frameworks/as/src/org/apache/flex/html/staticControls/accessories/PasswordInputBead.as

////////////////////////////////////////////////////////////////////////////////
//
//  Licensed to the Apache Software Foundation (ASF) under one or more
//  contributor license agreements.  See the NOTICE file distributed with
//  this work for additional information regarding copyright ownership.
//  The ASF licenses this file to You under the Apache License, Version 2.0
//  (the "License"); you may not use this file except in compliance with
//  the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////
package org.apache.flex.html.staticControls.accessories
{
	import org.apache.flex.core.CSSTextField;
	import org.apache.flex.core.IBead;
	import org.apache.flex.core.IStrand;
	import org.apache.flex.events.Event;
	import org.apache.flex.events.IEventDispatcher;
	import org.apache.flex.core.ITextFieldView;
	
	public class PasswordInputBead implements IBead
	{
		public function PasswordInputBead()
		{
		}
		
		private var _strand:IStrand;
		
		public function set strand(value:IStrand):void
		{
			_strand = value;
			
			IEventDispatcher(value).addEventListener("viewChanged",viewChangeHandler);
		}
		
		private function viewChangeHandler(event:Event):void
		{			
			// get the ITextFieldView bead, which is required for this bead to work
			var textView:ITextFieldView = _strand.getBeadByType(ITextFieldView) as ITextFieldView;
			if (textView) {
				var textField:CSSTextField = textView.textField;
				textField.displayAsPassword = true;
			}
			else {
				throw new Error("PasswordInputBead requires strand to have a TextInputView bead");
			}
		}
	}
}