1 /*
2 * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.awt;
26
27 import java.awt.event.*;
28 import java.awt.geom.Path2D;
29 import java.awt.geom.Point2D;
30 import java.awt.im.InputContext;
31 import java.awt.image.BufferStrategy;
32 import java.awt.image.BufferedImage;
33 import java.awt.peer.ComponentPeer;
34 import java.awt.peer.WindowPeer;
35 import java.beans.PropertyChangeListener;
36 import java.io.IOException;
37 import java.io.ObjectInputStream;
38 import java.io.ObjectOutputStream;
39 import java.io.OptionalDataException;
40 import java.io.Serializable;
41 import java.lang.ref.WeakReference;
42 import java.lang.reflect.InvocationTargetException;
43 import java.security.AccessController;
44 import java.util.ArrayList;
45 import java.util.Arrays;
46 import java.util.EventListener;
47 import java.util.Locale;
48 import java.util.ResourceBundle;
49 import java.util.Set;
50 import java.util.Vector;
51 import java.util.concurrent.atomic.AtomicBoolean;
52 import javax.accessibility.*;
53 import sun.awt.AWTAccessor;
54 import sun.awt.AppContext;
55 import sun.awt.CausedFocusEvent;
56 import sun.awt.SunToolkit;
57 import sun.awt.util.IdentityArrayList;
58 import sun.java2d.Disposer;
59 import sun.java2d.pipe.Region;
60 import sun.security.action.GetPropertyAction;
61 import sun.security.util.SecurityConstants;
62 import sun.util.logging.PlatformLogger;
63
64 /**
65 * A {@code Window} object is a top-level window with no borders and no
66 * menubar.
67 * The default layout for a window is {@code BorderLayout}.
68 * <p>
69 * A window must have either a frame, dialog, or another window defined as its
70 * owner when it's constructed.
71 * <p>
72 * In a multi-screen environment, you can create a {@code Window}
73 * on a different screen device by constructing the {@code Window}
74 * with {@link #Window(Window, GraphicsConfiguration)}. The
75 * {@code GraphicsConfiguration} object is one of the
76 * {@code GraphicsConfiguration} objects of the target screen device.
77 * <p>
78 * In a virtual device multi-screen environment in which the desktop
79 * area could span multiple physical screen devices, the bounds of all
80 * configurations are relative to the virtual device coordinate system.
81 * The origin of the virtual-coordinate system is at the upper left-hand
82 * corner of the primary physical screen. Depending on the location of
83 * the primary screen in the virtual device, negative coordinates are
84 * possible, as shown in the following figure.
85 * <p>
86 * <img src="doc-files/MultiScreen.gif"
87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)."
88 * ALIGN=center HSPACE=10 VSPACE=7>
89 * <p>
90 * In such an environment, when calling {@code setLocation},
91 * you must pass a virtual coordinate to this method. Similarly,
92 * calling {@code getLocationOnScreen} on a {@code Window} returns
93 * virtual device coordinates. Call the {@code getBounds} method
94 * of a {@code GraphicsConfiguration} to find its origin in the virtual
95 * coordinate system.
96 * <p>
97 * The following code sets the location of a {@code Window}
98 * at (10, 10) relative to the origin of the physical screen
99 * of the corresponding {@code GraphicsConfiguration}. If the
100 * bounds of the {@code GraphicsConfiguration} is not taken
101 * into account, the {@code Window} location would be set
102 * at (10, 10) relative to the virtual-coordinate system and would appear
103 * on the primary physical screen, which might be different from the
104 * physical screen of the specified {@code GraphicsConfiguration}.
105 *
106 * <pre>
107 * Window w = new Window(Window owner, GraphicsConfiguration gc);
108 * Rectangle bounds = gc.getBounds();
109 * w.setLocation(10 + bounds.x, 10 + bounds.y);
110 * </pre>
111 *
112 * <p>
113 * Note: the location and size of top-level windows (including
114 * {@code Window}s, {@code Frame}s, and {@code Dialog}s)
115 * are under the control of the desktop's window management system.
116 * Calls to {@code setLocation}, {@code setSize}, and
117 * {@code setBounds} are requests (not directives) which are
118 * forwarded to the window management system. Every effort will be
119 * made to honor such requests. However, in some cases the window
120 * management system may ignore such requests, or modify the requested
121 * geometry in order to place and size the {@code Window} in a way
122 * that more closely matches the desktop settings.
123 * <p>
124 * Due to the asynchronous nature of native event handling, the results
125 * returned by {@code getBounds}, {@code getLocation},
126 * {@code getLocationOnScreen}, and {@code getSize} might not
127 * reflect the actual geometry of the Window on screen until the last
128 * request has been processed. During the processing of subsequent
129 * requests these values might change accordingly while the window
130 * management system fulfills the requests.
131 * <p>
132 * An application may set the size and location of an invisible
133 * {@code Window} arbitrarily, but the window management system may
134 * subsequently change its size and/or location when the
135 * {@code Window} is made visible. One or more {@code ComponentEvent}s
136 * will be generated to indicate the new geometry.
137 * <p>
138 * Windows are capable of generating the following WindowEvents:
139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus.
140 *
141 * @author Sami Shaio
142 * @author Arthur van Hoff
143 * @see WindowEvent
144 * @see #addWindowListener
145 * @see java.awt.BorderLayout
146 * @since JDK1.0
147 */
148 public class Window extends Container implements Accessible {
149
150 /**
151 * Enumeration of available <i>window types</i>.
152 *
153 * A window type defines the generic visual appearance and behavior of a
154 * top-level window. For example, the type may affect the kind of
155 * decorations of a decorated {@code Frame} or {@code Dialog} instance.
156 * <p>
157 * Some platforms may not fully support a certain window type. Depending on
158 * the level of support, some properties of the window type may be
159 * disobeyed.
160 *
161 * @see #getType
162 * @see #setType
163 * @since 1.7
164 */
165 public static enum Type {
166 /**
167 * Represents a <i>normal</i> window.
168 *
169 * This is the default type for objects of the {@code Window} class or
170 * its descendants. Use this type for regular top-level windows.
171 */
172 NORMAL,
173
174 /**
175 * Represents a <i>utility</i> window.
176 *
177 * A utility window is usually a small window such as a toolbar or a
178 * palette. The native system may render the window with smaller
179 * title-bar if the window is either a {@code Frame} or a {@code
180 * Dialog} object, and if it has its decorations enabled.
181 */
182 UTILITY,
183
184 /**
185 * Represents a <i>popup</i> window.
186 *
187 * A popup window is a temporary window such as a drop-down menu or a
188 * tooltip. On some platforms, windows of that type may be forcibly
189 * made undecorated even if they are instances of the {@code Frame} or
190 * {@code Dialog} class, and have decorations enabled.
191 */
192 POPUP
193 }
194
195 /**
196 * This represents the warning message that is
197 * to be displayed in a non secure window. ie :
198 * a window that has a security manager installed for
199 * which calling SecurityManager.checkTopLevelWindow()
200 * is false. This message can be displayed anywhere in
201 * the window.
202 *
203 * @serial
204 * @see #getWarningString
205 */
206 String warningString;
207
208 /**
209 * {@code icons} is the graphical way we can
210 * represent the frames and dialogs.
211 * {@code Window} can't display icon but it's
212 * being inherited by owned {@code Dialog}s.
213 *
214 * @serial
215 * @see #getIconImages
216 * @see #setIconImages(List<? extends Image>)
217 */
218 transient java.util.List<Image> icons;
219
220 /**
221 * Holds the reference to the component which last had focus in this window
222 * before it lost focus.
223 */
224 private transient Component temporaryLostComponent;
225
226 static boolean systemSyncLWRequests = false;
227 boolean syncLWRequests = false;
228 transient boolean beforeFirstShow = true;
229 private transient boolean disposing = false;
230
231 static final int OPENED = 0x01;
232
233 /**
234 * An Integer value representing the Window State.
235 *
236 * @serial
237 * @since 1.2
238 * @see #show
239 */
240 int state;
241
242 /**
243 * A boolean value representing Window always-on-top state
244 * @since 1.5
245 * @serial
246 * @see #setAlwaysOnTop
247 * @see #isAlwaysOnTop
248 */
249 private boolean alwaysOnTop;
250
251 /**
252 * Contains all the windows that have a peer object associated,
253 * i. e. between addNotify() and removeNotify() calls. The list
254 * of all Window instances can be obtained from AppContext object.
255 *
256 * @since 1.6
257 */
258 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>();
259
260 /**
261 * A vector containing all the windows this
262 * window currently owns.
263 * @since 1.2
264 * @see #getOwnedWindows
265 */
266 transient Vector<WeakReference<Window>> ownedWindowList =
267 new Vector<WeakReference<Window>>();
268
269 /*
270 * We insert a weak reference into the Vector of all Windows in AppContext
271 * instead of 'this' so that garbage collection can still take place
272 * correctly.
273 */
274 private transient WeakReference<Window> weakThis;
275
276 transient boolean showWithParent;
277
278 /**
279 * Contains the modal dialog that blocks this window, or null
280 * if the window is unblocked.
281 *
282 * @since 1.6
283 */
284 transient Dialog modalBlocker;
285
286 /**
287 * @serial
288 *
289 * @see java.awt.Dialog.ModalExclusionType
290 * @see #getModalExclusionType
291 * @see #setModalExclusionType
292 *
293 * @since 1.6
294 */
295 Dialog.ModalExclusionType modalExclusionType;
296
297 transient WindowListener windowListener;
298 transient WindowStateListener windowStateListener;
299 transient WindowFocusListener windowFocusListener;
300
301 transient InputContext inputContext;
302 private transient Object inputContextLock = new Object();
303
304 /**
305 * Unused. Maintained for serialization backward-compatibility.
306 *
307 * @serial
308 * @since 1.2
309 */
310 private FocusManager focusMgr;
311
312 /**
313 * Indicates whether this Window can become the focused Window.
314 *
315 * @serial
316 * @see #getFocusableWindowState
317 * @see #setFocusableWindowState
318 * @since 1.4
319 */
320 private boolean focusableWindowState = true;
321
322 /**
323 * Indicates whether this window should receive focus on
324 * subsequently being shown (with a call to {@code setVisible(true)}), or
325 * being moved to the front (with a call to {@code toFront()}).
326 *
327 * @serial
328 * @see #setAutoRequestFocus
329 * @see #isAutoRequestFocus
330 * @since 1.7
331 */
332 private volatile boolean autoRequestFocus = true;
333
334 /*
335 * Indicates that this window is being shown. This flag is set to true at
336 * the beginning of show() and to false at the end of show().
337 *
338 * @see #show()
339 * @see Dialog#shouldBlock
340 */
341 transient boolean isInShow = false;
342
343 /**
344 * The opacity level of the window
345 *
346 * @serial
347 * @see #setOpacity(float)
348 * @see #getOpacity()
349 * @since 1.7
350 */
351 private float opacity = 1.0f;
352
353 /**
354 * The shape assigned to this window. This field is set to {@code null} if
355 * no shape is set (rectangular window).
356 *
357 * @serial
358 * @see #getShape()
359 * @see #setShape(Shape)
360 * @since 1.7
361 */
362 private Shape shape = null;
363
364 private static final String base = "win";
365 private static int nameCounter = 0;
366
367 /*
368 * JDK 1.1 serialVersionUID
369 */
370 private static final long serialVersionUID = 4497834738069338734L;
371
372 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window");
373
374 private static final boolean locationByPlatformProp;
375
376 transient boolean isTrayIconWindow = false;
377
378 /**
379 * These fields are initialized in the native peer code
380 * or via AWTAccessor's WindowAccessor.
381 */
382 private transient volatile int securityWarningWidth = 0;
383 private transient volatile int securityWarningHeight = 0;
384
385 /**
386 * These fields represent the desired location for the security
387 * warning if this window is untrusted.
388 * See com.sun.awt.SecurityWarning for more details.
389 */
390 private transient double securityWarningPointX = 2.0;
391 private transient double securityWarningPointY = 0.0;
392 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT;
393 private transient float securityWarningAlignmentY = TOP_ALIGNMENT;
394
395 static {
396 /* ensure that the necessary native libraries are loaded */
397 Toolkit.loadLibraries();
398 if (!GraphicsEnvironment.isHeadless()) {
399 initIDs();
400 }
401
402 String s = java.security.AccessController.doPrivileged(
403 new GetPropertyAction("java.awt.syncLWRequests"));
404 systemSyncLWRequests = (s != null && s.equals("true"));
405 s = java.security.AccessController.doPrivileged(
406 new GetPropertyAction("java.awt.Window.locationByPlatform"));
407 locationByPlatformProp = (s != null && s.equals("true"));
408 }
409
410 /**
411 * Initialize JNI field and method IDs for fields that may be
412 accessed from C.
413 */
414 private static native void initIDs();
415
416 /**
417 * Constructs a new, initially invisible window in default size with the
418 * specified {@code GraphicsConfiguration}.
419 * <p>
420 * If there is a security manager, this method first calls
421 * the security manager's {@code checkTopLevelWindow}
422 * method with {@code this}
423 * as its argument to determine whether or not the window
424 * must be displayed with a warning banner.
425 *
426 * @param gc the {@code GraphicsConfiguration} of the target screen
427 * device. If {@code gc} is {@code null}, the system default
428 * {@code GraphicsConfiguration} is assumed
429 * @exception IllegalArgumentException if {@code gc}
430 * is not from a screen device
431 * @exception HeadlessException when
432 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
433 *
434 * @see java.awt.GraphicsEnvironment#isHeadless
435 * @see java.lang.SecurityManager#checkTopLevelWindow
436 */
437 Window(GraphicsConfiguration gc) {
438 init(gc);
439 }
440
441 transient Object anchor = new Object();
442 static class WindowDisposerRecord implements sun.java2d.DisposerRecord {
443 final WeakReference<Window> owner;
444 final WeakReference<Window> weakThis;
445 final WeakReference<AppContext> context;
446 WindowDisposerRecord(AppContext context, Window victim) {
447 owner = new WeakReference<Window>(victim.getOwner());
448 weakThis = victim.weakThis;
449 this.context = new WeakReference<AppContext>(context);
450 }
451 public void dispose() {
452 Window parent = owner.get();
453 if (parent != null) {
454 parent.removeOwnedWindow(weakThis);
455 }
456 AppContext ac = context.get();
457 if (null != ac) {
458 Window.removeFromWindowList(ac, weakThis);
459 }
460 }
461 }
462
463 private GraphicsConfiguration initGC(GraphicsConfiguration gc) {
464 GraphicsEnvironment.checkHeadless();
465
466 if (gc == null) {
467 gc = GraphicsEnvironment.getLocalGraphicsEnvironment().
468 getDefaultScreenDevice().getDefaultConfiguration();
469 }
470 setGraphicsConfiguration(gc);
471
472 return gc;
473 }
474
475 private void init(GraphicsConfiguration gc) {
476 GraphicsEnvironment.checkHeadless();
477
478 syncLWRequests = systemSyncLWRequests;
479
480 weakThis = new WeakReference<Window>(this);
481 addToWindowList();
482
483 setWarningString();
484 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
485 this.visible = false;
486
487 gc = initGC(gc);
488
489 if (gc.getDevice().getType() !=
490 GraphicsDevice.TYPE_RASTER_SCREEN) {
491 throw new IllegalArgumentException("not a screen device");
492 }
493 setLayout(new BorderLayout());
494
495 /* offset the initial location with the original of the screen */
496 /* and any insets */
497 Rectangle screenBounds = gc.getBounds();
498 Insets screenInsets = getToolkit().getScreenInsets(gc);
499 int x = getX() + screenBounds.x + screenInsets.left;
500 int y = getY() + screenBounds.y + screenInsets.top;
501 if (x != this.x || y != this.y) {
502 setLocation(x, y);
503 /* reset after setLocation */
504 setLocationByPlatform(locationByPlatformProp);
505 }
506
507 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
508
509 SunToolkit.checkAndSetPolicy(this);
510 }
511
512 /**
513 * Constructs a new, initially invisible window in the default size.
514 *
515 * <p>First, if there is a security manager, its
516 * {@code checkTopLevelWindow}
517 * method is called with {@code this}
518 * as its argument
519 * to see if it's ok to display the window without a warning banner.
520 * If the default implementation of {@code checkTopLevelWindow}
521 * is used (that is, that method is not overriden), then this results in
522 * a call to the security manager's {@code checkPermission} method
523 * with an {@code AWTPermission("showWindowWithoutWarningBanner")}
524 * permission. It that method raises a SecurityException,
525 * {@code checkTopLevelWindow} returns false, otherwise it
526 * returns true. If it returns false, a warning banner is created.
527 *
528 * @exception HeadlessException when
529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true}
530 *
531 * @see java.awt.GraphicsEnvironment#isHeadless
532 * @see java.lang.SecurityManager#checkTopLevelWindow
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, this method first calls
545 * the security manager's {@code checkTopLevelWindow}
546 * method with {@code this}
547 * as its argument to determine whether or not the window
548 * must be displayed with a warning banner.
549 *
550 * @param owner the {@code Frame} to act as owner or {@code null}
551 * if this window has no owner
552 * @exception IllegalArgumentException if the {@code owner}'s
553 * {@code GraphicsConfiguration} is not from a screen device
554 * @exception HeadlessException when
555 * {@code GraphicsEnvironment.isHeadless} returns {@code true}
556 *
557 * @see java.awt.GraphicsEnvironment#isHeadless
558 * @see java.lang.SecurityManager#checkTopLevelWindow
559 * @see #isShowing
560 */
561 public Window(Frame owner) {
562 this(owner == null ? (GraphicsConfiguration)null :
563 owner.getGraphicsConfiguration());
564 ownedInit(owner);
565 }
566
567 /**
568 * Constructs a new, initially invisible window with the specified
569 * {@code Window} as its owner. This window will not be focusable
570 * unless its nearest owning {@code Frame} or {@code Dialog}
571 * is showing on the screen.
572 * <p>
573 * If there is a security manager, this method first calls
574 * the security manager's {@code checkTopLevelWindow}
575 * method with {@code this}
576 * as its argument to determine whether or not the window
577 * must be displayed with a warning banner.
578 *
579 * @param owner the {@code Window} to act as owner or
580 * {@code null} if this window has no owner
581 * @exception IllegalArgumentException if the {@code owner}'s
582 * {@code GraphicsConfiguration} is not from a screen device
583 * @exception HeadlessException when
584 * {@code GraphicsEnvironment.isHeadless()} returns
585 * {@code true}
586 *
587 * @see java.awt.GraphicsEnvironment#isHeadless
588 * @see java.lang.SecurityManager#checkTopLevelWindow
589 * @see #isShowing
590 *
591 * @since 1.2
592 */
593 public Window(Window owner) {
594 this(owner == null ? (GraphicsConfiguration)null :
595 owner.getGraphicsConfiguration());
596 ownedInit(owner);
597 }
598
599 /**
600 * Constructs a new, initially invisible window with the specified owner
601 * {@code Window} and a {@code GraphicsConfiguration}
602 * of a screen device. The Window will not be focusable unless
603 * its nearest owning {@code Frame} or {@code Dialog}
604 * is showing on the screen.
605 * <p>
606 * If there is a security manager, this method first calls
607 * the security manager's {@code checkTopLevelWindow}
608 * method with {@code this}
609 * as its argument to determine whether or not the window
610 * must be displayed with a warning banner.
611 *
612 * @param owner the window to act as owner or {@code null}
613 * if this window has no owner
614 * @param gc the {@code GraphicsConfiguration} of the target
615 * screen device; if {@code gc} is {@code null},
616 * the system default {@code GraphicsConfiguration} is assumed
617 * @exception IllegalArgumentException if {@code gc}
618 * is not from a screen device
619 * @exception HeadlessException when
620 * {@code GraphicsEnvironment.isHeadless()} returns
621 * {@code true}
622 *
623 * @see java.awt.GraphicsEnvironment#isHeadless
624 * @see java.lang.SecurityManager#checkTopLevelWindow
625 * @see GraphicsConfiguration#getBounds
626 * @see #isShowing
627 * @since 1.3
628 */
629 public Window(Window owner, GraphicsConfiguration gc) {
630 this(gc);
631 ownedInit(owner);
632 }
633
634 private void ownedInit(Window owner) {
635 this.parent = owner;
636 if (owner != null) {
637 owner.addOwnedWindow(weakThis);
638 }
639
640 // Fix for 6758673: this call is moved here from init(gc), because
641 // WindowDisposerRecord requires a proper value of parent field.
642 Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this));
643 }
644
645 /**
646 * Construct a name for this component. Called by getName() when the
647 * name is null.
648 */
649 String constructComponentName() {
650 synchronized (Window.class) {
651 return base + nameCounter++;
652 }
653 }
654
655 /**
656 * Returns the sequence of images to be displayed as the icon for this window.
657 * <p>
658 * This method returns a copy of the internally stored list, so all operations
659 * on the returned object will not affect the window's behavior.
660 *
661 * @return the copy of icon images' list for this window, or
662 * empty list if this window doesn't have icon images.
663 * @see #setIconImages
664 * @see #setIconImage(Image)
665 * @since 1.6
666 */
667 public java.util.List<Image> getIconImages() {
668 java.util.List<Image> icons = this.icons;
669 if (icons == null || icons.size() == 0) {
670 return new ArrayList<Image>();
671 }
672 return new ArrayList<Image>(icons);
673 }
674
675 /**
676 * Sets the sequence of images to be displayed as the icon
677 * for this window. Subsequent calls to {@code getIconImages} will
678 * always return a copy of the {@code icons} list.
679 * <p>
680 * Depending on the platform capabilities one or several images
681 * of different dimensions will be used as the window's icon.
682 * <p>
683 * The {@code icons} list is scanned for the images of most
684 * appropriate dimensions from the beginning. If the list contains
685 * several images of the same size, the first will be used.
686 * <p>
687 * Ownerless windows with no icon specified use platfrom-default icon.
688 * The icon of an owned window may be inherited from the owner
689 * unless explicitly overridden.
690 * Setting the icon to {@code null} or empty list restores
691 * the default behavior.
692 * <p>
693 * Note : Native windowing systems may use different images of differing
694 * dimensions to represent a window, depending on the context (e.g.
695 * window decoration, window list, taskbar, etc.). They could also use
696 * just a single image for all contexts or no image at all.
697 *
698 * @param icons the list of icon images to be displayed.
699 * @see #getIconImages()
700 * @see #setIconImage(Image)
701 * @since 1.6
702 */
703 public synchronized void setIconImages(java.util.List<? extends Image> icons) {
704 this.icons = (icons == null) ? new ArrayList<Image>() :
705 new ArrayList<Image>(icons);
706 WindowPeer peer = (WindowPeer)this.peer;
707 if (peer != null) {
708 peer.updateIconImages();
709 }
710 // Always send a property change event
711 firePropertyChange("iconImage", null, null);
712 }
713
714 /**
715 * Sets the image to be displayed as the icon for this window.
716 * <p>
717 * This method can be used instead of {@link #setIconImages setIconImages()}
718 * to specify a single image as a window's icon.
719 * <p>
720 * The following statement:
721 * <pre>
722 * setIconImage(image);
723 * </pre>
724 * is equivalent to:
725 * <pre>
726 * ArrayList<Image> imageList = new ArrayList<Image>();
727 * imageList.add(image);
728 * setIconImages(imageList);
729 * </pre>
730 * <p>
731 * Note : Native windowing systems may use different images of differing
732 * dimensions to represent a window, depending on the context (e.g.
733 * window decoration, window list, taskbar, etc.). They could also use
734 * just a single image for all contexts or no image at all.
735 *
736 * @param image the icon image to be displayed.
737 * @see #setIconImages
738 * @see #getIconImages()
739 * @since 1.6
740 */
741 public void setIconImage(Image image) {
742 ArrayList<Image> imageList = new ArrayList<Image>();
743 if (image != null) {
744 imageList.add(image);
745 }
746 setIconImages(imageList);
747 }
748
749 /**
750 * Makes this Window displayable by creating the connection to its
751 * native screen resource.
752 * This method is called internally by the toolkit and should
753 * not be called directly by programs.
754 * @see Component#isDisplayable
755 * @see Container#removeNotify
756 * @since JDK1.0
757 */
758 public void addNotify() {
759 synchronized (getTreeLock()) {
760 Container parent = this.parent;
761 if (parent != null && parent.getPeer() == null) {
762 parent.addNotify();
763 }
764 if (peer == null) {
765 peer = getToolkit().createWindow(this);
766 }
767 synchronized (allWindows) {
768 allWindows.add(this);
769 }
770 super.addNotify();
771 }
772 }
773
774 /**
775 * {@inheritDoc}
776 */
777 public void removeNotify() {
778 synchronized (getTreeLock()) {
779 synchronized (allWindows) {
780 allWindows.remove(this);
781 }
782 super.removeNotify();
783 }
784 }
785
786 /**
787 * Causes this Window to be sized to fit the preferred size
788 * and layouts of its subcomponents. The resulting width and
789 * height of the window are automatically enlarged if either
790 * of dimensions is less than the minimum size as specified
791 * by the previous call to the {@code setMinimumSize} method.
792 * <p>
793 * If the window and/or its owner are not displayable yet,
794 * both of them are made displayable before calculating
795 * the preferred size. The Window is validated after its
796 * size is being calculated.
797 *
798 * @see Component#isDisplayable
799 * @see #setMinimumSize
800 */
801 public void pack() {
802 Container parent = this.parent;
803 if (parent != null && parent.getPeer() == null) {
804 parent.addNotify();
805 }
806 if (peer == null) {
807 addNotify();
808 }
809 Dimension newSize = getPreferredSize();
810 if (peer != null) {
811 setClientSize(newSize.width, newSize.height);
812 }
813
814 if(beforeFirstShow) {
815 isPacked = true;
816 }
817
818 validateUnconditionally();
819 }
820
821 /**
822 * Sets the minimum size of this window to a constant
823 * value. Subsequent calls to {@code getMinimumSize}
824 * will always return this value. If current window's
825 * size is less than {@code minimumSize} the size of the
826 * window is automatically enlarged to honor the minimum size.
827 * <p>
828 * If the {@code setSize} or {@code setBounds} methods
829 * are called afterwards with a width or height less than
830 * that was specified by the {@code setMinimumSize} method
831 * the window is automatically enlarged to meet
832 * the {@code minimumSize} value. The {@code minimumSize}
833 * value also affects the behaviour of the {@code pack} method.
834 * <p>
835 * The default behavior is restored by setting the minimum size
836 * parameter to the {@code null} value.
837 * <p>
838 * Resizing operation may be restricted if the user tries
839 * to resize window below the {@code minimumSize} value.
840 * This behaviour is platform-dependent.
841 *
842 * @param minimumSize the new minimum size of this window
843 * @see Component#setMinimumSize
844 * @see #getMinimumSize
845 * @see #isMinimumSizeSet
846 * @see #setSize(Dimension)
847 * @see #pack
848 * @since 1.6
849 */
850 public void setMinimumSize(Dimension minimumSize) {
851 synchronized (getTreeLock()) {
852 super.setMinimumSize(minimumSize);
853 Dimension size = getSize();
854 if (isMinimumSizeSet()) {
855 if (size.width < minimumSize.width || size.height < minimumSize.height) {
856 int nw = Math.max(width, minimumSize.width);
857 int nh = Math.max(height, minimumSize.height);
858 setSize(nw, nh);
859 }
860 }
861 if (peer != null) {
862 ((WindowPeer)peer).updateMinimumSize();
863 }
864 }
865 }
866
867 /**
868 * {@inheritDoc}
869 * <p>
870 * The {@code d.width} and {@code d.height} values
871 * are automatically enlarged if either is less than
872 * the minimum size as specified by previous call to
873 * {@code setMinimumSize}.
874 * <p>
875 * The method changes the geometry-related data. Therefore,
876 * the native windowing system may ignore such requests, or it may modify
877 * the requested data, so that the {@code Window} object is placed and sized
878 * in a way that corresponds closely to the desktop settings.
879 *
880 * @see #getSize
881 * @see #setBounds
882 * @see #setMinimumSize
883 * @since 1.6
884 */
885 public void setSize(Dimension d) {
886 super.setSize(d);
887 }
888
889 /**
890 * {@inheritDoc}
891 * <p>
892 * The {@code width} and {@code height} values
893 * are automatically enlarged if either is less than
894 * the minimum size as specified by previous call to
895 * {@code setMinimumSize}.
896 * <p>
897 * The method changes the geometry-related data. Therefore,
898 * the native windowing system may ignore such requests, or it may modify
899 * the requested data, so that the {@code Window} object is placed and sized
900 * in a way that corresponds closely to the desktop settings.
901 *
902 * @see #getSize
903 * @see #setBounds
904 * @see #setMinimumSize
905 * @since 1.6
906 */
907 public void setSize(int width, int height) {
908 super.setSize(width, height);
909 }
910
911 /**
912 * {@inheritDoc}
913 * <p>
914 * The method changes the geometry-related data. Therefore,
915 * the native windowing system may ignore such requests, or it may modify
916 * the requested data, so that the {@code Window} object is placed and sized
917 * in a way that corresponds closely to the desktop settings.
918 */
919 @Override
920 public void setLocation(int x, int y) {
921 super.setLocation(x, y);
922 }
923
924 /**
925 * {@inheritDoc}
926 * <p>
927 * The method changes the geometry-related data. Therefore,
928 * the native windowing system may ignore such requests, or it may modify
929 * the requested data, so that the {@code Window} object is placed and sized
930 * in a way that corresponds closely to the desktop settings.
931 */
932 @Override
933 public void setLocation(Point p) {
934 super.setLocation(p);
935 }
936
937 /**
938 * @deprecated As of JDK version 1.1,
939 * replaced by {@code setBounds(int, int, int, int)}.
940 */
941 @Deprecated
942 public void reshape(int x, int y, int width, int height) {
943 if (isMinimumSizeSet()) {
944 Dimension minSize = getMinimumSize();
945 if (width < minSize.width) {
946 width = minSize.width;
947 }
948 if (height < minSize.height) {
949 height = minSize.height;
950 }
951 }
952 super.reshape(x, y, width, height);
953 }
954
955 void setClientSize(int w, int h) {
956 synchronized (getTreeLock()) {
957 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE);
958 setBounds(x, y, w, h);
959 }
960 }
961
962 static private final AtomicBoolean
963 beforeFirstWindowShown = new AtomicBoolean(true);
964
965 final void closeSplashScreen() {
966 if (isTrayIconWindow) {
967 return;
968 }
969 if (beforeFirstWindowShown.getAndSet(false)) {
970 // We don't use SplashScreen.getSplashScreen() to avoid instantiating
971 // the object if it hasn't been requested by user code explicitly
972 SunToolkit.closeSplashScreen();
973 SplashScreen.markClosed();
974 }
975 }
976
977 /**
978 * Shows or hides this {@code Window} depending on the value of parameter
979 * {@code b}.
980 * <p>
981 * If the method shows the window then the window is also made
982 * focused under the following conditions:
983 * <ul>
984 * <li> The {@code Window} meets the requirements outlined in the
985 * {@link #isFocusableWindow} method.
986 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value.
987 * <li> Native windowing system allows the {@code Window} to get focused.
988 * </ul>
989 * There is an exception for the second condition (the value of the
990 * {@code autoRequestFocus} property). The property is not taken into account if the
991 * window is a modal dialog, which blocks the currently focused window.
992 * <p>
993 * Developers must never assume that the window is the focused or active window
994 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event.
995 * @param b if {@code true}, makes the {@code Window} visible,
996 * otherwise hides the {@code Window}.
997 * If the {@code Window} and/or its owner
998 * are not yet displayable, both are made displayable. The
999 * {@code Window} will be validated prior to being made visible.
1000 * If the {@code Window} is already visible, this will bring the
1001 * {@code Window} to the front.<p>
1002 * If {@code false}, hides this {@code Window}, its subcomponents, and all
1003 * of its owned children.
1004 * The {@code Window} and its subcomponents can be made visible again
1005 * with a call to {@code #setVisible(true)}.
1006 * @see java.awt.Component#isDisplayable
1007 * @see java.awt.Component#setVisible
1008 * @see java.awt.Window#toFront
1009 * @see java.awt.Window#dispose
1010 * @see java.awt.Window#setAutoRequestFocus
1011 * @see java.awt.Window#isFocusableWindow
1012 */
1013 public void setVisible(boolean b) {
1014 super.setVisible(b);
1015 }
1016
1017 /**
1018 * Makes the Window visible. If the Window and/or its owner
1019 * are not yet displayable, both are made displayable. The
1020 * Window will be validated prior to being made visible.
1021 * If the Window is already visible, this will bring the Window
1022 * to the front.
1023 * @see Component#isDisplayable
1024 * @see #toFront
1025 * @deprecated As of JDK version 1.5, replaced by
1026 * {@link #setVisible(boolean)}.
1027 */
1028 @Deprecated
1029 public void show() {
1030 if (peer == null) {
1031 addNotify();
1032 }
1033 validateUnconditionally();
1034
1035 isInShow = true;
1036 if (visible) {
1037 toFront();
1038 } else {
1039 beforeFirstShow = false;
1040 closeSplashScreen();
1041 Dialog.checkShouldBeBlocked(this);
1042 super.show();
1043 locationByPlatform = false;
1044 for (int i = 0; i < ownedWindowList.size(); i++) {
1045 Window child = ownedWindowList.elementAt(i).get();
1046 if ((child != null) && child.showWithParent) {
1047 child.show();
1048 child.showWithParent = false;
1049 } // endif
1050 } // endfor
1051 if (!isModalBlocked()) {
1052 updateChildrenBlocking();
1053 } else {
1054 // fix for 6532736: after this window is shown, its blocker
1055 // should be raised to front
1056 modalBlocker.toFront_NoClientCode();
1057 }
1058 if (this instanceof Frame || this instanceof Dialog) {
1059 updateChildFocusableWindowState(this);
1060 }
1061 }
1062 isInShow = false;
1063
1064 // If first time shown, generate WindowOpened event
1065 if ((state & OPENED) == 0) {
1066 postWindowEvent(WindowEvent.WINDOW_OPENED);
1067 state |= OPENED;
1068 }
1069 }
1070
1071 static void updateChildFocusableWindowState(Window w) {
1072 if (w.getPeer() != null && w.isShowing()) {
1073 ((WindowPeer)w.getPeer()).updateFocusableWindowState();
1074 }
1075 for (int i = 0; i < w.ownedWindowList.size(); i++) {
1076 Window child = w.ownedWindowList.elementAt(i).get();
1077 if (child != null) {
1078 updateChildFocusableWindowState(child);
1079 }
1080 }
1081 }
1082
1083 synchronized void postWindowEvent(int id) {
1084 if (windowListener != null
1085 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0
1086 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) {
1087 WindowEvent e = new WindowEvent(this, id);
1088 Toolkit.getEventQueue().postEvent(e);
1089 }
1090 }
1091
1092 /**
1093 * Hide this Window, its subcomponents, and all of its owned children.
1094 * The Window and its subcomponents can be made visible again
1095 * with a call to {@code show}.
1096 * </p>
1097 * @see #show
1098 * @see #dispose
1099 * @deprecated As of JDK version 1.5, replaced by
1100 * {@link #setVisible(boolean)}.
1101 */
1102 @Deprecated
1103 public void hide() {
1104 synchronized(ownedWindowList) {
1105 for (int i = 0; i < ownedWindowList.size(); i++) {
1106 Window child = ownedWindowList.elementAt(i).get();
1107 if ((child != null) && child.visible) {
1108 child.hide();
1109 child.showWithParent = true;
1110 }
1111 }
1112 }
1113 if (isModalBlocked()) {
1114 modalBlocker.unblockWindow(this);
1115 }
1116 super.hide();
1117 }
1118
1119 final void clearMostRecentFocusOwnerOnHide() {
1120 /* do nothing */
1121 }
1122
1123 /**
1124 * Releases all of the native screen resources used by this
1125 * {@code Window}, its subcomponents, and all of its owned
1126 * children. That is, the resources for these {@code Component}s
1127 * will be destroyed, any memory they consume will be returned to the
1128 * OS, and they will be marked as undisplayable.
1129 * <p>
1130 * The {@code Window} and its subcomponents can be made displayable
1131 * again by rebuilding the native resources with a subsequent call to
1132 * {@code pack} or {@code show}. The states of the recreated
1133 * {@code Window} and its subcomponents will be identical to the
1134 * states of these objects at the point where the {@code Window}
1135 * was disposed (not accounting for additional modifications between
1136 * those actions).
1137 * <p>
1138 * <b>Note</b>: When the last displayable window
1139 * within the Java virtual machine (VM) is disposed of, the VM may
1140 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown">
1141 * AWT Threading Issues</a> for more information.
1142 * @see Component#isDisplayable
1143 * @see #pack
1144 * @see #show
1145 */
1146 public void dispose() {
1147 doDispose();
1148 }
1149
1150 /*
1151 * Fix for 4872170.
1152 * If dispose() is called on parent then its children have to be disposed as well
1153 * as reported in javadoc. So we need to implement this functionality even if a
1154 * child overrides dispose() in a wrong way without calling super.dispose().
1155 */
1156 void disposeImpl() {
1157 dispose();
1158 if (getPeer() != null) {
1159 doDispose();
1160 }
1161 }
1162
1163 void doDispose() {
1164 class DisposeAction implements Runnable {
1165 public void run() {
1166 disposing = true;
1167 try {
1168 // Check if this window is the fullscreen window for the
1169 // device. Exit the fullscreen mode prior to disposing
1170 // of the window if that's the case.
1171 GraphicsDevice gd = getGraphicsConfiguration().getDevice();
1172 if (gd.getFullScreenWindow() == Window.this) {
1173 gd.setFullScreenWindow(null);
1174 }
1175
1176 Object[] ownedWindowArray;
1177 synchronized(ownedWindowList) {
1178 ownedWindowArray = new Object[ownedWindowList.size()];
1179 ownedWindowList.copyInto(ownedWindowArray);
1180 }
1181 for (int i = 0; i < ownedWindowArray.length; i++) {
1182 Window child = (Window) (((WeakReference)
1183 (ownedWindowArray[i])).get());
1184 if (child != null) {
1185 child.disposeImpl();
1186 }
1187 }
1188 hide();
1189 beforeFirstShow = true;
1190 removeNotify();
1191 synchronized (inputContextLock) {
1192 if (inputContext != null) {
1193 inputContext.dispose();
1194 inputContext = null;
1195 }
1196 }
1197 clearCurrentFocusCycleRootOnHide();
1198 } finally {
1199 disposing = false;
1200 }
1201 }
1202 }
1203 boolean fireWindowClosedEvent = isDisplayable();
1204 DisposeAction action = new DisposeAction();
1205 if (EventQueue.isDispatchThread()) {
1206 action.run();
1207 }
1208 else {
1209 try {
1210 EventQueue.invokeAndWait(this, action);
1211 }
1212 catch (InterruptedException e) {
1213 System.err.println("Disposal was interrupted:");
1214 e.printStackTrace();
1215 }
1216 catch (InvocationTargetException e) {
1217 System.err.println("Exception during disposal:");
1218 e.printStackTrace();
1219 }
1220 }
1221 // Execute outside the Runnable because postWindowEvent is
1222 // synchronized on (this). We don't need to synchronize the call
1223 // on the EventQueue anyways.
1224 if (fireWindowClosedEvent) {
1225 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1226 }
1227 }
1228
1229 /*
1230 * Should only be called while holding the tree lock.
1231 * It's overridden here because parent == owner in Window,
1232 * and we shouldn't adjust counter on owner
1233 */
1234 void adjustListeningChildrenOnParent(long mask, int num) {
1235 }
1236
1237 // Should only be called while holding tree lock
1238 void adjustDecendantsOnParent(int num) {
1239 // do nothing since parent == owner and we shouldn't
1240 // ajust counter on owner
1241 }
1242
1243 /**
1244 * If this Window is visible, brings this Window to the front and may make
1245 * it the focused Window.
1246 * <p>
1247 * Places this Window at the top of the stacking order and shows it in
1248 * front of any other Windows in this VM. No action will take place if this
1249 * Window is not visible. Some platforms do not allow Windows which own
1250 * other Windows to appear on top of those owned Windows. Some platforms
1251 * may not permit this VM to place its Windows above windows of native
1252 * applications, or Windows of other VMs. This permission may depend on
1253 * whether a Window in this VM is already focused. Every attempt will be
1254 * made to move this Window as high as possible in the stacking order;
1255 * however, developers should not assume that this method will move this
1256 * Window above all other windows in every situation.
1257 * <p>
1258 * Developers must never assume that this Window is the focused or active
1259 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1260 * event. On platforms where the top-most window is the focused window, this
1261 * method will <b>probably</b> focus this Window (if it is not already focused)
1262 * under the following conditions:
1263 * <ul>
1264 * <li> The window meets the requirements outlined in the
1265 * {@link #isFocusableWindow} method.
1266 * <li> The window's property {@code autoRequestFocus} is of the
1267 * {@code true} value.
1268 * <li> Native windowing system allows the window to get focused.
1269 * </ul>
1270 * On platforms where the stacking order does not typically affect the focused
1271 * window, this method will <b>probably</b> leave the focused and active
1272 * Windows unchanged.
1273 * <p>
1274 * If this method causes this Window to be focused, and this Window is a
1275 * Frame or a Dialog, it will also become activated. If this Window is
1276 * focused, but it is not a Frame or a Dialog, then the first Frame or
1277 * Dialog that is an owner of this Window will be activated.
1278 * <p>
1279 * If this window is blocked by modal dialog, then the blocking dialog
1280 * is brought to the front and remains above the blocked window.
1281 *
1282 * @see #toBack
1283 * @see #setAutoRequestFocus
1284 * @see #isFocusableWindow
1285 */
1286 public void toFront() {
1287 toFront_NoClientCode();
1288 }
1289
1290 // This functionality is implemented in a final package-private method
1291 // to insure that it cannot be overridden by client subclasses.
1292 final void toFront_NoClientCode() {
1293 if (visible) {
1294 WindowPeer peer = (WindowPeer)this.peer;
1295 if (peer != null) {
1296 peer.toFront();
1297 }
1298 if (isModalBlocked()) {
1299 modalBlocker.toFront_NoClientCode();
1300 }
1301 }
1302 }
1303
1304 /**
1305 * If this Window is visible, sends this Window to the back and may cause
1306 * it to lose focus or activation if it is the focused or active Window.
1307 * <p>
1308 * Places this Window at the bottom of the stacking order and shows it
1309 * behind any other Windows in this VM. No action will take place is this
1310 * Window is not visible. Some platforms do not allow Windows which are
1311 * owned by other Windows to appear below their owners. Every attempt will
1312 * be made to move this Window as low as possible in the stacking order;
1313 * however, developers should not assume that this method will move this
1314 * Window below all other windows in every situation.
1315 * <p>
1316 * Because of variations in native windowing systems, no guarantees about
1317 * changes to the focused and active Windows can be made. Developers must
1318 * never assume that this Window is no longer the focused or active Window
1319 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1320 * event. On platforms where the top-most window is the focused window,
1321 * this method will <b>probably</b> cause this Window to lose focus. In
1322 * that case, the next highest, focusable Window in this VM will receive
1323 * focus. On platforms where the stacking order does not typically affect
1324 * the focused window, this method will <b>probably</b> leave the focused
1325 * and active Windows unchanged.
1326 *
1327 * @see #toFront
1328 */
1329 public void toBack() {
1330 toBack_NoClientCode();
1331 }
1332
1333 // This functionality is implemented in a final package-private method
1334 // to insure that it cannot be overridden by client subclasses.
1335 final void toBack_NoClientCode() {
1336 if(isAlwaysOnTop()) {
1337 try {
1338 setAlwaysOnTop(false);
1339 }catch(SecurityException e) {
1340 }
1341 }
1342 if (visible) {
1343 WindowPeer peer = (WindowPeer)this.peer;
1344 if (peer != null) {
1345 peer.toBack();
1346 }
1347 }
1348 }
1349
1350 /**
1351 * Returns the toolkit of this frame.
1352 * @return the toolkit of this window.
1353 * @see Toolkit
1354 * @see Toolkit#getDefaultToolkit
1355 * @see Component#getToolkit
1356 */
1357 public Toolkit getToolkit() {
1358 return Toolkit.getDefaultToolkit();
1359 }
1360
1361 /**
1362 * Gets the warning string that is displayed with this window.
1363 * If this window is insecure, the warning string is displayed
1364 * somewhere in the visible area of the window. A window is
1365 * insecure if there is a security manager, and the security
1366 * manager's {@code checkTopLevelWindow} method returns
1367 * {@code false} when this window is passed to it as an
1368 * argument.
1369 * <p>
1370 * If the window is secure, then {@code getWarningString}
1371 * returns {@code null}. If the window is insecure, this
1372 * method checks for the system property
1373 * {@code awt.appletWarning}
1374 * and returns the string value of that property.
1375 * @return the warning string for this window.
1376 * @see java.lang.SecurityManager#checkTopLevelWindow(java.lang.Object)
1377 */
1378 public final String getWarningString() {
1379 return warningString;
1380 }
1381
1382 private void setWarningString() {
1383 warningString = null;
1384 SecurityManager sm = System.getSecurityManager();
1385 if (sm != null) {
1386 if (!sm.checkTopLevelWindow(this)) {
1387 // make sure the privileged action is only
1388 // for getting the property! We don't want the
1389 // above checkTopLevelWindow call to always succeed!
1390 warningString = AccessController.doPrivileged(
1391 new GetPropertyAction("awt.appletWarning",
1392 "Java Applet Window"));
1393 }
1394 }
1395 }
1396
1397 /**
1398 * Gets the {@code Locale} object that is associated
1399 * with this window, if the locale has been set.
1400 * If no locale has been set, then the default locale
1401 * is returned.
1402 * @return the locale that is set for this window.
1403 * @see java.util.Locale
1404 * @since JDK1.1
1405 */
1406 public Locale getLocale() {
1407 if (this.locale == null) {
1408 return Locale.getDefault();
1409 }
1410 return this.locale;
1411 }
1412
1413 /**
1414 * Gets the input context for this window. A window always has an input context,
1415 * which is shared by subcomponents unless they create and set their own.
1416 * @see Component#getInputContext
1417 * @since 1.2
1418 */
1419 public InputContext getInputContext() {
1420 synchronized (inputContextLock) {
1421 if (inputContext == null) {
1422 inputContext = InputContext.getInstance();
1423 }
1424 }
1425 return inputContext;
1426 }
1427
1428 /**
1429 * Set the cursor image to a specified cursor.
1430 * <p>
1431 * The method may have no visual effect if the Java platform
1432 * implementation and/or the native system do not support
1433 * changing the mouse cursor shape.
1434 * @param cursor One of the constants defined
1435 * by the {@code Cursor} class. If this parameter is null
1436 * then the cursor for this window will be set to the type
1437 * Cursor.DEFAULT_CURSOR.
1438 * @see Component#getCursor
1439 * @see Cursor
1440 * @since JDK1.1
1441 */
1442 public void setCursor(Cursor cursor) {
1443 if (cursor == null) {
1444 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1445 }
1446 super.setCursor(cursor);
1447 }
1448
1449 /**
1450 * Returns the owner of this window.
1451 * @since 1.2
1452 */
1453 public Window getOwner() {
1454 return getOwner_NoClientCode();
1455 }
1456 final Window getOwner_NoClientCode() {
1457 return (Window)parent;
1458 }
1459
1460 /**
1461 * Return an array containing all the windows this
1462 * window currently owns.
1463 * @since 1.2
1464 */
1465 public Window[] getOwnedWindows() {
1466 return getOwnedWindows_NoClientCode();
1467 }
1468 final Window[] getOwnedWindows_NoClientCode() {
1469 Window realCopy[];
1470
1471 synchronized(ownedWindowList) {
1472 // Recall that ownedWindowList is actually a Vector of
1473 // WeakReferences and calling get() on one of these references
1474 // may return null. Make two arrays-- one the size of the
1475 // Vector (fullCopy with size fullSize), and one the size of
1476 // all non-null get()s (realCopy with size realSize).
1477 int fullSize = ownedWindowList.size();
1478 int realSize = 0;
1479 Window fullCopy[] = new Window[fullSize];
1480
1481 for (int i = 0; i < fullSize; i++) {
1482 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1483
1484 if (fullCopy[realSize] != null) {
1485 realSize++;
1486 }
1487 }
1488
1489 if (fullSize != realSize) {
1490 realCopy = Arrays.copyOf(fullCopy, realSize);
1491 } else {
1492 realCopy = fullCopy;
1493 }
1494 }
1495
1496 return realCopy;
1497 }
1498
1499 boolean isModalBlocked() {
1500 return modalBlocker != null;
1501 }
1502
1503 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1504 this.modalBlocker = blocked ? blocker : null;
1505 if (peerCall) {
1506 WindowPeer peer = (WindowPeer)this.peer;
1507 if (peer != null) {
1508 peer.setModalBlocked(blocker, blocked);
1509 }
1510 }
1511 }
1512
1513 Dialog getModalBlocker() {
1514 return modalBlocker;
1515 }
1516
1517 /*
1518 * Returns a list of all displayable Windows, i. e. all the
1519 * Windows which peer is not null.
1520 *
1521 * @see #addNotify
1522 * @see #removeNotify
1523 */
1524 static IdentityArrayList<Window> getAllWindows() {
1525 synchronized (allWindows) {
1526 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1527 v.addAll(allWindows);
1528 return v;
1529 }
1530 }
1531
1532 static IdentityArrayList<Window> getAllUnblockedWindows() {
1533 synchronized (allWindows) {
1534 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1535 for (int i = 0; i < allWindows.size(); i++) {
1536 Window w = allWindows.get(i);
1537 if (!w.isModalBlocked()) {
1538 unblocked.add(w);
1539 }
1540 }
1541 return unblocked;
1542 }
1543 }
1544
1545 private static Window[] getWindows(AppContext appContext) {
1546 synchronized (Window.class) {
1547 Window realCopy[];
1548 @SuppressWarnings("unchecked")
1549 Vector<WeakReference<Window>> windowList =
1550 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1551 if (windowList != null) {
1552 int fullSize = windowList.size();
1553 int realSize = 0;
1554 Window fullCopy[] = new Window[fullSize];
1555 for (int i = 0; i < fullSize; i++) {
1556 Window w = windowList.get(i).get();
1557 if (w != null) {
1558 fullCopy[realSize++] = w;
1559 }
1560 }
1561 if (fullSize != realSize) {
1562 realCopy = Arrays.copyOf(fullCopy, realSize);
1563 } else {
1564 realCopy = fullCopy;
1565 }
1566 } else {
1567 realCopy = new Window[0];
1568 }
1569 return realCopy;
1570 }
1571 }
1572
1573 /**
1574 * Returns an array of all {@code Window}s, both owned and ownerless,
1575 * created by this application.
1576 * If called from an applet, the array includes only the {@code Window}s
1577 * accessible by that applet.
1578 * <p>
1579 * <b>Warning:</b> this method may return system created windows, such
1580 * as a print dialog. Applications should not assume the existence of
1581 * these dialogs, nor should an application assume anything about these
1582 * dialogs such as component positions, {@code LayoutManager}s
1583 * or serialization.
1584 *
1585 * @see Frame#getFrames
1586 * @see Window#getOwnerlessWindows
1587 *
1588 * @since 1.6
1589 */
1590 public static Window[] getWindows() {
1591 return getWindows(AppContext.getAppContext());
1592 }
1593
1594 /**
1595 * Returns an array of all {@code Window}s created by this application
1596 * that have no owner. They include {@code Frame}s and ownerless
1597 * {@code Dialog}s and {@code Window}s.
1598 * If called from an applet, the array includes only the {@code Window}s
1599 * accessible by that applet.
1600 * <p>
1601 * <b>Warning:</b> this method may return system created windows, such
1602 * as a print dialog. Applications should not assume the existence of
1603 * these dialogs, nor should an application assume anything about these
1604 * dialogs such as component positions, {@code LayoutManager}s
1605 * or serialization.
1606 *
1607 * @see Frame#getFrames
1608 * @see Window#getWindows()
1609 *
1610 * @since 1.6
1611 */
1612 public static Window[] getOwnerlessWindows() {
1613 Window[] allWindows = Window.getWindows();
1614
1615 int ownerlessCount = 0;
1616 for (Window w : allWindows) {
1617 if (w.getOwner() == null) {
1618 ownerlessCount++;
1619 }
1620 }
1621
1622 Window[] ownerless = new Window[ownerlessCount];
1623 int c = 0;
1624 for (Window w : allWindows) {
1625 if (w.getOwner() == null) {
1626 ownerless[c++] = w;
1627 }
1628 }
1629
1630 return ownerless;
1631 }
1632
1633 Window getDocumentRoot() {
1634 synchronized (getTreeLock()) {
1635 Window w = this;
1636 while (w.getOwner() != null) {
1637 w = w.getOwner();
1638 }
1639 return w;
1640 }
1641 }
1642
1643 /**
1644 * Specifies the modal exclusion type for this window. If a window is modal
1645 * excluded, it is not blocked by some modal dialogs. See {@link
1646 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1647 * possible modal exclusion types.
1648 * <p>
1649 * If the given type is not supported, {@code NO_EXCLUDE} is used.
1650 * <p>
1651 * Note: changing the modal exclusion type for a visible window may have no
1652 * effect until it is hidden and then shown again.
1653 *
1654 * @param exclusionType the modal exclusion type for this window; a {@code null}
1655 * value is equivivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1656 * NO_EXCLUDE}
1657 * @throws SecurityException if the calling thread does not have permission
1658 * to set the modal exclusion property to the window with the given
1659 * {@code exclusionType}
1660 * @see java.awt.Dialog.ModalExclusionType
1661 * @see java.awt.Window#getModalExclusionType
1662 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1663 *
1664 * @since 1.6
1665 */
1666 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1667 if (exclusionType == null) {
1668 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1669 }
1670 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1671 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1672 }
1673 if (modalExclusionType == exclusionType) {
1674 return;
1675 }
1676 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1677 SecurityManager sm = System.getSecurityManager();
1678 if (sm != null) {
1679 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION);
1680 }
1681 }
1682 modalExclusionType = exclusionType;
1683
1684 // if we want on-fly changes, we need to uncomment the lines below
1685 // and override the method in Dialog to use modalShow() instead
1686 // of updateChildrenBlocking()
1687 /*
1688 if (isModalBlocked()) {
1689 modalBlocker.unblockWindow(this);
1690 }
1691 Dialog.checkShouldBeBlocked(this);
1692 updateChildrenBlocking();
1693 */
1694 }
1695
1696 /**
1697 * Returns the modal exclusion type of this window.
1698 *
1699 * @return the modal exclusion type of this window
1700 *
1701 * @see java.awt.Dialog.ModalExclusionType
1702 * @see java.awt.Window#setModalExclusionType
1703 *
1704 * @since 1.6
1705 */
1706 public Dialog.ModalExclusionType getModalExclusionType() {
1707 return modalExclusionType;
1708 }
1709
1710 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1711 if ((modalExclusionType != null) &&
1712 modalExclusionType.compareTo(exclusionType) >= 0)
1713 {
1714 return true;
1715 }
1716 Window owner = getOwner_NoClientCode();
1717 return (owner != null) && owner.isModalExcluded(exclusionType);
1718 }
1719
1720 void updateChildrenBlocking() {
1721 Vector<Window> childHierarchy = new Vector<Window>();
1722 Window[] ownedWindows = getOwnedWindows();
1723 for (int i = 0; i < ownedWindows.length; i++) {
1724 childHierarchy.add(ownedWindows[i]);
1725 }
1726 int k = 0;
1727 while (k < childHierarchy.size()) {
1728 Window w = childHierarchy.get(k);
1729 if (w.isVisible()) {
1730 if (w.isModalBlocked()) {
1731 Dialog blocker = w.getModalBlocker();
1732 blocker.unblockWindow(w);
1733 }
1734 Dialog.checkShouldBeBlocked(w);
1735 Window[] wOwned = w.getOwnedWindows();
1736 for (int j = 0; j < wOwned.length; j++) {
1737 childHierarchy.add(wOwned[j]);
1738 }
1739 }
1740 k++;
1741 }
1742 }
1743
1744 /**
1745 * Adds the specified window listener to receive window events from
1746 * this window.
1747 * If l is null, no exception is thrown and no action is performed.
1748 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1749 * >AWT Threading Issues</a> for details on AWT's threading model.
1750 *
1751 * @param l the window listener
1752 * @see #removeWindowListener
1753 * @see #getWindowListeners
1754 */
1755 public synchronized void addWindowListener(WindowListener l) {
1756 if (l == null) {
1757 return;
1758 }
1759 newEventsOnly = true;
1760 windowListener = AWTEventMulticaster.add(windowListener, l);
1761 }
1762
1763 /**
1764 * Adds the specified window state listener to receive window
1765 * events from this window. If {@code l} is {@code null},
1766 * no exception is thrown and no action is performed.
1767 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1768 * >AWT Threading Issues</a> for details on AWT's threading model.
1769 *
1770 * @param l the window state listener
1771 * @see #removeWindowStateListener
1772 * @see #getWindowStateListeners
1773 * @since 1.4
1774 */
1775 public synchronized void addWindowStateListener(WindowStateListener l) {
1776 if (l == null) {
1777 return;
1778 }
1779 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1780 newEventsOnly = true;
1781 }
1782
1783 /**
1784 * Adds the specified window focus listener to receive window events
1785 * from this window.
1786 * If l is null, no exception is thrown and no action is performed.
1787 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1788 * >AWT Threading Issues</a> for details on AWT's threading model.
1789 *
1790 * @param l the window focus listener
1791 * @see #removeWindowFocusListener
1792 * @see #getWindowFocusListeners
1793 * @since 1.4
1794 */
1795 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1796 if (l == null) {
1797 return;
1798 }
1799 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1800 newEventsOnly = true;
1801 }
1802
1803 /**
1804 * Removes the specified window listener so that it no longer
1805 * receives window events from this window.
1806 * If l is null, no exception is thrown and no action is performed.
1807 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1808 * >AWT Threading Issues</a> for details on AWT's threading model.
1809 *
1810 * @param l the window listener
1811 * @see #addWindowListener
1812 * @see #getWindowListeners
1813 */
1814 public synchronized void removeWindowListener(WindowListener l) {
1815 if (l == null) {
1816 return;
1817 }
1818 windowListener = AWTEventMulticaster.remove(windowListener, l);
1819 }
1820
1821 /**
1822 * Removes the specified window state listener so that it no
1823 * longer receives window events from this window. If
1824 * {@code l} is {@code null}, no exception is thrown and
1825 * no action is performed.
1826 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1827 * >AWT Threading Issues</a> for details on AWT's threading model.
1828 *
1829 * @param l the window state listener
1830 * @see #addWindowStateListener
1831 * @see #getWindowStateListeners
1832 * @since 1.4
1833 */
1834 public synchronized void removeWindowStateListener(WindowStateListener l) {
1835 if (l == null) {
1836 return;
1837 }
1838 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1839 }
1840
1841 /**
1842 * Removes the specified window focus listener so that it no longer
1843 * receives window events from this window.
1844 * If l is null, no exception is thrown and no action is performed.
1845 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1846 * >AWT Threading Issues</a> for details on AWT's threading model.
1847 *
1848 * @param l the window focus listener
1849 * @see #addWindowFocusListener
1850 * @see #getWindowFocusListeners
1851 * @since 1.4
1852 */
1853 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1854 if (l == null) {
1855 return;
1856 }
1857 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1858 }
1859
1860 /**
1861 * Returns an array of all the window listeners
1862 * registered on this window.
1863 *
1864 * @return all of this window's {@code WindowListener}s
1865 * or an empty array if no window
1866 * listeners are currently registered
1867 *
1868 * @see #addWindowListener
1869 * @see #removeWindowListener
1870 * @since 1.4
1871 */
1872 public synchronized WindowListener[] getWindowListeners() {
1873 return getListeners(WindowListener.class);
1874 }
1875
1876 /**
1877 * Returns an array of all the window focus listeners
1878 * registered on this window.
1879 *
1880 * @return all of this window's {@code WindowFocusListener}s
1881 * or an empty array if no window focus
1882 * listeners are currently registered
1883 *
1884 * @see #addWindowFocusListener
1885 * @see #removeWindowFocusListener
1886 * @since 1.4
1887 */
1888 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1889 return getListeners(WindowFocusListener.class);
1890 }
1891
1892 /**
1893 * Returns an array of all the window state listeners
1894 * registered on this window.
1895 *
1896 * @return all of this window's {@code WindowStateListener}s
1897 * or an empty array if no window state
1898 * listeners are currently registered
1899 *
1900 * @see #addWindowStateListener
1901 * @see #removeWindowStateListener
1902 * @since 1.4
1903 */
1904 public synchronized WindowStateListener[] getWindowStateListeners() {
1905 return getListeners(WindowStateListener.class);
1906 }
1907
1908
1909 /**
1910 * Returns an array of all the objects currently registered
1911 * as <code><em>Foo</em>Listener</code>s
1912 * upon this {@code Window}.
1913 * <code><em>Foo</em>Listener</code>s are registered using the
1914 * <code>add<em>Foo</em>Listener</code> method.
1915 *
1916 * <p>
1917 *
1918 * You can specify the {@code listenerType} argument
1919 * with a class literal, such as
1920 * <code><em>Foo</em>Listener.class</code>.
1921 * For example, you can query a
1922 * {@code Window} {@code w}
1923 * for its window listeners with the following code:
1924 *
1925 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1926 *
1927 * If no such listeners exist, this method returns an empty array.
1928 *
1929 * @param listenerType the type of listeners requested; this parameter
1930 * should specify an interface that descends from
1931 * {@code java.util.EventListener}
1932 * @return an array of all objects registered as
1933 * <code><em>Foo</em>Listener</code>s on this window,
1934 * or an empty array if no such
1935 * listeners have been added
1936 * @exception ClassCastException if {@code listenerType}
1937 * doesn't specify a class or interface that implements
1938 * {@code java.util.EventListener}
1939 * @exception NullPointerException if {@code listenerType} is {@code null}
1940 *
1941 * @see #getWindowListeners
1942 * @since 1.3
1943 */
1944 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1945 EventListener l = null;
1946 if (listenerType == WindowFocusListener.class) {
1947 l = windowFocusListener;
1948 } else if (listenerType == WindowStateListener.class) {
1949 l = windowStateListener;
1950 } else if (listenerType == WindowListener.class) {
1951 l = windowListener;
1952 } else {
1953 return super.getListeners(listenerType);
1954 }
1955 return AWTEventMulticaster.getListeners(l, listenerType);
1956 }
1957
1958 // REMIND: remove when filtering is handled at lower level
1959 boolean eventEnabled(AWTEvent e) {
1960 switch(e.id) {
1961 case WindowEvent.WINDOW_OPENED:
1962 case WindowEvent.WINDOW_CLOSING:
1963 case WindowEvent.WINDOW_CLOSED:
1964 case WindowEvent.WINDOW_ICONIFIED:
1965 case WindowEvent.WINDOW_DEICONIFIED:
1966 case WindowEvent.WINDOW_ACTIVATED:
1967 case WindowEvent.WINDOW_DEACTIVATED:
1968 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1969 windowListener != null) {
1970 return true;
1971 }
1972 return false;
1973 case WindowEvent.WINDOW_GAINED_FOCUS:
1974 case WindowEvent.WINDOW_LOST_FOCUS:
1975 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1976 windowFocusListener != null) {
1977 return true;
1978 }
1979 return false;
1980 case WindowEvent.WINDOW_STATE_CHANGED:
1981 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1982 windowStateListener != null) {
1983 return true;
1984 }
1985 return false;
1986 default:
1987 break;
1988 }
1989 return super.eventEnabled(e);
1990 }
1991
1992 /**
1993 * Processes events on this window. If the event is an
1994 * {@code WindowEvent}, it invokes the
1995 * {@code processWindowEvent} method, else it invokes its
1996 * superclass's {@code processEvent}.
1997 * <p>Note that if the event parameter is {@code null}
1998 * the behavior is unspecified and may result in an
1999 * exception.
2000 *
2001 * @param e the event
2002 */
2003 protected void processEvent(AWTEvent e) {
2004 if (e instanceof WindowEvent) {
2005 switch (e.getID()) {
2006 case WindowEvent.WINDOW_OPENED:
2007 case WindowEvent.WINDOW_CLOSING:
2008 case WindowEvent.WINDOW_CLOSED:
2009 case WindowEvent.WINDOW_ICONIFIED:
2010 case WindowEvent.WINDOW_DEICONIFIED:
2011 case WindowEvent.WINDOW_ACTIVATED:
2012 case WindowEvent.WINDOW_DEACTIVATED:
2013 processWindowEvent((WindowEvent)e);
2014 break;
2015 case WindowEvent.WINDOW_GAINED_FOCUS:
2016 case WindowEvent.WINDOW_LOST_FOCUS:
2017 processWindowFocusEvent((WindowEvent)e);
2018 break;
2019 case WindowEvent.WINDOW_STATE_CHANGED:
2020 processWindowStateEvent((WindowEvent)e);
2021 break;
2022 }
2023 return;
2024 }
2025 super.processEvent(e);
2026 }
2027
2028 /**
2029 * Processes window events occurring on this window by
2030 * dispatching them to any registered WindowListener objects.
2031 * NOTE: This method will not be called unless window events
2032 * are enabled for this component; this happens when one of the
2033 * following occurs:
2034 * <ul>
2035 * <li>A WindowListener object is registered via
2036 * {@code addWindowListener}
2037 * <li>Window events are enabled via {@code enableEvents}
2038 * </ul>
2039 * <p>Note that if the event parameter is {@code null}
2040 * the behavior is unspecified and may result in an
2041 * exception.
2042 *
2043 * @param e the window event
2044 * @see Component#enableEvents
2045 */
2046 protected void processWindowEvent(WindowEvent e) {
2047 WindowListener listener = windowListener;
2048 if (listener != null) {
2049 switch(e.getID()) {
2050 case WindowEvent.WINDOW_OPENED:
2051 listener.windowOpened(e);
2052 break;
2053 case WindowEvent.WINDOW_CLOSING:
2054 listener.windowClosing(e);
2055 break;
2056 case WindowEvent.WINDOW_CLOSED:
2057 listener.windowClosed(e);
2058 break;
2059 case WindowEvent.WINDOW_ICONIFIED:
2060 listener.windowIconified(e);
2061 break;
2062 case WindowEvent.WINDOW_DEICONIFIED:
2063 listener.windowDeiconified(e);
2064 break;
2065 case WindowEvent.WINDOW_ACTIVATED:
2066 listener.windowActivated(e);
2067 break;
2068 case WindowEvent.WINDOW_DEACTIVATED:
2069 listener.windowDeactivated(e);
2070 break;
2071 default:
2072 break;
2073 }
2074 }
2075 }
2076
2077 /**
2078 * Processes window focus event occuring on this window by
2079 * dispatching them to any registered WindowFocusListener objects.
2080 * NOTE: this method will not be called unless window focus events
2081 * are enabled for this window. This happens when one of the
2082 * following occurs:
2083 * <ul>
2084 * <li>a WindowFocusListener is registered via
2085 * {@code addWindowFocusListener}
2086 * <li>Window focus events are enabled via {@code enableEvents}
2087 * </ul>
2088 * <p>Note that if the event parameter is {@code null}
2089 * the behavior is unspecified and may result in an
2090 * exception.
2091 *
2092 * @param e the window focus event
2093 * @see Component#enableEvents
2094 * @since 1.4
2095 */
2096 protected void processWindowFocusEvent(WindowEvent e) {
2097 WindowFocusListener listener = windowFocusListener;
2098 if (listener != null) {
2099 switch (e.getID()) {
2100 case WindowEvent.WINDOW_GAINED_FOCUS:
2101 listener.windowGainedFocus(e);
2102 break;
2103 case WindowEvent.WINDOW_LOST_FOCUS:
2104 listener.windowLostFocus(e);
2105 break;
2106 default:
2107 break;
2108 }
2109 }
2110 }
2111
2112 /**
2113 * Processes window state event occuring on this window by
2114 * dispatching them to any registered {@code WindowStateListener}
2115 * objects.
2116 * NOTE: this method will not be called unless window state events
2117 * are enabled for this window. This happens when one of the
2118 * following occurs:
2119 * <ul>
2120 * <li>a {@code WindowStateListener} is registered via
2121 * {@code addWindowStateListener}
2122 * <li>window state events are enabled via {@code enableEvents}
2123 * </ul>
2124 * <p>Note that if the event parameter is {@code null}
2125 * the behavior is unspecified and may result in an
2126 * exception.
2127 *
2128 * @param e the window state event
2129 * @see java.awt.Component#enableEvents
2130 * @since 1.4
2131 */
2132 protected void processWindowStateEvent(WindowEvent e) {
2133 WindowStateListener listener = windowStateListener;
2134 if (listener != null) {
2135 switch (e.getID()) {
2136 case WindowEvent.WINDOW_STATE_CHANGED:
2137 listener.windowStateChanged(e);
2138 break;
2139 default:
2140 break;
2141 }
2142 }
2143 }
2144
2145 /**
2146 * Implements a debugging hook -- checks to see if
2147 * the user has typed <i>control-shift-F1</i>. If so,
2148 * the list of child windows is dumped to {@code System.out}.
2149 * @param e the keyboard event
2150 */
2151 void preProcessKeyEvent(KeyEvent e) {
2152 // Dump the list of child windows to System.out.
2153 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2154 e.isControlDown() && e.isShiftDown() &&
2155 e.getID() == KeyEvent.KEY_PRESSED) {
2156 list(System.out, 0);
2157 }
2158 }
2159
2160 void postProcessKeyEvent(KeyEvent e) {
2161 // Do nothing
2162 }
2163
2164
2165 /**
2166 * Sets whether this window should always be above other windows. If
2167 * there are multiple always-on-top windows, their relative order is
2168 * unspecified and platform dependent.
2169 * <p>
2170 * If some other window is already always-on-top then the
2171 * relative order between these windows is unspecified (depends on
2172 * platform). No window can be brought to be over the always-on-top
2173 * window except maybe another always-on-top window.
2174 * <p>
2175 * All windows owned by an always-on-top window inherit this state and
2176 * automatically become always-on-top. If a window ceases to be
2177 * always-on-top, the windows that it owns will no longer be
2178 * always-on-top. When an always-on-top window is sent {@link #toBack
2179 * toBack}, its always-on-top state is set to {@code false}.
2180 *
2181 * <p> When this method is called on a window with a value of
2182 * {@code true}, and the window is visible and the platform
2183 * supports always-on-top for this window, the window is immediately
2184 * brought forward, "sticking" it in the top-most position. If the
2185 * window isn`t currently visible, this method sets the always-on-top
2186 * state to {@code true} but does not bring the window forward.
2187 * When the window is later shown, it will be always-on-top.
2188 *
2189 * <p> When this method is called on a window with a value of
2190 * {@code false} the always-on-top state is set to normal. The
2191 * window remains in the top-most position but it`s z-order can be
2192 * changed as for any other window. Calling this method with a value
2193 * of {@code false} on a window that has a normal state has no
2194 * effect. Setting the always-on-top state to false has no effect on
2195 * the relative z-order of the windows if there are no other
2196 * always-on-top windows.
2197 *
2198 * <p><b>Note</b>: some platforms might not support always-on-top
2199 * windows. To detect if always-on-top windows are supported by the
2200 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2201 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2202 * isn't supported by the toolkit or for this window, calling this
2203 * method has no effect.
2204 * <p>
2205 * If a SecurityManager is installed, the calling thread must be
2206 * granted the AWTPermission "setWindowAlwaysOnTop" in
2207 * order to set the value of this property. If this
2208 * permission is not granted, this method will throw a
2209 * SecurityException, and the current value of the property will
2210 * be left unchanged.
2211 *
2212 * @param alwaysOnTop true if the window should always be above other
2213 * windows
2214 * @throws SecurityException if the calling thread does not have
2215 * permission to set the value of always-on-top property
2216 * @see #isAlwaysOnTop
2217 * @see #toFront
2218 * @see #toBack
2219 * @see AWTPermission
2220 * @see #isAlwaysOnTopSupported
2221 * @see Toolkit#isAlwaysOnTopSupported
2222 * @since 1.5
2223 */
2224 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2225 SecurityManager security = System.getSecurityManager();
2226 if (security != null) {
2227 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2228 }
2229
2230 boolean oldAlwaysOnTop;
2231 synchronized(this) {
2232 oldAlwaysOnTop = this.alwaysOnTop;
2233 this.alwaysOnTop = alwaysOnTop;
2234 }
2235 if (oldAlwaysOnTop != alwaysOnTop ) {
2236 if (isAlwaysOnTopSupported()) {
2237 WindowPeer peer = (WindowPeer)this.peer;
2238 synchronized(getTreeLock()) {
2239 if (peer != null) {
2240 peer.updateAlwaysOnTopState();
2241 }
2242 }
2243 }
2244 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2245 }
2246 }
2247
2248 /**
2249 * Returns whether the always-on-top mode is supported for this
2250 * window. Some platforms may not support always-on-top windows, some
2251 * may support only some kinds of top-level windows; for example,
2252 * a platform may not support always-on-top modal dialogs.
2253 * @return {@code true}, if the always-on-top mode is
2254 * supported by the toolkit and for this window,
2255 * {@code false}, if always-on-top mode is not supported
2256 * for this window or toolkit doesn't support always-on-top windows.
2257 * @see #setAlwaysOnTop(boolean)
2258 * @see Toolkit#isAlwaysOnTopSupported
2259 * @since 1.6
2260 */
2261 public boolean isAlwaysOnTopSupported() {
2262 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2263 }
2264
2265
2266 /**
2267 * Returns whether this window is an always-on-top window.
2268 * @return {@code true}, if the window is in always-on-top state,
2269 * {@code false} otherwise
2270 * @see #setAlwaysOnTop
2271 * @since 1.5
2272 */
2273 public final boolean isAlwaysOnTop() {
2274 return alwaysOnTop;
2275 }
2276
2277
2278 /**
2279 * Returns the child Component of this Window that has focus if this Window
2280 * is focused; returns null otherwise.
2281 *
2282 * @return the child Component with focus, or null if this Window is not
2283 * focused
2284 * @see #getMostRecentFocusOwner
2285 * @see #isFocused
2286 */
2287 public Component getFocusOwner() {
2288 return (isFocused())
2289 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2290 getFocusOwner()
2291 : null;
2292 }
2293
2294 /**
2295 * Returns the child Component of this Window that will receive the focus
2296 * when this Window is focused. If this Window is currently focused, this
2297 * method returns the same Component as {@code getFocusOwner()}. If
2298 * this Window is not focused, then the child Component that most recently
2299 * requested focus will be returned. If no child Component has ever
2300 * requested focus, and this is a focusable Window, then this Window's
2301 * initial focusable Component is returned. If no child Component has ever
2302 * requested focus, and this is a non-focusable Window, null is returned.
2303 *
2304 * @return the child Component that will receive focus when this Window is
2305 * focused
2306 * @see #getFocusOwner
2307 * @see #isFocused
2308 * @see #isFocusableWindow
2309 * @since 1.4
2310 */
2311 public Component getMostRecentFocusOwner() {
2312 if (isFocused()) {
2313 return getFocusOwner();
2314 } else {
2315 Component mostRecent =
2316 KeyboardFocusManager.getMostRecentFocusOwner(this);
2317 if (mostRecent != null) {
2318 return mostRecent;
2319 } else {
2320 return (isFocusableWindow())
2321 ? getFocusTraversalPolicy().getInitialComponent(this)
2322 : null;
2323 }
2324 }
2325 }
2326
2327 /**
2328 * Returns whether this Window is active. Only a Frame or a Dialog may be
2329 * active. The native windowing system may denote the active Window or its
2330 * children with special decorations, such as a highlighted title bar. The
2331 * active Window is always either the focused Window, or the first Frame or
2332 * Dialog that is an owner of the focused Window.
2333 *
2334 * @return whether this is the active Window.
2335 * @see #isFocused
2336 * @since 1.4
2337 */
2338 public boolean isActive() {
2339 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2340 getActiveWindow() == this);
2341 }
2342
2343 /**
2344 * Returns whether this Window is focused. If there exists a focus owner,
2345 * the focused Window is the Window that is, or contains, that focus owner.
2346 * If there is no focus owner, then no Window is focused.
2347 * <p>
2348 * If the focused Window is a Frame or a Dialog it is also the active
2349 * Window. Otherwise, the active Window is the first Frame or Dialog that
2350 * is an owner of the focused Window.
2351 *
2352 * @return whether this is the focused Window.
2353 * @see #isActive
2354 * @since 1.4
2355 */
2356 public boolean isFocused() {
2357 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2358 getGlobalFocusedWindow() == this);
2359 }
2360
2361 /**
2362 * Gets a focus traversal key for this Window. (See {@code
2363 * setFocusTraversalKeys} for a full description of each key.)
2364 * <p>
2365 * If the traversal key has not been explicitly set for this Window,
2366 * then this Window's parent's traversal key is returned. If the
2367 * traversal key has not been explicitly set for any of this Window's
2368 * ancestors, then the current KeyboardFocusManager's default traversal key
2369 * is returned.
2370 *
2371 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2372 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2373 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2374 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2375 * @return the AWTKeyStroke for the specified key
2376 * @see Container#setFocusTraversalKeys
2377 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2378 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2379 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2380 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2381 * @throws IllegalArgumentException if id is not one of
2382 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2383 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2384 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2385 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2386 * @since 1.4
2387 */
2388 @SuppressWarnings("unchecked")
2389 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2390 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2391 throw new IllegalArgumentException("invalid focus traversal key identifier");
2392 }
2393
2394 // Okay to return Set directly because it is an unmodifiable view
2395 @SuppressWarnings("rawtypes")
2396 Set keystrokes = (focusTraversalKeys != null)
2397 ? focusTraversalKeys[id]
2398 : null;
2399
2400 if (keystrokes != null) {
2401 return keystrokes;
2402 } else {
2403 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2404 getDefaultFocusTraversalKeys(id);
2405 }
2406 }
2407
2408 /**
2409 * Does nothing because Windows must always be roots of a focus traversal
2410 * cycle. The passed-in value is ignored.
2411 *
2412 * @param focusCycleRoot this value is ignored
2413 * @see #isFocusCycleRoot
2414 * @see Container#setFocusTraversalPolicy
2415 * @see Container#getFocusTraversalPolicy
2416 * @since 1.4
2417 */
2418 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2419 }
2420
2421 /**
2422 * Always returns {@code true} because all Windows must be roots of a
2423 * focus traversal cycle.
2424 *
2425 * @return {@code true}
2426 * @see #setFocusCycleRoot
2427 * @see Container#setFocusTraversalPolicy
2428 * @see Container#getFocusTraversalPolicy
2429 * @since 1.4
2430 */
2431 public final boolean isFocusCycleRoot() {
2432 return true;
2433 }
2434
2435 /**
2436 * Always returns {@code null} because Windows have no ancestors; they
2437 * represent the top of the Component hierarchy.
2438 *
2439 * @return {@code null}
2440 * @see Container#isFocusCycleRoot()
2441 * @since 1.4
2442 */
2443 public final Container getFocusCycleRootAncestor() {
2444 return null;
2445 }
2446
2447 /**
2448 * Returns whether this Window can become the focused Window, that is,
2449 * whether this Window or any of its subcomponents can become the focus
2450 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2451 * must be set to {@code true}. For a Window which is not a Frame or
2452 * Dialog to be focusable, its focusable Window state must be set to
2453 * {@code true}, its nearest owning Frame or Dialog must be
2454 * showing on the screen, and it must contain at least one Component in
2455 * its focus traversal cycle. If any of these conditions is not met, then
2456 * neither this Window nor any of its subcomponents can become the focus
2457 * owner.
2458 *
2459 * @return {@code true} if this Window can be the focused Window;
2460 * {@code false} otherwise
2461 * @see #getFocusableWindowState
2462 * @see #setFocusableWindowState
2463 * @see #isShowing
2464 * @see Component#isFocusable
2465 * @since 1.4
2466 */
2467 public final boolean isFocusableWindow() {
2468 // If a Window/Frame/Dialog was made non-focusable, then it is always
2469 // non-focusable.
2470 if (!getFocusableWindowState()) {
2471 return false;
2472 }
2473
2474 // All other tests apply only to Windows.
2475 if (this instanceof Frame || this instanceof Dialog) {
2476 return true;
2477 }
2478
2479 // A Window must have at least one Component in its root focus
2480 // traversal cycle to be focusable.
2481 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2482 return false;
2483 }
2484
2485 // A Window's nearest owning Frame or Dialog must be showing on the
2486 // screen.
2487 for (Window owner = getOwner(); owner != null;
2488 owner = owner.getOwner())
2489 {
2490 if (owner instanceof Frame || owner instanceof Dialog) {
2491 return owner.isShowing();
2492 }
2493 }
2494
2495 return false;
2496 }
2497
2498 /**
2499 * Returns whether this Window can become the focused Window if it meets
2500 * the other requirements outlined in {@code isFocusableWindow}. If
2501 * this method returns {@code false}, then
2502 * {@code isFocusableWindow} will return {@code false} as well.
2503 * If this method returns {@code true}, then
2504 * {@code isFocusableWindow} may return {@code true} or
2505 * {@code false} depending upon the other requirements which must be
2506 * met in order for a Window to be focusable.
2507 * <p>
2508 * By default, all Windows have a focusable Window state of
2509 * {@code true}.
2510 *
2511 * @return whether this Window can be the focused Window
2512 * @see #isFocusableWindow
2513 * @see #setFocusableWindowState
2514 * @see #isShowing
2515 * @see Component#setFocusable
2516 * @since 1.4
2517 */
2518 public boolean getFocusableWindowState() {
2519 return focusableWindowState;
2520 }
2521
2522 /**
2523 * Sets whether this Window can become the focused Window if it meets
2524 * the other requirements outlined in {@code isFocusableWindow}. If
2525 * this Window's focusable Window state is set to {@code false}, then
2526 * {@code isFocusableWindow} will return {@code false}. If this
2527 * Window's focusable Window state is set to {@code true}, then
2528 * {@code isFocusableWindow} may return {@code true} or
2529 * {@code false} depending upon the other requirements which must be
2530 * met in order for a Window to be focusable.
2531 * <p>
2532 * Setting a Window's focusability state to {@code false} is the
2533 * standard mechanism for an application to identify to the AWT a Window
2534 * which will be used as a floating palette or toolbar, and thus should be
2535 * a non-focusable Window.
2536 *
2537 * Setting the focusability state on a visible {@code Window}
2538 * can have a delayed effect on some platforms — the actual
2539 * change may happen only when the {@code Window} becomes
2540 * hidden and then visible again. To ensure consistent behavior
2541 * across platforms, set the {@code Window}'s focusable state
2542 * when the {@code Window} is invisible and then show it.
2543 *
2544 * @param focusableWindowState whether this Window can be the focused
2545 * Window
2546 * @see #isFocusableWindow
2547 * @see #getFocusableWindowState
2548 * @see #isShowing
2549 * @see Component#setFocusable
2550 * @since 1.4
2551 */
2552 public void setFocusableWindowState(boolean focusableWindowState) {
2553 boolean oldFocusableWindowState;
2554 synchronized (this) {
2555 oldFocusableWindowState = this.focusableWindowState;
2556 this.focusableWindowState = focusableWindowState;
2557 }
2558 WindowPeer peer = (WindowPeer)this.peer;
2559 if (peer != null) {
2560 peer.updateFocusableWindowState();
2561 }
2562 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2563 focusableWindowState);
2564 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2565 for (Window owner = getOwner();
2566 owner != null;
2567 owner = owner.getOwner())
2568 {
2569 Component toFocus =
2570 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2571 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2572 return;
2573 }
2574 }
2575 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2576 clearGlobalFocusOwnerPriv();
2577 }
2578 }
2579
2580 /**
2581 * Sets whether this window should receive focus on
2582 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2583 * or being moved to the front (with a call to {@link #toFront}).
2584 * <p>
2585 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2586 * (e.g. when showing an owner of the window makes the window to be shown).
2587 * {@link #toFront} may also be called indirectly (e.g. when
2588 * {@link #setVisible setVisible(true)} is called on already visible window).
2589 * In all such cases this property takes effect as well.
2590 * <p>
2591 * The value of the property is not inherited by owned windows.
2592 *
2593 * @param autoRequestFocus whether this window should be focused on
2594 * subsequently being shown or being moved to the front
2595 * @see #isAutoRequestFocus
2596 * @see #isFocusableWindow
2597 * @see #setVisible
2598 * @see #toFront
2599 * @since 1.7
2600 */
2601 public void setAutoRequestFocus(boolean autoRequestFocus) {
2602 this.autoRequestFocus = autoRequestFocus;
2603 }
2604
2605 /**
2606 * Returns whether this window should receive focus on subsequently being shown
2607 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2608 * (with a call to {@link #toFront}).
2609 * <p>
2610 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2611 *
2612 * @return {@code autoRequestFocus} value
2613 * @see #setAutoRequestFocus
2614 * @since 1.7
2615 */
2616 public boolean isAutoRequestFocus() {
2617 return autoRequestFocus;
2618 }
2619
2620 /**
2621 * Adds a PropertyChangeListener to the listener list. The listener is
2622 * registered for all bound properties of this class, including the
2623 * following:
2624 * <ul>
2625 * <li>this Window's font ("font")</li>
2626 * <li>this Window's background color ("background")</li>
2627 * <li>this Window's foreground color ("foreground")</li>
2628 * <li>this Window's focusability ("focusable")</li>
2629 * <li>this Window's focus traversal keys enabled state
2630 * ("focusTraversalKeysEnabled")</li>
2631 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2632 * ("forwardFocusTraversalKeys")</li>
2633 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2634 * ("backwardFocusTraversalKeys")</li>
2635 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2636 * ("upCycleFocusTraversalKeys")</li>
2637 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2638 * ("downCycleFocusTraversalKeys")</li>
2639 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2640 * </li>
2641 * <li>this Window's focusable Window state ("focusableWindowState")
2642 * </li>
2643 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2644 * </ul>
2645 * Note that if this Window is inheriting a bound property, then no
2646 * event will be fired in response to a change in the inherited property.
2647 * <p>
2648 * If listener is null, no exception is thrown and no action is performed.
2649 *
2650 * @param listener the PropertyChangeListener to be added
2651 *
2652 * @see Component#removePropertyChangeListener
2653 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2654 */
2655 public void addPropertyChangeListener(PropertyChangeListener listener) {
2656 super.addPropertyChangeListener(listener);
2657 }
2658
2659 /**
2660 * Adds a PropertyChangeListener to the listener list for a specific
2661 * property. The specified property may be user-defined, or one of the
2662 * following:
2663 * <ul>
2664 * <li>this Window's font ("font")</li>
2665 * <li>this Window's background color ("background")</li>
2666 * <li>this Window's foreground color ("foreground")</li>
2667 * <li>this Window's focusability ("focusable")</li>
2668 * <li>this Window's focus traversal keys enabled state
2669 * ("focusTraversalKeysEnabled")</li>
2670 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2671 * ("forwardFocusTraversalKeys")</li>
2672 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2673 * ("backwardFocusTraversalKeys")</li>
2674 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2675 * ("upCycleFocusTraversalKeys")</li>
2676 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2677 * ("downCycleFocusTraversalKeys")</li>
2678 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2679 * </li>
2680 * <li>this Window's focusable Window state ("focusableWindowState")
2681 * </li>
2682 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2683 * </ul>
2684 * Note that if this Window is inheriting a bound property, then no
2685 * event will be fired in response to a change in the inherited property.
2686 * <p>
2687 * If listener is null, no exception is thrown and no action is performed.
2688 *
2689 * @param propertyName one of the property names listed above
2690 * @param listener the PropertyChangeListener to be added
2691 *
2692 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2693 * @see Component#removePropertyChangeListener
2694 */
2695 public void addPropertyChangeListener(String propertyName,
2696 PropertyChangeListener listener) {
2697 super.addPropertyChangeListener(propertyName, listener);
2698 }
2699
2700 /**
2701 * Indicates if this container is a validate root.
2702 * <p>
2703 * {@code Window} objects are the validate roots, and, therefore, they
2704 * override this method to return {@code true}.
2705 *
2706 * @return {@code true}
2707 * @since 1.7
2708 * @see java.awt.Container#isValidateRoot
2709 */
2710 @Override
2711 public boolean isValidateRoot() {
2712 return true;
2713 }
2714
2715 /**
2716 * Dispatches an event to this window or one of its sub components.
2717 * @param e the event
2718 */
2719 void dispatchEventImpl(AWTEvent e) {
2720 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2721 invalidate();
2722 validate();
2723 }
2724 super.dispatchEventImpl(e);
2725 }
2726
2727 /**
2728 * @deprecated As of JDK version 1.1
2729 * replaced by {@code dispatchEvent(AWTEvent)}.
2730 */
2731 @Deprecated
2732 public boolean postEvent(Event e) {
2733 if (handleEvent(e)) {
2734 e.consume();
2735 return true;
2736 }
2737 return false;
2738 }
2739
2740 /**
2741 * Checks if this Window is showing on screen.
2742 * @see Component#setVisible
2743 */
2744 public boolean isShowing() {
2745 return visible;
2746 }
2747
2748 boolean isDisposing() {
2749 return disposing;
2750 }
2751
2752 /**
2753 * @deprecated As of J2SE 1.4, replaced by
2754 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2755 */
2756 @Deprecated
2757 public void applyResourceBundle(ResourceBundle rb) {
2758 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2759 }
2760
2761 /**
2762 * @deprecated As of J2SE 1.4, replaced by
2763 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2764 */
2765 @Deprecated
2766 public void applyResourceBundle(String rbName) {
2767 applyResourceBundle(ResourceBundle.getBundle(rbName));
2768 }
2769
2770 /*
2771 * Support for tracking all windows owned by this window
2772 */
2773 void addOwnedWindow(WeakReference<Window> weakWindow) {
2774 if (weakWindow != null) {
2775 synchronized(ownedWindowList) {
2776 // this if statement should really be an assert, but we don't
2777 // have asserts...
2778 if (!ownedWindowList.contains(weakWindow)) {
2779 ownedWindowList.addElement(weakWindow);
2780 }
2781 }
2782 }
2783 }
2784
2785 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2786 if (weakWindow != null) {
2787 // synchronized block not required since removeElement is
2788 // already synchronized
2789 ownedWindowList.removeElement(weakWindow);
2790 }
2791 }
2792
2793 void connectOwnedWindow(Window child) {
2794 child.parent = this;
2795 addOwnedWindow(child.weakThis);
2796 }
2797
2798 private void addToWindowList() {
2799 synchronized (Window.class) {
2800 @SuppressWarnings("unchecked")
2801 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2802 if (windowList == null) {
2803 windowList = new Vector<WeakReference<Window>>();
2804 appContext.put(Window.class, windowList);
2805 }
2806 windowList.add(weakThis);
2807 }
2808 }
2809
2810 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2811 synchronized (Window.class) {
2812 @SuppressWarnings("unchecked")
2813 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2814 if (windowList != null) {
2815 windowList.remove(weakThis);
2816 }
2817 }
2818 }
2819
2820 private void removeFromWindowList() {
2821 removeFromWindowList(appContext, weakThis);
2822 }
2823
2824 /**
2825 * Window type.
2826 *
2827 * Synchronization: ObjectLock
2828 */
2829 private Type type = Type.NORMAL;
2830
2831 /**
2832 * Sets the type of the window.
2833 *
2834 * This method can only be called while the window is not displayable.
2835 *
2836 * @throws IllegalComponentStateException if the window
2837 * is displayable.
2838 * @throws IllegalArgumentException if the type is {@code null}
2839 * @see Component#isDisplayable
2840 * @see #getType
2841 * @since 1.7
2842 */
2843 public void setType(Type type) {
2844 if (type == null) {
2845 throw new IllegalArgumentException("type should not be null.");
2846 }
2847 synchronized (getTreeLock()) {
2848 if (isDisplayable()) {
2849 throw new IllegalComponentStateException(
2850 "The window is displayable.");
2851 }
2852 synchronized (getObjectLock()) {
2853 this.type = type;
2854 }
2855 }
2856 }
2857
2858 /**
2859 * Returns the type of the window.
2860 *
2861 * @see #setType
2862 * @since 1.7
2863 */
2864 public Type getType() {
2865 synchronized (getObjectLock()) {
2866 return type;
2867 }
2868 }
2869
2870 /**
2871 * The window serialized data version.
2872 *
2873 * @serial
2874 */
2875 private int windowSerializedDataVersion = 2;
2876
2877 /**
2878 * Writes default serializable fields to stream. Writes
2879 * a list of serializable {@code WindowListener}s and
2880 * {@code WindowFocusListener}s as optional data.
2881 * Writes a list of child windows as optional data.
2882 * Writes a list of icon images as optional data
2883 *
2884 * @param s the {@code ObjectOutputStream} to write
2885 * @serialData {@code null} terminated sequence of
2886 * 0 or more pairs; the pair consists of a {@code String}
2887 * and {@code Object}; the {@code String}
2888 * indicates the type of object and is one of the following:
2889 * {@code windowListenerK} indicating a
2890 * {@code WindowListener} object;
2891 * {@code windowFocusWindowK} indicating a
2892 * {@code WindowFocusListener} object;
2893 * {@code ownedWindowK} indicating a child
2894 * {@code Window} object
2895 *
2896 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2897 * @see Component#windowListenerK
2898 * @see Component#windowFocusListenerK
2899 * @see Component#ownedWindowK
2900 * @see #readObject(ObjectInputStream)
2901 */
2902 private void writeObject(ObjectOutputStream s) throws IOException {
2903 synchronized (this) {
2904 // Update old focusMgr fields so that our object stream can be read
2905 // by previous releases
2906 focusMgr = new FocusManager();
2907 focusMgr.focusRoot = this;
2908 focusMgr.focusOwner = getMostRecentFocusOwner();
2909
2910 s.defaultWriteObject();
2911
2912 // Clear fields so that we don't keep extra references around
2913 focusMgr = null;
2914
2915 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2916 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2917 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2918 }
2919
2920 s.writeObject(null);
2921
2922 synchronized (ownedWindowList) {
2923 for (int i = 0; i < ownedWindowList.size(); i++) {
2924 Window child = ownedWindowList.elementAt(i).get();
2925 if (child != null) {
2926 s.writeObject(ownedWindowK);
2927 s.writeObject(child);
2928 }
2929 }
2930 }
2931 s.writeObject(null);
2932
2933 //write icon array
2934 if (icons != null) {
2935 for (Image i : icons) {
2936 if (i instanceof Serializable) {
2937 s.writeObject(i);
2938 }
2939 }
2940 }
2941 s.writeObject(null);
2942 }
2943
2944 //
2945 // Part of deserialization procedure to be called before
2946 // user's code.
2947 //
2948 private void initDeserializedWindow() {
2949 setWarningString();
2950 inputContextLock = new Object();
2951
2952 // Deserialized Windows are not yet visible.
2953 visible = false;
2954
2955 weakThis = new WeakReference<>(this);
2956
2957 anchor = new Object();
2958 sun.java2d.Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this));
2959
2960 addToWindowList();
2961 initGC(null);
2962 }
2963
2964 private void deserializeResources(ObjectInputStream s)
2965 throws ClassNotFoundException, IOException, HeadlessException {
2966 ownedWindowList = new Vector<>();
2967
2968 if (windowSerializedDataVersion < 2) {
2969 // Translate old-style focus tracking to new model. For 1.4 and
2970 // later releases, we'll rely on the Window's initial focusable
2971 // Component.
2972 if (focusMgr != null) {
2973 if (focusMgr.focusOwner != null) {
2974 KeyboardFocusManager.
2975 setMostRecentFocusOwner(this, focusMgr.focusOwner);
2976 }
2977 }
2978
2979 // This field is non-transient and relies on default serialization.
2980 // However, the default value is insufficient, so we need to set
2981 // it explicitly for object data streams prior to 1.4.
2982 focusableWindowState = true;
2983
2984
2985 }
2986
2987 Object keyOrNull;
2988 while(null != (keyOrNull = s.readObject())) {
2989 String key = ((String)keyOrNull).intern();
2990
2991 if (windowListenerK == key) {
2992 addWindowListener((WindowListener)(s.readObject()));
2993 } else if (windowFocusListenerK == key) {
2994 addWindowFocusListener((WindowFocusListener)(s.readObject()));
2995 } else if (windowStateListenerK == key) {
2996 addWindowStateListener((WindowStateListener)(s.readObject()));
2997 } else // skip value for unrecognized key
2998 s.readObject();
2999 }
3000
3001 try {
3002 while (null != (keyOrNull = s.readObject())) {
3003 String key = ((String)keyOrNull).intern();
3004
3005 if (ownedWindowK == key)
3006 connectOwnedWindow((Window) s.readObject());
3007
3008 else // skip value for unrecognized key
3009 s.readObject();
3010 }
3011
3012 //read icons
3013 Object obj = s.readObject(); //Throws OptionalDataException
3014 //for pre1.6 objects.
3015 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3016 //pre1.6 version if icons is null.
3017 while (obj != null) {
3018 if (obj instanceof Image) {
3019 icons.add((Image)obj);
3020 }
3021 obj = s.readObject();
3022 }
3023 }
3024 catch (OptionalDataException e) {
3025 // 1.1 serialized form
3026 // ownedWindowList will be updated by Frame.readObject
3027 }
3028
3029 }
3030
3031 /**
3032 * Reads the {@code ObjectInputStream} and an optional
3033 * list of listeners to receive various events fired by
3034 * the component; also reads a list of
3035 * (possibly {@code null}) child windows.
3036 * Unrecognized keys or values will be ignored.
3037 *
3038 * @param s the {@code ObjectInputStream} to read
3039 * @exception HeadlessException if
3040 * {@code GraphicsEnvironment.isHeadless} returns
3041 * {@code true}
3042 * @see java.awt.GraphicsEnvironment#isHeadless
3043 * @see #writeObject
3044 */
3045 private void readObject(ObjectInputStream s)
3046 throws ClassNotFoundException, IOException, HeadlessException
3047 {
3048 GraphicsEnvironment.checkHeadless();
3049 initDeserializedWindow();
3050 ObjectInputStream.GetField f = s.readFields();
3051
3052 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3053 state = f.get("state", 0);
3054 focusableWindowState = f.get("focusableWindowState", true);
3055 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3056 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3057 // Note: 1.4 (or later) doesn't use focusMgr
3058 focusMgr = (FocusManager)f.get("focusMgr", null);
3059 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3060 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3061 setModalExclusionType(et); // since 6.0
3062 boolean aot = f.get("alwaysOnTop", false);
3063 if(aot) {
3064 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3065 }
3066 shape = (Shape)f.get("shape", null);
3067 opacity = (Float)f.get("opacity", 1.0f);
3068
3069 this.securityWarningWidth = 0;
3070 this.securityWarningHeight = 0;
3071 this.securityWarningPointX = 2.0;
3072 this.securityWarningPointY = 0.0;
3073 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3074 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3075
3076 deserializeResources(s);
3077 }
3078
3079 /*
3080 * --- Accessibility Support ---
3081 *
3082 */
3083
3084 /**
3085 * Gets the AccessibleContext associated with this Window.
3086 * For windows, the AccessibleContext takes the form of an
3087 * AccessibleAWTWindow.
3088 * A new AccessibleAWTWindow instance is created if necessary.
3089 *
3090 * @return an AccessibleAWTWindow that serves as the
3091 * AccessibleContext of this Window
3092 * @since 1.3
3093 */
3094 public AccessibleContext getAccessibleContext() {
3095 if (accessibleContext == null) {
3096 accessibleContext = new AccessibleAWTWindow();
3097 }
3098 return accessibleContext;
3099 }
3100
3101 /**
3102 * This class implements accessibility support for the
3103 * {@code Window} class. It provides an implementation of the
3104 * Java Accessibility API appropriate to window user-interface elements.
3105 * @since 1.3
3106 */
3107 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3108 {
3109 /*
3110 * JDK 1.3 serialVersionUID
3111 */
3112 private static final long serialVersionUID = 4215068635060671780L;
3113
3114 /**
3115 * Get the role of this object.
3116 *
3117 * @return an instance of AccessibleRole describing the role of the
3118 * object
3119 * @see javax.accessibility.AccessibleRole
3120 */
3121 public AccessibleRole getAccessibleRole() {
3122 return AccessibleRole.WINDOW;
3123 }
3124
3125 /**
3126 * Get the state of this object.
3127 *
3128 * @return an instance of AccessibleStateSet containing the current
3129 * state set of the object
3130 * @see javax.accessibility.AccessibleState
3131 */
3132 public AccessibleStateSet getAccessibleStateSet() {
3133 AccessibleStateSet states = super.getAccessibleStateSet();
3134 if (getFocusOwner() != null) {
3135 states.add(AccessibleState.ACTIVE);
3136 }
3137 return states;
3138 }
3139
3140 } // inner class AccessibleAWTWindow
3141
3142 @Override
3143 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3144 if (gc == null) {
3145 gc = GraphicsEnvironment.
3146 getLocalGraphicsEnvironment().
3147 getDefaultScreenDevice().
3148 getDefaultConfiguration();
3149 }
3150 synchronized (getTreeLock()) {
3151 super.setGraphicsConfiguration(gc);
3152 if (log.isLoggable(PlatformLogger.Level.FINER)) {
3153 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3154 }
3155 }
3156 }
3157
3158 /**
3159 * Sets the location of the window relative to the specified
3160 * component according to the following scenarios.
3161 * <p>
3162 * The target screen mentioned below is a screen to which
3163 * the window should be placed after the setLocationRelativeTo
3164 * method is called.
3165 * <ul>
3166 * <li>If the component is {@code null}, or the {@code
3167 * GraphicsConfiguration} associated with this component is
3168 * {@code null}, the window is placed in the center of the
3169 * screen. The center point can be obtained with the {@link
3170 * GraphicsEnvironment#getCenterPoint
3171 * GraphicsEnvironment.getCenterPoint} method.
3172 * <li>If the component is not {@code null}, but it is not
3173 * currently showing, the window is placed in the center of
3174 * the target screen defined by the {@code
3175 * GraphicsConfiguration} associated with this component.
3176 * <li>If the component is not {@code null} and is shown on
3177 * the screen, then the window is located in such a way that
3178 * the center of the window coincides with the center of the
3179 * component.
3180 * </ul>
3181 * <p>
3182 * If the screens configuration does not allow the window to
3183 * be moved from one screen to another, then the window is
3184 * only placed at the location determined according to the
3185 * above conditions and its {@code GraphicsConfiguration} is
3186 * not changed.
3187 * <p>
3188 * <b>Note</b>: If the lower edge of the window is out of the screen,
3189 * then the window is placed to the side of the {@code Component}
3190 * that is closest to the center of the screen. So if the
3191 * component is on the right part of the screen, the window
3192 * is placed to its left, and vice versa.
3193 * <p>
3194 * If after the window location has been calculated, the upper,
3195 * left, or right edge of the window is out of the screen,
3196 * then the window is located in such a way that the upper,
3197 * left, or right edge of the window coincides with the
3198 * corresponding edge of the screen. If both left and right
3199 * edges of the window are out of the screen, the window is
3200 * placed at the left side of the screen. The similar placement
3201 * will occur if both top and bottom edges are out of the screen.
3202 * In that case, the window is placed at the top side of the screen.
3203 * <p>
3204 * The method changes the geometry-related data. Therefore,
3205 * the native windowing system may ignore such requests, or it may modify
3206 * the requested data, so that the {@code Window} object is placed and sized
3207 * in a way that corresponds closely to the desktop settings.
3208 *
3209 * @param c the component in relation to which the window's location
3210 * is determined
3211 * @see java.awt.GraphicsEnvironment#getCenterPoint
3212 * @since 1.4
3213 */
3214 public void setLocationRelativeTo(Component c) {
3215 // target location
3216 int dx = 0, dy = 0;
3217 // target GC
3218 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3219 Rectangle gcBounds = gc.getBounds();
3220
3221 Dimension windowSize = getSize();
3222
3223 // search a top-level of c
3224 Window componentWindow = SunToolkit.getContainingWindow(c);
3225 if ((c == null) || (componentWindow == null)) {
3226 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3227 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3228 gcBounds = gc.getBounds();
3229 Point centerPoint = ge.getCenterPoint();
3230 dx = centerPoint.x - windowSize.width / 2;
3231 dy = centerPoint.y - windowSize.height / 2;
3232 } else if (!c.isShowing()) {
3233 gc = componentWindow.getGraphicsConfiguration();
3234 gcBounds = gc.getBounds();
3235 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3236 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3237 } else {
3238 gc = componentWindow.getGraphicsConfiguration();
3239 gcBounds = gc.getBounds();
3240 Dimension compSize = c.getSize();
3241 Point compLocation = c.getLocationOnScreen();
3242 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3243 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3244
3245 // Adjust for bottom edge being offscreen
3246 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3247 dy = gcBounds.y + gcBounds.height - windowSize.height;
3248 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3249 dx = compLocation.x + compSize.width;
3250 } else {
3251 dx = compLocation.x - windowSize.width;
3252 }
3253 }
3254 }
3255
3256 // Avoid being placed off the edge of the screen:
3257 // bottom
3258 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3259 dy = gcBounds.y + gcBounds.height - windowSize.height;
3260 }
3261 // top
3262 if (dy < gcBounds.y) {
3263 dy = gcBounds.y;
3264 }
3265 // right
3266 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3267 dx = gcBounds.x + gcBounds.width - windowSize.width;
3268 }
3269 // left
3270 if (dx < gcBounds.x) {
3271 dx = gcBounds.x;
3272 }
3273
3274 setLocation(dx, dy);
3275 }
3276
3277 /**
3278 * Overridden from Component. Top-level Windows should not propagate a
3279 * MouseWheelEvent beyond themselves into their owning Windows.
3280 */
3281 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3282
3283 /**
3284 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3285 */
3286 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3287
3288 /**
3289 * Creates a new strategy for multi-buffering on this component.
3290 * Multi-buffering is useful for rendering performance. This method
3291 * attempts to create the best strategy available with the number of
3292 * buffers supplied. It will always create a {@code BufferStrategy}
3293 * with that number of buffers.
3294 * A page-flipping strategy is attempted first, then a blitting strategy
3295 * using accelerated buffers. Finally, an unaccelerated blitting
3296 * strategy is used.
3297 * <p>
3298 * Each time this method is called,
3299 * the existing buffer strategy for this component is discarded.
3300 * @param numBuffers number of buffers to create
3301 * @exception IllegalArgumentException if numBuffers is less than 1.
3302 * @exception IllegalStateException if the component is not displayable
3303 * @see #isDisplayable
3304 * @see #getBufferStrategy
3305 * @since 1.4
3306 */
3307 public void createBufferStrategy(int numBuffers) {
3308 super.createBufferStrategy(numBuffers);
3309 }
3310
3311 /**
3312 * Creates a new strategy for multi-buffering on this component with the
3313 * required buffer capabilities. This is useful, for example, if only
3314 * accelerated memory or page flipping is desired (as specified by the
3315 * buffer capabilities).
3316 * <p>
3317 * Each time this method
3318 * is called, the existing buffer strategy for this component is discarded.
3319 * @param numBuffers number of buffers to create, including the front buffer
3320 * @param caps the required capabilities for creating the buffer strategy;
3321 * cannot be {@code null}
3322 * @exception AWTException if the capabilities supplied could not be
3323 * supported or met; this may happen, for example, if there is not enough
3324 * accelerated memory currently available, or if page flipping is specified
3325 * but not possible.
3326 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3327 * caps is {@code null}
3328 * @see #getBufferStrategy
3329 * @since 1.4
3330 */
3331 public void createBufferStrategy(int numBuffers,
3332 BufferCapabilities caps) throws AWTException {
3333 super.createBufferStrategy(numBuffers, caps);
3334 }
3335
3336 /**
3337 * Returns the {@code BufferStrategy} used by this component. This
3338 * method will return null if a {@code BufferStrategy} has not yet
3339 * been created or has been disposed.
3340 *
3341 * @return the buffer strategy used by this component
3342 * @see #createBufferStrategy
3343 * @since 1.4
3344 */
3345 public BufferStrategy getBufferStrategy() {
3346 return super.getBufferStrategy();
3347 }
3348
3349 Component getTemporaryLostComponent() {
3350 return temporaryLostComponent;
3351 }
3352 Component setTemporaryLostComponent(Component component) {
3353 Component previousComp = temporaryLostComponent;
3354 // Check that "component" is an acceptable focus owner and don't store it otherwise
3355 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3356 if (component == null || component.canBeFocusOwner()) {
3357 temporaryLostComponent = component;
3358 } else {
3359 temporaryLostComponent = null;
3360 }
3361 return previousComp;
3362 }
3363
3364 /**
3365 * Checks whether this window can contain focus owner.
3366 * Verifies that it is focusable and as container it can container focus owner.
3367 * @since 1.5
3368 */
3369 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3370 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3371 }
3372
3373 private boolean locationByPlatform = locationByPlatformProp;
3374
3375
3376 /**
3377 * Sets whether this Window should appear at the default location for the
3378 * native windowing system or at the current location (returned by
3379 * {@code getLocation}) the next time the Window is made visible.
3380 * This behavior resembles a native window shown without programmatically
3381 * setting its location. Most windowing systems cascade windows if their
3382 * locations are not explicitly set. The actual location is determined once the
3383 * window is shown on the screen.
3384 * <p>
3385 * This behavior can also be enabled by setting the System Property
3386 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3387 * take precedence.
3388 * <p>
3389 * Calls to {@code setVisible}, {@code setLocation} and
3390 * {@code setBounds} after calling {@code setLocationByPlatform} clear
3391 * this property of the Window.
3392 * <p>
3393 * For example, after the following code is executed:
3394 * <pre><blockquote>
3395 * setLocationByPlatform(true);
3396 * setVisible(true);
3397 * boolean flag = isLocationByPlatform();
3398 * </blockquote></pre>
3399 * The window will be shown at platform's default location and
3400 * {@code flag} will be {@code false}.
3401 * <p>
3402 * In the following sample:
3403 * <pre><blockquote>
3404 * setLocationByPlatform(true);
3405 * setLocation(10, 10);
3406 * boolean flag = isLocationByPlatform();
3407 * setVisible(true);
3408 * </blockquote></pre>
3409 * The window will be shown at (10, 10) and {@code flag} will be
3410 * {@code false}.
3411 *
3412 * @param locationByPlatform {@code true} if this Window should appear
3413 * at the default location, {@code false} if at the current location
3414 * @throws {@code IllegalComponentStateException} if the window
3415 * is showing on screen and locationByPlatform is {@code true}.
3416 * @see #setLocation
3417 * @see #isShowing
3418 * @see #setVisible
3419 * @see #isLocationByPlatform
3420 * @see java.lang.System#getProperty(String)
3421 * @since 1.5
3422 */
3423 public void setLocationByPlatform(boolean locationByPlatform) {
3424 synchronized (getTreeLock()) {
3425 if (locationByPlatform && isShowing()) {
3426 throw new IllegalComponentStateException("The window is showing on screen.");
3427 }
3428 this.locationByPlatform = locationByPlatform;
3429 }
3430 }
3431
3432 /**
3433 * Returns {@code true} if this Window will appear at the default location
3434 * for the native windowing system the next time this Window is made visible.
3435 * This method always returns {@code false} if the Window is showing on the
3436 * screen.
3437 *
3438 * @return whether this Window will appear at the default location
3439 * @see #setLocationByPlatform
3440 * @see #isShowing
3441 * @since 1.5
3442 */
3443 public boolean isLocationByPlatform() {
3444 synchronized (getTreeLock()) {
3445 return locationByPlatform;
3446 }
3447 }
3448
3449 /**
3450 * {@inheritDoc}
3451 * <p>
3452 * The {@code width} or {@code height} values
3453 * are automatically enlarged if either is less than
3454 * the minimum size as specified by previous call to
3455 * {@code setMinimumSize}.
3456 * <p>
3457 * The method changes the geometry-related data. Therefore,
3458 * the native windowing system may ignore such requests, or it may modify
3459 * the requested data, so that the {@code Window} object is placed and sized
3460 * in a way that corresponds closely to the desktop settings.
3461 *
3462 * @see #getBounds
3463 * @see #setLocation(int, int)
3464 * @see #setLocation(Point)
3465 * @see #setSize(int, int)
3466 * @see #setSize(Dimension)
3467 * @see #setMinimumSize
3468 * @see #setLocationByPlatform
3469 * @see #isLocationByPlatform
3470 * @since 1.6
3471 */
3472 public void setBounds(int x, int y, int width, int height) {
3473 synchronized (getTreeLock()) {
3474 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3475 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3476 {
3477 locationByPlatform = false;
3478 }
3479 super.setBounds(x, y, width, height);
3480 }
3481 }
3482
3483 /**
3484 * {@inheritDoc}
3485 * <p>
3486 * The {@code r.width} or {@code r.height} values
3487 * will be automatically enlarged if either is less than
3488 * the minimum size as specified by previous call to
3489 * {@code setMinimumSize}.
3490 * <p>
3491 * The method changes the geometry-related data. Therefore,
3492 * the native windowing system may ignore such requests, or it may modify
3493 * the requested data, so that the {@code Window} object is placed and sized
3494 * in a way that corresponds closely to the desktop settings.
3495 *
3496 * @see #getBounds
3497 * @see #setLocation(int, int)
3498 * @see #setLocation(Point)
3499 * @see #setSize(int, int)
3500 * @see #setSize(Dimension)
3501 * @see #setMinimumSize
3502 * @see #setLocationByPlatform
3503 * @see #isLocationByPlatform
3504 * @since 1.6
3505 */
3506 public void setBounds(Rectangle r) {
3507 setBounds(r.x, r.y, r.width, r.height);
3508 }
3509
3510 /**
3511 * Determines whether this component will be displayed on the screen.
3512 * @return {@code true} if the component and all of its ancestors
3513 * until a toplevel window are visible, {@code false} otherwise
3514 */
3515 boolean isRecursivelyVisible() {
3516 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3517 // We're overriding isRecursivelyVisible to implement this policy.
3518 return visible;
3519 }
3520
3521
3522 // ******************** SHAPES & TRANSPARENCY CODE ********************
3523
3524 /**
3525 * Returns the opacity of the window.
3526 *
3527 * @return the opacity of the window
3528 *
3529 * @see Window#setOpacity(float)
3530 * @see GraphicsDevice.WindowTranslucency
3531 *
3532 * @since 1.7
3533 */
3534 public float getOpacity() {
3535 synchronized (getTreeLock()) {
3536 return opacity;
3537 }
3538 }
3539
3540 /**
3541 * Sets the opacity of the window.
3542 * <p>
3543 * The opacity value is in the range [0..1]. Note that setting the opacity
3544 * level of 0 may or may not disable the mouse event handling on this
3545 * window. This is a platform-dependent behavior.
3546 * <p>
3547 * The following conditions must be met in order to set the opacity value
3548 * less than {@code 1.0f}:
3549 * <ul>
3550 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3551 * translucency must be supported by the underlying system
3552 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3553 * and {@link Dialog#setUndecorated})
3554 * <li>The window must not be in full-screen mode (see {@link
3555 * GraphicsDevice#setFullScreenWindow(Window)})
3556 * </ul>
3557 * <p>
3558 * If the requested opacity value is less than {@code 1.0f}, and any of the
3559 * above conditions are not met, the window opacity will not change,
3560 * and the {@code IllegalComponentStateException} will be thrown.
3561 * <p>
3562 * The translucency levels of individual pixels may also be effected by the
3563 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3564 * current shape of this window (see {@link #setShape(Shape)}).
3565 *
3566 * @param opacity the opacity level to set to the window
3567 *
3568 * @throws IllegalArgumentException if the opacity is out of the range
3569 * [0..1]
3570 * @throws IllegalComponentStateException if the window is decorated and
3571 * the opacity is less than {@code 1.0f}
3572 * @throws IllegalComponentStateException if the window is in full screen
3573 * mode, and the opacity is less than {@code 1.0f}
3574 * @throws UnsupportedOperationException if the {@code
3575 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3576 * translucency is not supported and the opacity is less than
3577 * {@code 1.0f}
3578 *
3579 * @see Window#getOpacity
3580 * @see Window#setBackground(Color)
3581 * @see Window#setShape(Shape)
3582 * @see Frame#isUndecorated
3583 * @see Dialog#isUndecorated
3584 * @see GraphicsDevice.WindowTranslucency
3585 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3586 *
3587 * @since 1.7
3588 */
3589 public void setOpacity(float opacity) {
3590 synchronized (getTreeLock()) {
3591 if (opacity < 0.0f || opacity > 1.0f) {
3592 throw new IllegalArgumentException(
3593 "The value of opacity should be in the range [0.0f .. 1.0f].");
3594 }
3595 if (opacity < 1.0f) {
3596 GraphicsConfiguration gc = getGraphicsConfiguration();
3597 GraphicsDevice gd = gc.getDevice();
3598 if (gc.getDevice().getFullScreenWindow() == this) {
3599 throw new IllegalComponentStateException(
3600 "Setting opacity for full-screen window is not supported.");
3601 }
3602 if (!gd.isWindowTranslucencySupported(
3603 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3604 {
3605 throw new UnsupportedOperationException(
3606 "TRANSLUCENT translucency is not supported.");
3607 }
3608 }
3609 this.opacity = opacity;
3610 WindowPeer peer = (WindowPeer)getPeer();
3611 if (peer != null) {
3612 peer.setOpacity(opacity);
3613 }
3614 }
3615 }
3616
3617 /**
3618 * Returns the shape of the window.
3619 *
3620 * The value returned by this method may not be the same as
3621 * previously set with {@code setShape(shape)}, but it is guaranteed
3622 * to represent the same shape.
3623 *
3624 * @return the shape of the window or {@code null} if no
3625 * shape is specified for the window
3626 *
3627 * @see Window#setShape(Shape)
3628 * @see GraphicsDevice.WindowTranslucency
3629 *
3630 * @since 1.7
3631 */
3632 public Shape getShape() {
3633 synchronized (getTreeLock()) {
3634 return shape == null ? null : new Path2D.Float(shape);
3635 }
3636 }
3637
3638 /**
3639 * Sets the shape of the window.
3640 * <p>
3641 * Setting a shape cuts off some parts of the window. Only the parts that
3642 * belong to the given {@link Shape} remain visible and clickable. If
3643 * the shape argument is {@code null}, this method restores the default
3644 * shape, making the window rectangular on most platforms.
3645 * <p>
3646 * The following conditions must be met to set a non-null shape:
3647 * <ul>
3648 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3649 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3650 * underlying system
3651 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3652 * and {@link Dialog#setUndecorated})
3653 * <li>The window must not be in full-screen mode (see {@link
3654 * GraphicsDevice#setFullScreenWindow(Window)})
3655 * </ul>
3656 * <p>
3657 * If the requested shape is not {@code null}, and any of the above
3658 * conditions are not met, the shape of this window will not change,
3659 * and either the {@code UnsupportedOperationException} or {@code
3660 * IllegalComponentStateException} will be thrown.
3661 * <p>
3662 * The tranlucency levels of individual pixels may also be effected by the
3663 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3664 * opacity value (see {@link #setOpacity(float)}). See {@link
3665 * GraphicsDevice.WindowTranslucency} for more details.
3666 *
3667 * @param shape the shape to set to the window
3668 *
3669 * @throws IllegalComponentStateException if the shape is not {@code
3670 * null} and the window is decorated
3671 * @throws IllegalComponentStateException if the shape is not {@code
3672 * null} and the window is in full-screen mode
3673 * @throws UnsupportedOperationException if the shape is not {@code
3674 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3675 * PERPIXEL_TRANSPARENT} translucency is not supported
3676 *
3677 * @see Window#getShape()
3678 * @see Window#setBackground(Color)
3679 * @see Window#setOpacity(float)
3680 * @see Frame#isUndecorated
3681 * @see Dialog#isUndecorated
3682 * @see GraphicsDevice.WindowTranslucency
3683 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3684 *
3685 * @since 1.7
3686 */
3687 public void setShape(Shape shape) {
3688 synchronized (getTreeLock()) {
3689 if (shape != null) {
3690 GraphicsConfiguration gc = getGraphicsConfiguration();
3691 GraphicsDevice gd = gc.getDevice();
3692 if (gc.getDevice().getFullScreenWindow() == this) {
3693 throw new IllegalComponentStateException(
3694 "Setting shape for full-screen window is not supported.");
3695 }
3696 if (!gd.isWindowTranslucencySupported(
3697 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3698 {
3699 throw new UnsupportedOperationException(
3700 "PERPIXEL_TRANSPARENT translucency is not supported.");
3701 }
3702 }
3703 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3704 WindowPeer peer = (WindowPeer)getPeer();
3705 if (peer != null) {
3706 peer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3707 }
3708 }
3709 }
3710
3711 /**
3712 * Gets the background color of this window.
3713 * <p>
3714 * Note that the alpha component of the returned color indicates whether
3715 * the window is in the non-opaque (per-pixel translucent) mode.
3716 *
3717 * @return this component's background color
3718 *
3719 * @see Window#setBackground(Color)
3720 * @see Window#isOpaque
3721 * @see GraphicsDevice.WindowTranslucency
3722 */
3723 @Override
3724 public Color getBackground() {
3725 return super.getBackground();
3726 }
3727
3728 /**
3729 * Sets the background color of this window.
3730 * <p>
3731 * If the windowing system supports the {@link
3732 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3733 * tranclucency, the alpha component of the given background color
3734 * may effect the mode of operation for this window: it indicates whether
3735 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3736 * (alpha is less than {@code 1.0f}). If the given background color is
3737 * {@code null}, the window is considered completely opaque.
3738 * <p>
3739 * All the following conditions must be met to enable the per-pixel
3740 * transparency mode for this window:
3741 * <ul>
3742 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3743 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3744 * device where this window is located
3745 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3746 * and {@link Dialog#setUndecorated})
3747 * <li>The window must not be in full-screen mode (see {@link
3748 * GraphicsDevice#setFullScreenWindow(Window)})
3749 * </ul>
3750 * <p>
3751 * If the alpha component of the requested background color is less than
3752 * {@code 1.0f}, and any of the above conditions are not met, the background
3753 * color of this window will not change, the alpha component of the given
3754 * background color will not affect the mode of operation for this window,
3755 * and either the {@code UnsupportedOperationException} or {@code
3756 * IllegalComponentStateException} will be thrown.
3757 * <p>
3758 * When the window is per-pixel translucent, the drawing sub-system
3759 * respects the alpha value of each individual pixel. If a pixel gets
3760 * painted with the alpha color component equal to zero, it becomes
3761 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3762 * pixel is fully opaque. Interim values of the alpha color component make
3763 * the pixel semi-transparent. In this mode, the background of the window
3764 * gets painted with the alpha value of the given background color. If the
3765 * alpha value of the argument of this method is equal to {@code 0}, the
3766 * background is not painted at all.
3767 * <p>
3768 * The actual level of translucency of a given pixel also depends on window
3769 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3770 * this window (see {@link #setShape(Shape)}).
3771 * <p>
3772 * Note that painting a pixel with the alpha value of {@code 0} may or may
3773 * not disable the mouse event handling on this pixel. This is a
3774 * platform-dependent behavior. To make sure the mouse events do not get
3775 * dispatched to a particular pixel, the pixel must be excluded from the
3776 * shape of the window.
3777 * <p>
3778 * Enabling the per-pixel translucency mode may change the graphics
3779 * configuration of this window due to the native platform requirements.
3780 *
3781 * @param bgColor the color to become this window's background color.
3782 *
3783 * @throws IllegalComponentStateException if the alpha value of the given
3784 * background color is less than {@code 1.0f} and the window is decorated
3785 * @throws IllegalComponentStateException if the alpha value of the given
3786 * background color is less than {@code 1.0f} and the window is in
3787 * full-screen mode
3788 * @throws UnsupportedOperationException if the alpha value of the given
3789 * background color is less than {@code 1.0f} and {@link
3790 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3791 * PERPIXEL_TRANSLUCENT} translucency is not supported
3792 *
3793 * @see Window#getBackground
3794 * @see Window#isOpaque
3795 * @see Window#setOpacity(float)
3796 * @see Window#setShape(Shape)
3797 * @see Frame#isUndecorated
3798 * @see Dialog#isUndecorated
3799 * @see GraphicsDevice.WindowTranslucency
3800 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3801 * @see GraphicsConfiguration#isTranslucencyCapable()
3802 */
3803 @Override
3804 public void setBackground(Color bgColor) {
3805 Color oldBg = getBackground();
3806 super.setBackground(bgColor);
3807 if (oldBg != null && oldBg.equals(bgColor)) {
3808 return;
3809 }
3810 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3811 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3812 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3813 GraphicsConfiguration gc = getGraphicsConfiguration();
3814 GraphicsDevice gd = gc.getDevice();
3815 if (gc.getDevice().getFullScreenWindow() == this) {
3816 throw new IllegalComponentStateException(
3817 "Making full-screen window non opaque is not supported.");
3818 }
3819 if (!gc.isTranslucencyCapable()) {
3820 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3821 if (capableGC == null) {
3822 throw new UnsupportedOperationException(
3823 "PERPIXEL_TRANSLUCENT translucency is not supported");
3824 }
3825 setGraphicsConfiguration(capableGC);
3826 }
3827 setLayersOpaque(this, false);
3828 } else if ((oldAlpha < 255) && (alpha == 255)) {
3829 setLayersOpaque(this, true);
3830 }
3831 WindowPeer peer = (WindowPeer)getPeer();
3832 if (peer != null) {
3833 peer.setOpaque(alpha == 255);
3834 }
3835 }
3836
3837 /**
3838 * Indicates if the window is currently opaque.
3839 * <p>
3840 * The method returns {@code false} if the background color of the window
3841 * is not {@code null} and the alpha component of the color is less than
3842 * {@code 1.0f}. The method returns {@code true} otherwise.
3843 *
3844 * @return {@code true} if the window is opaque, {@code false} otherwise
3845 *
3846 * @see Window#getBackground
3847 * @see Window#setBackground(Color)
3848 * @since 1.7
3849 */
3850 @Override
3851 public boolean isOpaque() {
3852 Color bg = getBackground();
3853 return bg != null ? bg.getAlpha() == 255 : true;
3854 }
3855
3856 private void updateWindow() {
3857 synchronized (getTreeLock()) {
3858 WindowPeer peer = (WindowPeer)getPeer();
3859 if (peer != null) {
3860 peer.updateWindow();
3861 }
3862 }
3863 }
3864
3865 /**
3866 * {@inheritDoc}
3867 *
3868 * @since 1.7
3869 */
3870 @Override
3871 public void paint(Graphics g) {
3872 if (!isOpaque()) {
3873 Graphics gg = g.create();
3874 try {
3875 if (gg instanceof Graphics2D) {
3876 gg.setColor(getBackground());
3877 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3878 gg.fillRect(0, 0, getWidth(), getHeight());
3879 }
3880 } finally {
3881 gg.dispose();
3882 }
3883 }
3884 super.paint(g);
3885 }
3886
3887 private static void setLayersOpaque(Component component, boolean isOpaque) {
3888 // Shouldn't use instanceof to avoid loading Swing classes
3889 // if it's a pure AWT application.
3890 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3891 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3892 javax.swing.JRootPane root = rpc.getRootPane();
3893 javax.swing.JLayeredPane lp = root.getLayeredPane();
3894 Container c = root.getContentPane();
3895 javax.swing.JComponent content =
3896 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3897 lp.setOpaque(isOpaque);
3898 root.setOpaque(isOpaque);
3899 if (content != null) {
3900 content.setOpaque(isOpaque);
3901
3902 // Iterate down one level to see whether we have a JApplet
3903 // (which is also a RootPaneContainer) which requires processing
3904 int numChildren = content.getComponentCount();
3905 if (numChildren > 0) {
3906 Component child = content.getComponent(0);
3907 // It's OK to use instanceof here because we've
3908 // already loaded the RootPaneContainer class by now
3909 if (child instanceof javax.swing.RootPaneContainer) {
3910 setLayersOpaque(child, isOpaque);
3911 }
3912 }
3913 }
3914 }
3915 }
3916
3917
3918 // ************************** MIXING CODE *******************************
3919
3920 // A window has an owner, but it does NOT have a container
3921 @Override
3922 final Container getContainer() {
3923 return null;
3924 }
3925
3926 /**
3927 * Applies the shape to the component
3928 * @param shape Shape to be applied to the component
3929 */
3930 @Override
3931 final void applyCompoundShape(Region shape) {
3932 // The shape calculated by mixing code is not intended to be applied
3933 // to windows or frames
3934 }
3935
3936 @Override
3937 final void applyCurrentShape() {
3938 // The shape calculated by mixing code is not intended to be applied
3939 // to windows or frames
3940 }
3941
3942 @Override
3943 final void mixOnReshaping() {
3944 // The shape calculated by mixing code is not intended to be applied
3945 // to windows or frames
3946 }
3947
3948 @Override
3949 final Point getLocationOnWindow() {
3950 return new Point(0, 0);
3951 }
3952
3953 // ****************** END OF MIXING CODE ********************************
3954
3955 /**
3956 * Limit the given double value with the given range.
3957 */
3958 private static double limit(double value, double min, double max) {
3959 value = Math.max(value, min);
3960 value = Math.min(value, max);
3961 return value;
3962 }
3963
3964 /**
3965 * Calculate the position of the security warning.
3966 *
3967 * This method gets the window location/size as reported by the native
3968 * system since the locally cached values may represent outdated data.
3969 *
3970 * The method is used from the native code, or via AWTAccessor.
3971 *
3972 * NOTE: this method is invoked on the toolkit thread, and therefore is not
3973 * supposed to become public/user-overridable.
3974 */
3975 private Point2D calculateSecurityWarningPosition(double x, double y,
3976 double w, double h)
3977 {
3978 // The position according to the spec of SecurityWarning.setPosition()
3979 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
3980 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
3981
3982 // First, make sure the warning is not too far from the window bounds
3983 wx = Window.limit(wx,
3984 x - securityWarningWidth - 2,
3985 x + w + 2);
3986 wy = Window.limit(wy,
3987 y - securityWarningHeight - 2,
3988 y + h + 2);
3989
3990 // Now make sure the warning window is visible on the screen
3991 GraphicsConfiguration graphicsConfig =
3992 getGraphicsConfiguration_NoClientCode();
3993 Rectangle screenBounds = graphicsConfig.getBounds();
3994 Insets screenInsets =
3995 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
3996
3997 wx = Window.limit(wx,
3998 screenBounds.x + screenInsets.left,
3999 screenBounds.x + screenBounds.width - screenInsets.right
4000 - securityWarningWidth);
4001 wy = Window.limit(wy,
4002 screenBounds.y + screenInsets.top,
4003 screenBounds.y + screenBounds.height - screenInsets.bottom
4004 - securityWarningHeight);
4005
4006 return new Point2D.Double(wx, wy);
4007 }
4008
4009 static {
4010 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4011 public float getOpacity(Window window) {
4012 return window.opacity;
4013 }
4014 public void setOpacity(Window window, float opacity) {
4015 window.setOpacity(opacity);
4016 }
4017 public Shape getShape(Window window) {
4018 return window.getShape();
4019 }
4020 public void setShape(Window window, Shape shape) {
4021 window.setShape(shape);
4022 }
4023 public void setOpaque(Window window, boolean opaque) {
4024 Color bg = window.getBackground();
4025 if (bg == null) {
4026 bg = new Color(0, 0, 0, 0);
4027 }
4028 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4029 opaque ? 255 : 0));
4030 }
4031 public void updateWindow(Window window) {
4032 window.updateWindow();
4033 }
4034
4035 public Dimension getSecurityWarningSize(Window window) {
4036 return new Dimension(window.securityWarningWidth,
4037 window.securityWarningHeight);
4038 }
4039
4040 public void setSecurityWarningSize(Window window, int width, int height)
4041 {
4042 window.securityWarningWidth = width;
4043 window.securityWarningHeight = height;
4044 }
4045
4046 public void setSecurityWarningPosition(Window window,
4047 Point2D point, float alignmentX, float alignmentY)
4048 {
4049 window.securityWarningPointX = point.getX();
4050 window.securityWarningPointY = point.getY();
4051 window.securityWarningAlignmentX = alignmentX;
4052 window.securityWarningAlignmentY = alignmentY;
4053
4054 synchronized (window.getTreeLock()) {
4055 WindowPeer peer = (WindowPeer)window.getPeer();
4056 if (peer != null) {
4057 peer.repositionSecurityWarning();
4058 }
4059 }
4060 }
4061
4062 public Point2D calculateSecurityWarningPosition(Window window,
4063 double x, double y, double w, double h)
4064 {
4065 return window.calculateSecurityWarningPosition(x, y, w, h);
4066 }
4067
4068 public void setLWRequestStatus(Window changed, boolean status) {
4069 changed.syncLWRequests = status;
4070 }
4071
4072 public boolean isAutoRequestFocus(Window w) {
4073 return w.autoRequestFocus;
4074 }
4075
4076 public boolean isTrayIconWindow(Window w) {
4077 return w.isTrayIconWindow;
4078 }
4079
4080 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4081 w.isTrayIconWindow = isTrayIconWindow;
4082 }
4083 }); // WindowAccessor
4084 } // static
4085
4086 // a window doesn't need to be updated in the Z-order.
4087 @Override
4088 void updateZOrder() {}
4089
4090 } // class Window
4091
4092
4093 /**
4094 * This class is no longer used, but is maintained for Serialization
4095 * backward-compatibility.
4096 */
4097 class FocusManager implements java.io.Serializable {
4098 Container focusRoot;
4099 Component focusOwner;
4100
4101 /*
4102 * JDK 1.1 serialVersionUID
4103 */
4104 static final long serialVersionUID = 2491878825643557906L;
4105 }