dwm-meillo

annotate wm.c @ 31:386649deb651

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before leaning things up
author Anselm R. Garbe <garbeam@wmii.de>
date Thu, 13 Jul 2006 01:04:38 +0200
parents 2e0fb4130bfb
children 082c75b937b5
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@14 6 #include <errno.h>
garbeam@14 7
garbeam@0 8 #include <stdarg.h>
garbeam@0 9 #include <stdio.h>
garbeam@0 10 #include <stdlib.h>
garbeam@0 11
garbeam@14 12 #include <sys/types.h>
garbeam@14 13 #include <sys/time.h>
garbeam@14 14
garbeam@0 15 #include <X11/cursorfont.h>
garbeam@0 16 #include <X11/Xatom.h>
garbeam@0 17 #include <X11/Xproto.h>
garbeam@0 18
garbeam@0 19 #include "wm.h"
garbeam@0 20
garbeam@31 21 /********** CUSTOMIZE **********/
garbeam@31 22
garbeam@31 23 char *tags[TLast] = {
garbeam@31 24 [Tscratch] = "scratch",
garbeam@31 25 [Tdev] = "dev",
garbeam@31 26 [Tirc] = "irc",
garbeam@31 27 [Twww] = "www",
garbeam@31 28 [Twork] = "work",
garbeam@31 29 };
garbeam@31 30
garbeam@31 31 /* commands */
garbeam@31 32 static char *cmdwallpaper[] = {
garbeam@31 33 "feh", "--bg-scale", "/home/garbeam/wallpaper/bg.jpg", NULL
garbeam@31 34 };
garbeam@31 35
garbeam@31 36 static char *cmdstatus[] = {
garbeam@31 37 "sh", "-c", "echo -n `date '+%Y-%m-%d %H:%M'`"
garbeam@31 38 " `uptime | sed 's/.*://; s/,//g'`"
garbeam@31 39 " `acpi | awk '{print $4}' | sed 's/,//'`", NULL
garbeam@31 40 };
garbeam@31 41
garbeam@31 42 /********** CUSTOMIZE **********/
garbeam@31 43
garbeam@3 44 /* X structs */
garbeam@0 45 Display *dpy;
garbeam@5 46 Window root, barwin;
garbeam@13 47 Atom wm_atom[WMLast], net_atom[NetLast];
garbeam@0 48 Cursor cursor[CurLast];
garbeam@5 49 Bool running = True;
garbeam@31 50 Bool issel;
garbeam@3 51
garbeam@31 52 char stext[1024];
garbeam@31 53 int tsel = Tdev; /* default tag */
garbeam@26 54 int screen, sx, sy, sw, sh, bx, by, bw, bh;
garbeam@3 55
garbeam@3 56 Brush brush = {0};
garbeam@10 57 Client *clients = NULL;
garbeam@13 58 Client *stack = NULL;
garbeam@0 59
garbeam@0 60 static Bool other_wm_running;
garbeam@31 61 static const char version[] =
garbeam@31 62 "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
garbeam@0 63 static int (*x_error_handler) (Display *, XErrorEvent *);
garbeam@0 64
garbeam@0 65 static void
garbeam@31 66 usage() { error("usage: gridwm [-v]\n"); }
garbeam@0 67
garbeam@0 68 static void
garbeam@0 69 scan_wins()
garbeam@0 70 {
garbeam@0 71 unsigned int i, num;
garbeam@0 72 Window *wins;
garbeam@0 73 XWindowAttributes wa;
garbeam@0 74 Window d1, d2;
garbeam@0 75
garbeam@0 76 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 77 for(i = 0; i < num; i++) {
garbeam@0 78 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 79 continue;
garbeam@0 80 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 81 continue;
garbeam@0 82 if(wa.map_state == IsViewable)
garbeam@10 83 manage(wins[i], &wa);
garbeam@0 84 }
garbeam@0 85 }
garbeam@0 86 if(wins)
garbeam@0 87 XFree(wins);
garbeam@0 88 }
garbeam@0 89
garbeam@13 90 static int
garbeam@13 91 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@13 92 {
garbeam@13 93 Atom real;
garbeam@13 94 int format;
garbeam@13 95 unsigned long res, extra;
garbeam@13 96 int status;
garbeam@13 97
garbeam@13 98 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@13 99 &res, &extra, prop);
garbeam@13 100
garbeam@13 101 if(status != Success || *prop == 0) {
garbeam@13 102 return 0;
garbeam@13 103 }
garbeam@13 104 if(res == 0) {
garbeam@13 105 free((void *) *prop);
garbeam@13 106 }
garbeam@13 107 return res;
garbeam@13 108 }
garbeam@13 109
garbeam@13 110 int
garbeam@13 111 win_proto(Window w)
garbeam@13 112 {
garbeam@30 113 unsigned char *protocols;
garbeam@13 114 long res;
garbeam@13 115 int protos = 0;
garbeam@13 116 int i;
garbeam@13 117
garbeam@30 118 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
garbeam@13 119 if(res <= 0) {
garbeam@13 120 return protos;
garbeam@13 121 }
garbeam@13 122 for(i = 0; i < res; i++) {
garbeam@13 123 if(protocols[i] == wm_atom[WMDelete])
garbeam@13 124 protos |= WM_PROTOCOL_DELWIN;
garbeam@13 125 }
garbeam@13 126 free((char *) protocols);
garbeam@13 127 return protos;
garbeam@13 128 }
garbeam@13 129
garbeam@13 130 void
garbeam@13 131 send_message(Window w, Atom a, long value)
garbeam@13 132 {
garbeam@13 133 XEvent e;
garbeam@13 134
garbeam@13 135 e.type = ClientMessage;
garbeam@13 136 e.xclient.window = w;
garbeam@13 137 e.xclient.message_type = a;
garbeam@13 138 e.xclient.format = 32;
garbeam@13 139 e.xclient.data.l[0] = value;
garbeam@13 140 e.xclient.data.l[1] = CurrentTime;
garbeam@13 141 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@13 142 XFlush(dpy);
garbeam@13 143 }
garbeam@13 144
garbeam@0 145 /*
garbeam@0 146 * There's no way to check accesses to destroyed windows, thus
garbeam@0 147 * those cases are ignored (especially on UnmapNotify's).
garbeam@0 148 * Other types of errors call Xlib's default error handler, which
garbeam@0 149 * calls exit().
garbeam@0 150 */
garbeam@10 151 int
garbeam@0 152 error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 153 {
garbeam@0 154 if(error->error_code == BadWindow
garbeam@0 155 || (error->request_code == X_SetInputFocus
garbeam@0 156 && error->error_code == BadMatch)
garbeam@0 157 || (error->request_code == X_PolyText8
garbeam@0 158 && error->error_code == BadDrawable)
garbeam@0 159 || (error->request_code == X_PolyFillRectangle
garbeam@0 160 && error->error_code == BadDrawable)
garbeam@0 161 || (error->request_code == X_PolySegment
garbeam@0 162 && error->error_code == BadDrawable)
garbeam@0 163 || (error->request_code == X_ConfigureWindow
garbeam@0 164 && error->error_code == BadMatch)
garbeam@0 165 || (error->request_code == X_GrabKey
garbeam@0 166 && error->error_code == BadAccess))
garbeam@0 167 return 0;
garbeam@0 168 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
garbeam@0 169 error->request_code, error->error_code);
garbeam@0 170 return x_error_handler(dpy, error); /* may call exit() */
garbeam@0 171 }
garbeam@0 172
garbeam@0 173 /*
garbeam@0 174 * Startup Error handler to check if another window manager
garbeam@0 175 * is already running.
garbeam@0 176 */
garbeam@0 177 static int
garbeam@0 178 startup_error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 179 {
garbeam@0 180 other_wm_running = True;
garbeam@0 181 return -1;
garbeam@0 182 }
garbeam@0 183
garbeam@0 184 static void
garbeam@0 185 cleanup()
garbeam@0 186 {
garbeam@14 187 while(clients)
garbeam@14 188 unmanage(clients);
garbeam@0 189 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@0 190 }
garbeam@0 191
garbeam@27 192 void
garbeam@27 193 run(void *aux)
garbeam@27 194 {
garbeam@27 195 spawn(dpy, aux);
garbeam@27 196 }
garbeam@27 197
garbeam@27 198 void
garbeam@27 199 quit(void *aux)
garbeam@27 200 {
garbeam@27 201 running = False;
garbeam@27 202 }
garbeam@27 203
garbeam@0 204 int
garbeam@0 205 main(int argc, char *argv[])
garbeam@0 206 {
garbeam@0 207 int i;
garbeam@0 208 XSetWindowAttributes wa;
garbeam@0 209 unsigned int mask;
garbeam@0 210 Window w;
garbeam@5 211 XEvent ev;
garbeam@14 212 fd_set fds;
garbeam@14 213 struct timeval t, timeout = {
garbeam@14 214 .tv_usec = 0,
garbeam@14 215 .tv_sec = STATUSDELAY,
garbeam@14 216 };
garbeam@0 217
garbeam@0 218 /* command line args */
garbeam@0 219 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
garbeam@0 220 switch (argv[i][1]) {
garbeam@0 221 case 'v':
garbeam@0 222 fprintf(stdout, "%s", version);
garbeam@0 223 exit(0);
garbeam@0 224 break;
garbeam@0 225 default:
garbeam@0 226 usage();
garbeam@0 227 break;
garbeam@0 228 }
garbeam@0 229 }
garbeam@0 230
garbeam@0 231 dpy = XOpenDisplay(0);
garbeam@0 232 if(!dpy)
garbeam@0 233 error("gridwm: cannot connect X server\n");
garbeam@0 234
garbeam@0 235 screen = DefaultScreen(dpy);
garbeam@0 236 root = RootWindow(dpy, screen);
garbeam@0 237
garbeam@0 238 /* check if another WM is already running */
garbeam@0 239 other_wm_running = False;
garbeam@0 240 XSetErrorHandler(startup_error_handler);
garbeam@0 241 /* this causes an error if some other WM is running */
garbeam@0 242 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@3 243 XFlush(dpy);
garbeam@0 244
garbeam@0 245 if(other_wm_running)
garbeam@0 246 error("gridwm: another window manager is already running\n");
garbeam@0 247
garbeam@31 248 spawn(dpy, cmdwallpaper);
garbeam@26 249 sx = sy = 0;
garbeam@26 250 sw = DisplayWidth(dpy, screen);
garbeam@26 251 sh = DisplayHeight(dpy, screen);
garbeam@31 252 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@0 253
garbeam@0 254 XSetErrorHandler(0);
garbeam@0 255 x_error_handler = XSetErrorHandler(error_handler);
garbeam@0 256
garbeam@0 257 /* init atoms */
garbeam@13 258 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@13 259 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@0 260 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@0 261 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@0 262
garbeam@0 263 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
garbeam@0 264 PropModeReplace, (unsigned char *) net_atom, NetLast);
garbeam@0 265
garbeam@0 266
garbeam@0 267 /* init cursors */
garbeam@0 268 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 269 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 270 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 271
garbeam@8 272 update_keys();
garbeam@0 273
garbeam@5 274 /* style */
garbeam@5 275 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
garbeam@5 276 loadfont(dpy, &brush.font, FONT);
garbeam@5 277
garbeam@5 278 wa.override_redirect = 1;
garbeam@5 279 wa.background_pixmap = ParentRelative;
garbeam@5 280 wa.event_mask = ExposureMask;
garbeam@5 281
garbeam@26 282 bx = by = 0;
garbeam@26 283 bw = sw;
garbeam@26 284 bh = texth(&brush.font);
garbeam@26 285 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
garbeam@5 286 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@5 287 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@5 288 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@5 289 XMapRaised(dpy, barwin);
garbeam@21 290
garbeam@26 291 brush.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
garbeam@21 292 brush.gc = XCreateGC(dpy, root, 0, 0);
garbeam@21 293
garbeam@31 294 pipe_spawn(stext, sizeof(stext), dpy, cmdstatus);
garbeam@5 295 draw_bar();
garbeam@0 296
garbeam@9 297 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
garbeam@9 298 | LeaveWindowMask;
garbeam@0 299 wa.cursor = cursor[CurNormal];
garbeam@0 300 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 301
garbeam@31 302 arrange = grid;
garbeam@5 303 scan_wins();
garbeam@3 304
garbeam@5 305 while(running) {
garbeam@14 306 if(XPending(dpy) > 0) {
garbeam@14 307 XNextEvent(dpy, &ev);
garbeam@14 308 if(handler[ev.type])
garbeam@14 309 (handler[ev.type]) (&ev); /* call handler */
garbeam@14 310 continue;
garbeam@14 311 }
garbeam@14 312 FD_ZERO(&fds);
garbeam@14 313 FD_SET(ConnectionNumber(dpy), &fds);
garbeam@14 314 t = timeout;
garbeam@14 315 if(select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &t) > 0)
garbeam@14 316 continue;
garbeam@16 317 else if(errno != EINTR) {
garbeam@31 318 pipe_spawn(stext, sizeof(stext), dpy, cmdstatus);
garbeam@14 319 draw_bar();
garbeam@16 320 }
garbeam@5 321 }
garbeam@0 322
garbeam@0 323 cleanup();
garbeam@0 324 XCloseDisplay(dpy);
garbeam@0 325
garbeam@0 326 return 0;
garbeam@0 327 }