mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
deda35134a
Summary: Changelog: [internal] EventQueue is used as a virtual class, this diff makes it one. Reviewed By: JoshuaGross, shergin Differential Revision: D25826983 fbshipit-source-id: 60e6937514cd3b837b0ca9f61bfaa081823ffc61
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "BatchedEventQueue.h"
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namespace facebook {
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namespace react {
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BatchedEventQueue::BatchedEventQueue(
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EventPipe eventPipe,
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StatePipe statePipe,
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std::unique_ptr<EventBeat> eventBeat)
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: EventQueue(eventPipe, statePipe, std::move(eventBeat)) {}
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void BatchedEventQueue::onEnqueue() const {
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eventBeat_->request();
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}
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void BatchedEventQueue::enqueueUniqueEvent(RawEvent const &rawEvent) const {
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{
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std::lock_guard<std::mutex> lock(queueMutex_);
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auto repeatedEvent = eventQueue_.rend();
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for (auto it = eventQueue_.rbegin(); it != eventQueue_.rend(); ++it) {
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if (it->type == rawEvent.type &&
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it->eventTarget == rawEvent.eventTarget) {
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repeatedEvent = it;
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break;
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} else if (it->eventTarget == rawEvent.eventTarget) {
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// It is necessary to maintain order of different event types
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// for the same target. If the same target has event types A1, B1
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// in the event queue and event A2 occurs. A1 has to stay in the
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// queue.
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break;
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}
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}
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if (repeatedEvent == eventQueue_.rend()) {
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eventQueue_.push_back(rawEvent);
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} else {
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*repeatedEvent = std::move(rawEvent);
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}
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}
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onEnqueue();
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}
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} // namespace react
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} // namespace facebook
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