com.ecfeed.ui.modelif.NodeSelectionUtils.java Source code

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Here is the source code for com.ecfeed.ui.modelif.NodeSelectionUtils.java

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/*******************************************************************************
 *
 * Copyright (c) 2016 ecFeed AS.                                                
 * All rights reserved. This program and the accompanying materials              
 * are made available under the terms of the Eclipse Public License v1.0         
 * which accompanies this distribution, and is available at                      
 * http://www.eclipse.org/legal/epl-v10.html 
 *  
 *******************************************************************************/

package com.ecfeed.ui.modelif;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;

import com.ecfeed.core.model.AbstractNode;

public class NodeSelectionUtils {

    private ISelectionProvider fSelectionProvider;

    public NodeSelectionUtils(ISelectionProvider selectionProvider) {
        fSelectionProvider = selectionProvider;
    }

    public SelectionInterface getSelectionInterface(IModelUpdateContext context) {
        SelectionInterface selectionIf = new SelectionInterface(context);
        selectionIf.setTarget(getSelectedNodes());
        return selectionIf;
    }

    public boolean isSelectionSibling() {
        List<AbstractNode> nodes = getSelectedNodes();
        if (nodes.isEmpty())
            return false;
        AbstractNode parent = nodes.get(0).getParent();
        for (AbstractNode node : nodes) {
            if (node.getParent() != parent)
                return false;
        }
        return true;
    }

    public boolean isSelectionSingleType() {
        List<AbstractNode> nodes = getSelectedNodes();
        if (nodes.isEmpty())
            return false;
        Class<?> type = nodes.get(0).getClass();
        for (AbstractNode node : nodes) {
            if (node.getClass().equals(type) == false)
                return false;
        }
        return true;
    }

    public List<AbstractNode> getSelectedNodes() {
        List<AbstractNode> result = new ArrayList<>();
        IStructuredSelection selection = (IStructuredSelection) fSelectionProvider.getSelection();
        for (Object o : selection.toList()) {
            if (o instanceof AbstractNode) {
                result.add((AbstractNode) o);
            }
        }
        return result;
    }

}