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.*",  { [Twww] = "www" },                     False },
  25         { "Gimp.*",             { 0 },                                          True},
  26 };
  27
  28 /* extern */
  29
  30 /* CUSTOMIZE */
  31 char *tags[TLast] = {
  32         [Tscratch] = "scratch",
  33         [Tdev] = "dev",
  34         [Twww] = "www",
  35         [Twork] = "work",
  36 };
  37 void (*arrange)(Arg *) = dotile;
  38
  39 void
  40 appendtag(Arg *arg)
  41 {
  42         if(!sel)
  43                 return;
  44
  45         sel->tags[arg->i] = tags[arg->i];
  46         arrange(NULL);
  47 }
  48
  49 void
  50 dofloat(Arg *arg)
  51 {
  52         Client *c;
  53
  54         arrange = dofloat;
  55         for(c = clients; c; c = c->next) {
  56                 if(c->tags[tsel]) {
  57                         resize(c, True, TopLeft);
  58                 }
  59                 else
  60                         ban(c);
  61         }
  62         if(sel && !sel->tags[tsel]) {
  63                 if((sel = getnext(clients, tsel))) {
  64                         higher(sel);
  65                         focus(sel);
  66                 }
  67         }
  68         drawall();
  69 }
  70
  71 void
  72 dotile(Arg *arg)
  73 {
  74         Client *c;
  75         int n, i, w, h;
  76
  77         w = sw - mw;
  78         arrange = dotile;
  79         for(n = 0, c = clients; c; c = c->next)
  80                 if(c->tags[tsel] && !c->isfloat)
  81                         n++;
  82
  83         if(n > 1)
  84                 h = (sh - bh) / (n - 1);
  85         else
  86                 h = sh - bh;
  87
  88         for(i = 0, c = clients; c; c = c->next) {
  89                 if(c->tags[tsel]) {
  90                         if(c->isfloat) {
  91                                 higher(c);
  92                                 resize(c, True, TopLeft);
  93                                 continue;
  94                         }
  95                         if(n == 1) {
  96                                 c->x = sx;
  97                                 c->y = sy + bh;
  98                                 c->w = sw - 2 * c->border;
  99                                 c->h = sh - 2 * c->border - bh;
 100                         }
 101                         else if(i == 0) {
 102                                 c->x = sx;
 103                                 c->y = sy + bh;
 104                                 c->w = mw - 2 * c->border;
 105                                 c->h = sh - 2 * c->border - bh;
 106                         }
 107                         else if(h > bh) {
 108                                 c->x = sx + mw;
 109                                 c->y = sy + (i - 1) * h + bh;
 110                                 c->w = w - 2 * c->border;
 111                                 c->h = h - 2 * c->border;
 112                         }
 113                         else { /* fallback if h < bh */
 114                                 c->x = sx + mw;
 115                                 c->y = sy + bh;
 116                                 c->w = w - 2 * c->border;
 117                                 c->h = sh - 2 * c->border - bh;
 118                         }
 119                         resize(c, False, TopLeft);
 120                         i++;
 121                 }
 122                 else
 123                         ban(c);
 124         }
 125         if(!sel || (sel && !sel->tags[tsel])) {
 126                 if((sel = getnext(clients, tsel))) {
 127                         higher(sel);
 128                         focus(sel);
 129                 }
 130         }
 131         drawall();
 132 }
 133
 134 Client *
 135 getnext(Client *c, unsigned int t)
 136 {
 137         for(; c && !c->tags[t]; c = c->next);
 138         return c;
 139 }
 140
 141 void
 142 heretag(Arg *arg)
 143 {
 144         int i;
 145         Client *c;
 146
 147         if(arg->i == tsel)
 148                 return;
 149
 150         if(!(c = getnext(clients, arg->i)))
 151                 return;
 152
 153         for(i = 0; i < TLast; i++)
 154                 c->tags[i] = NULL;
 155         c->tags[tsel] = tags[tsel];
 156         pop(c);
 157         focus(c);
 158 }
 159
 160 void
 161 replacetag(Arg *arg)
 162 {
 163         int i;
 164         if(!sel)
 165                 return;
 166
 167         for(i = 0; i < TLast; i++)
 168                 sel->tags[i] = NULL;
 169         appendtag(arg);
 170 }
 171
 172 void
 173 settags(Client *c)
 174 {
 175         char classinst[256];
 176         static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
 177         unsigned int i, j;
 178         regex_t regex;
 179         regmatch_t tmp;
 180         Bool matched = False;
 181         XClassHint ch;
 182
 183         if(!len) {
 184                 c->tags[tsel] = tags[tsel];
 185                 return;
 186         }
 187
 188         if(XGetClassHint(dpy, c->win, &ch)) {
 189                 snprintf(classinst, sizeof(classinst), "%s:%s",
 190                                 ch.res_class ? ch.res_class : "",
 191                                 ch.res_name ? ch.res_name : "");
 192                 for(i = 0; !matched && i < len; i++) {
 193                         if(!regcomp(&regex, rule[i].pattern, 0)) {
 194                                 if(!regexec(&regex, classinst, 1, &tmp, 0)) {
 195                                         for(j = 0; j < TLast; j++) {
 196                                                 if(rule[i].tags[j])
 197                                                         matched = True;
 198                                                 c->tags[j] = rule[i].tags[j];
 199                                         }
 200                                         c->isfloat = rule[i].isfloat;
 201                                 }
 202                                 regfree(&regex);
 203                         }
 204                 }
 205                 if(ch.res_class)
 206                         XFree(ch.res_class);
 207                 if(ch.res_name)
 208                         XFree(ch.res_name);
 209         }
 210         if(!matched)
 211                 c->tags[tsel] = tags[tsel];
 212 }
 213
 214 void
 215 view(Arg *arg)
 216 {
 217         tsel = arg->i;
 218         arrange(NULL);
 219         drawall();
 220 }