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#include "config.h"
#include <gtk/gtk.h>
#include <libgnome/libgnome.h>
#include <gdk/gdkkeysyms.h>
#include <string.h>
#include <gdk/gdkx.h>
#include <X11/XKBlib.h>
#include "greeter_parser.h"
#include "greeter_item_capslock.h"
static gboolean caps_lock_state = FALSE;
static Display *
get_parent_display (void)
{
static gboolean tested = FALSE;
static Display *dsp = NULL;
if (tested)
return dsp;
tested = TRUE;
if (g_getenv ("GDM_PARENT_DISPLAY") != NULL)
{
char *old_xauth = g_strdup (g_getenv ("XAUTHORITY"));
if (g_getenv ("GDM_PARENT_XAUTHORITY") != NULL)
{
gnome_setenv ("XAUTHORITY",
g_getenv ("GDM_PARENT_XAUTHORITY"), TRUE);
}
dsp = XOpenDisplay (g_getenv ("GDM_PARENT_DISPLAY"));
if (old_xauth != NULL)
gnome_setenv ("XAUTHORITY", old_xauth, TRUE);
else
gnome_unsetenv ("XAUTHORITY");
g_free (old_xauth);
}
return dsp;
}
static gboolean
is_caps_lock_on (void)
{
unsigned int states;
Display *dsp;
/* HACK! incredible hack, if this is set we get
* indicator state from the parent display, since we must be inside an
* Xnest */
dsp = get_parent_display ();
if (dsp == NULL)
dsp = GDK_DISPLAY ();
if (XkbGetIndicatorState (dsp, XkbUseCoreKbd, &states) != Success)
return FALSE;
return (states & ShiftMask) != 0;
}
static void
capslock_update (gboolean new_state)
{
GreeterItemInfo *info;
GnomeCanvasItem *item;
caps_lock_state = new_state;
info = greeter_lookup_id ("caps-lock-warning");
if (info)
{
if (info->group_item != NULL)
item = GNOME_CANVAS_ITEM (info->group_item);
else
item = info->item;
if (caps_lock_state)
{
gnome_canvas_item_show (item);
}
else
{
gnome_canvas_item_hide (item);
}
}
}
static gboolean
cl_key_press_event (GtkWidget *widget, GdkEventKey *key, gpointer data)
{
gboolean new_state;
new_state = is_caps_lock_on ();
if (new_state != caps_lock_state)
capslock_update (new_state);
return FALSE;
}
gboolean
greeter_item_capslock_setup (GtkWidget *window)
{
capslock_update (is_caps_lock_on ());
g_signal_connect (G_OBJECT (window), "key_press_event",
G_CALLBACK (cl_key_press_event), NULL);
return TRUE;
}
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