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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.jfoenix.skins;
import com.jfoenix.concurrency.JFXUtilities;
import com.jfoenix.controls.JFXTextArea;
import com.jfoenix.transitions.CachedTransition;
import com.jfoenix.validation.base.ValidatorBase;
import com.sun.javafx.scene.control.skin.TextAreaSkin;
import javafx.animation.Animation.Status;
import javafx.animation.*;
import javafx.application.Platform;
import javafx.beans.binding.Bindings;
import javafx.beans.binding.BooleanBinding;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.control.Label;
import javafx.scene.control.ScrollPane;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Text;
import javafx.scene.transform.Scale;
import javafx.util.Duration;
import java.lang.reflect.Field;
/**
*
Material Design TextArea Skin
*
* @author Shadi Shaheen
* @version 2.0
* @since 2017-01-25
*/
public class JFXTextAreaSkin extends TextAreaSkin {
private static Background transparentBackground = new Background(
new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY),
new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY),
new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY),
new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY));
private boolean invalid = true;
private StackPane line = new StackPane();
private StackPane focusedLine = new StackPane();
private Label errorLabel = new Label();
private StackPane errorIcon = new StackPane();
private HBox errorContainer = new HBox();
private Pane promptContainer = new StackPane();
private ScrollPane scrollPane;
private Text promptText;
private CachedTransition promptTextUpTransition;
private CachedTransition promptTextDownTransition;
private CachedTransition promptTextColorTransition;
private ParallelTransition transition;
private double initScale = 0.05;
private Scale promptTextScale = new Scale(1, 1, 0, 0);
private Scale scale = new Scale(initScale, 1);
private Timeline linesAnimation = new Timeline(
new KeyFrame(Duration.ZERO,
new KeyValue(scale.xProperty(), initScale, Interpolator.EASE_BOTH),
new KeyValue(focusedLine.opacityProperty(), 0, Interpolator.EASE_BOTH)),
new KeyFrame(Duration.millis(1),
new KeyValue(focusedLine.opacityProperty(), 1, Interpolator.EASE_BOTH)),
new KeyFrame(Duration.millis(160),
new KeyValue(scale.xProperty(), 1, Interpolator.EASE_BOTH))
);
private Paint oldPromptTextFill;
private BooleanBinding usePromptText = Bindings.createBooleanBinding(this::usePromptText,
getSkinnable().textProperty(),
getSkinnable().promptTextProperty());
private final Rectangle errorContainerClip = new Rectangle();
private final Scale errorClipScale = new Scale(1, 0, 0, 0);
private Timeline errorHideTransition = new Timeline(new KeyFrame(Duration.millis(80), new
KeyValue(errorContainer.opacityProperty(), 0, Interpolator.LINEAR)));
private Timeline errorShowTransition = new Timeline(new KeyFrame(Duration.millis(80), new
KeyValue(errorContainer.opacityProperty(), 1, Interpolator.EASE_OUT)));
private Timeline scale1 = new Timeline();
private Timeline scaleLess1 = new Timeline();
private final ObjectProperty animatedPromptTextFill = new SimpleObjectProperty<>(super.promptTextFill.get());
public JFXTextAreaSkin(JFXTextArea textArea) {
super(textArea);
// init text area properties
scrollPane = (ScrollPane) getChildren().get(0);
((Region) scrollPane.getContent()).setPadding(new Insets(0));
// hide text area borders
scrollPane.setBackground(transparentBackground);
((Region) scrollPane.getContent()).setBackground(transparentBackground);
getSkinnable().setBackground(transparentBackground);
textArea.setWrapText(true);
// add style classes
errorLabel.getStyleClass().add("error-label");
line.getStyleClass().add("input-line");
focusedLine.getStyleClass().add("input-focused-line");
// draw lines
line.setPrefHeight(1);
line.setTranslateY(1 + 4 + 2); // translate = prefHeight + init_translation
line.setBackground(new Background(new BackgroundFill(((JFXTextArea) getSkinnable()).getUnFocusColor(),
CornerRadii.EMPTY, Insets.EMPTY)));
if (getSkinnable().isDisabled()) {
line.setBorder(new Border(new BorderStroke(((JFXTextArea) getSkinnable()).getUnFocusColor(),
BorderStrokeStyle.DASHED,
CornerRadii.EMPTY,
new BorderWidths(1))));
line.setBackground(new Background(new BackgroundFill(Color.TRANSPARENT,
CornerRadii.EMPTY, Insets.EMPTY)));
}
// focused line
focusedLine.setPrefHeight(2);
focusedLine.setTranslateY(4 + 2); // translate = prefHeight + init_translation(-1)
focusedLine.setBackground(new Background(new BackgroundFill(((JFXTextArea) getSkinnable()).getFocusColor(),
CornerRadii.EMPTY, Insets.EMPTY)));
focusedLine.setOpacity(0);
focusedLine.getTransforms().add(scale);
// error container
errorContainer.getChildren().setAll(new StackPane(errorLabel), errorIcon);
errorContainer.setAlignment(Pos.CENTER_LEFT);
errorContainer.setManaged(false);
errorContainer.setPadding(new Insets(4,0,0,0));
errorContainer.setSpacing(8);
errorContainer.setVisible(false);
errorContainer.setOpacity(0);
StackPane.setAlignment(errorLabel, Pos.TOP_LEFT);
HBox.setHgrow(errorLabel.getParent(), Priority.ALWAYS);
errorContainerClip.getTransforms().add(errorClipScale);
errorContainer.setClip(textArea.isDisableAnimation() ? null : errorContainerClip);
getChildren().addAll(line, focusedLine, promptContainer, errorContainer);
textArea.activeValidatorProperty().addListener((o, oldVal, newVal) -> {
if (scrollPane != null) {
if (!((JFXTextArea) getSkinnable()).isDisableAnimation()) {
if (newVal != null) {
errorHideTransition.setOnFinished(finish -> {
showError(newVal);
final double w = getSkinnable().getWidth();
double errorContainerHeight = computeErrorHeight(computeErrorWidth(w));
if(errorLabel.isWrapText()){
// animate opacity + scale
if (errorContainerHeight < errorContainer.getHeight()) {
// update animation frames
scaleLess1.getKeyFrames().setAll(createSmallerScaleFrame(errorContainerHeight));
scaleLess1.setOnFinished(event -> {
updateErrorContainerSize(w, errorContainerHeight);
errorClipScale.setY(1);
});
SequentialTransition transition = new SequentialTransition(scaleLess1,
errorShowTransition);
transition.play();
} else {
errorClipScale.setY(oldVal == null ? 0 :
errorContainer.getHeight() / errorContainerHeight);
updateErrorContainerSize(w, errorContainerHeight);
// update animation frames
scale1.getKeyFrames().setAll(createScaleToOneFrames());
// play animation
ParallelTransition parallelTransition = new ParallelTransition();
parallelTransition.getChildren().addAll(scale1, errorShowTransition);
parallelTransition.play();
}
}else{
// animate opacity only
errorClipScale.setY(1);
updateErrorContainerSize(w, errorContainerHeight);
ParallelTransition parallelTransition = new ParallelTransition(errorShowTransition);
parallelTransition.play();
}
});
errorHideTransition.play();
} else {
errorHideTransition.setOnFinished(null);
if(errorLabel.isWrapText()){
// animate scale only
scaleLess1.getKeyFrames().setAll(new KeyFrame(Duration.millis(100),
new KeyValue(errorClipScale.yProperty(), 0, Interpolator.EASE_BOTH)));
scaleLess1.setOnFinished(event -> {
hideError();
errorClipScale.setY(0);
});
SequentialTransition transition = new SequentialTransition(scaleLess1);
transition.play();
}else{
errorClipScale.setY(0);
}
// animate opacity only
errorHideTransition.play();
}
} else {
if (newVal != null) {
JFXUtilities.runInFXAndWait(() -> showError(newVal));
} else {
JFXUtilities.runInFXAndWait(this::hideError);
}
}
}
});
textArea.focusColorProperty().addListener((o, oldVal, newVal) -> {
if (newVal != null) {
focusedLine.setBackground(new Background(new BackgroundFill(newVal, CornerRadii.EMPTY, Insets.EMPTY)));
if (((JFXTextArea) getSkinnable()).isLabelFloat()) {
promptTextColorTransition = createColorTransition(newVal);
// reset transition
resetFocusTransition();
}
}
});
textArea.unFocusColorProperty().addListener((o, oldVal, newVal) -> {
if (newVal != null) {
line.setBackground(new Background(new BackgroundFill(newVal, CornerRadii.EMPTY, Insets.EMPTY)));
}
});
// handle animation on focus gained/lost event
textArea.focusedProperty().addListener((o, oldVal, newVal) -> {
if (newVal) {
focus();
} else {
unFocus();
}
});
// handle text changing at runtime
textArea.textProperty().addListener((o, oldVal, newVal) -> {
if (!getSkinnable().isFocused() && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
if (newVal == null || newVal.isEmpty()) {
animateFloatingLabel(false);
} else {
animateFloatingLabel(true);
}
}
});
textArea.backgroundProperty().addListener((o, oldVal, newVal) -> {
// Force transparent background
if (oldVal == transparentBackground && newVal != transparentBackground) {
textArea.setBackground(transparentBackground);
}
});
textArea.disabledProperty().addListener((o, oldVal, newVal) -> {
line.setBorder(newVal ? new Border(new BorderStroke(((JFXTextArea) getSkinnable()).getUnFocusColor(),
BorderStrokeStyle.DASHED,
CornerRadii.EMPTY,
new BorderWidths(line.getHeight()))) : Border.EMPTY);
line.setBackground(new Background(new BackgroundFill(newVal ? Color.TRANSPARENT : ((JFXTextArea) getSkinnable())
.getUnFocusColor(),
CornerRadii.EMPTY, Insets.EMPTY)));
});
// prevent setting prompt text fill to transparent when text field is focused (override java transparent color if the control was focused)
promptTextFill.addListener((o, oldVal, newVal) -> {
oldPromptTextFill = newVal;
animatedPromptTextFill.set(newVal);
});
registerChangeListener(textArea.disableAnimationProperty(), "DISABLE_ANIMATION");
registerChangeListener(textArea.labelFloatProperty(), "LABEL_FLOAT");
}
@Override
protected void handleControlPropertyChanged(String propertyReference) {
if("LABEL_FLOAT".equals(propertyReference)){
boolean isLabelFloat = ((JFXTextArea) getSkinnable()).isLabelFloat();
if (isLabelFloat) {
JFXUtilities.runInFX(this::createFloatingLabel);
} else {
if(promptText!=null){
// remove parent focus listener to prevent editor class cast exception
promptText.visibleProperty().bind(usePromptText);
}
}
createFocusTransition();
// update prompt text position
if(isLabelFloat) animateFloatingLabel(!getSkinnable().getText().isEmpty());
} else if ("DISABLE_ANIMATION".equals(propertyReference)) {
// remove error clip if animation is disabled
errorContainer.setClip(((JFXTextArea) getSkinnable()).isDisableAnimation() ?
null : errorContainerClip);
} else {
super.handleControlPropertyChanged(propertyReference);
}
}
@Override
protected void layoutChildren(final double x, final double y, final double w, final double h) {
super.layoutChildren(x, y, w, h);
// change control properties if and only if animations are stopped
if (transition == null || transition.getStatus() == Status.STOPPED) {
if (getSkinnable().isFocused() && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
animatedPromptTextFill.set(((JFXTextArea) getSkinnable()).getFocusColor());
}
}
if (invalid) {
invalid = false;
animatedPromptTextFill.set(promptTextFill.get());
// set the default background of text area viewport to white
Region viewPort = (Region) scrollPane.getChildrenUnmodifiable().get(0);
viewPort.setBackground(new Background(new BackgroundFill(Color.TRANSPARENT,
CornerRadii.EMPTY,
Insets.EMPTY)));
// reapply css of scroll pane in case set by the user
viewPort.applyCss();
// create floating label
createFloatingLabel();
// to position the prompt node properly
super.layoutChildren(x, y, w, h);
// update validation container
final ValidatorBase activeValidator = ((JFXTextArea) getSkinnable()).getActiveValidator();
if (activeValidator != null) {
showError(activeValidator);
final double errorContainerWidth = w - errorIcon.prefWidth(-1);
errorContainer.setOpacity(1);
errorContainer.resize(w, computeErrorHeight(errorContainerWidth));
errorContainerClip.setWidth(w);
errorContainerClip.setHeight(errorContainer.getHeight());
errorClipScale.setY(1);
}
// focus
createFocusTransition();
if (getSkinnable().isFocused()) {
focus();
}
}
final double height = h - focusedLine.prefHeight(-1);
focusedLine.resizeRelocate(x, height, w, focusedLine.prefHeight(-1));
line.resizeRelocate(x, height, w, line.prefHeight(-1));
errorContainer.relocate(x, y);
// resize error container if animation is disabled
if (((JFXTextArea) getSkinnable()).isDisableAnimation()) {
errorContainer.resize(w, computeErrorHeight(computeErrorWidth(w)));
}
errorContainer.setTranslateY(h + focusedLine.getHeight() + 4);
scale.setPivotX(w / 2);
}
private double computeErrorWidth(double w) {
return w - errorIcon.prefWidth(-1);
}
private double computeErrorHeight(double errorContainerWidth) {
return errorLabel.prefHeight(errorContainerWidth)
+ errorContainer.snappedBottomInset()
+ errorContainer.snappedTopInset();
}
/**
* update the size of error container and its clip
* @param w
* @param errorContainerHeight
*/
private void updateErrorContainerSize(double w, double errorContainerHeight) {
errorContainerClip.setWidth(w);
errorContainerClip.setHeight(errorContainerHeight);
errorContainer.resize(w, errorContainerHeight);
}
/**
* creates error animation frames when moving from large -> small error container
* @param errorContainerHeight
* @return
*/
private KeyFrame createSmallerScaleFrame(double errorContainerHeight) {
return new KeyFrame(Duration.millis(100),
new KeyValue(errorClipScale.yProperty(),
errorContainerHeight / errorContainer.getHeight(),
Interpolator.EASE_BOTH));
}
/**
* creates error animation frames when moving from small -> large error container
* @return
*/
private KeyFrame createScaleToOneFrames() {
return new KeyFrame(Duration.millis(100), new
KeyValue(errorClipScale.yProperty(), 1, Interpolator.EASE_BOTH));
}
private void createFloatingLabel() {
if (((JFXTextArea) getSkinnable()).isLabelFloat()) {
if (promptText == null) {
// get the prompt text node or create it
boolean triggerFloatLabel = false;
if (((Region) scrollPane.getContent()).getChildrenUnmodifiable().get(0) instanceof Text) {
promptText = (Text) ((Region) scrollPane.getContent()).getChildrenUnmodifiable().get(0);
} else {
Field field;
try {
field = TextAreaSkin.class.getDeclaredField("promptNode");
field.setAccessible(true);
createPromptNode();
field.set(this, promptText);
// replace parent promptNode with promptText field
triggerFloatLabel = true;
oldPromptTextFill = promptTextFill.get();
} catch (NoSuchFieldException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// fixed issue text area is being resized when the content is excedeing its width
promptText.wrappingWidthProperty().addListener((o, oldval, newVal) -> {
if (newVal.doubleValue() > getSkinnable().getWidth()) {
promptText.setWrappingWidth(getSkinnable().getWidth());
}
});
promptText.fillProperty().bind(animatedPromptTextFill);
promptText.getTransforms().add(promptTextScale);
promptContainer.getChildren().add(promptText);
if (triggerFloatLabel) {
promptText.setTranslateY(-promptText.getBoundsInLocal().getHeight() - 2);
promptTextScale.setX(0.85);
promptTextScale.setY(0.85);
}
}
// create prompt animations
promptTextUpTransition = new CachedTransition(promptContainer, new Timeline(
new KeyFrame(Duration.millis(1300),
new KeyValue(promptText.translateYProperty(),
-promptText.getLayoutBounds().getHeight() - 2,
Interpolator.EASE_BOTH),
new KeyValue(promptTextScale.xProperty(), 0.85, Interpolator.EASE_BOTH),
new KeyValue(promptTextScale.yProperty(), 0.85, Interpolator.EASE_BOTH))))
{
private double finalHeight = -promptText.getLayoutBounds().getHeight() - 2;
{
setDelay(Duration.millis(0));
setCycleDuration(Duration.millis(240));
}
@Override
protected void stopping() {
super.stopping();
promptText.setTranslateY(finalHeight);
promptTextScale.setX(0.85);
promptTextScale.setY(0.85);
}
};
promptTextColorTransition = createColorTransition(((JFXTextArea) getSkinnable()).getFocusColor());
promptTextDownTransition = new CachedTransition(promptContainer, new Timeline(
new KeyFrame(Duration.millis(1300),
new KeyValue(promptText.translateYProperty(), 0, Interpolator.EASE_BOTH),
new KeyValue(promptTextScale.xProperty(), 1, Interpolator.EASE_BOTH),
new KeyValue(promptTextScale.yProperty(), 1, Interpolator.EASE_BOTH))))
{
{
setDelay(Duration.millis(0));
setCycleDuration(Duration.millis(240));
}
@Override
protected void stopping() {
super.stopping();
promptText.setTranslateY(0);
promptTextScale.setX(1);
promptTextScale.setY(1);
}
};
promptText.visibleProperty().unbind();
promptText.visibleProperty().set(true);
}
}
private void createPromptNode() {
promptText = new Text();
promptText.setManaged(false);
promptText.getStyleClass().add("text");
promptText.visibleProperty().bind(usePromptText);
promptText.fontProperty().bind(getSkinnable().fontProperty());
promptText.textProperty().bind(getSkinnable().promptTextProperty());
promptText.fillProperty().bind(animatedPromptTextFill);
promptText.setLayoutX(1);
}
private void focus() {
// in case the method request layout is not called before focused
// this bug is reported while editing treetableview cells
if (scrollPane == null) {
Platform.runLater(() -> focus());
} else {
// create the focus animations
if (transition == null) {
createFocusTransition();
}
transition.play();
}
}
private void createFocusTransition() {
transition = new ParallelTransition();
if (((JFXTextArea) getSkinnable()).isLabelFloat()) {
transition.getChildren().add(promptTextUpTransition);
transition.getChildren().add(promptTextColorTransition);
}
transition.getChildren().add(linesAnimation);
}
private void unFocus() {
if (transition != null) {
transition.stop();
}
scale.setX(initScale);
focusedLine.setOpacity(0);
if (oldPromptTextFill != null && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
animatedPromptTextFill.set(oldPromptTextFill);
if (usePromptText()) {
promptTextDownTransition.play();
}
}
}
private CachedTransition createColorTransition(Paint newVal) {
return new CachedTransition(promptContainer, new Timeline(
new KeyFrame(Duration.millis(1300),
new KeyValue(animatedPromptTextFill, newVal, Interpolator.EASE_BOTH)))) {
{
setDelay(Duration.millis(0));
setCycleDuration(Duration.millis(160));
}
protected void starting() {
super.starting();
oldPromptTextFill = animatedPromptTextFill.get();
}
};
}
/**
* this method is called when the text property is changed when the
* field is not focused (changed in code)
*
* @param up
*/
private void animateFloatingLabel(boolean up) {
if (promptText == null) {
Platform.runLater(() -> animateFloatingLabel(up));
} else {
resetFocusTransition();
if (up && promptContainer.getTranslateY() == 0) {
promptTextDownTransition.stop();
promptTextUpTransition.play();
} else if (!up) {
promptTextUpTransition.stop();
promptTextDownTransition.play();
}
}
}
private void resetFocusTransition() {
if (transition != null) {
transition.stop();
transition.getChildren().remove(promptTextUpTransition);
transition = null;
}
}
private boolean usePromptText() {
String txt = getSkinnable().getText();
String promptTxt = getSkinnable().getPromptText();
return (txt == null || txt.isEmpty()) && promptTxt != null &&
!promptTxt.isEmpty() && !promptTextFill.get().equals(Color.TRANSPARENT);
}
private void showError(ValidatorBase validator) {
// set text in error label
errorLabel.setText(validator.getMessage());
// show error icon
Node icon = validator.getIcon();
errorIcon.getChildren().clear();
if (icon != null) {
errorIcon.getChildren().add(icon);
StackPane.setAlignment(icon, Pos.CENTER_RIGHT);
}
errorContainer.setVisible(true);
}
private void hideError() {
// clear error label text
errorLabel.setText(null);
// clear error icon
errorIcon.getChildren().clear();
// hide error container
errorContainer.setVisible(false);
}
}
