1/*
  2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * See LICENSE file for license details.
  4 */
  5#include "dwm.h"
  6
  7#include <regex.h>
  8#include <stdio.h>
  9#include <string.h>
 10#include <sys/types.h>
 11#include <X11/Xutil.h>
 12
 13/* static */
 14
 15typedef struct {
 16	const char *pattern;
 17	char *tags[TLast];
 18	Bool isfloat;
 19} Rule;
 20
 21/* CUSTOMIZE */ 
 22static Rule rule[] = {
 23	/* class:instance	tags				isfloat */
 24	{ "Firefox.*",		{ [Tnet] = "net" },		False },
 25	{ "Gimp.*",		{ 0 },				True},
 26};
 27
 28char *tags[TLast] = {
 29	[Tfnord] = "fnord",
 30	[Tdev] = "dev",
 31	[Tnet] = "net",
 32	[Twork] = "work",
 33	[Tmisc] = "misc",
 34};
 35
 36void (*arrange)(Arg *) = dotile;
 37
 38/* END CUSTOMIZE */
 39
 40/* extern */
 41
 42void
 43appendtag(Arg *arg)
 44{
 45	if(!sel)
 46		return;
 47
 48	sel->tags[arg->i] = tags[arg->i];
 49	arrange(NULL);
 50}
 51
 52void
 53dofloat(Arg *arg)
 54{
 55	Client *c;
 56
 57	for(c = clients; c; c = c->next) {
 58		c->ismax = False;
 59		if(c->tags[tsel]) {
 60			resize(c, True, TopLeft);
 61		}
 62		else
 63			ban(c);
 64	}
 65	if(sel && !sel->tags[tsel]) {
 66		if((sel = getnext(clients))) {
 67			higher(sel);
 68			focus(sel);
 69		}
 70		else
 71			XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 72	}
 73	drawall();
 74}
 75
 76void
 77dotile(Arg *arg)
 78{
 79	int n, i, w, h;
 80	Client *c;
 81
 82	w = sw - mw;
 83	for(n = 0, c = clients; c; c = c->next)
 84		if(c->tags[tsel] && !c->isfloat)
 85			n++;
 86
 87	if(n > 1)
 88		h = (sh - bh) / (n - 1);
 89	else
 90		h = sh - bh;
 91
 92	for(i = 0, c = clients; c; c = c->next) {
 93		c->ismax = False;
 94		if(c->tags[tsel]) {
 95			if(c->isfloat) {
 96				higher(c);
 97				resize(c, True, TopLeft);
 98				continue;
 99			}
100			if(n == 1) {
101				c->x = sx;
102				c->y = sy + bh;
103				c->w = sw - 2 * c->border;
104				c->h = sh - 2 * c->border - bh;
105			}
106			else if(i == 0) {
107				c->x = sx;
108				c->y = sy + bh;
109				c->w = mw - 2 * c->border;
110				c->h = sh - 2 * c->border - bh;
111			}
112			else if(h > bh) {
113				c->x = sx + mw;
114				c->y = sy + (i - 1) * h + bh;
115				c->w = w - 2 * c->border;
116				c->h = h - 2 * c->border;
117			}
118			else { /* fallback if h < bh */
119				c->x = sx + mw;
120				c->y = sy + bh;
121				c->w = w - 2 * c->border;
122				c->h = sh - 2 * c->border - bh;
123			}
124			resize(c, False, TopLeft);
125			i++;
126		}
127		else
128			ban(c);
129	}
130	if(!sel || (sel && !sel->tags[tsel])) {
131		if((sel = getnext(clients))) {
132			higher(sel);
133			focus(sel);
134		}
135		else
136			XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
137	}
138	drawall();
139}
140
141Client *
142getnext(Client *c)
143{
144	for(; c && !c->tags[tsel]; c = c->next);
145	return c;
146}
147
148Client *
149getprev(Client *c)
150{
151	for(; c && !c->tags[tsel]; c = c->prev);
152	return c;
153}
154
155void
156replacetag(Arg *arg)
157{
158	int i;
159
160	if(!sel)
161		return;
162
163	for(i = 0; i < TLast; i++)
164		sel->tags[i] = NULL;
165	appendtag(arg);
166}
167
168void
169settags(Client *c)
170{
171	char classinst[256];
172	static unsigned int len = sizeof(rule) / sizeof(rule[0]);
173	unsigned int i, j;
174	regex_t regex;
175	regmatch_t tmp;
176	Bool matched = False;
177	XClassHint ch;
178
179	if(XGetClassHint(dpy, c->win, &ch)) {
180		snprintf(classinst, sizeof(classinst), "%s:%s",
181				ch.res_class ? ch.res_class : "",
182				ch.res_name ? ch.res_name : "");
183		for(i = 0; !matched && i < len; i++) {
184			if(!regcomp(&regex, rule[i].pattern, 0)) {
185				if(!regexec(&regex, classinst, 1, &tmp, 0)) {
186					for(j = 0; j < TLast; j++) {
187						if(rule[i].tags[j])
188							matched = True;
189						c->tags[j] = rule[i].tags[j];
190					}
191					c->isfloat = rule[i].isfloat;
192				}
193				regfree(&regex);
194			}
195		}
196		if(ch.res_class)
197			XFree(ch.res_class);
198		if(ch.res_name)
199			XFree(ch.res_name);
200	}
201	if(!matched)
202		c->tags[tsel] = tags[tsel];
203}
204
205void
206togglemode(Arg *arg)
207{
208	arrange = arrange == dofloat ? dotile : dofloat;
209	arrange(NULL);
210}
211
212void
213view(Arg *arg)
214{
215	tsel = arg->i;
216	arrange(NULL);
217	drawall();
218}