react-native/Libraries/SurfaceBackedComponent/RCTSurfaceBackedComponent.mm

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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTSurfaceBackedComponent.h"
#import <UIKit/UIKit.h>
#import <ComponentKit/CKComponentSubclass.h>
#import <ComponentKit/CKOverlayLayoutComponent.h>
#import <RCTSurfaceHostingComponent/RCTSurfaceHostingComponent.h>
#import <React/RCTSurface.h>
#import "RCTSurfaceBackedComponentState.h"
@implementation RCTSurfaceBackedComponent
+ (id)initialState
{
return [RCTSurfaceBackedComponentState new];
}
+ (instancetype)newWithBridge:(RCTBridge *)bridge
moduleName:(NSString *)moduleName
properties:(NSDictionary *)properties
options:(RCTSurfaceHostingComponentOptions)options
{
CKComponentScope scope(self, moduleName);
RCTSurfaceBackedComponentState *state = scope.state();
if (state.surface == nil || state.surface.bridge != bridge || ![state.surface.moduleName isEqualToString:moduleName]) {
RCTSurface *surface =
[[RCTSurface alloc] initWithBridge:bridge
moduleName:moduleName
initialProperties:properties];
state = [RCTSurfaceBackedComponentState newWithSurface:surface];
CKComponentScope::replaceState(scope, state);
}
else {
if (![state.surface.properties isEqualToDictionary:properties]) {
state.surface.properties = properties;
}
}
RCTSurfaceHostingComponent *surfaceHostingComponent =
[RCTSurfaceHostingComponent newWithSurface:state.surface
options:options];
CKComponent *component;
if (options.activityIndicatorComponentFactory == nil || RCTSurfaceStageIsRunning(state.surface.stage)) {
component = surfaceHostingComponent;
} else {
component = [CKOverlayLayoutComponent newWithComponent:surfaceHostingComponent
overlay:options.activityIndicatorComponentFactory()];
}
return [super newWithComponent:component];
}
@end