com.jfoenix.validation.RequiredFieldValidator Maven / Gradle / Ivy
/*
* 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.validation;
import com.jfoenix.validation.base.ValidatorBase;
import javafx.beans.DefaultProperty;
import javafx.scene.control.ComboBoxBase;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.control.TextInputControl;
/**
* An example of required field validation, that is applied on text input
* controls such as {@link TextField} and {@link TextArea}
*
* @author Shadi Shaheen
* @version 1.0
* @since 2016-03-09
*/
@DefaultProperty(value = "icon")
public class RequiredFieldValidator extends ValidatorBase {
/**
* {@inheritDoc}
*/
@Override
protected void eval() {
if (srcControl.get() instanceof TextInputControl) {
evalTextInputField();
}
if (srcControl.get() instanceof ComboBoxBase) {
evalComboBoxField();
}
}
private void evalTextInputField() {
TextInputControl textField = (TextInputControl) srcControl.get();
if (textField.getText() == null || textField.getText().isEmpty()) {
hasErrors.set(true);
} else {
hasErrors.set(false);
}
}
private void evalComboBoxField() {
ComboBoxBase comboField = (ComboBoxBase) srcControl.get();
Object value = comboField.getValue();
hasErrors.set(value == null || value.toString().isEmpty());
}
}