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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_RENDERER_V8_VALUE_CONVERTER_IMPL_H_
      6 #define CONTENT_RENDERER_V8_VALUE_CONVERTER_IMPL_H_
      7 
      8 #include <map>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/compiler_specific.h"
     12 #include "content/common/content_export.h"
     13 #include "content/public/renderer/v8_value_converter.h"
     14 
     15 namespace base {
     16 class BinaryValue;
     17 class DictionaryValue;
     18 class ListValue;
     19 class Value;
     20 }
     21 
     22 namespace content {
     23 
     24 class CONTENT_EXPORT V8ValueConverterImpl : public V8ValueConverter {
     25  public:
     26   V8ValueConverterImpl();
     27 
     28   // V8ValueConverter implementation.
     29   virtual void SetDateAllowed(bool val) OVERRIDE;
     30   virtual void SetRegExpAllowed(bool val) OVERRIDE;
     31   virtual void SetFunctionAllowed(bool val) OVERRIDE;
     32   virtual void SetStripNullFromObjects(bool val) OVERRIDE;
     33   virtual void SetStrategy(Strategy* strategy) OVERRIDE;
     34   virtual v8::Handle<v8::Value> ToV8Value(
     35       const base::Value* value,
     36       v8::Handle<v8::Context> context) const OVERRIDE;
     37   virtual base::Value* FromV8Value(
     38       v8::Handle<v8::Value> value,
     39       v8::Handle<v8::Context> context) const OVERRIDE;
     40 
     41  private:
     42   friend class ScopedAvoidIdentityHashForTesting;
     43 
     44   class FromV8ValueState;
     45 
     46   v8::Handle<v8::Value> ToV8ValueImpl(const base::Value* value) const;
     47   v8::Handle<v8::Value> ToV8Array(const base::ListValue* list) const;
     48   v8::Handle<v8::Value> ToV8Object(
     49       const base::DictionaryValue* dictionary) const;
     50   v8::Handle<v8::Value> ToArrayBuffer(const base::BinaryValue* value) const;
     51 
     52   base::Value* FromV8ValueImpl(v8::Handle<v8::Value> value,
     53                                FromV8ValueState* state) const;
     54   base::Value* FromV8Array(v8::Handle<v8::Array> array,
     55                            FromV8ValueState* state) const;
     56 
     57   // This will convert objects of type ArrayBuffer or any of the
     58   // ArrayBufferView subclasses. The return value will be NULL if |value| is
     59   // not one of these types.
     60   base::BinaryValue* FromV8Buffer(v8::Handle<v8::Value> value) const;
     61 
     62   base::Value* FromV8Object(v8::Handle<v8::Object> object,
     63                             FromV8ValueState* state) const;
     64 
     65   // If true, we will convert Date JavaScript objects to doubles.
     66   bool date_allowed_;
     67 
     68   // If true, we will convert RegExp JavaScript objects to string.
     69   bool reg_exp_allowed_;
     70 
     71   // If true, we will convert Function JavaScript objects to dictionaries.
     72   bool function_allowed_;
     73 
     74   // If true, undefined and null values are ignored when converting v8 objects
     75   // into Values.
     76   bool strip_null_from_objects_;
     77 
     78   bool avoid_identity_hash_for_testing_;
     79 
     80   // Strategy object that changes the converter's behavior.
     81   Strategy* strategy_;
     82 
     83   DISALLOW_COPY_AND_ASSIGN(V8ValueConverterImpl);
     84 };
     85 
     86 }  // namespace content
     87 
     88 #endif  // CONTENT_RENDERER_V8_VALUE_CONVERTER_IMPL_H_
     89