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      1 /*
      2  * Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      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  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef MainResourceLoader_h
     30 #define MainResourceLoader_h
     31 
     32 #include "FrameLoaderTypes.h"
     33 #include "ResourceLoader.h"
     34 #include "SubstituteData.h"
     35 #include <wtf/Forward.h>
     36 
     37 #if HAVE(RUNLOOP_TIMER)
     38 #include "RunLoopTimer.h"
     39 #else
     40 #include "Timer.h"
     41 #endif
     42 
     43 namespace WebCore {
     44 
     45     class FormState;
     46     class ResourceRequest;
     47 
     48     class MainResourceLoader : public ResourceLoader {
     49     public:
     50         static PassRefPtr<MainResourceLoader> create(Frame*);
     51         virtual ~MainResourceLoader();
     52 
     53         virtual bool load(const ResourceRequest&, const SubstituteData&);
     54         virtual void addData(const char*, int, bool allAtOnce);
     55 
     56         virtual void setDefersLoading(bool);
     57 
     58         virtual void willSendRequest(ResourceRequest&, const ResourceResponse& redirectResponse);
     59         virtual void didReceiveResponse(const ResourceResponse&);
     60         virtual void didReceiveData(const char*, int, long long encodedDataLength, bool allAtOnce);
     61         virtual void didFinishLoading(double finishTime);
     62         virtual void didFail(const ResourceError&);
     63 
     64 #if HAVE(RUNLOOP_TIMER)
     65         typedef RunLoopTimer<MainResourceLoader> MainResourceLoaderTimer;
     66 #else
     67         typedef Timer<MainResourceLoader> MainResourceLoaderTimer;
     68 #endif
     69 
     70         void handleDataLoadNow(MainResourceLoaderTimer*);
     71 
     72         bool isLoadingMultipartContent() const { return m_loadingMultipartContent; }
     73 
     74     private:
     75         MainResourceLoader(Frame*);
     76 
     77         virtual void didCancel(const ResourceError&);
     78 
     79         bool loadNow(ResourceRequest&);
     80 
     81         void handleEmptyLoad(const KURL&, bool forURLScheme);
     82         void handleDataLoadSoon(const ResourceRequest& r);
     83 
     84         void startDataLoadTimer();
     85         void handleDataLoad(ResourceRequest&);
     86 
     87         void receivedError(const ResourceError&);
     88         ResourceError interruptionForPolicyChangeError() const;
     89         void stopLoadingForPolicyChange();
     90         bool isPostOrRedirectAfterPost(const ResourceRequest& newRequest, const ResourceResponse& redirectResponse);
     91 
     92         static void callContinueAfterNavigationPolicy(void*, const ResourceRequest&, PassRefPtr<FormState>, bool shouldContinue);
     93         void continueAfterNavigationPolicy(const ResourceRequest&, bool shouldContinue);
     94 
     95         static void callContinueAfterContentPolicy(void*, PolicyAction);
     96         void continueAfterContentPolicy(PolicyAction);
     97         void continueAfterContentPolicy(PolicyAction, const ResourceResponse&);
     98 
     99 #if PLATFORM(QT)
    100         void substituteMIMETypeFromPluginDatabase(const ResourceResponse&);
    101 #endif
    102 
    103         ResourceRequest m_initialRequest;
    104         SubstituteData m_substituteData;
    105 
    106         MainResourceLoaderTimer m_dataLoadTimer;
    107 
    108         bool m_loadingMultipartContent;
    109         bool m_waitingForContentPolicy;
    110         double m_timeOfLastDataReceived;
    111     };
    112 
    113 }
    114 
    115 #endif
    116