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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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
* distribution.
* * Neither the name of Google Inc. nor the names of its
* 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
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef HTMLImportChild_h
#define HTMLImportChild_h
#include "core/html/HTMLImport.h"
#include "core/html/HTMLImportLoaderClient.h"
#include "core/html/HTMLImportResourceOwner.h"
#include "platform/weborigin/KURL.h"
namespace WebCore {
class HTMLImportLoader;
class HTMLImportChildClient;
//
// An import tree node subclas to encapsulate imported document
// lifecycle. This class is owned by LinkStyle. The actual loading
// is done by HTMLImportLoader, which can be shared among multiple
// HTMLImportChild of same link URL.
//
// HTMLImportChild implements ResourceClient through HTMLImportResourceOwner
// so that it can speculatively request linked resources while it is unblocked.
//
class HTMLImportChild : public HTMLImport, public HTMLImportLoaderClient, public HTMLImportResourceOwner {
public:
HTMLImportChild(const KURL&, HTMLImportChildClient*);
virtual ~HTMLImportChild();
Document* importedDocument() const;
const KURL& url() const { return m_url; }
void wasAlreadyLoadedAs(HTMLImportChild* found);
void startLoading(const ResourcePtr<RawResource>&);
void importDestroyed();
bool isLoaded() const;
// HTMLImport
virtual HTMLImportRoot* root() OVERRIDE;
virtual Document* document() const OVERRIDE;
virtual void wasDetachedFromDocument() OVERRIDE;
virtual void didFinishParsing() OVERRIDE;
virtual bool isProcessing() const OVERRIDE;
virtual bool isDone() const OVERRIDE;
virtual void didUnblockDocument() OVERRIDE;
void clearClient() { m_client = 0; }
private:
// RawResourceOwner doing nothing.
// HTMLImportChild owns the resource so that the contents of prefetched Resource doesn't go away.
virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE { }
virtual void dataReceived(Resource*, const char*, int) OVERRIDE { }
virtual void notifyFinished(Resource*) OVERRIDE { }
// HTMLImportLoaderClient
virtual void didFinish() OVERRIDE;
void createLoader();
void shareLoader(HTMLImportChild*);
KURL m_url;
HTMLImportChildClient* m_client;
RefPtr<HTMLImportLoader> m_loader;
};
} // namespace WebCore
#endif // HTMLImportChild_h
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