IndexedDB Observers

third_party/WebKit/Source/modules/indexeddb/IDBObserverChangesRecord.cpp

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "modules/indexeddb/IDBObserverChangesRecord.h"
+
+#include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/ToV8.h"
+#include "bindings/modules/v8/ToV8ForModules.h"
+#include "bindings/modules/v8/V8BindingForModules.h"
+#include "modules/IndexedDBNames.h"
+#include "modules/indexeddb/IDBAny.h"
+#include "modules/indexeddb/IDBKey.h"
+#include "modules/indexeddb/IDBValue.h"
+
+namespace blink {
+
+IDBObserverChangesRecord::~IDBObserverChangesRecord() {}
+
+ScriptValue IDBObserverChangesRecord::key(ScriptState* scriptState)
+{
+    return ScriptValue::from(scriptState, m_key);
+}
+
+ScriptValue IDBObserverChangesRecord::value(ScriptState* scriptState)
+{
+    IDBAny* value;
+    if (!m_value) {
+        value = IDBAny::createUndefined();
+    } else {
+        value = IDBAny::create(m_value);
+    }
+    ScriptValue scriptValue = ScriptValue::from(scriptState, value);
+    return scriptValue;
+}
+
+WebIDBOperationType IDBObserverChangesRecord::stringToOperationType(const String& type)
+{
+    if (type == IndexedDBNames::add)
+        return WebIDBAdd;
+    if (type == IndexedDBNames::put)
+        return WebIDBPut;
+    if (type == IndexedDBNames::kDelete)
+        return WebIDBDelete;
+    if (type == IndexedDBNames::clear)
+        return WebIDBClear;
+
+    NOTREACHED();
+    return WebIDBAdd;
+}
+
+const String& IDBObserverChangesRecord::type() const
+{
+    switch (m_operationType) {
+    case WebIDBAdd:
+        return IndexedDBNames::add;
+
+    case WebIDBPut:
+        return IndexedDBNames::put;
+
+    case WebIDBDelete:
+        return IndexedDBNames::kDelete;
+
+    case WebIDBClear:
+        return IndexedDBNames::clear;
+
+    default:
+        NOTREACHED();
+        return IndexedDBNames::add;
+    }
+}
+
+IDBObserverChangesRecord* IDBObserverChangesRecord::create(IDBKey* key, PassRefPtr<IDBValue> value, WebIDBOperationType type)
+{
+    return new IDBObserverChangesRecord(key, value, type);
+}
+
+IDBObserverChangesRecord::IDBObserverChangesRecord(IDBKey* key, PassRefPtr<IDBValue> value, WebIDBOperationType type)
+    : m_key(key)
+    , m_value(value)
+    , m_operationType(type)
+{
+}
+
+DEFINE_TRACE(IDBObserverChangesRecord)
+{
+    visitor->trace(m_key);
+}
+
+} // namespace blink