cnode.c

   1 /*
   2  * cnode.c - client node lists management
   3  *
   4  * Copyright © 2008 Julien Danjou <julien@danjou.info>
   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  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include "cnode.h"
  23
  24 /** Get the client's node focus.
  25  * \param list The client list.
  26  * \param c The client.
  27  * \return The client node focus.
  28  */
  29 client_node_t *
  30 client_node_client_getby(client_node_t *list, client_t *c)
  31 {
  32     client_node_t *node;
  33
  34     for(node = list; node; node = node->next)
  35         if(node->client == c)
  36             return node;
  37
  38     return NULL;
  39 }
  40
  41 /** Create a client node for focus.
  42  * \param list The client list.
  43  * \param c The client.
  44  * \return The client focus node.
  45  */
  46 client_node_t *
  47 client_node_client_add(client_node_t **list, client_t *c)
  48 {
  49     client_node_t *node;
  50
  51     /* if we don't find this node, create a new one */
  52     if(!(node = client_node_client_getby(*list, c)))
  53     {
  54         node = p_new(client_node_t, 1);
  55         node->client = c;
  56     }
  57     else /* if we've got a node, detach it */
  58         client_node_list_detach(list, node);
  59
  60     return node;
  61 }
  62
  63 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80