1 /*
2 * Copyright (c) 2011, 2016, 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(FocusEvent.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(FocusEvent.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 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 public Rectangle getMaximizedBounds() {
580 synchronized (getStateLock()) {
581 return (maximizedBounds == null)
582 ? getDefaultMaximizedBounds()
583 : maximizedBounds;
584 }
585 }
586
587 private void setPlatformMaximizedBounds(Rectangle bounds) {
588 platformWindow.setMaximizedBounds(
589 bounds.x, bounds.y,
590 bounds.width, bounds.height);
591 }
592
593 @Override
594 public void setBoundsPrivate(int x, int y, int width, int height) {
595 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
596 }
597
598 @Override
599 public Rectangle getBoundsPrivate() {
600 throw new RuntimeException("not implemented");
601 }
602
603 // ---- DIALOG PEER METHODS ---- //
604
605 @Override
606 public void blockWindows(List<Window> windows) {
607 //TODO: LWX will probably need some collectJavaToplevels to speed this up
608 for (Window w : windows) {
609 WindowPeer wp = AWTAccessor.getComponentAccessor().getPeer(w);
610 if (wp != null) {
611 wp.setModalBlocked((Dialog)getTarget(), true);
612 }
613 }
614 }
615
616 // ---- PEER NOTIFICATIONS ---- //
617
618 @Override
619 public void notifyIconify(boolean iconify) {
620 //The toplevel target is Frame and states are applicable to it.
621 //Otherwise, the target is Window and it don't have state property.
622 //Hopefully, no such events are posted in the queue so consider the
623 //target as Frame in all cases.
624
625 // REMIND: should we send it anyway if the state not changed since last
626 // time?
627 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
628 iconify ? WindowEvent.WINDOW_ICONIFIED
629 : WindowEvent.WINDOW_DEICONIFIED);
630 postEvent(iconifyEvent);
631
632 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
633 postWindowStateChangedEvent(newWindowState);
634
635 // REMIND: RepaintManager doesn't repaint iconified windows and
636 // hence ignores any repaint request during deiconification.
637 // So, we need to repaint window explicitly when it becomes normal.
638 if (!iconify) {
639 repaintPeer();
640 }
641 }
642
643 @Override
644 public void notifyZoom(boolean isZoomed) {
645 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
646 postWindowStateChangedEvent(newWindowState);
647 }
648
649 /**
650 * Called by the {@code PlatformWindow} when any part of the window should
651 * be repainted.
652 */
653 @Override
654 public void notifyExpose(final Rectangle r) {
655 repaintPeer(r);
656 }
657
658 /**
659 * Called by the {@code PlatformWindow} when this window is moved/resized by
660 * user or window insets are changed. There's no notifyReshape() in
661 * LWComponentPeer as the only components which could be resized by user are
662 * top-level windows.
663 */
664 @Override
665 public void notifyReshape(int x, int y, int w, int h) {
666 Rectangle oldBounds = getBounds();
667 final boolean invalid = updateInsets(platformWindow.getInsets());
668 final boolean moved = (x != oldBounds.x) || (y != oldBounds.y);
669 final boolean resized = (w != oldBounds.width) || (h != oldBounds.height);
670
671 // Check if anything changed
672 if (!moved && !resized && !invalid) {
673 return;
674 }
675 // First, update peer's bounds
676 setBounds(x, y, w, h, SET_BOUNDS, false, false);
677
678 // Second, update the graphics config and surface data
679 final boolean isNewDevice = updateGraphicsDevice();
680 if (isNewDevice && !isMaximizedBoundsSet()) {
681 setPlatformMaximizedBounds(getDefaultMaximizedBounds());
682 }
683
684 if (resized || isNewDevice) {
685 replaceSurfaceData();
686 updateMinimumSize();
687 }
688
689 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
690 if (moved || invalid) {
691 handleMove(x, y, true);
692 }
693 if (resized || invalid || isNewDevice) {
694 handleResize(w, h, true);
695 repaintPeer();
696 }
697
698 repositionSecurityWarning();
699 }
700
701 private void clearBackground(final int w, final int h) {
702 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
703 getFont());
704 if (g != null) {
705 try {
706 if (g instanceof Graphics2D) {
707 ((Graphics2D) g).setComposite(AlphaComposite.Src);
708 }
709 if (isTranslucent()) {
710 g.setColor(nonOpaqueBackground);
711 g.fillRect(0, 0, w, h);
712 }
713 if (!isTextured()) {
714 if (g instanceof SunGraphics2D) {
715 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
716 }
717 g.setColor(getBackground());
718 g.fillRect(0, 0, w, h);
719 }
720 } finally {
721 g.dispose();
722 }
723 }
724 }
725
726 @Override
727 public void notifyUpdateCursor() {
728 getLWToolkit().getCursorManager().updateCursorLater(this);
729 }
730
731 @Override
732 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
733 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
734 changeFocusedWindow(activation, oppositeWindow);
735 }
736
737 // MouseDown in non-client area
738 @Override
739 public void notifyNCMouseDown() {
740 // Ungrab except for a click on a Dialog with the grabbing owner
741 if (grabbingWindow != null &&
742 !grabbingWindow.isOneOfOwnersOf(this))
743 {
744 grabbingWindow.ungrab();
745 }
746 }
747
748 // ---- EVENTS ---- //
749
750 /*
751 * Called by the delegate to dispatch the event to Java. Event
752 * coordinates are relative to non-client window are, i.e. the top-left
753 * point of the client area is (insets.top, insets.left).
754 */
755 @Override
756 public void notifyMouseEvent(int id, long when, int button,
757 int x, int y, int absX, int absY,
758 int modifiers, int clickCount, boolean popupTrigger,
759 byte[] bdata)
760 {
761 // TODO: fill "bdata" member of AWTEvent
762 Rectangle r = getBounds();
763 // findPeerAt() expects parent coordinates
764 LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
765
766 if (id == MouseEvent.MOUSE_EXITED) {
767 isMouseOver = false;
768 if (lastMouseEventPeer != null) {
769 if (lastMouseEventPeer.isEnabled()) {
770 Point lp = lastMouseEventPeer.windowToLocal(x, y,
771 this);
772 Component target = lastMouseEventPeer.getTarget();
773 postMouseExitedEvent(target, when, modifiers, lp,
774 absX, absY, clickCount, popupTrigger, button);
775 }
776
777 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
778 // to a peer from another window. So we must first check if this peer is
779 // the same as lastWindowPeer
780 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
781 lastCommonMouseEventPeer = null;
782 }
783 lastMouseEventPeer = null;
784 }
785 } else if(id == MouseEvent.MOUSE_ENTERED) {
786 isMouseOver = true;
787 if (targetPeer != null) {
788 if (targetPeer.isEnabled()) {
789 Point lp = targetPeer.windowToLocal(x, y, this);
790 Component target = targetPeer.getTarget();
791 postMouseEnteredEvent(target, when, modifiers, lp,
792 absX, absY, clickCount, popupTrigger, button);
793 }
794 lastCommonMouseEventPeer = targetPeer;
795 lastMouseEventPeer = targetPeer;
796 }
797 } else {
798 PlatformWindow topmostPlatformWindow = LWToolkit.getLWToolkit().getPlatformWindowUnderMouse();
799
800 LWWindowPeer topmostWindowPeer =
801 topmostPlatformWindow != null ? topmostPlatformWindow.getPeer() : null;
802
803 // topmostWindowPeer == null condition is added for the backward
804 // compatibility with applets. It can be removed when the
805 // getTopmostPlatformWindowUnderMouse() method will be properly
806 // implemented in CPlatformEmbeddedFrame class
807 if (topmostWindowPeer == this || topmostWindowPeer == null) {
808 generateMouseEnterExitEventsForComponents(when, button, x, y,
809 absX, absY, modifiers, clickCount, popupTrigger,
810 targetPeer);
811 } else {
812 LWComponentPeer<?, ?> topmostTargetPeer = topmostWindowPeer.findPeerAt(r.x + x, r.y + y);
813 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
814 absX, absY, modifiers, clickCount, popupTrigger,
815 topmostTargetPeer);
816 }
817
818 // TODO: fill "bdata" member of AWTEvent
819
820 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
821 int otherButtonsPressed = modifiers & ~eventButtonMask;
822
823 // For pressed/dragged/released events OS X treats other
824 // mouse buttons as if they were BUTTON2, so we do the same
825 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
826
827 // MOUSE_ENTERED/EXITED are generated for the components strictly under
828 // mouse even when dragging. That's why we first update lastMouseEventPeer
829 // based on initial targetPeer value and only then recalculate targetPeer
830 // for MOUSE_DRAGGED/RELEASED events
831 if (id == MouseEvent.MOUSE_PRESSED) {
832
833 // Ungrab only if this window is not an owned window of the grabbing one.
834 if (!isGrabbing() && grabbingWindow != null &&
835 !grabbingWindow.isOneOfOwnersOf(this))
836 {
837 grabbingWindow.ungrab();
838 }
839 if (otherButtonsPressed == 0) {
840 mouseClickButtons = eventButtonMask;
841 } else {
842 mouseClickButtons |= eventButtonMask;
843 }
844
845 // The window should be focused on mouse click. If it gets activated by the native platform,
846 // this request will be no op. It will take effect when:
847 // 1. A simple not focused window is clicked.
848 // 2. An active but not focused owner frame/dialog is clicked.
849 // The mouse event then will trigger a focus request "in window" to the component, so the window
850 // should gain focus before.
851 requestWindowFocus(FocusEvent.Cause.MOUSE_EVENT);
852
853 mouseDownTarget[targetIdx] = targetPeer;
854 } else if (id == MouseEvent.MOUSE_DRAGGED) {
855 // Cocoa dragged event has the information about which mouse
856 // button is being dragged. Use it to determine the peer that
857 // should receive the dragged event.
858 targetPeer = mouseDownTarget[targetIdx];
859 mouseClickButtons &= ~modifiers;
860 } else if (id == MouseEvent.MOUSE_RELEASED) {
861 // TODO: currently, mouse released event goes to the same component
862 // that received corresponding mouse pressed event. For most cases,
863 // it's OK, however, we need to make sure that our behavior is consistent
864 // with 1.6 for cases where component in question have been
865 // hidden/removed in between of mouse pressed/released events.
866 targetPeer = mouseDownTarget[targetIdx];
867
868 if ((modifiers & eventButtonMask) == 0) {
869 mouseDownTarget[targetIdx] = null;
870 }
871
872 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
873 }
874
875 if (targetPeer == null) {
876 //TODO This can happen if this window is invisible. this is correct behavior in this case?
877 targetPeer = this;
878 }
879
880
881 Point lp = targetPeer.windowToLocal(x, y, this);
882 if (targetPeer.isEnabled()) {
883 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
884 when, modifiers, lp.x, lp.y,
885 absX, absY, clickCount,
886 popupTrigger, button);
887 postEvent(event);
888 }
889
890 if (id == MouseEvent.MOUSE_RELEASED) {
891 if ((mouseClickButtons & eventButtonMask) != 0
892 && targetPeer.isEnabled()) {
893 postEvent(new MouseEvent(targetPeer.getTarget(),
894 MouseEvent.MOUSE_CLICKED,
895 when, modifiers,
896 lp.x, lp.y, absX, absY,
897 clickCount, popupTrigger, button));
898 }
899 mouseClickButtons &= ~eventButtonMask;
900 }
901 }
902 notifyUpdateCursor();
903 }
904
905 private void generateMouseEnterExitEventsForComponents(long when,
906 int button, int x, int y, int screenX, int screenY,
907 int modifiers, int clickCount, boolean popupTrigger,
908 final LWComponentPeer<?, ?> targetPeer) {
909
910 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
911 return;
912 }
913
914 // Generate Mouse Exit for components
915 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
916 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
917 Component target = lastMouseEventPeer.getTarget();
918 postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
919 clickCount, popupTrigger, button);
920 }
921 lastCommonMouseEventPeer = targetPeer;
922 lastMouseEventPeer = targetPeer;
923
924 // Generate Mouse Enter for components
925 if (targetPeer != null && targetPeer.isEnabled()) {
926 Point newp = targetPeer.windowToLocal(x, y, this);
927 Component target = targetPeer.getTarget();
928 postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
929 }
930 }
931
932 private void postMouseEnteredEvent(Component target, long when, int modifiers,
933 Point loc, int xAbs, int yAbs,
934 int clickCount, boolean popupTrigger, int button) {
935
936 updateSecurityWarningVisibility();
937
938 postEvent(new MouseEvent(target,
939 MouseEvent.MOUSE_ENTERED,
940 when, modifiers,
941 loc.x, loc.y, xAbs, yAbs,
942 clickCount, popupTrigger, button));
943 }
944
945 private void postMouseExitedEvent(Component target, long when, int modifiers,
946 Point loc, int xAbs, int yAbs,
947 int clickCount, boolean popupTrigger, int button) {
948
949 updateSecurityWarningVisibility();
950
951 postEvent(new MouseEvent(target,
952 MouseEvent.MOUSE_EXITED,
953 when, modifiers,
954 loc.x, loc.y, xAbs, yAbs,
955 clickCount, popupTrigger, button));
956 }
957
958 @Override
959 public void notifyMouseWheelEvent(long when, int x, int y, int absX,
960 int absY, int modifiers, int scrollType,
961 int scrollAmount, int wheelRotation,
962 double preciseWheelRotation, byte[] bdata)
963 {
964 // TODO: could we just use the last mouse event target here?
965 Rectangle r = getBounds();
966 // findPeerAt() expects parent coordinates
967 final LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
968 if (targetPeer == null || !targetPeer.isEnabled()) {
969 return;
970 }
971
972 Point lp = targetPeer.windowToLocal(x, y, this);
973 // TODO: fill "bdata" member of AWTEvent
974 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
975 MouseEvent.MOUSE_WHEEL,
976 when, modifiers,
977 lp.x, lp.y,
978 absX, absY, /* absX, absY */
979 0 /* clickCount */, false /* popupTrigger */,
980 scrollType, scrollAmount,
981 wheelRotation, preciseWheelRotation));
982 }
983
984 /*
985 * Called by the delegate when a key is pressed.
986 */
987 @Override
988 public void notifyKeyEvent(int id, long when, int modifiers,
989 int keyCode, char keyChar, int keyLocation)
990 {
991 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
992 Component focusOwner = kfmPeer.getCurrentFocusOwner();
993
994 if (focusOwner == null) {
995 focusOwner = kfmPeer.getCurrentFocusedWindow();
996 if (focusOwner == null) {
997 focusOwner = this.getTarget();
998 }
999 }
1000
1001 KeyEvent keyEvent = new KeyEvent(focusOwner, id, when, modifiers,
1002 keyCode, keyChar, keyLocation);
1003 AWTAccessor.getKeyEventAccessor().setExtendedKeyCode(keyEvent,
1004 (keyChar == KeyEvent.CHAR_UNDEFINED) ? keyCode
1005 : ExtendedKeyCodes.getExtendedKeyCodeForChar(keyChar));
1006 postEvent(keyEvent);
1007 }
1008
1009 // ---- UTILITY METHODS ---- //
1010
1011 private void activateDisplayListener() {
1012 final GraphicsEnvironment ge =
1013 GraphicsEnvironment.getLocalGraphicsEnvironment();
1014 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
1015 }
1016
1017 private void deactivateDisplayListener() {
1018 final GraphicsEnvironment ge =
1019 GraphicsEnvironment.getLocalGraphicsEnvironment();
1020 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
1021 }
1022
1023 private void postWindowStateChangedEvent(int newWindowState) {
1024 if (getTarget() instanceof Frame) {
1025 AWTAccessor.getFrameAccessor().setExtendedState(
1026 (Frame)getTarget(), newWindowState);
1027 }
1028
1029 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
1030 WindowEvent.WINDOW_STATE_CHANGED,
1031 windowState, newWindowState);
1032 postEvent(stateChangedEvent);
1033 windowState = newWindowState;
1034
1035 updateSecurityWarningVisibility();
1036 }
1037
1038 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
1039 // TODO: this method can be implemented in a more
1040 // efficient way by forwarding to the delegate
1041 GraphicsDevice gd = gc.getDevice();
1042 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
1043 GraphicsDevice[] gds = ge.getScreenDevices();
1044 for (int i = 0; i < gds.length; i++) {
1045 if (gds[i] == gd) {
1046 return i;
1047 }
1048 }
1049 // Should never happen if gc is a screen device config
1050 return 0;
1051 }
1052
1053 /*
1054 * This method is called when window's graphics config is changed from
1055 * the app code (e.g. when the window is made non-opaque) or when
1056 * the window is moved to another screen by user.
1057 *
1058 * Returns true if the graphics config has been changed, false otherwise.
1059 */
1060 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
1061 synchronized (getStateLock()) {
1062 if (graphicsConfig == gc) {
1063 return false;
1064 }
1065 // If window's graphics config is changed from the app code, the
1066 // config correspond to the same device as before; when the window
1067 // is moved by user, graphicsDevice is updated in notifyReshape().
1068 // In either case, there's nothing to do with screenOn here
1069 graphicsConfig = gc;
1070 }
1071 // SurfaceData is replaced later in updateGraphicsData()
1072 return true;
1073 }
1074
1075 /**
1076 * Returns true if the GraphicsDevice has been changed, false otherwise.
1077 */
1078 public boolean updateGraphicsDevice() {
1079 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
1080 synchronized (getStateLock()) {
1081 if (graphicsDevice == newGraphicsDevice) {
1082 return false;
1083 }
1084 graphicsDevice = newGraphicsDevice;
1085 }
1086
1087 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
1088
1089 if (!setGraphicsConfig(newGC)) return false;
1090
1091 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
1092 public void run() {
1093 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1094 }
1095 });
1096 return true;
1097 }
1098
1099 @Override
1100 public final void displayChanged() {
1101 if (updateGraphicsDevice()) {
1102 updateMinimumSize();
1103 if (!isMaximizedBoundsSet()) {
1104 setPlatformMaximizedBounds(getDefaultMaximizedBounds());
1105 }
1106 }
1107 // Replace surface unconditionally, because internal state of the
1108 // GraphicsDevice could be changed.
1109 replaceSurfaceData();
1110 repaintPeer();
1111 }
1112
1113 @Override
1114 public final void paletteChanged() {
1115 // components do not need to react to this event.
1116 }
1117
1118 /*
1119 * May be called by delegate to provide SD to Java2D code.
1120 */
1121 public SurfaceData getSurfaceData() {
1122 synchronized (surfaceDataLock) {
1123 return surfaceData;
1124 }
1125 }
1126
1127 private void replaceSurfaceData() {
1128 replaceSurfaceData(true);
1129 }
1130
1131 private void replaceSurfaceData(final boolean blit) {
1132 synchronized (surfaceDataLock) {
1133 final SurfaceData oldData = getSurfaceData();
1134 surfaceData = platformWindow.replaceSurfaceData();
1135 final Rectangle size = getSize();
1136 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1137 clearBackground(size.width, size.height);
1138 }
1139
1140 if (blit) {
1141 blitSurfaceData(oldData, getSurfaceData());
1142 }
1143
1144 if (oldData != null && oldData != getSurfaceData()) {
1145 // TODO: drop oldData for D3D/WGL pipelines
1146 // This can only happen when this peer is being created
1147 oldData.flush();
1148 }
1149 }
1150 flushOnscreenGraphics();
1151 }
1152
1153 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1154 //TODO blit. proof-of-concept
1155 if (src != dst && src != null && dst != null
1156 && !(dst instanceof NullSurfaceData)
1157 && !(src instanceof NullSurfaceData)
1158 && src.getSurfaceType().equals(dst.getSurfaceType())
1159 && src.getDefaultScaleX() == dst.getDefaultScaleX()
1160 && src.getDefaultScaleY() == dst.getDefaultScaleY())
1161 {
1162 final Rectangle size = src.getBounds();
1163 final Blit blit = Blit.locate(src.getSurfaceType(),
1164 CompositeType.Src,
1165 dst.getSurfaceType());
1166 if (blit != null) {
1167 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1168 size.width, size.height);
1169 }
1170 }
1171 }
1172
1173 /**
1174 * Request the window insets from the delegate and compares it with the
1175 * current one. This method is mostly called by the delegate, e.g. when the
1176 * window state is changed and insets should be recalculated.
1177 * <p/>
1178 * This method may be called on the toolkit thread.
1179 */
1180 public final boolean updateInsets(final Insets newInsets) {
1181 synchronized (getStateLock()) {
1182 if (insets.equals(newInsets)) {
1183 return false;
1184 }
1185 insets = newInsets;
1186 }
1187 return true;
1188 }
1189
1190 public static LWWindowPeer getWindowUnderCursor() {
1191 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1192 }
1193
1194 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1195 return lastCommonMouseEventPeer;
1196 }
1197
1198 /*
1199 * Requests platform to set native focus on a frame/dialog.
1200 * In case of a simple window, triggers appropriate java focus change.
1201 */
1202 public boolean requestWindowFocus(FocusEvent.Cause cause) {
1203 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1204 focusLog.fine("requesting native focus to " + this);
1205 }
1206
1207 if (!focusAllowedFor()) {
1208 focusLog.fine("focus is not allowed");
1209 return false;
1210 }
1211
1212 if (platformWindow.rejectFocusRequest(cause)) {
1213 return false;
1214 }
1215
1216 AppContext targetAppContext = AWTAccessor.getComponentAccessor().getAppContext(getTarget());
1217 KeyboardFocusManager kfm = AWTAccessor.getKeyboardFocusManagerAccessor()
1218 .getCurrentKeyboardFocusManager(targetAppContext);
1219 Window currentActive = kfm.getActiveWindow();
1220
1221
1222 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1223 getCurrentFocusedWindow();
1224
1225 // Make the owner active window.
1226 if (isSimpleWindow()) {
1227 LWWindowPeer owner = getOwnerFrameDialog(this);
1228
1229 // If owner is not natively active, request native
1230 // activation on it w/o sending events up to java.
1231 if (owner != null && !owner.platformWindow.isActive()) {
1232 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1233 focusLog.fine("requesting native focus to the owner " + owner);
1234 }
1235 LWWindowPeer currentActivePeer = currentActive == null ? null :
1236 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(
1237 currentActive);
1238
1239 // Ensure the opposite is natively active and suppress sending events.
1240 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1241 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1242 focusLog.fine("the opposite is " + currentActivePeer);
1243 }
1244 currentActivePeer.skipNextFocusChange = true;
1245 }
1246 owner.skipNextFocusChange = true;
1247
1248 owner.platformWindow.requestWindowFocus();
1249 }
1250
1251 // DKFM will synthesize all the focus/activation events correctly.
1252 changeFocusedWindow(true, opposite);
1253 return true;
1254
1255 // In case the toplevel is active but not focused, change focus directly,
1256 // as requesting native focus on it will not have effect.
1257 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1258
1259 changeFocusedWindow(true, opposite);
1260 return true;
1261 }
1262
1263 return platformWindow.requestWindowFocus();
1264 }
1265
1266 protected boolean focusAllowedFor() {
1267 Window window = getTarget();
1268 // TODO: check if modal blocked
1269 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1270 }
1271
1272 private boolean isFocusableWindow() {
1273 boolean focusable = targetFocusable;
1274 if (isSimpleWindow()) {
1275 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1276 if (ownerPeer == null) {
1277 return false;
1278 }
1279 return focusable && ownerPeer.targetFocusable;
1280 }
1281 return focusable;
1282 }
1283
1284 public boolean isSimpleWindow() {
1285 Window window = getTarget();
1286 return !(window instanceof Dialog || window instanceof Frame);
1287 }
1288
1289 @Override
1290 public void emulateActivation(boolean activate) {
1291 changeFocusedWindow(activate, null);
1292 }
1293
1294 @SuppressWarnings("deprecation")
1295 private boolean isOneOfOwnersOf(LWWindowPeer peer) {
1296 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1297 while (owner != null) {
1298 final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
1299 if (acc.getPeer(owner) == this) {
1300 return true;
1301 }
1302 owner = owner.getOwner();
1303 }
1304 return false;
1305 }
1306
1307 /*
1308 * Changes focused window on java level.
1309 */
1310 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1311 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1312 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1313 }
1314 if (skipNextFocusChange) {
1315 focusLog.fine("skipping focus change");
1316 skipNextFocusChange = false;
1317 return;
1318 }
1319 if (!isFocusableWindow() && becomesFocused) {
1320 focusLog.fine("the window is not focusable");
1321 return;
1322 }
1323 if (becomesFocused) {
1324 synchronized (getPeerTreeLock()) {
1325 if (blocker != null) {
1326 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1327 focusLog.finest("the window is blocked by " + blocker);
1328 }
1329 return;
1330 }
1331 }
1332 }
1333
1334 // Note, the method is not called:
1335 // - when the opposite (gaining focus) window is an owned/owner window.
1336 // - for a simple window in any case.
1337 if (!becomesFocused &&
1338 (isGrabbing() || this.isOneOfOwnersOf(grabbingWindow)))
1339 {
1340 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1341 focusLog.fine("ungrabbing on " + grabbingWindow);
1342 }
1343 // ungrab a simple window if its owner looses activation.
1344 grabbingWindow.ungrab();
1345 }
1346
1347 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1348
1349 if (!becomesFocused && kfmPeer.getCurrentFocusedWindow() != getTarget()) {
1350 // late window focus lost event - ingoring
1351 return;
1352 }
1353
1354 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1355
1356 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1357 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1358
1359 // TODO: wrap in SequencedEvent
1360 postEvent(windowEvent);
1361 }
1362
1363 /*
1364 * Retrieves the owner of the peer.
1365 * Note: this method returns the owner which can be activated, (i.e. the instance
1366 * of Frame or Dialog may be returned).
1367 */
1368 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1369 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1370 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1371 owner = owner.getOwner();
1372 }
1373 return owner == null ? null : AWTAccessor.getComponentAccessor()
1374 .getPeer(owner);
1375 }
1376
1377 /**
1378 * Returns the foremost modal blocker of this window, or null.
1379 */
1380 public LWWindowPeer getBlocker() {
1381 synchronized (getPeerTreeLock()) {
1382 LWWindowPeer blocker = this.blocker;
1383 if (blocker == null) {
1384 return null;
1385 }
1386 while (blocker.blocker != null) {
1387 blocker = blocker.blocker;
1388 }
1389 return blocker;
1390 }
1391 }
1392
1393 @Override
1394 public void enterFullScreenMode() {
1395 platformWindow.enterFullScreenMode();
1396 updateSecurityWarningVisibility();
1397 }
1398
1399 @Override
1400 public void exitFullScreenMode() {
1401 platformWindow.exitFullScreenMode();
1402 updateSecurityWarningVisibility();
1403 }
1404
1405 public long getLayerPtr() {
1406 return getPlatformWindow().getLayerPtr();
1407 }
1408
1409 void grab() {
1410 if (grabbingWindow != null && !isGrabbing()) {
1411 grabbingWindow.ungrab();
1412 }
1413 grabbingWindow = this;
1414 }
1415
1416 final void ungrab(boolean doPost) {
1417 if (isGrabbing()) {
1418 grabbingWindow = null;
1419 if (doPost) {
1420 postEvent(new UngrabEvent(getTarget()));
1421 }
1422 }
1423 }
1424
1425 void ungrab() {
1426 ungrab(true);
1427 }
1428
1429 private boolean isGrabbing() {
1430 return this == grabbingWindow;
1431 }
1432
1433 public PeerType getPeerType() {
1434 return peerType;
1435 }
1436
1437 public void updateSecurityWarningVisibility() {
1438 if (warningWindow == null) {
1439 return;
1440 }
1441
1442 if (!isVisible()) {
1443 return; // The warning window should already be hidden.
1444 }
1445
1446 boolean show = false;
1447
1448 if (!platformWindow.isFullScreenMode()) {
1449 if (isVisible()) {
1450 if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
1451 getTarget()) {
1452 show = true;
1453 }
1454
1455 if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
1456 show = true;
1457 }
1458 }
1459 }
1460
1461 warningWindow.setVisible(show, true);
1462 }
1463
1464 @Override
1465 public String toString() {
1466 return super.toString() + " [target is " + getTarget() + "]";
1467 }
1468 }
--- EOF ---