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| 1 /* | 1 /* |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 14 matching lines...) Expand all Loading... |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ | 29 */ |
| 30 | 30 |
| 31 #ifndef Stream_h | 31 #ifndef Stream_h |
| 32 #define Stream_h | 32 #define Stream_h |
| 33 | 33 |
| 34 #include "core/CoreExport.h" | 34 #include "core/CoreExport.h" |
| 35 #include "core/dom/ActiveDOMObject.h" | 35 #include "core/dom/SuspendableObject.h" |
| 36 #include "platform/heap/Handle.h" | 36 #include "platform/heap/Handle.h" |
| 37 #include "platform/weborigin/KURL.h" | 37 #include "platform/weborigin/KURL.h" |
| 38 #include "wtf/text/WTFString.h" | 38 #include "wtf/text/WTFString.h" |
| 39 | 39 |
| 40 namespace blink { | 40 namespace blink { |
| 41 | 41 |
| 42 class ExecutionContext; | 42 class ExecutionContext; |
| 43 | 43 |
| 44 class CORE_EXPORT Stream final : public GarbageCollectedFinalized<Stream>, | 44 class CORE_EXPORT Stream final : public GarbageCollectedFinalized<Stream>, |
| 45 public ActiveDOMObject { | 45 public SuspendableObject { |
| 46 USING_GARBAGE_COLLECTED_MIXIN(Stream); | 46 USING_GARBAGE_COLLECTED_MIXIN(Stream); |
| 47 | 47 |
| 48 public: | 48 public: |
| 49 static Stream* create(ExecutionContext* context, const String& mediaType) { | 49 static Stream* create(ExecutionContext* context, const String& mediaType) { |
| 50 Stream* stream = new Stream(context, mediaType); | 50 Stream* stream = new Stream(context, mediaType); |
| 51 stream->suspendIfNeeded(); | 51 stream->suspendIfNeeded(); |
| 52 return stream; | 52 return stream; |
| 53 } | 53 } |
| 54 | 54 |
| 55 ~Stream() override; | 55 ~Stream() override; |
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| 69 // Mark this stream finalized due to an error so that a reader of this | 69 // Mark this stream finalized due to an error so that a reader of this |
| 70 // stream is notified of EOF due to the error. | 70 // stream is notified of EOF due to the error. |
| 71 void abort(); | 71 void abort(); |
| 72 | 72 |
| 73 // Allow an external reader class to mark this object neutered so that they | 73 // Allow an external reader class to mark this object neutered so that they |
| 74 // won't load the corresponding stream again. All stream objects are | 74 // won't load the corresponding stream again. All stream objects are |
| 75 // read-once for now. | 75 // read-once for now. |
| 76 void neuter() { m_isNeutered = true; } | 76 void neuter() { m_isNeutered = true; } |
| 77 bool isNeutered() const { return m_isNeutered; } | 77 bool isNeutered() const { return m_isNeutered; } |
| 78 | 78 |
| 79 // Implementation of ActiveDOMObject. | 79 // Implementation of SuspendableObject. |
| 80 // | 80 // |
| 81 // FIXME: Implement suspend() and resume() when necessary. | 81 // FIXME: Implement suspend() and resume() when necessary. |
| 82 void suspend() override; | 82 void suspend() override; |
| 83 void resume() override; | 83 void resume() override; |
| 84 void contextDestroyed() override; | 84 void contextDestroyed() override; |
| 85 | 85 |
| 86 DECLARE_VIRTUAL_TRACE(); | 86 DECLARE_VIRTUAL_TRACE(); |
| 87 | 87 |
| 88 protected: | 88 protected: |
| 89 Stream(ExecutionContext*, const String& mediaType); | 89 Stream(ExecutionContext*, const String& mediaType); |
| 90 | 90 |
| 91 // This is an internal URL referring to the blob data associated with this | 91 // This is an internal URL referring to the blob data associated with this |
| 92 // object. It serves as an identifier for this blob. The internal URL is never | 92 // object. It serves as an identifier for this blob. The internal URL is never |
| 93 // used to source the blob's content into an HTML or for FileRead'ing, public | 93 // used to source the blob's content into an HTML or for FileRead'ing, public |
| 94 // blob URLs must be used for those purposes. | 94 // blob URLs must be used for those purposes. |
| 95 KURL m_internalURL; | 95 KURL m_internalURL; |
| 96 | 96 |
| 97 String m_mediaType; | 97 String m_mediaType; |
| 98 | 98 |
| 99 bool m_isNeutered; | 99 bool m_isNeutered; |
| 100 }; | 100 }; |
| 101 | 101 |
| 102 } // namespace blink | 102 } // namespace blink |
| 103 | 103 |
| 104 #endif // Stream_h | 104 #endif // Stream_h |
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