58 lines
2.0 KiB
Mathematica
58 lines
2.0 KiB
Mathematica
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// Copyright 2018-present 650 Industries. All rights reserved.
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#import <UMReactNativeAdapter/UMViewManagerAdapterClassesRegistry.h>
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#import <UMReactNativeAdapter/UMViewManagerAdapter.h>
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#import <objc/runtime.h>
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static const NSString *viewManagerAdapterModuleNamePrefix = @"ViewManagerAdapter_";
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static IMP directEventBlockImplementation = nil;
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static dispatch_once_t directEventBlockImplementationOnceToken;
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@interface UMViewManagerAdapterClassesRegistry ()
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@property (nonatomic, strong) NSMutableDictionary<Class, Class> *viewManagerAdaptersClasses;
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@end
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@implementation UMViewManagerAdapterClassesRegistry
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- (instancetype)init
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{
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if (self = [super init]) {
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_viewManagerAdaptersClasses = [NSMutableDictionary dictionary];
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}
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return self;
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}
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- (Class)viewManagerAdapterClassForViewManager:(UMViewManager *)viewManager
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{
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Class viewManagerClass = [viewManager class];
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if (_viewManagerAdaptersClasses[viewManagerClass] == nil) {
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_viewManagerAdaptersClasses[(id <NSCopying>)viewManagerClass] = [self _createViewManagerAdapterClassForViewManager:viewManager];
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}
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return _viewManagerAdaptersClasses[viewManagerClass];
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}
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- (Class)_createViewManagerAdapterClassForViewManager:(UMViewManager *)viewManager
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{
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const char *viewManagerClassName = [[viewManagerAdapterModuleNamePrefix stringByAppendingString:[viewManager viewName]] UTF8String];
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Class viewManagerAdapterClass = objc_allocateClassPair([UMViewManagerAdapter class], viewManagerClassName, 0);
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[self _ensureDirectEventBlockImplementationIsPresent];
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for (NSString *eventName in [viewManager supportedEvents]) {
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class_addMethod(object_getClass(viewManagerAdapterClass), NSSelectorFromString([@"propConfig_" stringByAppendingString:eventName]), directEventBlockImplementation, "@@:");
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}
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return viewManagerAdapterClass;
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}
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- (void)_ensureDirectEventBlockImplementationIsPresent
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{
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dispatch_once(&directEventBlockImplementationOnceToken, ^{
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directEventBlockImplementation = imp_implementationWithBlock(^{
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return @[@"RCTDirectEventBlock"];
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});
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});
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}
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@end
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