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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GIN_SHELL_RUNNER_H_
#define GIN_SHELL_RUNNER_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "gin/runner.h"
namespace gin {
class ContextHolder;
class ShellRunner;
class TryCatch;
// Subclass ShellRunnerDelegate to customize the behavior of ShellRunner.
// Typical embedders will want to subclass one of the specialized
// ShellRunnerDelegates, such as ModuleRunnerDelegate.
class GIN_EXPORT ShellRunnerDelegate {
public:
ShellRunnerDelegate();
virtual ~ShellRunnerDelegate();
// Returns the template for the global object.
virtual v8::Local<v8::ObjectTemplate> GetGlobalTemplate(
ShellRunner* runner,
v8::Isolate* isolate);
virtual void DidCreateContext(ShellRunner* runner);
virtual void WillRunScript(ShellRunner* runner);
virtual void DidRunScript(ShellRunner* runner);
virtual void UnhandledException(ShellRunner* runner, TryCatch& try_catch);
};
// ShellRunner executes the script/functions directly in a v8::Context.
// ShellRunner owns a ContextHolder and v8::Context, both of which are destroyed
// when the ShellRunner is deleted.
class GIN_EXPORT ShellRunner : public Runner {
public:
ShellRunner(ShellRunnerDelegate* delegate, v8::Isolate* isolate);
ShellRunner(const ShellRunner&) = delete;
ShellRunner& operator=(const ShellRunner&) = delete;
~ShellRunner() override;
// 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.
// Runner overrides:
v8::MaybeLocal<v8::Value> Run(const std::string& source,
const std::string& resource_name) override;
ContextHolder* GetContextHolder() override;
private:
friend class Scope;
v8::MaybeLocal<v8::Value> Run(v8::Local<v8::Script> script);
raw_ptr<ShellRunnerDelegate> delegate_;
std::unique_ptr<ContextHolder> context_holder_;
};
} // namespace gin
#endif // GIN_SHELL_RUNNER_H_
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