org.apache.directory.studio.ldapservers.actions.PropertiesAction.java Source code

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Here is the source code for org.apache.directory.studio.ldapservers.actions.PropertiesAction.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.ldapservers.actions;

import org.apache.directory.studio.ldapservers.LdapServersPluginConstants;
import org.apache.directory.studio.ldapservers.model.LdapServer;
import org.apache.directory.studio.ldapservers.views.ServersView;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.dialogs.PreferencesUtil;

/**
 * This class implements the properties action for a server.
 *
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
public class PropertiesAction extends Action implements IWorkbenchWindowActionDelegate {
    /** The associated view */
    private ServersView view;

    /**
     * Creates a new instance of PropertiesAction.
     */
    public PropertiesAction() {
        super(Messages.getString("PropertiesAction.Properties")); //$NON-NLS-1$
        init();
    }

    /**
     * Creates a new instance of PropertiesAction.
     * 
     * @param view
     *      the associated view
     */
    public PropertiesAction(ServersView view) {
        super(Messages.getString("PropertiesAction.Properties")); //$NON-NLS-1$
        this.view = view;
        init();
    }

    /**
     * Initializes the action.
     */
    private void init() {
        setId(LdapServersPluginConstants.CMD_PROPERTIES);
        setActionDefinitionId(LdapServersPluginConstants.CMD_PROPERTIES);
        setToolTipText(Messages.getString("PropertiesAction.PropertiesToolTip")); //$NON-NLS-1$
    }

    /**
     * {@inheritDoc}
     */
    public void run() {
        if (view != null) {
            StructuredSelection selection = (StructuredSelection) view.getViewer().getSelection();
            if (!selection.isEmpty()) {
                LdapServer server = (LdapServer) selection.getFirstElement();
                PreferenceDialog dialog = PreferencesUtil.createPropertyDialogOn(view.getViewSite().getShell(),
                        server, LdapServersPluginConstants.PROP_SERVER_PROPERTY_PAGE, null, null);
                dialog.getShell().setText(NLS.bind(Messages.getString("PropertiesAction.PropertiesFor"), //$NON-NLS-1$
                        shorten(server.getName(), 30)));
                dialog.open();
            }
        }
    }

    /**
     * Shortens the given label to the given maximum length
     * and filters non-printable characters.
     * 
     * @param label the label
     * @param maxLength the max length
     * 
     * @return the shortened label
     */
    public static String shorten(String label, int maxLength) {
        if (label == null) {
            return null;
        }

        // shorten label
        if (maxLength < 3) {
            return "..."; //$NON-NLS-1$
        }
        if (label.length() > maxLength) {
            label = label.substring(0, maxLength / 2) + "..." //$NON-NLS-1$
                    + label.substring(label.length() - maxLength / 2, label.length());

        }

        // filter non-printable characters
        StringBuffer sb = new StringBuffer(maxLength + 3);
        for (int i = 0; i < label.length(); i++) {
            char c = label.charAt(i);
            if (Character.isISOControl(c)) {
                sb.append('.');
            } else {
                sb.append(c);
            }
        }

        return sb.toString();
    }

    /**
     * {@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
    }
}