root / GPXShare / desktop / trunk / src / main.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" 
        layout="absolute"
        nativeDragEnter="onNativeDragEnter(event);"
        nativeDragDrop="onNativeDragDrop(event);"
        creationComplete="consumer.subscribe();">
        
        <mx:Script>
                <![CDATA[
                        import mx.events.DataGridEvent;
                        import mx.events.ListEvent;
                        import mx.events.FileEvent;
                        import flash.desktop.ClipboardFormats;
                        import flash.desktop.NativeDragManager;
                        import flash.desktop.NativeDragOptions;
                        
                        import mx.messaging.events.MessageEvent;
                        import mx.messaging.messages.AsyncMessage;
                        
                        import com.adobe.gpslib.GPX;
                        
                        [Bindable]
                        public var gpx : GPX = new GPX();
                        
                        private var stream : FileStream;
                        private var gpxFile : File;
                        
                        // Native drag enter function
                        public function onNativeDragEnter(event:NativeDragEvent) : void
                        {
                                // Create a temporary array for the files being dragged in
                                var arrFiles : Array = event.clipboard.getData(ClipboardFormats.FILE_LIST_FORMAT) as Array;
                                var file : File = arrFiles[0] as File;
                                
                                // Make sure they're draggin in a .gpx file
                                if(event.clipboard.hasFormat(ClipboardFormats.FILE_LIST_FORMAT) && file.extension == 'gpx')
                                {
                                        NativeDragManager.acceptDragDrop(this);
                                }
                        }
                        
                        // Called after a we accept the Drag Drop
                        public function onNativeDragDrop(event:NativeDragEvent) : void
                        {
                                // Create a temporary array to store the files being dragged
                                var arrFiles : Array = event.clipboard.getData(ClipboardFormats.FILE_LIST_FORMAT) as Array;
                                gpxFile = arrFiles[0] as File;
                                
                                // Create the filestream and add event listeners
                                stream = new FileStream();
                                stream.addEventListener(Event.COMPLETE, onFileOpenComplete);
                                stream.openAsync(gpxFile, FileMode.READ);
                                        
                        }
                        
                        // When our file finishes opening
                        public function onFileOpenComplete(event:Event) : void
                        {
                                // Read the data from our GPX file
                                var str : String = stream.readMultiByte(stream.bytesAvailable, File.systemCharset);
                                        stream.close();                         
                                
                                        // Create a GPX object from our file data
                                        gpx.newGpxFromXml(new XML(str));
                                        dg.dataProvider = gpx.arrWaypoints;
                                
                                        // Send the message to consumers
                                        doSend(gpx.arrWaypoints);
                        }
                        
                        // When we get back a change event make sure the right index is selected
                        public function doMessage( event:MessageEvent ):void
                        {
                                dg.selectedIndex = event.message.body.selectedIndex;
                        }
                        
                        // Send our changes out to the consumers
                        public function doSend( array : Array ):void
                        {
                                // Create the message and set the message body to our data
                                var mess:AsyncMessage = new AsyncMessage();
                                        mess.body.waypoints = array;
                                        producer.send( mess );
                        }
                        
                        // When something changes, call this function
                        public function doChangeSend( event:ListEvent ) : void
                        {
                                // Create the message and set the message body to our data
                                var mess:AsyncMessage = new AsyncMessage();
                                        mess.body.selectedIndex = dg.selectedIndex;
                                        producer.send( mess );
                        }
                ]]>
        </mx:Script>
        
        <mx:Producer id="producer" destination="GpxShare" />
        <mx:Consumer id="consumer" destination="GpxShare" message="doMessage( event );" />
        <mx:DataGrid id="dg" width="100%" height="100%" change="doChangeSend(event);">
                <mx:columns>
                        <mx:Array>
                                <mx:DataGridColumn dataField="name" headerText="Name" />
                                <mx:DataGridColumn dataField="latitude" headerText="Latitude" />
                                <mx:DataGridColumn dataField="longitude" headerText="Longitude" />
                                <mx:DataGridColumn dataField="elevation" headerText="Elevation" />
                        </mx:Array>
                </mx:columns>
        </mx:DataGrid>
</mx:WindowedApplication>