1 /*
2 * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.awt;
26
27 import java.awt.event.*;
28 import java.awt.geom.Path2D;
29 import java.awt.geom.Point2D;
30 import java.awt.im.InputContext;
31 import java.awt.image.BufferStrategy;
32 import java.awt.image.BufferedImage;
33 import java.awt.peer.ComponentPeer;
34 import java.awt.peer.WindowPeer;
35 import java.beans.PropertyChangeListener;
36 import java.io.IOException;
37 import java.io.ObjectInputStream;
38 import java.io.ObjectOutputStream;
39 import java.io.OptionalDataException;
40 import java.io.Serializable;
41 import java.lang.ref.WeakReference;
42 import java.lang.reflect.InvocationTargetException;
43 import java.security.AccessController;
44 import java.util.ArrayList;
45 import java.util.Arrays;
46 import java.util.EventListener;
47 import java.util.Locale;
48 import java.util.ResourceBundle;
49 import java.util.Set;
50 import java.util.Vector;
51 import java.util.concurrent.atomic.AtomicBoolean;
52 import javax.accessibility.*;
53 import sun.awt.AWTAccessor;
54 import sun.awt.AppContext;
55 import sun.awt.CausedFocusEvent;
56 import sun.awt.SunToolkit;
57 import sun.awt.util.IdentityArrayList;
58 import sun.java2d.Disposer;
59 import sun.java2d.pipe.Region;
60 import sun.security.action.GetPropertyAction;
61 import sun.security.util.SecurityConstants;
62 import sun.util.logging.PlatformLogger;
63
64 /**
65 * A {@code Window} object is a top-level window with no borders and no
66 * menubar.
67 * The default layout for a window is {@code BorderLayout}.
68 * <p>
69 * A window must have either a frame, dialog, or another window defined as its
70 * owner when it's constructed.
71 * <p>
72 * In a multi-screen environment, you can create a {@code Window}
73 * on a different screen device by constructing the {@code Window}
74 * with {@link #Window(Window, GraphicsConfiguration)}. The
75 * {@code GraphicsConfiguration} object is one of the
76 * {@code GraphicsConfiguration} objects of the target screen device.
77 * <p>
78 * In a virtual device multi-screen environment in which the desktop
79 * area could span multiple physical screen devices, the bounds of all
80 * configurations are relative to the virtual device coordinate system.
81 * The origin of the virtual-coordinate system is at the upper left-hand
82 * corner of the primary physical screen. Depending on the location of
83 * the primary screen in the virtual device, negative coordinates are
84 * possible, as shown in the following figure.
85 * <p>
86 * <img src="doc-files/MultiScreen.gif"
87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
88 * ALIGN=center HSPACE=10 VSPACE=7>
89 * <p>
90 * In such an environment, when calling {@code setLocation},
91 * you must pass a virtual coordinate to this method. Similarly,
92 * calling {@code getLocationOnScreen} on a {@code Window} returns
93 * virtual device coordinates. Call the {@code getBounds} method
94 * of a {@code GraphicsConfiguration} to find its origin in the virtual
95 * coordinate system.
96 * <p>
97 * The following code sets the location of a {@code Window}
98 * at (10, 10) relative to the origin of the physical screen
99 * of the corresponding {@code GraphicsConfiguration}. If the
100 * bounds of the {@code GraphicsConfiguration} is not taken
101 * into account, the {@code Window} location would be set
102 * at (10, 10) relative to the virtual-coordinate system and would appear
103 * on the primary physical screen, which might be different from the
104 * physical screen of the specified {@code GraphicsConfiguration}.
105 *
106 * <pre>
107 * Window w = new Window(Window owner, GraphicsConfiguration gc);
108 * Rectangle bounds = gc.getBounds();
109 * w.setLocation(10 + bounds.x, 10 + bounds.y);
110 * </pre>
111 *
112 * <p>
113 * Note: the location and size of top-level windows (including
114 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
115 * are under the control of the desktop's window management system.
116 * Calls to {@code setLocation}, {@code setSize}, and
117 * {@code setBounds} are requests (not directives) which are
118 * forwarded to the window management system. Every effort will be
119 * made to honor such requests. However, in some cases the window
120 * management system may ignore such requests, or modify the requested
121 * geometry in order to place and size the {@code Window} in a way
122 * that more closely matches the desktop settings.
123 * <p>
124 * Due to the asynchronous nature of native event handling, the results
125 * returned by {@code getBounds}, {@code getLocation},
126 * {@code getLocationOnScreen}, and {@code getSize} might not
127 * reflect the actual geometry of the Window on screen until the last
128 * request has been processed. During the processing of subsequent
129 * requests these values might change accordingly while the window
130 * management system fulfills the requests.
131 * <p>
132 * An application may set the size and location of an invisible
133 * {@code Window} arbitrarily, but the window management system may
134 * subsequently change its size and/or location when the
135 * {@code Window} is made visible. One or more {@code ComponentEvent}s
136 * will be generated to indicate the new geometry.
137 * <p>
138 * Windows are capable of generating the following WindowEvents:
139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
140 *
141 * @author Sami Shaio
142 * @author Arthur van Hoff
143 * @see WindowEvent
144 * @see #addWindowListener
145 * @see java.awt.BorderLayout
146 * @since JDK1.0
147 */
148 public class Window extends Container implements Accessible {
149
150 /**
151 * Enumeration of available <i>window types</i>.
152 *
153 * A window type defines the generic visual appearance and behavior of a
154 * top-level window. For example, the type may affect the kind of
155 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
156 * <p>
157 * Some platforms may not fully support a certain window type. Depending on
158 * the level of support, some properties of the window type may be
159 * disobeyed.
160 *
161 * @see #getType
162 * @see #setType
163 * @since 1.7
164 */
165 public static enum Type {
166 /**
167 * Represents a <i>normal</i> window.
168 *
169 * This is the default type for objects of the {@code Window} class or
170 * its descendants. Use this type for regular top-level windows.
171 */
172 NORMAL,
173
174 /**
175 * Represents a <i>utility</i> window.
176 *
177 * A utility window is usually a small window such as a toolbar or a
178 * palette. The native system may render the window with smaller
179 * title-bar if the window is either a {@code Frame} or a {@code
180 * Dialog} object, and if it has its decorations enabled.
181 */
182 UTILITY,
183
184 /**
185 * Represents a <i>popup</i> window.
186 *
187 * A popup window is a temporary window such as a drop-down menu or a
188 * tooltip. On some platforms, windows of that type may be forcibly
189 * made undecorated even if they are instances of the {@code Frame} or
190 * {@code Dialog} class, and have decorations enabled.
191 */
192 POPUP
193 }
194
195 /**
196 * This represents the warning message that is
197 * to be displayed in a non secure window. ie :
198 * a window that has a security manager installed that denies
199 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
200 * This message can be displayed anywhere in the window.
201 *
202 * @serial
203 * @see #getWarningString
204 */
205 String warningString;
206
207 /**
208 * {@code icons} is the graphical way we can
209 * represent the frames and dialogs.
210 * {@code Window} can't display icon but it's
211 * being inherited by owned {@code Dialog}s.
212 *
213 * @serial
214 * @see #getIconImages
215 * @see #setIconImages(List<? extends Image>)
216 */
217 transient java.util.List<Image> icons;
218
219 /**
220 * Holds the reference to the component which last had focus in this window
221 * before it lost focus.
222 */
223 private transient Component temporaryLostComponent;
224
225 static boolean systemSyncLWRequests = false;
226 boolean syncLWRequests = false;
227 transient boolean beforeFirstShow = true;
228 private transient boolean disposing = false;
229
230 static final int OPENED = 0x01;
231
232 /**
233 * An Integer value representing the Window State.
234 *
235 * @serial
236 * @since 1.2
237 * @see #show
238 */
239 int state;
240
241 /**
242 * A boolean value representing Window always-on-top state
243 * @since 1.5
244 * @serial
245 * @see #setAlwaysOnTop
246 * @see #isAlwaysOnTop
247 */
248 private boolean alwaysOnTop;
249
250 /**
251 * Contains all the windows that have a peer object associated,
252 * i. e. between addNotify() and removeNotify() calls. The list
253 * of all Window instances can be obtained from AppContext object.
254 *
255 * @since 1.6
256 */
257 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
258
259 /**
260 * A vector containing all the windows this
261 * window currently owns.
262 * @since 1.2
263 * @see #getOwnedWindows
264 */
265 transient Vector<WeakReference<Window>> ownedWindowList =
266 new Vector<WeakReference<Window>>();
267
268 /*
269 * We insert a weak reference into the Vector of all Windows in AppContext
270 * instead of 'this' so that garbage collection can still take place
271 * correctly.
272 */
273 private transient WeakReference<Window> weakThis;
274
275 transient boolean showWithParent;
276
277 /**
278 * Contains the modal dialog that blocks this window, or null
279 * if the window is unblocked.
280 *
281 * @since 1.6
282 */
283 transient Dialog modalBlocker;
284
285 /**
286 * @serial
287 *
288 * @see java.awt.Dialog.ModalExclusionType
289 * @see #getModalExclusionType
290 * @see #setModalExclusionType
291 *
292 * @since 1.6
293 */
294 Dialog.ModalExclusionType modalExclusionType;
295
296 transient WindowListener windowListener;
297 transient WindowStateListener windowStateListener;
298 transient WindowFocusListener windowFocusListener;
299
300 transient InputContext inputContext;
301 private transient Object inputContextLock = new Object();
302
303 /**
304 * Unused. Maintained for serialization backward-compatibility.
305 *
306 * @serial
307 * @since 1.2
308 */
309 private FocusManager focusMgr;
310
311 /**
312 * Indicates whether this Window can become the focused Window.
313 *
314 * @serial
315 * @see #getFocusableWindowState
316 * @see #setFocusableWindowState
317 * @since 1.4
318 */
319 private boolean focusableWindowState = true;
320
321 /**
322 * Indicates whether this window should receive focus on
323 * subsequently being shown (with a call to {@code setVisible(true)}), or
324 * being moved to the front (with a call to {@code toFront()}).
325 *
326 * @serial
327 * @see #setAutoRequestFocus
328 * @see #isAutoRequestFocus
329 * @since 1.7
330 */
331 private volatile boolean autoRequestFocus = true;
332
333 /*
334 * Indicates that this window is being shown. This flag is set to true at
335 * the beginning of show() and to false at the end of show().
336 *
337 * @see #show()
338 * @see Dialog#shouldBlock
339 */
340 transient boolean isInShow = false;
341
342 /**
343 * The opacity level of the window
344 *
345 * @serial
346 * @see #setOpacity(float)
347 * @see #getOpacity()
348 * @since 1.7
349 */
350 private float opacity = 1.0f;
351
352 /**
353 * The shape assigned to this window. This field is set to {@code null} if
354 * no shape is set (rectangular window).
355 *
356 * @serial
357 * @see #getShape()
358 * @see #setShape(Shape)
359 * @since 1.7
360 */
361 private Shape shape = null;
362
363 private static final String base = "win";
364 private static int nameCounter = 0;
365
366 /*
367 * JDK 1.1 serialVersionUID
368 */
369 private static final long serialVersionUID = 4497834738069338734L;
370
371 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
372
373 private static final boolean locationByPlatformProp;
374
375 transient boolean isTrayIconWindow = false;
376
377 /**
378 * These fields are initialized in the native peer code
379 * or via AWTAccessor's WindowAccessor.
380 */
381 private transient volatile int securityWarningWidth = 0;
382 private transient volatile int securityWarningHeight = 0;
383
384 /**
385 * These fields represent the desired location for the security
386 * warning if this window is untrusted.
387 * See com.sun.awt.SecurityWarning for more details.
388 */
389 private transient double securityWarningPointX = 2.0;
390 private transient double securityWarningPointY = 0.0;
391 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
392 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
393
394 static {
395 /* ensure that the necessary native libraries are loaded */
396 Toolkit.loadLibraries();
397 if (!GraphicsEnvironment.isHeadless()) {
398 initIDs();
399 }
400
401 String s = java.security.AccessController.doPrivileged(
402 new GetPropertyAction("java.awt.syncLWRequests"));
403 systemSyncLWRequests = (s != null && s.equals("true"));
404 s = java.security.AccessController.doPrivileged(
405 new GetPropertyAction("java.awt.Window.locationByPlatform"));
406 locationByPlatformProp = (s != null && s.equals("true"));
407 }
408
409 /**
410 * Initialize JNI field and method IDs for fields that may be
411 accessed from C.
412 */
413 private static native void initIDs();
414
415 /**
416 * Constructs a new, initially invisible window in default size with the
417 * specified {@code GraphicsConfiguration}.
418 * <p>
419 * If there is a security manager, then it is invoked to check
420 * {@code AWTPermission("showWindowWithoutWarningBanner")}
421 * to determine whether or not the window must be displayed with
422 * a warning banner.
423 *
424 * @param gc the {@code GraphicsConfiguration} of the target screen
425 * device. If {@code gc} is {@code null}, the system default
426 * {@code GraphicsConfiguration} is assumed
427 * @exception IllegalArgumentException if {@code gc}
428 * is not from a screen device
429 * @exception HeadlessException when
430 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
431 *
432 * @see java.awt.GraphicsEnvironment#isHeadless
433 */
434 Window(GraphicsConfiguration gc) {
435 init(gc);
436 }
437
438 transient Object anchor = new Object();
439 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
440 final WeakReference<Window> owner;
441 final WeakReference<Window> weakThis;
442 final WeakReference<AppContext> context;
443 WindowDisposerRecord(AppContext context, Window victim) {
444 owner = new WeakReference<Window>(victim.getOwner());
445 weakThis = victim.weakThis;
446 this.context = new WeakReference<AppContext>(context);
447 }
448 public void dispose() {
449 Window parent = owner.get();
450 if (parent != null) {
451 parent.removeOwnedWindow(weakThis);
452 }
453 AppContext ac = context.get();
454 if (null != ac) {
455 Window.removeFromWindowList(ac, weakThis);
456 }
457 }
458 }
459
460 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
461 GraphicsEnvironment.checkHeadless();
462
463 if (gc == null) {
464 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
465 getDefaultScreenDevice().getDefaultConfiguration();
466 }
467 setGraphicsConfiguration(gc);
468
469 return gc;
470 }
471
472 private void init(GraphicsConfiguration gc) {
473 GraphicsEnvironment.checkHeadless();
474
475 syncLWRequests = systemSyncLWRequests;
476
477 weakThis = new WeakReference<Window>(this);
478 addToWindowList();
479
480 setWarningString();
481 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
482 this.visible = false;
483
484 gc = initGC(gc);
485
486 if (gc.getDevice().getType() !=
487 GraphicsDevice.TYPE_RASTER_SCREEN) {
488 throw new IllegalArgumentException("not a screen device");
489 }
490 setLayout(new BorderLayout());
491
492 /* offset the initial location with the original of the screen */
493 /* and any insets */
494 Rectangle screenBounds = gc.getBounds();
495 Insets screenInsets = getToolkit().getScreenInsets(gc);
496 int x = getX() + screenBounds.x + screenInsets.left;
497 int y = getY() + screenBounds.y + screenInsets.top;
498 if (x != this.x || y != this.y) {
499 setLocation(x, y);
500 /* reset after setLocation */
501 setLocationByPlatform(locationByPlatformProp);
502 }
503
504 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
505
506 SunToolkit.checkAndSetPolicy(this);
507 }
508
509 /**
510 * Constructs a new, initially invisible window in the default size.
511 * <p>
512 * If there is a security manager set, it is invoked to check
513 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
514 * If that check fails with a {@code SecurityException} then a warning
515 * banner is created.
516 *
517 * @exception HeadlessException when
518 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
519 *
520 * @see java.awt.GraphicsEnvironment#isHeadless
521 */
522 Window() throws HeadlessException {
523 GraphicsEnvironment.checkHeadless();
524 init((GraphicsConfiguration)null);
525 }
526
527 /**
528 * Constructs a new, initially invisible window with the specified
529 * {@code Frame} as its owner. The window will not be focusable
530 * unless its owner is showing on the screen.
531 * <p>
532 * If there is a security manager set, it is invoked to check
533 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
534 * If that check fails with a {@code SecurityException} then a warning
535 * banner is created.
536 *
537 * @param owner the {@code Frame} to act as owner or {@code null}
538 * if this window has no owner
539 * @exception IllegalArgumentException if the {@code owner}'s
540 * {@code GraphicsConfiguration} is not from a screen device
541 * @exception HeadlessException when
542 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
543 *
544 * @see java.awt.GraphicsEnvironment#isHeadless
545 * @see #isShowing
546 */
547 public Window(Frame owner) {
548 this(owner == null ? (GraphicsConfiguration)null :
549 owner.getGraphicsConfiguration());
550 ownedInit(owner);
551 }
552
553 /**
554 * Constructs a new, initially invisible window with the specified
555 * {@code Window} as its owner. This window will not be focusable
556 * unless its nearest owning {@code Frame} or {@code Dialog}
557 * is showing on the screen.
558 * <p>
559 * If there is a security manager set, it is invoked to check
560 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
561 * If that check fails with a {@code SecurityException} then a
562 * warning banner is created.
563 *
564 * @param owner the {@code Window} to act as owner or
565 * {@code null} if this window has no owner
566 * @exception IllegalArgumentException if the {@code owner}'s
567 * {@code GraphicsConfiguration} is not from a screen device
568 * @exception HeadlessException when
569 * {@code GraphicsEnvironment.isHeadless()} returns
570 * {@code true}
571 *
572 * @see java.awt.GraphicsEnvironment#isHeadless
573 * @see #isShowing
574 *
575 * @since 1.2
576 */
577 public Window(Window owner) {
578 this(owner == null ? (GraphicsConfiguration)null :
579 owner.getGraphicsConfiguration());
580 ownedInit(owner);
581 }
582
583 /**
584 * Constructs a new, initially invisible window with the specified owner
585 * {@code Window} and a {@code GraphicsConfiguration}
586 * of a screen device. The Window will not be focusable unless
587 * its nearest owning {@code Frame} or {@code Dialog}
588 * is showing on the screen.
589 * <p>
590 * If there is a security manager set, it is invoked to check
591 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
592 * check fails with a {@code SecurityException} then a warning banner
593 * is created.
594 *
595 * @param owner the window to act as owner or {@code null}
596 * if this window has no owner
597 * @param gc the {@code GraphicsConfiguration} of the target
598 * screen device; if {@code gc} is {@code null},
599 * the system default {@code GraphicsConfiguration} is assumed
600 * @exception IllegalArgumentException if {@code gc}
601 * is not from a screen device
602 * @exception HeadlessException when
603 * {@code GraphicsEnvironment.isHeadless()} returns
604 * {@code true}
605 *
606 * @see java.awt.GraphicsEnvironment#isHeadless
607 * @see GraphicsConfiguration#getBounds
608 * @see #isShowing
609 * @since 1.3
610 */
611 public Window(Window owner, GraphicsConfiguration gc) {
612 this(gc);
613 ownedInit(owner);
614 }
615
616 private void ownedInit(Window owner) {
617 this.parent = owner;
618 if (owner != null) {
619 owner.addOwnedWindow(weakThis);
620 }
621
622 // Fix for 6758673: this call is moved here from init(gc), because
623 // WindowDisposerRecord requires a proper value of parent field.
624 Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this));
625 }
626
627 /**
628 * Construct a name for this component. Called by getName() when the
629 * name is null.
630 */
631 String constructComponentName() {
632 synchronized (Window.class) {
633 return base + nameCounter++;
634 }
635 }
636
637 /**
638 * Returns the sequence of images to be displayed as the icon for this window.
639 * <p>
640 * This method returns a copy of the internally stored list, so all operations
641 * on the returned object will not affect the window's behavior.
642 *
643 * @return the copy of icon images' list for this window, or
644 * empty list if this window doesn't have icon images.
645 * @see #setIconImages
646 * @see #setIconImage(Image)
647 * @since 1.6
648 */
649 public java.util.List<Image> getIconImages() {
650 java.util.List<Image> icons = this.icons;
651 if (icons == null || icons.size() == 0) {
652 return new ArrayList<Image>();
653 }
654 return new ArrayList<Image>(icons);
655 }
656
657 /**
658 * Sets the sequence of images to be displayed as the icon
659 * for this window. Subsequent calls to {@code getIconImages} will
660 * always return a copy of the {@code icons} list.
661 * <p>
662 * Depending on the platform capabilities one or several images
663 * of different dimensions will be used as the window's icon.
664 * <p>
665 * The {@code icons} list is scanned for the images of most
666 * appropriate dimensions from the beginning. If the list contains
667 * several images of the same size, the first will be used.
668 * <p>
669 * Ownerless windows with no icon specified use platfrom-default icon.
670 * The icon of an owned window may be inherited from the owner
671 * unless explicitly overridden.
672 * Setting the icon to {@code null} or empty list restores
673 * the default behavior.
674 * <p>
675 * Note : Native windowing systems may use different images of differing
676 * dimensions to represent a window, depending on the context (e.g.
677 * window decoration, window list, taskbar, etc.). They could also use
678 * just a single image for all contexts or no image at all.
679 *
680 * @param icons the list of icon images to be displayed.
681 * @see #getIconImages()
682 * @see #setIconImage(Image)
683 * @since 1.6
684 */
685 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
686 this.icons = (icons == null) ? new ArrayList<Image>() :
687 new ArrayList<Image>(icons);
688 WindowPeer peer = (WindowPeer)this.peer;
689 if (peer != null) {
690 peer.updateIconImages();
691 }
692 // Always send a property change event
693 firePropertyChange("iconImage", null, null);
694 }
695
696 /**
697 * Sets the image to be displayed as the icon for this window.
698 * <p>
699 * This method can be used instead of {@link #setIconImages setIconImages()}
700 * to specify a single image as a window's icon.
701 * <p>
702 * The following statement:
703 * <pre>
704 * setIconImage(image);
705 * </pre>
706 * is equivalent to:
707 * <pre>
708 * ArrayList<Image> imageList = new ArrayList<Image>();
709 * imageList.add(image);
710 * setIconImages(imageList);
711 * </pre>
712 * <p>
713 * Note : Native windowing systems may use different images of differing
714 * dimensions to represent a window, depending on the context (e.g.
715 * window decoration, window list, taskbar, etc.). They could also use
716 * just a single image for all contexts or no image at all.
717 *
718 * @param image the icon image to be displayed.
719 * @see #setIconImages
720 * @see #getIconImages()
721 * @since 1.6
722 */
723 public void setIconImage(Image image) {
724 ArrayList<Image> imageList = new ArrayList<Image>();
725 if (image != null) {
726 imageList.add(image);
727 }
728 setIconImages(imageList);
729 }
730
731 /**
732 * Makes this Window displayable by creating the connection to its
733 * native screen resource.
734 * This method is called internally by the toolkit and should
735 * not be called directly by programs.
736 * @see Component#isDisplayable
737 * @see Container#removeNotify
738 * @since JDK1.0
739 */
740 public void addNotify() {
741 synchronized (getTreeLock()) {
742 Container parent = this.parent;
743 if (parent != null && parent.getPeer() == null) {
744 parent.addNotify();
745 }
746 if (peer == null) {
747 peer = getToolkit().createWindow(this);
748 }
749 synchronized (allWindows) {
750 allWindows.add(this);
751 }
752 super.addNotify();
753 }
754 }
755
756 /**
757 * {@inheritDoc}
758 */
759 public void removeNotify() {
760 synchronized (getTreeLock()) {
761 synchronized (allWindows) {
762 allWindows.remove(this);
763 }
764 super.removeNotify();
765 }
766 }
767
768 /**
769 * Causes this Window to be sized to fit the preferred size
770 * and layouts of its subcomponents. The resulting width and
771 * height of the window are automatically enlarged if either
772 * of dimensions is less than the minimum size as specified
773 * by the previous call to the {@code setMinimumSize} method.
774 * <p>
775 * If the window and/or its owner are not displayable yet,
776 * both of them are made displayable before calculating
777 * the preferred size. The Window is validated after its
778 * size is being calculated.
779 *
780 * @see Component#isDisplayable
781 * @see #setMinimumSize
782 */
783 public void pack() {
784 Container parent = this.parent;
785 if (parent != null && parent.getPeer() == null) {
786 parent.addNotify();
787 }
788 if (peer == null) {
789 addNotify();
790 }
791 Dimension newSize = getPreferredSize();
792 if (peer != null) {
793 setClientSize(newSize.width, newSize.height);
794 }
795
796 if(beforeFirstShow) {
797 isPacked = true;
798 }
799
800 validateUnconditionally();
801 }
802
803 /**
804 * Sets the minimum size of this window to a constant
805 * value. Subsequent calls to {@code getMinimumSize}
806 * will always return this value. If current window's
807 * size is less than {@code minimumSize} the size of the
808 * window is automatically enlarged to honor the minimum size.
809 * <p>
810 * If the {@code setSize} or {@code setBounds} methods
811 * are called afterwards with a width or height less than
812 * that was specified by the {@code setMinimumSize} method
813 * the window is automatically enlarged to meet
814 * the {@code minimumSize} value. The {@code minimumSize}
815 * value also affects the behaviour of the {@code pack} method.
816 * <p>
817 * The default behavior is restored by setting the minimum size
818 * parameter to the {@code null} value.
819 * <p>
820 * Resizing operation may be restricted if the user tries
821 * to resize window below the {@code minimumSize} value.
822 * This behaviour is platform-dependent.
823 *
824 * @param minimumSize the new minimum size of this window
825 * @see Component#setMinimumSize
826 * @see #getMinimumSize
827 * @see #isMinimumSizeSet
828 * @see #setSize(Dimension)
829 * @see #pack
830 * @since 1.6
831 */
832 public void setMinimumSize(Dimension minimumSize) {
833 synchronized (getTreeLock()) {
834 super.setMinimumSize(minimumSize);
835 Dimension size = getSize();
836 if (isMinimumSizeSet()) {
837 if (size.width < minimumSize.width || size.height < minimumSize.height) {
838 int nw = Math.max(width, minimumSize.width);
839 int nh = Math.max(height, minimumSize.height);
840 setSize(nw, nh);
841 }
842 }
843 if (peer != null) {
844 ((WindowPeer)peer).updateMinimumSize();
845 }
846 }
847 }
848
849 /**
850 * {@inheritDoc}
851 * <p>
852 * The {@code d.width} and {@code d.height} values
853 * are automatically enlarged if either is less than
854 * the minimum size as specified by previous call to
855 * {@code setMinimumSize}.
856 * <p>
857 * The method changes the geometry-related data. Therefore,
858 * the native windowing system may ignore such requests, or it may modify
859 * the requested data, so that the {@code Window} object is placed and sized
860 * in a way that corresponds closely to the desktop settings.
861 *
862 * @see #getSize
863 * @see #setBounds
864 * @see #setMinimumSize
865 * @since 1.6
866 */
867 public void setSize(Dimension d) {
868 super.setSize(d);
869 }
870
871 /**
872 * {@inheritDoc}
873 * <p>
874 * The {@code width} and {@code height} values
875 * are automatically enlarged if either is less than
876 * the minimum size as specified by previous call to
877 * {@code setMinimumSize}.
878 * <p>
879 * The method changes the geometry-related data. Therefore,
880 * the native windowing system may ignore such requests, or it may modify
881 * the requested data, so that the {@code Window} object is placed and sized
882 * in a way that corresponds closely to the desktop settings.
883 *
884 * @see #getSize
885 * @see #setBounds
886 * @see #setMinimumSize
887 * @since 1.6
888 */
889 public void setSize(int width, int height) {
890 super.setSize(width, height);
891 }
892
893 /**
894 * {@inheritDoc}
895 * <p>
896 * The method changes the geometry-related data. Therefore,
897 * the native windowing system may ignore such requests, or it may modify
898 * the requested data, so that the {@code Window} object is placed and sized
899 * in a way that corresponds closely to the desktop settings.
900 */
901 @Override
902 public void setLocation(int x, int y) {
903 super.setLocation(x, y);
904 }
905
906 /**
907 * {@inheritDoc}
908 * <p>
909 * The method changes the geometry-related data. Therefore,
910 * the native windowing system may ignore such requests, or it may modify
911 * the requested data, so that the {@code Window} object is placed and sized
912 * in a way that corresponds closely to the desktop settings.
913 */
914 @Override
915 public void setLocation(Point p) {
916 super.setLocation(p);
917 }
918
919 /**
920 * @deprecated As of JDK version 1.1,
921 * replaced by {@code setBounds(int, int, int, int)}.
922 */
923 @Deprecated
924 public void reshape(int x, int y, int width, int height) {
925 if (isMinimumSizeSet()) {
926 Dimension minSize = getMinimumSize();
927 if (width < minSize.width) {
928 width = minSize.width;
929 }
930 if (height < minSize.height) {
931 height = minSize.height;
932 }
933 }
934 super.reshape(x, y, width, height);
935 }
936
937 void setClientSize(int w, int h) {
938 synchronized (getTreeLock()) {
939 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
940 setBounds(x, y, w, h);
941 }
942 }
943
944 static private final AtomicBoolean
945 beforeFirstWindowShown = new AtomicBoolean(true);
946
947 final void closeSplashScreen() {
948 if (isTrayIconWindow) {
949 return;
950 }
951 if (beforeFirstWindowShown.getAndSet(false)) {
952 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
953 // the object if it hasn't been requested by user code explicitly
954 SunToolkit.closeSplashScreen();
955 SplashScreen.markClosed();
956 }
957 }
958
959 /**
960 * Shows or hides this {@code Window} depending on the value of parameter
961 * {@code b}.
962 * <p>
963 * If the method shows the window then the window is also made
964 * focused under the following conditions:
965 * <ul>
966 * <li> The {@code Window} meets the requirements outlined in the
967 * {@link #isFocusableWindow} method.
968 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
969 * <li> Native windowing system allows the {@code Window} to get focused.
970 * </ul>
971 * There is an exception for the second condition (the value of the
972 * {@code autoRequestFocus} property). The property is not taken into account if the
973 * window is a modal dialog, which blocks the currently focused window.
974 * <p>
975 * Developers must never assume that the window is the focused or active window
976 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
977 * @param b if {@code true}, makes the {@code Window} visible,
978 * otherwise hides the {@code Window}.
979 * If the {@code Window} and/or its owner
980 * are not yet displayable, both are made displayable. The
981 * {@code Window} will be validated prior to being made visible.
982 * If the {@code Window} is already visible, this will bring the
983 * {@code Window} to the front.<p>
984 * If {@code false}, hides this {@code Window}, its subcomponents, and all
985 * of its owned children.
986 * The {@code Window} and its subcomponents can be made visible again
987 * with a call to {@code #setVisible(true)}.
988 * @see java.awt.Component#isDisplayable
989 * @see java.awt.Component#setVisible
990 * @see java.awt.Window#toFront
991 * @see java.awt.Window#dispose
992 * @see java.awt.Window#setAutoRequestFocus
993 * @see java.awt.Window#isFocusableWindow
994 */
995 public void setVisible(boolean b) {
996 super.setVisible(b);
997 }
998
999 /**
1000 * Makes the Window visible. If the Window and/or its owner
1001 * are not yet displayable, both are made displayable. The
1002 * Window will be validated prior to being made visible.
1003 * If the Window is already visible, this will bring the Window
1004 * to the front.
1005 * @see Component#isDisplayable
1006 * @see #toFront
1007 * @deprecated As of JDK version 1.5, replaced by
1008 * {@link #setVisible(boolean)}.
1009 */
1010 @Deprecated
1011 public void show() {
1012 if (peer == null) {
1013 addNotify();
1014 }
1015 validateUnconditionally();
1016
1017 isInShow = true;
1018 if (visible) {
1019 toFront();
1020 } else {
1021 beforeFirstShow = false;
1022 closeSplashScreen();
1023 Dialog.checkShouldBeBlocked(this);
1024 super.show();
1025 locationByPlatform = false;
1026 for (int i = 0; i < ownedWindowList.size(); i++) {
1027 Window child = ownedWindowList.elementAt(i).get();
1028 if ((child != null) && child.showWithParent) {
1029 child.show();
1030 child.showWithParent = false;
1031 } // endif
1032 } // endfor
1033 if (!isModalBlocked()) {
1034 updateChildrenBlocking();
1035 } else {
1036 // fix for 6532736: after this window is shown, its blocker
1037 // should be raised to front
1038 modalBlocker.toFront_NoClientCode();
1039 }
1040 if (this instanceof Frame || this instanceof Dialog) {
1041 updateChildFocusableWindowState(this);
1042 }
1043 }
1044 isInShow = false;
1045
1046 // If first time shown, generate WindowOpened event
1047 if ((state & OPENED) == 0) {
1048 postWindowEvent(WindowEvent.WINDOW_OPENED);
1049 state |= OPENED;
1050 }
1051 }
1052
1053 static void updateChildFocusableWindowState(Window w) {
1054 if (w.getPeer() != null && w.isShowing()) {
1055 ((WindowPeer)w.getPeer()).updateFocusableWindowState();
1056 }
1057 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1058 Window child = w.ownedWindowList.elementAt(i).get();
1059 if (child != null) {
1060 updateChildFocusableWindowState(child);
1061 }
1062 }
1063 }
1064
1065 synchronized void postWindowEvent(int id) {
1066 if (windowListener != null
1067 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1068 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1069 WindowEvent e = new WindowEvent(this, id);
1070 Toolkit.getEventQueue().postEvent(e);
1071 }
1072 }
1073
1074 /**
1075 * Hide this Window, its subcomponents, and all of its owned children.
1076 * The Window and its subcomponents can be made visible again
1077 * with a call to {@code show}.
1078 * </p>
1079 * @see #show
1080 * @see #dispose
1081 * @deprecated As of JDK version 1.5, replaced by
1082 * {@link #setVisible(boolean)}.
1083 */
1084 @Deprecated
1085 public void hide() {
1086 synchronized(ownedWindowList) {
1087 for (int i = 0; i < ownedWindowList.size(); i++) {
1088 Window child = ownedWindowList.elementAt(i).get();
1089 if ((child != null) && child.visible) {
1090 child.hide();
1091 child.showWithParent = true;
1092 }
1093 }
1094 }
1095 if (isModalBlocked()) {
1096 modalBlocker.unblockWindow(this);
1097 }
1098 super.hide();
1099 }
1100
1101 final void clearMostRecentFocusOwnerOnHide() {
1102 /* do nothing */
1103 }
1104
1105 /**
1106 * Releases all of the native screen resources used by this
1107 * {@code Window}, its subcomponents, and all of its owned
1108 * children. That is, the resources for these {@code Component}s
1109 * will be destroyed, any memory they consume will be returned to the
1110 * OS, and they will be marked as undisplayable.
1111 * <p>
1112 * The {@code Window} and its subcomponents can be made displayable
1113 * again by rebuilding the native resources with a subsequent call to
1114 * {@code pack} or {@code show}. The states of the recreated
1115 * {@code Window} and its subcomponents will be identical to the
1116 * states of these objects at the point where the {@code Window}
1117 * was disposed (not accounting for additional modifications between
1118 * those actions).
1119 * <p>
1120 * <b>Note</b>: When the last displayable window
1121 * within the Java virtual machine (VM) is disposed of, the VM may
1122 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1123 * AWT Threading Issues</a> for more information.
1124 * @see Component#isDisplayable
1125 * @see #pack
1126 * @see #show
1127 */
1128 public void dispose() {
1129 doDispose();
1130 }
1131
1132 /*
1133 * Fix for 4872170.
1134 * If dispose() is called on parent then its children have to be disposed as well
1135 * as reported in javadoc. So we need to implement this functionality even if a
1136 * child overrides dispose() in a wrong way without calling super.dispose().
1137 */
1138 void disposeImpl() {
1139 dispose();
1140 if (getPeer() != null) {
1141 doDispose();
1142 }
1143 }
1144
1145 void doDispose() {
1146 class DisposeAction implements Runnable {
1147 public void run() {
1148 disposing = true;
1149 try {
1150 // Check if this window is the fullscreen window for the
1151 // device. Exit the fullscreen mode prior to disposing
1152 // of the window if that's the case.
1153 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1154 if (gd.getFullScreenWindow() == Window.this) {
1155 gd.setFullScreenWindow(null);
1156 }
1157
1158 Object[] ownedWindowArray;
1159 synchronized(ownedWindowList) {
1160 ownedWindowArray = new Object[ownedWindowList.size()];
1161 ownedWindowList.copyInto(ownedWindowArray);
1162 }
1163 for (int i = 0; i < ownedWindowArray.length; i++) {
1164 Window child = (Window) (((WeakReference)
1165 (ownedWindowArray[i])).get());
1166 if (child != null) {
1167 child.disposeImpl();
1168 }
1169 }
1170 hide();
1171 beforeFirstShow = true;
1172 removeNotify();
1173 synchronized (inputContextLock) {
1174 if (inputContext != null) {
1175 inputContext.dispose();
1176 inputContext = null;
1177 }
1178 }
1179 clearCurrentFocusCycleRootOnHide();
1180 } finally {
1181 disposing = false;
1182 }
1183 }
1184 }
1185 boolean fireWindowClosedEvent = isDisplayable();
1186 DisposeAction action = new DisposeAction();
1187 if (EventQueue.isDispatchThread()) {
1188 action.run();
1189 }
1190 else {
1191 try {
1192 EventQueue.invokeAndWait(this, action);
1193 }
1194 catch (InterruptedException e) {
1195 System.err.println("Disposal was interrupted:");
1196 e.printStackTrace();
1197 }
1198 catch (InvocationTargetException e) {
1199 System.err.println("Exception during disposal:");
1200 e.printStackTrace();
1201 }
1202 }
1203 // Execute outside the Runnable because postWindowEvent is
1204 // synchronized on (this). We don't need to synchronize the call
1205 // on the EventQueue anyways.
1206 if (fireWindowClosedEvent) {
1207 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1208 }
1209 }
1210
1211 /*
1212 * Should only be called while holding the tree lock.
1213 * It's overridden here because parent == owner in Window,
1214 * and we shouldn't adjust counter on owner
1215 */
1216 void adjustListeningChildrenOnParent(long mask, int num) {
1217 }
1218
1219 // Should only be called while holding tree lock
1220 void adjustDecendantsOnParent(int num) {
1221 // do nothing since parent == owner and we shouldn't
1222 // ajust counter on owner
1223 }
1224
1225 /**
1226 * If this Window is visible, brings this Window to the front and may make
1227 * it the focused Window.
1228 * <p>
1229 * Places this Window at the top of the stacking order and shows it in
1230 * front of any other Windows in this VM. No action will take place if this
1231 * Window is not visible. Some platforms do not allow Windows which own
1232 * other Windows to appear on top of those owned Windows. Some platforms
1233 * may not permit this VM to place its Windows above windows of native
1234 * applications, or Windows of other VMs. This permission may depend on
1235 * whether a Window in this VM is already focused. Every attempt will be
1236 * made to move this Window as high as possible in the stacking order;
1237 * however, developers should not assume that this method will move this
1238 * Window above all other windows in every situation.
1239 * <p>
1240 * Developers must never assume that this Window is the focused or active
1241 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1242 * event. On platforms where the top-most window is the focused window, this
1243 * method will <b>probably</b> focus this Window (if it is not already focused)
1244 * under the following conditions:
1245 * <ul>
1246 * <li> The window meets the requirements outlined in the
1247 * {@link #isFocusableWindow} method.
1248 * <li> The window's property {@code autoRequestFocus} is of the
1249 * {@code true} value.
1250 * <li> Native windowing system allows the window to get focused.
1251 * </ul>
1252 * On platforms where the stacking order does not typically affect the focused
1253 * window, this method will <b>probably</b> leave the focused and active
1254 * Windows unchanged.
1255 * <p>
1256 * If this method causes this Window to be focused, and this Window is a
1257 * Frame or a Dialog, it will also become activated. If this Window is
1258 * focused, but it is not a Frame or a Dialog, then the first Frame or
1259 * Dialog that is an owner of this Window will be activated.
1260 * <p>
1261 * If this window is blocked by modal dialog, then the blocking dialog
1262 * is brought to the front and remains above the blocked window.
1263 *
1264 * @see #toBack
1265 * @see #setAutoRequestFocus
1266 * @see #isFocusableWindow
1267 */
1268 public void toFront() {
1269 toFront_NoClientCode();
1270 }
1271
1272 // This functionality is implemented in a final package-private method
1273 // to insure that it cannot be overridden by client subclasses.
1274 final void toFront_NoClientCode() {
1275 if (visible) {
1276 WindowPeer peer = (WindowPeer)this.peer;
1277 if (peer != null) {
1278 peer.toFront();
1279 }
1280 if (isModalBlocked()) {
1281 modalBlocker.toFront_NoClientCode();
1282 }
1283 }
1284 }
1285
1286 /**
1287 * If this Window is visible, sends this Window to the back and may cause
1288 * it to lose focus or activation if it is the focused or active Window.
1289 * <p>
1290 * Places this Window at the bottom of the stacking order and shows it
1291 * behind any other Windows in this VM. No action will take place is this
1292 * Window is not visible. Some platforms do not allow Windows which are
1293 * owned by other Windows to appear below their owners. Every attempt will
1294 * be made to move this Window as low as possible in the stacking order;
1295 * however, developers should not assume that this method will move this
1296 * Window below all other windows in every situation.
1297 * <p>
1298 * Because of variations in native windowing systems, no guarantees about
1299 * changes to the focused and active Windows can be made. Developers must
1300 * never assume that this Window is no longer the focused or active Window
1301 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1302 * event. On platforms where the top-most window is the focused window,
1303 * this method will <b>probably</b> cause this Window to lose focus. In
1304 * that case, the next highest, focusable Window in this VM will receive
1305 * focus. On platforms where the stacking order does not typically affect
1306 * the focused window, this method will <b>probably</b> leave the focused
1307 * and active Windows unchanged.
1308 *
1309 * @see #toFront
1310 */
1311 public void toBack() {
1312 toBack_NoClientCode();
1313 }
1314
1315 // This functionality is implemented in a final package-private method
1316 // to insure that it cannot be overridden by client subclasses.
1317 final void toBack_NoClientCode() {
1318 if(isAlwaysOnTop()) {
1319 try {
1320 setAlwaysOnTop(false);
1321 }catch(SecurityException e) {
1322 }
1323 }
1324 if (visible) {
1325 WindowPeer peer = (WindowPeer)this.peer;
1326 if (peer != null) {
1327 peer.toBack();
1328 }
1329 }
1330 }
1331
1332 /**
1333 * Returns the toolkit of this frame.
1334 * @return the toolkit of this window.
1335 * @see Toolkit
1336 * @see Toolkit#getDefaultToolkit
1337 * @see Component#getToolkit
1338 */
1339 public Toolkit getToolkit() {
1340 return Toolkit.getDefaultToolkit();
1341 }
1342
1343 /**
1344 * Gets the warning string that is displayed with this window.
1345 * If this window is insecure, the warning string is displayed
1346 * somewhere in the visible area of the window. A window is
1347 * insecure if there is a security manager and the security
1348 * manager denies
1349 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1350 * <p>
1351 * If the window is secure, then {@code getWarningString}
1352 * returns {@code null}. If the window is insecure, this
1353 * method checks for the system property
1354 * {@code awt.appletWarning}
1355 * and returns the string value of that property.
1356 * @return the warning string for this window.
1357 */
1358 public final String getWarningString() {
1359 return warningString;
1360 }
1361
1362 private void setWarningString() {
1363 warningString = null;
1364 SecurityManager sm = System.getSecurityManager();
1365 if (sm != null) {
1366 try {
1367 sm.checkPermission(SecurityConstants.AWT.TOPLEVEL_WINDOW_PERMISSION);
1368 } catch (SecurityException se) {
1369 // make sure the privileged action is only
1370 // for getting the property! We don't want the
1371 // above checkPermission call to always succeed!
1372 warningString = AccessController.doPrivileged(
1373 new GetPropertyAction("awt.appletWarning",
1374 "Java Applet Window"));
1375 }
1376 }
1377 }
1378
1379 /**
1380 * Gets the {@code Locale} object that is associated
1381 * with this window, if the locale has been set.
1382 * If no locale has been set, then the default locale
1383 * is returned.
1384 * @return the locale that is set for this window.
1385 * @see java.util.Locale
1386 * @since JDK1.1
1387 */
1388 public Locale getLocale() {
1389 if (this.locale == null) {
1390 return Locale.getDefault();
1391 }
1392 return this.locale;
1393 }
1394
1395 /**
1396 * Gets the input context for this window. A window always has an input context,
1397 * which is shared by subcomponents unless they create and set their own.
1398 * @see Component#getInputContext
1399 * @since 1.2
1400 */
1401 public InputContext getInputContext() {
1402 synchronized (inputContextLock) {
1403 if (inputContext == null) {
1404 inputContext = InputContext.getInstance();
1405 }
1406 }
1407 return inputContext;
1408 }
1409
1410 /**
1411 * Set the cursor image to a specified cursor.
1412 * <p>
1413 * The method may have no visual effect if the Java platform
1414 * implementation and/or the native system do not support
1415 * changing the mouse cursor shape.
1416 * @param cursor One of the constants defined
1417 * by the {@code Cursor} class. If this parameter is null
1418 * then the cursor for this window will be set to the type
1419 * Cursor.DEFAULT_CURSOR.
1420 * @see Component#getCursor
1421 * @see Cursor
1422 * @since JDK1.1
1423 */
1424 public void setCursor(Cursor cursor) {
1425 if (cursor == null) {
1426 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1427 }
1428 super.setCursor(cursor);
1429 }
1430
1431 /**
1432 * Returns the owner of this window.
1433 * @since 1.2
1434 */
1435 public Window getOwner() {
1436 return getOwner_NoClientCode();
1437 }
1438 final Window getOwner_NoClientCode() {
1439 return (Window)parent;
1440 }
1441
1442 /**
1443 * Return an array containing all the windows this
1444 * window currently owns.
1445 * @since 1.2
1446 */
1447 public Window[] getOwnedWindows() {
1448 return getOwnedWindows_NoClientCode();
1449 }
1450 final Window[] getOwnedWindows_NoClientCode() {
1451 Window realCopy[];
1452
1453 synchronized(ownedWindowList) {
1454 // Recall that ownedWindowList is actually a Vector of
1455 // WeakReferences and calling get() on one of these references
1456 // may return null. Make two arrays-- one the size of the
1457 // Vector (fullCopy with size fullSize), and one the size of
1458 // all non-null get()s (realCopy with size realSize).
1459 int fullSize = ownedWindowList.size();
1460 int realSize = 0;
1461 Window fullCopy[] = new Window[fullSize];
1462
1463 for (int i = 0; i < fullSize; i++) {
1464 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1465
1466 if (fullCopy[realSize] != null) {
1467 realSize++;
1468 }
1469 }
1470
1471 if (fullSize != realSize) {
1472 realCopy = Arrays.copyOf(fullCopy, realSize);
1473 } else {
1474 realCopy = fullCopy;
1475 }
1476 }
1477
1478 return realCopy;
1479 }
1480
1481 boolean isModalBlocked() {
1482 return modalBlocker != null;
1483 }
1484
1485 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1486 this.modalBlocker = blocked ? blocker : null;
1487 if (peerCall) {
1488 WindowPeer peer = (WindowPeer)this.peer;
1489 if (peer != null) {
1490 peer.setModalBlocked(blocker, blocked);
1491 }
1492 }
1493 }
1494
1495 Dialog getModalBlocker() {
1496 return modalBlocker;
1497 }
1498
1499 /*
1500 * Returns a list of all displayable Windows, i. e. all the
1501 * Windows which peer is not null.
1502 *
1503 * @see #addNotify
1504 * @see #removeNotify
1505 */
1506 static IdentityArrayList<Window> getAllWindows() {
1507 synchronized (allWindows) {
1508 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1509 v.addAll(allWindows);
1510 return v;
1511 }
1512 }
1513
1514 static IdentityArrayList<Window> getAllUnblockedWindows() {
1515 synchronized (allWindows) {
1516 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1517 for (int i = 0; i < allWindows.size(); i++) {
1518 Window w = allWindows.get(i);
1519 if (!w.isModalBlocked()) {
1520 unblocked.add(w);
1521 }
1522 }
1523 return unblocked;
1524 }
1525 }
1526
1527 private static Window[] getWindows(AppContext appContext) {
1528 synchronized (Window.class) {
1529 Window realCopy[];
1530 @SuppressWarnings("unchecked")
1531 Vector<WeakReference<Window>> windowList =
1532 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1533 if (windowList != null) {
1534 int fullSize = windowList.size();
1535 int realSize = 0;
1536 Window fullCopy[] = new Window[fullSize];
1537 for (int i = 0; i < fullSize; i++) {
1538 Window w = windowList.get(i).get();
1539 if (w != null) {
1540 fullCopy[realSize++] = w;
1541 }
1542 }
1543 if (fullSize != realSize) {
1544 realCopy = Arrays.copyOf(fullCopy, realSize);
1545 } else {
1546 realCopy = fullCopy;
1547 }
1548 } else {
1549 realCopy = new Window[0];
1550 }
1551 return realCopy;
1552 }
1553 }
1554
1555 /**
1556 * Returns an array of all {@code Window}s, both owned and ownerless,
1557 * created by this application.
1558 * If called from an applet, the array includes only the {@code Window}s
1559 * accessible by that applet.
1560 * <p>
1561 * <b>Warning:</b> this method may return system created windows, such
1562 * as a print dialog. Applications should not assume the existence of
1563 * these dialogs, nor should an application assume anything about these
1564 * dialogs such as component positions, {@code LayoutManager}s
1565 * or serialization.
1566 *
1567 * @see Frame#getFrames
1568 * @see Window#getOwnerlessWindows
1569 *
1570 * @since 1.6
1571 */
1572 public static Window[] getWindows() {
1573 return getWindows(AppContext.getAppContext());
1574 }
1575
1576 /**
1577 * Returns an array of all {@code Window}s created by this application
1578 * that have no owner. They include {@code Frame}s and ownerless
1579 * {@code Dialog}s and {@code Window}s.
1580 * If called from an applet, the array includes only the {@code Window}s
1581 * accessible by that applet.
1582 * <p>
1583 * <b>Warning:</b> this method may return system created windows, such
1584 * as a print dialog. Applications should not assume the existence of
1585 * these dialogs, nor should an application assume anything about these
1586 * dialogs such as component positions, {@code LayoutManager}s
1587 * or serialization.
1588 *
1589 * @see Frame#getFrames
1590 * @see Window#getWindows()
1591 *
1592 * @since 1.6
1593 */
1594 public static Window[] getOwnerlessWindows() {
1595 Window[] allWindows = Window.getWindows();
1596
1597 int ownerlessCount = 0;
1598 for (Window w : allWindows) {
1599 if (w.getOwner() == null) {
1600 ownerlessCount++;
1601 }
1602 }
1603
1604 Window[] ownerless = new Window[ownerlessCount];
1605 int c = 0;
1606 for (Window w : allWindows) {
1607 if (w.getOwner() == null) {
1608 ownerless[c++] = w;
1609 }
1610 }
1611
1612 return ownerless;
1613 }
1614
1615 Window getDocumentRoot() {
1616 synchronized (getTreeLock()) {
1617 Window w = this;
1618 while (w.getOwner() != null) {
1619 w = w.getOwner();
1620 }
1621 return w;
1622 }
1623 }
1624
1625 /**
1626 * Specifies the modal exclusion type for this window. If a window is modal
1627 * excluded, it is not blocked by some modal dialogs. See {@link
1628 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1629 * possible modal exclusion types.
1630 * <p>
1631 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1632 * <p>
1633 * Note: changing the modal exclusion type for a visible window may have no
1634 * effect until it is hidden and then shown again.
1635 *
1636 * @param exclusionType the modal exclusion type for this window; a {@code null}
1637 * value is equivivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1638 * NO_EXCLUDE}
1639 * @throws SecurityException if the calling thread does not have permission
1640 * to set the modal exclusion property to the window with the given
1641 * {@code exclusionType}
1642 * @see java.awt.Dialog.ModalExclusionType
1643 * @see java.awt.Window#getModalExclusionType
1644 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1645 *
1646 * @since 1.6
1647 */
1648 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1649 if (exclusionType == null) {
1650 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1651 }
1652 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1653 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1654 }
1655 if (modalExclusionType == exclusionType) {
1656 return;
1657 }
1658 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1659 SecurityManager sm = System.getSecurityManager();
1660 if (sm != null) {
1661 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION);
1662 }
1663 }
1664 modalExclusionType = exclusionType;
1665
1666 // if we want on-fly changes, we need to uncomment the lines below
1667 // and override the method in Dialog to use modalShow() instead
1668 // of updateChildrenBlocking()
1669 /*
1670 if (isModalBlocked()) {
1671 modalBlocker.unblockWindow(this);
1672 }
1673 Dialog.checkShouldBeBlocked(this);
1674 updateChildrenBlocking();
1675 */
1676 }
1677
1678 /**
1679 * Returns the modal exclusion type of this window.
1680 *
1681 * @return the modal exclusion type of this window
1682 *
1683 * @see java.awt.Dialog.ModalExclusionType
1684 * @see java.awt.Window#setModalExclusionType
1685 *
1686 * @since 1.6
1687 */
1688 public Dialog.ModalExclusionType getModalExclusionType() {
1689 return modalExclusionType;
1690 }
1691
1692 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1693 if ((modalExclusionType != null) &&
1694 modalExclusionType.compareTo(exclusionType) >= 0)
1695 {
1696 return true;
1697 }
1698 Window owner = getOwner_NoClientCode();
1699 return (owner != null) && owner.isModalExcluded(exclusionType);
1700 }
1701
1702 void updateChildrenBlocking() {
1703 Vector<Window> childHierarchy = new Vector<Window>();
1704 Window[] ownedWindows = getOwnedWindows();
1705 for (int i = 0; i < ownedWindows.length; i++) {
1706 childHierarchy.add(ownedWindows[i]);
1707 }
1708 int k = 0;
1709 while (k < childHierarchy.size()) {
1710 Window w = childHierarchy.get(k);
1711 if (w.isVisible()) {
1712 if (w.isModalBlocked()) {
1713 Dialog blocker = w.getModalBlocker();
1714 blocker.unblockWindow(w);
1715 }
1716 Dialog.checkShouldBeBlocked(w);
1717 Window[] wOwned = w.getOwnedWindows();
1718 for (int j = 0; j < wOwned.length; j++) {
1719 childHierarchy.add(wOwned[j]);
1720 }
1721 }
1722 k++;
1723 }
1724 }
1725
1726 /**
1727 * Adds the specified window listener to receive window events from
1728 * this window.
1729 * If l is null, no exception is thrown and no action is performed.
1730 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1731 * >AWT Threading Issues</a> for details on AWT's threading model.
1732 *
1733 * @param l the window listener
1734 * @see #removeWindowListener
1735 * @see #getWindowListeners
1736 */
1737 public synchronized void addWindowListener(WindowListener l) {
1738 if (l == null) {
1739 return;
1740 }
1741 newEventsOnly = true;
1742 windowListener = AWTEventMulticaster.add(windowListener, l);
1743 }
1744
1745 /**
1746 * Adds the specified window state listener to receive window
1747 * events from this window. If {@code l} is {@code null},
1748 * no exception is thrown and no action is performed.
1749 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1750 * >AWT Threading Issues</a> for details on AWT's threading model.
1751 *
1752 * @param l the window state listener
1753 * @see #removeWindowStateListener
1754 * @see #getWindowStateListeners
1755 * @since 1.4
1756 */
1757 public synchronized void addWindowStateListener(WindowStateListener l) {
1758 if (l == null) {
1759 return;
1760 }
1761 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1762 newEventsOnly = true;
1763 }
1764
1765 /**
1766 * Adds the specified window focus listener to receive window events
1767 * from this window.
1768 * If l is null, no exception is thrown and no action is performed.
1769 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1770 * >AWT Threading Issues</a> for details on AWT's threading model.
1771 *
1772 * @param l the window focus listener
1773 * @see #removeWindowFocusListener
1774 * @see #getWindowFocusListeners
1775 * @since 1.4
1776 */
1777 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1778 if (l == null) {
1779 return;
1780 }
1781 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1782 newEventsOnly = true;
1783 }
1784
1785 /**
1786 * Removes the specified window listener so that it no longer
1787 * receives window events from this window.
1788 * If l is null, no exception is thrown and no action is performed.
1789 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1790 * >AWT Threading Issues</a> for details on AWT's threading model.
1791 *
1792 * @param l the window listener
1793 * @see #addWindowListener
1794 * @see #getWindowListeners
1795 */
1796 public synchronized void removeWindowListener(WindowListener l) {
1797 if (l == null) {
1798 return;
1799 }
1800 windowListener = AWTEventMulticaster.remove(windowListener, l);
1801 }
1802
1803 /**
1804 * Removes the specified window state listener so that it no
1805 * longer receives window events from this window. If
1806 * {@code l} is {@code null}, no exception is thrown and
1807 * no action is performed.
1808 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1809 * >AWT Threading Issues</a> for details on AWT's threading model.
1810 *
1811 * @param l the window state listener
1812 * @see #addWindowStateListener
1813 * @see #getWindowStateListeners
1814 * @since 1.4
1815 */
1816 public synchronized void removeWindowStateListener(WindowStateListener l) {
1817 if (l == null) {
1818 return;
1819 }
1820 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1821 }
1822
1823 /**
1824 * Removes the specified window focus listener so that it no longer
1825 * receives window events from this window.
1826 * If l is null, no exception is thrown and no action is performed.
1827 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1828 * >AWT Threading Issues</a> for details on AWT's threading model.
1829 *
1830 * @param l the window focus listener
1831 * @see #addWindowFocusListener
1832 * @see #getWindowFocusListeners
1833 * @since 1.4
1834 */
1835 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1836 if (l == null) {
1837 return;
1838 }
1839 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1840 }
1841
1842 /**
1843 * Returns an array of all the window listeners
1844 * registered on this window.
1845 *
1846 * @return all of this window's {@code WindowListener}s
1847 * or an empty array if no window
1848 * listeners are currently registered
1849 *
1850 * @see #addWindowListener
1851 * @see #removeWindowListener
1852 * @since 1.4
1853 */
1854 public synchronized WindowListener[] getWindowListeners() {
1855 return getListeners(WindowListener.class);
1856 }
1857
1858 /**
1859 * Returns an array of all the window focus listeners
1860 * registered on this window.
1861 *
1862 * @return all of this window's {@code WindowFocusListener}s
1863 * or an empty array if no window focus
1864 * listeners are currently registered
1865 *
1866 * @see #addWindowFocusListener
1867 * @see #removeWindowFocusListener
1868 * @since 1.4
1869 */
1870 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1871 return getListeners(WindowFocusListener.class);
1872 }
1873
1874 /**
1875 * Returns an array of all the window state listeners
1876 * registered on this window.
1877 *
1878 * @return all of this window's {@code WindowStateListener}s
1879 * or an empty array if no window state
1880 * listeners are currently registered
1881 *
1882 * @see #addWindowStateListener
1883 * @see #removeWindowStateListener
1884 * @since 1.4
1885 */
1886 public synchronized WindowStateListener[] getWindowStateListeners() {
1887 return getListeners(WindowStateListener.class);
1888 }
1889
1890
1891 /**
1892 * Returns an array of all the objects currently registered
1893 * as <code><em>Foo</em>Listener</code>s
1894 * upon this {@code Window}.
1895 * <code><em>Foo</em>Listener</code>s are registered using the
1896 * <code>add<em>Foo</em>Listener</code> method.
1897 *
1898 * <p>
1899 *
1900 * You can specify the {@code listenerType} argument
1901 * with a class literal, such as
1902 * <code><em>Foo</em>Listener.class</code>.
1903 * For example, you can query a
1904 * {@code Window} {@code w}
1905 * for its window listeners with the following code:
1906 *
1907 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1908 *
1909 * If no such listeners exist, this method returns an empty array.
1910 *
1911 * @param listenerType the type of listeners requested; this parameter
1912 * should specify an interface that descends from
1913 * {@code java.util.EventListener}
1914 * @return an array of all objects registered as
1915 * <code><em>Foo</em>Listener</code>s on this window,
1916 * or an empty array if no such
1917 * listeners have been added
1918 * @exception ClassCastException if {@code listenerType}
1919 * doesn't specify a class or interface that implements
1920 * {@code java.util.EventListener}
1921 * @exception NullPointerException if {@code listenerType} is {@code null}
1922 *
1923 * @see #getWindowListeners
1924 * @since 1.3
1925 */
1926 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1927 EventListener l = null;
1928 if (listenerType == WindowFocusListener.class) {
1929 l = windowFocusListener;
1930 } else if (listenerType == WindowStateListener.class) {
1931 l = windowStateListener;
1932 } else if (listenerType == WindowListener.class) {
1933 l = windowListener;
1934 } else {
1935 return super.getListeners(listenerType);
1936 }
1937 return AWTEventMulticaster.getListeners(l, listenerType);
1938 }
1939
1940 // REMIND: remove when filtering is handled at lower level
1941 boolean eventEnabled(AWTEvent e) {
1942 switch(e.id) {
1943 case WindowEvent.WINDOW_OPENED:
1944 case WindowEvent.WINDOW_CLOSING:
1945 case WindowEvent.WINDOW_CLOSED:
1946 case WindowEvent.WINDOW_ICONIFIED:
1947 case WindowEvent.WINDOW_DEICONIFIED:
1948 case WindowEvent.WINDOW_ACTIVATED:
1949 case WindowEvent.WINDOW_DEACTIVATED:
1950 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1951 windowListener != null) {
1952 return true;
1953 }
1954 return false;
1955 case WindowEvent.WINDOW_GAINED_FOCUS:
1956 case WindowEvent.WINDOW_LOST_FOCUS:
1957 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1958 windowFocusListener != null) {
1959 return true;
1960 }
1961 return false;
1962 case WindowEvent.WINDOW_STATE_CHANGED:
1963 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1964 windowStateListener != null) {
1965 return true;
1966 }
1967 return false;
1968 default:
1969 break;
1970 }
1971 return super.eventEnabled(e);
1972 }
1973
1974 /**
1975 * Processes events on this window. If the event is an
1976 * {@code WindowEvent}, it invokes the
1977 * {@code processWindowEvent} method, else it invokes its
1978 * superclass's {@code processEvent}.
1979 * <p>Note that if the event parameter is {@code null}
1980 * the behavior is unspecified and may result in an
1981 * exception.
1982 *
1983 * @param e the event
1984 */
1985 protected void processEvent(AWTEvent e) {
1986 if (e instanceof WindowEvent) {
1987 switch (e.getID()) {
1988 case WindowEvent.WINDOW_OPENED:
1989 case WindowEvent.WINDOW_CLOSING:
1990 case WindowEvent.WINDOW_CLOSED:
1991 case WindowEvent.WINDOW_ICONIFIED:
1992 case WindowEvent.WINDOW_DEICONIFIED:
1993 case WindowEvent.WINDOW_ACTIVATED:
1994 case WindowEvent.WINDOW_DEACTIVATED:
1995 processWindowEvent((WindowEvent)e);
1996 break;
1997 case WindowEvent.WINDOW_GAINED_FOCUS:
1998 case WindowEvent.WINDOW_LOST_FOCUS:
1999 processWindowFocusEvent((WindowEvent)e);
2000 break;
2001 case WindowEvent.WINDOW_STATE_CHANGED:
2002 processWindowStateEvent((WindowEvent)e);
2003 break;
2004 }
2005 return;
2006 }
2007 super.processEvent(e);
2008 }
2009
2010 /**
2011 * Processes window events occurring on this window by
2012 * dispatching them to any registered WindowListener objects.
2013 * NOTE: This method will not be called unless window events
2014 * are enabled for this component; this happens when one of the
2015 * following occurs:
2016 * <ul>
2017 * <li>A WindowListener object is registered via
2018 * {@code addWindowListener}
2019 * <li>Window events are enabled via {@code enableEvents}
2020 * </ul>
2021 * <p>Note that if the event parameter is {@code null}
2022 * the behavior is unspecified and may result in an
2023 * exception.
2024 *
2025 * @param e the window event
2026 * @see Component#enableEvents
2027 */
2028 protected void processWindowEvent(WindowEvent e) {
2029 WindowListener listener = windowListener;
2030 if (listener != null) {
2031 switch(e.getID()) {
2032 case WindowEvent.WINDOW_OPENED:
2033 listener.windowOpened(e);
2034 break;
2035 case WindowEvent.WINDOW_CLOSING:
2036 listener.windowClosing(e);
2037 break;
2038 case WindowEvent.WINDOW_CLOSED:
2039 listener.windowClosed(e);
2040 break;
2041 case WindowEvent.WINDOW_ICONIFIED:
2042 listener.windowIconified(e);
2043 break;
2044 case WindowEvent.WINDOW_DEICONIFIED:
2045 listener.windowDeiconified(e);
2046 break;
2047 case WindowEvent.WINDOW_ACTIVATED:
2048 listener.windowActivated(e);
2049 break;
2050 case WindowEvent.WINDOW_DEACTIVATED:
2051 listener.windowDeactivated(e);
2052 break;
2053 default:
2054 break;
2055 }
2056 }
2057 }
2058
2059 /**
2060 * Processes window focus event occuring on this window by
2061 * dispatching them to any registered WindowFocusListener objects.
2062 * NOTE: this method will not be called unless window focus events
2063 * are enabled for this window. This happens when one of the
2064 * following occurs:
2065 * <ul>
2066 * <li>a WindowFocusListener is registered via
2067 * {@code addWindowFocusListener}
2068 * <li>Window focus events are enabled via {@code enableEvents}
2069 * </ul>
2070 * <p>Note that if the event parameter is {@code null}
2071 * the behavior is unspecified and may result in an
2072 * exception.
2073 *
2074 * @param e the window focus event
2075 * @see Component#enableEvents
2076 * @since 1.4
2077 */
2078 protected void processWindowFocusEvent(WindowEvent e) {
2079 WindowFocusListener listener = windowFocusListener;
2080 if (listener != null) {
2081 switch (e.getID()) {
2082 case WindowEvent.WINDOW_GAINED_FOCUS:
2083 listener.windowGainedFocus(e);
2084 break;
2085 case WindowEvent.WINDOW_LOST_FOCUS:
2086 listener.windowLostFocus(e);
2087 break;
2088 default:
2089 break;
2090 }
2091 }
2092 }
2093
2094 /**
2095 * Processes window state event occuring on this window by
2096 * dispatching them to any registered {@code WindowStateListener}
2097 * objects.
2098 * NOTE: this method will not be called unless window state events
2099 * are enabled for this window. This happens when one of the
2100 * following occurs:
2101 * <ul>
2102 * <li>a {@code WindowStateListener} is registered via
2103 * {@code addWindowStateListener}
2104 * <li>window state events are enabled via {@code enableEvents}
2105 * </ul>
2106 * <p>Note that if the event parameter is {@code null}
2107 * the behavior is unspecified and may result in an
2108 * exception.
2109 *
2110 * @param e the window state event
2111 * @see java.awt.Component#enableEvents
2112 * @since 1.4
2113 */
2114 protected void processWindowStateEvent(WindowEvent e) {
2115 WindowStateListener listener = windowStateListener;
2116 if (listener != null) {
2117 switch (e.getID()) {
2118 case WindowEvent.WINDOW_STATE_CHANGED:
2119 listener.windowStateChanged(e);
2120 break;
2121 default:
2122 break;
2123 }
2124 }
2125 }
2126
2127 /**
2128 * Implements a debugging hook -- checks to see if
2129 * the user has typed <i>control-shift-F1</i>. If so,
2130 * the list of child windows is dumped to {@code System.out}.
2131 * @param e the keyboard event
2132 */
2133 void preProcessKeyEvent(KeyEvent e) {
2134 // Dump the list of child windows to System.out.
2135 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2136 e.isControlDown() && e.isShiftDown() &&
2137 e.getID() == KeyEvent.KEY_PRESSED) {
2138 list(System.out, 0);
2139 }
2140 }
2141
2142 void postProcessKeyEvent(KeyEvent e) {
2143 // Do nothing
2144 }
2145
2146
2147 /**
2148 * Sets whether this window should always be above other windows. If
2149 * there are multiple always-on-top windows, their relative order is
2150 * unspecified and platform dependent.
2151 * <p>
2152 * If some other window is already always-on-top then the
2153 * relative order between these windows is unspecified (depends on
2154 * platform). No window can be brought to be over the always-on-top
2155 * window except maybe another always-on-top window.
2156 * <p>
2157 * All windows owned by an always-on-top window inherit this state and
2158 * automatically become always-on-top. If a window ceases to be
2159 * always-on-top, the windows that it owns will no longer be
2160 * always-on-top. When an always-on-top window is sent {@link #toBack
2161 * toBack}, its always-on-top state is set to {@code false}.
2162 *
2163 * <p> When this method is called on a window with a value of
2164 * {@code true}, and the window is visible and the platform
2165 * supports always-on-top for this window, the window is immediately
2166 * brought forward, "sticking" it in the top-most position. If the
2167 * window isn`t currently visible, this method sets the always-on-top
2168 * state to {@code true} but does not bring the window forward.
2169 * When the window is later shown, it will be always-on-top.
2170 *
2171 * <p> When this method is called on a window with a value of
2172 * {@code false} the always-on-top state is set to normal. Calling
2173 * this method with a value of {@code false} on a window that has
2174 * a normal state has no effect.
2175 *
2176 * <p><b>Note</b>: some platforms might not support always-on-top
2177 * windows. To detect if always-on-top windows are supported by the
2178 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2179 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2180 * isn't supported by the toolkit or for this window, calling this
2181 * method has no effect.
2182 * <p>
2183 * If a SecurityManager is installed, the calling thread must be
2184 * granted the AWTPermission "setWindowAlwaysOnTop" in
2185 * order to set the value of this property. If this
2186 * permission is not granted, this method will throw a
2187 * SecurityException, and the current value of the property will
2188 * be left unchanged.
2189 *
2190 * @param alwaysOnTop true if the window should always be above other
2191 * windows
2192 * @throws SecurityException if the calling thread does not have
2193 * permission to set the value of always-on-top property
2194 * @see #isAlwaysOnTop
2195 * @see #toFront
2196 * @see #toBack
2197 * @see AWTPermission
2198 * @see #isAlwaysOnTopSupported
2199 * @see Toolkit#isAlwaysOnTopSupported
2200 * @since 1.5
2201 */
2202 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2203 SecurityManager security = System.getSecurityManager();
2204 if (security != null) {
2205 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2206 }
2207
2208 boolean oldAlwaysOnTop;
2209 synchronized(this) {
2210 oldAlwaysOnTop = this.alwaysOnTop;
2211 this.alwaysOnTop = alwaysOnTop;
2212 }
2213 if (oldAlwaysOnTop != alwaysOnTop ) {
2214 if (isAlwaysOnTopSupported()) {
2215 WindowPeer peer = (WindowPeer)this.peer;
2216 synchronized(getTreeLock()) {
2217 if (peer != null) {
2218 peer.updateAlwaysOnTopState();
2219 }
2220 }
2221 }
2222 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2223 }
2224 }
2225
2226 /**
2227 * Returns whether the always-on-top mode is supported for this
2228 * window. Some platforms may not support always-on-top windows, some
2229 * may support only some kinds of top-level windows; for example,
2230 * a platform may not support always-on-top modal dialogs.
2231 * @return {@code true}, if the always-on-top mode is
2232 * supported by the toolkit and for this window,
2233 * {@code false}, if always-on-top mode is not supported
2234 * for this window or toolkit doesn't support always-on-top windows.
2235 * @see #setAlwaysOnTop(boolean)
2236 * @see Toolkit#isAlwaysOnTopSupported
2237 * @since 1.6
2238 */
2239 public boolean isAlwaysOnTopSupported() {
2240 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2241 }
2242
2243
2244 /**
2245 * Returns whether this window is an always-on-top window.
2246 * @return {@code true}, if the window is in always-on-top state,
2247 * {@code false} otherwise
2248 * @see #setAlwaysOnTop
2249 * @since 1.5
2250 */
2251 public final boolean isAlwaysOnTop() {
2252 return alwaysOnTop;
2253 }
2254
2255
2256 /**
2257 * Returns the child Component of this Window that has focus if this Window
2258 * is focused; returns null otherwise.
2259 *
2260 * @return the child Component with focus, or null if this Window is not
2261 * focused
2262 * @see #getMostRecentFocusOwner
2263 * @see #isFocused
2264 */
2265 public Component getFocusOwner() {
2266 return (isFocused())
2267 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2268 getFocusOwner()
2269 : null;
2270 }
2271
2272 /**
2273 * Returns the child Component of this Window that will receive the focus
2274 * when this Window is focused. If this Window is currently focused, this
2275 * method returns the same Component as {@code getFocusOwner()}. If
2276 * this Window is not focused, then the child Component that most recently
2277 * requested focus will be returned. If no child Component has ever
2278 * requested focus, and this is a focusable Window, then this Window's
2279 * initial focusable Component is returned. If no child Component has ever
2280 * requested focus, and this is a non-focusable Window, null is returned.
2281 *
2282 * @return the child Component that will receive focus when this Window is
2283 * focused
2284 * @see #getFocusOwner
2285 * @see #isFocused
2286 * @see #isFocusableWindow
2287 * @since 1.4
2288 */
2289 public Component getMostRecentFocusOwner() {
2290 if (isFocused()) {
2291 return getFocusOwner();
2292 } else {
2293 Component mostRecent =
2294 KeyboardFocusManager.getMostRecentFocusOwner(this);
2295 if (mostRecent != null) {
2296 return mostRecent;
2297 } else {
2298 return (isFocusableWindow())
2299 ? getFocusTraversalPolicy().getInitialComponent(this)
2300 : null;
2301 }
2302 }
2303 }
2304
2305 /**
2306 * Returns whether this Window is active. Only a Frame or a Dialog may be
2307 * active. The native windowing system may denote the active Window or its
2308 * children with special decorations, such as a highlighted title bar. The
2309 * active Window is always either the focused Window, or the first Frame or
2310 * Dialog that is an owner of the focused Window.
2311 *
2312 * @return whether this is the active Window.
2313 * @see #isFocused
2314 * @since 1.4
2315 */
2316 public boolean isActive() {
2317 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2318 getActiveWindow() == this);
2319 }
2320
2321 /**
2322 * Returns whether this Window is focused. If there exists a focus owner,
2323 * the focused Window is the Window that is, or contains, that focus owner.
2324 * If there is no focus owner, then no Window is focused.
2325 * <p>
2326 * If the focused Window is a Frame or a Dialog it is also the active
2327 * Window. Otherwise, the active Window is the first Frame or Dialog that
2328 * is an owner of the focused Window.
2329 *
2330 * @return whether this is the focused Window.
2331 * @see #isActive
2332 * @since 1.4
2333 */
2334 public boolean isFocused() {
2335 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2336 getGlobalFocusedWindow() == this);
2337 }
2338
2339 /**
2340 * Gets a focus traversal key for this Window. (See {@code
2341 * setFocusTraversalKeys} for a full description of each key.)
2342 * <p>
2343 * If the traversal key has not been explicitly set for this Window,
2344 * then this Window's parent's traversal key is returned. If the
2345 * traversal key has not been explicitly set for any of this Window's
2346 * ancestors, then the current KeyboardFocusManager's default traversal key
2347 * is returned.
2348 *
2349 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2350 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2351 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2352 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2353 * @return the AWTKeyStroke for the specified key
2354 * @see Container#setFocusTraversalKeys
2355 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2356 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2357 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2358 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2359 * @throws IllegalArgumentException if id is not one of
2360 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2361 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2362 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2363 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2364 * @since 1.4
2365 */
2366 @SuppressWarnings("unchecked")
2367 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2368 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2369 throw new IllegalArgumentException("invalid focus traversal key identifier");
2370 }
2371
2372 // Okay to return Set directly because it is an unmodifiable view
2373 @SuppressWarnings("rawtypes")
2374 Set keystrokes = (focusTraversalKeys != null)
2375 ? focusTraversalKeys[id]
2376 : null;
2377
2378 if (keystrokes != null) {
2379 return keystrokes;
2380 } else {
2381 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2382 getDefaultFocusTraversalKeys(id);
2383 }
2384 }
2385
2386 /**
2387 * Does nothing because Windows must always be roots of a focus traversal
2388 * cycle. The passed-in value is ignored.
2389 *
2390 * @param focusCycleRoot this value is ignored
2391 * @see #isFocusCycleRoot
2392 * @see Container#setFocusTraversalPolicy
2393 * @see Container#getFocusTraversalPolicy
2394 * @since 1.4
2395 */
2396 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2397 }
2398
2399 /**
2400 * Always returns {@code true} because all Windows must be roots of a
2401 * focus traversal cycle.
2402 *
2403 * @return {@code true}
2404 * @see #setFocusCycleRoot
2405 * @see Container#setFocusTraversalPolicy
2406 * @see Container#getFocusTraversalPolicy
2407 * @since 1.4
2408 */
2409 public final boolean isFocusCycleRoot() {
2410 return true;
2411 }
2412
2413 /**
2414 * Always returns {@code null} because Windows have no ancestors; they
2415 * represent the top of the Component hierarchy.
2416 *
2417 * @return {@code null}
2418 * @see Container#isFocusCycleRoot()
2419 * @since 1.4
2420 */
2421 public final Container getFocusCycleRootAncestor() {
2422 return null;
2423 }
2424
2425 /**
2426 * Returns whether this Window can become the focused Window, that is,
2427 * whether this Window or any of its subcomponents can become the focus
2428 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2429 * must be set to {@code true}. For a Window which is not a Frame or
2430 * Dialog to be focusable, its focusable Window state must be set to
2431 * {@code true}, its nearest owning Frame or Dialog must be
2432 * showing on the screen, and it must contain at least one Component in
2433 * its focus traversal cycle. If any of these conditions is not met, then
2434 * neither this Window nor any of its subcomponents can become the focus
2435 * owner.
2436 *
2437 * @return {@code true} if this Window can be the focused Window;
2438 * {@code false} otherwise
2439 * @see #getFocusableWindowState
2440 * @see #setFocusableWindowState
2441 * @see #isShowing
2442 * @see Component#isFocusable
2443 * @since 1.4
2444 */
2445 public final boolean isFocusableWindow() {
2446 // If a Window/Frame/Dialog was made non-focusable, then it is always
2447 // non-focusable.
2448 if (!getFocusableWindowState()) {
2449 return false;
2450 }
2451
2452 // All other tests apply only to Windows.
2453 if (this instanceof Frame || this instanceof Dialog) {
2454 return true;
2455 }
2456
2457 // A Window must have at least one Component in its root focus
2458 // traversal cycle to be focusable.
2459 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2460 return false;
2461 }
2462
2463 // A Window's nearest owning Frame or Dialog must be showing on the
2464 // screen.
2465 for (Window owner = getOwner(); owner != null;
2466 owner = owner.getOwner())
2467 {
2468 if (owner instanceof Frame || owner instanceof Dialog) {
2469 return owner.isShowing();
2470 }
2471 }
2472
2473 return false;
2474 }
2475
2476 /**
2477 * Returns whether this Window can become the focused Window if it meets
2478 * the other requirements outlined in {@code isFocusableWindow}. If
2479 * this method returns {@code false}, then
2480 * {@code isFocusableWindow} will return {@code false} as well.
2481 * If this method returns {@code true}, then
2482 * {@code isFocusableWindow} may return {@code true} or
2483 * {@code false} depending upon the other requirements which must be
2484 * met in order for a Window to be focusable.
2485 * <p>
2486 * By default, all Windows have a focusable Window state of
2487 * {@code true}.
2488 *
2489 * @return whether this Window can be the focused Window
2490 * @see #isFocusableWindow
2491 * @see #setFocusableWindowState
2492 * @see #isShowing
2493 * @see Component#setFocusable
2494 * @since 1.4
2495 */
2496 public boolean getFocusableWindowState() {
2497 return focusableWindowState;
2498 }
2499
2500 /**
2501 * Sets whether this Window can become the focused Window if it meets
2502 * the other requirements outlined in {@code isFocusableWindow}. If
2503 * this Window's focusable Window state is set to {@code false}, then
2504 * {@code isFocusableWindow} will return {@code false}. If this
2505 * Window's focusable Window state is set to {@code true}, then
2506 * {@code isFocusableWindow} may return {@code true} or
2507 * {@code false} depending upon the other requirements which must be
2508 * met in order for a Window to be focusable.
2509 * <p>
2510 * Setting a Window's focusability state to {@code false} is the
2511 * standard mechanism for an application to identify to the AWT a Window
2512 * which will be used as a floating palette or toolbar, and thus should be
2513 * a non-focusable Window.
2514 *
2515 * Setting the focusability state on a visible {@code Window}
2516 * can have a delayed effect on some platforms — the actual
2517 * change may happen only when the {@code Window} becomes
2518 * hidden and then visible again. To ensure consistent behavior
2519 * across platforms, set the {@code Window}'s focusable state
2520 * when the {@code Window} is invisible and then show it.
2521 *
2522 * @param focusableWindowState whether this Window can be the focused
2523 * Window
2524 * @see #isFocusableWindow
2525 * @see #getFocusableWindowState
2526 * @see #isShowing
2527 * @see Component#setFocusable
2528 * @since 1.4
2529 */
2530 public void setFocusableWindowState(boolean focusableWindowState) {
2531 boolean oldFocusableWindowState;
2532 synchronized (this) {
2533 oldFocusableWindowState = this.focusableWindowState;
2534 this.focusableWindowState = focusableWindowState;
2535 }
2536 WindowPeer peer = (WindowPeer)this.peer;
2537 if (peer != null) {
2538 peer.updateFocusableWindowState();
2539 }
2540 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2541 focusableWindowState);
2542 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2543 for (Window owner = getOwner();
2544 owner != null;
2545 owner = owner.getOwner())
2546 {
2547 Component toFocus =
2548 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2549 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2550 return;
2551 }
2552 }
2553 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2554 clearGlobalFocusOwnerPriv();
2555 }
2556 }
2557
2558 /**
2559 * Sets whether this window should receive focus on
2560 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2561 * or being moved to the front (with a call to {@link #toFront}).
2562 * <p>
2563 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2564 * (e.g. when showing an owner of the window makes the window to be shown).
2565 * {@link #toFront} may also be called indirectly (e.g. when
2566 * {@link #setVisible setVisible(true)} is called on already visible window).
2567 * In all such cases this property takes effect as well.
2568 * <p>
2569 * The value of the property is not inherited by owned windows.
2570 *
2571 * @param autoRequestFocus whether this window should be focused on
2572 * subsequently being shown or being moved to the front
2573 * @see #isAutoRequestFocus
2574 * @see #isFocusableWindow
2575 * @see #setVisible
2576 * @see #toFront
2577 * @since 1.7
2578 */
2579 public void setAutoRequestFocus(boolean autoRequestFocus) {
2580 this.autoRequestFocus = autoRequestFocus;
2581 }
2582
2583 /**
2584 * Returns whether this window should receive focus on subsequently being shown
2585 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2586 * (with a call to {@link #toFront}).
2587 * <p>
2588 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2589 *
2590 * @return {@code autoRequestFocus} value
2591 * @see #setAutoRequestFocus
2592 * @since 1.7
2593 */
2594 public boolean isAutoRequestFocus() {
2595 return autoRequestFocus;
2596 }
2597
2598 /**
2599 * Adds a PropertyChangeListener to the listener list. The listener is
2600 * registered for all bound properties of this class, including the
2601 * following:
2602 * <ul>
2603 * <li>this Window's font ("font")</li>
2604 * <li>this Window's background color ("background")</li>
2605 * <li>this Window's foreground color ("foreground")</li>
2606 * <li>this Window's focusability ("focusable")</li>
2607 * <li>this Window's focus traversal keys enabled state
2608 * ("focusTraversalKeysEnabled")</li>
2609 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2610 * ("forwardFocusTraversalKeys")</li>
2611 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2612 * ("backwardFocusTraversalKeys")</li>
2613 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2614 * ("upCycleFocusTraversalKeys")</li>
2615 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2616 * ("downCycleFocusTraversalKeys")</li>
2617 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2618 * </li>
2619 * <li>this Window's focusable Window state ("focusableWindowState")
2620 * </li>
2621 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2622 * </ul>
2623 * Note that if this Window is inheriting a bound property, then no
2624 * event will be fired in response to a change in the inherited property.
2625 * <p>
2626 * If listener is null, no exception is thrown and no action is performed.
2627 *
2628 * @param listener the PropertyChangeListener to be added
2629 *
2630 * @see Component#removePropertyChangeListener
2631 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2632 */
2633 public void addPropertyChangeListener(PropertyChangeListener listener) {
2634 super.addPropertyChangeListener(listener);
2635 }
2636
2637 /**
2638 * Adds a PropertyChangeListener to the listener list for a specific
2639 * property. The specified property may be user-defined, or one of the
2640 * following:
2641 * <ul>
2642 * <li>this Window's font ("font")</li>
2643 * <li>this Window's background color ("background")</li>
2644 * <li>this Window's foreground color ("foreground")</li>
2645 * <li>this Window's focusability ("focusable")</li>
2646 * <li>this Window's focus traversal keys enabled state
2647 * ("focusTraversalKeysEnabled")</li>
2648 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2649 * ("forwardFocusTraversalKeys")</li>
2650 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2651 * ("backwardFocusTraversalKeys")</li>
2652 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2653 * ("upCycleFocusTraversalKeys")</li>
2654 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2655 * ("downCycleFocusTraversalKeys")</li>
2656 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2657 * </li>
2658 * <li>this Window's focusable Window state ("focusableWindowState")
2659 * </li>
2660 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2661 * </ul>
2662 * Note that if this Window is inheriting a bound property, then no
2663 * event will be fired in response to a change in the inherited property.
2664 * <p>
2665 * If listener is null, no exception is thrown and no action is performed.
2666 *
2667 * @param propertyName one of the property names listed above
2668 * @param listener the PropertyChangeListener to be added
2669 *
2670 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2671 * @see Component#removePropertyChangeListener
2672 */
2673 public void addPropertyChangeListener(String propertyName,
2674 PropertyChangeListener listener) {
2675 super.addPropertyChangeListener(propertyName, listener);
2676 }
2677
2678 /**
2679 * Indicates if this container is a validate root.
2680 * <p>
2681 * {@code Window} objects are the validate roots, and, therefore, they
2682 * override this method to return {@code true}.
2683 *
2684 * @return {@code true}
2685 * @since 1.7
2686 * @see java.awt.Container#isValidateRoot
2687 */
2688 @Override
2689 public boolean isValidateRoot() {
2690 return true;
2691 }
2692
2693 /**
2694 * Dispatches an event to this window or one of its sub components.
2695 * @param e the event
2696 */
2697 void dispatchEventImpl(AWTEvent e) {
2698 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2699 invalidate();
2700 validate();
2701 }
2702 super.dispatchEventImpl(e);
2703 }
2704
2705 /**
2706 * @deprecated As of JDK version 1.1
2707 * replaced by {@code dispatchEvent(AWTEvent)}.
2708 */
2709 @Deprecated
2710 public boolean postEvent(Event e) {
2711 if (handleEvent(e)) {
2712 e.consume();
2713 return true;
2714 }
2715 return false;
2716 }
2717
2718 /**
2719 * Checks if this Window is showing on screen.
2720 * @see Component#setVisible
2721 */
2722 public boolean isShowing() {
2723 return visible;
2724 }
2725
2726 boolean isDisposing() {
2727 return disposing;
2728 }
2729
2730 /**
2731 * @deprecated As of J2SE 1.4, replaced by
2732 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2733 */
2734 @Deprecated
2735 public void applyResourceBundle(ResourceBundle rb) {
2736 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2737 }
2738
2739 /**
2740 * @deprecated As of J2SE 1.4, replaced by
2741 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2742 */
2743 @Deprecated
2744 public void applyResourceBundle(String rbName) {
2745 applyResourceBundle(ResourceBundle.getBundle(rbName));
2746 }
2747
2748 /*
2749 * Support for tracking all windows owned by this window
2750 */
2751 void addOwnedWindow(WeakReference<Window> weakWindow) {
2752 if (weakWindow != null) {
2753 synchronized(ownedWindowList) {
2754 // this if statement should really be an assert, but we don't
2755 // have asserts...
2756 if (!ownedWindowList.contains(weakWindow)) {
2757 ownedWindowList.addElement(weakWindow);
2758 }
2759 }
2760 }
2761 }
2762
2763 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2764 if (weakWindow != null) {
2765 // synchronized block not required since removeElement is
2766 // already synchronized
2767 ownedWindowList.removeElement(weakWindow);
2768 }
2769 }
2770
2771 void connectOwnedWindow(Window child) {
2772 child.parent = this;
2773 addOwnedWindow(child.weakThis);
2774 }
2775
2776 private void addToWindowList() {
2777 synchronized (Window.class) {
2778 @SuppressWarnings("unchecked")
2779 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2780 if (windowList == null) {
2781 windowList = new Vector<WeakReference<Window>>();
2782 appContext.put(Window.class, windowList);
2783 }
2784 windowList.add(weakThis);
2785 }
2786 }
2787
2788 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2789 synchronized (Window.class) {
2790 @SuppressWarnings("unchecked")
2791 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2792 if (windowList != null) {
2793 windowList.remove(weakThis);
2794 }
2795 }
2796 }
2797
2798 private void removeFromWindowList() {
2799 removeFromWindowList(appContext, weakThis);
2800 }
2801
2802 /**
2803 * Window type.
2804 *
2805 * Synchronization: ObjectLock
2806 */
2807 private Type type = Type.NORMAL;
2808
2809 /**
2810 * Sets the type of the window.
2811 *
2812 * This method can only be called while the window is not displayable.
2813 *
2814 * @throws IllegalComponentStateException if the window
2815 * is displayable.
2816 * @throws IllegalArgumentException if the type is {@code null}
2817 * @see Component#isDisplayable
2818 * @see #getType
2819 * @since 1.7
2820 */
2821 public void setType(Type type) {
2822 if (type == null) {
2823 throw new IllegalArgumentException("type should not be null.");
2824 }
2825 synchronized (getTreeLock()) {
2826 if (isDisplayable()) {
2827 throw new IllegalComponentStateException(
2828 "The window is displayable.");
2829 }
2830 synchronized (getObjectLock()) {
2831 this.type = type;
2832 }
2833 }
2834 }
2835
2836 /**
2837 * Returns the type of the window.
2838 *
2839 * @see #setType
2840 * @since 1.7
2841 */
2842 public Type getType() {
2843 synchronized (getObjectLock()) {
2844 return type;
2845 }
2846 }
2847
2848 /**
2849 * The window serialized data version.
2850 *
2851 * @serial
2852 */
2853 private int windowSerializedDataVersion = 2;
2854
2855 /**
2856 * Writes default serializable fields to stream. Writes
2857 * a list of serializable {@code WindowListener}s and
2858 * {@code WindowFocusListener}s as optional data.
2859 * Writes a list of child windows as optional data.
2860 * Writes a list of icon images as optional data
2861 *
2862 * @param s the {@code ObjectOutputStream} to write
2863 * @serialData {@code null} terminated sequence of
2864 * 0 or more pairs; the pair consists of a {@code String}
2865 * and {@code Object}; the {@code String}
2866 * indicates the type of object and is one of the following:
2867 * {@code windowListenerK} indicating a
2868 * {@code WindowListener} object;
2869 * {@code windowFocusWindowK} indicating a
2870 * {@code WindowFocusListener} object;
2871 * {@code ownedWindowK} indicating a child
2872 * {@code Window} object
2873 *
2874 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2875 * @see Component#windowListenerK
2876 * @see Component#windowFocusListenerK
2877 * @see Component#ownedWindowK
2878 * @see #readObject(ObjectInputStream)
2879 */
2880 private void writeObject(ObjectOutputStream s) throws IOException {
2881 synchronized (this) {
2882 // Update old focusMgr fields so that our object stream can be read
2883 // by previous releases
2884 focusMgr = new FocusManager();
2885 focusMgr.focusRoot = this;
2886 focusMgr.focusOwner = getMostRecentFocusOwner();
2887
2888 s.defaultWriteObject();
2889
2890 // Clear fields so that we don't keep extra references around
2891 focusMgr = null;
2892
2893 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2894 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2895 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2896 }
2897
2898 s.writeObject(null);
2899
2900 synchronized (ownedWindowList) {
2901 for (int i = 0; i < ownedWindowList.size(); i++) {
2902 Window child = ownedWindowList.elementAt(i).get();
2903 if (child != null) {
2904 s.writeObject(ownedWindowK);
2905 s.writeObject(child);
2906 }
2907 }
2908 }
2909 s.writeObject(null);
2910
2911 //write icon array
2912 if (icons != null) {
2913 for (Image i : icons) {
2914 if (i instanceof Serializable) {
2915 s.writeObject(i);
2916 }
2917 }
2918 }
2919 s.writeObject(null);
2920 }
2921
2922 //
2923 // Part of deserialization procedure to be called before
2924 // user's code.
2925 //
2926 private void initDeserializedWindow() {
2927 setWarningString();
2928 inputContextLock = new Object();
2929
2930 // Deserialized Windows are not yet visible.
2931 visible = false;
2932
2933 weakThis = new WeakReference<>(this);
2934
2935 anchor = new Object();
2936 sun.java2d.Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this));
2937
2938 addToWindowList();
2939 initGC(null);
2940 }
2941
2942 private void deserializeResources(ObjectInputStream s)
2943 throws ClassNotFoundException, IOException, HeadlessException {
2944 ownedWindowList = new Vector<>();
2945
2946 if (windowSerializedDataVersion < 2) {
2947 // Translate old-style focus tracking to new model. For 1.4 and
2948 // later releases, we'll rely on the Window's initial focusable
2949 // Component.
2950 if (focusMgr != null) {
2951 if (focusMgr.focusOwner != null) {
2952 KeyboardFocusManager.
2953 setMostRecentFocusOwner(this, focusMgr.focusOwner);
2954 }
2955 }
2956
2957 // This field is non-transient and relies on default serialization.
2958 // However, the default value is insufficient, so we need to set
2959 // it explicitly for object data streams prior to 1.4.
2960 focusableWindowState = true;
2961
2962
2963 }
2964
2965 Object keyOrNull;
2966 while(null != (keyOrNull = s.readObject())) {
2967 String key = ((String)keyOrNull).intern();
2968
2969 if (windowListenerK == key) {
2970 addWindowListener((WindowListener)(s.readObject()));
2971 } else if (windowFocusListenerK == key) {
2972 addWindowFocusListener((WindowFocusListener)(s.readObject()));
2973 } else if (windowStateListenerK == key) {
2974 addWindowStateListener((WindowStateListener)(s.readObject()));
2975 } else // skip value for unrecognized key
2976 s.readObject();
2977 }
2978
2979 try {
2980 while (null != (keyOrNull = s.readObject())) {
2981 String key = ((String)keyOrNull).intern();
2982
2983 if (ownedWindowK == key)
2984 connectOwnedWindow((Window) s.readObject());
2985
2986 else // skip value for unrecognized key
2987 s.readObject();
2988 }
2989
2990 //read icons
2991 Object obj = s.readObject(); //Throws OptionalDataException
2992 //for pre1.6 objects.
2993 icons = new ArrayList<Image>(); //Frame.readObject() assumes
2994 //pre1.6 version if icons is null.
2995 while (obj != null) {
2996 if (obj instanceof Image) {
2997 icons.add((Image)obj);
2998 }
2999 obj = s.readObject();
3000 }
3001 }
3002 catch (OptionalDataException e) {
3003 // 1.1 serialized form
3004 // ownedWindowList will be updated by Frame.readObject
3005 }
3006
3007 }
3008
3009 /**
3010 * Reads the {@code ObjectInputStream} and an optional
3011 * list of listeners to receive various events fired by
3012 * the component; also reads a list of
3013 * (possibly {@code null}) child windows.
3014 * Unrecognized keys or values will be ignored.
3015 *
3016 * @param s the {@code ObjectInputStream} to read
3017 * @exception HeadlessException if
3018 * {@code GraphicsEnvironment.isHeadless} returns
3019 * {@code true}
3020 * @see java.awt.GraphicsEnvironment#isHeadless
3021 * @see #writeObject
3022 */
3023 private void readObject(ObjectInputStream s)
3024 throws ClassNotFoundException, IOException, HeadlessException
3025 {
3026 GraphicsEnvironment.checkHeadless();
3027 initDeserializedWindow();
3028 ObjectInputStream.GetField f = s.readFields();
3029
3030 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3031 state = f.get("state", 0);
3032 focusableWindowState = f.get("focusableWindowState", true);
3033 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3034 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3035 // Note: 1.4 (or later) doesn't use focusMgr
3036 focusMgr = (FocusManager)f.get("focusMgr", null);
3037 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3038 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3039 setModalExclusionType(et); // since 6.0
3040 boolean aot = f.get("alwaysOnTop", false);
3041 if(aot) {
3042 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3043 }
3044 shape = (Shape)f.get("shape", null);
3045 opacity = (Float)f.get("opacity", 1.0f);
3046
3047 this.securityWarningWidth = 0;
3048 this.securityWarningHeight = 0;
3049 this.securityWarningPointX = 2.0;
3050 this.securityWarningPointY = 0.0;
3051 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3052 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3053
3054 deserializeResources(s);
3055 }
3056
3057 /*
3058 * --- Accessibility Support ---
3059 *
3060 */
3061
3062 /**
3063 * Gets the AccessibleContext associated with this Window.
3064 * For windows, the AccessibleContext takes the form of an
3065 * AccessibleAWTWindow.
3066 * A new AccessibleAWTWindow instance is created if necessary.
3067 *
3068 * @return an AccessibleAWTWindow that serves as the
3069 * AccessibleContext of this Window
3070 * @since 1.3
3071 */
3072 public AccessibleContext getAccessibleContext() {
3073 if (accessibleContext == null) {
3074 accessibleContext = new AccessibleAWTWindow();
3075 }
3076 return accessibleContext;
3077 }
3078
3079 /**
3080 * This class implements accessibility support for the
3081 * {@code Window} class. It provides an implementation of the
3082 * Java Accessibility API appropriate to window user-interface elements.
3083 * @since 1.3
3084 */
3085 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3086 {
3087 /*
3088 * JDK 1.3 serialVersionUID
3089 */
3090 private static final long serialVersionUID = 4215068635060671780L;
3091
3092 /**
3093 * Get the role of this object.
3094 *
3095 * @return an instance of AccessibleRole describing the role of the
3096 * object
3097 * @see javax.accessibility.AccessibleRole
3098 */
3099 public AccessibleRole getAccessibleRole() {
3100 return AccessibleRole.WINDOW;
3101 }
3102
3103 /**
3104 * Get the state of this object.
3105 *
3106 * @return an instance of AccessibleStateSet containing the current
3107 * state set of the object
3108 * @see javax.accessibility.AccessibleState
3109 */
3110 public AccessibleStateSet getAccessibleStateSet() {
3111 AccessibleStateSet states = super.getAccessibleStateSet();
3112 if (getFocusOwner() != null) {
3113 states.add(AccessibleState.ACTIVE);
3114 }
3115 return states;
3116 }
3117
3118 } // inner class AccessibleAWTWindow
3119
3120 @Override
3121 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3122 if (gc == null) {
3123 gc = GraphicsEnvironment.
3124 getLocalGraphicsEnvironment().
3125 getDefaultScreenDevice().
3126 getDefaultConfiguration();
3127 }
3128 synchronized (getTreeLock()) {
3129 super.setGraphicsConfiguration(gc);
3130 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3131 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3132 }
3133 }
3134 }
3135
3136 /**
3137 * Sets the location of the window relative to the specified
3138 * component according to the following scenarios.
3139 * <p>
3140 * The target screen mentioned below is a screen to which
3141 * the window should be placed after the setLocationRelativeTo
3142 * method is called.
3143 * <ul>
3144 * <li>If the component is {@code null}, or the {@code
3145 * GraphicsConfiguration} associated with this component is
3146 * {@code null}, the window is placed in the center of the
3147 * screen. The center point can be obtained with the {@link
3148 * GraphicsEnvironment#getCenterPoint
3149 * GraphicsEnvironment.getCenterPoint} method.
3150 * <li>If the component is not {@code null}, but it is not
3151 * currently showing, the window is placed in the center of
3152 * the target screen defined by the {@code
3153 * GraphicsConfiguration} associated with this component.
3154 * <li>If the component is not {@code null} and is shown on
3155 * the screen, then the window is located in such a way that
3156 * the center of the window coincides with the center of the
3157 * component.
3158 * </ul>
3159 * <p>
3160 * If the screens configuration does not allow the window to
3161 * be moved from one screen to another, then the window is
3162 * only placed at the location determined according to the
3163 * above conditions and its {@code GraphicsConfiguration} is
3164 * not changed.
3165 * <p>
3166 * <b>Note</b>: If the lower edge of the window is out of the screen,
3167 * then the window is placed to the side of the {@code Component}
3168 * that is closest to the center of the screen. So if the
3169 * component is on the right part of the screen, the window
3170 * is placed to its left, and vice versa.
3171 * <p>
3172 * If after the window location has been calculated, the upper,
3173 * left, or right edge of the window is out of the screen,
3174 * then the window is located in such a way that the upper,
3175 * left, or right edge of the window coincides with the
3176 * corresponding edge of the screen. If both left and right
3177 * edges of the window are out of the screen, the window is
3178 * placed at the left side of the screen. The similar placement
3179 * will occur if both top and bottom edges are out of the screen.
3180 * In that case, the window is placed at the top side of the screen.
3181 * <p>
3182 * The method changes the geometry-related data. Therefore,
3183 * the native windowing system may ignore such requests, or it may modify
3184 * the requested data, so that the {@code Window} object is placed and sized
3185 * in a way that corresponds closely to the desktop settings.
3186 *
3187 * @param c the component in relation to which the window's location
3188 * is determined
3189 * @see java.awt.GraphicsEnvironment#getCenterPoint
3190 * @since 1.4
3191 */
3192 public void setLocationRelativeTo(Component c) {
3193 // target location
3194 int dx = 0, dy = 0;
3195 // target GC
3196 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3197 Rectangle gcBounds = gc.getBounds();
3198
3199 Dimension windowSize = getSize();
3200
3201 // search a top-level of c
3202 Window componentWindow = SunToolkit.getContainingWindow(c);
3203 if ((c == null) || (componentWindow == null)) {
3204 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3205 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3206 gcBounds = gc.getBounds();
3207 Point centerPoint = ge.getCenterPoint();
3208 dx = centerPoint.x - windowSize.width / 2;
3209 dy = centerPoint.y - windowSize.height / 2;
3210 } else if (!c.isShowing()) {
3211 gc = componentWindow.getGraphicsConfiguration();
3212 gcBounds = gc.getBounds();
3213 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3214 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3215 } else {
3216 gc = componentWindow.getGraphicsConfiguration();
3217 gcBounds = gc.getBounds();
3218 Dimension compSize = c.getSize();
3219 Point compLocation = c.getLocationOnScreen();
3220 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3221 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3222
3223 // Adjust for bottom edge being offscreen
3224 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3225 dy = gcBounds.y + gcBounds.height - windowSize.height;
3226 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3227 dx = compLocation.x + compSize.width;
3228 } else {
3229 dx = compLocation.x - windowSize.width;
3230 }
3231 }
3232 }
3233
3234 // Avoid being placed off the edge of the screen:
3235 // bottom
3236 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3237 dy = gcBounds.y + gcBounds.height - windowSize.height;
3238 }
3239 // top
3240 if (dy < gcBounds.y) {
3241 dy = gcBounds.y;
3242 }
3243 // right
3244 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3245 dx = gcBounds.x + gcBounds.width - windowSize.width;
3246 }
3247 // left
3248 if (dx < gcBounds.x) {
3249 dx = gcBounds.x;
3250 }
3251
3252 setLocation(dx, dy);
3253 }
3254
3255 /**
3256 * Overridden from Component. Top-level Windows should not propagate a
3257 * MouseWheelEvent beyond themselves into their owning Windows.
3258 */
3259 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3260
3261 /**
3262 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3263 */
3264 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3265
3266 /**
3267 * Creates a new strategy for multi-buffering on this component.
3268 * Multi-buffering is useful for rendering performance. This method
3269 * attempts to create the best strategy available with the number of
3270 * buffers supplied. It will always create a {@code BufferStrategy}
3271 * with that number of buffers.
3272 * A page-flipping strategy is attempted first, then a blitting strategy
3273 * using accelerated buffers. Finally, an unaccelerated blitting
3274 * strategy is used.
3275 * <p>
3276 * Each time this method is called,
3277 * the existing buffer strategy for this component is discarded.
3278 * @param numBuffers number of buffers to create
3279 * @exception IllegalArgumentException if numBuffers is less than 1.
3280 * @exception IllegalStateException if the component is not displayable
3281 * @see #isDisplayable
3282 * @see #getBufferStrategy
3283 * @since 1.4
3284 */
3285 public void createBufferStrategy(int numBuffers) {
3286 super.createBufferStrategy(numBuffers);
3287 }
3288
3289 /**
3290 * Creates a new strategy for multi-buffering on this component with the
3291 * required buffer capabilities. This is useful, for example, if only
3292 * accelerated memory or page flipping is desired (as specified by the
3293 * buffer capabilities).
3294 * <p>
3295 * Each time this method
3296 * is called, the existing buffer strategy for this component is discarded.
3297 * @param numBuffers number of buffers to create, including the front buffer
3298 * @param caps the required capabilities for creating the buffer strategy;
3299 * cannot be {@code null}
3300 * @exception AWTException if the capabilities supplied could not be
3301 * supported or met; this may happen, for example, if there is not enough
3302 * accelerated memory currently available, or if page flipping is specified
3303 * but not possible.
3304 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3305 * caps is {@code null}
3306 * @see #getBufferStrategy
3307 * @since 1.4
3308 */
3309 public void createBufferStrategy(int numBuffers,
3310 BufferCapabilities caps) throws AWTException {
3311 super.createBufferStrategy(numBuffers, caps);
3312 }
3313
3314 /**
3315 * Returns the {@code BufferStrategy} used by this component. This
3316 * method will return null if a {@code BufferStrategy} has not yet
3317 * been created or has been disposed.
3318 *
3319 * @return the buffer strategy used by this component
3320 * @see #createBufferStrategy
3321 * @since 1.4
3322 */
3323 public BufferStrategy getBufferStrategy() {
3324 return super.getBufferStrategy();
3325 }
3326
3327 Component getTemporaryLostComponent() {
3328 return temporaryLostComponent;
3329 }
3330 Component setTemporaryLostComponent(Component component) {
3331 Component previousComp = temporaryLostComponent;
3332 // Check that "component" is an acceptable focus owner and don't store it otherwise
3333 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3334 if (component == null || component.canBeFocusOwner()) {
3335 temporaryLostComponent = component;
3336 } else {
3337 temporaryLostComponent = null;
3338 }
3339 return previousComp;
3340 }
3341
3342 /**
3343 * Checks whether this window can contain focus owner.
3344 * Verifies that it is focusable and as container it can container focus owner.
3345 * @since 1.5
3346 */
3347 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3348 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3349 }
3350
3351 private boolean locationByPlatform = locationByPlatformProp;
3352
3353
3354 /**
3355 * Sets whether this Window should appear at the default location for the
3356 * native windowing system or at the current location (returned by
3357 * {@code getLocation}) the next time the Window is made visible.
3358 * This behavior resembles a native window shown without programmatically
3359 * setting its location. Most windowing systems cascade windows if their
3360 * locations are not explicitly set. The actual location is determined once the
3361 * window is shown on the screen.
3362 * <p>
3363 * This behavior can also be enabled by setting the System Property
3364 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3365 * take precedence.
3366 * <p>
3367 * Calls to {@code setVisible}, {@code setLocation} and
3368 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3369 * this property of the Window.
3370 * <p>
3371 * For example, after the following code is executed:
3372 * <pre><blockquote>
3373 * setLocationByPlatform(true);
3374 * setVisible(true);
3375 * boolean flag = isLocationByPlatform();
3376 * </blockquote></pre>
3377 * The window will be shown at platform's default location and
3378 * {@code flag} will be {@code false}.
3379 * <p>
3380 * In the following sample:
3381 * <pre><blockquote>
3382 * setLocationByPlatform(true);
3383 * setLocation(10, 10);
3384 * boolean flag = isLocationByPlatform();
3385 * setVisible(true);
3386 * </blockquote></pre>
3387 * The window will be shown at (10, 10) and {@code flag} will be
3388 * {@code false}.
3389 *
3390 * @param locationByPlatform {@code true} if this Window should appear
3391 * at the default location, {@code false} if at the current location
3392 * @throws {@code IllegalComponentStateException} if the window
3393 * is showing on screen and locationByPlatform is {@code true}.
3394 * @see #setLocation
3395 * @see #isShowing
3396 * @see #setVisible
3397 * @see #isLocationByPlatform
3398 * @see java.lang.System#getProperty(String)
3399 * @since 1.5
3400 */
3401 public void setLocationByPlatform(boolean locationByPlatform) {
3402 synchronized (getTreeLock()) {
3403 if (locationByPlatform && isShowing()) {
3404 throw new IllegalComponentStateException("The window is showing on screen.");
3405 }
3406 this.locationByPlatform = locationByPlatform;
3407 }
3408 }
3409
3410 /**
3411 * Returns {@code true} if this Window will appear at the default location
3412 * for the native windowing system the next time this Window is made visible.
3413 * This method always returns {@code false} if the Window is showing on the
3414 * screen.
3415 *
3416 * @return whether this Window will appear at the default location
3417 * @see #setLocationByPlatform
3418 * @see #isShowing
3419 * @since 1.5
3420 */
3421 public boolean isLocationByPlatform() {
3422 synchronized (getTreeLock()) {
3423 return locationByPlatform;
3424 }
3425 }
3426
3427 /**
3428 * {@inheritDoc}
3429 * <p>
3430 * The {@code width} or {@code height} values
3431 * are automatically enlarged if either is less than
3432 * the minimum size as specified by previous call to
3433 * {@code setMinimumSize}.
3434 * <p>
3435 * The method changes the geometry-related data. Therefore,
3436 * the native windowing system may ignore such requests, or it may modify
3437 * the requested data, so that the {@code Window} object is placed and sized
3438 * in a way that corresponds closely to the desktop settings.
3439 *
3440 * @see #getBounds
3441 * @see #setLocation(int, int)
3442 * @see #setLocation(Point)
3443 * @see #setSize(int, int)
3444 * @see #setSize(Dimension)
3445 * @see #setMinimumSize
3446 * @see #setLocationByPlatform
3447 * @see #isLocationByPlatform
3448 * @since 1.6
3449 */
3450 public void setBounds(int x, int y, int width, int height) {
3451 synchronized (getTreeLock()) {
3452 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3453 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3454 {
3455 locationByPlatform = false;
3456 }
3457 super.setBounds(x, y, width, height);
3458 }
3459 }
3460
3461 /**
3462 * {@inheritDoc}
3463 * <p>
3464 * The {@code r.width} or {@code r.height} values
3465 * will be automatically enlarged if either is less than
3466 * the minimum size as specified by previous call to
3467 * {@code setMinimumSize}.
3468 * <p>
3469 * The method changes the geometry-related data. Therefore,
3470 * the native windowing system may ignore such requests, or it may modify
3471 * the requested data, so that the {@code Window} object is placed and sized
3472 * in a way that corresponds closely to the desktop settings.
3473 *
3474 * @see #getBounds
3475 * @see #setLocation(int, int)
3476 * @see #setLocation(Point)
3477 * @see #setSize(int, int)
3478 * @see #setSize(Dimension)
3479 * @see #setMinimumSize
3480 * @see #setLocationByPlatform
3481 * @see #isLocationByPlatform
3482 * @since 1.6
3483 */
3484 public void setBounds(Rectangle r) {
3485 setBounds(r.x, r.y, r.width, r.height);
3486 }
3487
3488 /**
3489 * Determines whether this component will be displayed on the screen.
3490 * @return {@code true} if the component and all of its ancestors
3491 * until a toplevel window are visible, {@code false} otherwise
3492 */
3493 boolean isRecursivelyVisible() {
3494 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3495 // We're overriding isRecursivelyVisible to implement this policy.
3496 return visible;
3497 }
3498
3499
3500 // ******************** SHAPES & TRANSPARENCY CODE ********************
3501
3502 /**
3503 * Returns the opacity of the window.
3504 *
3505 * @return the opacity of the window
3506 *
3507 * @see Window#setOpacity(float)
3508 * @see GraphicsDevice.WindowTranslucency
3509 *
3510 * @since 1.7
3511 */
3512 public float getOpacity() {
3513 synchronized (getTreeLock()) {
3514 return opacity;
3515 }
3516 }
3517
3518 /**
3519 * Sets the opacity of the window.
3520 * <p>
3521 * The opacity value is in the range [0..1]. Note that setting the opacity
3522 * level of 0 may or may not disable the mouse event handling on this
3523 * window. This is a platform-dependent behavior.
3524 * <p>
3525 * The following conditions must be met in order to set the opacity value
3526 * less than {@code 1.0f}:
3527 * <ul>
3528 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3529 * translucency must be supported by the underlying system
3530 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3531 * and {@link Dialog#setUndecorated})
3532 * <li>The window must not be in full-screen mode (see {@link
3533 * GraphicsDevice#setFullScreenWindow(Window)})
3534 * </ul>
3535 * <p>
3536 * If the requested opacity value is less than {@code 1.0f}, and any of the
3537 * above conditions are not met, the window opacity will not change,
3538 * and the {@code IllegalComponentStateException} will be thrown.
3539 * <p>
3540 * The translucency levels of individual pixels may also be effected by the
3541 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3542 * current shape of this window (see {@link #setShape(Shape)}).
3543 *
3544 * @param opacity the opacity level to set to the window
3545 *
3546 * @throws IllegalArgumentException if the opacity is out of the range
3547 * [0..1]
3548 * @throws IllegalComponentStateException if the window is decorated and
3549 * the opacity is less than {@code 1.0f}
3550 * @throws IllegalComponentStateException if the window is in full screen
3551 * mode, and the opacity is less than {@code 1.0f}
3552 * @throws UnsupportedOperationException if the {@code
3553 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3554 * translucency is not supported and the opacity is less than
3555 * {@code 1.0f}
3556 *
3557 * @see Window#getOpacity
3558 * @see Window#setBackground(Color)
3559 * @see Window#setShape(Shape)
3560 * @see Frame#isUndecorated
3561 * @see Dialog#isUndecorated
3562 * @see GraphicsDevice.WindowTranslucency
3563 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3564 *
3565 * @since 1.7
3566 */
3567 public void setOpacity(float opacity) {
3568 synchronized (getTreeLock()) {
3569 if (opacity < 0.0f || opacity > 1.0f) {
3570 throw new IllegalArgumentException(
3571 "The value of opacity should be in the range [0.0f .. 1.0f].");
3572 }
3573 if (opacity < 1.0f) {
3574 GraphicsConfiguration gc = getGraphicsConfiguration();
3575 GraphicsDevice gd = gc.getDevice();
3576 if (gc.getDevice().getFullScreenWindow() == this) {
3577 throw new IllegalComponentStateException(
3578 "Setting opacity for full-screen window is not supported.");
3579 }
3580 if (!gd.isWindowTranslucencySupported(
3581 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3582 {
3583 throw new UnsupportedOperationException(
3584 "TRANSLUCENT translucency is not supported.");
3585 }
3586 }
3587 this.opacity = opacity;
3588 WindowPeer peer = (WindowPeer)getPeer();
3589 if (peer != null) {
3590 peer.setOpacity(opacity);
3591 }
3592 }
3593 }
3594
3595 /**
3596 * Returns the shape of the window.
3597 *
3598 * The value returned by this method may not be the same as
3599 * previously set with {@code setShape(shape)}, but it is guaranteed
3600 * to represent the same shape.
3601 *
3602 * @return the shape of the window or {@code null} if no
3603 * shape is specified for the window
3604 *
3605 * @see Window#setShape(Shape)
3606 * @see GraphicsDevice.WindowTranslucency
3607 *
3608 * @since 1.7
3609 */
3610 public Shape getShape() {
3611 synchronized (getTreeLock()) {
3612 return shape == null ? null : new Path2D.Float(shape);
3613 }
3614 }
3615
3616 /**
3617 * Sets the shape of the window.
3618 * <p>
3619 * Setting a shape cuts off some parts of the window. Only the parts that
3620 * belong to the given {@link Shape} remain visible and clickable. If
3621 * the shape argument is {@code null}, this method restores the default
3622 * shape, making the window rectangular on most platforms.
3623 * <p>
3624 * The following conditions must be met to set a non-null shape:
3625 * <ul>
3626 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3627 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3628 * underlying system
3629 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3630 * and {@link Dialog#setUndecorated})
3631 * <li>The window must not be in full-screen mode (see {@link
3632 * GraphicsDevice#setFullScreenWindow(Window)})
3633 * </ul>
3634 * <p>
3635 * If the requested shape is not {@code null}, and any of the above
3636 * conditions are not met, the shape of this window will not change,
3637 * and either the {@code UnsupportedOperationException} or {@code
3638 * IllegalComponentStateException} will be thrown.
3639 * <p>
3640 * The tranlucency levels of individual pixels may also be effected by the
3641 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3642 * opacity value (see {@link #setOpacity(float)}). See {@link
3643 * GraphicsDevice.WindowTranslucency} for more details.
3644 *
3645 * @param shape the shape to set to the window
3646 *
3647 * @throws IllegalComponentStateException if the shape is not {@code
3648 * null} and the window is decorated
3649 * @throws IllegalComponentStateException if the shape is not {@code
3650 * null} and the window is in full-screen mode
3651 * @throws UnsupportedOperationException if the shape is not {@code
3652 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3653 * PERPIXEL_TRANSPARENT} translucency is not supported
3654 *
3655 * @see Window#getShape()
3656 * @see Window#setBackground(Color)
3657 * @see Window#setOpacity(float)
3658 * @see Frame#isUndecorated
3659 * @see Dialog#isUndecorated
3660 * @see GraphicsDevice.WindowTranslucency
3661 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3662 *
3663 * @since 1.7
3664 */
3665 public void setShape(Shape shape) {
3666 synchronized (getTreeLock()) {
3667 if (shape != null) {
3668 GraphicsConfiguration gc = getGraphicsConfiguration();
3669 GraphicsDevice gd = gc.getDevice();
3670 if (gc.getDevice().getFullScreenWindow() == this) {
3671 throw new IllegalComponentStateException(
3672 "Setting shape for full-screen window is not supported.");
3673 }
3674 if (!gd.isWindowTranslucencySupported(
3675 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3676 {
3677 throw new UnsupportedOperationException(
3678 "PERPIXEL_TRANSPARENT translucency is not supported.");
3679 }
3680 }
3681 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3682 WindowPeer peer = (WindowPeer)getPeer();
3683 if (peer != null) {
3684 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3685 }
3686 }
3687 }
3688
3689 /**
3690 * Gets the background color of this window.
3691 * <p>
3692 * Note that the alpha component of the returned color indicates whether
3693 * the window is in the non-opaque (per-pixel translucent) mode.
3694 *
3695 * @return this component's background color
3696 *
3697 * @see Window#setBackground(Color)
3698 * @see Window#isOpaque
3699 * @see GraphicsDevice.WindowTranslucency
3700 */
3701 @Override
3702 public Color getBackground() {
3703 return super.getBackground();
3704 }
3705
3706 /**
3707 * Sets the background color of this window.
3708 * <p>
3709 * If the windowing system supports the {@link
3710 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3711 * tranclucency, the alpha component of the given background color
3712 * may effect the mode of operation for this window: it indicates whether
3713 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3714 * (alpha is less than {@code 1.0f}). If the given background color is
3715 * {@code null}, the window is considered completely opaque.
3716 * <p>
3717 * All the following conditions must be met to enable the per-pixel
3718 * transparency mode for this window:
3719 * <ul>
3720 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3721 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3722 * device where this window is located
3723 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3724 * and {@link Dialog#setUndecorated})
3725 * <li>The window must not be in full-screen mode (see {@link
3726 * GraphicsDevice#setFullScreenWindow(Window)})
3727 * </ul>
3728 * <p>
3729 * If the alpha component of the requested background color is less than
3730 * {@code 1.0f}, and any of the above conditions are not met, the background
3731 * color of this window will not change, the alpha component of the given
3732 * background color will not affect the mode of operation for this window,
3733 * and either the {@code UnsupportedOperationException} or {@code
3734 * IllegalComponentStateException} will be thrown.
3735 * <p>
3736 * When the window is per-pixel translucent, the drawing sub-system
3737 * respects the alpha value of each individual pixel. If a pixel gets
3738 * painted with the alpha color component equal to zero, it becomes
3739 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3740 * pixel is fully opaque. Interim values of the alpha color component make
3741 * the pixel semi-transparent. In this mode, the background of the window
3742 * gets painted with the alpha value of the given background color. If the
3743 * alpha value of the argument of this method is equal to {@code 0}, the
3744 * background is not painted at all.
3745 * <p>
3746 * The actual level of translucency of a given pixel also depends on window
3747 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3748 * this window (see {@link #setShape(Shape)}).
3749 * <p>
3750 * Note that painting a pixel with the alpha value of {@code 0} may or may
3751 * not disable the mouse event handling on this pixel. This is a
3752 * platform-dependent behavior. To make sure the mouse events do not get
3753 * dispatched to a particular pixel, the pixel must be excluded from the
3754 * shape of the window.
3755 * <p>
3756 * Enabling the per-pixel translucency mode may change the graphics
3757 * configuration of this window due to the native platform requirements.
3758 *
3759 * @param bgColor the color to become this window's background color.
3760 *
3761 * @throws IllegalComponentStateException if the alpha value of the given
3762 * background color is less than {@code 1.0f} and the window is decorated
3763 * @throws IllegalComponentStateException if the alpha value of the given
3764 * background color is less than {@code 1.0f} and the window is in
3765 * full-screen mode
3766 * @throws UnsupportedOperationException if the alpha value of the given
3767 * background color is less than {@code 1.0f} and {@link
3768 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3769 * PERPIXEL_TRANSLUCENT} translucency is not supported
3770 *
3771 * @see Window#getBackground
3772 * @see Window#isOpaque
3773 * @see Window#setOpacity(float)
3774 * @see Window#setShape(Shape)
3775 * @see Frame#isUndecorated
3776 * @see Dialog#isUndecorated
3777 * @see GraphicsDevice.WindowTranslucency
3778 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3779 * @see GraphicsConfiguration#isTranslucencyCapable()
3780 */
3781 @Override
3782 public void setBackground(Color bgColor) {
3783 Color oldBg = getBackground();
3784 super.setBackground(bgColor);
3785 if (oldBg != null && oldBg.equals(bgColor)) {
3786 return;
3787 }
3788 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3789 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3790 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3791 GraphicsConfiguration gc = getGraphicsConfiguration();
3792 GraphicsDevice gd = gc.getDevice();
3793 if (gc.getDevice().getFullScreenWindow() == this) {
3794 throw new IllegalComponentStateException(
3795 "Making full-screen window non opaque is not supported.");
3796 }
3797 if (!gc.isTranslucencyCapable()) {
3798 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3799 if (capableGC == null) {
3800 throw new UnsupportedOperationException(
3801 "PERPIXEL_TRANSLUCENT translucency is not supported");
3802 }
3803 setGraphicsConfiguration(capableGC);
3804 }
3805 setLayersOpaque(this, false);
3806 } else if ((oldAlpha < 255) && (alpha == 255)) {
3807 setLayersOpaque(this, true);
3808 }
3809 WindowPeer peer = (WindowPeer)getPeer();
3810 if (peer != null) {
3811 peer.setOpaque(alpha == 255);
3812 }
3813 }
3814
3815 /**
3816 * Indicates if the window is currently opaque.
3817 * <p>
3818 * The method returns {@code false} if the background color of the window
3819 * is not {@code null} and the alpha component of the color is less than
3820 * {@code 1.0f}. The method returns {@code true} otherwise.
3821 *
3822 * @return {@code true} if the window is opaque, {@code false} otherwise
3823 *
3824 * @see Window#getBackground
3825 * @see Window#setBackground(Color)
3826 * @since 1.7
3827 */
3828 @Override
3829 public boolean isOpaque() {
3830 Color bg = getBackground();
3831 return bg != null ? bg.getAlpha() == 255 : true;
3832 }
3833
3834 private void updateWindow() {
3835 synchronized (getTreeLock()) {
3836 WindowPeer peer = (WindowPeer)getPeer();
3837 if (peer != null) {
3838 peer.updateWindow();
3839 }
3840 }
3841 }
3842
3843 /**
3844 * {@inheritDoc}
3845 *
3846 * @since 1.7
3847 */
3848 @Override
3849 public void paint(Graphics g) {
3850 if (!isOpaque()) {
3851 Graphics gg = g.create();
3852 try {
3853 if (gg instanceof Graphics2D) {
3854 gg.setColor(getBackground());
3855 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3856 gg.fillRect(0, 0, getWidth(), getHeight());
3857 }
3858 } finally {
3859 gg.dispose();
3860 }
3861 }
3862 super.paint(g);
3863 }
3864
3865 private static void setLayersOpaque(Component component, boolean isOpaque) {
3866 // Shouldn't use instanceof to avoid loading Swing classes
3867 // if it's a pure AWT application.
3868 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3869 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3870 javax.swing.JRootPane root = rpc.getRootPane();
3871 javax.swing.JLayeredPane lp = root.getLayeredPane();
3872 Container c = root.getContentPane();
3873 javax.swing.JComponent content =
3874 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3875 lp.setOpaque(isOpaque);
3876 root.setOpaque(isOpaque);
3877 if (content != null) {
3878 content.setOpaque(isOpaque);
3879
3880 // Iterate down one level to see whether we have a JApplet
3881 // (which is also a RootPaneContainer) which requires processing
3882 int numChildren = content.getComponentCount();
3883 if (numChildren > 0) {
3884 Component child = content.getComponent(0);
3885 // It's OK to use instanceof here because we've
3886 // already loaded the RootPaneContainer class by now
3887 if (child instanceof javax.swing.RootPaneContainer) {
3888 setLayersOpaque(child, isOpaque);
3889 }
3890 }
3891 }
3892 }
3893 }
3894
3895
3896 // ************************** MIXING CODE *******************************
3897
3898 // A window has an owner, but it does NOT have a container
3899 @Override
3900 final Container getContainer() {
3901 return null;
3902 }
3903
3904 /**
3905 * Applies the shape to the component
3906 * @param shape Shape to be applied to the component
3907 */
3908 @Override
3909 final void applyCompoundShape(Region shape) {
3910 // The shape calculated by mixing code is not intended to be applied
3911 // to windows or frames
3912 }
3913
3914 @Override
3915 final void applyCurrentShape() {
3916 // The shape calculated by mixing code is not intended to be applied
3917 // to windows or frames
3918 }
3919
3920 @Override
3921 final void mixOnReshaping() {
3922 // The shape calculated by mixing code is not intended to be applied
3923 // to windows or frames
3924 }
3925
3926 @Override
3927 final Point getLocationOnWindow() {
3928 return new Point(0, 0);
3929 }
3930
3931 // ****************** END OF MIXING CODE ********************************
3932
3933 /**
3934 * Limit the given double value with the given range.
3935 */
3936 private static double limit(double value, double min, double max) {
3937 value = Math.max(value, min);
3938 value = Math.min(value, max);
3939 return value;
3940 }
3941
3942 /**
3943 * Calculate the position of the security warning.
3944 *
3945 * This method gets the window location/size as reported by the native
3946 * system since the locally cached values may represent outdated data.
3947 *
3948 * The method is used from the native code, or via AWTAccessor.
3949 *
3950 * NOTE: this method is invoked on the toolkit thread, and therefore is not
3951 * supposed to become public/user-overridable.
3952 */
3953 private Point2D calculateSecurityWarningPosition(double x, double y,
3954 double w, double h)
3955 {
3956 // The position according to the spec of SecurityWarning.setPosition()
3957 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
3958 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
3959
3960 // First, make sure the warning is not too far from the window bounds
3961 wx = Window.limit(wx,
3962 x - securityWarningWidth - 2,
3963 x + w + 2);
3964 wy = Window.limit(wy,
3965 y - securityWarningHeight - 2,
3966 y + h + 2);
3967
3968 // Now make sure the warning window is visible on the screen
3969 GraphicsConfiguration graphicsConfig =
3970 getGraphicsConfiguration_NoClientCode();
3971 Rectangle screenBounds = graphicsConfig.getBounds();
3972 Insets screenInsets =
3973 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
3974
3975 wx = Window.limit(wx,
3976 screenBounds.x + screenInsets.left,
3977 screenBounds.x + screenBounds.width - screenInsets.right
3978 - securityWarningWidth);
3979 wy = Window.limit(wy,
3980 screenBounds.y + screenInsets.top,
3981 screenBounds.y + screenBounds.height - screenInsets.bottom
3982 - securityWarningHeight);
3983
3984 return new Point2D.Double(wx, wy);
3985 }
3986
3987 static {
3988 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
3989 public float getOpacity(Window window) {
3990 return window.opacity;
3991 }
3992 public void setOpacity(Window window, float opacity) {
3993 window.setOpacity(opacity);
3994 }
3995 public Shape getShape(Window window) {
3996 return window.getShape();
3997 }
3998 public void setShape(Window window, Shape shape) {
3999 window.setShape(shape);
4000 }
4001 public void setOpaque(Window window, boolean opaque) {
4002 Color bg = window.getBackground();
4003 if (bg == null) {
4004 bg = new Color(0, 0, 0, 0);
4005 }
4006 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4007 opaque ? 255 : 0));
4008 }
4009 public void updateWindow(Window window) {
4010 window.updateWindow();
4011 }
4012
4013 public Dimension getSecurityWarningSize(Window window) {
4014 return new Dimension(window.securityWarningWidth,
4015 window.securityWarningHeight);
4016 }
4017
4018 public void setSecurityWarningSize(Window window, int width, int height)
4019 {
4020 window.securityWarningWidth = width;
4021 window.securityWarningHeight = height;
4022 }
4023
4024 public void setSecurityWarningPosition(Window window,
4025 Point2D point, float alignmentX, float alignmentY)
4026 {
4027 window.securityWarningPointX = point.getX();
4028 window.securityWarningPointY = point.getY();
4029 window.securityWarningAlignmentX = alignmentX;
4030 window.securityWarningAlignmentY = alignmentY;
4031
4032 synchronized (window.getTreeLock()) {
4033 WindowPeer peer = (WindowPeer)window.getPeer();
4034 if (peer != null) {
4035 peer.repositionSecurityWarning();
4036 }
4037 }
4038 }
4039
4040 public Point2D calculateSecurityWarningPosition(Window window,
4041 double x, double y, double w, double h)
4042 {
4043 return window.calculateSecurityWarningPosition(x, y, w, h);
4044 }
4045
4046 public void setLWRequestStatus(Window changed, boolean status) {
4047 changed.syncLWRequests = status;
4048 }
4049
4050 public boolean isAutoRequestFocus(Window w) {
4051 return w.autoRequestFocus;
4052 }
4053
4054 public boolean isTrayIconWindow(Window w) {
4055 return w.isTrayIconWindow;
4056 }
4057
4058 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4059 w.isTrayIconWindow = isTrayIconWindow;
4060 }
4061 }); // WindowAccessor
4062 } // static
4063
4064 // a window doesn't need to be updated in the Z-order.
4065 @Override
4066 void updateZOrder() {}
4067
4068 } // class Window
4069
4070
4071 /**
4072 * This class is no longer used, but is maintained for Serialization
4073 * backward-compatibility.
4074 */
4075 class FocusManager implements java.io.Serializable {
4076 Container focusRoot;
4077 Component focusOwner;
4078
4079 /*
4080 * JDK 1.1 serialVersionUID
4081 */
4082 static final long serialVersionUID = 2491878825643557906L;
4083 }
--- EOF ---