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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.adapters.ReflectionHelper;
import com.jfoenix.concurrency.JFXUtilities;
import com.jfoenix.controls.JFXTextArea;
import com.jfoenix.transitions.JFXAnimationTimer;
import com.jfoenix.transitions.JFXKeyFrame;
import com.jfoenix.transitions.JFXKeyValue;
import com.jfoenix.validation.base.ValidatorBase;
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.control.skin.TextAreaSkin;
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;
/**
*
Material Design TextArea Skin
*
* @author Shadi Shaheen
* @version 2.0
* @since 2017-01-25
*/
public class JFXTextAreaSkin extends TextAreaSkin {
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 double initScale = 0.05;
private Scale promptTextScale = new Scale(1, 1, 0, 0);
private Scale scale = new Scale(initScale, 1);
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.getPromptTextFill());
JFXAnimationTimer focusTimer = new JFXAnimationTimer(
new JFXKeyFrame(Duration.millis(1),
JFXKeyValue.builder()
.setTarget(focusedLine.opacityProperty())
.setEndValue(1)
.setInterpolator(Interpolator.EASE_BOTH)
.setAnimateCondition(()->getSkinnable().isFocused()).build()),
new JFXKeyFrame(Duration.millis(160),
JFXKeyValue.builder()
.setTarget(scale.xProperty())
.setEndValue(1)
.setInterpolator(Interpolator.EASE_BOTH).build(),
JFXKeyValue.builder()
.setTarget(animatedPromptTextFill)
.setEndValueSupplier(()->((JFXTextArea) getSkinnable()).getFocusColor())
.setInterpolator(Interpolator.EASE_BOTH)
.setAnimateCondition(()->getSkinnable().isFocused()).build(),
JFXKeyValue.builder()
.setTargetSupplier(()->promptText == null ? null : promptText.translateYProperty())
.setEndValueSupplier(() -> -promptText.getLayoutBounds().getHeight() - 2)
.setInterpolator(Interpolator.EASE_BOTH).build(),
JFXKeyValue.builder()
.setTarget(promptTextScale.xProperty())
.setEndValue(0.85)
.setInterpolator(Interpolator.EASE_BOTH).build(),
JFXKeyValue.builder()
.setTarget(promptTextScale.yProperty())
.setEndValue(0.85)
.setInterpolator(Interpolator.EASE_BOTH).build())
);
JFXAnimationTimer unfocusTimer = new JFXAnimationTimer(
new JFXKeyFrame(Duration.millis(160),
JFXKeyValue.builder()
.setTargetSupplier(()->promptText == null ? null : promptText.translateYProperty())
.setEndValue(0)
.setInterpolator(Interpolator.EASE_BOTH).build(),
JFXKeyValue.builder()
.setTarget(promptTextScale.xProperty())
.setEndValue(1)
.setInterpolator(Interpolator.EASE_BOTH).build(),
JFXKeyValue.builder()
.setTarget(promptTextScale.yProperty())
.setEndValue(1)
.setInterpolator(Interpolator.EASE_BOTH).build())
);
public JFXTextAreaSkin(JFXTextArea textArea) {
super(textArea);
// init text area properties
scrollPane = (ScrollPane) getChildren().get(0);
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.setManaged(false);
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.setManaged(false);
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(observable -> {
if (textArea.getFocusColor() != null) {
focusedLine.setBackground(new Background(new BackgroundFill(textArea.getFocusColor(), CornerRadii.EMPTY, Insets.EMPTY)));
}
});
textArea.unFocusColorProperty().addListener(observable -> {
if (textArea.getUnFocusColor() != null) {
line.setBackground(new Background(new BackgroundFill(textArea.getUnFocusColor(), 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(observable -> updateFloating());
textArea.disabledProperty().addListener(observable -> {
line.setBorder(textArea.isDisabled() ? new Border(new BorderStroke(((JFXTextArea) getSkinnable()).getUnFocusColor(),
BorderStrokeStyle.DASHED,
CornerRadii.EMPTY,
new BorderWidths(line.getHeight()))) : Border.EMPTY);
line.setBackground(new Background(new BackgroundFill(textArea.isDisabled() ? 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)
promptTextFillProperty().addListener(observable -> {
oldPromptTextFill = getPromptTextFill();
animatedPromptTextFill.set(getPromptTextFill());
});
registerChangeListener(textArea.disableAnimationProperty(), obs->{
// remove error clip if animation is disabled
errorContainer.setClip(((JFXTextArea) getSkinnable()).isDisableAnimation() ?
null : errorContainerClip);
});
registerChangeListener(textArea.labelFloatProperty(), obs->{
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);
}
}
// update prompt text position
if(isLabelFloat && getSkinnable().getText() != null)
animateFloatingLabel(!getSkinnable().getText().isEmpty());
});
}
private void updateFloating() {
if (!getSkinnable().isFocused() && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
final String text = getSkinnable().getText();
if (text == null || text.isEmpty()) {
animateFloatingLabel(false);
} else {
animateFloatingLabel(true);
}
}
}
@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 (!focusTimer.isRunning() && !unfocusTimer.isRunning()) {
if (getSkinnable().isFocused() && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
animatedPromptTextFill.set(((JFXTextArea) getSkinnable()).getFocusColor());
}
}
if (invalid) {
invalid = false;
animatedPromptTextFill.set(getPromptTextFill());
// 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
focusTimer.setCacheNodes(promptContainer);
unfocusTimer.setCacheNodes(promptContainer);
createFloatingLabel();
updateFloating();
// 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
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)));
}else{
errorContainer.resize(w, errorContainer.getHeight());
errorContainerClip.setWidth(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 {
createPromptNode();
ReflectionHelper.setFieldContent(TextAreaSkin.class, this, "promptNode", promptText);
triggerFloatLabel = true;
oldPromptTextFill = getPromptTextFill();
}
// 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 {
unfocusTimer.stop();
focusTimer.start();
}
}
private void unFocus() {
focusTimer.stop();
scale.setX(initScale);
focusedLine.setOpacity(0);
if (oldPromptTextFill != null && ((JFXTextArea) getSkinnable()).isLabelFloat()) {
animatedPromptTextFill.set(oldPromptTextFill);
if (usePromptText()) {
unfocusTimer.start();
}
}
}
/**
* 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 {
if (up) {
unfocusTimer.stop();
focusTimer.start();
} else if (!up) {
focusTimer.stop();
unfocusTimer.start();
}
}
}
private boolean usePromptText() {
String txt = getSkinnable().getText();
String promptTxt = getSkinnable().getPromptText();
return (txt == null || txt.isEmpty()) && promptTxt != null &&
!promptTxt.isEmpty() && !getPromptTextFill().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);
}
}
