Re: [Htmlunit-user] Executing JavaScript 3

[<Gou...@ne...>]

Hello all.

Here are some more comments and news about javascript support.

>2: WindowOpen does not work (at least when JavaScript tries to set focus to the newely opened window).

window.open works perfect except it is called with url like 'about:blank' or empty string. This causes that window is not initialized than, and does not have a script object. This problem seems to affect also HtmlFrame objects: if one of the frames in the frameset is initialized with 'about:blank', the whole frameset fails to initialize. I'm afraid it will cost a lot of changes in htmlunit to fix it.

>3: I have a following line in JavaScript:
>parent.<frame_name>.location.href=<some_value>;
>this would produce following method calls stack (all in package com.gargoylesoftware.htmlunit.javascript.host):
>jsGet_parent in Window
>a call to get a frame by name - fails
>jsGet_location in Window
>jsGet_href in Location
>
>All jsGet_XXX methods are doing right - I'm pretty sure.
>I found out that the call to get frames is handled by
>public Object get( final String name, final Scriptable start )
>method in com.gargoylesoftware.htmlunit.javascript.SimpleScriptable, and it would even return a requested frame, if it would be set as a property.
>But it is not set: I have modified the get method to print out some debug infos and found out, that SimpleScriptable stores all declared JavaScript functions as properties, but does not contain properties for frames.
>
>I hope it is not much work to do something similar with frames as it is done with JavaScript functions. I would be obliged if someone would give me any idea what exactly should be done to fix it!

In few words: I needed to access frames by name from JavaScript.

Now I have a solution: it might not fit to the htmlunit API, but it works.
I have modified the com.gargoylesoftware.htmlunit.javascript.host.Window object (see attachment) and marked all changes with >HACK ... <HACK. This IS a hack in this state, cause it might produce some unexpected results for example in case reserved properties names (like 'parent' or 'document') were used as frames names. I would be obliged if someone would review this code and give a feedback.

Best regards

Alexei Goussev

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