1 /*
2 * Copyright (c) 1995, 2016, 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.peer.ComponentPeer;
33 import java.awt.peer.WindowPeer;
34 import java.beans.PropertyChangeListener;
35 import java.io.IOException;
36 import java.io.ObjectInputStream;
37 import java.io.ObjectOutputStream;
38 import java.io.OptionalDataException;
39 import java.io.Serializable;
40 import java.lang.ref.WeakReference;
41 import java.lang.reflect.InvocationTargetException;
42 import java.security.AccessController;
43 import java.util.ArrayList;
44 import java.util.Arrays;
45 import java.util.EventListener;
46 import java.util.Locale;
47 import java.util.ResourceBundle;
48 import java.util.Set;
49 import java.util.Vector;
50 import java.util.concurrent.atomic.AtomicBoolean;
51 import javax.accessibility.*;
52 import sun.awt.AWTAccessor;
53 import sun.awt.AWTPermissions;
54 import sun.awt.AppContext;
55 import sun.awt.DebugSettings;
56 import sun.awt.SunToolkit;
57 import sun.awt.util.IdentityArrayList;
58 import sun.java2d.pipe.Region;
59 import sun.security.action.GetPropertyAction;
60 import sun.util.logging.PlatformLogger;
61
62 /**
63 * A {@code Window} object is a top-level window with no borders and no
64 * menubar.
65 * The default layout for a window is {@code BorderLayout}.
66 * <p>
67 * A window must have either a frame, dialog, or another window defined as its
68 * owner when it's constructed.
69 * <p>
70 * In a multi-screen environment, you can create a {@code Window}
71 * on a different screen device by constructing the {@code Window}
72 * with {@link #Window(Window, GraphicsConfiguration)}. The
73 * {@code GraphicsConfiguration} object is one of the
74 * {@code GraphicsConfiguration} objects of the target screen device.
75 * <p>
76 * In a virtual device multi-screen environment in which the desktop
77 * area could span multiple physical screen devices, the bounds of all
78 * configurations are relative to the virtual device coordinate system.
79 * The origin of the virtual-coordinate system is at the upper left-hand
80 * corner of the primary physical screen. Depending on the location of
81 * the primary screen in the virtual device, negative coordinates are
82 * possible, as shown in the following figure.
83 * <p>
84 * <img src="doc-files/MultiScreen.gif"
85 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
86 * style="float:center; margin: 7px 10px;">
87 * <p>
88 * In such an environment, when calling {@code setLocation},
89 * you must pass a virtual coordinate to this method. Similarly,
90 * calling {@code getLocationOnScreen} on a {@code Window} returns
91 * virtual device coordinates. Call the {@code getBounds} method
92 * of a {@code GraphicsConfiguration} to find its origin in the virtual
93 * coordinate system.
94 * <p>
95 * The following code sets the location of a {@code Window}
96 * at (10, 10) relative to the origin of the physical screen
97 * of the corresponding {@code GraphicsConfiguration}. If the
98 * bounds of the {@code GraphicsConfiguration} is not taken
99 * into account, the {@code Window} location would be set
100 * at (10, 10) relative to the virtual-coordinate system and would appear
101 * on the primary physical screen, which might be different from the
102 * physical screen of the specified {@code GraphicsConfiguration}.
103 *
104 * <pre>
105 * Window w = new Window(Window owner, GraphicsConfiguration gc);
106 * Rectangle bounds = gc.getBounds();
107 * w.setLocation(10 + bounds.x, 10 + bounds.y);
108 * </pre>
109 *
110 * <p>
111 * Note: the location and size of top-level windows (including
112 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
113 * are under the control of the desktop's window management system.
114 * Calls to {@code setLocation}, {@code setSize}, and
115 * {@code setBounds} are requests (not directives) which are
116 * forwarded to the window management system. Every effort will be
117 * made to honor such requests. However, in some cases the window
118 * management system may ignore such requests, or modify the requested
119 * geometry in order to place and size the {@code Window} in a way
120 * that more closely matches the desktop settings.
121 * <p>
122 * Due to the asynchronous nature of native event handling, the results
123 * returned by {@code getBounds}, {@code getLocation},
124 * {@code getLocationOnScreen}, and {@code getSize} might not
125 * reflect the actual geometry of the Window on screen until the last
126 * request has been processed. During the processing of subsequent
127 * requests these values might change accordingly while the window
128 * management system fulfills the requests.
129 * <p>
130 * An application may set the size and location of an invisible
131 * {@code Window} arbitrarily, but the window management system may
132 * subsequently change its size and/or location when the
133 * {@code Window} is made visible. One or more {@code ComponentEvent}s
134 * will be generated to indicate the new geometry.
135 * <p>
136 * Windows are capable of generating the following WindowEvents:
137 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
138 *
139 * @author Sami Shaio
140 * @author Arthur van Hoff
141 * @see WindowEvent
142 * @see #addWindowListener
143 * @see java.awt.BorderLayout
144 * @since 1.0
145 */
146 public class Window extends Container implements Accessible {
147
148 /**
149 * Enumeration of available <i>window types</i>.
150 *
151 * A window type defines the generic visual appearance and behavior of a
152 * top-level window. For example, the type may affect the kind of
153 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
154 * <p>
155 * Some platforms may not fully support a certain window type. Depending on
156 * the level of support, some properties of the window type may be
157 * disobeyed.
158 *
159 * @see #getType
160 * @see #setType
161 * @since 1.7
162 */
163 public static enum Type {
164 /**
165 * Represents a <i>normal</i> window.
166 *
167 * This is the default type for objects of the {@code Window} class or
168 * its descendants. Use this type for regular top-level windows.
169 */
170 NORMAL,
171
172 /**
173 * Represents a <i>utility</i> window.
174 *
175 * A utility window is usually a small window such as a toolbar or a
176 * palette. The native system may render the window with smaller
177 * title-bar if the window is either a {@code Frame} or a {@code
178 * Dialog} object, and if it has its decorations enabled.
179 */
180 UTILITY,
181
182 /**
183 * Represents a <i>popup</i> window.
184 *
185 * A popup window is a temporary window such as a drop-down menu or a
186 * tooltip. On some platforms, windows of that type may be forcibly
187 * made undecorated even if they are instances of the {@code Frame} or
188 * {@code Dialog} class, and have decorations enabled.
189 */
190 POPUP
191 }
192
193 /**
194 * This represents the warning message that is
195 * to be displayed in a non secure window. ie :
196 * a window that has a security manager installed that denies
197 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
198 * This message can be displayed anywhere in the window.
199 *
200 * @serial
201 * @see #getWarningString
202 */
203 String warningString;
204
205 /**
206 * {@code icons} is the graphical way we can
207 * represent the frames and dialogs.
208 * {@code Window} can't display icon but it's
209 * being inherited by owned {@code Dialog}s.
210 *
211 * @serial
212 * @see #getIconImages
213 * @see #setIconImages
214 */
215 transient java.util.List<Image> icons;
216
217 /**
218 * Holds the reference to the component which last had focus in this window
219 * before it lost focus.
220 */
221 private transient Component temporaryLostComponent;
222
223 static boolean systemSyncLWRequests = false;
224 boolean syncLWRequests = false;
225 transient boolean beforeFirstShow = true;
226 private transient boolean disposing = false;
227 transient WindowDisposerRecord disposerRecord = null;
228
229 static final int OPENED = 0x01;
230
231 /**
232 * An Integer value representing the Window State.
233 *
234 * @serial
235 * @since 1.2
236 * @see #show
237 */
238 int state;
239
240 /**
241 * A boolean value representing Window always-on-top state
242 * @since 1.5
243 * @serial
244 * @see #setAlwaysOnTop
245 * @see #isAlwaysOnTop
246 */
247 private boolean alwaysOnTop;
248
249 /**
250 * Contains all the windows that have a peer object associated,
251 * i. e. between addNotify() and removeNotify() calls. The list
252 * of all Window instances can be obtained from AppContext object.
253 *
254 * @since 1.6
255 */
256 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
257
258 /**
259 * A vector containing all the windows this
260 * window currently owns.
261 * @since 1.2
262 * @see #getOwnedWindows
263 */
264 transient Vector<WeakReference<Window>> ownedWindowList =
265 new Vector<WeakReference<Window>>();
266
267 /*
268 * We insert a weak reference into the Vector of all Windows in AppContext
269 * instead of 'this' so that garbage collection can still take place
270 * correctly.
271 */
272 private transient WeakReference<Window> weakThis;
273
274 transient boolean showWithParent;
275
276 /**
277 * Contains the modal dialog that blocks this window, or null
278 * if the window is unblocked.
279 *
280 * @since 1.6
281 */
282 transient Dialog modalBlocker;
283
284 /**
285 * @serial
286 *
287 * @see java.awt.Dialog.ModalExclusionType
288 * @see #getModalExclusionType
289 * @see #setModalExclusionType
290 *
291 * @since 1.6
292 */
293 Dialog.ModalExclusionType modalExclusionType;
294
295 transient WindowListener windowListener;
296 transient WindowStateListener windowStateListener;
297 transient WindowFocusListener windowFocusListener;
298
299 transient InputContext inputContext;
300 private transient Object inputContextLock = new Object();
301
302 /**
303 * Unused. Maintained for serialization backward-compatibility.
304 *
305 * @serial
306 * @since 1.2
307 */
308 private FocusManager focusMgr;
309
310 /**
311 * Indicates whether this Window can become the focused Window.
312 *
313 * @serial
314 * @see #getFocusableWindowState
315 * @see #setFocusableWindowState
316 * @since 1.4
317 */
318 private boolean focusableWindowState = true;
319
320 /**
321 * Indicates whether this window should receive focus on
322 * subsequently being shown (with a call to {@code setVisible(true)}), or
323 * being moved to the front (with a call to {@code toFront()}).
324 *
325 * @serial
326 * @see #setAutoRequestFocus
327 * @see #isAutoRequestFocus
328 * @since 1.7
329 */
330 private volatile boolean autoRequestFocus = true;
331
332 /*
333 * Indicates that this window is being shown. This flag is set to true at
334 * the beginning of show() and to false at the end of show().
335 *
336 * @see #show()
337 * @see Dialog#shouldBlock
338 */
339 transient boolean isInShow = false;
340
341 /**
342 * The opacity level of the window
343 *
344 * @serial
345 * @see #setOpacity(float)
346 * @see #getOpacity()
347 * @since 1.7
348 */
349 private volatile float opacity = 1.0f;
350
351 /**
352 * The shape assigned to this window. This field is set to {@code null} if
353 * no shape is set (rectangular window).
354 *
355 * @serial
356 * @see #getShape()
357 * @see #setShape(Shape)
358 * @since 1.7
359 */
360 private Shape shape = null;
361
362 private static final String base = "win";
363 private static int nameCounter = 0;
364
365 /*
366 * JDK 1.1 serialVersionUID
367 */
368 private static final long serialVersionUID = 4497834738069338734L;
369
370 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
371
372 private static final boolean locationByPlatformProp;
373
374 transient boolean isTrayIconWindow = false;
375
376 /**
377 * These fields are initialized in the native peer code
378 * or via AWTAccessor's WindowAccessor.
379 */
380 private transient volatile int securityWarningWidth = 0;
381 private transient volatile int securityWarningHeight = 0;
382
383 /**
384 * These fields represent the desired location for the security
385 * warning if this window is untrusted.
386 * See com.sun.awt.SecurityWarning for more details.
387 */
388 private transient double securityWarningPointX = 2.0;
389 private transient double securityWarningPointY = 0.0;
390 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
391 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
392
393 static {
394 /* ensure that the necessary native libraries are loaded */
395 Toolkit.loadLibraries();
396 if (!GraphicsEnvironment.isHeadless()) {
397 initIDs();
398 }
399
400 String s = java.security.AccessController.doPrivileged(
401 new GetPropertyAction("java.awt.syncLWRequests"));
402 systemSyncLWRequests = (s != null && s.equals("true"));
403 s = java.security.AccessController.doPrivileged(
404 new GetPropertyAction("java.awt.Window.locationByPlatform"));
405 locationByPlatformProp = (s != null && s.equals("true"));
406 }
407
408 /**
409 * Initialize JNI field and method IDs for fields that may be
410 accessed from C.
411 */
412 private static native void initIDs();
413
414 /**
415 * Constructs a new, initially invisible window in default size with the
416 * specified {@code GraphicsConfiguration}.
417 * <p>
418 * If there is a security manager, then it is invoked to check
419 * {@code AWTPermission("showWindowWithoutWarningBanner")}
420 * to determine whether or not the window must be displayed with
421 * a warning banner.
422 *
423 * @param gc the {@code GraphicsConfiguration} of the target screen
424 * device. If {@code gc} is {@code null}, the system default
425 * {@code GraphicsConfiguration} is assumed
426 * @exception IllegalArgumentException if {@code gc}
427 * is not from a screen device
428 * @exception HeadlessException when
429 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
430 *
431 * @see java.awt.GraphicsEnvironment#isHeadless
432 */
433 Window(GraphicsConfiguration gc) {
434 init(gc);
435 }
436
437 transient Object anchor = new Object();
438 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
439 WeakReference<Window> owner;
440 final WeakReference<Window> weakThis;
441 final WeakReference<AppContext> context;
442
443 WindowDisposerRecord(AppContext context, Window victim) {
444 weakThis = victim.weakThis;
445 this.context = new WeakReference<AppContext>(context);
446 }
447
448 public void updateOwner() {
449 Window victim = weakThis.get();
450 owner = (victim == null)
451 ? null
452 : new WeakReference<Window>(victim.getOwner());
453 }
454
455 public void dispose() {
456 if (owner != null) {
457 Window parent = owner.get();
458 if (parent != null) {
459 parent.removeOwnedWindow(weakThis);
460 }
461 }
462 AppContext ac = context.get();
463 if (null != ac) {
464 Window.removeFromWindowList(ac, weakThis);
465 }
466 }
467 }
468
469 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
470 GraphicsEnvironment.checkHeadless();
471
472 if (gc == null) {
473 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
474 getDefaultScreenDevice().getDefaultConfiguration();
475 }
476 setGraphicsConfiguration(gc);
477
478 return gc;
479 }
480
481 private void init(GraphicsConfiguration gc) {
482 GraphicsEnvironment.checkHeadless();
483
484 syncLWRequests = systemSyncLWRequests;
485
486 weakThis = new WeakReference<Window>(this);
487 addToWindowList();
488
489 setWarningString();
490 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
491 this.visible = false;
492
493 gc = initGC(gc);
494
495 if (gc.getDevice().getType() !=
496 GraphicsDevice.TYPE_RASTER_SCREEN) {
497 throw new IllegalArgumentException("not a screen device");
498 }
499 setLayout(new BorderLayout());
500
501 /* offset the initial location with the original of the screen */
502 /* and any insets */
503 Rectangle screenBounds = gc.getBounds();
504 Insets screenInsets = getToolkit().getScreenInsets(gc);
505 int x = getX() + screenBounds.x + screenInsets.left;
506 int y = getY() + screenBounds.y + screenInsets.top;
507 if (x != this.x || y != this.y) {
508 setLocation(x, y);
509 /* reset after setLocation */
510 setLocationByPlatform(locationByPlatformProp);
511 }
512
513 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
514 disposerRecord = new WindowDisposerRecord(appContext, this);
515 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
516
517 SunToolkit.checkAndSetPolicy(this);
518 }
519
520 /**
521 * Constructs a new, initially invisible window in the default size.
522 * <p>
523 * If there is a security manager set, it is invoked to check
524 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
525 * If that check fails with a {@code SecurityException} then a warning
526 * banner is created.
527 *
528 * @exception HeadlessException when
529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
530 *
531 * @see java.awt.GraphicsEnvironment#isHeadless
532 */
533 Window() throws HeadlessException {
534 GraphicsEnvironment.checkHeadless();
535 init((GraphicsConfiguration)null);
536 }
537
538 /**
539 * Constructs a new, initially invisible window with the specified
540 * {@code Frame} as its owner. The window will not be focusable
541 * unless its owner is showing on the screen.
542 * <p>
543 * If there is a security manager set, it is invoked to check
544 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
545 * If that check fails with a {@code SecurityException} then a warning
546 * banner is created.
547 *
548 * @param owner the {@code Frame} to act as owner or {@code null}
549 * if this window has no owner
550 * @exception IllegalArgumentException if the {@code owner}'s
551 * {@code GraphicsConfiguration} is not from a screen device
552 * @exception HeadlessException when
553 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
554 *
555 * @see java.awt.GraphicsEnvironment#isHeadless
556 * @see #isShowing
557 */
558 public Window(Frame owner) {
559 this(owner == null ? (GraphicsConfiguration)null :
560 owner.getGraphicsConfiguration());
561 ownedInit(owner);
562 }
563
564 /**
565 * Constructs a new, initially invisible window with the specified
566 * {@code Window} as its owner. This window will not be focusable
567 * unless its nearest owning {@code Frame} or {@code Dialog}
568 * is showing on the screen.
569 * <p>
570 * If there is a security manager set, it is invoked to check
571 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
572 * If that check fails with a {@code SecurityException} then a
573 * warning banner is created.
574 *
575 * @param owner the {@code Window} to act as owner or
576 * {@code null} if this window has no owner
577 * @exception IllegalArgumentException if the {@code owner}'s
578 * {@code GraphicsConfiguration} is not from a screen device
579 * @exception HeadlessException when
580 * {@code GraphicsEnvironment.isHeadless()} returns
581 * {@code true}
582 *
583 * @see java.awt.GraphicsEnvironment#isHeadless
584 * @see #isShowing
585 *
586 * @since 1.2
587 */
588 public Window(Window owner) {
589 this(owner == null ? (GraphicsConfiguration)null :
590 owner.getGraphicsConfiguration());
591 ownedInit(owner);
592 }
593
594 /**
595 * Constructs a new, initially invisible window with the specified owner
596 * {@code Window} and a {@code GraphicsConfiguration}
597 * of a screen device. The Window will not be focusable unless
598 * its nearest owning {@code Frame} or {@code Dialog}
599 * is showing on the screen.
600 * <p>
601 * If there is a security manager set, it is invoked to check
602 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that
603 * check fails with a {@code SecurityException} then a warning banner
604 * is created.
605 *
606 * @param owner the window to act as owner or {@code null}
607 * if this window has no owner
608 * @param gc the {@code GraphicsConfiguration} of the target
609 * screen device; if {@code gc} is {@code null},
610 * the system default {@code GraphicsConfiguration} is assumed
611 * @exception IllegalArgumentException if {@code gc}
612 * is not from a screen device
613 * @exception HeadlessException when
614 * {@code GraphicsEnvironment.isHeadless()} returns
615 * {@code true}
616 *
617 * @see java.awt.GraphicsEnvironment#isHeadless
618 * @see GraphicsConfiguration#getBounds
619 * @see #isShowing
620 * @since 1.3
621 */
622 public Window(Window owner, GraphicsConfiguration gc) {
623 this(gc);
624 ownedInit(owner);
625 }
626
627 private void ownedInit(Window owner) {
628 this.parent = owner;
629 if (owner != null) {
630 owner.addOwnedWindow(weakThis);
631 if (owner.isAlwaysOnTop()) {
632 try {
633 setAlwaysOnTop(true);
634 } catch (SecurityException ignore) {
635 }
636 }
637 }
638
639 // WindowDisposerRecord requires a proper value of parent field.
640 disposerRecord.updateOwner();
641 }
642
643 /**
644 * Construct a name for this component. Called by getName() when the
645 * name is null.
646 */
647 String constructComponentName() {
648 synchronized (Window.class) {
649 return base + nameCounter++;
650 }
651 }
652
653 /**
654 * Returns the sequence of images to be displayed as the icon for this window.
655 * <p>
656 * This method returns a copy of the internally stored list, so all operations
657 * on the returned object will not affect the window's behavior.
658 *
659 * @return the copy of icon images' list for this window, or
660 * empty list if this window doesn't have icon images.
661 * @see #setIconImages
662 * @see #setIconImage(Image)
663 * @since 1.6
664 */
665 public java.util.List<Image> getIconImages() {
666 java.util.List<Image> icons = this.icons;
667 if (icons == null || icons.size() == 0) {
668 return new ArrayList<Image>();
669 }
670 return new ArrayList<Image>(icons);
671 }
672
673 /**
674 * Sets the sequence of images to be displayed as the icon
675 * for this window. Subsequent calls to {@code getIconImages} will
676 * always return a copy of the {@code icons} list.
677 * <p>
678 * Depending on the platform capabilities one or several images
679 * of different dimensions will be used as the window's icon.
680 * <p>
681 * The {@code icons} list can contain {@code MultiResolutionImage} images also.
682 * Suitable image depending on screen resolution is extracted from
683 * base {@code MultiResolutionImage} image and added to the icons list
684 * while base resolution image is removed from list.
685 * The {@code icons} list is scanned for the images of most
686 * appropriate dimensions from the beginning. If the list contains
687 * several images of the same size, the first will be used.
688 * <p>
689 * Ownerless windows with no icon specified use platform-default icon.
690 * The icon of an owned window may be inherited from the owner
691 * unless explicitly overridden.
692 * Setting the icon to {@code null} or empty list restores
693 * the default behavior.
694 * <p>
695 * Note : Native windowing systems may use different images of differing
696 * dimensions to represent a window, depending on the context (e.g.
697 * window decoration, window list, taskbar, etc.). They could also use
698 * just a single image for all contexts or no image at all.
699 *
700 * @param icons the list of icon images to be displayed.
701 * @see #getIconImages()
702 * @see #setIconImage(Image)
703 * @since 1.6
704 */
705 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
706 this.icons = (icons == null) ? new ArrayList<Image>() :
707 new ArrayList<Image>(icons);
708 WindowPeer peer = (WindowPeer)this.peer;
709 if (peer != null) {
710 peer.updateIconImages();
711 }
712 // Always send a property change event
713 firePropertyChange("iconImage", null, null);
714 }
715
716 /**
717 * Sets the image to be displayed as the icon for this window.
718 * <p>
719 * This method can be used instead of {@link #setIconImages setIconImages()}
720 * to specify a single image as a window's icon.
721 * <p>
722 * The following statement:
723 * <pre>
724 * setIconImage(image);
725 * </pre>
726 * is equivalent to:
727 * <pre>
728 * ArrayList<Image> imageList = new ArrayList<Image>();
729 * imageList.add(image);
730 * setIconImages(imageList);
731 * </pre>
732 * <p>
733 * Note : Native windowing systems may use different images of differing
734 * dimensions to represent a window, depending on the context (e.g.
735 * window decoration, window list, taskbar, etc.). They could also use
736 * just a single image for all contexts or no image at all.
737 *
738 * @param image the icon image to be displayed.
739 * @see #setIconImages
740 * @see #getIconImages()
741 * @since 1.6
742 */
743 public void setIconImage(Image image) {
744 ArrayList<Image> imageList = new ArrayList<Image>();
745 if (image != null) {
746 imageList.add(image);
747 }
748 setIconImages(imageList);
749 }
750
751 /**
752 * Makes this Window displayable by creating the connection to its
753 * native screen resource.
754 * This method is called internally by the toolkit and should
755 * not be called directly by programs.
756 * @see Component#isDisplayable
757 * @see Container#removeNotify
758 * @since 1.0
759 */
760 public void addNotify() {
761 synchronized (getTreeLock()) {
762 Container parent = this.parent;
763 if (parent != null && parent.peer == null) {
764 parent.addNotify();
765 }
766 if (peer == null) {
767 peer = getComponentFactory().createWindow(this);
768 }
769 synchronized (allWindows) {
770 allWindows.add(this);
771 }
772 super.addNotify();
773 }
774 }
775
776 /**
777 * {@inheritDoc}
778 */
779 public void removeNotify() {
780 synchronized (getTreeLock()) {
781 synchronized (allWindows) {
782 allWindows.remove(this);
783 }
784 super.removeNotify();
785 }
786 }
787
788 /**
789 * Causes this Window to be sized to fit the preferred size
790 * and layouts of its subcomponents. The resulting width and
791 * height of the window are automatically enlarged if either
792 * of dimensions is less than the minimum size as specified
793 * by the previous call to the {@code setMinimumSize} method.
794 * <p>
795 * If the window and/or its owner are not displayable yet,
796 * both of them are made displayable before calculating
797 * the preferred size. The Window is validated after its
798 * size is being calculated.
799 *
800 * @see Component#isDisplayable
801 * @see #setMinimumSize
802 */
803 @SuppressWarnings("deprecation")
804 public void pack() {
805 Container parent = this.parent;
806 if (parent != null && parent.peer == null) {
807 parent.addNotify();
808 }
809 if (peer == null) {
810 addNotify();
811 }
812 Dimension newSize = getPreferredSize();
813 if (peer != null) {
814 setClientSize(newSize.width, newSize.height);
815 }
816
817 if(beforeFirstShow) {
818 isPacked = true;
819 }
820
821 validateUnconditionally();
822 }
823
824 /**
825 * Sets the minimum size of this window to a constant
826 * value. Subsequent calls to {@code getMinimumSize}
827 * will always return this value. If current window's
828 * size is less than {@code minimumSize} the size of the
829 * window is automatically enlarged to honor the minimum size.
830 * <p>
831 * If the {@code setSize} or {@code setBounds} methods
832 * are called afterwards with a width or height less than
833 * that was specified by the {@code setMinimumSize} method
834 * the window is automatically enlarged to meet
835 * the {@code minimumSize} value. The {@code minimumSize}
836 * value also affects the behaviour of the {@code pack} method.
837 * <p>
838 * The default behavior is restored by setting the minimum size
839 * parameter to the {@code null} value.
840 * <p>
841 * Resizing operation may be restricted if the user tries
842 * to resize window below the {@code minimumSize} value.
843 * This behaviour is platform-dependent.
844 *
845 * @param minimumSize the new minimum size of this window
846 * @see Component#setMinimumSize
847 * @see #getMinimumSize
848 * @see #isMinimumSizeSet
849 * @see #setSize(Dimension)
850 * @see #pack
851 * @since 1.6
852 */
853 public void setMinimumSize(Dimension minimumSize) {
854 synchronized (getTreeLock()) {
855 super.setMinimumSize(minimumSize);
856 Dimension size = getSize();
857 if (isMinimumSizeSet()) {
858 if (size.width < minimumSize.width || size.height < minimumSize.height) {
859 int nw = Math.max(width, minimumSize.width);
860 int nh = Math.max(height, minimumSize.height);
861 setSize(nw, nh);
862 }
863 }
864 if (peer != null) {
865 ((WindowPeer)peer).updateMinimumSize();
866 }
867 }
868 }
869
870 /**
871 * {@inheritDoc}
872 * <p>
873 * The {@code d.width} and {@code d.height} values
874 * are automatically enlarged if either is less than
875 * the minimum size as specified by previous call to
876 * {@code setMinimumSize}.
877 * <p>
878 * The method changes the geometry-related data. Therefore,
879 * the native windowing system may ignore such requests, or it may modify
880 * the requested data, so that the {@code Window} object is placed and sized
881 * in a way that corresponds closely to the desktop settings.
882 *
883 * @see #getSize
884 * @see #setBounds
885 * @see #setMinimumSize
886 * @since 1.6
887 */
888 public void setSize(Dimension d) {
889 super.setSize(d);
890 }
891
892 /**
893 * {@inheritDoc}
894 * <p>
895 * The {@code width} and {@code height} values
896 * are automatically enlarged if either is less than
897 * the minimum size as specified by previous call to
898 * {@code setMinimumSize}.
899 * <p>
900 * The method changes the geometry-related data. Therefore,
901 * the native windowing system may ignore such requests, or it may modify
902 * the requested data, so that the {@code Window} object is placed and sized
903 * in a way that corresponds closely to the desktop settings.
904 *
905 * @see #getSize
906 * @see #setBounds
907 * @see #setMinimumSize
908 * @since 1.6
909 */
910 public void setSize(int width, int height) {
911 super.setSize(width, height);
912 }
913
914 /**
915 * {@inheritDoc}
916 * <p>
917 * The method changes the geometry-related data. Therefore,
918 * the native windowing system may ignore such requests, or it may modify
919 * the requested data, so that the {@code Window} object is placed and sized
920 * in a way that corresponds closely to the desktop settings.
921 */
922 @Override
923 public void setLocation(int x, int y) {
924 super.setLocation(x, y);
925 }
926
927 /**
928 * {@inheritDoc}
929 * <p>
930 * The method changes the geometry-related data. Therefore,
931 * the native windowing system may ignore such requests, or it may modify
932 * the requested data, so that the {@code Window} object is placed and sized
933 * in a way that corresponds closely to the desktop settings.
934 */
935 @Override
936 public void setLocation(Point p) {
937 super.setLocation(p);
938 }
939
940 /**
941 * @deprecated As of JDK version 1.1,
942 * replaced by {@code setBounds(int, int, int, int)}.
943 */
944 @Deprecated
945 public void reshape(int x, int y, int width, int height) {
946 if (isMinimumSizeSet()) {
947 Dimension minSize = getMinimumSize();
948 if (width < minSize.width) {
949 width = minSize.width;
950 }
951 if (height < minSize.height) {
952 height = minSize.height;
953 }
954 }
955 super.reshape(x, y, width, height);
956 }
957
958 void setClientSize(int w, int h) {
959 synchronized (getTreeLock()) {
960 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
961 setBounds(x, y, w, h);
962 }
963 }
964
965 private static final AtomicBoolean
966 beforeFirstWindowShown = new AtomicBoolean(true);
967
968 final void closeSplashScreen() {
969 if (isTrayIconWindow) {
970 return;
971 }
972 if (beforeFirstWindowShown.getAndSet(false)) {
973 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
974 // the object if it hasn't been requested by user code explicitly
975 SunToolkit.closeSplashScreen();
976 SplashScreen.markClosed();
977 }
978 }
979
980 /**
981 * Shows or hides this {@code Window} depending on the value of parameter
982 * {@code b}.
983 * <p>
984 * If the method shows the window then the window is also made
985 * focused under the following conditions:
986 * <ul>
987 * <li> The {@code Window} meets the requirements outlined in the
988 * {@link #isFocusableWindow} method.
989 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
990 * <li> Native windowing system allows the {@code Window} to get focused.
991 * </ul>
992 * There is an exception for the second condition (the value of the
993 * {@code autoRequestFocus} property). The property is not taken into account if the
994 * window is a modal dialog, which blocks the currently focused window.
995 * <p>
996 * Developers must never assume that the window is the focused or active window
997 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
998 * @param b if {@code true}, makes the {@code Window} visible,
999 * otherwise hides the {@code Window}.
1000 * If the {@code Window} and/or its owner
1001 * are not yet displayable, both are made displayable. The
1002 * {@code Window} will be validated prior to being made visible.
1003 * If the {@code Window} is already visible, this will bring the
1004 * {@code Window} to the front.<p>
1005 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1006 * of its owned children.
1007 * The {@code Window} and its subcomponents can be made visible again
1008 * with a call to {@code #setVisible(true)}.
1009 * @see java.awt.Component#isDisplayable
1010 * @see java.awt.Component#setVisible
1011 * @see java.awt.Window#toFront
1012 * @see java.awt.Window#dispose
1013 * @see java.awt.Window#setAutoRequestFocus
1014 * @see java.awt.Window#isFocusableWindow
1015 */
1016 public void setVisible(boolean b) {
1017 super.setVisible(b);
1018 }
1019
1020 /**
1021 * Makes the Window visible. If the Window and/or its owner
1022 * are not yet displayable, both are made displayable. The
1023 * Window will be validated prior to being made visible.
1024 * If the Window is already visible, this will bring the Window
1025 * to the front.
1026 * @see Component#isDisplayable
1027 * @see #toFront
1028 * @deprecated As of JDK version 1.5, replaced by
1029 * {@link #setVisible(boolean)}.
1030 */
1031 @Deprecated
1032 public void show() {
1033 if (peer == null) {
1034 addNotify();
1035 }
1036 validateUnconditionally();
1037
1038 isInShow = true;
1039 if (visible) {
1040 toFront();
1041 } else {
1042 beforeFirstShow = false;
1043 closeSplashScreen();
1044 Dialog.checkShouldBeBlocked(this);
1045 super.show();
1046 locationByPlatform = false;
1047 for (int i = 0; i < ownedWindowList.size(); i++) {
1048 Window child = ownedWindowList.elementAt(i).get();
1049 if ((child != null) && child.showWithParent) {
1050 child.show();
1051 child.showWithParent = false;
1052 } // endif
1053 } // endfor
1054 if (!isModalBlocked()) {
1055 updateChildrenBlocking();
1056 } else {
1057 // fix for 6532736: after this window is shown, its blocker
1058 // should be raised to front
1059 modalBlocker.toFront_NoClientCode();
1060 }
1061 if (this instanceof Frame || this instanceof Dialog) {
1062 updateChildFocusableWindowState(this);
1063 }
1064 }
1065 isInShow = false;
1066
1067 // If first time shown, generate WindowOpened event
1068 if ((state & OPENED) == 0) {
1069 postWindowEvent(WindowEvent.WINDOW_OPENED);
1070 state |= OPENED;
1071 }
1072 }
1073
1074 static void updateChildFocusableWindowState(Window w) {
1075 if (w.peer != null && w.isShowing()) {
1076 ((WindowPeer)w.peer).updateFocusableWindowState();
1077 }
1078 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1079 Window child = w.ownedWindowList.elementAt(i).get();
1080 if (child != null) {
1081 updateChildFocusableWindowState(child);
1082 }
1083 }
1084 }
1085
1086 synchronized void postWindowEvent(int id) {
1087 if (windowListener != null
1088 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1089 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1090 WindowEvent e = new WindowEvent(this, id);
1091 Toolkit.getEventQueue().postEvent(e);
1092 }
1093 }
1094
1095 /**
1096 * Hide this Window, its subcomponents, and all of its owned children.
1097 * The Window and its subcomponents can be made visible again
1098 * with a call to {@code show}.
1099 * @see #show
1100 * @see #dispose
1101 * @deprecated As of JDK version 1.5, replaced by
1102 * {@link #setVisible(boolean)}.
1103 */
1104 @Deprecated
1105 public void hide() {
1106 synchronized(ownedWindowList) {
1107 for (int i = 0; i < ownedWindowList.size(); i++) {
1108 Window child = ownedWindowList.elementAt(i).get();
1109 if ((child != null) && child.visible) {
1110 child.hide();
1111 child.showWithParent = true;
1112 }
1113 }
1114 }
1115 if (isModalBlocked()) {
1116 modalBlocker.unblockWindow(this);
1117 }
1118 super.hide();
1119 locationByPlatform = false;
1120 }
1121
1122 final void clearMostRecentFocusOwnerOnHide() {
1123 /* do nothing */
1124 }
1125
1126 /**
1127 * Releases all of the native screen resources used by this
1128 * {@code Window}, its subcomponents, and all of its owned
1129 * children. That is, the resources for these {@code Component}s
1130 * will be destroyed, any memory they consume will be returned to the
1131 * OS, and they will be marked as undisplayable.
1132 * <p>
1133 * The {@code Window} and its subcomponents can be made displayable
1134 * again by rebuilding the native resources with a subsequent call to
1135 * {@code pack} or {@code show}. The states of the recreated
1136 * {@code Window} and its subcomponents will be identical to the
1137 * states of these objects at the point where the {@code Window}
1138 * was disposed (not accounting for additional modifications between
1139 * those actions).
1140 * <p>
1141 * <b>Note</b>: When the last displayable window
1142 * within the Java virtual machine (VM) is disposed of, the VM may
1143 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1144 * AWT Threading Issues</a> for more information.
1145 * @see Component#isDisplayable
1146 * @see #pack
1147 * @see #show
1148 */
1149 public void dispose() {
1150 doDispose();
1151 }
1152
1153 /*
1154 * Fix for 4872170.
1155 * If dispose() is called on parent then its children have to be disposed as well
1156 * as reported in javadoc. So we need to implement this functionality even if a
1157 * child overrides dispose() in a wrong way without calling super.dispose().
1158 */
1159 void disposeImpl() {
1160 dispose();
1161 if (peer != null) {
1162 doDispose();
1163 }
1164 }
1165
1166 void doDispose() {
1167 class DisposeAction implements Runnable {
1168 public void run() {
1169 disposing = true;
1170 try {
1171 // Check if this window is the fullscreen window for the
1172 // device. Exit the fullscreen mode prior to disposing
1173 // of the window if that's the case.
1174 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1175 if (gd.getFullScreenWindow() == Window.this) {
1176 gd.setFullScreenWindow(null);
1177 }
1178
1179 Object[] ownedWindowArray;
1180 synchronized(ownedWindowList) {
1181 ownedWindowArray = new Object[ownedWindowList.size()];
1182 ownedWindowList.copyInto(ownedWindowArray);
1183 }
1184 for (int i = 0; i < ownedWindowArray.length; i++) {
1185 Window child = (Window) (((WeakReference)
1186 (ownedWindowArray[i])).get());
1187 if (child != null) {
1188 child.disposeImpl();
1189 }
1190 }
1191 hide();
1192 beforeFirstShow = true;
1193 removeNotify();
1194 synchronized (inputContextLock) {
1195 if (inputContext != null) {
1196 inputContext.dispose();
1197 inputContext = null;
1198 }
1199 }
1200 clearCurrentFocusCycleRootOnHide();
1201 } finally {
1202 disposing = false;
1203 }
1204 }
1205 }
1206 boolean fireWindowClosedEvent = isDisplayable();
1207 DisposeAction action = new DisposeAction();
1208 if (EventQueue.isDispatchThread()) {
1209 action.run();
1210 }
1211 else {
1212 try {
1213 EventQueue.invokeAndWait(this, action);
1214 }
1215 catch (InterruptedException e) {
1216 System.err.println("Disposal was interrupted:");
1217 e.printStackTrace();
1218 }
1219 catch (InvocationTargetException e) {
1220 System.err.println("Exception during disposal:");
1221 e.printStackTrace();
1222 }
1223 }
1224 // Execute outside the Runnable because postWindowEvent is
1225 // synchronized on (this). We don't need to synchronize the call
1226 // on the EventQueue anyways.
1227 if (fireWindowClosedEvent) {
1228 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1229 }
1230 }
1231
1232 /*
1233 * Should only be called while holding the tree lock.
1234 * It's overridden here because parent == owner in Window,
1235 * and we shouldn't adjust counter on owner
1236 */
1237 void adjustListeningChildrenOnParent(long mask, int num) {
1238 }
1239
1240 // Should only be called while holding tree lock
1241 void adjustDescendantsOnParent(int num) {
1242 // do nothing since parent == owner and we shouldn't
1243 // adjust counter on owner
1244 }
1245
1246 /**
1247 * If this Window is visible, brings this Window to the front and may make
1248 * it the focused Window.
1249 * <p>
1250 * Places this Window at the top of the stacking order and shows it in
1251 * front of any other Windows in this VM. No action will take place if this
1252 * Window is not visible. Some platforms do not allow Windows which own
1253 * other Windows to appear on top of those owned Windows. Some platforms
1254 * may not permit this VM to place its Windows above windows of native
1255 * applications, or Windows of other VMs. This permission may depend on
1256 * whether a Window in this VM is already focused. Every attempt will be
1257 * made to move this Window as high as possible in the stacking order;
1258 * however, developers should not assume that this method will move this
1259 * Window above all other windows in every situation.
1260 * <p>
1261 * Developers must never assume that this Window is the focused or active
1262 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1263 * event. On platforms where the top-most window is the focused window, this
1264 * method will <b>probably</b> focus this Window (if it is not already focused)
1265 * under the following conditions:
1266 * <ul>
1267 * <li> The window meets the requirements outlined in the
1268 * {@link #isFocusableWindow} method.
1269 * <li> The window's property {@code autoRequestFocus} is of the
1270 * {@code true} value.
1271 * <li> Native windowing system allows the window to get focused.
1272 * </ul>
1273 * On platforms where the stacking order does not typically affect the focused
1274 * window, this method will <b>probably</b> leave the focused and active
1275 * Windows unchanged.
1276 * <p>
1277 * If this method causes this Window to be focused, and this Window is a
1278 * Frame or a Dialog, it will also become activated. If this Window is
1279 * focused, but it is not a Frame or a Dialog, then the first Frame or
1280 * Dialog that is an owner of this Window will be activated.
1281 * <p>
1282 * If this window is blocked by modal dialog, then the blocking dialog
1283 * is brought to the front and remains above the blocked window.
1284 *
1285 * @see #toBack
1286 * @see #setAutoRequestFocus
1287 * @see #isFocusableWindow
1288 */
1289 public void toFront() {
1290 toFront_NoClientCode();
1291 }
1292
1293 // This functionality is implemented in a final package-private method
1294 // to insure that it cannot be overridden by client subclasses.
1295 final void toFront_NoClientCode() {
1296 if (visible) {
1297 WindowPeer peer = (WindowPeer)this.peer;
1298 if (peer != null) {
1299 peer.toFront();
1300 }
1301 if (isModalBlocked()) {
1302 modalBlocker.toFront_NoClientCode();
1303 }
1304 }
1305 }
1306
1307 /**
1308 * If this Window is visible, sends this Window to the back and may cause
1309 * it to lose focus or activation if it is the focused or active Window.
1310 * <p>
1311 * Places this Window at the bottom of the stacking order and shows it
1312 * behind any other Windows in this VM. No action will take place is this
1313 * Window is not visible. Some platforms do not allow Windows which are
1314 * owned by other Windows to appear below their owners. Every attempt will
1315 * be made to move this Window as low as possible in the stacking order;
1316 * however, developers should not assume that this method will move this
1317 * Window below all other windows in every situation.
1318 * <p>
1319 * Because of variations in native windowing systems, no guarantees about
1320 * changes to the focused and active Windows can be made. Developers must
1321 * never assume that this Window is no longer the focused or active Window
1322 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1323 * event. On platforms where the top-most window is the focused window,
1324 * this method will <b>probably</b> cause this Window to lose focus. In
1325 * that case, the next highest, focusable Window in this VM will receive
1326 * focus. On platforms where the stacking order does not typically affect
1327 * the focused window, this method will <b>probably</b> leave the focused
1328 * and active Windows unchanged.
1329 *
1330 * @see #toFront
1331 */
1332 public void toBack() {
1333 toBack_NoClientCode();
1334 }
1335
1336 // This functionality is implemented in a final package-private method
1337 // to insure that it cannot be overridden by client subclasses.
1338 final void toBack_NoClientCode() {
1339 if(isAlwaysOnTop()) {
1340 try {
1341 setAlwaysOnTop(false);
1342 }catch(SecurityException e) {
1343 }
1344 }
1345 if (visible) {
1346 WindowPeer peer = (WindowPeer)this.peer;
1347 if (peer != null) {
1348 peer.toBack();
1349 }
1350 }
1351 }
1352
1353 /**
1354 * Returns the toolkit of this frame.
1355 * @return the toolkit of this window.
1356 * @see Toolkit
1357 * @see Toolkit#getDefaultToolkit
1358 * @see Component#getToolkit
1359 */
1360 public Toolkit getToolkit() {
1361 return Toolkit.getDefaultToolkit();
1362 }
1363
1364 /**
1365 * Gets the warning string that is displayed with this window.
1366 * If this window is insecure, the warning string is displayed
1367 * somewhere in the visible area of the window. A window is
1368 * insecure if there is a security manager and the security
1369 * manager denies
1370 * {@code AWTPermission("showWindowWithoutWarningBanner")}.
1371 * <p>
1372 * If the window is secure, then {@code getWarningString}
1373 * returns {@code null}. If the window is insecure, this
1374 * method checks for the system property
1375 * {@code awt.appletWarning}
1376 * and returns the string value of that property.
1377 * @return the warning string for this window.
1378 */
1379 public final String getWarningString() {
1380 return warningString;
1381 }
1382
1383 private void setWarningString() {
1384 warningString = null;
1385 SecurityManager sm = System.getSecurityManager();
1386 if (sm != null) {
1387 try {
1388 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION);
1389 } catch (SecurityException se) {
1390 // make sure the privileged action is only
1391 // for getting the property! We don't want the
1392 // above checkPermission call to always succeed!
1393 warningString = AccessController.doPrivileged(
1394 new GetPropertyAction("awt.appletWarning",
1395 "Java Applet Window"));
1396 }
1397 }
1398 }
1399
1400 /**
1401 * Gets the {@code Locale} object that is associated
1402 * with this window, if the locale has been set.
1403 * If no locale has been set, then the default locale
1404 * is returned.
1405 * @return the locale that is set for this window.
1406 * @see java.util.Locale
1407 * @since 1.1
1408 */
1409 public Locale getLocale() {
1410 if (this.locale == null) {
1411 return Locale.getDefault();
1412 }
1413 return this.locale;
1414 }
1415
1416 /**
1417 * Gets the input context for this window. A window always has an input context,
1418 * which is shared by subcomponents unless they create and set their own.
1419 * @see Component#getInputContext
1420 * @since 1.2
1421 */
1422 public InputContext getInputContext() {
1423 synchronized (inputContextLock) {
1424 if (inputContext == null) {
1425 inputContext = InputContext.getInstance();
1426 }
1427 }
1428 return inputContext;
1429 }
1430
1431 /**
1432 * Set the cursor image to a specified cursor.
1433 * <p>
1434 * The method may have no visual effect if the Java platform
1435 * implementation and/or the native system do not support
1436 * changing the mouse cursor shape.
1437 * @param cursor One of the constants defined
1438 * by the {@code Cursor} class. If this parameter is null
1439 * then the cursor for this window will be set to the type
1440 * Cursor.DEFAULT_CURSOR.
1441 * @see Component#getCursor
1442 * @see Cursor
1443 * @since 1.1
1444 */
1445 public void setCursor(Cursor cursor) {
1446 if (cursor == null) {
1447 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1448 }
1449 super.setCursor(cursor);
1450 }
1451
1452 /**
1453 * Returns the owner of this window.
1454 *
1455 * @return the owner of this window
1456 * @since 1.2
1457 */
1458 public Window getOwner() {
1459 return getOwner_NoClientCode();
1460 }
1461 final Window getOwner_NoClientCode() {
1462 return (Window)parent;
1463 }
1464
1465 /**
1466 * Return an array containing all the windows this
1467 * window currently owns.
1468 *
1469 * @return the array of all the owned windows
1470 * @since 1.2
1471 */
1472 public Window[] getOwnedWindows() {
1473 return getOwnedWindows_NoClientCode();
1474 }
1475 final Window[] getOwnedWindows_NoClientCode() {
1476 Window realCopy[];
1477
1478 synchronized(ownedWindowList) {
1479 // Recall that ownedWindowList is actually a Vector of
1480 // WeakReferences and calling get() on one of these references
1481 // may return null. Make two arrays-- one the size of the
1482 // Vector (fullCopy with size fullSize), and one the size of
1483 // all non-null get()s (realCopy with size realSize).
1484 int fullSize = ownedWindowList.size();
1485 int realSize = 0;
1486 Window fullCopy[] = new Window[fullSize];
1487
1488 for (int i = 0; i < fullSize; i++) {
1489 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1490
1491 if (fullCopy[realSize] != null) {
1492 realSize++;
1493 }
1494 }
1495
1496 if (fullSize != realSize) {
1497 realCopy = Arrays.copyOf(fullCopy, realSize);
1498 } else {
1499 realCopy = fullCopy;
1500 }
1501 }
1502
1503 return realCopy;
1504 }
1505
1506 boolean isModalBlocked() {
1507 return modalBlocker != null;
1508 }
1509
1510 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1511 this.modalBlocker = blocked ? blocker : null;
1512 if (peerCall) {
1513 WindowPeer peer = (WindowPeer)this.peer;
1514 if (peer != null) {
1515 peer.setModalBlocked(blocker, blocked);
1516 }
1517 }
1518 }
1519
1520 Dialog getModalBlocker() {
1521 return modalBlocker;
1522 }
1523
1524 /*
1525 * Returns a list of all displayable Windows, i. e. all the
1526 * Windows which peer is not null.
1527 *
1528 * @see #addNotify
1529 * @see #removeNotify
1530 */
1531 static IdentityArrayList<Window> getAllWindows() {
1532 synchronized (allWindows) {
1533 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1534 v.addAll(allWindows);
1535 return v;
1536 }
1537 }
1538
1539 static IdentityArrayList<Window> getAllUnblockedWindows() {
1540 synchronized (allWindows) {
1541 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1542 for (int i = 0; i < allWindows.size(); i++) {
1543 Window w = allWindows.get(i);
1544 if (!w.isModalBlocked()) {
1545 unblocked.add(w);
1546 }
1547 }
1548 return unblocked;
1549 }
1550 }
1551
1552 private static Window[] getWindows(AppContext appContext) {
1553 synchronized (Window.class) {
1554 Window realCopy[];
1555 @SuppressWarnings("unchecked")
1556 Vector<WeakReference<Window>> windowList =
1557 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1558 if (windowList != null) {
1559 int fullSize = windowList.size();
1560 int realSize = 0;
1561 Window fullCopy[] = new Window[fullSize];
1562 for (int i = 0; i < fullSize; i++) {
1563 Window w = windowList.get(i).get();
1564 if (w != null) {
1565 fullCopy[realSize++] = w;
1566 }
1567 }
1568 if (fullSize != realSize) {
1569 realCopy = Arrays.copyOf(fullCopy, realSize);
1570 } else {
1571 realCopy = fullCopy;
1572 }
1573 } else {
1574 realCopy = new Window[0];
1575 }
1576 return realCopy;
1577 }
1578 }
1579
1580 /**
1581 * Returns an array of all {@code Window}s, both owned and ownerless,
1582 * created by this application.
1583 * If called from an applet, the array includes only the {@code Window}s
1584 * accessible by that applet.
1585 * <p>
1586 * <b>Warning:</b> this method may return system created windows, such
1587 * as a print dialog. Applications should not assume the existence of
1588 * these dialogs, nor should an application assume anything about these
1589 * dialogs such as component positions, {@code LayoutManager}s
1590 * or serialization.
1591 *
1592 * @return the array of all the {@code Window}s created by the application
1593 * @see Frame#getFrames
1594 * @see Window#getOwnerlessWindows
1595 *
1596 * @since 1.6
1597 */
1598 public static Window[] getWindows() {
1599 return getWindows(AppContext.getAppContext());
1600 }
1601
1602 /**
1603 * Returns an array of all {@code Window}s created by this application
1604 * that have no owner. They include {@code Frame}s and ownerless
1605 * {@code Dialog}s and {@code Window}s.
1606 * If called from an applet, the array includes only the {@code Window}s
1607 * accessible by that applet.
1608 * <p>
1609 * <b>Warning:</b> this method may return system created windows, such
1610 * as a print dialog. Applications should not assume the existence of
1611 * these dialogs, nor should an application assume anything about these
1612 * dialogs such as component positions, {@code LayoutManager}s
1613 * or serialization.
1614 *
1615 * @return the array of all the ownerless {@code Window}s
1616 * created by this application
1617 * @see Frame#getFrames
1618 * @see Window#getWindows()
1619 *
1620 * @since 1.6
1621 */
1622 public static Window[] getOwnerlessWindows() {
1623 Window[] allWindows = Window.getWindows();
1624
1625 int ownerlessCount = 0;
1626 for (Window w : allWindows) {
1627 if (w.getOwner() == null) {
1628 ownerlessCount++;
1629 }
1630 }
1631
1632 Window[] ownerless = new Window[ownerlessCount];
1633 int c = 0;
1634 for (Window w : allWindows) {
1635 if (w.getOwner() == null) {
1636 ownerless[c++] = w;
1637 }
1638 }
1639
1640 return ownerless;
1641 }
1642
1643 Window getDocumentRoot() {
1644 synchronized (getTreeLock()) {
1645 Window w = this;
1646 while (w.getOwner() != null) {
1647 w = w.getOwner();
1648 }
1649 return w;
1650 }
1651 }
1652
1653 /**
1654 * Specifies the modal exclusion type for this window. If a window is modal
1655 * excluded, it is not blocked by some modal dialogs. See {@link
1656 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1657 * possible modal exclusion types.
1658 * <p>
1659 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1660 * <p>
1661 * Note: changing the modal exclusion type for a visible window may have no
1662 * effect until it is hidden and then shown again.
1663 *
1664 * @param exclusionType the modal exclusion type for this window; a {@code null}
1665 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1666 * NO_EXCLUDE}
1667 * @throws SecurityException if the calling thread does not have permission
1668 * to set the modal exclusion property to the window with the given
1669 * {@code exclusionType}
1670 * @see java.awt.Dialog.ModalExclusionType
1671 * @see java.awt.Window#getModalExclusionType
1672 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1673 *
1674 * @since 1.6
1675 */
1676 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1677 if (exclusionType == null) {
1678 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1679 }
1680 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1681 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1682 }
1683 if (modalExclusionType == exclusionType) {
1684 return;
1685 }
1686 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1687 SecurityManager sm = System.getSecurityManager();
1688 if (sm != null) {
1689 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION);
1690 }
1691 }
1692 modalExclusionType = exclusionType;
1693
1694 // if we want on-fly changes, we need to uncomment the lines below
1695 // and override the method in Dialog to use modalShow() instead
1696 // of updateChildrenBlocking()
1697 /*
1698 if (isModalBlocked()) {
1699 modalBlocker.unblockWindow(this);
1700 }
1701 Dialog.checkShouldBeBlocked(this);
1702 updateChildrenBlocking();
1703 */
1704 }
1705
1706 /**
1707 * Returns the modal exclusion type of this window.
1708 *
1709 * @return the modal exclusion type of this window
1710 *
1711 * @see java.awt.Dialog.ModalExclusionType
1712 * @see java.awt.Window#setModalExclusionType
1713 *
1714 * @since 1.6
1715 */
1716 public Dialog.ModalExclusionType getModalExclusionType() {
1717 return modalExclusionType;
1718 }
1719
1720 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1721 if ((modalExclusionType != null) &&
1722 modalExclusionType.compareTo(exclusionType) >= 0)
1723 {
1724 return true;
1725 }
1726 Window owner = getOwner_NoClientCode();
1727 return (owner != null) && owner.isModalExcluded(exclusionType);
1728 }
1729
1730 void updateChildrenBlocking() {
1731 Vector<Window> childHierarchy = new Vector<Window>();
1732 Window[] ownedWindows = getOwnedWindows();
1733 for (int i = 0; i < ownedWindows.length; i++) {
1734 childHierarchy.add(ownedWindows[i]);
1735 }
1736 int k = 0;
1737 while (k < childHierarchy.size()) {
1738 Window w = childHierarchy.get(k);
1739 if (w.isVisible()) {
1740 if (w.isModalBlocked()) {
1741 Dialog blocker = w.getModalBlocker();
1742 blocker.unblockWindow(w);
1743 }
1744 Dialog.checkShouldBeBlocked(w);
1745 Window[] wOwned = w.getOwnedWindows();
1746 for (int j = 0; j < wOwned.length; j++) {
1747 childHierarchy.add(wOwned[j]);
1748 }
1749 }
1750 k++;
1751 }
1752 }
1753
1754 /**
1755 * Adds the specified window listener to receive window events from
1756 * this window.
1757 * If l is null, no exception is thrown and no action is performed.
1758 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1759 * >AWT Threading Issues</a> for details on AWT's threading model.
1760 *
1761 * @param l the window listener
1762 * @see #removeWindowListener
1763 * @see #getWindowListeners
1764 */
1765 public synchronized void addWindowListener(WindowListener l) {
1766 if (l == null) {
1767 return;
1768 }
1769 newEventsOnly = true;
1770 windowListener = AWTEventMulticaster.add(windowListener, l);
1771 }
1772
1773 /**
1774 * Adds the specified window state listener to receive window
1775 * events from this window. If {@code l} is {@code null},
1776 * no exception is thrown and no action is performed.
1777 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1778 * >AWT Threading Issues</a> for details on AWT's threading model.
1779 *
1780 * @param l the window state listener
1781 * @see #removeWindowStateListener
1782 * @see #getWindowStateListeners
1783 * @since 1.4
1784 */
1785 public synchronized void addWindowStateListener(WindowStateListener l) {
1786 if (l == null) {
1787 return;
1788 }
1789 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1790 newEventsOnly = true;
1791 }
1792
1793 /**
1794 * Adds the specified window focus listener to receive window events
1795 * from this window.
1796 * If l is null, no exception is thrown and no action is performed.
1797 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1798 * >AWT Threading Issues</a> for details on AWT's threading model.
1799 *
1800 * @param l the window focus listener
1801 * @see #removeWindowFocusListener
1802 * @see #getWindowFocusListeners
1803 * @since 1.4
1804 */
1805 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1806 if (l == null) {
1807 return;
1808 }
1809 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1810 newEventsOnly = true;
1811 }
1812
1813 /**
1814 * Removes the specified window listener so that it no longer
1815 * receives window events from this window.
1816 * If l is null, no exception is thrown and no action is performed.
1817 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1818 * >AWT Threading Issues</a> for details on AWT's threading model.
1819 *
1820 * @param l the window listener
1821 * @see #addWindowListener
1822 * @see #getWindowListeners
1823 */
1824 public synchronized void removeWindowListener(WindowListener l) {
1825 if (l == null) {
1826 return;
1827 }
1828 windowListener = AWTEventMulticaster.remove(windowListener, l);
1829 }
1830
1831 /**
1832 * Removes the specified window state listener so that it no
1833 * longer receives window events from this window. If
1834 * {@code l} is {@code null}, no exception is thrown and
1835 * no action is performed.
1836 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1837 * >AWT Threading Issues</a> for details on AWT's threading model.
1838 *
1839 * @param l the window state listener
1840 * @see #addWindowStateListener
1841 * @see #getWindowStateListeners
1842 * @since 1.4
1843 */
1844 public synchronized void removeWindowStateListener(WindowStateListener l) {
1845 if (l == null) {
1846 return;
1847 }
1848 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1849 }
1850
1851 /**
1852 * Removes the specified window focus listener so that it no longer
1853 * receives window events from this window.
1854 * If l is null, no exception is thrown and no action is performed.
1855 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1856 * >AWT Threading Issues</a> for details on AWT's threading model.
1857 *
1858 * @param l the window focus listener
1859 * @see #addWindowFocusListener
1860 * @see #getWindowFocusListeners
1861 * @since 1.4
1862 */
1863 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1864 if (l == null) {
1865 return;
1866 }
1867 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1868 }
1869
1870 /**
1871 * Returns an array of all the window listeners
1872 * registered on this window.
1873 *
1874 * @return all of this window's {@code WindowListener}s
1875 * or an empty array if no window
1876 * listeners are currently registered
1877 *
1878 * @see #addWindowListener
1879 * @see #removeWindowListener
1880 * @since 1.4
1881 */
1882 public synchronized WindowListener[] getWindowListeners() {
1883 return getListeners(WindowListener.class);
1884 }
1885
1886 /**
1887 * Returns an array of all the window focus listeners
1888 * registered on this window.
1889 *
1890 * @return all of this window's {@code WindowFocusListener}s
1891 * or an empty array if no window focus
1892 * listeners are currently registered
1893 *
1894 * @see #addWindowFocusListener
1895 * @see #removeWindowFocusListener
1896 * @since 1.4
1897 */
1898 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1899 return getListeners(WindowFocusListener.class);
1900 }
1901
1902 /**
1903 * Returns an array of all the window state listeners
1904 * registered on this window.
1905 *
1906 * @return all of this window's {@code WindowStateListener}s
1907 * or an empty array if no window state
1908 * listeners are currently registered
1909 *
1910 * @see #addWindowStateListener
1911 * @see #removeWindowStateListener
1912 * @since 1.4
1913 */
1914 public synchronized WindowStateListener[] getWindowStateListeners() {
1915 return getListeners(WindowStateListener.class);
1916 }
1917
1918
1919 /**
1920 * Returns an array of all the objects currently registered
1921 * as <code><em>Foo</em>Listener</code>s
1922 * upon this {@code Window}.
1923 * <code><em>Foo</em>Listener</code>s are registered using the
1924 * <code>add<em>Foo</em>Listener</code> method.
1925 *
1926 * <p>
1927 *
1928 * You can specify the {@code listenerType} argument
1929 * with a class literal, such as
1930 * <code><em>Foo</em>Listener.class</code>.
1931 * For example, you can query a
1932 * {@code Window w}
1933 * for its window listeners with the following code:
1934 *
1935 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1936 *
1937 * If no such listeners exist, this method returns an empty array.
1938 *
1939 * @param listenerType the type of listeners requested; this parameter
1940 * should specify an interface that descends from
1941 * {@code java.util.EventListener}
1942 * @return an array of all objects registered as
1943 * <code><em>Foo</em>Listener</code>s on this window,
1944 * or an empty array if no such
1945 * listeners have been added
1946 * @exception ClassCastException if {@code listenerType}
1947 * doesn't specify a class or interface that implements
1948 * {@code java.util.EventListener}
1949 * @exception NullPointerException if {@code listenerType} is {@code null}
1950 *
1951 * @see #getWindowListeners
1952 * @since 1.3
1953 */
1954 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1955 EventListener l = null;
1956 if (listenerType == WindowFocusListener.class) {
1957 l = windowFocusListener;
1958 } else if (listenerType == WindowStateListener.class) {
1959 l = windowStateListener;
1960 } else if (listenerType == WindowListener.class) {
1961 l = windowListener;
1962 } else {
1963 return super.getListeners(listenerType);
1964 }
1965 return AWTEventMulticaster.getListeners(l, listenerType);
1966 }
1967
1968 // REMIND: remove when filtering is handled at lower level
1969 boolean eventEnabled(AWTEvent e) {
1970 switch(e.id) {
1971 case WindowEvent.WINDOW_OPENED:
1972 case WindowEvent.WINDOW_CLOSING:
1973 case WindowEvent.WINDOW_CLOSED:
1974 case WindowEvent.WINDOW_ICONIFIED:
1975 case WindowEvent.WINDOW_DEICONIFIED:
1976 case WindowEvent.WINDOW_ACTIVATED:
1977 case WindowEvent.WINDOW_DEACTIVATED:
1978 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1979 windowListener != null) {
1980 return true;
1981 }
1982 return false;
1983 case WindowEvent.WINDOW_GAINED_FOCUS:
1984 case WindowEvent.WINDOW_LOST_FOCUS:
1985 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1986 windowFocusListener != null) {
1987 return true;
1988 }
1989 return false;
1990 case WindowEvent.WINDOW_STATE_CHANGED:
1991 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1992 windowStateListener != null) {
1993 return true;
1994 }
1995 return false;
1996 default:
1997 break;
1998 }
1999 return super.eventEnabled(e);
2000 }
2001
2002 /**
2003 * Processes events on this window. If the event is an
2004 * {@code WindowEvent}, it invokes the
2005 * {@code processWindowEvent} method, else it invokes its
2006 * superclass's {@code processEvent}.
2007 * <p>Note that if the event parameter is {@code null}
2008 * the behavior is unspecified and may result in an
2009 * exception.
2010 *
2011 * @param e the event
2012 */
2013 protected void processEvent(AWTEvent e) {
2014 if (e instanceof WindowEvent) {
2015 switch (e.getID()) {
2016 case WindowEvent.WINDOW_OPENED:
2017 case WindowEvent.WINDOW_CLOSING:
2018 case WindowEvent.WINDOW_CLOSED:
2019 case WindowEvent.WINDOW_ICONIFIED:
2020 case WindowEvent.WINDOW_DEICONIFIED:
2021 case WindowEvent.WINDOW_ACTIVATED:
2022 case WindowEvent.WINDOW_DEACTIVATED:
2023 processWindowEvent((WindowEvent)e);
2024 break;
2025 case WindowEvent.WINDOW_GAINED_FOCUS:
2026 case WindowEvent.WINDOW_LOST_FOCUS:
2027 processWindowFocusEvent((WindowEvent)e);
2028 break;
2029 case WindowEvent.WINDOW_STATE_CHANGED:
2030 processWindowStateEvent((WindowEvent)e);
2031 break;
2032 }
2033 return;
2034 }
2035 super.processEvent(e);
2036 }
2037
2038 /**
2039 * Processes window events occurring on this window by
2040 * dispatching them to any registered WindowListener objects.
2041 * NOTE: This method will not be called unless window events
2042 * are enabled for this component; this happens when one of the
2043 * following occurs:
2044 * <ul>
2045 * <li>A WindowListener object is registered via
2046 * {@code addWindowListener}
2047 * <li>Window events are enabled via {@code enableEvents}
2048 * </ul>
2049 * <p>Note that if the event parameter is {@code null}
2050 * the behavior is unspecified and may result in an
2051 * exception.
2052 *
2053 * @param e the window event
2054 * @see Component#enableEvents
2055 */
2056 protected void processWindowEvent(WindowEvent e) {
2057 WindowListener listener = windowListener;
2058 if (listener != null) {
2059 switch(e.getID()) {
2060 case WindowEvent.WINDOW_OPENED:
2061 listener.windowOpened(e);
2062 break;
2063 case WindowEvent.WINDOW_CLOSING:
2064 listener.windowClosing(e);
2065 break;
2066 case WindowEvent.WINDOW_CLOSED:
2067 listener.windowClosed(e);
2068 break;
2069 case WindowEvent.WINDOW_ICONIFIED:
2070 listener.windowIconified(e);
2071 break;
2072 case WindowEvent.WINDOW_DEICONIFIED:
2073 listener.windowDeiconified(e);
2074 break;
2075 case WindowEvent.WINDOW_ACTIVATED:
2076 listener.windowActivated(e);
2077 break;
2078 case WindowEvent.WINDOW_DEACTIVATED:
2079 listener.windowDeactivated(e);
2080 break;
2081 default:
2082 break;
2083 }
2084 }
2085 }
2086
2087 /**
2088 * Processes window focus event occurring on this window by
2089 * dispatching them to any registered WindowFocusListener objects.
2090 * NOTE: this method will not be called unless window focus events
2091 * are enabled for this window. This happens when one of the
2092 * following occurs:
2093 * <ul>
2094 * <li>a WindowFocusListener is registered via
2095 * {@code addWindowFocusListener}
2096 * <li>Window focus events are enabled via {@code enableEvents}
2097 * </ul>
2098 * <p>Note that if the event parameter is {@code null}
2099 * the behavior is unspecified and may result in an
2100 * exception.
2101 *
2102 * @param e the window focus event
2103 * @see Component#enableEvents
2104 * @since 1.4
2105 */
2106 protected void processWindowFocusEvent(WindowEvent e) {
2107 WindowFocusListener listener = windowFocusListener;
2108 if (listener != null) {
2109 switch (e.getID()) {
2110 case WindowEvent.WINDOW_GAINED_FOCUS:
2111 listener.windowGainedFocus(e);
2112 break;
2113 case WindowEvent.WINDOW_LOST_FOCUS:
2114 listener.windowLostFocus(e);
2115 break;
2116 default:
2117 break;
2118 }
2119 }
2120 }
2121
2122 /**
2123 * Processes window state event occurring on this window by
2124 * dispatching them to any registered {@code WindowStateListener}
2125 * objects.
2126 * NOTE: this method will not be called unless window state events
2127 * are enabled for this window. This happens when one of the
2128 * following occurs:
2129 * <ul>
2130 * <li>a {@code WindowStateListener} is registered via
2131 * {@code addWindowStateListener}
2132 * <li>window state events are enabled via {@code enableEvents}
2133 * </ul>
2134 * <p>Note that if the event parameter is {@code null}
2135 * the behavior is unspecified and may result in an
2136 * exception.
2137 *
2138 * @param e the window state event
2139 * @see java.awt.Component#enableEvents
2140 * @since 1.4
2141 */
2142 protected void processWindowStateEvent(WindowEvent e) {
2143 WindowStateListener listener = windowStateListener;
2144 if (listener != null) {
2145 switch (e.getID()) {
2146 case WindowEvent.WINDOW_STATE_CHANGED:
2147 listener.windowStateChanged(e);
2148 break;
2149 default:
2150 break;
2151 }
2152 }
2153 }
2154
2155 /**
2156 * Implements a debugging hook -- checks to see if
2157 * the user has typed <i>control-shift-F1</i>. If so,
2158 * the list of child windows is dumped to {@code System.out}.
2159 * @param e the keyboard event
2160 */
2161 void preProcessKeyEvent(KeyEvent e) {
2162 // Dump the list of child windows to System.out if debug is enabled.
2163 if (DebugSettings.getInstance().getBoolean("on", false)) {
2164 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2165 e.isControlDown() && e.isShiftDown() &&
2166 e.getID() == KeyEvent.KEY_PRESSED) {
2167 list(System.out, 0);
2168 }
2169 }
2170 }
2171
2172 void postProcessKeyEvent(KeyEvent e) {
2173 // Do nothing
2174 }
2175
2176
2177 /**
2178 * Sets whether this window should always be above other windows. If
2179 * there are multiple always-on-top windows, their relative order is
2180 * unspecified and platform dependent.
2181 * <p>
2182 * If some other window is already always-on-top then the
2183 * relative order between these windows is unspecified (depends on
2184 * platform). No window can be brought to be over the always-on-top
2185 * window except maybe another always-on-top window.
2186 * <p>
2187 * All windows owned by an always-on-top window inherit this state and
2188 * automatically become always-on-top. If a window ceases to be
2189 * always-on-top, the windows that it owns will no longer be
2190 * always-on-top. When an always-on-top window is sent {@link #toBack
2191 * toBack}, its always-on-top state is set to {@code false}.
2192 *
2193 * <p> When this method is called on a window with a value of
2194 * {@code true}, and the window is visible and the platform
2195 * supports always-on-top for this window, the window is immediately
2196 * brought forward, "sticking" it in the top-most position. If the
2197 * window isn`t currently visible, this method sets the always-on-top
2198 * state to {@code true} but does not bring the window forward.
2199 * When the window is later shown, it will be always-on-top.
2200 *
2201 * <p> When this method is called on a window with a value of
2202 * {@code false} the always-on-top state is set to normal. It may also
2203 * cause an unspecified, platform-dependent change in the z-order of
2204 * top-level windows, but other always-on-top windows will remain in
2205 * top-most position. Calling this method with a value of {@code false}
2206 * on a window that has a normal state has no effect.
2207 *
2208 * <p><b>Note</b>: some platforms might not support always-on-top
2209 * windows. To detect if always-on-top windows are supported by the
2210 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2211 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2212 * isn't supported for this window or this window's toolkit does not
2213 * support always-on-top windows, calling this method has no effect.
2214 * <p>
2215 * If a SecurityManager is installed, the calling thread must be
2216 * granted the AWTPermission "setWindowAlwaysOnTop" in
2217 * order to set the value of this property. If this
2218 * permission is not granted, this method will throw a
2219 * SecurityException, and the current value of the property will
2220 * be left unchanged.
2221 *
2222 * @param alwaysOnTop true if the window should always be above other
2223 * windows
2224 * @throws SecurityException if the calling thread does not have
2225 * permission to set the value of always-on-top property
2226 *
2227 * @see #isAlwaysOnTop
2228 * @see #toFront
2229 * @see #toBack
2230 * @see AWTPermission
2231 * @see #isAlwaysOnTopSupported
2232 * @see #getToolkit
2233 * @see Toolkit#isAlwaysOnTopSupported
2234 * @since 1.5
2235 */
2236 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2237 SecurityManager security = System.getSecurityManager();
2238 if (security != null) {
2239 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2240 }
2241
2242 boolean oldAlwaysOnTop;
2243 synchronized(this) {
2244 oldAlwaysOnTop = this.alwaysOnTop;
2245 this.alwaysOnTop = alwaysOnTop;
2246 }
2247 if (oldAlwaysOnTop != alwaysOnTop ) {
2248 if (isAlwaysOnTopSupported()) {
2249 WindowPeer peer = (WindowPeer)this.peer;
2250 synchronized(getTreeLock()) {
2251 if (peer != null) {
2252 peer.updateAlwaysOnTopState();
2253 }
2254 }
2255 }
2256 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2257 }
2258 setOwnedWindowsAlwaysOnTop(alwaysOnTop);
2259 }
2260
2261 @SuppressWarnings({"rawtypes", "unchecked"})
2262 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) {
2263 WeakReference<Window>[] ownedWindowArray;
2264 synchronized (ownedWindowList) {
2265 ownedWindowArray = new WeakReference[ownedWindowList.size()];
2266 ownedWindowList.copyInto(ownedWindowArray);
2267 }
2268
2269 for (WeakReference<Window> ref : ownedWindowArray) {
2270 Window window = ref.get();
2271 if (window != null) {
2272 try {
2273 window.setAlwaysOnTop(alwaysOnTop);
2274 } catch (SecurityException ignore) {
2275 }
2276 }
2277 }
2278 }
2279
2280 /**
2281 * Returns whether the always-on-top mode is supported for this
2282 * window. Some platforms may not support always-on-top windows, some
2283 * may support only some kinds of top-level windows; for example,
2284 * a platform may not support always-on-top modal dialogs.
2285 *
2286 * @return {@code true}, if the always-on-top mode is supported for
2287 * this window and this window's toolkit supports always-on-top windows,
2288 * {@code false} otherwise
2289 *
2290 * @see #setAlwaysOnTop(boolean)
2291 * @see #getToolkit
2292 * @see Toolkit#isAlwaysOnTopSupported
2293 * @since 1.6
2294 */
2295 public boolean isAlwaysOnTopSupported() {
2296 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2297 }
2298
2299
2300 /**
2301 * Returns whether this window is an always-on-top window.
2302 * @return {@code true}, if the window is in always-on-top state,
2303 * {@code false} otherwise
2304 * @see #setAlwaysOnTop
2305 * @since 1.5
2306 */
2307 public final boolean isAlwaysOnTop() {
2308 return alwaysOnTop;
2309 }
2310
2311
2312 /**
2313 * Returns the child Component of this Window that has focus if this Window
2314 * is focused; returns null otherwise.
2315 *
2316 * @return the child Component with focus, or null if this Window is not
2317 * focused
2318 * @see #getMostRecentFocusOwner
2319 * @see #isFocused
2320 */
2321 public Component getFocusOwner() {
2322 return (isFocused())
2323 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2324 getFocusOwner()
2325 : null;
2326 }
2327
2328 /**
2329 * Returns the child Component of this Window that will receive the focus
2330 * when this Window is focused. If this Window is currently focused, this
2331 * method returns the same Component as {@code getFocusOwner()}. If
2332 * this Window is not focused, then the child Component that most recently
2333 * requested focus will be returned. If no child Component has ever
2334 * requested focus, and this is a focusable Window, then this Window's
2335 * initial focusable Component is returned. If no child Component has ever
2336 * requested focus, and this is a non-focusable Window, null is returned.
2337 *
2338 * @return the child Component that will receive focus when this Window is
2339 * focused
2340 * @see #getFocusOwner
2341 * @see #isFocused
2342 * @see #isFocusableWindow
2343 * @since 1.4
2344 */
2345 public Component getMostRecentFocusOwner() {
2346 if (isFocused()) {
2347 return getFocusOwner();
2348 } else {
2349 Component mostRecent =
2350 KeyboardFocusManager.getMostRecentFocusOwner(this);
2351 if (mostRecent != null) {
2352 return mostRecent;
2353 } else {
2354 return (isFocusableWindow())
2355 ? getFocusTraversalPolicy().getInitialComponent(this)
2356 : null;
2357 }
2358 }
2359 }
2360
2361 /**
2362 * Returns whether this Window is active. Only a Frame or a Dialog may be
2363 * active. The native windowing system may denote the active Window or its
2364 * children with special decorations, such as a highlighted title bar. The
2365 * active Window is always either the focused Window, or the first Frame or
2366 * Dialog that is an owner of the focused Window.
2367 *
2368 * @return whether this is the active Window.
2369 * @see #isFocused
2370 * @since 1.4
2371 */
2372 public boolean isActive() {
2373 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2374 getActiveWindow() == this);
2375 }
2376
2377 /**
2378 * Returns whether this Window is focused. If there exists a focus owner,
2379 * the focused Window is the Window that is, or contains, that focus owner.
2380 * If there is no focus owner, then no Window is focused.
2381 * <p>
2382 * If the focused Window is a Frame or a Dialog it is also the active
2383 * Window. Otherwise, the active Window is the first Frame or Dialog that
2384 * is an owner of the focused Window.
2385 *
2386 * @return whether this is the focused Window.
2387 * @see #isActive
2388 * @since 1.4
2389 */
2390 public boolean isFocused() {
2391 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2392 getGlobalFocusedWindow() == this);
2393 }
2394
2395 /**
2396 * Gets a focus traversal key for this Window. (See {@code
2397 * setFocusTraversalKeys} for a full description of each key.)
2398 * <p>
2399 * If the traversal key has not been explicitly set for this Window,
2400 * then this Window's parent's traversal key is returned. If the
2401 * traversal key has not been explicitly set for any of this Window's
2402 * ancestors, then the current KeyboardFocusManager's default traversal key
2403 * is returned.
2404 *
2405 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2406 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2407 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2408 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2409 * @return the AWTKeyStroke for the specified key
2410 * @see Container#setFocusTraversalKeys
2411 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2412 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2413 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2414 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2415 * @throws IllegalArgumentException if id is not one of
2416 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2417 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2418 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2419 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2420 * @since 1.4
2421 */
2422 @SuppressWarnings("unchecked")
2423 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2424 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2425 throw new IllegalArgumentException("invalid focus traversal key identifier");
2426 }
2427
2428 // Okay to return Set directly because it is an unmodifiable view
2429 @SuppressWarnings("rawtypes")
2430 Set keystrokes = (focusTraversalKeys != null)
2431 ? focusTraversalKeys[id]
2432 : null;
2433
2434 if (keystrokes != null) {
2435 return keystrokes;
2436 } else {
2437 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2438 getDefaultFocusTraversalKeys(id);
2439 }
2440 }
2441
2442 /**
2443 * Does nothing because Windows must always be roots of a focus traversal
2444 * cycle. The passed-in value is ignored.
2445 *
2446 * @param focusCycleRoot this value is ignored
2447 * @see #isFocusCycleRoot
2448 * @see Container#setFocusTraversalPolicy
2449 * @see Container#getFocusTraversalPolicy
2450 * @since 1.4
2451 */
2452 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2453 }
2454
2455 /**
2456 * Always returns {@code true} because all Windows must be roots of a
2457 * focus traversal cycle.
2458 *
2459 * @return {@code true}
2460 * @see #setFocusCycleRoot
2461 * @see Container#setFocusTraversalPolicy
2462 * @see Container#getFocusTraversalPolicy
2463 * @since 1.4
2464 */
2465 public final boolean isFocusCycleRoot() {
2466 return true;
2467 }
2468
2469 /**
2470 * Always returns {@code null} because Windows have no ancestors; they
2471 * represent the top of the Component hierarchy.
2472 *
2473 * @return {@code null}
2474 * @see Container#isFocusCycleRoot()
2475 * @since 1.4
2476 */
2477 public final Container getFocusCycleRootAncestor() {
2478 return null;
2479 }
2480
2481 /**
2482 * Returns whether this Window can become the focused Window, that is,
2483 * whether this Window or any of its subcomponents can become the focus
2484 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2485 * must be set to {@code true}. For a Window which is not a Frame or
2486 * Dialog to be focusable, its focusable Window state must be set to
2487 * {@code true}, its nearest owning Frame or Dialog must be
2488 * showing on the screen, and it must contain at least one Component in
2489 * its focus traversal cycle. If any of these conditions is not met, then
2490 * neither this Window nor any of its subcomponents can become the focus
2491 * owner.
2492 *
2493 * @return {@code true} if this Window can be the focused Window;
2494 * {@code false} otherwise
2495 * @see #getFocusableWindowState
2496 * @see #setFocusableWindowState
2497 * @see #isShowing
2498 * @see Component#isFocusable
2499 * @since 1.4
2500 */
2501 public final boolean isFocusableWindow() {
2502 // If a Window/Frame/Dialog was made non-focusable, then it is always
2503 // non-focusable.
2504 if (!getFocusableWindowState()) {
2505 return false;
2506 }
2507
2508 // All other tests apply only to Windows.
2509 if (this instanceof Frame || this instanceof Dialog) {
2510 return true;
2511 }
2512
2513 // A Window must have at least one Component in its root focus
2514 // traversal cycle to be focusable.
2515 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2516 return false;
2517 }
2518
2519 // A Window's nearest owning Frame or Dialog must be showing on the
2520 // screen.
2521 for (Window owner = getOwner(); owner != null;
2522 owner = owner.getOwner())
2523 {
2524 if (owner instanceof Frame || owner instanceof Dialog) {
2525 return owner.isShowing();
2526 }
2527 }
2528
2529 return false;
2530 }
2531
2532 /**
2533 * Returns whether this Window can become the focused Window if it meets
2534 * the other requirements outlined in {@code isFocusableWindow}. If
2535 * this method returns {@code false}, then
2536 * {@code isFocusableWindow} will return {@code false} as well.
2537 * If this method returns {@code true}, then
2538 * {@code isFocusableWindow} may return {@code true} or
2539 * {@code false} depending upon the other requirements which must be
2540 * met in order for a Window to be focusable.
2541 * <p>
2542 * By default, all Windows have a focusable Window state of
2543 * {@code true}.
2544 *
2545 * @return whether this Window can be the focused Window
2546 * @see #isFocusableWindow
2547 * @see #setFocusableWindowState
2548 * @see #isShowing
2549 * @see Component#setFocusable
2550 * @since 1.4
2551 */
2552 public boolean getFocusableWindowState() {
2553 return focusableWindowState;
2554 }
2555
2556 /**
2557 * Sets whether this Window can become the focused Window if it meets
2558 * the other requirements outlined in {@code isFocusableWindow}. If
2559 * this Window's focusable Window state is set to {@code false}, then
2560 * {@code isFocusableWindow} will return {@code false}. If this
2561 * Window's focusable Window state is set to {@code true}, then
2562 * {@code isFocusableWindow} may return {@code true} or
2563 * {@code false} depending upon the other requirements which must be
2564 * met in order for a Window to be focusable.
2565 * <p>
2566 * Setting a Window's focusability state to {@code false} is the
2567 * standard mechanism for an application to identify to the AWT a Window
2568 * which will be used as a floating palette or toolbar, and thus should be
2569 * a non-focusable Window.
2570 *
2571 * Setting the focusability state on a visible {@code Window}
2572 * can have a delayed effect on some platforms — the actual
2573 * change may happen only when the {@code Window} becomes
2574 * hidden and then visible again. To ensure consistent behavior
2575 * across platforms, set the {@code Window}'s focusable state
2576 * when the {@code Window} is invisible and then show it.
2577 *
2578 * @param focusableWindowState whether this Window can be the focused
2579 * Window
2580 * @see #isFocusableWindow
2581 * @see #getFocusableWindowState
2582 * @see #isShowing
2583 * @see Component#setFocusable
2584 * @since 1.4
2585 */
2586 public void setFocusableWindowState(boolean focusableWindowState) {
2587 boolean oldFocusableWindowState;
2588 synchronized (this) {
2589 oldFocusableWindowState = this.focusableWindowState;
2590 this.focusableWindowState = focusableWindowState;
2591 }
2592 WindowPeer peer = (WindowPeer)this.peer;
2593 if (peer != null) {
2594 peer.updateFocusableWindowState();
2595 }
2596 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2597 focusableWindowState);
2598 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2599 for (Window owner = getOwner();
2600 owner != null;
2601 owner = owner.getOwner())
2602 {
2603 Component toFocus =
2604 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2605 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) {
2606 return;
2607 }
2608 }
2609 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2610 clearGlobalFocusOwnerPriv();
2611 }
2612 }
2613
2614 /**
2615 * Sets whether this window should receive focus on
2616 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2617 * or being moved to the front (with a call to {@link #toFront}).
2618 * <p>
2619 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2620 * (e.g. when showing an owner of the window makes the window to be shown).
2621 * {@link #toFront} may also be called indirectly (e.g. when
2622 * {@link #setVisible setVisible(true)} is called on already visible window).
2623 * In all such cases this property takes effect as well.
2624 * <p>
2625 * The value of the property is not inherited by owned windows.
2626 *
2627 * @param autoRequestFocus whether this window should be focused on
2628 * subsequently being shown or being moved to the front
2629 * @see #isAutoRequestFocus
2630 * @see #isFocusableWindow
2631 * @see #setVisible
2632 * @see #toFront
2633 * @since 1.7
2634 */
2635 public void setAutoRequestFocus(boolean autoRequestFocus) {
2636 this.autoRequestFocus = autoRequestFocus;
2637 }
2638
2639 /**
2640 * Returns whether this window should receive focus on subsequently being shown
2641 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2642 * (with a call to {@link #toFront}).
2643 * <p>
2644 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2645 *
2646 * @return {@code autoRequestFocus} value
2647 * @see #setAutoRequestFocus
2648 * @since 1.7
2649 */
2650 public boolean isAutoRequestFocus() {
2651 return autoRequestFocus;
2652 }
2653
2654 /**
2655 * Adds a PropertyChangeListener to the listener list. The listener is
2656 * registered for all bound properties of this class, including the
2657 * following:
2658 * <ul>
2659 * <li>this Window's font ("font")</li>
2660 * <li>this Window's background color ("background")</li>
2661 * <li>this Window's foreground color ("foreground")</li>
2662 * <li>this Window's focusability ("focusable")</li>
2663 * <li>this Window's focus traversal keys enabled state
2664 * ("focusTraversalKeysEnabled")</li>
2665 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2666 * ("forwardFocusTraversalKeys")</li>
2667 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2668 * ("backwardFocusTraversalKeys")</li>
2669 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2670 * ("upCycleFocusTraversalKeys")</li>
2671 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2672 * ("downCycleFocusTraversalKeys")</li>
2673 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2674 * </li>
2675 * <li>this Window's focusable Window state ("focusableWindowState")
2676 * </li>
2677 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2678 * </ul>
2679 * Note that if this Window is inheriting a bound property, then no
2680 * event will be fired in response to a change in the inherited property.
2681 * <p>
2682 * If listener is null, no exception is thrown and no action is performed.
2683 *
2684 * @param listener the PropertyChangeListener to be added
2685 *
2686 * @see Component#removePropertyChangeListener
2687 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2688 */
2689 public void addPropertyChangeListener(PropertyChangeListener listener) {
2690 super.addPropertyChangeListener(listener);
2691 }
2692
2693 /**
2694 * Adds a PropertyChangeListener to the listener list for a specific
2695 * property. The specified property may be user-defined, or one of the
2696 * following:
2697 * <ul>
2698 * <li>this Window's font ("font")</li>
2699 * <li>this Window's background color ("background")</li>
2700 * <li>this Window's foreground color ("foreground")</li>
2701 * <li>this Window's focusability ("focusable")</li>
2702 * <li>this Window's focus traversal keys enabled state
2703 * ("focusTraversalKeysEnabled")</li>
2704 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2705 * ("forwardFocusTraversalKeys")</li>
2706 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2707 * ("backwardFocusTraversalKeys")</li>
2708 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2709 * ("upCycleFocusTraversalKeys")</li>
2710 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2711 * ("downCycleFocusTraversalKeys")</li>
2712 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2713 * </li>
2714 * <li>this Window's focusable Window state ("focusableWindowState")
2715 * </li>
2716 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2717 * </ul>
2718 * Note that if this Window is inheriting a bound property, then no
2719 * event will be fired in response to a change in the inherited property.
2720 * <p>
2721 * If listener is null, no exception is thrown and no action is performed.
2722 *
2723 * @param propertyName one of the property names listed above
2724 * @param listener the PropertyChangeListener to be added
2725 *
2726 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2727 * @see Component#removePropertyChangeListener
2728 */
2729 public void addPropertyChangeListener(String propertyName,
2730 PropertyChangeListener listener) {
2731 super.addPropertyChangeListener(propertyName, listener);
2732 }
2733
2734 /**
2735 * Indicates if this container is a validate root.
2736 * <p>
2737 * {@code Window} objects are the validate roots, and, therefore, they
2738 * override this method to return {@code true}.
2739 *
2740 * @return {@code true}
2741 * @since 1.7
2742 * @see java.awt.Container#isValidateRoot
2743 */
2744 @Override
2745 public boolean isValidateRoot() {
2746 return true;
2747 }
2748
2749 /**
2750 * Dispatches an event to this window or one of its sub components.
2751 * @param e the event
2752 */
2753 void dispatchEventImpl(AWTEvent e) {
2754 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2755 invalidate();
2756 validate();
2757 }
2758 super.dispatchEventImpl(e);
2759 }
2760
2761 /**
2762 * @deprecated As of JDK version 1.1
2763 * replaced by {@code dispatchEvent(AWTEvent)}.
2764 */
2765 @Deprecated
2766 public boolean postEvent(Event e) {
2767 if (handleEvent(e)) {
2768 e.consume();
2769 return true;
2770 }
2771 return false;
2772 }
2773
2774 /**
2775 * Checks if this Window is showing on screen.
2776 * @see Component#setVisible
2777 */
2778 public boolean isShowing() {
2779 return visible;
2780 }
2781
2782 boolean isDisposing() {
2783 return disposing;
2784 }
2785
2786 /**
2787 * @deprecated As of J2SE 1.4, replaced by
2788 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2789 * @param rb the resource bundle
2790 */
2791 @Deprecated
2792 public void applyResourceBundle(ResourceBundle rb) {
2793 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2794 }
2795
2796 /**
2797 * @deprecated As of J2SE 1.4, replaced by
2798 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2799 * @param rbName the resource name
2800 */
2801 @Deprecated
2802 public void applyResourceBundle(String rbName) {
2803 // Use the unnamed module from the TCCL or system class loader.
2804 ClassLoader cl = Thread.currentThread().getContextClassLoader();
2805 if (cl == null) {
2806 cl = ClassLoader.getSystemClassLoader();
2807 }
2808 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule()));
2809 }
2810
2811 /*
2812 * Support for tracking all windows owned by this window
2813 */
2814 void addOwnedWindow(WeakReference<Window> weakWindow) {
2815 if (weakWindow != null) {
2816 synchronized(ownedWindowList) {
2817 // this if statement should really be an assert, but we don't
2818 // have asserts...
2819 if (!ownedWindowList.contains(weakWindow)) {
2820 ownedWindowList.addElement(weakWindow);
2821 }
2822 }
2823 }
2824 }
2825
2826 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2827 if (weakWindow != null) {
2828 // synchronized block not required since removeElement is
2829 // already synchronized
2830 ownedWindowList.removeElement(weakWindow);
2831 }
2832 }
2833
2834 void connectOwnedWindow(Window child) {
2835 child.parent = this;
2836 addOwnedWindow(child.weakThis);
2837 child.disposerRecord.updateOwner();
2838 }
2839
2840 private void addToWindowList() {
2841 synchronized (Window.class) {
2842 @SuppressWarnings("unchecked")
2843 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2844 if (windowList == null) {
2845 windowList = new Vector<WeakReference<Window>>();
2846 appContext.put(Window.class, windowList);
2847 }
2848 windowList.add(weakThis);
2849 }
2850 }
2851
2852 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2853 synchronized (Window.class) {
2854 @SuppressWarnings("unchecked")
2855 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2856 if (windowList != null) {
2857 windowList.remove(weakThis);
2858 }
2859 }
2860 }
2861
2862 private void removeFromWindowList() {
2863 removeFromWindowList(appContext, weakThis);
2864 }
2865
2866 /**
2867 * Window type.
2868 *
2869 * Synchronization: ObjectLock
2870 */
2871 private Type type = Type.NORMAL;
2872
2873 /**
2874 * Sets the type of the window.
2875 *
2876 * This method can only be called while the window is not displayable.
2877 *
2878 * @param type the window type
2879 * @throws IllegalComponentStateException if the window
2880 * is displayable.
2881 * @throws IllegalArgumentException if the type is {@code null}
2882 * @see Component#isDisplayable
2883 * @see #getType
2884 * @since 1.7
2885 */
2886 public void setType(Type type) {
2887 if (type == null) {
2888 throw new IllegalArgumentException("type should not be null.");
2889 }
2890 synchronized (getTreeLock()) {
2891 if (isDisplayable()) {
2892 throw new IllegalComponentStateException(
2893 "The window is displayable.");
2894 }
2895 synchronized (getObjectLock()) {
2896 this.type = type;
2897 }
2898 }
2899 }
2900
2901 /**
2902 * Returns the type of the window.
2903 *
2904 * @return the type of the window
2905 * @see #setType
2906 * @since 1.7
2907 */
2908 public Type getType() {
2909 synchronized (getObjectLock()) {
2910 return type;
2911 }
2912 }
2913
2914 /**
2915 * The window serialized data version.
2916 *
2917 * @serial
2918 */
2919 private int windowSerializedDataVersion = 2;
2920
2921 /**
2922 * Writes default serializable fields to stream. Writes
2923 * a list of serializable {@code WindowListener}s and
2924 * {@code WindowFocusListener}s as optional data.
2925 * Writes a list of child windows as optional data.
2926 * Writes a list of icon images as optional data
2927 *
2928 * @param s the {@code ObjectOutputStream} to write
2929 * @serialData {@code null} terminated sequence of
2930 * 0 or more pairs; the pair consists of a {@code String}
2931 * and {@code Object}; the {@code String}
2932 * indicates the type of object and is one of the following:
2933 * {@code windowListenerK} indicating a
2934 * {@code WindowListener} object;
2935 * {@code windowFocusWindowK} indicating a
2936 * {@code WindowFocusListener} object;
2937 * {@code ownedWindowK} indicating a child
2938 * {@code Window} object
2939 *
2940 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2941 * @see Component#windowListenerK
2942 * @see Component#windowFocusListenerK
2943 * @see Component#ownedWindowK
2944 * @see #readObject(ObjectInputStream)
2945 */
2946 private void writeObject(ObjectOutputStream s) throws IOException {
2947 synchronized (this) {
2948 // Update old focusMgr fields so that our object stream can be read
2949 // by previous releases
2950 focusMgr = new FocusManager();
2951 focusMgr.focusRoot = this;
2952 focusMgr.focusOwner = getMostRecentFocusOwner();
2953
2954 s.defaultWriteObject();
2955
2956 // Clear fields so that we don't keep extra references around
2957 focusMgr = null;
2958
2959 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2960 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2961 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2962 }
2963
2964 s.writeObject(null);
2965
2966 synchronized (ownedWindowList) {
2967 for (int i = 0; i < ownedWindowList.size(); i++) {
2968 Window child = ownedWindowList.elementAt(i).get();
2969 if (child != null) {
2970 s.writeObject(ownedWindowK);
2971 s.writeObject(child);
2972 }
2973 }
2974 }
2975 s.writeObject(null);
2976
2977 //write icon array
2978 if (icons != null) {
2979 for (Image i : icons) {
2980 if (i instanceof Serializable) {
2981 s.writeObject(i);
2982 }
2983 }
2984 }
2985 s.writeObject(null);
2986 }
2987
2988 //
2989 // Part of deserialization procedure to be called before
2990 // user's code.
2991 //
2992 private void initDeserializedWindow() {
2993 setWarningString();
2994 inputContextLock = new Object();
2995
2996 // Deserialized Windows are not yet visible.
2997 visible = false;
2998
2999 weakThis = new WeakReference<>(this);
3000
3001 anchor = new Object();
3002 disposerRecord = new WindowDisposerRecord(appContext, this);
3003 sun.java2d.Disposer.addRecord(anchor, disposerRecord);
3004
3005 addToWindowList();
3006 initGC(null);
3007 ownedWindowList = new Vector<>();
3008 }
3009
3010 private void deserializeResources(ObjectInputStream s)
3011 throws ClassNotFoundException, IOException, HeadlessException {
3012
3013 if (windowSerializedDataVersion < 2) {
3014 // Translate old-style focus tracking to new model. For 1.4 and
3015 // later releases, we'll rely on the Window's initial focusable
3016 // Component.
3017 if (focusMgr != null) {
3018 if (focusMgr.focusOwner != null) {
3019 KeyboardFocusManager.
3020 setMostRecentFocusOwner(this, focusMgr.focusOwner);
3021 }
3022 }
3023
3024 // This field is non-transient and relies on default serialization.
3025 // However, the default value is insufficient, so we need to set
3026 // it explicitly for object data streams prior to 1.4.
3027 focusableWindowState = true;
3028
3029
3030 }
3031
3032 Object keyOrNull;
3033 while(null != (keyOrNull = s.readObject())) {
3034 String key = ((String)keyOrNull).intern();
3035
3036 if (windowListenerK == key) {
3037 addWindowListener((WindowListener)(s.readObject()));
3038 } else if (windowFocusListenerK == key) {
3039 addWindowFocusListener((WindowFocusListener)(s.readObject()));
3040 } else if (windowStateListenerK == key) {
3041 addWindowStateListener((WindowStateListener)(s.readObject()));
3042 } else // skip value for unrecognized key
3043 s.readObject();
3044 }
3045
3046 try {
3047 while (null != (keyOrNull = s.readObject())) {
3048 String key = ((String)keyOrNull).intern();
3049
3050 if (ownedWindowK == key)
3051 connectOwnedWindow((Window) s.readObject());
3052
3053 else // skip value for unrecognized key
3054 s.readObject();
3055 }
3056
3057 //read icons
3058 Object obj = s.readObject(); //Throws OptionalDataException
3059 //for pre1.6 objects.
3060 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3061 //pre1.6 version if icons is null.
3062 while (obj != null) {
3063 if (obj instanceof Image) {
3064 icons.add((Image)obj);
3065 }
3066 obj = s.readObject();
3067 }
3068 }
3069 catch (OptionalDataException e) {
3070 // 1.1 serialized form
3071 // ownedWindowList will be updated by Frame.readObject
3072 }
3073
3074 }
3075
3076 /**
3077 * Reads the {@code ObjectInputStream} and an optional
3078 * list of listeners to receive various events fired by
3079 * the component; also reads a list of
3080 * (possibly {@code null}) child windows.
3081 * Unrecognized keys or values will be ignored.
3082 *
3083 * @param s the {@code ObjectInputStream} to read
3084 * @exception HeadlessException if
3085 * {@code GraphicsEnvironment.isHeadless} returns
3086 * {@code true}
3087 * @see java.awt.GraphicsEnvironment#isHeadless
3088 * @see #writeObject
3089 */
3090 private void readObject(ObjectInputStream s)
3091 throws ClassNotFoundException, IOException, HeadlessException
3092 {
3093 GraphicsEnvironment.checkHeadless();
3094 initDeserializedWindow();
3095 ObjectInputStream.GetField f = s.readFields();
3096
3097 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3098 state = f.get("state", 0);
3099 focusableWindowState = f.get("focusableWindowState", true);
3100 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3101 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3102 // Note: 1.4 (or later) doesn't use focusMgr
3103 focusMgr = (FocusManager)f.get("focusMgr", null);
3104 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3105 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3106 setModalExclusionType(et); // since 6.0
3107 boolean aot = f.get("alwaysOnTop", false);
3108 if(aot) {
3109 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3110 }
3111 shape = (Shape)f.get("shape", null);
3112 opacity = (Float)f.get("opacity", 1.0f);
3113
3114 this.securityWarningWidth = 0;
3115 this.securityWarningHeight = 0;
3116 this.securityWarningPointX = 2.0;
3117 this.securityWarningPointY = 0.0;
3118 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3119 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3120
3121 deserializeResources(s);
3122 }
3123
3124 /*
3125 * --- Accessibility Support ---
3126 *
3127 */
3128
3129 /**
3130 * Gets the AccessibleContext associated with this Window.
3131 * For windows, the AccessibleContext takes the form of an
3132 * AccessibleAWTWindow.
3133 * A new AccessibleAWTWindow instance is created if necessary.
3134 *
3135 * @return an AccessibleAWTWindow that serves as the
3136 * AccessibleContext of this Window
3137 * @since 1.3
3138 */
3139 public AccessibleContext getAccessibleContext() {
3140 if (accessibleContext == null) {
3141 accessibleContext = new AccessibleAWTWindow();
3142 }
3143 return accessibleContext;
3144 }
3145
3146 /**
3147 * This class implements accessibility support for the
3148 * {@code Window} class. It provides an implementation of the
3149 * Java Accessibility API appropriate to window user-interface elements.
3150 * @since 1.3
3151 */
3152 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3153 {
3154 /*
3155 * JDK 1.3 serialVersionUID
3156 */
3157 private static final long serialVersionUID = 4215068635060671780L;
3158
3159 /**
3160 * Get the role of this object.
3161 *
3162 * @return an instance of AccessibleRole describing the role of the
3163 * object
3164 * @see javax.accessibility.AccessibleRole
3165 */
3166 public AccessibleRole getAccessibleRole() {
3167 return AccessibleRole.WINDOW;
3168 }
3169
3170 /**
3171 * Get the state of this object.
3172 *
3173 * @return an instance of AccessibleStateSet containing the current
3174 * state set of the object
3175 * @see javax.accessibility.AccessibleState
3176 */
3177 public AccessibleStateSet getAccessibleStateSet() {
3178 AccessibleStateSet states = super.getAccessibleStateSet();
3179 if (getFocusOwner() != null) {
3180 states.add(AccessibleState.ACTIVE);
3181 }
3182 return states;
3183 }
3184
3185 } // inner class AccessibleAWTWindow
3186
3187 @Override
3188 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3189 if (gc == null) {
3190 gc = GraphicsEnvironment.
3191 getLocalGraphicsEnvironment().
3192 getDefaultScreenDevice().
3193 getDefaultConfiguration();
3194 }
3195 synchronized (getTreeLock()) {
3196 super.setGraphicsConfiguration(gc);
3197 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3198 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3199 }
3200 }
3201 }
3202
3203 /**
3204 * Sets the location of the window relative to the specified
3205 * component according to the following scenarios.
3206 * <p>
3207 * The target screen mentioned below is a screen to which
3208 * the window should be placed after the setLocationRelativeTo
3209 * method is called.
3210 * <ul>
3211 * <li>If the component is {@code null}, or the {@code
3212 * GraphicsConfiguration} associated with this component is
3213 * {@code null}, the window is placed in the center of the
3214 * screen. The center point can be obtained with the {@link
3215 * GraphicsEnvironment#getCenterPoint
3216 * GraphicsEnvironment.getCenterPoint} method.
3217 * <li>If the component is not {@code null}, but it is not
3218 * currently showing, the window is placed in the center of
3219 * the target screen defined by the {@code
3220 * GraphicsConfiguration} associated with this component.
3221 * <li>If the component is not {@code null} and is shown on
3222 * the screen, then the window is located in such a way that
3223 * the center of the window coincides with the center of the
3224 * component.
3225 * </ul>
3226 * <p>
3227 * If the screens configuration does not allow the window to
3228 * be moved from one screen to another, then the window is
3229 * only placed at the location determined according to the
3230 * above conditions and its {@code GraphicsConfiguration} is
3231 * not changed.
3232 * <p>
3233 * <b>Note</b>: If the lower edge of the window is out of the screen,
3234 * then the window is placed to the side of the {@code Component}
3235 * that is closest to the center of the screen. So if the
3236 * component is on the right part of the screen, the window
3237 * is placed to its left, and vice versa.
3238 * <p>
3239 * If after the window location has been calculated, the upper,
3240 * left, or right edge of the window is out of the screen,
3241 * then the window is located in such a way that the upper,
3242 * left, or right edge of the window coincides with the
3243 * corresponding edge of the screen. If both left and right
3244 * edges of the window are out of the screen, the window is
3245 * placed at the left side of the screen. The similar placement
3246 * will occur if both top and bottom edges are out of the screen.
3247 * In that case, the window is placed at the top side of the screen.
3248 * <p>
3249 * The method changes the geometry-related data. Therefore,
3250 * the native windowing system may ignore such requests, or it may modify
3251 * the requested data, so that the {@code Window} object is placed and sized
3252 * in a way that corresponds closely to the desktop settings.
3253 *
3254 * @param c the component in relation to which the window's location
3255 * is determined
3256 * @see java.awt.GraphicsEnvironment#getCenterPoint
3257 * @since 1.4
3258 */
3259 public void setLocationRelativeTo(Component c) {
3260 // target location
3261 int dx = 0, dy = 0;
3262 // target GC
3263 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3264 Rectangle gcBounds = gc.getBounds();
3265
3266 Dimension windowSize = getSize();
3267
3268 // search a top-level of c
3269 Window componentWindow = SunToolkit.getContainingWindow(c);
3270 if ((c == null) || (componentWindow == null)) {
3271 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3272 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3273 gcBounds = gc.getBounds();
3274 Point centerPoint = ge.getCenterPoint();
3275 dx = centerPoint.x - windowSize.width / 2;
3276 dy = centerPoint.y - windowSize.height / 2;
3277 } else if (!c.isShowing()) {
3278 gc = componentWindow.getGraphicsConfiguration();
3279 gcBounds = gc.getBounds();
3280 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3281 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3282 } else {
3283 gc = componentWindow.getGraphicsConfiguration();
3284 gcBounds = gc.getBounds();
3285 Dimension compSize = c.getSize();
3286 Point compLocation = c.getLocationOnScreen();
3287 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3288 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3289
3290 // Adjust for bottom edge being offscreen
3291 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3292 dy = gcBounds.y + gcBounds.height - windowSize.height;
3293 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3294 dx = compLocation.x + compSize.width;
3295 } else {
3296 dx = compLocation.x - windowSize.width;
3297 }
3298 }
3299 }
3300
3301 // Avoid being placed off the edge of the screen:
3302 // bottom
3303 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3304 dy = gcBounds.y + gcBounds.height - windowSize.height;
3305 }
3306 // top
3307 if (dy < gcBounds.y) {
3308 dy = gcBounds.y;
3309 }
3310 // right
3311 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3312 dx = gcBounds.x + gcBounds.width - windowSize.width;
3313 }
3314 // left
3315 if (dx < gcBounds.x) {
3316 dx = gcBounds.x;
3317 }
3318
3319 setLocation(dx, dy);
3320 }
3321
3322 /**
3323 * Overridden from Component. Top-level Windows should not propagate a
3324 * MouseWheelEvent beyond themselves into their owning Windows.
3325 */
3326 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3327
3328 /**
3329 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3330 */
3331 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3332
3333 /**
3334 * Creates a new strategy for multi-buffering on this component.
3335 * Multi-buffering is useful for rendering performance. This method
3336 * attempts to create the best strategy available with the number of
3337 * buffers supplied. It will always create a {@code BufferStrategy}
3338 * with that number of buffers.
3339 * A page-flipping strategy is attempted first, then a blitting strategy
3340 * using accelerated buffers. Finally, an unaccelerated blitting
3341 * strategy is used.
3342 * <p>
3343 * Each time this method is called,
3344 * the existing buffer strategy for this component is discarded.
3345 * @param numBuffers number of buffers to create
3346 * @exception IllegalArgumentException if numBuffers is less than 1.
3347 * @exception IllegalStateException if the component is not displayable
3348 * @see #isDisplayable
3349 * @see #getBufferStrategy
3350 * @since 1.4
3351 */
3352 public void createBufferStrategy(int numBuffers) {
3353 super.createBufferStrategy(numBuffers);
3354 }
3355
3356 /**
3357 * Creates a new strategy for multi-buffering on this component with the
3358 * required buffer capabilities. This is useful, for example, if only
3359 * accelerated memory or page flipping is desired (as specified by the
3360 * buffer capabilities).
3361 * <p>
3362 * Each time this method
3363 * is called, the existing buffer strategy for this component is discarded.
3364 * @param numBuffers number of buffers to create, including the front buffer
3365 * @param caps the required capabilities for creating the buffer strategy;
3366 * cannot be {@code null}
3367 * @exception AWTException if the capabilities supplied could not be
3368 * supported or met; this may happen, for example, if there is not enough
3369 * accelerated memory currently available, or if page flipping is specified
3370 * but not possible.
3371 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3372 * caps is {@code null}
3373 * @see #getBufferStrategy
3374 * @since 1.4
3375 */
3376 public void createBufferStrategy(int numBuffers,
3377 BufferCapabilities caps) throws AWTException {
3378 super.createBufferStrategy(numBuffers, caps);
3379 }
3380
3381 /**
3382 * Returns the {@code BufferStrategy} used by this component. This
3383 * method will return null if a {@code BufferStrategy} has not yet
3384 * been created or has been disposed.
3385 *
3386 * @return the buffer strategy used by this component
3387 * @see #createBufferStrategy
3388 * @since 1.4
3389 */
3390 public BufferStrategy getBufferStrategy() {
3391 return super.getBufferStrategy();
3392 }
3393
3394 Component getTemporaryLostComponent() {
3395 return temporaryLostComponent;
3396 }
3397 Component setTemporaryLostComponent(Component component) {
3398 Component previousComp = temporaryLostComponent;
3399 // Check that "component" is an acceptable focus owner and don't store it otherwise
3400 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3401 if (component == null || component.canBeFocusOwner()) {
3402 temporaryLostComponent = component;
3403 } else {
3404 temporaryLostComponent = null;
3405 }
3406 return previousComp;
3407 }
3408
3409 /**
3410 * Checks whether this window can contain focus owner.
3411 * Verifies that it is focusable and as container it can container focus owner.
3412 * @since 1.5
3413 */
3414 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3415 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3416 }
3417
3418 private volatile boolean locationByPlatform = locationByPlatformProp;
3419
3420
3421 /**
3422 * Sets whether this Window should appear at the default location for the
3423 * native windowing system or at the current location (returned by
3424 * {@code getLocation}) the next time the Window is made visible.
3425 * This behavior resembles a native window shown without programmatically
3426 * setting its location. Most windowing systems cascade windows if their
3427 * locations are not explicitly set. The actual location is determined once the
3428 * window is shown on the screen.
3429 * <p>
3430 * This behavior can also be enabled by setting the System Property
3431 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3432 * take precedence.
3433 * <p>
3434 * Calls to {@code setVisible}, {@code setLocation} and
3435 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3436 * this property of the Window.
3437 * <p>
3438 * For example, after the following code is executed:
3439 * <pre>
3440 * setLocationByPlatform(true);
3441 * setVisible(true);
3442 * boolean flag = isLocationByPlatform();
3443 * </pre>
3444 * The window will be shown at platform's default location and
3445 * {@code flag} will be {@code false}.
3446 * <p>
3447 * In the following sample:
3448 * <pre>
3449 * setLocationByPlatform(true);
3450 * setLocation(10, 10);
3451 * boolean flag = isLocationByPlatform();
3452 * setVisible(true);
3453 * </pre>
3454 * The window will be shown at (10, 10) and {@code flag} will be
3455 * {@code false}.
3456 *
3457 * @param locationByPlatform {@code true} if this Window should appear
3458 * at the default location, {@code false} if at the current location
3459 * @throws IllegalComponentStateException if the window
3460 * is showing on screen and locationByPlatform is {@code true}.
3461 * @see #setLocation
3462 * @see #isShowing
3463 * @see #setVisible
3464 * @see #isLocationByPlatform
3465 * @see java.lang.System#getProperty(String)
3466 * @since 1.5
3467 */
3468 public void setLocationByPlatform(boolean locationByPlatform) {
3469 synchronized (getTreeLock()) {
3470 if (locationByPlatform && isShowing()) {
3471 throw new IllegalComponentStateException("The window is showing on screen.");
3472 }
3473 this.locationByPlatform = locationByPlatform;
3474 }
3475 }
3476
3477 /**
3478 * Returns {@code true} if this Window will appear at the default location
3479 * for the native windowing system the next time this Window is made visible.
3480 * This method always returns {@code false} if the Window is showing on the
3481 * screen.
3482 *
3483 * @return whether this Window will appear at the default location
3484 * @see #setLocationByPlatform
3485 * @see #isShowing
3486 * @since 1.5
3487 */
3488 public boolean isLocationByPlatform() {
3489 return locationByPlatform;
3490 }
3491
3492 /**
3493 * {@inheritDoc}
3494 * <p>
3495 * The {@code width} or {@code height} values
3496 * are automatically enlarged if either is less than
3497 * the minimum size as specified by previous call to
3498 * {@code setMinimumSize}.
3499 * <p>
3500 * The method changes the geometry-related data. Therefore,
3501 * the native windowing system may ignore such requests, or it may modify
3502 * the requested data, so that the {@code Window} object is placed and sized
3503 * in a way that corresponds closely to the desktop settings.
3504 *
3505 * @see #getBounds
3506 * @see #setLocation(int, int)
3507 * @see #setLocation(Point)
3508 * @see #setSize(int, int)
3509 * @see #setSize(Dimension)
3510 * @see #setMinimumSize
3511 * @see #setLocationByPlatform
3512 * @see #isLocationByPlatform
3513 * @since 1.6
3514 */
3515 public void setBounds(int x, int y, int width, int height) {
3516 synchronized (getTreeLock()) {
3517 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3518 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3519 {
3520 locationByPlatform = false;
3521 }
3522 super.setBounds(x, y, width, height);
3523 }
3524 }
3525
3526 /**
3527 * {@inheritDoc}
3528 * <p>
3529 * The {@code r.width} or {@code r.height} values
3530 * will be automatically enlarged if either is less than
3531 * the minimum size as specified by previous call to
3532 * {@code setMinimumSize}.
3533 * <p>
3534 * The method changes the geometry-related data. Therefore,
3535 * the native windowing system may ignore such requests, or it may modify
3536 * the requested data, so that the {@code Window} object is placed and sized
3537 * in a way that corresponds closely to the desktop settings.
3538 *
3539 * @see #getBounds
3540 * @see #setLocation(int, int)
3541 * @see #setLocation(Point)
3542 * @see #setSize(int, int)
3543 * @see #setSize(Dimension)
3544 * @see #setMinimumSize
3545 * @see #setLocationByPlatform
3546 * @see #isLocationByPlatform
3547 * @since 1.6
3548 */
3549 public void setBounds(Rectangle r) {
3550 setBounds(r.x, r.y, r.width, r.height);
3551 }
3552
3553 /**
3554 * Determines whether this component will be displayed on the screen.
3555 * @return {@code true} if the component and all of its ancestors
3556 * until a toplevel window are visible, {@code false} otherwise
3557 */
3558 boolean isRecursivelyVisible() {
3559 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3560 // We're overriding isRecursivelyVisible to implement this policy.
3561 return visible;
3562 }
3563
3564
3565 // ******************** SHAPES & TRANSPARENCY CODE ********************
3566
3567 /**
3568 * Returns the opacity of the window.
3569 *
3570 * @return the opacity of the window
3571 *
3572 * @see Window#setOpacity(float)
3573 * @see GraphicsDevice.WindowTranslucency
3574 *
3575 * @since 1.7
3576 */
3577 public float getOpacity() {
3578 return opacity;
3579 }
3580
3581 /**
3582 * Sets the opacity of the window.
3583 * <p>
3584 * The opacity value is in the range [0..1]. Note that setting the opacity
3585 * level of 0 may or may not disable the mouse event handling on this
3586 * window. This is a platform-dependent behavior.
3587 * <p>
3588 * The following conditions must be met in order to set the opacity value
3589 * less than {@code 1.0f}:
3590 * <ul>
3591 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3592 * translucency must be supported by the underlying system
3593 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3594 * and {@link Dialog#setUndecorated})
3595 * <li>The window must not be in full-screen mode (see {@link
3596 * GraphicsDevice#setFullScreenWindow(Window)})
3597 * </ul>
3598 * <p>
3599 * If the requested opacity value is less than {@code 1.0f}, and any of the
3600 * above conditions are not met, the window opacity will not change,
3601 * and the {@code IllegalComponentStateException} will be thrown.
3602 * <p>
3603 * The translucency levels of individual pixels may also be effected by the
3604 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3605 * current shape of this window (see {@link #setShape(Shape)}).
3606 *
3607 * @param opacity the opacity level to set to the window
3608 *
3609 * @throws IllegalArgumentException if the opacity is out of the range
3610 * [0..1]
3611 * @throws IllegalComponentStateException if the window is decorated and
3612 * the opacity is less than {@code 1.0f}
3613 * @throws IllegalComponentStateException if the window is in full screen
3614 * mode, and the opacity is less than {@code 1.0f}
3615 * @throws UnsupportedOperationException if the {@code
3616 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3617 * translucency is not supported and the opacity is less than
3618 * {@code 1.0f}
3619 *
3620 * @see Window#getOpacity
3621 * @see Window#setBackground(Color)
3622 * @see Window#setShape(Shape)
3623 * @see Frame#isUndecorated
3624 * @see Dialog#isUndecorated
3625 * @see GraphicsDevice.WindowTranslucency
3626 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3627 *
3628 * @since 1.7
3629 */
3630 @SuppressWarnings("deprecation")
3631 public void setOpacity(float opacity) {
3632 synchronized (getTreeLock()) {
3633 if (opacity < 0.0f || opacity > 1.0f) {
3634 throw new IllegalArgumentException(
3635 "The value of opacity should be in the range [0.0f .. 1.0f].");
3636 }
3637 if (opacity < 1.0f) {
3638 GraphicsConfiguration gc = getGraphicsConfiguration();
3639 GraphicsDevice gd = gc.getDevice();
3640 if (gc.getDevice().getFullScreenWindow() == this) {
3641 throw new IllegalComponentStateException(
3642 "Setting opacity for full-screen window is not supported.");
3643 }
3644 if (!gd.isWindowTranslucencySupported(
3645 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3646 {
3647 throw new UnsupportedOperationException(
3648 "TRANSLUCENT translucency is not supported.");
3649 }
3650 }
3651 this.opacity = opacity;
3652 WindowPeer peer = (WindowPeer) this.peer;
3653 if (peer != null) {
3654 peer.setOpacity(opacity);
3655 }
3656 }
3657 }
3658
3659 /**
3660 * Returns the shape of the window.
3661 *
3662 * The value returned by this method may not be the same as
3663 * previously set with {@code setShape(shape)}, but it is guaranteed
3664 * to represent the same shape.
3665 *
3666 * @return the shape of the window or {@code null} if no
3667 * shape is specified for the window
3668 *
3669 * @see Window#setShape(Shape)
3670 * @see GraphicsDevice.WindowTranslucency
3671 *
3672 * @since 1.7
3673 */
3674 public Shape getShape() {
3675 synchronized (getTreeLock()) {
3676 return shape == null ? null : new Path2D.Float(shape);
3677 }
3678 }
3679
3680 /**
3681 * Sets the shape of the window.
3682 * <p>
3683 * Setting a shape cuts off some parts of the window. Only the parts that
3684 * belong to the given {@link Shape} remain visible and clickable. If
3685 * the shape argument is {@code null}, this method restores the default
3686 * shape, making the window rectangular on most platforms.
3687 * <p>
3688 * The following conditions must be met to set a non-null shape:
3689 * <ul>
3690 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3691 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3692 * underlying system
3693 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3694 * and {@link Dialog#setUndecorated})
3695 * <li>The window must not be in full-screen mode (see {@link
3696 * GraphicsDevice#setFullScreenWindow(Window)})
3697 * </ul>
3698 * <p>
3699 * If the requested shape is not {@code null}, and any of the above
3700 * conditions are not met, the shape of this window will not change,
3701 * and either the {@code UnsupportedOperationException} or {@code
3702 * IllegalComponentStateException} will be thrown.
3703 * <p>
3704 * The translucency levels of individual pixels may also be effected by the
3705 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3706 * opacity value (see {@link #setOpacity(float)}). See {@link
3707 * GraphicsDevice.WindowTranslucency} for more details.
3708 *
3709 * @param shape the shape to set to the window
3710 *
3711 * @throws IllegalComponentStateException if the shape is not {@code
3712 * null} and the window is decorated
3713 * @throws IllegalComponentStateException if the shape is not {@code
3714 * null} and the window is in full-screen mode
3715 * @throws UnsupportedOperationException if the shape is not {@code
3716 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3717 * PERPIXEL_TRANSPARENT} translucency is not supported
3718 *
3719 * @see Window#getShape()
3720 * @see Window#setBackground(Color)
3721 * @see Window#setOpacity(float)
3722 * @see Frame#isUndecorated
3723 * @see Dialog#isUndecorated
3724 * @see GraphicsDevice.WindowTranslucency
3725 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3726 *
3727 * @since 1.7
3728 */
3729 public void setShape(Shape shape) {
3730 synchronized (getTreeLock()) {
3731 if (shape != null) {
3732 GraphicsConfiguration gc = getGraphicsConfiguration();
3733 GraphicsDevice gd = gc.getDevice();
3734 if (gc.getDevice().getFullScreenWindow() == this) {
3735 throw new IllegalComponentStateException(
3736 "Setting shape for full-screen window is not supported.");
3737 }
3738 if (!gd.isWindowTranslucencySupported(
3739 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3740 {
3741 throw new UnsupportedOperationException(
3742 "PERPIXEL_TRANSPARENT translucency is not supported.");
3743 }
3744 }
3745 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3746 WindowPeer peer = (WindowPeer) this.peer;
3747 if (peer != null) {
3748 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3749 }
3750 }
3751 }
3752
3753 /**
3754 * Gets the background color of this window.
3755 * <p>
3756 * Note that the alpha component of the returned color indicates whether
3757 * the window is in the non-opaque (per-pixel translucent) mode.
3758 *
3759 * @return this component's background color
3760 *
3761 * @see Window#setBackground(Color)
3762 * @see Window#isOpaque
3763 * @see GraphicsDevice.WindowTranslucency
3764 */
3765 @Override
3766 public Color getBackground() {
3767 return super.getBackground();
3768 }
3769
3770 /**
3771 * Sets the background color of this window.
3772 * <p>
3773 * If the windowing system supports the {@link
3774 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3775 * translucency, the alpha component of the given background color
3776 * may effect the mode of operation for this window: it indicates whether
3777 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3778 * (alpha is less than {@code 1.0f}). If the given background color is
3779 * {@code null}, the window is considered completely opaque.
3780 * <p>
3781 * All the following conditions must be met to enable the per-pixel
3782 * transparency mode for this window:
3783 * <ul>
3784 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3785 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3786 * device where this window is located
3787 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3788 * and {@link Dialog#setUndecorated})
3789 * <li>The window must not be in full-screen mode (see {@link
3790 * GraphicsDevice#setFullScreenWindow(Window)})
3791 * </ul>
3792 * <p>
3793 * If the alpha component of the requested background color is less than
3794 * {@code 1.0f}, and any of the above conditions are not met, the background
3795 * color of this window will not change, the alpha component of the given
3796 * background color will not affect the mode of operation for this window,
3797 * and either the {@code UnsupportedOperationException} or {@code
3798 * IllegalComponentStateException} will be thrown.
3799 * <p>
3800 * When the window is per-pixel translucent, the drawing sub-system
3801 * respects the alpha value of each individual pixel. If a pixel gets
3802 * painted with the alpha color component equal to zero, it becomes
3803 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3804 * pixel is fully opaque. Interim values of the alpha color component make
3805 * the pixel semi-transparent. In this mode, the background of the window
3806 * gets painted with the alpha value of the given background color. If the
3807 * alpha value of the argument of this method is equal to {@code 0}, the
3808 * background is not painted at all.
3809 * <p>
3810 * The actual level of translucency of a given pixel also depends on window
3811 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3812 * this window (see {@link #setShape(Shape)}).
3813 * <p>
3814 * Note that painting a pixel with the alpha value of {@code 0} may or may
3815 * not disable the mouse event handling on this pixel. This is a
3816 * platform-dependent behavior. To make sure the mouse events do not get
3817 * dispatched to a particular pixel, the pixel must be excluded from the
3818 * shape of the window.
3819 * <p>
3820 * Enabling the per-pixel translucency mode may change the graphics
3821 * configuration of this window due to the native platform requirements.
3822 *
3823 * @param bgColor the color to become this window's background color.
3824 *
3825 * @throws IllegalComponentStateException if the alpha value of the given
3826 * background color is less than {@code 1.0f} and the window is decorated
3827 * @throws IllegalComponentStateException if the alpha value of the given
3828 * background color is less than {@code 1.0f} and the window is in
3829 * full-screen mode
3830 * @throws UnsupportedOperationException if the alpha value of the given
3831 * background color is less than {@code 1.0f} and {@link
3832 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3833 * PERPIXEL_TRANSLUCENT} translucency is not supported
3834 *
3835 * @see Window#getBackground
3836 * @see Window#isOpaque
3837 * @see Window#setOpacity(float)
3838 * @see Window#setShape(Shape)
3839 * @see Frame#isUndecorated
3840 * @see Dialog#isUndecorated
3841 * @see GraphicsDevice.WindowTranslucency
3842 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3843 * @see GraphicsConfiguration#isTranslucencyCapable()
3844 */
3845 @Override
3846 public void setBackground(Color bgColor) {
3847 Color oldBg = getBackground();
3848 super.setBackground(bgColor);
3849 if (oldBg != null && oldBg.equals(bgColor)) {
3850 return;
3851 }
3852 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3853 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3854 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3855 GraphicsConfiguration gc = getGraphicsConfiguration();
3856 GraphicsDevice gd = gc.getDevice();
3857 if (gc.getDevice().getFullScreenWindow() == this) {
3858 throw new IllegalComponentStateException(
3859 "Making full-screen window non opaque is not supported.");
3860 }
3861 if (!gc.isTranslucencyCapable()) {
3862 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3863 if (capableGC == null) {
3864 throw new UnsupportedOperationException(
3865 "PERPIXEL_TRANSLUCENT translucency is not supported");
3866 }
3867 setGraphicsConfiguration(capableGC);
3868 }
3869 setLayersOpaque(this, false);
3870 } else if ((oldAlpha < 255) && (alpha == 255)) {
3871 setLayersOpaque(this, true);
3872 }
3873 WindowPeer peer = (WindowPeer) this.peer;
3874 if (peer != null) {
3875 peer.setOpaque(alpha == 255);
3876 }
3877 }
3878
3879 /**
3880 * Indicates if the window is currently opaque.
3881 * <p>
3882 * The method returns {@code false} if the background color of the window
3883 * is not {@code null} and the alpha component of the color is less than
3884 * {@code 1.0f}. The method returns {@code true} otherwise.
3885 *
3886 * @return {@code true} if the window is opaque, {@code false} otherwise
3887 *
3888 * @see Window#getBackground
3889 * @see Window#setBackground(Color)
3890 * @since 1.7
3891 */
3892 @Override
3893 public boolean isOpaque() {
3894 Color bg = getBackground();
3895 return bg != null ? bg.getAlpha() == 255 : true;
3896 }
3897
3898 private void updateWindow() {
3899 synchronized (getTreeLock()) {
3900 WindowPeer peer = (WindowPeer) this.peer;
3901 if (peer != null) {
3902 peer.updateWindow();
3903 }
3904 }
3905 }
3906
3907 /**
3908 * {@inheritDoc}
3909 *
3910 * @since 1.7
3911 */
3912 @Override
3913 public void paint(Graphics g) {
3914 if (!isOpaque()) {
3915 Graphics gg = g.create();
3916 try {
3917 if (gg instanceof Graphics2D) {
3918 gg.setColor(getBackground());
3919 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3920 gg.fillRect(0, 0, getWidth(), getHeight());
3921 }
3922 } finally {
3923 gg.dispose();
3924 }
3925 }
3926 super.paint(g);
3927 }
3928
3929 private static void setLayersOpaque(Component component, boolean isOpaque) {
3930 // Shouldn't use instanceof to avoid loading Swing classes
3931 // if it's a pure AWT application.
3932 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3933 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3934 javax.swing.JRootPane root = rpc.getRootPane();
3935 javax.swing.JLayeredPane lp = root.getLayeredPane();
3936 Container c = root.getContentPane();
3937 javax.swing.JComponent content =
3938 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3939 lp.setOpaque(isOpaque);
3940 root.setOpaque(isOpaque);
3941 if (content != null) {
3942 content.setOpaque(isOpaque);
3943
3944 // Iterate down one level to see whether we have a JApplet
3945 // (which is also a RootPaneContainer) which requires processing
3946 int numChildren = content.getComponentCount();
3947 if (numChildren > 0) {
3948 Component child = content.getComponent(0);
3949 // It's OK to use instanceof here because we've
3950 // already loaded the RootPaneContainer class by now
3951 if (child instanceof javax.swing.RootPaneContainer) {
3952 setLayersOpaque(child, isOpaque);
3953 }
3954 }
3955 }
3956 }
3957 }
3958
3959
3960 // ************************** MIXING CODE *******************************
3961
3962 // A window has an owner, but it does NOT have a container
3963 @Override
3964 final Container getContainer() {
3965 return null;
3966 }
3967
3968 /**
3969 * Applies the shape to the component
3970 * @param shape Shape to be applied to the component
3971 */
3972 @Override
3973 final void applyCompoundShape(Region shape) {
3974 // The shape calculated by mixing code is not intended to be applied
3975 // to windows or frames
3976 }
3977
3978 @Override
3979 final void applyCurrentShape() {
3980 // The shape calculated by mixing code is not intended to be applied
3981 // to windows or frames
3982 }
3983
3984 @Override
3985 final void mixOnReshaping() {
3986 // The shape calculated by mixing code is not intended to be applied
3987 // to windows or frames
3988 }
3989
3990 @Override
3991 final Point getLocationOnWindow() {
3992 return new Point(0, 0);
3993 }
3994
3995 // ****************** END OF MIXING CODE ********************************
3996
3997 /**
3998 * Limit the given double value with the given range.
3999 */
4000 private static double limit(double value, double min, double max) {
4001 value = Math.max(value, min);
4002 value = Math.min(value, max);
4003 return value;
4004 }
4005
4006 /**
4007 * Calculate the position of the security warning.
4008 *
4009 * This method gets the window location/size as reported by the native
4010 * system since the locally cached values may represent outdated data.
4011 *
4012 * The method is used from the native code, or via AWTAccessor.
4013 *
4014 * NOTE: this method is invoked on the toolkit thread, and therefore is not
4015 * supposed to become public/user-overridable.
4016 */
4017 private Point2D calculateSecurityWarningPosition(double x, double y,
4018 double w, double h)
4019 {
4020 // The position according to the spec of SecurityWarning.setPosition()
4021 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
4022 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
4023
4024 // First, make sure the warning is not too far from the window bounds
4025 wx = Window.limit(wx,
4026 x - securityWarningWidth - 2,
4027 x + w + 2);
4028 wy = Window.limit(wy,
4029 y - securityWarningHeight - 2,
4030 y + h + 2);
4031
4032 // Now make sure the warning window is visible on the screen
4033 GraphicsConfiguration graphicsConfig =
4034 getGraphicsConfiguration_NoClientCode();
4035 Rectangle screenBounds = graphicsConfig.getBounds();
4036 Insets screenInsets =
4037 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
4038
4039 wx = Window.limit(wx,
4040 screenBounds.x + screenInsets.left,
4041 screenBounds.x + screenBounds.width - screenInsets.right
4042 - securityWarningWidth);
4043 wy = Window.limit(wy,
4044 screenBounds.y + screenInsets.top,
4045 screenBounds.y + screenBounds.height - screenInsets.bottom
4046 - securityWarningHeight);
4047
4048 return new Point2D.Double(wx, wy);
4049 }
4050
4051 static {
4052 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4053 public float getOpacity(Window window) {
4054 return window.opacity;
4055 }
4056 public void setOpacity(Window window, float opacity) {
4057 window.setOpacity(opacity);
4058 }
4059 public Shape getShape(Window window) {
4060 return window.getShape();
4061 }
4062 public void setShape(Window window, Shape shape) {
4063 window.setShape(shape);
4064 }
4065 public void setOpaque(Window window, boolean opaque) {
4066 Color bg = window.getBackground();
4067 if (bg == null) {
4068 bg = new Color(0, 0, 0, 0);
4069 }
4070 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4071 opaque ? 255 : 0));
4072 }
4073 public void updateWindow(Window window) {
4074 window.updateWindow();
4075 }
4076
4077 public Dimension getSecurityWarningSize(Window window) {
4078 return new Dimension(window.securityWarningWidth,
4079 window.securityWarningHeight);
4080 }
4081
4082 public void setSecurityWarningSize(Window window, int width, int height)
4083 {
4084 window.securityWarningWidth = width;
4085 window.securityWarningHeight = height;
4086 }
4087
4088 public void setSecurityWarningPosition(Window window,
4089 Point2D point, float alignmentX, float alignmentY)
4090 {
4091 window.securityWarningPointX = point.getX();
4092 window.securityWarningPointY = point.getY();
4093 window.securityWarningAlignmentX = alignmentX;
4094 window.securityWarningAlignmentY = alignmentY;
4095
4096 synchronized (window.getTreeLock()) {
4097 WindowPeer peer = (WindowPeer) window.peer;
4098 if (peer != null) {
4099 peer.repositionSecurityWarning();
4100 }
4101 }
4102 }
4103
4104 public Point2D calculateSecurityWarningPosition(Window window,
4105 double x, double y, double w, double h)
4106 {
4107 return window.calculateSecurityWarningPosition(x, y, w, h);
4108 }
4109
4110 public void setLWRequestStatus(Window changed, boolean status) {
4111 changed.syncLWRequests = status;
4112 }
4113
4114 public boolean isAutoRequestFocus(Window w) {
4115 return w.autoRequestFocus;
4116 }
4117
4118 public boolean isTrayIconWindow(Window w) {
4119 return w.isTrayIconWindow;
4120 }
4121
4122 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4123 w.isTrayIconWindow = isTrayIconWindow;
4124 }
4125
4126 public Window[] getOwnedWindows(Window w) {
4127 return w.getOwnedWindows_NoClientCode();
4128 }
4129 }); // WindowAccessor
4130 } // static
4131
4132 // a window doesn't need to be updated in the Z-order.
4133 @Override
4134 void updateZOrder() {}
4135
4136 } // class Window
4137
4138
4139 /**
4140 * This class is no longer used, but is maintained for Serialization
4141 * backward-compatibility.
4142 */
4143 class FocusManager implements java.io.Serializable {
4144 Container focusRoot;
4145 Component focusOwner;
4146
4147 /*
4148 * JDK 1.1 serialVersionUID
4149 */
4150 static final long serialVersionUID = 2491878825643557906L;
4151 }