source: trunk/admin/inc/FCKeditor/editor/dialog/fck_select/fck_select.js@ 2

/*
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 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/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: fck_select.js
 *      Scripts for the fck_select.html page.
 * 
 * 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.length - 1 ) )
                iFinalIndex = combo.options.length - 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 ;
}