1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.lwawt;
27
28 import java.awt.*;
29 import java.awt.event.*;
30 import java.awt.image.BufferedImage;
31 import java.awt.peer.*;
32 import java.util.List;
33
34 import javax.swing.*;
35
36 import sun.awt.*;
37 import sun.java2d.*;
38 import sun.java2d.loops.Blit;
39 import sun.java2d.loops.CompositeType;
40 import sun.java2d.pipe.Region;
41 import sun.util.logging.PlatformLogger;
42
43 public class LWWindowPeer
44 extends LWContainerPeer<Window, JComponent>
45 implements WindowPeer, FramePeer, DialogPeer, FullScreenCapable
46 {
47 public static enum PeerType {
48 SIMPLEWINDOW,
49 FRAME,
50 DIALOG,
51 EMBEDDEDFRAME
52 }
53
54 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
55
56 private PlatformWindow platformWindow;
57
58 // Window bounds reported by the native system (as opposed to
59 // regular bounds inherited from LWComponentPeer which are
60 // requested by user and may haven't been applied yet because
61 // of asynchronous requests to the windowing system)
62 private int sysX;
63 private int sysY;
64 private int sysW;
65 private int sysH;
66
67 private static final int MINIMUM_WIDTH = 1;
68 private static final int MINIMUM_HEIGHT = 1;
69
70 private Insets insets = new Insets(0, 0, 0, 0);
71
72 private GraphicsDevice graphicsDevice;
73 private GraphicsConfiguration graphicsConfig;
74
75 private SurfaceData surfaceData;
76 private final Object surfaceDataLock = new Object();
77
78 private int backBufferCount;
79 private BufferCapabilities backBufferCaps;
80
81 // The back buffer is used for two purposes:
82 // 1. To render all the lightweight peers
83 // 2. To provide user with a BufferStrategy
84 // Need to check if a single back buffer can be used for both
85 // TODO: VolatileImage
86 // private VolatileImage backBuffer;
87 private volatile BufferedImage backBuffer;
88
89 private volatile int windowState = Frame.NORMAL;
90
91 // A peer where the last mouse event came to. Used to generate
92 // MOUSE_ENTERED/EXITED notifications and by cursor manager to
93 // find the component under cursor
94 private static volatile LWComponentPeer lastMouseEventPeer = null;
95
96 // Peers where all dragged/released events should come to,
97 // depending on what mouse button is being dragged according to Cocoa
98 private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3];
99
100 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
101 // on MOUSE_RELEASE. Click events are only generated if there were no drag
102 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
103 private static int mouseClickButtons = 0;
104
105 private volatile boolean isOpaque = true;
106
107 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
108
109 private static LWWindowPeer grabbingWindow;
110
111 private volatile boolean skipNextFocusChange;
112
113 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
114
115 private volatile boolean textured;
116
117 /**
118 * Current modal blocker or null.
119 *
120 * Synchronization: peerTreeLock.
121 */
122 private LWWindowPeer blocker;
123
124 public LWWindowPeer(Window target, PlatformComponent platformComponent,
125 PlatformWindow platformWindow)
126 {
127 super(target, platformComponent);
128 this.platformWindow = platformWindow;
129
130 Window owner = target.getOwner();
131 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null;
132 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
133
134 // The delegate.initialize() needs a non-null GC on X11.
135 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
136 synchronized (getStateLock()) {
137 // graphicsConfig should be updated according to the real window
138 // bounds when the window is shown, see 4868278
139 this.graphicsConfig = gc;
140 }
141
142 if (!target.isFontSet()) {
143 target.setFont(DEFAULT_FONT);
144 }
145
146 if (!target.isBackgroundSet()) {
147 target.setBackground(SystemColor.window);
148 } else {
149 // first we check if user provided alpha for background. This is
150 // similar to what Apple's Java do.
151 // Since JDK7 we should rely on setOpacity() only.
152 // this.opacity = c.getAlpha();
153 }
154
155 if (!target.isForegroundSet()) {
156 target.setForeground(SystemColor.windowText);
157 // we should not call setForeground because it will call a repaint
158 // which the peer may not be ready to do yet.
159 }
160
161 platformWindow.initialize(target, this, ownerDelegate);
162 }
163
164 @Override
165 void initializeImpl() {
166 super.initializeImpl();
167 if (getTarget() instanceof Frame) {
168 setTitle(((Frame) getTarget()).getTitle());
169 setState(((Frame) getTarget()).getExtendedState());
170 } else if (getTarget() instanceof Dialog) {
171 setTitle(((Dialog) getTarget()).getTitle());
172 }
173
174 setAlwaysOnTop(getTarget().isAlwaysOnTop());
175 updateMinimumSize();
176
177 final Shape shape = getTarget().getShape();
178 if (shape != null) {
179 applyShape(Region.getInstance(shape, null));
180 }
181
182 final float opacity = getTarget().getOpacity();
183 if (opacity < 1.0f) {
184 setOpacity(opacity);
185 }
186
187 setOpaque(getTarget().isOpaque());
188
189 updateInsets(platformWindow.getInsets());
190 if (getSurfaceData() == null) {
191 replaceSurfaceData(false);
192 }
193 }
194
195 // Just a helper method
196 public PlatformWindow getPlatformWindow() {
197 return platformWindow;
198 }
199
200 @Override
201 protected LWWindowPeer getWindowPeerOrSelf() {
202 return this;
203 }
204
205 @Override
206 protected void initializeContainerPeer() {
207 // No-op as LWWindowPeer doesn't have any containerPeer
208 }
209
210 // ---- PEER METHODS ---- //
211
212 @Override
213 protected void disposeImpl() {
214 SurfaceData oldData = getSurfaceData();
215 synchronized (surfaceDataLock){
216 surfaceData = null;
217 }
218 if (oldData != null) {
219 oldData.invalidate();
220 }
221 if (isGrabbing()) {
222 ungrab();
223 }
224 destroyBuffers();
225 platformWindow.dispose();
226 super.disposeImpl();
227 }
228
229 @Override
230 protected void setVisibleImpl(final boolean visible) {
231 super.setVisibleImpl(visible);
232 // TODO: update graphicsConfig, see 4868278
233 platformWindow.setVisible(visible);
234 if (isSimpleWindow()) {
235 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
236
237 if (visible) {
238 if (!getTarget().isAutoRequestFocus()) {
239 return;
240 } else {
241 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
242 }
243 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
244 // Transfer focus to the owner.
245 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
246 if (owner != null) {
247 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
248 }
249 }
250 }
251 }
252
253 @Override
254 public GraphicsConfiguration getGraphicsConfiguration() {
255 return graphicsConfig;
256 }
257
258 @Override
259 public boolean updateGraphicsData(GraphicsConfiguration gc) {
260 setGraphicsConfig(gc);
261 return false;
262 }
263
264 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
265 if (getSurfaceData() == null) {
266 return null;
267 }
268 if (fg == null) {
269 fg = SystemColor.windowText;
270 }
271 if (bg == null) {
272 bg = SystemColor.window;
273 }
274 if (f == null) {
275 f = DEFAULT_FONT;
276 }
277 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
278 }
279
280 @Override
281 public void createBuffers(int numBuffers, BufferCapabilities caps)
282 throws AWTException
283 {
284 try {
285 // Assume this method is never called with numBuffers <= 1, as 0 is
286 // unsupported, and 1 corresponds to a SingleBufferStrategy which
287 // doesn't depend on the peer. Screen is considered as a separate
288 // "buffer", that's why numBuffers - 1
289 assert numBuffers > 1;
290
291 replaceSurfaceData(numBuffers - 1, caps, false);
292 } catch (InvalidPipeException z) {
293 throw new AWTException(z.toString());
294 }
295 }
296
297 @Override
298 public final Image getBackBuffer() {
299 synchronized (getStateLock()) {
300 return backBuffer;
301 }
302 }
303
304 @Override
305 public void flip(int x1, int y1, int x2, int y2,
306 BufferCapabilities.FlipContents flipAction)
307 {
308 final BufferedImage buffer = (BufferedImage)getBackBuffer();
309 if (buffer == null) {
310 throw new IllegalStateException("Buffers have not been created");
311 }
312 final Graphics g = getGraphics();
313 try {
314 g.drawImage(buffer, x1, y1, x2, y2, x1, y1, x2, y2, null);
315 } finally {
316 g.dispose();
317 }
318 if (flipAction == BufferCapabilities.FlipContents.BACKGROUND) {
319 final Graphics2D bg = (Graphics2D) buffer.getGraphics();
320 try {
321 bg.setBackground(getBackground());
322 bg.clearRect(0, 0, buffer.getWidth(), buffer.getHeight());
323 } finally {
324 bg.dispose();
325 }
326 }
327 }
328
329 @Override
330 public final void destroyBuffers() {
331 final Image oldBB = getBackBuffer();
332 synchronized (getStateLock()) {
333 backBuffer = null;
334 }
335 if (oldBB != null) {
336 oldBB.flush();
337 }
338 }
339
340 @Override
341 public void setBounds(int x, int y, int w, int h, int op) {
342 if ((op & SET_CLIENT_SIZE) != 0) {
343 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
344 // instead of pulling 'insets' field up to LWComponentPeer
345 // no need to add insets since Window's notion of width and height includes insets.
346 op &= ~SET_CLIENT_SIZE;
347 op |= SET_SIZE;
348 }
349
350 if (w < MINIMUM_WIDTH) {
351 w = MINIMUM_WIDTH;
352 }
353 if (h < MINIMUM_HEIGHT) {
354 h = MINIMUM_HEIGHT;
355 }
356
357 if (graphicsConfig instanceof TextureSizeConstraining) {
358 final int maxW = ((TextureSizeConstraining)graphicsConfig).getMaxTextureWidth();
359 final int maxH = ((TextureSizeConstraining)graphicsConfig).getMaxTextureHeight();
360
361 if (w > maxW) {
362 w = maxW;
363 }
364 if (h > maxH) {
365 h = maxH;
366 }
367 }
368
369 // Don't post ComponentMoved/Resized and Paint events
370 // until we've got a notification from the delegate
371 setBounds(x, y, w, h, op, false, false);
372 // Get updated bounds, so we don't have to handle 'op' here manually
373 Rectangle r = getBounds();
374 platformWindow.setBounds(r.x, r.y, r.width, r.height);
375 }
376
377 @Override
378 public Point getLocationOnScreen() {
379 return platformWindow.getLocationOnScreen();
380 }
381
382 /**
383 * Overridden from LWContainerPeer to return the correct insets.
384 * Insets are queried from the delegate and are kept up to date by
385 * requiering when needed (i.e. when the window geometry is changed).
386 */
387 @Override
388 public Insets getInsets() {
389 synchronized (getStateLock()) {
390 return insets;
391 }
392 }
393
394 @Override
395 public FontMetrics getFontMetrics(Font f) {
396 // TODO: check for "use platform metrics" settings
397 return platformWindow.getFontMetrics(f);
398 }
399
400 @Override
401 public void toFront() {
402 platformWindow.toFront();
403 }
404
405 @Override
406 public void toBack() {
407 platformWindow.toBack();
408 }
409
410 @Override
411 public void setZOrder(ComponentPeer above) {
412 throw new RuntimeException("not implemented");
413 }
414
415 @Override
416 public void setAlwaysOnTop(boolean value) {
417 platformWindow.setAlwaysOnTop(value);
418 }
419
420 @Override
421 public void updateFocusableWindowState() {
422 platformWindow.updateFocusableWindowState();
423 }
424
425 @Override
426 public void setModalBlocked(Dialog blocker, boolean blocked) {
427 synchronized (getPeerTreeLock()) {
428 if(blocked && blocker.getPeer() instanceof LWWindowPeer) {
429 this.blocker = (LWWindowPeer)blocker.getPeer();
430 } else {
431 this.blocker = null;
432 }
433 }
434
435 platformWindow.setModalBlocked(blocked);
436 }
437
438 @Override
439 public void updateMinimumSize() {
440 final Dimension min;
441 if (getTarget().isMinimumSizeSet()) {
442 min = getTarget().getMinimumSize();
443 min.width = Math.max(min.width, MINIMUM_WIDTH);
444 min.height = Math.max(min.height, MINIMUM_HEIGHT);
445 } else {
446 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
447 }
448
449 final int maxW, maxH;
450 if (graphicsConfig instanceof TextureSizeConstraining) {
451 maxW = ((TextureSizeConstraining)graphicsConfig).getMaxTextureWidth();
452 maxH = ((TextureSizeConstraining)graphicsConfig).getMaxTextureHeight();
453 } else {
454 maxW = maxH = Integer.MAX_VALUE;
455 }
456
457 final Dimension max;
458 if (getTarget().isMaximumSizeSet()) {
459 max = getTarget().getMaximumSize();
460 max.width = Math.min(max.width, maxW);
461 max.height = Math.min(max.height, maxH);
462 } else {
463 max = new Dimension(maxW, maxH);
464 }
465
466 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
467 }
468
469 @Override
470 public void updateIconImages() {
471 getPlatformWindow().updateIconImages();
472 }
473
474 @Override
475 public void setOpacity(float opacity) {
476 getPlatformWindow().setOpacity(opacity);
477 repaintPeer();
478 }
479
480 @Override
481 public final void setOpaque(final boolean isOpaque) {
482 if (this.isOpaque != isOpaque) {
483 this.isOpaque = isOpaque;
484 updateOpaque();
485 }
486 }
487
488 private void updateOpaque() {
489 getPlatformWindow().setOpaque(!isTranslucent());
490 replaceSurfaceData(false);
491 repaintPeer();
492 }
493
494 @Override
495 public void updateWindow() {
496 }
497
498 public final boolean isTextured() {
499 return textured;
500 }
501
502 public final void setTextured(final boolean isTextured) {
503 textured = isTextured;
504 }
505
506 public final boolean isTranslucent() {
507 synchronized (getStateLock()) {
508 /*
509 * Textured window is a special case of translucent window.
510 * The difference is only in nswindow background. So when we set
511 * texture property our peer became fully translucent. It doesn't
512 * fill background, create non opaque backbuffers and layer etc.
513 */
514 return !isOpaque || isShaped() || isTextured();
515 }
516 }
517
518 @Override
519 final void applyShapeImpl(final Region shape) {
520 super.applyShapeImpl(shape);
521 updateOpaque();
522 }
523
524 @Override
525 public void repositionSecurityWarning() {
526 throw new RuntimeException("not implemented");
527 }
528
529 // ---- FRAME PEER METHODS ---- //
530
531 @Override // FramePeer and DialogPeer
532 public void setTitle(String title) {
533 platformWindow.setTitle(title == null ? "" : title);
534 }
535
536 @Override
537 public void setMenuBar(MenuBar mb) {
538 platformWindow.setMenuBar(mb);
539 }
540
541 @Override // FramePeer and DialogPeer
542 public void setResizable(boolean resizable) {
543 platformWindow.setResizable(resizable);
544 }
545
546 @Override
547 public void setState(int state) {
548 platformWindow.setWindowState(state);
549 }
550
551 @Override
552 public int getState() {
553 return windowState;
554 }
555
556 @Override
557 public void setMaximizedBounds(Rectangle bounds) {
558 // TODO: not implemented
559 }
560
561 @Override
562 public void setBoundsPrivate(int x, int y, int width, int height) {
563 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
564 }
565
566 @Override
567 public Rectangle getBoundsPrivate() {
568 throw new RuntimeException("not implemented");
569 }
570
571 // ---- DIALOG PEER METHODS ---- //
572
573 @Override
574 public void blockWindows(List<Window> windows) {
575 //TODO: LWX will probably need some collectJavaToplevels to speed this up
576 for (Window w : windows) {
577 WindowPeer wp = (WindowPeer)w.getPeer();
578 if (wp != null) {
579 wp.setModalBlocked((Dialog)getTarget(), true);
580 }
581 }
582 }
583
584 // ---- PEER NOTIFICATIONS ---- //
585
586 public void notifyIconify(boolean iconify) {
587 //The toplevel target is Frame and states are applicable to it.
588 //Otherwise, the target is Window and it don't have state property.
589 //Hopefully, no such events are posted in the queue so consider the
590 //target as Frame in all cases.
591
592 // REMIND: should we send it anyway if the state not changed since last
593 // time?
594 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
595 iconify ? WindowEvent.WINDOW_ICONIFIED
596 : WindowEvent.WINDOW_DEICONIFIED);
597 postEvent(iconifyEvent);
598
599 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
600 postWindowStateChangedEvent(newWindowState);
601
602 // REMIND: RepaintManager doesn't repaint iconified windows and
603 // hence ignores any repaint request during deiconification.
604 // So, we need to repaint window explicitly when it becomes normal.
605 if (!iconify) {
606 repaintPeer();
607 }
608 }
609
610 public void notifyZoom(boolean isZoomed) {
611 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
612 postWindowStateChangedEvent(newWindowState);
613 }
614
615 /**
616 * Called by the delegate when any part of the window should be repainted.
617 */
618 public void notifyExpose(final int x, final int y, final int w, final int h) {
619 // TODO: there's a serious problem with Swing here: it handles
620 // the exposition internally, so SwingPaintEventDispatcher always
621 // return null from createPaintEvent(). However, we flush the
622 // back buffer here unconditionally, so some flickering may appear.
623 // A possible solution is to split postPaintEvent() into two parts,
624 // and override that part which is only called after if
625 // createPaintEvent() returned non-null value and flush the buffer
626 // from the overridden method
627 flushOnscreenGraphics();
628 repaintPeer(new Rectangle(x, y, w, h));
629 }
630
631 /**
632 * Called by the delegate when this window is moved/resized by user.
633 * There's no notifyReshape() in LWComponentPeer as the only
634 * components which could be resized by user are top-level windows.
635 */
636 public final void notifyReshape(int x, int y, int w, int h) {
637 boolean moved = false;
638 boolean resized = false;
639 synchronized (getStateLock()) {
640 moved = (x != sysX) || (y != sysY);
641 resized = (w != sysW) || (h != sysH);
642 sysX = x;
643 sysY = y;
644 sysW = w;
645 sysH = h;
646 }
647
648 // Check if anything changed
649 if (!moved && !resized) {
650 return;
651 }
652 // First, update peer's bounds
653 setBounds(x, y, w, h, SET_BOUNDS, false, false);
654
655 // Second, update the graphics config and surface data
656 checkIfOnNewScreen();
657 if (resized) {
658 replaceSurfaceData();
659 flushOnscreenGraphics();
660 }
661
662 // Third, COMPONENT_MOVED/COMPONENT_RESIZED events
663 if (moved) {
664 handleMove(x, y, true);
665 }
666 if (resized) {
667 handleResize(w, h,true);
668 }
669 }
670
671 private void clearBackground(final int w, final int h) {
672 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
673 getFont());
674 if (g != null) {
675 try {
676 if (g instanceof Graphics2D) {
677 ((Graphics2D) g).setComposite(AlphaComposite.Src);
678 }
679 if (isTranslucent()) {
680 g.setColor(nonOpaqueBackground);
681 g.fillRect(0, 0, w, h);
682 }
683 if (!isTextured()) {
684 if (g instanceof SunGraphics2D) {
685 SG2DConstraint((SunGraphics2D) g, getRegion());
686 }
687 g.setColor(getBackground());
688 g.fillRect(0, 0, w, h);
689 }
690 } finally {
691 g.dispose();
692 }
693 }
694 }
695
696 public void notifyUpdateCursor() {
697 getLWToolkit().getCursorManager().updateCursorLater(this);
698 }
699
700 public void notifyActivation(boolean activation) {
701 changeFocusedWindow(activation);
702 }
703
704 // MouseDown in non-client area
705 public void notifyNCMouseDown() {
706 // Ungrab except for a click on a Dialog with the grabbing owner
707 if (grabbingWindow != null &&
708 grabbingWindow != getOwnerFrameDialog(this))
709 {
710 grabbingWindow.ungrab();
711 }
712 }
713
714 // ---- EVENTS ---- //
715
716 /*
717 * Called by the delegate to dispatch the event to Java. Event
718 * coordinates are relative to non-client window are, i.e. the top-left
719 * point of the client area is (insets.top, insets.left).
720 */
721 public void dispatchMouseEvent(int id, long when, int button,
722 int x, int y, int screenX, int screenY,
723 int modifiers, int clickCount, boolean popupTrigger,
724 byte[] bdata)
725 {
726 // TODO: fill "bdata" member of AWTEvent
727 Rectangle r = getBounds();
728 // findPeerAt() expects parent coordinates
729 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
730 LWWindowPeer lastWindowPeer =
731 (lastMouseEventPeer != null) ? lastMouseEventPeer.getWindowPeerOrSelf() : null;
732 LWWindowPeer curWindowPeer =
733 (targetPeer != null) ? targetPeer.getWindowPeerOrSelf() : null;
734
735 if (id == MouseEvent.MOUSE_EXITED) {
736 // Sometimes we may get MOUSE_EXITED after lastMouseEventPeer is switched
737 // to a peer from another window. So we must first check if this peer is
738 // the same as lastWindowPeer
739 if (lastWindowPeer == this) {
740 if (isEnabled()) {
741 Point lp = lastMouseEventPeer.windowToLocal(x, y,
742 lastWindowPeer);
743 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
744 MouseEvent.MOUSE_EXITED, when,
745 modifiers, lp.x, lp.y, screenX,
746 screenY, clickCount, popupTrigger,
747 button));
748 }
749 lastMouseEventPeer = null;
750 }
751 } else {
752 if (targetPeer != lastMouseEventPeer) {
753 // lastMouseEventPeer may be null if mouse was out of Java windows
754 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
755 // Sometimes, MOUSE_EXITED is not sent by delegate (or is sent a bit
756 // later), in which case lastWindowPeer is another window
757 if (lastWindowPeer != this) {
758 Point oldp = lastMouseEventPeer.windowToLocal(x, y, lastWindowPeer);
759 // Additionally translate from this to lastWindowPeer coordinates
760 Rectangle lr = lastWindowPeer.getBounds();
761 oldp.x += r.x - lr.x;
762 oldp.y += r.y - lr.y;
763 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
764 MouseEvent.MOUSE_EXITED,
765 when, modifiers,
766 oldp.x, oldp.y, screenX, screenY,
767 clickCount, popupTrigger, button));
768 } else {
769 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
770 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
771 MouseEvent.MOUSE_EXITED,
772 when, modifiers,
773 oldp.x, oldp.y, screenX, screenY,
774 clickCount, popupTrigger, button));
775 }
776 }
777 lastMouseEventPeer = targetPeer;
778 if (targetPeer != null && targetPeer.isEnabled() && id != MouseEvent.MOUSE_ENTERED) {
779 Point newp = targetPeer.windowToLocal(x, y, curWindowPeer);
780 postEvent(new MouseEvent(targetPeer.getTarget(),
781 MouseEvent.MOUSE_ENTERED,
782 when, modifiers,
783 newp.x, newp.y, screenX, screenY,
784 clickCount, popupTrigger, button));
785 }
786 }
787 // TODO: fill "bdata" member of AWTEvent
788
789 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
790 int otherButtonsPressed = modifiers & ~eventButtonMask;
791
792 // For pressed/dragged/released events OS X treats other
793 // mouse buttons as if they were BUTTON2, so we do the same
794 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
795
796 // MOUSE_ENTERED/EXITED are generated for the components strictly under
797 // mouse even when dragging. That's why we first update lastMouseEventPeer
798 // based on initial targetPeer value and only then recalculate targetPeer
799 // for MOUSE_DRAGGED/RELEASED events
800 if (id == MouseEvent.MOUSE_PRESSED) {
801
802 // Ungrab only if this window is not an owned window of the grabbing one.
803 if (!isGrabbing() && grabbingWindow != null &&
804 grabbingWindow != getOwnerFrameDialog(this))
805 {
806 grabbingWindow.ungrab();
807 }
808 if (otherButtonsPressed == 0) {
809 mouseClickButtons = eventButtonMask;
810 } else {
811 mouseClickButtons |= eventButtonMask;
812 }
813
814 mouseDownTarget[targetIdx] = targetPeer;
815 } else if (id == MouseEvent.MOUSE_DRAGGED) {
816 // Cocoa dragged event has the information about which mouse
817 // button is being dragged. Use it to determine the peer that
818 // should receive the dragged event.
819 targetPeer = mouseDownTarget[targetIdx];
820 mouseClickButtons &= ~modifiers;
821 } else if (id == MouseEvent.MOUSE_RELEASED) {
822 // TODO: currently, mouse released event goes to the same component
823 // that received corresponding mouse pressed event. For most cases,
824 // it's OK, however, we need to make sure that our behavior is consistent
825 // with 1.6 for cases where component in question have been
826 // hidden/removed in between of mouse pressed/released events.
827 targetPeer = mouseDownTarget[targetIdx];
828
829 if ((modifiers & eventButtonMask) == 0) {
830 mouseDownTarget[targetIdx] = null;
831 }
832
833 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
834 }
835
836 // check if we receive mouseEvent from outside the window's bounds
837 // it can be either mouseDragged or mouseReleased
838 if (curWindowPeer == null) {
839 //TODO This can happen if this window is invisible. this is correct behavior in this case?
840 curWindowPeer = this;
841 }
842 if (targetPeer == null) {
843 //TODO This can happen if this window is invisible. this is correct behavior in this case?
844 targetPeer = this;
845 }
846
847
848 Point lp = targetPeer.windowToLocal(x, y, curWindowPeer);
849 if (targetPeer.isEnabled()) {
850 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
851 when, modifiers, lp.x, lp.y,
852 screenX, screenY, clickCount,
853 popupTrigger, button);
854 postEvent(event);
855 }
856
857 if (id == MouseEvent.MOUSE_RELEASED) {
858 if ((mouseClickButtons & eventButtonMask) != 0
859 && targetPeer.isEnabled()) {
860 postEvent(new MouseEvent(targetPeer.getTarget(),
861 MouseEvent.MOUSE_CLICKED,
862 when, modifiers,
863 lp.x, lp.y, screenX, screenY,
864 clickCount, popupTrigger, button));
865 }
866 mouseClickButtons &= ~eventButtonMask;
867 }
868 }
869 notifyUpdateCursor();
870 }
871
872 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
873 int scrollType, int scrollAmount,
874 int wheelRotation, double preciseWheelRotation,
875 byte[] bdata)
876 {
877 // TODO: could we just use the last mouse event target here?
878 Rectangle r = getBounds();
879 // findPeerAt() expects parent coordinates
880 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
881 if (targetPeer == null || !targetPeer.isEnabled()) {
882 return;
883 }
884
885 Point lp = targetPeer.windowToLocal(x, y, this);
886 // TODO: fill "bdata" member of AWTEvent
887 // TODO: screenX/screenY
888 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
889 MouseEvent.MOUSE_WHEEL,
890 when, modifiers,
891 lp.x, lp.y,
892 0, 0, /* screenX, Y */
893 0 /* clickCount */, false /* popupTrigger */,
894 scrollType, scrollAmount,
895 wheelRotation, preciseWheelRotation));
896 }
897
898 /*
899 * Called by the delegate when a key is pressed.
900 */
901 public void dispatchKeyEvent(int id, long when, int modifiers,
902 int keyCode, char keyChar, int keyLocation)
903 {
904 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
905 Component focusOwner = kfmPeer.getCurrentFocusOwner();
906
907 // Null focus owner may receive key event when
908 // application hides the focused window upon ESC press
909 // (AWT transfers/clears the focus owner) and pending ESC release
910 // may come to already hidden window. This check eliminates NPE.
911 if (focusOwner != null) {
912 KeyEvent event =
913 new KeyEvent(focusOwner, id, when, modifiers,
914 keyCode, keyChar, keyLocation);
915 LWComponentPeer peer = (LWComponentPeer)focusOwner.getPeer();
916 peer.postEvent(event);
917 }
918 }
919
920
921 // ---- UTILITY METHODS ---- //
922
923 private void postWindowStateChangedEvent(int newWindowState) {
924 if (getTarget() instanceof Frame) {
925 AWTAccessor.getFrameAccessor().setExtendedState(
926 (Frame)getTarget(), newWindowState);
927 }
928 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
929 WindowEvent.WINDOW_STATE_CHANGED,
930 windowState, newWindowState);
931 postEvent(stateChangedEvent);
932 windowState = newWindowState;
933 }
934
935 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
936 // TODO: this method can be implemented in a more
937 // efficient way by forwarding to the delegate
938 GraphicsDevice gd = gc.getDevice();
939 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
940 GraphicsDevice[] gds = ge.getScreenDevices();
941 for (int i = 0; i < gds.length; i++) {
942 if (gds[i] == gd) {
943 return i;
944 }
945 }
946 // Should never happen if gc is a screen device config
947 return 0;
948 }
949
950 /*
951 * This method is called when window's graphics config is changed from
952 * the app code (e.g. when the window is made non-opaque) or when
953 * the window is moved to another screen by user.
954 *
955 * Returns true if the graphics config has been changed, false otherwise.
956 */
957 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
958 synchronized (getStateLock()) {
959 if (graphicsConfig == gc) {
960 return false;
961 }
962 // If window's graphics config is changed from the app code, the
963 // config correspond to the same device as before; when the window
964 // is moved by user, graphicsDevice is updated in checkIfOnNewScreen().
965 // In either case, there's nothing to do with screenOn here
966 graphicsConfig = gc;
967 }
968 // SurfaceData is replaced later in updateGraphicsData()
969 return true;
970 }
971
972 private void checkIfOnNewScreen() {
973 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
974 synchronized (getStateLock()) {
975 if (graphicsDevice == newGraphicsDevice) {
976 return;
977 }
978 graphicsDevice = newGraphicsDevice;
979 }
980
981 // TODO: DisplayChangedListener stuff
982 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
983
984 if (!setGraphicsConfig(newGC)) return;
985
986 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
987 public void run() {
988 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
989 }
990 });
991 }
992
993 /*
994 * May be called by delegate to provide SD to Java2D code.
995 */
996 public SurfaceData getSurfaceData() {
997 synchronized (surfaceDataLock) {
998 return surfaceData;
999 }
1000 }
1001
1002 private void replaceSurfaceData() {
1003 replaceSurfaceData(true);
1004 }
1005
1006 private void replaceSurfaceData(boolean blit) {
1007 replaceSurfaceData(backBufferCount, backBufferCaps, blit);
1008 }
1009
1010 private void replaceSurfaceData(int newBackBufferCount,
1011 BufferCapabilities newBackBufferCaps,
1012 boolean blit) {
1013 synchronized (surfaceDataLock) {
1014 final SurfaceData oldData = getSurfaceData();
1015 surfaceData = platformWindow.replaceSurfaceData();
1016 // TODO: volatile image
1017 // VolatileImage oldBB = backBuffer;
1018 BufferedImage oldBB = backBuffer;
1019 backBufferCount = newBackBufferCount;
1020 backBufferCaps = newBackBufferCaps;
1021 final Rectangle size = getSize();
1022 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1023 clearBackground(size.width, size.height);
1024 }
1025
1026 if (blit) {
1027 blitSurfaceData(oldData, getSurfaceData());
1028 }
1029
1030 if (oldData != null && oldData != getSurfaceData()) {
1031 // TODO: drop oldData for D3D/WGL pipelines
1032 // This can only happen when this peer is being created
1033 oldData.flush();
1034 }
1035
1036 // TODO: volatile image
1037 // backBuffer = (VolatileImage)delegate.createBackBuffer();
1038 backBuffer = (BufferedImage) platformWindow.createBackBuffer();
1039 if (backBuffer != null) {
1040 Graphics g = backBuffer.getGraphics();
1041 try {
1042 Rectangle r = getBounds();
1043 if (g instanceof Graphics2D) {
1044 ((Graphics2D) g).setComposite(AlphaComposite.Src);
1045 }
1046 g.setColor(nonOpaqueBackground);
1047 g.fillRect(0, 0, r.width, r.height);
1048 if (g instanceof SunGraphics2D) {
1049 SG2DConstraint((SunGraphics2D) g, getRegion());
1050 }
1051 if (!isTextured()) {
1052 g.setColor(getBackground());
1053 g.fillRect(0, 0, r.width, r.height);
1054 }
1055 if (oldBB != null) {
1056 // Draw the old back buffer to the new one
1057 g.drawImage(oldBB, 0, 0, null);
1058 oldBB.flush();
1059 }
1060 } finally {
1061 g.dispose();
1062 }
1063 }
1064 }
1065 }
1066
1067 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1068 //TODO blit. proof-of-concept
1069 if (src != dst && src != null && dst != null
1070 && !(dst instanceof NullSurfaceData)
1071 && !(src instanceof NullSurfaceData)
1072 && src.getSurfaceType().equals(dst.getSurfaceType())) {
1073 final Rectangle size = getSize();
1074 final Blit blit = Blit.locate(src.getSurfaceType(),
1075 CompositeType.Src,
1076 dst.getSurfaceType());
1077 if (blit != null) {
1078 blit.Blit(src, dst, AlphaComposite.Src,
1079 getRegion(), 0, 0, 0, 0, size.width, size.height);
1080 }
1081 }
1082 }
1083
1084 public int getBackBufferCount() {
1085 return backBufferCount;
1086 }
1087
1088 public BufferCapabilities getBackBufferCaps() {
1089 return backBufferCaps;
1090 }
1091
1092 /*
1093 * Request the window insets from the delegate and compares it
1094 * with the current one. This method is mostly called by the
1095 * delegate, e.g. when the window state is changed and insets
1096 * should be recalculated.
1097 *
1098 * This method may be called on the toolkit thread.
1099 */
1100 public boolean updateInsets(Insets newInsets) {
1101 boolean changed = false;
1102 synchronized (getStateLock()) {
1103 changed = (insets.equals(newInsets));
1104 insets = newInsets;
1105 }
1106
1107 if (changed) {
1108 replaceSurfaceData();
1109 repaintPeer();
1110 }
1111
1112 return changed;
1113 }
1114
1115 public static LWWindowPeer getWindowUnderCursor() {
1116 return lastMouseEventPeer != null ? lastMouseEventPeer.getWindowPeerOrSelf() : null;
1117 }
1118
1119 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1120 return lastMouseEventPeer;
1121 }
1122
1123 /*
1124 * Requests platform to set native focus on a frame/dialog.
1125 * In case of a simple window, triggers appropriate java focus change.
1126 */
1127 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1128 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1129 focusLog.fine("requesting native focus to " + this);
1130 }
1131
1132 if (!focusAllowedFor()) {
1133 focusLog.fine("focus is not allowed");
1134 return false;
1135 }
1136
1137 if (platformWindow.rejectFocusRequest(cause)) {
1138 return false;
1139 }
1140
1141 Window currentActive = KeyboardFocusManager.
1142 getCurrentKeyboardFocusManager().getActiveWindow();
1143
1144 // Make the owner active window.
1145 if (isSimpleWindow()) {
1146 LWWindowPeer owner = getOwnerFrameDialog(this);
1147
1148 // If owner is not natively active, request native
1149 // activation on it w/o sending events up to java.
1150 if (owner != null && !owner.platformWindow.isActive()) {
1151 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1152 focusLog.fine("requesting native focus to the owner " + owner);
1153 }
1154 LWWindowPeer currentActivePeer = (currentActive != null ?
1155 (LWWindowPeer)currentActive.getPeer() : null);
1156
1157 // Ensure the opposite is natively active and suppress sending events.
1158 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1159 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1160 focusLog.fine("the opposite is " + currentActivePeer);
1161 }
1162 currentActivePeer.skipNextFocusChange = true;
1163 }
1164 owner.skipNextFocusChange = true;
1165
1166 owner.platformWindow.requestWindowFocus();
1167 }
1168
1169 // DKFM will synthesize all the focus/activation events correctly.
1170 changeFocusedWindow(true);
1171 return true;
1172
1173 // In case the toplevel is active but not focused, change focus directly,
1174 // as requesting native focus on it will not have effect.
1175 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1176
1177 changeFocusedWindow(true);
1178 return true;
1179 }
1180 return platformWindow.requestWindowFocus();
1181 }
1182
1183 private boolean focusAllowedFor() {
1184 Window window = getTarget();
1185 // TODO: check if modal blocked
1186 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1187 }
1188
1189 private boolean isFocusableWindow() {
1190 boolean focusable = getTarget().isFocusableWindow();
1191 if (isSimpleWindow()) {
1192 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1193 if (ownerPeer == null) {
1194 return false;
1195 }
1196 return focusable && ownerPeer.getTarget().isFocusableWindow();
1197 }
1198 return focusable;
1199 }
1200
1201 public boolean isSimpleWindow() {
1202 Window window = getTarget();
1203 return !(window instanceof Dialog || window instanceof Frame);
1204 }
1205
1206 /*
1207 * Changes focused window on java level.
1208 */
1209 private void changeFocusedWindow(boolean becomesFocused) {
1210 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1211 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1212 }
1213 if (skipNextFocusChange) {
1214 focusLog.fine("skipping focus change");
1215 skipNextFocusChange = false;
1216 return;
1217 }
1218 if (!isFocusableWindow() && becomesFocused) {
1219 focusLog.fine("the window is not focusable");
1220 return;
1221 }
1222 if (becomesFocused) {
1223 synchronized (getPeerTreeLock()) {
1224 if (blocker != null) {
1225 if (focusLog.isLoggable(PlatformLogger.FINEST)) {
1226 focusLog.finest("the window is blocked by " + blocker);
1227 }
1228 return;
1229 }
1230 }
1231 }
1232
1233 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1234 Window oppositeWindow = becomesFocused ? kfmPeer.getCurrentFocusedWindow() : null;
1235
1236 // Note, the method is not called:
1237 // - when the opposite (gaining focus) window is an owned/owner window.
1238 // - for a simple window in any case.
1239 if (!becomesFocused &&
1240 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1241 {
1242 focusLog.fine("ungrabbing on " + grabbingWindow);
1243 // ungrab a simple window if its owner looses activation.
1244 grabbingWindow.ungrab();
1245 }
1246
1247 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1248
1249 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1250 WindowEvent windowEvent = new WindowEvent(getTarget(), eventID, oppositeWindow);
1251
1252 // TODO: wrap in SequencedEvent
1253 postEvent(windowEvent);
1254 }
1255
1256 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1257 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1258 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1259 owner = owner.getOwner();
1260 }
1261 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1262 }
1263
1264 /**
1265 * Returns the foremost modal blocker of this window, or null.
1266 */
1267 public LWWindowPeer getBlocker() {
1268 synchronized (getPeerTreeLock()) {
1269 LWWindowPeer blocker = this.blocker;
1270 if (blocker == null) {
1271 return null;
1272 }
1273 while (blocker.blocker != null) {
1274 blocker = blocker.blocker;
1275 }
1276 return blocker;
1277 }
1278 }
1279
1280 public void enterFullScreenMode() {
1281 platformWindow.enterFullScreenMode();
1282 }
1283
1284 public void exitFullScreenMode() {
1285 platformWindow.exitFullScreenMode();
1286 }
1287
1288 public long getLayerPtr() {
1289 return getPlatformWindow().getLayerPtr();
1290 }
1291
1292 void grab() {
1293 if (grabbingWindow != null && !isGrabbing()) {
1294 grabbingWindow.ungrab();
1295 }
1296 grabbingWindow = this;
1297 }
1298
1299 void ungrab() {
1300 if (isGrabbing()) {
1301 grabbingWindow = null;
1302 postEvent(new UngrabEvent(getTarget()));
1303 }
1304 }
1305
1306 private boolean isGrabbing() {
1307 return this == grabbingWindow;
1308 }
1309
1310 @Override
1311 public String toString() {
1312 return super.toString() + " [target is " + getTarget() + "]";
1313 }
1314 }