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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 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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| 44 | 44 |
| 45 enum Result { | 45 enum Result { |
| 46 ResultOK = 0, | 46 ResultOK = 0, |
| 47 ResultBlockedByQuota, | 47 ResultBlockedByQuota, |
| 48 ResultLast = ResultBlockedByQuota | 48 ResultLast = ResultBlockedByQuota |
| 49 }; | 49 }; |
| 50 | 50 |
| 51 // The number of key/value pairs in the storage area. | 51 // The number of key/value pairs in the storage area. |
| 52 virtual unsigned length() = 0; | 52 virtual unsigned length() = 0; |
| 53 | 53 |
| 54 // Get a value for a specific key. Valid key indices are 0 through length() -
1. | 54 // Get a value for a specific key. Valid key indices are 0 through |
| 55 // Indexes may change on any set/removeItem call. Will return null if the inde
x | 55 // length() - 1. Indexes may change on any set/removeItem call. Will return |
| 56 // provided is out of range. | 56 // null if the index provided is out of range. |
| 57 virtual WebString key(unsigned index) = 0; | 57 virtual WebString key(unsigned index) = 0; |
| 58 | 58 |
| 59 // Get the value that corresponds to a specific key. This returns null if ther
e is | 59 // Get the value that corresponds to a specific key. This returns null if |
| 60 // no entry for that key. | 60 // there is no entry for that key. |
| 61 virtual WebString getItem(const WebString& key) = 0; | 61 virtual WebString getItem(const WebString& key) = 0; |
| 62 | 62 |
| 63 // Set the value that corresponds to a specific key. Result will either be Res
ultOK | 63 // Set the value that corresponds to a specific key. Result will either be |
| 64 // or some particular error. The value is NOT set when there's an error. |page
Url| is the | 64 // ResultOK or some particular error. The value is NOT set when there's an |
| 65 // url that should be used if a storage event fires. | 65 // error. |pageUrl| is the url that should be used if a storage event fires. |
| 66 virtual void setItem(const WebString& key, | 66 virtual void setItem(const WebString& key, |
| 67 const WebString& newValue, | 67 const WebString& newValue, |
| 68 const WebURL& pageUrl, | 68 const WebURL& pageUrl, |
| 69 Result& result) { | 69 Result& result) { |
| 70 WebString unused; | 70 WebString unused; |
| 71 setItem(key, newValue, pageUrl, result, unused); | 71 setItem(key, newValue, pageUrl, result, unused); |
| 72 } | 72 } |
| 73 | 73 |
| 74 // Remove the value associated with a particular key. |pageUrl| is the url tha
t should be used | 74 // Remove the value associated with a particular key. |pageUrl| is the url |
| 75 // if a storage event fires. | 75 // that should be used if a storage event fires. |
| 76 virtual void removeItem(const WebString& key, const WebURL& pageUrl) { | 76 virtual void removeItem(const WebString& key, const WebURL& pageUrl) { |
| 77 WebString unused; | 77 WebString unused; |
| 78 removeItem(key, pageUrl, unused); | 78 removeItem(key, pageUrl, unused); |
| 79 } | 79 } |
| 80 | 80 |
| 81 // Clear all key/value pairs. |pageUrl| is the url that should be used if a st
orage event fires. | 81 // Clear all key/value pairs. |pageUrl| is the url that should be used if a |
| 82 // storage event fires. |
| 82 virtual void clear(const WebURL& pageUrl) { | 83 virtual void clear(const WebURL& pageUrl) { |
| 83 bool unused; | 84 bool unused; |
| 84 clear(pageUrl, unused); | 85 clear(pageUrl, unused); |
| 85 } | 86 } |
| 86 | 87 |
| 87 // DEPRECATED - being replaced by the async variants above which do not return
oldValues or block until completion. | 88 // DEPRECATED - being replaced by the async variants above which do not return |
| 89 // oldValues or block until completion. |
| 88 virtual void setItem(const WebString& key, | 90 virtual void setItem(const WebString& key, |
| 89 const WebString& newValue, | 91 const WebString& newValue, |
| 90 const WebURL&, | 92 const WebURL&, |
| 91 Result&, | 93 Result&, |
| 92 WebString& oldValue) {} | 94 WebString& oldValue) {} |
| 93 virtual void removeItem(const WebString& key, | 95 virtual void removeItem(const WebString& key, |
| 94 const WebURL& pageUrl, | 96 const WebURL& pageUrl, |
| 95 WebString& oldValue) {} | 97 WebString& oldValue) {} |
| 96 virtual void clear(const WebURL& pageUrl, bool& somethingCleared) {} | 98 virtual void clear(const WebURL& pageUrl, bool& somethingCleared) {} |
| 97 }; | 99 }; |
| 98 | 100 |
| 99 } // namespace blink | 101 } // namespace blink |
| 100 | 102 |
| 101 #endif // WebStorageArea_h | 103 #endif // WebStorageArea_h |
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