tag.c

   1 /* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com>
   2  * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
   3  * © 2007 Premysl Hruby <dfenze at gmail dot com>
   4  * See LICENSE file for license details. */
   5 #include "dwm.h"
   6 #include <regex.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <X11/Xutil.h>
  10
  11 /* static */
  12
  13 typedef struct {
  14         const char *prop;
  15         const char *tags;
  16         Bool isfloating;
  17 } Rule;
  18
  19 typedef struct {
  20         regex_t *propregex;
  21         regex_t *tagregex;
  22 } Regs;
  23
  24 TAGS
  25 RULES
  26
  27 static Regs *regs = NULL;
  28 static unsigned int nrules = 0;
  29
  30 /* extern */
  31
  32 void
  33 compileregs(void) {
  34         unsigned int i;
  35         regex_t *reg;
  36
  37         if(regs)
  38                 return;
  39         nrules = sizeof rule / sizeof rule[0];
  40         regs = emallocz(nrules * sizeof(Regs));
  41         for(i = 0; i < nrules; i++) {
  42                 if(rule[i].prop) {
  43                         reg = emallocz(sizeof(regex_t));
  44                         if(regcomp(reg, rule[i].prop, REG_EXTENDED))
  45                                 free(reg);
  46                         else
  47                                 regs[i].propregex = reg;
  48                 }
  49                 if(rule[i].tags) {
  50                         reg = emallocz(sizeof(regex_t));
  51                         if(regcomp(reg, rule[i].tags, REG_EXTENDED))
  52                                 free(reg);
  53                         else
  54                                 regs[i].tagregex = reg;
  55                 }
  56         }
  57 }
  58
  59 Bool
  60 isvisible(Client *c) {
  61         unsigned int i;
  62
  63         for(i = 0; i < ntags; i++)
  64                 if(c->tags[i] && seltag[i])
  65                         return True;
  66         return False;
  67 }
  68
  69 void
  70 settags(Client *c, Client *trans) {
  71         char prop[512];
  72         unsigned int i, j;
  73         regmatch_t tmp;
  74         Bool matched = trans != NULL;
  75         XClassHint ch = { 0 };
  76
  77         if(matched)
  78                 for(i = 0; i < ntags; i++)
  79                         c->tags[i] = trans->tags[i];
  80         else {
  81                 XGetClassHint(dpy, c->win, &ch);
  82                 snprintf(prop, sizeof prop, "%s:%s:%s",
  83                                 ch.res_class ? ch.res_class : "",
  84                                 ch.res_name ? ch.res_name : "", c->name);
  85                 for(i = 0; i < nrules; i++)
  86                         if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
  87                                 c->isfloating = rule[i].isfloating;
  88                                 for(j = 0; regs[i].tagregex && j < ntags; j++) {
  89                                         if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
  90                                                 matched = True;
  91                                                 c->tags[j] = True;
  92                                         }
  93                                 }
  94                         }
  95                 if(ch.res_class)
  96                         XFree(ch.res_class);
  97                 if(ch.res_name)
  98                         XFree(ch.res_name);
  99         }
 100         if(!matched)
 101                 for(i = 0; i < ntags; i++)
 102                         c->tags[i] = seltag[i];
 103 }
 104
 105 void
 106 tag(const char *arg) {
 107         int i;
 108
 109         if(!sel)
 110                 return;
 111         for(i = 0; i < ntags; i++)
 112                 sel->tags[i] = arg == NULL;
 113         i = arg ? atoi(arg) : 0;
 114         if(i >= 0 && i < ntags)
 115                 sel->tags[i] = True;
 116         lt->arrange();
 117 }
 118
 119 void
 120 toggletag(const char *arg) {
 121         int i, j;
 122
 123         if(!sel)
 124                 return;
 125         i = arg ? atoi(arg) : 0;
 126         sel->tags[i] = !sel->tags[i];
 127         for(j = 0; j < ntags && !sel->tags[j]; j++);
 128         if(j == ntags)
 129                 sel->tags[i] = True;
 130         lt->arrange();
 131 }
 132
 133 void
 134 toggleview(const char *arg) {
 135         int i, j;
 136
 137         i = arg ? atoi(arg) : 0;
 138         seltag[i] = !seltag[i];
 139         for(j = 0; j < ntags && !seltag[j]; j++);
 140         if(j == ntags)
 141                 seltag[i] = True; /* cannot toggle last view */
 142         lt->arrange();
 143 }
 144
 145 void
 146 view(const char *arg) {
 147         int i;
 148
 149         for(i = 0; i < ntags; i++)
 150                 seltag[i] = arg == NULL;
 151         i = arg ? atoi(arg) : 0;
 152         if(i >= 0 && i < ntags)
 153                 seltag[i] = True;
 154         lt->arrange();
 155 }