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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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37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 class WebString; | 39 class WebString; |
40 class WebURL; | 40 class WebURL; |
41 | 41 |
42 class WebFileWriter { | 42 class WebFileWriter { |
43 public: | 43 public: |
44 virtual ~WebFileWriter() {} | 44 virtual ~WebFileWriter() {} |
45 | 45 |
46 // Only one write or one truncate operation can be in progress at a time. | 46 // Only one write or one truncate operation can be in progress at a time. |
47 // These functions are asynchronous and will report results through the WebFil
eWriter's associated WebFileWriterClient. | 47 // These functions are asynchronous and will report results through the |
| 48 // WebFileWriter's associated WebFileWriterClient. |
48 virtual void write(long long position, const WebString& blobUUID) {} | 49 virtual void write(long long position, const WebString& blobUUID) {} |
49 virtual void truncate(long long length) = 0; | 50 virtual void truncate(long long length) = 0; |
50 | 51 |
51 // Cancel will attempt to abort a running write or truncate. However, it may n
ot be possible to cancel an in-progress action, or the call may have come in too
late. Partial writes are possible. | 52 // Cancel will attempt to abort a running write or truncate. However, it may |
| 53 // not be possible to cancel an in-progress action, or the call may have come |
| 54 // in too late. Partial writes are possible. |
52 // Do not call cancel when there is no write or truncate in progress. | 55 // Do not call cancel when there is no write or truncate in progress. |
53 virtual void cancel() = 0; | 56 virtual void cancel() = 0; |
54 }; | 57 }; |
55 | 58 |
56 } // namespace blink | 59 } // namespace blink |
57 | 60 |
58 #endif | 61 #endif |
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