J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #ifdef HEADLESS |
| 27 | #error This file should not be included in headless library |
| 28 | #endif |
| 29 | |
| 30 | /* |
| 31 | * Some SCIENCE stuff happens, and it is CONFUSING |
| 32 | */ |
| 33 | |
| 34 | #include "awt_p.h" |
| 35 | |
| 36 | #include <X11/Xproto.h> |
| 37 | #include <X11/Xlib.h> |
| 38 | #include <X11/Xatom.h> |
| 39 | #include <Xm/MwmUtil.h> |
| 40 | |
| 41 | /* JNI headers */ |
| 42 | #include "java_awt_Frame.h" /* for frame state constants */ |
| 43 | |
| 44 | #include "awt_wm.h" |
| 45 | #include "awt_util.h" /* for X11 error handling macros */ |
| 46 | |
| 47 | /* |
| 48 | * NB: 64 bit awareness. |
| 49 | * |
| 50 | * Since this code reads/writes window properties heavily, one thing |
| 51 | * should be noted well. Xlib uses C type 'long' for properties of |
| 52 | * format 32. Fortunately, typedef for Atom is 'long' as well, so |
| 53 | * passing property data as or casting returned property data to |
| 54 | * arrays of atoms is safe. |
| 55 | */ |
| 56 | |
| 57 | |
| 58 | /* |
| 59 | * Atoms used to communicate with window manager(s). |
| 60 | * Naming convention: |
| 61 | * o for atom "FOO" the variable is "XA_FOO" |
| 62 | * o for atom "_BAR" the variable is "_XA_BAR" |
| 63 | * Don't forget to add initialization to awt_wm_initAtoms below. |
| 64 | */ |
| 65 | |
| 66 | /* |
| 67 | * Before WM rototill JDK used to check for running WM by just testing |
| 68 | * if certain atom is interned or not. We'd better not confuse older |
| 69 | * JDK by interning these atoms. Use awt_wm_atomInterned() to intern |
| 70 | * them lazily. |
| 71 | * |
| 72 | * ENLIGHTENMENT_COMMS |
| 73 | * _ICEWM_WINOPTHINT |
| 74 | * _SAWMILL_TIMESTAMP |
| 75 | * _DT_SM_WINDOW_INFO |
| 76 | * _MOTIF_WM_INFO |
| 77 | * _SUN_WM_PROTOCOLS |
| 78 | */ |
| 79 | |
| 80 | /* Good old ICCCM */ |
| 81 | static Atom XA_WM_STATE; |
| 82 | |
| 83 | /* New "netwm" spec from www.freedesktop.org */ |
| 84 | static Atom XA_UTF8_STRING; /* like STRING but encoding is UTF-8 */ |
| 85 | static Atom _XA_NET_SUPPORTING_WM_CHECK; |
| 86 | static Atom _XA_NET_SUPPORTED; /* list of protocols (property of root) */ |
| 87 | static Atom _XA_NET_WM_NAME; /* window property */ |
| 88 | static Atom _XA_NET_WM_STATE; /* both window property and request */ |
| 89 | |
| 90 | /* |
| 91 | * _NET_WM_STATE is a list of atoms. |
| 92 | * NB: Standard spelling is "HORZ" (yes, without an 'I'), but KDE2 |
| 93 | * uses misspelled "HORIZ" (see KDE bug #20229). This was fixed in |
| 94 | * KDE 2.2. Under earlier versions of KDE2 horizontal and full |
| 95 | * maximization doesn't work . |
| 96 | */ |
| 97 | static Atom _XA_NET_WM_STATE_MAXIMIZED_HORZ; |
| 98 | static Atom _XA_NET_WM_STATE_MAXIMIZED_VERT; |
| 99 | static Atom _XA_NET_WM_STATE_SHADED; |
| 100 | static Atom _XA_NET_WM_STATE_ABOVE; |
| 101 | static Atom _XA_NET_WM_STATE_BELOW; |
| 102 | static Atom _XA_NET_WM_STATE_HIDDEN; |
| 103 | |
| 104 | /* Currently we only care about max_v and max_h in _NET_WM_STATE */ |
| 105 | #define AWT_NET_N_KNOWN_STATES 2 |
| 106 | |
| 107 | /* Gnome WM spec (superseded by "netwm" above, but still in use) */ |
| 108 | static Atom _XA_WIN_SUPPORTING_WM_CHECK; |
| 109 | static Atom _XA_WIN_PROTOCOLS; |
| 110 | static Atom _XA_WIN_STATE; |
| 111 | static Atom _XA_WIN_LAYER; |
| 112 | |
| 113 | /* Enlightenment */ |
| 114 | static Atom _XA_E_FRAME_SIZE; |
| 115 | |
| 116 | /* KWin (KDE2) */ |
| 117 | static Atom _XA_KDE_NET_WM_FRAME_STRUT; |
| 118 | |
| 119 | /* KWM (KDE 1.x) OBSOLETE??? */ |
| 120 | static Atom XA_KWM_WIN_ICONIFIED; |
| 121 | static Atom XA_KWM_WIN_MAXIMIZED; |
| 122 | |
| 123 | /* OpenLook */ |
| 124 | static Atom _XA_OL_DECOR_DEL; |
| 125 | static Atom _XA_OL_DECOR_HEADER; |
| 126 | static Atom _XA_OL_DECOR_RESIZE; |
| 127 | static Atom _XA_OL_DECOR_PIN; |
| 128 | static Atom _XA_OL_DECOR_CLOSE; |
| 129 | |
| 130 | /* For _NET_WM_STATE ClientMessage requests */ |
| 131 | #define _NET_WM_STATE_REMOVE 0 /* remove/unset property */ |
| 132 | #define _NET_WM_STATE_ADD 1 /* add/set property */ |
| 133 | #define _NET_WM_STATE_TOGGLE 2 /* toggle property */ |
| 134 | |
| 135 | /* _WIN_STATE bits */ |
| 136 | #define WIN_STATE_STICKY (1<<0) /* everyone knows sticky */ |
| 137 | #define WIN_STATE_MINIMIZED (1<<1) /* Reserved - definition is unclear */ |
| 138 | #define WIN_STATE_MAXIMIZED_VERT (1<<2) /* window in maximized V state */ |
| 139 | #define WIN_STATE_MAXIMIZED_HORIZ (1<<3) /* window in maximized H state */ |
| 140 | #define WIN_STATE_HIDDEN (1<<4) /* not on taskbar but window visible*/ |
| 141 | #define WIN_STATE_SHADED (1<<5) /* shaded (MacOS / Afterstep style) */ |
| 142 | #define WIN_LAYER_ONTOP 6 |
| 143 | #define WIN_LAYER_NORMAL 4 |
| 144 | |
| 145 | #define URGENCY_HINT (1<<8) |
| 146 | #define LAYER_ALWAYS_ON_TOP 1 |
| 147 | #define LAYER_NORMAL 0 |
| 148 | |
| 149 | |
| 150 | /* |
| 151 | * Intern a bunch of atoms we are going use. |
| 152 | */ |
| 153 | static void |
| 154 | awt_wm_initAtoms(void) |
| 155 | { |
| 156 | /* Minimize X traffic by creating atoms en mass... This requires |
| 157 | slightly more code but reduces number of server requests. */ |
| 158 | struct atominit { |
| 159 | Atom *atomptr; |
| 160 | const char *name; |
| 161 | }; |
| 162 | |
| 163 | /* Just add new atoms to this list */ |
| 164 | static struct atominit atom_list[] = { |
| 165 | { &XA_WM_STATE, "WM_STATE" }, |
| 166 | |
| 167 | { &XA_UTF8_STRING, "UTF8_STRING" }, |
| 168 | |
| 169 | { &_XA_NET_SUPPORTING_WM_CHECK, "_NET_SUPPORTING_WM_CHECK" }, |
| 170 | { &_XA_NET_SUPPORTED, "_NET_SUPPORTED" }, |
| 171 | { &_XA_NET_WM_STATE, "_NET_WM_STATE" }, |
| 172 | { &_XA_NET_WM_STATE_MAXIMIZED_VERT, "_NET_WM_STATE_MAXIMIZED_VERT" }, |
| 173 | { &_XA_NET_WM_STATE_MAXIMIZED_HORZ, "_NET_WM_STATE_MAXIMIZED_HORZ" }, |
| 174 | { &_XA_NET_WM_STATE_SHADED, "_NET_WM_STATE_SHADED" }, |
| 175 | { &_XA_NET_WM_STATE_ABOVE, "_NET_WM_STATE_ABOVE" }, |
| 176 | { &_XA_NET_WM_STATE_BELOW, "_NET_WM_STATE_BELOW" }, |
| 177 | { &_XA_NET_WM_STATE_HIDDEN, "_NET_WM_STATE_HIDDEN" }, |
| 178 | { &_XA_NET_WM_NAME, "_NET_WM_NAME" }, |
| 179 | |
| 180 | { &_XA_WIN_SUPPORTING_WM_CHECK, "_WIN_SUPPORTING_WM_CHECK" }, |
| 181 | { &_XA_WIN_PROTOCOLS, "_WIN_PROTOCOLS" }, |
| 182 | { &_XA_WIN_STATE, "_WIN_STATE" }, |
| 183 | { &_XA_WIN_LAYER, "_WIN_LAYER" }, |
| 184 | |
| 185 | { &_XA_KDE_NET_WM_FRAME_STRUT, "_KDE_NET_WM_FRAME_STRUT" }, |
| 186 | |
| 187 | { &_XA_E_FRAME_SIZE, "_E_FRAME_SIZE" }, |
| 188 | |
| 189 | { &XA_KWM_WIN_ICONIFIED, "KWM_WIN_ICONIFIED" }, |
| 190 | { &XA_KWM_WIN_MAXIMIZED, "KWM_WIN_MAXIMIZED" }, |
| 191 | |
| 192 | { &_XA_OL_DECOR_DEL, "_OL_DECOR_DEL" }, |
| 193 | { &_XA_OL_DECOR_HEADER, "_OL_DECOR_HEADER" }, |
| 194 | { &_XA_OL_DECOR_RESIZE, "_OL_DECOR_RESIZE" }, |
| 195 | { &_XA_OL_DECOR_PIN, "_OL_DECOR_PIN" }, |
| 196 | { &_XA_OL_DECOR_CLOSE, "_OL_DECOR_CLOSE" } |
| 197 | }; |
| 198 | #define ATOM_LIST_LENGTH (sizeof(atom_list)/sizeof(atom_list[0])) |
| 199 | |
| 200 | const char *names[ATOM_LIST_LENGTH]; |
| 201 | Atom atoms[ATOM_LIST_LENGTH]; |
| 202 | Status status; |
| 203 | size_t i; |
| 204 | |
| 205 | /* Fill the array of atom names */ |
| 206 | for (i = 0; i < ATOM_LIST_LENGTH; ++i) { |
| 207 | names[i] = atom_list[i].name; |
| 208 | } |
| 209 | |
| 210 | DTRACE_PRINT("WM: initializing atoms ... "); |
| 211 | status = XInternAtoms(awt_display, (char**)names, ATOM_LIST_LENGTH, |
| 212 | False, atoms); |
| 213 | if (status == 0) { |
| 214 | DTRACE_PRINTLN("failed"); |
| 215 | return; |
| 216 | } |
| 217 | |
| 218 | /* Store returned atoms into corresponding global variables */ |
| 219 | DTRACE_PRINTLN("ok"); |
| 220 | for (i = 0; i < ATOM_LIST_LENGTH; ++i) { |
| 221 | *atom_list[i].atomptr = atoms[i]; |
| 222 | } |
| 223 | #undef ATOM_LIST_LENGTH |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /* |
| 228 | * When checking for various WMs don't intern certain atoms we use to |
| 229 | * distinguish those WMs. Rather check if the atom is interned first. |
| 230 | * If it's not, further tests are not necessary anyway. |
| 231 | * This also saves older JDK a great deal of confusion (4487993). |
| 232 | */ |
| 233 | static Boolean |
| 234 | awt_wm_atomInterned(Atom *pa, const char *name) |
| 235 | { |
| 236 | DASSERT(pa != NULL); |
| 237 | if (*pa == None) { |
| 238 | DASSERT(name != NULL); |
| 239 | *pa = XInternAtom(awt_display, name, True); |
| 240 | if (*pa == None) { |
| 241 | DTRACE_PRINTLN1("\"%s\" is not interned", name); |
| 242 | return False; |
| 243 | } else { |
| 244 | return True; |
| 245 | } |
| 246 | } else { |
| 247 | return True; |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | |
| 252 | |
| 253 | /*****************************************************************************\ |
| 254 | * |
| 255 | * DTRACE utils for various states ... |
| 256 | * |
| 257 | \*****************************************************************************/ |
| 258 | |
| 259 | |
| 260 | static void |
| 261 | awt_wm_dtraceWMState(uint32_t wm_state) |
| 262 | { |
| 263 | #ifdef DEBUG |
| 264 | DTRACE_PRINT("WM_STATE = "); |
| 265 | switch (wm_state) { |
| 266 | case WithdrawnState: |
| 267 | DTRACE_PRINTLN("Withdrawn"); |
| 268 | break; |
| 269 | case NormalState: |
| 270 | DTRACE_PRINTLN("Normal"); |
| 271 | break; |
| 272 | case IconicState: |
| 273 | DTRACE_PRINTLN("Iconic"); |
| 274 | break; |
| 275 | default: |
| 276 | DTRACE_PRINTLN1("unknown state %d", wm_state); |
| 277 | break; |
| 278 | } |
| 279 | #endif /* DEBUG */ |
| 280 | } |
| 281 | |
| 282 | static void |
| 283 | awt_wm_dtraceStateNet(Atom *net_wm_state, unsigned long nitems) |
| 284 | { |
| 285 | #ifdef DEBUG |
| 286 | unsigned long i; |
| 287 | |
| 288 | DTRACE_PRINT("_NET_WM_STATE = {"); |
| 289 | for (i = 0; i < nitems; ++i) { |
| 290 | char *name, *print_name; |
| 291 | name = XGetAtomName(awt_display, net_wm_state[i]); |
| 292 | if (name == NULL) { |
| 293 | print_name = "???"; |
| 294 | } else if (strncmp(name, "_NET_WM_STATE", 13) == 0) { |
| 295 | print_name = name + 13; /* skip common prefix to reduce noice */ |
| 296 | } else { |
| 297 | print_name = name; |
| 298 | } |
| 299 | DTRACE_PRINT1(" %s", print_name); |
| 300 | if (name) { |
| 301 | XFree(name); |
| 302 | } |
| 303 | } |
| 304 | DTRACE_PRINTLN(" }"); |
| 305 | #endif |
| 306 | } |
| 307 | |
| 308 | |
| 309 | static void |
| 310 | awt_wm_dtraceStateWin(uint32_t win_state) |
| 311 | { |
| 312 | #ifdef DEBUG |
| 313 | DTRACE_PRINT("_WIN_STATE = {"); |
| 314 | if (win_state & WIN_STATE_STICKY) { |
| 315 | DTRACE_PRINT(" STICKY"); |
| 316 | } |
| 317 | if (win_state & WIN_STATE_MINIMIZED) { |
| 318 | DTRACE_PRINT(" MINIMIZED"); |
| 319 | } |
| 320 | if (win_state & WIN_STATE_MAXIMIZED_VERT) { |
| 321 | DTRACE_PRINT(" MAXIMIZED_VERT"); |
| 322 | } |
| 323 | if (win_state & WIN_STATE_MAXIMIZED_HORIZ) { |
| 324 | DTRACE_PRINT(" MAXIMIZED_HORIZ"); |
| 325 | } |
| 326 | if (win_state & WIN_STATE_HIDDEN) { |
| 327 | DTRACE_PRINT(" HIDDEN"); |
| 328 | } |
| 329 | if (win_state & WIN_STATE_SHADED) { |
| 330 | DTRACE_PRINT(" SHADED"); |
| 331 | } |
| 332 | DTRACE_PRINTLN(" }"); |
| 333 | #endif |
| 334 | } |
| 335 | |
| 336 | |
| 337 | static void |
| 338 | awt_wm_dtraceStateJava(jint java_state) |
| 339 | { |
| 340 | #ifdef DEBUG |
| 341 | DTRACE_PRINT("java state = "); |
| 342 | if (java_state == java_awt_Frame_NORMAL) { |
| 343 | DTRACE_PRINTLN("NORMAL"); |
| 344 | } |
| 345 | else { |
| 346 | DTRACE_PRINT("{"); |
| 347 | if (java_state & java_awt_Frame_ICONIFIED) { |
| 348 | DTRACE_PRINT(" ICONIFIED"); |
| 349 | } |
| 350 | if ((java_state & java_awt_Frame_MAXIMIZED_BOTH) |
| 351 | == java_awt_Frame_MAXIMIZED_BOTH) |
| 352 | { |
| 353 | DTRACE_PRINT(" MAXIMIZED_BOTH"); |
| 354 | } |
| 355 | else if (java_state & java_awt_Frame_MAXIMIZED_HORIZ) { |
| 356 | DTRACE_PRINT(" MAXIMIZED_HORIZ"); |
| 357 | } |
| 358 | else if (java_state & java_awt_Frame_MAXIMIZED_VERT) { |
| 359 | DTRACE_PRINT(" MAXIMIZED_VERT"); |
| 360 | } |
| 361 | DTRACE_PRINTLN(" }"); |
| 362 | } |
| 363 | #endif /* DEBUG */ |
| 364 | } |
| 365 | |
| 366 | |
| 367 | |
| 368 | /*****************************************************************************\ |
| 369 | * |
| 370 | * Utility functions ... |
| 371 | * |
| 372 | \*****************************************************************************/ |
| 373 | |
| 374 | /* |
| 375 | * Instead of validating window id, we simply call XGetWindowProperty, |
| 376 | * but temporary install this function as the error handler to ignore |
| 377 | * BadWindow error. |
| 378 | */ |
| 379 | int /* but ingored */ |
| 380 | xerror_ignore_bad_window(Display *dpy, XErrorEvent *err) |
| 381 | { |
| 382 | XERROR_SAVE(err); |
| 383 | if (err->error_code == BadWindow) { |
| 384 | DTRACE_PRINTLN("IGNORING BadWindow"); |
| 385 | return 0; /* ok to fail */ |
| 386 | } |
| 387 | else { |
| 388 | return (*xerror_saved_handler)(dpy, err); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | |
| 393 | /* |
| 394 | * Convenience wrapper for XGetWindowProperty for XA_ATOM properties. |
| 395 | * E.g. WM_PROTOCOLS, _NET_WM_STATE, _OL_DECOR_DEL. |
| 396 | * It's up to caller to XFree returned value. |
| 397 | * Number of items returned is stored to nitems_ptr (if non-null). |
| 398 | */ |
| 399 | static Atom * |
| 400 | awt_getAtomListProperty(Window w, Atom property, unsigned long *nitems_ptr) |
| 401 | { |
| 402 | /* Request status */ |
| 403 | int status; |
| 404 | |
| 405 | /* Returns of XGetWindowProperty */ |
| 406 | Atom actual_type; |
| 407 | int actual_format; |
| 408 | unsigned long nitems_stub; |
| 409 | unsigned long bytes_after; |
| 410 | Atom *list; |
| 411 | |
| 412 | if (nitems_ptr == NULL) { |
| 413 | /* Caller is not interested in the number of items, |
| 414 | provide a stub for XGetWindowProperty */ |
| 415 | nitems_ptr = &nitems_stub; |
| 416 | } |
| 417 | |
| 418 | status = XGetWindowProperty(awt_display, w, |
| 419 | property, 0, 0xFFFF, False, XA_ATOM, |
| 420 | &actual_type, &actual_format, nitems_ptr, &bytes_after, |
| 421 | (unsigned char **)&list); |
| 422 | |
| 423 | if (status != Success || list == NULL) { |
| 424 | *nitems_ptr = 0; |
| 425 | return NULL; |
| 426 | } |
| 427 | |
| 428 | if (actual_type != XA_ATOM || actual_format != 32) { |
| 429 | XFree(list); |
| 430 | *nitems_ptr = 0; |
| 431 | return NULL; |
| 432 | } |
| 433 | |
| 434 | if (*nitems_ptr == 0) { |
| 435 | XFree(list); |
| 436 | return NULL; |
| 437 | } |
| 438 | |
| 439 | return list; |
| 440 | } |
| 441 | |
| 442 | |
| 443 | /* |
| 444 | * Auxiliary function that returns the value of 'property' of type |
| 445 | * 'property_type' on window 'w'. Format of the property must be 8. |
| 446 | * Terminating zero added by XGetWindowProperty is preserved. |
| 447 | * It's up to caller to XFree the result. |
| 448 | */ |
| 449 | static unsigned char * |
| 450 | awt_getProperty8(Window w, Atom property, Atom property_type) |
| 451 | { |
| 452 | /* Request status */ |
| 453 | int status; |
| 454 | |
| 455 | /* Returns of XGetWindowProperty */ |
| 456 | Atom actual_type; |
| 457 | int actual_format; |
| 458 | unsigned long nitems; |
| 459 | unsigned long bytes_after; |
| 460 | unsigned char *string; |
| 461 | |
| 462 | /* BadWindow is ok and will be blocked by our special handler */ |
| 463 | WITH_XERROR_HANDLER(xerror_ignore_bad_window); |
| 464 | { |
| 465 | status = XGetWindowProperty(awt_display, w, |
| 466 | property, 0, 0xFFFF, False, property_type, |
| 467 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 468 | &string); |
| 469 | } |
| 470 | RESTORE_XERROR_HANDLER; |
| 471 | |
| 472 | if (status != Success || string == NULL) { |
| 473 | return NULL; |
| 474 | } |
| 475 | |
| 476 | if (actual_type != property_type || actual_format != 8) { |
| 477 | XFree(string); |
| 478 | return NULL; |
| 479 | } |
| 480 | |
| 481 | /* XGetWindowProperty kindly supplies terminating zero */ |
| 482 | return string; |
| 483 | } |
| 484 | |
| 485 | |
| 486 | /* |
| 487 | * Auxiliary function that returns the value of 'property' of type |
| 488 | * 'property_type' on window 'w'. Format of the property must be 32. |
| 489 | */ |
| 490 | static int32_t |
| 491 | awt_getProperty32(Window w, Atom property, Atom property_type) |
| 492 | { |
| 493 | /* Property value*/ |
| 494 | int32_t value; |
| 495 | |
| 496 | /* Request status */ |
| 497 | int status; |
| 498 | |
| 499 | /* Returns of XGetWindowProperty */ |
| 500 | Atom actual_type; |
| 501 | int actual_format; |
| 502 | unsigned long nitems; |
| 503 | unsigned long bytes_after; |
| 504 | long *data; /* NB: 64 bit: Format 32 props are 'long' */ |
| 505 | |
| 506 | /* BadWindow is ok and will be blocked by our special handler */ |
| 507 | WITH_XERROR_HANDLER(xerror_ignore_bad_window); |
| 508 | { |
| 509 | status = XGetWindowProperty(awt_display, w, |
| 510 | property, 0, 1, False, property_type, |
| 511 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 512 | (unsigned char **)&data); |
| 513 | } |
| 514 | RESTORE_XERROR_HANDLER; |
| 515 | |
| 516 | if (status != Success || data == NULL) { |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | if (actual_type != property_type || actual_format != 32) { |
| 521 | XFree(data); /* NULL data already catched above */ |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | value = (int32_t)*data; |
| 526 | XFree(data); |
| 527 | |
| 528 | return value; |
| 529 | } |
| 530 | |
| 531 | |
| 532 | |
| 533 | /*****************************************************************************\ |
| 534 | * |
| 535 | * Detecting WM ... |
| 536 | * |
| 537 | \*****************************************************************************/ |
| 538 | |
| 539 | |
| 540 | |
| 541 | /* |
| 542 | * Check for anchor_prop(anchor_type) on root, take the value as the |
| 543 | * window id and check if that window exists and has anchor_prop(anchor_type) |
| 544 | * with the same value (i.e. pointing back to self). |
| 545 | * |
| 546 | * Returns the anchor window, as some WM may put interesting stuff in |
| 547 | * its properties (e.g. sawfish). |
| 548 | */ |
| 549 | static Window |
| 550 | awt_wm_checkAnchor(Atom anchor_prop, Atom anchor_type) |
| 551 | { |
| 552 | Window root_xref; |
| 553 | Window self_xref; |
| 554 | |
| 555 | root_xref = (Window)awt_getProperty32(DefaultRootWindow(awt_display), |
| 556 | anchor_prop, anchor_type); |
| 557 | if (root_xref == None) { |
| 558 | DTRACE_PRINTLN("no"); |
| 559 | return None; |
| 560 | } |
| 561 | |
| 562 | DTRACE_PRINT1("0x%x ... ", (unsigned int)root_xref); |
| 563 | self_xref = (Window)awt_getProperty32(root_xref, |
| 564 | anchor_prop, anchor_type); |
| 565 | if (self_xref != root_xref) { |
| 566 | DTRACE_PRINTLN("stale"); |
| 567 | return None; |
| 568 | } |
| 569 | |
| 570 | DTRACE_PRINTLN("ok"); |
| 571 | return self_xref; |
| 572 | } |
| 573 | |
| 574 | |
| 575 | /* |
| 576 | * New WM spec: KDE 2.0.1, sawfish 0.3x, ... |
| 577 | * <http://www.freedesktop.org/standards/wm-spec.html> |
| 578 | */ |
| 579 | static Window |
| 580 | awt_wm_isNetSupporting(void) |
| 581 | { |
| 582 | static Boolean checked = False; |
| 583 | static Window isNetSupporting = None; |
| 584 | |
| 585 | if (checked) { |
| 586 | return isNetSupporting; |
| 587 | } |
| 588 | |
| 589 | DTRACE_PRINT("WM: checking for _NET_SUPPORTING ... "); |
| 590 | isNetSupporting = awt_wm_checkAnchor(_XA_NET_SUPPORTING_WM_CHECK, |
| 591 | XA_WINDOW); |
| 592 | checked = True; |
| 593 | return isNetSupporting; |
| 594 | } |
| 595 | |
| 596 | |
| 597 | /* |
| 598 | * Old Gnome WM spec: WindowMaker, Enlightenment, IceWM ... |
| 599 | * <http://developer.gnome.org/doc/standards/wm/book1.html> |
| 600 | */ |
| 601 | static Window |
| 602 | awt_wm_isWinSupporting(void) |
| 603 | { |
| 604 | static Boolean checked = False; |
| 605 | static Window isWinSupporting = None; |
| 606 | |
| 607 | if (checked) { |
| 608 | return isWinSupporting; |
| 609 | } |
| 610 | |
| 611 | DTRACE_PRINT("WM: checking for _WIN_SUPPORTING ... "); |
| 612 | isWinSupporting = awt_wm_checkAnchor(_XA_WIN_SUPPORTING_WM_CHECK, |
| 613 | XA_CARDINAL); |
| 614 | checked = True; |
| 615 | return isWinSupporting; |
| 616 | } |
| 617 | |
| 618 | |
| 619 | /* |
| 620 | * Check that that the list of protocols specified by WM in property |
| 621 | * named LIST_NAME on the root window contains protocol PROTO. |
| 622 | */ |
| 623 | static Boolean |
| 624 | awt_wm_checkProtocol(Atom list_name, Atom proto) |
| 625 | { |
| 626 | Atom *protocols; |
| 627 | unsigned long nproto; |
| 628 | Boolean found; |
| 629 | unsigned long i; |
| 630 | |
| 631 | protocols = awt_getAtomListProperty(DefaultRootWindow(awt_display), |
| 632 | list_name, &nproto); |
| 633 | if (protocols == NULL) { |
| 634 | return False; |
| 635 | } |
| 636 | |
| 637 | found = False; |
| 638 | for (i = 0; i < nproto; ++i) { |
| 639 | if (protocols[i] == proto) { |
| 640 | found = True; |
| 641 | break; |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | if (protocols != NULL) { |
| 646 | XFree(protocols); |
| 647 | } |
| 648 | return found; |
| 649 | } |
| 650 | |
| 651 | static Boolean |
| 652 | awt_wm_doStateProtocolNet(void) |
| 653 | { |
| 654 | static Boolean checked = False; |
| 655 | static Boolean supported = False; |
| 656 | |
| 657 | if (checked) { |
| 658 | return supported; |
| 659 | } |
| 660 | |
| 661 | if (awt_wm_isNetSupporting()) { |
| 662 | DTRACE_PRINT("WM: checking for _NET_WM_STATE in _NET_SUPPORTED ... "); |
| 663 | supported = awt_wm_checkProtocol(_XA_NET_SUPPORTED, _XA_NET_WM_STATE); |
| 664 | DTRACE_PRINTLN1("%s", supported ? "yes" : "no"); |
| 665 | } |
| 666 | |
| 667 | checked = True; |
| 668 | return supported; |
| 669 | } |
| 670 | |
| 671 | static Boolean |
| 672 | awt_wm_doStateProtocolWin(void) |
| 673 | { |
| 674 | static Boolean checked = False; |
| 675 | static Boolean supported = False; |
| 676 | |
| 677 | if (checked) { |
| 678 | return supported; |
| 679 | } |
| 680 | |
| 681 | if (awt_wm_isWinSupporting()) { |
| 682 | DTRACE_PRINT("WM: checking for _WIN_STATE in _WIN_PROTOCOLS ... "); |
| 683 | supported = awt_wm_checkProtocol(_XA_WIN_PROTOCOLS, _XA_WIN_STATE); |
| 684 | DTRACE_PRINTLN1("%s", supported ? "yes" : "no"); |
| 685 | } |
| 686 | checked = True; |
| 687 | return supported; |
| 688 | } |
| 689 | |
| 690 | |
| 691 | |
| 692 | /* |
| 693 | * Helper function for awt_wm_isEnlightenment. |
| 694 | * Enlightenment uses STRING property for its comms window id. Gaaa! |
| 695 | * The property is ENLIGHTENMENT_COMMS, STRING/8 and the string format |
| 696 | * is "WINID %8x". Gee, I haven't been using scanf for *ages*... :-) |
| 697 | */ |
| 698 | static Window |
| 699 | awt_getECommsWindowIDProperty(Window w) |
| 700 | { |
| 701 | static Atom XA_ENLIGHTENMENT_COMMS = None; |
| 702 | |
| 703 | /* Property value*/ |
| 704 | Window value; |
| 705 | |
| 706 | /* Request status */ |
| 707 | int status; |
| 708 | |
| 709 | /* Returns of XGetWindowProperty */ |
| 710 | Atom actual_type; |
| 711 | int actual_format; |
| 712 | unsigned long nitems; |
| 713 | unsigned long bytes_after; |
| 714 | unsigned char *data; |
| 715 | |
| 716 | if (!awt_wm_atomInterned(&XA_ENLIGHTENMENT_COMMS, "ENLIGHTENMENT_COMMS")) { |
| 717 | return False; |
| 718 | } |
| 719 | |
| 720 | /* BadWindow is ok and will be blocked by our special handler */ |
| 721 | WITH_XERROR_HANDLER(xerror_ignore_bad_window); |
| 722 | { |
| 723 | status = XGetWindowProperty(awt_display, w, |
| 724 | XA_ENLIGHTENMENT_COMMS, 0, 14, False, XA_STRING, |
| 725 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 726 | &data); |
| 727 | } |
| 728 | RESTORE_XERROR_HANDLER; |
| 729 | |
| 730 | if (status != Success || data == NULL) { |
| 731 | DTRACE_PRINTLN("no ENLIGHTENMENT_COMMS"); |
| 732 | return None; |
| 733 | } |
| 734 | |
| 735 | if (actual_type != XA_STRING || actual_format != 8 |
| 736 | || nitems != 14 || bytes_after != 0) |
| 737 | { |
| 738 | DTRACE_PRINTLN("malformed ENLIGHTENMENT_COMMS"); |
| 739 | XFree(data); /* NULL data already catched above */ |
| 740 | return None; |
| 741 | } |
| 742 | |
| 743 | value = None; |
| 744 | sscanf((char *)data, "WINID %8lx", &value); /* NB: 64 bit: XID is long */ |
| 745 | XFree(data); |
| 746 | |
| 747 | return value; |
| 748 | } |
| 749 | |
| 750 | |
| 751 | /* |
| 752 | * Is Enlightenment WM running? Congruent to awt_wm_checkAnchor, but |
| 753 | * uses STRING property peculiar to Enlightenment. |
| 754 | */ |
| 755 | static Boolean |
| 756 | awt_wm_isEnlightenment(void) |
| 757 | { |
| 758 | Window root_xref; |
| 759 | Window self_xref; |
| 760 | |
| 761 | DTRACE_PRINT("WM: checking for Enlightenment ... "); |
| 762 | root_xref = awt_getECommsWindowIDProperty(DefaultRootWindow(awt_display)); |
| 763 | if (root_xref == None) { |
| 764 | return False; |
| 765 | } |
| 766 | |
| 767 | DTRACE_PRINT1("0x%x ... ", root_xref); |
| 768 | self_xref = awt_getECommsWindowIDProperty(root_xref); |
| 769 | if (self_xref != root_xref) { |
| 770 | return False; |
| 771 | } |
| 772 | |
| 773 | DTRACE_PRINTLN("ok"); |
| 774 | return True; |
| 775 | } |
| 776 | |
| 777 | |
| 778 | /* |
| 779 | * Is CDE running? |
| 780 | * |
| 781 | * XXX: This is hairy... CDE is MWM as well. It seems we simply test |
| 782 | * for default setup and will be bitten if user changes things... |
| 783 | * |
| 784 | * Check for _DT_SM_WINDOW_INFO(_DT_SM_WINDOW_INFO) on root. Take the |
| 785 | * second element of the property and check for presence of |
| 786 | * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window. |
| 787 | * |
| 788 | * XXX: Any header that defines this structures??? |
| 789 | */ |
| 790 | static Boolean |
| 791 | awt_wm_isCDE(void) |
| 792 | { |
| 793 | static Atom _XA_DT_SM_WINDOW_INFO = None; |
| 794 | static Atom _XA_DT_SM_STATE_INFO = None; |
| 795 | |
| 796 | /* Property value*/ |
| 797 | Window wmwin; |
| 798 | |
| 799 | /* Request status */ |
| 800 | int status; |
| 801 | |
| 802 | /* Returns of XGetWindowProperty */ |
| 803 | Atom actual_type; |
| 804 | int actual_format; |
| 805 | unsigned long nitems; |
| 806 | unsigned long bytes_after; |
| 807 | long *data; /* NB: 64 bit: Format 32 props are 'long' */ |
| 808 | |
| 809 | DTRACE_PRINT("WM: checking for CDE ... "); |
| 810 | |
| 811 | if (!awt_wm_atomInterned(&_XA_DT_SM_WINDOW_INFO, "_DT_SM_WINDOW_INFO")) { |
| 812 | return False; |
| 813 | } |
| 814 | |
| 815 | status = XGetWindowProperty(awt_display, DefaultRootWindow(awt_display), |
| 816 | _XA_DT_SM_WINDOW_INFO, 0, 2, False, _XA_DT_SM_WINDOW_INFO, |
| 817 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 818 | (unsigned char **)&data); |
| 819 | |
| 820 | if (status != Success || data == NULL) { |
| 821 | DTRACE_PRINTLN("no _DT_SM_WINDOW_INFO on root"); |
| 822 | return False; |
| 823 | } |
| 824 | |
| 825 | if (actual_type != _XA_DT_SM_WINDOW_INFO || actual_format != 32 |
| 826 | || nitems != 2 || bytes_after != 0) |
| 827 | { |
| 828 | DTRACE_PRINTLN("malformed _DT_SM_WINDOW_INFO on root"); |
| 829 | XFree(data); /* NULL data already catched above */ |
| 830 | return False; |
| 831 | } |
| 832 | |
| 833 | wmwin = (Window)data[1]; |
| 834 | XFree(data); |
| 835 | |
| 836 | /* Now check that this window has _DT_SM_STATE_INFO (ignore contents) */ |
| 837 | |
| 838 | if (!awt_wm_atomInterned(&_XA_DT_SM_STATE_INFO, "_DT_SM_STATE_INFO")) { |
| 839 | return False; |
| 840 | } |
| 841 | |
| 842 | /* BadWindow is ok and will be blocked by our special handler */ |
| 843 | WITH_XERROR_HANDLER(xerror_ignore_bad_window); |
| 844 | { |
| 845 | status = XGetWindowProperty(awt_display, wmwin, |
| 846 | _XA_DT_SM_STATE_INFO, 0, 1, False, _XA_DT_SM_STATE_INFO, |
| 847 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 848 | (unsigned char **)&data); |
| 849 | } |
| 850 | RESTORE_XERROR_HANDLER; |
| 851 | |
| 852 | if (status != Success || data == NULL) { |
| 853 | DTRACE_PRINTLN("no _DT_SM_STATE_INFO"); |
| 854 | return False; |
| 855 | } |
| 856 | |
| 857 | if (actual_type != _XA_DT_SM_STATE_INFO || actual_format != 32) { |
| 858 | DTRACE_PRINTLN("malformed _DT_SM_STATE_INFO"); |
| 859 | XFree(data); /* NULL data already catched above */ |
| 860 | return False; |
| 861 | } |
| 862 | |
| 863 | DTRACE_PRINTLN("yes"); |
| 864 | XFree(data); |
| 865 | return True; |
| 866 | } |
| 867 | |
| 868 | /* |
| 869 | * Is MWM running? (Note that CDE will test positive as well). |
| 870 | * |
| 871 | * Check for _MOTIF_WM_INFO(_MOTIF_WM_INFO) on root. Take the |
| 872 | * second element of the property and check for presence of |
| 873 | * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window. |
| 874 | */ |
| 875 | static Boolean |
| 876 | awt_wm_isMotif(void) |
| 877 | { |
| 878 | /* |
| 879 | * Grr. Motif just had to be different, ain't it!? Everyone use |
| 880 | * "XA" for things of type Atom, but motif folks chose to define |
| 881 | * _XA_MOTIF_* to be atom *names*. How pathetic... |
| 882 | */ |
| 883 | #undef _XA_MOTIF_WM_INFO |
| 884 | static Atom _XA_MOTIF_WM_INFO = None; |
| 885 | static Atom _XA_DT_WORKSPACE_CURRENT = None; |
| 886 | |
| 887 | /* Property value */ |
| 888 | Window wmwin; |
| 889 | Atom *curws; |
| 890 | |
| 891 | /* Request status */ |
| 892 | int status; |
| 893 | |
| 894 | /* Returns of XGetWindowProperty */ |
| 895 | Atom actual_type; |
| 896 | int actual_format; |
| 897 | unsigned long nitems; |
| 898 | unsigned long bytes_after; |
| 899 | long *data; /* NB: 64 bit: Format 32 props are 'long' */ |
| 900 | |
| 901 | DTRACE_PRINT("WM: checking for MWM ... "); |
| 902 | |
| 903 | if (!awt_wm_atomInterned(&_XA_MOTIF_WM_INFO, "_MOTIF_WM_INFO") |
| 904 | || !awt_wm_atomInterned(&_XA_DT_WORKSPACE_CURRENT, "_DT_WORKSPACE_CURRENT")) |
| 905 | { |
| 906 | return False; |
| 907 | } |
| 908 | |
| 909 | |
| 910 | status = XGetWindowProperty(awt_display, DefaultRootWindow(awt_display), |
| 911 | _XA_MOTIF_WM_INFO, 0, PROP_MOTIF_WM_INFO_ELEMENTS, False, |
| 912 | _XA_MOTIF_WM_INFO, &actual_type, |
| 913 | &actual_format, &nitems, &bytes_after, |
| 914 | (unsigned char **)&data); |
| 915 | |
| 916 | if (status != Success || data == NULL) { |
| 917 | DTRACE_PRINTLN("no _MOTIF_WM_INFO on root"); |
| 918 | return False; |
| 919 | } |
| 920 | |
| 921 | if (actual_type != _XA_MOTIF_WM_INFO || actual_format != 32 |
| 922 | || nitems != PROP_MOTIF_WM_INFO_ELEMENTS || bytes_after != 0) |
| 923 | { |
| 924 | DTRACE_PRINTLN("malformed _MOTIF_WM_INFO on root"); |
| 925 | XFree(data); /* NULL data already catched above */ |
| 926 | return False; |
| 927 | } |
| 928 | |
| 929 | /* NB: 64 bit: Cannot cast data to MotifWmInfo */ |
| 930 | wmwin = (Window)data[1]; |
| 931 | XFree(data); |
| 932 | |
| 933 | /* Now check that this window has _DT_WORKSPACE_CURRENT */ |
| 934 | curws = awt_getAtomListProperty(wmwin, _XA_DT_WORKSPACE_CURRENT, NULL); |
| 935 | if (curws == NULL) { |
| 936 | DTRACE_PRINTLN("no _DT_WORKSPACE_CURRENT"); |
| 937 | return False; |
| 938 | } |
| 939 | |
| 940 | DTRACE_PRINTLN("yes"); |
| 941 | XFree(curws); |
| 942 | return True; |
| 943 | } |
| 944 | |
| 945 | |
| 946 | static Boolean |
| 947 | awt_wm_isNetWMName(char *name) |
| 948 | { |
| 949 | Window anchor; |
| 950 | unsigned char *net_wm_name; |
| 951 | Boolean matched; |
| 952 | |
| 953 | anchor = awt_wm_isNetSupporting(); |
| 954 | if (anchor == None) { |
| 955 | return False; |
| 956 | } |
| 957 | |
| 958 | DTRACE_PRINT1("WM: checking for %s by _NET_WM_NAME ... ", name); |
| 959 | |
| 960 | /* |
| 961 | * Check both UTF8_STRING and STRING. We only call this function |
| 962 | * with ASCII names and UTF8 preserves ASCII bit-wise. wm-spec |
| 963 | * mandates UTF8_STRING for _NET_WM_NAME but at least sawfish-1.0 |
| 964 | * still uses STRING. (mmm, moving targets...). |
| 965 | */ |
| 966 | net_wm_name = awt_getProperty8(anchor, _XA_NET_WM_NAME, XA_UTF8_STRING); |
| 967 | if (net_wm_name == NULL) { |
| 968 | net_wm_name = awt_getProperty8(anchor, _XA_NET_WM_NAME, XA_STRING); |
| 969 | } |
| 970 | |
| 971 | if (net_wm_name == NULL) { |
| 972 | DTRACE_PRINTLN("no (missing _NET_WM_NAME)"); |
| 973 | return False; |
| 974 | } |
| 975 | |
| 976 | matched = (strcmp((char *)net_wm_name, name) == 0); |
| 977 | if (matched) { |
| 978 | DTRACE_PRINTLN("yes"); |
| 979 | } else { |
| 980 | DTRACE_PRINTLN1("no (_NET_WM_NAME = \"%s\")", net_wm_name); |
| 981 | } |
| 982 | XFree(net_wm_name); |
| 983 | return matched; |
| 984 | } |
| 985 | |
| 986 | /* |
| 987 | * Is Sawfish running? |
| 988 | */ |
| 989 | static Boolean |
| 990 | awt_wm_isSawfish(void) |
| 991 | { |
| 992 | return awt_wm_isNetWMName("Sawfish"); |
| 993 | } |
| 994 | |
| 995 | /* |
| 996 | * Is KDE2 (KWin) running? |
| 997 | */ |
| 998 | static Boolean |
| 999 | awt_wm_isKDE2(void) |
| 1000 | { |
| 1001 | return awt_wm_isNetWMName("KWin"); |
| 1002 | } |
| 1003 | |
| 1004 | |
| 1005 | /* |
| 1006 | * Is Metacity running? |
| 1007 | */ |
| 1008 | static Boolean |
| 1009 | awt_wm_isMetacity(void) |
| 1010 | { |
| 1011 | return awt_wm_isNetWMName("Metacity"); |
| 1012 | } |
| 1013 | |
| 1014 | |
| 1015 | /* |
| 1016 | * Temporary error handler that ensures that we know if |
| 1017 | * XChangeProperty succeeded or not. |
| 1018 | */ |
| 1019 | static int /* but ignored */ |
| 1020 | xerror_verify_change_property(Display *dpy, XErrorEvent *err) |
| 1021 | { |
| 1022 | XERROR_SAVE(err); |
| 1023 | if (err->request_code == X_ChangeProperty) { |
| 1024 | return 0; |
| 1025 | } |
| 1026 | else { |
| 1027 | return (*xerror_saved_handler)(dpy, err); |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | |
| 1032 | /* |
| 1033 | * Prepare IceWM check. |
| 1034 | * |
| 1035 | * The only way to detect IceWM, seems to be by setting |
| 1036 | * _ICEWM_WINOPTHINT(_ICEWM_WINOPTHINT/8) on root and checking if it |
| 1037 | * was immediately deleted by IceWM. |
| 1038 | * |
| 1039 | * But messing with PropertyNotify here is way too much trouble, so |
| 1040 | * approximate the check by setting the property in this function and |
| 1041 | * checking if it still exists later on. |
| 1042 | * |
| 1043 | * Gaa, dirty dances... |
| 1044 | */ |
| 1045 | static Boolean |
| 1046 | awt_wm_prepareIsIceWM(void) |
| 1047 | { |
| 1048 | static Atom _XA_ICEWM_WINOPTHINT = None; |
| 1049 | |
| 1050 | /* |
| 1051 | * Choose something innocuous: "AWT_ICEWM_TEST allWorkspaces 0". |
| 1052 | * IceWM expects "class\0option\0arg\0" with zero bytes as delimiters. |
| 1053 | */ |
| 1054 | static unsigned char opt[] = { |
| 1055 | 'A','W','T','_','I','C','E','W','M','_','T','E','S','T','\0', |
| 1056 | 'a','l','l','W','o','r','k','s','p','a','c','e','s','\0', |
| 1057 | '0','\0' |
| 1058 | }; |
| 1059 | |
| 1060 | DTRACE_PRINT("WM: scheduling check for IceWM ... "); |
| 1061 | |
| 1062 | if (!awt_wm_atomInterned(&_XA_ICEWM_WINOPTHINT, "_ICEWM_WINOPTHINT")) { |
| 1063 | return False; |
| 1064 | } |
| 1065 | |
| 1066 | WITH_XERROR_HANDLER(xerror_verify_change_property); |
| 1067 | { |
| 1068 | XChangeProperty(awt_display, DefaultRootWindow(awt_display), |
| 1069 | _XA_ICEWM_WINOPTHINT, _XA_ICEWM_WINOPTHINT, 8, |
| 1070 | PropModeReplace, opt, sizeof(opt)); |
| 1071 | } |
| 1072 | RESTORE_XERROR_HANDLER; |
| 1073 | |
| 1074 | if (xerror_code != Success) { |
| 1075 | DTRACE_PRINTLN1("can't set _ICEWM_WINOPTHINT, error = %d", |
| 1076 | xerror_code); |
| 1077 | return False; |
| 1078 | } |
| 1079 | else { |
| 1080 | DTRACE_PRINTLN("scheduled"); |
| 1081 | return True; |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | /* |
| 1086 | * Is IceWM running? |
| 1087 | * |
| 1088 | * Note well: Only call this if awt_wm_prepareIsIceWM succeeded, or a |
| 1089 | * false positive will be reported. |
| 1090 | */ |
| 1091 | static Boolean |
| 1092 | awt_wm_isIceWM(void) |
| 1093 | { |
| 1094 | static Atom _XA_ICEWM_WINOPTHINT = None; |
| 1095 | |
| 1096 | /* Request status */ |
| 1097 | int status; |
| 1098 | |
| 1099 | /* Returns of XGetWindowProperty */ |
| 1100 | Atom actual_type; |
| 1101 | int actual_format; |
| 1102 | unsigned long nitems; |
| 1103 | unsigned long bytes_after; |
| 1104 | unsigned char *data; |
| 1105 | |
| 1106 | DTRACE_PRINT("WM: checking for IceWM ... "); |
| 1107 | |
| 1108 | if (!awt_wm_atomInterned(&_XA_ICEWM_WINOPTHINT, "_ICEWM_WINOPTHINT")) { |
| 1109 | return False; |
| 1110 | } |
| 1111 | |
| 1112 | XGetWindowProperty(awt_display, DefaultRootWindow(awt_display), |
| 1113 | _XA_ICEWM_WINOPTHINT, 0, 0xFFFF, True, /* NB: deleting! */ |
| 1114 | _XA_ICEWM_WINOPTHINT, &actual_type, |
| 1115 | &actual_format, &nitems, &bytes_after, |
| 1116 | &data); |
| 1117 | |
| 1118 | if (data != NULL) { |
| 1119 | XFree(data); |
| 1120 | } |
| 1121 | |
| 1122 | if (actual_type == None) { |
| 1123 | DTRACE_PRINTLN("yes"); |
| 1124 | return True; |
| 1125 | } |
| 1126 | else { |
| 1127 | DTRACE_PRINTLN("no"); |
| 1128 | return False; |
| 1129 | } |
| 1130 | } |
| 1131 | |
| 1132 | /* |
| 1133 | * Is OpenLook WM running? |
| 1134 | * |
| 1135 | * This one is pretty lame, but the only property peculiar to OLWM is |
| 1136 | * _SUN_WM_PROTOCOLS(ATOM[]). Fortunately, olwm deletes it on exit. |
| 1137 | */ |
| 1138 | static Boolean |
| 1139 | awt_wm_isOpenLook(void) |
| 1140 | { |
| 1141 | static Atom _XA_SUN_WM_PROTOCOLS = None; |
| 1142 | Atom *list; |
| 1143 | |
| 1144 | DTRACE_PRINT("WM: checking for OpenLook WM ... "); |
| 1145 | |
| 1146 | if (!awt_wm_atomInterned(&_XA_SUN_WM_PROTOCOLS, "_SUN_WM_PROTOCOLS")) { |
| 1147 | return False; |
| 1148 | } |
| 1149 | |
| 1150 | list = awt_getAtomListProperty(DefaultRootWindow(awt_display), |
| 1151 | _XA_SUN_WM_PROTOCOLS, NULL); |
| 1152 | if (list == NULL) { |
| 1153 | DTRACE_PRINTLN("no _SUN_WM_PROTOCOLS on root"); |
| 1154 | return False; |
| 1155 | } |
| 1156 | |
| 1157 | DTRACE_PRINTLN("yes"); |
| 1158 | XFree(list); |
| 1159 | return True; |
| 1160 | } |
| 1161 | |
| 1162 | |
| 1163 | |
| 1164 | static Boolean winmgr_running = False; |
| 1165 | |
| 1166 | /* |
| 1167 | * Temporary error handler that checks if selecting for |
| 1168 | * SubstructureRedirect failed. |
| 1169 | */ |
| 1170 | static int /* but ignored */ |
| 1171 | xerror_detect_wm(Display *dpy, XErrorEvent *err) |
| 1172 | { |
| 1173 | XERROR_SAVE(err); |
| 1174 | if (err->request_code == X_ChangeWindowAttributes |
| 1175 | && err->error_code == BadAccess) |
| 1176 | { |
| 1177 | DTRACE_PRINTLN("some WM is running (hmm, we'll see)"); |
| 1178 | winmgr_running = True; |
| 1179 | return 0; |
| 1180 | } |
| 1181 | else { |
| 1182 | return (*xerror_saved_handler)(dpy, err); |
| 1183 | } |
| 1184 | } |
| 1185 | |
| 1186 | |
| 1187 | /* |
| 1188 | * Make an educated guess about running window manager. |
| 1189 | * XXX: ideally, we should detect wm restart. |
| 1190 | */ |
| 1191 | enum wmgr_t |
| 1192 | awt_wm_getRunningWM(void) |
| 1193 | { |
| 1194 | /* |
| 1195 | * Ideally, we should support cases when a different WM is started |
| 1196 | * during a Java app lifetime. |
| 1197 | */ |
| 1198 | static enum wmgr_t awt_wmgr = UNDETERMINED_WM; |
| 1199 | |
| 1200 | XSetWindowAttributes substruct; |
| 1201 | const char *vendor_string; |
| 1202 | Boolean doIsIceWM; |
| 1203 | |
| 1204 | if (awt_wmgr != UNDETERMINED_WM) { |
| 1205 | return awt_wmgr; |
| 1206 | } |
| 1207 | |
| 1208 | /* |
| 1209 | * Quick checks for specific servers. |
| 1210 | */ |
| 1211 | vendor_string = ServerVendor(awt_display); |
| 1212 | if (strstr(vendor_string, "eXcursion") != NULL) { |
| 1213 | /* |
| 1214 | * Use NO_WM since in all other aspects eXcursion is like not |
| 1215 | * having a window manager running. I.e. it does not reparent |
| 1216 | * top level shells. |
| 1217 | */ |
| 1218 | DTRACE_PRINTLN("WM: eXcursion detected - treating as NO_WM"); |
| 1219 | awt_wmgr = NO_WM; |
| 1220 | return awt_wmgr; |
| 1221 | } |
| 1222 | |
| 1223 | /* |
| 1224 | * If *any* window manager is running? |
| 1225 | * |
| 1226 | * Try selecting for SubstructureRedirect, that only one client |
| 1227 | * can select for, and if the request fails, than some other WM is |
| 1228 | * already running. |
| 1229 | */ |
| 1230 | winmgr_running = 0; |
| 1231 | substruct.event_mask = SubstructureRedirectMask; |
| 1232 | |
| 1233 | DTRACE_PRINT("WM: trying SubstructureRedirect ... "); |
| 1234 | WITH_XERROR_HANDLER(xerror_detect_wm); |
| 1235 | { |
| 1236 | XChangeWindowAttributes(awt_display, DefaultRootWindow(awt_display), |
| 1237 | CWEventMask, &substruct); |
| 1238 | } |
| 1239 | RESTORE_XERROR_HANDLER; |
| 1240 | |
| 1241 | /* |
| 1242 | * If no WM is running than our selection for SubstructureRedirect |
| 1243 | * succeeded and needs to be undone (hey we are *not* a WM ;-). |
| 1244 | */ |
| 1245 | if (!winmgr_running) { |
| 1246 | DTRACE_PRINTLN("no WM is running"); |
| 1247 | awt_wmgr = NO_WM; |
| 1248 | substruct.event_mask = 0; |
| 1249 | XChangeWindowAttributes(awt_display, DefaultRootWindow(awt_display), |
| 1250 | CWEventMask, &substruct); |
| 1251 | return NO_WM; |
| 1252 | } |
| 1253 | |
| 1254 | /* actual check for IceWM to follow below */ |
| 1255 | doIsIceWM = awt_wm_prepareIsIceWM(); /* and let IceWM to act */ |
| 1256 | |
| 1257 | if (awt_wm_isNetSupporting()) { |
| 1258 | awt_wm_doStateProtocolNet(); |
| 1259 | } |
| 1260 | if (awt_wm_isWinSupporting()) { |
| 1261 | awt_wm_doStateProtocolWin(); |
| 1262 | } |
| 1263 | |
| 1264 | /* |
| 1265 | * Ok, some WM is out there. Check which one by testing for |
| 1266 | * "distinguishing" atoms. |
| 1267 | */ |
| 1268 | if (doIsIceWM && awt_wm_isIceWM()) { |
| 1269 | awt_wmgr = ICE_WM; |
| 1270 | } |
| 1271 | else if (awt_wm_isEnlightenment()) { |
| 1272 | awt_wmgr = ENLIGHTEN_WM; |
| 1273 | } |
| 1274 | else if (awt_wm_isMetacity()) { |
| 1275 | awt_wmgr = METACITY_WM; |
| 1276 | } |
| 1277 | else if (awt_wm_isSawfish()) { |
| 1278 | awt_wmgr = SAWFISH_WM; |
| 1279 | } |
| 1280 | else if (awt_wm_isKDE2()) { |
| 1281 | awt_wmgr = KDE2_WM; |
| 1282 | } |
| 1283 | /* |
| 1284 | * We don't check for legacy WM when we already know that WM |
| 1285 | * supports WIN or _NET wm spec. |
| 1286 | */ |
| 1287 | else if (awt_wm_isNetSupporting()) { |
| 1288 | DTRACE_PRINTLN("WM: other WM (supports _NET)"); |
| 1289 | awt_wmgr = OTHER_WM; |
| 1290 | } |
| 1291 | else if (awt_wm_isWinSupporting()) { |
| 1292 | DTRACE_PRINTLN("WM: other WM (supports _WIN)"); |
| 1293 | awt_wmgr = OTHER_WM; |
| 1294 | } |
| 1295 | /* |
| 1296 | * Check for legacy WMs. |
| 1297 | */ |
| 1298 | else if (awt_wm_isCDE()) { /* XXX: must come before isMotif */ |
| 1299 | awt_wmgr = CDE_WM; |
| 1300 | } |
| 1301 | else if (awt_wm_isMotif()) { |
| 1302 | awt_wmgr = MOTIF_WM; |
| 1303 | } |
| 1304 | else if (awt_wm_isOpenLook()) { |
| 1305 | awt_wmgr = OPENLOOK_WM; |
| 1306 | } |
| 1307 | else { |
| 1308 | DTRACE_PRINTLN("WM: some other legacy WM"); |
| 1309 | awt_wmgr = OTHER_WM; |
| 1310 | } |
| 1311 | |
| 1312 | return awt_wmgr; |
| 1313 | } |
| 1314 | |
| 1315 | |
| 1316 | /* |
| 1317 | * Some buggy WMs ignore window gravity when processing |
| 1318 | * ConfigureRequest and position window as if the gravity is Static. |
| 1319 | * We work around this in MWindowPeer.pReshape(). |
| 1320 | */ |
| 1321 | Boolean |
| 1322 | awt_wm_configureGravityBuggy(void) |
| 1323 | { |
| 1324 | static int env_not_checked = 1; |
| 1325 | static int env_buggy = 0; |
| 1326 | |
| 1327 | if (env_not_checked) { |
| 1328 | DTRACE_PRINT("WM: checking for _JAVA_AWT_WM_STATIC_GRAVITY in environment ... "); |
| 1329 | if (getenv("_JAVA_AWT_WM_STATIC_GRAVITY") != NULL) { |
| 1330 | DTRACE_PRINTLN("set"); |
| 1331 | env_buggy = 1; |
| 1332 | } else { |
| 1333 | DTRACE_PRINTLN("no"); |
| 1334 | } |
| 1335 | env_not_checked = 0; |
| 1336 | } |
| 1337 | |
| 1338 | if (env_buggy) { |
| 1339 | return True; |
| 1340 | } |
| 1341 | |
| 1342 | switch (awt_wm_getRunningWM()) { |
| 1343 | case ICE_WM: |
| 1344 | /* |
| 1345 | * See bug #228981 at IceWM's SourceForge pages. |
| 1346 | * Latest stable version 1.0.8-6 still has this problem. |
| 1347 | */ |
| 1348 | return True; |
| 1349 | |
| 1350 | case ENLIGHTEN_WM: |
| 1351 | /* At least E16 is buggy. */ |
| 1352 | return True; |
| 1353 | |
| 1354 | default: |
| 1355 | return False; |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | /** |
| 1360 | * Check if state is supported. |
| 1361 | * Note that a compound state is always reported as not supported. |
| 1362 | * Note also that MAXIMIZED_BOTH is considered not a compound state. |
| 1363 | * Therefore, a compound state is just ICONIFIED | anything else. |
| 1364 | * |
| 1365 | */ |
| 1366 | Boolean |
| 1367 | awt_wm_supportsExtendedState(jint state) |
| 1368 | { |
| 1369 | switch (state) { |
| 1370 | case java_awt_Frame_MAXIMIZED_VERT: |
| 1371 | case java_awt_Frame_MAXIMIZED_HORIZ: |
| 1372 | /* |
| 1373 | * WMs that talk NET/WIN protocol, but do not support |
| 1374 | * unidirectional maximization. |
| 1375 | */ |
| 1376 | if (awt_wm_getRunningWM() == METACITY_WM) { |
| 1377 | /* "This is a deliberate policy decision." -hp */ |
| 1378 | return JNI_FALSE; |
| 1379 | } |
| 1380 | /* FALLTROUGH */ |
| 1381 | case java_awt_Frame_MAXIMIZED_BOTH: |
| 1382 | return (awt_wm_doStateProtocolNet() || awt_wm_doStateProtocolWin()); |
| 1383 | default: |
| 1384 | return JNI_FALSE; |
| 1385 | } |
| 1386 | } |
| 1387 | |
| 1388 | |
| 1389 | |
| 1390 | |
| 1391 | /*****************************************************************************\ |
| 1392 | * |
| 1393 | * Size and decoration hints ... |
| 1394 | * |
| 1395 | \*****************************************************************************/ |
| 1396 | |
| 1397 | |
| 1398 | /* |
| 1399 | * Remove size hints specified by the mask. |
| 1400 | * XXX: Why do we need this in the first place??? |
| 1401 | */ |
| 1402 | void |
| 1403 | awt_wm_removeSizeHints(Widget shell, long mask) |
| 1404 | { |
| 1405 | Display *dpy = XtDisplay(shell); |
| 1406 | Window shell_win = XtWindow(shell); |
| 1407 | XSizeHints *hints = XAllocSizeHints(); |
| 1408 | long ignore = 0; |
| 1409 | |
| 1410 | if (hints == NULL) { |
| 1411 | DTRACE_PRINTLN("WM: removeSizeHints FAILED to allocate XSizeHints"); |
| 1412 | return; |
| 1413 | } |
| 1414 | |
| 1415 | /* sanitize the mask, only do these hints */ |
| 1416 | mask &= (PMaxSize|PMinSize|USPosition|PPosition); |
| 1417 | |
| 1418 | XGetWMNormalHints(dpy, shell_win, hints, &ignore); |
| 1419 | if ((hints->flags & mask) == 0) { |
| 1420 | XFree(hints); |
| 1421 | return; |
| 1422 | } |
| 1423 | |
| 1424 | #ifdef DEBUG |
| 1425 | DTRACE_PRINT("WM: removing hints"); |
| 1426 | |
| 1427 | if (mask & PMaxSize) { |
| 1428 | DTRACE_PRINT(" Max = "); |
| 1429 | if (hints->flags & PMaxSize) { |
| 1430 | DTRACE_PRINT2("%d x %d;", hints->max_width, hints->max_height); |
| 1431 | } else { |
| 1432 | DTRACE_PRINT("none;"); |
| 1433 | } |
| 1434 | } |
| 1435 | |
| 1436 | if (mask & PMinSize) { |
| 1437 | DTRACE_PRINT(" Min = "); |
| 1438 | if (hints->flags & PMinSize) { |
| 1439 | DTRACE_PRINT2("%d x %d;", hints->min_width, hints->min_height); |
| 1440 | } else { |
| 1441 | DTRACE_PRINT("none;"); |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | DTRACE_PRINTLN(""); |
| 1446 | #endif |
| 1447 | |
| 1448 | hints->flags &= ~mask; |
| 1449 | XSetWMNormalHints(dpy, shell_win, hints); |
| 1450 | XFree(hints); |
| 1451 | } |
| 1452 | |
| 1453 | /* |
| 1454 | * |
| 1455 | * |
| 1456 | */ |
| 1457 | static void |
| 1458 | awt_wm_proclaimUrgency(struct FrameData *wdata) |
| 1459 | { |
| 1460 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 1461 | Window shell_win = XtWindow(wdata->winData.shell); |
| 1462 | |
| 1463 | XWMHints *hints = XGetWMHints(dpy, shell_win); |
| 1464 | if( hints == NULL ) { |
| 1465 | /* For now just */ return; |
| 1466 | } |
| 1467 | if ((hints->flags & URGENCY_HINT) != 0) { |
| 1468 | /* it's here already */ |
| 1469 | XFree(hints); |
| 1470 | return; |
| 1471 | } |
| 1472 | hints->flags |= URGENCY_HINT; |
| 1473 | XSetWMHints(dpy, shell_win, hints); |
| 1474 | XFree(hints); |
| 1475 | } |
| 1476 | |
| 1477 | /* |
| 1478 | * If MWM_DECOR_ALL bit is set, then the rest of the bit-mask is taken |
| 1479 | * to be subtracted from the decorations. Normalize decoration spec |
| 1480 | * so that we can map motif decor to something else bit-by-bit in the |
| 1481 | * rest of the code. |
| 1482 | */ |
| 1483 | static int |
| 1484 | awt_wm_normalizeMotifDecor(int decorations) |
| 1485 | { |
| 1486 | int d; |
| 1487 | |
| 1488 | if (!(decorations & MWM_DECOR_ALL)) |
| 1489 | return decorations; /* already normalized */ |
| 1490 | |
| 1491 | d = MWM_DECOR_BORDER |MWM_DECOR_RESIZEH | MWM_DECOR_TITLE |
| 1492 | | MWM_DECOR_MENU | MWM_DECOR_MINIMIZE | MWM_DECOR_MAXIMIZE; |
| 1493 | d &= ~decorations; |
| 1494 | return d; |
| 1495 | } |
| 1496 | |
| 1497 | |
| 1498 | /* |
| 1499 | * Infer OL properties from MWM decorations. |
| 1500 | * Use _OL_DECOR_DEL(ATOM[]) to remove unwanted ones. |
| 1501 | */ |
| 1502 | static void |
| 1503 | awt_wm_setOLDecor(struct FrameData *wdata, Boolean resizable, int decorations) |
| 1504 | { |
| 1505 | Window shell_win = XtWindow(wdata->winData.shell); |
| 1506 | Atom decorDel[3]; |
| 1507 | int nitems; |
| 1508 | |
| 1509 | if (shell_win == None) { |
| 1510 | DTRACE_PRINTLN("WM: setOLDecor - no window, returning"); |
| 1511 | return; |
| 1512 | } |
| 1513 | |
| 1514 | decorations = awt_wm_normalizeMotifDecor(decorations); |
| 1515 | DTRACE_PRINT("WM: _OL_DECOR_DEL = {"); |
| 1516 | |
| 1517 | nitems = 0; |
| 1518 | if (!(decorations & MWM_DECOR_TITLE)) { |
| 1519 | DTRACE_PRINT(" _OL_DECOR_HEADER"); |
| 1520 | decorDel[nitems++] = _XA_OL_DECOR_HEADER; |
| 1521 | } |
| 1522 | if (!(decorations & (MWM_DECOR_RESIZEH | MWM_DECOR_MAXIMIZE))) { |
| 1523 | DTRACE_PRINT(" _OL_DECOR_RESIZE"); |
| 1524 | decorDel[nitems++] = _XA_OL_DECOR_RESIZE; |
| 1525 | } |
| 1526 | if (!(decorations & (MWM_DECOR_MENU | MWM_DECOR_MAXIMIZE |
| 1527 | | MWM_DECOR_MINIMIZE))) |
| 1528 | { |
| 1529 | DTRACE_PRINT(" _OL_DECOR_CLOSE"); |
| 1530 | decorDel[nitems++] = _XA_OL_DECOR_CLOSE; |
| 1531 | } |
| 1532 | DTRACE_PRINT(" }"); |
| 1533 | |
| 1534 | if (nitems == 0) { |
| 1535 | DTRACE_PRINTLN(" ... removing"); |
| 1536 | XDeleteProperty(awt_display, shell_win, _XA_OL_DECOR_DEL); |
| 1537 | } |
| 1538 | else { |
| 1539 | DTRACE_PRINTLN(" ... setting"); |
| 1540 | XChangeProperty(awt_display, shell_win, |
| 1541 | _XA_OL_DECOR_DEL, XA_ATOM, 32, |
| 1542 | PropModeReplace, (unsigned char *)decorDel, nitems); |
| 1543 | } |
| 1544 | } |
| 1545 | |
| 1546 | /* |
| 1547 | * Set MWM decorations. Infer MWM functions from decorations. |
| 1548 | */ |
| 1549 | static void |
| 1550 | awt_wm_setMotifDecor(struct FrameData *wdata, Boolean resizable, int decorations) |
| 1551 | { |
| 1552 | int functions; |
| 1553 | |
| 1554 | /* Apparently some WMs don't implement MWM_*_ALL semantic correctly */ |
| 1555 | if ((decorations & MWM_DECOR_ALL) && (decorations != MWM_DECOR_ALL)) { |
| 1556 | decorations = awt_wm_normalizeMotifDecor(decorations); |
| 1557 | DTRACE_PRINTLN1("WM: setMotifDecor normalize exclusions, decor = 0x%X", |
| 1558 | decorations); |
| 1559 | } |
| 1560 | |
| 1561 | DTRACE_PRINT("WM: setMotifDecor functions = {"); |
| 1562 | functions = 0; |
| 1563 | |
| 1564 | if (decorations & MWM_DECOR_ALL) { |
| 1565 | DTRACE_PRINT(" ALL"); |
| 1566 | functions |= MWM_FUNC_ALL; |
| 1567 | } |
| 1568 | else { |
| 1569 | /* |
| 1570 | * Functions we always want to be enabled as mwm(1) and |
| 1571 | * descendants not only hide disabled functions away from |
| 1572 | * user, but also ignore corresponding requests from the |
| 1573 | * program itself (e.g. 4442047). |
| 1574 | */ |
| 1575 | DTRACE_PRINT(" CLOSE MOVE MINIMIZE"); |
| 1576 | functions |= (MWM_FUNC_CLOSE | MWM_FUNC_MOVE | MWM_FUNC_MINIMIZE); |
| 1577 | |
| 1578 | if (resizable) { |
| 1579 | DTRACE_PRINT(" RESIZE MAXIMIZE"); |
| 1580 | functions |= MWM_FUNC_RESIZE | MWM_FUNC_MAXIMIZE; |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | DTRACE_PRINTLN(" }"); |
| 1585 | |
| 1586 | XtVaSetValues(wdata->winData.shell, |
| 1587 | XmNmwmDecorations, decorations, |
| 1588 | XmNmwmFunctions, functions, |
| 1589 | NULL); |
| 1590 | } |
| 1591 | |
| 1592 | |
| 1593 | /* |
| 1594 | * Under some window managers if shell is already mapped, we MUST |
| 1595 | * unmap and later remap in order to effect the changes we make in the |
| 1596 | * window manager decorations. |
| 1597 | * |
| 1598 | * N.B. This unmapping / remapping of the shell exposes a bug in |
| 1599 | * X/Motif or the Motif Window Manager. When you attempt to map a |
| 1600 | * widget which is positioned (partially) off-screen, the window is |
| 1601 | * relocated to be entirely on screen. Good idea. But if both the x |
| 1602 | * and the y coordinates are less than the origin (0,0), the first |
| 1603 | * (re)map will move the window to the origin, and any subsequent |
| 1604 | * (re)map will relocate the window at some other point on the screen. |
| 1605 | * I have written a short Motif test program to discover this bug. |
| 1606 | * This should occur infrequently and it does not cause any real |
| 1607 | * problem. So for now we'll let it be. |
| 1608 | */ |
| 1609 | static Boolean |
| 1610 | awt_wm_needRemap() |
| 1611 | { |
| 1612 | switch (awt_wm_getRunningWM()) { |
| 1613 | #if 0 /* XXX */ |
| 1614 | case OPENLOOK_WM: |
| 1615 | case MOTIF_WM: |
| 1616 | case CDE_WM: |
| 1617 | case ICE_WM: |
| 1618 | case ENLIGHTEN_WM: |
| 1619 | return True; |
| 1620 | #endif |
| 1621 | default: |
| 1622 | return True; |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | /* |
| 1627 | * Set decoration hints on the shell to wdata->decor adjusted |
| 1628 | * appropriately if not resizable. |
| 1629 | */ |
| 1630 | void |
| 1631 | awt_wm_setShellDecor(struct FrameData *wdata, Boolean resizable) |
| 1632 | { |
| 1633 | int decorations = wdata->decor; |
| 1634 | |
| 1635 | DTRACE_PRINTLN3("WM: setShellDecor(0x%x/0x%x, %s)", |
| 1636 | wdata->winData.shell, XtWindow(wdata->winData.shell), |
| 1637 | resizable ? "resizable" : "not resizable"); |
| 1638 | |
| 1639 | if (!resizable) { |
| 1640 | if (decorations & MWM_DECOR_ALL) { |
| 1641 | decorations |= (MWM_DECOR_RESIZEH | MWM_DECOR_MAXIMIZE); |
| 1642 | } |
| 1643 | else { |
| 1644 | decorations &= ~(MWM_DECOR_RESIZEH | MWM_DECOR_MAXIMIZE); |
| 1645 | } |
| 1646 | } |
| 1647 | |
| 1648 | DTRACE_PRINTLN1("WM: decorations = 0x%X", decorations); |
| 1649 | awt_wm_setMotifDecor(wdata, resizable, decorations); |
| 1650 | awt_wm_setOLDecor(wdata, resizable, decorations); |
| 1651 | |
| 1652 | /* Some WMs need remap to redecorate the window */ |
| 1653 | if (wdata->isShowing && awt_wm_needRemap()) { |
| 1654 | /* |
| 1655 | * Do the re/mapping at the Xlib level. Since we essentially |
| 1656 | * work around a WM bug we don't want this hack to be exposed |
| 1657 | * to Intrinsics (i.e. don't mess with grabs, callbacks etc). |
| 1658 | */ |
| 1659 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 1660 | Window shell_win = XtWindow(wdata->winData.shell); |
| 1661 | |
| 1662 | DTRACE_PRINT("WM: setShellDecor REMAPPING ... "); |
| 1663 | XUnmapWindow(dpy, shell_win); |
| 1664 | XSync(dpy, False); /* give WM a chance to catch up */ |
| 1665 | XMapWindow(dpy, shell_win); |
| 1666 | DTRACE_PRINTLN("done"); |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | |
| 1671 | /* |
| 1672 | * Make specified shell resizable. |
| 1673 | */ |
| 1674 | void |
| 1675 | awt_wm_setShellResizable(struct FrameData *wdata) |
| 1676 | { |
| 1677 | DTRACE_PRINTLN2("WM: setShellResizable(0x%x/0x%x)", |
| 1678 | wdata->winData.shell, XtWindow(wdata->winData.shell)); |
| 1679 | |
| 1680 | XtVaSetValues(wdata->winData.shell, |
| 1681 | XmNallowShellResize, True, |
| 1682 | XmNminWidth, XtUnspecifiedShellInt, |
| 1683 | XmNminHeight, XtUnspecifiedShellInt, |
| 1684 | XmNmaxWidth, XtUnspecifiedShellInt, |
| 1685 | XmNmaxHeight, XtUnspecifiedShellInt, |
| 1686 | NULL); |
| 1687 | |
| 1688 | /* REMINDER: will need to revisit when setExtendedStateBounds is added */ |
| 1689 | awt_wm_removeSizeHints(wdata->winData.shell, PMinSize|PMaxSize); |
| 1690 | |
| 1691 | /* Restore decorations */ |
| 1692 | awt_wm_setShellDecor(wdata, True); |
| 1693 | } |
| 1694 | |
| 1695 | |
| 1696 | /* |
| 1697 | * Make specified shell non-resizable. |
| 1698 | * If justChangeSize is false, update decorations as well. |
| 1699 | */ |
| 1700 | void |
| 1701 | awt_wm_setShellNotResizable(struct FrameData *wdata, |
| 1702 | int32_t width, int32_t height, |
| 1703 | Boolean justChangeSize) |
| 1704 | { |
| 1705 | DTRACE_PRINTLN5("WM: setShellNotResizable(0x%x/0x%x, %d, %d, %s)", |
| 1706 | wdata->winData.shell, XtWindow(wdata->winData.shell), |
| 1707 | width, height, |
| 1708 | justChangeSize ? "size only" : "redecorate"); |
| 1709 | |
| 1710 | /* Fix min/max size hints at the specified values */ |
| 1711 | if ((width > 0) && (height > 0)) { |
| 1712 | XtVaSetValues(wdata->winData.shell, |
| 1713 | XmNwidth, (XtArgVal)width, |
| 1714 | XmNheight, (XtArgVal)height, |
| 1715 | XmNminWidth, (XtArgVal)width, |
| 1716 | XmNminHeight, (XtArgVal)height, |
| 1717 | XmNmaxWidth, (XtArgVal)width, |
| 1718 | XmNmaxHeight, (XtArgVal)height, |
| 1719 | NULL); |
| 1720 | } |
| 1721 | |
| 1722 | if (!justChangeSize) { /* update decorations */ |
| 1723 | awt_wm_setShellDecor(wdata, False); |
| 1724 | } |
| 1725 | } |
| 1726 | |
| 1727 | |
| 1728 | /* |
| 1729 | * Helper function for awt_wm_getInsetsFromProp. |
| 1730 | * Read property of type CARDINAL[4] = { left, right, top, bottom } |
| 1731 | */ |
| 1732 | static Boolean |
| 1733 | awt_wm_readInsetsArray(Window shell_win, Atom insets_property, |
| 1734 | int32_t *top, int32_t *left, int32_t *bottom, int32_t *right) |
| 1735 | { |
| 1736 | /* Request status */ |
| 1737 | int status; |
| 1738 | |
| 1739 | /* Returns of XGetWindowProperty */ |
| 1740 | Atom actual_type; |
| 1741 | int actual_format; |
| 1742 | unsigned long nitems; |
| 1743 | unsigned long bytes_after; |
| 1744 | long *insets = NULL; /* NB: 64 bit: Format 32 props are 'long' */ |
| 1745 | |
| 1746 | status = XGetWindowProperty (awt_display, shell_win, |
| 1747 | insets_property, 0, 4, False, XA_CARDINAL, |
| 1748 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 1749 | (unsigned char **)&insets); |
| 1750 | |
| 1751 | if (status != Success || insets == NULL) { |
| 1752 | DTRACE_PRINTLN("failed"); |
| 1753 | return False; |
| 1754 | } |
| 1755 | |
| 1756 | if (actual_type != XA_CARDINAL || actual_format != 32) { |
| 1757 | DTRACE_PRINTLN("type/format mismatch"); |
| 1758 | XFree(insets); |
| 1759 | return False; |
| 1760 | } |
| 1761 | |
| 1762 | *left = (int32_t)insets[0]; |
| 1763 | *right = (int32_t)insets[1]; |
| 1764 | *top = (int32_t)insets[2]; |
| 1765 | *bottom = (int32_t)insets[3]; |
| 1766 | XFree(insets); |
| 1767 | |
| 1768 | /* Order is that of java.awt.Insets.toString */ |
| 1769 | DTRACE_PRINTLN4("[top=%d,left=%d,bottom=%d,right=%d]", |
| 1770 | *top, *left, *bottom, *right); |
| 1771 | return True; |
| 1772 | } |
| 1773 | |
| 1774 | /* |
| 1775 | * If WM implements the insets property - fill insets with values |
| 1776 | * specified in that property. |
| 1777 | */ |
| 1778 | Boolean |
| 1779 | awt_wm_getInsetsFromProp(Window shell_win, |
| 1780 | int32_t *top, int32_t *left, int32_t *bottom, int32_t *right) |
| 1781 | { |
| 1782 | switch (awt_wm_getRunningWM()) { |
| 1783 | |
| 1784 | case ENLIGHTEN_WM: |
| 1785 | DTRACE_PRINT("WM: reading _E_FRAME_SIZE ... "); |
| 1786 | return awt_wm_readInsetsArray(shell_win, _XA_E_FRAME_SIZE, |
| 1787 | top, left, bottom, right); |
| 1788 | |
| 1789 | #if 0 |
| 1790 | /* |
| 1791 | * uwe: disabled for now, as KDE seems to supply bogus values |
| 1792 | * when we maximize iconified frame. Need to verify with KDE2.1. |
| 1793 | * NB: Also note, that "external" handles (e.g. in laptop decor) |
| 1794 | * are also included in the frame strut, which is probably not |
| 1795 | * what we want. |
| 1796 | */ |
| 1797 | case KDE2_WM: |
| 1798 | DTRACE_PRINT("WM: reading _KDE_NET_WM_FRAME_STRUT ... "); |
| 1799 | return awt_wm_readInsetsArray(shell_win, _XA_KDE_NET_WM_FRAME_STRUT, |
| 1800 | top, left, bottom, right); |
| 1801 | #endif |
| 1802 | |
| 1803 | default: |
| 1804 | return False; |
| 1805 | } |
| 1806 | } |
| 1807 | |
| 1808 | /* |
| 1809 | * XmNiconic and Map/UnmapNotify (that XmNiconic relies on) are |
| 1810 | * unreliable, since mapping changes can happen for a virtual desktop |
| 1811 | * switch or MacOS style shading that became quite popular under X as |
| 1812 | * well. Yes, it probably should not be this way, as it violates |
| 1813 | * ICCCM, but reality is that quite a lot of window managers abuse |
| 1814 | * mapping state. |
| 1815 | */ |
| 1816 | int |
| 1817 | awt_wm_getWMState(Window shell_win) |
| 1818 | { |
| 1819 | /* Request status */ |
| 1820 | int status; |
| 1821 | |
| 1822 | /* Returns of XGetWindowProperty */ |
| 1823 | Atom actual_type; |
| 1824 | int actual_format; |
| 1825 | unsigned long nitems; |
| 1826 | unsigned long bytes_after; |
| 1827 | long *data; /* NB: 64 bit: Format 32 props are 'long' */ |
| 1828 | |
| 1829 | int wm_state; |
| 1830 | |
| 1831 | status = XGetWindowProperty(awt_display, shell_win, |
| 1832 | XA_WM_STATE, 0, 1, False, XA_WM_STATE, |
| 1833 | &actual_type, &actual_format, &nitems, &bytes_after, |
| 1834 | (unsigned char **)&data); |
| 1835 | |
| 1836 | if (status != Success || data == NULL) { |
| 1837 | return WithdrawnState; |
| 1838 | } |
| 1839 | |
| 1840 | if (actual_type != XA_WM_STATE) { |
| 1841 | DTRACE_PRINTLN1("WM: WM_STATE(0x%x) - wrong type", shell_win); |
| 1842 | XFree(data); |
| 1843 | return WithdrawnState; |
| 1844 | } |
| 1845 | |
| 1846 | wm_state = (int)*data; |
| 1847 | XFree(data); |
| 1848 | return wm_state; |
| 1849 | } |
| 1850 | |
| 1851 | |
| 1852 | |
| 1853 | /*****************************************************************************\ |
| 1854 | * |
| 1855 | * Reading state from properties WM puts on our window ... |
| 1856 | * |
| 1857 | \*****************************************************************************/ |
| 1858 | |
| 1859 | /* |
| 1860 | * New "NET" WM spec: _NET_WM_STATE/Atom[] |
| 1861 | */ |
| 1862 | static jint |
| 1863 | awt_wm_getStateNet(Window shell_win) |
| 1864 | { |
| 1865 | Atom *net_wm_state; |
| 1866 | jint java_state; |
| 1867 | unsigned long nitems; |
| 1868 | unsigned long i; |
| 1869 | |
| 1870 | net_wm_state = awt_getAtomListProperty(shell_win, _XA_NET_WM_STATE, &nitems); |
| 1871 | if (nitems == 0) { |
| 1872 | DTRACE_PRINTLN("WM: _NET_WM_STATE = { }"); |
| 1873 | if (net_wm_state) { |
| 1874 | XFree(net_wm_state); |
| 1875 | } |
| 1876 | return java_awt_Frame_NORMAL; |
| 1877 | } |
| 1878 | #ifdef DEBUG |
| 1879 | DTRACE_PRINT("WM: "); |
| 1880 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 1881 | #endif |
| 1882 | |
| 1883 | java_state = java_awt_Frame_NORMAL; |
| 1884 | for (i = 0; i < nitems; ++i) { |
| 1885 | if (net_wm_state[i] == _XA_NET_WM_STATE_MAXIMIZED_VERT) { |
| 1886 | java_state |= java_awt_Frame_MAXIMIZED_VERT; |
| 1887 | } |
| 1888 | else if (net_wm_state[i] == _XA_NET_WM_STATE_MAXIMIZED_HORZ) { |
| 1889 | java_state |= java_awt_Frame_MAXIMIZED_HORIZ; |
| 1890 | } |
| 1891 | } |
| 1892 | XFree(net_wm_state); |
| 1893 | return java_state; |
| 1894 | } |
| 1895 | |
| 1896 | Boolean |
| 1897 | awt_wm_isStateNetHidden(Window shell_win) |
| 1898 | { |
| 1899 | Atom *net_wm_state; |
| 1900 | Boolean result = False; |
| 1901 | unsigned long nitems; |
| 1902 | unsigned long i; |
| 1903 | |
| 1904 | net_wm_state = awt_getAtomListProperty(shell_win, _XA_NET_WM_STATE, &nitems); |
| 1905 | if (nitems == 0) { |
| 1906 | DTRACE_PRINTLN("WM: _NET_WM_STATE = { }"); |
| 1907 | if (net_wm_state) { |
| 1908 | XFree(net_wm_state); |
| 1909 | } |
| 1910 | return False; |
| 1911 | } |
| 1912 | #ifdef DEBUG |
| 1913 | DTRACE_PRINT("WM: "); |
| 1914 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 1915 | #endif |
| 1916 | |
| 1917 | for (i = 0; i < nitems; ++i) { |
| 1918 | if (net_wm_state[i] == _XA_NET_WM_STATE_HIDDEN) { |
| 1919 | result = True; |
| 1920 | } |
| 1921 | } |
| 1922 | XFree(net_wm_state); |
| 1923 | return result; |
| 1924 | } |
| 1925 | |
| 1926 | /* |
| 1927 | * Similar code to getStateNet, to get layer state. |
| 1928 | */ |
| 1929 | static int |
| 1930 | awt_wm_getLayerNet(Window shell_win) |
| 1931 | { |
| 1932 | Atom *net_wm_state; |
| 1933 | int java_state; |
| 1934 | unsigned long nitems; |
| 1935 | unsigned long i; |
| 1936 | |
| 1937 | net_wm_state = awt_getAtomListProperty(shell_win, _XA_NET_WM_STATE, &nitems); |
| 1938 | if (nitems == 0) { |
| 1939 | DTRACE_PRINTLN("WM: _NET_WM_STATE = { }"); |
| 1940 | if (net_wm_state) { |
| 1941 | XFree(net_wm_state); |
| 1942 | } |
| 1943 | return LAYER_NORMAL; |
| 1944 | } |
| 1945 | #ifdef DEBUG |
| 1946 | DTRACE_PRINT("WM: "); |
| 1947 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 1948 | #endif |
| 1949 | |
| 1950 | java_state = LAYER_NORMAL; |
| 1951 | for (i = 0; i < nitems; ++i) { |
| 1952 | if (net_wm_state[i] == _XA_NET_WM_STATE_ABOVE) { |
| 1953 | java_state = LAYER_ALWAYS_ON_TOP; |
| 1954 | } |
| 1955 | } |
| 1956 | XFree(net_wm_state); |
| 1957 | return java_state; |
| 1958 | } |
| 1959 | |
| 1960 | /* |
| 1961 | * Old Gnome spec: _WIN_STATE/CARDINAL |
| 1962 | */ |
| 1963 | static jint |
| 1964 | awt_wm_getStateWin(Window shell_win) |
| 1965 | { |
| 1966 | long win_state; |
| 1967 | jint java_state; |
| 1968 | |
| 1969 | win_state = awt_getProperty32(shell_win, _XA_WIN_STATE, XA_CARDINAL); |
| 1970 | #ifdef DEBUG |
| 1971 | DTRACE_PRINT("WM: "); |
| 1972 | awt_wm_dtraceStateWin(win_state); |
| 1973 | #endif |
| 1974 | |
| 1975 | java_state = java_awt_Frame_NORMAL; |
| 1976 | if (win_state & WIN_STATE_MAXIMIZED_VERT) { |
| 1977 | java_state |= java_awt_Frame_MAXIMIZED_VERT; |
| 1978 | } |
| 1979 | if (win_state & WIN_STATE_MAXIMIZED_HORIZ) { |
| 1980 | java_state |= java_awt_Frame_MAXIMIZED_HORIZ; |
| 1981 | } |
| 1982 | return java_state; |
| 1983 | } |
| 1984 | |
| 1985 | /* |
| 1986 | * Code similar to getStateWin, to get layer state. |
| 1987 | */ |
| 1988 | static int |
| 1989 | awt_wm_getLayerWin(Window shell_win) |
| 1990 | { |
| 1991 | long win_state; |
| 1992 | jint java_state; |
| 1993 | |
| 1994 | win_state = awt_getProperty32(shell_win, _XA_WIN_LAYER, XA_CARDINAL); |
| 1995 | #ifdef DEBUG |
| 1996 | DTRACE_PRINT("WM: "); |
| 1997 | awt_wm_dtraceStateWin(win_state); |
| 1998 | #endif |
| 1999 | |
| 2000 | java_state = LAYER_NORMAL; |
| 2001 | if (win_state == WIN_LAYER_ONTOP) { |
| 2002 | java_state = LAYER_ALWAYS_ON_TOP; |
| 2003 | } |
| 2004 | return java_state; |
| 2005 | } |
| 2006 | |
| 2007 | |
| 2008 | static jint |
| 2009 | awt_wm_getExtendedState(Window shell_win) |
| 2010 | { |
| 2011 | if (awt_wm_doStateProtocolNet()) { |
| 2012 | return awt_wm_getStateNet(shell_win); |
| 2013 | } |
| 2014 | else if (awt_wm_doStateProtocolWin()) { |
| 2015 | return awt_wm_getStateWin(shell_win); |
| 2016 | } |
| 2017 | else { |
| 2018 | return java_awt_Frame_NORMAL; |
| 2019 | } |
| 2020 | } |
| 2021 | |
| 2022 | jint |
| 2023 | awt_wm_getState(struct FrameData *wdata) |
| 2024 | { |
| 2025 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2026 | jint java_state; |
| 2027 | |
| 2028 | DTRACE_PRINTLN2("WM: getState(0x%x/0x%x)", |
| 2029 | wdata->winData.shell, shell_win); |
| 2030 | |
| 2031 | if (shell_win == None) { |
| 2032 | DTRACE_PRINTLN("WM: no window, use wdata"); |
| 2033 | java_state = wdata->state; |
| 2034 | } |
| 2035 | else { |
| 2036 | int wm_state = awt_wm_getWMState(shell_win); |
| 2037 | if (wm_state == WithdrawnState) { |
| 2038 | DTRACE_PRINTLN("WM: window withdrawn, use wdata"); |
| 2039 | java_state = wdata->state; |
| 2040 | } |
| 2041 | else { |
| 2042 | #ifdef DEBUG |
| 2043 | DTRACE_PRINT("WM: "); |
| 2044 | awt_wm_dtraceWMState(wm_state); |
| 2045 | #endif |
| 2046 | if (wm_state == IconicState) { |
| 2047 | java_state = java_awt_Frame_ICONIFIED; |
| 2048 | } else { |
| 2049 | java_state = java_awt_Frame_NORMAL; |
| 2050 | } |
| 2051 | java_state |= awt_wm_getExtendedState(shell_win); |
| 2052 | } |
| 2053 | } |
| 2054 | |
| 2055 | #ifdef DEBUG |
| 2056 | DTRACE_PRINT("WM: "); |
| 2057 | awt_wm_dtraceStateJava(java_state); |
| 2058 | #endif |
| 2059 | |
| 2060 | return java_state; |
| 2061 | } |
| 2062 | |
| 2063 | |
| 2064 | |
| 2065 | /*****************************************************************************\ |
| 2066 | * |
| 2067 | * Notice window state change when WM changes a property on the window ... |
| 2068 | * |
| 2069 | \*****************************************************************************/ |
| 2070 | |
| 2071 | |
| 2072 | /* |
| 2073 | * Check if property change is a window state protocol message. |
| 2074 | * If it is - return True and return the new state in *pstate. |
| 2075 | */ |
| 2076 | Boolean |
| 2077 | awt_wm_isStateChange(struct FrameData *wdata, XPropertyEvent *e, jint *pstate) |
| 2078 | { |
| 2079 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2080 | Boolean is_state_change = False; |
| 2081 | int wm_state; |
| 2082 | |
| 2083 | if (!wdata->isShowing) { |
| 2084 | return False; |
| 2085 | } |
| 2086 | |
| 2087 | wm_state = awt_wm_getWMState(shell_win); |
| 2088 | if (wm_state == WithdrawnState) { |
| 2089 | return False; |
| 2090 | } |
| 2091 | |
| 2092 | if (e->atom == XA_WM_STATE) { |
| 2093 | is_state_change = True; |
| 2094 | } |
| 2095 | else if (e->atom == _XA_NET_WM_STATE) { |
| 2096 | is_state_change = awt_wm_doStateProtocolNet(); |
| 2097 | } |
| 2098 | else if (e->atom == _XA_WIN_STATE) { |
| 2099 | is_state_change = awt_wm_doStateProtocolWin(); |
| 2100 | } |
| 2101 | |
| 2102 | if (is_state_change) { |
| 2103 | #ifdef DEBUG |
| 2104 | Widget shell = wdata->winData.shell; |
| 2105 | char *name = XGetAtomName(XtDisplay(shell), e->atom); |
| 2106 | DTRACE_PRINTLN4("WM: PropertyNotify(0x%x/0x%x) %s %s", |
| 2107 | shell, XtWindow(shell), |
| 2108 | name != NULL ? name : "???", |
| 2109 | e->state == PropertyNewValue ? "changed" : "deleted"); |
| 2110 | if (name != NULL) { |
| 2111 | XFree(name); |
| 2112 | } |
| 2113 | DTRACE_PRINT("WM: "); |
| 2114 | awt_wm_dtraceWMState(wm_state); |
| 2115 | #endif |
| 2116 | if (wm_state == IconicState) { |
| 2117 | *pstate = java_awt_Frame_ICONIFIED; |
| 2118 | } else { |
| 2119 | *pstate = java_awt_Frame_NORMAL; |
| 2120 | } |
| 2121 | *pstate |= awt_wm_getExtendedState(shell_win); |
| 2122 | |
| 2123 | #ifdef DEBUG |
| 2124 | DTRACE_PRINT("WM: "); |
| 2125 | awt_wm_dtraceStateJava(*pstate); |
| 2126 | #endif |
| 2127 | } |
| 2128 | |
| 2129 | return is_state_change; |
| 2130 | } |
| 2131 | |
| 2132 | |
| 2133 | |
| 2134 | |
| 2135 | /*****************************************************************************\ |
| 2136 | * |
| 2137 | * Setting/changing window state ... |
| 2138 | * |
| 2139 | \*****************************************************************************/ |
| 2140 | |
| 2141 | /* |
| 2142 | * Request a state transition from a _NET supporting WM by sending |
| 2143 | * _NET_WM_STATE ClientMessage to root window. |
| 2144 | */ |
| 2145 | static void |
| 2146 | awt_wm_requestStateNet(struct FrameData *wdata, jint state) |
| 2147 | { |
| 2148 | Widget shell = wdata->winData.shell; |
| 2149 | Window shell_win = XtWindow(shell); |
| 2150 | XClientMessageEvent req; |
| 2151 | jint old_net_state; |
| 2152 | jint max_changed; |
| 2153 | |
| 2154 | /* must use awt_wm_setInitialStateNet for withdrawn windows */ |
| 2155 | DASSERT(wdata->isShowing); |
| 2156 | |
| 2157 | /* |
| 2158 | * We have to use toggle for maximization because of transitions |
| 2159 | * from maximization in one direction only to maximization in the |
| 2160 | * other direction only. |
| 2161 | */ |
| 2162 | old_net_state = awt_wm_getStateNet(shell_win); |
| 2163 | max_changed = (state ^ old_net_state) & java_awt_Frame_MAXIMIZED_BOTH; |
| 2164 | |
| 2165 | switch (max_changed) { |
| 2166 | case 0: |
| 2167 | DTRACE_PRINTLN("WM: requestStateNet - maximization unchanged"); |
| 2168 | return; |
| 2169 | |
| 2170 | case java_awt_Frame_MAXIMIZED_HORIZ: |
| 2171 | DTRACE_PRINTLN("WM: requestStateNet - toggling MAX_HORZ"); |
| 2172 | req.data.l[1] = _XA_NET_WM_STATE_MAXIMIZED_HORZ; |
| 2173 | req.data.l[2] = 0; |
| 2174 | break; |
| 2175 | |
| 2176 | case java_awt_Frame_MAXIMIZED_VERT: |
| 2177 | DTRACE_PRINTLN("WM: requestStateNet - toggling MAX_VERT"); |
| 2178 | req.data.l[1] = _XA_NET_WM_STATE_MAXIMIZED_VERT; |
| 2179 | req.data.l[2] = 0; |
| 2180 | break; |
| 2181 | |
| 2182 | default: /* both */ |
| 2183 | DTRACE_PRINTLN("WM: requestStateNet - toggling HORZ + VERT"); |
| 2184 | req.data.l[1] = _XA_NET_WM_STATE_MAXIMIZED_HORZ; |
| 2185 | req.data.l[2] = _XA_NET_WM_STATE_MAXIMIZED_VERT; |
| 2186 | break; |
| 2187 | } |
| 2188 | |
| 2189 | req.type = ClientMessage; |
| 2190 | req.window = XtWindow(shell); |
| 2191 | req.message_type = _XA_NET_WM_STATE; |
| 2192 | req.format = 32; |
| 2193 | req.data.l[0] = _NET_WM_STATE_TOGGLE; |
| 2194 | |
| 2195 | XSendEvent(XtDisplay(shell), RootWindowOfScreen(XtScreen(shell)), False, |
| 2196 | (SubstructureRedirectMask | SubstructureNotifyMask), |
| 2197 | (XEvent *)&req); |
| 2198 | } |
| 2199 | |
| 2200 | |
| 2201 | /* |
| 2202 | * Request state transition from a Gnome WM (_WIN protocol) by sending |
| 2203 | * _WIN_STATE ClientMessage to root window. |
| 2204 | */ |
| 2205 | static void |
| 2206 | awt_wm_requestStateWin(struct FrameData *wdata, jint state) |
| 2207 | { |
| 2208 | Widget shell = wdata->winData.shell; |
| 2209 | XClientMessageEvent req; |
| 2210 | long win_state; /* typeof(XClientMessageEvent.data.l) */ |
| 2211 | |
| 2212 | /* must use awt_wm_setInitialStateWin for withdrawn windows */ |
| 2213 | DASSERT(wdata->isShowing); |
| 2214 | |
| 2215 | win_state = 0; |
| 2216 | if (state & java_awt_Frame_MAXIMIZED_VERT) { |
| 2217 | win_state |= WIN_STATE_MAXIMIZED_VERT; |
| 2218 | } |
| 2219 | if (state & java_awt_Frame_MAXIMIZED_HORIZ) { |
| 2220 | win_state |= WIN_STATE_MAXIMIZED_HORIZ; |
| 2221 | } |
| 2222 | |
| 2223 | req.type = ClientMessage; |
| 2224 | req.window = XtWindow(shell); |
| 2225 | req.message_type = _XA_WIN_STATE; |
| 2226 | req.format = 32; |
| 2227 | req.data.l[0] = (WIN_STATE_MAXIMIZED_HORIZ | WIN_STATE_MAXIMIZED_VERT); |
| 2228 | req.data.l[1] = win_state; |
| 2229 | |
| 2230 | XSendEvent(XtDisplay(shell), RootWindowOfScreen(XtScreen(shell)), False, |
| 2231 | (SubstructureRedirectMask | SubstructureNotifyMask), |
| 2232 | (XEvent *)&req); |
| 2233 | } |
| 2234 | |
| 2235 | |
| 2236 | /* |
| 2237 | * Specify initial state for _NET supporting WM by setting |
| 2238 | * _NET_WM_STATE property on the window to the desired state before |
| 2239 | * mapping it. |
| 2240 | */ |
| 2241 | static void |
| 2242 | awt_wm_setInitialStateNet(struct FrameData *wdata, jint state) |
| 2243 | { |
| 2244 | Widget shell = wdata->winData.shell; |
| 2245 | Window shell_win = XtWindow(shell); |
| 2246 | Display *dpy = XtDisplay(shell); |
| 2247 | |
| 2248 | Atom *old_state; |
| 2249 | unsigned long nitems; |
| 2250 | |
| 2251 | /* must use awt_wm_requestStateNet for managed windows */ |
| 2252 | DASSERT(!wdata->isShowing); |
| 2253 | |
| 2254 | /* Be careful to not wipe out state bits we don't understand */ |
| 2255 | old_state = awt_getAtomListProperty(shell_win, _XA_NET_WM_STATE, &nitems); |
| 2256 | |
| 2257 | if (nitems == 0) { |
| 2258 | /* |
| 2259 | * Empty or absent _NET_WM_STATE - set a new one if necessary. |
| 2260 | */ |
| 2261 | Atom net_wm_state[AWT_NET_N_KNOWN_STATES]; |
| 2262 | |
| 2263 | if (old_state != NULL) { |
| 2264 | XFree(old_state); |
| 2265 | } |
| 2266 | |
| 2267 | if (state & java_awt_Frame_MAXIMIZED_VERT) { |
| 2268 | net_wm_state[nitems++] = _XA_NET_WM_STATE_MAXIMIZED_VERT; |
| 2269 | } |
| 2270 | if (state & java_awt_Frame_MAXIMIZED_HORIZ) { |
| 2271 | net_wm_state[nitems++] = _XA_NET_WM_STATE_MAXIMIZED_HORZ; |
| 2272 | } |
| 2273 | DASSERT(nitems <= AWT_NET_N_KNOWN_STATES); |
| 2274 | |
| 2275 | if (nitems == 0) { |
| 2276 | DTRACE_PRINTLN("WM: initial _NET_WM_STATE not necessary"); |
| 2277 | return; |
| 2278 | } |
| 2279 | |
| 2280 | #ifdef DEBUG |
| 2281 | DTRACE_PRINT("WM: setting initial "); |
| 2282 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 2283 | #endif |
| 2284 | XChangeProperty(dpy, shell_win, |
| 2285 | _XA_NET_WM_STATE, XA_ATOM, 32, PropModeReplace, |
| 2286 | (unsigned char *)net_wm_state, nitems); |
| 2287 | } |
| 2288 | else { |
| 2289 | /* |
| 2290 | * Tweak existing _NET_WM_STATE, preserving bits we don't use. |
| 2291 | */ |
| 2292 | jint want= state /* which flags we want */ |
| 2293 | & (java_awt_Frame_MAXIMIZED_HORIZ | java_awt_Frame_MAXIMIZED_VERT); |
| 2294 | |
| 2295 | jint has = 0; /* which flags the window already has */ |
| 2296 | int mode; /* property mode: replace/append */ |
| 2297 | |
| 2298 | Atom *new_state; /* new _net_wm_state value */ |
| 2299 | int new_nitems; |
| 2300 | unsigned long i; |
| 2301 | |
| 2302 | #ifdef DEBUG |
| 2303 | DTRACE_PRINT("WM: already has "); |
| 2304 | awt_wm_dtraceStateNet(old_state, nitems); |
| 2305 | #endif |
| 2306 | |
| 2307 | for (i = 0; i < nitems; ++i) { |
| 2308 | if (old_state[i] == _XA_NET_WM_STATE_MAXIMIZED_HORZ) { |
| 2309 | has |= java_awt_Frame_MAXIMIZED_HORIZ; |
| 2310 | } |
| 2311 | else if (old_state[i] == _XA_NET_WM_STATE_MAXIMIZED_VERT) { |
| 2312 | has |= java_awt_Frame_MAXIMIZED_VERT; |
| 2313 | } |
| 2314 | } |
| 2315 | |
| 2316 | if ((has ^ want) == 0) { |
| 2317 | DTRACE_PRINTLN("WM: no changes to _NET_WM_STATE necessary"); |
| 2318 | XFree(old_state); |
| 2319 | return; |
| 2320 | } |
| 2321 | |
| 2322 | new_nitems = 0; |
| 2323 | if (has == 0) { /* only adding flags */ |
| 2324 | new_state = calloc(AWT_NET_N_KNOWN_STATES, sizeof(Atom)); |
| 2325 | mode = PropModeAppend; |
| 2326 | } |
| 2327 | else { |
| 2328 | new_state = calloc(nitems + AWT_NET_N_KNOWN_STATES, sizeof(Atom)); |
| 2329 | mode = PropModeReplace; |
| 2330 | } |
| 2331 | |
| 2332 | if (has != 0) { /* copy existing flags */ |
| 2333 | DTRACE_PRINT("WM: "); |
| 2334 | for (i = 0; i < nitems; ++i) { |
| 2335 | if (old_state[i] == _XA_NET_WM_STATE_MAXIMIZED_HORZ) { |
| 2336 | if (want & java_awt_Frame_MAXIMIZED_HORIZ) { |
| 2337 | DTRACE_PRINT(" keep _HORZ"); |
| 2338 | } else { |
| 2339 | DTRACE_PRINT(" drop _HORZ"); |
| 2340 | continue; |
| 2341 | } |
| 2342 | } |
| 2343 | else if (old_state[i] == _XA_NET_WM_STATE_MAXIMIZED_VERT) { |
| 2344 | if (want & java_awt_Frame_MAXIMIZED_VERT) { |
| 2345 | DTRACE_PRINT(" keep _VERT"); |
| 2346 | } else { |
| 2347 | DTRACE_PRINT(" drop _VERT"); |
| 2348 | continue; |
| 2349 | } |
| 2350 | } |
| 2351 | new_state[new_nitems++] = old_state[i]; |
| 2352 | } |
| 2353 | } |
| 2354 | |
| 2355 | /* Add missing flags */ |
| 2356 | if ((want & java_awt_Frame_MAXIMIZED_HORIZ) |
| 2357 | && !(has & java_awt_Frame_MAXIMIZED_HORIZ)) |
| 2358 | { |
| 2359 | DTRACE_PRINT(" add _HORZ"); |
| 2360 | new_state[new_nitems] = _XA_NET_WM_STATE_MAXIMIZED_HORZ; |
| 2361 | ++new_nitems; |
| 2362 | } |
| 2363 | if ((want & java_awt_Frame_MAXIMIZED_VERT) |
| 2364 | && !(has & java_awt_Frame_MAXIMIZED_VERT)) |
| 2365 | { |
| 2366 | DTRACE_PRINT(" add _VERT"); |
| 2367 | new_state[new_nitems] = _XA_NET_WM_STATE_MAXIMIZED_VERT; |
| 2368 | ++new_nitems; |
| 2369 | } |
| 2370 | |
| 2371 | DTRACE_PRINTLN(mode == PropModeReplace ? |
| 2372 | " ... replacing" : " ... appending"); |
| 2373 | XChangeProperty(dpy, shell_win, |
| 2374 | _XA_NET_WM_STATE, XA_ATOM, 32, mode, |
| 2375 | (unsigned char *)new_state, new_nitems); |
| 2376 | XFree(old_state); |
| 2377 | XFree(new_state); |
| 2378 | } |
| 2379 | } |
| 2380 | |
| 2381 | |
| 2382 | /* |
| 2383 | * Specify initial state for a Gnome WM (_WIN protocol) by setting |
| 2384 | * WIN_STATE property on the window to the desired state before |
| 2385 | * mapping it. |
| 2386 | */ |
| 2387 | static void |
| 2388 | awt_wm_setInitialStateWin(struct FrameData *wdata, jint state) |
| 2389 | { |
| 2390 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2391 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2392 | long win_state, old_win_state; |
| 2393 | |
| 2394 | /* must use awt_wm_requestStateWin for managed windows */ |
| 2395 | DASSERT(!wdata->isShowing); |
| 2396 | |
| 2397 | /* Be careful to not wipe out state bits we don't understand */ |
| 2398 | win_state = awt_getProperty32(shell_win, _XA_WIN_STATE, XA_CARDINAL); |
| 2399 | old_win_state = win_state; |
| 2400 | #ifdef DEBUG |
| 2401 | if (win_state != 0) { |
| 2402 | DTRACE_PRINT("WM: already has "); |
| 2403 | awt_wm_dtraceStateWin(win_state); |
| 2404 | } |
| 2405 | #endif |
| 2406 | |
| 2407 | /* |
| 2408 | * In their stupid quest of reinventing every wheel, Gnome WM spec |
| 2409 | * have its own "minimized" hint (instead of using initial state |
| 2410 | * and WM_STATE hints). This is bogus, but, apparently, some WMs |
| 2411 | * pay attention. |
| 2412 | */ |
| 2413 | if (state & java_awt_Frame_ICONIFIED) { |
| 2414 | win_state |= WIN_STATE_MINIMIZED; |
| 2415 | } else { |
| 2416 | win_state &= ~WIN_STATE_MINIMIZED; |
| 2417 | } |
| 2418 | |
| 2419 | if (state & java_awt_Frame_MAXIMIZED_VERT) { |
| 2420 | win_state |= WIN_STATE_MAXIMIZED_VERT; |
| 2421 | } else { |
| 2422 | win_state &= ~WIN_STATE_MAXIMIZED_VERT; |
| 2423 | } |
| 2424 | |
| 2425 | if (state & java_awt_Frame_MAXIMIZED_HORIZ) { |
| 2426 | win_state |= WIN_STATE_MAXIMIZED_HORIZ; |
| 2427 | } else { |
| 2428 | win_state &= ~WIN_STATE_MAXIMIZED_HORIZ; |
| 2429 | } |
| 2430 | |
| 2431 | if (old_win_state ^ win_state) { |
| 2432 | #ifdef DEBUG |
| 2433 | DTRACE_PRINT("WM: setting initial "); |
| 2434 | awt_wm_dtraceStateWin(win_state); |
| 2435 | #endif |
| 2436 | XChangeProperty(dpy, shell_win, |
| 2437 | _XA_WIN_STATE, XA_CARDINAL, 32, PropModeReplace, |
| 2438 | (unsigned char *)&win_state, 1); |
| 2439 | } |
| 2440 | #ifdef DEBUG |
| 2441 | else { |
| 2442 | DTRACE_PRINTLN("WM: no changes to _WIN_STATE necessary"); |
| 2443 | } |
| 2444 | #endif |
| 2445 | } |
| 2446 | |
| 2447 | /* |
| 2448 | * Request a layer change from a _NET supporting WM by sending |
| 2449 | * _NET_WM_STATE ClientMessage to root window. |
| 2450 | */ |
| 2451 | static void |
| 2452 | awt_wm_requestLayerNet(struct FrameData *wdata, int state) |
| 2453 | { |
| 2454 | Widget shell = wdata->winData.shell; |
| 2455 | Window shell_win = XtWindow(shell); |
| 2456 | XClientMessageEvent req; |
| 2457 | int currentLayer; |
| 2458 | long cmd; |
| 2459 | |
| 2460 | /* must use awt_wm_setInitialLayerNet for withdrawn windows */ |
| 2461 | DASSERT(wdata->isShowing); |
| 2462 | |
| 2463 | currentLayer = awt_wm_getLayerNet(shell_win); |
| 2464 | if(state == currentLayer) { |
| 2465 | return; |
| 2466 | } |
| 2467 | cmd = currentLayer == LAYER_ALWAYS_ON_TOP && state == LAYER_NORMAL ? |
| 2468 | _NET_WM_STATE_REMOVE : |
| 2469 | currentLayer == LAYER_NORMAL && state == LAYER_ALWAYS_ON_TOP ? |
| 2470 | _NET_WM_STATE_ADD : |
| 2471 | _NET_WM_STATE_ADD; |
| 2472 | req.type = ClientMessage; |
| 2473 | req.window = XtWindow(shell); |
| 2474 | req.message_type = _XA_NET_WM_STATE; |
| 2475 | req.format = 32; |
| 2476 | req.data.l[0] = cmd; |
| 2477 | req.data.l[1] = _XA_NET_WM_STATE_ABOVE; |
| 2478 | req.data.l[2] = 0L; |
| 2479 | |
| 2480 | XSendEvent(XtDisplay(shell), RootWindowOfScreen(XtScreen(shell)), False, |
| 2481 | (SubstructureRedirectMask | SubstructureNotifyMask), |
| 2482 | (XEvent *)&req); |
| 2483 | } |
| 2484 | |
| 2485 | /* |
| 2486 | * Request a layer change from a Gnome WM (_WIN protocol) by sending |
| 2487 | * _WIN_LAYER ClientMessage to root window. |
| 2488 | */ |
| 2489 | static void |
| 2490 | awt_wm_requestLayerWin(struct FrameData *wdata, int state) |
| 2491 | { |
| 2492 | Widget shell = wdata->winData.shell; |
| 2493 | XClientMessageEvent req; |
| 2494 | Display *dpy = XtDisplay(shell); |
| 2495 | |
| 2496 | /* must use awt_wm_setInitialLayerWin for withdrawn windows */ |
| 2497 | DASSERT(wdata->isShowing); |
| 2498 | |
| 2499 | req.type = ClientMessage; |
| 2500 | req.window = XtWindow(shell); |
| 2501 | req.message_type = _XA_WIN_LAYER; |
| 2502 | req.format = 32; |
| 2503 | req.data.l[0] = state == LAYER_NORMAL ? WIN_LAYER_NORMAL : WIN_LAYER_ONTOP; |
| 2504 | req.data.l[1] = 0L; |
| 2505 | req.data.l[2] = 0L; |
| 2506 | |
| 2507 | XSendEvent(XtDisplay(shell), RootWindowOfScreen(XtScreen(shell)), False, |
| 2508 | /*(SubstructureRedirectMask |*/ |
| 2509 | SubstructureNotifyMask, |
| 2510 | (XEvent *)&req); |
| 2511 | } |
| 2512 | /* |
| 2513 | * Specify initial layer for _NET supporting WM by setting |
| 2514 | * _NET_WM_STATE property on the window to the desired state before |
| 2515 | * mapping it. |
| 2516 | * NB: looks like it doesn't have any effect. |
| 2517 | */ |
| 2518 | static void |
| 2519 | awt_wm_setInitialLayerNet(struct FrameData *wdata, int state) |
| 2520 | { |
| 2521 | Widget shell = wdata->winData.shell; |
| 2522 | Window shell_win = XtWindow(shell); |
| 2523 | Display *dpy = XtDisplay(shell); |
| 2524 | |
| 2525 | Atom *old_state; |
| 2526 | unsigned long nitems; |
| 2527 | Atom new_state = _XA_NET_WM_STATE_ABOVE; |
| 2528 | |
| 2529 | /* must use awt_wm_requestLayerNet for managed windows */ |
| 2530 | DASSERT(!wdata->isShowing); |
| 2531 | |
| 2532 | /* Be careful to not wipe out state bits we don't understand */ |
| 2533 | old_state = awt_getAtomListProperty(shell_win, _XA_NET_WM_STATE, &nitems); |
| 2534 | |
| 2535 | if (nitems == 0 && state != LAYER_ALWAYS_ON_TOP) { |
| 2536 | if (old_state != NULL) { |
| 2537 | XFree(old_state); |
| 2538 | } |
| 2539 | return; |
| 2540 | }else if( nitems == 0 && state == LAYER_ALWAYS_ON_TOP) { |
| 2541 | unsigned long data[2]; |
| 2542 | /* create new state */ |
| 2543 | if (old_state != NULL) { |
| 2544 | XFree(old_state); |
| 2545 | } |
| 2546 | nitems = 1; |
| 2547 | data[0] = new_state; |
| 2548 | data[1] = 0; |
| 2549 | XChangeProperty(dpy, shell_win, |
| 2550 | _XA_NET_WM_STATE, XA_ATOM, 32, PropModeReplace, |
| 2551 | (unsigned char *)data, nitems); |
| 2552 | XSync(dpy, False); |
| 2553 | }else { /* nitems > 0 */ |
| 2554 | unsigned long i; |
| 2555 | Boolean bShift = False; |
| 2556 | int mode; |
| 2557 | for(i = 0; i < nitems; i++) { |
| 2558 | if( bShift ) { |
| 2559 | old_state[i-1] = old_state[i]; |
| 2560 | }else if( old_state[i] == _XA_NET_WM_STATE_ABOVE ) { |
| 2561 | if(state == LAYER_ALWAYS_ON_TOP) { |
| 2562 | /* no change necessary */ |
| 2563 | XFree(old_state); |
| 2564 | return; |
| 2565 | }else{ |
| 2566 | /* wipe off this atom */ |
| 2567 | bShift = True; |
| 2568 | } |
| 2569 | } |
| 2570 | } |
| 2571 | |
| 2572 | if( bShift ) { |
| 2573 | /* atom was found and removed: change property */ |
| 2574 | mode = PropModeReplace; |
| 2575 | nitems--; |
| 2576 | }else if( state != LAYER_ALWAYS_ON_TOP ) { |
| 2577 | /* atom was not found and not needed */ |
| 2578 | XFree( old_state); |
| 2579 | return; |
| 2580 | }else { |
| 2581 | /* must add new atom */ |
| 2582 | mode = PropModeAppend; |
| 2583 | nitems = 1; |
| 2584 | } |
| 2585 | |
| 2586 | XChangeProperty(dpy, shell_win, |
| 2587 | _XA_NET_WM_STATE, XA_ATOM, 32, mode, |
| 2588 | mode == PropModeAppend ? |
| 2589 | (unsigned char *)(&new_state) : |
| 2590 | (unsigned char *)old_state, nitems); |
| 2591 | XFree(old_state); |
| 2592 | XSync(dpy, False); |
| 2593 | } |
| 2594 | } |
| 2595 | |
| 2596 | /* |
| 2597 | * Specify initial layer for a Gnome WM (_WIN protocol) by setting |
| 2598 | * WIN_LAYER property on the window to the desired state before |
| 2599 | * mapping it. |
| 2600 | */ |
| 2601 | static void |
| 2602 | awt_wm_setInitialLayerWin(struct FrameData *wdata, int state) |
| 2603 | { |
| 2604 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2605 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2606 | long win_state, old_win_state; |
| 2607 | int currentLayer; |
| 2608 | |
| 2609 | /* must use awt_wm_requestLayerWin for managed windows */ |
| 2610 | DASSERT(!wdata->isShowing); |
| 2611 | |
| 2612 | currentLayer = awt_wm_getLayerWin(shell_win); |
| 2613 | if( currentLayer == state ) { |
| 2614 | /* no change necessary */ |
| 2615 | return; |
| 2616 | } |
| 2617 | if( state == LAYER_ALWAYS_ON_TOP ) { |
| 2618 | win_state = WIN_LAYER_ONTOP; |
| 2619 | }else { |
| 2620 | win_state = WIN_LAYER_NORMAL; |
| 2621 | } |
| 2622 | |
| 2623 | XChangeProperty(dpy, shell_win, |
| 2624 | _XA_WIN_LAYER, XA_CARDINAL, 32, PropModeReplace, |
| 2625 | (unsigned char *)&win_state, 1); |
| 2626 | } |
| 2627 | |
| 2628 | void |
| 2629 | awt_wm_setExtendedState(struct FrameData *wdata, jint state) |
| 2630 | { |
| 2631 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2632 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2633 | |
| 2634 | #ifdef DEBUG |
| 2635 | DTRACE_PRINT2("WM: setExtendedState(0x%x/0x%x) ", |
| 2636 | wdata->winData.shell, shell_win); |
| 2637 | awt_wm_dtraceStateJava(state); |
| 2638 | #endif |
| 2639 | |
| 2640 | if (wdata->isShowing) { |
| 2641 | /* |
| 2642 | * If the window is managed by WM, we should send |
| 2643 | * ClientMessage requests. |
| 2644 | */ |
| 2645 | if (awt_wm_doStateProtocolNet()) { |
| 2646 | awt_wm_requestStateNet(wdata, state); |
| 2647 | } |
| 2648 | else if (awt_wm_doStateProtocolWin()) { |
| 2649 | awt_wm_requestStateWin(wdata, state); |
| 2650 | } |
| 2651 | XSync(dpy, False); |
| 2652 | } |
| 2653 | else { |
| 2654 | /* |
| 2655 | * If the window is withdrawn we should set necessary |
| 2656 | * properties directly to the window before mapping it. |
| 2657 | */ |
| 2658 | if (awt_wm_doStateProtocolNet()) { |
| 2659 | awt_wm_setInitialStateNet(wdata, state); |
| 2660 | } |
| 2661 | else if (awt_wm_doStateProtocolWin()) { |
| 2662 | awt_wm_setInitialStateWin(wdata, state); |
| 2663 | } |
| 2664 | #if 1 |
| 2665 | /* |
| 2666 | * Purge KWM bits. |
| 2667 | * Not really tested with KWM, only with WindowMaker. |
| 2668 | */ |
| 2669 | XDeleteProperty(dpy, shell_win, XA_KWM_WIN_ICONIFIED); |
| 2670 | XDeleteProperty(dpy, shell_win, XA_KWM_WIN_MAXIMIZED); |
| 2671 | #endif /* 1 */ |
| 2672 | } |
| 2673 | } |
| 2674 | |
| 2675 | static Boolean |
| 2676 | awt_wm_supportsLayersNet() { |
| 2677 | Boolean supported = awt_wm_doStateProtocolNet(); |
| 2678 | |
| 2679 | /* |
| 2680 | In fact, WM may report this not supported but do support. |
| 2681 | */ |
| 2682 | supported &= awt_wm_checkProtocol(_XA_NET_SUPPORTED, _XA_NET_WM_STATE_ABOVE); |
| 2683 | return supported; |
| 2684 | } |
| 2685 | |
| 2686 | static Boolean |
| 2687 | awt_wm_supportsLayersWin() { |
| 2688 | Boolean supported = awt_wm_doStateProtocolWin(); |
| 2689 | /* |
| 2690 | * In fact, WM may report this supported but do not support. |
| 2691 | */ |
| 2692 | supported &= awt_wm_checkProtocol(_XA_WIN_PROTOCOLS, _XA_WIN_LAYER); |
| 2693 | return supported; |
| 2694 | } |
| 2695 | |
| 2696 | void |
| 2697 | awt_wm_updateAlwaysOnTop(struct FrameData *wdata, jboolean bLayerState) { |
| 2698 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2699 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2700 | int layerState = bLayerState ? LAYER_ALWAYS_ON_TOP : LAYER_NORMAL; |
| 2701 | |
| 2702 | if (wdata->isShowing) { |
| 2703 | /** |
| 2704 | We don't believe anyone, and now send both ClientMessage requests. |
| 2705 | And eg Metacity under RH 6.1 required both to work. |
| 2706 | **/ |
| 2707 | awt_wm_requestLayerNet(wdata, layerState); |
| 2708 | awt_wm_requestLayerWin(wdata, layerState); |
| 2709 | } else { |
| 2710 | /** |
| 2711 | We don't believe anyone, and now set both atoms. |
| 2712 | And eg Metacity under RH 6.1 required both to work. |
| 2713 | **/ |
| 2714 | awt_wm_setInitialLayerNet(wdata, layerState); |
| 2715 | awt_wm_setInitialLayerWin(wdata, layerState); |
| 2716 | } |
| 2717 | XSync(dpy, False); |
| 2718 | } |
| 2719 | |
| 2720 | /* |
| 2721 | * Work around for 4775545. _NET version. |
| 2722 | */ |
| 2723 | static void |
| 2724 | awt_wm_unshadeKludgeNet(struct FrameData *wdata) |
| 2725 | { |
| 2726 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2727 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2728 | Atom *net_wm_state; |
| 2729 | Boolean shaded; |
| 2730 | unsigned long nitems; |
| 2731 | unsigned long i; |
| 2732 | |
| 2733 | net_wm_state = awt_getAtomListProperty(shell_win, |
| 2734 | _XA_NET_WM_STATE, &nitems); |
| 2735 | if (nitems == 0) { |
| 2736 | DTRACE_PRINTLN("WM: _NET_WM_STATE = { }"); |
| 2737 | if (net_wm_state) { |
| 2738 | XFree(net_wm_state); |
| 2739 | } |
| 2740 | return; |
| 2741 | } |
| 2742 | #ifdef DEBUG |
| 2743 | DTRACE_PRINT("WM: "); |
| 2744 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 2745 | #endif |
| 2746 | |
| 2747 | shaded = False; |
| 2748 | for (i = 0; i < nitems; ++i) { |
| 2749 | if (net_wm_state[i] == _XA_NET_WM_STATE_SHADED) { |
| 2750 | shaded = True; |
| 2751 | break; |
| 2752 | } |
| 2753 | } |
| 2754 | |
| 2755 | if (!shaded) { |
| 2756 | DTRACE_PRINTLN("WM: not _SHADED, no workaround necessary"); |
| 2757 | return; |
| 2758 | } |
| 2759 | |
| 2760 | DTRACE_PRINTLN("WM: removing _SHADED"); |
| 2761 | ++i; /* skip _SHADED */ |
| 2762 | while (i < nitems) { /* copy the rest */ |
| 2763 | net_wm_state[i-1] = net_wm_state[i]; |
| 2764 | ++i; |
| 2765 | } |
| 2766 | --nitems; /* _SHADED has been removed */ |
| 2767 | |
| 2768 | #ifdef DEBUG |
| 2769 | DTRACE_PRINT("WM: "); |
| 2770 | awt_wm_dtraceStateNet(net_wm_state, nitems); |
| 2771 | #endif |
| 2772 | |
| 2773 | WITH_XERROR_HANDLER(xerror_verify_change_property); |
| 2774 | { |
| 2775 | XChangeProperty(dpy, shell_win, |
| 2776 | _XA_NET_WM_STATE, XA_ATOM, 32, PropModeReplace, |
| 2777 | (unsigned char *)net_wm_state, nitems); |
| 2778 | } |
| 2779 | RESTORE_XERROR_HANDLER; |
| 2780 | |
| 2781 | if (xerror_code != Success) { |
| 2782 | DTRACE_PRINTLN1("WM: XChangeProperty failed, error = %d", |
| 2783 | xerror_code); |
| 2784 | } |
| 2785 | |
| 2786 | XFree(net_wm_state); |
| 2787 | } |
| 2788 | |
| 2789 | |
| 2790 | /* |
| 2791 | * Work around for 4775545. _WIN version. |
| 2792 | */ |
| 2793 | static void |
| 2794 | awt_wm_unshadeKludgeWin(struct FrameData *wdata) |
| 2795 | { |
| 2796 | Display *dpy = XtDisplay(wdata->winData.shell); |
| 2797 | Window shell_win = XtWindow(wdata->winData.shell); |
| 2798 | long win_state; |
| 2799 | |
| 2800 | win_state = awt_getProperty32(shell_win, _XA_WIN_STATE, XA_CARDINAL); |
| 2801 | #ifdef DEBUG |
| 2802 | DTRACE_PRINT("WM: "); |
| 2803 | awt_wm_dtraceStateWin(win_state); |
| 2804 | #endif |
| 2805 | |
| 2806 | if ((win_state & WIN_STATE_SHADED) == 0) { |
| 2807 | DTRACE_PRINTLN("WM: not _SHADED, no workaround necessary"); |
| 2808 | return; |
| 2809 | } |
| 2810 | |
| 2811 | win_state &= ~WIN_STATE_SHADED; |
| 2812 | XChangeProperty(dpy, shell_win, |
| 2813 | _XA_WIN_STATE, XA_CARDINAL, 32, PropModeReplace, |
| 2814 | (unsigned char *)&win_state, 1); |
| 2815 | } |
| 2816 | |
| 2817 | |
| 2818 | /* |
| 2819 | * Work around for 4775545. |
| 2820 | * |
| 2821 | * If WM exits while the top-level is shaded, the shaded hint remains |
| 2822 | * on the top-level properties. When WM restarts and sees the shaded |
| 2823 | * window it can reparent it into a "pre-shaded" decoration frame |
| 2824 | * (Metacity does), and our insets logic will go crazy, b/c it will |
| 2825 | * see a huge nagative bottom inset. There's no clean solution for |
| 2826 | * this, so let's just be weasels and drop the shaded hint if we |
| 2827 | * detect that WM exited. NB: we are in for a race condition with WM |
| 2828 | * restart here. NB2: e.g. WindowMaker saves the state in a private |
| 2829 | * property that this code knows nothing about, so this workaround is |
| 2830 | * not effective; other WMs might play similar tricks. |
| 2831 | */ |
| 2832 | void |
| 2833 | awt_wm_unshadeKludge(struct FrameData *wdata) |
| 2834 | { |
| 2835 | DTRACE_PRINTLN("WM: unshade kludge"); |
| 2836 | DASSERT(wdata->isShowing); |
| 2837 | |
| 2838 | if (awt_wm_doStateProtocolNet()) { |
| 2839 | awt_wm_unshadeKludgeNet(wdata); |
| 2840 | } |
| 2841 | else if (awt_wm_doStateProtocolWin()) { |
| 2842 | awt_wm_unshadeKludgeWin(wdata); |
| 2843 | } |
| 2844 | #ifdef DEBUG |
| 2845 | else { |
| 2846 | DTRACE_PRINTLN("WM: not a _NET or _WIN supporting WM"); |
| 2847 | } |
| 2848 | #endif |
| 2849 | |
| 2850 | XSync(XtDisplay(wdata->winData.shell), False); |
| 2851 | } |
| 2852 | |
| 2853 | |
| 2854 | void |
| 2855 | awt_wm_init(void) |
| 2856 | { |
| 2857 | static Boolean inited = False; |
| 2858 | if (inited) { |
| 2859 | return; |
| 2860 | } |
| 2861 | |
| 2862 | awt_wm_initAtoms(); |
| 2863 | awt_wm_getRunningWM(); |
| 2864 | inited = True; |
| 2865 | } |
| 2866 | |
| 2867 | Boolean awt_wm_supportsAlwaysOnTop() { |
| 2868 | return awt_wm_supportsLayersNet() || awt_wm_supportsLayersWin(); |
| 2869 | } |