Re: Dynamically reset the DOM?

Subject: Re: Dynamically reset the DOM?

From: Geoffrey Garen <email@hidden>

Date: Fri, 2 Dec 2005 15:58:55 -0800

Delivered-to: email@hidden

I've added this in windowScriptObjectAvailable:
[wso setValue:scriptObject forKey:@"scrObject"];

but doing this creates no discernible difference.

Calling setValue:forKey: on wso sets a value in the window object. It's like having the line "scrObject = XXX" inside a <script> tag. However, you pass scrObject directly as an argument to cocoacalling(), so setting the value of scrObject globally is superfluous.

I'm using pre-existing _javascript_, which cannot be modified. 'scrObject' is the name and parameter I have to use.

I don't understand this comment. In the example you provide, the _javascript_ gets created through the following line:

NSString * scriptPreamble = @"<!-- function cocoacalling(scrObject) { scrObject.Score = 1000; document.write('cocoacalling'); return scrObject.Score;}";

I'm suggesting changing that to

NSString * scriptPreamble = @"<!-- function cocoacalling() {alert('cocoacalling got called'}";

and changing

result = [wso callWebScriptMethod:@"cocoacalling" withArguments:args];

result = [wso callWebScriptMethod:@"cocoacalling" withArguments:nil];

and testing whether the function gets called at all. Is that possible?

You might as well log wso at the time as well, just for sanity's sake.

what confuses me is that using loadRequest:pathForResource: will allow me to get a result, "1000", while inserting a new string with loadHTMLString:baseURL: returns me a result(whether or not I have [wso setValue:scriptObject forKey:@"scrObject"]; in the webView:windowScriptObjectAvailable:. In both cases webView:windowScriptObjectAvailable: are called

Is this a typo? I thought the loadHTMLString case did not return a value.

As for loadRequest, that is indeed strange.

what if I generated scratch files in a temporary directory and reload them with loadRequest:pathForResource: ?

Seems like a reasonable work-around, but I'd prefer to get to the bottom of the problem.

Geoff

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Follow-Ups:

Re: Dynamically reset the DOM?
- From: Michael Hanna <email@hidden>
Re: Dynamically reset the DOM?
- From: Michael Hanna <email@hidden>

References:

>Dynamically reset the DOM? (From: Michael Hanna <email@hidden>)

>Re: Dynamically reset the DOM? (From: Geoffrey Garen <email@hidden>)

>Re: Dynamically reset the DOM? (From: Michael Hanna <email@hidden>)