package com.xunlei;

import java.awt.BorderLayout;
import java.awt.FileDialog;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.TitledBorder;

/**
 * @author Hank
 * @date 2015-4-22 下午4:38:55
 */
@SuppressWarnings("serial")
public class XunLeiMain extends JFrame {

	public XunLeiMain(String title){
		super(title);
		setSize(600, 500);
		setLocationRelativeTo(null);
		setContentPane(createPanel());
	}
	
	private JPanel createPanel(){
		JPanel jpanel = new JPanel(new BorderLayout());
		jpanel.add(BorderLayout.NORTH, createNorthPanel());
		jpanel.add(createResultPane());
		return jpanel;
	}
	
	private static JTextField urlField;
	private static JButton load;
	private static JButton clear;
	private static JButton save;
	private static int count = 1;
	
	private JPanel createNorthPanel(){
		JPanel jpanel = new JPanel();
		//创建子组件
		urlField = new JTextField(20);
		urlField.setText("http://www.xunleihuiyuan.net/");
		load = new JButton("加载");
		clear = new JButton("清空");
		save = new JButton("保存");
		//给加载按钮绑定事件
		load.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if(count > 1){
					int pushBut = JOptionPane.showConfirmDialog(null, "重新加载?", "提示",JOptionPane.YES_NO_OPTION);
					if(pushBut != JOptionPane.YES_OPTION){
						return;
					}
				}
				XunleihuiyuanNet xunleihuiyuanNet = new XunleihuiyuanNet();
//				String url = "http://www.xunleihuiyuan.net/";
//				urlField.setText("http://www.xunleihuiyuan.net/");
				String url = urlField.getText();
				xunleihuiyuanNet.save1(url);
				String href = xunleihuiyuanNet.jx1(url);
				xunleihuiyuanNet.save2(href);
				String result = xunleihuiyuanNet.jx2();
				jtextArea.setText(result);
				count ++;
				JOptionPane.showMessageDialog(null, "加载成功!");
			}
		});
		//给重载按钮绑定事件
		clear.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				jtextArea.setText("");
			}
		});
		//给保存按钮绑定事件
		save.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				File file = new File(getTitle());
				if(!file.exists()){
					FileDialog fd = new FileDialog(new JFrame(), "保存文本", FileDialog.SAVE);
					fd.setFile(getTitle());
					fd.setVisible(true);
					if(fd.getDirectory() == null){
						return;
					}
					file = new File(fd.getDirectory() + fd.getFile() + ".txt");
					setTitle(getTitle());
				}
				BufferedWriter bw = null;
				try {
					bw = new BufferedWriter(new FileWriter(file, false));
					bw.append(jtextArea.getText());
					bw.flush();
				} catch (IOException ioe) {
					JOptionPane.showMessageDialog(null, "提示消息", "无法保存文件", JOptionPane.ERROR_MESSAGE);
				} finally {
					try {
						if(bw != null){
							bw.close();
							JOptionPane.showMessageDialog(null, "保存成功!");
						}
					} catch (IOException ioe) {
						JOptionPane.showMessageDialog(null, "保存失败!", "保存失败", JOptionPane.ERROR_MESSAGE);
						ioe.printStackTrace();
					}
				}
			}
		});
		//把子组件添加进面板
		jpanel.add(urlField);
		jpanel.add(load);
		jpanel.add(clear);
		jpanel.add(save);
		
		return jpanel;
	}
	
	JTextArea jtextArea;
	private JScrollPane createResultPane(){
		JScrollPane pane = new JScrollPane();
		pane.setBorder(new TitledBorder("编辑区域"));
		jtextArea = new JTextArea();
		jtextArea.setFont(new Font("宋体", Font.PLAIN, 13));
		jtextArea.setLineWrap(true);
		pane.getViewport().add(jtextArea);
		return pane;
	}
	
	public static void main(String[] args) {
		new XunLeiMain("新建文本文件").setVisible(true);
	}
}