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awesome/tag.c

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/*
* tag.c - tag management
*
* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdio.h>
#include <X11/Xutil.h>
#include "screen.h"
#include "tag.h"
#include "rules.h"
#include "client.h"
#include "ewmh.h"
#include "widget.h"
extern AwesomeConf globalconf;
/** Create a new tag. Parameteres values are checked.
* \param name tag name
* \param layout layout to use
* \param mwfact master width factor
* \param nmaster number of master windows
* \param ncol number of columns for slaves windows
* \return a new tag with all these parameters
*/
Tag *
tag_new(const char *name, Layout *layout, double mwfact, int nmaster, int ncol)
{
Tag *tag;
tag = p_new(Tag, 1);
tag->name = a_strdup(name);
tag->layout = layout;
tag->mwfact = mwfact;
if(tag->mwfact <= 0 || tag->mwfact >= 1)
tag->mwfact = 1.0 / 1.618; /* Reverse of the golden ratio */
if((tag->nmaster = nmaster) < 0)
tag->nmaster = 1;
if((tag->ncol = ncol) < 1)
tag->ncol = 1;
return tag;
}
/** Append a tag to a screen.
* \param tag the tag to append
* \param screen the screen id
*/
void
tag_append_to_screen(Tag *tag, int screen)
{
int phys_screen = screen_virttophys(screen);
tag->screen = screen;
tag_list_append(&globalconf.screens[screen].tags, tag);
ewmh_update_net_numbers_of_desktop(phys_screen);
ewmh_update_net_desktop_names(phys_screen);
widget_invalidate_cache(screen, WIDGET_CACHE_TAGS);
}
/** Push a tag to a screen tag list.
* \param tag the tag to push
* \param screen the screen
*/
void
tag_push_to_screen(Tag *tag, int screen)
{
tag->screen = screen;
tag_list_push(&globalconf.screens[screen].tags, tag);
widget_invalidate_cache(screen, WIDGET_CACHE_TAGS);
}
/** Tag a client with specified tag.
* \param c the client to tag
* \param t the tag to tag the client with
*/
void
tag_client(Client *c, Tag *t)
{
tag_client_node_t *tc;
/* don't tag twice */
if(is_client_tagged(c, t))
return;
tc = p_new(tag_client_node_t, 1);
tc->client = c;
tc->tag = t;
tag_client_node_list_push(&globalconf.tclink, tc);
client_saveprops(c);
widget_invalidate_cache(c->screen, WIDGET_CACHE_CLIENTS);
globalconf.screens[c->screen].need_arrange = True;
}
/** Untag a client with specified tag.
* \param c the client to tag
* \param t the tag to tag the client with
*/
void
untag_client(Client *c, Tag *t)
{
tag_client_node_t *tc;
for(tc = globalconf.tclink; tc; tc = tc->next)
if(tc->client == c && tc->tag == t)
{
tag_client_node_list_detach(&globalconf.tclink, tc);
p_delete(&tc);
client_saveprops(c);
widget_invalidate_cache(c->screen, WIDGET_CACHE_CLIENTS);
globalconf.screens[c->screen].need_arrange = True;
break;
}
}
/** Check if a client is tagged with the specified tag.
* \param c the client
* \param t the tag
* \return true if the client is tagged with the tag, false otherwise.
*/
Bool
is_client_tagged(Client *c, Tag *t)
{
tag_client_node_t *tc;
if(!c)
return False;
for(tc = globalconf.tclink; tc; tc = tc->next)
if(tc->client == c && tc->tag == t)
return True;
return False;
}
/** Tag the client with the currently selected (visible) tags.
* \param c the client
*/
void
tag_client_with_current_selected(Client *c)
{
Tag *tag;
VirtScreen vscreen = globalconf.screens[c->screen];
for(tag = vscreen.tags; tag; tag = tag->next)
if(tag->selected)
tag_client(c, tag);
else
untag_client(c, tag);
}
/** Tag the client according to a rule.
* \param c the client
* \param r the rule
*/
void
tag_client_with_rule(Client *c, Rule *r)
{
Tag *tag;
Bool matched = False;
if(!r) return;
/* check if at least one tag match */
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
if(tag_match_rule(tag, r))
{
matched = True;
break;
}
if(matched)
for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
if(tag_match_rule(tag, r))
tag_client(c, tag);
else
untag_client(c, tag);
}
/** Get the current tags for the specified screen.
* Returned pointer must be p_delete'd after.
* \param screen screen id
* \return a double pointer of tag list finished with a NULL element
*/
Tag **
tags_get_current(int screen)
{
Tag *tag, **tags = NULL;
int n = 1;
tags = p_new(Tag *, n);
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
if(tag->selected)
{
p_realloc(&tags, ++n);
tags[n - 2] = tag;
}
/* finish with null */
tags[n - 1] = NULL;
return tags;
}
/** Tag the focused client with the given tag.
* \param screen Screen ID
* \param arg Tag name
* \ingroup ui_callback
*/
void
uicb_client_tag(int screen, char *arg)
{
int tag_id = -1;
Tag *tag, *target_tag;
Client *sel = globalconf.focus->client;
if(!sel)
return;
if(arg)
{
tag_id = atoi(arg) - 1;
if(tag_id != -1)
{
for(target_tag = globalconf.screens[screen].tags; target_tag && tag_id > 0;
target_tag = target_tag->next, tag_id--);
if(target_tag)
{
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
untag_client(sel, tag);
tag_client(sel, target_tag);
}
}
}
else
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
tag_client(sel, tag);
}
/** Toggle a tag on the focused client.
* \param screen virtual screen id
* \param arg tag number
* \ingroup ui_callback
*/
void
uicb_client_toggletag(int screen, char *arg)
{
Client *sel = globalconf.focus->client;
int i;
Bool is_sticky = True;
Tag *tag, *target_tag;
if(!sel)
return;
if(arg)
{
i = atoi(arg) - 1;
for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
target_tag = target_tag->next, i--);
if(target_tag)
{
if(is_client_tagged(sel, target_tag))
untag_client(sel, target_tag);
else
tag_client(sel, target_tag);
}
/* check that there's at least one tag selected for this client*/
for(tag = globalconf.screens[screen].tags; tag
&& !is_client_tagged(sel, tag); tag = tag->next);
if(!tag)
tag_client(sel, target_tag);
}
else
{
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
if(!is_client_tagged(sel, tag))
{
is_sticky = False;
tag_client(sel, tag);
}
if(is_sticky)
tag_client_with_current_selected(sel);
}
}
/** Toggle the visibility of a tag.
* \param screen Screen ID
* \param arg Tag name
* \ingroup ui_callback
*/
void
uicb_tag_toggleview(int screen, char *arg)
{
int i;
Tag *tag, *target_tag,
**backtag, **curtags = tags_get_current(screen);
if(arg)
{
i = atoi(arg) - 1;
for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
target_tag = target_tag->next, i--);
if(target_tag)
tag_view(target_tag, !target_tag->selected);
}
else
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
tag_view(tag, !tag->selected);
/* check that there's at least one tag selected */
for(tag = globalconf.screens[screen].tags; tag && !tag->selected; tag = tag->next);
if(!tag)
for(backtag = curtags; *backtag; backtag++)
tag_view(*backtag, True);
p_delete(&curtags);
}
/** Set a tag to be the only one viewed.
* \param target the tag to see
*/
static void
tag_view_only(Tag *target)
{
Tag *tag;
if(!target) return;
for(tag = globalconf.screens[target->screen].tags; tag; tag = tag->next)
tag_view(tag, tag == target);
}
/** Use an index to set a tag viewable.
* \param screen the screen id
* \param dindex the index
* \param view the view value
*/
void
tag_view_byindex(int screen, int dindex, Bool view)
{
Tag *tag;
if(dindex < 0)
return;
for(tag = globalconf.screens[screen].tags; tag && dindex > 0;
tag = tag->next, dindex--);
tag_view(tag, view);
}
/** View only a tag, selected by its index.
* \param screen screen id
* \param dindex the index
*/
void
tag_view_only_byindex(int screen, int dindex)
{
Tag *tag;
if(dindex < 0)
return;
for(tag = globalconf.screens[screen].tags; tag && dindex > 0;
tag = tag->next, dindex--);
tag_view_only(tag);
}
/** View or unview a tag.
* \param tag the tag
* \param view set visible or not
*/
void
tag_view(Tag *tag, Bool view)
{
tag->was_selected = tag->selected;
tag->selected = view;
ewmh_update_net_current_desktop(screen_virttophys(tag->screen));
widget_invalidate_cache(tag->screen, WIDGET_CACHE_TAGS);
globalconf.screens[tag->screen].need_arrange = True;
client_focus(NULL, tag->screen, True);
}
/** View only this tag.
* \param screen Screen ID
* \param arg tag to view
* \ingroup ui_callback
*/
void
uicb_tag_view(int screen, char *arg)
{
Tag *tag;
if(arg)
tag_view_only_byindex(screen, atoi(arg) - 1);
else
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
tag_view(tag, True);
}
/** View the previously selected tags.
* \param screen Screen ID
* \param arg unused
* \ingroup ui_callback
*/
void
uicb_tag_prev_selected(int screen, char *arg __attribute__ ((unused)))
{
Tag *tag;
for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
tag_view(tag, tag->was_selected);
}
/** View the next tag.
* \param screen Screen ID
* \param arg unused
* \ingroup ui_callback
*/
void
uicb_tag_viewnext(int screen, char *arg __attribute__ ((unused)))
{
Tag *tag, **curtags = tags_get_current(screen);
tag = tag_list_next_cycle(&globalconf.screens[screen].tags, curtags[0]);
tag_view(curtags[0], False);
tag_view(tag, True);
p_delete(&curtags);
}
/** View the previous tag.
* \param screen Screen ID
* \param arg unused
* \ingroup ui_callback
*/
void
uicb_tag_viewprev(int screen, char *arg __attribute__ ((unused)))
{
Tag *tag, **curtags = tags_get_current(screen);
tag = tag_list_prev_cycle(&globalconf.screens[screen].tags, curtags[0]);
tag_view(curtags[0], False);
tag_view(tag, True);
p_delete(&curtags);
}
/** Create a new tag. Argument must be the tag name.
* \param screen the screen id
* \param arg the tag name
*/
void
uicb_tag_create(int screen, char *arg)
{
Tag *tag;
if(!a_strlen(arg))
return;
tag = tag_new(arg, globalconf.screens[screen].layouts, 0.618, 1, 1);
tag_append_to_screen(tag, screen);
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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