362 lines
10 KiB
C
362 lines
10 KiB
C
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
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/* Copyright (C) 1998 Redhat Software Inc.
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* Code available under the Gnu GPL.
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* Authors: Owen Taylor <otaylor@redhat.com>
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*/
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#include <dirent.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <libgnome/libgnome.h>
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#include "wm-properties.h"
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/* Current list of window managers */
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GList *window_managers = NULL;
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/* List on startup */
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static GList *window_managers_save = NULL;
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/* Current window manager */
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static WindowManager *current_wm;
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/* Window manager on startup */
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static WindowManager *current_wm_save;
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gboolean
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is_blank (gchar *str)
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{
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while (*str) {
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if (!isspace(*str))
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return FALSE;
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str++;
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}
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return TRUE;
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}
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static gint
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wm_compare (gconstpointer a, gconstpointer b)
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{
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const WindowManager *wm_a = (const WindowManager *)a;
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const WindowManager *wm_b = (const WindowManager *)b;
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return g_strcasecmp (wm_a->dentry->name, wm_b->dentry->name);
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}
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static void
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wm_free (WindowManager *wm)
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{
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gnome_desktop_entry_free (wm->dentry);
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g_free (wm->config_exec);
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g_free (wm->config_tryexec);;
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g_free (wm);
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}
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void
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wm_check_present (WindowManager *wm)
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{
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gchar *path;
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if (wm->dentry->exec) {
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if (wm->dentry->tryexec) {
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path = gnome_is_program_in_path (wm->dentry->tryexec);
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wm->is_present = (path != NULL);
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if (path)
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g_free (path);
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} else
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wm->is_present = TRUE;
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} else
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wm->is_present = FALSE;
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if (wm->config_exec) {
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if (wm->config_tryexec) {
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path = gnome_is_program_in_path (wm->config_tryexec);
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wm->is_config_present = (path != NULL);
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if (path)
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g_free (path);
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} else
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wm->is_config_present = TRUE;
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} else
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wm->is_config_present = FALSE;
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}
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static WindowManager *
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wm_copy (WindowManager *wm)
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{
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WindowManager *result = g_new (WindowManager, 1);
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result->dentry = gnome_desktop_entry_copy (wm->dentry);
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result->config_exec = g_strdup (wm->config_exec);
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result->config_tryexec = g_strdup (wm->config_tryexec);
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result->session_managed = wm->session_managed;
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result->is_user = wm->is_user;
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result->is_present = wm->is_present;
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result->is_config_present = wm->is_config_present;
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return result;
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}
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static WindowManager *
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wm_list_find (GList *list, gchar *name)
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{
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GList *tmp_list = list;
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while (tmp_list) {
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WindowManager *wm = tmp_list->data;
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if (strcmp (wm->dentry->name, name) == 0)
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return wm;
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tmp_list = tmp_list->next;
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}
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return NULL;
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}
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static GList *
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wm_list_find_files (gchar *directory)
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{
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DIR *dir;
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struct dirent *child;
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GList *result = NULL;
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gchar *suffix;
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dir = opendir (directory);
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if (dir == NULL)
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return NULL;
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while ((child = readdir (dir)) != NULL) {
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/* Ignore files without .desktop suffix, and ignore
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* .desktop files with no prefix
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*/
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suffix = child->d_name + strlen (child->d_name) - 8;
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/* strlen(".desktop") == 8 */
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if (suffix <= child->d_name ||
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strcmp (suffix, ".desktop") != 0)
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continue;
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result = g_list_prepend (result,
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g_concat_dir_and_file (directory,
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child->d_name));
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}
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closedir (dir);
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return result;
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}
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static void
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wm_list_read_dir (gchar *directory, gboolean is_user)
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{
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WindowManager *wm;
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GList *tmp_list;
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GList *files;
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gchar *prefix;
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files = wm_list_find_files (directory);
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tmp_list = files;
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while (tmp_list) {
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wm = g_new (WindowManager, 1);
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wm->dentry = gnome_desktop_entry_load_unconditional (tmp_list->data);
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if (!wm->dentry) {
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g_free (wm);
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tmp_list = tmp_list->next;
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continue;
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}
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prefix = g_strconcat ("=", wm->dentry->location, "=/Window Manager/", NULL);
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gnome_config_push_prefix (prefix);
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g_free (prefix);
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wm->config_exec = gnome_config_get_string ("ConfigExec");
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wm->config_tryexec = gnome_config_get_string ("ConfigTryExec");
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wm->session_managed = gnome_config_get_bool ("SessionManaged=0");
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wm->is_user = is_user;
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if (wm->config_exec && is_blank (wm->config_exec)) {
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g_free (wm->config_exec);
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wm->config_exec = NULL;
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}
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gnome_config_pop_prefix ();
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wm_check_present (wm);
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if (wm->dentry->name && wm->dentry->exec &&
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(wm->is_user || wm->is_present)) {
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window_managers =
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g_list_insert_sorted (window_managers,
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wm,
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wm_compare);
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window_managers_save =
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g_list_insert_sorted (window_managers_save,
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wm_copy (wm),
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wm_compare);
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} else {
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wm_free (wm);
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}
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tmp_list = tmp_list->next;
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}
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g_list_free (files);
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}
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void
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wm_list_init (void)
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{
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gchar *tempdir;
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gchar *name;
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tempdir = gnome_unconditional_datadir_file ("gnome/wm-properties/");
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wm_list_read_dir (tempdir, FALSE);
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g_free (tempdir);
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tempdir = gnome_util_home_file("wm-properties/");
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wm_list_read_dir (tempdir, TRUE);
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g_free (tempdir);
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name = gnome_config_get_string ("wm-properties/Config/Config/Current");
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if (name) {
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current_wm = wm_list_find (window_managers, name);
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g_free (name);
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}
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if (!current_wm && window_managers)
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current_wm = window_managers->data;
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if (!current_wm)
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g_error ("No window manager desktops found!");
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current_wm_save = wm_list_find (window_managers_save, current_wm->dentry->name);
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}
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void
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wm_list_save (void)
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{
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GList *old_files;
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GList *tmp_list;
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gchar *tempdir;
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gchar *filename;
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gchar *prefix;
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WindowManager *wm;
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/* Clean out the current contents of .gnome/wm-desktops
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*/
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tempdir = gnome_util_home_file("wm-properties/");
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old_files = wm_list_find_files (tempdir);
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g_free (tempdir);
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tmp_list = old_files;
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while (tmp_list) {
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prefix = g_strconcat ("=", tmp_list->data, "=", NULL);
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gnome_config_clean_file (prefix);
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gnome_config_sync_file (prefix);
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g_free (prefix);
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tmp_list = tmp_list->next;
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}
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g_list_free (old_files);
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/* Save the user's desktops
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*/
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tmp_list = window_managers;
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while (tmp_list) {
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wm = tmp_list->data;
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if (wm->is_user) {
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gnome_desktop_entry_save (wm->dentry);
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prefix = g_strconcat ("=", wm->dentry->location, "=/Window Manager/", NULL);
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gnome_config_push_prefix (prefix);
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g_free (prefix);
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if (wm->config_exec)
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gnome_config_set_string ("ConfigExec", wm->config_exec);
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if (wm->config_tryexec)
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gnome_config_set_string ("ConfigTryExec", wm->config_tryexec);
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gnome_config_set_bool ("SessionManaged=0", wm->session_managed);
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gnome_config_pop_prefix ();
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}
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tmp_list = tmp_list->next;
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}
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/* Save the current window manager
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*/
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gnome_config_set_string ("wm-properties/Config/Config/Current",
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current_wm->dentry->name);
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gnome_config_sync ();
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}
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void
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wm_list_revert (void)
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{
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GList *tmp_list;
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gchar *old_name = g_strdup (current_wm->dentry->name);
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g_list_foreach (window_managers, (GFunc)wm_free, NULL);
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g_list_free (window_managers);
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window_managers = NULL;
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tmp_list = window_managers_save;
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while (tmp_list) {
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window_managers = g_list_prepend (window_managers,
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wm_copy (tmp_list->data));
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tmp_list = tmp_list->next;
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}
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window_managers = g_list_reverse (window_managers);
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current_wm = wm_list_find (window_managers, old_name);
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g_free (old_name);
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}
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void
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wm_list_add (WindowManager *wm)
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{
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g_return_if_fail (wm != NULL);
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window_managers = g_list_insert_sorted (window_managers, wm,
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wm_compare);
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}
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void
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wm_list_delete (WindowManager *wm)
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{
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GList *node;
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g_return_if_fail (wm != NULL);
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g_return_if_fail (wm != current_wm);
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node = g_list_find (window_managers, wm);
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g_return_if_fail (node != NULL);
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window_managers = g_list_remove_link (window_managers, node);
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g_list_free_1 (node);
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wm_free (wm);
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}
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void
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wm_list_set_current (WindowManager *wm)
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{
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current_wm = wm;
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}
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WindowManager *
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wm_list_get_current (void)
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{
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return current_wm;
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}
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WindowManager *
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wm_list_get_revert (void)
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{
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return wm_list_find (window_managers, current_wm_save->dentry->name);
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}
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