1/*
2 * Copyright (C) 2013 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef ResourceLoaderHost_h
32#define ResourceLoaderHost_h
33
34#include "platform/network/ResourceError.h"
35#include "platform/network/ResourceLoadPriority.h"
36
37namespace WebCore {
38
39class Resource;
40class ResourceFetcher;
41class Frame;
42class ResourceLoader;
43class ResourceRequest;
44class ResourceResponse;
45
46struct FetchInitiatorInfo;
47struct ResourceLoaderOptions;
48
49class ResourceLoaderHost {
50public:
51    void ref() { refResourceLoaderHost(); }
52    void deref() { derefResourceLoaderHost(); }
53
54    virtual void incrementRequestCount(const Resource*) = 0;
55    virtual void decrementRequestCount(const Resource*) = 0;
56    virtual void didLoadResource(Resource*) = 0;
57    virtual void redirectReceived(Resource*, const ResourceResponse&) = 0;
58
59    virtual void didFinishLoading(const Resource*, double finishTime, const ResourceLoaderOptions&) = 0;
60    virtual void didChangeLoadingPriority(const Resource*, ResourceLoadPriority) = 0;
61    virtual void didFailLoading(const Resource*, const ResourceError&, const ResourceLoaderOptions&) = 0;
62
63    virtual void willSendRequest(unsigned long identifier, ResourceRequest&, const ResourceResponse& redirectResponse, const ResourceLoaderOptions&) = 0;
64    virtual void didReceiveResponse(const Resource*, const ResourceResponse&, const ResourceLoaderOptions&) = 0;
65    virtual void didReceiveData(const Resource*, const char* data, int dataLength, int encodedDataLength, const ResourceLoaderOptions&) = 0;
66    virtual void didDownloadData(const Resource*, int dataLength, int encodedDataLength, const ResourceLoaderOptions&) = 0;
67
68    virtual void subresourceLoaderFinishedLoadingOnePart(ResourceLoader*) = 0;
69    virtual void didInitializeResourceLoader(ResourceLoader*) = 0;
70    virtual void willTerminateResourceLoader(ResourceLoader*) = 0;
71    virtual void willStartLoadingResource(ResourceRequest&) = 0;
72
73    virtual bool shouldRequest(Resource*, const ResourceRequest&, const ResourceLoaderOptions&) = 0;
74    virtual bool defersLoading() const = 0;
75    virtual bool isLoadedBy(ResourceLoaderHost*) const = 0;
76
77    virtual void refResourceLoaderHost() = 0;
78    virtual void derefResourceLoaderHost() = 0;
79};
80
81}
82
83#endif // ResourceLoaderHost_h
84