2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
10 #include <X11/cursorfont.h>
11 #include <X11/Xatom.h>
12 #include <X11/Xproto.h>
19 Atom wm_atom[WMLast], net_atom[NetLast];
20 Cursor cursor[CurLast];
21 XRectangle rect, barrect;
23 Client *client = NULL;
25 char *bartext, tag[256];
26 int screen, sel_screen;
27 unsigned int lock_mask, numlock_mask;
32 enum { WM_PROTOCOL_DELWIN = 1 };
34 static Bool other_wm_running;
35 static int (*x_error_handler) (Display *, XErrorEvent *);
36 static char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
41 fputs("usage: gridwm [-v]\n", stderr);
53 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
54 for(i = 0; i < num; i++) {
55 if(!XGetWindowAttributes(dpy, wins[i], &wa))
57 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
59 if(wa.map_state == IsViewable)
60 manage(create_client(wins[i], &wa));
68 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
72 unsigned long res, extra;
75 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
78 if(status != Success || *prop == NULL) {
94 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
95 ((unsigned char **) &protocols));
99 for(i = 0; i < res; i++) {
100 if(protocols[i] == wm_atom[WMDelete])
101 protos |= WM_PROTOCOL_DELWIN;
103 free((char *) protocols);
108 * There's no way to check accesses to destroyed windows, thus
109 * those cases are ignored (especially on UnmapNotify's).
110 * Other types of errors call Xlib's default error handler, which
114 error_handler(Display *dpy, XErrorEvent *error)
116 if(error->error_code == BadWindow
117 || (error->request_code == X_SetInputFocus
118 && error->error_code == BadMatch)
119 || (error->request_code == X_PolyText8
120 && error->error_code == BadDrawable)
121 || (error->request_code == X_PolyFillRectangle
122 && error->error_code == BadDrawable)
123 || (error->request_code == X_PolySegment
124 && error->error_code == BadDrawable)
125 || (error->request_code == X_ConfigureWindow
126 && error->error_code == BadMatch)
127 || (error->request_code == X_GrabKey
128 && error->error_code == BadAccess))
130 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
131 error->request_code, error->error_code);
132 return x_error_handler(dpy, error); /* may call exit() */
136 * Startup Error handler to check if another window manager
137 * is already running.
140 startup_error_handler(Display *dpy, XErrorEvent *error)
142 other_wm_running = True;
149 XModifierKeymap *modmap;
152 static int masks[] = {
153 ShiftMask, LockMask, ControlMask, Mod1Mask,
154 Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
158 modmap = XGetModifierMapping(dpy);
159 numlock = XKeysymToKeycode(dpy, XStringToKeysym("Num_Lock"));
161 if(modmap && modmap->max_keypermod > 0) {
162 int max = (sizeof(masks) / sizeof(int)) * modmap->max_keypermod;
163 for(i = 0; i < max; i++)
164 if(numlock && (modmap->modifiermap[i] == numlock))
165 numlock_mask = masks[i / modmap->max_keypermod];
167 XFreeModifiermap(modmap);
169 lock_mask = 255 & ~(numlock_mask | LockMask);
177 for(c=client; c; c=c->next)
178 reparent_client(c, root, c->sel->rect.x, c->sel->rect.y);
179 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
184 main(int argc, char *argv[])
187 XSetWindowAttributes wa;
192 /* command line args */
193 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
194 switch (argv[i][1]) {
196 fprintf(stdout, "%s", version);
205 dpy = XOpenDisplay(0);
207 error("gridwm: cannot connect X server\n");
209 screen = DefaultScreen(dpy);
210 root = RootWindow(dpy, screen);
212 /* check if another WM is already running */
213 other_wm_running = False;
214 XSetErrorHandler(startup_error_handler);
215 /* this causes an error if some other WM is running */
216 XSelectInput(dpy, root, SubstructureRedirectMask);
220 error("gridwm: another window manager is already running\n");
223 rect.width = DisplayWidth(dpy, screen);
224 rect.height = DisplayHeight(dpy, screen);
225 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
228 x_error_handler = XSetErrorHandler(error_handler);
231 wm_atom[WMState] = XInternAtom(dpy, "WM_STATE", False);
232 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
233 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
234 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
235 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
237 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
238 PropModeReplace, (unsigned char *) net_atom, NetLast);
242 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
243 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
244 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
248 brush.drawable = XCreatePixmap(dpy, root, rect.width, rect.height,
249 DefaultDepth(dpy, screen));
250 brush.gc = XCreateGC(dpy, root, 0, 0);
253 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
254 loadfont(dpy, &brush.font, FONT);
256 wa.override_redirect = 1;
257 wa.background_pixmap = ParentRelative;
258 wa.event_mask = ExposureMask;
261 barrect.height = labelheight(&brush.font);
262 barrect.y = rect.height - barrect.height;
263 barwin = XCreateWindow(dpy, root, barrect.x, barrect.y,
264 barrect.width, barrect.height, 0, DefaultDepth(dpy, screen),
265 CopyFromParent, DefaultVisual(dpy, screen),
266 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
268 XDefineCursor(dpy, barwin, cursor[CurNormal]);
269 XMapRaised(dpy, barwin);
272 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
273 wa.cursor = cursor[CurNormal];
274 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
279 XNextEvent(dpy, &ev);
281 (handler[ev.type]) (&ev); /* call handler */