1 /*
2 * Copyright (c) 2011, 2015, 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 javafx.scene.control.skin;
27
28 import com.sun.javafx.scene.control.behavior.BehaviorBase;
29 import com.sun.javafx.scene.control.behavior.TextAreaBehavior;
30 import com.sun.javafx.scene.control.behavior.TextInputControlBehavior;
31 import com.sun.javafx.scene.control.skin.Utils;
32 import javafx.beans.binding.BooleanBinding;
33 import javafx.beans.binding.DoubleBinding;
34 import javafx.beans.binding.ObjectBinding;
35 import javafx.beans.binding.StringBinding;
36 import javafx.beans.property.DoubleProperty;
37 import javafx.beans.property.SimpleDoubleProperty;
38 import javafx.beans.value.ObservableBooleanValue;
39 import javafx.beans.value.ObservableDoubleValue;
40 import javafx.event.EventHandler;
41 import javafx.geometry.Bounds;
42 import javafx.geometry.HPos;
43 import javafx.geometry.Point2D;
44 import javafx.geometry.Rectangle2D;
45 import javafx.scene.AccessibleAttribute;
46 import javafx.scene.Group;
47 import javafx.scene.Node;
48 import javafx.scene.control.Accordion;
49 import javafx.scene.control.Button;
50 import javafx.scene.control.Control;
51 import javafx.scene.control.IndexRange;
52 import javafx.scene.control.PasswordField;
53 import javafx.scene.control.TextField;
54 import javafx.scene.input.MouseEvent;
55 import javafx.scene.layout.Pane;
56 import javafx.scene.paint.Color;
57 import javafx.scene.paint.Paint;
58 import javafx.scene.shape.Path;
59 import javafx.scene.shape.PathElement;
60 import javafx.scene.shape.Rectangle;
61 import javafx.scene.text.Text;
62 import java.util.List;
63 import com.sun.javafx.scene.control.behavior.TextFieldBehavior;
64 import com.sun.javafx.scene.control.behavior.PasswordFieldBehavior;
65 import com.sun.javafx.scene.text.HitInfo;
66
67 /**
68 * Default skin implementation for the {@link TextField} control.
69 *
70 * @see TextField
71 * @since 9
72 */
73 public class TextFieldSkin extends TextInputControlSkin<TextField> {
74
75 /**************************************************************************
76 *
77 * Private fields
78 *
79 **************************************************************************/
80
81 private final TextFieldBehavior behavior;
82
83 /**
84 * This group contains the text, caret, and selection rectangle.
85 * It is clipped. The textNode, selectionHighlightPath, and
195 if (SHOW_HANDLES) {
196 handleGroup = new Group();
197 handleGroup.setManaged(false);
198 handleGroup.getChildren().addAll(caretHandle, selectionHandle1, selectionHandle2);
199 getChildren().add(handleGroup);
200 }
201
202 // Add text
203 textNode.setManaged(false);
204 textNode.getStyleClass().add("text");
205 textNode.fontProperty().bind(control.fontProperty());
206
207 textNode.layoutXProperty().bind(textTranslateX);
208 textNode.textProperty().bind(new StringBinding() {
209 { bind(control.textProperty()); }
210 @Override protected String computeValue() {
211 return maskText(control.textProperty().getValueSafe());
212 }
213 });
214 textNode.fillProperty().bind(textFillProperty());
215 textNode.impl_selectionFillProperty().bind(new ObjectBinding<Paint>() {
216 { bind(highlightTextFillProperty(), textFillProperty(), control.focusedProperty()); }
217 @Override protected Paint computeValue() {
218 return control.isFocused() ? highlightTextFillProperty().get() : textFillProperty().get();
219 }
220 });
221 // updated by listener on caretPosition to ensure order
222 updateTextNodeCaretPos(control.getCaretPosition());
223 control.selectionProperty().addListener(observable -> {
224 updateSelection();
225 });
226
227 // Add selection
228 selectionHighlightPath.setManaged(false);
229 selectionHighlightPath.setStroke(null);
230 selectionHighlightPath.layoutXProperty().bind(textTranslateX);
231 selectionHighlightPath.visibleProperty().bind(control.anchorProperty().isNotEqualTo(control.caretPositionProperty()).and(control.focusedProperty()));
232 selectionHighlightPath.fillProperty().bind(highlightFillProperty());
233 textNode.impl_selectionShapeProperty().addListener(observable -> {
234 updateSelection();
235 });
236
237 // Add caret
238 caretPath.setManaged(false);
239 caretPath.setStrokeWidth(1);
240 caretPath.fillProperty().bind(textFillProperty());
241 caretPath.strokeProperty().bind(textFillProperty());
242
243 // modifying visibility of the caret forces a layout-pass (RT-32373), so
244 // instead we modify the opacity.
245 caretPath.opacityProperty().bind(new DoubleBinding() {
246 { bind(caretVisibleProperty()); }
247 @Override protected double computeValue() {
248 return caretVisibleProperty().get() ? 1.0 : 0.0;
249 }
250 });
251 caretPath.layoutXProperty().bind(textTranslateX);
252 textNode.impl_caretShapeProperty().addListener(observable -> {
253 caretPath.getElements().setAll(textNode.impl_caretShapeProperty().get());
254 if (caretPath.getElements().size() == 0) {
255 // The caret pos is invalid.
256 updateTextNodeCaretPos(control.getCaretPosition());
257 } else if (caretPath.getElements().size() == 4) {
258 // The caret is split. Ignore and keep the previous width value.
259 } else {
260 caretWidth = Math.round(caretPath.getLayoutBounds().getWidth());
261 }
262 });
263
264 // Be sure to get the control to request layout when the font changes,
265 // since this will affect the pref height and pref width.
266 control.fontProperty().addListener(observable -> {
267 // I do both so that any cached values for prefWidth/height are cleared.
268 // The problem is that the skin is unmanaged and so calling request layout
269 // doesn't walk up the tree all the way. I think....
270 control.requestLayout();
271 getSkinnable().requestLayout();
272 });
273
314 createPromptNode();
315 control.requestLayout();
316 });
317
318 if (SHOW_HANDLES) {
319 selectionHandle1.setRotate(180);
320
321 EventHandler<MouseEvent> handlePressHandler = e -> {
322 pressX = e.getX();
323 pressY = e.getY();
324 e.consume();
325 };
326
327 caretHandle.setOnMousePressed(handlePressHandler);
328 selectionHandle1.setOnMousePressed(handlePressHandler);
329 selectionHandle2.setOnMousePressed(handlePressHandler);
330
331 caretHandle.setOnMouseDragged(e -> {
332 Point2D p = new Point2D(caretHandle.getLayoutX() + e.getX() + pressX - textNode.getLayoutX(),
333 caretHandle.getLayoutY() + e.getY() - pressY - 6);
334 HitInfo hit = textNode.impl_hitTestChar(p);
335 positionCaret(hit, false);
336 e.consume();
337 });
338
339 selectionHandle1.setOnMouseDragged(new EventHandler<MouseEvent>() {
340 @Override public void handle(MouseEvent e) {
341 TextField control = getSkinnable();
342 Point2D tp = textNode.localToScene(0, 0);
343 Point2D p = new Point2D(e.getSceneX() - tp.getX() + 10/*??*/ - pressX + selectionHandle1.getWidth() / 2,
344 e.getSceneY() - tp.getY() - pressY - 6);
345 HitInfo hit = textNode.impl_hitTestChar(p);
346 int pos = hit.getCharIndex();
347 if (control.getAnchor() < control.getCaretPosition()) {
348 // Swap caret and anchor
349 control.selectRange(control.getCaretPosition(), control.getAnchor());
350 }
351 if (pos >= 0) {
352 if (pos >= control.getAnchor() - 1) {
353 hit.setCharIndex(Math.max(0, control.getAnchor() - 1));
354 }
355 positionCaret(hit, true);
356 }
357 e.consume();
358 }
359 });
360
361 selectionHandle2.setOnMouseDragged(new EventHandler<MouseEvent>() {
362 @Override public void handle(MouseEvent e) {
363 TextField control = getSkinnable();
364 Point2D tp = textNode.localToScene(0, 0);
365 Point2D p = new Point2D(e.getSceneX() - tp.getX() + 10/*??*/ - pressX + selectionHandle2.getWidth() / 2,
366 e.getSceneY() - tp.getY() - pressY - 6);
367 HitInfo hit = textNode.impl_hitTestChar(p);
368 int pos = hit.getCharIndex();
369 if (control.getAnchor() > control.getCaretPosition()) {
370 // Swap caret and anchor
371 control.selectRange(control.getCaretPosition(), control.getAnchor());
372 }
373 if (pos > 0) {
374 if (pos <= control.getAnchor()) {
375 hit.setCharIndex(Math.min(control.getAnchor() + 1, control.getLength()));
376 }
377 positionCaret(hit, true);
378 }
379 e.consume();
380 }
381 });
382 }
383 }
384
385
386
387 /***************************************************************************
388 * *
389 * Public API *
390 * *
391 **************************************************************************/
392
393 /** {@inheritDoc} */
394 @Override public void dispose() {
395 super.dispose();
396
397 if (behavior != null) {
461 * Call this implementation from behavior classes instead of the
462 * one provided on TextInputControl to ensure that the text
463 * scrolls as needed.
464 *
465 * @param previous whether to delete the preceding character.
466 */
467 public void deleteChar(boolean previous) {
468 final double textMaxXOld = textNode.getBoundsInParent().getMaxX();
469 final double caretMaxXOld = caretPath.getLayoutBounds().getMaxX() + textTranslateX.get();
470 if (previous ? getSkinnable().deletePreviousChar() : getSkinnable().deleteNextChar()) {
471 scrollAfterDelete(textMaxXOld, caretMaxXOld);
472 }
473 }
474
475 // Public for behavior
476 /**
477 * Performs a hit test, mapping point to index in the content.
478 *
479 * @param x the x coordinate of the point.
480 * @param y the y coordinate of the point.
481 * @return a {@code TextPosInfo} object describing the index and forward bias.
482 */
483 public TextPosInfo getIndex(double x, double y) {
484 // adjust the event to be in the same coordinate space as the
485 // text content of the textInputControl
486 Point2D p = new Point2D(x - textTranslateX.get() - snappedLeftInset(),
487 y - snappedTopInset());
488 return new TextPosInfo(textNode.impl_hitTestChar(p));
489 }
490
491 // Public for behavior
492 /**
493 * Moves the caret to the specified position.
494 *
495 * @param hit the new position and forward bias of the caret.
496 * @param select whether to extend selection to the new position.
497 */
498 public void positionCaret(TextPosInfo hit, boolean select) {
499 TextField textField = getSkinnable();
500 int pos = Utils.getHitInsertionIndex(hit, textField.textProperty().getValueSafe());
501
502 if (select) {
503 textField.selectPositionCaret(pos);
504 } else {
505 textField.positionCaret(pos);
506 }
507
508 setForwardBias(hit.isLeading());
509 }
510
511 private void positionCaret(HitInfo hit, boolean select) {
512 positionCaret(new TextPosInfo(hit), select);
513 }
514
515 /** {@inheritDoc} */
516 @Override public Rectangle2D getCharacterBounds(int index) {
517 double x, y;
518 double width, height;
519 if (index == textNode.getText().length()) {
520 Bounds textNodeBounds = textNode.getBoundsInLocal();
521 x = textNodeBounds.getMaxX();
522 y = 0;
523 width = 0;
524 height = textNodeBounds.getMaxY();
525 } else {
526 characterBoundingPath.getElements().clear();
527 characterBoundingPath.getElements().addAll(textNode.impl_getRangeShape(index, index + 1));
528 characterBoundingPath.setLayoutX(textNode.getLayoutX());
529 characterBoundingPath.setLayoutY(textNode.getLayoutY());
530
531 Bounds bounds = characterBoundingPath.getBoundsInLocal();
532
533 x = bounds.getMinX();
534 y = bounds.getMinY();
535 // Sometimes the bounds is empty, in which case we must ignore the width/height
536 width = bounds.isEmpty() ? 0 : bounds.getWidth();
537 height = bounds.isEmpty() ? 0 : bounds.getHeight();
538 }
539
540 Bounds textBounds = textGroup.getBoundsInParent();
541
542 return new Rectangle2D(x + textBounds.getMinX() + textTranslateX.get(),
543 y + textBounds.getMinY(), width, height);
544 }
545
546 /** {@inheritDoc} */
547 @Override protected PathElement[] getUnderlineShape(int start, int end) {
548 return textNode.impl_getUnderlineShape(start, end);
549 }
550
551 /** {@inheritDoc} */
552 @Override protected PathElement[] getRangeShape(int start, int end) {
553 return textNode.impl_getRangeShape(start, end);
554 }
555
556 /** {@inheritDoc} */
557 @Override protected void addHighlight(List<? extends Node> nodes, int start) {
558 textGroup.getChildren().addAll(nodes);
559 }
560
561 /** {@inheritDoc} */
562 @Override protected void removeHighlight(List<? extends Node> nodes) {
563 textGroup.getChildren().removeAll(nodes);
564 }
565
566 /** {@inheritDoc} */
567 @Override public void moveCaret(TextUnit unit, Direction dir, boolean select) {
568 switch (unit) {
569 case CHARACTER:
570 switch (dir) {
571 case LEFT:
572 case RIGHT:
573 nextCharacterVisually(dir == Direction.RIGHT);
580 throw new IllegalArgumentException(""+unit);
581 }
582 }
583
584 private void nextCharacterVisually(boolean moveRight) {
585 if (isRTL()) {
586 // Text node is mirrored.
587 moveRight = !moveRight;
588 }
589
590 Bounds caretBounds = caretPath.getLayoutBounds();
591 if (caretPath.getElements().size() == 4) {
592 // The caret is split
593 // TODO: Find a better way to get the primary caret position
594 // instead of depending on the internal implementation.
595 // See RT-25465.
596 caretBounds = new Path(caretPath.getElements().get(0), caretPath.getElements().get(1)).getLayoutBounds();
597 }
598 double hitX = moveRight ? caretBounds.getMaxX() : caretBounds.getMinX();
599 double hitY = (caretBounds.getMinY() + caretBounds.getMaxY()) / 2;
600 HitInfo hit = textNode.impl_hitTestChar(new Point2D(hitX, hitY));
601 Path charShape = new Path(textNode.impl_getRangeShape(hit.getCharIndex(), hit.getCharIndex() + 1));
602 if ((moveRight && charShape.getLayoutBounds().getMaxX() > caretBounds.getMaxX()) ||
603 (!moveRight && charShape.getLayoutBounds().getMinX() < caretBounds.getMinX())) {
604 hit.setLeading(!hit.isLeading());
605 }
606 positionCaret(hit, false);
607 }
608
609 /** {@inheritDoc} */
610 @Override protected void layoutChildren(final double x, final double y,
611 final double w, final double h) {
612 super.layoutChildren(x, y, w, h);
613
614 if (textNode != null) {
615 double textY;
616 final Bounds textNodeBounds = textNode.getLayoutBounds();
617 final double ascent = textNode.getBaselineOffset();
618 final double descent = textNodeBounds.getHeight() - ascent;
619
620 switch (getSkinnable().getAlignment().getVpos()) {
621 case TOP:
622 textY = ascent;
623 break;
624
625 case CENTER:
626 textY = (ascent + textGroup.getHeight() - descent) / 2;
699 case OFFSET_AT_POINT:
700 return textNode.queryAccessibleAttribute(attribute, parameters);
701 default: return super.queryAccessibleAttribute(attribute, parameters);
702 }
703 }
704
705
706
707 /**************************************************************************
708 *
709 * Private implementation
710 *
711 **************************************************************************/
712
713 TextInputControlBehavior getBehavior() {
714 return behavior;
715 }
716
717 private void updateTextNodeCaretPos(int pos) {
718 if (pos == 0 || isForwardBias()) {
719 textNode.setImpl_caretPosition(pos);
720 } else {
721 textNode.setImpl_caretPosition(pos - 1);
722 }
723 textNode.impl_caretBiasProperty().set(isForwardBias());
724 }
725
726 private void createPromptNode() {
727 if (promptNode != null || !usePromptText.get()) return;
728
729 promptNode = new Text();
730 textGroup.getChildren().add(0, promptNode);
731 promptNode.setManaged(false);
732 promptNode.getStyleClass().add("text");
733 promptNode.visibleProperty().bind(usePromptText);
734 promptNode.fontProperty().bind(getSkinnable().fontProperty());
735
736 promptNode.textProperty().bind(getSkinnable().promptTextProperty());
737 promptNode.fillProperty().bind(promptTextFillProperty());
738 updateSelection();
739 }
740
741 private void updateSelection() {
742 TextField textField = getSkinnable();
743 IndexRange newValue = textField.getSelection();
744
745 if (newValue == null || newValue.getLength() == 0) {
746 textNode.impl_selectionStartProperty().set(-1);
747 textNode.impl_selectionEndProperty().set(-1);
748 } else {
749 textNode.impl_selectionStartProperty().set(newValue.getStart());
750 // This intermediate value is needed to force selection shape layout.
751 textNode.impl_selectionEndProperty().set(newValue.getStart());
752 textNode.impl_selectionEndProperty().set(newValue.getEnd());
753 }
754
755 PathElement[] elements = textNode.impl_selectionShapeProperty().get();
756 if (elements == null) {
757 selectionHighlightPath.getElements().clear();
758 } else {
759 selectionHighlightPath.getElements().setAll(elements);
760 }
761
762 if (SHOW_HANDLES && newValue != null && newValue.getLength() > 0) {
763 int caretPos = textField.getCaretPosition();
764 int anchorPos = textField.getAnchor();
765
766 {
767 // Position the handle for the anchor. This could be handle1 or handle2.
768 // Do this before positioning the handle for the caret.
769 updateTextNodeCaretPos(anchorPos);
770 Bounds b = caretPath.getBoundsInParent();
771 if (caretPos < anchorPos) {
772 selectionHandle2.setLayoutX(b.getMinX() - selectionHandle2.getWidth() / 2);
773 } else {
774 selectionHandle1.setLayoutX(b.getMinX() - selectionHandle1.getWidth() / 2);
775 }
|
1 /*
2 * Copyright (c) 2011, 2016, 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 javafx.scene.control.skin;
27
28 import com.sun.javafx.scene.control.behavior.BehaviorBase;
29 import com.sun.javafx.scene.control.behavior.TextAreaBehavior;
30 import com.sun.javafx.scene.control.behavior.TextInputControlBehavior;
31 import javafx.beans.binding.BooleanBinding;
32 import javafx.beans.binding.DoubleBinding;
33 import javafx.beans.binding.ObjectBinding;
34 import javafx.beans.binding.StringBinding;
35 import javafx.beans.property.DoubleProperty;
36 import javafx.beans.property.SimpleDoubleProperty;
37 import javafx.beans.value.ObservableBooleanValue;
38 import javafx.beans.value.ObservableDoubleValue;
39 import javafx.event.EventHandler;
40 import javafx.geometry.Bounds;
41 import javafx.geometry.HPos;
42 import javafx.geometry.Point2D;
43 import javafx.geometry.Rectangle2D;
44 import javafx.scene.AccessibleAttribute;
45 import javafx.scene.Group;
46 import javafx.scene.Node;
47 import javafx.scene.control.Accordion;
48 import javafx.scene.control.Button;
49 import javafx.scene.control.Control;
50 import javafx.scene.control.IndexRange;
51 import javafx.scene.control.PasswordField;
52 import javafx.scene.control.TextField;
53 import javafx.scene.input.MouseEvent;
54 import javafx.scene.layout.Pane;
55 import javafx.scene.paint.Color;
56 import javafx.scene.paint.Paint;
57 import javafx.scene.shape.Path;
58 import javafx.scene.shape.PathElement;
59 import javafx.scene.shape.Rectangle;
60 import javafx.scene.text.Text;
61 import javafx.scene.text.HitInfo;
62 import java.util.List;
63 import com.sun.javafx.scene.control.behavior.TextFieldBehavior;
64 import com.sun.javafx.scene.control.behavior.PasswordFieldBehavior;
65
66 /**
67 * Default skin implementation for the {@link TextField} control.
68 *
69 * @see TextField
70 * @since 9
71 */
72 public class TextFieldSkin extends TextInputControlSkin<TextField> {
73
74 /**************************************************************************
75 *
76 * Private fields
77 *
78 **************************************************************************/
79
80 private final TextFieldBehavior behavior;
81
82 /**
83 * This group contains the text, caret, and selection rectangle.
84 * It is clipped. The textNode, selectionHighlightPath, and
194 if (SHOW_HANDLES) {
195 handleGroup = new Group();
196 handleGroup.setManaged(false);
197 handleGroup.getChildren().addAll(caretHandle, selectionHandle1, selectionHandle2);
198 getChildren().add(handleGroup);
199 }
200
201 // Add text
202 textNode.setManaged(false);
203 textNode.getStyleClass().add("text");
204 textNode.fontProperty().bind(control.fontProperty());
205
206 textNode.layoutXProperty().bind(textTranslateX);
207 textNode.textProperty().bind(new StringBinding() {
208 { bind(control.textProperty()); }
209 @Override protected String computeValue() {
210 return maskText(control.textProperty().getValueSafe());
211 }
212 });
213 textNode.fillProperty().bind(textFillProperty());
214 textNode.selectionFillProperty().bind(new ObjectBinding<Paint>() {
215 { bind(highlightTextFillProperty(), textFillProperty(), control.focusedProperty()); }
216 @Override protected Paint computeValue() {
217 return control.isFocused() ? highlightTextFillProperty().get() : textFillProperty().get();
218 }
219 });
220 // updated by listener on caretPosition to ensure order
221 updateTextNodeCaretPos(control.getCaretPosition());
222 control.selectionProperty().addListener(observable -> {
223 updateSelection();
224 });
225
226 // Add selection
227 selectionHighlightPath.setManaged(false);
228 selectionHighlightPath.setStroke(null);
229 selectionHighlightPath.layoutXProperty().bind(textTranslateX);
230 selectionHighlightPath.visibleProperty().bind(control.anchorProperty().isNotEqualTo(control.caretPositionProperty()).and(control.focusedProperty()));
231 selectionHighlightPath.fillProperty().bind(highlightFillProperty());
232 textNode.selectionShapeProperty().addListener(observable -> {
233 updateSelection();
234 });
235
236 // Add caret
237 caretPath.setManaged(false);
238 caretPath.setStrokeWidth(1);
239 caretPath.fillProperty().bind(textFillProperty());
240 caretPath.strokeProperty().bind(textFillProperty());
241
242 // modifying visibility of the caret forces a layout-pass (RT-32373), so
243 // instead we modify the opacity.
244 caretPath.opacityProperty().bind(new DoubleBinding() {
245 { bind(caretVisibleProperty()); }
246 @Override protected double computeValue() {
247 return caretVisibleProperty().get() ? 1.0 : 0.0;
248 }
249 });
250 caretPath.layoutXProperty().bind(textTranslateX);
251 textNode.caretShapeProperty().addListener(observable -> {
252 caretPath.getElements().setAll(textNode.caretShapeProperty().get());
253 if (caretPath.getElements().size() == 0) {
254 // The caret pos is invalid.
255 updateTextNodeCaretPos(control.getCaretPosition());
256 } else if (caretPath.getElements().size() == 4) {
257 // The caret is split. Ignore and keep the previous width value.
258 } else {
259 caretWidth = Math.round(caretPath.getLayoutBounds().getWidth());
260 }
261 });
262
263 // Be sure to get the control to request layout when the font changes,
264 // since this will affect the pref height and pref width.
265 control.fontProperty().addListener(observable -> {
266 // I do both so that any cached values for prefWidth/height are cleared.
267 // The problem is that the skin is unmanaged and so calling request layout
268 // doesn't walk up the tree all the way. I think....
269 control.requestLayout();
270 getSkinnable().requestLayout();
271 });
272
313 createPromptNode();
314 control.requestLayout();
315 });
316
317 if (SHOW_HANDLES) {
318 selectionHandle1.setRotate(180);
319
320 EventHandler<MouseEvent> handlePressHandler = e -> {
321 pressX = e.getX();
322 pressY = e.getY();
323 e.consume();
324 };
325
326 caretHandle.setOnMousePressed(handlePressHandler);
327 selectionHandle1.setOnMousePressed(handlePressHandler);
328 selectionHandle2.setOnMousePressed(handlePressHandler);
329
330 caretHandle.setOnMouseDragged(e -> {
331 Point2D p = new Point2D(caretHandle.getLayoutX() + e.getX() + pressX - textNode.getLayoutX(),
332 caretHandle.getLayoutY() + e.getY() - pressY - 6);
333 HitInfo hit = textNode.hitTest(p);
334 positionCaret(hit, false);
335 e.consume();
336 });
337
338 selectionHandle1.setOnMouseDragged(new EventHandler<MouseEvent>() {
339 @Override public void handle(MouseEvent e) {
340 TextField control = getSkinnable();
341 Point2D tp = textNode.localToScene(0, 0);
342 Point2D p = new Point2D(e.getSceneX() - tp.getX() + 10/*??*/ - pressX + selectionHandle1.getWidth() / 2,
343 e.getSceneY() - tp.getY() - pressY - 6);
344 HitInfo hit = textNode.hitTest(p);
345 if (control.getAnchor() < control.getCaretPosition()) {
346 // Swap caret and anchor
347 control.selectRange(control.getCaretPosition(), control.getAnchor());
348 }
349 int pos = hit.getInsertionIndex();
350 if (pos >= 0) {
351 if (pos >= control.getAnchor() - 1) {
352 pos = Math.max(0, control.getAnchor() - 1);
353 }
354 positionCaret(pos, hit.isLeading(), true);
355 }
356 e.consume();
357 }
358 });
359
360 selectionHandle2.setOnMouseDragged(new EventHandler<MouseEvent>() {
361 @Override public void handle(MouseEvent e) {
362 TextField control = getSkinnable();
363 Point2D tp = textNode.localToScene(0, 0);
364 Point2D p = new Point2D(e.getSceneX() - tp.getX() + 10/*??*/ - pressX + selectionHandle2.getWidth() / 2,
365 e.getSceneY() - tp.getY() - pressY - 6);
366 HitInfo hit = textNode.hitTest(p);
367 if (control.getAnchor() > control.getCaretPosition()) {
368 // Swap caret and anchor
369 control.selectRange(control.getCaretPosition(), control.getAnchor());
370 }
371 int pos = hit.getInsertionIndex();
372 if (pos > 0) {
373 if (pos <= control.getAnchor()) {
374 pos = Math.min(control.getAnchor() + 1, control.getLength());
375 }
376 positionCaret(pos, hit.isLeading(), true);
377 }
378 e.consume();
379 }
380 });
381 }
382 }
383
384
385
386 /***************************************************************************
387 * *
388 * Public API *
389 * *
390 **************************************************************************/
391
392 /** {@inheritDoc} */
393 @Override public void dispose() {
394 super.dispose();
395
396 if (behavior != null) {
460 * Call this implementation from behavior classes instead of the
461 * one provided on TextInputControl to ensure that the text
462 * scrolls as needed.
463 *
464 * @param previous whether to delete the preceding character.
465 */
466 public void deleteChar(boolean previous) {
467 final double textMaxXOld = textNode.getBoundsInParent().getMaxX();
468 final double caretMaxXOld = caretPath.getLayoutBounds().getMaxX() + textTranslateX.get();
469 if (previous ? getSkinnable().deletePreviousChar() : getSkinnable().deleteNextChar()) {
470 scrollAfterDelete(textMaxXOld, caretMaxXOld);
471 }
472 }
473
474 // Public for behavior
475 /**
476 * Performs a hit test, mapping point to index in the content.
477 *
478 * @param x the x coordinate of the point.
479 * @param y the y coordinate of the point.
480 * @return a {@code HitInfo} object describing the index and forward bias.
481 */
482 public HitInfo getIndex(double x, double y) {
483 // adjust the event to be in the same coordinate space as the
484 // text content of the textInputControl
485 Point2D p = new Point2D(x - textTranslateX.get() - snappedLeftInset(),
486 y - snappedTopInset());
487 return textNode.hitTest(p);
488 }
489
490 // Public for behavior
491 /**
492 * Moves the caret to the specified position.
493 *
494 * @param hit the new position and forward bias of the caret.
495 * @param select whether to extend selection to the new position.
496 */
497 public void positionCaret(HitInfo hit, boolean select) {
498 positionCaret(hit.getInsertionIndex(), hit.isLeading(), select);
499 }
500
501 private void positionCaret(int pos, boolean leading, boolean select) {
502 TextField textField = getSkinnable();
503 if (select) {
504 textField.selectPositionCaret(pos);
505 } else {
506 textField.positionCaret(pos);
507 }
508 setForwardBias(leading);
509 }
510
511 /** {@inheritDoc} */
512 @Override public Rectangle2D getCharacterBounds(int index) {
513 double x, y;
514 double width, height;
515 if (index == textNode.getText().length()) {
516 Bounds textNodeBounds = textNode.getBoundsInLocal();
517 x = textNodeBounds.getMaxX();
518 y = 0;
519 width = 0;
520 height = textNodeBounds.getMaxY();
521 } else {
522 characterBoundingPath.getElements().clear();
523 characterBoundingPath.getElements().addAll(textNode.rangeShape(index, index + 1));
524 characterBoundingPath.setLayoutX(textNode.getLayoutX());
525 characterBoundingPath.setLayoutY(textNode.getLayoutY());
526
527 Bounds bounds = characterBoundingPath.getBoundsInLocal();
528
529 x = bounds.getMinX();
530 y = bounds.getMinY();
531 // Sometimes the bounds is empty, in which case we must ignore the width/height
532 width = bounds.isEmpty() ? 0 : bounds.getWidth();
533 height = bounds.isEmpty() ? 0 : bounds.getHeight();
534 }
535
536 Bounds textBounds = textGroup.getBoundsInParent();
537
538 return new Rectangle2D(x + textBounds.getMinX() + textTranslateX.get(),
539 y + textBounds.getMinY(), width, height);
540 }
541
542 /** {@inheritDoc} */
543 @Override protected PathElement[] getUnderlineShape(int start, int end) {
544 return textNode.underlineShape(start, end);
545 }
546
547 /** {@inheritDoc} */
548 @Override protected PathElement[] getRangeShape(int start, int end) {
549 return textNode.rangeShape(start, end);
550 }
551
552 /** {@inheritDoc} */
553 @Override protected void addHighlight(List<? extends Node> nodes, int start) {
554 textGroup.getChildren().addAll(nodes);
555 }
556
557 /** {@inheritDoc} */
558 @Override protected void removeHighlight(List<? extends Node> nodes) {
559 textGroup.getChildren().removeAll(nodes);
560 }
561
562 /** {@inheritDoc} */
563 @Override public void moveCaret(TextUnit unit, Direction dir, boolean select) {
564 switch (unit) {
565 case CHARACTER:
566 switch (dir) {
567 case LEFT:
568 case RIGHT:
569 nextCharacterVisually(dir == Direction.RIGHT);
576 throw new IllegalArgumentException(""+unit);
577 }
578 }
579
580 private void nextCharacterVisually(boolean moveRight) {
581 if (isRTL()) {
582 // Text node is mirrored.
583 moveRight = !moveRight;
584 }
585
586 Bounds caretBounds = caretPath.getLayoutBounds();
587 if (caretPath.getElements().size() == 4) {
588 // The caret is split
589 // TODO: Find a better way to get the primary caret position
590 // instead of depending on the internal implementation.
591 // See RT-25465.
592 caretBounds = new Path(caretPath.getElements().get(0), caretPath.getElements().get(1)).getLayoutBounds();
593 }
594 double hitX = moveRight ? caretBounds.getMaxX() : caretBounds.getMinX();
595 double hitY = (caretBounds.getMinY() + caretBounds.getMaxY()) / 2;
596 HitInfo hit = textNode.hitTest(new Point2D(hitX, hitY));
597 boolean leading = hit.isLeading();
598 Path charShape = new Path(textNode.rangeShape(hit.getCharIndex(), hit.getCharIndex() + 1));
599 if ((moveRight && charShape.getLayoutBounds().getMaxX() > caretBounds.getMaxX()) ||
600 (!moveRight && charShape.getLayoutBounds().getMinX() < caretBounds.getMinX())) {
601 leading = !leading;
602 }
603 positionCaret(hit.getInsertionIndex(), leading, false);
604 }
605
606 /** {@inheritDoc} */
607 @Override protected void layoutChildren(final double x, final double y,
608 final double w, final double h) {
609 super.layoutChildren(x, y, w, h);
610
611 if (textNode != null) {
612 double textY;
613 final Bounds textNodeBounds = textNode.getLayoutBounds();
614 final double ascent = textNode.getBaselineOffset();
615 final double descent = textNodeBounds.getHeight() - ascent;
616
617 switch (getSkinnable().getAlignment().getVpos()) {
618 case TOP:
619 textY = ascent;
620 break;
621
622 case CENTER:
623 textY = (ascent + textGroup.getHeight() - descent) / 2;
696 case OFFSET_AT_POINT:
697 return textNode.queryAccessibleAttribute(attribute, parameters);
698 default: return super.queryAccessibleAttribute(attribute, parameters);
699 }
700 }
701
702
703
704 /**************************************************************************
705 *
706 * Private implementation
707 *
708 **************************************************************************/
709
710 TextInputControlBehavior getBehavior() {
711 return behavior;
712 }
713
714 private void updateTextNodeCaretPos(int pos) {
715 if (pos == 0 || isForwardBias()) {
716 textNode.setCaretPosition(pos);
717 } else {
718 textNode.setCaretPosition(pos - 1);
719 }
720 textNode.caretBiasProperty().set(isForwardBias());
721 }
722
723 private void createPromptNode() {
724 if (promptNode != null || !usePromptText.get()) return;
725
726 promptNode = new Text();
727 textGroup.getChildren().add(0, promptNode);
728 promptNode.setManaged(false);
729 promptNode.getStyleClass().add("text");
730 promptNode.visibleProperty().bind(usePromptText);
731 promptNode.fontProperty().bind(getSkinnable().fontProperty());
732
733 promptNode.textProperty().bind(getSkinnable().promptTextProperty());
734 promptNode.fillProperty().bind(promptTextFillProperty());
735 updateSelection();
736 }
737
738 private void updateSelection() {
739 TextField textField = getSkinnable();
740 IndexRange newValue = textField.getSelection();
741
742 if (newValue == null || newValue.getLength() == 0) {
743 textNode.selectionStartProperty().set(-1);
744 textNode.selectionEndProperty().set(-1);
745 } else {
746 textNode.selectionStartProperty().set(newValue.getStart());
747 // This intermediate value is needed to force selection shape layout.
748 textNode.selectionEndProperty().set(newValue.getStart());
749 textNode.selectionEndProperty().set(newValue.getEnd());
750 }
751
752 PathElement[] elements = textNode.selectionShapeProperty().get();
753 if (elements == null) {
754 selectionHighlightPath.getElements().clear();
755 } else {
756 selectionHighlightPath.getElements().setAll(elements);
757 }
758
759 if (SHOW_HANDLES && newValue != null && newValue.getLength() > 0) {
760 int caretPos = textField.getCaretPosition();
761 int anchorPos = textField.getAnchor();
762
763 {
764 // Position the handle for the anchor. This could be handle1 or handle2.
765 // Do this before positioning the handle for the caret.
766 updateTextNodeCaretPos(anchorPos);
767 Bounds b = caretPath.getBoundsInParent();
768 if (caretPos < anchorPos) {
769 selectionHandle2.setLayoutX(b.getMinX() - selectionHandle2.getWidth() / 2);
770 } else {
771 selectionHandle1.setLayoutX(b.getMinX() - selectionHandle1.getWidth() / 2);
772 }
|