burrito.client.sitelet.SiteletAdminPanel.java Source code

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Here is the source code for burrito.client.sitelet.SiteletAdminPanel.java

Source

/**
 * Copyright 2011 Henric Persson (henric.persson@gmail.com)
 * 
 * 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 burrito.client.sitelet;

import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import burrito.client.widgets.layout.VerticalSpacer;

public class SiteletAdminPanel extends Composite implements ValueChangeHandler<String> {

    private VerticalPanel wrapper = new VerticalPanel();
    private SimplePanel contentPlaceHolder = new SimplePanel();
    private String containerName;

    public SiteletAdminPanel(String containerName) {
        this.containerName = containerName;
        wrapper.add(new VerticalSpacer(20));
        wrapper.add(contentPlaceHolder);
        contentPlaceHolder.addStyleName("k5-SiteletAdminPanel-content");
        initWidget(wrapper);
        addStyleName("k5-SiteletAdminPanel");
        setWidth("100%");
        History.addValueChangeHandler(this);
        History.fireCurrentHistoryState();
    }

    public void onValueChange(ValueChangeEvent<String> event) {
        String historyToken = event.getValue();
        contentPlaceHolder.setWidget(createContentWidget(historyToken));
    }

    private Widget createContentWidget(String historyToken) {
        if ("".equals(historyToken)) {
            return new SiteletDragAndDropPanel(containerName);
        }
        try {
            Long id = Long.parseLong(historyToken);
            return new SiteletEditPanel(containerName, id);
        } catch (NumberFormatException e) {
            throw new RuntimeException("Unknown history token: " + historyToken);
        }

    }

}