1 /*
2 * Copyright (c) 1996, 2010, 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 package sun.awt.windows;
26
27 import java.awt.*;
28 import java.awt.event.*;
29 import java.awt.image.*;
30 import java.awt.peer.*;
31
32 import java.beans.*;
33
34 import java.util.*;
35 import java.util.List;
36 import sun.util.logging.PlatformLogger;
37
38 import sun.awt.*;
39
40 import sun.java2d.pipe.Region;
41
42 public class WWindowPeer extends WPanelPeer implements WindowPeer,
43 DisplayChangedListener
44 {
45
46 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.windows.WWindowPeer");
47 private static final PlatformLogger screenLog = PlatformLogger.getLogger("sun.awt.windows.screen.WWindowPeer");
48
49 // we can't use WDialogPeer as blocker may be an instance of WPrintDialogPeer that
50 // extends WWindowPeer, not WDialogPeer
51 private WWindowPeer modalBlocker = null;
52
53 private boolean isOpaque;
54
55 private TranslucentWindowPainter painter;
56
57 /*
58 * A key used for storing a list of active windows in AppContext. The value
59 * is a list of windows, sorted by the time of activation: later a window is
60 * activated, greater its index is in the list.
61 */
62 private final static StringBuffer ACTIVE_WINDOWS_KEY =
63 new StringBuffer("active_windows_list");
64
65 /*
66 * Listener for 'activeWindow' KFM property changes. It is added to each
67 * AppContext KFM. See ActiveWindowListener inner class below.
68 */
69 private static PropertyChangeListener activeWindowListener =
70 new ActiveWindowListener();
71
72 /*
73 * The object is a listener for the AppContext.GUI_DISPOSED property.
74 */
75 private final static PropertyChangeListener guiDisposedListener =
76 new GuiDisposedListener();
77
78 /*
79 * Called (on the Toolkit thread) before the appropriate
80 * WindowStateEvent is posted to the EventQueue.
81 */
82 private WindowListener windowListener;
83
84 /**
85 * Initialize JNI field IDs
86 */
87 private static native void initIDs();
88 static {
89 initIDs();
90 }
91
92 // WComponentPeer overrides
93 @SuppressWarnings("unchecked")
94 protected void disposeImpl() {
95 AppContext appContext = SunToolkit.targetToAppContext(target);
96 synchronized (appContext) {
97 List<WWindowPeer> l = (List<WWindowPeer>)appContext.get(ACTIVE_WINDOWS_KEY);
98 if (l != null) {
99 l.remove(this);
100 }
101 }
102
103 // Remove ourself from the Map of DisplayChangeListeners
104 GraphicsConfiguration gc = getGraphicsConfiguration();
105 ((Win32GraphicsDevice)gc.getDevice()).removeDisplayChangedListener(this);
106
107 synchronized (getStateLock()) {
108 TranslucentWindowPainter currentPainter = painter;
109 if (currentPainter != null) {
110 currentPainter.flush();
111 // don't set the current one to null here; reduces the chances of
112 // MT issues (like NPEs)
113 }
114 }
115
116 super.disposeImpl();
117 }
118
119 // WindowPeer implementation
120
121 public void toFront() {
122 updateFocusableWindowState();
123 _toFront();
124 }
125 native void _toFront();
126 public native void toBack();
127
128 public native void setAlwaysOnTopNative(boolean value);
129 public void setAlwaysOnTop(boolean value) {
130 if ((value && ((Window)target).isVisible()) || !value) {
131 setAlwaysOnTopNative(value);
132 }
133 }
134
135 public void updateFocusableWindowState() {
136 setFocusableWindow(((Window)target).isFocusableWindow());
137 }
138 native void setFocusableWindow(boolean value);
139
140 // FramePeer & DialogPeer partial shared implementation
141
142 public void setTitle(String title) {
143 // allow a null title to pass as an empty string.
144 if (title == null) {
145 title = "";
146 }
147 _setTitle(title);
148 }
149 native void _setTitle(String title);
150
151 public void setResizable(boolean resizable) {
152 _setResizable(resizable);
153 }
154 public native void _setResizable(boolean resizable);
155
156 // Toolkit & peer internals
157
158 WWindowPeer(Window target) {
159 super(target);
160 }
161
162 void initialize() {
163 super.initialize();
164
165 updateInsets(insets_);
166
167 Font f = ((Window)target).getFont();
168 if (f == null) {
169 f = defaultFont;
170 ((Window)target).setFont(f);
171 setFont(f);
172 }
173 // Express our interest in display changes
174 GraphicsConfiguration gc = getGraphicsConfiguration();
175 ((Win32GraphicsDevice)gc.getDevice()).addDisplayChangedListener(this);
176
177 initActiveWindowsTracking((Window)target);
178
179 updateIconImages();
180
181 Shape shape = ((Window)target).getShape();
182 if (shape != null) {
183 applyShape(Region.getInstance(shape, null));
184 }
185
186 float opacity = ((Window)target).getOpacity();
187 if (opacity < 1.0f) {
188 setOpacity(opacity);
189 }
190
191 synchronized (getStateLock()) {
192 // default value of a boolean field is 'false', so set isOpaque to
193 // true here explicitly
194 this.isOpaque = true;
195 setOpaque(((Window)target).isOpaque());
196 }
197 }
198
199 native void createAwtWindow(WComponentPeer parent);
200
201 private volatile Window.Type windowType = Window.Type.NORMAL;
202
203 // This method must be called for Window, Dialog, and Frame before creating
204 // the hwnd
205 final void preCreate() {
206 windowType = ((Window)target).getType();
207 }
208
209 void create(WComponentPeer parent) {
210 preCreate();
211 createAwtWindow(parent);
212 }
213
214 @Override
215 final WComponentPeer getNativeParent() {
216 final Container parent = ((Window) target).getOwner();
217 return (WComponentPeer) WToolkit.targetToPeer(parent);
218 }
219
220 // should be overriden in WDialogPeer
221 protected void realShow() {
222 super.show();
223 }
224
225 public void show() {
226 updateFocusableWindowState();
227
228 boolean alwaysOnTop = ((Window)target).isAlwaysOnTop();
229
230 // Fix for 4868278.
231 // If we create a window with a specific GraphicsConfig, and then move it with
232 // setLocation() or setBounds() to another one before its peer has been created,
233 // then calling Window.getGraphicsConfig() returns wrong config. That may lead
234 // to some problems like wrong-placed tooltips. It is caused by calling
235 // super.displayChanged() in WWindowPeer.displayChanged() regardless of whether
236 // GraphicsDevice was really changed, or not. So we need to track it here.
237 updateGC();
238
239 realShow();
240 updateMinimumSize();
241
242 if (((Window)target).isAlwaysOnTopSupported() && alwaysOnTop) {
243 setAlwaysOnTop(alwaysOnTop);
244 }
245
246 synchronized (getStateLock()) {
247 if (!isOpaque) {
248 updateWindow(true);
249 }
250 }
251 }
252
253 // Synchronize the insets members (here & in helper) with actual window
254 // state.
255 native void updateInsets(Insets i);
256
257 static native int getSysMinWidth();
258 static native int getSysMinHeight();
259 static native int getSysIconWidth();
260 static native int getSysIconHeight();
261 static native int getSysSmIconWidth();
262 static native int getSysSmIconHeight();
263 /**windows/classes/sun/awt/windows/
264 * Creates native icon from specified raster data and updates
265 * icon for window and all descendant windows that inherit icon.
266 * Raster data should be passed in the ARGB form.
267 * Note that raster data format was changed to provide support
268 * for XP icons with alpha-channel
269 */
270 native void setIconImagesData(int[] iconRaster, int w, int h,
271 int[] smallIconRaster, int smw, int smh);
272
273 synchronized native void reshapeFrame(int x, int y, int width, int height);
274
275 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
276 if (!focusAllowedFor()) {
277 return false;
278 }
279 return requestWindowFocus(cause == CausedFocusEvent.Cause.MOUSE_EVENT);
280 }
281 public native boolean requestWindowFocus(boolean isMouseEventCause);
282
283 public boolean focusAllowedFor() {
284 Window window = (Window)this.target;
285 if (!window.isVisible() ||
286 !window.isEnabled() ||
287 !window.isFocusableWindow())
288 {
289 return false;
290 }
291 if (isModalBlocked()) {
292 return false;
293 }
294 return true;
295 }
296
297 public void hide() {
298 WindowListener listener = windowListener;
299 if (listener != null) {
300 // We're not getting WINDOW_CLOSING from the native code when hiding
301 // the window programmatically. So, create it and notify the listener.
302 listener.windowClosing(new WindowEvent((Window)target, WindowEvent.WINDOW_CLOSING));
303 }
304 super.hide();
305 }
306
307 // WARNING: it's called on the Toolkit thread!
308 void preprocessPostEvent(AWTEvent event) {
309 if (event instanceof WindowEvent) {
310 WindowListener listener = windowListener;
311 if (listener != null) {
312 switch(event.getID()) {
313 case WindowEvent.WINDOW_CLOSING:
314 listener.windowClosing((WindowEvent)event);
315 break;
316 case WindowEvent.WINDOW_ICONIFIED:
317 listener.windowIconified((WindowEvent)event);
318 break;
319 }
320 }
321 }
322 }
323
324 synchronized void addWindowListener(WindowListener l) {
325 windowListener = AWTEventMulticaster.add(windowListener, l);
326 }
327
328 synchronized void removeWindowListener(WindowListener l) {
329 windowListener = AWTEventMulticaster.remove(windowListener, l);
330 }
331
332 public void updateMinimumSize() {
333 Dimension minimumSize = null;
334 if (((Component)target).isMinimumSizeSet()) {
335 minimumSize = ((Component)target).getMinimumSize();
336 }
337 if (minimumSize != null) {
338 int msw = getSysMinWidth();
339 int msh = getSysMinHeight();
340 int w = (minimumSize.width >= msw) ? minimumSize.width : msw;
341 int h = (minimumSize.height >= msh) ? minimumSize.height : msh;
342 setMinSize(w, h);
343 } else {
344 setMinSize(0, 0);
345 }
346 }
347
348 public void updateIconImages() {
349 java.util.List<Image> imageList = ((Window)target).getIconImages();
350 if (imageList == null || imageList.size() == 0) {
351 setIconImagesData(null, 0, 0, null, 0, 0);
352 } else {
353 int w = getSysIconWidth();
354 int h = getSysIconHeight();
355 int smw = getSysSmIconWidth();
356 int smh = getSysSmIconHeight();
357 DataBufferInt iconData = SunToolkit.getScaledIconData(imageList,
358 w, h);
359 DataBufferInt iconSmData = SunToolkit.getScaledIconData(imageList,
360 smw, smh);
361 if (iconData != null && iconSmData != null) {
362 setIconImagesData(iconData.getData(), w, h,
363 iconSmData.getData(), smw, smh);
364 } else {
365 setIconImagesData(null, 0, 0, null, 0, 0);
366 }
367 }
368 }
369
370 native void setMinSize(int width, int height);
371
372 /*
373 * ---- MODALITY SUPPORT ----
374 */
375
376 /**
377 * Some modality-related code here because WFileDialogPeer, WPrintDialogPeer and
378 * WPageDialogPeer are descendants of WWindowPeer, not WDialogPeer
379 */
380
381 public boolean isModalBlocked() {
382 return modalBlocker != null;
383 }
384
385 @SuppressWarnings("deprecation")
386 public void setModalBlocked(Dialog dialog, boolean blocked) {
387 synchronized (((Component)getTarget()).getTreeLock()) // State lock should always be after awtLock
388 {
389 // use WWindowPeer instead of WDialogPeer because of FileDialogs and PrintDialogs
390 WWindowPeer blockerPeer = (WWindowPeer)dialog.getPeer();
391 if (blocked)
392 {
393 modalBlocker = blockerPeer;
394 // handle native dialogs separately, as they may have not
395 // got HWND yet; modalEnable/modalDisable is called from
396 // their setHWnd() methods
397 if (blockerPeer instanceof WFileDialogPeer) {
398 ((WFileDialogPeer)blockerPeer).blockWindow(this);
399 } else if (blockerPeer instanceof WPrintDialogPeer) {
400 ((WPrintDialogPeer)blockerPeer).blockWindow(this);
401 } else {
402 modalDisable(dialog, blockerPeer.getHWnd());
403 }
404 } else {
405 modalBlocker = null;
406 if (blockerPeer instanceof WFileDialogPeer) {
407 ((WFileDialogPeer)blockerPeer).unblockWindow(this);
408 } else if (blockerPeer instanceof WPrintDialogPeer) {
409 ((WPrintDialogPeer)blockerPeer).unblockWindow(this);
410 } else {
411 modalEnable(dialog);
412 }
413 }
414 }
415 }
416
417 native void modalDisable(Dialog blocker, long blockerHWnd);
418 native void modalEnable(Dialog blocker);
419
420 /*
421 * Returns all the ever active windows from the current AppContext.
422 * The list is sorted by the time of activation, so the latest
423 * active window is always at the end.
424 */
425 @SuppressWarnings("unchecked")
426 public static long[] getActiveWindowHandles() {
427 AppContext appContext = AppContext.getAppContext();
428 synchronized (appContext) {
429 List<WWindowPeer> l = (List<WWindowPeer>)appContext.get(ACTIVE_WINDOWS_KEY);
430 if (l == null) {
431 return null;
432 }
433 long[] result = new long[l.size()];
434 for (int j = 0; j < l.size(); j++) {
435 result[j] = l.get(j).getHWnd();
436 }
437 return result;
438 }
439 }
440
441 /*
442 * ----DISPLAY CHANGE SUPPORT----
443 */
444
445 /*
446 * Called from native code when we have been dragged onto another screen.
447 */
448 void draggedToNewScreen() {
449 SunToolkit.executeOnEventHandlerThread((Component)target,new Runnable()
450 {
451 public void run() {
452 displayChanged();
453 }
454 });
455 }
456
457 public void updateGC() {
458 int scrn = getScreenImOn();
459 if (screenLog.isLoggable(PlatformLogger.FINER)) {
460 log.finer("Screen number: " + scrn);
461 }
462
463 // get current GD
464 Win32GraphicsDevice oldDev = (Win32GraphicsDevice)winGraphicsConfig
465 .getDevice();
466
467 Win32GraphicsDevice newDev;
468 GraphicsDevice devs[] = GraphicsEnvironment
469 .getLocalGraphicsEnvironment()
470 .getScreenDevices();
471 // Occasionally during device addition/removal getScreenImOn can return
472 // a non-existing screen number. Use the default device in this case.
473 if (scrn >= devs.length) {
474 newDev = (Win32GraphicsDevice)GraphicsEnvironment
475 .getLocalGraphicsEnvironment().getDefaultScreenDevice();
476 } else {
477 newDev = (Win32GraphicsDevice)devs[scrn];
478 }
479
480 // Set winGraphicsConfig to the default GC for the monitor this Window
481 // is now mostly on.
482 winGraphicsConfig = (Win32GraphicsConfig)newDev
483 .getDefaultConfiguration();
484 if (screenLog.isLoggable(PlatformLogger.FINE)) {
485 if (winGraphicsConfig == null) {
486 screenLog.fine("Assertion (winGraphicsConfig != null) failed");
487 }
488 }
489
490 // if on a different display, take off old GD and put on new GD
491 if (oldDev != newDev) {
492 oldDev.removeDisplayChangedListener(this);
493 newDev.addDisplayChangedListener(this);
494 }
495
496 AWTAccessor.getComponentAccessor().
497 setGraphicsConfiguration((Component)target, winGraphicsConfig);
498 }
499
500 /**
501 * From the DisplayChangedListener interface.
502 *
503 * This method handles a display change - either when the display settings
504 * are changed, or when the window has been dragged onto a different
505 * display.
506 * Called after a change in the display mode. This event
507 * triggers replacing the surfaceData object (since that object
508 * reflects the current display depth information, which has
509 * just changed).
510 */
511 public void displayChanged() {
512 updateGC();
513 }
514
515 /**
516 * Part of the DisplayChangedListener interface: components
517 * do not need to react to this event
518 */
519 public void paletteChanged() {
520 }
521
522 private native int getScreenImOn();
523
524 // Used in Win32GraphicsDevice.
525 public final native void setFullScreenExclusiveModeState(boolean state);
526
527 /*
528 * ----END DISPLAY CHANGE SUPPORT----
529 */
530
531 public void grab() {
532 nativeGrab();
533 }
534
535 public void ungrab() {
536 nativeUngrab();
537 }
538 private native void nativeGrab();
539 private native void nativeUngrab();
540
541 private final boolean hasWarningWindow() {
542 return ((Window)target).getWarningString() != null;
543 }
544
545 boolean isTargetUndecorated() {
546 return true;
547 }
548
549 // These are the peer bounds. They get updated at:
550 // 1. the WWindowPeer.setBounds() method.
551 // 2. the native code (on WM_SIZE/WM_MOVE)
552 private volatile int sysX = 0;
553 private volatile int sysY = 0;
554 private volatile int sysW = 0;
555 private volatile int sysH = 0;
556
557 public native void repositionSecurityWarning();
558
559 @Override
560 public void setBounds(int x, int y, int width, int height, int op) {
561 sysX = x;
562 sysY = y;
563 sysW = width;
564 sysH = height;
565
566 super.setBounds(x, y, width, height, op);
567 }
568
569 @Override
570 public void print(Graphics g) {
571 // We assume we print the whole frame,
572 // so we expect no clip was set previously
573 Shape shape = AWTAccessor.getWindowAccessor().getShape((Window)target);
574 if (shape != null) {
575 g.setClip(shape);
576 }
577 super.print(g);
578 }
579
580 @SuppressWarnings("deprecation")
581 private void replaceSurfaceDataRecursively(Component c) {
582 if (c instanceof Container) {
583 for (Component child : ((Container)c).getComponents()) {
584 replaceSurfaceDataRecursively(child);
585 }
586 }
587 ComponentPeer cp = c.getPeer();
588 if (cp instanceof WComponentPeer) {
589 ((WComponentPeer)cp).replaceSurfaceDataLater();
590 }
591 }
592
593 public final Graphics getTranslucentGraphics() {
594 synchronized (getStateLock()) {
595 return isOpaque ? null : painter.getBackBuffer(false).getGraphics();
596 }
597 }
598
599 @Override
600 public void setBackground(Color c) {
601 super.setBackground(c);
602 synchronized (getStateLock()) {
603 if (!isOpaque && ((Window)target).isVisible()) {
604 updateWindow(true);
605 }
606 }
607 }
608
609 private native void setOpacity(int iOpacity);
610 private float opacity = 1.0f;
611
612 public void setOpacity(float opacity) {
613 if (!((SunToolkit)((Window)target).getToolkit()).
614 isWindowOpacitySupported())
615 {
616 return;
617 }
618
619 if (opacity < 0.0f || opacity > 1.0f) {
620 throw new IllegalArgumentException(
621 "The value of opacity should be in the range [0.0f .. 1.0f].");
622 }
623
624 if (((this.opacity == 1.0f && opacity < 1.0f) ||
625 (this.opacity < 1.0f && opacity == 1.0f)) &&
626 !Win32GraphicsEnvironment.isVistaOS())
627 {
628 // non-Vista OS: only replace the surface data if opacity status
629 // changed (see WComponentPeer.isAccelCapable() for more)
630 replaceSurfaceDataRecursively((Component)getTarget());
631 }
632
633 this.opacity = opacity;
634
635 final int maxOpacity = 0xff;
636 int iOpacity = (int)(opacity * maxOpacity);
637 if (iOpacity < 0) {
638 iOpacity = 0;
639 }
640 if (iOpacity > maxOpacity) {
641 iOpacity = maxOpacity;
642 }
643
644 setOpacity(iOpacity);
645
646 synchronized (getStateLock()) {
647 if (!isOpaque && ((Window)target).isVisible()) {
648 updateWindow(true);
649 }
650 }
651 }
652
653 private native void setOpaqueImpl(boolean isOpaque);
654
655 public void setOpaque(boolean isOpaque) {
656 synchronized (getStateLock()) {
657 if (this.isOpaque == isOpaque) {
658 return;
659 }
660 }
661
662 Window target = (Window)getTarget();
663
664 if (!isOpaque) {
665 SunToolkit sunToolkit = (SunToolkit)target.getToolkit();
666 if (!sunToolkit.isWindowTranslucencySupported() ||
667 !sunToolkit.isTranslucencyCapable(target.getGraphicsConfiguration()))
668 {
669 return;
670 }
671 }
672
673 boolean isVistaOS = Win32GraphicsEnvironment.isVistaOS();
674
675 if (this.isOpaque != isOpaque && !isVistaOS) {
676 // non-Vista OS: only replace the surface data if the opacity
677 // status changed (see WComponentPeer.isAccelCapable() for more)
678 replaceSurfaceDataRecursively(target);
679 }
680
681 synchronized (getStateLock()) {
682 this.isOpaque = isOpaque;
683 setOpaqueImpl(isOpaque);
684 if (isOpaque) {
685 TranslucentWindowPainter currentPainter = painter;
686 if (currentPainter != null) {
687 currentPainter.flush();
688 painter = null;
689 }
690 } else {
691 painter = TranslucentWindowPainter.createInstance(this);
692 }
693 }
694
695 if (isVistaOS) {
696 // On Vista: setting the window non-opaque makes the window look
697 // rectangular, though still catching the mouse clicks within
698 // its shape only. To restore the correct visual appearance
699 // of the window (i.e. w/ the correct shape) we have to reset
700 // the shape.
701 Shape shape = target.getShape();
702 if (shape != null) {
703 target.setShape(shape);
704 }
705 }
706
707 if (target.isVisible()) {
708 updateWindow(true);
709 }
710 }
711
712 public native void updateWindowImpl(int[] data, int width, int height);
713
714 public void updateWindow() {
715 updateWindow(false);
716 }
717
718 private void updateWindow(boolean repaint) {
719 Window w = (Window)target;
720 synchronized (getStateLock()) {
721 if (isOpaque || !w.isVisible() ||
722 (w.getWidth() <= 0) || (w.getHeight() <= 0))
723 {
724 return;
725 }
726 TranslucentWindowPainter currentPainter = painter;
727 if (currentPainter != null) {
728 currentPainter.updateWindow(repaint);
729 } else if (log.isLoggable(PlatformLogger.FINER)) {
730 log.finer("Translucent window painter is null in updateWindow");
731 }
732 }
733 }
734
735 /*
736 * The method maps the list of the active windows to the window's AppContext,
737 * then the method registers ActiveWindowListener, GuiDisposedListener listeners;
738 * it executes the initilialization only once per AppContext.
739 */
740 @SuppressWarnings("unchecked")
741 private static void initActiveWindowsTracking(Window w) {
742 AppContext appContext = AppContext.getAppContext();
743 synchronized (appContext) {
744 List<WWindowPeer> l = (List<WWindowPeer>)appContext.get(ACTIVE_WINDOWS_KEY);
745 if (l == null) {
746 l = new LinkedList<WWindowPeer>();
747 appContext.put(ACTIVE_WINDOWS_KEY, l);
748 appContext.addPropertyChangeListener(AppContext.GUI_DISPOSED, guiDisposedListener);
749
750 KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
751 kfm.addPropertyChangeListener("activeWindow", activeWindowListener);
752 }
753 }
754 }
755
756 /*
757 * The GuiDisposedListener class listens for the AppContext.GUI_DISPOSED property,
758 * it removes the list of the active windows from the disposed AppContext and
759 * unregisters ActiveWindowListener listener.
760 */
761 private static class GuiDisposedListener implements PropertyChangeListener {
762 public void propertyChange(PropertyChangeEvent e) {
763 boolean isDisposed = (Boolean)e.getNewValue();
764 if (isDisposed != true) {
765 if (log.isLoggable(PlatformLogger.FINE)) {
766 log.fine(" Assertion (newValue != true) failed for AppContext.GUI_DISPOSED ");
767 }
768 }
769 AppContext appContext = AppContext.getAppContext();
770 synchronized (appContext) {
771 appContext.remove(ACTIVE_WINDOWS_KEY);
772 appContext.removePropertyChangeListener(AppContext.GUI_DISPOSED, this);
773
774 KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
775 kfm.removePropertyChangeListener("activeWindow", activeWindowListener);
776 }
777 }
778 }
779
780 /*
781 * Static inner class, listens for 'activeWindow' KFM property changes and
782 * updates the list of active windows per AppContext, so the latest active
783 * window is always at the end of the list. The list is stored in AppContext.
784 */
785 @SuppressWarnings( value = {"deprecation", "unchecked"})
786 private static class ActiveWindowListener implements PropertyChangeListener {
787 public void propertyChange(PropertyChangeEvent e) {
788 Window w = (Window)e.getNewValue();
789 if (w == null) {
790 return;
791 }
792 AppContext appContext = SunToolkit.targetToAppContext(w);
793 synchronized (appContext) {
794 WWindowPeer wp = (WWindowPeer)w.getPeer();
795 // add/move wp to the end of the list
796 List<WWindowPeer> l = (List<WWindowPeer>)appContext.get(ACTIVE_WINDOWS_KEY);
797 if (l != null) {
798 l.remove(wp);
799 l.add(wp);
800 }
801 }
802 }
803 }
804 }