Question

我在SO上发现此代码会自动关闭确认对话框，但它在Firefox中无效。

问题是var windowButton = new WindowsEnumerator().GetChildWindows(window.Hwnd, w => w.ClassName == "Button" && new WinButton(w.Hwnd).Title == "OK").FirstOrDefault();

始终返回null。还有另一种方法可以在firefox中获取对话框按钮的句柄吗？

public class OKDialogHandler : BaseDialogHandler {

public override bool HandleDialog(Window window) {

    var button = GetOKButton(window);
    if (button != null) {
        button.Click();
        return true;
    } else {
        return false;
    }
}

public override bool CanHandleDialog(Window window) {
    return GetOKButton(window) != null;
}

private WinButton GetOKButton(Window window) {
    var windowButton = new WindowsEnumerator().GetChildWindows(window.Hwnd, w => w.ClassName == "Button" 
        && new WinButton(w.Hwnd).Title == "OK").FirstOrDefault();


    if (windowButton == null)
        return null;
    else
        return new WinButton(windowButton.Hwnd);
 }
}

Answer 1

Firefox警报（）对话框中的控件不可枚举。也就是说，它们不像IE中那样存在于单独的窗口中。解决此问题的最佳方法是创建一个实现DialogHandler的新IDialogHandler类。在构造函数中，您可以传入对话框出现的Firefox实例，您可以使用以下代码将JavaScript发送到Firefox以操作对话框：

FFDocument nativeDoc = firefox.NativeDocument as FFDocument;

// ClientPort has several WriteAndRead... functions, 
// and takes a variable list of arguments for the script 
// to be executed.
nativeDoc.ClientPort.WriteAndRead(script);

您可以使用下面的JavaScript点击警告（）或确认（）对话框上的“确定”和“取消”按钮。

private const string DialogIsConfirmScript = "typeof getWindows()[{0}].document.documentElement.getButton('accept') !== 'undefined' && typeof getWindows()[{0}].document.documentElement.getButton('cancel') !== 'undefined';";
private const string DialogIsAlertScript = "typeof getWindows()[{0}].document.documentElement.getButton('accept') !== 'undefined' && typeof getWindows()[{0}].document.documentElement.getButton('cancel') !== 'undefined' && getWindows()[{0}].document.documentElement.getButton('cancel').hidden;";
private const string ClickCancelButtonScript = "getWindows()[{0}].document.documentElement.getButton('cancel').click()";
private const string ClickOKButtonScript = "getWindows()[{0}].document.documentElement.getButton('accept').click()";
private const string WindowClassName = "MozillaDialogClass";

更完整的实现，包含公共接口中的本机IE alert（）和confirm（）处理，并在http://pastebin.com/ZapXr9Yf提供了Firefox处理

Firefox中的WatiN Handle Confirm对话框

1 个答案: