Re: [Rubycocoa-talk] subclassing, hit a wall

[Allison N. <dem...@ma...>]

Steve,

Just to clarify, you're trying to subclass NSURLProtocol, and you want  
to override/create functions that are to be called from Objective C,  
Is that right?

Alli

Le 14 févr. 09 à 18:02, Steve Conover a écrit :

> Hi everyone.
>
> I'm trying to make my own URL Protocol.  I've been marching along
> pretty well but have hit a hang problem - if you can spot the problem
> I'd appreciate help, but I might be even more interested in what you'd
> do to debug the problem - I don't even know what to try next.
>
> It seems that I've defined startLoading properly - the framework
> complains if it's not there, or the method signature is incorrect.
> canonicalRequestForRequest gets called and then the whole operation
> hangs - startLoading never gets invoked.
>
>
> My class:
>
> require 'osx/cocoa'
>
> OSX.require_framework 'WebKit'
>
> class LocalProtocol < OSX::NSURLProtocol
>
>  objc_class_method(:canInitWithRequest_, '@:@@')
>  def self.canInitWithRequest(ns_url_request)
>    p" canInitWithRequest"
>    0
>  end
>
>  objc_class_method(:canonicalRequestForRequest_, '@:@@')
>  def self.canonicalRequestForRequest(ns_url_request)
>    p"canonicalRequestForRequest #{ns_url_request.inspect}"
>    ns_url_request
>  end
>
>  def startLoading
>    p "startLoading"
>  end
>
>  def stopLoading
>    p "stopLoading"
>  end
>
> end
>
>
>
> Calling code:
>
>    protocol = LocalProtocol.alloc
>
>    OSX::NSURLProtocol.registerClass(LocalProtocol)
>
>    url = OSX::NSURL.alloc.initWithString("local://foo")
>    url_request = OSX::NSURLRequest.requestWithURL(url)
>    url_response = OSX::NSURLResponse.alloc
>    response =  
> OSX 
> ::NSURLConnection 
> .sendSynchronousRequest_returningResponse_error(url_request,
> url_response, nil)
>    str = "." * response.length
>    response.getBytes_length(str)
>
>
> Console result:
>
> " canInitWithRequest"
> " canInitWithRequest"
> " canInitWithRequest"
> "canonicalRequestForRequest #<OSX::NSURLRequest:0x8beeee
> class='NSURLRequest' id=0x2003e50>"
> <HANGS HERE FOREVER>
>
>
> Regards,
> Steve
>
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