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comparison: dom/indexedDB/IDBCursor.h
dom/indexedDB/IDBCursor.h
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| -1:000000000000 | 0:449c1fa3ee2d |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_indexeddb_idbcursor_h__ | |
| 8 #define mozilla_dom_indexeddb_idbcursor_h__ | |
| 9 | |
| 10 #include "mozilla/dom/indexedDB/IndexedDatabase.h" | |
| 11 | |
| 12 #include "mozilla/Attributes.h" | |
| 13 #include "mozilla/dom/IDBCursorBinding.h" | |
| 14 #include "mozilla/ErrorResult.h" | |
| 15 #include "nsCycleCollectionParticipant.h" | |
| 16 #include "nsWrapperCache.h" | |
| 17 | |
| 18 #include "mozilla/dom/indexedDB/IDBObjectStore.h" | |
| 19 #include "mozilla/dom/indexedDB/Key.h" | |
| 20 | |
| 21 class nsIRunnable; | |
| 22 class nsIScriptContext; | |
| 23 class nsPIDOMWindow; | |
| 24 | |
| 25 namespace mozilla { | |
| 26 namespace dom { | |
| 27 class OwningIDBObjectStoreOrIDBIndex; | |
| 28 } | |
| 29 } | |
| 30 | |
| 31 BEGIN_INDEXEDDB_NAMESPACE | |
| 32 | |
| 33 class ContinueHelper; | |
| 34 class ContinueObjectStoreHelper; | |
| 35 class ContinueIndexHelper; | |
| 36 class ContinueIndexObjectHelper; | |
| 37 class IDBIndex; | |
| 38 class IDBRequest; | |
| 39 class IDBTransaction; | |
| 40 class IndexedDBCursorChild; | |
| 41 class IndexedDBCursorParent; | |
| 42 | |
| 43 class IDBCursor MOZ_FINAL : public nsISupports, | |
| 44 public nsWrapperCache | |
| 45 { | |
| 46 friend class ContinueHelper; | |
| 47 friend class ContinueObjectStoreHelper; | |
| 48 friend class ContinueIndexHelper; | |
| 49 friend class ContinueIndexObjectHelper; | |
| 50 | |
| 51 public: | |
| 52 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 53 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(IDBCursor) | |
| 54 | |
| 55 enum Type | |
| 56 { | |
| 57 OBJECTSTORE = 0, | |
| 58 OBJECTSTOREKEY, | |
| 59 INDEXKEY, | |
| 60 INDEXOBJECT | |
| 61 }; | |
| 62 | |
| 63 enum Direction | |
| 64 { | |
| 65 NEXT = 0, | |
| 66 NEXT_UNIQUE, | |
| 67 PREV, | |
| 68 PREV_UNIQUE, | |
| 69 | |
| 70 // Only needed for IPC serialization helper, should never be used in code. | |
| 71 DIRECTION_INVALID | |
| 72 }; | |
| 73 | |
| 74 // For OBJECTSTORE cursors. | |
| 75 static | |
| 76 already_AddRefed<IDBCursor> | |
| 77 Create(IDBRequest* aRequest, | |
| 78 IDBTransaction* aTransaction, | |
| 79 IDBObjectStore* aObjectStore, | |
| 80 Direction aDirection, | |
| 81 const Key& aRangeKey, | |
| 82 const nsACString& aContinueQuery, | |
| 83 const nsACString& aContinueToQuery, | |
| 84 const Key& aKey, | |
| 85 StructuredCloneReadInfo&& aCloneReadInfo); | |
| 86 | |
| 87 // For OBJECTSTOREKEY cursors. | |
| 88 static | |
| 89 already_AddRefed<IDBCursor> | |
| 90 Create(IDBRequest* aRequest, | |
| 91 IDBTransaction* aTransaction, | |
| 92 IDBObjectStore* aObjectStore, | |
| 93 Direction aDirection, | |
| 94 const Key& aRangeKey, | |
| 95 const nsACString& aContinueQuery, | |
| 96 const nsACString& aContinueToQuery, | |
| 97 const Key& aKey); | |
| 98 | |
| 99 // For INDEXKEY cursors. | |
| 100 static | |
| 101 already_AddRefed<IDBCursor> | |
| 102 Create(IDBRequest* aRequest, | |
| 103 IDBTransaction* aTransaction, | |
| 104 IDBIndex* aIndex, | |
| 105 Direction aDirection, | |
| 106 const Key& aRangeKey, | |
| 107 const nsACString& aContinueQuery, | |
| 108 const nsACString& aContinueToQuery, | |
| 109 const Key& aKey, | |
| 110 const Key& aObjectKey); | |
| 111 | |
| 112 // For INDEXOBJECT cursors. | |
| 113 static | |
| 114 already_AddRefed<IDBCursor> | |
| 115 Create(IDBRequest* aRequest, | |
| 116 IDBTransaction* aTransaction, | |
| 117 IDBIndex* aIndex, | |
| 118 Direction aDirection, | |
| 119 const Key& aRangeKey, | |
| 120 const nsACString& aContinueQuery, | |
| 121 const nsACString& aContinueToQuery, | |
| 122 const Key& aKey, | |
| 123 const Key& aObjectKey, | |
| 124 StructuredCloneReadInfo&& aCloneReadInfo); | |
| 125 | |
| 126 IDBTransaction* Transaction() const | |
| 127 { | |
| 128 return mTransaction; | |
| 129 } | |
| 130 | |
| 131 IDBRequest* Request() const | |
| 132 { | |
| 133 return mRequest; | |
| 134 } | |
| 135 | |
| 136 static Direction | |
| 137 ConvertDirection(IDBCursorDirection aDirection); | |
| 138 | |
| 139 void | |
| 140 SetActor(IndexedDBCursorChild* aActorChild) | |
| 141 { | |
| 142 NS_ASSERTION(!aActorChild || !mActorChild, "Shouldn't have more than one!"); | |
| 143 mActorChild = aActorChild; | |
| 144 } | |
| 145 | |
| 146 void | |
| 147 SetActor(IndexedDBCursorParent* aActorParent) | |
| 148 { | |
| 149 NS_ASSERTION(!aActorParent || !mActorParent, | |
| 150 "Shouldn't have more than one!"); | |
| 151 mActorParent = aActorParent; | |
| 152 } | |
| 153 | |
| 154 IndexedDBCursorChild* | |
| 155 GetActorChild() const | |
| 156 { | |
| 157 return mActorChild; | |
| 158 } | |
| 159 | |
| 160 IndexedDBCursorParent* | |
| 161 GetActorParent() const | |
| 162 { | |
| 163 return mActorParent; | |
| 164 } | |
| 165 | |
| 166 void | |
| 167 ContinueInternal(const Key& aKey, int32_t aCount, | |
| 168 ErrorResult& aRv); | |
| 169 | |
| 170 // nsWrapperCache | |
| 171 virtual JSObject* | |
| 172 WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 173 | |
| 174 // WebIDL | |
| 175 IDBTransaction* | |
| 176 GetParentObject() const | |
| 177 { | |
| 178 return mTransaction; | |
| 179 } | |
| 180 | |
| 181 void | |
| 182 GetSource(OwningIDBObjectStoreOrIDBIndex& aSource) const; | |
| 183 | |
| 184 IDBCursorDirection | |
| 185 GetDirection() const; | |
| 186 | |
| 187 void | |
| 188 GetKey(JSContext* aCx, JS::MutableHandle<JS::Value> aResult, | |
| 189 ErrorResult& aRv); | |
| 190 | |
| 191 void | |
| 192 GetPrimaryKey(JSContext* aCx, JS::MutableHandle<JS::Value> aResult, | |
| 193 ErrorResult& aRv); | |
| 194 | |
| 195 already_AddRefed<IDBRequest> | |
| 196 Update(JSContext* aCx, JS::Handle<JS::Value> aValue, ErrorResult& aRv); | |
| 197 | |
| 198 void | |
| 199 Advance(uint32_t aCount, ErrorResult& aRv); | |
| 200 | |
| 201 void | |
| 202 Continue(JSContext* aCx, JS::Handle<JS::Value> aKey, ErrorResult& aRv); | |
| 203 | |
| 204 already_AddRefed<IDBRequest> | |
| 205 Delete(JSContext* aCx, ErrorResult& aRv); | |
| 206 | |
| 207 void | |
| 208 GetValue(JSContext* aCx, JS::MutableHandle<JS::Value> aResult, | |
| 209 ErrorResult& aRv); | |
| 210 | |
| 211 protected: | |
| 212 IDBCursor(); | |
| 213 ~IDBCursor(); | |
| 214 | |
| 215 void DropJSObjects(); | |
| 216 | |
| 217 static | |
| 218 already_AddRefed<IDBCursor> | |
| 219 CreateCommon(IDBRequest* aRequest, | |
| 220 IDBTransaction* aTransaction, | |
| 221 IDBObjectStore* aObjectStore, | |
| 222 Direction aDirection, | |
| 223 const Key& aRangeKey, | |
| 224 const nsACString& aContinueQuery, | |
| 225 const nsACString& aContinueToQuery); | |
| 226 | |
| 227 nsRefPtr<IDBRequest> mRequest; | |
| 228 nsRefPtr<IDBTransaction> mTransaction; | |
| 229 nsRefPtr<IDBObjectStore> mObjectStore; | |
| 230 nsRefPtr<IDBIndex> mIndex; | |
| 231 | |
| 232 JS::Heap<JSObject*> mScriptOwner; | |
| 233 | |
| 234 Type mType; | |
| 235 Direction mDirection; | |
| 236 nsCString mContinueQuery; | |
| 237 nsCString mContinueToQuery; | |
| 238 | |
| 239 // These are cycle-collected! | |
| 240 JS::Heap<JS::Value> mCachedKey; | |
| 241 JS::Heap<JS::Value> mCachedPrimaryKey; | |
| 242 JS::Heap<JS::Value> mCachedValue; | |
| 243 | |
| 244 Key mRangeKey; | |
| 245 | |
| 246 Key mKey; | |
| 247 Key mObjectKey; | |
| 248 StructuredCloneReadInfo mCloneReadInfo; | |
| 249 Key mContinueToKey; | |
| 250 | |
| 251 IndexedDBCursorChild* mActorChild; | |
| 252 IndexedDBCursorParent* mActorParent; | |
| 253 | |
| 254 bool mHaveCachedKey; | |
| 255 bool mHaveCachedPrimaryKey; | |
| 256 bool mHaveCachedValue; | |
| 257 bool mRooted; | |
| 258 bool mContinueCalled; | |
| 259 bool mHaveValue; | |
| 260 }; | |
| 261 | |
| 262 END_INDEXEDDB_NAMESPACE | |
| 263 | |
| 264 #endif // mozilla_dom_indexeddb_idbcursor_h__ |
