/*******************************************************************************
 * Copyright (c) 2009, 2010 Progress Software Corporation.
 * 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 org.fusesource.tools.messaging.cnf.actions;

import org.eclipse.core.resources.IFile;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.fusesource.tools.messaging.cnf.model.BaseGroupComponent;
import org.fusesource.tools.messaging.cnf.model.ListenerComponent;
import org.fusesource.tools.messaging.editors.MessageEditorInput;

public class OpenMessagesEditorAction implements IObjectActionDelegate {

    private ListenerComponent selectedNode;

    public OpenMessagesEditorAction() {

    }

    public void OpenMessagesEditor(ListenerComponent listenerComp) throws PartInitException {
        if (listenerComp == null) {
            return;
        }
        IFile fileToOpen = ((BaseGroupComponent) listenerComp.getParent()).getFile();
        if (fileToOpen == null) {
            return;
        }
        MessageEditorInput editorInput = new MessageEditorInput(fileToOpen, listenerComp.getListener());
        IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        IDE.openEditor(page, editorInput, "org.fusesource.tools.messaging.editors.MessagesEditor");
    }

    public void setActivePart(IAction arg0, IWorkbenchPart arg1) {
    }

    public void run(IAction arg0) {
        try {
            OpenMessagesEditor(selectedNode);
        } catch (PartInitException e) {
            MessageDialog.openError(Display.getDefault().getActiveShell(), "Failed to open messages Editor", e
                    .getMessage());
            e.printStackTrace();
        }
    }

    public void selectionChanged(IAction arg0, ISelection arg1) {
        Object firstElement = ((StructuredSelection) arg1).getFirstElement();
        if ((firstElement instanceof ListenerComponent)) {
            selectedNode = (ListenerComponent) firstElement;
        }
    }
}