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var afb = new AFB("api", "mysecret");
var ws;
var sndcard="HALNotSelected";
var evtidx=0;
function syntaxHighlight(json) {
if (typeof json !== 'string') {
json = JSON.stringify(json, undefined, 2);
}
json = json.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
} else if (/null/.test(match)) {
cls = 'null';
}
return '<span class="' + cls + '">' + match + '</span>';
});
}
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 mode=getParameterByName("mode");
if (!mode) mode="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: "+ syntaxHighlight(obj);
}
function replyerr(obj) {
console.log("replyerr:" + JSON.stringify(obj));
document.getElementById("output").innerHTML = "ERROR: "+ syntaxHighlight(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);
var question = urlws +"/" +api +"/" +verb + "?query=" + JSON.stringify(query);
document.getElementById("question").innerHTML = syntaxHighlight(question);
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(){
sndcard= this.value;
console.log ("Default Selection=" + sndcard);
};
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++) {
var opt = document.createElement('option');
// Alsa LowLevel selection mode
if (response[idx].name) opt.text = response[idx].name;
if (response[idx].devid) opt.value = response[idx].devid;
// HAL selection mode
if (response[idx].shortname) opt.text = response[idx].shortname;
if (response[idx].api) opt.value = response[idx].api;
selectobj.appendChild(opt);
}
sndcard= selectobj.value;
}
console.log ("subscribe api="+api+" verb="+verb+" query=" +query);
var question = urlws +"/"+api +"/" +verb + "?query=" + JSON.stringify(query);
document.getElementById("question").innerHTML = syntaxHighlight(question);
// request lowlevel ALSA to get API list
ws.call(api+"/"+verb, query).then(gotit, replyerr);
}
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