136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
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* focus.c - focus management
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*
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* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include "tag.h"
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#include "focus.h"
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#include "client.h"
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extern AwesomeConf globalconf;
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/** Get the client's node focus.
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* \param c The client.
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* \return The client node focus.
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*/
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static client_node_t *
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focus_get_node_by_client(client_t *c)
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{
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client_node_t *node;
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for(node = globalconf.focus; node; node = node->next)
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if(node->client == c)
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return node;
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return NULL;
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}
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/** Create a client node for focus.
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* \param c The client
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* \return The client focus node.
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*/
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static client_node_t *
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focus_client_add(client_t *c)
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{
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client_node_t *node;
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/* if we don't find this node, create a new one */
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if(!(node = focus_get_node_by_client(c)))
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{
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node = p_new(client_node_t, 1);
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node->client = c;
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}
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else /* if we've got a node, detach it */
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client_node_list_detach(&globalconf.focus, node);
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return node;
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}
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/** Push the client at the beginning of the client focus history stack.
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* \param c The client to push.
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*/
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void
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focus_client_push(client_t *c)
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{
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client_node_t *node = focus_client_add(c);
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client_node_list_push(&globalconf.focus, node);
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}
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/** Append the client at the end of the client focus history stack.
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* \param c The client to append.
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*/
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void
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focus_client_append(client_t *c)
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{
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client_node_t *node = focus_client_add(c);
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client_node_list_append(&globalconf.focus, node);
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}
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/** Remove a client from focus history.
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* \param c The client.
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*/
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void
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focus_client_delete(client_t *c)
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{
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client_node_t *node = focus_get_node_by_client(c);
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if(node)
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{
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client_node_list_detach(&globalconf.focus, node);
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p_delete(&node);
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}
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}
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static client_t *
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focus_get_latest_client_for_tags(tag_t **t, int nindex)
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{
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client_node_t *node;
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tag_t **tags;
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int i = 0;
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for(node = globalconf.focus; node; node = node->next)
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if(node->client && !node->client->skip)
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for(tags = t; *tags; tags++)
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if(is_client_tagged(node->client, *tags))
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{
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if(i == nindex)
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return node->client;
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else
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i--;
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}
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return NULL;
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}
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/** Get the latest focused client on a screen.
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* \param screen The virtual screen number.
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* \return A pointer to an existing client.
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*/
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client_t *
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focus_get_current_client(int screen)
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{
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tag_t **curtags = tags_get_current(screen);
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client_t *sel = focus_get_latest_client_for_tags(curtags, 0);
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p_delete(&curtags);
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return sel;
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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