MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Especificações descarregar pdf (Página 123)

Sample Applications 45

13 Create the setHistory function that the server calls to update the text in the History

dynamic text box.

// Update the History on the server with the message

client_nc.setHistory = function(msg) {

_root.History.text = msg;

}

To write the server-side ActionScript for this sample:

1 Create a new file using your server-side ActionScript editor, and write the event handler

onAppStart for initializing the application variables.

application.onAppStart = function()

{

trace("Begin sharing text");

// Get the server shared object users_so

application.users_so = SharedObject.get("users_so", false);

// Initialize the history of the text share

application.history = "";

// Initialize the unique user ID

application.nextId = 0;

}

Write the event handler onConnect for managing users and sending the history to all clients.

application.onConnect = function(newClient, name)

{

// Make this new client’s name the user’s name

newClient.name = name;

// Create a unique ID for this user while incrementing the

// application.nextID.

newClient.id = "u" + application.nextId++;

// Update the users_so shared object with the user’s name

application.users_so.setProperty(newClient.name, name);

// Accept the client’s connection

application.acceptConnection(newClient);

// Call the client function setHistory, and pass

// the initial history

newClient.call("setHistory", null, application.history);

// The client will call this function to get the server

// to accept the message, add the user’s name to it, and

// send it back out to all connected clients.

newClient.msgFromClient = function(msg) {

msg = this.name + ": " + msg + "\n";

application.history += msg;

application.users_so.send("msgFromSrvr", msg);

}

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