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, PlatformEventNotifier
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 private final SecurityWarningWindow warningWindow;
116
117 /**
118 * Current modal blocker or null.
119 *
120 * Synchronization: peerTreeLock.
121 */
122 private LWWindowPeer blocker;
123
124 public LWWindowPeer(Window target, PlatformComponent platformComponent,
125 PlatformWindow platformWindow, PeerType peerType)
126 {
127 super(target, platformComponent);
128 this.platformWindow = platformWindow;
129 this.peerType = peerType;
130
131 Window owner = target.getOwner();
132 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null;
133 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
134
135 // The delegate.initialize() needs a non-null GC on X11.
136 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
137 synchronized (getStateLock()) {
138 // graphicsConfig should be updated according to the real window
139 // bounds when the window is shown, see 4868278
140 this.graphicsConfig = gc;
141 }
142
143 if (!target.isFontSet()) {
144 target.setFont(DEFAULT_FONT);
145 }
146
147 if (!target.isBackgroundSet()) {
148 target.setBackground(SystemColor.window);
149 } else {
150 // first we check if user provided alpha for background. This is
151 // similar to what Apple's Java do.
152 // Since JDK7 we should rely on setOpacity() only.
153 // this.opacity = c.getAlpha();
154 }
155
156 if (!target.isForegroundSet()) {
157 target.setForeground(SystemColor.windowText);
158 // we should not call setForeground because it will call a repaint
159 // which the peer may not be ready to do yet.
160 }
161
162 platformWindow.initialize(target, this, ownerDelegate);
163
164 // Init warning window(for applets)
165 SecurityWarningWindow warn = null;
166 if (((Window)target).getWarningString() != null) {
167 // accessSystemTray permission allows to display TrayIcon, TrayIcon tooltip
168 // and TrayIcon balloon windows without a warning window.
169 if (!AWTAccessor.getWindowAccessor().isTrayIconWindow((Window)target)) {
170 LWToolkit toolkit = (LWToolkit)Toolkit.getDefaultToolkit();
171 warn = toolkit.createSecurityWarning(target, this);
172 }
173 }
174
175 warningWindow = warn;
176 }
177
178 @Override
179 void initializeImpl() {
180 super.initializeImpl();
181
182
183 if (getTarget() instanceof Frame) {
184 setTitle(((Frame) getTarget()).getTitle());
185 setState(((Frame) getTarget()).getExtendedState());
186 } else if (getTarget() instanceof Dialog) {
187 setTitle(((Dialog) getTarget()).getTitle());
188 }
189
190 updateAlwaysOnTopState();
191 updateMinimumSize();
192
193 final Shape shape = getTarget().getShape();
194 if (shape != null) {
195 applyShape(Region.getInstance(shape, null));
196 }
197
198 final float opacity = getTarget().getOpacity();
199 if (opacity < 1.0f) {
200 setOpacity(opacity);
201 }
202
203 setOpaque(getTarget().isOpaque());
204
205 updateInsets(platformWindow.getInsets());
206 if (getSurfaceData() == null) {
207 replaceSurfaceData(false);
208 }
209 activateDisplayListener();
210 }
211
212 // Just a helper method
213 public PlatformWindow getPlatformWindow() {
214 return platformWindow;
215 }
216
217 @Override
218 protected LWWindowPeer getWindowPeerOrSelf() {
219 return this;
220 }
221
222 // ---- PEER METHODS ---- //
223
224 @Override
225 protected void disposeImpl() {
226 deactivateDisplayListener();
227 SurfaceData oldData = getSurfaceData();
228 synchronized (surfaceDataLock){
229 surfaceData = null;
230 }
231 if (oldData != null) {
232 oldData.invalidate();
233 }
234 if (isGrabbing()) {
235 ungrab();
236 }
237 if (warningWindow != null) {
238 warningWindow.dispose();
239 }
240
241 platformWindow.dispose();
242 super.disposeImpl();
243 }
244
245 @Override
246 protected void setVisibleImpl(final boolean visible) {
247 if (!visible && warningWindow != null) {
248 warningWindow.setVisible(false, false);
249 }
250
251 super.setVisibleImpl(visible);
252 // TODO: update graphicsConfig, see 4868278
253 platformWindow.setVisible(visible);
254 if (isSimpleWindow()) {
255 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
256
257 if (visible) {
258 if (!getTarget().isAutoRequestFocus()) {
259 return;
260 } else {
261 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
262 }
263 // Focus the owner in case this window is focused.
264 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
265 // Transfer focus to the owner.
266 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
267 if (owner != null) {
268 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
269 }
270 }
271 }
272 }
273
274 @Override
275 public final GraphicsConfiguration getGraphicsConfiguration() {
276 synchronized (getStateLock()) {
277 return graphicsConfig;
278 }
279 }
280
281 @Override
282 public boolean updateGraphicsData(GraphicsConfiguration gc) {
283 setGraphicsConfig(gc);
284 return false;
285 }
286
287 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
288 if (getSurfaceData() == null) {
289 return null;
290 }
291 if (fg == null) {
292 fg = SystemColor.windowText;
293 }
294 if (bg == null) {
295 bg = SystemColor.window;
296 }
297 if (f == null) {
298 f = DEFAULT_FONT;
299 }
300 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
301 }
302
303 @Override
304 public void setBounds(int x, int y, int w, int h, int op) {
305
306 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
307 return;
308 }
309
310 if ((op & SET_CLIENT_SIZE) != 0) {
311 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
312 // instead of pulling 'insets' field up to LWComponentPeer
313 // no need to add insets since Window's notion of width and height includes insets.
314 op &= ~SET_CLIENT_SIZE;
315 op |= SET_SIZE;
316 }
317
318 if (w < MINIMUM_WIDTH) {
319 w = MINIMUM_WIDTH;
320 }
321 if (h < MINIMUM_HEIGHT) {
322 h = MINIMUM_HEIGHT;
323 }
324
325 final int maxW = getLWGC().getMaxTextureWidth();
326 final int maxH = getLWGC().getMaxTextureHeight();
327
328 if (w > maxW) {
329 w = maxW;
330 }
331 if (h > maxH) {
332 h = maxH;
333 }
334
335 // Don't post ComponentMoved/Resized and Paint events
336 // until we've got a notification from the delegate
337 setBounds(x, y, w, h, op, false, false);
338 // Get updated bounds, so we don't have to handle 'op' here manually
339 Rectangle r = getBounds();
340 platformWindow.setBounds(r.x, r.y, r.width, r.height);
341 }
342
343 @Override
344 public Point getLocationOnScreen() {
345 return platformWindow.getLocationOnScreen();
346 }
347
348 /**
349 * Overridden from LWContainerPeer to return the correct insets.
350 * Insets are queried from the delegate and are kept up to date by
351 * requiering when needed (i.e. when the window geometry is changed).
352 */
353 @Override
354 public Insets getInsets() {
355 synchronized (getStateLock()) {
356 return insets;
357 }
358 }
359
360 @Override
361 public FontMetrics getFontMetrics(Font f) {
362 // TODO: check for "use platform metrics" settings
363 return platformWindow.getFontMetrics(f);
364 }
365
366 @Override
367 public void toFront() {
368 platformWindow.toFront();
369 }
370
371 @Override
372 public void toBack() {
373 platformWindow.toBack();
374 }
375
376 @Override
377 public void setZOrder(ComponentPeer above) {
378 throw new RuntimeException("not implemented");
379 }
380
381 @Override
382 public void updateAlwaysOnTopState() {
383 platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
384 }
385
386 @Override
387 public void updateFocusableWindowState() {
388 platformWindow.updateFocusableWindowState();
389 }
390
391 @Override
392 public void setModalBlocked(Dialog blocker, boolean blocked) {
393 synchronized (getPeerTreeLock()) {
394 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
395 }
396
397 platformWindow.setModalBlocked(blocked);
398 }
399
400 @Override
401 public void updateMinimumSize() {
402 final Dimension min;
403 if (getTarget().isMinimumSizeSet()) {
404 min = getTarget().getMinimumSize();
405 min.width = Math.max(min.width, MINIMUM_WIDTH);
406 min.height = Math.max(min.height, MINIMUM_HEIGHT);
407 } else {
408 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
409 }
410
411 final Dimension max;
412 if (getTarget().isMaximumSizeSet()) {
413 max = getTarget().getMaximumSize();
414 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
415 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
416 } else {
417 max = new Dimension(getLWGC().getMaxTextureWidth(),
418 getLWGC().getMaxTextureHeight());
419 }
420
421 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
422 }
423
424 @Override
425 public void updateIconImages() {
426 getPlatformWindow().updateIconImages();
427 }
428
429 @Override
430 public void setOpacity(float opacity) {
431 getPlatformWindow().setOpacity(opacity);
432 repaintPeer();
433 }
434
435 @Override
436 public final void setOpaque(final boolean isOpaque) {
437 if (this.isOpaque != isOpaque) {
438 this.isOpaque = isOpaque;
439 updateOpaque();
440 }
441 }
442
443 private void updateOpaque() {
444 getPlatformWindow().setOpaque(!isTranslucent());
445 replaceSurfaceData(false);
446 repaintPeer();
447 }
448
449 @Override
450 public void updateWindow() {
451 }
452
453 public final boolean isTextured() {
454 return textured;
455 }
456
457 public final void setTextured(final boolean isTextured) {
458 textured = isTextured;
459 }
460
461 public final boolean isTranslucent() {
462 synchronized (getStateLock()) {
463 /*
464 * Textured window is a special case of translucent window.
465 * The difference is only in nswindow background. So when we set
466 * texture property our peer became fully translucent. It doesn't
467 * fill background, create non opaque backbuffers and layer etc.
468 */
469 return !isOpaque || isShaped() || isTextured();
470 }
471 }
472
473 @Override
474 final void applyShapeImpl(final Region shape) {
475 super.applyShapeImpl(shape);
476 updateOpaque();
477 }
478
479 @Override
480 public void repositionSecurityWarning() {
481 if (warningWindow != null) {
482 AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
483 Window target = getTarget();
484 int x = compAccessor.getX(target);
485 int y = compAccessor.getY(target);
486 int width = compAccessor.getWidth(target);
487 int height = compAccessor.getHeight(target);
488 warningWindow.reposition(x, y, width, height);
489 }
490 }
491
492 // ---- FRAME PEER METHODS ---- //
493
494 @Override // FramePeer and DialogPeer
495 public void setTitle(String title) {
496 platformWindow.setTitle(title == null ? "" : title);
497 }
498
499 @Override
500 public void setMenuBar(MenuBar mb) {
501 platformWindow.setMenuBar(mb);
502 }
503
504 @Override // FramePeer and DialogPeer
505 public void setResizable(boolean resizable) {
506 platformWindow.setResizable(resizable);
507 }
508
509 @Override
510 public void setState(int state) {
511 platformWindow.setWindowState(state);
512 }
513
514 @Override
515 public int getState() {
516 return windowState;
517 }
518
519 @Override
520 public void setMaximizedBounds(Rectangle bounds) {
521 // TODO: not implemented
522 }
523
524 @Override
525 public void setBoundsPrivate(int x, int y, int width, int height) {
526 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
527 }
528
529 @Override
530 public Rectangle getBoundsPrivate() {
531 throw new RuntimeException("not implemented");
532 }
533
534 // ---- DIALOG PEER METHODS ---- //
535
536 @Override
537 public void blockWindows(List<Window> windows) {
538 //TODO: LWX will probably need some collectJavaToplevels to speed this up
539 for (Window w : windows) {
540 WindowPeer wp = (WindowPeer)w.getPeer();
541 if (wp != null) {
542 wp.setModalBlocked((Dialog)getTarget(), true);
543 }
544 }
545 }
546
547 // ---- PEER NOTIFICATIONS ---- //
548
549 @Override
550 public void notifyIconify(boolean iconify) {
551 //The toplevel target is Frame and states are applicable to it.
552 //Otherwise, the target is Window and it don't have state property.
553 //Hopefully, no such events are posted in the queue so consider the
554 //target as Frame in all cases.
555
556 // REMIND: should we send it anyway if the state not changed since last
557 // time?
558 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
559 iconify ? WindowEvent.WINDOW_ICONIFIED
560 : WindowEvent.WINDOW_DEICONIFIED);
561 postEvent(iconifyEvent);
562
563 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
564 postWindowStateChangedEvent(newWindowState);
565
566 // REMIND: RepaintManager doesn't repaint iconified windows and
567 // hence ignores any repaint request during deiconification.
568 // So, we need to repaint window explicitly when it becomes normal.
569 if (!iconify) {
570 repaintPeer();
571 }
572 }
573
574 @Override
575 public void notifyZoom(boolean isZoomed) {
576 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
577 postWindowStateChangedEvent(newWindowState);
578 }
579
580 /**
581 * Called by the {@code PlatformWindow} when any part of the window should
582 * be repainted.
583 */
584 @Override
585 public void notifyExpose(final Rectangle r) {
586 repaintPeer(r);
587 }
588
589 /**
590 * Called by the {@code PlatformWindow} when this window is moved/resized by
591 * user or window insets are changed. There's no notifyReshape() in
592 * LWComponentPeer as the only components which could be resized by user are
593 * top-level windows.
594 */
595 @Override
596 public void notifyReshape(int x, int y, int w, int h) {
597 final boolean moved;
598 final boolean resized;
599 final boolean invalid = updateInsets(platformWindow.getInsets());
600 synchronized (getStateLock()) {
601 moved = (x != sysX) || (y != sysY);
602 resized = (w != sysW) || (h != sysH);
603 sysX = x;
604 sysY = y;
605 sysW = w;
606 sysH = h;
607 }
608
609 // Check if anything changed
610 if (!moved && !resized && !invalid) {
611 return;
612 }
613 // First, update peer's bounds
614 setBounds(x, y, w, h, SET_BOUNDS, false, false);
615
616 // Second, update the graphics config and surface data
617 final boolean isNewDevice = updateGraphicsDevice();
618 if (resized || isNewDevice) {
619 replaceSurfaceData();
620 }
621
622 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
623 if (moved || invalid) {
624 handleMove(x, y, true);
625 }
626 if (resized || invalid || isNewDevice) {
627 handleResize(w, h, true);
628 repaintPeer();
629 }
630
631 repositionSecurityWarning();
632 }
633
634 private void clearBackground(final int w, final int h) {
635 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
636 getFont());
637 if (g != null) {
638 try {
639 if (g instanceof Graphics2D) {
640 ((Graphics2D) g).setComposite(AlphaComposite.Src);
641 }
642 if (isTranslucent()) {
643 g.setColor(nonOpaqueBackground);
644 g.fillRect(0, 0, w, h);
645 }
646 if (!isTextured()) {
647 if (g instanceof SunGraphics2D) {
648 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
649 }
650 g.setColor(getBackground());
651 g.fillRect(0, 0, w, h);
652 }
653 } finally {
654 g.dispose();
655 }
656 }
657 }
658
659 @Override
660 public void notifyUpdateCursor() {
661 getLWToolkit().getCursorManager().updateCursorLater(this);
662 }
663
664 @Override
665 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
666 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
667 changeFocusedWindow(activation, oppositeWindow);
668 }
669
670 // MouseDown in non-client area
671 @Override
672 public void notifyNCMouseDown() {
673 // Ungrab except for a click on a Dialog with the grabbing owner
674 if (grabbingWindow != null &&
675 grabbingWindow != getOwnerFrameDialog(this))
676 {
677 grabbingWindow.ungrab();
678 }
679 }
680
681 // ---- EVENTS ---- //
682
683 /*
684 * Called by the delegate to dispatch the event to Java. Event
685 * coordinates are relative to non-client window are, i.e. the top-left
686 * point of the client area is (insets.top, insets.left).
687 */
688 @Override
689 public void notifyMouseEvent(int id, long when, int button,
690 int x, int y, int screenX, int screenY,
691 int modifiers, int clickCount, boolean popupTrigger,
692 byte[] bdata)
693 {
694 // TODO: fill "bdata" member of AWTEvent
695 Rectangle r = getBounds();
696 // findPeerAt() expects parent coordinates
697 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
698
699 if (id == MouseEvent.MOUSE_EXITED) {
700 isMouseOver = false;
701 if (lastMouseEventPeer != null) {
702 if (lastMouseEventPeer.isEnabled()) {
703 Point lp = lastMouseEventPeer.windowToLocal(x, y,
704 this);
705 Component target = lastMouseEventPeer.getTarget();
706 postMouseExitedEvent(target, when, modifiers, lp,
707 screenX, screenY, clickCount, popupTrigger, button);
708 }
709
710 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
711 // to a peer from another window. So we must first check if this peer is
712 // the same as lastWindowPeer
713 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
714 lastCommonMouseEventPeer = null;
715 }
716 lastMouseEventPeer = null;
717 }
718 } else if(id == MouseEvent.MOUSE_ENTERED) {
719 isMouseOver = true;
720 if (targetPeer != null) {
721 if (targetPeer.isEnabled()) {
722 Point lp = targetPeer.windowToLocal(x, y, this);
723 Component target = targetPeer.getTarget();
724 postMouseEnteredEvent(target, when, modifiers, lp,
725 screenX, screenY, clickCount, popupTrigger, button);
726 }
727 lastCommonMouseEventPeer = targetPeer;
728 lastMouseEventPeer = targetPeer;
729 }
730 } else {
731 PlatformWindow topmostPlatforWindow =
732 platformWindow.getTopmostPlatformWindowUnderMouse();
733
734 LWWindowPeer topmostWindowPeer =
735 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
736
737 // topmostWindowPeer == null condition is added for the backward
738 // compatibility with applets. It can be removed when the
739 // getTopmostPlatformWindowUnderMouse() method will be properly
740 // implemented in CPlatformEmbeddedFrame class
741 if (topmostWindowPeer == this || topmostWindowPeer == null) {
742 generateMouseEnterExitEventsForComponents(when, button, x, y,
743 screenX, screenY, modifiers, clickCount, popupTrigger,
744 targetPeer);
745 } else {
746 LWComponentPeer topmostTargetPeer =
747 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
748 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
749 screenX, screenY, modifiers, clickCount, popupTrigger,
750 topmostTargetPeer);
751 }
752
753 // TODO: fill "bdata" member of AWTEvent
754
755 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
756 int otherButtonsPressed = modifiers & ~eventButtonMask;
757
758 // For pressed/dragged/released events OS X treats other
759 // mouse buttons as if they were BUTTON2, so we do the same
760 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
761
762 // MOUSE_ENTERED/EXITED are generated for the components strictly under
763 // mouse even when dragging. That's why we first update lastMouseEventPeer
764 // based on initial targetPeer value and only then recalculate targetPeer
765 // for MOUSE_DRAGGED/RELEASED events
766 if (id == MouseEvent.MOUSE_PRESSED) {
767
768 // Ungrab only if this window is not an owned window of the grabbing one.
769 if (!isGrabbing() && grabbingWindow != null &&
770 grabbingWindow != getOwnerFrameDialog(this))
771 {
772 grabbingWindow.ungrab();
773 }
774 if (otherButtonsPressed == 0) {
775 mouseClickButtons = eventButtonMask;
776 } else {
777 mouseClickButtons |= eventButtonMask;
778 }
779
780 // The window should be focused on mouse click. If it gets activated by the native platform,
781 // this request will be no op. It will take effect when:
782 // 1. A simple not focused window is clicked.
783 // 2. An active but not focused owner frame/dialog is clicked.
784 // The mouse event then will trigger a focus request "in window" to the component, so the window
785 // should gain focus before.
786 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
787
788 mouseDownTarget[targetIdx] = targetPeer;
789 } else if (id == MouseEvent.MOUSE_DRAGGED) {
790 // Cocoa dragged event has the information about which mouse
791 // button is being dragged. Use it to determine the peer that
792 // should receive the dragged event.
793 targetPeer = mouseDownTarget[targetIdx];
794 mouseClickButtons &= ~modifiers;
795 } else if (id == MouseEvent.MOUSE_RELEASED) {
796 // TODO: currently, mouse released event goes to the same component
797 // that received corresponding mouse pressed event. For most cases,
798 // it's OK, however, we need to make sure that our behavior is consistent
799 // with 1.6 for cases where component in question have been
800 // hidden/removed in between of mouse pressed/released events.
801 targetPeer = mouseDownTarget[targetIdx];
802
803 if ((modifiers & eventButtonMask) == 0) {
804 mouseDownTarget[targetIdx] = null;
805 }
806
807 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
808 }
809
810 if (targetPeer == null) {
811 //TODO This can happen if this window is invisible. this is correct behavior in this case?
812 targetPeer = this;
813 }
814
815
816 Point lp = targetPeer.windowToLocal(x, y, this);
817 if (targetPeer.isEnabled()) {
818 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
819 when, modifiers, lp.x, lp.y,
820 screenX, screenY, clickCount,
821 popupTrigger, button);
822 postEvent(event);
823 }
824
825 if (id == MouseEvent.MOUSE_RELEASED) {
826 if ((mouseClickButtons & eventButtonMask) != 0
827 && targetPeer.isEnabled()) {
828 postEvent(new MouseEvent(targetPeer.getTarget(),
829 MouseEvent.MOUSE_CLICKED,
830 when, modifiers,
831 lp.x, lp.y, screenX, screenY,
832 clickCount, popupTrigger, button));
833 }
834 mouseClickButtons &= ~eventButtonMask;
835 }
836 }
837 notifyUpdateCursor();
838 }
839
840 private void generateMouseEnterExitEventsForComponents(long when,
841 int button, int x, int y, int screenX, int screenY,
842 int modifiers, int clickCount, boolean popupTrigger,
843 LWComponentPeer targetPeer) {
844
845 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
846 return;
847 }
848
849 // Generate Mouse Exit for components
850 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
851 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
852 Component target = lastMouseEventPeer.getTarget();
853 postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
854 clickCount, popupTrigger, button);
855 }
856 lastCommonMouseEventPeer = targetPeer;
857 lastMouseEventPeer = targetPeer;
858
859 // Generate Mouse Enter for components
860 if (targetPeer != null && targetPeer.isEnabled()) {
861 Point newp = targetPeer.windowToLocal(x, y, this);
862 Component target = targetPeer.getTarget();
863 postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
864 }
865 }
866
867 private void postMouseEnteredEvent(Component target, long when, int modifiers,
868 Point loc, int xAbs, int yAbs,
869 int clickCount, boolean popupTrigger, int button) {
870
871 updateSecurityWarningVisibility();
872
873 postEvent(new MouseEvent(target,
874 MouseEvent.MOUSE_ENTERED,
875 when, modifiers,
876 loc.x, loc.y, xAbs, yAbs,
877 clickCount, popupTrigger, button));
878 }
879
880 private void postMouseExitedEvent(Component target, long when, int modifiers,
881 Point loc, int xAbs, int yAbs,
882 int clickCount, boolean popupTrigger, int button) {
883
884 updateSecurityWarningVisibility();
885
886 postEvent(new MouseEvent(target,
887 MouseEvent.MOUSE_EXITED,
888 when, modifiers,
889 loc.x, loc.y, xAbs, yAbs,
890 clickCount, popupTrigger, button));
891 }
892
893 @Override
894 public void notifyMouseWheelEvent(long when, int x, int y, int modifiers,
895 int scrollType, int scrollAmount,
896 int wheelRotation, double preciseWheelRotation,
897 byte[] bdata)
898 {
899 // TODO: could we just use the last mouse event target here?
900 Rectangle r = getBounds();
901 // findPeerAt() expects parent coordinates
902 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
903 if (targetPeer == null || !targetPeer.isEnabled()) {
904 return;
905 }
906
907 Point lp = targetPeer.windowToLocal(x, y, this);
908 // TODO: fill "bdata" member of AWTEvent
909 // TODO: screenX/screenY
910 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
911 MouseEvent.MOUSE_WHEEL,
912 when, modifiers,
913 lp.x, lp.y,
914 0, 0, /* screenX, Y */
915 0 /* clickCount */, false /* popupTrigger */,
916 scrollType, scrollAmount,
917 wheelRotation, preciseWheelRotation));
918 }
919
920 /*
921 * Called by the delegate when a key is pressed.
922 */
923 @Override
924 public void notifyKeyEvent(int id, long when, int modifiers,
925 int keyCode, char keyChar, int keyLocation)
926 {
927 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
928 Component focusOwner = kfmPeer.getCurrentFocusOwner();
929
930 if (focusOwner == null) {
931 focusOwner = kfmPeer.getCurrentFocusedWindow();
932 if (focusOwner == null) {
933 focusOwner = this.getTarget();
934 }
935 }
936 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
937 }
938
939 // ---- UTILITY METHODS ---- //
940
941 private void activateDisplayListener() {
942 final GraphicsEnvironment ge =
943 GraphicsEnvironment.getLocalGraphicsEnvironment();
944 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
945 }
946
947 private void deactivateDisplayListener() {
948 final GraphicsEnvironment ge =
949 GraphicsEnvironment.getLocalGraphicsEnvironment();
950 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
951 }
952
953 private void postWindowStateChangedEvent(int newWindowState) {
954 if (getTarget() instanceof Frame) {
955 AWTAccessor.getFrameAccessor().setExtendedState(
956 (Frame)getTarget(), newWindowState);
957 }
958
959 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
960 WindowEvent.WINDOW_STATE_CHANGED,
961 windowState, newWindowState);
962 postEvent(stateChangedEvent);
963 windowState = newWindowState;
964
965 updateSecurityWarningVisibility();
966 }
967
968 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
969 // TODO: this method can be implemented in a more
970 // efficient way by forwarding to the delegate
971 GraphicsDevice gd = gc.getDevice();
972 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
973 GraphicsDevice[] gds = ge.getScreenDevices();
974 for (int i = 0; i < gds.length; i++) {
975 if (gds[i] == gd) {
976 return i;
977 }
978 }
979 // Should never happen if gc is a screen device config
980 return 0;
981 }
982
983 /*
984 * This method is called when window's graphics config is changed from
985 * the app code (e.g. when the window is made non-opaque) or when
986 * the window is moved to another screen by user.
987 *
988 * Returns true if the graphics config has been changed, false otherwise.
989 */
990 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
991 synchronized (getStateLock()) {
992 if (graphicsConfig == gc) {
993 return false;
994 }
995 // If window's graphics config is changed from the app code, the
996 // config correspond to the same device as before; when the window
997 // is moved by user, graphicsDevice is updated in notifyReshape().
998 // In either case, there's nothing to do with screenOn here
999 graphicsConfig = gc;
1000 }
1001 // SurfaceData is replaced later in updateGraphicsData()
1002 return true;
1003 }
1004
1005 /**
1006 * Returns true if the GraphicsDevice has been changed, false otherwise.
1007 */
1008 public boolean updateGraphicsDevice() {
1009 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
1010 synchronized (getStateLock()) {
1011 if (graphicsDevice == newGraphicsDevice) {
1012 return false;
1013 }
1014 graphicsDevice = newGraphicsDevice;
1015 }
1016
1017 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
1018
1019 if (!setGraphicsConfig(newGC)) return false;
1020
1021 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
1022 public void run() {
1023 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1024 }
1025 });
1026 return true;
1027 }
1028
1029 @Override
1030 public final void displayChanged() {
1031 updateGraphicsDevice();
1032 // Replace surface unconditionally, because internal state of the
1033 // GraphicsDevice could be changed.
1034 replaceSurfaceData();
1035 repaintPeer();
1036 }
1037
1038 @Override
1039 public final void paletteChanged() {
1040 // components do not need to react to this event.
1041 }
1042
1043 /*
1044 * May be called by delegate to provide SD to Java2D code.
1045 */
1046 public SurfaceData getSurfaceData() {
1047 synchronized (surfaceDataLock) {
1048 return surfaceData;
1049 }
1050 }
1051
1052 private void replaceSurfaceData() {
1053 replaceSurfaceData(true);
1054 }
1055
1056 private void replaceSurfaceData(final boolean blit) {
1057 synchronized (surfaceDataLock) {
1058 final SurfaceData oldData = getSurfaceData();
1059 surfaceData = platformWindow.replaceSurfaceData();
1060 final Rectangle size = getSize();
1061 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1062 clearBackground(size.width, size.height);
1063 }
1064
1065 if (blit) {
1066 blitSurfaceData(oldData, getSurfaceData());
1067 }
1068
1069 if (oldData != null && oldData != getSurfaceData()) {
1070 // TODO: drop oldData for D3D/WGL pipelines
1071 // This can only happen when this peer is being created
1072 oldData.flush();
1073 }
1074 }
1075 flushOnscreenGraphics();
1076 }
1077
1078 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1079 //TODO blit. proof-of-concept
1080 if (src != dst && src != null && dst != null
1081 && !(dst instanceof NullSurfaceData)
1082 && !(src instanceof NullSurfaceData)
1083 && src.getSurfaceType().equals(dst.getSurfaceType())
1084 && src.getDefaultScale() == dst.getDefaultScale()) {
1085 final Rectangle size = src.getBounds();
1086 final Blit blit = Blit.locate(src.getSurfaceType(),
1087 CompositeType.Src,
1088 dst.getSurfaceType());
1089 if (blit != null) {
1090 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1091 size.width, size.height);
1092 }
1093 }
1094 }
1095
1096 /**
1097 * Request the window insets from the delegate and compares it with the
1098 * current one. This method is mostly called by the delegate, e.g. when the
1099 * window state is changed and insets should be recalculated.
1100 * <p/>
1101 * This method may be called on the toolkit thread.
1102 */
1103 public final boolean updateInsets(final Insets newInsets) {
1104 synchronized (getStateLock()) {
1105 if (insets.equals(newInsets)) {
1106 return false;
1107 }
1108 insets = newInsets;
1109 }
1110 return true;
1111 }
1112
1113 public static LWWindowPeer getWindowUnderCursor() {
1114 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1115 }
1116
1117 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1118 return lastCommonMouseEventPeer;
1119 }
1120
1121 /*
1122 * Requests platform to set native focus on a frame/dialog.
1123 * In case of a simple window, triggers appropriate java focus change.
1124 */
1125 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1126 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1127 focusLog.fine("requesting native focus to " + this);
1128 }
1129
1130 if (!focusAllowedFor()) {
1131 focusLog.fine("focus is not allowed");
1132 return false;
1133 }
1134
1135 if (platformWindow.rejectFocusRequest(cause)) {
1136 return false;
1137 }
1138
1139 Window currentActive = KeyboardFocusManager.
1140 getCurrentKeyboardFocusManager().getActiveWindow();
1141
1142 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1143 getCurrentFocusedWindow();
1144
1145 // Make the owner active window.
1146 if (isSimpleWindow()) {
1147 LWWindowPeer owner = getOwnerFrameDialog(this);
1148
1149 // If owner is not natively active, request native
1150 // activation on it w/o sending events up to java.
1151 if (owner != null && !owner.platformWindow.isActive()) {
1152 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1153 focusLog.fine("requesting native focus to the owner " + owner);
1154 }
1155 LWWindowPeer currentActivePeer = (currentActive != null ?
1156 (LWWindowPeer)currentActive.getPeer() : null);
1157
1158 // Ensure the opposite is natively active and suppress sending events.
1159 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1160 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1161 focusLog.fine("the opposite is " + currentActivePeer);
1162 }
1163 currentActivePeer.skipNextFocusChange = true;
1164 }
1165 owner.skipNextFocusChange = true;
1166
1167 owner.platformWindow.requestWindowFocus();
1168 }
1169
1170 // DKFM will synthesize all the focus/activation events correctly.
1171 changeFocusedWindow(true, opposite);
1172 return true;
1173
1174 // In case the toplevel is active but not focused, change focus directly,
1175 // as requesting native focus on it will not have effect.
1176 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1177
1178 changeFocusedWindow(true, opposite);
1179 return true;
1180 }
1181
1182 return platformWindow.requestWindowFocus();
1183 }
1184
1185 protected boolean focusAllowedFor() {
1186 Window window = getTarget();
1187 // TODO: check if modal blocked
1188 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1189 }
1190
1191 private boolean isFocusableWindow() {
1192 boolean focusable = getTarget().isFocusableWindow();
1193 if (isSimpleWindow()) {
1194 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1195 if (ownerPeer == null) {
1196 return false;
1197 }
1198 return focusable && ownerPeer.getTarget().isFocusableWindow();
1199 }
1200 return focusable;
1201 }
1202
1203 public boolean isSimpleWindow() {
1204 Window window = getTarget();
1205 return !(window instanceof Dialog || window instanceof Frame);
1206 }
1207
1208 @Override
1209 public void emulateActivation(boolean activate) {
1210 changeFocusedWindow(activate, null);
1211 }
1212
1213 /*
1214 * Changes focused window on java level.
1215 */
1216 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1217 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1218 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1219 }
1220 if (skipNextFocusChange) {
1221 focusLog.fine("skipping focus change");
1222 skipNextFocusChange = false;
1223 return;
1224 }
1225 if (!isFocusableWindow() && becomesFocused) {
1226 focusLog.fine("the window is not focusable");
1227 return;
1228 }
1229 if (becomesFocused) {
1230 synchronized (getPeerTreeLock()) {
1231 if (blocker != null) {
1232 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1233 focusLog.finest("the window is blocked by " + blocker);
1234 }
1235 return;
1236 }
1237 }
1238 }
1239
1240 // Note, the method is not called:
1241 // - when the opposite (gaining focus) window is an owned/owner window.
1242 // - for a simple window in any case.
1243 if (!becomesFocused &&
1244 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1245 {
1246 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1247 focusLog.fine("ungrabbing on " + grabbingWindow);
1248 }
1249 // ungrab a simple window if its owner looses activation.
1250 grabbingWindow.ungrab();
1251 }
1252
1253 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1254 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1255
1256 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1257 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1258
1259 // TODO: wrap in SequencedEvent
1260 postEvent(windowEvent);
1261 }
1262
1263 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1264 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1265 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1266 owner = owner.getOwner();
1267 }
1268 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1269 }
1270
1271 /**
1272 * Returns the foremost modal blocker of this window, or null.
1273 */
1274 public LWWindowPeer getBlocker() {
1275 synchronized (getPeerTreeLock()) {
1276 LWWindowPeer blocker = this.blocker;
1277 if (blocker == null) {
1278 return null;
1279 }
1280 while (blocker.blocker != null) {
1281 blocker = blocker.blocker;
1282 }
1283 return blocker;
1284 }
1285 }
1286
1287 public void enterFullScreenMode() {
1288 platformWindow.enterFullScreenMode();
1289 updateSecurityWarningVisibility();
1290 }
1291
1292 public void exitFullScreenMode() {
1293 platformWindow.exitFullScreenMode();
1294 updateSecurityWarningVisibility();
1295 }
1296
1297 public long getLayerPtr() {
1298 return getPlatformWindow().getLayerPtr();
1299 }
1300
1301 void grab() {
1302 if (grabbingWindow != null && !isGrabbing()) {
1303 grabbingWindow.ungrab();
1304 }
1305 grabbingWindow = this;
1306 }
1307
1308 final void ungrab(boolean doPost) {
1309 if (isGrabbing()) {
1310 grabbingWindow = null;
1311 if (doPost) {
1312 postEvent(new UngrabEvent(getTarget()));
1313 }
1314 }
1315 }
1316
1317 void ungrab() {
1318 ungrab(true);
1319 }
1320
1321 private boolean isGrabbing() {
1322 return this == grabbingWindow;
1323 }
1324
1325 public PeerType getPeerType() {
1326 return peerType;
1327 }
1328
1329 public void updateSecurityWarningVisibility() {
1330 if (warningWindow == null) {
1331 return;
1332 }
1333
1334 if (!isVisible()) {
1335 return; // The warning window should already be hidden.
1336 }
1337
1338 boolean show = false;
1339
1340 if (!platformWindow.isFullScreenMode()) {
1341 if (isVisible()) {
1342 if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
1343 getTarget()) {
1344 show = true;
1345 }
1346
1347 if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
1348 show = true;
1349 }
1350 }
1351 }
1352
1353 warningWindow.setVisible(show, true);
1354 }
1355
1356 @Override
1357 public String toString() {
1358 return super.toString() + " [target is " + getTarget() + "]";
1359 }
1360 }