main.c
author arg@mig29
Sun, 03 Dec 2006 11:21:25 +0100
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parent 583 f4285a97e3e6
child 616 f617c75a8405
permissions -rw-r--r--
applied Manuel's regex patch
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
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 * See LICENSE file for license details.
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 */
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#include "dwm.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <X11/cursorfont.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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#include <X11/Xproto.h>
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/* extern */
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char stext[1024];
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Bool *seltag;
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int bx, by, bw, bh, bmw, masterd, screen, sx, sy, sw, sh, wax, way, waw, wah;
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unsigned int master, ntags, numlockmask;
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Atom wmatom[WMLast], netatom[NetLast];
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Bool running = True;
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Bool issel = True;
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Client *clients = NULL;
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Client *sel = NULL;
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Client *stack = NULL;
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Cursor cursor[CurLast];
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Display *dpy;
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DC dc = {0};
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Window root, barwin;
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/* static */
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static int (*xerrorxlib)(Display *, XErrorEvent *);
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static Bool otherwm, readin;
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static void
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cleanup(void) {
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	close(STDIN_FILENO);
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	while(sel) {
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		resize(sel, True, TopLeft);
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		unmanage(sel);
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	}
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	if(dc.font.set)
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		XFreeFontSet(dpy, dc.font.set);
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	else
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		XFreeFont(dpy, dc.font.xfont);
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	XUngrabKey(dpy, AnyKey, AnyModifier, root);
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	XFreePixmap(dpy, dc.drawable);
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	XFreeGC(dpy, dc.gc);
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	XDestroyWindow(dpy, barwin);
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	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
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	XSync(dpy, False);
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	free(seltag);
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}
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static void
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scan(void) {
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	unsigned int i, num;
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	Window *wins, d1, d2;
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	XWindowAttributes wa;
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	wins = NULL;
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	if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
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		for(i = 0; i < num; i++) {
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			if(!XGetWindowAttributes(dpy, wins[i], &wa))
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				continue;
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			if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
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				continue;
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			if(wa.map_state == IsViewable)
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				manage(wins[i], &wa);
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		}
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	}
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	if(wins)
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		XFree(wins);
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}
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static void
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setup(void) {
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	int i, j;
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	unsigned int mask;
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	Window w;
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	XModifierKeymap *modmap;
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	XSetWindowAttributes wa;
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	/* init atoms */
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	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
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	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
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	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
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	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
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	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
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			PropModeReplace, (unsigned char *) netatom, NetLast);
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	/* init cursors */
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	cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
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	cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
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	cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
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	/* init modifier map */
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	modmap = XGetModifierMapping(dpy);
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	for (i = 0; i < 8; i++) {
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		for (j = 0; j < modmap->max_keypermod; j++) {
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			if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
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				numlockmask = (1 << i);
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		}
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	}
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	XFree(modmap);
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	/* select for events */
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	wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
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		| EnterWindowMask | LeaveWindowMask;
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	wa.cursor = cursor[CurNormal];
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	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
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	grabkeys();
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	initrregs();
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	for(ntags = 0; tags[ntags]; ntags++);
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	seltag = emallocz(sizeof(Bool) * ntags);
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	seltag[0] = True;
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	/* style */
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	dc.norm[ColBG] = getcolor(NORMBGCOLOR);
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	dc.norm[ColFG] = getcolor(NORMFGCOLOR);
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	dc.sel[ColBG] = getcolor(SELBGCOLOR);
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	dc.sel[ColFG] = getcolor(SELFGCOLOR);
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	dc.status[ColBG] = getcolor(STATUSBGCOLOR);
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	dc.status[ColFG] = getcolor(STATUSFGCOLOR);
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	setfont(FONT);
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   126
	/* geometry */
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   127
	bmw = textw(TILESYMBOL) > textw(FLOATSYMBOL) ?  textw(TILESYMBOL) : textw(FLOATSYMBOL);
333
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   128
	sx = sy = 0;
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   129
	sw = DisplayWidth(dpy, screen);
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   130
	sh = DisplayHeight(dpy, screen);
524
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   131
	master = MASTER;
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   132
	/* bar */
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   133
	bx = sx;
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	by = sy;
333
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   135
	bw = sw;
353
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   136
	dc.h = bh = dc.font.height + 2;
333
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   137
	wa.override_redirect = 1;
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   138
	wa.background_pixmap = ParentRelative;
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   139
	wa.event_mask = ButtonPressMask | ExposureMask;
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   140
	barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
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   141
			CopyFromParent, DefaultVisual(dpy, screen),
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   142
			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
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   143
	XDefineCursor(dpy, barwin, cursor[CurNormal]);
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   144
	XMapRaised(dpy, barwin);
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   145
	strcpy(stext, "dwm-"VERSION);
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   146
	/* windowarea */
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   147
	wax = sx;
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   148
	way = sy + bh;
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   149
	wah = sh - bh;
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   150
	waw = sw;
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   151
	/* pixmap for everything */
333
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	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
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	dc.gc = XCreateGC(dpy, root, 0, 0);
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93192711a36a changing tag indicator through underline
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   154
	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
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   155
	/* multihead support */
333
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	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
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   157
}
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   158
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   159
/*
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 * Startup Error handler to check if another window manager
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 * is already running.
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   162
 */
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static int
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xerrorstart(Display *dsply, XErrorEvent *ee) {
76
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	otherwm = True;
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	return -1;
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   167
}
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   168
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/* extern */
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   170
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int
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getproto(Window w) {
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   173
	int i, format, protos, status;
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	unsigned long extra, res;
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   175
	Atom *protocols, real;
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   176
329
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   177
	protos = 0;
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	status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
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			XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
328
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	if(status != Success || protocols == 0)
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		return protos;
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	for(i = 0; i < res; i++)
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		if(protocols[i] == wmatom[WMDelete])
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			protos |= PROTODELWIN;
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   185
	free(protocols);
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   186
	return protos;
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   187
}
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   188
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void
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sendevent(Window w, Atom a, long value) {
13
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   191
	XEvent e;
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   192
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   193
	e.type = ClientMessage;
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   194
	e.xclient.window = w;
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   195
	e.xclient.message_type = a;
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   196
	e.xclient.format = 32;
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   197
	e.xclient.data.l[0] = value;
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   198
	e.xclient.data.l[1] = CurrentTime;
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   199
	XSendEvent(dpy, w, False, NoEventMask, &e);
79
aabebd6e61f3 fixed XSync handling and finished man page
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	XSync(dpy, False);
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   201
}
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   202
76
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   203
void
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   204
quit(Arg *arg) {
302
3b11e32e8d7e we close stdin as well
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   205
	readin = running = False;
75
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   206
}
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   207
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   208
/* There's no way to check accesses to destroyed windows, thus those cases are
84
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   209
 * ignored (especially on UnmapNotify's).  Other types of errors call Xlibs
455
4e3e22673073 fixed some other comments, now also the code side seems to be at a level to be reviewed by experienced programmers
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   210
 * default error handler, which may call exit.
0
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   211
 */
10
703255003abb changed how manage client works
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   212
int
461
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   213
xerror(Display *dpy, XErrorEvent *ee) {
75
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   214
	if(ee->error_code == BadWindow
123
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   215
	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
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   216
	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
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   217
	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
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   218
	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
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   219
	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
458
81fcd7ddafee applied Christof Musik's multihead patch for a pathologic cornercase
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   220
	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
81fcd7ddafee applied Christof Musik's multihead patch for a pathologic cornercase
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   221
	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
0
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   222
		return 0;
34
cd30cce52b78 added logo+description
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diff changeset
   223
	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
123
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   224
		ee->request_code, ee->error_code);
455
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   225
	return xerrorxlib(dpy, ee); /* may call exit */
27
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diff changeset
   226
}
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   227
0
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int
461
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   229
main(int argc, char *argv[]) {
581
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
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   230
	char *p;
333
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   231
	int r, xfd;
59
5d4653de9a1c implemented dwm reading status text from stdin
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   232
	fd_set rd;
0
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   233
137
77922a389fa8 simplified main.c, switching back to single urxvt usage
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parents: 126
diff changeset
   234
	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
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diff changeset
   235
		fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
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   236
		exit(EXIT_SUCCESS);
0
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   237
	}
137
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   238
	else if(argc != 1)
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   239
		eprint("usage: dwm [-v]\n");
0
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   240
	dpy = XOpenDisplay(0);
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   241
	if(!dpy)
197
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   242
		eprint("dwm: cannot open display\n");
265
573b1c4a71a4 reducing ConnectionNumber calls to a bare minimum
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diff changeset
   243
	xfd = ConnectionNumber(dpy);
0
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   244
	screen = DefaultScreen(dpy);
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   245
	root = RootWindow(dpy, screen);
75
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   246
	otherwm = False;
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diff changeset
   247
	XSetErrorHandler(xerrorstart);
197
c13f374f836c slight fix
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diff changeset
   248
	/* this causes an error if some other window manager is running */
0
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parents:
diff changeset
   249
	XSelectInput(dpy, root, SubstructureRedirectMask);
78
0d71fb80b592 changing XFlush into XSync
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diff changeset
   250
	XSync(dpy, False);
75
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parents: 74
diff changeset
   251
	if(otherwm)
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   252
		eprint("dwm: another window manager is already running\n");
0
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diff changeset
   253
292
4aa632b6ba66 changed main event loop
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diff changeset
   254
	XSync(dpy, False);
78
0d71fb80b592 changing XFlush into XSync
Anselm R. Garbe <garbeam@wmii.de>
parents: 77
diff changeset
   255
	XSetErrorHandler(NULL);
75
f08271b7cb20 rearranged several stuff
Anselm R. Garbe <garbeam@wmii.de>
parents: 74
diff changeset
   256
	xerrorxlib = XSetErrorHandler(xerror);
275
425cd4490c1e some other small fixes
Anselm R.Garbe <arg@10ksloc.org>
parents: 274
diff changeset
   257
	XSync(dpy, False);
333
827f8f6c9e97 separated setup stuff into main.c:setup() - this makes main() more readable
Anselm R. Garbe <arg@10kloc.org>
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diff changeset
   258
	setup();
74
5370ef170cc9 sanitized names
Anselm R. Garbe <garbeam@wmii.de>
parents: 73
diff changeset
   259
	drawstatus();
75
f08271b7cb20 rearranged several stuff
Anselm R. Garbe <garbeam@wmii.de>
parents: 74
diff changeset
   260
	scan();
3
e969f3575b7a several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents: 2
diff changeset
   261
214
51ac019cf587 small fix of a comment
arg@10ksloc.org
parents: 203
diff changeset
   262
	/* main event loop, also reads status text from stdin */
242
cd15de32e173 prepared 0.8
Anselm R.Garbe <arg@10ksloc.org>
parents: 237
diff changeset
   263
	XSync(dpy, False);
292
4aa632b6ba66 changed main event loop
Anselm R.Garbe <arg@10ksloc.org>
parents: 291
diff changeset
   264
	procevent();
302
3b11e32e8d7e we close stdin as well
Anselm R.Garbe <arg@10ksloc.org>
parents: 295
diff changeset
   265
	readin = True;
5
e5018cae273f added several other stuff
Anselm R. Garbe <garbeam@wmii.de>
parents: 3
diff changeset
   266
	while(running) {
59
5d4653de9a1c implemented dwm reading status text from stdin
Anselm R. Garbe <garbeam@wmii.de>
parents: 58
diff changeset
   267
		FD_ZERO(&rd);
164
21071ae1fe68 made fullscreen apps working fine in floating mode (there is no sane way to make them work in tiled mode, thus I switch to floating mode if I run such kind of app), also fixed the xterm issue reported by Sander
arg@10ksloc.org
parents: 162
diff changeset
   268
		if(readin)
21071ae1fe68 made fullscreen apps working fine in floating mode (there is no sane way to make them work in tiled mode, thus I switch to floating mode if I run such kind of app), also fixed the xterm issue reported by Sander
arg@10ksloc.org
parents: 162
diff changeset
   269
			FD_SET(STDIN_FILENO, &rd);
265
573b1c4a71a4 reducing ConnectionNumber calls to a bare minimum
Anselm R.Garbe <arg@10ksloc.org>
parents: 262
diff changeset
   270
		FD_SET(xfd, &rd);
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   271
		if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   272
			if(errno == EINTR)
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   273
				continue;
581
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
arg@mig29
parents: 580
diff changeset
   274
			eprint("select failed\n");
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   275
		}
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   276
		if(FD_ISSET(STDIN_FILENO, &rd)) {
581
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
arg@mig29
parents: 580
diff changeset
   277
			switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   278
			case -1:
581
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
arg@mig29
parents: 580
diff changeset
   279
				strncpy(stext, strerror(errno), sizeof stext - 1);
583
f4285a97e3e6 applied Jukka's patch preventing some cornercases and making the EOF error message correct
arg@mig29
parents: 582
diff changeset
   280
				stext[sizeof stext - 1] = '\0';
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   281
				readin = False;
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   282
				break;
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   283
			case 0:
583
f4285a97e3e6 applied Jukka's patch preventing some cornercases and making the EOF error message correct
arg@mig29
parents: 582
diff changeset
   284
				strncpy(stext, "EOF", 4);
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   285
				readin = False;
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   286
				break;
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   287
			default:
582
70472540c443 applied yet another proposal of Manuel
arg@mig29
parents: 581
diff changeset
   288
				for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
70472540c443 applied yet another proposal of Manuel
arg@mig29
parents: 581
diff changeset
   289
				for(p = stext + strlen(stext) - 1; p >= stext && *p != '\n'; --p);
581
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
arg@mig29
parents: 580
diff changeset
   290
				if(p > stext)
601842ee4484 applied Jukka's sizeof K&R compliance patch, applied Manuels' last-line printage proposal for stdin reading.
arg@mig29
parents: 580
diff changeset
   291
					strncpy(stext, p + 1, sizeof stext);
59
5d4653de9a1c implemented dwm reading status text from stdin
Anselm R. Garbe <garbeam@wmii.de>
parents: 58
diff changeset
   292
			}
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   293
			drawstatus();
59
5d4653de9a1c implemented dwm reading status text from stdin
Anselm R. Garbe <garbeam@wmii.de>
parents: 58
diff changeset
   294
		}
578
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   295
		if(FD_ISSET(xfd, &rd))
8cb54d02a5b6 applied Manuels patch (thanks to Manuel!)
arg@mig29
parents: 570
diff changeset
   296
			procevent();
5
e5018cae273f added several other stuff
Anselm R. Garbe <garbeam@wmii.de>
parents: 3
diff changeset
   297
	}
0
491f34c11291 initial import
Anselm R. Garbe <garbeam@wmii.de>
parents:
diff changeset
   298
	cleanup();
491f34c11291 initial import
Anselm R. Garbe <garbeam@wmii.de>
parents:
diff changeset
   299
	XCloseDisplay(dpy);
491f34c11291 initial import
Anselm R. Garbe <garbeam@wmii.de>
parents:
diff changeset
   300
	return 0;
491f34c11291 initial import
Anselm R. Garbe <garbeam@wmii.de>
parents:
diff changeset
   301
}