net.sf.jvifm.Main.java Source code

Introduction

Here is the source code for net.sf.jvifm.Main.java

Source

/*
 * Jvifm - Java vifm (File Manager with vi like key binding)
 *
 * Copyright (C) 2006 wsn <shrek.wang@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

package net.sf.jvifm;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.io.RandomAccessFile;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;

import net.sf.jvifm.control.CommandRegister;
import net.sf.jvifm.control.FindCommand;
import net.sf.jvifm.control.ListFileCommand;
import net.sf.jvifm.control.MetaCommand;
import net.sf.jvifm.control.MiscFileCommand;
import net.sf.jvifm.control.TouchCommand;
import net.sf.jvifm.model.AppStatus;
import net.sf.jvifm.model.BookmarkManager;
import net.sf.jvifm.model.MimeManager;
import net.sf.jvifm.model.ShortcutsManager;
import net.sf.jvifm.ui.FileLister;
import net.sf.jvifm.ui.FileManager;
import net.sf.jvifm.util.AutoCompleteUtil;
import net.sf.jvifm.util.FileListerServer;
import net.sf.jvifm.util.HomeLocator;

import org.apache.commons.cli.Options;
import org.apache.commons.io.FilenameUtils;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class Main {

    public static FileManager fileManager;
    public static Display display;
    public static Shell shell;

    public static int operatingSystem;
    public static final int LINUX = 1;
    public static final int WINDOWS = 2;

    private static FileLock fileLock;

    static {
        if (System.getProperty("os.name").toUpperCase().indexOf("WINDOWS") != -1) {
            operatingSystem = WINDOWS;
        } else {
            operatingSystem = LINUX;
        }
    }

    public static void main(String[] args) {
        initConfigDir();
        boolean locked = createFileLock();
        if (!locked)
            return;

        initCommandRegister();
        initServer();
        initSysExeNameList();

        try {
            File logFile = new File(HomeLocator.getConfigHome() + File.separator + "jvifm.log");
            PrintStream ps = new PrintStream(new FileOutputStream(logFile));
            //System.setOut(ps);
            //System.setErr(ps);
        } catch (Exception e) {
            e.printStackTrace();
        }

        display = new Display();
        fileManager = new FileManager();
        shell = fileManager.open(display);
        String[][] panelDirs = AppStatus.loadAppStatus();
        if (!(panelDirs == null) && panelDirs.length > 0) {
            for (int i = 0; i < panelDirs.length; i++) {
                String leftPath = FileLister.FS_ROOT;
                String rightPath = FileLister.FS_ROOT;
                if (panelDirs[i][0] != null && new File(panelDirs[i][0]).isDirectory()) {
                    leftPath = panelDirs[i][0];
                }
                if (panelDirs[i][1] != null && new File(panelDirs[i][1]).isDirectory()) {
                    rightPath = panelDirs[i][1];
                }
                fileManager.tabnew(leftPath, rightPath);
            }
        } else {
            fileManager.tabnew(FileLister.FS_ROOT, FileLister.FS_ROOT);
        }

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }

    }

    public static boolean createFileLock() {
        File lockFile = new File(FilenameUtils.concat(HomeLocator.getConfigHome(), ".lock"));
        try {
            FileChannel channel = new RandomAccessFile(lockFile, "rw").getChannel();
            fileLock = channel.tryLock();
            if (fileLock != null) {
                return true;
            }
        } catch (Exception e) {
        }
        return false;
    }

    public static void releaseLockFile() {
        try {
            fileLock.release();
        } catch (Exception e) {
        }
    }

    public static void initConfigDir() {
        File file = new File(HomeLocator.getConfigHome());
        if (!file.exists())
            file.mkdir();
    }

    public static void initServer() {
        try {
            new FileListerServer().start();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void initSysExeNameList() {
        AutoCompleteUtil.initSysExeNameList();
    }

    public static void exit() {
        releaseLockFile();
        BookmarkManager.getInstance().store();
        ShortcutsManager.getInstance().store();
        MimeManager.getInstance().store();
        AppStatus.writeAppStatus();
        shell.dispose();
        display.dispose();
        System.exit(0);
    }

    public static void initCommandRegister() {
        CommandRegister commandRegister = CommandRegister.getInstance();

        commandRegister.register("find", FindCommand.options);
        commandRegister.register("ls", ListFileCommand.options);
        commandRegister.register("touch", TouchCommand.options);
        commandRegister.register("mkdir", new Options());
        commandRegister.register("compress", new Options());

        String[] cmdNames = MetaCommand.getCmdNames();
        for (int i = 0; i < cmdNames.length; i++) {
            commandRegister.register(cmdNames[i], new Options());
        }
        cmdNames = MiscFileCommand.getCmdNames();
        for (int i = 0; i < cmdNames.length; i++) {
            commandRegister.register(cmdNames[i], new Options());
        }

    }

}