import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.DataFlavor;
import java.awt.Toolkit;

class
ClipboardApi
implements Transferable, ClipboardOwner {

    private static final ClipboardApi
    instance = new ClipboardApi();

    private static String
    string;

//  ---%-@-%---

    public static void
    serve(String string)
    {
        assert string != null;
        instance.string = string;
		Toolkit tk = Toolkit.getDefaultToolkit();
		Clipboard cb = tk.getSystemClipboard();
		cb.setContents(instance, instance);
    }

//   -  -%-  -

	public String
	getTransferData(DataFlavor flavour)
	{
        assert flavour == DataFlavor.stringFlavor;
        return string;
	}

	public DataFlavor[]
	getTransferDataFlavors()
	{
		return new DataFlavor[] { DataFlavor.stringFlavor };
		/*
		* We should probably also support javaJVMLocalObjectMimeType,
		* so that the compose window can ask for the List<Segment>.
		* Although also like, if we don't store emoji shortcodes in
		* the image segments, there is no point. Anyways, what is
		* important is the string format first, allowing us to
		* copy links or large lengths of text.
		*/
	}

	public boolean
	isDataFlavorSupported(DataFlavor flavour)
	{
		return flavour == DataFlavor.stringFlavor;
	}

	public void
	lostOwnership(Clipboard clipboard, Transferable contents) { }

}