klx_teacher/KulexiuForTeacher/KulexiuForTeacher/Module/Live/View/CreateLiveBodyView.m

//
//  CreateLiveBodyView.m
//  KulexiuForTeacher
//
//  Created by Kyle on 2022/3/30.
//

#import "CreateLiveBodyView.h"
#import <UIView+ExtensionForDotLine.h>

@interface CreateLiveBodyView ()<UITextFieldDelegate,UITextViewDelegate>

@property (weak, nonatomic) IBOutlet UITextField *titleField;

@property (weak, nonatomic) IBOutlet UITextView *inputView;

@property (weak, nonatomic) IBOutlet UILabel *tipsLabel;

@property (weak, nonatomic) IBOutlet UILabel *countLabel;

@property (weak, nonatomic) IBOutlet UIView *buttonBgView;

@property (nonatomic, copy) CreateLiveCallback callback;

@property (nonatomic, copy) ChooseLiveCoverCallback chooseCoverBlock;

@end

@implementation CreateLiveBodyView

- (void)awakeFromNib {
    [super awakeFromNib];
    self.titleField.delegate = self;
    self.titleField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"请输入直播标题" attributes:@{NSForegroundColorAttributeName:HexRGB(0xc1c1c1)}];
    self.inputView.delegate = self;
    [self.buttonBgView drawBoardDottedLine:1.0f length:4 space:4 cornerRadius:10.0f lineColor:HexRGB(0xe3e3e3)];
}

+ (instancetype)shareInstance {
    CreateLiveBodyView *view = [[[NSBundle mainBundle] loadNibNamed:@"CreateLiveBodyView" owner:nil options:nil] firstObject];
    return view;
}

- (void)createSureCallback:(CreateLiveCallback)callback {
    if (callback) {
        self.callback = callback;
    }
}

- (void)chooseCoverCallback:(ChooseLiveCoverCallback)callback {
    if (callback) {
        self.chooseCoverBlock = callback;
    }
}

- (IBAction)chooseCover:(id)sender {
    if (self.chooseCoverBlock) {
        self.chooseCoverBlock();
    }
}

- (IBAction)sureAction:(id)sender {
    [self endEditing:YES];
    if ([NSString isEmptyString:self.titleField.text]) {
        [LOADING_MANAGER MBShowAUTOHidingInWindow:@"请输入直播标题"];
        return;
    }
    if ([NSString isEmptyString:self.inputView.text]) {
        [LOADING_MANAGER MBShowAUTOHidingInWindow:@"请输入直播内容"];
        return;
    }
    if ([self.timeLabel.text isEqualToString:@"请选择直播时长"]) {
        [LOADING_MANAGER MBShowAUTOHidingInWindow:@"请选择直播时长"];
        return;
    }
    if (self.callback) {
        self.callback(NO,self.titleField.text, self.inputView.text);
    }
}

- (IBAction)chooseTime:(id)sender {
    [self endEditing:YES];
    if (self.callback) {
        self.callback(YES, @"", @"");
    }
}

#pragma mark   ---- delegate

- (void)textViewDidBeginEditing:(UITextView *)textView {
    self.tipsLabel.hidden = YES;
}
- (void)textViewDidEndEditing:(UITextView *)textView {
    if ([NSString isEmptyString:textView.text]) {
        self.tipsLabel.hidden = NO;
    }
}

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
    UITextRange *markedTextRange = textView.markedTextRange;
    if (markedTextRange) {
        // 当前处于拼音输入状态，暂不更新 attributedText
        return YES;
    }

    NSString *newText = [[textView text] stringByReplacingCharactersInRange:range withString:text];
    if (newText.length > 200) {
        newText = [newText substringWithRange:NSMakeRange(0, 200)];
        textView.text = newText;
    }
    return YES;
}

- (void)updateTextViewLineHeight:(UITextView *)textView {
    UITextRange *markedTextRange = textView.markedTextRange;
    if (markedTextRange) {
        // 当前处于拼音输入状态，暂不更新 attributedText
        return;
    }
    [UIView setAnimationsEnabled:YES];
}

- (void)textViewDidChange:(UITextView *)textView {
    // 获取当前高亮的部分（如果正在拼音输入状态）
        UITextRange *selectedRange = [textView markedTextRange];
        UITextPosition *position = [textView positionFromPosition:selectedRange.start offset:0];
        
        // 如果没有高亮选择的文本，说明不是拼音输入状态
    if (!position) {
        // 获取当前textView的内容
        NSString *currentText = textView.text;
        
        // 如果文本超出最大长度，进行截取
        if (currentText.length > 200) {
            NSString *limitedText = [currentText substringToIndex:200];
            textView.text = limitedText;
        }
        self.countLabel.text = [NSString stringWithFormat:@"%zd/200",textView.text.length];
    }
    [self updateTextViewLineHeight:textView];
}


- (BOOL)textViewShouldEndEditing:(UITextView *)textView {
    [self endEditing:YES];
    return YES;
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    [self endEditing:YES];
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    if ([string isEqualToString:@"\n"]) {
        [self endEditing:YES];
        return YES;
    }
    return YES;
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end