// Copyright (c) 2015 GitHub, Inc. All rights reserved. // Use of this source code is governed by the MIT license that can be // found in the LICENSE file. #ifndef ATOM_COMMON_NATIVE_MATE_CONVERTERS_CALLBACK_H_ #define ATOM_COMMON_NATIVE_MATE_CONVERTERS_CALLBACK_H_ #include <vector> #include "atom/common/api/locker.h" #include "base/bind.h" #include "base/callback.h" #include "native_mate/function_template.h" #include "native_mate/scoped_persistent.h" #include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h" namespace mate { namespace internal { typedef scoped_refptr<RefCountedPersistent<v8::Function> > SafeV8Function; template <typename Sig> struct V8FunctionInvoker {}; template <typename... ArgTypes> struct V8FunctionInvoker<v8::Local<v8::Value>(ArgTypes...)> { static v8::Local<v8::Value> Go(v8::Isolate* isolate, SafeV8Function function, ArgTypes... raw) { Locker locker(isolate); v8::EscapableHandleScope handle_scope(isolate); scoped_ptr<blink::WebScopedRunV8Script> script_scope( Locker::IsBrowserProcess() ? nullptr : new blink::WebScopedRunV8Script(isolate)); v8::Local<v8::Function> holder = function->NewHandle(); v8::Local<v8::Context> context = holder->CreationContext(); v8::Context::Scope context_scope(context); std::vector<v8::Local<v8::Value>> args = { ConvertToV8(isolate, raw)... }; v8::Local<v8::Value> ret(holder->Call(holder, args.size(), &args.front())); return handle_scope.Escape(ret); } }; template <typename... ArgTypes> struct V8FunctionInvoker<void(ArgTypes...)> { static void Go(v8::Isolate* isolate, SafeV8Function function, ArgTypes... raw) { Locker locker(isolate); v8::HandleScope handle_scope(isolate); scoped_ptr<blink::WebScopedRunV8Script> script_scope( Locker::IsBrowserProcess() ? nullptr : new blink::WebScopedRunV8Script(isolate)); v8::Local<v8::Function> holder = function->NewHandle(); v8::Local<v8::Context> context = holder->CreationContext(); v8::Context::Scope context_scope(context); std::vector<v8::Local<v8::Value>> args = { ConvertToV8(isolate, raw)... }; holder->Call(holder, args.size(), &args.front()); } }; template <typename ReturnType, typename... ArgTypes> struct V8FunctionInvoker<ReturnType(ArgTypes...)> { static ReturnType Go(v8::Isolate* isolate, SafeV8Function function, ArgTypes... raw) { Locker locker(isolate); v8::HandleScope handle_scope(isolate); scoped_ptr<blink::WebScopedRunV8Script> script_scope( Locker::IsBrowserProcess() ? nullptr : new blink::WebScopedRunV8Script(isolate)); v8::Local<v8::Function> holder = function->NewHandle(); v8::Local<v8::Context> context = holder->CreationContext(); v8::Context::Scope context_scope(context); ReturnType ret; std::vector<v8::Local<v8::Value>> args = { ConvertToV8(isolate, raw)... }; v8::Local<v8::Value> val(holder->Call(holder, args.size(), &args.front())); Converter<ReturnType>::FromV8(isolate, val, &ret); return ret; } }; } // namespace internal template<typename Sig> struct Converter<base::Callback<Sig> > { static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, const base::Callback<Sig>& val) { return CreateFunctionTemplate(isolate, val)->GetFunction(); } static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, base::Callback<Sig>* out) { if (!val->IsFunction()) return false; internal::SafeV8Function function( new RefCountedPersistent<v8::Function>(isolate, val)); *out = base::Bind(&internal::V8FunctionInvoker<Sig>::Go, isolate, function); return true; } }; } // namespace mate #endif // ATOM_COMMON_NATIVE_MATE_CONVERTERS_CALLBACK_H_