about summary refs log tree commit diff stats
path: root/main.c
blob: 5e7b4a63601f78978402ba04aae566eb4e36de23 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
				03-Jun-1994

	I have added DIRECT_WAIS support for VMS to Lynx.  It uses highly
modified freeWAIS modules, collected into HTVMS_WaisUI.c, HTVMS_WaisUI.h,
HTVMS_WaisProt.c, and HTVMS_WaisProt.h, interfaced to HTWAIS.c and HTWSRC.c
of the WWWLib.  The socket reads and writes use the code for VMS in the Lynx
version of the WWWLib, and thus are non-blocking (interruptable via the 'z'
command), and "already" ported to all the VMS TCPIP packages supported by
Lynx.   All messaging associated with WAIS searches and document fetches go to
the Lynx statusline as Progress() or Alarm() reports.

	I also prettied up the HTWAIS.c and HTWSRC.c screen displays for both
VMS and Unix.  I've been trying to build in recursive FORM-based interfaces,
instead of the present iSINDEX-based interfaces, but haven't succeeded ;(.
	
	The DIRECT_WAIS support is automatic for VMS (i.e., is implemented
via the BUILD.COM and LIBMAKE.COM procedures, without need to specify anything
but your TCPIP package, as in the previous, standard VMS builds).  Simply
enter   @BUILD <TCPIP package>   or enter   @BUILD   and then the number of
your TCPIP package in response to the prompt, and you'll have DIRECT_WAIS
support along with every other wonderful thing in Lynx 8-).

				Fote

=========================================================================
 Foteos Macrides           Worcester Foundation for Experimental Biology
 MACRIDES@SCI.WFEB.EDU     222 Maple Avenue, Shrewsbury, MA 01545
=========================================================================
3' href='#n253'>253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304
/*
 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */

#include "dwm.h"
#include <errno.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];
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, readin;

static void
cleanup()
{
	close(STDIN_FILENO);
	while(sel) {
		resize(sel, True, TopLeft);
		unmanage(sel);
	}
	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);
	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
	XSync(dpy, False);
	free(seltag);
}

static void
scan()
{
	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))
				continue;
			if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
				continue;
			if(wa.map_state == IsViewable)
				manage(wins[i], &wa);
		}
	}
	if(wins)
		XFree(wins);
}

static void
setup()
{
	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);
	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[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);
}

/*
 * Startup Error handler to check if another window manager
 * is already running.
 */
static int
xerrorstart(Display *dsply, XErrorEvent *ee)
{
	otherwm = True;
	return -1;
}

/* extern */

int
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++)
		if(protocols[i] == wmatom[WMDelete])
			protos |= PROTODELWIN;
	free(protocols);
	return protos;
}

void
sendevent(Window w, Atom a, long value)
{
	XEvent e;

	e.type = ClientMessage;
	e.xclient.window = w;
	e.xclient.message_type = a;
	e.xclient.format = 32;
	e.xclient.data.l[0] = value;
	e.xclient.data.l[1] = CurrentTime;
	XSendEvent(dpy, w, False, NoEventMask, &e);
	XSync(dpy, False);
}

void
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().
 */
int
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))
		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() */
}

int
main(int argc, char *argv[])
{
	int r, xfd;
	fd_set rd;

	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
		fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
		exit(EXIT_SUCCESS);
	}
	else if(argc != 1)
		eprint("usage: dwm [-v]\n");

	dpy = XOpenDisplay(0);
	if(!dpy)
		eprint("dwm: cannot open display\n");

	xfd = ConnectionNumber(dpy);
	screen = DefaultScreen(dpy);
	root = RootWindow(dpy, screen);

	otherwm = False;
	XSetErrorHandler(xerrorstart);
	/* 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);
	XSync(dpy, False);

	setup();
	drawstatus();
	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);
		r = select(xfd + 1, &rd, NULL, NULL, NULL);
		if((r == -1) && (errno == EINTR))
			continue;
		if(r > 0) {
			if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
				readin = NULL != fgets(stext, sizeof(stext), stdin);
				if(readin)
					stext[strlen(stext) - 1] = 0;
				else 
					strcpy(stext, "broken pipe");
				drawstatus();
			}
		}
		else if(r < 0)
			eprint("select failed\n");
		procevent();
	}
	cleanup();
	XCloseDisplay(dpy);

	return 0;
}