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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef FetchDataLoader_h | 5 #ifndef FetchDataLoader_h |
6 #define FetchDataLoader_h | 6 #define FetchDataLoader_h |
7 | 7 |
8 #include "core/dom/DOMArrayBuffer.h" | 8 #include "core/dom/DOMArrayBuffer.h" |
9 #include "core/streams/Stream.h" | 9 #include "core/streams/Stream.h" |
10 #include "modules/ModulesExport.h" | 10 #include "modules/ModulesExport.h" |
11 #include "modules/fetch/FetchDataConsumerHandle.h" | 11 #include "modules/fetch/FetchDataConsumerHandle.h" |
12 #include "platform/blob/BlobData.h" | 12 #include "platform/blob/BlobData.h" |
13 #include "platform/heap/Handle.h" | 13 #include "platform/heap/Handle.h" |
14 #include "wtf/Forward.h" | 14 #include "wtf/Forward.h" |
15 | 15 |
16 namespace blink { | 16 namespace blink { |
17 | 17 |
18 // FetchDataLoader subclasses | 18 // FetchDataLoader subclasses |
19 // 1. take a reader of FetchDataConsumerHandle |handle|, | 19 // 1. take a reader of FetchDataConsumerHandle |handle|, |
20 // 2. read all data, and | 20 // 2. read all data, and |
21 // 3. call either didFetchDataLoaded...() on success or | 21 // 3. call either didFetchDataLoaded...() on success or |
22 // difFetchDataLoadFailed() otherwise | 22 // difFetchDataLoadFailed() otherwise |
23 // on the thread where FetchDataLoader is created. | 23 // on the thread where FetchDataLoader is created. |
24 // | 24 // |
25 // - Client's methods can be called synchronously in start(). | 25 // - Client's methods can be called synchronously in start(). |
| 26 // -- Specifically, if the first call by FetchDataLoader to read()/beginRead() |
| 27 // returns values other than Ok or ShouldWait, |
| 28 // Client's methods must be called synchronously in start(). |
26 // - If FetchDataLoader::cancel() is called (or FetchDataLoader is garbage | 29 // - If FetchDataLoader::cancel() is called (or FetchDataLoader is garbage |
27 // collected), Client's methods are not called anymore. | 30 // collected), Client's methods are not called anymore. |
28 // - FetchDataLoader takes the ownership of |handle|'s reader but not |handle|. | 31 // - FetchDataLoader takes the ownership of |handle|'s reader but not |handle|. |
29 class MODULES_EXPORT FetchDataLoader : public GarbageCollectedFinalized<FetchDat
aLoader> { | 32 class MODULES_EXPORT FetchDataLoader : public GarbageCollectedFinalized<FetchDat
aLoader> { |
30 public: | 33 public: |
31 class Client : public GarbageCollectedMixin { | 34 class Client : public GarbageCollectedMixin { |
32 public: | 35 public: |
33 virtual ~Client() { } | 36 virtual ~Client() { } |
34 | 37 |
35 // The method corresponding to createLoaderAs... is called on success. | 38 // The method corresponding to createLoaderAs... is called on success. |
(...skipping 34 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
70 virtual void start(FetchDataConsumerHandle* /* handle */, Client*) = 0; | 73 virtual void start(FetchDataConsumerHandle* /* handle */, Client*) = 0; |
71 | 74 |
72 virtual void cancel() = 0; | 75 virtual void cancel() = 0; |
73 | 76 |
74 DEFINE_INLINE_VIRTUAL_TRACE() { } | 77 DEFINE_INLINE_VIRTUAL_TRACE() { } |
75 }; | 78 }; |
76 | 79 |
77 } // namespace blink | 80 } // namespace blink |
78 | 81 |
79 #endif // FetchDataLoader_h | 82 #endif // FetchDataLoader_h |
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