1 /*
2 * Copyright (c) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.awt;
27
28 import java.awt.event.ComponentEvent;
29 import java.awt.event.FocusEvent;
30 import java.awt.event.KeyEvent;
31 import java.awt.event.MouseWheelEvent;
32 import java.awt.event.WindowEvent;
33 import java.awt.event.WindowFocusListener;
34 import java.awt.event.WindowListener;
35 import java.awt.event.WindowStateListener;
36 import java.awt.geom.Path2D;
37 import java.awt.geom.Point2D;
38 import java.awt.im.InputContext;
39 import java.awt.image.BufferStrategy;
40 import java.awt.peer.ComponentPeer;
41 import java.awt.peer.WindowPeer;
42 import java.beans.PropertyChangeListener;
43 import java.io.IOException;
44 import java.io.ObjectInputStream;
45 import java.io.ObjectOutputStream;
46 import java.io.OptionalDataException;
47 import java.io.Serializable;
48 import java.lang.ref.WeakReference;
49 import java.lang.reflect.InvocationTargetException;
50 import java.security.AccessController;
51 import java.util.ArrayList;
52 import java.util.Arrays;
53 import java.util.EventListener;
54 import java.util.Locale;
55 import java.util.ResourceBundle;
56 import java.util.Set;
57 import java.util.Vector;
58 import java.util.concurrent.atomic.AtomicBoolean;
59
60 import javax.accessibility.Accessible;
61 import javax.accessibility.AccessibleContext;
62 import javax.accessibility.AccessibleRole;
63 import javax.accessibility.AccessibleState;
64 import javax.accessibility.AccessibleStateSet;
65
66 import sun.awt.AWTAccessor;
67 import sun.awt.AWTPermissions;
68 import sun.awt.AppContext;
69 import sun.awt.DebugSettings;
70 import sun.awt.SunToolkit;
71 import sun.awt.util.IdentityArrayList;
72 import sun.java2d.pipe.Region;
73 import sun.security.action.GetPropertyAction;
74 import sun.util.logging.PlatformLogger;
75
76 /**
77 * A {@code Window} object is a top-level window with no borders and no
78 * menubar.
79 * The default layout for a window is {@code BorderLayout}.
80 * <p>
81 * A window must have either a frame, dialog, or another window defined as its
82 * owner when it's constructed.
83 * <p>
84 * In a multi-screen environment, you can create a {@code Window}
85 * on a different screen device by constructing the {@code Window}
86 * with {@link #Window(Window, GraphicsConfiguration)}. The
87 * {@code GraphicsConfiguration} object is one of the
88 * {@code GraphicsConfiguration} objects of the target screen device.
89 * <p>
90 * In a virtual device multi-screen environment in which the desktop
91 * area could span multiple physical screen devices, the bounds of all
92 * configurations are relative to the virtual device coordinate system.
93 * The origin of the virtual-coordinate system is at the upper left-hand
94 * corner of the primary physical screen. Depending on the location of
95 * the primary screen in the virtual device, negative coordinates are
96 * possible, as shown in the following figure.
97 * <p>
98 * <img src="doc-files/MultiScreen.gif"
99 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
100 * style="float:center; margin: 7px 10px;">
101 * <p>
102 * In such an environment, when calling {@code setLocation},
103 * you must pass a virtual coordinate to this method. Similarly,
104 * calling {@code getLocationOnScreen} on a {@code Window} returns
105 * virtual device coordinates. Call the {@code getBounds} method
106 * of a {@code GraphicsConfiguration} to find its origin in the virtual
107 * coordinate system.
108 * <p>
109 * The following code sets the location of a {@code Window}
110 * at (10, 10) relative to the origin of the physical screen
111 * of the corresponding {@code GraphicsConfiguration}. If the
112 * bounds of the {@code GraphicsConfiguration} is not taken
113 * into account, the {@code Window} location would be set
114 * at (10, 10) relative to the virtual-coordinate system and would appear
115 * on the primary physical screen, which might be different from the
116 * physical screen of the specified {@code GraphicsConfiguration}.
117 *
118 * <pre>
119 * Window w = new Window(Window owner, GraphicsConfiguration gc);
120 * Rectangle bounds = gc.getBounds();
121 * w.setLocation(10 + bounds.x, 10 + bounds.y);
122 * </pre>
123 *
124 * <p>
125 * Note: the location and size of top-level windows (including
126 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
127 * are under the control of the desktop's window management system.
128 * Calls to {@code setLocation}, {@code setSize}, and
129 * {@code setBounds} are requests (not directives) which are
130 * forwarded to the window management system. Every effort will be
131 * made to honor such requests. However, in some cases the window
132 * management system may ignore such requests, or modify the requested
133 * geometry in order to place and size the {@code Window} in a way
134 * that more closely matches the desktop settings.
135 * <p>
136 * Due to the asynchronous nature of native event handling, the results
137 * returned by {@code getBounds}, {@code getLocation},
138 * {@code getLocationOnScreen}, and {@code getSize} might not
139 * reflect the actual geometry of the Window on screen until the last
140 * request has been processed. During the processing of subsequent
141 * requests these values might change accordingly while the window
142 * management system fulfills the requests.
143 * <p>
144 * An application may set the size and location of an invisible
145 * {@code Window} arbitrarily, but the window management system may
146 * subsequently change its size and/or location when the
147 * {@code Window} is made visible. One or more {@code ComponentEvent}s
148 * will be generated to indicate the new geometry.
149 * <p>
150 * Windows are capable of generating the following WindowEvents:
151 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
152 *
153 * @author Sami Shaio
154 * @author Arthur van Hoff
155 * @see WindowEvent
156 * @see #addWindowListener
157 * @see java.awt.BorderLayout
158 * @since 1.0
159 */
160 public class Window extends Container implements Accessible {
161
162 /**
163 * Enumeration of available <i>window types</i>.
164 *
165 * A window type defines the generic visual appearance and behavior of a
166 * top-level window. For example, the type may affect the kind of
167 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
168 * <p>
169 * Some platforms may not fully support a certain window type. Depending on
170 * the level of support, some properties of the window type may be
171 * disobeyed.
172 *
173 * @see #getType
174 * @see #setType
175 * @since 1.7
176 */
177 public static enum Type {
178 /**
179 * Represents a <i>normal</i> window.
180 *
181 * This is the default type for objects of the {@code Window} class or
182 * its descendants. Use this type for regular top-level windows.
183 */
184 NORMAL,
185
186 /**
187 * Represents a <i>utility</i> window.
188 *
189 * A utility window is usually a small window such as a toolbar or a
190 * palette. The native system may render the window with smaller
191 * title-bar if the window is either a {@code Frame} or a {@code
192 * Dialog} object, and if it has its decorations enabled.
193 */
194 UTILITY,
195
196 /**
197 * Represents a <i>popup</i> window.
198 *
199 * A popup window is a temporary window such as a drop-down menu or a
200 * tooltip. On some platforms, windows of that type may be forcibly
201 * made undecorated even if they are instances of the {@code Frame} or
202 * {@code Dialog} class, and have decorations enabled.
203 */
204 POPUP
205 }
206
207 /**
208 * This represents the warning message that is
209 * to be displayed in a non secure window. ie :
210 * a window that has a security manager installed that denies
211 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
212 * This message can be displayed anywhere in the window.
213 *
214 * @serial
215 * @see #getWarningString
216 */
217 String warningString;
218
219 /**
220 * {@code icons} is the graphical way we can
221 * represent the frames and dialogs.
222 * {@code Window} can't display icon but it's
223 * being inherited by owned {@code Dialog}s.
224 *
225 * @serial
226 * @see #getIconImages
227 * @see #setIconImages
228 */
229 transient java.util.List<Image> icons;
230
231 /**
232 * Holds the reference to the component which last had focus in this window
233 * before it lost focus.
234 */
235 private transient Component temporaryLostComponent;
236
237 static boolean systemSyncLWRequests = false;
238 boolean syncLWRequests = false;
239 transient boolean beforeFirstShow = true;
240 private transient boolean disposing = false;
241 transient WindowDisposerRecord disposerRecord = null;
242
243 static final int OPENED = 0x01;
244
245 /**
246 * An Integer value representing the Window State.
247 *
248 * @serial
249 * @since 1.2
250 * @see #show
251 */
252 int state;
253
254 /**
255 * A boolean value representing Window always-on-top state
256 * @since 1.5
257 * @serial
258 * @see #setAlwaysOnTop
259 * @see #isAlwaysOnTop
260 */
261 private boolean alwaysOnTop;
262
263 /**
264 * Contains all the windows that have a peer object associated,
265 * i. e. between addNotify() and removeNotify() calls. The list
266 * of all Window instances can be obtained from AppContext object.
267 *
268 * @since 1.6
269 */
270 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
271
272 /**
273 * A vector containing all the windows this
274 * window currently owns.
275 * @since 1.2
276 * @see #getOwnedWindows
277 */
278 transient Vector<WeakReference<Window>> ownedWindowList =
279 new Vector<WeakReference<Window>>();
280
281 /*
282 * We insert a weak reference into the Vector of all Windows in AppContext
283 * instead of 'this' so that garbage collection can still take place
284 * correctly.
285 */
286 private transient WeakReference<Window> weakThis;
287
288 transient boolean showWithParent;
289
290 /**
291 * Contains the modal dialog that blocks this window, or null
292 * if the window is unblocked.
293 *
294 * @since 1.6
295 */
296 transient Dialog modalBlocker;
297
298 /**
299 * @serial
300 *
301 * @see java.awt.Dialog.ModalExclusionType
302 * @see #getModalExclusionType
303 * @see #setModalExclusionType
304 *
305 * @since 1.6
306 */
307 Dialog.ModalExclusionType modalExclusionType;
308
309 transient WindowListener windowListener;
310 transient WindowStateListener windowStateListener;
311 transient WindowFocusListener windowFocusListener;
312
313 transient InputContext inputContext;
314 private transient Object inputContextLock = new Object();
315
316 /**
317 * Unused. Maintained for serialization backward-compatibility.
318 *
319 * @serial
320 * @since 1.2
321 */
322 private FocusManager focusMgr;
323
324 /**
325 * Indicates whether this Window can become the focused Window.
326 *
327 * @serial
328 * @see #getFocusableWindowState
329 * @see #setFocusableWindowState
330 * @since 1.4
331 */
332 private boolean focusableWindowState = true;
333
334 /**
335 * Indicates whether this window should receive focus on
336 * subsequently being shown (with a call to {@code setVisible(true)}), or
337 * being moved to the front (with a call to {@code toFront()}).
338 *
339 * @serial
340 * @see #setAutoRequestFocus
341 * @see #isAutoRequestFocus
342 * @since 1.7
343 */
344 private volatile boolean autoRequestFocus = true;
345
346 /*
347 * Indicates that this window is being shown. This flag is set to true at
348 * the beginning of show() and to false at the end of show().
349 *
350 * @see #show()
351 * @see Dialog#shouldBlock
352 */
353 transient boolean isInShow = false;
354
355 /**
356 * The opacity level of the window
357 *
358 * @serial
359 * @see #setOpacity(float)
360 * @see #getOpacity()
361 * @since 1.7
362 */
363 private volatile float opacity = 1.0f;
364
365 /**
366 * The shape assigned to this window. This field is set to {@code null} if
367 * no shape is set (rectangular window).
368 *
369 * @serial
370 * @see #getShape()
371 * @see #setShape(Shape)
372 * @since 1.7
373 */
374 private Shape shape = null;
375
376 private static final String base = "win";
377 private static int nameCounter = 0;
378
379 /*
380 * JDK 1.1 serialVersionUID
381 */
382 private static final long serialVersionUID = 4497834738069338734L;
383
384 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
385
386 private static final boolean locationByPlatformProp;
387
388 transient boolean isTrayIconWindow = false;
389
390 /**
391 * These fields are initialized in the native peer code
392 * or via AWTAccessor's WindowAccessor.
393 */
394 private transient volatile int securityWarningWidth = 0;
395 private transient volatile int securityWarningHeight = 0;
396
397 /**
398 * These fields represent the desired location for the security
399 * warning if this window is untrusted.
400 * See com.sun.awt.SecurityWarning for more details.
401 */
402 private transient double securityWarningPointX = 2.0;
403 private transient double securityWarningPointY = 0.0;
404 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
405 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
406
407 static {
408 /* ensure that the necessary native libraries are loaded */
409 Toolkit.loadLibraries();
410 if (!GraphicsEnvironment.isHeadless()) {
411 initIDs();
412 }
413
414 String s = java.security.AccessController.doPrivileged(
415 new GetPropertyAction("java.awt.syncLWRequests"));
416 systemSyncLWRequests = (s != null && s.equals("true"));
417 s = java.security.AccessController.doPrivileged(
418 new GetPropertyAction("java.awt.Window.locationByPlatform"));
419 locationByPlatformProp = (s != null && s.equals("true"));
420 }
421
422 /**
423 * Initialize JNI field and method IDs for fields that may be
424 accessed from C.
425 */
426 private static native void initIDs();
427
428 /**
429 * Constructs a new, initially invisible window in default size with the
430 * specified {@code GraphicsConfiguration}.
431 * <p>
432 * If there is a security manager, then it is invoked to check
433 * {@code AWTPermission("showWindowWithoutWarningBanner")}
434 * to determine whether or not the window must be displayed with
435 * a warning banner.
436 *
437 * @param gc the {@code GraphicsConfiguration} of the target screen
438 * device. If {@code gc} is {@code null}, the system default
439 * {@code GraphicsConfiguration} is assumed
440 * @exception IllegalArgumentException if {@code gc}
441 * is not from a screen device
442 * @exception HeadlessException when
443 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
444 *
445 * @see java.awt.GraphicsEnvironment#isHeadless
446 */
447 Window(GraphicsConfiguration gc) {
448 init(gc);
449 }
450
451 transient Object anchor = new Object();
452 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
453 WeakReference<Window> owner;
454 final WeakReference<Window> weakThis;
455 final WeakReference<AppContext> context;
456
457 WindowDisposerRecord(AppContext context, Window victim) {
458 weakThis = victim.weakThis;
459 this.context = new WeakReference<AppContext>(context);
460 }
461
462 public void updateOwner() {
463 Window victim = weakThis.get();
464 owner = (victim == null)
465 ? null
466 : new WeakReference<Window>(victim.getOwner());
467 }
468
469 public void dispose() {
470 if (owner != null) {
471 Window parent = owner.get();
472 if (parent != null) {
473 parent.removeOwnedWindow(weakThis);
474 }
475 }
476 AppContext ac = context.get();
477 if (null != ac) {
478 Window.removeFromWindowList(ac, weakThis);
479 }
480 }
481 }
482
483 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
484 GraphicsEnvironment.checkHeadless();
485
486 if (gc == null) {
487 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
488 getDefaultScreenDevice().getDefaultConfiguration();
489 }
490 setGraphicsConfiguration(gc);
491
492 return gc;
493 }
494
495 private void init(GraphicsConfiguration gc) {
496 GraphicsEnvironment.checkHeadless();
497
498 syncLWRequests = systemSyncLWRequests;
499
500 weakThis = new WeakReference<Window>(this);
501 addToWindowList();
502
503 setWarningString();
504 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
505 this.visible = false;
506
507 gc = initGC(gc);
508
509 if (gc.getDevice().getType() !=
510 GraphicsDevice.TYPE_RASTER_SCREEN) {
511 throw new IllegalArgumentException("not a screen device");
512 }
513 setLayout(new BorderLayout());
514
515 /* offset the initial location with the original of the screen */
516 /* and any insets */
517 Rectangle screenBounds = gc.getBounds();
518 Insets screenInsets = getToolkit().getScreenInsets(gc);
519 int x = getX() + screenBounds.x + screenInsets.left;
520 int y = getY() + screenBounds.y + screenInsets.top;
521 if (x != this.x || y != this.y) {
522 setLocation(x, y);
523 /* reset after setLocation */
524 setLocationByPlatform(locationByPlatformProp);
525 }
526
527 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
528 disposerRecord = new WindowDisposerRecord(appContext, this);
529 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
530
531 SunToolkit.checkAndSetPolicy(this);
532 }
533
534 /**
535 * Constructs a new, initially invisible window in the default size.
536 * <p>
537 * If there is a security manager set, it is invoked to check
538 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
539 * If that check fails with a {@code SecurityException} then a warning
540 * banner is created.
541 *
542 * @exception HeadlessException when
543 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
544 *
545 * @see java.awt.GraphicsEnvironment#isHeadless
546 */
547 Window() throws HeadlessException {
548 GraphicsEnvironment.checkHeadless();
549 init((GraphicsConfiguration)null);
550 }
551
552 /**
553 * Constructs a new, initially invisible window with the specified
554 * {@code Frame} as its owner. The window will not be focusable
555 * unless its owner is showing on the screen.
556 * <p>
557 * If there is a security manager set, it is invoked to check
558 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
559 * If that check fails with a {@code SecurityException} then a warning
560 * banner is created.
561 *
562 * @param owner the {@code Frame} to act as owner or {@code null}
563 * if this window has no owner
564 * @exception IllegalArgumentException if the {@code owner}'s
565 * {@code GraphicsConfiguration} is not from a screen device
566 * @exception HeadlessException when
567 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
568 *
569 * @see java.awt.GraphicsEnvironment#isHeadless
570 * @see #isShowing
571 */
572 public Window(Frame owner) {
573 this(owner == null ? (GraphicsConfiguration)null :
574 owner.getGraphicsConfiguration());
575 ownedInit(owner);
576 }
577
578 /**
579 * Constructs a new, initially invisible window with the specified
580 * {@code Window} as its owner. This window will not be focusable
581 * unless its nearest owning {@code Frame} or {@code Dialog}
582 * is showing on the screen.
583 * <p>
584 * If there is a security manager set, it is invoked to check
585 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
586 * If that check fails with a {@code SecurityException} then a
587 * warning banner is created.
588 *
589 * @param owner the {@code Window} to act as owner or
590 * {@code null} if this window has no owner
591 * @exception IllegalArgumentException if the {@code owner}'s
592 * {@code GraphicsConfiguration} is not from a screen device
593 * @exception HeadlessException when
594 * {@code GraphicsEnvironment.isHeadless()} returns
595 * {@code true}
596 *
597 * @see java.awt.GraphicsEnvironment#isHeadless
598 * @see #isShowing
599 *
600 * @since 1.2
601 */
602 public Window(Window owner) {
603 this(owner == null ? (GraphicsConfiguration)null :
604 owner.getGraphicsConfiguration());
605 ownedInit(owner);
606 }
607
608 /**
609 * Constructs a new, initially invisible window with the specified owner
610 * {@code Window} and a {@code GraphicsConfiguration}
611 * of a screen device. The Window will not be focusable unless
612 * its nearest owning {@code Frame} or {@code Dialog}
613 * is showing on the screen.
614 * <p>
615 * If there is a security manager set, it is invoked to check
616 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
617 * check fails with a {@code SecurityException} then a warning banner
618 * is created.
619 *
620 * @param owner the window to act as owner or {@code null}
621 * if this window has no owner
622 * @param gc the {@code GraphicsConfiguration} of the target
623 * screen device; if {@code gc} is {@code null},
624 * the system default {@code GraphicsConfiguration} is assumed
625 * @exception IllegalArgumentException if {@code gc}
626 * is not from a screen device
627 * @exception HeadlessException when
628 * {@code GraphicsEnvironment.isHeadless()} returns
629 * {@code true}
630 *
631 * @see java.awt.GraphicsEnvironment#isHeadless
632 * @see GraphicsConfiguration#getBounds
633 * @see #isShowing
634 * @since 1.3
635 */
636 public Window(Window owner, GraphicsConfiguration gc) {
637 this(gc);
638 ownedInit(owner);
639 }
640
641 private void ownedInit(Window owner) {
642 this.parent = owner;
643 if (owner != null) {
644 owner.addOwnedWindow(weakThis);
645 if (owner.isAlwaysOnTop()) {
646 try {
647 setAlwaysOnTop(true);
648 } catch (SecurityException ignore) {
649 }
650 }
651 }
652
653 // WindowDisposerRecord requires a proper value of parent field.
654 disposerRecord.updateOwner();
655 }
656
657 /**
658 * Construct a name for this component. Called by getName() when the
659 * name is null.
660 */
661 String constructComponentName() {
662 synchronized (Window.class) {
663 return base + nameCounter++;
664 }
665 }
666
667 /**
668 * Returns the sequence of images to be displayed as the icon for this window.
669 * <p>
670 * This method returns a copy of the internally stored list, so all operations
671 * on the returned object will not affect the window's behavior.
672 *
673 * @return the copy of icon images' list for this window, or
674 * empty list if this window doesn't have icon images.
675 * @see #setIconImages
676 * @see #setIconImage(Image)
677 * @since 1.6
678 */
679 public java.util.List<Image> getIconImages() {
680 java.util.List<Image> icons = this.icons;
681 if (icons == null || icons.size() == 0) {
682 return new ArrayList<Image>();
683 }
684 return new ArrayList<Image>(icons);
685 }
686
687 /**
688 * Sets the sequence of images to be displayed as the icon
689 * for this window. Subsequent calls to {@code getIconImages} will
690 * always return a copy of the {@code icons} list.
691 * <p>
692 * Depending on the platform capabilities one or several images
693 * of different dimensions will be used as the window's icon.
694 * <p>
695 * The {@code icons} list can contain {@code MultiResolutionImage} images also.
696 * Suitable image depending on screen resolution is extracted from
697 * base {@code MultiResolutionImage} image and added to the icons list
698 * while base resolution image is removed from list.
699 * The {@code icons} list is scanned for the images of most
700 * appropriate dimensions from the beginning. If the list contains
701 * several images of the same size, the first will be used.
702 * <p>
703 * Ownerless windows with no icon specified use platform-default icon.
704 * The icon of an owned window may be inherited from the owner
705 * unless explicitly overridden.
706 * Setting the icon to {@code null} or empty list restores
707 * the default behavior.
708 * <p>
709 * Note : Native windowing systems may use different images of differing
710 * dimensions to represent a window, depending on the context (e.g.
711 * window decoration, window list, taskbar, etc.). They could also use
712 * just a single image for all contexts or no image at all.
713 *
714 * @param icons the list of icon images to be displayed.
715 * @see #getIconImages()
716 * @see #setIconImage(Image)
717 * @since 1.6
718 */
719 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
720 this.icons = (icons == null) ? new ArrayList<Image>() :
721 new ArrayList<Image>(icons);
722 WindowPeer peer = (WindowPeer)this.peer;
723 if (peer != null) {
724 peer.updateIconImages();
725 }
726 // Always send a property change event
727 firePropertyChange("iconImage", null, null);
728 }
729
730 /**
731 * Sets the image to be displayed as the icon for this window.
732 * <p>
733 * This method can be used instead of {@link #setIconImages setIconImages()}
734 * to specify a single image as a window's icon.
735 * <p>
736 * The following statement:
737 * <pre>
738 * setIconImage(image);
739 * </pre>
740 * is equivalent to:
741 * <pre>
742 * ArrayList<Image> imageList = new ArrayList<Image>();
743 * imageList.add(image);
744 * setIconImages(imageList);
745 * </pre>
746 * <p>
747 * Note : Native windowing systems may use different images of differing
748 * dimensions to represent a window, depending on the context (e.g.
749 * window decoration, window list, taskbar, etc.). They could also use
750 * just a single image for all contexts or no image at all.
751 *
752 * @param image the icon image to be displayed.
753 * @see #setIconImages
754 * @see #getIconImages()
755 * @since 1.6
756 */
757 public void setIconImage(Image image) {
758 ArrayList<Image> imageList = new ArrayList<Image>();
759 if (image != null) {
760 imageList.add(image);
761 }
762 setIconImages(imageList);
763 }
764
765 /**
766 * Makes this Window displayable by creating the connection to its
767 * native screen resource.
768 * This method is called internally by the toolkit and should
769 * not be called directly by programs.
770 * @see Component#isDisplayable
771 * @see Container#removeNotify
772 * @since 1.0
773 */
774 public void addNotify() {
775 synchronized (getTreeLock()) {
776 Container parent = this.parent;
777 if (parent != null && parent.peer == null) {
778 parent.addNotify();
779 }
780 if (peer == null) {
781 peer = getComponentFactory().createWindow(this);
782 }
783 synchronized (allWindows) {
784 allWindows.add(this);
785 }
786 super.addNotify();
787 }
788 }
789
790 /**
791 * {@inheritDoc}
792 */
793 public void removeNotify() {
794 synchronized (getTreeLock()) {
795 synchronized (allWindows) {
796 allWindows.remove(this);
797 }
798 super.removeNotify();
799 }
800 }
801
802 /**
803 * Causes this Window to be sized to fit the preferred size
804 * and layouts of its subcomponents. The resulting width and
805 * height of the window are automatically enlarged if either
806 * of dimensions is less than the minimum size as specified
807 * by the previous call to the {@code setMinimumSize} method.
808 * <p>
809 * If the window and/or its owner are not displayable yet,
810 * both of them are made displayable before calculating
811 * the preferred size. The Window is validated after its
812 * size is being calculated.
813 *
814 * @see Component#isDisplayable
815 * @see #setMinimumSize
816 */
817 @SuppressWarnings("deprecation")
818 public void pack() {
819 Container parent = this.parent;
820 if (parent != null && parent.peer == null) {
821 parent.addNotify();
822 }
823 if (peer == null) {
824 addNotify();
825 }
826 Dimension newSize = getPreferredSize();
827 if (peer != null) {
828 setClientSize(newSize.width, newSize.height);
829 }
830
831 if(beforeFirstShow) {
832 isPacked = true;
833 }
834
835 validateUnconditionally();
836 }
837
838 /**
839 * Sets the minimum size of this window to a constant
840 * value. Subsequent calls to {@code getMinimumSize}
841 * will always return this value. If current window's
842 * size is less than {@code minimumSize} the size of the
843 * window is automatically enlarged to honor the minimum size.
844 * <p>
845 * If the {@code setSize} or {@code setBounds} methods
846 * are called afterwards with a width or height less than
847 * that was specified by the {@code setMinimumSize} method
848 * the window is automatically enlarged to meet
849 * the {@code minimumSize} value. The {@code minimumSize}
850 * value also affects the behaviour of the {@code pack} method.
851 * <p>
852 * The default behavior is restored by setting the minimum size
853 * parameter to the {@code null} value.
854 * <p>
855 * Resizing operation may be restricted if the user tries
856 * to resize window below the {@code minimumSize} value.
857 * This behaviour is platform-dependent.
858 *
859 * @param minimumSize the new minimum size of this window
860 * @see Component#setMinimumSize
861 * @see #getMinimumSize
862 * @see #isMinimumSizeSet
863 * @see #setSize(Dimension)
864 * @see #pack
865 * @since 1.6
866 */
867 public void setMinimumSize(Dimension minimumSize) {
868 synchronized (getTreeLock()) {
869 super.setMinimumSize(minimumSize);
870 Dimension size = getSize();
871 if (isMinimumSizeSet()) {
872 if (size.width < minimumSize.width || size.height < minimumSize.height) {
873 int nw = Math.max(width, minimumSize.width);
874 int nh = Math.max(height, minimumSize.height);
875 setSize(nw, nh);
876 }
877 }
878 if (peer != null) {
879 ((WindowPeer)peer).updateMinimumSize();
880 }
881 }
882 }
883
884 /**
885 * {@inheritDoc}
886 * <p>
887 * The {@code d.width} and {@code d.height} values
888 * are automatically enlarged if either is less than
889 * the minimum size as specified by previous call to
890 * {@code setMinimumSize}.
891 * <p>
892 * The method changes the geometry-related data. Therefore,
893 * the native windowing system may ignore such requests, or it may modify
894 * the requested data, so that the {@code Window} object is placed and sized
895 * in a way that corresponds closely to the desktop settings.
896 *
897 * @see #getSize
898 * @see #setBounds
899 * @see #setMinimumSize
900 * @since 1.6
901 */
902 public void setSize(Dimension d) {
903 super.setSize(d);
904 }
905
906 /**
907 * {@inheritDoc}
908 * <p>
909 * The {@code width} and {@code height} values
910 * are automatically enlarged if either is less than
911 * the minimum size as specified by previous call to
912 * {@code setMinimumSize}.
913 * <p>
914 * The method changes the geometry-related data. Therefore,
915 * the native windowing system may ignore such requests, or it may modify
916 * the requested data, so that the {@code Window} object is placed and sized
917 * in a way that corresponds closely to the desktop settings.
918 *
919 * @see #getSize
920 * @see #setBounds
921 * @see #setMinimumSize
922 * @since 1.6
923 */
924 public void setSize(int width, int height) {
925 super.setSize(width, height);
926 }
927
928 /**
929 * {@inheritDoc}
930 * <p>
931 * The method changes the geometry-related data. Therefore,
932 * the native windowing system may ignore such requests, or it may modify
933 * the requested data, so that the {@code Window} object is placed and sized
934 * in a way that corresponds closely to the desktop settings.
935 */
936 @Override
937 public void setLocation(int x, int y) {
938 super.setLocation(x, y);
939 }
940
941 /**
942 * {@inheritDoc}
943 * <p>
944 * The method changes the geometry-related data. Therefore,
945 * the native windowing system may ignore such requests, or it may modify
946 * the requested data, so that the {@code Window} object is placed and sized
947 * in a way that corresponds closely to the desktop settings.
948 */
949 @Override
950 public void setLocation(Point p) {
951 super.setLocation(p);
952 }
953
954 /**
955 * @deprecated As of JDK version 1.1,
956 * replaced by {@code setBounds(int, int, int, int)}.
957 */
958 @Deprecated
959 public void reshape(int x, int y, int width, int height) {
960 if (isMinimumSizeSet()) {
961 Dimension minSize = getMinimumSize();
962 if (width < minSize.width) {
963 width = minSize.width;
964 }
965 if (height < minSize.height) {
966 height = minSize.height;
967 }
968 }
969 super.reshape(x, y, width, height);
970 }
971
972 void setClientSize(int w, int h) {
973 synchronized (getTreeLock()) {
974 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
975 setBounds(x, y, w, h);
976 }
977 }
978
979 private static final AtomicBoolean
980 beforeFirstWindowShown = new AtomicBoolean(true);
981
982 final void closeSplashScreen() {
983 if (isTrayIconWindow) {
984 return;
985 }
986 if (beforeFirstWindowShown.getAndSet(false)) {
987 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
988 // the object if it hasn't been requested by user code explicitly
989 SunToolkit.closeSplashScreen();
990 SplashScreen.markClosed();
991 }
992 }
993
994 /**
995 * Shows or hides this {@code Window} depending on the value of parameter
996 * {@code b}.
997 * <p>
998 * If the method shows the window then the window is also made
999 * focused under the following conditions:
1000 * <ul>
1001 * <li> The {@code Window} meets the requirements outlined in the
1002 * {@link #isFocusableWindow} method.
1003 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
1004 * <li> Native windowing system allows the {@code Window} to get focused.
1005 * </ul>
1006 * There is an exception for the second condition (the value of the
1007 * {@code autoRequestFocus} property). The property is not taken into account if the
1008 * window is a modal dialog, which blocks the currently focused window.
1009 * <p>
1010 * Developers must never assume that the window is the focused or active window
1011 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
1012 * @param b if {@code true}, makes the {@code Window} visible,
1013 * otherwise hides the {@code Window}.
1014 * If the {@code Window} and/or its owner
1015 * are not yet displayable, both are made displayable. The
1016 * {@code Window} will be validated prior to being made visible.
1017 * If the {@code Window} is already visible, this will bring the
1018 * {@code Window} to the front.<p>
1019 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1020 * of its owned children.
1021 * The {@code Window} and its subcomponents can be made visible again
1022 * with a call to {@code #setVisible(true)}.
1023 * @see java.awt.Component#isDisplayable
1024 * @see java.awt.Component#setVisible
1025 * @see java.awt.Window#toFront
1026 * @see java.awt.Window#dispose
1027 * @see java.awt.Window#setAutoRequestFocus
1028 * @see java.awt.Window#isFocusableWindow
1029 */
1030 public void setVisible(boolean b) {
1031 super.setVisible(b);
1032 }
1033
1034 /**
1035 * Makes the Window visible. If the Window and/or its owner
1036 * are not yet displayable, both are made displayable. The
1037 * Window will be validated prior to being made visible.
1038 * If the Window is already visible, this will bring the Window
1039 * to the front.
1040 * @see Component#isDisplayable
1041 * @see #toFront
1042 * @deprecated As of JDK version 1.5, replaced by
1043 * {@link #setVisible(boolean)}.
1044 */
1045 @Deprecated
1046 public void show() {
1047 if (peer == null) {
1048 addNotify();
1049 }
1050 validateUnconditionally();
1051
1052 isInShow = true;
1053 if (visible) {
1054 toFront();
1055 } else {
1056 beforeFirstShow = false;
1057 closeSplashScreen();
1058 Dialog.checkShouldBeBlocked(this);
1059 super.show();
1060 locationByPlatform = false;
1061 for (int i = 0; i < ownedWindowList.size(); i++) {
1062 Window child = ownedWindowList.elementAt(i).get();
1063 if ((child != null) && child.showWithParent) {
1064 child.show();
1065 child.showWithParent = false;
1066 } // endif
1067 } // endfor
1068 if (!isModalBlocked()) {
1069 updateChildrenBlocking();
1070 } else {
1071 // fix for 6532736: after this window is shown, its blocker
1072 // should be raised to front
1073 modalBlocker.toFront_NoClientCode();
1074 }
1075 if (this instanceof Frame || this instanceof Dialog) {
1076 updateChildFocusableWindowState(this);
1077 }
1078 }
1079 isInShow = false;
1080
1081 // If first time shown, generate WindowOpened event
1082 if ((state & OPENED) == 0) {
1083 postWindowEvent(WindowEvent.WINDOW_OPENED);
1084 state |= OPENED;
1085 }
1086 }
1087
1088 static void updateChildFocusableWindowState(Window w) {
1089 if (w.peer != null && w.isShowing()) {
1090 ((WindowPeer)w.peer).updateFocusableWindowState();
1091 }
1092 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1093 Window child = w.ownedWindowList.elementAt(i).get();
1094 if (child != null) {
1095 updateChildFocusableWindowState(child);
1096 }
1097 }
1098 }
1099
1100 synchronized void postWindowEvent(int id) {
1101 if (windowListener != null
1102 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1103 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1104 WindowEvent e = new WindowEvent(this, id);
1105 Toolkit.getEventQueue().postEvent(e);
1106 }
1107 }
1108
1109 /**
1110 * Hide this Window, its subcomponents, and all of its owned children.
1111 * The Window and its subcomponents can be made visible again
1112 * with a call to {@code show}.
1113 * @see #show
1114 * @see #dispose
1115 * @deprecated As of JDK version 1.5, replaced by
1116 * {@link #setVisible(boolean)}.
1117 */
1118 @Deprecated
1119 public void hide() {
1120 synchronized(ownedWindowList) {
1121 for (int i = 0; i < ownedWindowList.size(); i++) {
1122 Window child = ownedWindowList.elementAt(i).get();
1123 if ((child != null) && child.visible) {
1124 child.hide();
1125 child.showWithParent = true;
1126 }
1127 }
1128 }
1129 if (isModalBlocked()) {
1130 modalBlocker.unblockWindow(this);
1131 }
1132 super.hide();
1133 locationByPlatform = false;
1134 }
1135
1136 final void clearMostRecentFocusOwnerOnHide() {
1137 /* do nothing */
1138 }
1139
1140 /**
1141 * Releases all of the native screen resources used by this
1142 * {@code Window}, its subcomponents, and all of its owned
1143 * children. That is, the resources for these {@code Component}s
1144 * will be destroyed, any memory they consume will be returned to the
1145 * OS, and they will be marked as undisplayable.
1146 * <p>
1147 * The {@code Window} and its subcomponents can be made displayable
1148 * again by rebuilding the native resources with a subsequent call to
1149 * {@code pack} or {@code show}. The states of the recreated
1150 * {@code Window} and its subcomponents will be identical to the
1151 * states of these objects at the point where the {@code Window}
1152 * was disposed (not accounting for additional modifications between
1153 * those actions).
1154 * <p>
1155 * <b>Note</b>: When the last displayable window
1156 * within the Java virtual machine (VM) is disposed of, the VM may
1157 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1158 * AWT Threading Issues</a> for more information.
1159 * @see Component#isDisplayable
1160 * @see #pack
1161 * @see #show
1162 */
1163 public void dispose() {
1164 doDispose();
1165 }
1166
1167 /*
1168 * Fix for 4872170.
1169 * If dispose() is called on parent then its children have to be disposed as well
1170 * as reported in javadoc. So we need to implement this functionality even if a
1171 * child overrides dispose() in a wrong way without calling super.dispose().
1172 */
1173 void disposeImpl() {
1174 dispose();
1175 if (peer != null) {
1176 doDispose();
1177 }
1178 }
1179
1180 void doDispose() {
1181 class DisposeAction implements Runnable {
1182 public void run() {
1183 disposing = true;
1184 try {
1185 // Check if this window is the fullscreen window for the
1186 // device. Exit the fullscreen mode prior to disposing
1187 // of the window if that's the case.
1188 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1189 if (gd.getFullScreenWindow() == Window.this) {
1190 gd.setFullScreenWindow(null);
1191 }
1192
1193 Object[] ownedWindowArray;
1194 synchronized(ownedWindowList) {
1195 ownedWindowArray = new Object[ownedWindowList.size()];
1196 ownedWindowList.copyInto(ownedWindowArray);
1197 }
1198 for (int i = 0; i < ownedWindowArray.length; i++) {
1199 Window child = (Window) (((WeakReference)
1200 (ownedWindowArray[i])).get());
1201 if (child != null) {
1202 child.disposeImpl();
1203 }
1204 }
1205 hide();
1206 beforeFirstShow = true;
1207 removeNotify();
1208 synchronized (inputContextLock) {
1209 if (inputContext != null) {
1210 inputContext.dispose();
1211 inputContext = null;
1212 }
1213 }
1214 clearCurrentFocusCycleRootOnHide();
1215 } finally {
1216 disposing = false;
1217 }
1218 }
1219 }
1220 boolean fireWindowClosedEvent = isDisplayable();
1221 DisposeAction action = new DisposeAction();
1222 if (EventQueue.isDispatchThread()) {
1223 action.run();
1224 }
1225 else {
1226 try {
1227 EventQueue.invokeAndWait(this, action);
1228 }
1229 catch (InterruptedException e) {
1230 System.err.println("Disposal was interrupted:");
1231 e.printStackTrace();
1232 }
1233 catch (InvocationTargetException e) {
1234 System.err.println("Exception during disposal:");
1235 e.printStackTrace();
1236 }
1237 }
1238 // Execute outside the Runnable because postWindowEvent is
1239 // synchronized on (this). We don't need to synchronize the call
1240 // on the EventQueue anyways.
1241 if (fireWindowClosedEvent) {
1242 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1243 }
1244 }
1245
1246 /*
1247 * Should only be called while holding the tree lock.
1248 * It's overridden here because parent == owner in Window,
1249 * and we shouldn't adjust counter on owner
1250 */
1251 void adjustListeningChildrenOnParent(long mask, int num) {
1252 }
1253
1254 // Should only be called while holding tree lock
1255 void adjustDescendantsOnParent(int num) {
1256 // do nothing since parent == owner and we shouldn't
1257 // adjust counter on owner
1258 }
1259
1260 /**
1261 * If this Window is visible, brings this Window to the front and may make
1262 * it the focused Window.
1263 * <p>
1264 * Places this Window at the top of the stacking order and shows it in
1265 * front of any other Windows in this VM. No action will take place if this
1266 * Window is not visible. Some platforms do not allow Windows which own
1267 * other Windows to appear on top of those owned Windows. Some platforms
1268 * may not permit this VM to place its Windows above windows of native
1269 * applications, or Windows of other VMs. This permission may depend on
1270 * whether a Window in this VM is already focused. Every attempt will be
1271 * made to move this Window as high as possible in the stacking order;
1272 * however, developers should not assume that this method will move this
1273 * Window above all other windows in every situation.
1274 * <p>
1275 * Developers must never assume that this Window is the focused or active
1276 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1277 * event. On platforms where the top-most window is the focused window, this
1278 * method will <b>probably</b> focus this Window (if it is not already focused)
1279 * under the following conditions:
1280 * <ul>
1281 * <li> The window meets the requirements outlined in the
1282 * {@link #isFocusableWindow} method.
1283 * <li> The window's property {@code autoRequestFocus} is of the
1284 * {@code true} value.
1285 * <li> Native windowing system allows the window to get focused.
1286 * </ul>
1287 * On platforms where the stacking order does not typically affect the focused
1288 * window, this method will <b>probably</b> leave the focused and active
1289 * Windows unchanged.
1290 * <p>
1291 * If this method causes this Window to be focused, and this Window is a
1292 * Frame or a Dialog, it will also become activated. If this Window is
1293 * focused, but it is not a Frame or a Dialog, then the first Frame or
1294 * Dialog that is an owner of this Window will be activated.
1295 * <p>
1296 * If this window is blocked by modal dialog, then the blocking dialog
1297 * is brought to the front and remains above the blocked window.
1298 *
1299 * @see #toBack
1300 * @see #setAutoRequestFocus
1301 * @see #isFocusableWindow
1302 */
1303 public void toFront() {
1304 toFront_NoClientCode();
1305 }
1306
1307 // This functionality is implemented in a final package-private method
1308 // to insure that it cannot be overridden by client subclasses.
1309 final void toFront_NoClientCode() {
1310 if (visible) {
1311 WindowPeer peer = (WindowPeer)this.peer;
1312 if (peer != null) {
1313 peer.toFront();
1314 }
1315 if (isModalBlocked()) {
1316 modalBlocker.toFront_NoClientCode();
1317 }
1318 }
1319 }
1320
1321 /**
1322 * If this Window is visible, sends this Window to the back and may cause
1323 * it to lose focus or activation if it is the focused or active Window.
1324 * <p>
1325 * Places this Window at the bottom of the stacking order and shows it
1326 * behind any other Windows in this VM. No action will take place is this
1327 * Window is not visible. Some platforms do not allow Windows which are
1328 * owned by other Windows to appear below their owners. Every attempt will
1329 * be made to move this Window as low as possible in the stacking order;
1330 * however, developers should not assume that this method will move this
1331 * Window below all other windows in every situation.
1332 * <p>
1333 * Because of variations in native windowing systems, no guarantees about
1334 * changes to the focused and active Windows can be made. Developers must
1335 * never assume that this Window is no longer the focused or active Window
1336 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1337 * event. On platforms where the top-most window is the focused window,
1338 * this method will <b>probably</b> cause this Window to lose focus. In
1339 * that case, the next highest, focusable Window in this VM will receive
1340 * focus. On platforms where the stacking order does not typically affect
1341 * the focused window, this method will <b>probably</b> leave the focused
1342 * and active Windows unchanged.
1343 *
1344 * @see #toFront
1345 */
1346 public void toBack() {
1347 toBack_NoClientCode();
1348 }
1349
1350 // This functionality is implemented in a final package-private method
1351 // to insure that it cannot be overridden by client subclasses.
1352 final void toBack_NoClientCode() {
1353 if(isAlwaysOnTop()) {
1354 try {
1355 setAlwaysOnTop(false);
1356 }catch(SecurityException e) {
1357 }
1358 }
1359 if (visible) {
1360 WindowPeer peer = (WindowPeer)this.peer;
1361 if (peer != null) {
1362 peer.toBack();
1363 }
1364 }
1365 }
1366
1367 /**
1368 * Returns the toolkit of this frame.
1369 * @return the toolkit of this window.
1370 * @see Toolkit
1371 * @see Toolkit#getDefaultToolkit
1372 * @see Component#getToolkit
1373 */
1374 public Toolkit getToolkit() {
1375 return Toolkit.getDefaultToolkit();
1376 }
1377
1378 /**
1379 * Gets the warning string that is displayed with this window.
1380 * If this window is insecure, the warning string is displayed
1381 * somewhere in the visible area of the window. A window is
1382 * insecure if there is a security manager and the security
1383 * manager denies
1384 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1385 * <p>
1386 * If the window is secure, then {@code getWarningString}
1387 * returns {@code null}. If the window is insecure, this
1388 * method checks for the system property
1389 * {@code awt.appletWarning}
1390 * and returns the string value of that property.
1391 * @return the warning string for this window.
1392 */
1393 public final String getWarningString() {
1394 return warningString;
1395 }
1396
1397 private void setWarningString() {
1398 warningString = null;
1399 SecurityManager sm = System.getSecurityManager();
1400 if (sm != null) {
1401 try {
1402 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1403 } catch (SecurityException se) {
1404 // make sure the privileged action is only
1405 // for getting the property! We don't want the
1406 // above checkPermission call to always succeed!
1407 warningString = AccessController.doPrivileged(
1408 new GetPropertyAction("awt.appletWarning",
1409 "Java Applet Window"));
1410 }
1411 }
1412 }
1413
1414 /**
1415 * Gets the {@code Locale} object that is associated
1416 * with this window, if the locale has been set.
1417 * If no locale has been set, then the default locale
1418 * is returned.
1419 * @return the locale that is set for this window.
1420 * @see java.util.Locale
1421 * @since 1.1
1422 */
1423 public Locale getLocale() {
1424 if (this.locale == null) {
1425 return Locale.getDefault();
1426 }
1427 return this.locale;
1428 }
1429
1430 /**
1431 * Gets the input context for this window. A window always has an input context,
1432 * which is shared by subcomponents unless they create and set their own.
1433 * @see Component#getInputContext
1434 * @since 1.2
1435 */
1436 public InputContext getInputContext() {
1437 synchronized (inputContextLock) {
1438 if (inputContext == null) {
1439 inputContext = InputContext.getInstance();
1440 }
1441 }
1442 return inputContext;
1443 }
1444
1445 /**
1446 * Set the cursor image to a specified cursor.
1447 * <p>
1448 * The method may have no visual effect if the Java platform
1449 * implementation and/or the native system do not support
1450 * changing the mouse cursor shape.
1451 * @param cursor One of the constants defined
1452 * by the {@code Cursor} class. If this parameter is null
1453 * then the cursor for this window will be set to the type
1454 * Cursor.DEFAULT_CURSOR.
1455 * @see Component#getCursor
1456 * @see Cursor
1457 * @since 1.1
1458 */
1459 public void setCursor(Cursor cursor) {
1460 if (cursor == null) {
1461 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1462 }
1463 super.setCursor(cursor);
1464 }
1465
1466 /**
1467 * Returns the owner of this window.
1468 *
1469 * @return the owner of this window
1470 * @since 1.2
1471 */
1472 public Window getOwner() {
1473 return getOwner_NoClientCode();
1474 }
1475 final Window getOwner_NoClientCode() {
1476 return (Window)parent;
1477 }
1478
1479 /**
1480 * Return an array containing all the windows this
1481 * window currently owns.
1482 *
1483 * @return the array of all the owned windows
1484 * @since 1.2
1485 */
1486 public Window[] getOwnedWindows() {
1487 return getOwnedWindows_NoClientCode();
1488 }
1489 final Window[] getOwnedWindows_NoClientCode() {
1490 Window realCopy[];
1491
1492 synchronized(ownedWindowList) {
1493 // Recall that ownedWindowList is actually a Vector of
1494 // WeakReferences and calling get() on one of these references
1495 // may return null. Make two arrays-- one the size of the
1496 // Vector (fullCopy with size fullSize), and one the size of
1497 // all non-null get()s (realCopy with size realSize).
1498 int fullSize = ownedWindowList.size();
1499 int realSize = 0;
1500 Window fullCopy[] = new Window[fullSize];
1501
1502 for (int i = 0; i < fullSize; i++) {
1503 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1504
1505 if (fullCopy[realSize] != null) {
1506 realSize++;
1507 }
1508 }
1509
1510 if (fullSize != realSize) {
1511 realCopy = Arrays.copyOf(fullCopy, realSize);
1512 } else {
1513 realCopy = fullCopy;
1514 }
1515 }
1516
1517 return realCopy;
1518 }
1519
1520 boolean isModalBlocked() {
1521 return modalBlocker != null;
1522 }
1523
1524 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1525 this.modalBlocker = blocked ? blocker : null;
1526 if (peerCall) {
1527 WindowPeer peer = (WindowPeer)this.peer;
1528 if (peer != null) {
1529 peer.setModalBlocked(blocker, blocked);
1530 }
1531 }
1532 }
1533
1534 Dialog getModalBlocker() {
1535 return modalBlocker;
1536 }
1537
1538 /*
1539 * Returns a list of all displayable Windows, i. e. all the
1540 * Windows which peer is not null.
1541 *
1542 * @see #addNotify
1543 * @see #removeNotify
1544 */
1545 static IdentityArrayList<Window> getAllWindows() {
1546 synchronized (allWindows) {
1547 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1548 v.addAll(allWindows);
1549 return v;
1550 }
1551 }
1552
1553 static IdentityArrayList<Window> getAllUnblockedWindows() {
1554 synchronized (allWindows) {
1555 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1556 for (int i = 0; i < allWindows.size(); i++) {
1557 Window w = allWindows.get(i);
1558 if (!w.isModalBlocked()) {
1559 unblocked.add(w);
1560 }
1561 }
1562 return unblocked;
1563 }
1564 }
1565
1566 private static Window[] getWindows(AppContext appContext) {
1567 synchronized (Window.class) {
1568 Window realCopy[];
1569 @SuppressWarnings("unchecked")
1570 Vector<WeakReference<Window>> windowList =
1571 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1572 if (windowList != null) {
1573 int fullSize = windowList.size();
1574 int realSize = 0;
1575 Window fullCopy[] = new Window[fullSize];
1576 for (int i = 0; i < fullSize; i++) {
1577 Window w = windowList.get(i).get();
1578 if (w != null) {
1579 fullCopy[realSize++] = w;
1580 }
1581 }
1582 if (fullSize != realSize) {
1583 realCopy = Arrays.copyOf(fullCopy, realSize);
1584 } else {
1585 realCopy = fullCopy;
1586 }
1587 } else {
1588 realCopy = new Window[0];
1589 }
1590 return realCopy;
1591 }
1592 }
1593
1594 /**
1595 * Returns an array of all {@code Window}s, both owned and ownerless,
1596 * created by this application.
1597 * If called from an applet, the array includes only the {@code Window}s
1598 * accessible by that applet.
1599 * <p>
1600 * <b>Warning:</b> this method may return system created windows, such
1601 * as a print dialog. Applications should not assume the existence of
1602 * these dialogs, nor should an application assume anything about these
1603 * dialogs such as component positions, {@code LayoutManager}s
1604 * or serialization.
1605 *
1606 * @return the array of all the {@code Window}s created by the application
1607 * @see Frame#getFrames
1608 * @see Window#getOwnerlessWindows
1609 *
1610 * @since 1.6
1611 */
1612 public static Window[] getWindows() {
1613 return getWindows(AppContext.getAppContext());
1614 }
1615
1616 /**
1617 * Returns an array of all {@code Window}s created by this application
1618 * that have no owner. They include {@code Frame}s and ownerless
1619 * {@code Dialog}s and {@code Window}s.
1620 * If called from an applet, the array includes only the {@code Window}s
1621 * accessible by that applet.
1622 * <p>
1623 * <b>Warning:</b> this method may return system created windows, such
1624 * as a print dialog. Applications should not assume the existence of
1625 * these dialogs, nor should an application assume anything about these
1626 * dialogs such as component positions, {@code LayoutManager}s
1627 * or serialization.
1628 *
1629 * @return the array of all the ownerless {@code Window}s
1630 * created by this application
1631 * @see Frame#getFrames
1632 * @see Window#getWindows()
1633 *
1634 * @since 1.6
1635 */
1636 public static Window[] getOwnerlessWindows() {
1637 Window[] allWindows = Window.getWindows();
1638
1639 int ownerlessCount = 0;
1640 for (Window w : allWindows) {
1641 if (w.getOwner() == null) {
1642 ownerlessCount++;
1643 }
1644 }
1645
1646 Window[] ownerless = new Window[ownerlessCount];
1647 int c = 0;
1648 for (Window w : allWindows) {
1649 if (w.getOwner() == null) {
1650 ownerless[c++] = w;
1651 }
1652 }
1653
1654 return ownerless;
1655 }
1656
1657 Window getDocumentRoot() {
1658 synchronized (getTreeLock()) {
1659 Window w = this;
1660 while (w.getOwner() != null) {
1661 w = w.getOwner();
1662 }
1663 return w;
1664 }
1665 }
1666
1667 /**
1668 * Specifies the modal exclusion type for this window. If a window is modal
1669 * excluded, it is not blocked by some modal dialogs. See {@link
1670 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1671 * possible modal exclusion types.
1672 * <p>
1673 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1674 * <p>
1675 * Note: changing the modal exclusion type for a visible window may have no
1676 * effect until it is hidden and then shown again.
1677 *
1678 * @param exclusionType the modal exclusion type for this window; a {@code null}
1679 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1680 * NO_EXCLUDE}
1681 * @throws SecurityException if the calling thread does not have permission
1682 * to set the modal exclusion property to the window with the given
1683 * {@code exclusionType}
1684 * @see java.awt.Dialog.ModalExclusionType
1685 * @see java.awt.Window#getModalExclusionType
1686 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1687 *
1688 * @since 1.6
1689 */
1690 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1691 if (exclusionType == null) {
1692 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1693 }
1694 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1695 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1696 }
1697 if (modalExclusionType == exclusionType) {
1698 return;
1699 }
1700 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1701 SecurityManager sm = System.getSecurityManager();
1702 if (sm != null) {
1703 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1704 }
1705 }
1706 modalExclusionType = exclusionType;
1707
1708 // if we want on-fly changes, we need to uncomment the lines below
1709 // and override the method in Dialog to use modalShow() instead
1710 // of updateChildrenBlocking()
1711 /*
1712 if (isModalBlocked()) {
1713 modalBlocker.unblockWindow(this);
1714 }
1715 Dialog.checkShouldBeBlocked(this);
1716 updateChildrenBlocking();
1717 */
1718 }
1719
1720 /**
1721 * Returns the modal exclusion type of this window.
1722 *
1723 * @return the modal exclusion type of this window
1724 *
1725 * @see java.awt.Dialog.ModalExclusionType
1726 * @see java.awt.Window#setModalExclusionType
1727 *
1728 * @since 1.6
1729 */
1730 public Dialog.ModalExclusionType getModalExclusionType() {
1731 return modalExclusionType;
1732 }
1733
1734 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1735 if ((modalExclusionType != null) &&
1736 modalExclusionType.compareTo(exclusionType) >= 0)
1737 {
1738 return true;
1739 }
1740 Window owner = getOwner_NoClientCode();
1741 return (owner != null) && owner.isModalExcluded(exclusionType);
1742 }
1743
1744 void updateChildrenBlocking() {
1745 Vector<Window> childHierarchy = new Vector<Window>();
1746 Window[] ownedWindows = getOwnedWindows();
1747 for (int i = 0; i < ownedWindows.length; i++) {
1748 childHierarchy.add(ownedWindows[i]);
1749 }
1750 int k = 0;
1751 while (k < childHierarchy.size()) {
1752 Window w = childHierarchy.get(k);
1753 if (w.isVisible()) {
1754 if (w.isModalBlocked()) {
1755 Dialog blocker = w.getModalBlocker();
1756 blocker.unblockWindow(w);
1757 }
1758 Dialog.checkShouldBeBlocked(w);
1759 Window[] wOwned = w.getOwnedWindows();
1760 for (int j = 0; j < wOwned.length; j++) {
1761 childHierarchy.add(wOwned[j]);
1762 }
1763 }
1764 k++;
1765 }
1766 }
1767
1768 /**
1769 * Adds the specified window listener to receive window events from
1770 * this window.
1771 * If l is null, no exception is thrown and no action is performed.
1772 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1773 * >AWT Threading Issues</a> for details on AWT's threading model.
1774 *
1775 * @param l the window listener
1776 * @see #removeWindowListener
1777 * @see #getWindowListeners
1778 */
1779 public synchronized void addWindowListener(WindowListener l) {
1780 if (l == null) {
1781 return;
1782 }
1783 newEventsOnly = true;
1784 windowListener = AWTEventMulticaster.add(windowListener, l);
1785 }
1786
1787 /**
1788 * Adds the specified window state listener to receive window
1789 * events from this window. If {@code l} is {@code null},
1790 * no exception is thrown and no action is performed.
1791 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1792 * >AWT Threading Issues</a> for details on AWT's threading model.
1793 *
1794 * @param l the window state listener
1795 * @see #removeWindowStateListener
1796 * @see #getWindowStateListeners
1797 * @since 1.4
1798 */
1799 public synchronized void addWindowStateListener(WindowStateListener l) {
1800 if (l == null) {
1801 return;
1802 }
1803 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1804 newEventsOnly = true;
1805 }
1806
1807 /**
1808 * Adds the specified window focus listener to receive window events
1809 * from this window.
1810 * If l is null, no exception is thrown and no action is performed.
1811 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1812 * >AWT Threading Issues</a> for details on AWT's threading model.
1813 *
1814 * @param l the window focus listener
1815 * @see #removeWindowFocusListener
1816 * @see #getWindowFocusListeners
1817 * @since 1.4
1818 */
1819 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1820 if (l == null) {
1821 return;
1822 }
1823 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1824 newEventsOnly = true;
1825 }
1826
1827 /**
1828 * Removes the specified window listener so that it no longer
1829 * receives window events from this window.
1830 * If l is null, no exception is thrown and no action is performed.
1831 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1832 * >AWT Threading Issues</a> for details on AWT's threading model.
1833 *
1834 * @param l the window listener
1835 * @see #addWindowListener
1836 * @see #getWindowListeners
1837 */
1838 public synchronized void removeWindowListener(WindowListener l) {
1839 if (l == null) {
1840 return;
1841 }
1842 windowListener = AWTEventMulticaster.remove(windowListener, l);
1843 }
1844
1845 /**
1846 * Removes the specified window state listener so that it no
1847 * longer receives window events from this window. If
1848 * {@code l} is {@code null}, no exception is thrown and
1849 * no action is performed.
1850 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1851 * >AWT Threading Issues</a> for details on AWT's threading model.
1852 *
1853 * @param l the window state listener
1854 * @see #addWindowStateListener
1855 * @see #getWindowStateListeners
1856 * @since 1.4
1857 */
1858 public synchronized void removeWindowStateListener(WindowStateListener l) {
1859 if (l == null) {
1860 return;
1861 }
1862 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1863 }
1864
1865 /**
1866 * Removes the specified window focus listener so that it no longer
1867 * receives window events from this window.
1868 * If l is null, no exception is thrown and no action is performed.
1869 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1870 * >AWT Threading Issues</a> for details on AWT's threading model.
1871 *
1872 * @param l the window focus listener
1873 * @see #addWindowFocusListener
1874 * @see #getWindowFocusListeners
1875 * @since 1.4
1876 */
1877 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1878 if (l == null) {
1879 return;
1880 }
1881 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1882 }
1883
1884 /**
1885 * Returns an array of all the window listeners
1886 * registered on this window.
1887 *
1888 * @return all of this window's {@code WindowListener}s
1889 * or an empty array if no window
1890 * listeners are currently registered
1891 *
1892 * @see #addWindowListener
1893 * @see #removeWindowListener
1894 * @since 1.4
1895 */
1896 public synchronized WindowListener[] getWindowListeners() {
1897 return getListeners(WindowListener.class);
1898 }
1899
1900 /**
1901 * Returns an array of all the window focus listeners
1902 * registered on this window.
1903 *
1904 * @return all of this window's {@code WindowFocusListener}s
1905 * or an empty array if no window focus
1906 * listeners are currently registered
1907 *
1908 * @see #addWindowFocusListener
1909 * @see #removeWindowFocusListener
1910 * @since 1.4
1911 */
1912 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1913 return getListeners(WindowFocusListener.class);
1914 }
1915
1916 /**
1917 * Returns an array of all the window state listeners
1918 * registered on this window.
1919 *
1920 * @return all of this window's {@code WindowStateListener}s
1921 * or an empty array if no window state
1922 * listeners are currently registered
1923 *
1924 * @see #addWindowStateListener
1925 * @see #removeWindowStateListener
1926 * @since 1.4
1927 */
1928 public synchronized WindowStateListener[] getWindowStateListeners() {
1929 return getListeners(WindowStateListener.class);
1930 }
1931
1932
1933 /**
1934 * Returns an array of all the objects currently registered
1935 * as <code><em>Foo</em>Listener</code>s
1936 * upon this {@code Window}.
1937 * <code><em>Foo</em>Listener</code>s are registered using the
1938 * <code>add<em>Foo</em>Listener</code> method.
1939 *
1940 * <p>
1941 *
1942 * You can specify the {@code listenerType} argument
1943 * with a class literal, such as
1944 * <code><em>Foo</em>Listener.class</code>.
1945 * For example, you can query a
1946 * {@code Window w}
1947 * for its window listeners with the following code:
1948 *
1949 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1950 *
1951 * If no such listeners exist, this method returns an empty array.
1952 *
1953 * @param listenerType the type of listeners requested; this parameter
1954 * should specify an interface that descends from
1955 * {@code java.util.EventListener}
1956 * @return an array of all objects registered as
1957 * <code><em>Foo</em>Listener</code>s on this window,
1958 * or an empty array if no such
1959 * listeners have been added
1960 * @exception ClassCastException if {@code listenerType}
1961 * doesn't specify a class or interface that implements
1962 * {@code java.util.EventListener}
1963 * @exception NullPointerException if {@code listenerType} is {@code null}
1964 *
1965 * @see #getWindowListeners
1966 * @since 1.3
1967 */
1968 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1969 EventListener l = null;
1970 if (listenerType == WindowFocusListener.class) {
1971 l = windowFocusListener;
1972 } else if (listenerType == WindowStateListener.class) {
1973 l = windowStateListener;
1974 } else if (listenerType == WindowListener.class) {
1975 l = windowListener;
1976 } else {
1977 return super.getListeners(listenerType);
1978 }
1979 return AWTEventMulticaster.getListeners(l, listenerType);
1980 }
1981
1982 // REMIND: remove when filtering is handled at lower level
1983 boolean eventEnabled(AWTEvent e) {
1984 switch(e.id) {
1985 case WindowEvent.WINDOW_OPENED:
1986 case WindowEvent.WINDOW_CLOSING:
1987 case WindowEvent.WINDOW_CLOSED:
1988 case WindowEvent.WINDOW_ICONIFIED:
1989 case WindowEvent.WINDOW_DEICONIFIED:
1990 case WindowEvent.WINDOW_ACTIVATED:
1991 case WindowEvent.WINDOW_DEACTIVATED:
1992 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1993 windowListener != null) {
1994 return true;
1995 }
1996 return false;
1997 case WindowEvent.WINDOW_GAINED_FOCUS:
1998 case WindowEvent.WINDOW_LOST_FOCUS:
1999 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
2000 windowFocusListener != null) {
2001 return true;
2002 }
2003 return false;
2004 case WindowEvent.WINDOW_STATE_CHANGED:
2005 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
2006 windowStateListener != null) {
2007 return true;
2008 }
2009 return false;
2010 default:
2011 break;
2012 }
2013 return super.eventEnabled(e);
2014 }
2015
2016 /**
2017 * Processes events on this window. If the event is an
2018 * {@code WindowEvent}, it invokes the
2019 * {@code processWindowEvent} method, else it invokes its
2020 * superclass's {@code processEvent}.
2021 * <p>Note that if the event parameter is {@code null}
2022 * the behavior is unspecified and may result in an
2023 * exception.
2024 *
2025 * @param e the event
2026 */
2027 protected void processEvent(AWTEvent e) {
2028 if (e instanceof WindowEvent) {
2029 switch (e.getID()) {
2030 case WindowEvent.WINDOW_OPENED:
2031 case WindowEvent.WINDOW_CLOSING:
2032 case WindowEvent.WINDOW_CLOSED:
2033 case WindowEvent.WINDOW_ICONIFIED:
2034 case WindowEvent.WINDOW_DEICONIFIED:
2035 case WindowEvent.WINDOW_ACTIVATED:
2036 case WindowEvent.WINDOW_DEACTIVATED:
2037 processWindowEvent((WindowEvent)e);
2038 break;
2039 case WindowEvent.WINDOW_GAINED_FOCUS:
2040 case WindowEvent.WINDOW_LOST_FOCUS:
2041 processWindowFocusEvent((WindowEvent)e);
2042 break;
2043 case WindowEvent.WINDOW_STATE_CHANGED:
2044 processWindowStateEvent((WindowEvent)e);
2045 break;
2046 }
2047 return;
2048 }
2049 super.processEvent(e);
2050 }
2051
2052 /**
2053 * Processes window events occurring on this window by
2054 * dispatching them to any registered WindowListener objects.
2055 * NOTE: This method will not be called unless window events
2056 * are enabled for this component; this happens when one of the
2057 * following occurs:
2058 * <ul>
2059 * <li>A WindowListener object is registered via
2060 * {@code addWindowListener}
2061 * <li>Window events are enabled via {@code enableEvents}
2062 * </ul>
2063 * <p>Note that if the event parameter is {@code null}
2064 * the behavior is unspecified and may result in an
2065 * exception.
2066 *
2067 * @param e the window event
2068 * @see Component#enableEvents
2069 */
2070 protected void processWindowEvent(WindowEvent e) {
2071 WindowListener listener = windowListener;
2072 if (listener != null) {
2073 switch(e.getID()) {
2074 case WindowEvent.WINDOW_OPENED:
2075 listener.windowOpened(e);
2076 break;
2077 case WindowEvent.WINDOW_CLOSING:
2078 listener.windowClosing(e);
2079 break;
2080 case WindowEvent.WINDOW_CLOSED:
2081 listener.windowClosed(e);
2082 break;
2083 case WindowEvent.WINDOW_ICONIFIED:
2084 listener.windowIconified(e);
2085 break;
2086 case WindowEvent.WINDOW_DEICONIFIED:
2087 listener.windowDeiconified(e);
2088 break;
2089 case WindowEvent.WINDOW_ACTIVATED:
2090 listener.windowActivated(e);
2091 break;
2092 case WindowEvent.WINDOW_DEACTIVATED:
2093 listener.windowDeactivated(e);
2094 break;
2095 default:
2096 break;
2097 }
2098 }
2099 }
2100
2101 /**
2102 * Processes window focus event occurring on this window by
2103 * dispatching them to any registered WindowFocusListener objects.
2104 * NOTE: this method will not be called unless window focus events
2105 * are enabled for this window. This happens when one of the
2106 * following occurs:
2107 * <ul>
2108 * <li>a WindowFocusListener is registered via
2109 * {@code addWindowFocusListener}
2110 * <li>Window focus events are enabled via {@code enableEvents}
2111 * </ul>
2112 * <p>Note that if the event parameter is {@code null}
2113 * the behavior is unspecified and may result in an
2114 * exception.
2115 *
2116 * @param e the window focus event
2117 * @see Component#enableEvents
2118 * @since 1.4
2119 */
2120 protected void processWindowFocusEvent(WindowEvent e) {
2121 WindowFocusListener listener = windowFocusListener;
2122 if (listener != null) {
2123 switch (e.getID()) {
2124 case WindowEvent.WINDOW_GAINED_FOCUS:
2125 listener.windowGainedFocus(e);
2126 break;
2127 case WindowEvent.WINDOW_LOST_FOCUS:
2128 listener.windowLostFocus(e);
2129 break;
2130 default:
2131 break;
2132 }
2133 }
2134 }
2135
2136 /**
2137 * Processes window state event occurring on this window by
2138 * dispatching them to any registered {@code WindowStateListener}
2139 * objects.
2140 * NOTE: this method will not be called unless window state events
2141 * are enabled for this window. This happens when one of the
2142 * following occurs:
2143 * <ul>
2144 * <li>a {@code WindowStateListener} is registered via
2145 * {@code addWindowStateListener}
2146 * <li>window state events are enabled via {@code enableEvents}
2147 * </ul>
2148 * <p>Note that if the event parameter is {@code null}
2149 * the behavior is unspecified and may result in an
2150 * exception.
2151 *
2152 * @param e the window state event
2153 * @see java.awt.Component#enableEvents
2154 * @since 1.4
2155 */
2156 protected void processWindowStateEvent(WindowEvent e) {
2157 WindowStateListener listener = windowStateListener;
2158 if (listener != null) {
2159 switch (e.getID()) {
2160 case WindowEvent.WINDOW_STATE_CHANGED:
2161 listener.windowStateChanged(e);
2162 break;
2163 default:
2164 break;
2165 }
2166 }
2167 }
2168
2169 /**
2170 * Implements a debugging hook -- checks to see if
2171 * the user has typed <i>control-shift-F1</i>. If so,
2172 * the list of child windows is dumped to {@code System.out}.
2173 * @param e the keyboard event
2174 */
2175 void preProcessKeyEvent(KeyEvent e) {
2176 // Dump the list of child windows to System.out if debug is enabled.
2177 if (DebugSettings.getInstance().getBoolean("on", false)) {
2178 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2179 e.isControlDown() && e.isShiftDown() &&
2180 e.getID() == KeyEvent.KEY_PRESSED) {
2181 list(System.out, 0);
2182 }
2183 }
2184 }
2185
2186 void postProcessKeyEvent(KeyEvent e) {
2187 // Do nothing
2188 }
2189
2190
2191 /**
2192 * Sets whether this window should always be above other windows. If
2193 * there are multiple always-on-top windows, their relative order is
2194 * unspecified and platform dependent.
2195 * <p>
2196 * If some other window is already always-on-top then the
2197 * relative order between these windows is unspecified (depends on
2198 * platform). No window can be brought to be over the always-on-top
2199 * window except maybe another always-on-top window.
2200 * <p>
2201 * All windows owned by an always-on-top window inherit this state and
2202 * automatically become always-on-top. If a window ceases to be
2203 * always-on-top, the windows that it owns will no longer be
2204 * always-on-top. When an always-on-top window is sent {@link #toBack
2205 * toBack}, its always-on-top state is set to {@code false}.
2206 *
2207 * <p> When this method is called on a window with a value of
2208 * {@code true}, and the window is visible and the platform
2209 * supports always-on-top for this window, the window is immediately
2210 * brought forward, "sticking" it in the top-most position. If the
2211 * window isn`t currently visible, this method sets the always-on-top
2212 * state to {@code true} but does not bring the window forward.
2213 * When the window is later shown, it will be always-on-top.
2214 *
2215 * <p> When this method is called on a window with a value of
2216 * {@code false} the always-on-top state is set to normal. It may also
2217 * cause an unspecified, platform-dependent change in the z-order of
2218 * top-level windows, but other always-on-top windows will remain in
2219 * top-most position. Calling this method with a value of {@code false}
2220 * on a window that has a normal state has no effect.
2221 *
2222 * <p><b>Note</b>: some platforms might not support always-on-top
2223 * windows. To detect if always-on-top windows are supported by the
2224 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2225 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2226 * isn't supported for this window or this window's toolkit does not
2227 * support always-on-top windows, calling this method has no effect.
2228 * <p>
2229 * If a SecurityManager is installed, the calling thread must be
2230 * granted the AWTPermission "setWindowAlwaysOnTop" in
2231 * order to set the value of this property. If this
2232 * permission is not granted, this method will throw a
2233 * SecurityException, and the current value of the property will
2234 * be left unchanged.
2235 *
2236 * @param alwaysOnTop true if the window should always be above other
2237 * windows
2238 * @throws SecurityException if the calling thread does not have
2239 * permission to set the value of always-on-top property
2240 *
2241 * @see #isAlwaysOnTop
2242 * @see #toFront
2243 * @see #toBack
2244 * @see AWTPermission
2245 * @see #isAlwaysOnTopSupported
2246 * @see #getToolkit
2247 * @see Toolkit#isAlwaysOnTopSupported
2248 * @since 1.5
2249 */
2250 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2251 SecurityManager security = System.getSecurityManager();
2252 if (security != null) {
2253 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2254 }
2255
2256 boolean oldAlwaysOnTop;
2257 synchronized(this) {
2258 oldAlwaysOnTop = this.alwaysOnTop;
2259 this.alwaysOnTop = alwaysOnTop;
2260 }
2261 if (oldAlwaysOnTop != alwaysOnTop ) {
2262 if (isAlwaysOnTopSupported()) {
2263 WindowPeer peer = (WindowPeer)this.peer;
2264 synchronized(getTreeLock()) {
2265 if (peer != null) {
2266 peer.updateAlwaysOnTopState();
2267 }
2268 }
2269 }
2270 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2271 }
2272 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2273 }
2274
2275 @SuppressWarnings({"rawtypes", "unchecked"})
2276 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2277 WeakReference<Window>[] ownedWindowArray;
2278 synchronized (ownedWindowList) {
2279 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2280 ownedWindowList.copyInto(ownedWindowArray);
2281 }
2282
2283 for (WeakReference<Window> ref : ownedWindowArray) {
2284 Window window = ref.get();
2285 if (window != null) {
2286 try {
2287 window.setAlwaysOnTop(alwaysOnTop);
2288 } catch (SecurityException ignore) {
2289 }
2290 }
2291 }
2292 }
2293
2294 /**
2295 * Returns whether the always-on-top mode is supported for this
2296 * window. Some platforms may not support always-on-top windows, some
2297 * may support only some kinds of top-level windows; for example,
2298 * a platform may not support always-on-top modal dialogs.
2299 *
2300 * @return {@code true}, if the always-on-top mode is supported for
2301 * this window and this window's toolkit supports always-on-top windows,
2302 * {@code false} otherwise
2303 *
2304 * @see #setAlwaysOnTop(boolean)
2305 * @see #getToolkit
2306 * @see Toolkit#isAlwaysOnTopSupported
2307 * @since 1.6
2308 */
2309 public boolean isAlwaysOnTopSupported() {
2310 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2311 }
2312
2313
2314 /**
2315 * Returns whether this window is an always-on-top window.
2316 * @return {@code true}, if the window is in always-on-top state,
2317 * {@code false} otherwise
2318 * @see #setAlwaysOnTop
2319 * @since 1.5
2320 */
2321 public final boolean isAlwaysOnTop() {
2322 return alwaysOnTop;
2323 }
2324
2325
2326 /**
2327 * Returns the child Component of this Window that has focus if this Window
2328 * is focused; returns null otherwise.
2329 *
2330 * @return the child Component with focus, or null if this Window is not
2331 * focused
2332 * @see #getMostRecentFocusOwner
2333 * @see #isFocused
2334 */
2335 public Component getFocusOwner() {
2336 return (isFocused())
2337 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2338 getFocusOwner()
2339 : null;
2340 }
2341
2342 /**
2343 * Returns the child Component of this Window that will receive the focus
2344 * when this Window is focused. If this Window is currently focused, this
2345 * method returns the same Component as {@code getFocusOwner()}. If
2346 * this Window is not focused, then the child Component that most recently
2347 * requested focus will be returned. If no child Component has ever
2348 * requested focus, and this is a focusable Window, then this Window's
2349 * initial focusable Component is returned. If no child Component has ever
2350 * requested focus, and this is a non-focusable Window, null is returned.
2351 *
2352 * @return the child Component that will receive focus when this Window is
2353 * focused
2354 * @see #getFocusOwner
2355 * @see #isFocused
2356 * @see #isFocusableWindow
2357 * @since 1.4
2358 */
2359 public Component getMostRecentFocusOwner() {
2360 if (isFocused()) {
2361 return getFocusOwner();
2362 } else {
2363 Component mostRecent =
2364 KeyboardFocusManager.getMostRecentFocusOwner(this);
2365 if (mostRecent != null) {
2366 return mostRecent;
2367 } else {
2368 return (isFocusableWindow())
2369 ? getFocusTraversalPolicy().getInitialComponent(this)
2370 : null;
2371 }
2372 }
2373 }
2374
2375 /**
2376 * Returns whether this Window is active. Only a Frame or a Dialog may be
2377 * active. The native windowing system may denote the active Window or its
2378 * children with special decorations, such as a highlighted title bar. The
2379 * active Window is always either the focused Window, or the first Frame or
2380 * Dialog that is an owner of the focused Window.
2381 *
2382 * @return whether this is the active Window.
2383 * @see #isFocused
2384 * @since 1.4
2385 */
2386 public boolean isActive() {
2387 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2388 getActiveWindow() == this);
2389 }
2390
2391 /**
2392 * Returns whether this Window is focused. If there exists a focus owner,
2393 * the focused Window is the Window that is, or contains, that focus owner.
2394 * If there is no focus owner, then no Window is focused.
2395 * <p>
2396 * If the focused Window is a Frame or a Dialog it is also the active
2397 * Window. Otherwise, the active Window is the first Frame or Dialog that
2398 * is an owner of the focused Window.
2399 *
2400 * @return whether this is the focused Window.
2401 * @see #isActive
2402 * @since 1.4
2403 */
2404 public boolean isFocused() {
2405 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2406 getGlobalFocusedWindow() == this);
2407 }
2408
2409 /**
2410 * Gets a focus traversal key for this Window. (See {@code
2411 * setFocusTraversalKeys} for a full description of each key.)
2412 * <p>
2413 * If the traversal key has not been explicitly set for this Window,
2414 * then this Window's parent's traversal key is returned. If the
2415 * traversal key has not been explicitly set for any of this Window's
2416 * ancestors, then the current KeyboardFocusManager's default traversal key
2417 * is returned.
2418 *
2419 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2420 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2421 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2422 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2423 * @return the AWTKeyStroke for the specified key
2424 * @see Container#setFocusTraversalKeys
2425 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2426 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2427 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2428 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2429 * @throws IllegalArgumentException if id is not one of
2430 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2431 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2432 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2433 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2434 * @since 1.4
2435 */
2436 @SuppressWarnings("unchecked")
2437 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2438 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2439 throw new IllegalArgumentException("invalid focus traversal key identifier");
2440 }
2441
2442 // Okay to return Set directly because it is an unmodifiable view
2443 @SuppressWarnings("rawtypes")
2444 Set keystrokes = (focusTraversalKeys != null)
2445 ? focusTraversalKeys[id]
2446 : null;
2447
2448 if (keystrokes != null) {
2449 return keystrokes;
2450 } else {
2451 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2452 getDefaultFocusTraversalKeys(id);
2453 }
2454 }
2455
2456 /**
2457 * Does nothing because Windows must always be roots of a focus traversal
2458 * cycle. The passed-in value is ignored.
2459 *
2460 * @param focusCycleRoot this value is ignored
2461 * @see #isFocusCycleRoot
2462 * @see Container#setFocusTraversalPolicy
2463 * @see Container#getFocusTraversalPolicy
2464 * @since 1.4
2465 */
2466 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2467 }
2468
2469 /**
2470 * Always returns {@code true} because all Windows must be roots of a
2471 * focus traversal cycle.
2472 *
2473 * @return {@code true}
2474 * @see #setFocusCycleRoot
2475 * @see Container#setFocusTraversalPolicy
2476 * @see Container#getFocusTraversalPolicy
2477 * @since 1.4
2478 */
2479 public final boolean isFocusCycleRoot() {
2480 return true;
2481 }
2482
2483 /**
2484 * Always returns {@code null} because Windows have no ancestors; they
2485 * represent the top of the Component hierarchy.
2486 *
2487 * @return {@code null}
2488 * @see Container#isFocusCycleRoot()
2489 * @since 1.4
2490 */
2491 public final Container getFocusCycleRootAncestor() {
2492 return null;
2493 }
2494
2495 /**
2496 * Returns whether this Window can become the focused Window, that is,
2497 * whether this Window or any of its subcomponents can become the focus
2498 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2499 * must be set to {@code true}. For a Window which is not a Frame or
2500 * Dialog to be focusable, its focusable Window state must be set to
2501 * {@code true}, its nearest owning Frame or Dialog must be
2502 * showing on the screen, and it must contain at least one Component in
2503 * its focus traversal cycle. If any of these conditions is not met, then
2504 * neither this Window nor any of its subcomponents can become the focus
2505 * owner.
2506 *
2507 * @return {@code true} if this Window can be the focused Window;
2508 * {@code false} otherwise
2509 * @see #getFocusableWindowState
2510 * @see #setFocusableWindowState
2511 * @see #isShowing
2512 * @see Component#isFocusable
2513 * @since 1.4
2514 */
2515 public final boolean isFocusableWindow() {
2516 // If a Window/Frame/Dialog was made non-focusable, then it is always
2517 // non-focusable.
2518 if (!getFocusableWindowState()) {
2519 return false;
2520 }
2521
2522 // All other tests apply only to Windows.
2523 if (this instanceof Frame || this instanceof Dialog) {
2524 return true;
2525 }
2526
2527 // A Window must have at least one Component in its root focus
2528 // traversal cycle to be focusable.
2529 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2530 return false;
2531 }
2532
2533 // A Window's nearest owning Frame or Dialog must be showing on the
2534 // screen.
2535 for (Window owner = getOwner(); owner != null;
2536 owner = owner.getOwner())
2537 {
2538 if (owner instanceof Frame || owner instanceof Dialog) {
2539 return owner.isShowing();
2540 }
2541 }
2542
2543 return false;
2544 }
2545
2546 /**
2547 * Returns whether this Window can become the focused Window if it meets
2548 * the other requirements outlined in {@code isFocusableWindow}. If
2549 * this method returns {@code false}, then
2550 * {@code isFocusableWindow} will return {@code false} as well.
2551 * If this method returns {@code true}, then
2552 * {@code isFocusableWindow} may return {@code true} or
2553 * {@code false} depending upon the other requirements which must be
2554 * met in order for a Window to be focusable.
2555 * <p>
2556 * By default, all Windows have a focusable Window state of
2557 * {@code true}.
2558 *
2559 * @return whether this Window can be the focused Window
2560 * @see #isFocusableWindow
2561 * @see #setFocusableWindowState
2562 * @see #isShowing
2563 * @see Component#setFocusable
2564 * @since 1.4
2565 */
2566 public boolean getFocusableWindowState() {
2567 return focusableWindowState;
2568 }
2569
2570 /**
2571 * Sets whether this Window can become the focused Window if it meets
2572 * the other requirements outlined in {@code isFocusableWindow}. If
2573 * this Window's focusable Window state is set to {@code false}, then
2574 * {@code isFocusableWindow} will return {@code false}. If this
2575 * Window's focusable Window state is set to {@code true}, then
2576 * {@code isFocusableWindow} may return {@code true} or
2577 * {@code false} depending upon the other requirements which must be
2578 * met in order for a Window to be focusable.
2579 * <p>
2580 * Setting a Window's focusability state to {@code false} is the
2581 * standard mechanism for an application to identify to the AWT a Window
2582 * which will be used as a floating palette or toolbar, and thus should be
2583 * a non-focusable Window.
2584 *
2585 * Setting the focusability state on a visible {@code Window}
2586 * can have a delayed effect on some platforms — the actual
2587 * change may happen only when the {@code Window} becomes
2588 * hidden and then visible again. To ensure consistent behavior
2589 * across platforms, set the {@code Window}'s focusable state
2590 * when the {@code Window} is invisible and then show it.
2591 *
2592 * @param focusableWindowState whether this Window can be the focused
2593 * Window
2594 * @see #isFocusableWindow
2595 * @see #getFocusableWindowState
2596 * @see #isShowing
2597 * @see Component#setFocusable
2598 * @since 1.4
2599 */
2600 public void setFocusableWindowState(boolean focusableWindowState) {
2601 boolean oldFocusableWindowState;
2602 synchronized (this) {
2603 oldFocusableWindowState = this.focusableWindowState;
2604 this.focusableWindowState = focusableWindowState;
2605 }
2606 WindowPeer peer = (WindowPeer)this.peer;
2607 if (peer != null) {
2608 peer.updateFocusableWindowState();
2609 }
2610 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2611 focusableWindowState);
2612 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2613 for (Window owner = getOwner();
2614 owner != null;
2615 owner = owner.getOwner())
2616 {
2617 Component toFocus =
2618 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2619 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) {
2620 return;
2621 }
2622 }
2623 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2624 clearGlobalFocusOwnerPriv();
2625 }
2626 }
2627
2628 /**
2629 * Sets whether this window should receive focus on
2630 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2631 * or being moved to the front (with a call to {@link #toFront}).
2632 * <p>
2633 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2634 * (e.g. when showing an owner of the window makes the window to be shown).
2635 * {@link #toFront} may also be called indirectly (e.g. when
2636 * {@link #setVisible setVisible(true)} is called on already visible window).
2637 * In all such cases this property takes effect as well.
2638 * <p>
2639 * The value of the property is not inherited by owned windows.
2640 *
2641 * @param autoRequestFocus whether this window should be focused on
2642 * subsequently being shown or being moved to the front
2643 * @see #isAutoRequestFocus
2644 * @see #isFocusableWindow
2645 * @see #setVisible
2646 * @see #toFront
2647 * @since 1.7
2648 */
2649 public void setAutoRequestFocus(boolean autoRequestFocus) {
2650 this.autoRequestFocus = autoRequestFocus;
2651 }
2652
2653 /**
2654 * Returns whether this window should receive focus on subsequently being shown
2655 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2656 * (with a call to {@link #toFront}).
2657 * <p>
2658 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2659 *
2660 * @return {@code autoRequestFocus} value
2661 * @see #setAutoRequestFocus
2662 * @since 1.7
2663 */
2664 public boolean isAutoRequestFocus() {
2665 return autoRequestFocus;
2666 }
2667
2668 /**
2669 * Adds a PropertyChangeListener to the listener list. The listener is
2670 * registered for all bound properties of this class, including the
2671 * following:
2672 * <ul>
2673 * <li>this Window's font ("font")</li>
2674 * <li>this Window's background color ("background")</li>
2675 * <li>this Window's foreground color ("foreground")</li>
2676 * <li>this Window's focusability ("focusable")</li>
2677 * <li>this Window's focus traversal keys enabled state
2678 * ("focusTraversalKeysEnabled")</li>
2679 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2680 * ("forwardFocusTraversalKeys")</li>
2681 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2682 * ("backwardFocusTraversalKeys")</li>
2683 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2684 * ("upCycleFocusTraversalKeys")</li>
2685 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2686 * ("downCycleFocusTraversalKeys")</li>
2687 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2688 * </li>
2689 * <li>this Window's focusable Window state ("focusableWindowState")
2690 * </li>
2691 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2692 * </ul>
2693 * Note that if this Window is inheriting a bound property, then no
2694 * event will be fired in response to a change in the inherited property.
2695 * <p>
2696 * If listener is null, no exception is thrown and no action is performed.
2697 *
2698 * @param listener the PropertyChangeListener to be added
2699 *
2700 * @see Component#removePropertyChangeListener
2701 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2702 */
2703 public void addPropertyChangeListener(PropertyChangeListener listener) {
2704 super.addPropertyChangeListener(listener);
2705 }
2706
2707 /**
2708 * Adds a PropertyChangeListener to the listener list for a specific
2709 * property. The specified property may be user-defined, or one of the
2710 * following:
2711 * <ul>
2712 * <li>this Window's font ("font")</li>
2713 * <li>this Window's background color ("background")</li>
2714 * <li>this Window's foreground color ("foreground")</li>
2715 * <li>this Window's focusability ("focusable")</li>
2716 * <li>this Window's focus traversal keys enabled state
2717 * ("focusTraversalKeysEnabled")</li>
2718 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2719 * ("forwardFocusTraversalKeys")</li>
2720 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2721 * ("backwardFocusTraversalKeys")</li>
2722 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2723 * ("upCycleFocusTraversalKeys")</li>
2724 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2725 * ("downCycleFocusTraversalKeys")</li>
2726 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2727 * </li>
2728 * <li>this Window's focusable Window state ("focusableWindowState")
2729 * </li>
2730 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2731 * </ul>
2732 * Note that if this Window is inheriting a bound property, then no
2733 * event will be fired in response to a change in the inherited property.
2734 * <p>
2735 * If listener is null, no exception is thrown and no action is performed.
2736 *
2737 * @param propertyName one of the property names listed above
2738 * @param listener the PropertyChangeListener to be added
2739 *
2740 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2741 * @see Component#removePropertyChangeListener
2742 */
2743 public void addPropertyChangeListener(String propertyName,
2744 PropertyChangeListener listener) {
2745 super.addPropertyChangeListener(propertyName, listener);
2746 }
2747
2748 /**
2749 * Indicates if this container is a validate root.
2750 * <p>
2751 * {@code Window} objects are the validate roots, and, therefore, they
2752 * override this method to return {@code true}.
2753 *
2754 * @return {@code true}
2755 * @since 1.7
2756 * @see java.awt.Container#isValidateRoot
2757 */
2758 @Override
2759 public boolean isValidateRoot() {
2760 return true;
2761 }
2762
2763 /**
2764 * Dispatches an event to this window or one of its sub components.
2765 * @param e the event
2766 */
2767 void dispatchEventImpl(AWTEvent e) {
2768 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2769 invalidate();
2770 validate();
2771 }
2772 super.dispatchEventImpl(e);
2773 }
2774
2775 /**
2776 * @deprecated As of JDK version 1.1
2777 * replaced by {@code dispatchEvent(AWTEvent)}.
2778 */
2779 @Deprecated
2780 public boolean postEvent(Event e) {
2781 if (handleEvent(e)) {
2782 e.consume();
2783 return true;
2784 }
2785 return false;
2786 }
2787
2788 /**
2789 * Checks if this Window is showing on screen.
2790 * @see Component#setVisible
2791 */
2792 public boolean isShowing() {
2793 return visible;
2794 }
2795
2796 boolean isDisposing() {
2797 return disposing;
2798 }
2799
2800 /**
2801 * @deprecated As of J2SE 1.4, replaced by
2802 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2803 * @param rb the resource bundle
2804 */
2805 @Deprecated
2806 public void applyResourceBundle(ResourceBundle rb) {
2807 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2808 }
2809
2810 /**
2811 * @deprecated As of J2SE 1.4, replaced by
2812 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2813 * @param rbName the resource name
2814 */
2815 @Deprecated
2816 public void applyResourceBundle(String rbName) {
2817 // Use the unnamed module from the TCCL or system class loader.
2818 ClassLoader cl = Thread.currentThread().getContextClassLoader();
2819 if (cl == null) {
2820 cl = ClassLoader.getSystemClassLoader();
2821 }
2822 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule()));
2823 }
2824
2825 /*
2826 * Support for tracking all windows owned by this window
2827 */
2828 void addOwnedWindow(WeakReference<Window> weakWindow) {
2829 if (weakWindow != null) {
2830 synchronized(ownedWindowList) {
2831 // this if statement should really be an assert, but we don't
2832 // have asserts...
2833 if (!ownedWindowList.contains(weakWindow)) {
2834 ownedWindowList.addElement(weakWindow);
2835 }
2836 }
2837 }
2838 }
2839
2840 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2841 if (weakWindow != null) {
2842 // synchronized block not required since removeElement is
2843 // already synchronized
2844 ownedWindowList.removeElement(weakWindow);
2845 }
2846 }
2847
2848 void connectOwnedWindow(Window child) {
2849 child.parent = this;
2850 addOwnedWindow(child.weakThis);
2851 child.disposerRecord.updateOwner();
2852 }
2853
2854 private void addToWindowList() {
2855 synchronized (Window.class) {
2856 @SuppressWarnings("unchecked")
2857 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2858 if (windowList == null) {
2859 windowList = new Vector<WeakReference<Window>>();
2860 appContext.put(Window.class, windowList);
2861 }
2862 windowList.add(weakThis);
2863 }
2864 }
2865
2866 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2867 synchronized (Window.class) {
2868 @SuppressWarnings("unchecked")
2869 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2870 if (windowList != null) {
2871 windowList.remove(weakThis);
2872 }
2873 }
2874 }
2875
2876 private void removeFromWindowList() {
2877 removeFromWindowList(appContext, weakThis);
2878 }
2879
2880 /**
2881 * Window type.
2882 *
2883 * Synchronization: ObjectLock
2884 */
2885 private Type type = Type.NORMAL;
2886
2887 /**
2888 * Sets the type of the window.
2889 *
2890 * This method can only be called while the window is not displayable.
2891 *
2892 * @param type the window type
2893 * @throws IllegalComponentStateException if the window
2894 * is displayable.
2895 * @throws IllegalArgumentException if the type is {@code null}
2896 * @see Component#isDisplayable
2897 * @see #getType
2898 * @since 1.7
2899 */
2900 public void setType(Type type) {
2901 if (type == null) {
2902 throw new IllegalArgumentException("type should not be null.");
2903 }
2904 synchronized (getTreeLock()) {
2905 if (isDisplayable()) {
2906 throw new IllegalComponentStateException(
2907 "The window is displayable.");
2908 }
2909 synchronized (getObjectLock()) {
2910 this.type = type;
2911 }
2912 }
2913 }
2914
2915 /**
2916 * Returns the type of the window.
2917 *
2918 * @return the type of the window
2919 * @see #setType
2920 * @since 1.7
2921 */
2922 public Type getType() {
2923 synchronized (getObjectLock()) {
2924 return type;
2925 }
2926 }
2927
2928 /**
2929 * The window serialized data version.
2930 *
2931 * @serial
2932 */
2933 private int windowSerializedDataVersion = 2;
2934
2935 /**
2936 * Writes default serializable fields to stream. Writes
2937 * a list of serializable {@code WindowListener}s and
2938 * {@code WindowFocusListener}s as optional data.
2939 * Writes a list of child windows as optional data.
2940 * Writes a list of icon images as optional data
2941 *
2942 * @param s the {@code ObjectOutputStream} to write
2943 * @serialData {@code null} terminated sequence of
2944 * 0 or more pairs; the pair consists of a {@code String}
2945 * and {@code Object}; the {@code String}
2946 * indicates the type of object and is one of the following:
2947 * {@code windowListenerK} indicating a
2948 * {@code WindowListener} object;
2949 * {@code windowFocusWindowK} indicating a
2950 * {@code WindowFocusListener} object;
2951 * {@code ownedWindowK} indicating a child
2952 * {@code Window} object
2953 *
2954 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2955 * @see Component#windowListenerK
2956 * @see Component#windowFocusListenerK
2957 * @see Component#ownedWindowK
2958 * @see #readObject(ObjectInputStream)
2959 */
2960 private void writeObject(ObjectOutputStream s) throws IOException {
2961 synchronized (this) {
2962 // Update old focusMgr fields so that our object stream can be read
2963 // by previous releases
2964 focusMgr = new FocusManager();
2965 focusMgr.focusRoot = this;
2966 focusMgr.focusOwner = getMostRecentFocusOwner();
2967
2968 s.defaultWriteObject();
2969
2970 // Clear fields so that we don't keep extra references around
2971 focusMgr = null;
2972
2973 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2974 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2975 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2976 }
2977
2978 s.writeObject(null);
2979
2980 synchronized (ownedWindowList) {
2981 for (int i = 0; i < ownedWindowList.size(); i++) {
2982 Window child = ownedWindowList.elementAt(i).get();
2983 if (child != null) {
2984 s.writeObject(ownedWindowK);
2985 s.writeObject(child);
2986 }
2987 }
2988 }
2989 s.writeObject(null);
2990
2991 //write icon array
2992 if (icons != null) {
2993 for (Image i : icons) {
2994 if (i instanceof Serializable) {
2995 s.writeObject(i);
2996 }
2997 }
2998 }
2999 s.writeObject(null);
3000 }
3001
3002 //
3003 // Part of deserialization procedure to be called before
3004 // user's code.
3005 //
3006 private void initDeserializedWindow() {
3007 setWarningString();
3008 inputContextLock = new Object();
3009
3010 // Deserialized Windows are not yet visible.
3011 visible = false;
3012
3013 weakThis = new WeakReference<>(this);
3014
3015 anchor = new Object();
3016 disposerRecord = new WindowDisposerRecord(appContext, this);
3017 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
3018
3019 addToWindowList();
3020 initGC(null);
3021 ownedWindowList = new Vector<>();
3022 }
3023
3024 private void deserializeResources(ObjectInputStream s)
3025 throws ClassNotFoundException, IOException, HeadlessException {
3026
3027 if (windowSerializedDataVersion < 2) {
3028 // Translate old-style focus tracking to new model. For 1.4 and
3029 // later releases, we'll rely on the Window's initial focusable
3030 // Component.
3031 if (focusMgr != null) {
3032 if (focusMgr.focusOwner != null) {
3033 KeyboardFocusManager.
3034 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3035 }
3036 }
3037
3038 // This field is non-transient and relies on default serialization.
3039 // However, the default value is insufficient, so we need to set
3040 // it explicitly for object data streams prior to 1.4.
3041 focusableWindowState = true;
3042
3043
3044 }
3045
3046 Object keyOrNull;
3047 while(null != (keyOrNull = s.readObject())) {
3048 String key = ((String)keyOrNull).intern();
3049
3050 if (windowListenerK == key) {
3051 addWindowListener((WindowListener)(s.readObject()));
3052 } else if (windowFocusListenerK == key) {
3053 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3054 } else if (windowStateListenerK == key) {
3055 addWindowStateListener((WindowStateListener)(s.readObject()));
3056 } else // skip value for unrecognized key
3057 s.readObject();
3058 }
3059
3060 try {
3061 while (null != (keyOrNull = s.readObject())) {
3062 String key = ((String)keyOrNull).intern();
3063
3064 if (ownedWindowK == key)
3065 connectOwnedWindow((Window) s.readObject());
3066
3067 else // skip value for unrecognized key
3068 s.readObject();
3069 }
3070
3071 //read icons
3072 Object obj = s.readObject(); //Throws OptionalDataException
3073 //for pre1.6 objects.
3074 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3075 //pre1.6 version if icons is null.
3076 while (obj != null) {
3077 if (obj instanceof Image) {
3078 icons.add((Image)obj);
3079 }
3080 obj = s.readObject();
3081 }
3082 }
3083 catch (OptionalDataException e) {
3084 // 1.1 serialized form
3085 // ownedWindowList will be updated by Frame.readObject
3086 }
3087
3088 }
3089
3090 /**
3091 * Reads the {@code ObjectInputStream} and an optional
3092 * list of listeners to receive various events fired by
3093 * the component; also reads a list of
3094 * (possibly {@code null}) child windows.
3095 * Unrecognized keys or values will be ignored.
3096 *
3097 * @param s the {@code ObjectInputStream} to read
3098 * @exception HeadlessException if
3099 * {@code GraphicsEnvironment.isHeadless} returns
3100 * {@code true}
3101 * @see java.awt.GraphicsEnvironment#isHeadless
3102 * @see #writeObject
3103 */
3104 private void readObject(ObjectInputStream s)
3105 throws ClassNotFoundException, IOException, HeadlessException
3106 {
3107 GraphicsEnvironment.checkHeadless();
3108 initDeserializedWindow();
3109 ObjectInputStream.GetField f = s.readFields();
3110
3111 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3112 state = f.get("state", 0);
3113 focusableWindowState = f.get("focusableWindowState", true);
3114 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3115 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3116 // Note: 1.4 (or later) doesn't use focusMgr
3117 focusMgr = (FocusManager)f.get("focusMgr", null);
3118 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3119 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3120 setModalExclusionType(et); // since 6.0
3121 boolean aot = f.get("alwaysOnTop", false);
3122 if(aot) {
3123 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3124 }
3125 shape = (Shape)f.get("shape", null);
3126 opacity = (Float)f.get("opacity", 1.0f);
3127
3128 this.securityWarningWidth = 0;
3129 this.securityWarningHeight = 0;
3130 this.securityWarningPointX = 2.0;
3131 this.securityWarningPointY = 0.0;
3132 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3133 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3134
3135 deserializeResources(s);
3136 }
3137
3138 /*
3139 * --- Accessibility Support ---
3140 *
3141 */
3142
3143 /**
3144 * Gets the AccessibleContext associated with this Window.
3145 * For windows, the AccessibleContext takes the form of an
3146 * AccessibleAWTWindow.
3147 * A new AccessibleAWTWindow instance is created if necessary.
3148 *
3149 * @return an AccessibleAWTWindow that serves as the
3150 * AccessibleContext of this Window
3151 * @since 1.3
3152 */
3153 public AccessibleContext getAccessibleContext() {
3154 if (accessibleContext == null) {
3155 accessibleContext = new AccessibleAWTWindow();
3156 }
3157 return accessibleContext;
3158 }
3159
3160 /**
3161 * This class implements accessibility support for the
3162 * {@code Window} class. It provides an implementation of the
3163 * Java Accessibility API appropriate to window user-interface elements.
3164 * @since 1.3
3165 */
3166 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3167 {
3168 /*
3169 * JDK 1.3 serialVersionUID
3170 */
3171 private static final long serialVersionUID = 4215068635060671780L;
3172
3173 /**
3174 * Get the role of this object.
3175 *
3176 * @return an instance of AccessibleRole describing the role of the
3177 * object
3178 * @see javax.accessibility.AccessibleRole
3179 */
3180 public AccessibleRole getAccessibleRole() {
3181 return AccessibleRole.WINDOW;
3182 }
3183
3184 /**
3185 * Get the state of this object.
3186 *
3187 * @return an instance of AccessibleStateSet containing the current
3188 * state set of the object
3189 * @see javax.accessibility.AccessibleState
3190 */
3191 public AccessibleStateSet getAccessibleStateSet() {
3192 AccessibleStateSet states = super.getAccessibleStateSet();
3193 if (getFocusOwner() != null) {
3194 states.add(AccessibleState.ACTIVE);
3195 }
3196 return states;
3197 }
3198
3199 } // inner class AccessibleAWTWindow
3200
3201 @Override
3202 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3203 if (gc == null) {
3204 gc = GraphicsEnvironment.
3205 getLocalGraphicsEnvironment().
3206 getDefaultScreenDevice().
3207 getDefaultConfiguration();
3208 }
3209 synchronized (getTreeLock()) {
3210 super.setGraphicsConfiguration(gc);
3211 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3212 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3213 }
3214 }
3215 }
3216
3217 /**
3218 * Sets the location of the window relative to the specified
3219 * component according to the following scenarios.
3220 * <p>
3221 * The target screen mentioned below is a screen to which
3222 * the window should be placed after the setLocationRelativeTo
3223 * method is called.
3224 * <ul>
3225 * <li>If the component is {@code null}, or the {@code
3226 * GraphicsConfiguration} associated with this component is
3227 * {@code null}, the window is placed in the center of the
3228 * screen. The center point can be obtained with the {@link
3229 * GraphicsEnvironment#getCenterPoint
3230 * GraphicsEnvironment.getCenterPoint} method.
3231 * <li>If the component is not {@code null}, but it is not
3232 * currently showing, the window is placed in the center of
3233 * the target screen defined by the {@code
3234 * GraphicsConfiguration} associated with this component.
3235 * <li>If the component is not {@code null} and is shown on
3236 * the screen, then the window is located in such a way that
3237 * the center of the window coincides with the center of the
3238 * component.
3239 * </ul>
3240 * <p>
3241 * If the screens configuration does not allow the window to
3242 * be moved from one screen to another, then the window is
3243 * only placed at the location determined according to the
3244 * above conditions and its {@code GraphicsConfiguration} is
3245 * not changed.
3246 * <p>
3247 * <b>Note</b>: If the lower edge of the window is out of the screen,
3248 * then the window is placed to the side of the {@code Component}
3249 * that is closest to the center of the screen. So if the
3250 * component is on the right part of the screen, the window
3251 * is placed to its left, and vice versa.
3252 * <p>
3253 * If after the window location has been calculated, the upper,
3254 * left, or right edge of the window is out of the screen,
3255 * then the window is located in such a way that the upper,
3256 * left, or right edge of the window coincides with the
3257 * corresponding edge of the screen. If both left and right
3258 * edges of the window are out of the screen, the window is
3259 * placed at the left side of the screen. The similar placement
3260 * will occur if both top and bottom edges are out of the screen.
3261 * In that case, the window is placed at the top side of the screen.
3262 * <p>
3263 * The method changes the geometry-related data. Therefore,
3264 * the native windowing system may ignore such requests, or it may modify
3265 * the requested data, so that the {@code Window} object is placed and sized
3266 * in a way that corresponds closely to the desktop settings.
3267 *
3268 * @param c the component in relation to which the window's location
3269 * is determined
3270 * @see java.awt.GraphicsEnvironment#getCenterPoint
3271 * @since 1.4
3272 */
3273 public void setLocationRelativeTo(Component c) {
3274 // target location
3275 int dx = 0, dy = 0;
3276 // target GC
3277 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3278 Rectangle gcBounds = gc.getBounds();
3279
3280 Dimension windowSize = getSize();
3281
3282 // search a top-level of c
3283 Window componentWindow = SunToolkit.getContainingWindow(c);
3284 if ((c == null) || (componentWindow == null)) {
3285 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3286 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3287 gcBounds = gc.getBounds();
3288 Point centerPoint = ge.getCenterPoint();
3289 dx = centerPoint.x - windowSize.width / 2;
3290 dy = centerPoint.y - windowSize.height / 2;
3291 } else if (!c.isShowing()) {
3292 gc = componentWindow.getGraphicsConfiguration();
3293 gcBounds = gc.getBounds();
3294 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3295 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3296 } else {
3297 gc = componentWindow.getGraphicsConfiguration();
3298 gcBounds = gc.getBounds();
3299 Dimension compSize = c.getSize();
3300 Point compLocation = c.getLocationOnScreen();
3301 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3302 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3303
3304 // Adjust for bottom edge being offscreen
3305 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3306 dy = gcBounds.y + gcBounds.height - windowSize.height;
3307 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3308 dx = compLocation.x + compSize.width;
3309 } else {
3310 dx = compLocation.x - windowSize.width;
3311 }
3312 }
3313 }
3314
3315 // Avoid being placed off the edge of the screen:
3316 // bottom
3317 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3318 dy = gcBounds.y + gcBounds.height - windowSize.height;
3319 }
3320 // top
3321 if (dy < gcBounds.y) {
3322 dy = gcBounds.y;
3323 }
3324 // right
3325 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3326 dx = gcBounds.x + gcBounds.width - windowSize.width;
3327 }
3328 // left
3329 if (dx < gcBounds.x) {
3330 dx = gcBounds.x;
3331 }
3332
3333 setLocation(dx, dy);
3334 }
3335
3336 /**
3337 * Overridden from Component. Top-level Windows should not propagate a
3338 * MouseWheelEvent beyond themselves into their owning Windows.
3339 */
3340 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3341
3342 /**
3343 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3344 */
3345 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3346
3347 /**
3348 * Creates a new strategy for multi-buffering on this component.
3349 * Multi-buffering is useful for rendering performance. This method
3350 * attempts to create the best strategy available with the number of
3351 * buffers supplied. It will always create a {@code BufferStrategy}
3352 * with that number of buffers.
3353 * A page-flipping strategy is attempted first, then a blitting strategy
3354 * using accelerated buffers. Finally, an unaccelerated blitting
3355 * strategy is used.
3356 * <p>
3357 * Each time this method is called,
3358 * the existing buffer strategy for this component is discarded.
3359 * @param numBuffers number of buffers to create
3360 * @exception IllegalArgumentException if numBuffers is less than 1.
3361 * @exception IllegalStateException if the component is not displayable
3362 * @see #isDisplayable
3363 * @see #getBufferStrategy
3364 * @since 1.4
3365 */
3366 public void createBufferStrategy(int numBuffers) {
3367 super.createBufferStrategy(numBuffers);
3368 }
3369
3370 /**
3371 * Creates a new strategy for multi-buffering on this component with the
3372 * required buffer capabilities. This is useful, for example, if only
3373 * accelerated memory or page flipping is desired (as specified by the
3374 * buffer capabilities).
3375 * <p>
3376 * Each time this method
3377 * is called, the existing buffer strategy for this component is discarded.
3378 * @param numBuffers number of buffers to create, including the front buffer
3379 * @param caps the required capabilities for creating the buffer strategy;
3380 * cannot be {@code null}
3381 * @exception AWTException if the capabilities supplied could not be
3382 * supported or met; this may happen, for example, if there is not enough
3383 * accelerated memory currently available, or if page flipping is specified
3384 * but not possible.
3385 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3386 * caps is {@code null}
3387 * @see #getBufferStrategy
3388 * @since 1.4
3389 */
3390 public void createBufferStrategy(int numBuffers,
3391 BufferCapabilities caps) throws AWTException {
3392 super.createBufferStrategy(numBuffers, caps);
3393 }
3394
3395 /**
3396 * Returns the {@code BufferStrategy} used by this component. This
3397 * method will return null if a {@code BufferStrategy} has not yet
3398 * been created or has been disposed.
3399 *
3400 * @return the buffer strategy used by this component
3401 * @see #createBufferStrategy
3402 * @since 1.4
3403 */
3404 public BufferStrategy getBufferStrategy() {
3405 return super.getBufferStrategy();
3406 }
3407
3408 Component getTemporaryLostComponent() {
3409 return temporaryLostComponent;
3410 }
3411 Component setTemporaryLostComponent(Component component) {
3412 Component previousComp = temporaryLostComponent;
3413 // Check that "component" is an acceptable focus owner and don't store it otherwise
3414 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3415 if (component == null || component.canBeFocusOwner()) {
3416 temporaryLostComponent = component;
3417 } else {
3418 temporaryLostComponent = null;
3419 }
3420 return previousComp;
3421 }
3422
3423 /**
3424 * Checks whether this window can contain focus owner.
3425 * Verifies that it is focusable and as container it can container focus owner.
3426 * @since 1.5
3427 */
3428 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3429 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3430 }
3431
3432 private volatile boolean locationByPlatform = locationByPlatformProp;
3433
3434
3435 /**
3436 * Sets whether this Window should appear at the default location for the
3437 * native windowing system or at the current location (returned by
3438 * {@code getLocation}) the next time the Window is made visible.
3439 * This behavior resembles a native window shown without programmatically
3440 * setting its location. Most windowing systems cascade windows if their
3441 * locations are not explicitly set. The actual location is determined once the
3442 * window is shown on the screen.
3443 * <p>
3444 * This behavior can also be enabled by setting the System Property
3445 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3446 * take precedence.
3447 * <p>
3448 * Calls to {@code setVisible}, {@code setLocation} and
3449 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3450 * this property of the Window.
3451 * <p>
3452 * For example, after the following code is executed:
3453 * <pre>
3454 * setLocationByPlatform(true);
3455 * setVisible(true);
3456 * boolean flag = isLocationByPlatform();
3457 * </pre>
3458 * The window will be shown at platform's default location and
3459 * {@code flag} will be {@code false}.
3460 * <p>
3461 * In the following sample:
3462 * <pre>
3463 * setLocationByPlatform(true);
3464 * setLocation(10, 10);
3465 * boolean flag = isLocationByPlatform();
3466 * setVisible(true);
3467 * </pre>
3468 * The window will be shown at (10, 10) and {@code flag} will be
3469 * {@code false}.
3470 *
3471 * @param locationByPlatform {@code true} if this Window should appear
3472 * at the default location, {@code false} if at the current location
3473 * @throws IllegalComponentStateException if the window
3474 * is showing on screen and locationByPlatform is {@code true}.
3475 * @see #setLocation
3476 * @see #isShowing
3477 * @see #setVisible
3478 * @see #isLocationByPlatform
3479 * @see java.lang.System#getProperty(String)
3480 * @since 1.5
3481 */
3482 public void setLocationByPlatform(boolean locationByPlatform) {
3483 synchronized (getTreeLock()) {
3484 if (locationByPlatform && isShowing()) {
3485 throw new IllegalComponentStateException("The window is showing on screen.");
3486 }
3487 this.locationByPlatform = locationByPlatform;
3488 }
3489 }
3490
3491 /**
3492 * Returns {@code true} if this Window will appear at the default location
3493 * for the native windowing system the next time this Window is made visible.
3494 * This method always returns {@code false} if the Window is showing on the
3495 * screen.
3496 *
3497 * @return whether this Window will appear at the default location
3498 * @see #setLocationByPlatform
3499 * @see #isShowing
3500 * @since 1.5
3501 */
3502 public boolean isLocationByPlatform() {
3503 return locationByPlatform;
3504 }
3505
3506 /**
3507 * {@inheritDoc}
3508 * <p>
3509 * The {@code width} or {@code height} values
3510 * are automatically enlarged if either is less than
3511 * the minimum size as specified by previous call to
3512 * {@code setMinimumSize}.
3513 * <p>
3514 * The method changes the geometry-related data. Therefore,
3515 * the native windowing system may ignore such requests, or it may modify
3516 * the requested data, so that the {@code Window} object is placed and sized
3517 * in a way that corresponds closely to the desktop settings.
3518 *
3519 * @see #getBounds
3520 * @see #setLocation(int, int)
3521 * @see #setLocation(Point)
3522 * @see #setSize(int, int)
3523 * @see #setSize(Dimension)
3524 * @see #setMinimumSize
3525 * @see #setLocationByPlatform
3526 * @see #isLocationByPlatform
3527 * @since 1.6
3528 */
3529 public void setBounds(int x, int y, int width, int height) {
3530 synchronized (getTreeLock()) {
3531 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3532 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3533 {
3534 locationByPlatform = false;
3535 }
3536 super.setBounds(x, y, width, height);
3537 }
3538 }
3539
3540 /**
3541 * {@inheritDoc}
3542 * <p>
3543 * The {@code r.width} or {@code r.height} values
3544 * will be automatically enlarged if either is less than
3545 * the minimum size as specified by previous call to
3546 * {@code setMinimumSize}.
3547 * <p>
3548 * The method changes the geometry-related data. Therefore,
3549 * the native windowing system may ignore such requests, or it may modify
3550 * the requested data, so that the {@code Window} object is placed and sized
3551 * in a way that corresponds closely to the desktop settings.
3552 *
3553 * @see #getBounds
3554 * @see #setLocation(int, int)
3555 * @see #setLocation(Point)
3556 * @see #setSize(int, int)
3557 * @see #setSize(Dimension)
3558 * @see #setMinimumSize
3559 * @see #setLocationByPlatform
3560 * @see #isLocationByPlatform
3561 * @since 1.6
3562 */
3563 public void setBounds(Rectangle r) {
3564 setBounds(r.x, r.y, r.width, r.height);
3565 }
3566
3567 /**
3568 * Determines whether this component will be displayed on the screen.
3569 * @return {@code true} if the component and all of its ancestors
3570 * until a toplevel window are visible, {@code false} otherwise
3571 */
3572 boolean isRecursivelyVisible() {
3573 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3574 // We're overriding isRecursivelyVisible to implement this policy.
3575 return visible;
3576 }
3577
3578
3579 // ******************** SHAPES & TRANSPARENCY CODE ********************
3580
3581 /**
3582 * Returns the opacity of the window.
3583 *
3584 * @return the opacity of the window
3585 *
3586 * @see Window#setOpacity(float)
3587 * @see GraphicsDevice.WindowTranslucency
3588 *
3589 * @since 1.7
3590 */
3591 public float getOpacity() {
3592 return opacity;
3593 }
3594
3595 /**
3596 * Sets the opacity of the window.
3597 * <p>
3598 * The opacity value is in the range [0..1]. Note that setting the opacity
3599 * level of 0 may or may not disable the mouse event handling on this
3600 * window. This is a platform-dependent behavior.
3601 * <p>
3602 * The following conditions must be met in order to set the opacity value
3603 * less than {@code 1.0f}:
3604 * <ul>
3605 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3606 * translucency must be supported by the underlying system
3607 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3608 * and {@link Dialog#setUndecorated})
3609 * <li>The window must not be in full-screen mode (see {@link
3610 * GraphicsDevice#setFullScreenWindow(Window)})
3611 * </ul>
3612 * <p>
3613 * If the requested opacity value is less than {@code 1.0f}, and any of the
3614 * above conditions are not met, the window opacity will not change,
3615 * and the {@code IllegalComponentStateException} will be thrown.
3616 * <p>
3617 * The translucency levels of individual pixels may also be effected by the
3618 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3619 * current shape of this window (see {@link #setShape(Shape)}).
3620 *
3621 * @param opacity the opacity level to set to the window
3622 *
3623 * @throws IllegalArgumentException if the opacity is out of the range
3624 * [0..1]
3625 * @throws IllegalComponentStateException if the window is decorated and
3626 * the opacity is less than {@code 1.0f}
3627 * @throws IllegalComponentStateException if the window is in full screen
3628 * mode, and the opacity is less than {@code 1.0f}
3629 * @throws UnsupportedOperationException if the {@code
3630 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3631 * translucency is not supported and the opacity is less than
3632 * {@code 1.0f}
3633 *
3634 * @see Window#getOpacity
3635 * @see Window#setBackground(Color)
3636 * @see Window#setShape(Shape)
3637 * @see Frame#isUndecorated
3638 * @see Dialog#isUndecorated
3639 * @see GraphicsDevice.WindowTranslucency
3640 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3641 *
3642 * @since 1.7
3643 */
3644 @SuppressWarnings("deprecation")
3645 public void setOpacity(float opacity) {
3646 synchronized (getTreeLock()) {
3647 if (opacity < 0.0f || opacity > 1.0f) {
3648 throw new IllegalArgumentException(
3649 "The value of opacity should be in the range [0.0f .. 1.0f].");
3650 }
3651 if (opacity < 1.0f) {
3652 GraphicsConfiguration gc = getGraphicsConfiguration();
3653 GraphicsDevice gd = gc.getDevice();
3654 if (gc.getDevice().getFullScreenWindow() == this) {
3655 throw new IllegalComponentStateException(
3656 "Setting opacity for full-screen window is not supported.");
3657 }
3658 if (!gd.isWindowTranslucencySupported(
3659 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3660 {
3661 throw new UnsupportedOperationException(
3662 "TRANSLUCENT translucency is not supported.");
3663 }
3664 }
3665 this.opacity = opacity;
3666 WindowPeer peer = (WindowPeer) this.peer;
3667 if (peer != null) {
3668 peer.setOpacity(opacity);
3669 }
3670 }
3671 }
3672
3673 /**
3674 * Returns the shape of the window.
3675 *
3676 * The value returned by this method may not be the same as
3677 * previously set with {@code setShape(shape)}, but it is guaranteed
3678 * to represent the same shape.
3679 *
3680 * @return the shape of the window or {@code null} if no
3681 * shape is specified for the window
3682 *
3683 * @see Window#setShape(Shape)
3684 * @see GraphicsDevice.WindowTranslucency
3685 *
3686 * @since 1.7
3687 */
3688 public Shape getShape() {
3689 synchronized (getTreeLock()) {
3690 return shape == null ? null : new Path2D.Float(shape);
3691 }
3692 }
3693
3694 /**
3695 * Sets the shape of the window.
3696 * <p>
3697 * Setting a shape cuts off some parts of the window. Only the parts that
3698 * belong to the given {@link Shape} remain visible and clickable. If
3699 * the shape argument is {@code null}, this method restores the default
3700 * shape, making the window rectangular on most platforms.
3701 * <p>
3702 * The following conditions must be met to set a non-null shape:
3703 * <ul>
3704 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3705 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3706 * underlying system
3707 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3708 * and {@link Dialog#setUndecorated})
3709 * <li>The window must not be in full-screen mode (see {@link
3710 * GraphicsDevice#setFullScreenWindow(Window)})
3711 * </ul>
3712 * <p>
3713 * If the requested shape is not {@code null}, and any of the above
3714 * conditions are not met, the shape of this window will not change,
3715 * and either the {@code UnsupportedOperationException} or {@code
3716 * IllegalComponentStateException} will be thrown.
3717 * <p>
3718 * The translucency levels of individual pixels may also be effected by the
3719 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3720 * opacity value (see {@link #setOpacity(float)}). See {@link
3721 * GraphicsDevice.WindowTranslucency} for more details.
3722 *
3723 * @param shape the shape to set to the window
3724 *
3725 * @throws IllegalComponentStateException if the shape is not {@code
3726 * null} and the window is decorated
3727 * @throws IllegalComponentStateException if the shape is not {@code
3728 * null} and the window is in full-screen mode
3729 * @throws UnsupportedOperationException if the shape is not {@code
3730 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3731 * PERPIXEL_TRANSPARENT} translucency is not supported
3732 *
3733 * @see Window#getShape()
3734 * @see Window#setBackground(Color)
3735 * @see Window#setOpacity(float)
3736 * @see Frame#isUndecorated
3737 * @see Dialog#isUndecorated
3738 * @see GraphicsDevice.WindowTranslucency
3739 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3740 *
3741 * @since 1.7
3742 */
3743 public void setShape(Shape shape) {
3744 synchronized (getTreeLock()) {
3745 if (shape != null) {
3746 GraphicsConfiguration gc = getGraphicsConfiguration();
3747 GraphicsDevice gd = gc.getDevice();
3748 if (gc.getDevice().getFullScreenWindow() == this) {
3749 throw new IllegalComponentStateException(
3750 "Setting shape for full-screen window is not supported.");
3751 }
3752 if (!gd.isWindowTranslucencySupported(
3753 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3754 {
3755 throw new UnsupportedOperationException(
3756 "PERPIXEL_TRANSPARENT translucency is not supported.");
3757 }
3758 }
3759 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3760 WindowPeer peer = (WindowPeer) this.peer;
3761 if (peer != null) {
3762 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3763 }
3764 }
3765 }
3766
3767 /**
3768 * Gets the background color of this window.
3769 * <p>
3770 * Note that the alpha component of the returned color indicates whether
3771 * the window is in the non-opaque (per-pixel translucent) mode.
3772 *
3773 * @return this component's background color
3774 *
3775 * @see Window#setBackground(Color)
3776 * @see Window#isOpaque
3777 * @see GraphicsDevice.WindowTranslucency
3778 */
3779 @Override
3780 public Color getBackground() {
3781 return super.getBackground();
3782 }
3783
3784 /**
3785 * Sets the background color of this window.
3786 * <p>
3787 * If the windowing system supports the {@link
3788 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3789 * translucency, the alpha component of the given background color
3790 * may effect the mode of operation for this window: it indicates whether
3791 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3792 * (alpha is less than {@code 1.0f}). If the given background color is
3793 * {@code null}, the window is considered completely opaque.
3794 * <p>
3795 * All the following conditions must be met to enable the per-pixel
3796 * transparency mode for this window:
3797 * <ul>
3798 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3799 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3800 * device where this window is located
3801 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3802 * and {@link Dialog#setUndecorated})
3803 * <li>The window must not be in full-screen mode (see {@link
3804 * GraphicsDevice#setFullScreenWindow(Window)})
3805 * </ul>
3806 * <p>
3807 * If the alpha component of the requested background color is less than
3808 * {@code 1.0f}, and any of the above conditions are not met, the background
3809 * color of this window will not change, the alpha component of the given
3810 * background color will not affect the mode of operation for this window,
3811 * and either the {@code UnsupportedOperationException} or {@code
3812 * IllegalComponentStateException} will be thrown.
3813 * <p>
3814 * When the window is per-pixel translucent, the drawing sub-system
3815 * respects the alpha value of each individual pixel. If a pixel gets
3816 * painted with the alpha color component equal to zero, it becomes
3817 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3818 * pixel is fully opaque. Interim values of the alpha color component make
3819 * the pixel semi-transparent. In this mode, the background of the window
3820 * gets painted with the alpha value of the given background color. If the
3821 * alpha value of the argument of this method is equal to {@code 0}, the
3822 * background is not painted at all.
3823 * <p>
3824 * The actual level of translucency of a given pixel also depends on window
3825 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3826 * this window (see {@link #setShape(Shape)}).
3827 * <p>
3828 * Note that painting a pixel with the alpha value of {@code 0} may or may
3829 * not disable the mouse event handling on this pixel. This is a
3830 * platform-dependent behavior. To make sure the mouse events do not get
3831 * dispatched to a particular pixel, the pixel must be excluded from the
3832 * shape of the window.
3833 * <p>
3834 * Enabling the per-pixel translucency mode may change the graphics
3835 * configuration of this window due to the native platform requirements.
3836 *
3837 * @param bgColor the color to become this window's background color.
3838 *
3839 * @throws IllegalComponentStateException if the alpha value of the given
3840 * background color is less than {@code 1.0f} and the window is decorated
3841 * @throws IllegalComponentStateException if the alpha value of the given
3842 * background color is less than {@code 1.0f} and the window is in
3843 * full-screen mode
3844 * @throws UnsupportedOperationException if the alpha value of the given
3845 * background color is less than {@code 1.0f} and {@link
3846 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3847 * PERPIXEL_TRANSLUCENT} translucency is not supported
3848 *
3849 * @see Window#getBackground
3850 * @see Window#isOpaque
3851 * @see Window#setOpacity(float)
3852 * @see Window#setShape(Shape)
3853 * @see Frame#isUndecorated
3854 * @see Dialog#isUndecorated
3855 * @see GraphicsDevice.WindowTranslucency
3856 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3857 * @see GraphicsConfiguration#isTranslucencyCapable()
3858 */
3859 @Override
3860 public void setBackground(Color bgColor) {
3861 Color oldBg = getBackground();
3862 super.setBackground(bgColor);
3863 if (oldBg != null && oldBg.equals(bgColor)) {
3864 return;
3865 }
3866 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3867 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3868 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3869 GraphicsConfiguration gc = getGraphicsConfiguration();
3870 GraphicsDevice gd = gc.getDevice();
3871 if (gc.getDevice().getFullScreenWindow() == this) {
3872 throw new IllegalComponentStateException(
3873 "Making full-screen window non opaque is not supported.");
3874 }
3875 if (!gc.isTranslucencyCapable()) {
3876 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3877 if (capableGC == null) {
3878 throw new UnsupportedOperationException(
3879 "PERPIXEL_TRANSLUCENT translucency is not supported");
3880 }
3881 setGraphicsConfiguration(capableGC);
3882 }
3883 setLayersOpaque(this, false);
3884 } else if ((oldAlpha < 255) && (alpha == 255)) {
3885 setLayersOpaque(this, true);
3886 }
3887 WindowPeer peer = (WindowPeer) this.peer;
3888 if (peer != null) {
3889 peer.setOpaque(alpha == 255);
3890 }
3891 }
3892
3893 /**
3894 * Indicates if the window is currently opaque.
3895 * <p>
3896 * The method returns {@code false} if the background color of the window
3897 * is not {@code null} and the alpha component of the color is less than
3898 * {@code 1.0f}. The method returns {@code true} otherwise.
3899 *
3900 * @return {@code true} if the window is opaque, {@code false} otherwise
3901 *
3902 * @see Window#getBackground
3903 * @see Window#setBackground(Color)
3904 * @since 1.7
3905 */
3906 @Override
3907 public boolean isOpaque() {
3908 Color bg = getBackground();
3909 return bg != null ? bg.getAlpha() == 255 : true;
3910 }
3911
3912 private void updateWindow() {
3913 synchronized (getTreeLock()) {
3914 WindowPeer peer = (WindowPeer) this.peer;
3915 if (peer != null) {
3916 peer.updateWindow();
3917 }
3918 }
3919 }
3920
3921 /**
3922 * {@inheritDoc}
3923 *
3924 * @since 1.7
3925 */
3926 @Override
3927 public void paint(Graphics g) {
3928 if (!isOpaque()) {
3929 Graphics gg = g.create();
3930 try {
3931 if (gg instanceof Graphics2D) {
3932 gg.setColor(getBackground());
3933 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3934 gg.fillRect(0, 0, getWidth(), getHeight());
3935 }
3936 } finally {
3937 gg.dispose();
3938 }
3939 }
3940 super.paint(g);
3941 }
3942
3943 private static void setLayersOpaque(Component component, boolean isOpaque) {
3944 // Shouldn't use instanceof to avoid loading Swing classes
3945 // if it's a pure AWT application.
3946 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3947 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3948 javax.swing.JRootPane root = rpc.getRootPane();
3949 javax.swing.JLayeredPane lp = root.getLayeredPane();
3950 Container c = root.getContentPane();
3951 javax.swing.JComponent content =
3952 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3953 lp.setOpaque(isOpaque);
3954 root.setOpaque(isOpaque);
3955 if (content != null) {
3956 content.setOpaque(isOpaque);
3957
3958 // Iterate down one level to see whether we have a JApplet
3959 // (which is also a RootPaneContainer) which requires processing
3960 int numChildren = content.getComponentCount();
3961 if (numChildren > 0) {
3962 Component child = content.getComponent(0);
3963 // It's OK to use instanceof here because we've
3964 // already loaded the RootPaneContainer class by now
3965 if (child instanceof javax.swing.RootPaneContainer) {
3966 setLayersOpaque(child, isOpaque);
3967 }
3968 }
3969 }
3970 }
3971 }
3972
3973
3974 // ************************** MIXING CODE *******************************
3975
3976 // A window has an owner, but it does NOT have a container
3977 @Override
3978 final Container getContainer() {
3979 return null;
3980 }
3981
3982 /**
3983 * Applies the shape to the component
3984 * @param shape Shape to be applied to the component
3985 */
3986 @Override
3987 final void applyCompoundShape(Region shape) {
3988 // The shape calculated by mixing code is not intended to be applied
3989 // to windows or frames
3990 }
3991
3992 @Override
3993 final void applyCurrentShape() {
3994 // The shape calculated by mixing code is not intended to be applied
3995 // to windows or frames
3996 }
3997
3998 @Override
3999 final void mixOnReshaping() {
4000 // The shape calculated by mixing code is not intended to be applied
4001 // to windows or frames
4002 }
4003
4004 @Override
4005 final Point getLocationOnWindow() {
4006 return new Point(0, 0);
4007 }
4008
4009 // ****************** END OF MIXING CODE ********************************
4010
4011 /**
4012 * Limit the given double value with the given range.
4013 */
4014 private static double limit(double value, double min, double max) {
4015 value = Math.max(value, min);
4016 value = Math.min(value, max);
4017 return value;
4018 }
4019
4020 /**
4021 * Calculate the position of the security warning.
4022 *
4023 * This method gets the window location/size as reported by the native
4024 * system since the locally cached values may represent outdated data.
4025 *
4026 * The method is used from the native code, or via AWTAccessor.
4027 *
4028 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4029 * supposed to become public/user-overridable.
4030 */
4031 private Point2D calculateSecurityWarningPosition(double x, double y,
4032 double w, double h)
4033 {
4034 // The position according to the spec of SecurityWarning.setPosition()
4035 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
4036 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
4037
4038 // First, make sure the warning is not too far from the window bounds
4039 wx = Window.limit(wx,
4040 x - securityWarningWidth - 2,
4041 x + w + 2);
4042 wy = Window.limit(wy,
4043 y - securityWarningHeight - 2,
4044 y + h + 2);
4045
4046 // Now make sure the warning window is visible on the screen
4047 GraphicsConfiguration graphicsConfig =
4048 getGraphicsConfiguration_NoClientCode();
4049 Rectangle screenBounds = graphicsConfig.getBounds();
4050 Insets screenInsets =
4051 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4052
4053 wx = Window.limit(wx,
4054 screenBounds.x + screenInsets.left,
4055 screenBounds.x + screenBounds.width - screenInsets.right
4056 - securityWarningWidth);
4057 wy = Window.limit(wy,
4058 screenBounds.y + screenInsets.top,
4059 screenBounds.y + screenBounds.height - screenInsets.bottom
4060 - securityWarningHeight);
4061
4062 return new Point2D.Double(wx, wy);
4063 }
4064
4065 static {
4066 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4067 public void updateWindow(Window window) {
4068 window.updateWindow();
4069 }
4070
4071 public Dimension getSecurityWarningSize(Window window) {
4072 return new Dimension(window.securityWarningWidth,
4073 window.securityWarningHeight);
4074 }
4075
4076 public void setSecurityWarningSize(Window window, int width, int height)
4077 {
4078 window.securityWarningWidth = width;
4079 window.securityWarningHeight = height;
4080 }
4081
4082 public void setSecurityWarningPosition(Window window,
4083 Point2D point, float alignmentX, float alignmentY)
4084 {
4085 window.securityWarningPointX = point.getX();
4086 window.securityWarningPointY = point.getY();
4087 window.securityWarningAlignmentX = alignmentX;
4088 window.securityWarningAlignmentY = alignmentY;
4089
4090 synchronized (window.getTreeLock()) {
4091 WindowPeer peer = (WindowPeer) window.peer;
4092 if (peer != null) {
4093 peer.repositionSecurityWarning();
4094 }
4095 }
4096 }
4097
4098 public Point2D calculateSecurityWarningPosition(Window window,
4099 double x, double y, double w, double h)
4100 {
4101 return window.calculateSecurityWarningPosition(x, y, w, h);
4102 }
4103
4104 public void setLWRequestStatus(Window changed, boolean status) {
4105 changed.syncLWRequests = status;
4106 }
4107
4108 public boolean isAutoRequestFocus(Window w) {
4109 return w.autoRequestFocus;
4110 }
4111
4112 public boolean isTrayIconWindow(Window w) {
4113 return w.isTrayIconWindow;
4114 }
4115
4116 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4117 w.isTrayIconWindow = isTrayIconWindow;
4118 }
4119
4120 public Window[] getOwnedWindows(Window w) {
4121 return w.getOwnedWindows_NoClientCode();
4122 }
4123 }); // WindowAccessor
4124 } // static
4125
4126 // a window doesn't need to be updated in the Z-order.
4127 @Override
4128 void updateZOrder() {}
4129
4130 } // class Window
4131
4132
4133 /**
4134 * This class is no longer used, but is maintained for Serialization
4135 * backward-compatibility.
4136 */
4137 class FocusManager implements java.io.Serializable {
4138 Container focusRoot;
4139 Component focusOwner;
4140
4141 /*
4142 * JDK 1.1 serialVersionUID
4143 */
4144 static final long serialVersionUID = 2491878825643557906L;
4145 }