var afb = new AFB("api", "mysecret"); var ws; var halapi="HALNotSelected"; var evtidx=0; function getParameterByName(name, url) { if (!url) { url = window.location.href; } name = name.replace(/[\[\]]/g, "\\$&"); var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"), results = regex.exec(url); if (!results) return null; if (!results[2]) return ''; return decodeURIComponent(results[2].replace(/\+/g, " ")); } // default soundcard is "PCH" var devid=getParameterByName("devid"); if (!devid) devid="hw:1"; var haldev=getParameterByName("haldev"); if (!haldev) haldev="scarlett-usb"; var sndname=getParameterByName("sndname"); if (!sndname) sndname="PCH"; var quiet=getParameterByName("quiet"); if (!quiet) quiet="99"; function init(elemid, api, verb, query) { function onopen() { // check for active HALs probeActiveHal (elemid, api, verb, query); document.getElementById("main").style.visibility = "visible"; document.getElementById("connected").innerHTML = "Binder WS Active"; document.getElementById("connected").style.background = "lightgreen"; ws.onevent("*", gotevent); } function onabort() { document.getElementById("main").style.visibility = "hidden"; document.getElementById("connected").innerHTML = "Connected Closed"; document.getElementById("connected").style.background = "red"; } ws = new afb.ws(onopen, onabort); } function replyok(obj) { console.log("replyok:" + JSON.stringify(obj)); document.getElementById("output").innerHTML = "OK: "+JSON.stringify(obj); } function replyerr(obj) { console.log("replyerr:" + JSON.stringify(obj)); document.getElementById("output").innerHTML = "ERROR: "+JSON.stringify(obj); } function gotevent(obj) { console.log("gotevent:" + JSON.stringify(obj)); document.getElementById("outevt").innerHTML = (evtidx++) +": "+JSON.stringify(obj); } function send(message) { var api = document.getElementById("api").value; var verb = document.getElementById("verb").value; document.getElementById("question").innerHTML = "subscribe: "+api+"/"+verb + " (" + JSON.stringify(message) +")"; ws.call(api+"/"+verb, {data:message}).then(replyok, replyerr); } // On button click from HTML page function callbinder(api, verb, query) { console.log ("subscribe api="+api+" verb="+verb+" query=" +query); document.getElementById("question").innerHTML = "apicall: " + api+"/"+verb +" ("+ JSON.stringify(query)+")"; ws.call(api+"/"+verb, query).then(replyok, replyerr); } // Retrieve the list of active HAL function probeActiveHal (elemid, api, verb, query) { var selectobj = document.getElementById(elemid); // onlick update selected HAL api selectobj.onclick=function(){ halapi= this.value; console.log ("New Default HAL=" + halapi); }; function gotit (result) { // display response as for normal onclick action replyok(result); var response=result.response; // fulfill select with avaliable active HAL for (idx=0; idx<response.length; idx++) { console.log ("probeActiveHal =" + response[idx].shortname); var opt = document.createElement('option'); opt.value = response[idx].api; opt.text = response[idx].shortname; selectobj.appendChild(opt); } halapi= selectobj.value; } // request lowlevel ALSA to get API list ws.call(api+"/"+verb, query).then(gotit, replyerr); }