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