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code.delx.au - spectrwm/blob - lib/swm_hack.c
2 * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
3 * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 * Copyright (C) 2005-2007 Carsten Haitzler
19 * Copyright (C) 2006-2007 Kim Woelders
21 * Permission is hereby granted, free of charge, to any person obtaining a copy
22 * of this software and associated documentation files (the "Software"), to
23 * deal in the Software without restriction, including without limitation the
24 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
25 * sell copies of the Software, and to permit persons to whom the Software is
26 * furnished to do so, subject to the following conditions:
28 * The above copyright notice and this permission notice shall be included in
29 * all copies of the Software, its documentation and marketing & publicity
30 * materials, and acknowledgment shall be given in the documentation, materials
31 * and software packages that this Software was used.
33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
36 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
37 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
38 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
41 * Basic hack mechanism (dlopen etc.) taken from e_hack.c in e17.
49 #include <X11/Xatom.h>
50 #include <X11/Intrinsic.h>
52 /* dlopened libs so we can find the symbols in the real one to call them */
53 static void *lib_xlib
= NULL
;
54 static void *lib_xtlib
= NULL
;
56 static Window root
= None
;
58 static Display
*display
= NULL
;
60 /* Find our root window */
69 root
= DefaultRootWindow(dpy
);
71 s
= getenv("ENL_WM_ROOT");
75 sscanf(s
, "%lx", &root
);
80 typedef Atom (XIA
) (Display
*display
, char *atom_name
, Bool
83 typedef int (XCP
) (Display
*display
, Window w
, Atom property
,
84 Atom type
, int format
, int mode
, unsigned char *data
,
87 #define SWM_PROPLEN (16)
89 set_property(Display
*dpy
, Window id
, char *name
, char *val
)
92 char prop
[SWM_PROPLEN
];
93 static XIA
*xia
= NULL
;
94 static XCP
*xcp
= NULL
;
96 /* find the real Xlib and the real X function */
98 lib_xlib
= dlopen("libX11.so", RTLD_GLOBAL
| RTLD_LAZY
);
100 xia
= (XIA
*) dlsym(lib_xlib
, "XInternAtom");
102 xcp
= (XCP
*) dlsym(lib_xlib
, "XChangeProperty");
104 /* Try to update the window's workspace property */
105 atom
= (*xia
)(dpy
, name
, False
);
107 if (snprintf(prop
, SWM_PROPLEN
, "%s", val
) < SWM_PROPLEN
)
108 (*xcp
)(dpy
, id
, atom
, XA_STRING
,
109 8, PropModeReplace
, (unsigned char *)prop
,
110 strlen((char *)prop
));
113 typedef Window(CWF
) (Display
* _display
, Window _parent
, int _x
,
114 int _y
, unsigned int _width
,
115 unsigned int _height
,
116 unsigned int _border_width
, int _depth
,
117 unsigned int _class
, Visual
* _visual
,
118 unsigned long _valuemask
,
119 XSetWindowAttributes
* _attributes
);
121 /* XCreateWindow intercept hack */
123 XCreateWindow(Display
*dpy
, Window parent
, int x
, int y
,
124 unsigned int width
, unsigned int height
,
125 unsigned int border_width
,
126 int depth
, unsigned int clss
, Visual
* visual
,
127 unsigned long valuemask
, XSetWindowAttributes
* attributes
)
129 static CWF
*func
= NULL
;
133 /* find the real Xlib and the real X function */
135 lib_xlib
= dlopen("libX11.so", RTLD_GLOBAL
| RTLD_LAZY
);
137 func
= (CWF
*) dlsym(lib_xlib
, "XCreateWindow");
141 if (parent
== DefaultRootWindow(dpy
))
142 parent
= MyRoot(dpy
);
144 id
= (*func
) (dpy
, parent
, x
, y
, width
, height
, border_width
,
145 depth
, clss
, visual
, valuemask
, attributes
);
148 if ((env
= getenv("_SWM_WS")) != NULL
)
149 set_property(dpy
, id
, "_SWM_WS", env
);
150 if ((env
= getenv("_SWM_PID")) != NULL
)
151 set_property(dpy
, id
, "_SWM_PID", env
);
152 if ((env
= getenv("_SWM_XTERM_FONTADJ")) != NULL
) {
153 unsetenv("_SWM_XTERM_FONTADJ");
160 typedef Window(CSWF
) (Display
* _display
, Window _parent
, int _x
,
161 int _y
, unsigned int _width
,
162 unsigned int _height
,
163 unsigned int _border_width
,
164 unsigned long _border
,
165 unsigned long _background
);
167 /* XCreateSimpleWindow intercept hack */
169 XCreateSimpleWindow(Display
*dpy
, Window parent
, int x
, int y
,
170 unsigned int width
, unsigned int height
,
171 unsigned int border_width
,
172 unsigned long border
, unsigned long background
)
174 static CSWF
*func
= NULL
;
178 /* find the real Xlib and the real X function */
180 lib_xlib
= dlopen("libX11.so", RTLD_GLOBAL
| RTLD_LAZY
);
182 func
= (CSWF
*) dlsym(lib_xlib
, "XCreateSimpleWindow");
184 if (parent
== DefaultRootWindow(dpy
))
185 parent
= MyRoot(dpy
);
187 id
= (*func
) (dpy
, parent
, x
, y
, width
, height
,
188 border_width
, border
, background
);
191 if ((env
= getenv("_SWM_WS")) != NULL
)
192 set_property(dpy
, id
, "_SWM_WS", env
);
193 if ((env
= getenv("_SWM_PID")) != NULL
)
194 set_property(dpy
, id
, "_SWM_PID", env
);
195 if ((env
= getenv("_SWM_XTERM_FONTADJ")) != NULL
) {
196 unsetenv("_SWM_XTERM_FONTADJ");
203 typedef int (RWF
) (Display
* _display
, Window _window
, Window _parent
,
206 /* XReparentWindow intercept hack */
208 XReparentWindow(Display
*dpy
, Window window
, Window parent
, int x
, int y
)
210 static RWF
*func
= NULL
;
212 /* find the real Xlib and the real X function */
214 lib_xlib
= dlopen("libX11.so", RTLD_GLOBAL
| RTLD_LAZY
);
216 func
= (RWF
*) dlsym(lib_xlib
, "XReparentWindow");
218 if (parent
== DefaultRootWindow(dpy
))
219 parent
= MyRoot(dpy
);
221 return (*func
) (dpy
, window
, parent
, x
, y
);
224 typedef void (ANEF
) (XtAppContext app_context
, XEvent
*event_return
);
228 * XtAppNextEvent Intercept Hack
229 * Normally xterm rejects "synthetic" (XSendEvent) events to prevent spoofing.
230 * We don't want to disable this completely, it's insecure. But hook here
231 * and allow these mostly harmless ones that we use to adjust fonts.
234 XtAppNextEvent(XtAppContext app_context
, XEvent
*event_return
)
236 static ANEF
*func
= NULL
;
237 static KeyCode kp_add
= 0, kp_subtract
= 0;
239 /* find the real Xlib and the real X function */
241 lib_xtlib
= dlopen("libXt.so", RTLD_GLOBAL
| RTLD_LAZY
);
243 func
= (ANEF
*) dlsym(lib_xtlib
, "XtAppNextEvent");
244 if (display
!= NULL
) {
245 kp_add
= XKeysymToKeycode(display
, XK_KP_Add
);
246 kp_subtract
= XKeysymToKeycode(display
, XK_KP_Subtract
);
250 (*func
) (app_context
, event_return
);
252 /* Return here if it's not an Xterm. */
256 /* Allow spoofing of font change keystrokes. */
257 if ((event_return
->type
== KeyPress
||
258 event_return
->type
== KeyRelease
) &&
259 event_return
->xkey
.state
== ShiftMask
&&
260 (event_return
->xkey
.keycode
== kp_add
||
261 event_return
->xkey
.keycode
== kp_subtract
))
262 event_return
->xkey
.send_event
= 0;