1 /* 2 * Copyright (c) 1995, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.peer.ComponentPeer; 33 import java.awt.peer.WindowPeer; 34 import java.beans.PropertyChangeListener; 35 import java.io.IOException; 36 import java.io.ObjectInputStream; 37 import java.io.ObjectOutputStream; 38 import java.io.OptionalDataException; 39 import java.io.Serializable; 40 import java.lang.ref.WeakReference; 41 import java.lang.reflect.InvocationTargetException; 42 import java.security.AccessController; 43 import java.util.ArrayList; 44 import java.util.Arrays; 45 import java.util.EventListener; 46 import java.util.Locale; 47 import java.util.ResourceBundle; 48 import java.util.Set; 49 import java.util.Vector; 50 import java.util.concurrent.atomic.AtomicBoolean; 51 import javax.accessibility.*; 52 import sun.awt.AWTAccessor; 53 import sun.awt.AWTPermissions; 54 import sun.awt.AppContext; 55 import sun.awt.DebugSettings; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.pipe.Region; 59 import sun.security.action.GetPropertyAction; 60 import sun.util.logging.PlatformLogger; 61 62 /** 63 * A {@code Window} object is a top-level window with no borders and no 64 * menubar. 65 * The default layout for a window is {@code BorderLayout}. 66 * <p> 67 * A window must have either a frame, dialog, or another window defined as its 68 * owner when it's constructed. 69 * <p> 70 * In a multi-screen environment, you can create a {@code Window} 71 * on a different screen device by constructing the {@code Window} 72 * with {@link #Window(Window, GraphicsConfiguration)}. The 73 * {@code GraphicsConfiguration} object is one of the 74 * {@code GraphicsConfiguration} objects of the target screen device. 75 * <p> 76 * In a virtual device multi-screen environment in which the desktop 77 * area could span multiple physical screen devices, the bounds of all 78 * configurations are relative to the virtual device coordinate system. 79 * The origin of the virtual-coordinate system is at the upper left-hand 80 * corner of the primary physical screen. Depending on the location of 81 * the primary screen in the virtual device, negative coordinates are 82 * possible, as shown in the following figure. 83 * <p> 84 * <img src="doc-files/MultiScreen.gif" 85 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 86 * style="float:center; margin: 7px 10px;"> 87 * <p> 88 * In such an environment, when calling {@code setLocation}, 89 * you must pass a virtual coordinate to this method. Similarly, 90 * calling {@code getLocationOnScreen} on a {@code Window} returns 91 * virtual device coordinates. Call the {@code getBounds} method 92 * of a {@code GraphicsConfiguration} to find its origin in the virtual 93 * coordinate system. 94 * <p> 95 * The following code sets the location of a {@code Window} 96 * at (10, 10) relative to the origin of the physical screen 97 * of the corresponding {@code GraphicsConfiguration}. If the 98 * bounds of the {@code GraphicsConfiguration} is not taken 99 * into account, the {@code Window} location would be set 100 * at (10, 10) relative to the virtual-coordinate system and would appear 101 * on the primary physical screen, which might be different from the 102 * physical screen of the specified {@code GraphicsConfiguration}. 103 * 104 * <pre> 105 * Window w = new Window(Window owner, GraphicsConfiguration gc); 106 * Rectangle bounds = gc.getBounds(); 107 * w.setLocation(10 + bounds.x, 10 + bounds.y); 108 * </pre> 109 * 110 * <p> 111 * Note: the location and size of top-level windows (including 112 * {@code Window}s, {@code Frame}s, and {@code Dialog}s) 113 * are under the control of the desktop's window management system. 114 * Calls to {@code setLocation}, {@code setSize}, and 115 * {@code setBounds} are requests (not directives) which are 116 * forwarded to the window management system. Every effort will be 117 * made to honor such requests. However, in some cases the window 118 * management system may ignore such requests, or modify the requested 119 * geometry in order to place and size the {@code Window} in a way 120 * that more closely matches the desktop settings. 121 * <p> 122 * Due to the asynchronous nature of native event handling, the results 123 * returned by {@code getBounds}, {@code getLocation}, 124 * {@code getLocationOnScreen}, and {@code getSize} might not 125 * reflect the actual geometry of the Window on screen until the last 126 * request has been processed. During the processing of subsequent 127 * requests these values might change accordingly while the window 128 * management system fulfills the requests. 129 * <p> 130 * An application may set the size and location of an invisible 131 * {@code Window} arbitrarily, but the window management system may 132 * subsequently change its size and/or location when the 133 * {@code Window} is made visible. One or more {@code ComponentEvent}s 134 * will be generated to indicate the new geometry. 135 * <p> 136 * Windows are capable of generating the following WindowEvents: 137 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 138 * 139 * @author Sami Shaio 140 * @author Arthur van Hoff 141 * @see WindowEvent 142 * @see #addWindowListener 143 * @see java.awt.BorderLayout 144 * @since 1.0 145 */ 146 public class Window extends Container implements Accessible { 147 148 /** 149 * Enumeration of available <i>window types</i>. 150 * 151 * A window type defines the generic visual appearance and behavior of a 152 * top-level window. For example, the type may affect the kind of 153 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 154 * <p> 155 * Some platforms may not fully support a certain window type. Depending on 156 * the level of support, some properties of the window type may be 157 * disobeyed. 158 * 159 * @see #getType 160 * @see #setType 161 * @since 1.7 162 */ 163 public static enum Type { 164 /** 165 * Represents a <i>normal</i> window. 166 * 167 * This is the default type for objects of the {@code Window} class or 168 * its descendants. Use this type for regular top-level windows. 169 */ 170 NORMAL, 171 172 /** 173 * Represents a <i>utility</i> window. 174 * 175 * A utility window is usually a small window such as a toolbar or a 176 * palette. The native system may render the window with smaller 177 * title-bar if the window is either a {@code Frame} or a {@code 178 * Dialog} object, and if it has its decorations enabled. 179 */ 180 UTILITY, 181 182 /** 183 * Represents a <i>popup</i> window. 184 * 185 * A popup window is a temporary window such as a drop-down menu or a 186 * tooltip. On some platforms, windows of that type may be forcibly 187 * made undecorated even if they are instances of the {@code Frame} or 188 * {@code Dialog} class, and have decorations enabled. 189 */ 190 POPUP 191 } 192 193 /** 194 * This represents the warning message that is 195 * to be displayed in a non secure window. ie : 196 * a window that has a security manager installed that denies 197 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 198 * This message can be displayed anywhere in the window. 199 * 200 * @serial 201 * @see #getWarningString 202 */ 203 String warningString; 204 205 /** 206 * {@code icons} is the graphical way we can 207 * represent the frames and dialogs. 208 * {@code Window} can't display icon but it's 209 * being inherited by owned {@code Dialog}s. 210 * 211 * @serial 212 * @see #getIconImages 213 * @see #setIconImages 214 */ 215 transient java.util.List<Image> icons; 216 217 /** 218 * Holds the reference to the component which last had focus in this window 219 * before it lost focus. 220 */ 221 private transient Component temporaryLostComponent; 222 223 static boolean systemSyncLWRequests = false; 224 boolean syncLWRequests = false; 225 transient boolean beforeFirstShow = true; 226 private transient boolean disposing = false; 227 transient WindowDisposerRecord disposerRecord = null; 228 229 static final int OPENED = 0x01; 230 231 /** 232 * An Integer value representing the Window State. 233 * 234 * @serial 235 * @since 1.2 236 * @see #show 237 */ 238 int state; 239 240 /** 241 * A boolean value representing Window always-on-top state 242 * @since 1.5 243 * @serial 244 * @see #setAlwaysOnTop 245 * @see #isAlwaysOnTop 246 */ 247 private boolean alwaysOnTop; 248 249 /** 250 * Contains all the windows that have a peer object associated, 251 * i. e. between addNotify() and removeNotify() calls. The list 252 * of all Window instances can be obtained from AppContext object. 253 * 254 * @since 1.6 255 */ 256 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 257 258 /** 259 * A vector containing all the windows this 260 * window currently owns. 261 * @since 1.2 262 * @see #getOwnedWindows 263 */ 264 transient Vector<WeakReference<Window>> ownedWindowList = 265 new Vector<WeakReference<Window>>(); 266 267 /* 268 * We insert a weak reference into the Vector of all Windows in AppContext 269 * instead of 'this' so that garbage collection can still take place 270 * correctly. 271 */ 272 private transient WeakReference<Window> weakThis; 273 274 transient boolean showWithParent; 275 276 /** 277 * Contains the modal dialog that blocks this window, or null 278 * if the window is unblocked. 279 * 280 * @since 1.6 281 */ 282 transient Dialog modalBlocker; 283 284 /** 285 * @serial 286 * 287 * @see java.awt.Dialog.ModalExclusionType 288 * @see #getModalExclusionType 289 * @see #setModalExclusionType 290 * 291 * @since 1.6 292 */ 293 Dialog.ModalExclusionType modalExclusionType; 294 295 transient WindowListener windowListener; 296 transient WindowStateListener windowStateListener; 297 transient WindowFocusListener windowFocusListener; 298 299 transient InputContext inputContext; 300 private transient Object inputContextLock = new Object(); 301 302 /** 303 * Unused. Maintained for serialization backward-compatibility. 304 * 305 * @serial 306 * @since 1.2 307 */ 308 private FocusManager focusMgr; 309 310 /** 311 * Indicates whether this Window can become the focused Window. 312 * 313 * @serial 314 * @see #getFocusableWindowState 315 * @see #setFocusableWindowState 316 * @since 1.4 317 */ 318 private boolean focusableWindowState = true; 319 320 /** 321 * Indicates whether this window should receive focus on 322 * subsequently being shown (with a call to {@code setVisible(true)}), or 323 * being moved to the front (with a call to {@code toFront()}). 324 * 325 * @serial 326 * @see #setAutoRequestFocus 327 * @see #isAutoRequestFocus 328 * @since 1.7 329 */ 330 private volatile boolean autoRequestFocus = true; 331 332 /* 333 * Indicates that this window is being shown. This flag is set to true at 334 * the beginning of show() and to false at the end of show(). 335 * 336 * @see #show() 337 * @see Dialog#shouldBlock 338 */ 339 transient boolean isInShow = false; 340 341 /** 342 * The opacity level of the window 343 * 344 * @serial 345 * @see #setOpacity(float) 346 * @see #getOpacity() 347 * @since 1.7 348 */ 349 private volatile float opacity = 1.0f; 350 351 /** 352 * The shape assigned to this window. This field is set to {@code null} if 353 * no shape is set (rectangular window). 354 * 355 * @serial 356 * @see #getShape() 357 * @see #setShape(Shape) 358 * @since 1.7 359 */ 360 private Shape shape = null; 361 362 private static final String base = "win"; 363 private static int nameCounter = 0; 364 365 /* 366 * JDK 1.1 serialVersionUID 367 */ 368 private static final long serialVersionUID = 4497834738069338734L; 369 370 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 371 372 private static final boolean locationByPlatformProp; 373 374 transient boolean isTrayIconWindow = false; 375 376 /** 377 * These fields are initialized in the native peer code 378 * or via AWTAccessor's WindowAccessor. 379 */ 380 private transient volatile int securityWarningWidth = 0; 381 private transient volatile int securityWarningHeight = 0; 382 383 /** 384 * These fields represent the desired location for the security 385 * warning if this window is untrusted. 386 * See com.sun.awt.SecurityWarning for more details. 387 */ 388 private transient double securityWarningPointX = 2.0; 389 private transient double securityWarningPointY = 0.0; 390 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 391 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 392 393 static { 394 /* ensure that the necessary native libraries are loaded */ 395 Toolkit.loadLibraries(); 396 if (!GraphicsEnvironment.isHeadless()) { 397 initIDs(); 398 } 399 400 String s = java.security.AccessController.doPrivileged( 401 new GetPropertyAction("java.awt.syncLWRequests")); 402 systemSyncLWRequests = (s != null && s.equals("true")); 403 s = java.security.AccessController.doPrivileged( 404 new GetPropertyAction("java.awt.Window.locationByPlatform")); 405 locationByPlatformProp = (s != null && s.equals("true")); 406 } 407 408 /** 409 * Initialize JNI field and method IDs for fields that may be 410 accessed from C. 411 */ 412 private static native void initIDs(); 413 414 /** 415 * Constructs a new, initially invisible window in default size with the 416 * specified {@code GraphicsConfiguration}. 417 * <p> 418 * If there is a security manager, then it is invoked to check 419 * {@code AWTPermission("showWindowWithoutWarningBanner")} 420 * to determine whether or not the window must be displayed with 421 * a warning banner. 422 * 423 * @param gc the {@code GraphicsConfiguration} of the target screen 424 * device. If {@code gc} is {@code null}, the system default 425 * {@code GraphicsConfiguration} is assumed 426 * @exception IllegalArgumentException if {@code gc} 427 * is not from a screen device 428 * @exception HeadlessException when 429 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 430 * 431 * @see java.awt.GraphicsEnvironment#isHeadless 432 */ 433 Window(GraphicsConfiguration gc) { 434 init(gc); 435 } 436 437 transient Object anchor = new Object(); 438 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 439 WeakReference<Window> owner; 440 final WeakReference<Window> weakThis; 441 final WeakReference<AppContext> context; 442 443 WindowDisposerRecord(AppContext context, Window victim) { 444 weakThis = victim.weakThis; 445 this.context = new WeakReference<AppContext>(context); 446 } 447 448 public void updateOwner() { 449 Window victim = weakThis.get(); 450 owner = (victim == null) 451 ? null 452 : new WeakReference<Window>(victim.getOwner()); 453 } 454 455 public void dispose() { 456 if (owner != null) { 457 Window parent = owner.get(); 458 if (parent != null) { 459 parent.removeOwnedWindow(weakThis); 460 } 461 } 462 AppContext ac = context.get(); 463 if (null != ac) { 464 Window.removeFromWindowList(ac, weakThis); 465 } 466 } 467 } 468 469 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 470 GraphicsEnvironment.checkHeadless(); 471 472 if (gc == null) { 473 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 474 getDefaultScreenDevice().getDefaultConfiguration(); 475 } 476 setGraphicsConfiguration(gc); 477 478 return gc; 479 } 480 481 private void init(GraphicsConfiguration gc) { 482 GraphicsEnvironment.checkHeadless(); 483 484 syncLWRequests = systemSyncLWRequests; 485 486 weakThis = new WeakReference<Window>(this); 487 addToWindowList(); 488 489 setWarningString(); 490 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 491 this.visible = false; 492 493 gc = initGC(gc); 494 495 if (gc.getDevice().getType() != 496 GraphicsDevice.TYPE_RASTER_SCREEN) { 497 throw new IllegalArgumentException("not a screen device"); 498 } 499 setLayout(new BorderLayout()); 500 501 /* offset the initial location with the original of the screen */ 502 /* and any insets */ 503 Rectangle screenBounds = gc.getBounds(); 504 Insets screenInsets = getToolkit().getScreenInsets(gc); 505 int x = getX() + screenBounds.x + screenInsets.left; 506 int y = getY() + screenBounds.y + screenInsets.top; 507 if (x != this.x || y != this.y) { 508 setLocation(x, y); 509 /* reset after setLocation */ 510 setLocationByPlatform(locationByPlatformProp); 511 } 512 513 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 514 disposerRecord = new WindowDisposerRecord(appContext, this); 515 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 516 517 SunToolkit.checkAndSetPolicy(this); 518 } 519 520 /** 521 * Constructs a new, initially invisible window in the default size. 522 * <p> 523 * If there is a security manager set, it is invoked to check 524 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 525 * If that check fails with a {@code SecurityException} then a warning 526 * banner is created. 527 * 528 * @exception HeadlessException when 529 * {@code GraphicsEnvironment.isHeadless()} returns {@code true} 530 * 531 * @see java.awt.GraphicsEnvironment#isHeadless 532 */ 533 Window() throws HeadlessException { 534 GraphicsEnvironment.checkHeadless(); 535 init((GraphicsConfiguration)null); 536 } 537 538 /** 539 * Constructs a new, initially invisible window with the specified 540 * {@code Frame} as its owner. The window will not be focusable 541 * unless its owner is showing on the screen. 542 * <p> 543 * If there is a security manager set, it is invoked to check 544 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 545 * If that check fails with a {@code SecurityException} then a warning 546 * banner is created. 547 * 548 * @param owner the {@code Frame} to act as owner or {@code null} 549 * if this window has no owner 550 * @exception IllegalArgumentException if the {@code owner}'s 551 * {@code GraphicsConfiguration} is not from a screen device 552 * @exception HeadlessException when 553 * {@code GraphicsEnvironment.isHeadless} returns {@code true} 554 * 555 * @see java.awt.GraphicsEnvironment#isHeadless 556 * @see #isShowing 557 */ 558 public Window(Frame owner) { 559 this(owner == null ? (GraphicsConfiguration)null : 560 owner.getGraphicsConfiguration()); 561 ownedInit(owner); 562 } 563 564 /** 565 * Constructs a new, initially invisible window with the specified 566 * {@code Window} as its owner. This window will not be focusable 567 * unless its nearest owning {@code Frame} or {@code Dialog} 568 * is showing on the screen. 569 * <p> 570 * If there is a security manager set, it is invoked to check 571 * {@code AWTPermission("showWindowWithoutWarningBanner")}. 572 * If that check fails with a {@code SecurityException} then a 573 * warning banner is created. 574 * 575 * @param owner the {@code Window} to act as owner or 576 * {@code null} if this window has no owner 577 * @exception IllegalArgumentException if the {@code owner}'s 578 * {@code GraphicsConfiguration} is not from a screen device 579 * @exception HeadlessException when 580 * {@code GraphicsEnvironment.isHeadless()} returns 581 * {@code true} 582 * 583 * @see java.awt.GraphicsEnvironment#isHeadless 584 * @see #isShowing 585 * 586 * @since 1.2 587 */ 588 public Window(Window owner) { 589 this(owner == null ? (GraphicsConfiguration)null : 590 owner.getGraphicsConfiguration()); 591 ownedInit(owner); 592 } 593 594 /** 595 * Constructs a new, initially invisible window with the specified owner 596 * {@code Window} and a {@code GraphicsConfiguration} 597 * of a screen device. The Window will not be focusable unless 598 * its nearest owning {@code Frame} or {@code Dialog} 599 * is showing on the screen. 600 * <p> 601 * If there is a security manager set, it is invoked to check 602 * {@code AWTPermission("showWindowWithoutWarningBanner")}. If that 603 * check fails with a {@code SecurityException} then a warning banner 604 * is created. 605 * 606 * @param owner the window to act as owner or {@code null} 607 * if this window has no owner 608 * @param gc the {@code GraphicsConfiguration} of the target 609 * screen device; if {@code gc} is {@code null}, 610 * the system default {@code GraphicsConfiguration} is assumed 611 * @exception IllegalArgumentException if {@code gc} 612 * is not from a screen device 613 * @exception HeadlessException when 614 * {@code GraphicsEnvironment.isHeadless()} returns 615 * {@code true} 616 * 617 * @see java.awt.GraphicsEnvironment#isHeadless 618 * @see GraphicsConfiguration#getBounds 619 * @see #isShowing 620 * @since 1.3 621 */ 622 public Window(Window owner, GraphicsConfiguration gc) { 623 this(gc); 624 ownedInit(owner); 625 } 626 627 private void ownedInit(Window owner) { 628 this.parent = owner; 629 if (owner != null) { 630 owner.addOwnedWindow(weakThis); 631 if (owner.isAlwaysOnTop()) { 632 try { 633 setAlwaysOnTop(true); 634 } catch (SecurityException ignore) { 635 } 636 } 637 } 638 639 // WindowDisposerRecord requires a proper value of parent field. 640 disposerRecord.updateOwner(); 641 } 642 643 /** 644 * Construct a name for this component. Called by getName() when the 645 * name is null. 646 */ 647 String constructComponentName() { 648 synchronized (Window.class) { 649 return base + nameCounter++; 650 } 651 } 652 653 /** 654 * Returns the sequence of images to be displayed as the icon for this window. 655 * <p> 656 * This method returns a copy of the internally stored list, so all operations 657 * on the returned object will not affect the window's behavior. 658 * 659 * @return the copy of icon images' list for this window, or 660 * empty list if this window doesn't have icon images. 661 * @see #setIconImages 662 * @see #setIconImage(Image) 663 * @since 1.6 664 */ 665 public java.util.List<Image> getIconImages() { 666 java.util.List<Image> icons = this.icons; 667 if (icons == null || icons.size() == 0) { 668 return new ArrayList<Image>(); 669 } 670 return new ArrayList<Image>(icons); 671 } 672 673 /** 674 * Sets the sequence of images to be displayed as the icon 675 * for this window. Subsequent calls to {@code getIconImages} will 676 * always return a copy of the {@code icons} list. 677 * <p> 678 * Depending on the platform capabilities one or several images 679 * of different dimensions will be used as the window's icon. 680 * <p> 681 * The {@code icons} list can contain {@code MultiResolutionImage} images also. 682 * Suitable image depending on screen resolution is extracted from 683 * base {@code MultiResolutionImage} image and added to the icons list 684 * while base resolution image is removed from list. 685 * The {@code icons} list is scanned for the images of most 686 * appropriate dimensions from the beginning. If the list contains 687 * several images of the same size, the first will be used. 688 * <p> 689 * Ownerless windows with no icon specified use platform-default icon. 690 * The icon of an owned window may be inherited from the owner 691 * unless explicitly overridden. 692 * Setting the icon to {@code null} or empty list restores 693 * the default behavior. 694 * <p> 695 * Note : Native windowing systems may use different images of differing 696 * dimensions to represent a window, depending on the context (e.g. 697 * window decoration, window list, taskbar, etc.). They could also use 698 * just a single image for all contexts or no image at all. 699 * 700 * @param icons the list of icon images to be displayed. 701 * @see #getIconImages() 702 * @see #setIconImage(Image) 703 * @since 1.6 704 */ 705 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 706 this.icons = (icons == null) ? new ArrayList<Image>() : 707 new ArrayList<Image>(icons); 708 WindowPeer peer = (WindowPeer)this.peer; 709 if (peer != null) { 710 peer.updateIconImages(); 711 } 712 // Always send a property change event 713 firePropertyChange("iconImage", null, null); 714 } 715 716 /** 717 * Sets the image to be displayed as the icon for this window. 718 * <p> 719 * This method can be used instead of {@link #setIconImages setIconImages()} 720 * to specify a single image as a window's icon. 721 * <p> 722 * The following statement: 723 * <pre> 724 * setIconImage(image); 725 * </pre> 726 * is equivalent to: 727 * <pre> 728 * ArrayList<Image> imageList = new ArrayList<Image>(); 729 * imageList.add(image); 730 * setIconImages(imageList); 731 * </pre> 732 * <p> 733 * Note : Native windowing systems may use different images of differing 734 * dimensions to represent a window, depending on the context (e.g. 735 * window decoration, window list, taskbar, etc.). They could also use 736 * just a single image for all contexts or no image at all. 737 * 738 * @param image the icon image to be displayed. 739 * @see #setIconImages 740 * @see #getIconImages() 741 * @since 1.6 742 */ 743 public void setIconImage(Image image) { 744 ArrayList<Image> imageList = new ArrayList<Image>(); 745 if (image != null) { 746 imageList.add(image); 747 } 748 setIconImages(imageList); 749 } 750 751 /** 752 * Makes this Window displayable by creating the connection to its 753 * native screen resource. 754 * This method is called internally by the toolkit and should 755 * not be called directly by programs. 756 * @see Component#isDisplayable 757 * @see Container#removeNotify 758 * @since 1.0 759 */ 760 public void addNotify() { 761 synchronized (getTreeLock()) { 762 Container parent = this.parent; 763 if (parent != null && parent.peer == null) { 764 parent.addNotify(); 765 } 766 if (peer == null) { 767 peer = getComponentFactory().createWindow(this); 768 } 769 synchronized (allWindows) { 770 allWindows.add(this); 771 } 772 super.addNotify(); 773 } 774 } 775 776 /** 777 * {@inheritDoc} 778 */ 779 public void removeNotify() { 780 synchronized (getTreeLock()) { 781 synchronized (allWindows) { 782 allWindows.remove(this); 783 } 784 super.removeNotify(); 785 } 786 } 787 788 /** 789 * Causes this Window to be sized to fit the preferred size 790 * and layouts of its subcomponents. The resulting width and 791 * height of the window are automatically enlarged if either 792 * of dimensions is less than the minimum size as specified 793 * by the previous call to the {@code setMinimumSize} method. 794 * <p> 795 * If the window and/or its owner are not displayable yet, 796 * both of them are made displayable before calculating 797 * the preferred size. The Window is validated after its 798 * size is being calculated. 799 * 800 * @see Component#isDisplayable 801 * @see #setMinimumSize 802 */ 803 @SuppressWarnings("deprecation") 804 public void pack() { 805 Container parent = this.parent; 806 if (parent != null && parent.peer == null) { 807 parent.addNotify(); 808 } 809 if (peer == null) { 810 addNotify(); 811 } 812 Dimension newSize = getPreferredSize(); 813 if (peer != null) { 814 setClientSize(newSize.width, newSize.height); 815 } 816 817 if(beforeFirstShow) { 818 isPacked = true; 819 } 820 821 validateUnconditionally(); 822 } 823 824 /** 825 * Sets the minimum size of this window to a constant 826 * value. Subsequent calls to {@code getMinimumSize} 827 * will always return this value. If current window's 828 * size is less than {@code minimumSize} the size of the 829 * window is automatically enlarged to honor the minimum size. 830 * <p> 831 * If the {@code setSize} or {@code setBounds} methods 832 * are called afterwards with a width or height less than 833 * that was specified by the {@code setMinimumSize} method 834 * the window is automatically enlarged to meet 835 * the {@code minimumSize} value. The {@code minimumSize} 836 * value also affects the behaviour of the {@code pack} method. 837 * <p> 838 * The default behavior is restored by setting the minimum size 839 * parameter to the {@code null} value. 840 * <p> 841 * Resizing operation may be restricted if the user tries 842 * to resize window below the {@code minimumSize} value. 843 * This behaviour is platform-dependent. 844 * 845 * @param minimumSize the new minimum size of this window 846 * @see Component#setMinimumSize 847 * @see #getMinimumSize 848 * @see #isMinimumSizeSet 849 * @see #setSize(Dimension) 850 * @see #pack 851 * @since 1.6 852 */ 853 public void setMinimumSize(Dimension minimumSize) { 854 synchronized (getTreeLock()) { 855 super.setMinimumSize(minimumSize); 856 Dimension size = getSize(); 857 if (isMinimumSizeSet()) { 858 if (size.width < minimumSize.width || size.height < minimumSize.height) { 859 int nw = Math.max(width, minimumSize.width); 860 int nh = Math.max(height, minimumSize.height); 861 setSize(nw, nh); 862 } 863 } 864 if (peer != null) { 865 ((WindowPeer)peer).updateMinimumSize(); 866 } 867 } 868 } 869 870 /** 871 * {@inheritDoc} 872 * <p> 873 * The {@code d.width} and {@code d.height} values 874 * are automatically enlarged if either is less than 875 * the minimum size as specified by previous call to 876 * {@code setMinimumSize}. 877 * <p> 878 * The method changes the geometry-related data. Therefore, 879 * the native windowing system may ignore such requests, or it may modify 880 * the requested data, so that the {@code Window} object is placed and sized 881 * in a way that corresponds closely to the desktop settings. 882 * 883 * @see #getSize 884 * @see #setBounds 885 * @see #setMinimumSize 886 * @since 1.6 887 */ 888 public void setSize(Dimension d) { 889 super.setSize(d); 890 } 891 892 /** 893 * {@inheritDoc} 894 * <p> 895 * The {@code width} and {@code height} values 896 * are automatically enlarged if either is less than 897 * the minimum size as specified by previous call to 898 * {@code setMinimumSize}. 899 * <p> 900 * The method changes the geometry-related data. Therefore, 901 * the native windowing system may ignore such requests, or it may modify 902 * the requested data, so that the {@code Window} object is placed and sized 903 * in a way that corresponds closely to the desktop settings. 904 * 905 * @see #getSize 906 * @see #setBounds 907 * @see #setMinimumSize 908 * @since 1.6 909 */ 910 public void setSize(int width, int height) { 911 super.setSize(width, height); 912 } 913 914 /** 915 * {@inheritDoc} 916 * <p> 917 * The method changes the geometry-related data. Therefore, 918 * the native windowing system may ignore such requests, or it may modify 919 * the requested data, so that the {@code Window} object is placed and sized 920 * in a way that corresponds closely to the desktop settings. 921 */ 922 @Override 923 public void setLocation(int x, int y) { 924 super.setLocation(x, y); 925 } 926 927 /** 928 * {@inheritDoc} 929 * <p> 930 * The method changes the geometry-related data. Therefore, 931 * the native windowing system may ignore such requests, or it may modify 932 * the requested data, so that the {@code Window} object is placed and sized 933 * in a way that corresponds closely to the desktop settings. 934 */ 935 @Override 936 public void setLocation(Point p) { 937 super.setLocation(p); 938 } 939 940 /** 941 * @deprecated As of JDK version 1.1, 942 * replaced by {@code setBounds(int, int, int, int)}. 943 */ 944 @Deprecated 945 public void reshape(int x, int y, int width, int height) { 946 if (isMinimumSizeSet()) { 947 Dimension minSize = getMinimumSize(); 948 if (width < minSize.width) { 949 width = minSize.width; 950 } 951 if (height < minSize.height) { 952 height = minSize.height; 953 } 954 } 955 super.reshape(x, y, width, height); 956 } 957 958 void setClientSize(int w, int h) { 959 synchronized (getTreeLock()) { 960 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 961 setBounds(x, y, w, h); 962 } 963 } 964 965 private static final AtomicBoolean 966 beforeFirstWindowShown = new AtomicBoolean(true); 967 968 final void closeSplashScreen() { 969 if (isTrayIconWindow) { 970 return; 971 } 972 if (beforeFirstWindowShown.getAndSet(false)) { 973 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 974 // the object if it hasn't been requested by user code explicitly 975 SunToolkit.closeSplashScreen(); 976 SplashScreen.markClosed(); 977 } 978 } 979 980 /** 981 * Shows or hides this {@code Window} depending on the value of parameter 982 * {@code b}. 983 * <p> 984 * If the method shows the window then the window is also made 985 * focused under the following conditions: 986 * <ul> 987 * <li> The {@code Window} meets the requirements outlined in the 988 * {@link #isFocusableWindow} method. 989 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 990 * <li> Native windowing system allows the {@code Window} to get focused. 991 * </ul> 992 * There is an exception for the second condition (the value of the 993 * {@code autoRequestFocus} property). The property is not taken into account if the 994 * window is a modal dialog, which blocks the currently focused window. 995 * <p> 996 * Developers must never assume that the window is the focused or active window 997 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 998 * @param b if {@code true}, makes the {@code Window} visible, 999 * otherwise hides the {@code Window}. 1000 * If the {@code Window} and/or its owner 1001 * are not yet displayable, both are made displayable. The 1002 * {@code Window} will be validated prior to being made visible. 1003 * If the {@code Window} is already visible, this will bring the 1004 * {@code Window} to the front.<p> 1005 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1006 * of its owned children. 1007 * The {@code Window} and its subcomponents can be made visible again 1008 * with a call to {@code #setVisible(true)}. 1009 * @see java.awt.Component#isDisplayable 1010 * @see java.awt.Component#setVisible 1011 * @see java.awt.Window#toFront 1012 * @see java.awt.Window#dispose 1013 * @see java.awt.Window#setAutoRequestFocus 1014 * @see java.awt.Window#isFocusableWindow 1015 */ 1016 public void setVisible(boolean b) { 1017 super.setVisible(b); 1018 } 1019 1020 /** 1021 * Makes the Window visible. If the Window and/or its owner 1022 * are not yet displayable, both are made displayable. The 1023 * Window will be validated prior to being made visible. 1024 * If the Window is already visible, this will bring the Window 1025 * to the front. 1026 * @see Component#isDisplayable 1027 * @see #toFront 1028 * @deprecated As of JDK version 1.5, replaced by 1029 * {@link #setVisible(boolean)}. 1030 */ 1031 @Deprecated 1032 public void show() { 1033 if (peer == null) { 1034 addNotify(); 1035 } 1036 validateUnconditionally(); 1037 1038 isInShow = true; 1039 if (visible) { 1040 toFront(); 1041 } else { 1042 beforeFirstShow = false; 1043 closeSplashScreen(); 1044 Dialog.checkShouldBeBlocked(this); 1045 super.show(); 1046 locationByPlatform = false; 1047 for (int i = 0; i < ownedWindowList.size(); i++) { 1048 Window child = ownedWindowList.elementAt(i).get(); 1049 if ((child != null) && child.showWithParent) { 1050 child.show(); 1051 child.showWithParent = false; 1052 } // endif 1053 } // endfor 1054 if (!isModalBlocked()) { 1055 updateChildrenBlocking(); 1056 } else { 1057 // fix for 6532736: after this window is shown, its blocker 1058 // should be raised to front 1059 modalBlocker.toFront_NoClientCode(); 1060 } 1061 if (this instanceof Frame || this instanceof Dialog) { 1062 updateChildFocusableWindowState(this); 1063 } 1064 } 1065 isInShow = false; 1066 1067 // If first time shown, generate WindowOpened event 1068 if ((state & OPENED) == 0) { 1069 postWindowEvent(WindowEvent.WINDOW_OPENED); 1070 state |= OPENED; 1071 } 1072 } 1073 1074 static void updateChildFocusableWindowState(Window w) { 1075 if (w.peer != null && w.isShowing()) { 1076 ((WindowPeer)w.peer).updateFocusableWindowState(); 1077 } 1078 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1079 Window child = w.ownedWindowList.elementAt(i).get(); 1080 if (child != null) { 1081 updateChildFocusableWindowState(child); 1082 } 1083 } 1084 } 1085 1086 synchronized void postWindowEvent(int id) { 1087 if (windowListener != null 1088 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1089 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1090 WindowEvent e = new WindowEvent(this, id); 1091 Toolkit.getEventQueue().postEvent(e); 1092 } 1093 } 1094 1095 /** 1096 * Hide this Window, its subcomponents, and all of its owned children. 1097 * The Window and its subcomponents can be made visible again 1098 * with a call to {@code show}. 1099 * @see #show 1100 * @see #dispose 1101 * @deprecated As of JDK version 1.5, replaced by 1102 * {@link #setVisible(boolean)}. 1103 */ 1104 @Deprecated 1105 public void hide() { 1106 synchronized(ownedWindowList) { 1107 for (int i = 0; i < ownedWindowList.size(); i++) { 1108 Window child = ownedWindowList.elementAt(i).get(); 1109 if ((child != null) && child.visible) { 1110 child.hide(); 1111 child.showWithParent = true; 1112 } 1113 } 1114 } 1115 if (isModalBlocked()) { 1116 modalBlocker.unblockWindow(this); 1117 } 1118 super.hide(); 1119 locationByPlatform = false; 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 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 // Use the unnamed module from the TCCL or system class loader. 2804 ClassLoader cl = Thread.currentThread().getContextClassLoader(); 2805 if (cl == null) { 2806 cl = ClassLoader.getSystemClassLoader(); 2807 } 2808 applyResourceBundle(ResourceBundle.getBundle(rbName, cl.getUnnamedModule())); 2809 } 2810 2811 /* 2812 * Support for tracking all windows owned by this window 2813 */ 2814 void addOwnedWindow(WeakReference<Window> weakWindow) { 2815 if (weakWindow != null) { 2816 synchronized(ownedWindowList) { 2817 // this if statement should really be an assert, but we don't 2818 // have asserts... 2819 if (!ownedWindowList.contains(weakWindow)) { 2820 ownedWindowList.addElement(weakWindow); 2821 } 2822 } 2823 } 2824 } 2825 2826 void removeOwnedWindow(WeakReference<Window> weakWindow) { 2827 if (weakWindow != null) { 2828 // synchronized block not required since removeElement is 2829 // already synchronized 2830 ownedWindowList.removeElement(weakWindow); 2831 } 2832 } 2833 2834 void connectOwnedWindow(Window child) { 2835 child.parent = this; 2836 addOwnedWindow(child.weakThis); 2837 child.disposerRecord.updateOwner(); 2838 } 2839 2840 private void addToWindowList() { 2841 synchronized (Window.class) { 2842 @SuppressWarnings("unchecked") 2843 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2844 if (windowList == null) { 2845 windowList = new Vector<WeakReference<Window>>(); 2846 appContext.put(Window.class, windowList); 2847 } 2848 windowList.add(weakThis); 2849 } 2850 } 2851 2852 private static void removeFromWindowList(AppContext context, WeakReference<Window> weakThis) { 2853 synchronized (Window.class) { 2854 @SuppressWarnings("unchecked") 2855 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2856 if (windowList != null) { 2857 windowList.remove(weakThis); 2858 } 2859 } 2860 } 2861 2862 private void removeFromWindowList() { 2863 removeFromWindowList(appContext, weakThis); 2864 } 2865 2866 /** 2867 * Window type. 2868 * 2869 * Synchronization: ObjectLock 2870 */ 2871 private Type type = Type.NORMAL; 2872 2873 /** 2874 * Sets the type of the window. 2875 * 2876 * This method can only be called while the window is not displayable. 2877 * 2878 * @param type the window type 2879 * @throws IllegalComponentStateException if the window 2880 * is displayable. 2881 * @throws IllegalArgumentException if the type is {@code null} 2882 * @see Component#isDisplayable 2883 * @see #getType 2884 * @since 1.7 2885 */ 2886 public void setType(Type type) { 2887 if (type == null) { 2888 throw new IllegalArgumentException("type should not be null."); 2889 } 2890 synchronized (getTreeLock()) { 2891 if (isDisplayable()) { 2892 throw new IllegalComponentStateException( 2893 "The window is displayable."); 2894 } 2895 synchronized (getObjectLock()) { 2896 this.type = type; 2897 } 2898 } 2899 } 2900 2901 /** 2902 * Returns the type of the window. 2903 * 2904 * @return the type of the window 2905 * @see #setType 2906 * @since 1.7 2907 */ 2908 public Type getType() { 2909 synchronized (getObjectLock()) { 2910 return type; 2911 } 2912 } 2913 2914 /** 2915 * The window serialized data version. 2916 * 2917 * @serial 2918 */ 2919 private int windowSerializedDataVersion = 2; 2920 2921 /** 2922 * Writes default serializable fields to stream. Writes 2923 * a list of serializable {@code WindowListener}s and 2924 * {@code WindowFocusListener}s as optional data. 2925 * Writes a list of child windows as optional data. 2926 * Writes a list of icon images as optional data 2927 * 2928 * @param s the {@code ObjectOutputStream} to write 2929 * @serialData {@code null} terminated sequence of 2930 * 0 or more pairs; the pair consists of a {@code String} 2931 * and {@code Object}; the {@code String} 2932 * indicates the type of object and is one of the following: 2933 * {@code windowListenerK} indicating a 2934 * {@code WindowListener} object; 2935 * {@code windowFocusWindowK} indicating a 2936 * {@code WindowFocusListener} object; 2937 * {@code ownedWindowK} indicating a child 2938 * {@code Window} object 2939 * 2940 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2941 * @see Component#windowListenerK 2942 * @see Component#windowFocusListenerK 2943 * @see Component#ownedWindowK 2944 * @see #readObject(ObjectInputStream) 2945 */ 2946 private void writeObject(ObjectOutputStream s) throws IOException { 2947 synchronized (this) { 2948 // Update old focusMgr fields so that our object stream can be read 2949 // by previous releases 2950 focusMgr = new FocusManager(); 2951 focusMgr.focusRoot = this; 2952 focusMgr.focusOwner = getMostRecentFocusOwner(); 2953 2954 s.defaultWriteObject(); 2955 2956 // Clear fields so that we don't keep extra references around 2957 focusMgr = null; 2958 2959 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2960 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2961 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2962 } 2963 2964 s.writeObject(null); 2965 2966 synchronized (ownedWindowList) { 2967 for (int i = 0; i < ownedWindowList.size(); i++) { 2968 Window child = ownedWindowList.elementAt(i).get(); 2969 if (child != null) { 2970 s.writeObject(ownedWindowK); 2971 s.writeObject(child); 2972 } 2973 } 2974 } 2975 s.writeObject(null); 2976 2977 //write icon array 2978 if (icons != null) { 2979 for (Image i : icons) { 2980 if (i instanceof Serializable) { 2981 s.writeObject(i); 2982 } 2983 } 2984 } 2985 s.writeObject(null); 2986 } 2987 2988 // 2989 // Part of deserialization procedure to be called before 2990 // user's code. 2991 // 2992 private void initDeserializedWindow() { 2993 setWarningString(); 2994 inputContextLock = new Object(); 2995 2996 // Deserialized Windows are not yet visible. 2997 visible = false; 2998 2999 weakThis = new WeakReference<>(this); 3000 3001 anchor = new Object(); 3002 disposerRecord = new WindowDisposerRecord(appContext, this); 3003 sun.java2d.Disposer.addRecord(anchor, disposerRecord); 3004 3005 addToWindowList(); 3006 initGC(null); 3007 ownedWindowList = new Vector<>(); 3008 } 3009 3010 private void deserializeResources(ObjectInputStream s) 3011 throws ClassNotFoundException, IOException, HeadlessException { 3012 3013 if (windowSerializedDataVersion < 2) { 3014 // Translate old-style focus tracking to new model. For 1.4 and 3015 // later releases, we'll rely on the Window's initial focusable 3016 // Component. 3017 if (focusMgr != null) { 3018 if (focusMgr.focusOwner != null) { 3019 KeyboardFocusManager. 3020 setMostRecentFocusOwner(this, focusMgr.focusOwner); 3021 } 3022 } 3023 3024 // This field is non-transient and relies on default serialization. 3025 // However, the default value is insufficient, so we need to set 3026 // it explicitly for object data streams prior to 1.4. 3027 focusableWindowState = true; 3028 3029 3030 } 3031 3032 Object keyOrNull; 3033 while(null != (keyOrNull = s.readObject())) { 3034 String key = ((String)keyOrNull).intern(); 3035 3036 if (windowListenerK == key) { 3037 addWindowListener((WindowListener)(s.readObject())); 3038 } else if (windowFocusListenerK == key) { 3039 addWindowFocusListener((WindowFocusListener)(s.readObject())); 3040 } else if (windowStateListenerK == key) { 3041 addWindowStateListener((WindowStateListener)(s.readObject())); 3042 } else // skip value for unrecognized key 3043 s.readObject(); 3044 } 3045 3046 try { 3047 while (null != (keyOrNull = s.readObject())) { 3048 String key = ((String)keyOrNull).intern(); 3049 3050 if (ownedWindowK == key) 3051 connectOwnedWindow((Window) s.readObject()); 3052 3053 else // skip value for unrecognized key 3054 s.readObject(); 3055 } 3056 3057 //read icons 3058 Object obj = s.readObject(); //Throws OptionalDataException 3059 //for pre1.6 objects. 3060 icons = new ArrayList<Image>(); //Frame.readObject() assumes 3061 //pre1.6 version if icons is null. 3062 while (obj != null) { 3063 if (obj instanceof Image) { 3064 icons.add((Image)obj); 3065 } 3066 obj = s.readObject(); 3067 } 3068 } 3069 catch (OptionalDataException e) { 3070 // 1.1 serialized form 3071 // ownedWindowList will be updated by Frame.readObject 3072 } 3073 3074 } 3075 3076 /** 3077 * Reads the {@code ObjectInputStream} and an optional 3078 * list of listeners to receive various events fired by 3079 * the component; also reads a list of 3080 * (possibly {@code null}) child windows. 3081 * Unrecognized keys or values will be ignored. 3082 * 3083 * @param s the {@code ObjectInputStream} to read 3084 * @exception HeadlessException if 3085 * {@code GraphicsEnvironment.isHeadless} returns 3086 * {@code true} 3087 * @see java.awt.GraphicsEnvironment#isHeadless 3088 * @see #writeObject 3089 */ 3090 private void readObject(ObjectInputStream s) 3091 throws ClassNotFoundException, IOException, HeadlessException 3092 { 3093 GraphicsEnvironment.checkHeadless(); 3094 initDeserializedWindow(); 3095 ObjectInputStream.GetField f = s.readFields(); 3096 3097 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3098 state = f.get("state", 0); 3099 focusableWindowState = f.get("focusableWindowState", true); 3100 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3101 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3102 // Note: 1.4 (or later) doesn't use focusMgr 3103 focusMgr = (FocusManager)f.get("focusMgr", null); 3104 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3105 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3106 setModalExclusionType(et); // since 6.0 3107 boolean aot = f.get("alwaysOnTop", false); 3108 if(aot) { 3109 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3110 } 3111 shape = (Shape)f.get("shape", null); 3112 opacity = (Float)f.get("opacity", 1.0f); 3113 3114 this.securityWarningWidth = 0; 3115 this.securityWarningHeight = 0; 3116 this.securityWarningPointX = 2.0; 3117 this.securityWarningPointY = 0.0; 3118 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3119 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3120 3121 deserializeResources(s); 3122 } 3123 3124 /* 3125 * --- Accessibility Support --- 3126 * 3127 */ 3128 3129 /** 3130 * Gets the AccessibleContext associated with this Window. 3131 * For windows, the AccessibleContext takes the form of an 3132 * AccessibleAWTWindow. 3133 * A new AccessibleAWTWindow instance is created if necessary. 3134 * 3135 * @return an AccessibleAWTWindow that serves as the 3136 * AccessibleContext of this Window 3137 * @since 1.3 3138 */ 3139 public AccessibleContext getAccessibleContext() { 3140 if (accessibleContext == null) { 3141 accessibleContext = new AccessibleAWTWindow(); 3142 } 3143 return accessibleContext; 3144 } 3145 3146 /** 3147 * This class implements accessibility support for the 3148 * {@code Window} class. It provides an implementation of the 3149 * Java Accessibility API appropriate to window user-interface elements. 3150 * @since 1.3 3151 */ 3152 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3153 { 3154 /* 3155 * JDK 1.3 serialVersionUID 3156 */ 3157 private static final long serialVersionUID = 4215068635060671780L; 3158 3159 /** 3160 * Get the role of this object. 3161 * 3162 * @return an instance of AccessibleRole describing the role of the 3163 * object 3164 * @see javax.accessibility.AccessibleRole 3165 */ 3166 public AccessibleRole getAccessibleRole() { 3167 return AccessibleRole.WINDOW; 3168 } 3169 3170 /** 3171 * Get the state of this object. 3172 * 3173 * @return an instance of AccessibleStateSet containing the current 3174 * state set of the object 3175 * @see javax.accessibility.AccessibleState 3176 */ 3177 public AccessibleStateSet getAccessibleStateSet() { 3178 AccessibleStateSet states = super.getAccessibleStateSet(); 3179 if (getFocusOwner() != null) { 3180 states.add(AccessibleState.ACTIVE); 3181 } 3182 return states; 3183 } 3184 3185 } // inner class AccessibleAWTWindow 3186 3187 @Override 3188 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3189 if (gc == null) { 3190 gc = GraphicsEnvironment. 3191 getLocalGraphicsEnvironment(). 3192 getDefaultScreenDevice(). 3193 getDefaultConfiguration(); 3194 } 3195 synchronized (getTreeLock()) { 3196 super.setGraphicsConfiguration(gc); 3197 if (log.isLoggable(PlatformLogger.Level.FINER)) { 3198 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3199 } 3200 } 3201 } 3202 3203 /** 3204 * Sets the location of the window relative to the specified 3205 * component according to the following scenarios. 3206 * <p> 3207 * The target screen mentioned below is a screen to which 3208 * the window should be placed after the setLocationRelativeTo 3209 * method is called. 3210 * <ul> 3211 * <li>If the component is {@code null}, or the {@code 3212 * GraphicsConfiguration} associated with this component is 3213 * {@code null}, the window is placed in the center of the 3214 * screen. The center point can be obtained with the {@link 3215 * GraphicsEnvironment#getCenterPoint 3216 * GraphicsEnvironment.getCenterPoint} method. 3217 * <li>If the component is not {@code null}, but it is not 3218 * currently showing, the window is placed in the center of 3219 * the target screen defined by the {@code 3220 * GraphicsConfiguration} associated with this component. 3221 * <li>If the component is not {@code null} and is shown on 3222 * the screen, then the window is located in such a way that 3223 * the center of the window coincides with the center of the 3224 * component. 3225 * </ul> 3226 * <p> 3227 * If the screens configuration does not allow the window to 3228 * be moved from one screen to another, then the window is 3229 * only placed at the location determined according to the 3230 * above conditions and its {@code GraphicsConfiguration} is 3231 * not changed. 3232 * <p> 3233 * <b>Note</b>: If the lower edge of the window is out of the screen, 3234 * then the window is placed to the side of the {@code Component} 3235 * that is closest to the center of the screen. So if the 3236 * component is on the right part of the screen, the window 3237 * is placed to its left, and vice versa. 3238 * <p> 3239 * If after the window location has been calculated, the upper, 3240 * left, or right edge of the window is out of the screen, 3241 * then the window is located in such a way that the upper, 3242 * left, or right edge of the window coincides with the 3243 * corresponding edge of the screen. If both left and right 3244 * edges of the window are out of the screen, the window is 3245 * placed at the left side of the screen. The similar placement 3246 * will occur if both top and bottom edges are out of the screen. 3247 * In that case, the window is placed at the top side of the screen. 3248 * <p> 3249 * The method changes the geometry-related data. Therefore, 3250 * the native windowing system may ignore such requests, or it may modify 3251 * the requested data, so that the {@code Window} object is placed and sized 3252 * in a way that corresponds closely to the desktop settings. 3253 * 3254 * @param c the component in relation to which the window's location 3255 * is determined 3256 * @see java.awt.GraphicsEnvironment#getCenterPoint 3257 * @since 1.4 3258 */ 3259 public void setLocationRelativeTo(Component c) { 3260 // target location 3261 int dx = 0, dy = 0; 3262 // target GC 3263 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3264 Rectangle gcBounds = gc.getBounds(); 3265 3266 Dimension windowSize = getSize(); 3267 3268 // search a top-level of c 3269 Window componentWindow = SunToolkit.getContainingWindow(c); 3270 if ((c == null) || (componentWindow == null)) { 3271 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3272 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3273 gcBounds = gc.getBounds(); 3274 Point centerPoint = ge.getCenterPoint(); 3275 dx = centerPoint.x - windowSize.width / 2; 3276 dy = centerPoint.y - windowSize.height / 2; 3277 } else if (!c.isShowing()) { 3278 gc = componentWindow.getGraphicsConfiguration(); 3279 gcBounds = gc.getBounds(); 3280 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3281 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3282 } else { 3283 gc = componentWindow.getGraphicsConfiguration(); 3284 gcBounds = gc.getBounds(); 3285 Dimension compSize = c.getSize(); 3286 Point compLocation = c.getLocationOnScreen(); 3287 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3288 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3289 3290 // Adjust for bottom edge being offscreen 3291 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3292 dy = gcBounds.y + gcBounds.height - windowSize.height; 3293 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3294 dx = compLocation.x + compSize.width; 3295 } else { 3296 dx = compLocation.x - windowSize.width; 3297 } 3298 } 3299 } 3300 3301 // Avoid being placed off the edge of the screen: 3302 // bottom 3303 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3304 dy = gcBounds.y + gcBounds.height - windowSize.height; 3305 } 3306 // top 3307 if (dy < gcBounds.y) { 3308 dy = gcBounds.y; 3309 } 3310 // right 3311 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3312 dx = gcBounds.x + gcBounds.width - windowSize.width; 3313 } 3314 // left 3315 if (dx < gcBounds.x) { 3316 dx = gcBounds.x; 3317 } 3318 3319 setLocation(dx, dy); 3320 } 3321 3322 /** 3323 * Overridden from Component. Top-level Windows should not propagate a 3324 * MouseWheelEvent beyond themselves into their owning Windows. 3325 */ 3326 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3327 3328 /** 3329 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3330 */ 3331 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3332 3333 /** 3334 * Creates a new strategy for multi-buffering on this component. 3335 * Multi-buffering is useful for rendering performance. This method 3336 * attempts to create the best strategy available with the number of 3337 * buffers supplied. It will always create a {@code BufferStrategy} 3338 * with that number of buffers. 3339 * A page-flipping strategy is attempted first, then a blitting strategy 3340 * using accelerated buffers. Finally, an unaccelerated blitting 3341 * strategy is used. 3342 * <p> 3343 * Each time this method is called, 3344 * the existing buffer strategy for this component is discarded. 3345 * @param numBuffers number of buffers to create 3346 * @exception IllegalArgumentException if numBuffers is less than 1. 3347 * @exception IllegalStateException if the component is not displayable 3348 * @see #isDisplayable 3349 * @see #getBufferStrategy 3350 * @since 1.4 3351 */ 3352 public void createBufferStrategy(int numBuffers) { 3353 super.createBufferStrategy(numBuffers); 3354 } 3355 3356 /** 3357 * Creates a new strategy for multi-buffering on this component with the 3358 * required buffer capabilities. This is useful, for example, if only 3359 * accelerated memory or page flipping is desired (as specified by the 3360 * buffer capabilities). 3361 * <p> 3362 * Each time this method 3363 * is called, the existing buffer strategy for this component is discarded. 3364 * @param numBuffers number of buffers to create, including the front buffer 3365 * @param caps the required capabilities for creating the buffer strategy; 3366 * cannot be {@code null} 3367 * @exception AWTException if the capabilities supplied could not be 3368 * supported or met; this may happen, for example, if there is not enough 3369 * accelerated memory currently available, or if page flipping is specified 3370 * but not possible. 3371 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3372 * caps is {@code null} 3373 * @see #getBufferStrategy 3374 * @since 1.4 3375 */ 3376 public void createBufferStrategy(int numBuffers, 3377 BufferCapabilities caps) throws AWTException { 3378 super.createBufferStrategy(numBuffers, caps); 3379 } 3380 3381 /** 3382 * Returns the {@code BufferStrategy} used by this component. This 3383 * method will return null if a {@code BufferStrategy} has not yet 3384 * been created or has been disposed. 3385 * 3386 * @return the buffer strategy used by this component 3387 * @see #createBufferStrategy 3388 * @since 1.4 3389 */ 3390 public BufferStrategy getBufferStrategy() { 3391 return super.getBufferStrategy(); 3392 } 3393 3394 Component getTemporaryLostComponent() { 3395 return temporaryLostComponent; 3396 } 3397 Component setTemporaryLostComponent(Component component) { 3398 Component previousComp = temporaryLostComponent; 3399 // Check that "component" is an acceptable focus owner and don't store it otherwise 3400 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3401 if (component == null || component.canBeFocusOwner()) { 3402 temporaryLostComponent = component; 3403 } else { 3404 temporaryLostComponent = null; 3405 } 3406 return previousComp; 3407 } 3408 3409 /** 3410 * Checks whether this window can contain focus owner. 3411 * Verifies that it is focusable and as container it can container focus owner. 3412 * @since 1.5 3413 */ 3414 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3415 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3416 } 3417 3418 private volatile boolean locationByPlatform = locationByPlatformProp; 3419 3420 3421 /** 3422 * Sets whether this Window should appear at the default location for the 3423 * native windowing system or at the current location (returned by 3424 * {@code getLocation}) the next time the Window is made visible. 3425 * This behavior resembles a native window shown without programmatically 3426 * setting its location. Most windowing systems cascade windows if their 3427 * locations are not explicitly set. The actual location is determined once the 3428 * window is shown on the screen. 3429 * <p> 3430 * This behavior can also be enabled by setting the System Property 3431 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3432 * take precedence. 3433 * <p> 3434 * Calls to {@code setVisible}, {@code setLocation} and 3435 * {@code setBounds} after calling {@code setLocationByPlatform} clear 3436 * this property of the Window. 3437 * <p> 3438 * For example, after the following code is executed: 3439 * <pre> 3440 * setLocationByPlatform(true); 3441 * setVisible(true); 3442 * boolean flag = isLocationByPlatform(); 3443 * </pre> 3444 * The window will be shown at platform's default location and 3445 * {@code flag} will be {@code false}. 3446 * <p> 3447 * In the following sample: 3448 * <pre> 3449 * setLocationByPlatform(true); 3450 * setLocation(10, 10); 3451 * boolean flag = isLocationByPlatform(); 3452 * setVisible(true); 3453 * </pre> 3454 * The window will be shown at (10, 10) and {@code flag} will be 3455 * {@code false}. 3456 * 3457 * @param locationByPlatform {@code true} if this Window should appear 3458 * at the default location, {@code false} if at the current location 3459 * @throws IllegalComponentStateException if the window 3460 * is showing on screen and locationByPlatform is {@code true}. 3461 * @see #setLocation 3462 * @see #isShowing 3463 * @see #setVisible 3464 * @see #isLocationByPlatform 3465 * @see java.lang.System#getProperty(String) 3466 * @since 1.5 3467 */ 3468 public void setLocationByPlatform(boolean locationByPlatform) { 3469 synchronized (getTreeLock()) { 3470 if (locationByPlatform && isShowing()) { 3471 throw new IllegalComponentStateException("The window is showing on screen."); 3472 } 3473 this.locationByPlatform = locationByPlatform; 3474 } 3475 } 3476 3477 /** 3478 * Returns {@code true} if this Window will appear at the default location 3479 * for the native windowing system the next time this Window is made visible. 3480 * This method always returns {@code false} if the Window is showing on the 3481 * screen. 3482 * 3483 * @return whether this Window will appear at the default location 3484 * @see #setLocationByPlatform 3485 * @see #isShowing 3486 * @since 1.5 3487 */ 3488 public boolean isLocationByPlatform() { 3489 return locationByPlatform; 3490 } 3491 3492 /** 3493 * {@inheritDoc} 3494 * <p> 3495 * The {@code width} or {@code height} values 3496 * are automatically enlarged if either is less than 3497 * the minimum size as specified by previous call to 3498 * {@code setMinimumSize}. 3499 * <p> 3500 * The method changes the geometry-related data. Therefore, 3501 * the native windowing system may ignore such requests, or it may modify 3502 * the requested data, so that the {@code Window} object is placed and sized 3503 * in a way that corresponds closely to the desktop settings. 3504 * 3505 * @see #getBounds 3506 * @see #setLocation(int, int) 3507 * @see #setLocation(Point) 3508 * @see #setSize(int, int) 3509 * @see #setSize(Dimension) 3510 * @see #setMinimumSize 3511 * @see #setLocationByPlatform 3512 * @see #isLocationByPlatform 3513 * @since 1.6 3514 */ 3515 public void setBounds(int x, int y, int width, int height) { 3516 synchronized (getTreeLock()) { 3517 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3518 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3519 { 3520 locationByPlatform = false; 3521 } 3522 super.setBounds(x, y, width, height); 3523 } 3524 } 3525 3526 /** 3527 * {@inheritDoc} 3528 * <p> 3529 * The {@code r.width} or {@code r.height} values 3530 * will be automatically enlarged if either is less than 3531 * the minimum size as specified by previous call to 3532 * {@code setMinimumSize}. 3533 * <p> 3534 * The method changes the geometry-related data. Therefore, 3535 * the native windowing system may ignore such requests, or it may modify 3536 * the requested data, so that the {@code Window} object is placed and sized 3537 * in a way that corresponds closely to the desktop settings. 3538 * 3539 * @see #getBounds 3540 * @see #setLocation(int, int) 3541 * @see #setLocation(Point) 3542 * @see #setSize(int, int) 3543 * @see #setSize(Dimension) 3544 * @see #setMinimumSize 3545 * @see #setLocationByPlatform 3546 * @see #isLocationByPlatform 3547 * @since 1.6 3548 */ 3549 public void setBounds(Rectangle r) { 3550 setBounds(r.x, r.y, r.width, r.height); 3551 } 3552 3553 /** 3554 * Determines whether this component will be displayed on the screen. 3555 * @return {@code true} if the component and all of its ancestors 3556 * until a toplevel window are visible, {@code false} otherwise 3557 */ 3558 boolean isRecursivelyVisible() { 3559 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3560 // We're overriding isRecursivelyVisible to implement this policy. 3561 return visible; 3562 } 3563 3564 3565 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3566 3567 /** 3568 * Returns the opacity of the window. 3569 * 3570 * @return the opacity of the window 3571 * 3572 * @see Window#setOpacity(float) 3573 * @see GraphicsDevice.WindowTranslucency 3574 * 3575 * @since 1.7 3576 */ 3577 public float getOpacity() { 3578 return opacity; 3579 } 3580 3581 /** 3582 * Sets the opacity of the window. 3583 * <p> 3584 * The opacity value is in the range [0..1]. Note that setting the opacity 3585 * level of 0 may or may not disable the mouse event handling on this 3586 * window. This is a platform-dependent behavior. 3587 * <p> 3588 * The following conditions must be met in order to set the opacity value 3589 * less than {@code 1.0f}: 3590 * <ul> 3591 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3592 * translucency must be supported by the underlying system 3593 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3594 * and {@link Dialog#setUndecorated}) 3595 * <li>The window must not be in full-screen mode (see {@link 3596 * GraphicsDevice#setFullScreenWindow(Window)}) 3597 * </ul> 3598 * <p> 3599 * If the requested opacity value is less than {@code 1.0f}, and any of the 3600 * above conditions are not met, the window opacity will not change, 3601 * and the {@code IllegalComponentStateException} will be thrown. 3602 * <p> 3603 * The translucency levels of individual pixels may also be effected by the 3604 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3605 * current shape of this window (see {@link #setShape(Shape)}). 3606 * 3607 * @param opacity the opacity level to set to the window 3608 * 3609 * @throws IllegalArgumentException if the opacity is out of the range 3610 * [0..1] 3611 * @throws IllegalComponentStateException if the window is decorated and 3612 * the opacity is less than {@code 1.0f} 3613 * @throws IllegalComponentStateException if the window is in full screen 3614 * mode, and the opacity is less than {@code 1.0f} 3615 * @throws UnsupportedOperationException if the {@code 3616 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3617 * translucency is not supported and the opacity is less than 3618 * {@code 1.0f} 3619 * 3620 * @see Window#getOpacity 3621 * @see Window#setBackground(Color) 3622 * @see Window#setShape(Shape) 3623 * @see Frame#isUndecorated 3624 * @see Dialog#isUndecorated 3625 * @see GraphicsDevice.WindowTranslucency 3626 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3627 * 3628 * @since 1.7 3629 */ 3630 @SuppressWarnings("deprecation") 3631 public void setOpacity(float opacity) { 3632 synchronized (getTreeLock()) { 3633 if (opacity < 0.0f || opacity > 1.0f) { 3634 throw new IllegalArgumentException( 3635 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3636 } 3637 if (opacity < 1.0f) { 3638 GraphicsConfiguration gc = getGraphicsConfiguration(); 3639 GraphicsDevice gd = gc.getDevice(); 3640 if (gc.getDevice().getFullScreenWindow() == this) { 3641 throw new IllegalComponentStateException( 3642 "Setting opacity for full-screen window is not supported."); 3643 } 3644 if (!gd.isWindowTranslucencySupported( 3645 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3646 { 3647 throw new UnsupportedOperationException( 3648 "TRANSLUCENT translucency is not supported."); 3649 } 3650 } 3651 this.opacity = opacity; 3652 WindowPeer peer = (WindowPeer) this.peer; 3653 if (peer != null) { 3654 peer.setOpacity(opacity); 3655 } 3656 } 3657 } 3658 3659 /** 3660 * Returns the shape of the window. 3661 * 3662 * The value returned by this method may not be the same as 3663 * previously set with {@code setShape(shape)}, but it is guaranteed 3664 * to represent the same shape. 3665 * 3666 * @return the shape of the window or {@code null} if no 3667 * shape is specified for the window 3668 * 3669 * @see Window#setShape(Shape) 3670 * @see GraphicsDevice.WindowTranslucency 3671 * 3672 * @since 1.7 3673 */ 3674 public Shape getShape() { 3675 synchronized (getTreeLock()) { 3676 return shape == null ? null : new Path2D.Float(shape); 3677 } 3678 } 3679 3680 /** 3681 * Sets the shape of the window. 3682 * <p> 3683 * Setting a shape cuts off some parts of the window. Only the parts that 3684 * belong to the given {@link Shape} remain visible and clickable. If 3685 * the shape argument is {@code null}, this method restores the default 3686 * shape, making the window rectangular on most platforms. 3687 * <p> 3688 * The following conditions must be met to set a non-null shape: 3689 * <ul> 3690 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3691 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3692 * underlying system 3693 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3694 * and {@link Dialog#setUndecorated}) 3695 * <li>The window must not be in full-screen mode (see {@link 3696 * GraphicsDevice#setFullScreenWindow(Window)}) 3697 * </ul> 3698 * <p> 3699 * If the requested shape is not {@code null}, and any of the above 3700 * conditions are not met, the shape of this window will not change, 3701 * and either the {@code UnsupportedOperationException} or {@code 3702 * IllegalComponentStateException} will be thrown. 3703 * <p> 3704 * The translucency levels of individual pixels may also be effected by the 3705 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3706 * opacity value (see {@link #setOpacity(float)}). See {@link 3707 * GraphicsDevice.WindowTranslucency} for more details. 3708 * 3709 * @param shape the shape to set to the window 3710 * 3711 * @throws IllegalComponentStateException if the shape is not {@code 3712 * null} and the window is decorated 3713 * @throws IllegalComponentStateException if the shape is not {@code 3714 * null} and the window is in full-screen mode 3715 * @throws UnsupportedOperationException if the shape is not {@code 3716 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3717 * PERPIXEL_TRANSPARENT} translucency is not supported 3718 * 3719 * @see Window#getShape() 3720 * @see Window#setBackground(Color) 3721 * @see Window#setOpacity(float) 3722 * @see Frame#isUndecorated 3723 * @see Dialog#isUndecorated 3724 * @see GraphicsDevice.WindowTranslucency 3725 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3726 * 3727 * @since 1.7 3728 */ 3729 public void setShape(Shape shape) { 3730 synchronized (getTreeLock()) { 3731 if (shape != null) { 3732 GraphicsConfiguration gc = getGraphicsConfiguration(); 3733 GraphicsDevice gd = gc.getDevice(); 3734 if (gc.getDevice().getFullScreenWindow() == this) { 3735 throw new IllegalComponentStateException( 3736 "Setting shape for full-screen window is not supported."); 3737 } 3738 if (!gd.isWindowTranslucencySupported( 3739 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3740 { 3741 throw new UnsupportedOperationException( 3742 "PERPIXEL_TRANSPARENT translucency is not supported."); 3743 } 3744 } 3745 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3746 WindowPeer peer = (WindowPeer) this.peer; 3747 if (peer != null) { 3748 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3749 } 3750 } 3751 } 3752 3753 /** 3754 * Gets the background color of this window. 3755 * <p> 3756 * Note that the alpha component of the returned color indicates whether 3757 * the window is in the non-opaque (per-pixel translucent) mode. 3758 * 3759 * @return this component's background color 3760 * 3761 * @see Window#setBackground(Color) 3762 * @see Window#isOpaque 3763 * @see GraphicsDevice.WindowTranslucency 3764 */ 3765 @Override 3766 public Color getBackground() { 3767 return super.getBackground(); 3768 } 3769 3770 /** 3771 * Sets the background color of this window. 3772 * <p> 3773 * If the windowing system supports the {@link 3774 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3775 * translucency, the alpha component of the given background color 3776 * may effect the mode of operation for this window: it indicates whether 3777 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3778 * (alpha is less than {@code 1.0f}). If the given background color is 3779 * {@code null}, the window is considered completely opaque. 3780 * <p> 3781 * All the following conditions must be met to enable the per-pixel 3782 * transparency mode for this window: 3783 * <ul> 3784 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3785 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3786 * device where this window is located 3787 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3788 * and {@link Dialog#setUndecorated}) 3789 * <li>The window must not be in full-screen mode (see {@link 3790 * GraphicsDevice#setFullScreenWindow(Window)}) 3791 * </ul> 3792 * <p> 3793 * If the alpha component of the requested background color is less than 3794 * {@code 1.0f}, and any of the above conditions are not met, the background 3795 * color of this window will not change, the alpha component of the given 3796 * background color will not affect the mode of operation for this window, 3797 * and either the {@code UnsupportedOperationException} or {@code 3798 * IllegalComponentStateException} will be thrown. 3799 * <p> 3800 * When the window is per-pixel translucent, the drawing sub-system 3801 * respects the alpha value of each individual pixel. If a pixel gets 3802 * painted with the alpha color component equal to zero, it becomes 3803 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3804 * pixel is fully opaque. Interim values of the alpha color component make 3805 * the pixel semi-transparent. In this mode, the background of the window 3806 * gets painted with the alpha value of the given background color. If the 3807 * alpha value of the argument of this method is equal to {@code 0}, the 3808 * background is not painted at all. 3809 * <p> 3810 * The actual level of translucency of a given pixel also depends on window 3811 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3812 * this window (see {@link #setShape(Shape)}). 3813 * <p> 3814 * Note that painting a pixel with the alpha value of {@code 0} may or may 3815 * not disable the mouse event handling on this pixel. This is a 3816 * platform-dependent behavior. To make sure the mouse events do not get 3817 * dispatched to a particular pixel, the pixel must be excluded from the 3818 * shape of the window. 3819 * <p> 3820 * Enabling the per-pixel translucency mode may change the graphics 3821 * configuration of this window due to the native platform requirements. 3822 * 3823 * @param bgColor the color to become this window's background color. 3824 * 3825 * @throws IllegalComponentStateException if the alpha value of the given 3826 * background color is less than {@code 1.0f} and the window is decorated 3827 * @throws IllegalComponentStateException if the alpha value of the given 3828 * background color is less than {@code 1.0f} and the window is in 3829 * full-screen mode 3830 * @throws UnsupportedOperationException if the alpha value of the given 3831 * background color is less than {@code 1.0f} and {@link 3832 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3833 * PERPIXEL_TRANSLUCENT} translucency is not supported 3834 * 3835 * @see Window#getBackground 3836 * @see Window#isOpaque 3837 * @see Window#setOpacity(float) 3838 * @see Window#setShape(Shape) 3839 * @see Frame#isUndecorated 3840 * @see Dialog#isUndecorated 3841 * @see GraphicsDevice.WindowTranslucency 3842 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3843 * @see GraphicsConfiguration#isTranslucencyCapable() 3844 */ 3845 @Override 3846 public void setBackground(Color bgColor) { 3847 Color oldBg = getBackground(); 3848 super.setBackground(bgColor); 3849 if (oldBg != null && oldBg.equals(bgColor)) { 3850 return; 3851 } 3852 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3853 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3854 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3855 GraphicsConfiguration gc = getGraphicsConfiguration(); 3856 GraphicsDevice gd = gc.getDevice(); 3857 if (gc.getDevice().getFullScreenWindow() == this) { 3858 throw new IllegalComponentStateException( 3859 "Making full-screen window non opaque is not supported."); 3860 } 3861 if (!gc.isTranslucencyCapable()) { 3862 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3863 if (capableGC == null) { 3864 throw new UnsupportedOperationException( 3865 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3866 } 3867 setGraphicsConfiguration(capableGC); 3868 } 3869 setLayersOpaque(this, false); 3870 } else if ((oldAlpha < 255) && (alpha == 255)) { 3871 setLayersOpaque(this, true); 3872 } 3873 WindowPeer peer = (WindowPeer) this.peer; 3874 if (peer != null) { 3875 peer.setOpaque(alpha == 255); 3876 } 3877 } 3878 3879 /** 3880 * Indicates if the window is currently opaque. 3881 * <p> 3882 * The method returns {@code false} if the background color of the window 3883 * is not {@code null} and the alpha component of the color is less than 3884 * {@code 1.0f}. The method returns {@code true} otherwise. 3885 * 3886 * @return {@code true} if the window is opaque, {@code false} otherwise 3887 * 3888 * @see Window#getBackground 3889 * @see Window#setBackground(Color) 3890 * @since 1.7 3891 */ 3892 @Override 3893 public boolean isOpaque() { 3894 Color bg = getBackground(); 3895 return bg != null ? bg.getAlpha() == 255 : true; 3896 } 3897 3898 private void updateWindow() { 3899 synchronized (getTreeLock()) { 3900 WindowPeer peer = (WindowPeer) this.peer; 3901 if (peer != null) { 3902 peer.updateWindow(); 3903 } 3904 } 3905 } 3906 3907 /** 3908 * {@inheritDoc} 3909 * 3910 * @since 1.7 3911 */ 3912 @Override 3913 public void paint(Graphics g) { 3914 if (!isOpaque()) { 3915 Graphics gg = g.create(); 3916 try { 3917 if (gg instanceof Graphics2D) { 3918 gg.setColor(getBackground()); 3919 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3920 gg.fillRect(0, 0, getWidth(), getHeight()); 3921 } 3922 } finally { 3923 gg.dispose(); 3924 } 3925 } 3926 super.paint(g); 3927 } 3928 3929 private static void setLayersOpaque(Component component, boolean isOpaque) { 3930 // Shouldn't use instanceof to avoid loading Swing classes 3931 // if it's a pure AWT application. 3932 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3933 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3934 javax.swing.JRootPane root = rpc.getRootPane(); 3935 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3936 Container c = root.getContentPane(); 3937 javax.swing.JComponent content = 3938 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3939 lp.setOpaque(isOpaque); 3940 root.setOpaque(isOpaque); 3941 if (content != null) { 3942 content.setOpaque(isOpaque); 3943 3944 // Iterate down one level to see whether we have a JApplet 3945 // (which is also a RootPaneContainer) which requires processing 3946 int numChildren = content.getComponentCount(); 3947 if (numChildren > 0) { 3948 Component child = content.getComponent(0); 3949 // It's OK to use instanceof here because we've 3950 // already loaded the RootPaneContainer class by now 3951 if (child instanceof javax.swing.RootPaneContainer) { 3952 setLayersOpaque(child, isOpaque); 3953 } 3954 } 3955 } 3956 } 3957 } 3958 3959 3960 // ************************** MIXING CODE ******************************* 3961 3962 // A window has an owner, but it does NOT have a container 3963 @Override 3964 final Container getContainer() { 3965 return null; 3966 } 3967 3968 /** 3969 * Applies the shape to the component 3970 * @param shape Shape to be applied to the component 3971 */ 3972 @Override 3973 final void applyCompoundShape(Region shape) { 3974 // The shape calculated by mixing code is not intended to be applied 3975 // to windows or frames 3976 } 3977 3978 @Override 3979 final void applyCurrentShape() { 3980 // The shape calculated by mixing code is not intended to be applied 3981 // to windows or frames 3982 } 3983 3984 @Override 3985 final void mixOnReshaping() { 3986 // The shape calculated by mixing code is not intended to be applied 3987 // to windows or frames 3988 } 3989 3990 @Override 3991 final Point getLocationOnWindow() { 3992 return new Point(0, 0); 3993 } 3994 3995 // ****************** END OF MIXING CODE ******************************** 3996 3997 /** 3998 * Limit the given double value with the given range. 3999 */ 4000 private static double limit(double value, double min, double max) { 4001 value = Math.max(value, min); 4002 value = Math.min(value, max); 4003 return value; 4004 } 4005 4006 /** 4007 * Calculate the position of the security warning. 4008 * 4009 * This method gets the window location/size as reported by the native 4010 * system since the locally cached values may represent outdated data. 4011 * 4012 * The method is used from the native code, or via AWTAccessor. 4013 * 4014 * NOTE: this method is invoked on the toolkit thread, and therefore is not 4015 * supposed to become public/user-overridable. 4016 */ 4017 private Point2D calculateSecurityWarningPosition(double x, double y, 4018 double w, double h) 4019 { 4020 // The position according to the spec of SecurityWarning.setPosition() 4021 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 4022 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 4023 4024 // First, make sure the warning is not too far from the window bounds 4025 wx = Window.limit(wx, 4026 x - securityWarningWidth - 2, 4027 x + w + 2); 4028 wy = Window.limit(wy, 4029 y - securityWarningHeight - 2, 4030 y + h + 2); 4031 4032 // Now make sure the warning window is visible on the screen 4033 GraphicsConfiguration graphicsConfig = 4034 getGraphicsConfiguration_NoClientCode(); 4035 Rectangle screenBounds = graphicsConfig.getBounds(); 4036 Insets screenInsets = 4037 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 4038 4039 wx = Window.limit(wx, 4040 screenBounds.x + screenInsets.left, 4041 screenBounds.x + screenBounds.width - screenInsets.right 4042 - securityWarningWidth); 4043 wy = Window.limit(wy, 4044 screenBounds.y + screenInsets.top, 4045 screenBounds.y + screenBounds.height - screenInsets.bottom 4046 - securityWarningHeight); 4047 4048 return new Point2D.Double(wx, wy); 4049 } 4050 4051 static { 4052 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 4053 public float getOpacity(Window window) { 4054 return window.opacity; 4055 } 4056 public void setOpacity(Window window, float opacity) { 4057 window.setOpacity(opacity); 4058 } 4059 public Shape getShape(Window window) { 4060 return window.getShape(); 4061 } 4062 public void setShape(Window window, Shape shape) { 4063 window.setShape(shape); 4064 } 4065 public void setOpaque(Window window, boolean opaque) { 4066 Color bg = window.getBackground(); 4067 if (bg == null) { 4068 bg = new Color(0, 0, 0, 0); 4069 } 4070 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4071 opaque ? 255 : 0)); 4072 } 4073 public void updateWindow(Window window) { 4074 window.updateWindow(); 4075 } 4076 4077 public Dimension getSecurityWarningSize(Window window) { 4078 return new Dimension(window.securityWarningWidth, 4079 window.securityWarningHeight); 4080 } 4081 4082 public void setSecurityWarningSize(Window window, int width, int height) 4083 { 4084 window.securityWarningWidth = width; 4085 window.securityWarningHeight = height; 4086 } 4087 4088 public void setSecurityWarningPosition(Window window, 4089 Point2D point, float alignmentX, float alignmentY) 4090 { 4091 window.securityWarningPointX = point.getX(); 4092 window.securityWarningPointY = point.getY(); 4093 window.securityWarningAlignmentX = alignmentX; 4094 window.securityWarningAlignmentY = alignmentY; 4095 4096 synchronized (window.getTreeLock()) { 4097 WindowPeer peer = (WindowPeer) window.peer; 4098 if (peer != null) { 4099 peer.repositionSecurityWarning(); 4100 } 4101 } 4102 } 4103 4104 public Point2D calculateSecurityWarningPosition(Window window, 4105 double x, double y, double w, double h) 4106 { 4107 return window.calculateSecurityWarningPosition(x, y, w, h); 4108 } 4109 4110 public void setLWRequestStatus(Window changed, boolean status) { 4111 changed.syncLWRequests = status; 4112 } 4113 4114 public boolean isAutoRequestFocus(Window w) { 4115 return w.autoRequestFocus; 4116 } 4117 4118 public boolean isTrayIconWindow(Window w) { 4119 return w.isTrayIconWindow; 4120 } 4121 4122 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4123 w.isTrayIconWindow = isTrayIconWindow; 4124 } 4125 4126 public Window[] getOwnedWindows(Window w) { 4127 return w.getOwnedWindows_NoClientCode(); 4128 } 4129 }); // WindowAccessor 4130 } // static 4131 4132 // a window doesn't need to be updated in the Z-order. 4133 @Override 4134 void updateZOrder() {} 4135 4136 } // class Window 4137 4138 4139 /** 4140 * This class is no longer used, but is maintained for Serialization 4141 * backward-compatibility. 4142 */ 4143 class FocusManager implements java.io.Serializable { 4144 Container focusRoot; 4145 Component focusOwner; 4146 4147 /* 4148 * JDK 1.1 serialVersionUID 4149 */ 4150 static final long serialVersionUID = 2491878825643557906L; 4151 }