eu.esdihumboldt.hale.ui.io.instance.exportconfig.DeleteInstanceExportConfigurationPage.java Source code

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Here is the source code for eu.esdihumboldt.hale.ui.io.instance.exportconfig.DeleteInstanceExportConfigurationPage.java

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/*
 * Copyright (c) 2013 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.io.instance.exportconfig;

import java.util.Map;

import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;

import eu.esdihumboldt.hale.common.core.io.ExportProvider;
import eu.esdihumboldt.hale.common.core.io.Value;
import eu.esdihumboldt.hale.common.core.io.project.model.IOConfiguration;
import eu.esdihumboldt.hale.common.instance.io.InstanceWriter;
import eu.esdihumboldt.hale.ui.HaleWizardPage;
import eu.esdihumboldt.hale.ui.io.config.AbstractConfigurationPage;

/**
 * Wizard page for choosing export configurations to delete
 * 
 * @author Patrick Lieb
 */
public class DeleteInstanceExportConfigurationPage
        extends AbstractConfigurationPage<InstanceWriter, DeleteInstanceExportConfigurationWizard>
        implements InstanceExportConfigurations {

    private ListViewer configurations;

    /**
     * Default constructor
     */
    public DeleteInstanceExportConfigurationPage() {
        super("del.exportConfig");

        setTitle("Delete an export configuration");
        setDescription("Please select the export configuration(s) to delete");
    }

    /**
     * @see HaleWizardPage#createContent(Composite)
     */
    @Override
    protected void createContent(Composite page) {
        // layout of the page is a grid layout with one column
        page.setLayout(new GridLayout(1, false));

        // configure the list with all available export configurations
        configurations = new ListViewer(page, SWT.MULTI | SWT.BORDER);
        configurations.setLabelProvider(new LabelProvider() {

            @Override
            public String getText(Object element) {
                if (element instanceof IOConfiguration) {
                    Map<String, Value> providerConf = ((IOConfiguration) element).getProviderConfiguration();
                    String name = providerConf.get(PARAM_CONFIGURATION_NAME).getStringRepresentation();
                    String contentType = providerConf.get(ExportProvider.PARAM_CONTENT_TYPE)
                            .getStringRepresentation();
                    return name + "  (" + contentType + ")";
                }
                return super.getText(element);
            }
        });
        configurations.setContentProvider(ArrayContentProvider.getInstance());

        GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, false);
        configurations.getControl().setLayoutData(layoutData);

        // set all available export configurations in the list viewer
        configurations.setInput(getWizard().getExportConfigurations());

        // process selection
        configurations.addSelectionChangedListener(new ISelectionChangedListener() {

            @Override
            public void selectionChanged(SelectionChangedEvent event) {
                ISelection selection = event.getSelection();
                setPageComplete(!selection.isEmpty());
                updateWizard((StructuredSelection) selection);
            }
        });
        // no configuration is selected
        setPageComplete(false);
    }

    /**
     * @see eu.esdihumboldt.hale.ui.io.config.AbstractConfigurationPage#enable()
     */
    @Override
    public void enable() {
        // not relevant on this page

    }

    /**
     * @see eu.esdihumboldt.hale.ui.io.config.AbstractConfigurationPage#disable()
     */
    @Override
    public void disable() {
        // not relevant on this page
    }

    // set all export configurations which should be deleted in the wizard
    @SuppressWarnings("unchecked")
    private void updateWizard(StructuredSelection selection) {
        getWizard().setSelection(selection.toList());

    }

    /**
     * @see eu.esdihumboldt.hale.ui.io.IOWizardPage#updateConfiguration(eu.esdihumboldt.hale.common.core.io.IOProvider)
     */
    @Override
    public boolean updateConfiguration(InstanceWriter provider) {
        return true;
    }

}