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, tsel))) {
 67			higher(sel);
 68			focus(sel);
 69		}
 70	}
 71	drawall();
 72}
 73
 74void
 75dotile(Arg *arg)
 76{
 77	int n, i, w, h;
 78	Client *c;
 79
 80	w = sw - mw;
 81	for(n = 0, c = clients; c; c = c->next)
 82		if(c->tags[tsel] && !c->isfloat)
 83			n++;
 84
 85	if(n > 1)
 86		h = (sh - bh) / (n - 1);
 87	else
 88		h = sh - bh;
 89
 90	for(i = 0, c = clients; c; c = c->next) {
 91		c->ismax = False;
 92		if(c->tags[tsel]) {
 93			if(c->isfloat) {
 94				higher(c);
 95				resize(c, True, TopLeft);
 96				continue;
 97			}
 98			if(n == 1) {
 99				c->x = sx;
100				c->y = sy + bh;
101				c->w = sw - 2 * c->border;
102				c->h = sh - 2 * c->border - bh;
103			}
104			else if(i == 0) {
105				c->x = sx;
106				c->y = sy + bh;
107				c->w = mw - 2 * c->border;
108				c->h = sh - 2 * c->border - bh;
109			}
110			else if(h > bh) {
111				c->x = sx + mw;
112				c->y = sy + (i - 1) * h + bh;
113				c->w = w - 2 * c->border;
114				c->h = h - 2 * c->border;
115			}
116			else { /* fallback if h < bh */
117				c->x = sx + mw;
118				c->y = sy + bh;
119				c->w = w - 2 * c->border;
120				c->h = sh - 2 * c->border - bh;
121			}
122			resize(c, False, TopLeft);
123			i++;
124		}
125		else
126			ban(c);
127	}
128	if(!sel || (sel && !sel->tags[tsel])) {
129		if((sel = getnext(clients, tsel))) {
130			higher(sel);
131			focus(sel);
132		}
133	}
134	drawall();
135}
136
137Client *
138getnext(Client *c, unsigned int t)
139{
140	for(; c && !c->tags[t]; c = c->next);
141	return c;
142}
143
144Client *
145getprev(Client *c)
146{
147	for(; c && !c->tags[tsel]; c = c->prev);
148	return c;
149}
150
151void
152replacetag(Arg *arg)
153{
154	int i;
155
156	if(!sel)
157		return;
158
159	for(i = 0; i < TLast; i++)
160		sel->tags[i] = NULL;
161	appendtag(arg);
162}
163
164void
165settags(Client *c)
166{
167	char classinst[256];
168	static unsigned int len = sizeof(rule) / sizeof(rule[0]);
169	unsigned int i, j;
170	regex_t regex;
171	regmatch_t tmp;
172	Bool matched = False;
173	XClassHint ch;
174
175	if(XGetClassHint(dpy, c->win, &ch)) {
176		snprintf(classinst, sizeof(classinst), "%s:%s",
177				ch.res_class ? ch.res_class : "",
178				ch.res_name ? ch.res_name : "");
179		for(i = 0; !matched && i < len; i++) {
180			if(!regcomp(&regex, rule[i].pattern, 0)) {
181				if(!regexec(&regex, classinst, 1, &tmp, 0)) {
182					for(j = 0; j < TLast; j++) {
183						if(rule[i].tags[j])
184							matched = True;
185						c->tags[j] = rule[i].tags[j];
186					}
187					c->isfloat = rule[i].isfloat;
188				}
189				regfree(&regex);
190			}
191		}
192		if(ch.res_class)
193			XFree(ch.res_class);
194		if(ch.res_name)
195			XFree(ch.res_name);
196	}
197	if(!matched)
198		c->tags[tsel] = tags[tsel];
199}
200
201void
202togglemode(Arg *arg)
203{
204	arrange = arrange == dofloat ? dotile : dofloat;
205	arrange(NULL);
206}
207
208void
209view(Arg *arg)
210{
211	tsel = arg->i;
212	arrange(NULL);
213	drawall();
214}