openbox/group.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    group.c for the Openbox window manager
   4    Copyright (c) 2003-2007   Dana Jansens
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    See the COPYING file for a copy of the GNU General Public License.
  17 */
  18
  19 #include "group.h"
  20 #include "client.h"
  21
  22 static GHashTable *group_map;
  23
  24 static guint window_hash(Window *w) { return *w; }
  25 static gboolean window_comp(Window *w1, Window *w2) { return *w1 == *w2; }
  26
  27 void group_startup(gboolean reconfig)
  28 {
  29     if (reconfig) return;
  30
  31     group_map = g_hash_table_new((GHashFunc)window_hash,
  32                                  (GEqualFunc)window_comp);
  33 }
  34
  35 void group_shutdown(gboolean reconfig)
  36 {
  37     if (reconfig) return;
  38
  39     g_hash_table_destroy(group_map);
  40 }
  41
  42 ObGroup *group_add(Window leader, ObClient *client)
  43 {
  44     ObGroup *self;
  45
  46     self = g_hash_table_lookup(group_map, &leader);
  47     if (self == NULL) {
  48         self = g_slice_new(ObGroup);
  49         self->leader = leader;
  50         self->members = NULL;
  51         g_hash_table_insert(group_map, &self->leader, self);
  52     }
  53
  54     self->members = g_slist_append(self->members, client);
  55
  56     return self;
  57 }
  58
  59 void group_remove(ObGroup *self, ObClient *client)
  60 {
  61     self->members = g_slist_remove(self->members, client);
  62     if (self->members == NULL) {
  63         g_hash_table_remove(group_map, &self->leader);
  64         g_slice_free(ObGroup, self);
  65     }
  66 }