/* * @(#) DeleteFileAction.java * Copyright 2004 HWStudio. All rights reserved. */package hws.item.smart.action.share.upload;//導入核心Java類庫import java.awt.event.ActionEvent;import java.util.List;import java.util.zip.ZipEntry;import javax.swing.JOptionPane;import javax.swing.tree.DefaultMutableTreeNode;//導入自定義Java類庫import hws.item.smart.Smart;import hws.item.smart.misc.StringShop;import hws.item.smart.panel.function.chat.ViewPanel;import hws.item.smart.panel.function.share.UploadPanel;import hws.item.smart.action.BaseAction;import hws.item.smart.utility.chat.UserInfo;/** * 刪除選中的文件或者目錄 * * @version 0.1 2005-08-29 * @author Hwerz */public class DeleteFileAction extends BaseAction {    /*------------------------------------------------------------------------*     *                                屬性定義                                *     *------------------------------------------------------------------------*/    /**     * 該類自身的一個靜態引用     */    private static DeleteFileAction action;    /*------------------------------------------------------------------------*     *                                構造函數                                *     *------------------------------------------------------------------------*/    /**     * 構造函數為私有，這樣在整個運行過程中該類就只能有一個實例     */    private DeleteFileAction() {        super("刪除文件");        setHintInfo("刪除選中的文件或者目錄");        setEnabled(false);    }    /*------------------------------------------------------------------------*     *                                公共方法                                *     *------------------------------------------------------------------------*/    /**     * 對該類提供的一個全局訪問點，用來實例化該對象     *     * @return 該類唯一的一個實例     */    public static DeleteFileAction getInstance() {        if (action == null) {            action = new DeleteFileAction();        }        return action;    }    /*------------------------------------------------------------------------*     *                                私有方法                                *     *------------------------------------------------------------------------*/    /**     * 刪除     */    private void delete() {        DefaultMutableTreeNode n = UploadPanel.getInstance().getSelectedNode();        ZipEntry entry = (ZipEntry) n.getUserObject();        String answer = "您真的確定要刪除選中的文件嗎？";        if (entry.isDirectory()) {            answer = "您真的確定要刪除選中的目錄嗎？";        }        int option = JOptionPane.showConfirmDialog(Smart.getInstance(), answer,            StringShop.HINT_TITLE, JOptionPane.OK_CANCEL_OPTION,            JOptionPane.QUESTION_MESSAGE);        if (option == JOptionPane.OK_OPTION) {            UploadPanel.getInstance().deleteFile();        }    }    /*------------------------------------------------------------------------*     *                                覆蓋方法                                *     *------------------------------------------------------------------------*/    /**     * 覆蓋超類Action的方法     *     * @param event ActionEvent對象     */    public void actionPerformed(ActionEvent event) {        String id = ViewPanel.getInstance().getUserID();        if (id.length() > 0) {            UserInfo user = UserInfo.getRemoteUserInfo(id);            List files = user.getSharesInfo().getAllShareFiles();            String file = UploadPanel.getInstance().getSelectedFile();            boolean shared = false;            for (int i = 0; i < files.size(); i++) {                String file2 = files.get(i).toString();                if (file2.indexOf(file) != -1) {                    shared = true;                    break;                }            }            if (shared) {                JOptionPane.showMessageDialog(Smart.getInstance(),                    "不能刪除共享文件及其所在的目錄，除非先取消文件的共享屬性！",                    StringShop.HINT_TITLE, JOptionPane.INFORMATION_MESSAGE);            } else {                delete();            }        } else {            JOptionPane.showMessageDialog(Smart.getInstance(),                "您還沒有登錄，請先登錄！", StringShop.HINT_TITLE,                JOptionPane.INFORMATION_MESSAGE);        }    }}