package {
    import flash.display.*;
    import flash.text.*;
    import flash.events.*;
  
    // Demonstrates the use of the TextEvent.LINK event in a simplified
    // chat room example with clickable user names. 
    public class @ax-actionscript-events-ChatRoom extends Sprite {
      // A text field containing chat messages
      private var messages:TextField;
      
      public function @ax-actionscript-events-ChatRoom () {
        // Create a text field with 'event:' protocol links
        messages = new TextField();
        messages.multiline = true;
        messages.autoSize = TextFieldAutoSize.LEFT;
        messages.border     = true;
        messages.background = true;
        messages.htmlText = 
          "<a href='event:privateChat,user1'>Andy</a> says: What's up?<br>"
        + "<a href='event:privateChat,user2'>Mike</a> says: I'm busy...<br>"
        + "<a href='event:privateChat,user1'>Andy</a> says: Ok see you later";
        addChild(messages);
  
        // Register with the 'messages' TextField object for 
        // TextEvent.LINK events
        messages.addEventListener(TextEvent.LINK, linkListener);
      }
  
      // Executed any time the user clicks an 'event:' protocol link in
      // the 'messages' TextField object
      private function linkListener (e:TextEvent):void {
        // The content of e.text is the full string that follows "event:" in
        // the href attribute. For example, "privateChat,user1". Here we
        // split that text into an operation ("privateChat") the 
        // corresponding argument ("user1").
        var requestedCommand:Array = e.text.split(",");
        var operationName:String   = requestedCommand[0];
        var argument:String        = requestedCommand[1];
  
        // If the operation requested is a private chat request, invoke
        // the requestPrivateChat() method.
        if (operationName == "privateChat") {
          requestPrivateChat(argument);
        }
      }
  
      // Sends a private chat invitation to the specified user
      private function requestPrivateChat (userID:String):void {
        trace("Now requesting private chat with " + userID);
      }
    }
  }