Rewrite e_cb_key_change(), eliminating use of deprecated gdk_flush()

viewer.c

@@ -1,16 +1,12 @@
 #include "config.h"
 
-#include <gtk/gtk.h>
 #include <ctype.h>
 #include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sys/stat.h>
-#include <X11/Xlib.h>
-#include <X11/XKBlib.h>
 #include <gdk/gdkx.h>
-#include <unistd.h>
+#include <gtk/gtk.h>
 
 #include "e16keyedit.h"
 
@@ -276,6 +272,30 @@ clist_row_moveto(GtkWidget * widget, int row)
 #endif
 }
 
+static void
+on_popup_clicked(GtkWidget * win, GdkEventKey * ev)
+{
+   char               *key;
+
+   key = gdk_keyval_name(ev->keyval);
+   gtk_entry_set_text(GTK_ENTRY(act_key), key);
+   clist_row_current_set_value(clist, 1, key);
+
+   gtk_widget_destroy(win);
+}
+
+static void
+on_popup_mapped(GtkWidget * win, gpointer data __UNUSED__)
+{
+#if USE_GTK == 2
+   gdk_keyboard_grab(gtk_widget_get_window(win), FALSE, GDK_CURRENT_TIME);
+#else
+   gdk_seat_grab(gdk_display_get_default_seat(gtk_widget_get_display(win)),
+		 gtk_widget_get_window(win), GDK_SEAT_CAPABILITY_KEYBOARD,
+		 FALSE, NULL, NULL, NULL, NULL);
+#endif
+}
+
 static void
 e_cb_key_change(GtkWidget * widget __UNUSED__, gpointer data __UNUSED__)
 {
@@ -294,32 +314,9 @@ e_cb_key_change(GtkWidget * widget __UNUSED__, gpointer data __UNUSED__)
    gtk_container_add(GTK_CONTAINER(vbox), label);
    gtk_container_set_border_width(GTK_CONTAINER(vbox), 32);
    gtk_widget_show_all(win);
-   while (gtk_events_pending())
-      gtk_main_iteration();
-   gdk_flush();
-   while (gtk_events_pending())
-      gtk_main_iteration();
 
-   {
-      char               *key;
-      XEvent              ev;
-
-#define WIDGET_XID(widget) GDK_WINDOW_XID(gtk_widget_get_window(widget))
-      gdk_window_set_events(gtk_widget_get_window(win), GDK_KEY_PRESS_MASK);
-      XGrabKeyboard(gdk_x11_get_default_xdisplay(), WIDGET_XID(win),
-		    False, GrabModeAsync, GrabModeAsync, CurrentTime);
-      XSetInputFocus(gdk_x11_get_default_xdisplay(), WIDGET_XID(win),
-		     RevertToPointerRoot, CurrentTime);
-      XWindowEvent(gdk_x11_get_default_xdisplay(), WIDGET_XID(win),
-		   KeyPressMask, &ev);
-      XUngrabKeyboard(gdk_x11_get_default_xdisplay(), CurrentTime);
-      key = XKeysymToString(XkbKeycodeToKeysym(gdk_x11_get_default_xdisplay(),
-					       ev.xkey.keycode, 0, 0));
-      gtk_entry_set_text(GTK_ENTRY(act_key), key);
-      clist_row_current_set_value(clist, 1, key);
-   }
-
-   gtk_widget_destroy(win);
+   g_signal_connect(win, "map-event", G_CALLBACK(on_popup_mapped), NULL);
+   g_signal_connect(win, "key-press-event", G_CALLBACK(on_popup_clicked), NULL);
 }
 
 static void