tag.c

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