Drag & Drop Problem

[Andreas Höschler]

Hello Steppers,

I have an application with a NSView sublcass. I sent

	[self registerForDraggedTypes:[NSArray 
arrayWithObject:NSFilenamesPboardType]];

to this view. From within the application I can drop files on this 
view. But if I start a second instance and try to drag and drop from 
one to the other application instance,

- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender

is never called and the image slides back. This works on MacOSX so I 
started to look into the GNUstep code and found out, that in 
GSDragView.m this

- (void) _handleEventDuringDragging: (NSEvent *)theEvent
{
  switch ([theEvent type])
    {
    case NSAppKitDefined:
      {
        GSAppKitSubtype sub = [theEvent subtype];

        switch (sub)
        {
        case GSAppKitWindowMoved:
        case GSAppKitWindowResized:
          /*
           * Keep window up-to-date with its current position.
           */
          [NSApp sendEvent: theEvent];
          break;

        case GSAppKitDraggingStatus:
          NSDebugLLog(@"NSDragging", @"got GSAppKitDraggingStatus\n");
          if ((int)[theEvent data1] == targetWindowRef)
            {
              unsigned int newTargetMask = [theEvent data2];

              if (newTargetMask != targetMask)
                {
		NSLog(@"settig newTargetMask %d", newTargetMask);  // <--- this gets 
called
                  targetMask = newTargetMask;
                  [self _setCursor];
                }
            }
        ...

the targetMask gets set to 8. This causes the problem! In

- (void) _handleDrag: (NSEvent*)theEvent slidePoint: (NSPoint)slidePoint

the slide back portion gets called since (targetMask & dragMask & 
operationMask) evaluates to 0. Any idea what's going wrong here. Is 
drag and drop between applications actually working on GNUstep. I 
encounetr this on Solaris 10 with GNOME.

Thanks,

  Andreas