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Side by Side Diff: mojo/public/bindings/js/waiting_callback.cc

Issue 100573003: [Mojo] Move JS bindings out of public (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix header guards Created 7 years ago
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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/public/bindings/js/waiting_callback.h"
6
7 #include "gin/per_context_data.h"
8 #include "gin/per_isolate_data.h"
9
10 namespace mojo {
11 namespace js {
12
13 namespace {
14
15 v8::Handle<v8::String> GetHiddenPropertyName(v8::Isolate* isolate) {
16 return gin::StringToSymbol(isolate, "::mojo::js::WaitingCallback");
17 }
18
19 } // namespace
20
21 WaitingCallback::WaitingCallback(v8::Isolate* isolate,
22 v8::Handle<v8::Function> callback)
23 : wait_id_() {
24 v8::Handle<v8::Context> context = isolate->GetCurrentContext();
25 runner_ = gin::PerContextData::From(context)->runner()->GetWeakPtr();
26 GetWrapper(isolate)->SetHiddenValue(GetHiddenPropertyName(isolate), callback);
27 }
28
29 WaitingCallback::~WaitingCallback() {
30 DCHECK(!wait_id_) << "Waiting callback was destroyed before being cancelled.";
31 }
32
33 scoped_refptr<WaitingCallback> WaitingCallback::Create(
34 v8::Isolate* isolate, v8::Handle<v8::Function> callback) {
35 return make_scoped_refptr(new WaitingCallback(isolate, callback));
36 }
37
38 gin::WrapperInfo WaitingCallback::kWrapperInfo = { gin::kEmbedderNativeGin };
39
40 gin::WrapperInfo* WaitingCallback::GetWrapperInfo() {
41 return &kWrapperInfo;
42 }
43
44 void WaitingCallback::EnsureRegistered(v8::Isolate* isolate) {
45 gin::PerIsolateData* data = gin::PerIsolateData::From(isolate);
46 if (!data->GetObjectTemplate(&kWrapperInfo).IsEmpty())
47 return;
48 v8::Handle<v8::ObjectTemplate> templ = v8::ObjectTemplate::New(isolate);
49 templ->SetInternalFieldCount(gin::kNumberOfInternalFields);
50 data->SetObjectTemplate(&kWrapperInfo, templ);
51 }
52
53 void WaitingCallback::OnHandleReady(MojoResult result) {
54 wait_id_ = NULL;
55
56 if (!runner_)
57 return;
58
59 gin::Runner::Scope scope(runner_.get());
60 v8::Isolate* isolate = runner_->isolate();
61
62 v8::Handle<v8::Value> hidden_value =
63 GetWrapper(isolate)->GetHiddenValue(GetHiddenPropertyName(isolate));
64 v8::Handle<v8::Function> callback;
65 CHECK(gin::ConvertFromV8(isolate, hidden_value, &callback));
66
67 v8::Handle<v8::Value> args[] = { gin::ConvertToV8(isolate, result) };
68 runner_->Call(callback, runner_->global(), 1, args);
69 }
70
71 } // namespace js
72 } // namespace mojo
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