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             switch(r->isfloating)
 125             {
 126               case Tile:
 127                 c->isfloating = False;
 128                 break;
 129               case Float:
 130                 c->isfloating = True;
 131                 break;
 132               default:
 133                 break;
 134             }
 135
 136             if(r->screen != RULE_NOSCREEN && r->screen != c->screen)
 137                 move_client_to_screen(c, r->screen, True);
 138
 139             for(tag = globalconf.screens[c->screen].tags; tag; tag = tag->next)
 140                 if(is_tag_match_rules(tag, r))
 141                 {
 142                     matched = True;
 143                     tag_client(c, tag);
 144                 }
 145                 else
 146                     untag_client(c, tag);
 147
 148             if(!matched)
 149                 tag_client_with_current_selected(c);
 150             break;
 151         }
 152 }
 153
 154
 155 Tag **
 156 get_current_tags(int screen)
 157 {
 158     Tag *tag, **tags = NULL;
 159     int n = 1;
 160
 161     tags = p_new(Tag *, n);
 162     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 163         if(tag->selected)
 164         {
 165             p_realloc(&tags, ++n);
 166             tags[n - 2] = tag;
 167         }
 168
 169     /* finish with null */
 170     tags[n - 1] = NULL;
 171
 172     return tags;
 173 }
 174
 175 /** Tag selected window with tag
 176  * \param screen Screen ID
 177  * \param arg Tag name
 178  * \ingroup ui_callback
 179  */
 180 void
 181 uicb_client_tag(int screen, char *arg)
 182 {
 183     int tag_id = -1;
 184     Tag *tag, *target_tag;
 185     Client *sel = globalconf.focus->client;
 186
 187     if(!sel)
 188         return;
 189
 190     if(arg)
 191     {
 192         tag_id = atoi(arg) - 1;
 193         if(tag_id != -1)
 194         {
 195             for(target_tag = globalconf.screens[screen].tags; target_tag && tag_id > 0;
 196                 target_tag = target_tag->next, tag_id--);
 197             if(target_tag)
 198             {
 199                 for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 200                     untag_client(sel, tag);
 201                 tag_client(sel, target_tag);
 202             }
 203         }
 204     }
 205     else
 206         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 207             tag_client(sel, tag);
 208
 209     client_saveprops(sel);
 210     arrange(screen);
 211 }
 212
 213 /** Toggle a tag on client
 214  * \param screen Screen ID
 215  * \param arg Tag name
 216  * \ingroup ui_callback
 217  */
 218 void
 219 uicb_client_toggletag(int screen, char *arg)
 220 {
 221     Client *sel = globalconf.focus->client;
 222     int i;
 223     Tag *tag, *target_tag;
 224
 225     if(!sel)
 226         return;
 227
 228     if(arg)
 229     {
 230         i = atoi(arg) - 1;
 231         for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
 232             target_tag = target_tag->next, i--);
 233         if(target_tag)
 234         {
 235             if(is_client_tagged(sel, target_tag))
 236                 untag_client(sel, target_tag);
 237             else
 238                 tag_client(sel, target_tag);
 239         }
 240
 241         /* check that there's at least one tag selected for this client*/
 242         for(tag = globalconf.screens[screen].tags; tag
 243             && !is_client_tagged(sel, tag); tag = tag->next)
 244
 245         if(!tag)
 246             tag_client(sel, target_tag);
 247     }
 248     else
 249         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 250             if(is_client_tagged(sel, tag))
 251                 tag_client(sel, tag);
 252             else
 253                 untag_client(sel, tag);
 254
 255     client_saveprops(sel);
 256     arrange(screen);
 257 }
 258
 259 /** Add a tag to viewed tags
 260  * \param screen Screen ID
 261  * \param arg Tag name
 262  * \ingroup ui_callback
 263  */
 264 void
 265 uicb_tag_toggleview(int screen, char *arg)
 266 {
 267     int i;
 268     Tag *tag, *target_tag;
 269
 270     if(arg)
 271     {
 272         i = atoi(arg) - 1;
 273         for(target_tag = globalconf.screens[screen].tags; target_tag && i > 0;
 274             target_tag = target_tag->next, i--);
 275
 276         if(target_tag)
 277             target_tag->selected = !target_tag->selected;
 278
 279         /* check that there's at least one tag selected */
 280         for(tag = globalconf.screens[screen].tags; tag && !tag->selected; tag = tag->next);
 281         if(!tag)
 282             target_tag->selected = True;
 283     }
 284     else
 285         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 286             tag->selected = !tag->selected;
 287
 288     saveawesomeprops(screen);
 289     arrange(screen);
 290     ewmh_update_net_current_desktop(get_phys_screen(screen));
 291 }
 292
 293 void
 294 tag_view(int screen, int dindex)
 295 {
 296     Tag *target_tag, *tag;
 297
 298     if(dindex < 0)
 299         return;
 300
 301     for(target_tag = globalconf.screens[screen].tags; target_tag && dindex > 0;
 302         target_tag = target_tag->next, dindex--);
 303     if(target_tag)
 304     {
 305         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 306             tag->selected = False;
 307         target_tag->selected = True;
 308     }
 309     saveawesomeprops(screen);
 310     arrange(screen);
 311     ewmh_update_net_current_desktop(get_phys_screen(screen));
 312 }
 313
 314 /** View tag
 315  * \param screen Screen ID
 316  * \param arg tag to view
 317  * \ingroup ui_callback
 318  */
 319 void
 320 uicb_tag_view(int screen, char *arg)
 321 {
 322     Tag *tag;
 323
 324     if(arg)
 325         tag_view(screen, atoi(arg) - 1);
 326     else
 327     {
 328         for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 329             tag->selected = True;
 330         saveawesomeprops(screen);
 331         arrange(screen);
 332         ewmh_update_net_current_desktop(get_phys_screen(screen));
 333     }
 334 }
 335
 336 /** View previously selected tags
 337  * \param screen Screen ID
 338  * \param arg unused
 339  * \ingroup ui_callback
 340  */
 341 void
 342 uicb_tag_prev_selected(int screen, char *arg __attribute__ ((unused)))
 343 {
 344     Tag *tag;
 345     Bool t;
 346
 347     for(tag =  globalconf.screens[screen].tags; tag; tag = tag->next)
 348     {
 349         t = tag->selected;
 350         tag->selected = tag->was_selected;
 351         tag->was_selected = t;
 352     }
 353     arrange(screen);
 354     ewmh_update_net_current_desktop(get_phys_screen(screen));
 355 }
 356
 357 /** View next tag
 358  * \param screen Screen ID
 359  * \param arg unused
 360  * \ingroup ui_callback
 361  */
 362 void
 363 uicb_tag_viewnext(int screen, char *arg __attribute__ ((unused)))
 364 {
 365     Tag **curtags = get_current_tags(screen);
 366
 367     if(!curtags[0]->next)
 368         return;
 369
 370     curtags[0]->selected = False;
 371     curtags[0]->next->selected = True;
 372
 373     p_delete(&curtags);
 374
 375     saveawesomeprops(screen);
 376     arrange(screen);
 377     ewmh_update_net_current_desktop(get_phys_screen(screen));
 378 }
 379
 380 /** View previous tag
 381  * \param screen Screen ID
 382  * \param arg unused
 383  * \ingroup ui_callback
 384  */
 385 void
 386 uicb_tag_viewprev(int screen, char *arg __attribute__ ((unused)))
 387 {
 388     Tag *tag, **curtags = get_current_tags(screen);
 389
 390     for(tag = globalconf.screens[screen].tags; tag && tag->next != curtags[0]; tag = tag->next);
 391     if(tag)
 392     {
 393         tag->selected = True;
 394         curtags[0]->selected = False;
 395         saveawesomeprops(screen);
 396         arrange(screen);
 397     }
 398     p_delete(&curtags);
 399     ewmh_update_net_current_desktop(get_phys_screen(screen));
 400 }
 401
 402 void
 403 uicb_tag_create(int screen, char *arg)
 404 {
 405     Tag *last_tag, *tag;
 406
 407     if(!a_strlen(arg))
 408         return;
 409
 410     for(last_tag = globalconf.screens[screen].tags; last_tag && last_tag->next; last_tag = last_tag->next);
 411     last_tag->next = tag = p_new(Tag, 1);
 412     tag->name = a_strdup(arg);
 413     tag->layout = globalconf.screens[screen].layouts;
 414     tag->mwfact = 0.5;
 415     tag->nmaster = 1;
 416     tag->ncol = 1;
 417 }
 418
 419 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80