Add mate::TrackableObject

atom/browser/api/trackable_object.cc

@@ -0,0 +1,39 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/api/trackable_object.h"
+
+namespace mate {
+
+atom::IDWeakMap TrackableObject::weak_map_;
+
+// static
+TrackableObject* TrackableObject::FromWeakMapID(v8::Isolate* isolate,
+                                                int32_t id) {
+  v8::MaybeLocal<v8::Object> object = weak_map_.Get(isolate, id);
+  if (object.IsEmpty())
+    return nullptr;
+
+  TrackableObject* self = nullptr;
+  mate::ConvertFromV8(isolate, object.ToLocalChecked(), &self);
+  return self;
+}
+
+// static
+void TrackableObject::ReleaseAllWeakReferences() {
+  weak_map_.Clear();
+}
+
+TrackableObject::TrackableObject() : weak_map_id_(0) {
+}
+
+TrackableObject::~TrackableObject() {
+  weak_map_.Remove(weak_map_id_);
+}
+
+void TrackableObject::AfterInit(v8::Isolate* isolate) {
+  weak_map_id_ = weak_map_.Add(isolate, GetWrapper(isolate));
+}
+
+}  // namespace mate