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))) {
  67                         higher(sel);
  68                         focus(sel);
  69                 }
  70                 else
  71                         XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
  72         }
  73         drawall();
  74 }
  75
  76 void
  77 dotile(Arg *arg)
  78 {
  79         int n, i, w, h;
  80         Client *c;
  81
  82         w = sw - mw;
  83         for(n = 0, c = clients; c; c = c->next)
  84                 if(c->tags[tsel] && !c->isfloat)
  85                         n++;
  86
  87         if(n > 1)
  88                 h = (sh - bh) / (n - 1);
  89         else
  90                 h = sh - bh;
  91
  92         for(i = 0, c = clients; c; c = c->next) {
  93                 c->ismax = False;
  94                 if(c->tags[tsel]) {
  95                         if(c->isfloat) {
  96                                 higher(c);
  97                                 resize(c, True, TopLeft);
  98                                 continue;
  99                         }
 100                         if(n == 1) {
 101                                 c->x = sx;
 102                                 c->y = sy + bh;
 103                                 c->w = sw - 2 * c->border;
 104                                 c->h = sh - 2 * c->border - bh;
 105                         }
 106                         else if(i == 0) {
 107                                 c->x = sx;
 108                                 c->y = sy + bh;
 109                                 c->w = mw - 2 * c->border;
 110                                 c->h = sh - 2 * c->border - bh;
 111                         }
 112                         else if(h > bh) {
 113                                 c->x = sx + mw;
 114                                 c->y = sy + (i - 1) * h + bh;
 115                                 c->w = w - 2 * c->border;
 116                                 c->h = h - 2 * c->border;
 117                         }
 118                         else { /* fallback if h < bh */
 119                                 c->x = sx + mw;
 120                                 c->y = sy + bh;
 121                                 c->w = w - 2 * c->border;
 122                                 c->h = sh - 2 * c->border - bh;
 123                         }
 124                         resize(c, False, TopLeft);
 125                         i++;
 126                 }
 127                 else
 128                         ban(c);
 129         }
 130         if(!sel || (sel && !sel->tags[tsel])) {
 131                 if((sel = getnext(clients))) {
 132                         higher(sel);
 133                         focus(sel);
 134                 }
 135                 else
 136                         XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 137         }
 138         drawall();
 139 }
 140
 141 Client *
 142 getnext(Client *c)
 143 {
 144         for(; c && !c->tags[tsel]; c = c->next);
 145         return c;
 146 }
 147
 148 Client *
 149 getprev(Client *c)
 150 {
 151         for(; c && !c->tags[tsel]; c = c->prev);
 152         return c;
 153 }
 154
 155 void
 156 replacetag(Arg *arg)
 157 {
 158         int i;
 159
 160         if(!sel)
 161                 return;
 162
 163         for(i = 0; i < TLast; i++)
 164                 sel->tags[i] = NULL;
 165         appendtag(arg);
 166 }
 167
 168 void
 169 settags(Client *c)
 170 {
 171         char classinst[256];
 172         static unsigned int len = sizeof(rule) / sizeof(rule[0]);
 173         unsigned int i, j;
 174         regex_t regex;
 175         regmatch_t tmp;
 176         Bool matched = False;
 177         XClassHint ch;
 178
 179         if(XGetClassHint(dpy, c->win, &ch)) {
 180                 snprintf(classinst, sizeof(classinst), "%s:%s",
 181                                 ch.res_class ? ch.res_class : "",
 182                                 ch.res_name ? ch.res_name : "");
 183                 for(i = 0; !matched && i < len; i++) {
 184                         if(!regcomp(&regex, rule[i].pattern, 0)) {
 185                                 if(!regexec(&regex, classinst, 1, &tmp, 0)) {
 186                                         for(j = 0; j < TLast; j++) {
 187                                                 if(rule[i].tags[j])
 188                                                         matched = True;
 189                                                 c->tags[j] = rule[i].tags[j];
 190                                         }
 191                                         c->isfloat = rule[i].isfloat;
 192                                 }
 193                                 regfree(&regex);
 194                         }
 195                 }
 196                 if(ch.res_class)
 197                         XFree(ch.res_class);
 198                 if(ch.res_name)
 199                         XFree(ch.res_name);
 200         }
 201         if(!matched)
 202                 c->tags[tsel] = tags[tsel];
 203 }
 204
 205 void
 206 togglemode(Arg *arg)
 207 {
 208         arrange = arrange == dofloat ? dotile : dofloat;
 209         arrange(NULL);
 210 }
 211
 212 void
 213 view(Arg *arg)
 214 {
 215         tsel = arg->i;
 216         arrange(NULL);
 217         drawall();
 218 }
 219
 220 void
 221 viewnext(Arg *arg)
 222 {
 223         arg->i = (tsel < TLast-1) ? tsel+1 : 0;
 224         view(arg);
 225 }
 226
 227 void
 228 viewprev(Arg *arg)
 229 {
 230         arg->i = (tsel > 0) ? tsel-1 : TLast-1;
 231         view(arg);
 232 }