react-native/React/Base/RCTConvert.h

230 lines
7.6 KiB
Objective-C

/**
* 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 <QuartzCore/QuartzCore.h>
#import <UIKit/UIKit.h>
#import "Layout.h"
#import "RCTAnimationType.h"
#import "RCTTextDecorationLineType.h"
#import "RCTDefines.h"
#import "RCTLog.h"
#import "RCTPointerEvents.h"
/**
* This class provides a collection of conversion functions for mapping
* JSON objects to native types and classes. These are useful when writing
* custom RCTViewManager setter methods.
*/
@interface RCTConvert : NSObject
+ (id)id:(id)json;
+ (BOOL)BOOL:(id)json;
+ (double)double:(id)json;
+ (float)float:(id)json;
+ (int)int:(id)json;
+ (int64_t)int64_t:(id)json;
+ (uint64_t)uint64_t:(id)json;
+ (NSInteger)NSInteger:(id)json;
+ (NSUInteger)NSUInteger:(id)json;
+ (NSArray *)NSArray:(id)json;
+ (NSDictionary *)NSDictionary:(id)json;
+ (NSString *)NSString:(id)json;
+ (NSNumber *)NSNumber:(id)json;
+ (NSSet *)NSSet:(id)json;
+ (NSData *)NSData:(id)json;
+ (NSIndexSet *)NSIndexSet:(id)json;
+ (NSURL *)NSURL:(id)json;
+ (NSURLRequest *)NSURLRequest:(id)json;
typedef NSURL RCTFileURL;
+ (RCTFileURL *)RCTFileURL:(id)json;
+ (NSDate *)NSDate:(id)json;
+ (NSTimeZone *)NSTimeZone:(id)json;
+ (NSTimeInterval)NSTimeInterval:(id)json;
+ (NSLineBreakMode)NSLineBreakMode:(id)json;
+ (NSTextAlignment)NSTextAlignment:(id)json;
+ (NSUnderlineStyle)NSUnderlineStyle:(id)json;
+ (NSWritingDirection)NSWritingDirection:(id)json;
+ (UITextAutocapitalizationType)UITextAutocapitalizationType:(id)json;
+ (UITextFieldViewMode)UITextFieldViewMode:(id)json;
+ (UIKeyboardType)UIKeyboardType:(id)json;
+ (UIReturnKeyType)UIReturnKeyType:(id)json;
+ (UIViewContentMode)UIViewContentMode:(id)json;
+ (UIBarStyle)UIBarStyle:(id)json;
+ (CGFloat)CGFloat:(id)json;
+ (CGPoint)CGPoint:(id)json;
+ (CGSize)CGSize:(id)json;
+ (CGRect)CGRect:(id)json;
+ (UIEdgeInsets)UIEdgeInsets:(id)json;
+ (CGLineCap)CGLineCap:(id)json;
+ (CGLineJoin)CGLineJoin:(id)json;
+ (CATransform3D)CATransform3D:(id)json;
+ (CGAffineTransform)CGAffineTransform:(id)json;
+ (UIColor *)UIColor:(id)json;
+ (CGColorRef)CGColor:(id)json CF_RETURNS_NOT_RETAINED;
+ (UIImage *)UIImage:(id)json;
+ (CGImageRef)CGImage:(id)json CF_RETURNS_NOT_RETAINED;
+ (UIFont *)UIFont:(id)json;
+ (UIFont *)UIFont:(UIFont *)font withSize:(id)json;
+ (UIFont *)UIFont:(UIFont *)font withWeight:(id)json;
+ (UIFont *)UIFont:(UIFont *)font withStyle:(id)json;
+ (UIFont *)UIFont:(UIFont *)font withFamily:(id)json;
+ (UIFont *)UIFont:(UIFont *)font withFamily:(id)family
size:(id)size weight:(id)weight style:(id)style
scaleMultiplier:(CGFloat)scaleMultiplier;
typedef NSArray NSArrayArray;
+ (NSArrayArray *)NSArrayArray:(id)json;
typedef NSArray NSStringArray;
+ (NSStringArray *)NSStringArray:(id)json;
typedef NSArray NSDictionaryArray;
+ (NSDictionaryArray *)NSDictionaryArray:(id)json;
typedef NSArray NSURLArray;
+ (NSURLArray *)NSURLArray:(id)json;
typedef NSArray RCTFileURLArray;
+ (RCTFileURLArray *)RCTFileURLArray:(id)json;
typedef NSArray NSNumberArray;
+ (NSNumberArray *)NSNumberArray:(id)json;
typedef NSArray UIColorArray;
+ (UIColorArray *)UIColorArray:(id)json;
typedef NSArray CGColorArray;
+ (CGColorArray *)CGColorArray:(id)json;
/**
* Convert a JSON object to a Plist-safe equivalent by stripping null values.
*/
typedef id NSPropertyList;
+ (NSPropertyList)NSPropertyList:(id)json;
typedef BOOL css_clip_t, css_backface_visibility_t;
+ (css_clip_t)css_clip_t:(id)json;
+ (css_backface_visibility_t)css_backface_visibility_t:(id)json;
+ (css_flex_direction_t)css_flex_direction_t:(id)json;
+ (css_justify_t)css_justify_t:(id)json;
+ (css_align_t)css_align_t:(id)json;
+ (css_position_type_t)css_position_type_t:(id)json;
+ (css_wrap_type_t)css_wrap_type_t:(id)json;
+ (RCTPointerEvents)RCTPointerEvents:(id)json;
+ (RCTAnimationType)RCTAnimationType:(id)json;
+ (RCTTextDecorationLineType)RCTTextDecorationLineType:(id)json;
@end
/**
* Underlying implementations of RCT_XXX_CONVERTER macros. Ignore these.
*/
RCT_EXTERN NSNumber *RCTConvertEnumValue(const char *, NSDictionary *, NSNumber *, id);
RCT_EXTERN NSNumber *RCTConvertMultiEnumValue(const char *, NSDictionary *, NSNumber *, id);
RCT_EXTERN NSArray *RCTConvertArrayValue(SEL, id);
/**
* This macro is used for logging conversion errors. This is just used to
* avoid repeating the same boilerplate for every error message.
*/
#define RCTLogConvertError(json, typeName) \
RCTLogError(@"JSON value '%@' of type %@ cannot be converted to %@", \
json, [json classForCoder], typeName)
/**
* This macro is used for creating simple converter functions that just call
* the specified getter method on the json value.
*/
#define RCT_CONVERTER(type, name, getter) \
RCT_CUSTOM_CONVERTER(type, name, [json getter])
/**
* This macro is used for creating converter functions with arbitrary logic.
*/
#define RCT_CUSTOM_CONVERTER(type, name, code) \
+ (type)name:(id)json \
{ \
if (!RCT_DEBUG) { \
return code; \
} else { \
@try { \
return code; \
} \
@catch (__unused NSException *e) { \
RCTLogConvertError(json, @#type); \
json = nil; \
return code; \
} \
} \
}
/**
* This macro is similar to RCT_CONVERTER, but specifically geared towards
* numeric types. It will handle string input correctly, and provides more
* detailed error reporting if an invalid value is passed in.
*/
#define RCT_NUMBER_CONVERTER(type, getter) \
RCT_CUSTOM_CONVERTER(type, type, [RCT_DEBUG ? [self NSNumber:json] : json getter])
/**
* This macro is used for creating converters for enum types.
*/
#define RCT_ENUM_CONVERTER(type, values, default, getter) \
+ (type)type:(id)json \
{ \
static NSDictionary *mapping; \
static dispatch_once_t onceToken; \
dispatch_once(&onceToken, ^{ \
mapping = values; \
}); \
return [RCTConvertEnumValue(#type, mapping, @(default), json) getter]; \
}
/**
* This macro is used for creating converters for enum types for
* multiple enum values combined with | operator
*/
#define RCT_MULTI_ENUM_CONVERTER(type, values, default, getter) \
+ (type)type:(id)json \
{ \
static NSDictionary *mapping; \
static dispatch_once_t onceToken; \
dispatch_once(&onceToken, ^{ \
mapping = values; \
}); \
return [RCTConvertMultiEnumValue(#type, mapping, @(default), json) getter]; \
}
/**
* This macro is used for creating converter functions for typed arrays.
*/
#define RCT_ARRAY_CONVERTER(type) \
+ (NSArray *)type##Array:(id)json \
{ \
return RCTConvertArrayValue(@selector(type:), json); \
}