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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.navigation.navigator.e4;
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import java.util.ArrayList;
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import java.util.EnumSet;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import javax.inject.Inject;
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import org.apache.log4j.Logger;
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import org.eclipse.core.commands.operations.IUndoContext;
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import org.eclipse.e4.ui.workbench.modeling.EPartService;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.jface.viewers.ViewerDropAdapter;
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import org.eclipse.swt.dnd.DND;
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import org.eclipse.swt.dnd.DropTargetEvent;
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import org.eclipse.swt.dnd.TransferData;
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import org.eclipse.swt.widgets.Display;
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import eu.etaxonomy.cdm.api.application.CdmApplicationState;
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import eu.etaxonomy.cdm.api.service.ITaxonNodeService;
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import eu.etaxonomy.cdm.api.service.UpdateResult;
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import eu.etaxonomy.cdm.common.monitor.IRemotingProgressMonitor;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
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import eu.etaxonomy.cdm.persistence.hibernate.permission.CRUD;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.event.EventUtility;
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import eu.etaxonomy.taxeditor.event.WorkbenchEventConstants;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
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import eu.etaxonomy.taxeditor.operation.IPostMoniteredOperationEnabled;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* @author k.luther
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* @date 02.06.2015
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*/
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public class TreeNodeDropAdapterE4 extends ViewerDropAdapter implements IPostMoniteredOperationEnabled{
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protected static final String TREE_NODE_DROP_ADAPTER_UNSAVED_PARENT_MESSAGE = Messages.TreeNodeDropAdapter_UNSAVED_PARENT_MESSAGE;
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protected static final String TREE_NODE_DROP_ADAPTER_UNSAVED_PARENT = Messages.TreeNodeDropAdapter_UNSAVED_PARENT;
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protected static final String TREE_NODE_DROP_ADAPTER_MOVE_TAXON = Messages.TreeNodeDropAdapter_MOVE_TAXON;
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protected static final String TREE_NODE_DROP_ADAPTER_CANCEL = Messages.TreeNodeDropAdapter_CANCEL;
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protected static final String TREE_NODE_DROP_ADAPTER_BEHIND = Messages.TreeNodeDropAdapter_BEHIND;
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protected static final String TREE_NODE_DROP_ADAPTER_CHILD = Messages.TreeNodeDropAdapter_CHILD;
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protected static final String DO_YOU_WANT_TO_MOVE_THE_TAXONNODE_AS_CHILD_OR_BEHIND_THE_TARGET_NODE = Messages.TreeNodeDropAdapter_MOVE_BEHIND;
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protected static final String TARGET_NODE = Messages.TreeNodeDropAdapter_TARGET_NODE;
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private static final Logger logger = Logger.getLogger(TreeNodeDropAdapterE4.class);
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private TaxonNavigatorE4 taxonNavigator;
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UpdateResult result;
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public static final String ID = "eu.etaxonomy.taxeditor.navigation.navigator.dropassistant"; //$NON-NLS-1$
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private static final EnumSet<CRUD> UPDATE = EnumSet.of(CRUD.UPDATE);
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@Inject
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private EPartService partService;
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public enum MovingType{
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CHILD, PREVIOUS, BEHIND
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}
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protected TreeNodeDropAdapterE4(TaxonNavigatorE4 navigator) {
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super(navigator.getViewer());
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this.taxonNavigator = navigator;
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}
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/** {@inheritDoc} */
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@Override
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public boolean performDrop(Object data) {
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Object target = getCurrentTarget();
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if (getCurrentTarget() instanceof TaxonNodeDto) {
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Set<TaxonNodeDto> taxonNodes = getSelectedTaxa();
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TaxonNodeDto targetTreeNode = (TaxonNodeDto) target;
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if(taxonNodes != null) {
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boolean success = moveTaxon(taxonNodes, targetTreeNode);
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return success;
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}
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}
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return false;
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}
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private Set<TaxonNodeDto> getSelectedTaxa(){
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HashSet<TaxonNodeDto> taxonNodes = new HashSet();
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ISelection selection = LocalSelectionTransfer.getTransfer().getSelection();
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if (selection instanceof TreeSelection) {
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Iterator<?> selectionIterator = ((TreeSelection) selection).iterator();
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while (selectionIterator.hasNext()){
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Object object = selectionIterator.next();
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if(object instanceof TaxonNodeDto){
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TaxonNodeDto taxonNode = (TaxonNodeDto) object;
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taxonNodes.add(taxonNode);
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}
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}
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}
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return taxonNodes;
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}
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/** {@inheritDoc} */
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@Override
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public boolean validateDrop(Object target, int operation,
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TransferData transferType) {
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if (target instanceof TaxonNodeDto) {
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// check users permissions with target taxonnode and taxon
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if (target instanceof TaxonNodeDto) {
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TaxonNodeDto targetNode = (TaxonNodeDto)target;
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TaxonNode node = CdmStore.getService(ITaxonNodeService.class).load(targetNode.getUuid());
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boolean hasTargetNodePermission = CdmStore.currentAuthentiationHasPermission(node, UPDATE);
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boolean hasTargetTaxonPermission = node.getTaxon() == null ?
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true :
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CdmStore.currentAuthentiationHasPermission(node.getTaxon(), UPDATE);
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if(!hasTargetNodePermission || ! hasTargetNodePermission){
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if(logger.isDebugEnabled()){
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logger.debug("CANCEL_STATUS for target node: " + hasTargetNodePermission + " " + hasTargetTaxonPermission + " "); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
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}
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return false;
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}
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}
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// do not allow to drop onto itself and
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// check users permissions with all selected taxon nodes and taxa
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List<UUID> nodeUuids = new ArrayList<>();
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boolean isNotSameTaxonNode = true;
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boolean isNotSameParent = true;
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for(TaxonNodeDto taxonNode : getSelectedTaxa()){
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if (logger.isDebugEnabled()){
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logger.debug("selectedTaxa: " + taxonNode.getTaxonUuid() == null? "-" : taxonNode.getTitleCache()); //$NON-NLS-1$
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}
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boolean isClassification = taxonNode.getTaxonUuid()== null;
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if (isClassification) {
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if(logger.isDebugEnabled()){
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logger.debug("CANCEL_STATUS for selected classification " + taxonNode.getClassificationUUID()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
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}
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return false;
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}
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isNotSameTaxonNode = isNotSameTaxonNode && !taxonNode.equals(target);
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isNotSameParent = isNotSameParent && !taxonNode.getParentUUID().equals(((TaxonNodeDto) target).getUuid());
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nodeUuids.add(taxonNode.getUuid());
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}
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List<TaxonNode> nodes = CdmStore.getService(ITaxonNodeService.class).load(nodeUuids, null);
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boolean hasPermission = true;
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for (TaxonNode node: nodes){
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hasPermission = hasPermission && CdmStore.currentAuthentiationHasPermission(node, UPDATE) && CdmStore.currentAuthentiationHasPermission(node.getTaxon(), UPDATE);
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}
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// boolean hasTaxonPermission =
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// CdmStore.currentAuthentiationHasPermission(node.getTaxon(), UPDATE);
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if (
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!isNotSameTaxonNode
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|| !isNotSameParent
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|| !hasPermission
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) {
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if(logger.isDebugEnabled()){
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logger.debug("CANCEL_STATUS for selected " + isNotSameTaxonNode + Messages.TreeNodeDropAdapter_10 + hasPermission + " "); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
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}
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return false;
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}
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}
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logger.debug("OK_STATUS"); //$NON-NLS-1$
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return true;
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// }
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// logger.debug("CANCEL_STATUS"); //$NON-NLS-1$
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// return false;
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}
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private boolean moveTaxon(Set<TaxonNodeDto> taxonNodes, TaxonNodeDto targetITaxonTreeNode) {
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Iterator<TaxonNodeDto> taxIterator = taxonNodes.iterator();
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Set<UUID> uuids = new HashSet<UUID>();
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TaxonNodeDto node = null;
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while(taxIterator.hasNext()){
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node = taxIterator.next();
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uuids.add(node.getUuid());
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}
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IUndoContext workspaceUndoContext = taxonNavigator.getUndoContext();
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int movingTypeInt = 0;
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if (PreferencesUtil.isNodesSortedNaturally()){
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String[] buttonLables = {TREE_NODE_DROP_ADAPTER_CHILD, TREE_NODE_DROP_ADAPTER_BEHIND,TREE_NODE_DROP_ADAPTER_CANCEL};
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MessageDialog dialog = new MessageDialog(null, TARGET_NODE, null, DO_YOU_WANT_TO_MOVE_THE_TAXONNODE_AS_CHILD_OR_BEHIND_THE_TARGET_NODE, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 0);
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dialog.open();
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int returnCode = dialog.getReturnCode();
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if (returnCode == 0){
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if (workspaceUndoContext == null) {
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logger.error("Workspace undo context is null. DND operation cancelled"); //$NON-NLS-1$
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return false;
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}
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}else if (returnCode == 1){
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if (workspaceUndoContext == null) {
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logger.error("Workspace undo context is null. DND operation cancelled"); //$NON-NLS-1$
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return false;
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}
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movingTypeInt = 2;
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} else {
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return false;
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}
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}
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//close possible open name editors for the moved taxon nodes
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taxonNodes.forEach(nodeDto->EditorUtil.closeObsoleteEditor(nodeDto, partService));
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moveNodes(uuids, targetITaxonTreeNode.getUuid(), movingTypeInt);
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return true;
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}
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private void moveNodes(Set<UUID> taxonNodesToMoveUuid, UUID newParentTreeNodeUuid, int movingTypeInt){
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UUID uuid = CdmApplicationState.getLongRunningTasksService().monitLongRunningTask(taxonNodesToMoveUuid,
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newParentTreeNodeUuid, movingTypeInt);
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Display.getDefault().asyncExec(new Runnable() {
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@Override
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public void run() {
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AbstractUtility.executeMoniteredOperation("Move Taxon to new parent: ",
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uuid,
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1000,
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false,
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TreeNodeDropAdapterE4.this,
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null,
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false);
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}
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});
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}
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@Override
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public void dragOver(DropTargetEvent event) {
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super.dragOver(event);
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event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_INSERT_AFTER;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void postOperation(IRemotingProgressMonitor monitor) {
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EventUtility.postEvent(WorkbenchEventConstants.REFRESH_NAVIGATOR, true);
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}
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}
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