source: trunk/instant_messenger/js/xtools.js @ 305

(function()
{
        var _FILES = [];

        function _convert(pString)
        {
                if ( typeof pString != 'string' )
                        return false;

                if ( window.ActiveXObject )
                {
                        var _xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
                        _xmlDoc.async = "false";
                        _xmlDoc.loadXML(pString);
                }
                else
                {
                        var parser = new DOMParser();
                        var _xmlDoc = parser.parseFromString(pString, "text/xml");
                }

                return _xmlDoc;
        }

        function _load(pFile)
        {
                pFile = this._PATH + 'xsl/' + pFile;
                if ( !(_FILES[pFile]) )
                {
                        var _data = null;
                        if ( document.implementation.createDocument )
                                _data = document.implementation.createDocument("", "", null);
                        else
                                _data = new ActiveXObject("Msxml2.FreeThreadedDOMDocument");

                        _data.async = false;
                        _data.load(pFile + '?' + Date.parse(new Date));
                        _FILES[pFile] = _data;
                }
                return _FILES[pFile];
        }

        function _parse()
        {
                if ( arguments.length == 1 )
                {
                        pXML = _xml('root');
                        pXSL = arguments[0];
                }
                else
                {
                        pXML = arguments[0];
                        pXSL = arguments[1];
                }
                switch ( typeof pXML )
                {
                        case 'object' :
                        break;
                        case 'string' :
                                if ( pXML.indexOf('<') == 0 )
                                        pXML = _convert(pXML);
                                else
                                        pXML = _load.call(this, pXML);
                        break;
                        default :
                                return {'error':'invalid xml'}
                }
                switch ( typeof pXSL )
                {
                        case 'object' :
                        break;
                        case 'string' :
                                pXSL = _load.call(this, pXSL);
                        break;
                        default :
                                return {'error':'invalid xsl'}
                }

                var fragment = null;
                if ( window.XSLTProcessor )
                {
                        var xslProc = new XSLTProcessor();
                        xslProc.importStylesheet(pXSL);

                        if ( (arguments.length == 3) && (typeof arguments[2] == 'object') )
                        {
                                var params = arguments[2];
                                for (var i in params )
                                         xslProc.setParameter(null, i, params[i]);
                        }

                        fragment = xslProc.transformToFragment(pXML, document);

                        // para retornar valor igual ao ie.
                        var aux = document.createElement("div");
                        aux.appendChild(fragment);
                        fragment = aux.innerHTML;
                }
                else
                {
                        var xslTemplate = new ActiveXObject("MSXML2.XSLTemplate");
                        xslTemplate.stylesheet = pXSL;

                        var xslProc = xslTemplate.createProcessor();
                        xslProc.input = pXML;

                        if ( (arguments.length == 3) && (typeof arguments[2] == 'object') )
                        {
                                var params = arguments[2];
                                for (var i in params )
                                         xslProc.addParameter(i, params[i], '');
                        }

                        xslProc.transform();
                        fragment = xslProc.output;
                }
                return fragment;
        }

        function _xml()
        {
                var a = false;
                if ( document.implementation.createDocument )
                        a = document.implementation.createDocument("", "", null);
                else if ( ActiveXObject )
                        a = new ActiveXObject("Msxml2.DOMDocument");

                if ( arguments.length == 1 && typeof arguments[0] == 'string' )
                        a.appendChild(a.createElement(arguments[0]));
                //with ( a )
                //      appendChild(createProcessingInstruction("xml", "version='1.0'"));

                return a;
        }

        function XTools()
        {
                var _argv = arguments;
                this._PATH = ( _argv.length > 0 ) ?
                        _argv[0] : '';
                if ( this._PATH != '' && this._PATH.lastIndexOf('/') != (this._PATH.length - 1) )
                        this._PATH += '/';
        }

        XTools.prototype.convert = _convert;
        XTools.prototype.load = _load;
        XTools.prototype.parse = _parse;
        XTools.prototype.xml = _xml;
        window.XTools = XTools;
}
)();