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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All Rights Reserved.
      3  * Copyright (C) 2009, 2011 Google Inc. All Rights Reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  *
     26  */
     27 
     28 #ifndef WorkerScriptLoader_h
     29 #define WorkerScriptLoader_h
     30 
     31 #if ENABLE(WORKERS)
     32 
     33 #include "KURL.h"
     34 #include "ResourceRequest.h"
     35 #include "ResourceResponse.h"
     36 #include "TextResourceDecoder.h"
     37 #include "ThreadableLoader.h"
     38 #include "ThreadableLoaderClient.h"
     39 
     40 namespace WebCore {
     41 
     42     class ScriptExecutionContext;
     43     class WorkerScriptLoaderClient;
     44 
     45     class WorkerScriptLoader : public ThreadableLoaderClient {
     46     public:
     47         explicit WorkerScriptLoader(ResourceRequestBase::TargetType);
     48 
     49         void loadSynchronously(ScriptExecutionContext*, const KURL&, CrossOriginRequestPolicy);
     50         void loadAsynchronously(ScriptExecutionContext*, const KURL&, CrossOriginRequestPolicy, WorkerScriptLoaderClient*);
     51 
     52         void notifyError();
     53 
     54         const String& script() const { return m_script; }
     55         const KURL& url() const { return m_url; }
     56         const KURL& responseURL() const;
     57         bool failed() const { return m_failed; }
     58         unsigned long identifier() const { return m_identifier; }
     59 
     60         virtual void didReceiveResponse(const ResourceResponse&);
     61         virtual void didReceiveData(const char* data, int dataLength);
     62         virtual void didFinishLoading(unsigned long identifier, double);
     63         virtual void didFail(const ResourceError&);
     64         virtual void didFailRedirectCheck();
     65         virtual void didReceiveAuthenticationCancellation(const ResourceResponse&);
     66 
     67     private:
     68         PassOwnPtr<ResourceRequest> createResourceRequest();
     69         void notifyFinished();
     70 
     71         WorkerScriptLoaderClient* m_client;
     72         RefPtr<ThreadableLoader> m_threadableLoader;
     73         String m_responseEncoding;
     74         RefPtr<TextResourceDecoder> m_decoder;
     75         String m_script;
     76         KURL m_url;
     77         KURL m_responseURL;
     78         bool m_failed;
     79         unsigned long m_identifier;
     80         ResourceRequestBase::TargetType m_targetType;
     81     };
     82 
     83 } // namespace WebCore
     84 
     85 #endif // ENABLE(WORKERS)
     86 
     87 #endif // WorkerScriptLoader_h
     88