1 /* 2 * Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package java.awt; 26 27 import java.awt.event.*; 28 import java.awt.geom.Path2D; 29 import java.awt.geom.Point2D; 30 import java.awt.im.InputContext; 31 import java.awt.image.BufferStrategy; 32 import java.awt.image.BufferedImage; 33 import java.awt.peer.ComponentPeer; 34 import java.awt.peer.WindowPeer; 35 import java.beans.PropertyChangeListener; 36 import java.io.IOException; 37 import java.io.ObjectInputStream; 38 import java.io.ObjectOutputStream; 39 import java.io.OptionalDataException; 40 import java.io.Serializable; 41 import java.lang.ref.WeakReference; 42 import java.lang.reflect.InvocationTargetException; 43 import java.security.AccessController; 44 import java.util.ArrayList; 45 import java.util.Arrays; 46 import java.util.EventListener; 47 import java.util.Locale; 48 import java.util.ResourceBundle; 49 import java.util.Set; 50 import java.util.Vector; 51 import java.util.concurrent.atomic.AtomicBoolean; 52 import javax.accessibility.*; 53 import sun.awt.AWTAccessor; 54 import sun.awt.AppContext; 55 import sun.awt.CausedFocusEvent; 56 import sun.awt.SunToolkit; 57 import sun.awt.util.IdentityArrayList; 58 import sun.java2d.Disposer; 59 import sun.java2d.pipe.Region; 60 import sun.security.action.GetPropertyAction; 61 import sun.security.util.SecurityConstants; 62 import sun.util.logging.PlatformLogger; 63 64 /** 65 * A <code>Window</code> object is a top-level window with no borders and no 66 * menubar. 67 * The default layout for a window is <code>BorderLayout</code>. 68 * <p> 69 * A window must have either a frame, dialog, or another window defined as its 70 * owner when it's constructed. 71 * <p> 72 * In a multi-screen environment, you can create a <code>Window</code> 73 * on a different screen device by constructing the <code>Window</code> 74 * with {@link #Window(Window, GraphicsConfiguration)}. The 75 * <code>GraphicsConfiguration</code> object is one of the 76 * <code>GraphicsConfiguration</code> objects of the target screen device. 77 * <p> 78 * In a virtual device multi-screen environment in which the desktop 79 * area could span multiple physical screen devices, the bounds of all 80 * configurations are relative to the virtual device coordinate system. 81 * The origin of the virtual-coordinate system is at the upper left-hand 82 * corner of the primary physical screen. Depending on the location of 83 * the primary screen in the virtual device, negative coordinates are 84 * possible, as shown in the following figure. 85 * <p> 86 * <img src="doc-files/MultiScreen.gif" 87 * alt="Diagram shows virtual device containing 4 physical screens. Primary physical screen shows coords (0,0), other screen shows (-80,-100)." 88 * ALIGN=center HSPACE=10 VSPACE=7> 89 * <p> 90 * In such an environment, when calling <code>setLocation</code>, 91 * you must pass a virtual coordinate to this method. Similarly, 92 * calling <code>getLocationOnScreen</code> on a <code>Window</code> returns 93 * virtual device coordinates. Call the <code>getBounds</code> method 94 * of a <code>GraphicsConfiguration</code> to find its origin in the virtual 95 * coordinate system. 96 * <p> 97 * The following code sets the location of a <code>Window</code> 98 * at (10, 10) relative to the origin of the physical screen 99 * of the corresponding <code>GraphicsConfiguration</code>. If the 100 * bounds of the <code>GraphicsConfiguration</code> is not taken 101 * into account, the <code>Window</code> location would be set 102 * at (10, 10) relative to the virtual-coordinate system and would appear 103 * on the primary physical screen, which might be different from the 104 * physical screen of the specified <code>GraphicsConfiguration</code>. 105 * 106 * <pre> 107 * Window w = new Window(Window owner, GraphicsConfiguration gc); 108 * Rectangle bounds = gc.getBounds(); 109 * w.setLocation(10 + bounds.x, 10 + bounds.y); 110 * </pre> 111 * 112 * <p> 113 * Note: the location and size of top-level windows (including 114 * <code>Window</code>s, <code>Frame</code>s, and <code>Dialog</code>s) 115 * are under the control of the desktop's window management system. 116 * Calls to <code>setLocation</code>, <code>setSize</code>, and 117 * <code>setBounds</code> are requests (not directives) which are 118 * forwarded to the window management system. Every effort will be 119 * made to honor such requests. However, in some cases the window 120 * management system may ignore such requests, or modify the requested 121 * geometry in order to place and size the <code>Window</code> in a way 122 * that more closely matches the desktop settings. 123 * <p> 124 * Due to the asynchronous nature of native event handling, the results 125 * returned by <code>getBounds</code>, <code>getLocation</code>, 126 * <code>getLocationOnScreen</code>, and <code>getSize</code> might not 127 * reflect the actual geometry of the Window on screen until the last 128 * request has been processed. During the processing of subsequent 129 * requests these values might change accordingly while the window 130 * management system fulfills the requests. 131 * <p> 132 * An application may set the size and location of an invisible 133 * {@code Window} arbitrarily, but the window management system may 134 * subsequently change its size and/or location when the 135 * {@code Window} is made visible. One or more {@code ComponentEvent}s 136 * will be generated to indicate the new geometry. 137 * <p> 138 * Windows are capable of generating the following WindowEvents: 139 * WindowOpened, WindowClosed, WindowGainedFocus, WindowLostFocus. 140 * 141 * @author Sami Shaio 142 * @author Arthur van Hoff 143 * @see WindowEvent 144 * @see #addWindowListener 145 * @see java.awt.BorderLayout 146 * @since JDK1.0 147 */ 148 public class Window extends Container implements Accessible { 149 150 /** 151 * Enumeration of available <i>window types</i>. 152 * 153 * A window type defines the generic visual appearance and behavior of a 154 * top-level window. For example, the type may affect the kind of 155 * decorations of a decorated {@code Frame} or {@code Dialog} instance. 156 * <p> 157 * Some platforms may not fully support a certain window type. Depending on 158 * the level of support, some properties of the window type may be 159 * disobeyed. 160 * 161 * @see #getType 162 * @see #setType 163 * @since 1.7 164 */ 165 public static enum Type { 166 /** 167 * Represents a <i>normal</i> window. 168 * 169 * This is the default type for objects of the {@code Window} class or 170 * its descendants. Use this type for regular top-level windows. 171 */ 172 NORMAL, 173 174 /** 175 * Represents a <i>utility</i> window. 176 * 177 * A utility window is usually a small window such as a toolbar or a 178 * palette. The native system may render the window with smaller 179 * title-bar if the window is either a {@code Frame} or a {@code 180 * Dialog} object, and if it has its decorations enabled. 181 */ 182 UTILITY, 183 184 /** 185 * Represents a <i>popup</i> window. 186 * 187 * A popup window is a temporary window such as a drop-down menu or a 188 * tooltip. On some platforms, windows of that type may be forcibly 189 * made undecorated even if they are instances of the {@code Frame} or 190 * {@code Dialog} class, and have decorations enabled. 191 */ 192 POPUP 193 } 194 195 /** 196 * This represents the warning message that is 197 * to be displayed in a non secure window. ie : 198 * a window that has a security manager installed for 199 * which calling SecurityManager.checkTopLevelWindow() 200 * is false. This message can be displayed anywhere in 201 * the window. 202 * 203 * @serial 204 * @see #getWarningString 205 */ 206 String warningString; 207 208 /** 209 * {@code icons} is the graphical way we can 210 * represent the frames and dialogs. 211 * {@code Window} can't display icon but it's 212 * being inherited by owned {@code Dialog}s. 213 * 214 * @serial 215 * @see #getIconImages 216 * @see #setIconImages(List<? extends Image>) 217 */ 218 transient java.util.List<Image> icons; 219 220 /** 221 * Holds the reference to the component which last had focus in this window 222 * before it lost focus. 223 */ 224 private transient Component temporaryLostComponent; 225 226 static boolean systemSyncLWRequests = false; 227 boolean syncLWRequests = false; 228 transient boolean beforeFirstShow = true; 229 230 static final int OPENED = 0x01; 231 232 /** 233 * An Integer value representing the Window State. 234 * 235 * @serial 236 * @since 1.2 237 * @see #show 238 */ 239 int state; 240 241 /** 242 * A boolean value representing Window always-on-top state 243 * @since 1.5 244 * @serial 245 * @see #setAlwaysOnTop 246 * @see #isAlwaysOnTop 247 */ 248 private boolean alwaysOnTop; 249 250 /** 251 * Contains all the windows that have a peer object associated, 252 * i. e. between addNotify() and removeNotify() calls. The list 253 * of all Window instances can be obtained from AppContext object. 254 * 255 * @since 1.6 256 */ 257 private static final IdentityArrayList<Window> allWindows = new IdentityArrayList<Window>(); 258 259 /** 260 * A vector containing all the windows this 261 * window currently owns. 262 * @since 1.2 263 * @see #getOwnedWindows 264 */ 265 transient Vector<WeakReference<Window>> ownedWindowList = 266 new Vector<WeakReference<Window>>(); 267 268 /* 269 * We insert a weak reference into the Vector of all Windows in AppContext 270 * instead of 'this' so that garbage collection can still take place 271 * correctly. 272 */ 273 private transient WeakReference<Window> weakThis; 274 275 transient boolean showWithParent; 276 277 /** 278 * Contains the modal dialog that blocks this window, or null 279 * if the window is unblocked. 280 * 281 * @since 1.6 282 */ 283 transient Dialog modalBlocker; 284 285 /** 286 * @serial 287 * 288 * @see java.awt.Dialog.ModalExclusionType 289 * @see #getModalExclusionType 290 * @see #setModalExclusionType 291 * 292 * @since 1.6 293 */ 294 Dialog.ModalExclusionType modalExclusionType; 295 296 transient WindowListener windowListener; 297 transient WindowStateListener windowStateListener; 298 transient WindowFocusListener windowFocusListener; 299 300 transient InputContext inputContext; 301 private transient Object inputContextLock = new Object(); 302 303 /** 304 * Unused. Maintained for serialization backward-compatibility. 305 * 306 * @serial 307 * @since 1.2 308 */ 309 private FocusManager focusMgr; 310 311 /** 312 * Indicates whether this Window can become the focused Window. 313 * 314 * @serial 315 * @see #getFocusableWindowState 316 * @see #setFocusableWindowState 317 * @since 1.4 318 */ 319 private boolean focusableWindowState = true; 320 321 /** 322 * Indicates whether this window should receive focus on 323 * subsequently being shown (with a call to {@code setVisible(true)}), or 324 * being moved to the front (with a call to {@code toFront()}). 325 * 326 * @serial 327 * @see #setAutoRequestFocus 328 * @see #isAutoRequestFocus 329 * @since 1.7 330 */ 331 private volatile boolean autoRequestFocus = true; 332 333 /* 334 * Indicates that this window is being shown. This flag is set to true at 335 * the beginning of show() and to false at the end of show(). 336 * 337 * @see #show() 338 * @see Dialog#shouldBlock 339 */ 340 transient boolean isInShow = false; 341 342 /* 343 * The opacity level of the window 344 * 345 * @serial 346 * @see #setOpacity(float) 347 * @see #getOpacity() 348 * @since 1.7 349 */ 350 private float opacity = 1.0f; 351 352 /* 353 * The shape assigned to this window. This field is set to {@code null} if 354 * no shape is set (rectangular window). 355 * 356 * @serial 357 * @see #getShape() 358 * @see #setShape(Shape) 359 * @since 1.7 360 */ 361 private Shape shape = null; 362 363 private static final String base = "win"; 364 private static int nameCounter = 0; 365 366 /* 367 * JDK 1.1 serialVersionUID 368 */ 369 private static final long serialVersionUID = 4497834738069338734L; 370 371 private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Window"); 372 373 private static final boolean locationByPlatformProp; 374 375 transient boolean isTrayIconWindow = false; 376 377 /** 378 * These fields are initialized in the native peer code 379 * or via AWTAccessor's WindowAccessor. 380 */ 381 private transient volatile int securityWarningWidth = 0; 382 private transient volatile int securityWarningHeight = 0; 383 384 /** 385 * These fields represent the desired location for the security 386 * warning if this window is untrusted. 387 * See com.sun.awt.SecurityWarning for more details. 388 */ 389 private transient double securityWarningPointX = 2.0; 390 private transient double securityWarningPointY = 0.0; 391 private transient float securityWarningAlignmentX = RIGHT_ALIGNMENT; 392 private transient float securityWarningAlignmentY = TOP_ALIGNMENT; 393 394 static { 395 /* ensure that the necessary native libraries are loaded */ 396 Toolkit.loadLibraries(); 397 if (!GraphicsEnvironment.isHeadless()) { 398 initIDs(); 399 } 400 401 String s = (String) java.security.AccessController.doPrivileged( 402 new GetPropertyAction("java.awt.syncLWRequests")); 403 systemSyncLWRequests = (s != null && s.equals("true")); 404 s = (String) java.security.AccessController.doPrivileged( 405 new GetPropertyAction("java.awt.Window.locationByPlatform")); 406 locationByPlatformProp = (s != null && s.equals("true")); 407 } 408 409 /** 410 * Initialize JNI field and method IDs for fields that may be 411 accessed from C. 412 */ 413 private static native void initIDs(); 414 415 /** 416 * Constructs a new, initially invisible window in default size with the 417 * specified <code>GraphicsConfiguration</code>. 418 * <p> 419 * If there is a security manager, this method first calls 420 * the security manager's <code>checkTopLevelWindow</code> 421 * method with <code>this</code> 422 * as its argument to determine whether or not the window 423 * must be displayed with a warning banner. 424 * 425 * @param gc the <code>GraphicsConfiguration</code> of the target screen 426 * device. If <code>gc</code> is <code>null</code>, the system default 427 * <code>GraphicsConfiguration</code> is assumed 428 * @exception IllegalArgumentException if <code>gc</code> 429 * is not from a screen device 430 * @exception HeadlessException when 431 * <code>GraphicsEnvironment.isHeadless()</code> returns <code>true</code> 432 * 433 * @see java.awt.GraphicsEnvironment#isHeadless 434 * @see java.lang.SecurityManager#checkTopLevelWindow 435 */ 436 Window(GraphicsConfiguration gc) { 437 init(gc); 438 } 439 440 transient Object anchor = new Object(); 441 static class WindowDisposerRecord implements sun.java2d.DisposerRecord { 442 final WeakReference<Window> owner; 443 final WeakReference weakThis; 444 final WeakReference<AppContext> context; 445 WindowDisposerRecord(AppContext context, Window victim) { 446 owner = new WeakReference<Window>(victim.getOwner()); 447 weakThis = victim.weakThis; 448 this.context = new WeakReference<AppContext>(context); 449 } 450 public void dispose() { 451 Window parent = owner.get(); 452 if (parent != null) { 453 parent.removeOwnedWindow(weakThis); 454 } 455 AppContext ac = context.get(); 456 if (null != ac) { 457 Window.removeFromWindowList(ac, weakThis); 458 } 459 } 460 } 461 462 private GraphicsConfiguration initGC(GraphicsConfiguration gc) { 463 GraphicsEnvironment.checkHeadless(); 464 465 if (gc == null) { 466 gc = GraphicsEnvironment.getLocalGraphicsEnvironment(). 467 getDefaultScreenDevice().getDefaultConfiguration(); 468 } 469 setGraphicsConfiguration(gc); 470 471 return gc; 472 } 473 474 private void init(GraphicsConfiguration gc) { 475 GraphicsEnvironment.checkHeadless(); 476 477 syncLWRequests = systemSyncLWRequests; 478 479 weakThis = new WeakReference<Window>(this); 480 addToWindowList(); 481 482 setWarningString(); 483 this.cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 484 this.visible = false; 485 486 gc = initGC(gc); 487 488 if (gc.getDevice().getType() != 489 GraphicsDevice.TYPE_RASTER_SCREEN) { 490 throw new IllegalArgumentException("not a screen device"); 491 } 492 setLayout(new BorderLayout()); 493 494 /* offset the initial location with the original of the screen */ 495 /* and any insets */ 496 Rectangle screenBounds = gc.getBounds(); 497 Insets screenInsets = getToolkit().getScreenInsets(gc); 498 int x = getX() + screenBounds.x + screenInsets.left; 499 int y = getY() + screenBounds.y + screenInsets.top; 500 if (x != this.x || y != this.y) { 501 setLocation(x, y); 502 /* reset after setLocation */ 503 setLocationByPlatform(locationByPlatformProp); 504 } 505 506 modalExclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 507 508 SunToolkit.checkAndSetPolicy(this, false); 509 } 510 511 /** 512 * Constructs a new, initially invisible window in the default size. 513 * 514 * <p>First, if there is a security manager, its 515 * <code>checkTopLevelWindow</code> 516 * method is called with <code>this</code> 517 * as its argument 518 * to see if it's ok to display the window without a warning banner. 519 * If the default implementation of <code>checkTopLevelWindow</code> 520 * is used (that is, that method is not overriden), then this results in 521 * a call to the security manager's <code>checkPermission</code> method 522 * with an <code>AWTPermission("showWindowWithoutWarningBanner")</code> 523 * permission. It that method raises a SecurityException, 524 * <code>checkTopLevelWindow</code> returns false, otherwise it 525 * returns true. If it returns false, a warning banner is created. 526 * 527 * @exception HeadlessException when 528 * <code>GraphicsEnvironment.isHeadless()</code> returns <code>true</code> 529 * 530 * @see java.awt.GraphicsEnvironment#isHeadless 531 * @see java.lang.SecurityManager#checkTopLevelWindow 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</code> 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, this method first calls 544 * the security manager's <code>checkTopLevelWindow</code> 545 * method with <code>this</code> 546 * as its argument to determine whether or not the window 547 * must be displayed with a warning banner. 548 * 549 * @param owner the <code>Frame</code> to act as owner or <code>null</code> 550 * if this window has no owner 551 * @exception IllegalArgumentException if the <code>owner</code>'s 552 * <code>GraphicsConfiguration</code> is not from a screen device 553 * @exception HeadlessException when 554 * <code>GraphicsEnvironment.isHeadless</code> returns <code>true</code> 555 * 556 * @see java.awt.GraphicsEnvironment#isHeadless 557 * @see java.lang.SecurityManager#checkTopLevelWindow 558 * @see #isShowing 559 */ 560 public Window(Frame owner) { 561 this(owner == null ? (GraphicsConfiguration)null : 562 owner.getGraphicsConfiguration()); 563 ownedInit(owner); 564 } 565 566 /** 567 * Constructs a new, initially invisible window with the specified 568 * <code>Window</code> as its owner. This window will not be focusable 569 * unless its nearest owning <code>Frame</code> or <code>Dialog</code> 570 * is showing on the screen. 571 * <p> 572 * If there is a security manager, this method first calls 573 * the security manager's <code>checkTopLevelWindow</code> 574 * method with <code>this</code> 575 * as its argument to determine whether or not the window 576 * must be displayed with a warning banner. 577 * 578 * @param owner the <code>Window</code> to act as owner or 579 * <code>null</code> if this window has no owner 580 * @exception IllegalArgumentException if the <code>owner</code>'s 581 * <code>GraphicsConfiguration</code> is not from a screen device 582 * @exception HeadlessException when 583 * <code>GraphicsEnvironment.isHeadless()</code> returns 584 * <code>true</code> 585 * 586 * @see java.awt.GraphicsEnvironment#isHeadless 587 * @see java.lang.SecurityManager#checkTopLevelWindow 588 * @see #isShowing 589 * 590 * @since 1.2 591 */ 592 public Window(Window owner) { 593 this(owner == null ? (GraphicsConfiguration)null : 594 owner.getGraphicsConfiguration()); 595 ownedInit(owner); 596 } 597 598 /** 599 * Constructs a new, initially invisible window with the specified owner 600 * <code>Window</code> and a <code>GraphicsConfiguration</code> 601 * of a screen device. The Window will not be focusable unless 602 * its nearest owning <code>Frame</code> or <code>Dialog</code> 603 * is showing on the screen. 604 * <p> 605 * If there is a security manager, this method first calls 606 * the security manager's <code>checkTopLevelWindow</code> 607 * method with <code>this</code> 608 * as its argument to determine whether or not the window 609 * must be displayed with a warning banner. 610 * 611 * @param owner the window to act as owner or <code>null</code> 612 * if this window has no owner 613 * @param gc the <code>GraphicsConfiguration</code> of the target 614 * screen device; if <code>gc</code> is <code>null</code>, 615 * the system default <code>GraphicsConfiguration</code> is assumed 616 * @exception IllegalArgumentException if <code>gc</code> 617 * is not from a screen device 618 * @exception HeadlessException when 619 * <code>GraphicsEnvironment.isHeadless()</code> returns 620 * <code>true</code> 621 * 622 * @see java.awt.GraphicsEnvironment#isHeadless 623 * @see java.lang.SecurityManager#checkTopLevelWindow 624 * @see GraphicsConfiguration#getBounds 625 * @see #isShowing 626 * @since 1.3 627 */ 628 public Window(Window owner, GraphicsConfiguration gc) { 629 this(gc); 630 ownedInit(owner); 631 } 632 633 private void ownedInit(Window owner) { 634 this.parent = owner; 635 if (owner != null) { 636 owner.addOwnedWindow(weakThis); 637 } 638 639 // Fix for 6758673: this call is moved here from init(gc), because 640 // WindowDisposerRecord requires a proper value of parent field. 641 Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this)); 642 } 643 644 /** 645 * Construct a name for this component. Called by getName() when the 646 * name is null. 647 */ 648 String constructComponentName() { 649 synchronized (Window.class) { 650 return base + nameCounter++; 651 } 652 } 653 654 /** 655 * Returns the sequence of images to be displayed as the icon for this window. 656 * <p> 657 * This method returns a copy of the internally stored list, so all operations 658 * on the returned object will not affect the window's behavior. 659 * 660 * @return the copy of icon images' list for this window, or 661 * empty list if this window doesn't have icon images. 662 * @see #setIconImages 663 * @see #setIconImage(Image) 664 * @since 1.6 665 */ 666 public java.util.List<Image> getIconImages() { 667 java.util.List<Image> icons = this.icons; 668 if (icons == null || icons.size() == 0) { 669 return new ArrayList<Image>(); 670 } 671 return new ArrayList<Image>(icons); 672 } 673 674 /** 675 * Sets the sequence of images to be displayed as the icon 676 * for this window. Subsequent calls to {@code getIconImages} will 677 * always return a copy of the {@code icons} list. 678 * <p> 679 * Depending on the platform capabilities one or several images 680 * of different dimensions will be used as the window's icon. 681 * <p> 682 * The {@code icons} list is scanned for the images of most 683 * appropriate dimensions from the beginning. If the list contains 684 * several images of the same size, the first will be used. 685 * <p> 686 * Ownerless windows with no icon specified use platfrom-default icon. 687 * The icon of an owned window may be inherited from the owner 688 * unless explicitly overridden. 689 * Setting the icon to {@code null} or empty list restores 690 * the default behavior. 691 * <p> 692 * Note : Native windowing systems may use different images of differing 693 * dimensions to represent a window, depending on the context (e.g. 694 * window decoration, window list, taskbar, etc.). They could also use 695 * just a single image for all contexts or no image at all. 696 * 697 * @param icons the list of icon images to be displayed. 698 * @see #getIconImages() 699 * @see #setIconImage(Image) 700 * @since 1.6 701 */ 702 public synchronized void setIconImages(java.util.List<? extends Image> icons) { 703 this.icons = (icons == null) ? new ArrayList<Image>() : 704 new ArrayList<Image>(icons); 705 WindowPeer peer = (WindowPeer)this.peer; 706 if (peer != null) { 707 peer.updateIconImages(); 708 } 709 // Always send a property change event 710 firePropertyChange("iconImage", null, null); 711 } 712 713 /** 714 * Sets the image to be displayed as the icon for this window. 715 * <p> 716 * This method can be used instead of {@link #setIconImages setIconImages()} 717 * to specify a single image as a window's icon. 718 * <p> 719 * The following statement: 720 * <pre> 721 * setIconImage(image); 722 * </pre> 723 * is equivalent to: 724 * <pre> 725 * ArrayList<Image> imageList = new ArrayList<Image>(); 726 * imageList.add(image); 727 * setIconImages(imageList); 728 * </pre> 729 * <p> 730 * Note : Native windowing systems may use different images of differing 731 * dimensions to represent a window, depending on the context (e.g. 732 * window decoration, window list, taskbar, etc.). They could also use 733 * just a single image for all contexts or no image at all. 734 * 735 * @param image the icon image to be displayed. 736 * @see #setIconImages 737 * @see #getIconImages() 738 * @since 1.6 739 */ 740 public void setIconImage(Image image) { 741 ArrayList<Image> imageList = new ArrayList<Image>(); 742 if (image != null) { 743 imageList.add(image); 744 } 745 setIconImages(imageList); 746 } 747 748 /** 749 * Makes this Window displayable by creating the connection to its 750 * native screen resource. 751 * This method is called internally by the toolkit and should 752 * not be called directly by programs. 753 * @see Component#isDisplayable 754 * @see Container#removeNotify 755 * @since JDK1.0 756 */ 757 public void addNotify() { 758 synchronized (getTreeLock()) { 759 Container parent = this.parent; 760 if (parent != null && parent.getPeer() == null) { 761 parent.addNotify(); 762 } 763 if (peer == null) { 764 peer = getToolkit().createWindow(this); 765 } 766 synchronized (allWindows) { 767 allWindows.add(this); 768 } 769 super.addNotify(); 770 } 771 } 772 773 /** 774 * {@inheritDoc} 775 */ 776 public void removeNotify() { 777 synchronized (getTreeLock()) { 778 synchronized (allWindows) { 779 allWindows.remove(this); 780 } 781 super.removeNotify(); 782 } 783 } 784 785 /** 786 * Causes this Window to be sized to fit the preferred size 787 * and layouts of its subcomponents. The resulting width and 788 * height of the window are automatically enlarged if either 789 * of dimensions is less than the minimum size as specified 790 * by the previous call to the {@code setMinimumSize} method. 791 * <p> 792 * If the window and/or its owner are not displayable yet, 793 * both of them are made displayable before calculating 794 * the preferred size. The Window is validated after its 795 * size is being calculated. 796 * 797 * @see Component#isDisplayable 798 * @see #setMinimumSize 799 */ 800 public void pack() { 801 Container parent = this.parent; 802 if (parent != null && parent.getPeer() == null) { 803 parent.addNotify(); 804 } 805 if (peer == null) { 806 addNotify(); 807 } 808 Dimension newSize = getPreferredSize(); 809 if (peer != null) { 810 setClientSize(newSize.width, newSize.height); 811 } 812 813 if(beforeFirstShow) { 814 isPacked = true; 815 } 816 817 validateUnconditionally(); 818 } 819 820 /** 821 * Sets the minimum size of this window to a constant 822 * value. Subsequent calls to {@code getMinimumSize} 823 * will always return this value. If current window's 824 * size is less than {@code minimumSize} the size of the 825 * window is automatically enlarged to honor the minimum size. 826 * <p> 827 * If the {@code setSize} or {@code setBounds} methods 828 * are called afterwards with a width or height less than 829 * that was specified by the {@code setMinimumSize} method 830 * the window is automatically enlarged to meet 831 * the {@code minimumSize} value. The {@code minimumSize} 832 * value also affects the behaviour of the {@code pack} method. 833 * <p> 834 * The default behavior is restored by setting the minimum size 835 * parameter to the {@code null} value. 836 * <p> 837 * Resizing operation may be restricted if the user tries 838 * to resize window below the {@code minimumSize} value. 839 * This behaviour is platform-dependent. 840 * 841 * @param minimumSize the new minimum size of this window 842 * @see Component#setMinimumSize 843 * @see #getMinimumSize 844 * @see #isMinimumSizeSet 845 * @see #setSize(Dimension) 846 * @see #pack 847 * @since 1.6 848 */ 849 public void setMinimumSize(Dimension minimumSize) { 850 synchronized (getTreeLock()) { 851 super.setMinimumSize(minimumSize); 852 Dimension size = getSize(); 853 if (isMinimumSizeSet()) { 854 if (size.width < minimumSize.width || size.height < minimumSize.height) { 855 int nw = Math.max(width, minimumSize.width); 856 int nh = Math.max(height, minimumSize.height); 857 setSize(nw, nh); 858 } 859 } 860 if (peer != null) { 861 ((WindowPeer)peer).updateMinimumSize(); 862 } 863 } 864 } 865 866 /** 867 * {@inheritDoc} 868 * <p> 869 * The {@code d.width} and {@code d.height} values 870 * are automatically enlarged if either is less than 871 * the minimum size as specified by previous call to 872 * {@code setMinimumSize}. 873 * <p> 874 * The method changes the geometry-related data. Therefore, 875 * the native windowing system may ignore such requests, or it may modify 876 * the requested data, so that the {@code Window} object is placed and sized 877 * in a way that corresponds closely to the desktop settings. 878 * 879 * @see #getSize 880 * @see #setBounds 881 * @see #setMinimumSize 882 * @since 1.6 883 */ 884 public void setSize(Dimension d) { 885 super.setSize(d); 886 } 887 888 /** 889 * {@inheritDoc} 890 * <p> 891 * The {@code width} and {@code height} values 892 * are automatically enlarged if either is less than 893 * the minimum size as specified by previous call to 894 * {@code setMinimumSize}. 895 * <p> 896 * The method changes the geometry-related data. Therefore, 897 * the native windowing system may ignore such requests, or it may modify 898 * the requested data, so that the {@code Window} object is placed and sized 899 * in a way that corresponds closely to the desktop settings. 900 * 901 * @see #getSize 902 * @see #setBounds 903 * @see #setMinimumSize 904 * @since 1.6 905 */ 906 public void setSize(int width, int height) { 907 super.setSize(width, height); 908 } 909 910 /** 911 * {@inheritDoc} 912 * <p> 913 * The method changes the geometry-related data. Therefore, 914 * the native windowing system may ignore such requests, or it may modify 915 * the requested data, so that the {@code Window} object is placed and sized 916 * in a way that corresponds closely to the desktop settings. 917 */ 918 @Override 919 public void setLocation(int x, int y) { 920 super.setLocation(x, y); 921 } 922 923 /** 924 * {@inheritDoc} 925 * <p> 926 * The method changes the geometry-related data. Therefore, 927 * the native windowing system may ignore such requests, or it may modify 928 * the requested data, so that the {@code Window} object is placed and sized 929 * in a way that corresponds closely to the desktop settings. 930 */ 931 @Override 932 public void setLocation(Point p) { 933 super.setLocation(p); 934 } 935 936 /** 937 * @deprecated As of JDK version 1.1, 938 * replaced by <code>setBounds(int, int, int, int)</code>. 939 */ 940 @Deprecated 941 public void reshape(int x, int y, int width, int height) { 942 if (isMinimumSizeSet()) { 943 Dimension minSize = getMinimumSize(); 944 if (width < minSize.width) { 945 width = minSize.width; 946 } 947 if (height < minSize.height) { 948 height = minSize.height; 949 } 950 } 951 super.reshape(x, y, width, height); 952 } 953 954 void setClientSize(int w, int h) { 955 synchronized (getTreeLock()) { 956 setBoundsOp(ComponentPeer.SET_CLIENT_SIZE); 957 setBounds(x, y, w, h); 958 } 959 } 960 961 static private final AtomicBoolean 962 beforeFirstWindowShown = new AtomicBoolean(true); 963 964 final void closeSplashScreen() { 965 if (isTrayIconWindow) { 966 return; 967 } 968 if (beforeFirstWindowShown.getAndSet(false)) { 969 // We don't use SplashScreen.getSplashScreen() to avoid instantiating 970 // the object if it hasn't been requested by user code explicitly 971 SunToolkit.closeSplashScreen(); 972 SplashScreen.markClosed(); 973 } 974 } 975 976 /** 977 * Shows or hides this {@code Window} depending on the value of parameter 978 * {@code b}. 979 * <p> 980 * If the method shows the window then the window is also made 981 * focused under the following conditions: 982 * <ul> 983 * <li> The {@code Window} meets the requirements outlined in the 984 * {@link #isFocusableWindow} method. 985 * <li> The {@code Window}'s {@code autoRequestFocus} property is of the {@code true} value. 986 * <li> Native windowing system allows the {@code Window} to get focused. 987 * </ul> 988 * There is an exception for the second condition (the value of the 989 * {@code autoRequestFocus} property). The property is not taken into account if the 990 * window is a modal dialog, which blocks the currently focused window. 991 * <p> 992 * Developers must never assume that the window is the focused or active window 993 * until it receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED event. 994 * @param b if {@code true}, makes the {@code Window} visible, 995 * otherwise hides the {@code Window}. 996 * If the {@code Window} and/or its owner 997 * are not yet displayable, both are made displayable. The 998 * {@code Window} will be validated prior to being made visible. 999 * If the {@code Window} is already visible, this will bring the 1000 * {@code Window} to the front.<p> 1001 * If {@code false}, hides this {@code Window}, its subcomponents, and all 1002 * of its owned children. 1003 * The {@code Window} and its subcomponents can be made visible again 1004 * with a call to {@code #setVisible(true)}. 1005 * @see java.awt.Component#isDisplayable 1006 * @see java.awt.Component#setVisible 1007 * @see java.awt.Window#toFront 1008 * @see java.awt.Window#dispose 1009 * @see java.awt.Window#setAutoRequestFocus 1010 * @see java.awt.Window#isFocusableWindow 1011 */ 1012 public void setVisible(boolean b) { 1013 super.setVisible(b); 1014 } 1015 1016 /** 1017 * Makes the Window visible. If the Window and/or its owner 1018 * are not yet displayable, both are made displayable. The 1019 * Window will be validated prior to being made visible. 1020 * If the Window is already visible, this will bring the Window 1021 * to the front. 1022 * @see Component#isDisplayable 1023 * @see #toFront 1024 * @deprecated As of JDK version 1.5, replaced by 1025 * {@link #setVisible(boolean)}. 1026 */ 1027 @Deprecated 1028 public void show() { 1029 if (peer == null) { 1030 addNotify(); 1031 } 1032 validateUnconditionally(); 1033 1034 isInShow = true; 1035 if (visible) { 1036 toFront(); 1037 } else { 1038 beforeFirstShow = false; 1039 closeSplashScreen(); 1040 Dialog.checkShouldBeBlocked(this); 1041 super.show(); 1042 locationByPlatform = false; 1043 for (int i = 0; i < ownedWindowList.size(); i++) { 1044 Window child = ownedWindowList.elementAt(i).get(); 1045 if ((child != null) && child.showWithParent) { 1046 child.show(); 1047 child.showWithParent = false; 1048 } // endif 1049 } // endfor 1050 if (!isModalBlocked()) { 1051 updateChildrenBlocking(); 1052 } else { 1053 // fix for 6532736: after this window is shown, its blocker 1054 // should be raised to front 1055 modalBlocker.toFront_NoClientCode(); 1056 } 1057 if (this instanceof Frame || this instanceof Dialog) { 1058 updateChildFocusableWindowState(this); 1059 } 1060 } 1061 isInShow = false; 1062 1063 // If first time shown, generate WindowOpened event 1064 if ((state & OPENED) == 0) { 1065 postWindowEvent(WindowEvent.WINDOW_OPENED); 1066 state |= OPENED; 1067 } 1068 } 1069 1070 static void updateChildFocusableWindowState(Window w) { 1071 if (w.getPeer() != null && w.isShowing()) { 1072 ((WindowPeer)w.getPeer()).updateFocusableWindowState(); 1073 } 1074 for (int i = 0; i < w.ownedWindowList.size(); i++) { 1075 Window child = w.ownedWindowList.elementAt(i).get(); 1076 if (child != null) { 1077 updateChildFocusableWindowState(child); 1078 } 1079 } 1080 } 1081 1082 synchronized void postWindowEvent(int id) { 1083 if (windowListener != null 1084 || (eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 1085 || Toolkit.enabledOnToolkit(AWTEvent.WINDOW_EVENT_MASK)) { 1086 WindowEvent e = new WindowEvent(this, id); 1087 Toolkit.getEventQueue().postEvent(e); 1088 } 1089 } 1090 1091 /** 1092 * Hide this Window, its subcomponents, and all of its owned children. 1093 * The Window and its subcomponents can be made visible again 1094 * with a call to {@code show}. 1095 * </p> 1096 * @see #show 1097 * @see #dispose 1098 * @deprecated As of JDK version 1.5, replaced by 1099 * {@link #setVisible(boolean)}. 1100 */ 1101 @Deprecated 1102 public void hide() { 1103 synchronized(ownedWindowList) { 1104 for (int i = 0; i < ownedWindowList.size(); i++) { 1105 Window child = ownedWindowList.elementAt(i).get(); 1106 if ((child != null) && child.visible) { 1107 child.hide(); 1108 child.showWithParent = true; 1109 } 1110 } 1111 } 1112 if (isModalBlocked()) { 1113 modalBlocker.unblockWindow(this); 1114 } 1115 super.hide(); 1116 } 1117 1118 final void clearMostRecentFocusOwnerOnHide() { 1119 /* do nothing */ 1120 } 1121 1122 /** 1123 * Releases all of the native screen resources used by this 1124 * <code>Window</code>, its subcomponents, and all of its owned 1125 * children. That is, the resources for these <code>Component</code>s 1126 * will be destroyed, any memory they consume will be returned to the 1127 * OS, and they will be marked as undisplayable. 1128 * <p> 1129 * The <code>Window</code> and its subcomponents can be made displayable 1130 * again by rebuilding the native resources with a subsequent call to 1131 * <code>pack</code> or <code>show</code>. The states of the recreated 1132 * <code>Window</code> and its subcomponents will be identical to the 1133 * states of these objects at the point where the <code>Window</code> 1134 * was disposed (not accounting for additional modifications between 1135 * those actions). 1136 * <p> 1137 * <b>Note</b>: When the last displayable window 1138 * within the Java virtual machine (VM) is disposed of, the VM may 1139 * terminate. See <a href="doc-files/AWTThreadIssues.html#Autoshutdown"> 1140 * AWT Threading Issues</a> for more information. 1141 * @see Component#isDisplayable 1142 * @see #pack 1143 * @see #show 1144 */ 1145 public void dispose() { 1146 doDispose(); 1147 } 1148 1149 /* 1150 * Fix for 4872170. 1151 * If dispose() is called on parent then its children have to be disposed as well 1152 * as reported in javadoc. So we need to implement this functionality even if a 1153 * child overrides dispose() in a wrong way without calling super.dispose(). 1154 */ 1155 void disposeImpl() { 1156 dispose(); 1157 if (getPeer() != null) { 1158 doDispose(); 1159 } 1160 } 1161 1162 void doDispose() { 1163 class DisposeAction implements Runnable { 1164 public void run() { 1165 // Check if this window is the fullscreen window for the 1166 // device. Exit the fullscreen mode prior to disposing 1167 // of the window if that's the case. 1168 GraphicsDevice gd = getGraphicsConfiguration().getDevice(); 1169 if (gd.getFullScreenWindow() == Window.this) { 1170 gd.setFullScreenWindow(null); 1171 } 1172 1173 Object[] ownedWindowArray; 1174 synchronized(ownedWindowList) { 1175 ownedWindowArray = new Object[ownedWindowList.size()]; 1176 ownedWindowList.copyInto(ownedWindowArray); 1177 } 1178 for (int i = 0; i < ownedWindowArray.length; i++) { 1179 Window child = (Window) (((WeakReference) 1180 (ownedWindowArray[i])).get()); 1181 if (child != null) { 1182 child.disposeImpl(); 1183 } 1184 } 1185 hide(); 1186 beforeFirstShow = true; 1187 removeNotify(); 1188 synchronized (inputContextLock) { 1189 if (inputContext != null) { 1190 inputContext.dispose(); 1191 inputContext = null; 1192 } 1193 } 1194 clearCurrentFocusCycleRootOnHide(); 1195 } 1196 } 1197 DisposeAction action = new DisposeAction(); 1198 if (EventQueue.isDispatchThread()) { 1199 action.run(); 1200 } 1201 else { 1202 try { 1203 EventQueue.invokeAndWait(action); 1204 } 1205 catch (InterruptedException e) { 1206 System.err.println("Disposal was interrupted:"); 1207 e.printStackTrace(); 1208 } 1209 catch (InvocationTargetException e) { 1210 System.err.println("Exception during disposal:"); 1211 e.printStackTrace(); 1212 } 1213 } 1214 // Execute outside the Runnable because postWindowEvent is 1215 // synchronized on (this). We don't need to synchronize the call 1216 // on the EventQueue anyways. 1217 postWindowEvent(WindowEvent.WINDOW_CLOSED); 1218 } 1219 1220 /* 1221 * Should only be called while holding the tree lock. 1222 * It's overridden here because parent == owner in Window, 1223 * and we shouldn't adjust counter on owner 1224 */ 1225 void adjustListeningChildrenOnParent(long mask, int num) { 1226 } 1227 1228 // Should only be called while holding tree lock 1229 void adjustDecendantsOnParent(int num) { 1230 // do nothing since parent == owner and we shouldn't 1231 // ajust counter on owner 1232 } 1233 1234 /** 1235 * If this Window is visible, brings this Window to the front and may make 1236 * it the focused Window. 1237 * <p> 1238 * Places this Window at the top of the stacking order and shows it in 1239 * front of any other Windows in this VM. No action will take place if this 1240 * Window is not visible. Some platforms do not allow Windows which own 1241 * other Windows to appear on top of those owned Windows. Some platforms 1242 * may not permit this VM to place its Windows above windows of native 1243 * applications, or Windows of other VMs. This permission may depend on 1244 * whether a Window in this VM is already focused. Every attempt will be 1245 * made to move this Window as high as possible in the stacking order; 1246 * however, developers should not assume that this method will move this 1247 * Window above all other windows in every situation. 1248 * <p> 1249 * Developers must never assume that this Window is the focused or active 1250 * Window until this Window receives a WINDOW_GAINED_FOCUS or WINDOW_ACTIVATED 1251 * event. On platforms where the top-most window is the focused window, this 1252 * method will <b>probably</b> focus this Window (if it is not already focused) 1253 * under the following conditions: 1254 * <ul> 1255 * <li> The window meets the requirements outlined in the 1256 * {@link #isFocusableWindow} method. 1257 * <li> The window's property {@code autoRequestFocus} is of the 1258 * {@code true} value. 1259 * <li> Native windowing system allows the window to get focused. 1260 * </ul> 1261 * On platforms where the stacking order does not typically affect the focused 1262 * window, this method will <b>probably</b> leave the focused and active 1263 * Windows unchanged. 1264 * <p> 1265 * If this method causes this Window to be focused, and this Window is a 1266 * Frame or a Dialog, it will also become activated. If this Window is 1267 * focused, but it is not a Frame or a Dialog, then the first Frame or 1268 * Dialog that is an owner of this Window will be activated. 1269 * <p> 1270 * If this window is blocked by modal dialog, then the blocking dialog 1271 * is brought to the front and remains above the blocked window. 1272 * 1273 * @see #toBack 1274 * @see #setAutoRequestFocus 1275 * @see #isFocusableWindow 1276 */ 1277 public void toFront() { 1278 toFront_NoClientCode(); 1279 } 1280 1281 // This functionality is implemented in a final package-private method 1282 // to insure that it cannot be overridden by client subclasses. 1283 final void toFront_NoClientCode() { 1284 if (visible) { 1285 WindowPeer peer = (WindowPeer)this.peer; 1286 if (peer != null) { 1287 peer.toFront(); 1288 } 1289 if (isModalBlocked()) { 1290 modalBlocker.toFront_NoClientCode(); 1291 } 1292 } 1293 } 1294 1295 /** 1296 * If this Window is visible, sends this Window to the back and may cause 1297 * it to lose focus or activation if it is the focused or active Window. 1298 * <p> 1299 * Places this Window at the bottom of the stacking order and shows it 1300 * behind any other Windows in this VM. No action will take place is this 1301 * Window is not visible. Some platforms do not allow Windows which are 1302 * owned by other Windows to appear below their owners. Every attempt will 1303 * be made to move this Window as low as possible in the stacking order; 1304 * however, developers should not assume that this method will move this 1305 * Window below all other windows in every situation. 1306 * <p> 1307 * Because of variations in native windowing systems, no guarantees about 1308 * changes to the focused and active Windows can be made. Developers must 1309 * never assume that this Window is no longer the focused or active Window 1310 * until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED 1311 * event. On platforms where the top-most window is the focused window, 1312 * this method will <b>probably</b> cause this Window to lose focus. In 1313 * that case, the next highest, focusable Window in this VM will receive 1314 * focus. On platforms where the stacking order does not typically affect 1315 * the focused window, this method will <b>probably</b> leave the focused 1316 * and active Windows unchanged. 1317 * 1318 * @see #toFront 1319 */ 1320 public void toBack() { 1321 toBack_NoClientCode(); 1322 } 1323 1324 // This functionality is implemented in a final package-private method 1325 // to insure that it cannot be overridden by client subclasses. 1326 final void toBack_NoClientCode() { 1327 if(isAlwaysOnTop()) { 1328 try { 1329 setAlwaysOnTop(false); 1330 }catch(SecurityException e) { 1331 } 1332 } 1333 if (visible) { 1334 WindowPeer peer = (WindowPeer)this.peer; 1335 if (peer != null) { 1336 peer.toBack(); 1337 } 1338 } 1339 } 1340 1341 /** 1342 * Returns the toolkit of this frame. 1343 * @return the toolkit of this window. 1344 * @see Toolkit 1345 * @see Toolkit#getDefaultToolkit 1346 * @see Component#getToolkit 1347 */ 1348 public Toolkit getToolkit() { 1349 return Toolkit.getDefaultToolkit(); 1350 } 1351 1352 /** 1353 * Gets the warning string that is displayed with this window. 1354 * If this window is insecure, the warning string is displayed 1355 * somewhere in the visible area of the window. A window is 1356 * insecure if there is a security manager, and the security 1357 * manager's <code>checkTopLevelWindow</code> method returns 1358 * <code>false</code> when this window is passed to it as an 1359 * argument. 1360 * <p> 1361 * If the window is secure, then <code>getWarningString</code> 1362 * returns <code>null</code>. If the window is insecure, this 1363 * method checks for the system property 1364 * <code>awt.appletWarning</code> 1365 * and returns the string value of that property. 1366 * @return the warning string for this window. 1367 * @see java.lang.SecurityManager#checkTopLevelWindow(java.lang.Object) 1368 */ 1369 public final String getWarningString() { 1370 return warningString; 1371 } 1372 1373 private void setWarningString() { 1374 warningString = null; 1375 SecurityManager sm = System.getSecurityManager(); 1376 if (sm != null) { 1377 if (!sm.checkTopLevelWindow(this)) { 1378 // make sure the privileged action is only 1379 // for getting the property! We don't want the 1380 // above checkTopLevelWindow call to always succeed! 1381 warningString = (String) AccessController.doPrivileged( 1382 new GetPropertyAction("awt.appletWarning", 1383 "Java Applet Window")); 1384 } 1385 } 1386 } 1387 1388 /** 1389 * Gets the <code>Locale</code> object that is associated 1390 * with this window, if the locale has been set. 1391 * If no locale has been set, then the default locale 1392 * is returned. 1393 * @return the locale that is set for this window. 1394 * @see java.util.Locale 1395 * @since JDK1.1 1396 */ 1397 public Locale getLocale() { 1398 if (this.locale == null) { 1399 return Locale.getDefault(); 1400 } 1401 return this.locale; 1402 } 1403 1404 /** 1405 * Gets the input context for this window. A window always has an input context, 1406 * which is shared by subcomponents unless they create and set their own. 1407 * @see Component#getInputContext 1408 * @since 1.2 1409 */ 1410 public InputContext getInputContext() { 1411 synchronized (inputContextLock) { 1412 if (inputContext == null) { 1413 inputContext = InputContext.getInstance(); 1414 } 1415 } 1416 return inputContext; 1417 } 1418 1419 /** 1420 * Set the cursor image to a specified cursor. 1421 * <p> 1422 * The method may have no visual effect if the Java platform 1423 * implementation and/or the native system do not support 1424 * changing the mouse cursor shape. 1425 * @param cursor One of the constants defined 1426 * by the <code>Cursor</code> class. If this parameter is null 1427 * then the cursor for this window will be set to the type 1428 * Cursor.DEFAULT_CURSOR. 1429 * @see Component#getCursor 1430 * @see Cursor 1431 * @since JDK1.1 1432 */ 1433 public void setCursor(Cursor cursor) { 1434 if (cursor == null) { 1435 cursor = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR); 1436 } 1437 super.setCursor(cursor); 1438 } 1439 1440 /** 1441 * Returns the owner of this window. 1442 * @since 1.2 1443 */ 1444 public Window getOwner() { 1445 return getOwner_NoClientCode(); 1446 } 1447 final Window getOwner_NoClientCode() { 1448 return (Window)parent; 1449 } 1450 1451 /** 1452 * Return an array containing all the windows this 1453 * window currently owns. 1454 * @since 1.2 1455 */ 1456 public Window[] getOwnedWindows() { 1457 return getOwnedWindows_NoClientCode(); 1458 } 1459 final Window[] getOwnedWindows_NoClientCode() { 1460 Window realCopy[]; 1461 1462 synchronized(ownedWindowList) { 1463 // Recall that ownedWindowList is actually a Vector of 1464 // WeakReferences and calling get() on one of these references 1465 // may return null. Make two arrays-- one the size of the 1466 // Vector (fullCopy with size fullSize), and one the size of 1467 // all non-null get()s (realCopy with size realSize). 1468 int fullSize = ownedWindowList.size(); 1469 int realSize = 0; 1470 Window fullCopy[] = new Window[fullSize]; 1471 1472 for (int i = 0; i < fullSize; i++) { 1473 fullCopy[realSize] = ownedWindowList.elementAt(i).get(); 1474 1475 if (fullCopy[realSize] != null) { 1476 realSize++; 1477 } 1478 } 1479 1480 if (fullSize != realSize) { 1481 realCopy = Arrays.copyOf(fullCopy, realSize); 1482 } else { 1483 realCopy = fullCopy; 1484 } 1485 } 1486 1487 return realCopy; 1488 } 1489 1490 boolean isModalBlocked() { 1491 return modalBlocker != null; 1492 } 1493 1494 void setModalBlocked(Dialog blocker, boolean blocked, boolean peerCall) { 1495 this.modalBlocker = blocked ? blocker : null; 1496 if (peerCall) { 1497 WindowPeer peer = (WindowPeer)this.peer; 1498 if (peer != null) { 1499 peer.setModalBlocked(blocker, blocked); 1500 } 1501 } 1502 } 1503 1504 Dialog getModalBlocker() { 1505 return modalBlocker; 1506 } 1507 1508 /* 1509 * Returns a list of all displayable Windows, i. e. all the 1510 * Windows which peer is not null. 1511 * 1512 * @see #addNotify 1513 * @see #removeNotify 1514 */ 1515 static IdentityArrayList<Window> getAllWindows() { 1516 synchronized (allWindows) { 1517 IdentityArrayList<Window> v = new IdentityArrayList<Window>(); 1518 v.addAll(allWindows); 1519 return v; 1520 } 1521 } 1522 1523 static IdentityArrayList<Window> getAllUnblockedWindows() { 1524 synchronized (allWindows) { 1525 IdentityArrayList<Window> unblocked = new IdentityArrayList<Window>(); 1526 for (int i = 0; i < allWindows.size(); i++) { 1527 Window w = allWindows.get(i); 1528 if (!w.isModalBlocked()) { 1529 unblocked.add(w); 1530 } 1531 } 1532 return unblocked; 1533 } 1534 } 1535 1536 private static Window[] getWindows(AppContext appContext) { 1537 synchronized (Window.class) { 1538 Window realCopy[]; 1539 Vector<WeakReference<Window>> windowList = 1540 (Vector<WeakReference<Window>>)appContext.get(Window.class); 1541 if (windowList != null) { 1542 int fullSize = windowList.size(); 1543 int realSize = 0; 1544 Window fullCopy[] = new Window[fullSize]; 1545 for (int i = 0; i < fullSize; i++) { 1546 Window w = windowList.get(i).get(); 1547 if (w != null) { 1548 fullCopy[realSize++] = w; 1549 } 1550 } 1551 if (fullSize != realSize) { 1552 realCopy = Arrays.copyOf(fullCopy, realSize); 1553 } else { 1554 realCopy = fullCopy; 1555 } 1556 } else { 1557 realCopy = new Window[0]; 1558 } 1559 return realCopy; 1560 } 1561 } 1562 1563 /** 1564 * Returns an array of all {@code Window}s, both owned and ownerless, 1565 * created by this application. 1566 * If called from an applet, the array includes only the {@code Window}s 1567 * accessible by that applet. 1568 * <p> 1569 * <b>Warning:</b> this method may return system created windows, such 1570 * as a print dialog. Applications should not assume the existence of 1571 * these dialogs, nor should an application assume anything about these 1572 * dialogs such as component positions, <code>LayoutManager</code>s 1573 * or serialization. 1574 * 1575 * @see Frame#getFrames 1576 * @see Window#getOwnerlessWindows 1577 * 1578 * @since 1.6 1579 */ 1580 public static Window[] getWindows() { 1581 return getWindows(AppContext.getAppContext()); 1582 } 1583 1584 /** 1585 * Returns an array of all {@code Window}s created by this application 1586 * that have no owner. They include {@code Frame}s and ownerless 1587 * {@code Dialog}s and {@code Window}s. 1588 * If called from an applet, the array includes only the {@code Window}s 1589 * accessible by that applet. 1590 * <p> 1591 * <b>Warning:</b> this method may return system created windows, such 1592 * as a print dialog. Applications should not assume the existence of 1593 * these dialogs, nor should an application assume anything about these 1594 * dialogs such as component positions, <code>LayoutManager</code>s 1595 * or serialization. 1596 * 1597 * @see Frame#getFrames 1598 * @see Window#getWindows() 1599 * 1600 * @since 1.6 1601 */ 1602 public static Window[] getOwnerlessWindows() { 1603 Window[] allWindows = Window.getWindows(); 1604 1605 int ownerlessCount = 0; 1606 for (Window w : allWindows) { 1607 if (w.getOwner() == null) { 1608 ownerlessCount++; 1609 } 1610 } 1611 1612 Window[] ownerless = new Window[ownerlessCount]; 1613 int c = 0; 1614 for (Window w : allWindows) { 1615 if (w.getOwner() == null) { 1616 ownerless[c++] = w; 1617 } 1618 } 1619 1620 return ownerless; 1621 } 1622 1623 Window getDocumentRoot() { 1624 synchronized (getTreeLock()) { 1625 Window w = this; 1626 while (w.getOwner() != null) { 1627 w = w.getOwner(); 1628 } 1629 return w; 1630 } 1631 } 1632 1633 /** 1634 * Specifies the modal exclusion type for this window. If a window is modal 1635 * excluded, it is not blocked by some modal dialogs. See {@link 1636 * java.awt.Dialog.ModalExclusionType Dialog.ModalExclusionType} for 1637 * possible modal exclusion types. 1638 * <p> 1639 * If the given type is not supported, <code>NO_EXCLUDE</code> is used. 1640 * <p> 1641 * Note: changing the modal exclusion type for a visible window may have no 1642 * effect until it is hidden and then shown again. 1643 * 1644 * @param exclusionType the modal exclusion type for this window; a <code>null</code> 1645 * value is equivivalent to {@link Dialog.ModalExclusionType#NO_EXCLUDE 1646 * NO_EXCLUDE} 1647 * @throws SecurityException if the calling thread does not have permission 1648 * to set the modal exclusion property to the window with the given 1649 * <code>exclusionType</code> 1650 * @see java.awt.Dialog.ModalExclusionType 1651 * @see java.awt.Window#getModalExclusionType 1652 * @see java.awt.Toolkit#isModalExclusionTypeSupported 1653 * 1654 * @since 1.6 1655 */ 1656 public void setModalExclusionType(Dialog.ModalExclusionType exclusionType) { 1657 if (exclusionType == null) { 1658 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1659 } 1660 if (!Toolkit.getDefaultToolkit().isModalExclusionTypeSupported(exclusionType)) { 1661 exclusionType = Dialog.ModalExclusionType.NO_EXCLUDE; 1662 } 1663 if (modalExclusionType == exclusionType) { 1664 return; 1665 } 1666 if (exclusionType == Dialog.ModalExclusionType.TOOLKIT_EXCLUDE) { 1667 SecurityManager sm = System.getSecurityManager(); 1668 if (sm != null) { 1669 sm.checkPermission(SecurityConstants.AWT.TOOLKIT_MODALITY_PERMISSION); 1670 } 1671 } 1672 modalExclusionType = exclusionType; 1673 1674 // if we want on-fly changes, we need to uncomment the lines below 1675 // and override the method in Dialog to use modalShow() instead 1676 // of updateChildrenBlocking() 1677 /* 1678 if (isModalBlocked()) { 1679 modalBlocker.unblockWindow(this); 1680 } 1681 Dialog.checkShouldBeBlocked(this); 1682 updateChildrenBlocking(); 1683 */ 1684 } 1685 1686 /** 1687 * Returns the modal exclusion type of this window. 1688 * 1689 * @return the modal exclusion type of this window 1690 * 1691 * @see java.awt.Dialog.ModalExclusionType 1692 * @see java.awt.Window#setModalExclusionType 1693 * 1694 * @since 1.6 1695 */ 1696 public Dialog.ModalExclusionType getModalExclusionType() { 1697 return modalExclusionType; 1698 } 1699 1700 boolean isModalExcluded(Dialog.ModalExclusionType exclusionType) { 1701 if ((modalExclusionType != null) && 1702 modalExclusionType.compareTo(exclusionType) >= 0) 1703 { 1704 return true; 1705 } 1706 Window owner = getOwner_NoClientCode(); 1707 return (owner != null) && owner.isModalExcluded(exclusionType); 1708 } 1709 1710 void updateChildrenBlocking() { 1711 Vector<Window> childHierarchy = new Vector<Window>(); 1712 Window[] ownedWindows = getOwnedWindows(); 1713 for (int i = 0; i < ownedWindows.length; i++) { 1714 childHierarchy.add(ownedWindows[i]); 1715 } 1716 int k = 0; 1717 while (k < childHierarchy.size()) { 1718 Window w = childHierarchy.get(k); 1719 if (w.isVisible()) { 1720 if (w.isModalBlocked()) { 1721 Dialog blocker = w.getModalBlocker(); 1722 blocker.unblockWindow(w); 1723 } 1724 Dialog.checkShouldBeBlocked(w); 1725 Window[] wOwned = w.getOwnedWindows(); 1726 for (int j = 0; j < wOwned.length; j++) { 1727 childHierarchy.add(wOwned[j]); 1728 } 1729 } 1730 k++; 1731 } 1732 } 1733 1734 /** 1735 * Adds the specified window listener to receive window events from 1736 * this window. 1737 * If l is null, no exception is thrown and no action is performed. 1738 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1739 * >AWT Threading Issues</a> for details on AWT's threading model. 1740 * 1741 * @param l the window listener 1742 * @see #removeWindowListener 1743 * @see #getWindowListeners 1744 */ 1745 public synchronized void addWindowListener(WindowListener l) { 1746 if (l == null) { 1747 return; 1748 } 1749 newEventsOnly = true; 1750 windowListener = AWTEventMulticaster.add(windowListener, l); 1751 } 1752 1753 /** 1754 * Adds the specified window state listener to receive window 1755 * events from this window. If <code>l</code> is <code>null</code>, 1756 * no exception is thrown and no action is performed. 1757 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1758 * >AWT Threading Issues</a> for details on AWT's threading model. 1759 * 1760 * @param l the window state listener 1761 * @see #removeWindowStateListener 1762 * @see #getWindowStateListeners 1763 * @since 1.4 1764 */ 1765 public synchronized void addWindowStateListener(WindowStateListener l) { 1766 if (l == null) { 1767 return; 1768 } 1769 windowStateListener = AWTEventMulticaster.add(windowStateListener, l); 1770 newEventsOnly = true; 1771 } 1772 1773 /** 1774 * Adds the specified window focus listener to receive window events 1775 * from this window. 1776 * If l is null, 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 focus listener 1781 * @see #removeWindowFocusListener 1782 * @see #getWindowFocusListeners 1783 * @since 1.4 1784 */ 1785 public synchronized void addWindowFocusListener(WindowFocusListener l) { 1786 if (l == null) { 1787 return; 1788 } 1789 windowFocusListener = AWTEventMulticaster.add(windowFocusListener, l); 1790 newEventsOnly = true; 1791 } 1792 1793 /** 1794 * Removes the specified window listener so that it no longer 1795 * receives window events 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 listener 1801 * @see #addWindowListener 1802 * @see #getWindowListeners 1803 */ 1804 public synchronized void removeWindowListener(WindowListener l) { 1805 if (l == null) { 1806 return; 1807 } 1808 windowListener = AWTEventMulticaster.remove(windowListener, l); 1809 } 1810 1811 /** 1812 * Removes the specified window state listener so that it no 1813 * longer receives window events from this window. If 1814 * <code>l</code> is <code>null</code>, no exception is thrown and 1815 * no action is performed. 1816 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1817 * >AWT Threading Issues</a> for details on AWT's threading model. 1818 * 1819 * @param l the window state listener 1820 * @see #addWindowStateListener 1821 * @see #getWindowStateListeners 1822 * @since 1.4 1823 */ 1824 public synchronized void removeWindowStateListener(WindowStateListener l) { 1825 if (l == null) { 1826 return; 1827 } 1828 windowStateListener = AWTEventMulticaster.remove(windowStateListener, l); 1829 } 1830 1831 /** 1832 * Removes the specified window focus listener so that it no longer 1833 * receives window events from this window. 1834 * If l is null, no exception is thrown and no action is performed. 1835 * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" 1836 * >AWT Threading Issues</a> for details on AWT's threading model. 1837 * 1838 * @param l the window focus listener 1839 * @see #addWindowFocusListener 1840 * @see #getWindowFocusListeners 1841 * @since 1.4 1842 */ 1843 public synchronized void removeWindowFocusListener(WindowFocusListener l) { 1844 if (l == null) { 1845 return; 1846 } 1847 windowFocusListener = AWTEventMulticaster.remove(windowFocusListener, l); 1848 } 1849 1850 /** 1851 * Returns an array of all the window listeners 1852 * registered on this window. 1853 * 1854 * @return all of this window's <code>WindowListener</code>s 1855 * or an empty array if no window 1856 * listeners are currently registered 1857 * 1858 * @see #addWindowListener 1859 * @see #removeWindowListener 1860 * @since 1.4 1861 */ 1862 public synchronized WindowListener[] getWindowListeners() { 1863 return (WindowListener[])(getListeners(WindowListener.class)); 1864 } 1865 1866 /** 1867 * Returns an array of all the window focus listeners 1868 * registered on this window. 1869 * 1870 * @return all of this window's <code>WindowFocusListener</code>s 1871 * or an empty array if no window focus 1872 * listeners are currently registered 1873 * 1874 * @see #addWindowFocusListener 1875 * @see #removeWindowFocusListener 1876 * @since 1.4 1877 */ 1878 public synchronized WindowFocusListener[] getWindowFocusListeners() { 1879 return (WindowFocusListener[])(getListeners(WindowFocusListener.class)); 1880 } 1881 1882 /** 1883 * Returns an array of all the window state listeners 1884 * registered on this window. 1885 * 1886 * @return all of this window's <code>WindowStateListener</code>s 1887 * or an empty array if no window state 1888 * listeners are currently registered 1889 * 1890 * @see #addWindowStateListener 1891 * @see #removeWindowStateListener 1892 * @since 1.4 1893 */ 1894 public synchronized WindowStateListener[] getWindowStateListeners() { 1895 return (WindowStateListener[])(getListeners(WindowStateListener.class)); 1896 } 1897 1898 1899 /** 1900 * Returns an array of all the objects currently registered 1901 * as <code><em>Foo</em>Listener</code>s 1902 * upon this <code>Window</code>. 1903 * <code><em>Foo</em>Listener</code>s are registered using the 1904 * <code>add<em>Foo</em>Listener</code> method. 1905 * 1906 * <p> 1907 * 1908 * You can specify the <code>listenerType</code> argument 1909 * with a class literal, such as 1910 * <code><em>Foo</em>Listener.class</code>. 1911 * For example, you can query a 1912 * <code>Window</code> <code>w</code> 1913 * for its window listeners with the following code: 1914 * 1915 * <pre>WindowListener[] wls = (WindowListener[])(w.getListeners(WindowListener.class));</pre> 1916 * 1917 * If no such listeners exist, this method returns an empty array. 1918 * 1919 * @param listenerType the type of listeners requested; this parameter 1920 * should specify an interface that descends from 1921 * <code>java.util.EventListener</code> 1922 * @return an array of all objects registered as 1923 * <code><em>Foo</em>Listener</code>s on this window, 1924 * or an empty array if no such 1925 * listeners have been added 1926 * @exception ClassCastException if <code>listenerType</code> 1927 * doesn't specify a class or interface that implements 1928 * <code>java.util.EventListener</code> 1929 * @exception NullPointerException if {@code listenerType} is {@code null} 1930 * 1931 * @see #getWindowListeners 1932 * @since 1.3 1933 */ 1934 public <T extends EventListener> T[] getListeners(Class<T> listenerType) { 1935 EventListener l = null; 1936 if (listenerType == WindowFocusListener.class) { 1937 l = windowFocusListener; 1938 } else if (listenerType == WindowStateListener.class) { 1939 l = windowStateListener; 1940 } else if (listenerType == WindowListener.class) { 1941 l = windowListener; 1942 } else { 1943 return super.getListeners(listenerType); 1944 } 1945 return AWTEventMulticaster.getListeners(l, listenerType); 1946 } 1947 1948 // REMIND: remove when filtering is handled at lower level 1949 boolean eventEnabled(AWTEvent e) { 1950 switch(e.id) { 1951 case WindowEvent.WINDOW_OPENED: 1952 case WindowEvent.WINDOW_CLOSING: 1953 case WindowEvent.WINDOW_CLOSED: 1954 case WindowEvent.WINDOW_ICONIFIED: 1955 case WindowEvent.WINDOW_DEICONIFIED: 1956 case WindowEvent.WINDOW_ACTIVATED: 1957 case WindowEvent.WINDOW_DEACTIVATED: 1958 if ((eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 || 1959 windowListener != null) { 1960 return true; 1961 } 1962 return false; 1963 case WindowEvent.WINDOW_GAINED_FOCUS: 1964 case WindowEvent.WINDOW_LOST_FOCUS: 1965 if ((eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 || 1966 windowFocusListener != null) { 1967 return true; 1968 } 1969 return false; 1970 case WindowEvent.WINDOW_STATE_CHANGED: 1971 if ((eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 || 1972 windowStateListener != null) { 1973 return true; 1974 } 1975 return false; 1976 default: 1977 break; 1978 } 1979 return super.eventEnabled(e); 1980 } 1981 1982 /** 1983 * Processes events on this window. If the event is an 1984 * <code>WindowEvent</code>, it invokes the 1985 * <code>processWindowEvent</code> method, else it invokes its 1986 * superclass's <code>processEvent</code>. 1987 * <p>Note that if the event parameter is <code>null</code> 1988 * the behavior is unspecified and may result in an 1989 * exception. 1990 * 1991 * @param e the event 1992 */ 1993 protected void processEvent(AWTEvent e) { 1994 if (e instanceof WindowEvent) { 1995 switch (e.getID()) { 1996 case WindowEvent.WINDOW_OPENED: 1997 case WindowEvent.WINDOW_CLOSING: 1998 case WindowEvent.WINDOW_CLOSED: 1999 case WindowEvent.WINDOW_ICONIFIED: 2000 case WindowEvent.WINDOW_DEICONIFIED: 2001 case WindowEvent.WINDOW_ACTIVATED: 2002 case WindowEvent.WINDOW_DEACTIVATED: 2003 processWindowEvent((WindowEvent)e); 2004 break; 2005 case WindowEvent.WINDOW_GAINED_FOCUS: 2006 case WindowEvent.WINDOW_LOST_FOCUS: 2007 processWindowFocusEvent((WindowEvent)e); 2008 break; 2009 case WindowEvent.WINDOW_STATE_CHANGED: 2010 processWindowStateEvent((WindowEvent)e); 2011 default: 2012 break; 2013 } 2014 return; 2015 } 2016 super.processEvent(e); 2017 } 2018 2019 /** 2020 * Processes window events occurring on this window by 2021 * dispatching them to any registered WindowListener objects. 2022 * NOTE: This method will not be called unless window events 2023 * are enabled for this component; this happens when one of the 2024 * following occurs: 2025 * <ul> 2026 * <li>A WindowListener object is registered via 2027 * <code>addWindowListener</code> 2028 * <li>Window events are enabled via <code>enableEvents</code> 2029 * </ul> 2030 * <p>Note that if the event parameter is <code>null</code> 2031 * the behavior is unspecified and may result in an 2032 * exception. 2033 * 2034 * @param e the window event 2035 * @see Component#enableEvents 2036 */ 2037 protected void processWindowEvent(WindowEvent e) { 2038 WindowListener listener = windowListener; 2039 if (listener != null) { 2040 switch(e.getID()) { 2041 case WindowEvent.WINDOW_OPENED: 2042 listener.windowOpened(e); 2043 break; 2044 case WindowEvent.WINDOW_CLOSING: 2045 listener.windowClosing(e); 2046 break; 2047 case WindowEvent.WINDOW_CLOSED: 2048 listener.windowClosed(e); 2049 break; 2050 case WindowEvent.WINDOW_ICONIFIED: 2051 listener.windowIconified(e); 2052 break; 2053 case WindowEvent.WINDOW_DEICONIFIED: 2054 listener.windowDeiconified(e); 2055 break; 2056 case WindowEvent.WINDOW_ACTIVATED: 2057 listener.windowActivated(e); 2058 break; 2059 case WindowEvent.WINDOW_DEACTIVATED: 2060 listener.windowDeactivated(e); 2061 break; 2062 default: 2063 break; 2064 } 2065 } 2066 } 2067 2068 /** 2069 * Processes window focus event occuring on this window by 2070 * dispatching them to any registered WindowFocusListener objects. 2071 * NOTE: this method will not be called unless window focus events 2072 * are enabled for this window. This happens when one of the 2073 * following occurs: 2074 * <ul> 2075 * <li>a WindowFocusListener is registered via 2076 * <code>addWindowFocusListener</code> 2077 * <li>Window focus events are enabled via <code>enableEvents</code> 2078 * </ul> 2079 * <p>Note that if the event parameter is <code>null</code> 2080 * the behavior is unspecified and may result in an 2081 * exception. 2082 * 2083 * @param e the window focus event 2084 * @see Component#enableEvents 2085 * @since 1.4 2086 */ 2087 protected void processWindowFocusEvent(WindowEvent e) { 2088 WindowFocusListener listener = windowFocusListener; 2089 if (listener != null) { 2090 switch (e.getID()) { 2091 case WindowEvent.WINDOW_GAINED_FOCUS: 2092 listener.windowGainedFocus(e); 2093 break; 2094 case WindowEvent.WINDOW_LOST_FOCUS: 2095 listener.windowLostFocus(e); 2096 break; 2097 default: 2098 break; 2099 } 2100 } 2101 } 2102 2103 /** 2104 * Processes window state event occuring on this window by 2105 * dispatching them to any registered <code>WindowStateListener</code> 2106 * objects. 2107 * NOTE: this method will not be called unless window state events 2108 * are enabled for this window. This happens when one of the 2109 * following occurs: 2110 * <ul> 2111 * <li>a <code>WindowStateListener</code> is registered via 2112 * <code>addWindowStateListener</code> 2113 * <li>window state events are enabled via <code>enableEvents</code> 2114 * </ul> 2115 * <p>Note that if the event parameter is <code>null</code> 2116 * the behavior is unspecified and may result in an 2117 * exception. 2118 * 2119 * @param e the window state event 2120 * @see java.awt.Component#enableEvents 2121 * @since 1.4 2122 */ 2123 protected void processWindowStateEvent(WindowEvent e) { 2124 WindowStateListener listener = windowStateListener; 2125 if (listener != null) { 2126 switch (e.getID()) { 2127 case WindowEvent.WINDOW_STATE_CHANGED: 2128 listener.windowStateChanged(e); 2129 break; 2130 default: 2131 break; 2132 } 2133 } 2134 } 2135 2136 /** 2137 * Implements a debugging hook -- checks to see if 2138 * the user has typed <i>control-shift-F1</i>. If so, 2139 * the list of child windows is dumped to <code>System.out</code>. 2140 * @param e the keyboard event 2141 */ 2142 void preProcessKeyEvent(KeyEvent e) { 2143 // Dump the list of child windows to System.out. 2144 if (e.isActionKey() && e.getKeyCode() == KeyEvent.VK_F1 && 2145 e.isControlDown() && e.isShiftDown() && 2146 e.getID() == KeyEvent.KEY_PRESSED) { 2147 list(System.out, 0); 2148 } 2149 } 2150 2151 void postProcessKeyEvent(KeyEvent e) { 2152 // Do nothing 2153 } 2154 2155 2156 /** 2157 * Sets whether this window should always be above other windows. If 2158 * there are multiple always-on-top windows, their relative order is 2159 * unspecified and platform dependent. 2160 * <p> 2161 * If some other window is already always-on-top then the 2162 * relative order between these windows is unspecified (depends on 2163 * platform). No window can be brought to be over the always-on-top 2164 * window except maybe another always-on-top window. 2165 * <p> 2166 * All windows owned by an always-on-top window inherit this state and 2167 * automatically become always-on-top. If a window ceases to be 2168 * always-on-top, the windows that it owns will no longer be 2169 * always-on-top. When an always-on-top window is sent {@link #toBack 2170 * toBack}, its always-on-top state is set to <code>false</code>. 2171 * 2172 * <p> When this method is called on a window with a value of 2173 * <code>true</code>, and the window is visible and the platform 2174 * supports always-on-top for this window, the window is immediately 2175 * brought forward, "sticking" it in the top-most position. If the 2176 * window isn`t currently visible, this method sets the always-on-top 2177 * state to <code>true</code> but does not bring the window forward. 2178 * When the window is later shown, it will be always-on-top. 2179 * 2180 * <p> When this method is called on a window with a value of 2181 * <code>false</code> the always-on-top state is set to normal. The 2182 * window remains in the top-most position but it`s z-order can be 2183 * changed as for any other window. Calling this method with a value 2184 * of <code>false</code> on a window that has a normal state has no 2185 * effect. Setting the always-on-top state to false has no effect on 2186 * the relative z-order of the windows if there are no other 2187 * always-on-top windows. 2188 * 2189 * <p><b>Note</b>: some platforms might not support always-on-top 2190 * windows. To detect if always-on-top windows are supported by the 2191 * current platform, use {@link Toolkit#isAlwaysOnTopSupported()} and 2192 * {@link Window#isAlwaysOnTopSupported()}. If always-on-top mode 2193 * isn't supported by the toolkit or for this window, calling this 2194 * method has no effect. 2195 * <p> 2196 * If a SecurityManager is installed, the calling thread must be 2197 * granted the AWTPermission "setWindowAlwaysOnTop" in 2198 * order to set the value of this property. If this 2199 * permission is not granted, this method will throw a 2200 * SecurityException, and the current value of the property will 2201 * be left unchanged. 2202 * 2203 * @param alwaysOnTop true if the window should always be above other 2204 * windows 2205 * @throws SecurityException if the calling thread does not have 2206 * permission to set the value of always-on-top property 2207 * @see #isAlwaysOnTop 2208 * @see #toFront 2209 * @see #toBack 2210 * @see AWTPermission 2211 * @see #isAlwaysOnTopSupported 2212 * @see Toolkit#isAlwaysOnTopSupported 2213 * @since 1.5 2214 */ 2215 public final void setAlwaysOnTop(boolean alwaysOnTop) throws SecurityException { 2216 SecurityManager security = System.getSecurityManager(); 2217 if (security != null) { 2218 security.checkPermission(SecurityConstants.AWT.SET_WINDOW_ALWAYS_ON_TOP_PERMISSION); 2219 } 2220 2221 boolean oldAlwaysOnTop; 2222 synchronized(this) { 2223 oldAlwaysOnTop = this.alwaysOnTop; 2224 this.alwaysOnTop = alwaysOnTop; 2225 } 2226 if (oldAlwaysOnTop != alwaysOnTop ) { 2227 if (isAlwaysOnTopSupported()) { 2228 WindowPeer peer = (WindowPeer)this.peer; 2229 synchronized(getTreeLock()) { 2230 if (peer != null) { 2231 peer.setAlwaysOnTop(alwaysOnTop); 2232 } 2233 } 2234 } 2235 firePropertyChange("alwaysOnTop", oldAlwaysOnTop, alwaysOnTop); 2236 } 2237 } 2238 2239 /** 2240 * Returns whether the always-on-top mode is supported for this 2241 * window. Some platforms may not support always-on-top windows, some 2242 * may support only some kinds of top-level windows; for example, 2243 * a platform may not support always-on-top modal dialogs. 2244 * @return <code>true</code>, if the always-on-top mode is 2245 * supported by the toolkit and for this window, 2246 * <code>false</code>, if always-on-top mode is not supported 2247 * for this window or toolkit doesn't support always-on-top windows. 2248 * @see #setAlwaysOnTop(boolean) 2249 * @see Toolkit#isAlwaysOnTopSupported 2250 * @since 1.6 2251 */ 2252 public boolean isAlwaysOnTopSupported() { 2253 return Toolkit.getDefaultToolkit().isAlwaysOnTopSupported(); 2254 } 2255 2256 2257 /** 2258 * Returns whether this window is an always-on-top window. 2259 * @return <code>true</code>, if the window is in always-on-top state, 2260 * <code>false</code> otherwise 2261 * @see #setAlwaysOnTop 2262 * @since 1.5 2263 */ 2264 public final boolean isAlwaysOnTop() { 2265 return alwaysOnTop; 2266 } 2267 2268 2269 /** 2270 * Returns the child Component of this Window that has focus if this Window 2271 * is focused; returns null otherwise. 2272 * 2273 * @return the child Component with focus, or null if this Window is not 2274 * focused 2275 * @see #getMostRecentFocusOwner 2276 * @see #isFocused 2277 */ 2278 public Component getFocusOwner() { 2279 return (isFocused()) 2280 ? KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2281 getFocusOwner() 2282 : null; 2283 } 2284 2285 /** 2286 * Returns the child Component of this Window that will receive the focus 2287 * when this Window is focused. If this Window is currently focused, this 2288 * method returns the same Component as <code>getFocusOwner()</code>. If 2289 * this Window is not focused, then the child Component that most recently 2290 * requested focus will be returned. If no child Component has ever 2291 * requested focus, and this is a focusable Window, then this Window's 2292 * initial focusable Component is returned. If no child Component has ever 2293 * requested focus, and this is a non-focusable Window, null is returned. 2294 * 2295 * @return the child Component that will receive focus when this Window is 2296 * focused 2297 * @see #getFocusOwner 2298 * @see #isFocused 2299 * @see #isFocusableWindow 2300 * @since 1.4 2301 */ 2302 public Component getMostRecentFocusOwner() { 2303 if (isFocused()) { 2304 return getFocusOwner(); 2305 } else { 2306 Component mostRecent = 2307 KeyboardFocusManager.getMostRecentFocusOwner(this); 2308 if (mostRecent != null) { 2309 return mostRecent; 2310 } else { 2311 return (isFocusableWindow()) 2312 ? getFocusTraversalPolicy().getInitialComponent(this) 2313 : null; 2314 } 2315 } 2316 } 2317 2318 /** 2319 * Returns whether this Window is active. Only a Frame or a Dialog may be 2320 * active. The native windowing system may denote the active Window or its 2321 * children with special decorations, such as a highlighted title bar. The 2322 * active Window is always either the focused Window, or the first Frame or 2323 * Dialog that is an owner of the focused Window. 2324 * 2325 * @return whether this is the active Window. 2326 * @see #isFocused 2327 * @since 1.4 2328 */ 2329 public boolean isActive() { 2330 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2331 getActiveWindow() == this); 2332 } 2333 2334 /** 2335 * Returns whether this Window is focused. If there exists a focus owner, 2336 * the focused Window is the Window that is, or contains, that focus owner. 2337 * If there is no focus owner, then no Window is focused. 2338 * <p> 2339 * If the focused Window is a Frame or a Dialog it is also the active 2340 * Window. Otherwise, the active Window is the first Frame or Dialog that 2341 * is an owner of the focused Window. 2342 * 2343 * @return whether this is the focused Window. 2344 * @see #isActive 2345 * @since 1.4 2346 */ 2347 public boolean isFocused() { 2348 return (KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2349 getGlobalFocusedWindow() == this); 2350 } 2351 2352 /** 2353 * Gets a focus traversal key for this Window. (See <code> 2354 * setFocusTraversalKeys</code> for a full description of each key.) 2355 * <p> 2356 * If the traversal key has not been explicitly set for this Window, 2357 * then this Window's parent's traversal key is returned. If the 2358 * traversal key has not been explicitly set for any of this Window's 2359 * ancestors, then the current KeyboardFocusManager's default traversal key 2360 * is returned. 2361 * 2362 * @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2363 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2364 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2365 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2366 * @return the AWTKeyStroke for the specified key 2367 * @see Container#setFocusTraversalKeys 2368 * @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS 2369 * @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS 2370 * @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS 2371 * @see KeyboardFocusManager#DOWN_CYCLE_TRAVERSAL_KEYS 2372 * @throws IllegalArgumentException if id is not one of 2373 * KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, 2374 * KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, 2375 * KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or 2376 * KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS 2377 * @since 1.4 2378 */ 2379 public Set<AWTKeyStroke> getFocusTraversalKeys(int id) { 2380 if (id < 0 || id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH) { 2381 throw new IllegalArgumentException("invalid focus traversal key identifier"); 2382 } 2383 2384 // Okay to return Set directly because it is an unmodifiable view 2385 Set keystrokes = (focusTraversalKeys != null) 2386 ? focusTraversalKeys[id] 2387 : null; 2388 2389 if (keystrokes != null) { 2390 return keystrokes; 2391 } else { 2392 return KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2393 getDefaultFocusTraversalKeys(id); 2394 } 2395 } 2396 2397 /** 2398 * Does nothing because Windows must always be roots of a focus traversal 2399 * cycle. The passed-in value is ignored. 2400 * 2401 * @param focusCycleRoot this value is ignored 2402 * @see #isFocusCycleRoot 2403 * @see Container#setFocusTraversalPolicy 2404 * @see Container#getFocusTraversalPolicy 2405 * @since 1.4 2406 */ 2407 public final void setFocusCycleRoot(boolean focusCycleRoot) { 2408 } 2409 2410 /** 2411 * Always returns <code>true</code> because all Windows must be roots of a 2412 * focus traversal cycle. 2413 * 2414 * @return <code>true</code> 2415 * @see #setFocusCycleRoot 2416 * @see Container#setFocusTraversalPolicy 2417 * @see Container#getFocusTraversalPolicy 2418 * @since 1.4 2419 */ 2420 public final boolean isFocusCycleRoot() { 2421 return true; 2422 } 2423 2424 /** 2425 * Always returns <code>null</code> because Windows have no ancestors; they 2426 * represent the top of the Component hierarchy. 2427 * 2428 * @return <code>null</code> 2429 * @see Container#isFocusCycleRoot() 2430 * @since 1.4 2431 */ 2432 public final Container getFocusCycleRootAncestor() { 2433 return null; 2434 } 2435 2436 /** 2437 * Returns whether this Window can become the focused Window, that is, 2438 * whether this Window or any of its subcomponents can become the focus 2439 * owner. For a Frame or Dialog to be focusable, its focusable Window state 2440 * must be set to <code>true</code>. For a Window which is not a Frame or 2441 * Dialog to be focusable, its focusable Window state must be set to 2442 * <code>true</code>, its nearest owning Frame or Dialog must be 2443 * showing on the screen, and it must contain at least one Component in 2444 * its focus traversal cycle. If any of these conditions is not met, then 2445 * neither this Window nor any of its subcomponents can become the focus 2446 * owner. 2447 * 2448 * @return <code>true</code> if this Window can be the focused Window; 2449 * <code>false</code> otherwise 2450 * @see #getFocusableWindowState 2451 * @see #setFocusableWindowState 2452 * @see #isShowing 2453 * @see Component#isFocusable 2454 * @since 1.4 2455 */ 2456 public final boolean isFocusableWindow() { 2457 // If a Window/Frame/Dialog was made non-focusable, then it is always 2458 // non-focusable. 2459 if (!getFocusableWindowState()) { 2460 return false; 2461 } 2462 2463 // All other tests apply only to Windows. 2464 if (this instanceof Frame || this instanceof Dialog) { 2465 return true; 2466 } 2467 2468 // A Window must have at least one Component in its root focus 2469 // traversal cycle to be focusable. 2470 if (getFocusTraversalPolicy().getDefaultComponent(this) == null) { 2471 return false; 2472 } 2473 2474 // A Window's nearest owning Frame or Dialog must be showing on the 2475 // screen. 2476 for (Window owner = getOwner(); owner != null; 2477 owner = owner.getOwner()) 2478 { 2479 if (owner instanceof Frame || owner instanceof Dialog) { 2480 return owner.isShowing(); 2481 } 2482 } 2483 2484 return false; 2485 } 2486 2487 /** 2488 * Returns whether this Window can become the focused Window if it meets 2489 * the other requirements outlined in <code>isFocusableWindow</code>. If 2490 * this method returns <code>false</code>, then 2491 * <code>isFocusableWindow</code> will return <code>false</code> as well. 2492 * If this method returns <code>true</code>, then 2493 * <code>isFocusableWindow</code> may return <code>true</code> or 2494 * <code>false</code> depending upon the other requirements which must be 2495 * met in order for a Window to be focusable. 2496 * <p> 2497 * By default, all Windows have a focusable Window state of 2498 * <code>true</code>. 2499 * 2500 * @return whether this Window can be the focused Window 2501 * @see #isFocusableWindow 2502 * @see #setFocusableWindowState 2503 * @see #isShowing 2504 * @see Component#setFocusable 2505 * @since 1.4 2506 */ 2507 public boolean getFocusableWindowState() { 2508 return focusableWindowState; 2509 } 2510 2511 /** 2512 * Sets whether this Window can become the focused Window if it meets 2513 * the other requirements outlined in <code>isFocusableWindow</code>. If 2514 * this Window's focusable Window state is set to <code>false</code>, then 2515 * <code>isFocusableWindow</code> will return <code>false</code>. If this 2516 * Window's focusable Window state is set to <code>true</code>, then 2517 * <code>isFocusableWindow</code> may return <code>true</code> or 2518 * <code>false</code> depending upon the other requirements which must be 2519 * met in order for a Window to be focusable. 2520 * <p> 2521 * Setting a Window's focusability state to <code>false</code> is the 2522 * standard mechanism for an application to identify to the AWT a Window 2523 * which will be used as a floating palette or toolbar, and thus should be 2524 * a non-focusable Window. 2525 * 2526 * Setting the focusability state on a visible <code>Window</code> 2527 * can have a delayed effect on some platforms — the actual 2528 * change may happen only when the <code>Window</code> becomes 2529 * hidden and then visible again. To ensure consistent behavior 2530 * across platforms, set the <code>Window</code>'s focusable state 2531 * when the <code>Window</code> is invisible and then show it. 2532 * 2533 * @param focusableWindowState whether this Window can be the focused 2534 * Window 2535 * @see #isFocusableWindow 2536 * @see #getFocusableWindowState 2537 * @see #isShowing 2538 * @see Component#setFocusable 2539 * @since 1.4 2540 */ 2541 public void setFocusableWindowState(boolean focusableWindowState) { 2542 boolean oldFocusableWindowState; 2543 synchronized (this) { 2544 oldFocusableWindowState = this.focusableWindowState; 2545 this.focusableWindowState = focusableWindowState; 2546 } 2547 WindowPeer peer = (WindowPeer)this.peer; 2548 if (peer != null) { 2549 peer.updateFocusableWindowState(); 2550 } 2551 firePropertyChange("focusableWindowState", oldFocusableWindowState, 2552 focusableWindowState); 2553 if (oldFocusableWindowState && !focusableWindowState && isFocused()) { 2554 for (Window owner = getOwner(); 2555 owner != null; 2556 owner = owner.getOwner()) 2557 { 2558 Component toFocus = 2559 KeyboardFocusManager.getMostRecentFocusOwner(owner); 2560 if (toFocus != null && toFocus.requestFocus(false, CausedFocusEvent.Cause.ACTIVATION)) { 2561 return; 2562 } 2563 } 2564 KeyboardFocusManager.getCurrentKeyboardFocusManager(). 2565 clearGlobalFocusOwner(); 2566 } 2567 } 2568 2569 /** 2570 * Sets whether this window should receive focus on 2571 * subsequently being shown (with a call to {@link #setVisible setVisible(true)}), 2572 * or being moved to the front (with a call to {@link #toFront}). 2573 * <p> 2574 * Note that {@link #setVisible setVisible(true)} may be called indirectly 2575 * (e.g. when showing an owner of the window makes the window to be shown). 2576 * {@link #toFront} may also be called indirectly (e.g. when 2577 * {@link #setVisible setVisible(true)} is called on already visible window). 2578 * In all such cases this property takes effect as well. 2579 * <p> 2580 * The value of the property is not inherited by owned windows. 2581 * 2582 * @param autoRequestFocus whether this window should be focused on 2583 * subsequently being shown or being moved to the front 2584 * @see #isAutoRequestFocus 2585 * @see #isFocusableWindow 2586 * @see #setVisible 2587 * @see #toFront 2588 * @since 1.7 2589 */ 2590 public void setAutoRequestFocus(boolean autoRequestFocus) { 2591 this.autoRequestFocus = autoRequestFocus; 2592 } 2593 2594 /** 2595 * Returns whether this window should receive focus on subsequently being shown 2596 * (with a call to {@link #setVisible setVisible(true)}), or being moved to the front 2597 * (with a call to {@link #toFront}). 2598 * <p> 2599 * By default, the window has {@code autoRequestFocus} value of {@code true}. 2600 * 2601 * @return {@code autoRequestFocus} value 2602 * @see #setAutoRequestFocus 2603 * @since 1.7 2604 */ 2605 public boolean isAutoRequestFocus() { 2606 return autoRequestFocus; 2607 } 2608 2609 /** 2610 * Adds a PropertyChangeListener to the listener list. The listener is 2611 * registered for all bound properties of this class, including the 2612 * following: 2613 * <ul> 2614 * <li>this Window's font ("font")</li> 2615 * <li>this Window's background color ("background")</li> 2616 * <li>this Window's foreground color ("foreground")</li> 2617 * <li>this Window's focusability ("focusable")</li> 2618 * <li>this Window's focus traversal keys enabled state 2619 * ("focusTraversalKeysEnabled")</li> 2620 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2621 * ("forwardFocusTraversalKeys")</li> 2622 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2623 * ("backwardFocusTraversalKeys")</li> 2624 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2625 * ("upCycleFocusTraversalKeys")</li> 2626 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2627 * ("downCycleFocusTraversalKeys")</li> 2628 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2629 * </li> 2630 * <li>this Window's focusable Window state ("focusableWindowState") 2631 * </li> 2632 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2633 * </ul> 2634 * Note that if this Window is inheriting a bound property, then no 2635 * event will be fired in response to a change in the inherited property. 2636 * <p> 2637 * If listener is null, no exception is thrown and no action is performed. 2638 * 2639 * @param listener the PropertyChangeListener to be added 2640 * 2641 * @see Component#removePropertyChangeListener 2642 * @see #addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener) 2643 */ 2644 public void addPropertyChangeListener(PropertyChangeListener listener) { 2645 super.addPropertyChangeListener(listener); 2646 } 2647 2648 /** 2649 * Adds a PropertyChangeListener to the listener list for a specific 2650 * property. The specified property may be user-defined, or one of the 2651 * following: 2652 * <ul> 2653 * <li>this Window's font ("font")</li> 2654 * <li>this Window's background color ("background")</li> 2655 * <li>this Window's foreground color ("foreground")</li> 2656 * <li>this Window's focusability ("focusable")</li> 2657 * <li>this Window's focus traversal keys enabled state 2658 * ("focusTraversalKeysEnabled")</li> 2659 * <li>this Window's Set of FORWARD_TRAVERSAL_KEYS 2660 * ("forwardFocusTraversalKeys")</li> 2661 * <li>this Window's Set of BACKWARD_TRAVERSAL_KEYS 2662 * ("backwardFocusTraversalKeys")</li> 2663 * <li>this Window's Set of UP_CYCLE_TRAVERSAL_KEYS 2664 * ("upCycleFocusTraversalKeys")</li> 2665 * <li>this Window's Set of DOWN_CYCLE_TRAVERSAL_KEYS 2666 * ("downCycleFocusTraversalKeys")</li> 2667 * <li>this Window's focus traversal policy ("focusTraversalPolicy") 2668 * </li> 2669 * <li>this Window's focusable Window state ("focusableWindowState") 2670 * </li> 2671 * <li>this Window's always-on-top state("alwaysOnTop")</li> 2672 * </ul> 2673 * Note that if this Window is inheriting a bound property, then no 2674 * event will be fired in response to a change in the inherited property. 2675 * <p> 2676 * If listener is null, no exception is thrown and no action is performed. 2677 * 2678 * @param propertyName one of the property names listed above 2679 * @param listener the PropertyChangeListener to be added 2680 * 2681 * @see #addPropertyChangeListener(java.beans.PropertyChangeListener) 2682 * @see Component#removePropertyChangeListener 2683 */ 2684 public void addPropertyChangeListener(String propertyName, 2685 PropertyChangeListener listener) { 2686 super.addPropertyChangeListener(propertyName, listener); 2687 } 2688 2689 /** 2690 * Indicates if this container is a validate root. 2691 * <p> 2692 * {@code Window} objects are the validate roots, and, therefore, they 2693 * override this method to return {@code true}. 2694 * 2695 * @return {@code true} 2696 * @since 1.7 2697 * @see java.awt.Container#isValidateRoot 2698 */ 2699 @Override 2700 public boolean isValidateRoot() { 2701 return true; 2702 } 2703 2704 /** 2705 * Dispatches an event to this window or one of its sub components. 2706 * @param e the event 2707 */ 2708 void dispatchEventImpl(AWTEvent e) { 2709 if (e.getID() == ComponentEvent.COMPONENT_RESIZED) { 2710 invalidate(); 2711 validate(); 2712 } 2713 super.dispatchEventImpl(e); 2714 } 2715 2716 /** 2717 * @deprecated As of JDK version 1.1 2718 * replaced by <code>dispatchEvent(AWTEvent)</code>. 2719 */ 2720 @Deprecated 2721 public boolean postEvent(Event e) { 2722 if (handleEvent(e)) { 2723 e.consume(); 2724 return true; 2725 } 2726 return false; 2727 } 2728 2729 /** 2730 * Checks if this Window is showing on screen. 2731 * @see Component#setVisible 2732 */ 2733 public boolean isShowing() { 2734 return visible; 2735 } 2736 2737 /** 2738 * @deprecated As of J2SE 1.4, replaced by 2739 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2740 */ 2741 @Deprecated 2742 public void applyResourceBundle(ResourceBundle rb) { 2743 applyComponentOrientation(ComponentOrientation.getOrientation(rb)); 2744 } 2745 2746 /** 2747 * @deprecated As of J2SE 1.4, replaced by 2748 * {@link Component#applyComponentOrientation Component.applyComponentOrientation}. 2749 */ 2750 @Deprecated 2751 public void applyResourceBundle(String rbName) { 2752 applyResourceBundle(ResourceBundle.getBundle(rbName)); 2753 } 2754 2755 /* 2756 * Support for tracking all windows owned by this window 2757 */ 2758 void addOwnedWindow(WeakReference weakWindow) { 2759 if (weakWindow != null) { 2760 synchronized(ownedWindowList) { 2761 // this if statement should really be an assert, but we don't 2762 // have asserts... 2763 if (!ownedWindowList.contains(weakWindow)) { 2764 ownedWindowList.addElement(weakWindow); 2765 } 2766 } 2767 } 2768 } 2769 2770 void removeOwnedWindow(WeakReference weakWindow) { 2771 if (weakWindow != null) { 2772 // synchronized block not required since removeElement is 2773 // already synchronized 2774 ownedWindowList.removeElement(weakWindow); 2775 } 2776 } 2777 2778 void connectOwnedWindow(Window child) { 2779 child.parent = this; 2780 addOwnedWindow(child.weakThis); 2781 } 2782 2783 private void addToWindowList() { 2784 synchronized (Window.class) { 2785 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)appContext.get(Window.class); 2786 if (windowList == null) { 2787 windowList = new Vector<WeakReference<Window>>(); 2788 appContext.put(Window.class, windowList); 2789 } 2790 windowList.add(weakThis); 2791 } 2792 } 2793 2794 private static void removeFromWindowList(AppContext context, WeakReference weakThis) { 2795 synchronized (Window.class) { 2796 Vector<WeakReference<Window>> windowList = (Vector<WeakReference<Window>>)context.get(Window.class); 2797 if (windowList != null) { 2798 windowList.remove(weakThis); 2799 } 2800 } 2801 } 2802 2803 private void removeFromWindowList() { 2804 removeFromWindowList(appContext, weakThis); 2805 } 2806 2807 /** 2808 * Window type. 2809 * 2810 * Synchronization: ObjectLock 2811 */ 2812 private Type type = Type.NORMAL; 2813 2814 /** 2815 * Sets the type of the window. 2816 * 2817 * This method can only be called while the window is not displayable. 2818 * 2819 * @throws IllegalComponentStateException if the window 2820 * is displayable. 2821 * @throws IllegalArgumentException if the type is {@code null} 2822 * @see Component#isDisplayable 2823 * @see #getType 2824 * @since 1.7 2825 */ 2826 public void setType(Type type) { 2827 if (type == null) { 2828 throw new IllegalArgumentException("type should not be null."); 2829 } 2830 synchronized (getTreeLock()) { 2831 if (isDisplayable()) { 2832 throw new IllegalComponentStateException( 2833 "The window is displayable."); 2834 } 2835 synchronized (getObjectLock()) { 2836 this.type = type; 2837 } 2838 } 2839 } 2840 2841 /** 2842 * Returns the type of the window. 2843 * 2844 * @see #setType 2845 * @since 1.7 2846 */ 2847 public Type getType() { 2848 synchronized (getObjectLock()) { 2849 return type; 2850 } 2851 } 2852 2853 /** 2854 * The window serialized data version. 2855 * 2856 * @serial 2857 */ 2858 private int windowSerializedDataVersion = 2; 2859 2860 /** 2861 * Writes default serializable fields to stream. Writes 2862 * a list of serializable <code>WindowListener</code>s and 2863 * <code>WindowFocusListener</code>s as optional data. 2864 * Writes a list of child windows as optional data. 2865 * Writes a list of icon images as optional data 2866 * 2867 * @param s the <code>ObjectOutputStream</code> to write 2868 * @serialData <code>null</code> terminated sequence of 2869 * 0 or more pairs; the pair consists of a <code>String</code> 2870 * and and <code>Object</code>; the <code>String</code> 2871 * indicates the type of object and is one of the following: 2872 * <code>windowListenerK</code> indicating a 2873 * <code>WindowListener</code> object; 2874 * <code>windowFocusWindowK</code> indicating a 2875 * <code>WindowFocusListener</code> object; 2876 * <code>ownedWindowK</code> indicating a child 2877 * <code>Window</code> object 2878 * 2879 * @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener) 2880 * @see Component#windowListenerK 2881 * @see Component#windowFocusListenerK 2882 * @see Component#ownedWindowK 2883 * @see #readObject(ObjectInputStream) 2884 */ 2885 private void writeObject(ObjectOutputStream s) throws IOException { 2886 synchronized (this) { 2887 // Update old focusMgr fields so that our object stream can be read 2888 // by previous releases 2889 focusMgr = new FocusManager(); 2890 focusMgr.focusRoot = this; 2891 focusMgr.focusOwner = getMostRecentFocusOwner(); 2892 2893 s.defaultWriteObject(); 2894 2895 // Clear fields so that we don't keep extra references around 2896 focusMgr = null; 2897 2898 AWTEventMulticaster.save(s, windowListenerK, windowListener); 2899 AWTEventMulticaster.save(s, windowFocusListenerK, windowFocusListener); 2900 AWTEventMulticaster.save(s, windowStateListenerK, windowStateListener); 2901 } 2902 2903 s.writeObject(null); 2904 2905 synchronized (ownedWindowList) { 2906 for (int i = 0; i < ownedWindowList.size(); i++) { 2907 Window child = ownedWindowList.elementAt(i).get(); 2908 if (child != null) { 2909 s.writeObject(ownedWindowK); 2910 s.writeObject(child); 2911 } 2912 } 2913 } 2914 s.writeObject(null); 2915 2916 //write icon array 2917 if (icons != null) { 2918 for (Image i : icons) { 2919 if (i instanceof Serializable) { 2920 s.writeObject(i); 2921 } 2922 } 2923 } 2924 s.writeObject(null); 2925 } 2926 2927 // 2928 // Part of deserialization procedure to be called before 2929 // user's code. 2930 // 2931 private void initDeserializedWindow() { 2932 setWarningString(); 2933 inputContextLock = new Object(); 2934 2935 // Deserialized Windows are not yet visible. 2936 visible = false; 2937 2938 weakThis = new WeakReference(this); 2939 2940 anchor = new Object(); 2941 sun.java2d.Disposer.addRecord(anchor, new WindowDisposerRecord(appContext, this)); 2942 2943 addToWindowList(); 2944 initGC(null); 2945 } 2946 2947 private void deserializeResources(ObjectInputStream s) 2948 throws ClassNotFoundException, IOException, HeadlessException { 2949 ownedWindowList = new Vector(); 2950 2951 if (windowSerializedDataVersion < 2) { 2952 // Translate old-style focus tracking to new model. For 1.4 and 2953 // later releases, we'll rely on the Window's initial focusable 2954 // Component. 2955 if (focusMgr != null) { 2956 if (focusMgr.focusOwner != null) { 2957 KeyboardFocusManager. 2958 setMostRecentFocusOwner(this, focusMgr.focusOwner); 2959 } 2960 } 2961 2962 // This field is non-transient and relies on default serialization. 2963 // However, the default value is insufficient, so we need to set 2964 // it explicitly for object data streams prior to 1.4. 2965 focusableWindowState = true; 2966 2967 2968 } 2969 2970 Object keyOrNull; 2971 while(null != (keyOrNull = s.readObject())) { 2972 String key = ((String)keyOrNull).intern(); 2973 2974 if (windowListenerK == key) { 2975 addWindowListener((WindowListener)(s.readObject())); 2976 } else if (windowFocusListenerK == key) { 2977 addWindowFocusListener((WindowFocusListener)(s.readObject())); 2978 } else if (windowStateListenerK == key) { 2979 addWindowStateListener((WindowStateListener)(s.readObject())); 2980 } else // skip value for unrecognized key 2981 s.readObject(); 2982 } 2983 2984 try { 2985 while (null != (keyOrNull = s.readObject())) { 2986 String key = ((String)keyOrNull).intern(); 2987 2988 if (ownedWindowK == key) 2989 connectOwnedWindow((Window) s.readObject()); 2990 2991 else // skip value for unrecognized key 2992 s.readObject(); 2993 } 2994 2995 //read icons 2996 Object obj = s.readObject(); //Throws OptionalDataException 2997 //for pre1.6 objects. 2998 icons = new ArrayList<Image>(); //Frame.readObject() assumes 2999 //pre1.6 version if icons is null. 3000 while (obj != null) { 3001 if (obj instanceof Image) { 3002 icons.add((Image)obj); 3003 } 3004 obj = s.readObject(); 3005 } 3006 } 3007 catch (OptionalDataException e) { 3008 // 1.1 serialized form 3009 // ownedWindowList will be updated by Frame.readObject 3010 } 3011 3012 } 3013 3014 /** 3015 * Reads the <code>ObjectInputStream</code> and an optional 3016 * list of listeners to receive various events fired by 3017 * the component; also reads a list of 3018 * (possibly <code>null</code>) child windows. 3019 * Unrecognized keys or values will be ignored. 3020 * 3021 * @param s the <code>ObjectInputStream</code> to read 3022 * @exception HeadlessException if 3023 * <code>GraphicsEnvironment.isHeadless</code> returns 3024 * <code>true</code> 3025 * @see java.awt.GraphicsEnvironment#isHeadless 3026 * @see #writeObject 3027 */ 3028 private void readObject(ObjectInputStream s) 3029 throws ClassNotFoundException, IOException, HeadlessException 3030 { 3031 GraphicsEnvironment.checkHeadless(); 3032 initDeserializedWindow(); 3033 ObjectInputStream.GetField f = s.readFields(); 3034 3035 syncLWRequests = f.get("syncLWRequests", systemSyncLWRequests); 3036 state = f.get("state", 0); 3037 focusableWindowState = f.get("focusableWindowState", true); 3038 windowSerializedDataVersion = f.get("windowSerializedDataVersion", 1); 3039 locationByPlatform = f.get("locationByPlatform", locationByPlatformProp); 3040 // Note: 1.4 (or later) doesn't use focusMgr 3041 focusMgr = (FocusManager)f.get("focusMgr", null); 3042 Dialog.ModalExclusionType et = (Dialog.ModalExclusionType) 3043 f.get("modalExclusionType", Dialog.ModalExclusionType.NO_EXCLUDE); 3044 setModalExclusionType(et); // since 6.0 3045 boolean aot = f.get("alwaysOnTop", false); 3046 if(aot) { 3047 setAlwaysOnTop(aot); // since 1.5; subject to permission check 3048 } 3049 shape = (Shape)f.get("shape", null); 3050 opacity = (Float)f.get("opacity", 1.0f); 3051 3052 this.securityWarningWidth = 0; 3053 this.securityWarningHeight = 0; 3054 this.securityWarningPointX = 2.0; 3055 this.securityWarningPointY = 0.0; 3056 this.securityWarningAlignmentX = RIGHT_ALIGNMENT; 3057 this.securityWarningAlignmentY = TOP_ALIGNMENT; 3058 3059 deserializeResources(s); 3060 } 3061 3062 /* 3063 * --- Accessibility Support --- 3064 * 3065 */ 3066 3067 /** 3068 * Gets the AccessibleContext associated with this Window. 3069 * For windows, the AccessibleContext takes the form of an 3070 * AccessibleAWTWindow. 3071 * A new AccessibleAWTWindow instance is created if necessary. 3072 * 3073 * @return an AccessibleAWTWindow that serves as the 3074 * AccessibleContext of this Window 3075 * @since 1.3 3076 */ 3077 public AccessibleContext getAccessibleContext() { 3078 if (accessibleContext == null) { 3079 accessibleContext = new AccessibleAWTWindow(); 3080 } 3081 return accessibleContext; 3082 } 3083 3084 /** 3085 * This class implements accessibility support for the 3086 * <code>Window</code> class. It provides an implementation of the 3087 * Java Accessibility API appropriate to window user-interface elements. 3088 * @since 1.3 3089 */ 3090 protected class AccessibleAWTWindow extends AccessibleAWTContainer 3091 { 3092 /* 3093 * JDK 1.3 serialVersionUID 3094 */ 3095 private static final long serialVersionUID = 4215068635060671780L; 3096 3097 /** 3098 * Get the role of this object. 3099 * 3100 * @return an instance of AccessibleRole describing the role of the 3101 * object 3102 * @see javax.accessibility.AccessibleRole 3103 */ 3104 public AccessibleRole getAccessibleRole() { 3105 return AccessibleRole.WINDOW; 3106 } 3107 3108 /** 3109 * Get the state of this object. 3110 * 3111 * @return an instance of AccessibleStateSet containing the current 3112 * state set of the object 3113 * @see javax.accessibility.AccessibleState 3114 */ 3115 public AccessibleStateSet getAccessibleStateSet() { 3116 AccessibleStateSet states = super.getAccessibleStateSet(); 3117 if (getFocusOwner() != null) { 3118 states.add(AccessibleState.ACTIVE); 3119 } 3120 return states; 3121 } 3122 3123 } // inner class AccessibleAWTWindow 3124 3125 @Override 3126 void setGraphicsConfiguration(GraphicsConfiguration gc) { 3127 if (gc == null) { 3128 gc = GraphicsEnvironment. 3129 getLocalGraphicsEnvironment(). 3130 getDefaultScreenDevice(). 3131 getDefaultConfiguration(); 3132 } 3133 synchronized (getTreeLock()) { 3134 super.setGraphicsConfiguration(gc); 3135 if (log.isLoggable(PlatformLogger.FINER)) { 3136 log.finer("+ Window.setGraphicsConfiguration(): new GC is \n+ " + getGraphicsConfiguration_NoClientCode() + "\n+ this is " + this); 3137 } 3138 } 3139 } 3140 3141 /** 3142 * Sets the location of the window relative to the specified 3143 * component according to the following scenarios. 3144 * <p> 3145 * The target screen mentioned below is a screen to which 3146 * the window should be placed after the setLocationRelativeTo 3147 * method is called. 3148 * <ul> 3149 * <li>If the component is {@code null}, or the {@code 3150 * GraphicsConfiguration} associated with this component is 3151 * {@code null}, the window is placed in the center of the 3152 * screen. The center point can be obtained with the {@link 3153 * GraphicsEnvironment#getCenterPoint 3154 * GraphicsEnvironment.getCenterPoint} method. 3155 * <li>If the component is not {@code null}, but it is not 3156 * currently showing, the window is placed in the center of 3157 * the target screen defined by the {@code 3158 * GraphicsConfiguration} associated with this component. 3159 * <li>If the component is not {@code null} and is shown on 3160 * the screen, then the window is located in such a way that 3161 * the center of the window coincides with the center of the 3162 * component. 3163 * </ul> 3164 * <p> 3165 * If the screens configuration does not allow the window to 3166 * be moved from one screen to another, then the window is 3167 * only placed at the location determined according to the 3168 * above conditions and its {@code GraphicsConfiguration} is 3169 * not changed. 3170 * <p> 3171 * <b>Note</b>: If the lower edge of the window is out of the screen, 3172 * then the window is placed to the side of the <code>Component</code> 3173 * that is closest to the center of the screen. So if the 3174 * component is on the right part of the screen, the window 3175 * is placed to its left, and vice versa. 3176 * <p> 3177 * If after the window location has been calculated, the upper, 3178 * left, or right edge of the window is out of the screen, 3179 * then the window is located in such a way that the upper, 3180 * left, or right edge of the window coincides with the 3181 * corresponding edge of the screen. If both left and right 3182 * edges of the window are out of the screen, the window is 3183 * placed at the left side of the screen. The similar placement 3184 * will occur if both top and bottom edges are out of the screen. 3185 * In that case, the window is placed at the top side of the screen. 3186 * <p> 3187 * The method changes the geometry-related data. Therefore, 3188 * the native windowing system may ignore such requests, or it may modify 3189 * the requested data, so that the {@code Window} object is placed and sized 3190 * in a way that corresponds closely to the desktop settings. 3191 * 3192 * @param c the component in relation to which the window's location 3193 * is determined 3194 * @see java.awt.GraphicsEnvironment#getCenterPoint 3195 * @since 1.4 3196 */ 3197 public void setLocationRelativeTo(Component c) { 3198 // target location 3199 int dx = 0, dy = 0; 3200 // target GC 3201 GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode(); 3202 Rectangle gcBounds = gc.getBounds(); 3203 3204 Dimension windowSize = getSize(); 3205 3206 // search a top-level of c 3207 Window componentWindow = SunToolkit.getContainingWindow(c); 3208 if ((c == null) || (componentWindow == null)) { 3209 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 3210 gc = ge.getDefaultScreenDevice().getDefaultConfiguration(); 3211 gcBounds = gc.getBounds(); 3212 Point centerPoint = ge.getCenterPoint(); 3213 dx = centerPoint.x - windowSize.width / 2; 3214 dy = centerPoint.y - windowSize.height / 2; 3215 } else if (!c.isShowing()) { 3216 gc = componentWindow.getGraphicsConfiguration(); 3217 gcBounds = gc.getBounds(); 3218 dx = gcBounds.x + (gcBounds.width - windowSize.width) / 2; 3219 dy = gcBounds.y + (gcBounds.height - windowSize.height) / 2; 3220 } else { 3221 gc = componentWindow.getGraphicsConfiguration(); 3222 gcBounds = gc.getBounds(); 3223 Dimension compSize = c.getSize(); 3224 Point compLocation = c.getLocationOnScreen(); 3225 dx = compLocation.x + ((compSize.width - windowSize.width) / 2); 3226 dy = compLocation.y + ((compSize.height - windowSize.height) / 2); 3227 3228 // Adjust for bottom edge being offscreen 3229 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3230 dy = gcBounds.y + gcBounds.height - windowSize.height; 3231 if (compLocation.x - gcBounds.x + compSize.width / 2 < gcBounds.width / 2) { 3232 dx = compLocation.x + compSize.width; 3233 } else { 3234 dx = compLocation.x - windowSize.width; 3235 } 3236 } 3237 } 3238 3239 // Avoid being placed off the edge of the screen: 3240 // bottom 3241 if (dy + windowSize.height > gcBounds.y + gcBounds.height) { 3242 dy = gcBounds.y + gcBounds.height - windowSize.height; 3243 } 3244 // top 3245 if (dy < gcBounds.y) { 3246 dy = gcBounds.y; 3247 } 3248 // right 3249 if (dx + windowSize.width > gcBounds.x + gcBounds.width) { 3250 dx = gcBounds.x + gcBounds.width - windowSize.width; 3251 } 3252 // left 3253 if (dx < gcBounds.x) { 3254 dx = gcBounds.x; 3255 } 3256 3257 setLocation(dx, dy); 3258 } 3259 3260 /** 3261 * Overridden from Component. Top-level Windows should not propagate a 3262 * MouseWheelEvent beyond themselves into their owning Windows. 3263 */ 3264 void deliverMouseWheelToAncestor(MouseWheelEvent e) {} 3265 3266 /** 3267 * Overridden from Component. Top-level Windows don't dispatch to ancestors 3268 */ 3269 boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {return false;} 3270 3271 /** 3272 * Creates a new strategy for multi-buffering on this component. 3273 * Multi-buffering is useful for rendering performance. This method 3274 * attempts to create the best strategy available with the number of 3275 * buffers supplied. It will always create a <code>BufferStrategy</code> 3276 * with that number of buffers. 3277 * A page-flipping strategy is attempted first, then a blitting strategy 3278 * using accelerated buffers. Finally, an unaccelerated blitting 3279 * strategy is used. 3280 * <p> 3281 * Each time this method is called, 3282 * the existing buffer strategy for this component is discarded. 3283 * @param numBuffers number of buffers to create 3284 * @exception IllegalArgumentException if numBuffers is less than 1. 3285 * @exception IllegalStateException if the component is not displayable 3286 * @see #isDisplayable 3287 * @see #getBufferStrategy 3288 * @since 1.4 3289 */ 3290 public void createBufferStrategy(int numBuffers) { 3291 super.createBufferStrategy(numBuffers); 3292 } 3293 3294 /** 3295 * Creates a new strategy for multi-buffering on this component with the 3296 * required buffer capabilities. This is useful, for example, if only 3297 * accelerated memory or page flipping is desired (as specified by the 3298 * buffer capabilities). 3299 * <p> 3300 * Each time this method 3301 * is called, the existing buffer strategy for this component is discarded. 3302 * @param numBuffers number of buffers to create, including the front buffer 3303 * @param caps the required capabilities for creating the buffer strategy; 3304 * cannot be <code>null</code> 3305 * @exception AWTException if the capabilities supplied could not be 3306 * supported or met; this may happen, for example, if there is not enough 3307 * accelerated memory currently available, or if page flipping is specified 3308 * but not possible. 3309 * @exception IllegalArgumentException if numBuffers is less than 1, or if 3310 * caps is <code>null</code> 3311 * @see #getBufferStrategy 3312 * @since 1.4 3313 */ 3314 public void createBufferStrategy(int numBuffers, 3315 BufferCapabilities caps) throws AWTException { 3316 super.createBufferStrategy(numBuffers, caps); 3317 } 3318 3319 /** 3320 * Returns the <code>BufferStrategy</code> used by this component. This 3321 * method will return null if a <code>BufferStrategy</code> has not yet 3322 * been created or has been disposed. 3323 * 3324 * @return the buffer strategy used by this component 3325 * @see #createBufferStrategy 3326 * @since 1.4 3327 */ 3328 public BufferStrategy getBufferStrategy() { 3329 return super.getBufferStrategy(); 3330 } 3331 3332 Component getTemporaryLostComponent() { 3333 return temporaryLostComponent; 3334 } 3335 Component setTemporaryLostComponent(Component component) { 3336 Component previousComp = temporaryLostComponent; 3337 // Check that "component" is an acceptable focus owner and don't store it otherwise 3338 // - or later we will have problems with opposite while handling WINDOW_GAINED_FOCUS 3339 if (component == null || component.canBeFocusOwner()) { 3340 temporaryLostComponent = component; 3341 } else { 3342 temporaryLostComponent = null; 3343 } 3344 return previousComp; 3345 } 3346 3347 /** 3348 * Checks whether this window can contain focus owner. 3349 * Verifies that it is focusable and as container it can container focus owner. 3350 * @since 1.5 3351 */ 3352 boolean canContainFocusOwner(Component focusOwnerCandidate) { 3353 return super.canContainFocusOwner(focusOwnerCandidate) && isFocusableWindow(); 3354 } 3355 3356 private boolean locationByPlatform = locationByPlatformProp; 3357 3358 3359 /** 3360 * Sets whether this Window should appear at the default location for the 3361 * native windowing system or at the current location (returned by 3362 * <code>getLocation</code>) the next time the Window is made visible. 3363 * This behavior resembles a native window shown without programmatically 3364 * setting its location. Most windowing systems cascade windows if their 3365 * locations are not explicitly set. The actual location is determined once the 3366 * window is shown on the screen. 3367 * <p> 3368 * This behavior can also be enabled by setting the System Property 3369 * "java.awt.Window.locationByPlatform" to "true", though calls to this method 3370 * take precedence. 3371 * <p> 3372 * Calls to <code>setVisible</code>, <code>setLocation</code> and 3373 * <code>setBounds</code> after calling <code>setLocationByPlatform</code> clear 3374 * this property of the Window. 3375 * <p> 3376 * For example, after the following code is executed: 3377 * <pre><blockquote> 3378 * setLocationByPlatform(true); 3379 * setVisible(true); 3380 * boolean flag = isLocationByPlatform(); 3381 * </blockquote></pre> 3382 * The window will be shown at platform's default location and 3383 * <code>flag</code> will be <code>false</code>. 3384 * <p> 3385 * In the following sample: 3386 * <pre><blockquote> 3387 * setLocationByPlatform(true); 3388 * setLocation(10, 10); 3389 * boolean flag = isLocationByPlatform(); 3390 * setVisible(true); 3391 * </blockquote></pre> 3392 * The window will be shown at (10, 10) and <code>flag</code> will be 3393 * <code>false</code>. 3394 * 3395 * @param locationByPlatform <code>true</code> if this Window should appear 3396 * at the default location, <code>false</code> if at the current location 3397 * @throws <code>IllegalComponentStateException</code> if the window 3398 * is showing on screen and locationByPlatform is <code>true</code>. 3399 * @see #setLocation 3400 * @see #isShowing 3401 * @see #setVisible 3402 * @see #isLocationByPlatform 3403 * @see java.lang.System#getProperty(String) 3404 * @since 1.5 3405 */ 3406 public void setLocationByPlatform(boolean locationByPlatform) { 3407 synchronized (getTreeLock()) { 3408 if (locationByPlatform && isShowing()) { 3409 throw new IllegalComponentStateException("The window is showing on screen."); 3410 } 3411 this.locationByPlatform = locationByPlatform; 3412 } 3413 } 3414 3415 /** 3416 * Returns <code>true</code> if this Window will appear at the default location 3417 * for the native windowing system the next time this Window is made visible. 3418 * This method always returns <code>false</code> if the Window is showing on the 3419 * screen. 3420 * 3421 * @return whether this Window will appear at the default location 3422 * @see #setLocationByPlatform 3423 * @see #isShowing 3424 * @since 1.5 3425 */ 3426 public boolean isLocationByPlatform() { 3427 synchronized (getTreeLock()) { 3428 return locationByPlatform; 3429 } 3430 } 3431 3432 /** 3433 * {@inheritDoc} 3434 * <p> 3435 * The {@code width} or {@code height} values 3436 * are automatically enlarged if either is less than 3437 * the minimum size as specified by previous call to 3438 * {@code setMinimumSize}. 3439 * <p> 3440 * The method changes the geometry-related data. Therefore, 3441 * the native windowing system may ignore such requests, or it may modify 3442 * the requested data, so that the {@code Window} object is placed and sized 3443 * in a way that corresponds closely to the desktop settings. 3444 * 3445 * @see #getBounds 3446 * @see #setLocation(int, int) 3447 * @see #setLocation(Point) 3448 * @see #setSize(int, int) 3449 * @see #setSize(Dimension) 3450 * @see #setMinimumSize 3451 * @see #setLocationByPlatform 3452 * @see #isLocationByPlatform 3453 * @since 1.6 3454 */ 3455 public void setBounds(int x, int y, int width, int height) { 3456 synchronized (getTreeLock()) { 3457 if (getBoundsOp() == ComponentPeer.SET_LOCATION || 3458 getBoundsOp() == ComponentPeer.SET_BOUNDS) 3459 { 3460 locationByPlatform = false; 3461 } 3462 super.setBounds(x, y, width, height); 3463 } 3464 } 3465 3466 /** 3467 * {@inheritDoc} 3468 * <p> 3469 * The {@code r.width} or {@code r.height} values 3470 * will be automatically enlarged if either is less than 3471 * the minimum size as specified by previous call to 3472 * {@code setMinimumSize}. 3473 * <p> 3474 * The method changes the geometry-related data. Therefore, 3475 * the native windowing system may ignore such requests, or it may modify 3476 * the requested data, so that the {@code Window} object is placed and sized 3477 * in a way that corresponds closely to the desktop settings. 3478 * 3479 * @see #getBounds 3480 * @see #setLocation(int, int) 3481 * @see #setLocation(Point) 3482 * @see #setSize(int, int) 3483 * @see #setSize(Dimension) 3484 * @see #setMinimumSize 3485 * @see #setLocationByPlatform 3486 * @see #isLocationByPlatform 3487 * @since 1.6 3488 */ 3489 public void setBounds(Rectangle r) { 3490 setBounds(r.x, r.y, r.width, r.height); 3491 } 3492 3493 /** 3494 * Determines whether this component will be displayed on the screen. 3495 * @return <code>true</code> if the component and all of its ancestors 3496 * until a toplevel window are visible, <code>false</code> otherwise 3497 */ 3498 boolean isRecursivelyVisible() { 3499 // 5079694 fix: for a toplevel to be displayed, its parent doesn't have to be visible. 3500 // We're overriding isRecursivelyVisible to implement this policy. 3501 return visible; 3502 } 3503 3504 3505 // ******************** SHAPES & TRANSPARENCY CODE ******************** 3506 3507 /** 3508 * Returns the opacity of the window. 3509 * 3510 * @return the opacity of the window 3511 * 3512 * @see Window#setOpacity(float) 3513 * @see GraphicsDevice.WindowTranslucency 3514 * 3515 * @since 1.7 3516 */ 3517 public float getOpacity() { 3518 synchronized (getTreeLock()) { 3519 return opacity; 3520 } 3521 } 3522 3523 /** 3524 * Sets the opacity of the window. 3525 * <p> 3526 * The opacity value is in the range [0..1]. Note that setting the opacity 3527 * level of 0 may or may not disable the mouse event handling on this 3528 * window. This is a platform-dependent behavior. 3529 * <p> 3530 * The following conditions must be met in order to set the opacity value 3531 * less than {@code 1.0f}: 3532 * <ul> 3533 * <li>The {@link GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3534 * translucency must be supported by the underlying system 3535 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3536 * and {@link Dialog#setUndecorated}) 3537 * <li>The window must not be in full-screen mode (see {@link 3538 * GraphicsDevice#setFullScreenWindow(Window)}) 3539 * </ul> 3540 * <p> 3541 * If the requested opacity value is less than {@code 1.0f}, and any of the 3542 * above conditions are not met, the window opacity will not change, 3543 * and the {@code IllegalComponentStateException} will be thrown. 3544 * <p> 3545 * The translucency levels of individual pixels may also be effected by the 3546 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3547 * current shape of this window (see {@link #setShape(Shape)}). 3548 * 3549 * @param opacity the opacity level to set to the window 3550 * 3551 * @throws IllegalArgumentException if the opacity is out of the range 3552 * [0..1] 3553 * @throws IllegalComponentStateException if the window is decorated and 3554 * the opacity is less than {@code 1.0f} 3555 * @throws IllegalComponentStateException if the window is in full screen 3556 * mode, and the opacity is less than {@code 1.0f} 3557 * @throws UnsupportedOperationException if the {@code 3558 * GraphicsDevice.WindowTranslucency#TRANSLUCENT TRANSLUCENT} 3559 * translucency is not supported and the opacity is less than 3560 * {@code 1.0f} 3561 * 3562 * @see Window#getOpacity 3563 * @see Window#setBackground(Color) 3564 * @see Window#setShape(Shape) 3565 * @see Frame#isUndecorated 3566 * @see Dialog#isUndecorated 3567 * @see GraphicsDevice.WindowTranslucency 3568 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3569 * 3570 * @since 1.7 3571 */ 3572 public void setOpacity(float opacity) { 3573 synchronized (getTreeLock()) { 3574 if (opacity < 0.0f || opacity > 1.0f) { 3575 throw new IllegalArgumentException( 3576 "The value of opacity should be in the range [0.0f .. 1.0f]."); 3577 } 3578 if (opacity < 1.0f) { 3579 GraphicsConfiguration gc = getGraphicsConfiguration(); 3580 GraphicsDevice gd = gc.getDevice(); 3581 if (gc.getDevice().getFullScreenWindow() == this) { 3582 throw new IllegalComponentStateException( 3583 "Setting opacity for full-screen window is not supported."); 3584 } 3585 if (!gd.isWindowTranslucencySupported( 3586 GraphicsDevice.WindowTranslucency.TRANSLUCENT)) 3587 { 3588 throw new UnsupportedOperationException( 3589 "TRANSLUCENT translucency is not supported."); 3590 } 3591 } 3592 this.opacity = opacity; 3593 WindowPeer peer = (WindowPeer)getPeer(); 3594 if (peer != null) { 3595 peer.setOpacity(opacity); 3596 } 3597 } 3598 } 3599 3600 /** 3601 * Returns the shape of the window. 3602 * 3603 * The value returned by this method may not be the same as 3604 * previously set with {@code setShape(shape)}, but it is guaranteed 3605 * to represent the same shape. 3606 * 3607 * @return the shape of the window or {@code null} if no 3608 * shape is specified for the window 3609 * 3610 * @see Window#setShape(Shape) 3611 * @see GraphicsDevice.WindowTranslucency 3612 * 3613 * @since 1.7 3614 */ 3615 public Shape getShape() { 3616 synchronized (getTreeLock()) { 3617 return shape == null ? null : new Path2D.Float(shape); 3618 } 3619 } 3620 3621 /** 3622 * Sets the shape of the window. 3623 * <p> 3624 * Setting a shape cuts off some parts of the window. Only the parts that 3625 * belong to the given {@link Shape} remain visible and clickable. If 3626 * the shape argument is {@code null}, this method restores the default 3627 * shape, making the window rectangular on most platforms. 3628 * <p> 3629 * The following conditions must be met to set a non-null shape: 3630 * <ul> 3631 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3632 * PERPIXEL_TRANSPARENT} translucency must be supported by the 3633 * underlying system 3634 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3635 * and {@link Dialog#setUndecorated}) 3636 * <li>The window must not be in full-screen mode (see {@link 3637 * GraphicsDevice#setFullScreenWindow(Window)}) 3638 * </ul> 3639 * <p> 3640 * If the requested shape is not {@code null}, and any of the above 3641 * conditions are not met, the shape of this window will not change, 3642 * and either the {@code UnsupportedOperationException} or {@code 3643 * IllegalComponentStateException} will be thrown. 3644 * <p> 3645 * The tranlucency levels of individual pixels may also be effected by the 3646 * alpha component of their color (see {@link Window#setBackground(Color)}) and the 3647 * opacity value (see {@link #setOpacity(float)}). See {@link 3648 * GraphicsDevice.WindowTranslucency} for more details. 3649 * 3650 * @param shape the shape to set to the window 3651 * 3652 * @throws IllegalComponentStateException if the shape is not {@code 3653 * null} and the window is decorated 3654 * @throws IllegalComponentStateException if the shape is not {@code 3655 * null} and the window is in full-screen mode 3656 * @throws UnsupportedOperationException if the shape is not {@code 3657 * null} and {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSPARENT 3658 * PERPIXEL_TRANSPARENT} translucency is not supported 3659 * 3660 * @see Window#getShape() 3661 * @see Window#setBackground(Color) 3662 * @see Window#setOpacity(float) 3663 * @see Frame#isUndecorated 3664 * @see Dialog#isUndecorated 3665 * @see GraphicsDevice.WindowTranslucency 3666 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3667 * 3668 * @since 1.7 3669 */ 3670 public void setShape(Shape shape) { 3671 synchronized (getTreeLock()) { 3672 if (shape != null) { 3673 GraphicsConfiguration gc = getGraphicsConfiguration(); 3674 GraphicsDevice gd = gc.getDevice(); 3675 if (gc.getDevice().getFullScreenWindow() == this) { 3676 throw new IllegalComponentStateException( 3677 "Setting shape for full-screen window is not supported."); 3678 } 3679 if (!gd.isWindowTranslucencySupported( 3680 GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSPARENT)) 3681 { 3682 throw new UnsupportedOperationException( 3683 "PERPIXEL_TRANSPARENT translucency is not supported."); 3684 } 3685 } 3686 this.shape = (shape == null) ? null : new Path2D.Float(shape); 3687 WindowPeer peer = (WindowPeer)getPeer(); 3688 if (peer != null) { 3689 peer.applyShape(shape == null ? null : Region.getInstance(shape, null)); 3690 } 3691 } 3692 } 3693 3694 /** 3695 * Gets the background color of this window. 3696 * <p> 3697 * Note that the alpha component of the returned color indicates whether 3698 * the window is in the non-opaque (per-pixel translucent) mode. 3699 * 3700 * @return this component's background color 3701 * 3702 * @see Window#setBackground(Color) 3703 * @see Window#isOpaque 3704 * @see GraphicsDevice.WindowTranslucency 3705 */ 3706 @Override 3707 public Color getBackground() { 3708 return super.getBackground(); 3709 } 3710 3711 /** 3712 * Sets the background color of this window. 3713 * <p> 3714 * If the windowing system supports the {@link 3715 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT PERPIXEL_TRANSLUCENT} 3716 * tranclucency, the alpha component of the given background color 3717 * may effect the mode of operation for this window: it indicates whether 3718 * this window must be opaque (alpha equals {@code 1.0f}) or per-pixel translucent 3719 * (alpha is less than {@code 1.0f}). If the given background color is 3720 * {@code null}, the window is considered completely opaque. 3721 * <p> 3722 * All the following conditions must be met to enable the per-pixel 3723 * transparency mode for this window: 3724 * <ul> 3725 * <li>The {@link GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3726 * PERPIXEL_TRANSLUCENT} translucency must be supported by the graphics 3727 * device where this window is located 3728 * <li>The window must be undecorated (see {@link Frame#setUndecorated} 3729 * and {@link Dialog#setUndecorated}) 3730 * <li>The window must not be in full-screen mode (see {@link 3731 * GraphicsDevice#setFullScreenWindow(Window)}) 3732 * </ul> 3733 * <p> 3734 * If the alpha component of the requested background color is less than 3735 * {@code 1.0f}, and any of the above conditions are not met, the background 3736 * color of this window will not change, the alpha component of the given 3737 * background color will not affect the mode of operation for this window, 3738 * and either the {@code UnsupportedOperationException} or {@code 3739 * IllegalComponentStateException} will be thrown. 3740 * <p> 3741 * When the window is per-pixel translucent, the drawing sub-system 3742 * respects the alpha value of each individual pixel. If a pixel gets 3743 * painted with the alpha color component equal to zero, it becomes 3744 * visually transparent. If the alpha of the pixel is equal to 1.0f, the 3745 * pixel is fully opaque. Interim values of the alpha color component make 3746 * the pixel semi-transparent. In this mode, the background of the window 3747 * gets painted with the alpha value of the given background color. If the 3748 * alpha value of the argument of this method is equal to {@code 0}, the 3749 * background is not painted at all. 3750 * <p> 3751 * The actual level of translucency of a given pixel also depends on window 3752 * opacity (see {@link #setOpacity(float)}), as well as the current shape of 3753 * this window (see {@link #setShape(Shape)}). 3754 * <p> 3755 * Note that painting a pixel with the alpha value of {@code 0} may or may 3756 * not disable the mouse event handling on this pixel. This is a 3757 * platform-dependent behavior. To make sure the mouse events do not get 3758 * dispatched to a particular pixel, the pixel must be excluded from the 3759 * shape of the window. 3760 * <p> 3761 * Enabling the per-pixel translucency mode may change the graphics 3762 * configuration of this window due to the native platform requirements. 3763 * 3764 * @param bgColor the color to become this window's background color. 3765 * 3766 * @throws IllegalComponentStateException if the alpha value of the given 3767 * background color is less than {@code 1.0f} and the window is decorated 3768 * @throws IllegalComponentStateException if the alpha value of the given 3769 * background color is less than {@code 1.0f} and the window is in 3770 * full-screen mode 3771 * @throws UnsupportedOperationException if the alpha value of the given 3772 * background color is less than {@code 1.0f} and {@link 3773 * GraphicsDevice.WindowTranslucency#PERPIXEL_TRANSLUCENT 3774 * PERPIXEL_TRANSLUCENT} translucency is not supported 3775 * 3776 * @see Window#getBackground 3777 * @see Window#isOpaque 3778 * @see Window#setOpacity(float) 3779 * @see Window#setShape(Shape) 3780 * @see Frame#isUndecorated 3781 * @see Dialog#isUndecorated 3782 * @see GraphicsDevice.WindowTranslucency 3783 * @see GraphicsDevice#isWindowTranslucencySupported(GraphicsDevice.WindowTranslucency) 3784 * @see GraphicsConfiguration#isTranslucencyCapable() 3785 */ 3786 @Override 3787 public void setBackground(Color bgColor) { 3788 Color oldBg = getBackground(); 3789 super.setBackground(bgColor); 3790 if (oldBg != null && oldBg.equals(bgColor)) { 3791 return; 3792 } 3793 int oldAlpha = oldBg != null ? oldBg.getAlpha() : 255; 3794 int alpha = bgColor != null ? bgColor.getAlpha() : 255; 3795 if ((oldAlpha == 255) && (alpha < 255)) { // non-opaque window 3796 GraphicsConfiguration gc = getGraphicsConfiguration(); 3797 GraphicsDevice gd = gc.getDevice(); 3798 if (gc.getDevice().getFullScreenWindow() == this) { 3799 throw new IllegalComponentStateException( 3800 "Making full-screen window non opaque is not supported."); 3801 } 3802 if (!gc.isTranslucencyCapable()) { 3803 GraphicsConfiguration capableGC = gd.getTranslucencyCapableGC(); 3804 if (capableGC == null) { 3805 throw new UnsupportedOperationException( 3806 "PERPIXEL_TRANSLUCENT translucency is not supported"); 3807 } 3808 setGraphicsConfiguration(capableGC); 3809 } 3810 setLayersOpaque(this, false); 3811 } else if ((oldAlpha < 255) && (alpha == 255)) { 3812 setLayersOpaque(this, true); 3813 } 3814 WindowPeer peer = (WindowPeer)getPeer(); 3815 if (peer != null) { 3816 peer.setOpaque(alpha == 255); 3817 } 3818 } 3819 3820 /** 3821 * Indicates if the window is currently opaque. 3822 * <p> 3823 * The method returns {@code false} if the background color of the window 3824 * is not {@code null} and the alpha component of the color is less than 3825 * {@code 1.0f}. The method returns {@code true} otherwise. 3826 * 3827 * @return {@code true} if the window is opaque, {@code false} otherwise 3828 * 3829 * @see Window#getBackground 3830 * @see Window#setBackground(Color) 3831 * @since 1.7 3832 */ 3833 @Override 3834 public boolean isOpaque() { 3835 Color bg = getBackground(); 3836 return bg != null ? bg.getAlpha() == 255 : true; 3837 } 3838 3839 private void updateWindow() { 3840 synchronized (getTreeLock()) { 3841 WindowPeer peer = (WindowPeer)getPeer(); 3842 if (peer != null) { 3843 peer.updateWindow(); 3844 } 3845 } 3846 } 3847 3848 /** 3849 * {@inheritDoc} 3850 * 3851 * @since 1.7 3852 */ 3853 @Override 3854 public void paint(Graphics g) { 3855 if (!isOpaque()) { 3856 Graphics gg = g.create(); 3857 try { 3858 if (gg instanceof Graphics2D) { 3859 gg.setColor(getBackground()); 3860 ((Graphics2D)gg).setComposite(AlphaComposite.getInstance(AlphaComposite.SRC)); 3861 gg.fillRect(0, 0, getWidth(), getHeight()); 3862 } 3863 } finally { 3864 gg.dispose(); 3865 } 3866 } 3867 super.paint(g); 3868 } 3869 3870 private static void setLayersOpaque(Component component, boolean isOpaque) { 3871 // Shouldn't use instanceof to avoid loading Swing classes 3872 // if it's a pure AWT application. 3873 if (SunToolkit.isInstanceOf(component, "javax.swing.RootPaneContainer")) { 3874 javax.swing.RootPaneContainer rpc = (javax.swing.RootPaneContainer)component; 3875 javax.swing.JRootPane root = rpc.getRootPane(); 3876 javax.swing.JLayeredPane lp = root.getLayeredPane(); 3877 Container c = root.getContentPane(); 3878 javax.swing.JComponent content = 3879 (c instanceof javax.swing.JComponent) ? (javax.swing.JComponent)c : null; 3880 lp.setOpaque(isOpaque); 3881 root.setOpaque(isOpaque); 3882 if (content != null) { 3883 content.setOpaque(isOpaque); 3884 3885 // Iterate down one level to see whether we have a JApplet 3886 // (which is also a RootPaneContainer) which requires processing 3887 int numChildren = content.getComponentCount(); 3888 if (numChildren > 0) { 3889 Component child = content.getComponent(0); 3890 // It's OK to use instanceof here because we've 3891 // already loaded the RootPaneContainer class by now 3892 if (child instanceof javax.swing.RootPaneContainer) { 3893 setLayersOpaque(child, isOpaque); 3894 } 3895 } 3896 } 3897 } 3898 } 3899 3900 3901 // ************************** MIXING CODE ******************************* 3902 3903 // A window has a parent, but it does NOT have a container 3904 @Override 3905 final Container getContainer() { 3906 return null; 3907 } 3908 3909 /** 3910 * Applies the shape to the component 3911 * @param shape Shape to be applied to the component 3912 */ 3913 @Override 3914 final void applyCompoundShape(Region shape) { 3915 // The shape calculated by mixing code is not intended to be applied 3916 // to windows or frames 3917 } 3918 3919 @Override 3920 final void applyCurrentShape() { 3921 // The shape calculated by mixing code is not intended to be applied 3922 // to windows or frames 3923 } 3924 3925 @Override 3926 final void mixOnReshaping() { 3927 // The shape calculated by mixing code is not intended to be applied 3928 // to windows or frames 3929 } 3930 3931 @Override 3932 final Point getLocationOnWindow() { 3933 return new Point(0, 0); 3934 } 3935 3936 // ****************** END OF MIXING CODE ******************************** 3937 3938 /** 3939 * Limit the given double value with the given range. 3940 */ 3941 private static double limit(double value, double min, double max) { 3942 value = Math.max(value, min); 3943 value = Math.min(value, max); 3944 return value; 3945 } 3946 3947 /** 3948 * Calculate the position of the security warning. 3949 * 3950 * This method gets the window location/size as reported by the native 3951 * system since the locally cached values may represent outdated data. 3952 * 3953 * The method is used from the native code, or via AWTAccessor. 3954 * 3955 * NOTE: this method is invoked on the toolkit thread, and therefore is not 3956 * supposed to become public/user-overridable. 3957 */ 3958 private Point2D calculateSecurityWarningPosition(double x, double y, 3959 double w, double h) 3960 { 3961 // The position according to the spec of SecurityWarning.setPosition() 3962 double wx = x + w * securityWarningAlignmentX + securityWarningPointX; 3963 double wy = y + h * securityWarningAlignmentY + securityWarningPointY; 3964 3965 // First, make sure the warning is not too far from the window bounds 3966 wx = Window.limit(wx, 3967 x - securityWarningWidth - 2, 3968 x + w + 2); 3969 wy = Window.limit(wy, 3970 y - securityWarningHeight - 2, 3971 y + h + 2); 3972 3973 // Now make sure the warning window is visible on the screen 3974 GraphicsConfiguration graphicsConfig = 3975 getGraphicsConfiguration_NoClientCode(); 3976 Rectangle screenBounds = graphicsConfig.getBounds(); 3977 Insets screenInsets = 3978 Toolkit.getDefaultToolkit().getScreenInsets(graphicsConfig); 3979 3980 wx = Window.limit(wx, 3981 screenBounds.x + screenInsets.left, 3982 screenBounds.x + screenBounds.width - screenInsets.right 3983 - securityWarningWidth); 3984 wy = Window.limit(wy, 3985 screenBounds.y + screenInsets.top, 3986 screenBounds.y + screenBounds.height - screenInsets.bottom 3987 - securityWarningHeight); 3988 3989 return new Point2D.Double(wx, wy); 3990 } 3991 3992 static { 3993 AWTAccessor.setWindowAccessor(new AWTAccessor.WindowAccessor() { 3994 public float getOpacity(Window window) { 3995 return window.opacity; 3996 } 3997 public void setOpacity(Window window, float opacity) { 3998 window.setOpacity(opacity); 3999 } 4000 public Shape getShape(Window window) { 4001 return window.getShape(); 4002 } 4003 public void setShape(Window window, Shape shape) { 4004 window.setShape(shape); 4005 } 4006 public void setOpaque(Window window, boolean opaque) { 4007 Color bg = window.getBackground(); 4008 if (bg == null) { 4009 bg = new Color(0, 0, 0, 0); 4010 } 4011 window.setBackground(new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 4012 opaque ? 255 : 0)); 4013 } 4014 public void updateWindow(Window window) { 4015 window.updateWindow(); 4016 } 4017 4018 public Dimension getSecurityWarningSize(Window window) { 4019 return new Dimension(window.securityWarningWidth, 4020 window.securityWarningHeight); 4021 } 4022 4023 public void setSecurityWarningSize(Window window, int width, int height) 4024 { 4025 window.securityWarningWidth = width; 4026 window.securityWarningHeight = height; 4027 } 4028 4029 public void setSecurityWarningPosition(Window window, 4030 Point2D point, float alignmentX, float alignmentY) 4031 { 4032 window.securityWarningPointX = point.getX(); 4033 window.securityWarningPointY = point.getY(); 4034 window.securityWarningAlignmentX = alignmentX; 4035 window.securityWarningAlignmentY = alignmentY; 4036 4037 synchronized (window.getTreeLock()) { 4038 WindowPeer peer = (WindowPeer)window.getPeer(); 4039 if (peer != null) { 4040 peer.repositionSecurityWarning(); 4041 } 4042 } 4043 } 4044 4045 public Point2D calculateSecurityWarningPosition(Window window, 4046 double x, double y, double w, double h) 4047 { 4048 return window.calculateSecurityWarningPosition(x, y, w, h); 4049 } 4050 4051 public void setLWRequestStatus(Window changed, boolean status) { 4052 changed.syncLWRequests = status; 4053 } 4054 4055 public boolean isAutoRequestFocus(Window w) { 4056 return w.autoRequestFocus; 4057 } 4058 4059 public boolean isTrayIconWindow(Window w) { 4060 return w.isTrayIconWindow; 4061 } 4062 4063 public void setTrayIconWindow(Window w, boolean isTrayIconWindow) { 4064 w.isTrayIconWindow = isTrayIconWindow; 4065 } 4066 }); // WindowAccessor 4067 } // static 4068 4069 // a window doesn't need to be updated in the Z-order. 4070 @Override 4071 void updateZOrder() {} 4072 4073 } // class Window 4074 4075 4076 /** 4077 * This class is no longer used, but is maintained for Serialization 4078 * backward-compatibility. 4079 */ 4080 class FocusManager implements java.io.Serializable { 4081 Container focusRoot; 4082 Component focusOwner; 4083 4084 /* 4085 * JDK 1.1 serialVersionUID 4086 */ 4087 static final long serialVersionUID = 2491878825643557906L; 4088 }