001package gwt.material.design.client.ui;
002
003/*
004 * #%L
005 * GwtMaterial
006 * %%
007 * Copyright (C) 2015 GwtMaterialDesign
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023//@formatter:off
024
025/**
026 * Material Integer Box is an input field that accepts any Integer based string
027 * from user. <h3>UiBinder Usage:</h3>
028 * 
029 * <pre>
030 * {@code <m:MaterialIntegerBox placeholder="Your integer" step=100/>}
031 * </pre>
032 * 
033 * The parsing and formatting of the number are done natively by the browser,
034 * using the i18n settings from the user.
035 * 
036 * @see <a href="http://gwt-material-demo.herokuapp.com/#forms">Material
037 *      IntegerBox</a>
038 * @author paulux84
039 */
040// @formatter:on
041public class MaterialIntegerBox extends MaterialNumberBox<Integer> {
042
043    public MaterialIntegerBox() {
044        setStep("1");
045    }
046
047    @Override
048    public Integer getValue() {
049        double number = getValueAsNumber();
050        if (Double.isNaN(number)) {
051            return null;
052        }
053        return (int) Math.rint(number);
054    }
055
056}