aewl

annotate main.c @ 291:8e6e0aa5e2ae

find changesets by author, revision, files, or words in the commit message
removed NUMLOCKMASK, added dynamically calculated numlockmask instead
author Anselm R.Garbe <arg@10ksloc.org>
date Mon, 14 Aug 2006 19:18:02 +0200
parents 0d0444d32c59
children 4aa632b6ba66
rev   line source
garbeam@0 1 /*
garbeam@0 2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@0 3 * See LICENSE file for license details.
garbeam@0 4 */
garbeam@0 5
garbeam@76 6 #include "dwm.h"
garbeam@59 7 #include <errno.h>
garbeam@0 8 #include <stdio.h>
garbeam@0 9 #include <stdlib.h>
garbeam@57 10 #include <string.h>
garbeam@59 11 #include <unistd.h>
arg@138 12 #include <sys/select.h>
garbeam@0 13 #include <X11/cursorfont.h>
arg@291 14 #include <X11/keysym.h>
garbeam@0 15 #include <X11/Xatom.h>
garbeam@0 16 #include <X11/Xproto.h>
garbeam@0 17
garbeam@84 18 /* static */
garbeam@0 19
arg@123 20 static int (*xerrorxlib)(Display *, XErrorEvent *);
garbeam@75 21 static Bool otherwm;
garbeam@0 22
garbeam@0 23 static void
garbeam@76 24 cleanup()
garbeam@76 25 {
garbeam@76 26 while(sel) {
arg@99 27 resize(sel, True, TopLeft);
garbeam@76 28 unmanage(sel);
garbeam@76 29 }
garbeam@76 30 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@76 31 }
garbeam@0 32
garbeam@0 33 static void
garbeam@75 34 scan()
garbeam@0 35 {
garbeam@0 36 unsigned int i, num;
arg@123 37 Window *wins, d1, d2;
garbeam@0 38 XWindowAttributes wa;
garbeam@0 39
garbeam@0 40 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 41 for(i = 0; i < num; i++) {
garbeam@0 42 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 43 continue;
garbeam@0 44 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 45 continue;
garbeam@0 46 if(wa.map_state == IsViewable)
garbeam@10 47 manage(wins[i], &wa);
garbeam@0 48 }
garbeam@0 49 }
garbeam@0 50 if(wins)
garbeam@0 51 XFree(wins);
garbeam@0 52 }
garbeam@0 53
garbeam@13 54 static int
garbeam@13 55 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@13 56 {
arg@123 57 int status, format;
arg@123 58 unsigned long res, extra;
garbeam@13 59 Atom real;
garbeam@13 60
garbeam@13 61 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@13 62 &res, &extra, prop);
garbeam@13 63
garbeam@13 64 if(status != Success || *prop == 0) {
garbeam@13 65 return 0;
garbeam@13 66 }
garbeam@13 67 if(res == 0) {
garbeam@13 68 free((void *) *prop);
garbeam@13 69 }
garbeam@13 70 return res;
garbeam@13 71 }
garbeam@13 72
garbeam@76 73 /*
garbeam@76 74 * Startup Error handler to check if another window manager
garbeam@76 75 * is already running.
garbeam@76 76 */
garbeam@76 77 static int
garbeam@76 78 xerrorstart(Display *dsply, XErrorEvent *ee)
garbeam@76 79 {
garbeam@76 80 otherwm = True;
garbeam@76 81 return -1;
garbeam@76 82 }
garbeam@76 83
garbeam@84 84 /* extern */
garbeam@84 85
garbeam@84 86 char stext[1024];
arg@262 87 Bool *seltag;
garbeam@84 88 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
arg@291 89 unsigned int ntags, numlockmask;
garbeam@84 90 Atom wmatom[WMLast], netatom[NetLast];
garbeam@84 91 Bool running = True;
garbeam@84 92 Bool issel = True;
garbeam@84 93 Client *clients = NULL;
garbeam@84 94 Client *sel = NULL;
garbeam@84 95 Cursor cursor[CurLast];
garbeam@84 96 Display *dpy;
garbeam@84 97 DC dc = {0};
garbeam@84 98 Window root, barwin;
garbeam@76 99
garbeam@13 100 int
garbeam@75 101 getproto(Window w)
garbeam@13 102 {
garbeam@13 103 int protos = 0;
garbeam@13 104 int i;
arg@123 105 long res;
arg@203 106 Atom *protocols;
garbeam@13 107
arg@203 108 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L,
arg@203 109 ((unsigned char **)&protocols));
garbeam@13 110 if(res <= 0) {
garbeam@13 111 return protos;
garbeam@13 112 }
garbeam@13 113 for(i = 0; i < res; i++) {
garbeam@77 114 if(protocols[i] == wmatom[WMDelete])
arg@157 115 protos |= PROTODELWIN;
garbeam@13 116 }
garbeam@13 117 free((char *) protocols);
garbeam@13 118 return protos;
garbeam@13 119 }
garbeam@13 120
garbeam@13 121 void
garbeam@74 122 sendevent(Window w, Atom a, long value)
garbeam@13 123 {
garbeam@13 124 XEvent e;
garbeam@13 125
garbeam@13 126 e.type = ClientMessage;
garbeam@13 127 e.xclient.window = w;
garbeam@13 128 e.xclient.message_type = a;
garbeam@13 129 e.xclient.format = 32;
garbeam@13 130 e.xclient.data.l[0] = value;
garbeam@13 131 e.xclient.data.l[1] = CurrentTime;
garbeam@13 132 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@79 133 XSync(dpy, False);
garbeam@13 134 }
garbeam@13 135
garbeam@76 136 void
garbeam@76 137 quit(Arg *arg)
garbeam@75 138 {
garbeam@76 139 running = False;
garbeam@75 140 }
garbeam@75 141
garbeam@75 142 /*
garbeam@84 143 * There's no way to check accesses to destroyed windows, thus those cases are
garbeam@84 144 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
garbeam@84 145 * default error handler, which calls exit().
garbeam@0 146 */
garbeam@10 147 int
garbeam@75 148 xerror(Display *dpy, XErrorEvent *ee)
garbeam@0 149 {
garbeam@75 150 if(ee->error_code == BadWindow
arg@123 151 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
arg@123 152 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
arg@123 153 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
arg@123 154 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
arg@123 155 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
arg@123 156 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
garbeam@0 157 return 0;
garbeam@34 158 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
arg@123 159 ee->request_code, ee->error_code);
garbeam@75 160 return xerrorxlib(dpy, ee); /* may call exit() */
garbeam@27 161 }
garbeam@27 162
garbeam@0 163 int
garbeam@0 164 main(int argc, char *argv[])
garbeam@0 165 {
arg@291 166 int i, j, xfd;
arg@123 167 unsigned int mask;
garbeam@59 168 fd_set rd;
arg@164 169 Bool readin = True;
garbeam@0 170 Window w;
garbeam@5 171 XEvent ev;
arg@291 172 XModifierKeymap *modmap;
arg@123 173 XSetWindowAttributes wa;
garbeam@0 174
arg@137 175 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
arg@137 176 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
arg@137 177 exit(EXIT_SUCCESS);
garbeam@0 178 }
arg@137 179 else if(argc != 1)
arg@137 180 eprint("usage: dwm [-v]\n");
garbeam@0 181
garbeam@0 182 dpy = XOpenDisplay(0);
garbeam@0 183 if(!dpy)
arg@197 184 eprint("dwm: cannot open display\n");
garbeam@0 185
arg@265 186 xfd = ConnectionNumber(dpy);
garbeam@0 187 screen = DefaultScreen(dpy);
garbeam@0 188 root = RootWindow(dpy, screen);
garbeam@0 189
garbeam@75 190 otherwm = False;
garbeam@75 191 XSetErrorHandler(xerrorstart);
arg@197 192 /* this causes an error if some other window manager is running */
garbeam@0 193 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@78 194 XSync(dpy, False);
garbeam@0 195
garbeam@75 196 if(otherwm)
garbeam@75 197 eprint("dwm: another window manager is already running\n");
garbeam@0 198
garbeam@78 199 XSetErrorHandler(NULL);
garbeam@75 200 xerrorxlib = XSetErrorHandler(xerror);
arg@275 201 XSync(dpy, False);
garbeam@0 202
garbeam@0 203 /* init atoms */
garbeam@77 204 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@77 205 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@77 206 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@77 207 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@77 208 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
garbeam@77 209 PropModeReplace, (unsigned char *) netatom, NetLast);
garbeam@0 210
garbeam@0 211 /* init cursors */
garbeam@0 212 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 213 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 214 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 215
arg@291 216 modmap = XGetModifierMapping(dpy);
arg@291 217 for (i = 0; i < 8; i++) {
arg@291 218 for (j = 0; j < modmap->max_keypermod; j++) {
arg@291 219 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
arg@291 220 numlockmask = (1 << i);
arg@291 221 }
arg@291 222 }
arg@291 223 XFree(modmap);
arg@291 224
arg@291 225 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask;
arg@281 226 wa.cursor = cursor[CurNormal];
arg@281 227 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
arg@281 228
garbeam@73 229 grabkeys();
arg@191 230 initrregs();
garbeam@0 231
arg@178 232 for(ntags = 0; tags[ntags]; ntags++);
arg@262 233 seltag = emallocz(sizeof(Bool) * ntags);
arg@262 234 seltag[DEFTAG] = True;
arg@178 235
garbeam@5 236 /* style */
garbeam@74 237 dc.bg = getcolor(BGCOLOR);
garbeam@74 238 dc.fg = getcolor(FGCOLOR);
arg@237 239 dc.border = getcolor(BORDERCOLOR);
garbeam@74 240 setfont(FONT);
garbeam@5 241
garbeam@57 242 sx = sy = 0;
garbeam@57 243 sw = DisplayWidth(dpy, screen);
garbeam@57 244 sh = DisplayHeight(dpy, screen);
garbeam@57 245 mw = (sw * MASTERW) / 100;
garbeam@5 246
arg@291 247 bx = by = 0;
arg@291 248 bw = sw;
arg@291 249 dc.h = bh = dc.font.height + 4;
garbeam@57 250 wa.override_redirect = 1;
garbeam@57 251 wa.background_pixmap = ParentRelative;
garbeam@58 252 wa.event_mask = ButtonPressMask | ExposureMask;
garbeam@57 253 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
garbeam@57 254 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@57 255 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@57 256 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@57 257 XMapRaised(dpy, barwin);
garbeam@57 258
garbeam@60 259 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
garbeam@60 260 dc.gc = XCreateGC(dpy, root, 0, 0);
arg@222 261
arg@222 262 strcpy(stext, "dwm-"VERSION);
garbeam@74 263 drawstatus();
garbeam@60 264
garbeam@57 265 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@21 266
garbeam@75 267 scan();
garbeam@3 268
arg@214 269 /* main event loop, also reads status text from stdin */
arg@242 270 XSync(dpy, False);
arg@291 271 goto XLoop;
garbeam@5 272 while(running) {
garbeam@59 273 FD_ZERO(&rd);
arg@164 274 if(readin)
arg@164 275 FD_SET(STDIN_FILENO, &rd);
arg@265 276 FD_SET(xfd, &rd);
arg@266 277 i = select(xfd + 1, &rd, NULL, NULL, NULL);
garbeam@59 278 if(i == -1 && errno == EINTR)
garbeam@59 279 continue;
garbeam@59 280 if(i < 0)
garbeam@75 281 eprint("select failed\n");
garbeam@59 282 else if(i > 0) {
arg@164 283 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
arg@164 284 readin = NULL != fgets(stext, sizeof(stext), stdin);
arg@164 285 if(readin)
arg@164 286 stext[strlen(stext) - 1] = 0;
arg@162 287 else
arg@164 288 strcpy(stext, "broken pipe");
garbeam@74 289 drawstatus();
garbeam@59 290 }
arg@275 291 if(FD_ISSET(xfd, &rd)) {
arg@291 292 XLoop:
arg@275 293 while(XPending(dpy)) {
arg@275 294 XNextEvent(dpy, &ev);
arg@275 295 if(handler[ev.type])
arg@275 296 (handler[ev.type])(&ev); /* call handler */
arg@275 297 }
arg@275 298 }
garbeam@59 299 }
garbeam@5 300 }
garbeam@0 301 cleanup();
garbeam@0 302 XCloseDisplay(dpy);
garbeam@0 303
garbeam@0 304 return 0;
garbeam@0 305 }