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95 lines
2.9 KiB
95 lines
2.9 KiB
// Copyright 2015-present 650 Industries. All rights reserved.
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#import <EXFont/EXFontLoader.h>
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#import <EXFont/EXFontLoaderProcessor.h>
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#import <ExpoModulesCore/EXFontManagerInterface.h>
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#import <ExpoModulesCore/EXFontScalersManagerInterface.h>
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#import <EXFont/EXFontScaler.h>
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#import <EXFont/EXFont.h>
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#import <objc/runtime.h>
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#import <EXFont/EXFontManager.h>
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#import <EXFont/EXFontScalersManager.h>
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@interface EXFontLoader ()
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@property (nonatomic, strong) EXFontScaler *scaler;
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@property (nonatomic, strong) EXFontLoaderProcessor *processor;
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@property (nonatomic, strong) EXFontManager *manager;
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@end
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@implementation EXFontLoader
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EX_EXPORT_MODULE(ExpoFontLoader);
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- (instancetype)init
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{
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if (self = [super init]) {
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_scaler = [[EXFontScaler alloc] init];
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_manager = [[EXFontManager alloc] init];
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_processor = [[EXFontLoaderProcessor alloc] initWithManager:_manager];
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}
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return self;
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}
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- (instancetype)initWithFontFamilyPrefix:(NSString *)prefix
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{
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if (self = [super init]) {
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_scaler = [[EXFontScaler alloc] init];
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_manager = [[EXFontManager alloc] init];
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_processor = [[EXFontLoaderProcessor alloc] initWithFontFamilyPrefix:prefix manager:_manager];
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}
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return self;
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}
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- (void)setModuleRegistry:(EXModuleRegistry *)moduleRegistry
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{
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if (moduleRegistry) {
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id<EXFontManagerInterface> manager = [moduleRegistry getModuleImplementingProtocol:@protocol(EXFontManagerInterface)];
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[manager addFontProcessor:_processor];
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id<EXFontScalersManagerInterface> scalersManager = [moduleRegistry getSingletonModuleForName:@"FontScalersManager"];
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[scalersManager registerFontScaler:_scaler];
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}
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}
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EX_EXPORT_METHOD_AS(loadAsync,
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loadAsyncWithFontFamilyName:(NSString *)fontFamilyName
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withLocalUri:(NSString *)path
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resolver:(EXPromiseResolveBlock)resolve
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rejecter:(EXPromiseRejectBlock)reject)
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{
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if ([_manager fontForName:fontFamilyName]) {
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reject(@"E_FONT_ALREADY_EXISTS",
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[NSString stringWithFormat:@"Font with family name '%@' already loaded", fontFamilyName],
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nil);
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return;
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}
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// TODO(nikki): make sure path is in experience's scope
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NSURL *uriString = [[NSURL alloc] initWithString:path];
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NSData *data = [[NSFileManager defaultManager] contentsAtPath:[uriString path]];
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if (!data) {
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reject(@"E_FONT_FILE_NOT_FOUND",
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[NSString stringWithFormat:@"File '%@' for font '%@' doesn't exist", path, fontFamilyName],
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nil);
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return;
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}
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CGDataProviderRef provider = CGDataProviderCreateWithCFData((__bridge CFDataRef)data);
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CGFontRef font = CGFontCreateWithDataProvider(provider);
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CGDataProviderRelease(provider);
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if (!font) {
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reject(@"E_FONT_CREATION_FAILED",
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[NSString stringWithFormat:@"Could not create font from loaded data for '%@'", fontFamilyName],
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nil);
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return;
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}
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[_manager setFont:[[EXFont alloc] initWithCGFont:font] forName:fontFamilyName];
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resolve(nil);
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}
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@end
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