ss)", "org.freedesktop.appearance", "color-scheme"),
                                   G_DBUS_CALL_FLAGS_NONE, G_MAXINT, nullptr, nullptr);
        if (!ret)
            return;

        g_autoptr (GVariant) child = nullptr;
        g_variant_get(ret, "(v)", &child);
        g_variant_get(child, "v", out);

        return;
    }
}

void GtkSalFrame::SetColorScheme(GVariant* variant)
{
    if (!m_pWindow)
        return;

    guint32 color_scheme;

    switch (MiscSettings::GetAppColorMode())
    {
        default:
        case AppearanceMode::AUTO:
        {
            if (variant)
            {
                color_scheme = g_variant_get_uint32(variant);
                if (color_scheme > PREFER_LIGHT)
                    color_scheme = DEFAULT;
            }
            else
                color_scheme = DEFAULT;
            break;
        }
        case AppearanceMode::LIGHT:
            color_scheme = PREFER_LIGHT;
            break;
        case AppearanceMode::DARK:
            color_scheme = PREFER_DARK;
            break;
    }

    bool bDarkIconTheme(color_scheme == PREFER_DARK);
    GtkSettings* pSettings = gtk_widget_get_settings(m_pWindow);
    g_object_set(pSettings, "gtk-application-prefer-dark-theme", bDarkIconTheme, nullptr);
}

bool GtkSalFrame::GetUseDarkMode() const
{
    if (!m_pWindow)
        return false;
    GtkSettings* pSettings = gtk_widget_get_settings(m_pWindow);
    gboolean bDarkIconTheme = false;
    g_object_get(pSettings, "gtk-application-prefer-dark-theme", &bDarkIconTheme, nullptr);
    return bDarkIconTheme;
}

bool GtkSalFrame::GetUseReducedAnimation() const
{
    if (!m_pWindow)
        return false;
    GtkSettings* pSettings = gtk_widget_get_settings(m_pWindow);
    gboolean bAnimations;
    g_object_get(pSettings, "gtk-enable-animations", &bAnimations, nullptr);
    return !bAnimations;
}

static void settings_portal_changed_cb(GDBusProxy*, const char*, const char* signal_name,
                                       GVariant* parameters, gpointer frame)
{
    if (g_strcmp0(signal_name, "SettingChanged"))
        return;

    g_autoptr (GVariant) value = nullptr;
    const char *name_space;
    const char *name;
    g_variant_get(parameters, "(&s&sv)", &name_space, &name, &value);

    if (g_strcmp0(name_space, "org.freedesktop.appearance") ||
        g_strcmp0(name, "color-scheme"))
      return;

    GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);
    pThis->SetColorScheme(value);
}

void GtkSalFrame::ListenPortalSettings()
{
    EnsureSessionBus();

    if (!pSessionBus)
        return;

    m_pSettingsPortal = g_dbus_proxy_new_sync(pSessionBus,
                                              G_DBUS_PROXY_FLAGS_NONE,
                                              nullptr,
                                              "org.freedesktop.portal.Desktop",
                                              "/org/freedesktop/portal/desktop",
                                              "org.freedesktop.portal.Settings",
                                              nullptr,
                                              nullptr);

    UpdateDarkMode();

    if (!m_pSettingsPortal)
        return;

    m_nPortalSettingChangedSignalId = g_signal_connect(m_pSettingsPortal, "g-signal", G_CALLBACK(settings_portal_changed_cb), this);
}

static void session_client_response(GDBusProxy* client_proxy)
{
    g_dbus_proxy_call(client_proxy,
                      "EndSessionResponse",
                      g_variant_new ("(bs)", true, ""),
                      G_DBUS_CALL_FLAGS_NONE,
                      G_MAXINT,
                      nullptr, nullptr, nullptr);
}

// unset documents "modify" flag so they won't veto closing
static void clear_modify_and_terminate()
{
    const css::uno::Reference<css::uno::XComponentContext>& xContext = ::comphelper::getProcessComponentContext();
    uno::Reference<frame::XDesktop> xDesktop(frame::Desktop::create(xContext));
    uno::Reference<css::container::XEnumeration> xComponents = xDesktop->getComponents()->createEnumeration();
    while (xComponents->hasMoreElements())
    {
        css::uno::Reference<css::util::XModifiable> xModifiable(xComponents->nextElement(), css::uno::UNO_QUERY);
        if (xModifiable)
            xModifiable->setModified(false);
    }
    xDesktop->terminate();
}

static void session_client_signal(GDBusProxy* client_proxy, const char*, const char* signal_name,
                                  GVariant* /*parameters*/, gpointer frame)
{
    GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);

    if (g_str_equal (signal_name, "QueryEndSession"))
    {
        const css::uno::Reference<css::uno::XComponentContext>& xContext = ::comphelper::getProcessComponentContext();
        uno::Reference<frame::XDesktop2> xDesktop(frame::Desktop::create(xContext));

        bool bModified = false;

        // find the XModifiable for this GtkSalFrame
        if (UnoWrapperBase* pWrapper = UnoWrapperBase::GetUnoWrapper(false))
        {
            VclPtr<vcl::Window> xThisWindow = pThis->GetWindow();
            css::uno::Reference<css::container::XIndexAccess> xList = xDesktop->getFrames();
            sal_Int32 nFrameCount = xList->getCount();
            for (sal_Int32 i = 0; i < nFrameCount; ++i)
            {
                css::uno::Reference<css::frame::XFrame> xFrame;
                xList->getByIndex(i) >>= xFrame;
                if (!xFrame)
                    continue;
                VclPtr<vcl::Window> xWin = pWrapper->GetWindow(xFrame->getContainerWindow());
                if (!xWin)
                   continue;
                if (xWin->GetFrameWindow() != xThisWindow)
                    continue;
                css::uno::Reference<css::frame::XController> xController = xFrame->getController();
                if (!xController)
                    break;
                css::uno::Reference<css::util::XModifiable> xModifiable(xController->getModel(), css::uno::UNO_QUERY);
                if (!xModifiable)
                    break;
                bModified = xModifiable->isModified();
                break;
            }
        }

        pThis->SessionManagerInhibit(bModified, APPLICATION_INHIBIT_LOGOUT, VclResId(STR_UNSAVED_DOCUMENTS),
                                     gtk_window_get_icon_name(GTK_WINDOW(pThis->getWindow())));

        session_client_response(client_proxy);
    }
    else if (g_str_equal (signal_name, "CancelEndSession"))
    {
        // restore back to uninhibited (to set again if queried), so frames
        // that go away before the next logout don't affect that logout
        pThis->SessionManagerInhibit(false, APPLICATION_INHIBIT_LOGOUT, VclResId(STR_UNSAVED_DOCUMENTS),
                                     gtk_window_get_icon_name(GTK_WINDOW(pThis->getWindow())));
    }
    else if (g_str_equal (signal_name, "EndSession"))
    {
        session_client_response(client_proxy);
        clear_modify_and_terminate();
    }
    else if (g_str_equal (signal_name, "Stop"))
    {
        clear_modify_and_terminate();
    }
}

void GtkSalFrame::ListenSessionManager()
{
    EnsureSessionBus();

    if (!pSessionBus)
        return;

    m_pSessionManager = g_dbus_proxy_new_sync(pSessionBus,
                                              G_DBUS_PROXY_FLAGS_NONE,
                                              nullptr,
                                              "org.gnome.SessionManager",
                                              "/org/gnome/SessionManager",
                                              "org.gnome.SessionManager",
                                              nullptr,
                                              nullptr);

    if (!m_pSessionManager)
        return;

    GVariant* res = g_dbus_proxy_call_sync(m_pSessionManager,
                                 "RegisterClient",
                                 g_variant_new ("(ss)", "org.libreoffice", ""),
                                 G_DBUS_CALL_FLAGS_NONE,
                                 G_MAXINT,
                                 nullptr,
                                 nullptr);

    if (!res)
        return;

    gchar* client_path;
    g_variant_get(res, "(o)", &client_path);
    g_variant_unref(res);

    m_pSessionClient = g_dbus_proxy_new_sync(pSessionBus,
                                             G_DBUS_PROXY_FLAGS_NONE,
                                             nullptr,
                                             "org.gnome.SessionManager",
                                             client_path,
                                             "org.gnome.SessionManager.ClientPrivate",
                                             nullptr,
                                             nullptr);

    g_free(client_path);

    if (!m_pSessionClient)
        return;

    m_nSessionClientSignalId = g_signal_connect(m_pSessionClient, "g-signal", G_CALLBACK(session_client_signal), this);
}

void GtkSalFrame::UpdateDarkMode()
{
    g_autoptr (GVariant) value = nullptr;
    if (m_pSettingsPortal)
        ReadColorScheme(m_pSettingsPortal, &value);
    SetColorScheme(value);
}

#if GTK_CHECK_VERSION(4,0,0)
static void PopoverClosed(GtkPopover*, GtkSalFrame* pThis)
{
    SolarMutexGuard aGuard;
    pThis->closePopup();
}
#endif

void GtkSalFrame::Init( SalFrame* pParent, SalFrameStyleFlags nStyle )
{
    if( nStyle & SalFrameStyleFlags::DEFAULT ) // ensure default style
    {
        nStyle |= SalFrameStyleFlags::MOVEABLE | SalFrameStyleFlags::SIZEABLE | SalFrameStyleFlags::CLOSEABLE;
        nStyle &= ~SalFrameStyleFlags::FLOAT;
    }

    m_pParent = static_cast<GtkSalFrame*>(pParent);
#if !GTK_CHECK_VERSION(4,0,0)
    m_pForeignParent = nullptr;
    m_aForeignParentWindow = None;
    m_pForeignTopLevel = nullptr;
    m_aForeignTopLevelWindow = None;
#endif
    m_nStyle = nStyle;

    bool bPopup = ((nStyle & SalFrameStyleFlags::FLOAT) &&
                   !(nStyle & SalFrameStyleFlags::OWNERDRAWDECORATION));

    if( nStyle & SalFrameStyleFlags::SYSTEMCHILD )
    {
#if !GTK_CHECK_VERSION(4,0,0)
        m_pWindow = gtk_event_box_new();
#else
        m_pWindow = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
#endif
        if( m_pParent )
        {
            // insert into container
            gtk_fixed_put( m_pParent->getFixedContainer(),
                           m_pWindow, 0, 0 );
        }
    }
    else
    {
#if !GTK_CHECK_VERSION(4,0,0)
        m_pWindow = gtk_window_new(bPopup ? GTK_WINDOW_POPUP : GTK_WINDOW_TOPLEVEL);
#else
        if (!bPopup)
            m_pWindow = gtk_window_new();
        else
        {
            m_pWindow = gtk_popover_new();
            gtk_popover_set_has_arrow(GTK_POPOVER(m_pWindow), false);
            g_signal_connect(m_pWindow, "closed", G_CALLBACK(PopoverClosed), this);
        }
#endif

#if !GTK_CHECK_VERSION(4,0,0)
        // hook up F1 to show help for embedded native gtk widgets
        GtkAccelGroup *pGroup = gtk_accel_group_new();
        GClosure* closure = g_cclosure_new(G_CALLBACK(GtkSalFrame::NativeWidgetHelpPressed), GTK_WINDOW(m_pWindow), nullptr);
        gtk_accel_group_connect(pGroup, GDK_KEY_F1, static_cast<GdkModifierType>(0), GTK_ACCEL_LOCKED, closure);
        gtk_window_add_accel_group(GTK_WINDOW(m_pWindow), pGroup);
#endif
    }

    g_object_set_data( G_OBJECT( m_pWindow ), "SalFrame", this );
    g_object_set_data( G_OBJECT( m_pWindow ), "libo-version", const_cast<char *>(LIBO_VERSION_DOTTED));

    // force wm class hint
    if (!isChild())
    {
        if (m_pParent)
            m_sWMClass = m_pParent->m_sWMClass;
        updateWMClass();
    }

    if (GTK_IS_WINDOW(m_pWindow))
    {
        if (m_pParent)
        {
            GtkWidget* pTopLevel = widget_get_toplevel(m_pParent->m_pWindow);
#if !GTK_CHECK_VERSION(4,0,0)
            if (!isChild())
                gtk_window_set_screen(GTK_WINDOW(m_pWindow), gtk_widget_get_screen(pTopLevel));
#endif

            if (!(m_pParent->m_nStyle & SalFrameStyleFlags::PLUG))
                gtk_window_set_transient_for(GTK_WINDOW(m_pWindow), GTK_WINDOW(pTopLevel));
            m_pParent->m_aChildren.push_back( this );
            gtk_window_group_add_window(gtk_window_get_group(GTK_WINDOW(pTopLevel)), GTK_WINDOW(m_pWindow));
        }
        else
        {
            gtk_window_group_add_window(gtk_window_group_new(), GTK_WINDOW(m_pWindow));
            g_object_unref(gtk_window_get_group(GTK_WINDOW(m_pWindow)));
        }
    }
    else if (GTK_IS_POPOVER(m_pWindow))
    {
        assert(m_pParent);
        gtk_widget_set_parent(m_pWindow, m_pParent->getMouseEventWidget());
    }

    // set window type
    bool bDecoHandling =
        ! isChild() &&
        ( ! (nStyle & SalFrameStyleFlags::FLOAT) ||
          (nStyle & SalFrameStyleFlags::OWNERDRAWDECORATION) );

    if( bDecoHandling )
    {
#if !GTK_CHECK_VERSION(4,0,0)
        GdkWindowTypeHint eType = GDK_WINDOW_TYPE_HINT_NORMAL;
        if( (nStyle & SalFrameStyleFlags::DIALOG) && m_pParent != nullptr )
            eType = GDK_WINDOW_TYPE_HINT_DIALOG;
#endif
        if( nStyle & SalFrameStyleFlags::INTRO )
        {
#if !GTK_CHECK_VERSION(4,0,0)
            gtk_window_set_role( GTK_WINDOW(m_pWindow), "splashscreen" );
            eType = GDK_WINDOW_TYPE_HINT_SPLASHSCREEN;
#endif
        }
        else if( nStyle & SalFrameStyleFlags::TOOLWINDOW )
        {
#if !GTK_CHECK_VERSION(4,0,0)
            eType = GDK_WINDOW_TYPE_HINT_DIALOG;
            gtk_window_set_skip_taskbar_hint( GTK_WINDOW(m_pWindow), true );
#endif
        }
        else if( nStyle & SalFrameStyleFlags::OWNERDRAWDECORATION )
        {
#if !GTK_CHECK_VERSION(4,0,0)
            eType = GDK_WINDOW_TYPE_HINT_TOOLBAR;
            gtk_window_set_focus_on_map(GTK_WINDOW(m_pWindow), false);
#endif
            gtk_window_set_decorated(GTK_WINDOW(m_pWindow), false);
        }
#if !GTK_CHECK_VERSION(4,0,0)
        gtk_window_set_type_hint( GTK_WINDOW(m_pWindow), eType );
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