修改Watij源码，解决弹窗问题

这段时间在用Watij，版本是3.2.1，然而我发现它在处理弹窗方面并不如人意，于是对Watij的源代码做了些修改，终于可以处理大部分弹窗了。

首先，修改IEAlertDialog.java
将方法ok()改为：

    public void ok() throws Exception { 
//      Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", "OK"); 
//      Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", "确定"); 
        String[] windowText = {"确定","是(Y)","OK","Yes"}; 
        Wnd wnd = IEUtil.waitDialogWndEx(dialog, "Button", windowText); 
        IEUtil.clickWindowUntilGone(wnd, dialog); 
    } 

其次，修改IEConfirmDialog.java
将方法cancel()改为：

    public void cancel() throws Exception { 
//      Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", 
//                WatijResourceLoader.getString(WatijResources.IEConfirmDialog_Cancel)); 
//      Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", "取消"); 
        String[] windowText = {"取消","否(N)","Cancel","No"}; 
        Wnd wnd = IEUtil.waitDialogWndEx(dialog, "Button", windowText); 
        IEUtil.clickWindowUntilGone(wnd, dialog); 
    } 

或者可以增加自定义方法：

    public void yes() throws Exception{ 
        Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", "Yes"); 
        IEUtil.clickWindowUntilGone(wnd, dialog); 
    } 
    
    public void no() throws Exception{ 
        Wnd wnd = IEUtil.waitDialogWnd(dialog, "Button", "No"); 
        IEUtil.clickWindowUntilGone(wnd, dialog); 
    } 

然后，修改IEUtil.java
保持原有方法waitDialogWnd()不变，新增方法waitDialogWndEx()

    protected static Wnd waitDialogWndEx(final Wnd startWnd, final String windowClassName, final String[] windowText) throws Exception { 
        class WindowReady implements Ready { 
            Wnd wnd; 
            
            public boolean isReady() throws Exception { 
            int i = 0; 
            while (i < windowText.length){ 
            wnd = Wnd.findWindowEx(startWnd, windowClassName, windowText[i++]); 
            if (wnd.isWindow()) 
            break; 
            } 
                debugWnd(wnd, "findByStartWind"); 
                return wnd.isWindow(); 
            } 

            public String getNotReadyReason() { 
            StringBuffer reason = new StringBuffer(); 
            reason.append("Could not find Dialog with windowClassName=" + windowClassName + " windowText="); 
            reason.append(windowText[0]); 
            for (int i = 1; i < windowText.length; i++){ 
                  reason.append("," + windowText[i]); 
            } 
            return reason.toString(); 
            } 

            public Wnd wnd() { 
                return wnd; 
            } 
        } 
        WindowReady windowReady = new WindowReady(); 
        new WaiterImpl(10000, 200).waitUntil(windowReady); 
        Wnd wnd = windowReady.wnd(); 
        return wnd; 
    }

做完这些工作后，重新编译打包，输出一个新的watij.jar替换原有watij.jar

最后，新建一个自定义工程，在引用库那里导入watij.jar，创建主类HandleDialog.java

import watij.runtime.ie.IE; 
import watij.runtime.ie.IEConfirmDialog; 
import watij.time.TimeException; 
import watij.time.Timer; 
import watij.time.TimerImpl; 
import com.jniwrapper.win32.ui.Wnd; 

public class HandleDialog { 
    static final int TIMEOUT_POPUP = 20000; 
    static final int WAIT_INCREMENT = 200; 
    static final String DIALOG_CLASSNAME = "#32770"; 
    static final String IE_CLASSNAME = "IEFrame"; 
    static final String[] windowTitle = {"Microsoft Internet Explorer","Windows Internet Explorer", 
"Internet Explorer","Explorer 用户提示","添加到收藏夹","文件下载","File Download","安全警报","Security Alert"}; 
    private IE ie; 

  public static void main(String[] args) { 
    this.ie = new IE(); 
    this.ie.visible(false); 

    // 新建线程，处理弹出的对话框 
    handlePopupDialog(this.ie); 
    // 加载网页 
    this.ie.start("http://www.example.com"); 

  } 
  
  // handle the popup Dialog 
  private void handlePopupDialog(final IE ie){ 
   // 新建线程守护IE，观察IE发生的事件 
    new Thread( new Runnable(){ 
       public void run(){ 
           try{ 
               // 该线程等待IE出现 
                 ie.waitUntilExists(); 
               if (ie.exists()){ 
                   class DialogReady implements MyReady { 
                       Wnd wnd = null; 
                       boolean ret = false; 
                       public boolean isReady() throws Exception { 
                           return ret; // 如果ret为true，结束等待；否则继续等待 
                           } 
                       public String getNotReadyReason() { 
                           return "there is no popup dialog"; 
                       } 
                       public boolean actionWhenWait() throws Exception { 
                           ret = false; 
                           // 每次等待时都要判断IE是否还存在，因为IE有可能中途被关掉 
                               if(ie.exists()){ 
                               int i = 0; 
                               while (i < windowTitle.length){ 
                                   wnd = Wnd.findWindow(DIALOG_CLASSNAME,windowTitle[i++]); 
                                   // 如果IE弹出对话框 
                                         if (wnd.isWindow()){ 
                                       IEConfirmDialog confirm = new IEConfirmDialog(wnd,ie); 
                                       String dialogTitle = confirm.title(); 
                                       // 如果弹窗是“文件下载”对话框，则关掉对话框；如果关掉对话框后IE为空页面，就关掉IE 
                                       if (dialogTitle.contains("文件下载") || dialogTitle.contains("File Download")){ 
//                                         confirm.cancel(); 
                                           confirm.quit(); 
                                           System.out.println(Thread.currentThread().getName() 
    + "--->关掉“文件下载”对话框。"); 
                                           if (ie.getWebBrowser().getLocationURL().equalsIgnoreCase(Blank_URL)){ 
                                               ie.close(); 
                                               System.out.println(Thread.currentThread().getName() 
    + "--->页面为空，关掉IE。"); 
                                           } 
                                       } else if (dialogTitle.contains("安全警报") || dialogTitle.contains("Security Alert")){ 
//                                         confirm.cancel(); 
                                           confirm.ok(); 
                                           System.out.println(Thread.currentThread().getName() 
    + "--->发生安全警报，点“确定”继续。"); 
                                      } else{ // 如果是其他对话框，则直接关掉弹窗 
//                                         confirm.ok(); 
                                           confirm.quit(); 
                                           System.out.println(Thread.currentThread().getName() 
    + "--->关掉对话框。"); 
                                      } 
                                      ret = true; // 处理完弹窗，设置“结束等待”标志 
                                        } 
                              } 
                          }else{ 
                              ret = true; // IE已不存在，设置“结束等待”标志 
                              } 
                          return ret; 
                      } 
                  } 
                  // 设置等待时间 
                     final WaitReady waitReady = new WaitReady(TIMEOUT_POPUP, WAIT_INCREMENT); 
                  waitReady.waitUntil( new DialogReady() ); 
               } 
           }catch(Exception e){ 
               System.println(e + getClass().getName()+ "handlePopupDialog()"); 
           } 
       } 
    }).start(); 
} 
    
  public class WaitReady { 
    long timeout; 
    long waitIncrement; 
    Timer timer; 
    public WaitReady(long paramTimeout, long paramWaitIncrement) { 
        timeout = paramTimeout; 
        waitIncrement = paramWaitIncrement; 
    } 
    public boolean waitUntil(MyReady ready) throws Exception { 
        timer = new TimerImpl(); 
        while (!ready.isReady()) { 
            if (timer.isElapsed(timeout)) { 
                System.out.println("Timeout exceeded.  Reason= " + ready.getNotReadyReason()); 
                actionAfterTimeout(); 
                return false; 
            } 
            try { 
//              controller.handleOutput("  线程：" + Thread.currentThread().getName() + "正在等待"); 
                Thread.sleep(waitIncrement); 
                ready.actionWhenWait(); 
            } catch (InterruptedException e) { 
                throw new TimeException(e); 
            } 
        } 
        return true; 
    } 
    public void actionAfterTimeout() throws Exception { 
    
    } 
    public Timer getTimer(){ 
        return timer; 
    } 
} 

  public interface MyReady { 
    boolean isReady() throws Exception; 

    String getNotReadyReason(); 

    boolean actionWhenWait() throws Exception; 
  } 
  
} 

    目前，经过我修改的Watij还是存在一些不足，由于弹窗标题和按钮文字都被固化在程序里，如果遇到其他特殊的弹窗就无法处理了。希望今后能够增强Watij的灵活性，使得不管是哪个版本的IE，什么样的弹窗都能处理。