1 /*
2 * Copyright (c) 2003, 2013, 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.awt.IconInfo;
34 import sun.misc.Unsafe;
35 import java.awt.Insets;
36 import java.awt.Frame;
37 import java.awt.Rectangle;
38 import java.util.Collection;
39 import java.util.HashMap;
40 import java.util.LinkedList;
41 import java.util.regex.Matcher;
42 import java.util.regex.Pattern;
43 import sun.util.logging.PlatformLogger;
44
45
46 /**
47 * Class incapsulating knowledge about window managers in general
48 * Descendants should provide some information about specific window manager.
49 */
50 final class XWM
51 {
52
53 private final static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XWM");
54 private final static PlatformLogger insLog = PlatformLogger.getLogger("sun.awt.X11.insets.XWM");
55 private final static PlatformLogger stateLog = PlatformLogger.getLogger("sun.awt.X11.states.XWM");
56
57 static final XAtom XA_MWM_HINTS = new XAtom();
58
59 private static Unsafe unsafe = XlibWrapper.unsafe;
60
61
62 /* Good old ICCCM */
63 static XAtom XA_WM_STATE = new XAtom();
64
65
66 XAtom XA_UTF8_STRING = XAtom.get("UTF8_STRING"); /* like STRING but encoding is UTF-8 */
67
68 /* Currently we only care about max_v and max_h in _NET_WM_STATE */
69 final static int AWT_NET_N_KNOWN_STATES=2;
70
71 /* Enlightenment */
72 final static XAtom XA_E_FRAME_SIZE = new XAtom();
73
74 /* KWin (KDE2) */
75 final static XAtom XA_KDE_NET_WM_FRAME_STRUT = new XAtom();
76
77 /* KWM (KDE 1.x) OBSOLETE??? */
78 final static XAtom XA_KWM_WIN_ICONIFIED = new XAtom();
79 final static XAtom XA_KWM_WIN_MAXIMIZED = new XAtom();
80
81 /* OpenLook */
82 final static XAtom XA_OL_DECOR_DEL = new XAtom();
83 final static XAtom XA_OL_DECOR_HEADER = new XAtom();
84 final static XAtom XA_OL_DECOR_RESIZE = new XAtom();
85 final static XAtom XA_OL_DECOR_PIN = new XAtom();
86 final static XAtom XA_OL_DECOR_CLOSE = new XAtom();
87
88 /* EWMH */
89 final static XAtom XA_NET_FRAME_EXTENTS = new XAtom();
90 final static XAtom XA_NET_REQUEST_FRAME_EXTENTS = new XAtom();
91
92 final static int
93 UNDETERMINED_WM = 1,
94 NO_WM = 2,
95 OTHER_WM = 3,
96 OPENLOOK_WM = 4,
97 MOTIF_WM = 5,
98 CDE_WM = 6,
99 ENLIGHTEN_WM = 7,
100 KDE2_WM = 8,
101 SAWFISH_WM = 9,
102 ICE_WM = 10,
103 METACITY_WM = 11,
104 COMPIZ_WM = 12,
105 LG3D_WM = 13,
106 CWM_WM = 14,
107 MUTTER_WM = 15;
108 public String toString() {
109 switch (WMID) {
110 case NO_WM:
111 return "NO WM";
112 case OTHER_WM:
113 return "Other WM";
114 case OPENLOOK_WM:
115 return "OPENLOOK";
116 case MOTIF_WM:
117 return "MWM";
118 case CDE_WM:
119 return "DTWM";
120 case ENLIGHTEN_WM:
121 return "Enlightenment";
122 case KDE2_WM:
123 return "KWM2";
124 case SAWFISH_WM:
125 return "Sawfish";
126 case ICE_WM:
127 return "IceWM";
128 case METACITY_WM:
129 return "Metacity";
130 case COMPIZ_WM:
131 return "Compiz";
132 case LG3D_WM:
133 return "LookingGlass";
134 case CWM_WM:
135 return "CWM";
136 case MUTTER_WM:
137 return "Mutter";
138 case UNDETERMINED_WM:
139 default:
140 return "Undetermined WM";
141 }
142 }
143
144
145 int WMID;
146 static final Insets zeroInsets = new Insets(0, 0, 0, 0);
147 static final Insets defaultInsets = new Insets(25, 5, 5, 5);
148
149 XWM(int WMID) {
150 this.WMID = WMID;
151 initializeProtocols();
152 if (log.isLoggable(PlatformLogger.Level.FINE)) {
153 log.fine("Window manager: " + toString());
154 }
155 }
156 int getID() {
157 return WMID;
158 }
159
160
161 static Insets normalize(Insets insets) {
162 if (insets.top > 64 || insets.top < 0) {
163 insets.top = 28;
164 }
165 if (insets.left > 32 || insets.left < 0) {
166 insets.left = 6;
167 }
168 if (insets.right > 32 || insets.right < 0) {
169 insets.right = 6;
170 }
171 if (insets.bottom > 32 || insets.bottom < 0) {
172 insets.bottom = 6;
173 }
174 return insets;
175 }
176
177 static XNETProtocol g_net_protocol = null;
178 static XWINProtocol g_win_protocol = null;
179 static boolean isNetWMName(String name) {
180 if (g_net_protocol != null) {
181 return g_net_protocol.isWMName(name);
182 } else {
183 return false;
184 }
185 }
186
187 static void initAtoms() {
188 final Object[][] atomInitList ={
189 { XA_WM_STATE, "WM_STATE" },
190
191 { XA_KDE_NET_WM_FRAME_STRUT, "_KDE_NET_WM_FRAME_STRUT" },
192
193 { XA_E_FRAME_SIZE, "_E_FRAME_SIZE" },
194
195 { XA_KWM_WIN_ICONIFIED, "KWM_WIN_ICONIFIED" },
196 { XA_KWM_WIN_MAXIMIZED, "KWM_WIN_MAXIMIZED" },
197
198 { XA_OL_DECOR_DEL, "_OL_DECOR_DEL" },
199 { XA_OL_DECOR_HEADER, "_OL_DECOR_HEADER" },
200 { XA_OL_DECOR_RESIZE, "_OL_DECOR_RESIZE" },
201 { XA_OL_DECOR_PIN, "_OL_DECOR_PIN" },
202 { XA_OL_DECOR_CLOSE, "_OL_DECOR_CLOSE" },
203 { XA_MWM_HINTS, "_MOTIF_WM_HINTS" },
204 { XA_NET_FRAME_EXTENTS, "_NET_FRAME_EXTENTS" },
205 { XA_NET_REQUEST_FRAME_EXTENTS, "_NET_REQUEST_FRAME_EXTENTS" },
206 };
207
208 String[] names = new String[atomInitList.length];
209 for (int index = 0; index < names.length; index++) {
210 names[index] = (String)atomInitList[index][1];
211 }
212
213 int atomSize = XAtom.getAtomSize();
214 long atoms = unsafe.allocateMemory(names.length*atomSize);
215 XToolkit.awtLock();
216 try {
217 int status = XlibWrapper.XInternAtoms(XToolkit.getDisplay(), names, false, atoms);
218 if (status == 0) {
219 return;
220 }
221 for (int atom = 0, atomPtr = 0; atom < names.length; atom++, atomPtr += atomSize) {
222 ((XAtom)(atomInitList[atom][0])).setValues(XToolkit.getDisplay(), names[atom], XAtom.getAtom(atoms + atomPtr));
223 }
224 } finally {
225 XToolkit.awtUnlock();
226 unsafe.freeMemory(atoms);
227 }
228 }
229
230 /*
231 * MUST BE CALLED UNDER AWTLOCK.
232 *
233 * If *any* window manager is running?
234 *
235 * According to ICCCM 2.0 section 4.3.
236 * WM will acquire ownership of a selection named WM_Sn, where n is
237 * the screen number.
238 *
239 * No selection owner, but, perhaps it is not ICCCM compliant WM
240 * (e.g. CDE/Sawfish).
241 * Try selecting for SubstructureRedirect, that only one client
242 * can select for, and if the request fails, than some other WM is
243 * already running.
244 *
245 * We also treat eXcursion as NO_WM.
246 */
247 private static boolean isNoWM() {
248 /*
249 * Quick checks for specific servers.
250 */
251 String vendor_string = XlibWrapper.ServerVendor(XToolkit.getDisplay());
252 if (vendor_string.indexOf("eXcursion") != -1) {
253 /*
254 * Use NO_WM since in all other aspects eXcursion is like not
255 * having a window manager running. I.e. it does not reparent
256 * top level shells.
257 */
258 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
259 insLog.finer("eXcursion means NO_WM");
260 }
261 return true;
262 }
263
264 XSetWindowAttributes substruct = new XSetWindowAttributes();
265 try {
266 /*
267 * Let's check an owner of WM_Sn selection for the default screen.
268 */
269 final long default_screen_number =
270 XlibWrapper.DefaultScreen(XToolkit.getDisplay());
271 final String selection_name = "WM_S" + default_screen_number;
272
273 long selection_owner =
274 XlibWrapper.XGetSelectionOwner(XToolkit.getDisplay(),
275 XAtom.get(selection_name).getAtom());
276 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
277 insLog.finer("selection owner of " + selection_name
278 + " is " + selection_owner);
279 }
280
281 if (selection_owner != XConstants.None) {
282 return false;
283 }
284
285 winmgr_running = false;
286 substruct.set_event_mask(XConstants.SubstructureRedirectMask);
287
288 XErrorHandlerUtil.WITH_XERROR_HANDLER(detectWMHandler);
289 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),
290 XToolkit.getDefaultRootWindow(),
291 XConstants.CWEventMask,
292 substruct.pData);
293 XErrorHandlerUtil.RESTORE_XERROR_HANDLER();
294
295 /*
296 * If no WM is running then our selection for SubstructureRedirect
297 * succeeded and needs to be undone (hey we are *not* a WM ;-).
298 */
299 if (!winmgr_running) {
300 substruct.set_event_mask(0);
301 XlibWrapper.XChangeWindowAttributes(XToolkit.getDisplay(),
302 XToolkit.getDefaultRootWindow(),
303 XConstants.CWEventMask,
304 substruct.pData);
305 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
306 insLog.finer("It looks like there is no WM thus NO_WM");
307 }
308 }
309
310 return !winmgr_running;
311 } finally {
312 substruct.dispose();
313 }
314 }
315
316 static XAtom XA_ENLIGHTENMENT_COMMS = new XAtom("ENLIGHTENMENT_COMMS", false);
317 /*
318 * Helper function for isEnlightenment().
319 * Enlightenment uses STRING property for its comms window id. Gaaa!
320 * The property is ENLIGHTENMENT_COMMS, STRING/8 and the string format
321 * is "WINID %8x". Gee, I haven't been using scanf for *ages*... :-)
322 */
323 static long getECommsWindowIDProperty(long window) {
324
325 if (!XA_ENLIGHTENMENT_COMMS.isInterned()) {
326 return 0;
327 }
328
329 WindowPropertyGetter getter =
330 new WindowPropertyGetter(window, XA_ENLIGHTENMENT_COMMS, 0, 14, false,
331 XAtom.XA_STRING);
332 try {
333 int status = getter.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance());
334 if (status != XConstants.Success || getter.getData() == 0) {
335 return 0;
336 }
337
338 if (getter.getActualType() != XAtom.XA_STRING
339 || getter.getActualFormat() != 8
340 || getter.getNumberOfItems() != 14 || getter.getBytesAfter() != 0)
341 {
342 return 0;
343 }
344
345 // Convert data to String, ASCII
346 byte[] bytes = XlibWrapper.getStringBytes(getter.getData());
347 String id = new String(bytes);
348
349 if (log.isLoggable(PlatformLogger.Level.FINER)) {
350 log.finer("ENLIGHTENMENT_COMMS is " + id);
351 }
352
353 // Parse WINID
354 Pattern winIdPat = Pattern.compile("WINID\\s+(\\p{XDigit}{0,8})");
355 try {
356 Matcher match = winIdPat.matcher(id);
357 if (match.matches()) {
358 if (log.isLoggable(PlatformLogger.Level.FINEST)) {
359 log.finest("Match group count: " + match.groupCount());
360 }
361 String longId = match.group(1);
362 if (log.isLoggable(PlatformLogger.Level.FINEST)) {
363 log.finest("Match group 1 " + longId);
364 }
365 long winid = Long.parseLong(longId, 16);
366 if (log.isLoggable(PlatformLogger.Level.FINER)) {
367 log.finer("Enlightenment communication window " + winid);
368 }
369 return winid;
370 } else {
371 log.finer("ENLIGHTENMENT_COMMS has wrong format");
372 return 0;
373 }
374 } catch (Exception e) {
375 if (log.isLoggable(PlatformLogger.Level.FINER)) {
376 e.printStackTrace();
377 }
378 return 0;
379 }
380 } finally {
381 getter.dispose();
382 }
383 }
384
385 /*
386 * Is Enlightenment WM running? Congruent to awt_wm_checkAnchor, but
387 * uses STRING property peculiar to Enlightenment.
388 */
389 static boolean isEnlightenment() {
390
391 long root_xref = getECommsWindowIDProperty(XToolkit.getDefaultRootWindow());
392 if (root_xref == 0) {
393 return false;
394 }
395
396 long self_xref = getECommsWindowIDProperty(root_xref);
397 if (self_xref != root_xref) {
398 return false;
399 }
400
401 return true;
402 }
403
404 /*
405 * Is CDE running?
406 *
407 * XXX: This is hairy... CDE is MWM as well. It seems we simply test
408 * for default setup and will be bitten if user changes things...
409 *
410 * Check for _DT_SM_WINDOW_INFO(_DT_SM_WINDOW_INFO) on root. Take the
411 * second element of the property and check for presence of
412 * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window.
413 *
414 * XXX: Any header that defines this structures???
415 */
416 static final XAtom XA_DT_SM_WINDOW_INFO = new XAtom("_DT_SM_WINDOW_INFO", false);
417 static final XAtom XA_DT_SM_STATE_INFO = new XAtom("_DT_SM_STATE_INFO", false);
418 static boolean isCDE() {
419
420 if (!XA_DT_SM_WINDOW_INFO.isInterned()) {
421 if (log.isLoggable(PlatformLogger.Level.FINER)) {
422 log.finer("{0} is not interned", XA_DT_SM_WINDOW_INFO);
423 }
424 return false;
425 }
426
427 WindowPropertyGetter getter =
428 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
429 XA_DT_SM_WINDOW_INFO, 0, 2,
430 false, XA_DT_SM_WINDOW_INFO);
431 try {
432 int status = getter.execute();
433 if (status != XConstants.Success || getter.getData() == 0) {
434 log.finer("Getting of _DT_SM_WINDOW_INFO is not successfull");
435 return false;
436 }
437 if (getter.getActualType() != XA_DT_SM_WINDOW_INFO.getAtom()
438 || getter.getActualFormat() != 32
439 || getter.getNumberOfItems() != 2 || getter.getBytesAfter() != 0)
440 {
441 log.finer("Wrong format of _DT_SM_WINDOW_INFO");
442 return false;
443 }
444
445 long wmwin = Native.getWindow(getter.getData(), 1); //unsafe.getInt(getter.getData()+4);
446
447 if (wmwin == 0) {
448 log.fine("WARNING: DT_SM_WINDOW_INFO exists but returns zero windows");
449 return false;
450 }
451
452 /* Now check that this window has _DT_SM_STATE_INFO (ignore contents) */
453 if (!XA_DT_SM_STATE_INFO.isInterned()) {
454 if (log.isLoggable(PlatformLogger.Level.FINER)) {
455 log.finer("{0} is not interned", XA_DT_SM_STATE_INFO);
456 }
457 return false;
458 }
459 WindowPropertyGetter getter2 =
460 new WindowPropertyGetter(wmwin, XA_DT_SM_STATE_INFO, 0, 1,
461 false, XA_DT_SM_STATE_INFO);
462 try {
463 status = getter2.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance());
464
465
466 if (status != XConstants.Success || getter2.getData() == 0) {
467 log.finer("Getting of _DT_SM_STATE_INFO is not successfull");
468 return false;
469 }
470 if (getter2.getActualType() != XA_DT_SM_STATE_INFO.getAtom()
471 || getter2.getActualFormat() != 32)
472 {
473 log.finer("Wrong format of _DT_SM_STATE_INFO");
474 return false;
475 }
476
477 return true;
478 } finally {
479 getter2.dispose();
480 }
481 } finally {
482 getter.dispose();
483 }
484 }
485
486 /*
487 * Is MWM running? (Note that CDE will test positive as well).
488 *
489 * Check for _MOTIF_WM_INFO(_MOTIF_WM_INFO) on root. Take the
490 * second element of the property and check for presence of
491 * _DT_SM_STATE_INFO(_DT_SM_STATE_INFO) on that window.
492 */
493 static final XAtom XA_MOTIF_WM_INFO = new XAtom("_MOTIF_WM_INFO", false);
494 static final XAtom XA_DT_WORKSPACE_CURRENT = new XAtom("_DT_WORKSPACE_CURRENT", false);
495 static boolean isMotif() {
496
497 if (!(XA_MOTIF_WM_INFO.isInterned()/* && XA_DT_WORKSPACE_CURRENT.isInterned()*/) ) {
498 return false;
499 }
500
501 WindowPropertyGetter getter =
502 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
503 XA_MOTIF_WM_INFO, 0,
504 MWMConstants.PROP_MOTIF_WM_INFO_ELEMENTS,
505 false, XA_MOTIF_WM_INFO);
506 try {
507 int status = getter.execute();
508
509 if (status != XConstants.Success || getter.getData() == 0) {
510 return false;
511 }
512
513 if (getter.getActualType() != XA_MOTIF_WM_INFO.getAtom()
514 || getter.getActualFormat() != 32
515 || getter.getNumberOfItems() != MWMConstants.PROP_MOTIF_WM_INFO_ELEMENTS
516 || getter.getBytesAfter() != 0)
517 {
518 return false;
519 }
520
521 long wmwin = Native.getLong(getter.getData(), 1);
522 if (wmwin != 0) {
523 if (XA_DT_WORKSPACE_CURRENT.isInterned()) {
524 /* Now check that this window has _DT_WORKSPACE_CURRENT */
525 XAtom[] curws = XA_DT_WORKSPACE_CURRENT.getAtomListProperty(wmwin);
526 if (curws.length == 0) {
527 return false;
528 }
529 return true;
530 } else {
531 // No DT_WORKSPACE, however in our tests MWM sometimes can be without desktop -
532 // and that is still MWM. So simply check for the validity of this window
533 // (through WM_STATE property).
534 WindowPropertyGetter state_getter =
535 new WindowPropertyGetter(wmwin,
536 XA_WM_STATE,
537 0, 1, false,
538 XA_WM_STATE);
539 try {
540 if (state_getter.execute() == XConstants.Success &&
541 state_getter.getData() != 0 &&
542 state_getter.getActualType() == XA_WM_STATE.getAtom())
543 {
544 return true;
545 }
546 } finally {
547 state_getter.dispose();
548 }
549 }
550 }
551 } finally {
552 getter.dispose();
553 }
554 return false;
555 }
556
557 /*
558 * Is Sawfish running?
559 */
560 static boolean isSawfish() {
561 return isNetWMName("Sawfish");
562 }
563
564 /*
565 * Is KDE2 (KWin) running?
566 */
567 static boolean isKDE2() {
568 return isNetWMName("KWin");
569 }
570
571 static boolean isCompiz() {
572 return isNetWMName("compiz");
573 }
574
575 static boolean isLookingGlass() {
576 return isNetWMName("LG3D");
577 }
578
579 static boolean isCWM() {
580 return isNetWMName("CWM");
581 }
582
583 /*
584 * Is Metacity running?
585 */
586 static boolean isMetacity() {
587 return isNetWMName("Metacity");
588 // || (
589 // XA_NET_SUPPORTING_WM_CHECK.
590 // getIntProperty(XToolkit.getDefaultRootWindow(), XA_NET_SUPPORTING_WM_CHECK.
591 // getIntProperty(XToolkit.getDefaultRootWindow(), XAtom.XA_CARDINAL)) == 0);
592 }
593
594 static boolean isMutter() {
595 return isNetWMName("Mutter") || isNetWMName("GNOME Shell");
596 }
597
598 static boolean isNonReparentingWM() {
599 return (XWM.getWMID() == XWM.COMPIZ_WM || XWM.getWMID() == XWM.LG3D_WM || XWM.getWMID() == XWM.CWM_WM);
600 }
601
602 /*
603 * Prepare IceWM check.
604 *
605 * The only way to detect IceWM, seems to be by setting
606 * _ICEWM_WINOPTHINT(_ICEWM_WINOPTHINT/8) on root and checking if it
607 * was immediately deleted by IceWM.
608 *
609 * But messing with PropertyNotify here is way too much trouble, so
610 * approximate the check by setting the property in this function and
611 * checking if it still exists later on.
612 *
613 * Gaa, dirty dances...
614 */
615 static final XAtom XA_ICEWM_WINOPTHINT = new XAtom("_ICEWM_WINOPTHINT", false);
616 static final char opt[] = {
617 'A','W','T','_','I','C','E','W','M','_','T','E','S','T','\0',
618 'a','l','l','W','o','r','k','s','p','a','c','e','s','\0',
619 '0','\0'
620 };
621 static boolean prepareIsIceWM() {
622 /*
623 * Choose something innocuous: "AWT_ICEWM_TEST allWorkspaces 0".
624 * IceWM expects "class\0option\0arg\0" with zero bytes as delimiters.
625 */
626
627 if (!XA_ICEWM_WINOPTHINT.isInterned()) {
628 if (log.isLoggable(PlatformLogger.Level.FINER)) {
629 log.finer("{0} is not interned", XA_ICEWM_WINOPTHINT);
630 }
631 return false;
632 }
633
634 XToolkit.awtLock();
635 try {
636 XErrorHandlerUtil.WITH_XERROR_HANDLER(XErrorHandler.VerifyChangePropertyHandler.getInstance());
637 XlibWrapper.XChangePropertyS(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
638 XA_ICEWM_WINOPTHINT.getAtom(),
639 XA_ICEWM_WINOPTHINT.getAtom(),
640 8, XConstants.PropModeReplace,
641 new String(opt));
642 XErrorHandlerUtil.RESTORE_XERROR_HANDLER();
643
644 if ((XErrorHandlerUtil.saved_error != null) &&
645 (XErrorHandlerUtil.saved_error.get_error_code() != XConstants.Success)) {
646 log.finer("Erorr getting XA_ICEWM_WINOPTHINT property");
647 return false;
648 }
649 log.finer("Prepared for IceWM detection");
650 return true;
651 } finally {
652 XToolkit.awtUnlock();
653 }
654 }
655
656 /*
657 * Is IceWM running?
658 *
659 * Note well: Only call this if awt_wm_prepareIsIceWM succeeded, or a
660 * false positive will be reported.
661 */
662 static boolean isIceWM() {
663 if (!XA_ICEWM_WINOPTHINT.isInterned()) {
664 if (log.isLoggable(PlatformLogger.Level.FINER)) {
665 log.finer("{0} is not interned", XA_ICEWM_WINOPTHINT);
666 }
667 return false;
668 }
669
670 WindowPropertyGetter getter =
671 new WindowPropertyGetter(XToolkit.getDefaultRootWindow(),
672 XA_ICEWM_WINOPTHINT, 0, 0xFFFF,
673 true, XA_ICEWM_WINOPTHINT);
674 try {
675 int status = getter.execute();
676 boolean res = (status == XConstants.Success && getter.getActualType() != 0);
677 if (log.isLoggable(PlatformLogger.Level.FINER)) {
678 log.finer("Status getting XA_ICEWM_WINOPTHINT: " + !res);
679 }
680 return !res || isNetWMName("IceWM");
681 } finally {
682 getter.dispose();
683 }
684 }
685
686 /*
687 * Is OpenLook WM running?
688 *
689 * This one is pretty lame, but the only property peculiar to OLWM is
690 * _SUN_WM_PROTOCOLS(ATOM[]). Fortunately, olwm deletes it on exit.
691 */
692 static final XAtom XA_SUN_WM_PROTOCOLS = new XAtom("_SUN_WM_PROTOCOLS", false);
693 static boolean isOpenLook() {
694 if (!XA_SUN_WM_PROTOCOLS.isInterned()) {
695 return false;
696 }
697
698 XAtom[] list = XA_SUN_WM_PROTOCOLS.getAtomListProperty(XToolkit.getDefaultRootWindow());
699 return (list.length != 0);
700 }
701
702 /*
703 * Temporary error handler that checks if selecting for
704 * SubstructureRedirect failed.
705 */
706 private static boolean winmgr_running = false;
707 private static XErrorHandler detectWMHandler = new XErrorHandler.XBaseErrorHandler() {
708 @Override
709 public int handleError(long display, XErrorEvent err) {
710 if ((err.get_request_code() == XProtocolConstants.X_ChangeWindowAttributes) &&
711 (err.get_error_code() == XConstants.BadAccess))
712 {
713 winmgr_running = true;
714 return 0;
715 }
716 return super.handleError(display, err);
717 }
718 };
719
720 /*
721 * Make an educated guess about running window manager.
722 * XXX: ideally, we should detect wm restart.
723 */
724 static int awt_wmgr = XWM.UNDETERMINED_WM;
725 static XWM wm;
726 static XWM getWM() {
727 if (wm == null) {
728 wm = new XWM(awt_wmgr = getWMID()/*XWM.OTHER_WM*/);
729 }
730 return wm;
731 }
732 static int getWMID() {
733 if (insLog.isLoggable(PlatformLogger.Level.FINEST)) {
734 insLog.finest("awt_wmgr = " + awt_wmgr);
735 }
736 /*
737 * Ideally, we should support cases when a different WM is started
738 * during a Java app lifetime.
739 */
740
741 if (awt_wmgr != XWM.UNDETERMINED_WM) {
742 return awt_wmgr;
743 }
744
745 XSetWindowAttributes substruct = new XSetWindowAttributes();
746 XToolkit.awtLock();
747 try {
748 if (isNoWM()) {
749 awt_wmgr = XWM.NO_WM;
750 return awt_wmgr;
751 }
752
753 // Initialize _NET protocol - used to detect Window Manager.
754 // Later, WM will initialize its own version of protocol
755 XNETProtocol l_net_protocol = g_net_protocol = new XNETProtocol();
756 l_net_protocol.detect();
757 if (log.isLoggable(PlatformLogger.Level.FINE) && l_net_protocol.active()) {
758 log.fine("_NET_WM_NAME is " + l_net_protocol.getWMName());
759 }
760 XWINProtocol win = g_win_protocol = new XWINProtocol();
761 win.detect();
762
763 /* actual check for IceWM to follow below */
764 boolean doIsIceWM = prepareIsIceWM(); /* and let IceWM to act */
765
766 /*
767 * Ok, some WM is out there. Check which one by testing for
768 * "distinguishing" atoms.
769 */
770 if (isEnlightenment()) {
771 awt_wmgr = XWM.ENLIGHTEN_WM;
772 } else if (isMetacity()) {
773 awt_wmgr = XWM.METACITY_WM;
774 } else if (isMutter()) {
775 awt_wmgr = XWM.MUTTER_WM;
776 } else if (isSawfish()) {
777 awt_wmgr = XWM.SAWFISH_WM;
778 } else if (isKDE2()) {
779 awt_wmgr =XWM.KDE2_WM;
780 } else if (isCompiz()) {
781 awt_wmgr = XWM.COMPIZ_WM;
782 } else if (isLookingGlass()) {
783 awt_wmgr = LG3D_WM;
784 } else if (isCWM()) {
785 awt_wmgr = CWM_WM;
786 } else if (doIsIceWM && isIceWM()) {
787 awt_wmgr = XWM.ICE_WM;
788 }
789 /*
790 * We don't check for legacy WM when we already know that WM
791 * supports WIN or _NET wm spec.
792 */
793 else if (l_net_protocol.active()) {
794 awt_wmgr = XWM.OTHER_WM;
795 } else if (win.active()) {
796 awt_wmgr = XWM.OTHER_WM;
797 }
798 /*
799 * Check for legacy WMs.
800 */
801 else if (isCDE()) { /* XXX: must come before isMotif */
802 awt_wmgr = XWM.CDE_WM;
803 } else if (isMotif()) {
804 awt_wmgr = XWM.MOTIF_WM;
805 } else if (isOpenLook()) {
806 awt_wmgr = XWM.OPENLOOK_WM;
807 } else {
808 awt_wmgr = XWM.OTHER_WM;
809 }
810
811 return awt_wmgr;
812 } finally {
813 XToolkit.awtUnlock();
814 substruct.dispose();
815 }
816 }
817
818
819 /*****************************************************************************\
820 *
821 * Size and decoration hints ...
822 *
823 \*****************************************************************************/
824
825
826 /*
827 * Remove size hints specified by the mask.
828 * XXX: Why do we need this in the first place???
829 */
830 static void removeSizeHints(XDecoratedPeer window, long mask) {
831 mask &= XUtilConstants.PMaxSize | XUtilConstants.PMinSize;
832
833 XToolkit.awtLock();
834 try {
835 XSizeHints hints = window.getHints();
836 if ((hints.get_flags() & mask) == 0) {
837 return;
838 }
839
840 hints.set_flags(hints.get_flags() & ~mask);
841 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
842 insLog.finer("Setting hints, flags " + XlibWrapper.hintsToString(hints.get_flags()));
843 }
844 XlibWrapper.XSetWMNormalHints(XToolkit.getDisplay(),
845 window.getWindow(),
846 hints.pData);
847 } finally {
848 XToolkit.awtUnlock();
849 }
850 }
851
852 /*
853 * If MWM_DECOR_ALL bit is set, then the rest of the bit-mask is taken
854 * to be subtracted from the decorations. Normalize decoration spec
855 * so that we can map motif decor to something else bit-by-bit in the
856 * rest of the code.
857 */
858 static int normalizeMotifDecor(int decorations) {
859 if ((decorations & MWMConstants.MWM_DECOR_ALL) == 0) {
860 return decorations;
861 }
862 int d = MWMConstants.MWM_DECOR_BORDER | MWMConstants.MWM_DECOR_RESIZEH
863 | MWMConstants.MWM_DECOR_TITLE
864 | MWMConstants.MWM_DECOR_MENU | MWMConstants.MWM_DECOR_MINIMIZE
865 | MWMConstants.MWM_DECOR_MAXIMIZE;
866 d &= ~decorations;
867 return d;
868 }
869
870 /*
871 * If MWM_FUNC_ALL bit is set, then the rest of the bit-mask is taken
872 * to be subtracted from the functions. Normalize function spec
873 * so that we can map motif func to something else bit-by-bit in the
874 * rest of the code.
875 */
876 static int normalizeMotifFunc(int functions) {
877 if ((functions & MWMConstants.MWM_FUNC_ALL) == 0) {
878 return functions;
879 }
880 int f = MWMConstants.MWM_FUNC_RESIZE |
881 MWMConstants.MWM_FUNC_MOVE |
882 MWMConstants.MWM_FUNC_MAXIMIZE |
883 MWMConstants.MWM_FUNC_MINIMIZE |
884 MWMConstants.MWM_FUNC_CLOSE;
885 f &= ~functions;
886 return f;
887 }
888
889 /*
890 * Infer OL properties from MWM decorations.
891 * Use _OL_DECOR_DEL(ATOM[]) to remove unwanted ones.
892 */
893 static void setOLDecor(XWindow window, boolean resizable, int decorations) {
894 if (window == null) {
895 return;
896 }
897
898 XAtomList decorDel = new XAtomList();
899 decorations = normalizeMotifDecor(decorations);
900 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
901 insLog.finer("Setting OL_DECOR to " + Integer.toBinaryString(decorations));
902 }
903 if ((decorations & MWMConstants.MWM_DECOR_TITLE) == 0) {
904 decorDel.add(XA_OL_DECOR_HEADER);
905 }
906 if ((decorations & (MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE)) == 0) {
907 decorDel.add(XA_OL_DECOR_RESIZE);
908 }
909 if ((decorations & (MWMConstants.MWM_DECOR_MENU |
910 MWMConstants.MWM_DECOR_MAXIMIZE |
911 MWMConstants.MWM_DECOR_MINIMIZE)) == 0)
912 {
913 decorDel.add(XA_OL_DECOR_CLOSE);
914 }
915 if (decorDel.size() == 0) {
916 insLog.finer("Deleting OL_DECOR");
917 XA_OL_DECOR_DEL.DeleteProperty(window);
918 } else {
919 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
920 insLog.finer("Setting OL_DECOR to " + decorDel);
921 }
922 XA_OL_DECOR_DEL.setAtomListProperty(window, decorDel);
923 }
924 }
925
926 /*
927 * Set MWM decorations. Set MWM functions depending on resizability.
928 */
929 static void setMotifDecor(XWindow window, boolean resizable, int decorations, int functions) {
930 /* Apparently some WMs don't implement MWM_*_ALL semantic correctly */
931 if ((decorations & MWMConstants.MWM_DECOR_ALL) != 0
932 && (decorations != MWMConstants.MWM_DECOR_ALL))
933 {
934 decorations = normalizeMotifDecor(decorations);
935 }
936 if ((functions & MWMConstants.MWM_FUNC_ALL) != 0
937 && (functions != MWMConstants.MWM_FUNC_ALL))
938 {
939 functions = normalizeMotifFunc(functions);
940 }
941
942 PropMwmHints hints = window.getMWMHints();
943 hints.set_flags(hints.get_flags() |
944 MWMConstants.MWM_HINTS_FUNCTIONS |
945 MWMConstants.MWM_HINTS_DECORATIONS);
946 hints.set_functions(functions);
947 hints.set_decorations(decorations);
948
949 if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
950 stateLog.finer("Setting MWM_HINTS to " + hints);
951 }
952 window.setMWMHints(hints);
953 }
954
955 /*
956 * Under some window managers if shell is already mapped, we MUST
957 * unmap and later remap in order to effect the changes we make in the
958 * window manager decorations.
959 *
960 * N.B. This unmapping / remapping of the shell exposes a bug in
961 * X/Motif or the Motif Window Manager. When you attempt to map a
962 * widget which is positioned (partially) off-screen, the window is
963 * relocated to be entirely on screen. Good idea. But if both the x
964 * and the y coordinates are less than the origin (0,0), the first
965 * (re)map will move the window to the origin, and any subsequent
966 * (re)map will relocate the window at some other point on the screen.
967 * I have written a short Motif test program to discover this bug.
968 * This should occur infrequently and it does not cause any real
969 * problem. So for now we'll let it be.
970 */
971 static boolean needRemap(XDecoratedPeer window) {
972 // Don't remap EmbeddedFrame,
973 // e.g. for TrayIcon it causes problems.
974 return !window.isEmbedded();
975 }
976
977 /*
978 * Set decoration hints on the shell to wdata->decor adjusted
979 * appropriately if not resizable.
980 */
981 static void setShellDecor(XDecoratedPeer window) {
982 int decorations = window.getDecorations();
983 int functions = window.getFunctions();
984 boolean resizable = window.isResizable();
985
986 if (!resizable) {
987 if ((decorations & MWMConstants.MWM_DECOR_ALL) != 0) {
988 decorations |= MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE;
989 } else {
990 decorations &= ~(MWMConstants.MWM_DECOR_RESIZEH | MWMConstants.MWM_DECOR_MAXIMIZE);
991 }
992 }
993 setMotifDecor(window, resizable, decorations, functions);
994 setOLDecor(window, resizable, decorations);
995
996 /* Some WMs need remap to redecorate the window */
997 if (window.isShowing() && needRemap(window)) {
998 /*
999 * Do the re/mapping at the Xlib level. Since we essentially
1000 * work around a WM bug we don't want this hack to be exposed
1001 * to Intrinsics (i.e. don't mess with grabs, callbacks etc).
1002 */
1003 window.xSetVisible(false);
1004 XToolkit.XSync();
1005 window.xSetVisible(true);
1006 }
1007 }
1008
1009 /*
1010 * Make specified shell resizable.
1011 */
1012 static void setShellResizable(XDecoratedPeer window) {
1013 if (insLog.isLoggable(PlatformLogger.Level.FINE)) {
1014 insLog.fine("Setting shell resizable " + window);
1015 }
1016 XToolkit.awtLock();
1017 try {
1018 Rectangle shellBounds = window.getShellBounds();
1019 shellBounds.translate(-window.currentInsets.left, -window.currentInsets.top);
1020 window.updateSizeHints(window.getDimensions());
1021 requestWMExtents(window.getWindow());
1022 XlibWrapper.XMoveResizeWindow(XToolkit.getDisplay(), window.getShell(),
1023 shellBounds.x, shellBounds.y, shellBounds.width, shellBounds.height);
1024 /* REMINDER: will need to revisit when setExtendedStateBounds is added */
1025 //Fix for 4320050: Minimum size for java.awt.Frame is not being enforced.
1026 //We need to update frame's minimum size, not to reset it
1027 removeSizeHints(window, XUtilConstants.PMaxSize);
1028 window.updateMinimumSize();
1029
1030 /* Restore decorations */
1031 setShellDecor(window);
1032 } finally {
1033 XToolkit.awtUnlock();
1034 }
1035 }
1036
1037 /*
1038 * Make specified shell non-resizable.
1039 * If justChangeSize is false, update decorations as well.
1040 * @param shellBounds bounds of the shell window
1041 */
1042 static void setShellNotResizable(XDecoratedPeer window, WindowDimensions newDimensions, Rectangle shellBounds,
1043 boolean justChangeSize)
1044 {
1045 if (insLog.isLoggable(PlatformLogger.Level.FINE)) {
1046 insLog.fine("Setting non-resizable shell " + window + ", dimensions " + newDimensions +
1047 ", shellBounds " + shellBounds +", just change size: " + justChangeSize);
1048 }
1049 XToolkit.awtLock();
1050 try {
1051 /* Fix min/max size hints at the specified values */
1052 if (!shellBounds.isEmpty()) {
1053 window.updateSizeHints(newDimensions);
1054 requestWMExtents(window.getWindow());
1055 XToolkit.XSync();
1056 XlibWrapper.XMoveResizeWindow(XToolkit.getDisplay(), window.getShell(),
1057 shellBounds.x, shellBounds.y, shellBounds.width, shellBounds.height);
1058 }
1059 if (!justChangeSize) { /* update decorations */
1060 setShellDecor(window);
1061 }
1062 } finally {
1063 XToolkit.awtUnlock();
1064 }
1065 }
1066
1067 /*****************************************************************************\
1068 * Protocols support
1069 */
1070 private HashMap<Class<?>, Collection<?>> protocolsMap = new HashMap<Class<?>, Collection<?>>();
1071 /**
1072 * Returns all protocols supporting given protocol interface
1073 */
1074 <T> Collection<T> getProtocols(Class<T> protocolInterface) {
1075 @SuppressWarnings("unchecked")
1076 Collection<T> res = (Collection<T>) protocolsMap.get(protocolInterface);
1077 if (res != null) {
1078 return res;
1079 } else {
1080 return new LinkedList<T>();
1081 }
1082 }
1083
1084 private <T> void addProtocol(Class<T> protocolInterface, T protocol) {
1085 Collection<T> protocols = getProtocols(protocolInterface);
1086 protocols.add(protocol);
1087 protocolsMap.put(protocolInterface, protocols);
1088 }
1089
1090 boolean supportsDynamicLayout() {
1091 int wm = getWMID();
1092 switch (wm) {
1093 case XWM.ENLIGHTEN_WM:
1094 case XWM.KDE2_WM:
1095 case XWM.SAWFISH_WM:
1096 case XWM.ICE_WM:
1097 case XWM.METACITY_WM:
1098 return true;
1099 case XWM.OPENLOOK_WM:
1100 case XWM.MOTIF_WM:
1101 case XWM.CDE_WM:
1102 return false;
1103 default:
1104 return false;
1105 }
1106 }
1107
1108
1109 /**
1110 * Check if state is supported.
1111 * Note that a compound state is always reported as not supported.
1112 * Note also that MAXIMIZED_BOTH is considered not a compound state.
1113 * Therefore, a compound state is just ICONIFIED | anything else.
1114 *
1115 */
1116 boolean supportsExtendedState(int state) {
1117 switch (state) {
1118 case Frame.MAXIMIZED_VERT:
1119 case Frame.MAXIMIZED_HORIZ:
1120 /*
1121 * WMs that talk NET/WIN protocol, but do not support
1122 * unidirectional maximization.
1123 */
1124 if (getWMID() == METACITY_WM) {
1125 /* "This is a deliberate policy decision." -hp */
1126 return false;
1127 }
1128 /* FALLTROUGH */
1129 case Frame.MAXIMIZED_BOTH:
1130 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1131 if (proto.supportsState(state)) {
1132 return true;
1133 }
1134 }
1135 /* FALLTROUGH */
1136 default:
1137 return false;
1138 }
1139 }
1140
1141 /*****************************************************************************\
1142 *
1143 * Reading state from different protocols
1144 *
1145 \*****************************************************************************/
1146
1147
1148 int getExtendedState(XWindowPeer window) {
1149 int state = 0;
1150 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1151 state |= proto.getState(window);
1152 }
1153 if (state != 0) {
1154 return state;
1155 } else {
1156 return Frame.NORMAL;
1157 }
1158 }
1159
1160 /*****************************************************************************\
1161 *
1162 * Notice window state change when WM changes a property on the window ...
1163 *
1164 \*****************************************************************************/
1165
1166
1167 /*
1168 * Check if property change is a window state protocol message.
1169 */
1170 boolean isStateChange(XDecoratedPeer window, XPropertyEvent e) {
1171 if (!window.isShowing()) {
1172 stateLog.finer("Window is not showing");
1173 return false;
1174 }
1175
1176 int wm_state = window.getWMState();
1177 if (wm_state == XUtilConstants.WithdrawnState) {
1178 stateLog.finer("WithdrawnState");
1179 return false;
1180 } else {
1181 if (stateLog.isLoggable(PlatformLogger.Level.FINER)) {
1182 stateLog.finer("Window WM_STATE is " + wm_state);
1183 }
1184 }
1185 boolean is_state_change = false;
1186 if (e.get_atom() == XA_WM_STATE.getAtom()) {
1187 is_state_change = true;
1188 }
1189
1190 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1191 is_state_change |= proto.isStateChange(e);
1192 if (stateLog.isLoggable(PlatformLogger.Level.FINEST)) {
1193 stateLog.finest(proto + ": is state changed = " + is_state_change);
1194 }
1195 }
1196 return is_state_change;
1197 }
1198
1199 /*
1200 * Returns current state (including extended) of a given window.
1201 */
1202 int getState(XDecoratedPeer window) {
1203 int res = 0;
1204 final int wm_state = window.getWMState();
1205 if (wm_state == XUtilConstants.IconicState) {
1206 res = Frame.ICONIFIED;
1207 } else {
1208 res = Frame.NORMAL;
1209 }
1210 res |= getExtendedState(window);
1211 return res;
1212 }
1213
1214 /*****************************************************************************\
1215 *
1216 * Setting/changing window state ...
1217 *
1218 \*****************************************************************************/
1219
1220 /**
1221 * Moves window to the specified layer, layer is one of the constants defined
1222 * in XLayerProtocol
1223 */
1224 void setLayer(XWindowPeer window, int layer) {
1225 for (XLayerProtocol proto : getProtocols(XLayerProtocol.class)) {
1226 if (proto.supportsLayer(layer)) {
1227 proto.setLayer(window, layer);
1228 }
1229 }
1230 XToolkit.XSync();
1231 }
1232
1233 void setExtendedState(XWindowPeer window, int state) {
1234 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1235 if (proto.supportsState(state)) {
1236 proto.setState(window, state);
1237 break;
1238 }
1239 }
1240
1241 if (!window.isShowing()) {
1242 /*
1243 * Purge KWM bits.
1244 * Not really tested with KWM, only with WindowMaker.
1245 */
1246 XToolkit.awtLock();
1247 try {
1248 XlibWrapper.XDeleteProperty(XToolkit.getDisplay(),
1249 window.getWindow(),
1250 XA_KWM_WIN_ICONIFIED.getAtom());
1251 XlibWrapper.XDeleteProperty(XToolkit.getDisplay(),
1252 window.getWindow(),
1253 XA_KWM_WIN_MAXIMIZED.getAtom());
1254 }
1255 finally {
1256 XToolkit.awtUnlock();
1257 }
1258 }
1259 XToolkit.XSync();
1260 }
1261
1262
1263 /*
1264 * Work around for 4775545.
1265 *
1266 * If WM exits while the top-level is shaded, the shaded hint remains
1267 * on the top-level properties. When WM restarts and sees the shaded
1268 * window it can reparent it into a "pre-shaded" decoration frame
1269 * (Metacity does), and our insets logic will go crazy, b/c it will
1270 * see a huge nagative bottom inset. There's no clean solution for
1271 * this, so let's just be weasels and drop the shaded hint if we
1272 * detect that WM exited. NB: we are in for a race condition with WM
1273 * restart here. NB2: e.g. WindowMaker saves the state in a private
1274 * property that this code knows nothing about, so this workaround is
1275 * not effective; other WMs might play similar tricks.
1276 */
1277 void unshadeKludge(XDecoratedPeer window) {
1278 assert(window.isShowing());
1279
1280 for (XStateProtocol proto : getProtocols(XStateProtocol.class)) {
1281 proto.unshadeKludge(window);
1282 }
1283 XToolkit.XSync();
1284 }
1285
1286 static boolean inited = false;
1287 static void init() {
1288 if (inited) {
1289 return;
1290 }
1291
1292 initAtoms();
1293 getWM();
1294 inited = true;
1295 }
1296
1297 void initializeProtocols() {
1298 XNETProtocol net_protocol = g_net_protocol;
1299 if (net_protocol != null) {
1300 if (!net_protocol.active()) {
1301 net_protocol = null;
1302 } else {
1303 if (net_protocol.doStateProtocol()) {
1304 addProtocol(XStateProtocol.class, net_protocol);
1305 }
1306 if (net_protocol.doLayerProtocol()) {
1307 addProtocol(XLayerProtocol.class, net_protocol);
1308 }
1309 }
1310 }
1311
1312 XWINProtocol win = g_win_protocol;
1313 if (win != null) {
1314 if (win.active()) {
1315 if (win.doStateProtocol()) {
1316 addProtocol(XStateProtocol.class, win);
1317 }
1318 if (win.doLayerProtocol()) {
1319 addProtocol(XLayerProtocol.class, win);
1320 }
1321 }
1322 }
1323 }
1324
1325 HashMap<Class<?>, Insets> storedInsets = new HashMap<>();
1326 Insets guessInsets(XDecoratedPeer window) {
1327 Insets res = storedInsets.get(window.getClass());
1328 if (res == null) {
1329 switch (WMID) {
1330 case ENLIGHTEN_WM:
1331 res = new Insets(19, 4, 4, 4);
1332 break;
1333 case CDE_WM:
1334 res = new Insets(28, 6, 6, 6);
1335 break;
1336 case NO_WM:
1337 case LG3D_WM:
1338 res = zeroInsets;
1339 break;
1340 case MOTIF_WM:
1341 case OPENLOOK_WM:
1342 default:
1343 res = defaultInsets;
1344 }
1345 }
1346 if (insLog.isLoggable(PlatformLogger.Level.FINEST)) {
1347 insLog.finest("WM guessed insets: " + res);
1348 }
1349 return res;
1350 }
1351 /*
1352 * Some buggy WMs ignore window gravity when processing
1353 * ConfigureRequest and position window as if the gravity is Static.
1354 * We work around this in MWindowPeer.pReshape().
1355 *
1356 * Starting with 1.5 we have introduced an Environment variable
1357 * _JAVA_AWT_WM_STATIC_GRAVITY that can be set to indicate to Java
1358 * explicitly that the WM has this behaviour, example is FVWM.
1359 */
1360
1361 static int awtWMStaticGravity = -1;
1362 static boolean configureGravityBuggy() {
1363
1364 if (awtWMStaticGravity == -1) {
1365 awtWMStaticGravity = (XToolkit.getEnv("_JAVA_AWT_WM_STATIC_GRAVITY") != null) ? 1 : 0;
1366 }
1367
1368 if (awtWMStaticGravity == 1) {
1369 return true;
1370 }
1371
1372 switch(getWMID()) {
1373 case XWM.ICE_WM:
1374 /*
1375 * See bug #228981 at IceWM's SourceForge pages.
1376 * Latest stable version 1.0.8-6 still has this problem.
1377 */
1378 /**
1379 * Version 1.2.2 doesn't have this problem
1380 */
1381 // Detect IceWM version
1382 if (g_net_protocol != null) {
1383 String wm_name = g_net_protocol.getWMName();
1384 Pattern pat = Pattern.compile("^IceWM (\\d+)\\.(\\d+)\\.(\\d+).*$");
1385 try {
1386 Matcher match = pat.matcher(wm_name);
1387 if (match.matches()) {
1388 int v1 = Integer.parseInt(match.group(1));
1389 int v2 = Integer.parseInt(match.group(2));
1390 int v3 = Integer.parseInt(match.group(3));
1391 return !(v1 > 1 || (v1 == 1 && (v2 > 2 || (v2 == 2 && v3 >=2))));
1392 }
1393 } catch (Exception e) {
1394 return true;
1395 }
1396 }
1397 return true;
1398 case XWM.ENLIGHTEN_WM:
1399 /* At least E16 is buggy. */
1400 return true;
1401 default:
1402 return false;
1403 }
1404 }
1405
1406 /*
1407 * @return if WM implements the insets property - returns insets with values
1408 * specified in that property, null otherwise.
1409 */
1410 public static Insets getInsetsFromExtents(long window) {
1411 if (window == XConstants.None) {
1412 return null;
1413 }
1414 XNETProtocol net_protocol = getWM().getNETProtocol();
1415 if (net_protocol != null && net_protocol.active()) {
1416 Insets insets = getInsetsFromProp(window, XA_NET_FRAME_EXTENTS);
1417 if (insLog.isLoggable(PlatformLogger.Level.FINE)) {
1418 insLog.fine("_NET_FRAME_EXTENTS: {0}", insets);
1419 }
1420
1421 if (insets != null) {
1422 return insets;
1423 }
1424 }
1425 switch(getWMID()) {
1426 case XWM.KDE2_WM:
1427 return getInsetsFromProp(window, XA_KDE_NET_WM_FRAME_STRUT);
1428 case XWM.ENLIGHTEN_WM:
1429 return getInsetsFromProp(window, XA_E_FRAME_SIZE);
1430 default:
1431 return null;
1432 }
1433 }
1434
1435 /**
1436 * Helper function reads property of type CARDINAL[4] = { left, right, top, bottom }
1437 * and converts it to Insets object.
1438 */
1439 public static Insets getInsetsFromProp(long window, XAtom atom) {
1440 if (window == XConstants.None) {
1441 return null;
1442 }
1443
1444 WindowPropertyGetter getter =
1445 new WindowPropertyGetter(window, atom,
1446 0, 4, false, XAtom.XA_CARDINAL);
1447 try {
1448 if (getter.execute() != XConstants.Success
1449 || getter.getData() == 0
1450 || getter.getActualType() != XAtom.XA_CARDINAL
1451 || getter.getActualFormat() != 32)
1452 {
1453 return null;
1454 } else {
1455 return new Insets((int)Native.getCard32(getter.getData(), 2), // top
1456 (int)Native.getCard32(getter.getData(), 0), // left
1457 (int)Native.getCard32(getter.getData(), 3), // bottom
1458 (int)Native.getCard32(getter.getData(), 1)); // right
1459 }
1460 } finally {
1461 getter.dispose();
1462 }
1463 }
1464
1465 /**
1466 * Asks WM to fill Frame Extents (insets) for the window.
1467 */
1468 public static void requestWMExtents(long window) {
1469 if (window == XConstants.None) { // not initialized
1470 return;
1471 }
1472
1473 log.fine("Requesting FRAME_EXTENTS");
1474
1475 XClientMessageEvent msg = new XClientMessageEvent();
1476 msg.zero();
1477 msg.set_type(XConstants.ClientMessage);
1478 msg.set_display(XToolkit.getDisplay());
1479 msg.set_window(window);
1480 msg.set_format(32);
1481 XToolkit.awtLock();
1482 try {
1483 XNETProtocol net_protocol = getWM().getNETProtocol();
1484 if (net_protocol != null && net_protocol.active()) {
1485 msg.set_message_type(XA_NET_REQUEST_FRAME_EXTENTS.getAtom());
1486 XlibWrapper.XSendEvent(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
1487 false,
1488 XConstants.SubstructureRedirectMask | XConstants.SubstructureNotifyMask,
1489 msg.getPData());
1490 }
1491 if (getWMID() == XWM.KDE2_WM) {
1492 msg.set_message_type(XA_KDE_NET_WM_FRAME_STRUT.getAtom());
1493 XlibWrapper.XSendEvent(XToolkit.getDisplay(), XToolkit.getDefaultRootWindow(),
1494 false,
1495 XConstants.SubstructureRedirectMask | XConstants.SubstructureNotifyMask,
1496 msg.getPData());
1497 }
1498 // XXX: should we wait for response? XIfEvent() would be useful here :)
1499 } finally {
1500 XToolkit.awtUnlock();
1501 msg.dispose();
1502 }
1503 }
1504
1505 /* syncTopLEvelPos() is necessary to insure that the window manager has in
1506 * fact moved us to our final position relative to the reParented WM window.
1507 * We have noted a timing window which our shell has not been moved so we
1508 * screw up the insets thinking they are 0,0. Wait (for a limited period of
1509 * time to let the WM hava a chance to move us.
1510 * @param window window ID of the shell, assuming it is the window
1511 * which will NOT have zero coordinates after the complete
1512 * reparenting
1513 */
1514 boolean syncTopLevelPos(long window, XWindowAttributes attrs) {
1515 int tries = 0;
1516 XToolkit.awtLock();
1517 try {
1518 do {
1519 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(), window, attrs.pData);
1520 if (attrs.get_x() != 0 || attrs.get_y() != 0) {
1521 return true;
1522 }
1523 tries++;
1524 XToolkit.XSync();
1525 } while (tries < 50);
1526 }
1527 finally {
1528 XToolkit.awtUnlock();
1529 }
1530 return false;
1531 }
1532
1533 Insets getInsets(XDecoratedPeer win, long window, long parent) {
1534 /*
1535 * Unfortunately the concept of "insets" borrowed to AWT
1536 * from Win32 is *absolutely*, *unbelievably* foreign to
1537 * X11. Few WMs provide the size of frame decor
1538 * (i.e. insets) in a property they set on the client
1539 * window, so we check if we can get away with just
1540 * peeking at it. [Future versions of wm-spec might add a
1541 * standardized hint for this].
1542 *
1543 * Otherwise we do some special casing. Actually the
1544 * fallback code ("default" case) seems to cover most of
1545 * the existing WMs (modulo Reparent/Configure order
1546 * perhaps?).
1547 *
1548 * Fallback code tries to account for the two most common cases:
1549 *
1550 * . single reparenting
1551 * parent window is the WM frame
1552 * [twm, olwm, sawfish]
1553 *
1554 * . double reparenting
1555 * parent is a lining exactly the size of the client
1556 * grandpa is the WM frame
1557 * [mwm, e!, kwin, fvwm2 ... ]
1558 */
1559 Insets correctWM = XWM.getInsetsFromExtents(window);
1560 if (insLog.isLoggable(PlatformLogger.Level.FINER)) {
1561 insLog.finer("Got insets from property: {0}", correctWM);
1562 }
1563
1564 if (correctWM == null) {
1565 correctWM = new Insets(0,0,0,0);
1566
1567 correctWM.top = -1;
1568 correctWM.left = -1;
1569
1570 XWindowAttributes lwinAttr = new XWindowAttributes();
1571 XWindowAttributes pattr = new XWindowAttributes();
1572 try {
1573 switch (XWM.getWMID()) {
1574 /* should've been done in awt_wm_getInsetsFromProp */
1575 case XWM.ENLIGHTEN_WM: {
1576 /* enlightenment does double reparenting */
1577 syncTopLevelPos(parent, lwinAttr);
1578 correctWM.left = lwinAttr.get_x();
1579 correctWM.top = lwinAttr.get_y();
1580 /*
1581 * Now get the actual dimensions of the parent window
1582 * resolve the difference. We can't rely on the left
1583 * to be equal to right or bottom... Enlightment
1584 * breaks that assumption.
1585 */
1586 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1587 XlibUtil.getParentWindow(parent),
1588 pattr.pData);
1589 correctWM.right = pattr.get_width() -
1590 (lwinAttr.get_width() + correctWM.left);
1591 correctWM.bottom = pattr.get_height() -
1592 (lwinAttr.get_height() + correctWM.top);
1593
1594 break;
1595 }
1596 case XWM.ICE_WM: // for 1.2.2.
1597 case XWM.KDE2_WM: /* should've been done in getInsetsFromProp */
1598 case XWM.CDE_WM:
1599 case XWM.MOTIF_WM: {
1600 /* these are double reparenting too */
1601 if (syncTopLevelPos(parent, lwinAttr)) {
1602 correctWM.top = lwinAttr.get_y();
1603 correctWM.left = lwinAttr.get_x();
1604 correctWM.right = correctWM.left;
1605 correctWM.bottom = correctWM.left;
1606 } else {
1607 return null;
1608 }
1609 break;
1610 }
1611 case XWM.SAWFISH_WM:
1612 case XWM.OPENLOOK_WM: {
1613 /* single reparenting */
1614 syncTopLevelPos(window, lwinAttr);
1615 correctWM.top = lwinAttr.get_y();
1616 correctWM.left = lwinAttr.get_x();
1617 correctWM.right = correctWM.left;
1618 correctWM.bottom = correctWM.left;
1619 break;
1620 }
1621 case XWM.OTHER_WM:
1622 default: { /* this is very similar to the E! case above */
1623 if (insLog.isLoggable(PlatformLogger.Level.FINEST)) {
1624 insLog.finest("Getting correct insets for OTHER_WM/default, parent: {0}", parent);
1625 }
1626 syncTopLevelPos(parent, lwinAttr);
1627 int status = XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1628 window, lwinAttr.pData);
1629 status = XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1630 parent, pattr.pData);
1631 if (lwinAttr.get_root() == parent) {
1632 insLog.finest("our parent is root so insets should be zero");
1633 correctWM = new Insets(0, 0, 0, 0);
1634 break;
1635 }
1636
1637 /*
1638 * Check for double-reparenting WM.
1639 *
1640 * If the parent is exactly the same size as the
1641 * top-level assume taht it's the "lining" window and
1642 * that the grandparent is the actual frame (NB: we
1643 * have already handled undecorated windows).
1644 *
1645 * XXX: what about timing issues that syncTopLevelPos
1646 * is supposed to work around?
1647 */
1648 if (lwinAttr.get_x() == 0 && lwinAttr.get_y() == 0
1649 && lwinAttr.get_width()+2*lwinAttr.get_border_width() == pattr.get_width()
1650 && lwinAttr.get_height()+2*lwinAttr.get_border_width() == pattr.get_height())
1651 {
1652 if (insLog.isLoggable(PlatformLogger.Level.FINEST)) {
1653 insLog.finest("Double reparenting detected, pattr({2})={0}, lwinAttr({3})={1}",
1654 lwinAttr, pattr, parent, window);
1655 }
1656 lwinAttr.set_x(pattr.get_x());
1657 lwinAttr.set_y(pattr.get_y());
1658 lwinAttr.set_border_width(lwinAttr.get_border_width()+pattr.get_border_width());
1659
1660 final long grand_parent = XlibUtil.getParentWindow(parent);
1661
1662 if (grand_parent == lwinAttr.get_root()) {
1663 // This is not double-reparenting in a
1664 // general sense - we simply don't have
1665 // correct insets - return null to try to
1666 // get insets later
1667 return null;
1668 } else {
1669 parent = grand_parent;
1670 XlibWrapper.XGetWindowAttributes(XToolkit.getDisplay(),
1671 parent,
1672 pattr.pData);
1673 }
1674 }
1675 /*
1676 * XXX: To be absolutely correct, we'd need to take
1677 * parent's border-width into account too, but the
1678 * rest of the code is happily unaware about border
1679 * widths and inner/outer distinction, so for the time
1680 * being, just ignore it.
1681 */
1682 if (insLog.isLoggable(PlatformLogger.Level.FINEST)) {
1683 insLog.finest("Attrs before calculation: pattr({2})={0}, lwinAttr({3})={1}",
1684 lwinAttr, pattr, parent, window);
1685 }
1686 correctWM = new Insets(lwinAttr.get_y() + lwinAttr.get_border_width(),
1687 lwinAttr.get_x() + lwinAttr.get_border_width(),
1688 pattr.get_height() - (lwinAttr.get_y() + lwinAttr.get_height() + 2*lwinAttr.get_border_width()),
1689 pattr.get_width() - (lwinAttr.get_x() + lwinAttr.get_width() + 2*lwinAttr.get_border_width()));
1690 break;
1691 } /* default */
1692 } /* switch (runningWM) */
1693 } finally {
1694 lwinAttr.dispose();
1695 pattr.dispose();
1696 }
1697 }
1698 if (storedInsets.get(win.getClass()) == null) {
1699 storedInsets.put(win.getClass(), correctWM);
1700 }
1701 return correctWM;
1702 }
1703 boolean isDesktopWindow( long w ) {
1704 if (g_net_protocol != null) {
1705 XAtomList wtype = XAtom.get("_NET_WM_WINDOW_TYPE").getAtomListPropertyList( w );
1706 return wtype.contains( XAtom.get("_NET_WM_WINDOW_TYPE_DESKTOP") );
1707 } else {
1708 return false;
1709 }
1710 }
1711
1712 public XNETProtocol getNETProtocol() {
1713 return g_net_protocol;
1714 }
1715
1716 /**
1717 * Sets _NET_WN_ICON property on the window using the arrays of
1718 * raster-data for icons. If icons is null, removes _NET_WM_ICON
1719 * property.
1720 * This method invokes XNETProtocol.setWMIcon() for WMs that
1721 * support NET protocol.
1722 *
1723 * @return true if hint was modified successfully, false otherwise
1724 */
1725 public boolean setNetWMIcon(XWindowPeer window, java.util.List<IconInfo> icons) {
1726 if (g_net_protocol != null && g_net_protocol.active()) {
1727 g_net_protocol.setWMIcons(window, icons);
1728 return getWMID() != ICE_WM;
1729 }
1730 return false;
1731 }
1732 }