]>
code.delx.au - spectrwm/blob - lib/swm_hack.c
3 * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
4 * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 * Copyright (C) 2005-2007 Carsten Haitzler
20 * Copyright (C) 2006-2007 Kim Woelders
22 * Permission is hereby granted, free of charge, to any person obtaining a copy
23 * of this software and associated documentation files (the "Software"), to
24 * deal in the Software without restriction, including without limitation the
25 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
26 * sell copies of the Software, and to permit persons to whom the Software is
27 * furnished to do so, subject to the following conditions:
29 * The above copyright notice and this permission notice shall be included in
30 * all copies of the Software, its documentation and marketing & publicity
31 * materials, and acknowledgment shall be given in the documentation, materials
32 * and software packages that this Software was used.
34 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
38 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
39 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
42 * Basic hack mechanism (dlopen etc.) taken from e_hack.c in e17.
50 #include <X11/Xatom.h>
51 #include <X11/Intrinsic.h>
53 /* dlopened libs so we can find the symbols in the real one to call them */
54 static void *lib_xlib
= NULL
;
55 static void *lib_xtlib
= NULL
;
57 static Window root
= None
;
59 static Display
*dpy
= NULL
;
61 /* Find our root window */
70 root
= DefaultRootWindow(dpy
);
72 s
= getenv("ENL_WM_ROOT");
76 sscanf(s
, "%lx", &root
);
81 typedef Atom (XIA
) (Display
*display
, char *atom_name
, Bool
84 typedef int (XCP
) (Display
*display
, Window w
, Atom property
,
85 Atom type
, int format
, int mode
, unsigned char *data
,
88 #define SWM_PROPLEN (16)
90 set_property(Display
*dpy
, Window id
, char *name
, char *val
)
93 char prop
[SWM_PROPLEN
];
94 static XIA
*xia
= NULL
;
95 static XCP
*xcp
= NULL
;
97 /* find the real Xlib and the real X function */
99 lib_xlib
= dlopen("libX11.so", RTLD_GLOBAL
| RTLD_LAZY
);
101 xia
= (XIA
*) dlsym(lib_xlib
, "XInternAtom");
103 xcp
= (XCP
*) dlsym(lib_xlib
, "XChangeProperty");
105 /* Try to update the window's workspace property */
106 atom
= (*xia
)(dpy
, name
, False
);
108 if (snprintf(prop
, SWM_PROPLEN
, "%s", val
) < SWM_PROPLEN
)
109 (*xcp
)(dpy
, id
, atom
, XA_STRING
,
110 8, PropModeReplace
, (unsigned char *)prop
, SWM_PROPLEN
);
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
* display
, 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(display
))
142 parent
= MyRoot(display
);
144 id
= (*func
) (display
, parent
, x
, y
, width
, height
, border_width
,
145 depth
, clss
, visual
, valuemask
, attributes
);
148 if ((env
= getenv("_SWM_WS")) != NULL
)
149 set_property(display
, id
, "_SWM_WS", env
);
150 if ((env
= getenv("_SWM_PID")) != NULL
)
151 set_property(display
, 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
* display
, 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(display
))
185 parent
= MyRoot(display
);
187 id
= (*func
) (display
, parent
, x
, y
, width
, height
,
188 border_width
, border
, background
);
191 if ((env
= getenv("_SWM_WS")) != NULL
)
192 set_property(display
, id
, "_SWM_WS", env
);
193 if ((env
= getenv("_SWM_PID")) != NULL
)
194 set_property(display
, 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
* display
, 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(display
))
219 parent
= MyRoot(display
);
221 return (*func
) (display
, 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 int 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");
245 kp_add
= XKeysymToKeycode(dpy
, XK_KP_Add
);
246 kp_subtract
= XKeysymToKeycode(dpy
, 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;