react-native/React/Fabric/RCTScheduler.mm

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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "RCTScheduler.h"
#import <fabric/imagemanager/ImageManager.h>
#import <fabric/uimanager/ContextContainer.h>
#import <fabric/uimanager/Scheduler.h>
#import <fabric/uimanager/SchedulerDelegate.h>
#import <React/RCTImageLoader.h>
#import <React/RCTBridge+Private.h>
#import "MainRunLoopEventBeat.h"
#import "MessageQueueEventBeat.h"
#import "RCTConversions.h"
@interface RCTBridge ()
- (std::shared_ptr<facebook::react::MessageQueueThread>)jsMessageThread;
@end
using namespace facebook::react;
class SchedulerDelegateProxy: public SchedulerDelegate {
public:
SchedulerDelegateProxy(void *scheduler): scheduler_(scheduler) {}
void schedulerDidFinishTransaction(Tag rootTag, const ShadowViewMutationList &mutations) override {
RCTScheduler *scheduler = (__bridge RCTScheduler *)scheduler_;
[scheduler.delegate schedulerDidFinishTransaction:mutations rootTag:rootTag];
}
void schedulerDidRequestPreliminaryViewAllocation(ComponentName componentName) override {
RCTScheduler *scheduler = (__bridge RCTScheduler *)scheduler_;
[scheduler.delegate schedulerDidRequestPreliminaryViewAllocationWithComponentName:RCTNSStringFromString(componentName, NSASCIIStringEncoding)];
}
private:
void *scheduler_;
};
@implementation RCTScheduler {
std::shared_ptr<Scheduler> _scheduler;
std::shared_ptr<SchedulerDelegateProxy> _delegateProxy;
}
- (instancetype)init
{
if (self = [super init]) {
_delegateProxy = std::make_shared<SchedulerDelegateProxy>((__bridge void *)self);
RCTBridge *bridge = [RCTBridge currentBridge];
SharedContextContainer contextContainer = std::make_shared<ContextContainer>();
EventBeatFactory synchronousBeatFactory = [bridge]() {
return std::make_unique<MainRunLoopEventBeat>(bridge.jsMessageThread);
};
EventBeatFactory asynchronousBeatFactory = [bridge]() {
return std::make_unique<MessageQueueEventBeat>(bridge.jsMessageThread);
};
contextContainer->registerInstance<EventBeatFactory>(synchronousBeatFactory, "synchronous");
contextContainer->registerInstance<EventBeatFactory>(asynchronousBeatFactory, "asynchronous");
void *imageLoader = (__bridge void *)[[RCTBridge currentBridge] imageLoader];
contextContainer->registerInstance(std::make_shared<ImageManager>(imageLoader));
_scheduler = std::make_shared<Scheduler>(contextContainer);
_scheduler->setDelegate(_delegateProxy.get());
}
return self;
}
- (void)dealloc
{
_scheduler->setDelegate(nullptr);
}
- (void)registerRootTag:(ReactTag)tag
{
_scheduler->registerRootTag(tag);
}
- (void)unregisterRootTag:(ReactTag)tag
{
_scheduler->unregisterRootTag(tag);
}
- (CGSize)measureWithLayoutConstraints:(LayoutConstraints)layoutConstraints
layoutContext:(LayoutContext)layoutContext
rootTag:(ReactTag)rootTag
{
return RCTCGSizeFromSize(_scheduler->measure(rootTag, layoutConstraints, layoutContext));
}
- (void)constraintLayoutWithLayoutConstraints:(LayoutConstraints)layoutConstraints
layoutContext:(LayoutContext)layoutContext
rootTag:(ReactTag)rootTag
{
_scheduler->constraintLayout(rootTag, layoutConstraints, layoutContext);
}
@end
@implementation RCTScheduler (Deprecated)
- (std::shared_ptr<FabricUIManager>)uiManager_DO_NOT_USE
{
return _scheduler->getUIManager_DO_NOT_USE();
}
@end