<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:Script>
        <![CDATA[
            private function checkBox_change(evt:Event):void {
                richTextEditor.textArea.condenseWhite = checkBox.selected;
            }
        ]]>
    </mx:Script>

    <mx:String id="str" source="lorem.html" />

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="condenseWhite:">
                <mx:CheckBox id="checkBox"
                        change="checkBox_change(event);" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:RichTextEditor id="richTextEditor"
            htmlText="{str}"
            width="100%"
            height="100%" />

</mx:Application>