2 * Copyright (C) 2011 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
26 #ifndef TextTrackLoader_h
27 #define TextTrackLoader_h
29 #include "core/fetch/RawResource.h"
30 #include "core/fetch/ResourceOwner.h"
31 #include "core/html/track/vtt/VTTParser.h"
32 #include "platform/Timer.h"
33 #include "platform/heap/Handle.h"
34 #include "wtf/OwnPtr.h"
39 class TextTrackLoader;
41 class TextTrackLoaderClient : public ResourceOwner<RawResource> {
43 virtual ~TextTrackLoaderClient() { }
45 virtual void newCuesAvailable(TextTrackLoader*) = 0;
46 virtual void cueLoadingCompleted(TextTrackLoader*, bool loadingFailed) = 0;
47 virtual void newRegionsAvailable(TextTrackLoader*) = 0;
50 class TextTrackLoader FINAL : public NoBaseWillBeGarbageCollectedFinalized<TextTrackLoader>, public ResourceOwner<RawResource>, private VTTParserClient {
51 WTF_MAKE_NONCOPYABLE(TextTrackLoader);
52 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
54 static PassOwnPtrWillBeRawPtr<TextTrackLoader> create(TextTrackLoaderClient& client, Document& document)
56 return adoptPtrWillBeNoop(new TextTrackLoader(client, document));
58 virtual ~TextTrackLoader();
60 bool load(const KURL&, const AtomicString& crossOriginMode);
63 enum State { Idle, Loading, Finished, Failed };
64 State loadState() { return m_state; }
66 void getNewCues(WillBeHeapVector<RefPtrWillBeMember<VTTCue> >& outputCues);
67 void getNewRegions(WillBeHeapVector<RefPtrWillBeMember<VTTRegion> >& outputRegions);
73 virtual void dataReceived(Resource*, const char* data, int length) OVERRIDE;
74 virtual void notifyFinished(Resource*) OVERRIDE;
77 virtual void newCuesParsed() OVERRIDE;
78 virtual void newRegionsParsed() OVERRIDE;
79 virtual void fileFailedToParse() OVERRIDE;
81 TextTrackLoader(TextTrackLoaderClient&, Document&);
83 void cueLoadTimerFired(Timer<TextTrackLoader>*);
84 void corsPolicyPreventedLoad(SecurityOrigin*, const KURL&);
86 Document& document() const { return *m_document; }
88 TextTrackLoaderClient& m_client;
89 OwnPtrWillBeMember<VTTParser> m_cueParser;
90 // FIXME: Remove this pointer and get the Document from m_client.
91 RawPtrWillBeMember<Document> m_document;
92 Timer<TextTrackLoader> m_cueLoadTimer;
94 bool m_newCuesAvailable;