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/*
* Copyright (C) 2011 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 TextTrackLoader_h
#define TextTrackLoader_h
#include "core/fetch/RawResource.h"
#include "core/fetch/ResourceOwner.h"
#include "core/html/track/vtt/VTTParser.h"
#include "platform/Timer.h"
#include "platform/heap/Handle.h"
#include "wtf/OwnPtr.h"
namespace blink {
class Document;
class TextTrackLoader;
class TextTrackLoaderClient : public ResourceOwner<RawResource> {
public:
virtual ~TextTrackLoaderClient() { }
virtual void newCuesAvailable(TextTrackLoader*) = 0;
virtual void cueLoadingCompleted(TextTrackLoader*, bool loadingFailed) = 0;
virtual void newRegionsAvailable(TextTrackLoader*) = 0;
};
class TextTrackLoader final : public NoBaseWillBeGarbageCollectedFinalized<TextTrackLoader>, public ResourceOwner<RawResource>, private VTTParserClient {
WTF_MAKE_NONCOPYABLE(TextTrackLoader);
WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
public:
static PassOwnPtrWillBeRawPtr<TextTrackLoader> create(TextTrackLoaderClient& client, Document& document)
{
return adoptPtrWillBeNoop(new TextTrackLoader(client, document));
}
virtual ~TextTrackLoader();
bool load(const KURL&, const AtomicString& crossOriginMode);
void cancelLoad();
enum State { Idle, Loading, Finished, Failed };
State loadState() { return m_state; }
void getNewCues(WillBeHeapVector<RefPtrWillBeMember<VTTCue> >& outputCues);
void getNewRegions(WillBeHeapVector<RefPtrWillBeMember<VTTRegion> >& outputRegions);
void trace(Visitor*);
private:
// RawResourceClient
virtual void dataReceived(Resource*, const char* data, unsigned length) override;
virtual void notifyFinished(Resource*) override;
// VTTParserClient
virtual void newCuesParsed() override;
virtual void newRegionsParsed() override;
virtual void fileFailedToParse() override;
TextTrackLoader(TextTrackLoaderClient&, Document&);
void cueLoadTimerFired(Timer<TextTrackLoader>*);
void corsPolicyPreventedLoad(SecurityOrigin*, const KURL&);
Document& document() const { return *m_document; }
TextTrackLoaderClient& m_client;
OwnPtrWillBeMember<VTTParser> m_cueParser;
// FIXME: Remove this pointer and get the Document from m_client.
RawPtrWillBeMember<Document> m_document;
Timer<TextTrackLoader> m_cueLoadTimer;
State m_state;
bool m_newCuesAvailable;
};
} // namespace blink
#endif
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