1 /*
2 * Copyright (c) 2008, 2014, 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 com.sun.javafx.tk.quantum;
27
28 import java.nio.ByteBuffer;
29 import java.security.AccessControlException;
30 import java.security.AccessController;
31 import java.security.AllPermission;
32 import java.security.Permission;
33 import java.security.PrivilegedAction;
34 import java.security.AccessControlContext;
35 import java.util.HashMap;
36 import java.util.LinkedList;
37 import java.util.List;
38 import java.util.Map;
39
40 import javafx.scene.input.KeyCombination;
41 import javafx.stage.Modality;
42 import javafx.stage.Stage;
43 import javafx.stage.StageStyle;
44
45 import com.sun.glass.events.WindowEvent;
46 import com.sun.glass.ui.*;
47 import com.sun.glass.ui.Window.Level;
48 import com.sun.javafx.PlatformUtil;
49 import com.sun.javafx.iio.common.PushbroomScaler;
50 import com.sun.javafx.iio.common.ScalerFactory;
51 import com.sun.javafx.tk.FocusCause;
52 import com.sun.javafx.tk.TKScene;
53 import com.sun.javafx.tk.TKStage;
54 import com.sun.prism.Image;
55 import com.sun.prism.PixelFormat;
56 import java.util.Locale;
57 import java.util.ResourceBundle;
58
59 class WindowStage extends GlassStage {
60
61 protected Window platformWindow;
62
63 protected javafx.stage.Stage fxStage;
64
65 private StageStyle style;
66 private GlassStage owner = null;
67 private Modality modality = Modality.NONE;
68 private final boolean securityDialog;
69
70 private OverlayWarning warning = null;
71 private boolean rtl = false;
72 private boolean transparent = false;
73 private boolean isPrimaryStage = false;
74 private boolean isAppletStage = false; // true if this is an embedded applet window
75 private boolean isPopupStage = false;
76 private boolean isInFullScreen = false;
77
78 // A flag to indicate whether a call was generated from
79 // an input event handler.
80 private boolean inEventHandler = false;
81
82 // An active window is visible && enabled && focusable.
83 // The list is maintained in the z-order, so that the last element
84 // represents the topmost window (or more accurately, the last
85 // focused window, which we assume is very close to the last topmost one).
86 private static List<WindowStage> activeWindows = new LinkedList<>();
87
88 private static Map<Window, WindowStage> platformWindows = new HashMap<>();
89
90 private static GlassAppletWindow appletWindow = null;
91 static void setAppletWindow(GlassAppletWindow aw) {
92 appletWindow = aw;
93 }
94 static GlassAppletWindow getAppletWindow() {
95 return appletWindow;
96 }
97
98 private static final Locale LOCALE = Locale.getDefault();
99
100 private static final ResourceBundle RESOURCES =
101 ResourceBundle.getBundle(WindowStage.class.getPackage().getName() +
102 ".QuantumMessagesBundle", LOCALE);
103
104
105 public WindowStage(javafx.stage.Window peerWindow, boolean securityDialog, final StageStyle stageStyle, Modality modality, TKStage owner) {
106 this.style = stageStyle;
107 this.owner = (GlassStage)owner;
108 this.modality = modality;
109 this.securityDialog = securityDialog;
110
111 if (peerWindow instanceof javafx.stage.Stage) {
112 fxStage = (Stage)peerWindow;
113 } else {
114 fxStage = null;
115 }
116
117 transparent = stageStyle == StageStyle.TRANSPARENT;
118 if (owner == null) {
119 if (this.modality == Modality.WINDOW_MODAL) {
120 this.modality = Modality.NONE;
121 }
122 }
123 }
124
125 final void setIsPrimary() {
126 isPrimaryStage = true;
127 if (appletWindow != null) {
128 // this is an embedded applet stage
129 isAppletStage = true;
130 }
131 }
132
133 final void setIsPopup() {
134 isPopupStage = true;
135 }
136
137 final boolean isSecurityDialog() {
138 return securityDialog;
139 }
140
141 // Called by QuantumToolkit, so we can override initPlatformWindow in subclasses
142 public final WindowStage init(GlassSystemMenu sysmenu) {
143 initPlatformWindow();
144 platformWindow.setEventHandler(new GlassWindowEventHandler(this));
145 if (sysmenu.isSupported()) {
146 sysmenu.createMenuBar();
147 platformWindow.setMenuBar(sysmenu.getMenuBar());
148 }
149 return this;
150 }
151
152 private void initPlatformWindow() {
153 if (platformWindow == null) {
154 Application app = Application.GetApplication();
155 if (isPrimaryStage && (null != appletWindow)) {
156 platformWindow = app.createWindow(appletWindow.getGlassWindow().getNativeWindow());
157 } else {
158 Window ownerWindow = null;
159 if (owner instanceof WindowStage) {
160 ownerWindow = ((WindowStage)owner).platformWindow;
161 }
162 boolean resizable = false;
163 boolean focusable = true;
164 int windowMask = rtl ? Window.RIGHT_TO_LEFT : 0;
165 if (isPopupStage) { // TODO: make it a stage style?
166 windowMask |= Window.POPUP;
167 if (style == StageStyle.TRANSPARENT) {
168 windowMask |= Window.TRANSPARENT;
169 }
170 focusable = false;
171 } else {
172 switch (style) {
173 case UNIFIED:
174 if (app.supportsUnifiedWindows()) {
175 windowMask |= Window.UNIFIED;
176 }
177 // fall through
178 case DECORATED:
179 windowMask |=
180 Window.TITLED | Window.CLOSABLE |
181 Window.MINIMIZABLE | Window.MAXIMIZABLE;
182 if (ownerWindow != null || modality != Modality.NONE) {
183 windowMask &=
184 ~(Window.MINIMIZABLE | Window.MAXIMIZABLE);
185 }
186 resizable = true;
187 break;
188 case UTILITY:
189 windowMask |= Window.TITLED | Window.UTILITY | Window.CLOSABLE;
190 break;
191 default:
192 windowMask |=
193 (transparent ? Window.TRANSPARENT : Window.UNTITLED) | Window.CLOSABLE;
194 break;
195 }
196 }
197 platformWindow =
198 app.createWindow(ownerWindow, Screen.getMainScreen(), windowMask);
199 platformWindow.setResizable(resizable);
200 platformWindow.setFocusable(focusable);
201 if (securityDialog) {
202 platformWindow.setLevel(Window.Level.FLOATING);
203 }
204 }
205 }
206 platformWindows.put(platformWindow, this);
207 }
208
209 final Window getPlatformWindow() {
210 return platformWindow;
211 }
212
213 static WindowStage findWindowStage(Window platformWindow) {
214 return platformWindows.get(platformWindow);
215 }
216
217 protected GlassStage getOwner() {
218 return owner;
219 }
220
221 protected ViewScene getViewScene() {
222 return (ViewScene)getScene();
223 }
224
225 StageStyle getStyle() {
226 return style;
227 }
228
229 @Override public TKScene createTKScene(boolean depthBuffer, boolean msaa, AccessControlContext acc) {
230 ViewScene scene = new ViewScene(depthBuffer, msaa);
231 scene.setSecurityContext(acc);
232 return scene;
233 }
234
235 /**
236 * Set the scene to be displayed in this stage
237 *
238 * @param scene The peer of the scene to be displayed
239 */
240 @Override public void setScene(TKScene scene) {
241 GlassScene oldScene = getScene();
242 if (oldScene == scene) {
243 // Nothing to do
244 return;
245 }
246 // RT-21465, RT-28490
247 // We don't support scene changes in full-screen mode.
248 exitFullScreen();
249 super.setScene(scene);
250 if (scene != null) {
251 GlassScene newScene = getViewScene();
252 View view = newScene.getPlatformView();
253 QuantumToolkit.runWithRenderLock(() -> {
254 platformWindow.setView(view);
255 if (oldScene != null) oldScene.updateSceneState();
256 newScene.updateSceneState();
257 return null;
258 });
259 requestFocus();
260 } else {
261 QuantumToolkit.runWithRenderLock(() -> {
262 // platformWindow can be null here, if this window is owned,
263 // and its owner is being closed.
264 if (platformWindow != null) {
265 platformWindow.setView(null);
266 }
267 if (oldScene != null) {
268 oldScene.updateSceneState();
269 }
270 return null;
271 });
272 }
273 if (oldScene != null) {
274 ViewPainter painter = ((ViewScene)oldScene).getPainter();
275 QuantumRenderer.getInstance().disposePresentable(painter.presentable); // latched on RT
276 }
277 }
278
279 @Override public void setBounds(float x, float y, boolean xSet, boolean ySet,
280 float w, float h, float cw, float ch,
281 float xGravity, float yGravity)
282 {
283 if (isAppletStage) {
284 xSet = ySet = false;
285 }
286 platformWindow.setBounds((int)x, (int)y, xSet, ySet,
287 (int)w, (int)h, (int)cw, (int)ch,
288 xGravity, yGravity);
289 }
290
291 @Override public void setMinimumSize(int minWidth, int minHeight) {
292 platformWindow.setMinimumSize(minWidth, minHeight);
293 }
294
295 @Override public void setMaximumSize(int maxWidth, int maxHeight) {
296 platformWindow.setMaximumSize(maxWidth, maxHeight);
297 }
298
299 static Image findBestImage(java.util.List icons, int width, int height) {
300 Image image = null;
301 double bestSimilarity = 3; //Impossibly high value
302 for (Object icon : icons) {
303 //Iterate imageList looking for best matching image.
304 //'Similarity' measure is defined as good scale factor and small insets.
305 //best possible similarity is 0 (no scale, no insets).
306 //It's found by experimentation that good-looking results are achieved
307 //with scale factors x1, x3/4, x2/3, xN, x1/N.
308 //Check to make sure the image/image format is correct.
309 Image im = (Image)icon;
310 if (im == null || !(im.getPixelFormat() == PixelFormat.BYTE_RGB ||
311 im.getPixelFormat() == PixelFormat.BYTE_BGRA_PRE ||
312 im.getPixelFormat() == PixelFormat.BYTE_GRAY))
313 {
314 continue;
315 }
316
317 int iw = im.getWidth();
318 int ih = im.getHeight();
319
320 if (iw > 0 && ih > 0) {
321 //Calc scale factor
322 double scaleFactor = Math.min((double)width / (double)iw,
323 (double)height / (double)ih);
324 //Calculate scaled image dimensions
325 //adjusting scale factor to nearest "good" value
326 int adjw;
327 int adjh;
328 double scaleMeasure = 1; //0 - best (no) scale, 1 - impossibly bad
329 if (scaleFactor >= 2) {
330 //Need to enlarge image more than twice
331 //Round down scale factor to multiply by integer value
332 scaleFactor = Math.floor(scaleFactor);
333 adjw = iw * (int)scaleFactor;
334 adjh = ih * (int)scaleFactor;
335 scaleMeasure = 1.0 - 0.5 / scaleFactor;
336 } else if (scaleFactor >= 1) {
337 //Don't scale
338 scaleFactor = 1.0;
339 adjw = iw;
340 adjh = ih;
341 scaleMeasure = 0;
342 } else if (scaleFactor >= 0.75) {
343 //Multiply by 3/4
344 scaleFactor = 0.75;
345 adjw = iw * 3 / 4;
346 adjh = ih * 3 / 4;
347 scaleMeasure = 0.3;
348 } else if (scaleFactor >= 0.6666) {
349 //Multiply by 2/3
350 scaleFactor = 0.6666;
351 adjw = iw * 2 / 3;
352 adjh = ih * 2 / 3;
353 scaleMeasure = 0.33;
354 } else {
355 //Multiply size by 1/scaleDivider
356 //where scaleDivider is minimum possible integer
357 //larger than 1/scaleFactor
358 double scaleDivider = Math.ceil(1.0 / scaleFactor);
359 scaleFactor = 1.0 / scaleDivider;
360 adjw = (int)Math.round((double)iw / scaleDivider);
361 adjh = (int)Math.round((double)ih / scaleDivider);
362 scaleMeasure = 1.0 - 1.0 / scaleDivider;
363 }
364 double similarity = ((double)width - (double)adjw) / (double)width +
365 ((double)height - (double)adjh) / (double)height + //Large padding is bad
366 scaleMeasure; //Large rescale is bad
367 if (similarity < bestSimilarity) {
368 bestSimilarity = similarity;
369 image = im;
370 }
371 if (similarity == 0) break;
372 }
373 }
374 return image;
375 }
376
377 @Override public void setIcons(java.util.List icons) {
378
379 int SMALL_ICON_HEIGHT = 32;
380 int SMALL_ICON_WIDTH = 32;
381 if (PlatformUtil.isMac()) { //Mac Sized Icons
382 SMALL_ICON_HEIGHT = 128;
383 SMALL_ICON_WIDTH = 128;
384 } else if (PlatformUtil.isWindows()) { //Windows Sized Icons
385 SMALL_ICON_HEIGHT = 32;
386 SMALL_ICON_WIDTH = 32;
387 } else if (PlatformUtil.isLinux()) { //Linux icons
388 SMALL_ICON_HEIGHT = 128;
389 SMALL_ICON_WIDTH = 128;
390 }
391
392 if (icons == null || icons.size() < 1) { //no icons passed in
393 platformWindow.setIcon(null);
394 return;
395 }
396
397 Image image = findBestImage(icons, SMALL_ICON_WIDTH, SMALL_ICON_HEIGHT);
398 if (image == null) {
399 //No images were found, possibly all are broken
400 return;
401 }
402
403 PushbroomScaler scaler = ScalerFactory.createScaler(image.getWidth(), image.getHeight(),
404 image.getBytesPerPixelUnit(),
405 SMALL_ICON_WIDTH, SMALL_ICON_HEIGHT, true);
406
407 //shrink the image and convert the format to INT_ARGB_PRE
408 ByteBuffer buf = (ByteBuffer) image.getPixelBuffer();
409 byte bytes[] = new byte[buf.limit()];
410
411 int iheight = image.getHeight();
412
413 //Iterate through each scanline of the image
414 //and pass it one at a time to the scaling object
415 for (int z = 0; z < iheight; z++) {
416 buf.position(z*image.getScanlineStride());
417 buf.get(bytes, 0, image.getScanlineStride());
418 scaler.putSourceScanline(bytes, 0);
419 }
420
421 buf.rewind();
422
423 final Image img = image.iconify(scaler.getDestination(), SMALL_ICON_WIDTH, SMALL_ICON_HEIGHT);
424 platformWindow.setIcon(PixelUtils.imageToPixels(img));
425 }
426
427 @Override public void setTitle(String title) {
428 platformWindow.setTitle(title);
429 }
430
431 @Override public void setVisible(final boolean visible) {
432 // Before setting visible to false on the native window, we unblock
433 // other windows.
434 if (!visible) {
435 removeActiveWindow(this);
436 if (modality == Modality.WINDOW_MODAL) {
437 if (owner != null && owner instanceof WindowStage) {
438 ((WindowStage) owner).setEnabled(true);
439 }
440 } else if (modality == Modality.APPLICATION_MODAL) {
441 windowsSetEnabled(true);
442 } else {
443 // Note: This method is required to workaround a glass issue
444 // mentioned in RT-12607
445 // If the hiding stage is unfocusable (i.e. it's a PopupStage),
446 // then we don't do this to avoid stealing the focus.
447 if (!isPopupStage && owner != null && owner instanceof WindowStage) {
448 WindowStage ownerStage = (WindowStage)owner;
449 ownerStage.requestToFront();
450 }
451 }
452 }
453 QuantumToolkit.runWithRenderLock(() -> {
454 // platformWindow can be null here, if this window is owned,
455 // and its owner is being closed.
456 if (platformWindow != null) {
457 platformWindow.setVisible(visible);
458 }
459 super.setVisible(visible);
460 return null;
461 });
462 // After setting visible to true on the native window, we block
463 // other windows.
464 if (visible) {
465 if (modality == Modality.WINDOW_MODAL) {
466 if (owner != null && owner instanceof WindowStage) {
467 ((WindowStage) owner).setEnabled(false);
468 }
469 } else if (modality == Modality.APPLICATION_MODAL) {
470 windowsSetEnabled(false);
471 }
472 if (isAppletStage && null != appletWindow) {
473 appletWindow.assertStageOrder();
474 }
475 }
476
477 applyFullScreen();
478 }
479
480 @Override boolean isVisible() {
481 return platformWindow.isVisible();
482 }
483
484 @Override public void setOpacity(float opacity) {
485 platformWindow.setAlpha(opacity);
486 GlassScene gs = getScene();
487 if (gs != null) {
488 gs.entireSceneNeedsRepaint();
489 }
490 }
491
492 public boolean needsUpdateWindow() {
493 return transparent && (Application.GetApplication().shouldUpdateWindow());
494 }
495
496 @Override public void setIconified(boolean iconified) {
497 if (platformWindow.isMinimized() == iconified) {
498 return;
499 }
500 platformWindow.minimize(iconified);
501 }
502
503 @Override public void setMaximized(boolean maximized) {
504 if (platformWindow.isMaximized() == maximized) {
505 return;
506 }
507 platformWindow.maximize(maximized);
508 }
509
510 @Override
511 public void setAlwaysOnTop(boolean alwaysOnTop) {
512 // The securityDialog flag takes precedence over alwaysOnTop
513 if (securityDialog) return;
514
515 if (alwaysOnTop) {
516 if (hasPermission(alwaysOnTopPermission)) {
517 platformWindow.setLevel(Level.FLOATING);
518 }
519 } else {
520 platformWindow.setLevel(Level.NORMAL);
521 }
522
523 }
524
525 @Override public void setResizable(boolean resizable) {
526 platformWindow.setResizable(resizable);
527 // note: for child windows this is ignored and we fail silently
528 }
529
530 // Return true if this stage is trusted for full screen - doesn't have a
531 // security manager, or a permission check doesn't result in a security
532 // exeception.
533 boolean isTrustedFullScreen() {
534 return hasPermission(fullScreenPermission);
535 }
536
537 // Safely exit full screen
538 void exitFullScreen() {
539 setFullScreen(false);
540 }
541
542 boolean isApplet() {
543 return isPrimaryStage && null != appletWindow;
544 }
545
546 private boolean hasPermission(Permission perm) {
547 try {
548 if (System.getSecurityManager() != null) {
549 getAccessControlContext().checkPermission(perm);
550 }
551 return true;
552 } catch (AccessControlException ae) {
553 return false;
554 }
555 }
556
557 // We may need finer-grained permissions in the future, but for
558 // now AllPermission is good enough to do the job we need, such
559 // as fullscreen support for signed/unsigned application.
560 private static final Permission fullScreenPermission = new AllPermission();
561 private static final Permission alwaysOnTopPermission = new AllPermission();
562
563 private boolean fullScreenFromUserEvent = false;
564
565 private KeyCombination savedFullScreenExitKey = null;
566
567 public final KeyCombination getSavedFullScreenExitKey() {
568 return savedFullScreenExitKey;
569 }
570
571 private void applyFullScreen() {
572 if (platformWindow == null) {
573 // applyFullScreen() can be called from setVisible(false), while the
574 // platformWindow has already been destroyed.
575 return;
576 }
577 View v = platformWindow.getView();
578 if (isVisible() && v != null && v.isInFullscreen() != isInFullScreen) {
579 if (isInFullScreen) {
580 // Check whether app is full screen trusted or flag is set
581 // indicating that the fullscreen request came from an input
582 // event handler.
583 // If not notify the stageListener to reset fullscreen to false.
584 final boolean isTrusted = isTrustedFullScreen();
585 if (!isTrusted && !fullScreenFromUserEvent) {
586 exitFullScreen();
587 } else {
588 v.enterFullscreen(false, false, false);
589 if (warning != null && warning.inWarningTransition()) {
590 warning.setView(getViewScene());
591 } else {
592 boolean showWarning = true;
593
594 KeyCombination key = null;
595 String exitMessage = null;
596
597 if (isTrusted && (fxStage != null)) {
598 // copy the user set definitions for later use.
599 key = fxStage.getFullScreenExitKeyCombination();
600
601 exitMessage = fxStage.getFullScreenExitHint();
602 }
603
604 savedFullScreenExitKey =
605 key == null
606 ? defaultFullScreenExitKeycombo
607 : key;
608
609 if (
610 // the hint is ""
611 "".equals(exitMessage) ||
612 // if the key is NO_MATCH
613 (savedFullScreenExitKey.equals(KeyCombination.NO_MATCH))
614 ) {
615 showWarning = false;
616 }
617
618 // the hint is not set, use the key for the message
619 if (showWarning && exitMessage == null) {
620 if (key == null) {
621 exitMessage = RESOURCES.getString("OverlayWarningESC");
622 } else {
623 String f = RESOURCES.getString("OverlayWarningKey");
624 exitMessage = f.format(f, savedFullScreenExitKey.toString());
625 }
626 }
627
628 if (showWarning && warning == null) {
629 setWarning(new OverlayWarning(getViewScene()));
630 }
631
632 if (showWarning && warning != null) {
633 warning.warn(exitMessage);
634 }
635 }
636 }
637 } else {
638 if (warning != null) {
639 warning.cancel();
640 setWarning(null);
641 }
642 v.exitFullscreen(false);
643 }
644 // Reset flag once we are done process fullscreen
645 fullScreenFromUserEvent = false;
646 } else if (!isVisible() && warning != null) {
647 // if the window is closed - re-open with fresh warning
648 warning.cancel();
649 setWarning(null);
650 }
651 }
652
653 void setWarning(OverlayWarning newWarning) {
654 this.warning = newWarning;
655 getViewScene().synchroniseOverlayWarning();
656 }
657
658 OverlayWarning getWarning() {
659 return warning;
660 }
661
662 @Override public void setFullScreen(boolean fullScreen) {
663 if (isInFullScreen == fullScreen) {
664 return;
665 }
666
667 // Set a flag indicating whether this method was called from
668 // an input event handler.
669 if (isInEventHandler()) {
670 fullScreenFromUserEvent = true;
671 }
672
673 GlassStage fsWindow = activeFSWindow.get();
674 if (fullScreen && (fsWindow != null)) {
675 fsWindow.setFullScreen(false);
676 }
677 isInFullScreen = fullScreen;
678 applyFullScreen();
679 if (fullScreen) {
680 activeFSWindow.set(this);
681 }
682 }
683
684 void fullscreenChanged(final boolean fs) {
685 if (!fs) {
686 if (activeFSWindow.compareAndSet(this, null)) {
687 isInFullScreen = false;
688 }
689 } else {
690 isInFullScreen = true;
691 activeFSWindow.set(this);
692 }
693 AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
694 if (stageListener != null) {
695 stageListener.changedFullscreen(fs);
696 }
697 return null;
698 }, getAccessControlContext());
699 }
700
701 @Override public void toBack() {
702 platformWindow.toBack();
703 if (isAppletStage && null != appletWindow) {
704 appletWindow.assertStageOrder();
705 }
706 }
707
708 @Override public void toFront() {
709 platformWindow.requestFocus(); // RT-17836
710 platformWindow.toFront();
711 if (isAppletStage && null != appletWindow) {
712 appletWindow.assertStageOrder();
713 }
714 }
715
716 @Override public void close() {
717 super.close();
718 QuantumToolkit.runWithRenderLock(() -> {
719 // prevents closing a closed platform window
720 if (platformWindow != null) {
721 platformWindows.remove(platformWindow);
722 platformWindow.close();
723 platformWindow = null;
724 }
725 GlassScene oldScene = getViewScene();
726 if (oldScene != null) {
727 oldScene.updateSceneState();
728 }
729 return null;
730 });
731 }
732
733 // setPlatformWindowClosed is only set upon receiving platform window has
734 // closed notification. This state is necessary to prevent the platform
735 // window from being closed more than once.
736 void setPlatformWindowClosed() {
737 platformWindow = null;
738 }
739
740 static void addActiveWindow(WindowStage window) {
741 activeWindows.remove(window);
742 activeWindows.add(window);
743 }
744
745 static void removeActiveWindow(WindowStage window) {
746 activeWindows.remove(window);
747 }
748
749 final void handleFocusDisabled() {
750 if (activeWindows.isEmpty()) {
751 return;
752 }
753 WindowStage window = activeWindows.get(activeWindows.size() - 1);
754 window.setIconified(false);
755 window.requestToFront();
756 window.requestFocus();
757 }
758
759 @Override public boolean grabFocus() {
760 return platformWindow.grabFocus();
761 }
762
763 @Override public void ungrabFocus() {
764 platformWindow.ungrabFocus();
765 }
766
767 @Override public void requestFocus() {
768 platformWindow.requestFocus();
769 }
770
771 @Override public void requestFocus(FocusCause cause) {
772 switch (cause) {
773 case TRAVERSED_FORWARD:
774 platformWindow.requestFocus(WindowEvent.FOCUS_GAINED_FORWARD);
775 break;
776 case TRAVERSED_BACKWARD:
777 platformWindow.requestFocus(WindowEvent.FOCUS_GAINED_BACKWARD);
778 break;
779 case ACTIVATED:
780 platformWindow.requestFocus(WindowEvent.FOCUS_GAINED);
781 break;
782 case DEACTIVATED:
783 platformWindow.requestFocus(WindowEvent.FOCUS_LOST);
784 break;
785 }
786 }
787
788 @Override
789 protected void setPlatformEnabled(boolean enabled) {
790 super.setPlatformEnabled(enabled);
791 platformWindow.setEnabled(enabled);
792 if (enabled) {
793 // Check if window is really enabled - to handle nested case
794 if (platformWindow.isEnabled()) {
795 requestToFront();
796 }
797 } else {
798 removeActiveWindow(this);
799 }
800 }
801
802 void setEnabled(boolean enabled) {
803 if ((owner != null) && (owner instanceof WindowStage)) {
804 ((WindowStage) owner).setEnabled(enabled);
805 }
806 /*
807 * RT-17588 - exit if stage is closed from under us as
808 * any further access to the Glass layer
809 * will throw an exception
810 */
811 if (enabled && platformWindow.isClosed()) {
812 return;
813 }
814 setPlatformEnabled(enabled);
815 if (enabled) {
816 if (isAppletStage && null != appletWindow) {
817 appletWindow.assertStageOrder();
818 }
819 }
820 }
821
822 // Note: This method is required to workaround a glass issue mentioned in RT-12607
823 protected void requestToFront() {
824 platformWindow.toFront();
825 platformWindow.requestFocus();
826 }
827
828 public void setInEventHandler(boolean inEventHandler) {
829 this.inEventHandler = inEventHandler;
830 }
831
832 public boolean isInEventHandler() {
833 return inEventHandler;
834 }
835
836 @Override
837 public void requestInput(String text, int type, double width, double height,
838 double Mxx, double Mxy, double Mxz, double Mxt,
839 double Myx, double Myy, double Myz, double Myt,
840 double Mzx, double Mzy, double Mzz, double Mzt) {
841 platformWindow.requestInput(text, type, width, height,
842 Mxx, Mxy, Mxz, Mxt,
843 Myx, Myy, Myz, Myt,
844 Mzx, Mzy, Mzz, Mzt);
845 }
846
847 @Override
848 public void releaseInput() {
849 platformWindow.releaseInput();
850 }
851
852 @Override public void setRTL(boolean b) {
853 rtl = b;
854 }
855
856 }