otsdaq_doc_library.js

// ==============================
//
// Note: this code is the main javascript library for the otsdaq online documentation
//
//  created by rrivera at fnal dot gov, May 2019
// ==============================


var ots = ots || {}; //define ots namespace

ots.otsdaqFeatures_ = {};

ots.initFeatures = function()
{
    console.log("ots.initFeatures()");
    
    ots.HttpRequest("../contentData/otsdaq_features.json","",
            function(req)
            {
        console.log("Request text",req.responseText);
        ots.otsdaqFeatures_ = JSON.parse(req.responseText);
        console.log("json features",ots.otsdaqFeatures_);
        
        //jumpe to anchor in url.. now that it is not iframe
        var anchori = window.location.href.indexOf('#');
        if(anchori > 0)
            location.href = window.location.href.substr(anchori);
            
            });
}

window.addEventListener("load",ots.initFeatures);



//=====================================================================================
//ots.HttpRequest ~~
// forms request properly for ots server, POSTs data
// and when request is returned, returnHandler is called with 
// req result on success, if failure do to bad url called with 0
//
// reqIndex is used to give the returnHandler an index to route responses to.
//
ots.HttpRequest = function(requestURL, data, returnHandler, reqIndex) {

    var errStr = "";            
    var req = new XMLHttpRequest();
    
    req.onreadystatechange = function() {
        if (req.readyState==4) {  //when readyState=4 return complete, status=200 for success, status=400 for fail
            if(req.status==200)
            {
                //response received                 
                console.log("Request Response Text " + req.responseText);
            }
            else 
            {
                //response failure

                console.log("Request Failed!");
            }           

            if(returnHandler) returnHandler(req,reqIndex,errStr);
        }
    }
    
    //requestURL = "/urn:xdaq-application:lid="+urnLid+"/"+requestURL;
    //Debug.log("Post " + requestURL + "\n\tData: " + data);
    req.open("POST",requestURL,true);
    //req.setRequestHeader("Content-type","application/x-www-form-urlencoded");
    req.setRequestHeader("Content-Type", "text/plain;charset=UTF-8");
    req.send(data); 
} //end ots.HttpRequest()