dwm-meillo

annotate wm.c @ 8:7066ff2fe8bc

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added key handling
author Anselm R. Garbe <garbeam@wmii.de>
date Tue, 11 Jul 2006 11:50:18 +0200
parents 49e2fc9fb94f
children d567f430a81d
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@0 9
garbeam@0 10 #include <X11/cursorfont.h>
garbeam@0 11 #include <X11/Xatom.h>
garbeam@0 12 #include <X11/Xproto.h>
garbeam@0 13
garbeam@0 14 #include "wm.h"
garbeam@0 15
garbeam@3 16 /* X structs */
garbeam@0 17 Display *dpy;
garbeam@5 18 Window root, barwin;
garbeam@5 19 Atom wm_atom[WMLast], net_atom[NetLast];
garbeam@0 20 Cursor cursor[CurLast];
garbeam@5 21 XRectangle rect, barrect;
garbeam@5 22 Bool running = True;
garbeam@7 23 Client *client = NULL;
garbeam@3 24
garbeam@7 25 char *bartext, tag[256];
garbeam@3 26 int screen, sel_screen;
garbeam@3 27
garbeam@3 28 /* draw structs */
garbeam@3 29 Brush brush = {0};
garbeam@0 30
garbeam@0 31 enum { WM_PROTOCOL_DELWIN = 1 };
garbeam@0 32
garbeam@0 33 static Bool other_wm_running;
garbeam@0 34 static int (*x_error_handler) (Display *, XErrorEvent *);
garbeam@0 35 static char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
garbeam@0 36
garbeam@0 37 static void
garbeam@0 38 usage()
garbeam@0 39 {
garbeam@0 40 fputs("usage: gridwm [-v]\n", stderr);
garbeam@0 41 exit(1);
garbeam@0 42 }
garbeam@0 43
garbeam@0 44 static void
garbeam@0 45 scan_wins()
garbeam@0 46 {
garbeam@0 47 unsigned int i, num;
garbeam@0 48 Window *wins;
garbeam@0 49 XWindowAttributes wa;
garbeam@0 50 Window d1, d2;
garbeam@0 51
garbeam@0 52 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 53 for(i = 0; i < num; i++) {
garbeam@0 54 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 55 continue;
garbeam@0 56 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 57 continue;
garbeam@0 58 if(wa.map_state == IsViewable)
garbeam@6 59 manage(create_client(wins[i], &wa));
garbeam@0 60 }
garbeam@0 61 }
garbeam@0 62 if(wins)
garbeam@0 63 XFree(wins);
garbeam@0 64 }
garbeam@0 65
garbeam@0 66 static int
garbeam@0 67 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@0 68 {
garbeam@0 69 Atom real;
garbeam@0 70 int format;
garbeam@0 71 unsigned long res, extra;
garbeam@0 72 int status;
garbeam@0 73
garbeam@0 74 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@0 75 &res, &extra, prop);
garbeam@0 76
garbeam@7 77 if(status != Success || *prop == NULL) {
garbeam@0 78 return 0;
garbeam@0 79 }
garbeam@7 80 if(res == 0)
garbeam@0 81 free((void *) *prop);
garbeam@0 82 return res;
garbeam@0 83 }
garbeam@0 84
garbeam@0 85 int
garbeam@0 86 win_proto(Window w)
garbeam@0 87 {
garbeam@0 88 Atom *protocols;
garbeam@0 89 long res;
garbeam@0 90 int protos = 0;
garbeam@0 91 int i;
garbeam@0 92
garbeam@0 93 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
garbeam@0 94 ((unsigned char **) &protocols));
garbeam@0 95 if(res <= 0) {
garbeam@0 96 return protos;
garbeam@0 97 }
garbeam@0 98 for(i = 0; i < res; i++) {
garbeam@0 99 if(protocols[i] == wm_atom[WMDelete])
garbeam@0 100 protos |= WM_PROTOCOL_DELWIN;
garbeam@0 101 }
garbeam@0 102 free((char *) protocols);
garbeam@0 103 return protos;
garbeam@0 104 }
garbeam@0 105
garbeam@0 106 /*
garbeam@0 107 * There's no way to check accesses to destroyed windows, thus
garbeam@0 108 * those cases are ignored (especially on UnmapNotify's).
garbeam@0 109 * Other types of errors call Xlib's default error handler, which
garbeam@0 110 * calls exit().
garbeam@0 111 */
garbeam@0 112 static int
garbeam@0 113 error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 114 {
garbeam@0 115 if(error->error_code == BadWindow
garbeam@0 116 || (error->request_code == X_SetInputFocus
garbeam@0 117 && error->error_code == BadMatch)
garbeam@0 118 || (error->request_code == X_PolyText8
garbeam@0 119 && error->error_code == BadDrawable)
garbeam@0 120 || (error->request_code == X_PolyFillRectangle
garbeam@0 121 && error->error_code == BadDrawable)
garbeam@0 122 || (error->request_code == X_PolySegment
garbeam@0 123 && error->error_code == BadDrawable)
garbeam@0 124 || (error->request_code == X_ConfigureWindow
garbeam@0 125 && error->error_code == BadMatch)
garbeam@0 126 || (error->request_code == X_GrabKey
garbeam@0 127 && error->error_code == BadAccess))
garbeam@0 128 return 0;
garbeam@0 129 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
garbeam@0 130 error->request_code, error->error_code);
garbeam@0 131 return x_error_handler(dpy, error); /* may call exit() */
garbeam@0 132 }
garbeam@0 133
garbeam@0 134 /*
garbeam@0 135 * Startup Error handler to check if another window manager
garbeam@0 136 * is already running.
garbeam@0 137 */
garbeam@0 138 static int
garbeam@0 139 startup_error_handler(Display *dpy, XErrorEvent *error)
garbeam@0 140 {
garbeam@0 141 other_wm_running = True;
garbeam@0 142 return -1;
garbeam@0 143 }
garbeam@0 144
garbeam@0 145 static void
garbeam@0 146 cleanup()
garbeam@0 147 {
garbeam@0 148 /*
garbeam@0 149 Client *c;
garbeam@0 150 for(c=client; c; c=c->next)
garbeam@0 151 reparent_client(c, root, c->sel->rect.x, c->sel->rect.y);
garbeam@0 152 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@0 153 */
garbeam@0 154 }
garbeam@0 155
garbeam@0 156 int
garbeam@0 157 main(int argc, char *argv[])
garbeam@0 158 {
garbeam@0 159 int i;
garbeam@0 160 XSetWindowAttributes wa;
garbeam@0 161 unsigned int mask;
garbeam@0 162 Window w;
garbeam@5 163 XEvent ev;
garbeam@0 164
garbeam@0 165 /* command line args */
garbeam@0 166 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
garbeam@0 167 switch (argv[i][1]) {
garbeam@0 168 case 'v':
garbeam@0 169 fprintf(stdout, "%s", version);
garbeam@0 170 exit(0);
garbeam@0 171 break;
garbeam@0 172 default:
garbeam@0 173 usage();
garbeam@0 174 break;
garbeam@0 175 }
garbeam@0 176 }
garbeam@0 177
garbeam@0 178 dpy = XOpenDisplay(0);
garbeam@0 179 if(!dpy)
garbeam@0 180 error("gridwm: cannot connect X server\n");
garbeam@0 181
garbeam@0 182 screen = DefaultScreen(dpy);
garbeam@0 183 root = RootWindow(dpy, screen);
garbeam@0 184
garbeam@0 185 /* check if another WM is already running */
garbeam@0 186 other_wm_running = False;
garbeam@0 187 XSetErrorHandler(startup_error_handler);
garbeam@0 188 /* this causes an error if some other WM is running */
garbeam@0 189 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@3 190 XFlush(dpy);
garbeam@0 191
garbeam@0 192 if(other_wm_running)
garbeam@0 193 error("gridwm: another window manager is already running\n");
garbeam@0 194
garbeam@0 195 rect.x = rect.y = 0;
garbeam@0 196 rect.width = DisplayWidth(dpy, screen);
garbeam@0 197 rect.height = DisplayHeight(dpy, screen);
garbeam@0 198 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@0 199
garbeam@0 200 XSetErrorHandler(0);
garbeam@0 201 x_error_handler = XSetErrorHandler(error_handler);
garbeam@0 202
garbeam@0 203 /* init atoms */
garbeam@0 204 wm_atom[WMState] = XInternAtom(dpy, "WM_STATE", False);
garbeam@0 205 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@0 206 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@0 207 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@0 208 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@0 209
garbeam@0 210 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
garbeam@0 211 PropModeReplace, (unsigned char *) net_atom, NetLast);
garbeam@0 212
garbeam@0 213
garbeam@0 214 /* init cursors */
garbeam@0 215 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 216 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 217 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 218
garbeam@8 219 update_keys();
garbeam@0 220
garbeam@5 221 brush.drawable = XCreatePixmap(dpy, root, rect.width, rect.height,
garbeam@0 222 DefaultDepth(dpy, screen));
garbeam@5 223 brush.gc = XCreateGC(dpy, root, 0, 0);
garbeam@5 224
garbeam@5 225 /* style */
garbeam@5 226 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
garbeam@5 227 loadfont(dpy, &brush.font, FONT);
garbeam@5 228
garbeam@5 229 wa.override_redirect = 1;
garbeam@5 230 wa.background_pixmap = ParentRelative;
garbeam@5 231 wa.event_mask = ExposureMask;
garbeam@5 232
garbeam@5 233 barrect = rect;
garbeam@5 234 barrect.height = labelheight(&brush.font);
garbeam@5 235 barrect.y = rect.height - barrect.height;
garbeam@5 236 barwin = XCreateWindow(dpy, root, barrect.x, barrect.y,
garbeam@5 237 barrect.width, barrect.height, 0, DefaultDepth(dpy, screen),
garbeam@5 238 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@5 239 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@7 240 bartext = NULL;
garbeam@5 241 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@5 242 XMapRaised(dpy, barwin);
garbeam@5 243 draw_bar();
garbeam@0 244
garbeam@0 245 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
garbeam@0 246 wa.cursor = cursor[CurNormal];
garbeam@0 247 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 248
garbeam@5 249 scan_wins();
garbeam@3 250
garbeam@5 251 while(running) {
garbeam@5 252 XNextEvent(dpy, &ev);
garbeam@5 253 if(handler[ev.type])
garbeam@5 254 (handler[ev.type]) (&ev); /* call handler */
garbeam@5 255 }
garbeam@0 256
garbeam@0 257 cleanup();
garbeam@0 258 XCloseDisplay(dpy);
garbeam@0 259
garbeam@0 260 return 0;
garbeam@0 261 }