1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#pragma once
#include "CachedResource.h"
#include "CachedResourceClient.h"
#include "CachedResourceHandle.h"
#include "LinkLoaderClient.h"
#include "LinkRelAttribute.h"
#include "ReferrerPolicy.h"
namespace WebCore {
class LinkLoader;
}
namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::LinkLoader> : std::true_type { };
}
namespace WebCore {
class Document;
class LinkPreloadResourceClient;
struct LinkLoadParameters {
LinkRelAttribute relAttribute;
URL href;
String as;
String media;
String mimeType;
String crossOrigin;
String imageSrcSet;
String imageSizes;
String nonce;
ReferrerPolicy referrerPolicy { ReferrerPolicy::EmptyString };
RequestPriority fetchPriority { RequestPriority::Auto };
};
class LinkLoader : public CachedResourceClient {
public:
explicit LinkLoader(LinkLoaderClient&);
virtual ~LinkLoader();
void loadLink(const LinkLoadParameters&, Document&);
enum class ShouldLog : bool { No, Yes };
static std::optional<CachedResource::Type> resourceTypeFromAsAttribute(const String&, Document&, ShouldLog = ShouldLog::No);
enum class MediaAttributeCheck { MediaAttributeEmpty, MediaAttributeNotEmpty, SkipMediaAttributeCheck };
static void loadLinksFromHeader(const String& headerValue, const URL& baseURL, Document&, MediaAttributeCheck);
static bool isSupportedType(CachedResource::Type, const String& mimeType, Document&);
void triggerEvents(const CachedResource&);
void triggerError();
void cancelLoad();
private:
void notifyFinished(CachedResource&, const NetworkLoadMetrics&, LoadWillContinueInAnotherProcess) override;
static void preconnectIfNeeded(const LinkLoadParameters&, Document&);
static std::unique_ptr<LinkPreloadResourceClient> preloadIfNeeded(const LinkLoadParameters&, Document&, LinkLoader*);
void prefetchIfNeeded(const LinkLoadParameters&, Document&);
WeakRef<LinkLoaderClient> m_client;
CachedResourceHandle<CachedResource> m_cachedLinkResource;
std::unique_ptr<LinkPreloadResourceClient> m_preloadResourceClient;
};
}
|
