1/*
2 * Copyright (C) 2008 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#ifndef CachedScriptSourceProvider_h
27#define CachedScriptSourceProvider_h
28
29#include "CachedResourceClient.h"
30#include "CachedResourceHandle.h"
31#include "CachedScript.h"
32#include "JSDOMBinding.h" // for stringToUString
33#include "ScriptSourceProvider.h"
34#include <parser/SourceCode.h>
35
36namespace WebCore {
37
38    class CachedScriptSourceProvider : public ScriptSourceProvider, public CachedResourceClient {
39        WTF_MAKE_FAST_ALLOCATED;
40    public:
41        static PassRefPtr<CachedScriptSourceProvider> create(CachedScript* cachedScript) { return adoptRef(new CachedScriptSourceProvider(cachedScript)); }
42
43        virtual ~CachedScriptSourceProvider()
44        {
45            m_cachedScript->removeClient(this);
46        }
47
48        JSC::UString getRange(int start, int end) const { return JSC::UString(m_cachedScript->script().characters() + start, end - start); }
49        const UChar* data() const { return m_cachedScript->script().characters(); }
50        int length() const { return m_cachedScript->script().length(); }
51        const String& source() const { return m_cachedScript->script(); }
52
53        virtual void cacheSizeChanged(int delta)
54        {
55            m_cachedScript->sourceProviderCacheSizeChanged(delta);
56        }
57
58    private:
59        CachedScriptSourceProvider(CachedScript* cachedScript)
60            : ScriptSourceProvider(stringToUString(cachedScript->response().url()), cachedScript->sourceProviderCache())
61            , m_cachedScript(cachedScript)
62        {
63            m_cachedScript->addClient(this);
64        }
65
66        CachedResourceHandle<CachedScript> m_cachedScript;
67    };
68
69    inline JSC::SourceCode makeSource(CachedScript* cachedScript)
70    {
71        return JSC::SourceCode(CachedScriptSourceProvider::create(cachedScript));
72    }
73
74} // namespace WebCore
75
76#endif // CachedScriptSourceProvider_h
77