com.bluexml.side.form.common.GroupAttributeAction.java Source code

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Here is the source code for com.bluexml.side.form.common.GroupAttributeAction.java

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/*
Copyright (C) 2007-2011  BlueXML - www.bluexml.com
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
    
*/

package com.bluexml.side.form.common;

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

import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.command.AddCommand;
import org.eclipse.emf.edit.command.DeleteCommand;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.ui.IWorkbenchPart;

import com.bluexml.side.form.Field;
import com.bluexml.side.form.FormAspect;
import com.bluexml.side.form.FormElement;
import com.bluexml.side.form.FormFactory;
import com.bluexml.side.form.FormGroup;
import com.bluexml.side.form.FormPackage;
import com.bluexml.side.form.SearchField;
import com.bluexml.side.form.common.utils.InternalModification;

public class GroupAttributeAction extends Action implements ISelectionChangedListener {

    protected List<EObject> selectedObjects;
    private EditingDomain domain;

    public void selectionChanged(SelectionChangedEvent event) {
        if (event.getSelection() instanceof IStructuredSelection) {
            setEnabled(updateSelection((IStructuredSelection) event.getSelection()));
        } else {
            setEnabled(false);
        }
    }

    public boolean updateSelection(IStructuredSelection selection) {
        selectedObjects = new ArrayList<EObject>();
        for (Iterator<?> objects = selection.iterator(); objects.hasNext();) {
            Object object = objects.next();
            if (object instanceof Field || object instanceof FormAspect || object instanceof SearchField) {
                // fix for #1641: added SearchField to the if condition
                selectedObjects.add((EObject) object);
            } else {
                return false;
            }
        }

        return selectedObjects.size() > 0;
    }

    @Override
    public void run() {
        super.run();
        doAction(selectedObjects);
    }

    private void doAction(List<EObject> l) {
        InternalModification.dontMoveToDisabled();
        CompoundCommand cc = new CompoundCommand();

        FormElement fe = (FormElement) l.get(0).eContainer();
        int index = ((FormGroup) fe).getChildren().lastIndexOf(l.get(0));
        FormGroup newGroup = FormFactory.eINSTANCE.createFormGroup();
        newGroup.setLabel("New group");
        //newGroup.getChildren().addAll((Collection<? extends FormElement>) l);
        //AddCommand.create(domain, newGroup, FormPackage.eINSTANCE.getFormGroup_Children(), l);
        Command addCmd = AddCommand.create(domain, fe, FormPackage.eINSTANCE.getFormGroup_Children(), newGroup,
                index);
        cc.append(addCmd);
        Command mvCmd = AddCommand.create(domain, newGroup, FormPackage.eINSTANCE.getFormGroup_Children(),
                EcoreUtil.copyAll(l));
        cc.append(mvCmd);
        Command delCmd = DeleteCommand.create(domain, l);
        cc.append(delCmd);

        domain.getCommandStack().execute(cc);
        InternalModification.moveToDisabled();
    }

    @Override
    public String getText() {
        return "Group in a new group";
    }

    public void setActiveWorkbenchPart(IWorkbenchPart workbenchPart) {
        if (workbenchPart instanceof IEditingDomainProvider) {
            domain = ((IEditingDomainProvider) workbenchPart).getEditingDomain();
        }
    }

}