1 /*
2 * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.awt;
26
27 import java.awt.event.*;
28 import java.awt.geom.Path2D;
29 import java.awt.geom.Point2D;
30 import java.awt.im.InputContext;
31 import java.awt.image.BufferStrategy;
32 import java.awt.image.BufferedImage;
33 import java.awt.peer.ComponentPeer;
34 import java.awt.peer.WindowPeer;
35 import java.beans.PropertyChangeListener;
36 import java.io.IOException;
37 import java.io.ObjectInputStream;
38 import java.io.ObjectOutputStream;
39 import java.io.OptionalDataException;
40 import java.io.Serializable;
41 import java.lang.ref.WeakReference;
42 import java.lang.reflect.InvocationTargetException;
43 import java.security.AccessController;
44 import java.util.ArrayList;
45 import java.util.Arrays;
46 import java.util.EventListener;
47 import java.util.Locale;
48 import java.util.ResourceBundle;
49 import java.util.Set;
50 import java.util.Vector;
51 import java.util.concurrent.atomic.AtomicBoolean;
52 import javax.accessibility.*;
53 import sun.awt.AWTAccessor;
54 import sun.awt.AWTPermissions;
55 import sun.awt.AppContext;
56 import sun.awt.CausedFocusEvent;
57 import sun.awt.SunToolkit;
58 import sun.awt.util.IdentityArrayList;
59 import sun.java2d.Disposer;
60 import sun.java2d.pipe.Region;
61 import sun.security.action.GetPropertyAction;
62 import sun.util.logging.PlatformLogger;
63
64 /**
65 * A {@code Window} object is a top-level window with no borders and no
66 * menubar.
67 * The default layout for a window is {@code BorderLayout}.
68 * <p>
69 * A window must have either a frame, dialog, or another window defined as its
70 * owner when it's constructed.
71 * <p>
72 * In a multi-screen environment, you can create a {@code Window}
73 * on a different screen device by constructing the {@code Window}
74 * with {@link #Window(Window, GraphicsConfiguration)}. The
75 * {@code GraphicsConfiguration} object is one of the
76 * {@code GraphicsConfiguration} objects of the target screen device.
77 * <p>
78 * In a virtual device multi-screen environment in which the desktop
79 * area could span multiple physical screen devices, the bounds of all
80 * configurations are relative to the virtual device coordinate system.
81 * The origin of the virtual-coordinate system is at the upper left-hand
82 * corner of the primary physical screen. Depending on the location of
83 * the primary screen in the virtual device, negative coordinates are
84 * possible, as shown in the following figure.
85 * <p>
86 * <img src="doc-files/MultiScreen.gif"
87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
88 * style="float:center; margin: 7px 10px;">
89 * <p>
90 * In such an environment, when calling {@code setLocation},
91 * you must pass a virtual coordinate to this method. Similarly,
92 * calling {@code getLocationOnScreen} on a {@code Window} returns
93 * virtual device coordinates. Call the {@code getBounds} method
94 * of a {@code GraphicsConfiguration} to find its origin in the virtual
95 * coordinate system.
96 * <p>
97 * The following code sets the location of a {@code Window}
98 * at (10, 10) relative to the origin of the physical screen
99 * of the corresponding {@code GraphicsConfiguration}. If the
100 * bounds of the {@code GraphicsConfiguration} is not taken
101 * into account, the {@code Window} location would be set
102 * at (10, 10) relative to the virtual-coordinate system and would appear
103 * on the primary physical screen, which might be different from the
104 * physical screen of the specified {@code GraphicsConfiguration}.
105 *
106 * <pre>
107 * Window w = new Window(Window owner, GraphicsConfiguration gc);
108 * Rectangle bounds = gc.getBounds();
109 * w.setLocation(10 + bounds.x, 10 + bounds.y);
110 * </pre>
111 *
112 * <p>
113 * Note: the location and size of top-level windows (including
114 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
115 * are under the control of the desktop's window management system.
116 * Calls to {@code setLocation}, {@code setSize}, and
117 * {@code setBounds} are requests (not directives) which are
118 * forwarded to the window management system. Every effort will be
119 * made to honor such requests. However, in some cases the window
120 * management system may ignore such requests, or modify the requested
121 * geometry in order to place and size the {@code Window} in a way
122 * that more closely matches the desktop settings.
123 * <p>
124 * Due to the asynchronous nature of native event handling, the results
125 * returned by {@code getBounds}, {@code getLocation},
126 * {@code getLocationOnScreen}, and {@code getSize} might not
127 * reflect the actual geometry of the Window on screen until the last
128 * request has been processed. During the processing of subsequent
129 * requests these values might change accordingly while the window
130 * management system fulfills the requests.
131 * <p>
132 * An application may set the size and location of an invisible
133 * {@code Window} arbitrarily, but the window management system may
134 * subsequently change its size and/or location when the
135 * {@code Window} is made visible. One or more {@code ComponentEvent}s
136 * will be generated to indicate the new geometry.
137 * <p>
138 * Windows are capable of generating the following WindowEvents:
139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
140 *
141 * @author Sami Shaio
142 * @author Arthur van Hoff
143 * @see WindowEvent
144 * @see #addWindowListener
145 * @see java.awt.BorderLayout
146 * @since JDK1.0
147 */
148 public class Window extends Container implements Accessible {
149
150 /**
151 * Enumeration of available <i>window types</i>.
152 *
153 * A window type defines the generic visual appearance and behavior of a
154 * top-level window. For example, the type may affect the kind of
155 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
156 * <p>
157 * Some platforms may not fully support a certain window type. Depending on
158 * the level of support, some properties of the window type may be
159 * disobeyed.
160 *
161 * @see #getType
162 * @see #setType
163 * @since 1.7
164 */
165 public static enum Type {
166 /**
167 * Represents a <i>normal</i> window.
168 *
169 * This is the default type for objects of the {@code Window} class or
170 * its descendants. Use this type for regular top-level windows.
171 */
172 NORMAL,
173
174 /**
175 * Represents a <i>utility</i> window.
176 *
177 * A utility window is usually a small window such as a toolbar or a
178 * palette. The native system may render the window with smaller
179 * title-bar if the window is either a {@code Frame} or a {@code
180 * Dialog} object, and if it has its decorations enabled.
181 */
182 UTILITY,
183
184 /**
185 * Represents a <i>popup</i> window.
186 *
187 * A popup window is a temporary window such as a drop-down menu or a
188 * tooltip. On some platforms, windows of that type may be forcibly
189 * made undecorated even if they are instances of the {@code Frame} or
190 * {@code Dialog} class, and have decorations enabled.
191 */
192 POPUP
193 }
194
195 /**
196 * This represents the warning message that is
197 * to be displayed in a non secure window. ie :
198 * a window that has a security manager installed that denies
199 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
200 * This message can be displayed anywhere in the window.
201 *
202 * @serial
203 * @see #getWarningString
204 */
205 String warningString;
206
207 /**
208 * {@code icons} is the graphical way we can
209 * represent the frames and dialogs.
210 * {@code Window} can't display icon but it's
211 * being inherited by owned {@code Dialog}s.
212 *
213 * @serial
214 * @see #getIconImages
215 * @see #setIconImages
216 */
217 transient java.util.List<Image> icons;
218
219 /**
220 * Holds the reference to the component which last had focus in this window
221 * before it lost focus.
222 */
223 private transient Component temporaryLostComponent;
224
225 static boolean systemSyncLWRequests = false;
226 boolean syncLWRequests = false;
227 transient boolean beforeFirstShow = true;
228 private transient boolean disposing = false;
229 transient WindowDisposerRecord disposerRecord = null;
230
231 static final int OPENED = 0x01;
232
233 /**
234 * An Integer value representing the Window State.
235 *
236 * @serial
237 * @since 1.2
238 * @see #show
239 */
240 int state;
241
242 /**
243 * A boolean value representing Window always-on-top state
244 * @since 1.5
245 * @serial
246 * @see #setAlwaysOnTop
247 * @see #isAlwaysOnTop
248 */
249 private boolean alwaysOnTop;
250
251 /**
252 * Contains all the windows that have a peer object associated,
253 * i. e. between addNotify() and removeNotify() calls. The list
254 * of all Window instances can be obtained from AppContext object.
255 *
256 * @since 1.6
257 */
258 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
259
260 /**
261 * A vector containing all the windows this
262 * window currently owns.
263 * @since 1.2
264 * @see #getOwnedWindows
265 */
266 transient Vector<WeakReference<Window>> ownedWindowList =
267 new Vector<WeakReference<Window>>();
268
269 /*
270 * We insert a weak reference into the Vector of all Windows in AppContext
271 * instead of 'this' so that garbage collection can still take place
272 * correctly.
273 */
274 private transient WeakReference<Window> weakThis;
275
276 transient boolean showWithParent;
277
278 /**
279 * Contains the modal dialog that blocks this window, or null
280 * if the window is unblocked.
281 *
282 * @since 1.6
283 */
284 transient Dialog modalBlocker;
285
286 /**
287 * @serial
288 *
289 * @see java.awt.Dialog.ModalExclusionType
290 * @see #getModalExclusionType
291 * @see #setModalExclusionType
292 *
293 * @since 1.6
294 */
295 Dialog.ModalExclusionType modalExclusionType;
296
297 transient WindowListener windowListener;
298 transient WindowStateListener windowStateListener;
299 transient WindowFocusListener windowFocusListener;
300
301 transient InputContext inputContext;
302 private transient Object inputContextLock = new Object();
303
304 /**
305 * Unused. Maintained for serialization backward-compatibility.
306 *
307 * @serial
308 * @since 1.2
309 */
310 private FocusManager focusMgr;
311
312 /**
313 * Indicates whether this Window can become the focused Window.
314 *
315 * @serial
316 * @see #getFocusableWindowState
317 * @see #setFocusableWindowState
318 * @since 1.4
319 */
320 private boolean focusableWindowState = true;
321
322 /**
323 * Indicates whether this window should receive focus on
324 * subsequently being shown (with a call to {@code setVisible(true)}), or
325 * being moved to the front (with a call to {@code toFront()}).
326 *
327 * @serial
328 * @see #setAutoRequestFocus
329 * @see #isAutoRequestFocus
330 * @since 1.7
331 */
332 private volatile boolean autoRequestFocus = true;
333
334 /*
335 * Indicates that this window is being shown. This flag is set to true at
336 * the beginning of show() and to false at the end of show().
337 *
338 * @see #show()
339 * @see Dialog#shouldBlock
340 */
341 transient boolean isInShow = false;
342
343 /**
344 * The opacity level of the window
345 *
346 * @serial
347 * @see #setOpacity(float)
348 * @see #getOpacity()
349 * @since 1.7
350 */
351 private float opacity = 1.0f;
352
353 /**
354 * The shape assigned to this window. This field is set to {@code null} if
355 * no shape is set (rectangular window).
356 *
357 * @serial
358 * @see #getShape()
359 * @see #setShape(Shape)
360 * @since 1.7
361 */
362 private Shape shape = null;
363
364 private static final String base = "win";
365 private static int nameCounter = 0;
366
367 /*
368 * JDK 1.1 serialVersionUID
369 */
370 private static final long serialVersionUID = 4497834738069338734L;
371
372 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
373
374 private static final boolean locationByPlatformProp;
375
376 transient boolean isTrayIconWindow = false;
377
378 /**
379 * These fields are initialized in the native peer code
380 * or via AWTAccessor's WindowAccessor.
381 */
382 private transient volatile int securityWarningWidth = 0;
383 private transient volatile int securityWarningHeight = 0;
384
385 /**
386 * These fields represent the desired location for the security
387 * warning if this window is untrusted.
388 * See com.sun.awt.SecurityWarning for more details.
389 */
390 private transient double securityWarningPointX = 2.0;
391 private transient double securityWarningPointY = 0.0;
392 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
393 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
394
395 static {
396 /* ensure that the necessary native libraries are loaded */
397 Toolkit.loadLibraries();
398 if (!GraphicsEnvironment.isHeadless()) {
399 initIDs();
400 }
401
402 String s = java.security.AccessController.doPrivileged(
403 new GetPropertyAction("java.awt.syncLWRequests"));
404 systemSyncLWRequests = (s != null && s.equals("true"));
405 s = java.security.AccessController.doPrivileged(
406 new GetPropertyAction("java.awt.Window.locationByPlatform"));
407 locationByPlatformProp = (s != null && s.equals("true"));
408 }
409
410 /**
411 * Initialize JNI field and method IDs for fields that may be
412 accessed from C.
413 */
414 private static native void initIDs();
415
416 /**
417 * Constructs a new, initially invisible window in default size with the
418 * specified {@code GraphicsConfiguration}.
419 * <p>
420 * If there is a security manager, then it is invoked to check
421 * {@code AWTPermission("showWindowWithoutWarningBanner")}
422 * to determine whether or not the window must be displayed with
423 * a warning banner.
424 *
425 * @param gc the {@code GraphicsConfiguration} of the target screen
426 * device. If {@code gc} is {@code null}, the system default
427 * {@code GraphicsConfiguration} is assumed
428 * @exception IllegalArgumentException if {@code gc}
429 * is not from a screen device
430 * @exception HeadlessException when
431 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
432 *
433 * @see java.awt.GraphicsEnvironment#isHeadless
434 */
435 Window(GraphicsConfiguration gc) {
436 init(gc);
437 }
438
439 transient Object anchor = new Object();
440 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
441 WeakReference<Window> owner;
442 final WeakReference<Window> weakThis;
443 final WeakReference<AppContext> context;
444
445 WindowDisposerRecord(AppContext context, Window victim) {
446 weakThis = victim.weakThis;
447 this.context = new WeakReference<AppContext>(context);
448 }
449
450 public void updateOwner() {
451 Window victim = weakThis.get();
452 owner = (victim == null)
453 ? null
454 : new WeakReference<Window>(victim.getOwner());
455 }
456
457 public void dispose() {
458 if (owner != null) {
459 Window parent = owner.get();
460 if (parent != null) {
461 parent.removeOwnedWindow(weakThis);
462 }
463 }
464 AppContext ac = context.get();
465 if (null != ac) {
466 Window.removeFromWindowList(ac, weakThis);
467 }
468 }
469 }
470
471 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
472 GraphicsEnvironment.checkHeadless();
473
474 if (gc == null) {
475 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
476 getDefaultScreenDevice().getDefaultConfiguration();
477 }
478 setGraphicsConfiguration(gc);
479
480 return gc;
481 }
482
483 private void init(GraphicsConfiguration gc) {
484 GraphicsEnvironment.checkHeadless();
485
486 syncLWRequests = systemSyncLWRequests;
487
488 weakThis = new WeakReference<Window>(this);
489 addToWindowList();
490
491 setWarningString();
492 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
493 this.visible = false;
494
495 gc = initGC(gc);
496
497 if (gc.getDevice().getType() !=
498 GraphicsDevice.TYPE_RASTER_SCREEN) {
499 throw new IllegalArgumentException("not a screen device");
500 }
501 setLayout(new BorderLayout());
502
503 /* offset the initial location with the original of the screen */
504 /* and any insets */
505 Rectangle screenBounds = gc.getBounds();
506 Insets screenInsets = getToolkit().getScreenInsets(gc);
507 int x = getX() + screenBounds.x + screenInsets.left;
508 int y = getY() + screenBounds.y + screenInsets.top;
509 if (x != this.x || y != this.y) {
510 setLocation(x, y);
511 /* reset after setLocation */
512 setLocationByPlatform(locationByPlatformProp);
513 }
514
515 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
516 disposerRecord = new WindowDisposerRecord(appContext, this);
517 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
518
519 SunToolkit.checkAndSetPolicy(this);
520 }
521
522 /**
523 * Constructs a new, initially invisible window in the default size.
524 * <p>
525 * If there is a security manager set, it is invoked to check
526 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
527 * If that check fails with a {@code SecurityException} then a warning
528 * banner is created.
529 *
530 * @exception HeadlessException when
531 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
532 *
533 * @see java.awt.GraphicsEnvironment#isHeadless
534 */
535 Window() throws HeadlessException {
536 GraphicsEnvironment.checkHeadless();
537 init((GraphicsConfiguration)null);
538 }
539
540 /**
541 * Constructs a new, initially invisible window with the specified
542 * {@code Frame} as its owner. The window will not be focusable
543 * unless its owner is showing on the screen.
544 * <p>
545 * If there is a security manager set, it is invoked to check
546 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
547 * If that check fails with a {@code SecurityException} then a warning
548 * banner is created.
549 *
550 * @param owner the {@code Frame} to act as owner or {@code null}
551 * if this window has no owner
552 * @exception IllegalArgumentException if the {@code owner}'s
553 * {@code GraphicsConfiguration} is not from a screen device
554 * @exception HeadlessException when
555 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
556 *
557 * @see java.awt.GraphicsEnvironment#isHeadless
558 * @see #isShowing
559 */
560 public Window(Frame owner) {
561 this(owner == null ? (GraphicsConfiguration)null :
562 owner.getGraphicsConfiguration());
563 ownedInit(owner);
564 }
565
566 /**
567 * Constructs a new, initially invisible window with the specified
568 * {@code Window} as its owner. This window will not be focusable
569 * unless its nearest owning {@code Frame} or {@code Dialog}
570 * is showing on the screen.
571 * <p>
572 * If there is a security manager set, it is invoked to check
573 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
574 * If that check fails with a {@code SecurityException} then a
575 * warning banner is created.
576 *
577 * @param owner the {@code Window} to act as owner or
578 * {@code null} if this window has no owner
579 * @exception IllegalArgumentException if the {@code owner}'s
580 * {@code GraphicsConfiguration} is not from a screen device
581 * @exception HeadlessException when
582 * {@code GraphicsEnvironment.isHeadless()} returns
583 * {@code true}
584 *
585 * @see java.awt.GraphicsEnvironment#isHeadless
586 * @see #isShowing
587 *
588 * @since 1.2
589 */
590 public Window(Window owner) {
591 this(owner == null ? (GraphicsConfiguration)null :
592 owner.getGraphicsConfiguration());
593 ownedInit(owner);
594 }
595
596 /**
597 * Constructs a new, initially invisible window with the specified owner
598 * {@code Window} and a {@code GraphicsConfiguration}
599 * of a screen device. The Window will not be focusable unless
600 * its nearest owning {@code Frame} or {@code Dialog}
601 * is showing on the screen.
602 * <p>
603 * If there is a security manager set, it is invoked to check
604 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
605 * check fails with a {@code SecurityException} then a warning banner
606 * is created.
607 *
608 * @param owner the window to act as owner or {@code null}
609 * if this window has no owner
610 * @param gc the {@code GraphicsConfiguration} of the target
611 * screen device; if {@code gc} is {@code null},
612 * the system default {@code GraphicsConfiguration} is assumed
613 * @exception IllegalArgumentException if {@code gc}
614 * is not from a screen device
615 * @exception HeadlessException when
616 * {@code GraphicsEnvironment.isHeadless()} returns
617 * {@code true}
618 *
619 * @see java.awt.GraphicsEnvironment#isHeadless
620 * @see GraphicsConfiguration#getBounds
621 * @see #isShowing
622 * @since 1.3
623 */
624 public Window(Window owner, GraphicsConfiguration gc) {
625 this(gc);
626 ownedInit(owner);
627 }
628
629 private void ownedInit(Window owner) {
630 this.parent = owner;
631 if (owner != null) {
632 owner.addOwnedWindow(weakThis);
633 if (owner.isAlwaysOnTop()) {
634 try {
635 setAlwaysOnTop(true);
636 } catch (SecurityException ignore) {
637 }
638 }
639 }
640
641 // WindowDisposerRecord requires a proper value of parent field.
642 disposerRecord.updateOwner();
643 }
644
645 /**
646 * Construct a name for this component. Called by getName() when the
647 * name is null.
648 */
649 String constructComponentName() {
650 synchronized (Window.class) {
651 return base + nameCounter++;
652 }
653 }
654
655 /**
656 * Returns the sequence of images to be displayed as the icon for this window.
657 * <p>
658 * This method returns a copy of the internally stored list, so all operations
659 * on the returned object will not affect the window's behavior.
660 *
661 * @return the copy of icon images' list for this window, or
662 * empty list if this window doesn't have icon images.
663 * @see #setIconImages
664 * @see #setIconImage(Image)
665 * @since 1.6
666 */
667 public java.util.List<Image> getIconImages() {
668 java.util.List<Image> icons = this.icons;
669 if (icons == null || icons.size() == 0) {
670 return new ArrayList<Image>();
671 }
672 return new ArrayList<Image>(icons);
673 }
674
675 /**
676 * Sets the sequence of images to be displayed as the icon
677 * for this window. Subsequent calls to {@code getIconImages} will
678 * always return a copy of the {@code icons} list.
679 * <p>
680 * Depending on the platform capabilities one or several images
681 * of different dimensions will be used as the window's icon.
682 * <p>
683 * The {@code icons} list is scanned for the images of most
684 * appropriate dimensions from the beginning. If the list contains
685 * several images of the same size, the first will be used.
686 * <p>
687 * Ownerless windows with no icon specified use platfrom-default icon.
688 * The icon of an owned window may be inherited from the owner
689 * unless explicitly overridden.
690 * Setting the icon to {@code null} or empty list restores
691 * the default behavior.
692 * <p>
693 * Note : Native windowing systems may use different images of differing
694 * dimensions to represent a window, depending on the context (e.g.
695 * window decoration, window list, taskbar, etc.). They could also use
696 * just a single image for all contexts or no image at all.
697 *
698 * @param icons the list of icon images to be displayed.
699 * @see #getIconImages()
700 * @see #setIconImage(Image)
701 * @since 1.6
702 */
703 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
704 this.icons = (icons == null) ? new ArrayList<Image>() :
705 new ArrayList<Image>(icons);
706 WindowPeer peer = (WindowPeer)this.peer;
707 if (peer != null) {
708 peer.updateIconImages();
709 }
710 // Always send a property change event
711 firePropertyChange("iconImage", null, null);
712 }
713
714 /**
715 * Sets the image to be displayed as the icon for this window.
716 * <p>
717 * This method can be used instead of {@link #setIconImages setIconImages()}
718 * to specify a single image as a window's icon.
719 * <p>
720 * The following statement:
721 * <pre>
722 * setIconImage(image);
723 * </pre>
724 * is equivalent to:
725 * <pre>
726 * ArrayList<Image> imageList = new ArrayList<Image>();
727 * imageList.add(image);
728 * setIconImages(imageList);
729 * </pre>
730 * <p>
731 * Note : Native windowing systems may use different images of differing
732 * dimensions to represent a window, depending on the context (e.g.
733 * window decoration, window list, taskbar, etc.). They could also use
734 * just a single image for all contexts or no image at all.
735 *
736 * @param image the icon image to be displayed.
737 * @see #setIconImages
738 * @see #getIconImages()
739 * @since 1.6
740 */
741 public void setIconImage(Image image) {
742 ArrayList<Image> imageList = new ArrayList<Image>();
743 if (image != null) {
744 imageList.add(image);
745 }
746 setIconImages(imageList);
747 }
748
749 /**
750 * Makes this Window displayable by creating the connection to its
751 * native screen resource.
752 * This method is called internally by the toolkit and should
753 * not be called directly by programs.
754 * @see Component#isDisplayable
755 * @see Container#removeNotify
756 * @since JDK1.0
757 */
758 public void addNotify() {
759 synchronized (getTreeLock()) {
760 Container parent = this.parent;
761 if (parent != null && parent.getPeer() == null) {
762 parent.addNotify();
763 }
764 if (peer == null) {
765 peer = getToolkit().createWindow(this);
766 }
767 synchronized (allWindows) {
768 allWindows.add(this);
769 }
770 super.addNotify();
771 }
772 }
773
774 /**
775 * {@inheritDoc}
776 */
777 public void removeNotify() {
778 synchronized (getTreeLock()) {
779 synchronized (allWindows) {
780 allWindows.remove(this);
781 }
782 super.removeNotify();
783 }
784 }
785
786 /**
787 * Causes this Window to be sized to fit the preferred size
788 * and layouts of its subcomponents. The resulting width and
789 * height of the window are automatically enlarged if either
790 * of dimensions is less than the minimum size as specified
791 * by the previous call to the {@code setMinimumSize} method.
792 * <p>
793 * If the window and/or its owner are not displayable yet,
794 * both of them are made displayable before calculating
795 * the preferred size. The Window is validated after its
796 * size is being calculated.
797 *
798 * @see Component#isDisplayable
799 * @see #setMinimumSize
800 */
801 public void pack() {
802 Container parent = this.parent;
803 if (parent != null && parent.getPeer() == null) {
804 parent.addNotify();
805 }
806 if (peer == null) {
807 addNotify();
808 }
809 Dimension newSize = getPreferredSize();
810 if (peer != null) {
811 setClientSize(newSize.width, newSize.height);
812 }
813
814 if(beforeFirstShow) {
815 isPacked = true;
816 }
817
818 validateUnconditionally();
819 }
820
821 /**
822 * Sets the minimum size of this window to a constant
823 * value. Subsequent calls to {@code getMinimumSize}
824 * will always return this value. If current window's
825 * size is less than {@code minimumSize} the size of the
826 * window is automatically enlarged to honor the minimum size.
827 * <p>
828 * If the {@code setSize} or {@code setBounds} methods
829 * are called afterwards with a width or height less than
830 * that was specified by the {@code setMinimumSize} method
831 * the window is automatically enlarged to meet
832 * the {@code minimumSize} value. The {@code minimumSize}
833 * value also affects the behaviour of the {@code pack} method.
834 * <p>
835 * The default behavior is restored by setting the minimum size
836 * parameter to the {@code null} value.
837 * <p>
838 * Resizing operation may be restricted if the user tries
839 * to resize window below the {@code minimumSize} value.
840 * This behaviour is platform-dependent.
841 *
842 * @param minimumSize the new minimum size of this window
843 * @see Component#setMinimumSize
844 * @see #getMinimumSize
845 * @see #isMinimumSizeSet
846 * @see #setSize(Dimension)
847 * @see #pack
848 * @since 1.6
849 */
850 public void setMinimumSize(Dimension minimumSize) {
851 synchronized (getTreeLock()) {
852 super.setMinimumSize(minimumSize);
853 Dimension size = getSize();
854 if (isMinimumSizeSet()) {
855 if (size.width < minimumSize.width || size.height < minimumSize.height) {
856 int nw = Math.max(width, minimumSize.width);
857 int nh = Math.max(height, minimumSize.height);
858 setSize(nw, nh);
859 }
860 }
861 if (peer != null) {
862 ((WindowPeer)peer).updateMinimumSize();
863 }
864 }
865 }
866
867 /**
868 * {@inheritDoc}
869 * <p>
870 * The {@code d.width} and {@code d.height} values
871 * are automatically enlarged if either is less than
872 * the minimum size as specified by previous call to
873 * {@code setMinimumSize}.
874 * <p>
875 * The method changes the geometry-related data. Therefore,
876 * the native windowing system may ignore such requests, or it may modify
877 * the requested data, so that the {@code Window} object is placed and sized
878 * in a way that corresponds closely to the desktop settings.
879 *
880 * @see #getSize
881 * @see #setBounds
882 * @see #setMinimumSize
883 * @since 1.6
884 */
885 public void setSize(Dimension d) {
886 super.setSize(d);
887 }
888
889 /**
890 * {@inheritDoc}
891 * <p>
892 * The {@code width} and {@code height} values
893 * are automatically enlarged if either is less than
894 * the minimum size as specified by previous call to
895 * {@code setMinimumSize}.
896 * <p>
897 * The method changes the geometry-related data. Therefore,
898 * the native windowing system may ignore such requests, or it may modify
899 * the requested data, so that the {@code Window} object is placed and sized
900 * in a way that corresponds closely to the desktop settings.
901 *
902 * @see #getSize
903 * @see #setBounds
904 * @see #setMinimumSize
905 * @since 1.6
906 */
907 public void setSize(int width, int height) {
908 super.setSize(width, height);
909 }
910
911 /**
912 * {@inheritDoc}
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 @Override
920 public void setLocation(int x, int y) {
921 super.setLocation(x, y);
922 }
923
924 /**
925 * {@inheritDoc}
926 * <p>
927 * The method changes the geometry-related data. Therefore,
928 * the native windowing system may ignore such requests, or it may modify
929 * the requested data, so that the {@code Window} object is placed and sized
930 * in a way that corresponds closely to the desktop settings.
931 */
932 @Override
933 public void setLocation(Point p) {
934 super.setLocation(p);
935 }
936
937 /**
938 * @deprecated As of JDK version 1.1,
939 * replaced by {@code setBounds(int, int, int, int)}.
940 */
941 @Deprecated
942 public void reshape(int x, int y, int width, int height) {
943 if (isMinimumSizeSet()) {
944 Dimension minSize = getMinimumSize();
945 if (width < minSize.width) {
946 width = minSize.width;
947 }
948 if (height < minSize.height) {
949 height = minSize.height;
950 }
951 }
952 super.reshape(x, y, width, height);
953 }
954
955 void setClientSize(int w, int h) {
956 synchronized (getTreeLock()) {
957 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
958 setBounds(x, y, w, h);
959 }
960 }
961
962 static private final AtomicBoolean
963 beforeFirstWindowShown = new AtomicBoolean(true);
964
965 final void closeSplashScreen() {
966 if (isTrayIconWindow) {
967 return;
968 }
969 if (beforeFirstWindowShown.getAndSet(false)) {
970 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
971 // the object if it hasn't been requested by user code explicitly
972 SunToolkit.closeSplashScreen();
973 SplashScreen.markClosed();
974 }
975 }
976
977 /**
978 * Shows or hides this {@code Window} depending on the value of parameter
979 * {@code b}.
980 * <p>
981 * If the method shows the window then the window is also made
982 * focused under the following conditions:
983 * <ul>
984 * <li> The {@code Window} meets the requirements outlined in the
985 * {@link #isFocusableWindow} method.
986 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
987 * <li> Native windowing system allows the {@code Window} to get focused.
988 * </ul>
989 * There is an exception for the second condition (the value of the
990 * {@code autoRequestFocus} property). The property is not taken into account if the
991 * window is a modal dialog, which blocks the currently focused window.
992 * <p>
993 * Developers must never assume that the window is the focused or active window
994 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
995 * @param b if {@code true}, makes the {@code Window} visible,
996 * otherwise hides the {@code Window}.
997 * If the {@code Window} and/or its owner
998 * are not yet displayable, both are made displayable. The
999 * {@code Window} will be validated prior to being made visible.
1000 * If the {@code Window} is already visible, this will bring the
1001 * {@code Window} to the front.<p>
1002 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1003 * of its owned children.
1004 * The {@code Window} and its subcomponents can be made visible again
1005 * with a call to {@code #setVisible(true)}.
1006 * @see java.awt.Component#isDisplayable
1007 * @see java.awt.Component#setVisible
1008 * @see java.awt.Window#toFront
1009 * @see java.awt.Window#dispose
1010 * @see java.awt.Window#setAutoRequestFocus
1011 * @see java.awt.Window#isFocusableWindow
1012 */
1013 public void setVisible(boolean b) {
1014 super.setVisible(b);
1015 }
1016
1017 /**
1018 * Makes the Window visible. If the Window and/or its owner
1019 * are not yet displayable, both are made displayable. The
1020 * Window will be validated prior to being made visible.
1021 * If the Window is already visible, this will bring the Window
1022 * to the front.
1023 * @see Component#isDisplayable
1024 * @see #toFront
1025 * @deprecated As of JDK version 1.5, replaced by
1026 * {@link #setVisible(boolean)}.
1027 */
1028 @Deprecated
1029 public void show() {
1030 if (peer == null) {
1031 addNotify();
1032 }
1033 validateUnconditionally();
1034
1035 isInShow = true;
1036 if (visible) {
1037 toFront();
1038 } else {
1039 beforeFirstShow = false;
1040 closeSplashScreen();
1041 Dialog.checkShouldBeBlocked(this);
1042 super.show();
1043 synchronized (getTreeLock()) {
1044 this.locationByPlatform = false;
1045 }
1046 for (int i = 0; i < ownedWindowList.size(); i++) {
1047 Window child = ownedWindowList.elementAt(i).get();
1048 if ((child != null) && child.showWithParent) {
1049 child.show();
1050 child.showWithParent = false;
1051 } // endif
1052 } // endfor
1053 if (!isModalBlocked()) {
1054 updateChildrenBlocking();
1055 } else {
1056 // fix for 6532736: after this window is shown, its blocker
1057 // should be raised to front
1058 modalBlocker.toFront_NoClientCode();
1059 }
1060 if (this instanceof Frame || this instanceof Dialog) {
1061 updateChildFocusableWindowState(this);
1062 }
1063 }
1064 isInShow = false;
1065
1066 // If first time shown, generate WindowOpened event
1067 if ((state & OPENED) == 0) {
1068 postWindowEvent(WindowEvent.WINDOW_OPENED);
1069 state |= OPENED;
1070 }
1071 }
1072
1073 static void updateChildFocusableWindowState(Window w) {
1074 if (w.getPeer() != null && w.isShowing()) {
1075 ((WindowPeer)w.getPeer()).updateFocusableWindowState();
1076 }
1077 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1078 Window child = w.ownedWindowList.elementAt(i).get();
1079 if (child != null) {
1080 updateChildFocusableWindowState(child);
1081 }
1082 }
1083 }
1084
1085 synchronized void postWindowEvent(int id) {
1086 if (windowListener != null
1087 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1088 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1089 WindowEvent e = new WindowEvent(this, id);
1090 Toolkit.getEventQueue().postEvent(e);
1091 }
1092 }
1093
1094 /**
1095 * Hide this Window, its subcomponents, and all of its owned children.
1096 * The Window and its subcomponents can be made visible again
1097 * with a call to {@code show}.
1098 * @see #show
1099 * @see #dispose
1100 * @deprecated As of JDK version 1.5, replaced by
1101 * {@link #setVisible(boolean)}.
1102 */
1103 @Deprecated
1104 public void hide() {
1105 synchronized(ownedWindowList) {
1106 for (int i = 0; i < ownedWindowList.size(); i++) {
1107 Window child = ownedWindowList.elementAt(i).get();
1108 if ((child != null) && child.visible) {
1109 child.hide();
1110 child.showWithParent = true;
1111 }
1112 }
1113 }
1114 if (isModalBlocked()) {
1115 modalBlocker.unblockWindow(this);
1116 }
1117 super.hide();
1118 synchronized (getTreeLock()) {
1119 this.locationByPlatform = false;
1120 }
1121 }
1122
1123 final void clearMostRecentFocusOwnerOnHide() {
1124 /* do nothing */
1125 }
1126
1127 /**
1128 * Releases all of the native screen resources used by this
1129 * {@code Window}, its subcomponents, and all of its owned
1130 * children. That is, the resources for these {@code Component}s
1131 * will be destroyed, any memory they consume will be returned to the
1132 * OS, and they will be marked as undisplayable.
1133 * <p>
1134 * The {@code Window} and its subcomponents can be made displayable
1135 * again by rebuilding the native resources with a subsequent call to
1136 * {@code pack} or {@code show}. The states of the recreated
1137 * {@code Window} and its subcomponents will be identical to the
1138 * states of these objects at the point where the {@code Window}
1139 * was disposed (not accounting for additional modifications between
1140 * those actions).
1141 * <p>
1142 * <b>Note</b>: When the last displayable window
1143 * within the Java virtual machine (VM) is disposed of, the VM may
1144 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1145 * AWT Threading Issues</a> for more information.
1146 * @see Component#isDisplayable
1147 * @see #pack
1148 * @see #show
1149 */
1150 public void dispose() {
1151 doDispose();
1152 }
1153
1154 /*
1155 * Fix for 4872170.
1156 * If dispose() is called on parent then its children have to be disposed as well
1157 * as reported in javadoc. So we need to implement this functionality even if a
1158 * child overrides dispose() in a wrong way without calling super.dispose().
1159 */
1160 void disposeImpl() {
1161 dispose();
1162 if (getPeer() != null) {
1163 doDispose();
1164 }
1165 }
1166
1167 void doDispose() {
1168 class DisposeAction implements Runnable {
1169 public void run() {
1170 disposing = true;
1171 try {
1172 // Check if this window is the fullscreen window for the
1173 // device. Exit the fullscreen mode prior to disposing
1174 // of the window if that's the case.
1175 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1176 if (gd.getFullScreenWindow() == Window.this) {
1177 gd.setFullScreenWindow(null);
1178 }
1179
1180 Object[] ownedWindowArray;
1181 synchronized(ownedWindowList) {
1182 ownedWindowArray = new Object[ownedWindowList.size()];
1183 ownedWindowList.copyInto(ownedWindowArray);
1184 }
1185 for (int i = 0; i < ownedWindowArray.length; i++) {
1186 Window child = (Window) (((WeakReference)
1187 (ownedWindowArray[i])).get());
1188 if (child != null) {
1189 child.disposeImpl();
1190 }
1191 }
1192 hide();
1193 beforeFirstShow = true;
1194 removeNotify();
1195 synchronized (inputContextLock) {
1196 if (inputContext != null) {
1197 inputContext.dispose();
1198 inputContext = null;
1199 }
1200 }
1201 clearCurrentFocusCycleRootOnHide();
1202 } finally {
1203 disposing = false;
1204 }
1205 }
1206 }
1207 boolean fireWindowClosedEvent = isDisplayable();
1208 DisposeAction action = new DisposeAction();
1209 if (EventQueue.isDispatchThread()) {
1210 action.run();
1211 }
1212 else {
1213 try {
1214 EventQueue.invokeAndWait(this, action);
1215 }
1216 catch (InterruptedException e) {
1217 System.err.println("Disposal was interrupted:");
1218 e.printStackTrace();
1219 }
1220 catch (InvocationTargetException e) {
1221 System.err.println("Exception during disposal:");
1222 e.printStackTrace();
1223 }
1224 }
1225 // Execute outside the Runnable because postWindowEvent is
1226 // synchronized on (this). We don't need to synchronize the call
1227 // on the EventQueue anyways.
1228 if (fireWindowClosedEvent) {
1229 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1230 }
1231 }
1232
1233 /*
1234 * Should only be called while holding the tree lock.
1235 * It's overridden here because parent == owner in Window,
1236 * and we shouldn't adjust counter on owner
1237 */
1238 void adjustListeningChildrenOnParent(long mask, int num) {
1239 }
1240
1241 // Should only be called while holding tree lock
1242 void adjustDecendantsOnParent(int num) {
1243 // do nothing since parent == owner and we shouldn't
1244 // ajust counter on owner
1245 }
1246
1247 /**
1248 * If this Window is visible, brings this Window to the front and may make
1249 * it the focused Window.
1250 * <p>
1251 * Places this Window at the top of the stacking order and shows it in
1252 * front of any other Windows in this VM. No action will take place if this
1253 * Window is not visible. Some platforms do not allow Windows which own
1254 * other Windows to appear on top of those owned Windows. Some platforms
1255 * may not permit this VM to place its Windows above windows of native
1256 * applications, or Windows of other VMs. This permission may depend on
1257 * whether a Window in this VM is already focused. Every attempt will be
1258 * made to move this Window as high as possible in the stacking order;
1259 * however, developers should not assume that this method will move this
1260 * Window above all other windows in every situation.
1261 * <p>
1262 * Developers must never assume that this Window is the focused or active
1263 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1264 * event. On platforms where the top-most window is the focused window, this
1265 * method will <b>probably</b> focus this Window (if it is not already focused)
1266 * under the following conditions:
1267 * <ul>
1268 * <li> The window meets the requirements outlined in the
1269 * {@link #isFocusableWindow} method.
1270 * <li> The window's property {@code autoRequestFocus} is of the
1271 * {@code true} value.
1272 * <li> Native windowing system allows the window to get focused.
1273 * </ul>
1274 * On platforms where the stacking order does not typically affect the focused
1275 * window, this method will <b>probably</b> leave the focused and active
1276 * Windows unchanged.
1277 * <p>
1278 * If this method causes this Window to be focused, and this Window is a
1279 * Frame or a Dialog, it will also become activated. If this Window is
1280 * focused, but it is not a Frame or a Dialog, then the first Frame or
1281 * Dialog that is an owner of this Window will be activated.
1282 * <p>
1283 * If this window is blocked by modal dialog, then the blocking dialog
1284 * is brought to the front and remains above the blocked window.
1285 *
1286 * @see #toBack
1287 * @see #setAutoRequestFocus
1288 * @see #isFocusableWindow
1289 */
1290 public void toFront() {
1291 toFront_NoClientCode();
1292 }
1293
1294 // This functionality is implemented in a final package-private method
1295 // to insure that it cannot be overridden by client subclasses.
1296 final void toFront_NoClientCode() {
1297 if (visible) {
1298 WindowPeer peer = (WindowPeer)this.peer;
1299 if (peer != null) {
1300 peer.toFront();
1301 }
1302 if (isModalBlocked()) {
1303 modalBlocker.toFront_NoClientCode();
1304 }
1305 }
1306 }
1307
1308 /**
1309 * If this Window is visible, sends this Window to the back and may cause
1310 * it to lose focus or activation if it is the focused or active Window.
1311 * <p>
1312 * Places this Window at the bottom of the stacking order and shows it
1313 * behind any other Windows in this VM. No action will take place is this
1314 * Window is not visible. Some platforms do not allow Windows which are
1315 * owned by other Windows to appear below their owners. Every attempt will
1316 * be made to move this Window as low as possible in the stacking order;
1317 * however, developers should not assume that this method will move this
1318 * Window below all other windows in every situation.
1319 * <p>
1320 * Because of variations in native windowing systems, no guarantees about
1321 * changes to the focused and active Windows can be made. Developers must
1322 * never assume that this Window is no longer the focused or active Window
1323 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1324 * event. On platforms where the top-most window is the focused window,
1325 * this method will <b>probably</b> cause this Window to lose focus. In
1326 * that case, the next highest, focusable Window in this VM will receive
1327 * focus. On platforms where the stacking order does not typically affect
1328 * the focused window, this method will <b>probably</b> leave the focused
1329 * and active Windows unchanged.
1330 *
1331 * @see #toFront
1332 */
1333 public void toBack() {
1334 toBack_NoClientCode();
1335 }
1336
1337 // This functionality is implemented in a final package-private method
1338 // to insure that it cannot be overridden by client subclasses.
1339 final void toBack_NoClientCode() {
1340 if(isAlwaysOnTop()) {
1341 try {
1342 setAlwaysOnTop(false);
1343 }catch(SecurityException e) {
1344 }
1345 }
1346 if (visible) {
1347 WindowPeer peer = (WindowPeer)this.peer;
1348 if (peer != null) {
1349 peer.toBack();
1350 }
1351 }
1352 }
1353
1354 /**
1355 * Returns the toolkit of this frame.
1356 * @return the toolkit of this window.
1357 * @see Toolkit
1358 * @see Toolkit#getDefaultToolkit
1359 * @see Component#getToolkit
1360 */
1361 public Toolkit getToolkit() {
1362 return Toolkit.getDefaultToolkit();
1363 }
1364
1365 /**
1366 * Gets the warning string that is displayed with this window.
1367 * If this window is insecure, the warning string is displayed
1368 * somewhere in the visible area of the window. A window is
1369 * insecure if there is a security manager and the security
1370 * manager denies
1371 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1372 * <p>
1373 * If the window is secure, then {@code getWarningString}
1374 * returns {@code null}. If the window is insecure, this
1375 * method checks for the system property
1376 * {@code awt.appletWarning}
1377 * and returns the string value of that property.
1378 * @return the warning string for this window.
1379 */
1380 public final String getWarningString() {
1381 return warningString;
1382 }
1383
1384 private void setWarningString() {
1385 warningString = null;
1386 SecurityManager sm = System.getSecurityManager();
1387 if (sm != null) {
1388 try {
1389 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1390 } catch (SecurityException se) {
1391 // make sure the privileged action is only
1392 // for getting the property! We don't want the
1393 // above checkPermission call to always succeed!
1394 warningString = AccessController.doPrivileged(
1395 new GetPropertyAction("awt.appletWarning",
1396 "Java Applet Window"));
1397 }
1398 }
1399 }
1400
1401 /**
1402 * Gets the {@code Locale} object that is associated
1403 * with this window, if the locale has been set.
1404 * If no locale has been set, then the default locale
1405 * is returned.
1406 * @return the locale that is set for this window.
1407 * @see java.util.Locale
1408 * @since JDK1.1
1409 */
1410 public Locale getLocale() {
1411 if (this.locale == null) {
1412 return Locale.getDefault();
1413 }
1414 return this.locale;
1415 }
1416
1417 /**
1418 * Gets the input context for this window. A window always has an input context,
1419 * which is shared by subcomponents unless they create and set their own.
1420 * @see Component#getInputContext
1421 * @since 1.2
1422 */
1423 public InputContext getInputContext() {
1424 synchronized (inputContextLock) {
1425 if (inputContext == null) {
1426 inputContext = InputContext.getInstance();
1427 }
1428 }
1429 return inputContext;
1430 }
1431
1432 /**
1433 * Set the cursor image to a specified cursor.
1434 * <p>
1435 * The method may have no visual effect if the Java platform
1436 * implementation and/or the native system do not support
1437 * changing the mouse cursor shape.
1438 * @param cursor One of the constants defined
1439 * by the {@code Cursor} class. If this parameter is null
1440 * then the cursor for this window will be set to the type
1441 * Cursor.DEFAULT_CURSOR.
1442 * @see Component#getCursor
1443 * @see Cursor
1444 * @since JDK1.1
1445 */
1446 public void setCursor(Cursor cursor) {
1447 if (cursor == null) {
1448 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1449 }
1450 super.setCursor(cursor);
1451 }
1452
1453 /**
1454 * Returns the owner of this window.
1455 * @since 1.2
1456 */
1457 public Window getOwner() {
1458 return getOwner_NoClientCode();
1459 }
1460 final Window getOwner_NoClientCode() {
1461 return (Window)parent;
1462 }
1463
1464 /**
1465 * Return an array containing all the windows this
1466 * window currently owns.
1467 * @since 1.2
1468 */
1469 public Window[] getOwnedWindows() {
1470 return getOwnedWindows_NoClientCode();
1471 }
1472 final Window[] getOwnedWindows_NoClientCode() {
1473 Window realCopy[];
1474
1475 synchronized(ownedWindowList) {
1476 // Recall that ownedWindowList is actually a Vector of
1477 // WeakReferences and calling get() on one of these references
1478 // may return null. Make two arrays-- one the size of the
1479 // Vector (fullCopy with size fullSize), and one the size of
1480 // all non-null get()s (realCopy with size realSize).
1481 int fullSize = ownedWindowList.size();
1482 int realSize = 0;
1483 Window fullCopy[] = new Window[fullSize];
1484
1485 for (int i = 0; i < fullSize; i++) {
1486 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1487
1488 if (fullCopy[realSize] != null) {
1489 realSize++;
1490 }
1491 }
1492
1493 if (fullSize != realSize) {
1494 realCopy = Arrays.copyOf(fullCopy, realSize);
1495 } else {
1496 realCopy = fullCopy;
1497 }
1498 }
1499
1500 return realCopy;
1501 }
1502
1503 boolean isModalBlocked() {
1504 return modalBlocker != null;
1505 }
1506
1507 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1508 this.modalBlocker = blocked ? blocker : null;
1509 if (peerCall) {
1510 WindowPeer peer = (WindowPeer)this.peer;
1511 if (peer != null) {
1512 peer.setModalBlocked(blocker, blocked);
1513 }
1514 }
1515 }
1516
1517 Dialog getModalBlocker() {
1518 return modalBlocker;
1519 }
1520
1521 /*
1522 * Returns a list of all displayable Windows, i. e. all the
1523 * Windows which peer is not null.
1524 *
1525 * @see #addNotify
1526 * @see #removeNotify
1527 */
1528 static IdentityArrayList<Window> getAllWindows() {
1529 synchronized (allWindows) {
1530 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1531 v.addAll(allWindows);
1532 return v;
1533 }
1534 }
1535
1536 static IdentityArrayList<Window> getAllUnblockedWindows() {
1537 synchronized (allWindows) {
1538 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1539 for (int i = 0; i < allWindows.size(); i++) {
1540 Window w = allWindows.get(i);
1541 if (!w.isModalBlocked()) {
1542 unblocked.add(w);
1543 }
1544 }
1545 return unblocked;
1546 }
1547 }
1548
1549 private static Window[] getWindows(AppContext appContext) {
1550 synchronized (Window.class) {
1551 Window realCopy[];
1552 @SuppressWarnings("unchecked")
1553 Vector<WeakReference<Window>> windowList =
1554 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1555 if (windowList != null) {
1556 int fullSize = windowList.size();
1557 int realSize = 0;
1558 Window fullCopy[] = new Window[fullSize];
1559 for (int i = 0; i < fullSize; i++) {
1560 Window w = windowList.get(i).get();
1561 if (w != null) {
1562 fullCopy[realSize++] = w;
1563 }
1564 }
1565 if (fullSize != realSize) {
1566 realCopy = Arrays.copyOf(fullCopy, realSize);
1567 } else {
1568 realCopy = fullCopy;
1569 }
1570 } else {
1571 realCopy = new Window[0];
1572 }
1573 return realCopy;
1574 }
1575 }
1576
1577 /**
1578 * Returns an array of all {@code Window}s, both owned and ownerless,
1579 * created by this application.
1580 * If called from an applet, the array includes only the {@code Window}s
1581 * accessible by that applet.
1582 * <p>
1583 * <b>Warning:</b> this method may return system created windows, such
1584 * as a print dialog. Applications should not assume the existence of
1585 * these dialogs, nor should an application assume anything about these
1586 * dialogs such as component positions, {@code LayoutManager}s
1587 * or serialization.
1588 *
1589 * @see Frame#getFrames
1590 * @see Window#getOwnerlessWindows
1591 *
1592 * @since 1.6
1593 */
1594 public static Window[] getWindows() {
1595 return getWindows(AppContext.getAppContext());
1596 }
1597
1598 /**
1599 * Returns an array of all {@code Window}s created by this application
1600 * that have no owner. They include {@code Frame}s and ownerless
1601 * {@code Dialog}s and {@code Window}s.
1602 * If called from an applet, the array includes only the {@code Window}s
1603 * accessible by that applet.
1604 * <p>
1605 * <b>Warning:</b> this method may return system created windows, such
1606 * as a print dialog. Applications should not assume the existence of
1607 * these dialogs, nor should an application assume anything about these
1608 * dialogs such as component positions, {@code LayoutManager}s
1609 * or serialization.
1610 *
1611 * @see Frame#getFrames
1612 * @see Window#getWindows()
1613 *
1614 * @since 1.6
1615 */
1616 public static Window[] getOwnerlessWindows() {
1617 Window[] allWindows = Window.getWindows();
1618
1619 int ownerlessCount = 0;
1620 for (Window w : allWindows) {
1621 if (w.getOwner() == null) {
1622 ownerlessCount++;
1623 }
1624 }
1625
1626 Window[] ownerless = new Window[ownerlessCount];
1627 int c = 0;
1628 for (Window w : allWindows) {
1629 if (w.getOwner() == null) {
1630 ownerless[c++] = w;
1631 }
1632 }
1633
1634 return ownerless;
1635 }
1636
1637 Window getDocumentRoot() {
1638 synchronized (getTreeLock()) {
1639 Window w = this;
1640 while (w.getOwner() != null) {
1641 w = w.getOwner();
1642 }
1643 return w;
1644 }
1645 }
1646
1647 /**
1648 * Specifies the modal exclusion type for this window. If a window is modal
1649 * excluded, it is not blocked by some modal dialogs. See {@link
1650 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1651 * possible modal exclusion types.
1652 * <p>
1653 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1654 * <p>
1655 * Note: changing the modal exclusion type for a visible window may have no
1656 * effect until it is hidden and then shown again.
1657 *
1658 * @param exclusionType the modal exclusion type for this window; a {@code null}
1659 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1660 * NO_EXCLUDE}
1661 * @throws SecurityException if the calling thread does not have permission
1662 * to set the modal exclusion property to the window with the given
1663 * {@code exclusionType}
1664 * @see java.awt.Dialog.ModalExclusionType
1665 * @see java.awt.Window#getModalExclusionType
1666 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1667 *
1668 * @since 1.6
1669 */
1670 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1671 if (exclusionType == null) {
1672 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1673 }
1674 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1675 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1676 }
1677 if (modalExclusionType == exclusionType) {
1678 return;
1679 }
1680 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1681 SecurityManager sm = System.getSecurityManager();
1682 if (sm != null) {
1683 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1684 }
1685 }
1686 modalExclusionType = exclusionType;
1687
1688 // if we want on-fly changes, we need to uncomment the lines below
1689 // and override the method in Dialog to use modalShow() instead
1690 // of updateChildrenBlocking()
1691 /*
1692 if (isModalBlocked()) {
1693 modalBlocker.unblockWindow(this);
1694 }
1695 Dialog.checkShouldBeBlocked(this);
1696 updateChildrenBlocking();
1697 */
1698 }
1699
1700 /**
1701 * Returns the modal exclusion type of this window.
1702 *
1703 * @return the modal exclusion type of this window
1704 *
1705 * @see java.awt.Dialog.ModalExclusionType
1706 * @see java.awt.Window#setModalExclusionType
1707 *
1708 * @since 1.6
1709 */
1710 public Dialog.ModalExclusionType getModalExclusionType() {
1711 return modalExclusionType;
1712 }
1713
1714 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1715 if ((modalExclusionType != null) &&
1716 modalExclusionType.compareTo(exclusionType) >= 0)
1717 {
1718 return true;
1719 }
1720 Window owner = getOwner_NoClientCode();
1721 return (owner != null) && owner.isModalExcluded(exclusionType);
1722 }
1723
1724 void updateChildrenBlocking() {
1725 Vector<Window> childHierarchy = new Vector<Window>();
1726 Window[] ownedWindows = getOwnedWindows();
1727 for (int i = 0; i < ownedWindows.length; i++) {
1728 childHierarchy.add(ownedWindows[i]);
1729 }
1730 int k = 0;
1731 while (k < childHierarchy.size()) {
1732 Window w = childHierarchy.get(k);
1733 if (w.isVisible()) {
1734 if (w.isModalBlocked()) {
1735 Dialog blocker = w.getModalBlocker();
1736 blocker.unblockWindow(w);
1737 }
1738 Dialog.checkShouldBeBlocked(w);
1739 Window[] wOwned = w.getOwnedWindows();
1740 for (int j = 0; j < wOwned.length; j++) {
1741 childHierarchy.add(wOwned[j]);
1742 }
1743 }
1744 k++;
1745 }
1746 }
1747
1748 /**
1749 * Adds the specified window listener to receive window events from
1750 * this window.
1751 * If l is null, no exception is thrown and no action is performed.
1752 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1753 * >AWT Threading Issues</a> for details on AWT's threading model.
1754 *
1755 * @param l the window listener
1756 * @see #removeWindowListener
1757 * @see #getWindowListeners
1758 */
1759 public synchronized void addWindowListener(WindowListener l) {
1760 if (l == null) {
1761 return;
1762 }
1763 newEventsOnly = true;
1764 windowListener = AWTEventMulticaster.add(windowListener, l);
1765 }
1766
1767 /**
1768 * Adds the specified window state listener to receive window
1769 * events from this window. If {@code l} is {@code null},
1770 * no exception is thrown and no action is performed.
1771 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1772 * >AWT Threading Issues</a> for details on AWT's threading model.
1773 *
1774 * @param l the window state listener
1775 * @see #removeWindowStateListener
1776 * @see #getWindowStateListeners
1777 * @since 1.4
1778 */
1779 public synchronized void addWindowStateListener(WindowStateListener l) {
1780 if (l == null) {
1781 return;
1782 }
1783 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1784 newEventsOnly = true;
1785 }
1786
1787 /**
1788 * Adds the specified window focus listener to receive window events
1789 * from this window.
1790 * If l is null, 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 focus listener
1795 * @see #removeWindowFocusListener
1796 * @see #getWindowFocusListeners
1797 * @since 1.4
1798 */
1799 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1800 if (l == null) {
1801 return;
1802 }
1803 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1804 newEventsOnly = true;
1805 }
1806
1807 /**
1808 * Removes the specified window listener so that it no longer
1809 * receives window events 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 listener
1815 * @see #addWindowListener
1816 * @see #getWindowListeners
1817 */
1818 public synchronized void removeWindowListener(WindowListener l) {
1819 if (l == null) {
1820 return;
1821 }
1822 windowListener = AWTEventMulticaster.remove(windowListener, l);
1823 }
1824
1825 /**
1826 * Removes the specified window state listener so that it no
1827 * longer receives window events from this window. If
1828 * {@code l} is {@code null}, no exception is thrown and
1829 * no action is performed.
1830 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1831 * >AWT Threading Issues</a> for details on AWT's threading model.
1832 *
1833 * @param l the window state listener
1834 * @see #addWindowStateListener
1835 * @see #getWindowStateListeners
1836 * @since 1.4
1837 */
1838 public synchronized void removeWindowStateListener(WindowStateListener l) {
1839 if (l == null) {
1840 return;
1841 }
1842 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1843 }
1844
1845 /**
1846 * Removes the specified window focus listener so that it no longer
1847 * receives window events from this window.
1848 * If l is null, no exception is thrown and no action is performed.
1849 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1850 * >AWT Threading Issues</a> for details on AWT's threading model.
1851 *
1852 * @param l the window focus listener
1853 * @see #addWindowFocusListener
1854 * @see #getWindowFocusListeners
1855 * @since 1.4
1856 */
1857 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1858 if (l == null) {
1859 return;
1860 }
1861 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1862 }
1863
1864 /**
1865 * Returns an array of all the window listeners
1866 * registered on this window.
1867 *
1868 * @return all of this window's {@code WindowListener}s
1869 * or an empty array if no window
1870 * listeners are currently registered
1871 *
1872 * @see #addWindowListener
1873 * @see #removeWindowListener
1874 * @since 1.4
1875 */
1876 public synchronized WindowListener[] getWindowListeners() {
1877 return getListeners(WindowListener.class);
1878 }
1879
1880 /**
1881 * Returns an array of all the window focus listeners
1882 * registered on this window.
1883 *
1884 * @return all of this window's {@code WindowFocusListener}s
1885 * or an empty array if no window focus
1886 * listeners are currently registered
1887 *
1888 * @see #addWindowFocusListener
1889 * @see #removeWindowFocusListener
1890 * @since 1.4
1891 */
1892 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1893 return getListeners(WindowFocusListener.class);
1894 }
1895
1896 /**
1897 * Returns an array of all the window state listeners
1898 * registered on this window.
1899 *
1900 * @return all of this window's {@code WindowStateListener}s
1901 * or an empty array if no window state
1902 * listeners are currently registered
1903 *
1904 * @see #addWindowStateListener
1905 * @see #removeWindowStateListener
1906 * @since 1.4
1907 */
1908 public synchronized WindowStateListener[] getWindowStateListeners() {
1909 return getListeners(WindowStateListener.class);
1910 }
1911
1912
1913 /**
1914 * Returns an array of all the objects currently registered
1915 * as <code><em>Foo</em>Listener</code>s
1916 * upon this {@code Window}.
1917 * <code><em>Foo</em>Listener</code>s are registered using the
1918 * <code>add<em>Foo</em>Listener</code> method.
1919 *
1920 * <p>
1921 *
1922 * You can specify the {@code listenerType} argument
1923 * with a class literal, such as
1924 * <code><em>Foo</em>Listener.class</code>.
1925 * For example, you can query a
1926 * {@code Window} {@code w}
1927 * for its window listeners with the following code:
1928 *
1929 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1930 *
1931 * If no such listeners exist, this method returns an empty array.
1932 *
1933 * @param listenerType the type of listeners requested; this parameter
1934 * should specify an interface that descends from
1935 * {@code java.util.EventListener}
1936 * @return an array of all objects registered as
1937 * <code><em>Foo</em>Listener</code>s on this window,
1938 * or an empty array if no such
1939 * listeners have been added
1940 * @exception ClassCastException if {@code listenerType}
1941 * doesn't specify a class or interface that implements
1942 * {@code java.util.EventListener}
1943 * @exception NullPointerException if {@code listenerType} is {@code null}
1944 *
1945 * @see #getWindowListeners
1946 * @since 1.3
1947 */
1948 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1949 EventListener l = null;
1950 if (listenerType == WindowFocusListener.class) {
1951 l = windowFocusListener;
1952 } else if (listenerType == WindowStateListener.class) {
1953 l = windowStateListener;
1954 } else if (listenerType == WindowListener.class) {
1955 l = windowListener;
1956 } else {
1957 return super.getListeners(listenerType);
1958 }
1959 return AWTEventMulticaster.getListeners(l, listenerType);
1960 }
1961
1962 // REMIND: remove when filtering is handled at lower level
1963 boolean eventEnabled(AWTEvent e) {
1964 switch(e.id) {
1965 case WindowEvent.WINDOW_OPENED:
1966 case WindowEvent.WINDOW_CLOSING:
1967 case WindowEvent.WINDOW_CLOSED:
1968 case WindowEvent.WINDOW_ICONIFIED:
1969 case WindowEvent.WINDOW_DEICONIFIED:
1970 case WindowEvent.WINDOW_ACTIVATED:
1971 case WindowEvent.WINDOW_DEACTIVATED:
1972 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1973 windowListener != null) {
1974 return true;
1975 }
1976 return false;
1977 case WindowEvent.WINDOW_GAINED_FOCUS:
1978 case WindowEvent.WINDOW_LOST_FOCUS:
1979 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1980 windowFocusListener != null) {
1981 return true;
1982 }
1983 return false;
1984 case WindowEvent.WINDOW_STATE_CHANGED:
1985 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1986 windowStateListener != null) {
1987 return true;
1988 }
1989 return false;
1990 default:
1991 break;
1992 }
1993 return super.eventEnabled(e);
1994 }
1995
1996 /**
1997 * Processes events on this window. If the event is an
1998 * {@code WindowEvent}, it invokes the
1999 * {@code processWindowEvent} method, else it invokes its
2000 * superclass's {@code processEvent}.
2001 * <p>Note that if the event parameter is {@code null}
2002 * the behavior is unspecified and may result in an
2003 * exception.
2004 *
2005 * @param e the event
2006 */
2007 protected void processEvent(AWTEvent e) {
2008 if (e instanceof WindowEvent) {
2009 switch (e.getID()) {
2010 case WindowEvent.WINDOW_OPENED:
2011 case WindowEvent.WINDOW_CLOSING:
2012 case WindowEvent.WINDOW_CLOSED:
2013 case WindowEvent.WINDOW_ICONIFIED:
2014 case WindowEvent.WINDOW_DEICONIFIED:
2015 case WindowEvent.WINDOW_ACTIVATED:
2016 case WindowEvent.WINDOW_DEACTIVATED:
2017 processWindowEvent((WindowEvent)e);
2018 break;
2019 case WindowEvent.WINDOW_GAINED_FOCUS:
2020 case WindowEvent.WINDOW_LOST_FOCUS:
2021 processWindowFocusEvent((WindowEvent)e);
2022 break;
2023 case WindowEvent.WINDOW_STATE_CHANGED:
2024 processWindowStateEvent((WindowEvent)e);
2025 break;
2026 }
2027 return;
2028 }
2029 super.processEvent(e);
2030 }
2031
2032 /**
2033 * Processes window events occurring on this window by
2034 * dispatching them to any registered WindowListener objects.
2035 * NOTE: This method will not be called unless window events
2036 * are enabled for this component; this happens when one of the
2037 * following occurs:
2038 * <ul>
2039 * <li>A WindowListener object is registered via
2040 * {@code addWindowListener}
2041 * <li>Window events are enabled via {@code enableEvents}
2042 * </ul>
2043 * <p>Note that if the event parameter is {@code null}
2044 * the behavior is unspecified and may result in an
2045 * exception.
2046 *
2047 * @param e the window event
2048 * @see Component#enableEvents
2049 */
2050 protected void processWindowEvent(WindowEvent e) {
2051 WindowListener listener = windowListener;
2052 if (listener != null) {
2053 switch(e.getID()) {
2054 case WindowEvent.WINDOW_OPENED:
2055 listener.windowOpened(e);
2056 break;
2057 case WindowEvent.WINDOW_CLOSING:
2058 listener.windowClosing(e);
2059 break;
2060 case WindowEvent.WINDOW_CLOSED:
2061 listener.windowClosed(e);
2062 break;
2063 case WindowEvent.WINDOW_ICONIFIED:
2064 listener.windowIconified(e);
2065 break;
2066 case WindowEvent.WINDOW_DEICONIFIED:
2067 listener.windowDeiconified(e);
2068 break;
2069 case WindowEvent.WINDOW_ACTIVATED:
2070 listener.windowActivated(e);
2071 break;
2072 case WindowEvent.WINDOW_DEACTIVATED:
2073 listener.windowDeactivated(e);
2074 break;
2075 default:
2076 break;
2077 }
2078 }
2079 }
2080
2081 /**
2082 * Processes window focus event occurring on this window by
2083 * dispatching them to any registered WindowFocusListener objects.
2084 * NOTE: this method will not be called unless window focus events
2085 * are enabled for this window. This happens when one of the
2086 * following occurs:
2087 * <ul>
2088 * <li>a WindowFocusListener is registered via
2089 * {@code addWindowFocusListener}
2090 * <li>Window focus events are enabled via {@code enableEvents}
2091 * </ul>
2092 * <p>Note that if the event parameter is {@code null}
2093 * the behavior is unspecified and may result in an
2094 * exception.
2095 *
2096 * @param e the window focus event
2097 * @see Component#enableEvents
2098 * @since 1.4
2099 */
2100 protected void processWindowFocusEvent(WindowEvent e) {
2101 WindowFocusListener listener = windowFocusListener;
2102 if (listener != null) {
2103 switch (e.getID()) {
2104 case WindowEvent.WINDOW_GAINED_FOCUS:
2105 listener.windowGainedFocus(e);
2106 break;
2107 case WindowEvent.WINDOW_LOST_FOCUS:
2108 listener.windowLostFocus(e);
2109 break;
2110 default:
2111 break;
2112 }
2113 }
2114 }
2115
2116 /**
2117 * Processes window state event occurring on this window by
2118 * dispatching them to any registered {@code WindowStateListener}
2119 * objects.
2120 * NOTE: this method will not be called unless window state events
2121 * are enabled for this window. This happens when one of the
2122 * following occurs:
2123 * <ul>
2124 * <li>a {@code WindowStateListener} is registered via
2125 * {@code addWindowStateListener}
2126 * <li>window state events are enabled via {@code enableEvents}
2127 * </ul>
2128 * <p>Note that if the event parameter is {@code null}
2129 * the behavior is unspecified and may result in an
2130 * exception.
2131 *
2132 * @param e the window state event
2133 * @see java.awt.Component#enableEvents
2134 * @since 1.4
2135 */
2136 protected void processWindowStateEvent(WindowEvent e) {
2137 WindowStateListener listener = windowStateListener;
2138 if (listener != null) {
2139 switch (e.getID()) {
2140 case WindowEvent.WINDOW_STATE_CHANGED:
2141 listener.windowStateChanged(e);
2142 break;
2143 default:
2144 break;
2145 }
2146 }
2147 }
2148
2149 /**
2150 * Implements a debugging hook -- checks to see if
2151 * the user has typed <i>control-shift-F1</i>. If so,
2152 * the list of child windows is dumped to {@code System.out}.
2153 * @param e the keyboard event
2154 */
2155 void preProcessKeyEvent(KeyEvent e) {
2156 // Dump the list of child windows to System.out.
2157 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2158 e.isControlDown() && e.isShiftDown() &&
2159 e.getID() == KeyEvent.KEY_PRESSED) {
2160 list(System.out, 0);
2161 }
2162 }
2163
2164 void postProcessKeyEvent(KeyEvent e) {
2165 // Do nothing
2166 }
2167
2168
2169 /**
2170 * Sets whether this window should always be above other windows. If
2171 * there are multiple always-on-top windows, their relative order is
2172 * unspecified and platform dependent.
2173 * <p>
2174 * If some other window is already always-on-top then the
2175 * relative order between these windows is unspecified (depends on
2176 * platform). No window can be brought to be over the always-on-top
2177 * window except maybe another always-on-top window.
2178 * <p>
2179 * All windows owned by an always-on-top window inherit this state and
2180 * automatically become always-on-top. If a window ceases to be
2181 * always-on-top, the windows that it owns will no longer be
2182 * always-on-top. When an always-on-top window is sent {@link #toBack
2183 * toBack}, its always-on-top state is set to {@code false}.
2184 *
2185 * <p> When this method is called on a window with a value of
2186 * {@code true}, and the window is visible and the platform
2187 * supports always-on-top for this window, the window is immediately
2188 * brought forward, "sticking" it in the top-most position. If the
2189 * window isn`t currently visible, this method sets the always-on-top
2190 * state to {@code true} but does not bring the window forward.
2191 * When the window is later shown, it will be always-on-top.
2192 *
2193 * <p> When this method is called on a window with a value of
2194 * {@code false} the always-on-top state is set to normal. It may also
2195 * cause an unspecified, platform-dependent change in the z-order of
2196 * top-level windows, but other always-on-top windows will remain in
2197 * top-most position. Calling this method with a value of {@code false}
2198 * on a window that has a normal state has no effect.
2199 *
2200 * <p><b>Note</b>: some platforms might not support always-on-top
2201 * windows. To detect if always-on-top windows are supported by the
2202 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2203 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2204 * isn't supported for this window or this window's toolkit does not
2205 * support always-on-top windows, calling this method has no effect.
2206 * <p>
2207 * If a SecurityManager is installed, the calling thread must be
2208 * granted the AWTPermission "setWindowAlwaysOnTop" in
2209 * order to set the value of this property. If this
2210 * permission is not granted, this method will throw a
2211 * SecurityException, and the current value of the property will
2212 * be left unchanged.
2213 *
2214 * @param alwaysOnTop true if the window should always be above other
2215 * windows
2216 * @throws SecurityException if the calling thread does not have
2217 * permission to set the value of always-on-top property
2218 *
2219 * @see #isAlwaysOnTop
2220 * @see #toFront
2221 * @see #toBack
2222 * @see AWTPermission
2223 * @see #isAlwaysOnTopSupported
2224 * @see #getToolkit
2225 * @see Toolkit#isAlwaysOnTopSupported
2226 * @since 1.5
2227 */
2228 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2229 SecurityManager security = System.getSecurityManager();
2230 if (security != null) {
2231 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2232 }
2233
2234 boolean oldAlwaysOnTop;
2235 synchronized(this) {
2236 oldAlwaysOnTop = this.alwaysOnTop;
2237 this.alwaysOnTop = alwaysOnTop;
2238 }
2239 if (oldAlwaysOnTop != alwaysOnTop ) {
2240 if (isAlwaysOnTopSupported()) {
2241 WindowPeer peer = (WindowPeer)this.peer;
2242 synchronized(getTreeLock()) {
2243 if (peer != null) {
2244 peer.updateAlwaysOnTopState();
2245 }
2246 }
2247 }
2248 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2249 }
2250 for (WeakReference<Window> ref : ownedWindowList) {
2251 Window window = ref.get();
2252 if (window != null) {
2253 try {
2254 window.setAlwaysOnTop(alwaysOnTop);
2255 } catch (SecurityException ignore) {
2256 }
2257 }
2258 }
2259 }
2260
2261 /**
2262 * Returns whether the always-on-top mode is supported for this
2263 * window. Some platforms may not support always-on-top windows, some
2264 * may support only some kinds of top-level windows; for example,
2265 * a platform may not support always-on-top modal dialogs.
2266 *
2267 * @return {@code true}, if the always-on-top mode is supported for
2268 * this window and this window's toolkit supports always-on-top windows,
2269 * {@code false} otherwise
2270 *
2271 * @see #setAlwaysOnTop(boolean)
2272 * @see #getToolkit
2273 * @see Toolkit#isAlwaysOnTopSupported
2274 * @since 1.6
2275 */
2276 public boolean isAlwaysOnTopSupported() {
2277 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2278 }
2279
2280
2281 /**
2282 * Returns whether this window is an always-on-top window.
2283 * @return {@code true}, if the window is in always-on-top state,
2284 * {@code false} otherwise
2285 * @see #setAlwaysOnTop
2286 * @since 1.5
2287 */
2288 public final boolean isAlwaysOnTop() {
2289 return alwaysOnTop;
2290 }
2291
2292
2293 /**
2294 * Returns the child Component of this Window that has focus if this Window
2295 * is focused; returns null otherwise.
2296 *
2297 * @return the child Component with focus, or null if this Window is not
2298 * focused
2299 * @see #getMostRecentFocusOwner
2300 * @see #isFocused
2301 */
2302 public Component getFocusOwner() {
2303 return (isFocused())
2304 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2305 getFocusOwner()
2306 : null;
2307 }
2308
2309 /**
2310 * Returns the child Component of this Window that will receive the focus
2311 * when this Window is focused. If this Window is currently focused, this
2312 * method returns the same Component as {@code getFocusOwner()}. If
2313 * this Window is not focused, then the child Component that most recently
2314 * requested focus will be returned. If no child Component has ever
2315 * requested focus, and this is a focusable Window, then this Window's
2316 * initial focusable Component is returned. If no child Component has ever
2317 * requested focus, and this is a non-focusable Window, null is returned.
2318 *
2319 * @return the child Component that will receive focus when this Window is
2320 * focused
2321 * @see #getFocusOwner
2322 * @see #isFocused
2323 * @see #isFocusableWindow
2324 * @since 1.4
2325 */
2326 public Component getMostRecentFocusOwner() {
2327 if (isFocused()) {
2328 return getFocusOwner();
2329 } else {
2330 Component mostRecent =
2331 KeyboardFocusManager.getMostRecentFocusOwner(this);
2332 if (mostRecent != null) {
2333 return mostRecent;
2334 } else {
2335 return (isFocusableWindow())
2336 ? getFocusTraversalPolicy().getInitialComponent(this)
2337 : null;
2338 }
2339 }
2340 }
2341
2342 /**
2343 * Returns whether this Window is active. Only a Frame or a Dialog may be
2344 * active. The native windowing system may denote the active Window or its
2345 * children with special decorations, such as a highlighted title bar. The
2346 * active Window is always either the focused Window, or the first Frame or
2347 * Dialog that is an owner of the focused Window.
2348 *
2349 * @return whether this is the active Window.
2350 * @see #isFocused
2351 * @since 1.4
2352 */
2353 public boolean isActive() {
2354 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2355 getActiveWindow() == this);
2356 }
2357
2358 /**
2359 * Returns whether this Window is focused. If there exists a focus owner,
2360 * the focused Window is the Window that is, or contains, that focus owner.
2361 * If there is no focus owner, then no Window is focused.
2362 * <p>
2363 * If the focused Window is a Frame or a Dialog it is also the active
2364 * Window. Otherwise, the active Window is the first Frame or Dialog that
2365 * is an owner of the focused Window.
2366 *
2367 * @return whether this is the focused Window.
2368 * @see #isActive
2369 * @since 1.4
2370 */
2371 public boolean isFocused() {
2372 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2373 getGlobalFocusedWindow() == this);
2374 }
2375
2376 /**
2377 * Gets a focus traversal key for this Window. (See {@code
2378 * setFocusTraversalKeys} for a full description of each key.)
2379 * <p>
2380 * If the traversal key has not been explicitly set for this Window,
2381 * then this Window's parent's traversal key is returned. If the
2382 * traversal key has not been explicitly set for any of this Window's
2383 * ancestors, then the current KeyboardFocusManager's default traversal key
2384 * is returned.
2385 *
2386 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2387 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2388 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2389 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2390 * @return the AWTKeyStroke for the specified key
2391 * @see Container#setFocusTraversalKeys
2392 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2393 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2394 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2395 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2396 * @throws IllegalArgumentException if id is not one of
2397 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2398 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2399 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2400 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2401 * @since 1.4
2402 */
2403 @SuppressWarnings("unchecked")
2404 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2405 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2406 throw new IllegalArgumentException("invalid focus traversal key identifier");
2407 }
2408
2409 // Okay to return Set directly because it is an unmodifiable view
2410 @SuppressWarnings("rawtypes")
2411 Set keystrokes = (focusTraversalKeys != null)
2412 ? focusTraversalKeys[id]
2413 : null;
2414
2415 if (keystrokes != null) {
2416 return keystrokes;
2417 } else {
2418 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2419 getDefaultFocusTraversalKeys(id);
2420 }
2421 }
2422
2423 /**
2424 * Does nothing because Windows must always be roots of a focus traversal
2425 * cycle. The passed-in value is ignored.
2426 *
2427 * @param focusCycleRoot this value is ignored
2428 * @see #isFocusCycleRoot
2429 * @see Container#setFocusTraversalPolicy
2430 * @see Container#getFocusTraversalPolicy
2431 * @since 1.4
2432 */
2433 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2434 }
2435
2436 /**
2437 * Always returns {@code true} because all Windows must be roots of a
2438 * focus traversal cycle.
2439 *
2440 * @return {@code true}
2441 * @see #setFocusCycleRoot
2442 * @see Container#setFocusTraversalPolicy
2443 * @see Container#getFocusTraversalPolicy
2444 * @since 1.4
2445 */
2446 public final boolean isFocusCycleRoot() {
2447 return true;
2448 }
2449
2450 /**
2451 * Always returns {@code null} because Windows have no ancestors; they
2452 * represent the top of the Component hierarchy.
2453 *
2454 * @return {@code null}
2455 * @see Container#isFocusCycleRoot()
2456 * @since 1.4
2457 */
2458 public final Container getFocusCycleRootAncestor() {
2459 return null;
2460 }
2461
2462 /**
2463 * Returns whether this Window can become the focused Window, that is,
2464 * whether this Window or any of its subcomponents can become the focus
2465 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2466 * must be set to {@code true}. For a Window which is not a Frame or
2467 * Dialog to be focusable, its focusable Window state must be set to
2468 * {@code true}, its nearest owning Frame or Dialog must be
2469 * showing on the screen, and it must contain at least one Component in
2470 * its focus traversal cycle. If any of these conditions is not met, then
2471 * neither this Window nor any of its subcomponents can become the focus
2472 * owner.
2473 *
2474 * @return {@code true} if this Window can be the focused Window;
2475 * {@code false} otherwise
2476 * @see #getFocusableWindowState
2477 * @see #setFocusableWindowState
2478 * @see #isShowing
2479 * @see Component#isFocusable
2480 * @since 1.4
2481 */
2482 public final boolean isFocusableWindow() {
2483 // If a Window/Frame/Dialog was made non-focusable, then it is always
2484 // non-focusable.
2485 if (!getFocusableWindowState()) {
2486 return false;
2487 }
2488
2489 // All other tests apply only to Windows.
2490 if (this instanceof Frame || this instanceof Dialog) {
2491 return true;
2492 }
2493
2494 // A Window must have at least one Component in its root focus
2495 // traversal cycle to be focusable.
2496 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2497 return false;
2498 }
2499
2500 // A Window's nearest owning Frame or Dialog must be showing on the
2501 // screen.
2502 for (Window owner = getOwner(); owner != null;
2503 owner = owner.getOwner())
2504 {
2505 if (owner instanceof Frame || owner instanceof Dialog) {
2506 return owner.isShowing();
2507 }
2508 }
2509
2510 return false;
2511 }
2512
2513 /**
2514 * Returns whether this Window can become the focused Window if it meets
2515 * the other requirements outlined in {@code isFocusableWindow}. If
2516 * this method returns {@code false}, then
2517 * {@code isFocusableWindow} will return {@code false} as well.
2518 * If this method returns {@code true}, then
2519 * {@code isFocusableWindow} may return {@code true} or
2520 * {@code false} depending upon the other requirements which must be
2521 * met in order for a Window to be focusable.
2522 * <p>
2523 * By default, all Windows have a focusable Window state of
2524 * {@code true}.
2525 *
2526 * @return whether this Window can be the focused Window
2527 * @see #isFocusableWindow
2528 * @see #setFocusableWindowState
2529 * @see #isShowing
2530 * @see Component#setFocusable
2531 * @since 1.4
2532 */
2533 public boolean getFocusableWindowState() {
2534 return focusableWindowState;
2535 }
2536
2537 /**
2538 * Sets whether this Window can become the focused Window if it meets
2539 * the other requirements outlined in {@code isFocusableWindow}. If
2540 * this Window's focusable Window state is set to {@code false}, then
2541 * {@code isFocusableWindow} will return {@code false}. If this
2542 * Window's focusable Window state is set to {@code true}, then
2543 * {@code isFocusableWindow} may return {@code true} or
2544 * {@code false} depending upon the other requirements which must be
2545 * met in order for a Window to be focusable.
2546 * <p>
2547 * Setting a Window's focusability state to {@code false} is the
2548 * standard mechanism for an application to identify to the AWT a Window
2549 * which will be used as a floating palette or toolbar, and thus should be
2550 * a non-focusable Window.
2551 *
2552 * Setting the focusability state on a visible {@code Window}
2553 * can have a delayed effect on some platforms — the actual
2554 * change may happen only when the {@code Window} becomes
2555 * hidden and then visible again. To ensure consistent behavior
2556 * across platforms, set the {@code Window}'s focusable state
2557 * when the {@code Window} is invisible and then show it.
2558 *
2559 * @param focusableWindowState whether this Window can be the focused
2560 * Window
2561 * @see #isFocusableWindow
2562 * @see #getFocusableWindowState
2563 * @see #isShowing
2564 * @see Component#setFocusable
2565 * @since 1.4
2566 */
2567 public void setFocusableWindowState(boolean focusableWindowState) {
2568 boolean oldFocusableWindowState;
2569 synchronized (this) {
2570 oldFocusableWindowState = this.focusableWindowState;
2571 this.focusableWindowState = focusableWindowState;
2572 }
2573 WindowPeer peer = (WindowPeer)this.peer;
2574 if (peer != null) {
2575 peer.updateFocusableWindowState();
2576 }
2577 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2578 focusableWindowState);
2579 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2580 for (Window owner = getOwner();
2581 owner != null;
2582 owner = owner.getOwner())
2583 {
2584 Component toFocus =
2585 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2586 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2587 return;
2588 }
2589 }
2590 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2591 clearGlobalFocusOwnerPriv();
2592 }
2593 }
2594
2595 /**
2596 * Sets whether this window should receive focus on
2597 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2598 * or being moved to the front (with a call to {@link #toFront}).
2599 * <p>
2600 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2601 * (e.g. when showing an owner of the window makes the window to be shown).
2602 * {@link #toFront} may also be called indirectly (e.g. when
2603 * {@link #setVisible setVisible(true)} is called on already visible window).
2604 * In all such cases this property takes effect as well.
2605 * <p>
2606 * The value of the property is not inherited by owned windows.
2607 *
2608 * @param autoRequestFocus whether this window should be focused on
2609 * subsequently being shown or being moved to the front
2610 * @see #isAutoRequestFocus
2611 * @see #isFocusableWindow
2612 * @see #setVisible
2613 * @see #toFront
2614 * @since 1.7
2615 */
2616 public void setAutoRequestFocus(boolean autoRequestFocus) {
2617 this.autoRequestFocus = autoRequestFocus;
2618 }
2619
2620 /**
2621 * Returns whether this window should receive focus on subsequently being shown
2622 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2623 * (with a call to {@link #toFront}).
2624 * <p>
2625 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2626 *
2627 * @return {@code autoRequestFocus} value
2628 * @see #setAutoRequestFocus
2629 * @since 1.7
2630 */
2631 public boolean isAutoRequestFocus() {
2632 return autoRequestFocus;
2633 }
2634
2635 /**
2636 * Adds a PropertyChangeListener to the listener list. The listener is
2637 * registered for all bound properties of this class, including the
2638 * following:
2639 * <ul>
2640 * <li>this Window's font ("font")</li>
2641 * <li>this Window's background color ("background")</li>
2642 * <li>this Window's foreground color ("foreground")</li>
2643 * <li>this Window's focusability ("focusable")</li>
2644 * <li>this Window's focus traversal keys enabled state
2645 * ("focusTraversalKeysEnabled")</li>
2646 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2647 * ("forwardFocusTraversalKeys")</li>
2648 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2649 * ("backwardFocusTraversalKeys")</li>
2650 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2651 * ("upCycleFocusTraversalKeys")</li>
2652 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2653 * ("downCycleFocusTraversalKeys")</li>
2654 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2655 * </li>
2656 * <li>this Window's focusable Window state ("focusableWindowState")
2657 * </li>
2658 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2659 * </ul>
2660 * Note that if this Window is inheriting a bound property, then no
2661 * event will be fired in response to a change in the inherited property.
2662 * <p>
2663 * If listener is null, no exception is thrown and no action is performed.
2664 *
2665 * @param listener the PropertyChangeListener to be added
2666 *
2667 * @see Component#removePropertyChangeListener
2668 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2669 */
2670 public void addPropertyChangeListener(PropertyChangeListener listener) {
2671 super.addPropertyChangeListener(listener);
2672 }
2673
2674 /**
2675 * Adds a PropertyChangeListener to the listener list for a specific
2676 * property. The specified property may be user-defined, or one of the
2677 * following:
2678 * <ul>
2679 * <li>this Window's font ("font")</li>
2680 * <li>this Window's background color ("background")</li>
2681 * <li>this Window's foreground color ("foreground")</li>
2682 * <li>this Window's focusability ("focusable")</li>
2683 * <li>this Window's focus traversal keys enabled state
2684 * ("focusTraversalKeysEnabled")</li>
2685 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2686 * ("forwardFocusTraversalKeys")</li>
2687 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2688 * ("backwardFocusTraversalKeys")</li>
2689 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2690 * ("upCycleFocusTraversalKeys")</li>
2691 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2692 * ("downCycleFocusTraversalKeys")</li>
2693 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2694 * </li>
2695 * <li>this Window's focusable Window state ("focusableWindowState")
2696 * </li>
2697 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2698 * </ul>
2699 * Note that if this Window is inheriting a bound property, then no
2700 * event will be fired in response to a change in the inherited property.
2701 * <p>
2702 * If listener is null, no exception is thrown and no action is performed.
2703 *
2704 * @param propertyName one of the property names listed above
2705 * @param listener the PropertyChangeListener to be added
2706 *
2707 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2708 * @see Component#removePropertyChangeListener
2709 */
2710 public void addPropertyChangeListener(String propertyName,
2711 PropertyChangeListener listener) {
2712 super.addPropertyChangeListener(propertyName, listener);
2713 }
2714
2715 /**
2716 * Indicates if this container is a validate root.
2717 * <p>
2718 * {@code Window} objects are the validate roots, and, therefore, they
2719 * override this method to return {@code true}.
2720 *
2721 * @return {@code true}
2722 * @since 1.7
2723 * @see java.awt.Container#isValidateRoot
2724 */
2725 @Override
2726 public boolean isValidateRoot() {
2727 return true;
2728 }
2729
2730 /**
2731 * Dispatches an event to this window or one of its sub components.
2732 * @param e the event
2733 */
2734 void dispatchEventImpl(AWTEvent e) {
2735 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2736 invalidate();
2737 validate();
2738 }
2739 super.dispatchEventImpl(e);
2740 }
2741
2742 /**
2743 * @deprecated As of JDK version 1.1
2744 * replaced by {@code dispatchEvent(AWTEvent)}.
2745 */
2746 @Deprecated
2747 public boolean postEvent(Event e) {
2748 if (handleEvent(e)) {
2749 e.consume();
2750 return true;
2751 }
2752 return false;
2753 }
2754
2755 /**
2756 * Checks if this Window is showing on screen.
2757 * @see Component#setVisible
2758 */
2759 public boolean isShowing() {
2760 return visible;
2761 }
2762
2763 boolean isDisposing() {
2764 return disposing;
2765 }
2766
2767 /**
2768 * @deprecated As of J2SE 1.4, replaced by
2769 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2770 */
2771 @Deprecated
2772 public void applyResourceBundle(ResourceBundle rb) {
2773 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2774 }
2775
2776 /**
2777 * @deprecated As of J2SE 1.4, replaced by
2778 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2779 */
2780 @Deprecated
2781 public void applyResourceBundle(String rbName) {
2782 applyResourceBundle(ResourceBundle.getBundle(rbName));
2783 }
2784
2785 /*
2786 * Support for tracking all windows owned by this window
2787 */
2788 void addOwnedWindow(WeakReference<Window> weakWindow) {
2789 if (weakWindow != null) {
2790 synchronized(ownedWindowList) {
2791 // this if statement should really be an assert, but we don't
2792 // have asserts...
2793 if (!ownedWindowList.contains(weakWindow)) {
2794 ownedWindowList.addElement(weakWindow);
2795 }
2796 }
2797 }
2798 }
2799
2800 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2801 if (weakWindow != null) {
2802 // synchronized block not required since removeElement is
2803 // already synchronized
2804 ownedWindowList.removeElement(weakWindow);
2805 }
2806 }
2807
2808 void connectOwnedWindow(Window child) {
2809 child.parent = this;
2810 addOwnedWindow(child.weakThis);
2811 child.disposerRecord.updateOwner();
2812 }
2813
2814 private void addToWindowList() {
2815 synchronized (Window.class) {
2816 @SuppressWarnings("unchecked")
2817 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2818 if (windowList == null) {
2819 windowList = new Vector<WeakReference<Window>>();
2820 appContext.put(Window.class, windowList);
2821 }
2822 windowList.add(weakThis);
2823 }
2824 }
2825
2826 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2827 synchronized (Window.class) {
2828 @SuppressWarnings("unchecked")
2829 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2830 if (windowList != null) {
2831 windowList.remove(weakThis);
2832 }
2833 }
2834 }
2835
2836 private void removeFromWindowList() {
2837 removeFromWindowList(appContext, weakThis);
2838 }
2839
2840 /**
2841 * Window type.
2842 *
2843 * Synchronization: ObjectLock
2844 */
2845 private Type type = Type.NORMAL;
2846
2847 /**
2848 * Sets the type of the window.
2849 *
2850 * This method can only be called while the window is not displayable.
2851 *
2852 * @throws IllegalComponentStateException if the window
2853 * is displayable.
2854 * @throws IllegalArgumentException if the type is {@code null}
2855 * @see Component#isDisplayable
2856 * @see #getType
2857 * @since 1.7
2858 */
2859 public void setType(Type type) {
2860 if (type == null) {
2861 throw new IllegalArgumentException("type should not be null.");
2862 }
2863 synchronized (getTreeLock()) {
2864 if (isDisplayable()) {
2865 throw new IllegalComponentStateException(
2866 "The window is displayable.");
2867 }
2868 synchronized (getObjectLock()) {
2869 this.type = type;
2870 }
2871 }
2872 }
2873
2874 /**
2875 * Returns the type of the window.
2876 *
2877 * @see #setType
2878 * @since 1.7
2879 */
2880 public Type getType() {
2881 synchronized (getObjectLock()) {
2882 return type;
2883 }
2884 }
2885
2886 /**
2887 * The window serialized data version.
2888 *
2889 * @serial
2890 */
2891 private int windowSerializedDataVersion = 2;
2892
2893 /**
2894 * Writes default serializable fields to stream. Writes
2895 * a list of serializable {@code WindowListener}s and
2896 * {@code WindowFocusListener}s as optional data.
2897 * Writes a list of child windows as optional data.
2898 * Writes a list of icon images as optional data
2899 *
2900 * @param s the {@code ObjectOutputStream} to write
2901 * @serialData {@code null} terminated sequence of
2902 * 0 or more pairs; the pair consists of a {@code String}
2903 * and {@code Object}; the {@code String}
2904 * indicates the type of object and is one of the following:
2905 * {@code windowListenerK} indicating a
2906 * {@code WindowListener} object;
2907 * {@code windowFocusWindowK} indicating a
2908 * {@code WindowFocusListener} object;
2909 * {@code ownedWindowK} indicating a child
2910 * {@code Window} object
2911 *
2912 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2913 * @see Component#windowListenerK
2914 * @see Component#windowFocusListenerK
2915 * @see Component#ownedWindowK
2916 * @see #readObject(ObjectInputStream)
2917 */
2918 private void writeObject(ObjectOutputStream s) throws IOException {
2919 synchronized (this) {
2920 // Update old focusMgr fields so that our object stream can be read
2921 // by previous releases
2922 focusMgr = new FocusManager();
2923 focusMgr.focusRoot = this;
2924 focusMgr.focusOwner = getMostRecentFocusOwner();
2925
2926 s.defaultWriteObject();
2927
2928 // Clear fields so that we don't keep extra references around
2929 focusMgr = null;
2930
2931 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2932 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2933 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2934 }
2935
2936 s.writeObject(null);
2937
2938 synchronized (ownedWindowList) {
2939 for (int i = 0; i < ownedWindowList.size(); i++) {
2940 Window child = ownedWindowList.elementAt(i).get();
2941 if (child != null) {
2942 s.writeObject(ownedWindowK);
2943 s.writeObject(child);
2944 }
2945 }
2946 }
2947 s.writeObject(null);
2948
2949 //write icon array
2950 if (icons != null) {
2951 for (Image i : icons) {
2952 if (i instanceof Serializable) {
2953 s.writeObject(i);
2954 }
2955 }
2956 }
2957 s.writeObject(null);
2958 }
2959
2960 //
2961 // Part of deserialization procedure to be called before
2962 // user's code.
2963 //
2964 private void initDeserializedWindow() {
2965 setWarningString();
2966 inputContextLock = new Object();
2967
2968 // Deserialized Windows are not yet visible.
2969 visible = false;
2970
2971 weakThis = new WeakReference<>(this);
2972
2973 anchor = new Object();
2974 disposerRecord = new WindowDisposerRecord(appContext, this);
2975 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
2976
2977 addToWindowList();
2978 initGC(null);
2979 ownedWindowList = new Vector<>();
2980 }
2981
2982 private void deserializeResources(ObjectInputStream s)
2983 throws ClassNotFoundException, IOException, HeadlessException {
2984
2985 if (windowSerializedDataVersion < 2) {
2986 // Translate old-style focus tracking to new model. For 1.4 and
2987 // later releases, we'll rely on the Window's initial focusable
2988 // Component.
2989 if (focusMgr != null) {
2990 if (focusMgr.focusOwner != null) {
2991 KeyboardFocusManager.
2992 setMostRecentFocusOwner(this, focusMgr.focusOwner);
2993 }
2994 }
2995
2996 // This field is non-transient and relies on default serialization.
2997 // However, the default value is insufficient, so we need to set
2998 // it explicitly for object data streams prior to 1.4.
2999 focusableWindowState = true;
3000
3001
3002 }
3003
3004 Object keyOrNull;
3005 while(null != (keyOrNull = s.readObject())) {
3006 String key = ((String)keyOrNull).intern();
3007
3008 if (windowListenerK == key) {
3009 addWindowListener((WindowListener)(s.readObject()));
3010 } else if (windowFocusListenerK == key) {
3011 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3012 } else if (windowStateListenerK == key) {
3013 addWindowStateListener((WindowStateListener)(s.readObject()));
3014 } else // skip value for unrecognized key
3015 s.readObject();
3016 }
3017
3018 try {
3019 while (null != (keyOrNull = s.readObject())) {
3020 String key = ((String)keyOrNull).intern();
3021
3022 if (ownedWindowK == key)
3023 connectOwnedWindow((Window) s.readObject());
3024
3025 else // skip value for unrecognized key
3026 s.readObject();
3027 }
3028
3029 //read icons
3030 Object obj = s.readObject(); //Throws OptionalDataException
3031 //for pre1.6 objects.
3032 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3033 //pre1.6 version if icons is null.
3034 while (obj != null) {
3035 if (obj instanceof Image) {
3036 icons.add((Image)obj);
3037 }
3038 obj = s.readObject();
3039 }
3040 }
3041 catch (OptionalDataException e) {
3042 // 1.1 serialized form
3043 // ownedWindowList will be updated by Frame.readObject
3044 }
3045
3046 }
3047
3048 /**
3049 * Reads the {@code ObjectInputStream} and an optional
3050 * list of listeners to receive various events fired by
3051 * the component; also reads a list of
3052 * (possibly {@code null}) child windows.
3053 * Unrecognized keys or values will be ignored.
3054 *
3055 * @param s the {@code ObjectInputStream} to read
3056 * @exception HeadlessException if
3057 * {@code GraphicsEnvironment.isHeadless} returns
3058 * {@code true}
3059 * @see java.awt.GraphicsEnvironment#isHeadless
3060 * @see #writeObject
3061 */
3062 private void readObject(ObjectInputStream s)
3063 throws ClassNotFoundException, IOException, HeadlessException
3064 {
3065 GraphicsEnvironment.checkHeadless();
3066 initDeserializedWindow();
3067 ObjectInputStream.GetField f = s.readFields();
3068
3069 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3070 state = f.get("state", 0);
3071 focusableWindowState = f.get("focusableWindowState", true);
3072 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3073 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3074 // Note: 1.4 (or later) doesn't use focusMgr
3075 focusMgr = (FocusManager)f.get("focusMgr", null);
3076 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3077 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3078 setModalExclusionType(et); // since 6.0
3079 boolean aot = f.get("alwaysOnTop", false);
3080 if(aot) {
3081 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3082 }
3083 shape = (Shape)f.get("shape", null);
3084 opacity = (Float)f.get("opacity", 1.0f);
3085
3086 this.securityWarningWidth = 0;
3087 this.securityWarningHeight = 0;
3088 this.securityWarningPointX = 2.0;
3089 this.securityWarningPointY = 0.0;
3090 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3091 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3092
3093 deserializeResources(s);
3094 }
3095
3096 /*
3097 * --- Accessibility Support ---
3098 *
3099 */
3100
3101 /**
3102 * Gets the AccessibleContext associated with this Window.
3103 * For windows, the AccessibleContext takes the form of an
3104 * AccessibleAWTWindow.
3105 * A new AccessibleAWTWindow instance is created if necessary.
3106 *
3107 * @return an AccessibleAWTWindow that serves as the
3108 * AccessibleContext of this Window
3109 * @since 1.3
3110 */
3111 public AccessibleContext getAccessibleContext() {
3112 if (accessibleContext == null) {
3113 accessibleContext = new AccessibleAWTWindow();
3114 }
3115 return accessibleContext;
3116 }
3117
3118 /**
3119 * This class implements accessibility support for the
3120 * {@code Window} class. It provides an implementation of the
3121 * Java Accessibility API appropriate to window user-interface elements.
3122 * @since 1.3
3123 */
3124 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3125 {
3126 /*
3127 * JDK 1.3 serialVersionUID
3128 */
3129 private static final long serialVersionUID = 4215068635060671780L;
3130
3131 /**
3132 * Get the role of this object.
3133 *
3134 * @return an instance of AccessibleRole describing the role of the
3135 * object
3136 * @see javax.accessibility.AccessibleRole
3137 */
3138 public AccessibleRole getAccessibleRole() {
3139 return AccessibleRole.WINDOW;
3140 }
3141
3142 /**
3143 * Get the state of this object.
3144 *
3145 * @return an instance of AccessibleStateSet containing the current
3146 * state set of the object
3147 * @see javax.accessibility.AccessibleState
3148 */
3149 public AccessibleStateSet getAccessibleStateSet() {
3150 AccessibleStateSet states = super.getAccessibleStateSet();
3151 if (getFocusOwner() != null) {
3152 states.add(AccessibleState.ACTIVE);
3153 }
3154 return states;
3155 }
3156
3157 } // inner class AccessibleAWTWindow
3158
3159 @Override
3160 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3161 if (gc == null) {
3162 gc = GraphicsEnvironment.
3163 getLocalGraphicsEnvironment().
3164 getDefaultScreenDevice().
3165 getDefaultConfiguration();
3166 }
3167 synchronized (getTreeLock()) {
3168 super.setGraphicsConfiguration(gc);
3169 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3170 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3171 }
3172 }
3173 }
3174
3175 /**
3176 * Sets the location of the window relative to the specified
3177 * component according to the following scenarios.
3178 * <p>
3179 * The target screen mentioned below is a screen to which
3180 * the window should be placed after the setLocationRelativeTo
3181 * method is called.
3182 * <ul>
3183 * <li>If the component is {@code null}, or the {@code
3184 * GraphicsConfiguration} associated with this component is
3185 * {@code null}, the window is placed in the center of the
3186 * screen. The center point can be obtained with the {@link
3187 * GraphicsEnvironment#getCenterPoint
3188 * GraphicsEnvironment.getCenterPoint} method.
3189 * <li>If the component is not {@code null}, but it is not
3190 * currently showing, the window is placed in the center of
3191 * the target screen defined by the {@code
3192 * GraphicsConfiguration} associated with this component.
3193 * <li>If the component is not {@code null} and is shown on
3194 * the screen, then the window is located in such a way that
3195 * the center of the window coincides with the center of the
3196 * component.
3197 * </ul>
3198 * <p>
3199 * If the screens configuration does not allow the window to
3200 * be moved from one screen to another, then the window is
3201 * only placed at the location determined according to the
3202 * above conditions and its {@code GraphicsConfiguration} is
3203 * not changed.
3204 * <p>
3205 * <b>Note</b>: If the lower edge of the window is out of the screen,
3206 * then the window is placed to the side of the {@code Component}
3207 * that is closest to the center of the screen. So if the
3208 * component is on the right part of the screen, the window
3209 * is placed to its left, and vice versa.
3210 * <p>
3211 * If after the window location has been calculated, the upper,
3212 * left, or right edge of the window is out of the screen,
3213 * then the window is located in such a way that the upper,
3214 * left, or right edge of the window coincides with the
3215 * corresponding edge of the screen. If both left and right
3216 * edges of the window are out of the screen, the window is
3217 * placed at the left side of the screen. The similar placement
3218 * will occur if both top and bottom edges are out of the screen.
3219 * In that case, the window is placed at the top side of the screen.
3220 * <p>
3221 * The method changes the geometry-related data. Therefore,
3222 * the native windowing system may ignore such requests, or it may modify
3223 * the requested data, so that the {@code Window} object is placed and sized
3224 * in a way that corresponds closely to the desktop settings.
3225 *
3226 * @param c the component in relation to which the window's location
3227 * is determined
3228 * @see java.awt.GraphicsEnvironment#getCenterPoint
3229 * @since 1.4
3230 */
3231 public void setLocationRelativeTo(Component c) {
3232 // target location
3233 int dx = 0, dy = 0;
3234 // target GC
3235 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3236 Rectangle gcBounds = gc.getBounds();
3237
3238 Dimension windowSize = getSize();
3239
3240 // search a top-level of c
3241 Window componentWindow = SunToolkit.getContainingWindow(c);
3242 if ((c == null) || (componentWindow == null)) {
3243 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3244 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3245 gcBounds = gc.getBounds();
3246 Point centerPoint = ge.getCenterPoint();
3247 dx = centerPoint.x - windowSize.width / 2;
3248 dy = centerPoint.y - windowSize.height / 2;
3249 } else if (!c.isShowing()) {
3250 gc = componentWindow.getGraphicsConfiguration();
3251 gcBounds = gc.getBounds();
3252 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3253 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3254 } else {
3255 gc = componentWindow.getGraphicsConfiguration();
3256 gcBounds = gc.getBounds();
3257 Dimension compSize = c.getSize();
3258 Point compLocation = c.getLocationOnScreen();
3259 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3260 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3261
3262 // Adjust for bottom edge being offscreen
3263 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3264 dy = gcBounds.y + gcBounds.height - windowSize.height;
3265 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3266 dx = compLocation.x + compSize.width;
3267 } else {
3268 dx = compLocation.x - windowSize.width;
3269 }
3270 }
3271 }
3272
3273 // Avoid being placed off the edge of the screen:
3274 // bottom
3275 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3276 dy = gcBounds.y + gcBounds.height - windowSize.height;
3277 }
3278 // top
3279 if (dy < gcBounds.y) {
3280 dy = gcBounds.y;
3281 }
3282 // right
3283 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3284 dx = gcBounds.x + gcBounds.width - windowSize.width;
3285 }
3286 // left
3287 if (dx < gcBounds.x) {
3288 dx = gcBounds.x;
3289 }
3290
3291 setLocation(dx, dy);
3292 }
3293
3294 /**
3295 * Overridden from Component. Top-level Windows should not propagate a
3296 * MouseWheelEvent beyond themselves into their owning Windows.
3297 */
3298 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3299
3300 /**
3301 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3302 */
3303 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3304
3305 /**
3306 * Creates a new strategy for multi-buffering on this component.
3307 * Multi-buffering is useful for rendering performance. This method
3308 * attempts to create the best strategy available with the number of
3309 * buffers supplied. It will always create a {@code BufferStrategy}
3310 * with that number of buffers.
3311 * A page-flipping strategy is attempted first, then a blitting strategy
3312 * using accelerated buffers. Finally, an unaccelerated blitting
3313 * strategy is used.
3314 * <p>
3315 * Each time this method is called,
3316 * the existing buffer strategy for this component is discarded.
3317 * @param numBuffers number of buffers to create
3318 * @exception IllegalArgumentException if numBuffers is less than 1.
3319 * @exception IllegalStateException if the component is not displayable
3320 * @see #isDisplayable
3321 * @see #getBufferStrategy
3322 * @since 1.4
3323 */
3324 public void createBufferStrategy(int numBuffers) {
3325 super.createBufferStrategy(numBuffers);
3326 }
3327
3328 /**
3329 * Creates a new strategy for multi-buffering on this component with the
3330 * required buffer capabilities. This is useful, for example, if only
3331 * accelerated memory or page flipping is desired (as specified by the
3332 * buffer capabilities).
3333 * <p>
3334 * Each time this method
3335 * is called, the existing buffer strategy for this component is discarded.
3336 * @param numBuffers number of buffers to create, including the front buffer
3337 * @param caps the required capabilities for creating the buffer strategy;
3338 * cannot be {@code null}
3339 * @exception AWTException if the capabilities supplied could not be
3340 * supported or met; this may happen, for example, if there is not enough
3341 * accelerated memory currently available, or if page flipping is specified
3342 * but not possible.
3343 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3344 * caps is {@code null}
3345 * @see #getBufferStrategy
3346 * @since 1.4
3347 */
3348 public void createBufferStrategy(int numBuffers,
3349 BufferCapabilities caps) throws AWTException {
3350 super.createBufferStrategy(numBuffers, caps);
3351 }
3352
3353 /**
3354 * Returns the {@code BufferStrategy} used by this component. This
3355 * method will return null if a {@code BufferStrategy} has not yet
3356 * been created or has been disposed.
3357 *
3358 * @return the buffer strategy used by this component
3359 * @see #createBufferStrategy
3360 * @since 1.4
3361 */
3362 public BufferStrategy getBufferStrategy() {
3363 return super.getBufferStrategy();
3364 }
3365
3366 Component getTemporaryLostComponent() {
3367 return temporaryLostComponent;
3368 }
3369 Component setTemporaryLostComponent(Component component) {
3370 Component previousComp = temporaryLostComponent;
3371 // Check that "component" is an acceptable focus owner and don't store it otherwise
3372 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3373 if (component == null || component.canBeFocusOwner()) {
3374 temporaryLostComponent = component;
3375 } else {
3376 temporaryLostComponent = null;
3377 }
3378 return previousComp;
3379 }
3380
3381 /**
3382 * Checks whether this window can contain focus owner.
3383 * Verifies that it is focusable and as container it can container focus owner.
3384 * @since 1.5
3385 */
3386 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3387 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3388 }
3389
3390 private boolean locationByPlatform = locationByPlatformProp;
3391
3392
3393 /**
3394 * Sets whether this Window should appear at the default location for the
3395 * native windowing system or at the current location (returned by
3396 * {@code getLocation}) the next time the Window is made visible.
3397 * This behavior resembles a native window shown without programmatically
3398 * setting its location. Most windowing systems cascade windows if their
3399 * locations are not explicitly set. The actual location is determined once the
3400 * window is shown on the screen.
3401 * <p>
3402 * This behavior can also be enabled by setting the System Property
3403 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3404 * take precedence.
3405 * <p>
3406 * Calls to {@code setVisible}, {@code setLocation} and
3407 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3408 * this property of the Window.
3409 * <p>
3410 * For example, after the following code is executed:
3411 * <pre>
3412 * setLocationByPlatform(true);
3413 * setVisible(true);
3414 * boolean flag = isLocationByPlatform();
3415 * </pre>
3416 * The window will be shown at platform's default location and
3417 * {@code flag} will be {@code false}.
3418 * <p>
3419 * In the following sample:
3420 * <pre>
3421 * setLocationByPlatform(true);
3422 * setLocation(10, 10);
3423 * boolean flag = isLocationByPlatform();
3424 * setVisible(true);
3425 * </pre>
3426 * The window will be shown at (10, 10) and {@code flag} will be
3427 * {@code false}.
3428 *
3429 * @param locationByPlatform {@code true} if this Window should appear
3430 * at the default location, {@code false} if at the current location
3431 * @throws IllegalComponentStateException if the window
3432 * is showing on screen and locationByPlatform is {@code true}.
3433 * @see #setLocation
3434 * @see #isShowing
3435 * @see #setVisible
3436 * @see #isLocationByPlatform
3437 * @see java.lang.System#getProperty(String)
3438 * @since 1.5
3439 */
3440 public void setLocationByPlatform(boolean locationByPlatform) {
3441 synchronized (getTreeLock()) {
3442 if (locationByPlatform && isShowing()) {
3443 throw new IllegalComponentStateException("The window is showing on screen.");
3444 }
3445 this.locationByPlatform = locationByPlatform;
3446 }
3447 }
3448
3449 /**
3450 * Returns {@code true} if this Window will appear at the default location
3451 * for the native windowing system the next time this Window is made visible.
3452 * This method always returns {@code false} if the Window is showing on the
3453 * screen.
3454 *
3455 * @return whether this Window will appear at the default location
3456 * @see #setLocationByPlatform
3457 * @see #isShowing
3458 * @since 1.5
3459 */
3460 public boolean isLocationByPlatform() {
3461 synchronized (getTreeLock()) {
3462 return locationByPlatform;
3463 }
3464 }
3465
3466 /**
3467 * {@inheritDoc}
3468 * <p>
3469 * The {@code width} or {@code height} values
3470 * are automatically enlarged if either is less than
3471 * the minimum size as specified by previous call to
3472 * {@code setMinimumSize}.
3473 * <p>
3474 * The method changes the geometry-related data. Therefore,
3475 * the native windowing system may ignore such requests, or it may modify
3476 * the requested data, so that the {@code Window} object is placed and sized
3477 * in a way that corresponds closely to the desktop settings.
3478 *
3479 * @see #getBounds
3480 * @see #setLocation(int, int)
3481 * @see #setLocation(Point)
3482 * @see #setSize(int, int)
3483 * @see #setSize(Dimension)
3484 * @see #setMinimumSize
3485 * @see #setLocationByPlatform
3486 * @see #isLocationByPlatform
3487 * @since 1.6
3488 */
3489 public void setBounds(int x, int y, int width, int height) {
3490 synchronized (getTreeLock()) {
3491 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3492 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3493 {
3494 locationByPlatform = false;
3495 }
3496 super.setBounds(x, y, width, height);
3497 }
3498 }
3499
3500 /**
3501 * {@inheritDoc}
3502 * <p>
3503 * The {@code r.width} or {@code r.height} values
3504 * will be automatically enlarged if either is less than
3505 * the minimum size as specified by previous call to
3506 * {@code setMinimumSize}.
3507 * <p>
3508 * The method changes the geometry-related data. Therefore,
3509 * the native windowing system may ignore such requests, or it may modify
3510 * the requested data, so that the {@code Window} object is placed and sized
3511 * in a way that corresponds closely to the desktop settings.
3512 *
3513 * @see #getBounds
3514 * @see #setLocation(int, int)
3515 * @see #setLocation(Point)
3516 * @see #setSize(int, int)
3517 * @see #setSize(Dimension)
3518 * @see #setMinimumSize
3519 * @see #setLocationByPlatform
3520 * @see #isLocationByPlatform
3521 * @since 1.6
3522 */
3523 public void setBounds(Rectangle r) {
3524 setBounds(r.x, r.y, r.width, r.height);
3525 }
3526
3527 /**
3528 * Determines whether this component will be displayed on the screen.
3529 * @return {@code true} if the component and all of its ancestors
3530 * until a toplevel window are visible, {@code false} otherwise
3531 */
3532 boolean isRecursivelyVisible() {
3533 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3534 // We're overriding isRecursivelyVisible to implement this policy.
3535 return visible;
3536 }
3537
3538
3539 // ******************** SHAPES & TRANSPARENCY CODE ********************
3540
3541 /**
3542 * Returns the opacity of the window.
3543 *
3544 * @return the opacity of the window
3545 *
3546 * @see Window#setOpacity(float)
3547 * @see GraphicsDevice.WindowTranslucency
3548 *
3549 * @since 1.7
3550 */
3551 public float getOpacity() {
3552 synchronized (getTreeLock()) {
3553 return opacity;
3554 }
3555 }
3556
3557 /**
3558 * Sets the opacity of the window.
3559 * <p>
3560 * The opacity value is in the range [0..1]. Note that setting the opacity
3561 * level of 0 may or may not disable the mouse event handling on this
3562 * window. This is a platform-dependent behavior.
3563 * <p>
3564 * The following conditions must be met in order to set the opacity value
3565 * less than {@code 1.0f}:
3566 * <ul>
3567 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3568 * translucency must be supported by the underlying system
3569 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3570 * and {@link Dialog#setUndecorated})
3571 * <li>The window must not be in full-screen mode (see {@link
3572 * GraphicsDevice#setFullScreenWindow(Window)})
3573 * </ul>
3574 * <p>
3575 * If the requested opacity value is less than {@code 1.0f}, and any of the
3576 * above conditions are not met, the window opacity will not change,
3577 * and the {@code IllegalComponentStateException} will be thrown.
3578 * <p>
3579 * The translucency levels of individual pixels may also be effected by the
3580 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3581 * current shape of this window (see {@link #setShape(Shape)}).
3582 *
3583 * @param opacity the opacity level to set to the window
3584 *
3585 * @throws IllegalArgumentException if the opacity is out of the range
3586 * [0..1]
3587 * @throws IllegalComponentStateException if the window is decorated and
3588 * the opacity is less than {@code 1.0f}
3589 * @throws IllegalComponentStateException if the window is in full screen
3590 * mode, and the opacity is less than {@code 1.0f}
3591 * @throws UnsupportedOperationException if the {@code
3592 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3593 * translucency is not supported and the opacity is less than
3594 * {@code 1.0f}
3595 *
3596 * @see Window#getOpacity
3597 * @see Window#setBackground(Color)
3598 * @see Window#setShape(Shape)
3599 * @see Frame#isUndecorated
3600 * @see Dialog#isUndecorated
3601 * @see GraphicsDevice.WindowTranslucency
3602 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3603 *
3604 * @since 1.7
3605 */
3606 public void setOpacity(float opacity) {
3607 synchronized (getTreeLock()) {
3608 if (opacity < 0.0f || opacity > 1.0f) {
3609 throw new IllegalArgumentException(
3610 "The value of opacity should be in the range [0.0f .. 1.0f].");
3611 }
3612 if (opacity < 1.0f) {
3613 GraphicsConfiguration gc = getGraphicsConfiguration();
3614 GraphicsDevice gd = gc.getDevice();
3615 if (gc.getDevice().getFullScreenWindow() == this) {
3616 throw new IllegalComponentStateException(
3617 "Setting opacity for full-screen window is not supported.");
3618 }
3619 if (!gd.isWindowTranslucencySupported(
3620 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3621 {
3622 throw new UnsupportedOperationException(
3623 "TRANSLUCENT translucency is not supported.");
3624 }
3625 }
3626 this.opacity = opacity;
3627 WindowPeer peer = (WindowPeer)getPeer();
3628 if (peer != null) {
3629 peer.setOpacity(opacity);
3630 }
3631 }
3632 }
3633
3634 /**
3635 * Returns the shape of the window.
3636 *
3637 * The value returned by this method may not be the same as
3638 * previously set with {@code setShape(shape)}, but it is guaranteed
3639 * to represent the same shape.
3640 *
3641 * @return the shape of the window or {@code null} if no
3642 * shape is specified for the window
3643 *
3644 * @see Window#setShape(Shape)
3645 * @see GraphicsDevice.WindowTranslucency
3646 *
3647 * @since 1.7
3648 */
3649 public Shape getShape() {
3650 synchronized (getTreeLock()) {
3651 return shape == null ? null : new Path2D.Float(shape);
3652 }
3653 }
3654
3655 /**
3656 * Sets the shape of the window.
3657 * <p>
3658 * Setting a shape cuts off some parts of the window. Only the parts that
3659 * belong to the given {@link Shape} remain visible and clickable. If
3660 * the shape argument is {@code null}, this method restores the default
3661 * shape, making the window rectangular on most platforms.
3662 * <p>
3663 * The following conditions must be met to set a non-null shape:
3664 * <ul>
3665 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3666 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3667 * underlying system
3668 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3669 * and {@link Dialog#setUndecorated})
3670 * <li>The window must not be in full-screen mode (see {@link
3671 * GraphicsDevice#setFullScreenWindow(Window)})
3672 * </ul>
3673 * <p>
3674 * If the requested shape is not {@code null}, and any of the above
3675 * conditions are not met, the shape of this window will not change,
3676 * and either the {@code UnsupportedOperationException} or {@code
3677 * IllegalComponentStateException} will be thrown.
3678 * <p>
3679 * The translucency levels of individual pixels may also be effected by the
3680 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3681 * opacity value (see {@link #setOpacity(float)}). See {@link
3682 * GraphicsDevice.WindowTranslucency} for more details.
3683 *
3684 * @param shape the shape to set to the window
3685 *
3686 * @throws IllegalComponentStateException if the shape is not {@code
3687 * null} and the window is decorated
3688 * @throws IllegalComponentStateException if the shape is not {@code
3689 * null} and the window is in full-screen mode
3690 * @throws UnsupportedOperationException if the shape is not {@code
3691 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3692 * PERPIXEL_TRANSPARENT} translucency is not supported
3693 *
3694 * @see Window#getShape()
3695 * @see Window#setBackground(Color)
3696 * @see Window#setOpacity(float)
3697 * @see Frame#isUndecorated
3698 * @see Dialog#isUndecorated
3699 * @see GraphicsDevice.WindowTranslucency
3700 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3701 *
3702 * @since 1.7
3703 */
3704 public void setShape(Shape shape) {
3705 synchronized (getTreeLock()) {
3706 if (shape != null) {
3707 GraphicsConfiguration gc = getGraphicsConfiguration();
3708 GraphicsDevice gd = gc.getDevice();
3709 if (gc.getDevice().getFullScreenWindow() == this) {
3710 throw new IllegalComponentStateException(
3711 "Setting shape for full-screen window is not supported.");
3712 }
3713 if (!gd.isWindowTranslucencySupported(
3714 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3715 {
3716 throw new UnsupportedOperationException(
3717 "PERPIXEL_TRANSPARENT translucency is not supported.");
3718 }
3719 }
3720 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3721 WindowPeer peer = (WindowPeer)getPeer();
3722 if (peer != null) {
3723 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3724 }
3725 }
3726 }
3727
3728 /**
3729 * Gets the background color of this window.
3730 * <p>
3731 * Note that the alpha component of the returned color indicates whether
3732 * the window is in the non-opaque (per-pixel translucent) mode.
3733 *
3734 * @return this component's background color
3735 *
3736 * @see Window#setBackground(Color)
3737 * @see Window#isOpaque
3738 * @see GraphicsDevice.WindowTranslucency
3739 */
3740 @Override
3741 public Color getBackground() {
3742 return super.getBackground();
3743 }
3744
3745 /**
3746 * Sets the background color of this window.
3747 * <p>
3748 * If the windowing system supports the {@link
3749 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3750 * translucency, the alpha component of the given background color
3751 * may effect the mode of operation for this window: it indicates whether
3752 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3753 * (alpha is less than {@code 1.0f}). If the given background color is
3754 * {@code null}, the window is considered completely opaque.
3755 * <p>
3756 * All the following conditions must be met to enable the per-pixel
3757 * transparency mode for this window:
3758 * <ul>
3759 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3760 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3761 * device where this window is located
3762 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3763 * and {@link Dialog#setUndecorated})
3764 * <li>The window must not be in full-screen mode (see {@link
3765 * GraphicsDevice#setFullScreenWindow(Window)})
3766 * </ul>
3767 * <p>
3768 * If the alpha component of the requested background color is less than
3769 * {@code 1.0f}, and any of the above conditions are not met, the background
3770 * color of this window will not change, the alpha component of the given
3771 * background color will not affect the mode of operation for this window,
3772 * and either the {@code UnsupportedOperationException} or {@code
3773 * IllegalComponentStateException} will be thrown.
3774 * <p>
3775 * When the window is per-pixel translucent, the drawing sub-system
3776 * respects the alpha value of each individual pixel. If a pixel gets
3777 * painted with the alpha color component equal to zero, it becomes
3778 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3779 * pixel is fully opaque. Interim values of the alpha color component make
3780 * the pixel semi-transparent. In this mode, the background of the window
3781 * gets painted with the alpha value of the given background color. If the
3782 * alpha value of the argument of this method is equal to {@code 0}, the
3783 * background is not painted at all.
3784 * <p>
3785 * The actual level of translucency of a given pixel also depends on window
3786 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3787 * this window (see {@link #setShape(Shape)}).
3788 * <p>
3789 * Note that painting a pixel with the alpha value of {@code 0} may or may
3790 * not disable the mouse event handling on this pixel. This is a
3791 * platform-dependent behavior. To make sure the mouse events do not get
3792 * dispatched to a particular pixel, the pixel must be excluded from the
3793 * shape of the window.
3794 * <p>
3795 * Enabling the per-pixel translucency mode may change the graphics
3796 * configuration of this window due to the native platform requirements.
3797 *
3798 * @param bgColor the color to become this window's background color.
3799 *
3800 * @throws IllegalComponentStateException if the alpha value of the given
3801 * background color is less than {@code 1.0f} and the window is decorated
3802 * @throws IllegalComponentStateException if the alpha value of the given
3803 * background color is less than {@code 1.0f} and the window is in
3804 * full-screen mode
3805 * @throws UnsupportedOperationException if the alpha value of the given
3806 * background color is less than {@code 1.0f} and {@link
3807 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3808 * PERPIXEL_TRANSLUCENT} translucency is not supported
3809 *
3810 * @see Window#getBackground
3811 * @see Window#isOpaque
3812 * @see Window#setOpacity(float)
3813 * @see Window#setShape(Shape)
3814 * @see Frame#isUndecorated
3815 * @see Dialog#isUndecorated
3816 * @see GraphicsDevice.WindowTranslucency
3817 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3818 * @see GraphicsConfiguration#isTranslucencyCapable()
3819 */
3820 @Override
3821 public void setBackground(Color bgColor) {
3822 Color oldBg = getBackground();
3823 super.setBackground(bgColor);
3824 if (oldBg != null && oldBg.equals(bgColor)) {
3825 return;
3826 }
3827 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3828 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3829 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3830 GraphicsConfiguration gc = getGraphicsConfiguration();
3831 GraphicsDevice gd = gc.getDevice();
3832 if (gc.getDevice().getFullScreenWindow() == this) {
3833 throw new IllegalComponentStateException(
3834 "Making full-screen window non opaque is not supported.");
3835 }
3836 if (!gc.isTranslucencyCapable()) {
3837 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3838 if (capableGC == null) {
3839 throw new UnsupportedOperationException(
3840 "PERPIXEL_TRANSLUCENT translucency is not supported");
3841 }
3842 setGraphicsConfiguration(capableGC);
3843 }
3844 setLayersOpaque(this, false);
3845 } else if ((oldAlpha < 255) && (alpha == 255)) {
3846 setLayersOpaque(this, true);
3847 }
3848 WindowPeer peer = (WindowPeer)getPeer();
3849 if (peer != null) {
3850 peer.setOpaque(alpha == 255);
3851 }
3852 }
3853
3854 /**
3855 * Indicates if the window is currently opaque.
3856 * <p>
3857 * The method returns {@code false} if the background color of the window
3858 * is not {@code null} and the alpha component of the color is less than
3859 * {@code 1.0f}. The method returns {@code true} otherwise.
3860 *
3861 * @return {@code true} if the window is opaque, {@code false} otherwise
3862 *
3863 * @see Window#getBackground
3864 * @see Window#setBackground(Color)
3865 * @since 1.7
3866 */
3867 @Override
3868 public boolean isOpaque() {
3869 Color bg = getBackground();
3870 return bg != null ? bg.getAlpha() == 255 : true;
3871 }
3872
3873 private void updateWindow() {
3874 synchronized (getTreeLock()) {
3875 WindowPeer peer = (WindowPeer)getPeer();
3876 if (peer != null) {
3877 peer.updateWindow();
3878 }
3879 }
3880 }
3881
3882 /**
3883 * {@inheritDoc}
3884 *
3885 * @since 1.7
3886 */
3887 @Override
3888 public void paint(Graphics g) {
3889 if (!isOpaque()) {
3890 Graphics gg = g.create();
3891 try {
3892 if (gg instanceof Graphics2D) {
3893 gg.setColor(getBackground());
3894 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3895 gg.fillRect(0, 0, getWidth(), getHeight());
3896 }
3897 } finally {
3898 gg.dispose();
3899 }
3900 }
3901 super.paint(g);
3902 }
3903
3904 private static void setLayersOpaque(Component component, boolean isOpaque) {
3905 // Shouldn't use instanceof to avoid loading Swing classes
3906 // if it's a pure AWT application.
3907 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3908 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3909 javax.swing.JRootPane root = rpc.getRootPane();
3910 javax.swing.JLayeredPane lp = root.getLayeredPane();
3911 Container c = root.getContentPane();
3912 javax.swing.JComponent content =
3913 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3914 lp.setOpaque(isOpaque);
3915 root.setOpaque(isOpaque);
3916 if (content != null) {
3917 content.setOpaque(isOpaque);
3918
3919 // Iterate down one level to see whether we have a JApplet
3920 // (which is also a RootPaneContainer) which requires processing
3921 int numChildren = content.getComponentCount();
3922 if (numChildren > 0) {
3923 Component child = content.getComponent(0);
3924 // It's OK to use instanceof here because we've
3925 // already loaded the RootPaneContainer class by now
3926 if (child instanceof javax.swing.RootPaneContainer) {
3927 setLayersOpaque(child, isOpaque);
3928 }
3929 }
3930 }
3931 }
3932 }
3933
3934
3935 // ************************** MIXING CODE *******************************
3936
3937 // A window has an owner, but it does NOT have a container
3938 @Override
3939 final Container getContainer() {
3940 return null;
3941 }
3942
3943 /**
3944 * Applies the shape to the component
3945 * @param shape Shape to be applied to the component
3946 */
3947 @Override
3948 final void applyCompoundShape(Region shape) {
3949 // The shape calculated by mixing code is not intended to be applied
3950 // to windows or frames
3951 }
3952
3953 @Override
3954 final void applyCurrentShape() {
3955 // The shape calculated by mixing code is not intended to be applied
3956 // to windows or frames
3957 }
3958
3959 @Override
3960 final void mixOnReshaping() {
3961 // The shape calculated by mixing code is not intended to be applied
3962 // to windows or frames
3963 }
3964
3965 @Override
3966 final Point getLocationOnWindow() {
3967 return new Point(0, 0);
3968 }
3969
3970 // ****************** END OF MIXING CODE ********************************
3971
3972 /**
3973 * Limit the given double value with the given range.
3974 */
3975 private static double limit(double value, double min, double max) {
3976 value = Math.max(value, min);
3977 value = Math.min(value, max);
3978 return value;
3979 }
3980
3981 /**
3982 * Calculate the position of the security warning.
3983 *
3984 * This method gets the window location/size as reported by the native
3985 * system since the locally cached values may represent outdated data.
3986 *
3987 * The method is used from the native code, or via AWTAccessor.
3988 *
3989 * NOTE: this method is invoked on the toolkit thread, and therefore is not
3990 * supposed to become public/user-overridable.
3991 */
3992 private Point2D calculateSecurityWarningPosition(double x, double y,
3993 double w, double h)
3994 {
3995 // The position according to the spec of SecurityWarning.setPosition()
3996 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
3997 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
3998
3999 // First, make sure the warning is not too far from the window bounds
4000 wx = Window.limit(wx,
4001 x - securityWarningWidth - 2,
4002 x + w + 2);
4003 wy = Window.limit(wy,
4004 y - securityWarningHeight - 2,
4005 y + h + 2);
4006
4007 // Now make sure the warning window is visible on the screen
4008 GraphicsConfiguration graphicsConfig =
4009 getGraphicsConfiguration_NoClientCode();
4010 Rectangle screenBounds = graphicsConfig.getBounds();
4011 Insets screenInsets =
4012 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4013
4014 wx = Window.limit(wx,
4015 screenBounds.x + screenInsets.left,
4016 screenBounds.x + screenBounds.width - screenInsets.right
4017 - securityWarningWidth);
4018 wy = Window.limit(wy,
4019 screenBounds.y + screenInsets.top,
4020 screenBounds.y + screenBounds.height - screenInsets.bottom
4021 - securityWarningHeight);
4022
4023 return new Point2D.Double(wx, wy);
4024 }
4025
4026 static {
4027 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4028 public float getOpacity(Window window) {
4029 return window.opacity;
4030 }
4031 public void setOpacity(Window window, float opacity) {
4032 window.setOpacity(opacity);
4033 }
4034 public Shape getShape(Window window) {
4035 return window.getShape();
4036 }
4037 public void setShape(Window window, Shape shape) {
4038 window.setShape(shape);
4039 }
4040 public void setOpaque(Window window, boolean opaque) {
4041 Color bg = window.getBackground();
4042 if (bg == null) {
4043 bg = new Color(0, 0, 0, 0);
4044 }
4045 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4046 opaque ? 255 : 0));
4047 }
4048 public void updateWindow(Window window) {
4049 window.updateWindow();
4050 }
4051
4052 public Dimension getSecurityWarningSize(Window window) {
4053 return new Dimension(window.securityWarningWidth,
4054 window.securityWarningHeight);
4055 }
4056
4057 public void setSecurityWarningSize(Window window, int width, int height)
4058 {
4059 window.securityWarningWidth = width;
4060 window.securityWarningHeight = height;
4061 }
4062
4063 public void setSecurityWarningPosition(Window window,
4064 Point2D point, float alignmentX, float alignmentY)
4065 {
4066 window.securityWarningPointX = point.getX();
4067 window.securityWarningPointY = point.getY();
4068 window.securityWarningAlignmentX = alignmentX;
4069 window.securityWarningAlignmentY = alignmentY;
4070
4071 synchronized (window.getTreeLock()) {
4072 WindowPeer peer = (WindowPeer)window.getPeer();
4073 if (peer != null) {
4074 peer.repositionSecurityWarning();
4075 }
4076 }
4077 }
4078
4079 public Point2D calculateSecurityWarningPosition(Window window,
4080 double x, double y, double w, double h)
4081 {
4082 return window.calculateSecurityWarningPosition(x, y, w, h);
4083 }
4084
4085 public void setLWRequestStatus(Window changed, boolean status) {
4086 changed.syncLWRequests = status;
4087 }
4088
4089 public boolean isAutoRequestFocus(Window w) {
4090 return w.autoRequestFocus;
4091 }
4092
4093 public boolean isTrayIconWindow(Window w) {
4094 return w.isTrayIconWindow;
4095 }
4096
4097 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4098 w.isTrayIconWindow = isTrayIconWindow;
4099 }
4100 }); // WindowAccessor
4101 } // static
4102
4103 // a window doesn't need to be updated in the Z-order.
4104 @Override
4105 void updateZOrder() {}
4106
4107 } // class Window
4108
4109
4110 /**
4111 * This class is no longer used, but is maintained for Serialization
4112 * backward-compatibility.
4113 */
4114 class FocusManager implements java.io.Serializable {
4115 Container focusRoot;
4116 Component focusOwner;
4117
4118 /*
4119 * JDK 1.1 serialVersionUID
4120 */
4121 static final long serialVersionUID = 2491878825643557906L;
4122 }