1 /*
2 * Copyright (c) 2011, 2012, 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.image.BufferedImage;
31 import java.awt.peer.*;
32 import java.util.List;
33
34 import javax.swing.*;
35
36 import sun.awt.*;
37 import sun.java2d.*;
38 import sun.java2d.loops.Blit;
39 import sun.java2d.loops.CompositeType;
40 import sun.java2d.pipe.Region;
41 import sun.util.logging.PlatformLogger;
42
43 public class LWWindowPeer
44 extends LWContainerPeer<Window, JComponent>
45 implements WindowPeer, FramePeer, DialogPeer, FullScreenCapable
46 {
47 public static enum PeerType {
48 SIMPLEWINDOW,
49 FRAME,
50 DIALOG,
51 EMBEDDEDFRAME
52 }
53
54 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
55
56 private PlatformWindow platformWindow;
57
58 // Window bounds reported by the native system (as opposed to
59 // regular bounds inherited from LWComponentPeer which are
60 // requested by user and may haven't been applied yet because
61 // of asynchronous requests to the windowing system)
62 private int sysX;
63 private int sysY;
64 private int sysW;
65 private int sysH;
66
67 private static final int MINIMUM_WIDTH = 1;
68 private static final int MINIMUM_HEIGHT = 1;
69
70 private Insets insets = new Insets(0, 0, 0, 0);
71
72 private GraphicsDevice graphicsDevice;
73 private GraphicsConfiguration graphicsConfig;
74
75 private SurfaceData surfaceData;
76 private final Object surfaceDataLock = new Object();
77
78 private int backBufferCount;
79 private BufferCapabilities backBufferCaps;
80
81 // The back buffer is used for two purposes:
82 // 1. To render all the lightweight peers
83 // 2. To provide user with a BufferStrategy
84 // Need to check if a single back buffer can be used for both
85 // TODO: VolatileImage
86 // private VolatileImage backBuffer;
87 private volatile BufferedImage backBuffer;
88
89 private volatile int windowState = Frame.NORMAL;
90
91 // check that the mouse is over the window
92 private volatile boolean isMouseOver = false;
93
94 // A peer where the last mouse event came to. Used by cursor manager to
95 // find the component under cursor
96 private static volatile LWComponentPeer lastCommonMouseEventPeer = null;
97
98 // A peer where the last mouse event came to. Used to generate
99 // MOUSE_ENTERED/EXITED notifications
100 private volatile LWComponentPeer lastMouseEventPeer;
101
102 // Peers where all dragged/released events should come to,
103 // depending on what mouse button is being dragged according to Cocoa
104 private static LWComponentPeer mouseDownTarget[] = new LWComponentPeer[3];
105
106 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
107 // on MOUSE_RELEASE. Click events are only generated if there were no drag
108 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
109 private static int mouseClickButtons = 0;
110
111 private volatile boolean isOpaque = true;
112
113 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
114
115 private static LWWindowPeer grabbingWindow;
116
117 private volatile boolean skipNextFocusChange;
118
119 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
120
121 private volatile boolean textured;
122
123 /**
124 * Current modal blocker or null.
125 *
126 * Synchronization: peerTreeLock.
127 */
128 private LWWindowPeer blocker;
129
130 public LWWindowPeer(Window target, PlatformComponent platformComponent,
131 PlatformWindow platformWindow)
132 {
133 super(target, platformComponent);
134 this.platformWindow = platformWindow;
135
136 Window owner = target.getOwner();
137 LWWindowPeer ownerPeer = (owner != null) ? (LWWindowPeer)owner.getPeer() : null;
138 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
139
140 // The delegate.initialize() needs a non-null GC on X11.
141 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
142 synchronized (getStateLock()) {
143 // graphicsConfig should be updated according to the real window
144 // bounds when the window is shown, see 4868278
145 this.graphicsConfig = gc;
146 }
147
148 if (!target.isFontSet()) {
149 target.setFont(DEFAULT_FONT);
150 }
151
152 if (!target.isBackgroundSet()) {
153 target.setBackground(SystemColor.window);
154 } else {
155 // first we check if user provided alpha for background. This is
156 // similar to what Apple's Java do.
157 // Since JDK7 we should rely on setOpacity() only.
158 // this.opacity = c.getAlpha();
159 }
160
161 if (!target.isForegroundSet()) {
162 target.setForeground(SystemColor.windowText);
163 // we should not call setForeground because it will call a repaint
164 // which the peer may not be ready to do yet.
165 }
166
167 platformWindow.initialize(target, this, ownerDelegate);
168 }
169
170 @Override
171 void initializeImpl() {
172 super.initializeImpl();
173 if (getTarget() instanceof Frame) {
174 setTitle(((Frame) getTarget()).getTitle());
175 setState(((Frame) getTarget()).getExtendedState());
176 } else if (getTarget() instanceof Dialog) {
177 setTitle(((Dialog) getTarget()).getTitle());
178 }
179
180 setAlwaysOnTop(getTarget().isAlwaysOnTop());
181 updateMinimumSize();
182
183 final Shape shape = getTarget().getShape();
184 if (shape != null) {
185 applyShape(Region.getInstance(shape, null));
186 }
187
188 final float opacity = getTarget().getOpacity();
189 if (opacity < 1.0f) {
190 setOpacity(opacity);
191 }
192
193 setOpaque(getTarget().isOpaque());
194
195 updateInsets(platformWindow.getInsets());
196 if (getSurfaceData() == null) {
197 replaceSurfaceData(false);
198 }
199 }
200
201 // Just a helper method
202 public PlatformWindow getPlatformWindow() {
203 return platformWindow;
204 }
205
206 @Override
207 protected LWWindowPeer getWindowPeerOrSelf() {
208 return this;
209 }
210
211 @Override
212 protected void initializeContainerPeer() {
213 // No-op as LWWindowPeer doesn't have any containerPeer
214 }
215
216 // ---- PEER METHODS ---- //
217
218 @Override
219 protected void disposeImpl() {
220 SurfaceData oldData = getSurfaceData();
221 synchronized (surfaceDataLock){
222 surfaceData = null;
223 }
224 if (oldData != null) {
225 oldData.invalidate();
226 }
227 if (isGrabbing()) {
228 ungrab();
229 }
230 destroyBuffers();
231 platformWindow.dispose();
232 super.disposeImpl();
233 }
234
235 @Override
236 protected void setVisibleImpl(final boolean visible) {
237 super.setVisibleImpl(visible);
238 // TODO: update graphicsConfig, see 4868278
239 platformWindow.setVisible(visible);
240 if (isSimpleWindow()) {
241 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
242
243 if (visible) {
244 if (!getTarget().isAutoRequestFocus()) {
245 return;
246 } else {
247 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
248 }
249 // Focus the owner in case this window is focused.
250 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
251 // Transfer focus to the owner.
252 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
253 if (owner != null) {
254 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
255 }
256 }
257 }
258 }
259
260 @Override
261 public GraphicsConfiguration getGraphicsConfiguration() {
262 return graphicsConfig;
263 }
264
265 @Override
266 public boolean updateGraphicsData(GraphicsConfiguration gc) {
267 setGraphicsConfig(gc);
268 return false;
269 }
270
271 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
272 if (getSurfaceData() == null) {
273 return null;
274 }
275 if (fg == null) {
276 fg = SystemColor.windowText;
277 }
278 if (bg == null) {
279 bg = SystemColor.window;
280 }
281 if (f == null) {
282 f = DEFAULT_FONT;
283 }
284 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
285 }
286
287 @Override
288 public void createBuffers(int numBuffers, BufferCapabilities caps)
289 throws AWTException
290 {
291 try {
292 // Assume this method is never called with numBuffers <= 1, as 0 is
293 // unsupported, and 1 corresponds to a SingleBufferStrategy which
294 // doesn't depend on the peer. Screen is considered as a separate
295 // "buffer", that's why numBuffers - 1
296 assert numBuffers > 1;
297
298 replaceSurfaceData(numBuffers - 1, caps, false);
299 } catch (InvalidPipeException z) {
300 throw new AWTException(z.toString());
301 }
302 }
303
304 @Override
305 public final Image getBackBuffer() {
306 synchronized (getStateLock()) {
307 return backBuffer;
308 }
309 }
310
311 @Override
312 public void flip(int x1, int y1, int x2, int y2,
313 BufferCapabilities.FlipContents flipAction)
314 {
315 platformWindow.flip(x1, y1, x2, y2, flipAction);
316 }
317
318 @Override
319 public final void destroyBuffers() {
320 final Image oldBB = getBackBuffer();
321 synchronized (getStateLock()) {
322 backBuffer = null;
323 }
324 if (oldBB != null) {
325 oldBB.flush();
326 }
327 }
328
329 @Override
330 public void setBounds(int x, int y, int w, int h, int op) {
331 if ((op & SET_CLIENT_SIZE) != 0) {
332 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
333 // instead of pulling 'insets' field up to LWComponentPeer
334 // no need to add insets since Window's notion of width and height includes insets.
335 op &= ~SET_CLIENT_SIZE;
336 op |= SET_SIZE;
337 }
338
339 if (w < MINIMUM_WIDTH) {
340 w = MINIMUM_WIDTH;
341 }
342 if (h < MINIMUM_HEIGHT) {
343 h = MINIMUM_HEIGHT;
344 }
345
346 if (graphicsConfig instanceof TextureSizeConstraining) {
347 final int maxW = ((TextureSizeConstraining)graphicsConfig).getMaxTextureWidth();
348 final int maxH = ((TextureSizeConstraining)graphicsConfig).getMaxTextureHeight();
349
350 if (w > maxW) {
351 w = maxW;
352 }
353 if (h > maxH) {
354 h = maxH;
355 }
356 }
357
358 // Don't post ComponentMoved/Resized and Paint events
359 // until we've got a notification from the delegate
360 setBounds(x, y, w, h, op, false, false);
361 // Get updated bounds, so we don't have to handle 'op' here manually
362 Rectangle r = getBounds();
363 platformWindow.setBounds(r.x, r.y, r.width, r.height);
364 }
365
366 @Override
367 public Point getLocationOnScreen() {
368 return platformWindow.getLocationOnScreen();
369 }
370
371 /**
372 * Overridden from LWContainerPeer to return the correct insets.
373 * Insets are queried from the delegate and are kept up to date by
374 * requiering when needed (i.e. when the window geometry is changed).
375 */
376 @Override
377 public Insets getInsets() {
378 synchronized (getStateLock()) {
379 return insets;
380 }
381 }
382
383 @Override
384 public FontMetrics getFontMetrics(Font f) {
385 // TODO: check for "use platform metrics" settings
386 return platformWindow.getFontMetrics(f);
387 }
388
389 @Override
390 public void toFront() {
391 platformWindow.toFront();
392 }
393
394 @Override
395 public void toBack() {
396 platformWindow.toBack();
397 }
398
399 @Override
400 public void setZOrder(ComponentPeer above) {
401 throw new RuntimeException("not implemented");
402 }
403
404 @Override
405 public void setAlwaysOnTop(boolean value) {
406 platformWindow.setAlwaysOnTop(value);
407 }
408
409 @Override
410 public void updateFocusableWindowState() {
411 platformWindow.updateFocusableWindowState();
412 }
413
414 @Override
415 public void setModalBlocked(Dialog blocker, boolean blocked) {
416 synchronized (getPeerTreeLock()) {
417 this.blocker = blocked ? (LWWindowPeer)blocker.getPeer() : null;
418 }
419
420 platformWindow.setModalBlocked(blocked);
421 }
422
423 @Override
424 public void updateMinimumSize() {
425 final Dimension min;
426 if (getTarget().isMinimumSizeSet()) {
427 min = getTarget().getMinimumSize();
428 min.width = Math.max(min.width, MINIMUM_WIDTH);
429 min.height = Math.max(min.height, MINIMUM_HEIGHT);
430 } else {
431 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
432 }
433
434 final int maxW, maxH;
435 if (graphicsConfig instanceof TextureSizeConstraining) {
436 maxW = ((TextureSizeConstraining)graphicsConfig).getMaxTextureWidth();
437 maxH = ((TextureSizeConstraining)graphicsConfig).getMaxTextureHeight();
438 } else {
439 maxW = maxH = Integer.MAX_VALUE;
440 }
441
442 final Dimension max;
443 if (getTarget().isMaximumSizeSet()) {
444 max = getTarget().getMaximumSize();
445 max.width = Math.min(max.width, maxW);
446 max.height = Math.min(max.height, maxH);
447 } else {
448 max = new Dimension(maxW, maxH);
449 }
450
451 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
452 }
453
454 @Override
455 public void updateIconImages() {
456 getPlatformWindow().updateIconImages();
457 }
458
459 @Override
460 public void setOpacity(float opacity) {
461 getPlatformWindow().setOpacity(opacity);
462 repaintPeer();
463 }
464
465 @Override
466 public final void setOpaque(final boolean isOpaque) {
467 if (this.isOpaque != isOpaque) {
468 this.isOpaque = isOpaque;
469 updateOpaque();
470 }
471 }
472
473 private void updateOpaque() {
474 getPlatformWindow().setOpaque(!isTranslucent());
475 replaceSurfaceData(false);
476 repaintPeer();
477 }
478
479 @Override
480 public void updateWindow() {
481 }
482
483 public final boolean isTextured() {
484 return textured;
485 }
486
487 public final void setTextured(final boolean isTextured) {
488 textured = isTextured;
489 }
490
491 public final boolean isTranslucent() {
492 synchronized (getStateLock()) {
493 /*
494 * Textured window is a special case of translucent window.
495 * The difference is only in nswindow background. So when we set
496 * texture property our peer became fully translucent. It doesn't
497 * fill background, create non opaque backbuffers and layer etc.
498 */
499 return !isOpaque || isShaped() || isTextured();
500 }
501 }
502
503 @Override
504 final void applyShapeImpl(final Region shape) {
505 super.applyShapeImpl(shape);
506 updateOpaque();
507 }
508
509 @Override
510 public void repositionSecurityWarning() {
511 throw new RuntimeException("not implemented");
512 }
513
514 // ---- FRAME PEER METHODS ---- //
515
516 @Override // FramePeer and DialogPeer
517 public void setTitle(String title) {
518 platformWindow.setTitle(title == null ? "" : title);
519 }
520
521 @Override
522 public void setMenuBar(MenuBar mb) {
523 platformWindow.setMenuBar(mb);
524 }
525
526 @Override // FramePeer and DialogPeer
527 public void setResizable(boolean resizable) {
528 platformWindow.setResizable(resizable);
529 }
530
531 @Override
532 public void setState(int state) {
533 platformWindow.setWindowState(state);
534 }
535
536 @Override
537 public int getState() {
538 return windowState;
539 }
540
541 @Override
542 public void setMaximizedBounds(Rectangle bounds) {
543 // TODO: not implemented
544 }
545
546 @Override
547 public void setBoundsPrivate(int x, int y, int width, int height) {
548 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
549 }
550
551 @Override
552 public Rectangle getBoundsPrivate() {
553 throw new RuntimeException("not implemented");
554 }
555
556 // ---- DIALOG PEER METHODS ---- //
557
558 @Override
559 public void blockWindows(List<Window> windows) {
560 //TODO: LWX will probably need some collectJavaToplevels to speed this up
561 for (Window w : windows) {
562 WindowPeer wp = (WindowPeer)w.getPeer();
563 if (wp != null) {
564 wp.setModalBlocked((Dialog)getTarget(), true);
565 }
566 }
567 }
568
569 // ---- PEER NOTIFICATIONS ---- //
570
571 public void notifyIconify(boolean iconify) {
572 //The toplevel target is Frame and states are applicable to it.
573 //Otherwise, the target is Window and it don't have state property.
574 //Hopefully, no such events are posted in the queue so consider the
575 //target as Frame in all cases.
576
577 // REMIND: should we send it anyway if the state not changed since last
578 // time?
579 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
580 iconify ? WindowEvent.WINDOW_ICONIFIED
581 : WindowEvent.WINDOW_DEICONIFIED);
582 postEvent(iconifyEvent);
583
584 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
585 postWindowStateChangedEvent(newWindowState);
586
587 // REMIND: RepaintManager doesn't repaint iconified windows and
588 // hence ignores any repaint request during deiconification.
589 // So, we need to repaint window explicitly when it becomes normal.
590 if (!iconify) {
591 repaintPeer();
592 }
593 }
594
595 public void notifyZoom(boolean isZoomed) {
596 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
597 postWindowStateChangedEvent(newWindowState);
598 }
599
600 /**
601 * Called by the {@code PlatformWindow} when any part of the window should
602 * be repainted.
603 */
604 public final void notifyExpose(final Rectangle r) {
605 repaintPeer(r);
606 }
607
608 /**
609 * Called by the {@code PlatformWindow} when this window is moved/resized by
610 * user. There's no notifyReshape() in LWComponentPeer as the only
611 * components which could be resized by user are top-level windows.
612 */
613 public final void notifyReshape(int x, int y, int w, int h) {
614 final boolean moved;
615 final boolean resized;
616 synchronized (getStateLock()) {
617 moved = (x != sysX) || (y != sysY);
618 resized = (w != sysW) || (h != sysH);
619 sysX = x;
620 sysY = y;
621 sysW = w;
622 sysH = h;
623 }
624
625 // Check if anything changed
626 if (!moved && !resized) {
627 return;
628 }
629 // First, update peer's bounds
630 setBounds(x, y, w, h, SET_BOUNDS, false, false);
631
632 // Second, update the graphics config and surface data
633 checkIfOnNewScreen();
634 if (resized) {
635 replaceSurfaceData();
636 flushOnscreenGraphics();
637 }
638
639 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
640 if (moved) {
641 handleMove(x, y, true);
642 }
643 if (resized) {
644 handleResize(w, h, true);
645 repaintPeer();
646 }
647 }
648
649 private void clearBackground(final int w, final int h) {
650 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
651 getFont());
652 if (g != null) {
653 try {
654 if (g instanceof Graphics2D) {
655 ((Graphics2D) g).setComposite(AlphaComposite.Src);
656 }
657 if (isTranslucent()) {
658 g.setColor(nonOpaqueBackground);
659 g.fillRect(0, 0, w, h);
660 }
661 if (!isTextured()) {
662 if (g instanceof SunGraphics2D) {
663 SG2DConstraint((SunGraphics2D) g, getRegion());
664 }
665 g.setColor(getBackground());
666 g.fillRect(0, 0, w, h);
667 }
668 } finally {
669 g.dispose();
670 }
671 }
672 }
673
674 public void notifyUpdateCursor() {
675 getLWToolkit().getCursorManager().updateCursorLater(this);
676 }
677
678 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
679 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
680 changeFocusedWindow(activation, oppositeWindow);
681 }
682
683 // MouseDown in non-client area
684 public void notifyNCMouseDown() {
685 // Ungrab except for a click on a Dialog with the grabbing owner
686 if (grabbingWindow != null &&
687 grabbingWindow != getOwnerFrameDialog(this))
688 {
689 grabbingWindow.ungrab();
690 }
691 }
692
693 // ---- EVENTS ---- //
694
695 /*
696 * Called by the delegate to dispatch the event to Java. Event
697 * coordinates are relative to non-client window are, i.e. the top-left
698 * point of the client area is (insets.top, insets.left).
699 */
700 public void dispatchMouseEvent(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 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
717 MouseEvent.MOUSE_EXITED, when,
718 modifiers, lp.x, lp.y, screenX,
719 screenY, clickCount, popupTrigger,
720 button));
721 }
722
723 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
724 // to a peer from another window. So we must first check if this peer is
725 // the same as lastWindowPeer
726 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
727 lastCommonMouseEventPeer = null;
728 }
729 lastMouseEventPeer = null;
730 }
731 } else if(id == MouseEvent.MOUSE_ENTERED) {
732 isMouseOver = true;
733 if (targetPeer != null) {
734 if (targetPeer.isEnabled()) {
735 Point lp = targetPeer.windowToLocal(x, y, this);
736 postEvent(new MouseEvent(targetPeer.getTarget(),
737 MouseEvent.MOUSE_ENTERED, when,
738 modifiers, lp.x, lp.y, screenX,
739 screenY, clickCount, popupTrigger,
740 button));
741 }
742 lastCommonMouseEventPeer = targetPeer;
743 lastMouseEventPeer = targetPeer;
744 }
745 } else {
746 PlatformWindow topmostPlatforWindow =
747 platformWindow.getTopmostPlatformWindowUnderMouse();
748
749 LWWindowPeer topmostWindowPeer =
750 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
751
752 // topmostWindowPeer == null condition is added for the backward
753 // compatibility with applets. It can be removed when the
754 // getTopmostPlatformWindowUnderMouse() method will be properly
755 // implemented in CPlatformEmbeddedFrame class
756 if (topmostWindowPeer == this || topmostWindowPeer == null) {
757 generateMouseEnterExitEventsForComponents(when, button, x, y,
758 screenX, screenY, modifiers, clickCount, popupTrigger,
759 targetPeer);
760 } else {
761 LWComponentPeer topmostTargetPeer =
762 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
763 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
764 screenX, screenY, modifiers, clickCount, popupTrigger,
765 topmostTargetPeer);
766 }
767
768 // TODO: fill "bdata" member of AWTEvent
769
770 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
771 int otherButtonsPressed = modifiers & ~eventButtonMask;
772
773 // For pressed/dragged/released events OS X treats other
774 // mouse buttons as if they were BUTTON2, so we do the same
775 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
776
777 // MOUSE_ENTERED/EXITED are generated for the components strictly under
778 // mouse even when dragging. That's why we first update lastMouseEventPeer
779 // based on initial targetPeer value and only then recalculate targetPeer
780 // for MOUSE_DRAGGED/RELEASED events
781 if (id == MouseEvent.MOUSE_PRESSED) {
782
783 // Ungrab only if this window is not an owned window of the grabbing one.
784 if (!isGrabbing() && grabbingWindow != null &&
785 grabbingWindow != getOwnerFrameDialog(this))
786 {
787 grabbingWindow.ungrab();
788 }
789 if (otherButtonsPressed == 0) {
790 mouseClickButtons = eventButtonMask;
791 } else {
792 mouseClickButtons |= eventButtonMask;
793 }
794
795 // The window should be focused on mouse click. If it gets activated by the native platform,
796 // this request will be no op. It will take effect when:
797 // 1. A simple not focused window is clicked.
798 // 2. An active but not focused owner frame/dialog is clicked.
799 // The mouse event then will trigger a focus request "in window" to the component, so the window
800 // should gain focus before.
801 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
802
803 mouseDownTarget[targetIdx] = targetPeer;
804 } else if (id == MouseEvent.MOUSE_DRAGGED) {
805 // Cocoa dragged event has the information about which mouse
806 // button is being dragged. Use it to determine the peer that
807 // should receive the dragged event.
808 targetPeer = mouseDownTarget[targetIdx];
809 mouseClickButtons &= ~modifiers;
810 } else if (id == MouseEvent.MOUSE_RELEASED) {
811 // TODO: currently, mouse released event goes to the same component
812 // that received corresponding mouse pressed event. For most cases,
813 // it's OK, however, we need to make sure that our behavior is consistent
814 // with 1.6 for cases where component in question have been
815 // hidden/removed in between of mouse pressed/released events.
816 targetPeer = mouseDownTarget[targetIdx];
817
818 if ((modifiers & eventButtonMask) == 0) {
819 mouseDownTarget[targetIdx] = null;
820 }
821
822 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
823 }
824
825 if (targetPeer == null) {
826 //TODO This can happen if this window is invisible. this is correct behavior in this case?
827 targetPeer = this;
828 }
829
830
831 Point lp = targetPeer.windowToLocal(x, y, this);
832 if (targetPeer.isEnabled()) {
833 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
834 when, modifiers, lp.x, lp.y,
835 screenX, screenY, clickCount,
836 popupTrigger, button);
837 postEvent(event);
838 }
839
840 if (id == MouseEvent.MOUSE_RELEASED) {
841 if ((mouseClickButtons & eventButtonMask) != 0
842 && targetPeer.isEnabled()) {
843 postEvent(new MouseEvent(targetPeer.getTarget(),
844 MouseEvent.MOUSE_CLICKED,
845 when, modifiers,
846 lp.x, lp.y, screenX, screenY,
847 clickCount, popupTrigger, button));
848 }
849 mouseClickButtons &= ~eventButtonMask;
850 }
851 }
852 notifyUpdateCursor();
853 }
854
855 private void generateMouseEnterExitEventsForComponents(long when,
856 int button, int x, int y, int screenX, int screenY,
857 int modifiers, int clickCount, boolean popupTrigger,
858 LWComponentPeer targetPeer) {
859
860 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
861 return;
862 }
863
864 // Generate Mouse Exit for components
865 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
866 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
867 postEvent(new MouseEvent(lastMouseEventPeer.getTarget(),
868 MouseEvent.MOUSE_EXITED,
869 when, modifiers,
870 oldp.x, oldp.y, screenX, screenY,
871 clickCount, popupTrigger, button));
872 }
873 lastCommonMouseEventPeer = targetPeer;
874 lastMouseEventPeer = targetPeer;
875
876 // Generate Mouse Enter for components
877 if (targetPeer != null && targetPeer.isEnabled()) {
878 Point newp = targetPeer.windowToLocal(x, y, this);
879 postEvent(new MouseEvent(targetPeer.getTarget(),
880 MouseEvent.MOUSE_ENTERED,
881 when, modifiers,
882 newp.x, newp.y, screenX, screenY,
883 clickCount, popupTrigger, button));
884 }
885 }
886
887 public void dispatchMouseWheelEvent(long when, int x, int y, int modifiers,
888 int scrollType, int scrollAmount,
889 int wheelRotation, double preciseWheelRotation,
890 byte[] bdata)
891 {
892 // TODO: could we just use the last mouse event target here?
893 Rectangle r = getBounds();
894 // findPeerAt() expects parent coordinates
895 final LWComponentPeer targetPeer = findPeerAt(r.x + x, r.y + y);
896 if (targetPeer == null || !targetPeer.isEnabled()) {
897 return;
898 }
899
900 Point lp = targetPeer.windowToLocal(x, y, this);
901 // TODO: fill "bdata" member of AWTEvent
902 // TODO: screenX/screenY
903 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
904 MouseEvent.MOUSE_WHEEL,
905 when, modifiers,
906 lp.x, lp.y,
907 0, 0, /* screenX, Y */
908 0 /* clickCount */, false /* popupTrigger */,
909 scrollType, scrollAmount,
910 wheelRotation, preciseWheelRotation));
911 }
912
913 /*
914 * Called by the delegate when a key is pressed.
915 */
916 public void dispatchKeyEvent(int id, long when, int modifiers,
917 int keyCode, char keyChar, int keyLocation)
918 {
919 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
920 Component focusOwner = kfmPeer.getCurrentFocusOwner();
921
922 if (focusOwner == null) {
923 focusOwner = kfmPeer.getCurrentFocusedWindow();
924 if (focusOwner == null) {
925 focusOwner = this.getTarget();
926 }
927 }
928 postEvent(new KeyEvent(focusOwner, id, when, modifiers, keyCode, keyChar, keyLocation));
929 }
930
931
932 // ---- UTILITY METHODS ---- //
933
934 private void postWindowStateChangedEvent(int newWindowState) {
935 if (getTarget() instanceof Frame) {
936 AWTAccessor.getFrameAccessor().setExtendedState(
937 (Frame)getTarget(), newWindowState);
938 }
939 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
940 WindowEvent.WINDOW_STATE_CHANGED,
941 windowState, newWindowState);
942 postEvent(stateChangedEvent);
943 windowState = newWindowState;
944 }
945
946 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
947 // TODO: this method can be implemented in a more
948 // efficient way by forwarding to the delegate
949 GraphicsDevice gd = gc.getDevice();
950 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
951 GraphicsDevice[] gds = ge.getScreenDevices();
952 for (int i = 0; i < gds.length; i++) {
953 if (gds[i] == gd) {
954 return i;
955 }
956 }
957 // Should never happen if gc is a screen device config
958 return 0;
959 }
960
961 /*
962 * This method is called when window's graphics config is changed from
963 * the app code (e.g. when the window is made non-opaque) or when
964 * the window is moved to another screen by user.
965 *
966 * Returns true if the graphics config has been changed, false otherwise.
967 */
968 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
969 synchronized (getStateLock()) {
970 if (graphicsConfig == gc) {
971 return false;
972 }
973 // If window's graphics config is changed from the app code, the
974 // config correspond to the same device as before; when the window
975 // is moved by user, graphicsDevice is updated in checkIfOnNewScreen().
976 // In either case, there's nothing to do with screenOn here
977 graphicsConfig = gc;
978 }
979 // SurfaceData is replaced later in updateGraphicsData()
980 return true;
981 }
982
983 private void checkIfOnNewScreen() {
984 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
985 synchronized (getStateLock()) {
986 if (graphicsDevice == newGraphicsDevice) {
987 return;
988 }
989 graphicsDevice = newGraphicsDevice;
990 }
991
992 // TODO: DisplayChangedListener stuff
993 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
994
995 if (!setGraphicsConfig(newGC)) return;
996
997 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
998 public void run() {
999 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1000 }
1001 });
1002 }
1003
1004 /*
1005 * May be called by delegate to provide SD to Java2D code.
1006 */
1007 public SurfaceData getSurfaceData() {
1008 synchronized (surfaceDataLock) {
1009 return surfaceData;
1010 }
1011 }
1012
1013 private void replaceSurfaceData() {
1014 replaceSurfaceData(true);
1015 }
1016
1017 private void replaceSurfaceData(boolean blit) {
1018 replaceSurfaceData(backBufferCount, backBufferCaps, blit);
1019 }
1020
1021 private void replaceSurfaceData(int newBackBufferCount,
1022 BufferCapabilities newBackBufferCaps,
1023 boolean blit) {
1024 synchronized (surfaceDataLock) {
1025 final SurfaceData oldData = getSurfaceData();
1026 surfaceData = platformWindow.replaceSurfaceData();
1027 // TODO: volatile image
1028 // VolatileImage oldBB = backBuffer;
1029 BufferedImage oldBB = backBuffer;
1030 backBufferCount = newBackBufferCount;
1031 backBufferCaps = newBackBufferCaps;
1032 final Rectangle size = getSize();
1033 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1034 clearBackground(size.width, size.height);
1035 }
1036
1037 if (blit) {
1038 blitSurfaceData(oldData, getSurfaceData());
1039 }
1040
1041 if (oldData != null && oldData != getSurfaceData()) {
1042 // TODO: drop oldData for D3D/WGL pipelines
1043 // This can only happen when this peer is being created
1044 oldData.flush();
1045 }
1046
1047 // TODO: volatile image
1048 // backBuffer = (VolatileImage)delegate.createBackBuffer();
1049 backBuffer = (BufferedImage) platformWindow.createBackBuffer();
1050 if (backBuffer != null) {
1051 Graphics g = backBuffer.getGraphics();
1052 try {
1053 Rectangle r = getBounds();
1054 if (g instanceof Graphics2D) {
1055 ((Graphics2D) g).setComposite(AlphaComposite.Src);
1056 }
1057 g.setColor(nonOpaqueBackground);
1058 g.fillRect(0, 0, r.width, r.height);
1059 if (g instanceof SunGraphics2D) {
1060 SG2DConstraint((SunGraphics2D) g, getRegion());
1061 }
1062 if (!isTextured()) {
1063 g.setColor(getBackground());
1064 g.fillRect(0, 0, r.width, r.height);
1065 }
1066 if (oldBB != null) {
1067 // Draw the old back buffer to the new one
1068 g.drawImage(oldBB, 0, 0, null);
1069 oldBB.flush();
1070 }
1071 } finally {
1072 g.dispose();
1073 }
1074 }
1075 }
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 final Rectangle size = getSize();
1085 final Blit blit = Blit.locate(src.getSurfaceType(),
1086 CompositeType.Src,
1087 dst.getSurfaceType());
1088 if (blit != null) {
1089 blit.Blit(src, dst, AlphaComposite.Src,
1090 getRegion(), 0, 0, 0, 0, size.width, size.height);
1091 }
1092 }
1093 }
1094
1095 public int getBackBufferCount() {
1096 return backBufferCount;
1097 }
1098
1099 public BufferCapabilities getBackBufferCaps() {
1100 return backBufferCaps;
1101 }
1102
1103 /*
1104 * Request the window insets from the delegate and compares it
1105 * with the current one. This method is mostly called by the
1106 * delegate, e.g. when the window state is changed and insets
1107 * should be recalculated.
1108 *
1109 * This method may be called on the toolkit thread.
1110 */
1111 public boolean updateInsets(Insets newInsets) {
1112 boolean changed = false;
1113 synchronized (getStateLock()) {
1114 changed = (insets.equals(newInsets));
1115 insets = newInsets;
1116 }
1117
1118 if (changed) {
1119 replaceSurfaceData();
1120 repaintPeer();
1121 }
1122
1123 return changed;
1124 }
1125
1126 public static LWWindowPeer getWindowUnderCursor() {
1127 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1128 }
1129
1130 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1131 return lastCommonMouseEventPeer;
1132 }
1133
1134 /*
1135 * Requests platform to set native focus on a frame/dialog.
1136 * In case of a simple window, triggers appropriate java focus change.
1137 */
1138 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1139 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1140 focusLog.fine("requesting native focus to " + this);
1141 }
1142
1143 if (!focusAllowedFor()) {
1144 focusLog.fine("focus is not allowed");
1145 return false;
1146 }
1147
1148 if (platformWindow.rejectFocusRequest(cause)) {
1149 return false;
1150 }
1151
1152 Window currentActive = KeyboardFocusManager.
1153 getCurrentKeyboardFocusManager().getActiveWindow();
1154
1155 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1156 getCurrentFocusedWindow();
1157
1158 // Make the owner active window.
1159 if (isSimpleWindow()) {
1160 LWWindowPeer owner = getOwnerFrameDialog(this);
1161
1162 // If owner is not natively active, request native
1163 // activation on it w/o sending events up to java.
1164 if (owner != null && !owner.platformWindow.isActive()) {
1165 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1166 focusLog.fine("requesting native focus to the owner " + owner);
1167 }
1168 LWWindowPeer currentActivePeer = (currentActive != null ?
1169 (LWWindowPeer)currentActive.getPeer() : null);
1170
1171 // Ensure the opposite is natively active and suppress sending events.
1172 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1173 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1174 focusLog.fine("the opposite is " + currentActivePeer);
1175 }
1176 currentActivePeer.skipNextFocusChange = true;
1177 }
1178 owner.skipNextFocusChange = true;
1179
1180 owner.platformWindow.requestWindowFocus();
1181 }
1182
1183 // DKFM will synthesize all the focus/activation events correctly.
1184 changeFocusedWindow(true, opposite);
1185 return true;
1186
1187 // In case the toplevel is active but not focused, change focus directly,
1188 // as requesting native focus on it will not have effect.
1189 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1190
1191 changeFocusedWindow(true, opposite);
1192 return true;
1193 }
1194
1195 return platformWindow.requestWindowFocus();
1196 }
1197
1198 private boolean focusAllowedFor() {
1199 Window window = getTarget();
1200 // TODO: check if modal blocked
1201 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1202 }
1203
1204 private boolean isFocusableWindow() {
1205 boolean focusable = getTarget().isFocusableWindow();
1206 if (isSimpleWindow()) {
1207 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1208 if (ownerPeer == null) {
1209 return false;
1210 }
1211 return focusable && ownerPeer.getTarget().isFocusableWindow();
1212 }
1213 return focusable;
1214 }
1215
1216 public boolean isSimpleWindow() {
1217 Window window = getTarget();
1218 return !(window instanceof Dialog || window instanceof Frame);
1219 }
1220
1221 /*
1222 * Changes focused window on java level.
1223 */
1224 private void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1225 if (focusLog.isLoggable(PlatformLogger.FINE)) {
1226 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1227 }
1228 if (skipNextFocusChange) {
1229 focusLog.fine("skipping focus change");
1230 skipNextFocusChange = false;
1231 return;
1232 }
1233 if (!isFocusableWindow() && becomesFocused) {
1234 focusLog.fine("the window is not focusable");
1235 return;
1236 }
1237 if (becomesFocused) {
1238 synchronized (getPeerTreeLock()) {
1239 if (blocker != null) {
1240 if (focusLog.isLoggable(PlatformLogger.FINEST)) {
1241 focusLog.finest("the window is blocked by " + blocker);
1242 }
1243 return;
1244 }
1245 }
1246 }
1247
1248 // Note, the method is not called:
1249 // - when the opposite (gaining focus) window is an owned/owner window.
1250 // - for a simple window in any case.
1251 if (!becomesFocused &&
1252 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1253 {
1254 focusLog.fine("ungrabbing on " + grabbingWindow);
1255 // ungrab a simple window if its owner looses activation.
1256 grabbingWindow.ungrab();
1257 }
1258
1259 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1260 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1261
1262 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1263 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1264
1265 // TODO: wrap in SequencedEvent
1266 postEvent(windowEvent);
1267 }
1268
1269 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1270 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1271 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1272 owner = owner.getOwner();
1273 }
1274 return owner != null ? (LWWindowPeer)owner.getPeer() : null;
1275 }
1276
1277 /**
1278 * Returns the foremost modal blocker of this window, or null.
1279 */
1280 public LWWindowPeer getBlocker() {
1281 synchronized (getPeerTreeLock()) {
1282 LWWindowPeer blocker = this.blocker;
1283 if (blocker == null) {
1284 return null;
1285 }
1286 while (blocker.blocker != null) {
1287 blocker = blocker.blocker;
1288 }
1289 return blocker;
1290 }
1291 }
1292
1293 public void enterFullScreenMode() {
1294 platformWindow.enterFullScreenMode();
1295 }
1296
1297 public void exitFullScreenMode() {
1298 platformWindow.exitFullScreenMode();
1299 }
1300
1301 public long getLayerPtr() {
1302 return getPlatformWindow().getLayerPtr();
1303 }
1304
1305 void grab() {
1306 if (grabbingWindow != null && !isGrabbing()) {
1307 grabbingWindow.ungrab();
1308 }
1309 grabbingWindow = this;
1310 }
1311
1312 void ungrab() {
1313 if (isGrabbing()) {
1314 grabbingWindow = null;
1315 postEvent(new UngrabEvent(getTarget()));
1316 }
1317 }
1318
1319 private boolean isGrabbing() {
1320 return this == grabbingWindow;
1321 }
1322
1323 @Override
1324 public String toString() {
1325 return super.toString() + " [target is " + getTarget() + "]";
1326 }
1327 }