| /* |
| * 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/ResourcePtr.h" |
| #include "core/html/track/vtt/VTTParser.h" |
| #include "platform/Timer.h" |
| #include "wtf/OwnPtr.h" |
| |
| namespace WebCore { |
| |
| class Document; |
| class TextTrackLoader; |
| |
| class TextTrackLoaderClient { |
| public: |
| virtual ~TextTrackLoaderClient() { } |
| |
| virtual void newCuesAvailable(TextTrackLoader*) = 0; |
| virtual void cueLoadingCompleted(TextTrackLoader*, bool loadingFailed) = 0; |
| virtual void newRegionsAvailable(TextTrackLoader*) = 0; |
| }; |
| |
| class TextTrackLoader : public RawResourceClient, private VTTParserClient { |
| WTF_MAKE_NONCOPYABLE(TextTrackLoader); |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| static PassOwnPtr<TextTrackLoader> create(TextTrackLoaderClient& client, Document& document) |
| { |
| return adoptPtr(new TextTrackLoader(client, document)); |
| } |
| virtual ~TextTrackLoader(); |
| |
| bool load(const KURL&, const String& crossOriginMode); |
| void cancelLoad(); |
| |
| enum State { Idle, Loading, Finished, Failed }; |
| State loadState() { return m_state; } |
| |
| void getNewCues(Vector<RefPtr<VTTCue> >& outputCues); |
| void getNewRegions(Vector<RefPtr<VTTRegion> >& outputRegions); |
| private: |
| |
| // RawResourceClient |
| virtual void dataReceived(Resource*, const char* data, int 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(); |
| |
| TextTrackLoaderClient& m_client; |
| OwnPtr<VTTParser> m_cueParser; |
| ResourcePtr<RawResource> m_resource; |
| // FIXME: Remove this pointer and get the Document from m_client. |
| Document& m_document; |
| Timer<TextTrackLoader> m_cueLoadTimer; |
| String m_crossOriginMode; |
| State m_state; |
| bool m_newCuesAvailable; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif |