EDIT

/**

* 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.editor.group.authority.e4;

import javax.annotation.PostConstruct;

import javax.annotation.PreDestroy;

import javax.inject.Inject;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.e4.ui.di.Focus;

import org.eclipse.e4.ui.di.Persist;

import org.eclipse.e4.ui.model.application.ui.MDirtyable;

import org.eclipse.e4.ui.model.application.ui.basic.MPart;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.FillLayout;

import org.eclipse.swt.widgets.Composite;

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

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

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

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

import eu.etaxonomy.taxeditor.editor.group.authority.CdmAuthorityEditorInput;

import eu.etaxonomy.taxeditor.editor.l10n.Messages;

import eu.etaxonomy.taxeditor.model.IDirtyMarkable;

import eu.etaxonomy.taxeditor.ui.group.grantedauthority.CdmAuthorityCompositeViewer;

/**

 * Editor responsible for editing authorities related to a particular {@link Group} entity.

 *

 * @author cmathew

 * @created Mar 28, 2013

 *

 */

public class CdmAuthorityEditorE4 implements IConversationEnabled, IDirtyMarkable {

	public static final String ID = "eu.etaxonomy.taxeditor.editor.group.authority"; //$NON-NLS-1$

	@Inject

	private MDirtyable dirty;

	private ConversationHolder conversation;

	private CdmAuthorityCompositeViewer viewer;

	private CdmAuthorityEditorInput input;

	@Inject

	private MPart thisPart;

    private Composite container;

	@Inject

	public CdmAuthorityEditorE4() {

	}

	/**

	 * Create contents of the editor part.

	 * @param parent

	 */

	@PostConstruct

	public void createPartControl(Composite parent) {

		container = new Composite(parent, SWT.NONE);

		container.setLayout(new FillLayout(SWT.HORIZONTAL));

	}

	@Focus

	public void setFocus() {

	    if(input!=null){

	        input.bind();

	    }

	}

	@Persist

	public void doSave(IProgressMonitor monitor) {

		try {

			monitor.beginTask(Messages.CdmAuthorityEditor_SAVING_AUTHORITY_EDITOR, 1);

			getConversationHolder().commit(true);

			input.merge();

			dirty.setDirty(false);

			monitor.worked(1);

		} finally {

			monitor.done();

			viewer.save();

		}

	}

	public void init(CdmAuthorityEditorInput input) {

	    this.input = input;

        conversation = input.getConversationHolder();

        this.viewer = new CdmAuthorityCompositeViewer(container, this,input.getGroup());

        thisPart.setLabel(input.getName());

	}

	public boolean isDirty() {

		return dirty.isDirty();

	}

	@Override

	public void update(CdmDataChangeMap changeEvents) {

	}

	@Override

	public void changed(Object element) {

		//FIXME : should be optimised to split changes into adding / removing authorities

		//        vs updating authorites

		dirty.setDirty(viewer.isDirty());

		// if the change has happened on the group then refresh the table

		if(element instanceof Group) {

			//FIXME: activating (setting focus) on the editor happens on every change

			//       This should be changed to only when the drop is successful

		    //FIXME E4 migrate/delete

//			getSite().getPage().activate(this);

		}

	}

	@Override

	public void forceDirty() {

	    changed(null);

	}

	@Override

	public ConversationHolder getConversationHolder() {

		return conversation;

	}

	@PreDestroy

	public void dispose() {

	    if(conversation!=null){

	        conversation.unregisterForDataStoreChanges(this);

	        conversation.close();

	        conversation = null;

	    }

		if(input!=null){

		    input.getCdmEntitySession().dispose();

		}

	}

}