dwm/tag.c

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/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
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#include <regex.h>
#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <X11/Xutil.h>
/* static */
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typedef struct {
const char *pattern;
char *tags[TLast];
Bool isfloat;
} Rule;
/* CUSTOMIZE */
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static Rule rule[] = {
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/* class:instance tags isfloat */
{ "Firefox.*", { [Twww] = "www" }, False },
{ "Gimp.*", { 0 }, True},
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};
/* extern */
/* CUSTOMIZE */
char *tags[TLast] = {
[Tscratch] = "scratch",
[Tdev] = "dev",
[Twww] = "www",
[Twork] = "work",
};
void (*arrange)(Arg *) = dotile;
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void
appendtag(Arg *arg)
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{
if(!sel)
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return;
sel->tags[arg->i] = tags[arg->i];
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arrange(NULL);
}
void
dofloat(Arg *arg)
{
Client *c;
arrange = dofloat;
for(c = clients; c; c = c->next) {
if(c->tags[tsel]) {
resize(c, True, TopLeft);
}
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else
ban(c);
}
if(sel && !sel->tags[tsel]) {
if((sel = getnext(clients, tsel))) {
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higher(sel);
focus(sel);
}
}
drawall();
}
void
dotile(Arg *arg)
{
int n, i, w, h;
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Client *c;
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w = sw - mw;
arrange = dotile;
for(n = 0, c = clients; c; c = c->next)
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if(c->tags[tsel] && !c->isfloat)
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n++;
if(n > 1)
h = (sh - bh) / (n - 1);
else
h = sh - bh;
for(i = 0, c = clients; c; c = c->next) {
if(c->tags[tsel]) {
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if(c->isfloat) {
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higher(c);
resize(c, True, TopLeft);
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continue;
}
if(n == 1) {
c->x = sx;
c->y = sy + bh;
c->w = sw - 2 * c->border;
c->h = sh - 2 * c->border - bh;
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}
else if(i == 0) {
c->x = sx;
c->y = sy + bh;
c->w = mw - 2 * c->border;
c->h = sh - 2 * c->border - bh;
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}
else if(h > bh) {
c->x = sx + mw;
c->y = sy + (i - 1) * h + bh;
c->w = w - 2 * c->border;
c->h = h - 2 * c->border;
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}
else { /* fallback if h < bh */
c->x = sx + mw;
c->y = sy + bh;
c->w = w - 2 * c->border;
c->h = sh - 2 * c->border - bh;
}
resize(c, False, TopLeft);
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i++;
}
else
ban(c);
}
if(!sel || (sel && !sel->tags[tsel])) {
if((sel = getnext(clients, tsel))) {
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higher(sel);
focus(sel);
}
}
drawall();
}
Client *
getnext(Client *c, unsigned int t)
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{
for(; c && !c->tags[t]; c = c->next);
return c;
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}
void
heretag(Arg *arg)
{
int i;
Client *c;
if(arg->i == tsel)
return;
if(!(c = getnext(clients, arg->i)))
return;
for(i = 0; i < TLast; i++)
c->tags[i] = NULL;
c->tags[tsel] = tags[tsel];
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pop(c);
focus(c);
}
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void
replacetag(Arg *arg)
{
int i;
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if(!sel)
return;
for(i = 0; i < TLast; i++)
sel->tags[i] = NULL;
appendtag(arg);
}
void
settags(Client *c)
{
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char classinst[256];
static unsigned int len = rule ? sizeof(rule) / sizeof(rule[0]) : 0;
unsigned int i, j;
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regex_t regex;
regmatch_t tmp;
Bool matched = False;
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XClassHint ch;
if(!len) {
c->tags[tsel] = tags[tsel];
return;
}
if(XGetClassHint(dpy, c->win, &ch)) {
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snprintf(classinst, sizeof(classinst), "%s:%s",
ch.res_class ? ch.res_class : "",
ch.res_name ? ch.res_name : "");
for(i = 0; !matched && i < len; i++) {
if(!regcomp(&regex, rule[i].pattern, 0)) {
if(!regexec(&regex, classinst, 1, &tmp, 0)) {
for(j = 0; j < TLast; j++) {
if(rule[i].tags[j])
matched = True;
c->tags[j] = rule[i].tags[j];
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}
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c->isfloat = rule[i].isfloat;
}
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regfree(&regex);
}
}
if(ch.res_class)
XFree(ch.res_class);
if(ch.res_name)
XFree(ch.res_name);
}
if(!matched)
c->tags[tsel] = tags[tsel];
}
void
view(Arg *arg)
{
tsel = arg->i;
arrange(NULL);
drawall();
}