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      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/bindings/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/apps/js/bindings/handle.h"
     16 #include "mojo/apps/js/bindings/waiting_callback.h"
     17 #include "mojo/public/bindings/lib/bindings_support.h"
     18 
     19 namespace mojo {
     20 namespace js {
     21 
     22 namespace {
     23 
     24 WaitingCallback* AsyncWait(const gin::Arguments& args, mojo::Handle handle,
     25                            MojoWaitFlags flags,
     26                            v8::Handle<v8::Function> callback) {
     27   gin::Handle<WaitingCallback> waiting_callback =
     28       WaitingCallback::Create(args.isolate(), callback);
     29 
     30   BindingsSupport::AsyncWaitID wait_id = BindingsSupport::Get()->AsyncWait(
     31       handle, flags, waiting_callback.get());
     32 
     33   waiting_callback->set_wait_id(wait_id);
     34 
     35   return waiting_callback.get();
     36 }
     37 
     38 void CancelWait(WaitingCallback* waiting_callback) {
     39   if (!waiting_callback->wait_id())
     40     return;
     41   BindingsSupport::Get()->CancelWait(waiting_callback->wait_id());
     42   waiting_callback->set_wait_id(NULL);
     43 }
     44 
     45 gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin };
     46 
     47 }  // namespace
     48 
     49 const char Support::kModuleName[] = "mojo/apps/js/bindings/support";
     50 
     51 v8::Local<v8::ObjectTemplate> Support::GetTemplate(v8::Isolate* isolate) {
     52   gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
     53   v8::Local<v8::ObjectTemplate> templ = data->GetObjectTemplate(
     54       &g_wrapper_info);
     55 
     56   if (templ.IsEmpty()) {
     57     WaitingCallback::EnsureRegistered(isolate);
     58 
     59      templ = gin::ObjectTemplateBuilder(isolate)
     60         .SetMethod("asyncWait", AsyncWait)
     61         .SetMethod("cancelWait", CancelWait)
     62         .Build();
     63 
     64     data->SetObjectTemplate(&g_wrapper_info, templ);
     65   }
     66 
     67   return templ;
     68 }
     69 
     70 }  // namespace js
     71 }  // namespace mojo
     72