1 files changed, 69 insertions, 0 deletions
diff --git a/src/Server.js b/src/Server.js
new file mode 100644
index 00000000..94b0cc10
--- /dev/null
+++ b/src/Server.js
@@ -0,0 +1,69 @@
+// Copyright (C) 2008,2009 BRAT Tech LLC
+
+nglr.Server = function(url, getScript) {
+  this.url = url;
+  this.nextId = 0;
+  this.getScript = getScript;
+  this.uuid = "_" + ("" + Math.random()).substr(2) + "_";
+  this.maxSize = 1800;
+};
+
+nglr.Server.prototype.base64url = function(txt) {
+  return Base64.encode(txt);
+};
+
+nglr.Server.prototype.request = function(method, url, request, callback) {
+  var requestId = this.uuid + (this.nextId++);
+  nglr[requestId] = function(response) {
+    delete nglr[requestId];
+    callback(200, response);
+  };
+  var payload = {u:url, m:method, p:request};
+  payload = this.base64url(nglr.toJson(payload));
+  var totalPockets = Math.ceil(payload.length / this.maxSize);
+  var baseUrl = this.url + "/$/" + requestId +  "/" + totalPockets + "/";
+  for ( var pocketNo = 0; pocketNo < totalPockets; pocketNo++) {
+    var pocket = payload.substr(pocketNo * this.maxSize, this.maxSize);
+    this.getScript(baseUrl + (pocketNo+1) + "?h=" + pocket, nglr.noop);
+  }
+};
+
+nglr.FrameServer = function(frame) {
+  this.frame = frame;
+};
+nglr.FrameServer.PREFIX = "$DATASET:";
+
+nglr.FrameServer.prototype = {
+  read:function(){
+    this.data = nglr.fromJson(this.frame.name.substr(nglr.FrameServer.PREFIX.length));
+  },
+  write:function(){
+    this.frame.name = nglr.FrameServer.PREFIX +  nglr.toJson(this.data);
+  }, 
+  request: function(method, url, request, callback) {
+    //alert(method + " " + url + " " + nglr.toJson(request) + " " + nglr.toJson(callback));
+  }
+};
+
+
+nglr.VisualServer = function(delegate, status, update) {
+  this.delegate = delegate;
+  this.update = update;
+  this.status = status;
+};
+
+nglr.VisualServer.prototype = {
+  request:function(method, url, request, callback) {
+    var self = this;
+    this.status.beginRequest(request);
+    this.delegate.request(method, url, request, function() {
+      self.status.endRequest();
+      try {
+        callback.apply(this, arguments);
+      } catch (e) {
+        nglr.alert(nglr.toJson(e));
+      }
+      self.update();
+    });
+  }
+};