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 // Don't post ComponentMoved/Resized and Paint events
319 // until we've got a notification from the delegate
320 Rectangle cb = getCheckedBounds(x, y, w, h);
321 setBounds(cb.x, cb.y, cb.width, cb.height, op, false, false);
322 // Get updated bounds, so we don't have to handle 'op' here manually
323 Rectangle r = getBounds();
324 platformWindow.setBounds(r.x, r.y, r.width, r.height);
325 }
326
327 public Rectangle getCheckedBounds(Rectangle bounds) {
328 return getCheckedBounds(bounds.x, bounds.y, bounds.width, bounds.height);
329 }
330
331 public Rectangle getCheckedBounds(int x, int y, int w, int h) {
332
333 if (w < MINIMUM_WIDTH) {
334 w = MINIMUM_WIDTH;
335 }
336
337 if (h < MINIMUM_HEIGHT) {
338 h = MINIMUM_HEIGHT;
339 }
340
341 final int maxW = getLWGC().getMaxTextureWidth();
342 final int maxH = getLWGC().getMaxTextureHeight();
343
344 if (w > maxW) {
345 w = maxW;
346 }
347 if (h > maxH) {
348 h = maxH;
349 }
350
351 return new Rectangle(x, y, w, h);
352 }
353
354 @Override
355 public Point getLocationOnScreen() {
356 return platformWindow.getLocationOnScreen();
357 }
358
359 /**
360 * Overridden from LWContainerPeer to return the correct insets.
361 * Insets are queried from the delegate and are kept up to date by
362 * requiering when needed (i.e. when the window geometry is changed).
363 */
364 @Override
365 public Insets getInsets() {
366 synchronized (getStateLock()) {
367 return insets;
368 }
369 }
370
371 @Override
372 public FontMetrics getFontMetrics(Font f) {
373 // TODO: check for "use platform metrics" settings
374 return platformWindow.getFontMetrics(f);
375 }
376
377 @Override
378 public void toFront() {
379 platformWindow.toFront();
380 }
381
382 @Override
383 public void toBack() {
384 platformWindow.toBack();
385 }
386
387 @Override
388 public void setZOrder(ComponentPeer above) {
389 throw new RuntimeException("not implemented");
390 }
391
392 @Override
393 public void updateAlwaysOnTopState() {
394 platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
395 }
396
397 @Override
398 public void updateFocusableWindowState() {
399 platformWindow.updateFocusableWindowState();
400 }
401
402 @Override
403 public void setModalBlocked(Dialog blocker, boolean blocked) {
404 synchronized (getPeerTreeLock()) {
405 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
406 }
407
408 platformWindow.setModalBlocked(blocked);
409 }
410
411 @Override
412 public void updateMinimumSize() {
413 final Dimension min;
414 if (getTarget().isMinimumSizeSet()) {
415 min = getTarget().getMinimumSize();
416 min.width = Math.max(min.width, MINIMUM_WIDTH);
417 min.height = Math.max(min.height, MINIMUM_HEIGHT);
418 } else {
419 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
420 }
421
422 final Dimension max;
423 if (getTarget().isMaximumSizeSet()) {
424 max = getTarget().getMaximumSize();
425 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
426 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
427 } else {
428 max = new Dimension(getLWGC().getMaxTextureWidth(),
429 getLWGC().getMaxTextureHeight());
430 }
431
432 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
433 }
434
435 @Override
436 public void updateIconImages() {
437 getPlatformWindow().updateIconImages();
438 }
439
440 @Override
441 public void setOpacity(float opacity) {
442 getPlatformWindow().setOpacity(opacity);
443 repaintPeer();
444 }
445
446 @Override
447 public final void setOpaque(final boolean isOpaque) {
448 if (this.isOpaque != isOpaque) {
449 this.isOpaque = isOpaque;
450 updateOpaque();
451 }
452 }
453
454 private void updateOpaque() {
455 getPlatformWindow().setOpaque(!isTranslucent());
456 replaceSurfaceData(false);
457 repaintPeer();
458 }
459
460 @Override
461 public void updateWindow() {
462 }
463
464 public final boolean isTextured() {
465 return textured;
466 }
467
468 public final void setTextured(final boolean isTextured) {
469 textured = isTextured;
470 }
471
472 public final boolean isTranslucent() {
473 synchronized (getStateLock()) {
474 /*
475 * Textured window is a special case of translucent window.
476 * The difference is only in nswindow background. So when we set
477 * texture property our peer became fully translucent. It doesn't
478 * fill background, create non opaque backbuffers and layer etc.
479 */
480 return !isOpaque || isShaped() || isTextured();
481 }
482 }
483
484 @Override
485 final void applyShapeImpl(final Region shape) {
486 super.applyShapeImpl(shape);
487 updateOpaque();
488 }
489
490 @Override
491 public void repositionSecurityWarning() {
492 if (warningWindow != null) {
493 AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
494 Window target = getTarget();
495 int x = compAccessor.getX(target);
496 int y = compAccessor.getY(target);
497 int width = compAccessor.getWidth(target);
498 int height = compAccessor.getHeight(target);
499 warningWindow.reposition(x, y, width, height);
500 }
501 }
502
503 // ---- FRAME PEER METHODS ---- //
504
505 @Override // FramePeer and DialogPeer
506 public void setTitle(String title) {
507 platformWindow.setTitle(title == null ? "" : title);
508 }
509
510 @Override
511 public void setMenuBar(MenuBar mb) {
512 platformWindow.setMenuBar(mb);
513 }
514
515 @Override // FramePeer and DialogPeer
516 public void setResizable(boolean resizable) {
517 platformWindow.setResizable(resizable);
518 }
519
520 @Override
521 public void setState(int state) {
522 platformWindow.setWindowState(state);
523 }
524
525 @Override
526 public int getState() {
527 return windowState;
528 }
529
530 @Override
531 public void setMaximizedBounds(Rectangle bounds) {
532 // TODO: not implemented
533 }
534
535 @Override
536 public void setBoundsPrivate(int x, int y, int width, int height) {
537 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
538 }
539
540 @Override
541 public Rectangle getBoundsPrivate() {
542 throw new RuntimeException("not implemented");
543 }
544
545 // ---- DIALOG PEER METHODS ---- //
546
547 @Override
548 public void blockWindows(List<Window> windows) {
549 //TODO: LWX will probably need some collectJavaToplevels to speed this up
550 for (Window w : windows) {
551 WindowPeer wp = (WindowPeer)w.getPeer();
552 if (wp != null) {
553 wp.setModalBlocked((Dialog)getTarget(), true);
554 }
555 }
556 }
557
558 // ---- PEER NOTIFICATIONS ---- //
559
560 @Override
561 public void notifyIconify(boolean iconify) {
562 //The toplevel target is Frame and states are applicable to it.
563 //Otherwise, the target is Window and it don't have state property.
564 //Hopefully, no such events are posted in the queue so consider the
565 //target as Frame in all cases.
566
567 // REMIND: should we send it anyway if the state not changed since last
568 // time?
569 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
570 iconify ? WindowEvent.WINDOW_ICONIFIED
571 : WindowEvent.WINDOW_DEICONIFIED);
572 postEvent(iconifyEvent);
573
574 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
575 postWindowStateChangedEvent(newWindowState);
576
577 // REMIND: RepaintManager doesn't repaint iconified windows and
578 // hence ignores any repaint request during deiconification.
579 // So, we need to repaint window explicitly when it becomes normal.
580 if (!iconify) {
581 repaintPeer();
582 }
583 }
584
585 @Override
586 public void notifyZoom(boolean isZoomed) {
587 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
588 postWindowStateChangedEvent(newWindowState);
589 }
590
591 /**
592 * Called by the {@code PlatformWindow} when any part of the window should
593 * be repainted.
594 */
595 @Override
596 public void notifyExpose(final Rectangle r) {
597 repaintPeer(r);
598 }
599
600 /**
601 * Called by the {@code PlatformWindow} when this window is moved/resized by
602 * user or window insets are changed. There's no notifyReshape() in
603 * LWComponentPeer as the only components which could be resized by user are
604 * top-level windows.
605 */
606 @Override
607 public void notifyReshape(int x, int y, int w, int h) {
608 final boolean moved;
609 final boolean resized;
610 final boolean invalid = updateInsets(platformWindow.getInsets());
611 synchronized (getStateLock()) {
612 moved = (x != sysX) || (y != sysY);
613 resized = (w != sysW) || (h != sysH);
614 sysX = x;
615 sysY = y;
616 sysW = w;
617 sysH = h;
618 }
619
620 // Check if anything changed
621 if (!moved && !resized && !invalid) {
622 return;
623 }
624 // First, update peer's bounds
625 setBounds(x, y, w, h, SET_BOUNDS, false, false);
626
627 // Second, update the graphics config and surface data
628 final boolean isNewDevice = updateGraphicsDevice();
629 if (resized || isNewDevice) {
630 replaceSurfaceData();
631 }
632
633 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
634 if (moved || invalid) {
635 handleMove(x, y, true);
636 }
637 if (resized || invalid || isNewDevice) {
638 handleResize(w, h, true);
639 repaintPeer();
640 }
641
642 repositionSecurityWarning();
643 }
644
645 private void clearBackground(final int w, final int h) {
646 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
647 getFont());
648 if (g != null) {
649 try {
650 if (g instanceof Graphics2D) {
651 ((Graphics2D) g).setComposite(AlphaComposite.Src);
652 }
653 if (isTranslucent()) {
654 g.setColor(nonOpaqueBackground);
655 g.fillRect(0, 0, w, h);
656 }
657 if (!isTextured()) {
658 if (g instanceof SunGraphics2D) {
659 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
660 }
661 g.setColor(getBackground());
662 g.fillRect(0, 0, w, h);
663 }
664 } finally {
665 g.dispose();
666 }
667 }
668 }
669
670 @Override
671 public void notifyUpdateCursor() {
672 getLWToolkit().getCursorManager().updateCursorLater(this);
673 }
674
675 @Override
676 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
677 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
678 changeFocusedWindow(activation, oppositeWindow);
679 }
680
681 // MouseDown in non-client area
682 @Override
683 public void notifyNCMouseDown() {
684 // Ungrab except for a click on a Dialog with the grabbing owner
685 if (grabbingWindow != null &&
686 grabbingWindow != getOwnerFrameDialog(this))
687 {
688 grabbingWindow.ungrab();
689 }
690 }
691
692 // ---- EVENTS ---- //
693
694 /*
695 * Called by the delegate to dispatch the event to Java. Event
696 * coordinates are relative to non-client window are, i.e. the top-left
697 * point of the client area is (insets.top, insets.left).
698 */
699 @Override
700 public void notifyMouseEvent(int id, long when, int button,
701 int x, int y, int screenX, int screenY,
702 int modifiers, int clickCount, boolean popupTrigger,
703 byte[] bdata)
704 {
705 // TODO: fill "bdata" member of AWTEvent
706 Rectangle r = getBounds();
707 // findPeerAt() expects parent coordinates
708 LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
709
710 if (id == MouseEvent.MOUSE_EXITED) {
711 isMouseOver = false;
712 if (lastMouseEventPeer != null) {
713 if (lastMouseEventPeer.isEnabled()) {
714 Point lp = lastMouseEventPeer.windowToLocal(x, y,
715 this);
716 Component target = lastMouseEventPeer.getTarget();
717 postMouseExitedEvent(target, when, modifiers, lp,
718 screenX, screenY, clickCount, popupTrigger, button);
719 }
720
721 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
722 // to a peer from another window. So we must first check if this peer is
723 // the same as lastWindowPeer
724 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
725 lastCommonMouseEventPeer = null;
726 }
727 lastMouseEventPeer = null;
728 }
729 } else if(id == MouseEvent.MOUSE_ENTERED) {
730 isMouseOver = true;
731 if (targetPeer != null) {
732 if (targetPeer.isEnabled()) {
733 Point lp = targetPeer.windowToLocal(x, y, this);
734 Component target = targetPeer.getTarget();
735 postMouseEnteredEvent(target, when, modifiers, lp,
736 screenX, screenY, clickCount, popupTrigger, button);
737 }
738 lastCommonMouseEventPeer = targetPeer;
739 lastMouseEventPeer = targetPeer;
740 }
741 } else {
742 PlatformWindow topmostPlatforWindow =
743 platformWindow.getTopmostPlatformWindowUnderMouse();
744
745 LWWindowPeer topmostWindowPeer =
746 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
747
748 // topmostWindowPeer == null condition is added for the backward
749 // compatibility with applets. It can be removed when the
750 // getTopmostPlatformWindowUnderMouse() method will be properly
751 // implemented in CPlatformEmbeddedFrame class
752 if (topmostWindowPeer == this || topmostWindowPeer == null) {
753 generateMouseEnterExitEventsForComponents(when, button, x, y,
754 screenX, screenY, modifiers, clickCount, popupTrigger,
755 targetPeer);
756 } else {
757 LWComponentPeer topmostTargetPeer =
758 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
759 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
760 screenX, screenY, modifiers, clickCount, popupTrigger,
761 topmostTargetPeer);
762 }
763
764 // TODO: fill "bdata" member of AWTEvent
765
766 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
767 int otherButtonsPressed = modifiers & ~eventButtonMask;
768
769 // For pressed/dragged/released events OS X treats other
770 // mouse buttons as if they were BUTTON2, so we do the same
771 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
772
773 // MOUSE_ENTERED/EXITED are generated for the components strictly under
774 // mouse even when dragging. That's why we first update lastMouseEventPeer
775 // based on initial targetPeer value and only then recalculate targetPeer
776 // for MOUSE_DRAGGED/RELEASED events
777 if (id == MouseEvent.MOUSE_PRESSED) {
778
779 // Ungrab only if this window is not an owned window of the grabbing one.
780 if (!isGrabbing() && grabbingWindow != null &&
781 grabbingWindow != getOwnerFrameDialog(this))
782 {
783 grabbingWindow.ungrab();
784 }
785 if (otherButtonsPressed == 0) {
786 mouseClickButtons = eventButtonMask;
787 } else {
788 mouseClickButtons |= eventButtonMask;
789 }
790
791 // The window should be focused on mouse click. If it gets activated by the native platform,
792 // this request will be no op. It will take effect when:
793 // 1. A simple not focused window is clicked.
794 // 2. An active but not focused owner frame/dialog is clicked.
795 // The mouse event then will trigger a focus request "in window" to the component, so the window
796 // should gain focus before.
797 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
798
799 mouseDownTarget[targetIdx] = targetPeer;
800 } else if (id == MouseEvent.MOUSE_DRAGGED) {
801 // Cocoa dragged event has the information about which mouse
802 // button is being dragged. Use it to determine the peer that
803 // should receive the dragged event.
804 targetPeer = mouseDownTarget[targetIdx];
805 mouseClickButtons &= ~modifiers;
806 } else if (id == MouseEvent.MOUSE_RELEASED) {
807 // TODO: currently, mouse released event goes to the same component
808 // that received corresponding mouse pressed event. For most cases,
809 // it's OK, however, we need to make sure that our behavior is consistent
810 // with 1.6 for cases where component in question have been
811 // hidden/removed in between of mouse pressed/released events.
812 targetPeer = mouseDownTarget[targetIdx];
813
814 if ((modifiers & eventButtonMask) == 0) {
815 mouseDownTarget[targetIdx] = null;
816 }
817
818 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
819 }
820
821 if (targetPeer == null) {
822 //TODO This can happen if this window is invisible. this is correct behavior in this case?
823 targetPeer = this;
824 }
825
826
827 Point lp = targetPeer.windowToLocal(x, y, this);
828 if (targetPeer.isEnabled()) {
829 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
830 when, modifiers, lp.x, lp.y,
831 screenX, screenY, clickCount,
832 popupTrigger, button);
833 postEvent(event);
834 }
835
836 if (id == MouseEvent.MOUSE_RELEASED) {
837 if ((mouseClickButtons & eventButtonMask) != 0
838 && targetPeer.isEnabled()) {
839 postEvent(new MouseEvent(targetPeer.getTarget(),
840 MouseEvent.MOUSE_CLICKED,
841 when, modifiers,
842 lp.x, lp.y, screenX, screenY,
843 clickCount, popupTrigger, button));
844 }
845 mouseClickButtons &= ~eventButtonMask;
846 }
847 }
848 notifyUpdateCursor();
849 }
850
851 private void generateMouseEnterExitEventsForComponents(long when,
852 int button, int x, int y, int screenX, int screenY,
853 int modifiers, int clickCount, boolean popupTrigger,
854 LWComponentPeer targetPeer) {
855
856 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
857 return;
858 }
859
860 // Generate Mouse Exit for components
861 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
862 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
863 Component target = lastMouseEventPeer.getTarget();
864 postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
865 clickCount, popupTrigger, button);
866 }
867 lastCommonMouseEventPeer = targetPeer;
868 lastMouseEventPeer = targetPeer;
869
870 // Generate Mouse Enter for components
871 if (targetPeer != null && targetPeer.isEnabled()) {
872 Point newp = targetPeer.windowToLocal(x, y, this);
873 Component target = targetPeer.getTarget();
874 postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
875 }
876 }
877
878 private void postMouseEnteredEvent(Component target, long when, int modifiers,
879 Point loc, int xAbs, int yAbs,
880 int clickCount, boolean popupTrigger, int button) {
881
882 updateSecurityWarningVisibility();
883
884 postEvent(new MouseEvent(target,
885 MouseEvent.MOUSE_ENTERED,
886 when, modifiers,
887 loc.x, loc.y, xAbs, yAbs,
888 clickCount, popupTrigger, button));
889 }
890
891 private void postMouseExitedEvent(Component target, long when, int modifiers,
892 Point loc, int xAbs, int yAbs,
893 int clickCount, boolean popupTrigger, int button) {
894
895 updateSecurityWarningVisibility();
896
897 postEvent(new MouseEvent(target,
898 MouseEvent.MOUSE_EXITED,
899 when, modifiers,
900 loc.x, loc.y, xAbs, yAbs,
901 clickCount, popupTrigger, button));
902 }
903
904 @Override
905 public void notifyMouseWheelEvent(long when, int x, int y, int modifiers,
906 int scrollType, int scrollAmount,
907 int wheelRotation, double preciseWheelRotation,
908 byte[] bdata)
909 {
910 // TODO: could we just use the last mouse event target here?
911 Rectangle r = getBounds();
912 // findPeerAt() expects parent coordinates
913 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
914 if (targetPeer == null || !targetPeer.isEnabled()) {
915 return;
916 }
917
918 Point lp = targetPeer.windowToLocal(x, y, this);
919 // TODO: fill "bdata" member of AWTEvent
920 // TODO: screenX/screenY
921 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
922 MouseEvent.MOUSE_WHEEL,
923 when, modifiers,
924 lp.x, lp.y,
925 0, 0, /* screenX, Y */
926 0 /* clickCount */, false /* popupTrigger */,
927 scrollType, scrollAmount,
928 wheelRotation, preciseWheelRotation));
929 }
930
931 /*
932 * Called by the delegate when a key is pressed.
933 */
934 @Override
935 public void notifyKeyEvent(int id, long when, int modifiers,
936 int keyCode, char keyChar, int keyLocation)
937 {
938 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
939 Component focusOwner = kfmPeer.getCurrentFocusOwner();
940
941 if (focusOwner == null) {
942 focusOwner = kfmPeer.getCurrentFocusedWindow();
943 if (focusOwner == null) {
944 focusOwner = this.getTarget();
945 }
946 }
947
948 KeyEvent keyEvent = new KeyEvent(focusOwner, id, when, modifiers,
949 keyCode, keyChar, keyLocation);
950 AWTAccessor.getKeyEventAccessor().setExtendedKeyCode(keyEvent,
951 ExtendedKeyCodes.getExtendedKeyCodeForChar(keyChar));
952 postEvent(keyEvent);
953 }
954
955 // ---- UTILITY METHODS ---- //
956
957 private void activateDisplayListener() {
958 final GraphicsEnvironment ge =
959 GraphicsEnvironment.getLocalGraphicsEnvironment();
960 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
961 }
962
963 private void deactivateDisplayListener() {
964 final GraphicsEnvironment ge =
965 GraphicsEnvironment.getLocalGraphicsEnvironment();
966 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
967 }
968
969 private void postWindowStateChangedEvent(int newWindowState) {
970 if (getTarget() instanceof Frame) {
971 AWTAccessor.getFrameAccessor().setExtendedState(
972 (Frame)getTarget(), newWindowState);
973 }
974
975 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
976 WindowEvent.WINDOW_STATE_CHANGED,
977 windowState, newWindowState);
978 postEvent(stateChangedEvent);
979 windowState = newWindowState;
980
981 updateSecurityWarningVisibility();
982 }
983
984 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
985 // TODO: this method can be implemented in a more
986 // efficient way by forwarding to the delegate
987 GraphicsDevice gd = gc.getDevice();
988 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
989 GraphicsDevice[] gds = ge.getScreenDevices();
990 for (int i = 0; i < gds.length; i++) {
991 if (gds[i] == gd) {
992 return i;
993 }
994 }
995 // Should never happen if gc is a screen device config
996 return 0;
997 }
998
999 /*
1000 * This method is called when window's graphics config is changed from
1001 * the app code (e.g. when the window is made non-opaque) or when
1002 * the window is moved to another screen by user.
1003 *
1004 * Returns true if the graphics config has been changed, false otherwise.
1005 */
1006 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
1007 synchronized (getStateLock()) {
1008 if (graphicsConfig == gc) {
1009 return false;
1010 }
1011 // If window's graphics config is changed from the app code, the
1012 // config correspond to the same device as before; when the window
1013 // is moved by user, graphicsDevice is updated in notifyReshape().
1014 // In either case, there's nothing to do with screenOn here
1015 graphicsConfig = gc;
1016 }
1017 // SurfaceData is replaced later in updateGraphicsData()
1018 return true;
1019 }
1020
1021 /**
1022 * Returns true if the GraphicsDevice has been changed, false otherwise.
1023 */
1024 public boolean updateGraphicsDevice() {
1025 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
1026 synchronized (getStateLock()) {
1027 if (graphicsDevice == newGraphicsDevice) {
1028 return false;
1029 }
1030 graphicsDevice = newGraphicsDevice;
1031 }
1032
1033 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
1034
1035 if (!setGraphicsConfig(newGC)) return false;
1036
1037 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
1038 public void run() {
1039 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1040 }
1041 });
1042 return true;
1043 }
1044
1045 @Override
1046 public final void displayChanged() {
1047 updateGraphicsDevice();
1048 // Replace surface unconditionally, because internal state of the
1049 // GraphicsDevice could be changed.
1050 replaceSurfaceData();
1051 repaintPeer();
1052 }
1053
1054 @Override
1055 public final void paletteChanged() {
1056 // components do not need to react to this event.
1057 }
1058
1059 /*
1060 * May be called by delegate to provide SD to Java2D code.
1061 */
1062 public SurfaceData getSurfaceData() {
1063 synchronized (surfaceDataLock) {
1064 return surfaceData;
1065 }
1066 }
1067
1068 private void replaceSurfaceData() {
1069 replaceSurfaceData(true);
1070 }
1071
1072 private void replaceSurfaceData(final boolean blit) {
1073 synchronized (surfaceDataLock) {
1074 final SurfaceData oldData = getSurfaceData();
1075 surfaceData = platformWindow.replaceSurfaceData();
1076 final Rectangle size = getSize();
1077 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1078 clearBackground(size.width, size.height);
1079 }
1080
1081 if (blit) {
1082 blitSurfaceData(oldData, getSurfaceData());
1083 }
1084
1085 if (oldData != null && oldData != getSurfaceData()) {
1086 // TODO: drop oldData for D3D/WGL pipelines
1087 // This can only happen when this peer is being created
1088 oldData.flush();
1089 }
1090 }
1091 flushOnscreenGraphics();
1092 }
1093
1094 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1095 //TODO blit. proof-of-concept
1096 if (src != dst && src != null && dst != null
1097 && !(dst instanceof NullSurfaceData)
1098 && !(src instanceof NullSurfaceData)
1099 && src.getSurfaceType().equals(dst.getSurfaceType())
1100 && src.getDefaultScale() == dst.getDefaultScale()) {
1101 final Rectangle size = src.getBounds();
1102 final Blit blit = Blit.locate(src.getSurfaceType(),
1103 CompositeType.Src,
1104 dst.getSurfaceType());
1105 if (blit != null) {
1106 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1107 size.width, size.height);
1108 }
1109 }
1110 }
1111
1112 /**
1113 * Request the window insets from the delegate and compares it with the
1114 * current one. This method is mostly called by the delegate, e.g. when the
1115 * window state is changed and insets should be recalculated.
1116 * <p/>
1117 * This method may be called on the toolkit thread.
1118 */
1119 public final boolean updateInsets(final Insets newInsets) {
1120 synchronized (getStateLock()) {
1121 if (insets.equals(newInsets)) {
1122 return false;
1123 }
1124 insets = newInsets;
1125 }
1126 return true;
1127 }
1128
1129 public static LWWindowPeer getWindowUnderCursor() {
1130 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1131 }
1132
1133 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1134 return lastCommonMouseEventPeer;
1135 }
1136
1137 /*
1138 * Requests platform to set native focus on a frame/dialog.
1139 * In case of a simple window, triggers appropriate java focus change.
1140 */
1141 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1142 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1143 focusLog.fine("requesting native focus to " + this);
1144 }
1145
1146 if (!focusAllowedFor()) {
1147 focusLog.fine("focus is not allowed");
1148 return false;
1149 }
1150
1151 if (platformWindow.rejectFocusRequest(cause)) {
1152 return false;
1153 }
1154
1155 Window currentActive = KeyboardFocusManager.
1156 getCurrentKeyboardFocusManager().getActiveWindow();
1157
1158 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1159 getCurrentFocusedWindow();
1160
1161 // Make the owner active window.
1162 if (isSimpleWindow()) {
1163 LWWindowPeer owner = getOwnerFrameDialog(this);
1164
1165 // If owner is not natively active, request native
1166 // activation on it w/o sending events up to java.
1167 if (owner != null && !owner.platformWindow.isActive()) {
1168 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1169 focusLog.fine("requesting native focus to the owner " + owner);
1170 }
1171 LWWindowPeer currentActivePeer = (currentActive != null ?
1172 (LWWindowPeer)currentActive.getPeer() : null);
1173
1174 // Ensure the opposite is natively active and suppress sending events.
1175 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1176 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1177 focusLog.fine("the opposite is " + currentActivePeer);
1178 }
1179 currentActivePeer.skipNextFocusChange = true;
1180 }
1181 owner.skipNextFocusChange = true;
1182
1183 owner.platformWindow.requestWindowFocus();
1184 }
1185
1186 // DKFM will synthesize all the focus/activation events correctly.
1187 changeFocusedWindow(true, opposite);
1188 return true;
1189
1190 // In case the toplevel is active but not focused, change focus directly,
1191 // as requesting native focus on it will not have effect.
1192 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1193
1194 changeFocusedWindow(true, opposite);
1195 return true;
1196 }
1197
1198 return platformWindow.requestWindowFocus();
1199 }
1200
1201 protected boolean focusAllowedFor() {
1202 Window window = getTarget();
1203 // TODO: check if modal blocked
1204 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1205 }
1206
1207 private boolean isFocusableWindow() {
1208 boolean focusable = getTarget().isFocusableWindow();
1209 if (isSimpleWindow()) {
1210 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1211 if (ownerPeer == null) {
1212 return false;
1213 }
1214 return focusable && ownerPeer.getTarget().isFocusableWindow();
1215 }
1216 return focusable;
1217 }
1218
1219 public boolean isSimpleWindow() {
1220 Window window = getTarget();
1221 return !(window instanceof Dialog || window instanceof Frame);
1222 }
1223
1224 @Override
1225 public void emulateActivation(boolean activate) {
1226 changeFocusedWindow(activate, null);
1227 }
1228
1229 /*
1230 * Changes focused window on java level.
1231 */
1232 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1233 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1234 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1235 }
1236 if (skipNextFocusChange) {
1237 focusLog.fine("skipping focus change");
1238 skipNextFocusChange = false;
1239 return;
1240 }
1241 if (!isFocusableWindow() && becomesFocused) {
1242 focusLog.fine("the window is not focusable");
1243 return;
1244 }
1245 if (becomesFocused) {
1246 synchronized (getPeerTreeLock()) {
1247 if (blocker != null) {
1248 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1249 focusLog.finest("the window is blocked by " + blocker);
1250 }
1251 return;
1252 }
1253 }
1254 }
1255
1256 // Note, the method is not called:
1257 // - when the opposite (gaining focus) window is an owned/owner window.
1258 // - for a simple window in any case.
1259 if (!becomesFocused &&
1260 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1261 {
1262 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1263 focusLog.fine("ungrabbing on " + grabbingWindow);
1264 }
1265 // ungrab a simple window if its owner looses activation.
1266 grabbingWindow.ungrab();
1267 }
1268
1269 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1270 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1271
1272 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1273 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1274
1275 // TODO: wrap in SequencedEvent
1276 postEvent(windowEvent);
1277 }
1278
1279 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1280 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1281 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1282 owner = owner.getOwner();
1283 }
1284 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1285 }
1286
1287 /**
1288 * Returns the foremost modal blocker of this window, or null.
1289 */
1290 public LWWindowPeer getBlocker() {
1291 synchronized (getPeerTreeLock()) {
1292 LWWindowPeer blocker = this.blocker;
1293 if (blocker == null) {
1294 return null;
1295 }
1296 while (blocker.blocker != null) {
1297 blocker = blocker.blocker;
1298 }
1299 return blocker;
1300 }
1301 }
1302
1303 public void enterFullScreenMode() {
1304 platformWindow.enterFullScreenMode();
1305 updateSecurityWarningVisibility();
1306 }
1307
1308 public void exitFullScreenMode() {
1309 platformWindow.exitFullScreenMode();
1310 updateSecurityWarningVisibility();
1311 }
1312
1313 public long getLayerPtr() {
1314 return getPlatformWindow().getLayerPtr();
1315 }
1316
1317 void grab() {
1318 if (grabbingWindow != null && !isGrabbing()) {
1319 grabbingWindow.ungrab();
1320 }
1321 grabbingWindow = this;
1322 }
1323
1324 final void ungrab(boolean doPost) {
1325 if (isGrabbing()) {
1326 grabbingWindow = null;
1327 if (doPost) {
1328 postEvent(new UngrabEvent(getTarget()));
1329 }
1330 }
1331 }
1332
1333 void ungrab() {
1334 ungrab(true);
1335 }
1336
1337 private boolean isGrabbing() {
1338 return this == grabbingWindow;
1339 }
1340
1341 public PeerType getPeerType() {
1342 return peerType;
1343 }
1344
1345 public void updateSecurityWarningVisibility() {
1346 if (warningWindow == null) {
1347 return;
1348 }
1349
1350 if (!isVisible()) {
1351 return; // The warning window should already be hidden.
1352 }
1353
1354 boolean show = false;
1355
1356 if (!platformWindow.isFullScreenMode()) {
1357 if (isVisible()) {
1358 if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
1359 getTarget()) {
1360 show = true;
1361 }
1362
1363 if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
1364 show = true;
1365 }
1366 }
1367 }
1368
1369 warningWindow.setVisible(show, true);
1370 }
1371
1372 @Override
1373 public String toString() {
1374 return super.toString() + " [target is " + getTarget() + "]";
1375 }
1376 }