tag.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6
   7 #include <regex.h>
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <X11/Xutil.h>
  12
  13 /* static */
  14
  15 typedef struct {
  16         const char *pattern;
  17         char *tags[TLast];
  18         Bool isfloat;
  19 } Rule;
  20
  21 /* CUSTOMIZE */
  22 static Rule rule[] = {
  23         /* class:instance       tags                            isfloat */
  24         { "Firefox.*",          { [Tnet] = "net" },             False },
  25         { "Gimp.*",             { 0 },                          True},
  26 };
  27
  28 char *tags[TLast] = {
  29         [Tfnord] = "fnord",
  30         [Tdev] = "dev",
  31         [Tnet] = "net",
  32         [Twork] = "work",
  33         [Tmisc] = "misc",
  34 };
  35
  36 void (*arrange)(Arg *) = dotile;
  37
  38 /* END CUSTOMIZE */
  39
  40 /* extern */
  41
  42 void
  43 appendtag(Arg *arg)
  44 {
  45         if(!sel)
  46                 return;
  47
  48         sel->tags[arg->i] = tags[arg->i];
  49         arrange(NULL);
  50 }
  51
  52 void
  53 dofloat(Arg *arg)
  54 {
  55         Client *c;
  56
  57         for(c = clients; c; c = c->next) {
  58                 c->ismax = False;
  59                 if(c->tags[tsel]) {
  60                         resize(c, True, TopLeft);
  61                 }
  62                 else
  63                         ban(c);
  64         }
  65         if(sel && !sel->tags[tsel]) {
  66                 if((sel = getnext(clients, tsel))) {
  67                         higher(sel);
  68                         focus(sel);
  69                 }
  70         }
  71         drawall();
  72 }
  73
  74 void
  75 dotile(Arg *arg)
  76 {
  77         int n, i, w, h;
  78         Client *c;
  79
  80         w = sw - mw;
  81         for(n = 0, c = clients; c; c = c->next)
  82                 if(c->tags[tsel] && !c->isfloat)
  83                         n++;
  84
  85         if(n > 1)
  86                 h = (sh - bh) / (n - 1);
  87         else
  88                 h = sh - bh;
  89
  90         for(i = 0, c = clients; c; c = c->next) {
  91                 c->ismax = False;
  92                 if(c->tags[tsel]) {
  93                         if(c->isfloat) {
  94                                 higher(c);
  95                                 resize(c, True, TopLeft);
  96                                 continue;
  97                         }
  98                         if(n == 1) {
  99                                 c->x = sx;
 100                                 c->y = sy + bh;
 101                                 c->w = sw - 2 * c->border;
 102                                 c->h = sh - 2 * c->border - bh;
 103                         }
 104                         else if(i == 0) {
 105                                 c->x = sx;
 106                                 c->y = sy + bh;
 107                                 c->w = mw - 2 * c->border;
 108                                 c->h = sh - 2 * c->border - bh;
 109                         }
 110                         else if(h > bh) {
 111                                 c->x = sx + mw;
 112                                 c->y = sy + (i - 1) * h + bh;
 113                                 c->w = w - 2 * c->border;
 114                                 c->h = h - 2 * c->border;
 115                         }
 116                         else { /* fallback if h < bh */
 117                                 c->x = sx + mw;
 118                                 c->y = sy + bh;
 119                                 c->w = w - 2 * c->border;
 120                                 c->h = sh - 2 * c->border - bh;
 121                         }
 122                         resize(c, False, TopLeft);
 123                         i++;
 124                 }
 125                 else
 126                         ban(c);
 127         }
 128         if(!sel || (sel && !sel->tags[tsel])) {
 129                 if((sel = getnext(clients, tsel))) {
 130                         higher(sel);
 131                         focus(sel);
 132                 }
 133         }
 134         drawall();
 135 }
 136
 137 Client *
 138 getnext(Client *c, unsigned int t)
 139 {
 140         for(; c && !c->tags[t]; c = c->next);
 141         return c;
 142 }
 143
 144 Client *
 145 getprev(Client *c)
 146 {
 147         for(; c && !c->tags[tsel]; c = c->prev);
 148         return c;
 149 }
 150
 151 void
 152 replacetag(Arg *arg)
 153 {
 154         int i;
 155
 156         if(!sel)
 157                 return;
 158
 159         for(i = 0; i < TLast; i++)
 160                 sel->tags[i] = NULL;
 161         appendtag(arg);
 162 }
 163
 164 void
 165 settags(Client *c)
 166 {
 167         char classinst[256];
 168         static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
 169         unsigned int i, j;
 170         regex_t regex;
 171         regmatch_t tmp;
 172         Bool matched = False;
 173         XClassHint ch;
 174
 175         if(!len) {
 176                 c->tags[tsel] = tags[tsel];
 177                 return;
 178         }
 179
 180         if(XGetClassHint(dpy, c->win, &ch)) {
 181                 snprintf(classinst, sizeof(classinst), "%s:%s",
 182                                 ch.res_class ? ch.res_class : "",
 183                                 ch.res_name ? ch.res_name : "");
 184                 for(i = 0; !matched && i < len; i++) {
 185                         if(!regcomp(&regex, rule[i].pattern, 0)) {
 186                                 if(!regexec(&regex, classinst, 1, &tmp, 0)) {
 187                                         for(j = 0; j < TLast; j++) {
 188                                                 if(rule[i].tags[j])
 189                                                         matched = True;
 190                                                 c->tags[j] = rule[i].tags[j];
 191                                         }
 192                                         c->isfloat = rule[i].isfloat;
 193                                 }
 194                                 regfree(&regex);
 195                         }
 196                 }
 197                 if(ch.res_class)
 198                         XFree(ch.res_class);
 199                 if(ch.res_name)
 200                         XFree(ch.res_name);
 201         }
 202         if(!matched)
 203                 c->tags[tsel] = tags[tsel];
 204 }
 205
 206 void
 207 togglemode(Arg *arg)
 208 {
 209         arrange = arrange == dofloat ? dotile : dofloat;
 210         arrange(NULL);
 211 }
 212
 213 void
 214 view(Arg *arg)
 215 {
 216         tsel = arg->i;
 217         arrange(NULL);
 218         drawall();
 219 }