| /* |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "IDBBindingUtilities.h" |
| |
| #if ENABLE(INDEXED_DATABASE) |
| |
| #include "IDBDatabaseException.h" |
| #include "IDBKey.h" |
| #include "IDBKeyPath.h" |
| #include "SerializedScriptValue.h" |
| #include "V8Binding.h" |
| #include "V8IDBKey.h" |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| PassRefPtr<IDBKey> createIDBKeyFromValue(v8::Handle<v8::Value> value) |
| { |
| if (value->IsNull()) |
| return IDBKey::createNull(); |
| if (value->IsNumber()) |
| return IDBKey::createNumber(value->NumberValue()); |
| if (value->IsString()) |
| return IDBKey::createString(v8ValueToWebCoreString(value)); |
| if (value->IsDate()) |
| return IDBKey::createDate(value->NumberValue()); |
| |
| return 0; // Signals type error. |
| } |
| |
| namespace { |
| |
| template<typename T> |
| bool getValueFrom(T indexOrName, v8::Handle<v8::Value>& v8Value) |
| { |
| v8::Local<v8::Object> object = v8Value->ToObject(); |
| if (!object->Has(indexOrName)) |
| return false; |
| v8Value = object->Get(indexOrName); |
| return true; |
| } |
| |
| template<typename T> |
| bool setValue(v8::Handle<v8::Value>& v8Object, T indexOrName, const v8::Handle<v8::Value>& v8Value) |
| { |
| v8::Local<v8::Object> object = v8Object->ToObject(); |
| ASSERT(!object->Has(indexOrName)); |
| return object->Set(indexOrName, v8Value); |
| } |
| |
| bool get(v8::Handle<v8::Value>& object, const IDBKeyPathElement& keyPathElement) |
| { |
| switch (keyPathElement.type) { |
| case IDBKeyPathElement::IsIndexed: |
| return object->IsArray() && getValueFrom(keyPathElement.index, object); |
| case IDBKeyPathElement::IsNamed: |
| return object->IsObject() && getValueFrom(v8String(keyPathElement.identifier), object); |
| default: |
| ASSERT_NOT_REACHED(); |
| } |
| return false; |
| } |
| |
| bool set(v8::Handle<v8::Value>& object, const IDBKeyPathElement& keyPathElement, const v8::Handle<v8::Value>& v8Value) |
| { |
| switch (keyPathElement.type) { |
| case IDBKeyPathElement::IsIndexed: |
| return object->IsArray() && setValue(object, keyPathElement.index, v8Value); |
| case IDBKeyPathElement::IsNamed: |
| return object->IsObject() && setValue(object, v8String(keyPathElement.identifier), v8Value); |
| default: |
| ASSERT_NOT_REACHED(); |
| } |
| return false; |
| } |
| |
| class LocalContext { |
| public: |
| LocalContext() |
| : m_context(v8::Context::New()) |
| { |
| m_context->Enter(); |
| } |
| |
| ~LocalContext() |
| { |
| m_context->Exit(); |
| m_context.Dispose(); |
| } |
| |
| private: |
| v8::HandleScope m_scope; |
| v8::Persistent<v8::Context> m_context; |
| }; |
| |
| v8::Handle<v8::Value> getNthValueOnKeyPath(v8::Handle<v8::Value>& rootValue, const Vector<IDBKeyPathElement>& keyPathElements, size_t index) |
| { |
| v8::Handle<v8::Value> currentValue(rootValue); |
| |
| ASSERT(index <= keyPathElements.size()); |
| for (size_t i = 0; i < index; ++i) { |
| if (!get(currentValue, keyPathElements[i])) |
| return v8::Handle<v8::Value>(); |
| } |
| |
| return currentValue; |
| } |
| |
| } // anonymous namespace |
| |
| PassRefPtr<IDBKey> createIDBKeyFromSerializedValueAndKeyPath(PassRefPtr<SerializedScriptValue> value, const Vector<IDBKeyPathElement>& keyPath) |
| { |
| LocalContext localContext; |
| v8::Handle<v8::Value> v8Value(value->deserialize()); |
| v8::Handle<v8::Value> v8Key(getNthValueOnKeyPath(v8Value, keyPath, keyPath.size())); |
| if (v8Key.IsEmpty()) |
| return 0; |
| return createIDBKeyFromValue(v8Key); |
| } |
| |
| PassRefPtr<SerializedScriptValue> injectIDBKeyIntoSerializedValue(PassRefPtr<IDBKey> key, PassRefPtr<SerializedScriptValue> value, const Vector<IDBKeyPathElement>& keyPath) |
| { |
| LocalContext localContext; |
| if (!keyPath.size()) |
| return 0; |
| |
| v8::Handle<v8::Value> v8Value(value->deserialize()); |
| v8::Handle<v8::Value> parent(getNthValueOnKeyPath(v8Value, keyPath, keyPath.size() - 1)); |
| if (parent.IsEmpty()) |
| return 0; |
| |
| if (!set(parent, keyPath.last(), toV8(key.get()))) |
| return 0; |
| |
| return SerializedScriptValue::create(v8Value); |
| } |
| |
| } // namespace WebCore |
| |
| #endif |