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 char *tags[TLast] = {
  29         [Tscratch] = "scratch",
  30         [Tdev] = "dev",
  31         [Twww] = "www",
  32         [Twork] = "work",
  33 };
  34
  35 void (*arrange)(Arg *) = dotile;
  36
  37 /* END CUSTOMIZE */
  38
  39 /* extern */
  40
  41 void
  42 appendtag(Arg *arg)
  43 {
  44         if(!sel)
  45                 return;
  46
  47         sel->tags[arg->i] = tags[arg->i];
  48         arrange(NULL);
  49 }
  50
  51 void
  52 dofloat(Arg *arg)
  53 {
  54         Client *c;
  55
  56         for(c = clients; c; c = c->next) {
  57                 c->ismax = False;
  58                 if(c->tags[tsel]) {
  59                         resize(c, True, TopLeft);
  60                 }
  61                 else
  62                         ban(c);
  63         }
  64         if(sel && !sel->tags[tsel]) {
  65                 if((sel = getnext(clients, tsel))) {
  66                         higher(sel);
  67                         focus(sel);
  68                 }
  69         }
  70         drawall();
  71 }
  72
  73 void
  74 dotile(Arg *arg)
  75 {
  76         int n, i, w, h;
  77         Client *c;
  78
  79         w = sw - mw;
  80         for(n = 0, c = clients; c; c = c->next)
  81                 if(c->tags[tsel] && !c->isfloat)
  82                         n++;
  83
  84         if(n > 1)
  85                 h = (sh - bh) / (n - 1);
  86         else
  87                 h = sh - bh;
  88
  89         for(i = 0, c = clients; c; c = c->next) {
  90                 c->ismax = False;
  91                 if(c->tags[tsel]) {
  92                         if(c->isfloat) {
  93                                 higher(c);
  94                                 resize(c, True, TopLeft);
  95                                 continue;
  96                         }
  97                         if(n == 1) {
  98                                 c->x = sx;
  99                                 c->y = sy + bh;
 100                                 c->w = sw - 2 * c->border;
 101                                 c->h = sh - 2 * c->border - bh;
 102                         }
 103                         else if(i == 0) {
 104                                 c->x = sx;
 105                                 c->y = sy + bh;
 106                                 c->w = mw - 2 * c->border;
 107                                 c->h = sh - 2 * c->border - bh;
 108                         }
 109                         else if(h > bh) {
 110                                 c->x = sx + mw;
 111                                 c->y = sy + (i - 1) * h + bh;
 112                                 c->w = w - 2 * c->border;
 113                                 c->h = h - 2 * c->border;
 114                         }
 115                         else { /* fallback if h < bh */
 116                                 c->x = sx + mw;
 117                                 c->y = sy + bh;
 118                                 c->w = w - 2 * c->border;
 119                                 c->h = sh - 2 * c->border - bh;
 120                         }
 121                         resize(c, False, TopLeft);
 122                         i++;
 123                 }
 124                 else
 125                         ban(c);
 126         }
 127         if(!sel || (sel && !sel->tags[tsel])) {
 128                 if((sel = getnext(clients, tsel))) {
 129                         higher(sel);
 130                         focus(sel);
 131                 }
 132         }
 133         drawall();
 134 }
 135
 136 Client *
 137 getnext(Client *c, unsigned int t)
 138 {
 139         for(; c && !c->tags[t]; c = c->next);
 140         return c;
 141 }
 142
 143 void
 144 heretag(Arg *arg)
 145 {
 146         int i;
 147         Client *c;
 148
 149         if(arg->i == tsel)
 150                 return;
 151
 152         if(!(c = getnext(clients, arg->i)))
 153                 return;
 154
 155         for(i = 0; i < TLast; i++)
 156                 c->tags[i] = NULL;
 157         c->tags[tsel] = tags[tsel];
 158         pop(c);
 159         focus(c);
 160 }
 161
 162 void
 163 replacetag(Arg *arg)
 164 {
 165         int i;
 166
 167         if(!sel)
 168                 return;
 169
 170         for(i = 0; i < TLast; i++)
 171                 sel->tags[i] = NULL;
 172         appendtag(arg);
 173 }
 174
 175 void
 176 settags(Client *c)
 177 {
 178         char classinst[256];
 179         static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
 180         unsigned int i, j;
 181         regex_t regex;
 182         regmatch_t tmp;
 183         Bool matched = False;
 184         XClassHint ch;
 185
 186         if(!len) {
 187                 c->tags[tsel] = tags[tsel];
 188                 return;
 189         }
 190
 191         if(XGetClassHint(dpy, c->win, &ch)) {
 192                 snprintf(classinst, sizeof(classinst), "%s:%s",
 193                                 ch.res_class ? ch.res_class : "",
 194                                 ch.res_name ? ch.res_name : "");
 195                 for(i = 0; !matched && i < len; i++) {
 196                         if(!regcomp(&regex, rule[i].pattern, 0)) {
 197                                 if(!regexec(&regex, classinst, 1, &tmp, 0)) {
 198                                         for(j = 0; j < TLast; j++) {
 199                                                 if(rule[i].tags[j])
 200                                                         matched = True;
 201                                                 c->tags[j] = rule[i].tags[j];
 202                                         }
 203                                         c->isfloat = rule[i].isfloat;
 204                                 }
 205                                 regfree(&regex);
 206                         }
 207                 }
 208                 if(ch.res_class)
 209                         XFree(ch.res_class);
 210                 if(ch.res_name)
 211                         XFree(ch.res_name);
 212         }
 213         if(!matched)
 214                 c->tags[tsel] = tags[tsel];
 215 }
 216
 217 void
 218 togglemode(Arg *arg)
 219 {
 220         arrange = arrange == dofloat ? dotile : dofloat;
 221         arrange(NULL);
 222 }
 223
 224 void
 225 view(Arg *arg)
 226 {
 227         tsel = arg->i;
 228         arrange(NULL);
 229         drawall();
 230 }