1 /* 2 * Copyright (c) 1995, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.peer.ComponentPeer; 33 import java.awt.peer.WindowPeer; 34 import java.beans.PropertyChangeListener; 35 import java.io.IOException; 36 import java.io.ObjectInputStream; 37 import java.io.ObjectOutputStream; 38 import java.io.OptionalDataException; 39 import java.io.Serializable; 40 import java.lang.ref.WeakReference; 41 import java.lang.reflect.InvocationTargetException; 42 import java.security.AccessController; 43 import java.util.ArrayList; 44 import java.util.Arrays; 45 import java.util.EventListener; 46 import java.util.Locale; 47 import java.util.ResourceBundle; 48 import java.util.Set; 49 import java.util.Vector; 50 import java.util.concurrent.atomic.AtomicBoolean; 51 import javax.accessibility.*; 52 import sun.awt.AWTAccessor; 53 import sun.awt.AWTPermissions; 54 import sun.awt.AppContext; 55 import sun.awt.DebugSettings; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.pipe.Region; 59 import sun.security.action.GetPropertyAction; 60 import sun.util.logging.PlatformLogger; 61 62 /** 63 * A {@code Window} object is a top-level window with no borders and no 64 * menubar. 65 * The default layout for a window is {@code BorderLayout}. 66 * <p> 67 * A window must have either a frame, dialog, or another window defined as its 68 * owner when it's constructed. 69 * <p> 70 * In a multi-screen environment, you can create a {@code Window} 71 * on a different screen device by constructing the {@code Window} 72 * with {@link #Window(Window, GraphicsConfiguration)}. The 73 * {@code GraphicsConfiguration} object is one of the 74 * {@code GraphicsConfiguration} objects of the target screen device. 75 * <p> 76 * In a virtual device multi-screen environment in which the desktop 77 * area could span multiple physical screen devices, the bounds of all 78 * configurations are relative to the virtual device coordinate system. 79 * The origin of the virtual-coordinate system is at the upper left-hand 80 * corner of the primary physical screen. Depending on the location of 81 * the primary screen in the virtual device, negative coordinates are 82 * possible, as shown in the following figure. 83 * <p> 84 * <img src="doc-files/MultiScreen.gif" 85 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 86 * style="float:center; margin: 7px 10px;"> 87 * <p> 88 * In such an environment, when calling {@code setLocation}, 89 * you must pass a virtual coordinate to this method. Similarly, 90 * calling {@code getLocationOnScreen} on a {@code Window} returns 91 * virtual device coordinates. Call the {@code getBounds} method 92 * of a {@code GraphicsConfiguration} to find its origin in the virtual 93 * coordinate system. 94 * <p> 95 * The following code sets the location of a {@code Window} 96 * at (10, 10) relative to the origin of the physical screen 97 * of the corresponding {@code GraphicsConfiguration}. If the 98 * bounds of the {@code GraphicsConfiguration} is not taken 99 * into account, the {@code Window} location would be set 100 * at (10, 10) relative to the virtual-coordinate system and would appear 101 * on the primary physical screen, which might be different from the 102 * physical screen of the specified {@code GraphicsConfiguration}. 103 * 104 * <pre> 105 * Window w = new Window(Window owner, GraphicsConfiguration gc); 106 * Rectangle bounds = gc.getBounds(); 107 * w.setLocation(10 + bounds.x, 10 + bounds.y); 108 * </pre> 109 * 110 * <p> 111 * Note: the location and size of top-level windows (including 112 * {@code Window}s, {@code Frame}s, and {@code Dialog}s) 113 * are under the control of the desktop's window management system. 114 * Calls to {@code setLocation}, {@code setSize}, and 115 * {@code setBounds} are requests (not directives) which are 116 * forwarded to the window management system. Every effort will be 117 * made to honor such requests. However, in some cases the window 118 * management system may ignore such requests, or modify the requested 119 * geometry in order to place and size the {@code Window} in a way 120 * that more closely matches the desktop settings. 121 * <p> 122 * Due to the asynchronous nature of native event handling, the results 123 * returned by {@code getBounds}, {@code getLocation}, 124 * {@code getLocationOnScreen}, and {@code getSize} might not 125 * reflect the actual geometry of the Window on screen until the last 126 * request has been processed. During the processing of subsequent 127 * requests these values might change accordingly while the window 128 * management system fulfills the requests. 129 * <p> 130 * An application may set the size and location of an invisible 131 * {@code Window} arbitrarily, but the window management system may 132 * subsequently change its size and/or location when the 133 * {@code Window} is made visible. One or more {@code ComponentEvent}s 134 * will be generated to indicate the new geometry. 135 * <p> 136 * Windows are capable of generating the following WindowEvents: 137 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 138 * 139 * @author Sami Shaio 140 * @author Arthur van Hoff 141 * @see WindowEvent 142 * @see #addWindowListener 143 * @see java.awt.BorderLayout 144 * @since 1.0 145 */ 146 public class Window extends Container implements Accessible { 147 148 /** 149 * Enumeration of available <i>window types</i>. 150 * 151 * A window type defines the generic visual appearance and behavior of a 152 * top-level window. For example, the type may affect the kind of 153 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 154 * <p> 155 * Some platforms may not fully support a certain window type. Depending on 156 * the level of support, some properties of the window type may be 157 * disobeyed. 158 * 159 * @see #getType 160 * @see #setType 161 * @since 1.7 162 */ 163 public static enum Type { 164 /** 165 * Represents a <i>normal</i> window. 166 * 167 * This is the default type for objects of the {@code Window} class or 168 * its descendants. Use this type for regular top-level windows. 169 */ 170 NORMAL, 171 172 /** 173 * Represents a <i>utility</i> window. 174 * 175 * A utility window is usually a small window such as a toolbar or a 176 * palette. The native system may render the window with smaller 177 * title-bar if the window is either a {@code Frame} or a {@code 178 * Dialog} object, and if it has its decorations enabled. 179 */ 180 UTILITY, 181 182 /** 183 * Represents a <i>popup</i> window. 184 * 185 * A popup window is a temporary window such as a drop-down menu or a 186 * tooltip. On some platforms, windows of that type may be forcibly 187 * made undecorated even if they are instances of the {@code Frame} or 188 * {@code Dialog} class, and have decorations enabled. 189 */ 190 POPUP 191 } 192 193 /** 194 * This represents the warning message that is 195 * to be displayed in a non secure window. ie : 196 * a window that has a security manager installed that denies 197 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 198 * This message can be displayed anywhere in the window. 199 * 200 * @serial 201 * @see #getWarningString 202 */ 203 String warningString; 204 205 /** 206 * {@code icons} is the graphical way we can 207 * represent the frames and dialogs. 208 * {@code Window} can't display icon but it's 209 * being inherited by owned {@code Dialog}s. 210 * 211 * @serial 212 * @see #getIconImages 213 * @see #setIconImages 214 */ 215 transient java.util.List<Image> icons; 216 217 /** 218 * Holds the reference to the component which last had focus in this window 219 * before it lost focus. 220 */ 221 private transient Component temporaryLostComponent; 222 223 static boolean systemSyncLWRequests = false; 224 boolean syncLWRequests = false; 225 transient boolean beforeFirstShow = true; 226 private transient boolean disposing = false; 227 transient WindowDisposerRecord disposerRecord = null; 228 229 static final int OPENED = 0x01; 230 231 /** 232 * An Integer value representing the Window State. 233 * 234 * @serial 235 * @since 1.2 236 * @see #show 237 */ 238 int state; 239 240 /** 241 * A boolean value representing Window always-on-top state 242 * @since 1.5 243 * @serial 244 * @see #setAlwaysOnTop 245 * @see #isAlwaysOnTop 246 */ 247 private boolean alwaysOnTop; 248 249 /** 250 * Contains all the windows that have a peer object associated, 251 * i. e. between addNotify() and removeNotify() calls. The list 252 * of all Window instances can be obtained from AppContext object. 253 * 254 * @since 1.6 255 */ 256 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 257 258 /** 259 * A vector containing all the windows this 260 * window currently owns. 261 * @since 1.2 262 * @see #getOwnedWindows 263 */ 264 transient Vector<WeakReference<Window>> ownedWindowList = 265 new Vector<WeakReference<Window>>(); 266 267 /* 268 * We insert a weak reference into the Vector of all Windows in AppContext 269 * instead of 'this' so that garbage collection can still take place 270 * correctly. 271 */ 272 private transient WeakReference<Window> weakThis; 273 274 transient boolean showWithParent; 275 276 /** 277 * Contains the modal dialog that blocks this window, or null 278 * if the window is unblocked. 279 * 280 * @since 1.6 281 */ 282 transient Dialog modalBlocker; 283 284 /** 285 * @serial 286 * 287 * @see java.awt.Dialog.ModalExclusionType 288 * @see #getModalExclusionType 289 * @see #setModalExclusionType 290 * 291 * @since 1.6 292 */ 293 Dialog.ModalExclusionType modalExclusionType; 294 295 transient WindowListener windowListener; 296 transient WindowStateListener windowStateListener; 297 transient WindowFocusListener windowFocusListener; 298 299 transient InputContext inputContext; 300 private transient Object inputContextLock = new Object(); 301 302 /** 303 * Unused. Maintained for serialization backward-compatibility. 304 * 305 * @serial 306 * @since 1.2 307 */ 308 private FocusManager focusMgr; 309 310 /** 311 * Indicates whether this Window can become the focused Window. 312 * 313 * @serial 314 * @see #getFocusableWindowState 315 * @see #setFocusableWindowState 316 * @since 1.4 317 */ 318 private boolean focusableWindowState = true; 319 320 /** 321 * Indicates whether this window should receive focus on 322 * subsequently being shown (with a call to {@code setVisible(true)}), or 323 * being moved to the front (with a call to {@code toFront()}). 324 * 325 * @serial 326 * @see #setAutoRequestFocus 327 * @see #isAutoRequestFocus 328 * @since 1.7 329 */ 330 private volatile boolean autoRequestFocus = true; 331 332 /* 333 * Indicates that this window is being shown. This flag is set to true at 334 * the beginning of show() and to false at the end of show(). 335 * 336 * @see #show() 337 * @see Dialog#shouldBlock 338 */ 339 transient boolean isInShow = false; 340 341 /** 342 * The opacity level of the window 343 * 344 * @serial 345 * @see #setOpacity(float) 346 * @see #getOpacity() 347 * @since 1.7 348 */ 349 private float opacity = 1.0f; 350 351 /** 352 * The shape assigned to this window. This field is set to {@code null} if 353 * no shape is set (rectangular window). 354 * 355 * @serial 356 * @see #getShape() 357 * @see #setShape(Shape) 358 * @since 1.7 359 */ 360 private Shape shape = null; 361 362 private static final String base = "win"; 363 private static int nameCounter = 0; 364 365 /* 366 * JDK 1.1 serialVersionUID 367 */ 368 private static final long serialVersionUID = 4497834738069338734L; 369 370 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 371 372 private static final boolean locationByPlatformProp; 373 374 transient boolean isTrayIconWindow = false; 375 376 /** 377 * These fields are initialized in the native peer code 378 * or via AWTAccessor's WindowAccessor. 379 */ 380 private transient volatile int securityWarningWidth = 0; 381 private transient volatile int securityWarningHeight = 0; 382 383 /** 384 * These fields represent the desired location for the security 385 * warning if this window is untrusted. 386 * See com.sun.awt.SecurityWarning for more details. 387 */ 388 private transient double securityWarningPointX = 2.0; 389 private transient double securityWarningPointY = 0.0; 390 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 391 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 392 393 static { 394 /* ensure that the necessary native libraries are loaded */ 395 Toolkit.loadLibraries(); 396 if (!GraphicsEnvironment.isHeadless()) { 397 initIDs(); 398 } 399 400 String s = java.security.AccessController.doPrivileged( 401 new GetPropertyAction("java.awt.syncLWRequests")); 402 systemSyncLWRequests = (s != null && s.equals("true")); 403 s = java.security.AccessController.doPrivileged( 404 new GetPropertyAction("java.awt.Window.locationByPlatform")); 405 locationByPlatformProp = (s != null && s.equals("true")); 406 } 407 408 /** 409 * Initialize JNI field and method IDs for fields that may be 410 accessed from C. 411 */ 412 private static native void initIDs(); 413 414 /** 415 * Constructs a new, initially invisible window in default size with the 416 * specified {@code GraphicsConfiguration}. 417 * <p> 418 * If there is a security manager, then it is invoked to check 419 * {@code AWTPermission("showWindowWithoutWarningBanner")} 420 * to determine whether or not the window must be displayed with 421 * a warning banner. 422 * 423 * @param gc the {@code GraphicsConfiguration} of the target screen 424 * device. If {@code gc} is {@code null}, the system default 425 * {@code GraphicsConfiguration} is assumed 426 * @exception IllegalArgumentException if {@code gc} 427 * is not from a screen device 428 * @exception HeadlessException when 429 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 430 * 431 * @see java.awt.GraphicsEnvironment#isHeadless 432 */ 433 Window(GraphicsConfiguration gc) { 434 init(gc); 435 } 436 437 transient Object anchor = new Object(); 438 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 439 WeakReference<Window> owner; 440 final WeakReference<Window> weakThis; 441 final WeakReference<AppContext> context; 442 443 WindowDisposerRecord(AppContext context, Window victim) { 444 weakThis = victim.weakThis; 445 this.context = new WeakReference<AppContext>(context); 446 } 447 448 public void updateOwner() { 449 Window victim = weakThis.get(); 450 owner = (victim == null) 451 ? null 452 : new WeakReference<Window>(victim.getOwner()); 453 } 454 455 public void dispose() { 456 if (owner != null) { 457 Window parent = owner.get(); 458 if (parent != null) { 459 parent.removeOwnedWindow(weakThis); 460 } 461 } 462 AppContext ac = context.get(); 463 if (null != ac) { 464 Window.removeFromWindowList(ac, weakThis); 465 } 466 } 467 } 468 469 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 470 GraphicsEnvironment.checkHeadless(); 471 472 if (gc == null) { 473 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 474 getDefaultScreenDevice().getDefaultConfiguration(); 475 } 476 setGraphicsConfiguration(gc); 477 478 return gc; 479 } 480 481 private void init(GraphicsConfiguration gc) { 482 GraphicsEnvironment.checkHeadless(); 483 484 syncLWRequests = systemSyncLWRequests; 485 486 weakThis = new WeakReference<Window>(this); 487 addToWindowList(); 488 489 setWarningString(); 490 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 491 this.visible = false; 492 493 gc = initGC(gc); 494 495 if (gc.getDevice().getType() != 496 GraphicsDevice.TYPE_RASTER_SCREEN) { 497 throw new IllegalArgumentException("not a screen device"); 498 } 499 setLayout(new BorderLayout()); 500 501 /* offset the initial location with the original of the screen */ 502 /* and any insets */ 503 Rectangle screenBounds = gc.getBounds(); 504 Insets screenInsets = getToolkit().getScreenInsets(gc); 505 int x = getX() + screenBounds.x + screenInsets.left; 506 int y = getY() + screenBounds.y + screenInsets.top; 507 if (x != this.x || y != this.y) { 508 setLocation(x, y); 509 /* reset after setLocation */ 510 setLocationByPlatform(locationByPlatformProp); 511 } 512 513 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 514 disposerRecord = new WindowDisposerRecord(appContext, this); 515 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 516 517 SunToolkit.checkAndSetPolicy(this); 518 } 519 520 /** 521 * Constructs a new, initially invisible window in the default size. 522 * <p> 523 * If there is a security manager set, it is invoked to check 524 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 525 * If that check fails with a {@code SecurityException} then a warning 526 * banner is created. 527 * 528 * @exception HeadlessException when 529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 530 * 531 * @see java.awt.GraphicsEnvironment#isHeadless 532 */ 533 Window() throws HeadlessException { 534 GraphicsEnvironment.checkHeadless(); 535 init((GraphicsConfiguration)null); 536 } 537 538 /** 539 * Constructs a new, initially invisible window with the specified 540 * {@code Frame} as its owner. The window will not be focusable 541 * unless its owner is showing on the screen. 542 * <p> 543 * If there is a security manager set, it is invoked to check 544 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 545 * If that check fails with a {@code SecurityException} then a warning 546 * banner is created. 547 * 548 * @param owner the {@code Frame} to act as owner or {@code null} 549 * if this window has no owner 550 * @exception IllegalArgumentException if the {@code owner}'s 551 * {@code GraphicsConfiguration} is not from a screen device 552 * @exception HeadlessException when 553 * {@code GraphicsEnvironment.isHeadless} returns {@code true} 554 * 555 * @see java.awt.GraphicsEnvironment#isHeadless 556 * @see #isShowing 557 */ 558 public Window(Frame owner) { 559 this(owner == null ? (GraphicsConfiguration)null : 560 owner.getGraphicsConfiguration()); 561 ownedInit(owner); 562 } 563 564 /** 565 * Constructs a new, initially invisible window with the specified 566 * {@code Window} as its owner. This window will not be focusable 567 * unless its nearest owning {@code Frame} or {@code Dialog} 568 * is showing on the screen. 569 * <p> 570 * If there is a security manager set, it is invoked to check 571 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 572 * If that check fails with a {@code SecurityException} then a 573 * warning banner is created. 574 * 575 * @param owner the {@code Window} to act as owner or 576 * {@code null} if this window has no owner 577 * @exception IllegalArgumentException if the {@code owner}'s 578 * {@code GraphicsConfiguration} is not from a screen device 579 * @exception HeadlessException when 580 * {@code GraphicsEnvironment.isHeadless()} returns 581 * {@code true} 582 * 583 * @see java.awt.GraphicsEnvironment#isHeadless 584 * @see #isShowing 585 * 586 * @since 1.2 587 */ 588 public Window(Window owner) { 589 this(owner == null ? (GraphicsConfiguration)null : 590 owner.getGraphicsConfiguration()); 591 ownedInit(owner); 592 } 593 594 /** 595 * Constructs a new, initially invisible window with the specified owner 596 * {@code Window} and a {@code GraphicsConfiguration} 597 * of a screen device. The Window will not be focusable unless 598 * its nearest owning {@code Frame} or {@code Dialog} 599 * is showing on the screen. 600 * <p> 601 * If there is a security manager set, it is invoked to check 602 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that 603 * check fails with a {@code SecurityException} then a warning banner 604 * is created. 605 * 606 * @param owner the window to act as owner or {@code null} 607 * if this window has no owner 608 * @param gc the {@code GraphicsConfiguration} of the target 609 * screen device; if {@code gc} is {@code null}, 610 * the system default {@code GraphicsConfiguration} is assumed 611 * @exception IllegalArgumentException if {@code gc} 612 * is not from a screen device 613 * @exception HeadlessException when 614 * {@code GraphicsEnvironment.isHeadless()} returns 615 * {@code true} 616 * 617 * @see java.awt.GraphicsEnvironment#isHeadless 618 * @see GraphicsConfiguration#getBounds 619 * @see #isShowing 620 * @since 1.3 621 */ 622 public Window(Window owner, GraphicsConfiguration gc) { 623 this(gc); 624 ownedInit(owner); 625 } 626 627 private void ownedInit(Window owner) { 628 this.parent = owner; 629 if (owner != null) { 630 owner.addOwnedWindow(weakThis); 631 if (owner.isAlwaysOnTop()) { 632 try { 633 setAlwaysOnTop(true); 634 } catch (SecurityException ignore) { 635 } 636 } 637 } 638 639 // WindowDisposerRecord requires a proper value of parent field. 640 disposerRecord.updateOwner(); 641 } 642 643 /** 644 * Construct a name for this component. Called by getName() when the 645 * name is null. 646 */ 647 String constructComponentName() { 648 synchronized (Window.class) { 649 return base + nameCounter++; 650 } 651 } 652 653 /** 654 * Returns the sequence of images to be displayed as the icon for this window. 655 * <p> 656 * This method returns a copy of the internally stored list, so all operations 657 * on the returned object will not affect the window's behavior. 658 * 659 * @return the copy of icon images' list for this window, or 660 * empty list if this window doesn't have icon images. 661 * @see #setIconImages 662 * @see #setIconImage(Image) 663 * @since 1.6 664 */ 665 public java.util.List<Image> getIconImages() { 666 java.util.List<Image> icons = this.icons; 667 if (icons == null || icons.size() == 0) { 668 return new ArrayList<Image>(); 669 } 670 return new ArrayList<Image>(icons); 671 } 672 673 /** 674 * Sets the sequence of images to be displayed as the icon 675 * for this window. Subsequent calls to {@code getIconImages} will 676 * always return a copy of the {@code icons} list. 677 * <p> 678 * Depending on the platform capabilities one or several images 679 * of different dimensions will be used as the window's icon. 680 * <p> 681 * The {@code icons} list is scanned for the images of most 682 * appropriate dimensions from the beginning. If the list contains 683 * several images of the same size, the first will be used. 684 * <p> 685 * Ownerless windows with no icon specified use platform-default icon. 686 * The icon of an owned window may be inherited from the owner 687 * unless explicitly overridden. 688 * Setting the icon to {@code null} or empty list restores 689 * the default behavior. 690 * <p> 691 * Note : Native windowing systems may use different images of differing 692 * dimensions to represent a window, depending on the context (e.g. 693 * window decoration, window list, taskbar, etc.). They could also use 694 * just a single image for all contexts or no image at all. 695 * 696 * @param icons the list of icon images to be displayed. 697 * @see #getIconImages() 698 * @see #setIconImage(Image) 699 * @since 1.6 700 */ 701 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 702 this.icons = (icons == null) ? new ArrayList<Image>() : 703 new ArrayList<Image>(icons); 704 WindowPeer peer = (WindowPeer)this.peer; 705 if (peer != null) { 706 peer.updateIconImages(); 707 } 708 // Always send a property change event 709 firePropertyChange("iconImage", null, null); 710 } 711 712 /** 713 * Sets the image to be displayed as the icon for this window. 714 * <p> 715 * This method can be used instead of {@link #setIconImages setIconImages()} 716 * to specify a single image as a window's icon. 717 * <p> 718 * The following statement: 719 * <pre> 720 * setIconImage(image); 721 * </pre> 722 * is equivalent to: 723 * <pre> 724 * ArrayList<Image> imageList = new ArrayList<Image>(); 725 * imageList.add(image); 726 * setIconImages(imageList); 727 * </pre> 728 * <p> 729 * Note : Native windowing systems may use different images of differing 730 * dimensions to represent a window, depending on the context (e.g. 731 * window decoration, window list, taskbar, etc.). They could also use 732 * just a single image for all contexts or no image at all. 733 * 734 * @param image the icon image to be displayed. 735 * @see #setIconImages 736 * @see #getIconImages() 737 * @since 1.6 738 */ 739 public void setIconImage(Image image) { 740 ArrayList<Image> imageList = new ArrayList<Image>(); 741 if (image != null) { 742 imageList.add(image); 743 } 744 setIconImages(imageList); 745 } 746 747 /** 748 * Makes this Window displayable by creating the connection to its 749 * native screen resource. 750 * This method is called internally by the toolkit and should 751 * not be called directly by programs. 752 * @see Component#isDisplayable 753 * @see Container#removeNotify 754 * @since 1.0 755 */ 756 public void addNotify() { 757 synchronized (getTreeLock()) { 758 Container parent = this.parent; 759 if (parent != null && parent.peer == null) { 760 parent.addNotify(); 761 } 762 if (peer == null) { 763 peer = getComponentFactory().createWindow(this); 764 } 765 synchronized (allWindows) { 766 allWindows.add(this); 767 } 768 super.addNotify(); 769 } 770 } 771 772 /** 773 * {@inheritDoc} 774 */ 775 public void removeNotify() { 776 synchronized (getTreeLock()) { 777 synchronized (allWindows) { 778 allWindows.remove(this); 779 } 780 super.removeNotify(); 781 } 782 } 783 784 /** 785 * Causes this Window to be sized to fit the preferred size 786 * and layouts of its subcomponents. The resulting width and 787 * height of the window are automatically enlarged if either 788 * of dimensions is less than the minimum size as specified 789 * by the previous call to the {@code setMinimumSize} method. 790 * <p> 791 * If the window and/or its owner are not displayable yet, 792 * both of them are made displayable before calculating 793 * the preferred size. The Window is validated after its 794 * size is being calculated. 795 * 796 * @see Component#isDisplayable 797 * @see #setMinimumSize 798 */ 799 @SuppressWarnings("deprecation") 800 public void pack() { 801 Container parent = this.parent; 802 if (parent != null && parent.peer == null) { 803 parent.addNotify(); 804 } 805 if (peer == null) { 806 addNotify(); 807 } 808 Dimension newSize = getPreferredSize(); 809 if (peer != null) { 810 setClientSize(newSize.width, newSize.height); 811 } 812 813 if(beforeFirstShow) { 814 isPacked = true; 815 } 816 817 validateUnconditionally(); 818 } 819 820 /** 821 * Sets the minimum size of this window to a constant 822 * value. Subsequent calls to {@code getMinimumSize} 823 * will always return this value. If current window's 824 * size is less than {@code minimumSize} the size of the 825 * window is automatically enlarged to honor the minimum size. 826 * <p> 827 * If the {@code setSize} or {@code setBounds} methods 828 * are called afterwards with a width or height less than 829 * that was specified by the {@code setMinimumSize} method 830 * the window is automatically enlarged to meet 831 * the {@code minimumSize} value. The {@code minimumSize} 832 * value also affects the behaviour of the {@code pack} method. 833 * <p> 834 * The default behavior is restored by setting the minimum size 835 * parameter to the {@code null} value. 836 * <p> 837 * Resizing operation may be restricted if the user tries 838 * to resize window below the {@code minimumSize} value. 839 * This behaviour is platform-dependent. 840 * 841 * @param minimumSize the new minimum size of this window 842 * @see Component#setMinimumSize 843 * @see #getMinimumSize 844 * @see #isMinimumSizeSet 845 * @see #setSize(Dimension) 846 * @see #pack 847 * @since 1.6 848 */ 849 public void setMinimumSize(Dimension minimumSize) { 850 synchronized (getTreeLock()) { 851 super.setMinimumSize(minimumSize); 852 Dimension size = getSize(); 853 if (isMinimumSizeSet()) { 854 if (size.width < minimumSize.width || size.height < minimumSize.height) { 855 int nw = Math.max(width, minimumSize.width); 856 int nh = Math.max(height, minimumSize.height); 857 setSize(nw, nh); 858 } 859 } 860 if (peer != null) { 861 ((WindowPeer)peer).updateMinimumSize(); 862 } 863 } 864 } 865 866 /** 867 * {@inheritDoc} 868 * <p> 869 * The {@code d.width} and {@code d.height} values 870 * are automatically enlarged if either is less than 871 * the minimum size as specified by previous call to 872 * {@code setMinimumSize}. 873 * <p> 874 * The method changes the geometry-related data. Therefore, 875 * the native windowing system may ignore such requests, or it may modify 876 * the requested data, so that the {@code Window} object is placed and sized 877 * in a way that corresponds closely to the desktop settings. 878 * 879 * @see #getSize 880 * @see #setBounds 881 * @see #setMinimumSize 882 * @since 1.6 883 */ 884 public void setSize(Dimension d) { 885 super.setSize(d); 886 } 887 888 /** 889 * {@inheritDoc} 890 * <p> 891 * The {@code width} and {@code height} values 892 * are automatically enlarged if either is less than 893 * the minimum size as specified by previous call to 894 * {@code setMinimumSize}. 895 * <p> 896 * The method changes the geometry-related data. Therefore, 897 * the native windowing system may ignore such requests, or it may modify 898 * the requested data, so that the {@code Window} object is placed and sized 899 * in a way that corresponds closely to the desktop settings. 900 * 901 * @see #getSize 902 * @see #setBounds 903 * @see #setMinimumSize 904 * @since 1.6 905 */ 906 public void setSize(int width, int height) { 907 super.setSize(width, height); 908 } 909 910 /** 911 * {@inheritDoc} 912 * <p> 913 * The method changes the geometry-related data. Therefore, 914 * the native windowing system may ignore such requests, or it may modify 915 * the requested data, so that the {@code Window} object is placed and sized 916 * in a way that corresponds closely to the desktop settings. 917 */ 918 @Override 919 public void setLocation(int x, int y) { 920 super.setLocation(x, y); 921 } 922 923 /** 924 * {@inheritDoc} 925 * <p> 926 * The method changes the geometry-related data. Therefore, 927 * the native windowing system may ignore such requests, or it may modify 928 * the requested data, so that the {@code Window} object is placed and sized 929 * in a way that corresponds closely to the desktop settings. 930 */ 931 @Override 932 public void setLocation(Point p) { 933 super.setLocation(p); 934 } 935 936 /** 937 * @deprecated As of JDK version 1.1, 938 * replaced by {@code setBounds(int, int, int, int)}. 939 */ 940 @Deprecated 941 public void reshape(int x, int y, int width, int height) { 942 if (isMinimumSizeSet()) { 943 Dimension minSize = getMinimumSize(); 944 if (width < minSize.width) { 945 width = minSize.width; 946 } 947 if (height < minSize.height) { 948 height = minSize.height; 949 } 950 } 951 super.reshape(x, y, width, height); 952 } 953 954 void setClientSize(int w, int h) { 955 synchronized (getTreeLock()) { 956 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 957 setBounds(x, y, w, h); 958 } 959 } 960 961 private static final AtomicBoolean 962 beforeFirstWindowShown = new AtomicBoolean(true); 963 964 final void closeSplashScreen() { 965 if (isTrayIconWindow) { 966 return; 967 } 968 if (beforeFirstWindowShown.getAndSet(false)) { 969 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 970 // the object if it hasn't been requested by user code explicitly 971 SunToolkit.closeSplashScreen(); 972 SplashScreen.markClosed(); 973 } 974 } 975 976 /** 977 * Shows or hides this {@code Window} depending on the value of parameter 978 * {@code b}. 979 * <p> 980 * If the method shows the window then the window is also made 981 * focused under the following conditions: 982 * <ul> 983 * <li> The {@code Window} meets the requirements outlined in the 984 * {@link #isFocusableWindow} method. 985 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 986 * <li> Native windowing system allows the {@code Window} to get focused. 987 * </ul> 988 * There is an exception for the second condition (the value of the 989 * {@code autoRequestFocus} property). The property is not taken into account if the 990 * window is a modal dialog, which blocks the currently focused window. 991 * <p> 992 * Developers must never assume that the window is the focused or active window 993 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 994 * @param b if {@code true}, makes the {@code Window} visible, 995 * otherwise hides the {@code Window}. 996 * If the {@code Window} and/or its owner 997 * are not yet displayable, both are made displayable. The 998 * {@code Window} will be validated prior to being made visible. 999 * If the {@code Window} is already visible, this will bring the 1000 * {@code Window} to the front.<p> 1001 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1002 * of its owned children. 1003 * The {@code Window} and its subcomponents can be made visible again 1004 * with a call to {@code #setVisible(true)}. 1005 * @see java.awt.Component#isDisplayable 1006 * @see java.awt.Component#setVisible 1007 * @see java.awt.Window#toFront 1008 * @see java.awt.Window#dispose 1009 * @see java.awt.Window#setAutoRequestFocus 1010 * @see java.awt.Window#isFocusableWindow 1011 */ 1012 public void setVisible(boolean b) { 1013 super.setVisible(b); 1014 } 1015 1016 /** 1017 * Makes the Window visible. If the Window and/or its owner 1018 * are not yet displayable, both are made displayable. The 1019 * Window will be validated prior to being made visible. 1020 * If the Window is already visible, this will bring the Window 1021 * to the front. 1022 * @see Component#isDisplayable 1023 * @see #toFront 1024 * @deprecated As of JDK version 1.5, replaced by 1025 * {@link #setVisible(boolean)}. 1026 */ 1027 @Deprecated 1028 public void show() { 1029 if (peer == null) { 1030 addNotify(); 1031 } 1032 validateUnconditionally(); 1033 1034 isInShow = true; 1035 if (visible) { 1036 toFront(); 1037 } else { 1038 beforeFirstShow = false; 1039 closeSplashScreen(); 1040 Dialog.checkShouldBeBlocked(this); 1041 super.show(); 1042 synchronized (getTreeLock()) { 1043 this.locationByPlatform = false; 1044 } 1045 for (int i = 0; i < ownedWindowList.size(); i++) { 1046 Window child = ownedWindowList.elementAt(i).get(); 1047 if ((child != null) && child.showWithParent) { 1048 child.show(); 1049 child.showWithParent = false; 1050 } // endif 1051 } // endfor 1052 if (!isModalBlocked()) { 1053 updateChildrenBlocking(); 1054 } else { 1055 // fix for 6532736: after this window is shown, its blocker 1056 // should be raised to front 1057 modalBlocker.toFront_NoClientCode(); 1058 } 1059 if (this instanceof Frame || this instanceof Dialog) { 1060 updateChildFocusableWindowState(this); 1061 } 1062 } 1063 isInShow = false; 1064 1065 // If first time shown, generate WindowOpened event 1066 if ((state & OPENED) == 0) { 1067 postWindowEvent(WindowEvent.WINDOW_OPENED); 1068 state |= OPENED; 1069 } 1070 } 1071 1072 static void updateChildFocusableWindowState(Window w) { 1073 if (w.peer != null && w.isShowing()) { 1074 ((WindowPeer)w.peer).updateFocusableWindowState(); 1075 } 1076 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1077 Window child = w.ownedWindowList.elementAt(i).get(); 1078 if (child != null) { 1079 updateChildFocusableWindowState(child); 1080 } 1081 } 1082 } 1083 1084 synchronized void postWindowEvent(int id) { 1085 if (windowListener != null 1086 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1087 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1088 WindowEvent e = new WindowEvent(this, id); 1089 Toolkit.getEventQueue().postEvent(e); 1090 } 1091 } 1092 1093 /** 1094 * Hide this Window, its subcomponents, and all of its owned children. 1095 * The Window and its subcomponents can be made visible again 1096 * with a call to {@code show}. 1097 * @see #show 1098 * @see #dispose 1099 * @deprecated As of JDK version 1.5, replaced by 1100 * {@link #setVisible(boolean)}. 1101 */ 1102 @Deprecated 1103 public void hide() { 1104 synchronized(ownedWindowList) { 1105 for (int i = 0; i < ownedWindowList.size(); i++) { 1106 Window child = ownedWindowList.elementAt(i).get(); 1107 if ((child != null) && child.visible) { 1108 child.hide(); 1109 child.showWithParent = true; 1110 } 1111 } 1112 } 1113 if (isModalBlocked()) { 1114 modalBlocker.unblockWindow(this); 1115 } 1116 super.hide(); 1117 synchronized (getTreeLock()) { 1118 this.locationByPlatform = false; 1119 } 1120 } 1121 1122 final void clearMostRecentFocusOwnerOnHide() { 1123 /* do nothing */ 1124 } 1125 1126 /** 1127 * Releases all of the native screen resources used by this 1128 * {@code Window}, its subcomponents, and all of its owned 1129 * children. That is, the resources for these {@code Component}s 1130 * will be destroyed, any memory they consume will be returned to the 1131 * OS, and they will be marked as undisplayable. 1132 * <p> 1133 * The {@code Window} and its subcomponents can be made displayable 1134 * again by rebuilding the native resources with a subsequent call to 1135 * {@code pack} or {@code show}. The states of the recreated 1136 * {@code Window} and its subcomponents will be identical to the 1137 * states of these objects at the point where the {@code Window} 1138 * was disposed (not accounting for additional modifications between 1139 * those actions). 1140 * <p> 1141 * <b>Note</b>: When the last displayable window 1142 * within the Java virtual machine (VM) is disposed of, the VM may 1143 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown"> 1144 * AWT Threading Issues</a> for more information. 1145 * @see Component#isDisplayable 1146 * @see #pack 1147 * @see #show 1148 */ 1149 public void dispose() { 1150 doDispose(); 1151 } 1152 1153 /* 1154 * Fix for 4872170. 1155 * If dispose() is called on parent then its children have to be disposed as well 1156 * as reported in javadoc. So we need to implement this functionality even if a 1157 * child overrides dispose() in a wrong way without calling super.dispose(). 1158 */ 1159 void disposeImpl() { 1160 dispose(); 1161 if (peer != null) { 1162 doDispose(); 1163 } 1164 } 1165 1166 void doDispose() { 1167 class DisposeAction implements Runnable { 1168 public void run() { 1169 disposing = true; 1170 try { 1171 // Check if this window is the fullscreen window for the 1172 // device. Exit the fullscreen mode prior to disposing 1173 // of the window if that's the case. 1174 GraphicsDevice gd = getGraphicsConfiguration().getDevice(); 1175 if (gd.getFullScreenWindow() == Window.this) { 1176 gd.setFullScreenWindow(null); 1177 } 1178 1179 Object[] ownedWindowArray; 1180 synchronized(ownedWindowList) { 1181 ownedWindowArray = new Object[ownedWindowList.size()]; 1182 ownedWindowList.copyInto(ownedWindowArray); 1183 } 1184 for (int i = 0; i < ownedWindowArray.length; i++) { 1185 Window child = (Window) (((WeakReference) 1186 (ownedWindowArray[i])).get()); 1187 if (child != null) { 1188 child.disposeImpl(); 1189 } 1190 } 1191 hide(); 1192 beforeFirstShow = true; 1193 removeNotify(); 1194 synchronized (inputContextLock) { 1195 if (inputContext != null) { 1196 inputContext.dispose(); 1197 inputContext = null; 1198 } 1199 } 1200 clearCurrentFocusCycleRootOnHide(); 1201 } finally { 1202 disposing = false; 1203 } 1204 } 1205 } 1206 boolean fireWindowClosedEvent = isDisplayable(); 1207 DisposeAction action = new DisposeAction(); 1208 if (EventQueue.isDispatchThread()) { 1209 action.run(); 1210 } 1211 else { 1212 try { 1213 EventQueue.invokeAndWait(this, action); 1214 } 1215 catch (InterruptedException e) { 1216 System.err.println("Disposal was interrupted:"); 1217 e.printStackTrace(); 1218 } 1219 catch (InvocationTargetException e) { 1220 System.err.println("Exception during disposal:"); 1221 e.printStackTrace(); 1222 } 1223 } 1224 // Execute outside the Runnable because postWindowEvent is 1225 // synchronized on (this). We don't need to synchronize the call 1226 // on the EventQueue anyways. 1227 if (fireWindowClosedEvent) { 1228 postWindowEvent(WindowEvent.WINDOW_CLOSED); 1229 } 1230 } 1231 1232 /* 1233 * Should only be called while holding the tree lock. 1234 * It's overridden here because parent == owner in Window, 1235 * and we shouldn't adjust counter on owner 1236 */ 1237 void adjustListeningChildrenOnParent(long mask, int num) { 1238 } 1239 1240 // Should only be called while holding tree lock 1241 void adjustDescendantsOnParent(int num) { 1242 // do nothing since parent == owner and we shouldn't 1243 // adjust counter on owner 1244 } 1245 1246 /** 1247 * If this Window is visible, brings this Window to the front and may make 1248 * it the focused Window. 1249 * <p> 1250 * Places this Window at the top of the stacking order and shows it in 1251 * front of any other Windows in this VM. No action will take place if this 1252 * Window is not visible. Some platforms do not allow Windows which own 1253 * other Windows to appear on top of those owned Windows. Some platforms 1254 * may not permit this VM to place its Windows above windows of native 1255 * applications, or Windows of other VMs. This permission may depend on 1256 * whether a Window in this VM is already focused. Every attempt will be 1257 * made to move this Window as high as possible in the stacking order; 1258 * however, developers should not assume that this method will move this 1259 * Window above all other windows in every situation. 1260 * <p> 1261 * Developers must never assume that this Window is the focused or active 1262 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED 1263 * event. On platforms where the top-most window is the focused window, this 1264 * method will <b>probably</b> focus this Window (if it is not already focused) 1265 * under the following conditions: 1266 * <ul> 1267 * <li> The window meets the requirements outlined in the 1268 * {@link #isFocusableWindow} method. 1269 * <li> The window's property {@code autoRequestFocus} is of the 1270 * {@code true} value. 1271 * <li> Native windowing system allows the window to get focused. 1272 * </ul> 1273 * On platforms where the stacking order does not typically affect the focused 1274 * window, this method will <b>probably</b> leave the focused and active 1275 * Windows unchanged. 1276 * <p> 1277 * If this method causes this Window to be focused, and this Window is a 1278 * Frame or a Dialog, it will also become activated. If this Window is 1279 * focused, but it is not a Frame or a Dialog, then the first Frame or 1280 * Dialog that is an owner of this Window will be activated. 1281 * <p> 1282 * If this window is blocked by modal dialog, then the blocking dialog 1283 * is brought to the front and remains above the blocked window. 1284 * 1285 * @see #toBack 1286 * @see #setAutoRequestFocus 1287 * @see #isFocusableWindow 1288 */ 1289 public void toFront() { 1290 toFront_NoClientCode(); 1291 } 1292 1293 // This functionality is implemented in a final package-private method 1294 // to insure that it cannot be overridden by client subclasses. 1295 final void toFront_NoClientCode() { 1296 if (visible) { 1297 WindowPeer peer = (WindowPeer)this.peer; 1298 if (peer != null) { 1299 peer.toFront(); 1300 } 1301 if (isModalBlocked()) { 1302 modalBlocker.toFront_NoClientCode(); 1303 } 1304 } 1305 } 1306 1307 /** 1308 * If this Window is visible, sends this Window to the back and may cause 1309 * it to lose focus or activation if it is the focused or active Window. 1310 * <p> 1311 * Places this Window at the bottom of the stacking order and shows it 1312 * behind any other Windows in this VM. No action will take place is this 1313 * Window is not visible. Some platforms do not allow Windows which are 1314 * owned by other Windows to appear below their owners. Every attempt will 1315 * be made to move this Window as low as possible in the stacking order; 1316 * however, developers should not assume that this method will move this 1317 * Window below all other windows in every situation. 1318 * <p> 1319 * Because of variations in native windowing systems, no guarantees about 1320 * changes to the focused and active Windows can be made. Developers must 1321 * never assume that this Window is no longer the focused or active Window 1322 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED 1323 * event. On platforms where the top-most window is the focused window, 1324 * this method will <b>probably</b> cause this Window to lose focus. In 1325 * that case, the next highest, focusable Window in this VM will receive 1326 * focus. On platforms where the stacking order does not typically affect 1327 * the focused window, this method will <b>probably</b> leave the focused 1328 * and active Windows unchanged. 1329 * 1330 * @see #toFront 1331 */ 1332 public void toBack() { 1333 toBack_NoClientCode(); 1334 } 1335 1336 // This functionality is implemented in a final package-private method 1337 // to insure that it cannot be overridden by client subclasses. 1338 final void toBack_NoClientCode() { 1339 if(isAlwaysOnTop()) { 1340 try { 1341 setAlwaysOnTop(false); 1342 }catch(SecurityException e) { 1343 } 1344 } 1345 if (visible) { 1346 WindowPeer peer = (WindowPeer)this.peer; 1347 if (peer != null) { 1348 peer.toBack(); 1349 } 1350 } 1351 } 1352 1353 /** 1354 * Returns the toolkit of this frame. 1355 * @return the toolkit of this window. 1356 * @see Toolkit 1357 * @see Toolkit#getDefaultToolkit 1358 * @see Component#getToolkit 1359 */ 1360 public Toolkit getToolkit() { 1361 return Toolkit.getDefaultToolkit(); 1362 } 1363 1364 /** 1365 * Gets the warning string that is displayed with this window. 1366 * If this window is insecure, the warning string is displayed 1367 * somewhere in the visible area of the window. A window is 1368 * insecure if there is a security manager and the security 1369 * manager denies 1370 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 1371 * <p> 1372 * If the window is secure, then {@code getWarningString} 1373 * returns {@code null}. If the window is insecure, this 1374 * method checks for the system property 1375 * {@code awt.appletWarning} 1376 * and returns the string value of that property. 1377 * @return the warning string for this window. 1378 */ 1379 public final String getWarningString() { 1380 return warningString; 1381 } 1382 1383 private void setWarningString() { 1384 warningString = null; 1385 SecurityManager sm = System.getSecurityManager(); 1386 if (sm != null) { 1387 try { 1388 sm.checkPermission(AWTPermissions.TOPLEVEL_WINDOW_PERMISSION); 1389 } catch (SecurityException se) { 1390 // make sure the privileged action is only 1391 // for getting the property! We don't want the 1392 // above checkPermission call to always succeed! 1393 warningString = AccessController.doPrivileged( 1394 new GetPropertyAction("awt.appletWarning", 1395 "Java Applet Window")); 1396 } 1397 } 1398 } 1399 1400 /** 1401 * Gets the {@code Locale} object that is associated 1402 * with this window, if the locale has been set. 1403 * If no locale has been set, then the default locale 1404 * is returned. 1405 * @return the locale that is set for this window. 1406 * @see java.util.Locale 1407 * @since 1.1 1408 */ 1409 public Locale getLocale() { 1410 if (this.locale == null) { 1411 return Locale.getDefault(); 1412 } 1413 return this.locale; 1414 } 1415 1416 /** 1417 * Gets the input context for this window. A window always has an input context, 1418 * which is shared by subcomponents unless they create and set their own. 1419 * @see Component#getInputContext 1420 * @since 1.2 1421 */ 1422 public InputContext getInputContext() { 1423 synchronized (inputContextLock) { 1424 if (inputContext == null) { 1425 inputContext = InputContext.getInstance(); 1426 } 1427 } 1428 return inputContext; 1429 } 1430 1431 /** 1432 * Set the cursor image to a specified cursor. 1433 * <p> 1434 * The method may have no visual effect if the Java platform 1435 * implementation and/or the native system do not support 1436 * changing the mouse cursor shape. 1437 * @param cursor One of the constants defined 1438 * by the {@code Cursor} class. If this parameter is null 1439 * then the cursor for this window will be set to the type 1440 * Cursor.DEFAULT_CURSOR. 1441 * @see Component#getCursor 1442 * @see Cursor 1443 * @since 1.1 1444 */ 1445 public void setCursor(Cursor cursor) { 1446 if (cursor == null) { 1447 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 1448 } 1449 super.setCursor(cursor); 1450 } 1451 1452 /** 1453 * Returns the owner of this window. 1454 * 1455 * @return the owner of this window 1456 * @since 1.2 1457 */ 1458 public Window getOwner() { 1459 return getOwner_NoClientCode(); 1460 } 1461 final Window getOwner_NoClientCode() { 1462 return (Window)parent; 1463 } 1464 1465 /** 1466 * Return an array containing all the windows this 1467 * window currently owns. 1468 * 1469 * @return the array of all the owned windows 1470 * @since 1.2 1471 */ 1472 public Window[] getOwnedWindows() { 1473 return getOwnedWindows_NoClientCode(); 1474 } 1475 final Window[] getOwnedWindows_NoClientCode() { 1476 Window realCopy[]; 1477 1478 synchronized(ownedWindowList) { 1479 // Recall that ownedWindowList is actually a Vector of 1480 // WeakReferences and calling get() on one of these references 1481 // may return null. Make two arrays-- one the size of the 1482 // Vector (fullCopy with size fullSize), and one the size of 1483 // all non-null get()s (realCopy with size realSize). 1484 int fullSize = ownedWindowList.size(); 1485 int realSize = 0; 1486 Window fullCopy[] = new Window[fullSize]; 1487 1488 for (int i = 0; i < fullSize; i++) { 1489 fullCopy[realSize] = ownedWindowList.elementAt(i).get(); 1490 1491 if (fullCopy[realSize] != null) { 1492 realSize++; 1493 } 1494 } 1495 1496 if (fullSize != realSize) { 1497 realCopy = Arrays.copyOf(fullCopy, realSize); 1498 } else { 1499 realCopy = fullCopy; 1500 } 1501 } 1502 1503 return realCopy; 1504 } 1505 1506 boolean isModalBlocked() { 1507 return modalBlocker != null; 1508 } 1509 1510 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) { 1511 this.modalBlocker = blocked ? blocker : null; 1512 if (peerCall) { 1513 WindowPeer peer = (WindowPeer)this.peer; 1514 if (peer != null) { 1515 peer.setModalBlocked(blocker, blocked); 1516 } 1517 } 1518 } 1519 1520 Dialog getModalBlocker() { 1521 return modalBlocker; 1522 } 1523 1524 /* 1525 * Returns a list of all displayable Windows, i. e. all the 1526 * Windows which peer is not null. 1527 * 1528 * @see #addNotify 1529 * @see #removeNotify 1530 */ 1531 static IdentityArrayList<Window> getAllWindows() { 1532 synchronized (allWindows) { 1533 IdentityArrayList<Window> v = new IdentityArrayList<Window>(); 1534 v.addAll(allWindows); 1535 return v; 1536 } 1537 } 1538 1539 static IdentityArrayList<Window> getAllUnblockedWindows() { 1540 synchronized (allWindows) { 1541 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>(); 1542 for (int i = 0; i < allWindows.size(); i++) { 1543 Window w = allWindows.get(i); 1544 if (!w.isModalBlocked()) { 1545 unblocked.add(w); 1546 } 1547 } 1548 return unblocked; 1549 } 1550 } 1551 1552 private static Window[] getWindows(AppContext appContext) { 1553 synchronized (Window.class) { 1554 Window realCopy[]; 1555 @SuppressWarnings("unchecked") 1556 Vector<WeakReference<Window>> windowList = 1557 (Vector<WeakReference<Window>>)appContext.get(Window.class); 1558 if (windowList != null) { 1559 int fullSize = windowList.size(); 1560 int realSize = 0; 1561 Window fullCopy[] = new Window[fullSize]; 1562 for (int i = 0; i < fullSize; i++) { 1563 Window w = windowList.get(i).get(); 1564 if (w != null) { 1565 fullCopy[realSize++] = w; 1566 } 1567 } 1568 if (fullSize != realSize) { 1569 realCopy = Arrays.copyOf(fullCopy, realSize); 1570 } else { 1571 realCopy = fullCopy; 1572 } 1573 } else { 1574 realCopy = new Window[0]; 1575 } 1576 return realCopy; 1577 } 1578 } 1579 1580 /** 1581 * Returns an array of all {@code Window}s, both owned and ownerless, 1582 * created by this application. 1583 * If called from an applet, the array includes only the {@code Window}s 1584 * accessible by that applet. 1585 * <p> 1586 * <b>Warning:</b> this method may return system created windows, such 1587 * as a print dialog. Applications should not assume the existence of 1588 * these dialogs, nor should an application assume anything about these 1589 * dialogs such as component positions, {@code LayoutManager}s 1590 * or serialization. 1591 * 1592 * @return the array of all the {@code Window}s created by the application 1593 * @see Frame#getFrames 1594 * @see Window#getOwnerlessWindows 1595 * 1596 * @since 1.6 1597 */ 1598 public static Window[] getWindows() { 1599 return getWindows(AppContext.getAppContext()); 1600 } 1601 1602 /** 1603 * Returns an array of all {@code Window}s created by this application 1604 * that have no owner. They include {@code Frame}s and ownerless 1605 * {@code Dialog}s and {@code Window}s. 1606 * If called from an applet, the array includes only the {@code Window}s 1607 * accessible by that applet. 1608 * <p> 1609 * <b>Warning:</b> this method may return system created windows, such 1610 * as a print dialog. Applications should not assume the existence of 1611 * these dialogs, nor should an application assume anything about these 1612 * dialogs such as component positions, {@code LayoutManager}s 1613 * or serialization. 1614 * 1615 * @return the array of all the ownerless {@code Window}s 1616 * created by this application 1617 * @see Frame#getFrames 1618 * @see Window#getWindows() 1619 * 1620 * @since 1.6 1621 */ 1622 public static Window[] getOwnerlessWindows() { 1623 Window[] allWindows = Window.getWindows(); 1624 1625 int ownerlessCount = 0; 1626 for (Window w : allWindows) { 1627 if (w.getOwner() == null) { 1628 ownerlessCount++; 1629 } 1630 } 1631 1632 Window[] ownerless = new Window[ownerlessCount]; 1633 int c = 0; 1634 for (Window w : allWindows) { 1635 if (w.getOwner() == null) { 1636 ownerless[c++] = w; 1637 } 1638 } 1639 1640 return ownerless; 1641 } 1642 1643 Window getDocumentRoot() { 1644 synchronized (getTreeLock()) { 1645 Window w = this; 1646 while (w.getOwner() != null) { 1647 w = w.getOwner(); 1648 } 1649 return w; 1650 } 1651 } 1652 1653 /** 1654 * Specifies the modal exclusion type for this window. If a window is modal 1655 * excluded, it is not blocked by some modal dialogs. See {@link 1656 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for 1657 * possible modal exclusion types. 1658 * <p> 1659 * If the given type is not supported, {@code NO_EXCLUDE} is used. 1660 * <p> 1661 * Note: changing the modal exclusion type for a visible window may have no 1662 * effect until it is hidden and then shown again. 1663 * 1664 * @param exclusionType the modal exclusion type for this window; a {@code null} 1665 * value is equivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE 1666 * NO_EXCLUDE} 1667 * @throws SecurityException if the calling thread does not have permission 1668 * to set the modal exclusion property to the window with the given 1669 * {@code exclusionType} 1670 * @see java.awt.Dialog.ModalExclusionType 1671 * @see java.awt.Window#getModalExclusionType 1672 * @see java.awt.Toolkit#isModalExclusionTypeSupported 1673 * 1674 * @since 1.6 1675 */ 1676 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) { 1677 if (exclusionType == null) { 1678 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1679 } 1680 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) { 1681 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1682 } 1683 if (modalExclusionType == exclusionType) { 1684 return; 1685 } 1686 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) { 1687 SecurityManager sm = System.getSecurityManager(); 1688 if (sm != null) { 1689 sm.checkPermission(AWTPermissions.TOOLKIT_MODALITY_PERMISSION); 1690 } 1691 } 1692 modalExclusionType = exclusionType; 1693 1694 // if we want on-fly changes, we need to uncomment the lines below 1695 // and override the method in Dialog to use modalShow() instead 1696 // of updateChildrenBlocking() 1697 /* 1698 if (isModalBlocked()) { 1699 modalBlocker.unblockWindow(this); 1700 } 1701 Dialog.checkShouldBeBlocked(this); 1702 updateChildrenBlocking(); 1703 */ 1704 } 1705 1706 /** 1707 * Returns the modal exclusion type of this window. 1708 * 1709 * @return the modal exclusion type of this window 1710 * 1711 * @see java.awt.Dialog.ModalExclusionType 1712 * @see java.awt.Window#setModalExclusionType 1713 * 1714 * @since 1.6 1715 */ 1716 public Dialog.ModalExclusionType getModalExclusionType() { 1717 return modalExclusionType; 1718 } 1719 1720 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) { 1721 if ((modalExclusionType != null) && 1722 modalExclusionType.compareTo(exclusionType) >= 0) 1723 { 1724 return true; 1725 } 1726 Window owner = getOwner_NoClientCode(); 1727 return (owner != null) && owner.isModalExcluded(exclusionType); 1728 } 1729 1730 void updateChildrenBlocking() { 1731 Vector<Window> childHierarchy = new Vector<Window>(); 1732 Window[] ownedWindows = getOwnedWindows(); 1733 for (int i = 0; i < ownedWindows.length; i++) { 1734 childHierarchy.add(ownedWindows[i]); 1735 } 1736 int k = 0; 1737 while (k < childHierarchy.size()) { 1738 Window w = childHierarchy.get(k); 1739 if (w.isVisible()) { 1740 if (w.isModalBlocked()) { 1741 Dialog blocker = w.getModalBlocker(); 1742 blocker.unblockWindow(w); 1743 } 1744 Dialog.checkShouldBeBlocked(w); 1745 Window[] wOwned = w.getOwnedWindows(); 1746 for (int j = 0; j < wOwned.length; j++) { 1747 childHierarchy.add(wOwned[j]); 1748 } 1749 } 1750 k++; 1751 } 1752 } 1753 1754 /** 1755 * Adds the specified window listener to receive window events from 1756 * this window. 1757 * If l is null, no exception is thrown and no action is performed. 1758 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1759 * >AWT Threading Issues</a> for details on AWT's threading model. 1760 * 1761 * @param l the window listener 1762 * @see #removeWindowListener 1763 * @see #getWindowListeners 1764 */ 1765 public synchronized void addWindowListener(WindowListener l) { 1766 if (l == null) { 1767 return; 1768 } 1769 newEventsOnly = true; 1770 windowListener = AWTEventMulticaster.add(windowListener, l); 1771 } 1772 1773 /** 1774 * Adds the specified window state listener to receive window 1775 * events from this window. If {@code l} is {@code null}, 1776 * no exception is thrown and no action is performed. 1777 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1778 * >AWT Threading Issues</a> for details on AWT's threading model. 1779 * 1780 * @param l the window state listener 1781 * @see #removeWindowStateListener 1782 * @see #getWindowStateListeners 1783 * @since 1.4 1784 */ 1785 public synchronized void addWindowStateListener(WindowStateListener l) { 1786 if (l == null) { 1787 return; 1788 } 1789 windowStateListener = AWTEventMulticaster.add(windowStateListener, l); 1790 newEventsOnly = true; 1791 } 1792 1793 /** 1794 * Adds the specified window focus listener to receive window events 1795 * from this window. 1796 * If l is null, no exception is thrown and no action is performed. 1797 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1798 * >AWT Threading Issues</a> for details on AWT's threading model. 1799 * 1800 * @param l the window focus listener 1801 * @see #removeWindowFocusListener 1802 * @see #getWindowFocusListeners 1803 * @since 1.4 1804 */ 1805 public synchronized void addWindowFocusListener(WindowFocusListener l) { 1806 if (l == null) { 1807 return; 1808 } 1809 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l); 1810 newEventsOnly = true; 1811 } 1812 1813 /** 1814 * Removes the specified window listener so that it no longer 1815 * receives window events from this window. 1816 * If l is null, no exception is thrown and no action is performed. 1817 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1818 * >AWT Threading Issues</a> for details on AWT's threading model. 1819 * 1820 * @param l the window listener 1821 * @see #addWindowListener 1822 * @see #getWindowListeners 1823 */ 1824 public synchronized void removeWindowListener(WindowListener l) { 1825 if (l == null) { 1826 return; 1827 } 1828 windowListener = AWTEventMulticaster.remove(windowListener, l); 1829 } 1830 1831 /** 1832 * Removes the specified window state listener so that it no 1833 * longer receives window events from this window. If 1834 * {@code l} is {@code null}, no exception is thrown and 1835 * no action is performed. 1836 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1837 * >AWT Threading Issues</a> for details on AWT's threading model. 1838 * 1839 * @param l the window state listener 1840 * @see #addWindowStateListener 1841 * @see #getWindowStateListeners 1842 * @since 1.4 1843 */ 1844 public synchronized void removeWindowStateListener(WindowStateListener l) { 1845 if (l == null) { 1846 return; 1847 } 1848 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l); 1849 } 1850 1851 /** 1852 * Removes the specified window focus listener so that it no longer 1853 * receives window events from this window. 1854 * If l is null, no exception is thrown and no action is performed. 1855 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1856 * >AWT Threading Issues</a> for details on AWT's threading model. 1857 * 1858 * @param l the window focus listener 1859 * @see #addWindowFocusListener 1860 * @see #getWindowFocusListeners 1861 * @since 1.4 1862 */ 1863 public synchronized void removeWindowFocusListener(WindowFocusListener l) { 1864 if (l == null) { 1865 return; 1866 } 1867 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l); 1868 } 1869 1870 /** 1871 * Returns an array of all the window listeners 1872 * registered on this window. 1873 * 1874 * @return all of this window's {@code WindowListener}s 1875 * or an empty array if no window 1876 * listeners are currently registered 1877 * 1878 * @see #addWindowListener 1879 * @see #removeWindowListener 1880 * @since 1.4 1881 */ 1882 public synchronized WindowListener[] getWindowListeners() { 1883 return getListeners(WindowListener.class); 1884 } 1885 1886 /** 1887 * Returns an array of all the window focus listeners 1888 * registered on this window. 1889 * 1890 * @return all of this window's {@code WindowFocusListener}s 1891 * or an empty array if no window focus 1892 * listeners are currently registered 1893 * 1894 * @see #addWindowFocusListener 1895 * @see #removeWindowFocusListener 1896 * @since 1.4 1897 */ 1898 public synchronized WindowFocusListener[] getWindowFocusListeners() { 1899 return getListeners(WindowFocusListener.class); 1900 } 1901 1902 /** 1903 * Returns an array of all the window state listeners 1904 * registered on this window. 1905 * 1906 * @return all of this window's {@code WindowStateListener}s 1907 * or an empty array if no window state 1908 * listeners are currently registered 1909 * 1910 * @see #addWindowStateListener 1911 * @see #removeWindowStateListener 1912 * @since 1.4 1913 */ 1914 public synchronized WindowStateListener[] getWindowStateListeners() { 1915 return getListeners(WindowStateListener.class); 1916 } 1917 1918 1919 /** 1920 * Returns an array of all the objects currently registered 1921 * as <code><em>Foo</em>Listener</code>s 1922 * upon this {@code Window}. 1923 * <code><em>Foo</em>Listener</code>s are registered using the 1924 * <code>add<em>Foo</em>Listener</code> method. 1925 * 1926 * <p> 1927 * 1928 * You can specify the {@code listenerType} argument 1929 * with a class literal, such as 1930 * <code><em>Foo</em>Listener.class</code>. 1931 * For example, you can query a 1932 * {@code Window} {@code w} 1933 * for its window listeners with the following code: 1934 * 1935 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre> 1936 * 1937 * If no such listeners exist, this method returns an empty array. 1938 * 1939 * @param listenerType the type of listeners requested; this parameter 1940 * should specify an interface that descends from 1941 * {@code java.util.EventListener} 1942 * @return an array of all objects registered as 1943 * <code><em>Foo</em>Listener</code>s on this window, 1944 * or an empty array if no such 1945 * listeners have been added 1946 * @exception ClassCastException if {@code listenerType} 1947 * doesn't specify a class or interface that implements 1948 * {@code java.util.EventListener} 1949 * @exception NullPointerException if {@code listenerType} is {@code null} 1950 * 1951 * @see #getWindowListeners 1952 * @since 1.3 1953 */ 1954 public <T extends EventListener> T[] getListeners(Class<T> listenerType) { 1955 EventListener l = null; 1956 if (listenerType == WindowFocusListener.class) { 1957 l = windowFocusListener; 1958 } else if (listenerType == WindowStateListener.class) { 1959 l = windowStateListener; 1960 } else if (listenerType == WindowListener.class) { 1961 l = windowListener; 1962 } else { 1963 return super.getListeners(listenerType); 1964 } 1965 return AWTEventMulticaster.getListeners(l, listenerType); 1966 } 1967 1968 // REMIND: remove when filtering is handled at lower level 1969 boolean eventEnabled(AWTEvent e) { 1970 switch(e.id) { 1971 case WindowEvent.WINDOW_OPENED: 1972 case WindowEvent.WINDOW_CLOSING: 1973 case WindowEvent.WINDOW_CLOSED: 1974 case WindowEvent.WINDOW_ICONIFIED: 1975 case WindowEvent.WINDOW_DEICONIFIED: 1976 case WindowEvent.WINDOW_ACTIVATED: 1977 case WindowEvent.WINDOW_DEACTIVATED: 1978 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 || 1979 windowListener != null) { 1980 return true; 1981 } 1982 return false; 1983 case WindowEvent.WINDOW_GAINED_FOCUS: 1984 case WindowEvent.WINDOW_LOST_FOCUS: 1985 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 || 1986 windowFocusListener != null) { 1987 return true; 1988 } 1989 return false; 1990 case WindowEvent.WINDOW_STATE_CHANGED: 1991 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 || 1992 windowStateListener != null) { 1993 return true; 1994 } 1995 return false; 1996 default: 1997 break; 1998 } 1999 return super.eventEnabled(e); 2000 } 2001 2002 /** 2003 * Processes events on this window. If the event is an 2004 * {@code WindowEvent}, it invokes the 2005 * {@code processWindowEvent} method, else it invokes its 2006 * superclass's {@code processEvent}. 2007 * <p>Note that if the event parameter is {@code null} 2008 * the behavior is unspecified and may result in an 2009 * exception. 2010 * 2011 * @param e the event 2012 */ 2013 protected void processEvent(AWTEvent e) { 2014 if (e instanceof WindowEvent) { 2015 switch (e.getID()) { 2016 case WindowEvent.WINDOW_OPENED: 2017 case WindowEvent.WINDOW_CLOSING: 2018 case WindowEvent.WINDOW_CLOSED: 2019 case WindowEvent.WINDOW_ICONIFIED: 2020 case WindowEvent.WINDOW_DEICONIFIED: 2021 case WindowEvent.WINDOW_ACTIVATED: 2022 case WindowEvent.WINDOW_DEACTIVATED: 2023 processWindowEvent((WindowEvent)e); 2024 break; 2025 case WindowEvent.WINDOW_GAINED_FOCUS: 2026 case WindowEvent.WINDOW_LOST_FOCUS: 2027 processWindowFocusEvent((WindowEvent)e); 2028 break; 2029 case WindowEvent.WINDOW_STATE_CHANGED: 2030 processWindowStateEvent((WindowEvent)e); 2031 break; 2032 } 2033 return; 2034 } 2035 super.processEvent(e); 2036 } 2037 2038 /** 2039 * Processes window events occurring on this window by 2040 * dispatching them to any registered WindowListener objects. 2041 * NOTE: This method will not be called unless window events 2042 * are enabled for this component; this happens when one of the 2043 * following occurs: 2044 * <ul> 2045 * <li>A WindowListener object is registered via 2046 * {@code addWindowListener} 2047 * <li>Window events are enabled via {@code enableEvents} 2048 * </ul> 2049 * <p>Note that if the event parameter is {@code null} 2050 * the behavior is unspecified and may result in an 2051 * exception. 2052 * 2053 * @param e the window event 2054 * @see Component#enableEvents 2055 */ 2056 protected void processWindowEvent(WindowEvent e) { 2057 WindowListener listener = windowListener; 2058 if (listener != null) { 2059 switch(e.getID()) { 2060 case WindowEvent.WINDOW_OPENED: 2061 listener.windowOpened(e); 2062 break; 2063 case WindowEvent.WINDOW_CLOSING: 2064 listener.windowClosing(e); 2065 break; 2066 case WindowEvent.WINDOW_CLOSED: 2067 listener.windowClosed(e); 2068 break; 2069 case WindowEvent.WINDOW_ICONIFIED: 2070 listener.windowIconified(e); 2071 break; 2072 case WindowEvent.WINDOW_DEICONIFIED: 2073 listener.windowDeiconified(e); 2074 break; 2075 case WindowEvent.WINDOW_ACTIVATED: 2076 listener.windowActivated(e); 2077 break; 2078 case WindowEvent.WINDOW_DEACTIVATED: 2079 listener.windowDeactivated(e); 2080 break; 2081 default: 2082 break; 2083 } 2084 } 2085 } 2086 2087 /** 2088 * Processes window focus event occurring on this window by 2089 * dispatching them to any registered WindowFocusListener objects. 2090 * NOTE: this method will not be called unless window focus events 2091 * are enabled for this window. This happens when one of the 2092 * following occurs: 2093 * <ul> 2094 * <li>a WindowFocusListener is registered via 2095 * {@code addWindowFocusListener} 2096 * <li>Window focus events are enabled via {@code enableEvents} 2097 * </ul> 2098 * <p>Note that if the event parameter is {@code null} 2099 * the behavior is unspecified and may result in an 2100 * exception. 2101 * 2102 * @param e the window focus event 2103 * @see Component#enableEvents 2104 * @since 1.4 2105 */ 2106 protected void processWindowFocusEvent(WindowEvent e) { 2107 WindowFocusListener listener = windowFocusListener; 2108 if (listener != null) { 2109 switch (e.getID()) { 2110 case WindowEvent.WINDOW_GAINED_FOCUS: 2111 listener.windowGainedFocus(e); 2112 break; 2113 case WindowEvent.WINDOW_LOST_FOCUS: 2114 listener.windowLostFocus(e); 2115 break; 2116 default: 2117 break; 2118 } 2119 } 2120 } 2121 2122 /** 2123 * Processes window state event occurring on this window by 2124 * dispatching them to any registered {@code WindowStateListener} 2125 * objects. 2126 * NOTE: this method will not be called unless window state events 2127 * are enabled for this window. This happens when one of the 2128 * following occurs: 2129 * <ul> 2130 * <li>a {@code WindowStateListener} is registered via 2131 * {@code addWindowStateListener} 2132 * <li>window state events are enabled via {@code enableEvents} 2133 * </ul> 2134 * <p>Note that if the event parameter is {@code null} 2135 * the behavior is unspecified and may result in an 2136 * exception. 2137 * 2138 * @param e the window state event 2139 * @see java.awt.Component#enableEvents 2140 * @since 1.4 2141 */ 2142 protected void processWindowStateEvent(WindowEvent e) { 2143 WindowStateListener listener = windowStateListener; 2144 if (listener != null) { 2145 switch (e.getID()) { 2146 case WindowEvent.WINDOW_STATE_CHANGED: 2147 listener.windowStateChanged(e); 2148 break; 2149 default: 2150 break; 2151 } 2152 } 2153 } 2154 2155 /** 2156 * Implements a debugging hook -- checks to see if 2157 * the user has typed <i>control-shift-F1</i>. If so, 2158 * the list of child windows is dumped to {@code System.out}. 2159 * @param e the keyboard event 2160 */ 2161 void preProcessKeyEvent(KeyEvent e) { 2162 // Dump the list of child windows to System.out if debug is enabled. 2163 if (DebugSettings.getInstance().getBoolean("on", false)) { 2164 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 && 2165 e.isControlDown() && e.isShiftDown() && 2166 e.getID() == KeyEvent.KEY_PRESSED) { 2167 list(System.out, 0); 2168 } 2169 } 2170 } 2171 2172 void postProcessKeyEvent(KeyEvent e) { 2173 // Do nothing 2174 } 2175 2176 2177 /** 2178 * Sets whether this window should always be above other windows. If 2179 * there are multiple always-on-top windows, their relative order is 2180 * unspecified and platform dependent. 2181 * <p> 2182 * If some other window is already always-on-top then the 2183 * relative order between these windows is unspecified (depends on 2184 * platform). No window can be brought to be over the always-on-top 2185 * window except maybe another always-on-top window. 2186 * <p> 2187 * All windows owned by an always-on-top window inherit this state and 2188 * automatically become always-on-top. If a window ceases to be 2189 * always-on-top, the windows that it owns will no longer be 2190 * always-on-top. When an always-on-top window is sent {@link #toBack 2191 * toBack}, its always-on-top state is set to {@code false}. 2192 * 2193 * <p> When this method is called on a window with a value of 2194 * {@code true}, and the window is visible and the platform 2195 * supports always-on-top for this window, the window is immediately 2196 * brought forward, "sticking" it in the top-most position. If the 2197 * window isn`t currently visible, this method sets the always-on-top 2198 * state to {@code true} but does not bring the window forward. 2199 * When the window is later shown, it will be always-on-top. 2200 * 2201 * <p> When this method is called on a window with a value of 2202 * {@code false} the always-on-top state is set to normal. It may also 2203 * cause an unspecified, platform-dependent change in the z-order of 2204 * top-level windows, but other always-on-top windows will remain in 2205 * top-most position. Calling this method with a value of {@code false} 2206 * on a window that has a normal state has no effect. 2207 * 2208 * <p><b>Note</b>: some platforms might not support always-on-top 2209 * windows. To detect if always-on-top windows are supported by the 2210 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and 2211 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode 2212 * isn't supported for this window or this window's toolkit does not 2213 * support always-on-top windows, calling this method has no effect. 2214 * <p> 2215 * If a SecurityManager is installed, the calling thread must be 2216 * granted the AWTPermission "setWindowAlwaysOnTop" in 2217 * order to set the value of this property. If this 2218 * permission is not granted, this method will throw a 2219 * SecurityException, and the current value of the property will 2220 * be left unchanged. 2221 * 2222 * @param alwaysOnTop true if the window should always be above other 2223 * windows 2224 * @throws SecurityException if the calling thread does not have 2225 * permission to set the value of always-on-top property 2226 * 2227 * @see #isAlwaysOnTop 2228 * @see #toFront 2229 * @see #toBack 2230 * @see AWTPermission 2231 * @see #isAlwaysOnTopSupported 2232 * @see #getToolkit 2233 * @see Toolkit#isAlwaysOnTopSupported 2234 * @since 1.5 2235 */ 2236 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException { 2237 SecurityManager security = System.getSecurityManager(); 2238 if (security != null) { 2239 security.checkPermission(AWTPermissions.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION); 2240 } 2241 2242 boolean oldAlwaysOnTop; 2243 synchronized(this) { 2244 oldAlwaysOnTop = this.alwaysOnTop; 2245 this.alwaysOnTop = alwaysOnTop; 2246 } 2247 if (oldAlwaysOnTop != alwaysOnTop ) { 2248 if (isAlwaysOnTopSupported()) { 2249 WindowPeer peer = (WindowPeer)this.peer; 2250 synchronized(getTreeLock()) { 2251 if (peer != null) { 2252 peer.updateAlwaysOnTopState(); 2253 } 2254 } 2255 } 2256 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop); 2257 } 2258 setOwnedWindowsAlwaysOnTop(alwaysOnTop); 2259 } 2260 2261 @SuppressWarnings({"rawtypes", "unchecked"}) 2262 private void setOwnedWindowsAlwaysOnTop(boolean alwaysOnTop) { 2263 WeakReference<Window>[] ownedWindowArray; 2264 synchronized (ownedWindowList) { 2265 ownedWindowArray = new WeakReference[ownedWindowList.size()]; 2266 ownedWindowList.copyInto(ownedWindowArray); 2267 } 2268 2269 for (WeakReference<Window> ref : ownedWindowArray) { 2270 Window window = ref.get(); 2271 if (window != null) { 2272 try { 2273 window.setAlwaysOnTop(alwaysOnTop); 2274 } catch (SecurityException ignore) { 2275 } 2276 } 2277 } 2278 } 2279 2280 /** 2281 * Returns whether the always-on-top mode is supported for this 2282 * window. Some platforms may not support always-on-top windows, some 2283 * may support only some kinds of top-level windows; for example, 2284 * a platform may not support always-on-top modal dialogs. 2285 * 2286 * @return {@code true}, if the always-on-top mode is supported for 2287 * this window and this window's toolkit supports always-on-top windows, 2288 * {@code false} otherwise 2289 * 2290 * @see #setAlwaysOnTop(boolean) 2291 * @see #getToolkit 2292 * @see Toolkit#isAlwaysOnTopSupported 2293 * @since 1.6 2294 */ 2295 public boolean isAlwaysOnTopSupported() { 2296 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported(); 2297 } 2298 2299 2300 /** 2301 * Returns whether this window is an always-on-top window. 2302 * @return {@code true}, if the window is in always-on-top state, 2303 * {@code false} otherwise 2304 * @see #setAlwaysOnTop 2305 * @since 1.5 2306 */ 2307 public final boolean isAlwaysOnTop() { 2308 return alwaysOnTop; 2309 } 2310 2311 2312 /** 2313 * Returns the child Component of this Window that has focus if this Window 2314 * is focused; returns null otherwise. 2315 * 2316 * @return the child Component with focus, or null if this Window is not 2317 * focused 2318 * @see #getMostRecentFocusOwner 2319 * @see #isFocused 2320 */ 2321 public Component getFocusOwner() { 2322 return (isFocused()) 2323 ? KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2324 getFocusOwner() 2325 : null; 2326 } 2327 2328 /** 2329 * Returns the child Component of this Window that will receive the focus 2330 * when this Window is focused. If this Window is currently focused, this 2331 * method returns the same Component as {@code getFocusOwner()}. If 2332 * this Window is not focused, then the child Component that most recently 2333 * requested focus will be returned. If no child Component has ever 2334 * requested focus, and this is a focusable Window, then this Window's 2335 * initial focusable Component is returned. If no child Component has ever 2336 * requested focus, and this is a non-focusable Window, null is returned. 2337 * 2338 * @return the child Component that will receive focus when this Window is 2339 * focused 2340 * @see #getFocusOwner 2341 * @see #isFocused 2342 * @see #isFocusableWindow 2343 * @since 1.4 2344 */ 2345 public Component getMostRecentFocusOwner() { 2346 if (isFocused()) { 2347 return getFocusOwner(); 2348 } else { 2349 Component mostRecent = 2350 KeyboardFocusManager.getMostRecentFocusOwner(this); 2351 if (mostRecent != null) { 2352 return mostRecent; 2353 } else { 2354 return (isFocusableWindow()) 2355 ? getFocusTraversalPolicy().getInitialComponent(this) 2356 : null; 2357 } 2358 } 2359 } 2360 2361 /** 2362 * Returns whether this Window is active. Only a Frame or a Dialog may be 2363 * active. The native windowing system may denote the active Window or its 2364 * children with special decorations, such as a highlighted title bar. The 2365 * active Window is always either the focused Window, or the first Frame or 2366 * Dialog that is an owner of the focused Window. 2367 * 2368 * @return whether this is the active Window. 2369 * @see #isFocused 2370 * @since 1.4 2371 */ 2372 public boolean isActive() { 2373 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2374 getActiveWindow() == this); 2375 } 2376 2377 /** 2378 * Returns whether this Window is focused. If there exists a focus owner, 2379 * the focused Window is the Window that is, or contains, that focus owner. 2380 * If there is no focus owner, then no Window is focused. 2381 * <p> 2382 * If the focused Window is a Frame or a Dialog it is also the active 2383 * Window. Otherwise, the active Window is the first Frame or Dialog that 2384 * is an owner of the focused Window. 2385 * 2386 * @return whether this is the focused Window. 2387 * @see #isActive 2388 * @since 1.4 2389 */ 2390 public boolean isFocused() { 2391 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2392 getGlobalFocusedWindow() == this); 2393 } 2394 2395 /** 2396 * Gets a focus traversal key for this Window. (See {@code 2397 * setFocusTraversalKeys} for a full description of each key.) 2398 * <p> 2399 * If the traversal key has not been explicitly set for this Window, 2400 * then this Window's parent's traversal key is returned. If the 2401 * traversal key has not been explicitly set for any of this Window's 2402 * ancestors, then the current KeyboardFocusManager's default traversal key 2403 * is returned. 2404 * 2405 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2406 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2407 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2408 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2409 * @return the AWTKeyStroke for the specified key 2410 * @see Container#setFocusTraversalKeys 2411 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS 2412 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS 2413 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS 2414 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS 2415 * @throws IllegalArgumentException if id is not one of 2416 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2417 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2418 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2419 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2420 * @since 1.4 2421 */ 2422 @SuppressWarnings("unchecked") 2423 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) { 2424 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) { 2425 throw new IllegalArgumentException("invalid focus traversal key identifier"); 2426 } 2427 2428 // Okay to return Set directly because it is an unmodifiable view 2429 @SuppressWarnings("rawtypes") 2430 Set keystrokes = (focusTraversalKeys != null) 2431 ? focusTraversalKeys[id] 2432 : null; 2433 2434 if (keystrokes != null) { 2435 return keystrokes; 2436 } else { 2437 return KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2438 getDefaultFocusTraversalKeys(id); 2439 } 2440 } 2441 2442 /** 2443 * Does nothing because Windows must always be roots of a focus traversal 2444 * cycle. The passed-in value is ignored. 2445 * 2446 * @param focusCycleRoot this value is ignored 2447 * @see #isFocusCycleRoot 2448 * @see Container#setFocusTraversalPolicy 2449 * @see Container#getFocusTraversalPolicy 2450 * @since 1.4 2451 */ 2452 public final void setFocusCycleRoot(boolean focusCycleRoot) { 2453 } 2454 2455 /** 2456 * Always returns {@code true} because all Windows must be roots of a 2457 * focus traversal cycle. 2458 * 2459 * @return {@code true} 2460 * @see #setFocusCycleRoot 2461 * @see Container#setFocusTraversalPolicy 2462 * @see Container#getFocusTraversalPolicy 2463 * @since 1.4 2464 */ 2465 public final boolean isFocusCycleRoot() { 2466 return true; 2467 } 2468 2469 /** 2470 * Always returns {@code null} because Windows have no ancestors; they 2471 * represent the top of the Component hierarchy. 2472 * 2473 * @return {@code null} 2474 * @see Container#isFocusCycleRoot() 2475 * @since 1.4 2476 */ 2477 public final Container getFocusCycleRootAncestor() { 2478 return null; 2479 } 2480 2481 /** 2482 * Returns whether this Window can become the focused Window, that is, 2483 * whether this Window or any of its subcomponents can become the focus 2484 * owner. For a Frame or Dialog to be focusable, its focusable Window state 2485 * must be set to {@code true}. For a Window which is not a Frame or 2486 * Dialog to be focusable, its focusable Window state must be set to 2487 * {@code true}, its nearest owning Frame or Dialog must be 2488 * showing on the screen, and it must contain at least one Component in 2489 * its focus traversal cycle. If any of these conditions is not met, then 2490 * neither this Window nor any of its subcomponents can become the focus 2491 * owner. 2492 * 2493 * @return {@code true} if this Window can be the focused Window; 2494 * {@code false} otherwise 2495 * @see #getFocusableWindowState 2496 * @see #setFocusableWindowState 2497 * @see #isShowing 2498 * @see Component#isFocusable 2499 * @since 1.4 2500 */ 2501 public final boolean isFocusableWindow() { 2502 // If a Window/Frame/Dialog was made non-focusable, then it is always 2503 // non-focusable. 2504 if (!getFocusableWindowState()) { 2505 return false; 2506 } 2507 2508 // All other tests apply only to Windows. 2509 if (this instanceof Frame || this instanceof Dialog) { 2510 return true; 2511 } 2512 2513 // A Window must have at least one Component in its root focus 2514 // traversal cycle to be focusable. 2515 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) { 2516 return false; 2517 } 2518 2519 // A Window's nearest owning Frame or Dialog must be showing on the 2520 // screen. 2521 for (Window owner = getOwner(); owner != null; 2522 owner = owner.getOwner()) 2523 { 2524 if (owner instanceof Frame || owner instanceof Dialog) { 2525 return owner.isShowing(); 2526 } 2527 } 2528 2529 return false; 2530 } 2531 2532 /** 2533 * Returns whether this Window can become the focused Window if it meets 2534 * the other requirements outlined in {@code isFocusableWindow}. If 2535 * this method returns {@code false}, then 2536 * {@code isFocusableWindow} will return {@code false} as well. 2537 * If this method returns {@code true}, then 2538 * {@code isFocusableWindow} may return {@code true} or 2539 * {@code false} depending upon the other requirements which must be 2540 * met in order for a Window to be focusable. 2541 * <p> 2542 * By default, all Windows have a focusable Window state of 2543 * {@code true}. 2544 * 2545 * @return whether this Window can be the focused Window 2546 * @see #isFocusableWindow 2547 * @see #setFocusableWindowState 2548 * @see #isShowing 2549 * @see Component#setFocusable 2550 * @since 1.4 2551 */ 2552 public boolean getFocusableWindowState() { 2553 return focusableWindowState; 2554 } 2555 2556 /** 2557 * Sets whether this Window can become the focused Window if it meets 2558 * the other requirements outlined in {@code isFocusableWindow}. If 2559 * this Window's focusable Window state is set to {@code false}, then 2560 * {@code isFocusableWindow} will return {@code false}. If this 2561 * Window's focusable Window state is set to {@code true}, then 2562 * {@code isFocusableWindow} may return {@code true} or 2563 * {@code false} depending upon the other requirements which must be 2564 * met in order for a Window to be focusable. 2565 * <p> 2566 * Setting a Window's focusability state to {@code false} is the 2567 * standard mechanism for an application to identify to the AWT a Window 2568 * which will be used as a floating palette or toolbar, and thus should be 2569 * a non-focusable Window. 2570 * 2571 * Setting the focusability state on a visible {@code Window} 2572 * can have a delayed effect on some platforms — the actual 2573 * change may happen only when the {@code Window} becomes 2574 * hidden and then visible again. To ensure consistent behavior 2575 * across platforms, set the {@code Window}'s focusable state 2576 * when the {@code Window} is invisible and then show it. 2577 * 2578 * @param focusableWindowState whether this Window can be the focused 2579 * Window 2580 * @see #isFocusableWindow 2581 * @see #getFocusableWindowState 2582 * @see #isShowing 2583 * @see Component#setFocusable 2584 * @since 1.4 2585 */ 2586 public void setFocusableWindowState(boolean focusableWindowState) { 2587 boolean oldFocusableWindowState; 2588 synchronized (this) { 2589 oldFocusableWindowState = this.focusableWindowState; 2590 this.focusableWindowState = focusableWindowState; 2591 } 2592 WindowPeer peer = (WindowPeer)this.peer; 2593 if (peer != null) { 2594 peer.updateFocusableWindowState(); 2595 } 2596 firePropertyChange("focusableWindowState", oldFocusableWindowState, 2597 focusableWindowState); 2598 if (oldFocusableWindowState && !focusableWindowState && isFocused()) { 2599 for (Window owner = getOwner(); 2600 owner != null; 2601 owner = owner.getOwner()) 2602 { 2603 Component toFocus = 2604 KeyboardFocusManager.getMostRecentFocusOwner(owner); 2605 if (toFocus != null && toFocus.requestFocus(false, FocusEvent.Cause.ACTIVATION)) { 2606 return; 2607 } 2608 } 2609 KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2610 clearGlobalFocusOwnerPriv(); 2611 } 2612 } 2613 2614 /** 2615 * Sets whether this window should receive focus on 2616 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}), 2617 * or being moved to the front (with a call to {@link #toFront}). 2618 * <p> 2619 * Note that {@link #setVisible setVisible(true)} may be called indirectly 2620 * (e.g. when showing an owner of the window makes the window to be shown). 2621 * {@link #toFront} may also be called indirectly (e.g. when 2622 * {@link #setVisible setVisible(true)} is called on already visible window). 2623 * In all such cases this property takes effect as well. 2624 * <p> 2625 * The value of the property is not inherited by owned windows. 2626 * 2627 * @param autoRequestFocus whether this window should be focused on 2628 * subsequently being shown or being moved to the front 2629 * @see #isAutoRequestFocus 2630 * @see #isFocusableWindow 2631 * @see #setVisible 2632 * @see #toFront 2633 * @since 1.7 2634 */ 2635 public void setAutoRequestFocus(boolean autoRequestFocus) { 2636 this.autoRequestFocus = autoRequestFocus; 2637 } 2638 2639 /** 2640 * Returns whether this window should receive focus on subsequently being shown 2641 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front 2642 * (with a call to {@link #toFront}). 2643 * <p> 2644 * By default, the window has {@code autoRequestFocus} value of {@code true}. 2645 * 2646 * @return {@code autoRequestFocus} value 2647 * @see #setAutoRequestFocus 2648 * @since 1.7 2649 */ 2650 public boolean isAutoRequestFocus() { 2651 return autoRequestFocus; 2652 } 2653 2654 /** 2655 * Adds a PropertyChangeListener to the listener list. The listener is 2656 * registered for all bound properties of this class, including the 2657 * following: 2658 * <ul> 2659 * <li>this Window's font ("font")</li> 2660 * <li>this Window's background color ("background")</li> 2661 * <li>this Window's foreground color ("foreground")</li> 2662 * <li>this Window's focusability ("focusable")</li> 2663 * <li>this Window's focus traversal keys enabled state 2664 * ("focusTraversalKeysEnabled")</li> 2665 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2666 * ("forwardFocusTraversalKeys")</li> 2667 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2668 * ("backwardFocusTraversalKeys")</li> 2669 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2670 * ("upCycleFocusTraversalKeys")</li> 2671 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2672 * ("downCycleFocusTraversalKeys")</li> 2673 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2674 * </li> 2675 * <li>this Window's focusable Window state ("focusableWindowState") 2676 * </li> 2677 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2678 * </ul> 2679 * Note that if this Window is inheriting a bound property, then no 2680 * event will be fired in response to a change in the inherited property. 2681 * <p> 2682 * If listener is null, no exception is thrown and no action is performed. 2683 * 2684 * @param listener the PropertyChangeListener to be added 2685 * 2686 * @see Component#removePropertyChangeListener 2687 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener) 2688 */ 2689 public void addPropertyChangeListener(PropertyChangeListener listener) { 2690 super.addPropertyChangeListener(listener); 2691 } 2692 2693 /** 2694 * Adds a PropertyChangeListener to the listener list for a specific 2695 * property. The specified property may be user-defined, or one of the 2696 * following: 2697 * <ul> 2698 * <li>this Window's font ("font")</li> 2699 * <li>this Window's background color ("background")</li> 2700 * <li>this Window's foreground color ("foreground")</li> 2701 * <li>this Window's focusability ("focusable")</li> 2702 * <li>this Window's focus traversal keys enabled state 2703 * ("focusTraversalKeysEnabled")</li> 2704 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2705 * ("forwardFocusTraversalKeys")</li> 2706 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2707 * ("backwardFocusTraversalKeys")</li> 2708 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2709 * ("upCycleFocusTraversalKeys")</li> 2710 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2711 * ("downCycleFocusTraversalKeys")</li> 2712 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2713 * </li> 2714 * <li>this Window's focusable Window state ("focusableWindowState") 2715 * </li> 2716 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2717 * </ul> 2718 * Note that if this Window is inheriting a bound property, then no 2719 * event will be fired in response to a change in the inherited property. 2720 * <p> 2721 * If listener is null, no exception is thrown and no action is performed. 2722 * 2723 * @param propertyName one of the property names listed above 2724 * @param listener the PropertyChangeListener to be added 2725 * 2726 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener) 2727 * @see Component#removePropertyChangeListener 2728 */ 2729 public void addPropertyChangeListener(String propertyName, 2730 PropertyChangeListener listener) { 2731 super.addPropertyChangeListener(propertyName, listener); 2732 } 2733 2734 /** 2735 * Indicates if this container is a validate root. 2736 * <p> 2737 * {@code Window} objects are the validate roots, and, therefore, they 2738 * override this method to return {@code true}. 2739 * 2740 * @return {@code true} 2741 * @since 1.7 2742 * @see java.awt.Container#isValidateRoot 2743 */ 2744 @Override 2745 public boolean isValidateRoot() { 2746 return true; 2747 } 2748 2749 /** 2750 * Dispatches an event to this window or one of its sub components. 2751 * @param e the event 2752 */ 2753 void dispatchEventImpl(AWTEvent e) { 2754 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) { 2755 invalidate(); 2756 validate(); 2757 } 2758 super.dispatchEventImpl(e); 2759 } 2760 2761 /** 2762 * @deprecated As of JDK version 1.1 2763 * replaced by {@code dispatchEvent(AWTEvent)}. 2764 */ 2765 @Deprecated 2766 public boolean postEvent(Event e) { 2767 if (handleEvent(e)) { 2768 e.consume(); 2769 return true; 2770 } 2771 return false; 2772 } 2773 2774 /** 2775 * Checks if this Window is showing on screen. 2776 * @see Component#setVisible 2777 */ 2778 public boolean isShowing() { 2779 return visible; 2780 } 2781 2782 boolean isDisposing() { 2783 return disposing; 2784 } 2785 2786 /** 2787 * @deprecated As of J2SE 1.4, replaced by 2788 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2789 * @param rb the resource bundle 2790 */ 2791 @Deprecated 2792 public void applyResourceBundle(ResourceBundle rb) { 2793 applyComponentOrientation(ComponentOrientation.getOrientation(rb)); 2794 } 2795 2796 /** 2797 * @deprecated As of J2SE 1.4, replaced by 2798 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2799 * @param rbName the resource name 2800 */ 2801 @Deprecated 2802 public void applyResourceBundle(String rbName) { 2803 applyResourceBundle(ResourceBundle.getBundle(rbName)); 2804 } 2805 2806 /* 2807 * Support for tracking all windows owned by this window 2808 */ 2809 void addOwnedWindow(WeakReference<Window> weakWindow) { 2810 if (weakWindow != null) { 2811 synchronized(ownedWindowList) { 2812 // this if statement should really be an assert, but we don't 2813 // have asserts... 2814 if (!ownedWindowList.contains(weakWindow)) { 2815 ownedWindowList.addElement(weakWindow); 2816 } 2817 } 2818 } 2819 } 2820 2821 void removeOwnedWindow(WeakReference<Window> weakWindow) { 2822 if (weakWindow != null) { 2823 // synchronized block not required since removeElement is 2824 // already synchronized 2825 ownedWindowList.removeElement(weakWindow); 2826 } 2827 } 2828 2829 void connectOwnedWindow(Window child) { 2830 child.parent = this; 2831 addOwnedWindow(child.weakThis); 2832 child.disposerRecord.updateOwner(); 2833 } 2834 2835 private void addToWindowList() { 2836 synchronized (Window.class) { 2837 @SuppressWarnings("unchecked") 2838 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2839 if (windowList == null) { 2840 windowList = new Vector<WeakReference<Window>>(); 2841 appContext.put(Window.class, windowList); 2842 } 2843 windowList.add(weakThis); 2844 } 2845 } 2846 2847 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) { 2848 synchronized (Window.class) { 2849 @SuppressWarnings("unchecked") 2850 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2851 if (windowList != null) { 2852 windowList.remove(weakThis); 2853 } 2854 } 2855 } 2856 2857 private void removeFromWindowList() { 2858 removeFromWindowList(appContext, weakThis); 2859 } 2860 2861 /** 2862 * Window type. 2863 * 2864 * Synchronization: ObjectLock 2865 */ 2866 private Type type = Type.NORMAL; 2867 2868 /** 2869 * Sets the type of the window. 2870 * 2871 * This method can only be called while the window is not displayable. 2872 * 2873 * @param type the window type 2874 * @throws IllegalComponentStateException if the window 2875 * is displayable. 2876 * @throws IllegalArgumentException if the type is {@code null} 2877 * @see Component#isDisplayable 2878 * @see #getType 2879 * @since 1.7 2880 */ 2881 public void setType(Type type) { 2882 if (type == null) { 2883 throw new IllegalArgumentException("type should not be null."); 2884 } 2885 synchronized (getTreeLock()) { 2886 if (isDisplayable()) { 2887 throw new IllegalComponentStateException( 2888 "The window is displayable."); 2889 } 2890 synchronized (getObjectLock()) { 2891 this.type = type; 2892 } 2893 } 2894 } 2895 2896 /** 2897 * Returns the type of the window. 2898 * 2899 * @return the type of the window 2900 * @see #setType 2901 * @since 1.7 2902 */ 2903 public Type getType() { 2904 synchronized (getObjectLock()) { 2905 return type; 2906 } 2907 } 2908 2909 /** 2910 * The window serialized data version. 2911 * 2912 * @serial 2913 */ 2914 private int windowSerializedDataVersion = 2; 2915 2916 /** 2917 * Writes default serializable fields to stream. Writes 2918 * a list of serializable {@code WindowListener}s and 2919 * {@code WindowFocusListener}s as optional data. 2920 * Writes a list of child windows as optional data. 2921 * Writes a list of icon images as optional data 2922 * 2923 * @param s the {@code ObjectOutputStream} to write 2924 * @serialData {@code null} terminated sequence of 2925 * 0 or more pairs; the pair consists of a {@code String} 2926 * and {@code Object}; the {@code String} 2927 * indicates the type of object and is one of the following: 2928 * {@code windowListenerK} indicating a 2929 * {@code WindowListener} object; 2930 * {@code windowFocusWindowK} indicating a 2931 * {@code WindowFocusListener} object; 2932 * {@code ownedWindowK} indicating a child 2933 * {@code Window} object 2934 * 2935 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2936 * @see Component#windowListenerK 2937 * @see Component#windowFocusListenerK 2938 * @see Component#ownedWindowK 2939 * @see #readObject(ObjectInputStream) 2940 */ 2941 private void writeObject(ObjectOutputStream s) throws IOException { 2942 synchronized (this) { 2943 // Update old focusMgr fields so that our object stream can be read 2944 // by previous releases 2945 focusMgr = new FocusManager(); 2946 focusMgr.focusRoot = this; 2947 focusMgr.focusOwner = getMostRecentFocusOwner(); 2948 2949 s.defaultWriteObject(); 2950 2951 // Clear fields so that we don't keep extra references around 2952 focusMgr = null; 2953 2954 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2955 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2956 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2957 } 2958 2959 s.writeObject(null); 2960 2961 synchronized (ownedWindowList) { 2962 for (int i = 0; i < ownedWindowList.size(); i++) { 2963 Window child = ownedWindowList.elementAt(i).get(); 2964 if (child != null) { 2965 s.writeObject(ownedWindowK); 2966 s.writeObject(child); 2967 } 2968 } 2969 } 2970 s.writeObject(null); 2971 2972 //write icon array 2973 if (icons != null) { 2974 for (Image i : icons) { 2975 if (i instanceof Serializable) { 2976 s.writeObject(i); 2977 } 2978 } 2979 } 2980 s.writeObject(null); 2981 } 2982 2983 // 2984 // Part of deserialization procedure to be called before 2985 // user's code. 2986 // 2987 private void initDeserializedWindow() { 2988 setWarningString(); 2989 inputContextLock = new Object(); 2990 2991 // Deserialized Windows are not yet visible. 2992 visible = false; 2993 2994 weakThis = new WeakReference<>(this); 2995 2996 anchor = new Object(); 2997 disposerRecord = new WindowDisposerRecord(appContext, this); 2998 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 2999 3000 addToWindowList(); 3001 initGC(null); 3002 ownedWindowList = new Vector<>(); 3003 } 3004 3005 private void deserializeResources(ObjectInputStream s) 3006 throws ClassNotFoundException, IOException, HeadlessException { 3007 3008 if (windowSerializedDataVersion < 2) { 3009 // Translate old-style focus tracking to new model. For 1.4 and 3010 // later releases, we'll rely on the Window's initial focusable 3011 // Component. 3012 if (focusMgr != null) { 3013 if (focusMgr.focusOwner != null) { 3014 KeyboardFocusManager. 3015 setMostRecentFocusOwner(this, focusMgr.focusOwner); 3016 } 3017 } 3018 3019 // This field is non-transient and relies on default serialization. 3020 // However, the default value is insufficient, so we need to set 3021 // it explicitly for object data streams prior to 1.4. 3022 focusableWindowState = true; 3023 3024 3025 } 3026 3027 Object keyOrNull; 3028 while(null != (keyOrNull = s.readObject())) { 3029 String key = ((String)keyOrNull).intern(); 3030 3031 if (windowListenerK == key) { 3032 addWindowListener((WindowListener)(s.readObject())); 3033 } else if (windowFocusListenerK == key) { 3034 addWindowFocusListener((WindowFocusListener)(s.readObject())); 3035 } else if (windowStateListenerK == key) { 3036 addWindowStateListener((WindowStateListener)(s.readObject())); 3037 } else // skip value for unrecognized key 3038 s.readObject(); 3039 } 3040 3041 try { 3042 while (null != (keyOrNull = s.readObject())) { 3043 String key = ((String)keyOrNull).intern(); 3044 3045 if (ownedWindowK == key) 3046 connectOwnedWindow((Window) s.readObject()); 3047 3048 else // skip value for unrecognized key 3049 s.readObject(); 3050 } 3051 3052 //read icons 3053 Object obj = s.readObject(); //Throws OptionalDataException 3054 //for pre1.6 objects. 3055 icons = new ArrayList<Image>(); //Frame.readObject() assumes 3056 //pre1.6 version if icons is null. 3057 while (obj != null) { 3058 if (obj instanceof Image) { 3059 icons.add((Image)obj); 3060 } 3061 obj = s.readObject(); 3062 } 3063 } 3064 catch (OptionalDataException e) { 3065 // 1.1 serialized form 3066 // ownedWindowList will be updated by Frame.readObject 3067 } 3068 3069 } 3070 3071 /** 3072 * Reads the {@code ObjectInputStream} and an optional 3073 * list of listeners to receive various events fired by 3074 * the component; also reads a list of 3075 * (possibly {@code null}) child windows. 3076 * Unrecognized keys or values will be ignored. 3077 * 3078 * @param s the {@code ObjectInputStream} to read 3079 * @exception HeadlessException if 3080 * {@code GraphicsEnvironment.isHeadless} returns 3081 * {@code true} 3082 * @see java.awt.GraphicsEnvironment#isHeadless 3083 * @see #writeObject 3084 */ 3085 private void readObject(ObjectInputStream s) 3086 throws ClassNotFoundException, IOException, HeadlessException 3087 { 3088 GraphicsEnvironment.checkHeadless(); 3089 initDeserializedWindow(); 3090 ObjectInputStream.GetField f = s.readFields(); 3091 3092 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3093 state = f.get("state", 0); 3094 focusableWindowState = f.get("focusableWindowState", true); 3095 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3096 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3097 // Note: 1.4 (or later) doesn't use focusMgr 3098 focusMgr = (FocusManager)f.get("focusMgr", null); 3099 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3100 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3101 setModalExclusionType(et); // since 6.0 3102 boolean aot = f.get("alwaysOnTop", false); 3103 if(aot) { 3104 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3105 } 3106 shape = (Shape)f.get("shape", null); 3107 opacity = (Float)f.get("opacity", 1.0f); 3108 3109 this.securityWarningWidth = 0; 3110 this.securityWarningHeight = 0; 3111 this.securityWarningPointX = 2.0; 3112 this.securityWarningPointY = 0.0; 3113 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3114 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3115 3116 deserializeResources(s); 3117 } 3118 3119 /* 3120 * --- Accessibility Support --- 3121 * 3122 */ 3123 3124 /** 3125 * Gets the AccessibleContext associated with this Window. 3126 * For windows, the AccessibleContext takes the form of an 3127 * AccessibleAWTWindow. 3128 * A new AccessibleAWTWindow instance is created if necessary. 3129 * 3130 * @return an AccessibleAWTWindow that serves as the 3131 * AccessibleContext of this Window 3132 * @since 1.3 3133 */ 3134 public AccessibleContext getAccessibleContext() { 3135 if (accessibleContext == null) { 3136 accessibleContext = new AccessibleAWTWindow(); 3137 } 3138 return accessibleContext; 3139 } 3140 3141 /** 3142 * This class implements accessibility support for the 3143 * {@code Window} class. It provides an implementation of the 3144 * Java Accessibility API appropriate to window user-interface elements. 3145 * @since 1.3 3146 */ 3147 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3148 { 3149 /* 3150 * JDK 1.3 serialVersionUID 3151 */ 3152 private static final long serialVersionUID = 4215068635060671780L; 3153 3154 /** 3155 * Get the role of this object. 3156 * 3157 * @return an instance of AccessibleRole describing the role of the 3158 * object 3159 * @see javax.accessibility.AccessibleRole 3160 */ 3161 public AccessibleRole getAccessibleRole() { 3162 return AccessibleRole.WINDOW; 3163 } 3164 3165 /** 3166 * Get the state of this object. 3167 * 3168 * @return an instance of AccessibleStateSet containing the current 3169 * state set of the object 3170 * @see javax.accessibility.AccessibleState 3171 */ 3172 public AccessibleStateSet getAccessibleStateSet() { 3173 AccessibleStateSet states = super.getAccessibleStateSet(); 3174 if (getFocusOwner() != null) { 3175 states.add(AccessibleState.ACTIVE); 3176 } 3177 return states; 3178 } 3179 3180 } // inner class AccessibleAWTWindow 3181 3182 @Override 3183 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3184 if (gc == null) { 3185 gc = GraphicsEnvironment. 3186 getLocalGraphicsEnvironment(). 3187 getDefaultScreenDevice(). 3188 getDefaultConfiguration(); 3189 } 3190 synchronized (getTreeLock()) { 3191 super.setGraphicsConfiguration(gc); 3192 if (log.isLoggable(PlatformLogger.Level.FINER)) { 3193 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3194 } 3195 } 3196 } 3197 3198 /** 3199 * Sets the location of the window relative to the specified 3200 * component according to the following scenarios. 3201 * <p> 3202 * The target screen mentioned below is a screen to which 3203 * the window should be placed after the setLocationRelativeTo 3204 * method is called. 3205 * <ul> 3206 * <li>If the component is {@code null}, or the {@code 3207 * GraphicsConfiguration} associated with this component is 3208 * {@code null}, the window is placed in the center of the 3209 * screen. The center point can be obtained with the {@link 3210 * GraphicsEnvironment#getCenterPoint 3211 * GraphicsEnvironment.getCenterPoint} method. 3212 * <li>If the component is not {@code null}, but it is not 3213 * currently showing, the window is placed in the center of 3214 * the target screen defined by the {@code 3215 * GraphicsConfiguration} associated with this component. 3216 * <li>If the component is not {@code null} and is shown on 3217 * the screen, then the window is located in such a way that 3218 * the center of the window coincides with the center of the 3219 * component. 3220 * </ul> 3221 * <p> 3222 * If the screens configuration does not allow the window to 3223 * be moved from one screen to another, then the window is 3224 * only placed at the location determined according to the 3225 * above conditions and its {@code GraphicsConfiguration} is 3226 * not changed. 3227 * <p> 3228 * <b>Note</b>: If the lower edge of the window is out of the screen, 3229 * then the window is placed to the side of the {@code Component} 3230 * that is closest to the center of the screen. So if the 3231 * component is on the right part of the screen, the window 3232 * is placed to its left, and vice versa. 3233 * <p> 3234 * If after the window location has been calculated, the upper, 3235 * left, or right edge of the window is out of the screen, 3236 * then the window is located in such a way that the upper, 3237 * left, or right edge of the window coincides with the 3238 * corresponding edge of the screen. If both left and right 3239 * edges of the window are out of the screen, the window is 3240 * placed at the left side of the screen. The similar placement 3241 * will occur if both top and bottom edges are out of the screen. 3242 * In that case, the window is placed at the top side of the screen. 3243 * <p> 3244 * The method changes the geometry-related data. Therefore, 3245 * the native windowing system may ignore such requests, or it may modify 3246 * the requested data, so that the {@code Window} object is placed and sized 3247 * in a way that corresponds closely to the desktop settings. 3248 * 3249 * @param c the component in relation to which the window's location 3250 * is determined 3251 * @see java.awt.GraphicsEnvironment#getCenterPoint 3252 * @since 1.4 3253 */ 3254 public void setLocationRelativeTo(Component c) { 3255 // target location 3256 int dx = 0, dy = 0; 3257 // target GC 3258 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3259 Rectangle gcBounds = gc.getBounds(); 3260 3261 Dimension windowSize = getSize(); 3262 3263 // search a top-level of c 3264 Window componentWindow = SunToolkit.getContainingWindow(c); 3265 if ((c == null) || (componentWindow == null)) { 3266 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3267 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3268 gcBounds = gc.getBounds(); 3269 Point centerPoint = ge.getCenterPoint(); 3270 dx = centerPoint.x - windowSize.width / 2; 3271 dy = centerPoint.y - windowSize.height / 2; 3272 } else if (!c.isShowing()) { 3273 gc = componentWindow.getGraphicsConfiguration(); 3274 gcBounds = gc.getBounds(); 3275 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3276 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3277 } else { 3278 gc = componentWindow.getGraphicsConfiguration(); 3279 gcBounds = gc.getBounds(); 3280 Dimension compSize = c.getSize(); 3281 Point compLocation = c.getLocationOnScreen(); 3282 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3283 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3284 3285 // Adjust for bottom edge being offscreen 3286 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3287 dy = gcBounds.y + gcBounds.height - windowSize.height; 3288 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3289 dx = compLocation.x + compSize.width; 3290 } else { 3291 dx = compLocation.x - windowSize.width; 3292 } 3293 } 3294 } 3295 3296 // Avoid being placed off the edge of the screen: 3297 // bottom 3298 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3299 dy = gcBounds.y + gcBounds.height - windowSize.height; 3300 } 3301 // top 3302 if (dy < gcBounds.y) { 3303 dy = gcBounds.y; 3304 } 3305 // right 3306 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3307 dx = gcBounds.x + gcBounds.width - windowSize.width; 3308 } 3309 // left 3310 if (dx < gcBounds.x) { 3311 dx = gcBounds.x; 3312 } 3313 3314 setLocation(dx, dy); 3315 } 3316 3317 /** 3318 * Overridden from Component. Top-level Windows should not propagate a 3319 * MouseWheelEvent beyond themselves into their owning Windows. 3320 */ 3321 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3322 3323 /** 3324 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3325 */ 3326 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3327 3328 /** 3329 * Creates a new strategy for multi-buffering on this component. 3330 * Multi-buffering is useful for rendering performance. This method 3331 * attempts to create the best strategy available with the number of 3332 * buffers supplied. It will always create a {@code BufferStrategy} 3333 * with that number of buffers. 3334 * A page-flipping strategy is attempted first, then a blitting strategy 3335 * using accelerated buffers. Finally, an unaccelerated blitting 3336 * strategy is used. 3337 * <p> 3338 * Each time this method is called, 3339 * the existing buffer strategy for this component is discarded. 3340 * @param numBuffers number of buffers to create 3341 * @exception IllegalArgumentException if numBuffers is less than 1. 3342 * @exception IllegalStateException if the component is not displayable 3343 * @see #isDisplayable 3344 * @see #getBufferStrategy 3345 * @since 1.4 3346 */ 3347 public void createBufferStrategy(int numBuffers) { 3348 super.createBufferStrategy(numBuffers); 3349 } 3350 3351 /** 3352 * Creates a new strategy for multi-buffering on this component with the 3353 * required buffer capabilities. This is useful, for example, if only 3354 * accelerated memory or page flipping is desired (as specified by the 3355 * buffer capabilities). 3356 * <p> 3357 * Each time this method 3358 * is called, the existing buffer strategy for this component is discarded. 3359 * @param numBuffers number of buffers to create, including the front buffer 3360 * @param caps the required capabilities for creating the buffer strategy; 3361 * cannot be {@code null} 3362 * @exception AWTException if the capabilities supplied could not be 3363 * supported or met; this may happen, for example, if there is not enough 3364 * accelerated memory currently available, or if page flipping is specified 3365 * but not possible. 3366 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3367 * caps is {@code null} 3368 * @see #getBufferStrategy 3369 * @since 1.4 3370 */ 3371 public void createBufferStrategy(int numBuffers, 3372 BufferCapabilities caps) throws AWTException { 3373 super.createBufferStrategy(numBuffers, caps); 3374 } 3375 3376 /** 3377 * Returns the {@code BufferStrategy} used by this component. This 3378 * method will return null if a {@code BufferStrategy} has not yet 3379 * been created or has been disposed. 3380 * 3381 * @return the buffer strategy used by this component 3382 * @see #createBufferStrategy 3383 * @since 1.4 3384 */ 3385 public BufferStrategy getBufferStrategy() { 3386 return super.getBufferStrategy(); 3387 } 3388 3389 Component getTemporaryLostComponent() { 3390 return temporaryLostComponent; 3391 } 3392 Component setTemporaryLostComponent(Component component) { 3393 Component previousComp = temporaryLostComponent; 3394 // Check that "component" is an acceptable focus owner and don't store it otherwise 3395 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3396 if (component == null || component.canBeFocusOwner()) { 3397 temporaryLostComponent = component; 3398 } else { 3399 temporaryLostComponent = null; 3400 } 3401 return previousComp; 3402 } 3403 3404 /** 3405 * Checks whether this window can contain focus owner. 3406 * Verifies that it is focusable and as container it can container focus owner. 3407 * @since 1.5 3408 */ 3409 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3410 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3411 } 3412 3413 private boolean locationByPlatform = locationByPlatformProp; 3414 3415 3416 /** 3417 * Sets whether this Window should appear at the default location for the 3418 * native windowing system or at the current location (returned by 3419 * {@code getLocation}) the next time the Window is made visible. 3420 * This behavior resembles a native window shown without programmatically 3421 * setting its location. Most windowing systems cascade windows if their 3422 * locations are not explicitly set. The actual location is determined once the 3423 * window is shown on the screen. 3424 * <p> 3425 * This behavior can also be enabled by setting the System Property 3426 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3427 * take precedence. 3428 * <p> 3429 * Calls to {@code setVisible}, {@code setLocation} and 3430 * {@code setBounds} after calling {@code setLocationByPlatform} clear 3431 * this property of the Window. 3432 * <p> 3433 * For example, after the following code is executed: 3434 * <pre> 3435 * setLocationByPlatform(true); 3436 * setVisible(true); 3437 * boolean flag = isLocationByPlatform(); 3438 * </pre> 3439 * The window will be shown at platform's default location and 3440 * {@code flag} will be {@code false}. 3441 * <p> 3442 * In the following sample: 3443 * <pre> 3444 * setLocationByPlatform(true); 3445 * setLocation(10, 10); 3446 * boolean flag = isLocationByPlatform(); 3447 * setVisible(true); 3448 * </pre> 3449 * The window will be shown at (10, 10) and {@code flag} will be 3450 * {@code false}. 3451 * 3452 * @param locationByPlatform {@code true} if this Window should appear 3453 * at the default location, {@code false} if at the current location 3454 * @throws IllegalComponentStateException if the window 3455 * is showing on screen and locationByPlatform is {@code true}. 3456 * @see #setLocation 3457 * @see #isShowing 3458 * @see #setVisible 3459 * @see #isLocationByPlatform 3460 * @see java.lang.System#getProperty(String) 3461 * @since 1.5 3462 */ 3463 public void setLocationByPlatform(boolean locationByPlatform) { 3464 synchronized (getTreeLock()) { 3465 if (locationByPlatform && isShowing()) { 3466 throw new IllegalComponentStateException("The window is showing on screen."); 3467 } 3468 this.locationByPlatform = locationByPlatform; 3469 } 3470 } 3471 3472 /** 3473 * Returns {@code true} if this Window will appear at the default location 3474 * for the native windowing system the next time this Window is made visible. 3475 * This method always returns {@code false} if the Window is showing on the 3476 * screen. 3477 * 3478 * @return whether this Window will appear at the default location 3479 * @see #setLocationByPlatform 3480 * @see #isShowing 3481 * @since 1.5 3482 */ 3483 public boolean isLocationByPlatform() { 3484 synchronized (getTreeLock()) { 3485 return locationByPlatform; 3486 } 3487 } 3488 3489 /** 3490 * {@inheritDoc} 3491 * <p> 3492 * The {@code width} or {@code height} values 3493 * are automatically enlarged if either is less than 3494 * the minimum size as specified by previous call to 3495 * {@code setMinimumSize}. 3496 * <p> 3497 * The method changes the geometry-related data. Therefore, 3498 * the native windowing system may ignore such requests, or it may modify 3499 * the requested data, so that the {@code Window} object is placed and sized 3500 * in a way that corresponds closely to the desktop settings. 3501 * 3502 * @see #getBounds 3503 * @see #setLocation(int, int) 3504 * @see #setLocation(Point) 3505 * @see #setSize(int, int) 3506 * @see #setSize(Dimension) 3507 * @see #setMinimumSize 3508 * @see #setLocationByPlatform 3509 * @see #isLocationByPlatform 3510 * @since 1.6 3511 */ 3512 public void setBounds(int x, int y, int width, int height) { 3513 synchronized (getTreeLock()) { 3514 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3515 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3516 { 3517 locationByPlatform = false; 3518 } 3519 super.setBounds(x, y, width, height); 3520 } 3521 } 3522 3523 /** 3524 * {@inheritDoc} 3525 * <p> 3526 * The {@code r.width} or {@code r.height} values 3527 * will be automatically enlarged if either is less than 3528 * the minimum size as specified by previous call to 3529 * {@code setMinimumSize}. 3530 * <p> 3531 * The method changes the geometry-related data. Therefore, 3532 * the native windowing system may ignore such requests, or it may modify 3533 * the requested data, so that the {@code Window} object is placed and sized 3534 * in a way that corresponds closely to the desktop settings. 3535 * 3536 * @see #getBounds 3537 * @see #setLocation(int, int) 3538 * @see #setLocation(Point) 3539 * @see #setSize(int, int) 3540 * @see #setSize(Dimension) 3541 * @see #setMinimumSize 3542 * @see #setLocationByPlatform 3543 * @see #isLocationByPlatform 3544 * @since 1.6 3545 */ 3546 public void setBounds(Rectangle r) { 3547 setBounds(r.x, r.y, r.width, r.height); 3548 } 3549 3550 /** 3551 * Determines whether this component will be displayed on the screen. 3552 * @return {@code true} if the component and all of its ancestors 3553 * until a toplevel window are visible, {@code false} otherwise 3554 */ 3555 boolean isRecursivelyVisible() { 3556 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3557 // We're overriding isRecursivelyVisible to implement this policy. 3558 return visible; 3559 } 3560 3561 3562 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3563 3564 /** 3565 * Returns the opacity of the window. 3566 * 3567 * @return the opacity of the window 3568 * 3569 * @see Window#setOpacity(float) 3570 * @see GraphicsDevice.WindowTranslucency 3571 * 3572 * @since 1.7 3573 */ 3574 public float getOpacity() { 3575 synchronized (getTreeLock()) { 3576 return opacity; 3577 } 3578 } 3579 3580 /** 3581 * Sets the opacity of the window. 3582 * <p> 3583 * The opacity value is in the range [0..1]. Note that setting the opacity 3584 * level of 0 may or may not disable the mouse event handling on this 3585 * window. This is a platform-dependent behavior. 3586 * <p> 3587 * The following conditions must be met in order to set the opacity value 3588 * less than {@code 1.0f}: 3589 * <ul> 3590 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3591 * translucency must be supported by the underlying system 3592 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3593 * and {@link Dialog#setUndecorated}) 3594 * <li>The window must not be in full-screen mode (see {@link 3595 * GraphicsDevice#setFullScreenWindow(Window)}) 3596 * </ul> 3597 * <p> 3598 * If the requested opacity value is less than {@code 1.0f}, and any of the 3599 * above conditions are not met, the window opacity will not change, 3600 * and the {@code IllegalComponentStateException} will be thrown. 3601 * <p> 3602 * The translucency levels of individual pixels may also be effected by the 3603 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3604 * current shape of this window (see {@link #setShape(Shape)}). 3605 * 3606 * @param opacity the opacity level to set to the window 3607 * 3608 * @throws IllegalArgumentException if the opacity is out of the range 3609 * [0..1] 3610 * @throws IllegalComponentStateException if the window is decorated and 3611 * the opacity is less than {@code 1.0f} 3612 * @throws IllegalComponentStateException if the window is in full screen 3613 * mode, and the opacity is less than {@code 1.0f} 3614 * @throws UnsupportedOperationException if the {@code 3615 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3616 * translucency is not supported and the opacity is less than 3617 * {@code 1.0f} 3618 * 3619 * @see Window#getOpacity 3620 * @see Window#setBackground(Color) 3621 * @see Window#setShape(Shape) 3622 * @see Frame#isUndecorated 3623 * @see Dialog#isUndecorated 3624 * @see GraphicsDevice.WindowTranslucency 3625 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3626 * 3627 * @since 1.7 3628 */ 3629 @SuppressWarnings("deprecation") 3630 public void setOpacity(float opacity) { 3631 synchronized (getTreeLock()) { 3632 if (opacity < 0.0f || opacity > 1.0f) { 3633 throw new IllegalArgumentException( 3634 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3635 } 3636 if (opacity < 1.0f) { 3637 GraphicsConfiguration gc = getGraphicsConfiguration(); 3638 GraphicsDevice gd = gc.getDevice(); 3639 if (gc.getDevice().getFullScreenWindow() == this) { 3640 throw new IllegalComponentStateException( 3641 "Setting opacity for full-screen window is not supported."); 3642 } 3643 if (!gd.isWindowTranslucencySupported( 3644 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3645 { 3646 throw new UnsupportedOperationException( 3647 "TRANSLUCENT translucency is not supported."); 3648 } 3649 } 3650 this.opacity = opacity; 3651 WindowPeer peer = (WindowPeer) this.peer; 3652 if (peer != null) { 3653 peer.setOpacity(opacity); 3654 } 3655 } 3656 } 3657 3658 /** 3659 * Returns the shape of the window. 3660 * 3661 * The value returned by this method may not be the same as 3662 * previously set with {@code setShape(shape)}, but it is guaranteed 3663 * to represent the same shape. 3664 * 3665 * @return the shape of the window or {@code null} if no 3666 * shape is specified for the window 3667 * 3668 * @see Window#setShape(Shape) 3669 * @see GraphicsDevice.WindowTranslucency 3670 * 3671 * @since 1.7 3672 */ 3673 public Shape getShape() { 3674 synchronized (getTreeLock()) { 3675 return shape == null ? null : new Path2D.Float(shape); 3676 } 3677 } 3678 3679 /** 3680 * Sets the shape of the window. 3681 * <p> 3682 * Setting a shape cuts off some parts of the window. Only the parts that 3683 * belong to the given {@link Shape} remain visible and clickable. If 3684 * the shape argument is {@code null}, this method restores the default 3685 * shape, making the window rectangular on most platforms. 3686 * <p> 3687 * The following conditions must be met to set a non-null shape: 3688 * <ul> 3689 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3690 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3691 * underlying system 3692 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3693 * and {@link Dialog#setUndecorated}) 3694 * <li>The window must not be in full-screen mode (see {@link 3695 * GraphicsDevice#setFullScreenWindow(Window)}) 3696 * </ul> 3697 * <p> 3698 * If the requested shape is not {@code null}, and any of the above 3699 * conditions are not met, the shape of this window will not change, 3700 * and either the {@code UnsupportedOperationException} or {@code 3701 * IllegalComponentStateException} will be thrown. 3702 * <p> 3703 * The translucency levels of individual pixels may also be effected by the 3704 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3705 * opacity value (see {@link #setOpacity(float)}). See {@link 3706 * GraphicsDevice.WindowTranslucency} for more details. 3707 * 3708 * @param shape the shape to set to the window 3709 * 3710 * @throws IllegalComponentStateException if the shape is not {@code 3711 * null} and the window is decorated 3712 * @throws IllegalComponentStateException if the shape is not {@code 3713 * null} and the window is in full-screen mode 3714 * @throws UnsupportedOperationException if the shape is not {@code 3715 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3716 * PERPIXEL_TRANSPARENT} translucency is not supported 3717 * 3718 * @see Window#getShape() 3719 * @see Window#setBackground(Color) 3720 * @see Window#setOpacity(float) 3721 * @see Frame#isUndecorated 3722 * @see Dialog#isUndecorated 3723 * @see GraphicsDevice.WindowTranslucency 3724 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3725 * 3726 * @since 1.7 3727 */ 3728 public void setShape(Shape shape) { 3729 synchronized (getTreeLock()) { 3730 if (shape != null) { 3731 GraphicsConfiguration gc = getGraphicsConfiguration(); 3732 GraphicsDevice gd = gc.getDevice(); 3733 if (gc.getDevice().getFullScreenWindow() == this) { 3734 throw new IllegalComponentStateException( 3735 "Setting shape for full-screen window is not supported."); 3736 } 3737 if (!gd.isWindowTranslucencySupported( 3738 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3739 { 3740 throw new UnsupportedOperationException( 3741 "PERPIXEL_TRANSPARENT translucency is not supported."); 3742 } 3743 } 3744 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3745 WindowPeer peer = (WindowPeer) this.peer; 3746 if (peer != null) { 3747 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3748 } 3749 } 3750 } 3751 3752 /** 3753 * Gets the background color of this window. 3754 * <p> 3755 * Note that the alpha component of the returned color indicates whether 3756 * the window is in the non-opaque (per-pixel translucent) mode. 3757 * 3758 * @return this component's background color 3759 * 3760 * @see Window#setBackground(Color) 3761 * @see Window#isOpaque 3762 * @see GraphicsDevice.WindowTranslucency 3763 */ 3764 @Override 3765 public Color getBackground() { 3766 return super.getBackground(); 3767 } 3768 3769 /** 3770 * Sets the background color of this window. 3771 * <p> 3772 * If the windowing system supports the {@link 3773 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3774 * translucency, the alpha component of the given background color 3775 * may effect the mode of operation for this window: it indicates whether 3776 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3777 * (alpha is less than {@code 1.0f}). If the given background color is 3778 * {@code null}, the window is considered completely opaque. 3779 * <p> 3780 * All the following conditions must be met to enable the per-pixel 3781 * transparency mode for this window: 3782 * <ul> 3783 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3784 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3785 * device where this window is located 3786 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3787 * and {@link Dialog#setUndecorated}) 3788 * <li>The window must not be in full-screen mode (see {@link 3789 * GraphicsDevice#setFullScreenWindow(Window)}) 3790 * </ul> 3791 * <p> 3792 * If the alpha component of the requested background color is less than 3793 * {@code 1.0f}, and any of the above conditions are not met, the background 3794 * color of this window will not change, the alpha component of the given 3795 * background color will not affect the mode of operation for this window, 3796 * and either the {@code UnsupportedOperationException} or {@code 3797 * IllegalComponentStateException} will be thrown. 3798 * <p> 3799 * When the window is per-pixel translucent, the drawing sub-system 3800 * respects the alpha value of each individual pixel. If a pixel gets 3801 * painted with the alpha color component equal to zero, it becomes 3802 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3803 * pixel is fully opaque. Interim values of the alpha color component make 3804 * the pixel semi-transparent. In this mode, the background of the window 3805 * gets painted with the alpha value of the given background color. If the 3806 * alpha value of the argument of this method is equal to {@code 0}, the 3807 * background is not painted at all. 3808 * <p> 3809 * The actual level of translucency of a given pixel also depends on window 3810 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3811 * this window (see {@link #setShape(Shape)}). 3812 * <p> 3813 * Note that painting a pixel with the alpha value of {@code 0} may or may 3814 * not disable the mouse event handling on this pixel. This is a 3815 * platform-dependent behavior. To make sure the mouse events do not get 3816 * dispatched to a particular pixel, the pixel must be excluded from the 3817 * shape of the window. 3818 * <p> 3819 * Enabling the per-pixel translucency mode may change the graphics 3820 * configuration of this window due to the native platform requirements. 3821 * 3822 * @param bgColor the color to become this window's background color. 3823 * 3824 * @throws IllegalComponentStateException if the alpha value of the given 3825 * background color is less than {@code 1.0f} and the window is decorated 3826 * @throws IllegalComponentStateException if the alpha value of the given 3827 * background color is less than {@code 1.0f} and the window is in 3828 * full-screen mode 3829 * @throws UnsupportedOperationException if the alpha value of the given 3830 * background color is less than {@code 1.0f} and {@link 3831 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3832 * PERPIXEL_TRANSLUCENT} translucency is not supported 3833 * 3834 * @see Window#getBackground 3835 * @see Window#isOpaque 3836 * @see Window#setOpacity(float) 3837 * @see Window#setShape(Shape) 3838 * @see Frame#isUndecorated 3839 * @see Dialog#isUndecorated 3840 * @see GraphicsDevice.WindowTranslucency 3841 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3842 * @see GraphicsConfiguration#isTranslucencyCapable() 3843 */ 3844 @Override 3845 public void setBackground(Color bgColor) { 3846 Color oldBg = getBackground(); 3847 super.setBackground(bgColor); 3848 if (oldBg != null && oldBg.equals(bgColor)) { 3849 return; 3850 } 3851 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3852 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3853 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3854 GraphicsConfiguration gc = getGraphicsConfiguration(); 3855 GraphicsDevice gd = gc.getDevice(); 3856 if (gc.getDevice().getFullScreenWindow() == this) { 3857 throw new IllegalComponentStateException( 3858 "Making full-screen window non opaque is not supported."); 3859 } 3860 if (!gc.isTranslucencyCapable()) { 3861 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3862 if (capableGC == null) { 3863 throw new UnsupportedOperationException( 3864 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3865 } 3866 setGraphicsConfiguration(capableGC); 3867 } 3868 setLayersOpaque(this, false); 3869 } else if ((oldAlpha < 255) && (alpha == 255)) { 3870 setLayersOpaque(this, true); 3871 } 3872 WindowPeer peer = (WindowPeer) this.peer; 3873 if (peer != null) { 3874 peer.setOpaque(alpha == 255); 3875 } 3876 } 3877 3878 /** 3879 * Indicates if the window is currently opaque. 3880 * <p> 3881 * The method returns {@code false} if the background color of the window 3882 * is not {@code null} and the alpha component of the color is less than 3883 * {@code 1.0f}. The method returns {@code true} otherwise. 3884 * 3885 * @return {@code true} if the window is opaque, {@code false} otherwise 3886 * 3887 * @see Window#getBackground 3888 * @see Window#setBackground(Color) 3889 * @since 1.7 3890 */ 3891 @Override 3892 public boolean isOpaque() { 3893 Color bg = getBackground(); 3894 return bg != null ? bg.getAlpha() == 255 : true; 3895 } 3896 3897 private void updateWindow() { 3898 synchronized (getTreeLock()) { 3899 WindowPeer peer = (WindowPeer) this.peer; 3900 if (peer != null) { 3901 peer.updateWindow(); 3902 } 3903 } 3904 } 3905 3906 /** 3907 * {@inheritDoc} 3908 * 3909 * @since 1.7 3910 */ 3911 @Override 3912 public void paint(Graphics g) { 3913 if (!isOpaque()) { 3914 Graphics gg = g.create(); 3915 try { 3916 if (gg instanceof Graphics2D) { 3917 gg.setColor(getBackground()); 3918 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3919 gg.fillRect(0, 0, getWidth(), getHeight()); 3920 } 3921 } finally { 3922 gg.dispose(); 3923 } 3924 } 3925 super.paint(g); 3926 } 3927 3928 private static void setLayersOpaque(Component component, boolean isOpaque) { 3929 // Shouldn't use instanceof to avoid loading Swing classes 3930 // if it's a pure AWT application. 3931 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3932 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3933 javax.swing.JRootPane root = rpc.getRootPane(); 3934 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3935 Container c = root.getContentPane(); 3936 javax.swing.JComponent content = 3937 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3938 lp.setOpaque(isOpaque); 3939 root.setOpaque(isOpaque); 3940 if (content != null) { 3941 content.setOpaque(isOpaque); 3942 3943 // Iterate down one level to see whether we have a JApplet 3944 // (which is also a RootPaneContainer) which requires processing 3945 int numChildren = content.getComponentCount(); 3946 if (numChildren > 0) { 3947 Component child = content.getComponent(0); 3948 // It's OK to use instanceof here because we've 3949 // already loaded the RootPaneContainer class by now 3950 if (child instanceof javax.swing.RootPaneContainer) { 3951 setLayersOpaque(child, isOpaque); 3952 } 3953 } 3954 } 3955 } 3956 } 3957 3958 3959 // ************************** MIXING CODE ******************************* 3960 3961 // A window has an owner, but it does NOT have a container 3962 @Override 3963 final Container getContainer() { 3964 return null; 3965 } 3966 3967 /** 3968 * Applies the shape to the component 3969 * @param shape Shape to be applied to the component 3970 */ 3971 @Override 3972 final void applyCompoundShape(Region shape) { 3973 // The shape calculated by mixing code is not intended to be applied 3974 // to windows or frames 3975 } 3976 3977 @Override 3978 final void applyCurrentShape() { 3979 // The shape calculated by mixing code is not intended to be applied 3980 // to windows or frames 3981 } 3982 3983 @Override 3984 final void mixOnReshaping() { 3985 // The shape calculated by mixing code is not intended to be applied 3986 // to windows or frames 3987 } 3988 3989 @Override 3990 final Point getLocationOnWindow() { 3991 return new Point(0, 0); 3992 } 3993 3994 // ****************** END OF MIXING CODE ******************************** 3995 3996 /** 3997 * Limit the given double value with the given range. 3998 */ 3999 private static double limit(double value, double min, double max) { 4000 value = Math.max(value, min); 4001 value = Math.min(value, max); 4002 return value; 4003 } 4004 4005 /** 4006 * Calculate the position of the security warning. 4007 * 4008 * This method gets the window location/size as reported by the native 4009 * system since the locally cached values may represent outdated data. 4010 * 4011 * The method is used from the native code, or via AWTAccessor. 4012 * 4013 * NOTE: this method is invoked on the toolkit thread, and therefore is not 4014 * supposed to become public/user-overridable. 4015 */ 4016 private Point2D calculateSecurityWarningPosition(double x, double y, 4017 double w, double h) 4018 { 4019 // The position according to the spec of SecurityWarning.setPosition() 4020 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 4021 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 4022 4023 // First, make sure the warning is not too far from the window bounds 4024 wx = Window.limit(wx, 4025 x - securityWarningWidth - 2, 4026 x + w + 2); 4027 wy = Window.limit(wy, 4028 y - securityWarningHeight - 2, 4029 y + h + 2); 4030 4031 // Now make sure the warning window is visible on the screen 4032 GraphicsConfiguration graphicsConfig = 4033 getGraphicsConfiguration_NoClientCode(); 4034 Rectangle screenBounds = graphicsConfig.getBounds(); 4035 Insets screenInsets = 4036 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 4037 4038 wx = Window.limit(wx, 4039 screenBounds.x + screenInsets.left, 4040 screenBounds.x + screenBounds.width - screenInsets.right 4041 - securityWarningWidth); 4042 wy = Window.limit(wy, 4043 screenBounds.y + screenInsets.top, 4044 screenBounds.y + screenBounds.height - screenInsets.bottom 4045 - securityWarningHeight); 4046 4047 return new Point2D.Double(wx, wy); 4048 } 4049 4050 static { 4051 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 4052 public float getOpacity(Window window) { 4053 return window.opacity; 4054 } 4055 public void setOpacity(Window window, float opacity) { 4056 window.setOpacity(opacity); 4057 } 4058 public Shape getShape(Window window) { 4059 return window.getShape(); 4060 } 4061 public void setShape(Window window, Shape shape) { 4062 window.setShape(shape); 4063 } 4064 public void setOpaque(Window window, boolean opaque) { 4065 Color bg = window.getBackground(); 4066 if (bg == null) { 4067 bg = new Color(0, 0, 0, 0); 4068 } 4069 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4070 opaque ? 255 : 0)); 4071 } 4072 public void updateWindow(Window window) { 4073 window.updateWindow(); 4074 } 4075 4076 public Dimension getSecurityWarningSize(Window window) { 4077 return new Dimension(window.securityWarningWidth, 4078 window.securityWarningHeight); 4079 } 4080 4081 public void setSecurityWarningSize(Window window, int width, int height) 4082 { 4083 window.securityWarningWidth = width; 4084 window.securityWarningHeight = height; 4085 } 4086 4087 public void setSecurityWarningPosition(Window window, 4088 Point2D point, float alignmentX, float alignmentY) 4089 { 4090 window.securityWarningPointX = point.getX(); 4091 window.securityWarningPointY = point.getY(); 4092 window.securityWarningAlignmentX = alignmentX; 4093 window.securityWarningAlignmentY = alignmentY; 4094 4095 synchronized (window.getTreeLock()) { 4096 WindowPeer peer = (WindowPeer) window.peer; 4097 if (peer != null) { 4098 peer.repositionSecurityWarning(); 4099 } 4100 } 4101 } 4102 4103 public Point2D calculateSecurityWarningPosition(Window window, 4104 double x, double y, double w, double h) 4105 { 4106 return window.calculateSecurityWarningPosition(x, y, w, h); 4107 } 4108 4109 public void setLWRequestStatus(Window changed, boolean status) { 4110 changed.syncLWRequests = status; 4111 } 4112 4113 public boolean isAutoRequestFocus(Window w) { 4114 return w.autoRequestFocus; 4115 } 4116 4117 public boolean isTrayIconWindow(Window w) { 4118 return w.isTrayIconWindow; 4119 } 4120 4121 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4122 w.isTrayIconWindow = isTrayIconWindow; 4123 } 4124 }); // WindowAccessor 4125 } // static 4126 4127 // a window doesn't need to be updated in the Z-order. 4128 @Override 4129 void updateZOrder() {} 4130 4131 } // class Window 4132 4133 4134 /** 4135 * This class is no longer used, but is maintained for Serialization 4136 * backward-compatibility. 4137 */ 4138 class FocusManager implements java.io.Serializable { 4139 Container focusRoot; 4140 Component focusOwner; 4141 4142 /* 4143 * JDK 1.1 serialVersionUID 4144 */ 4145 static final long serialVersionUID = 2491878825643557906L; 4146 }