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
 12typedef struct {
 13	const char *prop;
 14	const char *tags;
 15	Bool isversatile;
 16} Rule;
 17
 18typedef struct {
 19	regex_t *propregex;
 20	regex_t *tagregex;
 21} Regs;
 22
 23TAGS
 24RULES
 25
 26static Regs *regs = NULL;
 27static unsigned int nrules = 0;
 28
 29/* extern */
 30
 31void
 32compileregs(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
 58Bool
 59isvisible(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
 68void
 69settags(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
104void
105tag(Arg arg) {
106	unsigned int i;
107
108	if(!sel)
109		return;
110	for(i = 0; i < ntags; i++)
111		sel->tags[i] = (arg.i == -1) ? True : False;
112	if(arg.i >= 0 && arg.i < ntags)
113		sel->tags[arg.i] = True;
114	lt->arrange();
115}
116
117void
118toggletag(Arg arg) {
119	unsigned int i;
120
121	if(!sel)
122		return;
123	sel->tags[arg.i] = !sel->tags[arg.i];
124	for(i = 0; i < ntags && !sel->tags[i]; i++);
125	if(i == ntags)
126		sel->tags[arg.i] = True;
127	lt->arrange();
128}
129
130void
131toggleview(Arg arg) {
132	unsigned int i;
133
134	seltag[arg.i] = !seltag[arg.i];
135	for(i = 0; i < ntags && !seltag[i]; i++);
136	if(i == ntags)
137		seltag[arg.i] = True; /* cannot toggle last view */
138	lt->arrange();
139}
140
141void
142view(Arg arg) {
143	unsigned int i;
144
145	for(i = 0; i < ntags; i++)
146		seltag[i] = (arg.i == -1) ? True : False;
147	if(arg.i >= 0 && arg.i < ntags)
148		seltag[arg.i] = True;
149	lt->arrange();
150}