1/* See LICENSE file for copyright and license details. */
  2#include "dwm.h"
  3#include <regex.h>
  4#include <stdio.h>
  5#include <stdlib.h>
  6#include <X11/Xutil.h>
  7
  8/* static */
  9
 10typedef struct {
 11	const char *prop;
 12	const char *tags;
 13	Bool isfloating;
 14} Rule;
 15
 16typedef struct {
 17	regex_t *propregex;
 18	regex_t *tagregex;
 19} Regs;
 20
 21TAGS
 22RULES
 23
 24static Regs *regs = NULL;
 25static unsigned int nrules = 0;
 26static char prop[512];
 27
 28static unsigned int
 29idxoftag(const char *tag) {
 30	unsigned int i;
 31
 32	for(i = 0; i < ntags; i++)
 33		if(tags[i] == tag)
 34			return i;
 35	return 0;
 36}
 37
 38/* extern */
 39
 40void
 41applyrules(Client *c) {
 42	unsigned int i, j;
 43	regmatch_t tmp;
 44	Bool matched = False;
 45	XClassHint ch = { 0 };
 46
 47	/* rule matching */
 48	XGetClassHint(dpy, c->win, &ch);
 49	snprintf(prop, sizeof prop, "%s:%s:%s",
 50			ch.res_class ? ch.res_class : "",
 51			ch.res_name ? ch.res_name : "", c->name);
 52	for(i = 0; i < nrules; i++)
 53		if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
 54			c->isfloating = rules[i].isfloating;
 55			for(j = 0; regs[i].tagregex && j < ntags; j++) {
 56				if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
 57					matched = True;
 58					c->tags[j] = True;
 59				}
 60			}
 61		}
 62	if(ch.res_class)
 63		XFree(ch.res_class);
 64	if(ch.res_name)
 65		XFree(ch.res_name);
 66	if(!matched)
 67		for(i = 0; i < ntags; i++)
 68			c->tags[i] = seltags[i];
 69}
 70
 71void
 72compileregs(void) {
 73	unsigned int i;
 74	regex_t *reg;
 75
 76	if(regs)
 77		return;
 78	nrules = sizeof rules / sizeof rules[0];
 79	regs = emallocz(nrules * sizeof(Regs));
 80	for(i = 0; i < nrules; i++) {
 81		if(rules[i].prop) {
 82			reg = emallocz(sizeof(regex_t));
 83			if(regcomp(reg, rules[i].prop, REG_EXTENDED))
 84				free(reg);
 85			else
 86				regs[i].propregex = reg;
 87		}
 88		if(rules[i].tags) {
 89			reg = emallocz(sizeof(regex_t));
 90			if(regcomp(reg, rules[i].tags, REG_EXTENDED))
 91				free(reg);
 92			else
 93				regs[i].tagregex = reg;
 94		}
 95	}
 96}
 97
 98Bool
 99isvisible(Client *c) {
100	unsigned int i;
101
102	for(i = 0; i < ntags; i++)
103		if(c->tags[i] && seltags[i])
104			return True;
105	return False;
106}
107
108void
109tag(const char *arg) {
110	unsigned int i;
111
112	if(!sel)
113		return;
114	for(i = 0; i < ntags; i++)
115		sel->tags[i] = arg == NULL;
116	i = idxoftag(arg);
117	if(i >= 0 && i < ntags)
118		sel->tags[i] = True;
119	saveprops(sel);
120	arrange();
121}
122
123void
124togglefloating(const char *arg) {
125	if(!sel || isfloating())
126		return;
127	sel->isfloating = !sel->isfloating;
128	if(sel->isfloating) {
129		resize(sel, sel->x, sel->y, sel->w, sel->h, True);
130		saveprops(sel);
131	}
132	arrange();
133}
134
135void
136toggletag(const char *arg) {
137	unsigned int i, j;
138
139	if(!sel)
140		return;
141	i = idxoftag(arg);
142	sel->tags[i] = !sel->tags[i];
143	for(j = 0; j < ntags && !sel->tags[j]; j++);
144	if(j == ntags)
145		sel->tags[i] = True;
146	saveprops(sel);
147	arrange();
148}
149
150void
151toggleview(const char *arg) {
152	unsigned int i, j;
153
154	i = idxoftag(arg);
155	seltags[i] = !seltags[i];
156	for(j = 0; j < ntags && !seltags[j]; j++);
157	if(j == ntags)
158		seltags[i] = True; /* cannot toggle last view */
159	savedwmprops();
160	arrange();
161}
162
163void
164view(const char *arg) {
165	unsigned int i;
166
167	for(i = 0; i < ntags; i++)
168		seltags[i] = arg == NULL;
169	i = idxoftag(arg);
170	if(i >= 0 && i < ntags)
171		seltags[i] = True;
172	savedwmprops();
173	arrange();
174}