dwm-meillo
view wm.c @ 3:e969f3575b7a
several new changes, made gridmenu working
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Mon, 10 Jul 2006 19:46:24 +0200 |
| parents | a79188fe4a40 |
| children | e5018cae273f |
line source
1 /*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
6 #include <stdarg.h>
7 #include <stdio.h>
8 #include <stdlib.h>
10 #include <X11/cursorfont.h>
11 #include <X11/Xatom.h>
12 #include <X11/Xproto.h>
14 #include "wm.h"
16 /* X structs */
17 Display *dpy;
18 Window root;
19 XRectangle rect;
20 Pixmap pmap;
21 Atom wm_atom[WMLast];
22 Atom net_atom[NetLast];
23 Cursor cursor[CurLast];
25 int screen, sel_screen;
26 unsigned int kmask, numlock_mask;
28 /* draw structs */
29 Brush brush = {0};
31 enum { WM_PROTOCOL_DELWIN = 1 };
33 static Bool other_wm_running;
34 static int (*x_error_handler) (Display *, XErrorEvent *);
35 static char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
37 static void
38 usage()
39 {
40 fputs("usage: gridwm [-v]\n", stderr);
41 exit(1);
42 }
44 static void
45 scan_wins()
46 {
47 unsigned int i, num;
48 Window *wins;
49 XWindowAttributes wa;
50 Window d1, d2;
52 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
53 for(i = 0; i < num; i++) {
54 if(!XGetWindowAttributes(dpy, wins[i], &wa))
55 continue;
56 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
57 continue;
58 if(wa.map_state == IsViewable)
59 /*manage*/;
60 }
61 }
62 if(wins)
63 XFree(wins);
64 }
66 static int
67 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
68 {
69 Atom real;
70 int format;
71 unsigned long res, extra;
72 int status;
74 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
75 &res, &extra, prop);
77 if(status != Success || *prop == 0) {
78 return 0;
79 }
80 if(res == 0) {
81 free((void *) *prop);
82 }
83 return res;
84 }
86 int
87 win_proto(Window w)
88 {
89 Atom *protocols;
90 long res;
91 int protos = 0;
92 int i;
94 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
95 ((unsigned char **) &protocols));
96 if(res <= 0) {
97 return protos;
98 }
99 for(i = 0; i < res; i++) {
100 if(protocols[i] == wm_atom[WMDelete])
101 protos |= WM_PROTOCOL_DELWIN;
102 }
103 free((char *) protocols);
104 return protos;
105 }
107 /*
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
111 * calls exit().
112 */
113 static int
114 error_handler(Display *dpy, XErrorEvent *error)
115 {
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))
129 return 0;
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() */
133 }
135 /*
136 * Startup Error handler to check if another window manager
137 * is already running.
138 */
139 static int
140 startup_error_handler(Display *dpy, XErrorEvent *error)
141 {
142 other_wm_running = True;
143 return -1;
144 }
146 static void
147 init_lock_keys()
148 {
149 XModifierKeymap *modmap;
150 KeyCode numlock;
151 int i;
152 static int masks[] = {
153 ShiftMask, LockMask, ControlMask, Mod1Mask,
154 Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
155 };
157 numlock_mask = 0;
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];
166 }
167 XFreeModifiermap(modmap);
169 kmask = 255 & ~(numlock_mask | LockMask);
170 }
172 static void
173 cleanup()
174 {
175 /*
176 Client *c;
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);
180 */
181 }
183 int
184 main(int argc, char *argv[])
185 {
186 int i;
187 XSetWindowAttributes wa;
188 unsigned int mask;
189 Window w;
191 /* command line args */
192 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
193 switch (argv[i][1]) {
194 case 'v':
195 fprintf(stdout, "%s", version);
196 exit(0);
197 break;
198 default:
199 usage();
200 break;
201 }
202 }
204 dpy = XOpenDisplay(0);
205 if(!dpy)
206 error("gridwm: cannot connect X server\n");
208 screen = DefaultScreen(dpy);
209 root = RootWindow(dpy, screen);
211 /* check if another WM is already running */
212 other_wm_running = False;
213 XSetErrorHandler(startup_error_handler);
214 /* this causes an error if some other WM is running */
215 XSelectInput(dpy, root, SubstructureRedirectMask);
216 XFlush(dpy);
218 if(other_wm_running)
219 error("gridwm: another window manager is already running\n");
221 rect.x = rect.y = 0;
222 rect.width = DisplayWidth(dpy, screen);
223 rect.height = DisplayHeight(dpy, screen);
224 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
226 XSetErrorHandler(0);
227 x_error_handler = XSetErrorHandler(error_handler);
229 /* init atoms */
230 wm_atom[WMState] = XInternAtom(dpy, "WM_STATE", False);
231 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
232 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
233 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
234 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
236 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
237 PropModeReplace, (unsigned char *) net_atom, NetLast);
240 /* init cursors */
241 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
242 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
243 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
245 init_lock_keys();
247 pmap = XCreatePixmap(dpy, root, rect.width, rect.height,
248 DefaultDepth(dpy, screen));
250 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
251 wa.cursor = cursor[CurNormal];
252 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
254 /* style */
255 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
256 loadfont(dpy, &brush.font, FONT);
258 scan_wins();
260 cleanup();
261 XCloseDisplay(dpy);
263 return 0;
264 }