/*
 * IzPack - Copyright 2001-2005 Julien Ponge, All Rights Reserved.
 * 
 * http://www.izforge.com/izpack/
 * http://developer.berlios.de/projects/izpack/
 * 
 * Copyright 2002 Elmar Grom
 * 
 * Licensed 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 com.izforge.izpack.util.os;

import java.io.UnsupportedEncodingException;
import java.util.Vector;

/*---------------------------------------------------------------------------*/
/**
 * This class represents a shortcut in a operating system independent way. OS specific subclasses
 * are used to implement the necessary mapping from this generic API to the classes that reflect the
 * system dependent AIP.
 * 
 * @see com.izforge.izpack.util.TargetFactory
 * 
 * @version 0.0.1 / 3/4/02
 * @author Elmar Grom
 */
public class Shortcut
{

    // ------------------------------------------------------------------------
    // Constant Definitions
    // ------------------------------------------------------------------------
    public static final int APPLICATIONS = 1;

    public static final int START_MENU = 2;

    public static final int DESKTOP = 3;

    public static final int START_UP = 4;

    /** Hide the window when starting. */
    public static final int HIDE = 0;

    /**
     * Show the window 'normal' when starting. Usually restores the window properties at the last
     * shut-down.
     */
    public static final int NORMAL = 1;

    public static final int MINIMIZED = 2;

    /** Show the window maximized when starting. */
    public static final int MAXIMIZED = 3;

    /** identifies the user type as the current user */
    public static final int CURRENT_USER = 1;

    /** identifies the user type as valid for all users */
    public static final int ALL_USERS = 2;

    /** indicates that this shortcut should be created for all users or only me **/
    private Boolean createForAll;

    /*--------------------------------------------------------------------------*/
    /**
     * This method initializes the object. It is used as a replacement for the contructor because of
     * the way it is instantiated through the <code>TargetFactory</code>.
     * 
     * @param type the type or classification of the program group in which the link should exist.
     * @param name the name of the shortcut.
     */
    public void initialize(int type, String name) throws Exception
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Returns the base path of the shortcut depending on type. The base path is the directory that
     * the short cut, (or its program group) will be created in. For instance, on Windows NT, a
     * shortcut with user-type ALL_USERS, and link-type DESKTOP might have the base path
     * "C:\Program&nbsp;Files\All&nbsp;Users\Desktop"
     * 
     * @see #setLinkType(int)
     * @see #setUserType(int)
     */
    public String getBasePath() throws Exception
    {
        return ("");
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Returns a list of currently existing program groups, based on the requested type. For example
     * if the type is <code>APPLICATIONS</code> then all the names of the program groups in the
     * Start Menu\Programs menu would be returned.
     * 
     * @param userType the type of user for the program group set.
     * 
     * @return a <code>Vector</code> of <code>String</code> objects that represent the names of
     * the existing program groups. It is theoretically possible that this list is empty.
     * 
     * @see #APPLICATIONS
     * @see #START_MENU
     */
    public Vector getProgramGroups(int userType)
    {
        return (null);
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Subclass implementations return the fully qualified file name under which the link is saved
     * on disk. <b>Note:</b> this method returns valid results only if the instance was created
     * from a file on disk or after a successful save operation. An instance of this class returns
     * an empty string.
     * 
     * @return an empty <code>String</code>
     */
    public String getFileName()
    {
        return ("");
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Subclass implementations return the path of the directory where the link file is stored, if
     * it was necessary during the previous save operation to create the directory. This method
     * returns <code>null</code> if no save operation was carried out or there was no need to
     * create a directory during the previous save operation.
     * 
     * @return this implementation returns always <code>null</code>.
     */
    public String getDirectoryCreated()
    {
        return (null);
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Returns <code>true</code> if the target OS supports current user and all users.
     * 
     * @return <code>true</code> if the target OS supports current and all users.
     */
    public boolean multipleUsers()
    {
        return (false);
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Determines if a specific instance of this class supports the creation of shortcuts. The use
     * of this method might seem odd, since one would not implement a flavor of this class that does
     * not actually support the creation of shortcuts. In other words all flavors will in all
     * probability return true. The only version that can be expected to return false is this class
     * itself, since it has no actual implementation for shortcut creation. This is left to OS
     * specific flavors. If the installer is launched on a unsupported OS there will be no
     * appropriate flavor of this class, which will cause this class itself to be instantiated. The
     * client code can now determine by calling this method if the active OS is supported and take
     * appropriate action.
     * 
     * @return <code>true</code> if the creation of shortcuts is supported, <code>false</code>
     * if this is not supported.
     */
    public boolean supported()
    {
        return (false);
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the command line arguments that will be passed to the target when the link is activated.
     * 
     * @param arguments the command line arguments
     */
    public void setArguments(String arguments)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the description string that is used to identify the link in a menu or on the desktop.
     * 
     * @param description the descriptiojn string
     */
    public void setDescription(String description)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the location of the icon that is shown for the shortcut on the desktop.
     * 
     * @param path a fully qualified file name of a file that contains the icon.
     * @param index the index of the specific icon to use in the file. If there is only one icon in
     * the file, use an index of 0.
     */
    public void setIconLocation(String path, int index)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * returns icon Location
     * 
     * @return iconLocation
     */
    public String getIconLocation()
    {
        return "";
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the name of the program group this ShellLinbk should be placed in.
     * 
     * @param groupName the name of the program group
     */
    public void setProgramGroup(String groupName)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the show command that is passed to the target application when the link is activated.
     * The show command determines if the the window will be restored to the previous size,
     * minimized, maximized or visible at all. <br>
     * <br>
     * <b>Note:</b><br>
     * Using <code>HIDE</code> will cause the target window not to show at all. There is not even
     * a button on the taskbar. This is a very useful setting when batch files are used to launch a
     * Java application as it will then appear to run just like any native Windows application.<br>
     * 
     * @param show the show command. Valid settings are: <br>
     * <ul>
     * <li>{@link com.izforge.izpack.util.os.Shortcut#HIDE}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#NORMAL}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#MINIMIZED}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#MAXIMIZED}
     * </ul>
     * 
     * @see #getShowCommand
     */
    public void setShowCommand(int show)
    {
    }

    /*
     * retrieves showCommand from the OS. Translates it into Shortcut.XXX terms.
     */
    public int getShowCommand()
    {
        return Shortcut.NORMAL;
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the absolute path to the shortcut target.
     * 
     * @param path the fully qualified file name of the target
     */
    public void setTargetPath(String path)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the working directory for the link target.
     * 
     * @param dir the working directory
     */
    public void setWorkingDirectory(String dir)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Gets the working directory for the link target.
     * 
     * @return the working directory.
     */
    public String getWorkingDirectory()
    {
        return "";
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the name shown in a menu or on the desktop for the link.
     * 
     * @param name The name that the link should display on a menu or on the desktop. Do not include
     * a file extension.
     */
    public void setLinkName(String name)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Gets the type of link types are: <br>
     * <ul>
     * <li>{@link com.izforge.izpack.util.os.Shortcut#DESKTOP}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#APPLICATIONS}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#START_MENU}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#START_UP}
     * </ul>
     */
    public int getLinkType()
    {
        // fake default.
        return Shortcut.DESKTOP;
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the type of link
     * 
     * @param type The type of link desired. The following values can be set:<br>
     * <ul>
     * <li>{@link com.izforge.izpack.util.os.Shortcut#DESKTOP}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#APPLICATIONS}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#START_MENU}
     * <li>{@link com.izforge.izpack.util.os.Shortcut#START_UP}
     * </ul>
     * 
     * @exception IllegalArgumentException if an an invalid type is passed
     * @throws UnsupportedEncodingException 
     */
    public void setLinkType(int type) throws IllegalArgumentException, UnsupportedEncodingException
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the user type for the link
     * 
     * @param type the type of user for the link.
     * 
     * @see #CURRENT_USER
     * @see #ALL_USERS
     */
    public void setUserType(int type)
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Gets the user type for the link
     * 
     * @return userType
     * @see #CURRENT_USER
     * @see #ALL_USERS
     */
    public int getUserType()
    {
        return CURRENT_USER;
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Saves this link.
     * 
     * @exception Exception if problems are encountered
     */
    public void save() throws Exception
    {
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Gets the link hotKey
     * 
     * @return int hotKey
     */
    public int getHotkey()
    {
        return 0;
    }

    /*--------------------------------------------------------------------------*/
    /**
     * Sets the link hotKey
     * 
     * @param hotkey
     */
    public void setHotkey(int hotkey)
    {
    }

    /**
     * Sets the Encoding
     * 
     * @param string
     */
    public void setEncoding(String string)
    {
    }

    /**
     * This sets the Mimetype
     * 
     * @param string
     */
    public void setMimetype(String string)
    {
    }

    /**
     * Sets the terminal
     * 
     * @param string
     */
    public void setTerminal(String string)
    {
    }

    /**
     * This sets the terminals-options
     * 
     * @param string
     */
    public void setTerminalOptions(String string)
    {
    }

    /**
     * This sets the shortcut type
     * 
     * @param string
     */
    public void setType(String string)
    {
    }

    /**
     * This sets the KdeSubstUID
     * 
     * @param string
     */
    public void setKdeSubstUID(String string)
    {
    }

    /**
     * This sets the URL
     * 
     * @param string
     */
    public void setURL(String string)
    {
    }

    /** 
     * Gets the Programs Folder for the given User.     
     * This is where to create subfolders or to place or create shortcuts.   
     *
     * @param current_user one of current or all 
     *
     * @return The Foldername or null on unsupported platforms.
     */
    public String getProgramsFolder( int current_user )
    {
      return null;
    }

    /** 
     * Sets the flag which indicates, that this should created for all. 
     *
     * @param aCreateForAll A Flag - Set to true, if to create for All.
     */
    public void setCreateForAll( Boolean aCreateForAll )
    {
      this.createForAll = new Boolean( aCreateForAll.booleanValue(  ) );
    }

    /** 
     * Gets the create for All Flag
     *
     * @return Returns True if this should be for all.
     */
    public Boolean getCreateForAll(  )
    {
      return createForAll;
    }
    

}
/*---------------------------------------------------------------------------*/