1/*
2 * Copyright (C) 2016 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "CachedResourceClient.h"
29#include "CachedResourceHandle.h"
30#include "CachedScript.h"
31#include "LoadableScript.h"
32#include <wtf/TypeCasts.h>
33
34namespace WebCore {
35
36// A CachedResourceHandle alone does not prevent the underlying CachedResource
37// from purging its data buffer. This class holds a client until this class is
38// destroyed in order to guarantee that the data buffer will not be purged.
39class LoadableClassicScript final : public LoadableScript, private CachedResourceClient {
40public:
41 virtual ~LoadableClassicScript();
42
43 static Ref<LoadableClassicScript> create(const String& nonce, const String& integrity, const String& crossOriginMode, const String& charset, const AtomicString& initiatorName, bool isInUserAgentShadowTree);
44 bool isLoaded() const final;
45 Optional<Error> error() const final;
46 bool wasCanceled() const final;
47
48 CachedScript& cachedScript() { return *m_cachedScript; }
49
50 bool isClassicScript() const final { return true; }
51 bool isModuleScript() const final { return false; }
52
53 void execute(ScriptElement&) final;
54
55 bool load(Document&, const URL&);
56
57private:
58 LoadableClassicScript(const String& nonce, const String& integrity, const String& crossOriginMode, const String& charset, const AtomicString& initiatorName, bool isInUserAgentShadowTree)
59 : LoadableScript(nonce, crossOriginMode, charset, initiatorName, isInUserAgentShadowTree)
60 , m_integrity(integrity)
61 {
62 }
63
64 void notifyFinished(CachedResource&) final;
65
66 CachedResourceHandle<CachedScript> m_cachedScript { };
67 Optional<Error> m_error { WTF::nullopt };
68 String m_integrity;
69};
70
71}
72
73SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::LoadableClassicScript)
74 static bool isType(const WebCore::LoadableScript& script) { return script.isClassicScript(); }
75SPECIALIZE_TYPE_TRAITS_END()
76