001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 - 2017 GwtMaterialDesign
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package gwt.material.design.client.ui;
021
022//@formatter:off
023
024/**
025 * Material Long Box is an input field that accepts any Long based string
026 * from user. <h3>UiBinder Usage:</h3>
027 * <p>
028 * <pre> {@code <m:MaterialLongBox ui:field="txtLongBox" label="Long value"/>
029 *
030 * // Setting value in java
031 * txtLongBox.setValue((long) 1000.00);}
032 * </pre>
033 * <p>
034 * The parsing and formatting of the number are done natively by the browser,
035 * using the i18n settings from the user.
036 *
037 * @author paulux84
038 * @see <a href="http://gwtmaterialdesign.github.io/gwt-material-demo/#textfields">Material
039 * IntegerBox</a>
040 * @see <a href="https://material.io/guidelines/components/text-fields.html#">Material Design Specification</a>
041 */
042// @formatter:on
043public class MaterialLongBox extends MaterialNumberBox<Long> {
044
045    public MaterialLongBox() {
046        setStep("1");
047    }
048
049    public MaterialLongBox(String placeholder) {
050        this();
051        setPlaceholder(placeholder);
052    }
053
054    public MaterialLongBox(String placeholder, long value) {
055        this(placeholder);
056        setValue(value);
057    }
058
059    @Override
060    protected Long parseNumber(double number) {
061        if (Double.isNaN(number)) {
062            return null;
063        }
064        return (long) Math.rint(number);
065    }
066}