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// 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();
});
}
};
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