dwm/main.c

296 lines
7.7 KiB
C
Raw Normal View History

2007-05-30 06:19:28 -04:00
/* See LICENSE file for copyright and license details. */
#include "dwm.h"
#include <errno.h>
#include <locale.h>
2006-07-10 10:38:18 -04:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/select.h>
2006-07-10 10:38:18 -04:00
#include <X11/cursorfont.h>
#include <X11/keysym.h>
2006-07-10 10:38:18 -04:00
#include <X11/Xatom.h>
#include <X11/Xproto.h>
2007-08-15 13:27:32 -04:00
#include <X11/Xutil.h>
2006-07-10 10:38:18 -04:00
/* extern */
2007-01-14 16:32:26 -05:00
char stext[256];
2007-02-21 05:49:06 -05:00
int screen, sx, sy, sw, sh, wax, way, waw, wah;
unsigned int ntags;
unsigned int numlockmask = 0;
Atom wmatom[WMLast], netatom[NetLast];
2007-08-17 15:12:55 -04:00
Bool *seltags;
2007-01-23 11:12:15 -05:00
Bool selscreen = True;
Client *clients = NULL;
Client *sel = NULL;
Client *stack = NULL;
Cursor cursor[CurLast];
Display *dpy;
Window root;
/* static */
2006-07-10 10:38:18 -04:00
2006-07-15 10:30:50 -04:00
static int (*xerrorxlib)(Display *, XErrorEvent *);
2006-08-16 03:31:41 -04:00
static Bool otherwm, readin;
static Bool running = True;
2006-07-10 10:38:18 -04:00
static void
2006-09-25 02:21:51 -04:00
cleanup(void) {
2006-08-16 03:31:41 -04:00
close(STDIN_FILENO);
2007-01-02 10:25:01 -05:00
while(stack) {
2007-06-04 05:37:33 -04:00
unban(stack);
unmanage(stack);
}
2006-08-15 03:37:12 -04:00
if(dc.font.set)
XFreeFontSet(dpy, dc.font.set);
else
XFreeFont(dpy, dc.font.xfont);
2006-08-15 01:31:42 -04:00
XUngrabKey(dpy, AnyKey, AnyModifier, root);
2006-08-15 03:37:12 -04:00
XFreePixmap(dpy, dc.drawable);
XFreeGC(dpy, dc.gc);
2006-08-16 13:25:29 -04:00
XDestroyWindow(dpy, barwin);
2006-12-06 05:19:06 -05:00
XFreeCursor(dpy, cursor[CurNormal]);
XFreeCursor(dpy, cursor[CurResize]);
XFreeCursor(dpy, cursor[CurMove]);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
2006-08-15 01:31:42 -04:00
XSync(dpy, False);
2007-08-17 15:12:55 -04:00
free(seltags);
}
2006-07-10 10:38:18 -04:00
static long
getstate(Window w) {
int format, status;
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom real;
status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
&real, &format, &n, &extra, (unsigned char **)&p);
if(status != Success)
return -1;
if(n != 0)
result = *p;
XFree(p);
return result;
}
static void
scan(void) {
unsigned int i, num;
Window *wins, d1, d2;
XWindowAttributes wa;
wins = NULL;
if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
for(i = 0; i < num; i++) {
if(!XGetWindowAttributes(dpy, wins[i], &wa)
|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
continue;
if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
manage(wins[i], &wa);
}
for(i = 0; i < num; i++) { /* now the transients */
if(!XGetWindowAttributes(dpy, wins[i], &wa))
continue;
if(XGetTransientForHint(dpy, wins[i], &d1)
&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
manage(wins[i], &wa);
}
}
if(wins)
XFree(wins);
}
static void
2006-09-25 02:21:51 -04:00
setup(void) {
int i, j;
unsigned int mask;
Window w;
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init atoms */
wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
PropModeReplace, (unsigned char *) netatom, NetLast);
/* init cursors */
cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for (i = 0; i < 8; i++)
for (j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
2006-12-06 05:19:06 -05:00
XFreeModifiermap(modmap);
/* select for events */
wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
| EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
wa.cursor = cursor[CurNormal];
XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
XSelectInput(dpy, root, wa.event_mask);
grabkeys();
2007-02-19 10:40:36 -05:00
compileregs();
for(ntags = 0; tags[ntags]; ntags++);
2007-08-17 15:12:55 -04:00
seltags = emallocz(sizeof(Bool) * ntags);
seltags[0] = True;
/* geometry */
2007-02-21 05:49:06 -05:00
sx = sy = 0;
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
2007-02-19 10:40:36 -05:00
initlayouts();
initbar();
/* multihead support */
2007-01-23 11:12:15 -05:00
selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
}
/*
* Startup Error handler to check if another window manager
* is already running.
*/
static int
xerrorstart(Display *dsply, XErrorEvent *ee) {
otherwm = True;
return -1;
}
/* extern */
Bool
gettextprop(Window w, Atom atom, char *text, unsigned int size) {
char **list = NULL;
int n;
XTextProperty name;
if(!text || size == 0)
return False;
text[0] = '\0';
XGetTextProperty(dpy, w, &name, atom);
if(!name.nitems)
return False;
if(name.encoding == XA_STRING)
strncpy(text, (char *)name.value, size - 1);
else {
if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
&& n > 0 && *list)
{
strncpy(text, *list, size - 1);
XFreeStringList(list);
}
}
text[size - 1] = '\0';
XFree(name.value);
return True;
}
void
quit(const char *arg) {
2006-08-16 03:31:41 -04:00
readin = running = False;
2006-07-10 10:38:18 -04:00
}
/* There's no way to check accesses to destroyed windows, thus those cases are
* ignored (especially on UnmapNotify's). Other types of errors call Xlibs
* default error handler, which may call exit.
2006-07-15 10:30:50 -04:00
*/
int
xerror(Display *dpy, XErrorEvent *ee) {
2006-07-15 10:30:50 -04:00
if(ee->error_code == BadWindow
2006-07-20 06:18:06 -04:00
|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2006-07-15 10:30:50 -04:00
return 0;
fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2006-07-20 06:18:06 -04:00
ee->request_code, ee->error_code);
return xerrorxlib(dpy, ee); /* may call exit */
2006-07-12 10:00:51 -04:00
}
2006-07-10 10:38:18 -04:00
int
main(int argc, char *argv[]) {
char *p;
int r, xfd;
2006-07-20 06:18:06 -04:00
fd_set rd;
2007-02-19 09:23:35 -05:00
XEvent ev;
2006-07-10 10:38:18 -04:00
if(argc == 2 && !strcmp("-v", argv[1]))
eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
else if(argc != 1)
eprint("usage: dwm [-v]\n");
setlocale(LC_CTYPE, "");
2007-02-19 15:17:54 -05:00
if(!(dpy = XOpenDisplay(0)))
2006-08-05 07:10:09 -04:00
eprint("dwm: cannot open display\n");
xfd = ConnectionNumber(dpy);
2006-07-10 10:38:18 -04:00
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
2006-07-15 10:30:50 -04:00
otherwm = False;
XSetErrorHandler(xerrorstart);
2006-08-05 07:10:09 -04:00
/* this causes an error if some other window manager is running */
2006-07-10 10:38:18 -04:00
XSelectInput(dpy, root, SubstructureRedirectMask);
2006-07-15 12:11:14 -04:00
XSync(dpy, False);
2006-07-15 10:30:50 -04:00
if(otherwm)
eprint("dwm: another window manager is already running\n");
2006-07-10 10:38:18 -04:00
2006-08-15 01:31:42 -04:00
XSync(dpy, False);
2006-07-15 12:11:14 -04:00
XSetErrorHandler(NULL);
2006-07-15 10:30:50 -04:00
xerrorxlib = XSetErrorHandler(xerror);
2006-08-14 09:11:02 -04:00
XSync(dpy, False);
setup();
2007-09-15 06:36:42 -04:00
drawbar();
2006-07-15 10:30:50 -04:00
scan();
2006-07-10 10:38:18 -04:00
2006-08-07 06:12:56 -04:00
/* main event loop, also reads status text from stdin */
2006-08-10 09:19:25 -04:00
XSync(dpy, False);
2006-08-16 03:31:41 -04:00
readin = True;
2006-07-14 06:09:05 -04:00
while(running) {
FD_ZERO(&rd);
if(readin)
FD_SET(STDIN_FILENO, &rd);
FD_SET(xfd, &rd);
if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
if(errno == EINTR)
continue;
eprint("select failed\n");
}
if(FD_ISSET(STDIN_FILENO, &rd)) {
switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
case -1:
strncpy(stext, strerror(errno), sizeof stext - 1);
stext[sizeof stext - 1] = '\0';
readin = False;
break;
case 0:
strncpy(stext, "EOF", 4);
readin = False;
break;
default:
2006-11-26 09:43:16 -05:00
for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
for(; p >= stext && *p != '\n'; --p);
if(p > stext)
strncpy(stext, p + 1, sizeof stext);
}
2007-09-15 06:36:42 -04:00
drawbar();
}
while(XPending(dpy)) {
XNextEvent(dpy, &ev);
if(handler[ev.type])
(handler[ev.type])(&ev); /* call handler */
}
2006-07-10 16:16:48 -04:00
}
2006-07-10 10:38:18 -04:00
cleanup();
XCloseDisplay(dpy);
return 0;
}