Home | History | Annotate | Download | only in dom
      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 
     32 namespace WebCore {
     33 class TextResourceDecoder;
     34 
     35 class DecodedDataDocumentParser : public DocumentParser {
     36 public:
     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 
     50 protected:
     51     explicit DecodedDataDocumentParser(Document&);
     52     virtual ~DecodedDataDocumentParser();
     53 
     54 private:
     55     // append is used by DocumentWriter::replaceDocument.
     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