dwm-meillo

annotate wm.c @ 30:2e0fb4130bfb

find changesets by author, revision, files, or words in the commit message
new stuff, fixed several issues
author Anselm R. Garbe <garbeam@wmii.de>
date Wed, 12 Jul 2006 17:50:31 +0200
parents f96fb3fd8203
children 386649deb651
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@3 21 /* X structs */
garbeam@0 22 Display *dpy;
garbeam@5 23 Window root, barwin;
garbeam@13 24 Atom wm_atom[WMLast], net_atom[NetLast];
garbeam@0 25 Cursor cursor[CurLast];
garbeam@5 26 Bool running = True;
garbeam@13 27 Bool sel_screen;
garbeam@3 28
garbeam@16 29 char statustext[1024], tag[256];
garbeam@26 30 int screen, sx, sy, sw, sh, bx, by, bw, bh;
garbeam@3 31
garbeam@3 32 Brush brush = {0};
garbeam@10 33 Client *clients = NULL;
garbeam@13 34 Client *stack = NULL;
garbeam@0 35
garbeam@0 36 static Bool other_wm_running;
garbeam@16 37 static const char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
garbeam@0 38 static int (*x_error_handler) (Display *, XErrorEvent *);
garbeam@0 39
garbeam@16 40 static const char *status[] = {
garbeam@26 41 "sh", "-c", "echo -n `date '+%Y-%m-%d %H:%M'`"
garbeam@16 42 " `uptime | sed 's/.*://; s/,//g'`"
garbeam@16 43 " `acpi | awk '{print $4}' | sed 's/,//'`", 0
garbeam@16 44 };
garbeam@16 45
garbeam@0 46 static void
garbeam@0 47 usage()
garbeam@0 48 {
garbeam@0 49 fputs("usage: gridwm [-v]\n", stderr);
garbeam@0 50 exit(1);
garbeam@0 51 }
garbeam@0 52
garbeam@0 53 static void
garbeam@0 54 scan_wins()
garbeam@0 55 {
garbeam@0 56 unsigned int i, num;
garbeam@0 57 Window *wins;
garbeam@0 58 XWindowAttributes wa;
garbeam@0 59 Window d1, d2;
garbeam@0 60
garbeam@0 61 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 62 for(i = 0; i < num; i++) {
garbeam@0 63 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 64 continue;
garbeam@0 65 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 66 continue;
garbeam@0 67 if(wa.map_state == IsViewable)
garbeam@10 68 manage(wins[i], &wa);
garbeam@0 69 }
garbeam@0 70 }
garbeam@0 71 if(wins)
garbeam@0 72 XFree(wins);
garbeam@0 73 }
garbeam@0 74
garbeam@13 75 static int
garbeam@13 76 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@13 77 {
garbeam@13 78 Atom real;
garbeam@13 79 int format;
garbeam@13 80 unsigned long res, extra;
garbeam@13 81 int status;
garbeam@13 82
garbeam@13 83 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@13 84 &res, &extra, prop);
garbeam@13 85
garbeam@13 86 if(status != Success || *prop == 0) {
garbeam@13 87 return 0;
garbeam@13 88 }
garbeam@13 89 if(res == 0) {
garbeam@13 90 free((void *) *prop);
garbeam@13 91 }
garbeam@13 92 return res;
garbeam@13 93 }
garbeam@13 94
garbeam@13 95 int
garbeam@13 96 win_proto(Window w)
garbeam@13 97 {
garbeam@30 98 unsigned char *protocols;
garbeam@13 99 long res;
garbeam@13 100 int protos = 0;
garbeam@13 101 int i;
garbeam@13 102
garbeam@30 103 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
garbeam@13 104 if(res <= 0) {
garbeam@13 105 return protos;
garbeam@13 106 }
garbeam@13 107 for(i = 0; i < res; i++) {
garbeam@13 108 if(protocols[i] == wm_atom[WMDelete])
garbeam@13 109 protos |= WM_PROTOCOL_DELWIN;
garbeam@13 110 }
garbeam@13 111 free((char *) protocols);
garbeam@13 112 return protos;
garbeam@13 113 }
garbeam@13 114
garbeam@13 115 void
garbeam@13 116 send_message(Window w, Atom a, long value)
garbeam@13 117 {
garbeam@13 118 XEvent e;
garbeam@13 119
garbeam@13 120 e.type = ClientMessage;
garbeam@13 121 e.xclient.window = w;
garbeam@13 122 e.xclient.message_type = a;
garbeam@13 123 e.xclient.format = 32;
garbeam@13 124 e.xclient.data.l[0] = value;
garbeam@13 125 e.xclient.data.l[1] = CurrentTime;
garbeam@13 126 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@13 127 XFlush(dpy);
garbeam@13 128 }
garbeam@13 129
garbeam@0 130 /*
garbeam@0 131 * There's no way to check accesses to destroyed windows, thus
garbeam@0 132 * those cases are ignored (especially on UnmapNotify's).
garbeam@0 133 * Other types of errors call Xlib's default error handler, which
garbeam@0 134 * calls exit().
garbeam@0 135 */
garbeam@10 136 int
garbeam@0 137 error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 138 {
garbeam@0 139 if(error->error_code == BadWindow
garbeam@0 140 || (error->request_code == X_SetInputFocus
garbeam@0 141 && error->error_code == BadMatch)
garbeam@0 142 || (error->request_code == X_PolyText8
garbeam@0 143 && error->error_code == BadDrawable)
garbeam@0 144 || (error->request_code == X_PolyFillRectangle
garbeam@0 145 && error->error_code == BadDrawable)
garbeam@0 146 || (error->request_code == X_PolySegment
garbeam@0 147 && error->error_code == BadDrawable)
garbeam@0 148 || (error->request_code == X_ConfigureWindow
garbeam@0 149 && error->error_code == BadMatch)
garbeam@0 150 || (error->request_code == X_GrabKey
garbeam@0 151 && error->error_code == BadAccess))
garbeam@0 152 return 0;
garbeam@0 153 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
garbeam@0 154 error->request_code, error->error_code);
garbeam@0 155 return x_error_handler(dpy, error); /* may call exit() */
garbeam@0 156 }
garbeam@0 157
garbeam@0 158 /*
garbeam@0 159 * Startup Error handler to check if another window manager
garbeam@0 160 * is already running.
garbeam@0 161 */
garbeam@0 162 static int
garbeam@0 163 startup_error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 164 {
garbeam@0 165 other_wm_running = True;
garbeam@0 166 return -1;
garbeam@0 167 }
garbeam@0 168
garbeam@0 169 static void
garbeam@0 170 cleanup()
garbeam@0 171 {
garbeam@14 172 while(clients)
garbeam@14 173 unmanage(clients);
garbeam@0 174 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@0 175 }
garbeam@0 176
garbeam@27 177 void
garbeam@27 178 run(void *aux)
garbeam@27 179 {
garbeam@27 180 spawn(dpy, aux);
garbeam@27 181 }
garbeam@27 182
garbeam@27 183 void
garbeam@27 184 quit(void *aux)
garbeam@27 185 {
garbeam@27 186 running = False;
garbeam@27 187 }
garbeam@27 188
garbeam@0 189 int
garbeam@0 190 main(int argc, char *argv[])
garbeam@0 191 {
garbeam@0 192 int i;
garbeam@0 193 XSetWindowAttributes wa;
garbeam@0 194 unsigned int mask;
garbeam@0 195 Window w;
garbeam@5 196 XEvent ev;
garbeam@14 197 fd_set fds;
garbeam@14 198 struct timeval t, timeout = {
garbeam@14 199 .tv_usec = 0,
garbeam@14 200 .tv_sec = STATUSDELAY,
garbeam@14 201 };
garbeam@0 202
garbeam@0 203 /* command line args */
garbeam@0 204 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
garbeam@0 205 switch (argv[i][1]) {
garbeam@0 206 case 'v':
garbeam@0 207 fprintf(stdout, "%s", version);
garbeam@0 208 exit(0);
garbeam@0 209 break;
garbeam@0 210 default:
garbeam@0 211 usage();
garbeam@0 212 break;
garbeam@0 213 }
garbeam@0 214 }
garbeam@0 215
garbeam@0 216 dpy = XOpenDisplay(0);
garbeam@0 217 if(!dpy)
garbeam@0 218 error("gridwm: cannot connect X server\n");
garbeam@0 219
garbeam@0 220 screen = DefaultScreen(dpy);
garbeam@0 221 root = RootWindow(dpy, screen);
garbeam@0 222
garbeam@0 223 /* check if another WM is already running */
garbeam@0 224 other_wm_running = False;
garbeam@0 225 XSetErrorHandler(startup_error_handler);
garbeam@0 226 /* this causes an error if some other WM is running */
garbeam@0 227 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@3 228 XFlush(dpy);
garbeam@0 229
garbeam@0 230 if(other_wm_running)
garbeam@0 231 error("gridwm: another window manager is already running\n");
garbeam@0 232
garbeam@26 233 sx = sy = 0;
garbeam@26 234 sw = DisplayWidth(dpy, screen);
garbeam@26 235 sh = DisplayHeight(dpy, screen);
garbeam@0 236 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@0 237
garbeam@0 238 XSetErrorHandler(0);
garbeam@0 239 x_error_handler = XSetErrorHandler(error_handler);
garbeam@0 240
garbeam@0 241 /* init atoms */
garbeam@13 242 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@13 243 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@0 244 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@0 245 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@0 246
garbeam@0 247 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
garbeam@0 248 PropModeReplace, (unsigned char *) net_atom, NetLast);
garbeam@0 249
garbeam@0 250
garbeam@0 251 /* init cursors */
garbeam@0 252 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 253 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 254 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 255
garbeam@8 256 update_keys();
garbeam@0 257
garbeam@5 258 /* style */
garbeam@5 259 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
garbeam@5 260 loadfont(dpy, &brush.font, FONT);
garbeam@5 261
garbeam@5 262 wa.override_redirect = 1;
garbeam@5 263 wa.background_pixmap = ParentRelative;
garbeam@5 264 wa.event_mask = ExposureMask;
garbeam@5 265
garbeam@26 266 bx = by = 0;
garbeam@26 267 bw = sw;
garbeam@26 268 bh = texth(&brush.font);
garbeam@26 269 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
garbeam@5 270 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@5 271 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@5 272 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@5 273 XMapRaised(dpy, barwin);
garbeam@21 274
garbeam@26 275 brush.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
garbeam@21 276 brush.gc = XCreateGC(dpy, root, 0, 0);
garbeam@21 277
garbeam@16 278 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status);
garbeam@5 279 draw_bar();
garbeam@0 280
garbeam@9 281 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
garbeam@9 282 | LeaveWindowMask;
garbeam@0 283 wa.cursor = cursor[CurNormal];
garbeam@0 284 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 285
garbeam@5 286 scan_wins();
garbeam@3 287
garbeam@5 288 while(running) {
garbeam@14 289 if(XPending(dpy) > 0) {
garbeam@14 290 XNextEvent(dpy, &ev);
garbeam@14 291 if(handler[ev.type])
garbeam@14 292 (handler[ev.type]) (&ev); /* call handler */
garbeam@14 293 continue;
garbeam@14 294 }
garbeam@14 295 FD_ZERO(&fds);
garbeam@14 296 FD_SET(ConnectionNumber(dpy), &fds);
garbeam@14 297 t = timeout;
garbeam@14 298 if(select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &t) > 0)
garbeam@14 299 continue;
garbeam@16 300 else if(errno != EINTR) {
garbeam@16 301 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status);
garbeam@14 302 draw_bar();
garbeam@16 303 }
garbeam@5 304 }
garbeam@0 305
garbeam@0 306 cleanup();
garbeam@0 307 XCloseDisplay(dpy);
garbeam@0 308
garbeam@0 309 return 0;
garbeam@0 310 }