[GitHub] [royale-asjs] yishayw opened a new issue, #1207: Emulation - DragManager not showing drop icon

[GitBox <gi...@apache.org>]

yishayw opened a new issue, #1207:
URL: https://github.com/apache/royale-asjs/issues/1207

   In the following example there should be an example with an 'X' unless the drop target is moved over
   
   ```
   <?xml version="1.0"?>
   <!-- dragdrop\DandDCanvas.mxml -->
   <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
   	xmlns:s="library://ns.apache.org/royale/spark"
   	xmlns:mx="library://ns.apache.org/royale/mx"
   	backgroundColor="white">
   <s:layout>
   	<s:VerticalLayout/>
   </s:layout>
   <fx:Script>
   	<![CDATA[
   		import mx.core.DragSource;
   		import mx.managers.DragManager;
   		import mx.events.*;
   		import mx.containers.Canvas;
   		// Initializes the drag and drop operation.
   		private function mouseMoveHandler(event:org.apache.royale.events.MouseEvent):void {
   			// Get the drag initiator component from the event object.
   			var dragInitiator:Canvas=Canvas(event.currentTarget);
   			// Get the color of the drag initiator component.
   			var dragColor:int = dragInitiator.getStyle('backgroundColor');
   			// Create a DragSource object.
   			var ds:DragSource = new DragSource();
   			// Add the data to the object.
   			ds.addData(dragColor, 'color');
   			// Call the DragManager doDrag() method to start the drag.
   			DragManager.doDrag(dragInitiator, ds, event);
   		}
   
   		// Called when the user moves the drag indicator onto the drop target.
   		private function dragEnterHandler(event:mx.events.DragEvent):void {
   			// Accept the drag only if the user is dragging data
   			// identified by the 'color' format value.
   			if (event.dragSource.hasFormat('color')) {
   				// Get the drop target component from the event object.
   				var dropTarget:Canvas=Canvas(event.currentTarget);
   				// Accept the drop.
   				DragManager.acceptDragDrop(dropTarget);
   			}
   		}
   		// Called if the target accepts the dragged object and the user
   		// releases the mouse button while over the Canvas container.
   		private function dragDropHandler(event:mx.events.DragEvent):void {
   			// Get the data identified by the color format
   			// from the drag source.
   			var data:Object = event.dragSource.dataForFormat('color');
   			// Set the canvas color.
   			myCanvas.setStyle("backgroundColor", data);
   		}
   		]]>
   </fx:Script>
   <!-- A horizontal box with red and green canvases that the user can drag. -->
   <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."/>
   	<!-- Handles dragEnter and dragDrop events to allow dropping. -->
   <mx:Canvas id="myCanvas"
   	width="100" height="100"
   	backgroundColor="#FFFFFF"
   	borderStyle="solid"
   	dragEnter="dragEnterHandler(event);"
   	dragDrop="dragDropHandler(event);"/>
   <mx:Button id="b1"
   	label="Clear Canvas"
   	click="myCanvas.setStyle('backgroundColor', '0xFFFFFF');"/>
   </s:Application>
   ```


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