1 /* 2 * Copyright (c) 1995, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.peer.ComponentPeer; 33 import java.awt.peer.WindowPeer; 34 import java.beans.PropertyChangeListener; 35 import java.io.IOException; 36 import java.io.ObjectInputStream; 37 import java.io.ObjectOutputStream; 38 import java.io.OptionalDataException; 39 import java.io.Serializable; 40 import java.lang.ref.WeakReference; 41 import java.lang.reflect.InvocationTargetException; 42 import java.security.AccessController; 43 import java.util.ArrayList; 44 import java.util.Arrays; 45 import java.util.EventListener; 46 import java.util.Locale; 47 import java.util.ResourceBundle; 48 import java.util.Set; 49 import java.util.Vector; 50 import java.util.concurrent.atomic.AtomicBoolean; 51 import javax.accessibility.*; 52 import sun.awt.AWTAccessor; 53 import sun.awt.AWTPermissions; 54 import sun.awt.AppContext; 55 import sun.awt.DebugSettings; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.pipe.Region; 59 import sun.security.action.GetPropertyAction; 60 import sun.util.logging.PlatformLogger; 61 62 /** 63 * A {@code Window} object is a top-level window with no borders and no 64 * menubar. 65 * The default layout for a window is {@code BorderLayout}. 66 * <p> 67 * A window must have either a frame, dialog, or another window defined as its 68 * owner when it's constructed. 69 * <p> 70 * In a multi-screen environment, you can create a {@code Window} 71 * on a different screen device by constructing the {@code Window} 72 * with {@link #Window(Window, GraphicsConfiguration)}. The 73 * {@code GraphicsConfiguration} object is one of the 74 * {@code GraphicsConfiguration} objects of the target screen device. 75 * <p> 76 * In a virtual device multi-screen environment in which the desktop 77 * area could span multiple physical screen devices, the bounds of all 78 * configurations are relative to the virtual device coordinate system. 79 * The origin of the virtual-coordinate system is at the upper left-hand 80 * corner of the primary physical screen. Depending on the location of 81 * the primary screen in the virtual device, negative coordinates are 82 * possible, as shown in the following figure. 83 * <p> 84 * <img src="doc-files/MultiScreen.gif" 85 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 86 * style="float:center; margin: 7px 10px;"> 87 * <p> 88 * In such an environment, when calling {@code setLocation}, 89 * you must pass a virtual coordinate to this method. Similarly, 90 * calling {@code getLocationOnScreen} on a {@code Window} returns 91 * virtual device coordinates. Call the {@code getBounds} method 92 * of a {@code GraphicsConfiguration} to find its origin in the virtual 93 * coordinate system. 94 * <p> 95 * The following code sets the location of a {@code Window} 96 * at (10, 10) relative to the origin of the physical screen 97 * of the corresponding {@code GraphicsConfiguration}. If the 98 * bounds of the {@code GraphicsConfiguration} is not taken 99 * into account, the {@code Window} location would be set 100 * at (10, 10) relative to the virtual-coordinate system and would appear 101 * on the primary physical screen, which might be different from the 102 * physical screen of the specified {@code GraphicsConfiguration}. 103 * 104 * <pre> 105 * Window w = new Window(Window owner, GraphicsConfiguration gc); 106 * Rectangle bounds = gc.getBounds(); 107 * w.setLocation(10 + bounds.x, 10 + bounds.y); 108 * </pre> 109 * 110 * <p> 111 * Note: the location and size of top-level windows (including 112 * {@code Window}s, {@code Frame}s, and {@code Dialog}s) 113 * are under the control of the desktop's window management system. 114 * Calls to {@code setLocation}, {@code setSize}, and 115 * {@code setBounds} are requests (not directives) which are 116 * forwarded to the window management system. Every effort will be 117 * made to honor such requests. However, in some cases the window 118 * management system may ignore such requests, or modify the requested 119 * geometry in order to place and size the {@code Window} in a way 120 * that more closely matches the desktop settings. 121 * <p> 122 * Due to the asynchronous nature of native event handling, the results 123 * returned by {@code getBounds}, {@code getLocation}, 124 * {@code getLocationOnScreen}, and {@code getSize} might not 125 * reflect the actual geometry of the Window on screen until the last 126 * request has been processed. During the processing of subsequent 127 * requests these values might change accordingly while the window 128 * management system fulfills the requests. 129 * <p> 130 * An application may set the size and location of an invisible 131 * {@code Window} arbitrarily, but the window management system may 132 * subsequently change its size and/or location when the 133 * {@code Window} is made visible. One or more {@code ComponentEvent}s 134 * will be generated to indicate the new geometry. 135 * <p> 136 * Windows are capable of generating the following WindowEvents: 137 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 138 * 139 * @author Sami Shaio 140 * @author Arthur van Hoff 141 * @see WindowEvent 142 * @see #addWindowListener 143 * @see java.awt.BorderLayout 144 * @since 1.0 145 */ 146 public class Window extends Container implements Accessible { 147 148 /** 149 * Enumeration of available <i>window types</i>. 150 * 151 * A window type defines the generic visual appearance and behavior of a 152 * top-level window. For example, the type may affect the kind of 153 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 154 * <p> 155 * Some platforms may not fully support a certain window type. Depending on 156 * the level of support, some properties of the window type may be 157 * disobeyed. 158 * 159 * @see #getType 160 * @see #setType 161 * @since 1.7 162 */ 163 public static enum Type { 164 /** 165 * Represents a <i>normal</i> window. 166 * 167 * This is the default type for objects of the {@code Window} class or 168 * its descendants. Use this type for regular top-level windows. 169 */ 170 NORMAL, 171 172 /** 173 * Represents a <i>utility</i> window. 174 * 175 * A utility window is usually a small window such as a toolbar or a 176 * palette. The native system may render the window with smaller 177 * title-bar if the window is either a {@code Frame} or a {@code 178 * Dialog} object, and if it has its decorations enabled. 179 */ 180 UTILITY, 181 182 /** 183 * Represents a <i>popup</i> window. 184 * 185 * A popup window is a temporary window such as a drop-down menu or a 186 * tooltip. On some platforms, windows of that type may be forcibly 187 * made undecorated even if they are instances of the {@code Frame} or 188 * {@code Dialog} class, and have decorations enabled. 189 */ 190 POPUP 191 } 192 193 /** 194 * This represents the warning message that is 195 * to be displayed in a non secure window. ie : 196 * a window that has a security manager installed that denies 197 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 198 * This message can be displayed anywhere in the window. 199 * 200 * @serial 201 * @see #getWarningString 202 */ 203 String warningString; 204 205 /** 206 * {@code icons} is the graphical way we can 207 * represent the frames and dialogs. 208 * {@code Window} can't display icon but it's 209 * being inherited by owned {@code Dialog}s. 210 * 211 * @serial 212 * @see #getIconImages 213 * @see #setIconImages 214 */ 215 transient java.util.List<Image> icons; 216 217 /** 218 * Holds the reference to the component which last had focus in this window 219 * before it lost focus. 220 */ 221 private transient Component temporaryLostComponent; 222 223 static boolean systemSyncLWRequests = false; 224 boolean syncLWRequests = false; 225 transient boolean beforeFirstShow = true; 226 private transient boolean disposing = false; 227 transient WindowDisposerRecord disposerRecord = null; 228 229 static final int OPENED = 0x01; 230 231 /** 232 * An Integer value representing the Window State. 233 * 234 * @serial 235 * @since 1.2 236 * @see #show 237 */ 238 int state; 239 240 /** 241 * A boolean value representing Window always-on-top state 242 * @since 1.5 243 * @serial 244 * @see #setAlwaysOnTop 245 * @see #isAlwaysOnTop 246 */ 247 private boolean alwaysOnTop; 248 249 /** 250 * Contains all the windows that have a peer object associated, 251 * i. e. between addNotify() and removeNotify() calls. The list 252 * of all Window instances can be obtained from AppContext object. 253 * 254 * @since 1.6 255 */ 256 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 257 258 /** 259 * A vector containing all the windows this 260 * window currently owns. 261 * @since 1.2 262 * @see #getOwnedWindows 263 */ 264 transient Vector<WeakReference<Window>> ownedWindowList = 265 new Vector<WeakReference<Window>>(); 266 267 /* 268 * We insert a weak reference into the Vector of all Windows in AppContext 269 * instead of 'this' so that garbage collection can still take place 270 * correctly. 271 */ 272 private transient WeakReference<Window> weakThis; 273 274 transient boolean showWithParent; 275 276 /** 277 * Contains the modal dialog that blocks this window, or null 278 * if the window is unblocked. 279 * 280 * @since 1.6 281 */ 282 transient Dialog modalBlocker; 283 284 /** 285 * @serial 286 * 287 * @see java.awt.Dialog.ModalExclusionType 288 * @see #getModalExclusionType 289 * @see #setModalExclusionType 290 * 291 * @since 1.6 292 */ 293 Dialog.ModalExclusionType modalExclusionType; 294 295 transient WindowListener windowListener; 296 transient WindowStateListener windowStateListener; 297 transient WindowFocusListener windowFocusListener; 298 299 transient InputContext inputContext; 300 private transient Object inputContextLock = new Object(); 301 302 /** 303 * Unused. Maintained for serialization backward-compatibility. 304 * 305 * @serial 306 * @since 1.2 307 */ 308 private FocusManager focusMgr; 309 310 /** 311 * Indicates whether this Window can become the focused Window. 312 * 313 * @serial 314 * @see #getFocusableWindowState 315 * @see #setFocusableWindowState 316 * @since 1.4 317 */ 318 private boolean focusableWindowState = true; 319 320 /** 321 * Indicates whether this window should receive focus on 322 * subsequently being shown (with a call to {@code setVisible(true)}), or 323 * being moved to the front (with a call to {@code toFront()}). 324 * 325 * @serial 326 * @see #setAutoRequestFocus 327 * @see #isAutoRequestFocus 328 * @since 1.7 329 */ 330 private volatile boolean autoRequestFocus = true; 331 332 /* 333 * Indicates that this window is being shown. This flag is set to true at 334 * the beginning of show() and to false at the end of show(). 335 * 336 * @see #show() 337 * @see Dialog#shouldBlock 338 */ 339 transient boolean isInShow = false; 340 341 /** 342 * The opacity level of the window 343 * 344 * @serial 345 * @see #setOpacity(float) 346 * @see #getOpacity() 347 * @since 1.7 348 */ 349 private volatile float opacity = 1.0f; 350 351 /** 352 * The shape assigned to this window. This field is set to {@code null} if 353 * no shape is set (rectangular window). 354 * 355 * @serial 356 * @see #getShape() 357 * @see #setShape(Shape) 358 * @since 1.7 359 */ 360 private Shape shape = null; 361 362 private static final String base = "win"; 363 private static int nameCounter = 0; 364 365 /* 366 * JDK 1.1 serialVersionUID 367 */ 368 private static final long serialVersionUID = 4497834738069338734L; 369 370 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 371 372 private static final boolean locationByPlatformProp; 373 374 transient boolean isTrayIconWindow = false; 375 376 /** 377 * These fields are initialized in the native peer code 378 * or via AWTAccessor's WindowAccessor. 379 */ 380 private transient volatile int securityWarningWidth = 0; 381 private transient volatile int securityWarningHeight = 0; 382 383 /** 384 * These fields represent the desired location for the security 385 * warning if this window is untrusted. 386 * See com.sun.awt.SecurityWarning for more details. 387 */ 388 private transient double securityWarningPointX = 2.0; 389 private transient double securityWarningPointY = 0.0; 390 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 391 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 392 393 static { 394 /* ensure that the necessary native libraries are loaded */ 395 Toolkit.loadLibraries(); 396 if (!GraphicsEnvironment.isHeadless()) { 397 initIDs(); 398 } 399 400 String s = java.security.AccessController.doPrivileged( 401 new GetPropertyAction("java.awt.syncLWRequests")); 402 systemSyncLWRequests = (s != null && s.equals("true")); 403 s = java.security.AccessController.doPrivileged( 404 new GetPropertyAction("java.awt.Window.locationByPlatform")); 405 locationByPlatformProp = (s != null && s.equals("true")); 406 } 407 408 /** 409 * Initialize JNI field and method IDs for fields that may be 410 accessed from C. 411 */ 412 private static native void initIDs(); 413 414 /** 415 * Constructs a new, initially invisible window in default size with the 416 * specified {@code GraphicsConfiguration}. 417 * <p> 418 * If there is a security manager, then it is invoked to check 419 * {@code AWTPermission("showWindowWithoutWarningBanner")} 420 * to determine whether or not the window must be displayed with 421 * a warning banner. 422 * 423 * @param gc the {@code GraphicsConfiguration} of the target screen 424 * device. If {@code gc} is {@code null}, the system default 425 * {@code GraphicsConfiguration} is assumed 426 * @exception IllegalArgumentException if {@code gc} 427 * is not from a screen device 428 * @exception HeadlessException when 429 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 430 * 431 * @see java.awt.GraphicsEnvironment#isHeadless 432 */ 433 Window(GraphicsConfiguration gc) { 434 init(gc); 435 } 436 437 transient Object anchor = new Object(); 438 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 439 WeakReference<Window> owner; 440 final WeakReference<Window> weakThis; 441 final WeakReference<AppContext> context; 442 443 WindowDisposerRecord(AppContext context, Window victim) { 444 weakThis = victim.weakThis; 445 this.context = new WeakReference<AppContext>(context); 446 } 447 448 public void updateOwner() { 449 Window victim = weakThis.get(); 450 owner = (victim == null) 451 ? null 452 : new WeakReference<Window>(victim.getOwner()); 453 } 454 455 public void dispose() { 456 if (owner != null) { 457 Window parent = owner.get(); 458 if (parent != null) { 459 parent.removeOwnedWindow(weakThis); 460 } 461 } 462 AppContext ac = context.get(); 463 if (null != ac) { 464 Window.removeFromWindowList(ac, weakThis); 465 } 466 } 467 } 468 469 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 470 GraphicsEnvironment.checkHeadless(); 471 472 if (gc == null) { 473 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 474 getDefaultScreenDevice().getDefaultConfiguration(); 475 } 476 setGraphicsConfiguration(gc); 477 478 return gc; 479 } 480 481 private void init(GraphicsConfiguration gc) { 482 GraphicsEnvironment.checkHeadless(); 483 484 syncLWRequests = systemSyncLWRequests; 485 486 weakThis = new WeakReference<Window>(this); 487 addToWindowList(); 488 489 setWarningString(); 490 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 491 this.visible = false; 492 493 gc = initGC(gc); 494 495 if (gc.getDevice().getType() != 496 GraphicsDevice.TYPE_RASTER_SCREEN) { 497 throw new IllegalArgumentException("not a screen device"); 498 } 499 setLayout(new BorderLayout()); 500 501 /* offset the initial location with the original of the screen */ 502 /* and any insets */ 503 Rectangle screenBounds = gc.getBounds(); 504 Insets screenInsets = getToolkit().getScreenInsets(gc); 505 int x = getX() + screenBounds.x + screenInsets.left; 506 int y = getY() + screenBounds.y + screenInsets.top; 507 if (x != this.x || y != this.y) { 508 setLocation(x, y); 509 /* reset after setLocation */ 510 setLocationByPlatform(locationByPlatformProp); 511 } 512 513 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 514 disposerRecord = new WindowDisposerRecord(appContext, this); 515 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 516 517 SunToolkit.checkAndSetPolicy(this); 518 } 519 520 /** 521 * Constructs a new, initially invisible window in the default size. 522 * <p> 523 * If there is a security manager set, it is invoked to check 524 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 525 * If that check fails with a {@code SecurityException} then a warning 526 * banner is created. 527 * 528 * @exception HeadlessException when 529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 530 * 531 * @see java.awt.GraphicsEnvironment#isHeadless 532 */ 533 Window() throws HeadlessException { 534 GraphicsEnvironment.checkHeadless(); 535 init((GraphicsConfiguration)null); 536 } 537 538 /** 539 * Constructs a new, initially invisible window with the specified 540 * {@code Frame} as its owner. The window will not be focusable 541 * unless its owner is showing on the screen. 542 * <p> 543 * If there is a security manager set, it is invoked to check 544 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 545 * If that check fails with a {@code SecurityException} then a warning 546 * banner is created. 547 * 548 * @param owner the {@code Frame} to act as owner or {@code null} 549 * if this window has no owner 550 * @exception IllegalArgumentException if the {@code owner}'s 551 * {@code GraphicsConfiguration} is not from a screen device 552 * @exception HeadlessException when 553 * {@code GraphicsEnvironment.isHeadless} returns {@code true} 554 * 555 * @see java.awt.GraphicsEnvironment#isHeadless 556 * @see #isShowing 557 */ 558 public Window(Frame owner) { 559 this(owner == null ? (GraphicsConfiguration)null : 560 owner.getGraphicsConfiguration()); 561 ownedInit(owner); 562 } 563 564 /** 565 * Constructs a new, initially invisible window with the specified 566 * {@code Window} as its owner. This window will not be focusable 567 * unless its nearest owning {@code Frame} or {@code Dialog} 568 * is showing on the screen. 569 * <p> 570 * If there is a security manager set, it is invoked to check 571 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 572 * If that check fails with a {@code SecurityException} then a 573 * warning banner is created. 574 * 575 * @param owner the {@code Window} to act as owner or 576 * {@code null} if this window has no owner 577 * @exception IllegalArgumentException if the {@code owner}'s 578 * {@code GraphicsConfiguration} is not from a screen device 579 * @exception HeadlessException when 580 * {@code GraphicsEnvironment.isHeadless()} returns 581 * {@code true} 582 * 583 * @see java.awt.GraphicsEnvironment#isHeadless 584 * @see #isShowing 585 * 586 * @since 1.2 587 */ 588 public Window(Window owner) { 589 this(owner == null ? (GraphicsConfiguration)null : 590 owner.getGraphicsConfiguration()); 591 ownedInit(owner); 592 } 593 594 /** 595 * Constructs a new, initially invisible window with the specified owner 596 * {@code Window} and a {@code GraphicsConfiguration} 597 * of a screen device. The Window will not be focusable unless 598 * its nearest owning {@code Frame} or {@code Dialog} 599 * is showing on the screen. 600 * <p> 601 * If there is a security manager set, it is invoked to check 602 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that 603 * check fails with a {@code SecurityException} then a warning banner 604 * is created. 605 * 606 * @param owner the window to act as owner or {@code null} 607 * if this window has no owner 608 * @param gc the {@code GraphicsConfiguration} of the target 609 * screen device; if {@code gc} is {@code null}, 610 * the system default {@code GraphicsConfiguration} is assumed 611 * @exception IllegalArgumentException if {@code gc} 612 * is not from a screen device 613 * @exception HeadlessException when 614 * {@code GraphicsEnvironment.isHeadless()} returns 615 * {@code true} 616 * 617 * @see java.awt.GraphicsEnvironment#isHeadless 618 * @see GraphicsConfiguration#getBounds 619 * @see #isShowing 620 * @since 1.3 621 */ 622 public Window(Window owner, GraphicsConfiguration gc) { 623 this(gc); 624 ownedInit(owner); 625 } 626 627 private void ownedInit(Window owner) { 628 this.parent = owner; 629 if (owner != null) { 630 owner.addOwnedWindow(weakThis); 631 if (owner.isAlwaysOnTop()) { 632 try { 633 setAlwaysOnTop(true); 634 } catch (SecurityException ignore) { 635 } 636 } 637 } 638 639 // WindowDisposerRecord requires a proper value of parent field. 640 disposerRecord.updateOwner(); 641 } 642 643 /** 644 * Construct a name for this component. Called by getName() when the 645 * name is null. 646 */ 647 String constructComponentName() { 648 synchronized (Window.class) { 649 return base + nameCounter++; 650 } 651 } 652 653 /** 654 * Returns the sequence of images to be displayed as the icon for this window. 655 * <p> 656 * This method returns a copy of the internally stored list, so all operations 657 * on the returned object will not affect the window's behavior. 658 * 659 * @return the copy of icon images' list for this window, or 660 * empty list if this window doesn't have icon images. 661 * @see #setIconImages 662 * @see #setIconImage(Image) 663 * @since 1.6 664 */ 665 public java.util.List<Image> getIconImages() { 666 java.util.List<Image> icons = this.icons; 667 if (icons == null || icons.size() == 0) { 668 return new ArrayList<Image>(); 669 } 670 return new ArrayList<Image>(icons); 671 } 672 673 /** 674 * Sets the sequence of images to be displayed as the icon 675 * for this window. Subsequent calls to {@code getIconImages} will 676 * always return a copy of the {@code icons} list. 677 * <p> 678 * Depending on the platform capabilities one or several images 679 * of different dimensions will be used as the window's icon. 680 * <p> 681 * The {@code icons} list is scanned for the images of most 682 * appropriate dimensions from the beginning. If the list contains 683 * several images of the same size, the first will be used. 684 * <p> 685 * Ownerless windows with no icon specified use platform-default icon. 686 * The icon of an owned window may be inherited from the owner 687 * unless explicitly overridden. 688 * Setting the icon to {@code null} or empty list restores 689 * the default behavior. 690 * <p> 691 * Note : Native windowing systems may use different images of differing 692 * dimensions to represent a window, depending on the context (e.g. 693 * window decoration, window list, taskbar, etc.). They could also use 694 * just a single image for all contexts or no image at all. 695 * 696 * @param icons the list of icon images to be displayed. 697 * @see #getIconImages() 698 * @see #setIconImage(Image) 699 * @since 1.6 700 */ 701 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 702 this.icons = (icons == null) ? new ArrayList<Image>() : 703 new ArrayList<Image>(icons); 704 WindowPeer peer = (WindowPeer)this.peer; 705 if (peer != null) { 706 peer.updateIconImages(); 707 } 708 // Always send a property change event 709 firePropertyChange("iconImage", null, null); 710 } 711 712 /** 713 * Sets the image to be displayed as the icon for this window. 714 * <p> 715 * This method can be used instead of {@link #setIconImages setIconImages()} 716 * to specify a single image as a window's icon. 717 * <p> 718 * The following statement: 719 * <pre> 720 * setIconImage(image); 721 * </pre> 722 * is equivalent to: 723 * <pre> 724 * ArrayList<Image> imageList = new ArrayList<Image>(); 725 * imageList.add(image); 726 * setIconImages(imageList); 727 * </pre> 728 * <p> 729 * Note : Native windowing systems may use different images of differing 730 * dimensions to represent a window, depending on the context (e.g. 731 * window decoration, window list, taskbar, etc.). They could also use 732 * just a single image for all contexts or no image at all. 733 * 734 * @param image the icon image to be displayed. 735 * @see #setIconImages 736 * @see #getIconImages() 737 * @since 1.6 738 */ 739 public void setIconImage(Image image) { 740 ArrayList<Image> imageList = new ArrayList<Image>(); 741 if (image != null) { 742 imageList.add(image); 743 } 744 setIconImages(imageList); 745 } 746 747 /** 748 * Makes this Window displayable by creating the connection to its 749 * native screen resource. 750 * This method is called internally by the toolkit and should 751 * not be called directly by programs. 752 * @see Component#isDisplayable 753 * @see Container#removeNotify 754 * @since 1.0 755 */ 756 public void addNotify() { 757 synchronized (getTreeLock()) { 758 Container parent = this.parent; 759 if (parent != null && parent.peer == null) { 760 parent.addNotify(); 761 } 762 if (peer == null) { 763 peer = getComponentFactory().createWindow(this); 764 } 765 synchronized (allWindows) { 766 allWindows.add(this); 767 } 768 super.addNotify(); 769 } 770 } 771 772 /** 773 * {@inheritDoc} 774 */ 775 public void removeNotify() { 776 synchronized (getTreeLock()) { 777 synchronized (allWindows) { 778 allWindows.remove(this); 779 } 780 super.removeNotify(); 781 } 782 } 783 784 /** 785 * Causes this Window to be sized to fit the preferred size 786 * and layouts of its subcomponents. The resulting width and 787 * height of the window are automatically enlarged if either 788 * of dimensions is less than the minimum size as specified 789 * by the previous call to the {@code setMinimumSize} method. 790 * <p> 791 * If the window and/or its owner are not displayable yet, 792 * both of them are made displayable before calculating 793 * the preferred size. The Window is validated after its 794 * size is being calculated. 795 * 796 * @see Component#isDisplayable 797 * @see #setMinimumSize 798 */ 799 @SuppressWarnings("deprecation") 800 public void pack() { 801 Container parent = this.parent; 802 if (parent != null && parent.peer == null) { 803 parent.addNotify(); 804 } 805 if (peer == null) { 806 addNotify(); 807 } 808 Dimension newSize = getPreferredSize(); 809 if (peer != null) { 810 setClientSize(newSize.width, newSize.height); 811 } 812 813 if(beforeFirstShow) { 814 isPacked = true; 815 } 816 817 validateUnconditionally(); 818 } 819 820 /** 821 * Sets the minimum size of this window to a constant 822 * value. Subsequent calls to {@code getMinimumSize} 823 * will always return this value. If current window's 824 * size is less than {@code minimumSize} the size of the 825 * window is automatically enlarged to honor the minimum size. 826 * <p> 827 * If the {@code setSize} or {@code setBounds} methods 828 * are called afterwards with a width or height less than 829 * that was specified by the {@code setMinimumSize} method 830 * the window is automatically enlarged to meet 831 * the {@code minimumSize} value. The {@code minimumSize} 832 * value also affects the behaviour of the {@code pack} method. 833 * <p> 834 * The default behavior is restored by setting the minimum size 835 * parameter to the {@code null} value. 836 * <p> 837 * Resizing operation may be restricted if the user tries 838 * to resize window below the {@code minimumSize} value. 839 * This behaviour is platform-dependent. 840 * 841 * @param minimumSize the new minimum size of this window 842 * @see Component#setMinimumSize 843 * @see #getMinimumSize 844 * @see #isMinimumSizeSet 845 * @see #setSize(Dimension) 846 * @see #pack 847 * @since 1.6 848 */ 849 public void setMinimumSize(Dimension minimumSize) { 850 synchronized (getTreeLock()) { 851 super.setMinimumSize(minimumSize); 852 Dimension size = getSize(); 853 if (isMinimumSizeSet()) { 854 if (size.width < minimumSize.width || size.height < minimumSize.height) { 855 int nw = Math.max(width, minimumSize.width); 856 int nh = Math.max(height, minimumSize.height); 857 setSize(nw, nh); 858 } 859 } 860 if (peer != null) { 861 ((WindowPeer)peer).updateMinimumSize(); 862 } 863 } 864 } 865 866 /** 867 * {@inheritDoc} 868 * <p> 869 * The {@code d.width} and {@code d.height} values 870 * are automatically enlarged if either is less than 871 * the minimum size as specified by previous call to 872 * {@code setMinimumSize}. 873 * <p> 874 * The method changes the geometry-related data. Therefore, 875 * the native windowing system may ignore such requests, or it may modify 876 * the requested data, so that the {@code Window} object is placed and sized 877 * in a way that corresponds closely to the desktop settings. 878 * 879 * @see #getSize 880 * @see #setBounds 881 * @see #setMinimumSize 882 * @since 1.6 883 */ 884 public void setSize(Dimension d) { 885 super.setSize(d); 886 } 887 888 /** 889 * {@inheritDoc} 890 * <p> 891 * The {@code width} and {@code height} values 892 * are automatically enlarged if either is less than 893 * the minimum size as specified by previous call to 894 * {@code setMinimumSize}. 895 * <p> 896 * The method changes the geometry-related data. Therefore, 897 * the native windowing system may ignore such requests, or it may modify 898 * the requested data, so that the {@code Window} object is placed and sized 899 * in a way that corresponds closely to the desktop settings. 900 * 901 * @see #getSize 902 * @see #setBounds 903 * @see #setMinimumSize 904 * @since 1.6 905 */ 906 public void setSize(int width, int height) { 907 super.setSize(width, height); 908 } 909 910 /** 911 * {@inheritDoc} 912 * <p> 913 * The method changes the geometry-related data. Therefore, 914 * the native windowing system may ignore such requests, or it may modify 915 * the requested data, so that the {@code Window} object is placed and sized 916 * in a way that corresponds closely to the desktop settings. 917 */ 918 @Override 919 public void setLocation(int x, int y) { 920 super.setLocation(x, y); 921 } 922 923 /** 924 * {@inheritDoc} 925 * <p> 926 * The method changes the geometry-related data. Therefore, 927 * the native windowing system may ignore such requests, or it may modify 928 * the requested data, so that the {@code Window} object is placed and sized 929 * in a way that corresponds closely to the desktop settings. 930 */ 931 @Override 932 public void setLocation(Point p) { 933 super.setLocation(p); 934 } 935 936 /** 937 * @deprecated As of JDK version 1.1, 938 * replaced by {@code setBounds(int, int, int, int)}. 939 */ 940 @Deprecated 941 public void reshape(int x, int y, int width, int height) { 942 if (isMinimumSizeSet()) { 943 Dimension minSize = getMinimumSize(); 944 if (width < minSize.width) { 945 width = minSize.width; 946 } 947 if (height < minSize.height) { 948 height = minSize.height; 949 } 950 } 951 super.reshape(x, y, width, height); 952 } 953 954 void setClientSize(int w, int h) { 955 synchronized (getTreeLock()) { 956 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 957 setBounds(x, y, w, h); 958 } 959 } 960 961 private static final AtomicBoolean 962 beforeFirstWindowShown = new AtomicBoolean(true); 963 964 final void closeSplashScreen() { 965 if (isTrayIconWindow) { 966 return; 967 } 968 if (beforeFirstWindowShown.getAndSet(false)) { 969 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 970 // the object if it hasn't been requested by user code explicitly 971 SunToolkit.closeSplashScreen(); 972 SplashScreen.markClosed(); 973 } 974 } 975 976 /** 977 * Shows or hides this {@code Window} depending on the value of parameter 978 * {@code b}. 979 * <p> 980 * If the method shows the window then the window is also made 981 * focused under the following conditions: 982 * <ul> 983 * <li> The {@code Window} meets the requirements outlined in the 984 * {@link #isFocusableWindow} method. 985 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 986 * <li> Native windowing system allows the {@code Window} to get focused. 987 * </ul> 988 * There is an exception for the second condition (the value of the 989 * {@code autoRequestFocus} property). The property is not taken into account if the 990 * window is a modal dialog, which blocks the currently focused window. 991 * <p> 992 * Developers must never assume that the window is the focused or active window 993 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 994 * @param b if {@code true}, makes the {@code Window} visible, 995 * otherwise hides the {@code Window}. 996 * If the {@code Window} and/or its owner 997 * are not yet displayable, both are made displayable. The 998 * {@code Window} will be validated prior to being made visible. 999 * If the {@code Window} is already visible, this will bring the 1000 * {@code Window} to the front.<p> 1001 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1002 * of its owned children. 1003 * The {@code Window} and its subcomponents can be made visible again 1004 * with a call to {@code #setVisible(true)}. 1005 * @see java.awt.Component#isDisplayable 1006 * @see java.awt.Component#setVisible 1007 * @see java.awt.Window#toFront 1008 * @see java.awt.Window#dispose 1009 * @see java.awt.Window#setAutoRequestFocus 1010 * @see java.awt.Window#isFocusableWindow 1011 */ 1012 public void setVisible(boolean b) { 1013 super.setVisible(b); 1014 } 1015 1016 /** 1017 * Makes the Window visible. If the Window and/or its owner 1018 * are not yet displayable, both are made displayable. The 1019 * Window will be validated prior to being made visible. 1020 * If the Window is already visible, this will bring the Window 1021 * to the front. 1022 * @see Component#isDisplayable 1023 * @see #toFront 1024 * @deprecated As of JDK version 1.5, replaced by 1025 * {@link #setVisible(boolean)}. 1026 */ 1027 @Deprecated 1028 public void show() { 1029 if (peer == null) { 1030 addNotify(); 1031 } 1032 validateUnconditionally(); 1033 1034 isInShow = true; 1035 if (visible) { 1036 toFront(); 1037 } else { 1038 beforeFirstShow = false; 1039 closeSplashScreen(); 1040 Dialog.checkShouldBeBlocked(this); 1041 super.show(); 1042 locationByPlatform = false; 1043 for (int i = 0; i < ownedWindowList.size(); i++) { 1044 Window child = ownedWindowList.elementAt(i).get(); 1045 if ((child != null) && child.showWithParent) { 1046 child.show(); 1047 child.showWithParent = false; 1048 } // endif 1049 } // endfor 1050 if (!isModalBlocked()) { 1051 updateChildrenBlocking(); 1052 } else { 1053 // fix for 6532736: after this window is shown, its blocker 1054 // should be raised to front 1055 modalBlocker.toFront_NoClientCode(); 1056 } 1057 if (this instanceof Frame || this instanceof Dialog) { 1058 updateChildFocusableWindowState(this); 1059 } 1060 } 1061 isInShow = false; 1062 1063 // If first time shown, generate WindowOpened event 1064 if ((state & OPENED) == 0) { 1065 postWindowEvent(WindowEvent.WINDOW_OPENED); 1066 state |= OPENED; 1067 } 1068 } 1069 1070 static void updateChildFocusableWindowState(Window w) { 1071 if (w.peer != null && w.isShowing()) { 1072 ((WindowPeer)w.peer).updateFocusableWindowState(); 1073 } 1074 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1075 Window child = w.ownedWindowList.elementAt(i).get(); 1076 if (child != null) { 1077 updateChildFocusableWindowState(child); 1078 } 1079 } 1080 } 1081 1082 synchronized void postWindowEvent(int id) { 1083 if (windowListener != null 1084 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1085 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1086 WindowEvent e = new WindowEvent(this, id); 1087 Toolkit.getEventQueue().postEvent(e); 1088 } 1089 } 1090 1091 /** 1092 * Hide this Window, its subcomponents, and all of its owned children. 1093 * The Window and its subcomponents can be made visible again 1094 * with a call to {@code show}. 1095 * @see #show 1096 * @see #dispose 1097 * @deprecated As of JDK version 1.5, replaced by 1098 * {@link #setVisible(boolean)}. 1099 */ 1100 @Deprecated 1101 public void hide() { 1102 synchronized(ownedWindowList) { 1103 for (int i = 0; i < ownedWindowList.size(); i++) { 1104 Window child = ownedWindowList.elementAt(i).get(); 1105 if ((child != null) && child.visible) { 1106 child.hide(); 1107 child.showWithParent = true; 1108 } 1109 } 1110 } 1111 if (isModalBlocked()) { 1112 modalBlocker.unblockWindow(this); 1113 } 1114 super.hide(); 1115 locationByPlatform = false; 1116 } 1117 1118 final void clearMostRecentFocusOwnerOnHide() { 1119 /* do nothing */ 1120 } 1121 1122 /** 1123 * Releases all of the native screen resources used by this 1124 * {@code Window}, its subcomponents, and all of its owned 1125 * children. That is, the resources for these {@code Component}s 1126 * will be destroyed, any memory they consume will be returned to the 1127 * OS, and they will be marked as undisplayable. 1128 * <p> 1129 * The {@code Window} and its subcomponents can be made displayable 1130 * again by rebuilding the native resources with a subsequent call to 1131 * {@code pack} or {@code show}. The states of the recreated 1132 * {@code Window} and its subcomponents will be identical to the 1133 * states of these objects at the point where the {@code Window} 1134 * was disposed (not accounting for additional modifications between 1135 * those actions). 1136 * <p> 1137 * <b>Note</b>: When the last displayable window 1138 * within the Java virtual machine (VM) is disposed of, the VM may 1139 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown"> 1140 * AWT Threading Issues</a> for more information. 1141 * @see Component#isDisplayable 1142 * @see #pack 1143 * @see #show 1144 */ 1145 public void dispose() { 1146 doDispose(); 1147 } 1148 1149 /* 1150 * Fix for 4872170. 1151 * If dispose() is called on parent then its children have to be disposed as well 1152 * as reported in javadoc. So we need to implement this functionality even if a 1153 * child overrides dispose() in a wrong way without calling super.dispose(). 1154 */ 1155 void disposeImpl() { 1156 dispose(); 1157 if (peer != null) { 1158 doDispose(); 1159 } 1160 } 1161 1162 void doDispose() { 1163 class DisposeAction implements Runnable { 1164 public void run() { 1165 disposing = true; 1166 try { 1167 // Check if this window is the fullscreen window for the 1168 // device. Exit the fullscreen mode prior to disposing 1169 // of the window if that's the case. 1170 GraphicsDevice gd = getGraphicsConfiguration().getDevice(); 1171 if (gd.getFullScreenWindow() == Window.this) { 1172 gd.setFullScreenWindow(null); 1173 } 1174 1175 Object[] ownedWindowArray; 1176 synchronized(ownedWindowList) { 1177 ownedWindowArray = new Object[ownedWindowList.size()]; 1178 ownedWindowList.copyInto(ownedWindowArray); 1179 } 1180 for (int i = 0; i < ownedWindowArray.length; i++) { 1181 Window child = (Window) (((WeakReference) 1182 (ownedWindowArray[i])).get()); 1183 if (child != null) { 1184 child.disposeImpl(); 1185 } 1186 } 1187 hide(); 1188 beforeFirstShow = true; 1189 removeNotify(); 1190 synchronized (inputContextLock) { 1191 if (inputContext != null) { 1192 inputContext.dispose(); 1193 inputContext = null; 1194 } 1195 } 1196 clearCurrentFocusCycleRootOnHide(); 1197 } finally { 1198 disposing = false; 1199 } 1200 } 1201 } 1202 boolean fireWindowClosedEvent = isDisplayable(); 1203 DisposeAction action = new DisposeAction(); 1204 if (EventQueue.isDispatchThread()) { 1205 action.run(); 1206 } 1207 else { 1208 try { 1209 EventQueue.invokeAndWait(this, 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 if (fireWindowClosedEvent) { 1224 postWindowEvent(WindowEvent.WINDOW_CLOSED); 1225 } 1226 } 1227 1228 /* 1229 * Should only be called while holding the tree lock. 1230 * It's overridden here because parent == owner in Window, 1231 * and we shouldn't adjust counter on owner 1232 */ 1233 void adjustListeningChildrenOnParent(long mask, int num) { 1234 } 1235 1236 // Should only be called while holding tree lock 1237 void adjustDescendantsOnParent(int num) { 1238 // do nothing since parent == owner and we shouldn't 1239 // adjust counter on owner 1240 } 1241 1242 /** 1243 * If this Window is visible, brings this Window to the front and may make 1244 * it the focused Window. 1245 * <p> 1246 * Places this Window at the top of the stacking order and shows it in 1247 * front of any other Windows in this VM. No action will take place if this 1248 * Window is not visible. Some platforms do not allow Windows which own 1249 * other Windows to appear on top of those owned Windows. Some platforms 1250 * may not permit this VM to place its Windows above windows of native 1251 * applications, or Windows of other VMs. This permission may depend on 1252 * whether a Window in this VM is already focused. Every attempt will be 1253 * made to move this Window as high as possible in the stacking order; 1254 * however, developers should not assume that this method will move this 1255 * Window above all other windows in every situation. 1256 * <p> 1257 * Developers must never assume that this Window is the focused or active 1258 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED 1259 * event. On platforms where the top-most window is the focused window, this 1260 * method will <b>probably</b> focus this Window (if it is not already focused) 1261 * under the following conditions: 1262 * <ul> 1263 * <li> The window meets the requirements outlined in the 1264 * {@link #isFocusableWindow} method. 1265 * <li> The window's property {@code autoRequestFocus} is of the 1266 * {@code true} value. 1267 * <li> Native windowing system allows the window to get focused. 1268 * </ul> 1269 * On platforms where the stacking order does not typically affect the focused 1270 * window, this method will <b>probably</b> leave the focused and active 1271 * Windows unchanged. 1272 * <p> 1273 * If this method causes this Window to be focused, and this Window is a 1274 * Frame or a Dialog, it will also become activated. If this Window is 1275 * focused, but it is not a Frame or a Dialog, then the first Frame or 1276 * Dialog that is an owner of this Window will be activated. 1277 * <p> 1278 * If this window is blocked by modal dialog, then the blocking dialog 1279 * is brought to the front and remains above the blocked window. 1280 * 1281 * @see #toBack 1282 * @see #setAutoRequestFocus 1283 * @see #isFocusableWindow 1284 */ 1285 public void toFront() { 1286 toFront_NoClientCode(); 1287 } 1288 1289 // This functionality is implemented in a final package-private method 1290 // to insure that it cannot be overridden by client subclasses. 1291 final void toFront_NoClientCode() { 1292 if (visible) { 1293 WindowPeer peer = (WindowPeer)this.peer; 1294 if (peer != null) { 1295 peer.toFront(); 1296 } 1297 if (isModalBlocked()) { 1298 modalBlocker.toFront_NoClientCode(); 1299 } 1300 } 1301 } 1302 1303 /** 1304 * If this Window is visible, sends this Window to the back and may cause 1305 * it to lose focus or activation if it is the focused or active Window. 1306 * <p> 1307 * Places this Window at the bottom of the stacking order and shows it 1308 * behind any other Windows in this VM. No action will take place is this 1309 * Window is not visible. Some platforms do not allow Windows which are 1310 * owned by other Windows to appear below their owners. Every attempt will 1311 * be made to move this Window as low as possible in the stacking order; 1312 * however, developers should not assume that this method will move this 1313 * Window below all other windows in every situation. 1314 * <p> 1315 * Because of variations in native windowing systems, no guarantees about 1316 * changes to the focused and active Windows can be made. Developers must 1317 * never assume that this Window is no longer the focused or active Window 1318 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED 1319 * event. On platforms where the top-most window is the focused window, 1320 * this method will <b>probably</b> cause this Window to lose focus. In 1321 * that case, the next highest, focusable Window in this VM will receive 1322 * focus. On platforms where the stacking order does not typically affect 1323 * the focused window, this method will <b>probably</b> leave the focused 1324 * and active Windows unchanged. 1325 * 1326 * @see #toFront 1327 */ 1328 public void toBack() { 1329 toBack_NoClientCode(); 1330 } 1331 1332 // This functionality is implemented in a final package-private method 1333 // to insure that it cannot be overridden by client subclasses. 1334 final void toBack_NoClientCode() { 1335 if(isAlwaysOnTop()) { 1336 try { 1337 setAlwaysOnTop(false); 1338 }catch(SecurityException e) { 1339 } 1340 } 1341 if (visible) { 1342 WindowPeer peer = (WindowPeer)this.peer; 1343 if (peer != null) { 1344 peer.toBack(); 1345 } 1346 } 1347 } 1348 1349 /** 1350 * Returns the toolkit of this frame. 1351 * @return the toolkit of this window. 1352 * @see Toolkit 1353 * @see Toolkit#getDefaultToolkit 1354 * @see Component#getToolkit 1355 */ 1356 public Toolkit getToolkit() { 1357 return Toolkit.getDefaultToolkit(); 1358 } 1359 1360 /** 1361 * Gets the warning string that is displayed with this window. 1362 * If this window is insecure, the warning string is displayed 1363 * somewhere in the visible area of the window. A window is 1364 * insecure if there is a security manager and the security 1365 * manager denies 1366 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 1367 * <p> 1368 * If the window is secure, then {@code getWarningString} 1369 * returns {@code null}. If the window is insecure, this 1370 * method checks for the system property 1371 * {@code awt.appletWarning} 1372 * and returns the string value of that property. 1373 * @return the warning string for this window. 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 try { 1384 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION); 1385 } catch (SecurityException se) { 1386 // make sure the privileged action is only 1387 // for getting the property! We don't want the 1388 // above checkPermission call to always succeed! 1389 warningString = AccessController.doPrivileged( 1390 new GetPropertyAction("awt.appletWarning", 1391 "Java Applet Window")); 1392 } 1393 } 1394 } 1395 1396 /** 1397 * Gets the {@code Locale} object that is associated 1398 * with this window, if the locale has been set. 1399 * If no locale has been set, then the default locale 1400 * is returned. 1401 * @return the locale that is set for this window. 1402 * @see java.util.Locale 1403 * @since 1.1 1404 */ 1405 public Locale getLocale() { 1406 if (this.locale == null) { 1407 return Locale.getDefault(); 1408 } 1409 return this.locale; 1410 } 1411 1412 /** 1413 * Gets the input context for this window. A window always has an input context, 1414 * which is shared by subcomponents unless they create and set their own. 1415 * @see Component#getInputContext 1416 * @since 1.2 1417 */ 1418 public InputContext getInputContext() { 1419 synchronized (inputContextLock) { 1420 if (inputContext == null) { 1421 inputContext = InputContext.getInstance(); 1422 } 1423 } 1424 return inputContext; 1425 } 1426 1427 /** 1428 * Set the cursor image to a specified cursor. 1429 * <p> 1430 * The method may have no visual effect if the Java platform 1431 * implementation and/or the native system do not support 1432 * changing the mouse cursor shape. 1433 * @param cursor One of the constants defined 1434 * by the {@code Cursor} class. If this parameter is null 1435 * then the cursor for this window will be set to the type 1436 * Cursor.DEFAULT_CURSOR. 1437 * @see Component#getCursor 1438 * @see Cursor 1439 * @since 1.1 1440 */ 1441 public void setCursor(Cursor cursor) { 1442 if (cursor == null) { 1443 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 1444 } 1445 super.setCursor(cursor); 1446 } 1447 1448 /** 1449 * Returns the owner of this window. 1450 * 1451 * @return the owner of this window 1452 * @since 1.2 1453 */ 1454 public Window getOwner() { 1455 return getOwner_NoClientCode(); 1456 } 1457 final Window getOwner_NoClientCode() { 1458 return (Window)parent; 1459 } 1460 1461 /** 1462 * Return an array containing all the windows this 1463 * window currently owns. 1464 * 1465 * @return the array of all the owned windows 1466 * @since 1.2 1467 */ 1468 public Window[] getOwnedWindows() { 1469 return getOwnedWindows_NoClientCode(); 1470 } 1471 final Window[] getOwnedWindows_NoClientCode() { 1472 Window realCopy[]; 1473 1474 synchronized(ownedWindowList) { 1475 // Recall that ownedWindowList is actually a Vector of 1476 // WeakReferences and calling get() on one of these references 1477 // may return null. Make two arrays-- one the size of the 1478 // Vector (fullCopy with size fullSize), and one the size of 1479 // all non-null get()s (realCopy with size realSize). 1480 int fullSize = ownedWindowList.size(); 1481 int realSize = 0; 1482 Window fullCopy[] = new Window[fullSize]; 1483 1484 for (int i = 0; i < fullSize; i++) { 1485 fullCopy[realSize] = ownedWindowList.elementAt(i).get(); 1486 1487 if (fullCopy[realSize] != null) { 1488 realSize++; 1489 } 1490 } 1491 1492 if (fullSize != realSize) { 1493 realCopy = Arrays.copyOf(fullCopy, realSize); 1494 } else { 1495 realCopy = fullCopy; 1496 } 1497 } 1498 1499 return realCopy; 1500 } 1501 1502 boolean isModalBlocked() { 1503 return modalBlocker != null; 1504 } 1505 1506 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) { 1507 this.modalBlocker = blocked ? blocker : null; 1508 if (peerCall) { 1509 WindowPeer peer = (WindowPeer)this.peer; 1510 if (peer != null) { 1511 peer.setModalBlocked(blocker, blocked); 1512 } 1513 } 1514 } 1515 1516 Dialog getModalBlocker() { 1517 return modalBlocker; 1518 } 1519 1520 /* 1521 * Returns a list of all displayable Windows, i. e. all the 1522 * Windows which peer is not null. 1523 * 1524 * @see #addNotify 1525 * @see #removeNotify 1526 */ 1527 static IdentityArrayList<Window> getAllWindows() { 1528 synchronized (allWindows) { 1529 IdentityArrayList<Window> v = new IdentityArrayList<Window>(); 1530 v.addAll(allWindows); 1531 return v; 1532 } 1533 } 1534 1535 static IdentityArrayList<Window> getAllUnblockedWindows() { 1536 synchronized (allWindows) { 1537 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>(); 1538 for (int i = 0; i < allWindows.size(); i++) { 1539 Window w = allWindows.get(i); 1540 if (!w.isModalBlocked()) { 1541 unblocked.add(w); 1542 } 1543 } 1544 return unblocked; 1545 } 1546 } 1547 1548 private static Window[] getWindows(AppContext appContext) { 1549 synchronized (Window.class) { 1550 Window realCopy[]; 1551 @SuppressWarnings("unchecked") 1552 Vector<WeakReference<Window>> windowList = 1553 (Vector<WeakReference<Window>>)appContext.get(Window.class); 1554 if (windowList != null) { 1555 int fullSize = windowList.size(); 1556 int realSize = 0; 1557 Window fullCopy[] = new Window[fullSize]; 1558 for (int i = 0; i < fullSize; i++) { 1559 Window w = windowList.get(i).get(); 1560 if (w != null) { 1561 fullCopy[realSize++] = w; 1562 } 1563 } 1564 if (fullSize != realSize) { 1565 realCopy = Arrays.copyOf(fullCopy, realSize); 1566 } else { 1567 realCopy = fullCopy; 1568 } 1569 } else { 1570 realCopy = new Window[0]; 1571 } 1572 return realCopy; 1573 } 1574 } 1575 1576 /** 1577 * Returns an array of all {@code Window}s, both owned and ownerless, 1578 * created by this application. 1579 * If called from an applet, the array includes only the {@code Window}s 1580 * accessible by that applet. 1581 * <p> 1582 * <b>Warning:</b> this method may return system created windows, such 1583 * as a print dialog. Applications should not assume the existence of 1584 * these dialogs, nor should an application assume anything about these 1585 * dialogs such as component positions, {@code LayoutManager}s 1586 * or serialization. 1587 * 1588 * @return the array of all the {@code Window}s created by the application 1589 * @see Frame#getFrames 1590 * @see Window#getOwnerlessWindows 1591 * 1592 * @since 1.6 1593 */ 1594 public static Window[] getWindows() { 1595 return getWindows(AppContext.getAppContext()); 1596 } 1597 1598 /** 1599 * Returns an array of all {@code Window}s created by this application 1600 * that have no owner. They include {@code Frame}s and ownerless 1601 * {@code Dialog}s and {@code Window}s. 1602 * If called from an applet, the array includes only the {@code Window}s 1603 * accessible by that applet. 1604 * <p> 1605 * <b>Warning:</b> this method may return system created windows, such 1606 * as a print dialog. Applications should not assume the existence of 1607 * these dialogs, nor should an application assume anything about these 1608 * dialogs such as component positions, {@code LayoutManager}s 1609 * or serialization. 1610 * 1611 * @return the array of all the ownerless {@code Window}s 1612 * created by this application 1613 * @see Frame#getFrames 1614 * @see Window#getWindows() 1615 * 1616 * @since 1.6 1617 */ 1618 public static Window[] getOwnerlessWindows() { 1619 Window[] allWindows = Window.getWindows(); 1620 1621 int ownerlessCount = 0; 1622 for (Window w : allWindows) { 1623 if (w.getOwner() == null) { 1624 ownerlessCount++; 1625 } 1626 } 1627 1628 Window[] ownerless = new Window[ownerlessCount]; 1629 int c = 0; 1630 for (Window w : allWindows) { 1631 if (w.getOwner() == null) { 1632 ownerless[c++] = w; 1633 } 1634 } 1635 1636 return ownerless; 1637 } 1638 1639 Window getDocumentRoot() { 1640 synchronized (getTreeLock()) { 1641 Window w = this; 1642 while (w.getOwner() != null) { 1643 w = w.getOwner(); 1644 } 1645 return w; 1646 } 1647 } 1648 1649 /** 1650 * Specifies the modal exclusion type for this window. If a window is modal 1651 * excluded, it is not blocked by some modal dialogs. See {@link 1652 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for 1653 * possible modal exclusion types. 1654 * <p> 1655 * If the given type is not supported, {@code NO_EXCLUDE} is used. 1656 * <p> 1657 * Note: changing the modal exclusion type for a visible window may have no 1658 * effect until it is hidden and then shown again. 1659 * 1660 * @param exclusionType the modal exclusion type for this window; a {@code null} 1661 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE 1662 * NO_EXCLUDE} 1663 * @throws SecurityException if the calling thread does not have permission 1664 * to set the modal exclusion property to the window with the given 1665 * {@code exclusionType} 1666 * @see java.awt.Dialog.ModalExclusionType 1667 * @see java.awt.Window#getModalExclusionType 1668 * @see java.awt.Toolkit#isModalExclusionTypeSupported 1669 * 1670 * @since 1.6 1671 */ 1672 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) { 1673 if (exclusionType == null) { 1674 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1675 } 1676 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) { 1677 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1678 } 1679 if (modalExclusionType == exclusionType) { 1680 return; 1681 } 1682 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) { 1683 SecurityManager sm = System.getSecurityManager(); 1684 if (sm != null) { 1685 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION); 1686 } 1687 } 1688 modalExclusionType = exclusionType; 1689 1690 // if we want on-fly changes, we need to uncomment the lines below 1691 // and override the method in Dialog to use modalShow() instead 1692 // of updateChildrenBlocking() 1693 /* 1694 if (isModalBlocked()) { 1695 modalBlocker.unblockWindow(this); 1696 } 1697 Dialog.checkShouldBeBlocked(this); 1698 updateChildrenBlocking(); 1699 */ 1700 } 1701 1702 /** 1703 * Returns the modal exclusion type of this window. 1704 * 1705 * @return the modal exclusion type of this window 1706 * 1707 * @see java.awt.Dialog.ModalExclusionType 1708 * @see java.awt.Window#setModalExclusionType 1709 * 1710 * @since 1.6 1711 */ 1712 public Dialog.ModalExclusionType getModalExclusionType() { 1713 return modalExclusionType; 1714 } 1715 1716 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) { 1717 if ((modalExclusionType != null) && 1718 modalExclusionType.compareTo(exclusionType) >= 0) 1719 { 1720 return true; 1721 } 1722 Window owner = getOwner_NoClientCode(); 1723 return (owner != null) && owner.isModalExcluded(exclusionType); 1724 } 1725 1726 void updateChildrenBlocking() { 1727 Vector<Window> childHierarchy = new Vector<Window>(); 1728 Window[] ownedWindows = getOwnedWindows(); 1729 for (int i = 0; i < ownedWindows.length; i++) { 1730 childHierarchy.add(ownedWindows[i]); 1731 } 1732 int k = 0; 1733 while (k < childHierarchy.size()) { 1734 Window w = childHierarchy.get(k); 1735 if (w.isVisible()) { 1736 if (w.isModalBlocked()) { 1737 Dialog blocker = w.getModalBlocker(); 1738 blocker.unblockWindow(w); 1739 } 1740 Dialog.checkShouldBeBlocked(w); 1741 Window[] wOwned = w.getOwnedWindows(); 1742 for (int j = 0; j < wOwned.length; j++) { 1743 childHierarchy.add(wOwned[j]); 1744 } 1745 } 1746 k++; 1747 } 1748 } 1749 1750 /** 1751 * Adds the specified window listener to receive window events from 1752 * this window. 1753 * If l is null, no exception is thrown and no action is performed. 1754 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1755 * >AWT Threading Issues</a> for details on AWT's threading model. 1756 * 1757 * @param l the window listener 1758 * @see #removeWindowListener 1759 * @see #getWindowListeners 1760 */ 1761 public synchronized void addWindowListener(WindowListener l) { 1762 if (l == null) { 1763 return; 1764 } 1765 newEventsOnly = true; 1766 windowListener = AWTEventMulticaster.add(windowListener, l); 1767 } 1768 1769 /** 1770 * Adds the specified window state listener to receive window 1771 * events from this window. If {@code l} is {@code null}, 1772 * no exception is thrown and no action is performed. 1773 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1774 * >AWT Threading Issues</a> for details on AWT's threading model. 1775 * 1776 * @param l the window state listener 1777 * @see #removeWindowStateListener 1778 * @see #getWindowStateListeners 1779 * @since 1.4 1780 */ 1781 public synchronized void addWindowStateListener(WindowStateListener l) { 1782 if (l == null) { 1783 return; 1784 } 1785 windowStateListener = AWTEventMulticaster.add(windowStateListener, l); 1786 newEventsOnly = true; 1787 } 1788 1789 /** 1790 * Adds the specified window focus listener to receive window events 1791 * from this window. 1792 * If l is null, no exception is thrown and no action is performed. 1793 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1794 * >AWT Threading Issues</a> for details on AWT's threading model. 1795 * 1796 * @param l the window focus listener 1797 * @see #removeWindowFocusListener 1798 * @see #getWindowFocusListeners 1799 * @since 1.4 1800 */ 1801 public synchronized void addWindowFocusListener(WindowFocusListener l) { 1802 if (l == null) { 1803 return; 1804 } 1805 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l); 1806 newEventsOnly = true; 1807 } 1808 1809 /** 1810 * Removes the specified window listener so that it no longer 1811 * receives window events from this window. 1812 * If l is null, no exception is thrown and no action is performed. 1813 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1814 * >AWT Threading Issues</a> for details on AWT's threading model. 1815 * 1816 * @param l the window listener 1817 * @see #addWindowListener 1818 * @see #getWindowListeners 1819 */ 1820 public synchronized void removeWindowListener(WindowListener l) { 1821 if (l == null) { 1822 return; 1823 } 1824 windowListener = AWTEventMulticaster.remove(windowListener, l); 1825 } 1826 1827 /** 1828 * Removes the specified window state listener so that it no 1829 * longer receives window events from this window. If 1830 * {@code l} is {@code null}, no exception is thrown and 1831 * no action is performed. 1832 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1833 * >AWT Threading Issues</a> for details on AWT's threading model. 1834 * 1835 * @param l the window state listener 1836 * @see #addWindowStateListener 1837 * @see #getWindowStateListeners 1838 * @since 1.4 1839 */ 1840 public synchronized void removeWindowStateListener(WindowStateListener l) { 1841 if (l == null) { 1842 return; 1843 } 1844 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l); 1845 } 1846 1847 /** 1848 * Removes the specified window focus listener so that it no longer 1849 * receives window events from this window. 1850 * If l is null, no exception is thrown and no action is performed. 1851 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1852 * >AWT Threading Issues</a> for details on AWT's threading model. 1853 * 1854 * @param l the window focus listener 1855 * @see #addWindowFocusListener 1856 * @see #getWindowFocusListeners 1857 * @since 1.4 1858 */ 1859 public synchronized void removeWindowFocusListener(WindowFocusListener l) { 1860 if (l == null) { 1861 return; 1862 } 1863 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l); 1864 } 1865 1866 /** 1867 * Returns an array of all the window listeners 1868 * registered on this window. 1869 * 1870 * @return all of this window's {@code WindowListener}s 1871 * or an empty array if no window 1872 * listeners are currently registered 1873 * 1874 * @see #addWindowListener 1875 * @see #removeWindowListener 1876 * @since 1.4 1877 */ 1878 public synchronized WindowListener[] getWindowListeners() { 1879 return getListeners(WindowListener.class); 1880 } 1881 1882 /** 1883 * Returns an array of all the window focus listeners 1884 * registered on this window. 1885 * 1886 * @return all of this window's {@code WindowFocusListener}s 1887 * or an empty array if no window focus 1888 * listeners are currently registered 1889 * 1890 * @see #addWindowFocusListener 1891 * @see #removeWindowFocusListener 1892 * @since 1.4 1893 */ 1894 public synchronized WindowFocusListener[] getWindowFocusListeners() { 1895 return getListeners(WindowFocusListener.class); 1896 } 1897 1898 /** 1899 * Returns an array of all the window state listeners 1900 * registered on this window. 1901 * 1902 * @return all of this window's {@code WindowStateListener}s 1903 * or an empty array if no window state 1904 * listeners are currently registered 1905 * 1906 * @see #addWindowStateListener 1907 * @see #removeWindowStateListener 1908 * @since 1.4 1909 */ 1910 public synchronized WindowStateListener[] getWindowStateListeners() { 1911 return getListeners(WindowStateListener.class); 1912 } 1913 1914 1915 /** 1916 * Returns an array of all the objects currently registered 1917 * as <code><em>Foo</em>Listener</code>s 1918 * upon this {@code Window}. 1919 * <code><em>Foo</em>Listener</code>s are registered using the 1920 * <code>add<em>Foo</em>Listener</code> method. 1921 * 1922 * <p> 1923 * 1924 * You can specify the {@code listenerType} argument 1925 * with a class literal, such as 1926 * <code><em>Foo</em>Listener.class</code>. 1927 * For example, you can query a 1928 * {@code Window w} 1929 * for its window listeners with the following code: 1930 * 1931 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre> 1932 * 1933 * If no such listeners exist, this method returns an empty array. 1934 * 1935 * @param listenerType the type of listeners requested; this parameter 1936 * should specify an interface that descends from 1937 * {@code java.util.EventListener} 1938 * @return an array of all objects registered as 1939 * <code><em>Foo</em>Listener</code>s on this window, 1940 * or an empty array if no such 1941 * listeners have been added 1942 * @exception ClassCastException if {@code listenerType} 1943 * doesn't specify a class or interface that implements 1944 * {@code java.util.EventListener} 1945 * @exception NullPointerException if {@code listenerType} is {@code null} 1946 * 1947 * @see #getWindowListeners 1948 * @since 1.3 1949 */ 1950 public <T extends EventListener> T[] getListeners(Class<T> listenerType) { 1951 EventListener l = null; 1952 if (listenerType == WindowFocusListener.class) { 1953 l = windowFocusListener; 1954 } else if (listenerType == WindowStateListener.class) { 1955 l = windowStateListener; 1956 } else if (listenerType == WindowListener.class) { 1957 l = windowListener; 1958 } else { 1959 return super.getListeners(listenerType); 1960 } 1961 return AWTEventMulticaster.getListeners(l, listenerType); 1962 } 1963 1964 // REMIND: remove when filtering is handled at lower level 1965 boolean eventEnabled(AWTEvent e) { 1966 switch(e.id) { 1967 case WindowEvent.WINDOW_OPENED: 1968 case WindowEvent.WINDOW_CLOSING: 1969 case WindowEvent.WINDOW_CLOSED: 1970 case WindowEvent.WINDOW_ICONIFIED: 1971 case WindowEvent.WINDOW_DEICONIFIED: 1972 case WindowEvent.WINDOW_ACTIVATED: 1973 case WindowEvent.WINDOW_DEACTIVATED: 1974 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 || 1975 windowListener != null) { 1976 return true; 1977 } 1978 return false; 1979 case WindowEvent.WINDOW_GAINED_FOCUS: 1980 case WindowEvent.WINDOW_LOST_FOCUS: 1981 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 || 1982 windowFocusListener != null) { 1983 return true; 1984 } 1985 return false; 1986 case WindowEvent.WINDOW_STATE_CHANGED: 1987 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 || 1988 windowStateListener != null) { 1989 return true; 1990 } 1991 return false; 1992 default: 1993 break; 1994 } 1995 return super.eventEnabled(e); 1996 } 1997 1998 /** 1999 * Processes events on this window. If the event is an 2000 * {@code WindowEvent}, it invokes the 2001 * {@code processWindowEvent} method, else it invokes its 2002 * superclass's {@code processEvent}. 2003 * <p>Note that if the event parameter is {@code null} 2004 * the behavior is unspecified and may result in an 2005 * exception. 2006 * 2007 * @param e the event 2008 */ 2009 protected void processEvent(AWTEvent e) { 2010 if (e instanceof WindowEvent) { 2011 switch (e.getID()) { 2012 case WindowEvent.WINDOW_OPENED: 2013 case WindowEvent.WINDOW_CLOSING: 2014 case WindowEvent.WINDOW_CLOSED: 2015 case WindowEvent.WINDOW_ICONIFIED: 2016 case WindowEvent.WINDOW_DEICONIFIED: 2017 case WindowEvent.WINDOW_ACTIVATED: 2018 case WindowEvent.WINDOW_DEACTIVATED: 2019 processWindowEvent((WindowEvent)e); 2020 break; 2021 case WindowEvent.WINDOW_GAINED_FOCUS: 2022 case WindowEvent.WINDOW_LOST_FOCUS: 2023 processWindowFocusEvent((WindowEvent)e); 2024 break; 2025 case WindowEvent.WINDOW_STATE_CHANGED: 2026 processWindowStateEvent((WindowEvent)e); 2027 break; 2028 } 2029 return; 2030 } 2031 super.processEvent(e); 2032 } 2033 2034 /** 2035 * Processes window events occurring on this window by 2036 * dispatching them to any registered WindowListener objects. 2037 * NOTE: This method will not be called unless window events 2038 * are enabled for this component; this happens when one of the 2039 * following occurs: 2040 * <ul> 2041 * <li>A WindowListener object is registered via 2042 * {@code addWindowListener} 2043 * <li>Window events are enabled via {@code enableEvents} 2044 * </ul> 2045 * <p>Note that if the event parameter is {@code null} 2046 * the behavior is unspecified and may result in an 2047 * exception. 2048 * 2049 * @param e the window event 2050 * @see Component#enableEvents 2051 */ 2052 protected void processWindowEvent(WindowEvent e) { 2053 WindowListener listener = windowListener; 2054 if (listener != null) { 2055 switch(e.getID()) { 2056 case WindowEvent.WINDOW_OPENED: 2057 listener.windowOpened(e); 2058 break; 2059 case WindowEvent.WINDOW_CLOSING: 2060 listener.windowClosing(e); 2061 break; 2062 case WindowEvent.WINDOW_CLOSED: 2063 listener.windowClosed(e); 2064 break; 2065 case WindowEvent.WINDOW_ICONIFIED: 2066 listener.windowIconified(e); 2067 break; 2068 case WindowEvent.WINDOW_DEICONIFIED: 2069 listener.windowDeiconified(e); 2070 break; 2071 case WindowEvent.WINDOW_ACTIVATED: 2072 listener.windowActivated(e); 2073 break; 2074 case WindowEvent.WINDOW_DEACTIVATED: 2075 listener.windowDeactivated(e); 2076 break; 2077 default: 2078 break; 2079 } 2080 } 2081 } 2082 2083 /** 2084 * Processes window focus event occurring on this window by 2085 * dispatching them to any registered WindowFocusListener objects. 2086 * NOTE: this method will not be called unless window focus events 2087 * are enabled for this window. This happens when one of the 2088 * following occurs: 2089 * <ul> 2090 * <li>a WindowFocusListener is registered via 2091 * {@code addWindowFocusListener} 2092 * <li>Window focus events are enabled via {@code enableEvents} 2093 * </ul> 2094 * <p>Note that if the event parameter is {@code null} 2095 * the behavior is unspecified and may result in an 2096 * exception. 2097 * 2098 * @param e the window focus event 2099 * @see Component#enableEvents 2100 * @since 1.4 2101 */ 2102 protected void processWindowFocusEvent(WindowEvent e) { 2103 WindowFocusListener listener = windowFocusListener; 2104 if (listener != null) { 2105 switch (e.getID()) { 2106 case WindowEvent.WINDOW_GAINED_FOCUS: 2107 listener.windowGainedFocus(e); 2108 break; 2109 case WindowEvent.WINDOW_LOST_FOCUS: 2110 listener.windowLostFocus(e); 2111 break; 2112 default: 2113 break; 2114 } 2115 } 2116 } 2117 2118 /** 2119 * Processes window state event occurring on this window by 2120 * dispatching them to any registered {@code WindowStateListener} 2121 * objects. 2122 * NOTE: this method will not be called unless window state events 2123 * are enabled for this window. This happens when one of the 2124 * following occurs: 2125 * <ul> 2126 * <li>a {@code WindowStateListener} is registered via 2127 * {@code addWindowStateListener} 2128 * <li>window state events are enabled via {@code enableEvents} 2129 * </ul> 2130 * <p>Note that if the event parameter is {@code null} 2131 * the behavior is unspecified and may result in an 2132 * exception. 2133 * 2134 * @param e the window state event 2135 * @see java.awt.Component#enableEvents 2136 * @since 1.4 2137 */ 2138 protected void processWindowStateEvent(WindowEvent e) { 2139 WindowStateListener listener = windowStateListener; 2140 if (listener != null) { 2141 switch (e.getID()) { 2142 case WindowEvent.WINDOW_STATE_CHANGED: 2143 listener.windowStateChanged(e); 2144 break; 2145 default: 2146 break; 2147 } 2148 } 2149 } 2150 2151 /** 2152 * Implements a debugging hook -- checks to see if 2153 * the user has typed <i>control-shift-F1</i>. If so, 2154 * the list of child windows is dumped to {@code System.out}. 2155 * @param e the keyboard event 2156 */ 2157 void preProcessKeyEvent(KeyEvent e) { 2158 // Dump the list of child windows to System.out if debug is enabled. 2159 if (DebugSettings.getInstance().getBoolean("on", false)) { 2160 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 && 2161 e.isControlDown() && e.isShiftDown() && 2162 e.getID() == KeyEvent.KEY_PRESSED) { 2163 list(System.out, 0); 2164 } 2165 } 2166 } 2167 2168 void postProcessKeyEvent(KeyEvent e) { 2169 // Do nothing 2170 } 2171 2172 2173 /** 2174 * Sets whether this window should always be above other windows. If 2175 * there are multiple always-on-top windows, their relative order is 2176 * unspecified and platform dependent. 2177 * <p> 2178 * If some other window is already always-on-top then the 2179 * relative order between these windows is unspecified (depends on 2180 * platform). No window can be brought to be over the always-on-top 2181 * window except maybe another always-on-top window. 2182 * <p> 2183 * All windows owned by an always-on-top window inherit this state and 2184 * automatically become always-on-top. If a window ceases to be 2185 * always-on-top, the windows that it owns will no longer be 2186 * always-on-top. When an always-on-top window is sent {@link #toBack 2187 * toBack}, its always-on-top state is set to {@code false}. 2188 * 2189 * <p> When this method is called on a window with a value of 2190 * {@code true}, and the window is visible and the platform 2191 * supports always-on-top for this window, the window is immediately 2192 * brought forward, "sticking" it in the top-most position. If the 2193 * window isn`t currently visible, this method sets the always-on-top 2194 * state to {@code true} but does not bring the window forward. 2195 * When the window is later shown, it will be always-on-top. 2196 * 2197 * <p> When this method is called on a window with a value of 2198 * {@code false} the always-on-top state is set to normal. It may also 2199 * cause an unspecified, platform-dependent change in the z-order of 2200 * top-level windows, but other always-on-top windows will remain in 2201 * top-most position. Calling this method with a value of {@code false} 2202 * on a window that has a normal state has no effect. 2203 * 2204 * <p><b>Note</b>: some platforms might not support always-on-top 2205 * windows. To detect if always-on-top windows are supported by the 2206 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and 2207 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode 2208 * isn't supported for this window or this window's toolkit does not 2209 * support always-on-top windows, calling this method has no effect. 2210 * <p> 2211 * If a SecurityManager is installed, the calling thread must be 2212 * granted the AWTPermission "setWindowAlwaysOnTop" in 2213 * order to set the value of this property. If this 2214 * permission is not granted, this method will throw a 2215 * SecurityException, and the current value of the property will 2216 * be left unchanged. 2217 * 2218 * @param alwaysOnTop true if the window should always be above other 2219 * windows 2220 * @throws SecurityException if the calling thread does not have 2221 * permission to set the value of always-on-top property 2222 * 2223 * @see #isAlwaysOnTop 2224 * @see #toFront 2225 * @see #toBack 2226 * @see AWTPermission 2227 * @see #isAlwaysOnTopSupported 2228 * @see #getToolkit 2229 * @see Toolkit#isAlwaysOnTopSupported 2230 * @since 1.5 2231 */ 2232 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException { 2233 SecurityManager security = System.getSecurityManager(); 2234 if (security != null) { 2235 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION); 2236 } 2237 2238 boolean oldAlwaysOnTop; 2239 synchronized(this) { 2240 oldAlwaysOnTop = this.alwaysOnTop; 2241 this.alwaysOnTop = alwaysOnTop; 2242 } 2243 if (oldAlwaysOnTop != alwaysOnTop ) { 2244 if (isAlwaysOnTopSupported()) { 2245 WindowPeer peer = (WindowPeer)this.peer; 2246 synchronized(getTreeLock()) { 2247 if (peer != null) { 2248 peer.updateAlwaysOnTopState(); 2249 } 2250 } 2251 } 2252 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop); 2253 } 2254 setOwnedWindowsAlwaysOnTop(alwaysOnTop); 2255 } 2256 2257 @SuppressWarnings({"rawtypes", "unchecked"}) 2258 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) { 2259 WeakReference<Window>[] ownedWindowArray; 2260 synchronized (ownedWindowList) { 2261 ownedWindowArray = new WeakReference[ownedWindowList.size()]; 2262 ownedWindowList.copyInto(ownedWindowArray); 2263 } 2264 2265 for (WeakReference<Window> ref : ownedWindowArray) { 2266 Window window = ref.get(); 2267 if (window != null) { 2268 try { 2269 window.setAlwaysOnTop(alwaysOnTop); 2270 } catch (SecurityException ignore) { 2271 } 2272 } 2273 } 2274 } 2275 2276 /** 2277 * Returns whether the always-on-top mode is supported for this 2278 * window. Some platforms may not support always-on-top windows, some 2279 * may support only some kinds of top-level windows; for example, 2280 * a platform may not support always-on-top modal dialogs. 2281 * 2282 * @return {@code true}, if the always-on-top mode is supported for 2283 * this window and this window's toolkit supports always-on-top windows, 2284 * {@code false} otherwise 2285 * 2286 * @see #setAlwaysOnTop(boolean) 2287 * @see #getToolkit 2288 * @see Toolkit#isAlwaysOnTopSupported 2289 * @since 1.6 2290 */ 2291 public boolean isAlwaysOnTopSupported() { 2292 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported(); 2293 } 2294 2295 2296 /** 2297 * Returns whether this window is an always-on-top window. 2298 * @return {@code true}, if the window is in always-on-top state, 2299 * {@code false} otherwise 2300 * @see #setAlwaysOnTop 2301 * @since 1.5 2302 */ 2303 public final boolean isAlwaysOnTop() { 2304 return alwaysOnTop; 2305 } 2306 2307 2308 /** 2309 * Returns the child Component of this Window that has focus if this Window 2310 * is focused; returns null otherwise. 2311 * 2312 * @return the child Component with focus, or null if this Window is not 2313 * focused 2314 * @see #getMostRecentFocusOwner 2315 * @see #isFocused 2316 */ 2317 public Component getFocusOwner() { 2318 return (isFocused()) 2319 ? KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2320 getFocusOwner() 2321 : null; 2322 } 2323 2324 /** 2325 * Returns the child Component of this Window that will receive the focus 2326 * when this Window is focused. If this Window is currently focused, this 2327 * method returns the same Component as {@code getFocusOwner()}. If 2328 * this Window is not focused, then the child Component that most recently 2329 * requested focus will be returned. If no child Component has ever 2330 * requested focus, and this is a focusable Window, then this Window's 2331 * initial focusable Component is returned. If no child Component has ever 2332 * requested focus, and this is a non-focusable Window, null is returned. 2333 * 2334 * @return the child Component that will receive focus when this Window is 2335 * focused 2336 * @see #getFocusOwner 2337 * @see #isFocused 2338 * @see #isFocusableWindow 2339 * @since 1.4 2340 */ 2341 public Component getMostRecentFocusOwner() { 2342 if (isFocused()) { 2343 return getFocusOwner(); 2344 } else { 2345 Component mostRecent = 2346 KeyboardFocusManager.getMostRecentFocusOwner(this); 2347 if (mostRecent != null) { 2348 return mostRecent; 2349 } else { 2350 return (isFocusableWindow()) 2351 ? getFocusTraversalPolicy().getInitialComponent(this) 2352 : null; 2353 } 2354 } 2355 } 2356 2357 /** 2358 * Returns whether this Window is active. Only a Frame or a Dialog may be 2359 * active. The native windowing system may denote the active Window or its 2360 * children with special decorations, such as a highlighted title bar. The 2361 * active Window is always either the focused Window, or the first Frame or 2362 * Dialog that is an owner of the focused Window. 2363 * 2364 * @return whether this is the active Window. 2365 * @see #isFocused 2366 * @since 1.4 2367 */ 2368 public boolean isActive() { 2369 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2370 getActiveWindow() == this); 2371 } 2372 2373 /** 2374 * Returns whether this Window is focused. If there exists a focus owner, 2375 * the focused Window is the Window that is, or contains, that focus owner. 2376 * If there is no focus owner, then no Window is focused. 2377 * <p> 2378 * If the focused Window is a Frame or a Dialog it is also the active 2379 * Window. Otherwise, the active Window is the first Frame or Dialog that 2380 * is an owner of the focused Window. 2381 * 2382 * @return whether this is the focused Window. 2383 * @see #isActive 2384 * @since 1.4 2385 */ 2386 public boolean isFocused() { 2387 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2388 getGlobalFocusedWindow() == this); 2389 } 2390 2391 /** 2392 * Gets a focus traversal key for this Window. (See {@code 2393 * setFocusTraversalKeys} for a full description of each key.) 2394 * <p> 2395 * If the traversal key has not been explicitly set for this Window, 2396 * then this Window's parent's traversal key is returned. If the 2397 * traversal key has not been explicitly set for any of this Window's 2398 * ancestors, then the current KeyboardFocusManager's default traversal key 2399 * is returned. 2400 * 2401 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2402 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2403 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2404 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2405 * @return the AWTKeyStroke for the specified key 2406 * @see Container#setFocusTraversalKeys 2407 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS 2408 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS 2409 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS 2410 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS 2411 * @throws IllegalArgumentException if id is not one of 2412 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2413 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2414 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2415 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2416 * @since 1.4 2417 */ 2418 @SuppressWarnings("unchecked") 2419 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) { 2420 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) { 2421 throw new IllegalArgumentException("invalid focus traversal key identifier"); 2422 } 2423 2424 // Okay to return Set directly because it is an unmodifiable view 2425 @SuppressWarnings("rawtypes") 2426 Set keystrokes = (focusTraversalKeys != null) 2427 ? focusTraversalKeys[id] 2428 : null; 2429 2430 if (keystrokes != null) { 2431 return keystrokes; 2432 } else { 2433 return KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2434 getDefaultFocusTraversalKeys(id); 2435 } 2436 } 2437 2438 /** 2439 * Does nothing because Windows must always be roots of a focus traversal 2440 * cycle. The passed-in value is ignored. 2441 * 2442 * @param focusCycleRoot this value is ignored 2443 * @see #isFocusCycleRoot 2444 * @see Container#setFocusTraversalPolicy 2445 * @see Container#getFocusTraversalPolicy 2446 * @since 1.4 2447 */ 2448 public final void setFocusCycleRoot(boolean focusCycleRoot) { 2449 } 2450 2451 /** 2452 * Always returns {@code true} because all Windows must be roots of a 2453 * focus traversal cycle. 2454 * 2455 * @return {@code true} 2456 * @see #setFocusCycleRoot 2457 * @see Container#setFocusTraversalPolicy 2458 * @see Container#getFocusTraversalPolicy 2459 * @since 1.4 2460 */ 2461 public final boolean isFocusCycleRoot() { 2462 return true; 2463 } 2464 2465 /** 2466 * Always returns {@code null} because Windows have no ancestors; they 2467 * represent the top of the Component hierarchy. 2468 * 2469 * @return {@code null} 2470 * @see Container#isFocusCycleRoot() 2471 * @since 1.4 2472 */ 2473 public final Container getFocusCycleRootAncestor() { 2474 return null; 2475 } 2476 2477 /** 2478 * Returns whether this Window can become the focused Window, that is, 2479 * whether this Window or any of its subcomponents can become the focus 2480 * owner. For a Frame or Dialog to be focusable, its focusable Window state 2481 * must be set to {@code true}. For a Window which is not a Frame or 2482 * Dialog to be focusable, its focusable Window state must be set to 2483 * {@code true}, its nearest owning Frame or Dialog must be 2484 * showing on the screen, and it must contain at least one Component in 2485 * its focus traversal cycle. If any of these conditions is not met, then 2486 * neither this Window nor any of its subcomponents can become the focus 2487 * owner. 2488 * 2489 * @return {@code true} if this Window can be the focused Window; 2490 * {@code false} otherwise 2491 * @see #getFocusableWindowState 2492 * @see #setFocusableWindowState 2493 * @see #isShowing 2494 * @see Component#isFocusable 2495 * @since 1.4 2496 */ 2497 public final boolean isFocusableWindow() { 2498 // If a Window/Frame/Dialog was made non-focusable, then it is always 2499 // non-focusable. 2500 if (!getFocusableWindowState()) { 2501 return false; 2502 } 2503 2504 // All other tests apply only to Windows. 2505 if (this instanceof Frame || this instanceof Dialog) { 2506 return true; 2507 } 2508 2509 // A Window must have at least one Component in its root focus 2510 // traversal cycle to be focusable. 2511 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) { 2512 return false; 2513 } 2514 2515 // A Window's nearest owning Frame or Dialog must be showing on the 2516 // screen. 2517 for (Window owner = getOwner(); owner != null; 2518 owner = owner.getOwner()) 2519 { 2520 if (owner instanceof Frame || owner instanceof Dialog) { 2521 return owner.isShowing(); 2522 } 2523 } 2524 2525 return false; 2526 } 2527 2528 /** 2529 * Returns whether this Window can become the focused Window if it meets 2530 * the other requirements outlined in {@code isFocusableWindow}. If 2531 * this method returns {@code false}, then 2532 * {@code isFocusableWindow} will return {@code false} as well. 2533 * If this method returns {@code true}, then 2534 * {@code isFocusableWindow} may return {@code true} or 2535 * {@code false} depending upon the other requirements which must be 2536 * met in order for a Window to be focusable. 2537 * <p> 2538 * By default, all Windows have a focusable Window state of 2539 * {@code true}. 2540 * 2541 * @return whether this Window can be the focused Window 2542 * @see #isFocusableWindow 2543 * @see #setFocusableWindowState 2544 * @see #isShowing 2545 * @see Component#setFocusable 2546 * @since 1.4 2547 */ 2548 public boolean getFocusableWindowState() { 2549 return focusableWindowState; 2550 } 2551 2552 /** 2553 * Sets whether this Window can become the focused Window if it meets 2554 * the other requirements outlined in {@code isFocusableWindow}. If 2555 * this Window's focusable Window state is set to {@code false}, then 2556 * {@code isFocusableWindow} will return {@code false}. If this 2557 * Window's focusable Window state is set to {@code true}, then 2558 * {@code isFocusableWindow} may return {@code true} or 2559 * {@code false} depending upon the other requirements which must be 2560 * met in order for a Window to be focusable. 2561 * <p> 2562 * Setting a Window's focusability state to {@code false} is the 2563 * standard mechanism for an application to identify to the AWT a Window 2564 * which will be used as a floating palette or toolbar, and thus should be 2565 * a non-focusable Window. 2566 * 2567 * Setting the focusability state on a visible {@code Window} 2568 * can have a delayed effect on some platforms — the actual 2569 * change may happen only when the {@code Window} becomes 2570 * hidden and then visible again. To ensure consistent behavior 2571 * across platforms, set the {@code Window}'s focusable state 2572 * when the {@code Window} is invisible and then show it. 2573 * 2574 * @param focusableWindowState whether this Window can be the focused 2575 * Window 2576 * @see #isFocusableWindow 2577 * @see #getFocusableWindowState 2578 * @see #isShowing 2579 * @see Component#setFocusable 2580 * @since 1.4 2581 */ 2582 public void setFocusableWindowState(boolean focusableWindowState) { 2583 boolean oldFocusableWindowState; 2584 synchronized (this) { 2585 oldFocusableWindowState = this.focusableWindowState; 2586 this.focusableWindowState = focusableWindowState; 2587 } 2588 WindowPeer peer = (WindowPeer)this.peer; 2589 if (peer != null) { 2590 peer.updateFocusableWindowState(); 2591 } 2592 firePropertyChange("focusableWindowState", oldFocusableWindowState, 2593 focusableWindowState); 2594 if (oldFocusableWindowState && !focusableWindowState && isFocused()) { 2595 for (Window owner = getOwner(); 2596 owner != null; 2597 owner = owner.getOwner()) 2598 { 2599 Component toFocus = 2600 KeyboardFocusManager.getMostRecentFocusOwner(owner); 2601 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) { 2602 return; 2603 } 2604 } 2605 KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2606 clearGlobalFocusOwnerPriv(); 2607 } 2608 } 2609 2610 /** 2611 * Sets whether this window should receive focus on 2612 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}), 2613 * or being moved to the front (with a call to {@link #toFront}). 2614 * <p> 2615 * Note that {@link #setVisible setVisible(true)} may be called indirectly 2616 * (e.g. when showing an owner of the window makes the window to be shown). 2617 * {@link #toFront} may also be called indirectly (e.g. when 2618 * {@link #setVisible setVisible(true)} is called on already visible window). 2619 * In all such cases this property takes effect as well. 2620 * <p> 2621 * The value of the property is not inherited by owned windows. 2622 * 2623 * @param autoRequestFocus whether this window should be focused on 2624 * subsequently being shown or being moved to the front 2625 * @see #isAutoRequestFocus 2626 * @see #isFocusableWindow 2627 * @see #setVisible 2628 * @see #toFront 2629 * @since 1.7 2630 */ 2631 public void setAutoRequestFocus(boolean autoRequestFocus) { 2632 this.autoRequestFocus = autoRequestFocus; 2633 } 2634 2635 /** 2636 * Returns whether this window should receive focus on subsequently being shown 2637 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front 2638 * (with a call to {@link #toFront}). 2639 * <p> 2640 * By default, the window has {@code autoRequestFocus} value of {@code true}. 2641 * 2642 * @return {@code autoRequestFocus} value 2643 * @see #setAutoRequestFocus 2644 * @since 1.7 2645 */ 2646 public boolean isAutoRequestFocus() { 2647 return autoRequestFocus; 2648 } 2649 2650 /** 2651 * Adds a PropertyChangeListener to the listener list. The listener is 2652 * registered for all bound properties of this class, including the 2653 * following: 2654 * <ul> 2655 * <li>this Window's font ("font")</li> 2656 * <li>this Window's background color ("background")</li> 2657 * <li>this Window's foreground color ("foreground")</li> 2658 * <li>this Window's focusability ("focusable")</li> 2659 * <li>this Window's focus traversal keys enabled state 2660 * ("focusTraversalKeysEnabled")</li> 2661 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2662 * ("forwardFocusTraversalKeys")</li> 2663 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2664 * ("backwardFocusTraversalKeys")</li> 2665 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2666 * ("upCycleFocusTraversalKeys")</li> 2667 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2668 * ("downCycleFocusTraversalKeys")</li> 2669 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2670 * </li> 2671 * <li>this Window's focusable Window state ("focusableWindowState") 2672 * </li> 2673 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2674 * </ul> 2675 * Note that if this Window is inheriting a bound property, then no 2676 * event will be fired in response to a change in the inherited property. 2677 * <p> 2678 * If listener is null, no exception is thrown and no action is performed. 2679 * 2680 * @param listener the PropertyChangeListener to be added 2681 * 2682 * @see Component#removePropertyChangeListener 2683 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener) 2684 */ 2685 public void addPropertyChangeListener(PropertyChangeListener listener) { 2686 super.addPropertyChangeListener(listener); 2687 } 2688 2689 /** 2690 * Adds a PropertyChangeListener to the listener list for a specific 2691 * property. The specified property may be user-defined, or one of the 2692 * following: 2693 * <ul> 2694 * <li>this Window's font ("font")</li> 2695 * <li>this Window's background color ("background")</li> 2696 * <li>this Window's foreground color ("foreground")</li> 2697 * <li>this Window's focusability ("focusable")</li> 2698 * <li>this Window's focus traversal keys enabled state 2699 * ("focusTraversalKeysEnabled")</li> 2700 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2701 * ("forwardFocusTraversalKeys")</li> 2702 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2703 * ("backwardFocusTraversalKeys")</li> 2704 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2705 * ("upCycleFocusTraversalKeys")</li> 2706 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2707 * ("downCycleFocusTraversalKeys")</li> 2708 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2709 * </li> 2710 * <li>this Window's focusable Window state ("focusableWindowState") 2711 * </li> 2712 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2713 * </ul> 2714 * Note that if this Window is inheriting a bound property, then no 2715 * event will be fired in response to a change in the inherited property. 2716 * <p> 2717 * If listener is null, no exception is thrown and no action is performed. 2718 * 2719 * @param propertyName one of the property names listed above 2720 * @param listener the PropertyChangeListener to be added 2721 * 2722 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener) 2723 * @see Component#removePropertyChangeListener 2724 */ 2725 public void addPropertyChangeListener(String propertyName, 2726 PropertyChangeListener listener) { 2727 super.addPropertyChangeListener(propertyName, listener); 2728 } 2729 2730 /** 2731 * Indicates if this container is a validate root. 2732 * <p> 2733 * {@code Window} objects are the validate roots, and, therefore, they 2734 * override this method to return {@code true}. 2735 * 2736 * @return {@code true} 2737 * @since 1.7 2738 * @see java.awt.Container#isValidateRoot 2739 */ 2740 @Override 2741 public boolean isValidateRoot() { 2742 return true; 2743 } 2744 2745 /** 2746 * Dispatches an event to this window or one of its sub components. 2747 * @param e the event 2748 */ 2749 void dispatchEventImpl(AWTEvent e) { 2750 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) { 2751 invalidate(); 2752 validate(); 2753 } 2754 super.dispatchEventImpl(e); 2755 } 2756 2757 /** 2758 * @deprecated As of JDK version 1.1 2759 * replaced by {@code dispatchEvent(AWTEvent)}. 2760 */ 2761 @Deprecated 2762 public boolean postEvent(Event e) { 2763 if (handleEvent(e)) { 2764 e.consume(); 2765 return true; 2766 } 2767 return false; 2768 } 2769 2770 /** 2771 * Checks if this Window is showing on screen. 2772 * @see Component#setVisible 2773 */ 2774 public boolean isShowing() { 2775 return visible; 2776 } 2777 2778 boolean isDisposing() { 2779 return disposing; 2780 } 2781 2782 /** 2783 * @deprecated As of J2SE 1.4, replaced by 2784 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2785 * @param rb the resource bundle 2786 */ 2787 @Deprecated 2788 public void applyResourceBundle(ResourceBundle rb) { 2789 applyComponentOrientation(ComponentOrientation.getOrientation(rb)); 2790 } 2791 2792 /** 2793 * @deprecated As of J2SE 1.4, replaced by 2794 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2795 * @param rbName the resource name 2796 */ 2797 @Deprecated 2798 public void applyResourceBundle(String rbName) { 2799 // Use the unnamed module from the TCCL or system class loader. 2800 ClassLoader cl = Thread.currentThread().getContextClassLoader(); 2801 if (cl == null) { 2802 cl = ClassLoader.getSystemClassLoader(); 2803 } 2804 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule())); 2805 } 2806 2807 /* 2808 * Support for tracking all windows owned by this window 2809 */ 2810 void addOwnedWindow(WeakReference<Window> weakWindow) { 2811 if (weakWindow != null) { 2812 synchronized(ownedWindowList) { 2813 // this if statement should really be an assert, but we don't 2814 // have asserts... 2815 if (!ownedWindowList.contains(weakWindow)) { 2816 ownedWindowList.addElement(weakWindow); 2817 } 2818 } 2819 } 2820 } 2821 2822 void removeOwnedWindow(WeakReference<Window> weakWindow) { 2823 if (weakWindow != null) { 2824 // synchronized block not required since removeElement is 2825 // already synchronized 2826 ownedWindowList.removeElement(weakWindow); 2827 } 2828 } 2829 2830 void connectOwnedWindow(Window child) { 2831 child.parent = this; 2832 addOwnedWindow(child.weakThis); 2833 child.disposerRecord.updateOwner(); 2834 } 2835 2836 private void addToWindowList() { 2837 synchronized (Window.class) { 2838 @SuppressWarnings("unchecked") 2839 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2840 if (windowList == null) { 2841 windowList = new Vector<WeakReference<Window>>(); 2842 appContext.put(Window.class, windowList); 2843 } 2844 windowList.add(weakThis); 2845 } 2846 } 2847 2848 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) { 2849 synchronized (Window.class) { 2850 @SuppressWarnings("unchecked") 2851 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2852 if (windowList != null) { 2853 windowList.remove(weakThis); 2854 } 2855 } 2856 } 2857 2858 private void removeFromWindowList() { 2859 removeFromWindowList(appContext, weakThis); 2860 } 2861 2862 /** 2863 * Window type. 2864 * 2865 * Synchronization: ObjectLock 2866 */ 2867 private Type type = Type.NORMAL; 2868 2869 /** 2870 * Sets the type of the window. 2871 * 2872 * This method can only be called while the window is not displayable. 2873 * 2874 * @param type the window type 2875 * @throws IllegalComponentStateException if the window 2876 * is displayable. 2877 * @throws IllegalArgumentException if the type is {@code null} 2878 * @see Component#isDisplayable 2879 * @see #getType 2880 * @since 1.7 2881 */ 2882 public void setType(Type type) { 2883 if (type == null) { 2884 throw new IllegalArgumentException("type should not be null."); 2885 } 2886 synchronized (getTreeLock()) { 2887 if (isDisplayable()) { 2888 throw new IllegalComponentStateException( 2889 "The window is displayable."); 2890 } 2891 synchronized (getObjectLock()) { 2892 this.type = type; 2893 } 2894 } 2895 } 2896 2897 /** 2898 * Returns the type of the window. 2899 * 2900 * @return the type of the window 2901 * @see #setType 2902 * @since 1.7 2903 */ 2904 public Type getType() { 2905 synchronized (getObjectLock()) { 2906 return type; 2907 } 2908 } 2909 2910 /** 2911 * The window serialized data version. 2912 * 2913 * @serial 2914 */ 2915 private int windowSerializedDataVersion = 2; 2916 2917 /** 2918 * Writes default serializable fields to stream. Writes 2919 * a list of serializable {@code WindowListener}s and 2920 * {@code WindowFocusListener}s as optional data. 2921 * Writes a list of child windows as optional data. 2922 * Writes a list of icon images as optional data 2923 * 2924 * @param s the {@code ObjectOutputStream} to write 2925 * @serialData {@code null} terminated sequence of 2926 * 0 or more pairs; the pair consists of a {@code String} 2927 * and {@code Object}; the {@code String} 2928 * indicates the type of object and is one of the following: 2929 * {@code windowListenerK} indicating a 2930 * {@code WindowListener} object; 2931 * {@code windowFocusWindowK} indicating a 2932 * {@code WindowFocusListener} object; 2933 * {@code ownedWindowK} indicating a child 2934 * {@code Window} object 2935 * 2936 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2937 * @see Component#windowListenerK 2938 * @see Component#windowFocusListenerK 2939 * @see Component#ownedWindowK 2940 * @see #readObject(ObjectInputStream) 2941 */ 2942 private void writeObject(ObjectOutputStream s) throws IOException { 2943 synchronized (this) { 2944 // Update old focusMgr fields so that our object stream can be read 2945 // by previous releases 2946 focusMgr = new FocusManager(); 2947 focusMgr.focusRoot = this; 2948 focusMgr.focusOwner = getMostRecentFocusOwner(); 2949 2950 s.defaultWriteObject(); 2951 2952 // Clear fields so that we don't keep extra references around 2953 focusMgr = null; 2954 2955 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2956 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2957 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2958 } 2959 2960 s.writeObject(null); 2961 2962 synchronized (ownedWindowList) { 2963 for (int i = 0; i < ownedWindowList.size(); i++) { 2964 Window child = ownedWindowList.elementAt(i).get(); 2965 if (child != null) { 2966 s.writeObject(ownedWindowK); 2967 s.writeObject(child); 2968 } 2969 } 2970 } 2971 s.writeObject(null); 2972 2973 //write icon array 2974 if (icons != null) { 2975 for (Image i : icons) { 2976 if (i instanceof Serializable) { 2977 s.writeObject(i); 2978 } 2979 } 2980 } 2981 s.writeObject(null); 2982 } 2983 2984 // 2985 // Part of deserialization procedure to be called before 2986 // user's code. 2987 // 2988 private void initDeserializedWindow() { 2989 setWarningString(); 2990 inputContextLock = new Object(); 2991 2992 // Deserialized Windows are not yet visible. 2993 visible = false; 2994 2995 weakThis = new WeakReference<>(this); 2996 2997 anchor = new Object(); 2998 disposerRecord = new WindowDisposerRecord(appContext, this); 2999 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 3000 3001 addToWindowList(); 3002 initGC(null); 3003 ownedWindowList = new Vector<>(); 3004 } 3005 3006 private void deserializeResources(ObjectInputStream s) 3007 throws ClassNotFoundException, IOException, HeadlessException { 3008 3009 if (windowSerializedDataVersion < 2) { 3010 // Translate old-style focus tracking to new model. For 1.4 and 3011 // later releases, we'll rely on the Window's initial focusable 3012 // Component. 3013 if (focusMgr != null) { 3014 if (focusMgr.focusOwner != null) { 3015 KeyboardFocusManager. 3016 setMostRecentFocusOwner(this, focusMgr.focusOwner); 3017 } 3018 } 3019 3020 // This field is non-transient and relies on default serialization. 3021 // However, the default value is insufficient, so we need to set 3022 // it explicitly for object data streams prior to 1.4. 3023 focusableWindowState = true; 3024 3025 3026 } 3027 3028 Object keyOrNull; 3029 while(null != (keyOrNull = s.readObject())) { 3030 String key = ((String)keyOrNull).intern(); 3031 3032 if (windowListenerK == key) { 3033 addWindowListener((WindowListener)(s.readObject())); 3034 } else if (windowFocusListenerK == key) { 3035 addWindowFocusListener((WindowFocusListener)(s.readObject())); 3036 } else if (windowStateListenerK == key) { 3037 addWindowStateListener((WindowStateListener)(s.readObject())); 3038 } else // skip value for unrecognized key 3039 s.readObject(); 3040 } 3041 3042 try { 3043 while (null != (keyOrNull = s.readObject())) { 3044 String key = ((String)keyOrNull).intern(); 3045 3046 if (ownedWindowK == key) 3047 connectOwnedWindow((Window) s.readObject()); 3048 3049 else // skip value for unrecognized key 3050 s.readObject(); 3051 } 3052 3053 //read icons 3054 Object obj = s.readObject(); //Throws OptionalDataException 3055 //for pre1.6 objects. 3056 icons = new ArrayList<Image>(); //Frame.readObject() assumes 3057 //pre1.6 version if icons is null. 3058 while (obj != null) { 3059 if (obj instanceof Image) { 3060 icons.add((Image)obj); 3061 } 3062 obj = s.readObject(); 3063 } 3064 } 3065 catch (OptionalDataException e) { 3066 // 1.1 serialized form 3067 // ownedWindowList will be updated by Frame.readObject 3068 } 3069 3070 } 3071 3072 /** 3073 * Reads the {@code ObjectInputStream} and an optional 3074 * list of listeners to receive various events fired by 3075 * the component; also reads a list of 3076 * (possibly {@code null}) child windows. 3077 * Unrecognized keys or values will be ignored. 3078 * 3079 * @param s the {@code ObjectInputStream} to read 3080 * @exception HeadlessException if 3081 * {@code GraphicsEnvironment.isHeadless} returns 3082 * {@code true} 3083 * @see java.awt.GraphicsEnvironment#isHeadless 3084 * @see #writeObject 3085 */ 3086 private void readObject(ObjectInputStream s) 3087 throws ClassNotFoundException, IOException, HeadlessException 3088 { 3089 GraphicsEnvironment.checkHeadless(); 3090 initDeserializedWindow(); 3091 ObjectInputStream.GetField f = s.readFields(); 3092 3093 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3094 state = f.get("state", 0); 3095 focusableWindowState = f.get("focusableWindowState", true); 3096 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3097 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3098 // Note: 1.4 (or later) doesn't use focusMgr 3099 focusMgr = (FocusManager)f.get("focusMgr", null); 3100 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3101 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3102 setModalExclusionType(et); // since 6.0 3103 boolean aot = f.get("alwaysOnTop", false); 3104 if(aot) { 3105 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3106 } 3107 shape = (Shape)f.get("shape", null); 3108 opacity = (Float)f.get("opacity", 1.0f); 3109 3110 this.securityWarningWidth = 0; 3111 this.securityWarningHeight = 0; 3112 this.securityWarningPointX = 2.0; 3113 this.securityWarningPointY = 0.0; 3114 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3115 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3116 3117 deserializeResources(s); 3118 } 3119 3120 /* 3121 * --- Accessibility Support --- 3122 * 3123 */ 3124 3125 /** 3126 * Gets the AccessibleContext associated with this Window. 3127 * For windows, the AccessibleContext takes the form of an 3128 * AccessibleAWTWindow. 3129 * A new AccessibleAWTWindow instance is created if necessary. 3130 * 3131 * @return an AccessibleAWTWindow that serves as the 3132 * AccessibleContext of this Window 3133 * @since 1.3 3134 */ 3135 public AccessibleContext getAccessibleContext() { 3136 if (accessibleContext == null) { 3137 accessibleContext = new AccessibleAWTWindow(); 3138 } 3139 return accessibleContext; 3140 } 3141 3142 /** 3143 * This class implements accessibility support for the 3144 * {@code Window} class. It provides an implementation of the 3145 * Java Accessibility API appropriate to window user-interface elements. 3146 * @since 1.3 3147 */ 3148 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3149 { 3150 /* 3151 * JDK 1.3 serialVersionUID 3152 */ 3153 private static final long serialVersionUID = 4215068635060671780L; 3154 3155 /** 3156 * Get the role of this object. 3157 * 3158 * @return an instance of AccessibleRole describing the role of the 3159 * object 3160 * @see javax.accessibility.AccessibleRole 3161 */ 3162 public AccessibleRole getAccessibleRole() { 3163 return AccessibleRole.WINDOW; 3164 } 3165 3166 /** 3167 * Get the state of this object. 3168 * 3169 * @return an instance of AccessibleStateSet containing the current 3170 * state set of the object 3171 * @see javax.accessibility.AccessibleState 3172 */ 3173 public AccessibleStateSet getAccessibleStateSet() { 3174 AccessibleStateSet states = super.getAccessibleStateSet(); 3175 if (getFocusOwner() != null) { 3176 states.add(AccessibleState.ACTIVE); 3177 } 3178 return states; 3179 } 3180 3181 } // inner class AccessibleAWTWindow 3182 3183 @Override 3184 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3185 if (gc == null) { 3186 gc = GraphicsEnvironment. 3187 getLocalGraphicsEnvironment(). 3188 getDefaultScreenDevice(). 3189 getDefaultConfiguration(); 3190 } 3191 synchronized (getTreeLock()) { 3192 super.setGraphicsConfiguration(gc); 3193 if (log.isLoggable(PlatformLogger.Level.FINER)) { 3194 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3195 } 3196 } 3197 } 3198 3199 /** 3200 * Sets the location of the window relative to the specified 3201 * component according to the following scenarios. 3202 * <p> 3203 * The target screen mentioned below is a screen to which 3204 * the window should be placed after the setLocationRelativeTo 3205 * method is called. 3206 * <ul> 3207 * <li>If the component is {@code null}, or the {@code 3208 * GraphicsConfiguration} associated with this component is 3209 * {@code null}, the window is placed in the center of the 3210 * screen. The center point can be obtained with the {@link 3211 * GraphicsEnvironment#getCenterPoint 3212 * GraphicsEnvironment.getCenterPoint} method. 3213 * <li>If the component is not {@code null}, but it is not 3214 * currently showing, the window is placed in the center of 3215 * the target screen defined by the {@code 3216 * GraphicsConfiguration} associated with this component. 3217 * <li>If the component is not {@code null} and is shown on 3218 * the screen, then the window is located in such a way that 3219 * the center of the window coincides with the center of the 3220 * component. 3221 * </ul> 3222 * <p> 3223 * If the screens configuration does not allow the window to 3224 * be moved from one screen to another, then the window is 3225 * only placed at the location determined according to the 3226 * above conditions and its {@code GraphicsConfiguration} is 3227 * not changed. 3228 * <p> 3229 * <b>Note</b>: If the lower edge of the window is out of the screen, 3230 * then the window is placed to the side of the {@code Component} 3231 * that is closest to the center of the screen. So if the 3232 * component is on the right part of the screen, the window 3233 * is placed to its left, and vice versa. 3234 * <p> 3235 * If after the window location has been calculated, the upper, 3236 * left, or right edge of the window is out of the screen, 3237 * then the window is located in such a way that the upper, 3238 * left, or right edge of the window coincides with the 3239 * corresponding edge of the screen. If both left and right 3240 * edges of the window are out of the screen, the window is 3241 * placed at the left side of the screen. The similar placement 3242 * will occur if both top and bottom edges are out of the screen. 3243 * In that case, the window is placed at the top side of the screen. 3244 * <p> 3245 * The method changes the geometry-related data. Therefore, 3246 * the native windowing system may ignore such requests, or it may modify 3247 * the requested data, so that the {@code Window} object is placed and sized 3248 * in a way that corresponds closely to the desktop settings. 3249 * 3250 * @param c the component in relation to which the window's location 3251 * is determined 3252 * @see java.awt.GraphicsEnvironment#getCenterPoint 3253 * @since 1.4 3254 */ 3255 public void setLocationRelativeTo(Component c) { 3256 // target location 3257 int dx = 0, dy = 0; 3258 // target GC 3259 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3260 Rectangle gcBounds = gc.getBounds(); 3261 3262 Dimension windowSize = getSize(); 3263 3264 // search a top-level of c 3265 Window componentWindow = SunToolkit.getContainingWindow(c); 3266 if ((c == null) || (componentWindow == null)) { 3267 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3268 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3269 gcBounds = gc.getBounds(); 3270 Point centerPoint = ge.getCenterPoint(); 3271 dx = centerPoint.x - windowSize.width / 2; 3272 dy = centerPoint.y - windowSize.height / 2; 3273 } else if (!c.isShowing()) { 3274 gc = componentWindow.getGraphicsConfiguration(); 3275 gcBounds = gc.getBounds(); 3276 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3277 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3278 } else { 3279 gc = componentWindow.getGraphicsConfiguration(); 3280 gcBounds = gc.getBounds(); 3281 Dimension compSize = c.getSize(); 3282 Point compLocation = c.getLocationOnScreen(); 3283 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3284 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3285 3286 // Adjust for bottom edge being offscreen 3287 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3288 dy = gcBounds.y + gcBounds.height - windowSize.height; 3289 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3290 dx = compLocation.x + compSize.width; 3291 } else { 3292 dx = compLocation.x - windowSize.width; 3293 } 3294 } 3295 } 3296 3297 // Avoid being placed off the edge of the screen: 3298 // bottom 3299 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3300 dy = gcBounds.y + gcBounds.height - windowSize.height; 3301 } 3302 // top 3303 if (dy < gcBounds.y) { 3304 dy = gcBounds.y; 3305 } 3306 // right 3307 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3308 dx = gcBounds.x + gcBounds.width - windowSize.width; 3309 } 3310 // left 3311 if (dx < gcBounds.x) { 3312 dx = gcBounds.x; 3313 } 3314 3315 setLocation(dx, dy); 3316 } 3317 3318 /** 3319 * Overridden from Component. Top-level Windows should not propagate a 3320 * MouseWheelEvent beyond themselves into their owning Windows. 3321 */ 3322 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3323 3324 /** 3325 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3326 */ 3327 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3328 3329 /** 3330 * Creates a new strategy for multi-buffering on this component. 3331 * Multi-buffering is useful for rendering performance. This method 3332 * attempts to create the best strategy available with the number of 3333 * buffers supplied. It will always create a {@code BufferStrategy} 3334 * with that number of buffers. 3335 * A page-flipping strategy is attempted first, then a blitting strategy 3336 * using accelerated buffers. Finally, an unaccelerated blitting 3337 * strategy is used. 3338 * <p> 3339 * Each time this method is called, 3340 * the existing buffer strategy for this component is discarded. 3341 * @param numBuffers number of buffers to create 3342 * @exception IllegalArgumentException if numBuffers is less than 1. 3343 * @exception IllegalStateException if the component is not displayable 3344 * @see #isDisplayable 3345 * @see #getBufferStrategy 3346 * @since 1.4 3347 */ 3348 public void createBufferStrategy(int numBuffers) { 3349 super.createBufferStrategy(numBuffers); 3350 } 3351 3352 /** 3353 * Creates a new strategy for multi-buffering on this component with the 3354 * required buffer capabilities. This is useful, for example, if only 3355 * accelerated memory or page flipping is desired (as specified by the 3356 * buffer capabilities). 3357 * <p> 3358 * Each time this method 3359 * is called, the existing buffer strategy for this component is discarded. 3360 * @param numBuffers number of buffers to create, including the front buffer 3361 * @param caps the required capabilities for creating the buffer strategy; 3362 * cannot be {@code null} 3363 * @exception AWTException if the capabilities supplied could not be 3364 * supported or met; this may happen, for example, if there is not enough 3365 * accelerated memory currently available, or if page flipping is specified 3366 * but not possible. 3367 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3368 * caps is {@code null} 3369 * @see #getBufferStrategy 3370 * @since 1.4 3371 */ 3372 public void createBufferStrategy(int numBuffers, 3373 BufferCapabilities caps) throws AWTException { 3374 super.createBufferStrategy(numBuffers, caps); 3375 } 3376 3377 /** 3378 * Returns the {@code BufferStrategy} used by this component. This 3379 * method will return null if a {@code BufferStrategy} has not yet 3380 * been created or has been disposed. 3381 * 3382 * @return the buffer strategy used by this component 3383 * @see #createBufferStrategy 3384 * @since 1.4 3385 */ 3386 public BufferStrategy getBufferStrategy() { 3387 return super.getBufferStrategy(); 3388 } 3389 3390 Component getTemporaryLostComponent() { 3391 return temporaryLostComponent; 3392 } 3393 Component setTemporaryLostComponent(Component component) { 3394 Component previousComp = temporaryLostComponent; 3395 // Check that "component" is an acceptable focus owner and don't store it otherwise 3396 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3397 if (component == null || component.canBeFocusOwner()) { 3398 temporaryLostComponent = component; 3399 } else { 3400 temporaryLostComponent = null; 3401 } 3402 return previousComp; 3403 } 3404 3405 /** 3406 * Checks whether this window can contain focus owner. 3407 * Verifies that it is focusable and as container it can container focus owner. 3408 * @since 1.5 3409 */ 3410 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3411 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3412 } 3413 3414 private volatile boolean locationByPlatform = locationByPlatformProp; 3415 3416 3417 /** 3418 * Sets whether this Window should appear at the default location for the 3419 * native windowing system or at the current location (returned by 3420 * {@code getLocation}) the next time the Window is made visible. 3421 * This behavior resembles a native window shown without programmatically 3422 * setting its location. Most windowing systems cascade windows if their 3423 * locations are not explicitly set. The actual location is determined once the 3424 * window is shown on the screen. 3425 * <p> 3426 * This behavior can also be enabled by setting the System Property 3427 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3428 * take precedence. 3429 * <p> 3430 * Calls to {@code setVisible}, {@code setLocation} and 3431 * {@code setBounds} after calling {@code setLocationByPlatform} clear 3432 * this property of the Window. 3433 * <p> 3434 * For example, after the following code is executed: 3435 * <pre> 3436 * setLocationByPlatform(true); 3437 * setVisible(true); 3438 * boolean flag = isLocationByPlatform(); 3439 * </pre> 3440 * The window will be shown at platform's default location and 3441 * {@code flag} will be {@code false}. 3442 * <p> 3443 * In the following sample: 3444 * <pre> 3445 * setLocationByPlatform(true); 3446 * setLocation(10, 10); 3447 * boolean flag = isLocationByPlatform(); 3448 * setVisible(true); 3449 * </pre> 3450 * The window will be shown at (10, 10) and {@code flag} will be 3451 * {@code false}. 3452 * 3453 * @param locationByPlatform {@code true} if this Window should appear 3454 * at the default location, {@code false} if at the current location 3455 * @throws IllegalComponentStateException if the window 3456 * is showing on screen and locationByPlatform is {@code true}. 3457 * @see #setLocation 3458 * @see #isShowing 3459 * @see #setVisible 3460 * @see #isLocationByPlatform 3461 * @see java.lang.System#getProperty(String) 3462 * @since 1.5 3463 */ 3464 public void setLocationByPlatform(boolean locationByPlatform) { 3465 synchronized (getTreeLock()) { 3466 if (locationByPlatform && isShowing()) { 3467 throw new IllegalComponentStateException("The window is showing on screen."); 3468 } 3469 this.locationByPlatform = locationByPlatform; 3470 } 3471 } 3472 3473 /** 3474 * Returns {@code true} if this Window will appear at the default location 3475 * for the native windowing system the next time this Window is made visible. 3476 * This method always returns {@code false} if the Window is showing on the 3477 * screen. 3478 * 3479 * @return whether this Window will appear at the default location 3480 * @see #setLocationByPlatform 3481 * @see #isShowing 3482 * @since 1.5 3483 */ 3484 public boolean isLocationByPlatform() { 3485 return locationByPlatform; 3486 } 3487 3488 /** 3489 * {@inheritDoc} 3490 * <p> 3491 * The {@code width} or {@code height} values 3492 * are automatically enlarged if either is less than 3493 * the minimum size as specified by previous call to 3494 * {@code setMinimumSize}. 3495 * <p> 3496 * The method changes the geometry-related data. Therefore, 3497 * the native windowing system may ignore such requests, or it may modify 3498 * the requested data, so that the {@code Window} object is placed and sized 3499 * in a way that corresponds closely to the desktop settings. 3500 * 3501 * @see #getBounds 3502 * @see #setLocation(int, int) 3503 * @see #setLocation(Point) 3504 * @see #setSize(int, int) 3505 * @see #setSize(Dimension) 3506 * @see #setMinimumSize 3507 * @see #setLocationByPlatform 3508 * @see #isLocationByPlatform 3509 * @since 1.6 3510 */ 3511 public void setBounds(int x, int y, int width, int height) { 3512 synchronized (getTreeLock()) { 3513 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3514 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3515 { 3516 locationByPlatform = false; 3517 } 3518 super.setBounds(x, y, width, height); 3519 } 3520 } 3521 3522 /** 3523 * {@inheritDoc} 3524 * <p> 3525 * The {@code r.width} or {@code r.height} values 3526 * will be automatically enlarged if either is less than 3527 * the minimum size as specified by previous call to 3528 * {@code setMinimumSize}. 3529 * <p> 3530 * The method changes the geometry-related data. Therefore, 3531 * the native windowing system may ignore such requests, or it may modify 3532 * the requested data, so that the {@code Window} object is placed and sized 3533 * in a way that corresponds closely to the desktop settings. 3534 * 3535 * @see #getBounds 3536 * @see #setLocation(int, int) 3537 * @see #setLocation(Point) 3538 * @see #setSize(int, int) 3539 * @see #setSize(Dimension) 3540 * @see #setMinimumSize 3541 * @see #setLocationByPlatform 3542 * @see #isLocationByPlatform 3543 * @since 1.6 3544 */ 3545 public void setBounds(Rectangle r) { 3546 setBounds(r.x, r.y, r.width, r.height); 3547 } 3548 3549 /** 3550 * Determines whether this component will be displayed on the screen. 3551 * @return {@code true} if the component and all of its ancestors 3552 * until a toplevel window are visible, {@code false} otherwise 3553 */ 3554 boolean isRecursivelyVisible() { 3555 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3556 // We're overriding isRecursivelyVisible to implement this policy. 3557 return visible; 3558 } 3559 3560 3561 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3562 3563 /** 3564 * Returns the opacity of the window. 3565 * 3566 * @return the opacity of the window 3567 * 3568 * @see Window#setOpacity(float) 3569 * @see GraphicsDevice.WindowTranslucency 3570 * 3571 * @since 1.7 3572 */ 3573 public float getOpacity() { 3574 return opacity; 3575 } 3576 3577 /** 3578 * Sets the opacity of the window. 3579 * <p> 3580 * The opacity value is in the range [0..1]. Note that setting the opacity 3581 * level of 0 may or may not disable the mouse event handling on this 3582 * window. This is a platform-dependent behavior. 3583 * <p> 3584 * The following conditions must be met in order to set the opacity value 3585 * less than {@code 1.0f}: 3586 * <ul> 3587 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3588 * translucency must be supported by the underlying system 3589 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3590 * and {@link Dialog#setUndecorated}) 3591 * <li>The window must not be in full-screen mode (see {@link 3592 * GraphicsDevice#setFullScreenWindow(Window)}) 3593 * </ul> 3594 * <p> 3595 * If the requested opacity value is less than {@code 1.0f}, and any of the 3596 * above conditions are not met, the window opacity will not change, 3597 * and the {@code IllegalComponentStateException} will be thrown. 3598 * <p> 3599 * The translucency levels of individual pixels may also be effected by the 3600 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3601 * current shape of this window (see {@link #setShape(Shape)}). 3602 * 3603 * @param opacity the opacity level to set to the window 3604 * 3605 * @throws IllegalArgumentException if the opacity is out of the range 3606 * [0..1] 3607 * @throws IllegalComponentStateException if the window is decorated and 3608 * the opacity is less than {@code 1.0f} 3609 * @throws IllegalComponentStateException if the window is in full screen 3610 * mode, and the opacity is less than {@code 1.0f} 3611 * @throws UnsupportedOperationException if the {@code 3612 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3613 * translucency is not supported and the opacity is less than 3614 * {@code 1.0f} 3615 * 3616 * @see Window#getOpacity 3617 * @see Window#setBackground(Color) 3618 * @see Window#setShape(Shape) 3619 * @see Frame#isUndecorated 3620 * @see Dialog#isUndecorated 3621 * @see GraphicsDevice.WindowTranslucency 3622 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3623 * 3624 * @since 1.7 3625 */ 3626 @SuppressWarnings("deprecation") 3627 public void setOpacity(float opacity) { 3628 synchronized (getTreeLock()) { 3629 if (opacity < 0.0f || opacity > 1.0f) { 3630 throw new IllegalArgumentException( 3631 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3632 } 3633 if (opacity < 1.0f) { 3634 GraphicsConfiguration gc = getGraphicsConfiguration(); 3635 GraphicsDevice gd = gc.getDevice(); 3636 if (gc.getDevice().getFullScreenWindow() == this) { 3637 throw new IllegalComponentStateException( 3638 "Setting opacity for full-screen window is not supported."); 3639 } 3640 if (!gd.isWindowTranslucencySupported( 3641 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3642 { 3643 throw new UnsupportedOperationException( 3644 "TRANSLUCENT translucency is not supported."); 3645 } 3646 } 3647 this.opacity = opacity; 3648 WindowPeer peer = (WindowPeer) this.peer; 3649 if (peer != null) { 3650 peer.setOpacity(opacity); 3651 } 3652 } 3653 } 3654 3655 /** 3656 * Returns the shape of the window. 3657 * 3658 * The value returned by this method may not be the same as 3659 * previously set with {@code setShape(shape)}, but it is guaranteed 3660 * to represent the same shape. 3661 * 3662 * @return the shape of the window or {@code null} if no 3663 * shape is specified for the window 3664 * 3665 * @see Window#setShape(Shape) 3666 * @see GraphicsDevice.WindowTranslucency 3667 * 3668 * @since 1.7 3669 */ 3670 public Shape getShape() { 3671 synchronized (getTreeLock()) { 3672 return shape == null ? null : new Path2D.Float(shape); 3673 } 3674 } 3675 3676 /** 3677 * Sets the shape of the window. 3678 * <p> 3679 * Setting a shape cuts off some parts of the window. Only the parts that 3680 * belong to the given {@link Shape} remain visible and clickable. If 3681 * the shape argument is {@code null}, this method restores the default 3682 * shape, making the window rectangular on most platforms. 3683 * <p> 3684 * The following conditions must be met to set a non-null shape: 3685 * <ul> 3686 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3687 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3688 * underlying system 3689 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3690 * and {@link Dialog#setUndecorated}) 3691 * <li>The window must not be in full-screen mode (see {@link 3692 * GraphicsDevice#setFullScreenWindow(Window)}) 3693 * </ul> 3694 * <p> 3695 * If the requested shape is not {@code null}, and any of the above 3696 * conditions are not met, the shape of this window will not change, 3697 * and either the {@code UnsupportedOperationException} or {@code 3698 * IllegalComponentStateException} will be thrown. 3699 * <p> 3700 * The translucency levels of individual pixels may also be effected by the 3701 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3702 * opacity value (see {@link #setOpacity(float)}). See {@link 3703 * GraphicsDevice.WindowTranslucency} for more details. 3704 * 3705 * @param shape the shape to set to the window 3706 * 3707 * @throws IllegalComponentStateException if the shape is not {@code 3708 * null} and the window is decorated 3709 * @throws IllegalComponentStateException if the shape is not {@code 3710 * null} and the window is in full-screen mode 3711 * @throws UnsupportedOperationException if the shape is not {@code 3712 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3713 * PERPIXEL_TRANSPARENT} translucency is not supported 3714 * 3715 * @see Window#getShape() 3716 * @see Window#setBackground(Color) 3717 * @see Window#setOpacity(float) 3718 * @see Frame#isUndecorated 3719 * @see Dialog#isUndecorated 3720 * @see GraphicsDevice.WindowTranslucency 3721 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3722 * 3723 * @since 1.7 3724 */ 3725 public void setShape(Shape shape) { 3726 synchronized (getTreeLock()) { 3727 if (shape != null) { 3728 GraphicsConfiguration gc = getGraphicsConfiguration(); 3729 GraphicsDevice gd = gc.getDevice(); 3730 if (gc.getDevice().getFullScreenWindow() == this) { 3731 throw new IllegalComponentStateException( 3732 "Setting shape for full-screen window is not supported."); 3733 } 3734 if (!gd.isWindowTranslucencySupported( 3735 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3736 { 3737 throw new UnsupportedOperationException( 3738 "PERPIXEL_TRANSPARENT translucency is not supported."); 3739 } 3740 } 3741 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3742 WindowPeer peer = (WindowPeer) this.peer; 3743 if (peer != null) { 3744 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3745 } 3746 } 3747 } 3748 3749 /** 3750 * Gets the background color of this window. 3751 * <p> 3752 * Note that the alpha component of the returned color indicates whether 3753 * the window is in the non-opaque (per-pixel translucent) mode. 3754 * 3755 * @return this component's background color 3756 * 3757 * @see Window#setBackground(Color) 3758 * @see Window#isOpaque 3759 * @see GraphicsDevice.WindowTranslucency 3760 */ 3761 @Override 3762 public Color getBackground() { 3763 return super.getBackground(); 3764 } 3765 3766 /** 3767 * Sets the background color of this window. 3768 * <p> 3769 * If the windowing system supports the {@link 3770 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3771 * translucency, the alpha component of the given background color 3772 * may effect the mode of operation for this window: it indicates whether 3773 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3774 * (alpha is less than {@code 1.0f}). If the given background color is 3775 * {@code null}, the window is considered completely opaque. 3776 * <p> 3777 * All the following conditions must be met to enable the per-pixel 3778 * transparency mode for this window: 3779 * <ul> 3780 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3781 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3782 * device where this window is located 3783 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3784 * and {@link Dialog#setUndecorated}) 3785 * <li>The window must not be in full-screen mode (see {@link 3786 * GraphicsDevice#setFullScreenWindow(Window)}) 3787 * </ul> 3788 * <p> 3789 * If the alpha component of the requested background color is less than 3790 * {@code 1.0f}, and any of the above conditions are not met, the background 3791 * color of this window will not change, the alpha component of the given 3792 * background color will not affect the mode of operation for this window, 3793 * and either the {@code UnsupportedOperationException} or {@code 3794 * IllegalComponentStateException} will be thrown. 3795 * <p> 3796 * When the window is per-pixel translucent, the drawing sub-system 3797 * respects the alpha value of each individual pixel. If a pixel gets 3798 * painted with the alpha color component equal to zero, it becomes 3799 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3800 * pixel is fully opaque. Interim values of the alpha color component make 3801 * the pixel semi-transparent. In this mode, the background of the window 3802 * gets painted with the alpha value of the given background color. If the 3803 * alpha value of the argument of this method is equal to {@code 0}, the 3804 * background is not painted at all. 3805 * <p> 3806 * The actual level of translucency of a given pixel also depends on window 3807 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3808 * this window (see {@link #setShape(Shape)}). 3809 * <p> 3810 * Note that painting a pixel with the alpha value of {@code 0} may or may 3811 * not disable the mouse event handling on this pixel. This is a 3812 * platform-dependent behavior. To make sure the mouse events do not get 3813 * dispatched to a particular pixel, the pixel must be excluded from the 3814 * shape of the window. 3815 * <p> 3816 * Enabling the per-pixel translucency mode may change the graphics 3817 * configuration of this window due to the native platform requirements. 3818 * 3819 * @param bgColor the color to become this window's background color. 3820 * 3821 * @throws IllegalComponentStateException if the alpha value of the given 3822 * background color is less than {@code 1.0f} and the window is decorated 3823 * @throws IllegalComponentStateException if the alpha value of the given 3824 * background color is less than {@code 1.0f} and the window is in 3825 * full-screen mode 3826 * @throws UnsupportedOperationException if the alpha value of the given 3827 * background color is less than {@code 1.0f} and {@link 3828 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3829 * PERPIXEL_TRANSLUCENT} translucency is not supported 3830 * 3831 * @see Window#getBackground 3832 * @see Window#isOpaque 3833 * @see Window#setOpacity(float) 3834 * @see Window#setShape(Shape) 3835 * @see Frame#isUndecorated 3836 * @see Dialog#isUndecorated 3837 * @see GraphicsDevice.WindowTranslucency 3838 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3839 * @see GraphicsConfiguration#isTranslucencyCapable() 3840 */ 3841 @Override 3842 public void setBackground(Color bgColor) { 3843 Color oldBg = getBackground(); 3844 super.setBackground(bgColor); 3845 if (oldBg != null && oldBg.equals(bgColor)) { 3846 return; 3847 } 3848 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3849 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3850 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3851 GraphicsConfiguration gc = getGraphicsConfiguration(); 3852 GraphicsDevice gd = gc.getDevice(); 3853 if (gc.getDevice().getFullScreenWindow() == this) { 3854 throw new IllegalComponentStateException( 3855 "Making full-screen window non opaque is not supported."); 3856 } 3857 if (!gc.isTranslucencyCapable()) { 3858 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3859 if (capableGC == null) { 3860 throw new UnsupportedOperationException( 3861 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3862 } 3863 setGraphicsConfiguration(capableGC); 3864 } 3865 setLayersOpaque(this, false); 3866 } else if ((oldAlpha < 255) && (alpha == 255)) { 3867 setLayersOpaque(this, true); 3868 } 3869 WindowPeer peer = (WindowPeer) this.peer; 3870 if (peer != null) { 3871 peer.setOpaque(alpha == 255); 3872 } 3873 } 3874 3875 /** 3876 * Indicates if the window is currently opaque. 3877 * <p> 3878 * The method returns {@code false} if the background color of the window 3879 * is not {@code null} and the alpha component of the color is less than 3880 * {@code 1.0f}. The method returns {@code true} otherwise. 3881 * 3882 * @return {@code true} if the window is opaque, {@code false} otherwise 3883 * 3884 * @see Window#getBackground 3885 * @see Window#setBackground(Color) 3886 * @since 1.7 3887 */ 3888 @Override 3889 public boolean isOpaque() { 3890 Color bg = getBackground(); 3891 return bg != null ? bg.getAlpha() == 255 : true; 3892 } 3893 3894 private void updateWindow() { 3895 synchronized (getTreeLock()) { 3896 WindowPeer peer = (WindowPeer) this.peer; 3897 if (peer != null) { 3898 peer.updateWindow(); 3899 } 3900 } 3901 } 3902 3903 /** 3904 * {@inheritDoc} 3905 * 3906 * @since 1.7 3907 */ 3908 @Override 3909 public void paint(Graphics g) { 3910 if (!isOpaque()) { 3911 Graphics gg = g.create(); 3912 try { 3913 if (gg instanceof Graphics2D) { 3914 gg.setColor(getBackground()); 3915 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3916 gg.fillRect(0, 0, getWidth(), getHeight()); 3917 } 3918 } finally { 3919 gg.dispose(); 3920 } 3921 } 3922 super.paint(g); 3923 } 3924 3925 private static void setLayersOpaque(Component component, boolean isOpaque) { 3926 // Shouldn't use instanceof to avoid loading Swing classes 3927 // if it's a pure AWT application. 3928 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3929 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3930 javax.swing.JRootPane root = rpc.getRootPane(); 3931 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3932 Container c = root.getContentPane(); 3933 javax.swing.JComponent content = 3934 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3935 lp.setOpaque(isOpaque); 3936 root.setOpaque(isOpaque); 3937 if (content != null) { 3938 content.setOpaque(isOpaque); 3939 3940 // Iterate down one level to see whether we have a JApplet 3941 // (which is also a RootPaneContainer) which requires processing 3942 int numChildren = content.getComponentCount(); 3943 if (numChildren > 0) { 3944 Component child = content.getComponent(0); 3945 // It's OK to use instanceof here because we've 3946 // already loaded the RootPaneContainer class by now 3947 if (child instanceof javax.swing.RootPaneContainer) { 3948 setLayersOpaque(child, isOpaque); 3949 } 3950 } 3951 } 3952 } 3953 } 3954 3955 3956 // ************************** MIXING CODE ******************************* 3957 3958 // A window has an owner, but it does NOT have a container 3959 @Override 3960 final Container getContainer() { 3961 return null; 3962 } 3963 3964 /** 3965 * Applies the shape to the component 3966 * @param shape Shape to be applied to the component 3967 */ 3968 @Override 3969 final void applyCompoundShape(Region shape) { 3970 // The shape calculated by mixing code is not intended to be applied 3971 // to windows or frames 3972 } 3973 3974 @Override 3975 final void applyCurrentShape() { 3976 // The shape calculated by mixing code is not intended to be applied 3977 // to windows or frames 3978 } 3979 3980 @Override 3981 final void mixOnReshaping() { 3982 // The shape calculated by mixing code is not intended to be applied 3983 // to windows or frames 3984 } 3985 3986 @Override 3987 final Point getLocationOnWindow() { 3988 return new Point(0, 0); 3989 } 3990 3991 // ****************** END OF MIXING CODE ******************************** 3992 3993 /** 3994 * Limit the given double value with the given range. 3995 */ 3996 private static double limit(double value, double min, double max) { 3997 value = Math.max(value, min); 3998 value = Math.min(value, max); 3999 return value; 4000 } 4001 4002 /** 4003 * Calculate the position of the security warning. 4004 * 4005 * This method gets the window location/size as reported by the native 4006 * system since the locally cached values may represent outdated data. 4007 * 4008 * The method is used from the native code, or via AWTAccessor. 4009 * 4010 * NOTE: this method is invoked on the toolkit thread, and therefore is not 4011 * supposed to become public/user-overridable. 4012 */ 4013 private Point2D calculateSecurityWarningPosition(double x, double y, 4014 double w, double h) 4015 { 4016 // The position according to the spec of SecurityWarning.setPosition() 4017 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 4018 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 4019 4020 // First, make sure the warning is not too far from the window bounds 4021 wx = Window.limit(wx, 4022 x - securityWarningWidth - 2, 4023 x + w + 2); 4024 wy = Window.limit(wy, 4025 y - securityWarningHeight - 2, 4026 y + h + 2); 4027 4028 // Now make sure the warning window is visible on the screen 4029 GraphicsConfiguration graphicsConfig = 4030 getGraphicsConfiguration_NoClientCode(); 4031 Rectangle screenBounds = graphicsConfig.getBounds(); 4032 Insets screenInsets = 4033 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 4034 4035 wx = Window.limit(wx, 4036 screenBounds.x + screenInsets.left, 4037 screenBounds.x + screenBounds.width - screenInsets.right 4038 - securityWarningWidth); 4039 wy = Window.limit(wy, 4040 screenBounds.y + screenInsets.top, 4041 screenBounds.y + screenBounds.height - screenInsets.bottom 4042 - securityWarningHeight); 4043 4044 return new Point2D.Double(wx, wy); 4045 } 4046 4047 static { 4048 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 4049 public float getOpacity(Window window) { 4050 return window.opacity; 4051 } 4052 public void setOpacity(Window window, float opacity) { 4053 window.setOpacity(opacity); 4054 } 4055 public Shape getShape(Window window) { 4056 return window.getShape(); 4057 } 4058 public void setShape(Window window, Shape shape) { 4059 window.setShape(shape); 4060 } 4061 public void setOpaque(Window window, boolean opaque) { 4062 Color bg = window.getBackground(); 4063 if (bg == null) { 4064 bg = new Color(0, 0, 0, 0); 4065 } 4066 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4067 opaque ? 255 : 0)); 4068 } 4069 public void updateWindow(Window window) { 4070 window.updateWindow(); 4071 } 4072 4073 public Dimension getSecurityWarningSize(Window window) { 4074 return new Dimension(window.securityWarningWidth, 4075 window.securityWarningHeight); 4076 } 4077 4078 public void setSecurityWarningSize(Window window, int width, int height) 4079 { 4080 window.securityWarningWidth = width; 4081 window.securityWarningHeight = height; 4082 } 4083 4084 public void setSecurityWarningPosition(Window window, 4085 Point2D point, float alignmentX, float alignmentY) 4086 { 4087 window.securityWarningPointX = point.getX(); 4088 window.securityWarningPointY = point.getY(); 4089 window.securityWarningAlignmentX = alignmentX; 4090 window.securityWarningAlignmentY = alignmentY; 4091 4092 synchronized (window.getTreeLock()) { 4093 WindowPeer peer = (WindowPeer) window.peer; 4094 if (peer != null) { 4095 peer.repositionSecurityWarning(); 4096 } 4097 } 4098 } 4099 4100 public Point2D calculateSecurityWarningPosition(Window window, 4101 double x, double y, double w, double h) 4102 { 4103 return window.calculateSecurityWarningPosition(x, y, w, h); 4104 } 4105 4106 public void setLWRequestStatus(Window changed, boolean status) { 4107 changed.syncLWRequests = status; 4108 } 4109 4110 public boolean isAutoRequestFocus(Window w) { 4111 return w.autoRequestFocus; 4112 } 4113 4114 public boolean isTrayIconWindow(Window w) { 4115 return w.isTrayIconWindow; 4116 } 4117 4118 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4119 w.isTrayIconWindow = isTrayIconWindow; 4120 } 4121 }); // WindowAccessor 4122 } // static 4123 4124 // a window doesn't need to be updated in the Z-order. 4125 @Override 4126 void updateZOrder() {} 4127 4128 } // class Window 4129 4130 4131 /** 4132 * This class is no longer used, but is maintained for Serialization 4133 * backward-compatibility. 4134 */ 4135 class FocusManager implements java.io.Serializable { 4136 Container focusRoot; 4137 Component focusOwner; 4138 4139 /* 4140 * JDK 1.1 serialVersionUID 4141 */ 4142 static final long serialVersionUID = 2491878825643557906L; 4143 }