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annotate wm.c @ 14:5c078b66347b

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added bar event timer
author Anselm R. Garbe <garbeam@wmii.de>
date Tue, 11 Jul 2006 18:15:11 +0200
parents 5cc5e55a132d
children 359b6e563b95
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 XRectangle rect, barrect;
garbeam@5 27 Bool running = True;
garbeam@13 28 Bool sel_screen;
garbeam@3 29
garbeam@7 30 char *bartext, tag[256];
garbeam@13 31 int screen;
garbeam@3 32
garbeam@3 33 Brush brush = {0};
garbeam@10 34 Client *clients = NULL;
garbeam@13 35 Client *stack = NULL;
garbeam@0 36
garbeam@0 37 static Bool other_wm_running;
garbeam@10 38 static char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
garbeam@0 39 static int (*x_error_handler) (Display *, XErrorEvent *);
garbeam@0 40
garbeam@0 41 static void
garbeam@0 42 usage()
garbeam@0 43 {
garbeam@0 44 fputs("usage: gridwm [-v]\n", stderr);
garbeam@0 45 exit(1);
garbeam@0 46 }
garbeam@0 47
garbeam@0 48 static void
garbeam@0 49 scan_wins()
garbeam@0 50 {
garbeam@0 51 unsigned int i, num;
garbeam@0 52 Window *wins;
garbeam@0 53 XWindowAttributes wa;
garbeam@0 54 Window d1, d2;
garbeam@0 55
garbeam@0 56 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 57 for(i = 0; i < num; i++) {
garbeam@0 58 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 59 continue;
garbeam@0 60 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 61 continue;
garbeam@0 62 if(wa.map_state == IsViewable)
garbeam@10 63 manage(wins[i], &wa);
garbeam@0 64 }
garbeam@0 65 }
garbeam@0 66 if(wins)
garbeam@0 67 XFree(wins);
garbeam@0 68 }
garbeam@0 69
garbeam@13 70 static int
garbeam@13 71 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@13 72 {
garbeam@13 73 Atom real;
garbeam@13 74 int format;
garbeam@13 75 unsigned long res, extra;
garbeam@13 76 int status;
garbeam@13 77
garbeam@13 78 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@13 79 &res, &extra, prop);
garbeam@13 80
garbeam@13 81 if(status != Success || *prop == 0) {
garbeam@13 82 return 0;
garbeam@13 83 }
garbeam@13 84 if(res == 0) {
garbeam@13 85 free((void *) *prop);
garbeam@13 86 }
garbeam@13 87 return res;
garbeam@13 88 }
garbeam@13 89
garbeam@13 90 int
garbeam@13 91 win_proto(Window w)
garbeam@13 92 {
garbeam@13 93 Atom *protocols;
garbeam@13 94 long res;
garbeam@13 95 int protos = 0;
garbeam@13 96 int i;
garbeam@13 97
garbeam@13 98 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
garbeam@13 99 ((unsigned char **) &protocols));
garbeam@13 100 if(res <= 0) {
garbeam@13 101 return protos;
garbeam@13 102 }
garbeam@13 103 for(i = 0; i < res; i++) {
garbeam@13 104 if(protocols[i] == wm_atom[WMDelete])
garbeam@13 105 protos |= WM_PROTOCOL_DELWIN;
garbeam@13 106 }
garbeam@13 107 free((char *) protocols);
garbeam@13 108 return protos;
garbeam@13 109 }
garbeam@13 110
garbeam@13 111 void
garbeam@13 112 send_message(Window w, Atom a, long value)
garbeam@13 113 {
garbeam@13 114 XEvent e;
garbeam@13 115
garbeam@13 116 e.type = ClientMessage;
garbeam@13 117 e.xclient.window = w;
garbeam@13 118 e.xclient.message_type = a;
garbeam@13 119 e.xclient.format = 32;
garbeam@13 120 e.xclient.data.l[0] = value;
garbeam@13 121 e.xclient.data.l[1] = CurrentTime;
garbeam@13 122 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@13 123 XFlush(dpy);
garbeam@13 124 }
garbeam@13 125
garbeam@0 126 /*
garbeam@0 127 * There's no way to check accesses to destroyed windows, thus
garbeam@0 128 * those cases are ignored (especially on UnmapNotify's).
garbeam@0 129 * Other types of errors call Xlib's default error handler, which
garbeam@0 130 * calls exit().
garbeam@0 131 */
garbeam@10 132 int
garbeam@0 133 error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 134 {
garbeam@0 135 if(error->error_code == BadWindow
garbeam@0 136 || (error->request_code == X_SetInputFocus
garbeam@0 137 && error->error_code == BadMatch)
garbeam@0 138 || (error->request_code == X_PolyText8
garbeam@0 139 && error->error_code == BadDrawable)
garbeam@0 140 || (error->request_code == X_PolyFillRectangle
garbeam@0 141 && error->error_code == BadDrawable)
garbeam@0 142 || (error->request_code == X_PolySegment
garbeam@0 143 && error->error_code == BadDrawable)
garbeam@0 144 || (error->request_code == X_ConfigureWindow
garbeam@0 145 && error->error_code == BadMatch)
garbeam@0 146 || (error->request_code == X_GrabKey
garbeam@0 147 && error->error_code == BadAccess))
garbeam@0 148 return 0;
garbeam@0 149 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
garbeam@0 150 error->request_code, error->error_code);
garbeam@0 151 return x_error_handler(dpy, error); /* may call exit() */
garbeam@0 152 }
garbeam@0 153
garbeam@0 154 /*
garbeam@0 155 * Startup Error handler to check if another window manager
garbeam@0 156 * is already running.
garbeam@0 157 */
garbeam@0 158 static int
garbeam@0 159 startup_error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 160 {
garbeam@0 161 other_wm_running = True;
garbeam@0 162 return -1;
garbeam@0 163 }
garbeam@0 164
garbeam@0 165 static void
garbeam@0 166 cleanup()
garbeam@0 167 {
garbeam@14 168 while(clients)
garbeam@14 169 unmanage(clients);
garbeam@0 170 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@0 171 }
garbeam@0 172
garbeam@0 173 int
garbeam@0 174 main(int argc, char *argv[])
garbeam@0 175 {
garbeam@0 176 int i;
garbeam@0 177 XSetWindowAttributes wa;
garbeam@0 178 unsigned int mask;
garbeam@0 179 Window w;
garbeam@5 180 XEvent ev;
garbeam@14 181 fd_set fds;
garbeam@14 182 struct timeval t, timeout = {
garbeam@14 183 .tv_usec = 0,
garbeam@14 184 .tv_sec = STATUSDELAY,
garbeam@14 185 };
garbeam@0 186
garbeam@0 187 /* command line args */
garbeam@0 188 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
garbeam@0 189 switch (argv[i][1]) {
garbeam@0 190 case 'v':
garbeam@0 191 fprintf(stdout, "%s", version);
garbeam@0 192 exit(0);
garbeam@0 193 break;
garbeam@0 194 default:
garbeam@0 195 usage();
garbeam@0 196 break;
garbeam@0 197 }
garbeam@0 198 }
garbeam@0 199
garbeam@0 200 dpy = XOpenDisplay(0);
garbeam@0 201 if(!dpy)
garbeam@0 202 error("gridwm: cannot connect X server\n");
garbeam@0 203
garbeam@0 204 screen = DefaultScreen(dpy);
garbeam@0 205 root = RootWindow(dpy, screen);
garbeam@0 206
garbeam@0 207 /* check if another WM is already running */
garbeam@0 208 other_wm_running = False;
garbeam@0 209 XSetErrorHandler(startup_error_handler);
garbeam@0 210 /* this causes an error if some other WM is running */
garbeam@0 211 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@3 212 XFlush(dpy);
garbeam@0 213
garbeam@0 214 if(other_wm_running)
garbeam@0 215 error("gridwm: another window manager is already running\n");
garbeam@0 216
garbeam@0 217 rect.x = rect.y = 0;
garbeam@0 218 rect.width = DisplayWidth(dpy, screen);
garbeam@0 219 rect.height = DisplayHeight(dpy, screen);
garbeam@0 220 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@0 221
garbeam@0 222 XSetErrorHandler(0);
garbeam@0 223 x_error_handler = XSetErrorHandler(error_handler);
garbeam@0 224
garbeam@0 225 /* init atoms */
garbeam@13 226 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@13 227 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@0 228 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@0 229 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@0 230
garbeam@0 231 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
garbeam@0 232 PropModeReplace, (unsigned char *) net_atom, NetLast);
garbeam@0 233
garbeam@0 234
garbeam@0 235 /* init cursors */
garbeam@0 236 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 237 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 238 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 239
garbeam@8 240 update_keys();
garbeam@0 241
garbeam@5 242 brush.drawable = XCreatePixmap(dpy, root, rect.width, rect.height,
garbeam@0 243 DefaultDepth(dpy, screen));
garbeam@5 244 brush.gc = XCreateGC(dpy, root, 0, 0);
garbeam@5 245
garbeam@5 246 /* style */
garbeam@5 247 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
garbeam@5 248 loadfont(dpy, &brush.font, FONT);
garbeam@5 249
garbeam@5 250 wa.override_redirect = 1;
garbeam@5 251 wa.background_pixmap = ParentRelative;
garbeam@5 252 wa.event_mask = ExposureMask;
garbeam@5 253
garbeam@5 254 barrect = rect;
garbeam@5 255 barrect.height = labelheight(&brush.font);
garbeam@5 256 barrect.y = rect.height - barrect.height;
garbeam@5 257 barwin = XCreateWindow(dpy, root, barrect.x, barrect.y,
garbeam@5 258 barrect.width, barrect.height, 0, DefaultDepth(dpy, screen),
garbeam@5 259 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@5 260 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@7 261 bartext = NULL;
garbeam@5 262 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@5 263 XMapRaised(dpy, barwin);
garbeam@5 264 draw_bar();
garbeam@0 265
garbeam@9 266 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
garbeam@9 267 | LeaveWindowMask;
garbeam@0 268 wa.cursor = cursor[CurNormal];
garbeam@0 269 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 270
garbeam@5 271 scan_wins();
garbeam@3 272
garbeam@5 273 while(running) {
garbeam@14 274 if(XPending(dpy) > 0) {
garbeam@14 275 XNextEvent(dpy, &ev);
garbeam@14 276 if(handler[ev.type])
garbeam@14 277 (handler[ev.type]) (&ev); /* call handler */
garbeam@14 278 continue;
garbeam@14 279 }
garbeam@14 280 FD_ZERO(&fds);
garbeam@14 281 FD_SET(ConnectionNumber(dpy), &fds);
garbeam@14 282 t = timeout;
garbeam@14 283 if(select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &t) > 0)
garbeam@14 284 continue;
garbeam@14 285 else if(errno != EINTR)
garbeam@14 286 draw_bar();
garbeam@5 287 }
garbeam@0 288
garbeam@0 289 cleanup();
garbeam@0 290 XCloseDisplay(dpy);
garbeam@0 291
garbeam@0 292 return 0;
garbeam@0 293 }