1 /*
2 * Copyright (c) 2011, 2015, 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.peer.*;
31 import java.util.List;
32
33 import javax.swing.*;
34
35 import sun.awt.*;
36 import sun.awt.AWTAccessor.ComponentAccessor;
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 FramePeer, DialogPeer, FullScreenCapable, DisplayChangedListener, PlatformEventNotifier
46 {
47 public enum PeerType {
48 SIMPLEWINDOW,
49 FRAME,
50 DIALOG,
51 EMBEDDED_FRAME,
52 VIEW_EMBEDDED_FRAME,
53 LW_FRAME
54 }
55
56 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
57
58 private final PlatformWindow platformWindow;
59
60 private static final int MINIMUM_WIDTH = 1;
61 private static final int MINIMUM_HEIGHT = 1;
62
63 private Insets insets = new Insets(0, 0, 0, 0);
64 private Rectangle maximizedBounds;
65
66 private GraphicsDevice graphicsDevice;
67 private GraphicsConfiguration graphicsConfig;
68
69 private SurfaceData surfaceData;
70 private final Object surfaceDataLock = new Object();
71
72 private volatile int windowState = Frame.NORMAL;
73
74 // check that the mouse is over the window
75 private volatile boolean isMouseOver = false;
76
77 // A peer where the last mouse event came to. Used by cursor manager to
78 // find the component under cursor
79 private static volatile LWComponentPeer<?, ?> lastCommonMouseEventPeer;
80
81 // A peer where the last mouse event came to. Used to generate
82 // MOUSE_ENTERED/EXITED notifications
83 private volatile LWComponentPeer<?, ?> lastMouseEventPeer;
84
85 // Peers where all dragged/released events should come to,
86 // depending on what mouse button is being dragged according to Cocoa
87 private static final LWComponentPeer<?, ?>[] mouseDownTarget = new LWComponentPeer<?, ?>[3];
88
89 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
90 // on MOUSE_RELEASE. Click events are only generated if there were no drag
91 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
92 private static int mouseClickButtons = 0;
93
94 private volatile boolean isOpaque = true;
95
96 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
97
98 private static LWWindowPeer grabbingWindow;
99
100 private volatile boolean skipNextFocusChange;
101
102 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
103
104 private volatile boolean textured;
105
106 private final PeerType peerType;
107
108 private final SecurityWarningWindow warningWindow;
109
110 private volatile boolean targetFocusable;
111
112 /**
113 * Current modal blocker or null.
114 *
115 * Synchronization: peerTreeLock.
116 */
117 private LWWindowPeer blocker;
118
119 public LWWindowPeer(Window target, PlatformComponent platformComponent,
120 PlatformWindow platformWindow, PeerType peerType)
121 {
122 super(target, platformComponent);
123 this.platformWindow = platformWindow;
124 this.peerType = peerType;
125
126 Window owner = target.getOwner();
127 LWWindowPeer ownerPeer = owner == null ? null :
128 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
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 }
151
152 if (!target.isForegroundSet()) {
153 target.setForeground(SystemColor.windowText);
154 // we should not call setForeground because it will call a repaint
155 // which the peer may not be ready to do yet.
156 }
157
158 platformWindow.initialize(target, this, ownerDelegate);
159
160 // Init warning window(for applets)
161 SecurityWarningWindow warn = null;
162 if (target.getWarningString() != null) {
163 // accessSystemTray permission allows to display TrayIcon, TrayIcon tooltip
164 // and TrayIcon balloon windows without a warning window.
165 if (!AWTAccessor.getWindowAccessor().isTrayIconWindow(target)) {
166 LWToolkit toolkit = (LWToolkit)Toolkit.getDefaultToolkit();
167 warn = toolkit.createSecurityWarning(target, this);
168 }
169 }
170
171 warningWindow = warn;
172 }
173
174 @Override
175 void initializeImpl() {
176 super.initializeImpl();
177
178
179 if (getTarget() instanceof Frame) {
180 Frame frame = (Frame) getTarget();
181 setTitle(frame.getTitle());
182 setState(frame.getExtendedState());
183 setMaximizedBounds(frame.getMaximizedBounds());
184 } else if (getTarget() instanceof Dialog) {
185 setTitle(((Dialog) getTarget()).getTitle());
186 }
187
188 updateAlwaysOnTopState();
189 updateMinimumSize();
190
191 final Shape shape = getTarget().getShape();
192 if (shape != null) {
193 applyShape(Region.getInstance(shape, null));
194 }
195
196 final float opacity = getTarget().getOpacity();
197 if (opacity < 1.0f) {
198 setOpacity(opacity);
199 }
200
201 setOpaque(getTarget().isOpaque());
202
203 updateInsets(platformWindow.getInsets());
204 if (getSurfaceData() == null) {
205 replaceSurfaceData(false);
206 }
207 activateDisplayListener();
208 }
209
210 // Just a helper method
211 @Override
212 public PlatformWindow getPlatformWindow() {
213 return platformWindow;
214 }
215
216 @Override
217 protected LWWindowPeer getWindowPeerOrSelf() {
218 return this;
219 }
220
221 // ---- PEER METHODS ---- //
222
223 @Override
224 protected void disposeImpl() {
225 deactivateDisplayListener();
226 SurfaceData oldData = getSurfaceData();
227 synchronized (surfaceDataLock){
228 surfaceData = null;
229 }
230 if (oldData != null) {
231 oldData.invalidate();
232 }
233 if (isGrabbing()) {
234 ungrab();
235 }
236 if (warningWindow != null) {
237 warningWindow.dispose();
238 }
239
240 platformWindow.dispose();
241 super.disposeImpl();
242 }
243
244 @Override
245 protected void setVisibleImpl(final boolean visible) {
246 if (!visible && warningWindow != null) {
247 warningWindow.setVisible(false, false);
248 }
249 updateFocusableWindowState();
250 super.setVisibleImpl(visible);
251 // TODO: update graphicsConfig, see 4868278
252 platformWindow.setVisible(visible);
253 if (isSimpleWindow()) {
254 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
255 if (visible) {
256 if (!getTarget().isAutoRequestFocus()) {
257 return;
258 } else {
259 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
260 }
261 // Focus the owner in case this window is focused.
262 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
263 // Transfer focus to the owner.
264 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
265 if (owner != null) {
266 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
267 }
268 }
269 }
270 }
271
272 @Override
273 public final GraphicsConfiguration getGraphicsConfiguration() {
274 synchronized (getStateLock()) {
275 return graphicsConfig;
276 }
277 }
278
279 @Override
280 public boolean updateGraphicsData(GraphicsConfiguration gc) {
281 setGraphicsConfig(gc);
282 return false;
283 }
284
285 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
286 if (getSurfaceData() == null) {
287 return null;
288 }
289 if (fg == null) {
290 fg = SystemColor.windowText;
291 }
292 if (bg == null) {
293 bg = SystemColor.window;
294 }
295 if (f == null) {
296 f = DEFAULT_FONT;
297 }
298 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
299 }
300
301 @Override
302 public void setBounds(int x, int y, int w, int h, int op) {
303
304 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
305 return;
306 }
307
308 if ((op & SET_CLIENT_SIZE) != 0) {
309 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
310 // instead of pulling 'insets' field up to LWComponentPeer
311 // no need to add insets since Window's notion of width and height includes insets.
312 op &= ~SET_CLIENT_SIZE;
313 op |= SET_SIZE;
314 }
315
316 // Don't post ComponentMoved/Resized and Paint events
317 // until we've got a notification from the delegate
318 Rectangle cb = constrainBounds(x, y, w, h);
319
320 Rectangle newBounds = new Rectangle(getBounds());
321 if ((op & (SET_LOCATION | SET_BOUNDS)) != 0) {
322 newBounds.x = cb.x;
323 newBounds.y = cb.y;
324 }
325 if ((op & (SET_SIZE | SET_BOUNDS)) != 0) {
326 newBounds.width = cb.width;
327 newBounds.height = cb.height;
328 }
329 // Native system could constraint bounds, so the peer wold be updated in the callback
330 platformWindow.setBounds(newBounds.x, newBounds.y, newBounds.width, newBounds.height);
331 }
332
333 public Rectangle constrainBounds(Rectangle bounds) {
334 return constrainBounds(bounds.x, bounds.y, bounds.width, bounds.height);
335 }
336
337 public Rectangle constrainBounds(int x, int y, int w, int h) {
338
339 if (w < MINIMUM_WIDTH) {
340 w = MINIMUM_WIDTH;
341 }
342
343 if (h < MINIMUM_HEIGHT) {
344 h = MINIMUM_HEIGHT;
345 }
346
347 final int maxW = getLWGC().getMaxTextureWidth();
348 final int maxH = getLWGC().getMaxTextureHeight();
349
350 if (w > maxW) {
351 w = maxW;
352 }
353 if (h > maxH) {
354 h = maxH;
355 }
356
357 return new Rectangle(x, y, w, h);
358 }
359
360 @Override
361 public Point getLocationOnScreen() {
362 return platformWindow.getLocationOnScreen();
363 }
364
365 /**
366 * Overridden from LWContainerPeer to return the correct insets.
367 * Insets are queried from the delegate and are kept up to date by
368 * requiering when needed (i.e. when the window geometry is changed).
369 */
370 @Override
371 public Insets getInsets() {
372 synchronized (getStateLock()) {
373 return insets;
374 }
375 }
376
377 @Override
378 public FontMetrics getFontMetrics(Font f) {
379 // TODO: check for "use platform metrics" settings
380 return platformWindow.getFontMetrics(f);
381 }
382
383 @Override
384 public void toFront() {
385 platformWindow.toFront();
386 }
387
388 @Override
389 public void toBack() {
390 platformWindow.toBack();
391 }
392
393 @Override
394 public void setZOrder(ComponentPeer above) {
395 throw new RuntimeException("not implemented");
396 }
397
398 @Override
399 public void updateAlwaysOnTopState() {
400 platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
401 }
402
403 @Override
404 public void updateFocusableWindowState() {
405 targetFocusable = getTarget().isFocusableWindow();
406 platformWindow.updateFocusableWindowState();
407 }
408
409 @Override
410 public void setModalBlocked(Dialog blocker, boolean blocked) {
411 synchronized (getPeerTreeLock()) {
412 ComponentPeer peer = AWTAccessor.getComponentAccessor().getPeer(blocker);
413 if (blocked && (peer instanceof LWWindowPeer)) {
414 this.blocker = (LWWindowPeer) peer;
415 } else {
416 this.blocker = null;
417 }
418 }
419
420 platformWindow.setModalBlocked(blocked);
421 }
422
423 @Override
424 public void updateMinimumSize() {
425 final Dimension min;
426 if (getTarget().isMinimumSizeSet()) {
427 min = getTarget().getMinimumSize();
428 min.width = Math.max(min.width, MINIMUM_WIDTH);
429 min.height = Math.max(min.height, MINIMUM_HEIGHT);
430 } else {
431 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
432 }
433
434 final Dimension max;
435 if (getTarget().isMaximumSizeSet()) {
436 max = getTarget().getMaximumSize();
437 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
438 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
439 } else {
440 max = new Dimension(getLWGC().getMaxTextureWidth(),
441 getLWGC().getMaxTextureHeight());
442 }
443
444 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
445 }
446
447 @Override
448 public void updateIconImages() {
449 getPlatformWindow().updateIconImages();
450 }
451
452 @Override
453 public void setBackground(final Color c) {
454 super.setBackground(c);
455 updateOpaque();
456 }
457
458 @Override
459 public void setOpacity(float opacity) {
460 getPlatformWindow().setOpacity(opacity);
461 repaintPeer();
462 }
463
464 @Override
465 public final void setOpaque(final boolean isOpaque) {
466 if (this.isOpaque != isOpaque) {
467 this.isOpaque = isOpaque;
468 updateOpaque();
469 }
470 }
471
472 private void updateOpaque() {
473 getPlatformWindow().setOpaque(!isTranslucent());
474 replaceSurfaceData(false);
475 repaintPeer();
476 }
477
478 @Override
479 public void updateWindow() {
480 }
481
482 public final boolean isTextured() {
483 return textured;
484 }
485
486 public final void setTextured(final boolean isTextured) {
487 textured = isTextured;
488 }
489
490 @Override
491 public final boolean isTranslucent() {
492 synchronized (getStateLock()) {
493 /*
494 * Textured window is a special case of translucent window.
495 * The difference is only in nswindow background. So when we set
496 * texture property our peer became fully translucent. It doesn't
497 * fill background, create non opaque backbuffers and layer etc.
498 */
499 return !isOpaque || isShaped() || isTextured();
500 }
501 }
502
503 @Override
504 final void applyShapeImpl(final Region shape) {
505 super.applyShapeImpl(shape);
506 updateOpaque();
507 }
508
509 @Override
510 public void repositionSecurityWarning() {
511 if (warningWindow != null) {
512 ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
513 Window target = getTarget();
514 int x = compAccessor.getX(target);
515 int y = compAccessor.getY(target);
516 int width = compAccessor.getWidth(target);
517 int height = compAccessor.getHeight(target);
518 warningWindow.reposition(x, y, width, height);
519 }
520 }
521
522 // ---- FRAME PEER METHODS ---- //
523
524 @Override // FramePeer and DialogPeer
525 public void setTitle(String title) {
526 platformWindow.setTitle(title == null ? "" : title);
527 }
528
529 @Override
530 public void setMenuBar(MenuBar mb) {
531 platformWindow.setMenuBar(mb);
532 }
533
534 @Override // FramePeer and DialogPeer
535 public void setResizable(boolean resizable) {
536 platformWindow.setResizable(resizable);
537 }
538
539 @Override
540 public void setState(int state) {
541 platformWindow.setWindowState(state);
542 }
543
544 @Override
545 public int getState() {
546 return windowState;
547 }
548
549 private boolean isMaximizedBoundsSet() {
550 synchronized (getStateLock()) {
551 return maximizedBounds != null;
552 }
553 }
554
555 private Rectangle getDefaultMaximizedBounds() {
556 GraphicsConfiguration config = getGraphicsConfiguration();
557 Insets screenInsets = ((CGraphicsDevice) config.getDevice())
558 .getScreenInsets();
559 Rectangle gcBounds = config.getBounds();
560 return new Rectangle(
561 gcBounds.x + screenInsets.left,
562 gcBounds.y + screenInsets.top,
563 gcBounds.width - screenInsets.left - screenInsets.right,
564 gcBounds.height - screenInsets.top - screenInsets.bottom);
565 }
566
567 @Override
568 public void setMaximizedBounds(Rectangle bounds) {
569 boolean isMaximizedBoundsSet;
570 synchronized (getStateLock()) {
571 this.maximizedBounds = (isMaximizedBoundsSet = (bounds != null))
572 ? constrainBounds(bounds) : null;
573 }
574
575 setPlatformMaximizedBounds(isMaximizedBoundsSet ? maximizedBounds
576 : getDefaultMaximizedBounds());
577 }
578
579 private void setPlatformMaximizedBounds(Rectangle bounds) {
580 platformWindow.setMaximizedBounds(
581 bounds.x, bounds.y,
582 bounds.width, bounds.height);
583 }
584
585 @Override
586 public void setBoundsPrivate(int x, int y, int width, int height) {
587 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
588 }
589
590 @Override
591 public Rectangle getBoundsPrivate() {
592 throw new RuntimeException("not implemented");
593 }
594
595 // ---- DIALOG PEER METHODS ---- //
596
597 @Override
598 public void blockWindows(List<Window> windows) {
599 //TODO: LWX will probably need some collectJavaToplevels to speed this up
600 for (Window w : windows) {
601 WindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(w);
602 if (wp != null) {
603 wp.setModalBlocked((Dialog)getTarget(), true);
604 }
605 }
606 }
607
608 // ---- PEER NOTIFICATIONS ---- //
609
610 @Override
611 public void notifyIconify(boolean iconify) {
612 //The toplevel target is Frame and states are applicable to it.
613 //Otherwise, the target is Window and it don't have state property.
614 //Hopefully, no such events are posted in the queue so consider the
615 //target as Frame in all cases.
616
617 // REMIND: should we send it anyway if the state not changed since last
618 // time?
619 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
620 iconify ? WindowEvent.WINDOW_ICONIFIED
621 : WindowEvent.WINDOW_DEICONIFIED);
622 postEvent(iconifyEvent);
623
624 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
625 postWindowStateChangedEvent(newWindowState);
626
627 // REMIND: RepaintManager doesn't repaint iconified windows and
628 // hence ignores any repaint request during deiconification.
629 // So, we need to repaint window explicitly when it becomes normal.
630 if (!iconify) {
631 repaintPeer();
632 }
633 }
634
635 @Override
636 public void notifyZoom(boolean isZoomed) {
637 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
638 postWindowStateChangedEvent(newWindowState);
639 }
640
641 /**
642 * Called by the {@code PlatformWindow} when any part of the window should
643 * be repainted.
644 */
645 @Override
646 public void notifyExpose(final Rectangle r) {
647 repaintPeer(r);
648 }
649
650 /**
651 * Called by the {@code PlatformWindow} when this window is moved/resized by
652 * user or window insets are changed. There's no notifyReshape() in
653 * LWComponentPeer as the only components which could be resized by user are
654 * top-level windows.
655 */
656 @Override
657 public void notifyReshape(int x, int y, int w, int h) {
658 Rectangle oldBounds = getBounds();
659 final boolean invalid = updateInsets(platformWindow.getInsets());
660 final boolean moved = (x != oldBounds.x) || (y != oldBounds.y);
661 final boolean resized = (w != oldBounds.width) || (h != oldBounds.height);
662
663 // Check if anything changed
664 if (!moved && !resized && !invalid) {
665 return;
666 }
667 // First, update peer's bounds
668 setBounds(x, y, w, h, SET_BOUNDS, false, false);
669
670 // Second, update the graphics config and surface data
671 final boolean isNewDevice = updateGraphicsDevice();
672 if (isNewDevice && !isMaximizedBoundsSet()) {
673 setPlatformMaximizedBounds(getDefaultMaximizedBounds());
674 }
675
676 if (resized || isNewDevice) {
677 replaceSurfaceData();
678 updateMinimumSize();
679 }
680
681 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
682 if (moved || invalid) {
683 handleMove(x, y, true);
684 }
685 if (resized || invalid || isNewDevice) {
686 handleResize(w, h, true);
687 repaintPeer();
688 }
689
690 repositionSecurityWarning();
691 }
692
693 private void clearBackground(final int w, final int h) {
694 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
695 getFont());
696 if (g != null) {
697 try {
698 if (g instanceof Graphics2D) {
699 ((Graphics2D) g).setComposite(AlphaComposite.Src);
700 }
701 if (isTranslucent()) {
702 g.setColor(nonOpaqueBackground);
703 g.fillRect(0, 0, w, h);
704 }
705 if (!isTextured()) {
706 if (g instanceof SunGraphics2D) {
707 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
708 }
709 g.setColor(getBackground());
710 g.fillRect(0, 0, w, h);
711 }
712 } finally {
713 g.dispose();
714 }
715 }
716 }
717
718 @Override
719 public void notifyUpdateCursor() {
720 getLWToolkit().getCursorManager().updateCursorLater(this);
721 }
722
723 @Override
724 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
725 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
726 changeFocusedWindow(activation, oppositeWindow);
727 }
728
729 // MouseDown in non-client area
730 @Override
731 public void notifyNCMouseDown() {
732 // Ungrab except for a click on a Dialog with the grabbing owner
733 if (grabbingWindow != null &&
734 !grabbingWindow.isOneOfOwnersOf(this))
735 {
736 grabbingWindow.ungrab();
737 }
738 }
739
740 // ---- EVENTS ---- //
741
742 /*
743 * Called by the delegate to dispatch the event to Java. Event
744 * coordinates are relative to non-client window are, i.e. the top-left
745 * point of the client area is (insets.top, insets.left).
746 */
747 @Override
748 public void notifyMouseEvent(int id, long when, int button,
749 int x, int y, int screenX, int screenY,
750 int modifiers, int clickCount, boolean popupTrigger,
751 byte[] bdata)
752 {
753 // TODO: fill "bdata" member of AWTEvent
754 Rectangle r = getBounds();
755 // findPeerAt() expects parent coordinates
756 LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
757
758 if (id == MouseEvent.MOUSE_EXITED) {
759 isMouseOver = false;
760 if (lastMouseEventPeer != null) {
761 if (lastMouseEventPeer.isEnabled()) {
762 Point lp = lastMouseEventPeer.windowToLocal(x, y,
763 this);
764 Component target = lastMouseEventPeer.getTarget();
765 postMouseExitedEvent(target, when, modifiers, lp,
766 screenX, screenY, clickCount, popupTrigger, button);
767 }
768
769 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
770 // to a peer from another window. So we must first check if this peer is
771 // the same as lastWindowPeer
772 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
773 lastCommonMouseEventPeer = null;
774 }
775 lastMouseEventPeer = null;
776 }
777 } else if(id == MouseEvent.MOUSE_ENTERED) {
778 isMouseOver = true;
779 if (targetPeer != null) {
780 if (targetPeer.isEnabled()) {
781 Point lp = targetPeer.windowToLocal(x, y, this);
782 Component target = targetPeer.getTarget();
783 postMouseEnteredEvent(target, when, modifiers, lp,
784 screenX, screenY, clickCount, popupTrigger, button);
785 }
786 lastCommonMouseEventPeer = targetPeer;
787 lastMouseEventPeer = targetPeer;
788 }
789 } else {
790 PlatformWindow topmostPlatformWindow = LWToolkit.getLWToolkit().getPlatformWindowUnderMouse();
791
792 LWWindowPeer topmostWindowPeer =
793 topmostPlatformWindow != null ? topmostPlatformWindow.getPeer() : null;
794
795 // topmostWindowPeer == null condition is added for the backward
796 // compatibility with applets. It can be removed when the
797 // getTopmostPlatformWindowUnderMouse() method will be properly
798 // implemented in CPlatformEmbeddedFrame class
799 if (topmostWindowPeer == this || topmostWindowPeer == null) {
800 generateMouseEnterExitEventsForComponents(when, button, x, y,
801 screenX, screenY, modifiers, clickCount, popupTrigger,
802 targetPeer);
803 } else {
804 LWComponentPeer<?, ?> topmostTargetPeer = topmostWindowPeer.findPeerAt(r.x + x, r.y + y);
805 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
806 screenX, screenY, modifiers, clickCount, popupTrigger,
807 topmostTargetPeer);
808 }
809
810 // TODO: fill "bdata" member of AWTEvent
811
812 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
813 int otherButtonsPressed = modifiers & ~eventButtonMask;
814
815 // For pressed/dragged/released events OS X treats other
816 // mouse buttons as if they were BUTTON2, so we do the same
817 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
818
819 // MOUSE_ENTERED/EXITED are generated for the components strictly under
820 // mouse even when dragging. That's why we first update lastMouseEventPeer
821 // based on initial targetPeer value and only then recalculate targetPeer
822 // for MOUSE_DRAGGED/RELEASED events
823 if (id == MouseEvent.MOUSE_PRESSED) {
824
825 // Ungrab only if this window is not an owned window of the grabbing one.
826 if (!isGrabbing() && grabbingWindow != null &&
827 !grabbingWindow.isOneOfOwnersOf(this))
828 {
829 grabbingWindow.ungrab();
830 }
831 if (otherButtonsPressed == 0) {
832 mouseClickButtons = eventButtonMask;
833 } else {
834 mouseClickButtons |= eventButtonMask;
835 }
836
837 // The window should be focused on mouse click. If it gets activated by the native platform,
838 // this request will be no op. It will take effect when:
839 // 1. A simple not focused window is clicked.
840 // 2. An active but not focused owner frame/dialog is clicked.
841 // The mouse event then will trigger a focus request "in window" to the component, so the window
842 // should gain focus before.
843 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
844
845 mouseDownTarget[targetIdx] = targetPeer;
846 } else if (id == MouseEvent.MOUSE_DRAGGED) {
847 // Cocoa dragged event has the information about which mouse
848 // button is being dragged. Use it to determine the peer that
849 // should receive the dragged event.
850 targetPeer = mouseDownTarget[targetIdx];
851 mouseClickButtons &= ~modifiers;
852 } else if (id == MouseEvent.MOUSE_RELEASED) {
853 // TODO: currently, mouse released event goes to the same component
854 // that received corresponding mouse pressed event. For most cases,
855 // it's OK, however, we need to make sure that our behavior is consistent
856 // with 1.6 for cases where component in question have been
857 // hidden/removed in between of mouse pressed/released events.
858 targetPeer = mouseDownTarget[targetIdx];
859
860 if ((modifiers & eventButtonMask) == 0) {
861 mouseDownTarget[targetIdx] = null;
862 }
863
864 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
865 }
866
867 if (targetPeer == null) {
868 //TODO This can happen if this window is invisible. this is correct behavior in this case?
869 targetPeer = this;
870 }
871
872
873 Point lp = targetPeer.windowToLocal(x, y, this);
874 if (targetPeer.isEnabled()) {
875 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
876 when, modifiers, lp.x, lp.y,
877 screenX, screenY, clickCount,
878 popupTrigger, button);
879 postEvent(event);
880 }
881
882 if (id == MouseEvent.MOUSE_RELEASED) {
883 if ((mouseClickButtons & eventButtonMask) != 0
884 && targetPeer.isEnabled()) {
885 postEvent(new MouseEvent(targetPeer.getTarget(),
886 MouseEvent.MOUSE_CLICKED,
887 when, modifiers,
888 lp.x, lp.y, screenX, screenY,
889 clickCount, popupTrigger, button));
890 }
891 mouseClickButtons &= ~eventButtonMask;
892 }
893 }
894 notifyUpdateCursor();
895 }
896
897 private void generateMouseEnterExitEventsForComponents(long when,
898 int button, int x, int y, int screenX, int screenY,
899 int modifiers, int clickCount, boolean popupTrigger,
900 final LWComponentPeer<?, ?> targetPeer) {
901
902 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
903 return;
904 }
905
906 // Generate Mouse Exit for components
907 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
908 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
909 Component target = lastMouseEventPeer.getTarget();
910 postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
911 clickCount, popupTrigger, button);
912 }
913 lastCommonMouseEventPeer = targetPeer;
914 lastMouseEventPeer = targetPeer;
915
916 // Generate Mouse Enter for components
917 if (targetPeer != null && targetPeer.isEnabled()) {
918 Point newp = targetPeer.windowToLocal(x, y, this);
919 Component target = targetPeer.getTarget();
920 postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
921 }
922 }
923
924 private void postMouseEnteredEvent(Component target, long when, int modifiers,
925 Point loc, int xAbs, int yAbs,
926 int clickCount, boolean popupTrigger, int button) {
927
928 updateSecurityWarningVisibility();
929
930 postEvent(new MouseEvent(target,
931 MouseEvent.MOUSE_ENTERED,
932 when, modifiers,
933 loc.x, loc.y, xAbs, yAbs,
934 clickCount, popupTrigger, button));
935 }
936
937 private void postMouseExitedEvent(Component target, long when, int modifiers,
938 Point loc, int xAbs, int yAbs,
939 int clickCount, boolean popupTrigger, int button) {
940
941 updateSecurityWarningVisibility();
942
943 postEvent(new MouseEvent(target,
944 MouseEvent.MOUSE_EXITED,
945 when, modifiers,
946 loc.x, loc.y, xAbs, yAbs,
947 clickCount, popupTrigger, button));
948 }
949
950 @Override
951 public void notifyMouseWheelEvent(long when, int x, int y, int modifiers,
952 int scrollType, int scrollAmount,
953 int wheelRotation, double preciseWheelRotation,
954 byte[] bdata)
955 {
956 // TODO: could we just use the last mouse event target here?
957 Rectangle r = getBounds();
958 // findPeerAt() expects parent coordinates
959 final LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
960 if (targetPeer == null || !targetPeer.isEnabled()) {
961 return;
962 }
963
964 Point lp = targetPeer.windowToLocal(x, y, this);
965 // TODO: fill "bdata" member of AWTEvent
966 // TODO: screenX/screenY
967 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
968 MouseEvent.MOUSE_WHEEL,
969 when, modifiers,
970 lp.x, lp.y,
971 0, 0, /* screenX, Y */
972 0 /* clickCount */, false /* popupTrigger */,
973 scrollType, scrollAmount,
974 wheelRotation, preciseWheelRotation));
975 }
976
977 /*
978 * Called by the delegate when a key is pressed.
979 */
980 @Override
981 public void notifyKeyEvent(int id, long when, int modifiers,
982 int keyCode, char keyChar, int keyLocation)
983 {
984 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
985 Component focusOwner = kfmPeer.getCurrentFocusOwner();
986
987 if (focusOwner == null) {
988 focusOwner = kfmPeer.getCurrentFocusedWindow();
989 if (focusOwner == null) {
990 focusOwner = this.getTarget();
991 }
992 }
993
994 KeyEvent keyEvent = new KeyEvent(focusOwner, id, when, modifiers,
995 keyCode, keyChar, keyLocation);
996 AWTAccessor.getKeyEventAccessor().setExtendedKeyCode(keyEvent,
997 (keyChar == KeyEvent.CHAR_UNDEFINED) ? keyCode
998 : ExtendedKeyCodes.getExtendedKeyCodeForChar(keyChar));
999 postEvent(keyEvent);
1000 }
1001
1002 // ---- UTILITY METHODS ---- //
1003
1004 private void activateDisplayListener() {
1005 final GraphicsEnvironment ge =
1006 GraphicsEnvironment.getLocalGraphicsEnvironment();
1007 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
1008 }
1009
1010 private void deactivateDisplayListener() {
1011 final GraphicsEnvironment ge =
1012 GraphicsEnvironment.getLocalGraphicsEnvironment();
1013 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
1014 }
1015
1016 private void postWindowStateChangedEvent(int newWindowState) {
1017 if (getTarget() instanceof Frame) {
1018 AWTAccessor.getFrameAccessor().setExtendedState(
1019 (Frame)getTarget(), newWindowState);
1020 }
1021
1022 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
1023 WindowEvent.WINDOW_STATE_CHANGED,
1024 windowState, newWindowState);
1025 postEvent(stateChangedEvent);
1026 windowState = newWindowState;
1027
1028 updateSecurityWarningVisibility();
1029 }
1030
1031 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
1032 // TODO: this method can be implemented in a more
1033 // efficient way by forwarding to the delegate
1034 GraphicsDevice gd = gc.getDevice();
1035 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
1036 GraphicsDevice[] gds = ge.getScreenDevices();
1037 for (int i = 0; i < gds.length; i++) {
1038 if (gds[i] == gd) {
1039 return i;
1040 }
1041 }
1042 // Should never happen if gc is a screen device config
1043 return 0;
1044 }
1045
1046 /*
1047 * This method is called when window's graphics config is changed from
1048 * the app code (e.g. when the window is made non-opaque) or when
1049 * the window is moved to another screen by user.
1050 *
1051 * Returns true if the graphics config has been changed, false otherwise.
1052 */
1053 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
1054 synchronized (getStateLock()) {
1055 if (graphicsConfig == gc) {
1056 return false;
1057 }
1058 // If window's graphics config is changed from the app code, the
1059 // config correspond to the same device as before; when the window
1060 // is moved by user, graphicsDevice is updated in notifyReshape().
1061 // In either case, there's nothing to do with screenOn here
1062 graphicsConfig = gc;
1063 }
1064 // SurfaceData is replaced later in updateGraphicsData()
1065 return true;
1066 }
1067
1068 /**
1069 * Returns true if the GraphicsDevice has been changed, false otherwise.
1070 */
1071 public boolean updateGraphicsDevice() {
1072 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
1073 synchronized (getStateLock()) {
1074 if (graphicsDevice == newGraphicsDevice) {
1075 return false;
1076 }
1077 graphicsDevice = newGraphicsDevice;
1078 }
1079
1080 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
1081
1082 if (!setGraphicsConfig(newGC)) return false;
1083
1084 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
1085 public void run() {
1086 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1087 }
1088 });
1089 return true;
1090 }
1091
1092 @Override
1093 public final void displayChanged() {
1094 if (updateGraphicsDevice()) {
1095 updateMinimumSize();
1096 if (!isMaximizedBoundsSet()) {
1097 setPlatformMaximizedBounds(getDefaultMaximizedBounds());
1098 }
1099 }
1100 // Replace surface unconditionally, because internal state of the
1101 // GraphicsDevice could be changed.
1102 replaceSurfaceData();
1103 repaintPeer();
1104 }
1105
1106 @Override
1107 public final void paletteChanged() {
1108 // components do not need to react to this event.
1109 }
1110
1111 /*
1112 * May be called by delegate to provide SD to Java2D code.
1113 */
1114 public SurfaceData getSurfaceData() {
1115 synchronized (surfaceDataLock) {
1116 return surfaceData;
1117 }
1118 }
1119
1120 private void replaceSurfaceData() {
1121 replaceSurfaceData(true);
1122 }
1123
1124 private void replaceSurfaceData(final boolean blit) {
1125 synchronized (surfaceDataLock) {
1126 final SurfaceData oldData = getSurfaceData();
1127 surfaceData = platformWindow.replaceSurfaceData();
1128 final Rectangle size = getSize();
1129 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1130 clearBackground(size.width, size.height);
1131 }
1132
1133 if (blit) {
1134 blitSurfaceData(oldData, getSurfaceData());
1135 }
1136
1137 if (oldData != null && oldData != getSurfaceData()) {
1138 // TODO: drop oldData for D3D/WGL pipelines
1139 // This can only happen when this peer is being created
1140 oldData.flush();
1141 }
1142 }
1143 flushOnscreenGraphics();
1144 }
1145
1146 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1147 //TODO blit. proof-of-concept
1148 if (src != dst && src != null && dst != null
1149 && !(dst instanceof NullSurfaceData)
1150 && !(src instanceof NullSurfaceData)
1151 && src.getSurfaceType().equals(dst.getSurfaceType())
1152 && src.getDefaultScale() == dst.getDefaultScale()) {
1153 final Rectangle size = src.getBounds();
1154 final Blit blit = Blit.locate(src.getSurfaceType(),
1155 CompositeType.Src,
1156 dst.getSurfaceType());
1157 if (blit != null) {
1158 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1159 size.width, size.height);
1160 }
1161 }
1162 }
1163
1164 /**
1165 * Request the window insets from the delegate and compares it with the
1166 * current one. This method is mostly called by the delegate, e.g. when the
1167 * window state is changed and insets should be recalculated.
1168 * <p/>
1169 * This method may be called on the toolkit thread.
1170 */
1171 public final boolean updateInsets(final Insets newInsets) {
1172 synchronized (getStateLock()) {
1173 if (insets.equals(newInsets)) {
1174 return false;
1175 }
1176 insets = newInsets;
1177 }
1178 return true;
1179 }
1180
1181 public static LWWindowPeer getWindowUnderCursor() {
1182 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1183 }
1184
1185 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1186 return lastCommonMouseEventPeer;
1187 }
1188
1189 /*
1190 * Requests platform to set native focus on a frame/dialog.
1191 * In case of a simple window, triggers appropriate java focus change.
1192 */
1193 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1194 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1195 focusLog.fine("requesting native focus to " + this);
1196 }
1197
1198 if (!focusAllowedFor()) {
1199 focusLog.fine("focus is not allowed");
1200 return false;
1201 }
1202
1203 if (platformWindow.rejectFocusRequest(cause)) {
1204 return false;
1205 }
1206
1207 AppContext targetAppContext = AWTAccessor.getComponentAccessor().getAppContext(getTarget());
1208 KeyboardFocusManager kfm = AWTAccessor.getKeyboardFocusManagerAccessor()
1209 .getCurrentKeyboardFocusManager(targetAppContext);
1210 Window currentActive = kfm.getActiveWindow();
1211
1212
1213 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1214 getCurrentFocusedWindow();
1215
1216 // Make the owner active window.
1217 if (isSimpleWindow()) {
1218 LWWindowPeer owner = getOwnerFrameDialog(this);
1219
1220 // If owner is not natively active, request native
1221 // activation on it w/o sending events up to java.
1222 if (owner != null && !owner.platformWindow.isActive()) {
1223 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1224 focusLog.fine("requesting native focus to the owner " + owner);
1225 }
1226 LWWindowPeer currentActivePeer = currentActive == null ? null :
1227 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(
1228 currentActive);
1229
1230 // Ensure the opposite is natively active and suppress sending events.
1231 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1232 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1233 focusLog.fine("the opposite is " + currentActivePeer);
1234 }
1235 currentActivePeer.skipNextFocusChange = true;
1236 }
1237 owner.skipNextFocusChange = true;
1238
1239 owner.platformWindow.requestWindowFocus();
1240 }
1241
1242 // DKFM will synthesize all the focus/activation events correctly.
1243 changeFocusedWindow(true, opposite);
1244 return true;
1245
1246 // In case the toplevel is active but not focused, change focus directly,
1247 // as requesting native focus on it will not have effect.
1248 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1249
1250 changeFocusedWindow(true, opposite);
1251 return true;
1252 }
1253
1254 return platformWindow.requestWindowFocus();
1255 }
1256
1257 protected boolean focusAllowedFor() {
1258 Window window = getTarget();
1259 // TODO: check if modal blocked
1260 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1261 }
1262
1263 private boolean isFocusableWindow() {
1264 boolean focusable = targetFocusable;
1265 if (isSimpleWindow()) {
1266 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1267 if (ownerPeer == null) {
1268 return false;
1269 }
1270 return focusable && ownerPeer.targetFocusable;
1271 }
1272 return focusable;
1273 }
1274
1275 public boolean isSimpleWindow() {
1276 Window window = getTarget();
1277 return !(window instanceof Dialog || window instanceof Frame);
1278 }
1279
1280 @Override
1281 public void emulateActivation(boolean activate) {
1282 changeFocusedWindow(activate, null);
1283 }
1284
1285 @SuppressWarnings("deprecation")
1286 private boolean isOneOfOwnersOf(LWWindowPeer peer) {
1287 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1288 while (owner != null) {
1289 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
1290 if (acc.getPeer(owner) == this) {
1291 return true;
1292 }
1293 owner = owner.getOwner();
1294 }
1295 return false;
1296 }
1297
1298 /*
1299 * Changes focused window on java level.
1300 */
1301 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1302 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1303 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1304 }
1305 if (skipNextFocusChange) {
1306 focusLog.fine("skipping focus change");
1307 skipNextFocusChange = false;
1308 return;
1309 }
1310 if (!isFocusableWindow() && becomesFocused) {
1311 focusLog.fine("the window is not focusable");
1312 return;
1313 }
1314 if (becomesFocused) {
1315 synchronized (getPeerTreeLock()) {
1316 if (blocker != null) {
1317 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1318 focusLog.finest("the window is blocked by " + blocker);
1319 }
1320 return;
1321 }
1322 }
1323 }
1324
1325 // Note, the method is not called:
1326 // - when the opposite (gaining focus) window is an owned/owner window.
1327 // - for a simple window in any case.
1328 if (!becomesFocused &&
1329 (isGrabbing() || this.isOneOfOwnersOf(grabbingWindow)))
1330 {
1331 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1332 focusLog.fine("ungrabbing on " + grabbingWindow);
1333 }
1334 // ungrab a simple window if its owner looses activation.
1335 grabbingWindow.ungrab();
1336 }
1337
1338 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1339
1340 if (!becomesFocused && kfmPeer.getCurrentFocusedWindow() != getTarget()) {
1341 // late window focus lost event - ingoring
1342 return;
1343 }
1344
1345 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1346
1347 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1348 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1349
1350 // TODO: wrap in SequencedEvent
1351 postEvent(windowEvent);
1352 }
1353
1354 /*
1355 * Retrieves the owner of the peer.
1356 * Note: this method returns the owner which can be activated, (i.e. the instance
1357 * of Frame or Dialog may be returned).
1358 */
1359 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1360 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1361 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1362 owner = owner.getOwner();
1363 }
1364 return owner == null ? null : AWTAccessor.getComponentAccessor()
1365 .getPeer(owner);
1366 }
1367
1368 /**
1369 * Returns the foremost modal blocker of this window, or null.
1370 */
1371 public LWWindowPeer getBlocker() {
1372 synchronized (getPeerTreeLock()) {
1373 LWWindowPeer blocker = this.blocker;
1374 if (blocker == null) {
1375 return null;
1376 }
1377 while (blocker.blocker != null) {
1378 blocker = blocker.blocker;
1379 }
1380 return blocker;
1381 }
1382 }
1383
1384 @Override
1385 public void enterFullScreenMode() {
1386 platformWindow.enterFullScreenMode();
1387 updateSecurityWarningVisibility();
1388 }
1389
1390 @Override
1391 public void exitFullScreenMode() {
1392 platformWindow.exitFullScreenMode();
1393 updateSecurityWarningVisibility();
1394 }
1395
1396 public long getLayerPtr() {
1397 return getPlatformWindow().getLayerPtr();
1398 }
1399
1400 void grab() {
1401 if (grabbingWindow != null && !isGrabbing()) {
1402 grabbingWindow.ungrab();
1403 }
1404 grabbingWindow = this;
1405 }
1406
1407 final void ungrab(boolean doPost) {
1408 if (isGrabbing()) {
1409 grabbingWindow = null;
1410 if (doPost) {
1411 postEvent(new UngrabEvent(getTarget()));
1412 }
1413 }
1414 }
1415
1416 void ungrab() {
1417 ungrab(true);
1418 }
1419
1420 private boolean isGrabbing() {
1421 return this == grabbingWindow;
1422 }
1423
1424 public PeerType getPeerType() {
1425 return peerType;
1426 }
1427
1428 public void updateSecurityWarningVisibility() {
1429 if (warningWindow == null) {
1430 return;
1431 }
1432
1433 if (!isVisible()) {
1434 return; // The warning window should already be hidden.
1435 }
1436
1437 boolean show = false;
1438
1439 if (!platformWindow.isFullScreenMode()) {
1440 if (isVisible()) {
1441 if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
1442 getTarget()) {
1443 show = true;
1444 }
1445
1446 if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
1447 show = true;
1448 }
1449 }
1450 }
1451
1452 warningWindow.setVisible(show, true);
1453 }
1454
1455 @Override
1456 public String toString() {
1457 return super.toString() + " [target is " + getTarget() + "]";
1458 }
1459 }