[Rubycocoa-talk] subclassing, hit a wall

[Steve C. <sco...@gm...>]

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