1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/apps/js/bindings/waiting_callback.h"
#include "gin/per_context_data.h"
namespace mojo {
namespace js {
namespace {
v8::Handle<v8::String> GetHiddenPropertyName(v8::Isolate* isolate) {
return gin::StringToSymbol(isolate, "::mojo::js::WaitingCallback");
}
} // namespace
gin::WrapperInfo WaitingCallback::kWrapperInfo = { gin::kEmbedderNativeGin };
WaitingCallback::WaitingCallback(v8::Isolate* isolate,
v8::Handle<v8::Function> callback)
: wait_id_() {
v8::Handle<v8::Context> context = isolate->GetCurrentContext();
runner_ = gin::PerContextData::From(context)->runner()->GetWeakPtr();
GetWrapper(isolate)->SetHiddenValue(GetHiddenPropertyName(isolate), callback);
}
WaitingCallback::~WaitingCallback() {
DCHECK(!wait_id_) << "Waiting callback was destroyed before being cancelled.";
}
gin::Handle<WaitingCallback> WaitingCallback::Create(
v8::Isolate* isolate, v8::Handle<v8::Function> callback) {
return gin::CreateHandle(isolate, new WaitingCallback(isolate, callback));
}
// static
void WaitingCallback::CallOnHandleReady(void* closure, MojoResult result) {
static_cast<WaitingCallback*>(closure)->OnHandleReady(result);
}
void WaitingCallback::OnHandleReady(MojoResult result) {
wait_id_ = 0;
if (!runner_)
return;
gin::Runner::Scope scope(runner_.get());
v8::Isolate* isolate = runner_->isolate();
v8::Handle<v8::Value> hidden_value =
GetWrapper(isolate)->GetHiddenValue(GetHiddenPropertyName(isolate));
v8::Handle<v8::Function> callback;
CHECK(gin::ConvertFromV8(isolate, hidden_value, &callback));
v8::Handle<v8::Value> args[] = { gin::ConvertToV8(isolate, result) };
runner_->Call(callback, runner_->global(), 1, args);
}
} // namespace js
} // namespace mojo
|
