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 "content/renderer/pepper/v8object_var.h"
6
7#include "base/logging.h"
8#include "content/public/renderer/pepper_plugin_instance.h"
9#include "content/renderer/pepper/host_globals.h"
10#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
11#include "ppapi/c/pp_var.h"
12
13namespace ppapi {
14
15// V8ObjectVar -----------------------------------------------------------------
16
17V8ObjectVar::V8ObjectVar(PP_Instance instance,
18                         v8::Handle<v8::Object> v8_object)
19    : instance_(content::HostGlobals::Get()->GetInstance(instance)) {
20  v8_object_.Reset(instance_->GetIsolate(), v8_object);
21  content::HostGlobals::Get()->host_var_tracker()->AddV8ObjectVar(this);
22}
23
24V8ObjectVar::~V8ObjectVar() {
25  if (instance_)
26    content::HostGlobals::Get()->host_var_tracker()->RemoveV8ObjectVar(this);
27  v8_object_.Reset();
28}
29
30V8ObjectVar* V8ObjectVar::AsV8ObjectVar() {
31  return this;
32}
33
34PP_VarType V8ObjectVar::GetType() const {
35  return PP_VARTYPE_OBJECT;
36}
37
38v8::Local<v8::Object> V8ObjectVar::GetHandle() const {
39  if (instance_)
40    return v8::Local<v8::Object>::New(instance_->GetIsolate(), v8_object_);
41  return v8::Local<v8::Object>();
42}
43
44void V8ObjectVar::InstanceDeleted() {
45  // This is called by the HostVarTracker which will take care of removing us
46  // from its set.
47  DCHECK(instance_);
48  instance_ = NULL;
49}
50
51// static
52scoped_refptr<V8ObjectVar> V8ObjectVar::FromPPVar(PP_Var var) {
53  if (var.type != PP_VARTYPE_OBJECT)
54    return scoped_refptr<V8ObjectVar>(NULL);
55  scoped_refptr<Var> var_object(
56      PpapiGlobals::Get()->GetVarTracker()->GetVar(var));
57  if (!var_object.get())
58    return scoped_refptr<V8ObjectVar>();
59  return scoped_refptr<V8ObjectVar>(var_object->AsV8ObjectVar());
60}
61
62}  // namespace ppapi
63