Mercurial > aewl
annotate wm.c @ 19:b5510d0c6d43
added basic mouse support (actually we don't need more)
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Tue, 11 Jul 2006 21:41:49 +0200 |
| parents | 359b6e563b95 |
| children | 3ef108a5ca0a |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> | |
| 3 * See LICENSE file for license details. | |
| 4 */ | |
| 5 | |
| 14 | 6 #include <errno.h> |
| 7 | |
| 0 | 8 #include <stdarg.h> |
| 9 #include <stdio.h> | |
| 10 #include <stdlib.h> | |
| 11 | |
| 14 | 12 #include <sys/types.h> |
| 13 #include <sys/time.h> | |
| 14 | |
| 0 | 15 #include <X11/cursorfont.h> |
| 16 #include <X11/Xatom.h> | |
| 17 #include <X11/Xproto.h> | |
| 18 | |
| 19 #include "wm.h" | |
| 20 | |
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21 /* X structs */ |
| 0 | 22 Display *dpy; |
| 5 | 23 Window root, barwin; |
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24 Atom wm_atom[WMLast], net_atom[NetLast]; |
| 0 | 25 Cursor cursor[CurLast]; |
| 5 | 26 XRectangle rect, barrect; |
| 27 Bool running = True; | |
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28 Bool sel_screen; |
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29 |
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30 char statustext[1024], tag[256]; |
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31 int screen; |
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32 |
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33 Brush brush = {0}; |
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34 Client *clients = NULL; |
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35 Client *stack = NULL; |
| 0 | 36 |
| 37 static Bool other_wm_running; | |
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38 static const char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n"; |
| 0 | 39 static int (*x_error_handler) (Display *, XErrorEvent *); |
| 40 | |
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41 static const char *status[] = { |
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42 "sh", "-c", "echo -n `date '+%Y/%m/%d %H:%M'`" |
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43 " `uptime | sed 's/.*://; s/,//g'`" |
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44 " `acpi | awk '{print $4}' | sed 's/,//'`", 0 |
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45 }; |
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46 |
| 0 | 47 static void |
| 48 usage() | |
| 49 { | |
| 50 fputs("usage: gridwm [-v]\n", stderr); | |
| 51 exit(1); | |
| 52 } | |
| 53 | |
| 54 static void | |
| 55 scan_wins() | |
| 56 { | |
| 57 unsigned int i, num; | |
| 58 Window *wins; | |
| 59 XWindowAttributes wa; | |
| 60 Window d1, d2; | |
| 61 | |
| 62 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { | |
| 63 for(i = 0; i < num; i++) { | |
| 64 if(!XGetWindowAttributes(dpy, wins[i], &wa)) | |
| 65 continue; | |
| 66 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) | |
| 67 continue; | |
| 68 if(wa.map_state == IsViewable) | |
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69 manage(wins[i], &wa); |
| 0 | 70 } |
| 71 } | |
| 72 if(wins) | |
| 73 XFree(wins); | |
| 74 } | |
| 75 | |
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76 static int |
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77 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop) |
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78 { |
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79 Atom real; |
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80 int format; |
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81 unsigned long res, extra; |
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82 int status; |
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83 |
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84 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format, |
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85 &res, &extra, prop); |
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86 |
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87 if(status != Success || *prop == 0) { |
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88 return 0; |
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89 } |
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90 if(res == 0) { |
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91 free((void *) *prop); |
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92 } |
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93 return res; |
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94 } |
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95 |
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96 int |
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97 win_proto(Window w) |
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98 { |
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99 Atom *protocols; |
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100 long res; |
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101 int protos = 0; |
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102 int i; |
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103 |
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104 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, |
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105 ((unsigned char **) &protocols)); |
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106 if(res <= 0) { |
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107 return protos; |
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108 } |
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109 for(i = 0; i < res; i++) { |
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110 if(protocols[i] == wm_atom[WMDelete]) |
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111 protos |= WM_PROTOCOL_DELWIN; |
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112 } |
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113 free((char *) protocols); |
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114 return protos; |
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115 } |
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116 |
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117 void |
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118 send_message(Window w, Atom a, long value) |
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119 { |
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120 XEvent e; |
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121 |
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122 e.type = ClientMessage; |
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123 e.xclient.window = w; |
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124 e.xclient.message_type = a; |
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125 e.xclient.format = 32; |
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126 e.xclient.data.l[0] = value; |
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127 e.xclient.data.l[1] = CurrentTime; |
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128 XSendEvent(dpy, w, False, NoEventMask, &e); |
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129 XFlush(dpy); |
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130 } |
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131 |
| 0 | 132 /* |
| 133 * There's no way to check accesses to destroyed windows, thus | |
| 134 * those cases are ignored (especially on UnmapNotify's). | |
| 135 * Other types of errors call Xlib's default error handler, which | |
| 136 * calls exit(). | |
| 137 */ | |
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138 int |
| 0 | 139 error_handler(Display *dpy, XErrorEvent *error) |
| 140 { | |
| 141 if(error->error_code == BadWindow | |
| 142 || (error->request_code == X_SetInputFocus | |
| 143 && error->error_code == BadMatch) | |
| 144 || (error->request_code == X_PolyText8 | |
| 145 && error->error_code == BadDrawable) | |
| 146 || (error->request_code == X_PolyFillRectangle | |
| 147 && error->error_code == BadDrawable) | |
| 148 || (error->request_code == X_PolySegment | |
| 149 && error->error_code == BadDrawable) | |
| 150 || (error->request_code == X_ConfigureWindow | |
| 151 && error->error_code == BadMatch) | |
| 152 || (error->request_code == X_GrabKey | |
| 153 && error->error_code == BadAccess)) | |
| 154 return 0; | |
| 155 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n", | |
| 156 error->request_code, error->error_code); | |
| 157 return x_error_handler(dpy, error); /* may call exit() */ | |
| 158 } | |
| 159 | |
| 160 /* | |
| 161 * Startup Error handler to check if another window manager | |
| 162 * is already running. | |
| 163 */ | |
| 164 static int | |
| 165 startup_error_handler(Display *dpy, XErrorEvent *error) | |
| 166 { | |
| 167 other_wm_running = True; | |
| 168 return -1; | |
| 169 } | |
| 170 | |
| 171 static void | |
| 172 cleanup() | |
| 173 { | |
| 14 | 174 while(clients) |
| 175 unmanage(clients); | |
| 0 | 176 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); |
| 177 } | |
| 178 | |
| 179 int | |
| 180 main(int argc, char *argv[]) | |
| 181 { | |
| 182 int i; | |
| 183 XSetWindowAttributes wa; | |
| 184 unsigned int mask; | |
| 185 Window w; | |
| 5 | 186 XEvent ev; |
| 14 | 187 fd_set fds; |
| 188 struct timeval t, timeout = { | |
| 189 .tv_usec = 0, | |
| 190 .tv_sec = STATUSDELAY, | |
| 191 }; | |
| 0 | 192 |
| 193 /* command line args */ | |
| 194 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) { | |
| 195 switch (argv[i][1]) { | |
| 196 case 'v': | |
| 197 fprintf(stdout, "%s", version); | |
| 198 exit(0); | |
| 199 break; | |
| 200 default: | |
| 201 usage(); | |
| 202 break; | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 dpy = XOpenDisplay(0); | |
| 207 if(!dpy) | |
| 208 error("gridwm: cannot connect X server\n"); | |
| 209 | |
| 210 screen = DefaultScreen(dpy); | |
| 211 root = RootWindow(dpy, screen); | |
| 212 | |
| 213 /* check if another WM is already running */ | |
| 214 other_wm_running = False; | |
| 215 XSetErrorHandler(startup_error_handler); | |
| 216 /* this causes an error if some other WM is running */ | |
| 217 XSelectInput(dpy, root, SubstructureRedirectMask); | |
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218 XFlush(dpy); |
| 0 | 219 |
| 220 if(other_wm_running) | |
| 221 error("gridwm: another window manager is already running\n"); | |
| 222 | |
| 223 rect.x = rect.y = 0; | |
| 224 rect.width = DisplayWidth(dpy, screen); | |
| 225 rect.height = DisplayHeight(dpy, screen); | |
| 226 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); | |
| 227 | |
| 228 XSetErrorHandler(0); | |
| 229 x_error_handler = XSetErrorHandler(error_handler); | |
| 230 | |
| 231 /* init atoms */ | |
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232 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); |
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233 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); |
| 0 | 234 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); |
| 235 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); | |
| 236 | |
| 237 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32, | |
| 238 PropModeReplace, (unsigned char *) net_atom, NetLast); | |
| 239 | |
| 240 | |
| 241 /* init cursors */ | |
| 242 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); | |
| 243 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); | |
| 244 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); | |
| 245 | |
| 8 | 246 update_keys(); |
| 0 | 247 |
| 5 | 248 brush.drawable = XCreatePixmap(dpy, root, rect.width, rect.height, |
| 0 | 249 DefaultDepth(dpy, screen)); |
| 5 | 250 brush.gc = XCreateGC(dpy, root, 0, 0); |
| 251 | |
| 252 /* style */ | |
| 253 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR); | |
| 254 loadfont(dpy, &brush.font, FONT); | |
| 255 | |
| 256 wa.override_redirect = 1; | |
| 257 wa.background_pixmap = ParentRelative; | |
| 258 wa.event_mask = ExposureMask; | |
| 259 | |
| 260 barrect = rect; | |
| 261 barrect.height = labelheight(&brush.font); | |
| 262 barrect.y = rect.height - barrect.height; | |
| 263 barwin = XCreateWindow(dpy, root, barrect.x, barrect.y, | |
| 264 barrect.width, barrect.height, 0, DefaultDepth(dpy, screen), | |
| 265 CopyFromParent, DefaultVisual(dpy, screen), | |
| 266 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); | |
| 267 XDefineCursor(dpy, barwin, cursor[CurNormal]); | |
| 268 XMapRaised(dpy, barwin); | |
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269 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status); |
| 5 | 270 draw_bar(); |
| 0 | 271 |
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272 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \ |
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273 | LeaveWindowMask; |
| 0 | 274 wa.cursor = cursor[CurNormal]; |
| 275 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); | |
| 276 | |
| 5 | 277 scan_wins(); |
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278 |
| 5 | 279 while(running) { |
| 14 | 280 if(XPending(dpy) > 0) { |
| 281 XNextEvent(dpy, &ev); | |
| 282 if(handler[ev.type]) | |
| 283 (handler[ev.type]) (&ev); /* call handler */ | |
| 284 continue; | |
| 285 } | |
| 286 FD_ZERO(&fds); | |
| 287 FD_SET(ConnectionNumber(dpy), &fds); | |
| 288 t = timeout; | |
| 289 if(select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &t) > 0) | |
| 290 continue; | |
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291 else if(errno != EINTR) { |
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292 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status); |
| 14 | 293 draw_bar(); |
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294 } |
| 5 | 295 } |
| 0 | 296 |
| 297 cleanup(); | |
| 298 XCloseDisplay(dpy); | |
| 299 | |
| 300 return 0; | |
| 301 } |