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