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.user.view;

import java.util.List;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.jface.action.GroupMarker;

import org.eclipse.jface.action.MenuManager;

import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.jface.viewers.TableViewerColumn;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.FocusAdapter;

import org.eclipse.swt.events.FocusEvent;

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.IMemento;

import org.eclipse.ui.IWorkbenchActionConstants;

import org.eclipse.ui.part.ViewPart;

import eu.etaxonomy.cdm.api.conversation.ConversationHolder;

import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;

import eu.etaxonomy.cdm.model.common.CdmBase;

import eu.etaxonomy.cdm.model.common.User;

import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;

import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;

import eu.etaxonomy.taxeditor.model.IContextListener;

import eu.etaxonomy.taxeditor.operations.IPostOperationEnabled;

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * <p>UserManagerView class.</p>

 *

 * @author n.hoffmann

 * @created 01.07.2009

 * @version 1.0

 */

public class UserManagerView extends ViewPart implements IConversationEnabled, IPostOperationEnabled{

	private class ContextListener extends ContextListenerAdapter{

		/* (non-Javadoc)

		 * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)

		 */

		@Override

		public void contextStop(IMemento memento, IProgressMonitor monitor) {

			tableViewer.setInput(null);

		}

		/* (non-Javadoc)

		 * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStart(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)

		 */

		@Override

		public void contextStart(IMemento memento, IProgressMonitor monitor) {

			tableViewer.setInput(getAllUser());

		}

	}

	/** Constant <code>ID="eu.etaxonomy.taxeditor.store.userManage"{trunked}</code> */

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

	private TableViewer tableViewer;

	private ConversationHolder conversation;

	private IContextListener contextListener;

	/* (non-Javadoc)

	 * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)

	 */

	/** {@inheritDoc} */

	@Override

	public void createPartControl(Composite parent) {

		contextListener = new ContextListener();

		CdmStore.getContextManager().addContextListener(contextListener);

		FillLayout fillLayout = new FillLayout();

		fillLayout.marginWidth = 0;

		fillLayout.marginHeight = 0;

		fillLayout.type = SWT.VERTICAL;	

		parent.setLayout(fillLayout);

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

				| SWT.V_SCROLL | SWT.FULL_SELECTION);

		getSite().setSelectionProvider(tableViewer);

		createColumns(tableViewer);

		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);	

		tableViewer.setContentProvider(new UserManagerContentProvider());

		tableViewer.setLabelProvider(new UserManagerLabelProvider());

		if(CdmStore.isActive()){

			tableViewer.setInput(getAllUser());

		}

		this.addListenerObject(new FocusAdapter() {

			/* (non-Javadoc)

			 * @see org.eclipse.swt.events.FocusAdapter#focusGained(org.eclipse.swt.events.FocusEvent)

			 */

			@Override

			public void focusGained(FocusEvent e) {

				super.focusGained(e);

				conversation.bind();

				tableViewer.getControl().setFocus();

			}

		});

	}

	// This will create the columns for the table

	private void createColumns(TableViewer viewer) {

		Table table = viewer.getTable();

		String[] titles = {"Active", "Name", "Enabled", "Locked", "Person", "Email"};

		int[] bounds = { 20, 200, 50, 50, 200, 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);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.ui.part.WorkbenchPart#setFocus()

	 */

	/** {@inheritDoc} */

	@Override

	public void setFocus() {

		if(conversation != null){

			conversation.bind();

		}

		tableViewer.getControl().setFocus();

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.taxeditor.operations.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)

	 */

	/** {@inheritDoc} */

	public boolean postOperation(CdmBase objectAffectedByOperation) {

		if(CdmStore.isActive()){

			List<User> allUsers = getAllUser();

			tableViewer.setInput(allUsers);

			tableViewer.refresh();

		}

		return true;

	}

	/**

	 * 

	 * @return

	 */

	private List<User> getAllUser(){

		conversation = CdmStore.createConversation();

		return CdmStore.getUserService().list(null, null, null, null, null);

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()

	 */

	/**

	 * <p>getConversationHolder</p>

	 *

	 * @return a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder} object.

	 */

	public ConversationHolder getConversationHolder() {

		return conversation;

	}

	/* (non-Javadoc)

	 * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)

	 */

	/** {@inheritDoc} */

	public void update(CdmDataChangeMap changeEvents) {

		// data changes can only be generate here at the moment

	}

	/** {@inheritDoc} */

	@Override

	public void dispose() {

		CdmStore.getContextManager().removeContextListener(contextListener);

		super.dispose();

	}

	/**

	 * <p>onComplete</p>

	 *

	 * @return a boolean.

	 */

	public boolean onComplete() {

		return true;

	}

}