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 FramePeer, DialogPeer, FullScreenCapable, DisplayChangedListener
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 updateAlwaysOnTopState();
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 activateDisplayListener();
193 }
194
195 // Just a helper method
196 public PlatformWindow getPlatformWindow() {
197 return platformWindow;
198 }
199
200 @Override
201 protected LWWindowPeer getWindowPeerOrSelf() {
202 return this;
203 }
204
205 // ---- PEER METHODS ---- //
206
207 @Override
208 protected void disposeImpl() {
209 deactivateDisplayListener();
210 SurfaceData oldData = getSurfaceData();
211 synchronized (surfaceDataLock){
212 surfaceData = null;
213 }
214 if (oldData != null) {
215 oldData.invalidate();
216 }
217 if (isGrabbing()) {
218 ungrab();
219 }
220 platformWindow.dispose();
221 super.disposeImpl();
222 }
223
224 @Override
225 protected void setVisibleImpl(final boolean visible) {
226 super.setVisibleImpl(visible);
227 // TODO: update graphicsConfig, see 4868278
228 platformWindow.setVisible(visible);
229 if (isSimpleWindow()) {
230 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
231
232 if (visible) {
233 if (!getTarget().isAutoRequestFocus()) {
234 return;
235 } else {
236 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
237 }
238 // Focus the owner in case this window is focused.
239 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
240 // Transfer focus to the owner.
241 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
242 if (owner != null) {
243 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
244 }
245 }
246 }
247 }
248
249 @Override
250 public final GraphicsConfiguration getGraphicsConfiguration() {
251 synchronized (getStateLock()) {
252 return graphicsConfig;
253 }
254 }
255
256 @Override
257 public boolean updateGraphicsData(GraphicsConfiguration gc) {
258 setGraphicsConfig(gc);
259 return false;
260 }
261
262 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
263 if (getSurfaceData() == null) {
264 return null;
265 }
266 if (fg == null) {
267 fg = SystemColor.windowText;
268 }
269 if (bg == null) {
270 bg = SystemColor.window;
271 }
272 if (f == null) {
273 f = DEFAULT_FONT;
274 }
275 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
276 }
277
278 @Override
279 public void setBounds(int x, int y, int w, int h, int op) {
280
281 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
282 return;
283 }
284
285 if ((op & SET_CLIENT_SIZE) != 0) {
286 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
287 // instead of pulling 'insets' field up to LWComponentPeer
288 // no need to add insets since Window's notion of width and height includes insets.
289 op &= ~SET_CLIENT_SIZE;
290 op |= SET_SIZE;
291 }
292
293 if (w < MINIMUM_WIDTH) {
294 w = MINIMUM_WIDTH;
295 }
296 if (h < MINIMUM_HEIGHT) {
297 h = MINIMUM_HEIGHT;
298 }
299
300 final int maxW = getLWGC().getMaxTextureWidth();
301 final int maxH = getLWGC().getMaxTextureHeight();
302
303 if (w > maxW) {
304 w = maxW;
305 }
306 if (h > maxH) {
307 h = maxH;
308 }
309
310 // Don't post ComponentMoved/Resized and Paint events
311 // until we've got a notification from the delegate
312 setBounds(x, y, w, h, op, false, false);
313 // Get updated bounds, so we don't have to handle 'op' here manually
314 Rectangle r = getBounds();
315 platformWindow.setBounds(r.x, r.y, r.width, r.height);
316 }
317
318 @Override
319 public Point getLocationOnScreen() {
320 return platformWindow.getLocationOnScreen();
321 }
322
323 /**
324 * Overridden from LWContainerPeer to return the correct insets.
325 * Insets are queried from the delegate and are kept up to date by
326 * requiering when needed (i.e. when the window geometry is changed).
327 */
328 @Override
329 public Insets getInsets() {
330 synchronized (getStateLock()) {
331 return insets;
332 }
333 }
334
335 @Override
336 public FontMetrics getFontMetrics(Font f) {
337 // TODO: check for "use platform metrics" settings
338 return platformWindow.getFontMetrics(f);
339 }
340
341 @Override
342 public void toFront() {
343 platformWindow.toFront();
344 }
345
346 @Override
347 public void toBack() {
348 platformWindow.toBack();
349 }
350
351 @Override
352 public void setZOrder(ComponentPeer above) {
353 throw new RuntimeException("not implemented");
354 }
355
356 @Override
357 public void updateAlwaysOnTopState() {
358 platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
359 }
360
361 @Override
362 public void updateFocusableWindowState() {
363 platformWindow.updateFocusableWindowState();
364 }
365
366 @Override
367 public void setModalBlocked(Dialog blocker, boolean blocked) {
368 synchronized (getPeerTreeLock()) {
369 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
370 }
371
372 platformWindow.setModalBlocked(blocked);
373 }
374
375 @Override
376 public void updateMinimumSize() {
377 final Dimension min;
378 if (getTarget().isMinimumSizeSet()) {
379 min = getTarget().getMinimumSize();
380 min.width = Math.max(min.width, MINIMUM_WIDTH);
381 min.height = Math.max(min.height, MINIMUM_HEIGHT);
382 } else {
383 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
384 }
385
386 final Dimension max;
387 if (getTarget().isMaximumSizeSet()) {
388 max = getTarget().getMaximumSize();
389 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
390 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
391 } else {
392 max = new Dimension(getLWGC().getMaxTextureWidth(),
393 getLWGC().getMaxTextureHeight());
394 }
395
396 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
397 }
398
399 @Override
400 public void updateIconImages() {
401 getPlatformWindow().updateIconImages();
402 }
403
404 @Override
405 public void setOpacity(float opacity) {
406 getPlatformWindow().setOpacity(opacity);
407 repaintPeer();
408 }
409
410 @Override
411 public final void setOpaque(final boolean isOpaque) {
412 if (this.isOpaque != isOpaque) {
413 this.isOpaque = isOpaque;
414 updateOpaque();
415 }
416 }
417
418 private void updateOpaque() {
419 getPlatformWindow().setOpaque(!isTranslucent());
420 replaceSurfaceData(false);
421 repaintPeer();
422 }
423
424 @Override
425 public void updateWindow() {
426 }
427
428 public final boolean isTextured() {
429 return textured;
430 }
431
432 public final void setTextured(final boolean isTextured) {
433 textured = isTextured;
434 }
435
436 public final boolean isTranslucent() {
437 synchronized (getStateLock()) {
438 /*
439 * Textured window is a special case of translucent window.
440 * The difference is only in nswindow background. So when we set
441 * texture property our peer became fully translucent. It doesn't
442 * fill background, create non opaque backbuffers and layer etc.
443 */
444 return !isOpaque || isShaped() || isTextured();
445 }
446 }
447
448 @Override
449 final void applyShapeImpl(final Region shape) {
450 super.applyShapeImpl(shape);
451 updateOpaque();
452 }
453
454 @Override
455 public void repositionSecurityWarning() {
456 throw new RuntimeException("not implemented");
457 }
458
459 // ---- FRAME PEER METHODS ---- //
460
461 @Override // FramePeer and DialogPeer
462 public void setTitle(String title) {
463 platformWindow.setTitle(title == null ? "" : title);
464 }
465
466 @Override
467 public void setMenuBar(MenuBar mb) {
468 platformWindow.setMenuBar(mb);
469 }
470
471 @Override // FramePeer and DialogPeer
472 public void setResizable(boolean resizable) {
473 platformWindow.setResizable(resizable);
474 }
475
476 @Override
477 public void setState(int state) {
478 platformWindow.setWindowState(state);
479 }
480
481 @Override
482 public int getState() {
483 return windowState;
484 }
485
486 @Override
487 public void setMaximizedBounds(Rectangle bounds) {
488 // TODO: not implemented
489 }
490
491 @Override
492 public void setBoundsPrivate(int x, int y, int width, int height) {
493 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
494 }
495
496 @Override
497 public Rectangle getBoundsPrivate() {
498 throw new RuntimeException("not implemented");
499 }
500
501 // ---- DIALOG PEER METHODS ---- //
502
503 @Override
504 public void blockWindows(List<Window> windows) {
505 //TODO: LWX will probably need some collectJavaToplevels to speed this up
506 for (Window w : windows) {
507 WindowPeer wp = (WindowPeer)w.getPeer();
508 if (wp != null) {
509 wp.setModalBlocked((Dialog)getTarget(), true);
510 }
511 }
512 }
513
514 // ---- PEER NOTIFICATIONS ---- //
515
516 public void notifyIconify(boolean iconify) {
517 //The toplevel target is Frame and states are applicable to it.
518 //Otherwise, the target is Window and it don't have state property.
519 //Hopefully, no such events are posted in the queue so consider the
520 //target as Frame in all cases.
521
522 // REMIND: should we send it anyway if the state not changed since last
523 // time?
524 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
525 iconify ? WindowEvent.WINDOW_ICONIFIED
526 : WindowEvent.WINDOW_DEICONIFIED);
527 postEvent(iconifyEvent);
528
529 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
530 postWindowStateChangedEvent(newWindowState);
531
532 // REMIND: RepaintManager doesn't repaint iconified windows and
533 // hence ignores any repaint request during deiconification.
534 // So, we need to repaint window explicitly when it becomes normal.
535 if (!iconify) {
536 repaintPeer();
537 }
538 }
539
540 public void notifyZoom(boolean isZoomed) {
541 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
542 postWindowStateChangedEvent(newWindowState);
543 }
544
545 /**
546 * Called by the {@code PlatformWindow} when any part of the window should
547 * be repainted.
548 */
549 public final void notifyExpose(final Rectangle r) {
550 repaintPeer(r);
551 }
552
553 /**
554 * Called by the {@code PlatformWindow} when this window is moved/resized by
555 * user or window insets are changed. There's no notifyReshape() in
556 * LWComponentPeer as the only components which could be resized by user are
557 * top-level windows.
558 */
559 public final void notifyReshape(int x, int y, int w, int h) {
560 final boolean moved;
561 final boolean resized;
562 final boolean invalid = updateInsets(platformWindow.getInsets());
563 synchronized (getStateLock()) {
564 moved = (x != sysX) || (y != sysY);
565 resized = (w != sysW) || (h != sysH);
566 sysX = x;
567 sysY = y;
568 sysW = w;
569 sysH = h;
570 }
571
572 // Check if anything changed
573 if (!moved && !resized && !invalid) {
574 return;
575 }
576 // First, update peer's bounds
577 setBounds(x, y, w, h, SET_BOUNDS, false, false);
578
579 // Second, update the graphics config and surface data
580 final boolean isNewDevice = updateGraphicsDevice();
581 if (resized || isNewDevice) {
582 replaceSurfaceData();
583 }
584
585 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
586 if (moved || invalid) {
587 handleMove(x, y, true);
588 }
589 if (resized || invalid || isNewDevice) {
590 handleResize(w, h, true);
591 repaintPeer();
592 }
593 }
594
595 private void clearBackground(final int w, final int h) {
596 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
597 getFont());
598 if (g != null) {
599 try {
600 if (g instanceof Graphics2D) {
601 ((Graphics2D) g).setComposite(AlphaComposite.Src);
602 }
603 if (isTranslucent()) {
604 g.setColor(nonOpaqueBackground);
605 g.fillRect(0, 0, w, h);
606 }
607 if (!isTextured()) {
608 if (g instanceof SunGraphics2D) {
609 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
610 }
611 g.setColor(getBackground());
612 g.fillRect(0, 0, w, h);
613 }
614 } finally {
615 g.dispose();
616 }
617 }
618 }
619
620 public void notifyUpdateCursor() {
621 getLWToolkit().getCursorManager().updateCursorLater(this);
622 }
623
624 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
625 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
626 changeFocusedWindow(activation, oppositeWindow);
627 }
628
629 // MouseDown in non-client area
630 public void notifyNCMouseDown() {
631 // Ungrab except for a click on a Dialog with the grabbing owner
632 if (grabbingWindow != null &&
633 grabbingWindow != getOwnerFrameDialog(this))
634 {
635 grabbingWindow.ungrab();
636 }
637 }
638
639 // ---- EVENTS ---- //
640
641 /*
642 * Called by the delegate to dispatch the event to Java. Event
643 * coordinates are relative to non-client window are, i.e. the top-left
644 * point of the client area is (insets.top, insets.left).
645 */
646 public void dispatchMouseEvent(int id, long when, int button,
647 int x, int y, int screenX, int screenY,
648 int modifiers, int clickCount, boolean popupTrigger,
649 byte[] bdata)
650 {
651 // TODO: fill "bdata" member of AWTEvent
652 Rectangle r = getBounds();
653 // findPeerAt() expects parent coordinates
654 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
655
656 if (id == MouseEvent.MOUSE_EXITED) {
657 isMouseOver = false;
658 if (lastMouseEventPeer != null) {
659 if (lastMouseEventPeer.isEnabled()) {
660 Point lp = lastMouseEventPeer.windowToLocal(x, y,
661 this);
662 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
663 MouseEvent.MOUSE_EXITED, when,
664 modifiers, lp.x, lp.y, screenX,
665 screenY, clickCount, popupTrigger,
666 button));
667 }
668
669 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
670 // to a peer from another window. So we must first check if this peer is
671 // the same as lastWindowPeer
672 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
673 lastCommonMouseEventPeer = null;
674 }
675 lastMouseEventPeer = null;
676 }
677 } else if(id == MouseEvent.MOUSE_ENTERED) {
678 isMouseOver = true;
679 if (targetPeer != null) {
680 if (targetPeer.isEnabled()) {
681 Point lp = targetPeer.windowToLocal(x, y, this);
682 postEvent(new MouseEvent(targetPeer.getTarget(),
683 MouseEvent.MOUSE_ENTERED, when,
684 modifiers, lp.x, lp.y, screenX,
685 screenY, clickCount, popupTrigger,
686 button));
687 }
688 lastCommonMouseEventPeer = targetPeer;
689 lastMouseEventPeer = targetPeer;
690 }
691 } else {
692 PlatformWindow topmostPlatforWindow =
693 platformWindow.getTopmostPlatformWindowUnderMouse();
694
695 LWWindowPeer topmostWindowPeer =
696 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
697
698 // topmostWindowPeer == null condition is added for the backward
699 // compatibility with applets. It can be removed when the
700 // getTopmostPlatformWindowUnderMouse() method will be properly
701 // implemented in CPlatformEmbeddedFrame class
702 if (topmostWindowPeer == this || topmostWindowPeer == null) {
703 generateMouseEnterExitEventsForComponents(when, button, x, y,
704 screenX, screenY, modifiers, clickCount, popupTrigger,
705 targetPeer);
706 } else {
707 LWComponentPeer topmostTargetPeer =
708 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
709 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
710 screenX, screenY, modifiers, clickCount, popupTrigger,
711 topmostTargetPeer);
712 }
713
714 // TODO: fill "bdata" member of AWTEvent
715
716 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
717 int otherButtonsPressed = modifiers & ~eventButtonMask;
718
719 // For pressed/dragged/released events OS X treats other
720 // mouse buttons as if they were BUTTON2, so we do the same
721 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
722
723 // MOUSE_ENTERED/EXITED are generated for the components strictly under
724 // mouse even when dragging. That's why we first update lastMouseEventPeer
725 // based on initial targetPeer value and only then recalculate targetPeer
726 // for MOUSE_DRAGGED/RELEASED events
727 if (id == MouseEvent.MOUSE_PRESSED) {
728
729 // Ungrab only if this window is not an owned window of the grabbing one.
730 if (!isGrabbing() && grabbingWindow != null &&
731 grabbingWindow != getOwnerFrameDialog(this))
732 {
733 grabbingWindow.ungrab();
734 }
735 if (otherButtonsPressed == 0) {
736 mouseClickButtons = eventButtonMask;
737 } else {
738 mouseClickButtons |= eventButtonMask;
739 }
740
741 // The window should be focused on mouse click. If it gets activated by the native platform,
742 // this request will be no op. It will take effect when:
743 // 1. A simple not focused window is clicked.
744 // 2. An active but not focused owner frame/dialog is clicked.
745 // The mouse event then will trigger a focus request "in window" to the component, so the window
746 // should gain focus before.
747 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
748
749 mouseDownTarget[targetIdx] = targetPeer;
750 } else if (id == MouseEvent.MOUSE_DRAGGED) {
751 // Cocoa dragged event has the information about which mouse
752 // button is being dragged. Use it to determine the peer that
753 // should receive the dragged event.
754 targetPeer = mouseDownTarget[targetIdx];
755 mouseClickButtons &= ~modifiers;
756 } else if (id == MouseEvent.MOUSE_RELEASED) {
757 // TODO: currently, mouse released event goes to the same component
758 // that received corresponding mouse pressed event. For most cases,
759 // it's OK, however, we need to make sure that our behavior is consistent
760 // with 1.6 for cases where component in question have been
761 // hidden/removed in between of mouse pressed/released events.
762 targetPeer = mouseDownTarget[targetIdx];
763
764 if ((modifiers & eventButtonMask) == 0) {
765 mouseDownTarget[targetIdx] = null;
766 }
767
768 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
769 }
770
771 if (targetPeer == null) {
772 //TODO This can happen if this window is invisible. this is correct behavior in this case?
773 targetPeer = this;
774 }
775
776
777 Point lp = targetPeer.windowToLocal(x, y, this);
778 if (targetPeer.isEnabled()) {
779 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
780 when, modifiers, lp.x, lp.y,
781 screenX, screenY, clickCount,
782 popupTrigger, button);
783 postEvent(event);
784 }
785
786 if (id == MouseEvent.MOUSE_RELEASED) {
787 if ((mouseClickButtons & eventButtonMask) != 0
788 && targetPeer.isEnabled()) {
789 postEvent(new MouseEvent(targetPeer.getTarget(),
790 MouseEvent.MOUSE_CLICKED,
791 when, modifiers,
792 lp.x, lp.y, screenX, screenY,
793 clickCount, popupTrigger, button));
794 }
795 mouseClickButtons &= ~eventButtonMask;
796 }
797 }
798 notifyUpdateCursor();
799 }
800
801 private void generateMouseEnterExitEventsForComponents(long when,
802 int button, int x, int y, int screenX, int screenY,
803 int modifiers, int clickCount, boolean popupTrigger,
804 LWComponentPeer targetPeer) {
805
806 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
807 return;
808 }
809
810 // Generate Mouse Exit for components
811 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
812 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
813 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
814 MouseEvent.MOUSE_EXITED,
815 when, modifiers,
816 oldp.x, oldp.y, screenX, screenY,
817 clickCount, popupTrigger, button));
818 }
819 lastCommonMouseEventPeer = targetPeer;
820 lastMouseEventPeer = targetPeer;
821
822 // Generate Mouse Enter for components
823 if (targetPeer != null && targetPeer.isEnabled()) {
824 Point newp = targetPeer.windowToLocal(x, y, this);
825 postEvent(new MouseEvent(targetPeer.getTarget(),
826 MouseEvent.MOUSE_ENTERED,
827 when, modifiers,
828 newp.x, newp.y, screenX, screenY,
829 clickCount, popupTrigger, button));
830 }
831 }
832
833 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
834 int scrollType, int scrollAmount,
835 int wheelRotation, double preciseWheelRotation,
836 byte[] bdata)
837 {
838 // TODO: could we just use the last mouse event target here?
839 Rectangle r = getBounds();
840 // findPeerAt() expects parent coordinates
841 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
842 if (targetPeer == null || !targetPeer.isEnabled()) {
843 return;
844 }
845
846 Point lp = targetPeer.windowToLocal(x, y, this);
847 // TODO: fill "bdata" member of AWTEvent
848 // TODO: screenX/screenY
849 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
850 MouseEvent.MOUSE_WHEEL,
851 when, modifiers,
852 lp.x, lp.y,
853 0, 0, /* screenX, Y */
854 0 /* clickCount */, false /* popupTrigger */,
855 scrollType, scrollAmount,
856 wheelRotation, preciseWheelRotation));
857 }
858
859 /*
860 * Called by the delegate when a key is pressed.
861 */
862 public void dispatchKeyEvent(int id, long when, int modifiers,
863 int keyCode, char keyChar, int keyLocation)
864 {
865 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
866 Component focusOwner = kfmPeer.getCurrentFocusOwner();
867
868 if (focusOwner == null) {
869 focusOwner = kfmPeer.getCurrentFocusedWindow();
870 if (focusOwner == null) {
871 focusOwner = this.getTarget();
872 }
873 }
874 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
875 }
876
877
878 // ---- UTILITY METHODS ---- //
879
880 private void activateDisplayListener() {
881 final GraphicsEnvironment ge =
882 GraphicsEnvironment.getLocalGraphicsEnvironment();
883 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
884 }
885
886 private void deactivateDisplayListener() {
887 final GraphicsEnvironment ge =
888 GraphicsEnvironment.getLocalGraphicsEnvironment();
889 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
890 }
891
892 private void postWindowStateChangedEvent(int newWindowState) {
893 if (getTarget() instanceof Frame) {
894 AWTAccessor.getFrameAccessor().setExtendedState(
895 (Frame)getTarget(), newWindowState);
896 }
897 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
898 WindowEvent.WINDOW_STATE_CHANGED,
899 windowState, newWindowState);
900 postEvent(stateChangedEvent);
901 windowState = newWindowState;
902 }
903
904 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
905 // TODO: this method can be implemented in a more
906 // efficient way by forwarding to the delegate
907 GraphicsDevice gd = gc.getDevice();
908 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
909 GraphicsDevice[] gds = ge.getScreenDevices();
910 for (int i = 0; i < gds.length; i++) {
911 if (gds[i] == gd) {
912 return i;
913 }
914 }
915 // Should never happen if gc is a screen device config
916 return 0;
917 }
918
919 /*
920 * This method is called when window's graphics config is changed from
921 * the app code (e.g. when the window is made non-opaque) or when
922 * the window is moved to another screen by user.
923 *
924 * Returns true if the graphics config has been changed, false otherwise.
925 */
926 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
927 synchronized (getStateLock()) {
928 if (graphicsConfig == gc) {
929 return false;
930 }
931 // If window's graphics config is changed from the app code, the
932 // config correspond to the same device as before; when the window
933 // is moved by user, graphicsDevice is updated in notifyReshape().
934 // In either case, there's nothing to do with screenOn here
935 graphicsConfig = gc;
936 }
937 // SurfaceData is replaced later in updateGraphicsData()
938 return true;
939 }
940
941 /**
942 * Returns true if the GraphicsDevice has been changed, false otherwise.
943 */
944 public boolean updateGraphicsDevice() {
945 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
946 synchronized (getStateLock()) {
947 if (graphicsDevice == newGraphicsDevice) {
948 return false;
949 }
950 graphicsDevice = newGraphicsDevice;
951 }
952
953 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
954
955 if (!setGraphicsConfig(newGC)) return false;
956
957 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
958 public void run() {
959 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
960 }
961 });
962 return true;
963 }
964
965 @Override
966 public final void displayChanged() {
967 updateGraphicsDevice();
968 // Replace surface unconditionally, because internal state of the
969 // GraphicsDevice could be changed.
970 replaceSurfaceData();
971 repaintPeer();
972 }
973
974 @Override
975 public final void paletteChanged() {
976 // components do not need to react to this event.
977 }
978
979 /*
980 * May be called by delegate to provide SD to Java2D code.
981 */
982 public SurfaceData getSurfaceData() {
983 synchronized (surfaceDataLock) {
984 return surfaceData;
985 }
986 }
987
988 private void replaceSurfaceData() {
989 replaceSurfaceData(true);
990 }
991
992 private void replaceSurfaceData(final boolean blit) {
993 synchronized (surfaceDataLock) {
994 final SurfaceData oldData = getSurfaceData();
995 surfaceData = platformWindow.replaceSurfaceData();
996 final Rectangle size = getSize();
997 if (getSurfaceData() != null && oldData != getSurfaceData()) {
998 clearBackground(size.width, size.height);
999 }
1000
1001 if (blit) {
1002 blitSurfaceData(oldData, getSurfaceData());
1003 }
1004
1005 if (oldData != null && oldData != getSurfaceData()) {
1006 // TODO: drop oldData for D3D/WGL pipelines
1007 // This can only happen when this peer is being created
1008 oldData.flush();
1009 }
1010 }
1011 flushOnscreenGraphics();
1012 }
1013
1014 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1015 //TODO blit. proof-of-concept
1016 if (src != dst && src != null && dst != null
1017 && !(dst instanceof NullSurfaceData)
1018 && !(src instanceof NullSurfaceData)
1019 && src.getSurfaceType().equals(dst.getSurfaceType())
1020 && src.getDefaultScale() == dst.getDefaultScale()) {
1021 final Rectangle size = src.getBounds();
1022 final Blit blit = Blit.locate(src.getSurfaceType(),
1023 CompositeType.Src,
1024 dst.getSurfaceType());
1025 if (blit != null) {
1026 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1027 size.width, size.height);
1028 }
1029 }
1030 }
1031
1032 /**
1033 * Request the window insets from the delegate and compares it with the
1034 * current one. This method is mostly called by the delegate, e.g. when the
1035 * window state is changed and insets should be recalculated.
1036 * <p/>
1037 * This method may be called on the toolkit thread.
1038 */
1039 public final boolean updateInsets(final Insets newInsets) {
1040 synchronized (getStateLock()) {
1041 if (insets.equals(newInsets)) {
1042 return false;
1043 }
1044 insets = newInsets;
1045 }
1046 return true;
1047 }
1048
1049 public static LWWindowPeer getWindowUnderCursor() {
1050 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1051 }
1052
1053 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1054 return lastCommonMouseEventPeer;
1055 }
1056
1057 /*
1058 * Requests platform to set native focus on a frame/dialog.
1059 * In case of a simple window, triggers appropriate java focus change.
1060 */
1061 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1062 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1063 focusLog.fine("requesting native focus to " + this);
1064 }
1065
1066 if (!focusAllowedFor()) {
1067 focusLog.fine("focus is not allowed");
1068 return false;
1069 }
1070
1071 if (platformWindow.rejectFocusRequest(cause)) {
1072 return false;
1073 }
1074
1075 Window currentActive = KeyboardFocusManager.
1076 getCurrentKeyboardFocusManager().getActiveWindow();
1077
1078 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1079 getCurrentFocusedWindow();
1080
1081 // Make the owner active window.
1082 if (isSimpleWindow()) {
1083 LWWindowPeer owner = getOwnerFrameDialog(this);
1084
1085 // If owner is not natively active, request native
1086 // activation on it w/o sending events up to java.
1087 if (owner != null && !owner.platformWindow.isActive()) {
1088 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1089 focusLog.fine("requesting native focus to the owner " + owner);
1090 }
1091 LWWindowPeer currentActivePeer = (currentActive != null ?
1092 (LWWindowPeer)currentActive.getPeer() : null);
1093
1094 // Ensure the opposite is natively active and suppress sending events.
1095 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1096 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1097 focusLog.fine("the opposite is " + currentActivePeer);
1098 }
1099 currentActivePeer.skipNextFocusChange = true;
1100 }
1101 owner.skipNextFocusChange = true;
1102
1103 owner.platformWindow.requestWindowFocus();
1104 }
1105
1106 // DKFM will synthesize all the focus/activation events correctly.
1107 changeFocusedWindow(true, opposite);
1108 return true;
1109
1110 // In case the toplevel is active but not focused, change focus directly,
1111 // as requesting native focus on it will not have effect.
1112 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1113
1114 changeFocusedWindow(true, opposite);
1115 return true;
1116 }
1117
1118 return platformWindow.requestWindowFocus();
1119 }
1120
1121 protected boolean focusAllowedFor() {
1122 Window window = getTarget();
1123 // TODO: check if modal blocked
1124 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1125 }
1126
1127 private boolean isFocusableWindow() {
1128 boolean focusable = getTarget().isFocusableWindow();
1129 if (isSimpleWindow()) {
1130 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1131 if (ownerPeer == null) {
1132 return false;
1133 }
1134 return focusable && ownerPeer.getTarget().isFocusableWindow();
1135 }
1136 return focusable;
1137 }
1138
1139 public boolean isSimpleWindow() {
1140 Window window = getTarget();
1141 return !(window instanceof Dialog || window instanceof Frame);
1142 }
1143
1144 @Override
1145 public void emulateActivation(boolean activate) {
1146 changeFocusedWindow(activate, null);
1147 }
1148
1149 /*
1150 * Changes focused window on java level.
1151 */
1152 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1153 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1154 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1155 }
1156 if (skipNextFocusChange) {
1157 focusLog.fine("skipping focus change");
1158 skipNextFocusChange = false;
1159 return;
1160 }
1161 if (!isFocusableWindow() && becomesFocused) {
1162 focusLog.fine("the window is not focusable");
1163 return;
1164 }
1165 if (becomesFocused) {
1166 synchronized (getPeerTreeLock()) {
1167 if (blocker != null) {
1168 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1169 focusLog.finest("the window is blocked by " + blocker);
1170 }
1171 return;
1172 }
1173 }
1174 }
1175
1176 // Note, the method is not called:
1177 // - when the opposite (gaining focus) window is an owned/owner window.
1178 // - for a simple window in any case.
1179 if (!becomesFocused &&
1180 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1181 {
1182 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1183 focusLog.fine("ungrabbing on " + grabbingWindow);
1184 }
1185 // ungrab a simple window if its owner looses activation.
1186 grabbingWindow.ungrab();
1187 }
1188
1189 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1190 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1191
1192 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1193 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1194
1195 // TODO: wrap in SequencedEvent
1196 postEvent(windowEvent);
1197 }
1198
1199 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1200 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1201 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1202 owner = owner.getOwner();
1203 }
1204 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1205 }
1206
1207 /**
1208 * Returns the foremost modal blocker of this window, or null.
1209 */
1210 public LWWindowPeer getBlocker() {
1211 synchronized (getPeerTreeLock()) {
1212 LWWindowPeer blocker = this.blocker;
1213 if (blocker == null) {
1214 return null;
1215 }
1216 while (blocker.blocker != null) {
1217 blocker = blocker.blocker;
1218 }
1219 return blocker;
1220 }
1221 }
1222
1223 public void enterFullScreenMode() {
1224 platformWindow.enterFullScreenMode();
1225 }
1226
1227 public void exitFullScreenMode() {
1228 platformWindow.exitFullScreenMode();
1229 }
1230
1231 public long getLayerPtr() {
1232 return getPlatformWindow().getLayerPtr();
1233 }
1234
1235 void grab() {
1236 if (grabbingWindow != null && !isGrabbing()) {
1237 grabbingWindow.ungrab();
1238 }
1239 grabbingWindow = this;
1240 }
1241
1242 final void ungrab(boolean doPost) {
1243 if (isGrabbing()) {
1244 grabbingWindow = null;
1245 if (doPost) {
1246 postEvent(new UngrabEvent(getTarget()));
1247 }
1248 }
1249 }
1250
1251 void ungrab() {
1252 ungrab(true);
1253 }
1254
1255 private boolean isGrabbing() {
1256 return this == grabbingWindow;
1257 }
1258
1259 public PeerType getPeerType() {
1260 return peerType;
1261 }
1262
1263 @Override
1264 public String toString() {
1265 return super.toString() + " [target is " + getTarget() + "]";
1266 }
1267 }