org.wso2.developerstudio.datamapper.diagram.custom.action.ConfigureCustomFunctionAction.java Source code

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Here is the source code for org.wso2.developerstudio.datamapper.diagram.custom.action.ConfigureCustomFunctionAction.java

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/*
 * Copyright 2014 WSO2, Inc. (http://wso2.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.wso2.developerstudio.datamapper.diagram.custom.action;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.common.ui.action.AbstractActionHandler;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PlatformUI;
import org.wso2.developerstudio.datamapper.CustomFunction;
import org.wso2.developerstudio.datamapper.diagram.custom.dialogs.ConfigureCustomFunctionOperatorDialog;

public class ConfigureCustomFunctionAction extends AbstractActionHandler {

    CompoundCommand resultCommand;

    /**
     * Creates a new {@link ConfigureSwitchMediatorAction} instance.
     * 
     * @param part
     *            a {@link IWorkbenchPart} instance.
     */
    public ConfigureCustomFunctionAction(IWorkbenchPart part) {
        super(part);
        setId("configure-custom-function-action");
        setText("Configure Custom Function Properties");
        setToolTipText("Configure Custom Function Operator");
        ISharedImages workbenchImages = PlatformUI.getWorkbench().getSharedImages();
        setImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_NEW_WIZARD));
    }

    /**
     * {@inheritDoc}
     */
    protected void doRun(IProgressMonitor progressMonitor) {
        EditPart selectedEP = getSelectedEditPart();
        EObject selectedObj = ((View) selectedEP.getModel()).getElement();
        Dialog configureCustomFunction = new ConfigureCustomFunctionOperatorDialog(
                Display.getDefault().getActiveShell(), (CustomFunction) selectedObj, getEditingDomain(),
                selectedEP);
        configureCustomFunction.setBlockOnOpen(true);
        configureCustomFunction.open();
    }

    @Override
    public void refresh() {
        // TODO Auto-generated method stub

    }

    protected EditPart getSelectedEditPart() {
        IStructuredSelection selection = getStructuredSelection();
        if (selection.size() == 1) {
            Object selectedEP = selection.getFirstElement();
            if (selectedEP instanceof EditPart) {
                return (EditPart) selectedEP;
            }
        }

        return null; /* In case of selecting the wrong editpart */
    }

    /**
     * Utility method for calculating the editing domain.
     * 
     * @return editing domain for this action.
     */
    protected TransactionalEditingDomain getEditingDomain() {
        // try adapting the workbench part
        IWorkbenchPart part = getWorkbenchPart();

        if (part != null) {
            IEditingDomainProvider edProvider = (IEditingDomainProvider) part
                    .getAdapter(IEditingDomainProvider.class);

            if (edProvider != null) {
                EditingDomain domain = edProvider.getEditingDomain();

                if (domain instanceof TransactionalEditingDomain) {
                    return (TransactionalEditingDomain) domain;
                }
            }
        }

        return null;
    }

}