1 |
astrand |
963 |
/* -*- c-basic-offset: 8 -*- |
2 |
astrand |
263 |
rdesktop: A Remote Desktop Protocol client. |
3 |
|
|
|
4 |
|
|
Support functions for Extended Window Manager Hints, |
5 |
astrand |
1013 |
http://www.freedesktop.org/wiki/Standards_2fwm_2dspec |
6 |
astrand |
263 |
|
7 |
astrand |
1013 |
Copyright (C) Peter Astrand <astrand@cendio.se> 2005 |
8 |
astrand |
263 |
|
9 |
|
|
This program is free software; you can redistribute it and/or modify |
10 |
|
|
it under the terms of the GNU General Public License as published by |
11 |
|
|
the Free Software Foundation; either version 2 of the License, or |
12 |
|
|
(at your option) any later version. |
13 |
|
|
|
14 |
|
|
This program is distributed in the hope that it will be useful, |
15 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 |
|
|
GNU General Public License for more details. |
18 |
|
|
|
19 |
|
|
You should have received a copy of the GNU General Public License |
20 |
|
|
along with this program; if not, write to the Free Software |
21 |
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 |
|
|
*/ |
23 |
|
|
|
24 |
astrand |
266 |
#include <X11/Xlib.h> |
25 |
astrand |
1199 |
#include <X11/Xatom.h> |
26 |
|
|
#include <X11/Xutil.h> |
27 |
astrand |
263 |
#include "rdesktop.h" |
28 |
|
|
|
29 |
astrand |
1199 |
#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */ |
30 |
|
|
#define _NET_WM_STATE_ADD 1 /* add/set property */ |
31 |
|
|
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */ |
32 |
|
|
|
33 |
jsorg71 |
450 |
extern Display *g_display; |
34 |
astrand |
263 |
|
35 |
astrand |
1199 |
static Atom g_net_wm_state_maximized_vert_atom, g_net_wm_state_maximized_horz_atom, |
36 |
|
|
g_net_wm_state_hidden_atom, g_net_wm_name_atom, g_utf8_string_atom, |
37 |
|
|
g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom, g_net_wm_state_modal_atom; |
38 |
|
|
|
39 |
|
|
Atom g_net_wm_state_atom, g_net_wm_desktop_atom; |
40 |
|
|
|
41 |
astrand |
263 |
/* |
42 |
|
|
Get window property value (32 bit format) |
43 |
|
|
Returns zero on success, -1 on error |
44 |
|
|
*/ |
45 |
|
|
static int |
46 |
astrand |
1199 |
get_property_value(Window wnd, char *propname, long max_length, |
47 |
|
|
unsigned long *nitems_return, unsigned char **prop_return, int nowarn) |
48 |
astrand |
263 |
{ |
49 |
|
|
int result; |
50 |
|
|
Atom property; |
51 |
|
|
Atom actual_type_return; |
52 |
|
|
int actual_format_return; |
53 |
|
|
unsigned long bytes_after_return; |
54 |
|
|
|
55 |
jsorg71 |
450 |
property = XInternAtom(g_display, propname, True); |
56 |
astrand |
263 |
if (property == None) |
57 |
|
|
{ |
58 |
|
|
fprintf(stderr, "Atom %s does not exist\n", propname); |
59 |
|
|
return (-1); |
60 |
|
|
} |
61 |
|
|
|
62 |
astrand |
1199 |
result = XGetWindowProperty(g_display, wnd, property, 0, /* long_offset */ |
63 |
astrand |
263 |
max_length, /* long_length */ |
64 |
|
|
False, /* delete */ |
65 |
|
|
AnyPropertyType, /* req_type */ |
66 |
|
|
&actual_type_return, |
67 |
|
|
&actual_format_return, |
68 |
|
|
nitems_return, &bytes_after_return, prop_return); |
69 |
|
|
|
70 |
|
|
if (result != Success) |
71 |
|
|
{ |
72 |
|
|
fprintf(stderr, "XGetWindowProperty failed\n"); |
73 |
|
|
return (-1); |
74 |
|
|
} |
75 |
|
|
|
76 |
|
|
if (actual_type_return == None || actual_format_return == 0) |
77 |
|
|
{ |
78 |
astrand |
1199 |
if (!nowarn) |
79 |
|
|
fprintf(stderr, "Window is missing property %s\n", propname); |
80 |
astrand |
263 |
return (-1); |
81 |
|
|
} |
82 |
|
|
|
83 |
|
|
if (bytes_after_return) |
84 |
|
|
{ |
85 |
|
|
fprintf(stderr, "%s is too big for me\n", propname); |
86 |
|
|
return (-1); |
87 |
|
|
} |
88 |
|
|
|
89 |
|
|
if (actual_format_return != 32) |
90 |
|
|
{ |
91 |
|
|
fprintf(stderr, "%s has bad format\n", propname); |
92 |
|
|
return (-1); |
93 |
|
|
} |
94 |
|
|
|
95 |
|
|
return (0); |
96 |
|
|
} |
97 |
|
|
|
98 |
|
|
/* |
99 |
|
|
Get current desktop number |
100 |
|
|
Returns -1 on error |
101 |
|
|
*/ |
102 |
|
|
static int |
103 |
matthewc |
300 |
get_current_desktop(void) |
104 |
astrand |
263 |
{ |
105 |
|
|
unsigned long nitems_return; |
106 |
astrand |
464 |
unsigned char *prop_return; |
107 |
astrand |
263 |
int current_desktop; |
108 |
|
|
|
109 |
astrand |
1199 |
if (get_property_value |
110 |
|
|
(DefaultRootWindow(g_display), "_NET_CURRENT_DESKTOP", 1, &nitems_return, |
111 |
|
|
&prop_return, 0) < 0) |
112 |
astrand |
263 |
return (-1); |
113 |
|
|
|
114 |
|
|
if (nitems_return != 1) |
115 |
|
|
{ |
116 |
|
|
fprintf(stderr, "_NET_CURRENT_DESKTOP has bad length\n"); |
117 |
|
|
return (-1); |
118 |
|
|
} |
119 |
|
|
|
120 |
|
|
current_desktop = *prop_return; |
121 |
|
|
XFree(prop_return); |
122 |
|
|
return current_desktop; |
123 |
|
|
} |
124 |
|
|
|
125 |
|
|
/* |
126 |
|
|
Get workarea geometry |
127 |
|
|
Returns zero on success, -1 on error |
128 |
|
|
*/ |
129 |
|
|
|
130 |
|
|
int |
131 |
|
|
get_current_workarea(uint32 * x, uint32 * y, uint32 * width, uint32 * height) |
132 |
|
|
{ |
133 |
|
|
int current_desktop; |
134 |
|
|
unsigned long nitems_return; |
135 |
astrand |
464 |
unsigned char *prop_return; |
136 |
|
|
uint32 *return_words; |
137 |
astrand |
263 |
const uint32 net_workarea_x_offset = 0; |
138 |
|
|
const uint32 net_workarea_y_offset = 1; |
139 |
|
|
const uint32 net_workarea_width_offset = 2; |
140 |
|
|
const uint32 net_workarea_height_offset = 3; |
141 |
|
|
const uint32 max_prop_length = 32 * 4; /* Max 32 desktops */ |
142 |
|
|
|
143 |
astrand |
1199 |
if (get_property_value |
144 |
|
|
(DefaultRootWindow(g_display), "_NET_WORKAREA", max_prop_length, &nitems_return, |
145 |
|
|
&prop_return, 0) < 0) |
146 |
astrand |
263 |
return (-1); |
147 |
|
|
|
148 |
|
|
if (nitems_return % 4) |
149 |
|
|
{ |
150 |
|
|
fprintf(stderr, "_NET_WORKAREA has odd length\n"); |
151 |
|
|
return (-1); |
152 |
|
|
} |
153 |
|
|
|
154 |
|
|
current_desktop = get_current_desktop(); |
155 |
|
|
|
156 |
|
|
if (current_desktop < 0) |
157 |
|
|
return -1; |
158 |
|
|
|
159 |
astrand |
468 |
return_words = (uint32 *) prop_return; |
160 |
astrand |
263 |
|
161 |
astrand |
464 |
*x = return_words[current_desktop * 4 + net_workarea_x_offset]; |
162 |
|
|
*y = return_words[current_desktop * 4 + net_workarea_y_offset]; |
163 |
|
|
*width = return_words[current_desktop * 4 + net_workarea_width_offset]; |
164 |
|
|
*height = return_words[current_desktop * 4 + net_workarea_height_offset]; |
165 |
|
|
|
166 |
astrand |
263 |
XFree(prop_return); |
167 |
|
|
|
168 |
|
|
return (0); |
169 |
|
|
|
170 |
|
|
} |
171 |
astrand |
1013 |
|
172 |
|
|
|
173 |
astrand |
1199 |
|
174 |
|
|
void |
175 |
|
|
ewmh_init() |
176 |
|
|
{ |
177 |
|
|
/* FIXME: Use XInternAtoms */ |
178 |
|
|
g_net_wm_state_maximized_vert_atom = |
179 |
|
|
XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", False); |
180 |
|
|
g_net_wm_state_maximized_horz_atom = |
181 |
|
|
XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False); |
182 |
|
|
g_net_wm_state_hidden_atom = XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", False); |
183 |
|
|
g_net_wm_state_skip_taskbar_atom = |
184 |
|
|
XInternAtom(g_display, "_NET_WM_STATE_SKIP_TASKBAR", False); |
185 |
|
|
g_net_wm_state_skip_pager_atom = XInternAtom(g_display, "_NET_WM_STATE_SKIP_PAGER", False); |
186 |
|
|
g_net_wm_state_modal_atom = XInternAtom(g_display, "_NET_WM_STATE_MODAL", False); |
187 |
|
|
g_net_wm_state_atom = XInternAtom(g_display, "_NET_WM_STATE", False); |
188 |
|
|
g_net_wm_desktop_atom = XInternAtom(g_display, "_NET_WM_DESKTOP", False); |
189 |
|
|
g_net_wm_name_atom = XInternAtom(g_display, "_NET_WM_NAME", False); |
190 |
|
|
g_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False); |
191 |
|
|
} |
192 |
|
|
|
193 |
|
|
|
194 |
|
|
/* |
195 |
|
|
Get the window state: normal/minimized/maximized. |
196 |
|
|
*/ |
197 |
|
|
#ifndef MAKE_PROTO |
198 |
|
|
int |
199 |
|
|
ewmh_get_window_state(Window w) |
200 |
|
|
{ |
201 |
|
|
unsigned long nitems_return; |
202 |
|
|
unsigned char *prop_return; |
203 |
|
|
uint32 *return_words; |
204 |
|
|
unsigned long item; |
205 |
|
|
BOOL maximized_vert, maximized_horz, hidden; |
206 |
|
|
|
207 |
|
|
maximized_vert = maximized_horz = hidden = False; |
208 |
|
|
|
209 |
|
|
if (get_property_value(w, "_NET_WM_STATE", 64, &nitems_return, &prop_return, 0) < 0) |
210 |
|
|
return SEAMLESSRDP_NORMAL; |
211 |
|
|
|
212 |
|
|
return_words = (uint32 *) prop_return; |
213 |
|
|
|
214 |
|
|
for (item = 0; item < nitems_return; item++) |
215 |
|
|
{ |
216 |
|
|
if (return_words[item] == g_net_wm_state_maximized_vert_atom) |
217 |
|
|
maximized_vert = True; |
218 |
|
|
if (return_words[item] == g_net_wm_state_maximized_horz_atom) |
219 |
|
|
maximized_horz = True; |
220 |
|
|
if (return_words[item] == g_net_wm_state_hidden_atom) |
221 |
|
|
hidden = True; |
222 |
|
|
} |
223 |
|
|
|
224 |
|
|
XFree(prop_return); |
225 |
|
|
|
226 |
|
|
if (maximized_vert && maximized_horz) |
227 |
|
|
return SEAMLESSRDP_MAXIMIZED; |
228 |
|
|
else if (hidden) |
229 |
|
|
return SEAMLESSRDP_MINIMIZED; |
230 |
|
|
else |
231 |
|
|
return SEAMLESSRDP_NORMAL; |
232 |
|
|
} |
233 |
|
|
|
234 |
|
|
static int |
235 |
|
|
ewmh_modify_state(Window wnd, int add, Atom atom1, Atom atom2) |
236 |
|
|
{ |
237 |
|
|
Status status; |
238 |
|
|
XEvent xevent; |
239 |
|
|
|
240 |
|
|
int result; |
241 |
|
|
unsigned long nitems; |
242 |
|
|
unsigned char *props; |
243 |
astrand |
1225 |
uint32 state = WithdrawnState; |
244 |
astrand |
1199 |
|
245 |
|
|
/* The spec states that the window manager must respect any |
246 |
|
|
_NET_WM_STATE attributes on a withdrawn window. In order words, we |
247 |
|
|
modify the attributes directly for withdrawn windows and ask the WM |
248 |
|
|
to do it for active windows. */ |
249 |
|
|
result = get_property_value(wnd, "WM_STATE", 64, &nitems, &props, 1); |
250 |
|
|
if ((result >= 0) && nitems) |
251 |
|
|
{ |
252 |
|
|
state = *(uint32 *) props; |
253 |
|
|
XFree(props); |
254 |
|
|
} |
255 |
|
|
|
256 |
astrand |
1225 |
if (state == WithdrawnState) |
257 |
astrand |
1199 |
{ |
258 |
|
|
if (add) |
259 |
|
|
{ |
260 |
|
|
Atom atoms[2]; |
261 |
|
|
|
262 |
|
|
atoms[0] = atom1; |
263 |
|
|
nitems = 1; |
264 |
|
|
if (atom2) |
265 |
|
|
{ |
266 |
|
|
atoms[1] = atom2; |
267 |
|
|
nitems = 2; |
268 |
|
|
} |
269 |
|
|
|
270 |
|
|
XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM, |
271 |
|
|
32, PropModeAppend, (unsigned char *) atoms, nitems); |
272 |
|
|
} |
273 |
|
|
else |
274 |
|
|
{ |
275 |
|
|
Atom *atoms; |
276 |
|
|
int i; |
277 |
|
|
|
278 |
|
|
if (get_property_value(wnd, "_NET_WM_STATE", 64, &nitems, &props, 1) < 0) |
279 |
|
|
return 0; |
280 |
|
|
|
281 |
|
|
atoms = (Atom *) props; |
282 |
|
|
|
283 |
|
|
for (i = 0; i < nitems; i++) |
284 |
|
|
{ |
285 |
|
|
if ((atoms[i] == atom1) || (atom2 && (atoms[i] == atom2))) |
286 |
|
|
{ |
287 |
|
|
if (i != (nitems - 1)) |
288 |
|
|
memmove(&atoms[i], &atoms[i + 1], |
289 |
|
|
sizeof(Atom) * (nitems - i - 1)); |
290 |
|
|
nitems--; |
291 |
|
|
i--; |
292 |
|
|
} |
293 |
|
|
} |
294 |
|
|
|
295 |
|
|
XChangeProperty(g_display, wnd, g_net_wm_state_atom, XA_ATOM, |
296 |
|
|
32, PropModeReplace, (unsigned char *) atoms, nitems); |
297 |
|
|
|
298 |
|
|
XFree(props); |
299 |
|
|
} |
300 |
|
|
|
301 |
|
|
return 0; |
302 |
|
|
} |
303 |
|
|
|
304 |
|
|
xevent.type = ClientMessage; |
305 |
|
|
xevent.xclient.window = wnd; |
306 |
|
|
xevent.xclient.message_type = g_net_wm_state_atom; |
307 |
|
|
xevent.xclient.format = 32; |
308 |
|
|
if (add) |
309 |
|
|
xevent.xclient.data.l[0] = _NET_WM_STATE_ADD; |
310 |
|
|
else |
311 |
|
|
xevent.xclient.data.l[0] = _NET_WM_STATE_REMOVE; |
312 |
|
|
xevent.xclient.data.l[1] = atom1; |
313 |
|
|
xevent.xclient.data.l[2] = atom2; |
314 |
|
|
xevent.xclient.data.l[3] = 0; |
315 |
|
|
xevent.xclient.data.l[4] = 0; |
316 |
|
|
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
317 |
|
|
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
318 |
|
|
if (!status) |
319 |
|
|
return -1; |
320 |
|
|
|
321 |
|
|
return 0; |
322 |
|
|
} |
323 |
|
|
|
324 |
|
|
/* |
325 |
|
|
Set the window state: normal/minimized/maximized. |
326 |
|
|
Returns -1 on failure. |
327 |
|
|
*/ |
328 |
|
|
int |
329 |
|
|
ewmh_change_state(Window wnd, int state) |
330 |
|
|
{ |
331 |
|
|
/* |
332 |
|
|
* Deal with the max atoms |
333 |
|
|
*/ |
334 |
|
|
if (state == SEAMLESSRDP_MAXIMIZED) |
335 |
|
|
{ |
336 |
|
|
if (ewmh_modify_state |
337 |
|
|
(wnd, 1, g_net_wm_state_maximized_vert_atom, |
338 |
|
|
g_net_wm_state_maximized_horz_atom) < 0) |
339 |
|
|
return -1; |
340 |
|
|
} |
341 |
|
|
else |
342 |
|
|
{ |
343 |
|
|
if (ewmh_modify_state |
344 |
|
|
(wnd, 0, g_net_wm_state_maximized_vert_atom, |
345 |
|
|
g_net_wm_state_maximized_horz_atom) < 0) |
346 |
|
|
return -1; |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
return 0; |
350 |
|
|
} |
351 |
|
|
|
352 |
|
|
|
353 |
|
|
int |
354 |
|
|
ewmh_get_window_desktop(Window wnd) |
355 |
|
|
{ |
356 |
|
|
unsigned long nitems_return; |
357 |
|
|
unsigned char *prop_return; |
358 |
|
|
int desktop; |
359 |
|
|
|
360 |
|
|
if (get_property_value(wnd, "_NET_WM_DESKTOP", 1, &nitems_return, &prop_return, 0) < 0) |
361 |
|
|
return (-1); |
362 |
|
|
|
363 |
|
|
if (nitems_return != 1) |
364 |
|
|
{ |
365 |
|
|
fprintf(stderr, "_NET_WM_DESKTOP has bad length\n"); |
366 |
|
|
return (-1); |
367 |
|
|
} |
368 |
|
|
|
369 |
|
|
desktop = *prop_return; |
370 |
|
|
XFree(prop_return); |
371 |
|
|
return desktop; |
372 |
|
|
} |
373 |
|
|
|
374 |
|
|
|
375 |
|
|
int |
376 |
|
|
ewmh_move_to_desktop(Window wnd, unsigned int desktop) |
377 |
|
|
{ |
378 |
|
|
Status status; |
379 |
|
|
XEvent xevent; |
380 |
|
|
|
381 |
|
|
xevent.type = ClientMessage; |
382 |
|
|
xevent.xclient.window = wnd; |
383 |
|
|
xevent.xclient.message_type = g_net_wm_desktop_atom; |
384 |
|
|
xevent.xclient.format = 32; |
385 |
|
|
xevent.xclient.data.l[0] = desktop; |
386 |
|
|
xevent.xclient.data.l[1] = 0; |
387 |
|
|
xevent.xclient.data.l[2] = 0; |
388 |
|
|
xevent.xclient.data.l[3] = 0; |
389 |
|
|
xevent.xclient.data.l[4] = 0; |
390 |
|
|
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
391 |
|
|
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
392 |
|
|
if (!status) |
393 |
|
|
return -1; |
394 |
|
|
|
395 |
|
|
return 0; |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
void |
399 |
|
|
ewmh_set_wm_name(Window wnd, const char *title) |
400 |
|
|
{ |
401 |
|
|
int len; |
402 |
|
|
|
403 |
|
|
len = strlen(title); |
404 |
|
|
XChangeProperty(g_display, wnd, g_net_wm_name_atom, g_utf8_string_atom, |
405 |
|
|
8, PropModeReplace, (unsigned char *) title, len); |
406 |
|
|
} |
407 |
|
|
|
408 |
|
|
|
409 |
|
|
int |
410 |
|
|
ewmh_set_window_popup(Window wnd) |
411 |
|
|
{ |
412 |
|
|
if (ewmh_modify_state |
413 |
|
|
(wnd, 1, g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom) < 0) |
414 |
|
|
return -1; |
415 |
|
|
return 0; |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
int |
419 |
|
|
ewmh_set_window_modal(Window wnd) |
420 |
|
|
{ |
421 |
|
|
if (ewmh_modify_state(wnd, 1, g_net_wm_state_modal_atom, 0) < 0) |
422 |
|
|
return -1; |
423 |
|
|
return 0; |
424 |
|
|
} |
425 |
|
|
|
426 |
|
|
#endif /* MAKE_PROTO */ |
427 |
|
|
|
428 |
|
|
|
429 |
astrand |
1013 |
#if 0 |
430 |
|
|
|
431 |
|
|
/* FIXME: _NET_MOVERESIZE_WINDOW is for pagers, not for |
432 |
|
|
applications. We should implement _NET_WM_MOVERESIZE instead */ |
433 |
|
|
|
434 |
|
|
int |
435 |
|
|
ewmh_net_moveresize_window(Window wnd, int x, int y, int width, int height) |
436 |
|
|
{ |
437 |
|
|
Status status; |
438 |
|
|
XEvent xevent; |
439 |
|
|
Atom moveresize; |
440 |
|
|
|
441 |
|
|
moveresize = XInternAtom(g_display, "_NET_MOVERESIZE_WINDOW", False); |
442 |
|
|
if (!moveresize) |
443 |
|
|
{ |
444 |
|
|
return -1; |
445 |
|
|
} |
446 |
|
|
|
447 |
|
|
xevent.type = ClientMessage; |
448 |
|
|
xevent.xclient.window = wnd; |
449 |
|
|
xevent.xclient.message_type = moveresize; |
450 |
|
|
xevent.xclient.format = 32; |
451 |
|
|
xevent.xclient.data.l[0] = StaticGravity | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11); |
452 |
|
|
xevent.xclient.data.l[1] = x; |
453 |
|
|
xevent.xclient.data.l[2] = y; |
454 |
|
|
xevent.xclient.data.l[3] = width; |
455 |
|
|
xevent.xclient.data.l[4] = height; |
456 |
|
|
|
457 |
|
|
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
458 |
|
|
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
459 |
|
|
if (!status) |
460 |
|
|
return -1; |
461 |
|
|
return 0; |
462 |
|
|
} |
463 |
|
|
|
464 |
|
|
#endif |