2 * awesome.c - awesome main functions
4 * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <sys/select.h>
27 #include <sys/types.h>
29 #include <sys/socket.h>
33 #include <X11/cursorfont.h>
34 #include <X11/keysym.h>
35 #include <X11/Xatom.h>
36 #include <X11/Xproto.h>
37 #include <X11/Xutil.h>
38 #include <X11/extensions/shape.h>
39 #include <X11/extensions/Xrandr.h>
46 #include "statusbar.h"
52 #include "awesome-client.h"
54 static int (*xerrorxlib
) (Display
*, XErrorEvent
*);
55 static Bool running
= True
;
57 AwesomeConf globalconf
;
59 /** Scan X to find windows to manage
65 int screen
, real_screen
;
66 Window
*wins
= NULL
, d1
, d2
;
69 for(screen
= 0; screen
< ScreenCount(globalconf
.display
); screen
++)
71 if(XQueryTree(globalconf
.display
, RootWindow(globalconf
.display
, screen
), &d1
, &d2
, &wins
, &num
))
74 for(i
= 0; i
< num
; i
++)
76 if(!XGetWindowAttributes(globalconf
.display
, wins
[i
], &wa
)
77 || wa
.override_redirect
78 || XGetTransientForHint(globalconf
.display
, wins
[i
], &d1
))
80 if(wa
.map_state
== IsViewable
|| window_getstate(wins
[i
]) == IconicState
)
83 real_screen
= get_screen_bycoord(wa
.x
, wa
.y
);
84 client_manage(wins
[i
], &wa
, real_screen
);
87 /* now the transients */
88 for(i
= 0; i
< num
; i
++)
90 if(!XGetWindowAttributes(globalconf
.display
, wins
[i
], &wa
))
92 if(XGetTransientForHint(globalconf
.display
, wins
[i
], &d1
)
93 && (wa
.map_state
== IsViewable
|| window_getstate(wins
[i
]) == IconicState
))
96 real_screen
= get_screen_bycoord(wa
.x
, wa
.y
);
97 client_manage(wins
[i
], &wa
, real_screen
);
106 /** Setup everything before running
107 * \param screen Screen number
108 * \todo clean things...
113 XSetWindowAttributes wa
;
114 Statusbar
*statusbar
;
115 int phys_screen
= get_phys_screen(screen
);
118 globalconf
.cursor
[CurNormal
] = XCreateFontCursor(globalconf
.display
, XC_left_ptr
);
119 globalconf
.cursor
[CurResize
] = XCreateFontCursor(globalconf
.display
, XC_sizing
);
120 globalconf
.cursor
[CurMove
] = XCreateFontCursor(globalconf
.display
, XC_fleur
);
122 /* select for events */
123 wa
.event_mask
= SubstructureRedirectMask
| SubstructureNotifyMask
124 | EnterWindowMask
| LeaveWindowMask
| StructureNotifyMask
;
125 wa
.cursor
= globalconf
.cursor
[CurNormal
];
127 XChangeWindowAttributes(globalconf
.display
,
128 RootWindow(globalconf
.display
, phys_screen
),
129 CWEventMask
| CWCursor
, &wa
);
131 XSelectInput(globalconf
.display
,
132 RootWindow(globalconf
.display
, phys_screen
),
135 grabkeys(phys_screen
);
137 for(statusbar
= globalconf
.screens
[screen
].statusbar
; statusbar
; statusbar
= statusbar
->next
)
138 statusbar_init(statusbar
, screen
);
141 /** Startup Error handler to check if another window manager
142 * is already running.
143 * \param disp Display
144 * \param ee Error event
146 static int __attribute__ ((noreturn
))
147 xerrorstart(Display
* disp
__attribute__ ((unused
)),
148 XErrorEvent
* ee
__attribute__ ((unused
)))
150 eprint("another window manager is already running\n");
154 * \param screen Screen ID
156 * \ingroup ui_callback
159 uicb_quit(int screen
__attribute__ ((unused
)), char *arg
__attribute__ ((unused
)))
165 exit_on_signal(int sig
__attribute__ ((unused
)))
170 /* There's no way to check accesses to destroyed windows, thus those cases are
171 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
172 * default error handler, which may call exit.
175 xerror(Display
* edpy
, XErrorEvent
* ee
)
177 if(ee
->error_code
== BadWindow
178 || (ee
->request_code
== X_SetInputFocus
&& ee
->error_code
== BadMatch
)
179 || (ee
->request_code
== X_PolyText8
&& ee
->error_code
== BadDrawable
)
180 || (ee
->request_code
== X_PolyFillRectangle
181 && ee
->error_code
== BadDrawable
)
182 || (ee
->request_code
== X_PolySegment
&& ee
->error_code
== BadDrawable
)
183 || (ee
->request_code
== X_ConfigureWindow
184 && ee
->error_code
== BadMatch
) || (ee
->request_code
== X_GrabKey
185 && ee
->error_code
== BadAccess
)
186 || (ee
->request_code
== X_CopyArea
&& ee
->error_code
== BadDrawable
))
188 warn("fatal error: request code=%d, error code=%d\n", ee
->request_code
, ee
->error_code
);
189 return xerrorxlib(edpy
, ee
); /* may call exit */
192 /** Hello, this is main
193 * \param argc who knows
194 * \param argv who knows
195 * \return EXIT_SUCCESS I hope
197 typedef void event_handler (XEvent
*);
199 main(int argc
, char *argv
[])
202 const char *confpath
= NULL
;
203 int r
, xfd
, e_dummy
, csfd
;
207 int shape_event
, randr_event_base
;
209 event_handler
**handler
;
210 struct sockaddr_un
*addr
;
215 if(!a_strcmp("-v", argv
[1]) || !a_strcmp("--version", argv
[1]))
217 printf("awesome " VERSION
" (" RELEASE
")\n");
220 else if(!a_strcmp("-c", argv
[1]))
222 if(a_strlen(argv
[2]))
225 eprint("-c require a file\n");
228 eprint("options: [-v | -c configfile]\n");
232 if(!(dpy
= XOpenDisplay(NULL
)))
233 eprint("cannot open display\n");
235 xfd
= ConnectionNumber(dpy
);
237 XSetErrorHandler(xerrorstart
);
238 for(screen
= 0; screen
< ScreenCount(dpy
); screen
++)
239 /* this causes an error if some other window manager is running */
240 XSelectInput(dpy
, RootWindow(dpy
, screen
), SubstructureRedirectMask
);
242 /* need to XSync to validate errorhandler */
244 XSetErrorHandler(NULL
);
245 xerrorxlib
= XSetErrorHandler(xerror
);
249 globalconf
.display
= dpy
;
251 /* init EWMH atoms */
254 /* init screens struct */
255 globalconf
.screens
= p_new(VirtScreen
, get_screen_count());
256 focus_add_client(NULL
);
259 config_parse(confpath
);
261 /* for each virtual screen */
262 for(screen
= 0; screen
< get_screen_count(); screen
++)
265 /* do this only for real screen */
266 for(screen
= 0; screen
< ScreenCount(dpy
); screen
++)
268 loadawesomeprops(screen
);
269 ewmh_set_supported_hints(screen
);
272 handler
= p_new(event_handler
*, LASTEvent
);
273 handler
[ButtonPress
] = handle_event_buttonpress
;
274 handler
[ConfigureRequest
] = handle_event_configurerequest
;
275 handler
[ConfigureNotify
] = handle_event_configurenotify
;
276 handler
[DestroyNotify
] = handle_event_destroynotify
;
277 handler
[EnterNotify
] = handle_event_enternotify
;
278 handler
[LeaveNotify
] = handle_event_leavenotify
;
279 handler
[Expose
] = handle_event_expose
;
280 handler
[KeyPress
] = handle_event_keypress
;
281 handler
[MappingNotify
] = handle_event_mappingnotify
;
282 handler
[MapRequest
] = handle_event_maprequest
;
283 handler
[PropertyNotify
] = handle_event_propertynotify
;
284 handler
[UnmapNotify
] = handle_event_unmapnotify
;
285 handler
[ClientMessage
] = handle_event_clientmessage
;
287 /* check for shape extension */
288 if((globalconf
.have_shape
= XShapeQueryExtension(dpy
, &shape_event
, &e_dummy
)))
290 p_realloc(&handler
, shape_event
+ 1);
291 handler
[shape_event
] = handle_event_shape
;
294 /* check for randr extension */
295 if((globalconf
.have_randr
= XRRQueryExtension(dpy
, &randr_event_base
, &e_dummy
)))
297 p_realloc(&handler
, randr_event_base
+ RRScreenChangeNotify
+ 1);
298 handler
[randr_event_base
+ RRScreenChangeNotify
] = handle_event_randr_screen_change_notify
;
306 csfd
= get_client_socket();
307 addr
= get_client_addr(getenv("DISPLAY"));
309 if(bind(csfd
, (const struct sockaddr
*) addr
, SUN_LEN(addr
)))
311 if(errno
== EADDRINUSE
)
313 if(unlink(addr
->sun_path
))
314 perror("error unlinking existing file");
315 if(bind(csfd
, (const struct sockaddr
*) addr
, SUN_LEN(addr
)))
316 perror("error binding UNIX domain socket");
319 perror("error binding UNIX domain socket");
322 /* register function for signals */
323 signal(SIGINT
, &exit_on_signal
);
324 signal(SIGTERM
, &exit_on_signal
);
325 signal(SIGHUP
, &exit_on_signal
);
327 /* main event loop, also reads status text from socket */
334 if(select(MAX(xfd
, csfd
) + 1, &rd
, NULL
, NULL
, NULL
) == -1)
338 eprint("select failed\n");
340 if(csfd
>= 0 && FD_ISSET(csfd
, &rd
))
341 switch (r
= recv(csfd
, buf
, sizeof(buf
)-1, MSG_TRUNC
))
344 perror("awesome: error reading UNIX domain socket");
350 if(r
>= ssizeof(buf
))
358 XNextEvent(dpy
, &ev
);
360 handler
[ev
.type
](&ev
); /* call handler */
364 if(csfd
> 0 && close(csfd
))
365 perror("error closing UNIX domain socket");
366 if(unlink(addr
->sun_path
))
367 perror("error unlinking UNIX domain socket");
374 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80