//#### Target type selection.
function SetTarget( targetType )
{
	GetE('tdTargetFrame').style.display	= ( targetType == 'popup' ? 'none' : '' ) ;
	GetE('tdPopupName').style.display	=
		GetE('tablePopupFeatures').style.display = ( targetType == 'popup' ? '' : 'none' ) ;

	switch ( targetType )
	{
		case "_blank" :
		case "_self" :
		case "_parent" :
		case "_top" :
			GetE('txtTargetFrame').value = targetType ;
			break ;
		case "" :
			GetE('txtTargetFrame').value = '' ;
			break ;
	}

	if ( targetType == 'popup' )
		window.parent.SetAutoSize( true ) ;
}

//#### Called while the user types the URL.
function OnUrlChange()
{
	var sUrl = GetE('txtUrl').value ;
	var sProtocol = oRegex.UrlOnChangeProtocol.exec( sUrl ) ;

	if ( sProtocol )
	{
		sUrl = sUrl.substr( sProtocol[0].length ) ;
		GetE('txtUrl').value = sUrl ;
		GetE('cmbLinkProtocol').value = sProtocol[0].toLowerCase() ;
	}
	else if ( oRegex.UrlOnChangeTestOther.test( sUrl ) )
	{
		GetE('cmbLinkProtocol').value = '' ;
	}
}

//#### Called while the user types the target name.
function OnTargetNameChange()
{
	var sFrame = GetE('txtTargetFrame').value ;

	if ( sFrame.length == 0 )
		GetE('cmbTarget').value = '' ;
	else if ( oRegex.ReserveTarget.test( sFrame ) )
		GetE('cmbTarget').value = sFrame.toLowerCase() ;
	else
		GetE('cmbTarget').value = 'frame' ;
}

//#### Builds the javascript URI to open a popup to the specified URI.
function BuildPopupUri( uri )
{
	var oReg = new RegExp( "'", "g" ) ;
	var sWindowName = "'" + GetE('txtPopupName').value.replace(oReg, "\\'") + "'" ;

	var sFeatures = '' ;
	var aChkFeatures = document.getElementsByName('chkFeature') ;
	for ( var i = 0 ; i < aChkFeatures.length ; i++ )
	{
		if ( i > 0 ) sFeatures += ',' ;
		sFeatures += aChkFeatures[i].value + '=' + ( aChkFeatures[i].checked ? 'yes' : 'no' ) ;
	}

	if ( GetE('txtPopupWidth').value.length > 0 )	sFeatures += ',width=' + GetE('txtPopupWidth').value ;
	if ( GetE('txtPopupHeight').value.length > 0 )	sFeatures += ',height=' + GetE('txtPopupHeight').value ;
	if ( GetE('txtPopupLeft').value.length > 0 )	sFeatures += ',left=' + GetE('txtPopupLeft').value ;
	if ( GetE('txtPopupTop').value.length > 0 )		sFeatures += ',top=' + GetE('txtPopupTop').value ;

	return ( "javascript:void(window.open('" + uri + "'," + sWindowName + ",'" + sFeatures + "'))" ) ;
}

//#### Fills all Popup related fields.
function FillPopupFields( windowName, features )
{
	if ( windowName )
		GetE('txtPopupName').value = windowName ;

	var oFeatures = new Object() ;
	var oFeaturesMatch ;
	while( ( oFeaturesMatch = oRegex.PopupFeatures.exec( features ) ) != null )
	{
		var sValue = oFeaturesMatch[2] ;
		if ( sValue == ( 'yes' || '1' ) )
			oFeatures[ oFeaturesMatch[1] ] = true ;
		else if ( ! isNaN( sValue ) && sValue != 0 )
			oFeatures[ oFeaturesMatch[1] ] = sValue ;
	}

	// Update all features check boxes.
	var aChkFeatures = document.getElementsByName('chkFeature') ;
	for ( var i = 0 ; i < aChkFeatures.length ; i++ )
	{
		if ( oFeatures[ aChkFeatures[i].value ] )
			aChkFeatures[i].checked = true ;
	}

	// Update position and size text boxes.
	if ( oFeatures['width'] )	GetE('txtPopupWidth').value		= oFeatures['width'] ;
	if ( oFeatures['height'] )	GetE('txtPopupHeight').value	= oFeatures['height'] ;
	if ( oFeatures['left'] )	GetE('txtPopupLeft').value		= oFeatures['left'] ;
	if ( oFeatures['top'] )		GetE('txtPopupTop').value		= oFeatures['top'] ;
}

//#### The OK button was hit.
function Ok()
{
	var sUri, sInnerHtml ;

	switch ( GetE('cmbLinkType').value )
	{
		case 'url' :
			sUri = GetE('txtUrl').value ;

			if ( sUri.length == 0 )
			{
				alert( FCKLang.DlnLnkMsgNoUrl ) ;
				return false ;
			}

			sUri = GetE('cmbLinkProtocol').value + sUri ;

			if( GetE('cmbTarget').value == 'popup' )
			{
				// Check the window name, according to http://www.w3.org/TR/html4/types.html#type-frame-target (IE throw erros with spaces).
				if ( /(^[^a-zA-Z])|(\s)/.test( GetE('txtPopupName').value ) )
				{
					alert( FCKLang.DlnLnkMsgInvPopName ) ;
					return false ;
				}
				
				sUri = BuildPopupUri( sUri ) ;
			}

			break ;

		case 'email' :
			sUri = GetE('txtEMailAddress').value ;

			if ( sUri.length == 0 )
			{
				alert( FCKLang.DlnLnkMsgNoEMail ) ;
				return false ;
			}

			sUri = oParser.CreateEMailUri(
				sUri,
				GetE('txtEMailSubject').value,
				GetE('txtEMailBody').value ) ;
			break ;

		case 'anchor' :
			var sAnchor = GetE('cmbAnchorName').value ;
			if ( sAnchor.length == 0 ) sAnchor = GetE('cmbAnchorId').value ;

			if ( sAnchor.length == 0 )
			{
				alert( FCKLang.DlnLnkMsgNoAnchor ) ;
				return false ;
			}

			sUri = '#' + sAnchor ;
			break ;
	}

	// No link selected, so try to create one.
	if ( !oLink )
		oLink = oEditor.FCK.CreateLink( sUri ) ;
	
	if ( oLink )
		sInnerHtml = oLink.innerHTML ;		// Save the innerHTML (IE changes it if it is like an URL).
	else
	{
		// If no selection, use the uri as the link text (by dom, 2006-05-26)

		sInnerHtml = sUri;

		// Built a better text for empty links.
		switch ( GetE('cmbLinkType').value )
		{
			// anchor: use old behavior --> return true
			case 'anchor':
				sInnerHtml = sInnerHtml.replace( /^#/, '' ) ;
				break ;

			// url: try to get path
			case 'url':
				var oLinkPathRegEx = new RegExp("//?([^?\"']+)([?].*)?$") ;
				var asLinkPath = oLinkPathRegEx.exec( sUri ) ;
				if (asLinkPath != null)
					sInnerHtml = asLinkPath[1];  // use matched path
				break ;

			// mailto: try to get email address
			case 'email':
				sInnerHtml = GetE('txtEMailAddress').value ;
				break ;
		}

		// Create a new (empty) anchor.
		oLink = oEditor.FCK.CreateElement( 'a' ) ;
	}

	oEditor.FCKUndo.SaveUndoStep() ;

	oLink.href = sUri ;
	SetAttribute( oLink, '_fcksavedurl', sUri ) ;

	oLink.innerHTML = sInnerHtml ;		// Set (or restore) the innerHTML

	// Target
	if( GetE('cmbTarget').value != 'popup' )
		SetAttribute( oLink, 'target', GetE('txtTargetFrame').value ) ;
	else
		SetAttribute( oLink, 'target', null ) ;

	// Advances Attributes
	SetAttribute( oLink, 'id'		, GetE('txtAttId').value ) ;
	SetAttribute( oLink, 'name'		, GetE('txtAttName').value ) ;		// No IE. Set but doesnt't update the outerHTML.
	SetAttribute( oLink, 'dir'		, GetE('cmbAttLangDir').value ) ;
	SetAttribute( oLink, 'lang'		, GetE('txtAttLangCode').value ) ;
	SetAttribute( oLink, 'accesskey', GetE('txtAttAccessKey').value ) ;
	SetAttribute( oLink, 'tabindex'	, ( GetE('txtAttTabIndex').value > 0 ? GetE('txtAttTabIndex').value : null ) ) ;
	SetAttribute( oLink, 'title'	, GetE('txtAttTitle').value ) ;
	SetAttribute( oLink, 'type'		, GetE('txtAttContentType').value ) ;
	SetAttribute( oLink, 'charset'	, GetE('txtAttCharSet').value ) ;

	if ( oEditor.FCKBrowserInfo.IsIE )
	{
		SetAttribute( oLink, 'className', GetE('txtAttClasses').value ) ;
		oLink.style.cssText = GetE('txtAttStyle').value ;
	}
	else
	{
		SetAttribute( oLink, 'class', GetE('txtAttClasses').value ) ;
		SetAttribute( oLink, 'style', GetE('txtAttStyle').value ) ;
	}

	// Select the link.
	oEditor.FCKSelection.SelectNode(oLink);
	
	return true ;
}

function BrowseServer()
{
	OpenFileBrowser( FCKConfig.LinkBrowserURL, FCKConfig.LinkBrowserWindowWidth, FCKConfig.LinkBrowserWindowHeight ) ;
}

function SetUrl( url )
{
	document.getElementById('txtUrl').value = url ;
	OnUrlChange() ;
	window.parent.SetSelectedTab( 'Info' ) ;
}

function OnUploadCompleted( errorNumber, fileUrl, fileName, customMsg )
{
	switch ( errorNumber )
	{
		case 0 :	// No errors
			alert( 'Your file has been successfully uploaded' ) ;
			break ;
		case 1 :	// Custom error
			alert( customMsg ) ;
			return ;
		case 101 :	// Custom warning
			alert( customMsg ) ;
			break ;
		case 201 :
			alert( 'A file with the same name is already available. The uploaded file has been renamed to "' + fileName + '"' ) ;
			break ;
		case 202 :
			alert( 'Invalid file type' ) ;
			return ;
		case 203 :
			alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
			return ;
		default :
			alert( 'Error on file upload. Error number: ' + errorNumber ) ;
			return ;
	}

	SetUrl( fileUrl ) ;
	GetE('frmUpload').reset() ;
}

var oUploadAllowedExtRegex	= new RegExp( FCKConfig.LinkUploadAllowedExtensions, 'i' ) ;
var oUploadDeniedExtRegex	= new RegExp( FCKConfig.LinkUploadDeniedExtensions, 'i' ) ;

function CheckUpload()
{
	var sFile = GetE('txtUploadFile').value ;
	
	if ( sFile.length == 0 )
	{
		alert( 'Please select a file to upload' ) ;
		return false ;
	}
	
	if ( ( FCKConfig.LinkUploadAllowedExtensions.length > 0 && !oUploadAllowedExtRegex.test( sFile ) ) ||
		( FCKConfig.LinkUploadDeniedExtensions.length > 0 && oUploadDeniedExtRegex.test( sFile ) ) )
	{
		OnUploadCompleted( 202 ) ;
		return false ;
	}
	
	return true ;
}