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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/edk/js/handle.h"
      6 
      7 #include "mojo/edk/js/handle_close_observer.h"
      8 
      9 namespace mojo {
     10 namespace edk {
     11 namespace js {
     12 
     13 gin::WrapperInfo HandleWrapper::kWrapperInfo = { gin::kEmbedderNativeGin };
     14 
     15 HandleWrapper::HandleWrapper(MojoHandle handle)
     16     : handle_(mojo::Handle(handle)) {
     17 }
     18 
     19 HandleWrapper::~HandleWrapper() {
     20   NotifyCloseObservers();
     21 }
     22 
     23 void HandleWrapper::Close() {
     24   NotifyCloseObservers();
     25   handle_.reset();
     26 }
     27 
     28 void HandleWrapper::AddCloseObserver(HandleCloseObserver* observer) {
     29   close_observers_.AddObserver(observer);
     30 }
     31 
     32 void HandleWrapper::RemoveCloseObserver(HandleCloseObserver* observer) {
     33   close_observers_.RemoveObserver(observer);
     34 }
     35 
     36 void HandleWrapper::NotifyCloseObservers() {
     37   if (!handle_.is_valid())
     38     return;
     39 
     40   FOR_EACH_OBSERVER(HandleCloseObserver, close_observers_, OnWillCloseHandle());
     41 }
     42 
     43 }  // namespace js
     44 }  // namespace edk
     45 }  // namespace mojo
     46 
     47 namespace gin {
     48 
     49 v8::Handle<v8::Value> Converter<mojo::Handle>::ToV8(v8::Isolate* isolate,
     50                                                     const mojo::Handle& val) {
     51   if (!val.is_valid())
     52     return v8::Null(isolate);
     53   return mojo::edk::js::HandleWrapper::Create(isolate, val.value()).ToV8();
     54 }
     55 
     56 bool Converter<mojo::Handle>::FromV8(v8::Isolate* isolate,
     57                                      v8::Handle<v8::Value> val,
     58                                      mojo::Handle* out) {
     59   if (val->IsNull()) {
     60     *out = mojo::Handle();
     61     return true;
     62   }
     63 
     64   gin::Handle<mojo::edk::js::HandleWrapper> handle;
     65   if (!Converter<gin::Handle<mojo::edk::js::HandleWrapper>>::FromV8(
     66           isolate, val, &handle))
     67     return false;
     68 
     69   *out = handle->get();
     70   return true;
     71 }
     72 
     73 v8::Handle<v8::Value> Converter<mojo::MessagePipeHandle>::ToV8(
     74     v8::Isolate* isolate, mojo::MessagePipeHandle val) {
     75   return Converter<mojo::Handle>::ToV8(isolate, val);
     76 }
     77 
     78 bool Converter<mojo::MessagePipeHandle>::FromV8(v8::Isolate* isolate,
     79                                                 v8::Handle<v8::Value> val,
     80                                                 mojo::MessagePipeHandle* out) {
     81   return Converter<mojo::Handle>::FromV8(isolate, val, out);
     82 }
     83 
     84 }  // namespace gin
     85