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path: root/util.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"

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>

/* static */

static void
bad_malloc(unsigned int size)
{
	fprintf(stderr, "fatal: could not malloc() %d bytes\n",
			(int) size);
	exit(EXIT_FAILURE);
}

/* extern */

void *
emallocz(unsigned int size)
{
	void *res = calloc(1, size);

	if(!res)
		bad_malloc(size);
	return res;
}

void
eprint(const char *errstr, ...) {
	va_list ap;

	va_start(ap, errstr);
	vfprintf(stderr, errstr, ap);
	va_end(ap);
	exit(EXIT_FAILURE);
}

void
spawn(Arg *arg)
{
	char **argv = (char **)arg->argv;

	if(!argv || !argv[0])
		return;
	if(fork() == 0) {
		if(fork() == 0) {
			if(dpy)
				close(ConnectionNumber(dpy));
			setsid();
			execvp(argv[0], argv);
			fprintf(stderr, "dwm: execvp %s", argv[0]);
			perror(" failed");
		}
		exit(EXIT_FAILURE);
	}
	wait(0);
}
ss="cm">/* * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> * See LICENSE file for license details. */ #include "dwm.h" /* static */ static Client * minclient() { Client *c, *min; if((clients && clients->isfloat) || arrange == dofloat) return clients; /* don't touch floating order */ for(min = c = clients; c; c = c->next) if(c->weight < min->weight) min = c; return min; } static void reorder() { Client *c, *newclients, *tail; newclients = tail = NULL; while((c = minclient())) { detach(c); if(tail) { c->prev = tail; tail->next = c; tail = c; } else tail = newclients = c; } clients = newclients; } static Client * nexttiled(Client *c) { for(c = getnext(c); c && c->isfloat; c = getnext(c->next)); return c; } /* extern */ void (*arrange)(Arg *) = DEFMODE; void detach(Client *c) { if(c->prev) c->prev->next = c->next; if(c->next) c->next->prev = c->prev; if(c == clients) clients = c->next; c->next = c->prev = NULL; } void dofloat(Arg *arg) { Client *c; maximized = False; for(c = clients; c; c = c->next) { if(isvisible(c)) { resize(c, True, TopLeft); } else ban(c); } if(!sel || !isvisible(sel)) { for(c = stack; c && !isvisible(c); c = c->snext); focus(c); } restack(); } void dotile(Arg *arg) { int h, i, n, w; Client *c; maximized = False; w = sw - mw; for(n = 0, c = clients; c; c = c->next) if(isvisible(c) && !c->isfloat) n++; if(n > 1) h = (sh - bh) / (n - 1); else h = sh - bh; for(i = 0, c = clients; c; c = c->next) { if(isvisible(c)) { if(c->isfloat) { resize(c, True, TopLeft); continue; } if(n == 1) { c->x = sx; c->y = sy + bh; c->w = sw - 2; c->h = sh - 2 - bh; } else if(i == 0) { c->x = sx; c->y = sy + bh; c->w = mw - 2; c->h = sh - 2 - bh; } else if(h > bh) { c->x = sx + mw; c->y = sy + (i - 1) * h + bh; c->w = w - 2; if(i + 1 == n) c->h = sh - c->y - 2; else c->h = h - 2; } else { /* fallback if h < bh */ c->x = sx + mw; c->y = sy + bh; c->w = w - 2; c->h = sh - 2 - bh; } resize(c, False, TopLeft); i++; } else ban(c); } if(!sel || !isvisible(sel)) { for(c = stack; c && !isvisible(c); c = c->snext); focus(c); } restack(); } void focusnext(Arg *arg) { Client *c; if(!sel) return; if(!(c = getnext(sel->next))) c = getnext(clients); if(c) { focus(c); restack(); } } void focusprev(Arg *arg) { Client *c; if(!sel) return; if(!(c = getprev(sel->prev))) { for(c = clients; c && c->next; c = c->next); c = getprev(c); } if(c) { focus(c); restack(); } } Bool isvisible(Client *c) { unsigned int i; for(i = 0; i < ntags; i++) if(c->tags[i] && seltag[i]) return True; return False; } void resizecol(Arg *arg) { unsigned int n; Client *c; for(n = 0, c = clients; c; c = c->next) if(isvisible(c) && !c->isfloat) n++; if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized) return; if(sel == getnext(clients)) { if(mw + arg->i > sw - 100 || mw + arg->i < 100) return; mw += arg->i; } else { if(mw - arg->i > sw - 100 || mw - arg->i < 100) return; mw -= arg->i; } arrange(NULL); } void restack() { Client *c; XEvent ev; if(!sel) { drawstatus(); return; } if(sel->isfloat || arrange == dofloat) { XRaiseWindow(dpy, sel->win); XRaiseWindow(dpy, sel->twin); } if(arrange != dofloat) for(c = nexttiled(clients); c; c = nexttiled(c->next)) { XLowerWindow(dpy, c->twin); XLowerWindow(dpy, c->win); } drawall(); XSync(dpy, False); while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); } void togglemode(Arg *arg) { arrange = (arrange == dofloat) ? dotile : dofloat; if(sel) arrange(NULL); else drawstatus(); } void toggleview(Arg *arg) { unsigned int i; seltag[arg->i] = !seltag[arg->i]; for(i = 0; i < ntags && !seltag[i]; i++); if(i == ntags) seltag[arg->i] = True; /* cannot toggle last view */ reorder(); arrange(NULL); } void view(Arg *arg) { unsigned int i; for(i = 0; i < ntags; i++) seltag[i] = False; seltag[arg->i] = True; reorder(); arrange(NULL); } void viewall(Arg *arg) { unsigned int i; for(i = 0; i < ntags; i++) seltag[i] = True; reorder(); arrange(NULL); } void zoom(Arg *arg) { unsigned int n; Client *c; for(n = 0, c = clients; c; c = c->next) if(isvisible(c) && !c->isfloat) n++; if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized) return; if((c = sel) == nexttiled(clients)) if(!(c = nexttiled(c->next))) return; detach(c); if(clients) clients->prev = c; c->next = clients; clients = c; focus(c); arrange(NULL); }