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