MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Specifiche Scaricare il pdf (Pagina 122)

Chapter 3 44

9 In the same doConnect function, create the onSync method to handle the change in users.

// When the list of users_so is updated, refresh the

// People list box.

users_so.onSync = function(userList) {

_root.People.removeAll();

for ( var i in users_so.data) {

if (users_so.data[i] != null) {

_root.People.addItem(users_so.data[i]);

}

// Sort alphabetically, because order returned

// is not guaranteed to be consistent.

_root.People.sortItemsBy("label", "ASC");

}

Provide a callback function to be called by the server.

// Update the shared object with the message.

users_so.msgFromSrvr = function(msg) {

_root.History.text += msg;

_root.History.scroll = _root.History.maxscroll;

historyScroll.setScrollTarget(history);

historyScroll.setScrollPosition(_root.History.maxscroll);

}

If the label on the Connect button is Disconnect, then close the connection and reset the

buttons.

else if (Connect_btn.getLabel() == "Disconnect") {

// Close connection

_root.client_nc.close();

// Don’t allow the user to send when not connected

_root.Send_btn.setEnabled(false);

// Rest button label

Connect_btn.setLabel("Connect");

}

} // doConnect function ends here

Create an event handler for when the user selects Send. In this function, if there’s any text in

the Message input text box, call the server function,

msgFromClient, and pass it the

Message.text text.

// Send the message text by calling the server message function

function doSend() {

// If there’s message text, pass it to the server function msgFromClient

if (length(_root.Message.text) > 0) {

_root.client_nc.call("msgFromClient", null, _root.Message.text);

}

// Clear the message text

_root.Message.text = "";

}

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