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Type coertion DragEvent issue

Jan 10, 2012 6:45 AM

We are developing a new plugin for Photoshop, and we use the <mx:Window....> class to open a new modal window.
Using this approach we always get problems when we try to use DragNDrop event on components like HorizontalList.

Actually the main problem is concerning different version of the class DragEvent:

 

TypeError: Error #1034: Type Coercion failed: cannot convert mx.events::DragEvent@15fe9581 to mx.events.DragEvent.
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.4.0\frameworks\projects\framework\src\mx\core\UIComponent.as:9408]
    at mx.managers::NativeDragManagerImpl/_dispatchDragEvent()[C:\autobuild\galaga\frameworks\projects\airframework\src\mx\managers\NativeDragManagerImpl.as:625]
    at mx.managers::NativeDragManagerImpl/nativeDragEventHandler()[C:\autobuild\galaga\frameworks\projects\airframework\src\mx\managers\NativeDragManagerImpl.as:598]

 

Now we have found a solution using compiler option:

 

-includes=mx.managers.systemClasses.MarshallingSupport

 

but we use CS Extension Builder based on Flex SDK 3.4 so it's not possible to use that option.

Do you have any advise to fix that problem?

Thanks

 

Marco

1650 Views   8 Replies   Latest reply: charanseeram, Jun 27, 2012 7:42 AM
 
Replies
  • Harbs.
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    1. Harbs.,
    Jan 10, 2012 7:51 AM   in reply to PhotoSì
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    Don't use the debugger...

     

    Harbs

     
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  • Bob Stucky
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    2. Bob Stucky,
    Jan 10, 2012 8:31 AM   in reply to PhotoSì
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    I assume you're dragging to and from Photoshop from your panel?

     

    I have an extension that does that successfully using Flex 3.4, listening for NativeDragEvent. It's not part of a mx:Window component...

     
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  • PhotoSì
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    3. PhotoSì,
    Jan 20, 2012 8:02 AM   in reply to Bob Stucky
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    Thank you Bob, it works with NativeDragEvent.
    The only problem is that the HorizontalList doesn't show the lines indicator during the drag and drop operation, but i resolved creating by myself.

     
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  • nam1490
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    4. nam1490,
    Feb 29, 2012 1:04 AM   in reply to PhotoSì
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    hi  PhotoSi,

    How you calculate drop position?

     
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  • PhotoSì
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    5. PhotoSì,
    Feb 29, 2012 1:23 AM   in reply to nam1490
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    Actually all items on our list have an attribute "position" (handle by our methods). When the drop event is catch i can get the item where the drop is engaged....and then our attribute about the position.

    did it help you?

     
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  • nam1490
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    6. nam1490,
    Feb 29, 2012 2:04 AM   in reply to PhotoSì
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    how you got the item from list through nativeEvent?Actually i have used AdvancedDataGrid and i want drop position or item at drop position?

     
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  • PhotoSì
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    7. PhotoSì,
    Feb 29, 2012 2:18 AM   in reply to nam1490
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    simply every item on the list has a eventHandler: nativeDragDrop="dragDropHandler...(event, data.Position)" where data.Position is the Position of the element (we user indexOf(this) on the horizzontal list to get the right position).

    We don't use DataGrid so i cannot help on that........

     
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  • charanseeram
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    8. charanseeram,
    Jun 27, 2012 7:42 AM   in reply to PhotoSì
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    *** Security Sandbox Violation ***

    SecurityDomain 'http://portip:8080/MyProject//servlet/ThumbDownloadServlet?fileName=17 9924 copy.tif&sessionId=NrzEsU-sPKY2ABZCGQ03CQ__.node1&assetId=385344&type =thumb' tried to access incompatible context 'app:/StageManager-2.5.swf'

    path:http://portip:8080/MyProject//servlet/ThumbDownloadServlet?fileName=AD _demo_images.jpg&sessionId=NrzEsU-sPKY2ABZCGQ03CQ__.node1&assetId=5056 78&type=thumb

    TypeError: Error #1034: Type Coercion failed: cannot convert mx.events::DragEvent@1a4776d1 to mx.events.DragEvent.

        at flash.events::EventDispatcher/dispatchEventFunction()

        at flash.events::EventDispatcher/dispatchEvent()

        at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.4.0\frameworks\pr ojects\framework\src\mx\core\UIComponent.as:9408]

        at mx.managers::NativeDragManagerImpl/_dispatchDragEvent()[C:\autobuild\ galaga\frameworks\projects\airframework\src\mx\managers\NativeDragMana gerImpl.as:625]

        at mx.managers::NativeDragManagerImpl/nativeDragEventHandler()[C:\autobu ild\galaga\frameworks\projects\airframework\src\mx\managers\NativeDrag ManagerImpl.as:598]

    TypeError: Error #1034: Type Coercion failed: cannot convert mx.events::DragEvent@1a477661 to mx.events.DragEvent.

     

    Hi , i am even facing same problem, time being i manged with: myList.addEventListener(NativeDragEvent.NATIVE_DRAG_COMPLETE,onDragCom plete);

          But am looking for some parmanet solution for doDrop , some one help me understanding why this  :myList.addEventListener(NativeDragEvent.NATIVE_DRAG_DROP,onDrop); is not firing ..

     

    public function imageDrop( event: NativeDragEvent ): void {           

     

                trace( "Drop image target is: " + event.currentTarget.toString() );

                if ( event.clipboard.hasFormat( ClipboardFormats.FILE_LIST_FORMAT )||

                    event.clipboard.hasFormat(ClipboardFormats.TEXT_FORMAT) ||

                    event.clipboard.hasFormat(ClipboardFormats.URL_FORMAT)) {

                    var fileList: Array = event.clipboard.getData( ClipboardFormats.FILE_LIST_FORMAT ) as Array;

                    trace( "File List: " + fileList.toString() );

                    if ( fileList.length > 0 ) {

                        var f: DragFile = new DragFile( fileList[ 0 ] as flash.filesystem.File );

                        if ( "jpgjpegpnggif".indexOf( f.extension.toLowerCase() ) > -1 ) {

                            trace( "Loading file: " + f.nativePath );

                            loadFile( f );                       

                            return;

                        }

                        trace( "file is not an image" );

                    } else {

                        trace ( "fileList is empty" );

                    }

                }

                if ( event.clipboard.hasFormat( ClipboardFormats.BITMAP_FORMAT ) ) {

                    trace( "Dropping the bitmap" );

                    var bitmapData: BitmapData = event.clipboard.getData( ClipboardFormats.BITMAP_FORMAT ) as BitmapData;

                    var bitMap: Bitmap = new Bitmap( bitmapData );

                    model.imageCollection.addItem( bitMap );

                    model.selectedIndex = model.imageCollection.length - 1;

                }           

            }

     
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