104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
// Copyright (c) 2022 Microsoft, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/services/node/node_service.h"
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#include <utility>
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#include "base/command_line.h"
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#include "base/strings/utf_string_conversions.h"
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#include "shell/browser/javascript_environment.h"
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#include "shell/common/api/electron_bindings.h"
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#include "shell/common/gin_converters/file_path_converter.h"
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#include "shell/common/gin_helper/dictionary.h"
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#include "shell/common/node_bindings.h"
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#include "shell/common/node_includes.h"
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#include "shell/services/node/parent_port.h"
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namespace electron {
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NodeService::NodeService(
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mojo::PendingReceiver<node::mojom::NodeService> receiver)
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: node_bindings_(
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NodeBindings::Create(NodeBindings::BrowserEnvironment::kUtility)),
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electron_bindings_(
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std::make_unique<ElectronBindings>(node_bindings_->uv_loop())) {
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if (receiver.is_valid())
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receiver_.Bind(std::move(receiver));
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}
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NodeService::~NodeService() {
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if (!node_env_stopped_) {
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node_env_->set_trace_sync_io(false);
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js_env_->DestroyMicrotasksRunner();
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node::Stop(node_env_.get(), node::StopFlags::kDoNotTerminateIsolate);
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}
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}
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void NodeService::Initialize(node::mojom::NodeServiceParamsPtr params) {
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if (NodeBindings::IsInitialized())
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return;
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ParentPort::GetInstance()->Initialize(std::move(params->port));
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js_env_ = std::make_unique<JavascriptEnvironment>(node_bindings_->uv_loop());
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v8::HandleScope scope(js_env_->isolate());
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node_bindings_->Initialize(js_env_->isolate()->GetCurrentContext());
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// Append program path for process.argv0
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auto program = base::CommandLine::ForCurrentProcess()->GetProgram();
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#if defined(OS_WIN)
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params->args.insert(params->args.begin(), base::WideToUTF8(program.value()));
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#else
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params->args.insert(params->args.begin(), program.value());
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#endif
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// Create the global environment.
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node_env_ = node_bindings_->CreateEnvironment(
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js_env_->isolate()->GetCurrentContext(), js_env_->platform(),
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params->args, params->exec_args);
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node::SetProcessExitHandler(
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node_env_.get(), [this](node::Environment* env, int exit_code) {
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// Destroy node platform.
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env->set_trace_sync_io(false);
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js_env_->DestroyMicrotasksRunner();
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node::Stop(env, node::StopFlags::kDoNotTerminateIsolate);
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node_env_stopped_ = true;
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receiver_.ResetWithReason(exit_code, "");
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});
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node_env_->set_trace_sync_io(node_env_->options()->trace_sync_io);
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// Add Electron extended APIs.
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electron_bindings_->BindTo(node_env_->isolate(), node_env_->process_object());
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// Add entry script to process object.
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gin_helper::Dictionary process(node_env_->isolate(),
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node_env_->process_object());
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process.SetHidden("_serviceStartupScript", params->script);
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// Setup microtask runner.
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js_env_->CreateMicrotasksRunner();
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// Wrap the uv loop with global env.
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node_bindings_->set_uv_env(node_env_.get());
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// LoadEnvironment should be called after setting up
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// JavaScriptEnvironment including the microtask runner
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// since this call will start compilation and execution
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// of the entry script. If there is an uncaught exception
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// the exit handler set above will be triggered and it expects
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// both Node Env and JavaScriptEnviroment are setup to perform
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// a clean shutdown of this process.
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node_bindings_->LoadEnvironment(node_env_.get());
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// Run entry script.
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node_bindings_->PrepareEmbedThread();
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node_bindings_->StartPolling();
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}
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} // namespace electron
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