electron/atom/browser/api/trackable_object.h

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2015-06-24 06:36:05 +00:00
// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ATOM_BROWSER_API_TRACKABLE_OBJECT_H_
#define ATOM_BROWSER_API_TRACKABLE_OBJECT_H_
#include "atom/browser/api/event_emitter.h"
#include "atom/common/id_weak_map.h"
namespace mate {
// All instances of TrackableObject will be kept in a weak map and can be got
// from its ID.
class TrackableObject : public mate::EventEmitter {
public:
// Find out the TrackableObject from its ID in weak map:
static TrackableObject* FromWeakMapID(v8::Isolate* isolate, int32_t id);
// Releases all weak references in weak map, called when app is terminating.
static void ReleaseAllWeakReferences();
// mate::Wrappable:
void AfterInit(v8::Isolate* isolate) override;
// The ID in weak map.
int32_t weak_map_id() const { return weak_map_id_; }
protected:
TrackableObject();
~TrackableObject() override;
private:
static atom::IDWeakMap weak_map_;
int32_t weak_map_id_;
DISALLOW_COPY_AND_ASSIGN(TrackableObject);
};
} // namespace mate
#endif // ATOM_BROWSER_API_TRACKABLE_OBJECT_H_