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