Configuration of dwm for Mac Computers
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  1. /*
  2. * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3. * See LICENSE file for license details.
  4. */
  5. #include "dwm.h"
  6. #include <errno.h>
  7. #include <stdio.h>
  8. #include <stdlib.h>
  9. #include <string.h>
  10. #include <unistd.h>
  11. #include <sys/select.h>
  12. #include <X11/cursorfont.h>
  13. #include <X11/Xatom.h>
  14. #include <X11/Xproto.h>
  15. /* static */
  16. static int (*xerrorxlib)(Display *, XErrorEvent *);
  17. static Bool otherwm;
  18. static void
  19. cleanup()
  20. {
  21. while(sel) {
  22. resize(sel, True, TopLeft);
  23. unmanage(sel);
  24. }
  25. XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
  26. }
  27. static void
  28. scan()
  29. {
  30. unsigned int i, num;
  31. Window *wins, d1, d2;
  32. XWindowAttributes wa;
  33. if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
  34. for(i = 0; i < num; i++) {
  35. if(!XGetWindowAttributes(dpy, wins[i], &wa))
  36. continue;
  37. if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
  38. continue;
  39. if(wa.map_state == IsViewable)
  40. manage(wins[i], &wa);
  41. }
  42. }
  43. if(wins)
  44. XFree(wins);
  45. }
  46. static int
  47. win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
  48. {
  49. int status, format;
  50. unsigned long res, extra;
  51. Atom real;
  52. status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
  53. &res, &extra, prop);
  54. if(status != Success || *prop == 0) {
  55. return 0;
  56. }
  57. if(res == 0) {
  58. free((void *) *prop);
  59. }
  60. return res;
  61. }
  62. /*
  63. * Startup Error handler to check if another window manager
  64. * is already running.
  65. */
  66. static int
  67. xerrorstart(Display *dsply, XErrorEvent *ee)
  68. {
  69. otherwm = True;
  70. return -1;
  71. }
  72. /* extern */
  73. char stext[1024];
  74. int tsel = DEFTAG;
  75. int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
  76. unsigned int ntags;
  77. Atom wmatom[WMLast], netatom[NetLast];
  78. Bool running = True;
  79. Bool issel = True;
  80. Client *clients = NULL;
  81. Client *sel = NULL;
  82. Cursor cursor[CurLast];
  83. Display *dpy;
  84. DC dc = {0};
  85. Window root, barwin;
  86. int
  87. getproto(Window w)
  88. {
  89. int protos = 0;
  90. int i;
  91. long res;
  92. unsigned char *protocols;
  93. res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
  94. if(res <= 0) {
  95. return protos;
  96. }
  97. for(i = 0; i < res; i++) {
  98. if(protocols[i] == wmatom[WMDelete])
  99. protos |= PROTODELWIN;
  100. }
  101. free((char *) protocols);
  102. return protos;
  103. }
  104. void
  105. sendevent(Window w, Atom a, long value)
  106. {
  107. XEvent e;
  108. e.type = ClientMessage;
  109. e.xclient.window = w;
  110. e.xclient.message_type = a;
  111. e.xclient.format = 32;
  112. e.xclient.data.l[0] = value;
  113. e.xclient.data.l[1] = CurrentTime;
  114. XSendEvent(dpy, w, False, NoEventMask, &e);
  115. XSync(dpy, False);
  116. }
  117. void
  118. quit(Arg *arg)
  119. {
  120. running = False;
  121. }
  122. /*
  123. * There's no way to check accesses to destroyed windows, thus those cases are
  124. * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
  125. * default error handler, which calls exit().
  126. */
  127. int
  128. xerror(Display *dpy, XErrorEvent *ee)
  129. {
  130. if(ee->error_code == BadWindow
  131. || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
  132. || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
  133. || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
  134. || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
  135. || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
  136. || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
  137. return 0;
  138. fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
  139. ee->request_code, ee->error_code);
  140. return xerrorxlib(dpy, ee); /* may call exit() */
  141. }
  142. int
  143. main(int argc, char *argv[])
  144. {
  145. int i;
  146. unsigned int mask;
  147. fd_set rd;
  148. Bool readin = True;
  149. Window w;
  150. XEvent ev;
  151. XSetWindowAttributes wa;
  152. if(argc == 2 && !strncmp("-v", argv[1], 3)) {
  153. fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
  154. exit(EXIT_SUCCESS);
  155. }
  156. else if(argc != 1)
  157. eprint("usage: dwm [-v]\n");
  158. dpy = XOpenDisplay(0);
  159. if(!dpy)
  160. eprint("dwm: cannot connect X server\n");
  161. screen = DefaultScreen(dpy);
  162. root = RootWindow(dpy, screen);
  163. /* check if another WM is already running */
  164. otherwm = False;
  165. XSetErrorHandler(xerrorstart);
  166. /* this causes an error if some other WM is running */
  167. XSelectInput(dpy, root, SubstructureRedirectMask);
  168. XSync(dpy, False);
  169. if(otherwm)
  170. eprint("dwm: another window manager is already running\n");
  171. XSetErrorHandler(NULL);
  172. xerrorxlib = XSetErrorHandler(xerror);
  173. /* init atoms */
  174. wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
  175. wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
  176. netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
  177. netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
  178. XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
  179. PropModeReplace, (unsigned char *) netatom, NetLast);
  180. /* init cursors */
  181. cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
  182. cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
  183. cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
  184. grabkeys();
  185. for(ntags = 0; tags[ntags]; ntags++);
  186. /* style */
  187. dc.bg = getcolor(BGCOLOR);
  188. dc.fg = getcolor(FGCOLOR);
  189. dc.border = getcolor(BORDERCOLOR);
  190. setfont(FONT);
  191. sx = sy = 0;
  192. sw = DisplayWidth(dpy, screen);
  193. sh = DisplayHeight(dpy, screen);
  194. mw = (sw * MASTERW) / 100;
  195. wa.override_redirect = 1;
  196. wa.background_pixmap = ParentRelative;
  197. wa.event_mask = ButtonPressMask | ExposureMask;
  198. bx = by = 0;
  199. bw = sw;
  200. dc.h = bh = dc.font.height + 4;
  201. barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
  202. CopyFromParent, DefaultVisual(dpy, screen),
  203. CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
  204. XDefineCursor(dpy, barwin, cursor[CurNormal]);
  205. XMapRaised(dpy, barwin);
  206. dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
  207. dc.gc = XCreateGC(dpy, root, 0, 0);
  208. drawstatus();
  209. issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
  210. wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
  211. wa.cursor = cursor[CurNormal];
  212. XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
  213. strcpy(stext, "dwm-"VERSION);
  214. scan();
  215. /* main event loop, reads status text from stdin as well */
  216. while(running) {
  217. FD_ZERO(&rd);
  218. if(readin)
  219. FD_SET(STDIN_FILENO, &rd);
  220. FD_SET(ConnectionNumber(dpy), &rd);
  221. i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
  222. if(i == -1 && errno == EINTR)
  223. continue;
  224. if(i < 0)
  225. eprint("select failed\n");
  226. else if(i > 0) {
  227. if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
  228. while(XPending(dpy)) {
  229. XNextEvent(dpy, &ev);
  230. if(handler[ev.type])
  231. (handler[ev.type])(&ev); /* call handler */
  232. }
  233. }
  234. if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
  235. readin = NULL != fgets(stext, sizeof(stext), stdin);
  236. if(readin)
  237. stext[strlen(stext) - 1] = 0;
  238. else
  239. strcpy(stext, "broken pipe");
  240. drawstatus();
  241. }
  242. }
  243. }
  244. cleanup();
  245. XCloseDisplay(dpy);
  246. return 0;
  247. }