X-Git-Url: https://git.xinqibao.xyz/dwm.git/blobdiff_plain/5b44976a2d8bdd1397727663ce019374d6b2730a..f60c597d653bd7eab6c620fc53d732ca75f6a880:/main.c?ds=inline

diff --git a/main.c b/main.c
index b59ff96..5cf2738 100644
--- a/main.c
+++ b/main.c
@@ -3,37 +3,23 @@
  * See LICENSE file for license details.
  */
 
+#include "dwm.h"
+
 #include <errno.h>
-#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-
 #include <X11/cursorfont.h>
 #include <X11/Xatom.h>
 #include <X11/Xproto.h>
 
-#include "dwm.h"
-
-/********** CUSTOMIZE **********/
-
-char *tags[TLast] = {
-	[Tscratch] = "scratch",
-	[Tdev] = "dev",
-	[Twww] = "www",
-	[Twork] = "work",
-};
-
-/********** CUSTOMIZE **********/
-
-/* X structs */
 Display *dpy;
 Window root, barwin;
-Atom wm_atom[WMLast], net_atom[NetLast];
+Atom wmatom[WMLast], netatom[NetLast];
 Cursor cursor[CurLast];
 Bool running = True;
-Bool issel;
+Bool issel = True;
 
 int tsel = Tdev; /* default tag */
 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
@@ -43,16 +29,23 @@ DC dc = {0};
 Client *clients = NULL;
 Client *sel = NULL;
 
-static Bool other_wm_running;
-static const char version[] =
-	"dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
-static int (*x_error_handler) (Display *, XErrorEvent *);
+static Bool otherwm;
+static int (*xerrorxlib)(Display *, XErrorEvent *);
+
+/* static functions */
 
 static void
-usage() {	error("usage: dwm [-v]\n"); }
+cleanup()
+{
+	while(sel) {
+		resize(sel, True);
+		unmanage(sel);
+	}
+	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+}
 
 static void
-scan_wins()
+scan()
 {
 	unsigned int i, num;
 	Window *wins;
@@ -93,20 +86,33 @@ win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
 	return res;
 }
 
+/*
+ * Startup Error handler to check if another window manager
+ * is already running.
+ */
+static int
+xerrorstart(Display *dsply, XErrorEvent *ee)
+{
+	otherwm = True;
+	return -1;
+}
+
+/* extern functions */
+
 int
-win_proto(Window w)
+getproto(Window w)
 {
 	unsigned char *protocols;
 	long res;
 	int protos = 0;
 	int i;
 
-	res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
+	res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
 	if(res <= 0) {
 		return protos;
 	}
 	for(i = 0; i < res; i++) {
-		if(protocols[i] == wm_atom[WMDelete])
+		if(protocols[i] == wmatom[WMDelete])
 			protos |= WM_PROTOCOL_DELWIN;
 	}
 	free((char *) protocols);
@@ -114,7 +120,7 @@ win_proto(Window w)
 }
 
 void
-send_message(Window w, Atom a, long value)
+sendevent(Window w, Atom a, long value)
 {
 	XEvent e;
 
@@ -128,6 +134,12 @@ send_message(Window w, Atom a, long value)
 	XFlush(dpy);
 }
 
+void
+quit(Arg *arg)
+{
+	running = False;
+}
+
 /*
  * There's no way to check accesses to destroyed windows, thus
  * those cases are ignored (especially on UnmapNotify's).
@@ -135,52 +147,25 @@ send_message(Window w, Atom a, long value)
  * calls exit().
  */
 int
-error_handler(Display *dpy, XErrorEvent *error)
+xerror(Display *dpy, XErrorEvent *ee)
 {
-	if(error->error_code == BadWindow
-			|| (error->request_code == X_SetInputFocus
-				&& error->error_code == BadMatch)
-			|| (error->request_code == X_PolyText8
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_PolyFillRectangle
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_PolySegment
-				&& error->error_code == BadDrawable)
-			|| (error->request_code == X_ConfigureWindow
-				&& error->error_code == BadMatch)
-			|| (error->request_code == X_GrabKey
-				&& error->error_code == BadAccess))
+	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))
 		return 0;
 	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
-			error->request_code, error->error_code);
-	return x_error_handler(dpy, error); /* may call exit() */
-}
-
-/*
- * Startup Error handler to check if another window manager
- * is already running.
- */
-static int
-startup_error_handler(Display *dpy, XErrorEvent *error)
-{
-	other_wm_running = True;
-	return -1;
-}
-
-static void
-cleanup()
-{
-	while(sel) {
-		resize(sel, True);
-		unmanage(sel);
-	}
-	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
-}
-
-void
-quit(Arg *arg)
-{
-	running = False;
+			ee->request_code, ee->error_code);
+	return xerrorxlib(dpy, ee); /* may call exit() */
 }
 
 int
@@ -197,55 +182,56 @@ main(int argc, char *argv[])
 	for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
 		switch (argv[i][1]) {
 		case 'v':
-			fprintf(stdout, "%s", version);
+			fprintf(stdout, "%s",
+					"dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n");
 			exit(0);
 			break;
 		default:
-			usage();
+			eprint("usage: dwm [-v]\n");
 			break;
 		}
 	}
 
 	dpy = XOpenDisplay(0);
 	if(!dpy)
-		error("dwm: cannot connect X server\n");
+		eprint("dwm: cannot connect X server\n");
 
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
 
 	/* check if another WM is already running */
-	other_wm_running = False;
-	XSetErrorHandler(startup_error_handler);
+	otherwm = False;
+	XSetErrorHandler(xerrorstart);
 	/* this causes an error if some other WM is running */
 	XSelectInput(dpy, root, SubstructureRedirectMask);
-	XFlush(dpy);
+	XSync(dpy, False);
 
-	if(other_wm_running)
-		error("dwm: another window manager is already running\n");
+	if(otherwm)
+		eprint("dwm: another window manager is already running\n");
 
-	XSetErrorHandler(0);
-	x_error_handler = XSetErrorHandler(error_handler);
+	XSetErrorHandler(NULL);
+	xerrorxlib = XSetErrorHandler(xerror);
 
 	/* init atoms */
-	wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
-	wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
-	net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
-	net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
-	XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
-			PropModeReplace, (unsigned char *) net_atom, NetLast);
+	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);
 
-	update_keys();
+	grabkeys();
 
 	/* style */
-	dc.bg = initcolor(BGCOLOR);
-	dc.fg = initcolor(FGCOLOR);
-	dc.border = initcolor(BORDERCOLOR);
-	initfont(FONT);
+	dc.bg = getcolor(BGCOLOR);
+	dc.fg = getcolor(FGCOLOR);
+	dc.border = getcolor(BORDERCOLOR);
+	setfont(FONT);
 
 	sx = sy = 0;
 	sw = DisplayWidth(dpy, screen);
@@ -267,7 +253,7 @@ main(int argc, char *argv[])
 
 	dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
 	dc.gc = XCreateGC(dpy, root, 0, 0);
-	draw_bar();
+	drawstatus();
 
 	issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
 
@@ -278,7 +264,7 @@ main(int argc, char *argv[])
 	XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
 
 	strcpy(stext, "dwm-"VERSION);
-	scan_wins();
+	scan();
 
 	/* main event loop, reads status text from stdin as well */
 Mainloop:
@@ -292,7 +278,7 @@ Mainloop:
 		if(i == -1 && errno == EINTR)
 			continue;
 		if(i < 0)
-			error("select failed\n");
+			eprint("select failed\n");
 		else if(i > 0) {
 			if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
 				while(XPending(dpy)) {
@@ -315,7 +301,7 @@ Mainloop:
 					stext[n++] = i;
 				}
 				stext[n] = 0;
-				draw_bar();
+				drawstatus();
 			}
 		}
 	}