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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 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 |
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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 WebBlobRegistry_h | 31 #ifndef WebBlobRegistry_h |
32 #define WebBlobRegistry_h | 32 #define WebBlobRegistry_h |
33 | 33 |
34 #include "WebCommon.h" | 34 #include "WebCommon.h" |
35 #include "WebThreadSafeData.h" | |
35 | 36 |
36 namespace blink { | 37 namespace blink { |
37 | 38 |
38 class WebBlobData; | 39 class WebBlobData; |
39 class WebString; | 40 class WebString; |
40 class WebURL; | 41 class WebURL; |
41 | 42 |
43 // Acts as singleton facade for all Blob interactions ouside of blink. This | |
44 // includes blob: | |
45 // * creation, | |
46 // * reference counting, | |
47 // * publishing, and | |
48 // * streaming. | |
42 class WebBlobRegistry { | 49 class WebBlobRegistry { |
43 public: | 50 public: |
51 // The blob is build in the registry on destruction of this class. | |
52 // Preconditions: | |
53 // * Not meant to be used on multiple threads. | |
54 // * Must not be kept alive longer than creator WebBlobRegistry (shouldn't | |
55 // be an issue because of the singleton nature of the WebBlobRegistry) | |
56 // Calls on this object can be sending IPCs to the browser process, so make | |
57 // sure to destruct this ASAP. | |
58 class Builder { | |
59 public: | |
60 virtual ~Builder() { } | |
jochen (gone - plz use gerrit)
2015/06/12 08:39:23
not needed
jsbell
2015/06/12 16:43:43
Is this for planned subclasses in unit tests on th
dmurph
2015/06/12 19:06:48
Yes, there will be a mock subclass of this as well
| |
61 virtual void appendData(const WebThreadSafeData&) = 0; | |
62 virtual void appendFile(const WebString& path, uint64_t offset, uint64_t length, double expectedModificationTime) = 0; | |
63 // Calling this method ensures the given blob lives for the creation of | |
64 // the new blob. | |
65 virtual void appendBlob(const WebString& uuid, uint64_t offset, uint64_t length) = 0; | |
66 virtual void appendFileSystemURL(const WebURL&, uint64_t offset, uint64_ t length, double expectedModificationTime) = 0; | |
67 }; | |
68 | |
44 virtual ~WebBlobRegistry() { } | 69 virtual ~WebBlobRegistry() { } |
45 | 70 |
71 // TODO(dmurph): Deprecate and migrate to createBuilder | |
46 virtual void registerBlobData(const WebString& uuid, const WebBlobData&) { } | 72 virtual void registerBlobData(const WebString& uuid, const WebBlobData&) { } |
73 | |
74 // Caller takes ownership of the Builder. The blob is finalized on destructi on | |
75 // of the builder. Append calls on the builder can be sending state over | |
76 // to the browser (to avoid copying), so destruct this builder ASAP. | |
77 virtual Builder* createBuilder(const WebString& uuid, const WebString& conte ntType) { BLINK_ASSERT_NOT_REACHED(); return nullptr; } | |
78 | |
47 virtual void addBlobDataRef(const WebString& uuid) { } | 79 virtual void addBlobDataRef(const WebString& uuid) { } |
48 virtual void removeBlobDataRef(const WebString& uuid) { } | 80 virtual void removeBlobDataRef(const WebString& uuid) { } |
49 virtual void registerPublicBlobURL(const WebURL&, const WebString& uuid) { } | 81 virtual void registerPublicBlobURL(const WebURL&, const WebString& uuid) { } |
50 virtual void revokePublicBlobURL(const WebURL&) { } | 82 virtual void revokePublicBlobURL(const WebURL&) { } |
51 | 83 |
52 // Registers a stream URL referring to a stream with the specified media | 84 // Registers a stream URL referring to a stream with the specified media |
53 // type. | 85 // type. |
54 virtual void registerStreamURL(const WebURL&, const WebString&) { BLINK_ASSE RT_NOT_REACHED(); } | 86 virtual void registerStreamURL(const WebURL&, const WebString&) { BLINK_ASSE RT_NOT_REACHED(); } |
55 | 87 |
56 // Registers a stream URL referring to the stream identified by the | 88 // Registers a stream URL referring to the stream identified by the |
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71 // so it won't receive any more data. | 103 // so it won't receive any more data. |
72 virtual void abortStream(const WebURL&) { BLINK_ASSERT_NOT_REACHED(); } | 104 virtual void abortStream(const WebURL&) { BLINK_ASSERT_NOT_REACHED(); } |
73 | 105 |
74 // Unregisters a stream referred by the URL. | 106 // Unregisters a stream referred by the URL. |
75 virtual void unregisterStreamURL(const WebURL&) { BLINK_ASSERT_NOT_REACHED() ; } | 107 virtual void unregisterStreamURL(const WebURL&) { BLINK_ASSERT_NOT_REACHED() ; } |
76 }; | 108 }; |
77 | 109 |
78 } // namespace blink | 110 } // namespace blink |
79 | 111 |
80 #endif // WebBlobRegistry_h | 112 #endif // WebBlobRegistry_h |
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