/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */ /* gnome-wm-manager.c * Copyright (C) 2002 Seth Nickell * Copyright (C) 1998, 2002 Red Hat, Inc. * * Written by: Seth Nickell , * Havoc Pennington * Owen Taylor , * Bradford Hovinen * * 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, 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #include #include "gnome-wm-manager.h" #include #include #include #include #include #include #include #include typedef struct { GnomeDesktopItem *ditem; char *name; /* human readable, localized */ char *identify_name; /* name we expect to be set on the screen */ char *exec; char *config_exec; char *config_tryexec; char *module; gboolean session_managed : 1; gboolean is_user : 1; gboolean is_present : 1; gboolean is_config_present : 1; GnomeWindowManager *gnome_wm; } AvailableWindowManager; static gboolean done_scan = FALSE; static GList *available_wms; static void wm_free (AvailableWindowManager *wm) { g_free (wm->name); g_free (wm->exec); g_free (wm->config_exec); g_free (wm->config_tryexec); g_free (wm->module); g_free (wm->identify_name); g_free (wm); } static GList * list_desktop_files_in_dir (gchar *directory) { DIR *dir; struct dirent *child; GList *result = NULL; gchar *suffix; dir = opendir (directory); if (dir == NULL) return NULL; while ((child = readdir (dir)) != NULL) { /* Ignore files without .desktop suffix, and ignore * .desktop files with no prefix */ suffix = child->d_name + strlen (child->d_name) - 8; /* strlen(".desktop") == 8 */ if (suffix <= child->d_name || strcmp (suffix, ".desktop") != 0) continue; result = g_list_prepend (result, g_concat_dir_and_file (directory, child->d_name)); } closedir (dir); return result; } static gint wm_compare (gconstpointer a, gconstpointer b) { const AvailableWindowManager *wm_a = (const AvailableWindowManager *)a; const AvailableWindowManager *wm_b = (const AvailableWindowManager *)b; /* mmm, sloooow */ return g_utf8_collate (gnome_desktop_item_get_string (wm_a->ditem, GNOME_DESKTOP_ITEM_NAME), gnome_desktop_item_get_string (wm_b->ditem, GNOME_DESKTOP_ITEM_NAME)); } static AvailableWindowManager* wm_load (const char *desktop_file, gboolean is_user) { gchar *path; AvailableWindowManager *wm; wm = g_new0 (AvailableWindowManager, 1); wm->ditem = gnome_desktop_item_new_from_file (desktop_file, GNOME_DESKTOP_ITEM_TYPE_APPLICATION, NULL); if (wm->ditem == NULL) { g_free (wm); return NULL; } gnome_desktop_item_set_entry_type (wm->ditem, GNOME_DESKTOP_ITEM_TYPE_APPLICATION); wm->exec = g_strdup (gnome_desktop_item_get_string (wm->ditem, GNOME_DESKTOP_ITEM_EXEC)); wm->name = g_strdup (gnome_desktop_item_get_string (wm->ditem, GNOME_DESKTOP_ITEM_NAME)); wm->config_exec = g_strdup (gnome_desktop_item_get_string (wm->ditem, "ConfigExec")); wm->config_tryexec = g_strdup (gnome_desktop_item_get_string (wm->ditem, "ConfigTryExec")); wm->session_managed = gnome_desktop_item_get_boolean (wm->ditem, "SessionManaged"); wm->module = g_strdup (gnome_desktop_item_get_string (wm->ditem, "X-GNOME-WMSettingsModule")); wm->identify_name = g_strdup (gnome_desktop_item_get_string (wm->ditem, "X-GNOME-WMName")); wm->is_user = is_user; if (gnome_desktop_item_get_string (wm->ditem, GNOME_DESKTOP_ITEM_EXEC)) { const char *tryexec; tryexec = gnome_desktop_item_get_string (wm->ditem, GNOME_DESKTOP_ITEM_TRY_EXEC); if (tryexec) { path = g_find_program_in_path (tryexec); wm->is_present = (path != NULL); if (path) g_free (path); } else wm->is_present = TRUE; } else wm->is_present = FALSE; if (wm->config_exec) { if (wm->config_tryexec) { path = g_find_program_in_path (wm->config_tryexec); wm->is_config_present = (path != NULL); if (path) g_free (path); } else { path = g_find_program_in_path (wm->config_exec); wm->is_config_present = (path != NULL); if (path) g_free (path); } } else wm->is_config_present = FALSE; if (wm->name && wm->exec && (wm->is_user || wm->is_present)) return wm; else { wm_free (wm); return NULL; } } static void scan_wm_directory (gchar *directory, gboolean is_user) { GList *tmp_list; GList *files; files = list_desktop_files_in_dir (directory); tmp_list = files; while (tmp_list) { AvailableWindowManager *wm; wm = wm_load (tmp_list->data, is_user); if (wm != NULL) available_wms = g_list_prepend (available_wms, wm); tmp_list = tmp_list->next; } g_list_foreach (files, (GFunc) g_free, NULL); g_list_free (files); } void gnome_wm_manager_init (void) { char *tempdir; if (done_scan) return; done_scan = TRUE; tempdir = gnome_unconditional_datadir_file ("gnome/wm-properties/"); scan_wm_directory (tempdir, FALSE); g_free (tempdir); tempdir = gnome_util_home_file("wm-properties/"); scan_wm_directory (tempdir, TRUE); g_free (tempdir); available_wms = g_list_sort (available_wms, wm_compare); } static AvailableWindowManager* get_current_wm (GdkScreen *screen) { AvailableWindowManager *current_wm; const char *name; GList *tmp_list; g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL); name = gdk_x11_screen_get_window_manager_name (screen); current_wm = NULL; tmp_list = available_wms; while (tmp_list != NULL) { AvailableWindowManager *wm = tmp_list->data; if (wm->identify_name && strcmp (wm->identify_name, name) == 0) { current_wm = wm; break; } tmp_list = tmp_list->next; } if (current_wm == NULL) { /* Try with localized name, sort of crackrock * back compat hack */ tmp_list = available_wms; while (tmp_list != NULL) { AvailableWindowManager *wm = tmp_list->data; if (strcmp (wm->name, name) == 0) { current_wm = wm; break; } tmp_list = tmp_list->next; } } return current_wm; } GnomeWindowManager* gnome_wm_manager_get_current (GdkScreen *screen) { AvailableWindowManager *wm; wm = get_current_wm (screen); if (wm != NULL && wm->module != NULL) /* may still return NULL here */ return (GnomeWindowManager*) gnome_window_manager_new (wm->ditem); else return NULL; } gboolean gnome_wm_manager_spawn_config_tool_for_current (GdkScreen *screen, GError **error) { AvailableWindowManager *wm; wm = get_current_wm (screen); if (wm != NULL && wm->config_exec != NULL) { return g_spawn_command_line_async (wm->config_exec, error); } else { const char *name; name = gdk_x11_screen_get_window_manager_name (screen); g_set_error (error, G_SPAWN_ERROR, G_SPAWN_ERROR_FAILED, _("Window manager \"%s\" has not registered a configuration tool\n"), name); return FALSE; } }