obt/display.c (raw)
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/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
obt/display.c for the Openbox window manager
Copyright (c) 2007 Dana Jansens
This program 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 2 of the License, or
(at your option) any later version.
This program 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.
See the COPYING file for a copy of the GNU General Public License.
*/
#include "obt/display.h"
#include "obt/prop.h"
#include "obt/internal.h"
#include "obt/keyboard.h"
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
Display* obt_display = NULL;
gboolean obt_display_error_occured = FALSE;
gboolean obt_display_extension_xkb = FALSE;
gint obt_display_extension_xkb_basep;
gboolean obt_display_extension_shape = FALSE;
gint obt_display_extension_shape_basep;
gboolean obt_display_extension_xinerama = FALSE;
gint obt_display_extension_xinerama_basep;
gboolean obt_display_extension_randr = FALSE;
gint obt_display_extension_randr_basep;
gboolean obt_display_extension_sync = FALSE;
gint obt_display_extension_sync_basep;
static gint xerror_handler(Display *d, XErrorEvent *e);
static gboolean xerror_ignore = FALSE;
gboolean obt_display_open(const char *display_name)
{
gchar *n;
Display *d = NULL;
n = display_name ? g_strdup(display_name) : NULL;
obt_display = d = XOpenDisplay(n);
if (d) {
gint junk;
(void)junk;
if (fcntl(ConnectionNumber(d), F_SETFD, 1) == -1)
g_message("Failed to set display as close-on-exec");
XSetErrorHandler(xerror_handler);
/* read what extensions are present */
#ifdef XKB
obt_display_extension_xkb =
XkbQueryExtension(d, &junk,
&obt_display_extension_xkb_basep, &junk,
NULL, NULL);
if (!obt_display_extension_xkb)
g_message("XKB extension is not present on the server");
#endif
#ifdef SHAPE
obt_display_extension_shape =
XShapeQueryExtension(d, &obt_display_extension_shape_basep,
&junk);
if (!obt_display_extension_shape)
g_message("X Shape extension is not present on the server");
#endif
#ifdef XINERAMA
obt_display_extension_xinerama =
XineramaQueryExtension(d,
&obt_display_extension_xinerama_basep,
&junk) && XineramaIsActive(d);
if (!obt_display_extension_xinerama)
g_message("Xinerama extension is not present on the server");
#endif
#ifdef XRANDR
obt_display_extension_randr =
XRRQueryExtension(d, &obt_display_extension_randr_basep,
&junk);
if (!obt_display_extension_randr)
g_message("XRandR extension is not present on the server");
#endif
#ifdef SYNC
obt_display_extension_sync =
XSyncQueryExtension(d, &obt_display_extension_sync_basep,
&junk) && XSyncInitialize(d, &junk, &junk);
if (!obt_display_extension_sync)
g_message("X Sync extension is not present on the server or is an "
"incompatible version");
#endif
obt_prop_startup();
obt_keyboard_reload();
}
g_free(n);
return obt_display != NULL;
}
void obt_display_close()
{
obt_keyboard_shutdown();
if (obt_display) XCloseDisplay(obt_display);
}
static gint xerror_handler(Display *d, XErrorEvent *e)
{
#ifdef DEBUG
gchar errtxt[128];
XGetErrorText(d, e->error_code, errtxt, 127);
if (!xerror_ignore) {
if (e->error_code == BadWindow)
/*g_message(_("X Error: %s\n"), errtxt)*/;
else
g_error("X Error: %s", errtxt);
} else
g_message("XError code %d '%s'", e->error_code, errtxt);
#else
(void)d; (void)e;
#endif
obt_display_error_occured = TRUE;
return 0;
}
void obt_display_ignore_errors(gboolean ignore)
{
XSync(obt_display, FALSE);
xerror_ignore = ignore;
if (ignore) obt_display_error_occured = FALSE;
}
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