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1 /* | |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
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. | |
29 */ | |
30 | |
31 #ifndef WebStorageNamespace_h | |
32 #define WebStorageNamespace_h | |
33 | |
34 #include "WebCommon.h" | |
35 | |
36 namespace WebKit { | |
37 | |
38 class WebStorageArea; | |
39 class WebString; | |
40 | |
41 // WebStorageNamespace represents a collection of StorageAreas. Typically, you'll have | |
42 // multiple StorageNamespaces to represent the SessionStorage for each tab and a single | |
43 // StorageNamespace to represent LocalStorage for the entire browser. | |
44 class WebStorageNamespace { | |
45 public: | |
46 // Create a new WebStorageNamespace. LocalStorageNamespaces require a path to specify | |
47 // where the SQLite databases that make LocalStorage data persistent are located. | |
48 // If path is empty, data will not persist. You should call delete on the returned | |
49 // object when you're finished. | |
50 WEBKIT_API static WebStorageNamespace* createLocalStorageNamespace(const WebString& backingDirectoryPath, unsigned quota); | |
51 WEBKIT_API static WebStorageNamespace* createSessionStorageNamespace(); | |
52 | |
53 static const unsigned noQuota = UINT_MAX; | |
54 | |
55 virtual ~WebStorageNamespace() { } | |
56 | |
57 // Create a new WebStorageArea object. Two subsequent calls with the same origin | |
58 // will return two different WebStorageArea objects that share the same backing store. | |
59 // You should call delete on the returned object when you're finished. | |
60 virtual WebStorageArea* createStorageArea(const WebString& origin) = 0; | |
61 | |
62 // Copy a StorageNamespace. This only makes sense in the case of SessionStorage. | |
63 virtual WebStorageNamespace* copy() = 0; | |
64 | |
65 // Shutdown the StorageNamespace. Write all StorageArea's to disk and disallow new | |
66 // write activity. | |
67 virtual void close() = 0; | |
68 }; | |
69 | |
70 } // namespace WebKit | |
71 | |
72 #endif // WebStorageNamespace_h | |
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