de.spartusch.nasfvi.client.MessageBox.java Source code

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Here is the source code for de.spartusch.nasfvi.client.MessageBox.java

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/*
 * Copyright 2011 Stefan Partusch
 *
 * 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.spartusch.nasfvi.client;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * A popup with a caption and a Widget as the content.
 * Each MessageBox features an "Ok" button to hide the box.
 * @author Stefan Partusch
 * @see {@link com.google.gwt.user.client.ui.DialogBox DialogBox}
 *
 */
public class MessageBox implements ClickHandler {
    /** The box itself. */
    private final DialogBox box;
    /** Button to hide the box. */
    private final Button ok;

    /**
     * @param caption Caption of the MessageBox
     * @param content Widget to set as the content of the MessageBox
     */
    public MessageBox(final String caption, final Widget content) {
        box = new DialogBox(true, false);
        box.setAnimationEnabled(true);
        box.setGlassEnabled(true);
        ok = new Button("Ok");
        ok.addClickHandler(this);
        set(caption, content);
    }

    /**
     * Sets the content and a caption of this MessageBox.
     * @param caption New caption of the box
     * @param content New content of the box
     */
    public final void set(final String caption, final Widget content) {
        box.setText(caption);

        HorizontalPanel hori = new HorizontalPanel();
        VerticalPanel verti = new VerticalPanel();

        hori.setHorizontalAlignment(Label.ALIGN_CENTER);
        hori.add(ok);
        hori.setWidth("100%");

        verti.add(content);
        verti.add(hori);
        verti.setWidth("100%");
        verti.setSpacing(10);

        box.add(verti);
        box.center();
    }

    @Override
    public final void onClick(final ClickEvent event) {
        Object sender = event.getSource();
        if (sender == ok) {
            box.hide();
        }
    }
}