silk-gui/core/client_api/abstract/MessageProxyClientSlave.js

GUI for developers and Node OS

function MessageProxy(clientSend,slaveSend){
  this.slaves = {}; //slaves can have multiple clients at a time
  this.clients = {}; //clients can only have one slave at a time
  this.clientSend = clientSend;
  this.slaveSend = slaveSend;
}

MessageProxy.prototype.clientEnter = function(client){
  client.id = Date.now()+"|"+Math.random();
  client.slave = void(0);
  this.clients[client.id] = {id:client.id,slave:client.slave,res:client,sq:[]};
};

MessageProxy.prototype.bindClient = function(slave,client){
  if(!this.slaves[slave.id]){
    throw new Error("nonexistant skave");
  }
  this.clients[client.id].slave = this.slaves[slave.id];
  this.slaves[slave.id].clients.push(client.id);
};

MessageProxy.prototype.clientLeave = function(client){
  client.slave.clients.splice(client.slave.clients.indexOf(client),1);
  delete this.clients[client.id];
  client = null;
};

MessageProxy.prototype.clientMessage = function(message,client){
  if(message.name == "bind"){
    return this.bindClient(message,client);
  }
  if(!this.clients[client.id].slave){
    message.data = null;
    message.error = "User has no local";
    return this.clientSend(message,client);
  }
  message.client = client.id;
  this.slaveSend(message,this.clients[client.id].slave);
};

MessageProxy.prototype.slaveEnter = function(slave){
  slave.id = Date.now()+"|"+Math.random();
  slave.clients = [];
  this.slaves[slave.id] = slave;
  this.slaveSend({name:"id",type:"trigger",data:slave.id},slave);
};

MessageProxy.prototype.slaveLeave = function(slave){
  var that = this;
  slave.clients.forEach(function(clientid){
    delete that.clients[clientid].slave;
  });
  delete this.slaves[slave.id];
  slave = null;
};

MessageProxy.prototype.slaveMessage = function(message,slave){
  if(!this.clients[message.client]){
    message.data = null;
    message.error = "User does not exist";
    this.slaveSend(message,slave);
  }
  if(slave.clients.indexOf(message.client) == -1){
    message.data = null;
    message.error = "This local is not subscribed to this user";
    this.slaveSend(message,slave);
  }
  this.clientSend(message, this.clients[message.client]);
};

if(typeof module != "undefined" && module.exports){
  module.exports = MessageProxy;
}