| 1 |
/* -*- c-basic-offset: 8 -*- |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
|
| 4 |
Support functions for Extended Window Manager Hints, |
| 5 |
http://www.freedesktop.org/wiki/Standards_2fwm_2dspec |
| 6 |
|
| 7 |
Copyright (C) Peter Astrand <astrand@cendio.se> 2005 |
| 8 |
|
| 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 |
#include <X11/Xlib.h> |
| 25 |
#include <X11/Xatom.h> |
| 26 |
#include "rdesktop.h" |
| 27 |
|
| 28 |
#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */ |
| 29 |
#define _NET_WM_STATE_ADD 1 /* add/set property */ |
| 30 |
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */ |
| 31 |
|
| 32 |
extern Display *g_display; |
| 33 |
|
| 34 |
static Atom g_net_wm_state_maximized_vert_atom, g_net_wm_state_maximized_horz_atom, |
| 35 |
g_net_wm_state_hidden_atom, g_net_wm_name_atom, g_utf8_string_atom, |
| 36 |
g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom; |
| 37 |
|
| 38 |
Atom g_net_wm_state_atom, g_net_wm_desktop_atom; |
| 39 |
|
| 40 |
/* |
| 41 |
Get window property value (32 bit format) |
| 42 |
Returns zero on success, -1 on error |
| 43 |
*/ |
| 44 |
static int |
| 45 |
get_property_value(Window wnd, char *propname, long max_length, |
| 46 |
unsigned long *nitems_return, unsigned char **prop_return) |
| 47 |
{ |
| 48 |
int result; |
| 49 |
Atom property; |
| 50 |
Atom actual_type_return; |
| 51 |
int actual_format_return; |
| 52 |
unsigned long bytes_after_return; |
| 53 |
|
| 54 |
property = XInternAtom(g_display, propname, True); |
| 55 |
if (property == None) |
| 56 |
{ |
| 57 |
fprintf(stderr, "Atom %s does not exist\n", propname); |
| 58 |
return (-1); |
| 59 |
} |
| 60 |
|
| 61 |
result = XGetWindowProperty(g_display, wnd, property, 0, /* long_offset */ |
| 62 |
max_length, /* long_length */ |
| 63 |
False, /* delete */ |
| 64 |
AnyPropertyType, /* req_type */ |
| 65 |
&actual_type_return, |
| 66 |
&actual_format_return, |
| 67 |
nitems_return, &bytes_after_return, prop_return); |
| 68 |
|
| 69 |
if (result != Success) |
| 70 |
{ |
| 71 |
fprintf(stderr, "XGetWindowProperty failed\n"); |
| 72 |
return (-1); |
| 73 |
} |
| 74 |
|
| 75 |
if (actual_type_return == None || actual_format_return == 0) |
| 76 |
{ |
| 77 |
fprintf(stderr, "Window is missing property %s\n", propname); |
| 78 |
return (-1); |
| 79 |
} |
| 80 |
|
| 81 |
if (bytes_after_return) |
| 82 |
{ |
| 83 |
fprintf(stderr, "%s is too big for me\n", propname); |
| 84 |
return (-1); |
| 85 |
} |
| 86 |
|
| 87 |
if (actual_format_return != 32) |
| 88 |
{ |
| 89 |
fprintf(stderr, "%s has bad format\n", propname); |
| 90 |
return (-1); |
| 91 |
} |
| 92 |
|
| 93 |
return (0); |
| 94 |
} |
| 95 |
|
| 96 |
/* |
| 97 |
Get current desktop number |
| 98 |
Returns -1 on error |
| 99 |
*/ |
| 100 |
static int |
| 101 |
get_current_desktop(void) |
| 102 |
{ |
| 103 |
unsigned long nitems_return; |
| 104 |
unsigned char *prop_return; |
| 105 |
int current_desktop; |
| 106 |
|
| 107 |
if (get_property_value |
| 108 |
(DefaultRootWindow(g_display), "_NET_CURRENT_DESKTOP", 1, &nitems_return, |
| 109 |
&prop_return) < 0) |
| 110 |
return (-1); |
| 111 |
|
| 112 |
if (nitems_return != 1) |
| 113 |
{ |
| 114 |
fprintf(stderr, "_NET_CURRENT_DESKTOP has bad length\n"); |
| 115 |
return (-1); |
| 116 |
} |
| 117 |
|
| 118 |
current_desktop = *prop_return; |
| 119 |
XFree(prop_return); |
| 120 |
return current_desktop; |
| 121 |
} |
| 122 |
|
| 123 |
/* |
| 124 |
Get workarea geometry |
| 125 |
Returns zero on success, -1 on error |
| 126 |
*/ |
| 127 |
|
| 128 |
int |
| 129 |
get_current_workarea(uint32 * x, uint32 * y, uint32 * width, uint32 * height) |
| 130 |
{ |
| 131 |
int current_desktop; |
| 132 |
unsigned long nitems_return; |
| 133 |
unsigned char *prop_return; |
| 134 |
uint32 *return_words; |
| 135 |
const uint32 net_workarea_x_offset = 0; |
| 136 |
const uint32 net_workarea_y_offset = 1; |
| 137 |
const uint32 net_workarea_width_offset = 2; |
| 138 |
const uint32 net_workarea_height_offset = 3; |
| 139 |
const uint32 max_prop_length = 32 * 4; /* Max 32 desktops */ |
| 140 |
|
| 141 |
if (get_property_value |
| 142 |
(DefaultRootWindow(g_display), "_NET_WORKAREA", max_prop_length, &nitems_return, |
| 143 |
&prop_return) < 0) |
| 144 |
return (-1); |
| 145 |
|
| 146 |
if (nitems_return % 4) |
| 147 |
{ |
| 148 |
fprintf(stderr, "_NET_WORKAREA has odd length\n"); |
| 149 |
return (-1); |
| 150 |
} |
| 151 |
|
| 152 |
current_desktop = get_current_desktop(); |
| 153 |
|
| 154 |
if (current_desktop < 0) |
| 155 |
return -1; |
| 156 |
|
| 157 |
return_words = (uint32 *) prop_return; |
| 158 |
|
| 159 |
*x = return_words[current_desktop * 4 + net_workarea_x_offset]; |
| 160 |
*y = return_words[current_desktop * 4 + net_workarea_y_offset]; |
| 161 |
*width = return_words[current_desktop * 4 + net_workarea_width_offset]; |
| 162 |
*height = return_words[current_desktop * 4 + net_workarea_height_offset]; |
| 163 |
|
| 164 |
XFree(prop_return); |
| 165 |
|
| 166 |
return (0); |
| 167 |
|
| 168 |
} |
| 169 |
|
| 170 |
|
| 171 |
|
| 172 |
void |
| 173 |
ewmh_init() |
| 174 |
{ |
| 175 |
/* FIXME: Use XInternAtoms */ |
| 176 |
g_net_wm_state_maximized_vert_atom = |
| 177 |
XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_VERT", False); |
| 178 |
g_net_wm_state_maximized_horz_atom = |
| 179 |
XInternAtom(g_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False); |
| 180 |
g_net_wm_state_hidden_atom = XInternAtom(g_display, "_NET_WM_STATE_HIDDEN", False); |
| 181 |
g_net_wm_state_skip_taskbar_atom = |
| 182 |
XInternAtom(g_display, "_NET_WM_STATE_SKIP_TASKBAR", False); |
| 183 |
g_net_wm_state_skip_pager_atom = XInternAtom(g_display, "_NET_WM_STATE_SKIP_PAGER", False); |
| 184 |
g_net_wm_state_atom = XInternAtom(g_display, "_NET_WM_STATE", False); |
| 185 |
g_net_wm_desktop_atom = XInternAtom(g_display, "_NET_WM_DESKTOP", False); |
| 186 |
g_net_wm_name_atom = XInternAtom(g_display, "_NET_WM_NAME", False); |
| 187 |
g_utf8_string_atom = XInternAtom(g_display, "UTF8_STRING", False); |
| 188 |
} |
| 189 |
|
| 190 |
|
| 191 |
/* |
| 192 |
Get the window state: normal/minimized/maximized. |
| 193 |
*/ |
| 194 |
#ifndef MAKE_PROTO |
| 195 |
int |
| 196 |
ewmh_get_window_state(Window w) |
| 197 |
{ |
| 198 |
unsigned long nitems_return; |
| 199 |
unsigned char *prop_return; |
| 200 |
uint32 *return_words; |
| 201 |
unsigned long item; |
| 202 |
BOOL maximized_vert, maximized_horz, hidden; |
| 203 |
|
| 204 |
maximized_vert = maximized_horz = hidden = False; |
| 205 |
|
| 206 |
if (get_property_value(w, "_NET_WM_STATE", 64, &nitems_return, &prop_return) < 0) |
| 207 |
return SEAMLESSRDP_NORMAL; |
| 208 |
|
| 209 |
return_words = (uint32 *) prop_return; |
| 210 |
|
| 211 |
for (item = 0; item < nitems_return; item++) |
| 212 |
{ |
| 213 |
if (return_words[item] == g_net_wm_state_maximized_vert_atom) |
| 214 |
maximized_vert = True; |
| 215 |
if (return_words[item] == g_net_wm_state_maximized_horz_atom) |
| 216 |
maximized_horz = True; |
| 217 |
if (return_words[item] == g_net_wm_state_hidden_atom) |
| 218 |
hidden = True; |
| 219 |
} |
| 220 |
|
| 221 |
XFree(prop_return); |
| 222 |
|
| 223 |
if (maximized_vert && maximized_horz) |
| 224 |
return SEAMLESSRDP_MAXIMIZED; |
| 225 |
else if (hidden) |
| 226 |
return SEAMLESSRDP_MINIMIZED; |
| 227 |
else |
| 228 |
return SEAMLESSRDP_NORMAL; |
| 229 |
} |
| 230 |
|
| 231 |
static int |
| 232 |
ewmh_add_state(Window wnd, Atom atom1, Atom atom2) |
| 233 |
{ |
| 234 |
Status status; |
| 235 |
XEvent xevent; |
| 236 |
|
| 237 |
xevent.type = ClientMessage; |
| 238 |
xevent.xclient.window = wnd; |
| 239 |
xevent.xclient.message_type = g_net_wm_state_atom; |
| 240 |
xevent.xclient.format = 32; |
| 241 |
xevent.xclient.data.l[0] = _NET_WM_STATE_ADD; |
| 242 |
xevent.xclient.data.l[1] = atom1; |
| 243 |
xevent.xclient.data.l[2] = atom2; |
| 244 |
xevent.xclient.data.l[3] = 0; |
| 245 |
xevent.xclient.data.l[4] = 0; |
| 246 |
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
| 247 |
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
| 248 |
if (!status) |
| 249 |
return -1; |
| 250 |
|
| 251 |
return 0; |
| 252 |
} |
| 253 |
|
| 254 |
static int |
| 255 |
ewmh_remove_state(Window wnd, Atom atom1, Atom atom2) |
| 256 |
{ |
| 257 |
Status status; |
| 258 |
XEvent xevent; |
| 259 |
|
| 260 |
xevent.type = ClientMessage; |
| 261 |
xevent.xclient.window = wnd; |
| 262 |
xevent.xclient.message_type = g_net_wm_state_atom; |
| 263 |
xevent.xclient.format = 32; |
| 264 |
xevent.xclient.data.l[0] = _NET_WM_STATE_REMOVE; |
| 265 |
xevent.xclient.data.l[1] = atom1; |
| 266 |
xevent.xclient.data.l[2] = atom2; |
| 267 |
xevent.xclient.data.l[3] = 0; |
| 268 |
xevent.xclient.data.l[4] = 0; |
| 269 |
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
| 270 |
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
| 271 |
if (!status) |
| 272 |
return -1; |
| 273 |
|
| 274 |
return 0; |
| 275 |
} |
| 276 |
|
| 277 |
/* |
| 278 |
Set the window state: normal/minimized/maximized. |
| 279 |
Returns -1 on failure. |
| 280 |
*/ |
| 281 |
int |
| 282 |
ewmh_change_state(Window wnd, int state) |
| 283 |
{ |
| 284 |
/* |
| 285 |
* Deal with the max atoms |
| 286 |
*/ |
| 287 |
if (state == SEAMLESSRDP_MAXIMIZED) |
| 288 |
{ |
| 289 |
if (ewmh_add_state |
| 290 |
(wnd, g_net_wm_state_maximized_vert_atom, |
| 291 |
g_net_wm_state_maximized_horz_atom) < 0) |
| 292 |
return -1; |
| 293 |
} |
| 294 |
else |
| 295 |
{ |
| 296 |
if (ewmh_remove_state |
| 297 |
(wnd, g_net_wm_state_maximized_vert_atom, |
| 298 |
g_net_wm_state_maximized_horz_atom) < 0) |
| 299 |
return -1; |
| 300 |
} |
| 301 |
|
| 302 |
return 0; |
| 303 |
} |
| 304 |
|
| 305 |
|
| 306 |
int |
| 307 |
ewmh_get_window_desktop(Window wnd) |
| 308 |
{ |
| 309 |
unsigned long nitems_return; |
| 310 |
unsigned char *prop_return; |
| 311 |
int desktop; |
| 312 |
|
| 313 |
if (get_property_value(wnd, "_NET_WM_DESKTOP", 1, &nitems_return, &prop_return) < 0) |
| 314 |
return (-1); |
| 315 |
|
| 316 |
if (nitems_return != 1) |
| 317 |
{ |
| 318 |
fprintf(stderr, "_NET_WM_DESKTOP has bad length\n"); |
| 319 |
return (-1); |
| 320 |
} |
| 321 |
|
| 322 |
desktop = *prop_return; |
| 323 |
XFree(prop_return); |
| 324 |
return desktop; |
| 325 |
} |
| 326 |
|
| 327 |
|
| 328 |
int |
| 329 |
ewmh_move_to_desktop(Window wnd, unsigned int desktop) |
| 330 |
{ |
| 331 |
Status status; |
| 332 |
XEvent xevent; |
| 333 |
|
| 334 |
xevent.type = ClientMessage; |
| 335 |
xevent.xclient.window = wnd; |
| 336 |
xevent.xclient.message_type = g_net_wm_desktop_atom; |
| 337 |
xevent.xclient.format = 32; |
| 338 |
xevent.xclient.data.l[0] = desktop; |
| 339 |
xevent.xclient.data.l[1] = 0; |
| 340 |
xevent.xclient.data.l[2] = 0; |
| 341 |
xevent.xclient.data.l[3] = 0; |
| 342 |
xevent.xclient.data.l[4] = 0; |
| 343 |
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
| 344 |
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
| 345 |
if (!status) |
| 346 |
return -1; |
| 347 |
|
| 348 |
return 0; |
| 349 |
} |
| 350 |
|
| 351 |
void |
| 352 |
ewmh_set_wm_name(Window wnd, const char *title) |
| 353 |
{ |
| 354 |
int len; |
| 355 |
|
| 356 |
len = strlen(title); |
| 357 |
XChangeProperty(g_display, wnd, g_net_wm_name_atom, g_utf8_string_atom, |
| 358 |
8, PropModeReplace, (unsigned char *) title, len); |
| 359 |
} |
| 360 |
|
| 361 |
|
| 362 |
int |
| 363 |
ewmh_set_window_popup(Window wnd) |
| 364 |
{ |
| 365 |
if (ewmh_add_state(wnd, g_net_wm_state_skip_taskbar_atom, g_net_wm_state_skip_pager_atom) < |
| 366 |
0) |
| 367 |
return -1; |
| 368 |
return 0; |
| 369 |
} |
| 370 |
|
| 371 |
#endif /* MAKE_PROTO */ |
| 372 |
|
| 373 |
|
| 374 |
#if 0 |
| 375 |
|
| 376 |
/* FIXME: _NET_MOVERESIZE_WINDOW is for pagers, not for |
| 377 |
applications. We should implement _NET_WM_MOVERESIZE instead */ |
| 378 |
|
| 379 |
int |
| 380 |
ewmh_net_moveresize_window(Window wnd, int x, int y, int width, int height) |
| 381 |
{ |
| 382 |
Status status; |
| 383 |
XEvent xevent; |
| 384 |
Atom moveresize; |
| 385 |
|
| 386 |
moveresize = XInternAtom(g_display, "_NET_MOVERESIZE_WINDOW", False); |
| 387 |
if (!moveresize) |
| 388 |
{ |
| 389 |
return -1; |
| 390 |
} |
| 391 |
|
| 392 |
xevent.type = ClientMessage; |
| 393 |
xevent.xclient.window = wnd; |
| 394 |
xevent.xclient.message_type = moveresize; |
| 395 |
xevent.xclient.format = 32; |
| 396 |
xevent.xclient.data.l[0] = StaticGravity | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11); |
| 397 |
xevent.xclient.data.l[1] = x; |
| 398 |
xevent.xclient.data.l[2] = y; |
| 399 |
xevent.xclient.data.l[3] = width; |
| 400 |
xevent.xclient.data.l[4] = height; |
| 401 |
|
| 402 |
status = XSendEvent(g_display, DefaultRootWindow(g_display), False, |
| 403 |
SubstructureNotifyMask | SubstructureRedirectMask, &xevent); |
| 404 |
if (!status) |
| 405 |
return -1; |
| 406 |
return 0; |
| 407 |
} |
| 408 |
|
| 409 |
#endif |
Parent Directory
| 
Revision Log