org.opennms.features.topology.ssh.internal.SSHWindow.java Source code

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Here is the source code for org.opennms.features.topology.ssh.internal.SSHWindow.java

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/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2012-2014 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
 *     http://www.opennms.org/
 *     http://www.opennms.com/
 *******************************************************************************/

package org.opennms.features.topology.ssh.internal;

import org.apache.sshd.ClientSession;

import com.vaadin.ui.Alignment;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;

/**
 * This class creates a window to hold the terminal emulator
 * @author lmbell
 * @author pdgrenon
 */
@SuppressWarnings("serial")
public class SSHWindow extends Window {
    private SSHTerminal terminal; // The terminal emulator
    private static final Label errorLabel = new Label("Could not create session");
    private static final int TERM_WIDTH = 80;
    private static final int TERM_HEIGHT = 24;

    /**
     * The constructor for the SSH window
     * 
     * @param session The current SSH session
     * @param width The width of the window
     * @param height The height of the window
     */
    public SSHWindow(ClientSession session, int width, int height) {
        super("SSH");
        setImmediate(true);
        setResizeLazy(false);
        setWidth("" + width + "px");
        setHeight("" + height + "px");

        VerticalLayout vPanel = new VerticalLayout();
        vPanel.setWidth("100%");
        vPanel.setHeight("100%");

        if (session != null) {
            terminal = new SSHTerminal(this, session, TERM_WIDTH, TERM_HEIGHT);
            vPanel.addComponent(terminal);
            vPanel.setComponentAlignment(terminal, Alignment.TOP_CENTER);
        } else {
            vPanel.addComponent(errorLabel);
            vPanel.setComponentAlignment(errorLabel, Alignment.MIDDLE_CENTER);
        }
        setContent(vPanel);
    }

    @Override
    public void attach() {
        super.attach();

        int posX = (int) (getUI().getPage().getBrowserWindowWidth() - getWidth()) / 2;
        int posY = (int) (getUI().getPage().getBrowserWindowHeight() - getHeight()) / 2;

        setPositionX(posX);
        setPositionY(posY);
    }

    /**
     * Overrides the window close method to instead close the terminal
     */
    @Override
    public void close() {
        terminal.close();
    }
}