aewl: 743061dbe7f2 main.c

aewl

view main.c @ 751:743061dbe7f2

made Mod-F4 (shutdown) work on notebook

author	meillo@marmaro.de
date	Sat, 16 Jun 2007 21:44:00 +0200
parents	628c5bac7f3b
children

line source

1 /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>

2 * See LICENSE file for license details.

3 */

5 #include "dwm.h"

6 #include <errno.h>

7 #include <locale.h>

8 #include <stdio.h>

9 #include <stdlib.h>

10 #include <string.h>

11 #include <unistd.h>

12 #include <sys/select.h>

13 #include <X11/cursorfont.h>

14 #include <X11/keysym.h>

15 #include <X11/Xatom.h>

16 #include <X11/Xproto.h>

18 /* extern */

20 char stext[256];

21 int bh, bmw, screen, sx, sy, sw, sh, wax, way, waw, wah;

22 unsigned int master, nmaster, ntags, numlockmask;

23 Atom wmatom[WMLast], netatom[NetLast];

24 Bool running = True;

25 Bool *seltag;

26 Bool selscreen = True;

27 Client *clients = NULL;

28 Client *sel = NULL;

29 Client *stack = NULL;

30 Cursor cursor[CurLast];

31 Display *dpy;

32 DC dc = {0};

33 Window root, barwin;

35 /* static */

37 static int (*xerrorxlib)(Display *, XErrorEvent *);

38 static Bool otherwm, readin;

40 static void

41 cleanup(void) {

42 close(STDIN_FILENO);

43 while(stack) {

44 resize(stack, True);

45 unmanage(stack);

46 }

47 if(dc.font.set)

48 XFreeFontSet(dpy, dc.font.set);

49 else

50 XFreeFont(dpy, dc.font.xfont);

51 XUngrabKey(dpy, AnyKey, AnyModifier, root);

52 XFreePixmap(dpy, dc.drawable);

53 XFreeGC(dpy, dc.gc);

54 XDestroyWindow(dpy, barwin);

55 XFreeCursor(dpy, cursor[CurNormal]);

56 XFreeCursor(dpy, cursor[CurResize]);

57 XFreeCursor(dpy, cursor[CurMove]);

58 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);

59 XSync(dpy, False);

60 free(seltag);

61 }

63 static void

64 scan(void) {

65 unsigned int i, num;

66 Window *wins, d1, d2;

67 XWindowAttributes wa;

69 wins = NULL;

70 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {

71 for(i = 0; i < num; i++) {

72 if(!XGetWindowAttributes(dpy, wins[i], &wa))

73 continue;

74 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))

75 continue;

76 if(wa.map_state == IsViewable)

77 manage(wins[i], &wa);

78 }

79 }

80 if(wins)

81 XFree(wins);

82 }

84 static void

85 setup(void) {

86 int i, j;

87 unsigned int mask;

88 Window w;

89 XModifierKeymap *modmap;

90 XSetWindowAttributes wa;

92 /* init atoms */

93 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);

94 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);

95 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);

96 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);

97 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);

98 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,

99 PropModeReplace, (unsigned char *) netatom, NetLast);

100 /* init cursors */

101 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);

102 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);

103 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);

104 /* init modifier map */

105 numlockmask = 0;

106 modmap = XGetModifierMapping(dpy);

107 for (i = 0; i < 8; i++) {

108 for (j = 0; j < modmap->max_keypermod; j++) {

109 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))

110 numlockmask = (1 << i);

111 }

112 }

113 XFreeModifiermap(modmap);

114 /* select for events */

115 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask

116 | EnterWindowMask | LeaveWindowMask;

117 wa.cursor = cursor[CurNormal];

118 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);

119 grabkeys();

120 initrregs();

121 for(ntags = 0; tags[ntags]; ntags++);

122 seltag = emallocz(sizeof(Bool) * ntags);

123 seltag[0] = True;

124 /* style */

125 dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);

126 dc.norm[ColBG] = getcolor(NORMBGCOLOR);

127 dc.norm[ColFG] = getcolor(NORMFGCOLOR);

128 dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);

129 dc.sel[ColBG] = getcolor(SELBGCOLOR);

130 dc.sel[ColFG] = getcolor(SELFGCOLOR);

131 setfont(FONT);

132 /* geometry */

133 sx = sy = 0;

134 sw = DisplayWidth(dpy, screen);

135 sh = DisplayHeight(dpy, screen);

136 master = MASTER;

137 nmaster = NMASTER;

138 bmw = textw(TILESYMBOL) > textw(FLOATSYMBOL) ? textw(TILESYMBOL) : textw(FLOATSYMBOL);

139 /* bar */

140 dc.h = bh = dc.font.height + 2;

141 wa.override_redirect = 1;

142 wa.background_pixmap = ParentRelative;

143 wa.event_mask = ButtonPressMask | ExposureMask;

144 barwin = XCreateWindow(dpy, root, sx, sy + (TOPBAR ? 0 : sh - bh), sw, bh, 0,

145 DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),

146 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

147 XDefineCursor(dpy, barwin, cursor[CurNormal]);

148 XMapRaised(dpy, barwin);

149 strcpy(stext, "dwm-"VERSION);

150 /* windowarea */

151 wax = sx;

152 way = sy + (TOPBAR ? bh : 0);

153 wah = sh - bh;

154 waw = sw;

155 /* pixmap for everything */

156 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));

157 dc.gc = XCreateGC(dpy, root, 0, 0);

158 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);

159 /* multihead support */

160 selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);

161 }

162

163 /*

164 * Startup Error handler to check if another window manager

165 * is already running.

166 */

167 static int

168 xerrorstart(Display *dsply, XErrorEvent *ee) {

169 otherwm = True;

170 return -1;

171 }

172

173 /* extern */

174

175 void

176 sendevent(Window w, Atom a, long value) {

177 XEvent e;

178

179 e.type = ClientMessage;

180 e.xclient.window = w;

181 e.xclient.message_type = a;

182 e.xclient.format = 32;

183 e.xclient.data.l[0] = value;

184 e.xclient.data.l[1] = CurrentTime;

185 XSendEvent(dpy, w, False, NoEventMask, &e);

186 XSync(dpy, False);

187 }

188

189 void

190 quit(Arg *arg) {

191 readin = running = False;

192 }

193

194 /* There's no way to check accesses to destroyed windows, thus those cases are

195 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs

196 * default error handler, which may call exit.

197 */

198 int

199 xerror(Display *dpy, XErrorEvent *ee) {

200 if(ee->error_code == BadWindow

201 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)

202 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)

203 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)

204 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)

205 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)

206 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)

207 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))

208 return 0;

209 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",

210 ee->request_code, ee->error_code);

211 return xerrorxlib(dpy, ee); /* may call exit */

212 }

213

214 int

215 main(int argc, char *argv[]) {

216 char *p;

217 int r, xfd;

218 fd_set rd;

219

220 if(argc == 2 && !strncmp("-v", argv[1], 3)) {

221 fputs("dwm-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n", stdout);

222 exit(EXIT_SUCCESS);

223 }

224 else if(argc != 1)

225 eprint("usage: dwm [-v]\n");

226 setlocale(LC_CTYPE, "");

227 dpy = XOpenDisplay(0);

228 if(!dpy)

229 eprint("dwm: cannot open display\n");

230 xfd = ConnectionNumber(dpy);

231 screen = DefaultScreen(dpy);

232 root = RootWindow(dpy, screen);

233 otherwm = False;

234 XSetErrorHandler(xerrorstart);

235 /* this causes an error if some other window manager is running */

236 XSelectInput(dpy, root, SubstructureRedirectMask);

237 XSync(dpy, False);

238 if(otherwm)

239 eprint("dwm: another window manager is already running\n");

240

241 XSync(dpy, False);

242 XSetErrorHandler(NULL);

243 xerrorxlib = XSetErrorHandler(xerror);

244 XSync(dpy, False);

245 setup();

246 drawstatus();

247 scan();

248

249 /* main event loop, also reads status text from stdin */

250 XSync(dpy, False);

251 procevent();

252 readin = True;

253 while(running) {

254 FD_ZERO(&rd);

255 if(readin)

256 FD_SET(STDIN_FILENO, &rd);

257 FD_SET(xfd, &rd);

258 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {

259 if(errno == EINTR)

260 continue;

261 eprint("select failed\n");

262 }

263 if(FD_ISSET(STDIN_FILENO, &rd)) {

264 switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {

265 case -1:

266 strncpy(stext, strerror(errno), sizeof stext - 1);

267 stext[sizeof stext - 1] = '\0';

268 readin = False;

269 break;

270 case 0:

271 strncpy(stext, "EOF", 4);

272 readin = False;

273 break;

274 default:

275 for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');

276 for(; p >= stext && *p != '\n'; --p);

277 if(p > stext)

278 strncpy(stext, p + 1, sizeof stext);

279 }

280 drawstatus();

281 }

282 if(FD_ISSET(xfd, &rd))

283 procevent();

284 }

285 cleanup();

286 XCloseDisplay(dpy);

287 return 0;

288 }