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, major, minor; (void)junk, (void)major, (void)minor; 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 major = XkbMajorVersion; minor = XkbMinorVersion; obt_display_extension_xkb = XkbQueryExtension(d, &junk, &obt_display_extension_xkb_basep, &junk, &major, &minor); if (!obt_display_extension_xkb) g_message("XKB extension is not present on the server or too old"); #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(void) { 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_debug(_("X Error: %s\n"), errtxt)*/; else g_error("X Error: %s", errtxt); } else g_debug("Ignoring 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; } |