org.apache.directory.studio.schemaeditor.controller.actions.DeleteProjectAction.java Source code

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Here is the source code for org.apache.directory.studio.schemaeditor.controller.actions.DeleteProjectAction.java

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/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.directory.studio.schemaeditor.controller.actions;

import java.util.Iterator;

import org.apache.directory.studio.connection.core.ConnectionCoreConstants;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.controller.ProjectsHandler;
import org.apache.directory.studio.schemaeditor.model.Project;
import org.apache.directory.studio.schemaeditor.model.Project.ProjectState;
import org.apache.directory.studio.schemaeditor.view.wrappers.ProjectWrapper;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

/**
 * This action deletes one or more Projects from the ProjectsView.
 *
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
public class DeleteProjectAction extends Action implements IWorkbenchWindowActionDelegate {
    /** The associated viewer */
    private TableViewer viewer;

    /**
     * Creates a new instance of DeleteProjectAction.
     *
     * @param view
     *      the associated view
     */
    public DeleteProjectAction(TableViewer viewer) {
        super(Messages.getString("DeleteProjectAction.DeleteProjectAction")); //$NON-NLS-1$
        setToolTipText(Messages.getString("DeleteProjectAction.DeleteProjectToolTip")); //$NON-NLS-1$
        setId(PluginConstants.CMD_DELETE_PROJECT);
        setActionDefinitionId(PluginConstants.CMD_DELETE_PROJECT);
        setImageDescriptor(Activator.getDefault().getImageDescriptor(PluginConstants.IMG_DELETE));
        setEnabled(false);
        this.viewer = viewer;
        this.viewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                StructuredSelection selection = (StructuredSelection) event.getSelection();
                if (selection.size() == 1) {
                    setText(Messages.getString("DeleteProjectAction.DeleteProjectAction")); //$NON-NLS-1$
                    setEnabled(true);
                } else if (selection.size() > 1) {
                    setText(Messages.getString("DeleteProjectAction.DeleteProjectsAction")); //$NON-NLS-1$
                    setEnabled(true);
                } else {
                    setText(Messages.getString("DeleteProjectAction.DeleteProjectAction")); //$NON-NLS-1$
                    setEnabled(false);
                }
            }
        });
    }

    /**
     * {@inheritDoc}
     */
    public void run() {
        ProjectsHandler projectsHandler = Activator.getDefault().getProjectsHandler();
        StructuredSelection selection = (StructuredSelection) viewer.getSelection();

        if (!selection.isEmpty()) {
            StringBuilder title = new StringBuilder();
            StringBuilder message = new StringBuilder();

            int count = selection.size();

            if (count <= 5) {
                if (count == 1) {
                    // Only 1 project to delete
                    title.append(Messages.getString("DeleteProjectAction.DeleteProjectTitle")); //$NON-NLS-1$
                    message.append(Messages.getString("DeleteProjectAction.SureDeleteFollowingProject")); //$NON-NLS-1$
                } else {
                    // Between 2 to 5 projects to delete
                    title.append(Messages.getString("DeleteProjectAction.DeleteProjectsTitle")); //$NON-NLS-1$
                    message.append(Messages.getString("DeleteProjectAction.SureDeleteFollowingProjects")); //$NON-NLS-1$
                }

                // Appending the projects names
                for (Iterator<?> iterator = selection.iterator(); iterator.hasNext();) {
                    message.append(ConnectionCoreConstants.LINE_SEPARATOR);
                    message.append("  - "); //$NON-NLS-1$
                    message.append(((ProjectWrapper) iterator.next()).getProject().getName());
                }
            } else {
                // More than 5 projects to delete
                title.append(Messages.getString("DeleteProjectAction.DeleteProjectsTitle")); //$NON-NLS-1$
                message.append(Messages.getString("DeleteProjectAction.SureDeleteSelectedProjects")); //$NON-NLS-1$
            }

            // Showing the confirmation window
            if (MessageDialog.openConfirm(viewer.getControl().getShell(), title.toString(), message.toString())) {
                for (Iterator<?> iterator = selection.iterator(); iterator.hasNext();) {
                    ProjectWrapper wrapper = (ProjectWrapper) iterator.next();
                    Project project = wrapper.getProject();

                    if (project.getState() == ProjectState.OPEN) {
                        // Closing the project before removing it. 
                        projectsHandler.closeProject(project);
                    }

                    projectsHandler.removeProject(project);
                }
            }
        }
    }

    /**
     * {@inheritDoc}
     */
    public void run(IAction action) {
        run();
    }

    /**
     * {@inheritDoc}
     */
    public void dispose() {
        // Nothing to do
    }

    /**
     * {@inheritDoc}
     */
    public void init(IWorkbenchWindow window) {
        // Nothing to do
    }

    /**
     * {@inheritDoc}
     */
    public void selectionChanged(IAction action, ISelection selection) {
        // Nothing to do
    }
}