1 files changed, 320 insertions, 0 deletions
diff --git a/libwindow-settings/mate-wm-manager.c b/libwindow-settings/mate-wm-manager.c
new file mode 100644
index 00000000..04097146
--- /dev/null
+++ b/libwindow-settings/mate-wm-manager.c
@@ -0,0 +1,320 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
+
+/* mate-wm-manager.c
+ * Copyright (C) 2002 Seth Nickell
+ * Copyright (C) 1998, 2002 Red Hat, Inc.
+ *
+ * Written by: Seth Nickell <[email protected]>,
+ * Havoc Pennington <[email protected]>
+ * Owen Taylor <[email protected]>,
+ * Bradford Hovinen <[email protected]>
+ *
+ * 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 <config.h>
+#include "mate-wm-manager.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <string.h>
+
+typedef struct {
+ MateDesktopItem *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;
+ guint session_managed : 1;
+ guint is_user : 1;
+ guint is_present : 1;
+ guint is_config_present : 1;
+ MateWindowManager *mate_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_build_filename (directory, child->d_name, NULL));
+ }
+ 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 (mate_desktop_item_get_string (wm_a->ditem, MATE_DESKTOP_ITEM_NAME),
+ mate_desktop_item_get_string (wm_b->ditem, MATE_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 = mate_desktop_item_new_from_file (desktop_file, 0, NULL);
+
+ if (wm->ditem == NULL) {
+ g_free (wm);
+ return NULL;
+ }
+
+ mate_desktop_item_set_entry_type (wm->ditem, MATE_DESKTOP_ITEM_TYPE_APPLICATION);
+
+ wm->exec = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ MATE_DESKTOP_ITEM_EXEC));
+ 
+ wm->name = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ MATE_DESKTOP_ITEM_NAME));
+ 
+ wm->config_exec = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ "ConfigExec"));
+ wm->config_tryexec = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ "ConfigTryExec"));
+ wm->session_managed = mate_desktop_item_get_boolean (wm->ditem,
+ "SessionManaged");
+
+ wm->module = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ "X-MATE-WMSettingsModule"));
+
+ wm->identify_name = g_strdup (mate_desktop_item_get_string (wm->ditem,
+ "X-MATE-WMName"));
+ 
+ wm->is_user = is_user;
+ 
+ if (mate_desktop_item_get_string (wm->ditem, MATE_DESKTOP_ITEM_EXEC)) {
+ const char *tryexec;
+
+ tryexec = mate_desktop_item_get_string (wm->ditem, MATE_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
+mate_wm_manager_init (void)
+{
+ char *tempdir;
+
+ if (done_scan)
+ return;
+
+ done_scan = TRUE;
+ 
+ tempdir = g_build_filename (MATE_WM_PROPERTY_PATH, NULL);
+ scan_wm_directory (tempdir, FALSE);
+ g_free (tempdir);
+
+ tempdir = g_build_filename (g_get_home_dir(), ".mate2", "wm-properties", NULL);
+ 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;
+}
+
+MateWindowManager*
+mate_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 (MateWindowManager*) mate_window_manager_new (wm->ditem);
+ else
+ return NULL;
+}
+
+gboolean
+mate_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;
+ }
+}