/*
* Copyright (C) 2013 Google Inc. All rights reserved.
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* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
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* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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*/
#ifndef HTMLImportLoader_h
#define HTMLImportLoader_h
#include "core/fetch/RawResource.h"
#include "core/fetch/ResourceOwner.h"
#include "wtf/Vector.h"
namespace WebCore {
class Document;
class DocumentWriter;
class HTMLImportChild;
//
// Owning imported Document lifetime. It also implements ResourceClient through ResourceOwner
// to feed fetched bytes to the DocumentWriter of the imported document.
// HTMLImportLoader is owned by and shared between HTMLImportChild.
//
//
class HTMLImportLoader FINAL : public RefCounted<HTMLImportLoader>, public ResourceOwner<RawResource> {
public:
enum State {
StateLoading,
StateWritten,
StateParsed,
StateLoaded,
StateError
};
static PassRefPtr<HTMLImportLoader> create()
{
return adoptRef(new HTMLImportLoader());
}
virtual ~HTMLImportLoader();
Document* document() const { return m_importedDocument.get(); }
Document* importedDocument() const;
void addImport(HTMLImportChild*);
void removeImport(HTMLImportChild*);
bool isDone() const { return m_state == StateLoaded || m_state == StateError; }
bool hasError() const { return m_state == StateError; }
void startLoading(const ResourcePtr<RawResource>&);
void didFinishParsing();
void didRemoveAllPendingStylesheet();
bool isOwnedBy(const HTMLImportChild* import) const { return m_imports[0] == import; }
private:
HTMLImportLoader();
// RawResourceClient
virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE;
virtual void dataReceived(Resource*, const char* data, int length) OVERRIDE;
virtual void notifyFinished(Resource*) OVERRIDE;
State startWritingAndParsing(const ResourceResponse&);
State finishWriting();
State finishParsing();
State finishLoading();
void setState(State);
void didFinishLoading();
bool hasPendingResources() const;
Vector<HTMLImportChild*> m_imports;
State m_state;
RefPtr<Document> m_importedDocument;
RefPtr<DocumentWriter> m_writer;
};
} // namespace WebCore
#endif // HTMLImportLoader_h