1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.lwawt;
27
28 import java.awt.*;
29 import java.awt.event.*;
30 import java.awt.peer.*;
31 import java.util.List;
32
33 import javax.swing.*;
34
35 import sun.awt.*;
36 import sun.java2d.*;
37 import sun.java2d.loops.Blit;
38 import sun.java2d.loops.CompositeType;
39 import sun.java2d.pipe.Region;
40 import sun.util.logging.PlatformLogger;
41
42 public class LWWindowPeer
43 extends LWContainerPeer<Window, JComponent>
44 implements WindowPeer, FramePeer, DialogPeer, FullScreenCapable
45 {
46 public static enum PeerType {
47 SIMPLEWINDOW,
48 FRAME,
49 DIALOG,
50 EMBEDDED_FRAME,
51 VIEW_EMBEDDED_FRAME,
52 LW_FRAME
53 }
54
55 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
56
57 private final PlatformWindow platformWindow;
58
59 // Window bounds reported by the native system (as opposed to
60 // regular bounds inherited from LWComponentPeer which are
61 // requested by user and may haven't been applied yet because
62 // of asynchronous requests to the windowing system)
63 private int sysX;
64 private int sysY;
65 private int sysW;
66 private int sysH;
67
68 private static final int MINIMUM_WIDTH = 1;
69 private static final int MINIMUM_HEIGHT = 1;
70
71 private Insets insets = new Insets(0, 0, 0, 0);
72
73 private GraphicsDevice graphicsDevice;
74 private GraphicsConfiguration graphicsConfig;
75
76 private SurfaceData surfaceData;
77 private final Object surfaceDataLock = new Object();
78
79 private volatile int windowState = Frame.NORMAL;
80
81 // check that the mouse is over the window
82 private volatile boolean isMouseOver = false;
83
84 // A peer where the last mouse event came to. Used by cursor manager to
85 // find the component under cursor
86 private static volatile LWComponentPeer lastCommonMouseEventPeer = null;
87
88 // A peer where the last mouse event came to. Used to generate
89 // MOUSE_ENTERED/EXITED notifications
90 private volatile LWComponentPeer lastMouseEventPeer;
91
92 // Peers where all dragged/released events should come to,
93 // depending on what mouse button is being dragged according to Cocoa
94 private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3];
95
96 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
97 // on MOUSE_RELEASE. Click events are only generated if there were no drag
98 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
99 private static int mouseClickButtons = 0;
100
101 private volatile boolean isOpaque = true;
102
103 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
104
105 private static LWWindowPeer grabbingWindow;
106
107 private volatile boolean skipNextFocusChange;
108
109 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
110
111 private volatile boolean textured;
112
113 private final PeerType peerType;
114
115 /**
116 * Current modal blocker or null.
117 *
118 * Synchronization: peerTreeLock.
119 */
120 private LWWindowPeer blocker;
121
122 public LWWindowPeer(Window target, PlatformComponent platformComponent,
123 PlatformWindow platformWindow, PeerType peerType)
124 {
125 super(target, platformComponent);
126 this.platformWindow = platformWindow;
127 this.peerType = peerType;
128
129 Window owner = target.getOwner();
130 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null;
131 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
132
133 // The delegate.initialize() needs a non-null GC on X11.
134 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
135 synchronized (getStateLock()) {
136 // graphicsConfig should be updated according to the real window
137 // bounds when the window is shown, see 4868278
138 this.graphicsConfig = gc;
139 }
140
141 if (!target.isFontSet()) {
142 target.setFont(DEFAULT_FONT);
143 }
144
145 if (!target.isBackgroundSet()) {
146 target.setBackground(SystemColor.window);
147 } else {
148 // first we check if user provided alpha for background. This is
149 // similar to what Apple's Java do.
150 // Since JDK7 we should rely on setOpacity() only.
151 // this.opacity = c.getAlpha();
152 }
153
154 if (!target.isForegroundSet()) {
155 target.setForeground(SystemColor.windowText);
156 // we should not call setForeground because it will call a repaint
157 // which the peer may not be ready to do yet.
158 }
159
160 platformWindow.initialize(target, this, ownerDelegate);
161 }
162
163 @Override
164 void initializeImpl() {
165 super.initializeImpl();
166 if (getTarget() instanceof Frame) {
167 setTitle(((Frame) getTarget()).getTitle());
168 setState(((Frame) getTarget()).getExtendedState());
169 } else if (getTarget() instanceof Dialog) {
170 setTitle(((Dialog) getTarget()).getTitle());
171 }
172
173 setAlwaysOnTop(getTarget().isAlwaysOnTop());
174 updateMinimumSize();
175
176 final Shape shape = getTarget().getShape();
177 if (shape != null) {
178 applyShape(Region.getInstance(shape, null));
179 }
180
181 final float opacity = getTarget().getOpacity();
182 if (opacity < 1.0f) {
183 setOpacity(opacity);
184 }
185
186 setOpaque(getTarget().isOpaque());
187
188 updateInsets(platformWindow.getInsets());
189 if (getSurfaceData() == null) {
190 replaceSurfaceData(false);
191 }
192 }
193
194 // Just a helper method
195 public PlatformWindow getPlatformWindow() {
196 return platformWindow;
197 }
198
199 @Override
200 protected LWWindowPeer getWindowPeerOrSelf() {
201 return this;
202 }
203
204 @Override
205 protected void initializeContainerPeer() {
206 // No-op as LWWindowPeer doesn't have any containerPeer
207 }
208
209 // ---- PEER METHODS ---- //
210
211 @Override
212 protected void disposeImpl() {
213 SurfaceData oldData = getSurfaceData();
214 synchronized (surfaceDataLock){
215 surfaceData = null;
216 }
217 if (oldData != null) {
218 oldData.invalidate();
219 }
220 if (isGrabbing()) {
221 ungrab();
222 }
223 platformWindow.dispose();
224 super.disposeImpl();
225 }
226
227 @Override
228 protected void setVisibleImpl(final boolean visible) {
229 super.setVisibleImpl(visible);
230 // TODO: update graphicsConfig, see 4868278
231 platformWindow.setVisible(visible);
232 if (isSimpleWindow()) {
233 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
234
235 if (visible) {
236 if (!getTarget().isAutoRequestFocus()) {
237 return;
238 } else {
239 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
240 }
241 // Focus the owner in case this window is focused.
242 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
243 // Transfer focus to the owner.
244 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
245 if (owner != null) {
246 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
247 }
248 }
249 }
250 }
251
252 @Override
253 public final GraphicsConfiguration getGraphicsConfiguration() {
254 synchronized (getStateLock()) {
255 return graphicsConfig;
256 }
257 }
258
259 @Override
260 public boolean updateGraphicsData(GraphicsConfiguration gc) {
261 setGraphicsConfig(gc);
262 return false;
263 }
264
265 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
266 if (getSurfaceData() == null) {
267 return null;
268 }
269 if (fg == null) {
270 fg = SystemColor.windowText;
271 }
272 if (bg == null) {
273 bg = SystemColor.window;
274 }
275 if (f == null) {
276 f = DEFAULT_FONT;
277 }
278 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
279 }
280
281 @Override
282 public void setBounds(int x, int y, int w, int h, int op) {
283
284 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
285 return;
286 }
287
288 if ((op & SET_CLIENT_SIZE) != 0) {
289 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
290 // instead of pulling 'insets' field up to LWComponentPeer
291 // no need to add insets since Window's notion of width and height includes insets.
292 op &= ~SET_CLIENT_SIZE;
293 op |= SET_SIZE;
294 }
295
296 if (w < MINIMUM_WIDTH) {
297 w = MINIMUM_WIDTH;
298 }
299 if (h < MINIMUM_HEIGHT) {
300 h = MINIMUM_HEIGHT;
301 }
302
303 final int maxW = getLWGC().getMaxTextureWidth();
304 final int maxH = getLWGC().getMaxTextureHeight();
305
306 if (w > maxW) {
307 w = maxW;
308 }
309 if (h > maxH) {
310 h = maxH;
311 }
312
313 // Don't post ComponentMoved/Resized and Paint events
314 // until we've got a notification from the delegate
315 setBounds(x, y, w, h, op, false, false);
316 // Get updated bounds, so we don't have to handle 'op' here manually
317 Rectangle r = getBounds();
318 platformWindow.setBounds(r.x, r.y, r.width, r.height);
319 }
320
321 @Override
322 public Point getLocationOnScreen() {
323 return platformWindow.getLocationOnScreen();
324 }
325
326 /**
327 * Overridden from LWContainerPeer to return the correct insets.
328 * Insets are queried from the delegate and are kept up to date by
329 * requiering when needed (i.e. when the window geometry is changed).
330 */
331 @Override
332 public Insets getInsets() {
333 synchronized (getStateLock()) {
334 return insets;
335 }
336 }
337
338 @Override
339 public FontMetrics getFontMetrics(Font f) {
340 // TODO: check for "use platform metrics" settings
341 return platformWindow.getFontMetrics(f);
342 }
343
344 @Override
345 public void toFront() {
346 platformWindow.toFront();
347 }
348
349 @Override
350 public void toBack() {
351 platformWindow.toBack();
352 }
353
354 @Override
355 public void setZOrder(ComponentPeer above) {
356 throw new RuntimeException("not implemented");
357 }
358
359 @Override
360 public void setAlwaysOnTop(boolean value) {
361 platformWindow.setAlwaysOnTop(value);
362 }
363
364 @Override
365 public void updateFocusableWindowState() {
366 platformWindow.updateFocusableWindowState();
367 }
368
369 @Override
370 public void setModalBlocked(Dialog blocker, boolean blocked) {
371 synchronized (getPeerTreeLock()) {
372 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
373 }
374
375 platformWindow.setModalBlocked(blocked);
376 }
377
378 @Override
379 public void updateMinimumSize() {
380 final Dimension min;
381 if (getTarget().isMinimumSizeSet()) {
382 min = getTarget().getMinimumSize();
383 min.width = Math.max(min.width, MINIMUM_WIDTH);
384 min.height = Math.max(min.height, MINIMUM_HEIGHT);
385 } else {
386 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
387 }
388
389 final Dimension max;
390 if (getTarget().isMaximumSizeSet()) {
391 max = getTarget().getMaximumSize();
392 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
393 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
394 } else {
395 max = new Dimension(getLWGC().getMaxTextureWidth(),
396 getLWGC().getMaxTextureHeight());
397 }
398
399 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
400 }
401
402 @Override
403 public void updateIconImages() {
404 getPlatformWindow().updateIconImages();
405 }
406
407 @Override
408 public void setOpacity(float opacity) {
409 getPlatformWindow().setOpacity(opacity);
410 repaintPeer();
411 }
412
413 @Override
414 public final void setOpaque(final boolean isOpaque) {
415 if (this.isOpaque != isOpaque) {
416 this.isOpaque = isOpaque;
417 updateOpaque();
418 }
419 }
420
421 private void updateOpaque() {
422 getPlatformWindow().setOpaque(!isTranslucent());
423 replaceSurfaceData(false);
424 repaintPeer();
425 }
426
427 @Override
428 public void updateWindow() {
429 }
430
431 public final boolean isTextured() {
432 return textured;
433 }
434
435 public final void setTextured(final boolean isTextured) {
436 textured = isTextured;
437 }
438
439 public final boolean isTranslucent() {
440 synchronized (getStateLock()) {
441 /*
442 * Textured window is a special case of translucent window.
443 * The difference is only in nswindow background. So when we set
444 * texture property our peer became fully translucent. It doesn't
445 * fill background, create non opaque backbuffers and layer etc.
446 */
447 return !isOpaque || isShaped() || isTextured();
448 }
449 }
450
451 @Override
452 final void applyShapeImpl(final Region shape) {
453 super.applyShapeImpl(shape);
454 updateOpaque();
455 }
456
457 @Override
458 public void repositionSecurityWarning() {
459 throw new RuntimeException("not implemented");
460 }
461
462 // ---- FRAME PEER METHODS ---- //
463
464 @Override // FramePeer and DialogPeer
465 public void setTitle(String title) {
466 platformWindow.setTitle(title == null ? "" : title);
467 }
468
469 @Override
470 public void setMenuBar(MenuBar mb) {
471 platformWindow.setMenuBar(mb);
472 }
473
474 @Override // FramePeer and DialogPeer
475 public void setResizable(boolean resizable) {
476 platformWindow.setResizable(resizable);
477 }
478
479 @Override
480 public void setState(int state) {
481 platformWindow.setWindowState(state);
482 }
483
484 @Override
485 public int getState() {
486 return windowState;
487 }
488
489 @Override
490 public void setMaximizedBounds(Rectangle bounds) {
491 // TODO: not implemented
492 }
493
494 @Override
495 public void setBoundsPrivate(int x, int y, int width, int height) {
496 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
497 }
498
499 @Override
500 public Rectangle getBoundsPrivate() {
501 throw new RuntimeException("not implemented");
502 }
503
504 // ---- DIALOG PEER METHODS ---- //
505
506 @Override
507 public void blockWindows(List<Window> windows) {
508 //TODO: LWX will probably need some collectJavaToplevels to speed this up
509 for (Window w : windows) {
510 WindowPeer wp = (WindowPeer)w.getPeer();
511 if (wp != null) {
512 wp.setModalBlocked((Dialog)getTarget(), true);
513 }
514 }
515 }
516
517 // ---- PEER NOTIFICATIONS ---- //
518
519 public void notifyIconify(boolean iconify) {
520 //The toplevel target is Frame and states are applicable to it.
521 //Otherwise, the target is Window and it don't have state property.
522 //Hopefully, no such events are posted in the queue so consider the
523 //target as Frame in all cases.
524
525 // REMIND: should we send it anyway if the state not changed since last
526 // time?
527 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
528 iconify ? WindowEvent.WINDOW_ICONIFIED
529 : WindowEvent.WINDOW_DEICONIFIED);
530 postEvent(iconifyEvent);
531
532 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
533 postWindowStateChangedEvent(newWindowState);
534
535 // REMIND: RepaintManager doesn't repaint iconified windows and
536 // hence ignores any repaint request during deiconification.
537 // So, we need to repaint window explicitly when it becomes normal.
538 if (!iconify) {
539 repaintPeer();
540 }
541 }
542
543 public void notifyZoom(boolean isZoomed) {
544 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
545 postWindowStateChangedEvent(newWindowState);
546 }
547
548 /**
549 * Called by the {@code PlatformWindow} when any part of the window should
550 * be repainted.
551 */
552 public final void notifyExpose(final Rectangle r) {
553 repaintPeer(r);
554 }
555
556 /**
557 * Called by the {@code PlatformWindow} when this window is moved/resized by
558 * user or window insets are changed. There's no notifyReshape() in
559 * LWComponentPeer as the only components which could be resized by user are
560 * top-level windows.
561 */
562 public final void notifyReshape(int x, int y, int w, int h) {
563 final boolean moved;
564 final boolean resized;
565 final boolean invalid = updateInsets(platformWindow.getInsets());
566 synchronized (getStateLock()) {
567 moved = (x != sysX) || (y != sysY);
568 resized = (w != sysW) || (h != sysH);
569 sysX = x;
570 sysY = y;
571 sysW = w;
572 sysH = h;
573 }
574
575 // Check if anything changed
576 if (!moved && !resized && !invalid) {
577 return;
578 }
579 // First, update peer's bounds
580 setBounds(x, y, w, h, SET_BOUNDS, false, false);
581
582 // Second, update the graphics config and surface data
583 final boolean isNewDevice = updateGraphicsDevice();
584 if (resized || isNewDevice) {
585 replaceSurfaceData();
586 }
587
588 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
589 if (moved || invalid) {
590 handleMove(x, y, true);
591 }
592 if (resized || invalid || isNewDevice) {
593 handleResize(w, h, true);
594 repaintPeer();
595 }
596 }
597
598 private void clearBackground(final int w, final int h) {
599 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
600 getFont());
601 if (g != null) {
602 try {
603 if (g instanceof Graphics2D) {
604 ((Graphics2D) g).setComposite(AlphaComposite.Src);
605 }
606 if (isTranslucent()) {
607 g.setColor(nonOpaqueBackground);
608 g.fillRect(0, 0, w, h);
609 }
610 if (!isTextured()) {
611 if (g instanceof SunGraphics2D) {
612 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
613 }
614 g.setColor(getBackground());
615 g.fillRect(0, 0, w, h);
616 }
617 } finally {
618 g.dispose();
619 }
620 }
621 }
622
623 public void notifyUpdateCursor() {
624 getLWToolkit().getCursorManager().updateCursorLater(this);
625 }
626
627 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
628 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
629 changeFocusedWindow(activation, oppositeWindow);
630 }
631
632 // MouseDown in non-client area
633 public void notifyNCMouseDown() {
634 // Ungrab except for a click on a Dialog with the grabbing owner
635 if (grabbingWindow != null &&
636 grabbingWindow != getOwnerFrameDialog(this))
637 {
638 grabbingWindow.ungrab();
639 }
640 }
641
642 // ---- EVENTS ---- //
643
644 /*
645 * Called by the delegate to dispatch the event to Java. Event
646 * coordinates are relative to non-client window are, i.e. the top-left
647 * point of the client area is (insets.top, insets.left).
648 */
649 public void dispatchMouseEvent(int id, long when, int button,
650 int x, int y, int screenX, int screenY,
651 int modifiers, int clickCount, boolean popupTrigger,
652 byte[] bdata)
653 {
654 // TODO: fill "bdata" member of AWTEvent
655 Rectangle r = getBounds();
656 // findPeerAt() expects parent coordinates
657 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
658
659 if (id == MouseEvent.MOUSE_EXITED) {
660 isMouseOver = false;
661 if (lastMouseEventPeer != null) {
662 if (lastMouseEventPeer.isEnabled()) {
663 Point lp = lastMouseEventPeer.windowToLocal(x, y,
664 this);
665 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
666 MouseEvent.MOUSE_EXITED, when,
667 modifiers, lp.x, lp.y, screenX,
668 screenY, clickCount, popupTrigger,
669 button));
670 }
671
672 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
673 // to a peer from another window. So we must first check if this peer is
674 // the same as lastWindowPeer
675 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
676 lastCommonMouseEventPeer = null;
677 }
678 lastMouseEventPeer = null;
679 }
680 } else if(id == MouseEvent.MOUSE_ENTERED) {
681 isMouseOver = true;
682 if (targetPeer != null) {
683 if (targetPeer.isEnabled()) {
684 Point lp = targetPeer.windowToLocal(x, y, this);
685 postEvent(new MouseEvent(targetPeer.getTarget(),
686 MouseEvent.MOUSE_ENTERED, when,
687 modifiers, lp.x, lp.y, screenX,
688 screenY, clickCount, popupTrigger,
689 button));
690 }
691 lastCommonMouseEventPeer = targetPeer;
692 lastMouseEventPeer = targetPeer;
693 }
694 } else {
695 PlatformWindow topmostPlatforWindow =
696 platformWindow.getTopmostPlatformWindowUnderMouse();
697
698 LWWindowPeer topmostWindowPeer =
699 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
700
701 // topmostWindowPeer == null condition is added for the backward
702 // compatibility with applets. It can be removed when the
703 // getTopmostPlatformWindowUnderMouse() method will be properly
704 // implemented in CPlatformEmbeddedFrame class
705 if (topmostWindowPeer == this || topmostWindowPeer == null) {
706 generateMouseEnterExitEventsForComponents(when, button, x, y,
707 screenX, screenY, modifiers, clickCount, popupTrigger,
708 targetPeer);
709 } else {
710 LWComponentPeer topmostTargetPeer =
711 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
712 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
713 screenX, screenY, modifiers, clickCount, popupTrigger,
714 topmostTargetPeer);
715 }
716
717 // TODO: fill "bdata" member of AWTEvent
718
719 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
720 int otherButtonsPressed = modifiers & ~eventButtonMask;
721
722 // For pressed/dragged/released events OS X treats other
723 // mouse buttons as if they were BUTTON2, so we do the same
724 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
725
726 // MOUSE_ENTERED/EXITED are generated for the components strictly under
727 // mouse even when dragging. That's why we first update lastMouseEventPeer
728 // based on initial targetPeer value and only then recalculate targetPeer
729 // for MOUSE_DRAGGED/RELEASED events
730 if (id == MouseEvent.MOUSE_PRESSED) {
731
732 // Ungrab only if this window is not an owned window of the grabbing one.
733 if (!isGrabbing() && grabbingWindow != null &&
734 grabbingWindow != getOwnerFrameDialog(this))
735 {
736 grabbingWindow.ungrab();
737 }
738 if (otherButtonsPressed == 0) {
739 mouseClickButtons = eventButtonMask;
740 } else {
741 mouseClickButtons |= eventButtonMask;
742 }
743
744 // The window should be focused on mouse click. If it gets activated by the native platform,
745 // this request will be no op. It will take effect when:
746 // 1. A simple not focused window is clicked.
747 // 2. An active but not focused owner frame/dialog is clicked.
748 // The mouse event then will trigger a focus request "in window" to the component, so the window
749 // should gain focus before.
750 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
751
752 mouseDownTarget[targetIdx] = targetPeer;
753 } else if (id == MouseEvent.MOUSE_DRAGGED) {
754 // Cocoa dragged event has the information about which mouse
755 // button is being dragged. Use it to determine the peer that
756 // should receive the dragged event.
757 targetPeer = mouseDownTarget[targetIdx];
758 mouseClickButtons &= ~modifiers;
759 } else if (id == MouseEvent.MOUSE_RELEASED) {
760 // TODO: currently, mouse released event goes to the same component
761 // that received corresponding mouse pressed event. For most cases,
762 // it's OK, however, we need to make sure that our behavior is consistent
763 // with 1.6 for cases where component in question have been
764 // hidden/removed in between of mouse pressed/released events.
765 targetPeer = mouseDownTarget[targetIdx];
766
767 if ((modifiers & eventButtonMask) == 0) {
768 mouseDownTarget[targetIdx] = null;
769 }
770
771 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
772 }
773
774 if (targetPeer == null) {
775 //TODO This can happen if this window is invisible. this is correct behavior in this case?
776 targetPeer = this;
777 }
778
779
780 Point lp = targetPeer.windowToLocal(x, y, this);
781 if (targetPeer.isEnabled()) {
782 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
783 when, modifiers, lp.x, lp.y,
784 screenX, screenY, clickCount,
785 popupTrigger, button);
786 postEvent(event);
787 }
788
789 if (id == MouseEvent.MOUSE_RELEASED) {
790 if ((mouseClickButtons & eventButtonMask) != 0
791 && targetPeer.isEnabled()) {
792 postEvent(new MouseEvent(targetPeer.getTarget(),
793 MouseEvent.MOUSE_CLICKED,
794 when, modifiers,
795 lp.x, lp.y, screenX, screenY,
796 clickCount, popupTrigger, button));
797 }
798 mouseClickButtons &= ~eventButtonMask;
799 }
800 }
801 notifyUpdateCursor();
802 }
803
804 private void generateMouseEnterExitEventsForComponents(long when,
805 int button, int x, int y, int screenX, int screenY,
806 int modifiers, int clickCount, boolean popupTrigger,
807 LWComponentPeer targetPeer) {
808
809 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
810 return;
811 }
812
813 // Generate Mouse Exit for components
814 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
815 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
816 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
817 MouseEvent.MOUSE_EXITED,
818 when, modifiers,
819 oldp.x, oldp.y, screenX, screenY,
820 clickCount, popupTrigger, button));
821 }
822 lastCommonMouseEventPeer = targetPeer;
823 lastMouseEventPeer = targetPeer;
824
825 // Generate Mouse Enter for components
826 if (targetPeer != null && targetPeer.isEnabled()) {
827 Point newp = targetPeer.windowToLocal(x, y, this);
828 postEvent(new MouseEvent(targetPeer.getTarget(),
829 MouseEvent.MOUSE_ENTERED,
830 when, modifiers,
831 newp.x, newp.y, screenX, screenY,
832 clickCount, popupTrigger, button));
833 }
834 }
835
836 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
837 int scrollType, int scrollAmount,
838 int wheelRotation, double preciseWheelRotation,
839 byte[] bdata)
840 {
841 // TODO: could we just use the last mouse event target here?
842 Rectangle r = getBounds();
843 // findPeerAt() expects parent coordinates
844 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
845 if (targetPeer == null || !targetPeer.isEnabled()) {
846 return;
847 }
848
849 Point lp = targetPeer.windowToLocal(x, y, this);
850 // TODO: fill "bdata" member of AWTEvent
851 // TODO: screenX/screenY
852 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
853 MouseEvent.MOUSE_WHEEL,
854 when, modifiers,
855 lp.x, lp.y,
856 0, 0, /* screenX, Y */
857 0 /* clickCount */, false /* popupTrigger */,
858 scrollType, scrollAmount,
859 wheelRotation, preciseWheelRotation));
860 }
861
862 /*
863 * Called by the delegate when a key is pressed.
864 */
865 public void dispatchKeyEvent(int id, long when, int modifiers,
866 int keyCode, char keyChar, int keyLocation)
867 {
868 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
869 Component focusOwner = kfmPeer.getCurrentFocusOwner();
870
871 if (focusOwner == null) {
872 focusOwner = kfmPeer.getCurrentFocusedWindow();
873 if (focusOwner == null) {
874 focusOwner = this.getTarget();
875 }
876 }
877 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
878 }
879
880
881 // ---- UTILITY METHODS ---- //
882
883 private void postWindowStateChangedEvent(int newWindowState) {
884 if (getTarget() instanceof Frame) {
885 AWTAccessor.getFrameAccessor().setExtendedState(
886 (Frame)getTarget(), newWindowState);
887 }
888 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
889 WindowEvent.WINDOW_STATE_CHANGED,
890 windowState, newWindowState);
891 postEvent(stateChangedEvent);
892 windowState = newWindowState;
893 }
894
895 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
896 // TODO: this method can be implemented in a more
897 // efficient way by forwarding to the delegate
898 GraphicsDevice gd = gc.getDevice();
899 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
900 GraphicsDevice[] gds = ge.getScreenDevices();
901 for (int i = 0; i < gds.length; i++) {
902 if (gds[i] == gd) {
903 return i;
904 }
905 }
906 // Should never happen if gc is a screen device config
907 return 0;
908 }
909
910 /*
911 * This method is called when window's graphics config is changed from
912 * the app code (e.g. when the window is made non-opaque) or when
913 * the window is moved to another screen by user.
914 *
915 * Returns true if the graphics config has been changed, false otherwise.
916 */
917 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
918 synchronized (getStateLock()) {
919 if (graphicsConfig == gc) {
920 return false;
921 }
922 // If window's graphics config is changed from the app code, the
923 // config correspond to the same device as before; when the window
924 // is moved by user, graphicsDevice is updated in notifyReshape().
925 // In either case, there's nothing to do with screenOn here
926 graphicsConfig = gc;
927 }
928 // SurfaceData is replaced later in updateGraphicsData()
929 return true;
930 }
931
932 /**
933 * Returns true if the GraphicsDevice has been changed, false otherwise.
934 */
935 public boolean updateGraphicsDevice() {
936 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
937 synchronized (getStateLock()) {
938 if (graphicsDevice == newGraphicsDevice) {
939 return false;
940 }
941 graphicsDevice = newGraphicsDevice;
942 }
943
944 // TODO: DisplayChangedListener stuff
945 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
946
947 if (!setGraphicsConfig(newGC)) return false;
948
949 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
950 public void run() {
951 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
952 }
953 });
954 return true;
955 }
956
957 /*
958 * May be called by delegate to provide SD to Java2D code.
959 */
960 public SurfaceData getSurfaceData() {
961 synchronized (surfaceDataLock) {
962 return surfaceData;
963 }
964 }
965
966 private void replaceSurfaceData() {
967 replaceSurfaceData(true);
968 }
969
970 private void replaceSurfaceData(final boolean blit) {
971 synchronized (surfaceDataLock) {
972 final SurfaceData oldData = getSurfaceData();
973 surfaceData = platformWindow.replaceSurfaceData();
974 final Rectangle size = getSize();
975 if (getSurfaceData() != null && oldData != getSurfaceData()) {
976 clearBackground(size.width, size.height);
977 }
978
979 if (blit) {
980 blitSurfaceData(oldData, getSurfaceData());
981 }
982
983 if (oldData != null && oldData != getSurfaceData()) {
984 // TODO: drop oldData for D3D/WGL pipelines
985 // This can only happen when this peer is being created
986 oldData.flush();
987 }
988 }
989 flushOnscreenGraphics();
990 }
991
992 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
993 //TODO blit. proof-of-concept
994 if (src != dst && src != null && dst != null
995 && !(dst instanceof NullSurfaceData)
996 && !(src instanceof NullSurfaceData)
997 && src.getSurfaceType().equals(dst.getSurfaceType())
998 && src.getDefaultScale() == dst.getDefaultScale()) {
999 final Rectangle size = src.getBounds();
1000 final Blit blit = Blit.locate(src.getSurfaceType(),
1001 CompositeType.Src,
1002 dst.getSurfaceType());
1003 if (blit != null) {
1004 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1005 size.width, size.height);
1006 }
1007 }
1008 }
1009
1010 /**
1011 * Request the window insets from the delegate and compares it with the
1012 * current one. This method is mostly called by the delegate, e.g. when the
1013 * window state is changed and insets should be recalculated.
1014 * <p/>
1015 * This method may be called on the toolkit thread.
1016 */
1017 public final boolean updateInsets(final Insets newInsets) {
1018 synchronized (getStateLock()) {
1019 if (insets.equals(newInsets)) {
1020 return false;
1021 }
1022 insets = newInsets;
1023 }
1024 return true;
1025 }
1026
1027 public static LWWindowPeer getWindowUnderCursor() {
1028 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1029 }
1030
1031 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1032 return lastCommonMouseEventPeer;
1033 }
1034
1035 /*
1036 * Requests platform to set native focus on a frame/dialog.
1037 * In case of a simple window, triggers appropriate java focus change.
1038 */
1039 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1040 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1041 focusLog.fine("requesting native focus to " + this);
1042 }
1043
1044 if (!focusAllowedFor()) {
1045 focusLog.fine("focus is not allowed");
1046 return false;
1047 }
1048
1049 if (platformWindow.rejectFocusRequest(cause)) {
1050 return false;
1051 }
1052
1053 Window currentActive = KeyboardFocusManager.
1054 getCurrentKeyboardFocusManager().getActiveWindow();
1055
1056 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1057 getCurrentFocusedWindow();
1058
1059 // Make the owner active window.
1060 if (isSimpleWindow()) {
1061 LWWindowPeer owner = getOwnerFrameDialog(this);
1062
1063 // If owner is not natively active, request native
1064 // activation on it w/o sending events up to java.
1065 if (owner != null && !owner.platformWindow.isActive()) {
1066 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1067 focusLog.fine("requesting native focus to the owner " + owner);
1068 }
1069 LWWindowPeer currentActivePeer = (currentActive != null ?
1070 (LWWindowPeer)currentActive.getPeer() : null);
1071
1072 // Ensure the opposite is natively active and suppress sending events.
1073 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1074 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1075 focusLog.fine("the opposite is " + currentActivePeer);
1076 }
1077 currentActivePeer.skipNextFocusChange = true;
1078 }
1079 owner.skipNextFocusChange = true;
1080
1081 owner.platformWindow.requestWindowFocus();
1082 }
1083
1084 // DKFM will synthesize all the focus/activation events correctly.
1085 changeFocusedWindow(true, opposite);
1086 return true;
1087
1088 // In case the toplevel is active but not focused, change focus directly,
1089 // as requesting native focus on it will not have effect.
1090 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1091
1092 changeFocusedWindow(true, opposite);
1093 return true;
1094 }
1095
1096 return platformWindow.requestWindowFocus();
1097 }
1098
1099 protected boolean focusAllowedFor() {
1100 Window window = getTarget();
1101 // TODO: check if modal blocked
1102 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1103 }
1104
1105 private boolean isFocusableWindow() {
1106 boolean focusable = getTarget().isFocusableWindow();
1107 if (isSimpleWindow()) {
1108 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1109 if (ownerPeer == null) {
1110 return false;
1111 }
1112 return focusable && ownerPeer.getTarget().isFocusableWindow();
1113 }
1114 return focusable;
1115 }
1116
1117 public boolean isSimpleWindow() {
1118 Window window = getTarget();
1119 return !(window instanceof Dialog || window instanceof Frame);
1120 }
1121
1122 @Override
1123 public void emulateActivation(boolean activate) {
1124 changeFocusedWindow(activate, null);
1125 }
1126
1127 /*
1128 * Changes focused window on java level.
1129 */
1130 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1131 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1132 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1133 }
1134 if (skipNextFocusChange) {
1135 focusLog.fine("skipping focus change");
1136 skipNextFocusChange = false;
1137 return;
1138 }
1139 if (!isFocusableWindow() && becomesFocused) {
1140 focusLog.fine("the window is not focusable");
1141 return;
1142 }
1143 if (becomesFocused) {
1144 synchronized (getPeerTreeLock()) {
1145 if (blocker != null) {
1146 if (focusLog.isLoggable(PlatformLogger.FINEST)) {
1147 focusLog.finest("the window is blocked by " + blocker);
1148 }
1149 return;
1150 }
1151 }
1152 }
1153
1154 // Note, the method is not called:
1155 // - when the opposite (gaining focus) window is an owned/owner window.
1156 // - for a simple window in any case.
1157 if (!becomesFocused &&
1158 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1159 {
1160 focusLog.fine("ungrabbing on " + grabbingWindow);
1161 // ungrab a simple window if its owner looses activation.
1162 grabbingWindow.ungrab();
1163 }
1164
1165 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1166 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1167
1168 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1169 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1170
1171 // TODO: wrap in SequencedEvent
1172 postEvent(windowEvent);
1173 }
1174
1175 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1176 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1177 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1178 owner = owner.getOwner();
1179 }
1180 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1181 }
1182
1183 /**
1184 * Returns the foremost modal blocker of this window, or null.
1185 */
1186 public LWWindowPeer getBlocker() {
1187 synchronized (getPeerTreeLock()) {
1188 LWWindowPeer blocker = this.blocker;
1189 if (blocker == null) {
1190 return null;
1191 }
1192 while (blocker.blocker != null) {
1193 blocker = blocker.blocker;
1194 }
1195 return blocker;
1196 }
1197 }
1198
1199 public void enterFullScreenMode() {
1200 platformWindow.enterFullScreenMode();
1201 }
1202
1203 public void exitFullScreenMode() {
1204 platformWindow.exitFullScreenMode();
1205 }
1206
1207 public long getLayerPtr() {
1208 return getPlatformWindow().getLayerPtr();
1209 }
1210
1211 void grab() {
1212 if (grabbingWindow != null && !isGrabbing()) {
1213 grabbingWindow.ungrab();
1214 }
1215 grabbingWindow = this;
1216 }
1217
1218 final void ungrab(boolean doPost) {
1219 if (isGrabbing()) {
1220 grabbingWindow = null;
1221 if (doPost) {
1222 postEvent(new UngrabEvent(getTarget()));
1223 }
1224 }
1225 }
1226
1227 void ungrab() {
1228 ungrab(true);
1229 }
1230
1231 private boolean isGrabbing() {
1232 return this == grabbingWindow;
1233 }
1234
1235 public PeerType getPeerType() {
1236 return peerType;
1237 }
1238
1239 @Override
1240 public String toString() {
1241 return super.toString() + " [target is " + getTarget() + "]";
1242 }
1243 }