79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
// Copyright (c) 2017 GitHub, 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/renderer/web_worker_observer.h"
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#include "base/lazy_instance.h"
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#include "base/threading/thread_local.h"
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#include "shell/common/api/electron_bindings.h"
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#include "shell/common/asar/asar_util.h"
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#include "shell/common/gin_helper/event_emitter_caller.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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namespace electron {
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namespace {
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static base::LazyInstance<
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base::ThreadLocalPointer<WebWorkerObserver>>::DestructorAtExit lazy_tls =
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LAZY_INSTANCE_INITIALIZER;
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} // namespace
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// static
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WebWorkerObserver* WebWorkerObserver::GetCurrent() {
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WebWorkerObserver* self = lazy_tls.Pointer()->Get();
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return self ? self : new WebWorkerObserver;
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}
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WebWorkerObserver::WebWorkerObserver()
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: node_bindings_(
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NodeBindings::Create(NodeBindings::BrowserEnvironment::WORKER)),
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electron_bindings_(new ElectronBindings(node_bindings_->uv_loop())) {
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lazy_tls.Pointer()->Set(this);
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}
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WebWorkerObserver::~WebWorkerObserver() {
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lazy_tls.Pointer()->Set(nullptr);
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node::FreeEnvironment(node_bindings_->uv_env());
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node::FreeIsolateData(node_bindings_->isolate_data());
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asar::ClearArchives();
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}
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void WebWorkerObserver::WorkerScriptReadyForEvaluation(
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v8::Local<v8::Context> worker_context) {
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v8::Context::Scope context_scope(worker_context);
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// Start the embed thread.
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node_bindings_->PrepareMessageLoop();
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// Setup node environment for each window.
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bool initialized = node::InitializeContext(worker_context);
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CHECK(initialized);
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node::Environment* env =
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node_bindings_->CreateEnvironment(worker_context, nullptr);
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// Add Electron extended APIs.
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electron_bindings_->BindTo(env->isolate(), env->process_object());
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// Load everything.
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node_bindings_->LoadEnvironment(env);
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// Make uv loop being wrapped by window context.
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node_bindings_->set_uv_env(env);
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// Give the node loop a run to make sure everything is ready.
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node_bindings_->RunMessageLoop();
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}
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void WebWorkerObserver::ContextWillDestroy(v8::Local<v8::Context> context) {
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node::Environment* env = node::Environment::GetCurrent(context);
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if (env)
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gin_helper::EmitEvent(env->isolate(), env->process_object(), "exit");
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delete this;
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}
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} // namespace electron
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