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