dwm-meillo
view main.c @ 49:466591c2f967
implemented tagging a client
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Thu, 13 Jul 2006 17:09:35 +0200 |
| parents | 989178822938 |
| children | 148f25ed0ad7 |
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 "dwm.h"
16 /********** CUSTOMIZE **********/
18 char *tags[TLast] = {
19 [Tscratch] = "scratch",
20 [Tdev] = "dev",
21 [Tirc] = "irc",
22 [Twww] = "www",
23 [Twork] = "work",
24 };
26 /********** CUSTOMIZE **********/
28 /* X structs */
29 Display *dpy;
30 Window root, barwin;
31 Atom wm_atom[WMLast], net_atom[NetLast];
32 Cursor cursor[CurLast];
33 Bool running = True;
34 Bool issel;
36 char stext[1024];
37 int tsel = Tdev; /* default tag */
38 int screen, sx, sy, sw, sh, th;
40 DC dc = {0};
41 Client *cstart = NULL;
42 Client *cend = NULL;
43 Client *csel = NULL;
45 static Bool other_wm_running;
46 static const char version[] =
47 "dwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
48 static int (*x_error_handler) (Display *, XErrorEvent *);
50 static void
51 usage() { error("usage: dwm [-v]\n"); }
53 static void
54 scan_wins()
55 {
56 unsigned int i, num;
57 Window *wins;
58 XWindowAttributes wa;
59 Window d1, d2;
61 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
62 for(i = 0; i < num; i++) {
63 if(!XGetWindowAttributes(dpy, wins[i], &wa))
64 continue;
65 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
66 continue;
67 if(wa.map_state == IsViewable)
68 manage(wins[i], &wa);
69 }
70 }
71 if(wins)
72 XFree(wins);
73 }
75 static int
76 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
77 {
78 Atom real;
79 int format;
80 unsigned long res, extra;
81 int status;
83 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
84 &res, &extra, prop);
86 if(status != Success || *prop == 0) {
87 return 0;
88 }
89 if(res == 0) {
90 free((void *) *prop);
91 }
92 return res;
93 }
95 int
96 win_proto(Window w)
97 {
98 unsigned char *protocols;
99 long res;
100 int protos = 0;
101 int i;
103 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
104 if(res <= 0) {
105 return protos;
106 }
107 for(i = 0; i < res; i++) {
108 if(protocols[i] == wm_atom[WMDelete])
109 protos |= WM_PROTOCOL_DELWIN;
110 }
111 free((char *) protocols);
112 return protos;
113 }
115 void
116 send_message(Window w, Atom a, long value)
117 {
118 XEvent e;
120 e.type = ClientMessage;
121 e.xclient.window = w;
122 e.xclient.message_type = a;
123 e.xclient.format = 32;
124 e.xclient.data.l[0] = value;
125 e.xclient.data.l[1] = CurrentTime;
126 XSendEvent(dpy, w, False, NoEventMask, &e);
127 XFlush(dpy);
128 }
130 /*
131 * There's no way to check accesses to destroyed windows, thus
132 * those cases are ignored (especially on UnmapNotify's).
133 * Other types of errors call Xlib's default error handler, which
134 * calls exit().
135 */
136 int
137 error_handler(Display *dpy, XErrorEvent *error)
138 {
139 if(error->error_code == BadWindow
140 || (error->request_code == X_SetInputFocus
141 && error->error_code == BadMatch)
142 || (error->request_code == X_PolyText8
143 && error->error_code == BadDrawable)
144 || (error->request_code == X_PolyFillRectangle
145 && error->error_code == BadDrawable)
146 || (error->request_code == X_PolySegment
147 && error->error_code == BadDrawable)
148 || (error->request_code == X_ConfigureWindow
149 && error->error_code == BadMatch)
150 || (error->request_code == X_GrabKey
151 && error->error_code == BadAccess))
152 return 0;
153 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
154 error->request_code, error->error_code);
155 return x_error_handler(dpy, error); /* may call exit() */
156 }
158 /*
159 * Startup Error handler to check if another window manager
160 * is already running.
161 */
162 static int
163 startup_error_handler(Display *dpy, XErrorEvent *error)
164 {
165 other_wm_running = True;
166 return -1;
167 }
169 static void
170 cleanup()
171 {
172 while(csel)
173 unmanage(csel);
174 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
175 }
177 void
178 quit(Arg *arg)
179 {
180 running = False;
181 }
183 int
184 main(int argc, char *argv[])
185 {
186 int i;
187 XSetWindowAttributes wa;
188 unsigned int mask;
189 Window w;
190 XEvent ev;
192 /* command line args */
193 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
194 switch (argv[i][1]) {
195 case 'v':
196 fprintf(stdout, "%s", version);
197 exit(0);
198 break;
199 default:
200 usage();
201 break;
202 }
203 }
205 dpy = XOpenDisplay(0);
206 if(!dpy)
207 error("dwm: 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);
217 XFlush(dpy);
219 if(other_wm_running)
220 error("dwm: another window manager is already running\n");
222 sx = sy = 0;
223 sw = DisplayWidth(dpy, screen);
224 sh = DisplayHeight(dpy, screen);
225 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
227 XSetErrorHandler(0);
228 x_error_handler = XSetErrorHandler(error_handler);
230 /* init atoms */
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 update_keys();
247 /* style */
248 dc.bg = initcolor(BGCOLOR);
249 dc.fg = initcolor(FGCOLOR);
250 dc.border = initcolor(BORDERCOLOR);
251 initfont(FONT);
253 th = dc.font.height + 4;
255 dc.drawable = XCreatePixmap(dpy, root, sw, th, DefaultDepth(dpy, screen));
256 dc.gc = XCreateGC(dpy, root, 0, 0);
258 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
259 | LeaveWindowMask;
260 wa.cursor = cursor[CurNormal];
261 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
263 scan_wins();
265 while(running) {
266 XNextEvent(dpy, &ev);
267 if(handler[ev.type])
268 (handler[ev.type])(&ev); /* call handler */
269 }
271 cleanup();
272 XCloseDisplay(dpy);
274 return 0;
275 }