| // Copyright (c) 2013 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. |
| |
| #ifndef CONTENT_RENDERER_PEPPER_V8_VAR_CONVERTER_H |
| #define CONTENT_RENDERER_PEPPER_V8_VAR_CONVERTER_H |
| |
| |
| #include "base/basictypes.h" |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/message_loop/message_loop_proxy.h" |
| #include "ppapi/c/pp_instance.h" |
| #include "ppapi/c/pp_var.h" |
| #include "v8/include/v8.h" |
| #include "content/common/content_export.h" |
| |
| namespace ppapi { |
| class ScopedPPVar; |
| } |
| |
| namespace content { |
| |
| class ResourceConverter; |
| |
| class CONTENT_EXPORT V8VarConverter { |
| public: |
| explicit V8VarConverter(PP_Instance instance); |
| // Constructor for testing. |
| V8VarConverter( |
| PP_Instance instance, |
| const scoped_refptr<base::MessageLoopProxy>& message_loop_proxy, |
| scoped_ptr<ResourceConverter> resource_converter); |
| ~V8VarConverter(); |
| |
| // Converts the given PP_Var to a v8::Value. True is returned upon success. |
| bool ToV8Value(const PP_Var& var, |
| v8::Handle<v8::Context> context, |
| v8::Handle<v8::Value>* result); |
| |
| // Converts the given v8::Value to a PP_Var. Every PP_Var in the reference |
| // graph in the result will have a refcount equal to the number of references |
| // to it in the graph. The root of the result will have one additional |
| // reference. The callback is run when conversion is complete with the |
| // resulting var and a bool indicating success or failure. Conversion is |
| // asynchronous because converting some resources may result in communication |
| // across IPC. |context| is guaranteed to only be used synchronously. |
| void FromV8Value( |
| v8::Handle<v8::Value> val, |
| v8::Handle<v8::Context> context, |
| const base::Callback<void(const ppapi::ScopedPPVar&, bool)>& callback); |
| |
| private: |
| // The message loop to run the callback to |FromV8Value| from. |
| scoped_refptr<base::MessageLoopProxy> message_loop_proxy_; |
| |
| // The converter to use for converting V8 vars to resources. |
| scoped_ptr<ResourceConverter> resource_converter_; |
| |
| DISALLOW_COPY_AND_ASSIGN(V8VarConverter); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_V8_VAR_CONVERTER_H |