1 /* 2 * Copyright (c) 2011, 2012, 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 26 package sun.lwawt; 27 28 import java.awt.*; 29 import java.awt.event.*; 30 import java.awt.image.BufferedImage; 31 import java.awt.peer.*; 32 import java.util.List; 33 34 import javax.swing.*; 35 36 import sun.awt.*; 37 import sun.java2d.*; 38 import sun.java2d.loops.Blit; 39 import sun.java2d.loops.CompositeType; 40 import sun.java2d.pipe.Region; 41 import sun.util.logging.PlatformLogger; 42 43 public class LWWindowPeer 44 extends LWContainerPeer<Window, JComponent> 45 implements WindowPeer, FramePeer, DialogPeer, FullScreenCapable 46 { 47 public static enum PeerType { 48 SIMPLEWINDOW, 49 FRAME, 50 DIALOG, 51 EMBEDDEDFRAME 52 } 53 54 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer"); 55 56 private PlatformWindow platformWindow; 57 58 // Window bounds reported by the native system (as opposed to 59 // regular bounds inherited from LWComponentPeer which are 60 // requested by user and may haven't been applied yet because 61 // of asynchronous requests to the windowing system) 62 private int sysX; 63 private int sysY; 64 private int sysW; 65 private int sysH; 66 67 private static final int MINIMUM_WIDTH = 1; 68 private static final int MINIMUM_HEIGHT = 1; 69 70 private Insets insets = new Insets(0, 0, 0, 0); 71 72 private GraphicsDevice graphicsDevice; 73 private GraphicsConfiguration graphicsConfig; 74 75 private SurfaceData surfaceData; 76 private final Object surfaceDataLock = new Object(); 77 78 private int backBufferCount; 79 private BufferCapabilities backBufferCaps; 80 81 // The back buffer is used for two purposes: 82 // 1. To render all the lightweight peers 83 // 2. To provide user with a BufferStrategy 84 // Need to check if a single back buffer can be used for both 85 // TODO: VolatileImage 86 // private VolatileImage backBuffer; 87 private volatile BufferedImage backBuffer; 88 89 private volatile int windowState = Frame.NORMAL; 90 91 // A peer where the last mouse event came to. Used to generate 92 // MOUSE_ENTERED/EXITED notifications and by cursor manager to 93 // find the component under cursor 94 private static volatile LWComponentPeer lastMouseEventPeer = null; 95 96 // Peers where all dragged/released events should come to, 97 // depending on what mouse button is being dragged according to Cocoa 98 private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3]; 99 100 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events 101 // on MOUSE_RELEASE. Click events are only generated if there were no drag 102 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button 103 private static int mouseClickButtons = 0; 104 105 private volatile boolean isOpaque = true; 106 107 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13); 108 109 private static LWWindowPeer grabbingWindow; 110 111 private volatile boolean skipNextFocusChange; 112 113 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0); 114 115 /** 116 * Current modal blocker or null. 117 * 118 * Synchronization: peerTreeLock. 119 */ 120 private LWWindowPeer blocker; 121 122 public LWWindowPeer(Window target, PlatformComponent platformComponent, 123 PlatformWindow platformWindow) 124 { 125 super(target, platformComponent); 126 this.platformWindow = platformWindow; 127 128 Window owner = target.getOwner(); 129 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null; 130 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null; 131 132 // The delegate.initialize() needs a non-null GC on X11. 133 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration(); 134 synchronized (getStateLock()) { 135 // graphicsConfig should be updated according to the real window 136 // bounds when the window is shown, see 4868278 137 this.graphicsConfig = gc; 138 } 139 140 if (!target.isFontSet()) { 141 target.setFont(DEFAULT_FONT); 142 } 143 144 if (!target.isBackgroundSet()) { 145 target.setBackground(SystemColor.window); 146 } else { 147 // first we check if user provided alpha for background. This is 148 // similar to what Apple's Java do. 149 // Since JDK7 we should rely on setOpacity() only. 150 // this.opacity = c.getAlpha(); 151 } 152 153 if (!target.isForegroundSet()) { 154 target.setForeground(SystemColor.windowText); 155 // we should not call setForeground because it will call a repaint 156 // which the peer may not be ready to do yet. 157 } 158 159 platformWindow.initialize(target, this, ownerDelegate); 160 } 161 162 @Override 163 void initializeImpl() { 164 super.initializeImpl(); 165 if (getTarget() instanceof Frame) { 166 setTitle(((Frame) getTarget()).getTitle()); 167 setState(((Frame) getTarget()).getExtendedState()); 168 } else if (getTarget() instanceof Dialog) { 169 setTitle(((Dialog) getTarget()).getTitle()); 170 } 171 172 setAlwaysOnTop(getTarget().isAlwaysOnTop()); 173 updateMinimumSize(); 174 175 final Shape shape = getTarget().getShape(); 176 if (shape != null) { 177 applyShape(Region.getInstance(shape, null)); 178 } 179 180 final float opacity = getTarget().getOpacity(); 181 if (opacity < 1.0f) { 182 setOpacity(opacity); 183 } 184 185 setOpaque(getTarget().isOpaque()); 186 187 updateInsets(platformWindow.getInsets()); 188 if (getSurfaceData() == null) { 189 replaceSurfaceData(false); 190 } 191 } 192 193 // Just a helper method 194 public PlatformWindow getPlatformWindow() { 195 return platformWindow; 196 } 197 198 @Override 199 protected LWWindowPeer getWindowPeerOrSelf() { 200 return this; 201 } 202 203 @Override 204 protected void initializeContainerPeer() { 205 // No-op as LWWindowPeer doesn't have any containerPeer 206 } 207 208 // ---- PEER METHODS ---- // 209 210 @Override 211 protected void disposeImpl() { 212 SurfaceData oldData = getSurfaceData(); 213 synchronized (surfaceDataLock){ 214 surfaceData = null; 215 } 216 if (oldData != null) { 217 oldData.invalidate(); 218 } 219 if (isGrabbing()) { 220 ungrab(); 221 } 222 destroyBuffers(); 223 platformWindow.dispose(); 224 super.disposeImpl(); 225 } 226 227 @Override 228 protected void setVisibleImpl(final boolean visible) { 229 super.setVisibleImpl(visible); 230 // TODO: update graphicsConfig, see 4868278 231 platformWindow.setVisible(visible); 232 if (isSimpleWindow()) { 233 LWKeyboardFocusManagerPeer manager = LWKeyboardFocusManagerPeer. 234 getInstance(getAppContext()); 235 236 if (visible) { 237 if (!getTarget().isAutoRequestFocus()) { 238 return; 239 } else { 240 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION); 241 } 242 // Focus the owner in case this window is focused. 243 } else if (manager.getCurrentFocusedWindow() == getTarget()) { 244 // Transfer focus to the owner. 245 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this); 246 if (owner != null) { 247 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION); 248 } 249 } 250 } 251 } 252 253 @Override 254 public GraphicsConfiguration getGraphicsConfiguration() { 255 return graphicsConfig; 256 } 257 258 @Override 259 public boolean updateGraphicsData(GraphicsConfiguration gc) { 260 setGraphicsConfig(gc); 261 return false; 262 } 263 264 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) { 265 if (getSurfaceData() == null) { 266 return null; 267 } 268 if (fg == null) { 269 fg = SystemColor.windowText; 270 } 271 if (bg == null) { 272 bg = SystemColor.window; 273 } 274 if (f == null) { 275 f = DEFAULT_FONT; 276 } 277 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f)); 278 } 279 280 @Override 281 public void createBuffers(int numBuffers, BufferCapabilities caps) 282 throws AWTException 283 { 284 try { 285 // Assume this method is never called with numBuffers <= 1, as 0 is 286 // unsupported, and 1 corresponds to a SingleBufferStrategy which 287 // doesn't depend on the peer. Screen is considered as a separate 288 // "buffer", that's why numBuffers - 1 289 assert numBuffers > 1; 290 291 replaceSurfaceData(numBuffers - 1, caps, false); 292 } catch (InvalidPipeException z) { 293 throw new AWTException(z.toString()); 294 } 295 } 296 297 @Override 298 public final Image getBackBuffer() { 299 synchronized (getStateLock()) { 300 return backBuffer; 301 } 302 } 303 304 @Override 305 public void flip(int x1, int y1, int x2, int y2, 306 BufferCapabilities.FlipContents flipAction) 307 { 308 platformWindow.flip(x1, y1, x2, y2, flipAction); 309 } 310 311 @Override 312 public final void destroyBuffers() { 313 final Image oldBB = getBackBuffer(); 314 synchronized (getStateLock()) { 315 backBuffer = null; 316 } 317 if (oldBB != null) { 318 oldBB.flush(); 319 } 320 } 321 322 @Override 323 public void setBounds(int x, int y, int w, int h, int op) { 324 if ((op & SET_CLIENT_SIZE) != 0) { 325 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here 326 // instead of pulling 'insets' field up to LWComponentPeer 327 // no need to add insets since Window's notion of width and height includes insets. 328 op &= ~SET_CLIENT_SIZE; 329 op |= SET_SIZE; 330 } 331 332 if (w < MINIMUM_WIDTH) { 333 w = MINIMUM_WIDTH; 334 } 335 if (h < MINIMUM_HEIGHT) { 336 h = MINIMUM_HEIGHT; 337 } 338 339 // Don't post ComponentMoved/Resized and Paint events 340 // until we've got a notification from the delegate 341 setBounds(x, y, w, h, op, false, false); 342 // Get updated bounds, so we don't have to handle 'op' here manually 343 Rectangle r = getBounds(); 344 platformWindow.setBounds(r.x, r.y, r.width, r.height); 345 } 346 347 @Override 348 public Point getLocationOnScreen() { 349 return platformWindow.getLocationOnScreen(); 350 } 351 352 /** 353 * Overridden from LWContainerPeer to return the correct insets. 354 * Insets are queried from the delegate and are kept up to date by 355 * requiering when needed (i.e. when the window geometry is changed). 356 */ 357 @Override 358 public Insets getInsets() { 359 synchronized (getStateLock()) { 360 return insets; 361 } 362 } 363 364 @Override 365 public FontMetrics getFontMetrics(Font f) { 366 // TODO: check for "use platform metrics" settings 367 return platformWindow.getFontMetrics(f); 368 } 369 370 @Override 371 public void toFront() { 372 platformWindow.toFront(); 373 } 374 375 @Override 376 public void toBack() { 377 platformWindow.toBack(); 378 } 379 380 @Override 381 public void setZOrder(ComponentPeer above) { 382 throw new RuntimeException("not implemented"); 383 } 384 385 @Override 386 public void setAlwaysOnTop(boolean value) { 387 platformWindow.setAlwaysOnTop(value); 388 } 389 390 @Override 391 public void updateFocusableWindowState() { 392 platformWindow.updateFocusableWindowState(); 393 } 394 395 @Override 396 public void setModalBlocked(Dialog blocker, boolean blocked) { 397 synchronized (getPeerTreeLock()) { 398 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null; 399 } 400 401 platformWindow.setModalBlocked(blocked); 402 } 403 404 @Override 405 public void updateMinimumSize() { 406 Dimension d = null; 407 if (getTarget().isMinimumSizeSet()) { 408 d = getTarget().getMinimumSize(); 409 } 410 if (d == null) { 411 d = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT); 412 } 413 platformWindow.setMinimumSize(d.width, d.height); 414 } 415 416 @Override 417 public void updateIconImages() { 418 getPlatformWindow().updateIconImages(); 419 } 420 421 @Override 422 public void setOpacity(float opacity) { 423 getPlatformWindow().setOpacity(opacity); 424 repaintPeer(); 425 } 426 427 @Override 428 public final void setOpaque(final boolean isOpaque) { 429 if (this.isOpaque != isOpaque) { 430 this.isOpaque = isOpaque; 431 updateOpaque(); 432 } 433 } 434 435 private void updateOpaque() { 436 getPlatformWindow().setOpaque(!isTranslucent()); 437 replaceSurfaceData(false); 438 repaintPeer(); 439 } 440 441 @Override 442 public void updateWindow() { 443 } 444 445 public final boolean isTranslucent() { 446 synchronized (getStateLock()) { 447 return !isOpaque || isShaped(); 448 } 449 } 450 451 @Override 452 final void applyShapeImpl(final Region shape) { 453 super.applyShapeImpl(shape); 454 updateOpaque(); 455 } 456 457 @Override 458 public void repositionSecurityWarning() { 459 throw new RuntimeException("not implemented"); 460 } 461 462 // ---- FRAME PEER METHODS ---- // 463 464 @Override // FramePeer and DialogPeer 465 public void setTitle(String title) { 466 platformWindow.setTitle(title == null ? "" : title); 467 } 468 469 @Override 470 public void setMenuBar(MenuBar mb) { 471 platformWindow.setMenuBar(mb); 472 } 473 474 @Override // FramePeer and DialogPeer 475 public void setResizable(boolean resizable) { 476 platformWindow.setResizable(resizable); 477 } 478 479 @Override 480 public void setState(int state) { 481 platformWindow.setWindowState(state); 482 } 483 484 @Override 485 public int getState() { 486 return windowState; 487 } 488 489 @Override 490 public void setMaximizedBounds(Rectangle bounds) { 491 // TODO: not implemented 492 } 493 494 @Override 495 public void setBoundsPrivate(int x, int y, int width, int height) { 496 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK); 497 } 498 499 @Override 500 public Rectangle getBoundsPrivate() { 501 throw new RuntimeException("not implemented"); 502 } 503 504 // ---- DIALOG PEER METHODS ---- // 505 506 @Override 507 public void blockWindows(List<Window> windows) { 508 //TODO: LWX will probably need some collectJavaToplevels to speed this up 509 for (Window w : windows) { 510 WindowPeer wp = (WindowPeer)w.getPeer(); 511 if (wp != null) { 512 wp.setModalBlocked((Dialog)getTarget(), true); 513 } 514 } 515 } 516 517 // ---- PEER NOTIFICATIONS ---- // 518 519 public void notifyIconify(boolean iconify) { 520 //The toplevel target is Frame and states are applicable to it. 521 //Otherwise, the target is Window and it don't have state property. 522 //Hopefully, no such events are posted in the queue so consider the 523 //target as Frame in all cases. 524 525 // REMIND: should we send it anyway if the state not changed since last 526 // time? 527 WindowEvent iconifyEvent = new WindowEvent(getTarget(), 528 iconify ? WindowEvent.WINDOW_ICONIFIED 529 : WindowEvent.WINDOW_DEICONIFIED); 530 postEvent(iconifyEvent); 531 532 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL; 533 postWindowStateChangedEvent(newWindowState); 534 535 // REMIND: RepaintManager doesn't repaint iconified windows and 536 // hence ignores any repaint request during deiconification. 537 // So, we need to repaint window explicitly when it becomes normal. 538 if (!iconify) { 539 repaintPeer(); 540 } 541 } 542 543 public void notifyZoom(boolean isZoomed) { 544 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL; 545 postWindowStateChangedEvent(newWindowState); 546 } 547 548 /** 549 * Called by the delegate when any part of the window should be repainted. 550 */ 551 public void notifyExpose(final int x, final int y, final int w, final int h) { 552 // TODO: there's a serious problem with Swing here: it handles 553 // the exposition internally, so SwingPaintEventDispatcher always 554 // return null from createPaintEvent(). However, we flush the 555 // back buffer here unconditionally, so some flickering may appear. 556 // A possible solution is to split postPaintEvent() into two parts, 557 // and override that part which is only called after if 558 // createPaintEvent() returned non-null value and flush the buffer 559 // from the overridden method 560 flushOnscreenGraphics(); 561 repaintPeer(new Rectangle(x, y, w, h)); 562 } 563 564 /** 565 * Called by the delegate when this window is moved/resized by user. 566 * There's no notifyReshape() in LWComponentPeer as the only 567 * components which could be resized by user are top-level windows. 568 */ 569 public final void notifyReshape(int x, int y, int w, int h) { 570 boolean moved = false; 571 boolean resized = false; 572 synchronized (getStateLock()) { 573 moved = (x != sysX) || (y != sysY); 574 resized = (w != sysW) || (h != sysH); 575 sysX = x; 576 sysY = y; 577 sysW = w; 578 sysH = h; 579 } 580 581 // Check if anything changed 582 if (!moved && !resized) { 583 return; 584 } 585 // First, update peer's bounds 586 setBounds(x, y, w, h, SET_BOUNDS, false, false); 587 588 // Second, update the graphics config and surface data 589 checkIfOnNewScreen(); 590 if (resized) { 591 replaceSurfaceData(); 592 flushOnscreenGraphics(); 593 } 594 595 // Third, COMPONENT_MOVED/COMPONENT_RESIZED events 596 if (moved) { 597 handleMove(x, y, true); 598 } 599 if (resized) { 600 handleResize(w, h,true); 601 } 602 } 603 604 private void clearBackground(final int w, final int h) { 605 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(), 606 getFont()); 607 if (g != null) { 608 try { 609 if (g instanceof Graphics2D) { 610 ((Graphics2D) g).setComposite(AlphaComposite.Src); 611 } 612 if (isTranslucent()) { 613 g.setColor(nonOpaqueBackground); 614 g.fillRect(0, 0, w, h); 615 } 616 if (g instanceof SunGraphics2D) { 617 SG2DConstraint((SunGraphics2D) g, getRegion()); 618 } 619 g.setColor(getBackground()); 620 g.fillRect(0, 0, w, h); 621 } finally { 622 g.dispose(); 623 } 624 } 625 } 626 627 public void notifyUpdateCursor() { 628 getLWToolkit().getCursorManager().updateCursorLater(this); 629 } 630 631 public void notifyActivation(boolean activation) { 632 changeFocusedWindow(activation); 633 } 634 635 // MouseDown in non-client area 636 public void notifyNCMouseDown() { 637 // Ungrab except for a click on a Dialog with the grabbing owner 638 if (grabbingWindow != null && 639 grabbingWindow != getOwnerFrameDialog(this)) 640 { 641 grabbingWindow.ungrab(); 642 } 643 } 644 645 // ---- EVENTS ---- // 646 647 /* 648 * Called by the delegate to dispatch the event to Java. Event 649 * coordinates are relative to non-client window are, i.e. the top-left 650 * point of the client area is (insets.top, insets.left). 651 */ 652 public void dispatchMouseEvent(int id, long when, int button, 653 int x, int y, int screenX, int screenY, 654 int modifiers, int clickCount, boolean popupTrigger, 655 byte[] bdata) 656 { 657 // TODO: fill "bdata" member of AWTEvent 658 Rectangle r = getBounds(); 659 // findPeerAt() expects parent coordinates 660 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y); 661 LWWindowPeer lastWindowPeer = 662 (lastMouseEventPeer != null) ? lastMouseEventPeer.getWindowPeerOrSelf() : null; 663 LWWindowPeer curWindowPeer = 664 (targetPeer != null) ? targetPeer.getWindowPeerOrSelf() : null; 665 666 if (id == MouseEvent.MOUSE_EXITED) { 667 // Sometimes we may get MOUSE_EXITED after lastMouseEventPeer is switched 668 // to a peer from another window. So we must first check if this peer is 669 // the same as lastWindowPeer 670 if (lastWindowPeer == this) { 671 if (isEnabled()) { 672 Point lp = lastMouseEventPeer.windowToLocal(x, y, 673 lastWindowPeer); 674 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 675 MouseEvent.MOUSE_EXITED, when, 676 modifiers, lp.x, lp.y, screenX, 677 screenY, clickCount, popupTrigger, 678 button)); 679 } 680 lastMouseEventPeer = null; 681 } 682 } else { 683 if (targetPeer != lastMouseEventPeer) { 684 685 if (id != MouseEvent.MOUSE_DRAGGED || lastMouseEventPeer == null) { 686 // lastMouseEventPeer may be null if mouse was out of Java windows 687 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) { 688 // Sometimes, MOUSE_EXITED is not sent by delegate (or is sent a bit 689 // later), in which case lastWindowPeer is another window 690 if (lastWindowPeer != this) { 691 Point oldp = lastMouseEventPeer.windowToLocal(x, y, lastWindowPeer); 692 // Additionally translate from this to lastWindowPeer coordinates 693 Rectangle lr = lastWindowPeer.getBounds(); 694 oldp.x += r.x - lr.x; 695 oldp.y += r.y - lr.y; 696 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 697 MouseEvent.MOUSE_EXITED, 698 when, modifiers, 699 oldp.x, oldp.y, screenX, screenY, 700 clickCount, popupTrigger, button)); 701 } else { 702 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this); 703 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 704 MouseEvent.MOUSE_EXITED, 705 when, modifiers, 706 oldp.x, oldp.y, screenX, screenY, 707 clickCount, popupTrigger, button)); 708 } 709 } 710 if (targetPeer != null && targetPeer.isEnabled() && id != MouseEvent.MOUSE_ENTERED) { 711 Point newp = targetPeer.windowToLocal(x, y, curWindowPeer); 712 postEvent(new MouseEvent(targetPeer.getTarget(), 713 MouseEvent.MOUSE_ENTERED, 714 when, modifiers, 715 newp.x, newp.y, screenX, screenY, 716 clickCount, popupTrigger, button)); 717 } 718 } 719 lastMouseEventPeer = targetPeer; 720 } 721 // TODO: fill "bdata" member of AWTEvent 722 723 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0; 724 int otherButtonsPressed = modifiers & ~eventButtonMask; 725 726 // For pressed/dragged/released events OS X treats other 727 // mouse buttons as if they were BUTTON2, so we do the same 728 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1; 729 730 // MOUSE_ENTERED/EXITED are generated for the components strictly under 731 // mouse even when dragging. That's why we first update lastMouseEventPeer 732 // based on initial targetPeer value and only then recalculate targetPeer 733 // for MOUSE_DRAGGED/RELEASED events 734 if (id == MouseEvent.MOUSE_PRESSED) { 735 736 // Ungrab only if this window is not an owned window of the grabbing one. 737 if (!isGrabbing() && grabbingWindow != null && 738 grabbingWindow != getOwnerFrameDialog(this)) 739 { 740 grabbingWindow.ungrab(); 741 } 742 if (otherButtonsPressed == 0) { 743 mouseClickButtons = eventButtonMask; 744 } else { 745 mouseClickButtons |= eventButtonMask; 746 } 747 748 mouseDownTarget[targetIdx] = targetPeer; 749 } else if (id == MouseEvent.MOUSE_DRAGGED) { 750 // Cocoa dragged event has the information about which mouse 751 // button is being dragged. Use it to determine the peer that 752 // should receive the dragged event. 753 targetPeer = mouseDownTarget[targetIdx]; 754 mouseClickButtons &= ~modifiers; 755 } else if (id == MouseEvent.MOUSE_RELEASED) { 756 // TODO: currently, mouse released event goes to the same component 757 // that received corresponding mouse pressed event. For most cases, 758 // it's OK, however, we need to make sure that our behavior is consistent 759 // with 1.6 for cases where component in question have been 760 // hidden/removed in between of mouse pressed/released events. 761 targetPeer = mouseDownTarget[targetIdx]; 762 763 if ((modifiers & eventButtonMask) == 0) { 764 mouseDownTarget[targetIdx] = null; 765 } 766 767 // mouseClickButtons is updated below, after MOUSE_CLICK is sent 768 } 769 770 // check if we receive mouseEvent from outside the window's bounds 771 // it can be either mouseDragged or mouseReleased 772 if (curWindowPeer == null) { 773 //TODO This can happen if this window is invisible. this is correct behavior in this case? 774 curWindowPeer = this; 775 } 776 if (targetPeer == null) { 777 //TODO This can happen if this window is invisible. this is correct behavior in this case? 778 targetPeer = this; 779 } 780 781 782 Point lp = targetPeer.windowToLocal(x, y, curWindowPeer); 783 if (targetPeer.isEnabled()) { 784 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id, 785 when, modifiers, lp.x, lp.y, 786 screenX, screenY, clickCount, 787 popupTrigger, button); 788 postEvent(event); 789 } 790 791 if (id == MouseEvent.MOUSE_RELEASED) { 792 if ((mouseClickButtons & eventButtonMask) != 0 793 && targetPeer.isEnabled()) { 794 postEvent(new MouseEvent(targetPeer.getTarget(), 795 MouseEvent.MOUSE_CLICKED, 796 when, modifiers, 797 lp.x, lp.y, screenX, screenY, 798 clickCount, popupTrigger, button)); 799 } 800 mouseClickButtons &= ~eventButtonMask; 801 } 802 } 803 notifyUpdateCursor(); 804 } 805 806 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers, 807 int scrollType, int scrollAmount, 808 int wheelRotation, double preciseWheelRotation, 809 byte[] bdata) 810 { 811 // TODO: could we just use the last mouse event target here? 812 Rectangle r = getBounds(); 813 // findPeerAt() expects parent coordinates 814 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y); 815 if (targetPeer == null || !targetPeer.isEnabled()) { 816 return; 817 } 818 819 Point lp = targetPeer.windowToLocal(x, y, this); 820 // TODO: fill "bdata" member of AWTEvent 821 // TODO: screenX/screenY 822 postEvent(new MouseWheelEvent(targetPeer.getTarget(), 823 MouseEvent.MOUSE_WHEEL, 824 when, modifiers, 825 lp.x, lp.y, 826 0, 0, /* screenX, Y */ 827 0 /* clickCount */, false /* popupTrigger */, 828 scrollType, scrollAmount, 829 wheelRotation, preciseWheelRotation)); 830 } 831 832 /* 833 * Called by the delegate when a key is pressed. 834 */ 835 public void dispatchKeyEvent(int id, long when, int modifiers, 836 int keyCode, char keyChar, int keyLocation) 837 { 838 LWComponentPeer focusOwner = 839 LWKeyboardFocusManagerPeer.getInstance(getAppContext()). 840 getFocusOwner(); 841 842 // Null focus owner may receive key event when 843 // application hides the focused window upon ESC press 844 // (AWT transfers/clears the focus owner) and pending ESC release 845 // may come to already hidden window. This check eliminates NPE. 846 if (focusOwner != null) { 847 KeyEvent event = 848 new KeyEvent(focusOwner.getTarget(), id, when, modifiers, 849 keyCode, keyChar, keyLocation); 850 focusOwner.postEvent(event); 851 } 852 } 853 854 855 // ---- UTILITY METHODS ---- // 856 857 private void postWindowStateChangedEvent(int newWindowState) { 858 if (getTarget() instanceof Frame) { 859 AWTAccessor.getFrameAccessor().setExtendedState( 860 (Frame)getTarget(), newWindowState); 861 } 862 WindowEvent stateChangedEvent = new WindowEvent(getTarget(), 863 WindowEvent.WINDOW_STATE_CHANGED, 864 windowState, newWindowState); 865 postEvent(stateChangedEvent); 866 windowState = newWindowState; 867 } 868 869 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) { 870 // TODO: this method can be implemented in a more 871 // efficient way by forwarding to the delegate 872 GraphicsDevice gd = gc.getDevice(); 873 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 874 GraphicsDevice[] gds = ge.getScreenDevices(); 875 for (int i = 0; i < gds.length; i++) { 876 if (gds[i] == gd) { 877 return i; 878 } 879 } 880 // Should never happen if gc is a screen device config 881 return 0; 882 } 883 884 /* 885 * This method is called when window's graphics config is changed from 886 * the app code (e.g. when the window is made non-opaque) or when 887 * the window is moved to another screen by user. 888 * 889 * Returns true if the graphics config has been changed, false otherwise. 890 */ 891 private boolean setGraphicsConfig(GraphicsConfiguration gc) { 892 synchronized (getStateLock()) { 893 if (graphicsConfig == gc) { 894 return false; 895 } 896 // If window's graphics config is changed from the app code, the 897 // config correspond to the same device as before; when the window 898 // is moved by user, graphicsDevice is updated in checkIfOnNewScreen(). 899 // In either case, there's nothing to do with screenOn here 900 graphicsConfig = gc; 901 } 902 // SurfaceData is replaced later in updateGraphicsData() 903 return true; 904 } 905 906 private void checkIfOnNewScreen() { 907 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice(); 908 synchronized (getStateLock()) { 909 if (graphicsDevice == newGraphicsDevice) { 910 return; 911 } 912 graphicsDevice = newGraphicsDevice; 913 } 914 915 // TODO: DisplayChangedListener stuff 916 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration(); 917 918 if (!setGraphicsConfig(newGC)) return; 919 920 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() { 921 public void run() { 922 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC); 923 } 924 }); 925 } 926 927 /* 928 * May be called by delegate to provide SD to Java2D code. 929 */ 930 public SurfaceData getSurfaceData() { 931 synchronized (surfaceDataLock) { 932 return surfaceData; 933 } 934 } 935 936 private void replaceSurfaceData() { 937 replaceSurfaceData(true); 938 } 939 940 private void replaceSurfaceData(boolean blit) { 941 replaceSurfaceData(backBufferCount, backBufferCaps, blit); 942 } 943 944 private void replaceSurfaceData(int newBackBufferCount, 945 BufferCapabilities newBackBufferCaps, 946 boolean blit) { 947 synchronized (surfaceDataLock) { 948 final SurfaceData oldData = getSurfaceData(); 949 surfaceData = platformWindow.replaceSurfaceData(); 950 // TODO: volatile image 951 // VolatileImage oldBB = backBuffer; 952 BufferedImage oldBB = backBuffer; 953 backBufferCount = newBackBufferCount; 954 backBufferCaps = newBackBufferCaps; 955 final Rectangle size = getSize(); 956 if (getSurfaceData() != null && oldData != getSurfaceData()) { 957 clearBackground(size.width, size.height); 958 } 959 960 if (blit) { 961 blitSurfaceData(oldData, getSurfaceData()); 962 } 963 964 if (oldData != null && oldData != getSurfaceData()) { 965 // TODO: drop oldData for D3D/WGL pipelines 966 // This can only happen when this peer is being created 967 oldData.flush(); 968 } 969 970 // TODO: volatile image 971 // backBuffer = (VolatileImage)delegate.createBackBuffer(); 972 backBuffer = (BufferedImage) platformWindow.createBackBuffer(); 973 if (backBuffer != null) { 974 Graphics g = backBuffer.getGraphics(); 975 try { 976 Rectangle r = getBounds(); 977 if (g instanceof Graphics2D) { 978 ((Graphics2D) g).setComposite(AlphaComposite.Src); 979 } 980 g.setColor(nonOpaqueBackground); 981 g.fillRect(0, 0, r.width, r.height); 982 if (g instanceof SunGraphics2D) { 983 SG2DConstraint((SunGraphics2D) g, getRegion()); 984 } 985 g.setColor(getBackground()); 986 g.fillRect(0, 0, r.width, r.height); 987 if (oldBB != null) { 988 // Draw the old back buffer to the new one 989 g.drawImage(oldBB, 0, 0, null); 990 oldBB.flush(); 991 } 992 } finally { 993 g.dispose(); 994 } 995 } 996 } 997 } 998 999 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) { 1000 //TODO blit. proof-of-concept 1001 if (src != dst && src != null && dst != null 1002 && !(dst instanceof NullSurfaceData) 1003 && !(src instanceof NullSurfaceData) 1004 && src.getSurfaceType().equals(dst.getSurfaceType())) { 1005 final Rectangle size = getSize(); 1006 final Blit blit = Blit.locate(src.getSurfaceType(), 1007 CompositeType.Src, 1008 dst.getSurfaceType()); 1009 if (blit != null) { 1010 blit.Blit(src, dst, AlphaComposite.Src, 1011 getRegion(), 0, 0, 0, 0, size.width, size.height); 1012 } 1013 } 1014 } 1015 1016 public int getBackBufferCount() { 1017 return backBufferCount; 1018 } 1019 1020 public BufferCapabilities getBackBufferCaps() { 1021 return backBufferCaps; 1022 } 1023 1024 /* 1025 * Request the window insets from the delegate and compares it 1026 * with the current one. This method is mostly called by the 1027 * delegate, e.g. when the window state is changed and insets 1028 * should be recalculated. 1029 * 1030 * This method may be called on the toolkit thread. 1031 */ 1032 public boolean updateInsets(Insets newInsets) { 1033 boolean changed = false; 1034 synchronized (getStateLock()) { 1035 changed = (insets.equals(newInsets)); 1036 insets = newInsets; 1037 } 1038 1039 if (changed) { 1040 replaceSurfaceData(); 1041 repaintPeer(); 1042 } 1043 1044 return changed; 1045 } 1046 1047 public static LWWindowPeer getWindowUnderCursor() { 1048 return lastMouseEventPeer != null ? lastMouseEventPeer.getWindowPeerOrSelf() : null; 1049 } 1050 1051 public static LWComponentPeer<?, ?> getPeerUnderCursor() { 1052 return lastMouseEventPeer; 1053 } 1054 1055 /* 1056 * Requests platform to set native focus on a frame/dialog. 1057 * In case of a simple window, triggers appropriate java focus change. 1058 */ 1059 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) { 1060 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1061 focusLog.fine("requesting native focus to " + this); 1062 } 1063 1064 if (!focusAllowedFor()) { 1065 focusLog.fine("focus is not allowed"); 1066 return false; 1067 } 1068 1069 if (platformWindow.rejectFocusRequest(cause)) { 1070 return false; 1071 } 1072 1073 Window currentActive = KeyboardFocusManager. 1074 getCurrentKeyboardFocusManager().getActiveWindow(); 1075 1076 // Make the owner active window. 1077 if (isSimpleWindow()) { 1078 LWWindowPeer owner = getOwnerFrameDialog(this); 1079 1080 // If owner is not natively active, request native 1081 // activation on it w/o sending events up to java. 1082 if (owner != null && !owner.platformWindow.isActive()) { 1083 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1084 focusLog.fine("requesting native focus to the owner " + owner); 1085 } 1086 LWWindowPeer currentActivePeer = (currentActive != null ? 1087 (LWWindowPeer)currentActive.getPeer() : null); 1088 1089 // Ensure the opposite is natively active and suppress sending events. 1090 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) { 1091 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1092 focusLog.fine("the opposite is " + currentActivePeer); 1093 } 1094 currentActivePeer.skipNextFocusChange = true; 1095 } 1096 owner.skipNextFocusChange = true; 1097 1098 owner.platformWindow.requestWindowFocus(); 1099 } 1100 1101 // DKFM will synthesize all the focus/activation events correctly. 1102 changeFocusedWindow(true); 1103 return true; 1104 1105 // In case the toplevel is active but not focused, change focus directly, 1106 // as requesting native focus on it will not have effect. 1107 } else if (getTarget() == currentActive && !getTarget().hasFocus()) { 1108 1109 changeFocusedWindow(true); 1110 return true; 1111 } 1112 return platformWindow.requestWindowFocus(); 1113 } 1114 1115 private boolean focusAllowedFor() { 1116 Window window = getTarget(); 1117 // TODO: check if modal blocked 1118 return window.isVisible() && window.isEnabled() && isFocusableWindow(); 1119 } 1120 1121 private boolean isFocusableWindow() { 1122 boolean focusable = getTarget().isFocusableWindow(); 1123 if (isSimpleWindow()) { 1124 LWWindowPeer ownerPeer = getOwnerFrameDialog(this); 1125 if (ownerPeer == null) { 1126 return false; 1127 } 1128 return focusable && ownerPeer.getTarget().isFocusableWindow(); 1129 } 1130 return focusable; 1131 } 1132 1133 public boolean isSimpleWindow() { 1134 Window window = getTarget(); 1135 return !(window instanceof Dialog || window instanceof Frame); 1136 } 1137 1138 /* 1139 * Changes focused window on java level. 1140 */ 1141 private void changeFocusedWindow(boolean becomesFocused) { 1142 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1143 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this); 1144 } 1145 if (skipNextFocusChange) { 1146 focusLog.fine("skipping focus change"); 1147 skipNextFocusChange = false; 1148 return; 1149 } 1150 if (!isFocusableWindow() && becomesFocused) { 1151 focusLog.fine("the window is not focusable"); 1152 return; 1153 } 1154 if (becomesFocused) { 1155 synchronized (getPeerTreeLock()) { 1156 if (blocker != null) { 1157 if (focusLog.isLoggable(PlatformLogger.FINEST)) { 1158 focusLog.finest("the window is blocked by " + blocker); 1159 } 1160 return; 1161 } 1162 } 1163 } 1164 1165 LWKeyboardFocusManagerPeer manager = LWKeyboardFocusManagerPeer. 1166 getInstance(getAppContext()); 1167 1168 Window oppositeWindow = becomesFocused ? manager.getCurrentFocusedWindow() : null; 1169 1170 // Note, the method is not called: 1171 // - when the opposite (gaining focus) window is an owned/owner window. 1172 // - for a simple window in any case. 1173 if (!becomesFocused && 1174 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this)) 1175 { 1176 focusLog.fine("ungrabbing on " + grabbingWindow); 1177 // ungrab a simple window if its owner looses activation. 1178 grabbingWindow.ungrab(); 1179 } 1180 1181 manager.setFocusedWindow(becomesFocused ? LWWindowPeer.this : null); 1182 1183 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS; 1184 WindowEvent windowEvent = new WindowEvent(getTarget(), eventID, oppositeWindow); 1185 1186 // TODO: wrap in SequencedEvent 1187 postEvent(windowEvent); 1188 } 1189 1190 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) { 1191 Window owner = (peer != null ? peer.getTarget().getOwner() : null); 1192 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) { 1193 owner = owner.getOwner(); 1194 } 1195 return owner != null ? (LWWindowPeer)owner.getPeer() : null; 1196 } 1197 1198 /** 1199 * Returns the foremost modal blocker of this window, or null. 1200 */ 1201 public LWWindowPeer getBlocker() { 1202 synchronized (getPeerTreeLock()) { 1203 LWWindowPeer blocker = this.blocker; 1204 if (blocker == null) { 1205 return null; 1206 } 1207 while (blocker.blocker != null) { 1208 blocker = blocker.blocker; 1209 } 1210 return blocker; 1211 } 1212 } 1213 1214 public void enterFullScreenMode() { 1215 platformWindow.enterFullScreenMode(); 1216 } 1217 1218 public void exitFullScreenMode() { 1219 platformWindow.exitFullScreenMode(); 1220 } 1221 1222 public long getLayerPtr() { 1223 return getPlatformWindow().getLayerPtr(); 1224 } 1225 1226 void grab() { 1227 if (grabbingWindow != null && !isGrabbing()) { 1228 grabbingWindow.ungrab(); 1229 } 1230 grabbingWindow = this; 1231 } 1232 1233 void ungrab() { 1234 if (isGrabbing()) { 1235 grabbingWindow = null; 1236 postEvent(new UngrabEvent(getTarget())); 1237 } 1238 } 1239 1240 private boolean isGrabbing() { 1241 return this == grabbingWindow; 1242 } 1243 1244 @Override 1245 public String toString() { 1246 return super.toString() + " [target is " + getTarget() + "]"; 1247 } 1248 }