eu.lod2.stat.dsdrepo.DSDRepoComponentWrapper.java Source code

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Here is the source code for eu.lod2.stat.dsdrepo.DSDRepoComponentWrapper.java

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package eu.lod2.stat.dsdrepo;

import com.vaadin.ui.AbstractLayout;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;
import eu.lod2.ConfigurationTab;
import eu.lod2.LOD2DemoState;

/**
 *
 * @author vukm
 */
public class DSDRepoComponentWrapper extends CustomComponent implements LOD2DemoState.CurrentGraphListener {

    private LOD2DemoState state;
    private AbstractLayout target;
    private final HorizontalLayout mainContainer;

    public DSDRepoComponentWrapper(LOD2DemoState state, AbstractLayout target) {
        this.state = state;
        this.target = target;
        mainContainer = new HorizontalLayout();
        mainContainer.setSizeFull();
        mainContainer.setSpacing(true);
        setCompositionRoot(mainContainer);
    }

    private void refresh() {
        mainContainer.removeAllComponents();
        String currentGraph = state.getCurrentGraph();
        if (currentGraph == null || currentGraph.isEmpty()) {
            VerticalLayout l = new VerticalLayout();
            l.setSizeFull();
            mainContainer.addComponent(l);
            Label message = new Label("No graph is currently selected. You can select one below:");
            l.addComponent(message);
            l.setExpandRatio(message, 0.0f);
            ConfigurationTab config = new ConfigurationTab(this.state);
            l.addComponent(config);
            l.setExpandRatio(config, 2.0f);
            l.setComponentAlignment(message, Alignment.TOP_LEFT);
            l.setComponentAlignment(config, Alignment.TOP_LEFT);

            return;
        }

        mainContainer.addComponent(new DSDRepoComponent(state.getRdfStore(), currentGraph));
    }

    public void notifyCurrentGraphChange(String graph) {
        refresh();
    }

    @Override
    public void attach() {
        state.addCurrentGraphListener(this);
        refresh();
    }

    @Override
    public void detach() {
        state.removeCurrentGraphListener(this);
    }

}