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 /* XGetWindowAttributes return 1 on success */
77 if(!XGetWindowAttributes(globalconf
.display
, wins
[i
], &wa
)
78 || wa
.override_redirect
79 || XGetTransientForHint(globalconf
.display
, wins
[i
], &d1
))
81 if(wa
.map_state
== IsViewable
|| window_getstate(wins
[i
]) == IconicState
)
84 real_screen
= get_screen_bycoord(wa
.x
, wa
.y
);
85 client_manage(wins
[i
], &wa
, real_screen
);
88 /* now the transients */
89 for(i
= 0; i
< num
; i
++)
91 if(!XGetWindowAttributes(globalconf
.display
, wins
[i
], &wa
))
93 if(XGetTransientForHint(globalconf
.display
, wins
[i
], &d1
)
94 && (wa
.map_state
== IsViewable
|| window_getstate(wins
[i
]) == IconicState
))
97 real_screen
= get_screen_bycoord(wa
.x
, wa
.y
);
98 client_manage(wins
[i
], &wa
, real_screen
);
107 /** Setup everything before running
108 * \param screen Screen number
109 * \todo clean things...
114 XSetWindowAttributes wa
;
115 Statusbar
*statusbar
;
116 int phys_screen
= get_phys_screen(screen
);
119 globalconf
.cursor
[CurNormal
] = XCreateFontCursor(globalconf
.display
, XC_left_ptr
);
120 globalconf
.cursor
[CurResize
] = XCreateFontCursor(globalconf
.display
, XC_sizing
);
121 globalconf
.cursor
[CurMove
] = XCreateFontCursor(globalconf
.display
, XC_fleur
);
123 /* select for events */
124 wa
.event_mask
= SubstructureRedirectMask
| SubstructureNotifyMask
125 | EnterWindowMask
| LeaveWindowMask
| StructureNotifyMask
;
126 wa
.cursor
= globalconf
.cursor
[CurNormal
];
128 XChangeWindowAttributes(globalconf
.display
,
129 RootWindow(globalconf
.display
, phys_screen
),
130 CWEventMask
| CWCursor
, &wa
);
132 XSelectInput(globalconf
.display
,
133 RootWindow(globalconf
.display
, phys_screen
),
136 grabkeys(phys_screen
);
138 for(statusbar
= globalconf
.screens
[screen
].statusbar
; statusbar
; statusbar
= statusbar
->next
)
139 statusbar_init(statusbar
, screen
);
142 /** Startup Error handler to check if another window manager
143 * is already running.
144 * \param disp Display
145 * \param ee Error event
147 static int __attribute__ ((noreturn
))
148 xerrorstart(Display
* disp
__attribute__ ((unused
)),
149 XErrorEvent
* ee
__attribute__ ((unused
)))
151 eprint("another window manager is already running\n");
155 * \param screen Screen ID
157 * \ingroup ui_callback
160 uicb_quit(int screen
__attribute__ ((unused
)), char *arg
__attribute__ ((unused
)))
166 exit_on_signal(int sig
__attribute__ ((unused
)))
171 /* There's no way to check accesses to destroyed windows, thus those cases are
172 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
173 * default error handler, which may call exit.
176 xerror(Display
* edpy
, XErrorEvent
* ee
)
178 if(ee
->error_code
== BadWindow
179 || (ee
->request_code
== X_SetInputFocus
&& ee
->error_code
== BadMatch
)
180 || (ee
->request_code
== X_PolyText8
&& ee
->error_code
== BadDrawable
)
181 || (ee
->request_code
== X_PolyFillRectangle
182 && ee
->error_code
== BadDrawable
)
183 || (ee
->request_code
== X_PolySegment
&& ee
->error_code
== BadDrawable
)
184 || (ee
->request_code
== X_ConfigureWindow
185 && ee
->error_code
== BadMatch
) || (ee
->request_code
== X_GrabKey
186 && ee
->error_code
== BadAccess
)
187 || (ee
->request_code
== X_CopyArea
&& ee
->error_code
== BadDrawable
))
189 warn("fatal error: request code=%d, error code=%d\n", ee
->request_code
, ee
->error_code
);
190 return xerrorxlib(edpy
, ee
); /* may call exit */
193 /** Hello, this is main
194 * \param argc who knows
195 * \param argv who knows
196 * \return EXIT_SUCCESS I hope
198 typedef void event_handler (XEvent
*);
200 main(int argc
, char *argv
[])
203 const char *confpath
= NULL
;
204 int r
, xfd
, e_dummy
, csfd
;
208 int shape_event
, randr_event_base
;
209 int screen
, screen_count
;
211 event_handler
**handler
;
212 struct sockaddr_un
*addr
;
217 if(!a_strcmp("-v", argv
[1]) || !a_strcmp("--version", argv
[1]))
219 printf("awesome " VERSION
" (" RELEASE
")\n");
222 else if(!a_strcmp("-c", argv
[1]))
224 if(a_strlen(argv
[2]))
227 eprint("-c require a file\n");
230 eprint("options: [-v | -c configfile]\n");
233 /* Text won't be printed correctly otherwise */
234 setlocale(LC_CTYPE
, "");
237 if(!(dpy
= XOpenDisplay(NULL
)))
238 eprint("cannot open display\n");
240 for(cmdlen
= 0, i
= 0; i
< argc
; i
++)
241 cmdlen
+= a_strlen(argv
[i
] + 1);
242 globalconf
.argv
= p_new(char, cmdlen
);
243 a_strcpy(globalconf
.argv
, cmdlen
, argv
[0]);
244 for(i
= 1; i
< argc
; i
++)
246 a_strcat(globalconf
.argv
, cmdlen
, " ");
247 a_strcat(globalconf
.argv
, cmdlen
, argv
[i
]);
250 xfd
= ConnectionNumber(dpy
);
252 XSetErrorHandler(xerrorstart
);
253 for(screen
= 0; screen
< ScreenCount(dpy
); screen
++)
254 /* this causes an error if some other window manager is running */
255 XSelectInput(dpy
, RootWindow(dpy
, screen
), SubstructureRedirectMask
);
257 /* need to XSync to validate errorhandler */
259 XSetErrorHandler(NULL
);
260 xerrorxlib
= XSetErrorHandler(xerror
);
264 globalconf
.display
= dpy
;
266 /* init EWMH atoms */
269 /* init screens struct */
270 screen_count
= get_screen_count();
271 globalconf
.screens
= p_new(VirtScreen
, screen_count
);
272 globalconf
.nscreens
= screen_count
;
273 focus_add_client(NULL
);
276 config_parse(confpath
);
278 /* for each virtual screen */
279 for(screen
= 0; screen
< get_screen_count(); screen
++)
282 /* do this only for real screen */
283 for(screen
= 0; screen
< ScreenCount(dpy
); screen
++)
285 loadawesomeprops(screen
);
286 ewmh_set_supported_hints(screen
);
289 handler
= p_new(event_handler
*, LASTEvent
);
290 handler
[ButtonPress
] = handle_event_buttonpress
;
291 handler
[ConfigureRequest
] = handle_event_configurerequest
;
292 handler
[ConfigureNotify
] = handle_event_configurenotify
;
293 handler
[DestroyNotify
] = handle_event_destroynotify
;
294 handler
[EnterNotify
] = handle_event_enternotify
;
295 handler
[LeaveNotify
] = handle_event_leavenotify
;
296 handler
[Expose
] = handle_event_expose
;
297 handler
[KeyPress
] = handle_event_keypress
;
298 handler
[MappingNotify
] = handle_event_mappingnotify
;
299 handler
[MapRequest
] = handle_event_maprequest
;
300 handler
[PropertyNotify
] = handle_event_propertynotify
;
301 handler
[UnmapNotify
] = handle_event_unmapnotify
;
302 handler
[ClientMessage
] = handle_event_clientmessage
;
304 /* check for shape extension */
305 if((globalconf
.have_shape
= XShapeQueryExtension(dpy
, &shape_event
, &e_dummy
)))
307 p_realloc(&handler
, shape_event
+ 1);
308 handler
[shape_event
] = handle_event_shape
;
311 /* check for randr extension */
312 if((globalconf
.have_randr
= XRRQueryExtension(dpy
, &randr_event_base
, &e_dummy
)))
314 p_realloc(&handler
, randr_event_base
+ RRScreenChangeNotify
+ 1);
315 handler
[randr_event_base
+ RRScreenChangeNotify
] = handle_event_randr_screen_change_notify
;
323 csfd
= get_client_socket();
324 addr
= get_client_addr(getenv("DISPLAY"));
326 if(bind(csfd
, (const struct sockaddr
*) addr
, SUN_LEN(addr
)))
328 if(errno
== EADDRINUSE
)
330 if(unlink(addr
->sun_path
))
331 perror("error unlinking existing file");
332 if(bind(csfd
, (const struct sockaddr
*) addr
, SUN_LEN(addr
)))
333 perror("error binding UNIX domain socket");
336 perror("error binding UNIX domain socket");
339 /* register function for signals */
340 signal(SIGINT
, &exit_on_signal
);
341 signal(SIGTERM
, &exit_on_signal
);
342 signal(SIGHUP
, &exit_on_signal
);
344 /* call this to at least grab root window clicks */
345 window_grabbuttons(DefaultScreen(dpy
), None
, False
, True
);
347 /* main event loop, also reads status text from socket */
354 if(select(MAX(xfd
, csfd
) + 1, &rd
, NULL
, NULL
, NULL
) == -1)
358 eprint("select failed\n");
360 if(csfd
>= 0 && FD_ISSET(csfd
, &rd
))
361 switch (r
= recv(csfd
, buf
, sizeof(buf
)-1, MSG_TRUNC
))
364 perror("awesome: error reading UNIX domain socket");
370 if(r
>= ssizeof(buf
))
378 XNextEvent(dpy
, &ev
);
380 handler
[ev
.type
](&ev
); /* call handler */
389 if(csfd
> 0 && close(csfd
))
390 perror("error closing UNIX domain socket");
391 if(unlink(addr
->sun_path
))
392 perror("error unlinking UNIX domain socket");
399 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80