de.swm.commons.mobile.client.widgets.date.DateTextBoxReadOnly.java Source code

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Here is the source code for de.swm.commons.mobile.client.widgets.date.DateTextBoxReadOnly.java

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/*
 * Copyright 2011 SWM Services GmbH.
 * 
 * Licensed 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 de.swm.commons.mobile.client.widgets.date;

import com.google.gwt.editor.client.IsEditor;
import com.google.gwt.editor.client.adapters.TakesValueEditor;
import com.google.gwt.event.logical.shared.HasValueChangeHandlers;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.uibinder.client.UiConstructor;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.user.client.ui.Label;
import de.swm.commons.mobile.client.base.PanelBase;

import java.util.Date;

/**
 * Defines a read only Date box.
 * <p/>
 * <p/>
 */
public class DateTextBoxReadOnly extends PanelBase
        implements HasValue<Date>, IsEditor<TakesValueEditor<Date>>, HasValueChangeHandlers<Date> {

    private final DateTimeFormat dateFormatter;
    private final Label internLabelField;
    private Date value;

    @UiConstructor
    public DateTextBoxReadOnly(DateStyle dateStyle) {
        this.dateFormatter = DateTimeFormat.getFormat(dateStyle.getFormatPattern());
        this.internLabelField = new Label();
        myFlowPanel.add(this.internLabelField);
    }

    @Override
    public Date getValue() {
        return this.value;
    }

    @Override
    public void setValue(Date value) {
        this.value = value;
        this.internLabelField.setText(value != null ? this.dateFormatter.format(value) : null);
    }

    @Override
    public void setValue(Date newValue, boolean fireEvents) {
        Date oldValue = this.value == null ? null : (Date) this.value.clone();
        this.setValue(newValue);
        if (fireEvents) {
            ValueChangeEvent.fireIfNotEqual(this, oldValue, newValue);
        }
    }

    @Override
    public HandlerRegistration addValueChangeHandler(ValueChangeHandler<Date> dateValueChangeHandler) {
        return this.addHandler(dateValueChangeHandler, ValueChangeEvent.getType());
    }

    @Override
    public TakesValueEditor<Date> asEditor() {
        return TakesValueEditor.of(this);
    }
}