1 /*
2 * Copyright (c) 2011, 2013, 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.java2d.*;
37 import sun.java2d.loops.Blit;
38 import sun.java2d.loops.CompositeType;
39 import sun.java2d.pipe.Region;
40 import sun.util.logging.PlatformLogger;
41
42 public class LWWindowPeer
43 extends LWContainerPeer<Window, JComponent>
44 implements WindowPeer, FramePeer, DialogPeer, FullScreenCapable
45 {
46 public static enum PeerType {
47 SIMPLEWINDOW,
48 FRAME,
49 DIALOG,
50 EMBEDDED_FRAME,
51 VIEW_EMBEDDED_FRAME,
52 LW_FRAME
53 }
54
55 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
56
57 private final PlatformWindow platformWindow;
58
59 // Window bounds reported by the native system (as opposed to
60 // regular bounds inherited from LWComponentPeer which are
61 // requested by user and may haven't been applied yet because
62 // of asynchronous requests to the windowing system)
63 private int sysX;
64 private int sysY;
65 private int sysW;
66 private int sysH;
67
68 private static final int MINIMUM_WIDTH = 1;
69 private static final int MINIMUM_HEIGHT = 1;
70
71 private Insets insets = new Insets(0, 0, 0, 0);
72
73 private GraphicsDevice graphicsDevice;
74 private GraphicsConfiguration graphicsConfig;
75
76 private SurfaceData surfaceData;
77 private final Object surfaceDataLock = new Object();
78
79 private volatile int windowState = Frame.NORMAL;
80
81 // check that the mouse is over the window
82 private volatile boolean isMouseOver = false;
83
84 // A peer where the last mouse event came to. Used by cursor manager to
85 // find the component under cursor
86 private static volatile LWComponentPeer lastCommonMouseEventPeer = null;
87
88 // A peer where the last mouse event came to. Used to generate
89 // MOUSE_ENTERED/EXITED notifications
90 private volatile LWComponentPeer lastMouseEventPeer;
91
92 // Peers where all dragged/released events should come to,
93 // depending on what mouse button is being dragged according to Cocoa
94 private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3];
95
96 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
97 // on MOUSE_RELEASE. Click events are only generated if there were no drag
98 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
99 private static int mouseClickButtons = 0;
100
101 private volatile boolean isOpaque = true;
102
103 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
104
105 private static LWWindowPeer grabbingWindow;
106
107 private volatile boolean skipNextFocusChange;
108
109 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
110
111 private volatile boolean textured;
112
113 private final PeerType peerType;
114
115 /**
116 * Current modal blocker or null.
117 *
118 * Synchronization: peerTreeLock.
119 */
120 private LWWindowPeer blocker;
121
122 public LWWindowPeer(Window target, PlatformComponent platformComponent,
123 PlatformWindow platformWindow, PeerType peerType)
124 {
125 super(target, platformComponent);
126 this.platformWindow = platformWindow;
127 this.peerType = peerType;
128
129 Window owner = target.getOwner();
130 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null;
131 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
132
133 // The delegate.initialize() needs a non-null GC on X11.
134 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
135 synchronized (getStateLock()) {
136 // graphicsConfig should be updated according to the real window
137 // bounds when the window is shown, see 4868278
138 this.graphicsConfig = gc;
139 }
140
141 if (!target.isFontSet()) {
142 target.setFont(DEFAULT_FONT);
143 }
144
145 if (!target.isBackgroundSet()) {
146 target.setBackground(SystemColor.window);
147 } else {
148 // first we check if user provided alpha for background. This is
149 // similar to what Apple's Java do.
150 // Since JDK7 we should rely on setOpacity() only.
151 // this.opacity = c.getAlpha();
152 }
153
154 if (!target.isForegroundSet()) {
155 target.setForeground(SystemColor.windowText);
156 // we should not call setForeground because it will call a repaint
157 // which the peer may not be ready to do yet.
158 }
159
160 platformWindow.initialize(target, this, ownerDelegate);
161 }
162
163 @Override
164 void initializeImpl() {
165 super.initializeImpl();
166 if (getTarget() instanceof Frame) {
167 setTitle(((Frame) getTarget()).getTitle());
168 setState(((Frame) getTarget()).getExtendedState());
169 } else if (getTarget() instanceof Dialog) {
170 setTitle(((Dialog) getTarget()).getTitle());
171 }
172
173 setAlwaysOnTop(getTarget().isAlwaysOnTop());
174 updateMinimumSize();
175
176 final Shape shape = getTarget().getShape();
177 if (shape != null) {
178 applyShape(Region.getInstance(shape, null));
179 }
180
181 final float opacity = getTarget().getOpacity();
182 if (opacity < 1.0f) {
183 setOpacity(opacity);
184 }
185
186 setOpaque(getTarget().isOpaque());
187
188 updateInsets(platformWindow.getInsets());
189 if (getSurfaceData() == null) {
190 replaceSurfaceData(false);
191 }
192 }
193
194 // Just a helper method
195 public PlatformWindow getPlatformWindow() {
196 return platformWindow;
197 }
198
199 @Override
200 protected LWWindowPeer getWindowPeerOrSelf() {
201 return this;
202 }
203
204 @Override
205 protected void initializeContainerPeer() {
206 // No-op as LWWindowPeer doesn't have any containerPeer
207 }
208
209 // ---- PEER METHODS ---- //
210
211 @Override
212 protected void disposeImpl() {
213 SurfaceData oldData = getSurfaceData();
214 synchronized (surfaceDataLock){
215 surfaceData = null;
216 }
217 if (oldData != null) {
218 oldData.invalidate();
219 }
220 if (isGrabbing()) {
221 ungrab();
222 }
223 platformWindow.dispose();
224 super.disposeImpl();
225 }
226
227 @Override
228 protected void setVisibleImpl(final boolean visible) {
229 super.setVisibleImpl(visible);
230 // TODO: update graphicsConfig, see 4868278
231 platformWindow.setVisible(visible);
232 if (isSimpleWindow()) {
233 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
234
235 if (visible) {
236 if (!getTarget().isAutoRequestFocus()) {
237 return;
238 } else {
239 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
240 }
241 // Focus the owner in case this window is focused.
242 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
243 // Transfer focus to the owner.
244 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
245 if (owner != null) {
246 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
247 }
248 }
249 }
250 }
251
252 @Override
253 public final GraphicsConfiguration getGraphicsConfiguration() {
254 synchronized (getStateLock()) {
255 return graphicsConfig;
256 }
257 }
258
259 @Override
260 public boolean updateGraphicsData(GraphicsConfiguration gc) {
261 setGraphicsConfig(gc);
262 return false;
263 }
264
265 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
266 if (getSurfaceData() == null) {
267 return null;
268 }
269 if (fg == null) {
270 fg = SystemColor.windowText;
271 }
272 if (bg == null) {
273 bg = SystemColor.window;
274 }
275 if (f == null) {
276 f = DEFAULT_FONT;
277 }
278 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
279 }
280
281 @Override
282 public void setBounds(int x, int y, int w, int h, int op) {
283
284 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
285 return;
286 }
287
288 if ((op & SET_CLIENT_SIZE) != 0) {
289 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
290 // instead of pulling 'insets' field up to LWComponentPeer
291 // no need to add insets since Window's notion of width and height includes insets.
292 op &= ~SET_CLIENT_SIZE;
293 op |= SET_SIZE;
294 }
295
296 if (w < MINIMUM_WIDTH) {
297 w = MINIMUM_WIDTH;
298 }
299 if (h < MINIMUM_HEIGHT) {
300 h = MINIMUM_HEIGHT;
301 }
302
303 final int maxW = getLWGC().getMaxTextureWidth();
304 final int maxH = getLWGC().getMaxTextureHeight();
305
306 if (w > maxW) {
307 w = maxW;
308 }
309 if (h > maxH) {
310 h = maxH;
311 }
312
313 // Don't post ComponentMoved/Resized and Paint events
314 // until we've got a notification from the delegate
315 setBounds(x, y, w, h, op, false, false);
316 // Get updated bounds, so we don't have to handle 'op' here manually
317 Rectangle r = getBounds();
318 platformWindow.setBounds(r.x, r.y, r.width, r.height);
319 }
320
321 @Override
322 public Point getLocationOnScreen() {
323 return platformWindow.getLocationOnScreen();
324 }
325
326 /**
327 * Overridden from LWContainerPeer to return the correct insets.
328 * Insets are queried from the delegate and are kept up to date by
329 * requiering when needed (i.e. when the window geometry is changed).
330 */
331 @Override
332 public Insets getInsets() {
333 synchronized (getStateLock()) {
334 return insets;
335 }
336 }
337
338 @Override
339 public FontMetrics getFontMetrics(Font f) {
340 // TODO: check for "use platform metrics" settings
341 return platformWindow.getFontMetrics(f);
342 }
343
344 @Override
345 public void toFront() {
346 platformWindow.toFront();
347 }
348
349 @Override
350 public void toBack() {
351 platformWindow.toBack();
352 }
353
354 @Override
355 public void setZOrder(ComponentPeer above) {
356 throw new RuntimeException("not implemented");
357 }
358
359 @Override
360 public void setAlwaysOnTop(boolean value) {
361 platformWindow.setAlwaysOnTop(value);
362 }
363
364 @Override
365 public void updateFocusableWindowState() {
366 platformWindow.updateFocusableWindowState();
367 }
368
369 @Override
370 public void setModalBlocked(Dialog blocker, boolean blocked) {
371 synchronized (getPeerTreeLock()) {
372 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
373 }
374
375 platformWindow.setModalBlocked(blocked);
376 }
377
378 @Override
379 public void updateMinimumSize() {
380 final Dimension min;
381 if (getTarget().isMinimumSizeSet()) {
382 min = getTarget().getMinimumSize();
383 min.width = Math.max(min.width, MINIMUM_WIDTH);
384 min.height = Math.max(min.height, MINIMUM_HEIGHT);
385 } else {
386 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
387 }
388
389 final Dimension max;
390 if (getTarget().isMaximumSizeSet()) {
391 max = getTarget().getMaximumSize();
392 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
393 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
394 } else {
395 max = new Dimension(getLWGC().getMaxTextureWidth(),
396 getLWGC().getMaxTextureHeight());
397 }
398
399 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
400 }
401
402 @Override
403 public void updateIconImages() {
404 getPlatformWindow().updateIconImages();
405 }
406
407 @Override
408 public void setOpacity(float opacity) {
409 getPlatformWindow().setOpacity(opacity);
410 repaintPeer();
411 }
412
413 @Override
414 public final void setOpaque(final boolean isOpaque) {
415 if (this.isOpaque != isOpaque) {
416 this.isOpaque = isOpaque;
417 updateOpaque();
418 }
419 }
420
421 private void updateOpaque() {
422 getPlatformWindow().setOpaque(!isTranslucent());
423 replaceSurfaceData(false);
424 repaintPeer();
425 }
426
427 @Override
428 public void updateWindow() {
429 }
430
431 public final boolean isTextured() {
432 return textured;
433 }
434
435 public final void setTextured(final boolean isTextured) {
436 textured = isTextured;
437 }
438
439 public final boolean isTranslucent() {
440 synchronized (getStateLock()) {
441 /*
442 * Textured window is a special case of translucent window.
443 * The difference is only in nswindow background. So when we set
444 * texture property our peer became fully translucent. It doesn't
445 * fill background, create non opaque backbuffers and layer etc.
446 */
447 return !isOpaque || isShaped() || isTextured();
448 }
449 }
450
451 @Override
452 final void applyShapeImpl(final Region shape) {
453 super.applyShapeImpl(shape);
454 updateOpaque();
455 }
456
457 @Override
458 public void repositionSecurityWarning() {
459 throw new RuntimeException("not implemented");
460 }
461
462 // ---- FRAME PEER METHODS ---- //
463
464 @Override // FramePeer and DialogPeer
465 public void setTitle(String title) {
466 platformWindow.setTitle(title == null ? "" : title);
467 }
468
469 @Override
470 public void setMenuBar(MenuBar mb) {
471 platformWindow.setMenuBar(mb);
472 }
473
474 @Override // FramePeer and DialogPeer
475 public void setResizable(boolean resizable) {
476 platformWindow.setResizable(resizable);
477 }
478
479 @Override
480 public void setState(int state) {
481 platformWindow.setWindowState(state);
482 }
483
484 @Override
485 public int getState() {
486 return windowState;
487 }
488
489 @Override
490 public void setMaximizedBounds(Rectangle bounds) {
491 // TODO: not implemented
492 }
493
494 @Override
495 public void setBoundsPrivate(int x, int y, int width, int height) {
496 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
497 }
498
499 @Override
500 public Rectangle getBoundsPrivate() {
501 throw new RuntimeException("not implemented");
502 }
503
504 // ---- DIALOG PEER METHODS ---- //
505
506 @Override
507 public void blockWindows(List<Window> windows) {
508 //TODO: LWX will probably need some collectJavaToplevels to speed this up
509 for (Window w : windows) {
510 WindowPeer wp = (WindowPeer)w.getPeer();
511 if (wp != null) {
512 wp.setModalBlocked((Dialog)getTarget(), true);
513 }
514 }
515 }
516
517 // ---- PEER NOTIFICATIONS ---- //
518
519 public void notifyIconify(boolean iconify) {
520 //The toplevel target is Frame and states are applicable to it.
521 //Otherwise, the target is Window and it don't have state property.
522 //Hopefully, no such events are posted in the queue so consider the
523 //target as Frame in all cases.
524
525 // REMIND: should we send it anyway if the state not changed since last
526 // time?
527 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
528 iconify ? WindowEvent.WINDOW_ICONIFIED
529 : WindowEvent.WINDOW_DEICONIFIED);
530 postEvent(iconifyEvent);
531
532 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
533 postWindowStateChangedEvent(newWindowState);
534
535 // REMIND: RepaintManager doesn't repaint iconified windows and
536 // hence ignores any repaint request during deiconification.
537 // So, we need to repaint window explicitly when it becomes normal.
538 if (!iconify) {
539 repaintPeer();
540 }
541 }
542
543 public void notifyZoom(boolean isZoomed) {
544 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
545 postWindowStateChangedEvent(newWindowState);
546 }
547
548 /**
549 * Called by the {@code PlatformWindow} when any part of the window should
550 * be repainted.
551 */
552 public final void notifyExpose(final Rectangle r) {
553 repaintPeer(r);
554 }
555
556 /**
557 * Called by the {@code PlatformWindow} when this window is moved/resized by
558 * user or window insets are changed. There's no notifyReshape() in
559 * LWComponentPeer as the only components which could be resized by user are
560 * top-level windows.
561 */
562 public final void notifyReshape(int x, int y, int w, int h) {
563 final boolean moved;
564 final boolean resized;
565 final boolean invalid = updateInsets(platformWindow.getInsets());
566 synchronized (getStateLock()) {
567 moved = (x != sysX) || (y != sysY);
568 resized = (w != sysW) || (h != sysH);
569 sysX = x;
570 sysY = y;
571 sysW = w;
572 sysH = h;
573 }
574
575 // Check if anything changed
576 if (!moved && !resized && !invalid) {
577 return;
578 }
579 // First, update peer's bounds
580 setBounds(x, y, w, h, SET_BOUNDS, false, false);
581
582 // Second, update the graphics config and surface data
583 checkIfOnNewScreen();
584 if (resized) {
585 replaceSurfaceData();
586 flushOnscreenGraphics();
587 }
588
589 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
590 if (moved || invalid) {
591 handleMove(x, y, true);
592 }
593 if (resized || invalid) {
594 handleResize(w, h, true);
595 repaintPeer();
596 }
597 }
598
599 private void clearBackground(final int w, final int h) {
600 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
601 getFont());
602 if (g != null) {
603 try {
604 if (g instanceof Graphics2D) {
605 ((Graphics2D) g).setComposite(AlphaComposite.Src);
606 }
607 if (isTranslucent()) {
608 g.setColor(nonOpaqueBackground);
609 g.fillRect(0, 0, w, h);
610 }
611 if (!isTextured()) {
612 if (g instanceof SunGraphics2D) {
613 SG2DConstraint((SunGraphics2D) g, getRegion());
614 }
615 g.setColor(getBackground());
616 g.fillRect(0, 0, w, h);
617 }
618 } finally {
619 g.dispose();
620 }
621 }
622 }
623
624 public void notifyUpdateCursor() {
625 getLWToolkit().getCursorManager().updateCursorLater(this);
626 }
627
628 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
629 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
630 changeFocusedWindow(activation, oppositeWindow);
631 }
632
633 // MouseDown in non-client area
634 public void notifyNCMouseDown() {
635 // Ungrab except for a click on a Dialog with the grabbing owner
636 if (grabbingWindow != null &&
637 grabbingWindow != getOwnerFrameDialog(this))
638 {
639 grabbingWindow.ungrab();
640 }
641 }
642
643 // ---- EVENTS ---- //
644
645 /*
646 * Called by the delegate to dispatch the event to Java. Event
647 * coordinates are relative to non-client window are, i.e. the top-left
648 * point of the client area is (insets.top, insets.left).
649 */
650 public void dispatchMouseEvent(int id, long when, int button,
651 int x, int y, int screenX, int screenY,
652 int modifiers, int clickCount, boolean popupTrigger,
653 byte[] bdata)
654 {
655 // TODO: fill "bdata" member of AWTEvent
656 Rectangle r = getBounds();
657 // findPeerAt() expects parent coordinates
658 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
659
660 if (id == MouseEvent.MOUSE_EXITED) {
661 isMouseOver = false;
662 if (lastMouseEventPeer != null) {
663 if (lastMouseEventPeer.isEnabled()) {
664 Point lp = lastMouseEventPeer.windowToLocal(x, y,
665 this);
666 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
667 MouseEvent.MOUSE_EXITED, when,
668 modifiers, lp.x, lp.y, screenX,
669 screenY, clickCount, popupTrigger,
670 button));
671 }
672
673 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
674 // to a peer from another window. So we must first check if this peer is
675 // the same as lastWindowPeer
676 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
677 lastCommonMouseEventPeer = null;
678 }
679 lastMouseEventPeer = null;
680 }
681 } else if(id == MouseEvent.MOUSE_ENTERED) {
682 isMouseOver = true;
683 if (targetPeer != null) {
684 if (targetPeer.isEnabled()) {
685 Point lp = targetPeer.windowToLocal(x, y, this);
686 postEvent(new MouseEvent(targetPeer.getTarget(),
687 MouseEvent.MOUSE_ENTERED, when,
688 modifiers, lp.x, lp.y, screenX,
689 screenY, clickCount, popupTrigger,
690 button));
691 }
692 lastCommonMouseEventPeer = targetPeer;
693 lastMouseEventPeer = targetPeer;
694 }
695 } else {
696 PlatformWindow topmostPlatforWindow =
697 platformWindow.getTopmostPlatformWindowUnderMouse();
698
699 LWWindowPeer topmostWindowPeer =
700 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
701
702 // topmostWindowPeer == null condition is added for the backward
703 // compatibility with applets. It can be removed when the
704 // getTopmostPlatformWindowUnderMouse() method will be properly
705 // implemented in CPlatformEmbeddedFrame class
706 if (topmostWindowPeer == this || topmostWindowPeer == null) {
707 generateMouseEnterExitEventsForComponents(when, button, x, y,
708 screenX, screenY, modifiers, clickCount, popupTrigger,
709 targetPeer);
710 } else {
711 LWComponentPeer topmostTargetPeer =
712 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
713 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
714 screenX, screenY, modifiers, clickCount, popupTrigger,
715 topmostTargetPeer);
716 }
717
718 // TODO: fill "bdata" member of AWTEvent
719
720 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
721 int otherButtonsPressed = modifiers & ~eventButtonMask;
722
723 // For pressed/dragged/released events OS X treats other
724 // mouse buttons as if they were BUTTON2, so we do the same
725 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
726
727 // MOUSE_ENTERED/EXITED are generated for the components strictly under
728 // mouse even when dragging. That's why we first update lastMouseEventPeer
729 // based on initial targetPeer value and only then recalculate targetPeer
730 // for MOUSE_DRAGGED/RELEASED events
731 if (id == MouseEvent.MOUSE_PRESSED) {
732
733 // Ungrab only if this window is not an owned window of the grabbing one.
734 if (!isGrabbing() && grabbingWindow != null &&
735 grabbingWindow != getOwnerFrameDialog(this))
736 {
737 grabbingWindow.ungrab();
738 }
739 if (otherButtonsPressed == 0) {
740 mouseClickButtons = eventButtonMask;
741 } else {
742 mouseClickButtons |= eventButtonMask;
743 }
744
745 // The window should be focused on mouse click. If it gets activated by the native platform,
746 // this request will be no op. It will take effect when:
747 // 1. A simple not focused window is clicked.
748 // 2. An active but not focused owner frame/dialog is clicked.
749 // The mouse event then will trigger a focus request "in window" to the component, so the window
750 // should gain focus before.
751 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
752
753 mouseDownTarget[targetIdx] = targetPeer;
754 } else if (id == MouseEvent.MOUSE_DRAGGED) {
755 // Cocoa dragged event has the information about which mouse
756 // button is being dragged. Use it to determine the peer that
757 // should receive the dragged event.
758 targetPeer = mouseDownTarget[targetIdx];
759 mouseClickButtons &= ~modifiers;
760 } else if (id == MouseEvent.MOUSE_RELEASED) {
761 // TODO: currently, mouse released event goes to the same component
762 // that received corresponding mouse pressed event. For most cases,
763 // it's OK, however, we need to make sure that our behavior is consistent
764 // with 1.6 for cases where component in question have been
765 // hidden/removed in between of mouse pressed/released events.
766 targetPeer = mouseDownTarget[targetIdx];
767
768 if ((modifiers & eventButtonMask) == 0) {
769 mouseDownTarget[targetIdx] = null;
770 }
771
772 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
773 }
774
775 if (targetPeer == null) {
776 //TODO This can happen if this window is invisible. this is correct behavior in this case?
777 targetPeer = this;
778 }
779
780
781 Point lp = targetPeer.windowToLocal(x, y, this);
782 if (targetPeer.isEnabled()) {
783 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
784 when, modifiers, lp.x, lp.y,
785 screenX, screenY, clickCount,
786 popupTrigger, button);
787 postEvent(event);
788 }
789
790 if (id == MouseEvent.MOUSE_RELEASED) {
791 if ((mouseClickButtons & eventButtonMask) != 0
792 && targetPeer.isEnabled()) {
793 postEvent(new MouseEvent(targetPeer.getTarget(),
794 MouseEvent.MOUSE_CLICKED,
795 when, modifiers,
796 lp.x, lp.y, screenX, screenY,
797 clickCount, popupTrigger, button));
798 }
799 mouseClickButtons &= ~eventButtonMask;
800 }
801 }
802 notifyUpdateCursor();
803 }
804
805 private void generateMouseEnterExitEventsForComponents(long when,
806 int button, int x, int y, int screenX, int screenY,
807 int modifiers, int clickCount, boolean popupTrigger,
808 LWComponentPeer targetPeer) {
809
810 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
811 return;
812 }
813
814 // Generate Mouse Exit for components
815 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
816 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
817 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
818 MouseEvent.MOUSE_EXITED,
819 when, modifiers,
820 oldp.x, oldp.y, screenX, screenY,
821 clickCount, popupTrigger, button));
822 }
823 lastCommonMouseEventPeer = targetPeer;
824 lastMouseEventPeer = targetPeer;
825
826 // Generate Mouse Enter for components
827 if (targetPeer != null && targetPeer.isEnabled()) {
828 Point newp = targetPeer.windowToLocal(x, y, this);
829 postEvent(new MouseEvent(targetPeer.getTarget(),
830 MouseEvent.MOUSE_ENTERED,
831 when, modifiers,
832 newp.x, newp.y, screenX, screenY,
833 clickCount, popupTrigger, button));
834 }
835 }
836
837 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
838 int scrollType, int scrollAmount,
839 int wheelRotation, double preciseWheelRotation,
840 byte[] bdata)
841 {
842 // TODO: could we just use the last mouse event target here?
843 Rectangle r = getBounds();
844 // findPeerAt() expects parent coordinates
845 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
846 if (targetPeer == null || !targetPeer.isEnabled()) {
847 return;
848 }
849
850 Point lp = targetPeer.windowToLocal(x, y, this);
851 // TODO: fill "bdata" member of AWTEvent
852 // TODO: screenX/screenY
853 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
854 MouseEvent.MOUSE_WHEEL,
855 when, modifiers,
856 lp.x, lp.y,
857 0, 0, /* screenX, Y */
858 0 /* clickCount */, false /* popupTrigger */,
859 scrollType, scrollAmount,
860 wheelRotation, preciseWheelRotation));
861 }
862
863 /*
864 * Called by the delegate when a key is pressed.
865 */
866 public void dispatchKeyEvent(int id, long when, int modifiers,
867 int keyCode, char keyChar, int keyLocation)
868 {
869 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
870 Component focusOwner = kfmPeer.getCurrentFocusOwner();
871
872 if (focusOwner == null) {
873 focusOwner = kfmPeer.getCurrentFocusedWindow();
874 if (focusOwner == null) {
875 focusOwner = this.getTarget();
876 }
877 }
878 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
879 }
880
881
882 // ---- UTILITY METHODS ---- //
883
884 private void postWindowStateChangedEvent(int newWindowState) {
885 if (getTarget() instanceof Frame) {
886 AWTAccessor.getFrameAccessor().setExtendedState(
887 (Frame)getTarget(), newWindowState);
888 }
889 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
890 WindowEvent.WINDOW_STATE_CHANGED,
891 windowState, newWindowState);
892 postEvent(stateChangedEvent);
893 windowState = newWindowState;
894 }
895
896 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
897 // TODO: this method can be implemented in a more
898 // efficient way by forwarding to the delegate
899 GraphicsDevice gd = gc.getDevice();
900 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
901 GraphicsDevice[] gds = ge.getScreenDevices();
902 for (int i = 0; i < gds.length; i++) {
903 if (gds[i] == gd) {
904 return i;
905 }
906 }
907 // Should never happen if gc is a screen device config
908 return 0;
909 }
910
911 /*
912 * This method is called when window's graphics config is changed from
913 * the app code (e.g. when the window is made non-opaque) or when
914 * the window is moved to another screen by user.
915 *
916 * Returns true if the graphics config has been changed, false otherwise.
917 */
918 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
919 synchronized (getStateLock()) {
920 if (graphicsConfig == gc) {
921 return false;
922 }
923 // If window's graphics config is changed from the app code, the
924 // config correspond to the same device as before; when the window
925 // is moved by user, graphicsDevice is updated in checkIfOnNewScreen().
926 // In either case, there's nothing to do with screenOn here
927 graphicsConfig = gc;
928 }
929 // SurfaceData is replaced later in updateGraphicsData()
930 return true;
931 }
932
933 private void checkIfOnNewScreen() {
934 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
935 synchronized (getStateLock()) {
936 if (graphicsDevice == newGraphicsDevice) {
937 return;
938 }
939 graphicsDevice = newGraphicsDevice;
940 }
941
942 // TODO: DisplayChangedListener stuff
943 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
944
945 if (!setGraphicsConfig(newGC)) return;
946
947 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
948 public void run() {
949 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
950 }
951 });
952 }
953
954 /*
955 * May be called by delegate to provide SD to Java2D code.
956 */
957 public SurfaceData getSurfaceData() {
958 synchronized (surfaceDataLock) {
959 return surfaceData;
960 }
961 }
962
963 private void replaceSurfaceData() {
964 replaceSurfaceData(true);
965 }
966
967 private void replaceSurfaceData(final boolean blit) {
968 synchronized (surfaceDataLock) {
969 final SurfaceData oldData = getSurfaceData();
970 surfaceData = platformWindow.replaceSurfaceData();
971 final Rectangle size = getSize();
972 if (getSurfaceData() != null && oldData != getSurfaceData()) {
973 clearBackground(size.width, size.height);
974 }
975
976 if (blit) {
977 blitSurfaceData(oldData, getSurfaceData());
978 }
979
980 if (oldData != null && oldData != getSurfaceData()) {
981 // TODO: drop oldData for D3D/WGL pipelines
982 // This can only happen when this peer is being created
983 oldData.flush();
984 }
985 }
986 }
987
988 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
989 //TODO blit. proof-of-concept
990 if (src != dst && src != null && dst != null
991 && !(dst instanceof NullSurfaceData)
992 && !(src instanceof NullSurfaceData)
993 && src.getSurfaceType().equals(dst.getSurfaceType())) {
994 final Rectangle size = getSize();
995 final Blit blit = Blit.locate(src.getSurfaceType(),
996 CompositeType.Src,
997 dst.getSurfaceType());
998 if (blit != null) {
999 blit.Blit(src, dst, AlphaComposite.Src,
1000 getRegion(), 0, 0, 0, 0, size.width, size.height);
1001 }
1002 }
1003 }
1004
1005 /**
1006 * Request the window insets from the delegate and compares it with the
1007 * current one. This method is mostly called by the delegate, e.g. when the
1008 * window state is changed and insets should be recalculated.
1009 * <p/>
1010 * This method may be called on the toolkit thread.
1011 */
1012 public final boolean updateInsets(final Insets newInsets) {
1013 synchronized (getStateLock()) {
1014 if (insets.equals(newInsets)) {
1015 return false;
1016 }
1017 insets = newInsets;
1018 }
1019 return true;
1020 }
1021
1022 public static LWWindowPeer getWindowUnderCursor() {
1023 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1024 }
1025
1026 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1027 return lastCommonMouseEventPeer;
1028 }
1029
1030 /*
1031 * Requests platform to set native focus on a frame/dialog.
1032 * In case of a simple window, triggers appropriate java focus change.
1033 */
1034 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1035 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1036 focusLog.fine("requesting native focus to " + this);
1037 }
1038
1039 if (!focusAllowedFor()) {
1040 focusLog.fine("focus is not allowed");
1041 return false;
1042 }
1043
1044 if (platformWindow.rejectFocusRequest(cause)) {
1045 return false;
1046 }
1047
1048 Window currentActive = KeyboardFocusManager.
1049 getCurrentKeyboardFocusManager().getActiveWindow();
1050
1051 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1052 getCurrentFocusedWindow();
1053
1054 // Make the owner active window.
1055 if (isSimpleWindow()) {
1056 LWWindowPeer owner = getOwnerFrameDialog(this);
1057
1058 // If owner is not natively active, request native
1059 // activation on it w/o sending events up to java.
1060 if (owner != null && !owner.platformWindow.isActive()) {
1061 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1062 focusLog.fine("requesting native focus to the owner " + owner);
1063 }
1064 LWWindowPeer currentActivePeer = (currentActive != null ?
1065 (LWWindowPeer)currentActive.getPeer() : null);
1066
1067 // Ensure the opposite is natively active and suppress sending events.
1068 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1069 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1070 focusLog.fine("the opposite is " + currentActivePeer);
1071 }
1072 currentActivePeer.skipNextFocusChange = true;
1073 }
1074 owner.skipNextFocusChange = true;
1075
1076 owner.platformWindow.requestWindowFocus();
1077 }
1078
1079 // DKFM will synthesize all the focus/activation events correctly.
1080 changeFocusedWindow(true, opposite);
1081 return true;
1082
1083 // In case the toplevel is active but not focused, change focus directly,
1084 // as requesting native focus on it will not have effect.
1085 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1086
1087 changeFocusedWindow(true, opposite);
1088 return true;
1089 }
1090
1091 return platformWindow.requestWindowFocus();
1092 }
1093
1094 protected boolean focusAllowedFor() {
1095 Window window = getTarget();
1096 // TODO: check if modal blocked
1097 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1098 }
1099
1100 private boolean isFocusableWindow() {
1101 boolean focusable = getTarget().isFocusableWindow();
1102 if (isSimpleWindow()) {
1103 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1104 if (ownerPeer == null) {
1105 return false;
1106 }
1107 return focusable && ownerPeer.getTarget().isFocusableWindow();
1108 }
1109 return focusable;
1110 }
1111
1112 public boolean isSimpleWindow() {
1113 Window window = getTarget();
1114 return !(window instanceof Dialog || window instanceof Frame);
1115 }
1116
1117 @Override
1118 public void emulateActivation(boolean activate) {
1119 changeFocusedWindow(activate, null);
1120 }
1121
1122 /*
1123 * Changes focused window on java level.
1124 */
1125 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1126 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1127 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1128 }
1129 if (skipNextFocusChange) {
1130 focusLog.fine("skipping focus change");
1131 skipNextFocusChange = false;
1132 return;
1133 }
1134 if (!isFocusableWindow() && becomesFocused) {
1135 focusLog.fine("the window is not focusable");
1136 return;
1137 }
1138 if (becomesFocused) {
1139 synchronized (getPeerTreeLock()) {
1140 if (blocker != null) {
1141 if (focusLog.isLoggable(PlatformLogger.FINEST)) {
1142 focusLog.finest("the window is blocked by " + blocker);
1143 }
1144 return;
1145 }
1146 }
1147 }
1148
1149 // Note, the method is not called:
1150 // - when the opposite (gaining focus) window is an owned/owner window.
1151 // - for a simple window in any case.
1152 if (!becomesFocused &&
1153 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1154 {
1155 focusLog.fine("ungrabbing on " + grabbingWindow);
1156 // ungrab a simple window if its owner looses activation.
1157 grabbingWindow.ungrab();
1158 }
1159
1160 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1161 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1162
1163 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1164 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1165
1166 // TODO: wrap in SequencedEvent
1167 postEvent(windowEvent);
1168 }
1169
1170 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1171 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1172 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1173 owner = owner.getOwner();
1174 }
1175 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1176 }
1177
1178 /**
1179 * Returns the foremost modal blocker of this window, or null.
1180 */
1181 public LWWindowPeer getBlocker() {
1182 synchronized (getPeerTreeLock()) {
1183 LWWindowPeer blocker = this.blocker;
1184 if (blocker == null) {
1185 return null;
1186 }
1187 while (blocker.blocker != null) {
1188 blocker = blocker.blocker;
1189 }
1190 return blocker;
1191 }
1192 }
1193
1194 public void enterFullScreenMode() {
1195 platformWindow.enterFullScreenMode();
1196 }
1197
1198 public void exitFullScreenMode() {
1199 platformWindow.exitFullScreenMode();
1200 }
1201
1202 public long getLayerPtr() {
1203 return getPlatformWindow().getLayerPtr();
1204 }
1205
1206 @Override
1207 public void grabFocus() {
1208 grab();
1209 }
1210
1211 @Override
1212 public void ungrabFocus(boolean postEvent) {
1213 ungrab(postEvent);
1214 }
1215
1216 void grab() {
1217 if (grabbingWindow != null && !isGrabbing()) {
1218 grabbingWindow.ungrab();
1219 }
1220 grabbingWindow = this;
1221 }
1222
1223 final void ungrab(boolean doPost) {
1224 if (isGrabbing()) {
1225 grabbingWindow = null;
1226 if (doPost) {
1227 postEvent(new UngrabEvent(getTarget()));
1228 }
1229 }
1230 }
1231
1232 void ungrab() {
1233 ungrab(true);
1234 }
1235
1236 private boolean isGrabbing() {
1237 return this == grabbingWindow;
1238 }
1239
1240 public PeerType getPeerType() {
1241 return peerType;
1242 }
1243
1244 @Override
1245 public String toString() {
1246 return super.toString() + " [target is " + getTarget() + "]";
1247 }
1248 }