mojo_runner_delegate.cc revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "mojo/apps/js/mojo_runner_delegate.h"
6
7#include "base/bind.h"
8#include "base/path_service.h"
9#include "gin/converter.h"
10#include "gin/modules/console.h"
11#include "gin/modules/module_registry.h"
12#include "gin/try_catch.h"
13#include "mojo/apps/js/bindings/core.h"
14#include "mojo/apps/js/bindings/support.h"
15#include "mojo/apps/js/bindings/threading.h"
16
17namespace mojo {
18namespace apps {
19
20namespace {
21
22// TODO(abarth): Rather than loading these modules from the file system, we
23// should load them from the network via Mojo IPC.
24std::vector<base::FilePath> GetModuleSearchPaths() {
25  std::vector<base::FilePath> search_paths(2);
26  PathService::Get(base::DIR_SOURCE_ROOT, &search_paths[0]);
27  PathService::Get(base::DIR_EXE, &search_paths[1]);
28  search_paths[1] = search_paths[1].AppendASCII("gen");
29  return search_paths;
30}
31
32void StartCallback(base::WeakPtr<gin::Runner> runner,
33                   MojoHandle pipe,
34                   v8::Handle<v8::Value> module) {
35  v8::Isolate* isolate = runner->isolate();
36  v8::Handle<v8::Function> start;
37  CHECK(gin::ConvertFromV8(isolate, module, &start));
38
39  v8::Handle<v8::Value> args[] = { gin::ConvertToV8(isolate, pipe) };
40  runner->Call(start, runner->global(), 1, args);
41}
42
43}  // namespace
44
45MojoRunnerDelegate::MojoRunnerDelegate()
46    : ModuleRunnerDelegate(GetModuleSearchPaths()) {
47  AddBuiltinModule(Threading::kModuleName, Threading::GetTemplate);
48  AddBuiltinModule(gin::Console::kModuleName, gin::Console::GetTemplate);
49  AddBuiltinModule(js::Core::kModuleName, js::Core::GetTemplate);
50  AddBuiltinModule(js::Support::kModuleName, js::Support::GetTemplate);
51}
52
53MojoRunnerDelegate::~MojoRunnerDelegate() {
54}
55
56void MojoRunnerDelegate::Start(gin::Runner* runner,
57                               MojoHandle pipe,
58                               const std::string& module) {
59  gin::Runner::Scope scope(runner);
60  gin::ModuleRegistry* registry = gin::ModuleRegistry::From(runner->context());
61  registry->LoadModule(runner->isolate(), module,
62                       base::Bind(StartCallback, runner->GetWeakPtr(), pipe));
63  AttemptToLoadMoreModules(runner);
64}
65
66void MojoRunnerDelegate::UnhandledException(gin::Runner* runner,
67                                            gin::TryCatch& try_catch) {
68  gin::ModuleRunnerDelegate::UnhandledException(runner, try_catch);
69  LOG(ERROR) << try_catch.GetStackTrace();
70}
71
72}  // namespace apps
73}  // namespace mojo
74