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 private volatile boolean textured; 116 117 /** 118 * Current modal blocker or null. 119 * 120 * Synchronization: peerTreeLock. 121 */ 122 private LWWindowPeer blocker; 123 124 public LWWindowPeer(Window target, PlatformComponent platformComponent, 125 PlatformWindow platformWindow) 126 { 127 super(target, platformComponent); 128 this.platformWindow = platformWindow; 129 130 Window owner = target.getOwner(); 131 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null; 132 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null; 133 134 // The delegate.initialize() needs a non-null GC on X11. 135 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration(); 136 synchronized (getStateLock()) { 137 // graphicsConfig should be updated according to the real window 138 // bounds when the window is shown, see 4868278 139 this.graphicsConfig = gc; 140 } 141 142 if (!target.isFontSet()) { 143 target.setFont(DEFAULT_FONT); 144 } 145 146 if (!target.isBackgroundSet()) { 147 target.setBackground(SystemColor.window); 148 } else { 149 // first we check if user provided alpha for background. This is 150 // similar to what Apple's Java do. 151 // Since JDK7 we should rely on setOpacity() only. 152 // this.opacity = c.getAlpha(); 153 } 154 155 if (!target.isForegroundSet()) { 156 target.setForeground(SystemColor.windowText); 157 // we should not call setForeground because it will call a repaint 158 // which the peer may not be ready to do yet. 159 } 160 161 platformWindow.initialize(target, this, ownerDelegate); 162 } 163 164 @Override 165 void initializeImpl() { 166 super.initializeImpl(); 167 if (getTarget() instanceof Frame) { 168 setTitle(((Frame) getTarget()).getTitle()); 169 setState(((Frame) getTarget()).getExtendedState()); 170 } else if (getTarget() instanceof Dialog) { 171 setTitle(((Dialog) getTarget()).getTitle()); 172 } 173 174 setAlwaysOnTop(getTarget().isAlwaysOnTop()); 175 updateMinimumSize(); 176 177 final Shape shape = getTarget().getShape(); 178 if (shape != null) { 179 applyShape(Region.getInstance(shape, null)); 180 } 181 182 final float opacity = getTarget().getOpacity(); 183 if (opacity < 1.0f) { 184 setOpacity(opacity); 185 } 186 187 setOpaque(getTarget().isOpaque()); 188 189 updateInsets(platformWindow.getInsets()); 190 if (getSurfaceData() == null) { 191 replaceSurfaceData(false); 192 } 193 } 194 195 // Just a helper method 196 public PlatformWindow getPlatformWindow() { 197 return platformWindow; 198 } 199 200 @Override 201 protected LWWindowPeer getWindowPeerOrSelf() { 202 return this; 203 } 204 205 @Override 206 protected void initializeContainerPeer() { 207 // No-op as LWWindowPeer doesn't have any containerPeer 208 } 209 210 // ---- PEER METHODS ---- // 211 212 @Override 213 protected void disposeImpl() { 214 SurfaceData oldData = getSurfaceData(); 215 synchronized (surfaceDataLock){ 216 surfaceData = null; 217 } 218 if (oldData != null) { 219 oldData.invalidate(); 220 } 221 if (isGrabbing()) { 222 ungrab(); 223 } 224 destroyBuffers(); 225 platformWindow.dispose(); 226 super.disposeImpl(); 227 } 228 229 @Override 230 protected void setVisibleImpl(final boolean visible) { 231 super.setVisibleImpl(visible); 232 // TODO: update graphicsConfig, see 4868278 233 platformWindow.setVisible(visible); 234 if (isSimpleWindow()) { 235 LWKeyboardFocusManagerPeer manager = LWKeyboardFocusManagerPeer. 236 getInstance(getAppContext()); 237 238 if (visible) { 239 if (!getTarget().isAutoRequestFocus()) { 240 return; 241 } else { 242 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION); 243 } 244 // Focus the owner in case this window is focused. 245 } else if (manager.getCurrentFocusedWindow() == getTarget()) { 246 // Transfer focus to the owner. 247 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this); 248 if (owner != null) { 249 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION); 250 } 251 } 252 } 253 } 254 255 @Override 256 public GraphicsConfiguration getGraphicsConfiguration() { 257 return graphicsConfig; 258 } 259 260 @Override 261 public boolean updateGraphicsData(GraphicsConfiguration gc) { 262 setGraphicsConfig(gc); 263 return false; 264 } 265 266 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) { 267 if (getSurfaceData() == null) { 268 return null; 269 } 270 if (fg == null) { 271 fg = SystemColor.windowText; 272 } 273 if (bg == null) { 274 bg = SystemColor.window; 275 } 276 if (f == null) { 277 f = DEFAULT_FONT; 278 } 279 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f)); 280 } 281 282 @Override 283 public void createBuffers(int numBuffers, BufferCapabilities caps) 284 throws AWTException 285 { 286 try { 287 // Assume this method is never called with numBuffers <= 1, as 0 is 288 // unsupported, and 1 corresponds to a SingleBufferStrategy which 289 // doesn't depend on the peer. Screen is considered as a separate 290 // "buffer", that's why numBuffers - 1 291 assert numBuffers > 1; 292 293 replaceSurfaceData(numBuffers - 1, caps, false); 294 } catch (InvalidPipeException z) { 295 throw new AWTException(z.toString()); 296 } 297 } 298 299 @Override 300 public final Image getBackBuffer() { 301 synchronized (getStateLock()) { 302 return backBuffer; 303 } 304 } 305 306 @Override 307 public void flip(int x1, int y1, int x2, int y2, 308 BufferCapabilities.FlipContents flipAction) 309 { 310 platformWindow.flip(x1, y1, x2, y2, flipAction); 311 } 312 313 @Override 314 public final void destroyBuffers() { 315 final Image oldBB = getBackBuffer(); 316 synchronized (getStateLock()) { 317 backBuffer = null; 318 } 319 if (oldBB != null) { 320 oldBB.flush(); 321 } 322 } 323 324 @Override 325 public void setBounds(int x, int y, int w, int h, int op) { 326 if ((op & SET_CLIENT_SIZE) != 0) { 327 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here 328 // instead of pulling 'insets' field up to LWComponentPeer 329 // no need to add insets since Window's notion of width and height includes insets. 330 op &= ~SET_CLIENT_SIZE; 331 op |= SET_SIZE; 332 } 333 334 if (w < MINIMUM_WIDTH) { 335 w = MINIMUM_WIDTH; 336 } 337 if (h < MINIMUM_HEIGHT) { 338 h = MINIMUM_HEIGHT; 339 } 340 341 // Don't post ComponentMoved/Resized and Paint events 342 // until we've got a notification from the delegate 343 setBounds(x, y, w, h, op, false, false); 344 // Get updated bounds, so we don't have to handle 'op' here manually 345 Rectangle r = getBounds(); 346 platformWindow.setBounds(r.x, r.y, r.width, r.height); 347 } 348 349 @Override 350 public Point getLocationOnScreen() { 351 return platformWindow.getLocationOnScreen(); 352 } 353 354 /** 355 * Overridden from LWContainerPeer to return the correct insets. 356 * Insets are queried from the delegate and are kept up to date by 357 * requiering when needed (i.e. when the window geometry is changed). 358 */ 359 @Override 360 public Insets getInsets() { 361 synchronized (getStateLock()) { 362 return insets; 363 } 364 } 365 366 @Override 367 public FontMetrics getFontMetrics(Font f) { 368 // TODO: check for "use platform metrics" settings 369 return platformWindow.getFontMetrics(f); 370 } 371 372 @Override 373 public void toFront() { 374 platformWindow.toFront(); 375 } 376 377 @Override 378 public void toBack() { 379 platformWindow.toBack(); 380 } 381 382 @Override 383 public void setZOrder(ComponentPeer above) { 384 throw new RuntimeException("not implemented"); 385 } 386 387 @Override 388 public void setAlwaysOnTop(boolean value) { 389 platformWindow.setAlwaysOnTop(value); 390 } 391 392 @Override 393 public void updateFocusableWindowState() { 394 platformWindow.updateFocusableWindowState(); 395 } 396 397 @Override 398 public void setModalBlocked(Dialog blocker, boolean blocked) { 399 synchronized (getPeerTreeLock()) { 400 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null; 401 } 402 403 platformWindow.setModalBlocked(blocked); 404 } 405 406 @Override 407 public void updateMinimumSize() { 408 Dimension d = null; 409 if (getTarget().isMinimumSizeSet()) { 410 d = getTarget().getMinimumSize(); 411 } 412 if (d == null) { 413 d = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT); 414 } 415 platformWindow.setMinimumSize(d.width, d.height); 416 } 417 418 @Override 419 public void updateIconImages() { 420 getPlatformWindow().updateIconImages(); 421 } 422 423 @Override 424 public void setOpacity(float opacity) { 425 getPlatformWindow().setOpacity(opacity); 426 repaintPeer(); 427 } 428 429 @Override 430 public final void setOpaque(final boolean isOpaque) { 431 if (this.isOpaque != isOpaque) { 432 this.isOpaque = isOpaque; 433 updateOpaque(); 434 } 435 } 436 437 private void updateOpaque() { 438 getPlatformWindow().setOpaque(!isTranslucent()); 439 replaceSurfaceData(false); 440 repaintPeer(); 441 } 442 443 @Override 444 public void updateWindow() { 445 } 446 447 public final boolean isTextured() { 448 return textured; 449 } 450 451 public final void setTextured(final boolean isTextured) { 452 textured = isTextured; 453 } 454 455 public final boolean isTranslucent() { 456 synchronized (getStateLock()) { 457 /* 458 * Textured window is a special case of translucent window. 459 * The difference is only in nswindow background. So when we set 460 * texture property our peer became fully translucent. It doesn't 461 * fill background, create non opaque backbuffers and layer etc. 462 */ 463 return !isOpaque || isShaped() || isTextured(); 464 } 465 } 466 467 @Override 468 final void applyShapeImpl(final Region shape) { 469 super.applyShapeImpl(shape); 470 updateOpaque(); 471 } 472 473 @Override 474 public void repositionSecurityWarning() { 475 throw new RuntimeException("not implemented"); 476 } 477 478 // ---- FRAME PEER METHODS ---- // 479 480 @Override // FramePeer and DialogPeer 481 public void setTitle(String title) { 482 platformWindow.setTitle(title == null ? "" : title); 483 } 484 485 @Override 486 public void setMenuBar(MenuBar mb) { 487 platformWindow.setMenuBar(mb); 488 } 489 490 @Override // FramePeer and DialogPeer 491 public void setResizable(boolean resizable) { 492 platformWindow.setResizable(resizable); 493 } 494 495 @Override 496 public void setState(int state) { 497 platformWindow.setWindowState(state); 498 } 499 500 @Override 501 public int getState() { 502 return windowState; 503 } 504 505 @Override 506 public void setMaximizedBounds(Rectangle bounds) { 507 // TODO: not implemented 508 } 509 510 @Override 511 public void setBoundsPrivate(int x, int y, int width, int height) { 512 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK); 513 } 514 515 @Override 516 public Rectangle getBoundsPrivate() { 517 throw new RuntimeException("not implemented"); 518 } 519 520 // ---- DIALOG PEER METHODS ---- // 521 522 @Override 523 public void blockWindows(List<Window> windows) { 524 //TODO: LWX will probably need some collectJavaToplevels to speed this up 525 for (Window w : windows) { 526 WindowPeer wp = (WindowPeer)w.getPeer(); 527 if (wp != null) { 528 wp.setModalBlocked((Dialog)getTarget(), true); 529 } 530 } 531 } 532 533 // ---- PEER NOTIFICATIONS ---- // 534 535 public void notifyIconify(boolean iconify) { 536 //The toplevel target is Frame and states are applicable to it. 537 //Otherwise, the target is Window and it don't have state property. 538 //Hopefully, no such events are posted in the queue so consider the 539 //target as Frame in all cases. 540 541 // REMIND: should we send it anyway if the state not changed since last 542 // time? 543 WindowEvent iconifyEvent = new WindowEvent(getTarget(), 544 iconify ? WindowEvent.WINDOW_ICONIFIED 545 : WindowEvent.WINDOW_DEICONIFIED); 546 postEvent(iconifyEvent); 547 548 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL; 549 postWindowStateChangedEvent(newWindowState); 550 551 // REMIND: RepaintManager doesn't repaint iconified windows and 552 // hence ignores any repaint request during deiconification. 553 // So, we need to repaint window explicitly when it becomes normal. 554 if (!iconify) { 555 repaintPeer(); 556 } 557 } 558 559 public void notifyZoom(boolean isZoomed) { 560 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL; 561 postWindowStateChangedEvent(newWindowState); 562 } 563 564 /** 565 * Called by the delegate when any part of the window should be repainted. 566 */ 567 public void notifyExpose(final int x, final int y, final int w, final int h) { 568 // TODO: there's a serious problem with Swing here: it handles 569 // the exposition internally, so SwingPaintEventDispatcher always 570 // return null from createPaintEvent(). However, we flush the 571 // back buffer here unconditionally, so some flickering may appear. 572 // A possible solution is to split postPaintEvent() into two parts, 573 // and override that part which is only called after if 574 // createPaintEvent() returned non-null value and flush the buffer 575 // from the overridden method 576 flushOnscreenGraphics(); 577 repaintPeer(new Rectangle(x, y, w, h)); 578 } 579 580 /** 581 * Called by the delegate when this window is moved/resized by user. 582 * There's no notifyReshape() in LWComponentPeer as the only 583 * components which could be resized by user are top-level windows. 584 */ 585 public final void notifyReshape(int x, int y, int w, int h) { 586 boolean moved = false; 587 boolean resized = false; 588 synchronized (getStateLock()) { 589 moved = (x != sysX) || (y != sysY); 590 resized = (w != sysW) || (h != sysH); 591 sysX = x; 592 sysY = y; 593 sysW = w; 594 sysH = h; 595 } 596 597 // Check if anything changed 598 if (!moved && !resized) { 599 return; 600 } 601 // First, update peer's bounds 602 setBounds(x, y, w, h, SET_BOUNDS, false, false); 603 604 // Second, update the graphics config and surface data 605 checkIfOnNewScreen(); 606 if (resized) { 607 replaceSurfaceData(); 608 flushOnscreenGraphics(); 609 } 610 611 // Third, COMPONENT_MOVED/COMPONENT_RESIZED events 612 if (moved) { 613 handleMove(x, y, true); 614 } 615 if (resized) { 616 handleResize(w, h,true); 617 } 618 } 619 620 private void clearBackground(final int w, final int h) { 621 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(), 622 getFont()); 623 if (g != null) { 624 try { 625 if (g instanceof Graphics2D) { 626 ((Graphics2D) g).setComposite(AlphaComposite.Src); 627 } 628 if (isTranslucent()) { 629 g.setColor(nonOpaqueBackground); 630 g.fillRect(0, 0, w, h); 631 } 632 if (!isTextured()) { 633 if (g instanceof SunGraphics2D) { 634 SG2DConstraint((SunGraphics2D) g, getRegion()); 635 } 636 g.setColor(getBackground()); 637 g.fillRect(0, 0, w, h); 638 } 639 } finally { 640 g.dispose(); 641 } 642 } 643 } 644 645 public void notifyUpdateCursor() { 646 getLWToolkit().getCursorManager().updateCursorLater(this); 647 } 648 649 public void notifyActivation(boolean activation) { 650 changeFocusedWindow(activation); 651 } 652 653 // MouseDown in non-client area 654 public void notifyNCMouseDown() { 655 // Ungrab except for a click on a Dialog with the grabbing owner 656 if (grabbingWindow != null && 657 grabbingWindow != getOwnerFrameDialog(this)) 658 { 659 grabbingWindow.ungrab(); 660 } 661 } 662 663 // ---- EVENTS ---- // 664 665 /* 666 * Called by the delegate to dispatch the event to Java. Event 667 * coordinates are relative to non-client window are, i.e. the top-left 668 * point of the client area is (insets.top, insets.left). 669 */ 670 public void dispatchMouseEvent(int id, long when, int button, 671 int x, int y, int screenX, int screenY, 672 int modifiers, int clickCount, boolean popupTrigger, 673 byte[] bdata) 674 { 675 // TODO: fill "bdata" member of AWTEvent 676 Rectangle r = getBounds(); 677 // findPeerAt() expects parent coordinates 678 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y); 679 LWWindowPeer lastWindowPeer = 680 (lastMouseEventPeer != null) ? lastMouseEventPeer.getWindowPeerOrSelf() : null; 681 LWWindowPeer curWindowPeer = 682 (targetPeer != null) ? targetPeer.getWindowPeerOrSelf() : null; 683 684 if (id == MouseEvent.MOUSE_EXITED) { 685 // Sometimes we may get MOUSE_EXITED after lastMouseEventPeer is switched 686 // to a peer from another window. So we must first check if this peer is 687 // the same as lastWindowPeer 688 if (lastWindowPeer == this) { 689 if (isEnabled()) { 690 Point lp = lastMouseEventPeer.windowToLocal(x, y, 691 lastWindowPeer); 692 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 693 MouseEvent.MOUSE_EXITED, when, 694 modifiers, lp.x, lp.y, screenX, 695 screenY, clickCount, popupTrigger, 696 button)); 697 } 698 lastMouseEventPeer = null; 699 } 700 } else { 701 if (targetPeer != lastMouseEventPeer) { 702 703 if (id != MouseEvent.MOUSE_DRAGGED || lastMouseEventPeer == null) { 704 // lastMouseEventPeer may be null if mouse was out of Java windows 705 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) { 706 // Sometimes, MOUSE_EXITED is not sent by delegate (or is sent a bit 707 // later), in which case lastWindowPeer is another window 708 if (lastWindowPeer != this) { 709 Point oldp = lastMouseEventPeer.windowToLocal(x, y, lastWindowPeer); 710 // Additionally translate from this to lastWindowPeer coordinates 711 Rectangle lr = lastWindowPeer.getBounds(); 712 oldp.x += r.x - lr.x; 713 oldp.y += r.y - lr.y; 714 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 715 MouseEvent.MOUSE_EXITED, 716 when, modifiers, 717 oldp.x, oldp.y, screenX, screenY, 718 clickCount, popupTrigger, button)); 719 } else { 720 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this); 721 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(), 722 MouseEvent.MOUSE_EXITED, 723 when, modifiers, 724 oldp.x, oldp.y, screenX, screenY, 725 clickCount, popupTrigger, button)); 726 } 727 } 728 if (targetPeer != null && targetPeer.isEnabled() && id != MouseEvent.MOUSE_ENTERED) { 729 Point newp = targetPeer.windowToLocal(x, y, curWindowPeer); 730 postEvent(new MouseEvent(targetPeer.getTarget(), 731 MouseEvent.MOUSE_ENTERED, 732 when, modifiers, 733 newp.x, newp.y, screenX, screenY, 734 clickCount, popupTrigger, button)); 735 } 736 } 737 lastMouseEventPeer = targetPeer; 738 } 739 // TODO: fill "bdata" member of AWTEvent 740 741 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0; 742 int otherButtonsPressed = modifiers & ~eventButtonMask; 743 744 // For pressed/dragged/released events OS X treats other 745 // mouse buttons as if they were BUTTON2, so we do the same 746 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1; 747 748 // MOUSE_ENTERED/EXITED are generated for the components strictly under 749 // mouse even when dragging. That's why we first update lastMouseEventPeer 750 // based on initial targetPeer value and only then recalculate targetPeer 751 // for MOUSE_DRAGGED/RELEASED events 752 if (id == MouseEvent.MOUSE_PRESSED) { 753 754 // Ungrab only if this window is not an owned window of the grabbing one. 755 if (!isGrabbing() && grabbingWindow != null && 756 grabbingWindow != getOwnerFrameDialog(this)) 757 { 758 grabbingWindow.ungrab(); 759 } 760 if (otherButtonsPressed == 0) { 761 mouseClickButtons = eventButtonMask; 762 } else { 763 mouseClickButtons |= eventButtonMask; 764 } 765 766 mouseDownTarget[targetIdx] = targetPeer; 767 } else if (id == MouseEvent.MOUSE_DRAGGED) { 768 // Cocoa dragged event has the information about which mouse 769 // button is being dragged. Use it to determine the peer that 770 // should receive the dragged event. 771 targetPeer = mouseDownTarget[targetIdx]; 772 mouseClickButtons &= ~modifiers; 773 } else if (id == MouseEvent.MOUSE_RELEASED) { 774 // TODO: currently, mouse released event goes to the same component 775 // that received corresponding mouse pressed event. For most cases, 776 // it's OK, however, we need to make sure that our behavior is consistent 777 // with 1.6 for cases where component in question have been 778 // hidden/removed in between of mouse pressed/released events. 779 targetPeer = mouseDownTarget[targetIdx]; 780 781 if ((modifiers & eventButtonMask) == 0) { 782 mouseDownTarget[targetIdx] = null; 783 } 784 785 // mouseClickButtons is updated below, after MOUSE_CLICK is sent 786 } 787 788 // check if we receive mouseEvent from outside the window's bounds 789 // it can be either mouseDragged or mouseReleased 790 if (curWindowPeer == null) { 791 //TODO This can happen if this window is invisible. this is correct behavior in this case? 792 curWindowPeer = this; 793 } 794 if (targetPeer == null) { 795 //TODO This can happen if this window is invisible. this is correct behavior in this case? 796 targetPeer = this; 797 } 798 799 800 Point lp = targetPeer.windowToLocal(x, y, curWindowPeer); 801 if (targetPeer.isEnabled()) { 802 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id, 803 when, modifiers, lp.x, lp.y, 804 screenX, screenY, clickCount, 805 popupTrigger, button); 806 postEvent(event); 807 } 808 809 if (id == MouseEvent.MOUSE_RELEASED) { 810 if ((mouseClickButtons & eventButtonMask) != 0 811 && targetPeer.isEnabled()) { 812 postEvent(new MouseEvent(targetPeer.getTarget(), 813 MouseEvent.MOUSE_CLICKED, 814 when, modifiers, 815 lp.x, lp.y, screenX, screenY, 816 clickCount, popupTrigger, button)); 817 } 818 mouseClickButtons &= ~eventButtonMask; 819 } 820 } 821 notifyUpdateCursor(); 822 } 823 824 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers, 825 int scrollType, int scrollAmount, 826 int wheelRotation, double preciseWheelRotation, 827 byte[] bdata) 828 { 829 // TODO: could we just use the last mouse event target here? 830 Rectangle r = getBounds(); 831 // findPeerAt() expects parent coordinates 832 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y); 833 if (targetPeer == null || !targetPeer.isEnabled()) { 834 return; 835 } 836 837 Point lp = targetPeer.windowToLocal(x, y, this); 838 // TODO: fill "bdata" member of AWTEvent 839 // TODO: screenX/screenY 840 postEvent(new MouseWheelEvent(targetPeer.getTarget(), 841 MouseEvent.MOUSE_WHEEL, 842 when, modifiers, 843 lp.x, lp.y, 844 0, 0, /* screenX, Y */ 845 0 /* clickCount */, false /* popupTrigger */, 846 scrollType, scrollAmount, 847 wheelRotation, preciseWheelRotation)); 848 } 849 850 /* 851 * Called by the delegate when a key is pressed. 852 */ 853 public void dispatchKeyEvent(int id, long when, int modifiers, 854 int keyCode, char keyChar, int keyLocation) 855 { 856 LWComponentPeer focusOwner = 857 LWKeyboardFocusManagerPeer.getInstance(getAppContext()). 858 getFocusOwner(); 859 860 // Null focus owner may receive key event when 861 // application hides the focused window upon ESC press 862 // (AWT transfers/clears the focus owner) and pending ESC release 863 // may come to already hidden window. This check eliminates NPE. 864 if (focusOwner != null) { 865 KeyEvent event = 866 new KeyEvent(focusOwner.getTarget(), id, when, modifiers, 867 keyCode, keyChar, keyLocation); 868 focusOwner.postEvent(event); 869 } 870 } 871 872 873 // ---- UTILITY METHODS ---- // 874 875 private void postWindowStateChangedEvent(int newWindowState) { 876 if (getTarget() instanceof Frame) { 877 AWTAccessor.getFrameAccessor().setExtendedState( 878 (Frame)getTarget(), newWindowState); 879 } 880 WindowEvent stateChangedEvent = new WindowEvent(getTarget(), 881 WindowEvent.WINDOW_STATE_CHANGED, 882 windowState, newWindowState); 883 postEvent(stateChangedEvent); 884 windowState = newWindowState; 885 } 886 887 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) { 888 // TODO: this method can be implemented in a more 889 // efficient way by forwarding to the delegate 890 GraphicsDevice gd = gc.getDevice(); 891 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); 892 GraphicsDevice[] gds = ge.getScreenDevices(); 893 for (int i = 0; i < gds.length; i++) { 894 if (gds[i] == gd) { 895 return i; 896 } 897 } 898 // Should never happen if gc is a screen device config 899 return 0; 900 } 901 902 /* 903 * This method is called when window's graphics config is changed from 904 * the app code (e.g. when the window is made non-opaque) or when 905 * the window is moved to another screen by user. 906 * 907 * Returns true if the graphics config has been changed, false otherwise. 908 */ 909 private boolean setGraphicsConfig(GraphicsConfiguration gc) { 910 synchronized (getStateLock()) { 911 if (graphicsConfig == gc) { 912 return false; 913 } 914 // If window's graphics config is changed from the app code, the 915 // config correspond to the same device as before; when the window 916 // is moved by user, graphicsDevice is updated in checkIfOnNewScreen(). 917 // In either case, there's nothing to do with screenOn here 918 graphicsConfig = gc; 919 } 920 // SurfaceData is replaced later in updateGraphicsData() 921 return true; 922 } 923 924 private void checkIfOnNewScreen() { 925 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice(); 926 synchronized (getStateLock()) { 927 if (graphicsDevice == newGraphicsDevice) { 928 return; 929 } 930 graphicsDevice = newGraphicsDevice; 931 } 932 933 // TODO: DisplayChangedListener stuff 934 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration(); 935 936 if (!setGraphicsConfig(newGC)) return; 937 938 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() { 939 public void run() { 940 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC); 941 } 942 }); 943 } 944 945 /* 946 * May be called by delegate to provide SD to Java2D code. 947 */ 948 public SurfaceData getSurfaceData() { 949 synchronized (surfaceDataLock) { 950 return surfaceData; 951 } 952 } 953 954 private void replaceSurfaceData() { 955 replaceSurfaceData(true); 956 } 957 958 private void replaceSurfaceData(boolean blit) { 959 replaceSurfaceData(backBufferCount, backBufferCaps, blit); 960 } 961 962 private void replaceSurfaceData(int newBackBufferCount, 963 BufferCapabilities newBackBufferCaps, 964 boolean blit) { 965 synchronized (surfaceDataLock) { 966 final SurfaceData oldData = getSurfaceData(); 967 surfaceData = platformWindow.replaceSurfaceData(); 968 // TODO: volatile image 969 // VolatileImage oldBB = backBuffer; 970 BufferedImage oldBB = backBuffer; 971 backBufferCount = newBackBufferCount; 972 backBufferCaps = newBackBufferCaps; 973 final Rectangle size = getSize(); 974 if (getSurfaceData() != null && oldData != getSurfaceData()) { 975 clearBackground(size.width, size.height); 976 } 977 978 if (blit) { 979 blitSurfaceData(oldData, getSurfaceData()); 980 } 981 982 if (oldData != null && oldData != getSurfaceData()) { 983 // TODO: drop oldData for D3D/WGL pipelines 984 // This can only happen when this peer is being created 985 oldData.flush(); 986 } 987 988 // TODO: volatile image 989 // backBuffer = (VolatileImage)delegate.createBackBuffer(); 990 backBuffer = (BufferedImage) platformWindow.createBackBuffer(); 991 if (backBuffer != null) { 992 Graphics g = backBuffer.getGraphics(); 993 try { 994 Rectangle r = getBounds(); 995 if (g instanceof Graphics2D) { 996 ((Graphics2D) g).setComposite(AlphaComposite.Src); 997 } 998 g.setColor(nonOpaqueBackground); 999 g.fillRect(0, 0, r.width, r.height); 1000 if (g instanceof SunGraphics2D) { 1001 SG2DConstraint((SunGraphics2D) g, getRegion()); 1002 } 1003 if (!isTextured()) { 1004 g.setColor(getBackground()); 1005 g.fillRect(0, 0, r.width, r.height); 1006 } 1007 if (oldBB != null) { 1008 // Draw the old back buffer to the new one 1009 g.drawImage(oldBB, 0, 0, null); 1010 oldBB.flush(); 1011 } 1012 } finally { 1013 g.dispose(); 1014 } 1015 } 1016 } 1017 } 1018 1019 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) { 1020 //TODO blit. proof-of-concept 1021 if (src != dst && src != null && dst != null 1022 && !(dst instanceof NullSurfaceData) 1023 && !(src instanceof NullSurfaceData) 1024 && src.getSurfaceType().equals(dst.getSurfaceType())) { 1025 final Rectangle size = getSize(); 1026 final Blit blit = Blit.locate(src.getSurfaceType(), 1027 CompositeType.Src, 1028 dst.getSurfaceType()); 1029 if (blit != null) { 1030 blit.Blit(src, dst, AlphaComposite.Src, 1031 getRegion(), 0, 0, 0, 0, size.width, size.height); 1032 } 1033 } 1034 } 1035 1036 public int getBackBufferCount() { 1037 return backBufferCount; 1038 } 1039 1040 public BufferCapabilities getBackBufferCaps() { 1041 return backBufferCaps; 1042 } 1043 1044 /* 1045 * Request the window insets from the delegate and compares it 1046 * with the current one. This method is mostly called by the 1047 * delegate, e.g. when the window state is changed and insets 1048 * should be recalculated. 1049 * 1050 * This method may be called on the toolkit thread. 1051 */ 1052 public boolean updateInsets(Insets newInsets) { 1053 boolean changed = false; 1054 synchronized (getStateLock()) { 1055 changed = (insets.equals(newInsets)); 1056 insets = newInsets; 1057 } 1058 1059 if (changed) { 1060 replaceSurfaceData(); 1061 repaintPeer(); 1062 } 1063 1064 return changed; 1065 } 1066 1067 public static LWWindowPeer getWindowUnderCursor() { 1068 return lastMouseEventPeer != null ? lastMouseEventPeer.getWindowPeerOrSelf() : null; 1069 } 1070 1071 public static LWComponentPeer<?, ?> getPeerUnderCursor() { 1072 return lastMouseEventPeer; 1073 } 1074 1075 /* 1076 * Requests platform to set native focus on a frame/dialog. 1077 * In case of a simple window, triggers appropriate java focus change. 1078 */ 1079 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) { 1080 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1081 focusLog.fine("requesting native focus to " + this); 1082 } 1083 1084 if (!focusAllowedFor()) { 1085 focusLog.fine("focus is not allowed"); 1086 return false; 1087 } 1088 1089 if (platformWindow.rejectFocusRequest(cause)) { 1090 return false; 1091 } 1092 1093 Window currentActive = KeyboardFocusManager. 1094 getCurrentKeyboardFocusManager().getActiveWindow(); 1095 1096 // Make the owner active window. 1097 if (isSimpleWindow()) { 1098 LWWindowPeer owner = getOwnerFrameDialog(this); 1099 1100 // If owner is not natively active, request native 1101 // activation on it w/o sending events up to java. 1102 if (owner != null && !owner.platformWindow.isActive()) { 1103 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1104 focusLog.fine("requesting native focus to the owner " + owner); 1105 } 1106 LWWindowPeer currentActivePeer = (currentActive != null ? 1107 (LWWindowPeer)currentActive.getPeer() : null); 1108 1109 // Ensure the opposite is natively active and suppress sending events. 1110 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) { 1111 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1112 focusLog.fine("the opposite is " + currentActivePeer); 1113 } 1114 currentActivePeer.skipNextFocusChange = true; 1115 } 1116 owner.skipNextFocusChange = true; 1117 1118 owner.platformWindow.requestWindowFocus(); 1119 } 1120 1121 // DKFM will synthesize all the focus/activation events correctly. 1122 changeFocusedWindow(true); 1123 return true; 1124 1125 // In case the toplevel is active but not focused, change focus directly, 1126 // as requesting native focus on it will not have effect. 1127 } else if (getTarget() == currentActive && !getTarget().hasFocus()) { 1128 1129 changeFocusedWindow(true); 1130 return true; 1131 } 1132 return platformWindow.requestWindowFocus(); 1133 } 1134 1135 private boolean focusAllowedFor() { 1136 Window window = getTarget(); 1137 // TODO: check if modal blocked 1138 return window.isVisible() && window.isEnabled() && isFocusableWindow(); 1139 } 1140 1141 private boolean isFocusableWindow() { 1142 boolean focusable = getTarget().isFocusableWindow(); 1143 if (isSimpleWindow()) { 1144 LWWindowPeer ownerPeer = getOwnerFrameDialog(this); 1145 if (ownerPeer == null) { 1146 return false; 1147 } 1148 return focusable && ownerPeer.getTarget().isFocusableWindow(); 1149 } 1150 return focusable; 1151 } 1152 1153 public boolean isSimpleWindow() { 1154 Window window = getTarget(); 1155 return !(window instanceof Dialog || window instanceof Frame); 1156 } 1157 1158 /* 1159 * Changes focused window on java level. 1160 */ 1161 private void changeFocusedWindow(boolean becomesFocused) { 1162 if (focusLog.isLoggable(PlatformLogger.FINE)) { 1163 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this); 1164 } 1165 if (skipNextFocusChange) { 1166 focusLog.fine("skipping focus change"); 1167 skipNextFocusChange = false; 1168 return; 1169 } 1170 if (!isFocusableWindow() && becomesFocused) { 1171 focusLog.fine("the window is not focusable"); 1172 return; 1173 } 1174 if (becomesFocused) { 1175 synchronized (getPeerTreeLock()) { 1176 if (blocker != null) { 1177 if (focusLog.isLoggable(PlatformLogger.FINEST)) { 1178 focusLog.finest("the window is blocked by " + blocker); 1179 } 1180 return; 1181 } 1182 } 1183 } 1184 1185 LWKeyboardFocusManagerPeer manager = LWKeyboardFocusManagerPeer. 1186 getInstance(getAppContext()); 1187 1188 Window oppositeWindow = becomesFocused ? manager.getCurrentFocusedWindow() : null; 1189 1190 // Note, the method is not called: 1191 // - when the opposite (gaining focus) window is an owned/owner window. 1192 // - for a simple window in any case. 1193 if (!becomesFocused && 1194 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this)) 1195 { 1196 focusLog.fine("ungrabbing on " + grabbingWindow); 1197 // ungrab a simple window if its owner looses activation. 1198 grabbingWindow.ungrab(); 1199 } 1200 1201 manager.setFocusedWindow(becomesFocused ? LWWindowPeer.this : null); 1202 1203 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS; 1204 WindowEvent windowEvent = new WindowEvent(getTarget(), eventID, oppositeWindow); 1205 1206 // TODO: wrap in SequencedEvent 1207 postEvent(windowEvent); 1208 } 1209 1210 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) { 1211 Window owner = (peer != null ? peer.getTarget().getOwner() : null); 1212 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) { 1213 owner = owner.getOwner(); 1214 } 1215 return owner != null ? (LWWindowPeer)owner.getPeer() : null; 1216 } 1217 1218 /** 1219 * Returns the foremost modal blocker of this window, or null. 1220 */ 1221 public LWWindowPeer getBlocker() { 1222 synchronized (getPeerTreeLock()) { 1223 LWWindowPeer blocker = this.blocker; 1224 if (blocker == null) { 1225 return null; 1226 } 1227 while (blocker.blocker != null) { 1228 blocker = blocker.blocker; 1229 } 1230 return blocker; 1231 } 1232 } 1233 1234 public void enterFullScreenMode() { 1235 platformWindow.enterFullScreenMode(); 1236 } 1237 1238 public void exitFullScreenMode() { 1239 platformWindow.exitFullScreenMode(); 1240 } 1241 1242 public long getLayerPtr() { 1243 return getPlatformWindow().getLayerPtr(); 1244 } 1245 1246 void grab() { 1247 if (grabbingWindow != null && !isGrabbing()) { 1248 grabbingWindow.ungrab(); 1249 } 1250 grabbingWindow = this; 1251 } 1252 1253 void ungrab() { 1254 if (isGrabbing()) { 1255 grabbingWindow = null; 1256 postEvent(new UngrabEvent(getTarget())); 1257 } 1258 } 1259 1260 private boolean isGrabbing() { 1261 return this == grabbingWindow; 1262 } 1263 1264 @Override 1265 public String toString() { 1266 return super.toString() + " [target is " + getTarget() + "]"; 1267 } 1268 }