tag.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include "dwm.h"
   3 #include <regex.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <X11/Xutil.h>
   7
   8 /* static */
   9
  10 typedef struct {
  11         const char *prop;
  12         const char *tags;
  13         Bool isfloating;
  14 } Rule;
  15
  16 typedef struct {
  17         regex_t *propregex;
  18         regex_t *tagregex;
  19 } Regs;
  20
  21 TAGS
  22 RULES
  23
  24 static Regs *regs = NULL;
  25 static unsigned int nrules = 0;
  26
  27 /* extern */
  28
  29 void
  30 compileregs(void) {
  31         unsigned int i;
  32         regex_t *reg;
  33
  34         if(regs)
  35                 return;
  36         nrules = sizeof rule / sizeof rule[0];
  37         regs = emallocz(nrules * sizeof(Regs));
  38         for(i = 0; i < nrules; i++) {
  39                 if(rule[i].prop) {
  40                         reg = emallocz(sizeof(regex_t));
  41                         if(regcomp(reg, rule[i].prop, REG_EXTENDED))
  42                                 free(reg);
  43                         else
  44                                 regs[i].propregex = reg;
  45                 }
  46                 if(rule[i].tags) {
  47                         reg = emallocz(sizeof(regex_t));
  48                         if(regcomp(reg, rule[i].tags, REG_EXTENDED))
  49                                 free(reg);
  50                         else
  51                                 regs[i].tagregex = reg;
  52                 }
  53         }
  54 }
  55
  56 Bool
  57 isvisible(Client *c) {
  58         unsigned int i;
  59
  60         for(i = 0; i < ntags; i++)
  61                 if(c->tags[i] && seltag[i])
  62                         return True;
  63         return False;
  64 }
  65
  66 void
  67 settags(Client *c, Client *trans) {
  68         char prop[512];
  69         unsigned int i, j;
  70         regmatch_t tmp;
  71         Bool matched = trans != NULL;
  72         XClassHint ch = { 0 };
  73
  74         if(matched)
  75                 for(i = 0; i < ntags; i++)
  76                         c->tags[i] = trans->tags[i];
  77         else {
  78                 XGetClassHint(dpy, c->win, &ch);
  79                 snprintf(prop, sizeof prop, "%s:%s:%s",
  80                                 ch.res_class ? ch.res_class : "",
  81                                 ch.res_name ? ch.res_name : "", c->name);
  82                 for(i = 0; i < nrules; i++)
  83                         if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
  84                                 c->isfloating = rule[i].isfloating;
  85                                 for(j = 0; regs[i].tagregex && j < ntags; j++) {
  86                                         if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
  87                                                 matched = True;
  88                                                 c->tags[j] = True;
  89                                         }
  90                                 }
  91                         }
  92                 if(ch.res_class)
  93                         XFree(ch.res_class);
  94                 if(ch.res_name)
  95                         XFree(ch.res_name);
  96         }
  97         if(!matched)
  98                 for(i = 0; i < ntags; i++)
  99                         c->tags[i] = seltag[i];
 100 }
 101
 102 void
 103 tag(const char *arg) {
 104         int i;
 105
 106         if(!sel)
 107                 return;
 108         for(i = 0; i < ntags; i++)
 109                 sel->tags[i] = arg == NULL;
 110         i = arg ? atoi(arg) : 0;
 111         if(i >= 0 && i < ntags)
 112                 sel->tags[i] = True;
 113         lt->arrange(NULL);
 114 }
 115
 116 void
 117 toggletag(const char *arg) {
 118         int i, j;
 119
 120         if(!sel)
 121                 return;
 122         i = arg ? atoi(arg) : 0;
 123         sel->tags[i] = !sel->tags[i];
 124         for(j = 0; j < ntags && !sel->tags[j]; j++);
 125         if(j == ntags)
 126                 sel->tags[i] = True;
 127         lt->arrange(NULL);
 128 }
 129
 130 void
 131 toggleview(const char *arg) {
 132         int i, j;
 133
 134         i = arg ? atoi(arg) : 0;
 135         seltag[i] = !seltag[i];
 136         for(j = 0; j < ntags && !seltag[j]; j++);
 137         if(j == ntags)
 138                 seltag[i] = True; /* cannot toggle last view */
 139         lt->arrange(NULL);
 140 }
 141
 142 void
 143 view(const char *arg) {
 144         int i;
 145
 146         for(i = 0; i < ntags; i++)
 147                 seltag[i] = arg == NULL;
 148         i = arg ? atoi(arg) : 0;
 149         if(i >= 0 && i < ntags)
 150                 seltag[i] = True;
 151         lt->arrange(NULL);
 152 }