The drag initiators, and drop target
<?xml version="1.0"?>
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<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" backgroundColor="white">
<mx:Script>
import mx.core.DragSource;
import mx.managers.DragManager;
import mx.events.*;
import mx.containers.Canvas;
private function mouseMoveHandler(event:MouseEvent):void {
var dragInitiator:Canvas=Canvas(event.currentTarget);
var dragColor:int = dragInitiator.getStyle('backgroundColor');
var ds:DragSource = new DragSource();
ds.addData(dragColor, 'color');
DragManager.doDrag(dragInitiator, ds, event);
}
private function dragEnterHandler(event:DragEvent):void {
if (event.dragSource.hasFormat('color')) {
var dropTarget:Canvas=Canvas(event.currentTarget);
DragManager.acceptDragDrop(dropTarget);
}
}
private function dragDropHandler(event:DragEvent):void {
var data:Object = event.dragSource.dataForFormat('color');
myCanvas.setStyle("backgroundColor", data);
}
</mx:Script>
<mx:HBox>
<mx:Canvas width="30" height="30" backgroundColor="red" borderStyle="solid" mouseMove="mouseMoveHandler(event);"/>
<mx:Canvas width="30" height="30" backgroundColor="green" borderStyle="solid" mouseMove="mouseMoveHandler(event);"/>
</mx:HBox>
<mx:Label text="Drag a color onto the Canvas container."/>
<mx:Canvas id="myCanvas" width="100" height="100" backgroundColor="#FFFFFF" borderStyle="solid" dragEnter="dragEnterHandler(event);" dragDrop="dragDropHandler(event);"/>
</mx:Application>
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