1 /*
2 * Copyright (c) 1995, 2019, 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
100 * physical screen shows coords (0,0), other screen shows (-80,-100)."
101 * style="margin: 7px 10px;">
102 * <p>
103 * In such an environment, when calling {@code setLocation},
104 * you must pass a virtual coordinate to this method. Similarly,
105 * calling {@code getLocationOnScreen} on a {@code Window} returns
106 * virtual device coordinates. Call the {@code getBounds} method
107 * of a {@code GraphicsConfiguration} to find its origin in the virtual
108 * coordinate system.
109 * <p>
110 * The following code sets the location of a {@code Window}
111 * at (10, 10) relative to the origin of the physical screen
112 * of the corresponding {@code GraphicsConfiguration}. If the
113 * bounds of the {@code GraphicsConfiguration} is not taken
114 * into account, the {@code Window} location would be set
115 * at (10, 10) relative to the virtual-coordinate system and would appear
116 * on the primary physical screen, which might be different from the
117 * physical screen of the specified {@code GraphicsConfiguration}.
118 *
119 * <pre>
120 * Window w = new Window(Window owner, GraphicsConfiguration gc);
121 * Rectangle bounds = gc.getBounds();
122 * w.setLocation(10 + bounds.x, 10 + bounds.y);
123 * </pre>
124 *
125 * <p>
126 * Note: the location and size of top-level windows (including
127 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
128 * are under the control of the desktop's window management system.
129 * Calls to {@code setLocation}, {@code setSize}, and
130 * {@code setBounds} are requests (not directives) which are
131 * forwarded to the window management system. Every effort will be
132 * made to honor such requests. However, in some cases the window
133 * management system may ignore such requests, or modify the requested
134 * geometry in order to place and size the {@code Window} in a way
135 * that more closely matches the desktop settings.
136 * <p>
137 * Due to the asynchronous nature of native event handling, the results
138 * returned by {@code getBounds}, {@code getLocation},
139 * {@code getLocationOnScreen}, and {@code getSize} might not
140 * reflect the actual geometry of the Window on screen until the last
141 * request has been processed. During the processing of subsequent
142 * requests these values might change accordingly while the window
143 * management system fulfills the requests.
144 * <p>
145 * An application may set the size and location of an invisible
146 * {@code Window} arbitrarily, but the window management system may
147 * subsequently change its size and/or location when the
148 * {@code Window} is made visible. One or more {@code ComponentEvent}s
149 * will be generated to indicate the new geometry.
150 * <p>
151 * Windows are capable of generating the following WindowEvents:
152 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
153 *
154 * @author Sami Shaio
155 * @author Arthur van Hoff
156 * @see WindowEvent
157 * @see #addWindowListener
158 * @see java.awt.BorderLayout
159 * @since 1.0
160 */
161 public class Window extends Container implements Accessible {
162
163 /**
164 * Enumeration of available <i>window types</i>.
165 *
166 * A window type defines the generic visual appearance and behavior of a
167 * top-level window. For example, the type may affect the kind of
168 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
169 * <p>
170 * Some platforms may not fully support a certain window type. Depending on
171 * the level of support, some properties of the window type may be
172 * disobeyed.
173 *
174 * @see #getType
175 * @see #setType
176 * @since 1.7
177 */
178 public static enum Type {
179 /**
180 * Represents a <i>normal</i> window.
181 *
182 * This is the default type for objects of the {@code Window} class or
183 * its descendants. Use this type for regular top-level windows.
184 */
185 NORMAL,
186
187 /**
188 * Represents a <i>utility</i> window.
189 *
190 * A utility window is usually a small window such as a toolbar or a
191 * palette. The native system may render the window with smaller
192 * title-bar if the window is either a {@code Frame} or a {@code
193 * Dialog} object, and if it has its decorations enabled.
194 */
195 UTILITY,
196
197 /**
198 * Represents a <i>popup</i> window.
199 *
200 * A popup window is a temporary window such as a drop-down menu or a
201 * tooltip. On some platforms, windows of that type may be forcibly
202 * made undecorated even if they are instances of the {@code Frame} or
203 * {@code Dialog} class, and have decorations enabled.
204 */
205 POPUP
206 }
207
208 /**
209 * This represents the warning message that is
210 * to be displayed in a non secure window. ie :
211 * a window that has a security manager installed that denies
212 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
213 * This message can be displayed anywhere in the window.
214 *
215 * @serial
216 * @see #getWarningString
217 */
218 String warningString;
219
220 /**
221 * {@code icons} is the graphical way we can
222 * represent the frames and dialogs.
223 * {@code Window} can't display icon but it's
224 * being inherited by owned {@code Dialog}s.
225 *
226 * @serial
227 * @see #getIconImages
228 * @see #setIconImages
229 */
230 transient java.util.List<Image> icons;
231
232 /**
233 * Holds the reference to the component which last had focus in this window
234 * before it lost focus.
235 */
236 private transient Component temporaryLostComponent;
237
238 static boolean systemSyncLWRequests = false;
239 boolean syncLWRequests = false;
240 transient boolean beforeFirstShow = true;
241 private transient boolean disposing = false;
242 transient WindowDisposerRecord disposerRecord = null;
243
244 static final int OPENED = 0x01;
245
246 /**
247 * An Integer value representing the Window State.
248 *
249 * @serial
250 * @since 1.2
251 * @see #show
252 */
253 int state;
254
255 /**
256 * A boolean value representing Window always-on-top state
257 * @since 1.5
258 * @serial
259 * @see #setAlwaysOnTop
260 * @see #isAlwaysOnTop
261 */
262 private boolean alwaysOnTop;
263
264 /**
265 * Contains all the windows that have a peer object associated,
266 * i. e. between addNotify() and removeNotify() calls. The list
267 * of all Window instances can be obtained from AppContext object.
268 *
269 * @since 1.6
270 */
271 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
272
273 /**
274 * A vector containing all the windows this
275 * window currently owns.
276 * @since 1.2
277 * @see #getOwnedWindows
278 */
279 transient Vector<WeakReference<Window>> ownedWindowList =
280 new Vector<WeakReference<Window>>();
281
282 /*
283 * We insert a weak reference into the Vector of all Windows in AppContext
284 * instead of 'this' so that garbage collection can still take place
285 * correctly.
286 */
287 private transient WeakReference<Window> weakThis;
288
289 transient boolean showWithParent;
290
291 /**
292 * Contains the modal dialog that blocks this window, or null
293 * if the window is unblocked.
294 *
295 * @since 1.6
296 */
297 transient Dialog modalBlocker;
298
299 /**
300 * @serial
301 *
302 * @see java.awt.Dialog.ModalExclusionType
303 * @see #getModalExclusionType
304 * @see #setModalExclusionType
305 *
306 * @since 1.6
307 */
308 Dialog.ModalExclusionType modalExclusionType;
309
310 transient WindowListener windowListener;
311 transient WindowStateListener windowStateListener;
312 transient WindowFocusListener windowFocusListener;
313
314 transient InputContext inputContext;
315 private transient Object inputContextLock = new Object();
316
317 /**
318 * Unused. Maintained for serialization backward-compatibility.
319 *
320 * @serial
321 * @since 1.2
322 */
323 private FocusManager focusMgr;
324
325 /**
326 * Indicates whether this Window can become the focused Window.
327 *
328 * @serial
329 * @see #getFocusableWindowState
330 * @see #setFocusableWindowState
331 * @since 1.4
332 */
333 private boolean focusableWindowState = true;
334
335 /**
336 * Indicates whether this window should receive focus on
337 * subsequently being shown (with a call to {@code setVisible(true)}), or
338 * being moved to the front (with a call to {@code toFront()}).
339 *
340 * @serial
341 * @see #setAutoRequestFocus
342 * @see #isAutoRequestFocus
343 * @since 1.7
344 */
345 private volatile boolean autoRequestFocus = true;
346
347 /*
348 * Indicates that this window is being shown. This flag is set to true at
349 * the beginning of show() and to false at the end of show().
350 *
351 * @see #show()
352 * @see Dialog#shouldBlock
353 */
354 transient boolean isInShow = false;
355
356 /**
357 * The opacity level of the window
358 *
359 * @serial
360 * @see #setOpacity(float)
361 * @see #getOpacity()
362 * @since 1.7
363 */
364 private volatile float opacity = 1.0f;
365
366 /**
367 * The shape assigned to this window. This field is set to {@code null} if
368 * no shape is set (rectangular window).
369 *
370 * @serial
371 * @see #getShape()
372 * @see #setShape(Shape)
373 * @since 1.7
374 */
375 private Shape shape = null;
376
377 private static final String base = "win";
378 private static int nameCounter = 0;
379
380 /*
381 * JDK 1.1 serialVersionUID
382 */
383 private static final long serialVersionUID = 4497834738069338734L;
384
385 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
386
387 private static final boolean locationByPlatformProp;
388
389 transient boolean isTrayIconWindow = false;
390
391 /**
392 * These fields are initialized in the native peer code
393 * or via AWTAccessor's WindowAccessor.
394 */
395 private transient volatile int securityWarningWidth = 0;
396 private transient volatile int securityWarningHeight = 0;
397
398 static {
399 /* ensure that the necessary native libraries are loaded */
400 Toolkit.loadLibraries();
401 if (!GraphicsEnvironment.isHeadless()) {
402 initIDs();
403 }
404
405 String s = java.security.AccessController.doPrivileged(
406 new GetPropertyAction("java.awt.syncLWRequests"));
407 systemSyncLWRequests = (s != null && s.equals("true"));
408 s = java.security.AccessController.doPrivileged(
409 new GetPropertyAction("java.awt.Window.locationByPlatform"));
410 locationByPlatformProp = (s != null && s.equals("true"));
411 }
412
413 /**
414 * Initialize JNI field and method IDs for fields that may be
415 accessed from C.
416 */
417 private static native void initIDs();
418
419 /**
420 * Constructs a new, initially invisible window in default size with the
421 * specified {@code GraphicsConfiguration}.
422 * <p>
423 * If there is a security manager, then it is invoked to check
424 * {@code AWTPermission("showWindowWithoutWarningBanner")}
425 * to determine whether or not the window must be displayed with
426 * a warning banner.
427 *
428 * @param gc the {@code GraphicsConfiguration} of the target screen
429 * device. If {@code gc} is {@code null}, the system default
430 * {@code GraphicsConfiguration} is assumed
431 * @exception IllegalArgumentException if {@code gc}
432 * is not from a screen device
433 * @exception HeadlessException when
434 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
435 *
436 * @see java.awt.GraphicsEnvironment#isHeadless
437 */
438 Window(GraphicsConfiguration gc) {
439 init(gc);
440 }
441
442 transient Object anchor = new Object();
443 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
444 WeakReference<Window> owner;
445 final WeakReference<Window> weakThis;
446 final WeakReference<AppContext> context;
447
448 WindowDisposerRecord(AppContext context, Window victim) {
449 weakThis = victim.weakThis;
450 this.context = new WeakReference<AppContext>(context);
451 }
452
453 public void updateOwner() {
454 Window victim = weakThis.get();
455 owner = (victim == null)
456 ? null
457 : new WeakReference<Window>(victim.getOwner());
458 }
459
460 public void dispose() {
461 if (owner != null) {
462 Window parent = owner.get();
463 if (parent != null) {
464 parent.removeOwnedWindow(weakThis);
465 }
466 }
467 AppContext ac = context.get();
468 if (null != ac) {
469 Window.removeFromWindowList(ac, weakThis);
470 }
471 }
472 }
473
474 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
475 GraphicsEnvironment.checkHeadless();
476
477 if (gc == null) {
478 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
479 getDefaultScreenDevice().getDefaultConfiguration();
480 }
481 setGraphicsConfiguration(gc);
482
483 return gc;
484 }
485
486 private void init(GraphicsConfiguration gc) {
487 GraphicsEnvironment.checkHeadless();
488
489 syncLWRequests = systemSyncLWRequests;
490
491 weakThis = new WeakReference<Window>(this);
492 addToWindowList();
493
494 setWarningString();
495 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
496 this.visible = false;
497
498 gc = initGC(gc);
499
500 if (gc.getDevice().getType() !=
501 GraphicsDevice.TYPE_RASTER_SCREEN) {
502 throw new IllegalArgumentException("not a screen device");
503 }
504 setLayout(new BorderLayout());
505
506 /* offset the initial location with the original of the screen */
507 /* and any insets */
508 Rectangle screenBounds = gc.getBounds();
509 Insets screenInsets = getToolkit().getScreenInsets(gc);
510 int x = getX() + screenBounds.x + screenInsets.left;
511 int y = getY() + screenBounds.y + screenInsets.top;
512 if (x != this.x || y != this.y) {
513 setLocation(x, y);
514 /* reset after setLocation */
515 setLocationByPlatform(locationByPlatformProp);
516 }
517
518 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
519 disposerRecord = new WindowDisposerRecord(appContext, this);
520 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
521
522 SunToolkit.checkAndSetPolicy(this);
523 }
524
525 /**
526 * Constructs a new, initially invisible window in the default size.
527 * <p>
528 * If there is a security manager set, it is invoked to check
529 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
530 * If that check fails with a {@code SecurityException} then a warning
531 * banner is created.
532 *
533 * @exception HeadlessException when
534 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
535 *
536 * @see java.awt.GraphicsEnvironment#isHeadless
537 */
538 Window() throws HeadlessException {
539 GraphicsEnvironment.checkHeadless();
540 init((GraphicsConfiguration)null);
541 }
542
543 /**
544 * Constructs a new, initially invisible window with the specified
545 * {@code Frame} as its owner. The window will not be focusable
546 * unless its owner is showing on the screen.
547 * <p>
548 * If there is a security manager set, it is invoked to check
549 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
550 * If that check fails with a {@code SecurityException} then a warning
551 * banner is created.
552 *
553 * @param owner the {@code Frame} to act as owner or {@code null}
554 * if this window has no owner
555 * @exception IllegalArgumentException if the {@code owner}'s
556 * {@code GraphicsConfiguration} is not from a screen device
557 * @exception HeadlessException when
558 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
559 *
560 * @see java.awt.GraphicsEnvironment#isHeadless
561 * @see #isShowing
562 */
563 public Window(Frame owner) {
564 this(owner == null ? (GraphicsConfiguration)null :
565 owner.getGraphicsConfiguration());
566 ownedInit(owner);
567 }
568
569 /**
570 * Constructs a new, initially invisible window with the specified
571 * {@code Window} as its owner. This window will not be focusable
572 * unless its nearest owning {@code Frame} or {@code Dialog}
573 * is showing on the screen.
574 * <p>
575 * If there is a security manager set, it is invoked to check
576 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
577 * If that check fails with a {@code SecurityException} then a
578 * warning banner is created.
579 *
580 * @param owner the {@code Window} to act as owner or
581 * {@code null} if this window has no owner
582 * @exception IllegalArgumentException if the {@code owner}'s
583 * {@code GraphicsConfiguration} is not from a screen device
584 * @exception HeadlessException when
585 * {@code GraphicsEnvironment.isHeadless()} returns
586 * {@code true}
587 *
588 * @see java.awt.GraphicsEnvironment#isHeadless
589 * @see #isShowing
590 *
591 * @since 1.2
592 */
593 public Window(Window owner) {
594 this(owner == null ? (GraphicsConfiguration)null :
595 owner.getGraphicsConfiguration());
596 ownedInit(owner);
597 }
598
599 /**
600 * Constructs a new, initially invisible window with the specified owner
601 * {@code Window} and a {@code GraphicsConfiguration}
602 * of a screen device. The Window will not be focusable unless
603 * its nearest owning {@code Frame} or {@code Dialog}
604 * is showing on the screen.
605 * <p>
606 * If there is a security manager set, it is invoked to check
607 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
608 * check fails with a {@code SecurityException} then a warning banner
609 * is created.
610 *
611 * @param owner the window to act as owner or {@code null}
612 * if this window has no owner
613 * @param gc the {@code GraphicsConfiguration} of the target
614 * screen device; if {@code gc} is {@code null},
615 * the system default {@code GraphicsConfiguration} is assumed
616 * @exception IllegalArgumentException if {@code gc}
617 * is not from a screen device
618 * @exception HeadlessException when
619 * {@code GraphicsEnvironment.isHeadless()} returns
620 * {@code true}
621 *
622 * @see java.awt.GraphicsEnvironment#isHeadless
623 * @see GraphicsConfiguration#getBounds
624 * @see #isShowing
625 * @since 1.3
626 */
627 public Window(Window owner, GraphicsConfiguration gc) {
628 this(gc);
629 ownedInit(owner);
630 }
631
632 private void ownedInit(Window owner) {
633 this.parent = owner;
634 if (owner != null) {
635 owner.addOwnedWindow(weakThis);
636 if (owner.isAlwaysOnTop()) {
637 try {
638 setAlwaysOnTop(true);
639 } catch (SecurityException ignore) {
640 }
641 }
642 }
643
644 // WindowDisposerRecord requires a proper value of parent field.
645 disposerRecord.updateOwner();
646 }
647
648 /**
649 * Construct a name for this component. Called by getName() when the
650 * name is null.
651 */
652 String constructComponentName() {
653 synchronized (Window.class) {
654 return base + nameCounter++;
655 }
656 }
657
658 /**
659 * Returns the sequence of images to be displayed as the icon for this window.
660 * <p>
661 * This method returns a copy of the internally stored list, so all operations
662 * on the returned object will not affect the window's behavior.
663 *
664 * @return the copy of icon images' list for this window, or
665 * empty list if this window doesn't have icon images.
666 * @see #setIconImages
667 * @see #setIconImage(Image)
668 * @since 1.6
669 */
670 public java.util.List<Image> getIconImages() {
671 java.util.List<Image> icons = this.icons;
672 if (icons == null || icons.size() == 0) {
673 return new ArrayList<Image>();
674 }
675 return new ArrayList<Image>(icons);
676 }
677
678 /**
679 * Sets the sequence of images to be displayed as the icon
680 * for this window. Subsequent calls to {@code getIconImages} will
681 * always return a copy of the {@code icons} list.
682 * <p>
683 * Depending on the platform capabilities one or several images
684 * of different dimensions will be used as the window's icon.
685 * <p>
686 * The {@code icons} list can contain {@code MultiResolutionImage} images also.
687 * Suitable image depending on screen resolution is extracted from
688 * base {@code MultiResolutionImage} image and added to the icons list
689 * while base resolution image is removed from list.
690 * The {@code icons} list is scanned for the images of most
691 * appropriate dimensions from the beginning. If the list contains
692 * several images of the same size, the first will be used.
693 * <p>
694 * Ownerless windows with no icon specified use platform-default icon.
695 * The icon of an owned window may be inherited from the owner
696 * unless explicitly overridden.
697 * Setting the icon to {@code null} or empty list restores
698 * the default behavior.
699 * <p>
700 * Note : Native windowing systems may use different images of differing
701 * dimensions to represent a window, depending on the context (e.g.
702 * window decoration, window list, taskbar, etc.). They could also use
703 * just a single image for all contexts or no image at all.
704 *
705 * @param icons the list of icon images to be displayed.
706 * @see #getIconImages()
707 * @see #setIconImage(Image)
708 * @since 1.6
709 */
710 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
711 this.icons = (icons == null) ? new ArrayList<Image>() :
712 new ArrayList<Image>(icons);
713 WindowPeer peer = (WindowPeer)this.peer;
714 if (peer != null) {
715 peer.updateIconImages();
716 }
717 // Always send a property change event
718 firePropertyChange("iconImage", null, null);
719 }
720
721 /**
722 * Sets the image to be displayed as the icon for this window.
723 * <p>
724 * This method can be used instead of {@link #setIconImages setIconImages()}
725 * to specify a single image as a window's icon.
726 * <p>
727 * The following statement:
728 * <pre>
729 * setIconImage(image);
730 * </pre>
731 * is equivalent to:
732 * <pre>
733 * ArrayList<Image> imageList = new ArrayList<Image>();
734 * imageList.add(image);
735 * setIconImages(imageList);
736 * </pre>
737 * <p>
738 * Note : Native windowing systems may use different images of differing
739 * dimensions to represent a window, depending on the context (e.g.
740 * window decoration, window list, taskbar, etc.). They could also use
741 * just a single image for all contexts or no image at all.
742 *
743 * @param image the icon image to be displayed.
744 * @see #setIconImages
745 * @see #getIconImages()
746 * @since 1.6
747 */
748 public void setIconImage(Image image) {
749 ArrayList<Image> imageList = new ArrayList<Image>();
750 if (image != null) {
751 imageList.add(image);
752 }
753 setIconImages(imageList);
754 }
755
756 /**
757 * Makes this Window displayable by creating the connection to its
758 * native screen resource.
759 * This method is called internally by the toolkit and should
760 * not be called directly by programs.
761 * @see Component#isDisplayable
762 * @see Container#removeNotify
763 * @since 1.0
764 */
765 public void addNotify() {
766 synchronized (getTreeLock()) {
767 Container parent = this.parent;
768 if (parent != null && parent.peer == null) {
769 parent.addNotify();
770 }
771 if (peer == null) {
772 peer = getComponentFactory().createWindow(this);
773 }
774 synchronized (allWindows) {
775 allWindows.add(this);
776 }
777 super.addNotify();
778 }
779 }
780
781 /**
782 * {@inheritDoc}
783 */
784 public void removeNotify() {
785 synchronized (getTreeLock()) {
786 synchronized (allWindows) {
787 allWindows.remove(this);
788 }
789 super.removeNotify();
790 }
791 }
792
793 /**
794 * Causes this Window to be sized to fit the preferred size
795 * and layouts of its subcomponents. The resulting width and
796 * height of the window are automatically enlarged if either
797 * of dimensions is less than the minimum size as specified
798 * by the previous call to the {@code setMinimumSize} method.
799 * <p>
800 * If the window and/or its owner are not displayable yet,
801 * both of them are made displayable before calculating
802 * the preferred size. The Window is validated after its
803 * size is being calculated.
804 *
805 * @see Component#isDisplayable
806 * @see #setMinimumSize
807 */
808 @SuppressWarnings("deprecation")
809 public void pack() {
810 Container parent = this.parent;
811 if (parent != null && parent.peer == null) {
812 parent.addNotify();
813 }
814 if (peer == null) {
815 addNotify();
816 }
817 Dimension newSize = getPreferredSize();
818 if (peer != null) {
819 setClientSize(newSize.width, newSize.height);
820 }
821
822 if(beforeFirstShow) {
823 isPacked = true;
824 }
825
826 validateUnconditionally();
827 }
828
829 /**
830 * Sets the minimum size of this window to a constant
831 * value. Subsequent calls to {@code getMinimumSize}
832 * will always return this value. If current window's
833 * size is less than {@code minimumSize} the size of the
834 * window is automatically enlarged to honor the minimum size.
835 * <p>
836 * If the {@code setSize} or {@code setBounds} methods
837 * are called afterwards with a width or height less than
838 * that was specified by the {@code setMinimumSize} method
839 * the window is automatically enlarged to meet
840 * the {@code minimumSize} value. The {@code minimumSize}
841 * value also affects the behaviour of the {@code pack} method.
842 * <p>
843 * The default behavior is restored by setting the minimum size
844 * parameter to the {@code null} value.
845 * <p>
846 * Resizing operation may be restricted if the user tries
847 * to resize window below the {@code minimumSize} value.
848 * This behaviour is platform-dependent.
849 *
850 * @param minimumSize the new minimum size of this window
851 * @see Component#setMinimumSize
852 * @see #getMinimumSize
853 * @see #isMinimumSizeSet
854 * @see #setSize(Dimension)
855 * @see #pack
856 * @since 1.6
857 */
858 public void setMinimumSize(Dimension minimumSize) {
859 synchronized (getTreeLock()) {
860 super.setMinimumSize(minimumSize);
861 Dimension size = getSize();
862 if (isMinimumSizeSet()) {
863 if (size.width < minimumSize.width || size.height < minimumSize.height) {
864 int nw = Math.max(width, minimumSize.width);
865 int nh = Math.max(height, minimumSize.height);
866 setSize(nw, nh);
867 }
868 }
869 if (peer != null) {
870 ((WindowPeer)peer).updateMinimumSize();
871 }
872 }
873 }
874
875 /**
876 * {@inheritDoc}
877 * <p>
878 * The {@code d.width} and {@code d.height} values
879 * are automatically enlarged if either is less than
880 * the minimum size as specified by previous call to
881 * {@code setMinimumSize}.
882 * <p>
883 * The method changes the geometry-related data. Therefore,
884 * the native windowing system may ignore such requests, or it may modify
885 * the requested data, so that the {@code Window} object is placed and sized
886 * in a way that corresponds closely to the desktop settings.
887 *
888 * @see #getSize
889 * @see #setBounds
890 * @see #setMinimumSize
891 * @since 1.6
892 */
893 public void setSize(Dimension d) {
894 super.setSize(d);
895 }
896
897 /**
898 * {@inheritDoc}
899 * <p>
900 * The {@code width} and {@code height} values
901 * are automatically enlarged if either is less than
902 * the minimum size as specified by previous call to
903 * {@code setMinimumSize}.
904 * <p>
905 * The method changes the geometry-related data. Therefore,
906 * the native windowing system may ignore such requests, or it may modify
907 * the requested data, so that the {@code Window} object is placed and sized
908 * in a way that corresponds closely to the desktop settings.
909 *
910 * @see #getSize
911 * @see #setBounds
912 * @see #setMinimumSize
913 * @since 1.6
914 */
915 public void setSize(int width, int height) {
916 super.setSize(width, height);
917 }
918
919 /**
920 * {@inheritDoc}
921 * <p>
922 * The method changes the geometry-related data. Therefore,
923 * the native windowing system may ignore such requests, or it may modify
924 * the requested data, so that the {@code Window} object is placed and sized
925 * in a way that corresponds closely to the desktop settings.
926 */
927 @Override
928 public void setLocation(int x, int y) {
929 super.setLocation(x, y);
930 }
931
932 /**
933 * {@inheritDoc}
934 * <p>
935 * The method changes the geometry-related data. Therefore,
936 * the native windowing system may ignore such requests, or it may modify
937 * the requested data, so that the {@code Window} object is placed and sized
938 * in a way that corresponds closely to the desktop settings.
939 */
940 @Override
941 public void setLocation(Point p) {
942 super.setLocation(p);
943 }
944
945 /**
946 * @deprecated As of JDK version 1.1,
947 * replaced by {@code setBounds(int, int, int, int)}.
948 */
949 @Deprecated
950 public void reshape(int x, int y, int width, int height) {
951 if (isMinimumSizeSet()) {
952 Dimension minSize = getMinimumSize();
953 if (width < minSize.width) {
954 width = minSize.width;
955 }
956 if (height < minSize.height) {
957 height = minSize.height;
958 }
959 }
960 super.reshape(x, y, width, height);
961 }
962
963 void setClientSize(int w, int h) {
964 synchronized (getTreeLock()) {
965 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
966 setBounds(x, y, w, h);
967 }
968 }
969
970 private static final AtomicBoolean
971 beforeFirstWindowShown = new AtomicBoolean(true);
972
973 final void closeSplashScreen() {
974 if (isTrayIconWindow) {
975 return;
976 }
977 if (beforeFirstWindowShown.getAndSet(false)) {
978 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
979 // the object if it hasn't been requested by user code explicitly
980 SunToolkit.closeSplashScreen();
981 SplashScreen.markClosed();
982 }
983 }
984
985 /**
986 * Shows or hides this {@code Window} depending on the value of parameter
987 * {@code b}.
988 * <p>
989 * If the method shows the window then the window is also made
990 * focused under the following conditions:
991 * <ul>
992 * <li> The {@code Window} meets the requirements outlined in the
993 * {@link #isFocusableWindow} method.
994 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
995 * <li> Native windowing system allows the {@code Window} to get focused.
996 * </ul>
997 * There is an exception for the second condition (the value of the
998 * {@code autoRequestFocus} property). The property is not taken into account if the
999 * window is a modal dialog, which blocks the currently focused window.
1000 * <p>
1001 * Developers must never assume that the window is the focused or active window
1002 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
1003 * @param b if {@code true}, makes the {@code Window} visible,
1004 * otherwise hides the {@code Window}.
1005 * If the {@code Window} and/or its owner
1006 * are not yet displayable, both are made displayable. The
1007 * {@code Window} will be validated prior to being made visible.
1008 * If the {@code Window} is already visible, this will bring the
1009 * {@code Window} to the front.<p>
1010 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1011 * of its owned children.
1012 * The {@code Window} and its subcomponents can be made visible again
1013 * with a call to {@code #setVisible(true)}.
1014 * @see java.awt.Component#isDisplayable
1015 * @see java.awt.Component#setVisible
1016 * @see java.awt.Window#toFront
1017 * @see java.awt.Window#dispose
1018 * @see java.awt.Window#setAutoRequestFocus
1019 * @see java.awt.Window#isFocusableWindow
1020 */
1021 public void setVisible(boolean b) {
1022 super.setVisible(b);
1023 }
1024
1025 /**
1026 * Makes the Window visible. If the Window and/or its owner
1027 * are not yet displayable, both are made displayable. The
1028 * Window will be validated prior to being made visible.
1029 * If the Window is already visible, this will bring the Window
1030 * to the front.
1031 * @see Component#isDisplayable
1032 * @see #toFront
1033 * @deprecated As of JDK version 1.5, replaced by
1034 * {@link #setVisible(boolean)}.
1035 */
1036 @Deprecated
1037 public void show() {
1038 if (peer == null) {
1039 addNotify();
1040 }
1041 validateUnconditionally();
1042
1043 isInShow = true;
1044 if (visible) {
1045 toFront();
1046 } else {
1047 beforeFirstShow = false;
1048 closeSplashScreen();
1049 Dialog.checkShouldBeBlocked(this);
1050 super.show();
1051 locationByPlatform = false;
1052 for (int i = 0; i < ownedWindowList.size(); i++) {
1053 Window child = ownedWindowList.elementAt(i).get();
1054 if ((child != null) && child.showWithParent) {
1055 child.show();
1056 child.showWithParent = false;
1057 } // endif
1058 } // endfor
1059 if (!isModalBlocked()) {
1060 updateChildrenBlocking();
1061 } else {
1062 // fix for 6532736: after this window is shown, its blocker
1063 // should be raised to front
1064 modalBlocker.toFront_NoClientCode();
1065 }
1066 if (this instanceof Frame || this instanceof Dialog) {
1067 updateChildFocusableWindowState(this);
1068 }
1069 }
1070 isInShow = false;
1071
1072 // If first time shown, generate WindowOpened event
1073 if ((state & OPENED) == 0) {
1074 postWindowEvent(WindowEvent.WINDOW_OPENED);
1075 state |= OPENED;
1076 }
1077 }
1078
1079 static void updateChildFocusableWindowState(Window w) {
1080 if (w.peer != null && w.isShowing()) {
1081 ((WindowPeer)w.peer).updateFocusableWindowState();
1082 }
1083 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1084 Window child = w.ownedWindowList.elementAt(i).get();
1085 if (child != null) {
1086 updateChildFocusableWindowState(child);
1087 }
1088 }
1089 }
1090
1091 synchronized void postWindowEvent(int id) {
1092 if (windowListener != null
1093 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1094 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1095 WindowEvent e = new WindowEvent(this, id);
1096 Toolkit.getEventQueue().postEvent(e);
1097 }
1098 }
1099
1100 /**
1101 * Hide this Window, its subcomponents, and all of its owned children.
1102 * The Window and its subcomponents can be made visible again
1103 * with a call to {@code show}.
1104 * @see #show
1105 * @see #dispose
1106 * @deprecated As of JDK version 1.5, replaced by
1107 * {@link #setVisible(boolean)}.
1108 */
1109 @Deprecated
1110 public void hide() {
1111 synchronized(ownedWindowList) {
1112 for (int i = 0; i < ownedWindowList.size(); i++) {
1113 Window child = ownedWindowList.elementAt(i).get();
1114 if ((child != null) && child.visible) {
1115 child.hide();
1116 child.showWithParent = true;
1117 }
1118 }
1119 }
1120 if (isModalBlocked()) {
1121 modalBlocker.unblockWindow(this);
1122 }
1123 super.hide();
1124 locationByPlatform = false;
1125 }
1126
1127 final void clearMostRecentFocusOwnerOnHide() {
1128 /* do nothing */
1129 }
1130
1131 /**
1132 * Releases all of the native screen resources used by this
1133 * {@code Window}, its subcomponents, and all of its owned
1134 * children. That is, the resources for these {@code Component}s
1135 * will be destroyed, any memory they consume will be returned to the
1136 * OS, and they will be marked as undisplayable.
1137 * <p>
1138 * The {@code Window} and its subcomponents can be made displayable
1139 * again by rebuilding the native resources with a subsequent call to
1140 * {@code pack} or {@code show}. The states of the recreated
1141 * {@code Window} and its subcomponents will be identical to the
1142 * states of these objects at the point where the {@code Window}
1143 * was disposed (not accounting for additional modifications between
1144 * those actions).
1145 * <p>
1146 * <b>Note</b>: When the last displayable window
1147 * within the Java virtual machine (VM) is disposed of, the VM may
1148 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1149 * AWT Threading Issues</a> for more information.
1150 * @see Component#isDisplayable
1151 * @see #pack
1152 * @see #show
1153 */
1154 public void dispose() {
1155 doDispose();
1156 }
1157
1158 /*
1159 * Fix for 4872170.
1160 * If dispose() is called on parent then its children have to be disposed as well
1161 * as reported in javadoc. So we need to implement this functionality even if a
1162 * child overrides dispose() in a wrong way without calling super.dispose().
1163 */
1164 void disposeImpl() {
1165 dispose();
1166 if (peer != null) {
1167 doDispose();
1168 }
1169 }
1170
1171 void doDispose() {
1172 class DisposeAction implements Runnable {
1173 public void run() {
1174 disposing = true;
1175 try {
1176 // Check if this window is the fullscreen window for the
1177 // device. Exit the fullscreen mode prior to disposing
1178 // of the window if that's the case.
1179 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1180 if (gd.getFullScreenWindow() == Window.this) {
1181 gd.setFullScreenWindow(null);
1182 }
1183
1184 Object[] ownedWindowArray;
1185 synchronized(ownedWindowList) {
1186 ownedWindowArray = new Object[ownedWindowList.size()];
1187 ownedWindowList.copyInto(ownedWindowArray);
1188 }
1189 for (int i = 0; i < ownedWindowArray.length; i++) {
1190 Window child = (Window) (((WeakReference)
1191 (ownedWindowArray[i])).get());
1192 if (child != null) {
1193 child.disposeImpl();
1194 }
1195 }
1196 hide();
1197 beforeFirstShow = true;
1198 removeNotify();
1199 synchronized (inputContextLock) {
1200 if (inputContext != null) {
1201 inputContext.dispose();
1202 inputContext = null;
1203 }
1204 }
1205 clearCurrentFocusCycleRootOnHide();
1206 } finally {
1207 disposing = false;
1208 }
1209 }
1210 }
1211 boolean fireWindowClosedEvent = isDisplayable();
1212 DisposeAction action = new DisposeAction();
1213 if (EventQueue.isDispatchThread()) {
1214 action.run();
1215 }
1216 else {
1217 try {
1218 EventQueue.invokeAndWait(this, action);
1219 }
1220 catch (InterruptedException e) {
1221 System.err.println("Disposal was interrupted:");
1222 e.printStackTrace();
1223 }
1224 catch (InvocationTargetException e) {
1225 System.err.println("Exception during disposal:");
1226 e.printStackTrace();
1227 }
1228 }
1229 // Execute outside the Runnable because postWindowEvent is
1230 // synchronized on (this). We don't need to synchronize the call
1231 // on the EventQueue anyways.
1232 if (fireWindowClosedEvent) {
1233 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1234 }
1235 }
1236
1237 /*
1238 * Should only be called while holding the tree lock.
1239 * It's overridden here because parent == owner in Window,
1240 * and we shouldn't adjust counter on owner
1241 */
1242 void adjustListeningChildrenOnParent(long mask, int num) {
1243 }
1244
1245 // Should only be called while holding tree lock
1246 void adjustDescendantsOnParent(int num) {
1247 // do nothing since parent == owner and we shouldn't
1248 // adjust counter on owner
1249 }
1250
1251 /**
1252 * If this Window is visible, brings this Window to the front and may make
1253 * it the focused Window.
1254 * <p>
1255 * Places this Window at the top of the stacking order and shows it in
1256 * front of any other Windows in this VM. No action will take place if this
1257 * Window is not visible. Some platforms do not allow Windows which own
1258 * other Windows to appear on top of those owned Windows. Some platforms
1259 * may not permit this VM to place its Windows above windows of native
1260 * applications, or Windows of other VMs. This permission may depend on
1261 * whether a Window in this VM is already focused. Every attempt will be
1262 * made to move this Window as high as possible in the stacking order;
1263 * however, developers should not assume that this method will move this
1264 * Window above all other windows in every situation.
1265 * <p>
1266 * Developers must never assume that this Window is the focused or active
1267 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1268 * event. On platforms where the top-most window is the focused window, this
1269 * method will <b>probably</b> focus this Window (if it is not already focused)
1270 * under the following conditions:
1271 * <ul>
1272 * <li> The window meets the requirements outlined in the
1273 * {@link #isFocusableWindow} method.
1274 * <li> The window's property {@code autoRequestFocus} is of the
1275 * {@code true} value.
1276 * <li> Native windowing system allows the window to get focused.
1277 * </ul>
1278 * On platforms where the stacking order does not typically affect the focused
1279 * window, this method will <b>probably</b> leave the focused and active
1280 * Windows unchanged.
1281 * <p>
1282 * If this method causes this Window to be focused, and this Window is a
1283 * Frame or a Dialog, it will also become activated. If this Window is
1284 * focused, but it is not a Frame or a Dialog, then the first Frame or
1285 * Dialog that is an owner of this Window will be activated.
1286 * <p>
1287 * If this window is blocked by modal dialog, then the blocking dialog
1288 * is brought to the front and remains above the blocked window.
1289 *
1290 * @see #toBack
1291 * @see #setAutoRequestFocus
1292 * @see #isFocusableWindow
1293 */
1294 public void toFront() {
1295 toFront_NoClientCode();
1296 }
1297
1298 // This functionality is implemented in a final package-private method
1299 // to insure that it cannot be overridden by client subclasses.
1300 final void toFront_NoClientCode() {
1301 if (visible) {
1302 WindowPeer peer = (WindowPeer)this.peer;
1303 if (peer != null) {
1304 peer.toFront();
1305 }
1306 if (isModalBlocked()) {
1307 modalBlocker.toFront_NoClientCode();
1308 }
1309 }
1310 }
1311
1312 /**
1313 * If this Window is visible, sends this Window to the back and may cause
1314 * it to lose focus or activation if it is the focused or active Window.
1315 * <p>
1316 * Places this Window at the bottom of the stacking order and shows it
1317 * behind any other Windows in this VM. No action will take place is this
1318 * Window is not visible. Some platforms do not allow Windows which are
1319 * owned by other Windows to appear below their owners. Every attempt will
1320 * be made to move this Window as low as possible in the stacking order;
1321 * however, developers should not assume that this method will move this
1322 * Window below all other windows in every situation.
1323 * <p>
1324 * Because of variations in native windowing systems, no guarantees about
1325 * changes to the focused and active Windows can be made. Developers must
1326 * never assume that this Window is no longer the focused or active Window
1327 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1328 * event. On platforms where the top-most window is the focused window,
1329 * this method will <b>probably</b> cause this Window to lose focus. In
1330 * that case, the next highest, focusable Window in this VM will receive
1331 * focus. On platforms where the stacking order does not typically affect
1332 * the focused window, this method will <b>probably</b> leave the focused
1333 * and active Windows unchanged.
1334 *
1335 * @see #toFront
1336 */
1337 public void toBack() {
1338 toBack_NoClientCode();
1339 }
1340
1341 // This functionality is implemented in a final package-private method
1342 // to insure that it cannot be overridden by client subclasses.
1343 final void toBack_NoClientCode() {
1344 if(isAlwaysOnTop()) {
1345 try {
1346 setAlwaysOnTop(false);
1347 }catch(SecurityException e) {
1348 }
1349 }
1350 if (visible) {
1351 WindowPeer peer = (WindowPeer)this.peer;
1352 if (peer != null) {
1353 peer.toBack();
1354 }
1355 }
1356 }
1357
1358 /**
1359 * Returns the toolkit of this frame.
1360 * @return the toolkit of this window.
1361 * @see Toolkit
1362 * @see Toolkit#getDefaultToolkit
1363 * @see Component#getToolkit
1364 */
1365 public Toolkit getToolkit() {
1366 return Toolkit.getDefaultToolkit();
1367 }
1368
1369 /**
1370 * Gets the warning string that is displayed with this window.
1371 * If this window is insecure, the warning string is displayed
1372 * somewhere in the visible area of the window. A window is
1373 * insecure if there is a security manager and the security
1374 * manager denies
1375 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1376 * <p>
1377 * If the window is secure, then {@code getWarningString}
1378 * returns {@code null}. If the window is insecure, this
1379 * method checks for the system property
1380 * {@code awt.appletWarning}
1381 * and returns the string value of that property.
1382 * @return the warning string for this window.
1383 */
1384 public final String getWarningString() {
1385 return warningString;
1386 }
1387
1388 private void setWarningString() {
1389 warningString = null;
1390 SecurityManager sm = System.getSecurityManager();
1391 if (sm != null) {
1392 try {
1393 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1394 } catch (SecurityException se) {
1395 // make sure the privileged action is only
1396 // for getting the property! We don't want the
1397 // above checkPermission call to always succeed!
1398 warningString = AccessController.doPrivileged(
1399 new GetPropertyAction("awt.appletWarning",
1400 "Java Applet Window"));
1401 }
1402 }
1403 }
1404
1405 /**
1406 * Gets the {@code Locale} object that is associated
1407 * with this window, if the locale has been set.
1408 * If no locale has been set, then the default locale
1409 * is returned.
1410 * @return the locale that is set for this window.
1411 * @see java.util.Locale
1412 * @since 1.1
1413 */
1414 public Locale getLocale() {
1415 if (this.locale == null) {
1416 return Locale.getDefault();
1417 }
1418 return this.locale;
1419 }
1420
1421 /**
1422 * Gets the input context for this window. A window always has an input context,
1423 * which is shared by subcomponents unless they create and set their own.
1424 * @see Component#getInputContext
1425 * @since 1.2
1426 */
1427 public InputContext getInputContext() {
1428 synchronized (inputContextLock) {
1429 if (inputContext == null) {
1430 inputContext = InputContext.getInstance();
1431 }
1432 }
1433 return inputContext;
1434 }
1435
1436 /**
1437 * Set the cursor image to a specified cursor.
1438 * <p>
1439 * The method may have no visual effect if the Java platform
1440 * implementation and/or the native system do not support
1441 * changing the mouse cursor shape.
1442 * @param cursor One of the constants defined
1443 * by the {@code Cursor} class. If this parameter is null
1444 * then the cursor for this window will be set to the type
1445 * Cursor.DEFAULT_CURSOR.
1446 * @see Component#getCursor
1447 * @see Cursor
1448 * @since 1.1
1449 */
1450 public void setCursor(Cursor cursor) {
1451 if (cursor == null) {
1452 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1453 }
1454 super.setCursor(cursor);
1455 }
1456
1457 /**
1458 * Returns the owner of this window.
1459 *
1460 * @return the owner of this window
1461 * @since 1.2
1462 */
1463 public Window getOwner() {
1464 return getOwner_NoClientCode();
1465 }
1466 final Window getOwner_NoClientCode() {
1467 return (Window)parent;
1468 }
1469
1470 /**
1471 * Return an array containing all the windows this
1472 * window currently owns.
1473 *
1474 * @return the array of all the owned windows
1475 * @since 1.2
1476 */
1477 public Window[] getOwnedWindows() {
1478 return getOwnedWindows_NoClientCode();
1479 }
1480 final Window[] getOwnedWindows_NoClientCode() {
1481 Window[] realCopy;
1482
1483 synchronized(ownedWindowList) {
1484 // Recall that ownedWindowList is actually a Vector of
1485 // WeakReferences and calling get() on one of these references
1486 // may return null. Make two arrays-- one the size of the
1487 // Vector (fullCopy with size fullSize), and one the size of
1488 // all non-null get()s (realCopy with size realSize).
1489 int fullSize = ownedWindowList.size();
1490 int realSize = 0;
1491 Window[] fullCopy = new Window[fullSize];
1492
1493 for (int i = 0; i < fullSize; i++) {
1494 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1495
1496 if (fullCopy[realSize] != null) {
1497 realSize++;
1498 }
1499 }
1500
1501 if (fullSize != realSize) {
1502 realCopy = Arrays.copyOf(fullCopy, realSize);
1503 } else {
1504 realCopy = fullCopy;
1505 }
1506 }
1507
1508 return realCopy;
1509 }
1510
1511 boolean isModalBlocked() {
1512 return modalBlocker != null;
1513 }
1514
1515 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1516 this.modalBlocker = blocked ? blocker : null;
1517 if (peerCall) {
1518 WindowPeer peer = (WindowPeer)this.peer;
1519 if (peer != null) {
1520 peer.setModalBlocked(blocker, blocked);
1521 }
1522 }
1523 }
1524
1525 Dialog getModalBlocker() {
1526 return modalBlocker;
1527 }
1528
1529 /*
1530 * Returns a list of all displayable Windows, i. e. all the
1531 * Windows which peer is not null.
1532 *
1533 * @see #addNotify
1534 * @see #removeNotify
1535 */
1536 static IdentityArrayList<Window> getAllWindows() {
1537 synchronized (allWindows) {
1538 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1539 v.addAll(allWindows);
1540 return v;
1541 }
1542 }
1543
1544 static IdentityArrayList<Window> getAllUnblockedWindows() {
1545 synchronized (allWindows) {
1546 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1547 for (int i = 0; i < allWindows.size(); i++) {
1548 Window w = allWindows.get(i);
1549 if (!w.isModalBlocked()) {
1550 unblocked.add(w);
1551 }
1552 }
1553 return unblocked;
1554 }
1555 }
1556
1557 private static Window[] getWindows(AppContext appContext) {
1558 synchronized (Window.class) {
1559 Window[] realCopy;
1560 @SuppressWarnings("unchecked")
1561 Vector<WeakReference<Window>> windowList =
1562 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1563 if (windowList != null) {
1564 int fullSize = windowList.size();
1565 int realSize = 0;
1566 Window[] fullCopy = new Window[fullSize];
1567 for (int i = 0; i < fullSize; i++) {
1568 Window w = windowList.get(i).get();
1569 if (w != null) {
1570 fullCopy[realSize++] = w;
1571 }
1572 }
1573 if (fullSize != realSize) {
1574 realCopy = Arrays.copyOf(fullCopy, realSize);
1575 } else {
1576 realCopy = fullCopy;
1577 }
1578 } else {
1579 realCopy = new Window[0];
1580 }
1581 return realCopy;
1582 }
1583 }
1584
1585 /**
1586 * Returns an array of all {@code Window}s, both owned and ownerless,
1587 * created by this application.
1588 * If called from an applet, the array includes only the {@code Window}s
1589 * accessible by that applet.
1590 * <p>
1591 * <b>Warning:</b> this method may return system created windows, such
1592 * as a print dialog. Applications should not assume the existence of
1593 * these dialogs, nor should an application assume anything about these
1594 * dialogs such as component positions, {@code LayoutManager}s
1595 * or serialization.
1596 *
1597 * @return the array of all the {@code Window}s created by the application
1598 * @see Frame#getFrames
1599 * @see Window#getOwnerlessWindows
1600 *
1601 * @since 1.6
1602 */
1603 public static Window[] getWindows() {
1604 return getWindows(AppContext.getAppContext());
1605 }
1606
1607 /**
1608 * Returns an array of all {@code Window}s created by this application
1609 * that have no owner. They include {@code Frame}s and ownerless
1610 * {@code Dialog}s and {@code Window}s.
1611 * If called from an applet, the array includes only the {@code Window}s
1612 * accessible by that applet.
1613 * <p>
1614 * <b>Warning:</b> this method may return system created windows, such
1615 * as a print dialog. Applications should not assume the existence of
1616 * these dialogs, nor should an application assume anything about these
1617 * dialogs such as component positions, {@code LayoutManager}s
1618 * or serialization.
1619 *
1620 * @return the array of all the ownerless {@code Window}s
1621 * created by this application
1622 * @see Frame#getFrames
1623 * @see Window#getWindows()
1624 *
1625 * @since 1.6
1626 */
1627 public static Window[] getOwnerlessWindows() {
1628 Window[] allWindows = Window.getWindows();
1629
1630 int ownerlessCount = 0;
1631 for (Window w : allWindows) {
1632 if (w.getOwner() == null) {
1633 ownerlessCount++;
1634 }
1635 }
1636
1637 Window[] ownerless = new Window[ownerlessCount];
1638 int c = 0;
1639 for (Window w : allWindows) {
1640 if (w.getOwner() == null) {
1641 ownerless[c++] = w;
1642 }
1643 }
1644
1645 return ownerless;
1646 }
1647
1648 Window getDocumentRoot() {
1649 synchronized (getTreeLock()) {
1650 Window w = this;
1651 while (w.getOwner() != null) {
1652 w = w.getOwner();
1653 }
1654 return w;
1655 }
1656 }
1657
1658 /**
1659 * Specifies the modal exclusion type for this window. If a window is modal
1660 * excluded, it is not blocked by some modal dialogs. See {@link
1661 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1662 * possible modal exclusion types.
1663 * <p>
1664 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1665 * <p>
1666 * Note: changing the modal exclusion type for a visible window may have no
1667 * effect until it is hidden and then shown again.
1668 *
1669 * @param exclusionType the modal exclusion type for this window; a {@code null}
1670 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1671 * NO_EXCLUDE}
1672 * @throws SecurityException if the calling thread does not have permission
1673 * to set the modal exclusion property to the window with the given
1674 * {@code exclusionType}
1675 * @see java.awt.Dialog.ModalExclusionType
1676 * @see java.awt.Window#getModalExclusionType
1677 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1678 *
1679 * @since 1.6
1680 */
1681 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1682 if (exclusionType == null) {
1683 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1684 }
1685 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1686 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1687 }
1688 if (modalExclusionType == exclusionType) {
1689 return;
1690 }
1691 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1692 SecurityManager sm = System.getSecurityManager();
1693 if (sm != null) {
1694 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1695 }
1696 }
1697 modalExclusionType = exclusionType;
1698
1699 // if we want on-fly changes, we need to uncomment the lines below
1700 // and override the method in Dialog to use modalShow() instead
1701 // of updateChildrenBlocking()
1702 /*
1703 if (isModalBlocked()) {
1704 modalBlocker.unblockWindow(this);
1705 }
1706 Dialog.checkShouldBeBlocked(this);
1707 updateChildrenBlocking();
1708 */
1709 }
1710
1711 /**
1712 * Returns the modal exclusion type of this window.
1713 *
1714 * @return the modal exclusion type of this window
1715 *
1716 * @see java.awt.Dialog.ModalExclusionType
1717 * @see java.awt.Window#setModalExclusionType
1718 *
1719 * @since 1.6
1720 */
1721 public Dialog.ModalExclusionType getModalExclusionType() {
1722 return modalExclusionType;
1723 }
1724
1725 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1726 if ((modalExclusionType != null) &&
1727 modalExclusionType.compareTo(exclusionType) >= 0)
1728 {
1729 return true;
1730 }
1731 Window owner = getOwner_NoClientCode();
1732 return (owner != null) && owner.isModalExcluded(exclusionType);
1733 }
1734
1735 void updateChildrenBlocking() {
1736 Vector<Window> childHierarchy = new Vector<Window>();
1737 Window[] ownedWindows = getOwnedWindows();
1738 for (int i = 0; i < ownedWindows.length; i++) {
1739 childHierarchy.add(ownedWindows[i]);
1740 }
1741 int k = 0;
1742 while (k < childHierarchy.size()) {
1743 Window w = childHierarchy.get(k);
1744 if (w.isVisible()) {
1745 if (w.isModalBlocked()) {
1746 Dialog blocker = w.getModalBlocker();
1747 blocker.unblockWindow(w);
1748 }
1749 Dialog.checkShouldBeBlocked(w);
1750 Window[] wOwned = w.getOwnedWindows();
1751 for (int j = 0; j < wOwned.length; j++) {
1752 childHierarchy.add(wOwned[j]);
1753 }
1754 }
1755 k++;
1756 }
1757 }
1758
1759 /**
1760 * Adds the specified window listener to receive window events from
1761 * this window.
1762 * If l is null, no exception is thrown and no action is performed.
1763 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1764 * >AWT Threading Issues</a> for details on AWT's threading model.
1765 *
1766 * @param l the window listener
1767 * @see #removeWindowListener
1768 * @see #getWindowListeners
1769 */
1770 public synchronized void addWindowListener(WindowListener l) {
1771 if (l == null) {
1772 return;
1773 }
1774 newEventsOnly = true;
1775 windowListener = AWTEventMulticaster.add(windowListener, l);
1776 }
1777
1778 /**
1779 * Adds the specified window state listener to receive window
1780 * events from this window. If {@code l} is {@code null},
1781 * no exception is thrown and no action is performed.
1782 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1783 * >AWT Threading Issues</a> for details on AWT's threading model.
1784 *
1785 * @param l the window state listener
1786 * @see #removeWindowStateListener
1787 * @see #getWindowStateListeners
1788 * @since 1.4
1789 */
1790 public synchronized void addWindowStateListener(WindowStateListener l) {
1791 if (l == null) {
1792 return;
1793 }
1794 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1795 newEventsOnly = true;
1796 }
1797
1798 /**
1799 * Adds the specified window focus listener to receive window events
1800 * from this window.
1801 * If l is null, no exception is thrown and no action is performed.
1802 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1803 * >AWT Threading Issues</a> for details on AWT's threading model.
1804 *
1805 * @param l the window focus listener
1806 * @see #removeWindowFocusListener
1807 * @see #getWindowFocusListeners
1808 * @since 1.4
1809 */
1810 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1811 if (l == null) {
1812 return;
1813 }
1814 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1815 newEventsOnly = true;
1816 }
1817
1818 /**
1819 * Removes the specified window listener so that it no longer
1820 * receives window events from this window.
1821 * If l is null, no exception is thrown and no action is performed.
1822 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1823 * >AWT Threading Issues</a> for details on AWT's threading model.
1824 *
1825 * @param l the window listener
1826 * @see #addWindowListener
1827 * @see #getWindowListeners
1828 */
1829 public synchronized void removeWindowListener(WindowListener l) {
1830 if (l == null) {
1831 return;
1832 }
1833 windowListener = AWTEventMulticaster.remove(windowListener, l);
1834 }
1835
1836 /**
1837 * Removes the specified window state listener so that it no
1838 * longer receives window events from this window. If
1839 * {@code l} is {@code null}, no exception is thrown and
1840 * no action is performed.
1841 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1842 * >AWT Threading Issues</a> for details on AWT's threading model.
1843 *
1844 * @param l the window state listener
1845 * @see #addWindowStateListener
1846 * @see #getWindowStateListeners
1847 * @since 1.4
1848 */
1849 public synchronized void removeWindowStateListener(WindowStateListener l) {
1850 if (l == null) {
1851 return;
1852 }
1853 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1854 }
1855
1856 /**
1857 * Removes the specified window focus listener so that it no longer
1858 * receives window events from this window.
1859 * If l is null, no exception is thrown and no action is performed.
1860 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1861 * >AWT Threading Issues</a> for details on AWT's threading model.
1862 *
1863 * @param l the window focus listener
1864 * @see #addWindowFocusListener
1865 * @see #getWindowFocusListeners
1866 * @since 1.4
1867 */
1868 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1869 if (l == null) {
1870 return;
1871 }
1872 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1873 }
1874
1875 /**
1876 * Returns an array of all the window listeners
1877 * registered on this window.
1878 *
1879 * @return all of this window's {@code WindowListener}s
1880 * or an empty array if no window
1881 * listeners are currently registered
1882 *
1883 * @see #addWindowListener
1884 * @see #removeWindowListener
1885 * @since 1.4
1886 */
1887 public synchronized WindowListener[] getWindowListeners() {
1888 return getListeners(WindowListener.class);
1889 }
1890
1891 /**
1892 * Returns an array of all the window focus listeners
1893 * registered on this window.
1894 *
1895 * @return all of this window's {@code WindowFocusListener}s
1896 * or an empty array if no window focus
1897 * listeners are currently registered
1898 *
1899 * @see #addWindowFocusListener
1900 * @see #removeWindowFocusListener
1901 * @since 1.4
1902 */
1903 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1904 return getListeners(WindowFocusListener.class);
1905 }
1906
1907 /**
1908 * Returns an array of all the window state listeners
1909 * registered on this window.
1910 *
1911 * @return all of this window's {@code WindowStateListener}s
1912 * or an empty array if no window state
1913 * listeners are currently registered
1914 *
1915 * @see #addWindowStateListener
1916 * @see #removeWindowStateListener
1917 * @since 1.4
1918 */
1919 public synchronized WindowStateListener[] getWindowStateListeners() {
1920 return getListeners(WindowStateListener.class);
1921 }
1922
1923
1924 /**
1925 * Returns an array of all the objects currently registered
1926 * as <code><em>Foo</em>Listener</code>s
1927 * upon this {@code Window}.
1928 * <code><em>Foo</em>Listener</code>s are registered using the
1929 * <code>add<em>Foo</em>Listener</code> method.
1930 *
1931 * <p>
1932 *
1933 * You can specify the {@code listenerType} argument
1934 * with a class literal, such as
1935 * <code><em>Foo</em>Listener.class</code>.
1936 * For example, you can query a
1937 * {@code Window w}
1938 * for its window listeners with the following code:
1939 *
1940 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1941 *
1942 * If no such listeners exist, this method returns an empty array.
1943 *
1944 * @param listenerType the type of listeners requested; this parameter
1945 * should specify an interface that descends from
1946 * {@code java.util.EventListener}
1947 * @return an array of all objects registered as
1948 * <code><em>Foo</em>Listener</code>s on this window,
1949 * or an empty array if no such
1950 * listeners have been added
1951 * @exception ClassCastException if {@code listenerType}
1952 * doesn't specify a class or interface that implements
1953 * {@code java.util.EventListener}
1954 * @exception NullPointerException if {@code listenerType} is {@code null}
1955 *
1956 * @see #getWindowListeners
1957 * @since 1.3
1958 */
1959 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1960 EventListener l = null;
1961 if (listenerType == WindowFocusListener.class) {
1962 l = windowFocusListener;
1963 } else if (listenerType == WindowStateListener.class) {
1964 l = windowStateListener;
1965 } else if (listenerType == WindowListener.class) {
1966 l = windowListener;
1967 } else {
1968 return super.getListeners(listenerType);
1969 }
1970 return AWTEventMulticaster.getListeners(l, listenerType);
1971 }
1972
1973 // REMIND: remove when filtering is handled at lower level
1974 boolean eventEnabled(AWTEvent e) {
1975 switch(e.id) {
1976 case WindowEvent.WINDOW_OPENED:
1977 case WindowEvent.WINDOW_CLOSING:
1978 case WindowEvent.WINDOW_CLOSED:
1979 case WindowEvent.WINDOW_ICONIFIED:
1980 case WindowEvent.WINDOW_DEICONIFIED:
1981 case WindowEvent.WINDOW_ACTIVATED:
1982 case WindowEvent.WINDOW_DEACTIVATED:
1983 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1984 windowListener != null) {
1985 return true;
1986 }
1987 return false;
1988 case WindowEvent.WINDOW_GAINED_FOCUS:
1989 case WindowEvent.WINDOW_LOST_FOCUS:
1990 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1991 windowFocusListener != null) {
1992 return true;
1993 }
1994 return false;
1995 case WindowEvent.WINDOW_STATE_CHANGED:
1996 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1997 windowStateListener != null) {
1998 return true;
1999 }
2000 return false;
2001 default:
2002 break;
2003 }
2004 return super.eventEnabled(e);
2005 }
2006
2007 /**
2008 * Processes events on this window. If the event is an
2009 * {@code WindowEvent}, it invokes the
2010 * {@code processWindowEvent} method, else it invokes its
2011 * superclass's {@code processEvent}.
2012 * <p>Note that if the event parameter is {@code null}
2013 * the behavior is unspecified and may result in an
2014 * exception.
2015 *
2016 * @param e the event
2017 */
2018 protected void processEvent(AWTEvent e) {
2019 if (e instanceof WindowEvent) {
2020 switch (e.getID()) {
2021 case WindowEvent.WINDOW_OPENED:
2022 case WindowEvent.WINDOW_CLOSING:
2023 case WindowEvent.WINDOW_CLOSED:
2024 case WindowEvent.WINDOW_ICONIFIED:
2025 case WindowEvent.WINDOW_DEICONIFIED:
2026 case WindowEvent.WINDOW_ACTIVATED:
2027 case WindowEvent.WINDOW_DEACTIVATED:
2028 processWindowEvent((WindowEvent)e);
2029 break;
2030 case WindowEvent.WINDOW_GAINED_FOCUS:
2031 case WindowEvent.WINDOW_LOST_FOCUS:
2032 processWindowFocusEvent((WindowEvent)e);
2033 break;
2034 case WindowEvent.WINDOW_STATE_CHANGED:
2035 processWindowStateEvent((WindowEvent)e);
2036 break;
2037 }
2038 return;
2039 }
2040 super.processEvent(e);
2041 }
2042
2043 /**
2044 * Processes window events occurring on this window by
2045 * dispatching them to any registered WindowListener objects.
2046 * NOTE: This method will not be called unless window events
2047 * are enabled for this component; this happens when one of the
2048 * following occurs:
2049 * <ul>
2050 * <li>A WindowListener object is registered via
2051 * {@code addWindowListener}
2052 * <li>Window events are enabled via {@code enableEvents}
2053 * </ul>
2054 * <p>Note that if the event parameter is {@code null}
2055 * the behavior is unspecified and may result in an
2056 * exception.
2057 *
2058 * @param e the window event
2059 * @see Component#enableEvents
2060 */
2061 protected void processWindowEvent(WindowEvent e) {
2062 WindowListener listener = windowListener;
2063 if (listener != null) {
2064 switch(e.getID()) {
2065 case WindowEvent.WINDOW_OPENED:
2066 listener.windowOpened(e);
2067 break;
2068 case WindowEvent.WINDOW_CLOSING:
2069 listener.windowClosing(e);
2070 break;
2071 case WindowEvent.WINDOW_CLOSED:
2072 listener.windowClosed(e);
2073 break;
2074 case WindowEvent.WINDOW_ICONIFIED:
2075 listener.windowIconified(e);
2076 break;
2077 case WindowEvent.WINDOW_DEICONIFIED:
2078 listener.windowDeiconified(e);
2079 break;
2080 case WindowEvent.WINDOW_ACTIVATED:
2081 listener.windowActivated(e);
2082 break;
2083 case WindowEvent.WINDOW_DEACTIVATED:
2084 listener.windowDeactivated(e);
2085 break;
2086 default:
2087 break;
2088 }
2089 }
2090 }
2091
2092 /**
2093 * Processes window focus event occurring on this window by
2094 * dispatching them to any registered WindowFocusListener objects.
2095 * NOTE: this method will not be called unless window focus events
2096 * are enabled for this window. This happens when one of the
2097 * following occurs:
2098 * <ul>
2099 * <li>a WindowFocusListener is registered via
2100 * {@code addWindowFocusListener}
2101 * <li>Window focus events are enabled via {@code enableEvents}
2102 * </ul>
2103 * <p>Note that if the event parameter is {@code null}
2104 * the behavior is unspecified and may result in an
2105 * exception.
2106 *
2107 * @param e the window focus event
2108 * @see Component#enableEvents
2109 * @since 1.4
2110 */
2111 protected void processWindowFocusEvent(WindowEvent e) {
2112 WindowFocusListener listener = windowFocusListener;
2113 if (listener != null) {
2114 switch (e.getID()) {
2115 case WindowEvent.WINDOW_GAINED_FOCUS:
2116 listener.windowGainedFocus(e);
2117 break;
2118 case WindowEvent.WINDOW_LOST_FOCUS:
2119 listener.windowLostFocus(e);
2120 break;
2121 default:
2122 break;
2123 }
2124 }
2125 }
2126
2127 /**
2128 * Processes window state event occurring on this window by
2129 * dispatching them to any registered {@code WindowStateListener}
2130 * objects.
2131 * NOTE: this method will not be called unless window state events
2132 * are enabled for this window. This happens when one of the
2133 * following occurs:
2134 * <ul>
2135 * <li>a {@code WindowStateListener} is registered via
2136 * {@code addWindowStateListener}
2137 * <li>window state events are enabled via {@code enableEvents}
2138 * </ul>
2139 * <p>Note that if the event parameter is {@code null}
2140 * the behavior is unspecified and may result in an
2141 * exception.
2142 *
2143 * @param e the window state event
2144 * @see java.awt.Component#enableEvents
2145 * @since 1.4
2146 */
2147 protected void processWindowStateEvent(WindowEvent e) {
2148 WindowStateListener listener = windowStateListener;
2149 if (listener != null) {
2150 switch (e.getID()) {
2151 case WindowEvent.WINDOW_STATE_CHANGED:
2152 listener.windowStateChanged(e);
2153 break;
2154 default:
2155 break;
2156 }
2157 }
2158 }
2159
2160 /**
2161 * Implements a debugging hook -- checks to see if
2162 * the user has typed <i>control-shift-F1</i>. If so,
2163 * the list of child windows is dumped to {@code System.out}.
2164 * @param e the keyboard event
2165 */
2166 void preProcessKeyEvent(KeyEvent e) {
2167 // Dump the list of child windows to System.out if debug is enabled.
2168 if (DebugSettings.getInstance().getBoolean("on", false)) {
2169 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2170 e.isControlDown() && e.isShiftDown() &&
2171 e.getID() == KeyEvent.KEY_PRESSED) {
2172 list(System.out, 0);
2173 }
2174 }
2175 }
2176
2177 void postProcessKeyEvent(KeyEvent e) {
2178 // Do nothing
2179 }
2180
2181
2182 /**
2183 * Sets whether this window should always be above other windows. If
2184 * there are multiple always-on-top windows, their relative order is
2185 * unspecified and platform dependent.
2186 * <p>
2187 * If some other window is already always-on-top then the
2188 * relative order between these windows is unspecified (depends on
2189 * platform). No window can be brought to be over the always-on-top
2190 * window except maybe another always-on-top window.
2191 * <p>
2192 * All windows owned by an always-on-top window inherit this state and
2193 * automatically become always-on-top. If a window ceases to be
2194 * always-on-top, the windows that it owns will no longer be
2195 * always-on-top. When an always-on-top window is sent {@link #toBack
2196 * toBack}, its always-on-top state is set to {@code false}.
2197 *
2198 * <p> When this method is called on a window with a value of
2199 * {@code true}, and the window is visible and the platform
2200 * supports always-on-top for this window, the window is immediately
2201 * brought forward, "sticking" it in the top-most position. If the
2202 * window isn`t currently visible, this method sets the always-on-top
2203 * state to {@code true} but does not bring the window forward.
2204 * When the window is later shown, it will be always-on-top.
2205 *
2206 * <p> When this method is called on a window with a value of
2207 * {@code false} the always-on-top state is set to normal. It may also
2208 * cause an unspecified, platform-dependent change in the z-order of
2209 * top-level windows, but other always-on-top windows will remain in
2210 * top-most position. Calling this method with a value of {@code false}
2211 * on a window that has a normal state has no effect.
2212 *
2213 * <p><b>Note</b>: some platforms might not support always-on-top
2214 * windows. To detect if always-on-top windows are supported by the
2215 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2216 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2217 * isn't supported for this window or this window's toolkit does not
2218 * support always-on-top windows, calling this method has no effect.
2219 * <p>
2220 * If a SecurityManager is installed, the calling thread must be
2221 * granted the AWTPermission "setWindowAlwaysOnTop" in
2222 * order to set the value of this property. If this
2223 * permission is not granted, this method will throw a
2224 * SecurityException, and the current value of the property will
2225 * be left unchanged.
2226 *
2227 * @param alwaysOnTop true if the window should always be above other
2228 * windows
2229 * @throws SecurityException if the calling thread does not have
2230 * permission to set the value of always-on-top property
2231 *
2232 * @see #isAlwaysOnTop
2233 * @see #toFront
2234 * @see #toBack
2235 * @see AWTPermission
2236 * @see #isAlwaysOnTopSupported
2237 * @see #getToolkit
2238 * @see Toolkit#isAlwaysOnTopSupported
2239 * @since 1.5
2240 */
2241 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2242 SecurityManager security = System.getSecurityManager();
2243 if (security != null) {
2244 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2245 }
2246
2247 boolean oldAlwaysOnTop;
2248 synchronized(this) {
2249 oldAlwaysOnTop = this.alwaysOnTop;
2250 this.alwaysOnTop = alwaysOnTop;
2251 }
2252 if (oldAlwaysOnTop != alwaysOnTop ) {
2253 if (isAlwaysOnTopSupported()) {
2254 WindowPeer peer = (WindowPeer)this.peer;
2255 synchronized(getTreeLock()) {
2256 if (peer != null) {
2257 peer.updateAlwaysOnTopState();
2258 }
2259 }
2260 }
2261 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2262 }
2263 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2264 }
2265
2266 @SuppressWarnings({"rawtypes", "unchecked"})
2267 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2268 WeakReference<Window>[] ownedWindowArray;
2269 synchronized (ownedWindowList) {
2270 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2271 ownedWindowList.copyInto(ownedWindowArray);
2272 }
2273
2274 for (WeakReference<Window> ref : ownedWindowArray) {
2275 Window window = ref.get();
2276 if (window != null) {
2277 try {
2278 window.setAlwaysOnTop(alwaysOnTop);
2279 } catch (SecurityException ignore) {
2280 }
2281 }
2282 }
2283 }
2284
2285 /**
2286 * Returns whether the always-on-top mode is supported for this
2287 * window. Some platforms may not support always-on-top windows, some
2288 * may support only some kinds of top-level windows; for example,
2289 * a platform may not support always-on-top modal dialogs.
2290 *
2291 * @return {@code true}, if the always-on-top mode is supported for
2292 * this window and this window's toolkit supports always-on-top windows,
2293 * {@code false} otherwise
2294 *
2295 * @see #setAlwaysOnTop(boolean)
2296 * @see #getToolkit
2297 * @see Toolkit#isAlwaysOnTopSupported
2298 * @since 1.6
2299 */
2300 public boolean isAlwaysOnTopSupported() {
2301 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2302 }
2303
2304
2305 /**
2306 * Returns whether this window is an always-on-top window.
2307 * @return {@code true}, if the window is in always-on-top state,
2308 * {@code false} otherwise
2309 * @see #setAlwaysOnTop
2310 * @since 1.5
2311 */
2312 public final boolean isAlwaysOnTop() {
2313 return alwaysOnTop;
2314 }
2315
2316
2317 /**
2318 * Returns the child Component of this Window that has focus if this Window
2319 * is focused; returns null otherwise.
2320 *
2321 * @return the child Component with focus, or null if this Window is not
2322 * focused
2323 * @see #getMostRecentFocusOwner
2324 * @see #isFocused
2325 */
2326 public Component getFocusOwner() {
2327 return (isFocused())
2328 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2329 getFocusOwner()
2330 : null;
2331 }
2332
2333 /**
2334 * Returns the child Component of this Window that will receive the focus
2335 * when this Window is focused. If this Window is currently focused, this
2336 * method returns the same Component as {@code getFocusOwner()}. If
2337 * this Window is not focused, then the child Component that most recently
2338 * requested focus will be returned. If no child Component has ever
2339 * requested focus, and this is a focusable Window, then this Window's
2340 * initial focusable Component is returned. If no child Component has ever
2341 * requested focus, and this is a non-focusable Window, null is returned.
2342 *
2343 * @return the child Component that will receive focus when this Window is
2344 * focused
2345 * @see #getFocusOwner
2346 * @see #isFocused
2347 * @see #isFocusableWindow
2348 * @since 1.4
2349 */
2350 public Component getMostRecentFocusOwner() {
2351 if (isFocused()) {
2352 return getFocusOwner();
2353 } else {
2354 Component mostRecent =
2355 KeyboardFocusManager.getMostRecentFocusOwner(this);
2356 if (mostRecent != null) {
2357 return mostRecent;
2358 } else {
2359 return (isFocusableWindow())
2360 ? getFocusTraversalPolicy().getInitialComponent(this)
2361 : null;
2362 }
2363 }
2364 }
2365
2366 /**
2367 * Returns whether this Window is active. Only a Frame or a Dialog may be
2368 * active. The native windowing system may denote the active Window or its
2369 * children with special decorations, such as a highlighted title bar. The
2370 * active Window is always either the focused Window, or the first Frame or
2371 * Dialog that is an owner of the focused Window.
2372 *
2373 * @return whether this is the active Window.
2374 * @see #isFocused
2375 * @since 1.4
2376 */
2377 public boolean isActive() {
2378 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2379 getActiveWindow() == this);
2380 }
2381
2382 /**
2383 * Returns whether this Window is focused. If there exists a focus owner,
2384 * the focused Window is the Window that is, or contains, that focus owner.
2385 * If there is no focus owner, then no Window is focused.
2386 * <p>
2387 * If the focused Window is a Frame or a Dialog it is also the active
2388 * Window. Otherwise, the active Window is the first Frame or Dialog that
2389 * is an owner of the focused Window.
2390 *
2391 * @return whether this is the focused Window.
2392 * @see #isActive
2393 * @since 1.4
2394 */
2395 public boolean isFocused() {
2396 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2397 getGlobalFocusedWindow() == this);
2398 }
2399
2400 /**
2401 * Gets a focus traversal key for this Window. (See {@code
2402 * setFocusTraversalKeys} for a full description of each key.)
2403 * <p>
2404 * If the traversal key has not been explicitly set for this Window,
2405 * then this Window's parent's traversal key is returned. If the
2406 * traversal key has not been explicitly set for any of this Window's
2407 * ancestors, then the current KeyboardFocusManager's default traversal key
2408 * is returned.
2409 *
2410 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2411 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2412 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2413 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2414 * @return the AWTKeyStroke for the specified key
2415 * @see Container#setFocusTraversalKeys
2416 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2417 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2418 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2419 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2420 * @throws IllegalArgumentException if id is not one of
2421 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2422 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2423 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2424 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2425 * @since 1.4
2426 */
2427 @SuppressWarnings("unchecked")
2428 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2429 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2430 throw new IllegalArgumentException("invalid focus traversal key identifier");
2431 }
2432
2433 // Okay to return Set directly because it is an unmodifiable view
2434 @SuppressWarnings("rawtypes")
2435 Set keystrokes = (focusTraversalKeys != null)
2436 ? focusTraversalKeys[id]
2437 : null;
2438
2439 if (keystrokes != null) {
2440 return keystrokes;
2441 } else {
2442 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2443 getDefaultFocusTraversalKeys(id);
2444 }
2445 }
2446
2447 /**
2448 * Does nothing because Windows must always be roots of a focus traversal
2449 * cycle. The passed-in value is ignored.
2450 *
2451 * @param focusCycleRoot this value is ignored
2452 * @see #isFocusCycleRoot
2453 * @see Container#setFocusTraversalPolicy
2454 * @see Container#getFocusTraversalPolicy
2455 * @since 1.4
2456 */
2457 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2458 }
2459
2460 /**
2461 * Always returns {@code true} because all Windows must be roots of a
2462 * focus traversal cycle.
2463 *
2464 * @return {@code true}
2465 * @see #setFocusCycleRoot
2466 * @see Container#setFocusTraversalPolicy
2467 * @see Container#getFocusTraversalPolicy
2468 * @since 1.4
2469 */
2470 public final boolean isFocusCycleRoot() {
2471 return true;
2472 }
2473
2474 /**
2475 * Always returns {@code null} because Windows have no ancestors; they
2476 * represent the top of the Component hierarchy.
2477 *
2478 * @return {@code null}
2479 * @see Container#isFocusCycleRoot()
2480 * @since 1.4
2481 */
2482 public final Container getFocusCycleRootAncestor() {
2483 return null;
2484 }
2485
2486 /**
2487 * Returns whether this Window can become the focused Window, that is,
2488 * whether this Window or any of its subcomponents can become the focus
2489 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2490 * must be set to {@code true}. For a Window which is not a Frame or
2491 * Dialog to be focusable, its focusable Window state must be set to
2492 * {@code true}, its nearest owning Frame or Dialog must be
2493 * showing on the screen, and it must contain at least one Component in
2494 * its focus traversal cycle. If any of these conditions is not met, then
2495 * neither this Window nor any of its subcomponents can become the focus
2496 * owner.
2497 *
2498 * @return {@code true} if this Window can be the focused Window;
2499 * {@code false} otherwise
2500 * @see #getFocusableWindowState
2501 * @see #setFocusableWindowState
2502 * @see #isShowing
2503 * @see Component#isFocusable
2504 * @since 1.4
2505 */
2506 public final boolean isFocusableWindow() {
2507 // If a Window/Frame/Dialog was made non-focusable, then it is always
2508 // non-focusable.
2509 if (!getFocusableWindowState()) {
2510 return false;
2511 }
2512
2513 // All other tests apply only to Windows.
2514 if (this instanceof Frame || this instanceof Dialog) {
2515 return true;
2516 }
2517
2518 // A Window must have at least one Component in its root focus
2519 // traversal cycle to be focusable.
2520 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2521 return false;
2522 }
2523
2524 // A Window's nearest owning Frame or Dialog must be showing on the
2525 // screen.
2526 for (Window owner = getOwner(); owner != null;
2527 owner = owner.getOwner())
2528 {
2529 if (owner instanceof Frame || owner instanceof Dialog) {
2530 return owner.isShowing();
2531 }
2532 }
2533
2534 return false;
2535 }
2536
2537 /**
2538 * Returns whether this Window can become the focused Window if it meets
2539 * the other requirements outlined in {@code isFocusableWindow}. If
2540 * this method returns {@code false}, then
2541 * {@code isFocusableWindow} will return {@code false} as well.
2542 * If this method returns {@code true}, then
2543 * {@code isFocusableWindow} may return {@code true} or
2544 * {@code false} depending upon the other requirements which must be
2545 * met in order for a Window to be focusable.
2546 * <p>
2547 * By default, all Windows have a focusable Window state of
2548 * {@code true}.
2549 *
2550 * @return whether this Window can be the focused Window
2551 * @see #isFocusableWindow
2552 * @see #setFocusableWindowState
2553 * @see #isShowing
2554 * @see Component#setFocusable
2555 * @since 1.4
2556 */
2557 public boolean getFocusableWindowState() {
2558 return focusableWindowState;
2559 }
2560
2561 /**
2562 * Sets whether this Window can become the focused Window if it meets
2563 * the other requirements outlined in {@code isFocusableWindow}. If
2564 * this Window's focusable Window state is set to {@code false}, then
2565 * {@code isFocusableWindow} will return {@code false}. If this
2566 * Window's focusable Window state is set to {@code true}, then
2567 * {@code isFocusableWindow} may return {@code true} or
2568 * {@code false} depending upon the other requirements which must be
2569 * met in order for a Window to be focusable.
2570 * <p>
2571 * Setting a Window's focusability state to {@code false} is the
2572 * standard mechanism for an application to identify to the AWT a Window
2573 * which will be used as a floating palette or toolbar, and thus should be
2574 * a non-focusable Window.
2575 *
2576 * Setting the focusability state on a visible {@code Window}
2577 * can have a delayed effect on some platforms — the actual
2578 * change may happen only when the {@code Window} becomes
2579 * hidden and then visible again. To ensure consistent behavior
2580 * across platforms, set the {@code Window}'s focusable state
2581 * when the {@code Window} is invisible and then show it.
2582 *
2583 * @param focusableWindowState whether this Window can be the focused
2584 * Window
2585 * @see #isFocusableWindow
2586 * @see #getFocusableWindowState
2587 * @see #isShowing
2588 * @see Component#setFocusable
2589 * @since 1.4
2590 */
2591 public void setFocusableWindowState(boolean focusableWindowState) {
2592 boolean oldFocusableWindowState;
2593 synchronized (this) {
2594 oldFocusableWindowState = this.focusableWindowState;
2595 this.focusableWindowState = focusableWindowState;
2596 }
2597 WindowPeer peer = (WindowPeer)this.peer;
2598 if (peer != null) {
2599 peer.updateFocusableWindowState();
2600 }
2601 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2602 focusableWindowState);
2603 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2604 for (Window owner = getOwner();
2605 owner != null;
2606 owner = owner.getOwner())
2607 {
2608 Component toFocus =
2609 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2610 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) {
2611 return;
2612 }
2613 }
2614 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2615 clearGlobalFocusOwnerPriv();
2616 }
2617 }
2618
2619 /**
2620 * Sets whether this window should receive focus on
2621 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2622 * or being moved to the front (with a call to {@link #toFront}).
2623 * <p>
2624 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2625 * (e.g. when showing an owner of the window makes the window to be shown).
2626 * {@link #toFront} may also be called indirectly (e.g. when
2627 * {@link #setVisible setVisible(true)} is called on already visible window).
2628 * In all such cases this property takes effect as well.
2629 * <p>
2630 * The value of the property is not inherited by owned windows.
2631 *
2632 * @param autoRequestFocus whether this window should be focused on
2633 * subsequently being shown or being moved to the front
2634 * @see #isAutoRequestFocus
2635 * @see #isFocusableWindow
2636 * @see #setVisible
2637 * @see #toFront
2638 * @since 1.7
2639 */
2640 public void setAutoRequestFocus(boolean autoRequestFocus) {
2641 this.autoRequestFocus = autoRequestFocus;
2642 }
2643
2644 /**
2645 * Returns whether this window should receive focus on subsequently being shown
2646 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2647 * (with a call to {@link #toFront}).
2648 * <p>
2649 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2650 *
2651 * @return {@code autoRequestFocus} value
2652 * @see #setAutoRequestFocus
2653 * @since 1.7
2654 */
2655 public boolean isAutoRequestFocus() {
2656 return autoRequestFocus;
2657 }
2658
2659 /**
2660 * Adds a PropertyChangeListener to the listener list. The listener is
2661 * registered for all bound properties of this class, including the
2662 * following:
2663 * <ul>
2664 * <li>this Window's font ("font")</li>
2665 * <li>this Window's background color ("background")</li>
2666 * <li>this Window's foreground color ("foreground")</li>
2667 * <li>this Window's focusability ("focusable")</li>
2668 * <li>this Window's focus traversal keys enabled state
2669 * ("focusTraversalKeysEnabled")</li>
2670 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2671 * ("forwardFocusTraversalKeys")</li>
2672 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2673 * ("backwardFocusTraversalKeys")</li>
2674 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2675 * ("upCycleFocusTraversalKeys")</li>
2676 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2677 * ("downCycleFocusTraversalKeys")</li>
2678 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2679 * </li>
2680 * <li>this Window's focusable Window state ("focusableWindowState")
2681 * </li>
2682 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2683 * </ul>
2684 * Note that if this Window is inheriting a bound property, then no
2685 * event will be fired in response to a change in the inherited property.
2686 * <p>
2687 * If listener is null, no exception is thrown and no action is performed.
2688 *
2689 * @param listener the PropertyChangeListener to be added
2690 *
2691 * @see Component#removePropertyChangeListener
2692 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2693 */
2694 public void addPropertyChangeListener(PropertyChangeListener listener) {
2695 super.addPropertyChangeListener(listener);
2696 }
2697
2698 /**
2699 * Adds a PropertyChangeListener to the listener list for a specific
2700 * property. The specified property may be user-defined, or one of the
2701 * following:
2702 * <ul>
2703 * <li>this Window's font ("font")</li>
2704 * <li>this Window's background color ("background")</li>
2705 * <li>this Window's foreground color ("foreground")</li>
2706 * <li>this Window's focusability ("focusable")</li>
2707 * <li>this Window's focus traversal keys enabled state
2708 * ("focusTraversalKeysEnabled")</li>
2709 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2710 * ("forwardFocusTraversalKeys")</li>
2711 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2712 * ("backwardFocusTraversalKeys")</li>
2713 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2714 * ("upCycleFocusTraversalKeys")</li>
2715 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2716 * ("downCycleFocusTraversalKeys")</li>
2717 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2718 * </li>
2719 * <li>this Window's focusable Window state ("focusableWindowState")
2720 * </li>
2721 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2722 * </ul>
2723 * Note that if this Window is inheriting a bound property, then no
2724 * event will be fired in response to a change in the inherited property.
2725 * <p>
2726 * If listener is null, no exception is thrown and no action is performed.
2727 *
2728 * @param propertyName one of the property names listed above
2729 * @param listener the PropertyChangeListener to be added
2730 *
2731 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2732 * @see Component#removePropertyChangeListener
2733 */
2734 public void addPropertyChangeListener(String propertyName,
2735 PropertyChangeListener listener) {
2736 super.addPropertyChangeListener(propertyName, listener);
2737 }
2738
2739 /**
2740 * Indicates if this container is a validate root.
2741 * <p>
2742 * {@code Window} objects are the validate roots, and, therefore, they
2743 * override this method to return {@code true}.
2744 *
2745 * @return {@code true}
2746 * @since 1.7
2747 * @see java.awt.Container#isValidateRoot
2748 */
2749 @Override
2750 public boolean isValidateRoot() {
2751 return true;
2752 }
2753
2754 /**
2755 * Dispatches an event to this window or one of its sub components.
2756 * @param e the event
2757 */
2758 void dispatchEventImpl(AWTEvent e) {
2759 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2760 invalidate();
2761 validate();
2762 }
2763 super.dispatchEventImpl(e);
2764 }
2765
2766 /**
2767 * @deprecated As of JDK version 1.1
2768 * replaced by {@code dispatchEvent(AWTEvent)}.
2769 */
2770 @Deprecated
2771 public boolean postEvent(Event e) {
2772 if (handleEvent(e)) {
2773 e.consume();
2774 return true;
2775 }
2776 return false;
2777 }
2778
2779 /**
2780 * Checks if this Window is showing on screen.
2781 * @see Component#setVisible
2782 */
2783 public boolean isShowing() {
2784 return visible;
2785 }
2786
2787 boolean isDisposing() {
2788 return disposing;
2789 }
2790
2791 /**
2792 * @deprecated As of J2SE 1.4, replaced by
2793 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2794 * @param rb the resource bundle
2795 */
2796 @Deprecated
2797 public void applyResourceBundle(ResourceBundle rb) {
2798 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2799 }
2800
2801 /**
2802 * @deprecated As of J2SE 1.4, replaced by
2803 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2804 * @param rbName the resource name
2805 */
2806 @Deprecated
2807 public void applyResourceBundle(String rbName) {
2808 // Use the unnamed module from the TCCL or system class loader.
2809 ClassLoader cl = Thread.currentThread().getContextClassLoader();
2810 if (cl == null) {
2811 cl = ClassLoader.getSystemClassLoader();
2812 }
2813 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule()));
2814 }
2815
2816 /*
2817 * Support for tracking all windows owned by this window
2818 */
2819 void addOwnedWindow(WeakReference<Window> weakWindow) {
2820 if (weakWindow != null) {
2821 synchronized(ownedWindowList) {
2822 // this if statement should really be an assert, but we don't
2823 // have asserts...
2824 if (!ownedWindowList.contains(weakWindow)) {
2825 ownedWindowList.addElement(weakWindow);
2826 }
2827 }
2828 }
2829 }
2830
2831 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2832 if (weakWindow != null) {
2833 // synchronized block not required since removeElement is
2834 // already synchronized
2835 ownedWindowList.removeElement(weakWindow);
2836 }
2837 }
2838
2839 void connectOwnedWindow(Window child) {
2840 child.parent = this;
2841 addOwnedWindow(child.weakThis);
2842 child.disposerRecord.updateOwner();
2843 }
2844
2845 private void addToWindowList() {
2846 synchronized (Window.class) {
2847 @SuppressWarnings("unchecked")
2848 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2849 if (windowList == null) {
2850 windowList = new Vector<WeakReference<Window>>();
2851 appContext.put(Window.class, windowList);
2852 }
2853 windowList.add(weakThis);
2854 }
2855 }
2856
2857 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2858 synchronized (Window.class) {
2859 @SuppressWarnings("unchecked")
2860 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2861 if (windowList != null) {
2862 windowList.remove(weakThis);
2863 }
2864 }
2865 }
2866
2867 private void removeFromWindowList() {
2868 removeFromWindowList(appContext, weakThis);
2869 }
2870
2871 /**
2872 * Window type.
2873 *
2874 * Synchronization: ObjectLock
2875 */
2876 private Type type = Type.NORMAL;
2877
2878 /**
2879 * Sets the type of the window.
2880 *
2881 * This method can only be called while the window is not displayable.
2882 *
2883 * @param type the window type
2884 * @throws IllegalComponentStateException if the window
2885 * is displayable.
2886 * @throws IllegalArgumentException if the type is {@code null}
2887 * @see Component#isDisplayable
2888 * @see #getType
2889 * @since 1.7
2890 */
2891 public void setType(Type type) {
2892 if (type == null) {
2893 throw new IllegalArgumentException("type should not be null.");
2894 }
2895 synchronized (getTreeLock()) {
2896 if (isDisplayable()) {
2897 throw new IllegalComponentStateException(
2898 "The window is displayable.");
2899 }
2900 synchronized (getObjectLock()) {
2901 this.type = type;
2902 }
2903 }
2904 }
2905
2906 /**
2907 * Returns the type of the window.
2908 *
2909 * @return the type of the window
2910 * @see #setType
2911 * @since 1.7
2912 */
2913 public Type getType() {
2914 synchronized (getObjectLock()) {
2915 return type;
2916 }
2917 }
2918
2919 /**
2920 * The window serialized data version.
2921 *
2922 * @serial
2923 */
2924 private int windowSerializedDataVersion = 2;
2925
2926 /**
2927 * Writes default serializable fields to stream. Writes
2928 * a list of serializable {@code WindowListener}s and
2929 * {@code WindowFocusListener}s as optional data.
2930 * Writes a list of child windows as optional data.
2931 * Writes a list of icon images as optional data
2932 *
2933 * @param s the {@code ObjectOutputStream} to write
2934 * @serialData {@code null} terminated sequence of
2935 * 0 or more pairs; the pair consists of a {@code String}
2936 * and {@code Object}; the {@code String}
2937 * indicates the type of object and is one of the following:
2938 * {@code windowListenerK} indicating a
2939 * {@code WindowListener} object;
2940 * {@code windowFocusWindowK} indicating a
2941 * {@code WindowFocusListener} object;
2942 * {@code ownedWindowK} indicating a child
2943 * {@code Window} object
2944 *
2945 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2946 * @see Component#windowListenerK
2947 * @see Component#windowFocusListenerK
2948 * @see Component#ownedWindowK
2949 * @see #readObject(ObjectInputStream)
2950 */
2951 private void writeObject(ObjectOutputStream s) throws IOException {
2952 synchronized (this) {
2953 // Update old focusMgr fields so that our object stream can be read
2954 // by previous releases
2955 focusMgr = new FocusManager();
2956 focusMgr.focusRoot = this;
2957 focusMgr.focusOwner = getMostRecentFocusOwner();
2958
2959 s.defaultWriteObject();
2960
2961 // Clear fields so that we don't keep extra references around
2962 focusMgr = null;
2963
2964 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2965 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2966 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2967 }
2968
2969 s.writeObject(null);
2970
2971 synchronized (ownedWindowList) {
2972 for (int i = 0; i < ownedWindowList.size(); i++) {
2973 Window child = ownedWindowList.elementAt(i).get();
2974 if (child != null) {
2975 s.writeObject(ownedWindowK);
2976 s.writeObject(child);
2977 }
2978 }
2979 }
2980 s.writeObject(null);
2981
2982 //write icon array
2983 if (icons != null) {
2984 for (Image i : icons) {
2985 if (i instanceof Serializable) {
2986 s.writeObject(i);
2987 }
2988 }
2989 }
2990 s.writeObject(null);
2991 }
2992
2993 //
2994 // Part of deserialization procedure to be called before
2995 // user's code.
2996 //
2997 private void initDeserializedWindow() {
2998 setWarningString();
2999 inputContextLock = new Object();
3000
3001 // Deserialized Windows are not yet visible.
3002 visible = false;
3003
3004 weakThis = new WeakReference<>(this);
3005
3006 anchor = new Object();
3007 disposerRecord = new WindowDisposerRecord(appContext, this);
3008 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
3009
3010 addToWindowList();
3011 initGC(null);
3012 ownedWindowList = new Vector<>();
3013 }
3014
3015 private void deserializeResources(ObjectInputStream s)
3016 throws ClassNotFoundException, IOException, HeadlessException {
3017
3018 if (windowSerializedDataVersion < 2) {
3019 // Translate old-style focus tracking to new model. For 1.4 and
3020 // later releases, we'll rely on the Window's initial focusable
3021 // Component.
3022 if (focusMgr != null) {
3023 if (focusMgr.focusOwner != null) {
3024 KeyboardFocusManager.
3025 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3026 }
3027 }
3028
3029 // This field is non-transient and relies on default serialization.
3030 // However, the default value is insufficient, so we need to set
3031 // it explicitly for object data streams prior to 1.4.
3032 focusableWindowState = true;
3033
3034
3035 }
3036
3037 Object keyOrNull;
3038 while(null != (keyOrNull = s.readObject())) {
3039 String key = ((String)keyOrNull).intern();
3040
3041 if (windowListenerK == key) {
3042 addWindowListener((WindowListener)(s.readObject()));
3043 } else if (windowFocusListenerK == key) {
3044 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3045 } else if (windowStateListenerK == key) {
3046 addWindowStateListener((WindowStateListener)(s.readObject()));
3047 } else // skip value for unrecognized key
3048 s.readObject();
3049 }
3050
3051 try {
3052 while (null != (keyOrNull = s.readObject())) {
3053 String key = ((String)keyOrNull).intern();
3054
3055 if (ownedWindowK == key)
3056 connectOwnedWindow((Window) s.readObject());
3057
3058 else // skip value for unrecognized key
3059 s.readObject();
3060 }
3061
3062 //read icons
3063 Object obj = s.readObject(); //Throws OptionalDataException
3064 //for pre1.6 objects.
3065 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3066 //pre1.6 version if icons is null.
3067 while (obj != null) {
3068 if (obj instanceof Image) {
3069 icons.add((Image)obj);
3070 }
3071 obj = s.readObject();
3072 }
3073 }
3074 catch (OptionalDataException e) {
3075 // 1.1 serialized form
3076 // ownedWindowList will be updated by Frame.readObject
3077 }
3078
3079 }
3080
3081 /**
3082 * Reads the {@code ObjectInputStream} and an optional
3083 * list of listeners to receive various events fired by
3084 * the component; also reads a list of
3085 * (possibly {@code null}) child windows.
3086 * Unrecognized keys or values will be ignored.
3087 *
3088 * @param s the {@code ObjectInputStream} to read
3089 * @exception HeadlessException if
3090 * {@code GraphicsEnvironment.isHeadless} returns
3091 * {@code true}
3092 * @see java.awt.GraphicsEnvironment#isHeadless
3093 * @see #writeObject
3094 */
3095 private void readObject(ObjectInputStream s)
3096 throws ClassNotFoundException, IOException, HeadlessException
3097 {
3098 GraphicsEnvironment.checkHeadless();
3099 initDeserializedWindow();
3100 ObjectInputStream.GetField f = s.readFields();
3101
3102 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3103 state = f.get("state", 0);
3104 focusableWindowState = f.get("focusableWindowState", true);
3105 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3106 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3107 // Note: 1.4 (or later) doesn't use focusMgr
3108 focusMgr = (FocusManager)f.get("focusMgr", null);
3109 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3110 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3111 setModalExclusionType(et); // since 6.0
3112 boolean aot = f.get("alwaysOnTop", false);
3113 if(aot) {
3114 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3115 }
3116 shape = (Shape)f.get("shape", null);
3117 opacity = (Float)f.get("opacity", 1.0f);
3118
3119 this.securityWarningWidth = 0;
3120 this.securityWarningHeight = 0;
3121
3122 deserializeResources(s);
3123 }
3124
3125 /*
3126 * --- Accessibility Support ---
3127 *
3128 */
3129
3130 /**
3131 * Gets the AccessibleContext associated with this Window.
3132 * For windows, the AccessibleContext takes the form of an
3133 * AccessibleAWTWindow.
3134 * A new AccessibleAWTWindow instance is created if necessary.
3135 *
3136 * @return an AccessibleAWTWindow that serves as the
3137 * AccessibleContext of this Window
3138 * @since 1.3
3139 */
3140 public AccessibleContext getAccessibleContext() {
3141 if (accessibleContext == null) {
3142 accessibleContext = new AccessibleAWTWindow();
3143 }
3144 return accessibleContext;
3145 }
3146
3147 /**
3148 * This class implements accessibility support for the
3149 * {@code Window} class. It provides an implementation of the
3150 * Java Accessibility API appropriate to window user-interface elements.
3151 * @since 1.3
3152 */
3153 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3154 {
3155 /*
3156 * JDK 1.3 serialVersionUID
3157 */
3158 private static final long serialVersionUID = 4215068635060671780L;
3159
3160 /**
3161 * Get the role of this object.
3162 *
3163 * @return an instance of AccessibleRole describing the role of the
3164 * object
3165 * @see javax.accessibility.AccessibleRole
3166 */
3167 public AccessibleRole getAccessibleRole() {
3168 return AccessibleRole.WINDOW;
3169 }
3170
3171 /**
3172 * Get the state of this object.
3173 *
3174 * @return an instance of AccessibleStateSet containing the current
3175 * state set of the object
3176 * @see javax.accessibility.AccessibleState
3177 */
3178 public AccessibleStateSet getAccessibleStateSet() {
3179 AccessibleStateSet states = super.getAccessibleStateSet();
3180 if (getFocusOwner() != null) {
3181 states.add(AccessibleState.ACTIVE);
3182 }
3183 return states;
3184 }
3185
3186 } // inner class AccessibleAWTWindow
3187
3188 @Override
3189 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3190 if (gc == null) {
3191 gc = GraphicsEnvironment.
3192 getLocalGraphicsEnvironment().
3193 getDefaultScreenDevice().
3194 getDefaultConfiguration();
3195 }
3196 synchronized (getTreeLock()) {
3197 super.setGraphicsConfiguration(gc);
3198 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3199 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3200 }
3201 }
3202 }
3203
3204 /**
3205 * Sets the location of the window relative to the specified
3206 * component according to the following scenarios.
3207 * <p>
3208 * The target screen mentioned below is a screen to which
3209 * the window should be placed after the setLocationRelativeTo
3210 * method is called.
3211 * <ul>
3212 * <li>If the component is {@code null}, or the {@code
3213 * GraphicsConfiguration} associated with this component is
3214 * {@code null}, the window is placed in the center of the
3215 * screen. The center point can be obtained with the {@link
3216 * GraphicsEnvironment#getCenterPoint
3217 * GraphicsEnvironment.getCenterPoint} method.
3218 * <li>If the component is not {@code null}, but it is not
3219 * currently showing, the window is placed in the center of
3220 * the target screen defined by the {@code
3221 * GraphicsConfiguration} associated with this component.
3222 * <li>If the component is not {@code null} and is shown on
3223 * the screen, then the window is located in such a way that
3224 * the center of the window coincides with the center of the
3225 * component.
3226 * </ul>
3227 * <p>
3228 * If the screens configuration does not allow the window to
3229 * be moved from one screen to another, then the window is
3230 * only placed at the location determined according to the
3231 * above conditions and its {@code GraphicsConfiguration} is
3232 * not changed.
3233 * <p>
3234 * <b>Note</b>: If the lower edge of the window is out of the screen,
3235 * then the window is placed to the side of the {@code Component}
3236 * that is closest to the center of the screen. So if the
3237 * component is on the right part of the screen, the window
3238 * is placed to its left, and vice versa.
3239 * <p>
3240 * If after the window location has been calculated, the upper,
3241 * left, or right edge of the window is out of the screen,
3242 * then the window is located in such a way that the upper,
3243 * left, or right edge of the window coincides with the
3244 * corresponding edge of the screen. If both left and right
3245 * edges of the window are out of the screen, the window is
3246 * placed at the left side of the screen. The similar placement
3247 * will occur if both top and bottom edges are out of the screen.
3248 * In that case, the window is placed at the top side of the screen.
3249 * <p>
3250 * The method changes the geometry-related data. Therefore,
3251 * the native windowing system may ignore such requests, or it may modify
3252 * the requested data, so that the {@code Window} object is placed and sized
3253 * in a way that corresponds closely to the desktop settings.
3254 *
3255 * @param c the component in relation to which the window's location
3256 * is determined
3257 * @see java.awt.GraphicsEnvironment#getCenterPoint
3258 * @since 1.4
3259 */
3260 public void setLocationRelativeTo(Component c) {
3261 // target location
3262 int dx = 0, dy = 0;
3263 // target GC
3264 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3265 Rectangle gcBounds = gc.getBounds();
3266
3267 Dimension windowSize = getSize();
3268
3269 // search a top-level of c
3270 Window componentWindow = SunToolkit.getContainingWindow(c);
3271 if ((c == null) || (componentWindow == null)) {
3272 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3273 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3274 gcBounds = gc.getBounds();
3275 Point centerPoint = ge.getCenterPoint();
3276 dx = centerPoint.x - windowSize.width / 2;
3277 dy = centerPoint.y - windowSize.height / 2;
3278 } else if (!c.isShowing()) {
3279 gc = componentWindow.getGraphicsConfiguration();
3280 gcBounds = gc.getBounds();
3281 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3282 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3283 } else {
3284 gc = componentWindow.getGraphicsConfiguration();
3285 gcBounds = gc.getBounds();
3286 Dimension compSize = c.getSize();
3287 Point compLocation = c.getLocationOnScreen();
3288 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3289 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3290
3291 // Adjust for bottom edge being offscreen
3292 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3293 dy = gcBounds.y + gcBounds.height - windowSize.height;
3294 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3295 dx = compLocation.x + compSize.width;
3296 } else {
3297 dx = compLocation.x - windowSize.width;
3298 }
3299 }
3300 }
3301
3302 // Avoid being placed off the edge of the screen:
3303 // bottom
3304 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3305 dy = gcBounds.y + gcBounds.height - windowSize.height;
3306 }
3307 // top
3308 if (dy < gcBounds.y) {
3309 dy = gcBounds.y;
3310 }
3311 // right
3312 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3313 dx = gcBounds.x + gcBounds.width - windowSize.width;
3314 }
3315 // left
3316 if (dx < gcBounds.x) {
3317 dx = gcBounds.x;
3318 }
3319
3320 setLocation(dx, dy);
3321 }
3322
3323 /**
3324 * Overridden from Component. Top-level Windows should not propagate a
3325 * MouseWheelEvent beyond themselves into their owning Windows.
3326 */
3327 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3328
3329 /**
3330 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3331 */
3332 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3333
3334 /**
3335 * Creates a new strategy for multi-buffering on this component.
3336 * Multi-buffering is useful for rendering performance. This method
3337 * attempts to create the best strategy available with the number of
3338 * buffers supplied. It will always create a {@code BufferStrategy}
3339 * with that number of buffers.
3340 * A page-flipping strategy is attempted first, then a blitting strategy
3341 * using accelerated buffers. Finally, an unaccelerated blitting
3342 * strategy is used.
3343 * <p>
3344 * Each time this method is called,
3345 * the existing buffer strategy for this component is discarded.
3346 * @param numBuffers number of buffers to create
3347 * @exception IllegalArgumentException if numBuffers is less than 1.
3348 * @exception IllegalStateException if the component is not displayable
3349 * @see #isDisplayable
3350 * @see #getBufferStrategy
3351 * @since 1.4
3352 */
3353 public void createBufferStrategy(int numBuffers) {
3354 super.createBufferStrategy(numBuffers);
3355 }
3356
3357 /**
3358 * Creates a new strategy for multi-buffering on this component with the
3359 * required buffer capabilities. This is useful, for example, if only
3360 * accelerated memory or page flipping is desired (as specified by the
3361 * buffer capabilities).
3362 * <p>
3363 * Each time this method
3364 * is called, the existing buffer strategy for this component is discarded.
3365 * @param numBuffers number of buffers to create, including the front buffer
3366 * @param caps the required capabilities for creating the buffer strategy;
3367 * cannot be {@code null}
3368 * @exception AWTException if the capabilities supplied could not be
3369 * supported or met; this may happen, for example, if there is not enough
3370 * accelerated memory currently available, or if page flipping is specified
3371 * but not possible.
3372 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3373 * caps is {@code null}
3374 * @see #getBufferStrategy
3375 * @since 1.4
3376 */
3377 public void createBufferStrategy(int numBuffers,
3378 BufferCapabilities caps) throws AWTException {
3379 super.createBufferStrategy(numBuffers, caps);
3380 }
3381
3382 /**
3383 * Returns the {@code BufferStrategy} used by this component. This
3384 * method will return null if a {@code BufferStrategy} has not yet
3385 * been created or has been disposed.
3386 *
3387 * @return the buffer strategy used by this component
3388 * @see #createBufferStrategy
3389 * @since 1.4
3390 */
3391 public BufferStrategy getBufferStrategy() {
3392 return super.getBufferStrategy();
3393 }
3394
3395 Component getTemporaryLostComponent() {
3396 return temporaryLostComponent;
3397 }
3398 Component setTemporaryLostComponent(Component component) {
3399 Component previousComp = temporaryLostComponent;
3400 // Check that "component" is an acceptable focus owner and don't store it otherwise
3401 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3402 if (component == null || component.canBeFocusOwner()) {
3403 temporaryLostComponent = component;
3404 } else {
3405 temporaryLostComponent = null;
3406 }
3407 return previousComp;
3408 }
3409
3410 /**
3411 * Checks whether this window can contain focus owner.
3412 * Verifies that it is focusable and as container it can container focus owner.
3413 * @since 1.5
3414 */
3415 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3416 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3417 }
3418
3419 private volatile boolean locationByPlatform = locationByPlatformProp;
3420
3421
3422 /**
3423 * Sets whether this Window should appear at the default location for the
3424 * native windowing system or at the current location (returned by
3425 * {@code getLocation}) the next time the Window is made visible.
3426 * This behavior resembles a native window shown without programmatically
3427 * setting its location. Most windowing systems cascade windows if their
3428 * locations are not explicitly set. The actual location is determined once the
3429 * window is shown on the screen.
3430 * <p>
3431 * This behavior can also be enabled by setting the System Property
3432 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3433 * take precedence.
3434 * <p>
3435 * Calls to {@code setVisible}, {@code setLocation} and
3436 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3437 * this property of the Window.
3438 * <p>
3439 * For example, after the following code is executed:
3440 * <pre>
3441 * setLocationByPlatform(true);
3442 * setVisible(true);
3443 * boolean flag = isLocationByPlatform();
3444 * </pre>
3445 * The window will be shown at platform's default location and
3446 * {@code flag} will be {@code false}.
3447 * <p>
3448 * In the following sample:
3449 * <pre>
3450 * setLocationByPlatform(true);
3451 * setLocation(10, 10);
3452 * boolean flag = isLocationByPlatform();
3453 * setVisible(true);
3454 * </pre>
3455 * The window will be shown at (10, 10) and {@code flag} will be
3456 * {@code false}.
3457 *
3458 * @param locationByPlatform {@code true} if this Window should appear
3459 * at the default location, {@code false} if at the current location
3460 * @throws IllegalComponentStateException if the window
3461 * is showing on screen and locationByPlatform is {@code true}.
3462 * @see #setLocation
3463 * @see #isShowing
3464 * @see #setVisible
3465 * @see #isLocationByPlatform
3466 * @see java.lang.System#getProperty(String)
3467 * @since 1.5
3468 */
3469 public void setLocationByPlatform(boolean locationByPlatform) {
3470 synchronized (getTreeLock()) {
3471 if (locationByPlatform && isShowing()) {
3472 throw new IllegalComponentStateException("The window is showing on screen.");
3473 }
3474 this.locationByPlatform = locationByPlatform;
3475 }
3476 }
3477
3478 /**
3479 * Returns {@code true} if this Window will appear at the default location
3480 * for the native windowing system the next time this Window is made visible.
3481 * This method always returns {@code false} if the Window is showing on the
3482 * screen.
3483 *
3484 * @return whether this Window will appear at the default location
3485 * @see #setLocationByPlatform
3486 * @see #isShowing
3487 * @since 1.5
3488 */
3489 public boolean isLocationByPlatform() {
3490 return locationByPlatform;
3491 }
3492
3493 /**
3494 * {@inheritDoc}
3495 * <p>
3496 * The {@code width} or {@code height} values
3497 * are automatically enlarged if either is less than
3498 * the minimum size as specified by previous call to
3499 * {@code setMinimumSize}.
3500 * <p>
3501 * The method changes the geometry-related data. Therefore,
3502 * the native windowing system may ignore such requests, or it may modify
3503 * the requested data, so that the {@code Window} object is placed and sized
3504 * in a way that corresponds closely to the desktop settings.
3505 *
3506 * @see #getBounds
3507 * @see #setLocation(int, int)
3508 * @see #setLocation(Point)
3509 * @see #setSize(int, int)
3510 * @see #setSize(Dimension)
3511 * @see #setMinimumSize
3512 * @see #setLocationByPlatform
3513 * @see #isLocationByPlatform
3514 * @since 1.6
3515 */
3516 public void setBounds(int x, int y, int width, int height) {
3517 synchronized (getTreeLock()) {
3518 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3519 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3520 {
3521 locationByPlatform = false;
3522 }
3523 super.setBounds(x, y, width, height);
3524 }
3525 }
3526
3527 /**
3528 * {@inheritDoc}
3529 * <p>
3530 * The {@code r.width} or {@code r.height} values
3531 * will be automatically enlarged if either is less than
3532 * the minimum size as specified by previous call to
3533 * {@code setMinimumSize}.
3534 * <p>
3535 * The method changes the geometry-related data. Therefore,
3536 * the native windowing system may ignore such requests, or it may modify
3537 * the requested data, so that the {@code Window} object is placed and sized
3538 * in a way that corresponds closely to the desktop settings.
3539 *
3540 * @see #getBounds
3541 * @see #setLocation(int, int)
3542 * @see #setLocation(Point)
3543 * @see #setSize(int, int)
3544 * @see #setSize(Dimension)
3545 * @see #setMinimumSize
3546 * @see #setLocationByPlatform
3547 * @see #isLocationByPlatform
3548 * @since 1.6
3549 */
3550 public void setBounds(Rectangle r) {
3551 setBounds(r.x, r.y, r.width, r.height);
3552 }
3553
3554 /**
3555 * Determines whether this component will be displayed on the screen.
3556 * @return {@code true} if the component and all of its ancestors
3557 * until a toplevel window are visible, {@code false} otherwise
3558 */
3559 boolean isRecursivelyVisible() {
3560 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3561 // We're overriding isRecursivelyVisible to implement this policy.
3562 return visible;
3563 }
3564
3565
3566 // ******************** SHAPES & TRANSPARENCY CODE ********************
3567
3568 /**
3569 * Returns the opacity of the window.
3570 *
3571 * @return the opacity of the window
3572 *
3573 * @see Window#setOpacity(float)
3574 * @see GraphicsDevice.WindowTranslucency
3575 *
3576 * @since 1.7
3577 */
3578 public float getOpacity() {
3579 return opacity;
3580 }
3581
3582 /**
3583 * Sets the opacity of the window.
3584 * <p>
3585 * The opacity value is in the range [0..1]. Note that setting the opacity
3586 * level of 0 may or may not disable the mouse event handling on this
3587 * window. This is a platform-dependent behavior.
3588 * <p>
3589 * The following conditions must be met in order to set the opacity value
3590 * less than {@code 1.0f}:
3591 * <ul>
3592 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3593 * translucency must be supported by the underlying system
3594 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3595 * and {@link Dialog#setUndecorated})
3596 * <li>The window must not be in full-screen mode (see {@link
3597 * GraphicsDevice#setFullScreenWindow(Window)})
3598 * </ul>
3599 * <p>
3600 * If the requested opacity value is less than {@code 1.0f}, and any of the
3601 * above conditions are not met, the window opacity will not change,
3602 * and the {@code IllegalComponentStateException} will be thrown.
3603 * <p>
3604 * The translucency levels of individual pixels may also be effected by the
3605 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3606 * current shape of this window (see {@link #setShape(Shape)}).
3607 *
3608 * @param opacity the opacity level to set to the window
3609 *
3610 * @throws IllegalArgumentException if the opacity is out of the range
3611 * [0..1]
3612 * @throws IllegalComponentStateException if the window is decorated and
3613 * the opacity is less than {@code 1.0f}
3614 * @throws IllegalComponentStateException if the window is in full screen
3615 * mode, and the opacity is less than {@code 1.0f}
3616 * @throws UnsupportedOperationException if the {@code
3617 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3618 * translucency is not supported and the opacity is less than
3619 * {@code 1.0f}
3620 *
3621 * @see Window#getOpacity
3622 * @see Window#setBackground(Color)
3623 * @see Window#setShape(Shape)
3624 * @see Frame#isUndecorated
3625 * @see Dialog#isUndecorated
3626 * @see GraphicsDevice.WindowTranslucency
3627 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3628 *
3629 * @since 1.7
3630 */
3631 @SuppressWarnings("deprecation")
3632 public void setOpacity(float opacity) {
3633 synchronized (getTreeLock()) {
3634 if (opacity < 0.0f || opacity > 1.0f) {
3635 throw new IllegalArgumentException(
3636 "The value of opacity should be in the range [0.0f .. 1.0f].");
3637 }
3638 if (opacity < 1.0f) {
3639 GraphicsConfiguration gc = getGraphicsConfiguration();
3640 GraphicsDevice gd = gc.getDevice();
3641 if (gc.getDevice().getFullScreenWindow() == this) {
3642 throw new IllegalComponentStateException(
3643 "Setting opacity for full-screen window is not supported.");
3644 }
3645 if (!gd.isWindowTranslucencySupported(
3646 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3647 {
3648 throw new UnsupportedOperationException(
3649 "TRANSLUCENT translucency is not supported.");
3650 }
3651 }
3652 this.opacity = opacity;
3653 WindowPeer peer = (WindowPeer) this.peer;
3654 if (peer != null) {
3655 peer.setOpacity(opacity);
3656 }
3657 }
3658 }
3659
3660 /**
3661 * Returns the shape of the window.
3662 *
3663 * The value returned by this method may not be the same as
3664 * previously set with {@code setShape(shape)}, but it is guaranteed
3665 * to represent the same shape.
3666 *
3667 * @return the shape of the window or {@code null} if no
3668 * shape is specified for the window
3669 *
3670 * @see Window#setShape(Shape)
3671 * @see GraphicsDevice.WindowTranslucency
3672 *
3673 * @since 1.7
3674 */
3675 public Shape getShape() {
3676 synchronized (getTreeLock()) {
3677 return shape == null ? null : new Path2D.Float(shape);
3678 }
3679 }
3680
3681 /**
3682 * Sets the shape of the window.
3683 * <p>
3684 * Setting a shape cuts off some parts of the window. Only the parts that
3685 * belong to the given {@link Shape} remain visible and clickable. If
3686 * the shape argument is {@code null}, this method restores the default
3687 * shape, making the window rectangular on most platforms.
3688 * <p>
3689 * The following conditions must be met to set a non-null shape:
3690 * <ul>
3691 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3692 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3693 * underlying system
3694 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3695 * and {@link Dialog#setUndecorated})
3696 * <li>The window must not be in full-screen mode (see {@link
3697 * GraphicsDevice#setFullScreenWindow(Window)})
3698 * </ul>
3699 * <p>
3700 * If the requested shape is not {@code null}, and any of the above
3701 * conditions are not met, the shape of this window will not change,
3702 * and either the {@code UnsupportedOperationException} or {@code
3703 * IllegalComponentStateException} will be thrown.
3704 * <p>
3705 * The translucency levels of individual pixels may also be effected by the
3706 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3707 * opacity value (see {@link #setOpacity(float)}). See {@link
3708 * GraphicsDevice.WindowTranslucency} for more details.
3709 *
3710 * @param shape the shape to set to the window
3711 *
3712 * @throws IllegalComponentStateException if the shape is not {@code
3713 * null} and the window is decorated
3714 * @throws IllegalComponentStateException if the shape is not {@code
3715 * null} and the window is in full-screen mode
3716 * @throws UnsupportedOperationException if the shape is not {@code
3717 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3718 * PERPIXEL_TRANSPARENT} translucency is not supported
3719 *
3720 * @see Window#getShape()
3721 * @see Window#setBackground(Color)
3722 * @see Window#setOpacity(float)
3723 * @see Frame#isUndecorated
3724 * @see Dialog#isUndecorated
3725 * @see GraphicsDevice.WindowTranslucency
3726 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3727 *
3728 * @since 1.7
3729 */
3730 public void setShape(Shape shape) {
3731 synchronized (getTreeLock()) {
3732 if (shape != null) {
3733 GraphicsConfiguration gc = getGraphicsConfiguration();
3734 GraphicsDevice gd = gc.getDevice();
3735 if (gc.getDevice().getFullScreenWindow() == this) {
3736 throw new IllegalComponentStateException(
3737 "Setting shape for full-screen window is not supported.");
3738 }
3739 if (!gd.isWindowTranslucencySupported(
3740 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3741 {
3742 throw new UnsupportedOperationException(
3743 "PERPIXEL_TRANSPARENT translucency is not supported.");
3744 }
3745 }
3746 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3747 WindowPeer peer = (WindowPeer) this.peer;
3748 if (peer != null) {
3749 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3750 }
3751 }
3752 }
3753
3754 /**
3755 * Gets the background color of this window.
3756 * <p>
3757 * Note that the alpha component of the returned color indicates whether
3758 * the window is in the non-opaque (per-pixel translucent) mode.
3759 *
3760 * @return this component's background color
3761 *
3762 * @see Window#setBackground(Color)
3763 * @see Window#isOpaque
3764 * @see GraphicsDevice.WindowTranslucency
3765 */
3766 @Override
3767 public Color getBackground() {
3768 return super.getBackground();
3769 }
3770
3771 /**
3772 * Sets the background color of this window.
3773 * <p>
3774 * If the windowing system supports the {@link
3775 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3776 * translucency, the alpha component of the given background color
3777 * may effect the mode of operation for this window: it indicates whether
3778 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3779 * (alpha is less than {@code 1.0f}). If the given background color is
3780 * {@code null}, the window is considered completely opaque.
3781 * <p>
3782 * All the following conditions must be met to enable the per-pixel
3783 * transparency mode for this window:
3784 * <ul>
3785 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3786 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3787 * device where this window is located
3788 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3789 * and {@link Dialog#setUndecorated})
3790 * <li>The window must not be in full-screen mode (see {@link
3791 * GraphicsDevice#setFullScreenWindow(Window)})
3792 * </ul>
3793 * <p>
3794 * If the alpha component of the requested background color is less than
3795 * {@code 1.0f}, and any of the above conditions are not met, the background
3796 * color of this window will not change, the alpha component of the given
3797 * background color will not affect the mode of operation for this window,
3798 * and either the {@code UnsupportedOperationException} or {@code
3799 * IllegalComponentStateException} will be thrown.
3800 * <p>
3801 * When the window is per-pixel translucent, the drawing sub-system
3802 * respects the alpha value of each individual pixel. If a pixel gets
3803 * painted with the alpha color component equal to zero, it becomes
3804 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3805 * pixel is fully opaque. Interim values of the alpha color component make
3806 * the pixel semi-transparent. In this mode, the background of the window
3807 * gets painted with the alpha value of the given background color. If the
3808 * alpha value of the argument of this method is equal to {@code 0}, the
3809 * background is not painted at all.
3810 * <p>
3811 * The actual level of translucency of a given pixel also depends on window
3812 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3813 * this window (see {@link #setShape(Shape)}).
3814 * <p>
3815 * Note that painting a pixel with the alpha value of {@code 0} may or may
3816 * not disable the mouse event handling on this pixel. This is a
3817 * platform-dependent behavior. To make sure the mouse events do not get
3818 * dispatched to a particular pixel, the pixel must be excluded from the
3819 * shape of the window.
3820 * <p>
3821 * Enabling the per-pixel translucency mode may change the graphics
3822 * configuration of this window due to the native platform requirements.
3823 *
3824 * @param bgColor the color to become this window's background color.
3825 *
3826 * @throws IllegalComponentStateException if the alpha value of the given
3827 * background color is less than {@code 1.0f} and the window is decorated
3828 * @throws IllegalComponentStateException if the alpha value of the given
3829 * background color is less than {@code 1.0f} and the window is in
3830 * full-screen mode
3831 * @throws UnsupportedOperationException if the alpha value of the given
3832 * background color is less than {@code 1.0f} and {@link
3833 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3834 * PERPIXEL_TRANSLUCENT} translucency is not supported
3835 *
3836 * @see Window#getBackground
3837 * @see Window#isOpaque
3838 * @see Window#setOpacity(float)
3839 * @see Window#setShape(Shape)
3840 * @see Frame#isUndecorated
3841 * @see Dialog#isUndecorated
3842 * @see GraphicsDevice.WindowTranslucency
3843 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3844 * @see GraphicsConfiguration#isTranslucencyCapable()
3845 */
3846 @Override
3847 public void setBackground(Color bgColor) {
3848 Color oldBg = getBackground();
3849 super.setBackground(bgColor);
3850 if (oldBg != null && oldBg.equals(bgColor)) {
3851 return;
3852 }
3853 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3854 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3855 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3856 GraphicsConfiguration gc = getGraphicsConfiguration();
3857 GraphicsDevice gd = gc.getDevice();
3858 if (gc.getDevice().getFullScreenWindow() == this) {
3859 throw new IllegalComponentStateException(
3860 "Making full-screen window non opaque is not supported.");
3861 }
3862 if (!gc.isTranslucencyCapable()) {
3863 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3864 if (capableGC == null) {
3865 throw new UnsupportedOperationException(
3866 "PERPIXEL_TRANSLUCENT translucency is not supported");
3867 }
3868 setGraphicsConfiguration(capableGC);
3869 }
3870 setLayersOpaque(this, false);
3871 } else if ((oldAlpha < 255) && (alpha == 255)) {
3872 setLayersOpaque(this, true);
3873 }
3874 WindowPeer peer = (WindowPeer) this.peer;
3875 if (peer != null) {
3876 peer.setOpaque(alpha == 255);
3877 }
3878 }
3879
3880 /**
3881 * Indicates if the window is currently opaque.
3882 * <p>
3883 * The method returns {@code false} if the background color of the window
3884 * is not {@code null} and the alpha component of the color is less than
3885 * {@code 1.0f}. The method returns {@code true} otherwise.
3886 *
3887 * @return {@code true} if the window is opaque, {@code false} otherwise
3888 *
3889 * @see Window#getBackground
3890 * @see Window#setBackground(Color)
3891 * @since 1.7
3892 */
3893 @Override
3894 public boolean isOpaque() {
3895 Color bg = getBackground();
3896 return bg != null ? bg.getAlpha() == 255 : true;
3897 }
3898
3899 private void updateWindow() {
3900 synchronized (getTreeLock()) {
3901 WindowPeer peer = (WindowPeer) this.peer;
3902 if (peer != null) {
3903 peer.updateWindow();
3904 }
3905 }
3906 }
3907
3908 /**
3909 * {@inheritDoc}
3910 *
3911 * @since 1.7
3912 */
3913 @Override
3914 public void paint(Graphics g) {
3915 if (!isOpaque()) {
3916 Graphics gg = g.create();
3917 try {
3918 if (gg instanceof Graphics2D) {
3919 gg.setColor(getBackground());
3920 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3921 gg.fillRect(0, 0, getWidth(), getHeight());
3922 }
3923 } finally {
3924 gg.dispose();
3925 }
3926 }
3927 super.paint(g);
3928 }
3929
3930 private static void setLayersOpaque(Component component, boolean isOpaque) {
3931 // Shouldn't use instanceof to avoid loading Swing classes
3932 // if it's a pure AWT application.
3933 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3934 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3935 javax.swing.JRootPane root = rpc.getRootPane();
3936 javax.swing.JLayeredPane lp = root.getLayeredPane();
3937 Container c = root.getContentPane();
3938 javax.swing.JComponent content =
3939 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3940 lp.setOpaque(isOpaque);
3941 root.setOpaque(isOpaque);
3942 if (content != null) {
3943 content.setOpaque(isOpaque);
3944
3945 // Iterate down one level to see whether we have a JApplet
3946 // (which is also a RootPaneContainer) which requires processing
3947 int numChildren = content.getComponentCount();
3948 if (numChildren > 0) {
3949 Component child = content.getComponent(0);
3950 // It's OK to use instanceof here because we've
3951 // already loaded the RootPaneContainer class by now
3952 if (child instanceof javax.swing.RootPaneContainer) {
3953 setLayersOpaque(child, isOpaque);
3954 }
3955 }
3956 }
3957 }
3958 }
3959
3960
3961 // ************************** MIXING CODE *******************************
3962
3963 // A window has an owner, but it does NOT have a container
3964 @Override
3965 final Container getContainer() {
3966 return null;
3967 }
3968
3969 /**
3970 * Applies the shape to the component
3971 * @param shape Shape to be applied to the component
3972 */
3973 @Override
3974 final void applyCompoundShape(Region shape) {
3975 // The shape calculated by mixing code is not intended to be applied
3976 // to windows or frames
3977 }
3978
3979 @Override
3980 final void applyCurrentShape() {
3981 // The shape calculated by mixing code is not intended to be applied
3982 // to windows or frames
3983 }
3984
3985 @Override
3986 final void mixOnReshaping() {
3987 // The shape calculated by mixing code is not intended to be applied
3988 // to windows or frames
3989 }
3990
3991 @Override
3992 final Point getLocationOnWindow() {
3993 return new Point(0, 0);
3994 }
3995
3996 // ****************** END OF MIXING CODE ********************************
3997
3998 /**
3999 * Limit the given double value with the given range.
4000 */
4001 private static double limit(double value, double min, double max) {
4002 value = Math.max(value, min);
4003 value = Math.min(value, max);
4004 return value;
4005 }
4006
4007 /**
4008 * Calculate the position of the security warning.
4009 *
4010 * This method gets the window location/size as reported by the native
4011 * system since the locally cached values may represent outdated data.
4012 *
4013 * The method is used from the native code, or via AWTAccessor.
4014 *
4015 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4016 * supposed to become public/user-overridable.
4017 */
4018 private Point2D calculateSecurityWarningPosition(double x, double y,
4019 double w, double h)
4020 {
4021 // The desired location for the security warning
4022 double wx = x + w * RIGHT_ALIGNMENT + 2.0;
4023 double wy = y + h * TOP_ALIGNMENT + 0.0;
4024
4025 // First, make sure the warning is not too far from the window bounds
4026 wx = Window.limit(wx,
4027 x - securityWarningWidth - 2,
4028 x + w + 2);
4029 wy = Window.limit(wy,
4030 y - securityWarningHeight - 2,
4031 y + h + 2);
4032
4033 // Now make sure the warning window is visible on the screen
4034 GraphicsConfiguration graphicsConfig =
4035 getGraphicsConfiguration_NoClientCode();
4036 Rectangle screenBounds = graphicsConfig.getBounds();
4037 Insets screenInsets =
4038 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4039
4040 wx = Window.limit(wx,
4041 screenBounds.x + screenInsets.left,
4042 screenBounds.x + screenBounds.width - screenInsets.right
4043 - securityWarningWidth);
4044 wy = Window.limit(wy,
4045 screenBounds.y + screenInsets.top,
4046 screenBounds.y + screenBounds.height - screenInsets.bottom
4047 - securityWarningHeight);
4048
4049 return new Point2D.Double(wx, wy);
4050 }
4051
4052 static {
4053 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4054 public void updateWindow(Window window) {
4055 window.updateWindow();
4056 }
4057
4058 public void setSecurityWarningSize(Window window, int width, int height)
4059 {
4060 window.securityWarningWidth = width;
4061 window.securityWarningHeight = height;
4062 }
4063
4064 public Point2D calculateSecurityWarningPosition(Window window,
4065 double x, double y, double w, double h)
4066 {
4067 return window.calculateSecurityWarningPosition(x, y, w, h);
4068 }
4069
4070 public void setLWRequestStatus(Window changed, boolean status) {
4071 changed.syncLWRequests = status;
4072 }
4073
4074 public boolean isAutoRequestFocus(Window w) {
4075 return w.autoRequestFocus;
4076 }
4077
4078 public boolean isTrayIconWindow(Window w) {
4079 return w.isTrayIconWindow;
4080 }
4081
4082 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4083 w.isTrayIconWindow = isTrayIconWindow;
4084 }
4085
4086 public Window[] getOwnedWindows(Window w) {
4087 return w.getOwnedWindows_NoClientCode();
4088 }
4089 }); // WindowAccessor
4090 } // static
4091
4092 // a window doesn't need to be updated in the Z-order.
4093 @Override
4094 void updateZOrder() {}
4095
4096 } // class Window
4097
4098
4099 /**
4100 * This class is no longer used, but is maintained for Serialization
4101 * backward-compatibility.
4102 */
4103 class FocusManager implements java.io.Serializable {
4104 Container focusRoot;
4105 Component focusOwner;
4106
4107 /*
4108 * JDK 1.1 serialVersionUID
4109 */
4110 static final long serialVersionUID = 2491878825643557906L;
4111 }