tag.c

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