atom/browser/javascript_environment.cc

   1 // Copyright (c) 2013 GitHub, Inc.
   2 // Use of this source code is governed by the MIT license that can be
   3 // found in the LICENSE file.
   4
   5 #include "atom/browser/javascript_environment.h"
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "content/public/common/content_switches.h"
  12 #include "gin/array_buffer.h"
  13 #include "gin/v8_initializer.h"
  14 #include "tizen/common/env_variables.h"
  15
  16 #include "atom/common/node_includes.h"
  17
  18 namespace atom {
  19
  20 JavascriptEnvironment::JavascriptEnvironment()
  21     : initialized_(Initialize()),
  22       isolate_(isolate_holder_.isolate()),
  23       isolate_scope_(isolate_),
  24       handle_scope_(isolate_),
  25       context_(isolate_, v8::Context::New(isolate_)),
  26       context_scope_(v8::Local<v8::Context>::New(isolate_, context_)) {
  27 }
  28
  29 void JavascriptEnvironment::OnMessageLoopCreated() {
  30   isolate_holder_.AddRunMicrotasksObserver();
  31 }
  32
  33 void JavascriptEnvironment::OnMessageLoopDestroying() {
  34   isolate_holder_.RemoveRunMicrotasksObserver();
  35 }
  36
  37 void JavascriptEnvironment::SetupLocker() {
  38   if (!::tizen::is_single_process)
  39     locker_.reset(new v8::Locker(isolate_));
  40 }
  41
  42 bool JavascriptEnvironment::Initialize() {
  43   auto cmd = base::CommandLine::ForCurrentProcess();
  44
  45   // --js-flags.
  46   std::string js_flags = cmd->GetSwitchValueASCII(switches::kJavaScriptFlags);
  47   if (!js_flags.empty())
  48     v8::V8::SetFlagsFromString(js_flags.c_str(), js_flags.size());
  49
  50   gin::IsolateHolder::Initialize(gin::IsolateHolder::kNonStrictMode,
  51                                  gin::IsolateHolder::kStableV8Extras,
  52                                  gin::ArrayBufferAllocator::SharedInstance());
  53   return true;
  54 }
  55
  56 NodeEnvironment::NodeEnvironment(node::Environment* env) : env_(env) {
  57 }
  58
  59 NodeEnvironment::~NodeEnvironment() {
  60   node::FreeEnvironment(env_);
  61 }
  62
  63 }  // namespace atom