Drag and drop destination setup using MacRuby

drag_drop.rb

class TableViewDataSource
  def awakeFromNib
    view.registerForDraggedTypes(
      NSArray.arrayWithObjects("BookmarkDictionaryListPboardType", "MozURLType",
                               NSFilenamesPboardType, NSURLPboardType, NSStringPboardType, nil))
  end

  def tableView(aView, validateDrop:info, proposedRow:row, proposedDropOperation:op)
    NSDragOperationEvery
  end

  def tableView(aView, acceptDrop:info, row:row, dropOperation:op)
    pboard = info.draggingPasteboard
    str = pboard.stringForType("NSStringPboardType")

    url_text = pboard.stringForType("public.utf8-plain-text")
    url = pboard.stringForType("public.url") || url_text || str

    url_name = pboard.stringForType("public.url-name")
    url_html = pboard.stringForType("public.html")

    # Do something with the dropped URL
    # ...
    # Need to acknowledge the data was dropped successfully, and give appropriate UI feedback
    return true
  end
end