1/*
2 * Copyright (C) 2015-2016 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "CachedModuleScriptLoader.h"
28
29#include "CachedScript.h"
30#include "CachedScriptFetcher.h"
31#include "DOMWrapperWorld.h"
32#include "Frame.h"
33#include "JSDOMBinding.h"
34#include "ModuleFetchParameters.h"
35#include "ResourceLoaderOptions.h"
36#include "ScriptController.h"
37#include "ScriptModuleLoader.h"
38#include "ScriptSourceCode.h"
39
40namespace WebCore {
41
42Ref<CachedModuleScriptLoader> CachedModuleScriptLoader::create(CachedModuleScriptLoaderClient& client, DeferredPromise& promise, CachedScriptFetcher& scriptFetcher, RefPtr<ModuleFetchParameters>&& parameters)
43{
44 return adoptRef(*new CachedModuleScriptLoader(client, promise, scriptFetcher, WTFMove(parameters)));
45}
46
47CachedModuleScriptLoader::CachedModuleScriptLoader(CachedModuleScriptLoaderClient& client, DeferredPromise& promise, CachedScriptFetcher& scriptFetcher, RefPtr<ModuleFetchParameters>&& parameters)
48 : m_client(&client)
49 , m_promise(&promise)
50 , m_scriptFetcher(scriptFetcher)
51 , m_parameters(WTFMove(parameters))
52{
53}
54
55CachedModuleScriptLoader::~CachedModuleScriptLoader()
56{
57 if (m_cachedScript) {
58 m_cachedScript->removeClient(*this);
59 m_cachedScript = nullptr;
60 }
61}
62
63bool CachedModuleScriptLoader::load(Document& document, const URL& sourceURL)
64{
65 ASSERT(!m_cachedScript);
66 String integrity = m_parameters ? m_parameters->integrity() : String { };
67 m_cachedScript = m_scriptFetcher->requestModuleScript(document, sourceURL, WTFMove(integrity));
68 if (!m_cachedScript)
69 return false;
70
71 // If the content is already cached, this immediately calls notifyFinished.
72 m_cachedScript->addClient(*this);
73 return true;
74}
75
76void CachedModuleScriptLoader::notifyFinished(CachedResource& resource)
77{
78 ASSERT_UNUSED(resource, &resource == m_cachedScript);
79 ASSERT(m_cachedScript);
80 ASSERT(m_promise);
81
82 Ref<CachedModuleScriptLoader> protectedThis(*this);
83 if (m_client)
84 m_client->notifyFinished(*this, WTFMove(m_promise));
85
86 // Remove the client after calling notifyFinished to keep the data buffer in
87 // CachedResource alive while notifyFinished processes the resource.
88 m_cachedScript->removeClient(*this);
89 m_cachedScript = nullptr;
90}
91
92}
93