1 /*
2 * Copyright (c) 1995, 2011, 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</code> object is a top-level window with no borders and no
66 * menubar.
67 * The default layout for a window is <code>BorderLayout</code>.
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</code>
73 * on a different screen device by constructing the <code>Window</code>
74 * with {@link #Window(Window, GraphicsConfiguration)}. The
75 * <code>GraphicsConfiguration</code> object is one of the
76 * <code>GraphicsConfiguration</code> 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</code>,
91 * you must pass a virtual coordinate to this method. Similarly,
92 * calling <code>getLocationOnScreen</code> on a <code>Window</code> returns
93 * virtual device coordinates. Call the <code>getBounds</code> method
94 * of a <code>GraphicsConfiguration</code> to find its origin in the virtual
95 * coordinate system.
96 * <p>
97 * The following code sets the location of a <code>Window</code>
98 * at (10, 10) relative to the origin of the physical screen
99 * of the corresponding <code>GraphicsConfiguration</code>. If the
100 * bounds of the <code>GraphicsConfiguration</code> is not taken
101 * into account, the <code>Window</code> 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</code>.
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</code>s, <code>Frame</code>s, and <code>Dialog</code>s)
115 * are under the control of the desktop's window management system.
116 * Calls to <code>setLocation</code>, <code>setSize</code>, and
117 * <code>setBounds</code> 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</code> 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>, <code>getLocation</code>,
126 * <code>getLocationOnScreen</code>, and <code>getSize</code> 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</code>.
419 * <p>
420 * If there is a security manager, this method first calls
421 * the security manager's <code>checkTopLevelWindow</code>
422 * method with <code>this</code>
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</code> of the target screen
427 * device. If <code>gc</code> is <code>null</code>, the system default
428 * <code>GraphicsConfiguration</code> is assumed
429 * @exception IllegalArgumentException if <code>gc</code>
430 * is not from a screen device
431 * @exception HeadlessException when
432 * <code>GraphicsEnvironment.isHeadless()</code> returns <code>true</code>
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</code>
517 * method is called with <code>this</code>
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</code>
521 * is used (that is, that method is not overriden), then this results in
522 * a call to the security manager's <code>checkPermission</code> method
523 * with an <code>AWTPermission("showWindowWithoutWarningBanner")</code>
524 * permission. It that method raises a SecurityException,
525 * <code>checkTopLevelWindow</code> 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()</code> returns <code>true</code>
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</code> 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</code>
546 * method with <code>this</code>
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</code> to act as owner or <code>null</code>
551 * if this window has no owner
552 * @exception IllegalArgumentException if the <code>owner</code>'s
553 * <code>GraphicsConfiguration</code> is not from a screen device
554 * @exception HeadlessException when
555 * <code>GraphicsEnvironment.isHeadless</code> returns <code>true</code>
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</code> as its owner. This window will not be focusable
570 * unless its nearest owning <code>Frame</code> or <code>Dialog</code>
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</code>
575 * method with <code>this</code>
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</code> to act as owner or
580 * <code>null</code> if this window has no owner
581 * @exception IllegalArgumentException if the <code>owner</code>'s
582 * <code>GraphicsConfiguration</code> is not from a screen device
583 * @exception HeadlessException when
584 * <code>GraphicsEnvironment.isHeadless()</code> returns
585 * <code>true</code>
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</code> and a <code>GraphicsConfiguration</code>
602 * of a screen device. The Window will not be focusable unless
603 * its nearest owning <code>Frame</code> or <code>Dialog</code>
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</code>
608 * method with <code>this</code>
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</code>
613 * if this window has no owner
614 * @param gc the <code>GraphicsConfiguration</code> of the target
615 * screen device; if <code>gc</code> is <code>null</code>,
616 * the system default <code>GraphicsConfiguration</code> is assumed
617 * @exception IllegalArgumentException if <code>gc</code>
618 * is not from a screen device
619 * @exception HeadlessException when
620 * <code>GraphicsEnvironment.isHeadless()</code> returns
621 * <code>true</code>
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.peer == 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.peer == null) {
804 parent.addNotify();
805 }
806 if (peer == null) {
807 addNotify();
808 }
809 Dimension newSize = getPreferredSize();
810 if (peer != null) {
811 setClientSize(newSize.width, newSize.height);
812 }
813
814 if(beforeFirstShow) {
815 isPacked = true;
816 }
817
818 validateUnconditionally();
819 }
820
821 /**
822 * Sets the minimum size of this window to a constant
823 * value. Subsequent calls to {@code getMinimumSize}
824 * will always return this value. If current window's
825 * size is less than {@code minimumSize} the size of the
826 * window is automatically enlarged to honor the minimum size.
827 * <p>
828 * If the {@code setSize} or {@code setBounds} methods
829 * are called afterwards with a width or height less than
830 * that was specified by the {@code setMinimumSize} method
831 * the window is automatically enlarged to meet
832 * the {@code minimumSize} value. The {@code minimumSize}
833 * value also affects the behaviour of the {@code pack} method.
834 * <p>
835 * The default behavior is restored by setting the minimum size
836 * parameter to the {@code null} value.
837 * <p>
838 * Resizing operation may be restricted if the user tries
839 * to resize window below the {@code minimumSize} value.
840 * This behaviour is platform-dependent.
841 *
842 * @param minimumSize the new minimum size of this window
843 * @see Component#setMinimumSize
844 * @see #getMinimumSize
845 * @see #isMinimumSizeSet
846 * @see #setSize(Dimension)
847 * @see #pack
848 * @since 1.6
849 */
850 public void setMinimumSize(Dimension minimumSize) {
851 synchronized (getTreeLock()) {
852 super.setMinimumSize(minimumSize);
853 Dimension size = getSize();
854 if (isMinimumSizeSet()) {
855 if (size.width < minimumSize.width || size.height < minimumSize.height) {
856 int nw = Math.max(width, minimumSize.width);
857 int nh = Math.max(height, minimumSize.height);
858 setSize(nw, nh);
859 }
860 }
861 if (peer != null) {
862 ((WindowPeer)peer).updateMinimumSize();
863 }
864 }
865 }
866
867 /**
868 * {@inheritDoc}
869 * <p>
870 * The {@code d.width} and {@code d.height} values
871 * are automatically enlarged if either is less than
872 * the minimum size as specified by previous call to
873 * {@code setMinimumSize}.
874 * <p>
875 * The method changes the geometry-related data. Therefore,
876 * the native windowing system may ignore such requests, or it may modify
877 * the requested data, so that the {@code Window} object is placed and sized
878 * in a way that corresponds closely to the desktop settings.
879 *
880 * @see #getSize
881 * @see #setBounds
882 * @see #setMinimumSize
883 * @since 1.6
884 */
885 public void setSize(Dimension d) {
886 super.setSize(d);
887 }
888
889 /**
890 * {@inheritDoc}
891 * <p>
892 * The {@code width} and {@code height} values
893 * are automatically enlarged if either is less than
894 * the minimum size as specified by previous call to
895 * {@code setMinimumSize}.
896 * <p>
897 * The method changes the geometry-related data. Therefore,
898 * the native windowing system may ignore such requests, or it may modify
899 * the requested data, so that the {@code Window} object is placed and sized
900 * in a way that corresponds closely to the desktop settings.
901 *
902 * @see #getSize
903 * @see #setBounds
904 * @see #setMinimumSize
905 * @since 1.6
906 */
907 public void setSize(int width, int height) {
908 super.setSize(width, height);
909 }
910
911 /**
912 * {@inheritDoc}
913 * <p>
914 * The method changes the geometry-related data. Therefore,
915 * the native windowing system may ignore such requests, or it may modify
916 * the requested data, so that the {@code Window} object is placed and sized
917 * in a way that corresponds closely to the desktop settings.
918 */
919 @Override
920 public void setLocation(int x, int y) {
921 super.setLocation(x, y);
922 }
923
924 /**
925 * {@inheritDoc}
926 * <p>
927 * The method changes the geometry-related data. Therefore,
928 * the native windowing system may ignore such requests, or it may modify
929 * the requested data, so that the {@code Window} object is placed and sized
930 * in a way that corresponds closely to the desktop settings.
931 */
932 @Override
933 public void setLocation(Point p) {
934 super.setLocation(p);
935 }
936
937 /**
938 * @deprecated As of JDK version 1.1,
939 * replaced by <code>setBounds(int, int, int, int)</code>.
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.peer != null && w.isShowing()) {
1073 ((WindowPeer)w.peer).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</code>, its subcomponents, and all of its owned
1126 * children. That is, the resources for these <code>Component</code>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</code> and its subcomponents can be made displayable
1131 * again by rebuilding the native resources with a subsequent call to
1132 * <code>pack</code> or <code>show</code>. The states of the recreated
1133 * <code>Window</code> and its subcomponents will be identical to the
1134 * states of these objects at the point where the <code>Window</code>
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 (peer != 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 DisposeAction action = new DisposeAction();
1204 if (EventQueue.isDispatchThread()) {
1205 action.run();
1206 }
1207 else {
1208 try {
1209 EventQueue.invokeAndWait(action);
1210 }
1211 catch (InterruptedException e) {
1212 System.err.println("Disposal was interrupted:");
1213 e.printStackTrace();
1214 }
1215 catch (InvocationTargetException e) {
1216 System.err.println("Exception during disposal:");
1217 e.printStackTrace();
1218 }
1219 }
1220 // Execute outside the Runnable because postWindowEvent is
1221 // synchronized on (this). We don't need to synchronize the call
1222 // on the EventQueue anyways.
1223 postWindowEvent(WindowEvent.WINDOW_CLOSED);
1224 }
1225
1226 /*
1227 * Should only be called while holding the tree lock.
1228 * It's overridden here because parent == owner in Window,
1229 * and we shouldn't adjust counter on owner
1230 */
1231 void adjustListeningChildrenOnParent(long mask, int num) {
1232 }
1233
1234 // Should only be called while holding tree lock
1235 void adjustDecendantsOnParent(int num) {
1236 // do nothing since parent == owner and we shouldn't
1237 // ajust counter on owner
1238 }
1239
1240 /**
1241 * If this Window is visible, brings this Window to the front and may make
1242 * it the focused Window.
1243 * <p>
1244 * Places this Window at the top of the stacking order and shows it in
1245 * front of any other Windows in this VM. No action will take place if this
1246 * Window is not visible. Some platforms do not allow Windows which own
1247 * other Windows to appear on top of those owned Windows. Some platforms
1248 * may not permit this VM to place its Windows above windows of native
1249 * applications, or Windows of other VMs. This permission may depend on
1250 * whether a Window in this VM is already focused. Every attempt will be
1251 * made to move this Window as high as possible in the stacking order;
1252 * however, developers should not assume that this method will move this
1253 * Window above all other windows in every situation.
1254 * <p>
1255 * Developers must never assume that this Window is the focused or active
1256 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED
1257 * event. On platforms where the top-most window is the focused window, this
1258 * method will <b>probably</b> focus this Window (if it is not already focused)
1259 * under the following conditions:
1260 * <ul>
1261 * <li> The window meets the requirements outlined in the
1262 * {@link #isFocusableWindow} method.
1263 * <li> The window's property {@code autoRequestFocus} is of the
1264 * {@code true} value.
1265 * <li> Native windowing system allows the window to get focused.
1266 * </ul>
1267 * On platforms where the stacking order does not typically affect the focused
1268 * window, this method will <b>probably</b> leave the focused and active
1269 * Windows unchanged.
1270 * <p>
1271 * If this method causes this Window to be focused, and this Window is a
1272 * Frame or a Dialog, it will also become activated. If this Window is
1273 * focused, but it is not a Frame or a Dialog, then the first Frame or
1274 * Dialog that is an owner of this Window will be activated.
1275 * <p>
1276 * If this window is blocked by modal dialog, then the blocking dialog
1277 * is brought to the front and remains above the blocked window.
1278 *
1279 * @see #toBack
1280 * @see #setAutoRequestFocus
1281 * @see #isFocusableWindow
1282 */
1283 public void toFront() {
1284 toFront_NoClientCode();
1285 }
1286
1287 // This functionality is implemented in a final package-private method
1288 // to insure that it cannot be overridden by client subclasses.
1289 final void toFront_NoClientCode() {
1290 if (visible) {
1291 WindowPeer peer = (WindowPeer)this.peer;
1292 if (peer != null) {
1293 peer.toFront();
1294 }
1295 if (isModalBlocked()) {
1296 modalBlocker.toFront_NoClientCode();
1297 }
1298 }
1299 }
1300
1301 /**
1302 * If this Window is visible, sends this Window to the back and may cause
1303 * it to lose focus or activation if it is the focused or active Window.
1304 * <p>
1305 * Places this Window at the bottom of the stacking order and shows it
1306 * behind any other Windows in this VM. No action will take place is this
1307 * Window is not visible. Some platforms do not allow Windows which are
1308 * owned by other Windows to appear below their owners. Every attempt will
1309 * be made to move this Window as low as possible in the stacking order;
1310 * however, developers should not assume that this method will move this
1311 * Window below all other windows in every situation.
1312 * <p>
1313 * Because of variations in native windowing systems, no guarantees about
1314 * changes to the focused and active Windows can be made. Developers must
1315 * never assume that this Window is no longer the focused or active Window
1316 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED
1317 * event. On platforms where the top-most window is the focused window,
1318 * this method will <b>probably</b> cause this Window to lose focus. In
1319 * that case, the next highest, focusable Window in this VM will receive
1320 * focus. On platforms where the stacking order does not typically affect
1321 * the focused window, this method will <b>probably</b> leave the focused
1322 * and active Windows unchanged.
1323 *
1324 * @see #toFront
1325 */
1326 public void toBack() {
1327 toBack_NoClientCode();
1328 }
1329
1330 // This functionality is implemented in a final package-private method
1331 // to insure that it cannot be overridden by client subclasses.
1332 final void toBack_NoClientCode() {
1333 if(isAlwaysOnTop()) {
1334 try {
1335 setAlwaysOnTop(false);
1336 }catch(SecurityException e) {
1337 }
1338 }
1339 if (visible) {
1340 WindowPeer peer = (WindowPeer)this.peer;
1341 if (peer != null) {
1342 peer.toBack();
1343 }
1344 }
1345 }
1346
1347 /**
1348 * Returns the toolkit of this frame.
1349 * @return the toolkit of this window.
1350 * @see Toolkit
1351 * @see Toolkit#getDefaultToolkit
1352 * @see Component#getToolkit
1353 */
1354 public Toolkit getToolkit() {
1355 return Toolkit.getDefaultToolkit();
1356 }
1357
1358 /**
1359 * Gets the warning string that is displayed with this window.
1360 * If this window is insecure, the warning string is displayed
1361 * somewhere in the visible area of the window. A window is
1362 * insecure if there is a security manager, and the security
1363 * manager's <code>checkTopLevelWindow</code> method returns
1364 * <code>false</code> when this window is passed to it as an
1365 * argument.
1366 * <p>
1367 * If the window is secure, then <code>getWarningString</code>
1368 * returns <code>null</code>. If the window is insecure, this
1369 * method checks for the system property
1370 * <code>awt.appletWarning</code>
1371 * and returns the string value of that property.
1372 * @return the warning string for this window.
1373 * @see java.lang.SecurityManager#checkTopLevelWindow(java.lang.Object)
1374 */
1375 public final String getWarningString() {
1376 return warningString;
1377 }
1378
1379 private void setWarningString() {
1380 warningString = null;
1381 SecurityManager sm = System.getSecurityManager();
1382 if (sm != null) {
1383 if (!sm.checkTopLevelWindow(this)) {
1384 // make sure the privileged action is only
1385 // for getting the property! We don't want the
1386 // above checkTopLevelWindow call to always succeed!
1387 warningString = AccessController.doPrivileged(
1388 new GetPropertyAction("awt.appletWarning",
1389 "Java Applet Window"));
1390 }
1391 }
1392 }
1393
1394 /**
1395 * Gets the <code>Locale</code> object that is associated
1396 * with this window, if the locale has been set.
1397 * If no locale has been set, then the default locale
1398 * is returned.
1399 * @return the locale that is set for this window.
1400 * @see java.util.Locale
1401 * @since JDK1.1
1402 */
1403 public Locale getLocale() {
1404 if (this.locale == null) {
1405 return Locale.getDefault();
1406 }
1407 return this.locale;
1408 }
1409
1410 /**
1411 * Gets the input context for this window. A window always has an input context,
1412 * which is shared by subcomponents unless they create and set their own.
1413 * @see Component#getInputContext
1414 * @since 1.2
1415 */
1416 public InputContext getInputContext() {
1417 synchronized (inputContextLock) {
1418 if (inputContext == null) {
1419 inputContext = InputContext.getInstance();
1420 }
1421 }
1422 return inputContext;
1423 }
1424
1425 /**
1426 * Set the cursor image to a specified cursor.
1427 * <p>
1428 * The method may have no visual effect if the Java platform
1429 * implementation and/or the native system do not support
1430 * changing the mouse cursor shape.
1431 * @param cursor One of the constants defined
1432 * by the <code>Cursor</code> class. If this parameter is null
1433 * then the cursor for this window will be set to the type
1434 * Cursor.DEFAULT_CURSOR.
1435 * @see Component#getCursor
1436 * @see Cursor
1437 * @since JDK1.1
1438 */
1439 public void setCursor(Cursor cursor) {
1440 if (cursor == null) {
1441 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
1442 }
1443 super.setCursor(cursor);
1444 }
1445
1446 /**
1447 * Returns the owner of this window.
1448 * @since 1.2
1449 */
1450 public Window getOwner() {
1451 return getOwner_NoClientCode();
1452 }
1453 final Window getOwner_NoClientCode() {
1454 return (Window)parent;
1455 }
1456
1457 /**
1458 * Return an array containing all the windows this
1459 * window currently owns.
1460 * @since 1.2
1461 */
1462 public Window[] getOwnedWindows() {
1463 return getOwnedWindows_NoClientCode();
1464 }
1465 final Window[] getOwnedWindows_NoClientCode() {
1466 Window realCopy[];
1467
1468 synchronized(ownedWindowList) {
1469 // Recall that ownedWindowList is actually a Vector of
1470 // WeakReferences and calling get() on one of these references
1471 // may return null. Make two arrays-- one the size of the
1472 // Vector (fullCopy with size fullSize), and one the size of
1473 // all non-null get()s (realCopy with size realSize).
1474 int fullSize = ownedWindowList.size();
1475 int realSize = 0;
1476 Window fullCopy[] = new Window[fullSize];
1477
1478 for (int i = 0; i < fullSize; i++) {
1479 fullCopy[realSize] = ownedWindowList.elementAt(i).get();
1480
1481 if (fullCopy[realSize] != null) {
1482 realSize++;
1483 }
1484 }
1485
1486 if (fullSize != realSize) {
1487 realCopy = Arrays.copyOf(fullCopy, realSize);
1488 } else {
1489 realCopy = fullCopy;
1490 }
1491 }
1492
1493 return realCopy;
1494 }
1495
1496 boolean isModalBlocked() {
1497 return modalBlocker != null;
1498 }
1499
1500 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) {
1501 this.modalBlocker = blocked ? blocker : null;
1502 if (peerCall) {
1503 WindowPeer peer = (WindowPeer)this.peer;
1504 if (peer != null) {
1505 peer.setModalBlocked(blocker, blocked);
1506 }
1507 }
1508 }
1509
1510 Dialog getModalBlocker() {
1511 return modalBlocker;
1512 }
1513
1514 /*
1515 * Returns a list of all displayable Windows, i. e. all the
1516 * Windows which peer is not null.
1517 *
1518 * @see #addNotify
1519 * @see #removeNotify
1520 */
1521 static IdentityArrayList<Window> getAllWindows() {
1522 synchronized (allWindows) {
1523 IdentityArrayList<Window> v = new IdentityArrayList<Window>();
1524 v.addAll(allWindows);
1525 return v;
1526 }
1527 }
1528
1529 static IdentityArrayList<Window> getAllUnblockedWindows() {
1530 synchronized (allWindows) {
1531 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>();
1532 for (int i = 0; i < allWindows.size(); i++) {
1533 Window w = allWindows.get(i);
1534 if (!w.isModalBlocked()) {
1535 unblocked.add(w);
1536 }
1537 }
1538 return unblocked;
1539 }
1540 }
1541
1542 private static Window[] getWindows(AppContext appContext) {
1543 synchronized (Window.class) {
1544 Window realCopy[];
1545 @SuppressWarnings("unchecked")
1546 Vector<WeakReference<Window>> windowList =
1547 (Vector<WeakReference<Window>>)appContext.get(Window.class);
1548 if (windowList != null) {
1549 int fullSize = windowList.size();
1550 int realSize = 0;
1551 Window fullCopy[] = new Window[fullSize];
1552 for (int i = 0; i < fullSize; i++) {
1553 Window w = windowList.get(i).get();
1554 if (w != null) {
1555 fullCopy[realSize++] = w;
1556 }
1557 }
1558 if (fullSize != realSize) {
1559 realCopy = Arrays.copyOf(fullCopy, realSize);
1560 } else {
1561 realCopy = fullCopy;
1562 }
1563 } else {
1564 realCopy = new Window[0];
1565 }
1566 return realCopy;
1567 }
1568 }
1569
1570 /**
1571 * Returns an array of all {@code Window}s, both owned and ownerless,
1572 * created by this application.
1573 * If called from an applet, the array includes only the {@code Window}s
1574 * accessible by that applet.
1575 * <p>
1576 * <b>Warning:</b> this method may return system created windows, such
1577 * as a print dialog. Applications should not assume the existence of
1578 * these dialogs, nor should an application assume anything about these
1579 * dialogs such as component positions, <code>LayoutManager</code>s
1580 * or serialization.
1581 *
1582 * @see Frame#getFrames
1583 * @see Window#getOwnerlessWindows
1584 *
1585 * @since 1.6
1586 */
1587 public static Window[] getWindows() {
1588 return getWindows(AppContext.getAppContext());
1589 }
1590
1591 /**
1592 * Returns an array of all {@code Window}s created by this application
1593 * that have no owner. They include {@code Frame}s and ownerless
1594 * {@code Dialog}s and {@code Window}s.
1595 * If called from an applet, the array includes only the {@code Window}s
1596 * accessible by that applet.
1597 * <p>
1598 * <b>Warning:</b> this method may return system created windows, such
1599 * as a print dialog. Applications should not assume the existence of
1600 * these dialogs, nor should an application assume anything about these
1601 * dialogs such as component positions, <code>LayoutManager</code>s
1602 * or serialization.
1603 *
1604 * @see Frame#getFrames
1605 * @see Window#getWindows()
1606 *
1607 * @since 1.6
1608 */
1609 public static Window[] getOwnerlessWindows() {
1610 Window[] allWindows = Window.getWindows();
1611
1612 int ownerlessCount = 0;
1613 for (Window w : allWindows) {
1614 if (w.getOwner() == null) {
1615 ownerlessCount++;
1616 }
1617 }
1618
1619 Window[] ownerless = new Window[ownerlessCount];
1620 int c = 0;
1621 for (Window w : allWindows) {
1622 if (w.getOwner() == null) {
1623 ownerless[c++] = w;
1624 }
1625 }
1626
1627 return ownerless;
1628 }
1629
1630 Window getDocumentRoot() {
1631 synchronized (getTreeLock()) {
1632 Window w = this;
1633 while (w.getOwner() != null) {
1634 w = w.getOwner();
1635 }
1636 return w;
1637 }
1638 }
1639
1640 /**
1641 * Specifies the modal exclusion type for this window. If a window is modal
1642 * excluded, it is not blocked by some modal dialogs. See {@link
1643 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for
1644 * possible modal exclusion types.
1645 * <p>
1646 * If the given type is not supported, <code>NO_EXCLUDE</code> is used.
1647 * <p>
1648 * Note: changing the modal exclusion type for a visible window may have no
1649 * effect until it is hidden and then shown again.
1650 *
1651 * @param exclusionType the modal exclusion type for this window; a <code>null</code>
1652 * value is equivivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE
1653 * NO_EXCLUDE}
1654 * @throws SecurityException if the calling thread does not have permission
1655 * to set the modal exclusion property to the window with the given
1656 * <code>exclusionType</code>
1657 * @see java.awt.Dialog.ModalExclusionType
1658 * @see java.awt.Window#getModalExclusionType
1659 * @see java.awt.Toolkit#isModalExclusionTypeSupported
1660 *
1661 * @since 1.6
1662 */
1663 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) {
1664 if (exclusionType == null) {
1665 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1666 }
1667 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) {
1668 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE;
1669 }
1670 if (modalExclusionType == exclusionType) {
1671 return;
1672 }
1673 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) {
1674 SecurityManager sm = System.getSecurityManager();
1675 if (sm != null) {
1676 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION);
1677 }
1678 }
1679 modalExclusionType = exclusionType;
1680
1681 // if we want on-fly changes, we need to uncomment the lines below
1682 // and override the method in Dialog to use modalShow() instead
1683 // of updateChildrenBlocking()
1684 /*
1685 if (isModalBlocked()) {
1686 modalBlocker.unblockWindow(this);
1687 }
1688 Dialog.checkShouldBeBlocked(this);
1689 updateChildrenBlocking();
1690 */
1691 }
1692
1693 /**
1694 * Returns the modal exclusion type of this window.
1695 *
1696 * @return the modal exclusion type of this window
1697 *
1698 * @see java.awt.Dialog.ModalExclusionType
1699 * @see java.awt.Window#setModalExclusionType
1700 *
1701 * @since 1.6
1702 */
1703 public Dialog.ModalExclusionType getModalExclusionType() {
1704 return modalExclusionType;
1705 }
1706
1707 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) {
1708 if ((modalExclusionType != null) &&
1709 modalExclusionType.compareTo(exclusionType) >= 0)
1710 {
1711 return true;
1712 }
1713 Window owner = getOwner_NoClientCode();
1714 return (owner != null) && owner.isModalExcluded(exclusionType);
1715 }
1716
1717 void updateChildrenBlocking() {
1718 Vector<Window> childHierarchy = new Vector<Window>();
1719 Window[] ownedWindows = getOwnedWindows();
1720 for (int i = 0; i < ownedWindows.length; i++) {
1721 childHierarchy.add(ownedWindows[i]);
1722 }
1723 int k = 0;
1724 while (k < childHierarchy.size()) {
1725 Window w = childHierarchy.get(k);
1726 if (w.isVisible()) {
1727 if (w.isModalBlocked()) {
1728 Dialog blocker = w.getModalBlocker();
1729 blocker.unblockWindow(w);
1730 }
1731 Dialog.checkShouldBeBlocked(w);
1732 Window[] wOwned = w.getOwnedWindows();
1733 for (int j = 0; j < wOwned.length; j++) {
1734 childHierarchy.add(wOwned[j]);
1735 }
1736 }
1737 k++;
1738 }
1739 }
1740
1741 /**
1742 * Adds the specified window listener to receive window events from
1743 * this window.
1744 * If l is null, no exception is thrown and no action is performed.
1745 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1746 * >AWT Threading Issues</a> for details on AWT's threading model.
1747 *
1748 * @param l the window listener
1749 * @see #removeWindowListener
1750 * @see #getWindowListeners
1751 */
1752 public synchronized void addWindowListener(WindowListener l) {
1753 if (l == null) {
1754 return;
1755 }
1756 newEventsOnly = true;
1757 windowListener = AWTEventMulticaster.add(windowListener, l);
1758 }
1759
1760 /**
1761 * Adds the specified window state listener to receive window
1762 * events from this window. If <code>l</code> is <code>null</code>,
1763 * no exception is thrown and no action is performed.
1764 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1765 * >AWT Threading Issues</a> for details on AWT's threading model.
1766 *
1767 * @param l the window state listener
1768 * @see #removeWindowStateListener
1769 * @see #getWindowStateListeners
1770 * @since 1.4
1771 */
1772 public synchronized void addWindowStateListener(WindowStateListener l) {
1773 if (l == null) {
1774 return;
1775 }
1776 windowStateListener = AWTEventMulticaster.add(windowStateListener, l);
1777 newEventsOnly = true;
1778 }
1779
1780 /**
1781 * Adds the specified window focus listener to receive window events
1782 * from this window.
1783 * If l is null, no exception is thrown and no action is performed.
1784 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1785 * >AWT Threading Issues</a> for details on AWT's threading model.
1786 *
1787 * @param l the window focus listener
1788 * @see #removeWindowFocusListener
1789 * @see #getWindowFocusListeners
1790 * @since 1.4
1791 */
1792 public synchronized void addWindowFocusListener(WindowFocusListener l) {
1793 if (l == null) {
1794 return;
1795 }
1796 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l);
1797 newEventsOnly = true;
1798 }
1799
1800 /**
1801 * Removes the specified window listener so that it no longer
1802 * receives window events from this window.
1803 * If l is null, no exception is thrown and no action is performed.
1804 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1805 * >AWT Threading Issues</a> for details on AWT's threading model.
1806 *
1807 * @param l the window listener
1808 * @see #addWindowListener
1809 * @see #getWindowListeners
1810 */
1811 public synchronized void removeWindowListener(WindowListener l) {
1812 if (l == null) {
1813 return;
1814 }
1815 windowListener = AWTEventMulticaster.remove(windowListener, l);
1816 }
1817
1818 /**
1819 * Removes the specified window state listener so that it no
1820 * longer receives window events from this window. If
1821 * <code>l</code> is <code>null</code>, no exception is thrown and
1822 * no action is performed.
1823 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1824 * >AWT Threading Issues</a> for details on AWT's threading model.
1825 *
1826 * @param l the window state listener
1827 * @see #addWindowStateListener
1828 * @see #getWindowStateListeners
1829 * @since 1.4
1830 */
1831 public synchronized void removeWindowStateListener(WindowStateListener l) {
1832 if (l == null) {
1833 return;
1834 }
1835 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l);
1836 }
1837
1838 /**
1839 * Removes the specified window focus listener so that it no longer
1840 * receives window events from this window.
1841 * If l is null, no exception is thrown and no action is performed.
1842 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
1843 * >AWT Threading Issues</a> for details on AWT's threading model.
1844 *
1845 * @param l the window focus listener
1846 * @see #addWindowFocusListener
1847 * @see #getWindowFocusListeners
1848 * @since 1.4
1849 */
1850 public synchronized void removeWindowFocusListener(WindowFocusListener l) {
1851 if (l == null) {
1852 return;
1853 }
1854 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l);
1855 }
1856
1857 /**
1858 * Returns an array of all the window listeners
1859 * registered on this window.
1860 *
1861 * @return all of this window's <code>WindowListener</code>s
1862 * or an empty array if no window
1863 * listeners are currently registered
1864 *
1865 * @see #addWindowListener
1866 * @see #removeWindowListener
1867 * @since 1.4
1868 */
1869 public synchronized WindowListener[] getWindowListeners() {
1870 return getListeners(WindowListener.class);
1871 }
1872
1873 /**
1874 * Returns an array of all the window focus listeners
1875 * registered on this window.
1876 *
1877 * @return all of this window's <code>WindowFocusListener</code>s
1878 * or an empty array if no window focus
1879 * listeners are currently registered
1880 *
1881 * @see #addWindowFocusListener
1882 * @see #removeWindowFocusListener
1883 * @since 1.4
1884 */
1885 public synchronized WindowFocusListener[] getWindowFocusListeners() {
1886 return getListeners(WindowFocusListener.class);
1887 }
1888
1889 /**
1890 * Returns an array of all the window state listeners
1891 * registered on this window.
1892 *
1893 * @return all of this window's <code>WindowStateListener</code>s
1894 * or an empty array if no window state
1895 * listeners are currently registered
1896 *
1897 * @see #addWindowStateListener
1898 * @see #removeWindowStateListener
1899 * @since 1.4
1900 */
1901 public synchronized WindowStateListener[] getWindowStateListeners() {
1902 return getListeners(WindowStateListener.class);
1903 }
1904
1905
1906 /**
1907 * Returns an array of all the objects currently registered
1908 * as <code><em>Foo</em>Listener</code>s
1909 * upon this <code>Window</code>.
1910 * <code><em>Foo</em>Listener</code>s are registered using the
1911 * <code>add<em>Foo</em>Listener</code> method.
1912 *
1913 * <p>
1914 *
1915 * You can specify the <code>listenerType</code> argument
1916 * with a class literal, such as
1917 * <code><em>Foo</em>Listener.class</code>.
1918 * For example, you can query a
1919 * <code>Window</code> <code>w</code>
1920 * for its window listeners with the following code:
1921 *
1922 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre>
1923 *
1924 * If no such listeners exist, this method returns an empty array.
1925 *
1926 * @param listenerType the type of listeners requested; this parameter
1927 * should specify an interface that descends from
1928 * <code>java.util.EventListener</code>
1929 * @return an array of all objects registered as
1930 * <code><em>Foo</em>Listener</code>s on this window,
1931 * or an empty array if no such
1932 * listeners have been added
1933 * @exception ClassCastException if <code>listenerType</code>
1934 * doesn't specify a class or interface that implements
1935 * <code>java.util.EventListener</code>
1936 * @exception NullPointerException if {@code listenerType} is {@code null}
1937 *
1938 * @see #getWindowListeners
1939 * @since 1.3
1940 */
1941 public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
1942 EventListener l = null;
1943 if (listenerType == WindowFocusListener.class) {
1944 l = windowFocusListener;
1945 } else if (listenerType == WindowStateListener.class) {
1946 l = windowStateListener;
1947 } else if (listenerType == WindowListener.class) {
1948 l = windowListener;
1949 } else {
1950 return super.getListeners(listenerType);
1951 }
1952 return AWTEventMulticaster.getListeners(l, listenerType);
1953 }
1954
1955 // REMIND: remove when filtering is handled at lower level
1956 boolean eventEnabled(AWTEvent e) {
1957 switch(e.id) {
1958 case WindowEvent.WINDOW_OPENED:
1959 case WindowEvent.WINDOW_CLOSING:
1960 case WindowEvent.WINDOW_CLOSED:
1961 case WindowEvent.WINDOW_ICONIFIED:
1962 case WindowEvent.WINDOW_DEICONIFIED:
1963 case WindowEvent.WINDOW_ACTIVATED:
1964 case WindowEvent.WINDOW_DEACTIVATED:
1965 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 ||
1966 windowListener != null) {
1967 return true;
1968 }
1969 return false;
1970 case WindowEvent.WINDOW_GAINED_FOCUS:
1971 case WindowEvent.WINDOW_LOST_FOCUS:
1972 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 ||
1973 windowFocusListener != null) {
1974 return true;
1975 }
1976 return false;
1977 case WindowEvent.WINDOW_STATE_CHANGED:
1978 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 ||
1979 windowStateListener != null) {
1980 return true;
1981 }
1982 return false;
1983 default:
1984 break;
1985 }
1986 return super.eventEnabled(e);
1987 }
1988
1989 /**
1990 * Processes events on this window. If the event is an
1991 * <code>WindowEvent</code>, it invokes the
1992 * <code>processWindowEvent</code> method, else it invokes its
1993 * superclass's <code>processEvent</code>.
1994 * <p>Note that if the event parameter is <code>null</code>
1995 * the behavior is unspecified and may result in an
1996 * exception.
1997 *
1998 * @param e the event
1999 */
2000 protected void processEvent(AWTEvent e) {
2001 if (e instanceof WindowEvent) {
2002 switch (e.getID()) {
2003 case WindowEvent.WINDOW_OPENED:
2004 case WindowEvent.WINDOW_CLOSING:
2005 case WindowEvent.WINDOW_CLOSED:
2006 case WindowEvent.WINDOW_ICONIFIED:
2007 case WindowEvent.WINDOW_DEICONIFIED:
2008 case WindowEvent.WINDOW_ACTIVATED:
2009 case WindowEvent.WINDOW_DEACTIVATED:
2010 processWindowEvent((WindowEvent)e);
2011 break;
2012 case WindowEvent.WINDOW_GAINED_FOCUS:
2013 case WindowEvent.WINDOW_LOST_FOCUS:
2014 processWindowFocusEvent((WindowEvent)e);
2015 break;
2016 case WindowEvent.WINDOW_STATE_CHANGED:
2017 processWindowStateEvent((WindowEvent)e);
2018 break;
2019 }
2020 return;
2021 }
2022 super.processEvent(e);
2023 }
2024
2025 /**
2026 * Processes window events occurring on this window by
2027 * dispatching them to any registered WindowListener objects.
2028 * NOTE: This method will not be called unless window events
2029 * are enabled for this component; this happens when one of the
2030 * following occurs:
2031 * <ul>
2032 * <li>A WindowListener object is registered via
2033 * <code>addWindowListener</code>
2034 * <li>Window events are enabled via <code>enableEvents</code>
2035 * </ul>
2036 * <p>Note that if the event parameter is <code>null</code>
2037 * the behavior is unspecified and may result in an
2038 * exception.
2039 *
2040 * @param e the window event
2041 * @see Component#enableEvents
2042 */
2043 protected void processWindowEvent(WindowEvent e) {
2044 WindowListener listener = windowListener;
2045 if (listener != null) {
2046 switch(e.getID()) {
2047 case WindowEvent.WINDOW_OPENED:
2048 listener.windowOpened(e);
2049 break;
2050 case WindowEvent.WINDOW_CLOSING:
2051 listener.windowClosing(e);
2052 break;
2053 case WindowEvent.WINDOW_CLOSED:
2054 listener.windowClosed(e);
2055 break;
2056 case WindowEvent.WINDOW_ICONIFIED:
2057 listener.windowIconified(e);
2058 break;
2059 case WindowEvent.WINDOW_DEICONIFIED:
2060 listener.windowDeiconified(e);
2061 break;
2062 case WindowEvent.WINDOW_ACTIVATED:
2063 listener.windowActivated(e);
2064 break;
2065 case WindowEvent.WINDOW_DEACTIVATED:
2066 listener.windowDeactivated(e);
2067 break;
2068 default:
2069 break;
2070 }
2071 }
2072 }
2073
2074 /**
2075 * Processes window focus event occuring on this window by
2076 * dispatching them to any registered WindowFocusListener objects.
2077 * NOTE: this method will not be called unless window focus events
2078 * are enabled for this window. This happens when one of the
2079 * following occurs:
2080 * <ul>
2081 * <li>a WindowFocusListener is registered via
2082 * <code>addWindowFocusListener</code>
2083 * <li>Window focus events are enabled via <code>enableEvents</code>
2084 * </ul>
2085 * <p>Note that if the event parameter is <code>null</code>
2086 * the behavior is unspecified and may result in an
2087 * exception.
2088 *
2089 * @param e the window focus event
2090 * @see Component#enableEvents
2091 * @since 1.4
2092 */
2093 protected void processWindowFocusEvent(WindowEvent e) {
2094 WindowFocusListener listener = windowFocusListener;
2095 if (listener != null) {
2096 switch (e.getID()) {
2097 case WindowEvent.WINDOW_GAINED_FOCUS:
2098 listener.windowGainedFocus(e);
2099 break;
2100 case WindowEvent.WINDOW_LOST_FOCUS:
2101 listener.windowLostFocus(e);
2102 break;
2103 default:
2104 break;
2105 }
2106 }
2107 }
2108
2109 /**
2110 * Processes window state event occuring on this window by
2111 * dispatching them to any registered <code>WindowStateListener</code>
2112 * objects.
2113 * NOTE: this method will not be called unless window state events
2114 * are enabled for this window. This happens when one of the
2115 * following occurs:
2116 * <ul>
2117 * <li>a <code>WindowStateListener</code> is registered via
2118 * <code>addWindowStateListener</code>
2119 * <li>window state events are enabled via <code>enableEvents</code>
2120 * </ul>
2121 * <p>Note that if the event parameter is <code>null</code>
2122 * the behavior is unspecified and may result in an
2123 * exception.
2124 *
2125 * @param e the window state event
2126 * @see java.awt.Component#enableEvents
2127 * @since 1.4
2128 */
2129 protected void processWindowStateEvent(WindowEvent e) {
2130 WindowStateListener listener = windowStateListener;
2131 if (listener != null) {
2132 switch (e.getID()) {
2133 case WindowEvent.WINDOW_STATE_CHANGED:
2134 listener.windowStateChanged(e);
2135 break;
2136 default:
2137 break;
2138 }
2139 }
2140 }
2141
2142 /**
2143 * Implements a debugging hook -- checks to see if
2144 * the user has typed <i>control-shift-F1</i>. If so,
2145 * the list of child windows is dumped to <code>System.out</code>.
2146 * @param e the keyboard event
2147 */
2148 void preProcessKeyEvent(KeyEvent e) {
2149 // Dump the list of child windows to System.out.
2150 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 &&
2151 e.isControlDown() && e.isShiftDown() &&
2152 e.getID() == KeyEvent.KEY_PRESSED) {
2153 list(System.out, 0);
2154 }
2155 }
2156
2157 void postProcessKeyEvent(KeyEvent e) {
2158 // Do nothing
2159 }
2160
2161
2162 /**
2163 * Sets whether this window should always be above other windows. If
2164 * there are multiple always-on-top windows, their relative order is
2165 * unspecified and platform dependent.
2166 * <p>
2167 * If some other window is already always-on-top then the
2168 * relative order between these windows is unspecified (depends on
2169 * platform). No window can be brought to be over the always-on-top
2170 * window except maybe another always-on-top window.
2171 * <p>
2172 * All windows owned by an always-on-top window inherit this state and
2173 * automatically become always-on-top. If a window ceases to be
2174 * always-on-top, the windows that it owns will no longer be
2175 * always-on-top. When an always-on-top window is sent {@link #toBack
2176 * toBack}, its always-on-top state is set to <code>false</code>.
2177 *
2178 * <p> When this method is called on a window with a value of
2179 * <code>true</code>, and the window is visible and the platform
2180 * supports always-on-top for this window, the window is immediately
2181 * brought forward, "sticking" it in the top-most position. If the
2182 * window isn`t currently visible, this method sets the always-on-top
2183 * state to <code>true</code> but does not bring the window forward.
2184 * When the window is later shown, it will be always-on-top.
2185 *
2186 * <p> When this method is called on a window with a value of
2187 * <code>false</code> the always-on-top state is set to normal. The
2188 * window remains in the top-most position but it`s z-order can be
2189 * changed as for any other window. Calling this method with a value
2190 * of <code>false</code> on a window that has a normal state has no
2191 * effect. Setting the always-on-top state to false has no effect on
2192 * the relative z-order of the windows if there are no other
2193 * always-on-top windows.
2194 *
2195 * <p><b>Note</b>: some platforms might not support always-on-top
2196 * windows. To detect if always-on-top windows are supported by the
2197 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and
2198 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode
2199 * isn't supported by the toolkit or for this window, calling this
2200 * method has no effect.
2201 * <p>
2202 * If a SecurityManager is installed, the calling thread must be
2203 * granted the AWTPermission "setWindowAlwaysOnTop" in
2204 * order to set the value of this property. If this
2205 * permission is not granted, this method will throw a
2206 * SecurityException, and the current value of the property will
2207 * be left unchanged.
2208 *
2209 * @param alwaysOnTop true if the window should always be above other
2210 * windows
2211 * @throws SecurityException if the calling thread does not have
2212 * permission to set the value of always-on-top property
2213 * @see #isAlwaysOnTop
2214 * @see #toFront
2215 * @see #toBack
2216 * @see AWTPermission
2217 * @see #isAlwaysOnTopSupported
2218 * @see Toolkit#isAlwaysOnTopSupported
2219 * @since 1.5
2220 */
2221 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException {
2222 SecurityManager security = System.getSecurityManager();
2223 if (security != null) {
2224 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION);
2225 }
2226
2227 boolean oldAlwaysOnTop;
2228 synchronized(this) {
2229 oldAlwaysOnTop = this.alwaysOnTop;
2230 this.alwaysOnTop = alwaysOnTop;
2231 }
2232 if (oldAlwaysOnTop != alwaysOnTop ) {
2233 if (isAlwaysOnTopSupported()) {
2234 WindowPeer peer = (WindowPeer)this.peer;
2235 synchronized(getTreeLock()) {
2236 if (peer != null) {
2237 peer.setAlwaysOnTop(alwaysOnTop);
2238 }
2239 }
2240 }
2241 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop);
2242 }
2243 }
2244
2245 /**
2246 * Returns whether the always-on-top mode is supported for this
2247 * window. Some platforms may not support always-on-top windows, some
2248 * may support only some kinds of top-level windows; for example,
2249 * a platform may not support always-on-top modal dialogs.
2250 * @return <code>true</code>, if the always-on-top mode is
2251 * supported by the toolkit and for this window,
2252 * <code>false</code>, if always-on-top mode is not supported
2253 * for this window or toolkit doesn't support always-on-top windows.
2254 * @see #setAlwaysOnTop(boolean)
2255 * @see Toolkit#isAlwaysOnTopSupported
2256 * @since 1.6
2257 */
2258 public boolean isAlwaysOnTopSupported() {
2259 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported();
2260 }
2261
2262
2263 /**
2264 * Returns whether this window is an always-on-top window.
2265 * @return <code>true</code>, if the window is in always-on-top state,
2266 * <code>false</code> otherwise
2267 * @see #setAlwaysOnTop
2268 * @since 1.5
2269 */
2270 public final boolean isAlwaysOnTop() {
2271 return alwaysOnTop;
2272 }
2273
2274
2275 /**
2276 * Returns the child Component of this Window that has focus if this Window
2277 * is focused; returns null otherwise.
2278 *
2279 * @return the child Component with focus, or null if this Window is not
2280 * focused
2281 * @see #getMostRecentFocusOwner
2282 * @see #isFocused
2283 */
2284 public Component getFocusOwner() {
2285 return (isFocused())
2286 ? KeyboardFocusManager.getCurrentKeyboardFocusManager().
2287 getFocusOwner()
2288 : null;
2289 }
2290
2291 /**
2292 * Returns the child Component of this Window that will receive the focus
2293 * when this Window is focused. If this Window is currently focused, this
2294 * method returns the same Component as <code>getFocusOwner()</code>. If
2295 * this Window is not focused, then the child Component that most recently
2296 * requested focus will be returned. If no child Component has ever
2297 * requested focus, and this is a focusable Window, then this Window's
2298 * initial focusable Component is returned. If no child Component has ever
2299 * requested focus, and this is a non-focusable Window, null is returned.
2300 *
2301 * @return the child Component that will receive focus when this Window is
2302 * focused
2303 * @see #getFocusOwner
2304 * @see #isFocused
2305 * @see #isFocusableWindow
2306 * @since 1.4
2307 */
2308 public Component getMostRecentFocusOwner() {
2309 if (isFocused()) {
2310 return getFocusOwner();
2311 } else {
2312 Component mostRecent =
2313 KeyboardFocusManager.getMostRecentFocusOwner(this);
2314 if (mostRecent != null) {
2315 return mostRecent;
2316 } else {
2317 return (isFocusableWindow())
2318 ? getFocusTraversalPolicy().getInitialComponent(this)
2319 : null;
2320 }
2321 }
2322 }
2323
2324 /**
2325 * Returns whether this Window is active. Only a Frame or a Dialog may be
2326 * active. The native windowing system may denote the active Window or its
2327 * children with special decorations, such as a highlighted title bar. The
2328 * active Window is always either the focused Window, or the first Frame or
2329 * Dialog that is an owner of the focused Window.
2330 *
2331 * @return whether this is the active Window.
2332 * @see #isFocused
2333 * @since 1.4
2334 */
2335 public boolean isActive() {
2336 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2337 getActiveWindow() == this);
2338 }
2339
2340 /**
2341 * Returns whether this Window is focused. If there exists a focus owner,
2342 * the focused Window is the Window that is, or contains, that focus owner.
2343 * If there is no focus owner, then no Window is focused.
2344 * <p>
2345 * If the focused Window is a Frame or a Dialog it is also the active
2346 * Window. Otherwise, the active Window is the first Frame or Dialog that
2347 * is an owner of the focused Window.
2348 *
2349 * @return whether this is the focused Window.
2350 * @see #isActive
2351 * @since 1.4
2352 */
2353 public boolean isFocused() {
2354 return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
2355 getGlobalFocusedWindow() == this);
2356 }
2357
2358 /**
2359 * Gets a focus traversal key for this Window. (See <code>
2360 * setFocusTraversalKeys</code> for a full description of each key.)
2361 * <p>
2362 * If the traversal key has not been explicitly set for this Window,
2363 * then this Window's parent's traversal key is returned. If the
2364 * traversal key has not been explicitly set for any of this Window's
2365 * ancestors, then the current KeyboardFocusManager's default traversal key
2366 * is returned.
2367 *
2368 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2369 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2370 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2371 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2372 * @return the AWTKeyStroke for the specified key
2373 * @see Container#setFocusTraversalKeys
2374 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
2375 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
2376 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
2377 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS
2378 * @throws IllegalArgumentException if id is not one of
2379 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
2380 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
2381 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or
2382 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS
2383 * @since 1.4
2384 */
2385 @SuppressWarnings("unchecked")
2386 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
2387 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) {
2388 throw new IllegalArgumentException("invalid focus traversal key identifier");
2389 }
2390
2391 // Okay to return Set directly because it is an unmodifiable view
2392 @SuppressWarnings("rawtypes")
2393 Set keystrokes = (focusTraversalKeys != null)
2394 ? focusTraversalKeys[id]
2395 : null;
2396
2397 if (keystrokes != null) {
2398 return keystrokes;
2399 } else {
2400 return KeyboardFocusManager.getCurrentKeyboardFocusManager().
2401 getDefaultFocusTraversalKeys(id);
2402 }
2403 }
2404
2405 /**
2406 * Does nothing because Windows must always be roots of a focus traversal
2407 * cycle. The passed-in value is ignored.
2408 *
2409 * @param focusCycleRoot this value is ignored
2410 * @see #isFocusCycleRoot
2411 * @see Container#setFocusTraversalPolicy
2412 * @see Container#getFocusTraversalPolicy
2413 * @since 1.4
2414 */
2415 public final void setFocusCycleRoot(boolean focusCycleRoot) {
2416 }
2417
2418 /**
2419 * Always returns <code>true</code> because all Windows must be roots of a
2420 * focus traversal cycle.
2421 *
2422 * @return <code>true</code>
2423 * @see #setFocusCycleRoot
2424 * @see Container#setFocusTraversalPolicy
2425 * @see Container#getFocusTraversalPolicy
2426 * @since 1.4
2427 */
2428 public final boolean isFocusCycleRoot() {
2429 return true;
2430 }
2431
2432 /**
2433 * Always returns <code>null</code> because Windows have no ancestors; they
2434 * represent the top of the Component hierarchy.
2435 *
2436 * @return <code>null</code>
2437 * @see Container#isFocusCycleRoot()
2438 * @since 1.4
2439 */
2440 public final Container getFocusCycleRootAncestor() {
2441 return null;
2442 }
2443
2444 /**
2445 * Returns whether this Window can become the focused Window, that is,
2446 * whether this Window or any of its subcomponents can become the focus
2447 * owner. For a Frame or Dialog to be focusable, its focusable Window state
2448 * must be set to <code>true</code>. For a Window which is not a Frame or
2449 * Dialog to be focusable, its focusable Window state must be set to
2450 * <code>true</code>, its nearest owning Frame or Dialog must be
2451 * showing on the screen, and it must contain at least one Component in
2452 * its focus traversal cycle. If any of these conditions is not met, then
2453 * neither this Window nor any of its subcomponents can become the focus
2454 * owner.
2455 *
2456 * @return <code>true</code> if this Window can be the focused Window;
2457 * <code>false</code> otherwise
2458 * @see #getFocusableWindowState
2459 * @see #setFocusableWindowState
2460 * @see #isShowing
2461 * @see Component#isFocusable
2462 * @since 1.4
2463 */
2464 public final boolean isFocusableWindow() {
2465 // If a Window/Frame/Dialog was made non-focusable, then it is always
2466 // non-focusable.
2467 if (!getFocusableWindowState()) {
2468 return false;
2469 }
2470
2471 // All other tests apply only to Windows.
2472 if (this instanceof Frame || this instanceof Dialog) {
2473 return true;
2474 }
2475
2476 // A Window must have at least one Component in its root focus
2477 // traversal cycle to be focusable.
2478 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) {
2479 return false;
2480 }
2481
2482 // A Window's nearest owning Frame or Dialog must be showing on the
2483 // screen.
2484 for (Window owner = getOwner(); owner != null;
2485 owner = owner.getOwner())
2486 {
2487 if (owner instanceof Frame || owner instanceof Dialog) {
2488 return owner.isShowing();
2489 }
2490 }
2491
2492 return false;
2493 }
2494
2495 /**
2496 * Returns whether this Window can become the focused Window if it meets
2497 * the other requirements outlined in <code>isFocusableWindow</code>. If
2498 * this method returns <code>false</code>, then
2499 * <code>isFocusableWindow</code> will return <code>false</code> as well.
2500 * If this method returns <code>true</code>, then
2501 * <code>isFocusableWindow</code> may return <code>true</code> or
2502 * <code>false</code> depending upon the other requirements which must be
2503 * met in order for a Window to be focusable.
2504 * <p>
2505 * By default, all Windows have a focusable Window state of
2506 * <code>true</code>.
2507 *
2508 * @return whether this Window can be the focused Window
2509 * @see #isFocusableWindow
2510 * @see #setFocusableWindowState
2511 * @see #isShowing
2512 * @see Component#setFocusable
2513 * @since 1.4
2514 */
2515 public boolean getFocusableWindowState() {
2516 return focusableWindowState;
2517 }
2518
2519 /**
2520 * Sets whether this Window can become the focused Window if it meets
2521 * the other requirements outlined in <code>isFocusableWindow</code>. If
2522 * this Window's focusable Window state is set to <code>false</code>, then
2523 * <code>isFocusableWindow</code> will return <code>false</code>. If this
2524 * Window's focusable Window state is set to <code>true</code>, then
2525 * <code>isFocusableWindow</code> may return <code>true</code> or
2526 * <code>false</code> depending upon the other requirements which must be
2527 * met in order for a Window to be focusable.
2528 * <p>
2529 * Setting a Window's focusability state to <code>false</code> is the
2530 * standard mechanism for an application to identify to the AWT a Window
2531 * which will be used as a floating palette or toolbar, and thus should be
2532 * a non-focusable Window.
2533 *
2534 * Setting the focusability state on a visible <code>Window</code>
2535 * can have a delayed effect on some platforms — the actual
2536 * change may happen only when the <code>Window</code> becomes
2537 * hidden and then visible again. To ensure consistent behavior
2538 * across platforms, set the <code>Window</code>'s focusable state
2539 * when the <code>Window</code> is invisible and then show it.
2540 *
2541 * @param focusableWindowState whether this Window can be the focused
2542 * Window
2543 * @see #isFocusableWindow
2544 * @see #getFocusableWindowState
2545 * @see #isShowing
2546 * @see Component#setFocusable
2547 * @since 1.4
2548 */
2549 public void setFocusableWindowState(boolean focusableWindowState) {
2550 boolean oldFocusableWindowState;
2551 synchronized (this) {
2552 oldFocusableWindowState = this.focusableWindowState;
2553 this.focusableWindowState = focusableWindowState;
2554 }
2555 WindowPeer peer = (WindowPeer)this.peer;
2556 if (peer != null) {
2557 peer.updateFocusableWindowState();
2558 }
2559 firePropertyChange("focusableWindowState", oldFocusableWindowState,
2560 focusableWindowState);
2561 if (oldFocusableWindowState && !focusableWindowState && isFocused()) {
2562 for (Window owner = getOwner();
2563 owner != null;
2564 owner = owner.getOwner())
2565 {
2566 Component toFocus =
2567 KeyboardFocusManager.getMostRecentFocusOwner(owner);
2568 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) {
2569 return;
2570 }
2571 }
2572 KeyboardFocusManager.getCurrentKeyboardFocusManager().
2573 clearGlobalFocusOwnerPriv();
2574 }
2575 }
2576
2577 /**
2578 * Sets whether this window should receive focus on
2579 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}),
2580 * or being moved to the front (with a call to {@link #toFront}).
2581 * <p>
2582 * Note that {@link #setVisible setVisible(true)} may be called indirectly
2583 * (e.g. when showing an owner of the window makes the window to be shown).
2584 * {@link #toFront} may also be called indirectly (e.g. when
2585 * {@link #setVisible setVisible(true)} is called on already visible window).
2586 * In all such cases this property takes effect as well.
2587 * <p>
2588 * The value of the property is not inherited by owned windows.
2589 *
2590 * @param autoRequestFocus whether this window should be focused on
2591 * subsequently being shown or being moved to the front
2592 * @see #isAutoRequestFocus
2593 * @see #isFocusableWindow
2594 * @see #setVisible
2595 * @see #toFront
2596 * @since 1.7
2597 */
2598 public void setAutoRequestFocus(boolean autoRequestFocus) {
2599 this.autoRequestFocus = autoRequestFocus;
2600 }
2601
2602 /**
2603 * Returns whether this window should receive focus on subsequently being shown
2604 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front
2605 * (with a call to {@link #toFront}).
2606 * <p>
2607 * By default, the window has {@code autoRequestFocus} value of {@code true}.
2608 *
2609 * @return {@code autoRequestFocus} value
2610 * @see #setAutoRequestFocus
2611 * @since 1.7
2612 */
2613 public boolean isAutoRequestFocus() {
2614 return autoRequestFocus;
2615 }
2616
2617 /**
2618 * Adds a PropertyChangeListener to the listener list. The listener is
2619 * registered for all bound properties of this class, including the
2620 * following:
2621 * <ul>
2622 * <li>this Window's font ("font")</li>
2623 * <li>this Window's background color ("background")</li>
2624 * <li>this Window's foreground color ("foreground")</li>
2625 * <li>this Window's focusability ("focusable")</li>
2626 * <li>this Window's focus traversal keys enabled state
2627 * ("focusTraversalKeysEnabled")</li>
2628 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2629 * ("forwardFocusTraversalKeys")</li>
2630 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2631 * ("backwardFocusTraversalKeys")</li>
2632 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2633 * ("upCycleFocusTraversalKeys")</li>
2634 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2635 * ("downCycleFocusTraversalKeys")</li>
2636 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2637 * </li>
2638 * <li>this Window's focusable Window state ("focusableWindowState")
2639 * </li>
2640 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2641 * </ul>
2642 * Note that if this Window is inheriting a bound property, then no
2643 * event will be fired in response to a change in the inherited property.
2644 * <p>
2645 * If listener is null, no exception is thrown and no action is performed.
2646 *
2647 * @param listener the PropertyChangeListener to be added
2648 *
2649 * @see Component#removePropertyChangeListener
2650 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
2651 */
2652 public void addPropertyChangeListener(PropertyChangeListener listener) {
2653 super.addPropertyChangeListener(listener);
2654 }
2655
2656 /**
2657 * Adds a PropertyChangeListener to the listener list for a specific
2658 * property. The specified property may be user-defined, or one of the
2659 * following:
2660 * <ul>
2661 * <li>this Window's font ("font")</li>
2662 * <li>this Window's background color ("background")</li>
2663 * <li>this Window's foreground color ("foreground")</li>
2664 * <li>this Window's focusability ("focusable")</li>
2665 * <li>this Window's focus traversal keys enabled state
2666 * ("focusTraversalKeysEnabled")</li>
2667 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS
2668 * ("forwardFocusTraversalKeys")</li>
2669 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS
2670 * ("backwardFocusTraversalKeys")</li>
2671 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS
2672 * ("upCycleFocusTraversalKeys")</li>
2673 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS
2674 * ("downCycleFocusTraversalKeys")</li>
2675 * <li>this Window's focus traversal policy ("focusTraversalPolicy")
2676 * </li>
2677 * <li>this Window's focusable Window state ("focusableWindowState")
2678 * </li>
2679 * <li>this Window's always-on-top state("alwaysOnTop")</li>
2680 * </ul>
2681 * Note that if this Window is inheriting a bound property, then no
2682 * event will be fired in response to a change in the inherited property.
2683 * <p>
2684 * If listener is null, no exception is thrown and no action is performed.
2685 *
2686 * @param propertyName one of the property names listed above
2687 * @param listener the PropertyChangeListener to be added
2688 *
2689 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener)
2690 * @see Component#removePropertyChangeListener
2691 */
2692 public void addPropertyChangeListener(String propertyName,
2693 PropertyChangeListener listener) {
2694 super.addPropertyChangeListener(propertyName, listener);
2695 }
2696
2697 /**
2698 * Indicates if this container is a validate root.
2699 * <p>
2700 * {@code Window} objects are the validate roots, and, therefore, they
2701 * override this method to return {@code true}.
2702 *
2703 * @return {@code true}
2704 * @since 1.7
2705 * @see java.awt.Container#isValidateRoot
2706 */
2707 @Override
2708 public boolean isValidateRoot() {
2709 return true;
2710 }
2711
2712 /**
2713 * Dispatches an event to this window or one of its sub components.
2714 * @param e the event
2715 */
2716 void dispatchEventImpl(AWTEvent e) {
2717 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) {
2718 invalidate();
2719 validate();
2720 }
2721 super.dispatchEventImpl(e);
2722 }
2723
2724 /**
2725 * @deprecated As of JDK version 1.1
2726 * replaced by <code>dispatchEvent(AWTEvent)</code>.
2727 */
2728 @Deprecated
2729 public boolean postEvent(Event e) {
2730 if (handleEvent(e)) {
2731 e.consume();
2732 return true;
2733 }
2734 return false;
2735 }
2736
2737 /**
2738 * Checks if this Window is showing on screen.
2739 * @see Component#setVisible
2740 */
2741 public boolean isShowing() {
2742 return visible;
2743 }
2744
2745 boolean isDisposing() {
2746 return disposing;
2747 }
2748
2749 /**
2750 * @deprecated As of J2SE 1.4, replaced by
2751 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2752 */
2753 @Deprecated
2754 public void applyResourceBundle(ResourceBundle rb) {
2755 applyComponentOrientation(ComponentOrientation.getOrientation(rb));
2756 }
2757
2758 /**
2759 * @deprecated As of J2SE 1.4, replaced by
2760 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}.
2761 */
2762 @Deprecated
2763 public void applyResourceBundle(String rbName) {
2764 applyResourceBundle(ResourceBundle.getBundle(rbName));
2765 }
2766
2767 /*
2768 * Support for tracking all windows owned by this window
2769 */
2770 void addOwnedWindow(WeakReference<Window> weakWindow) {
2771 if (weakWindow != null) {
2772 synchronized(ownedWindowList) {
2773 // this if statement should really be an assert, but we don't
2774 // have asserts...
2775 if (!ownedWindowList.contains(weakWindow)) {
2776 ownedWindowList.addElement(weakWindow);
2777 }
2778 }
2779 }
2780 }
2781
2782 void removeOwnedWindow(WeakReference<Window> weakWindow) {
2783 if (weakWindow != null) {
2784 // synchronized block not required since removeElement is
2785 // already synchronized
2786 ownedWindowList.removeElement(weakWindow);
2787 }
2788 }
2789
2790 void connectOwnedWindow(Window child) {
2791 child.parent = this;
2792 addOwnedWindow(child.weakThis);
2793 }
2794
2795 private void addToWindowList() {
2796 synchronized (Window.class) {
2797 @SuppressWarnings("unchecked")
2798 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class);
2799 if (windowList == null) {
2800 windowList = new Vector<WeakReference<Window>>();
2801 appContext.put(Window.class, windowList);
2802 }
2803 windowList.add(weakThis);
2804 }
2805 }
2806
2807 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) {
2808 synchronized (Window.class) {
2809 @SuppressWarnings("unchecked")
2810 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class);
2811 if (windowList != null) {
2812 windowList.remove(weakThis);
2813 }
2814 }
2815 }
2816
2817 private void removeFromWindowList() {
2818 removeFromWindowList(appContext, weakThis);
2819 }
2820
2821 /**
2822 * Window type.
2823 *
2824 * Synchronization: ObjectLock
2825 */
2826 private Type type = Type.NORMAL;
2827
2828 /**
2829 * Sets the type of the window.
2830 *
2831 * This method can only be called while the window is not displayable.
2832 *
2833 * @throws IllegalComponentStateException if the window
2834 * is displayable.
2835 * @throws IllegalArgumentException if the type is {@code null}
2836 * @see Component#isDisplayable
2837 * @see #getType
2838 * @since 1.7
2839 */
2840 public void setType(Type type) {
2841 if (type == null) {
2842 throw new IllegalArgumentException("type should not be null.");
2843 }
2844 synchronized (getTreeLock()) {
2845 if (isDisplayable()) {
2846 throw new IllegalComponentStateException(
2847 "The window is displayable.");
2848 }
2849 synchronized (getObjectLock()) {
2850 this.type = type;
2851 }
2852 }
2853 }
2854
2855 /**
2856 * Returns the type of the window.
2857 *
2858 * @see #setType
2859 * @since 1.7
2860 */
2861 public Type getType() {
2862 synchronized (getObjectLock()) {
2863 return type;
2864 }
2865 }
2866
2867 /**
2868 * The window serialized data version.
2869 *
2870 * @serial
2871 */
2872 private int windowSerializedDataVersion = 2;
2873
2874 /**
2875 * Writes default serializable fields to stream. Writes
2876 * a list of serializable <code>WindowListener</code>s and
2877 * <code>WindowFocusListener</code>s as optional data.
2878 * Writes a list of child windows as optional data.
2879 * Writes a list of icon images as optional data
2880 *
2881 * @param s the <code>ObjectOutputStream</code> to write
2882 * @serialData <code>null</code> terminated sequence of
2883 * 0 or more pairs; the pair consists of a <code>String</code>
2884 * and and <code>Object</code>; the <code>String</code>
2885 * indicates the type of object and is one of the following:
2886 * <code>windowListenerK</code> indicating a
2887 * <code>WindowListener</code> object;
2888 * <code>windowFocusWindowK</code> indicating a
2889 * <code>WindowFocusListener</code> object;
2890 * <code>ownedWindowK</code> indicating a child
2891 * <code>Window</code> object
2892 *
2893 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
2894 * @see Component#windowListenerK
2895 * @see Component#windowFocusListenerK
2896 * @see Component#ownedWindowK
2897 * @see #readObject(ObjectInputStream)
2898 */
2899 private void writeObject(ObjectOutputStream s) throws IOException {
2900 synchronized (this) {
2901 // Update old focusMgr fields so that our object stream can be read
2902 // by previous releases
2903 focusMgr = new FocusManager();
2904 focusMgr.focusRoot = this;
2905 focusMgr.focusOwner = getMostRecentFocusOwner();
2906
2907 s.defaultWriteObject();
2908
2909 // Clear fields so that we don't keep extra references around
2910 focusMgr = null;
2911
2912 AWTEventMulticaster.save(s, windowListenerK, windowListener);
2913 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener);
2914 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener);
2915 }
2916
2917 s.writeObject(null);
2918
2919 synchronized (ownedWindowList) {
2920 for (int i = 0; i < ownedWindowList.size(); i++) {
2921 Window child = ownedWindowList.elementAt(i).get();
2922 if (child != null) {
2923 s.writeObject(ownedWindowK);
2924 s.writeObject(child);
2925 }
2926 }
2927 }
2928 s.writeObject(null);
2929
2930 //write icon array
2931 if (icons != null) {
2932 for (Image i : icons) {
2933 if (i instanceof Serializable) {
2934 s.writeObject(i);
2935 }
2936 }
2937 }
2938 s.writeObject(null);
2939 }
2940
2941 //
2942 // Part of deserialization procedure to be called before
2943 // user's code.
2944 //
2945 private void initDeserializedWindow() {
2946 setWarningString();
2947 inputContextLock = new Object();
2948
2949 // Deserialized Windows are not yet visible.
2950 visible = false;
2951
2952 weakThis = new WeakReference<>(this);
2953
2954 anchor = new Object();
2955 sun.java2d.Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this));
2956
2957 addToWindowList();
2958 initGC(null);
2959 }
2960
2961 private void deserializeResources(ObjectInputStream s)
2962 throws ClassNotFoundException, IOException, HeadlessException {
2963 ownedWindowList = new Vector<>();
2964
2965 if (windowSerializedDataVersion < 2) {
2966 // Translate old-style focus tracking to new model. For 1.4 and
2967 // later releases, we'll rely on the Window's initial focusable
2968 // Component.
2969 if (focusMgr != null) {
2970 if (focusMgr.focusOwner != null) {
2971 KeyboardFocusManager.
2972 setMostRecentFocusOwner(this, focusMgr.focusOwner);
2973 }
2974 }
2975
2976 // This field is non-transient and relies on default serialization.
2977 // However, the default value is insufficient, so we need to set
2978 // it explicitly for object data streams prior to 1.4.
2979 focusableWindowState = true;
2980
2981
2982 }
2983
2984 Object keyOrNull;
2985 while(null != (keyOrNull = s.readObject())) {
2986 String key = ((String)keyOrNull).intern();
2987
2988 if (windowListenerK == key) {
2989 addWindowListener((WindowListener)(s.readObject()));
2990 } else if (windowFocusListenerK == key) {
2991 addWindowFocusListener((WindowFocusListener)(s.readObject()));
2992 } else if (windowStateListenerK == key) {
2993 addWindowStateListener((WindowStateListener)(s.readObject()));
2994 } else // skip value for unrecognized key
2995 s.readObject();
2996 }
2997
2998 try {
2999 while (null != (keyOrNull = s.readObject())) {
3000 String key = ((String)keyOrNull).intern();
3001
3002 if (ownedWindowK == key)
3003 connectOwnedWindow((Window) s.readObject());
3004
3005 else // skip value for unrecognized key
3006 s.readObject();
3007 }
3008
3009 //read icons
3010 Object obj = s.readObject(); //Throws OptionalDataException
3011 //for pre1.6 objects.
3012 icons = new ArrayList<Image>(); //Frame.readObject() assumes
3013 //pre1.6 version if icons is null.
3014 while (obj != null) {
3015 if (obj instanceof Image) {
3016 icons.add((Image)obj);
3017 }
3018 obj = s.readObject();
3019 }
3020 }
3021 catch (OptionalDataException e) {
3022 // 1.1 serialized form
3023 // ownedWindowList will be updated by Frame.readObject
3024 }
3025
3026 }
3027
3028 /**
3029 * Reads the <code>ObjectInputStream</code> and an optional
3030 * list of listeners to receive various events fired by
3031 * the component; also reads a list of
3032 * (possibly <code>null</code>) child windows.
3033 * Unrecognized keys or values will be ignored.
3034 *
3035 * @param s the <code>ObjectInputStream</code> to read
3036 * @exception HeadlessException if
3037 * <code>GraphicsEnvironment.isHeadless</code> returns
3038 * <code>true</code>
3039 * @see java.awt.GraphicsEnvironment#isHeadless
3040 * @see #writeObject
3041 */
3042 private void readObject(ObjectInputStream s)
3043 throws ClassNotFoundException, IOException, HeadlessException
3044 {
3045 GraphicsEnvironment.checkHeadless();
3046 initDeserializedWindow();
3047 ObjectInputStream.GetField f = s.readFields();
3048
3049 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests);
3050 state = f.get("state", 0);
3051 focusableWindowState = f.get("focusableWindowState", true);
3052 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1);
3053 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp);
3054 // Note: 1.4 (or later) doesn't use focusMgr
3055 focusMgr = (FocusManager)f.get("focusMgr", null);
3056 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType)
3057 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE);
3058 setModalExclusionType(et); // since 6.0
3059 boolean aot = f.get("alwaysOnTop", false);
3060 if(aot) {
3061 setAlwaysOnTop(aot); // since 1.5; subject to permission check
3062 }
3063 shape = (Shape)f.get("shape", null);
3064 opacity = (Float)f.get("opacity", 1.0f);
3065
3066 this.securityWarningWidth = 0;
3067 this.securityWarningHeight = 0;
3068 this.securityWarningPointX = 2.0;
3069 this.securityWarningPointY = 0.0;
3070 this.securityWarningAlignmentX = RIGHT_ALIGNMENT;
3071 this.securityWarningAlignmentY = TOP_ALIGNMENT;
3072
3073 deserializeResources(s);
3074 }
3075
3076 /*
3077 * --- Accessibility Support ---
3078 *
3079 */
3080
3081 /**
3082 * Gets the AccessibleContext associated with this Window.
3083 * For windows, the AccessibleContext takes the form of an
3084 * AccessibleAWTWindow.
3085 * A new AccessibleAWTWindow instance is created if necessary.
3086 *
3087 * @return an AccessibleAWTWindow that serves as the
3088 * AccessibleContext of this Window
3089 * @since 1.3
3090 */
3091 public AccessibleContext getAccessibleContext() {
3092 if (accessibleContext == null) {
3093 accessibleContext = new AccessibleAWTWindow();
3094 }
3095 return accessibleContext;
3096 }
3097
3098 /**
3099 * This class implements accessibility support for the
3100 * <code>Window</code> class. It provides an implementation of the
3101 * Java Accessibility API appropriate to window user-interface elements.
3102 * @since 1.3
3103 */
3104 protected class AccessibleAWTWindow extends AccessibleAWTContainer
3105 {
3106 /*
3107 * JDK 1.3 serialVersionUID
3108 */
3109 private static final long serialVersionUID = 4215068635060671780L;
3110
3111 /**
3112 * Get the role of this object.
3113 *
3114 * @return an instance of AccessibleRole describing the role of the
3115 * object
3116 * @see javax.accessibility.AccessibleRole
3117 */
3118 public AccessibleRole getAccessibleRole() {
3119 return AccessibleRole.WINDOW;
3120 }
3121
3122 /**
3123 * Get the state of this object.
3124 *
3125 * @return an instance of AccessibleStateSet containing the current
3126 * state set of the object
3127 * @see javax.accessibility.AccessibleState
3128 */
3129 public AccessibleStateSet getAccessibleStateSet() {
3130 AccessibleStateSet states = super.getAccessibleStateSet();
3131 if (getFocusOwner() != null) {
3132 states.add(AccessibleState.ACTIVE);
3133 }
3134 return states;
3135 }
3136
3137 } // inner class AccessibleAWTWindow
3138
3139 @Override
3140 void setGraphicsConfiguration(GraphicsConfiguration gc) {
3141 if (gc == null) {
3142 gc = GraphicsEnvironment.
3143 getLocalGraphicsEnvironment().
3144 getDefaultScreenDevice().
3145 getDefaultConfiguration();
3146 }
3147 synchronized (getTreeLock()) {
3148 super.setGraphicsConfiguration(gc);
3149 if (log.isLoggable(PlatformLogger.FINER)) {
3150 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this);
3151 }
3152 }
3153 }
3154
3155 /**
3156 * Sets the location of the window relative to the specified
3157 * component according to the following scenarios.
3158 * <p>
3159 * The target screen mentioned below is a screen to which
3160 * the window should be placed after the setLocationRelativeTo
3161 * method is called.
3162 * <ul>
3163 * <li>If the component is {@code null}, or the {@code
3164 * GraphicsConfiguration} associated with this component is
3165 * {@code null}, the window is placed in the center of the
3166 * screen. The center point can be obtained with the {@link
3167 * GraphicsEnvironment#getCenterPoint
3168 * GraphicsEnvironment.getCenterPoint} method.
3169 * <li>If the component is not {@code null}, but it is not
3170 * currently showing, the window is placed in the center of
3171 * the target screen defined by the {@code
3172 * GraphicsConfiguration} associated with this component.
3173 * <li>If the component is not {@code null} and is shown on
3174 * the screen, then the window is located in such a way that
3175 * the center of the window coincides with the center of the
3176 * component.
3177 * </ul>
3178 * <p>
3179 * If the screens configuration does not allow the window to
3180 * be moved from one screen to another, then the window is
3181 * only placed at the location determined according to the
3182 * above conditions and its {@code GraphicsConfiguration} is
3183 * not changed.
3184 * <p>
3185 * <b>Note</b>: If the lower edge of the window is out of the screen,
3186 * then the window is placed to the side of the <code>Component</code>
3187 * that is closest to the center of the screen. So if the
3188 * component is on the right part of the screen, the window
3189 * is placed to its left, and vice versa.
3190 * <p>
3191 * If after the window location has been calculated, the upper,
3192 * left, or right edge of the window is out of the screen,
3193 * then the window is located in such a way that the upper,
3194 * left, or right edge of the window coincides with the
3195 * corresponding edge of the screen. If both left and right
3196 * edges of the window are out of the screen, the window is
3197 * placed at the left side of the screen. The similar placement
3198 * will occur if both top and bottom edges are out of the screen.
3199 * In that case, the window is placed at the top side of the screen.
3200 * <p>
3201 * The method changes the geometry-related data. Therefore,
3202 * the native windowing system may ignore such requests, or it may modify
3203 * the requested data, so that the {@code Window} object is placed and sized
3204 * in a way that corresponds closely to the desktop settings.
3205 *
3206 * @param c the component in relation to which the window's location
3207 * is determined
3208 * @see java.awt.GraphicsEnvironment#getCenterPoint
3209 * @since 1.4
3210 */
3211 public void setLocationRelativeTo(Component c) {
3212 // target location
3213 int dx = 0, dy = 0;
3214 // target GC
3215 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
3216 Rectangle gcBounds = gc.getBounds();
3217
3218 Dimension windowSize = getSize();
3219
3220 // search a top-level of c
3221 Window componentWindow = SunToolkit.getContainingWindow(c);
3222 if ((c == null) || (componentWindow == null)) {
3223 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
3224 gc = ge.getDefaultScreenDevice().getDefaultConfiguration();
3225 gcBounds = gc.getBounds();
3226 Point centerPoint = ge.getCenterPoint();
3227 dx = centerPoint.x - windowSize.width / 2;
3228 dy = centerPoint.y - windowSize.height / 2;
3229 } else if (!c.isShowing()) {
3230 gc = componentWindow.getGraphicsConfiguration();
3231 gcBounds = gc.getBounds();
3232 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2;
3233 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2;
3234 } else {
3235 gc = componentWindow.getGraphicsConfiguration();
3236 gcBounds = gc.getBounds();
3237 Dimension compSize = c.getSize();
3238 Point compLocation = c.getLocationOnScreen();
3239 dx = compLocation.x + ((compSize.width - windowSize.width) / 2);
3240 dy = compLocation.y + ((compSize.height - windowSize.height) / 2);
3241
3242 // Adjust for bottom edge being offscreen
3243 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3244 dy = gcBounds.y + gcBounds.height - windowSize.height;
3245 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) {
3246 dx = compLocation.x + compSize.width;
3247 } else {
3248 dx = compLocation.x - windowSize.width;
3249 }
3250 }
3251 }
3252
3253 // Avoid being placed off the edge of the screen:
3254 // bottom
3255 if (dy + windowSize.height > gcBounds.y + gcBounds.height) {
3256 dy = gcBounds.y + gcBounds.height - windowSize.height;
3257 }
3258 // top
3259 if (dy < gcBounds.y) {
3260 dy = gcBounds.y;
3261 }
3262 // right
3263 if (dx + windowSize.width > gcBounds.x + gcBounds.width) {
3264 dx = gcBounds.x + gcBounds.width - windowSize.width;
3265 }
3266 // left
3267 if (dx < gcBounds.x) {
3268 dx = gcBounds.x;
3269 }
3270
3271 setLocation(dx, dy);
3272 }
3273
3274 /**
3275 * Overridden from Component. Top-level Windows should not propagate a
3276 * MouseWheelEvent beyond themselves into their owning Windows.
3277 */
3278 void deliverMouseWheelToAncestor(MouseWheelEvent e) {}
3279
3280 /**
3281 * Overridden from Component. Top-level Windows don't dispatch to ancestors
3282 */
3283 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;}
3284
3285 /**
3286 * Creates a new strategy for multi-buffering on this component.
3287 * Multi-buffering is useful for rendering performance. This method
3288 * attempts to create the best strategy available with the number of
3289 * buffers supplied. It will always create a <code>BufferStrategy</code>
3290 * with that number of buffers.
3291 * A page-flipping strategy is attempted first, then a blitting strategy
3292 * using accelerated buffers. Finally, an unaccelerated blitting
3293 * strategy is used.
3294 * <p>
3295 * Each time this method is called,
3296 * the existing buffer strategy for this component is discarded.
3297 * @param numBuffers number of buffers to create
3298 * @exception IllegalArgumentException if numBuffers is less than 1.
3299 * @exception IllegalStateException if the component is not displayable
3300 * @see #isDisplayable
3301 * @see #getBufferStrategy
3302 * @since 1.4
3303 */
3304 public void createBufferStrategy(int numBuffers) {
3305 super.createBufferStrategy(numBuffers);
3306 }
3307
3308 /**
3309 * Creates a new strategy for multi-buffering on this component with the
3310 * required buffer capabilities. This is useful, for example, if only
3311 * accelerated memory or page flipping is desired (as specified by the
3312 * buffer capabilities).
3313 * <p>
3314 * Each time this method
3315 * is called, the existing buffer strategy for this component is discarded.
3316 * @param numBuffers number of buffers to create, including the front buffer
3317 * @param caps the required capabilities for creating the buffer strategy;
3318 * cannot be <code>null</code>
3319 * @exception AWTException if the capabilities supplied could not be
3320 * supported or met; this may happen, for example, if there is not enough
3321 * accelerated memory currently available, or if page flipping is specified
3322 * but not possible.
3323 * @exception IllegalArgumentException if numBuffers is less than 1, or if
3324 * caps is <code>null</code>
3325 * @see #getBufferStrategy
3326 * @since 1.4
3327 */
3328 public void createBufferStrategy(int numBuffers,
3329 BufferCapabilities caps) throws AWTException {
3330 super.createBufferStrategy(numBuffers, caps);
3331 }
3332
3333 /**
3334 * Returns the <code>BufferStrategy</code> used by this component. This
3335 * method will return null if a <code>BufferStrategy</code> has not yet
3336 * been created or has been disposed.
3337 *
3338 * @return the buffer strategy used by this component
3339 * @see #createBufferStrategy
3340 * @since 1.4
3341 */
3342 public BufferStrategy getBufferStrategy() {
3343 return super.getBufferStrategy();
3344 }
3345
3346 Component getTemporaryLostComponent() {
3347 return temporaryLostComponent;
3348 }
3349 Component setTemporaryLostComponent(Component component) {
3350 Component previousComp = temporaryLostComponent;
3351 // Check that "component" is an acceptable focus owner and don't store it otherwise
3352 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS
3353 if (component == null || component.canBeFocusOwner()) {
3354 temporaryLostComponent = component;
3355 } else {
3356 temporaryLostComponent = null;
3357 }
3358 return previousComp;
3359 }
3360
3361 /**
3362 * Checks whether this window can contain focus owner.
3363 * Verifies that it is focusable and as container it can container focus owner.
3364 * @since 1.5
3365 */
3366 boolean canContainFocusOwner(Component focusOwnerCandidate) {
3367 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow();
3368 }
3369
3370 private boolean locationByPlatform = locationByPlatformProp;
3371
3372
3373 /**
3374 * Sets whether this Window should appear at the default location for the
3375 * native windowing system or at the current location (returned by
3376 * <code>getLocation</code>) the next time the Window is made visible.
3377 * This behavior resembles a native window shown without programmatically
3378 * setting its location. Most windowing systems cascade windows if their
3379 * locations are not explicitly set. The actual location is determined once the
3380 * window is shown on the screen.
3381 * <p>
3382 * This behavior can also be enabled by setting the System Property
3383 * "java.awt.Window.locationByPlatform" to "true", though calls to this method
3384 * take precedence.
3385 * <p>
3386 * Calls to <code>setVisible</code>, <code>setLocation</code> and
3387 * <code>setBounds</code> after calling <code>setLocationByPlatform</code> clear
3388 * this property of the Window.
3389 * <p>
3390 * For example, after the following code is executed:
3391 * <pre><blockquote>
3392 * setLocationByPlatform(true);
3393 * setVisible(true);
3394 * boolean flag = isLocationByPlatform();
3395 * </blockquote></pre>
3396 * The window will be shown at platform's default location and
3397 * <code>flag</code> will be <code>false</code>.
3398 * <p>
3399 * In the following sample:
3400 * <pre><blockquote>
3401 * setLocationByPlatform(true);
3402 * setLocation(10, 10);
3403 * boolean flag = isLocationByPlatform();
3404 * setVisible(true);
3405 * </blockquote></pre>
3406 * The window will be shown at (10, 10) and <code>flag</code> will be
3407 * <code>false</code>.
3408 *
3409 * @param locationByPlatform <code>true</code> if this Window should appear
3410 * at the default location, <code>false</code> if at the current location
3411 * @throws <code>IllegalComponentStateException</code> if the window
3412 * is showing on screen and locationByPlatform is <code>true</code>.
3413 * @see #setLocation
3414 * @see #isShowing
3415 * @see #setVisible
3416 * @see #isLocationByPlatform
3417 * @see java.lang.System#getProperty(String)
3418 * @since 1.5
3419 */
3420 public void setLocationByPlatform(boolean locationByPlatform) {
3421 synchronized (getTreeLock()) {
3422 if (locationByPlatform && isShowing()) {
3423 throw new IllegalComponentStateException("The window is showing on screen.");
3424 }
3425 this.locationByPlatform = locationByPlatform;
3426 }
3427 }
3428
3429 /**
3430 * Returns <code>true</code> if this Window will appear at the default location
3431 * for the native windowing system the next time this Window is made visible.
3432 * This method always returns <code>false</code> if the Window is showing on the
3433 * screen.
3434 *
3435 * @return whether this Window will appear at the default location
3436 * @see #setLocationByPlatform
3437 * @see #isShowing
3438 * @since 1.5
3439 */
3440 public boolean isLocationByPlatform() {
3441 synchronized (getTreeLock()) {
3442 return locationByPlatform;
3443 }
3444 }
3445
3446 /**
3447 * {@inheritDoc}
3448 * <p>
3449 * The {@code width} or {@code height} values
3450 * are automatically enlarged if either is less than
3451 * the minimum size as specified by previous call to
3452 * {@code setMinimumSize}.
3453 * <p>
3454 * The method changes the geometry-related data. Therefore,
3455 * the native windowing system may ignore such requests, or it may modify
3456 * the requested data, so that the {@code Window} object is placed and sized
3457 * in a way that corresponds closely to the desktop settings.
3458 *
3459 * @see #getBounds
3460 * @see #setLocation(int, int)
3461 * @see #setLocation(Point)
3462 * @see #setSize(int, int)
3463 * @see #setSize(Dimension)
3464 * @see #setMinimumSize
3465 * @see #setLocationByPlatform
3466 * @see #isLocationByPlatform
3467 * @since 1.6
3468 */
3469 public void setBounds(int x, int y, int width, int height) {
3470 synchronized (getTreeLock()) {
3471 if (getBoundsOp() == ComponentPeer.SET_LOCATION ||
3472 getBoundsOp() == ComponentPeer.SET_BOUNDS)
3473 {
3474 locationByPlatform = false;
3475 }
3476 super.setBounds(x, y, width, height);
3477 }
3478 }
3479
3480 /**
3481 * {@inheritDoc}
3482 * <p>
3483 * The {@code r.width} or {@code r.height} values
3484 * will be automatically enlarged if either is less than
3485 * the minimum size as specified by previous call to
3486 * {@code setMinimumSize}.
3487 * <p>
3488 * The method changes the geometry-related data. Therefore,
3489 * the native windowing system may ignore such requests, or it may modify
3490 * the requested data, so that the {@code Window} object is placed and sized
3491 * in a way that corresponds closely to the desktop settings.
3492 *
3493 * @see #getBounds
3494 * @see #setLocation(int, int)
3495 * @see #setLocation(Point)
3496 * @see #setSize(int, int)
3497 * @see #setSize(Dimension)
3498 * @see #setMinimumSize
3499 * @see #setLocationByPlatform
3500 * @see #isLocationByPlatform
3501 * @since 1.6
3502 */
3503 public void setBounds(Rectangle r) {
3504 setBounds(r.x, r.y, r.width, r.height);
3505 }
3506
3507 /**
3508 * Determines whether this component will be displayed on the screen.
3509 * @return <code>true</code> if the component and all of its ancestors
3510 * until a toplevel window are visible, <code>false</code> otherwise
3511 */
3512 boolean isRecursivelyVisible() {
3513 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible.
3514 // We're overriding isRecursivelyVisible to implement this policy.
3515 return visible;
3516 }
3517
3518
3519 // ******************** SHAPES & TRANSPARENCY CODE ********************
3520
3521 /**
3522 * Returns the opacity of the window.
3523 *
3524 * @return the opacity of the window
3525 *
3526 * @see Window#setOpacity(float)
3527 * @see GraphicsDevice.WindowTranslucency
3528 *
3529 * @since 1.7
3530 */
3531 public float getOpacity() {
3532 synchronized (getTreeLock()) {
3533 return opacity;
3534 }
3535 }
3536
3537 /**
3538 * Sets the opacity of the window.
3539 * <p>
3540 * The opacity value is in the range [0..1]. Note that setting the opacity
3541 * level of 0 may or may not disable the mouse event handling on this
3542 * window. This is a platform-dependent behavior.
3543 * <p>
3544 * The following conditions must be met in order to set the opacity value
3545 * less than {@code 1.0f}:
3546 * <ul>
3547 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3548 * translucency must be supported by the underlying system
3549 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3550 * and {@link Dialog#setUndecorated})
3551 * <li>The window must not be in full-screen mode (see {@link
3552 * GraphicsDevice#setFullScreenWindow(Window)})
3553 * </ul>
3554 * <p>
3555 * If the requested opacity value is less than {@code 1.0f}, and any of the
3556 * above conditions are not met, the window opacity will not change,
3557 * and the {@code IllegalComponentStateException} will be thrown.
3558 * <p>
3559 * The translucency levels of individual pixels may also be effected by the
3560 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3561 * current shape of this window (see {@link #setShape(Shape)}).
3562 *
3563 * @param opacity the opacity level to set to the window
3564 *
3565 * @throws IllegalArgumentException if the opacity is out of the range
3566 * [0..1]
3567 * @throws IllegalComponentStateException if the window is decorated and
3568 * the opacity is less than {@code 1.0f}
3569 * @throws IllegalComponentStateException if the window is in full screen
3570 * mode, and the opacity is less than {@code 1.0f}
3571 * @throws UnsupportedOperationException if the {@code
3572 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT}
3573 * translucency is not supported and the opacity is less than
3574 * {@code 1.0f}
3575 *
3576 * @see Window#getOpacity
3577 * @see Window#setBackground(Color)
3578 * @see Window#setShape(Shape)
3579 * @see Frame#isUndecorated
3580 * @see Dialog#isUndecorated
3581 * @see GraphicsDevice.WindowTranslucency
3582 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3583 *
3584 * @since 1.7
3585 */
3586 public void setOpacity(float opacity) {
3587 synchronized (getTreeLock()) {
3588 if (opacity < 0.0f || opacity > 1.0f) {
3589 throw new IllegalArgumentException(
3590 "The value of opacity should be in the range [0.0f .. 1.0f].");
3591 }
3592 if (opacity < 1.0f) {
3593 GraphicsConfiguration gc = getGraphicsConfiguration();
3594 GraphicsDevice gd = gc.getDevice();
3595 if (gc.getDevice().getFullScreenWindow() == this) {
3596 throw new IllegalComponentStateException(
3597 "Setting opacity for full-screen window is not supported.");
3598 }
3599 if (!gd.isWindowTranslucencySupported(
3600 GraphicsDevice.WindowTranslucency.TRANSLUCENT))
3601 {
3602 throw new UnsupportedOperationException(
3603 "TRANSLUCENT translucency is not supported.");
3604 }
3605 }
3606 this.opacity = opacity;
3607 WindowPeer windowPeer = (WindowPeer)peer;
3608 if (windowPeer != null) {
3609 windowPeer.setOpacity(opacity);
3610 }
3611 }
3612 }
3613
3614 /**
3615 * Returns the shape of the window.
3616 *
3617 * The value returned by this method may not be the same as
3618 * previously set with {@code setShape(shape)}, but it is guaranteed
3619 * to represent the same shape.
3620 *
3621 * @return the shape of the window or {@code null} if no
3622 * shape is specified for the window
3623 *
3624 * @see Window#setShape(Shape)
3625 * @see GraphicsDevice.WindowTranslucency
3626 *
3627 * @since 1.7
3628 */
3629 public Shape getShape() {
3630 synchronized (getTreeLock()) {
3631 return shape == null ? null : new Path2D.Float(shape);
3632 }
3633 }
3634
3635 /**
3636 * Sets the shape of the window.
3637 * <p>
3638 * Setting a shape cuts off some parts of the window. Only the parts that
3639 * belong to the given {@link Shape} remain visible and clickable. If
3640 * the shape argument is {@code null}, this method restores the default
3641 * shape, making the window rectangular on most platforms.
3642 * <p>
3643 * The following conditions must be met to set a non-null shape:
3644 * <ul>
3645 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3646 * PERPIXEL_TRANSPARENT} translucency must be supported by the
3647 * underlying system
3648 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3649 * and {@link Dialog#setUndecorated})
3650 * <li>The window must not be in full-screen mode (see {@link
3651 * GraphicsDevice#setFullScreenWindow(Window)})
3652 * </ul>
3653 * <p>
3654 * If the requested shape is not {@code null}, and any of the above
3655 * conditions are not met, the shape of this window will not change,
3656 * and either the {@code UnsupportedOperationException} or {@code
3657 * IllegalComponentStateException} will be thrown.
3658 * <p>
3659 * The tranlucency levels of individual pixels may also be effected by the
3660 * alpha component of their color (see {@link Window#setBackground(Color)}) and the
3661 * opacity value (see {@link #setOpacity(float)}). See {@link
3662 * GraphicsDevice.WindowTranslucency} for more details.
3663 *
3664 * @param shape the shape to set to the window
3665 *
3666 * @throws IllegalComponentStateException if the shape is not {@code
3667 * null} and the window is decorated
3668 * @throws IllegalComponentStateException if the shape is not {@code
3669 * null} and the window is in full-screen mode
3670 * @throws UnsupportedOperationException if the shape is not {@code
3671 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT
3672 * PERPIXEL_TRANSPARENT} translucency is not supported
3673 *
3674 * @see Window#getShape()
3675 * @see Window#setBackground(Color)
3676 * @see Window#setOpacity(float)
3677 * @see Frame#isUndecorated
3678 * @see Dialog#isUndecorated
3679 * @see GraphicsDevice.WindowTranslucency
3680 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3681 *
3682 * @since 1.7
3683 */
3684 public void setShape(Shape shape) {
3685 synchronized (getTreeLock()) {
3686 if (shape != null) {
3687 GraphicsConfiguration gc = getGraphicsConfiguration();
3688 GraphicsDevice gd = gc.getDevice();
3689 if (gc.getDevice().getFullScreenWindow() == this) {
3690 throw new IllegalComponentStateException(
3691 "Setting shape for full-screen window is not supported.");
3692 }
3693 if (!gd.isWindowTranslucencySupported(
3694 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT))
3695 {
3696 throw new UnsupportedOperationException(
3697 "PERPIXEL_TRANSPARENT translucency is not supported.");
3698 }
3699 }
3700 this.shape = (shape == null) ? null : new Path2D.Float(shape);
3701 WindowPeer windowPeer = (WindowPeer)peer;
3702 if (windowPeer != null) {
3703 windowPeer.applyShape(shape == null ? null : Region.getInstance(shape, null));
3704 }
3705 }
3706 }
3707
3708 /**
3709 * Gets the background color of this window.
3710 * <p>
3711 * Note that the alpha component of the returned color indicates whether
3712 * the window is in the non-opaque (per-pixel translucent) mode.
3713 *
3714 * @return this component's background color
3715 *
3716 * @see Window#setBackground(Color)
3717 * @see Window#isOpaque
3718 * @see GraphicsDevice.WindowTranslucency
3719 */
3720 @Override
3721 public Color getBackground() {
3722 return super.getBackground();
3723 }
3724
3725 /**
3726 * Sets the background color of this window.
3727 * <p>
3728 * If the windowing system supports the {@link
3729 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT}
3730 * tranclucency, the alpha component of the given background color
3731 * may effect the mode of operation for this window: it indicates whether
3732 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent
3733 * (alpha is less than {@code 1.0f}). If the given background color is
3734 * {@code null}, the window is considered completely opaque.
3735 * <p>
3736 * All the following conditions must be met to enable the per-pixel
3737 * transparency mode for this window:
3738 * <ul>
3739 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3740 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics
3741 * device where this window is located
3742 * <li>The window must be undecorated (see {@link Frame#setUndecorated}
3743 * and {@link Dialog#setUndecorated})
3744 * <li>The window must not be in full-screen mode (see {@link
3745 * GraphicsDevice#setFullScreenWindow(Window)})
3746 * </ul>
3747 * <p>
3748 * If the alpha component of the requested background color is less than
3749 * {@code 1.0f}, and any of the above conditions are not met, the background
3750 * color of this window will not change, the alpha component of the given
3751 * background color will not affect the mode of operation for this window,
3752 * and either the {@code UnsupportedOperationException} or {@code
3753 * IllegalComponentStateException} will be thrown.
3754 * <p>
3755 * When the window is per-pixel translucent, the drawing sub-system
3756 * respects the alpha value of each individual pixel. If a pixel gets
3757 * painted with the alpha color component equal to zero, it becomes
3758 * visually transparent. If the alpha of the pixel is equal to 1.0f, the
3759 * pixel is fully opaque. Interim values of the alpha color component make
3760 * the pixel semi-transparent. In this mode, the background of the window
3761 * gets painted with the alpha value of the given background color. If the
3762 * alpha value of the argument of this method is equal to {@code 0}, the
3763 * background is not painted at all.
3764 * <p>
3765 * The actual level of translucency of a given pixel also depends on window
3766 * opacity (see {@link #setOpacity(float)}), as well as the current shape of
3767 * this window (see {@link #setShape(Shape)}).
3768 * <p>
3769 * Note that painting a pixel with the alpha value of {@code 0} may or may
3770 * not disable the mouse event handling on this pixel. This is a
3771 * platform-dependent behavior. To make sure the mouse events do not get
3772 * dispatched to a particular pixel, the pixel must be excluded from the
3773 * shape of the window.
3774 * <p>
3775 * Enabling the per-pixel translucency mode may change the graphics
3776 * configuration of this window due to the native platform requirements.
3777 *
3778 * @param bgColor the color to become this window's background color.
3779 *
3780 * @throws IllegalComponentStateException if the alpha value of the given
3781 * background color is less than {@code 1.0f} and the window is decorated
3782 * @throws IllegalComponentStateException if the alpha value of the given
3783 * background color is less than {@code 1.0f} and the window is in
3784 * full-screen mode
3785 * @throws UnsupportedOperationException if the alpha value of the given
3786 * background color is less than {@code 1.0f} and {@link
3787 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT
3788 * PERPIXEL_TRANSLUCENT} translucency is not supported
3789 *
3790 * @see Window#getBackground
3791 * @see Window#isOpaque
3792 * @see Window#setOpacity(float)
3793 * @see Window#setShape(Shape)
3794 * @see Frame#isUndecorated
3795 * @see Dialog#isUndecorated
3796 * @see GraphicsDevice.WindowTranslucency
3797 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency)
3798 * @see GraphicsConfiguration#isTranslucencyCapable()
3799 */
3800 @Override
3801 public void setBackground(Color bgColor) {
3802 Color oldBg = getBackground();
3803 super.setBackground(bgColor);
3804 if (oldBg != null && oldBg.equals(bgColor)) {
3805 return;
3806 }
3807 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255;
3808 int alpha = bgColor != null ? bgColor.getAlpha() : 255;
3809 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window
3810 GraphicsConfiguration gc = getGraphicsConfiguration();
3811 GraphicsDevice gd = gc.getDevice();
3812 if (gc.getDevice().getFullScreenWindow() == this) {
3813 throw new IllegalComponentStateException(
3814 "Making full-screen window non opaque is not supported.");
3815 }
3816 if (!gc.isTranslucencyCapable()) {
3817 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC();
3818 if (capableGC == null) {
3819 throw new UnsupportedOperationException(
3820 "PERPIXEL_TRANSLUCENT translucency is not supported");
3821 }
3822 setGraphicsConfiguration(capableGC);
3823 }
3824 setLayersOpaque(this, false);
3825 } else if ((oldAlpha < 255) && (alpha == 255)) {
3826 setLayersOpaque(this, true);
3827 }
3828 WindowPeer windowPeer = (WindowPeer)peer;
3829 if (windowPeer != null) {
3830 windowPeer.setOpaque(alpha == 255);
3831 }
3832 }
3833
3834 /**
3835 * Indicates if the window is currently opaque.
3836 * <p>
3837 * The method returns {@code false} if the background color of the window
3838 * is not {@code null} and the alpha component of the color is less than
3839 * {@code 1.0f}. The method returns {@code true} otherwise.
3840 *
3841 * @return {@code true} if the window is opaque, {@code false} otherwise
3842 *
3843 * @see Window#getBackground
3844 * @see Window#setBackground(Color)
3845 * @since 1.7
3846 */
3847 @Override
3848 public boolean isOpaque() {
3849 Color bg = getBackground();
3850 return bg != null ? bg.getAlpha() == 255 : true;
3851 }
3852
3853 private void updateWindow() {
3854 synchronized (getTreeLock()) {
3855 WindowPeer windowPeer = (WindowPeer)peer;
3856 if (windowPeer != null) {
3857 windowPeer.updateWindow();
3858 }
3859 }
3860 }
3861
3862 /**
3863 * {@inheritDoc}
3864 *
3865 * @since 1.7
3866 */
3867 @Override
3868 public void paint(Graphics g) {
3869 if (!isOpaque()) {
3870 Graphics gg = g.create();
3871 try {
3872 if (gg instanceof Graphics2D) {
3873 gg.setColor(getBackground());
3874 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC));
3875 gg.fillRect(0, 0, getWidth(), getHeight());
3876 }
3877 } finally {
3878 gg.dispose();
3879 }
3880 }
3881 super.paint(g);
3882 }
3883
3884 private static void setLayersOpaque(Component component, boolean isOpaque) {
3885 // Shouldn't use instanceof to avoid loading Swing classes
3886 // if it's a pure AWT application.
3887 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) {
3888 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component;
3889 javax.swing.JRootPane root = rpc.getRootPane();
3890 javax.swing.JLayeredPane lp = root.getLayeredPane();
3891 Container c = root.getContentPane();
3892 javax.swing.JComponent content =
3893 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null;
3894 lp.setOpaque(isOpaque);
3895 root.setOpaque(isOpaque);
3896 if (content != null) {
3897 content.setOpaque(isOpaque);
3898
3899 // Iterate down one level to see whether we have a JApplet
3900 // (which is also a RootPaneContainer) which requires processing
3901 int numChildren = content.getComponentCount();
3902 if (numChildren > 0) {
3903 Component child = content.getComponent(0);
3904 // It's OK to use instanceof here because we've
3905 // already loaded the RootPaneContainer class by now
3906 if (child instanceof javax.swing.RootPaneContainer) {
3907 setLayersOpaque(child, isOpaque);
3908 }
3909 }
3910 }
3911 }
3912 }
3913
3914
3915 // ************************** MIXING CODE *******************************
3916
3917 // A window has a parent, but it does NOT have a container
3918 @Override
3919 final Container getContainer() {
3920 return null;
3921 }
3922
3923 /**
3924 * Applies the shape to the component
3925 * @param shape Shape to be applied to the component
3926 */
3927 @Override
3928 final void applyCompoundShape(Region shape) {
3929 // The shape calculated by mixing code is not intended to be applied
3930 // to windows or frames
3931 }
3932
3933 @Override
3934 final void applyCurrentShape() {
3935 // The shape calculated by mixing code is not intended to be applied
3936 // to windows or frames
3937 }
3938
3939 @Override
3940 final void mixOnReshaping() {
3941 // The shape calculated by mixing code is not intended to be applied
3942 // to windows or frames
3943 }
3944
3945 @Override
3946 final Point getLocationOnWindow() {
3947 return new Point(0, 0);
3948 }
3949
3950 // ****************** END OF MIXING CODE ********************************
3951
3952 /**
3953 * Limit the given double value with the given range.
3954 */
3955 private static double limit(double value, double min, double max) {
3956 value = Math.max(value, min);
3957 value = Math.min(value, max);
3958 return value;
3959 }
3960
3961 /**
3962 * Calculate the position of the security warning.
3963 *
3964 * This method gets the window location/size as reported by the native
3965 * system since the locally cached values may represent outdated data.
3966 *
3967 * The method is used from the native code, or via AWTAccessor.
3968 *
3969 * NOTE: this method is invoked on the toolkit thread, and therefore is not
3970 * supposed to become public/user-overridable.
3971 */
3972 private Point2D calculateSecurityWarningPosition(double x, double y,
3973 double w, double h)
3974 {
3975 // The position according to the spec of SecurityWarning.setPosition()
3976 double wx = x + w * securityWarningAlignmentX + securityWarningPointX;
3977 double wy = y + h * securityWarningAlignmentY + securityWarningPointY;
3978
3979 // First, make sure the warning is not too far from the window bounds
3980 wx = Window.limit(wx,
3981 x - securityWarningWidth - 2,
3982 x + w + 2);
3983 wy = Window.limit(wy,
3984 y - securityWarningHeight - 2,
3985 y + h + 2);
3986
3987 // Now make sure the warning window is visible on the screen
3988 GraphicsConfiguration graphicsConfig =
3989 getGraphicsConfiguration_NoClientCode();
3990 Rectangle screenBounds = graphicsConfig.getBounds();
3991 Insets screenInsets =
3992 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig);
3993
3994 wx = Window.limit(wx,
3995 screenBounds.x + screenInsets.left,
3996 screenBounds.x + screenBounds.width - screenInsets.right
3997 - securityWarningWidth);
3998 wy = Window.limit(wy,
3999 screenBounds.y + screenInsets.top,
4000 screenBounds.y + screenBounds.height - screenInsets.bottom
4001 - securityWarningHeight);
4002
4003 return new Point2D.Double(wx, wy);
4004 }
4005
4006 static {
4007 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() {
4008 public float getOpacity(Window window) {
4009 return window.opacity;
4010 }
4011 public void setOpacity(Window window, float opacity) {
4012 window.setOpacity(opacity);
4013 }
4014 public Shape getShape(Window window) {
4015 return window.getShape();
4016 }
4017 public void setShape(Window window, Shape shape) {
4018 window.setShape(shape);
4019 }
4020 public void setOpaque(Window window, boolean opaque) {
4021 Color bg = window.getBackground();
4022 if (bg == null) {
4023 bg = new Color(0, 0, 0, 0);
4024 }
4025 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(),
4026 opaque ? 255 : 0));
4027 }
4028 public void updateWindow(Window window) {
4029 window.updateWindow();
4030 }
4031
4032 public Dimension getSecurityWarningSize(Window window) {
4033 return new Dimension(window.securityWarningWidth,
4034 window.securityWarningHeight);
4035 }
4036
4037 public void setSecurityWarningSize(Window window, int width, int height)
4038 {
4039 window.securityWarningWidth = width;
4040 window.securityWarningHeight = height;
4041 }
4042
4043 public void setSecurityWarningPosition(Window window,
4044 Point2D point, float alignmentX, float alignmentY)
4045 {
4046 window.securityWarningPointX = point.getX();
4047 window.securityWarningPointY = point.getY();
4048 window.securityWarningAlignmentX = alignmentX;
4049 window.securityWarningAlignmentY = alignmentY;
4050
4051 synchronized (window.getTreeLock()) {
4052 WindowPeer windowPeer = (WindowPeer)window.peer;
4053 if (windowPeer != null) {
4054 windowPeer.repositionSecurityWarning();
4055 }
4056 }
4057 }
4058
4059 public Point2D calculateSecurityWarningPosition(Window window,
4060 double x, double y, double w, double h)
4061 {
4062 return window.calculateSecurityWarningPosition(x, y, w, h);
4063 }
4064
4065 public void setLWRequestStatus(Window changed, boolean status) {
4066 changed.syncLWRequests = status;
4067 }
4068
4069 public boolean isAutoRequestFocus(Window w) {
4070 return w.autoRequestFocus;
4071 }
4072
4073 public boolean isTrayIconWindow(Window w) {
4074 return w.isTrayIconWindow;
4075 }
4076
4077 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) {
4078 w.isTrayIconWindow = isTrayIconWindow;
4079 }
4080 }); // WindowAccessor
4081 } // static
4082
4083 // a window doesn't need to be updated in the Z-order.
4084 @Override
4085 void updateZOrder() {}
4086
4087 } // class Window
4088
4089
4090 /**
4091 * This class is no longer used, but is maintained for Serialization
4092 * backward-compatibility.
4093 */
4094 class FocusManager implements java.io.Serializable {
4095 Container focusRoot;
4096 Component focusOwner;
4097
4098 /*
4099 * JDK 1.1 serialVersionUID
4100 */
4101 static final long serialVersionUID = 2491878825643557906L;
4102 }