com.iw.plugins.spindle.project.actions.AbstractTapestryProjectAction.java Source code

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Here is the source code for com.iw.plugins.spindle.project.actions.AbstractTapestryProjectAction.java

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/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Spindle, an Eclipse Plugin for Tapestry.
 *
 * The Initial Developer of the Original Code is
 * Intelligent Works Incorporated.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 
 *  glongman@intelligentworks.com
 *
 * ***** END LICENSE BLOCK ***** */

package com.iw.plugins.spindle.project.actions;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

import com.iw.plugins.spindle.TapestryPlugin;

/**
 * Copyright 2002 Intelligent Works Inc.
 * All rights reserved
 * 
 * @author gwl
 * @version $Id$
 */
public abstract class AbstractTapestryProjectAction extends Action implements IObjectActionDelegate {

    private IWorkbenchPart part;
    protected IStructuredSelection selection;

    /**
     * Constructor for AbstractCreateFromTemplateAction.
     */
    public AbstractTapestryProjectAction() {
        super();
    }

    /**
     * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
     */
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
        part = targetPart;
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection)
     */
    public void selectionChanged(IAction action, ISelection sel) {
        boolean enable = false;
        this.selection = null;

        IStructuredSelection selection = null;

        if (sel instanceof IStructuredSelection) {

            selection = (IStructuredSelection) sel;

            if (selection != null && !selection.isEmpty() && selection.size() == 1) {

                if (checkProjectIsOpenAndHasJavaNature(selection)) {

                    enable = checkSelection(selection);
                }
            }

        }
        if (enable) {

            this.selection = selection;
        }
        action.setEnabled(enable);
    }

    private boolean checkProjectIsOpenAndHasJavaNature(IStructuredSelection selection) {

        IJavaProject jproject = (IJavaProject) selection.getFirstElement();

        IProject project = jproject.getProject();

        return project.isOpen();

    }

    protected boolean checkSelection(IStructuredSelection selection) {

        IJavaProject jproject = (IJavaProject) selection.getFirstElement();

        IProject project = jproject.getProject();

        try {

            return !project.hasNature(TapestryPlugin.NATURE_ID);

        } catch (CoreException e) {

            return false;
        }

    }

    protected boolean checkHasServletJars(IJavaProject project) {

        try {

            return project.findType("javax.servlet.Servlet") != null;
        } catch (JavaModelException e) {

            Shell shell = TapestryPlugin.getDefault().getActiveWorkbenchShell();
            ErrorDialog.openError(shell, "Spindle error", "could not determine if required servlet jar is present",
                    e.getStatus());
        }
        return false;

    }

    protected boolean checkHasTapestryJars(IJavaProject project) {

        try {

            return project.findType("net.sf.tapestry.spec.IApplicationSpecification") != null;

        } catch (JavaModelException e) {

            Shell shell = TapestryPlugin.getDefault().getActiveWorkbenchShell();
            ErrorDialog.openError(shell, "Spindle error", "could not determine if required tapestry jar is present",
                    e.getStatus());
        }

        return false;
    }

    private String getName(IProject project) {

        IPath path = project.getFullPath();
        path = path.removeFileExtension();
        return path.lastSegment();

    }

}