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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ | 5 #ifndef CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ |
6 #define CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ | 6 #define CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "content/common/indexed_db/indexed_db_key.h" | 12 #include "content/common/indexed_db/indexed_db_key.h" |
13 #include "content/public/common/serialized_script_value.h" | 13 #include "content/public/common/serialized_script_value.h" |
14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h" | 14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h" |
15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h" | 15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h" |
16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKey.h" | 16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKey.h" |
17 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSerialize
dScriptValue.h" | 17 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSerialize
dScriptValue.h" |
18 | 18 |
19 class RendererWebIDBCursorImpl : public WebKit::WebIDBCursor { | 19 class RendererWebIDBCursorImpl : public WebKit::WebIDBCursor { |
20 public: | 20 public: |
21 explicit RendererWebIDBCursorImpl(int32 idb_cursor_id); | 21 explicit RendererWebIDBCursorImpl(int32 idb_cursor_id); |
22 virtual ~RendererWebIDBCursorImpl(); | 22 virtual ~RendererWebIDBCursorImpl(); |
23 | 23 |
| 24 // TODO(jsbell): Remove the following three methods after WK92278 rolls. |
24 virtual WebKit::WebIDBKey key() const; | 25 virtual WebKit::WebIDBKey key() const; |
25 virtual WebKit::WebIDBKey primaryKey() const; | 26 virtual WebKit::WebIDBKey primaryKey() const; |
26 virtual WebKit::WebSerializedScriptValue value() const; | 27 virtual WebKit::WebSerializedScriptValue value() const; |
27 virtual void advance(unsigned long count, | 28 virtual void advance(unsigned long count, |
28 WebKit::WebIDBCallbacks* callback, | 29 WebKit::WebIDBCallbacks* callback, |
29 WebKit::WebExceptionCode& ec); | 30 WebKit::WebExceptionCode& ec); |
30 virtual void continueFunction(const WebKit::WebIDBKey& key, | 31 virtual void continueFunction(const WebKit::WebIDBKey& key, |
31 WebKit::WebIDBCallbacks* callback, | 32 WebKit::WebIDBCallbacks* callback, |
32 WebKit::WebExceptionCode& ec); | 33 WebKit::WebExceptionCode& ec); |
33 virtual void deleteFunction(WebKit::WebIDBCallbacks* callback, | 34 virtual void deleteFunction(WebKit::WebIDBCallbacks* callback, |
34 WebKit::WebExceptionCode& ec); | 35 WebKit::WebExceptionCode& ec); |
35 virtual void postSuccessHandlerCallback(); | 36 virtual void postSuccessHandlerCallback(); |
36 | 37 |
| 38 // TODO(jsbell): Remove the following method after WK92278 rolls. |
37 void SetKeyAndValue(const content::IndexedDBKey& key, | 39 void SetKeyAndValue(const content::IndexedDBKey& key, |
38 const content::IndexedDBKey& primary_key, | 40 const content::IndexedDBKey& primary_key, |
39 const content::SerializedScriptValue& value); | 41 const content::SerializedScriptValue& value); |
40 void SetPrefetchData( | 42 void SetPrefetchData( |
41 const std::vector<content::IndexedDBKey>& keys, | 43 const std::vector<content::IndexedDBKey>& keys, |
42 const std::vector<content::IndexedDBKey>& primary_keys, | 44 const std::vector<content::IndexedDBKey>& primary_keys, |
43 const std::vector<content::SerializedScriptValue>& values); | 45 const std::vector<content::SerializedScriptValue>& values); |
44 | 46 |
45 void CachedContinue(WebKit::WebIDBCallbacks* callbacks); | 47 void CachedContinue(WebKit::WebIDBCallbacks* callbacks); |
46 void ResetPrefetchCache(); | 48 void ResetPrefetchCache(); |
47 | 49 |
48 private: | 50 private: |
49 int32 idb_cursor_id_; | 51 int32 idb_cursor_id_; |
| 52 |
| 53 // TODO(jsbell): Remove the following three members after WK92278 rolls. |
50 content::IndexedDBKey key_; | 54 content::IndexedDBKey key_; |
51 content::IndexedDBKey primary_key_; | 55 content::IndexedDBKey primary_key_; |
52 content::SerializedScriptValue value_; | 56 content::SerializedScriptValue value_; |
53 | 57 |
54 // Prefetch cache. | 58 // Prefetch cache. |
55 std::deque<content::IndexedDBKey> prefetch_keys_; | 59 std::deque<content::IndexedDBKey> prefetch_keys_; |
56 std::deque<content::IndexedDBKey> prefetch_primary_keys_; | 60 std::deque<content::IndexedDBKey> prefetch_primary_keys_; |
57 std::deque<content::SerializedScriptValue> prefetch_values_; | 61 std::deque<content::SerializedScriptValue> prefetch_values_; |
58 | 62 |
59 // Number of continue calls that would qualify for a pre-fetch. | 63 // Number of continue calls that would qualify for a pre-fetch. |
60 int continue_count_; | 64 int continue_count_; |
61 | 65 |
62 // Number of items used from the last prefetch. | 66 // Number of items used from the last prefetch. |
63 int used_prefetches_; | 67 int used_prefetches_; |
64 | 68 |
65 // Number of onsuccess handlers we are waiting for. | 69 // Number of onsuccess handlers we are waiting for. |
66 int pending_onsuccess_callbacks_; | 70 int pending_onsuccess_callbacks_; |
67 | 71 |
68 // Number of items to request in next prefetch. | 72 // Number of items to request in next prefetch. |
69 int prefetch_amount_; | 73 int prefetch_amount_; |
70 | 74 |
71 enum { kPrefetchContinueThreshold = 2 }; | 75 enum { kPrefetchContinueThreshold = 2 }; |
72 enum { kMinPrefetchAmount = 5 }; | 76 enum { kMinPrefetchAmount = 5 }; |
73 enum { kMaxPrefetchAmount = 100 }; | 77 enum { kMaxPrefetchAmount = 100 }; |
74 }; | 78 }; |
75 | 79 |
76 #endif // CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ | 80 #endif // CONTENT_COMMON_INDEXED_DB_PROXY_WEBIDBCURSOR_IMPL_H_ |
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