//
//  UITextField+MSRTL.m
//  YuMi
//
//  Created by duoban on 2024/4/11.
//

#import "UITextField+MSRTL.h"
@implementation UITextField (MSRTL)

+ (void)load {

        static dispatch_once_t onceToken;
        dispatch_once(&onceToken, ^{
          
        Method oldInitMethod = class_getInstanceMethod(self,@selector(initWithFrame:));
        Method newInitMethod = class_getInstanceMethod(self, @selector(msrtl_initWithFrame:));
            method_exchangeImplementations(oldInitMethod, newInitMethod);  //交换成功
            
//        Method oldTextMethod1 = class_getInstanceMethod(self,@selector(setPlaceholder:));
//        Method newTextMethod1 = class_getInstanceMethod(self, @selector(msrtl_setPlaceholder:));
//        method_exchangeImplementations(oldTextMethod1, newTextMethod1);  //交换成功
//        
//            Method oldTextMethod = class_getInstanceMethod(self,@selector(setTextAlignment:));
//            Method newTextMethod = class_getInstanceMethod(self, @selector(msrtl_setTextAlignment:));
//            method_exchangeImplementations(oldTextMethod, newTextMethod);  //交换成功
        Method oldMethod = class_getInstanceMethod(self,@selector(setAttributedPlaceholder:));
        Method newMethod = class_getInstanceMethod(self, @selector(msrtl_setAttributedPlaceholder:));
        method_exchangeImplementations(oldMethod, newMethod);  //交换成功
        });
    
   
}

- (void)msrtl_setTextAlignment:(NSTextAlignment)textAlignment {
    if (isMSRTL()) {
        if (textAlignment == NSTextAlignmentNatural || textAlignment == NSTextAlignmentLeft) {
            textAlignment = NSTextAlignmentRight;
        } else if (textAlignment == NSTextAlignmentRight) {
            textAlignment = NSTextAlignmentLeft;
        }
    }
    [self msrtl_setTextAlignment:textAlignment];
}
- (instancetype)msrtl_initWithFrame:(CGRect)frame {
    if ([self msrtl_initWithFrame:frame]) {

        if(isMSRTL()){
            self.textAlignment = NSTextAlignmentRight;
        }
    }
    return self;
}
- (void)msrtl_setAttributedPlaceholder:(NSAttributedString *)attributedPlaceholder{
        NSMutableAttributedString *att = [[NSMutableAttributedString alloc]initWithAttributedString:attributedPlaceholder];
        NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
        NSTextAlignment textAli =  NSTextAlignmentLeft;
        paragraph.alignment = textAli;
        [att addAttributes:@{NSParagraphStyleAttributeName: paragraph} range:[attributedPlaceholder.string rangeOfString:attributedPlaceholder.string]];
        [self msrtl_setAttributedPlaceholder:att];

}
- (void)msrtl_setPlaceholder:(NSString *)placeholder {
        if(placeholder == nil)return;
        NSAttributedString * attribute = [[NSAttributedString alloc] initWithString:placeholder];
        self.attributedPlaceholder = attribute;
}

@end