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annotate main.c @ 58:1269bd127551

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author Anselm R. Garbe <garbeam@wmii.de>
date Fri, 14 Jul 2006 10:34:07 +0200
parents f005d46462e8
children 5d4653de9a1c
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@0 6 #include <stdarg.h>
garbeam@0 7 #include <stdio.h>
garbeam@0 8 #include <stdlib.h>
garbeam@57 9 #include <string.h>
garbeam@0 10
garbeam@0 11 #include <X11/cursorfont.h>
garbeam@0 12 #include <X11/Xatom.h>
garbeam@0 13 #include <X11/Xproto.h>
garbeam@0 14
garbeam@43 15 #include "dwm.h"
garbeam@0 16
garbeam@31 17 /********** CUSTOMIZE **********/
garbeam@31 18
garbeam@31 19 char *tags[TLast] = {
garbeam@31 20 [Tscratch] = "scratch",
garbeam@31 21 [Tdev] = "dev",
garbeam@31 22 [Tirc] = "irc",
garbeam@31 23 [Twww] = "www",
garbeam@31 24 [Twork] = "work",
garbeam@31 25 };
garbeam@31 26
garbeam@31 27 /********** CUSTOMIZE **********/
garbeam@31 28
garbeam@3 29 /* X structs */
garbeam@0 30 Display *dpy;
garbeam@5 31 Window root, barwin;
garbeam@13 32 Atom wm_atom[WMLast], net_atom[NetLast];
garbeam@0 33 Cursor cursor[CurLast];
garbeam@5 34 Bool running = True;
garbeam@31 35 Bool issel;
garbeam@3 36
garbeam@31 37 int tsel = Tdev; /* default tag */
garbeam@57 38 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
garbeam@57 39 char stext[1024];
garbeam@3 40
garbeam@34 41 DC dc = {0};
garbeam@50 42 Client *clients = NULL;
garbeam@50 43 Client *sel = NULL;
garbeam@0 44
garbeam@0 45 static Bool other_wm_running;
garbeam@31 46 static const char version[] =
garbeam@57 47 "dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
garbeam@0 48 static int (*x_error_handler) (Display *, XErrorEvent *);
garbeam@0 49
garbeam@0 50 static void
garbeam@34 51 usage() { error("usage: dwm [-v]\n"); }
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@34 153 fprintf(stderr, "dwm: 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@50 172 while(sel) {
garbeam@52 173 resize(sel, True);
garbeam@50 174 unmanage(sel);
garbeam@50 175 }
garbeam@0 176 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@0 177 }
garbeam@0 178
garbeam@27 179 void
garbeam@49 180 quit(Arg *arg)
garbeam@27 181 {
garbeam@27 182 running = False;
garbeam@27 183 }
garbeam@27 184
garbeam@0 185 int
garbeam@0 186 main(int argc, char *argv[])
garbeam@0 187 {
garbeam@0 188 int i;
garbeam@0 189 XSetWindowAttributes wa;
garbeam@0 190 unsigned int mask;
garbeam@0 191 Window w;
garbeam@5 192 XEvent ev;
garbeam@0 193
garbeam@0 194 /* command line args */
garbeam@0 195 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
garbeam@0 196 switch (argv[i][1]) {
garbeam@0 197 case 'v':
garbeam@0 198 fprintf(stdout, "%s", version);
garbeam@0 199 exit(0);
garbeam@0 200 break;
garbeam@0 201 default:
garbeam@0 202 usage();
garbeam@0 203 break;
garbeam@0 204 }
garbeam@0 205 }
garbeam@0 206
garbeam@0 207 dpy = XOpenDisplay(0);
garbeam@0 208 if(!dpy)
garbeam@34 209 error("dwm: cannot connect X server\n");
garbeam@0 210
garbeam@0 211 screen = DefaultScreen(dpy);
garbeam@0 212 root = RootWindow(dpy, screen);
garbeam@0 213
garbeam@0 214 /* check if another WM is already running */
garbeam@0 215 other_wm_running = False;
garbeam@0 216 XSetErrorHandler(startup_error_handler);
garbeam@0 217 /* this causes an error if some other WM is running */
garbeam@0 218 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@3 219 XFlush(dpy);
garbeam@0 220
garbeam@0 221 if(other_wm_running)
garbeam@34 222 error("dwm: another window manager is already running\n");
garbeam@0 223
garbeam@0 224 XSetErrorHandler(0);
garbeam@0 225 x_error_handler = XSetErrorHandler(error_handler);
garbeam@0 226
garbeam@0 227 /* init atoms */
garbeam@13 228 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@13 229 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@0 230 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@0 231 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@0 232 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
garbeam@0 233 PropModeReplace, (unsigned char *) net_atom, NetLast);
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 /* style */
garbeam@43 243 dc.bg = initcolor(BGCOLOR);
garbeam@43 244 dc.fg = initcolor(FGCOLOR);
garbeam@43 245 dc.border = initcolor(BORDERCOLOR);
garbeam@43 246 initfont(FONT);
garbeam@5 247
garbeam@57 248 sx = sy = 0;
garbeam@57 249 sw = DisplayWidth(dpy, screen);
garbeam@57 250 sh = DisplayHeight(dpy, screen);
garbeam@57 251 mw = (sw * MASTERW) / 100;
garbeam@5 252
garbeam@57 253 wa.override_redirect = 1;
garbeam@57 254 wa.background_pixmap = ParentRelative;
garbeam@58 255 wa.event_mask = ButtonPressMask | ExposureMask;
garbeam@57 256
garbeam@57 257 bx = by = 0;
garbeam@57 258 bw = sw;
garbeam@57 259 dc.h = bh = dc.font.height + 4;
garbeam@57 260 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
garbeam@57 261 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@57 262 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@57 263 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@57 264 XMapRaised(dpy, barwin);
garbeam@57 265
garbeam@57 266 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@21 267
garbeam@9 268 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
garbeam@9 269 | LeaveWindowMask;
garbeam@0 270 wa.cursor = cursor[CurNormal];
garbeam@57 271
garbeam@0 272 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 273
garbeam@57 274 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
garbeam@57 275 dc.gc = XCreateGC(dpy, root, 0, 0);
garbeam@57 276
garbeam@57 277 strcpy(stext, "dwm-"VERSION);
garbeam@5 278 scan_wins();
garbeam@57 279 draw_bar();
garbeam@3 280
garbeam@5 281 while(running) {
garbeam@32 282 XNextEvent(dpy, &ev);
garbeam@32 283 if(handler[ev.type])
garbeam@32 284 (handler[ev.type])(&ev); /* call handler */
garbeam@5 285 }
garbeam@0 286
garbeam@0 287 cleanup();
garbeam@0 288 XCloseDisplay(dpy);
garbeam@0 289
garbeam@0 290 return 0;
garbeam@0 291 }