experiments with removing jsonp script

hoccer · Feb 24, 2011 · 0b5003e · 0b5003e
1 parent 65593e3
commit 0b5003e
Showing 1 changed file with 35 additions and 17 deletions.
diff --git a/lib/linccer.js b/lib/linccer.js
@@ -6,6 +6,8 @@ var Linccer = function(_options) {
     var isReady;
     var timerId;
 
+  	var connections;
+
   	var options = { 'server' : '' };
   	HC.extend(options, _options);
 
@@ -34,30 +36,46 @@ var Linccer = function(_options) {
       var jsonpName = 'jsonp' + Math.floor(Math.random() * 10000000001);
       var scriptURL =  "https://linccer" + options["server"] + ".hoccer.com/v3" + scriptName + "&jsonp=" + jsonpName;
       // var scriptURL = "http://127.0.0.1:9292/v3" + scriptName + "&jsonp=" + jsonpName;
-
-    	var script = document.createElement("script");
+	    var head = document.getElementsByTagName("head")[0] || document.documentElement,
+	      script = document.createElement("script");
+
     	script.setAttribute("type", "text/javascript");
     	script.setAttribute("src", scriptURL);
-
-    	document.body.appendChild(script);	
+
+      if (script.src.match(/receive.js/)) {
+        console.log('receive with', jsonpName);
+      }
+
+    	head.appendChild(script);	
 
-    	window[jsonpName] = function(data) {
-        if (callbackFunctionName !== undefined 
-          && that[callbackFunctionName] !== undefined) {
+    	window[jsonpName] = function(jsonpName, script) {
+    	  return function(data) {        
+          if (head) {
+            if (script.src.match(/receive.js/)) {
+              console.log('release script', script.src);
+            }
+            head.removeChild(script);
+          }
+
+          console.log('undefining', jsonpName);
+          window[jsonpName] = undefined;
+
+          if (callbackFunctionName !== undefined 
+            && that[callbackFunctionName] !== undefined) {
                 that[callbackFunctionName](data);
+          }
         }
-
-        window[jsonpName] = undefined;
-        document.body.removeChild(script);
-        delete script;
-      }
+      }(jsonpName, script);
 
       if (timeout !== undefined) {
-        setTimeout(function() { 
-          if (window[jsonpName] !== undefined) {
-            window[jsonpName]( { message: 'request_timeout' } );
+        setTimeout(function(name) {
+          return function() { 
+            if (window[name] !== undefined) {
+              console.log('sending request timeout', name);
+              window[name]( { message: 'request_timeout' } );
+            }
           }
-        }, timeout);
+        }(jsonpName), timeout);
       }
     }
 
@@ -133,7 +151,7 @@ var Linccer = function(_options) {
         var timeout = options['timeout'];
         delete options['timeout'];
       }
-
+            
       params = [];
       params.push('mode=' + mode);