/* Functions for the pure Gtk+-3.

Copyright (C) 1989, 1992-1994, 2005-2006, 2008-2018 Free Software
Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */

/* This should be the first include, as it may set up #defines affecting
   interpretation of even the system includes. */
#include <config.h>

#include <c-strcase.h>
#include <math.h>

#include "lisp.h"
#include "blockinput.h"
#include "buffer.h"
#include "character.h"
#include "font.h"
#include "fontset.h"
#ifndef HAVE_GTK4
#include "gtkutil.h"
#else
#include "pgtksubr.h"
#endif
#include "keyboard.h"
#include "termhooks.h"
#include "window.h"
#include "xsettings.h"

#ifdef HAVE_GTK3
#include "pgtkevent.h"
#endif
#include "pgtkterm.h"

#ifdef HAVE_PGTK

// static EmacsTooltip *pgtk_tooltip = nil;

/* Static variables to handle applescript execution.  */
static Lisp_Object as_script, *as_result;
static int as_status;

static ptrdiff_t image_cache_refcount;

static int x_decode_color (struct frame *f, Lisp_Object color_name,
                           int mono_color);
static struct pgtk_display_info *pgtk_display_info_for_name (Lisp_Object);
static void pgtk_set_name_as_filename (struct frame *);

static const char *pgtk_app_name = "Emacs";

/* ==========================================================================

    Internal utility functions

   ========================================================================== */

struct pgtk_display_info *
check_pgtk_display_info (Lisp_Object object)
{
  struct pgtk_display_info *dpyinfo = NULL;

  if (NILP (object))
    {
      struct frame *sf = XFRAME (selected_frame);

      if (FRAME_PGTK_P (sf) && FRAME_LIVE_P (sf))
        dpyinfo = FRAME_DISPLAY_INFO (sf);
      else if (x_display_list != 0)
        dpyinfo = x_display_list;
      else
        error ("Frames are not in use or not initialized");
    }
  else if (TERMINALP (object))
    {
      struct terminal *t = decode_live_terminal (object);

      if (t->type != output_pgtk)
        error ("Terminal %d is not a display", t->id);

      dpyinfo = t->display_info.pgtk;
    }
  else if (STRINGP (object))
    dpyinfo = pgtk_display_info_for_name (object);
  else
    {
      struct frame *f = decode_window_system_frame (object);
      dpyinfo = FRAME_DISPLAY_INFO (f);
    }

  return dpyinfo;
}

/* Return the X display structure for the display named NAME.
   Open a new connection if necessary.  */
static struct pgtk_display_info *
pgtk_display_info_for_name (Lisp_Object name)
{
  struct pgtk_display_info *dpyinfo;

  CHECK_STRING (name);

  for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next)
    if (!NILP (Fstring_equal (XCAR (dpyinfo->name_list_element), name)))
      return dpyinfo;

  /* Use this general default value to start with.  */
  Vx_resource_name = Vinvocation_name;

  validate_x_resource_name ();

  dpyinfo = pgtk_term_init (name, SSDATA (Vx_resource_name));

  if (dpyinfo == 0)
    error ("Cannot connect to display server %s", SDATA (name));

  XSETFASTINT (Vwindow_system_version, 11);

  return dpyinfo;
}

/* ==========================================================================

    Frame parameter setters

   ========================================================================== */

static void
x_set_foreground_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  Emacs_Color col;

  /* Must block_input, because pgtk_lisp_to_color does block/unblock_input
     which means that col may be deallocated in its unblock_input if there
     is user input, unless we also block_input.  */
  block_input ();
  if (pgtk_lisp_to_color_with_frame (arg, &col, f))
    {
      store_frame_param (f, Qforeground_color, oldval);
      unblock_input ();
      error ("Unknown color");
    }

  FRAME_X_OUTPUT (f)->foreground_color = col.pixel;

  FRAME_FOREGROUND_PIXEL (f) = col.pixel;

  if (FRAME_GTK_WIDGET (f))
    {
      update_face_from_frame_parameter (f, Qforeground_color, arg);
      /*recompute_basic_faces (f); */
      if (FRAME_VISIBLE_P (f))
        SET_FRAME_GARBAGED (f);
    }
  unblock_input ();
}

static void
x_set_background_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  Emacs_Color col;

  block_input ();
  if (pgtk_lisp_to_color_with_frame (arg, &col, f))
    {
      store_frame_param (f, Qbackground_color, oldval);
      unblock_input ();
      error ("Unknown color");
    }

  /* clear the frame */
  if (FRAME_VISIBLE_P (f))
    pgtk_clear_frame (f);

  PGTK_TRACE ("x_set_background_color: col.pixel=%08lx.", col.pixel);
  FRAME_X_OUTPUT (f)->background_color = col.pixel;
  FRAME_BACKGROUND_PIXEL (f)
    = ARGB_TO_ULONG ((unsigned int) (0xff), (unsigned int) (col.red >> 8),
                     (unsigned int) (col.green >> 8),
                     (unsigned int) (col.blue >> 8));
#ifndef HAVE_GTK4
  xg_set_background_color (f, col.pixel);
#else
  egtk_set_background_color (f, col.pixel);
#endif

  update_face_from_frame_parameter (f, Qbackground_color, arg);

  PGTK_TRACE ("visible_p=%d.", FRAME_VISIBLE_P (f));
  if (FRAME_VISIBLE_P (f))
    SET_FRAME_GARBAGED (f);

  unblock_input ();
}

static void
x_set_border_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  int pix;
#ifdef HAVE_GTK3
  CHECK_STRING (arg);
  pix = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  FRAME_X_OUTPUT (f)->border_pixel = pix;
  pgtk_frame_rehighlight (FRAME_DISPLAY_INFO (f));
#endif
}

static void
x_set_cursor_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  unsigned long fore_pixel, pixel;
  struct pgtk_output *x = f->output_data.pgtk;
  Emacs_Color col;

  if (!NILP (Vx_cursor_fore_pixel))
    {
      if (pgtk_lisp_to_color_with_frame (Vx_cursor_fore_pixel, &col, f))
        signal_error ("Undefined color", Vx_cursor_fore_pixel);
      fore_pixel = col.pixel;
    }
  else
    fore_pixel = FRAME_BACKGROUND_PIXEL (f);

  if (pgtk_lisp_to_color_with_frame (arg, &col, f))
    signal_error ("Undefined color", arg);
  pixel = col.pixel;

  /* Make sure that the cursor color differs from the background color.  */
  if (pixel == FRAME_BACKGROUND_PIXEL (f))
    {
      pixel = x->mouse_color;
      if (pixel == fore_pixel)
        {
          fore_pixel = FRAME_BACKGROUND_PIXEL (f);
        }
    }

  x->cursor_foreground_color = fore_pixel;
  x->cursor_color = pixel;

  if (FRAME_X_WINDOW (f) != 0)
    {
      x->cursor_xgcv.background = x->cursor_color;
      x->cursor_xgcv.foreground = fore_pixel;

      if (FRAME_VISIBLE_P (f))
        {
          gui_update_cursor (f, false);
          gui_update_cursor (f, true);
        }
    }

  update_face_from_frame_parameter (f, Qcursor_color, arg);
}

static void
x_set_icon_name (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  GtkWidget *widget = FRAME_GTK_OUTER_WIDGET (f);
  PGTK_TRACE ("x_set_icon_name");
  if (FRAME_PARENT_FRAME (f))
    return;
  /* see if it's changed */
  if (STRINGP (arg))
    {
      if (STRINGP (oldval) && EQ (Fstring_equal (oldval, arg), Qt))
        return;
    }
  else if (!STRINGP (oldval) && EQ (oldval, Qnil) == EQ (arg, Qnil))
    return;

  fset_icon_name (f, arg);

  if (NILP (arg))
    {
      if (!NILP (f->title))
        arg = f->title;
      else
        /* Explicit name and no icon-name -> explicit_name.  */
        if (f->explicit_name)
        arg = f->name;
      else
        {
          /* No explicit name and no icon-name ->
             name has to be rebuild from icon_title_format.  */
          windows_or_buffers_changed = 67;
          return;
        }
    }

  gtk_window_set_icon_name (GTK_WINDOW (widget), SSDATA (arg));
}

static void
pgtk_set_name_internal (struct frame *f, Lisp_Object name)
{
  Lisp_Object encoded_name, encoded_icon_name;
  GtkWidget *widget = FRAME_GTK_OUTER_WIDGET (f);
#ifdef HAVE_GTK4
  if (!GTK_IS_WINDOW (widget))
    {
      gtk_widget_set_name (widget, SSDATA (ENCODE_UTF_8 (name)));
      return;
    }
#endif
  encoded_name = ENCODE_UTF_8 (name);
  gtk_window_set_title (GTK_WINDOW (widget), SSDATA (encoded_name));

  if (!STRINGP (f->icon_name))
    encoded_icon_name = encoded_name;
  else
    encoded_icon_name = ENCODE_UTF_8 (f->icon_name);
  gtk_window_set_icon_name (GTK_WINDOW (widget), SSDATA (encoded_icon_name));
}

static void
pgtk_set_name (struct frame *f, Lisp_Object name, int explicit)
{
  PGTK_TRACE ("pgtk_set_name");

  /* Make sure that requests from lisp code override requests from
     Emacs redisplay code.  */
  if (explicit)
    {
      /* If we're switching from explicit to implicit, we had better
         update the mode lines and thereby update the title.  */
      if (f->explicit_name && NILP (name))
        update_mode_lines = 12;

      f->explicit_name = !NILP (name);
    }
  else if (f->explicit_name)
    return;

  if (NILP (name))
    name = build_string (pgtk_app_name);
  else
    CHECK_STRING (name);

  /* Don't change the name if it's already NAME.  */
  if (!NILP (Fstring_equal (name, f->name)))
    return;

  fset_name (f, name);

  /* Title overrides explicit name.  */
  if (!NILP (f->title))
    name = f->title;

  pgtk_set_name_internal (f, name);
}

/* This function should be called when the user's lisp code has
   specified a name for the frame; the name will override any set by the
   redisplay code.  */
static void
x_explicitly_set_name (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  PGTK_TRACE ("x_explicitly_set_name");
  pgtk_set_name (f, arg, 1);
}

/* This function should be called by Emacs redisplay code to set the
   name; names set this way will never override names set by the user's
   lisp code.  */
void
pgtk_implicitly_set_name (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  PGTK_TRACE ("x_implicitly_set_name");

  Lisp_Object frame_title
    = buffer_local_value (Qframe_title_format,
                          XWINDOW (f->selected_window)->contents);
  Lisp_Object icon_title
    = buffer_local_value (Qicon_title_format,
                          XWINDOW (f->selected_window)->contents);

  if (FRAME_PGTK_P (f)
      && ((FRAME_ICONIFIED_P (f) && EQ (icon_title, Qt))
          || EQ (frame_title, Qt)))
    pgtk_set_name_as_filename (f);
  else
    pgtk_set_name (f, arg, 0);
}

/* Change the title of frame F to NAME.
   If NAME is nil, use the frame name as the title.  */

static void
x_set_title (struct frame *f, Lisp_Object name, Lisp_Object old_name)
{
  PGTK_TRACE ("x_set_title");
  /* Don't change the title if it's already NAME.  */
  if (EQ (name, f->title))
    return;

  update_mode_lines = 22;

  fset_title (f, name);

  if (NILP (name))
    name = f->name;
  else
    CHECK_STRING (name);

  pgtk_set_name_internal (f, name);
}

static void
pgtk_set_name_as_filename (struct frame *f)
{
  GtkWidget *widget;
  Lisp_Object name, filename;
  Lisp_Object buf = XWINDOW (f->selected_window)->contents;
  const char *title;
  Lisp_Object encoded_name, encoded_filename;
  const char *str;
  PGTK_TRACE ("pgtk_set_name_as_filename");

  if (f->explicit_name || !NILP (f->title))
    return;

  block_input ();
  filename = BVAR (XBUFFER (buf), filename);
  name = BVAR (XBUFFER (buf), name);

  if (NILP (name))
    {
      if (!NILP (filename))
        name = Ffile_name_nondirectory (filename);
      else
        name = build_string (pgtk_app_name);
    }

  encoded_name = ENCODE_UTF_8 (name);

  widget = FRAME_GTK_OUTER_WIDGET (f);


  if (!widget)
    return;

  if (!FRAME_LIVE_P (f))
    return;

  if (FRAME_PARENT_FRAME (f) || !GTK_IS_WINDOW (widget))
    return;

  title = FRAME_ICONIFIED_P (f) ? gtk_window_get_icon_name (GTK_WINDOW (widget))
                                : gtk_window_get_title (GTK_WINDOW (widget));

  if (title && (!strcmp (title, SSDATA (encoded_name))))
    {
      unblock_input ();
      return;
    }

  str = SSDATA (encoded_name);
  if (str == NULL)
    str = "Bad coding";

  if (FRAME_ICONIFIED_P (f))
    gtk_window_set_icon_name (GTK_WINDOW (widget), str);
  else
    {
      const char *fstr;

      if (!NILP (filename))
        {
          encoded_filename = ENCODE_UTF_8 (filename);

          fstr = SSDATA (encoded_filename);
          if (fstr == NULL)
            fstr = "";
        }
      else
        fstr = "";

      if (!FRAME_PARENT_FRAME (f))
	gtk_window_set_title (GTK_WINDOW (widget), str);
      fset_name (f, name);
    }

  unblock_input ();
}

void
pgtk_set_doc_edited (void)
{
}

static void
x_set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
{
#if defined (HAVE_EXT_MENU_BAR)
  int nlines;
  /* Right now, menu bars don't work properly in minibuf-only frames;
     most of the commands try to apply themselves to the minibuffer
     frame itself, and get an error because you can't switch buffers
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f) || FRAME_PARENT_FRAME (f))
    return;

  if (TYPE_RANGED_FIXNUMP (int, value))
    nlines = XFIXNUM (value);
  else
    nlines = 0;

  /* Make sure we redisplay all windows in this frame.  */
  fset_redisplay (f);

  FRAME_MENU_BAR_LINES (f) = 0;
  FRAME_MENU_BAR_HEIGHT (f) = 0;
  if (nlines)
    {
      FRAME_EXTERNAL_MENU_BAR (f) = 1;
      if (FRAME_PGTK_P (f) &&
#ifndef HAVE_GTK4
	  f->output_data.pgtk->menubar_widget == 0
#else
	  FRAME_MENU_BAR (f)
#endif
	  )
        /* Make sure next redisplay shows the menu bar.  */
        XWINDOW (FRAME_SELECTED_WINDOW (f))->update_mode_line = true;
    }
  else
    {
#ifndef HAVE_GTK4
      if (FRAME_EXTERNAL_MENU_BAR (f) == 1)
#endif
        free_frame_menubar (f);
      FRAME_EXTERNAL_MENU_BAR (f) = 0;
#ifndef HAVE_GTK4
      if (FRAME_X_P (f))
        f->output_data.pgtk->menubar_widget = 0;
#endif
    }

  adjust_frame_glyphs (f);
#endif
}

/* Set the number of lines used for the tab bar of frame F to VALUE.
   VALUE not an integer, or < 0 means set the lines to zero.  OLDVAL
   is the old number of tab bar lines.  This function changes the
   height of all windows on frame F to match the new tab bar height.
   The frame's height doesn't change.  */

static void
x_set_tab_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
{
  int nlines;

  /* Treat tab bars like menu bars.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

  /* Use VALUE only if an int >= 0.  */
  if (RANGED_FIXNUMP (0, value, INT_MAX))
    nlines = XFIXNAT (value);
  else
    nlines = 0;

  x_change_tab_bar_height (f, nlines * FRAME_LINE_HEIGHT (f));
}

/* Set the pixel height of the tab bar of frame F to HEIGHT.  */
void
x_change_tab_bar_height (struct frame *f, int height)
{
  int unit = FRAME_LINE_HEIGHT (f);
  int old_height = FRAME_TAB_BAR_HEIGHT (f);
  int lines = (height + unit - 1) / unit;
  Lisp_Object fullscreen;

  /* Make sure we redisplay all windows in this frame.  */
  fset_redisplay (f);

  /* Recalculate tab bar and frame text sizes.  */
  FRAME_TAB_BAR_HEIGHT (f) = height;
  FRAME_TAB_BAR_LINES (f) = lines;
  /* Store the `tab-bar-lines' and `height' frame parameters.  */
  store_frame_param (f, Qtab_bar_lines, make_fixnum (lines));
  store_frame_param (f, Qheight, make_fixnum (FRAME_LINES (f)));

  /* We also have to make sure that the internal border at the top of
     the frame, below the menu bar or tab bar, is redrawn when the
     tab bar disappears.  This is so because the internal border is
     below the tab bar if one is displayed, but is below the menu bar
     if there isn't a tab bar.  The tab bar draws into the area
     below the menu bar.  */
  if (FRAME_X_WINDOW (f) && FRAME_TAB_BAR_HEIGHT (f) == 0)
    {
      clear_frame (f);
      clear_current_matrices (f);
    }

  if ((height < old_height) && WINDOWP (f->tab_bar_window))
    clear_glyph_matrix (XWINDOW (f->tab_bar_window)->current_matrix);

  /* Recalculate tabbar height.  */
  f->n_tab_bar_rows = 0;
  if (old_height == 0
      && (!f->after_make_frame || NILP (frame_inhibit_implied_resize)
          || (CONSP (frame_inhibit_implied_resize)
              && NILP (Fmemq (Qtab_bar_lines, frame_inhibit_implied_resize)))))
    f->tab_bar_redisplayed = f->tab_bar_resized = false;

  adjust_frame_size (f, -1, -1,
                     ((!f->tab_bar_resized
                       && (NILP (fullscreen = get_frame_param (f, Qfullscreen))
                           || EQ (fullscreen, Qfullwidth)))
                        ? 1
                        : (old_height == 0 || height == 0) ? 2 : 4),
                     false, Qtab_bar_lines);

  f->tab_bar_resized = f->tab_bar_redisplayed;
  block_input ();
  /* adjust_frame_size might not have done anything, garbage frame
     here.  */
  adjust_frame_glyphs (f);
  SET_FRAME_GARBAGED (f);
  if (FRAME_X_WINDOW (f))
    pgtk_clear_under_internal_border (f);
  FRAME_X_OUTPUT (f)->want_flip = 0;
  unblock_input ();
}

/* Set the pixel height of the tool bar of frame F to HEIGHT.  */
static void
x_change_tool_bar_height (struct frame *f, int height)
{
#if defined (HAVE_EXT_MENU_BAR)
  FRAME_TOOL_BAR_LINES (f) = 0;
  FRAME_TOOL_BAR_HEIGHT (f) = 0;
  if (height)
    {
      FRAME_EXTERNAL_TOOL_BAR (f) = true;
      if (FRAME_X_P (f) && f->output_data.pgtk->toolbar_widget == 0)
        /* Make sure next redisplay shows the tool bar.  */
        XWINDOW (FRAME_SELECTED_WINDOW (f))->update_mode_line = true;
      update_frame_tool_bar (f);
    }
  else
    {
      free_frame_tool_bar (f);
      FRAME_EXTERNAL_TOOL_BAR (f) = false;
    }
#endif
}

/* toolbar support */
static void
x_set_tool_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
{
  int nlines;

  /* Treat tool bars like menu bars.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

  /* Use VALUE only if an int >= 0.  */
  if (RANGED_FIXNUMP (0, value, INT_MAX))
    nlines = XFIXNAT (value);
  else
    nlines = 0;

  x_change_tool_bar_height (f, nlines * FRAME_LINE_HEIGHT (f));
}

static void
x_set_internal_border_width (struct frame *f, Lisp_Object arg,
                             Lisp_Object oldval)
{
  int border = check_int_nonnegative (arg);
  if (border != FRAME_INTERNAL_BORDER_WIDTH (f))
    {
      f->internal_border_width = border;
      if (FRAME_PGTK_P (f))
	{
	  adjust_frame_size (f, -1, -1, 3, false, Qinternal_border_width);
	  if (f->face_cache)
	    pgtk_clear_under_internal_border (f);
	}
    }
}

static void
x_set_icon_type (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
#ifndef HAVE_GTK4
  GError *error_ = NULL;
  if (NILP (arg) || EQ (arg, Qt))
    {
      gtk_window_set_icon (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), NULL);
      return;
    }
  CHECK_STRING (arg);
  gtk_window_set_icon_from_file (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
                                 SSDATA (arg), &error_);
  if (error_)
    {
      Lisp_Object error_string = build_string (error_->message);
      g_error_free (error_);
      error ("%s", SSDATA (error_string));
    }
#endif
}

/* This is the same as the xfns.c definition.  */
static void
x_set_cursor_type (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
  set_frame_cursor_types (f, arg);
}

/* called to set mouse pointer color, but all other terms use it to
   initialize pointer types (and don't set the color ;) */
static void
x_set_mouse_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
{
}

static void
x_icon (struct frame *f, Lisp_Object parms)
/* --------------------------------------------------------------------------
   Strangely-named function to set icon position parameters in frame.
   This is irrelevant under macOS, but might be needed under GNUstep,
   depending on the window manager used.  Note, this is not a standard
   frame parameter-setter; it is called directly from x-create-frame.
   -------------------------------------------------------------------------- */
{
#if 0
  Lisp_Object icon_x, icon_y;
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (Qnil);

  FRAME_X_OUTPUT(f)->icon_top = -1;
  FRAME_X_OUTPUT(f)->icon_left = -1;

  /* Set the position of the icon.  */
  icon_x = gui_display_get_arg (dpyinfo, parms, Qicon_left, 0, 0, RES_TYPE_NUMBER);
  icon_y = gui_display_get_arg (dpyinfo, parms, Qicon_top, 0, 0,  RES_TYPE_NUMBER);
  if (!EQ (icon_x, Qunbound) && !EQ (icon_y, Qunbound))
    {
      CHECK_NUMBER (icon_x);
      CHECK_NUMBER (icon_y);
      FRAME_X_OUTPUT(f)->icon_top = XFIXNUM (icon_y);
      FRAME_X_OUTPUT(f)->icon_left = XFIXNUM (icon_x);
    }
  else if (!EQ (icon_x, Qunbound) || !EQ (icon_y, Qunbound))
    error ("Both left and top icon corners of icon must be specified");
#endif
}

/**
 * x_set_undecorated:
 *
 * Set frame F's `undecorated' parameter.  If non-nil, F's window-system
 * window is drawn without decorations, title, minimize/maximize boxes
 * and external borders.  This usually means that the window cannot be
 * dragged, resized, iconified, maximized or deleted with the mouse.  If
 * nil, draw the frame with all the elements listed above unless these
 * have been suspended via window manager settings.
 *
 * Some window managers may not honor this parameter.
 */
static void
x_set_undecorated (struct frame *f, Lisp_Object new_value,
                   Lisp_Object old_value)
{
  if (!EQ (new_value, old_value))
    {
      FRAME_UNDECORATED (f) = NILP (new_value) ? false : true;
#ifndef HAVE_GTK4
      xg_set_undecorated (f, new_value);
#else
      egtk_set_undecorated (f, new_value);
#endif
    }
}

/**
 * x_set_skip_taskbar:
 *
 * Set frame F's `skip-taskbar' parameter.  If non-nil, this should
 * remove F's icon from the taskbar associated with the display of F's
 * window-system window and inhibit switching to F's window via
 * <Alt>-<TAB>.  If nil, lift these restrictions.
 *
 * Some window managers may not honor this parameter.
 */
static void
x_set_skip_taskbar (struct frame *f, Lisp_Object new_value,
                    Lisp_Object old_value)
{
  if (!EQ (new_value, old_value))
    {
#ifndef HAVE_GTK4
      xg_set_skip_taskbar (f, new_value);
#else
      egtk_set_skip_taskbar (f, new_value);
#endif
      FRAME_SKIP_TASKBAR (f) = !NILP (new_value);
    }
}

/**
 * x_set_override_redirect:
 *
 * Set frame F's `override_redirect' parameter which, if non-nil, hints
 * that the window manager doesn't want to deal with F.  Usually, such
 * frames have no decorations and always appear on top of all frames.
 *
 * Some window managers may not honor this parameter.
 */
static void
x_set_override_redirect (struct frame *f, Lisp_Object new_value,
                         Lisp_Object old_value)
{
  if (!EQ (new_value, old_value))
    {
      /* Here (xfwm) override_redirect can be changed for invisible
         frames only.  */
      pgtk_make_frame_invisible (f);
#ifndef HAVE_GTK4
      xg_set_override_redirect (f, new_value);
#else
      egtk_set_override_redirect (f, new_value);
#endif

      pgtk_make_frame_visible (f);
      FRAME_OVERRIDE_REDIRECT (f) = !NILP (new_value);
    }
}

static void
pgtk_set_sticky (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
#ifndef HAVE_GTK4
  if (!NILP (new_value))
    gtk_window_stick (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
  else
    gtk_window_unstick (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
#endif
}

static void
pgtk_set_tool_bar_position (struct frame *f, Lisp_Object new_value,
                            Lisp_Object old_value)
{
  Lisp_Object choice = list4 (Qleft, Qright, Qtop, Qbottom);

  if (!NILP (Fmemq (new_value, choice)))
    {
      if (!EQ (new_value, old_value))
        {
#ifndef HAVE_GTK4
          xg_change_toolbar_position (f, new_value);
#else
	  egtk_change_toolbar_position (f, new_value);
#endif
          fset_tool_bar_position (f, new_value);
        }
    }
  else
    wrong_choice (choice, new_value);
}

static void
pgtk_set_scroll_bar_foreground (struct frame *f, Lisp_Object new_value,
                                Lisp_Object old_value)
{
#ifdef HAVE_GTK3
  GtkCssProvider *css_provider
    = FRAME_X_OUTPUT (f)->scrollbar_foreground_css_provider;

  if (NILP (new_value))
    {
#ifndef HAVE_GTK4
      gtk_css_provider_load_from_data (css_provider, "", -1, NULL);
#else
      gtk_css_provider_load_from_data (css_provider, "", -1);
#endif
    }
  else if (STRINGP (new_value))
    {
      Emacs_Color rgb;

      if (!pgtk_parse_color (SSDATA (new_value), &rgb))
        error ("Unknown color.");

      char css[64];
      sprintf (css, "scrollbar slider { background-color: #%06x; }",
               (unsigned int) rgb.pixel & 0xffffff);
#ifdef HAVE_GTK4
      gtk_css_provider_load_from_data (css_provider, css, -1);
#else
      gtk_css_provider_load_from_data (css_provider, css, -1, NULL);
#endif
    }
  else
    error ("Invalid scroll-bar-foreground.");
#endif
  // TODO for gtk 2
}

static void
pgtk_set_scroll_bar_background (struct frame *f, Lisp_Object new_value,
                                Lisp_Object old_value)
{
#ifdef HAVE_GTK3
  GtkCssProvider *css_provider
    = FRAME_X_OUTPUT (f)->scrollbar_background_css_provider;

  if (NILP (new_value))
    {
#ifdef HAVE_GTK4
      gtk_css_provider_load_from_data (css_provider, "", -1);
#else
      gtk_css_provider_load_from_data (css_provider, "", -1, NULL);
#endif
    }
  else if (STRINGP (new_value))
    {
      Emacs_Color rgb;

      if (!pgtk_parse_color (SSDATA (new_value), &rgb))
        error ("Unknown color.");

      char css[64];
      sprintf (css, "scrollbar trough { background-color: #%06x; }",
               (unsigned int) rgb.pixel & 0xffffff);
#ifdef HAVE_GTK4
      gtk_css_provider_load_from_data (css_provider, css, -1);
#else
      gtk_css_provider_load_from_data (css_provider, css, -1, NULL);
#endif
    }
  else
    error ("Invalid scroll-bar-background.");
#endif
 /* TODO implement for GTK 2 */
}

/* Note: see frame.c for template, also where generic functions are impl */
frame_parm_handler pgtk_frame_parm_handlers[] = {
  gui_set_autoraise, /* generic OK */
  gui_set_autolower, /* generic OK */
  x_set_background_color,
  x_set_border_color,
  gui_set_border_width,
  x_set_cursor_color,
  x_set_cursor_type,
  gui_set_font, /* generic OK */
  x_set_foreground_color,
  x_set_icon_name,
  x_set_icon_type,
  x_set_internal_border_width, /* generic OK */
  gui_set_right_divider_width,
  gui_set_bottom_divider_width,
  x_set_menu_bar_lines,
  x_set_mouse_color,
  x_explicitly_set_name,
  gui_set_scroll_bar_width,  /* generic OK */
  gui_set_scroll_bar_height, /* generic OK */
  x_set_title,
  gui_set_unsplittable,           /* generic OK */
  gui_set_vertical_scroll_bars,   /* generic OK */
  gui_set_horizontal_scroll_bars, /* generic OK */
  gui_set_visibility,             /* generic OK */
  x_set_tab_bar_lines,
  x_set_tool_bar_lines,
  pgtk_set_scroll_bar_foreground,
  pgtk_set_scroll_bar_background,
  gui_set_screen_gamma, /* generic OK */
  gui_set_line_spacing, /* generic OK, sets f->extra_line_spacing to int */
  gui_set_left_fringe,  /* generic OK */
  gui_set_right_fringe, /* generic OK */
  0,                    /* x_set_wait_for_wm */
  gui_set_fullscreen,   /* generic OK */
  gui_set_font_backend, /* generic OK */
  gui_set_alpha,
  pgtk_set_sticky,
  pgtk_set_tool_bar_position,
  pgtk_set_inhibit_double_buffering, /* x_set_inhibit_double_buffering */
  x_set_undecorated,
  x_set_parent_frame, /* x_set_parent_frame, */
  x_set_skip_taskbar,
  x_set_no_focus_on_map,
  x_set_no_accept_focus,
  x_set_z_group,
  x_set_override_redirect,
  gui_set_no_special_glyphs,
};

void
pgtk_set_inhibit_double_buffering (struct frame *f, Lisp_Object new_value,
                                   Lisp_Object old_value)
{
#ifndef HAVE_GTK4
  if (FRAME_GTK_WIDGET (f))
    gtk_widget_set_double_buffered (FRAME_GTK_WIDGET (f), !NILP (new_value));

  if (FRAME_GTK_OUTER_WIDGET (f))
    gtk_widget_set_double_buffered (FRAME_GTK_OUTER_WIDGET (f),
                                    !NILP (new_value));
#endif
}

/* Handler for signals raised during x_create_frame and
   x_create_tip_frame.  FRAME is the frame which is partially
   constructed.  */

static Lisp_Object
unwind_create_frame (Lisp_Object frame)
{
  struct frame *f = XFRAME (frame);

  /* If frame is already dead, nothing to do.  This can happen if the
     display is disconnected after the frame has become official, but
     before x_create_frame removes the unwind protect.  */
  if (!FRAME_LIVE_P (f))
    return Qnil;

  /* If frame is ``official'', nothing to do.  */
  if (NILP (Fmemq (frame, Vframe_list)))
    {
      /* If the frame's image cache refcount is still the same as our
         private shadow variable, it means we are unwinding a frame
         for which we didn't yet call init_frame_faces, where the
         refcount is incremented.  Therefore, we increment it here, so
         that free_frame_faces, called in x_free_frame_resources
         below, will not mistakenly decrement the counter that was not
         incremented yet to account for this new frame.  */
      if (FRAME_IMAGE_CACHE (f) != NULL
          && FRAME_IMAGE_CACHE (f)->refcount == image_cache_refcount)
        FRAME_IMAGE_CACHE (f)->refcount++;

      x_free_frame_resources (f);
      free_glyphs (f);
      return Qt;
    }

  return Qnil;
}

static void
do_unwind_create_frame (Lisp_Object frame)
{
  unwind_create_frame (frame);
}

/* Return the pixel color value for color COLOR_NAME on frame F.  If F
   is a monochrome frame, return MONO_COLOR regardless of what ARG says.
   Signal an error if color can't be allocated.  */

static int
x_decode_color (struct frame *f, Lisp_Object color_name, int mono_color)
{
  Emacs_Color cdef;

  CHECK_STRING (color_name);

  /* Return MONO_COLOR for monochrome frames.  */
  if (FRAME_DISPLAY_INFO (f)->n_planes == 1)
    return mono_color;

  /* x_defined_color is responsible for coping with failures
     by looking for a near-miss.  */
  if (pgtk_defined_color (f, SSDATA (color_name), &cdef, true, 0))
    return cdef.pixel;

  signal_error ("Undefined color", color_name);
}

void
x_set_parent_frame (struct frame *f, Lisp_Object new_value,
                    Lisp_Object old_value)
{
  struct frame *p = NULL;
  if (!NILP (new_value)
      && (!FRAMEP (new_value) || !FRAME_LIVE_P (p = XFRAME (new_value))
          || !FRAME_PGTK_P (p)))
    {
      store_frame_param (f, Qparent_frame, old_value);
      error ("Invalid specification of `parent-frame'");
    }
#ifdef HAVE_GTK4
  if (!EQ (old_value, new_value))
    eg_unparent_frame (f);
#endif
  if (p != FRAME_PARENT_FRAME (f))
    {
      block_input ();
      fset_parent_frame (f, new_value);
      unblock_input ();
    }
}

static void
x_default_font_parameter (struct frame *f, Lisp_Object parms)
{
  struct pgtk_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
  Lisp_Object font_param
    = gui_display_get_arg (dpyinfo, parms, Qfont, NULL, NULL, RES_TYPE_STRING);
  Lisp_Object font = Qnil;
  if (EQ (font_param, Qunbound))
    font_param = Qnil;

  if (NILP (font_param))
    {
      /* System font should take precedence over X resources.  We suggest this
         regardless of font-use-system-font because .emacs may not have been
         read yet.  */
      const char *system_font = xsettings_get_system_font ();
      if (system_font)
        font = font_open_by_name (f, build_unibyte_string (system_font));
    }

  if (NILP (font))
    font = !NILP (font_param)
             ? font_param
             : gui_display_get_arg (dpyinfo, parms, Qfont, "font", "Font",
                                    RES_TYPE_STRING);

  if (!FONTP (font) && !STRINGP (font))
    {
      const char *names[]
        = {"monospace-10",
           "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1",
           "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1",
           "-*-*-medium-r-normal-*-*-140-*-*-c-*-iso8859-1",
           /* This was formerly the first thing tried, but it finds
              too many fonts and takes too long.  */
           "-*-*-medium-r-*-*-*-*-*-*-c-*-iso8859-1",
           /* If those didn't work, look for something which will
              at least work.  */
           "-*-fixed-*-*-*-*-*-140-*-*-c-*-iso8859-1", "fixed", NULL};
      int i;

      for (i = 0; names[i]; i++)
        {
          font = font_open_by_name (f, build_unibyte_string (names[i]));
          if (!NILP (font))
            break;
        }
      if (NILP (font))
        error ("No suitable font was found");
    }
  else if (!NILP (font_param))
    {
      /* Remember the explicit font parameter, so we can re-apply it after
         we've applied the `default' face settings.  */
      AUTO_FRAME_ARG (arg, Qfont_parameter, font_param);
      gui_set_frame_parameters (f, arg);
    }

  /* This call will make X resources override any system font setting.  */
  gui_default_parameter (f, parms, Qfont, font, "font", "Font",
                         RES_TYPE_STRING);
}

/* ==========================================================================

    Lisp definitions

   ========================================================================== */

DEFUN ("x-create-frame", Fx_create_frame, Sx_create_frame,
       1, 1, 0,
       doc: /* Make a new X window, which is called a "frame" in Emacs terms.
Return an Emacs frame object.  PARMS is an alist of frame parameters.
If the parameters specify that the frame should not have a minibuffer,
and do not specify a specific minibuffer window to use, then
`default-minibuffer-frame' must be a frame whose minibuffer can be
shared by the new frame.

This function is an internal primitive--use `make-frame' instead.  */)
(Lisp_Object parms)
{
  struct frame *f;
  Lisp_Object frame, tem;
  Lisp_Object name;
  bool minibuffer_only = false;
#ifndef HAVE_GTK4
  long window_prompting = 0;
#endif
  bool undecorated = false, override_redirect = false;
  ptrdiff_t count = SPECPDL_INDEX ();
  Lisp_Object display;
  struct pgtk_display_info *dpyinfo = NULL;
  Lisp_Object parent, parent_frame;
  struct kboard *kb;
  int x_width = 0, x_height = 0;

  parms = Fcopy_alist (parms);

  /* Use this general default value to start with
     until we know if this frame has a specified name.  */
  Vx_resource_name = Vinvocation_name;

  display
    = gui_display_get_arg (dpyinfo, parms, Qterminal, 0, 0, RES_TYPE_NUMBER);
  if (EQ (display, Qunbound))
    display
      = gui_display_get_arg (dpyinfo, parms, Qdisplay, 0, 0, RES_TYPE_STRING);
  if (EQ (display, Qunbound))
    display = Qnil;
  dpyinfo = check_pgtk_display_info (display);
  kb = dpyinfo->terminal->kboard;

  if (!dpyinfo->terminal->name)
    error ("Terminal is not live, can't create new frames on it");

  name = gui_display_get_arg (dpyinfo, parms, Qname, "name", "Name",
                              RES_TYPE_STRING);
  if (!STRINGP (name) && !EQ (name, Qunbound) && !NILP (name))
    error ("Invalid frame name--not a string or nil");

  if (STRINGP (name))
    Vx_resource_name = name;

  /* See if parent window is specified.  */
  parent = gui_display_get_arg (dpyinfo, parms, Qparent_id, NULL, NULL,
                                RES_TYPE_NUMBER);
  if (EQ (parent, Qunbound))
    parent = Qnil;
  if (!NILP (parent))
    CHECK_NUMBER (parent);

  frame = Qnil;
  tem = gui_display_get_arg (dpyinfo, parms, Qminibuffer, "minibuffer",
                             "Minibuffer", RES_TYPE_SYMBOL);
  if (EQ (tem, Qnone) || NILP (tem))
    f = make_frame_without_minibuffer (Qnil, kb, display);
  else if (EQ (tem, Qonly))
    {
      f = make_minibuffer_frame ();
      minibuffer_only = true;
    }
  else if (WINDOWP (tem))
    f = make_frame_without_minibuffer (tem, kb, display);
  else
    f = make_frame (true);

  parent_frame = gui_display_get_arg (dpyinfo, parms, Qparent_frame, NULL, NULL,
                                      RES_TYPE_SYMBOL);
  /* Accept parent-frame iff parent-id was not specified.  */
  if (!NILP (parent) || EQ (parent_frame, Qunbound) || NILP (parent_frame)
      || !FRAMEP (parent_frame) || !FRAME_LIVE_P (XFRAME (parent_frame))
      || !FRAME_PGTK_P (XFRAME (parent_frame)))
    parent_frame = Qnil;

  f->terminal = dpyinfo->terminal;

  store_frame_param (f, Qparent_frame, parent_frame);

  if (!NILP (tem = (gui_display_get_arg (dpyinfo, parms, Qundecorated, NULL,
                                         NULL, RES_TYPE_BOOLEAN)))
      && !(EQ (tem, Qunbound)))
    undecorated = true;

  FRAME_UNDECORATED (f) = undecorated;
  store_frame_param (f, Qundecorated, undecorated ? Qt : Qnil);

  if (!NILP (tem = (gui_display_get_arg (dpyinfo, parms, Qoverride_redirect,
                                         NULL, NULL, RES_TYPE_BOOLEAN)))
      && !(EQ (tem, Qunbound)))
    override_redirect = true;

  FRAME_OVERRIDE_REDIRECT (f) = override_redirect;
  store_frame_param (f, Qoverride_redirect, override_redirect ? Qt : Qnil);
  store_frame_param (f, Qheader_bar_icons, Qt);
#ifdef HAVE_GTK4
  store_frame_param (f, Qheader_bar, Qt);
#endif
  XSETFRAME (frame, f);

  f->output_method = output_pgtk;
  FRAME_X_OUTPUT (f) = xzalloc (sizeof *FRAME_X_OUTPUT (f));
#if 0
  FRAME_X_OUTPUT(f)->icon_bitmap = -1;
#endif
  FRAME_FONTSET (f) = -1;
  FRAME_X_OUTPUT (f)->white_relief.pixel = -1;
  FRAME_X_OUTPUT (f)->black_relief.pixel = -1;

  FRAME_X_OUTPUT (f)->clip_count = 0;
#ifdef HAVE_GTK3
  FRAME_X_OUTPUT (f)->scrollbar_foreground_css_provider
    = gtk_css_provider_new ();
  FRAME_X_OUTPUT (f)->scrollbar_background_css_provider
    = gtk_css_provider_new ();
#endif

  FRAME_X_OUTPUT (f)->menubar_or_popup_count = 0;
#ifdef HAVE_GTK4
  FRAME_X_OUTPUT (f)->hyper_flag = 0;
  FRAME_X_OUTPUT (f)->last_focus_child_frame = 0;
#endif
  fset_icon_name (f,
                  gui_display_get_arg (dpyinfo, parms, Qicon_name, "iconName",
                                       "Title", RES_TYPE_STRING));
  if (!STRINGP (f->icon_name))
    fset_icon_name (f, Qnil);

  FRAME_DISPLAY_INFO (f) = dpyinfo;

  /* With FRAME_DISPLAY_INFO set up, this unwind-protect is safe.  */
  record_unwind_protect (do_unwind_create_frame, frame);

  /* These colors will be set anyway later, but it's important
     to get the color reference counts right, so initialize them!  */
  {
    Lisp_Object black;

    /* Function x_decode_color can signal an error.  Make
       sure to initialize color slots so that we won't try
       to free colors we haven't allocated.  */
    FRAME_FOREGROUND_PIXEL (f) = -1;
    FRAME_BACKGROUND_PIXEL (f) = -1;
    FRAME_X_OUTPUT (f)->cursor_color = -1;
    FRAME_X_OUTPUT (f)->cursor_foreground_color = -1;
#ifdef HAVE_GTK3
    FRAME_X_OUTPUT (f)->border_pixel = -1;
#endif
    FRAME_X_OUTPUT (f)->mouse_color = -1;
#ifdef HAVE_GTK4
    FRAME_X_OUTPUT (f)->child_frame_order = NULL;
#endif

    black = build_string ("black");
    FRAME_FOREGROUND_PIXEL (f)
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
    FRAME_BACKGROUND_PIXEL (f)
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
    FRAME_X_OUTPUT (f)->cursor_color
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
    FRAME_X_OUTPUT (f)->cursor_foreground_color
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
#ifdef HAVE_GTK3
    FRAME_X_OUTPUT (f)->border_pixel
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
#endif
    FRAME_X_OUTPUT (f)->mouse_color
      = x_decode_color (f, black, BLACK_PIX_DEFAULT (f));
  }

  /* Specify the parent under which to make this X window.  */
  if (!NILP (parent))
    {
      FRAME_X_OUTPUT (f)->parent_desc = (GWindow) XFIXNAT (parent);
      FRAME_X_OUTPUT (f)->explicit_parent = true;
    }
  else
    {
      FRAME_X_OUTPUT (f)->parent_desc = FRAME_DISPLAY_INFO (f)->root_window;
      FRAME_X_OUTPUT (f)->explicit_parent = false;
    }

#ifdef HAVE_GTK4
  FRAME_X_OUTPUT (f)->mbar_deep_atimer = NULL;
#endif

  /* Set the name; the functions to which we pass f expect the name to
     be set.  */
  if (EQ (name, Qunbound) || NILP (name))
    {
      fset_name (f, build_string (dpyinfo->x_id_name));
      f->explicit_name = false;
    }
  else
    {
      fset_name (f, name);
      f->explicit_name = true;
      /* Use the frame's title when getting resources for this frame.  */
      specbind (Qx_resource_name, name);
    }

  register_font_driver (&ftcrfont_driver, f);
#ifdef HAVE_HARFBUZZ
  register_font_driver (&ftcrhbfont_driver, f);
#endif	/* HAVE_HARFBUZZ */
  image_cache_refcount
    = FRAME_IMAGE_CACHE (f) ? FRAME_IMAGE_CACHE (f)->refcount : 0;
#if 0
#ifdef GLYPH_DEBUG
  dpyinfo_refcount = dpyinfo->reference_count;
#endif /* GLYPH_DEBUG */
#endif

  gui_default_parameter (f, parms, Qfont_backend, Qnil, "fontBackend",
                         "FontBackend", RES_TYPE_STRING);

  /* Extract the window parameters from the supplied values
     that are needed to determine window geometry.  */
  x_default_font_parameter (f, parms);
  if (!FRAME_FONT (f))
    {
      delete_frame (frame, Qnoelisp);
      error ("Invalid frame font");
    }

    /* Frame contents get displaced if an embedded X window has a border.  */
#if 0
  if (! FRAME_X_EMBEDDED_P (f))
#endif
  gui_default_parameter (f, parms, Qborder_width, make_fixnum (0),
                         "borderWidth", "BorderWidth", RES_TYPE_NUMBER);

  /* This defaults to 1 in order to match xterm.  We recognize either
     internalBorderWidth or internalBorder (which is what xterm calls
     it).  */
  if (NILP (Fassq (Qinternal_border_width, parms)))
    {
      Lisp_Object value;

      value = gui_display_get_arg (dpyinfo, parms, Qinternal_border_width,
                                   "internalBorder", "internalBorder",
                                   RES_TYPE_NUMBER);
      if (!EQ (value, Qunbound))
        parms = Fcons (Fcons (Qinternal_border_width, value), parms);
    }
  gui_default_parameter (f, parms, Qinternal_border_width, make_fixnum (0),
                         "internalBorderWidth", "internalBorderWidth",
                         RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qright_divider_width, make_fixnum (0), NULL,
                         NULL, RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qbottom_divider_width, make_fixnum (0), NULL,
                         NULL, RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qvertical_scroll_bars, Qright,
                         "verticalScrollBars", "ScrollBars", RES_TYPE_SYMBOL);
  gui_default_parameter (f, parms, Qhorizontal_scroll_bars, Qnil,
                         "horizontalScrollBars", "ScrollBars", RES_TYPE_SYMBOL);
  /* Also do the stuff which must be set before the window exists.  */
  gui_default_parameter (f, parms, Qforeground_color, build_string ("black"),
                         "foreground", "Foreground", RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qbackground_color, build_string ("white"),
                         "background", "Background", RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qmouse_color, build_string ("black"),
                         "pointerColor", "Foreground", RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qborder_color, build_string ("black"),
                         "borderColor", "BorderColor", RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qscreen_gamma, Qnil, "screenGamma",
                         "ScreenGamma", RES_TYPE_FLOAT);
  gui_default_parameter (f, parms, Qline_spacing, Qnil, "lineSpacing",
                         "LineSpacing", RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qleft_fringe, Qnil, "leftFringe",
                         "LeftFringe", RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qright_fringe, Qnil, "rightFringe",
                         "RightFringe", RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qno_special_glyphs, Qnil, NULL, NULL,
                         RES_TYPE_BOOLEAN);

  gui_default_parameter (f, parms, Qscroll_bar_foreground, Qnil,
                         "scrollBarForeground", "ScrollBarForeground",
                         RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qscroll_bar_background, Qnil,
                         "scrollBarBackground", "ScrollBarBackground",
                         RES_TYPE_STRING);

  /* Init faces before gui_default_parameter is called for the
     scroll-bar-width parameter because otherwise we end up in
     init_iterator with a null face cache, which should not happen.  */
  init_frame_faces (f);

  /* We have to call adjust_frame_size here since otherwise
     x_set_tool_bar_lines will already work with the character sizes
     installed by init_frame_faces while the frame's pixel size is still
     calculated from a character size of 1 and we subsequently hit the
     (height >= 0) assertion in window_box_height.

     The non-pixelwise code apparently worked around this because it
     had one frame line vs one toolbar line which left us with a zero
     root window height which was obviously wrong as well ...

     Also process `min-width' and `min-height' parameters right here
     because `frame-windows-min-size' needs them.  */
  tem = gui_display_get_arg (dpyinfo, parms, Qmin_width, NULL, NULL,
                             RES_TYPE_NUMBER);
  if (NUMBERP (tem))
    store_frame_param (f, Qmin_width, tem);
  tem = gui_display_get_arg (dpyinfo, parms, Qmin_height, NULL, NULL,
                             RES_TYPE_NUMBER);
  if (NUMBERP (tem))
    store_frame_param (f, Qmin_height, tem);
  adjust_frame_size (f, FRAME_COLS (f) * FRAME_COLUMN_WIDTH (f),
                     FRAME_LINES (f) * FRAME_LINE_HEIGHT (f), 5, true,
                     Qx_create_frame_1);

  /* Set the menu-bar-lines and tool-bar-lines parameters.  We don't
     look up the X resources controlling the menu-bar and tool-bar
     here; they are processed specially at startup, and reflected in
     the values of the mode variables.  */

  gui_default_parameter (f, parms, Qmenu_bar_lines,
                         NILP (Vmenu_bar_mode) ? make_fixnum (0)
                                               : make_fixnum (1),
                         NULL, NULL, RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qtab_bar_lines,
                         NILP (Vtab_bar_mode) ? make_fixnum (0)
                                              : make_fixnum (1),
                         NULL, NULL, RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qtool_bar_lines,
                         NILP (Vtool_bar_mode) ? make_fixnum (0)
                                               : make_fixnum (1),
                         NULL, NULL, RES_TYPE_NUMBER);

  gui_default_parameter (f, parms, Qbuffer_predicate, Qnil, "bufferPredicate",
                         "BufferPredicate", RES_TYPE_SYMBOL);
  gui_default_parameter (f, parms, Qtitle, Qnil, "title", "Title",
                         RES_TYPE_STRING);
  gui_default_parameter (f, parms, Qwait_for_wm, Qt, "waitForWM", "WaitForWM",
                         RES_TYPE_BOOLEAN);
  gui_default_parameter (f, parms, Qtool_bar_position,
                         FRAME_TOOL_BAR_POSITION (f), 0, 0, RES_TYPE_SYMBOL);
  gui_default_parameter (f, parms, Qinhibit_double_buffering, Qnil,
                         "inhibitDoubleBuffering", "InhibitDoubleBuffering",
                         RES_TYPE_BOOLEAN);
#ifndef HAVE_GTK4
  /* Compute the size of the X window.  */
  window_prompting =
#endif
    gui_figure_window_size (f, parms, true, true, &x_width, &x_height);
  tem = gui_display_get_arg (dpyinfo, parms, Qunsplittable, 0, 0,
                             RES_TYPE_BOOLEAN);
  f->no_split = minibuffer_only || EQ (tem, Qt);

#if 0
  x_icon_verify (f, parms);
#endif

#ifdef HAVE_GTK4
  egtk_create_frame_widgets (f);
  fset_parent_frame (f, parent_frame);
#else
  xg_create_frame_widgets (f);
#endif
#if defined(HAVE_GTK3) || defined (HAVE_GTK4)
  FRAME_GTK_EV_HANDLER (f) = emacs_gtk_event_handler_new (f);
  FRAME_GTK_ES_HANDLER (f) = emacs_gtk_event_handler_new (f);
  g_object_ref (FRAME_GTK_EV_HANDLER (f));
  g_object_ref (FRAME_GTK_ES_HANDLER (f));
#endif
  pgtk_set_event_handler (f);

#ifndef HAVE_GTK4
#define INSTALL_CURSOR(FIELD, NAME) \
  FRAME_X_OUTPUT (f)->FIELD         \
    = gdk_cursor_new_for_display (FRAME_X_DISPLAY (f), GDK_##NAME)

  INSTALL_CURSOR (text_cursor, XTERM);
  INSTALL_CURSOR (nontext_cursor, LEFT_PTR);
  INSTALL_CURSOR (modeline_cursor, XTERM);
  INSTALL_CURSOR (hand_cursor, HAND2);
  INSTALL_CURSOR (hourglass_cursor, WATCH);
  INSTALL_CURSOR (horizontal_drag_cursor, SB_H_DOUBLE_ARROW);
  INSTALL_CURSOR (vertical_drag_cursor, SB_V_DOUBLE_ARROW);
  INSTALL_CURSOR (left_edge_cursor, LEFT_SIDE);
  INSTALL_CURSOR (right_edge_cursor, RIGHT_SIDE);
  INSTALL_CURSOR (top_edge_cursor, TOP_SIDE);
  INSTALL_CURSOR (bottom_edge_cursor, BOTTOM_SIDE);
  INSTALL_CURSOR (top_left_corner_cursor, TOP_LEFT_CORNER);
  INSTALL_CURSOR (top_right_corner_cursor, TOP_RIGHT_CORNER);
  INSTALL_CURSOR (bottom_right_corner_cursor, BOTTOM_RIGHT_CORNER);
  INSTALL_CURSOR (bottom_left_corner_cursor, BOTTOM_LEFT_CORNER);
#undef INSTALL_CURSOR
#else
  FRAME_X_OUTPUT (f)->text_cursor = gdk_cursor_new_from_name ("text", NULL);
  FRAME_X_OUTPUT (f)->nontext_cursor = gdk_cursor_new_from_name ("default", NULL);
  FRAME_X_OUTPUT (f)->modeline_cursor = gdk_cursor_new_from_name ("default", NULL);
  FRAME_X_OUTPUT (f)->hand_cursor = gdk_cursor_new_from_name ("pointer", NULL);
  FRAME_X_OUTPUT (f)->hourglass_cursor = gdk_cursor_new_from_name ("wait", NULL);
  FRAME_X_OUTPUT (f)->horizontal_drag_cursor = gdk_cursor_new_from_name ("col-resize", NULL);
  FRAME_X_OUTPUT (f)->vertical_drag_cursor = gdk_cursor_new_from_name ("row-resize", NULL);
  FRAME_X_OUTPUT (f)->bottom_right_corner_cursor = gdk_cursor_new_from_name ("se-resize", NULL);
  FRAME_X_OUTPUT (f)->bottom_left_corner_cursor = gdk_cursor_new_from_name ("sw-resize", NULL);
  FRAME_X_OUTPUT (f)->top_right_corner_cursor = gdk_cursor_new_from_name ("ne-resize", NULL);
  FRAME_X_OUTPUT (f)->top_left_corner_cursor = gdk_cursor_new_from_name ("nw-resize", NULL);
  FRAME_X_OUTPUT (f)->left_edge_cursor = gdk_cursor_new_from_name ("w-resize", NULL);
  FRAME_X_OUTPUT (f)->right_edge_cursor = gdk_cursor_new_from_name ("e-resize", NULL);
  FRAME_X_OUTPUT (f)->top_edge_cursor = gdk_cursor_new_from_name ("n-resize", NULL);
  FRAME_X_OUTPUT (f)->bottom_edge_cursor = gdk_cursor_new_from_name ("s-resize", NULL);
#endif

  x_icon (f, parms);

  /* Now consider the frame official.  */
  f->terminal->reference_count++;
  FRAME_DISPLAY_INFO (f)->reference_count++;
  Vframe_list = Fcons (frame, Vframe_list);

  /* We need to do this after creating the X window, so that the
     icon-creation functions can say whose icon they're describing.  */
  gui_default_parameter (f, parms, Qicon_type, Qt, "bitmapIcon", "BitmapIcon",
                         RES_TYPE_BOOLEAN);

  gui_default_parameter (f, parms, Qauto_raise, Qnil, "autoRaise",
                         "AutoRaiseLower", RES_TYPE_BOOLEAN);
  gui_default_parameter (f, parms, Qauto_lower, Qnil, "autoLower",
                         "AutoRaiseLower", RES_TYPE_BOOLEAN);
  gui_default_parameter (f, parms, Qcursor_type, Qbox, "cursorType",
                         "CursorType", RES_TYPE_SYMBOL);
  gui_default_parameter (f, parms, Qscroll_bar_width, Qnil, "scrollBarWidth",
                         "ScrollBarWidth", RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qscroll_bar_height, Qnil, "scrollBarHeight",
                         "ScrollBarHeight", RES_TYPE_NUMBER);
  gui_default_parameter (f, parms, Qalpha, Qnil, "alpha", "Alpha",
                         RES_TYPE_NUMBER);
#if 0
  if (!NILP (parent_frame))
    {
      struct frame *p = XFRAME (parent_frame);

      block_input ();
      XReparentWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
		       FRAME_X_WINDOW (p), f->left_pos, f->top_pos);
      unblock_input ();
    }
#endif

  gui_default_parameter (f, parms, Qno_focus_on_map, Qnil, NULL, NULL,
                         RES_TYPE_BOOLEAN);
  gui_default_parameter (f, parms, Qno_accept_focus, Qnil, NULL, NULL,
                         RES_TYPE_BOOLEAN);

  /* Consider frame official, now.  */
  f->can_set_window_size = true;

  if (x_width > 0)
    SET_FRAME_WIDTH (f, x_width);
  if (x_height > 0)
    SET_FRAME_HEIGHT (f, x_height);

  /* Tell the server what size and position, etc, we want, and how
     badly we want them.  This should be done after we have the menu
     bar so that its size can be taken into account.  */
  block_input ();
#ifndef HAVE_GTK4
  x_wm_set_size_hint (f, window_prompting, false);
#endif
  unblock_input ();

  adjust_frame_size (f, FRAME_TEXT_WIDTH (f), FRAME_TEXT_HEIGHT (f), 0, true,
                     Qx_create_frame_2);

  /* Process fullscreen parameter here in the hope that normalizing a
     fullheight/fullwidth frame will produce the size set by the last
     adjust_frame_size call.  */
  gui_default_parameter (f, parms, Qfullscreen, Qnil, "fullscreen",
                         "Fullscreen", RES_TYPE_SYMBOL);

  /* Make the window appear on the frame and enable display, unless
     the caller says not to.  However, with explicit parent, Emacs
     cannot control visibility, so don't try.  */
  if (!FRAME_X_OUTPUT (f)->explicit_parent)
    {
      Lisp_Object visibility = gui_display_get_arg (dpyinfo, parms, Qvisibility,
                                                    0, 0, RES_TYPE_SYMBOL);

      if (EQ (visibility, Qicon))
        pgtk_iconify_frame (f);
      else
        {
          if (EQ (visibility, Qunbound))
            visibility = Qt;

          if (!NILP (visibility))
            pgtk_make_frame_visible (f);
        }

      store_frame_param (f, Qvisibility, visibility);
    }

  /* Works iff frame has been already mapped.  */
  gui_default_parameter (f, parms, Qskip_taskbar, Qnil, NULL, NULL,
                         RES_TYPE_BOOLEAN);
  /* The `z-group' parameter works only for visible frames.  */
  gui_default_parameter (f, parms, Qz_group, Qnil, NULL, NULL, RES_TYPE_SYMBOL);

  /* Initialize `default-minibuffer-frame' in case this is the first
     frame on this terminal.  */
  if (FRAME_HAS_MINIBUF_P (f)
      && (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
          || !FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame)))))
    kset_default_minibuffer_frame (kb, frame);

  /* Create the menu bar.  */
  if (!minibuffer_only && FRAME_EXTERNAL_MENU_BAR (f))
    {
      /* If this signals an error, we haven't set size hints for the
         frame and we didn't make it visible.  */
      initialize_frame_menubar (f);
    }

  /* All remaining specified parameters, which have not been "used"
     by gui_display_get_arg and friends, now go in the misc. alist of the frame.
   */
  for (tem = parms; CONSP (tem); tem = XCDR (tem))
    if (CONSP (XCAR (tem)) && !NILP (XCAR (XCAR (tem))))
      fset_param_alist (f, Fcons (XCAR (tem), f->param_alist));
#ifdef HAVE_GTK4
  FRAME_X_OUTPUT (f)->keep_above = NULL;
#endif
#ifdef HAVE_GTK3
  FRAME_X_OUTPUT (f)->border_color_css_provider = NULL;
#endif

  FRAME_X_OUTPUT (f)->cr_surface_visible_bell = NULL;
  FRAME_X_OUTPUT (f)->atimer_visible_bell = NULL;

  /* Make sure windows on this frame appear in calls to next-window
     and similar functions.  */
  Vwindow_list = Qnil;
#ifndef HAVE_GTK4
  fset_parent_frame (f, parent_frame);
#endif
#ifdef HAVE_GTK4
  pgtk_dnd_init (f);
  FRAME_X_OUTPUT (f)->ts_up_flag = false;
  if (NILP (Vtool_bar_mode))
    free_frame_tool_bar (f);
#endif
  return unbind_to (count, frame);
}

#if 0
static int
pgtk_window_is_ancestor (PGTKWindow *win, PGTKWindow *candidate)
/* Test whether CANDIDATE is an ancestor window of WIN. */
{
  if (candidate == NULL)
    return 0;
  else if (win == candidate)
    return 1;
  else
    return pgtk_window_is_ancestor(win, [candidate parentWindow]);
}
#endif

/**
 * x_frame_restack:
 *
 * Restack frame F1 below frame F2, above if ABOVE_FLAG is non-nil.  In
 * practice this is a two-step action: The first step removes F1's
 * window-system window from the display.  The second step reinserts
 * F1's window below (above if ABOVE_FLAG is true) that of F2.
 */
static void
pgtk_frame_restack (struct frame *f1, struct frame *f2, bool above_flag)
{
  block_input ();
#ifndef HAVE_GTK4
  xg_frame_restack (f1, f2, above_flag);
#else
  egtk_frame_restack (f1, f2, above_flag);
#endif
  unblock_input ();
}

DEFUN ("pgtk-frame-restack", Fpgtk_frame_restack, Spgtk_frame_restack, 2, 3, 0,
       doc: /* Restack FRAME1 below FRAME2.
This means that if both frames are visible and the display areas of
these frames overlap, FRAME2 (partially) obscures FRAME1.  If optional
third argument ABOVE is non-nil, restack FRAME1 above FRAME2.  This
means that if both frames are visible and the display areas of these
frames overlap, FRAME1 (partially) obscures FRAME2.

This may be thought of as an atomic action performed in two steps: The
first step removes FRAME1's window-step window from the display.  The
second step reinserts FRAME1's window below (above if ABOVE is true)
that of FRAME2.  Hence the position of FRAME2 in its display's Z
\(stacking) order relative to all other frames excluding FRAME1 remains
unaltered.

Some window managers may refuse to restack windows.  */)
(Lisp_Object frame1, Lisp_Object frame2, Lisp_Object above)
{
  struct frame *f1 = decode_live_frame (frame1);
  struct frame *f2 = decode_live_frame (frame2);

  if (!(FRAME_GTK_OUTER_WIDGET (f1) && FRAME_GTK_OUTER_WIDGET (f2)))
    error ("Cannot restack frames");
  pgtk_frame_restack (f1, f2, !NILP (above));
  return Qt;
}

#ifdef HAVE_GSETTINGS

#define RESOURCE_KEY_MAX_LEN 128
#define SCHEMA_ID "org.gnu.emacs.defaults"
#define PATH_FOR_CLASS_TYPE "/org/gnu/emacs/defaults-by-class/"
#define PATH_PREFIX_FOR_NAME_TYPE "/org/gnu/emacs/defaults-by-name/"

static inline int
pgtk_is_lower_char (int c)
{
  return c >= 'a' && c <= 'z';
}

static inline int
pgtk_is_upper_char (int c)
{
  return c >= 'A' && c <= 'Z';
}

static inline int
pgtk_is_numeric_char (int c)
{
  return c >= '0' && c <= '9';
}

#ifndef GLIB_VERSION_2_40
static gboolean
g_settings_schema_has_key (GSettingsSchema *schema, const gchar *key)
{
  for (char **keys = g_settings_list_keys (schema); keys; ++keys)
    {
      if (strcmp (keys[0], key))
        return true;
    }
  return false;
}
#endif

static GSettings *
parse_resource_key (const char *res_key, char *setting_key)
{
  char path[32 + RESOURCE_KEY_MAX_LEN];
  const char *sp = res_key;
  char *dp;

  /*
   * res_key="emacs.cursorBlink"
   *   -> path="/org/gnu/emacs/defaults-by-name/emacs/"
   *      setting_key="cursor-blink"
   *
   * res_key="Emacs.CursorBlink"
   *   -> path="/org/gnu/emacs/defaults-by-class/"
   *      setting_key="cursor-blink"
   *
   * Returns GSettings* if setting_key exists in schema, otherwise NULL.
   */

  /* generate path */
  if (pgtk_is_upper_char (*sp))
    {
      /* First letter is upper case. It should be "Emacs",
       * but don't care.
       */
      strcpy (path, PATH_FOR_CLASS_TYPE);
      while (*sp != '\0')
        {
          if (*sp == '.')
            break;
          sp++;
        }
    }
  else
    {
      strcpy (path, PATH_PREFIX_FOR_NAME_TYPE);
      dp = path + strlen (path);
      while (*sp != '\0')
        {
          int c = *sp;
          if (c == '.')
            break;
          if (pgtk_is_lower_char (c))
            (void) 0; /* lower -> NOP */
          else if (pgtk_is_upper_char (c))
            c = c - 'A' + 'a'; /* upper -> lower */
          else if (pgtk_is_numeric_char (c))
            (void) 0; /* numeric -> NOP */
          else
            return NULL; /* invalid */
          *dp++ = c;
          sp++;
        }
      *dp++ = '/'; /* must ends with '/' */
      *dp = '\0';
    }

  if (*sp++ != '.')
    return NULL;

  /* generate setting_key */
  dp = setting_key;
  while (*sp != '\0')
    {
      int c = *sp;
      if (pgtk_is_lower_char (c))
        (void) 0; /* lower -> NOP */
      else if (pgtk_is_upper_char (c))
        {
          c = c - 'A' + 'a'; /* upper -> lower */
          if (dp != setting_key)
            *dp++ = '-'; /* store '-' unless first char */
        }
      else if (pgtk_is_numeric_char (c))
        (void) 0; /* numeric -> NOP */
      else
        return NULL; /* invalid */

      *dp++ = c;
      sp++;
    }
  *dp = '\0';

  /* check existence of setting_key */
  GSettingsSchemaSource *ssrc = g_settings_schema_source_get_default ();
  GSettingsSchema *scm
    = g_settings_schema_source_lookup (ssrc, SCHEMA_ID, FALSE);
  if (scm == NULL)
    {
      return NULL;
    }

  if (!g_settings_schema_has_key (scm, setting_key))
    {
      g_settings_schema_unref (scm);
      return NULL;
    }

  /* create GSettings, and return it */
  GSettings *gs = g_settings_new_full (scm, NULL, path);

  g_settings_schema_unref (scm);
  return gs;
}

const char *
pgtk_get_defaults_value (const char *key)
{
  char skey[(RESOURCE_KEY_MAX_LEN + 1) * 2];

  if (strlen (key) >= RESOURCE_KEY_MAX_LEN)
    error ("resource key too long.");

  GSettings *gs = parse_resource_key (key, skey);
  if (gs == NULL)
    {
      return NULL;
    }

  gchar *str = g_settings_get_string (gs, skey);

  /* There is no timing to free str.
   * So, copy it here and free it.
   *
   * MEMO: Resource values for emacs shouldn't need such a long string value.
   */
  static char holder[128];
  strncpy (holder, str, 128);
  holder[127] = '\0';

  g_object_unref (gs);
  g_free (str);
  return holder[0] != '\0' ? holder : NULL;
}

static void
pgtk_set_defaults_value (const char *key, const char *value)
{
  char skey[(RESOURCE_KEY_MAX_LEN + 1) * 2];

  if (strlen (key) >= RESOURCE_KEY_MAX_LEN)
    error ("resource key too long.");

  GSettings *gs = parse_resource_key (key, skey);
  if (gs == NULL)
    error ("unknown resource key.");

  if (value != NULL)
    {
      g_settings_set_string (gs, skey, value);
    }
  else
    {
      g_settings_reset (gs, skey);
    }

  g_object_unref (gs);
}

#undef RESOURCE_KEY_MAX_LEN
#undef SCHEMA_ID
#undef PATH_FOR_CLASS_TYPE
#undef PATH_PREFIX_FOR_NAME_TYPE

#else /* not HAVE_GSETTINGS */

const char *
pgtk_get_defaults_value (const char *key)
{
  return NULL;
}

static void
pgtk_set_defaults_value (const char *key, const char *value)
{
  error ("gsettings not supported.");
}

#endif

DEFUN ("pgtk-set-resource", Fpgtk_set_resource, Spgtk_set_resource, 2, 2, 0,
       doc: /* Set the value of ATTRIBUTE, of class CLASS, as VALUE, into defaults database. */)
(Lisp_Object attribute, Lisp_Object value)
{
  check_window_system (NULL);

  CHECK_STRING (attribute);
  if (!NILP (value))
    CHECK_STRING (value);

  char *res = SSDATA (Vx_resource_name);
  char *attr = SSDATA (attribute);
  if (attr[0] >= 'A' && attr[0] <= 'Z')
    res = SSDATA (Vx_resource_class);

  char *key = g_strdup_printf ("%s.%s", res, attr);

  pgtk_set_defaults_value (key, NILP (value) ? NULL : SSDATA (value));

  return Qnil;
}

DEFUN ("x-server-max-request-size", Fx_server_max_request_size,
       Sx_server_max_request_size, 0, 1, 0, doc
       : /* This function is a no-op.  It is only present for completeness.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  /* This function has no real equivalent under PGTK.  Return nil to
     indicate this. */
  return Qnil;
}

DEFUN ("x-select-font", Fx_select_font, Sx_select_font, 0, 2, 0,
       doc: /* Read a font using a GTK dialog.
Return either a font spec (for GTK versions >= 3.2) or a string
containing a GTK-style font name.

FRAME is the frame on which to pop up the font chooser.  If omitted or
nil, it defaults to the selected frame. */)
  (Lisp_Object frame, Lisp_Object ignored)
{
  struct frame *f = decode_window_system_frame (frame);
  Lisp_Object font;
  Lisp_Object font_param;
  char *default_name = NULL;
  ptrdiff_t count = SPECPDL_INDEX ();

  /* Prevent redisplay.  */
  specbind (Qinhibit_redisplay, Qt);

  block_input ();

  XSETFONT (font, FRAME_FONT (f));
  font_param = Ffont_get (font, QCname);
  if (STRINGP (font_param))
    default_name = xlispstrdup (font_param);
  else
    {
      font_param = Fframe_parameter (frame, Qfont_parameter);
      if (STRINGP (font_param))
        default_name = xlispstrdup (font_param);
    }
#ifndef HAVE_GTK4
  font = xg_get_font (f, default_name);
#else
  font = egtk_get_font (f, default_name);
#endif
  xfree (default_name);

  unblock_input ();

  if (NILP (font))
    quit ();

  return unbind_to (count, font);
}

DEFUN ("x-server-vendor", Fx_server_vendor, Sx_server_vendor, 0, 1, 0,
       doc: /* Return the "vendor ID" string of the display server TERMINAL.
\(Labeling every distributor as a "vendor" embodies the false assumption
that operating systems cannot be developed and distributed noncommercially.)
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return build_string ("The GNU project's GTK toolkit.");
}

DEFUN ("x-server-version", Fx_server_version, Sx_server_version, 0, 1, 0,
       doc: /* Return the version numbers of the server of display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return list3 (make_fixnum (GTK_MAJOR_VERSION),
                make_fixnum (GTK_MINOR_VERSION),
                make_fixnum (GTK_MICRO_VERSION));
}

DEFUN ("x-display-screens", Fx_display_screens, Sx_display_screens, 0, 1, 0,
       doc: /* Return the number of screens on the display server TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

Note: "screen" here is not in X11's.  For the number of physical monitors,
 use `(length \(display-monitor-attributes-list TERMINAL))' instead.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return make_fixnum (1);
}

DEFUN ("x-display-mm-height", Fx_display_mm_height, Sx_display_mm_height, 0, 1, 0,
       doc: /* Return the height in millimeters of the the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

On \"multi-monitor\" setups this refers to the height in millimeters for
all physical monitors associated with TERMINAL.  To get information
for each physical monitor, use `display-monitor-attributes-list'.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);
  GdkDisplay *gdpy = dpyinfo->gdpy;
#if defined(GDK_VERSION_3_22) || defined(HAVE_GTK4)
#ifndef HAVE_GTK4
  GdkMonitor *gmon = gdk_display_get_monitor_at_point (gdpy, 0, 0);
#else
  GdkMonitor *gmon = gdk_display_get_monitor (gdpy, 0);
#endif
  return make_fixnum (gdk_monitor_get_height_mm (gmon));
#else
  return make_fixnum (
    gdk_screen_get_height_mm (gdk_display_get_default_screen (gdpy)));
#endif
}

DEFUN ("x-display-mm-width", Fx_display_mm_width, Sx_display_mm_width, 0, 1, 0,
       doc: /* Return the width in millimeters of the the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

On \"multi-monitor\" setups this refers to the width in millimeters for
all physical monitors associated with TERMINAL.  To get information
for each physical monitor, use `display-monitor-attributes-list'.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);
  GdkDisplay *gdpy = dpyinfo->gdpy;
#if defined(GDK_VERSION_3_22) || defined(HAVE_GTK4)
#ifndef HAVE_GTK4
  GdkMonitor *gmon = gdk_display_get_monitor_at_point (gdpy, 0, 0);
#else
  GdkMonitor *gmon = gdk_display_get_monitor (gdpy, 0);
#endif
  return make_fixnum (gdk_monitor_get_width_mm (gmon));
#else
  return make_fixnum (
    gdk_screen_get_width_mm (gdk_display_get_default_screen (gdpy)));
#endif
}

DEFUN ("x-display-backing-store", Fx_display_backing_store,
       Sx_display_backing_store, 0, 1, 0,
       doc: /* Return an indication of whether the the display TERMINAL does backing store.
The value may be `buffered', `retained', or `non-retained'.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return Qnil;
}

DEFUN ("x-display-visual-class", Fx_display_visual_class,
       Sx_display_visual_class, 0, 1, 0,
       doc: /* Return the visual class of the the display TERMINAL.
The value is one of the symbols `static-gray', `gray-scale',
`static-color', `pseudo-color', `true-color', or `direct-color'.

The optional argument TERMINAL specifies which display to ask about.
TERMINAL should a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

On PGTK, always return true-color.  */)
(Lisp_Object terminal) { return intern ("true-color"); }

DEFUN ("x-display-save-under", Fx_display_save_under,
       Sx_display_save_under, 0, 1, 0,
       doc: /* Return t if TERMINAL supports the save-under feature.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return Qnil;
}

DEFUN ("x-open-connection", Fx_open_connection, Sx_open_connection,
       1, 3, 0,
       doc: /* Open a connection to a display server.
DISPLAY is the name of the display to connect to.
Optional second arg XRM-STRING is a string of resources in xrdb format.
If the optional third arg MUST-SUCCEED is non-nil,
terminate Emacs if we can't open the connection.  */)
(Lisp_Object display, Lisp_Object resource_string, Lisp_Object must_succeed)
{
  struct pgtk_display_info *dpyinfo;

  if (NILP (display))
    display = build_string ("");

  CHECK_STRING (display);

  nxatoms_of_pgtkselect ();
  dpyinfo = pgtk_term_init (display, SSDATA (Vx_resource_name));
  if (dpyinfo == 0)
    {
      if (!NILP (must_succeed))
        fatal ("Display on %s not responding.\n", SSDATA (display));
      else
        error ("Display on %s not responding.\n", SSDATA (display));
    }

  return Qnil;
}

DEFUN ("x-close-connection", Fx_close_connection, Sx_close_connection,
       1, 1, 0,
       doc: /* Close the connection to TERMINAL's display server.
For TERMINAL, specify a terminal object, a frame or a display name (a
string).  If TERMINAL is nil, that stands for the selected frame's
terminal.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);

  if (dpyinfo->reference_count > 0)
    error ("Display still has frames on it");

  pgtk_delete_terminal (dpyinfo->terminal);

  return Qnil;
}

DEFUN ("x-display-list", Fx_display_list, Sx_display_list, 0, 0, 0, doc
       : /* Return the list of display names that Emacs has connections to.  */)
(void)
{
  Lisp_Object result = Qnil;
  struct pgtk_display_info *ndi;

  for (ndi = x_display_list; ndi; ndi = ndi->next)
    result = Fcons (XCAR (ndi->name_list_element), result);

  return result;
}

DEFUN ("pgtk-hide-others", Fpgtk_hide_others, Spgtk_hide_others, 0, 0, 0, doc
       : /* Hides all applications other than Emacs.  */)
(void)
{
  check_window_system (NULL);
  return Qnil;
}

DEFUN ("pgtk-hide-emacs", Fpgtk_hide_emacs, Spgtk_hide_emacs,
       1, 1, 0,
       doc: /* If ON is non-nil, the entire Emacs application is hidden.
Otherwise if Emacs is hidden, it is unhidden.
If ON is equal to `activate', Emacs is unhidden and becomes
the active application.  */)
(Lisp_Object on)
{
  check_window_system (NULL);
  return Qnil;
}

DEFUN ("pgtk-font-name", Fpgtk_font_name, Spgtk_font_name, 1, 1, 0,
       doc: /* Determine font PostScript or family name for font NAME.
NAME should be a string containing either the font name or an XLFD
font descriptor.  If string contains `fontset' and not
`fontset-startup', it is left alone. */)
(Lisp_Object name)
{
  char *nm;
  CHECK_STRING (name);
  nm = SSDATA (name);

  if (nm[0] != '-')
    return name;
  if (strstr (nm, "fontset") && !strstr (nm, "fontset-startup"))
    return name;

  char *str = pgtk_xlfd_to_fontname (SSDATA (name));
  name = build_string (str);
  xfree (str);
  return name;
}

/* ==========================================================================

    Miscellaneous functions not called through hooks

   ========================================================================== */

/* called from frame.c */
struct pgtk_display_info *
check_x_display_info (Lisp_Object frame)
{
  return check_pgtk_display_info (frame);
}

void
pgtk_set_scroll_bar_default_width (struct frame *f)
{
  int unit = FRAME_COLUMN_WIDTH (f);
  int minw =
#ifndef HAVE_GTK4
    xg_get_default_scrollbar_width (f);
#else
    egtk_get_default_scrollbar_width (f);
#endif
  /* A minimum width of 14 doesn't look good for toolkit scroll bars.  */
  FRAME_CONFIG_SCROLL_BAR_COLS (f) = (minw + unit - 1) / unit;
  FRAME_CONFIG_SCROLL_BAR_WIDTH (f) = minw;
}

void
pgtk_set_scroll_bar_default_height (struct frame *f)
{
  int height = FRAME_LINE_HEIGHT (f);
  int min_height =
#ifndef HAVE_GTK4
    xg_get_default_scrollbar_height (f);
#else
    egtk_get_default_scrollbar_height (f);
#endif
  /* A minimum height of 14 doesn't look good for toolkit scroll bars.  */
  FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) = min_height;
  FRAME_CONFIG_SCROLL_BAR_LINES (f) = (min_height + height - 1) / height;
}

/* terms impl this instead of x-get-resource directly */
const char *
pgtk_get_string_resource (XrmDatabase rdb, const char *name, const char *class)
{
  check_window_system (NULL);

  if (inhibit_x_resources)
    /* --quick was passed, so this is a no-op.  */
    return NULL;

  const char *res = pgtk_get_defaults_value (name);
  if (res == NULL)
    res = pgtk_get_defaults_value (class);

  if (res == NULL)
    return NULL;

  if (c_strncasecmp (res, "YES", 3) == 0)
    return "true";

  if (c_strncasecmp (res, "NO", 2) == 0)
    return "false";

  return res;
}

Lisp_Object
x_get_focus_frame (struct frame *frame)
{
  struct pgtk_display_info *dpyinfo = FRAME_DISPLAY_INFO (frame);
  Lisp_Object focus;

  if (!dpyinfo->x_focus_frame)
    return Qnil;

  XSETFRAME (focus, dpyinfo->x_focus_frame);
  return focus;
}

/* ==========================================================================

    Lisp definitions that, for whatever reason, we can't alias as 'ns-XXX'.

   ========================================================================== */

DEFUN ("xw-color-defined-p", Fxw_color_defined_p, Sxw_color_defined_p, 1, 2, 0,
       doc: /* Internal function called by `color-defined-p', which see.  */)
(Lisp_Object color, Lisp_Object frame)
{
  if (!NILP (frame))
    CHECK_FRAME (frame);
  Emacs_Color col;
  return (NILP (frame)
            ? pgtk_lisp_to_color (color, &col)
            : pgtk_lisp_to_color_with_frame (color, &col, XFRAME (frame)))
           ? Qnil
           : Qt;
}

DEFUN ("xw-color-values", Fxw_color_values, Sxw_color_values, 1, 2, 0,
       doc: /* Internal function called by `color-values', which see.  */)
(Lisp_Object color, Lisp_Object frame)
{
  Emacs_Color col;

  CHECK_STRING (color);
  if (!NILP (frame))
    CHECK_FRAME (frame);

  block_input ();

  if (NILP (frame)
      ? pgtk_lisp_to_color (color, &col)
      : pgtk_lisp_to_color_with_frame (color, &col, XFRAME (frame)))
    {
      unblock_input ();
      return Qnil;
    }

  unblock_input ();

  return list3i (col.red, col.green, col.blue);
}

DEFUN ("xw-display-color-p", Fxw_display_color_p, Sxw_display_color_p, 0, 1, 0,
       doc
       : /* Internal function called by `display-color-p', which see.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return Qt;
}

DEFUN ("x-display-grayscale-p", Fx_display_grayscale_p, Sx_display_grayscale_p,
       0, 1, 0,
       doc: /* Return t if the display supports shades of gray.
Note that color displays do support shades of gray.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal) { return Qnil; }

DEFUN ("x-display-pixel-width", Fx_display_pixel_width, Sx_display_pixel_width,
       0, 1, 0,
       doc: /* Return the width in pixels of the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

On \"multi-monitor\" setups this refers to the pixel width for all
physical monitors associated with TERMINAL.  To get information for
each physical monitor, use `display-monitor-attributes-list'.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);

  return make_fixnum (x_display_pixel_width (dpyinfo));
}

DEFUN ("x-display-pixel-height", Fx_display_pixel_height,
       Sx_display_pixel_height, 0, 1, 0,
       doc: /* Return the height in pixels of the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

On \"multi-monitor\" setups this refers to the pixel height for all
physical monitors associated with TERMINAL.  To get information for
each physical monitor, use `display-monitor-attributes-list'.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);

  return make_fixnum (x_display_pixel_height (dpyinfo));
}

DEFUN ("pgtk-display-monitor-attributes-list",
       Fpgtk_display_monitor_attributes_list,
       Spgtk_display_monitor_attributes_list,
       0, 1, 0,
       doc: /* Return a list of physical monitor attributes on the X display TERMINAL.

The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.

Internal use only, use `display-monitor-attributes-list' instead.  */)
(Lisp_Object terminal)
{
#if defined(GDK_VERSION_3_22) || HAVE_GTK4
  struct terminal *term = decode_live_terminal (terminal);
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);
  GdkDisplay *gdpy = dpyinfo->gdpy;
  GdkMonitor **gmons;
  int i, n_monitors, primary_index;
  struct MonitorInfo *monitors;
  Lisp_Object monitor_frames = Qnil;
  Lisp_Object frame = Qnil, rest = Qnil;
  Lisp_Object rv = Qnil;

  if (term->type != output_pgtk)
    return Qnil;

  n_monitors = gdk_display_get_n_monitors (gdpy);
  if (n_monitors == 0)
    return Qnil;

  gmons = xmalloc (sizeof *gmons * n_monitors);
  for (i = 0; i < n_monitors; i++)
    gmons[i] = gdk_display_get_monitor (gdpy, i);

  monitors = xzalloc (n_monitors * sizeof *monitors);
  for (i = 0; i < n_monitors; i++)
    {
      struct MonitorInfo *mon = &monitors[i];
      GdkMonitor *gmon = gmons[i];
      if (gmon != NULL)
        {
          GdkRectangle geom;
          gdk_monitor_get_geometry (gmon, &geom);
          mon->geom.x = geom.x;
          mon->geom.y = geom.y;
          mon->geom.width = geom.width;
          mon->geom.height = geom.height;

          gdk_monitor_get_workarea (gmon, &geom);
          mon->work.x = geom.x;
          mon->work.y = geom.y;
          mon->work.width = geom.width;
          mon->work.height = geom.height;

          mon->mm_width = gdk_monitor_get_width_mm (gmon);
          mon->mm_height = gdk_monitor_get_height_mm (gmon);

          mon->name = xstrdup (gdk_monitor_get_model (gmon));
        }
    }

  monitor_frames = Fmake_vector (make_fixnum (n_monitors), Qnil);
  FOR_EACH_FRAME (rest, frame)
  {
    struct frame *f = XFRAME (frame);

    if (FRAME_PGTK_P (f))
      {
        GtkWidget *widget = FRAME_GTK_WIDGET (f);
        GdkMonitor *gmon =
#ifdef HAVE_GTK4
          gdk_display_get_monitor_at_surface
#else
          gdk_display_get_monitor_at_window
#endif
          (gdpy,
#ifdef HAVE_GTK4
           EGTK_WIDGET_GET_WINDOW (widget)
#else
           gtk_widget_get_window (widget)
#endif
          );

        if (gmon != NULL)
          {
            for (i = 0; i < n_monitors; i++)
              {
                if (gmons[i] == gmon)
                  {
                    ASET (monitor_frames, i,
                          Fcons (frame, AREF (monitor_frames, i)));
                    break;
                  }
              }
          }
      }
  }

  primary_index = -1;
  for (i = 0; i < n_monitors; i++)
    {
      if (gmons[i] != NULL &&
#ifndef HAVE_GTK4
          gdk_monitor_is_primary (gmons[i])
#else
          false
#endif
      )
        {
          primary_index = i;
          break;
        }
    }

  rv = make_monitor_attribute_list (monitors, n_monitors, primary_index,
                                    monitor_frames, "Gdk");

  free_monitors (monitors, n_monitors);
  xfree (gmons);

  return rv;
#else
  return Qnil;
#endif
}

DEFUN ("x-display-planes", Fx_display_planes, Sx_display_planes,
       0, 1, 0,
       doc: /* Return the number of bitplanes of the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  check_pgtk_display_info (terminal);
  return make_fixnum (32);
}

DEFUN ("x-display-color-cells", Fx_display_color_cells, Sx_display_color_cells,
       0, 1, 0,
       doc: /* Returns the number of color cells of the display TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);
  /* We force 24+ bit depths to 24-bit to prevent an overflow.  */
  return make_fixnum (1 << min (dpyinfo->n_planes, 24));
}

/***********************************************************************
                                Tool tips
 ***********************************************************************/

/* The frame of a currently visible tooltip.  */

Lisp_Object tip_frame;

/* If non-nil, a timer started that hides the last tooltip when it
   fires.  */

static Lisp_Object tip_timer;

/* Compute where to display tip frame F.  PARMS is the list of frame
   parameters for F.  DX and DY are specified offsets from the current
   location of the mouse.  WIDTH and HEIGHT are the width and height
   of the tooltip.  Return coordinates relative to the root window of
   the display in *ROOT_X, and *ROOT_Y.  */

static void
compute_tip_xy (struct frame *f, Lisp_Object parms, Lisp_Object dx,
                Lisp_Object dy, int width, int height,
#ifndef HAVE_GTK4
                int *root_x, int *root_y
#else
                double *root_x, double *root_y
#endif
)
{
  Lisp_Object left, top, right, bottom;
  int min_x, min_y, max_x, max_y = -1;

  /* User-specified position?  */
  left = Fcdr (Fassq (Qleft, parms));
  top = Fcdr (Fassq (Qtop, parms));
  right = Fcdr (Fassq (Qright, parms));
  bottom = Fcdr (Fassq (Qbottom, parms));

  /* Move the tooltip window where the mouse pointer is.  Resize and
     show it.  */
  if ((!INTEGERP (left) && !INTEGERP (right))
      || (!INTEGERP (top) && !INTEGERP (bottom)))
    {
      Lisp_Object frame, attributes, monitor, geometry;
#ifdef HAVE_GTK3
#if defined(GDK_VERSION_3_20) || defined(HAVE_GTK4)
      GdkSeat *seat
        = gdk_display_get_default_seat (FRAME_DISPLAY_INFO (f)->gdpy);
      GdkDevice *dev = gdk_seat_get_pointer (seat);
#else
      GdkDeviceManager *man
        = gdk_display_get_device_manager (FRAME_DISPLAY_INFO (f)->gdpy);
      GdkDevice *dev = gdk_device_manager_get_client_pointer (man);
#endif
#endif /* HAVE_GTK3 */
#ifndef HAVE_GTK4
      GdkScreen *scr;
#endif
      block_input ();
#ifdef HAVE_GTK3
#ifndef HAVE_GTK4
      gdk_device_get_position (dev, &scr, root_x, root_y);
#else
      gdk_device_get_surface_at_position (dev, root_x, root_y);
#endif
#else
      gdk_display_get_pointer (FRAME_DISPLAY_INFO (f)->gdpy, &scr, root_x,
                               root_y, NULL);
#endif
      unblock_input ();
      XSETFRAME (frame, f);
      attributes = Fpgtk_display_monitor_attributes_list (frame);

      /* Try to determine the monitor where the mouse pointer is and
         its geometry.  See bug#22549.  */
      while (CONSP (attributes))
        {
          monitor = XCAR (attributes);
          geometry = Fassq (Qgeometry, monitor);
          if (CONSP (geometry))
            {
              min_x = XFIXNUM (Fnth (make_fixnum (1), geometry));
              min_y = XFIXNUM (Fnth (make_fixnum (2), geometry));
              max_x = min_x + XFIXNUM (Fnth (make_fixnum (3), geometry));
              max_y = min_y + XFIXNUM (Fnth (make_fixnum (4), geometry));
              if (min_x <= *root_x && *root_x < max_x && min_y <= *root_y
                  && *root_y < max_y)
                {
                  break;
                }
              max_y = -1;
            }

          attributes = XCDR (attributes);
        }
    }

  /* It was not possible to determine the monitor's geometry, so we
     assign some sane defaults here: */
  if (max_y < 0)
    {
      min_x = 0;
      min_y = 0;
      max_x = x_display_pixel_width (FRAME_DISPLAY_INFO (f));
      max_y = x_display_pixel_height (FRAME_DISPLAY_INFO (f));
    }
  if (INTEGERP (top))
    *root_y = XFIXNUM (top);
  else if (INTEGERP (bottom))
    *root_y = XFIXNUM (bottom) - height;
  else if (*root_y + XFIXNUM (dy) <= min_y)
    *root_y = min_y; /* Can happen for negative dy */
  else if (*root_y + XFIXNUM (dy) + height <= max_y)
    /* It fits below the pointer */
    *root_y += XFIXNUM (dy);
  else if (height + XFIXNUM (dy) + min_y <= *root_y)
    /* It fits above the pointer.  */
    *root_y -= height + XFIXNUM (dy);
  else
    /* Put it on the top.  */
    *root_y = min_y;
  if (INTEGERP (left))
    *root_x = XFIXNUM (left);
  else if (INTEGERP (right))
    *root_x = XFIXNUM (right) - width;
  else if (*root_x + XFIXNUM (dx) <= min_x)
    *root_x = 0; /* Can happen for negative dx */
  else if (*root_x + XFIXNUM (dx) + width <= max_x)
    /* It fits to the right of the pointer.  */
    *root_x += XFIXNUM (dx);
  else if (width + XFIXNUM (dx) + min_x <= *root_x)
    /* It fits to the left of the pointer.  */
    *root_x -= width + XFIXNUM (dx);
#ifndef HAVE_GTK4
  else
    /* Put it left justified on the screen -- it ought to fit that way.  */
    *root_x = min_x;
#endif
}

/* Hide tooltip.  Delete its frame if DELETE is true.  */
static Lisp_Object
x_hide_tip (bool delete)
{
  if (!NILP (tip_timer))
    {
      call1 (Qcancel_timer, tip_timer);
      tip_timer = Qnil;
    }

  if (NILP (tip_frame)
      || (!delete &&FRAMEP (tip_frame)
          && !FRAME_VISIBLE_P (XFRAME (tip_frame))))
    return Qnil;
  else
    {
      ptrdiff_t count;
      Lisp_Object was_open = Qnil;

      count = SPECPDL_INDEX ();
      specbind (Qinhibit_redisplay, Qt);
      specbind (Qinhibit_quit, Qt);

      {
        /* When using system tooltip, tip_frame is the Emacs frame on
           which the tip is shown.  */
        struct frame *f = XFRAME (tip_frame);

#ifndef HAVE_GTK4
        if (FRAME_LIVE_P (f) && xg_hide_tooltip (f))
#else
        if (FRAME_LIVE_P (f) && egtk_hide_tooltip (f))
#endif
          {
            tip_frame = Qnil;
            was_open = Qt;
          }
      }

      if (FRAMEP (tip_frame))
        {
          if (delete)
            {
              delete_frame (tip_frame, Qnil);
              tip_frame = Qnil;
            }
          else
            pgtk_make_frame_invisible (XFRAME (tip_frame));

          was_open = Qt;
        }
      else
        tip_frame = Qnil;

      return unbind_to (count, was_open);
    }
}

DEFUN ("x-show-tip", Fx_show_tip, Sx_show_tip, 1, 6, 0,
       doc: /* Show STRING in a "tooltip" window on frame FRAME.
A tooltip window is a small X window displaying a string.

This is an internal function; Lisp code should call `tooltip-show'.

FRAME nil or omitted means use the selected frame.

PARMS is an optional list of frame parameters which can be used to
change the tooltip's appearance.

Automatically hide the tooltip after TIMEOUT seconds.  TIMEOUT nil
means use the default timeout of 5 seconds.

If the list of frame parameters PARMS contains a `left' parameter,
display the tooltip at that x-position.  If the list of frame parameters
PARMS contains no `left' but a `right' parameter, display the tooltip
right-adjusted at that x-position. Otherwise display it at the
x-position of the mouse, with offset DX added (default is 5 if DX isn't
specified).

Likewise for the y-position: If a `top' frame parameter is specified, it
determines the position of the upper edge of the tooltip window.  If a
`bottom' parameter but no `top' frame parameter is specified, it
determines the position of the lower edge of the tooltip window.
Otherwise display the tooltip window at the y-position of the mouse,
with offset DY added (default is -10).

A tooltip's maximum size is specified by `x-max-tooltip-size'.
Text larger than the specified size is clipped.  */)
(Lisp_Object string, Lisp_Object frame, Lisp_Object parms, Lisp_Object timeout,
 Lisp_Object dx, Lisp_Object dy)
{
  struct frame *f;
#ifndef HAVE_GTK4
  int
#else
  double
#endif
    root_x,
    root_y;
  int width, height;
  ptrdiff_t count = SPECPDL_INDEX ();

  specbind (Qinhibit_redisplay, Qt);

  CHECK_STRING (string);
  if (SCHARS (string) == 0)
    string = make_unibyte_string (" ", 1);

  f = decode_window_system_frame (frame);
  if (NILP (timeout))
    timeout = make_fixnum (5);
  else
    CHECK_FIXNAT (timeout);

  if (NILP (dx))
    dx = make_fixnum (5);
  else
    CHECK_NUMBER (dx);

  if (NILP (dy))
    dy = make_fixnum (-10);
  else
    CHECK_NUMBER (dy);

  {
    bool ok;

    /* Hide a previous tip, if any.  */
    Fx_hide_tip ();

    block_input ();
#ifdef HAVE_GTK4
    ok = egtk_prepare_tooltip (f, string, &width, &height);
#else
    ok = xg_prepare_tooltip (f, string, &width, &height);
#endif
    if (ok)
      {
        compute_tip_xy (f, parms, dx, dy, width, height, &root_x, &root_y);
#ifdef HAVE_GTK4
        egtk_show_tooltip (f, round (root_x)
                              - pgtk_get_window_decoration_width (f),
                            round (root_y)
			      - pgtk_get_window_inside_decor_height (f));
#else
        xg_show_tooltip (f, root_x, root_y);
#endif
        /* This is used in Fx_hide_tip.  */
        XSETFRAME (tip_frame, f);
      }
    unblock_input ();
    if (ok)
      goto start_timer;
  }

start_timer:
  /* Let the tip disappear after timeout seconds.  */
  tip_timer
    = call3 (intern ("run-at-time"), timeout, Qnil, intern ("x-hide-tip"));

  return unbind_to (count, Qnil);
}

DEFUN ("x-hide-tip", Fx_hide_tip, Sx_hide_tip, 0, 0, 0,
       doc: /* Hide the current tooltip window, if there is any.
Value is t if tooltip was open, nil otherwise.  */)
(void) { return x_hide_tip (!tooltip_reuse_hidden_frame); }

/* Return geometric attributes of FRAME.  According to the value of
   ATTRIBUTES return the outer edges of FRAME (Qouter_edges), the inner
   edges of FRAME, the root window edges of frame (Qroot_edges).  Any
   other value means to return the geometry as returned by
   Fx_frame_geometry.  */
static Lisp_Object
frame_geometry (Lisp_Object frame, Lisp_Object attribute)
{
  struct frame *f = decode_live_frame (frame);
  Lisp_Object fullscreen_symbol = Fframe_parameter (frame, Qfullscreen);
  bool fullscreen = (EQ (fullscreen_symbol, Qfullboth)
                     || EQ (fullscreen_symbol, Qfullscreen));
  int border = fullscreen ? 0 : f->border_width;
  int title_height = 0;
  int native_width = FRAME_PIXEL_WIDTH (f);
  int native_height = FRAME_PIXEL_HEIGHT (f);
  int outer_width = native_width + 2 * border;
  int outer_height = native_height + 2 * border + title_height;
  int native_left = f->left_pos + border;
  int native_top = f->top_pos + border + title_height;
  int native_right = f->left_pos + outer_width - border;
  int native_bottom = f->top_pos + outer_height - border;
  int internal_border_width = FRAME_INTERNAL_BORDER_WIDTH (f);
  int tab_bar_height = 0, tab_bar_width = 0;
  int tool_bar_height = FRAME_TOOLBAR_HEIGHT (f);
  int tool_bar_width
    = (tool_bar_height ? outer_width - 2 * internal_border_width : 0);

  tab_bar_height = FRAME_TAB_BAR_HEIGHT (f);
  tab_bar_width
    = (tab_bar_height ? native_width - 2 * internal_border_width : 0);
  // inner_top += tab_bar_height;

  /* Construct list.  */
  if (EQ (attribute, Qouter_edges))
    return list4 (make_fixnum (f->left_pos), make_fixnum (f->top_pos),
                  make_fixnum (f->left_pos + outer_width),
                  make_fixnum (f->top_pos + outer_height));
  else if (EQ (attribute, Qnative_edges))
    return list4 (make_fixnum (native_left), make_fixnum (native_top),
                  make_fixnum (native_right), make_fixnum (native_bottom));
  else if (EQ (attribute, Qinner_edges))
    return list4 (make_fixnum (native_left + internal_border_width),
                  make_fixnum (native_top + tool_bar_height
                               + internal_border_width),
                  make_fixnum (native_right - internal_border_width),
                  make_fixnum (native_bottom - internal_border_width));
  else
    return list (Fcons (Qouter_position, Fcons (make_fixnum (f->left_pos),
                                                make_fixnum (f->top_pos))),
                 Fcons (Qouter_size, Fcons (make_fixnum (outer_width),
                                            make_fixnum (outer_height))),
                 Fcons (Qexternal_border_size,
                        (fullscreen ? Fcons (make_fixnum (0), make_fixnum (0))
                                    : Fcons (make_fixnum (border),
                                             make_fixnum (border)))),
                 Fcons (Qtitle_bar_size,
                        Fcons (make_fixnum (0), make_fixnum (title_height))),
                 Fcons (Qmenu_bar_external, Qnil),
                 Fcons (Qmenu_bar_size,
                        Fcons (make_fixnum (0), make_fixnum (0))),
                 Fcons (Qtab_bar_size, Fcons (make_fixnum (tab_bar_width),
                                              make_fixnum (tab_bar_height))),
                 Fcons (Qtool_bar_external,
                        FRAME_EXTERNAL_TOOL_BAR (f) ? Qt : Qnil),
                 Fcons (Qtool_bar_position, FRAME_TOOL_BAR_POSITION (f)),
                 Fcons (Qtool_bar_size, Fcons (make_fixnum (tool_bar_width),
                                               make_fixnum (tool_bar_height))),
                 Fcons (Qinternal_border_width,
                        make_fixnum (internal_border_width)));
}

DEFUN ("pgtk-frame-geometry", Fpgtk_frame_geometry, Spgtk_frame_geometry, 0, 1, 0,
       doc: /* Return geometric attributes of FRAME.
FRAME must be a live frame and defaults to the selected one.  The return
value is an association list of the attributes listed below.  All height
and width values are in pixels.

`outer-position' is a cons of the outer left and top edges of FRAME
  relative to the origin - the position (0, 0) - of FRAME's display.

`outer-size' is a cons of the outer width and height of FRAME.  The
  outer size includes the title bar and the external borders as well as
  any menu and/or tool bar of frame.

`external-border-size' is a cons of the horizontal and vertical width of
  FRAME's external borders as supplied by the window manager.

`title-bar-size' is a cons of the width and height of the title bar of
  FRAME as supplied by the window manager.  If both of them are zero,
  FRAME has no title bar.  If only the width is zero, Emacs was not
  able to retrieve the width information.

`menu-bar-external', if non-nil, means the menu bar is external (never
  included in the inner edges of FRAME).

`menu-bar-size' is a cons of the width and height of the menu bar of
  FRAME.

`tool-bar-external', if non-nil, means the tool bar is external (never
  included in the inner edges of FRAME).

`tool-bar-position' tells on which side the tool bar on FRAME is and can
  be one of `left', `top', `right' or `bottom'.  If this is nil, FRAME
  has no tool bar.

`tool-bar-size' is a cons of the width and height of the tool bar of
  FRAME.

`internal-border-width' is the width of the internal border of
  FRAME.  */)
(Lisp_Object frame) { return frame_geometry (frame, Qnil); }

DEFUN ("pgtk-frame-edges", Fpgtk_frame_edges, Spgtk_frame_edges, 0, 2, 0,
       doc: /* Return edge coordinates of FRAME.
FRAME must be a live frame and defaults to the selected one.  The return
value is a list of the form (LEFT, TOP, RIGHT, BOTTOM).  All values are
in pixels relative to the origin - the position (0, 0) - of FRAME's
display.

If optional argument TYPE is the symbol `outer-edges', return the outer
edges of FRAME.  The outer edges comprise the decorations of the window
manager (like the title bar or external borders) as well as any external
menu or tool bar of FRAME.  If optional argument TYPE is the symbol
`native-edges' or nil, return the native edges of FRAME.  The native
edges exclude the decorations of the window manager and any external
menu or tool bar of FRAME.  If TYPE is the symbol `inner-edges', return
the inner edges of FRAME.  These edges exclude title bar, any borders,
menu bar or tool bar of FRAME.  */)
(Lisp_Object frame, Lisp_Object type)
{
  return frame_geometry (frame,
                         ((EQ (type, Qouter_edges) || EQ (type, Qinner_edges))
                            ? type
                            : Qnative_edges));
}

DEFUN ("pgtk-set-mouse-absolute-pixel-position",
       Fpgtk_set_mouse_absolute_pixel_position,
       Spgtk_set_mouse_absolute_pixel_position, 2, 2, 0,
       doc: /* Move mouse pointer to absolute pixel position (X, Y).
The coordinates X and Y are interpreted in pixels relative to a position
\(0, 0) of the selected frame's display.  */)
(Lisp_Object x, Lisp_Object y)
{
#ifndef HAVE_GTK4
  struct frame *f = SELECTED_FRAME ();
  GtkWidget *widget = FRAME_GTK_OUTER_WIDGET (f);
#ifdef HAVE_GTK4
  GdkDisplay *gdpy = gtk_widget_get_display (widget);
#else
  GdkWindow *window = gtk_widget_get_window (widget);
  GdkDisplay *gdpy = gdk_window_get_display (window);
#endif
#ifndef HAVE_GTK4
  GdkScreen *gscr = gdk_window_get_screen (window);
#endif
#ifdef HAVE_GTK3
#if defined(GDK_VERSION_3_22) || HAVE_GTK4
  GdkSeat *seat = gdk_display_get_default_seat (gdpy);
  GdkDevice *device = gdk_seat_get_pointer (seat);
#else
  GdkDeviceManager *mgr = gdk_display_get_device_manager (gdpy);
  GdkDevice *device = gdk_device_manager_get_client_pointer (mgr);
#endif

  PGTK_TRACE ("pgtk-set-mouse-absolute-pixel-position:");
  gdk_device_warp (device, gscr, XFIXNUM (x),
                   XFIXNUM (y)); /* No effect on wayland. */
#endif
  gdk_display_warp_pointer (gdpy, gscr, XFIXNUM (x), XFIXNUM (y));
#endif
  return Qnil;
}

DEFUN ("pgtk-mouse-absolute-pixel-position",
       Fpgtk_mouse_absolute_pixel_position,
       Spgtk_mouse_absolute_pixel_position, 0, 0, 0,
       doc: /* Return absolute position of mouse cursor in pixels.
The position is returned as a cons cell (X . Y) of the
coordinates of the mouse cursor position in pixels relative to a
position (0, 0) of the selected frame's terminal. */)
(void)
{
  struct frame *f = SELECTED_FRAME ();
  GtkWidget *widget = FRAME_GTK_OUTER_WIDGET (f);
#ifndef HAVE_GTK4
  GdkWindow *window = gtk_widget_get_window (widget);
#else
  GdkSurface *window = EGTK_WIDGET_GET_WINDOW (widget);
#endif
#ifndef HAVE_GTK4
  GdkDisplay *gdpy = gdk_window_get_display (window);
#else
  GdkDisplay *gdpy = gdk_surface_get_display (window);
#endif
#ifndef HAVE_GTK4
  GdkScreen *gscr;
#endif
#ifdef HAVE_GTK3
#if defined(GDK_VERSION_3_20) || HAVE_GTK4
  GdkSeat *seat = gdk_display_get_default_seat (gdpy);
  GdkDevice *device = gdk_seat_get_pointer (seat);
#else
  GdkDeviceManager *mgr = gdk_display_get_device_manager (gdpy);
  GdkDevice *device = gdk_device_manager_get_client_pointer (mgr);
#endif
#ifndef HAVE_GTK4
  int
#else
  double
#endif
    x
    = 0,
    y = 0;
#ifndef HAVE_GTK4
  gdk_device_get_position (device, &gscr, &x, &y); /* can't get on wayland? */
#else
  gdk_device_get_surface_at_position (device, &x, &y);
  x -= calculate_child_frame_distance_x (f);
  y -= calculate_child_frame_distance_y (f);
#endif
#else
  int x = 0, y = 0;
  gdk_display_get_pointer (gdpy, &gscr, &x, &y, NULL);
#endif
#ifndef HAVE_GTK4
  return Fcons (make_fixnum (x), make_fixnum (y));
#else
  return Fcons (make_fixnum (round (x)), make_fixnum (round (y)));
#endif
}

void
pgtk_m_px_pos (struct frame *f, double *_x, double *_y)
{
  GtkWidget *widget = FRAME_GTK_OUTER_WIDGET (f);
#ifndef HAVE_GTK4
  GdkWindow *window = gtk_widget_get_window (widget);
#else
  GdkSurface *window = EGTK_WIDGET_GET_WINDOW (widget);
#endif
#ifndef HAVE_GTK4
  GdkDisplay *gdpy = gdk_window_get_display (window);
#else
  GdkDisplay *gdpy = gdk_surface_get_display (window);
#endif
#ifndef HAVE_GTK4
  GdkScreen *gscr;
#endif
#ifdef HAVE_GTK3
#if defined(GDK_VERSION_3_20) || HAVE_GTK4
  GdkSeat *seat = gdk_display_get_default_seat (gdpy);
  GdkDevice *device = gdk_seat_get_pointer (seat);
#else
  GdkDeviceManager *mgr = gdk_display_get_device_manager (gdpy);
  GdkDevice *device = gdk_device_manager_get_client_pointer (mgr);
#endif
#ifndef HAVE_GTK4
  int
#else
  double
#endif
    x
    = 0,
    y = 0;
#ifndef HAVE_GTK4
  gdk_device_get_position (device, &gscr, &x, &y); /* can't get on wayland? */
#else
  gdk_device_get_surface_at_position (device, &x, &y);
  x -= calculate_child_frame_distance_x (f);
  y -= calculate_child_frame_distance_y (f);
#endif
#else
  int x = 0, y = 0;
  gdk_display_get_pointer (gdpy, &gscr, &x, &y, NULL);
#endif
  *_x = x;
  *_y = y;
}

DEFUN ("pgtk-page-setup-dialog", Fpgtk_page_setup_dialog, Spgtk_page_setup_dialog, 0, 0, 0,
       doc: /* Pop up a page setup dialog.
The current page setup can be obtained using `x-get-page-setup'.  */)
(void)
{
  block_input ();
#ifdef HAVE_GTK4
  egtk_page_setup_dialog ();
#else
  xg_page_setup_dialog ();
#endif
  unblock_input ();

  return Qnil;
}

DEFUN ("pgtk-get-page-setup", Fpgtk_get_page_setup, Spgtk_get_page_setup, 0, 0, 0,
       doc: /* Return the value of the current page setup.
The return value is an alist containing the following keys:

  orientation: page orientation (symbol `portrait', `landscape',
	`reverse-portrait', or `reverse-landscape').
  width, height: page width/height in points not including margins.
  left-margin, right-margin, top-margin, bottom-margin: print margins,
	which is the parts of the page that the printer cannot print
	on, in points.

The paper width can be obtained as the sum of width, left-margin, and
right-margin values if the page orientation is `portrait' or
`reverse-portrait'.  Otherwise, it is the sum of width, top-margin,
and bottom-margin values.  Likewise, the paper height is the sum of
height, top-margin, and bottom-margin values if the page orientation
is `portrait' or `reverse-portrait'.  Otherwise, it is the sum of
height, left-margin, and right-margin values.  */)
(void)
{
  Lisp_Object result;

  block_input ();
#ifdef HAVE_GTK4
  result = egtk_get_page_setup ();
#else
  result = xg_get_page_setup ();
#endif
  unblock_input ();

  return result;
}

DEFUN ("pgtk-print-frames-dialog", Fpgtk_print_frames_dialog, Spgtk_print_frames_dialog, 0, 1, "",
       doc: /* Pop up a print dialog to print the current contents of FRAMES.
FRAMES should be nil (the selected frame), a frame, or a list of
frames (each of which corresponds to one page).  Each frame should be
visible.  */)
(Lisp_Object frames)
{
  Lisp_Object rest, tmp;
  int count;

  if (!CONSP (frames))
    frames = list1 (frames);

  tmp = Qnil;
  for (rest = frames; CONSP (rest); rest = XCDR (rest))
    {
      struct frame *f = decode_window_system_frame (XCAR (rest));
      Lisp_Object frame;

      XSETFRAME (frame, f);
      if (!FRAME_VISIBLE_P (f))
        error ("Frames to be printed must be visible.");
      tmp = Fcons (frame, tmp);
    }
  frames = Fnreverse (tmp);

  /* Make sure the current matrices are up-to-date.  */
  count = SPECPDL_INDEX ();
  specbind (Qredisplay_dont_pause, Qt);
  redisplay_preserve_echo_area (32);
  unbind_to (count, Qnil);

  block_input ();
#ifndef HAVE_GTK4
  xg_print_frames_dialog (frames);
#else
  egtk_print_frames_dialog (frames);
#endif

  unblock_input ();

  return Qnil;
}

#ifdef HAVE_GTK3
static GtkWindow *
locate_nonchild_window (struct frame *child)
{
  while (FRAME_PARENT_FRAME (child))
    child = FRAME_PARENT_FRAME (child);
  return GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (child));
}
#endif


#ifdef HAVE_GTK3
DEFUN ("pgtk-color-dialog", Fpgtk_color_dialog, Spgtk_color_dialog, 0, 4, 0,
       doc: /* Display a window-system color picker dialog on FRAME,
or on the selected frame if FRAME is nil. A hex string containing the
selected (A)RGB color will be returned, or nil if no color was selected.
The title of the dialog will be set to PROMPT, or "Pick color" if
PROMPT is nil. The color string is an hexedecimal RGB color, or an ARGB
color if USE-ALPHA is not nil. PALETTE_ITEMS is an alist containing a pair of
(symbol . (r g b a)). */
       attributes: const)
  (Lisp_Object frame, Lisp_Object prompt, Lisp_Object use_alpha, Lisp_Object palette_items)
{
  if (NILP (frame))
    frame = Fselected_frame ();
  CHECK_LIVE_FRAME (frame);
  if (!FRAME_PGTK_P (XFRAME (frame)))
    error ("Color picker dialogs can only be displayed on GTK frames.");
  GtkColorChooserDialog *ccd = GTK_COLOR_CHOOSER_DIALOG
    (gtk_color_chooser_dialog_new (NILP (prompt) ? "Pick color" :
				   SSDATA (ENCODE_UTF_8 (prompt)),
				   locate_nonchild_window (XFRAME (frame))));
#if GTK_CHECK_VERSION (3, 22, 0)
  GtkContainer *vbox_1 = GTK_CONTAINER (gtk_bin_get_child (GTK_BIN (ccd)));
  GList *l = gtk_container_get_children (vbox_1);
  GtkColorChooserWidget *widget = l->data;
  g_object_ref (widget);
  GtkScrolledWindow *window =
    GTK_SCROLLED_WINDOW (gtk_scrolled_window_new (NULL, NULL));
  GtkViewport *vp = GTK_VIEWPORT (gtk_viewport_new (NULL, NULL));
  gtk_scrolled_window_set_max_content_height (window, 800);
  gtk_scrolled_window_set_propagate_natural_width (window, true);
  gtk_scrolled_window_set_propagate_natural_height (window, true);
  gtk_container_remove (vbox_1, GTK_WIDGET (widget));
  gtk_container_add (GTK_CONTAINER (vp), GTK_WIDGET (widget));
  gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (vp));
  gtk_container_add (GTK_CONTAINER (vbox_1), GTK_WIDGET (window));
#endif
#ifndef HAVE_GTK4
  gtk_widget_show_all (GTK_WIDGET (window));
#endif
  GdkRGBA *amtz = NULL;
  if (!NILP (palette_items))
    {
      size_t amt = 0;
      amtz = xmalloc (XFIXNUM (Flength (palette_items)) * sizeof (GdkRGBA));
      GdkRGBA *cur = amtz;
      for (; !NILP (palette_items); palette_items = XCDR (palette_items))
	{
	  eassert (amtz);
	  ((char *) amtz)[amt * sizeof (GdkRGBA)] = '\0';
	  CHECK_CONS (XCAR (palette_items));
	  Lisp_Object symbol = XCAR (XCAR (palette_items));
	  CHECK_SYMBOL (symbol);
	  Lisp_Object r = Fcar (XCDR (XCAR (palette_items)));
	  Lisp_Object g = Fcar (Fcdr (XCDR (XCAR (palette_items))));
	  Lisp_Object b = Fcar (Fcdr (Fcdr (XCDR (XCAR (palette_items)))));
	  Lisp_Object a = Fcar (Fcdr (Fcdr (Fcdr (XCDR (XCAR (palette_items))))));
	  if (NILP (a))
	    a = make_float (255.00);
	  CHECK_NUMBER (r);
	  CHECK_NUMBER (g);
	  CHECK_NUMBER (b);
	  CHECK_NUMBER (a);

	  GdkRGBA *grgba = cur++;
	  grgba->alpha = XFLOATINT (a);
	  grgba->blue = XFLOATINT (b);
	  grgba->green = XFLOATINT (g);
	  grgba->red = XFLOATINT (r);

	  ++amt;
	}
      gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (ccd),
				     GTK_ORIENTATION_HORIZONTAL,
				     9, amt, amtz);
    }

  gtk_widget_queue_allocate (GTK_WIDGET (vp));
  if (gtk_dialog_run (GTK_DIALOG (ccd)) != GTK_RESPONSE_OK)
    {
      gtk_widget_destroy (GTK_WIDGET (ccd));
      if (amtz)
	xfree (amtz);
      return Qnil;
    }
  GdkRGBA *rgba = g_malloc (sizeof (GdkRGBA));
  gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (ccd), !NILP (use_alpha));
  gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (ccd), rgba);
  gchar *str = g_malloc (NILP (use_alpha) ?
			 sizeof ("#FFFFFF") :
			 sizeof ("#FFFFFFFF"));
#pragma GCC diagnostic ignored "-Wformat-overflow"
  if (NILP (use_alpha))
    sprintf (str,
	     "#%02x%02x%02x",
	     (unsigned short) round (rgba->red * 255),
	     (unsigned short) round (rgba->green * 255),
	     (unsigned short) round (rgba->blue * 255));
  else
    sprintf (str,
	     "#%02x%02x%02x%02x",
	     (unsigned short) round (rgba->alpha * 255),
	     (unsigned short) round (rgba->red * 255),
	     (unsigned short) round (rgba->green * 255),
	     (unsigned short) round (rgba->blue * 255));
#pragma GCC diagnostic push
  g_free (rgba);
  Lisp_Object strz = build_string (str);
  gtk_widget_destroy (GTK_WIDGET (ccd));
  g_free (str);
  if (amtz)
    xfree (amtz);
  return strz;
}
#endif

#ifdef HAVE_GTK4
DEFUN ("pgtk-show-selection-options", Fpgtk_show_selection_options, Spgtk_show_selection_options,
       1, 1, 0, doc: /* Display the touchscreen selection options popover on FRAME. */)
  (Lisp_Object frame)
{
  CHECK_LIVE_FRAME (frame);
  if (!FRAME_PGTK_P (XFRAME (frame)))
    error ("Not a pgtk frame.");
  emacs_resizable_drawing_area_show_selection_options
    ((gpointer) FRAME_GTK_WIDGET (XFRAME (frame)));
  return Qnil;
}
#endif

DEFUN ("x-file-dialog", Fx_file_dialog, Sx_file_dialog, 2, 5, 0,
       doc: /* Read file name, prompting with PROMPT in directory DIR.
Use a file selection dialog.  Select DEFAULT-FILENAME in the dialog's file
selection box, if specified.  If MUSTMATCH is non-nil, the returned file
or directory must exist.

This function is defined only on PGTK, NS, MS Windows, and X Windows with the
Motif or Gtk toolkits.  With the Motif toolkit, ONLY-DIR-P is ignored.
Otherwise, if ONLY-DIR-P is non-nil, the user can select only directories.
On MS Windows 7 and later, the file selection dialog "remembers" the last
directory where the user selected a file, and will open that directory
instead of DIR on subsequent invocations of this function with the same
value of DIR as in previous invocations; this is standard MS Windows behavior.  */)
(Lisp_Object prompt, Lisp_Object dir, Lisp_Object default_filename,
 Lisp_Object mustmatch, Lisp_Object only_dir_p)
{
  struct frame *f = SELECTED_FRAME ();
  char *fn;
  Lisp_Object file = Qnil;
  Lisp_Object decoded_file;
  ptrdiff_t count = SPECPDL_INDEX ();
  char *cdef_file;

  check_window_system (f);

  CHECK_STRING (prompt);
  CHECK_STRING (dir);

  /* Prevent redisplay.  */
  specbind (Qinhibit_redisplay, Qt);
#if 0
  record_unwind_protect_void (clean_up_dialog);
#endif

  block_input ();

  if (STRINGP (default_filename))
    cdef_file = SSDATA (default_filename);
  else
    cdef_file = SSDATA (dir);
#ifndef HAVE_GTK4
  fn = xg_get_file_name (f, SSDATA (prompt), cdef_file, !NILP (mustmatch),
                         !NILP (only_dir_p));
#else
  fn = egtk_get_file_name (f, SSDATA (prompt), cdef_file, !NILP (mustmatch),
			   !NILP (only_dir_p));
#endif

  if (fn)
    {
      file = build_string (fn);
#ifndef HAVE_GTK4
      xfree (fn);
#else
      g_free (fn);
#endif
    }

  unblock_input ();

  /* Make "Cancel" equivalent to C-g.  */
  if (NILP (file))
    quit ();

  decoded_file = DECODE_FILE (file);

  return unbind_to (count, decoded_file);
}

#ifdef HAVE_GTK4
/* We implement most of this in C code, so
   GC doesn't go crazy when this is called. */
void
pgtk_vpixoffset_scroll (int pixels, struct window *window)
{
  pixels += 1;
  int vs_begin = 0;
  int vs_stop = pixels;
  while (vs_begin != vs_stop)
    {
      int old_vs = window->vpixoffset;
      if (window->vpixoffset < 0 && window->vpixoffset < old_vs)
	adjust_frame_glyphs (XFRAME (window->frame));
      if (vs_begin >= 0)
	{
	  window->vpixoffset -= vs_begin;
	  Lisp_Object window_;
	  XSETWINDOW (window_, window);
	  Fset_window_point (window_,
			     make_fixnum
			     ((MATRIX_FIRST_TEXT_ROW
			       (window->current_matrix) + 2)->start.pos.charpos));
	}
      else
	{
          redisplay ();
          int specbind_ = SPECPDL_INDEX ();
          record_unwind_protect_excursion ();
          Fgoto_char (Fwindow_start (Qnil));
          ptrdiff_t res;
          Lisp_Object window_;
          XSETWINDOW (window_, window);
          if (!NILP (Fbobp ()))
            {
              res = BEGV;
            }
          else
            {
              if (MATRIX_FIRST_TEXT_ROW (window->current_matrix)->y >= 0)
                {
                  int specindex_b = SPECPDL_INDEX ();
                  Lisp_Object symb = intern_c_string ("line-move-visual");
                  Fset_window_point (window_, Fwindow_start (Qnil));
                  Fvertical_motion (make_fixnum (-1), Qnil, Qnil);
                  specbind (symb, Qt);
                  Fbeginning_of_line (Qnil);
                  res = PT;
                  unbind_to (specindex_b, Qnil);
                }
              else
                {
                  res = XFIXNUM (window->start);
                }
            }

          unbind_to (specbind_, Qnil);
	  Lisp_Object tmp;
	  XSETFASTINT (tmp, res);
	  set_marker_restricted (window->start, tmp, window->contents);
	  window->start_at_line_beg = false;
	  window->force_start = true;
	  window->update_mode_line = true;
	  window->redisplay = true;
	  window->window_end_valid = false;
          Fset_window_point (window_, CALLN (Fplus, tmp, make_fixnum (100)));
          struct glyph_row *mr = MATRIX_FIRST_TEXT_ROW (window->current_matrix);
          while (mr->y < FRAME_LINE_HEIGHT (XFRAME (window->frame)))
            ++mr;
          int begin_row_height = mr->height;
          if (!window->vpixoffset)
            window->vpixoffset = -begin_row_height;
          window->vpixoffset -= vs_begin;
          if (window->vpixoffset >= 0)
            {
              window->vpixoffset = 0;
              Fset_window_start (Qnil, tmp, Qt);
            }

	}
      if (vs_begin > vs_stop)
	--vs_begin;
      else
	++vs_begin;
      XBUFFER (window->contents)->prevent_redisplay_optimizations_p = true;
      redisplay ();
    }
}

DEFUN ("pgtk-pixel-scroll-up", Fpgtk_pixel_scroll_up, Spgtk_pixel_scroll_up,
       1, 1, 0, doc: /* Pixel-scroll the selected window by PIXELS. */)
  (Lisp_Object pixels)
{
  if (NILP (Fwindow_system (Qnil)))
    error ("No window system");
  pgtk_vpixoffset_scroll (XFIXNUM (pixels),
			  XWINDOW (selected_window));
  return Qnil;
}
#endif

DEFUN ("pgtk-backend-display-class", Fpgtk_backend_display_class, Spgtk_backend_display_class,
       0, 1, "",
       doc: /* Returns the name of the Gdk backend display class of the TERMINAL.
The optional argument TERMINAL specifies which display to ask about.
TERMINAL should be a terminal object, a frame or a display name (a string).
If omitted or nil, that stands for the selected frame's display.  */)
(Lisp_Object terminal)
{
  struct pgtk_display_info *dpyinfo = check_pgtk_display_info (terminal);
  GdkDisplay *gdpy = dpyinfo->gdpy;
  const gchar *type_name = G_OBJECT_TYPE_NAME (G_OBJECT (gdpy));
  return build_string (type_name);
}
#ifdef HAVE_GTK3
DEFUN ("pgtk-show-inspector", Fpgtk_show_inspector, Spgtk_show_inspector,
       0, 0, "", doc: /* Show the GTK inspector debug tool. */)
  (void)
{
  if (NILP (Fwindow_system (Qnil)))
    error ("No window system");
#if defined (GDK_VERSION_3_14) || defined (HAVE_GTK4)
  gtk_window_set_interactive_debugging (TRUE);
#endif
  return Qnil;
}
#endif

#ifdef HAVE_GTK4
DEFUN ("pgtk-default-font-family", Fpgtk_default_font_family,
       Spgtk_default_font_family, 1, 1, 0,
       doc: /* Returns the default GTK font family if MONO is nil,
or the default monospace family if MONO is non-nil. */)
  (Lisp_Object mono)
{
  return eg_get_font_family (!NILP (mono));
}

DEFUN ("pgtk-get-text-caret-width", Fpgtk_get_text_caret_width,
       Spgtk_get_text_caret_width, 0, 0, 0,
       doc: /* Return the width of GTK text carets in pixels. */)
  (void)
{
  return eg_get_caret_px_width ();
}

DEFUN ("pgtk-get-separator-width", Fpgtk_get_separator_width,
       Spgtk_get_separator_width, 0, 0, 0,
       doc: /* Return the width of GTK separators, in pixels. */)
  (void)
{
  return eg_get_divider_width ();
}
#endif

/* ==========================================================================

    Lisp interface declaration

   ========================================================================== */

void
syms_of_pgtkfns (void)
{
  DEFSYM (Qfont_parameter, "font-parameter");
  DEFSYM (Qfontsize, "fontsize");
  DEFSYM (Qcancel_timer, "cancel-timer");
  DEFSYM (Qframe_title_format, "frame-title-format");
  DEFSYM (Qicon_title_format, "icon-title-format");
  DEFSYM (Qdark, "dark");
#ifdef HAVE_GTK4
  DEFSYM (Qload_theme, "load-theme");
  DEFSYM (Qgtk, "gtk");
  DEFSYM (Qcustom_theme_enabled_p, "custom-theme-enabled-p");
#endif
  DEFVAR_LISP ("x-cursor-fore-pixel", Vx_cursor_fore_pixel, doc: /* A string indicating the foreground color of the cursor box.  */);
  Vx_cursor_fore_pixel = Qnil;

  DEFVAR_LISP ("pgtk-icon-type-alist", Vpgtk_icon_type_alist,
               doc: /* Alist of elements (REGEXP . IMAGE) for images of icons associated to frames.
If the title of a frame matches REGEXP, then IMAGE.tiff is
selected as the image of the icon representing the frame when it's
miniaturized.  If an element is t, then Emacs tries to select an icon
based on the filetype of the visited file.

The images have to be installed in a folder called English.lproj in the
Emacs folder.  You have to restart Emacs after installing new icons.

Example: Install an icon Gnus.tiff and execute the following code

  (setq pgtk-icon-type-alist
        (append pgtk-icon-type-alist
                \\='((\"^\\\\*\\\\(Group\\\\*$\\\\|Summary \\\\|Article\\\\*$\\\\)\"
                   . \"Gnus\"))))

When you miniaturize a Group, Summary or Article frame, Gnus.tiff will
be used as the image of the icon representing the frame.  */);
  Vpgtk_icon_type_alist = list1 (Qt);

  /* Provide x-toolkit also for GTK.  Internally GTK does not use Xt so it
     is not an X toolkit in that sense (USE_X_TOOLKIT is not defined).
     But for a user it is a toolkit for X, and indeed, configure
     accepts --with-x-toolkit=gtk.  */
  Fprovide (intern_c_string ("x-toolkit"), Qnil);
  Fprovide (intern_c_string ("gtk"), Qnil);
  Fprovide (intern_c_string ("move-toolbar"), Qnil);

  DEFVAR_LISP ("gtk-version-string", Vgtk_version_string,
	       doc: /* Version info for GTK+.  */);
  {
    char *ver = g_strdup_printf ("%d.%d.%d", GTK_MAJOR_VERSION,
                                 GTK_MINOR_VERSION, GTK_MICRO_VERSION);
    int len = strlen (ver);
    Vgtk_version_string = make_pure_string (ver, len, len, false);
    g_free (ver);
  }

  Fprovide (intern_c_string ("cairo"), Qnil);

  DEFVAR_LISP ("cairo-version-string", Vcairo_version_string,
	       doc: /* Version info for cairo.  */);
  {
    char *ver = g_strdup_printf ("%d.%d.%d", CAIRO_VERSION_MAJOR,
                                 CAIRO_VERSION_MINOR, CAIRO_VERSION_MICRO);
    int len = strlen (ver);
    Vcairo_version_string = make_pure_string (ver, len, len, false);
    g_free (ver);
  }


  defsubr (&Sx_select_font);

  defsubr (&Spgtk_set_resource);
  defsubr (&Sxw_display_color_p); /* this and next called directly by C code */
  defsubr (&Sx_display_grayscale_p);
  defsubr (&Spgtk_font_name);
  defsubr (&Sxw_color_defined_p);
  defsubr (&Sxw_color_values);
  defsubr (&Sx_server_max_request_size);
  defsubr (&Sx_server_vendor);
  defsubr (&Sx_server_version);
  defsubr (&Sx_display_pixel_width);
  defsubr (&Sx_display_pixel_height);
  defsubr (&Spgtk_display_monitor_attributes_list);
  defsubr (&Spgtk_frame_geometry);
  defsubr (&Spgtk_frame_edges);
  defsubr (&Spgtk_frame_restack);
  defsubr (&Spgtk_set_mouse_absolute_pixel_position);
  defsubr (&Spgtk_mouse_absolute_pixel_position);
  defsubr (&Sx_display_mm_width);
  defsubr (&Sx_display_mm_height);
  defsubr (&Sx_display_screens);
  defsubr (&Sx_display_planes);
  defsubr (&Sx_display_color_cells);
  defsubr (&Sx_display_visual_class);
  defsubr (&Sx_display_backing_store);
  defsubr (&Sx_display_save_under);
  defsubr (&Sx_create_frame);
  defsubr (&Sx_open_connection);
  defsubr (&Sx_close_connection);
  defsubr (&Sx_display_list);

#ifdef HAVE_GTK4
  defsubr (&Spgtk_default_font_family);
  defsubr (&Spgtk_get_text_caret_width);
  defsubr (&Spgtk_get_separator_width);
#endif

#ifdef HAVE_GTK3
  defsubr (&Spgtk_show_inspector);
#endif

  defsubr (&Spgtk_hide_others);
  defsubr (&Spgtk_hide_emacs);

  defsubr (&Sx_show_tip);
  defsubr (&Sx_hide_tip);

  // defsubr (&Spgtk_export_frames);
  defsubr (&Spgtk_page_setup_dialog);
  defsubr (&Spgtk_get_page_setup);
  defsubr (&Spgtk_print_frames_dialog);
  defsubr (&Spgtk_backend_display_class);

#ifdef HAVE_GTK3
  defsubr (&Spgtk_color_dialog);
#endif

#ifdef HAVE_GTK4
  defsubr (&Spgtk_pixel_scroll_up);
  defsubr (&Spgtk_show_selection_options);
#endif

  defsubr (&Sx_file_dialog);

  as_status = 0;
  as_script = Qnil;
  as_result = 0;

  tip_frame = Qnil;
  staticpro (&tip_frame);
  tip_timer = Qnil;
  staticpro (&tip_timer);

  /* This is not ifdef:ed, so other builds than GTK can customize it.  */
  DEFVAR_BOOL ("x-gtk-use-old-file-dialog", x_gtk_use_old_file_dialog,
    doc: /* Non-nil means prompt with the old GTK file selection dialog.
If nil or if the file selection dialog is not available, the new GTK file
chooser is used instead.  To turn off all file dialogs set the
variable `use-file-dialog'.  */);
  x_gtk_use_old_file_dialog = false;

  DEFVAR_BOOL ("x-gtk-show-hidden-files", x_gtk_show_hidden_files,
    doc: /* If non-nil, the GTK file chooser will by default show hidden files.
Note that this is just the default, there is a toggle button on the file
chooser to show or not show hidden files on a case by case basis.  */);
  x_gtk_show_hidden_files = false;

  DEFVAR_BOOL ("x-gtk-file-dialog-help-text", x_gtk_file_dialog_help_text,
    doc: /* If non-nil, the GTK file chooser will show additional help text.
If more space for files in the file chooser dialog is wanted, set this to nil
to turn the additional text off.  */);
  x_gtk_file_dialog_help_text = true;

  DEFVAR_BOOL ("x-gtk-use-system-tooltips", x_gtk_use_system_tooltips,
    doc: /* If non-nil with a Gtk+ built Emacs, the Gtk+ tooltip is used.
Otherwise use Emacs own tooltip implementation.
When using Gtk+ tooltips, the tooltip face is not used.  */);
  x_gtk_use_system_tooltips = true;

  DEFVAR_BOOL ("x-gtk-use-color-dialogs", x_gtk_use_color_dialogs,
	       doc: /* If non-nil with a GTK+ built Emacs, GTK color dialogs
will be used by read-color.  */);
  x_gtk_use_color_dialogs = true;

  DEFSYM (Qmono, "mono");

  DEFSYM (Qpdf, "pdf");

  DEFSYM (Qorientation, "orientation");
  DEFSYM (Qtop_margin, "top-margin");
  DEFSYM (Qbottom_margin, "bottom-margin");
  DEFSYM (Qportrait, "portrait");
  DEFSYM (Qlandscape, "landscape");
  DEFSYM (Qreverse_portrait, "reverse-portrait");
  DEFSYM (Qreverse_landscape, "reverse-landscape");
}

#ifdef PGTK_DEBUG

#include <stdarg.h>
#include <time.h>
void
pgtk_log (const char *file, int lineno, const char *fmt, ...)
{
  struct timespec ts;
  struct tm tm;
  char timestr[32];
  va_list ap;

  clock_gettime (CLOCK_REALTIME, &ts);

  localtime_r (&ts.tv_sec, &tm);
  strftime (timestr, sizeof timestr, "%H:%M:%S", &tm);

  fprintf (stderr, "%s.%06ld %.10s:%04d ", timestr, ts.tv_nsec / 1000, file,
           lineno);
  va_start (ap, fmt);
  vfprintf (stderr, fmt, ap);
  va_end (ap);
  fputc ('\n', stderr);
}

void
pgtk_backtrace (const char *file, int lineno)
{
  Lisp_Object bt = make_uninit_vector (10);
  for (int i = 0; i < 10; i++)
    ASET (bt, i, Qnil);

  struct timespec ts;
  struct tm tm;
  char timestr[32];

  clock_gettime (CLOCK_REALTIME, &ts);

  localtime_r (&ts.tv_sec, &tm);
  strftime (timestr, sizeof timestr, "%H:%M:%S", &tm);

  fprintf (stderr, "%s.%06ld %.10s:%04d ********\n", timestr, ts.tv_nsec / 1000,
           file, lineno);

  get_backtrace (bt);
  for (int i = 0; i < 10; i++)
    {
      Lisp_Object stk = AREF (bt, i);
      if (!NILP (stk))
        {
          Lisp_Object args[2] = {build_string ("%S"), stk};
          Lisp_Object str = Fformat (2, args);
          fprintf (stderr, "%s %.10s:%04d %s\n", timestr, file, lineno,
                   SSDATA (str));
        }
    }

  fprintf (stderr, "%s %.10s:%04d ********\n", timestr, file, lineno);
}

#endif

#endif