X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/24d91e3b8a6e173bf65d5dd611b164dcb6a01978..f17e898bd133f1bd8c530116b4b5bacb7ced5da9:/main.c

diff --git a/main.c b/main.c
index 545efe9..c6e67e9 100644
--- a/main.c
+++ b/main.c
@@ -15,14 +15,32 @@
 #include <X11/Xatom.h>
 #include <X11/Xproto.h>
 
+/* extern */
+
+char stext[1024];
+Bool *seltag;
+int bx, by, bw, bh, bmw, mw, screen, sx, sy, sw, sh;
+unsigned int ntags, numlockmask;
+Atom wmatom[WMLast], netatom[NetLast];
+Bool running = True;
+Bool issel = True;
+Bool maximized = False;
+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()
-{
+cleanup() {
+	close(STDIN_FILENO);
 	while(sel) {
 		resize(sel, True, TopLeft);
 		unmanage(sel);
@@ -32,16 +50,16 @@ cleanup()
 	else
 		XFreeFont(dpy, dc.font.xfont);
 	XUngrabKey(dpy, AnyKey, AnyModifier, root);
-	XDestroyWindow(dpy, barwin);
 	XFreePixmap(dpy, dc.drawable);
 	XFreeGC(dpy, dc.gc);
+	XDestroyWindow(dpy, barwin);
 	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
 	XSync(dpy, False);
+	free(seltag);
 }
 
 static void
-scan()
-{
+scan() {
 	unsigned int i, num;
 	Window *wins, d1, d2;
 	XWindowAttributes wa;
@@ -61,23 +79,81 @@ 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;
+static void
+setup() {
+	int i, j;
+	unsigned int mask;
+	Window w;
+	XModifierKeymap *modmap;
+	XSetWindowAttributes wa;
 
-	status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
-			&res, &extra, 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);
 
-	if(status != Success || *prop == 0) {
-		return 0;
-	}
-	if(res == 0) {
-		free((void *) *prop);
+	/* init cursors */
+	cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
+	cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
+	cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
+
+	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;
+	XFree(modmap);
+
+	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);
+
+	bmw = textw(FLOATSYMBOL) > textw(TILESYMBOL) ? textw(FLOATSYMBOL) : textw(TILESYMBOL);
+	sx = sy = 0;
+	sw = DisplayWidth(dpy, screen);
+	sh = DisplayHeight(dpy, screen);
+	mw = (sw * MASTERW) / 100;
+
+	bx = by = 0;
+	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);
+
+	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);
+
+	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
+	strcpy(stext, "dwm-"VERSION);
 }
 
 /*
@@ -85,52 +161,33 @@ 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];
-Bool *seltag;
-int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
-unsigned int ntags, numlockmask;
-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;
-	Atom *protocols;
-
-	res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L,
-			((unsigned char **)&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 |= PROTODELWIN;
-	}
-	free((char *) protocols);
+	free(protocols);
 	return protos;
 }
 
 void
-sendevent(Window w, Atom a, long value)
-{
+sendevent(Window w, Atom a, long value) {
 	XEvent e;
 
 	e.type = ClientMessage;
@@ -144,42 +201,35 @@ 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
  * 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, j, xfd;
-	unsigned int mask;
+main(int argc, char *argv[]) {
+	int r, xfd;
 	fd_set rd;
-	Bool readin = True;
-	Window w;
-	XModifierKeymap *modmap;
-	XSetWindowAttributes wa;
 
 	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
 		fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
@@ -210,86 +260,23 @@ main(int argc, char *argv[])
 	xerrorxlib = XSetErrorHandler(xerror);
 	XSync(dpy, False);
 
-	/* 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);
-
-	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);
-		}
-	}
-	XFree(modmap);
-
-	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[DEFTAG] = True;
-
-	/* 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;
-
-	bx = by = 0;
-	bw = sw;
-	dc.h = bh = dc.font.height + 4;
-	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);
-
-	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
-	dc.gc = XCreateGC(dpy, root, 0, 0);
-
-	strcpy(stext, "dwm-"VERSION);
+	setup();
 	drawstatus();
-
-	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
-
 	scan();
 
 	/* main event loop, also reads status text from stdin */
 	XSync(dpy, False);
 	procevent();
+	readin = True;
 	while(running) {
 		FD_ZERO(&rd);
 		if(readin)
 			FD_SET(STDIN_FILENO, &rd);
 		FD_SET(xfd, &rd);
-		i = select(xfd + 1, &rd, NULL, NULL, NULL);
-		if(i == -1 && errno == EINTR)
+		r = select(xfd + 1, &rd, NULL, NULL, NULL);
+		if((r == -1) && (errno == EINTR))
 			continue;
-		if(i < 0)
-			eprint("select failed\n");
-		else if(i > 0) {
+		if(r > 0) {
 			if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
 				readin = NULL != fgets(stext, sizeof(stext), stdin);
 				if(readin)
@@ -299,6 +286,8 @@ main(int argc, char *argv[])
 				drawstatus();
 			}
 		}
+		else if(r < 0)
+			eprint("select failed\n");
 		procevent();
 	}
 	cleanup();