chore: import upstream snapshot with attribution

2026-07-13 12:35:01 +08:00
commit a2e318a963
2974 changed files with 158180 additions and 0 deletions
@@ -0,0 +1,174 @@
+//
+//  TLScannerView.m
+//  TLChat
+//
+//  Created by 李伯坤 on 16/3/4.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import "TLScannerView.h"
+
+@interface TLScannerView ()
+{
+    NSTimer *timer;
+}
+
+@property (nonatomic, strong) UIView *bgView;
+
+@property (nonatomic, strong) UIImageView *topLeftView;
+
+@property (nonatomic, strong) UIImageView *topRightView;
+
+@property (nonatomic, strong) UIImageView *btmLeftView;
+
+@property (nonatomic, strong) UIImageView *btmRightView;
+
+@property (nonatomic, strong) UIImageView *scannerLine;
+
+@end
+
+@implementation TLScannerView
+
+- (id)initWithFrame:(CGRect)frame
+{
+    if (self = [super initWithFrame:frame]) {
+        [self setClipsToBounds:YES];
+        [self addSubview:self.bgView];
+        [self addSubview:self.topLeftView];
+        [self addSubview:self.topRightView];
+        [self addSubview:self.btmLeftView];
+        [self addSubview:self.btmRightView];
+        [self addSubview:self.scannerLine];
+        [self p_addMasonry];
+    }
+    return self;
+}
+
+#pragma mark - Public Methods -
+- (void)startScanner
+{
+    [self stopScanner];
+    timer = [NSTimer scheduledTimerWithTimeInterval:1.0 / 60 block:^(NSTimer *timer) {
+        if (self.hiddenScannerIndicator) {
+            return;
+        }
+        self.scannerLine.centerX = self.bgView.centerX;
+        self.scannerLine.width = self.bgView.width * 1.4;
+        self.scannerLine.height = 10;
+        if (self.scannerLine.y + self.scannerLine.height >= self.height) {
+            self.scannerLine.y = 0;
+        }
+        else {
+            self.scannerLine.y ++;
+        }
+    } repeats:YES];
+    [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
+}
+
+- (void)stopScanner
+{
+    if (timer) {
+        [timer invalidate];
+        timer = nil;
+    }
+}
+
+- (void)setHiddenScannerIndicator:(BOOL)hiddenScannerIndicator
+{
+    if (hiddenScannerIndicator == _hiddenScannerIndicator) {
+        return;
+    }
+    
+    if (hiddenScannerIndicator) {
+        self.scannerLine.y = 0;
+        [self.scannerLine setHidden:YES];
+        _hiddenScannerIndicator = hiddenScannerIndicator;
+    }
+    else {
+        _hiddenScannerIndicator = hiddenScannerIndicator;
+        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+            self.scannerLine.y = 0;
+            [self.scannerLine setHidden:hiddenScannerIndicator];
+        });
+    }
+}
+
+#pragma mark - Private Methods -
+- (void)p_addMasonry
+{
+    [_bgView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.mas_equalTo(self);
+    }];
+    [_topLeftView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.and.top.mas_equalTo(self);
+        make.width.and.height.mas_lessThanOrEqualTo(self);
+    }];
+    [_topRightView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.right.and.top.mas_equalTo(self);
+        make.width.and.height.mas_lessThanOrEqualTo(self);
+    }];
+    [_btmLeftView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.and.bottom.mas_equalTo(self);
+        make.width.and.height.mas_lessThanOrEqualTo(self);
+    }];
+    [_btmRightView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.right.and.bottom.mas_equalTo(self);
+        make.width.and.height.mas_lessThanOrEqualTo(self);
+    }];
+}
+
+#pragma mark - Getter -
+- (UIView *)bgView
+{
+    if (_bgView == nil) {
+        _bgView = [[UIView alloc] init];
+        [_bgView setBackgroundColor:[UIColor clearColor]];
+        [_bgView.layer setMasksToBounds:YES];
+        [_bgView.layer setBorderWidth:BORDER_WIDTH_1PX];
+        [_bgView.layer setBorderColor:[UIColor whiteColor].CGColor];
+    }
+    return _bgView;
+}
+
+- (UIImageView *)topLeftView
+{
+    if (_topLeftView == nil) {
+        _topLeftView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"scanner_top_left"]];
+    }
+    return _topLeftView;
+}
+
+- (UIImageView *)topRightView
+{
+    if (_topRightView == nil) {
+        _topRightView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"scanner_top_right"]];
+    }
+    return _topRightView;
+}
+
+- (UIImageView *)btmLeftView
+{
+    if (_btmLeftView == nil) {
+        _btmLeftView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"scanner_bottom_left"]];
+    }
+    return _btmLeftView;
+}
+
+- (UIImageView *)btmRightView
+{
+    if (_btmRightView == nil) {
+        _btmRightView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"scanner_bottom_right"]];
+    }
+    return _btmRightView;
+}
+
+- (UIImageView *)scannerLine
+{
+    if (_scannerLine == nil) {
+        _scannerLine = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"scanner_line"]];
+        [_scannerLine setFrame:CGRectZero];
+    }
+    return _scannerLine;
+}
+
+@end