1/*
2 * Copyright (C) 2010 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
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 DecodedDataDocumentParser_h
27#define DecodedDataDocumentParser_h
28
29#include "core/dom/DocumentParser.h"
30#include "wtf/OwnPtr.h"
31
32namespace blink {
33class TextResourceDecoder;
34
35class DecodedDataDocumentParser : public DocumentParser {
36public:
37    // Only used by the XMLDocumentParser to communicate back to
38    // XMLHttpRequest if the responseXML was well formed.
39    virtual bool wellFormed() const { return true; }
40
41    // The below functions are used by DocumentWriter (the loader).
42    virtual void appendBytes(const char* bytes, size_t length) OVERRIDE;
43    virtual void flush() OVERRIDE;
44    virtual bool needsDecoder() const OVERRIDE FINAL { return m_needsDecoder; }
45    virtual void setDecoder(PassOwnPtr<TextResourceDecoder>) OVERRIDE;
46    virtual TextResourceDecoder* decoder() OVERRIDE FINAL;
47
48    PassOwnPtr<TextResourceDecoder> takeDecoder();
49
50protected:
51    explicit DecodedDataDocumentParser(Document&);
52    virtual ~DecodedDataDocumentParser();
53
54private:
55    // append is used by DocumentWriter::replaceDocumentWhileExecutingJavaScriptURL.
56    virtual void append(PassRefPtr<StringImpl>) = 0;
57
58    void updateDocument(String& decodedData);
59
60    bool m_needsDecoder;
61    OwnPtr<TextResourceDecoder> m_decoder;
62};
63
64}
65
66#endif // DecodedDataDocumentParser_h
67