react-native/ReactCommon/fabric/uimanager/SchedulerEventDispatcher.h
Sebastian Markbage 5d9326be29 Remove instanceHandle, pass event target instead + add dispatchToEmptyTarget
Summary:
Removes the concept of instance handle. Instead we pass the event target
to createNode and don't pass it to subsequent clones.

The life time of the event target is managed by native (the event emitter).
It has to be released manually.

Reviewed By: shergin

Differential Revision: D8688330

fbshipit-source-id: e11b61f147ea9ca4dfb453fe07063ed06f24b7ac
2018-06-29 15:32:27 -07:00

52 lines
1.2 KiB
C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <fabric/core/EventDispatcher.h>
#include <fabric/core/EventPrimitives.h>
#include <fabric/uimanager/FabricUIManager.h>
#include <folly/dynamic.h>
namespace facebook {
namespace react {
class SchedulerEventDispatcher;
using SharedSchedulerEventDispatcher = std::shared_ptr<const SchedulerEventDispatcher>;
/*
* Concrete EventDispatcher.
*/
class SchedulerEventDispatcher final:
public EventDispatcher {
public:
void setUIManager(std::shared_ptr<const FabricUIManager> uiManager) const;
#pragma mark - EventDispatcher
void dispatchEvent(
const EventTarget &eventTarget,
const std::string &type,
const folly::dynamic &payload,
const EventPriority &priority
) const override;
void releaseEventTarget(const EventTarget &eventTarget) const override;
private:
// TODO: consider using std::weak_ptr<> instead for better memory management.
mutable std::shared_ptr<const FabricUIManager> uiManager_;
};
} // namespace react
} // namespace facebook