htmlunit-user

[Htmlunit-user] help using host objects

[Marc A. D. <ma...@ru...>]

Hi.
I'm new to htmlunit.  I'm trying to use the host objects provided with =
it to simulate browser behavior, but I'm having a lot of trouble.  In =
particular:

        Window window =3D new Window();
        URL url =3D new URL("http://someplace.com/something.html");
        DomNode domNode =3D new HtmlPage(url, new =
StringWebResponse(stringForURL(url)), new TopLevelWindow("WebWindow",
            new WebClient()));
        window.setDomNode(domNode);

        Context jsContext =3D Context.enter();
        Scriptable jsScope =3D jsContext.initStandardObjects();
        jsScope.setParentScope(window);  // window is the scope of =
execution

        Script javascript =3D jsContext.compileString("alert('hoho');", =
url.toString(), 1, null);
        javascript.exec(jsContext, jsScope);

This little bit of code is supposed to execute the "alert('hoho');" code =
in the second to last line, but instead it results in an infinite loop.  =
Removing the jsScope.setParentScope(window) line results (obviously) in =
the alert function call being undefined, which is no good either.  =
Removing this line and substituting "Scriptable jsScope =3D =
jsContext.initStandardObjects(window);" immediately above it results in =
the same infinite loop.

What am I doing wrong here?


Many thanks for any help,
Marc

Re: [Htmlunit-user] help using host objects

[Marc G. <mgu...@ya...>]

Hi,

can you first explain what you want to do. The javadoc says to javascript package: "users of HtmlUnit shouldn't need 
anything in this package" as it is used internally to execute the javascript found in the html pages.

Marc.

Marc A. Donis wrote:
> Hi.
> I'm new to htmlunit.  I'm trying to use the host objects provided with 
> it to simulate browser behavior, but I'm having a lot of trouble.  In 
> particular:
>  
>         Window window = new Window();
>         URL url = new URL("http://someplace.com/something.html");
>         DomNode domNode = new HtmlPage(url, new 
> StringWebResponse(stringForURL(url)), new TopLevelWindow("WebWindow",
>             new WebClient()));
>         window.setDomNode(domNode);
>  
>         Context jsContext = Context.enter();
>         Scriptable jsScope = jsContext.initStandardObjects();
>         jsScope.setParentScope(window);  // window is the scope of execution
>  
>         Script javascript = jsContext.compileString("alert('hoho');", 
> url.toString(), 1, null);
>         javascript.exec(jsContext, jsScope);
> This little bit of code is supposed to execute the "alert('hoho');" code 
> in the second to last line, but instead it results in an infinite loop.  
> Removing the jsScope.setParentScope(window) line results (obviously) in 
> the alert function call being undefined, which is no good either.  
> Removing this line and substituting "Scriptable jsScope = 
> jsContext.initStandardObjects(window);" immediately above it results in 
> the same infinite loop.
>  
> What am I doing wrong here?
>  
>  
> Many thanks for any help,
> Marc
>