Factor dart_init.cc out of dart_controller.cc

sky/engine/core/script/dart_init.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "sky/engine/core/script/dart_controller.h"
+#include "sky/engine/core/script/dart_init.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/trace_event/trace_event.h"
 #include "dart/runtime/bin/embedded_dart_io.h"
 #include "dart/runtime/include/dart_mirrors_api.h"
 #include "gen/sky/platform/RuntimeEnabledFeatures.h"
 #include "sky/engine/bindings/builtin.h"
 #include "sky/engine/bindings/builtin_natives.h"
 #include "sky/engine/bindings/builtin_sky.h"
-#include "sky/engine/core/app/AbstractModule.h"
-#include "sky/engine/core/app/Module.h"
-#include "sky/engine/core/dom/Element.h"
-#include "sky/engine/core/frame/LocalFrame.h"
-#include "sky/engine/core/loader/FrameLoaderClient.h"
 #include "sky/engine/core/script/dart_debugger.h"
 #include "sky/engine/core/script/dart_service_isolate.h"
 #include "sky/engine/core/script/dom_dart_state.h"
-#include "sky/engine/public/platform/Platform.h"
 #include "sky/engine/tonic/dart_api_scope.h"
 #include "sky/engine/tonic/dart_class_library.h"
 #include "sky/engine/tonic/dart_dependency_catcher.h"
 #include "sky/engine/tonic/dart_error.h"
 #include "sky/engine/tonic/dart_gc_controller.h"
 #include "sky/engine/tonic/dart_invoke.h"
 #include "sky/engine/tonic/dart_isolate_scope.h"
 #include "sky/engine/tonic/dart_library_loader.h"
 #include "sky/engine/tonic/dart_snapshot_loader.h"
 #include "sky/engine/tonic/dart_state.h"
 #include "sky/engine/tonic/dart_wrappable.h"
-#include "sky/engine/wtf/text/TextPosition.h"
 
 namespace blink {
-namespace {
 
-void CreateEmptyRootLibraryIfNeeded() {
-  if (Dart_IsNull(Dart_RootLibrary())) {
-    Dart_LoadScript(Dart_NewStringFromCString("dart:empty"), Dart_EmptyString(),
-                    0, 0);
-  }
-}
-
-} // namespace
-
-#if ENABLE(DART_STRICT)
-static const char* kCheckedModeArgs[] = {"--enable_asserts",
-                                         "--enable_type_checks",
-                                         "--error_on_bad_type",
-                                         "--error_on_bad_override",
-#if WTF_OS_IOS
-                                         "--no-profile"
-#endif
-};
-#endif
-
-extern const uint8_t* kDartVmIsolateSnapshotBuffer;
-extern const uint8_t* kDartIsolateSnapshotBuffer;
-
-DartController::DartController() : weak_factory_(this) {
-}
-
-DartController::~DartController() {
-}
-
-void DartController::DidLoadMainLibrary(String name) {
-  DCHECK(Dart_CurrentIsolate() == dart_state()->isolate());
-  DartApiScope dart_api_scope;
-
-  if (LogIfError(Dart_FinalizeLoading(true)))
-    return;
-
-  Dart_Handle library = Dart_LookupLibrary(StringToDart(dart_state(), name));
-  // TODO(eseidel): We need to load a 404 page instead!
-  if (LogIfError(library))
-    return;
-  DartInvokeAppField(library, ToDart("main"), 0, nullptr);
-}
-
-void DartController::DidLoadSnapshot() {
-  DCHECK(Dart_CurrentIsolate() == nullptr);
-  snapshot_loader_ = nullptr;
-
-  Dart_Isolate isolate = dart_state()->isolate();
-  DartIsolateScope isolate_scope(isolate);
-  DartApiScope dart_api_scope;
-
-  Dart_Handle library = Dart_RootLibrary();
-  if (LogIfError(library))
-    return;
-  DartInvokeAppField(library, ToDart("main"), 0, nullptr);
-}
-
-void DartController::RunFromSnapshot(
-    mojo::ScopedDataPipeConsumerHandle snapshot) {
-  snapshot_loader_ = adoptPtr(new DartSnapshotLoader(dart_state()));
-  snapshot_loader_->LoadSnapshot(
-      snapshot.Pass(),
-      base::Bind(&DartController::DidLoadSnapshot, weak_factory_.GetWeakPtr()));
-}
-
-void DartController::RunFromLibrary(const String& name,
-                                    DartLibraryProvider* library_provider) {
-  DartState::Scope scope(dart_state());
-  CreateEmptyRootLibraryIfNeeded();
-
-  DartLibraryLoader& loader = dart_state()->library_loader();
-  loader.set_library_provider(library_provider);
-
-  DartDependencyCatcher dependency_catcher(loader);
-  loader.LoadLibrary(name);
-  loader.WaitForDependencies(dependency_catcher.dependencies(),
-                             base::Bind(&DartController::DidLoadMainLibrary,
-                                        weak_factory_.GetWeakPtr(), name));
-}
-
-static void UnhandledExceptionCallback(Dart_Handle error) {
-  LOG(ERROR) << Dart_GetError(error);
-}
-
-static Dart_Handle LibraryTagHandler(Dart_LibraryTag tag,
-                                     Dart_Handle library,
-                                     Dart_Handle url) {
+Dart_Handle DartLibraryTagHandler(Dart_LibraryTag tag,
+                                  Dart_Handle library,
+                                  Dart_Handle url) {
   return DartLibraryLoader::HandleLibraryTag(tag, library, url);
 }
 
-static void IsolateShutdownCallback(void* callback_data) {
-  // TODO(dart)
-}
-
-static bool IsServiceIsolateURL(const char* url_name) {
-  return url_name != nullptr &&
-      String(url_name) == DART_VM_SERVICE_ISOLATE_NAME;
-}
-
-static void EnsureHandleWatcherStarted() {
+void EnsureHandleWatcherStarted() {
   static bool handle_watcher_started = false;
   if (handle_watcher_started)
     return;
 
   // TODO(dart): Call Dart_Cleanup (ensure the handle watcher isolate is closed)
   // during shutdown.
   Dart_Handle mojo_core_lib =
       Builtin::LoadAndCheckLibrary(Builtin::kMojoInternalLibrary);
   CHECK(!LogIfError((mojo_core_lib)));
   Dart_Handle handle_watcher_type = Dart_GetType(
       mojo_core_lib,
       Dart_NewStringFromCString("MojoHandleWatcher"),
       0,
       nullptr);
   CHECK(!LogIfError(handle_watcher_type));
   CHECK(!LogIfError(Dart_Invoke(
       handle_watcher_type,
       Dart_NewStringFromCString("_start"),
       0,
       nullptr)));
 
   // RunLoop until the handle watcher isolate is spun-up.
   CHECK(!LogIfError(Dart_RunLoop()));
   handle_watcher_started = true;
 }
 
+namespace {
+
+void CreateEmptyRootLibraryIfNeeded() {
+  if (Dart_IsNull(Dart_RootLibrary())) {
+    Dart_LoadScript(Dart_NewStringFromCString("dart:empty"), Dart_EmptyString(),
+                    0, 0);
+  }
+}
+
+#if ENABLE(DART_STRICT)
+static const char* kCheckedModeArgs[] = {"--enable_asserts",
+                                         "--enable_type_checks",
+                                         "--error_on_bad_type",
+                                         "--error_on_bad_override",
+#if WTF_OS_IOS
+                                         "--no-profile"
+#endif
+};
+#endif
+
+void UnhandledExceptionCallback(Dart_Handle error) {
+  LOG(ERROR) << Dart_GetError(error);
+}
+
+void IsolateShutdownCallback(void* callback_data) {
+  // TODO(dart)
+}
+
+bool IsServiceIsolateURL(const char* url_name) {
+  return url_name != nullptr &&
+      String(url_name) == DART_VM_SERVICE_ISOLATE_NAME;
+}
+
 // TODO(rafaelw): Right now this only supports the creation of the handle
 // watcher isolate and the service isolate. Presumably, we'll want application
 // isolates to spawn their own isolates.
-static Dart_Isolate IsolateCreateCallback(const char* script_uri,
+Dart_Isolate IsolateCreateCallback(const char* script_uri,
                                           const char* main,
                                           const char* package_root,
                                           Dart_IsolateFlags* flags,
                                           void* callback_data,
                                           char** error) {
   if (IsServiceIsolateURL(script_uri)) {
     CHECK(kDartIsolateSnapshotBuffer);
     DartState* dart_state = new DartState();
     Dart_Isolate isolate =
         Dart_CreateIsolate(script_uri, "main", kDartIsolateSnapshotBuffer,
                            nullptr, nullptr, error);
     CHECK(isolate) << error;
     dart_state->SetIsolate(isolate);
     CHECK(Dart_IsServiceIsolate(isolate));
-    CHECK(!LogIfError(Dart_SetLibraryTagHandler(LibraryTagHandler)));
+    CHECK(!LogIfError(Dart_SetLibraryTagHandler(DartLibraryTagHandler)));
     {
       DartApiScope apiScope;
       Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
       Builtin::SetNativeResolver(Builtin::kMojoInternalLibrary);
       Builtin::SetNativeResolver(Builtin::kIOLibrary);
       BuiltinNatives::Init(BuiltinNatives::DartIOIsolate);
       // Start the handle watcher from the service isolate so it isn't available
       // for debugging or general Observatory interaction.
       EnsureHandleWatcherStarted();
       if (RuntimeEnabledFeatures::observatoryEnabled()) {
         std::string ip = "127.0.0.1";
         const intptr_t port = 8181;
         const bool service_isolate_booted =
-            DartServiceIsolate::Startup(ip, port, LibraryTagHandler, error);
+            DartServiceIsolate::Startup(ip, port, DartLibraryTagHandler, error);
         CHECK(service_isolate_booted) << error;
       }
     }
     Dart_ExitIsolate();
     return isolate;
   }
 
   // Create & start the handle watcher isolate
   CHECK(kDartIsolateSnapshotBuffer);
   // TODO(abarth): Who deletes this DartState instance?
   DartState* dart_state = new DartState();
   Dart_Isolate isolate =
       Dart_CreateIsolate("sky:handle_watcher", "", kDartIsolateSnapshotBuffer,
                          nullptr, dart_state, error);
   CHECK(isolate) << error;
   dart_state->SetIsolate(isolate);
 
-  CHECK(!LogIfError(Dart_SetLibraryTagHandler(LibraryTagHandler)));
+  CHECK(!LogIfError(Dart_SetLibraryTagHandler(DartLibraryTagHandler)));
 
   {
     DartApiScope apiScope;
     Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
     Builtin::SetNativeResolver(Builtin::kMojoInternalLibrary);
     Builtin::SetNativeResolver(Builtin::kIOLibrary);
 
     if (!script_uri)
       CreateEmptyRootLibraryIfNeeded();
   }
 
   Dart_ExitIsolate();
 
   CHECK(Dart_IsolateMakeRunnable(isolate));
   return isolate;
 }
 
-static void CallHandleMessage(base::WeakPtr<DartState> dart_state) {
-  TRACE_EVENT0("sky", "CallHandleMessage");
+} // namespace
 
-  if (!dart_state)
-    return;
-
-  DartIsolateScope scope(dart_state->isolate());
-  DartApiScope api_scope;
-  LogIfError(Dart_HandleMessage());
-}
-
-static void MessageNotifyCallback(Dart_Isolate dest_isolate) {
-  DCHECK(Platform::current());
-  Platform::current()->mainThreadTaskRunner()->PostTask(FROM_HERE,
-      base::Bind(&CallHandleMessage, DartState::From(dest_isolate)->GetWeakPtr()));
-}
-
-void DartController::CreateIsolateFor(PassOwnPtr<DOMDartState> state) {
-  CHECK(kDartIsolateSnapshotBuffer);
-  char* error = nullptr;
-  dom_dart_state_ = state;
-  Dart_Isolate isolate = Dart_CreateIsolate(
-      dom_dart_state_->url().utf8().data(), "main", kDartIsolateSnapshotBuffer,
-      nullptr, static_cast<DartState*>(dom_dart_state_.get()), &error);
-  Dart_SetMessageNotifyCallback(MessageNotifyCallback);
-  CHECK(isolate) << error;
-  dom_dart_state_->SetIsolate(isolate);
-  Dart_SetGcCallbacks(DartGCPrologue, DartGCEpilogue);
-  CHECK(!LogIfError(Dart_SetLibraryTagHandler(LibraryTagHandler)));
-
-  {
-    DartApiScope apiScope;
-
-    Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
-    Builtin::SetNativeResolver(Builtin::kMojoInternalLibrary);
-    Builtin::SetNativeResolver(Builtin::kIOLibrary);
-    BuiltinNatives::Init(BuiltinNatives::MainIsolate);
-
-    builtin_sky_ = adoptPtr(new BuiltinSky(dart_state()));
-    dart_state()->class_library().set_provider(builtin_sky_.get());
-
-    if (dart_state()->document())
-      builtin_sky_->InstallWindow(dart_state());
-
-    EnsureHandleWatcherStarted();
-  }
-  Dart_ExitIsolate();
-}
-
-void DartController::InstallView(View* view) {
-  DartIsolateScope isolate_scope(dart_state()->isolate());
-  DartApiScope dart_api_scope;
-
-  builtin_sky_->InstallView(view);
-}
-
-void DartController::ClearForClose() {
-  // Don't use a DartIsolateScope here since we never exit the isolate.
-  Dart_EnterIsolate(dom_dart_state_->isolate());
-  Dart_ShutdownIsolate();
-  dom_dart_state_->SetIsolate(nullptr);
-  dom_dart_state_.clear();
-}
-
-void DartController::InitVM() {
+void InitDartVM() {
   int argc = 0;
   const char** argv = nullptr;
 
 #if ENABLE(DART_STRICT)
   argc = arraysize(kCheckedModeArgs);
   argv = kCheckedModeArgs;
 #endif
 
   dart::bin::BootstrapDartIo();
 
   CHECK(Dart_SetVMFlags(argc, argv));
   // This should be called before calling Dart_Initialize.
   DartDebugger::InitDebugger();
   CHECK(Dart_Initialize(kDartVmIsolateSnapshotBuffer,
                         IsolateCreateCallback,
                         nullptr,  // Isolate interrupt callback.
                         UnhandledExceptionCallback, IsolateShutdownCallback,
                         // File IO callbacks.
                         nullptr, nullptr, nullptr, nullptr, nullptr));
   // Wait for load port- ensures handle watcher and service isolates are
   // running.
   Dart_ServiceWaitForLoadPort();
 }
 
 } // namespace blink