1 /* 2 * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.image.BufferedImage; 33 import java.awt.peer.ComponentPeer; 34 import java.awt.peer.WindowPeer; 35 import java.beans.PropertyChangeListener; 36 import java.io.IOException; 37 import java.io.ObjectInputStream; 38 import java.io.ObjectOutputStream; 39 import java.io.OptionalDataException; 40 import java.io.Serializable; 41 import java.lang.ref.WeakReference; 42 import java.lang.reflect.InvocationTargetException; 43 import java.security.AccessController; 44 import java.util.ArrayList; 45 import java.util.Arrays; 46 import java.util.EventListener; 47 import java.util.Locale; 48 import java.util.ResourceBundle; 49 import java.util.Set; 50 import java.util.Vector; 51 import java.util.concurrent.atomic.AtomicBoolean; 52 import javax.accessibility.*; 53 import sun.awt.AWTAccessor; 54 import sun.awt.AppContext; 55 import sun.awt.CausedFocusEvent; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.Disposer; 59 import sun.java2d.pipe.Region; 60 import sun.security.action.GetPropertyAction; 61 import sun.security.util.SecurityConstants; 62 import sun.util.logging.PlatformLogger; 63 64 /** 65 * A {@code Window} object is a top-level window with no borders and no 66 * menubar. 67 * The default layout for a window is {@code BorderLayout}. 68 * <p> 69 * A window must have either a frame, dialog, or another window defined as its 70 * owner when it's constructed. 71 * <p> 72 * In a multi-screen environment, you can create a {@code Window} 73 * on a different screen device by constructing the {@code Window} 74 * with {@link #Window(Window, GraphicsConfiguration)}. The 75 * {@code GraphicsConfiguration} object is one of the 76 * {@code GraphicsConfiguration} objects of the target screen device. 77 * <p> 78 * In a virtual device multi-screen environment in which the desktop 79 * area could span multiple physical screen devices, the bounds of all 80 * configurations are relative to the virtual device coordinate system. 81 * The origin of the virtual-coordinate system is at the upper left-hand 82 * corner of the primary physical screen. Depending on the location of 83 * the primary screen in the virtual device, negative coordinates are 84 * possible, as shown in the following figure. 85 * <p> 86 * <img src="doc-files/MultiScreen.gif" 87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 88 * style="float:center; margin: 7px 10px;"> 89 * <p> 90 * In such an environment, when calling {@code setLocation}, 91 * you must pass a virtual coordinate to this method. Similarly, 92 * calling {@code getLocationOnScreen} on a {@code Window} returns 93 * virtual device coordinates. Call the {@code getBounds} method 94 * of a {@code GraphicsConfiguration} to find its origin in the virtual 95 * coordinate system. 96 * <p> 97 * The following code sets the location of a {@code Window} 98 * at (10, 10) relative to the origin of the physical screen 99 * of the corresponding {@code GraphicsConfiguration}. If the 100 * bounds of the {@code GraphicsConfiguration} is not taken 101 * into account, the {@code Window} location would be set 102 * at (10, 10) relative to the virtual-coordinate system and would appear 103 * on the primary physical screen, which might be different from the 104 * physical screen of the specified {@code GraphicsConfiguration}. 105 * 106 * <pre> 107 * Window w = new Window(Window owner, GraphicsConfiguration gc); 108 * Rectangle bounds = gc.getBounds(); 109 * w.setLocation(10 + bounds.x, 10 + bounds.y); 110 * </pre> 111 * 112 * <p> 113 * Note: the location and size of top-level windows (including 114 * {@code Window}s, {@code Frame}s, and {@code Dialog}s) 115 * are under the control of the desktop's window management system. 116 * Calls to {@code setLocation}, {@code setSize}, and 117 * {@code setBounds} are requests (not directives) which are 118 * forwarded to the window management system. Every effort will be 119 * made to honor such requests. However, in some cases the window 120 * management system may ignore such requests, or modify the requested 121 * geometry in order to place and size the {@code Window} in a way 122 * that more closely matches the desktop settings. 123 * <p> 124 * Due to the asynchronous nature of native event handling, the results 125 * returned by {@code getBounds}, {@code getLocation}, 126 * {@code getLocationOnScreen}, and {@code getSize} might not 127 * reflect the actual geometry of the Window on screen until the last 128 * request has been processed. During the processing of subsequent 129 * requests these values might change accordingly while the window 130 * management system fulfills the requests. 131 * <p> 132 * An application may set the size and location of an invisible 133 * {@code Window} arbitrarily, but the window management system may 134 * subsequently change its size and/or location when the 135 * {@code Window} is made visible. One or more {@code ComponentEvent}s 136 * will be generated to indicate the new geometry. 137 * <p> 138 * Windows are capable of generating the following WindowEvents: 139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 140 * 141 * @author Sami Shaio 142 * @author Arthur van Hoff 143 * @see WindowEvent 144 * @see #addWindowListener 145 * @see java.awt.BorderLayout 146 * @since JDK1.0 147 */ 148 public class Window extends Container implements Accessible { 149 150 /** 151 * Enumeration of available <i>window types</i>. 152 * 153 * A window type defines the generic visual appearance and behavior of a 154 * top-level window. For example, the type may affect the kind of 155 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 156 * <p> 157 * Some platforms may not fully support a certain window type. Depending on 158 * the level of support, some properties of the window type may be 159 * disobeyed. 160 * 161 * @see #getType 162 * @see #setType 163 * @since 1.7 164 */ 165 public static enum Type { 166 /** 167 * Represents a <i>normal</i> window. 168 * 169 * This is the default type for objects of the {@code Window} class or 170 * its descendants. Use this type for regular top-level windows. 171 */ 172 NORMAL, 173 174 /** 175 * Represents a <i>utility</i> window. 176 * 177 * A utility window is usually a small window such as a toolbar or a 178 * palette. The native system may render the window with smaller 179 * title-bar if the window is either a {@code Frame} or a {@code 180 * Dialog} object, and if it has its decorations enabled. 181 */ 182 UTILITY, 183 184 /** 185 * Represents a <i>popup</i> window. 186 * 187 * A popup window is a temporary window such as a drop-down menu or a 188 * tooltip. On some platforms, windows of that type may be forcibly 189 * made undecorated even if they are instances of the {@code Frame} or 190 * {@code Dialog} class, and have decorations enabled. 191 */ 192 POPUP 193 } 194 195 /** 196 * This represents the warning message that is 197 * to be displayed in a non secure window. ie : 198 * a window that has a security manager installed that denies 199 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 200 * This message can be displayed anywhere in the window. 201 * 202 * @serial 203 * @see #getWarningString 204 */ 205 String warningString; 206 207 /** 208 * {@code icons} is the graphical way we can 209 * represent the frames and dialogs. 210 * {@code Window} can't display icon but it's 211 * being inherited by owned {@code Dialog}s. 212 * 213 * @serial 214 * @see #getIconImages 215 * @see #setIconImages 216 */ 217 transient java.util.List<Image> icons; 218 219 /** 220 * Holds the reference to the component which last had focus in this window 221 * before it lost focus. 222 */ 223 private transient Component temporaryLostComponent; 224 225 static boolean systemSyncLWRequests = false; 226 boolean syncLWRequests = false; 227 transient boolean beforeFirstShow = true; 228 private transient boolean disposing = false; 229 transient WindowDisposerRecord disposerRecord = null; 230 231 static final int OPENED = 0x01; 232 233 /** 234 * An Integer value representing the Window State. 235 * 236 * @serial 237 * @since 1.2 238 * @see #show 239 */ 240 int state; 241 242 /** 243 * A boolean value representing Window always-on-top state 244 * @since 1.5 245 * @serial 246 * @see #setAlwaysOnTop 247 * @see #isAlwaysOnTop 248 */ 249 private boolean alwaysOnTop; 250 251 /** 252 * Contains all the windows that have a peer object associated, 253 * i. e. between addNotify() and removeNotify() calls. The list 254 * of all Window instances can be obtained from AppContext object. 255 * 256 * @since 1.6 257 */ 258 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 259 260 /** 261 * A vector containing all the windows this 262 * window currently owns. 263 * @since 1.2 264 * @see #getOwnedWindows 265 */ 266 transient Vector<WeakReference<Window>> ownedWindowList = 267 new Vector<WeakReference<Window>>(); 268 269 /* 270 * We insert a weak reference into the Vector of all Windows in AppContext 271 * instead of 'this' so that garbage collection can still take place 272 * correctly. 273 */ 274 private transient WeakReference<Window> weakThis; 275 276 transient boolean showWithParent; 277 278 /** 279 * Contains the modal dialog that blocks this window, or null 280 * if the window is unblocked. 281 * 282 * @since 1.6 283 */ 284 transient Dialog modalBlocker; 285 286 /** 287 * @serial 288 * 289 * @see java.awt.Dialog.ModalExclusionType 290 * @see #getModalExclusionType 291 * @see #setModalExclusionType 292 * 293 * @since 1.6 294 */ 295 Dialog.ModalExclusionType modalExclusionType; 296 297 transient WindowListener windowListener; 298 transient WindowStateListener windowStateListener; 299 transient WindowFocusListener windowFocusListener; 300 301 transient InputContext inputContext; 302 private transient Object inputContextLock = new Object(); 303 304 /** 305 * Unused. Maintained for serialization backward-compatibility. 306 * 307 * @serial 308 * @since 1.2 309 */ 310 private FocusManager focusMgr; 311 312 /** 313 * Indicates whether this Window can become the focused Window. 314 * 315 * @serial 316 * @see #getFocusableWindowState 317 * @see #setFocusableWindowState 318 * @since 1.4 319 */ 320 private boolean focusableWindowState = true; 321 322 /** 323 * Indicates whether this window should receive focus on 324 * subsequently being shown (with a call to {@code setVisible(true)}), or 325 * being moved to the front (with a call to {@code toFront()}). 326 * 327 * @serial 328 * @see #setAutoRequestFocus 329 * @see #isAutoRequestFocus 330 * @since 1.7 331 */ 332 private volatile boolean autoRequestFocus = true; 333 334 /* 335 * Indicates that this window is being shown. This flag is set to true at 336 * the beginning of show() and to false at the end of show(). 337 * 338 * @see #show() 339 * @see Dialog#shouldBlock 340 */ 341 transient boolean isInShow = false; 342 343 /** 344 * The opacity level of the window 345 * 346 * @serial 347 * @see #setOpacity(float) 348 * @see #getOpacity() 349 * @since 1.7 350 */ 351 private volatile float opacity = 1.0f; 352 353 /** 354 * The shape assigned to this window. This field is set to {@code null} if 355 * no shape is set (rectangular window). 356 * 357 * @serial 358 * @see #getShape() 359 * @see #setShape(Shape) 360 * @since 1.7 361 */ 362 private Shape shape = null; 363 364 private static final String base = "win"; 365 private static int nameCounter = 0; 366 367 /* 368 * JDK 1.1 serialVersionUID 369 */ 370 private static final long serialVersionUID = 4497834738069338734L; 371 372 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 373 374 private static final boolean locationByPlatformProp; 375 376 transient boolean isTrayIconWindow = false; 377 378 /** 379 * These fields are initialized in the native peer code 380 * or via AWTAccessor's WindowAccessor. 381 */ 382 private transient volatile int securityWarningWidth = 0; 383 private transient volatile int securityWarningHeight = 0; 384 385 /** 386 * These fields represent the desired location for the security 387 * warning if this window is untrusted. 388 * See com.sun.awt.SecurityWarning for more details. 389 */ 390 private transient double securityWarningPointX = 2.0; 391 private transient double securityWarningPointY = 0.0; 392 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 393 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 394 395 static { 396 /* ensure that the necessary native libraries are loaded */ 397 Toolkit.loadLibraries(); 398 if (!GraphicsEnvironment.isHeadless()) { 399 initIDs(); 400 } 401 402 String s = java.security.AccessController.doPrivileged( 403 new GetPropertyAction("java.awt.syncLWRequests")); 404 systemSyncLWRequests = (s != null && s.equals("true")); 405 s = java.security.AccessController.doPrivileged( 406 new GetPropertyAction("java.awt.Window.locationByPlatform")); 407 locationByPlatformProp = (s != null && s.equals("true")); 408 } 409 410 /** 411 * Initialize JNI field and method IDs for fields that may be 412 accessed from C. 413 */ 414 private static native void initIDs(); 415 416 /** 417 * Constructs a new, initially invisible window in default size with the 418 * specified {@code GraphicsConfiguration}. 419 * <p> 420 * If there is a security manager, then it is invoked to check 421 * {@code AWTPermission("showWindowWithoutWarningBanner")} 422 * to determine whether or not the window must be displayed with 423 * a warning banner. 424 * 425 * @param gc the {@code GraphicsConfiguration} of the target screen 426 * device. If {@code gc} is {@code null}, the system default 427 * {@code GraphicsConfiguration} is assumed 428 * @exception IllegalArgumentException if {@code gc} 429 * is not from a screen device 430 * @exception HeadlessException when 431 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 432 * 433 * @see java.awt.GraphicsEnvironment#isHeadless 434 */ 435 Window(GraphicsConfiguration gc) { 436 init(gc); 437 } 438 439 transient Object anchor = new Object(); 440 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 441 WeakReference<Window> owner; 442 final WeakReference<Window> weakThis; 443 final WeakReference<AppContext> context; 444 445 WindowDisposerRecord(AppContext context, Window victim) { 446 weakThis = victim.weakThis; 447 this.context = new WeakReference<AppContext>(context); 448 } 449 450 public void updateOwner() { 451 Window victim = weakThis.get(); 452 owner = (victim == null) 453 ? null 454 : new WeakReference<Window>(victim.getOwner()); 455 } 456 457 public void dispose() { 458 if (owner != null) { 459 Window parent = owner.get(); 460 if (parent != null) { 461 parent.removeOwnedWindow(weakThis); 462 } 463 } 464 AppContext ac = context.get(); 465 if (null != ac) { 466 Window.removeFromWindowList(ac, weakThis); 467 } 468 } 469 } 470 471 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 472 GraphicsEnvironment.checkHeadless(); 473 474 if (gc == null) { 475 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 476 getDefaultScreenDevice().getDefaultConfiguration(); 477 } 478 setGraphicsConfiguration(gc); 479 480 return gc; 481 } 482 483 private void init(GraphicsConfiguration gc) { 484 GraphicsEnvironment.checkHeadless(); 485 486 syncLWRequests = systemSyncLWRequests; 487 488 weakThis = new WeakReference<Window>(this); 489 addToWindowList(); 490 491 setWarningString(); 492 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 493 this.visible = false; 494 495 gc = initGC(gc); 496 497 if (gc.getDevice().getType() != 498 GraphicsDevice.TYPE_RASTER_SCREEN) { 499 throw new IllegalArgumentException("not a screen device"); 500 } 501 setLayout(new BorderLayout()); 502 503 /* offset the initial location with the original of the screen */ 504 /* and any insets */ 505 Rectangle screenBounds = gc.getBounds(); 506 Insets screenInsets = getToolkit().getScreenInsets(gc); 507 int x = getX() + screenBounds.x + screenInsets.left; 508 int y = getY() + screenBounds.y + screenInsets.top; 509 if (x != this.x || y != this.y) { 510 setLocation(x, y); 511 /* reset after setLocation */ 512 setLocationByPlatform(locationByPlatformProp); 513 } 514 515 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 516 disposerRecord = new WindowDisposerRecord(appContext, this); 517 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 518 519 SunToolkit.checkAndSetPolicy(this); 520 } 521 522 /** 523 * Constructs a new, initially invisible window in the default size. 524 * <p> 525 * If there is a security manager set, it is invoked to check 526 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 527 * If that check fails with a {@code SecurityException} then a warning 528 * banner is created. 529 * 530 * @exception HeadlessException when 531 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 532 * 533 * @see java.awt.GraphicsEnvironment#isHeadless 534 */ 535 Window() throws HeadlessException { 536 GraphicsEnvironment.checkHeadless(); 537 init((GraphicsConfiguration)null); 538 } 539 540 /** 541 * Constructs a new, initially invisible window with the specified 542 * {@code Frame} as its owner. The window will not be focusable 543 * unless its owner is showing on the screen. 544 * <p> 545 * If there is a security manager set, it is invoked to check 546 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 547 * If that check fails with a {@code SecurityException} then a warning 548 * banner is created. 549 * 550 * @param owner the {@code Frame} to act as owner or {@code null} 551 * if this window has no owner 552 * @exception IllegalArgumentException if the {@code owner}'s 553 * {@code GraphicsConfiguration} is not from a screen device 554 * @exception HeadlessException when 555 * {@code GraphicsEnvironment.isHeadless} returns {@code true} 556 * 557 * @see java.awt.GraphicsEnvironment#isHeadless 558 * @see #isShowing 559 */ 560 public Window(Frame owner) { 561 this(owner == null ? (GraphicsConfiguration)null : 562 owner.getGraphicsConfiguration()); 563 ownedInit(owner); 564 } 565 566 /** 567 * Constructs a new, initially invisible window with the specified 568 * {@code Window} as its owner. This window will not be focusable 569 * unless its nearest owning {@code Frame} or {@code Dialog} 570 * is showing on the screen. 571 * <p> 572 * If there is a security manager set, it is invoked to check 573 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 574 * If that check fails with a {@code SecurityException} then a 575 * warning banner is created. 576 * 577 * @param owner the {@code Window} to act as owner or 578 * {@code null} if this window has no owner 579 * @exception IllegalArgumentException if the {@code owner}'s 580 * {@code GraphicsConfiguration} is not from a screen device 581 * @exception HeadlessException when 582 * {@code GraphicsEnvironment.isHeadless()} returns 583 * {@code true} 584 * 585 * @see java.awt.GraphicsEnvironment#isHeadless 586 * @see #isShowing 587 * 588 * @since 1.2 589 */ 590 public Window(Window owner) { 591 this(owner == null ? (GraphicsConfiguration)null : 592 owner.getGraphicsConfiguration()); 593 ownedInit(owner); 594 } 595 596 /** 597 * Constructs a new, initially invisible window with the specified owner 598 * {@code Window} and a {@code GraphicsConfiguration} 599 * of a screen device. The Window will not be focusable unless 600 * its nearest owning {@code Frame} or {@code Dialog} 601 * is showing on the screen. 602 * <p> 603 * If there is a security manager set, it is invoked to check 604 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that 605 * check fails with a {@code SecurityException} then a warning banner 606 * is created. 607 * 608 * @param owner the window to act as owner or {@code null} 609 * if this window has no owner 610 * @param gc the {@code GraphicsConfiguration} of the target 611 * screen device; if {@code gc} is {@code null}, 612 * the system default {@code GraphicsConfiguration} is assumed 613 * @exception IllegalArgumentException if {@code gc} 614 * is not from a screen device 615 * @exception HeadlessException when 616 * {@code GraphicsEnvironment.isHeadless()} returns 617 * {@code true} 618 * 619 * @see java.awt.GraphicsEnvironment#isHeadless 620 * @see GraphicsConfiguration#getBounds 621 * @see #isShowing 622 * @since 1.3 623 */ 624 public Window(Window owner, GraphicsConfiguration gc) { 625 this(gc); 626 ownedInit(owner); 627 } 628 629 private void ownedInit(Window owner) { 630 this.parent = owner; 631 if (owner != null) { 632 owner.addOwnedWindow(weakThis); 633 if (owner.isAlwaysOnTop()) { 634 try { 635 setAlwaysOnTop(true); 636 } catch (SecurityException ignore) { 637 } 638 } 639 } 640 641 // WindowDisposerRecord requires a proper value of parent field. 642 disposerRecord.updateOwner(); 643 } 644 645 /** 646 * Construct a name for this component. Called by getName() when the 647 * name is null. 648 */ 649 String constructComponentName() { 650 synchronized (Window.class) { 651 return base + nameCounter++; 652 } 653 } 654 655 /** 656 * Returns the sequence of images to be displayed as the icon for this window. 657 * <p> 658 * This method returns a copy of the internally stored list, so all operations 659 * on the returned object will not affect the window's behavior. 660 * 661 * @return the copy of icon images' list for this window, or 662 * empty list if this window doesn't have icon images. 663 * @see #setIconImages 664 * @see #setIconImage(Image) 665 * @since 1.6 666 */ 667 public java.util.List<Image> getIconImages() { 668 java.util.List<Image> icons = this.icons; 669 if (icons == null || icons.size() == 0) { 670 return new ArrayList<Image>(); 671 } 672 return new ArrayList<Image>(icons); 673 } 674 675 /** 676 * Sets the sequence of images to be displayed as the icon 677 * for this window. Subsequent calls to {@code getIconImages} will 678 * always return a copy of the {@code icons} list. 679 * <p> 680 * Depending on the platform capabilities one or several images 681 * of different dimensions will be used as the window's icon. 682 * <p> 683 * The {@code icons} list is scanned for the images of most 684 * appropriate dimensions from the beginning. If the list contains 685 * several images of the same size, the first will be used. 686 * <p> 687 * Ownerless windows with no icon specified use platfrom-default icon. 688 * The icon of an owned window may be inherited from the owner 689 * unless explicitly overridden. 690 * Setting the icon to {@code null} or empty list restores 691 * the default behavior. 692 * <p> 693 * Note : Native windowing systems may use different images of differing 694 * dimensions to represent a window, depending on the context (e.g. 695 * window decoration, window list, taskbar, etc.). They could also use 696 * just a single image for all contexts or no image at all. 697 * 698 * @param icons the list of icon images to be displayed. 699 * @see #getIconImages() 700 * @see #setIconImage(Image) 701 * @since 1.6 702 */ 703 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 704 this.icons = (icons == null) ? new ArrayList<Image>() : 705 new ArrayList<Image>(icons); 706 WindowPeer peer = (WindowPeer)this.peer; 707 if (peer != null) { 708 peer.updateIconImages(); 709 } 710 // Always send a property change event 711 firePropertyChange("iconImage", null, null); 712 } 713 714 /** 715 * Sets the image to be displayed as the icon for this window. 716 * <p> 717 * This method can be used instead of {@link #setIconImages setIconImages()} 718 * to specify a single image as a window's icon. 719 * <p> 720 * The following statement: 721 * <pre> 722 * setIconImage(image); 723 * </pre> 724 * is equivalent to: 725 * <pre> 726 * ArrayList<Image> imageList = new ArrayList<Image>(); 727 * imageList.add(image); 728 * setIconImages(imageList); 729 * </pre> 730 * <p> 731 * Note : Native windowing systems may use different images of differing 732 * dimensions to represent a window, depending on the context (e.g. 733 * window decoration, window list, taskbar, etc.). They could also use 734 * just a single image for all contexts or no image at all. 735 * 736 * @param image the icon image to be displayed. 737 * @see #setIconImages 738 * @see #getIconImages() 739 * @since 1.6 740 */ 741 public void setIconImage(Image image) { 742 ArrayList<Image> imageList = new ArrayList<Image>(); 743 if (image != null) { 744 imageList.add(image); 745 } 746 setIconImages(imageList); 747 } 748 749 /** 750 * Makes this Window displayable by creating the connection to its 751 * native screen resource. 752 * This method is called internally by the toolkit and should 753 * not be called directly by programs. 754 * @see Component#isDisplayable 755 * @see Container#removeNotify 756 * @since JDK1.0 757 */ 758 public void addNotify() { 759 synchronized (getTreeLock()) { 760 Container parent = this.parent; 761 if (parent != null && parent.getPeer() == null) { 762 parent.addNotify(); 763 } 764 if (peer == null) { 765 peer = getToolkit().createWindow(this); 766 } 767 synchronized (allWindows) { 768 allWindows.add(this); 769 } 770 super.addNotify(); 771 } 772 } 773 774 /** 775 * {@inheritDoc} 776 */ 777 public void removeNotify() { 778 synchronized (getTreeLock()) { 779 synchronized (allWindows) { 780 allWindows.remove(this); 781 } 782 super.removeNotify(); 783 } 784 } 785 786 /** 787 * Causes this Window to be sized to fit the preferred size 788 * and layouts of its subcomponents. The resulting width and 789 * height of the window are automatically enlarged if either 790 * of dimensions is less than the minimum size as specified 791 * by the previous call to the {@code setMinimumSize} method. 792 * <p> 793 * If the window and/or its owner are not displayable yet, 794 * both of them are made displayable before calculating 795 * the preferred size. The Window is validated after its 796 * size is being calculated. 797 * 798 * @see Component#isDisplayable 799 * @see #setMinimumSize 800 */ 801 public void pack() { 802 Container parent = this.parent; 803 if (parent != null && parent.getPeer() == null) { 804 parent.addNotify(); 805 } 806 if (peer == null) { 807 addNotify(); 808 } 809 Dimension newSize = getPreferredSize(); 810 if (peer != null) { 811 setClientSize(newSize.width, newSize.height); 812 } 813 814 if(beforeFirstShow) { 815 isPacked = true; 816 } 817 818 validateUnconditionally(); 819 } 820 821 /** 822 * Sets the minimum size of this window to a constant 823 * value. Subsequent calls to {@code getMinimumSize} 824 * will always return this value. If current window's 825 * size is less than {@code minimumSize} the size of the 826 * window is automatically enlarged to honor the minimum size. 827 * <p> 828 * If the {@code setSize} or {@code setBounds} methods 829 * are called afterwards with a width or height less than 830 * that was specified by the {@code setMinimumSize} method 831 * the window is automatically enlarged to meet 832 * the {@code minimumSize} value. The {@code minimumSize} 833 * value also affects the behaviour of the {@code pack} method. 834 * <p> 835 * The default behavior is restored by setting the minimum size 836 * parameter to the {@code null} value. 837 * <p> 838 * Resizing operation may be restricted if the user tries 839 * to resize window below the {@code minimumSize} value. 840 * This behaviour is platform-dependent. 841 * 842 * @param minimumSize the new minimum size of this window 843 * @see Component#setMinimumSize 844 * @see #getMinimumSize 845 * @see #isMinimumSizeSet 846 * @see #setSize(Dimension) 847 * @see #pack 848 * @since 1.6 849 */ 850 public void setMinimumSize(Dimension minimumSize) { 851 synchronized (getTreeLock()) { 852 super.setMinimumSize(minimumSize); 853 Dimension size = getSize(); 854 if (isMinimumSizeSet()) { 855 if (size.width < minimumSize.width || size.height < minimumSize.height) { 856 int nw = Math.max(width, minimumSize.width); 857 int nh = Math.max(height, minimumSize.height); 858 setSize(nw, nh); 859 } 860 } 861 if (peer != null) { 862 ((WindowPeer)peer).updateMinimumSize(); 863 } 864 } 865 } 866 867 /** 868 * {@inheritDoc} 869 * <p> 870 * The {@code d.width} and {@code d.height} values 871 * are automatically enlarged if either is less than 872 * the minimum size as specified by previous call to 873 * {@code setMinimumSize}. 874 * <p> 875 * The method changes the geometry-related data. Therefore, 876 * the native windowing system may ignore such requests, or it may modify 877 * the requested data, so that the {@code Window} object is placed and sized 878 * in a way that corresponds closely to the desktop settings. 879 * 880 * @see #getSize 881 * @see #setBounds 882 * @see #setMinimumSize 883 * @since 1.6 884 */ 885 public void setSize(Dimension d) { 886 super.setSize(d); 887 } 888 889 /** 890 * {@inheritDoc} 891 * <p> 892 * The {@code width} and {@code height} values 893 * are automatically enlarged if either is less than 894 * the minimum size as specified by previous call to 895 * {@code setMinimumSize}. 896 * <p> 897 * The method changes the geometry-related data. Therefore, 898 * the native windowing system may ignore such requests, or it may modify 899 * the requested data, so that the {@code Window} object is placed and sized 900 * in a way that corresponds closely to the desktop settings. 901 * 902 * @see #getSize 903 * @see #setBounds 904 * @see #setMinimumSize 905 * @since 1.6 906 */ 907 public void setSize(int width, int height) { 908 super.setSize(width, height); 909 } 910 911 /** 912 * {@inheritDoc} 913 * <p> 914 * The method changes the geometry-related data. Therefore, 915 * the native windowing system may ignore such requests, or it may modify 916 * the requested data, so that the {@code Window} object is placed and sized 917 * in a way that corresponds closely to the desktop settings. 918 */ 919 @Override 920 public void setLocation(int x, int y) { 921 super.setLocation(x, y); 922 } 923 924 /** 925 * {@inheritDoc} 926 * <p> 927 * The method changes the geometry-related data. Therefore, 928 * the native windowing system may ignore such requests, or it may modify 929 * the requested data, so that the {@code Window} object is placed and sized 930 * in a way that corresponds closely to the desktop settings. 931 */ 932 @Override 933 public void setLocation(Point p) { 934 super.setLocation(p); 935 } 936 937 /** 938 * @deprecated As of JDK version 1.1, 939 * replaced by {@code setBounds(int, int, int, int)}. 940 */ 941 @Deprecated 942 public void reshape(int x, int y, int width, int height) { 943 if (isMinimumSizeSet()) { 944 Dimension minSize = getMinimumSize(); 945 if (width < minSize.width) { 946 width = minSize.width; 947 } 948 if (height < minSize.height) { 949 height = minSize.height; 950 } 951 } 952 super.reshape(x, y, width, height); 953 } 954 955 void setClientSize(int w, int h) { 956 synchronized (getTreeLock()) { 957 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 958 setBounds(x, y, w, h); 959 } 960 } 961 962 static private final AtomicBoolean 963 beforeFirstWindowShown = new AtomicBoolean(true); 964 965 final void closeSplashScreen() { 966 if (isTrayIconWindow) { 967 return; 968 } 969 if (beforeFirstWindowShown.getAndSet(false)) { 970 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 971 // the object if it hasn't been requested by user code explicitly 972 SunToolkit.closeSplashScreen(); 973 SplashScreen.markClosed(); 974 } 975 } 976 977 /** 978 * Shows or hides this {@code Window} depending on the value of parameter 979 * {@code b}. 980 * <p> 981 * If the method shows the window then the window is also made 982 * focused under the following conditions: 983 * <ul> 984 * <li> The {@code Window} meets the requirements outlined in the 985 * {@link #isFocusableWindow} method. 986 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 987 * <li> Native windowing system allows the {@code Window} to get focused. 988 * </ul> 989 * There is an exception for the second condition (the value of the 990 * {@code autoRequestFocus} property). The property is not taken into account if the 991 * window is a modal dialog, which blocks the currently focused window. 992 * <p> 993 * Developers must never assume that the window is the focused or active window 994 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 995 * @param b if {@code true}, makes the {@code Window} visible, 996 * otherwise hides the {@code Window}. 997 * If the {@code Window} and/or its owner 998 * are not yet displayable, both are made displayable. The 999 * {@code Window} will be validated prior to being made visible. 1000 * If the {@code Window} is already visible, this will bring the 1001 * {@code Window} to the front.<p> 1002 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1003 * of its owned children. 1004 * The {@code Window} and its subcomponents can be made visible again 1005 * with a call to {@code #setVisible(true)}. 1006 * @see java.awt.Component#isDisplayable 1007 * @see java.awt.Component#setVisible 1008 * @see java.awt.Window#toFront 1009 * @see java.awt.Window#dispose 1010 * @see java.awt.Window#setAutoRequestFocus 1011 * @see java.awt.Window#isFocusableWindow 1012 */ 1013 public void setVisible(boolean b) { 1014 super.setVisible(b); 1015 } 1016 1017 /** 1018 * Makes the Window visible. If the Window and/or its owner 1019 * are not yet displayable, both are made displayable. The 1020 * Window will be validated prior to being made visible. 1021 * If the Window is already visible, this will bring the Window 1022 * to the front. 1023 * @see Component#isDisplayable 1024 * @see #toFront 1025 * @deprecated As of JDK version 1.5, replaced by 1026 * {@link #setVisible(boolean)}. 1027 */ 1028 @Deprecated 1029 public void show() { 1030 if (peer == null) { 1031 addNotify(); 1032 } 1033 validateUnconditionally(); 1034 1035 isInShow = true; 1036 if (visible) { 1037 toFront(); 1038 } else { 1039 beforeFirstShow = false; 1040 closeSplashScreen(); 1041 Dialog.checkShouldBeBlocked(this); 1042 super.show(); 1043 locationByPlatform = false; 1044 for (int i = 0; i < ownedWindowList.size(); i++) { 1045 Window child = ownedWindowList.elementAt(i).get(); 1046 if ((child != null) && child.showWithParent) { 1047 child.show(); 1048 child.showWithParent = false; 1049 } // endif 1050 } // endfor 1051 if (!isModalBlocked()) { 1052 updateChildrenBlocking(); 1053 } else { 1054 // fix for 6532736: after this window is shown, its blocker 1055 // should be raised to front 1056 modalBlocker.toFront_NoClientCode(); 1057 } 1058 if (this instanceof Frame || this instanceof Dialog) { 1059 updateChildFocusableWindowState(this); 1060 } 1061 } 1062 isInShow = false; 1063 1064 // If first time shown, generate WindowOpened event 1065 if ((state & OPENED) == 0) { 1066 postWindowEvent(WindowEvent.WINDOW_OPENED); 1067 state |= OPENED; 1068 } 1069 } 1070 1071 static void updateChildFocusableWindowState(Window w) { 1072 if (w.getPeer() != null && w.isShowing()) { 1073 ((WindowPeer)w.getPeer()).updateFocusableWindowState(); 1074 } 1075 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1076 Window child = w.ownedWindowList.elementAt(i).get(); 1077 if (child != null) { 1078 updateChildFocusableWindowState(child); 1079 } 1080 } 1081 } 1082 1083 synchronized void postWindowEvent(int id) { 1084 if (windowListener != null 1085 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1086 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1087 WindowEvent e = new WindowEvent(this, id); 1088 Toolkit.getEventQueue().postEvent(e); 1089 } 1090 } 1091 1092 /** 1093 * Hide this Window, its subcomponents, and all of its owned children. 1094 * The Window and its subcomponents can be made visible again 1095 * with a call to {@code show}. 1096 * @see #show 1097 * @see #dispose 1098 * @deprecated As of JDK version 1.5, replaced by 1099 * {@link #setVisible(boolean)}. 1100 */ 1101 @Deprecated 1102 public void hide() { 1103 synchronized(ownedWindowList) { 1104 for (int i = 0; i < ownedWindowList.size(); i++) { 1105 Window child = ownedWindowList.elementAt(i).get(); 1106 if ((child != null) && child.visible) { 1107 child.hide(); 1108 child.showWithParent = true; 1109 } 1110 } 1111 } 1112 if (isModalBlocked()) { 1113 modalBlocker.unblockWindow(this); 1114 } 1115 super.hide(); 1116 locationByPlatform = false; 1117 } 1118 1119 final void clearMostRecentFocusOwnerOnHide() { 1120 /* do nothing */ 1121 } 1122 1123 /** 1124 * Releases all of the native screen resources used by this 1125 * {@code Window}, its subcomponents, and all of its owned 1126 * children. That is, the resources for these {@code Component}s 1127 * will be destroyed, any memory they consume will be returned to the 1128 * OS, and they will be marked as undisplayable. 1129 * <p> 1130 * The {@code Window} and its subcomponents can be made displayable 1131 * again by rebuilding the native resources with a subsequent call to 1132 * {@code pack} or {@code show}. The states of the recreated 1133 * {@code Window} and its subcomponents will be identical to the 1134 * states of these objects at the point where the {@code Window} 1135 * was disposed (not accounting for additional modifications between 1136 * those actions). 1137 * <p> 1138 * <b>Note</b>: When the last displayable window 1139 * within the Java virtual machine (VM) is disposed of, the VM may 1140 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown"> 1141 * AWT Threading Issues</a> for more information. 1142 * @see Component#isDisplayable 1143 * @see #pack 1144 * @see #show 1145 */ 1146 public void dispose() { 1147 doDispose(); 1148 } 1149 1150 /* 1151 * Fix for 4872170. 1152 * If dispose() is called on parent then its children have to be disposed as well 1153 * as reported in javadoc. So we need to implement this functionality even if a 1154 * child overrides dispose() in a wrong way without calling super.dispose(). 1155 */ 1156 void disposeImpl() { 1157 dispose(); 1158 if (getPeer() != null) { 1159 doDispose(); 1160 } 1161 } 1162 1163 void doDispose() { 1164 class DisposeAction implements Runnable { 1165 public void run() { 1166 disposing = true; 1167 try { 1168 // Check if this window is the fullscreen window for the 1169 // device. Exit the fullscreen mode prior to disposing 1170 // of the window if that's the case. 1171 GraphicsDevice gd = getGraphicsConfiguration().getDevice(); 1172 if (gd.getFullScreenWindow() == Window.this) { 1173 gd.setFullScreenWindow(null); 1174 } 1175 1176 Object[] ownedWindowArray; 1177 synchronized(ownedWindowList) { 1178 ownedWindowArray = new Object[ownedWindowList.size()]; 1179 ownedWindowList.copyInto(ownedWindowArray); 1180 } 1181 for (int i = 0; i < ownedWindowArray.length; i++) { 1182 Window child = (Window) (((WeakReference) 1183 (ownedWindowArray[i])).get()); 1184 if (child != null) { 1185 child.disposeImpl(); 1186 } 1187 } 1188 hide(); 1189 beforeFirstShow = true; 1190 removeNotify(); 1191 synchronized (inputContextLock) { 1192 if (inputContext != null) { 1193 inputContext.dispose(); 1194 inputContext = null; 1195 } 1196 } 1197 clearCurrentFocusCycleRootOnHide(); 1198 } finally { 1199 disposing = false; 1200 } 1201 } 1202 } 1203 boolean fireWindowClosedEvent = isDisplayable(); 1204 DisposeAction action = new DisposeAction(); 1205 if (EventQueue.isDispatchThread()) { 1206 action.run(); 1207 } 1208 else { 1209 try { 1210 EventQueue.invokeAndWait(this, action); 1211 } 1212 catch (InterruptedException e) { 1213 System.err.println("Disposal was interrupted:"); 1214 e.printStackTrace(); 1215 } 1216 catch (InvocationTargetException e) { 1217 System.err.println("Exception during disposal:"); 1218 e.printStackTrace(); 1219 } 1220 } 1221 // Execute outside the Runnable because postWindowEvent is 1222 // synchronized on (this). We don't need to synchronize the call 1223 // on the EventQueue anyways. 1224 if (fireWindowClosedEvent) { 1225 postWindowEvent(WindowEvent.WINDOW_CLOSED); 1226 } 1227 } 1228 1229 /* 1230 * Should only be called while holding the tree lock. 1231 * It's overridden here because parent == owner in Window, 1232 * and we shouldn't adjust counter on owner 1233 */ 1234 void adjustListeningChildrenOnParent(long mask, int num) { 1235 } 1236 1237 // Should only be called while holding tree lock 1238 void adjustDecendantsOnParent(int num) { 1239 // do nothing since parent == owner and we shouldn't 1240 // ajust counter on owner 1241 } 1242 1243 /** 1244 * If this Window is visible, brings this Window to the front and may make 1245 * it the focused Window. 1246 * <p> 1247 * Places this Window at the top of the stacking order and shows it in 1248 * front of any other Windows in this VM. No action will take place if this 1249 * Window is not visible. Some platforms do not allow Windows which own 1250 * other Windows to appear on top of those owned Windows. Some platforms 1251 * may not permit this VM to place its Windows above windows of native 1252 * applications, or Windows of other VMs. This permission may depend on 1253 * whether a Window in this VM is already focused. Every attempt will be 1254 * made to move this Window as high as possible in the stacking order; 1255 * however, developers should not assume that this method will move this 1256 * Window above all other windows in every situation. 1257 * <p> 1258 * Developers must never assume that this Window is the focused or active 1259 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED 1260 * event. On platforms where the top-most window is the focused window, this 1261 * method will <b>probably</b> focus this Window (if it is not already focused) 1262 * under the following conditions: 1263 * <ul> 1264 * <li> The window meets the requirements outlined in the 1265 * {@link #isFocusableWindow} method. 1266 * <li> The window's property {@code autoRequestFocus} is of the 1267 * {@code true} value. 1268 * <li> Native windowing system allows the window to get focused. 1269 * </ul> 1270 * On platforms where the stacking order does not typically affect the focused 1271 * window, this method will <b>probably</b> leave the focused and active 1272 * Windows unchanged. 1273 * <p> 1274 * If this method causes this Window to be focused, and this Window is a 1275 * Frame or a Dialog, it will also become activated. If this Window is 1276 * focused, but it is not a Frame or a Dialog, then the first Frame or 1277 * Dialog that is an owner of this Window will be activated. 1278 * <p> 1279 * If this window is blocked by modal dialog, then the blocking dialog 1280 * is brought to the front and remains above the blocked window. 1281 * 1282 * @see #toBack 1283 * @see #setAutoRequestFocus 1284 * @see #isFocusableWindow 1285 */ 1286 public void toFront() { 1287 toFront_NoClientCode(); 1288 } 1289 1290 // This functionality is implemented in a final package-private method 1291 // to insure that it cannot be overridden by client subclasses. 1292 final void toFront_NoClientCode() { 1293 if (visible) { 1294 WindowPeer peer = (WindowPeer)this.peer; 1295 if (peer != null) { 1296 peer.toFront(); 1297 } 1298 if (isModalBlocked()) { 1299 modalBlocker.toFront_NoClientCode(); 1300 } 1301 } 1302 } 1303 1304 /** 1305 * If this Window is visible, sends this Window to the back and may cause 1306 * it to lose focus or activation if it is the focused or active Window. 1307 * <p> 1308 * Places this Window at the bottom of the stacking order and shows it 1309 * behind any other Windows in this VM. No action will take place is this 1310 * Window is not visible. Some platforms do not allow Windows which are 1311 * owned by other Windows to appear below their owners. Every attempt will 1312 * be made to move this Window as low as possible in the stacking order; 1313 * however, developers should not assume that this method will move this 1314 * Window below all other windows in every situation. 1315 * <p> 1316 * Because of variations in native windowing systems, no guarantees about 1317 * changes to the focused and active Windows can be made. Developers must 1318 * never assume that this Window is no longer the focused or active Window 1319 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED 1320 * event. On platforms where the top-most window is the focused window, 1321 * this method will <b>probably</b> cause this Window to lose focus. In 1322 * that case, the next highest, focusable Window in this VM will receive 1323 * focus. On platforms where the stacking order does not typically affect 1324 * the focused window, this method will <b>probably</b> leave the focused 1325 * and active Windows unchanged. 1326 * 1327 * @see #toFront 1328 */ 1329 public void toBack() { 1330 toBack_NoClientCode(); 1331 } 1332 1333 // This functionality is implemented in a final package-private method 1334 // to insure that it cannot be overridden by client subclasses. 1335 final void toBack_NoClientCode() { 1336 if(isAlwaysOnTop()) { 1337 try { 1338 setAlwaysOnTop(false); 1339 }catch(SecurityException e) { 1340 } 1341 } 1342 if (visible) { 1343 WindowPeer peer = (WindowPeer)this.peer; 1344 if (peer != null) { 1345 peer.toBack(); 1346 } 1347 } 1348 } 1349 1350 /** 1351 * Returns the toolkit of this frame. 1352 * @return the toolkit of this window. 1353 * @see Toolkit 1354 * @see Toolkit#getDefaultToolkit 1355 * @see Component#getToolkit 1356 */ 1357 public Toolkit getToolkit() { 1358 return Toolkit.getDefaultToolkit(); 1359 } 1360 1361 /** 1362 * Gets the warning string that is displayed with this window. 1363 * If this window is insecure, the warning string is displayed 1364 * somewhere in the visible area of the window. A window is 1365 * insecure if there is a security manager and the security 1366 * manager denies 1367 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 1368 * <p> 1369 * If the window is secure, then {@code getWarningString} 1370 * returns {@code null}. If the window is insecure, this 1371 * method checks for the system property 1372 * {@code awt.appletWarning} 1373 * and returns the string value of that property. 1374 * @return the warning string for this window. 1375 */ 1376 public final String getWarningString() { 1377 return warningString; 1378 } 1379 1380 private void setWarningString() { 1381 warningString = null; 1382 SecurityManager sm = System.getSecurityManager(); 1383 if (sm != null) { 1384 try { 1385 sm.checkPermission(SecurityConstants.AWT.TOPLEVEL_WINDOW_PERMISSION); 1386 } catch (SecurityException se) { 1387 // make sure the privileged action is only 1388 // for getting the property! We don't want the 1389 // above checkPermission call to always succeed! 1390 warningString = AccessController.doPrivileged( 1391 new GetPropertyAction("awt.appletWarning", 1392 "Java Applet Window")); 1393 } 1394 } 1395 } 1396 1397 /** 1398 * Gets the {@code Locale} object that is associated 1399 * with this window, if the locale has been set. 1400 * If no locale has been set, then the default locale 1401 * is returned. 1402 * @return the locale that is set for this window. 1403 * @see java.util.Locale 1404 * @since JDK1.1 1405 */ 1406 public Locale getLocale() { 1407 if (this.locale == null) { 1408 return Locale.getDefault(); 1409 } 1410 return this.locale; 1411 } 1412 1413 /** 1414 * Gets the input context for this window. A window always has an input context, 1415 * which is shared by subcomponents unless they create and set their own. 1416 * @see Component#getInputContext 1417 * @since 1.2 1418 */ 1419 public InputContext getInputContext() { 1420 synchronized (inputContextLock) { 1421 if (inputContext == null) { 1422 inputContext = InputContext.getInstance(); 1423 } 1424 } 1425 return inputContext; 1426 } 1427 1428 /** 1429 * Set the cursor image to a specified cursor. 1430 * <p> 1431 * The method may have no visual effect if the Java platform 1432 * implementation and/or the native system do not support 1433 * changing the mouse cursor shape. 1434 * @param cursor One of the constants defined 1435 * by the {@code Cursor} class. If this parameter is null 1436 * then the cursor for this window will be set to the type 1437 * Cursor.DEFAULT_CURSOR. 1438 * @see Component#getCursor 1439 * @see Cursor 1440 * @since JDK1.1 1441 */ 1442 public void setCursor(Cursor cursor) { 1443 if (cursor == null) { 1444 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 1445 } 1446 super.setCursor(cursor); 1447 } 1448 1449 /** 1450 * Returns the owner of this window. 1451 * @since 1.2 1452 */ 1453 public Window getOwner() { 1454 return getOwner_NoClientCode(); 1455 } 1456 final Window getOwner_NoClientCode() { 1457 return (Window)parent; 1458 } 1459 1460 /** 1461 * Return an array containing all the windows this 1462 * window currently owns. 1463 * @since 1.2 1464 */ 1465 public Window[] getOwnedWindows() { 1466 return getOwnedWindows_NoClientCode(); 1467 } 1468 final Window[] getOwnedWindows_NoClientCode() { 1469 Window realCopy[]; 1470 1471 synchronized(ownedWindowList) { 1472 // Recall that ownedWindowList is actually a Vector of 1473 // WeakReferences and calling get() on one of these references 1474 // may return null. Make two arrays-- one the size of the 1475 // Vector (fullCopy with size fullSize), and one the size of 1476 // all non-null get()s (realCopy with size realSize). 1477 int fullSize = ownedWindowList.size(); 1478 int realSize = 0; 1479 Window fullCopy[] = new Window[fullSize]; 1480 1481 for (int i = 0; i < fullSize; i++) { 1482 fullCopy[realSize] = ownedWindowList.elementAt(i).get(); 1483 1484 if (fullCopy[realSize] != null) { 1485 realSize++; 1486 } 1487 } 1488 1489 if (fullSize != realSize) { 1490 realCopy = Arrays.copyOf(fullCopy, realSize); 1491 } else { 1492 realCopy = fullCopy; 1493 } 1494 } 1495 1496 return realCopy; 1497 } 1498 1499 boolean isModalBlocked() { 1500 return modalBlocker != null; 1501 } 1502 1503 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) { 1504 this.modalBlocker = blocked ? blocker : null; 1505 if (peerCall) { 1506 WindowPeer peer = (WindowPeer)this.peer; 1507 if (peer != null) { 1508 peer.setModalBlocked(blocker, blocked); 1509 } 1510 } 1511 } 1512 1513 Dialog getModalBlocker() { 1514 return modalBlocker; 1515 } 1516 1517 /* 1518 * Returns a list of all displayable Windows, i. e. all the 1519 * Windows which peer is not null. 1520 * 1521 * @see #addNotify 1522 * @see #removeNotify 1523 */ 1524 static IdentityArrayList<Window> getAllWindows() { 1525 synchronized (allWindows) { 1526 IdentityArrayList<Window> v = new IdentityArrayList<Window>(); 1527 v.addAll(allWindows); 1528 return v; 1529 } 1530 } 1531 1532 static IdentityArrayList<Window> getAllUnblockedWindows() { 1533 synchronized (allWindows) { 1534 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>(); 1535 for (int i = 0; i < allWindows.size(); i++) { 1536 Window w = allWindows.get(i); 1537 if (!w.isModalBlocked()) { 1538 unblocked.add(w); 1539 } 1540 } 1541 return unblocked; 1542 } 1543 } 1544 1545 private static Window[] getWindows(AppContext appContext) { 1546 synchronized (Window.class) { 1547 Window realCopy[]; 1548 @SuppressWarnings("unchecked") 1549 Vector<WeakReference<Window>> windowList = 1550 (Vector<WeakReference<Window>>)appContext.get(Window.class); 1551 if (windowList != null) { 1552 int fullSize = windowList.size(); 1553 int realSize = 0; 1554 Window fullCopy[] = new Window[fullSize]; 1555 for (int i = 0; i < fullSize; i++) { 1556 Window w = windowList.get(i).get(); 1557 if (w != null) { 1558 fullCopy[realSize++] = w; 1559 } 1560 } 1561 if (fullSize != realSize) { 1562 realCopy = Arrays.copyOf(fullCopy, realSize); 1563 } else { 1564 realCopy = fullCopy; 1565 } 1566 } else { 1567 realCopy = new Window[0]; 1568 } 1569 return realCopy; 1570 } 1571 } 1572 1573 /** 1574 * Returns an array of all {@code Window}s, both owned and ownerless, 1575 * created by this application. 1576 * If called from an applet, the array includes only the {@code Window}s 1577 * accessible by that applet. 1578 * <p> 1579 * <b>Warning:</b> this method may return system created windows, such 1580 * as a print dialog. Applications should not assume the existence of 1581 * these dialogs, nor should an application assume anything about these 1582 * dialogs such as component positions, {@code LayoutManager}s 1583 * or serialization. 1584 * 1585 * @see Frame#getFrames 1586 * @see Window#getOwnerlessWindows 1587 * 1588 * @since 1.6 1589 */ 1590 public static Window[] getWindows() { 1591 return getWindows(AppContext.getAppContext()); 1592 } 1593 1594 /** 1595 * Returns an array of all {@code Window}s created by this application 1596 * that have no owner. They include {@code Frame}s and ownerless 1597 * {@code Dialog}s and {@code Window}s. 1598 * If called from an applet, the array includes only the {@code Window}s 1599 * accessible by that applet. 1600 * <p> 1601 * <b>Warning:</b> this method may return system created windows, such 1602 * as a print dialog. Applications should not assume the existence of 1603 * these dialogs, nor should an application assume anything about these 1604 * dialogs such as component positions, {@code LayoutManager}s 1605 * or serialization. 1606 * 1607 * @see Frame#getFrames 1608 * @see Window#getWindows() 1609 * 1610 * @since 1.6 1611 */ 1612 public static Window[] getOwnerlessWindows() { 1613 Window[] allWindows = Window.getWindows(); 1614 1615 int ownerlessCount = 0; 1616 for (Window w : allWindows) { 1617 if (w.getOwner() == null) { 1618 ownerlessCount++; 1619 } 1620 } 1621 1622 Window[] ownerless = new Window[ownerlessCount]; 1623 int c = 0; 1624 for (Window w : allWindows) { 1625 if (w.getOwner() == null) { 1626 ownerless[c++] = w; 1627 } 1628 } 1629 1630 return ownerless; 1631 } 1632 1633 Window getDocumentRoot() { 1634 synchronized (getTreeLock()) { 1635 Window w = this; 1636 while (w.getOwner() != null) { 1637 w = w.getOwner(); 1638 } 1639 return w; 1640 } 1641 } 1642 1643 /** 1644 * Specifies the modal exclusion type for this window. If a window is modal 1645 * excluded, it is not blocked by some modal dialogs. See {@link 1646 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for 1647 * possible modal exclusion types. 1648 * <p> 1649 * If the given type is not supported, {@code NO_EXCLUDE} is used. 1650 * <p> 1651 * Note: changing the modal exclusion type for a visible window may have no 1652 * effect until it is hidden and then shown again. 1653 * 1654 * @param exclusionType the modal exclusion type for this window; a {@code null} 1655 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE 1656 * NO_EXCLUDE} 1657 * @throws SecurityException if the calling thread does not have permission 1658 * to set the modal exclusion property to the window with the given 1659 * {@code exclusionType} 1660 * @see java.awt.Dialog.ModalExclusionType 1661 * @see java.awt.Window#getModalExclusionType 1662 * @see java.awt.Toolkit#isModalExclusionTypeSupported 1663 * 1664 * @since 1.6 1665 */ 1666 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) { 1667 if (exclusionType == null) { 1668 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1669 } 1670 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) { 1671 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1672 } 1673 if (modalExclusionType == exclusionType) { 1674 return; 1675 } 1676 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) { 1677 SecurityManager sm = System.getSecurityManager(); 1678 if (sm != null) { 1679 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION); 1680 } 1681 } 1682 modalExclusionType = exclusionType; 1683 1684 // if we want on-fly changes, we need to uncomment the lines below 1685 // and override the method in Dialog to use modalShow() instead 1686 // of updateChildrenBlocking() 1687 /* 1688 if (isModalBlocked()) { 1689 modalBlocker.unblockWindow(this); 1690 } 1691 Dialog.checkShouldBeBlocked(this); 1692 updateChildrenBlocking(); 1693 */ 1694 } 1695 1696 /** 1697 * Returns the modal exclusion type of this window. 1698 * 1699 * @return the modal exclusion type of this window 1700 * 1701 * @see java.awt.Dialog.ModalExclusionType 1702 * @see java.awt.Window#setModalExclusionType 1703 * 1704 * @since 1.6 1705 */ 1706 public Dialog.ModalExclusionType getModalExclusionType() { 1707 return modalExclusionType; 1708 } 1709 1710 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) { 1711 if ((modalExclusionType != null) && 1712 modalExclusionType.compareTo(exclusionType) >= 0) 1713 { 1714 return true; 1715 } 1716 Window owner = getOwner_NoClientCode(); 1717 return (owner != null) && owner.isModalExcluded(exclusionType); 1718 } 1719 1720 void updateChildrenBlocking() { 1721 Vector<Window> childHierarchy = new Vector<Window>(); 1722 Window[] ownedWindows = getOwnedWindows(); 1723 for (int i = 0; i < ownedWindows.length; i++) { 1724 childHierarchy.add(ownedWindows[i]); 1725 } 1726 int k = 0; 1727 while (k < childHierarchy.size()) { 1728 Window w = childHierarchy.get(k); 1729 if (w.isVisible()) { 1730 if (w.isModalBlocked()) { 1731 Dialog blocker = w.getModalBlocker(); 1732 blocker.unblockWindow(w); 1733 } 1734 Dialog.checkShouldBeBlocked(w); 1735 Window[] wOwned = w.getOwnedWindows(); 1736 for (int j = 0; j < wOwned.length; j++) { 1737 childHierarchy.add(wOwned[j]); 1738 } 1739 } 1740 k++; 1741 } 1742 } 1743 1744 /** 1745 * Adds the specified window listener to receive window events from 1746 * this window. 1747 * If l is null, no exception is thrown and no action is performed. 1748 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1749 * >AWT Threading Issues</a> for details on AWT's threading model. 1750 * 1751 * @param l the window listener 1752 * @see #removeWindowListener 1753 * @see #getWindowListeners 1754 */ 1755 public synchronized void addWindowListener(WindowListener l) { 1756 if (l == null) { 1757 return; 1758 } 1759 newEventsOnly = true; 1760 windowListener = AWTEventMulticaster.add(windowListener, l); 1761 } 1762 1763 /** 1764 * Adds the specified window state listener to receive window 1765 * events from this window. If {@code l} is {@code null}, 1766 * no exception is thrown and no action is performed. 1767 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1768 * >AWT Threading Issues</a> for details on AWT's threading model. 1769 * 1770 * @param l the window state listener 1771 * @see #removeWindowStateListener 1772 * @see #getWindowStateListeners 1773 * @since 1.4 1774 */ 1775 public synchronized void addWindowStateListener(WindowStateListener l) { 1776 if (l == null) { 1777 return; 1778 } 1779 windowStateListener = AWTEventMulticaster.add(windowStateListener, l); 1780 newEventsOnly = true; 1781 } 1782 1783 /** 1784 * Adds the specified window focus listener to receive window events 1785 * from this window. 1786 * If l is null, no exception is thrown and no action is performed. 1787 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1788 * >AWT Threading Issues</a> for details on AWT's threading model. 1789 * 1790 * @param l the window focus listener 1791 * @see #removeWindowFocusListener 1792 * @see #getWindowFocusListeners 1793 * @since 1.4 1794 */ 1795 public synchronized void addWindowFocusListener(WindowFocusListener l) { 1796 if (l == null) { 1797 return; 1798 } 1799 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l); 1800 newEventsOnly = true; 1801 } 1802 1803 /** 1804 * Removes the specified window listener so that it no longer 1805 * receives window events from this window. 1806 * If l is null, no exception is thrown and no action is performed. 1807 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1808 * >AWT Threading Issues</a> for details on AWT's threading model. 1809 * 1810 * @param l the window listener 1811 * @see #addWindowListener 1812 * @see #getWindowListeners 1813 */ 1814 public synchronized void removeWindowListener(WindowListener l) { 1815 if (l == null) { 1816 return; 1817 } 1818 windowListener = AWTEventMulticaster.remove(windowListener, l); 1819 } 1820 1821 /** 1822 * Removes the specified window state listener so that it no 1823 * longer receives window events from this window. If 1824 * {@code l} is {@code null}, no exception is thrown and 1825 * no action is performed. 1826 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1827 * >AWT Threading Issues</a> for details on AWT's threading model. 1828 * 1829 * @param l the window state listener 1830 * @see #addWindowStateListener 1831 * @see #getWindowStateListeners 1832 * @since 1.4 1833 */ 1834 public synchronized void removeWindowStateListener(WindowStateListener l) { 1835 if (l == null) { 1836 return; 1837 } 1838 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l); 1839 } 1840 1841 /** 1842 * Removes the specified window focus listener so that it no longer 1843 * receives window events from this window. 1844 * If l is null, no exception is thrown and no action is performed. 1845 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1846 * >AWT Threading Issues</a> for details on AWT's threading model. 1847 * 1848 * @param l the window focus listener 1849 * @see #addWindowFocusListener 1850 * @see #getWindowFocusListeners 1851 * @since 1.4 1852 */ 1853 public synchronized void removeWindowFocusListener(WindowFocusListener l) { 1854 if (l == null) { 1855 return; 1856 } 1857 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l); 1858 } 1859 1860 /** 1861 * Returns an array of all the window listeners 1862 * registered on this window. 1863 * 1864 * @return all of this window's {@code WindowListener}s 1865 * or an empty array if no window 1866 * listeners are currently registered 1867 * 1868 * @see #addWindowListener 1869 * @see #removeWindowListener 1870 * @since 1.4 1871 */ 1872 public synchronized WindowListener[] getWindowListeners() { 1873 return getListeners(WindowListener.class); 1874 } 1875 1876 /** 1877 * Returns an array of all the window focus listeners 1878 * registered on this window. 1879 * 1880 * @return all of this window's {@code WindowFocusListener}s 1881 * or an empty array if no window focus 1882 * listeners are currently registered 1883 * 1884 * @see #addWindowFocusListener 1885 * @see #removeWindowFocusListener 1886 * @since 1.4 1887 */ 1888 public synchronized WindowFocusListener[] getWindowFocusListeners() { 1889 return getListeners(WindowFocusListener.class); 1890 } 1891 1892 /** 1893 * Returns an array of all the window state listeners 1894 * registered on this window. 1895 * 1896 * @return all of this window's {@code WindowStateListener}s 1897 * or an empty array if no window state 1898 * listeners are currently registered 1899 * 1900 * @see #addWindowStateListener 1901 * @see #removeWindowStateListener 1902 * @since 1.4 1903 */ 1904 public synchronized WindowStateListener[] getWindowStateListeners() { 1905 return getListeners(WindowStateListener.class); 1906 } 1907 1908 1909 /** 1910 * Returns an array of all the objects currently registered 1911 * as <code><em>Foo</em>Listener</code>s 1912 * upon this {@code Window}. 1913 * <code><em>Foo</em>Listener</code>s are registered using the 1914 * <code>add<em>Foo</em>Listener</code> method. 1915 * 1916 * <p> 1917 * 1918 * You can specify the {@code listenerType} argument 1919 * with a class literal, such as 1920 * <code><em>Foo</em>Listener.class</code>. 1921 * For example, you can query a 1922 * {@code Window} {@code w} 1923 * for its window listeners with the following code: 1924 * 1925 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre> 1926 * 1927 * If no such listeners exist, this method returns an empty array. 1928 * 1929 * @param listenerType the type of listeners requested; this parameter 1930 * should specify an interface that descends from 1931 * {@code java.util.EventListener} 1932 * @return an array of all objects registered as 1933 * <code><em>Foo</em>Listener</code>s on this window, 1934 * or an empty array if no such 1935 * listeners have been added 1936 * @exception ClassCastException if {@code listenerType} 1937 * doesn't specify a class or interface that implements 1938 * {@code java.util.EventListener} 1939 * @exception NullPointerException if {@code listenerType} is {@code null} 1940 * 1941 * @see #getWindowListeners 1942 * @since 1.3 1943 */ 1944 public <T extends EventListener> T[] getListeners(Class<T> listenerType) { 1945 EventListener l = null; 1946 if (listenerType == WindowFocusListener.class) { 1947 l = windowFocusListener; 1948 } else if (listenerType == WindowStateListener.class) { 1949 l = windowStateListener; 1950 } else if (listenerType == WindowListener.class) { 1951 l = windowListener; 1952 } else { 1953 return super.getListeners(listenerType); 1954 } 1955 return AWTEventMulticaster.getListeners(l, listenerType); 1956 } 1957 1958 // REMIND: remove when filtering is handled at lower level 1959 boolean eventEnabled(AWTEvent e) { 1960 switch(e.id) { 1961 case WindowEvent.WINDOW_OPENED: 1962 case WindowEvent.WINDOW_CLOSING: 1963 case WindowEvent.WINDOW_CLOSED: 1964 case WindowEvent.WINDOW_ICONIFIED: 1965 case WindowEvent.WINDOW_DEICONIFIED: 1966 case WindowEvent.WINDOW_ACTIVATED: 1967 case WindowEvent.WINDOW_DEACTIVATED: 1968 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 || 1969 windowListener != null) { 1970 return true; 1971 } 1972 return false; 1973 case WindowEvent.WINDOW_GAINED_FOCUS: 1974 case WindowEvent.WINDOW_LOST_FOCUS: 1975 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 || 1976 windowFocusListener != null) { 1977 return true; 1978 } 1979 return false; 1980 case WindowEvent.WINDOW_STATE_CHANGED: 1981 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 || 1982 windowStateListener != null) { 1983 return true; 1984 } 1985 return false; 1986 default: 1987 break; 1988 } 1989 return super.eventEnabled(e); 1990 } 1991 1992 /** 1993 * Processes events on this window. If the event is an 1994 * {@code WindowEvent}, it invokes the 1995 * {@code processWindowEvent} method, else it invokes its 1996 * superclass's {@code processEvent}. 1997 * <p>Note that if the event parameter is {@code null} 1998 * the behavior is unspecified and may result in an 1999 * exception. 2000 * 2001 * @param e the event 2002 */ 2003 protected void processEvent(AWTEvent e) { 2004 if (e instanceof WindowEvent) { 2005 switch (e.getID()) { 2006 case WindowEvent.WINDOW_OPENED: 2007 case WindowEvent.WINDOW_CLOSING: 2008 case WindowEvent.WINDOW_CLOSED: 2009 case WindowEvent.WINDOW_ICONIFIED: 2010 case WindowEvent.WINDOW_DEICONIFIED: 2011 case WindowEvent.WINDOW_ACTIVATED: 2012 case WindowEvent.WINDOW_DEACTIVATED: 2013 processWindowEvent((WindowEvent)e); 2014 break; 2015 case WindowEvent.WINDOW_GAINED_FOCUS: 2016 case WindowEvent.WINDOW_LOST_FOCUS: 2017 processWindowFocusEvent((WindowEvent)e); 2018 break; 2019 case WindowEvent.WINDOW_STATE_CHANGED: 2020 processWindowStateEvent((WindowEvent)e); 2021 break; 2022 } 2023 return; 2024 } 2025 super.processEvent(e); 2026 } 2027 2028 /** 2029 * Processes window events occurring on this window by 2030 * dispatching them to any registered WindowListener objects. 2031 * NOTE: This method will not be called unless window events 2032 * are enabled for this component; this happens when one of the 2033 * following occurs: 2034 * <ul> 2035 * <li>A WindowListener object is registered via 2036 * {@code addWindowListener} 2037 * <li>Window events are enabled via {@code enableEvents} 2038 * </ul> 2039 * <p>Note that if the event parameter is {@code null} 2040 * the behavior is unspecified and may result in an 2041 * exception. 2042 * 2043 * @param e the window event 2044 * @see Component#enableEvents 2045 */ 2046 protected void processWindowEvent(WindowEvent e) { 2047 WindowListener listener = windowListener; 2048 if (listener != null) { 2049 switch(e.getID()) { 2050 case WindowEvent.WINDOW_OPENED: 2051 listener.windowOpened(e); 2052 break; 2053 case WindowEvent.WINDOW_CLOSING: 2054 listener.windowClosing(e); 2055 break; 2056 case WindowEvent.WINDOW_CLOSED: 2057 listener.windowClosed(e); 2058 break; 2059 case WindowEvent.WINDOW_ICONIFIED: 2060 listener.windowIconified(e); 2061 break; 2062 case WindowEvent.WINDOW_DEICONIFIED: 2063 listener.windowDeiconified(e); 2064 break; 2065 case WindowEvent.WINDOW_ACTIVATED: 2066 listener.windowActivated(e); 2067 break; 2068 case WindowEvent.WINDOW_DEACTIVATED: 2069 listener.windowDeactivated(e); 2070 break; 2071 default: 2072 break; 2073 } 2074 } 2075 } 2076 2077 /** 2078 * Processes window focus event occurring on this window by 2079 * dispatching them to any registered WindowFocusListener objects. 2080 * NOTE: this method will not be called unless window focus events 2081 * are enabled for this window. This happens when one of the 2082 * following occurs: 2083 * <ul> 2084 * <li>a WindowFocusListener is registered via 2085 * {@code addWindowFocusListener} 2086 * <li>Window focus events are enabled via {@code enableEvents} 2087 * </ul> 2088 * <p>Note that if the event parameter is {@code null} 2089 * the behavior is unspecified and may result in an 2090 * exception. 2091 * 2092 * @param e the window focus event 2093 * @see Component#enableEvents 2094 * @since 1.4 2095 */ 2096 protected void processWindowFocusEvent(WindowEvent e) { 2097 WindowFocusListener listener = windowFocusListener; 2098 if (listener != null) { 2099 switch (e.getID()) { 2100 case WindowEvent.WINDOW_GAINED_FOCUS: 2101 listener.windowGainedFocus(e); 2102 break; 2103 case WindowEvent.WINDOW_LOST_FOCUS: 2104 listener.windowLostFocus(e); 2105 break; 2106 default: 2107 break; 2108 } 2109 } 2110 } 2111 2112 /** 2113 * Processes window state event occurring on this window by 2114 * dispatching them to any registered {@code WindowStateListener} 2115 * objects. 2116 * NOTE: this method will not be called unless window state events 2117 * are enabled for this window. This happens when one of the 2118 * following occurs: 2119 * <ul> 2120 * <li>a {@code WindowStateListener} is registered via 2121 * {@code addWindowStateListener} 2122 * <li>window state events are enabled via {@code enableEvents} 2123 * </ul> 2124 * <p>Note that if the event parameter is {@code null} 2125 * the behavior is unspecified and may result in an 2126 * exception. 2127 * 2128 * @param e the window state event 2129 * @see java.awt.Component#enableEvents 2130 * @since 1.4 2131 */ 2132 protected void processWindowStateEvent(WindowEvent e) { 2133 WindowStateListener listener = windowStateListener; 2134 if (listener != null) { 2135 switch (e.getID()) { 2136 case WindowEvent.WINDOW_STATE_CHANGED: 2137 listener.windowStateChanged(e); 2138 break; 2139 default: 2140 break; 2141 } 2142 } 2143 } 2144 2145 /** 2146 * Implements a debugging hook -- checks to see if 2147 * the user has typed <i>control-shift-F1</i>. If so, 2148 * the list of child windows is dumped to {@code System.out}. 2149 * @param e the keyboard event 2150 */ 2151 void preProcessKeyEvent(KeyEvent e) { 2152 // Dump the list of child windows to System.out. 2153 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 && 2154 e.isControlDown() && e.isShiftDown() && 2155 e.getID() == KeyEvent.KEY_PRESSED) { 2156 list(System.out, 0); 2157 } 2158 } 2159 2160 void postProcessKeyEvent(KeyEvent e) { 2161 // Do nothing 2162 } 2163 2164 2165 /** 2166 * Sets whether this window should always be above other windows. If 2167 * there are multiple always-on-top windows, their relative order is 2168 * unspecified and platform dependent. 2169 * <p> 2170 * If some other window is already always-on-top then the 2171 * relative order between these windows is unspecified (depends on 2172 * platform). No window can be brought to be over the always-on-top 2173 * window except maybe another always-on-top window. 2174 * <p> 2175 * All windows owned by an always-on-top window inherit this state and 2176 * automatically become always-on-top. If a window ceases to be 2177 * always-on-top, the windows that it owns will no longer be 2178 * always-on-top. When an always-on-top window is sent {@link #toBack 2179 * toBack}, its always-on-top state is set to {@code false}. 2180 * 2181 * <p> When this method is called on a window with a value of 2182 * {@code true}, and the window is visible and the platform 2183 * supports always-on-top for this window, the window is immediately 2184 * brought forward, "sticking" it in the top-most position. If the 2185 * window isn`t currently visible, this method sets the always-on-top 2186 * state to {@code true} but does not bring the window forward. 2187 * When the window is later shown, it will be always-on-top. 2188 * 2189 * <p> When this method is called on a window with a value of 2190 * {@code false} the always-on-top state is set to normal. It may also 2191 * cause an unspecified, platform-dependent change in the z-order of 2192 * top-level windows, but other always-on-top windows will remain in 2193 * top-most position. Calling this method with a value of {@code false} 2194 * on a window that has a normal state has no effect. 2195 * 2196 * <p><b>Note</b>: some platforms might not support always-on-top 2197 * windows. To detect if always-on-top windows are supported by the 2198 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and 2199 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode 2200 * isn't supported for this window or this window's toolkit does not 2201 * support always-on-top windows, calling this method has no effect. 2202 * <p> 2203 * If a SecurityManager is installed, the calling thread must be 2204 * granted the AWTPermission "setWindowAlwaysOnTop" in 2205 * order to set the value of this property. If this 2206 * permission is not granted, this method will throw a 2207 * SecurityException, and the current value of the property will 2208 * be left unchanged. 2209 * 2210 * @param alwaysOnTop true if the window should always be above other 2211 * windows 2212 * @throws SecurityException if the calling thread does not have 2213 * permission to set the value of always-on-top property 2214 * 2215 * @see #isAlwaysOnTop 2216 * @see #toFront 2217 * @see #toBack 2218 * @see AWTPermission 2219 * @see #isAlwaysOnTopSupported 2220 * @see #getToolkit 2221 * @see Toolkit#isAlwaysOnTopSupported 2222 * @since 1.5 2223 */ 2224 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException { 2225 SecurityManager security = System.getSecurityManager(); 2226 if (security != null) { 2227 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION); 2228 } 2229 2230 boolean oldAlwaysOnTop; 2231 synchronized(this) { 2232 oldAlwaysOnTop = this.alwaysOnTop; 2233 this.alwaysOnTop = alwaysOnTop; 2234 } 2235 if (oldAlwaysOnTop != alwaysOnTop ) { 2236 if (isAlwaysOnTopSupported()) { 2237 WindowPeer peer = (WindowPeer)this.peer; 2238 synchronized(getTreeLock()) { 2239 if (peer != null) { 2240 peer.updateAlwaysOnTopState(); 2241 } 2242 } 2243 } 2244 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop); 2245 } 2246 setOwnedWindowsAlwaysOnTop(alwaysOnTop); 2247 } 2248 2249 @SuppressWarnings({"rawtypes", "unchecked"}) 2250 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) { 2251 WeakReference<Window>[] ownedWindowArray; 2252 synchronized (ownedWindowList) { 2253 ownedWindowArray = new WeakReference[ownedWindowList.size()]; 2254 ownedWindowList.copyInto(ownedWindowArray); 2255 } 2256 2257 for (WeakReference<Window> ref : ownedWindowArray) { 2258 Window window = ref.get(); 2259 if (window != null) { 2260 try { 2261 window.setAlwaysOnTop(alwaysOnTop); 2262 } catch (SecurityException ignore) { 2263 } 2264 } 2265 } 2266 } 2267 2268 /** 2269 * Returns whether the always-on-top mode is supported for this 2270 * window. Some platforms may not support always-on-top windows, some 2271 * may support only some kinds of top-level windows; for example, 2272 * a platform may not support always-on-top modal dialogs. 2273 * 2274 * @return {@code true}, if the always-on-top mode is supported for 2275 * this window and this window's toolkit supports always-on-top windows, 2276 * {@code false} otherwise 2277 * 2278 * @see #setAlwaysOnTop(boolean) 2279 * @see #getToolkit 2280 * @see Toolkit#isAlwaysOnTopSupported 2281 * @since 1.6 2282 */ 2283 public boolean isAlwaysOnTopSupported() { 2284 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported(); 2285 } 2286 2287 2288 /** 2289 * Returns whether this window is an always-on-top window. 2290 * @return {@code true}, if the window is in always-on-top state, 2291 * {@code false} otherwise 2292 * @see #setAlwaysOnTop 2293 * @since 1.5 2294 */ 2295 public final boolean isAlwaysOnTop() { 2296 return alwaysOnTop; 2297 } 2298 2299 2300 /** 2301 * Returns the child Component of this Window that has focus if this Window 2302 * is focused; returns null otherwise. 2303 * 2304 * @return the child Component with focus, or null if this Window is not 2305 * focused 2306 * @see #getMostRecentFocusOwner 2307 * @see #isFocused 2308 */ 2309 public Component getFocusOwner() { 2310 return (isFocused()) 2311 ? KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2312 getFocusOwner() 2313 : null; 2314 } 2315 2316 /** 2317 * Returns the child Component of this Window that will receive the focus 2318 * when this Window is focused. If this Window is currently focused, this 2319 * method returns the same Component as {@code getFocusOwner()}. If 2320 * this Window is not focused, then the child Component that most recently 2321 * requested focus will be returned. If no child Component has ever 2322 * requested focus, and this is a focusable Window, then this Window's 2323 * initial focusable Component is returned. If no child Component has ever 2324 * requested focus, and this is a non-focusable Window, null is returned. 2325 * 2326 * @return the child Component that will receive focus when this Window is 2327 * focused 2328 * @see #getFocusOwner 2329 * @see #isFocused 2330 * @see #isFocusableWindow 2331 * @since 1.4 2332 */ 2333 public Component getMostRecentFocusOwner() { 2334 if (isFocused()) { 2335 return getFocusOwner(); 2336 } else { 2337 Component mostRecent = 2338 KeyboardFocusManager.getMostRecentFocusOwner(this); 2339 if (mostRecent != null) { 2340 return mostRecent; 2341 } else { 2342 return (isFocusableWindow()) 2343 ? getFocusTraversalPolicy().getInitialComponent(this) 2344 : null; 2345 } 2346 } 2347 } 2348 2349 /** 2350 * Returns whether this Window is active. Only a Frame or a Dialog may be 2351 * active. The native windowing system may denote the active Window or its 2352 * children with special decorations, such as a highlighted title bar. The 2353 * active Window is always either the focused Window, or the first Frame or 2354 * Dialog that is an owner of the focused Window. 2355 * 2356 * @return whether this is the active Window. 2357 * @see #isFocused 2358 * @since 1.4 2359 */ 2360 public boolean isActive() { 2361 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2362 getActiveWindow() == this); 2363 } 2364 2365 /** 2366 * Returns whether this Window is focused. If there exists a focus owner, 2367 * the focused Window is the Window that is, or contains, that focus owner. 2368 * If there is no focus owner, then no Window is focused. 2369 * <p> 2370 * If the focused Window is a Frame or a Dialog it is also the active 2371 * Window. Otherwise, the active Window is the first Frame or Dialog that 2372 * is an owner of the focused Window. 2373 * 2374 * @return whether this is the focused Window. 2375 * @see #isActive 2376 * @since 1.4 2377 */ 2378 public boolean isFocused() { 2379 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2380 getGlobalFocusedWindow() == this); 2381 } 2382 2383 /** 2384 * Gets a focus traversal key for this Window. (See {@code 2385 * setFocusTraversalKeys} for a full description of each key.) 2386 * <p> 2387 * If the traversal key has not been explicitly set for this Window, 2388 * then this Window's parent's traversal key is returned. If the 2389 * traversal key has not been explicitly set for any of this Window's 2390 * ancestors, then the current KeyboardFocusManager's default traversal key 2391 * is returned. 2392 * 2393 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2394 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2395 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2396 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2397 * @return the AWTKeyStroke for the specified key 2398 * @see Container#setFocusTraversalKeys 2399 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS 2400 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS 2401 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS 2402 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS 2403 * @throws IllegalArgumentException if id is not one of 2404 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2405 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2406 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2407 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2408 * @since 1.4 2409 */ 2410 @SuppressWarnings("unchecked") 2411 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) { 2412 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) { 2413 throw new IllegalArgumentException("invalid focus traversal key identifier"); 2414 } 2415 2416 // Okay to return Set directly because it is an unmodifiable view 2417 @SuppressWarnings("rawtypes") 2418 Set keystrokes = (focusTraversalKeys != null) 2419 ? focusTraversalKeys[id] 2420 : null; 2421 2422 if (keystrokes != null) { 2423 return keystrokes; 2424 } else { 2425 return KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2426 getDefaultFocusTraversalKeys(id); 2427 } 2428 } 2429 2430 /** 2431 * Does nothing because Windows must always be roots of a focus traversal 2432 * cycle. The passed-in value is ignored. 2433 * 2434 * @param focusCycleRoot this value is ignored 2435 * @see #isFocusCycleRoot 2436 * @see Container#setFocusTraversalPolicy 2437 * @see Container#getFocusTraversalPolicy 2438 * @since 1.4 2439 */ 2440 public final void setFocusCycleRoot(boolean focusCycleRoot) { 2441 } 2442 2443 /** 2444 * Always returns {@code true} because all Windows must be roots of a 2445 * focus traversal cycle. 2446 * 2447 * @return {@code true} 2448 * @see #setFocusCycleRoot 2449 * @see Container#setFocusTraversalPolicy 2450 * @see Container#getFocusTraversalPolicy 2451 * @since 1.4 2452 */ 2453 public final boolean isFocusCycleRoot() { 2454 return true; 2455 } 2456 2457 /** 2458 * Always returns {@code null} because Windows have no ancestors; they 2459 * represent the top of the Component hierarchy. 2460 * 2461 * @return {@code null} 2462 * @see Container#isFocusCycleRoot() 2463 * @since 1.4 2464 */ 2465 public final Container getFocusCycleRootAncestor() { 2466 return null; 2467 } 2468 2469 /** 2470 * Returns whether this Window can become the focused Window, that is, 2471 * whether this Window or any of its subcomponents can become the focus 2472 * owner. For a Frame or Dialog to be focusable, its focusable Window state 2473 * must be set to {@code true}. For a Window which is not a Frame or 2474 * Dialog to be focusable, its focusable Window state must be set to 2475 * {@code true}, its nearest owning Frame or Dialog must be 2476 * showing on the screen, and it must contain at least one Component in 2477 * its focus traversal cycle. If any of these conditions is not met, then 2478 * neither this Window nor any of its subcomponents can become the focus 2479 * owner. 2480 * 2481 * @return {@code true} if this Window can be the focused Window; 2482 * {@code false} otherwise 2483 * @see #getFocusableWindowState 2484 * @see #setFocusableWindowState 2485 * @see #isShowing 2486 * @see Component#isFocusable 2487 * @since 1.4 2488 */ 2489 public final boolean isFocusableWindow() { 2490 // If a Window/Frame/Dialog was made non-focusable, then it is always 2491 // non-focusable. 2492 if (!getFocusableWindowState()) { 2493 return false; 2494 } 2495 2496 // All other tests apply only to Windows. 2497 if (this instanceof Frame || this instanceof Dialog) { 2498 return true; 2499 } 2500 2501 // A Window must have at least one Component in its root focus 2502 // traversal cycle to be focusable. 2503 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) { 2504 return false; 2505 } 2506 2507 // A Window's nearest owning Frame or Dialog must be showing on the 2508 // screen. 2509 for (Window owner = getOwner(); owner != null; 2510 owner = owner.getOwner()) 2511 { 2512 if (owner instanceof Frame || owner instanceof Dialog) { 2513 return owner.isShowing(); 2514 } 2515 } 2516 2517 return false; 2518 } 2519 2520 /** 2521 * Returns whether this Window can become the focused Window if it meets 2522 * the other requirements outlined in {@code isFocusableWindow}. If 2523 * this method returns {@code false}, then 2524 * {@code isFocusableWindow} will return {@code false} as well. 2525 * If this method returns {@code true}, then 2526 * {@code isFocusableWindow} may return {@code true} or 2527 * {@code false} depending upon the other requirements which must be 2528 * met in order for a Window to be focusable. 2529 * <p> 2530 * By default, all Windows have a focusable Window state of 2531 * {@code true}. 2532 * 2533 * @return whether this Window can be the focused Window 2534 * @see #isFocusableWindow 2535 * @see #setFocusableWindowState 2536 * @see #isShowing 2537 * @see Component#setFocusable 2538 * @since 1.4 2539 */ 2540 public boolean getFocusableWindowState() { 2541 return focusableWindowState; 2542 } 2543 2544 /** 2545 * Sets whether this Window can become the focused Window if it meets 2546 * the other requirements outlined in {@code isFocusableWindow}. If 2547 * this Window's focusable Window state is set to {@code false}, then 2548 * {@code isFocusableWindow} will return {@code false}. If this 2549 * Window's focusable Window state is set to {@code true}, then 2550 * {@code isFocusableWindow} may return {@code true} or 2551 * {@code false} depending upon the other requirements which must be 2552 * met in order for a Window to be focusable. 2553 * <p> 2554 * Setting a Window's focusability state to {@code false} is the 2555 * standard mechanism for an application to identify to the AWT a Window 2556 * which will be used as a floating palette or toolbar, and thus should be 2557 * a non-focusable Window. 2558 * 2559 * Setting the focusability state on a visible {@code Window} 2560 * can have a delayed effect on some platforms the actual 2561 * change may happen only when the {@code Window} becomes 2562 * hidden and then visible again. To ensure consistent behavior 2563 * across platforms, set the {@code Window}'s focusable state 2564 * when the {@code Window} is invisible and then show it. 2565 * 2566 * @param focusableWindowState whether this Window can be the focused 2567 * Window 2568 * @see #isFocusableWindow 2569 * @see #getFocusableWindowState 2570 * @see #isShowing 2571 * @see Component#setFocusable 2572 * @since 1.4 2573 */ 2574 public void setFocusableWindowState(boolean focusableWindowState) { 2575 boolean oldFocusableWindowState; 2576 synchronized (this) { 2577 oldFocusableWindowState = this.focusableWindowState; 2578 this.focusableWindowState = focusableWindowState; 2579 } 2580 WindowPeer peer = (WindowPeer)this.peer; 2581 if (peer != null) { 2582 peer.updateFocusableWindowState(); 2583 } 2584 firePropertyChange("focusableWindowState", oldFocusableWindowState, 2585 focusableWindowState); 2586 if (oldFocusableWindowState && !focusableWindowState && isFocused()) { 2587 for (Window owner = getOwner(); 2588 owner != null; 2589 owner = owner.getOwner()) 2590 { 2591 Component toFocus = 2592 KeyboardFocusManager.getMostRecentFocusOwner(owner); 2593 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) { 2594 return; 2595 } 2596 } 2597 KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2598 clearGlobalFocusOwnerPriv(); 2599 } 2600 } 2601 2602 /** 2603 * Sets whether this window should receive focus on 2604 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}), 2605 * or being moved to the front (with a call to {@link #toFront}). 2606 * <p> 2607 * Note that {@link #setVisible setVisible(true)} may be called indirectly 2608 * (e.g. when showing an owner of the window makes the window to be shown). 2609 * {@link #toFront} may also be called indirectly (e.g. when 2610 * {@link #setVisible setVisible(true)} is called on already visible window). 2611 * In all such cases this property takes effect as well. 2612 * <p> 2613 * The value of the property is not inherited by owned windows. 2614 * 2615 * @param autoRequestFocus whether this window should be focused on 2616 * subsequently being shown or being moved to the front 2617 * @see #isAutoRequestFocus 2618 * @see #isFocusableWindow 2619 * @see #setVisible 2620 * @see #toFront 2621 * @since 1.7 2622 */ 2623 public void setAutoRequestFocus(boolean autoRequestFocus) { 2624 this.autoRequestFocus = autoRequestFocus; 2625 } 2626 2627 /** 2628 * Returns whether this window should receive focus on subsequently being shown 2629 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front 2630 * (with a call to {@link #toFront}). 2631 * <p> 2632 * By default, the window has {@code autoRequestFocus} value of {@code true}. 2633 * 2634 * @return {@code autoRequestFocus} value 2635 * @see #setAutoRequestFocus 2636 * @since 1.7 2637 */ 2638 public boolean isAutoRequestFocus() { 2639 return autoRequestFocus; 2640 } 2641 2642 /** 2643 * Adds a PropertyChangeListener to the listener list. The listener is 2644 * registered for all bound properties of this class, including the 2645 * following: 2646 * <ul> 2647 * <li>this Window's font ("font")</li> 2648 * <li>this Window's background color ("background")</li> 2649 * <li>this Window's foreground color ("foreground")</li> 2650 * <li>this Window's focusability ("focusable")</li> 2651 * <li>this Window's focus traversal keys enabled state 2652 * ("focusTraversalKeysEnabled")</li> 2653 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2654 * ("forwardFocusTraversalKeys")</li> 2655 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2656 * ("backwardFocusTraversalKeys")</li> 2657 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2658 * ("upCycleFocusTraversalKeys")</li> 2659 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2660 * ("downCycleFocusTraversalKeys")</li> 2661 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2662 * </li> 2663 * <li>this Window's focusable Window state ("focusableWindowState") 2664 * </li> 2665 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2666 * </ul> 2667 * Note that if this Window is inheriting a bound property, then no 2668 * event will be fired in response to a change in the inherited property. 2669 * <p> 2670 * If listener is null, no exception is thrown and no action is performed. 2671 * 2672 * @param listener the PropertyChangeListener to be added 2673 * 2674 * @see Component#removePropertyChangeListener 2675 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener) 2676 */ 2677 public void addPropertyChangeListener(PropertyChangeListener listener) { 2678 super.addPropertyChangeListener(listener); 2679 } 2680 2681 /** 2682 * Adds a PropertyChangeListener to the listener list for a specific 2683 * property. The specified property may be user-defined, or one of the 2684 * following: 2685 * <ul> 2686 * <li>this Window's font ("font")</li> 2687 * <li>this Window's background color ("background")</li> 2688 * <li>this Window's foreground color ("foreground")</li> 2689 * <li>this Window's focusability ("focusable")</li> 2690 * <li>this Window's focus traversal keys enabled state 2691 * ("focusTraversalKeysEnabled")</li> 2692 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2693 * ("forwardFocusTraversalKeys")</li> 2694 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2695 * ("backwardFocusTraversalKeys")</li> 2696 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2697 * ("upCycleFocusTraversalKeys")</li> 2698 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2699 * ("downCycleFocusTraversalKeys")</li> 2700 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2701 * </li> 2702 * <li>this Window's focusable Window state ("focusableWindowState") 2703 * </li> 2704 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2705 * </ul> 2706 * Note that if this Window is inheriting a bound property, then no 2707 * event will be fired in response to a change in the inherited property. 2708 * <p> 2709 * If listener is null, no exception is thrown and no action is performed. 2710 * 2711 * @param propertyName one of the property names listed above 2712 * @param listener the PropertyChangeListener to be added 2713 * 2714 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener) 2715 * @see Component#removePropertyChangeListener 2716 */ 2717 public void addPropertyChangeListener(String propertyName, 2718 PropertyChangeListener listener) { 2719 super.addPropertyChangeListener(propertyName, listener); 2720 } 2721 2722 /** 2723 * Indicates if this container is a validate root. 2724 * <p> 2725 * {@code Window} objects are the validate roots, and, therefore, they 2726 * override this method to return {@code true}. 2727 * 2728 * @return {@code true} 2729 * @since 1.7 2730 * @see java.awt.Container#isValidateRoot 2731 */ 2732 @Override 2733 public boolean isValidateRoot() { 2734 return true; 2735 } 2736 2737 /** 2738 * Dispatches an event to this window or one of its sub components. 2739 * @param e the event 2740 */ 2741 void dispatchEventImpl(AWTEvent e) { 2742 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) { 2743 invalidate(); 2744 validate(); 2745 } 2746 super.dispatchEventImpl(e); 2747 } 2748 2749 /** 2750 * @deprecated As of JDK version 1.1 2751 * replaced by {@code dispatchEvent(AWTEvent)}. 2752 */ 2753 @Deprecated 2754 public boolean postEvent(Event e) { 2755 if (handleEvent(e)) { 2756 e.consume(); 2757 return true; 2758 } 2759 return false; 2760 } 2761 2762 /** 2763 * Checks if this Window is showing on screen. 2764 * @see Component#setVisible 2765 */ 2766 public boolean isShowing() { 2767 return visible; 2768 } 2769 2770 boolean isDisposing() { 2771 return disposing; 2772 } 2773 2774 /** 2775 * @deprecated As of J2SE 1.4, replaced by 2776 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2777 */ 2778 @Deprecated 2779 public void applyResourceBundle(ResourceBundle rb) { 2780 applyComponentOrientation(ComponentOrientation.getOrientation(rb)); 2781 } 2782 2783 /** 2784 * @deprecated As of J2SE 1.4, replaced by 2785 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2786 */ 2787 @Deprecated 2788 public void applyResourceBundle(String rbName) { 2789 applyResourceBundle(ResourceBundle.getBundle(rbName)); 2790 } 2791 2792 /* 2793 * Support for tracking all windows owned by this window 2794 */ 2795 void addOwnedWindow(WeakReference<Window> weakWindow) { 2796 if (weakWindow != null) { 2797 synchronized(ownedWindowList) { 2798 // this if statement should really be an assert, but we don't 2799 // have asserts... 2800 if (!ownedWindowList.contains(weakWindow)) { 2801 ownedWindowList.addElement(weakWindow); 2802 } 2803 } 2804 } 2805 } 2806 2807 void removeOwnedWindow(WeakReference<Window> weakWindow) { 2808 if (weakWindow != null) { 2809 // synchronized block not required since removeElement is 2810 // already synchronized 2811 ownedWindowList.removeElement(weakWindow); 2812 } 2813 } 2814 2815 void connectOwnedWindow(Window child) { 2816 child.parent = this; 2817 addOwnedWindow(child.weakThis); 2818 child.disposerRecord.updateOwner(); 2819 } 2820 2821 private void addToWindowList() { 2822 synchronized (Window.class) { 2823 @SuppressWarnings("unchecked") 2824 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2825 if (windowList == null) { 2826 windowList = new Vector<WeakReference<Window>>(); 2827 appContext.put(Window.class, windowList); 2828 } 2829 windowList.add(weakThis); 2830 } 2831 } 2832 2833 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) { 2834 synchronized (Window.class) { 2835 @SuppressWarnings("unchecked") 2836 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2837 if (windowList != null) { 2838 windowList.remove(weakThis); 2839 } 2840 } 2841 } 2842 2843 private void removeFromWindowList() { 2844 removeFromWindowList(appContext, weakThis); 2845 } 2846 2847 /** 2848 * Window type. 2849 * 2850 * Synchronization: ObjectLock 2851 */ 2852 private Type type = Type.NORMAL; 2853 2854 /** 2855 * Sets the type of the window. 2856 * 2857 * This method can only be called while the window is not displayable. 2858 * 2859 * @throws IllegalComponentStateException if the window 2860 * is displayable. 2861 * @throws IllegalArgumentException if the type is {@code null} 2862 * @see Component#isDisplayable 2863 * @see #getType 2864 * @since 1.7 2865 */ 2866 public void setType(Type type) { 2867 if (type == null) { 2868 throw new IllegalArgumentException("type should not be null."); 2869 } 2870 synchronized (getTreeLock()) { 2871 if (isDisplayable()) { 2872 throw new IllegalComponentStateException( 2873 "The window is displayable."); 2874 } 2875 synchronized (getObjectLock()) { 2876 this.type = type; 2877 } 2878 } 2879 } 2880 2881 /** 2882 * Returns the type of the window. 2883 * 2884 * @see #setType 2885 * @since 1.7 2886 */ 2887 public Type getType() { 2888 synchronized (getObjectLock()) { 2889 return type; 2890 } 2891 } 2892 2893 /** 2894 * The window serialized data version. 2895 * 2896 * @serial 2897 */ 2898 private int windowSerializedDataVersion = 2; 2899 2900 /** 2901 * Writes default serializable fields to stream. Writes 2902 * a list of serializable {@code WindowListener}s and 2903 * {@code WindowFocusListener}s as optional data. 2904 * Writes a list of child windows as optional data. 2905 * Writes a list of icon images as optional data 2906 * 2907 * @param s the {@code ObjectOutputStream} to write 2908 * @serialData {@code null} terminated sequence of 2909 * 0 or more pairs; the pair consists of a {@code String} 2910 * and {@code Object}; the {@code String} 2911 * indicates the type of object and is one of the following: 2912 * {@code windowListenerK} indicating a 2913 * {@code WindowListener} object; 2914 * {@code windowFocusWindowK} indicating a 2915 * {@code WindowFocusListener} object; 2916 * {@code ownedWindowK} indicating a child 2917 * {@code Window} object 2918 * 2919 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2920 * @see Component#windowListenerK 2921 * @see Component#windowFocusListenerK 2922 * @see Component#ownedWindowK 2923 * @see #readObject(ObjectInputStream) 2924 */ 2925 private void writeObject(ObjectOutputStream s) throws IOException { 2926 synchronized (this) { 2927 // Update old focusMgr fields so that our object stream can be read 2928 // by previous releases 2929 focusMgr = new FocusManager(); 2930 focusMgr.focusRoot = this; 2931 focusMgr.focusOwner = getMostRecentFocusOwner(); 2932 2933 s.defaultWriteObject(); 2934 2935 // Clear fields so that we don't keep extra references around 2936 focusMgr = null; 2937 2938 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2939 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2940 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2941 } 2942 2943 s.writeObject(null); 2944 2945 synchronized (ownedWindowList) { 2946 for (int i = 0; i < ownedWindowList.size(); i++) { 2947 Window child = ownedWindowList.elementAt(i).get(); 2948 if (child != null) { 2949 s.writeObject(ownedWindowK); 2950 s.writeObject(child); 2951 } 2952 } 2953 } 2954 s.writeObject(null); 2955 2956 //write icon array 2957 if (icons != null) { 2958 for (Image i : icons) { 2959 if (i instanceof Serializable) { 2960 s.writeObject(i); 2961 } 2962 } 2963 } 2964 s.writeObject(null); 2965 } 2966 2967 // 2968 // Part of deserialization procedure to be called before 2969 // user's code. 2970 // 2971 private void initDeserializedWindow() { 2972 setWarningString(); 2973 inputContextLock = new Object(); 2974 2975 // Deserialized Windows are not yet visible. 2976 visible = false; 2977 2978 weakThis = new WeakReference<>(this); 2979 2980 anchor = new Object(); 2981 disposerRecord = new WindowDisposerRecord(appContext, this); 2982 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 2983 2984 addToWindowList(); 2985 initGC(null); 2986 ownedWindowList = new Vector<>(); 2987 } 2988 2989 private void deserializeResources(ObjectInputStream s) 2990 throws ClassNotFoundException, IOException, HeadlessException { 2991 2992 if (windowSerializedDataVersion < 2) { 2993 // Translate old-style focus tracking to new model. For 1.4 and 2994 // later releases, we'll rely on the Window's initial focusable 2995 // Component. 2996 if (focusMgr != null) { 2997 if (focusMgr.focusOwner != null) { 2998 KeyboardFocusManager. 2999 setMostRecentFocusOwner(this, focusMgr.focusOwner); 3000 } 3001 } 3002 3003 // This field is non-transient and relies on default serialization. 3004 // However, the default value is insufficient, so we need to set 3005 // it explicitly for object data streams prior to 1.4. 3006 focusableWindowState = true; 3007 3008 3009 } 3010 3011 Object keyOrNull; 3012 while(null != (keyOrNull = s.readObject())) { 3013 String key = ((String)keyOrNull).intern(); 3014 3015 if (windowListenerK == key) { 3016 addWindowListener((WindowListener)(s.readObject())); 3017 } else if (windowFocusListenerK == key) { 3018 addWindowFocusListener((WindowFocusListener)(s.readObject())); 3019 } else if (windowStateListenerK == key) { 3020 addWindowStateListener((WindowStateListener)(s.readObject())); 3021 } else // skip value for unrecognized key 3022 s.readObject(); 3023 } 3024 3025 try { 3026 while (null != (keyOrNull = s.readObject())) { 3027 String key = ((String)keyOrNull).intern(); 3028 3029 if (ownedWindowK == key) 3030 connectOwnedWindow((Window) s.readObject()); 3031 3032 else // skip value for unrecognized key 3033 s.readObject(); 3034 } 3035 3036 //read icons 3037 Object obj = s.readObject(); //Throws OptionalDataException 3038 //for pre1.6 objects. 3039 icons = new ArrayList<Image>(); //Frame.readObject() assumes 3040 //pre1.6 version if icons is null. 3041 while (obj != null) { 3042 if (obj instanceof Image) { 3043 icons.add((Image)obj); 3044 } 3045 obj = s.readObject(); 3046 } 3047 } 3048 catch (OptionalDataException e) { 3049 // 1.1 serialized form 3050 // ownedWindowList will be updated by Frame.readObject 3051 } 3052 3053 } 3054 3055 /** 3056 * Reads the {@code ObjectInputStream} and an optional 3057 * list of listeners to receive various events fired by 3058 * the component; also reads a list of 3059 * (possibly {@code null}) child windows. 3060 * Unrecognized keys or values will be ignored. 3061 * 3062 * @param s the {@code ObjectInputStream} to read 3063 * @exception HeadlessException if 3064 * {@code GraphicsEnvironment.isHeadless} returns 3065 * {@code true} 3066 * @see java.awt.GraphicsEnvironment#isHeadless 3067 * @see #writeObject 3068 */ 3069 private void readObject(ObjectInputStream s) 3070 throws ClassNotFoundException, IOException, HeadlessException 3071 { 3072 GraphicsEnvironment.checkHeadless(); 3073 initDeserializedWindow(); 3074 ObjectInputStream.GetField f = s.readFields(); 3075 3076 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3077 state = f.get("state", 0); 3078 focusableWindowState = f.get("focusableWindowState", true); 3079 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3080 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3081 // Note: 1.4 (or later) doesn't use focusMgr 3082 focusMgr = (FocusManager)f.get("focusMgr", null); 3083 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3084 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3085 setModalExclusionType(et); // since 6.0 3086 boolean aot = f.get("alwaysOnTop", false); 3087 if(aot) { 3088 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3089 } 3090 shape = (Shape)f.get("shape", null); 3091 opacity = (Float)f.get("opacity", 1.0f); 3092 3093 this.securityWarningWidth = 0; 3094 this.securityWarningHeight = 0; 3095 this.securityWarningPointX = 2.0; 3096 this.securityWarningPointY = 0.0; 3097 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3098 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3099 3100 deserializeResources(s); 3101 } 3102 3103 /* 3104 * --- Accessibility Support --- 3105 * 3106 */ 3107 3108 /** 3109 * Gets the AccessibleContext associated with this Window. 3110 * For windows, the AccessibleContext takes the form of an 3111 * AccessibleAWTWindow. 3112 * A new AccessibleAWTWindow instance is created if necessary. 3113 * 3114 * @return an AccessibleAWTWindow that serves as the 3115 * AccessibleContext of this Window 3116 * @since 1.3 3117 */ 3118 public AccessibleContext getAccessibleContext() { 3119 if (accessibleContext == null) { 3120 accessibleContext = new AccessibleAWTWindow(); 3121 } 3122 return accessibleContext; 3123 } 3124 3125 /** 3126 * This class implements accessibility support for the 3127 * {@code Window} class. It provides an implementation of the 3128 * Java Accessibility API appropriate to window user-interface elements. 3129 * @since 1.3 3130 */ 3131 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3132 { 3133 /* 3134 * JDK 1.3 serialVersionUID 3135 */ 3136 private static final long serialVersionUID = 4215068635060671780L; 3137 3138 /** 3139 * Get the role of this object. 3140 * 3141 * @return an instance of AccessibleRole describing the role of the 3142 * object 3143 * @see javax.accessibility.AccessibleRole 3144 */ 3145 public AccessibleRole getAccessibleRole() { 3146 return AccessibleRole.WINDOW; 3147 } 3148 3149 /** 3150 * Get the state of this object. 3151 * 3152 * @return an instance of AccessibleStateSet containing the current 3153 * state set of the object 3154 * @see javax.accessibility.AccessibleState 3155 */ 3156 public AccessibleStateSet getAccessibleStateSet() { 3157 AccessibleStateSet states = super.getAccessibleStateSet(); 3158 if (getFocusOwner() != null) { 3159 states.add(AccessibleState.ACTIVE); 3160 } 3161 return states; 3162 } 3163 3164 } // inner class AccessibleAWTWindow 3165 3166 @Override 3167 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3168 if (gc == null) { 3169 gc = GraphicsEnvironment. 3170 getLocalGraphicsEnvironment(). 3171 getDefaultScreenDevice(). 3172 getDefaultConfiguration(); 3173 } 3174 synchronized (getTreeLock()) { 3175 super.setGraphicsConfiguration(gc); 3176 if (log.isLoggable(PlatformLogger.Level.FINER)) { 3177 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3178 } 3179 } 3180 } 3181 3182 /** 3183 * Sets the location of the window relative to the specified 3184 * component according to the following scenarios. 3185 * <p> 3186 * The target screen mentioned below is a screen to which 3187 * the window should be placed after the setLocationRelativeTo 3188 * method is called. 3189 * <ul> 3190 * <li>If the component is {@code null}, or the {@code 3191 * GraphicsConfiguration} associated with this component is 3192 * {@code null}, the window is placed in the center of the 3193 * screen. The center point can be obtained with the {@link 3194 * GraphicsEnvironment#getCenterPoint 3195 * GraphicsEnvironment.getCenterPoint} method. 3196 * <li>If the component is not {@code null}, but it is not 3197 * currently showing, the window is placed in the center of 3198 * the target screen defined by the {@code 3199 * GraphicsConfiguration} associated with this component. 3200 * <li>If the component is not {@code null} and is shown on 3201 * the screen, then the window is located in such a way that 3202 * the center of the window coincides with the center of the 3203 * component. 3204 * </ul> 3205 * <p> 3206 * If the screens configuration does not allow the window to 3207 * be moved from one screen to another, then the window is 3208 * only placed at the location determined according to the 3209 * above conditions and its {@code GraphicsConfiguration} is 3210 * not changed. 3211 * <p> 3212 * <b>Note</b>: If the lower edge of the window is out of the screen, 3213 * then the window is placed to the side of the {@code Component} 3214 * that is closest to the center of the screen. So if the 3215 * component is on the right part of the screen, the window 3216 * is placed to its left, and vice versa. 3217 * <p> 3218 * If after the window location has been calculated, the upper, 3219 * left, or right edge of the window is out of the screen, 3220 * then the window is located in such a way that the upper, 3221 * left, or right edge of the window coincides with the 3222 * corresponding edge of the screen. If both left and right 3223 * edges of the window are out of the screen, the window is 3224 * placed at the left side of the screen. The similar placement 3225 * will occur if both top and bottom edges are out of the screen. 3226 * In that case, the window is placed at the top side of the screen. 3227 * <p> 3228 * The method changes the geometry-related data. Therefore, 3229 * the native windowing system may ignore such requests, or it may modify 3230 * the requested data, so that the {@code Window} object is placed and sized 3231 * in a way that corresponds closely to the desktop settings. 3232 * 3233 * @param c the component in relation to which the window's location 3234 * is determined 3235 * @see java.awt.GraphicsEnvironment#getCenterPoint 3236 * @since 1.4 3237 */ 3238 public void setLocationRelativeTo(Component c) { 3239 // target location 3240 int dx = 0, dy = 0; 3241 // target GC 3242 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3243 Rectangle gcBounds = gc.getBounds(); 3244 3245 Dimension windowSize = getSize(); 3246 3247 // search a top-level of c 3248 Window componentWindow = SunToolkit.getContainingWindow(c); 3249 if ((c == null) || (componentWindow == null)) { 3250 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3251 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3252 gcBounds = gc.getBounds(); 3253 Point centerPoint = ge.getCenterPoint(); 3254 dx = centerPoint.x - windowSize.width / 2; 3255 dy = centerPoint.y - windowSize.height / 2; 3256 } else if (!c.isShowing()) { 3257 gc = componentWindow.getGraphicsConfiguration(); 3258 gcBounds = gc.getBounds(); 3259 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3260 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3261 } else { 3262 gc = componentWindow.getGraphicsConfiguration(); 3263 gcBounds = gc.getBounds(); 3264 Dimension compSize = c.getSize(); 3265 Point compLocation = c.getLocationOnScreen(); 3266 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3267 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3268 3269 // Adjust for bottom edge being offscreen 3270 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3271 dy = gcBounds.y + gcBounds.height - windowSize.height; 3272 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3273 dx = compLocation.x + compSize.width; 3274 } else { 3275 dx = compLocation.x - windowSize.width; 3276 } 3277 } 3278 } 3279 3280 // Avoid being placed off the edge of the screen: 3281 // bottom 3282 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3283 dy = gcBounds.y + gcBounds.height - windowSize.height; 3284 } 3285 // top 3286 if (dy < gcBounds.y) { 3287 dy = gcBounds.y; 3288 } 3289 // right 3290 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3291 dx = gcBounds.x + gcBounds.width - windowSize.width; 3292 } 3293 // left 3294 if (dx < gcBounds.x) { 3295 dx = gcBounds.x; 3296 } 3297 3298 setLocation(dx, dy); 3299 } 3300 3301 /** 3302 * Overridden from Component. Top-level Windows should not propagate a 3303 * MouseWheelEvent beyond themselves into their owning Windows. 3304 */ 3305 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3306 3307 /** 3308 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3309 */ 3310 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3311 3312 /** 3313 * Creates a new strategy for multi-buffering on this component. 3314 * Multi-buffering is useful for rendering performance. This method 3315 * attempts to create the best strategy available with the number of 3316 * buffers supplied. It will always create a {@code BufferStrategy} 3317 * with that number of buffers. 3318 * A page-flipping strategy is attempted first, then a blitting strategy 3319 * using accelerated buffers. Finally, an unaccelerated blitting 3320 * strategy is used. 3321 * <p> 3322 * Each time this method is called, 3323 * the existing buffer strategy for this component is discarded. 3324 * @param numBuffers number of buffers to create 3325 * @exception IllegalArgumentException if numBuffers is less than 1. 3326 * @exception IllegalStateException if the component is not displayable 3327 * @see #isDisplayable 3328 * @see #getBufferStrategy 3329 * @since 1.4 3330 */ 3331 public void createBufferStrategy(int numBuffers) { 3332 super.createBufferStrategy(numBuffers); 3333 } 3334 3335 /** 3336 * Creates a new strategy for multi-buffering on this component with the 3337 * required buffer capabilities. This is useful, for example, if only 3338 * accelerated memory or page flipping is desired (as specified by the 3339 * buffer capabilities). 3340 * <p> 3341 * Each time this method 3342 * is called, the existing buffer strategy for this component is discarded. 3343 * @param numBuffers number of buffers to create, including the front buffer 3344 * @param caps the required capabilities for creating the buffer strategy; 3345 * cannot be {@code null} 3346 * @exception AWTException if the capabilities supplied could not be 3347 * supported or met; this may happen, for example, if there is not enough 3348 * accelerated memory currently available, or if page flipping is specified 3349 * but not possible. 3350 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3351 * caps is {@code null} 3352 * @see #getBufferStrategy 3353 * @since 1.4 3354 */ 3355 public void createBufferStrategy(int numBuffers, 3356 BufferCapabilities caps) throws AWTException { 3357 super.createBufferStrategy(numBuffers, caps); 3358 } 3359 3360 /** 3361 * Returns the {@code BufferStrategy} used by this component. This 3362 * method will return null if a {@code BufferStrategy} has not yet 3363 * been created or has been disposed. 3364 * 3365 * @return the buffer strategy used by this component 3366 * @see #createBufferStrategy 3367 * @since 1.4 3368 */ 3369 public BufferStrategy getBufferStrategy() { 3370 return super.getBufferStrategy(); 3371 } 3372 3373 Component getTemporaryLostComponent() { 3374 return temporaryLostComponent; 3375 } 3376 Component setTemporaryLostComponent(Component component) { 3377 Component previousComp = temporaryLostComponent; 3378 // Check that "component" is an acceptable focus owner and don't store it otherwise 3379 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3380 if (component == null || component.canBeFocusOwner()) { 3381 temporaryLostComponent = component; 3382 } else { 3383 temporaryLostComponent = null; 3384 } 3385 return previousComp; 3386 } 3387 3388 /** 3389 * Checks whether this window can contain focus owner. 3390 * Verifies that it is focusable and as container it can container focus owner. 3391 * @since 1.5 3392 */ 3393 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3394 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3395 } 3396 3397 private volatile boolean locationByPlatform = locationByPlatformProp; 3398 3399 3400 /** 3401 * Sets whether this Window should appear at the default location for the 3402 * native windowing system or at the current location (returned by 3403 * {@code getLocation}) the next time the Window is made visible. 3404 * This behavior resembles a native window shown without programmatically 3405 * setting its location. Most windowing systems cascade windows if their 3406 * locations are not explicitly set. The actual location is determined once the 3407 * window is shown on the screen. 3408 * <p> 3409 * This behavior can also be enabled by setting the System Property 3410 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3411 * take precedence. 3412 * <p> 3413 * Calls to {@code setVisible}, {@code setLocation} and 3414 * {@code setBounds} after calling {@code setLocationByPlatform} clear 3415 * this property of the Window. 3416 * <p> 3417 * For example, after the following code is executed: 3418 * <pre> 3419 * setLocationByPlatform(true); 3420 * setVisible(true); 3421 * boolean flag = isLocationByPlatform(); 3422 * </pre> 3423 * The window will be shown at platform's default location and 3424 * {@code flag} will be {@code false}. 3425 * <p> 3426 * In the following sample: 3427 * <pre> 3428 * setLocationByPlatform(true); 3429 * setLocation(10, 10); 3430 * boolean flag = isLocationByPlatform(); 3431 * setVisible(true); 3432 * </pre> 3433 * The window will be shown at (10, 10) and {@code flag} will be 3434 * {@code false}. 3435 * 3436 * @param locationByPlatform {@code true} if this Window should appear 3437 * at the default location, {@code false} if at the current location 3438 * @throws IllegalComponentStateException if the window 3439 * is showing on screen and locationByPlatform is {@code true}. 3440 * @see #setLocation 3441 * @see #isShowing 3442 * @see #setVisible 3443 * @see #isLocationByPlatform 3444 * @see java.lang.System#getProperty(String) 3445 * @since 1.5 3446 */ 3447 public void setLocationByPlatform(boolean locationByPlatform) { 3448 synchronized (getTreeLock()) { 3449 if (locationByPlatform && isShowing()) { 3450 throw new IllegalComponentStateException("The window is showing on screen."); 3451 } 3452 this.locationByPlatform = locationByPlatform; 3453 } 3454 } 3455 3456 /** 3457 * Returns {@code true} if this Window will appear at the default location 3458 * for the native windowing system the next time this Window is made visible. 3459 * This method always returns {@code false} if the Window is showing on the 3460 * screen. 3461 * 3462 * @return whether this Window will appear at the default location 3463 * @see #setLocationByPlatform 3464 * @see #isShowing 3465 * @since 1.5 3466 */ 3467 public boolean isLocationByPlatform() { 3468 return locationByPlatform; 3469 } 3470 3471 /** 3472 * {@inheritDoc} 3473 * <p> 3474 * The {@code width} or {@code height} values 3475 * are automatically enlarged if either is less than 3476 * the minimum size as specified by previous call to 3477 * {@code setMinimumSize}. 3478 * <p> 3479 * The method changes the geometry-related data. Therefore, 3480 * the native windowing system may ignore such requests, or it may modify 3481 * the requested data, so that the {@code Window} object is placed and sized 3482 * in a way that corresponds closely to the desktop settings. 3483 * 3484 * @see #getBounds 3485 * @see #setLocation(int, int) 3486 * @see #setLocation(Point) 3487 * @see #setSize(int, int) 3488 * @see #setSize(Dimension) 3489 * @see #setMinimumSize 3490 * @see #setLocationByPlatform 3491 * @see #isLocationByPlatform 3492 * @since 1.6 3493 */ 3494 public void setBounds(int x, int y, int width, int height) { 3495 synchronized (getTreeLock()) { 3496 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3497 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3498 { 3499 locationByPlatform = false; 3500 } 3501 super.setBounds(x, y, width, height); 3502 } 3503 } 3504 3505 /** 3506 * {@inheritDoc} 3507 * <p> 3508 * The {@code r.width} or {@code r.height} values 3509 * will be automatically enlarged if either is less than 3510 * the minimum size as specified by previous call to 3511 * {@code setMinimumSize}. 3512 * <p> 3513 * The method changes the geometry-related data. Therefore, 3514 * the native windowing system may ignore such requests, or it may modify 3515 * the requested data, so that the {@code Window} object is placed and sized 3516 * in a way that corresponds closely to the desktop settings. 3517 * 3518 * @see #getBounds 3519 * @see #setLocation(int, int) 3520 * @see #setLocation(Point) 3521 * @see #setSize(int, int) 3522 * @see #setSize(Dimension) 3523 * @see #setMinimumSize 3524 * @see #setLocationByPlatform 3525 * @see #isLocationByPlatform 3526 * @since 1.6 3527 */ 3528 public void setBounds(Rectangle r) { 3529 setBounds(r.x, r.y, r.width, r.height); 3530 } 3531 3532 /** 3533 * Determines whether this component will be displayed on the screen. 3534 * @return {@code true} if the component and all of its ancestors 3535 * until a toplevel window are visible, {@code false} otherwise 3536 */ 3537 boolean isRecursivelyVisible() { 3538 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3539 // We're overriding isRecursivelyVisible to implement this policy. 3540 return visible; 3541 } 3542 3543 3544 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3545 3546 /** 3547 * Returns the opacity of the window. 3548 * 3549 * @return the opacity of the window 3550 * 3551 * @see Window#setOpacity(float) 3552 * @see GraphicsDevice.WindowTranslucency 3553 * 3554 * @since 1.7 3555 */ 3556 public float getOpacity() { 3557 return opacity; 3558 } 3559 3560 /** 3561 * Sets the opacity of the window. 3562 * <p> 3563 * The opacity value is in the range [0..1]. Note that setting the opacity 3564 * level of 0 may or may not disable the mouse event handling on this 3565 * window. This is a platform-dependent behavior. 3566 * <p> 3567 * The following conditions must be met in order to set the opacity value 3568 * less than {@code 1.0f}: 3569 * <ul> 3570 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3571 * translucency must be supported by the underlying system 3572 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3573 * and {@link Dialog#setUndecorated}) 3574 * <li>The window must not be in full-screen mode (see {@link 3575 * GraphicsDevice#setFullScreenWindow(Window)}) 3576 * </ul> 3577 * <p> 3578 * If the requested opacity value is less than {@code 1.0f}, and any of the 3579 * above conditions are not met, the window opacity will not change, 3580 * and the {@code IllegalComponentStateException} will be thrown. 3581 * <p> 3582 * The translucency levels of individual pixels may also be effected by the 3583 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3584 * current shape of this window (see {@link #setShape(Shape)}). 3585 * 3586 * @param opacity the opacity level to set to the window 3587 * 3588 * @throws IllegalArgumentException if the opacity is out of the range 3589 * [0..1] 3590 * @throws IllegalComponentStateException if the window is decorated and 3591 * the opacity is less than {@code 1.0f} 3592 * @throws IllegalComponentStateException if the window is in full screen 3593 * mode, and the opacity is less than {@code 1.0f} 3594 * @throws UnsupportedOperationException if the {@code 3595 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3596 * translucency is not supported and the opacity is less than 3597 * {@code 1.0f} 3598 * 3599 * @see Window#getOpacity 3600 * @see Window#setBackground(Color) 3601 * @see Window#setShape(Shape) 3602 * @see Frame#isUndecorated 3603 * @see Dialog#isUndecorated 3604 * @see GraphicsDevice.WindowTranslucency 3605 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3606 * 3607 * @since 1.7 3608 */ 3609 public void setOpacity(float opacity) { 3610 synchronized (getTreeLock()) { 3611 if (opacity < 0.0f || opacity > 1.0f) { 3612 throw new IllegalArgumentException( 3613 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3614 } 3615 if (opacity < 1.0f) { 3616 GraphicsConfiguration gc = getGraphicsConfiguration(); 3617 GraphicsDevice gd = gc.getDevice(); 3618 if (gc.getDevice().getFullScreenWindow() == this) { 3619 throw new IllegalComponentStateException( 3620 "Setting opacity for full-screen window is not supported."); 3621 } 3622 if (!gd.isWindowTranslucencySupported( 3623 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3624 { 3625 throw new UnsupportedOperationException( 3626 "TRANSLUCENT translucency is not supported."); 3627 } 3628 } 3629 this.opacity = opacity; 3630 WindowPeer peer = (WindowPeer)getPeer(); 3631 if (peer != null) { 3632 peer.setOpacity(opacity); 3633 } 3634 } 3635 } 3636 3637 /** 3638 * Returns the shape of the window. 3639 * 3640 * The value returned by this method may not be the same as 3641 * previously set with {@code setShape(shape)}, but it is guaranteed 3642 * to represent the same shape. 3643 * 3644 * @return the shape of the window or {@code null} if no 3645 * shape is specified for the window 3646 * 3647 * @see Window#setShape(Shape) 3648 * @see GraphicsDevice.WindowTranslucency 3649 * 3650 * @since 1.7 3651 */ 3652 public Shape getShape() { 3653 synchronized (getTreeLock()) { 3654 return shape == null ? null : new Path2D.Float(shape); 3655 } 3656 } 3657 3658 /** 3659 * Sets the shape of the window. 3660 * <p> 3661 * Setting a shape cuts off some parts of the window. Only the parts that 3662 * belong to the given {@link Shape} remain visible and clickable. If 3663 * the shape argument is {@code null}, this method restores the default 3664 * shape, making the window rectangular on most platforms. 3665 * <p> 3666 * The following conditions must be met to set a non-null shape: 3667 * <ul> 3668 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3669 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3670 * underlying system 3671 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3672 * and {@link Dialog#setUndecorated}) 3673 * <li>The window must not be in full-screen mode (see {@link 3674 * GraphicsDevice#setFullScreenWindow(Window)}) 3675 * </ul> 3676 * <p> 3677 * If the requested shape is not {@code null}, and any of the above 3678 * conditions are not met, the shape of this window will not change, 3679 * and either the {@code UnsupportedOperationException} or {@code 3680 * IllegalComponentStateException} will be thrown. 3681 * <p> 3682 * The translucency levels of individual pixels may also be effected by the 3683 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3684 * opacity value (see {@link #setOpacity(float)}). See {@link 3685 * GraphicsDevice.WindowTranslucency} for more details. 3686 * 3687 * @param shape the shape to set to the window 3688 * 3689 * @throws IllegalComponentStateException if the shape is not {@code 3690 * null} and the window is decorated 3691 * @throws IllegalComponentStateException if the shape is not {@code 3692 * null} and the window is in full-screen mode 3693 * @throws UnsupportedOperationException if the shape is not {@code 3694 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3695 * PERPIXEL_TRANSPARENT} translucency is not supported 3696 * 3697 * @see Window#getShape() 3698 * @see Window#setBackground(Color) 3699 * @see Window#setOpacity(float) 3700 * @see Frame#isUndecorated 3701 * @see Dialog#isUndecorated 3702 * @see GraphicsDevice.WindowTranslucency 3703 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3704 * 3705 * @since 1.7 3706 */ 3707 public void setShape(Shape shape) { 3708 synchronized (getTreeLock()) { 3709 if (shape != null) { 3710 GraphicsConfiguration gc = getGraphicsConfiguration(); 3711 GraphicsDevice gd = gc.getDevice(); 3712 if (gc.getDevice().getFullScreenWindow() == this) { 3713 throw new IllegalComponentStateException( 3714 "Setting shape for full-screen window is not supported."); 3715 } 3716 if (!gd.isWindowTranslucencySupported( 3717 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3718 { 3719 throw new UnsupportedOperationException( 3720 "PERPIXEL_TRANSPARENT translucency is not supported."); 3721 } 3722 } 3723 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3724 WindowPeer peer = (WindowPeer)getPeer(); 3725 if (peer != null) { 3726 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3727 } 3728 } 3729 } 3730 3731 /** 3732 * Gets the background color of this window. 3733 * <p> 3734 * Note that the alpha component of the returned color indicates whether 3735 * the window is in the non-opaque (per-pixel translucent) mode. 3736 * 3737 * @return this component's background color 3738 * 3739 * @see Window#setBackground(Color) 3740 * @see Window#isOpaque 3741 * @see GraphicsDevice.WindowTranslucency 3742 */ 3743 @Override 3744 public Color getBackground() { 3745 return super.getBackground(); 3746 } 3747 3748 /** 3749 * Sets the background color of this window. 3750 * <p> 3751 * If the windowing system supports the {@link 3752 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3753 * translucency, the alpha component of the given background color 3754 * may effect the mode of operation for this window: it indicates whether 3755 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3756 * (alpha is less than {@code 1.0f}). If the given background color is 3757 * {@code null}, the window is considered completely opaque. 3758 * <p> 3759 * All the following conditions must be met to enable the per-pixel 3760 * transparency mode for this window: 3761 * <ul> 3762 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3763 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3764 * device where this window is located 3765 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3766 * and {@link Dialog#setUndecorated}) 3767 * <li>The window must not be in full-screen mode (see {@link 3768 * GraphicsDevice#setFullScreenWindow(Window)}) 3769 * </ul> 3770 * <p> 3771 * If the alpha component of the requested background color is less than 3772 * {@code 1.0f}, and any of the above conditions are not met, the background 3773 * color of this window will not change, the alpha component of the given 3774 * background color will not affect the mode of operation for this window, 3775 * and either the {@code UnsupportedOperationException} or {@code 3776 * IllegalComponentStateException} will be thrown. 3777 * <p> 3778 * When the window is per-pixel translucent, the drawing sub-system 3779 * respects the alpha value of each individual pixel. If a pixel gets 3780 * painted with the alpha color component equal to zero, it becomes 3781 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3782 * pixel is fully opaque. Interim values of the alpha color component make 3783 * the pixel semi-transparent. In this mode, the background of the window 3784 * gets painted with the alpha value of the given background color. If the 3785 * alpha value of the argument of this method is equal to {@code 0}, the 3786 * background is not painted at all. 3787 * <p> 3788 * The actual level of translucency of a given pixel also depends on window 3789 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3790 * this window (see {@link #setShape(Shape)}). 3791 * <p> 3792 * Note that painting a pixel with the alpha value of {@code 0} may or may 3793 * not disable the mouse event handling on this pixel. This is a 3794 * platform-dependent behavior. To make sure the mouse events do not get 3795 * dispatched to a particular pixel, the pixel must be excluded from the 3796 * shape of the window. 3797 * <p> 3798 * Enabling the per-pixel translucency mode may change the graphics 3799 * configuration of this window due to the native platform requirements. 3800 * 3801 * @param bgColor the color to become this window's background color. 3802 * 3803 * @throws IllegalComponentStateException if the alpha value of the given 3804 * background color is less than {@code 1.0f} and the window is decorated 3805 * @throws IllegalComponentStateException if the alpha value of the given 3806 * background color is less than {@code 1.0f} and the window is in 3807 * full-screen mode 3808 * @throws UnsupportedOperationException if the alpha value of the given 3809 * background color is less than {@code 1.0f} and {@link 3810 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3811 * PERPIXEL_TRANSLUCENT} translucency is not supported 3812 * 3813 * @see Window#getBackground 3814 * @see Window#isOpaque 3815 * @see Window#setOpacity(float) 3816 * @see Window#setShape(Shape) 3817 * @see Frame#isUndecorated 3818 * @see Dialog#isUndecorated 3819 * @see GraphicsDevice.WindowTranslucency 3820 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3821 * @see GraphicsConfiguration#isTranslucencyCapable() 3822 */ 3823 @Override 3824 public void setBackground(Color bgColor) { 3825 Color oldBg = getBackground(); 3826 super.setBackground(bgColor); 3827 if (oldBg != null && oldBg.equals(bgColor)) { 3828 return; 3829 } 3830 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3831 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3832 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3833 GraphicsConfiguration gc = getGraphicsConfiguration(); 3834 GraphicsDevice gd = gc.getDevice(); 3835 if (gc.getDevice().getFullScreenWindow() == this) { 3836 throw new IllegalComponentStateException( 3837 "Making full-screen window non opaque is not supported."); 3838 } 3839 if (!gc.isTranslucencyCapable()) { 3840 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3841 if (capableGC == null) { 3842 throw new UnsupportedOperationException( 3843 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3844 } 3845 setGraphicsConfiguration(capableGC); 3846 } 3847 setLayersOpaque(this, false); 3848 } else if ((oldAlpha < 255) && (alpha == 255)) { 3849 setLayersOpaque(this, true); 3850 } 3851 WindowPeer peer = (WindowPeer)getPeer(); 3852 if (peer != null) { 3853 peer.setOpaque(alpha == 255); 3854 } 3855 } 3856 3857 /** 3858 * Indicates if the window is currently opaque. 3859 * <p> 3860 * The method returns {@code false} if the background color of the window 3861 * is not {@code null} and the alpha component of the color is less than 3862 * {@code 1.0f}. The method returns {@code true} otherwise. 3863 * 3864 * @return {@code true} if the window is opaque, {@code false} otherwise 3865 * 3866 * @see Window#getBackground 3867 * @see Window#setBackground(Color) 3868 * @since 1.7 3869 */ 3870 @Override 3871 public boolean isOpaque() { 3872 Color bg = getBackground(); 3873 return bg != null ? bg.getAlpha() == 255 : true; 3874 } 3875 3876 private void updateWindow() { 3877 synchronized (getTreeLock()) { 3878 WindowPeer peer = (WindowPeer)getPeer(); 3879 if (peer != null) { 3880 peer.updateWindow(); 3881 } 3882 } 3883 } 3884 3885 /** 3886 * {@inheritDoc} 3887 * 3888 * @since 1.7 3889 */ 3890 @Override 3891 public void paint(Graphics g) { 3892 if (!isOpaque()) { 3893 Graphics gg = g.create(); 3894 try { 3895 if (gg instanceof Graphics2D) { 3896 gg.setColor(getBackground()); 3897 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3898 gg.fillRect(0, 0, getWidth(), getHeight()); 3899 } 3900 } finally { 3901 gg.dispose(); 3902 } 3903 } 3904 super.paint(g); 3905 } 3906 3907 private static void setLayersOpaque(Component component, boolean isOpaque) { 3908 // Shouldn't use instanceof to avoid loading Swing classes 3909 // if it's a pure AWT application. 3910 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3911 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3912 javax.swing.JRootPane root = rpc.getRootPane(); 3913 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3914 Container c = root.getContentPane(); 3915 javax.swing.JComponent content = 3916 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3917 lp.setOpaque(isOpaque); 3918 root.setOpaque(isOpaque); 3919 if (content != null) { 3920 content.setOpaque(isOpaque); 3921 3922 // Iterate down one level to see whether we have a JApplet 3923 // (which is also a RootPaneContainer) which requires processing 3924 int numChildren = content.getComponentCount(); 3925 if (numChildren > 0) { 3926 Component child = content.getComponent(0); 3927 // It's OK to use instanceof here because we've 3928 // already loaded the RootPaneContainer class by now 3929 if (child instanceof javax.swing.RootPaneContainer) { 3930 setLayersOpaque(child, isOpaque); 3931 } 3932 } 3933 } 3934 } 3935 } 3936 3937 3938 // ************************** MIXING CODE ******************************* 3939 3940 // A window has an owner, but it does NOT have a container 3941 @Override 3942 final Container getContainer() { 3943 return null; 3944 } 3945 3946 /** 3947 * Applies the shape to the component 3948 * @param shape Shape to be applied to the component 3949 */ 3950 @Override 3951 final void applyCompoundShape(Region shape) { 3952 // The shape calculated by mixing code is not intended to be applied 3953 // to windows or frames 3954 } 3955 3956 @Override 3957 final void applyCurrentShape() { 3958 // The shape calculated by mixing code is not intended to be applied 3959 // to windows or frames 3960 } 3961 3962 @Override 3963 final void mixOnReshaping() { 3964 // The shape calculated by mixing code is not intended to be applied 3965 // to windows or frames 3966 } 3967 3968 @Override 3969 final Point getLocationOnWindow() { 3970 return new Point(0, 0); 3971 } 3972 3973 // ****************** END OF MIXING CODE ******************************** 3974 3975 /** 3976 * Limit the given double value with the given range. 3977 */ 3978 private static double limit(double value, double min, double max) { 3979 value = Math.max(value, min); 3980 value = Math.min(value, max); 3981 return value; 3982 } 3983 3984 /** 3985 * Calculate the position of the security warning. 3986 * 3987 * This method gets the window location/size as reported by the native 3988 * system since the locally cached values may represent outdated data. 3989 * 3990 * The method is used from the native code, or via AWTAccessor. 3991 * 3992 * NOTE: this method is invoked on the toolkit thread, and therefore is not 3993 * supposed to become public/user-overridable. 3994 */ 3995 private Point2D calculateSecurityWarningPosition(double x, double y, 3996 double w, double h) 3997 { 3998 // The position according to the spec of SecurityWarning.setPosition() 3999 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 4000 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 4001 4002 // First, make sure the warning is not too far from the window bounds 4003 wx = Window.limit(wx, 4004 x - securityWarningWidth - 2, 4005 x + w + 2); 4006 wy = Window.limit(wy, 4007 y - securityWarningHeight - 2, 4008 y + h + 2); 4009 4010 // Now make sure the warning window is visible on the screen 4011 GraphicsConfiguration graphicsConfig = 4012 getGraphicsConfiguration_NoClientCode(); 4013 Rectangle screenBounds = graphicsConfig.getBounds(); 4014 Insets screenInsets = 4015 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 4016 4017 wx = Window.limit(wx, 4018 screenBounds.x + screenInsets.left, 4019 screenBounds.x + screenBounds.width - screenInsets.right 4020 - securityWarningWidth); 4021 wy = Window.limit(wy, 4022 screenBounds.y + screenInsets.top, 4023 screenBounds.y + screenBounds.height - screenInsets.bottom 4024 - securityWarningHeight); 4025 4026 return new Point2D.Double(wx, wy); 4027 } 4028 4029 static { 4030 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 4031 public float getOpacity(Window window) { 4032 return window.opacity; 4033 } 4034 public void setOpacity(Window window, float opacity) { 4035 window.setOpacity(opacity); 4036 } 4037 public Shape getShape(Window window) { 4038 return window.getShape(); 4039 } 4040 public void setShape(Window window, Shape shape) { 4041 window.setShape(shape); 4042 } 4043 public void setOpaque(Window window, boolean opaque) { 4044 Color bg = window.getBackground(); 4045 if (bg == null) { 4046 bg = new Color(0, 0, 0, 0); 4047 } 4048 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4049 opaque ? 255 : 0)); 4050 } 4051 public void updateWindow(Window window) { 4052 window.updateWindow(); 4053 } 4054 4055 public Dimension getSecurityWarningSize(Window window) { 4056 return new Dimension(window.securityWarningWidth, 4057 window.securityWarningHeight); 4058 } 4059 4060 public void setSecurityWarningSize(Window window, int width, int height) 4061 { 4062 window.securityWarningWidth = width; 4063 window.securityWarningHeight = height; 4064 } 4065 4066 public void setSecurityWarningPosition(Window window, 4067 Point2D point, float alignmentX, float alignmentY) 4068 { 4069 window.securityWarningPointX = point.getX(); 4070 window.securityWarningPointY = point.getY(); 4071 window.securityWarningAlignmentX = alignmentX; 4072 window.securityWarningAlignmentY = alignmentY; 4073 4074 synchronized (window.getTreeLock()) { 4075 WindowPeer peer = (WindowPeer)window.getPeer(); 4076 if (peer != null) { 4077 peer.repositionSecurityWarning(); 4078 } 4079 } 4080 } 4081 4082 public Point2D calculateSecurityWarningPosition(Window window, 4083 double x, double y, double w, double h) 4084 { 4085 return window.calculateSecurityWarningPosition(x, y, w, h); 4086 } 4087 4088 public void setLWRequestStatus(Window changed, boolean status) { 4089 changed.syncLWRequests = status; 4090 } 4091 4092 public boolean isAutoRequestFocus(Window w) { 4093 return w.autoRequestFocus; 4094 } 4095 4096 public boolean isTrayIconWindow(Window w) { 4097 return w.isTrayIconWindow; 4098 } 4099 4100 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4101 w.isTrayIconWindow = isTrayIconWindow; 4102 } 4103 }); // WindowAccessor 4104 } // static 4105 4106 // a window doesn't need to be updated in the Z-order. 4107 @Override 4108 void updateZOrder() {} 4109 4110 } // class Window 4111 4112 4113 /** 4114 * This class is no longer used, but is maintained for Serialization 4115 * backward-compatibility. 4116 */ 4117 class FocusManager implements java.io.Serializable { 4118 Container focusRoot; 4119 Component focusOwner; 4120 4121 /* 4122 * JDK 1.1 serialVersionUID 4123 */ 4124 static final long serialVersionUID = 2491878825643557906L; 4125 }