X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/06dc514bc7327f1a2a35cb533bcf18715305da44..58beead14d79ba42acc6357d450c4125e3e8407a:/main.c

diff --git a/main.c b/main.c
index dc8a6e7..067f383 100644
--- a/main.c
+++ b/main.c
@@ -1,42 +1,72 @@
-/*
- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
 
 #include "dwm.h"
-
 #include <errno.h>
+#include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <sys/select.h>
 #include <X11/cursorfont.h>
+#include <X11/keysym.h>
 #include <X11/Xatom.h>
 #include <X11/Xproto.h>
 
+/* extern */
+
+char stext[1024], mtext[32];
+Bool *seltag;
+int bx, by, bw, bh, bmw, masterd, screen, sx, sy, sw, sh, wax, way, waw, wah;
+unsigned int master, nmaster, ntags, numlockmask;
+Atom wmatom[WMLast], netatom[NetLast];
+Bool running = True;
+Bool issel = True;
+Client *clients = NULL;
+Client *sel = NULL;
+Client *stack = NULL;
+Cursor cursor[CurLast];
+Display *dpy;
+DC dc = {0};
+Window root, barwin;
 
 /* static */
 
 static int (*xerrorxlib)(Display *, XErrorEvent *);
-static Bool otherwm;
+static Bool otherwm, readin;
 
 static void
-cleanup()
-{
-	while(sel) {
-		resize(sel, True, TopLeft);
-		unmanage(sel);
+cleanup(void) {
+	close(STDIN_FILENO);
+	while(stack) {
+		resize(stack, True, TopLeft);
+		unmanage(stack);
 	}
+	if(dc.font.set)
+		XFreeFontSet(dpy, dc.font.set);
+	else
+		XFreeFont(dpy, dc.font.xfont);
+	XUngrabKey(dpy, AnyKey, AnyModifier, root);
+	XFreePixmap(dpy, dc.drawable);
+	XFreeGC(dpy, dc.gc);
+	XDestroyWindow(dpy, barwin);
+	XFreeCursor(dpy, cursor[CurNormal]);
+	XFreeCursor(dpy, cursor[CurResize]);
+	XFreeCursor(dpy, cursor[CurMove]);
 	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+	XSync(dpy, False);
+	free(seltag);
 }
 
 static void
-scan()
-{
+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))
@@ -51,23 +81,85 @@ scan()
 		XFree(wins);
 }
 
-static int
-win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
-{
-	int status, format;
-	unsigned long res, extra;
-	Atom real;
-
-	status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
-			&res, &extra, prop);
+static void
+setup(void) {
+	int i, j;
+	unsigned int mask;
+	Window w;
+	XModifierKeymap *modmap;
+	XSetWindowAttributes wa;
 
-	if(status != Success || *prop == 0) {
-		return 0;
-	}
-	if(res == 0) {
-		free((void *) *prop);
+	/* init atoms */
+	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
+	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", 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 */
+	numlockmask = 0;
+	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);
+		}
 	}
-	return res;
+	XFreeModifiermap(modmap);
+	/* select for events */
+	wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
+		| EnterWindowMask | LeaveWindowMask;
+	wa.cursor = cursor[CurNormal];
+	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
+	grabkeys();
+	initrregs();
+	for(ntags = 0; tags[ntags]; ntags++);
+	seltag = emallocz(sizeof(Bool) * ntags);
+	seltag[0] = True;
+	/* style */
+	dc.norm[ColBG] = getcolor(NORMBGCOLOR);
+	dc.norm[ColFG] = getcolor(NORMFGCOLOR);
+	dc.sel[ColBG] = getcolor(SELBGCOLOR);
+	dc.sel[ColFG] = getcolor(SELFGCOLOR);
+	dc.status[ColBG] = getcolor(STATUSBGCOLOR);
+	dc.status[ColFG] = getcolor(STATUSFGCOLOR);
+	setfont(FONT);
+	/* geometry */
+	sx = sy = 0;
+	sw = DisplayWidth(dpy, screen);
+	sh = DisplayHeight(dpy, screen);
+	master = MASTER;
+	nmaster = NMASTER;
+	updatemodetext();
+	/* bar */
+	bx = sx;
+	by = sy;
+	bw = sw;
+	dc.h = bh = dc.font.height + 2;
+	wa.override_redirect = 1;
+	wa.background_pixmap = ParentRelative;
+	wa.event_mask = ButtonPressMask | ExposureMask;
+	barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
+			CopyFromParent, DefaultVisual(dpy, screen),
+			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+	XDefineCursor(dpy, barwin, cursor[CurNormal]);
+	XMapRaised(dpy, barwin);
+	strcpy(stext, "dwm-"VERSION);
+	/* windowarea */
+	wax = sx;
+	way = sy + bh;
+	wah = sh - bh;
+	waw = sw;
+	/* pixmap for everything */
+	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
+	dc.gc = XCreateGC(dpy, root, 0, 0);
+	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
+	/* multihead support */
+	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
 }
 
 /*
@@ -75,52 +167,33 @@ win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
  * is already running.
  */
 static int
-xerrorstart(Display *dsply, XErrorEvent *ee)
-{
+xerrorstart(Display *dsply, XErrorEvent *ee) {
 	otherwm = True;
 	return -1;
 }
 
 /* extern */
 
-char stext[1024];
-/* CUSTOMIZE */
-int tsel = Tdev; /* default tag */
-/* END CUSTOMIZE */
-int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
-Atom wmatom[WMLast], netatom[NetLast];
-Bool running = True;
-Bool issel = True;
-Client *clients = NULL;
-Client *sel = NULL;
-Cursor cursor[CurLast];
-Display *dpy;
-DC dc = {0};
-Window root, barwin;
-
 int
-getproto(Window w)
-{
-	int protos = 0;
-	int i;
-	long res;
-	unsigned char *protocols;
-
-	res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
-	if(res <= 0) {
+getproto(Window w) {
+	int i, format, protos, status;
+	unsigned long extra, res;
+	Atom *protocols, real;
+
+	protos = 0;
+	status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
+			XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
+	if(status != Success || protocols == 0)
 		return protos;
-	}
-	for(i = 0; i < res; i++) {
+	for(i = 0; i < res; i++)
 		if(protocols[i] == wmatom[WMDelete])
-			protos |= WM_PROTOCOL_DELWIN;
-	}
-	free((char *) protocols);
+			protos |= PROTODELWIN;
+	free(protocols);
 	return protos;
 }
 
 void
-sendevent(Window w, Atom a, long value)
-{
+sendevent(Window w, Atom a, long value) {
 	XEvent e;
 
 	e.type = ClientMessage;
@@ -134,169 +207,102 @@ sendevent(Window w, Atom a, long value)
 }
 
 void
-quit(Arg *arg)
-{
-	running = False;
+quit(Arg *arg) {
+	readin = running = False;
 }
 
-/*
- * There's no way to check accesses to destroyed windows, thus those cases are
+/* 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 calls exit().
+ * default error handler, which may call exit.
  */
 int
-xerror(Display *dpy, XErrorEvent *ee)
-{
+xerror(Display *dpy, XErrorEvent *ee) {
 	if(ee->error_code == BadWindow
 	|| (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_GrabKey && ee->error_code == BadAccess)
+	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
 		return 0;
 	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
 		ee->request_code, ee->error_code);
-	return xerrorxlib(dpy, ee); /* may call exit() */
+	return xerrorxlib(dpy, ee); /* may call exit */
 }
 
 int
-main(int argc, char *argv[])
-{
-	int i, n;
-	unsigned int mask;
+main(int argc, char *argv[]) {
+	char *p;
+	int r, xfd;
 	fd_set rd;
-	Bool readstdin = True;
-	Window w;
-	XEvent ev;
-	XSetWindowAttributes wa;
 
-	for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
-		switch (argv[i][1]) {
-		default:
-			eprint("usage: dwm [-v]\n");
-			break;
-		case 'v':
-			fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
-			exit(EXIT_SUCCESS);
-			break;
-		}
+	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
+		fputs("dwm-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n", stdout);
+		exit(EXIT_SUCCESS);
 	}
-
+	else if(argc != 1)
+		eprint("usage: dwm [-v]\n");
+	setlocale(LC_CTYPE, "");
 	dpy = XOpenDisplay(0);
 	if(!dpy)
-		eprint("dwm: cannot connect X server\n");
-
+		eprint("dwm: cannot open display\n");
+	xfd = ConnectionNumber(dpy);
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
-
-	/* check if another WM is already running */
 	otherwm = False;
 	XSetErrorHandler(xerrorstart);
-	/* this causes an error if some other WM is running */
+	/* this causes an error if some other window manager is running */
 	XSelectInput(dpy, root, SubstructureRedirectMask);
 	XSync(dpy, False);
-
 	if(otherwm)
 		eprint("dwm: another window manager is already running\n");
 
+	XSync(dpy, False);
 	XSetErrorHandler(NULL);
 	xerrorxlib = XSetErrorHandler(xerror);
-
-	/* init atoms */
-	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
-	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", 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);
-
-	grabkeys();
-
-	/* style */
-	dc.bg = getcolor(BGCOLOR);
-	dc.fg = getcolor(FGCOLOR);
-	dc.border = getcolor(BORDERCOLOR);
-	setfont(FONT);
-
-	sx = sy = 0;
-	sw = DisplayWidth(dpy, screen);
-	sh = DisplayHeight(dpy, screen);
-	mw = (sw * MASTERW) / 100;
-
-	wa.override_redirect = 1;
-	wa.background_pixmap = ParentRelative;
-	wa.event_mask = ButtonPressMask | ExposureMask;
-
-	bx = by = 0;
-	bw = sw;
-	dc.h = bh = dc.font.height + 4;
-	barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
-			CopyFromParent, DefaultVisual(dpy, screen),
-			CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
-	XDefineCursor(dpy, barwin, cursor[CurNormal]);
-	XMapRaised(dpy, barwin);
-
-	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, root, 0, 0);
+	XSync(dpy, False);
+	setup();
 	drawstatus();
-
-	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
-
-	wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
-	wa.cursor = cursor[CurNormal];
-	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
-
-	strcpy(stext, "dwm-"VERSION);
 	scan();
 
-	/* main event loop, reads status text from stdin as well */
-Mainloop:
+	/* main event loop, also reads status text from stdin */
+	XSync(dpy, False);
+	procevent();
+	readin = True;
 	while(running) {
 		FD_ZERO(&rd);
-		if(readstdin)
+		if(readin)
 			FD_SET(STDIN_FILENO, &rd);
-		FD_SET(ConnectionNumber(dpy), &rd);
-
-		i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
-		if(i == -1 && errno == EINTR)
-			continue;
-		if(i < 0)
+		FD_SET(xfd, &rd);
+		if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
+			if(errno == EINTR)
+				continue;
 			eprint("select failed\n");
-		else if(i > 0) {
-			if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
-				while(XPending(dpy)) {
-					XNextEvent(dpy, &ev);
-					if(handler[ev.type])
-						(handler[ev.type])(&ev); /* call handler */
-				}
-			}
-			if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) {
-				i = n = 0;
-				for(;;) {
-					if((i = getchar()) == EOF) {
-						/* broken pipe/end of producer */
-						readstdin = False;
-						strcpy(stext, "broken pipe");
-						goto Mainloop;
-					}
-					if(i == '\n' || n >= sizeof(stext) - 1)
-						break;
-					stext[n++] = i;
-				}
-				stext[n] = 0;
-				drawstatus();
+		}
+		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:
+				for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
+				for(p = stext + strlen(stext) - 1; p >= stext && *p != '\n'; --p);
+				if(p > stext)
+					strncpy(stext, p + 1, sizeof stext);
 			}
+			drawstatus();
 		}
+		if(FD_ISSET(xfd, &rd))
+			procevent();
 	}
-
 	cleanup();
 	XCloseDisplay(dpy);
-
 	return 0;
 }