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 <stdlib.h>
   8 #include <X11/Xutil.h>
   9
  10 /* static */
  11
  12 typedef struct {
  13         const char *prop;
  14         const char *tags;
  15         Bool isversatile;
  16 } Rule;
  17
  18 typedef struct {
  19         regex_t *propregex;
  20         regex_t *tagregex;
  21 } Regs;
  22
  23 TAGS
  24 RULES
  25
  26 static Regs *regs = NULL;
  27 static unsigned int nrules = 0;
  28
  29 /* extern */
  30
  31 void
  32 compileregs(void) {
  33         unsigned int i;
  34         regex_t *reg;
  35
  36         if(regs)
  37                 return;
  38         nrules = sizeof rule / sizeof rule[0];
  39         regs = emallocz(nrules * sizeof(Regs));
  40         for(i = 0; i < nrules; i++) {
  41                 if(rule[i].prop) {
  42                         reg = emallocz(sizeof(regex_t));
  43                         if(regcomp(reg, rule[i].prop, REG_EXTENDED))
  44                                 free(reg);
  45                         else
  46                                 regs[i].propregex = reg;
  47                 }
  48                 if(rule[i].tags) {
  49                         reg = emallocz(sizeof(regex_t));
  50                         if(regcomp(reg, rule[i].tags, REG_EXTENDED))
  51                                 free(reg);
  52                         else
  53                                 regs[i].tagregex = reg;
  54                 }
  55         }
  56 }
  57
  58 Bool
  59 isvisible(Client *c) {
  60         unsigned int i;
  61
  62         for(i = 0; i < ntags; i++)
  63                 if(c->tags[i] && seltag[i])
  64                         return True;
  65         return False;
  66 }
  67
  68 void
  69 settags(Client *c, Client *trans) {
  70         char prop[512];
  71         unsigned int i, j;
  72         regmatch_t tmp;
  73         Bool matched = trans != NULL;
  74         XClassHint ch = { 0 };
  75
  76         if(matched)
  77                 for(i = 0; i < ntags; i++)
  78                         c->tags[i] = trans->tags[i];
  79         else {
  80                 XGetClassHint(dpy, c->win, &ch);
  81                 snprintf(prop, sizeof prop, "%s:%s:%s",
  82                                 ch.res_class ? ch.res_class : "",
  83                                 ch.res_name ? ch.res_name : "", c->name);
  84                 for(i = 0; i < nrules; i++)
  85                         if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
  86                                 c->isversatile = rule[i].isversatile;
  87                                 for(j = 0; regs[i].tagregex && j < ntags; j++) {
  88                                         if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
  89                                                 matched = True;
  90                                                 c->tags[j] = True;
  91                                         }
  92                                 }
  93                         }
  94                 if(ch.res_class)
  95                         XFree(ch.res_class);
  96                 if(ch.res_name)
  97                         XFree(ch.res_name);
  98         }
  99         if(!matched)
 100                 for(i = 0; i < ntags; i++)
 101                         c->tags[i] = seltag[i];
 102 }
 103
 104 void
 105 tag(const char *arg) {
 106         int i;
 107
 108         if(!sel)
 109                 return;
 110         for(i = 0; i < ntags; i++)
 111                 sel->tags[i] = arg == NULL;
 112         i = arg ? atoi(arg) : 0;
 113         if(i >= 0 && i < ntags)
 114                 sel->tags[i] = True;
 115         lt->arrange();
 116 }
 117
 118 void
 119 toggletag(const char *arg) {
 120         int i, j;
 121
 122         if(!sel)
 123                 return;
 124         i = arg ? atoi(arg) : 0;
 125         sel->tags[i] = !sel->tags[i];
 126         for(j = 0; j < ntags && !sel->tags[j]; j++);
 127         if(j == ntags)
 128                 sel->tags[i] = True;
 129         lt->arrange();
 130 }
 131
 132 void
 133 toggleview(const char *arg) {
 134         int i, j;
 135
 136         i = arg ? atoi(arg) : 0;
 137         seltag[i] = !seltag[i];
 138         for(j = 0; j < ntags && !seltag[j]; j++);
 139         if(j == ntags)
 140                 seltag[i] = True; /* cannot toggle last view */
 141         lt->arrange();
 142 }
 143
 144 void
 145 view(const char *arg) {
 146         int i;
 147
 148         for(i = 0; i < ntags; i++)
 149                 seltag[i] = arg == NULL;
 150         i = arg ? atoi(arg) : 0;
 151         if(i >= 0 && i < ntags)
 152                 seltag[i] = True;
 153         lt->arrange();
 154 }