Question

我想禁用所有js alert.This代码不工作gecko 45

geckoWebBrowser1.JavascriptError += (sender, error) => {
    GeckoWebBrowser browser = geckoWebBrowser1;
    string text = "window.alert = function(){};";
    using (AutoJSContext context = new AutoJSContext(browser.Window.JSContext)) {
        string result;
        //toolStripLabel1.Text = "was is loaded?";

        context.EvaluateScript(text, (nsISupports)browser.Window.DomWindow, out result);
    }
};

Answer 1

如果要禁用所有警报，则需要实现自己的nsIPromptService2，您将覆盖警报发生时调用的方法。

public class FilteredPromptService : nsIPromptService2, nsIPrompt
{
        public void Alert(string dialogTitle, string text)
        {
           //do nothing, 
        }
        //and so on for other alerts/prompts
 }

请记住，您还需要在初始化引擎后通过调用注册：

PromptFactory.PromptServiceCreator = () => new FilteredPromptService();

Answer 2

这是我必须添加的完整课程。这是我为GeckoFX 45找到的唯一可行解决方案。

Xpcom.Initialize("Firefox64");
PromptFactory.PromptServiceCreator = () => new FilteredPromptService();

public class FilteredPromptService : nsIPromptService2, nsIPrompt
{   
    void nsIPromptService2.Alert(nsIDOMWindow aParent, string aDialogTitle, string aText)
    {

    }

    void nsIPromptService2.AlertCheck(nsIDOMWindow aParent, string aDialogTitle, string aText, string aCheckMsg, ref bool aCheckState)
    {

    }

    bool nsIPromptService2.Confirm(nsIDOMWindow aParent, string aDialogTitle, string aText)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService2.ConfirmCheck(nsIDOMWindow aParent, string aDialogTitle, string aText, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    int nsIPromptService2.ConfirmEx(nsIDOMWindow aParent, string aDialogTitle, string aText, uint aButtonFlags, string aButton0Title, string aButton1Title, string aButton2Title, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService2.Prompt(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aValue, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService2.PromptUsernameAndPassword(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aUsername, ref string aPassword, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();   
    }

    bool nsIPromptService2.PromptPassword(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aPassword, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService2.Select(nsIDOMWindow aParent, string aDialogTitle, string aText, uint aCount, IntPtr[] aSelectList, ref int aOutSelection)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService2.PromptAuth(nsIDOMWindow aParent, nsIChannel aChannel, uint level, nsIAuthInformation authInfo, string checkboxLabel, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    nsICancelable nsIPromptService2.AsyncPromptAuth(nsIDOMWindow aParent, nsIChannel aChannel, nsIAuthPromptCallback aCallback, nsISupports aContext, uint level, nsIAuthInformation authInfo, string checkboxLabel, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    void nsIPromptService.Alert(nsIDOMWindow aParent, string aDialogTitle, string aText)
    {

    }

    void nsIPromptService.AlertCheck(nsIDOMWindow aParent, string aDialogTitle, string aText, string aCheckMsg, ref bool aCheckState)
    {

    }

    bool nsIPromptService.Confirm(nsIDOMWindow aParent, string aDialogTitle, string aText)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService.ConfirmCheck(nsIDOMWindow aParent, string aDialogTitle, string aText, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    int nsIPromptService.ConfirmEx(nsIDOMWindow aParent, string aDialogTitle, string aText, uint aButtonFlags, string aButton0Title, string aButton1Title, string aButton2Title, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService.Prompt(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aValue, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService.PromptUsernameAndPassword(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aUsername, ref string aPassword, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService.PromptPassword(nsIDOMWindow aParent, string aDialogTitle, string aText, ref string aPassword, string aCheckMsg, ref bool aCheckState)
    {
         throw new NotImplementedException();
    }

    bool nsIPromptService.Select(nsIDOMWindow aParent, string aDialogTitle, string aText, uint aCount, IntPtr[] aSelectList, ref int aOutSelection)
    {
         throw new NotImplementedException();
    }

    void nsIPrompt.Alert(string dialogTitle, string text)
    {

    }

    void nsIPrompt.AlertCheck(string dialogTitle, string text, string checkMsg, ref bool checkValue)
    {

    }

    bool nsIPrompt.Confirm(string dialogTitle, string text)
    {
        throw new NotImplementedException();
    }

    bool nsIPrompt.ConfirmCheck(string dialogTitle, string text, string checkMsg, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    int nsIPrompt.ConfirmEx(string dialogTitle, string text, uint buttonFlags, string button0Title, string button1Title, string button2Title, string checkMsg, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    bool nsIPrompt.Prompt(string dialogTitle, string text, ref string value, string checkMsg, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    bool nsIPrompt.PromptPassword(string dialogTitle, string text, ref string password, string checkMsg, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    bool nsIPrompt.PromptUsernameAndPassword(string dialogTitle, string text, ref string username, ref string password, string checkMsg, ref bool checkValue)
    {
         throw new NotImplementedException();
    }

    bool nsIPrompt.Select(string dialogTitle, string text, uint count, IntPtr[] selectList, ref int outSelection)
    {
         throw new NotImplementedException();
    }
}

禁用JavaScript警报Gecko45 C＃

2 个答案: