Subversion-Projekte lars-tiefland.webanos.zeldi.de

// Ajax mode: abort
// usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
// if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort()

var pendingRequests = {},
        ajax;

// Use a prefilter if available (1.5+)
if ( $.ajaxPrefilter ) {
        $.ajaxPrefilter( function( settings, _, xhr ) {
                var port = settings.port;
                if ( settings.mode === "abort" ) {
                        if ( pendingRequests[ port ] ) {
                                pendingRequests[ port ].abort();
                        }
                        pendingRequests[ port ] = xhr;
                }
        } );
} else {

        // Proxy ajax
        ajax = $.ajax;
        $.ajax = function( settings ) {
                var mode = ( "mode" in settings ? settings : $.ajaxSettings ).mode,
                        port = ( "port" in settings ? settings : $.ajaxSettings ).port;
                if ( mode === "abort" ) {
                        if ( pendingRequests[ port ] ) {
                                pendingRequests[ port ].abort();
                        }
                        pendingRequests[ port ] = ajax.apply( this, arguments );
                        return pendingRequests[ port ];
                }
                return ajax.apply( this, arguments );
        };
}