tag.c

   1 /*
   2  * tag.c - tag management
   3  *
   4  * Copyright © 2007 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 <stdio.h>
  23 #include <X11/Xutil.h>
  24
  25 #include "screen.h"
  26 #include "tag.h"
  27 #include "util.h"
  28 #include "rules.h"
  29 #include "client.h"
  30 #include "ewmh.h"
  31
  32 extern AwesomeConf globalconf;
  33
  34 static void
  35 detach_tagclientlink(TagClientLink *tc)
  36 {
  37     TagClientLink *tmp;
  38
  39     if(globalconf.tclink == tc)
  40         globalconf.tclink = tc->next;
  41     else
  42     {
  43         for(tmp = globalconf.tclink; tmp && tmp->next != tc; tmp = tmp->next);
  44         tmp->next = tc->next;
  45     }
  46
  47     p_delete(&tc);
  48 }
  49
  50 void
  51 tag_client(Client *c, Tag *t)
  52 {
  53     TagClientLink *tc, *new_tc;
  54
  55     /* don't tag twice */
  56     if(is_client_tagged(c, t))
  57         return;
  58
  59     new_tc = p_new(TagClientLink, 1);
  60
  61     if(!globalconf.tclink)
  62         globalconf.tclink = new_tc;
  63     else
  64     {
  65         for(tc = globalconf.tclink; tc->next; tc = tc->next);
  66         tc->next = new_tc;
  67     }
  68
  69     new_tc->client = c;
  70     new_tc->tag = t;
  71 }
  72
  73 void
  74 untag_client(Client *c, Tag *t)
  75 {
  76     TagClientLink *tc;
  77
  78     for(tc = globalconf.tclink; tc; tc = tc->next)
  79         if(tc->client == c && tc->tag == t)
  80         {
  81             detach_tagclientlink(tc);
  82             break;
  83         }
  84 }
  85
  86 Bool
  87 is_client_tagged(Client *c, Tag *t)
  88 {
  89     TagClientLink *tc;
  90
  91     if(!c)
  92         return False;
  93
  94     for(tc = globalconf.tclink; tc; tc = tc->next)
  95         if(tc->client == c && tc->tag == t)
  96             return True;
  97
  98     return False;
  99 }
 100
 101 void
 102 tag_client_with_current_selected(Client *c)
 103 {
 104     Tag *tag;
 105     VirtScreen vscreen = globalconf.screens[c->screen];
 106
 107     for(tag = vscreen.tags; tag; tag = tag->next)
 108         if(tag->selected)
 109             tag_client(c, tag);
 110         else
 111             untag_client(c, tag);
 112 }
 113
 114 void
 115 tag_client_with_rules(Client *c)
 116 {
 117     Rule *r;
 118     Tag *tag;
 119     Bool matched = False;
 120
 121     for(r = globalconf.rules; r; r = r->next)
 122         if(client_match_rule(c, r))
 123         {
 124             c->isfloating = r->isfloating;
 125
 126             if(r->screen != RULE_NOSCREEN && r->screen != c->screen)
 127                 move_client_to_screen(c, r->screen, True);
 128
 129             for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
 130                 if(is_tag_match_rules(tag, r))
 131                 {
 132                     matched = True;
 133                     tag_client(c, tag);
 134                 }
 135                 else
 136                     untag_client(c, tag);
 137
 138             if(!matched)
 139                 tag_client_with_current_selected(c);
 140             break;
 141         }
 142 }
 143
 144
 145 Tag **
 146 get_current_tags(int screen)
 147 {
 148     Tag *tag, **tags = NULL;
 149     int n = 1;
 150
 151     tags = p_new(Tag *, n);
 152     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 153         if(tag->selected)
 154         {
 155             p_realloc(&tags, ++n);
 156             tags[n - 2] = tag;
 157         }
 158
 159     /* finish with null */
 160     tags[n - 1] = NULL;
 161
 162     return tags;
 163 }
 164
 165 /** Tag selected window with tag
 166  * \param screen Screen ID
 167  * \param arg Tag name
 168  * \ingroup ui_callback
 169  */
 170 void
 171 uicb_client_tag(int screen, char *arg)
 172 {
 173     int tag_id = -1;
 174     Tag *tag, *target_tag;
 175     Client *sel = globalconf.focus->client;
 176
 177     if(!sel)
 178         return;
 179
 180     if(arg)
 181     {
 182         tag_id = atoi(arg) - 1;
 183         if(tag_id != -1)
 184         {
 185             for(target_tag = globalconf.screens[screen].tags; target_tag && tag_id > 0;
 186                 target_tag = target_tag->next, tag_id--);
 187             if(target_tag)
 188             {
 189                 for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 190                     untag_client(sel, tag);
 191                 tag_client(sel, target_tag);
 192             }
 193         }
 194     }
 195     else
 196         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 197             tag_client(sel, tag);
 198
 199     client_saveprops(sel);
 200     arrange(screen);
 201 }
 202
 203 /** Toggle floating state of a client
 204  * \param screen Screen ID
 205  * \param arg unused
 206  * \ingroup ui_callback
 207  */
 208 void
 209 uicb_client_togglefloating(int screen, char *arg __attribute__((unused)))
 210 {
 211     Client *sel = globalconf.focus->client;
 212
 213     if(!sel)
 214         return;
 215
 216     if((sel->isfloating = !sel->isfloating))
 217         client_resize(sel, sel->f_geometry, True);
 218
 219     client_saveprops(sel);
 220     arrange(screen);
 221 }
 222
 223 /** Toggle a tag on client
 224  * \param screen Screen ID
 225  * \param arg Tag name
 226  * \ingroup ui_callback
 227  */
 228 void
 229 uicb_client_toggletag(int screen, char *arg)
 230 {
 231     Client *sel = globalconf.focus->client;
 232     int i;
 233     Tag *tag, *target_tag;
 234
 235     if(!sel)
 236         return;
 237
 238     if(arg)
 239     {
 240         i = atoi(arg) - 1;
 241         for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
 242             target_tag = target_tag->next, i--);
 243         if(target_tag)
 244         {
 245             if(is_client_tagged(sel, target_tag))
 246                 untag_client(sel, target_tag);
 247             else
 248                 tag_client(sel, target_tag);
 249         }
 250
 251         /* check that there's at least one tag selected for this client*/
 252         for(tag = globalconf.screens[screen].tags; tag
 253             && !is_client_tagged(sel, tag); tag = tag->next)
 254
 255         if(!tag)
 256             tag_client(sel, target_tag);
 257     }
 258     else
 259         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 260             if(is_client_tagged(sel, tag))
 261                 tag_client(sel, tag);
 262             else
 263                 untag_client(sel, tag);
 264
 265     client_saveprops(sel);
 266     arrange(screen);
 267 }
 268
 269 /** Add a tag to viewed tags
 270  * \param screen Screen ID
 271  * \param arg Tag name
 272  * \ingroup ui_callback
 273  */
 274 void
 275 uicb_tag_toggleview(int screen, char *arg)
 276 {
 277     int i;
 278     Tag *tag, *target_tag;
 279
 280     if(arg)
 281     {
 282         i = atoi(arg) - 1;
 283         for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
 284             target_tag = target_tag->next, i--);
 285
 286         if(target_tag)
 287             target_tag->selected = !target_tag->selected;
 288
 289         /* check that there's at least one tag selected */
 290         for(tag = globalconf.screens[screen].tags; tag && !tag->selected; tag = tag->next);
 291         if(!tag)
 292             target_tag->selected = True;
 293     }
 294     else
 295         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 296             tag->selected = !tag->selected;
 297
 298     saveawesomeprops(screen);
 299     arrange(screen);
 300     ewmh_update_net_current_desktop(get_phys_screen(screen));
 301 }
 302
 303 void
 304 tag_view(int screen, int dindex)
 305 {
 306     Tag *target_tag, *tag;
 307
 308     if(dindex < 0)
 309         return;
 310
 311     for(target_tag = globalconf.screens[screen].tags; target_tag && dindex > 0;
 312         target_tag = target_tag->next, dindex--);
 313     if(target_tag)
 314     {
 315         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 316             tag->selected = False;
 317         target_tag->selected = True;
 318     }
 319     saveawesomeprops(screen);
 320     arrange(screen);
 321     ewmh_update_net_current_desktop(get_phys_screen(screen));
 322 }
 323
 324 /** View tag
 325  * \param screen Screen ID
 326  * \param arg tag to view
 327  * \ingroup ui_callback
 328  */
 329 void
 330 uicb_tag_view(int screen, char *arg)
 331 {
 332     Tag *tag;
 333
 334     if(arg)
 335         tag_view(screen, atoi(arg) - 1);
 336     else
 337     {
 338         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 339             tag->selected = True;
 340         saveawesomeprops(screen);
 341         arrange(screen);
 342         ewmh_update_net_current_desktop(get_phys_screen(screen));
 343     }
 344 }
 345
 346 /** View previously selected tags
 347  * \param screen Screen ID
 348  * \param arg unused
 349  * \ingroup ui_callback
 350  */
 351 void
 352 uicb_tag_prev_selected(int screen, char *arg __attribute__ ((unused)))
 353 {
 354     Tag *tag;
 355     Bool t;
 356
 357     for(tag =  globalconf.screens[screen].tags; tag; tag = tag->next)
 358     {
 359         t = tag->selected;
 360         tag->selected = tag->was_selected;
 361         tag->was_selected = t;
 362     }
 363     arrange(screen);
 364     ewmh_update_net_current_desktop(get_phys_screen(screen));
 365 }
 366
 367 /** View next tag
 368  * \param screen Screen ID
 369  * \param arg unused
 370  * \ingroup ui_callback
 371  */
 372 void
 373 uicb_tag_viewnext(int screen, char *arg __attribute__ ((unused)))
 374 {
 375     Tag **curtags = get_current_tags(screen);
 376
 377     if(!curtags[0]->next)
 378         return;
 379
 380     curtags[0]->selected = False;
 381     curtags[0]->next->selected = True;
 382
 383     p_delete(&curtags);
 384
 385     saveawesomeprops(screen);
 386     arrange(screen);
 387     ewmh_update_net_current_desktop(get_phys_screen(screen));
 388 }
 389
 390 /** View previous tag
 391  * \param screen Screen ID
 392  * \param arg unused
 393  * \ingroup ui_callback
 394  */
 395 void
 396 uicb_tag_viewprev(int screen, char *arg __attribute__ ((unused)))
 397 {
 398     Tag *tag, **curtags = get_current_tags(screen);
 399
 400     for(tag = globalconf.screens[screen].tags; tag && tag->next != curtags[0]; tag = tag->next);
 401     if(tag)
 402     {
 403         tag->selected = True;
 404         curtags[0]->selected = False;
 405         saveawesomeprops(screen);
 406         arrange(screen);
 407     }
 408     p_delete(&curtags);
 409     ewmh_update_net_current_desktop(get_phys_screen(screen));
 410 }
 411
 412 void
 413 uicb_tag_create(int screen, char *arg)
 414 {
 415     Tag *last_tag, *tag;
 416
 417     if(!a_strlen(arg))
 418         return;
 419
 420     for(last_tag = globalconf.screens[screen].tags; last_tag && last_tag->next; last_tag = last_tag->next);
 421     last_tag->next = tag = p_new(Tag, 1);
 422     tag->name = a_strdup(arg);
 423     tag->layout = globalconf.screens[screen].layouts;
 424     tag->mwfact = 0.5;
 425     tag->nmaster = 1;
 426     tag->ncol = 1;
 427 }
 428
 429 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80