| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_H_ |
| |
| #include <memory> |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/public/common/indexeddb/web_idb_types.h" |
| #include "third_party/blink/renderer/bindings/core/v8/script_value.h" |
| #include "third_party/blink/renderer/bindings/modules/v8/idb_object_store_or_idb_index.h" |
| #include "third_party/blink/renderer/modules/indexeddb/idb_key.h" |
| #include "third_party/blink/renderer/modules/indexeddb/idb_request.h" |
| #include "third_party/blink/renderer/modules/indexeddb/indexed_db.h" |
| #include "third_party/blink/renderer/modules/indexeddb/web_idb_cursor.h" |
| #include "third_party/blink/renderer/platform/bindings/script_wrappable.h" |
| #include "third_party/blink/renderer/platform/wtf/compiler.h" |
| |
| namespace blink { |
| |
| class ExceptionState; |
| class IDBTransaction; |
| class IDBValue; |
| class ScriptState; |
| |
| class IDBCursor : public ScriptWrappable { |
| DEFINE_WRAPPERTYPEINFO(); |
| |
| public: |
| using Source = IDBObjectStoreOrIDBIndex; |
| |
| static mojom::IDBCursorDirection StringToDirection(const String& mode_string); |
| |
| static IDBCursor* Create(std::unique_ptr<WebIDBCursor>, |
| mojom::IDBCursorDirection, |
| IDBRequest*, |
| const Source&, |
| IDBTransaction*); |
| |
| IDBCursor(std::unique_ptr<WebIDBCursor>, |
| mojom::IDBCursorDirection, |
| IDBRequest*, |
| const Source&, |
| IDBTransaction*); |
| ~IDBCursor() override; |
| |
| void Trace(blink::Visitor*) override; |
| void ContextWillBeDestroyed() { backend_.reset(); } |
| |
| WARN_UNUSED_RESULT v8::Local<v8::Object> AssociateWithWrapper( |
| v8::Isolate*, |
| const WrapperTypeInfo*, |
| v8::Local<v8::Object> wrapper) override; |
| |
| // Implement the IDL |
| const String& direction() const; |
| ScriptValue key(ScriptState*); |
| ScriptValue primaryKey(ScriptState*); |
| ScriptValue value(ScriptState*); |
| void source(Source&) const; |
| |
| IDBRequest* update(ScriptState*, const ScriptValue&, ExceptionState&); |
| void advance(unsigned, ExceptionState&); |
| void Continue(ScriptState*, const ScriptValue& key, ExceptionState&); |
| void continuePrimaryKey(ScriptState*, |
| const ScriptValue& key, |
| const ScriptValue& primary_key, |
| ExceptionState&); |
| IDBRequest* Delete(ScriptState*, ExceptionState&); |
| |
| bool isKeyDirty() const { return key_dirty_; } |
| bool isPrimaryKeyDirty() const { return primary_key_dirty_; } |
| bool isValueDirty() const { return value_dirty_; } |
| |
| void Continue(std::unique_ptr<IDBKey>, |
| std::unique_ptr<IDBKey> primary_key, |
| IDBRequest::AsyncTraceState, |
| ExceptionState&); |
| void PostSuccessHandlerCallback(); |
| bool IsDeleted() const; |
| void Close(); |
| void SetValueReady(std::unique_ptr<IDBKey>, |
| std::unique_ptr<IDBKey> primary_key, |
| std::unique_ptr<IDBValue>); |
| const IDBKey* IdbPrimaryKey() const; |
| virtual bool IsKeyCursor() const { return true; } |
| virtual bool IsCursorWithValue() const { return false; } |
| |
| private: |
| IDBObjectStore* EffectiveObjectStore() const; |
| |
| std::unique_ptr<WebIDBCursor> backend_; |
| Member<IDBRequest> request_; |
| const mojom::IDBCursorDirection direction_; |
| Source source_; |
| Member<IDBTransaction> transaction_; |
| bool got_value_ = false; |
| bool key_dirty_ = true; |
| bool primary_key_dirty_ = true; |
| bool value_dirty_ = true; |
| std::unique_ptr<IDBKey> key_; |
| |
| // Owns the cursor's primary key, unless it needs to be injected in the |
| // cursor's value. IDBValue's class comment describes when primary key |
| // injection occurs. |
| // |
| // The cursor's primary key should generally be accessed via IdbPrimaryKey(), |
| // as it handles both cases correctly. |
| std::unique_ptr<IDBKey> primary_key_unless_injected_; |
| Member<IDBAny> value_; |
| |
| #if DCHECK_IS_ON() |
| bool value_has_injected_primary_key_ = false; |
| #endif // DCHECK_IS_ON() |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_H_ |