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      1 // Copyright 2014 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/bindings/js/support.h"
      6 
      7 #include "base/bind.h"
      8 #include "gin/arguments.h"
      9 #include "gin/converter.h"
     10 #include "gin/function_template.h"
     11 #include "gin/object_template_builder.h"
     12 #include "gin/per_isolate_data.h"
     13 #include "gin/public/wrapper_info.h"
     14 #include "gin/wrappable.h"
     15 #include "mojo/bindings/js/handle.h"
     16 #include "mojo/bindings/js/waiting_callback.h"
     17 #include "mojo/public/cpp/system/core.h"
     18 
     19 namespace mojo {
     20 namespace js {
     21 
     22 namespace {
     23 
     24 WaitingCallback* AsyncWait(const gin::Arguments& args, mojo::Handle handle,
     25                            MojoHandleSignals signals,
     26                            v8::Handle<v8::Function> callback) {
     27   return WaitingCallback::Create(args.isolate(), callback, handle, signals)
     28              .get();
     29 }
     30 
     31 void CancelWait(WaitingCallback* waiting_callback) {
     32   waiting_callback->Cancel();
     33 }
     34 
     35 gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin };
     36 
     37 }  // namespace
     38 
     39 const char Support::kModuleName[] = "mojo/public/js/bindings/support";
     40 
     41 v8::Local<v8::Value> Support::GetModule(v8::Isolate* isolate) {
     42   gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
     43   v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(
     44       &g_wrapper_info);
     45 
     46   if (templ.IsEmpty()) {
     47     templ = gin::ObjectTemplateBuilder(isolate)
     48                 .SetMethod("asyncWait", AsyncWait)
     49                 .SetMethod("cancelWait", CancelWait)
     50                 .Build();
     51 
     52     data->SetObjectTemplate(&g_wrapper_info, templ);
     53   }
     54 
     55   return templ->NewInstance();
     56 }
     57 
     58 }  // namespace js
     59 }  // namespace mojo
     60