testlink.eclipse.plugin.handlers.ChooseProjectHandler.java Source code

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Here is the source code for testlink.eclipse.plugin.handlers.ChooseProjectHandler.java

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/*
 * Daniel R Padilla
 *
 * Copyright (c) 2009, Daniel R Padilla
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package testlink.eclipse.plugin.handlers;

import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jdt.core.IJavaModel;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.JavaElementLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;

public class ChooseProjectHandler extends SelectorHandler {
    public ChooseProjectHandler(Shell shell) {
        super(shell);
    }

    public void handle(Label wLabel, Text text, Button button) {
        super.handle(wLabel, text, button);
        IJavaProject project = chooseJavaProject();
        if (project == null) {
            return;
        }

        String projectName = project.getElementName();
        text.setText(projectName);
    }

    /*
     * Realize a Java Project selection dialog and return the first selected project,
     * or null if there was none.
     */
    private IJavaProject chooseJavaProject() {
        IJavaProject[] projects;
        try {
            projects = JavaCore.create(getWorkspaceRoot()).getJavaProjects();
        } catch (JavaModelException e) {
            // JUnitPlugin.log(e.getStatus());
            projects = new IJavaProject[0];
        }

        ILabelProvider labelProvider = new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT);
        ElementListSelectionDialog dialog = new ElementListSelectionDialog(getShell(), labelProvider);
        dialog.setTitle("Choose Project");
        dialog.setMessage("Choose Project");
        dialog.setElements(projects);

        IJavaProject javaProject = getJavaProject();
        if (javaProject != null) {
            dialog.setInitialSelections(new Object[] { javaProject });
        }
        if (dialog.open() == Window.OK) {
            return (IJavaProject) dialog.getFirstResult();
        }
        return null;
    }

    /*
     * Convenience method to get the workspace root.
     */
    private IWorkspaceRoot getWorkspaceRoot() {
        return ResourcesPlugin.getWorkspace().getRoot();
    }

    /*
     * Return the IJavaProject corresponding to the project name in the project name
     * text field, or null if the text does not match a project name.
     */
    private IJavaProject getJavaProject() {
        String projectName = text.getText().trim();
        if (projectName.length() < 1) {
            return null;
        }
        return getJavaModel().getJavaProject(projectName);
    }

    /*
     * Convenience method to get access to the java model.
     */
    private IJavaModel getJavaModel() {
        return JavaCore.create(getWorkspaceRoot());
    }

}