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 #include <regex.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <X11/Xutil.h>
  12
  13
  14 typedef struct {
  15         const char *clpattern;
  16         const char *tpattern;
  17         Bool isfloat;
  18 } Rule;
  19
  20 typedef struct {
  21         regex_t *clregex;
  22         regex_t *tregex;
  23 } RReg;
  24
  25 /* static */
  26
  27 TAGS
  28 RULES
  29
  30 static RReg *rreg = NULL;
  31 static unsigned int len = 0;
  32
  33 static void
  34 applytag()
  35 {
  36         /* asserts sel != NULL */
  37         settitle(sel);
  38         if(!isvisible(sel))
  39                 arrange(NULL);
  40         else
  41                 drawstatus();
  42 }
  43
  44 /* extern */
  45
  46 Client *
  47 getnext(Client *c)
  48 {
  49         for(; c && !isvisible(c); c = c->next);
  50         return c;
  51 }
  52
  53 Client *
  54 getprev(Client *c)
  55 {
  56         for(; c && !isvisible(c); c = c->prev);
  57         return c;
  58 }
  59
  60 void
  61 initrregs()
  62 {
  63         unsigned int i;
  64         regex_t *reg;
  65
  66         if(rreg)
  67                 return;
  68         len = sizeof(rule) / sizeof(rule[0]);
  69         rreg = emallocz(len * sizeof(RReg));
  70
  71         for(i = 0; i < len; i++) {
  72                 if(rule[i].clpattern) {
  73                         reg = emallocz(sizeof(regex_t));
  74                         if(regcomp(reg, rule[i].clpattern, 0))
  75                                 free(reg);
  76                         else
  77                                 rreg[i].clregex = reg;
  78                 }
  79                 if(rule[i].tpattern) {
  80                         reg = emallocz(sizeof(regex_t));
  81                         if(regcomp(reg, rule[i].tpattern, 0))
  82                                 free(reg);
  83                         else
  84                                 rreg[i].tregex = reg;
  85                 }
  86         }
  87 }
  88
  89 void
  90 settags(Client *c)
  91 {
  92         char prop[512];
  93         unsigned int i, j;
  94         regmatch_t tmp;
  95         Bool matched = False;
  96         XClassHint ch;
  97
  98         if(XGetClassHint(dpy, c->win, &ch)) {
  99                 snprintf(prop, sizeof(prop), "%s:%s:%s",
 100                                 ch.res_class ? ch.res_class : "",
 101                                 ch.res_name ? ch.res_name : "", c->name);
 102                 for(i = 0; !matched && i < len; i++)
 103                         if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
 104                                 c->isfloat = rule[i].isfloat;
 105                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
 106                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
 107                                                 matched = True;
 108                                                 c->tags[j] = True;
 109                                         }
 110                                 }
 111                         }
 112                 if(ch.res_class)
 113                         XFree(ch.res_class);
 114                 if(ch.res_name)
 115                         XFree(ch.res_name);
 116         }
 117         if(!matched)
 118                 for(i = 0; i < ntags; i++)
 119                         c->tags[i] = seltag[i];
 120         for(i = 0; i < ntags && !c->tags[i]; i++);
 121         c->weight = i;
 122 }
 123
 124 void
 125 tag(Arg *arg)
 126 {
 127         unsigned int i;
 128
 129         if(!sel)
 130                 return;
 131
 132         for(i = 0; i < ntags; i++)
 133                 sel->tags[i] = False;
 134         sel->tags[arg->i] = True;
 135         applytag();
 136 }
 137
 138 void
 139 toggletag(Arg *arg)
 140 {
 141         unsigned int i;
 142
 143         if(!sel)
 144                 return;
 145
 146         sel->tags[arg->i] = !sel->tags[arg->i];
 147         for(i = 0; i < ntags && !sel->tags[i]; i++);
 148         if(i == ntags)
 149                 sel->tags[arg->i] = True;
 150         applytag();
 151 }