focus.c

   1 /*
   2  * focus.c - focus management
   3  *
   4  * Copyright © 2007-2008 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 "tag.h"
  23 #include "focus.h"
  24 #include "client.h"
  25
  26 extern AwesomeConf globalconf;
  27
  28 static client_node_t *
  29 focus_get_node_by_client(Client *c)
  30 {
  31     client_node_t *node;
  32
  33     for(node = globalconf.focus; node; node = node->next)
  34         if(node->client == c)
  35             return node;
  36
  37     return NULL;
  38 }
  39
  40 void
  41 focus_add_client(Client *c)
  42 {
  43     client_node_t *node;
  44
  45     /* if we don't find this node, create a new one */
  46     if(!(node = focus_get_node_by_client(c)))
  47     {
  48         node = p_new(client_node_t, 1);
  49         node->client = c;
  50     }
  51     else /* if we've got a node, detach it */
  52         client_node_list_detach(&globalconf.focus, node);
  53
  54     client_node_list_push(&globalconf.focus, node);
  55 }
  56
  57 void
  58 focus_delete_client(Client *c)
  59 {
  60     client_node_t *node = focus_get_node_by_client(c);
  61
  62     if(node)
  63     {
  64         client_node_list_detach(&globalconf.focus, node);
  65         p_delete(&node);
  66     }
  67 }
  68
  69 static Client *
  70 focus_get_latest_client_for_tags(Tag **t, int nindex)
  71 {
  72     client_node_t *node;
  73     Tag **tags;
  74     int i = 0;
  75
  76     for(node = globalconf.focus; node; node = node->next)
  77         if(node->client && !node->client->skip)
  78             for(tags = t; *tags; tags++)
  79                 if(is_client_tagged(node->client, *tags))
  80                 {
  81                     if(i == nindex)
  82                         return node->client;
  83                     else
  84                         i--;
  85                 }
  86
  87     return NULL;
  88 }
  89
  90 Client *
  91 focus_get_current_client(int screen)
  92 {
  93     Tag **curtags = tags_get_current(screen);
  94     Client *sel = focus_get_latest_client_for_tags(curtags, 0);
  95     p_delete(&curtags);
  96
  97     return sel;
  98 }
  99
 100 /** Jump in focus history stack
 101  * \param screen Screen ID
 102  * \param arg Integer argument
 103  * \ingroup ui_callback
 104  */
 105 void
 106 uicb_focus_history(int screen, char *arg)
 107 {
 108     int i;
 109     Tag **curtags;
 110     Client *c;
 111
 112     if(arg)
 113     {
 114         i = atoi(arg);
 115
 116         if(i < 0)
 117         {
 118             curtags = tags_get_current(screen);
 119             c = focus_get_latest_client_for_tags(curtags, i);
 120             p_delete(&curtags);
 121             if(c)
 122                 client_focus(c, screen, False);
 123         }
 124     }
 125 }
 126
 127 void
 128 uicb_focus_client_byname(int screen, char *arg)
 129 {
 130     Client *c;
 131     Tag **curtags, **tag;
 132
 133     if(arg)
 134     {
 135         curtags = tags_get_current(screen);
 136         if((c = client_get_byname(globalconf.clients, arg)))
 137            for(tag = curtags; *tag; tag++)
 138                if(is_client_tagged(c, *tag))
 139                    client_focus(c, screen, False);
 140         p_delete(&curtags);
 141     }
 142 }
 143
 144 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80