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[dwm.git] / 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  * © 2006-2007 Jukka Salmi <jukka at salmi dot ch>
4  * © 2007 Premysl Hruby <dfenze at gmail dot com>
5  * © 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
6  * See LICENSE file for license details. */
7 #include "dwm.h"
8 #include <regex.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <X11/Xutil.h>
12
13 /* static */
14
15 typedef struct {
16         const char *prop;
17         const char *tags;
18         Bool isfloating;
19 } Rule;
20
21 typedef struct {
22         regex_t *propregex;
23         regex_t *tagregex;
24 } Regs;
25
26 TAGS
27 RULES
28
29 static Regs *regs = NULL;
30 static unsigned int nrules = 0;
31
32 /* extern */
33
34 void
35 compileregs(void) {
36         unsigned int i;
37         regex_t *reg;
38
39         if(regs)
40                 return;
41         nrules = sizeof rule / sizeof rule[0];
42         regs = emallocz(nrules * sizeof(Regs));
43         for(i = 0; i < nrules; i++) {
44                 if(rule[i].prop) {
45                         reg = emallocz(sizeof(regex_t));
46                         if(regcomp(reg, rule[i].prop, REG_EXTENDED))
47                                 free(reg);
48                         else
49                                 regs[i].propregex = reg;
50                 }
51                 if(rule[i].tags) {
52                         reg = emallocz(sizeof(regex_t));
53                         if(regcomp(reg, rule[i].tags, REG_EXTENDED))
54                                 free(reg);
55                         else
56                                 regs[i].tagregex = reg;
57                 }
58         }
59 }
60
61 Bool
62 isvisible(Client *c) {
63         unsigned int i;
64
65         for(i = 0; i < ntags; i++)
66                 if(c->tags[i] && seltag[i])
67                         return True;
68         return False;
69 }
70
71 void
72 settags(Client *c, Client *trans) {
73         char prop[512];
74         unsigned int i, j;
75         regmatch_t tmp;
76         Bool matched = trans != NULL;
77         XClassHint ch = { 0 };
78
79         if(matched)
80                 for(i = 0; i < ntags; i++)
81                         c->tags[i] = trans->tags[i];
82         else {
83                 XGetClassHint(dpy, c->win, &ch);
84                 snprintf(prop, sizeof prop, "%s:%s:%s",
85                                 ch.res_class ? ch.res_class : "",
86                                 ch.res_name ? ch.res_name : "", c->name);
87                 for(i = 0; i < nrules; i++)
88                         if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
89                                 c->isfloating = rule[i].isfloating;
90                                 for(j = 0; regs[i].tagregex && j < ntags; j++) {
91                                         if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
92                                                 matched = True;
93                                                 c->tags[j] = True;
94                                         }
95                                 }
96                         }
97                 if(ch.res_class)
98                         XFree(ch.res_class);
99                 if(ch.res_name)
100                         XFree(ch.res_name);
101         }
102         if(!matched)
103                 for(i = 0; i < ntags; i++)
104                         c->tags[i] = seltag[i];
105 }
106
107 void
108 tag(const char *arg) {
109         int i;
110
111         if(!sel)
112                 return;
113         for(i = 0; i < ntags; i++)
114                 sel->tags[i] = arg == NULL;
115         i = arg ? atoi(arg) : 0;
116         if(i >= 0 && i < ntags)
117                 sel->tags[i] = True;
118         lt->arrange();
119 }
120
121 void
122 toggletag(const char *arg) {
123         int i, j;
124
125         if(!sel)
126                 return;
127         i = arg ? atoi(arg) : 0;
128         sel->tags[i] = !sel->tags[i];
129         for(j = 0; j < ntags && !sel->tags[j]; j++);
130         if(j == ntags)
131                 sel->tags[i] = True;
132         lt->arrange();
133 }
134
135 void
136 toggleview(const char *arg) {
137         int i, j;
138
139         i = arg ? atoi(arg) : 0;
140         seltag[i] = !seltag[i];
141         for(j = 0; j < ntags && !seltag[j]; j++);
142         if(j == ntags)
143                 seltag[i] = True; /* cannot toggle last view */
144         lt->arrange();
145 }
146
147 void
148 view(const char *arg) {
149         int i;
150
151         for(i = 0; i < ntags; i++)
152                 seltag[i] = arg == NULL;
153         i = arg ? atoi(arg) : 0;
154         if(i >= 0 && i < ntags)
155                 seltag[i] = True;
156         lt->arrange();
157 }