dwm-meillo

annotate main.c @ 567:7e92f58754ae

find changesets by author, revision, files, or words in the commit message
nah reverting to my prev style, that's really the best
author arg@mig29
date Sat, 18 Nov 2006 21:33:33 +0100
parents 651f2c868b31
children f05cfa7d5128
rev   line source
arg@532 1 /* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@0 2 * See LICENSE file for license details.
garbeam@0 3 */
garbeam@0 4
garbeam@76 5 #include "dwm.h"
garbeam@59 6 #include <errno.h>
garbeam@0 7 #include <stdio.h>
garbeam@0 8 #include <stdlib.h>
garbeam@57 9 #include <string.h>
garbeam@59 10 #include <unistd.h>
arg@138 11 #include <sys/select.h>
garbeam@0 12 #include <X11/cursorfont.h>
arg@291 13 #include <X11/keysym.h>
garbeam@0 14 #include <X11/Xatom.h>
garbeam@0 15 #include <X11/Xproto.h>
garbeam@0 16
arg@333 17 /* extern */
arg@333 18
arg@333 19 char stext[1024];
arg@333 20 Bool *seltag;
arg@565 21 int bx, by, bw, bh, bmw, masterd, screen, sx, sy, sw, sh, wax, way, waw, wah;
arg@524 22 unsigned int master, ntags, numlockmask;
arg@333 23 Atom wmatom[WMLast], netatom[NetLast];
arg@333 24 Bool running = True;
arg@333 25 Bool issel = True;
arg@333 26 Client *clients = NULL;
arg@333 27 Client *sel = NULL;
arg@446 28 Client *stack = NULL;
arg@333 29 Cursor cursor[CurLast];
arg@333 30 Display *dpy;
arg@333 31 DC dc = {0};
arg@333 32 Window root, barwin;
arg@333 33
garbeam@84 34 /* static */
garbeam@0 35
arg@123 36 static int (*xerrorxlib)(Display *, XErrorEvent *);
arg@302 37 static Bool otherwm, readin;
garbeam@0 38
garbeam@0 39 static void
arg@487 40 cleanup(void) {
arg@302 41 close(STDIN_FILENO);
garbeam@76 42 while(sel) {
arg@99 43 resize(sel, True, TopLeft);
garbeam@76 44 unmanage(sel);
garbeam@76 45 }
arg@295 46 if(dc.font.set)
arg@295 47 XFreeFontSet(dpy, dc.font.set);
arg@295 48 else
arg@295 49 XFreeFont(dpy, dc.font.xfont);
arg@292 50 XUngrabKey(dpy, AnyKey, AnyModifier, root);
arg@295 51 XFreePixmap(dpy, dc.drawable);
arg@295 52 XFreeGC(dpy, dc.gc);
arg@309 53 XDestroyWindow(dpy, barwin);
garbeam@76 54 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
arg@292 55 XSync(dpy, False);
arg@433 56 free(seltag);
garbeam@76 57 }
garbeam@0 58
garbeam@0 59 static void
arg@487 60 scan(void) {
garbeam@0 61 unsigned int i, num;
arg@123 62 Window *wins, d1, d2;
garbeam@0 63 XWindowAttributes wa;
garbeam@0 64
arg@292 65 wins = NULL;
garbeam@0 66 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 67 for(i = 0; i < num; i++) {
garbeam@0 68 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 69 continue;
garbeam@0 70 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 71 continue;
garbeam@0 72 if(wa.map_state == IsViewable)
garbeam@10 73 manage(wins[i], &wa);
garbeam@0 74 }
garbeam@0 75 }
garbeam@0 76 if(wins)
garbeam@0 77 XFree(wins);
garbeam@0 78 }
garbeam@0 79
arg@333 80 static void
arg@487 81 setup(void) {
arg@333 82 int i, j;
arg@333 83 unsigned int mask;
arg@333 84 Window w;
arg@333 85 XModifierKeymap *modmap;
arg@333 86 XSetWindowAttributes wa;
arg@333 87
arg@333 88 /* init atoms */
arg@333 89 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
arg@333 90 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
arg@333 91 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
arg@333 92 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
arg@333 93 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
arg@333 94 PropModeReplace, (unsigned char *) netatom, NetLast);
arg@333 95 /* init cursors */
arg@333 96 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
arg@333 97 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
arg@333 98 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
arg@532 99 /* init modifier map */
arg@333 100 modmap = XGetModifierMapping(dpy);
arg@333 101 for (i = 0; i < 8; i++) {
arg@333 102 for (j = 0; j < modmap->max_keypermod; j++) {
arg@333 103 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
arg@333 104 numlockmask = (1 << i);
arg@333 105 }
arg@333 106 }
arg@333 107 XFree(modmap);
arg@532 108 /* select for events */
arg@461 109 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
arg@461 110 | EnterWindowMask | LeaveWindowMask;
arg@333 111 wa.cursor = cursor[CurNormal];
arg@333 112 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
arg@333 113 grabkeys();
arg@333 114 initrregs();
arg@333 115 for(ntags = 0; tags[ntags]; ntags++);
arg@333 116 seltag = emallocz(sizeof(Bool) * ntags);
arg@333 117 seltag[0] = True;
arg@333 118 /* style */
arg@353 119 dc.norm[ColBG] = getcolor(NORMBGCOLOR);
arg@353 120 dc.norm[ColFG] = getcolor(NORMFGCOLOR);
arg@353 121 dc.sel[ColBG] = getcolor(SELBGCOLOR);
arg@353 122 dc.sel[ColFG] = getcolor(SELFGCOLOR);
arg@353 123 dc.status[ColBG] = getcolor(STATUSBGCOLOR);
arg@353 124 dc.status[ColFG] = getcolor(STATUSFGCOLOR);
arg@333 125 setfont(FONT);
arg@532 126 /* geometry */
arg@530 127 bmw = textw(TILESYMBOL) > textw(FLOATSYMBOL) ? textw(TILESYMBOL) : textw(FLOATSYMBOL);
arg@333 128 sx = sy = 0;
arg@333 129 sw = DisplayWidth(dpy, screen);
arg@333 130 sh = DisplayHeight(dpy, screen);
arg@524 131 master = MASTER;
arg@532 132 /* bar */
arg@333 133 bx = by = 0;
arg@333 134 bw = sw;
arg@353 135 dc.h = bh = dc.font.height + 2;
arg@333 136 wa.override_redirect = 1;
arg@333 137 wa.background_pixmap = ParentRelative;
arg@333 138 wa.event_mask = ButtonPressMask | ExposureMask;
arg@333 139 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
arg@333 140 CopyFromParent, DefaultVisual(dpy, screen),
arg@333 141 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
arg@333 142 XDefineCursor(dpy, barwin, cursor[CurNormal]);
arg@333 143 XMapRaised(dpy, barwin);
arg@532 144 strcpy(stext, "dwm-"VERSION);
arg@565 145 /* windowarea */
arg@565 146 wax = sx;
arg@565 147 way = bh;
arg@565 148 wah = sh - bh;
arg@565 149 waw = sw;
arg@532 150 /* pixmap for everything */
arg@333 151 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
arg@333 152 dc.gc = XCreateGC(dpy, root, 0, 0);
arg@344 153 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
arg@532 154 /* multihead support */
arg@333 155 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
arg@333 156 }
arg@333 157
garbeam@76 158 /*
garbeam@76 159 * Startup Error handler to check if another window manager
garbeam@76 160 * is already running.
garbeam@76 161 */
garbeam@76 162 static int
arg@461 163 xerrorstart(Display *dsply, XErrorEvent *ee) {
garbeam@76 164 otherwm = True;
garbeam@76 165 return -1;
garbeam@76 166 }
garbeam@76 167
garbeam@84 168 /* extern */
garbeam@84 169
garbeam@13 170 int
arg@461 171 getproto(Window w) {
arg@329 172 int i, format, protos, status;
arg@328 173 unsigned long extra, res;
arg@328 174 Atom *protocols, real;
garbeam@13 175
arg@329 176 protos = 0;
arg@329 177 status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
arg@329 178 XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
arg@328 179 if(status != Success || protocols == 0)
garbeam@13 180 return protos;
arg@329 181 for(i = 0; i < res; i++)
garbeam@77 182 if(protocols[i] == wmatom[WMDelete])
arg@157 183 protos |= PROTODELWIN;
arg@328 184 free(protocols);
garbeam@13 185 return protos;
garbeam@13 186 }
garbeam@13 187
garbeam@13 188 void
arg@461 189 sendevent(Window w, Atom a, long value) {
garbeam@13 190 XEvent e;
garbeam@13 191
garbeam@13 192 e.type = ClientMessage;
garbeam@13 193 e.xclient.window = w;
garbeam@13 194 e.xclient.message_type = a;
garbeam@13 195 e.xclient.format = 32;
garbeam@13 196 e.xclient.data.l[0] = value;
garbeam@13 197 e.xclient.data.l[1] = CurrentTime;
garbeam@13 198 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@79 199 XSync(dpy, False);
garbeam@13 200 }
garbeam@13 201
garbeam@76 202 void
arg@461 203 quit(Arg *arg) {
arg@302 204 readin = running = False;
garbeam@75 205 }
garbeam@75 206
arg@532 207 /* There's no way to check accesses to destroyed windows, thus those cases are
garbeam@84 208 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
arg@455 209 * default error handler, which may call exit.
garbeam@0 210 */
garbeam@10 211 int
arg@461 212 xerror(Display *dpy, XErrorEvent *ee) {
garbeam@75 213 if(ee->error_code == BadWindow
arg@123 214 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
arg@123 215 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
arg@123 216 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
arg@123 217 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
arg@123 218 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
arg@458 219 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
arg@458 220 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
garbeam@0 221 return 0;
garbeam@34 222 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
arg@123 223 ee->request_code, ee->error_code);
arg@455 224 return xerrorxlib(dpy, ee); /* may call exit */
garbeam@27 225 }
garbeam@27 226
garbeam@0 227 int
arg@461 228 main(int argc, char *argv[]) {
arg@333 229 int r, xfd;
garbeam@59 230 fd_set rd;
garbeam@0 231
arg@137 232 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
arg@137 233 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
arg@137 234 exit(EXIT_SUCCESS);
garbeam@0 235 }
arg@137 236 else if(argc != 1)
arg@137 237 eprint("usage: dwm [-v]\n");
garbeam@0 238 dpy = XOpenDisplay(0);
garbeam@0 239 if(!dpy)
arg@197 240 eprint("dwm: cannot open display\n");
arg@265 241 xfd = ConnectionNumber(dpy);
garbeam@0 242 screen = DefaultScreen(dpy);
garbeam@0 243 root = RootWindow(dpy, screen);
garbeam@75 244 otherwm = False;
garbeam@75 245 XSetErrorHandler(xerrorstart);
arg@197 246 /* this causes an error if some other window manager is running */
garbeam@0 247 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@78 248 XSync(dpy, False);
garbeam@75 249 if(otherwm)
garbeam@75 250 eprint("dwm: another window manager is already running\n");
garbeam@0 251
arg@292 252 XSync(dpy, False);
garbeam@78 253 XSetErrorHandler(NULL);
garbeam@75 254 xerrorxlib = XSetErrorHandler(xerror);
arg@275 255 XSync(dpy, False);
arg@333 256 setup();
garbeam@74 257 drawstatus();
garbeam@75 258 scan();
garbeam@3 259
arg@214 260 /* main event loop, also reads status text from stdin */
arg@242 261 XSync(dpy, False);
arg@292 262 procevent();
arg@302 263 readin = True;
garbeam@5 264 while(running) {
garbeam@59 265 FD_ZERO(&rd);
arg@164 266 if(readin)
arg@164 267 FD_SET(STDIN_FILENO, &rd);
arg@265 268 FD_SET(xfd, &rd);
arg@333 269 r = select(xfd + 1, &rd, NULL, NULL, NULL);
arg@333 270 if((r == -1) && (errno == EINTR))
garbeam@59 271 continue;
arg@333 272 if(r > 0) {
arg@164 273 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
arg@164 274 readin = NULL != fgets(stext, sizeof(stext), stdin);
arg@164 275 if(readin)
arg@164 276 stext[strlen(stext) - 1] = 0;
arg@162 277 else
arg@164 278 strcpy(stext, "broken pipe");
garbeam@74 279 drawstatus();
garbeam@59 280 }
garbeam@59 281 }
arg@333 282 else if(r < 0)
arg@316 283 eprint("select failed\n");
arg@293 284 procevent();
garbeam@5 285 }
garbeam@0 286 cleanup();
garbeam@0 287 XCloseDisplay(dpy);
garbeam@0 288 return 0;
garbeam@0 289 }