package com.vci.client.auth2.action;

import java.awt.Component;
import java.awt.Point;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.dnd.DragSourceDragEvent;
import java.awt.dnd.DragSourceDropEvent;
import java.awt.dnd.DragSourceEvent;
import java.awt.dnd.DragSourceListener;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;

import javax.swing.JButton;
import javax.swing.SwingUtilities;

import com.vci.client.auth2.view.AbstractUIFunclet;

public abstract class Action extends JButton implements ActionListener,
		DragGestureListener, DragSourceListener, Transferable,
		DropTargetListener {
	/**
	 * 
	 */
	private static final long serialVersionUID = -3553375893075534123L;
	private AbstractUIFunclet funclet;
	private DataFlavor[] flavors = { DataFlavor.javaFileListFlavor };
	private boolean dragEnable = false;

	public Action(String name) {
		super(name);
		addActionListener(this);
		DragSource dragSource = DragSource.getDefaultDragSource();
		dragSource.createDefaultDragGestureRecognizer(this, // component where
				// drag originates
				DnDConstants.ACTION_MOVE, // actions
				this);
	}

	public abstract void execute();

	@Override
	public void actionPerformed(ActionEvent e) {
		execute();
	}

	public AbstractUIFunclet getFunclet() {
		return funclet;
	}

	public void setFunclet(AbstractUIFunclet funclet) {
		this.funclet = funclet;
	}

	public boolean isDragEnable() {
		return dragEnable;
	}

	public void setDragEnable(boolean dragEnable) {
		this.dragEnable = dragEnable;
	}

	@Override
	public void dragDropEnd(DragSourceDropEvent dsde) {
		if (this.dragEnable) {
			try {
				Object o = dsde.getDragSourceContext().getTransferable()
						.getTransferData(DataFlavor.javaFileListFlavor);
				//当前的位置
				Point location = dsde.getLocation();
				SwingUtilities.convertPointFromScreen(location, getFunclet().getRightMainPanel()
						.getRightCenterToolBar());
				Action target = (Action) getFunclet().getRightMainPanel()
						.getRightCenterToolBar().findComponentAt(location);
				List<Component> all = Arrays.asList(getFunclet()
						.getRightMainPanel().getRightCenterToolBar()
						.getComponents());
				getFunclet().getRightMainPanel().getRightCenterToolBar()
						.remove((Action) o);
				getFunclet().getRightMainPanel().getRightCenterToolBar()
						.add((Action) o, all.indexOf(target));
			} catch (Exception e) {
			}
			getFunclet().updateUI();
		}
	}

	@Override
	public void dragGestureRecognized(DragGestureEvent dge) {
		dge.startDrag(DragSource.DefaultMoveDrop, this, this);
	}

	@Override
	public DataFlavor[] getTransferDataFlavors() {
		return flavors;
	}

	@Override
	public boolean isDataFlavorSupported(DataFlavor flavor) {
		for (DataFlavor df : flavors) {
			if (df.equals(flavor)) {
				return true;
			}
		}
		return false;
	}

	@Override
	public Object getTransferData(DataFlavor flavor)
			throws UnsupportedFlavorException, IOException {
		return this;
	}

	@Override
	public void dragEnter(DragSourceDragEvent dsde) {
	}

	@Override
	public void dragOver(DragSourceDragEvent dsde) {
	}

	@Override
	public void dropActionChanged(DragSourceDragEvent dsde) {
	}

	@Override
	public void dragExit(DragSourceEvent dse) {
	}

	@Override
	public void dragEnter(DropTargetDragEvent dtde) {
		// TODO Auto-generated method stub

	}

	@Override
	public void dragOver(DropTargetDragEvent dtde) {
		System.out.println();

	}

	@Override
	public void dropActionChanged(DropTargetDragEvent dtde) {
		// TODO Auto-generated method stub

	}

	@Override
	public void dragExit(DropTargetEvent dte) {

	}

	@Override
	public void drop(DropTargetDropEvent dtde) {
		System.out.println();

	}

}