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