1 /*
2 * Copyright (c) 1995, 2018, 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 package java.awt;
27
28 import java.awt.event.ComponentEvent;
29 import java.awt.event.FocusEvent;
30 import java.awt.event.KeyEvent;
31 import java.awt.event.MouseWheelEvent;
32 import java.awt.event.WindowEvent;
33 import java.awt.event.WindowFocusListener;
34 import java.awt.event.WindowListener;
35 import java.awt.event.WindowStateListener;
36 import java.awt.geom.Path2D;
37 import java.awt.geom.Point2D;
38 import java.awt.im.InputContext;
39 import java.awt.image.BufferStrategy;
40 import java.awt.peer.ComponentPeer;
41 import java.awt.peer.WindowPeer;
42 import java.beans.PropertyChangeListener;
43 import java.io.IOException;
44 import java.io.ObjectInputStream;
45 import java.io.ObjectOutputStream;
46 import java.io.OptionalDataException;
47 import java.io.Serializable;
48 import java.lang.ref.WeakReference;
49 import java.lang.reflect.InvocationTargetException;
50 import java.security.AccessController;
51 import java.util.ArrayList;
52 import java.util.Arrays;
53 import java.util.EventListener;
54 import java.util.Locale;
55 import java.util.ResourceBundle;
56 import java.util.Set;
57 import java.util.Vector;
58 import java.util.concurrent.atomic.AtomicBoolean;
59
60 import javax.accessibility.Accessible;
61 import javax.accessibility.AccessibleContext;
62 import javax.accessibility.AccessibleRole;
63 import javax.accessibility.AccessibleState;
64 import javax.accessibility.AccessibleStateSet;
65
66 import sun.awt.AWTAccessor;
67 import sun.awt.AWTPermissions;
68 import sun.awt.AppContext;
69 import sun.awt.DebugSettings;
70 import sun.awt.SunToolkit;
71 import sun.awt.util.IdentityArrayList;
72 import sun.java2d.pipe.Region;
73 import sun.security.action.GetPropertyAction;
74 import sun.util.logging.PlatformLogger;
75
76 /**
77 * A {@code Window} object is a top-level window with no borders and no
78 * menubar.
79 * The default layout for a window is {@code BorderLayout}.
80 * <p>
81 * A window must have either a frame, dialog, or another window defined as its
82 * owner when it's constructed.
83 * <p>
84 * In a multi-screen environment, you can create a {@code Window}
85 * on a different screen device by constructing the {@code Window}
86 * with {@link #Window(Window, GraphicsConfiguration)}. The
87 * {@code GraphicsConfiguration} object is one of the
88 * {@code GraphicsConfiguration} objects of the target screen device.
89 * <p>
90 * In a virtual device multi-screen environment in which the desktop
91 * area could span multiple physical screen devices, the bounds of all
92 * configurations are relative to the virtual device coordinate system.
93 * The origin of the virtual-coordinate system is at the upper left-hand
94 * corner of the primary physical screen. Depending on the location of
95 * the primary screen in the virtual device, negative coordinates are
96 * possible, as shown in the following figure.
97 * <p>
98 * <img src="doc-files/MultiScreen.gif"
99 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
100 * style="float:center; margin: 7px 10px;">
101 * <p>
102 * In such an environment, when calling {@code setLocation},
103 * you must pass a virtual coordinate to this method. Similarly,
104 * calling {@code getLocationOnScreen} on a {@code Window} returns
105 * virtual device coordinates. Call the {@code getBounds} method
106 * of a {@code GraphicsConfiguration} to find its origin in the virtual
107 * coordinate system.
108 * <p>
109 * The following code sets the location of a {@code Window}
110 * at (10, 10) relative to the origin of the physical screen
111 * of the corresponding {@code GraphicsConfiguration}. If the
112 * bounds of the {@code GraphicsConfiguration} is not taken
113 * into account, the {@code Window} location would be set
114 * at (10, 10) relative to the virtual-coordinate system and would appear
115 * on the primary physical screen, which might be different from the
116 * physical screen of the specified {@code GraphicsConfiguration}.
117 *
118 * <pre>
119 * Window w = new Window(Window owner, GraphicsConfiguration gc);
120 * Rectangle bounds = gc.getBounds();
121 * w.setLocation(10 + bounds.x, 10 + bounds.y);
122 * </pre>
123 *
124 * <p>
125 * Note: the location and size of top-level windows (including
126 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
127 * are under the control of the desktop's window management system.
128 * Calls to {@code setLocation}, {@code setSize}, and
129 * {@code setBounds} are requests (not directives) which are
130 * forwarded to the window management system. Every effort will be
131 * made to honor such requests. However, in some cases the window
132 * management system may ignore such requests, or modify the requested
133 * geometry in order to place and size the {@code Window} in a way
134 * that more closely matches the desktop settings.
135 * <p>
136 * Due to the asynchronous nature of native event handling, the results
137 * returned by {@code getBounds}, {@code getLocation},
138 * {@code getLocationOnScreen}, and {@code getSize} might not
139 * reflect the actual geometry of the Window on screen until the last
140 * request has been processed. During the processing of subsequent
141 * requests these values might change accordingly while the window
142 * management system fulfills the requests.
143 * <p>
144 * An application may set the size and location of an invisible
145 * {@code Window} arbitrarily, but the window management system may
146 * subsequently change its size and/or location when the
147 * {@code Window} is made visible. One or more {@code ComponentEvent}s
148 * will be generated to indicate the new geometry.
149 * <p>
150 * Windows are capable of generating the following WindowEvents:
151 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
152 *
153 * @author Sami Shaio
154 * @author Arthur van Hoff
155 * @see WindowEvent
156 * @see #addWindowListener
157 * @see java.awt.BorderLayout
158 * @since 1.0
159 */
160 public class Window extends Container implements Accessible {
161
162 /**
163 * Enumeration of available <i>window types</i>.
164 *
165 * A window type defines the generic visual appearance and behavior of a
166 * top-level window. For example, the type may affect the kind of
167 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
168 * <p>
169 * Some platforms may not fully support a certain window type. Depending on
170 * the level of support, some properties of the window type may be
171 * disobeyed.
172 *
173 * @see #getType
174 * @see #setType
175 * @since 1.7
176 */
177 public static enum Type {
178 /**
179 * Represents a <i>normal</i> window.
180 *
181 * This is the default type for objects of the {@code Window} class or
182 * its descendants. Use this type for regular top-level windows.
183 */
184 NORMAL,
185
186 /**
187 * Represents a <i>utility</i> window.
188 *
189 * A utility window is usually a small window such as a toolbar or a
190 * palette. The native system may render the window with smaller
191 * title-bar if the window is either a {@code Frame} or a {@code
192 * Dialog} object, and if it has its decorations enabled.
193 */
194 UTILITY,
195
196 /**
197 * Represents a <i>popup</i> window.
198 *
199 * A popup window is a temporary window such as a drop-down menu or a
200 * tooltip. On some platforms, windows of that type may be forcibly
201 * made undecorated even if they are instances of the {@code Frame} or
202 * {@code Dialog} class, and have decorations enabled.
203 */
204 POPUP
205 }
206
207 /**
208 * This represents the warning message that is
209 * to be displayed in a non secure window. ie :
210 * a window that has a security manager installed that denies
211 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
212 * This message can be displayed anywhere in the window.
213 *
214 * @serial
215 * @see #getWarningString
216 */
217 String warningString;
218
219 /**
220 * {@code icons} is the graphical way we can
221 * represent the frames and dialogs.
222 * {@code Window} can't display icon but it's
223 * being inherited by owned {@code Dialog}s.
224 *
225 * @serial
226 * @see #getIconImages
227 * @see #setIconImages
228 */
229 transient java.util.List<Image> icons;
230
231 /**
232 * Holds the reference to the component which last had focus in this window
233 * before it lost focus.
234 */
235 private transient Component temporaryLostComponent;
236
237 static boolean systemSyncLWRequests = false;
238 boolean syncLWRequests = false;
239 transient boolean beforeFirstShow = true;
240 private transient boolean disposing = false;
241 transient WindowDisposerRecord disposerRecord = null;
242
243 static final int OPENED = 0x01;
244
245 /**
246 * An Integer value representing the Window State.
247 *
248 * @serial
249 * @since 1.2
250 * @see #show
251 */
252 int state;
253
254 /**
255 * A boolean value representing Window always-on-top state
256 * @since 1.5
257 * @serial
258 * @see #setAlwaysOnTop
259 * @see #isAlwaysOnTop
260 */
261 private boolean alwaysOnTop;
262
263 /**
264 * Contains all the windows that have a peer object associated,
265 * i. e. between addNotify() and removeNotify() calls. The list
266 * of all Window instances can be obtained from AppContext object.
267 *
268 * @since 1.6
269 */
270 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
271
272 /**
273 * A vector containing all the windows this
274 * window currently owns.
275 * @since 1.2
276 * @see #getOwnedWindows
277 */
278 transient Vector<WeakReference<Window>> ownedWindowList =
279 new Vector<WeakReference<Window>>();
280
281 /*
282 * We insert a weak reference into the Vector of all Windows in AppContext
283 * instead of 'this' so that garbage collection can still take place
284 * correctly.
285 */
286 private transient WeakReference<Window> weakThis;
287
288 transient boolean showWithParent;
289
290 /**
291 * Contains the modal dialog that blocks this window, or null
292 * if the window is unblocked.
293 *
294 * @since 1.6
295 */
296 transient Dialog modalBlocker;
297
298 /**
299 * @serial
300 *
301 * @see java.awt.Dialog.ModalExclusionType
302 * @see #getModalExclusionType
303 * @see #setModalExclusionType
304 *
305 * @since 1.6
306 */
307 Dialog.ModalExclusionType modalExclusionType;
308
309 transient WindowListener windowListener;
310 transient WindowStateListener windowStateListener;
311 transient WindowFocusListener windowFocusListener;
312
313 transient InputContext inputContext;
314 private transient Object inputContextLock = new Object();
315
316 /**
317 * Unused. Maintained for serialization backward-compatibility.
318 *
319 * @serial
320 * @since 1.2
321 */
322 private FocusManager focusMgr;
323
324 /**
325 * Indicates whether this Window can become the focused Window.
326 *
327 * @serial
328 * @see #getFocusableWindowState
329 * @see #setFocusableWindowState
330 * @since 1.4
331 */
332 private boolean focusableWindowState = true;
333
334 /**
335 * Indicates whether this window should receive focus on
336 * subsequently being shown (with a call to {@code setVisible(true)}), or
337 * being moved to the front (with a call to {@code toFront()}).
338 *
339 * @serial
340 * @see #setAutoRequestFocus
341 * @see #isAutoRequestFocus
342 * @since 1.7
343 */
344 private volatile boolean autoRequestFocus = true;
345
346 /*
347 * Indicates that this window is being shown. This flag is set to true at
348 * the beginning of show() and to false at the end of show().
349 *
350 * @see #show()
351 * @see Dialog#shouldBlock
352 */
353 transient boolean isInShow = false;
354
355 /**
356 * The opacity level of the window
357 *
358 * @serial
359 * @see #setOpacity(float)
360 * @see #getOpacity()
361 * @since 1.7
362 */
363 private volatile float opacity = 1.0f;
364
365 /**
366 * The shape assigned to this window. This field is set to {@code null} if
367 * no shape is set (rectangular window).
368 *
369 * @serial
370 * @see #getShape()
371 * @see #setShape(Shape)
372 * @since 1.7
373 */
374 private Shape shape = null;
375
376 private static final String base = "win";
377 private static int nameCounter = 0;
378
379 /*
380 * JDK 1.1 serialVersionUID
381 */
382 private static final long serialVersionUID = 4497834738069338734L;
383
384 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
385
386 private static final boolean locationByPlatformProp;
387
388 transient boolean isTrayIconWindow = false;
389
390 /**
391 * These fields are initialized in the native peer code
392 * or via AWTAccessor's WindowAccessor.
393 */
394 private transient volatile int securityWarningWidth = 0;
395 private transient volatile int securityWarningHeight = 0;
396
397 static {
398 /* ensure that the necessary native libraries are loaded */
399 Toolkit.loadLibraries();
400 if (!GraphicsEnvironment.isHeadless()) {
401 initIDs();
402 }
403
404 String s = java.security.AccessController.doPrivileged(
405 new GetPropertyAction("java.awt.syncLWRequests"));
406 systemSyncLWRequests = (s != null && s.equals("true"));
407 s = java.security.AccessController.doPrivileged(
408 new GetPropertyAction("java.awt.Window.locationByPlatform"));
409 locationByPlatformProp = (s != null && s.equals("true"));
410 }
411
412 /**
413 * Initialize JNI field and method IDs for fields that may be
414 accessed from C.
415 */
416 private static native void initIDs();
417
418 /**
419 * Constructs a new, initially invisible window in default size with the
420 * specified {@code GraphicsConfiguration}.
421 * <p>
422 * If there is a security manager, then it is invoked to check
423 * {@code AWTPermission("showWindowWithoutWarningBanner")}
424 * to determine whether or not the window must be displayed with
425 * a warning banner.
426 *
427 * @param gc the {@code GraphicsConfiguration} of the target screen
428 * device. If {@code gc} is {@code null}, the system default
429 * {@code GraphicsConfiguration} is assumed
430 * @exception IllegalArgumentException if {@code gc}
431 * is not from a screen device
432 * @exception HeadlessException when
433 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
434 *
435 * @see java.awt.GraphicsEnvironment#isHeadless
436 */
437 Window(GraphicsConfiguration gc) {
438 init(gc);
439 }
440
441 transient Object anchor = new Object();
442 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
443 WeakReference<Window> owner;
444 final WeakReference<Window> weakThis;
445 final WeakReference<AppContext> context;
446
447 WindowDisposerRecord(AppContext context, Window victim) {
448 weakThis = victim.weakThis;
449 this.context = new WeakReference<AppContext>(context);
450 }
451
452 public void updateOwner() {
453 Window victim = weakThis.get();
454 owner = (victim == null)
455 ? null
456 : new WeakReference<Window>(victim.getOwner());
457 }
458
459 public void dispose() {
460 if (owner != null) {
461 Window parent = owner.get();
462 if (parent != null) {
463 parent.removeOwnedWindow(weakThis);
464 }
465 }
466 AppContext ac = context.get();
467 if (null != ac) {
468 Window.removeFromWindowList(ac, weakThis);
469 }
470 }
471 }
472
473 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
474 GraphicsEnvironment.checkHeadless();
475
476 if (gc == null) {
477 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
478 getDefaultScreenDevice().getDefaultConfiguration();
479 }
480 setGraphicsConfiguration(gc);
481
482 return gc;
483 }
484
485 private void init(GraphicsConfiguration gc) {
486 GraphicsEnvironment.checkHeadless();
487
488 syncLWRequests = systemSyncLWRequests;
489
490 weakThis = new WeakReference<Window>(this);
491 addToWindowList();
492
493 setWarningString();
494 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
495 this.visible = false;
496
497 gc = initGC(gc);
498
499 if (gc.getDevice().getType() !=
500 GraphicsDevice.TYPE_RASTER_SCREEN) {
501 throw new IllegalArgumentException("not a screen device");
502 }
503 setLayout(new BorderLayout());
504
505 /* offset the initial location with the original of the screen */
506 /* and any insets */
507 Rectangle screenBounds = gc.getBounds();
508 Insets screenInsets = getToolkit().getScreenInsets(gc);
509 int x = getX() + screenBounds.x + screenInsets.left;
510 int y = getY() + screenBounds.y + screenInsets.top;
511 if (x != this.x || y != this.y) {
512 setLocation(x, y);
513 /* reset after setLocation */
514 setLocationByPlatform(locationByPlatformProp);
515 }
516
517 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
518 disposerRecord = new WindowDisposerRecord(appContext, this);
519 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
520
521 SunToolkit.checkAndSetPolicy(this);
522 }
523
524 /**
525 * Constructs a new, initially invisible window in the default size.
526 * <p>
527 * If there is a security manager set, it is invoked to check
528 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
529 * If that check fails with a {@code SecurityException} then a warning
530 * banner is created.
531 *
532 * @exception HeadlessException when
533 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
534 *
535 * @see java.awt.GraphicsEnvironment#isHeadless
536 */
537 Window() throws HeadlessException {
538 GraphicsEnvironment.checkHeadless();
539 init((GraphicsConfiguration)null);
540 }
541
542 /**
543 * Constructs a new, initially invisible window with the specified
544 * {@code Frame} as its owner. The window will not be focusable
545 * unless its owner is showing on the screen.
546 * <p>
547 * If there is a security manager set, it is invoked to check
548 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
549 * If that check fails with a {@code SecurityException} then a warning
550 * banner is created.
551 *
552 * @param owner the {@code Frame} to act as owner or {@code null}
553 * if this window has no owner
554 * @exception IllegalArgumentException if the {@code owner}'s
555 * {@code GraphicsConfiguration} is not from a screen device
556 * @exception HeadlessException when
557 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
558 *
559 * @see java.awt.GraphicsEnvironment#isHeadless
560 * @see #isShowing
561 */
562 public Window(Frame owner) {
563 this(owner == null ? (GraphicsConfiguration)null :
564 owner.getGraphicsConfiguration());
565 ownedInit(owner);
566 }
567
568 /**
569 * Constructs a new, initially invisible window with the specified
570 * {@code Window} as its owner. This window will not be focusable
571 * unless its nearest owning {@code Frame} or {@code Dialog}
572 * is showing on the screen.
573 * <p>
574 * If there is a security manager set, it is invoked to check
575 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
576 * If that check fails with a {@code SecurityException} then a
577 * warning banner is created.
578 *
579 * @param owner the {@code Window} to act as owner or
580 * {@code null} if this window has no owner
581 * @exception IllegalArgumentException if the {@code owner}'s
582 * {@code GraphicsConfiguration} is not from a screen device
583 * @exception HeadlessException when
584 * {@code GraphicsEnvironment.isHeadless()} returns
585 * {@code true}
586 *
587 * @see java.awt.GraphicsEnvironment#isHeadless
588 * @see #isShowing
589 *
590 * @since 1.2
591 */
592 public Window(Window owner) {
593 this(owner == null ? (GraphicsConfiguration)null :
594 owner.getGraphicsConfiguration());
595 ownedInit(owner);
596 }
597
598 /**
599 * Constructs a new, initially invisible window with the specified owner
600 * {@code Window} and a {@code GraphicsConfiguration}
601 * of a screen device. The Window will not be focusable unless
602 * its nearest owning {@code Frame} or {@code Dialog}
603 * is showing on the screen.
604 * <p>
605 * If there is a security manager set, it is invoked to check
606 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
607 * check fails with a {@code SecurityException} then a warning banner
608 * is created.
609 *
610 * @param owner the window to act as owner or {@code null}
611 * if this window has no owner
612 * @param gc the {@code GraphicsConfiguration} of the target
613 * screen device; if {@code gc} is {@code null},
614 * the system default {@code GraphicsConfiguration} is assumed
615 * @exception IllegalArgumentException if {@code gc}
616 * is not from a screen device
617 * @exception HeadlessException when
618 * {@code GraphicsEnvironment.isHeadless()} returns
619 * {@code true}
620 *
621 * @see java.awt.GraphicsEnvironment#isHeadless
622 * @see GraphicsConfiguration#getBounds
623 * @see #isShowing
624 * @since 1.3
625 */
626 public Window(Window owner, GraphicsConfiguration gc) {
627 this(gc);
628 ownedInit(owner);
629 }
630
631 private void ownedInit(Window owner) {
632 this.parent = owner;
633 if (owner != null) {
634 owner.addOwnedWindow(weakThis);
635 if (owner.isAlwaysOnTop()) {
636 try {
637 setAlwaysOnTop(true);
638 } catch (SecurityException ignore) {
639 }
640 }
641 }
642
643 // WindowDisposerRecord requires a proper value of parent field.
644 disposerRecord.updateOwner();
645 }
646
647 /**
648 * Construct a name for this component. Called by getName() when the
649 * name is null.
650 */
651 String constructComponentName() {
652 synchronized (Window.class) {
653 return base + nameCounter++;
654 }
655 }
656
657 /**
658 * Returns the sequence of images to be displayed as the icon for this window.
659 * <p>
660 * This method returns a copy of the internally stored list, so all operations
661 * on the returned object will not affect the window's behavior.
662 *
663 * @return the copy of icon images' list for this window, or
664 * empty list if this window doesn't have icon images.
665 * @see #setIconImages
666 * @see #setIconImage(Image)
667 * @since 1.6
668 */
669 public java.util.List<Image> getIconImages() {
670 java.util.List<Image> icons = this.icons;
671 if (icons == null || icons.size() == 0) {
672 return new ArrayList<Image>();
673 }
674 return new ArrayList<Image>(icons);
675 }
676
677 /**
678 * Sets the sequence of images to be displayed as the icon
679 * for this window. Subsequent calls to {@code getIconImages} will
680 * always return a copy of the {@code icons} list.
681 * <p>
682 * Depending on the platform capabilities one or several images
683 * of different dimensions will be used as the window's icon.
684 * <p>
685 * The {@code icons} list can contain {@code MultiResolutionImage} images also.
686 * Suitable image depending on screen resolution is extracted from
687 * base {@code MultiResolutionImage} image and added to the icons list
688 * while base resolution image is removed from list.
689 * The {@code icons} list is scanned for the images of most
690 * appropriate dimensions from the beginning. If the list contains
691 * several images of the same size, the first will be used.
692 * <p>
693 * Ownerless windows with no icon specified use platform-default icon.
694 * The icon of an owned window may be inherited from the owner
695 * unless explicitly overridden.
696 * Setting the icon to {@code null} or empty list restores
697 * the default behavior.
698 * <p>
699 * Note : Native windowing systems may use different images of differing
700 * dimensions to represent a window, depending on the context (e.g.
701 * window decoration, window list, taskbar, etc.). They could also use
702 * just a single image for all contexts or no image at all.
703 *
704 * @param icons the list of icon images to be displayed.
705 * @see #getIconImages()
706 * @see #setIconImage(Image)
707 * @since 1.6
708 */
709 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
710 this.icons = (icons == null) ? new ArrayList<Image>() :
711 new ArrayList<Image>(icons);
712 WindowPeer peer = (WindowPeer)this.peer;
713 if (peer != null) {
714 peer.updateIconImages();
715 }
716 // Always send a property change event
717 firePropertyChange("iconImage", null, null);
718 }
719
720 /**
721 * Sets the image to be displayed as the icon for this window.
722 * <p>
723 * This method can be used instead of {@link #setIconImages setIconImages()}
724 * to specify a single image as a window's icon.
725 * <p>
726 * The following statement:
727 * <pre>
728 * setIconImage(image);
729 * </pre>
730 * is equivalent to:
731 * <pre>
732 * ArrayList<Image> imageList = new ArrayList<Image>();
733 * imageList.add(image);
734 * setIconImages(imageList);
735 * </pre>
736 * <p>
737 * Note : Native windowing systems may use different images of differing
738 * dimensions to represent a window, depending on the context (e.g.
739 * window decoration, window list, taskbar, etc.). They could also use
740 * just a single image for all contexts or no image at all.
741 *
742 * @param image the icon image to be displayed.
743 * @see #setIconImages
744 * @see #getIconImages()
745 * @since 1.6
746 */
747 public void setIconImage(Image image) {
748 ArrayList<Image> imageList = new ArrayList<Image>();
749 if (image != null) {
750 imageList.add(image);
751 }
752 setIconImages(imageList);
753 }
754
755 /**
756 * Makes this Window displayable by creating the connection to its
757 * native screen resource.
758 * This method is called internally by the toolkit and should
759 * not be called directly by programs.
760 * @see Component#isDisplayable
761 * @see Container#removeNotify
762 * @since 1.0
763 */
764 public void addNotify() {
765 synchronized (getTreeLock()) {
766 Container parent = this.parent;
767 if (parent != null && parent.peer == null) {
768 parent.addNotify();
769 }
770 if (peer == null) {
771 peer = getComponentFactory().createWindow(this);
772 }
773 synchronized (allWindows) {
774 allWindows.add(this);
775 }
776 super.addNotify();
777 }
778 }
779
780 /**
781 * {@inheritDoc}
782 */
783 public void removeNotify() {
784 synchronized (getTreeLock()) {
785 synchronized (allWindows) {
786 allWindows.remove(this);
787 }
788 super.removeNotify();
789 }
790 }
791
792 /**
793 * Causes this Window to be sized to fit the preferred size
794 * and layouts of its subcomponents. The resulting width and
795 * height of the window are automatically enlarged if either
796 * of dimensions is less than the minimum size as specified
797 * by the previous call to the {@code setMinimumSize} method.
798 * <p>
799 * If the window and/or its owner are not displayable yet,
800 * both of them are made displayable before calculating
801 * the preferred size. The Window is validated after its
802 * size is being calculated.
803 *
804 * @see Component#isDisplayable
805 * @see #setMinimumSize
806 */
807 @SuppressWarnings("deprecation")
808 public void pack() {
809 Container parent = this.parent;
810 if (parent != null && parent.peer == null) {
811 parent.addNotify();
812 }
813 if (peer == null) {
814 addNotify();
815 }
816 Dimension newSize = getPreferredSize();
817 if (peer != null) {
818 setClientSize(newSize.width, newSize.height);
819 }
820
821 if(beforeFirstShow) {
822 isPacked = true;
823 }
824
825 validateUnconditionally();
826 }
827
828 /**
829 * Sets the minimum size of this window to a constant
830 * value. Subsequent calls to {@code getMinimumSize}
831 * will always return this value. If current window's
832 * size is less than {@code minimumSize} the size of the
833 * window is automatically enlarged to honor the minimum size.
834 * <p>
835 * If the {@code setSize} or {@code setBounds} methods
836 * are called afterwards with a width or height less than
837 * that was specified by the {@code setMinimumSize} method
838 * the window is automatically enlarged to meet
839 * the {@code minimumSize} value. The {@code minimumSize}
840 * value also affects the behaviour of the {@code pack} method.
841 * <p>
842 * The default behavior is restored by setting the minimum size
843 * parameter to the {@code null} value.
844 * <p>
845 * Resizing operation may be restricted if the user tries
846 * to resize window below the {@code minimumSize} value.
847 * This behaviour is platform-dependent.
848 *
849 * @param minimumSize the new minimum size of this window
850 * @see Component#setMinimumSize
851 * @see #getMinimumSize
852 * @see #isMinimumSizeSet
853 * @see #setSize(Dimension)
854 * @see #pack
855 * @since 1.6
856 */
857 public void setMinimumSize(Dimension minimumSize) {
858 synchronized (getTreeLock()) {
859 super.setMinimumSize(minimumSize);
860 Dimension size = getSize();
861 if (isMinimumSizeSet()) {
862 if (size.width < minimumSize.width || size.height < minimumSize.height) {
863 int nw = Math.max(width, minimumSize.width);
864 int nh = Math.max(height, minimumSize.height);
865 setSize(nw, nh);
866 }
867 }
868 if (peer != null) {
869 ((WindowPeer)peer).updateMinimumSize();
870 }
871 }
872 }
873
874 /**
875 * {@inheritDoc}
876 * <p>
877 * The {@code d.width} and {@code d.height} values
878 * are automatically enlarged if either is less than
879 * the minimum size as specified by previous call to
880 * {@code setMinimumSize}.
881 * <p>
882 * The method changes the geometry-related data. Therefore,
883 * the native windowing system may ignore such requests, or it may modify
884 * the requested data, so that the {@code Window} object is placed and sized
885 * in a way that corresponds closely to the desktop settings.
886 *
887 * @see #getSize
888 * @see #setBounds
889 * @see #setMinimumSize
890 * @since 1.6
891 */
892 public void setSize(Dimension d) {
893 super.setSize(d);
894 }
895
896 /**
897 * {@inheritDoc}
898 * <p>
899 * The {@code width} and {@code height} values
900 * are automatically enlarged if either is less than
901 * the minimum size as specified by previous call to
902 * {@code setMinimumSize}.
903 * <p>
904 * The method changes the geometry-related data. Therefore,
905 * the native windowing system may ignore such requests, or it may modify
906 * the requested data, so that the {@code Window} object is placed and sized
907 * in a way that corresponds closely to the desktop settings.
908 *
909 * @see #getSize
910 * @see #setBounds
911 * @see #setMinimumSize
912 * @since 1.6
913 */
914 public void setSize(int width, int height) {
915 super.setSize(width, height);
916 }
917
918 /**
919 * {@inheritDoc}
920 * <p>
921 * The method changes the geometry-related data. Therefore,
922 * the native windowing system may ignore such requests, or it may modify
923 * the requested data, so that the {@code Window} object is placed and sized
924 * in a way that corresponds closely to the desktop settings.
925 */
926 @Override
927 public void setLocation(int x, int y) {
928 super.setLocation(x, y);
929 }
930
931 /**
932 * {@inheritDoc}
933 * <p>
934 * The method changes the geometry-related data. Therefore,
935 * the native windowing system may ignore such requests, or it may modify
936 * the requested data, so that the {@code Window} object is placed and sized
937 * in a way that corresponds closely to the desktop settings.
938 */
939 @Override
940 public void setLocation(Point p) {
941 super.setLocation(p);
942 }
943
944 /**
945 * @deprecated As of JDK version 1.1,
946 * replaced by {@code setBounds(int, int, int, int)}.
947 */
948 @Deprecated
949 public void reshape(int x, int y, int width, int height) {
950 if (isMinimumSizeSet()) {
951 Dimension minSize = getMinimumSize();
952 if (width < minSize.width) {
953 width = minSize.width;
954 }
955 if (height < minSize.height) {
956 height = minSize.height;
957 }
958 }
959 super.reshape(x, y, width, height);
960 }
961
962 void setClientSize(int w, int h) {
963 synchronized (getTreeLock()) {
964 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
965 setBounds(x, y, w, h);
966 }
967 }
968
969 private static final AtomicBoolean
970 beforeFirstWindowShown = new AtomicBoolean(true);
971
972 final void closeSplashScreen() {
973 if (isTrayIconWindow) {
974 return;
975 }
976 if (beforeFirstWindowShown.getAndSet(false)) {
977 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
978 // the object if it hasn't been requested by user code explicitly
979 SunToolkit.closeSplashScreen();
980 SplashScreen.markClosed();
981 }
982 }
983
984 /**
985 * Shows or hides this {@code Window} depending on the value of parameter
986 * {@code b}.
987 * <p>
988 * If the method shows the window then the window is also made
989 * focused under the following conditions:
990 * <ul>
991 * <li> The {@code Window} meets the requirements outlined in the
992 * {@link #isFocusableWindow} method.
993 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
994 * <li> Native windowing system allows the {@code Window} to get focused.
995 * </ul>
996 * There is an exception for the second condition (the value of the
997 * {@code autoRequestFocus} property). The property is not taken into account if the
998 * window is a modal dialog, which blocks the currently focused window.
999 * <p>
1000 * Developers must never assume that the window is the focused or active window
1001 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
1002 * @param b if {@code true}, makes the {@code Window} visible,
1003 * otherwise hides the {@code Window}.
1004 * If the {@code Window} and/or its owner
1005 * are not yet displayable, both are made displayable. The
1006 * {@code Window} will be validated prior to being made visible.
1007 * If the {@code Window} is already visible, this will bring the
1008 * {@code Window} to the front.<p>
1009 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1010 * of its owned children.
1011 * The {@code Window} and its subcomponents can be made visible again
1012 * with a call to {@code #setVisible(true)}.
1013 * @see java.awt.Component#isDisplayable
1014 * @see java.awt.Component#setVisible
1015 * @see java.awt.Window#toFront
1016 * @see java.awt.Window#dispose
1017 * @see java.awt.Window#setAutoRequestFocus
1018 * @see java.awt.Window#isFocusableWindow
1019 */
1020 public void setVisible(boolean b) {
1021 super.setVisible(b);
1022 }
1023
1024 /**
1025 * Makes the Window visible. If the Window and/or its owner
1026 * are not yet displayable, both are made displayable. The
1027 * Window will be validated prior to being made visible.
1028 * If the Window is already visible, this will bring the Window
1029 * to the front.
1030 * @see Component#isDisplayable
1031 * @see #toFront
1032 * @deprecated As of JDK version 1.5, replaced by
1033 * {@link #setVisible(boolean)}.
1034 */
1035 @Deprecated
1036 public void show() {
1037 if (peer == null) {
1038 addNotify();
1039 }
1040 validateUnconditionally();
1041
1042 isInShow = true;
1043 if (visible) {
1044 toFront();
1045 } else {
1046 beforeFirstShow = false;
1047 closeSplashScreen();
1048 Dialog.checkShouldBeBlocked(this);
1049 super.show();
1050 locationByPlatform = false;
1051 for (int i = 0; i < ownedWindowList.size(); i++) {
1052 Window child = ownedWindowList.elementAt(i).get();
1053 if ((child != null) && child.showWithParent) {
1054 child.show();
1055 child.showWithParent = false;
1056 } // endif
1057 } // endfor
1058 if (!isModalBlocked()) {
1059 updateChildrenBlocking();
1060 } else {
1061 // fix for 6532736: after this window is shown, its blocker
1062 // should be raised to front
1063 modalBlocker.toFront_NoClientCode();
1064 }
1065 if (this instanceof Frame || this instanceof Dialog) {
1066 updateChildFocusableWindowState(this);
1067 }
1068 }
1069 isInShow = false;
1070
1071 // If first time shown, generate WindowOpened event
1072 if ((state & OPENED) == 0) {
1073 postWindowEvent(WindowEvent.WINDOW_OPENED);
1074 state |= OPENED;
1075 }
1076 }
1077
1078 static void updateChildFocusableWindowState(Window w) {
1079 if (w.peer != null && w.isShowing()) {
1080 ((WindowPeer)w.peer).updateFocusableWindowState();
1081 }
1082 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1083 Window child = w.ownedWindowList.elementAt(i).get();
1084 if (child != null) {
1085 updateChildFocusableWindowState(child);
1086 }
1087 }
1088 }
1089
1090 synchronized void postWindowEvent(int id) {
1091 if (windowListener != null
1092 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1093 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1094 WindowEvent e = new WindowEvent(this, id);
1095 Toolkit.getEventQueue().postEvent(e);
1096 }
1097 }
1098
1099 /**
1100 * Hide this Window, its subcomponents, and all of its owned children.
1101 * The Window and its subcomponents can be made visible again
1102 * with a call to {@code show}.
1103 * @see #show
1104 * @see #dispose
1105 * @deprecated As of JDK version 1.5, replaced by
1106 * {@link #setVisible(boolean)}.
1107 */
1108 @Deprecated
1109 public void hide() {
1110 synchronized(ownedWindowList) {
1111 for (int i = 0; i < ownedWindowList.size(); i++) {
1112 Window child = ownedWindowList.elementAt(i).get();
1113 if ((child != null) && child.visible) {
1114 child.hide();
1115 child.showWithParent = true;
1116 }
1117 }
1118 }
1119 if (isModalBlocked()) {
1120 modalBlocker.unblockWindow(this);
1121 }
1122 super.hide();
1123 locationByPlatform = false;
1124 }
1125
1126 final void clearMostRecentFocusOwnerOnHide() {
1127 /* do nothing */
1128 }
1129
1130 /**
1131 * Releases all of the native screen resources used by this
1132 * {@code Window}, its subcomponents, and all of its owned
1133 * children. That is, the resources for these {@code Component}s
1134 * will be destroyed, any memory they consume will be returned to the
1135 * OS, and they will be marked as undisplayable.
1136 * <p>
1137 * The {@code Window} and its subcomponents can be made displayable
1138 * again by rebuilding the native resources with a subsequent call to
1139 * {@code pack} or {@code show}. The states of the recreated
1140 * {@code Window} and its subcomponents will be identical to the
1141 * states of these objects at the point where the {@code Window}
1142 * was disposed (not accounting for additional modifications between
1143 * those actions).
1144 * <p>
1145 * <b>Note</b>: When the last displayable window
1146 * within the Java virtual machine (VM) is disposed of, the VM may
1147 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1148 * AWT Threading Issues</a> for more information.
1149 * @see Component#isDisplayable
1150 * @see #pack
1151 * @see #show
1152 */
1153 public void dispose() {
1154 doDispose();
1155 }
1156
1157 /*
1158 * Fix for 4872170.
1159 * If dispose() is called on parent then its children have to be disposed as well
1160 * as reported in javadoc. So we need to implement this functionality even if a
1161 * child overrides dispose() in a wrong way without calling super.dispose().
1162 */
1163 void disposeImpl() {
1164 dispose();
1165 if (peer != null) {
1166 doDispose();
1167 }
1168 }
1169
1170 void doDispose() {
1171 class DisposeAction implements Runnable {
1172 public void run() {
1173 disposing = true;
1174 try {
1175 // Check if this window is the fullscreen window for the
1176 // device. Exit the fullscreen mode prior to disposing
1177 // of the window if that's the case.
1178 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1179 if (gd.getFullScreenWindow() == Window.this) {
1180 gd.setFullScreenWindow(null);
1181 }
1182
1183 Object[] ownedWindowArray;
1184 synchronized(ownedWindowList) {
1185 ownedWindowArray = new Object[ownedWindowList.size()];
1186 ownedWindowList.copyInto(ownedWindowArray);
1187 }
1188 for (int i = 0; i < ownedWindowArray.length; i++) {
1189 Window child = (Window) (((WeakReference)
1190 (ownedWindowArray[i])).get());
1191 if (child != null) {
1192 child.disposeImpl();
1193 }
1194 }
1195 hide();
1196 beforeFirstShow = true;
1197 removeNotify();
1198 synchronized (inputContextLock) {
1199 if (inputContext != null) {
1200 inputContext.dispose();
1201 inputContext = null;
1202 }
1203 }
1204 clearCurrentFocusCycleRootOnHide();
1205 } finally {
1206 disposing = false;
1207 }
1208 }
1209 }
1210 boolean fireWindowClosedEvent = isDisplayable();
1211 DisposeAction action = new DisposeAction();
1212 if (EventQueue.isDispatchThread()) {
1213 action.run();
1214 }
1215 else {
1216 try {
1217 EventQueue.invokeAndWait(this, action);
1218 }
1219 catch (InterruptedException e) {
1220 System.err.println("Disposal was interrupted:");
1221 e.printStackTrace();
1222 }
1223 catch (InvocationTargetException e) {
1224 System.err.println("Exception during disposal:");
1225 e.printStackTrace();
1226 }
1227 }
1228 // Execute outside the Runnable because postWindowEvent is
1229 // synchronized on (this). We don't need to synchronize the call
1230 // on the EventQueue anyways.
1231 if (fireWindowClosedEvent) {
1232 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1233 }
1234 }
1235
1236 /*
1237 * Should only be called while holding the tree lock.
1238 * It's overridden here because parent == owner in Window,
1239 * and we shouldn't adjust counter on owner
1240 */
1241 void adjustListeningChildrenOnParent(long mask, int num) {
1242 }
1243
1244 // Should only be called while holding tree lock
1245 void adjustDescendantsOnParent(int num) {
1246 // do nothing since parent == owner and we shouldn't
1247 // adjust counter on owner
1248 }
1249
1250 /**
1251 * If this Window is visible, brings this Window to the front and may make
1252 * it the focused Window.
1253 * <p>
1254 * Places this Window at the top of the stacking order and shows it in
1255 * front of any other Windows in this VM. No action will take place if this
1256 * Window is not visible. Some platforms do not allow Windows which own
1257 * other Windows to appear on top of those owned Windows. Some platforms
1258 * may not permit this VM to place its Windows above windows of native
1259 * applications, or Windows of other VMs. This permission may depend on
1260 * whether a Window in this VM is already focused. Every attempt will be
1261 * made to move this Window as high as possible in the stacking order;
1262 * however, developers should not assume that this method will move this
1263 * Window above all other windows in every situation.
1264 * <p>
1265 * Developers must never assume that this Window is the focused or active
1266 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1267 * event. On platforms where the top-most window is the focused window, this
1268 * method will <b>probably</b> focus this Window (if it is not already focused)
1269 * under the following conditions:
1270 * <ul>
1271 * <li> The window meets the requirements outlined in the
1272 * {@link #isFocusableWindow} method.
1273 * <li> The window's property {@code autoRequestFocus} is of the
1274 * {@code true} value.
1275 * <li> Native windowing system allows the window to get focused.
1276 * </ul>
1277 * On platforms where the stacking order does not typically affect the focused
1278 * window, this method will <b>probably</b> leave the focused and active
1279 * Windows unchanged.
1280 * <p>
1281 * If this method causes this Window to be focused, and this Window is a
1282 * Frame or a Dialog, it will also become activated. If this Window is
1283 * focused, but it is not a Frame or a Dialog, then the first Frame or
1284 * Dialog that is an owner of this Window will be activated.
1285 * <p>
1286 * If this window is blocked by modal dialog, then the blocking dialog
1287 * is brought to the front and remains above the blocked window.
1288 *
1289 * @see #toBack
1290 * @see #setAutoRequestFocus
1291 * @see #isFocusableWindow
1292 */
1293 public void toFront() {
1294 toFront_NoClientCode();
1295 }
1296
1297 // This functionality is implemented in a final package-private method
1298 // to insure that it cannot be overridden by client subclasses.
1299 final void toFront_NoClientCode() {
1300 if (visible) {
1301 WindowPeer peer = (WindowPeer)this.peer;
1302 if (peer != null) {
1303 peer.toFront();
1304 }
1305 if (isModalBlocked()) {
1306 modalBlocker.toFront_NoClientCode();
1307 }
1308 }
1309 }
1310
1311 /**
1312 * If this Window is visible, sends this Window to the back and may cause
1313 * it to lose focus or activation if it is the focused or active Window.
1314 * <p>
1315 * Places this Window at the bottom of the stacking order and shows it
1316 * behind any other Windows in this VM. No action will take place is this
1317 * Window is not visible. Some platforms do not allow Windows which are
1318 * owned by other Windows to appear below their owners. Every attempt will
1319 * be made to move this Window as low as possible in the stacking order;
1320 * however, developers should not assume that this method will move this
1321 * Window below all other windows in every situation.
1322 * <p>
1323 * Because of variations in native windowing systems, no guarantees about
1324 * changes to the focused and active Windows can be made. Developers must
1325 * never assume that this Window is no longer the focused or active Window
1326 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1327 * event. On platforms where the top-most window is the focused window,
1328 * this method will <b>probably</b> cause this Window to lose focus. In
1329 * that case, the next highest, focusable Window in this VM will receive
1330 * focus. On platforms where the stacking order does not typically affect
1331 * the focused window, this method will <b>probably</b> leave the focused
1332 * and active Windows unchanged.
1333 *
1334 * @see #toFront
1335 */
1336 public void toBack() {
1337 toBack_NoClientCode();
1338 }
1339
1340 // This functionality is implemented in a final package-private method
1341 // to insure that it cannot be overridden by client subclasses.
1342 final void toBack_NoClientCode() {
1343 if(isAlwaysOnTop()) {
1344 try {
1345 setAlwaysOnTop(false);
1346 }catch(SecurityException e) {
1347 }
1348 }
1349 if (visible) {
1350 WindowPeer peer = (WindowPeer)this.peer;
1351 if (peer != null) {
1352 peer.toBack();
1353 }
1354 }
1355 }
1356
1357 /**
1358 * Returns the toolkit of this frame.
1359 * @return the toolkit of this window.
1360 * @see Toolkit
1361 * @see Toolkit#getDefaultToolkit
1362 * @see Component#getToolkit
1363 */
1364 public Toolkit getToolkit() {
1365 return Toolkit.getDefaultToolkit();
1366 }
1367
1368 /**
1369 * Gets the warning string that is displayed with this window.
1370 * If this window is insecure, the warning string is displayed
1371 * somewhere in the visible area of the window. A window is
1372 * insecure if there is a security manager and the security
1373 * manager denies
1374 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1375 * <p>
1376 * If the window is secure, then {@code getWarningString}
1377 * returns {@code null}. If the window is insecure, this
1378 * method checks for the system property
1379 * {@code awt.appletWarning}
1380 * and returns the string value of that property.
1381 * @return the warning string for this window.
1382 */
1383 public final String getWarningString() {
1384 return warningString;
1385 }
1386
1387 private void setWarningString() {
1388 warningString = null;
1389 SecurityManager sm = System.getSecurityManager();
1390 if (sm != null) {
1391 try {
1392 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1393 } catch (SecurityException se) {
1394 // make sure the privileged action is only
1395 // for getting the property! We don't want the
1396 // above checkPermission call to always succeed!
1397 warningString = AccessController.doPrivileged(
1398 new GetPropertyAction("awt.appletWarning",
1399 "Java Applet Window"));
1400 }
1401 }
1402 }
1403
1404 /**
1405 * Gets the {@code Locale} object that is associated
1406 * with this window, if the locale has been set.
1407 * If no locale has been set, then the default locale
1408 * is returned.
1409 * @return the locale that is set for this window.
1410 * @see java.util.Locale
1411 * @since 1.1
1412 */
1413 public Locale getLocale() {
1414 if (this.locale == null) {
1415 return Locale.getDefault();
1416 }
1417 return this.locale;
1418 }
1419
1420 /**
1421 * Gets the input context for this window. A window always has an input context,
1422 * which is shared by subcomponents unless they create and set their own.
1423 * @see Component#getInputContext
1424 * @since 1.2
1425 */
1426 public InputContext getInputContext() {
1427 synchronized (inputContextLock) {
1428 if (inputContext == null) {
1429 inputContext = InputContext.getInstance();
1430 }
1431 }
1432 return inputContext;
1433 }
1434
1435 /**
1436 * Set the cursor image to a specified cursor.
1437 * <p>
1438 * The method may have no visual effect if the Java platform
1439 * implementation and/or the native system do not support
1440 * changing the mouse cursor shape.
1441 * @param cursor One of the constants defined
1442 * by the {@code Cursor} class. If this parameter is null
1443 * then the cursor for this window will be set to the type
1444 * Cursor.DEFAULT_CURSOR.
1445 * @see Component#getCursor
1446 * @see Cursor
1447 * @since 1.1
1448 */
1449 public void setCursor(Cursor cursor) {
1450 if (cursor == null) {
1451 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1452 }
1453 super.setCursor(cursor);
1454 }
1455
1456 /**
1457 * Returns the owner of this window.
1458 *
1459 * @return the owner of this window
1460 * @since 1.2
1461 */
1462 public Window getOwner() {
1463 return getOwner_NoClientCode();
1464 }
1465 final Window getOwner_NoClientCode() {
1466 return (Window)parent;
1467 }
1468
1469 /**
1470 * Return an array containing all the windows this
1471 * window currently owns.
1472 *
1473 * @return the array of all the owned windows
1474 * @since 1.2
1475 */
1476 public Window[] getOwnedWindows() {
1477 return getOwnedWindows_NoClientCode();
1478 }
1479 final Window[] getOwnedWindows_NoClientCode() {
1480 Window[] realCopy;
1481
1482 synchronized(ownedWindowList) {
1483 // Recall that ownedWindowList is actually a Vector of
1484 // WeakReferences and calling get() on one of these references
1485 // may return null. Make two arrays-- one the size of the
1486 // Vector (fullCopy with size fullSize), and one the size of
1487 // all non-null get()s (realCopy with size realSize).
1488 int fullSize = ownedWindowList.size();
1489 int realSize = 0;
1490 Window[] fullCopy = new Window[fullSize];
1491
1492 for (int i = 0; i < fullSize; i++) {
1493 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1494
1495 if (fullCopy[realSize] != null) {
1496 realSize++;
1497 }
1498 }
1499
1500 if (fullSize != realSize) {
1501 realCopy = Arrays.copyOf(fullCopy, realSize);
1502 } else {
1503 realCopy = fullCopy;
1504 }
1505 }
1506
1507 return realCopy;
1508 }
1509
1510 boolean isModalBlocked() {
1511 return modalBlocker != null;
1512 }
1513
1514 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1515 this.modalBlocker = blocked ? blocker : null;
1516 if (peerCall) {
1517 WindowPeer peer = (WindowPeer)this.peer;
1518 if (peer != null) {
1519 peer.setModalBlocked(blocker, blocked);
1520 }
1521 }
1522 }
1523
1524 Dialog getModalBlocker() {
1525 return modalBlocker;
1526 }
1527
1528 /*
1529 * Returns a list of all displayable Windows, i. e. all the
1530 * Windows which peer is not null.
1531 *
1532 * @see #addNotify
1533 * @see #removeNotify
1534 */
1535 static IdentityArrayList<Window> getAllWindows() {
1536 synchronized (allWindows) {
1537 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1538 v.addAll(allWindows);
1539 return v;
1540 }
1541 }
1542
1543 static IdentityArrayList<Window> getAllUnblockedWindows() {
1544 synchronized (allWindows) {
1545 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1546 for (int i = 0; i < allWindows.size(); i++) {
1547 Window w = allWindows.get(i);
1548 if (!w.isModalBlocked()) {
1549 unblocked.add(w);
1550 }
1551 }
1552 return unblocked;
1553 }
1554 }
1555
1556 private static Window[] getWindows(AppContext appContext) {
1557 synchronized (Window.class) {
1558 Window[] realCopy;
1559 @SuppressWarnings("unchecked")
1560 Vector<WeakReference<Window>> windowList =
1561 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1562 if (windowList != null) {
1563 int fullSize = windowList.size();
1564 int realSize = 0;
1565 Window[] fullCopy = new Window[fullSize];
1566 for (int i = 0; i < fullSize; i++) {
1567 Window w = windowList.get(i).get();
1568 if (w != null) {
1569 fullCopy[realSize++] = w;
1570 }
1571 }
1572 if (fullSize != realSize) {
1573 realCopy = Arrays.copyOf(fullCopy, realSize);
1574 } else {
1575 realCopy = fullCopy;
1576 }
1577 } else {
1578 realCopy = new Window[0];
1579 }
1580 return realCopy;
1581 }
1582 }
1583
1584 /**
1585 * Returns an array of all {@code Window}s, both owned and ownerless,
1586 * created by this application.
1587 * If called from an applet, the array includes only the {@code Window}s
1588 * accessible by that applet.
1589 * <p>
1590 * <b>Warning:</b> this method may return system created windows, such
1591 * as a print dialog. Applications should not assume the existence of
1592 * these dialogs, nor should an application assume anything about these
1593 * dialogs such as component positions, {@code LayoutManager}s
1594 * or serialization.
1595 *
1596 * @return the array of all the {@code Window}s created by the application
1597 * @see Frame#getFrames
1598 * @see Window#getOwnerlessWindows
1599 *
1600 * @since 1.6
1601 */
1602 public static Window[] getWindows() {
1603 return getWindows(AppContext.getAppContext());
1604 }
1605
1606 /**
1607 * Returns an array of all {@code Window}s created by this application
1608 * that have no owner. They include {@code Frame}s and ownerless
1609 * {@code Dialog}s and {@code Window}s.
1610 * If called from an applet, the array includes only the {@code Window}s
1611 * accessible by that applet.
1612 * <p>
1613 * <b>Warning:</b> this method may return system created windows, such
1614 * as a print dialog. Applications should not assume the existence of
1615 * these dialogs, nor should an application assume anything about these
1616 * dialogs such as component positions, {@code LayoutManager}s
1617 * or serialization.
1618 *
1619 * @return the array of all the ownerless {@code Window}s
1620 * created by this application
1621 * @see Frame#getFrames
1622 * @see Window#getWindows()
1623 *
1624 * @since 1.6
1625 */
1626 public static Window[] getOwnerlessWindows() {
1627 Window[] allWindows = Window.getWindows();
1628
1629 int ownerlessCount = 0;
1630 for (Window w : allWindows) {
1631 if (w.getOwner() == null) {
1632 ownerlessCount++;
1633 }
1634 }
1635
1636 Window[] ownerless = new Window[ownerlessCount];
1637 int c = 0;
1638 for (Window w : allWindows) {
1639 if (w.getOwner() == null) {
1640 ownerless[c++] = w;
1641 }
1642 }
1643
1644 return ownerless;
1645 }
1646
1647 Window getDocumentRoot() {
1648 synchronized (getTreeLock()) {
1649 Window w = this;
1650 while (w.getOwner() != null) {
1651 w = w.getOwner();
1652 }
1653 return w;
1654 }
1655 }
1656
1657 /**
1658 * Specifies the modal exclusion type for this window. If a window is modal
1659 * excluded, it is not blocked by some modal dialogs. See {@link
1660 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1661 * possible modal exclusion types.
1662 * <p>
1663 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1664 * <p>
1665 * Note: changing the modal exclusion type for a visible window may have no
1666 * effect until it is hidden and then shown again.
1667 *
1668 * @param exclusionType the modal exclusion type for this window; a {@code null}
1669 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1670 * NO_EXCLUDE}
1671 * @throws SecurityException if the calling thread does not have permission
1672 * to set the modal exclusion property to the window with the given
1673 * {@code exclusionType}
1674 * @see java.awt.Dialog.ModalExclusionType
1675 * @see java.awt.Window#getModalExclusionType
1676 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1677 *
1678 * @since 1.6
1679 */
1680 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1681 if (exclusionType == null) {
1682 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1683 }
1684 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1685 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1686 }
1687 if (modalExclusionType == exclusionType) {
1688 return;
1689 }
1690 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1691 SecurityManager sm = System.getSecurityManager();
1692 if (sm != null) {
1693 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1694 }
1695 }
1696 modalExclusionType = exclusionType;
1697
1698 // if we want on-fly changes, we need to uncomment the lines below
1699 // and override the method in Dialog to use modalShow() instead
1700 // of updateChildrenBlocking()
1701 /*
1702 if (isModalBlocked()) {
1703 modalBlocker.unblockWindow(this);
1704 }
1705 Dialog.checkShouldBeBlocked(this);
1706 updateChildrenBlocking();
1707 */
1708 }
1709
1710 /**
1711 * Returns the modal exclusion type of this window.
1712 *
1713 * @return the modal exclusion type of this window
1714 *
1715 * @see java.awt.Dialog.ModalExclusionType
1716 * @see java.awt.Window#setModalExclusionType
1717 *
1718 * @since 1.6
1719 */
1720 public Dialog.ModalExclusionType getModalExclusionType() {
1721 return modalExclusionType;
1722 }
1723
1724 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1725 if ((modalExclusionType != null) &&
1726 modalExclusionType.compareTo(exclusionType) >= 0)
1727 {
1728 return true;
1729 }
1730 Window owner = getOwner_NoClientCode();
1731 return (owner != null) && owner.isModalExcluded(exclusionType);
1732 }
1733
1734 void updateChildrenBlocking() {
1735 Vector<Window> childHierarchy = new Vector<Window>();
1736 Window[] ownedWindows = getOwnedWindows();
1737 for (int i = 0; i < ownedWindows.length; i++) {
1738 childHierarchy.add(ownedWindows[i]);
1739 }
1740 int k = 0;
1741 while (k < childHierarchy.size()) {
1742 Window w = childHierarchy.get(k);
1743 if (w.isVisible()) {
1744 if (w.isModalBlocked()) {
1745 Dialog blocker = w.getModalBlocker();
1746 blocker.unblockWindow(w);
1747 }
1748 Dialog.checkShouldBeBlocked(w);
1749 Window[] wOwned = w.getOwnedWindows();
1750 for (int j = 0; j < wOwned.length; j++) {
1751 childHierarchy.add(wOwned[j]);
1752 }
1753 }
1754 k++;
1755 }
1756 }
1757
1758 /**
1759 * Adds the specified window listener to receive window events from
1760 * this window.
1761 * If l is null, no exception is thrown and no action is performed.
1762 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1763 * >AWT Threading Issues</a> for details on AWT's threading model.
1764 *
1765 * @param l the window listener
1766 * @see #removeWindowListener
1767 * @see #getWindowListeners
1768 */
1769 public synchronized void addWindowListener(WindowListener l) {
1770 if (l == null) {
1771 return;
1772 }
1773 newEventsOnly = true;
1774 windowListener = AWTEventMulticaster.add(windowListener, l);
1775 }
1776
1777 /**
1778 * Adds the specified window state listener to receive window
1779 * events from this window. If {@code l} is {@code null},
1780 * no exception is thrown and no action is performed.
1781 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1782 * >AWT Threading Issues</a> for details on AWT's threading model.
1783 *
1784 * @param l the window state listener
1785 * @see #removeWindowStateListener
1786 * @see #getWindowStateListeners
1787 * @since 1.4
1788 */
1789 public synchronized void addWindowStateListener(WindowStateListener l) {
1790 if (l == null) {
1791 return;
1792 }
1793 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1794 newEventsOnly = true;
1795 }
1796
1797 /**
1798 * Adds the specified window focus listener to receive window events
1799 * from this window.
1800 * If l is null, no exception is thrown and no action is performed.
1801 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1802 * >AWT Threading Issues</a> for details on AWT's threading model.
1803 *
1804 * @param l the window focus listener
1805 * @see #removeWindowFocusListener
1806 * @see #getWindowFocusListeners
1807 * @since 1.4
1808 */
1809 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1810 if (l == null) {
1811 return;
1812 }
1813 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1814 newEventsOnly = true;
1815 }
1816
1817 /**
1818 * Removes the specified window listener so that it no longer
1819 * receives window events from this window.
1820 * If l is null, no exception is thrown and no action is performed.
1821 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1822 * >AWT Threading Issues</a> for details on AWT's threading model.
1823 *
1824 * @param l the window listener
1825 * @see #addWindowListener
1826 * @see #getWindowListeners
1827 */
1828 public synchronized void removeWindowListener(WindowListener l) {
1829 if (l == null) {
1830 return;
1831 }
1832 windowListener = AWTEventMulticaster.remove(windowListener, l);
1833 }
1834
1835 /**
1836 * Removes the specified window state listener so that it no
1837 * longer receives window events from this window. If
1838 * {@code l} is {@code null}, no exception is thrown and
1839 * no action is performed.
1840 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1841 * >AWT Threading Issues</a> for details on AWT's threading model.
1842 *
1843 * @param l the window state listener
1844 * @see #addWindowStateListener
1845 * @see #getWindowStateListeners
1846 * @since 1.4
1847 */
1848 public synchronized void removeWindowStateListener(WindowStateListener l) {
1849 if (l == null) {
1850 return;
1851 }
1852 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1853 }
1854
1855 /**
1856 * Removes the specified window focus listener so that it no longer
1857 * receives window events from this window.
1858 * If l is null, no exception is thrown and no action is performed.
1859 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1860 * >AWT Threading Issues</a> for details on AWT's threading model.
1861 *
1862 * @param l the window focus listener
1863 * @see #addWindowFocusListener
1864 * @see #getWindowFocusListeners
1865 * @since 1.4
1866 */
1867 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1868 if (l == null) {
1869 return;
1870 }
1871 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1872 }
1873
1874 /**
1875 * Returns an array of all the window listeners
1876 * registered on this window.
1877 *
1878 * @return all of this window's {@code WindowListener}s
1879 * or an empty array if no window
1880 * listeners are currently registered
1881 *
1882 * @see #addWindowListener
1883 * @see #removeWindowListener
1884 * @since 1.4
1885 */
1886 public synchronized WindowListener[] getWindowListeners() {
1887 return getListeners(WindowListener.class);
1888 }
1889
1890 /**
1891 * Returns an array of all the window focus listeners
1892 * registered on this window.
1893 *
1894 * @return all of this window's {@code WindowFocusListener}s
1895 * or an empty array if no window focus
1896 * listeners are currently registered
1897 *
1898 * @see #addWindowFocusListener
1899 * @see #removeWindowFocusListener
1900 * @since 1.4
1901 */
1902 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1903 return getListeners(WindowFocusListener.class);
1904 }
1905
1906 /**
1907 * Returns an array of all the window state listeners
1908 * registered on this window.
1909 *
1910 * @return all of this window's {@code WindowStateListener}s
1911 * or an empty array if no window state
1912 * listeners are currently registered
1913 *
1914 * @see #addWindowStateListener
1915 * @see #removeWindowStateListener
1916 * @since 1.4
1917 */
1918 public synchronized WindowStateListener[] getWindowStateListeners() {
1919 return getListeners(WindowStateListener.class);
1920 }
1921
1922
1923 /**
1924 * Returns an array of all the objects currently registered
1925 * as <code><em>Foo</em>Listener</code>s
1926 * upon this {@code Window}.
1927 * <code><em>Foo</em>Listener</code>s are registered using the
1928 * <code>add<em>Foo</em>Listener</code> method.
1929 *
1930 * <p>
1931 *
1932 * You can specify the {@code listenerType} argument
1933 * with a class literal, such as
1934 * <code><em>Foo</em>Listener.class</code>.
1935 * For example, you can query a
1936 * {@code Window w}
1937 * for its window listeners with the following code:
1938 *
1939 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1940 *
1941 * If no such listeners exist, this method returns an empty array.
1942 *
1943 * @param listenerType the type of listeners requested; this parameter
1944 * should specify an interface that descends from
1945 * {@code java.util.EventListener}
1946 * @return an array of all objects registered as
1947 * <code><em>Foo</em>Listener</code>s on this window,
1948 * or an empty array if no such
1949 * listeners have been added
1950 * @exception ClassCastException if {@code listenerType}
1951 * doesn't specify a class or interface that implements
1952 * {@code java.util.EventListener}
1953 * @exception NullPointerException if {@code listenerType} is {@code null}
1954 *
1955 * @see #getWindowListeners
1956 * @since 1.3
1957 */
1958 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1959 EventListener l = null;
1960 if (listenerType == WindowFocusListener.class) {
1961 l = windowFocusListener;
1962 } else if (listenerType == WindowStateListener.class) {
1963 l = windowStateListener;
1964 } else if (listenerType == WindowListener.class) {
1965 l = windowListener;
1966 } else {
1967 return super.getListeners(listenerType);
1968 }
1969 return AWTEventMulticaster.getListeners(l, listenerType);
1970 }
1971
1972 // REMIND: remove when filtering is handled at lower level
1973 boolean eventEnabled(AWTEvent e) {
1974 switch(e.id) {
1975 case WindowEvent.WINDOW_OPENED:
1976 case WindowEvent.WINDOW_CLOSING:
1977 case WindowEvent.WINDOW_CLOSED:
1978 case WindowEvent.WINDOW_ICONIFIED:
1979 case WindowEvent.WINDOW_DEICONIFIED:
1980 case WindowEvent.WINDOW_ACTIVATED:
1981 case WindowEvent.WINDOW_DEACTIVATED:
1982 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1983 windowListener != null) {
1984 return true;
1985 }
1986 return false;
1987 case WindowEvent.WINDOW_GAINED_FOCUS:
1988 case WindowEvent.WINDOW_LOST_FOCUS:
1989 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1990 windowFocusListener != null) {
1991 return true;
1992 }
1993 return false;
1994 case WindowEvent.WINDOW_STATE_CHANGED:
1995 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1996 windowStateListener != null) {
1997 return true;
1998 }
1999 return false;
2000 default:
2001 break;
2002 }
2003 return super.eventEnabled(e);
2004 }
2005
2006 /**
2007 * Processes events on this window. If the event is an
2008 * {@code WindowEvent}, it invokes the
2009 * {@code processWindowEvent} method, else it invokes its
2010 * superclass's {@code processEvent}.
2011 * <p>Note that if the event parameter is {@code null}
2012 * the behavior is unspecified and may result in an
2013 * exception.
2014 *
2015 * @param e the event
2016 */
2017 protected void processEvent(AWTEvent e) {
2018 if (e instanceof WindowEvent) {
2019 switch (e.getID()) {
2020 case WindowEvent.WINDOW_OPENED:
2021 case WindowEvent.WINDOW_CLOSING:
2022 case WindowEvent.WINDOW_CLOSED:
2023 case WindowEvent.WINDOW_ICONIFIED:
2024 case WindowEvent.WINDOW_DEICONIFIED:
2025 case WindowEvent.WINDOW_ACTIVATED:
2026 case WindowEvent.WINDOW_DEACTIVATED:
2027 processWindowEvent((WindowEvent)e);
2028 break;
2029 case WindowEvent.WINDOW_GAINED_FOCUS:
2030 case WindowEvent.WINDOW_LOST_FOCUS:
2031 processWindowFocusEvent((WindowEvent)e);
2032 break;
2033 case WindowEvent.WINDOW_STATE_CHANGED:
2034 processWindowStateEvent((WindowEvent)e);
2035 break;
2036 }
2037 return;
2038 }
2039 super.processEvent(e);
2040 }
2041
2042 /**
2043 * Processes window events occurring on this window by
2044 * dispatching them to any registered WindowListener objects.
2045 * NOTE: This method will not be called unless window events
2046 * are enabled for this component; this happens when one of the
2047 * following occurs:
2048 * <ul>
2049 * <li>A WindowListener object is registered via
2050 * {@code addWindowListener}
2051 * <li>Window events are enabled via {@code enableEvents}
2052 * </ul>
2053 * <p>Note that if the event parameter is {@code null}
2054 * the behavior is unspecified and may result in an
2055 * exception.
2056 *
2057 * @param e the window event
2058 * @see Component#enableEvents
2059 */
2060 protected void processWindowEvent(WindowEvent e) {
2061 WindowListener listener = windowListener;
2062 if (listener != null) {
2063 switch(e.getID()) {
2064 case WindowEvent.WINDOW_OPENED:
2065 listener.windowOpened(e);
2066 break;
2067 case WindowEvent.WINDOW_CLOSING:
2068 listener.windowClosing(e);
2069 break;
2070 case WindowEvent.WINDOW_CLOSED:
2071 listener.windowClosed(e);
2072 break;
2073 case WindowEvent.WINDOW_ICONIFIED:
2074 listener.windowIconified(e);
2075 break;
2076 case WindowEvent.WINDOW_DEICONIFIED:
2077 listener.windowDeiconified(e);
2078 break;
2079 case WindowEvent.WINDOW_ACTIVATED:
2080 listener.windowActivated(e);
2081 break;
2082 case WindowEvent.WINDOW_DEACTIVATED:
2083 listener.windowDeactivated(e);
2084 break;
2085 default:
2086 break;
2087 }
2088 }
2089 }
2090
2091 /**
2092 * Processes window focus event occurring on this window by
2093 * dispatching them to any registered WindowFocusListener objects.
2094 * NOTE: this method will not be called unless window focus events
2095 * are enabled for this window. This happens when one of the
2096 * following occurs:
2097 * <ul>
2098 * <li>a WindowFocusListener is registered via
2099 * {@code addWindowFocusListener}
2100 * <li>Window focus events are enabled via {@code enableEvents}
2101 * </ul>
2102 * <p>Note that if the event parameter is {@code null}
2103 * the behavior is unspecified and may result in an
2104 * exception.
2105 *
2106 * @param e the window focus event
2107 * @see Component#enableEvents
2108 * @since 1.4
2109 */
2110 protected void processWindowFocusEvent(WindowEvent e) {
2111 WindowFocusListener listener = windowFocusListener;
2112 if (listener != null) {
2113 switch (e.getID()) {
2114 case WindowEvent.WINDOW_GAINED_FOCUS:
2115 listener.windowGainedFocus(e);
2116 break;
2117 case WindowEvent.WINDOW_LOST_FOCUS:
2118 listener.windowLostFocus(e);
2119 break;
2120 default:
2121 break;
2122 }
2123 }
2124 }
2125
2126 /**
2127 * Processes window state event occurring on this window by
2128 * dispatching them to any registered {@code WindowStateListener}
2129 * objects.
2130 * NOTE: this method will not be called unless window state events
2131 * are enabled for this window. This happens when one of the
2132 * following occurs:
2133 * <ul>
2134 * <li>a {@code WindowStateListener} is registered via
2135 * {@code addWindowStateListener}
2136 * <li>window state events are enabled via {@code enableEvents}
2137 * </ul>
2138 * <p>Note that if the event parameter is {@code null}
2139 * the behavior is unspecified and may result in an
2140 * exception.
2141 *
2142 * @param e the window state event
2143 * @see java.awt.Component#enableEvents
2144 * @since 1.4
2145 */
2146 protected void processWindowStateEvent(WindowEvent e) {
2147 WindowStateListener listener = windowStateListener;
2148 if (listener != null) {
2149 switch (e.getID()) {
2150 case WindowEvent.WINDOW_STATE_CHANGED:
2151 listener.windowStateChanged(e);
2152 break;
2153 default:
2154 break;
2155 }
2156 }
2157 }
2158
2159 /**
2160 * Implements a debugging hook -- checks to see if
2161 * the user has typed <i>control-shift-F1</i>. If so,
2162 * the list of child windows is dumped to {@code System.out}.
2163 * @param e the keyboard event
2164 */
2165 void preProcessKeyEvent(KeyEvent e) {
2166 // Dump the list of child windows to System.out if debug is enabled.
2167 if (DebugSettings.getInstance().getBoolean("on", false)) {
2168 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2169 e.isControlDown() && e.isShiftDown() &&
2170 e.getID() == KeyEvent.KEY_PRESSED) {
2171 list(System.out, 0);
2172 }
2173 }
2174 }
2175
2176 void postProcessKeyEvent(KeyEvent e) {
2177 // Do nothing
2178 }
2179
2180
2181 /**
2182 * Sets whether this window should always be above other windows. If
2183 * there are multiple always-on-top windows, their relative order is
2184 * unspecified and platform dependent.
2185 * <p>
2186 * If some other window is already always-on-top then the
2187 * relative order between these windows is unspecified (depends on
2188 * platform). No window can be brought to be over the always-on-top
2189 * window except maybe another always-on-top window.
2190 * <p>
2191 * All windows owned by an always-on-top window inherit this state and
2192 * automatically become always-on-top. If a window ceases to be
2193 * always-on-top, the windows that it owns will no longer be
2194 * always-on-top. When an always-on-top window is sent {@link #toBack
2195 * toBack}, its always-on-top state is set to {@code false}.
2196 *
2197 * <p> When this method is called on a window with a value of
2198 * {@code true}, and the window is visible and the platform
2199 * supports always-on-top for this window, the window is immediately
2200 * brought forward, "sticking" it in the top-most position. If the
2201 * window isn`t currently visible, this method sets the always-on-top
2202 * state to {@code true} but does not bring the window forward.
2203 * When the window is later shown, it will be always-on-top.
2204 *
2205 * <p> When this method is called on a window with a value of
2206 * {@code false} the always-on-top state is set to normal. It may also
2207 * cause an unspecified, platform-dependent change in the z-order of
2208 * top-level windows, but other always-on-top windows will remain in
2209 * top-most position. Calling this method with a value of {@code false}
2210 * on a window that has a normal state has no effect.
2211 *
2212 * <p><b>Note</b>: some platforms might not support always-on-top
2213 * windows. To detect if always-on-top windows are supported by the
2214 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2215 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2216 * isn't supported for this window or this window's toolkit does not
2217 * support always-on-top windows, calling this method has no effect.
2218 * <p>
2219 * If a SecurityManager is installed, the calling thread must be
2220 * granted the AWTPermission "setWindowAlwaysOnTop" in
2221 * order to set the value of this property. If this
2222 * permission is not granted, this method will throw a
2223 * SecurityException, and the current value of the property will
2224 * be left unchanged.
2225 *
2226 * @param alwaysOnTop true if the window should always be above other
2227 * windows
2228 * @throws SecurityException if the calling thread does not have
2229 * permission to set the value of always-on-top property
2230 *
2231 * @see #isAlwaysOnTop
2232 * @see #toFront
2233 * @see #toBack
2234 * @see AWTPermission
2235 * @see #isAlwaysOnTopSupported
2236 * @see #getToolkit
2237 * @see Toolkit#isAlwaysOnTopSupported
2238 * @since 1.5
2239 */
2240 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2241 SecurityManager security = System.getSecurityManager();
2242 if (security != null) {
2243 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2244 }
2245
2246 boolean oldAlwaysOnTop;
2247 synchronized(this) {
2248 oldAlwaysOnTop = this.alwaysOnTop;
2249 this.alwaysOnTop = alwaysOnTop;
2250 }
2251 if (oldAlwaysOnTop != alwaysOnTop ) {
2252 if (isAlwaysOnTopSupported()) {
2253 WindowPeer peer = (WindowPeer)this.peer;
2254 synchronized(getTreeLock()) {
2255 if (peer != null) {
2256 peer.updateAlwaysOnTopState();
2257 }
2258 }
2259 }
2260 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2261 }
2262 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2263 }
2264
2265 @SuppressWarnings({"rawtypes", "unchecked"})
2266 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2267 WeakReference<Window>[] ownedWindowArray;
2268 synchronized (ownedWindowList) {
2269 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2270 ownedWindowList.copyInto(ownedWindowArray);
2271 }
2272
2273 for (WeakReference<Window> ref : ownedWindowArray) {
2274 Window window = ref.get();
2275 if (window != null) {
2276 try {
2277 window.setAlwaysOnTop(alwaysOnTop);
2278 } catch (SecurityException ignore) {
2279 }
2280 }
2281 }
2282 }
2283
2284 /**
2285 * Returns whether the always-on-top mode is supported for this
2286 * window. Some platforms may not support always-on-top windows, some
2287 * may support only some kinds of top-level windows; for example,
2288 * a platform may not support always-on-top modal dialogs.
2289 *
2290 * @return {@code true}, if the always-on-top mode is supported for
2291 * this window and this window's toolkit supports always-on-top windows,
2292 * {@code false} otherwise
2293 *
2294 * @see #setAlwaysOnTop(boolean)
2295 * @see #getToolkit
2296 * @see Toolkit#isAlwaysOnTopSupported
2297 * @since 1.6
2298 */
2299 public boolean isAlwaysOnTopSupported() {
2300 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2301 }
2302
2303
2304 /**
2305 * Returns whether this window is an always-on-top window.
2306 * @return {@code true}, if the window is in always-on-top state,
2307 * {@code false} otherwise
2308 * @see #setAlwaysOnTop
2309 * @since 1.5
2310 */
2311 public final boolean isAlwaysOnTop() {
2312 return alwaysOnTop;
2313 }
2314
2315
2316 /**
2317 * Returns the child Component of this Window that has focus if this Window
2318 * is focused; returns null otherwise.
2319 *
2320 * @return the child Component with focus, or null if this Window is not
2321 * focused
2322 * @see #getMostRecentFocusOwner
2323 * @see #isFocused
2324 */
2325 public Component getFocusOwner() {
2326 return (isFocused())
2327 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2328 getFocusOwner()
2329 : null;
2330 }
2331
2332 /**
2333 * Returns the child Component of this Window that will receive the focus
2334 * when this Window is focused. If this Window is currently focused, this
2335 * method returns the same Component as {@code getFocusOwner()}. If
2336 * this Window is not focused, then the child Component that most recently
2337 * requested focus will be returned. If no child Component has ever
2338 * requested focus, and this is a focusable Window, then this Window's
2339 * initial focusable Component is returned. If no child Component has ever
2340 * requested focus, and this is a non-focusable Window, null is returned.
2341 *
2342 * @return the child Component that will receive focus when this Window is
2343 * focused
2344 * @see #getFocusOwner
2345 * @see #isFocused
2346 * @see #isFocusableWindow
2347 * @since 1.4
2348 */
2349 public Component getMostRecentFocusOwner() {
2350 if (isFocused()) {
2351 return getFocusOwner();
2352 } else {
2353 Component mostRecent =
2354 KeyboardFocusManager.getMostRecentFocusOwner(this);
2355 if (mostRecent != null) {
2356 return mostRecent;
2357 } else {
2358 return (isFocusableWindow())
2359 ? getFocusTraversalPolicy().getInitialComponent(this)
2360 : null;
2361 }
2362 }
2363 }
2364
2365 /**
2366 * Returns whether this Window is active. Only a Frame or a Dialog may be
2367 * active. The native windowing system may denote the active Window or its
2368 * children with special decorations, such as a highlighted title bar. The
2369 * active Window is always either the focused Window, or the first Frame or
2370 * Dialog that is an owner of the focused Window.
2371 *
2372 * @return whether this is the active Window.
2373 * @see #isFocused
2374 * @since 1.4
2375 */
2376 public boolean isActive() {
2377 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2378 getActiveWindow() == this);
2379 }
2380
2381 /**
2382 * Returns whether this Window is focused. If there exists a focus owner,
2383 * the focused Window is the Window that is, or contains, that focus owner.
2384 * If there is no focus owner, then no Window is focused.
2385 * <p>
2386 * If the focused Window is a Frame or a Dialog it is also the active
2387 * Window. Otherwise, the active Window is the first Frame or Dialog that
2388 * is an owner of the focused Window.
2389 *
2390 * @return whether this is the focused Window.
2391 * @see #isActive
2392 * @since 1.4
2393 */
2394 public boolean isFocused() {
2395 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2396 getGlobalFocusedWindow() == this);
2397 }
2398
2399 /**
2400 * Gets a focus traversal key for this Window. (See {@code
2401 * setFocusTraversalKeys} for a full description of each key.)
2402 * <p>
2403 * If the traversal key has not been explicitly set for this Window,
2404 * then this Window's parent's traversal key is returned. If the
2405 * traversal key has not been explicitly set for any of this Window's
2406 * ancestors, then the current KeyboardFocusManager's default traversal key
2407 * is returned.
2408 *
2409 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2410 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2411 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2412 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2413 * @return the AWTKeyStroke for the specified key
2414 * @see Container#setFocusTraversalKeys
2415 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2416 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2417 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2418 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2419 * @throws IllegalArgumentException if id is not one of
2420 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2421 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2422 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2423 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2424 * @since 1.4
2425 */
2426 @SuppressWarnings("unchecked")
2427 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2428 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2429 throw new IllegalArgumentException("invalid focus traversal key identifier");
2430 }
2431
2432 // Okay to return Set directly because it is an unmodifiable view
2433 @SuppressWarnings("rawtypes")
2434 Set keystrokes = (focusTraversalKeys != null)
2435 ? focusTraversalKeys[id]
2436 : null;
2437
2438 if (keystrokes != null) {
2439 return keystrokes;
2440 } else {
2441 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2442 getDefaultFocusTraversalKeys(id);
2443 }
2444 }
2445
2446 /**
2447 * Does nothing because Windows must always be roots of a focus traversal
2448 * cycle. The passed-in value is ignored.
2449 *
2450 * @param focusCycleRoot this value is ignored
2451 * @see #isFocusCycleRoot
2452 * @see Container#setFocusTraversalPolicy
2453 * @see Container#getFocusTraversalPolicy
2454 * @since 1.4
2455 */
2456 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2457 }
2458
2459 /**
2460 * Always returns {@code true} because all Windows must be roots of a
2461 * focus traversal cycle.
2462 *
2463 * @return {@code true}
2464 * @see #setFocusCycleRoot
2465 * @see Container#setFocusTraversalPolicy
2466 * @see Container#getFocusTraversalPolicy
2467 * @since 1.4
2468 */
2469 public final boolean isFocusCycleRoot() {
2470 return true;
2471 }
2472
2473 /**
2474 * Always returns {@code null} because Windows have no ancestors; they
2475 * represent the top of the Component hierarchy.
2476 *
2477 * @return {@code null}
2478 * @see Container#isFocusCycleRoot()
2479 * @since 1.4
2480 */
2481 public final Container getFocusCycleRootAncestor() {
2482 return null;
2483 }
2484
2485 /**
2486 * Returns whether this Window can become the focused Window, that is,
2487 * whether this Window or any of its subcomponents can become the focus
2488 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2489 * must be set to {@code true}. For a Window which is not a Frame or
2490 * Dialog to be focusable, its focusable Window state must be set to
2491 * {@code true}, its nearest owning Frame or Dialog must be
2492 * showing on the screen, and it must contain at least one Component in
2493 * its focus traversal cycle. If any of these conditions is not met, then
2494 * neither this Window nor any of its subcomponents can become the focus
2495 * owner.
2496 *
2497 * @return {@code true} if this Window can be the focused Window;
2498 * {@code false} otherwise
2499 * @see #getFocusableWindowState
2500 * @see #setFocusableWindowState
2501 * @see #isShowing
2502 * @see Component#isFocusable
2503 * @since 1.4
2504 */
2505 public final boolean isFocusableWindow() {
2506 // If a Window/Frame/Dialog was made non-focusable, then it is always
2507 // non-focusable.
2508 if (!getFocusableWindowState()) {
2509 return false;
2510 }
2511
2512 // All other tests apply only to Windows.
2513 if (this instanceof Frame || this instanceof Dialog) {
2514 return true;
2515 }
2516
2517 // A Window must have at least one Component in its root focus
2518 // traversal cycle to be focusable.
2519 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2520 return false;
2521 }
2522
2523 // A Window's nearest owning Frame or Dialog must be showing on the
2524 // screen.
2525 for (Window owner = getOwner(); owner != null;
2526 owner = owner.getOwner())
2527 {
2528 if (owner instanceof Frame || owner instanceof Dialog) {
2529 return owner.isShowing();
2530 }
2531 }
2532
2533 return false;
2534 }
2535
2536 /**
2537 * Returns whether this Window can become the focused Window if it meets
2538 * the other requirements outlined in {@code isFocusableWindow}. If
2539 * this method returns {@code false}, then
2540 * {@code isFocusableWindow} will return {@code false} as well.
2541 * If this method returns {@code true}, then
2542 * {@code isFocusableWindow} may return {@code true} or
2543 * {@code false} depending upon the other requirements which must be
2544 * met in order for a Window to be focusable.
2545 * <p>
2546 * By default, all Windows have a focusable Window state of
2547 * {@code true}.
2548 *
2549 * @return whether this Window can be the focused Window
2550 * @see #isFocusableWindow
2551 * @see #setFocusableWindowState
2552 * @see #isShowing
2553 * @see Component#setFocusable
2554 * @since 1.4
2555 */
2556 public boolean getFocusableWindowState() {
2557 return focusableWindowState;
2558 }
2559
2560 /**
2561 * Sets whether this Window can become the focused Window if it meets
2562 * the other requirements outlined in {@code isFocusableWindow}. If
2563 * this Window's focusable Window state is set to {@code false}, then
2564 * {@code isFocusableWindow} will return {@code false}. If this
2565 * Window's focusable Window state is set to {@code true}, then
2566 * {@code isFocusableWindow} may return {@code true} or
2567 * {@code false} depending upon the other requirements which must be
2568 * met in order for a Window to be focusable.
2569 * <p>
2570 * Setting a Window's focusability state to {@code false} is the
2571 * standard mechanism for an application to identify to the AWT a Window
2572 * which will be used as a floating palette or toolbar, and thus should be
2573 * a non-focusable Window.
2574 *
2575 * Setting the focusability state on a visible {@code Window}
2576 * can have a delayed effect on some platforms — the actual
2577 * change may happen only when the {@code Window} becomes
2578 * hidden and then visible again. To ensure consistent behavior
2579 * across platforms, set the {@code Window}'s focusable state
2580 * when the {@code Window} is invisible and then show it.
2581 *
2582 * @param focusableWindowState whether this Window can be the focused
2583 * Window
2584 * @see #isFocusableWindow
2585 * @see #getFocusableWindowState
2586 * @see #isShowing
2587 * @see Component#setFocusable
2588 * @since 1.4
2589 */
2590 public void setFocusableWindowState(boolean focusableWindowState) {
2591 boolean oldFocusableWindowState;
2592 synchronized (this) {
2593 oldFocusableWindowState = this.focusableWindowState;
2594 this.focusableWindowState = focusableWindowState;
2595 }
2596 WindowPeer peer = (WindowPeer)this.peer;
2597 if (peer != null) {
2598 peer.updateFocusableWindowState();
2599 }
2600 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2601 focusableWindowState);
2602 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2603 for (Window owner = getOwner();
2604 owner != null;
2605 owner = owner.getOwner())
2606 {
2607 Component toFocus =
2608 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2609 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) {
2610 return;
2611 }
2612 }
2613 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2614 clearGlobalFocusOwnerPriv();
2615 }
2616 }
2617
2618 /**
2619 * Sets whether this window should receive focus on
2620 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2621 * or being moved to the front (with a call to {@link #toFront}).
2622 * <p>
2623 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2624 * (e.g. when showing an owner of the window makes the window to be shown).
2625 * {@link #toFront} may also be called indirectly (e.g. when
2626 * {@link #setVisible setVisible(true)} is called on already visible window).
2627 * In all such cases this property takes effect as well.
2628 * <p>
2629 * The value of the property is not inherited by owned windows.
2630 *
2631 * @param autoRequestFocus whether this window should be focused on
2632 * subsequently being shown or being moved to the front
2633 * @see #isAutoRequestFocus
2634 * @see #isFocusableWindow
2635 * @see #setVisible
2636 * @see #toFront
2637 * @since 1.7
2638 */
2639 public void setAutoRequestFocus(boolean autoRequestFocus) {
2640 this.autoRequestFocus = autoRequestFocus;
2641 }
2642
2643 /**
2644 * Returns whether this window should receive focus on subsequently being shown
2645 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2646 * (with a call to {@link #toFront}).
2647 * <p>
2648 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2649 *
2650 * @return {@code autoRequestFocus} value
2651 * @see #setAutoRequestFocus
2652 * @since 1.7
2653 */
2654 public boolean isAutoRequestFocus() {
2655 return autoRequestFocus;
2656 }
2657
2658 /**
2659 * Adds a PropertyChangeListener to the listener list. The listener is
2660 * registered for all bound properties of this class, including the
2661 * following:
2662 * <ul>
2663 * <li>this Window's font ("font")</li>
2664 * <li>this Window's background color ("background")</li>
2665 * <li>this Window's foreground color ("foreground")</li>
2666 * <li>this Window's focusability ("focusable")</li>
2667 * <li>this Window's focus traversal keys enabled state
2668 * ("focusTraversalKeysEnabled")</li>
2669 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2670 * ("forwardFocusTraversalKeys")</li>
2671 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2672 * ("backwardFocusTraversalKeys")</li>
2673 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2674 * ("upCycleFocusTraversalKeys")</li>
2675 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2676 * ("downCycleFocusTraversalKeys")</li>
2677 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2678 * </li>
2679 * <li>this Window's focusable Window state ("focusableWindowState")
2680 * </li>
2681 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2682 * </ul>
2683 * Note that if this Window is inheriting a bound property, then no
2684 * event will be fired in response to a change in the inherited property.
2685 * <p>
2686 * If listener is null, no exception is thrown and no action is performed.
2687 *
2688 * @param listener the PropertyChangeListener to be added
2689 *
2690 * @see Component#removePropertyChangeListener
2691 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2692 */
2693 public void addPropertyChangeListener(PropertyChangeListener listener) {
2694 super.addPropertyChangeListener(listener);
2695 }
2696
2697 /**
2698 * Adds a PropertyChangeListener to the listener list for a specific
2699 * property. The specified property may be user-defined, or one of the
2700 * following:
2701 * <ul>
2702 * <li>this Window's font ("font")</li>
2703 * <li>this Window's background color ("background")</li>
2704 * <li>this Window's foreground color ("foreground")</li>
2705 * <li>this Window's focusability ("focusable")</li>
2706 * <li>this Window's focus traversal keys enabled state
2707 * ("focusTraversalKeysEnabled")</li>
2708 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2709 * ("forwardFocusTraversalKeys")</li>
2710 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2711 * ("backwardFocusTraversalKeys")</li>
2712 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2713 * ("upCycleFocusTraversalKeys")</li>
2714 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2715 * ("downCycleFocusTraversalKeys")</li>
2716 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2717 * </li>
2718 * <li>this Window's focusable Window state ("focusableWindowState")
2719 * </li>
2720 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2721 * </ul>
2722 * Note that if this Window is inheriting a bound property, then no
2723 * event will be fired in response to a change in the inherited property.
2724 * <p>
2725 * If listener is null, no exception is thrown and no action is performed.
2726 *
2727 * @param propertyName one of the property names listed above
2728 * @param listener the PropertyChangeListener to be added
2729 *
2730 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2731 * @see Component#removePropertyChangeListener
2732 */
2733 public void addPropertyChangeListener(String propertyName,
2734 PropertyChangeListener listener) {
2735 super.addPropertyChangeListener(propertyName, listener);
2736 }
2737
2738 /**
2739 * Indicates if this container is a validate root.
2740 * <p>
2741 * {@code Window} objects are the validate roots, and, therefore, they
2742 * override this method to return {@code true}.
2743 *
2744 * @return {@code true}
2745 * @since 1.7
2746 * @see java.awt.Container#isValidateRoot
2747 */
2748 @Override
2749 public boolean isValidateRoot() {
2750 return true;
2751 }
2752
2753 /**
2754 * Dispatches an event to this window or one of its sub components.
2755 * @param e the event
2756 */
2757 void dispatchEventImpl(AWTEvent e) {
2758 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2759 invalidate();
2760 validate();
2761 }
2762 super.dispatchEventImpl(e);
2763 }
2764
2765 /**
2766 * @deprecated As of JDK version 1.1
2767 * replaced by {@code dispatchEvent(AWTEvent)}.
2768 */
2769 @Deprecated
2770 public boolean postEvent(Event e) {
2771 if (handleEvent(e)) {
2772 e.consume();
2773 return true;
2774 }
2775 return false;
2776 }
2777
2778 /**
2779 * Checks if this Window is showing on screen.
2780 * @see Component#setVisible
2781 */
2782 public boolean isShowing() {
2783 return visible;
2784 }
2785
2786 boolean isDisposing() {
2787 return disposing;
2788 }
2789
2790 /**
2791 * @deprecated As of J2SE 1.4, replaced by
2792 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2793 * @param rb the resource bundle
2794 */
2795 @Deprecated
2796 public void applyResourceBundle(ResourceBundle rb) {
2797 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2798 }
2799
2800 /**
2801 * @deprecated As of J2SE 1.4, replaced by
2802 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2803 * @param rbName the resource name
2804 */
2805 @Deprecated
2806 public void applyResourceBundle(String rbName) {
2807 // Use the unnamed module from the TCCL or system class loader.
2808 ClassLoader cl = Thread.currentThread().getContextClassLoader();
2809 if (cl == null) {
2810 cl = ClassLoader.getSystemClassLoader();
2811 }
2812 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule()));
2813 }
2814
2815 /*
2816 * Support for tracking all windows owned by this window
2817 */
2818 void addOwnedWindow(WeakReference<Window> weakWindow) {
2819 if (weakWindow != null) {
2820 synchronized(ownedWindowList) {
2821 // this if statement should really be an assert, but we don't
2822 // have asserts...
2823 if (!ownedWindowList.contains(weakWindow)) {
2824 ownedWindowList.addElement(weakWindow);
2825 }
2826 }
2827 }
2828 }
2829
2830 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2831 if (weakWindow != null) {
2832 // synchronized block not required since removeElement is
2833 // already synchronized
2834 ownedWindowList.removeElement(weakWindow);
2835 }
2836 }
2837
2838 void connectOwnedWindow(Window child) {
2839 child.parent = this;
2840 addOwnedWindow(child.weakThis);
2841 child.disposerRecord.updateOwner();
2842 }
2843
2844 private void addToWindowList() {
2845 synchronized (Window.class) {
2846 @SuppressWarnings("unchecked")
2847 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2848 if (windowList == null) {
2849 windowList = new Vector<WeakReference<Window>>();
2850 appContext.put(Window.class, windowList);
2851 }
2852 windowList.add(weakThis);
2853 }
2854 }
2855
2856 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2857 synchronized (Window.class) {
2858 @SuppressWarnings("unchecked")
2859 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2860 if (windowList != null) {
2861 windowList.remove(weakThis);
2862 }
2863 }
2864 }
2865
2866 private void removeFromWindowList() {
2867 removeFromWindowList(appContext, weakThis);
2868 }
2869
2870 /**
2871 * Window type.
2872 *
2873 * Synchronization: ObjectLock
2874 */
2875 private Type type = Type.NORMAL;
2876
2877 /**
2878 * Sets the type of the window.
2879 *
2880 * This method can only be called while the window is not displayable.
2881 *
2882 * @param type the window type
2883 * @throws IllegalComponentStateException if the window
2884 * is displayable.
2885 * @throws IllegalArgumentException if the type is {@code null}
2886 * @see Component#isDisplayable
2887 * @see #getType
2888 * @since 1.7
2889 */
2890 public void setType(Type type) {
2891 if (type == null) {
2892 throw new IllegalArgumentException("type should not be null.");
2893 }
2894 synchronized (getTreeLock()) {
2895 if (isDisplayable()) {
2896 throw new IllegalComponentStateException(
2897 "The window is displayable.");
2898 }
2899 synchronized (getObjectLock()) {
2900 this.type = type;
2901 }
2902 }
2903 }
2904
2905 /**
2906 * Returns the type of the window.
2907 *
2908 * @return the type of the window
2909 * @see #setType
2910 * @since 1.7
2911 */
2912 public Type getType() {
2913 synchronized (getObjectLock()) {
2914 return type;
2915 }
2916 }
2917
2918 /**
2919 * The window serialized data version.
2920 *
2921 * @serial
2922 */
2923 private int windowSerializedDataVersion = 2;
2924
2925 /**
2926 * Writes default serializable fields to stream. Writes
2927 * a list of serializable {@code WindowListener}s and
2928 * {@code WindowFocusListener}s as optional data.
2929 * Writes a list of child windows as optional data.
2930 * Writes a list of icon images as optional data
2931 *
2932 * @param s the {@code ObjectOutputStream} to write
2933 * @serialData {@code null} terminated sequence of
2934 * 0 or more pairs; the pair consists of a {@code String}
2935 * and {@code Object}; the {@code String}
2936 * indicates the type of object and is one of the following:
2937 * {@code windowListenerK} indicating a
2938 * {@code WindowListener} object;
2939 * {@code windowFocusWindowK} indicating a
2940 * {@code WindowFocusListener} object;
2941 * {@code ownedWindowK} indicating a child
2942 * {@code Window} object
2943 *
2944 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2945 * @see Component#windowListenerK
2946 * @see Component#windowFocusListenerK
2947 * @see Component#ownedWindowK
2948 * @see #readObject(ObjectInputStream)
2949 */
2950 private void writeObject(ObjectOutputStream s) throws IOException {
2951 synchronized (this) {
2952 // Update old focusMgr fields so that our object stream can be read
2953 // by previous releases
2954 focusMgr = new FocusManager();
2955 focusMgr.focusRoot = this;
2956 focusMgr.focusOwner = getMostRecentFocusOwner();
2957
2958 s.defaultWriteObject();
2959
2960 // Clear fields so that we don't keep extra references around
2961 focusMgr = null;
2962
2963 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2964 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2965 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2966 }
2967
2968 s.writeObject(null);
2969
2970 synchronized (ownedWindowList) {
2971 for (int i = 0; i < ownedWindowList.size(); i++) {
2972 Window child = ownedWindowList.elementAt(i).get();
2973 if (child != null) {
2974 s.writeObject(ownedWindowK);
2975 s.writeObject(child);
2976 }
2977 }
2978 }
2979 s.writeObject(null);
2980
2981 //write icon array
2982 if (icons != null) {
2983 for (Image i : icons) {
2984 if (i instanceof Serializable) {
2985 s.writeObject(i);
2986 }
2987 }
2988 }
2989 s.writeObject(null);
2990 }
2991
2992 //
2993 // Part of deserialization procedure to be called before
2994 // user's code.
2995 //
2996 private void initDeserializedWindow() {
2997 setWarningString();
2998 inputContextLock = new Object();
2999
3000 // Deserialized Windows are not yet visible.
3001 visible = false;
3002
3003 weakThis = new WeakReference<>(this);
3004
3005 anchor = new Object();
3006 disposerRecord = new WindowDisposerRecord(appContext, this);
3007 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
3008
3009 addToWindowList();
3010 initGC(null);
3011 ownedWindowList = new Vector<>();
3012 }
3013
3014 private void deserializeResources(ObjectInputStream s)
3015 throws ClassNotFoundException, IOException, HeadlessException {
3016
3017 if (windowSerializedDataVersion < 2) {
3018 // Translate old-style focus tracking to new model. For 1.4 and
3019 // later releases, we'll rely on the Window's initial focusable
3020 // Component.
3021 if (focusMgr != null) {
3022 if (focusMgr.focusOwner != null) {
3023 KeyboardFocusManager.
3024 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3025 }
3026 }
3027
3028 // This field is non-transient and relies on default serialization.
3029 // However, the default value is insufficient, so we need to set
3030 // it explicitly for object data streams prior to 1.4.
3031 focusableWindowState = true;
3032
3033
3034 }
3035
3036 Object keyOrNull;
3037 while(null != (keyOrNull = s.readObject())) {
3038 String key = ((String)keyOrNull).intern();
3039
3040 if (windowListenerK == key) {
3041 addWindowListener((WindowListener)(s.readObject()));
3042 } else if (windowFocusListenerK == key) {
3043 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3044 } else if (windowStateListenerK == key) {
3045 addWindowStateListener((WindowStateListener)(s.readObject()));
3046 } else // skip value for unrecognized key
3047 s.readObject();
3048 }
3049
3050 try {
3051 while (null != (keyOrNull = s.readObject())) {
3052 String key = ((String)keyOrNull).intern();
3053
3054 if (ownedWindowK == key)
3055 connectOwnedWindow((Window) s.readObject());
3056
3057 else // skip value for unrecognized key
3058 s.readObject();
3059 }
3060
3061 //read icons
3062 Object obj = s.readObject(); //Throws OptionalDataException
3063 //for pre1.6 objects.
3064 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3065 //pre1.6 version if icons is null.
3066 while (obj != null) {
3067 if (obj instanceof Image) {
3068 icons.add((Image)obj);
3069 }
3070 obj = s.readObject();
3071 }
3072 }
3073 catch (OptionalDataException e) {
3074 // 1.1 serialized form
3075 // ownedWindowList will be updated by Frame.readObject
3076 }
3077
3078 }
3079
3080 /**
3081 * Reads the {@code ObjectInputStream} and an optional
3082 * list of listeners to receive various events fired by
3083 * the component; also reads a list of
3084 * (possibly {@code null}) child windows.
3085 * Unrecognized keys or values will be ignored.
3086 *
3087 * @param s the {@code ObjectInputStream} to read
3088 * @exception HeadlessException if
3089 * {@code GraphicsEnvironment.isHeadless} returns
3090 * {@code true}
3091 * @see java.awt.GraphicsEnvironment#isHeadless
3092 * @see #writeObject
3093 */
3094 private void readObject(ObjectInputStream s)
3095 throws ClassNotFoundException, IOException, HeadlessException
3096 {
3097 GraphicsEnvironment.checkHeadless();
3098 initDeserializedWindow();
3099 ObjectInputStream.GetField f = s.readFields();
3100
3101 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3102 state = f.get("state", 0);
3103 focusableWindowState = f.get("focusableWindowState", true);
3104 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3105 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3106 // Note: 1.4 (or later) doesn't use focusMgr
3107 focusMgr = (FocusManager)f.get("focusMgr", null);
3108 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3109 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3110 setModalExclusionType(et); // since 6.0
3111 boolean aot = f.get("alwaysOnTop", false);
3112 if(aot) {
3113 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3114 }
3115 shape = (Shape)f.get("shape", null);
3116 opacity = (Float)f.get("opacity", 1.0f);
3117
3118 this.securityWarningWidth = 0;
3119 this.securityWarningHeight = 0;
3120
3121 deserializeResources(s);
3122 }
3123
3124 /*
3125 * --- Accessibility Support ---
3126 *
3127 */
3128
3129 /**
3130 * Gets the AccessibleContext associated with this Window.
3131 * For windows, the AccessibleContext takes the form of an
3132 * AccessibleAWTWindow.
3133 * A new AccessibleAWTWindow instance is created if necessary.
3134 *
3135 * @return an AccessibleAWTWindow that serves as the
3136 * AccessibleContext of this Window
3137 * @since 1.3
3138 */
3139 public AccessibleContext getAccessibleContext() {
3140 if (accessibleContext == null) {
3141 accessibleContext = new AccessibleAWTWindow();
3142 }
3143 return accessibleContext;
3144 }
3145
3146 /**
3147 * This class implements accessibility support for the
3148 * {@code Window} class. It provides an implementation of the
3149 * Java Accessibility API appropriate to window user-interface elements.
3150 * @since 1.3
3151 */
3152 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3153 {
3154 /*
3155 * JDK 1.3 serialVersionUID
3156 */
3157 private static final long serialVersionUID = 4215068635060671780L;
3158
3159 /**
3160 * Get the role of this object.
3161 *
3162 * @return an instance of AccessibleRole describing the role of the
3163 * object
3164 * @see javax.accessibility.AccessibleRole
3165 */
3166 public AccessibleRole getAccessibleRole() {
3167 return AccessibleRole.WINDOW;
3168 }
3169
3170 /**
3171 * Get the state of this object.
3172 *
3173 * @return an instance of AccessibleStateSet containing the current
3174 * state set of the object
3175 * @see javax.accessibility.AccessibleState
3176 */
3177 public AccessibleStateSet getAccessibleStateSet() {
3178 AccessibleStateSet states = super.getAccessibleStateSet();
3179 if (getFocusOwner() != null) {
3180 states.add(AccessibleState.ACTIVE);
3181 }
3182 return states;
3183 }
3184
3185 } // inner class AccessibleAWTWindow
3186
3187 @Override
3188 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3189 if (gc == null) {
3190 gc = GraphicsEnvironment.
3191 getLocalGraphicsEnvironment().
3192 getDefaultScreenDevice().
3193 getDefaultConfiguration();
3194 }
3195 synchronized (getTreeLock()) {
3196 super.setGraphicsConfiguration(gc);
3197 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3198 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3199 }
3200 }
3201 }
3202
3203 /**
3204 * Sets the location of the window relative to the specified
3205 * component according to the following scenarios.
3206 * <p>
3207 * The target screen mentioned below is a screen to which
3208 * the window should be placed after the setLocationRelativeTo
3209 * method is called.
3210 * <ul>
3211 * <li>If the component is {@code null}, or the {@code
3212 * GraphicsConfiguration} associated with this component is
3213 * {@code null}, the window is placed in the center of the
3214 * screen. The center point can be obtained with the {@link
3215 * GraphicsEnvironment#getCenterPoint
3216 * GraphicsEnvironment.getCenterPoint} method.
3217 * <li>If the component is not {@code null}, but it is not
3218 * currently showing, the window is placed in the center of
3219 * the target screen defined by the {@code
3220 * GraphicsConfiguration} associated with this component.
3221 * <li>If the component is not {@code null} and is shown on
3222 * the screen, then the window is located in such a way that
3223 * the center of the window coincides with the center of the
3224 * component.
3225 * </ul>
3226 * <p>
3227 * If the screens configuration does not allow the window to
3228 * be moved from one screen to another, then the window is
3229 * only placed at the location determined according to the
3230 * above conditions and its {@code GraphicsConfiguration} is
3231 * not changed.
3232 * <p>
3233 * <b>Note</b>: If the lower edge of the window is out of the screen,
3234 * then the window is placed to the side of the {@code Component}
3235 * that is closest to the center of the screen. So if the
3236 * component is on the right part of the screen, the window
3237 * is placed to its left, and vice versa.
3238 * <p>
3239 * If after the window location has been calculated, the upper,
3240 * left, or right edge of the window is out of the screen,
3241 * then the window is located in such a way that the upper,
3242 * left, or right edge of the window coincides with the
3243 * corresponding edge of the screen. If both left and right
3244 * edges of the window are out of the screen, the window is
3245 * placed at the left side of the screen. The similar placement
3246 * will occur if both top and bottom edges are out of the screen.
3247 * In that case, the window is placed at the top side of the screen.
3248 * <p>
3249 * The method changes the geometry-related data. Therefore,
3250 * the native windowing system may ignore such requests, or it may modify
3251 * the requested data, so that the {@code Window} object is placed and sized
3252 * in a way that corresponds closely to the desktop settings.
3253 *
3254 * @param c the component in relation to which the window's location
3255 * is determined
3256 * @see java.awt.GraphicsEnvironment#getCenterPoint
3257 * @since 1.4
3258 */
3259 public void setLocationRelativeTo(Component c) {
3260 // target location
3261 int dx = 0, dy = 0;
3262 // target GC
3263 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3264 Rectangle gcBounds = gc.getBounds();
3265
3266 Dimension windowSize = getSize();
3267
3268 // search a top-level of c
3269 Window componentWindow = SunToolkit.getContainingWindow(c);
3270 if ((c == null) || (componentWindow == null)) {
3271 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3272 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3273 gcBounds = gc.getBounds();
3274 Point centerPoint = ge.getCenterPoint();
3275 dx = centerPoint.x - windowSize.width / 2;
3276 dy = centerPoint.y - windowSize.height / 2;
3277 } else if (!c.isShowing()) {
3278 gc = componentWindow.getGraphicsConfiguration();
3279 gcBounds = gc.getBounds();
3280 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3281 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3282 } else {
3283 gc = componentWindow.getGraphicsConfiguration();
3284 gcBounds = gc.getBounds();
3285 Dimension compSize = c.getSize();
3286 Point compLocation = c.getLocationOnScreen();
3287 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3288 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3289
3290 // Adjust for bottom edge being offscreen
3291 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3292 dy = gcBounds.y + gcBounds.height - windowSize.height;
3293 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3294 dx = compLocation.x + compSize.width;
3295 } else {
3296 dx = compLocation.x - windowSize.width;
3297 }
3298 }
3299 }
3300
3301 // Avoid being placed off the edge of the screen:
3302 // bottom
3303 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3304 dy = gcBounds.y + gcBounds.height - windowSize.height;
3305 }
3306 // top
3307 if (dy < gcBounds.y) {
3308 dy = gcBounds.y;
3309 }
3310 // right
3311 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3312 dx = gcBounds.x + gcBounds.width - windowSize.width;
3313 }
3314 // left
3315 if (dx < gcBounds.x) {
3316 dx = gcBounds.x;
3317 }
3318
3319 setLocation(dx, dy);
3320 }
3321
3322 /**
3323 * Overridden from Component. Top-level Windows should not propagate a
3324 * MouseWheelEvent beyond themselves into their owning Windows.
3325 */
3326 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3327
3328 /**
3329 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3330 */
3331 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3332
3333 /**
3334 * Creates a new strategy for multi-buffering on this component.
3335 * Multi-buffering is useful for rendering performance. This method
3336 * attempts to create the best strategy available with the number of
3337 * buffers supplied. It will always create a {@code BufferStrategy}
3338 * with that number of buffers.
3339 * A page-flipping strategy is attempted first, then a blitting strategy
3340 * using accelerated buffers. Finally, an unaccelerated blitting
3341 * strategy is used.
3342 * <p>
3343 * Each time this method is called,
3344 * the existing buffer strategy for this component is discarded.
3345 * @param numBuffers number of buffers to create
3346 * @exception IllegalArgumentException if numBuffers is less than 1.
3347 * @exception IllegalStateException if the component is not displayable
3348 * @see #isDisplayable
3349 * @see #getBufferStrategy
3350 * @since 1.4
3351 */
3352 public void createBufferStrategy(int numBuffers) {
3353 super.createBufferStrategy(numBuffers);
3354 }
3355
3356 /**
3357 * Creates a new strategy for multi-buffering on this component with the
3358 * required buffer capabilities. This is useful, for example, if only
3359 * accelerated memory or page flipping is desired (as specified by the
3360 * buffer capabilities).
3361 * <p>
3362 * Each time this method
3363 * is called, the existing buffer strategy for this component is discarded.
3364 * @param numBuffers number of buffers to create, including the front buffer
3365 * @param caps the required capabilities for creating the buffer strategy;
3366 * cannot be {@code null}
3367 * @exception AWTException if the capabilities supplied could not be
3368 * supported or met; this may happen, for example, if there is not enough
3369 * accelerated memory currently available, or if page flipping is specified
3370 * but not possible.
3371 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3372 * caps is {@code null}
3373 * @see #getBufferStrategy
3374 * @since 1.4
3375 */
3376 public void createBufferStrategy(int numBuffers,
3377 BufferCapabilities caps) throws AWTException {
3378 super.createBufferStrategy(numBuffers, caps);
3379 }
3380
3381 /**
3382 * Returns the {@code BufferStrategy} used by this component. This
3383 * method will return null if a {@code BufferStrategy} has not yet
3384 * been created or has been disposed.
3385 *
3386 * @return the buffer strategy used by this component
3387 * @see #createBufferStrategy
3388 * @since 1.4
3389 */
3390 public BufferStrategy getBufferStrategy() {
3391 return super.getBufferStrategy();
3392 }
3393
3394 Component getTemporaryLostComponent() {
3395 return temporaryLostComponent;
3396 }
3397 Component setTemporaryLostComponent(Component component) {
3398 Component previousComp = temporaryLostComponent;
3399 // Check that "component" is an acceptable focus owner and don't store it otherwise
3400 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3401 if (component == null || component.canBeFocusOwner()) {
3402 temporaryLostComponent = component;
3403 } else {
3404 temporaryLostComponent = null;
3405 }
3406 return previousComp;
3407 }
3408
3409 /**
3410 * Checks whether this window can contain focus owner.
3411 * Verifies that it is focusable and as container it can container focus owner.
3412 * @since 1.5
3413 */
3414 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3415 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3416 }
3417
3418 private volatile boolean locationByPlatform = locationByPlatformProp;
3419
3420
3421 /**
3422 * Sets whether this Window should appear at the default location for the
3423 * native windowing system or at the current location (returned by
3424 * {@code getLocation}) the next time the Window is made visible.
3425 * This behavior resembles a native window shown without programmatically
3426 * setting its location. Most windowing systems cascade windows if their
3427 * locations are not explicitly set. The actual location is determined once the
3428 * window is shown on the screen.
3429 * <p>
3430 * This behavior can also be enabled by setting the System Property
3431 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3432 * take precedence.
3433 * <p>
3434 * Calls to {@code setVisible}, {@code setLocation} and
3435 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3436 * this property of the Window.
3437 * <p>
3438 * For example, after the following code is executed:
3439 * <pre>
3440 * setLocationByPlatform(true);
3441 * setVisible(true);
3442 * boolean flag = isLocationByPlatform();
3443 * </pre>
3444 * The window will be shown at platform's default location and
3445 * {@code flag} will be {@code false}.
3446 * <p>
3447 * In the following sample:
3448 * <pre>
3449 * setLocationByPlatform(true);
3450 * setLocation(10, 10);
3451 * boolean flag = isLocationByPlatform();
3452 * setVisible(true);
3453 * </pre>
3454 * The window will be shown at (10, 10) and {@code flag} will be
3455 * {@code false}.
3456 *
3457 * @param locationByPlatform {@code true} if this Window should appear
3458 * at the default location, {@code false} if at the current location
3459 * @throws IllegalComponentStateException if the window
3460 * is showing on screen and locationByPlatform is {@code true}.
3461 * @see #setLocation
3462 * @see #isShowing
3463 * @see #setVisible
3464 * @see #isLocationByPlatform
3465 * @see java.lang.System#getProperty(String)
3466 * @since 1.5
3467 */
3468 public void setLocationByPlatform(boolean locationByPlatform) {
3469 synchronized (getTreeLock()) {
3470 if (locationByPlatform && isShowing()) {
3471 throw new IllegalComponentStateException("The window is showing on screen.");
3472 }
3473 this.locationByPlatform = locationByPlatform;
3474 }
3475 }
3476
3477 /**
3478 * Returns {@code true} if this Window will appear at the default location
3479 * for the native windowing system the next time this Window is made visible.
3480 * This method always returns {@code false} if the Window is showing on the
3481 * screen.
3482 *
3483 * @return whether this Window will appear at the default location
3484 * @see #setLocationByPlatform
3485 * @see #isShowing
3486 * @since 1.5
3487 */
3488 public boolean isLocationByPlatform() {
3489 return locationByPlatform;
3490 }
3491
3492 /**
3493 * {@inheritDoc}
3494 * <p>
3495 * The {@code width} or {@code height} values
3496 * are automatically enlarged if either is less than
3497 * the minimum size as specified by previous call to
3498 * {@code setMinimumSize}.
3499 * <p>
3500 * The method changes the geometry-related data. Therefore,
3501 * the native windowing system may ignore such requests, or it may modify
3502 * the requested data, so that the {@code Window} object is placed and sized
3503 * in a way that corresponds closely to the desktop settings.
3504 *
3505 * @see #getBounds
3506 * @see #setLocation(int, int)
3507 * @see #setLocation(Point)
3508 * @see #setSize(int, int)
3509 * @see #setSize(Dimension)
3510 * @see #setMinimumSize
3511 * @see #setLocationByPlatform
3512 * @see #isLocationByPlatform
3513 * @since 1.6
3514 */
3515 public void setBounds(int x, int y, int width, int height) {
3516 synchronized (getTreeLock()) {
3517 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3518 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3519 {
3520 locationByPlatform = false;
3521 }
3522 super.setBounds(x, y, width, height);
3523 }
3524 }
3525
3526 /**
3527 * {@inheritDoc}
3528 * <p>
3529 * The {@code r.width} or {@code r.height} values
3530 * will be automatically enlarged if either is less than
3531 * the minimum size as specified by previous call to
3532 * {@code setMinimumSize}.
3533 * <p>
3534 * The method changes the geometry-related data. Therefore,
3535 * the native windowing system may ignore such requests, or it may modify
3536 * the requested data, so that the {@code Window} object is placed and sized
3537 * in a way that corresponds closely to the desktop settings.
3538 *
3539 * @see #getBounds
3540 * @see #setLocation(int, int)
3541 * @see #setLocation(Point)
3542 * @see #setSize(int, int)
3543 * @see #setSize(Dimension)
3544 * @see #setMinimumSize
3545 * @see #setLocationByPlatform
3546 * @see #isLocationByPlatform
3547 * @since 1.6
3548 */
3549 public void setBounds(Rectangle r) {
3550 setBounds(r.x, r.y, r.width, r.height);
3551 }
3552
3553 /**
3554 * Determines whether this component will be displayed on the screen.
3555 * @return {@code true} if the component and all of its ancestors
3556 * until a toplevel window are visible, {@code false} otherwise
3557 */
3558 boolean isRecursivelyVisible() {
3559 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3560 // We're overriding isRecursivelyVisible to implement this policy.
3561 return visible;
3562 }
3563
3564
3565 // ******************** SHAPES & TRANSPARENCY CODE ********************
3566
3567 /**
3568 * Returns the opacity of the window.
3569 *
3570 * @return the opacity of the window
3571 *
3572 * @see Window#setOpacity(float)
3573 * @see GraphicsDevice.WindowTranslucency
3574 *
3575 * @since 1.7
3576 */
3577 public float getOpacity() {
3578 return opacity;
3579 }
3580
3581 /**
3582 * Sets the opacity of the window.
3583 * <p>
3584 * The opacity value is in the range [0..1]. Note that setting the opacity
3585 * level of 0 may or may not disable the mouse event handling on this
3586 * window. This is a platform-dependent behavior.
3587 * <p>
3588 * The following conditions must be met in order to set the opacity value
3589 * less than {@code 1.0f}:
3590 * <ul>
3591 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3592 * translucency must be supported by the underlying system
3593 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3594 * and {@link Dialog#setUndecorated})
3595 * <li>The window must not be in full-screen mode (see {@link
3596 * GraphicsDevice#setFullScreenWindow(Window)})
3597 * </ul>
3598 * <p>
3599 * If the requested opacity value is less than {@code 1.0f}, and any of the
3600 * above conditions are not met, the window opacity will not change,
3601 * and the {@code IllegalComponentStateException} will be thrown.
3602 * <p>
3603 * The translucency levels of individual pixels may also be effected by the
3604 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3605 * current shape of this window (see {@link #setShape(Shape)}).
3606 *
3607 * @param opacity the opacity level to set to the window
3608 *
3609 * @throws IllegalArgumentException if the opacity is out of the range
3610 * [0..1]
3611 * @throws IllegalComponentStateException if the window is decorated and
3612 * the opacity is less than {@code 1.0f}
3613 * @throws IllegalComponentStateException if the window is in full screen
3614 * mode, and the opacity is less than {@code 1.0f}
3615 * @throws UnsupportedOperationException if the {@code
3616 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3617 * translucency is not supported and the opacity is less than
3618 * {@code 1.0f}
3619 *
3620 * @see Window#getOpacity
3621 * @see Window#setBackground(Color)
3622 * @see Window#setShape(Shape)
3623 * @see Frame#isUndecorated
3624 * @see Dialog#isUndecorated
3625 * @see GraphicsDevice.WindowTranslucency
3626 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3627 *
3628 * @since 1.7
3629 */
3630 @SuppressWarnings("deprecation")
3631 public void setOpacity(float opacity) {
3632 synchronized (getTreeLock()) {
3633 if (opacity < 0.0f || opacity > 1.0f) {
3634 throw new IllegalArgumentException(
3635 "The value of opacity should be in the range [0.0f .. 1.0f].");
3636 }
3637 if (opacity < 1.0f) {
3638 GraphicsConfiguration gc = getGraphicsConfiguration();
3639 GraphicsDevice gd = gc.getDevice();
3640 if (gc.getDevice().getFullScreenWindow() == this) {
3641 throw new IllegalComponentStateException(
3642 "Setting opacity for full-screen window is not supported.");
3643 }
3644 if (!gd.isWindowTranslucencySupported(
3645 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3646 {
3647 throw new UnsupportedOperationException(
3648 "TRANSLUCENT translucency is not supported.");
3649 }
3650 }
3651 this.opacity = opacity;
3652 WindowPeer peer = (WindowPeer) this.peer;
3653 if (peer != null) {
3654 peer.setOpacity(opacity);
3655 }
3656 }
3657 }
3658
3659 /**
3660 * Returns the shape of the window.
3661 *
3662 * The value returned by this method may not be the same as
3663 * previously set with {@code setShape(shape)}, but it is guaranteed
3664 * to represent the same shape.
3665 *
3666 * @return the shape of the window or {@code null} if no
3667 * shape is specified for the window
3668 *
3669 * @see Window#setShape(Shape)
3670 * @see GraphicsDevice.WindowTranslucency
3671 *
3672 * @since 1.7
3673 */
3674 public Shape getShape() {
3675 synchronized (getTreeLock()) {
3676 return shape == null ? null : new Path2D.Float(shape);
3677 }
3678 }
3679
3680 /**
3681 * Sets the shape of the window.
3682 * <p>
3683 * Setting a shape cuts off some parts of the window. Only the parts that
3684 * belong to the given {@link Shape} remain visible and clickable. If
3685 * the shape argument is {@code null}, this method restores the default
3686 * shape, making the window rectangular on most platforms.
3687 * <p>
3688 * The following conditions must be met to set a non-null shape:
3689 * <ul>
3690 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3691 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3692 * underlying system
3693 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3694 * and {@link Dialog#setUndecorated})
3695 * <li>The window must not be in full-screen mode (see {@link
3696 * GraphicsDevice#setFullScreenWindow(Window)})
3697 * </ul>
3698 * <p>
3699 * If the requested shape is not {@code null}, and any of the above
3700 * conditions are not met, the shape of this window will not change,
3701 * and either the {@code UnsupportedOperationException} or {@code
3702 * IllegalComponentStateException} will be thrown.
3703 * <p>
3704 * The translucency levels of individual pixels may also be effected by the
3705 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3706 * opacity value (see {@link #setOpacity(float)}). See {@link
3707 * GraphicsDevice.WindowTranslucency} for more details.
3708 *
3709 * @param shape the shape to set to the window
3710 *
3711 * @throws IllegalComponentStateException if the shape is not {@code
3712 * null} and the window is decorated
3713 * @throws IllegalComponentStateException if the shape is not {@code
3714 * null} and the window is in full-screen mode
3715 * @throws UnsupportedOperationException if the shape is not {@code
3716 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3717 * PERPIXEL_TRANSPARENT} translucency is not supported
3718 *
3719 * @see Window#getShape()
3720 * @see Window#setBackground(Color)
3721 * @see Window#setOpacity(float)
3722 * @see Frame#isUndecorated
3723 * @see Dialog#isUndecorated
3724 * @see GraphicsDevice.WindowTranslucency
3725 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3726 *
3727 * @since 1.7
3728 */
3729 public void setShape(Shape shape) {
3730 synchronized (getTreeLock()) {
3731 if (shape != null) {
3732 GraphicsConfiguration gc = getGraphicsConfiguration();
3733 GraphicsDevice gd = gc.getDevice();
3734 if (gc.getDevice().getFullScreenWindow() == this) {
3735 throw new IllegalComponentStateException(
3736 "Setting shape for full-screen window is not supported.");
3737 }
3738 if (!gd.isWindowTranslucencySupported(
3739 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3740 {
3741 throw new UnsupportedOperationException(
3742 "PERPIXEL_TRANSPARENT translucency is not supported.");
3743 }
3744 }
3745 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3746 WindowPeer peer = (WindowPeer) this.peer;
3747 if (peer != null) {
3748 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3749 }
3750 }
3751 }
3752
3753 /**
3754 * Gets the background color of this window.
3755 * <p>
3756 * Note that the alpha component of the returned color indicates whether
3757 * the window is in the non-opaque (per-pixel translucent) mode.
3758 *
3759 * @return this component's background color
3760 *
3761 * @see Window#setBackground(Color)
3762 * @see Window#isOpaque
3763 * @see GraphicsDevice.WindowTranslucency
3764 */
3765 @Override
3766 public Color getBackground() {
3767 return super.getBackground();
3768 }
3769
3770 /**
3771 * Sets the background color of this window.
3772 * <p>
3773 * If the windowing system supports the {@link
3774 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3775 * translucency, the alpha component of the given background color
3776 * may effect the mode of operation for this window: it indicates whether
3777 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3778 * (alpha is less than {@code 1.0f}). If the given background color is
3779 * {@code null}, the window is considered completely opaque.
3780 * <p>
3781 * All the following conditions must be met to enable the per-pixel
3782 * transparency mode for this window:
3783 * <ul>
3784 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3785 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3786 * device where this window is located
3787 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3788 * and {@link Dialog#setUndecorated})
3789 * <li>The window must not be in full-screen mode (see {@link
3790 * GraphicsDevice#setFullScreenWindow(Window)})
3791 * </ul>
3792 * <p>
3793 * If the alpha component of the requested background color is less than
3794 * {@code 1.0f}, and any of the above conditions are not met, the background
3795 * color of this window will not change, the alpha component of the given
3796 * background color will not affect the mode of operation for this window,
3797 * and either the {@code UnsupportedOperationException} or {@code
3798 * IllegalComponentStateException} will be thrown.
3799 * <p>
3800 * When the window is per-pixel translucent, the drawing sub-system
3801 * respects the alpha value of each individual pixel. If a pixel gets
3802 * painted with the alpha color component equal to zero, it becomes
3803 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3804 * pixel is fully opaque. Interim values of the alpha color component make
3805 * the pixel semi-transparent. In this mode, the background of the window
3806 * gets painted with the alpha value of the given background color. If the
3807 * alpha value of the argument of this method is equal to {@code 0}, the
3808 * background is not painted at all.
3809 * <p>
3810 * The actual level of translucency of a given pixel also depends on window
3811 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3812 * this window (see {@link #setShape(Shape)}).
3813 * <p>
3814 * Note that painting a pixel with the alpha value of {@code 0} may or may
3815 * not disable the mouse event handling on this pixel. This is a
3816 * platform-dependent behavior. To make sure the mouse events do not get
3817 * dispatched to a particular pixel, the pixel must be excluded from the
3818 * shape of the window.
3819 * <p>
3820 * Enabling the per-pixel translucency mode may change the graphics
3821 * configuration of this window due to the native platform requirements.
3822 *
3823 * @param bgColor the color to become this window's background color.
3824 *
3825 * @throws IllegalComponentStateException if the alpha value of the given
3826 * background color is less than {@code 1.0f} and the window is decorated
3827 * @throws IllegalComponentStateException if the alpha value of the given
3828 * background color is less than {@code 1.0f} and the window is in
3829 * full-screen mode
3830 * @throws UnsupportedOperationException if the alpha value of the given
3831 * background color is less than {@code 1.0f} and {@link
3832 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3833 * PERPIXEL_TRANSLUCENT} translucency is not supported
3834 *
3835 * @see Window#getBackground
3836 * @see Window#isOpaque
3837 * @see Window#setOpacity(float)
3838 * @see Window#setShape(Shape)
3839 * @see Frame#isUndecorated
3840 * @see Dialog#isUndecorated
3841 * @see GraphicsDevice.WindowTranslucency
3842 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3843 * @see GraphicsConfiguration#isTranslucencyCapable()
3844 */
3845 @Override
3846 public void setBackground(Color bgColor) {
3847 Color oldBg = getBackground();
3848 super.setBackground(bgColor);
3849 if (oldBg != null && oldBg.equals(bgColor)) {
3850 return;
3851 }
3852 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3853 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3854 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3855 GraphicsConfiguration gc = getGraphicsConfiguration();
3856 GraphicsDevice gd = gc.getDevice();
3857 if (gc.getDevice().getFullScreenWindow() == this) {
3858 throw new IllegalComponentStateException(
3859 "Making full-screen window non opaque is not supported.");
3860 }
3861 if (!gc.isTranslucencyCapable()) {
3862 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3863 if (capableGC == null) {
3864 throw new UnsupportedOperationException(
3865 "PERPIXEL_TRANSLUCENT translucency is not supported");
3866 }
3867 setGraphicsConfiguration(capableGC);
3868 }
3869 setLayersOpaque(this, false);
3870 } else if ((oldAlpha < 255) && (alpha == 255)) {
3871 setLayersOpaque(this, true);
3872 }
3873 WindowPeer peer = (WindowPeer) this.peer;
3874 if (peer != null) {
3875 peer.setOpaque(alpha == 255);
3876 }
3877 }
3878
3879 /**
3880 * Indicates if the window is currently opaque.
3881 * <p>
3882 * The method returns {@code false} if the background color of the window
3883 * is not {@code null} and the alpha component of the color is less than
3884 * {@code 1.0f}. The method returns {@code true} otherwise.
3885 *
3886 * @return {@code true} if the window is opaque, {@code false} otherwise
3887 *
3888 * @see Window#getBackground
3889 * @see Window#setBackground(Color)
3890 * @since 1.7
3891 */
3892 @Override
3893 public boolean isOpaque() {
3894 Color bg = getBackground();
3895 return bg != null ? bg.getAlpha() == 255 : true;
3896 }
3897
3898 private void updateWindow() {
3899 synchronized (getTreeLock()) {
3900 WindowPeer peer = (WindowPeer) this.peer;
3901 if (peer != null) {
3902 peer.updateWindow();
3903 }
3904 }
3905 }
3906
3907 /**
3908 * {@inheritDoc}
3909 *
3910 * @since 1.7
3911 */
3912 @Override
3913 public void paint(Graphics g) {
3914 if (!isOpaque()) {
3915 Graphics gg = g.create();
3916 try {
3917 if (gg instanceof Graphics2D) {
3918 gg.setColor(getBackground());
3919 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3920 gg.fillRect(0, 0, getWidth(), getHeight());
3921 }
3922 } finally {
3923 gg.dispose();
3924 }
3925 }
3926 super.paint(g);
3927 }
3928
3929 private static void setLayersOpaque(Component component, boolean isOpaque) {
3930 // Shouldn't use instanceof to avoid loading Swing classes
3931 // if it's a pure AWT application.
3932 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3933 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3934 javax.swing.JRootPane root = rpc.getRootPane();
3935 javax.swing.JLayeredPane lp = root.getLayeredPane();
3936 Container c = root.getContentPane();
3937 javax.swing.JComponent content =
3938 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3939 lp.setOpaque(isOpaque);
3940 root.setOpaque(isOpaque);
3941 if (content != null) {
3942 content.setOpaque(isOpaque);
3943
3944 // Iterate down one level to see whether we have a JApplet
3945 // (which is also a RootPaneContainer) which requires processing
3946 int numChildren = content.getComponentCount();
3947 if (numChildren > 0) {
3948 Component child = content.getComponent(0);
3949 // It's OK to use instanceof here because we've
3950 // already loaded the RootPaneContainer class by now
3951 if (child instanceof javax.swing.RootPaneContainer) {
3952 setLayersOpaque(child, isOpaque);
3953 }
3954 }
3955 }
3956 }
3957 }
3958
3959
3960 // ************************** MIXING CODE *******************************
3961
3962 // A window has an owner, but it does NOT have a container
3963 @Override
3964 final Container getContainer() {
3965 return null;
3966 }
3967
3968 /**
3969 * Applies the shape to the component
3970 * @param shape Shape to be applied to the component
3971 */
3972 @Override
3973 final void applyCompoundShape(Region shape) {
3974 // The shape calculated by mixing code is not intended to be applied
3975 // to windows or frames
3976 }
3977
3978 @Override
3979 final void applyCurrentShape() {
3980 // The shape calculated by mixing code is not intended to be applied
3981 // to windows or frames
3982 }
3983
3984 @Override
3985 final void mixOnReshaping() {
3986 // The shape calculated by mixing code is not intended to be applied
3987 // to windows or frames
3988 }
3989
3990 @Override
3991 final Point getLocationOnWindow() {
3992 return new Point(0, 0);
3993 }
3994
3995 // ****************** END OF MIXING CODE ********************************
3996
3997 /**
3998 * Limit the given double value with the given range.
3999 */
4000 private static double limit(double value, double min, double max) {
4001 value = Math.max(value, min);
4002 value = Math.min(value, max);
4003 return value;
4004 }
4005
4006 /**
4007 * Calculate the position of the security warning.
4008 *
4009 * This method gets the window location/size as reported by the native
4010 * system since the locally cached values may represent outdated data.
4011 *
4012 * The method is used from the native code, or via AWTAccessor.
4013 *
4014 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4015 * supposed to become public/user-overridable.
4016 */
4017 private Point2D calculateSecurityWarningPosition(double x, double y,
4018 double w, double h)
4019 {
4020 // The desired location for the security warning
4021 double wx = x + w * RIGHT_ALIGNMENT + 2.0;
4022 double wy = y + h * TOP_ALIGNMENT + 0.0;
4023
4024 // First, make sure the warning is not too far from the window bounds
4025 wx = Window.limit(wx,
4026 x - securityWarningWidth - 2,
4027 x + w + 2);
4028 wy = Window.limit(wy,
4029 y - securityWarningHeight - 2,
4030 y + h + 2);
4031
4032 // Now make sure the warning window is visible on the screen
4033 GraphicsConfiguration graphicsConfig =
4034 getGraphicsConfiguration_NoClientCode();
4035 Rectangle screenBounds = graphicsConfig.getBounds();
4036 Insets screenInsets =
4037 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4038
4039 wx = Window.limit(wx,
4040 screenBounds.x + screenInsets.left,
4041 screenBounds.x + screenBounds.width - screenInsets.right
4042 - securityWarningWidth);
4043 wy = Window.limit(wy,
4044 screenBounds.y + screenInsets.top,
4045 screenBounds.y + screenBounds.height - screenInsets.bottom
4046 - securityWarningHeight);
4047
4048 return new Point2D.Double(wx, wy);
4049 }
4050
4051 static {
4052 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4053 public void updateWindow(Window window) {
4054 window.updateWindow();
4055 }
4056
4057 public void setSecurityWarningSize(Window window, int width, int height)
4058 {
4059 window.securityWarningWidth = width;
4060 window.securityWarningHeight = height;
4061 }
4062
4063 public Point2D calculateSecurityWarningPosition(Window window,
4064 double x, double y, double w, double h)
4065 {
4066 return window.calculateSecurityWarningPosition(x, y, w, h);
4067 }
4068
4069 public void setLWRequestStatus(Window changed, boolean status) {
4070 changed.syncLWRequests = status;
4071 }
4072
4073 public boolean isAutoRequestFocus(Window w) {
4074 return w.autoRequestFocus;
4075 }
4076
4077 public boolean isTrayIconWindow(Window w) {
4078 return w.isTrayIconWindow;
4079 }
4080
4081 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4082 w.isTrayIconWindow = isTrayIconWindow;
4083 }
4084
4085 public Window[] getOwnedWindows(Window w) {
4086 return w.getOwnedWindows_NoClientCode();
4087 }
4088 }); // WindowAccessor
4089 } // static
4090
4091 // a window doesn't need to be updated in the Z-order.
4092 @Override
4093 void updateZOrder() {}
4094
4095 } // class Window
4096
4097
4098 /**
4099 * This class is no longer used, but is maintained for Serialization
4100 * backward-compatibility.
4101 */
4102 class FocusManager implements java.io.Serializable {
4103 Container focusRoot;
4104 Component focusOwner;
4105
4106 /*
4107 * JDK 1.1 serialVersionUID
4108 */
4109 static final long serialVersionUID = 2491878825643557906L;
4110 }