123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263 |
- // Copyright 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 GIN_RUNNER_H_
- #define GIN_RUNNER_H_
- #include <string>
- #include "base/memory/weak_ptr.h"
- #include "gin/gin_export.h"
- #include "gin/public/context_holder.h"
- #include "v8/include/v8-forward.h"
- #include "v8/include/v8-isolate.h"
- namespace gin {
- // Runner is responsible for running code in a v8::Context.
- class GIN_EXPORT Runner {
- public:
- Runner();
- Runner(const Runner&) = delete;
- Runner& operator=(const Runner&) = delete;
- virtual ~Runner();
- // Before running script in this context, you'll need to enter the runner's
- // context by creating an instance of Runner::Scope on the stack.
- virtual v8::MaybeLocal<v8::Value> Run(const std::string& source,
- const std::string& resource_name) = 0;
- virtual ContextHolder* GetContextHolder() = 0;
- v8::Local<v8::Object> global() {
- return GetContextHolder()->context()->Global();
- }
- // Useful for running script in this context asynchronously. Rather than
- // holding a raw pointer to the runner, consider holding a WeakPtr.
- base::WeakPtr<Runner> GetWeakPtr() {
- return weak_factory_.GetWeakPtr();
- }
- class GIN_EXPORT Scope {
- public:
- explicit Scope(Runner* runner);
- Scope(const Scope&) = delete;
- Scope& operator=(const Scope&) = delete;
- ~Scope();
- private:
- v8::Isolate::Scope isolate_scope_;
- v8::HandleScope handle_scope_;
- v8::Context::Scope scope_;
- };
- private:
- friend class Scope;
- base::WeakPtrFactory<Runner> weak_factory_{this};
- };
- } // namespace gin
- #endif // GIN_RUNNER_H_
|