ckeditor/_source/plugins/forms/dialogs/select.js

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/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
CKEDITOR.dialog.add( 'select', function( editor )
{
	// Add a new option to a SELECT object (combo or list).
	function addOption( combo, optionText, optionValue, documentObject, index )
	{
		combo = getSelect( combo );
		var oOption;
		if ( documentObject )
			oOption = documentObject.createElement( "OPTION" );
		else
			oOption = document.createElement( "OPTION" );

		if ( combo && oOption && oOption.getName() == 'option' )
		{
			if ( CKEDITOR.env.ie ) {
				if ( !isNaN( parseInt( index, 10) ) )
					combo.$.options.add( oOption.$, index );
				else
					combo.$.options.add( oOption.$ );

				oOption.$.innerHTML = optionText.length > 0 ? optionText : '';
				oOption.$.value     = optionValue;
			}
			else
			{
				if ( index !== null && index < combo.getChildCount() )
					combo.getChild( index < 0 ? 0 : index ).insertBeforeMe( oOption );
				else
					combo.append( oOption );

				oOption.setText( optionText.length > 0 ? optionText : '' );
				oOption.setValue( optionValue );
			}
		}
		else
			return false;

		return oOption;
	}
	// Remove all selected options from a SELECT object.
	function removeSelectedOptions( combo )
	{
		combo = getSelect( combo );

		// Save the selected index
		var iSelectedIndex = getSelectedIndex( combo );

		// Remove all selected options.
		for ( var i = combo.getChildren().count() - 1 ; i >= 0 ; i-- )
		{
			if ( combo.getChild( i ).$.selected )
				combo.getChild( i ).remove();
		}

		// Reset the selection based on the original selected index.
		setSelectedIndex( combo, iSelectedIndex );