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
43namespace 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