+++ /dev/null
-/*
- * $Id: 3a9980787bb5d0fe966140b243a4a5eb6768913e $
-** pz2.js - pazpar2's javascript client library.
-*/
-
-//since explorer is flawed
-if (!window['Node']) {
- window.Node = new Object();
- Node.ELEMENT_NODE = 1;
- Node.ATTRIBUTE_NODE = 2;
- Node.TEXT_NODE = 3;
- Node.CDATA_SECTION_NODE = 4;
- Node.ENTITY_REFERENCE_NODE = 5;
- Node.ENTITY_NODE = 6;
- Node.PROCESSING_INSTRUCTION_NODE = 7;
- Node.COMMENT_NODE = 8;
- Node.DOCUMENT_NODE = 9;
- Node.DOCUMENT_TYPE_NODE = 10;
- Node.DOCUMENT_FRAGMENT_NODE = 11;
- Node.NOTATION_NODE = 12;
-}
-
-// prevent execution of more than once
-if(typeof window.pz2 == "undefined") {
-window.undefined = window.undefined;
-
-var pz2 = function ( paramArray )
-{
-
- // at least one callback required
- if ( !paramArray )
- throw new Error("Pz2.js: Array with parameters has to be supplied.");
-
- //supported pazpar2's protocol version
- this.suppProtoVer = '1';
- if (typeof paramArray.pazpar2path != "undefined")
- this.pz2String = paramArray.pazpar2path;
- else
- this.pz2String = "/pazpar2/search.pz2";
- this.useSessions = true;
-
- this.stylesheet = paramArray.detailstylesheet || null;
- //load stylesheet if required in async mode
- if( this.stylesheet ) {
- var context = this;
- var request = new pzHttpRequest( this.stylesheet );
- request.get( {}, function ( doc ) { context.xslDoc = doc; } );
- }
-
- this.errorHandler = paramArray.errorhandler || null;
- this.showResponseType = paramArray.showResponseType || "xml";
-
- // function callbacks
- this.initCallback = paramArray.oninit || null;
- this.statCallback = paramArray.onstat || null;
- this.showCallback = paramArray.onshow || null;
- this.termlistCallback = paramArray.onterm || null;
- this.recordCallback = paramArray.onrecord || null;
- this.bytargetCallback = paramArray.onbytarget || null;
- this.resetCallback = paramArray.onreset || null;
-
- // termlist keys
- this.termKeys = paramArray.termlist || "subject";
-
- // some configurational stuff
- this.keepAlive = 50000;
-
- if ( paramArray.keepAlive < this.keepAlive )
- this.keepAlive = paramArray.keepAlive;
-
- this.sessionID = null;
- this.serviceId = paramArray.serviceId || null;
- this.initStatusOK = false;
- this.pingStatusOK = false;
- this.searchStatusOK = false;
-
- // for sorting
- this.currentSort = "relevance";
-
- // where are we?
- this.currentStart = 0;
- // currentNum can be overwritten in show
- this.currentNum = 20;
-
- // last full record retrieved
- this.currRecID = null;
-
- // current query
- this.currQuery = null;
-
- //current raw record offset
- this.currRecOffset = null;
-
- //timers
- this.pingTimer = null;
- this.statTime = paramArray.stattime || 1000;
- this.statTimer = null;
- this.termTime = paramArray.termtime || 1000;
- this.termTimer = null;
- this.showTime = paramArray.showtime || 1000;
- this.showTimer = null;
- this.showFastCount = 4;
- this.bytargetTime = paramArray.bytargettime || 1000;
- this.bytargetTimer = null;
- this.recordTime = paramArray.recordtime || 500;
- this.recordTimer = null;
-
- // counters for each command and applied delay
- this.dumpFactor = 500;
- this.showCounter = 0;
- this.termCounter = 0;
- this.statCounter = 0;
- this.bytargetCounter = 0;
- this.recordCounter = 0;
-
- // active clients, updated by stat and show
- // might be an issue since bytarget will poll accordingly
- this.activeClients = 1;
-
- // if in proxy mode no need to init
- if (paramArray.usesessions != undefined) {
- this.useSessions = paramArray.usesessions;
- this.initStatusOK = true;
- }
- // else, auto init session or wait for a user init?
- if (this.useSessions && paramArray.autoInit !== false) {
- this.init(this.sessionID, this.serviceId);
- }
- // Version parameter
- this.version = paramArray.version || null;
-};
-
-pz2.prototype =
-{
- //error handler for async error throws
- throwError: function (errMsg, errCode)
- {
- var err = new Error(errMsg);
- if (errCode) err.code = errCode;
-
- if (this.errorHandler) {
- this.errorHandler(err);
- }
- else {
- throw err;
- }
- },
-
- // stop activity by clearing tiemouts
- stop: function ()
- {
- clearTimeout(this.statTimer);
- clearTimeout(this.showTimer);
- clearTimeout(this.termTimer);
- clearTimeout(this.bytargetTimer);
- },
-
- // reset status variables
- reset: function ()
- {
- if ( this.useSessions ) {
- this.sessionID = null;
- this.initStatusOK = false;
- this.pingStatusOK = false;
- clearTimeout(this.pingTimer);
- }
- this.searchStatusOK = false;
- this.stop();
-
- if ( this.resetCallback )
- this.resetCallback();
- },
-
- init: function (sessionId, serviceId)
- {
- this.reset();
-
- // session id as a param
- if (sessionId && this.useSessions ) {
- this.initStatusOK = true;
- this.sessionID = sessionId;
- this.ping();
- // old school direct pazpar2 init
- } else if (this.useSessions) {
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- var opts = {'command' : 'init'};
- if (serviceId) opts.service = serviceId;
- request.safeGet(
- opts,
- function(data) {
- if ( data.getElementsByTagName("status")[0]
- .childNodes[0].nodeValue == "OK" ) {
- if ( data.getElementsByTagName("protocol")[0]
- .childNodes[0].nodeValue
- != context.suppProtoVer )
- throw new Error(
- "Server's protocol not supported by the client"
- );
- context.initStatusOK = true;
- context.sessionID =
- data.getElementsByTagName("session")[0]
- .childNodes[0].nodeValue;
- if (data.getElementsByTagName("keepAlive").length > 0) {
- context.keepAlive = data.getElementsByTagName("keepAlive")[0].childNodes[0].nodeValue;
- }
- context.pingTimer =
- setTimeout(
- function () {
- context.ping();
- },
- context.keepAlive
- );
- if ( context.initCallback )
- context.initCallback();
- }
- else
- context.throwError('Init failed. Malformed WS resonse.',
- 110);
- }
- );
- // when through proxy no need to init
- } else {
- this.initStatusOK = true;
- }
- },
- // no need to ping explicitly
- ping: function ()
- {
- // pinging only makes sense when using pazpar2 directly
- if( !this.initStatusOK || !this.useSessions )
- throw new Error(
- 'Pz2.js: Ping not allowed (proxy mode) or session not initialized.'
- );
- var context = this;
-
- clearTimeout(context.pingTimer);
-
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- request.safeGet(
- { "command": "ping", "session": this.sessionID, "windowid" : window.name },
- function(data) {
- if ( data.getElementsByTagName("status")[0]
- .childNodes[0].nodeValue == "OK" ) {
- context.pingStatusOK = true;
- context.pingTimer =
- setTimeout(
- function () {
- context.ping();
- },
- context.keepAlive
- );
- }
- else
- context.throwError('Ping failed. Malformed WS resonse.',
- 111);
- }
- );
- },
- search: function (query, num, sort, filter, showfrom, addParamsArr)
- {
- clearTimeout(this.statTimer);
- clearTimeout(this.showTimer);
- clearTimeout(this.termTimer);
- clearTimeout(this.bytargetTimer);
-
- this.showCounter = 0;
- this.termCounter = 0;
- this.bytargetCounter = 0;
- this.statCounter = 0;
- this.activeClients = 1;
-
- // no proxy mode
- if( !this.initStatusOK )
- throw new Error('Pz2.js: session not initialized.');
-
- if( query !== undefined )
- this.currQuery = query;
- else
- throw new Error("Pz2.js: no query supplied to the search command.");
-
- if ( showfrom !== undefined )
- var start = showfrom;
- else
- var start = 0;
-
- var searchParams = {
- "command": "search",
- "query": this.currQuery,
- "session": this.sessionID,
- "windowid" : window.name
- };
-
- if( sort !== undefined ) {
- this.currentSort = sort;
- searchParams["sort"] = sort;
- }
- if (filter !== undefined)
- searchParams["filter"] = filter;
-
- // copy additional parmeters, do not overwrite
- if (addParamsArr != undefined) {
- for (var prop in addParamsArr) {
- if (!searchParams.hasOwnProperty(prop))
- searchParams[prop] = addParamsArr[prop];
- }
- }
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- request.safeGet(
- searchParams,
- function(data) {
- if ( data.getElementsByTagName("status")[0]
- .childNodes[0].nodeValue == "OK" ) {
- context.searchStatusOK = true;
- //piggyback search
- context.show(start, num, sort);
- if (context.statCallback)
- context.stat();
- if (context.termlistCallback)
- context.termlist();
- if (context.bytargetCallback)
- context.bytarget();
- }
- else
- context.throwError('Search failed. Malformed WS resonse.',
- 112);
- }
- );
- },
- stat: function()
- {
- if( !this.initStatusOK )
- throw new Error('Pz2.js: session not initialized.');
-
- // if called explicitly takes precedence
- clearTimeout(this.statTimer);
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- request.safeGet(
- { "command": "stat", "session": this.sessionID, "windowid" : window.name },
- function(data) {
- if ( data.getElementsByTagName("stat") ) {
- var activeClients =
- Number( data.getElementsByTagName("activeclients")[0]
- .childNodes[0].nodeValue );
- context.activeClients = activeClients;
-
- var stat = Element_parseChildNodes(data.documentElement);
-
- context.statCounter++;
- var delay = context.statTime
- + context.statCounter * context.dumpFactor;
-
- if ( activeClients > 0 )
- context.statTimer =
- setTimeout(
- function () {
- context.stat();
- },
- delay
- );
- context.statCallback(stat);
- }
- else
- context.throwError('Stat failed. Malformed WS resonse.',
- 113);
- }
- );
- },
- show: function(start, num, sort, query_state)
- {
- if( !this.searchStatusOK && this.useSessions )
- throw new Error(
- 'Pz2.js: show command has to be preceded with a search command.'
- );
-
- // if called explicitly takes precedence
- clearTimeout(this.showTimer);
-
- if( sort !== undefined )
- this.currentSort = sort;
- if( start !== undefined )
- this.currentStart = Number( start );
- if( num !== undefined )
- this.currentNum = Number( num );
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- var requestParameters =
- {
- "command": "show",
- "session": this.sessionID,
- "start": this.currentStart,
- "num": this.currentNum,
- "sort": this.currentSort,
- "block": 1,
- "type": this.showResponseType,
- "windowid" : window.name
- };
- if (query_state)
- requestParameters["query-state"] = query_state;
- if (this.version && this.version > 0)
- requestParameters["version"] = this.version;
- request.safeGet(
- requestParameters,
- function(data, type) {
- var show = null;
- var activeClients = 0;
- if (type === "json") {
- show = {};
- activeClients = Number(data.activeclients[0]);
- show.activeclients = activeClients;
- show.merged = Number(data.merged[0]);
- show.total = Number(data.total[0]);
- show.start = Number(data.start[0]);
- show.num = Number(data.num[0]);
- show.hits = data.hit;
- } else if (data.getElementsByTagName("status")[0]
- .childNodes[0].nodeValue == "OK") {
- // first parse the status data send along with records
- // this is strictly bound to the format
- activeClients =
- Number(data.getElementsByTagName("activeclients")[0]
- .childNodes[0].nodeValue);
- show = {
- "activeclients": activeClients,
- "merged":
- Number( data.getElementsByTagName("merged")[0]
- .childNodes[0].nodeValue ),
- "total":
- Number( data.getElementsByTagName("total")[0]
- .childNodes[0].nodeValue ),
- "start":
- Number( data.getElementsByTagName("start")[0]
- .childNodes[0].nodeValue ),
- "num":
- Number( data.getElementsByTagName("num")[0]
- .childNodes[0].nodeValue ),
- "hits": []
- };
- // parse all the first-level nodes for all <hit> tags
- var hits = data.getElementsByTagName("hit");
- for (i = 0; i < hits.length; i++)
- show.hits[i] = Element_parseChildNodes(hits[i]);
- } else {
- context.throwError('Show failed. Malformed WS resonse.',
- 114);
- };
-
- var approxNode = data.getElementsByTagName("approximation");
- if (approxNode && approxNode[0] && approxNode[0].childNodes[0] && approxNode[0].childNodes[0].nodeValue)
- show['approximation'] =
- Number( approxNode[0].childNodes[0].nodeValue);
-
-
- data.getElementsByTagName("")
- context.activeClients = activeClients;
- context.showCounter++;
- var delay = context.showTime;
- if (context.showCounter > context.showFastCount)
- delay += context.showCounter * context.dumpFactor;
- if ( activeClients > 0 )
- context.showTimer = setTimeout(
- function () {
- context.show();
- },
- delay);
- context.showCallback(show);
- }
- );
- },
- record: function(id, offset, syntax, handler)
- {
- // we may call record with no previous search if in proxy mode
- if(!this.searchStatusOK && this.useSessions)
- throw new Error(
- 'Pz2.js: record command has to be preceded with a search command.'
- );
-
- if( id !== undefined )
- this.currRecID = id;
-
- var recordParams = {
- "command": "record",
- "session": this.sessionID,
- "id": this.currRecID,
- "windowid" : window.name
- };
-
- this.currRecOffset = null;
- if (offset != undefined) {
- recordParams["offset"] = offset;
- this.currRecOffset = offset;
- }
-
- if (syntax != undefined)
- recordParams['syntax'] = syntax;
-
- //overwrite default callback id needed
- var callback = this.recordCallback;
- var args = undefined;
- if (handler != undefined) {
- callback = handler['callback'];
- args = handler['args'];
- }
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
-
- request.safeGet(
- recordParams,
- function(data) {
- var recordNode;
- var record;
- //raw record
- if (context.currRecOffset !== null) {
- record = new Array();
- record['xmlDoc'] = data;
- record['offset'] = context.currRecOffset;
- callback(record, args);
- //pz2 record
- } else if ( recordNode =
- data.getElementsByTagName("record")[0] ) {
- // if stylesheet was fetched do not parse the response
- if ( context.xslDoc ) {
- record = new Array();
- record['xmlDoc'] = data;
- record['xslDoc'] = context.xslDoc;
- record['recid'] =
- recordNode.getElementsByTagName("recid")[0]
- .firstChild.nodeValue;
- //parse record
- } else {
- record = Element_parseChildNodes(recordNode);
- }
- var activeClients =
- Number( data.getElementsByTagName("activeclients")[0]
- .childNodes[0].nodeValue );
- context.activeClients = activeClients;
- context.recordCounter++;
- var delay = context.recordTime + context.recordCounter * context.dumpFactor;
- if ( activeClients > 0 )
- context.recordTimer =
- setTimeout (
- function() {
- context.record(id, offset, syntax, handler);
- },
- delay
- );
- callback(record, args);
- }
- else
- context.throwError('Record failed. Malformed WS resonse.',
- 115);
- }
- );
- },
-
- termlist: function()
- {
- if( !this.searchStatusOK && this.useSessions )
- throw new Error(
- 'Pz2.js: termlist command has to be preceded with a search command.'
- );
-
- // if called explicitly takes precedence
- clearTimeout(this.termTimer);
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- request.safeGet(
- {
- "command": "termlist",
- "session": this.sessionID,
- "name": this.termKeys,
- "windowid" : window.name,
- "version" : this.version
-
- },
- function(data) {
- if ( data.getElementsByTagName("termlist") ) {
- var activeClients =
- Number( data.getElementsByTagName("activeclients")[0]
- .childNodes[0].nodeValue );
- context.activeClients = activeClients;
- var termList = { "activeclients": activeClients };
- var termLists = data.getElementsByTagName("list");
- //for each termlist
- for (i = 0; i < termLists.length; i++) {
- var listName = termLists[i].getAttribute('name');
- termList[listName] = new Array();
- var terms = termLists[i].getElementsByTagName('term');
- //for each term in the list
- for (j = 0; j < terms.length; j++) {
- var term = {
- "name":
- (terms[j].getElementsByTagName("name")[0]
- .childNodes.length
- ? terms[j].getElementsByTagName("name")[0]
- .childNodes[0].nodeValue
- : 'ERROR'),
- "freq":
- terms[j]
- .getElementsByTagName("frequency")[0]
- .childNodes[0].nodeValue || 'ERROR'
- };
-
- // Only for xtargets: id, records, filtered
- var termIdNode =
- terms[j].getElementsByTagName("id");
- if(terms[j].getElementsByTagName("id").length)
- term["id"] =
- termIdNode[0].childNodes[0].nodeValue;
- termList[listName][j] = term;
-
- var recordsNode = terms[j].getElementsByTagName("records");
- if (recordsNode && recordsNode.length)
- term["records"] = recordsNode[0].childNodes[0].nodeValue;
-
- var filteredNode = terms[j].getElementsByTagName("filtered");
- if (filteredNode && filteredNode.length)
- term["filtered"] = filteredNode[0].childNodes[0].nodeValue;
-
- }
- }
-
- context.termCounter++;
- var delay = context.termTime
- + context.termCounter * context.dumpFactor;
- if ( activeClients > 0 )
- context.termTimer =
- setTimeout(
- function () {
- context.termlist();
- },
- delay
- );
-
- context.termlistCallback(termList);
- }
- else
- context.throwError('Termlist failed. Malformed WS resonse.',
- 116);
- }
- );
-
- },
- bytarget: function()
- {
- if( !this.initStatusOK && this.useSessions )
- throw new Error(
- 'Pz2.js: bytarget command has to be preceded with a search command.'
- );
-
- // no need to continue
- if( !this.searchStatusOK )
- return;
-
- // if called explicitly takes precedence
- clearTimeout(this.bytargetTimer);
-
- var context = this;
- var request = new pzHttpRequest(this.pz2String, this.errorHandler);
- request.safeGet(
- {
- "command": "bytarget",
- "session": this.sessionID,
- "block": 1,
- "windowid" : window.name,
- "version" : this.version
- },
- function(data) {
- if ( data.getElementsByTagName("status")[0]
- .childNodes[0].nodeValue == "OK" ) {
- var targetNodes = data.getElementsByTagName("target");
- var bytarget = new Array();
- for ( i = 0; i < targetNodes.length; i++) {
- bytarget[i] = new Array();
- for( j = 0; j < targetNodes[i].childNodes.length; j++ ) {
- if ( targetNodes[i].childNodes[j].nodeType
- == Node.ELEMENT_NODE ) {
- var nodeName =
- targetNodes[i].childNodes[j].nodeName;
- if (targetNodes[i].childNodes[j].firstChild != null)
- {
- var nodeText = targetNodes[i].childNodes[j]
- .firstChild.nodeValue;
- bytarget[i][nodeName] = nodeText;
- }
- else {
- bytarget[i][nodeName] = "";
- }
-
-
- }
- }
- if (bytarget[i]["state"]=="Client_Disconnected") {
- bytarget[i]["hits"] = "Error";
- } else if (bytarget[i]["state"]=="Client_Error") {
- bytarget[i]["hits"] = "Error";
- } else if (bytarget[i]["state"]=="Client_Working") {
- bytarget[i]["hits"] = "...";
- }
- if (bytarget[i].diagnostic == "1") {
- bytarget[i].diagnostic = "Permanent system error";
- } else if (bytarget[i].diagnostic == "2") {
- bytarget[i].diagnostic = "Temporary system error";
- }
- var targetsSuggestions = targetNodes[i].getElementsByTagName("suggestions");
- if (targetsSuggestions != undefined && targetsSuggestions.length>0) {
- var suggestions = targetsSuggestions[0];
- bytarget[i]["suggestions"] = Element_parseChildNodes(suggestions);
- }
- }
-
- context.bytargetCounter++;
- var delay = context.bytargetTime
- + context.bytargetCounter * context.dumpFactor;
- if ( context.activeClients > 0 )
- context.bytargetTimer =
- setTimeout(
- function () {
- context.bytarget();
- },
- delay
- );
-
- context.bytargetCallback(bytarget);
- }
- else
- context.throwError('Bytarget failed. Malformed WS resonse.',
- 117);
- }
- );
- },
-
- // just for testing, probably shouldn't be here
- showNext: function(page)
- {
- var step = page || 1;
- this.show( ( step * this.currentNum ) + this.currentStart );
- },
-
- showPrev: function(page)
- {
- if (this.currentStart == 0 )
- return false;
- var step = page || 1;
- var newStart = this.currentStart - (step * this.currentNum );
- this.show( newStart > 0 ? newStart : 0 );
- },
-
- showPage: function(pageNum)
- {
- //var page = pageNum || 1;
- this.show(pageNum * this.currentNum);
- }
-};
-
-/*
-********************************************************************************
-** AJAX HELPER CLASS ***********************************************************
-********************************************************************************
-*/
-var pzHttpRequest = function ( url, errorHandler ) {
- this.maxUrlLength = 2048;
- this.request = null;
- this.url = url;
- this.errorHandler = errorHandler || null;
- this.async = true;
- this.requestHeaders = {};
-
- if ( window.XMLHttpRequest ) {
- this.request = new XMLHttpRequest();
- } else if ( window.ActiveXObject ) {
- try {
- this.request = new ActiveXObject( 'Msxml2.XMLHTTP' );
- } catch (err) {
- this.request = new ActiveXObject( 'Microsoft.XMLHTTP' );
- }
- }
-};
-
-
-pzHttpRequest.prototype =
-{
- safeGet: function ( params, callback )
- {
- var encodedParams = this.encodeParams(params);
- var url = this._urlAppendParams(encodedParams);
- if (url.length >= this.maxUrlLength) {
- this.requestHeaders["Content-Type"]
- = "application/x-www-form-urlencoded";
- this._send( 'POST', this.url, encodedParams, callback );
- } else {
- this._send( 'GET', url, '', callback );
- }
- },
-
- get: function ( params, callback )
- {
- this._send( 'GET', this._urlAppendParams(this.encodeParams(params)),
- '', callback );
- },
-
- post: function ( params, data, callback )
- {
- this._send( 'POST', this._urlAppendParams(this.encodeParams(params)),
- data, callback );
- },
-
- load: function ()
- {
- this.async = false;
- this.request.open( 'GET', this.url, this.async );
- this.request.send('');
- if ( this.request.status == 200 )
- return this.request.responseXML;
- },
-
- encodeParams: function (params)
- {
- var sep = "";
- var encoded = "";
- for (var key in params) {
- if (params[key] != null) {
- encoded += sep + key + '=' + encodeURIComponent(params[key]);
- sep = '&';
- }
- }
- return encoded;
- },
-
- _send: function ( type, url, data, callback)
- {
- var context = this;
- this.callback = callback;
- this.async = true;
- this.request.open( type, url, this.async );
- for (var key in this.requestHeaders)
- this.request.setRequestHeader(key, this.requestHeaders[key]);
- this.request.onreadystatechange = function () {
- context._handleResponse(url); /// url used ONLY for error reporting
- }
- this.request.send(data);
- },
-
- _urlAppendParams: function (encodedParams)
- {
- if (encodedParams)
- return this.url + "?" + encodedParams;
- else
- return this.url;
- },
-
- _handleResponse: function (savedUrlForErrorReporting)
- {
- if ( this.request.readyState == 4 ) {
- // pick up appplication errors first
- var errNode = null;
- if (this.request.responseXML &&
- (errNode = this.request.responseXML.documentElement)
- && errNode.nodeName == 'error') {
- var errMsg = errNode.getAttribute("msg");
- var errCode = errNode.getAttribute("code");
- var errAddInfo = '';
- if (errNode.childNodes.length)
- errAddInfo = ': ' + errNode.childNodes[0].nodeValue;
-
- var err = new Error(errMsg + errAddInfo);
- err.code = errCode;
-
- if (this.errorHandler) {
- this.errorHandler(err);
- }
- else {
- throw err;
- }
- } else if (this.request.status == 200 &&
- this.request.responseXML == null) {
- if (this.request.responseText != null) {
- //assume JSON
-
- var json = null;
- var text = this.request.responseText;
- if (typeof window.JSON == "undefined")
- json = eval("(" + text + ")");
- else {
- try {
- json = JSON.parse(text);
- }
- catch (e) {
- // Safari: eval will fail as well. Considering trying JSON2 (non-native implementation) instead
- /* DEBUG only works in mk2-mobile
- if (document.getElementById("log"))
- document.getElementById("log").innerHTML = "" + e + " " + length + ": " + text;
- */
- try {
- json = eval("(" + text + ")");
- }
- catch (e) {
- /* DEBUG only works in mk2-mobile
- if (document.getElementById("log"))
- document.getElementById("log").innerHTML = "" + e + " " + length + ": " + text;
- */
- }
- }
- }
- this.callback(json, "json");
- } else {
- var err = new Error("XML response is empty but no error " +
- "for " + savedUrlForErrorReporting);
- err.code = -1;
- if (this.errorHandler) {
- this.errorHandler(err);
- } else {
- throw err;
- }
- }
- } else if (this.request.status == 200) {
- this.callback(this.request.responseXML);
- } else {
- var err = new Error("HTTP response not OK: "
- + this.request.status + " - "
- + this.request.statusText );
- err.code = '00' + this.request.status;
- if (this.errorHandler) {
- this.errorHandler(err);
- }
- else {
- throw err;
- }
- }
- }
- }
-};
-
-/*
-********************************************************************************
-** XML HELPER FUNCTIONS ********************************************************
-********************************************************************************
-*/
-
-// DOMDocument
-
-if ( window.ActiveXObject) {
- var DOMDoc = document;
-} else {
- var DOMDoc = Document.prototype;
-}
-
-DOMDoc.newXmlDoc = function ( root )
-{
- var doc;
-
- if (document.implementation && document.implementation.createDocument) {
- doc = document.implementation.createDocument('', root, null);
- } else if ( window.ActiveXObject ) {
- doc = new ActiveXObject("MSXML2.DOMDocument");
- doc.loadXML('<' + root + '/>');
- } else {
- throw new Error ('No XML support in this browser');
- }
-
- return doc;
-}
-
-
-DOMDoc.parseXmlFromString = function ( xmlString )
-{
- var doc;
-
- if ( window.DOMParser ) {
- var parser = new DOMParser();
- doc = parser.parseFromString( xmlString, "text/xml");
- } else if ( window.ActiveXObject ) {
- doc = new ActiveXObject("MSXML2.DOMDocument");
- doc.loadXML( xmlString );
- } else {
- throw new Error ("No XML parsing support in this browser.");
- }
-
- return doc;
-}
-
-DOMDoc.transformToDoc = function (xmlDoc, xslDoc)
-{
- if ( window.XSLTProcessor ) {
- var proc = new XSLTProcessor();
- proc.importStylesheet( xslDoc );
- return proc.transformToDocument(xmlDoc);
- } else if ( window.ActiveXObject ) {
- return document.parseXmlFromString(xmlDoc.transformNode(xslDoc));
- } else {
- alert( 'Unable to perform XSLT transformation in this browser' );
- }
-}
-
-// DOMElement
-
-Element_removeFromDoc = function (DOM_Element)
-{
- DOM_Element.parentNode.removeChild(DOM_Element);
-}
-
-Element_emptyChildren = function (DOM_Element)
-{
- while( DOM_Element.firstChild ) {
- DOM_Element.removeChild( DOM_Element.firstChild )
- }
-}
-
-Element_appendTransformResult = function ( DOM_Element, xmlDoc, xslDoc )
-{
- if ( window.XSLTProcessor ) {
- var proc = new XSLTProcessor();
- proc.importStylesheet( xslDoc );
- var docFrag = false;
- docFrag = proc.transformToFragment( xmlDoc, DOM_Element.ownerDocument );
- DOM_Element.appendChild(docFrag);
- } else if ( window.ActiveXObject ) {
- DOM_Element.innerHTML = xmlDoc.transformNode( xslDoc );
- } else {
- alert( 'Unable to perform XSLT transformation in this browser' );
- }
-}
-
-Element_appendTextNode = function (DOM_Element, tagName, textContent )
-{
- var node = DOM_Element.ownerDocument.createElement(tagName);
- var text = DOM_Element.ownerDocument.createTextNode(textContent);
-
- DOM_Element.appendChild(node);
- node.appendChild(text);
-
- return node;
-}
-
-Element_setTextContent = function ( DOM_Element, textContent )
-{
- if (typeof DOM_Element.textContent !== "undefined") {
- DOM_Element.textContent = textContent;
- } else if (typeof DOM_Element.innerText !== "undefined" ) {
- DOM_Element.innerText = textContent;
- } else {
- throw new Error("Cannot set text content of the node, no such method.");
- }
-}
-
-Element_getTextContent = function (DOM_Element)
-{
- if ( typeof DOM_Element.textContent != 'undefined' ) {
- return DOM_Element.textContent;
- } else if (typeof DOM_Element.text != 'undefined') {
- return DOM_Element.text;
- } else {
- throw new Error("Cannot get text content of the node, no such method.");
- }
-}
-
-Element_parseChildNodes = function (node)
-{
- var parsed = {};
- var hasChildElems = false;
- var textContent = '';
-
- if (node.hasChildNodes()) {
- var children = node.childNodes;
- for (var i = 0; i < children.length; i++) {
- var child = children[i];
- switch (child.nodeType) {
- case Node.ELEMENT_NODE:
- hasChildElems = true;
- var nodeName = child.nodeName;
- if (!(nodeName in parsed))
- parsed[nodeName] = [];
- parsed[nodeName].push(Element_parseChildNodes(child));
- break;
- case Node.TEXT_NODE:
- textContent += child.nodeValue;
- break;
- case Node.CDATA_SECTION_NODE:
- textContent += child.nodeValue;
- break;
- }
- }
- }
-
- var attrs = node.attributes;
- for (var i = 0; i < attrs.length; i++) {
- hasChildElems = true;
- var attrName = '@' + attrs[i].nodeName;
- var attrValue = attrs[i].nodeValue;
- parsed[attrName] = attrValue;
- }
-
- // if no nested elements/attrs set value to text
- if (hasChildElems)
- parsed['#text'] = textContent;
- else
- parsed = textContent;
-
- return parsed;
-}
-
-/* do not remove trailing bracket */
-}
projects / mkws-moved-to-github.git / commitdiff