/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2004 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 * http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 * http://www.fckeditor.net/
 * 
 * File Name: fck_select.js
 * Scripts for the fck_select.html page.
 * 
 * Version:  2.0 RC3
 * Modified: 2005-02-10 17:53:50
 * 
 * File Authors:
 * Frederico Caldeira Knabben (fredck@fckeditor.net)
 */

function Select( combo )
{
var iIndex = combo.selectedIndex ;

oListText.selectedIndex= iIndex ;
oListValue.selectedIndex= iIndex ;

var oTxtText= document.getElementById( "txtText" ) ;
var oTxtValue= document.getElementById( "txtValue" ) ;

oTxtText.value= oListText.value ;
oTxtValue.value= oListValue.value ;
}

function Add()
{
var oTxtText= document.getElementById( "txtText" ) ;
var oTxtValue= document.getElementById( "txtValue" ) ;

AddComboOption( oListText, oTxtText.value, oTxtText.value ) ;
AddComboOption( oListValue, oTxtValue.value, oTxtValue.value ) ;

oListText.selectedIndex = oListText.options.length - 1 ;
oListValue.selectedIndex = oListValue.options.length - 1 ;

oTxtText.value= '' ;
oTxtValue.value= '' ;

oTxtText.focus() ;
}

function Modify()
{
var iIndex = oListText.selectedIndex ;

if ( iIndex < 0 ) return ;

var oTxtText= document.getElementById( "txtText" ) ;
var oTxtValue= document.getElementById( "txtValue" ) ;

oListText.options[ iIndex ].innerHTML= oTxtText.value ;
oListText.options[ iIndex ].value= oTxtText.value ;

oListValue.options[ iIndex ].innerHTML= oTxtValue.value ;
oListValue.options[ iIndex ].value= oTxtValue.value ;

oTxtText.value= '' ;
oTxtValue.value= '' ;

oTxtText.focus() ;
}

function Move( steps )
{
ChangeOptionPosition( oListText, steps ) ;
ChangeOptionPosition( oListValue, steps ) ;
}

function Delete()
{
RemoveSelectedOptions( oListText ) ;
RemoveSelectedOptions( oListValue ) ;
}

function SetSelectedValue()
{
var iIndex = oListValue.selectedIndex ;
if ( iIndex < 0 ) return ;

var oTxtValue = document.getElementById( "txtSelValue" ) ;

oTxtValue.value = oListValue.options[ iIndex ].value ;
}

// Moves the selected option by a number of steps (also negative)
function ChangeOptionPosition( combo, steps )
{
var iActualIndex = combo.selectedIndex ;

if ( iActualIndex < 0 )
return ;

var iFinalIndex = iActualIndex + steps ;

if ( iFinalIndex < 0 )
iFinalIndex = 0 ;

if ( iFinalIndex > ( combo.options.lenght - 1 ) )
iFinalIndex = combo.options.lenght - 1 ;

if ( iActualIndex == iFinalIndex )
return ;

var oOption = combo.options[ iActualIndex ] ;
var sText= oOption.innerHTML ;
var sValue= oOption.value ;

combo.remove( iActualIndex ) ;

oOption = AddComboOption( combo, sText, sValue, null, iFinalIndex ) ;

oOption.selected = true ;
}

// Remove all selected options from a SELECT object
function RemoveSelectedOptions(combo)
{
// Save the selected index
var iSelectedIndex = combo.selectedIndex ;

var oOptions = combo.options ;

// Remove all selected options
for ( var i = oOptions.length - 1 ; i >= 0 ; i-- )
{
if (oOptions[i].selected) combo.remove(i) ;
}

// Reset the selection based on the original selected index
if ( combo.options.length > 0 )
{
if ( iSelectedIndex >= combo.options.length ) iSelectedIndex = combo.options.length - 1 ;
combo.selectedIndex = iSelectedIndex ;
}
}

// Add a new option to a SELECT object (combo or list)
function AddComboOption( combo, optionText, optionValue, documentObject, index )
{
var oOption ;

if ( documentObject )
oOption = documentObject.createElement("OPTION") ;
else
oOption = document.createElement("OPTION") ;

if ( index != null )
combo.options.add( oOption, index ) ;
else
combo.options.add( oOption ) ;

oOption.innerHTML = optionText.length > 0 ? optionText : '&nbsp;' ;
oOption.value     = optionValue ;

return oOption ;
}
