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