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