widgets/src/main/java/org/apache/hupa/widgets/ui/Loading.java

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 * Licensed to the Apache Software Foundation (ASF) under one   *
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 * 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   *
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 *   http://www.apache.org/licenses/LICENSE-2.0                 *
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 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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package org.apache.hupa.widgets.ui;

import org.apache.hupa.widgets.WidgetsCSS;

import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTML;

/**
 * Widget which shows a Loading state
 *
 */
public class Loading extends Composite {

    public Loading(String loadingMsg) {
        initWidget(new HTML(loadingMsg));
        addStyleName(WidgetsCSS.C_loading);
    }

    public Loading() {
        this("");
    }

    /**
     * Show the Loading image
     */
    public void show() {
        setVisible(true);
    }

    /**
     * Hide the Loading image
     */
    public void hide() {
        setVisible(false);
    }

}