electron/shell/renderer/web_worker_observer.cc
Cheng Zhao 2c23e44ed9
chore: remove native_mate (Part 3) (#20131)
* use gin converter in atom_api_menu

* please only put necessary includes in header

Having include in header means they have dependency relationship,
putting arbitrary includes really really really really really makes
refacoring much harder.

* remove some simple uses of callback_converter_deprecated.h

* use gin callback converter in file_dialog code

* use gin in ErrorThrower

* use gin in atom_bundle_mover

* fix mistake in node stream

* deprecate native_mate version of event_emitter_caller

* use gin in node_bindings

* remove usages of native_mate event_emitter_caller.h except for EventEmitter

* fix compilation on Windows

* gin::Arguments behaves differently on GetNext

* just use StringToV8
2019-09-06 14:52:54 +09:00

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2.3 KiB
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// Copyright (c) 2017 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/renderer/web_worker_observer.h"
#include "base/lazy_instance.h"
#include "base/threading/thread_local.h"
#include "shell/common/api/electron_bindings.h"
#include "shell/common/asar/asar_util.h"
#include "shell/common/gin_helper/event_emitter_caller.h"
#include "shell/common/node_bindings.h"
#include "shell/common/node_includes.h"
namespace electron {
namespace {
static base::LazyInstance<
base::ThreadLocalPointer<WebWorkerObserver>>::DestructorAtExit lazy_tls =
LAZY_INSTANCE_INITIALIZER;
} // namespace
// static
WebWorkerObserver* WebWorkerObserver::GetCurrent() {
WebWorkerObserver* self = lazy_tls.Pointer()->Get();
return self ? self : new WebWorkerObserver;
}
WebWorkerObserver::WebWorkerObserver()
: node_bindings_(
NodeBindings::Create(NodeBindings::BrowserEnvironment::WORKER)),
electron_bindings_(new ElectronBindings(node_bindings_->uv_loop())) {
lazy_tls.Pointer()->Set(this);
}
WebWorkerObserver::~WebWorkerObserver() {
lazy_tls.Pointer()->Set(nullptr);
node::FreeEnvironment(node_bindings_->uv_env());
asar::ClearArchives();
}
void WebWorkerObserver::ContextCreated(v8::Local<v8::Context> worker_context) {
v8::Context::Scope context_scope(worker_context);
// Start the embed thread.
node_bindings_->PrepareMessageLoop();
// Setup node environment for each window.
v8::Local<v8::Context> context = node::MaybeInitializeContext(worker_context);
DCHECK(!context.IsEmpty());
node::Environment* env =
node_bindings_->CreateEnvironment(context, nullptr, true);
// Add Electron extended APIs.
electron_bindings_->BindTo(env->isolate(), env->process_object());
// Load everything.
node_bindings_->LoadEnvironment(env);
// Make uv loop being wrapped by window context.
node_bindings_->set_uv_env(env);
// Give the node loop a run to make sure everything is ready.
node_bindings_->RunMessageLoop();
}
void WebWorkerObserver::ContextWillDestroy(v8::Local<v8::Context> context) {
node::Environment* env = node::Environment::GetCurrent(context);
if (env)
gin_helper::EmitEvent(env->isolate(), env->process_object(), "exit");
delete this;
}
} // namespace electron