EDIT

// $Id$

/**

 * Copyright (C) 2013 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.view.derivateSearch;

import java.util.Collection;

import java.util.List;

import java.util.Map;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.jface.action.MenuManager;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Menu;

import org.eclipse.ui.IMemento;

import org.eclipse.ui.part.ViewPart;

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

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

import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;

import eu.etaxonomy.taxeditor.model.IContextListener;

import eu.etaxonomy.taxeditor.session.ICdmEntitySession;

import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;

import eu.etaxonomy.taxeditor.store.CdmStore;

/**

 * This view allows to search for and filter {@link SpecimenOrObservationBase}s and display

 * the results in a list. The results can be selected and opened in an editor.

 */

public class DerivateSearchView extends ViewPart implements IContextListener, ICdmEntitySessionEnabled {

    public static final String ID = "eu.etaxonomy.taxeditor.view.derivateSearch.DerivateSearchView";

    private DerivateSearchCompositeController derivateSearchCompositeController;

    private ConversationHolder conversationHolder;

    private ICdmEntitySession cdmEntitySession;

    /**

     * Constructs a new DerivateSearchView and registers it to listen to context changes

     */

    public DerivateSearchView() {

        CdmStore.getContextManager().addContextListener(this);

    }

    @Override

    public void createPartControl(Composite parent) {

        derivateSearchCompositeController = new DerivateSearchCompositeController(parent, this);

        getSite().setSelectionProvider(derivateSearchCompositeController.getResultViewer());

        derivateSearchCompositeController.setEnabled(CdmStore.isActive());

        //create context menu

        MenuManager menuManager = new MenuManager();

        getSite().registerContextMenu(menuManager, derivateSearchCompositeController.getResultViewer());

        Control control = derivateSearchCompositeController.getResultViewer().getControl();

        Menu menu = menuManager.createContextMenu(control);

        control.setMenu(menu);

    }

    @Override

    public void setFocus() {

        derivateSearchCompositeController.setFocus();

        //make sure to bind again if maybe in another view the conversation was unbound

        if(getConversationHolder()!=null && !getConversationHolder().isClosed() && !getConversationHolder().isBound()){

            getConversationHolder().bind();

        }

        if(getCdmEntitySession() != null) {

            getCdmEntitySession().bind();

        }

    }

    @Override

    public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {

    }

    @Override

    public void contextStop(IMemento memento, IProgressMonitor monitor) {

        derivateSearchCompositeController.setEnabled(false);

        derivateSearchCompositeController.reset();

    }

    @Override

    public void contextStart(IMemento memento, IProgressMonitor monitor) {

        derivateSearchCompositeController.setEnabled(true);

    }

    @Override

    public void contextRefresh(IProgressMonitor monitor) {

        initConversation();

        initSession();

    }

    private void initSession() {

        if(CdmStore.isActive()) {

            cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);

        }

    }

    private void initConversation(){

        if(conversationHolder==null){

            conversationHolder = CdmStore.createConversation();

            derivateSearchCompositeController.setConversation(conversationHolder);

        }

    }

    @Override

    public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {

    }

    public ConversationHolder getConversationHolder() {

        if(CdmStore.isActive() && conversationHolder==null){

            initConversation();

        }

        return conversationHolder;

    }

    @Override

    public void dispose() {

        if(conversationHolder!=null){

            conversationHolder.close();

        }

        if(cdmEntitySession != null) {

            cdmEntitySession.dispose();

        }

        super.dispose();

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getCdmEntitySession()

     */

    @Override

    public ICdmEntitySession getCdmEntitySession() {

        initSession();

        return cdmEntitySession;

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()

     */

    @Override

    public <T extends CdmBase> Collection<T> getRootEntities() {

        // TODO Auto-generated method stub

        return null;

    }

    /* (non-Javadoc)

     * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getPropertyPathsMap()

     */

    @Override

    public Map<Object, List<String>> getPropertyPathsMap() {

        // TODO Auto-generated method stub

        return null;

    }

}