1 /*
2 * Copyright (c) 2003, 2008, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26
27 /**
28 * Ported from awt_wm.c, SCCS v1.11, author Valeriy Ushakov
29 * Author: Denis Mikhalkin
30 */
31 package sun.awt.X11;
32
33 import sun.misc.Unsafe;
34 import java.awt.Insets;
35 import java.awt.Frame;
36 import java.awt.Rectangle;
37 import java.util.Collection;
38 import java.util.HashMap;
39 import java.util.LinkedList;
40 import java.util.regex.Matcher;
41 import java.util.regex.Pattern;
42 import sun.util.logging.PlatformLogger;
43
44
45 /**
46 * Class incapsulating knowledge about window managers in general
47 * Descendants should provide some information about specific window manager.
48 */
49 final class XWM
50 {
51
52 private final static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XWM");
53 private final static PlatformLogger insLog = PlatformLogger.getLogger("sun.awt.X11.insets.XWM");
54 private final static PlatformLogger stateLog = PlatformLogger.getLogger("sun.awt.X11.states.XWM");
55
56 static final XAtom XA_MWM_HINTS = new XAtom();
57
58 private static Unsafe unsafe = XlibWrapper.unsafe;
59
60
61 /* Good old ICCCM */
62 static XAtom XA_WM_STATE = new XAtom();
63
64
65 XAtom XA_UTF8_STRING = XAtom.get("UTF8_STRING"); /* like STRING but encoding is UTF-8 */
66
67 /* Currently we only care about max_v and max_h in _NET_WM_STATE */
68 final static int AWT_NET_N_KNOWN_STATES=2;
69
70 /* Enlightenment */
71 final static XAtom XA_E_FRAME_SIZE = new XAtom();
72
73 /* KWin (KDE2) */
74 final static XAtom XA_KDE_NET_WM_FRAME_STRUT = new XAtom();
75
76 /* KWM (KDE 1.x) OBSOLETE??? */
77 final static XAtom XA_KWM_WIN_ICONIFIED = new XAtom();
78 final static XAtom XA_KWM_WIN_MAXIMIZED = new XAtom();
79
80 /* OpenLook */
81 final static XAtom XA_OL_DECOR_DEL = new XAtom();
82 final static XAtom XA_OL_DECOR_HEADER = new XAtom();
83 final static XAtom XA_OL_DECOR_RESIZE = new XAtom();
84 final static XAtom XA_OL_DECOR_PIN = new XAtom();
85 final static XAtom XA_OL_DECOR_CLOSE = new XAtom();
86
87 /* EWMH */
88 final static XAtom XA_NET_FRAME_EXTENTS = new XAtom();
89 final static XAtom XA_NET_REQUEST_FRAME_EXTENTS = new XAtom();
90
91 final static int
92 UNDETERMINED_WM = 1,
93 NO_WM = 2,
94 OTHER_WM = 3,
95 OPENLOOK_WM = 4,
96 MOTIF_WM = 5,
97 CDE_WM = 6,
98 ENLIGHTEN_WM = 7,
99 KDE2_WM = 8,
100 SAWFISH_WM = 9,
101 ICE_WM = 10,
102 METACITY_WM = 11,
103 COMPIZ_WM = 12,
104 LG3D_WM = 13,
105 CWM_WM = 14,
106 MUTTER_WM = 15;
107 public String toString() {
108 switch (WMID) {
109 case NO_WM:
110 return "NO WM";
111 case OTHER_WM:
112 return "Other WM";
113 case OPENLOOK_WM:
114 return "OPENLOOK";
115 case MOTIF_WM:
116 return "MWM";
117 case CDE_WM:
118 return "DTWM";
119 case ENLIGHTEN_WM:
120 return "Enlightenment";
121 case KDE2_WM:
122 return "KWM2";
123 case SAWFISH_WM:
124 return "Sawfish";
125 case ICE_WM:
126 return "IceWM";
127 case METACITY_WM:
128 return "Metacity";
129 case COMPIZ_WM:
130 return "Compiz";
131 case LG3D_WM:
132 return "LookingGlass";
133 case CWM_WM:
134 return "CWM";
135 case MUTTER_WM:
136 return "Mutter";
137 case UNDETERMINED_WM:
138 default:
139 return "Undetermined WM";
140 }
141 }
142
143
144 int WMID;
145 static final Insets zeroInsets = new Insets(0, 0, 0, 0);
146 static final Insets defaultInsets = new Insets(25, 5, 5, 5);
147
148 XWM(int WMID) {
149 this.WMID = WMID;
150 initializeProtocols();
151 if (log.isLoggable(PlatformLogger.FINE)) log.fine("Window manager: " + toString());
152 }
153 int getID() {
154 return WMID;
155 }
156
157
158 static Insets normalize(Insets insets) {
159 if (insets.top > 64 || insets.top < 0) {
160 insets.top = 28;
161 }
162 if (insets.left > 32 || insets.left < 0) {
163 insets.left = 6;
164 }
165 if (insets.right > 32 || insets.right < 0) {
166 insets.right = 6;
167 }
168 if (insets.bottom > 32 || insets.bottom < 0) {
169 insets.bottom = 6;
170 }
171 return insets;
172 }
173
174 static XNETProtocol g_net_protocol = null;
175 static XWINProtocol g_win_protocol = null;
176 static boolean isNetWMName(String name) {
177 if (g_net_protocol != null) {
178 return g_net_protocol.isWMName(name);
179 } else {
180 return false;
181 }
182 }
183
184 static void initAtoms() {
185 final Object[][] atomInitList ={
186 { XA_WM_STATE, "WM_STATE" },
187
188 { XA_KDE_NET_WM_FRAME_STRUT, "_KDE_NET_WM_FRAME_STRUT" },
189
190 { XA_E_FRAME_SIZE, "_E_FRAME_SIZE" },
191
192 { XA_KWM_WIN_ICONIFIED, "KWM_WIN_ICONIFIED" },
193 { XA_KWM_WIN_MAXIMIZED, "KWM_WIN_MAXIMIZED" },
194
195 { XA_OL_DECOR_DEL, "_OL_DECOR_DEL" },
196 { XA_OL_DECOR_HEADER, "_OL_DECOR_HEADER" },
197 { XA_OL_DECOR_RESIZE, "_OL_DECOR_RESIZE" },
198 { XA_OL_DECOR_PIN, "_OL_DECOR_PIN" },
199 { XA_OL_DECOR_CLOSE, "_OL_DECOR_CLOSE" },
200 { XA_MWM_HINTS, "_MOTIF_WM_HINTS" },
201 { XA_NET_FRAME_EXTENTS, "_NET_FRAME_EXTENTS" },
202 { XA_NET_REQUEST_FRAME_EXTENTS, "_NET_REQUEST_FRAME_EXTENTS" },
203 };
204
205 String[] names = new String[atomInitList.length];
206 for (int index = 0; index < names.length; index++) {
207 names[index] = (String)atomInitList[index][1];
208 }
209
210 int atomSize = XAtom.getAtomSize();
211 long atoms = unsafe.allocateMemory(names.length*atomSize);
212 XToolkit.awtLock();
213 try {
214 int status = XlibWrapper.XInternAtoms(XToolkit.getDisplay(), names, false, atoms);
215 if (status == 0) {
216 return;
217 }
218 for (int atom = 0, atomPtr = 0; atom < names.length; atom++, atomPtr += atomSize) {
219 ((XAtom)(atomInitList[atom][0])).setValues(XToolkit.getDisplay(), names[atom], XAtom.getAtom(atoms + atomPtr));
220 }
221 } finally {
222 XToolkit.awtUnlock();
223 unsafe.freeMemory(atoms);
224 }
225 }
226
227 /*
228 * MUST BE CALLED UNDER AWTLOCK.
229 *
230 * If *any* window manager is running?
231 *
232 * According to ICCCM 2.0 section 4.3.
233 * WM will acquire ownership of a selection named WM_Sn, where n is
234 * the screen number.
235 *
236 * No selection owner, but, perhaps it is not ICCCM compliant WM
237 * (e.g. CDE/Sawfish).
238 * Try selecting for SubstructureRedirect, that only one client
239 * can select for, and if the request fails, than some other WM is
240 * already running.
241 *
242 * We also treat eXcursion as NO_WM.
243 */
244 private static boolean isNoWM() {
245 /*
246 * Quick checks for specific servers.
247 */
248 String vendor_string = XlibWrapper.ServerVendor(XToolkit.getDisplay());
249 if (vendor_string.indexOf("eXcursion") != -1) {
250 /*
251 * Use NO_WM since in all other aspects eXcursion is like not
252 * having a window manager running. I.e. it does not reparent
253 * top level shells.
254 */
255 if (insLog.isLoggable(PlatformLogger.FINE)) {
256 insLog.finer("eXcursion means NO_WM");
257 }
258 return true;
259 }
260
261 XSetWindowAttributes substruct = new XSetWindowAttributes();
262 try {
263 /*
264 * Let's check an owner of WM_Sn selection for the default screen.
265 */
266 final long default_screen_number =
267 XlibWrapper.DefaultScreen(XToolkit.getDisplay());
268 final String selection_name = "WM_S" + default_screen_number;
269
270 long selection_owner =
271 XlibWrapper.XGetSelectionOwner(XToolkit.getDisplay(),
272 XAtom.get(selection_name).getAtom());
273 if (insLog.isLoggable(PlatformLogger.FINE)) {
274 insLog.finer("selection owner of " + selection_name
275 + " is " + selection_owner);
276 }
277
278 if (selection_owner != XConstants.None) {
279 return false;
280 }
281
282 winmgr_running = false;
283 substruct.set_event_mask(XConstants.SubstructureRedirectMask);
284
285 XToolkit.WITH_XERROR_HANDLER(detectWMHandler);
286 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),
287 XToolkit.getDefaultRootWindow(),
288 XConstants.CWEventMask,
289 substruct.pData);
290 XToolkit.RESTORE_XERROR_HANDLER();
291
292 /*
293 * If no WM is running then our selection for SubstructureRedirect
294 * succeeded and needs to be undone (hey we are *not* a WM ;-).
295 */
296 if (!winmgr_running) {
297 substruct.set_event_mask(0);
298 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),
299 XToolkit.getDefaultRootWindow(),
300 XConstants.CWEventMask,
301 substruct.pData);
302 if (insLog.isLoggable(PlatformLogger.FINE)) {
303 insLog.finer("It looks like there is no WM thus NO_WM");
304 }
305 }
306
307 return !winmgr_running;
308 } finally {
309 substruct.dispose();
310 }
311 }
312
313 static XAtom XA_ENLIGHTENMENT_COMMS = new XAtom("ENLIGHTENMENT_COMMS", false);
314 /*
315 * Helper function for isEnlightenment().
316 * Enlightenment uses STRING property for its comms window id. Gaaa!
317 * The property is ENLIGHTENMENT_COMMS, STRING/8 and the string format
318 * is "WINID %8x". Gee, I haven't been using scanf for *ages*... :-)
319 */
320 static long getECommsWindowIDProperty(long window) {
321
322 if (!XA_ENLIGHTENMENT_COMMS.isInterned()) {
323 return 0;
324 }
325
326 WindowPropertyGetter getter =
327 new WindowPropertyGetter(window, XA_ENLIGHTENMENT_COMMS, 0, 14, false,
328 XAtom.XA_STRING);
329 try {
330 int status = getter.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance());
331 if (status != XConstants.Success || getter.getData() == 0) {
332 return 0;
333 }
334
335 if (getter.getActualType() != XAtom.XA_STRING
336 || getter.getActualFormat() != 8
337 || getter.getNumberOfItems() != 14 || getter.getBytesAfter() != 0)
338 {
339 return 0;
340 }
341
342 // Convert data to String, ASCII
343 byte[] bytes = XlibWrapper.getStringBytes(getter.getData());
344 String id = new String(bytes);
345
346 log.finer("ENLIGHTENMENT_COMMS is " + id);
347
348 // Parse WINID
349 Pattern winIdPat = Pattern.compile("WINID\\s+(\\p{XDigit}{0,8})");
350 try {
351 Matcher match = winIdPat.matcher(id);
352 if (match.matches()) {
353 log.finest("Match group count: " + match.groupCount());
354 String longId = match.group(1);
355 log.finest("Match group 1 " + longId);
356 long winid = Long.parseLong(longId, 16);
357 log.finer("Enlightenment communication window " + winid);
358 return winid;
359 } else {
360 log.finer("ENLIGHTENMENT_COMMS has wrong format");
361 return 0;
362 }
363 } catch (Exception e) {
364 if (log.isLoggable(PlatformLogger.FINER)) {
365 e.printStackTrace();
366 }
367 return 0;
368 }
369 } finally {
370 getter.dispose();
371 }
372 }
373
374 /*
375 * Is Enlightenment WM running? Congruent to awt_wm_checkAnchor, but
376 * uses STRING property peculiar to Enlightenment.
377 */
378 static boolean isEnlightenment() {
379
380 long root_xref = getECommsWindowIDProperty(XToolkit.getDefaultRootWindow());
381 if (root_xref == 0) {
382 return false;
383 }
384
385 long self_xref = getECommsWindowIDProperty(root_xref);
386 if (self_xref != root_xref) {
387 return false;
388 }
389
390 return true;
391 }
392
393 /*
394 * Is CDE running?
395 *
396 * XXX: This is hairy... CDE is MWM as well. It seems we simply test
397 * for default setup and will be bitten if user changes things...
398 *
399 * Check for _DT_SM_WINDOW_INFO(_DT_SM_WINDOW_INFO) on root. Take the
400 * second element of the property and check for presence of
401 * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window.
402 *
403 * XXX: Any header that defines this structures???
404 */
405 static final XAtom XA_DT_SM_WINDOW_INFO = new XAtom("_DT_SM_WINDOW_INFO", false);
406 static final XAtom XA_DT_SM_STATE_INFO = new XAtom("_DT_SM_STATE_INFO", false);
407 static boolean isCDE() {
408
409 if (!XA_DT_SM_WINDOW_INFO.isInterned()) {
410 log.finer("{0} is not interned", XA_DT_SM_WINDOW_INFO);
411 return false;
412 }
413
414 WindowPropertyGetter getter =
415 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
416 XA_DT_SM_WINDOW_INFO, 0, 2,
417 false, XA_DT_SM_WINDOW_INFO);
418 try {
419 int status = getter.execute();
420 if (status != XConstants.Success || getter.getData() == 0) {
421 log.finer("Getting of _DT_SM_WINDOW_INFO is not successfull");
422 return false;
423 }
424 if (getter.getActualType() != XA_DT_SM_WINDOW_INFO.getAtom()
425 || getter.getActualFormat() != 32
426 || getter.getNumberOfItems() != 2 || getter.getBytesAfter() != 0)
427 {
428 log.finer("Wrong format of _DT_SM_WINDOW_INFO");
429 return false;
430 }
431
432 long wmwin = Native.getWindow(getter.getData(), 1); //unsafe.getInt(getter.getData()+4);
433
434 if (wmwin == 0) {
435 log.fine("WARNING: DT_SM_WINDOW_INFO exists but returns zero windows");
436 return false;
437 }
438
439 /* Now check that this window has _DT_SM_STATE_INFO (ignore contents) */
440 if (!XA_DT_SM_STATE_INFO.isInterned()) {
441 log.finer("{0} is not interned", XA_DT_SM_STATE_INFO);
442 return false;
443 }
444 WindowPropertyGetter getter2 =
445 new WindowPropertyGetter(wmwin, XA_DT_SM_STATE_INFO, 0, 1,
446 false, XA_DT_SM_STATE_INFO);
447 try {
448 status = getter2.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance());
449
450
451 if (status != XConstants.Success || getter2.getData() == 0) {
452 log.finer("Getting of _DT_SM_STATE_INFO is not successfull");
453 return false;
454 }
455 if (getter2.getActualType() != XA_DT_SM_STATE_INFO.getAtom()
456 || getter2.getActualFormat() != 32)
457 {
458 log.finer("Wrong format of _DT_SM_STATE_INFO");
459 return false;
460 }
461
462 return true;
463 } finally {
464 getter2.dispose();
465 }
466 } finally {
467 getter.dispose();
468 }
469 }
470
471 /*
472 * Is MWM running? (Note that CDE will test positive as well).
473 *
474 * Check for _MOTIF_WM_INFO(_MOTIF_WM_INFO) on root. Take the
475 * second element of the property and check for presence of
476 * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window.
477 */
478 static final XAtom XA_MOTIF_WM_INFO = new XAtom("_MOTIF_WM_INFO", false);
479 static final XAtom XA_DT_WORKSPACE_CURRENT = new XAtom("_DT_WORKSPACE_CURRENT", false);
480 static boolean isMotif() {
481
482 if (!(XA_MOTIF_WM_INFO.isInterned()/* && XA_DT_WORKSPACE_CURRENT.isInterned()*/) ) {
483 return false;
484 }
485
486 WindowPropertyGetter getter =
487 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
488 XA_MOTIF_WM_INFO, 0,
489 MWMConstants.PROP_MOTIF_WM_INFO_ELEMENTS,
490 false, XA_MOTIF_WM_INFO);
491 try {
492 int status = getter.execute();
493
494 if (status != XConstants.Success || getter.getData() == 0) {
495 return false;
496 }
497
498 if (getter.getActualType() != XA_MOTIF_WM_INFO.getAtom()
499 || getter.getActualFormat() != 32
500 || getter.getNumberOfItems() != MWMConstants.PROP_MOTIF_WM_INFO_ELEMENTS
501 || getter.getBytesAfter() != 0)
502 {
503 return false;
504 }
505
506 long wmwin = Native.getLong(getter.getData(), 1);
507 if (wmwin != 0) {
508 if (XA_DT_WORKSPACE_CURRENT.isInterned()) {
509 /* Now check that this window has _DT_WORKSPACE_CURRENT */
510 XAtom[] curws = XA_DT_WORKSPACE_CURRENT.getAtomListProperty(wmwin);
511 if (curws.length == 0) {
512 return false;
513 }
514 return true;
515 } else {
516 // No DT_WORKSPACE, however in our tests MWM sometimes can be without desktop -
517 // and that is still MWM. So simply check for the validity of this window
518 // (through WM_STATE property).
519 WindowPropertyGetter state_getter =
520 new WindowPropertyGetter(wmwin,
521 XA_WM_STATE,
522 0, 1, false,
523 XA_WM_STATE);
524 try {
525 if (state_getter.execute() == XConstants.Success &&
526 state_getter.getData() != 0 &&
527 state_getter.getActualType() == XA_WM_STATE.getAtom())
528 {
529 return true;
530 }
531 } finally {
532 state_getter.dispose();
533 }
534 }
535 }
536 } finally {
537 getter.dispose();
538 }
539 return false;
540 }
541
542 /*
543 * Is Sawfish running?
544 */
545 static boolean isSawfish() {
546 return isNetWMName("Sawfish");
547 }
548
549 /*
550 * Is KDE2 (KWin) running?
551 */
552 static boolean isKDE2() {
553 return isNetWMName("KWin");
554 }
555
556 static boolean isCompiz() {
557 return isNetWMName("compiz");
558 }
559
560 static boolean isLookingGlass() {
561 return isNetWMName("LG3D");
562 }
563
564 static boolean isCWM() {
565 return isNetWMName("CWM");
566 }
567
568 /*
569 * Is Metacity running?
570 */
571 static boolean isMetacity() {
572 return isNetWMName("Metacity");
573 // || (
574 // XA_NET_SUPPORTING_WM_CHECK.
575 // getIntProperty(XToolkit.getDefaultRootWindow(), XA_NET_SUPPORTING_WM_CHECK.
576 // getIntProperty(XToolkit.getDefaultRootWindow(), XAtom.XA_CARDINAL)) == 0);
577 }
578
579 static boolean isMutter() {
580 return isNetWMName("Mutter");
581 }
582
583 static boolean isNonReparentingWM() {
584 return (XWM.getWMID() == XWM.COMPIZ_WM || XWM.getWMID() == XWM.LG3D_WM || XWM.getWMID() == XWM.CWM_WM);
585 }
586
587 /*
588 * Prepare IceWM check.
589 *
590 * The only way to detect IceWM, seems to be by setting
591 * _ICEWM_WINOPTHINT(_ICEWM_WINOPTHINT/8) on root and checking if it
592 * was immediately deleted by IceWM.
593 *
594 * But messing with PropertyNotify here is way too much trouble, so
595 * approximate the check by setting the property in this function and
596 * checking if it still exists later on.
597 *
598 * Gaa, dirty dances...
599 */
600 static final XAtom XA_ICEWM_WINOPTHINT = new XAtom("_ICEWM_WINOPTHINT", false);
601 static final char opt[] = {
602 'A','W','T','_','I','C','E','W','M','_','T','E','S','T','\0',
603 'a','l','l','W','o','r','k','s','p','a','c','e','s','\0',
604 '0','\0'
605 };
606 static boolean prepareIsIceWM() {
607 /*
608 * Choose something innocuous: "AWT_ICEWM_TEST allWorkspaces 0".
609 * IceWM expects "class\0option\0arg\0" with zero bytes as delimiters.
610 */
611
612 if (!XA_ICEWM_WINOPTHINT.isInterned()) {
613 log.finer("{0} is not interned", XA_ICEWM_WINOPTHINT);
614 return false;
615 }
616
617 XToolkit.awtLock();
618 try {
619 XToolkit.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance());
620 XlibWrapper.XChangePropertyS(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
621 XA_ICEWM_WINOPTHINT.getAtom(),
622 XA_ICEWM_WINOPTHINT.getAtom(),
623 8, XConstants.PropModeReplace,
624 new String(opt));
625 XToolkit.RESTORE_XERROR_HANDLER();
626
627 if (XToolkit.saved_error != null && XToolkit.saved_error.get_error_code() != XConstants.Success) {
628 log.finer("Erorr getting XA_ICEWM_WINOPTHINT property");
629 return false;
630 }
631 log.finer("Prepared for IceWM detection");
632 return true;
633 } finally {
634 XToolkit.awtUnlock();
635 }
636 }
637
638 /*
639 * Is IceWM running?
640 *
641 * Note well: Only call this if awt_wm_prepareIsIceWM succeeded, or a
642 * false positive will be reported.
643 */
644 static boolean isIceWM() {
645 if (!XA_ICEWM_WINOPTHINT.isInterned()) {
646 log.finer("{0} is not interned", XA_ICEWM_WINOPTHINT);
647 return false;
648 }
649
650 WindowPropertyGetter getter =
651 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
652 XA_ICEWM_WINOPTHINT, 0, 0xFFFF,
653 true, XA_ICEWM_WINOPTHINT);
654 try {
655 int status = getter.execute();
656 boolean res = (status == XConstants.Success && getter.getActualType() != 0);
657 log.finer("Status getting XA_ICEWM_WINOPTHINT: " + !res);
658 return !res || isNetWMName("IceWM");
659 } finally {
660 getter.dispose();
661 }
662 }
663
664 /*
665 * Is OpenLook WM running?
666 *
667 * This one is pretty lame, but the only property peculiar to OLWM is
668 * _SUN_WM_PROTOCOLS(ATOM[]). Fortunately, olwm deletes it on exit.
669 */
670 static final XAtom XA_SUN_WM_PROTOCOLS = new XAtom("_SUN_WM_PROTOCOLS", false);
671 static boolean isOpenLook() {
672 if (!XA_SUN_WM_PROTOCOLS.isInterned()) {
673 return false;
674 }
675
676 XAtom[] list = XA_SUN_WM_PROTOCOLS.getAtomListProperty(XToolkit.getDefaultRootWindow());
677 return (list.length != 0);
678 }
679
680 /*
681 * Temporary error handler that checks if selecting for
682 * SubstructureRedirect failed.
683 */
684 private static boolean winmgr_running = false;
685 private static XErrorHandler detectWMHandler = new XErrorHandler.XBaseErrorHandler() {
686 @Override
687 public int handleError(long display, XErrorEvent err) {
688 if ((err.get_request_code() == XProtocolConstants.X_ChangeWindowAttributes) &&
689 (err.get_error_code() == XConstants.BadAccess))
690 {
691 winmgr_running = true;
692 return 0;
693 }
694 return super.handleError(display, err);
695 }
696 };
697
698 /*
699 * Make an educated guess about running window manager.
700 * XXX: ideally, we should detect wm restart.
701 */
702 static int awt_wmgr = XWM.UNDETERMINED_WM;
703 static XWM wm;
704 static XWM getWM() {
705 if (wm == null) {
706 wm = new XWM(awt_wmgr = getWMID()/*XWM.OTHER_WM*/);
707 }
708 return wm;
709 }
710 static int getWMID() {
711 if (insLog.isLoggable(PlatformLogger.FINEST)) {
712 insLog.finest("awt_wmgr = " + awt_wmgr);
713 }
714 /*
715 * Ideally, we should support cases when a different WM is started
716 * during a Java app lifetime.
717 */
718
719 if (awt_wmgr != XWM.UNDETERMINED_WM) {
720 return awt_wmgr;
721 }
722
723 XSetWindowAttributes substruct = new XSetWindowAttributes();
724 XToolkit.awtLock();
725 try {
726 if (isNoWM()) {
727 awt_wmgr = XWM.NO_WM;
728 return awt_wmgr;
729 }
730
731 // Initialize _NET protocol - used to detect Window Manager.
732 // Later, WM will initialize its own version of protocol
733 XNETProtocol l_net_protocol = g_net_protocol = new XNETProtocol();
734 l_net_protocol.detect();
735 if (log.isLoggable(PlatformLogger.FINE) && l_net_protocol.active()) {
736 log.fine("_NET_WM_NAME is " + l_net_protocol.getWMName());
737 }
738 XWINProtocol win = g_win_protocol = new XWINProtocol();
739 win.detect();
740
741 /* actual check for IceWM to follow below */
742 boolean doIsIceWM = prepareIsIceWM(); /* and let IceWM to act */
743
744 /*
745 * Ok, some WM is out there. Check which one by testing for
746 * "distinguishing" atoms.
747 */
748 if (isEnlightenment()) {
749 awt_wmgr = XWM.ENLIGHTEN_WM;
750 } else if (isMetacity()) {
751 awt_wmgr = XWM.METACITY_WM;
752 } else if (isMutter()) {
753 awt_wmgr = XWM.MUTTER_WM;
754 } else if (isSawfish()) {
755 awt_wmgr = XWM.SAWFISH_WM;
756 } else if (isKDE2()) {
757 awt_wmgr =XWM.KDE2_WM;
758 } else if (isCompiz()) {
759 awt_wmgr = XWM.COMPIZ_WM;
760 } else if (isLookingGlass()) {
761 awt_wmgr = LG3D_WM;
762 } else if (isCWM()) {
763 awt_wmgr = CWM_WM;
764 } else if (doIsIceWM && isIceWM()) {
765 awt_wmgr = XWM.ICE_WM;
766 }
767 /*
768 * We don't check for legacy WM when we already know that WM
769 * supports WIN or _NET wm spec.
770 */
771 else if (l_net_protocol.active()) {
772 awt_wmgr = XWM.OTHER_WM;
773 } else if (win.active()) {
774 awt_wmgr = XWM.OTHER_WM;
775 }
776 /*
777 * Check for legacy WMs.
778 */
779 else if (isCDE()) { /* XXX: must come before isMotif */
780 awt_wmgr = XWM.CDE_WM;
781 } else if (isMotif()) {
782 awt_wmgr = XWM.MOTIF_WM;
783 } else if (isOpenLook()) {
784 awt_wmgr = XWM.OPENLOOK_WM;
785 } else {
786 awt_wmgr = XWM.OTHER_WM;
787 }
788
789 return awt_wmgr;
790 } finally {
791 XToolkit.awtUnlock();
792 substruct.dispose();
793 }
794 }
795
796
797 /*****************************************************************************\
798 *
799 * Size and decoration hints ...
800 *
801 \*****************************************************************************/
802
803
804 /*
805 * Remove size hints specified by the mask.
806 * XXX: Why do we need this in the first place???
807 */
808 static void removeSizeHints(XDecoratedPeer window, long mask) {
809 mask &= XUtilConstants.PMaxSize | XUtilConstants.PMinSize;
810
811 XToolkit.awtLock();
812 try {
813 XSizeHints hints = window.getHints();
814 if ((hints.get_flags() & mask) == 0) {
815 return;
816 }
817
818 hints.set_flags(hints.get_flags() & ~mask);
819 if (insLog.isLoggable(PlatformLogger.FINER)) insLog.finer("Setting hints, flags " + XlibWrapper.hintsToString(hints.get_flags()));
820 XlibWrapper.XSetWMNormalHints(XToolkit.getDisplay(),
821 window.getWindow(),
822 hints.pData);
823 } finally {
824 XToolkit.awtUnlock();
825 }
826 }
827
828 /*
829 * If MWM_DECOR_ALL bit is set, then the rest of the bit-mask is taken
830 * to be subtracted from the decorations. Normalize decoration spec
831 * so that we can map motif decor to something else bit-by-bit in the
832 * rest of the code.
833 */
834 static int normalizeMotifDecor(int decorations) {
835 if ((decorations & MWMConstants.MWM_DECOR_ALL) == 0) {
836 return decorations;
837 }
838 int d = MWMConstants.MWM_DECOR_BORDER | MWMConstants.MWM_DECOR_RESIZEH
839 | MWMConstants.MWM_DECOR_TITLE
840 | MWMConstants.MWM_DECOR_MENU | MWMConstants.MWM_DECOR_MINIMIZE
841 | MWMConstants.MWM_DECOR_MAXIMIZE;
842 d &= ~decorations;
843 return d;
844 }
845
846 /*
847 * If MWM_FUNC_ALL bit is set, then the rest of the bit-mask is taken
848 * to be subtracted from the functions. Normalize function spec
849 * so that we can map motif func to something else bit-by-bit in the
850 * rest of the code.
851 */
852 static int normalizeMotifFunc(int functions) {
853 if ((functions & MWMConstants.MWM_FUNC_ALL) == 0) {
854 return functions;
855 }
856 int f = MWMConstants.MWM_FUNC_RESIZE |
857 MWMConstants.MWM_FUNC_MOVE |
858 MWMConstants.MWM_FUNC_MAXIMIZE |
859 MWMConstants.MWM_FUNC_MINIMIZE |
860 MWMConstants.MWM_FUNC_CLOSE;
861 f &= ~functions;
862 return f;
863 }
864
865 /*
866 * Infer OL properties from MWM decorations.
867 * Use _OL_DECOR_DEL(ATOM[]) to remove unwanted ones.
868 */
869 static void setOLDecor(XWindow window, boolean resizable, int decorations) {
870 if (window == null) {
871 return;
872 }
873
874 XAtomList decorDel = new XAtomList();
875 decorations = normalizeMotifDecor(decorations);
876 if (insLog.isLoggable(PlatformLogger.FINER)) insLog.finer("Setting OL_DECOR to " + Integer.toBinaryString(decorations));
877 if ((decorations & MWMConstants.MWM_DECOR_TITLE) == 0) {
878 decorDel.add(XA_OL_DECOR_HEADER);
879 }
880 if ((decorations & (MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE)) == 0) {
881 decorDel.add(XA_OL_DECOR_RESIZE);
882 }
883 if ((decorations & (MWMConstants.MWM_DECOR_MENU |
884 MWMConstants.MWM_DECOR_MAXIMIZE |
885 MWMConstants.MWM_DECOR_MINIMIZE)) == 0)
886 {
887 decorDel.add(XA_OL_DECOR_CLOSE);
888 }
889 if (decorDel.size() == 0) {
890 insLog.finer("Deleting OL_DECOR");
891 XA_OL_DECOR_DEL.DeleteProperty(window);
892 } else {
893 if (insLog.isLoggable(PlatformLogger.FINER)) insLog.finer("Setting OL_DECOR to " + decorDel);
894 XA_OL_DECOR_DEL.setAtomListProperty(window, decorDel);
895 }
896 }
897
898 /*
899 * Set MWM decorations. Set MWM functions depending on resizability.
900 */
901 static void setMotifDecor(XWindow window, boolean resizable, int decorations, int functions) {
902 /* Apparently some WMs don't implement MWM_*_ALL semantic correctly */
903 if ((decorations & MWMConstants.MWM_DECOR_ALL) != 0
904 && (decorations != MWMConstants.MWM_DECOR_ALL))
905 {
906 decorations = normalizeMotifDecor(decorations);
907 }
908 if ((functions & MWMConstants.MWM_FUNC_ALL) != 0
909 && (functions != MWMConstants.MWM_FUNC_ALL))
910 {
911 functions = normalizeMotifFunc(functions);
912 }
913
914 PropMwmHints hints = window.getMWMHints();
915 hints.set_flags(hints.get_flags() |
916 MWMConstants.MWM_HINTS_FUNCTIONS |
917 MWMConstants.MWM_HINTS_DECORATIONS);
918 hints.set_functions(functions);
919 hints.set_decorations(decorations);
920
921 if (stateLog.isLoggable(PlatformLogger.FINER)) stateLog.finer("Setting MWM_HINTS to " + hints);
922 window.setMWMHints(hints);
923 }
924
925 /*
926 * Under some window managers if shell is already mapped, we MUST
927 * unmap and later remap in order to effect the changes we make in the
928 * window manager decorations.
929 *
930 * N.B. This unmapping / remapping of the shell exposes a bug in
931 * X/Motif or the Motif Window Manager. When you attempt to map a
932 * widget which is positioned (partially) off-screen, the window is
933 * relocated to be entirely on screen. Good idea. But if both the x
934 * and the y coordinates are less than the origin (0,0), the first
935 * (re)map will move the window to the origin, and any subsequent
936 * (re)map will relocate the window at some other point on the screen.
937 * I have written a short Motif test program to discover this bug.
938 * This should occur infrequently and it does not cause any real
939 * problem. So for now we'll let it be.
940 */
941 static boolean needRemap(XDecoratedPeer window) {
942 // Don't remap EmbeddedFrame,
943 // e.g. for TrayIcon it causes problems.
944 return !window.isEmbedded();
945 }
946
947 /*
948 * Set decoration hints on the shell to wdata->decor adjusted
949 * appropriately if not resizable.
950 */
951 static void setShellDecor(XDecoratedPeer window) {
952 int decorations = window.getDecorations();
953 int functions = window.getFunctions();
954 boolean resizable = window.isResizable();
955
956 if (!resizable) {
957 if ((decorations & MWMConstants.MWM_DECOR_ALL) != 0) {
958 decorations |= MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE;
959 } else {
960 decorations &= ~(MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE);
961 }
962 }
963 setMotifDecor(window, resizable, decorations, functions);
964 setOLDecor(window, resizable, decorations);
965
966 /* Some WMs need remap to redecorate the window */
967 if (window.isShowing() && needRemap(window)) {
968 /*
969 * Do the re/mapping at the Xlib level. Since we essentially
970 * work around a WM bug we don't want this hack to be exposed
971 * to Intrinsics (i.e. don't mess with grabs, callbacks etc).
972 */
973 window.xSetVisible(false);
974 XToolkit.XSync();
975 window.xSetVisible(true);
976 }
977 }
978
979 /*
980 * Make specified shell resizable.
981 */
982 static void setShellResizable(XDecoratedPeer window) {
983 if (insLog.isLoggable(PlatformLogger.FINE)) insLog.fine("Setting shell resizable " + window);
984 XToolkit.awtLock();
985 try {
986 Rectangle shellBounds = window.getShellBounds();
987 shellBounds.translate(-window.currentInsets.left, -window.currentInsets.top);
988 window.updateSizeHints(window.getDimensions());
989 requestWMExtents(window.getWindow());
990 XlibWrapper.XMoveResizeWindow(XToolkit.getDisplay(), window.getShell(),
991 shellBounds.x, shellBounds.y, shellBounds.width, shellBounds.height);
992 /* REMINDER: will need to revisit when setExtendedStateBounds is added */
993 //Fix for 4320050: Minimum size for java.awt.Frame is not being enforced.
994 //We need to update frame's minimum size, not to reset it
995 removeSizeHints(window, XUtilConstants.PMaxSize);
996 window.updateMinimumSize();
997
998 /* Restore decorations */
999 setShellDecor(window);
1000 } finally {
1001 XToolkit.awtUnlock();
1002 }
1003 }
1004
1005 /*
1006 * Make specified shell non-resizable.
1007 * If justChangeSize is false, update decorations as well.
1008 * @param shellBounds bounds of the shell window
1009 */
1010 static void setShellNotResizable(XDecoratedPeer window, WindowDimensions newDimensions, Rectangle shellBounds,
1011 boolean justChangeSize)
1012 {
1013 if (insLog.isLoggable(PlatformLogger.FINE)) insLog.fine("Setting non-resizable shell " + window + ", dimensions " + newDimensions +
1014 ", shellBounds " + shellBounds +", just change size: " + justChangeSize);
1015 XToolkit.awtLock();
1016 try {
1017 /* Fix min/max size hints at the specified values */
1018 if (!shellBounds.isEmpty()) {
1019 window.updateSizeHints(newDimensions);
1020 requestWMExtents(window.getWindow());
1021 XToolkit.XSync();
1022 XlibWrapper.XMoveResizeWindow(XToolkit.getDisplay(), window.getShell(),
1023 shellBounds.x, shellBounds.y, shellBounds.width, shellBounds.height);
1024 }
1025 if (!justChangeSize) { /* update decorations */
1026 setShellDecor(window);
1027 }
1028 } finally {
1029 XToolkit.awtUnlock();
1030 }
1031 }
1032
1033 /*****************************************************************************\
1034 * Protocols support
1035 */
1036 private HashMap<Class<?>, Collection<?>> protocolsMap = new HashMap<Class<?>, Collection<?>>();
1037 /**
1038 * Returns all protocols supporting given protocol interface
1039 */
1040 <T> Collection<T> getProtocols(Class<T> protocolInterface) {
1041 Collection<T> res = (Collection<T>) protocolsMap.get(protocolInterface);
1042 if (res != null) {
1043 return res;
1044 } else {
1045 return new LinkedList<T>();
1046 }
1047 }
1048
1049 private <T> void addProtocol(Class<T> protocolInterface, T protocol) {
1050 Collection<T> protocols = getProtocols(protocolInterface);
1051 protocols.add(protocol);
1052 protocolsMap.put(protocolInterface, protocols);
1053 }
1054
1055 boolean supportsDynamicLayout() {
1056 int wm = getWMID();
1057 switch (wm) {
1058 case XWM.ENLIGHTEN_WM:
1059 case XWM.KDE2_WM:
1060 case XWM.SAWFISH_WM:
1061 case XWM.ICE_WM:
1062 case XWM.METACITY_WM:
1063 return true;
1064 case XWM.OPENLOOK_WM:
1065 case XWM.MOTIF_WM:
1066 case XWM.CDE_WM:
1067 return false;
1068 default:
1069 return false;
1070 }
1071 }
1072
1073
1074 /**
1075 * Check if state is supported.
1076 * Note that a compound state is always reported as not supported.
1077 * Note also that MAXIMIZED_BOTH is considered not a compound state.
1078 * Therefore, a compound state is just ICONIFIED | anything else.
1079 *
1080 */
1081 boolean supportsExtendedState(int state) {
1082 switch (state) {
1083 case Frame.MAXIMIZED_VERT:
1084 case Frame.MAXIMIZED_HORIZ:
1085 /*
1086 * WMs that talk NET/WIN protocol, but do not support
1087 * unidirectional maximization.
1088 */
1089 if (getWMID() == METACITY_WM) {
1090 /* "This is a deliberate policy decision." -hp */
1091 return false;
1092 }
1093 /* FALLTROUGH */
1094 case Frame.MAXIMIZED_BOTH:
1095 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1096 if (proto.supportsState(state)) {
1097 return true;
1098 }
1099 }
1100 default:
1101 return false;
1102 }
1103 }
1104
1105 /*****************************************************************************\
1106 *
1107 * Reading state from different protocols
1108 *
1109 \*****************************************************************************/
1110
1111
1112 int getExtendedState(XWindowPeer window) {
1113 int state = 0;
1114 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1115 state |= proto.getState(window);
1116 }
1117 if (state != 0) {
1118 return state;
1119 } else {
1120 return Frame.NORMAL;
1121 }
1122 }
1123
1124 /*****************************************************************************\
1125 *
1126 * Notice window state change when WM changes a property on the window ...
1127 *
1128 \*****************************************************************************/
1129
1130
1131 /*
1132 * Check if property change is a window state protocol message.
1133 */
1134 boolean isStateChange(XDecoratedPeer window, XPropertyEvent e) {
1135 if (!window.isShowing()) {
1136 stateLog.finer("Window is not showing");
1137 return false;
1138 }
1139
1140 int wm_state = window.getWMState();
1141 if (wm_state == XUtilConstants.WithdrawnState) {
1142 stateLog.finer("WithdrawnState");
1143 return false;
1144 } else {
1145 stateLog.finer("Window WM_STATE is " + wm_state);
1146 }
1147 boolean is_state_change = false;
1148 if (e.get_atom() == XA_WM_STATE.getAtom()) {
1149 is_state_change = true;
1150 }
1151
1152 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1153 is_state_change |= proto.isStateChange(e);
1154 stateLog.finest(proto + ": is state changed = " + is_state_change);
1155 }
1156 return is_state_change;
1157 }
1158
1159 /*
1160 * Returns current state (including extended) of a given window.
1161 */
1162 int getState(XDecoratedPeer window) {
1163 int res = 0;
1164 final int wm_state = window.getWMState();
1165 if (wm_state == XUtilConstants.IconicState) {
1166 res = Frame.ICONIFIED;
1167 } else {
1168 res = Frame.NORMAL;
1169 }
1170 res |= getExtendedState(window);
1171 return res;
1172 }
1173
1174 /*****************************************************************************\
1175 *
1176 * Setting/changing window state ...
1177 *
1178 \*****************************************************************************/
1179
1180 /**
1181 * Moves window to the specified layer, layer is one of the constants defined
1182 * in XLayerProtocol
1183 */
1184 void setLayer(XWindowPeer window, int layer) {
1185 for (XLayerProtocol proto : getProtocols(XLayerProtocol.class)) {
1186 if (proto.supportsLayer(layer)) {
1187 proto.setLayer(window, layer);
1188 }
1189 }
1190 XToolkit.XSync();
1191 }
1192
1193 void setExtendedState(XWindowPeer window, int state) {
1194 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1195 if (proto.supportsState(state)) {
1196 proto.setState(window, state);
1197 break;
1198 }
1199 }
1200
1201 if (!window.isShowing()) {
1202 /*
1203 * Purge KWM bits.
1204 * Not really tested with KWM, only with WindowMaker.
1205 */
1206 XToolkit.awtLock();
1207 try {
1208 XlibWrapper.XDeleteProperty(XToolkit.getDisplay(),
1209 window.getWindow(),
1210 XA_KWM_WIN_ICONIFIED.getAtom());
1211 XlibWrapper.XDeleteProperty(XToolkit.getDisplay(),
1212 window.getWindow(),
1213 XA_KWM_WIN_MAXIMIZED.getAtom());
1214 }
1215 finally {
1216 XToolkit.awtUnlock();
1217 }
1218 }
1219 XToolkit.XSync();
1220 }
1221
1222
1223 /*
1224 * Work around for 4775545.
1225 *
1226 * If WM exits while the top-level is shaded, the shaded hint remains
1227 * on the top-level properties. When WM restarts and sees the shaded
1228 * window it can reparent it into a "pre-shaded" decoration frame
1229 * (Metacity does), and our insets logic will go crazy, b/c it will
1230 * see a huge nagative bottom inset. There's no clean solution for
1231 * this, so let's just be weasels and drop the shaded hint if we
1232 * detect that WM exited. NB: we are in for a race condition with WM
1233 * restart here. NB2: e.g. WindowMaker saves the state in a private
1234 * property that this code knows nothing about, so this workaround is
1235 * not effective; other WMs might play similar tricks.
1236 */
1237 void unshadeKludge(XDecoratedPeer window) {
1238 assert(window.isShowing());
1239
1240 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1241 proto.unshadeKludge(window);
1242 }
1243 XToolkit.XSync();
1244 }
1245
1246 static boolean inited = false;
1247 static void init() {
1248 if (inited) {
1249 return;
1250 }
1251
1252 initAtoms();
1253 getWM();
1254 inited = true;
1255 }
1256
1257 void initializeProtocols() {
1258 XNETProtocol net_protocol = g_net_protocol;
1259 if (net_protocol != null) {
1260 if (!net_protocol.active()) {
1261 net_protocol = null;
1262 } else {
1263 if (net_protocol.doStateProtocol()) {
1264 addProtocol(XStateProtocol.class, net_protocol);
1265 }
1266 if (net_protocol.doLayerProtocol()) {
1267 addProtocol(XLayerProtocol.class, net_protocol);
1268 }
1269 }
1270 }
1271
1272 XWINProtocol win = g_win_protocol;
1273 if (win != null) {
1274 if (win.active()) {
1275 if (win.doStateProtocol()) {
1276 addProtocol(XStateProtocol.class, win);
1277 }
1278 if (win.doLayerProtocol()) {
1279 addProtocol(XLayerProtocol.class, win);
1280 }
1281 }
1282 }
1283 }
1284
1285 HashMap storedInsets = new HashMap();
1286 Insets guessInsets(XDecoratedPeer window) {
1287 Insets res = (Insets)storedInsets.get(window.getClass());
1288 if (res == null) {
1289 switch (WMID) {
1290 case ENLIGHTEN_WM:
1291 res = new Insets(19, 4, 4, 4);
1292 break;
1293 case CDE_WM:
1294 res = new Insets(28, 6, 6, 6);
1295 break;
1296 case NO_WM:
1297 case LG3D_WM:
1298 res = zeroInsets;
1299 break;
1300 case MOTIF_WM:
1301 case OPENLOOK_WM:
1302 default:
1303 res = defaultInsets;
1304 }
1305 }
1306 if (insLog.isLoggable(PlatformLogger.FINEST)) insLog.finest("WM guessed insets: " + res);
1307 return res;
1308 }
1309 /*
1310 * Some buggy WMs ignore window gravity when processing
1311 * ConfigureRequest and position window as if the gravity is Static.
1312 * We work around this in MWindowPeer.pReshape().
1313 *
1314 * Starting with 1.5 we have introduced an Environment variable
1315 * _JAVA_AWT_WM_STATIC_GRAVITY that can be set to indicate to Java
1316 * explicitly that the WM has this behaviour, example is FVWM.
1317 */
1318
1319 static int awtWMStaticGravity = -1;
1320 static boolean configureGravityBuggy() {
1321
1322 if (awtWMStaticGravity == -1) {
1323 awtWMStaticGravity = (XToolkit.getEnv("_JAVA_AWT_WM_STATIC_GRAVITY") != null) ? 1 : 0;
1324 }
1325
1326 if (awtWMStaticGravity == 1) {
1327 return true;
1328 }
1329
1330 switch(getWMID()) {
1331 case XWM.ICE_WM:
1332 /*
1333 * See bug #228981 at IceWM's SourceForge pages.
1334 * Latest stable version 1.0.8-6 still has this problem.
1335 */
1336 /**
1337 * Version 1.2.2 doesn't have this problem
1338 */
1339 // Detect IceWM version
1340 if (g_net_protocol != null) {
1341 String wm_name = g_net_protocol.getWMName();
1342 Pattern pat = Pattern.compile("^IceWM (\\d+)\\.(\\d+)\\.(\\d+).*$");
1343 try {
1344 Matcher match = pat.matcher(wm_name);
1345 if (match.matches()) {
1346 int v1 = Integer.parseInt(match.group(1));
1347 int v2 = Integer.parseInt(match.group(2));
1348 int v3 = Integer.parseInt(match.group(3));
1349 return !(v1 > 1 || (v1 == 1 && (v2 > 2 || (v2 == 2 && v3 >=2))));
1350 }
1351 } catch (Exception e) {
1352 return true;
1353 }
1354 }
1355 return true;
1356 case XWM.ENLIGHTEN_WM:
1357 /* At least E16 is buggy. */
1358 return true;
1359 default:
1360 return false;
1361 }
1362 }
1363
1364 /*
1365 * @return if WM implements the insets property - returns insets with values
1366 * specified in that property, null otherwise.
1367 */
1368 public static Insets getInsetsFromExtents(long window) {
1369 if (window == XConstants.None) {
1370 return null;
1371 }
1372 XNETProtocol net_protocol = getWM().getNETProtocol();
1373 if (net_protocol != null && net_protocol.active()) {
1374 Insets insets = getInsetsFromProp(window, XA_NET_FRAME_EXTENTS);
1375 insLog.fine("_NET_FRAME_EXTENTS: {0}", insets);
1376
1377 if (insets != null) {
1378 return insets;
1379 }
1380 }
1381 switch(getWMID()) {
1382 case XWM.KDE2_WM:
1383 return getInsetsFromProp(window, XA_KDE_NET_WM_FRAME_STRUT);
1384 case XWM.ENLIGHTEN_WM:
1385 return getInsetsFromProp(window, XA_E_FRAME_SIZE);
1386 default:
1387 return null;
1388 }
1389 }
1390
1391 /**
1392 * Helper function reads property of type CARDINAL[4] = { left, right, top, bottom }
1393 * and converts it to Insets object.
1394 */
1395 public static Insets getInsetsFromProp(long window, XAtom atom) {
1396 if (window == XConstants.None) {
1397 return null;
1398 }
1399
1400 WindowPropertyGetter getter =
1401 new WindowPropertyGetter(window, atom,
1402 0, 4, false, XAtom.XA_CARDINAL);
1403 try {
1404 if (getter.execute() != XConstants.Success
1405 || getter.getData() == 0
1406 || getter.getActualType() != XAtom.XA_CARDINAL
1407 || getter.getActualFormat() != 32)
1408 {
1409 return null;
1410 } else {
1411 return new Insets((int)Native.getCard32(getter.getData(), 2), // top
1412 (int)Native.getCard32(getter.getData(), 0), // left
1413 (int)Native.getCard32(getter.getData(), 3), // bottom
1414 (int)Native.getCard32(getter.getData(), 1)); // right
1415 }
1416 } finally {
1417 getter.dispose();
1418 }
1419 }
1420
1421 /**
1422 * Asks WM to fill Frame Extents (insets) for the window.
1423 */
1424 public static void requestWMExtents(long window) {
1425 if (window == XConstants.None) { // not initialized
1426 return;
1427 }
1428
1429 log.fine("Requesting FRAME_EXTENTS");
1430
1431 XClientMessageEvent msg = new XClientMessageEvent();
1432 msg.zero();
1433 msg.set_type(XConstants.ClientMessage);
1434 msg.set_display(XToolkit.getDisplay());
1435 msg.set_window(window);
1436 msg.set_format(32);
1437 XToolkit.awtLock();
1438 try {
1439 XNETProtocol net_protocol = getWM().getNETProtocol();
1440 if (net_protocol != null && net_protocol.active()) {
1441 msg.set_message_type(XA_NET_REQUEST_FRAME_EXTENTS.getAtom());
1442 XlibWrapper.XSendEvent(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
1443 false,
1444 XConstants.SubstructureRedirectMask | XConstants.SubstructureNotifyMask,
1445 msg.getPData());
1446 }
1447 if (getWMID() == XWM.KDE2_WM) {
1448 msg.set_message_type(XA_KDE_NET_WM_FRAME_STRUT.getAtom());
1449 XlibWrapper.XSendEvent(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
1450 false,
1451 XConstants.SubstructureRedirectMask | XConstants.SubstructureNotifyMask,
1452 msg.getPData());
1453 }
1454 // XXX: should we wait for response? XIfEvent() would be useful here :)
1455 } finally {
1456 XToolkit.awtUnlock();
1457 msg.dispose();
1458 }
1459 }
1460
1461 /* syncTopLEvelPos() is necessary to insure that the window manager has in
1462 * fact moved us to our final position relative to the reParented WM window.
1463 * We have noted a timing window which our shell has not been moved so we
1464 * screw up the insets thinking they are 0,0. Wait (for a limited period of
1465 * time to let the WM hava a chance to move us.
1466 * @param window window ID of the shell, assuming it is the window
1467 * which will NOT have zero coordinates after the complete
1468 * reparenting
1469 */
1470 boolean syncTopLevelPos(long window, XWindowAttributes attrs) {
1471 int tries = 0;
1472 XToolkit.awtLock();
1473 try {
1474 do {
1475 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(), window, attrs.pData);
1476 if (attrs.get_x() != 0 || attrs.get_y() != 0) {
1477 return true;
1478 }
1479 tries++;
1480 XToolkit.XSync();
1481 } while (tries < 50);
1482 }
1483 finally {
1484 XToolkit.awtUnlock();
1485 }
1486 return false;
1487 }
1488
1489 Insets getInsets(XDecoratedPeer win, long window, long parent) {
1490 /*
1491 * Unfortunately the concept of "insets" borrowed to AWT
1492 * from Win32 is *absolutely*, *unbelievably* foreign to
1493 * X11. Few WMs provide the size of frame decor
1494 * (i.e. insets) in a property they set on the client
1495 * window, so we check if we can get away with just
1496 * peeking at it. [Future versions of wm-spec might add a
1497 * standardized hint for this].
1498 *
1499 * Otherwise we do some special casing. Actually the
1500 * fallback code ("default" case) seems to cover most of
1501 * the existing WMs (modulo Reparent/Configure order
1502 * perhaps?).
1503 *
1504 * Fallback code tries to account for the two most common cases:
1505 *
1506 * . single reparenting
1507 * parent window is the WM frame
1508 * [twm, olwm, sawfish]
1509 *
1510 * . double reparenting
1511 * parent is a lining exactly the size of the client
1512 * grandpa is the WM frame
1513 * [mwm, e!, kwin, fvwm2 ... ]
1514 */
1515 Insets correctWM = XWM.getInsetsFromExtents(window);
1516 insLog.finer("Got insets from property: {0}", correctWM);
1517
1518 if (correctWM == null) {
1519 correctWM = new Insets(0,0,0,0);
1520
1521 correctWM.top = -1;
1522 correctWM.left = -1;
1523
1524 XWindowAttributes lwinAttr = new XWindowAttributes();
1525 XWindowAttributes pattr = new XWindowAttributes();
1526 try {
1527 switch (XWM.getWMID()) {
1528 /* should've been done in awt_wm_getInsetsFromProp */
1529 case XWM.ENLIGHTEN_WM: {
1530 /* enlightenment does double reparenting */
1531 syncTopLevelPos(parent, lwinAttr);
1532 correctWM.left = lwinAttr.get_x();
1533 correctWM.top = lwinAttr.get_y();
1534 /*
1535 * Now get the actual dimensions of the parent window
1536 * resolve the difference. We can't rely on the left
1537 * to be equal to right or bottom... Enlightment
1538 * breaks that assumption.
1539 */
1540 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1541 XlibUtil.getParentWindow(parent),
1542 pattr.pData);
1543 correctWM.right = pattr.get_width() -
1544 (lwinAttr.get_width() + correctWM.left);
1545 correctWM.bottom = pattr.get_height() -
1546 (lwinAttr.get_height() + correctWM.top);
1547
1548 break;
1549 }
1550 case XWM.ICE_WM: // for 1.2.2.
1551 case XWM.KDE2_WM: /* should've been done in getInsetsFromProp */
1552 case XWM.CDE_WM:
1553 case XWM.MOTIF_WM: {
1554 /* these are double reparenting too */
1555 if (syncTopLevelPos(parent, lwinAttr)) {
1556 correctWM.top = lwinAttr.get_y();
1557 correctWM.left = lwinAttr.get_x();
1558 correctWM.right = correctWM.left;
1559 correctWM.bottom = correctWM.left;
1560 } else {
1561 return null;
1562 }
1563 break;
1564 }
1565 case XWM.SAWFISH_WM:
1566 case XWM.OPENLOOK_WM: {
1567 /* single reparenting */
1568 syncTopLevelPos(window, lwinAttr);
1569 correctWM.top = lwinAttr.get_y();
1570 correctWM.left = lwinAttr.get_x();
1571 correctWM.right = correctWM.left;
1572 correctWM.bottom = correctWM.left;
1573 break;
1574 }
1575 case XWM.OTHER_WM:
1576 default: { /* this is very similar to the E! case above */
1577 insLog.finest("Getting correct insets for OTHER_WM/default, parent: {0}", parent);
1578 syncTopLevelPos(parent, lwinAttr);
1579 int status = XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1580 window, lwinAttr.pData);
1581 status = XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1582 parent, pattr.pData);
1583 if (lwinAttr.get_root() == parent) {
1584 insLog.finest("our parent is root so insets should be zero");
1585 correctWM = new Insets(0, 0, 0, 0);
1586 break;
1587 }
1588
1589 /*
1590 * Check for double-reparenting WM.
1591 *
1592 * If the parent is exactly the same size as the
1593 * top-level assume taht it's the "lining" window and
1594 * that the grandparent is the actual frame (NB: we
1595 * have already handled undecorated windows).
1596 *
1597 * XXX: what about timing issues that syncTopLevelPos
1598 * is supposed to work around?
1599 */
1600 if (lwinAttr.get_x() == 0 && lwinAttr.get_y() == 0
1601 && lwinAttr.get_width()+2*lwinAttr.get_border_width() == pattr.get_width()
1602 && lwinAttr.get_height()+2*lwinAttr.get_border_width() == pattr.get_height())
1603 {
1604 insLog.finest("Double reparenting detected, pattr({2})={0}, lwinAttr({3})={1}",
1605 lwinAttr, pattr, parent, window);
1606 lwinAttr.set_x(pattr.get_x());
1607 lwinAttr.set_y(pattr.get_y());
1608 lwinAttr.set_border_width(lwinAttr.get_border_width()+pattr.get_border_width());
1609
1610 final long grand_parent = XlibUtil.getParentWindow(parent);
1611
1612 if (grand_parent == lwinAttr.get_root()) {
1613 // This is not double-reparenting in a
1614 // general sense - we simply don't have
1615 // correct insets - return null to try to
1616 // get insets later
1617 return null;
1618 } else {
1619 parent = grand_parent;
1620 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1621 parent,
1622 pattr.pData);
1623 }
1624 }
1625 /*
1626 * XXX: To be absolutely correct, we'd need to take
1627 * parent's border-width into account too, but the
1628 * rest of the code is happily unaware about border
1629 * widths and inner/outer distinction, so for the time
1630 * being, just ignore it.
1631 */
1632 insLog.finest("Attrs before calculation: pattr({2})={0}, lwinAttr({3})={1}",
1633 lwinAttr, pattr, parent, window);
1634 correctWM = new Insets(lwinAttr.get_y() + lwinAttr.get_border_width(),
1635 lwinAttr.get_x() + lwinAttr.get_border_width(),
1636 pattr.get_height() - (lwinAttr.get_y() + lwinAttr.get_height() + 2*lwinAttr.get_border_width()),
1637 pattr.get_width() - (lwinAttr.get_x() + lwinAttr.get_width() + 2*lwinAttr.get_border_width()));
1638 break;
1639 } /* default */
1640 } /* switch (runningWM) */
1641 } finally {
1642 lwinAttr.dispose();
1643 pattr.dispose();
1644 }
1645 }
1646 if (storedInsets.get(win.getClass()) == null) {
1647 storedInsets.put(win.getClass(), correctWM);
1648 }
1649 return correctWM;
1650 }
1651 boolean isDesktopWindow( long w ) {
1652 if (g_net_protocol != null) {
1653 XAtomList wtype = XAtom.get("_NET_WM_WINDOW_TYPE").getAtomListPropertyList( w );
1654 return wtype.contains( XAtom.get("_NET_WM_WINDOW_TYPE_DESKTOP") );
1655 } else {
1656 return false;
1657 }
1658 }
1659
1660 public XNETProtocol getNETProtocol() {
1661 return g_net_protocol;
1662 }
1663
1664 /**
1665 * Sets _NET_WN_ICON property on the window using the arrays of
1666 * raster-data for icons. If icons is null, removes _NET_WM_ICON
1667 * property.
1668 * This method invokes XNETProtocol.setWMIcon() for WMs that
1669 * support NET protocol.
1670 *
1671 * @return true if hint was modified successfully, false otherwise
1672 */
1673 public boolean setNetWMIcon(XWindowPeer window, java.util.List<XIconInfo> icons) {
1674 if (g_net_protocol != null && g_net_protocol.active()) {
1675 g_net_protocol.setWMIcons(window, icons);
1676 return getWMID() != ICE_WM;
1677 }
1678 return false;
1679 }
1680 }