gin

content/renderer/pepper/v8object_var.cc

+// Copyright (c) 2011 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 "content/renderer/pepper/v8object_var.h"
+
+#include "base/logging.h"
+#include "content/public/renderer/pepper_plugin_instance.h"
+#include "content/renderer/pepper/host_globals.h"
+#include "ppapi/c/pp_var.h"
+
+namespace ppapi {
+
+// V8ObjectVar -----------------------------------------------------------------
+
+V8ObjectVar::V8ObjectVar(PP_Instance instance,
+                         v8::Handle<v8::Object> v8_object)
+    : instance_(instance) {
+  v8_object_.Reset(
+    content::PepperPluginInstance::Get(instance_)->GetIsolate(), v8_object);
+  content::HostGlobals::Get()->host_var_tracker()->AddV8ObjectVar(this);
+}
+
+V8ObjectVar::~V8ObjectVar() {
+  if (instance_)
+    content::HostGlobals::Get()->host_var_tracker()->RemoveV8ObjectVar(this);
+  v8_object_.Reset();
+}
+
+V8ObjectVar* V8ObjectVar::AsV8ObjectVar() {
+  return this;
+}
+
+PP_VarType V8ObjectVar::GetType() const {
+  return PP_VARTYPE_OBJECT;
+}
+
+v8::Local<v8::Object> V8ObjectVar::GetHandle() const {
+  content::PepperPluginInstance* instance =
+      content::PepperPluginInstance::Get(instance_);
+  if (instance)
+    return v8::Local<v8::Object>::New(instance->GetIsolate(), v8_object_);
+  return v8::Local<v8::Object>();
+}
+
+void V8ObjectVar::InstanceDeleted() {
+  // This is called by the HostVarTracker which will take care of removing us
+  // from its set.
+  DCHECK(instance_);
+  instance_ = 0;
+}
+
+// static
+scoped_refptr<V8ObjectVar> V8ObjectVar::FromPPVar(PP_Var var) {
+  if (var.type != PP_VARTYPE_OBJECT)
+    return scoped_refptr<V8ObjectVar>(NULL);
+  scoped_refptr<Var> var_object(
+      PpapiGlobals::Get()->GetVarTracker()->GetVar(var));
+  if (!var_object.get())
+    return scoped_refptr<V8ObjectVar>();
+  return scoped_refptr<V8ObjectVar>(var_object->AsV8ObjectVar());
+}
+
+}  // namespace ppapi