mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Eli White
91681016e8
Summary:
These helper functions will be used by the ObjC generated code for support on commands.
This is an example of what that code might look like and how these functions will be used.
```
- (void)handleCommand:(NSString const *)commandName args:(NSArray const *)args
{
if ([commandName isEqualToString:@"scrollTo"]) {
if ([args count] != 2) {
RCTLogError(
@"%@ command %@ received %d arguments, expected %d.", @"ScrollView", @"scrollTo", (int)[args count], 2);
return;
}
NSObject *arg0 = args[0];
if (!RCTValidateTypeOfViewCommandArgument(arg0, [NSNumber class], @"number", @"ScrollView", @"scrollTo", @"1st")) {
return;
}
int x = [(NSNumber *)arg0 intValue];
NSObject *arg1 = args[1];
if (!RCTValidateTypeOfViewCommandArgument(arg1, [NSNumber class], @"number", @"ScrollView", @"scrollTo", @"2nd")) {
return;
}
int y = [(NSNumber *)arg1 intValue];
[self scrollTo:x y:y];
} else if ([commandName isEqualToString:@"scrollToEnd"]) {
if ([args count] != 0) {
RCTLogError(
@"%@ command %@ received %d arguments, expected %d.", @"ScrollView", @"scrollToEnd", (int)[args count], 0);
return;
}
[self scrollToEnd];
}
}
```
Reviewed By: JoshuaGross
Differential Revision: D16474117
fbshipit-source-id: 2bb9f01d7c97cc59e9373b7759021c65980fcc0e
1002 lines
31 KiB
Objective-C
1002 lines
31 KiB
Objective-C
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "RCTUtils.h"
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#import <dlfcn.h>
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#import <mach/mach_time.h>
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#import <objc/message.h>
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#import <objc/runtime.h>
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#import <zlib.h>
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#import <UIKit/UIKit.h>
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#import <CommonCrypto/CommonCrypto.h>
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#import "RCTAssert.h"
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#import "RCTLog.h"
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NSString *const RCTErrorUnspecified = @"EUNSPECIFIED";
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// Returns the Path of Home directory
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NSString *__nullable RCTHomePath(void);
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// Returns the relative path within the Home for an absolute URL
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// (or nil, if the URL does not specify a path within the Home directory)
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NSString *__nullable RCTHomePathForURL(NSURL *__nullable URL);
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// Determines if a given image URL refers to a image in Home directory (~)
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BOOL RCTIsHomeAssetURL(NSURL *__nullable imageURL);
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static NSString *__nullable _RCTJSONStringifyNoRetry(id __nullable jsonObject, NSError **error)
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{
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if (!jsonObject) {
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return nil;
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}
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static SEL JSONKitSelector = NULL;
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static NSSet<Class> *collectionTypes;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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SEL selector = NSSelectorFromString(@"JSONStringWithOptions:error:");
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if ([NSDictionary instancesRespondToSelector:selector]) {
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JSONKitSelector = selector;
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collectionTypes = [NSSet setWithObjects:
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[NSArray class], [NSMutableArray class],
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[NSDictionary class], [NSMutableDictionary class], nil];
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}
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});
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@try {
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// Use JSONKit if available and object is not a fragment
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if (JSONKitSelector && [collectionTypes containsObject:[jsonObject classForCoder]]) {
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return ((NSString *(*)(id, SEL, int, NSError **))objc_msgSend)(jsonObject, JSONKitSelector, 0, error);
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}
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// Use Foundation JSON method
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NSData *jsonData = [NSJSONSerialization
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dataWithJSONObject:jsonObject options:(NSJSONWritingOptions)NSJSONReadingAllowFragments
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error:error];
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return jsonData ? [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding] : nil;
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}
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@catch (NSException *exception) {
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// Convert exception to error
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if (error) {
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*error = [NSError errorWithDomain:RCTErrorDomain code:0 userInfo:@{
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NSLocalizedDescriptionKey: exception.description ?: @""
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}];
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}
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return nil;
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}
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}
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NSString *__nullable RCTJSONStringify(id __nullable jsonObject, NSError **error)
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{
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if (error) {
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return _RCTJSONStringifyNoRetry(jsonObject, error);
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} else {
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NSError *localError;
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NSString *json = _RCTJSONStringifyNoRetry(jsonObject, &localError);
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if (localError) {
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RCTLogError(@"RCTJSONStringify() encountered the following error: %@",
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localError.localizedDescription);
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// Sanitize the data, then retry. This is slow, but it prevents uncaught
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// data issues from crashing in production
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return _RCTJSONStringifyNoRetry(RCTJSONClean(jsonObject), NULL);
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}
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return json;
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}
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}
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static id __nullable _RCTJSONParse(NSString *__nullable jsonString, BOOL mutable, NSError **error)
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{
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static SEL JSONKitSelector = NULL;
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static SEL JSONKitMutableSelector = NULL;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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SEL selector = NSSelectorFromString(@"objectFromJSONStringWithParseOptions:error:");
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if ([NSString instancesRespondToSelector:selector]) {
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JSONKitSelector = selector;
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JSONKitMutableSelector = NSSelectorFromString(@"mutableObjectFromJSONStringWithParseOptions:error:");
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}
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});
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if (jsonString) {
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// Use JSONKit if available and string is not a fragment
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if (JSONKitSelector) {
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NSInteger length = jsonString.length;
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for (NSInteger i = 0; i < length; i++) {
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unichar c = [jsonString characterAtIndex:i];
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if (strchr("{[", c)) {
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static const int options = (1 << 2); // loose unicode
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SEL selector = mutable ? JSONKitMutableSelector : JSONKitSelector;
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return ((id (*)(id, SEL, int, NSError **))objc_msgSend)(jsonString, selector, options, error);
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}
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if (!strchr(" \r\n\t", c)) {
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break;
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}
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}
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}
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// Use Foundation JSON method
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NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
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if (!jsonData) {
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jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
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if (jsonData) {
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RCTLogWarn(@"RCTJSONParse received the following string, which could "
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"not be losslessly converted to UTF8 data: '%@'", jsonString);
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} else {
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NSString *errorMessage = @"RCTJSONParse received invalid UTF8 data";
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if (error) {
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*error = RCTErrorWithMessage(errorMessage);
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} else {
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RCTLogError(@"%@", errorMessage);
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}
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return nil;
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}
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}
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NSJSONReadingOptions options = NSJSONReadingAllowFragments;
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if (mutable) {
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options |= NSJSONReadingMutableContainers;
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}
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return [NSJSONSerialization JSONObjectWithData:jsonData
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options:options
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error:error];
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}
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return nil;
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}
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id __nullable RCTJSONParse(NSString *__nullable jsonString, NSError **error)
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{
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return _RCTJSONParse(jsonString, NO, error);
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}
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id __nullable RCTJSONParseMutable(NSString *__nullable jsonString, NSError **error)
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{
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return _RCTJSONParse(jsonString, YES, error);
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}
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id RCTJSONClean(id object)
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{
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static dispatch_once_t onceToken;
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static NSSet<Class> *validLeafTypes;
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dispatch_once(&onceToken, ^{
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validLeafTypes = [[NSSet alloc] initWithArray:@[
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[NSString class],
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[NSMutableString class],
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[NSNumber class],
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[NSNull class],
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]];
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});
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if ([validLeafTypes containsObject:[object classForCoder]]) {
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if ([object isKindOfClass:[NSNumber class]]) {
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return @(RCTZeroIfNaN([object doubleValue]));
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}
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if ([object isKindOfClass:[NSString class]]) {
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if ([object UTF8String] == NULL) {
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return (id)kCFNull;
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}
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}
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return object;
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}
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if ([object isKindOfClass:[NSDictionary class]]) {
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__block BOOL copy = NO;
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NSMutableDictionary<NSString *, id> *values = [[NSMutableDictionary alloc] initWithCapacity:[object count]];
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[object enumerateKeysAndObjectsUsingBlock:^(NSString *key, id item, __unused BOOL *stop) {
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id value = RCTJSONClean(item);
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values[key] = value;
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copy |= value != item;
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}];
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return copy ? values : object;
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}
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if ([object isKindOfClass:[NSArray class]]) {
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__block BOOL copy = NO;
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__block NSArray *values = object;
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[object enumerateObjectsUsingBlock:^(id item, NSUInteger idx, __unused BOOL *stop) {
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id value = RCTJSONClean(item);
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if (copy) {
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[(NSMutableArray *)values addObject:value];
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} else if (value != item) {
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// Converted value is different, so we'll need to copy the array
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values = [[NSMutableArray alloc] initWithCapacity:values.count];
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for (NSUInteger i = 0; i < idx; i++) {
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[(NSMutableArray *)values addObject:object[i]];
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}
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[(NSMutableArray *)values addObject:value];
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copy = YES;
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}
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}];
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return values;
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}
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return (id)kCFNull;
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}
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NSString *RCTMD5Hash(NSString *string)
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{
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const char *str = string.UTF8String;
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unsigned char result[CC_MD5_DIGEST_LENGTH];
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CC_MD5(str, (CC_LONG)strlen(str), result);
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return [NSString stringWithFormat:@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
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result[0], result[1], result[2], result[3],
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result[4], result[5], result[6], result[7],
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result[8], result[9], result[10], result[11],
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result[12], result[13], result[14], result[15]
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];
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}
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BOOL RCTIsMainQueue()
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{
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static void *mainQueueKey = &mainQueueKey;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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dispatch_queue_set_specific(dispatch_get_main_queue(),
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mainQueueKey, mainQueueKey, NULL);
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});
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return dispatch_get_specific(mainQueueKey) == mainQueueKey;
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}
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void RCTExecuteOnMainQueue(dispatch_block_t block)
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{
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if (RCTIsMainQueue()) {
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block();
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} else {
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dispatch_async(dispatch_get_main_queue(), ^{
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block();
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});
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}
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}
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// Please do not use this method
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// unless you know what you are doing.
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void RCTUnsafeExecuteOnMainQueueSync(dispatch_block_t block)
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{
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if (RCTIsMainQueue()) {
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block();
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} else {
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dispatch_sync(dispatch_get_main_queue(), ^{
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block();
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});
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}
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}
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static void RCTUnsafeExecuteOnMainQueueOnceSync(dispatch_once_t *onceToken, dispatch_block_t block)
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{
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// The solution was borrowed from a post by Ben Alpert:
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// https://benalpert.com/2014/04/02/dispatch-once-initialization-on-the-main-thread.html
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// See also: https://www.mikeash.com/pyblog/friday-qa-2014-06-06-secrets-of-dispatch_once.html
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if (RCTIsMainQueue()) {
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dispatch_once(onceToken, block);
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} else {
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if (DISPATCH_EXPECT(*onceToken == 0L, NO)) {
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dispatch_sync(dispatch_get_main_queue(), ^{
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dispatch_once(onceToken, block);
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});
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}
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}
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}
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CGFloat RCTScreenScale()
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{
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static dispatch_once_t onceToken;
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static CGFloat scale;
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RCTUnsafeExecuteOnMainQueueOnceSync(&onceToken, ^{
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scale = [UIScreen mainScreen].scale;
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});
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return scale;
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}
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CGSize RCTScreenSize()
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{
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// FIXME: this caches the bounds at app start, whatever those were, and then
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// doesn't update when the device is rotated. We need to find another thread-
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// safe way to get the screen size.
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static CGSize size;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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RCTUnsafeExecuteOnMainQueueSync(^{
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size = [UIScreen mainScreen].bounds.size;
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});
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});
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return size;
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}
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CGFloat RCTRoundPixelValue(CGFloat value)
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{
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CGFloat scale = RCTScreenScale();
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return round(value * scale) / scale;
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}
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CGFloat RCTCeilPixelValue(CGFloat value)
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{
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CGFloat scale = RCTScreenScale();
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return ceil(value * scale) / scale;
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}
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CGFloat RCTFloorPixelValue(CGFloat value)
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{
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CGFloat scale = RCTScreenScale();
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return floor(value * scale) / scale;
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}
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CGSize RCTSizeInPixels(CGSize pointSize, CGFloat scale)
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{
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return (CGSize){
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ceil(pointSize.width * scale),
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ceil(pointSize.height * scale),
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};
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}
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void RCTSwapClassMethods(Class cls, SEL original, SEL replacement)
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{
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Method originalMethod = class_getClassMethod(cls, original);
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IMP originalImplementation = method_getImplementation(originalMethod);
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const char *originalArgTypes = method_getTypeEncoding(originalMethod);
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Method replacementMethod = class_getClassMethod(cls, replacement);
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IMP replacementImplementation = method_getImplementation(replacementMethod);
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const char *replacementArgTypes = method_getTypeEncoding(replacementMethod);
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if (class_addMethod(cls, original, replacementImplementation, replacementArgTypes)) {
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class_replaceMethod(cls, replacement, originalImplementation, originalArgTypes);
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} else {
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method_exchangeImplementations(originalMethod, replacementMethod);
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}
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}
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void RCTSwapInstanceMethods(Class cls, SEL original, SEL replacement)
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{
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Method originalMethod = class_getInstanceMethod(cls, original);
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IMP originalImplementation = method_getImplementation(originalMethod);
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const char *originalArgTypes = method_getTypeEncoding(originalMethod);
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Method replacementMethod = class_getInstanceMethod(cls, replacement);
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IMP replacementImplementation = method_getImplementation(replacementMethod);
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const char *replacementArgTypes = method_getTypeEncoding(replacementMethod);
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if (class_addMethod(cls, original, replacementImplementation, replacementArgTypes)) {
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class_replaceMethod(cls, replacement, originalImplementation, originalArgTypes);
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} else {
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method_exchangeImplementations(originalMethod, replacementMethod);
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}
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}
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BOOL RCTClassOverridesClassMethod(Class cls, SEL selector)
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{
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return RCTClassOverridesInstanceMethod(object_getClass(cls), selector);
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}
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BOOL RCTClassOverridesInstanceMethod(Class cls, SEL selector)
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{
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unsigned int numberOfMethods;
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Method *methods = class_copyMethodList(cls, &numberOfMethods);
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for (unsigned int i = 0; i < numberOfMethods; i++) {
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if (method_getName(methods[i]) == selector) {
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free(methods);
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return YES;
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}
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}
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free(methods);
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return NO;
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}
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NSDictionary<NSString *, id> *RCTMakeError(NSString *message,
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id __nullable toStringify,
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NSDictionary<NSString *, id> *__nullable extraData)
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{
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if (toStringify) {
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message = [message stringByAppendingString:[toStringify description]];
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}
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NSMutableDictionary<NSString *, id> *error = [extraData mutableCopy] ?: [NSMutableDictionary new];
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error[@"message"] = message;
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return error;
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}
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NSDictionary<NSString *, id> *RCTMakeAndLogError(NSString *message,
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id __nullable toStringify,
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NSDictionary<NSString *, id> *__nullable extraData)
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{
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NSDictionary<NSString *, id> *error = RCTMakeError(message, toStringify, extraData);
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RCTLogError(@"\nError: %@", error);
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return error;
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}
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NSDictionary<NSString *, id> *RCTJSErrorFromNSError(NSError *error)
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{
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NSString *codeWithDomain = [NSString stringWithFormat:@"E%@%lld", error.domain.uppercaseString, (long long)error.code];
|
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return RCTJSErrorFromCodeMessageAndNSError(codeWithDomain,
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error.localizedDescription,
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error);
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}
|
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// TODO: Can we just replace RCTMakeError with this function instead?
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NSDictionary<NSString *, id> *RCTJSErrorFromCodeMessageAndNSError(NSString *code,
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NSString *message,
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NSError *__nullable error)
|
|
{
|
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NSString *errorMessage;
|
|
NSArray<NSString *> *stackTrace = [NSThread callStackSymbols];
|
|
NSMutableDictionary *userInfo;
|
|
NSMutableDictionary<NSString *, id> *errorInfo =
|
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[NSMutableDictionary dictionaryWithObject:stackTrace forKey:@"nativeStackIOS"];
|
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if (error) {
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errorMessage = error.localizedDescription ?: @"Unknown error from a native module";
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errorInfo[@"domain"] = error.domain ?: RCTErrorDomain;
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if (error.userInfo) {
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userInfo = [error.userInfo mutableCopy];
|
|
if (userInfo != nil && userInfo[NSUnderlyingErrorKey] != nil) {
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NSError *underlyingError = error.userInfo[NSUnderlyingErrorKey];
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NSString *underlyingCode = [NSString stringWithFormat:@"%d", (int)underlyingError.code];
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userInfo[NSUnderlyingErrorKey] = RCTJSErrorFromCodeMessageAndNSError(underlyingCode, @"underlying error", underlyingError);
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}
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}
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} else {
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errorMessage = @"Unknown error from a native module";
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errorInfo[@"domain"] = RCTErrorDomain;
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userInfo = nil;
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}
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errorInfo[@"code"] = code ?: RCTErrorUnspecified;
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errorInfo[@"userInfo"] = RCTNullIfNil(userInfo);
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// Allow for explicit overriding of the error message
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errorMessage = message ?: errorMessage;
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return RCTMakeError(errorMessage, nil, errorInfo);
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}
|
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BOOL RCTRunningInTestEnvironment(void)
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{
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static BOOL isTestEnvironment = NO;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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NSDictionary *environment = [[NSProcessInfo processInfo] environment];
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|
isTestEnvironment = objc_lookUpClass("SenTestCase") ||
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objc_lookUpClass("XCTest") ||
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objc_lookUpClass("SnapshotTestAppDelegate") ||
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[environment[@"IS_TESTING"] boolValue];
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});
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return isTestEnvironment;
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}
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BOOL RCTRunningInAppExtension(void)
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{
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return [[[[NSBundle mainBundle] bundlePath] pathExtension] isEqualToString:@"appex"];
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}
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UIApplication *__nullable RCTSharedApplication(void)
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{
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if (RCTRunningInAppExtension()) {
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return nil;
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|
}
|
|
return [[UIApplication class] performSelector:@selector(sharedApplication)];
|
|
}
|
|
|
|
UIWindow *__nullable RCTKeyWindow(void)
|
|
{
|
|
if (RCTRunningInAppExtension()) {
|
|
return nil;
|
|
}
|
|
|
|
// TODO: replace with a more robust solution
|
|
return RCTSharedApplication().keyWindow;
|
|
}
|
|
|
|
UIViewController *__nullable RCTPresentedViewController(void)
|
|
{
|
|
if (RCTRunningInAppExtension()) {
|
|
return nil;
|
|
}
|
|
|
|
UIViewController *controller = RCTKeyWindow().rootViewController;
|
|
UIViewController *presentedController = controller.presentedViewController;
|
|
while (presentedController && ![presentedController isBeingDismissed]) {
|
|
controller = presentedController;
|
|
presentedController = controller.presentedViewController;
|
|
}
|
|
|
|
return controller;
|
|
}
|
|
|
|
BOOL RCTForceTouchAvailable(void)
|
|
{
|
|
static BOOL forceSupported;
|
|
static dispatch_once_t onceToken;
|
|
dispatch_once(&onceToken, ^{
|
|
forceSupported = [UITraitCollection class] &&
|
|
[UITraitCollection instancesRespondToSelector:@selector(forceTouchCapability)];
|
|
});
|
|
|
|
return forceSupported &&
|
|
(RCTKeyWindow() ?: [UIView new]).traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable;
|
|
}
|
|
|
|
NSError *RCTErrorWithMessage(NSString *message)
|
|
{
|
|
NSDictionary<NSString *, id> *errorInfo = @{NSLocalizedDescriptionKey: message};
|
|
return [[NSError alloc] initWithDomain:RCTErrorDomain code:0 userInfo:errorInfo];
|
|
}
|
|
|
|
double RCTZeroIfNaN(double value)
|
|
{
|
|
return isnan(value) || isinf(value) ? 0 : value;
|
|
}
|
|
|
|
double RCTSanitizeNaNValue(double value, NSString *property)
|
|
{
|
|
if (!isnan(value) && !isinf(value)) {
|
|
return value;
|
|
}
|
|
|
|
RCTLogWarn(@"The value `%@` equals NaN or INF and will be replaced by `0`.", property);
|
|
return 0;
|
|
}
|
|
|
|
NSURL *RCTDataURL(NSString *mimeType, NSData *data)
|
|
{
|
|
return [NSURL URLWithString:
|
|
[NSString stringWithFormat:@"data:%@;base64,%@", mimeType,
|
|
[data base64EncodedStringWithOptions:(NSDataBase64EncodingOptions)0]]];
|
|
}
|
|
|
|
BOOL RCTIsGzippedData(NSData *__nullable); // exposed for unit testing purposes
|
|
BOOL RCTIsGzippedData(NSData *__nullable data)
|
|
{
|
|
UInt8 *bytes = (UInt8 *)data.bytes;
|
|
return (data.length >= 2 && bytes[0] == 0x1f && bytes[1] == 0x8b);
|
|
}
|
|
|
|
NSData *__nullable RCTGzipData(NSData *__nullable input, float level)
|
|
{
|
|
if (input.length == 0 || RCTIsGzippedData(input)) {
|
|
return input;
|
|
}
|
|
|
|
void *libz = dlopen("/usr/lib/libz.dylib", RTLD_LAZY);
|
|
int (*deflateInit2_)(z_streamp, int, int, int, int, int, const char *, int) = dlsym(libz, "deflateInit2_");
|
|
int (*deflate)(z_streamp, int) = dlsym(libz, "deflate");
|
|
int (*deflateEnd)(z_streamp) = dlsym(libz, "deflateEnd");
|
|
|
|
z_stream stream;
|
|
stream.zalloc = Z_NULL;
|
|
stream.zfree = Z_NULL;
|
|
stream.opaque = Z_NULL;
|
|
stream.avail_in = (uint)input.length;
|
|
stream.next_in = (Bytef *)input.bytes;
|
|
stream.total_out = 0;
|
|
stream.avail_out = 0;
|
|
|
|
static const NSUInteger RCTGZipChunkSize = 16384;
|
|
|
|
NSMutableData *output = nil;
|
|
int compression = (level < 0.0f)? Z_DEFAULT_COMPRESSION: (int)(roundf(level * 9));
|
|
if (deflateInit2(&stream, compression, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY) == Z_OK) {
|
|
output = [NSMutableData dataWithLength:RCTGZipChunkSize];
|
|
while (stream.avail_out == 0) {
|
|
if (stream.total_out >= output.length) {
|
|
output.length += RCTGZipChunkSize;
|
|
}
|
|
stream.next_out = (uint8_t *)output.mutableBytes + stream.total_out;
|
|
stream.avail_out = (uInt)(output.length - stream.total_out);
|
|
deflate(&stream, Z_FINISH);
|
|
}
|
|
deflateEnd(&stream);
|
|
output.length = stream.total_out;
|
|
}
|
|
|
|
dlclose(libz);
|
|
|
|
return output;
|
|
}
|
|
|
|
static NSString *RCTRelativePathForURL(NSString *basePath, NSURL *__nullable URL)
|
|
{
|
|
if (!URL.fileURL) {
|
|
// Not a file path
|
|
return nil;
|
|
}
|
|
NSString *path = [NSString stringWithUTF8String:[URL fileSystemRepresentation]];
|
|
if (![path hasPrefix:basePath]) {
|
|
// Not a bundle-relative file
|
|
return nil;
|
|
}
|
|
path = [path substringFromIndex:basePath.length];
|
|
if ([path hasPrefix:@"/"]) {
|
|
path = [path substringFromIndex:1];
|
|
}
|
|
return path;
|
|
}
|
|
|
|
NSString *__nullable RCTLibraryPath(void)
|
|
{
|
|
static NSString *libraryPath = nil;
|
|
static dispatch_once_t onceToken;
|
|
dispatch_once(&onceToken, ^{
|
|
libraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) lastObject];
|
|
});
|
|
return libraryPath;
|
|
}
|
|
|
|
NSString *__nullable RCTHomePath(void)
|
|
{
|
|
static NSString *homePath = nil;
|
|
static dispatch_once_t onceToken;
|
|
dispatch_once(&onceToken, ^{
|
|
homePath = NSHomeDirectory();
|
|
});
|
|
return homePath;
|
|
}
|
|
|
|
NSString *__nullable RCTBundlePathForURL(NSURL *__nullable URL)
|
|
{
|
|
return RCTRelativePathForURL([[NSBundle mainBundle] resourcePath], URL);
|
|
|
|
}
|
|
|
|
NSString *__nullable RCTLibraryPathForURL(NSURL *__nullable URL)
|
|
{
|
|
return RCTRelativePathForURL(RCTLibraryPath(), URL);
|
|
}
|
|
|
|
NSString *__nullable RCTHomePathForURL(NSURL *__nullable URL)
|
|
{
|
|
return RCTRelativePathForURL(RCTHomePath(), URL);
|
|
}
|
|
|
|
static BOOL RCTIsImageAssetsPath(NSString *path)
|
|
{
|
|
NSString *extension = [path pathExtension];
|
|
return [extension isEqualToString:@"png"] || [extension isEqualToString:@"jpg"];
|
|
}
|
|
|
|
BOOL RCTIsBundleAssetURL(NSURL *__nullable imageURL)
|
|
{
|
|
return RCTIsImageAssetsPath(RCTBundlePathForURL(imageURL));
|
|
}
|
|
|
|
BOOL RCTIsLibraryAssetURL(NSURL *__nullable imageURL)
|
|
{
|
|
return RCTIsImageAssetsPath(RCTLibraryPathForURL(imageURL));
|
|
}
|
|
|
|
BOOL RCTIsHomeAssetURL(NSURL *__nullable imageURL)
|
|
{
|
|
return RCTIsImageAssetsPath(RCTHomePathForURL(imageURL));
|
|
}
|
|
|
|
BOOL RCTIsLocalAssetURL(NSURL *__nullable imageURL)
|
|
{
|
|
return RCTIsBundleAssetURL(imageURL) || RCTIsHomeAssetURL(imageURL);
|
|
}
|
|
|
|
static NSString *bundleName(NSBundle *bundle)
|
|
{
|
|
NSString *name = bundle.infoDictionary[@"CFBundleName"];
|
|
if (!name) {
|
|
name = [[bundle.bundlePath lastPathComponent] stringByDeletingPathExtension];
|
|
}
|
|
return name;
|
|
}
|
|
|
|
static NSBundle *bundleForPath(NSString *key)
|
|
{
|
|
static NSMutableDictionary *bundleCache;
|
|
if (!bundleCache) {
|
|
bundleCache = [NSMutableDictionary new];
|
|
bundleCache[@"main"] = [NSBundle mainBundle];
|
|
|
|
// Initialize every bundle in the array
|
|
for (NSString *path in [[NSBundle mainBundle] pathsForResourcesOfType:@"bundle" inDirectory:nil]) {
|
|
[NSBundle bundleWithPath:path];
|
|
}
|
|
|
|
// The bundles initialized above will now also be in `allBundles`
|
|
for (NSBundle *bundle in [NSBundle allBundles]) {
|
|
bundleCache[bundleName(bundle)] = bundle;
|
|
}
|
|
}
|
|
|
|
return bundleCache[key];
|
|
}
|
|
|
|
UIImage *__nullable RCTImageFromLocalBundleAssetURL(NSURL *imageURL)
|
|
{
|
|
if (![imageURL.scheme isEqualToString:@"file"]) {
|
|
// We only want to check for local file assets
|
|
return nil;
|
|
}
|
|
// Get the bundle URL, and add the image URL
|
|
// Note that we have to add both host and path, since host is the first "assets" part
|
|
// while path is the rest of the URL
|
|
NSURL *bundleImageUrl = [[[NSBundle mainBundle] bundleURL] URLByAppendingPathComponent:[imageURL.host stringByAppendingString:imageURL.path]];
|
|
return RCTImageFromLocalAssetURL(bundleImageUrl);
|
|
}
|
|
|
|
UIImage *__nullable RCTImageFromLocalAssetURL(NSURL *imageURL)
|
|
{
|
|
NSString *imageName = RCTBundlePathForURL(imageURL);
|
|
|
|
NSBundle *bundle = nil;
|
|
NSArray *imagePathComponents = [imageName pathComponents];
|
|
if ([imagePathComponents count] > 1 &&
|
|
[[[imagePathComponents firstObject] pathExtension] isEqualToString:@"bundle"]) {
|
|
NSString *bundlePath = [imagePathComponents firstObject];
|
|
bundle = bundleForPath([bundlePath stringByDeletingPathExtension]);
|
|
imageName = [imageName substringFromIndex:(bundlePath.length + 1)];
|
|
}
|
|
|
|
UIImage *image = nil;
|
|
if (imageName) {
|
|
if (bundle) {
|
|
image = [UIImage imageNamed:imageName inBundle:bundle compatibleWithTraitCollection:nil];
|
|
} else {
|
|
image = [UIImage imageNamed:imageName];
|
|
}
|
|
}
|
|
|
|
if (!image) {
|
|
// Attempt to load from the file system
|
|
const char* fileSystemCString = [imageURL fileSystemRepresentation];
|
|
if (fileSystemCString != NULL) {
|
|
NSString *filePath = [NSString stringWithUTF8String:fileSystemCString];
|
|
if (filePath.pathExtension.length == 0) {
|
|
filePath = [filePath stringByAppendingPathExtension:@"png"];
|
|
}
|
|
image = [UIImage imageWithContentsOfFile:filePath];
|
|
}
|
|
}
|
|
|
|
if (!image && !bundle) {
|
|
// We did not find the image in the mainBundle, check in other shipped frameworks.
|
|
NSArray<NSURL *> *possibleFrameworks = [[NSFileManager defaultManager] contentsOfDirectoryAtURL:[[NSBundle mainBundle] privateFrameworksURL]
|
|
includingPropertiesForKeys:@[]
|
|
options:0
|
|
error:nil];
|
|
for (NSURL *frameworkURL in possibleFrameworks) {
|
|
bundle = [NSBundle bundleWithURL:frameworkURL];
|
|
image = [UIImage imageNamed:imageName inBundle:bundle compatibleWithTraitCollection:nil];
|
|
if (image) {
|
|
RCTLogWarn(@"Image %@ not found in mainBundle, but found in %@", imageName, bundle);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return image;
|
|
}
|
|
|
|
RCT_EXTERN NSString *__nullable RCTTempFilePath(NSString *extension, NSError **error)
|
|
{
|
|
static NSError *setupError = nil;
|
|
static NSString *directory;
|
|
static dispatch_once_t onceToken;
|
|
dispatch_once(&onceToken, ^{
|
|
directory = [NSTemporaryDirectory() stringByAppendingPathComponent:@"ReactNative"];
|
|
// If the temporary directory already exists, we'll delete it to ensure
|
|
// that temp files from the previous run have all been deleted. This is not
|
|
// a security measure, it simply prevents the temp directory from using too
|
|
// much space, as the circumstances under which iOS clears it automatically
|
|
// are not well-defined.
|
|
NSFileManager *fileManager = [NSFileManager new];
|
|
if ([fileManager fileExistsAtPath:directory]) {
|
|
[fileManager removeItemAtPath:directory error:NULL];
|
|
}
|
|
if (![fileManager fileExistsAtPath:directory]) {
|
|
NSError *localError = nil;
|
|
if (![fileManager createDirectoryAtPath:directory
|
|
withIntermediateDirectories:YES
|
|
attributes:nil
|
|
error:&localError]) {
|
|
// This is bad
|
|
RCTLogError(@"Failed to create temporary directory: %@", localError);
|
|
setupError = localError;
|
|
directory = nil;
|
|
}
|
|
}
|
|
});
|
|
|
|
if (!directory || setupError) {
|
|
if (error) {
|
|
*error = setupError;
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
// Append a unique filename
|
|
NSString *filename = [NSUUID new].UUIDString;
|
|
if (extension) {
|
|
filename = [filename stringByAppendingPathExtension:extension];
|
|
}
|
|
return [directory stringByAppendingPathComponent:filename];
|
|
}
|
|
|
|
static void RCTGetRGBAColorComponents(CGColorRef color, CGFloat rgba[4])
|
|
{
|
|
CGColorSpaceModel model = CGColorSpaceGetModel(CGColorGetColorSpace(color));
|
|
const CGFloat *components = CGColorGetComponents(color);
|
|
switch (model)
|
|
{
|
|
case kCGColorSpaceModelMonochrome:
|
|
{
|
|
rgba[0] = components[0];
|
|
rgba[1] = components[0];
|
|
rgba[2] = components[0];
|
|
rgba[3] = components[1];
|
|
break;
|
|
}
|
|
case kCGColorSpaceModelRGB:
|
|
{
|
|
rgba[0] = components[0];
|
|
rgba[1] = components[1];
|
|
rgba[2] = components[2];
|
|
rgba[3] = components[3];
|
|
break;
|
|
}
|
|
case kCGColorSpaceModelCMYK:
|
|
case kCGColorSpaceModelDeviceN:
|
|
case kCGColorSpaceModelIndexed:
|
|
case kCGColorSpaceModelLab:
|
|
case kCGColorSpaceModelPattern:
|
|
case kCGColorSpaceModelUnknown:
|
|
// TODO: kCGColorSpaceModelXYZ should be added sometime after Xcode 10 release.
|
|
default:
|
|
{
|
|
|
|
#if RCT_DEBUG
|
|
//unsupported format
|
|
RCTLogError(@"Unsupported color model: %i", model);
|
|
#endif
|
|
|
|
rgba[0] = 0.0;
|
|
rgba[1] = 0.0;
|
|
rgba[2] = 0.0;
|
|
rgba[3] = 1.0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
NSString *RCTColorToHexString(CGColorRef color)
|
|
{
|
|
CGFloat rgba[4];
|
|
RCTGetRGBAColorComponents(color, rgba);
|
|
uint8_t r = rgba[0]*255;
|
|
uint8_t g = rgba[1]*255;
|
|
uint8_t b = rgba[2]*255;
|
|
uint8_t a = rgba[3]*255;
|
|
if (a < 255) {
|
|
return [NSString stringWithFormat:@"#%02x%02x%02x%02x", r, g, b, a];
|
|
} else {
|
|
return [NSString stringWithFormat:@"#%02x%02x%02x", r, g, b];
|
|
}
|
|
}
|
|
|
|
// (https://github.com/0xced/XCDFormInputAccessoryView/blob/master/XCDFormInputAccessoryView/XCDFormInputAccessoryView.m#L10-L14)
|
|
NSString *RCTUIKitLocalizedString(NSString *string)
|
|
{
|
|
NSBundle *UIKitBundle = [NSBundle bundleForClass:[UIApplication class]];
|
|
return UIKitBundle ? [UIKitBundle localizedStringForKey:string value:string table:nil] : string;
|
|
}
|
|
|
|
NSString *RCTHumanReadableType(NSObject *obj)
|
|
{
|
|
if ([obj isKindOfClass:[NSString class]]) {
|
|
return @"string";
|
|
} else if ([obj isKindOfClass:[NSNumber class]]) {
|
|
int intVal = [(NSNumber *)obj intValue];
|
|
if(intVal == 0 || intVal == 1) {
|
|
return @"boolean or number";
|
|
}
|
|
|
|
return @"number";
|
|
} else {
|
|
return NSStringFromClass([obj class]);
|
|
}
|
|
}
|
|
|
|
NSString *__nullable RCTGetURLQueryParam(NSURL *__nullable URL, NSString *param)
|
|
{
|
|
RCTAssertParam(param);
|
|
if (!URL) {
|
|
return nil;
|
|
}
|
|
|
|
NSURLComponents *components = [NSURLComponents componentsWithURL:URL
|
|
resolvingAgainstBaseURL:YES];
|
|
for (NSURLQueryItem *queryItem in [components.queryItems reverseObjectEnumerator]) {
|
|
if ([queryItem.name isEqualToString:param]) {
|
|
return queryItem.value;
|
|
}
|
|
}
|
|
|
|
return nil;
|
|
}
|
|
|
|
NSURL *__nullable RCTURLByReplacingQueryParam(NSURL *__nullable URL, NSString *param, NSString *__nullable value)
|
|
{
|
|
RCTAssertParam(param);
|
|
if (!URL) {
|
|
return nil;
|
|
}
|
|
|
|
NSURLComponents *components = [NSURLComponents componentsWithURL:URL
|
|
resolvingAgainstBaseURL:YES];
|
|
|
|
__block NSInteger paramIndex = NSNotFound;
|
|
NSMutableArray<NSURLQueryItem *> *queryItems = [components.queryItems mutableCopy];
|
|
[queryItems enumerateObjectsWithOptions:NSEnumerationReverse usingBlock:
|
|
^(NSURLQueryItem *item, NSUInteger i, BOOL *stop) {
|
|
if ([item.name isEqualToString:param]) {
|
|
paramIndex = i;
|
|
*stop = YES;
|
|
}
|
|
}];
|
|
|
|
if (!value) {
|
|
if (paramIndex != NSNotFound) {
|
|
[queryItems removeObjectAtIndex:paramIndex];
|
|
}
|
|
} else {
|
|
NSURLQueryItem *newItem = [NSURLQueryItem queryItemWithName:param
|
|
value:value];
|
|
if (paramIndex == NSNotFound) {
|
|
[queryItems addObject:newItem];
|
|
} else {
|
|
[queryItems replaceObjectAtIndex:paramIndex withObject:newItem];
|
|
}
|
|
}
|
|
components.queryItems = queryItems;
|
|
return components.URL;
|
|
}
|
|
|
|
RCT_EXTERN NSString *RCTDropReactPrefixes(NSString *s)
|
|
{
|
|
if ([s hasPrefix:@"RK"]) {
|
|
return [s substringFromIndex:2];
|
|
} else if ([s hasPrefix:@"RCT"]) {
|
|
return [s substringFromIndex:3];
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
RCT_EXTERN BOOL RCTUIManagerTypeForTagIsFabric(NSNumber *reactTag)
|
|
{
|
|
// See https://github.com/facebook/react/pull/12587
|
|
return [reactTag integerValue] % 2 == 0;
|
|
}
|
|
|
|
RCT_EXTERN BOOL RCTValidateTypeOfViewCommandArgument(NSObject *obj, id expectedClass, NSString const * expectedType, NSString const *componentName, NSString const * commandName, NSString const * argPos)
|
|
{
|
|
if (![obj isKindOfClass:expectedClass]) {
|
|
NSString *kindOfClass = RCTHumanReadableType(obj);
|
|
|
|
RCTLogError(
|
|
@"%@ command %@ received %@ argument of type %@, expected %@.",
|
|
componentName,
|
|
commandName,
|
|
argPos,
|
|
kindOfClass,
|
|
expectedType);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|