electron/common/v8_value_converter_impl.h
2013-04-17 20:05:43 +08:00

86 lines
3 KiB
C++

// Copyright (c) 2013 GitHub, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ATOM_COMMON_V8_VALUE_CONVERTER_IMPL_H_
#define ATOM_COMMON_V8_VALUE_CONVERTER_IMPL_H_
#include <map>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "content/public/renderer/v8_value_converter.h"
namespace base {
class BinaryValue;
class DictionaryValue;
class ListValue;
class Value;
}
namespace atom {
// The content::V8ValueConverter depends on WebKit, we get rid of the WebKit
// dependency by removing support of binary data.
class V8ValueConverterImpl : public content::V8ValueConverter {
public:
V8ValueConverterImpl();
// V8ValueConverter implementation.
virtual void SetDateAllowed(bool val) OVERRIDE;
virtual void SetRegExpAllowed(bool val) OVERRIDE;
virtual void SetFunctionAllowed(bool val) OVERRIDE;
virtual void SetStripNullFromObjects(bool val) OVERRIDE;
virtual v8::Handle<v8::Value> ToV8Value(
const base::Value* value,
v8::Handle<v8::Context> context) const OVERRIDE;
virtual base::Value* FromV8Value(
v8::Handle<v8::Value> value,
v8::Handle<v8::Context> context) const OVERRIDE;
private:
friend class ScopedAvoidIdentityHashForTesting;
typedef std::multimap<int, v8::Handle<v8::Object> > HashToHandleMap;
v8::Handle<v8::Value> ToV8ValueImpl(const base::Value* value) const;
v8::Handle<v8::Value> ToV8Array(const base::ListValue* list) const;
v8::Handle<v8::Value> ToV8Object(
const base::DictionaryValue* dictionary) const;
base::Value* FromV8ValueImpl(v8::Handle<v8::Value> value,
HashToHandleMap* unique_map) const;
base::Value* FromV8Array(v8::Handle<v8::Array> array,
HashToHandleMap* unique_map) const;
base::Value* FromV8Object(v8::Handle<v8::Object> object,
HashToHandleMap* unique_map) const;
// If |handle| is not in |map|, then add it to |map| and return true.
// Otherwise do nothing and return false. Here "A is unique" means that no
// other handle B in the map points to the same object as A. Note that A can
// be unique even if there already is another handle with the same identity
// hash (key) in the map, because two objects can have the same hash.
bool UpdateAndCheckUniqueness(HashToHandleMap* map,
v8::Handle<v8::Object> handle) const;
// If true, we will convert Date JavaScript objects to doubles.
bool date_allowed_;
// If true, we will convert RegExp JavaScript objects to string.
bool reg_exp_allowed_;
// If true, we will convert Function JavaScript objects to dictionaries.
bool function_allowed_;
// If true, undefined and null values are ignored when converting v8 objects
// into Values.
bool strip_null_from_objects_;
bool avoid_identity_hash_for_testing_;
DISALLOW_COPY_AND_ASSIGN(V8ValueConverterImpl);
};
} // namespace atom
#endif // ATOM_COMMON_V8_VALUE_CONVERTER_IMPL_H_