Adding control panel sample HTML5 UI

Change-Id: Id7cb7e3f1a817000c9054139922bdf9e3e21a0a8
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 197 insertions, 0 deletions

diff --git a/htdocs/AudioBinding.js b/htdocs/AudioBinding.js
new file mode 100644
index 0000000..4d14600
--- /dev/null
+++ b/htdocs/AudioBinding.js
@@ -0,0 +1,197 @@
+    var afb = new AFB("api", "mysecret");
+    var ws;
+    var sndcard="HALNotSelected";
+    var evtidx=0;
+    var numid=0;
+
+    function syntaxHighlight(json) {
+        if (typeof json !== 'string') {
+             json = JSON.stringify(json, undefined, 2);
+        }
+        json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+        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="0";
+
+
+    
+
+    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);
+    }
+
+
+    // Retreive Select value and Text from the binder
+    // Note: selection of value/text for a given context is huggly!!!
+    function querySelectList (elemid, api, verb, query) {
+        
+        console.log("querySelectList elemid=%s api=%s verb=%s query=%s", elemid, api, verb, query);
+        
+        var selectobj = document.getElementById(elemid);
+        if (!selectobj) {
+            return;
+        }
+        
+        // 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;
+        }
+                
+        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);
+    }
+    
+    function refresh_list (self, api, verb, query) {
+        console.log("refresh_list id=%s api=%s verb=%s query=%s", self.id, api, verb, query);
+  
+        if (self.value > 0) return;       
+  
+        // onlick update selected HAL api
+        self.onclick=function(){
+           numid = parseInt(self.value); 
+           console.log ("Default numid=%d", numid);           
+        };
+
+        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
+                opt.text   = response[idx].name + ' id=' + response[idx].id;
+                opt.value  = response[idx].id;
+               
+                self.appendChild(opt);
+            }               
+            self.selectedIndex=2;
+            numid = parseInt (self.value); 
+        }
+                
+        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);
+    }
+    
+        
+    function init(elemid, api, verb, query) {
+        
+        function onopen() {
+                // check for active HALs
+                querySelectList (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);
+    }