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 // ---- PEER METHODS ---- //
205
206 @Override
207 protected void disposeImpl() {
208 SurfaceData oldData = getSurfaceData();
209 synchronized (surfaceDataLock){
210 surfaceData = null;
211 }
212 if (oldData != null) {
213 oldData.invalidate();
214 }
215 if (isGrabbing()) {
216 ungrab();
217 }
218 platformWindow.dispose();
219 super.disposeImpl();
220 }
221
222 @Override
223 protected void setVisibleImpl(final boolean visible) {
224 super.setVisibleImpl(visible);
225 // TODO: update graphicsConfig, see 4868278
226 platformWindow.setVisible(visible);
227 if (isSimpleWindow()) {
228 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
229
230 if (visible) {
231 if (!getTarget().isAutoRequestFocus()) {
232 return;
233 } else {
234 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
235 }
236 // Focus the owner in case this window is focused.
237 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
238 // Transfer focus to the owner.
239 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
240 if (owner != null) {
241 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
242 }
243 }
244 }
245 }
246
247 @Override
248 public final GraphicsConfiguration getGraphicsConfiguration() {
249 synchronized (getStateLock()) {
250 return graphicsConfig;
251 }
252 }
253
254 @Override
255 public boolean updateGraphicsData(GraphicsConfiguration gc) {
256 setGraphicsConfig(gc);
257 return false;
258 }
259
260 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
261 if (getSurfaceData() == null) {
262 return null;
263 }
264 if (fg == null) {
265 fg = SystemColor.windowText;
266 }
267 if (bg == null) {
268 bg = SystemColor.window;
269 }
270 if (f == null) {
271 f = DEFAULT_FONT;
272 }
273 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
274 }
275
276 @Override
277 public void setBounds(int x, int y, int w, int h, int op) {
278
279 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
280 return;
281 }
282
283 if ((op & SET_CLIENT_SIZE) != 0) {
284 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
285 // instead of pulling 'insets' field up to LWComponentPeer
286 // no need to add insets since Window's notion of width and height includes insets.
287 op &= ~SET_CLIENT_SIZE;
288 op |= SET_SIZE;
289 }
290
291 if (w < MINIMUM_WIDTH) {
292 w = MINIMUM_WIDTH;
293 }
294 if (h < MINIMUM_HEIGHT) {
295 h = MINIMUM_HEIGHT;
296 }
297
298 final int maxW = getLWGC().getMaxTextureWidth();
299 final int maxH = getLWGC().getMaxTextureHeight();
300
301 if (w > maxW) {
302 w = maxW;
303 }
304 if (h > maxH) {
305 h = maxH;
306 }
307
308 // Don't post ComponentMoved/Resized and Paint events
309 // until we've got a notification from the delegate
310 setBounds(x, y, w, h, op, false, false);
311 // Get updated bounds, so we don't have to handle 'op' here manually
312 Rectangle r = getBounds();
313 platformWindow.setBounds(r.x, r.y, r.width, r.height);
314 }
315
316 @Override
317 public Point getLocationOnScreen() {
318 return platformWindow.getLocationOnScreen();
319 }
320
321 /**
322 * Overridden from LWContainerPeer to return the correct insets.
323 * Insets are queried from the delegate and are kept up to date by
324 * requiering when needed (i.e. when the window geometry is changed).
325 */
326 @Override
327 public Insets getInsets() {
328 synchronized (getStateLock()) {
329 return insets;
330 }
331 }
332
333 @Override
334 public FontMetrics getFontMetrics(Font f) {
335 // TODO: check for "use platform metrics" settings
336 return platformWindow.getFontMetrics(f);
337 }
338
339 @Override
340 public void toFront() {
341 platformWindow.toFront();
342 }
343
344 @Override
345 public void toBack() {
346 platformWindow.toBack();
347 }
348
349 @Override
350 public void setZOrder(ComponentPeer above) {
351 throw new RuntimeException("not implemented");
352 }
353
354 @Override
355 public void setAlwaysOnTop(boolean value) {
356 platformWindow.setAlwaysOnTop(value);
357 }
358
359 @Override
360 public void updateFocusableWindowState() {
361 platformWindow.updateFocusableWindowState();
362 }
363
364 @Override
365 public void setModalBlocked(Dialog blocker, boolean blocked) {
366 synchronized (getPeerTreeLock()) {
367 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
368 }
369
370 platformWindow.setModalBlocked(blocked);
371 }
372
373 @Override
374 public void updateMinimumSize() {
375 final Dimension min;
376 if (getTarget().isMinimumSizeSet()) {
377 min = getTarget().getMinimumSize();
378 min.width = Math.max(min.width, MINIMUM_WIDTH);
379 min.height = Math.max(min.height, MINIMUM_HEIGHT);
380 } else {
381 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
382 }
383
384 final Dimension max;
385 if (getTarget().isMaximumSizeSet()) {
386 max = getTarget().getMaximumSize();
387 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
388 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
389 } else {
390 max = new Dimension(getLWGC().getMaxTextureWidth(),
391 getLWGC().getMaxTextureHeight());
392 }
393
394 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
395 }
396
397 @Override
398 public void updateIconImages() {
399 getPlatformWindow().updateIconImages();
400 }
401
402 @Override
403 public void setOpacity(float opacity) {
404 getPlatformWindow().setOpacity(opacity);
405 repaintPeer();
406 }
407
408 @Override
409 public final void setOpaque(final boolean isOpaque) {
410 if (this.isOpaque != isOpaque) {
411 this.isOpaque = isOpaque;
412 updateOpaque();
413 }
414 }
415
416 private void updateOpaque() {
417 getPlatformWindow().setOpaque(!isTranslucent());
418 replaceSurfaceData(false);
419 repaintPeer();
420 }
421
422 @Override
423 public void updateWindow() {
424 }
425
426 public final boolean isTextured() {
427 return textured;
428 }
429
430 public final void setTextured(final boolean isTextured) {
431 textured = isTextured;
432 }
433
434 public final boolean isTranslucent() {
435 synchronized (getStateLock()) {
436 /*
437 * Textured window is a special case of translucent window.
438 * The difference is only in nswindow background. So when we set
439 * texture property our peer became fully translucent. It doesn't
440 * fill background, create non opaque backbuffers and layer etc.
441 */
442 return !isOpaque || isShaped() || isTextured();
443 }
444 }
445
446 @Override
447 final void applyShapeImpl(final Region shape) {
448 super.applyShapeImpl(shape);
449 updateOpaque();
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 {@code PlatformWindow} when any part of the window should
545 * be repainted.
546 */
547 public final void notifyExpose(final Rectangle r) {
548 repaintPeer(r);
549 }
550
551 /**
552 * Called by the {@code PlatformWindow} when this window is moved/resized by
553 * user or window insets are changed. There's no notifyReshape() in
554 * LWComponentPeer as the only components which could be resized by user are
555 * top-level windows.
556 */
557 public final void notifyReshape(int x, int y, int w, int h) {
558 final boolean moved;
559 final boolean resized;
560 final boolean invalid = updateInsets(platformWindow.getInsets());
561 synchronized (getStateLock()) {
562 moved = (x != sysX) || (y != sysY);
563 resized = (w != sysW) || (h != sysH);
564 sysX = x;
565 sysY = y;
566 sysW = w;
567 sysH = h;
568 }
569
570 // Check if anything changed
571 if (!moved && !resized && !invalid) {
572 return;
573 }
574 // First, update peer's bounds
575 setBounds(x, y, w, h, SET_BOUNDS, false, false);
576
577 // Second, update the graphics config and surface data
578 final boolean isNewDevice = updateGraphicsDevice();
579 if (resized || isNewDevice) {
580 replaceSurfaceData();
581 }
582
583 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
584 if (moved || invalid) {
585 handleMove(x, y, true);
586 }
587 if (resized || invalid || isNewDevice) {
588 handleResize(w, h, true);
589 repaintPeer();
590 }
591 }
592
593 private void clearBackground(final int w, final int h) {
594 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
595 getFont());
596 if (g != null) {
597 try {
598 if (g instanceof Graphics2D) {
599 ((Graphics2D) g).setComposite(AlphaComposite.Src);
600 }
601 if (isTranslucent()) {
602 g.setColor(nonOpaqueBackground);
603 g.fillRect(0, 0, w, h);
604 }
605 if (!isTextured()) {
606 if (g instanceof SunGraphics2D) {
607 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
608 }
609 g.setColor(getBackground());
610 g.fillRect(0, 0, w, h);
611 }
612 } finally {
613 g.dispose();
614 }
615 }
616 }
617
618 public void notifyUpdateCursor() {
619 getLWToolkit().getCursorManager().updateCursorLater(this);
620 }
621
622 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
623 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
624 changeFocusedWindow(activation, oppositeWindow);
625 }
626
627 // MouseDown in non-client area
628 public void notifyNCMouseDown() {
629 // Ungrab except for a click on a Dialog with the grabbing owner
630 if (grabbingWindow != null &&
631 grabbingWindow != getOwnerFrameDialog(this))
632 {
633 grabbingWindow.ungrab();
634 }
635 }
636
637 // ---- EVENTS ---- //
638
639 /*
640 * Called by the delegate to dispatch the event to Java. Event
641 * coordinates are relative to non-client window are, i.e. the top-left
642 * point of the client area is (insets.top, insets.left).
643 */
644 public void dispatchMouseEvent(int id, long when, int button,
645 int x, int y, int screenX, int screenY,
646 int modifiers, int clickCount, boolean popupTrigger,
647 byte[] bdata)
648 {
649 // TODO: fill "bdata" member of AWTEvent
650 Rectangle r = getBounds();
651 // findPeerAt() expects parent coordinates
652 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
653
654 if (id == MouseEvent.MOUSE_EXITED) {
655 isMouseOver = false;
656 if (lastMouseEventPeer != null) {
657 if (lastMouseEventPeer.isEnabled()) {
658 Point lp = lastMouseEventPeer.windowToLocal(x, y,
659 this);
660 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
661 MouseEvent.MOUSE_EXITED, when,
662 modifiers, lp.x, lp.y, screenX,
663 screenY, clickCount, popupTrigger,
664 button));
665 }
666
667 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
668 // to a peer from another window. So we must first check if this peer is
669 // the same as lastWindowPeer
670 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
671 lastCommonMouseEventPeer = null;
672 }
673 lastMouseEventPeer = null;
674 }
675 } else if(id == MouseEvent.MOUSE_ENTERED) {
676 isMouseOver = true;
677 if (targetPeer != null) {
678 if (targetPeer.isEnabled()) {
679 Point lp = targetPeer.windowToLocal(x, y, this);
680 postEvent(new MouseEvent(targetPeer.getTarget(),
681 MouseEvent.MOUSE_ENTERED, when,
682 modifiers, lp.x, lp.y, screenX,
683 screenY, clickCount, popupTrigger,
684 button));
685 }
686 lastCommonMouseEventPeer = targetPeer;
687 lastMouseEventPeer = targetPeer;
688 }
689 } else {
690 PlatformWindow topmostPlatforWindow =
691 platformWindow.getTopmostPlatformWindowUnderMouse();
692
693 LWWindowPeer topmostWindowPeer =
694 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
695
696 // topmostWindowPeer == null condition is added for the backward
697 // compatibility with applets. It can be removed when the
698 // getTopmostPlatformWindowUnderMouse() method will be properly
699 // implemented in CPlatformEmbeddedFrame class
700 if (topmostWindowPeer == this || topmostWindowPeer == null) {
701 generateMouseEnterExitEventsForComponents(when, button, x, y,
702 screenX, screenY, modifiers, clickCount, popupTrigger,
703 targetPeer);
704 } else {
705 LWComponentPeer topmostTargetPeer =
706 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
707 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
708 screenX, screenY, modifiers, clickCount, popupTrigger,
709 topmostTargetPeer);
710 }
711
712 // TODO: fill "bdata" member of AWTEvent
713
714 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
715 int otherButtonsPressed = modifiers & ~eventButtonMask;
716
717 // For pressed/dragged/released events OS X treats other
718 // mouse buttons as if they were BUTTON2, so we do the same
719 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
720
721 // MOUSE_ENTERED/EXITED are generated for the components strictly under
722 // mouse even when dragging. That's why we first update lastMouseEventPeer
723 // based on initial targetPeer value and only then recalculate targetPeer
724 // for MOUSE_DRAGGED/RELEASED events
725 if (id == MouseEvent.MOUSE_PRESSED) {
726
727 // Ungrab only if this window is not an owned window of the grabbing one.
728 if (!isGrabbing() && grabbingWindow != null &&
729 grabbingWindow != getOwnerFrameDialog(this))
730 {
731 grabbingWindow.ungrab();
732 }
733 if (otherButtonsPressed == 0) {
734 mouseClickButtons = eventButtonMask;
735 } else {
736 mouseClickButtons |= eventButtonMask;
737 }
738
739 // The window should be focused on mouse click. If it gets activated by the native platform,
740 // this request will be no op. It will take effect when:
741 // 1. A simple not focused window is clicked.
742 // 2. An active but not focused owner frame/dialog is clicked.
743 // The mouse event then will trigger a focus request "in window" to the component, so the window
744 // should gain focus before.
745 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
746
747 mouseDownTarget[targetIdx] = targetPeer;
748 } else if (id == MouseEvent.MOUSE_DRAGGED) {
749 // Cocoa dragged event has the information about which mouse
750 // button is being dragged. Use it to determine the peer that
751 // should receive the dragged event.
752 targetPeer = mouseDownTarget[targetIdx];
753 mouseClickButtons &= ~modifiers;
754 } else if (id == MouseEvent.MOUSE_RELEASED) {
755 // TODO: currently, mouse released event goes to the same component
756 // that received corresponding mouse pressed event. For most cases,
757 // it's OK, however, we need to make sure that our behavior is consistent
758 // with 1.6 for cases where component in question have been
759 // hidden/removed in between of mouse pressed/released events.
760 targetPeer = mouseDownTarget[targetIdx];
761
762 if ((modifiers & eventButtonMask) == 0) {
763 mouseDownTarget[targetIdx] = null;
764 }
765
766 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
767 }
768
769 if (targetPeer == null) {
770 //TODO This can happen if this window is invisible. this is correct behavior in this case?
771 targetPeer = this;
772 }
773
774
775 Point lp = targetPeer.windowToLocal(x, y, this);
776 if (targetPeer.isEnabled()) {
777 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
778 when, modifiers, lp.x, lp.y,
779 screenX, screenY, clickCount,
780 popupTrigger, button);
781 postEvent(event);
782 }
783
784 if (id == MouseEvent.MOUSE_RELEASED) {
785 if ((mouseClickButtons & eventButtonMask) != 0
786 && targetPeer.isEnabled()) {
787 postEvent(new MouseEvent(targetPeer.getTarget(),
788 MouseEvent.MOUSE_CLICKED,
789 when, modifiers,
790 lp.x, lp.y, screenX, screenY,
791 clickCount, popupTrigger, button));
792 }
793 mouseClickButtons &= ~eventButtonMask;
794 }
795 }
796 notifyUpdateCursor();
797 }
798
799 private void generateMouseEnterExitEventsForComponents(long when,
800 int button, int x, int y, int screenX, int screenY,
801 int modifiers, int clickCount, boolean popupTrigger,
802 LWComponentPeer targetPeer) {
803
804 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
805 return;
806 }
807
808 // Generate Mouse Exit for components
809 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
810 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
811 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
812 MouseEvent.MOUSE_EXITED,
813 when, modifiers,
814 oldp.x, oldp.y, screenX, screenY,
815 clickCount, popupTrigger, button));
816 }
817 lastCommonMouseEventPeer = targetPeer;
818 lastMouseEventPeer = targetPeer;
819
820 // Generate Mouse Enter for components
821 if (targetPeer != null && targetPeer.isEnabled()) {
822 Point newp = targetPeer.windowToLocal(x, y, this);
823 postEvent(new MouseEvent(targetPeer.getTarget(),
824 MouseEvent.MOUSE_ENTERED,
825 when, modifiers,
826 newp.x, newp.y, screenX, screenY,
827 clickCount, popupTrigger, button));
828 }
829 }
830
831 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
832 int scrollType, int scrollAmount,
833 int wheelRotation, double preciseWheelRotation,
834 byte[] bdata)
835 {
836 // TODO: could we just use the last mouse event target here?
837 Rectangle r = getBounds();
838 // findPeerAt() expects parent coordinates
839 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
840 if (targetPeer == null || !targetPeer.isEnabled()) {
841 return;
842 }
843
844 Point lp = targetPeer.windowToLocal(x, y, this);
845 // TODO: fill "bdata" member of AWTEvent
846 // TODO: screenX/screenY
847 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
848 MouseEvent.MOUSE_WHEEL,
849 when, modifiers,
850 lp.x, lp.y,
851 0, 0, /* screenX, Y */
852 0 /* clickCount */, false /* popupTrigger */,
853 scrollType, scrollAmount,
854 wheelRotation, preciseWheelRotation));
855 }
856
857 /*
858 * Called by the delegate when a key is pressed.
859 */
860 public void dispatchKeyEvent(int id, long when, int modifiers,
861 int keyCode, char keyChar, int keyLocation)
862 {
863 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
864 Component focusOwner = kfmPeer.getCurrentFocusOwner();
865
866 if (focusOwner == null) {
867 focusOwner = kfmPeer.getCurrentFocusedWindow();
868 if (focusOwner == null) {
869 focusOwner = this.getTarget();
870 }
871 }
872 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
873 }
874
875
876 // ---- UTILITY METHODS ---- //
877
878 private void postWindowStateChangedEvent(int newWindowState) {
879 if (getTarget() instanceof Frame) {
880 AWTAccessor.getFrameAccessor().setExtendedState(
881 (Frame)getTarget(), newWindowState);
882 }
883 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
884 WindowEvent.WINDOW_STATE_CHANGED,
885 windowState, newWindowState);
886 postEvent(stateChangedEvent);
887 windowState = newWindowState;
888 }
889
890 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
891 // TODO: this method can be implemented in a more
892 // efficient way by forwarding to the delegate
893 GraphicsDevice gd = gc.getDevice();
894 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
895 GraphicsDevice[] gds = ge.getScreenDevices();
896 for (int i = 0; i < gds.length; i++) {
897 if (gds[i] == gd) {
898 return i;
899 }
900 }
901 // Should never happen if gc is a screen device config
902 return 0;
903 }
904
905 /*
906 * This method is called when window's graphics config is changed from
907 * the app code (e.g. when the window is made non-opaque) or when
908 * the window is moved to another screen by user.
909 *
910 * Returns true if the graphics config has been changed, false otherwise.
911 */
912 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
913 synchronized (getStateLock()) {
914 if (graphicsConfig == gc) {
915 return false;
916 }
917 // If window's graphics config is changed from the app code, the
918 // config correspond to the same device as before; when the window
919 // is moved by user, graphicsDevice is updated in notifyReshape().
920 // In either case, there's nothing to do with screenOn here
921 graphicsConfig = gc;
922 }
923 // SurfaceData is replaced later in updateGraphicsData()
924 return true;
925 }
926
927 /**
928 * Returns true if the GraphicsDevice has been changed, false otherwise.
929 */
930 public boolean updateGraphicsDevice() {
931 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
932 synchronized (getStateLock()) {
933 if (graphicsDevice == newGraphicsDevice) {
934 return false;
935 }
936 graphicsDevice = newGraphicsDevice;
937 }
938
939 // TODO: DisplayChangedListener stuff
940 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
941
942 if (!setGraphicsConfig(newGC)) return false;
943
944 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
945 public void run() {
946 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
947 }
948 });
949 return true;
950 }
951
952 /*
953 * May be called by delegate to provide SD to Java2D code.
954 */
955 public SurfaceData getSurfaceData() {
956 synchronized (surfaceDataLock) {
957 return surfaceData;
958 }
959 }
960
961 private void replaceSurfaceData() {
962 replaceSurfaceData(true);
963 }
964
965 private void replaceSurfaceData(final boolean blit) {
966 synchronized (surfaceDataLock) {
967 final SurfaceData oldData = getSurfaceData();
968 surfaceData = platformWindow.replaceSurfaceData();
969 final Rectangle size = getSize();
970 if (getSurfaceData() != null && oldData != getSurfaceData()) {
971 clearBackground(size.width, size.height);
972 }
973
974 if (blit) {
975 blitSurfaceData(oldData, getSurfaceData());
976 }
977
978 if (oldData != null && oldData != getSurfaceData()) {
979 // TODO: drop oldData for D3D/WGL pipelines
980 // This can only happen when this peer is being created
981 oldData.flush();
982 }
983 }
984 flushOnscreenGraphics();
985 }
986
987 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
988 //TODO blit. proof-of-concept
989 if (src != dst && src != null && dst != null
990 && !(dst instanceof NullSurfaceData)
991 && !(src instanceof NullSurfaceData)
992 && src.getSurfaceType().equals(dst.getSurfaceType())
993 && src.getDefaultScale() == dst.getDefaultScale()) {
994 final Rectangle size = src.getBounds();
995 final Blit blit = Blit.locate(src.getSurfaceType(),
996 CompositeType.Src,
997 dst.getSurfaceType());
998 if (blit != null) {
999 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1000 size.width, size.height);
1001 }
1002 }
1003 }
1004
1005 /**
1006 * Request the window insets from the delegate and compares it with the
1007 * current one. This method is mostly called by the delegate, e.g. when the
1008 * window state is changed and insets should be recalculated.
1009 * <p/>
1010 * This method may be called on the toolkit thread.
1011 */
1012 public final boolean updateInsets(final Insets newInsets) {
1013 synchronized (getStateLock()) {
1014 if (insets.equals(newInsets)) {
1015 return false;
1016 }
1017 insets = newInsets;
1018 }
1019 return true;
1020 }
1021
1022 public static LWWindowPeer getWindowUnderCursor() {
1023 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1024 }
1025
1026 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1027 return lastCommonMouseEventPeer;
1028 }
1029
1030 /*
1031 * Requests platform to set native focus on a frame/dialog.
1032 * In case of a simple window, triggers appropriate java focus change.
1033 */
1034 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1035 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1036 focusLog.fine("requesting native focus to " + this);
1037 }
1038
1039 if (!focusAllowedFor()) {
1040 focusLog.fine("focus is not allowed");
1041 return false;
1042 }
1043
1044 if (platformWindow.rejectFocusRequest(cause)) {
1045 return false;
1046 }
1047
1048 Window currentActive = KeyboardFocusManager.
1049 getCurrentKeyboardFocusManager().getActiveWindow();
1050
1051 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1052 getCurrentFocusedWindow();
1053
1054 // Make the owner active window.
1055 if (isSimpleWindow()) {
1056 LWWindowPeer owner = getOwnerFrameDialog(this);
1057
1058 // If owner is not natively active, request native
1059 // activation on it w/o sending events up to java.
1060 if (owner != null && !owner.platformWindow.isActive()) {
1061 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1062 focusLog.fine("requesting native focus to the owner " + owner);
1063 }
1064 LWWindowPeer currentActivePeer = (currentActive != null ?
1065 (LWWindowPeer)currentActive.getPeer() : null);
1066
1067 // Ensure the opposite is natively active and suppress sending events.
1068 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1069 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1070 focusLog.fine("the opposite is " + currentActivePeer);
1071 }
1072 currentActivePeer.skipNextFocusChange = true;
1073 }
1074 owner.skipNextFocusChange = true;
1075
1076 owner.platformWindow.requestWindowFocus();
1077 }
1078
1079 // DKFM will synthesize all the focus/activation events correctly.
1080 changeFocusedWindow(true, opposite);
1081 return true;
1082
1083 // In case the toplevel is active but not focused, change focus directly,
1084 // as requesting native focus on it will not have effect.
1085 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1086
1087 changeFocusedWindow(true, opposite);
1088 return true;
1089 }
1090
1091 return platformWindow.requestWindowFocus();
1092 }
1093
1094 protected boolean focusAllowedFor() {
1095 Window window = getTarget();
1096 // TODO: check if modal blocked
1097 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1098 }
1099
1100 private boolean isFocusableWindow() {
1101 boolean focusable = getTarget().isFocusableWindow();
1102 if (isSimpleWindow()) {
1103 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1104 if (ownerPeer == null) {
1105 return false;
1106 }
1107 return focusable && ownerPeer.getTarget().isFocusableWindow();
1108 }
1109 return focusable;
1110 }
1111
1112 public boolean isSimpleWindow() {
1113 Window window = getTarget();
1114 return !(window instanceof Dialog || window instanceof Frame);
1115 }
1116
1117 @Override
1118 public void emulateActivation(boolean activate) {
1119 changeFocusedWindow(activate, null);
1120 }
1121
1122 /*
1123 * Changes focused window on java level.
1124 */
1125 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1126 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1127 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1128 }
1129 if (skipNextFocusChange) {
1130 focusLog.fine("skipping focus change");
1131 skipNextFocusChange = false;
1132 return;
1133 }
1134 if (!isFocusableWindow() && becomesFocused) {
1135 focusLog.fine("the window is not focusable");
1136 return;
1137 }
1138 if (becomesFocused) {
1139 synchronized (getPeerTreeLock()) {
1140 if (blocker != null) {
1141 if (focusLog.isLoggable(PlatformLogger.FINEST)) {
1142 focusLog.finest("the window is blocked by " + blocker);
1143 }
1144 return;
1145 }
1146 }
1147 }
1148
1149 // Note, the method is not called:
1150 // - when the opposite (gaining focus) window is an owned/owner window.
1151 // - for a simple window in any case.
1152 if (!becomesFocused &&
1153 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1154 {
1155 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1156 focusLog.fine("ungrabbing on " + grabbingWindow);
1157 }
1158 // ungrab a simple window if its owner looses activation.
1159 grabbingWindow.ungrab();
1160 }
1161
1162 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1163 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1164
1165 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1166 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1167
1168 // TODO: wrap in SequencedEvent
1169 postEvent(windowEvent);
1170 }
1171
1172 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1173 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1174 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1175 owner = owner.getOwner();
1176 }
1177 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1178 }
1179
1180 /**
1181 * Returns the foremost modal blocker of this window, or null.
1182 */
1183 public LWWindowPeer getBlocker() {
1184 synchronized (getPeerTreeLock()) {
1185 LWWindowPeer blocker = this.blocker;
1186 if (blocker == null) {
1187 return null;
1188 }
1189 while (blocker.blocker != null) {
1190 blocker = blocker.blocker;
1191 }
1192 return blocker;
1193 }
1194 }
1195
1196 public void enterFullScreenMode() {
1197 platformWindow.enterFullScreenMode();
1198 }
1199
1200 public void exitFullScreenMode() {
1201 platformWindow.exitFullScreenMode();
1202 }
1203
1204 public long getLayerPtr() {
1205 return getPlatformWindow().getLayerPtr();
1206 }
1207
1208 void grab() {
1209 if (grabbingWindow != null && !isGrabbing()) {
1210 grabbingWindow.ungrab();
1211 }
1212 grabbingWindow = this;
1213 }
1214
1215 final void ungrab(boolean doPost) {
1216 if (isGrabbing()) {
1217 grabbingWindow = null;
1218 if (doPost) {
1219 postEvent(new UngrabEvent(getTarget()));
1220 }
1221 }
1222 }
1223
1224 void ungrab() {
1225 ungrab(true);
1226 }
1227
1228 private boolean isGrabbing() {
1229 return this == grabbingWindow;
1230 }
1231
1232 public PeerType getPeerType() {
1233 return peerType;
1234 }
1235
1236 @Override
1237 public String toString() {
1238 return super.toString() + " [target is " + getTarget() + "]";
1239 }
1240 }