EDIT

// $Id$

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.store.datasource.view;

import java.util.List;

import org.eclipse.core.commands.ExecutionEvent;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.core.commands.NotEnabledException;

import org.eclipse.core.commands.NotHandledException;

import org.eclipse.core.commands.common.NotDefinedException;

import org.eclipse.jface.action.GroupMarker;

import org.eclipse.jface.action.MenuManager;

import org.eclipse.jface.dialogs.MessageDialog;

import org.eclipse.jface.viewers.DoubleClickEvent;

import org.eclipse.jface.viewers.IDoubleClickListener;

import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.jface.viewers.TableViewerColumn;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.FillLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Menu;

import org.eclipse.swt.widgets.Table;

import org.eclipse.ui.IWorkbenchActionConstants;

import org.eclipse.ui.handlers.IHandlerService;

import org.eclipse.ui.part.ViewPart;

import eu.etaxonomy.cdm.database.ICdmDataSource;

import eu.etaxonomy.taxeditor.store.StoreUtil;

import eu.etaxonomy.taxeditor.store.datasource.CdmDataSourceRepository;

import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;

/**

 * @author n.hoffmann

 * @created 14.04.2009

 * @version 1.0

 */

public class CdmDataSourceView extends ViewPart{

	public static String ID = "eu.etaxonomy.taxeditor.store.datasource.datasourceView";

	private CdmDataSourceRepository cdmDataSourceRepository;

	private TableViewer tableViewer;

	public CdmDataSourceView(){

		cdmDataSourceRepository = CdmDataSourceRepository.getDefault();

	}

	@Override

	public void createPartControl(Composite parent) {

		// Create top composite

		FillLayout fillLayout = new FillLayout();

		fillLayout.marginWidth = 0;

		fillLayout.marginHeight = 0;

		fillLayout.type = SWT.VERTICAL;	

		parent.setLayout(fillLayout);

		List<ICdmDataSource> datasources = cdmDataSourceRepository.getAll();

		tableViewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL

												| SWT.V_SCROLL | SWT.FULL_SELECTION);

		createColumns(tableViewer);

		tableViewer.setContentProvider(new CdmDataSourceContentProvider());

		tableViewer.setLabelProvider(new CdmDataSourceLabelProvider());

		tableViewer.setInput(datasources);

		// register context menu

		MenuManager menuMgr = new MenuManager();

		menuMgr.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));

		getSite().registerContextMenu(menuMgr, tableViewer);

		Control control = tableViewer.getControl();

		Menu menu = menuMgr.createContextMenu(control);

		control.setMenu(menu);	

		// connect on doubleclick

		tableViewer.addDoubleClickListener(new IDoubleClickListener() {

			public void doubleClick(DoubleClickEvent event) {

				if (event.getSelection() instanceof StructuredSelection) {

					Object element = ((StructuredSelection) event

							.getSelection()).getFirstElement();

					if (element instanceof ICdmDataSource) {

						// FIXME this is duplicated code from ChangeConnectionHandler. Replace this with a call to HandlerService. 

						ICdmDataSource dataSource = (ICdmDataSource) element;

						boolean confirmed = MessageDialog.openConfirm(StoreUtil.getShell(), "Confirm Datasource Change", "Do you really want to connect to this datasource?\n\n"

								+ dataSource.getName());

						if(confirmed){

							CdmDataSourceRepository.getDefault().setCurrentDataSource(dataSource);

						}

					}

				}

			}

		});

	}

	// This will create the columns for the table

	private void createColumns(TableViewer viewer) {

		Table table = viewer.getTable();

		String[] titles = {"Connected", "Name", "Server", "Type"};

		int[] bounds = { 20, 100, 100, 100 };

		for (int i = 0; i < titles.length; i++) {

			TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);

			column.getColumn().setText(titles[i]);

			column.getColumn().setWidth(bounds[i]);

			column.getColumn().setResizable(true);

			column.getColumn().setMoveable(true);

		}

		table.setHeaderVisible(true);

		table.setLinesVisible(true);

	}

	public void refresh(){

		tableViewer.setInput(cdmDataSourceRepository.getAll());

		tableViewer.refresh();	

	}

	@Override

	public void setFocus() {

		tableViewer.getControl().setFocus();

	}

}