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91 lines
2.5 KiB
91 lines
2.5 KiB
//
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// FLEXCarouselCell.m
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// FLEX
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//
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// Created by Tanner Bennett on 7/17/19.
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// Copyright © 2019 Flipboard. All rights reserved.
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//
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#import "FLEXCarouselCell.h"
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#import "FLEXColor.h"
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#import "UIView+FLEX_Layout.h"
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@interface FLEXCarouselCell ()
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@property (nonatomic, readonly) UILabel *titleLabel;
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@property (nonatomic, readonly) UIView *selectionIndicatorStripe;
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@property (nonatomic) BOOL constraintsInstalled;
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@end
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@implementation FLEXCarouselCell
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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_titleLabel = [UILabel new];
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_selectionIndicatorStripe = [UIView new];
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self.titleLabel.font = [UIFont preferredFontForTextStyle:UIFontTextStyleBody];
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self.titleLabel.adjustsFontForContentSizeCategory = YES;
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self.selectionIndicatorStripe.backgroundColor = self.tintColor;
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[self.contentView addSubview:self.titleLabel];
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[self.contentView addSubview:self.selectionIndicatorStripe];
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[self installConstraints];
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[self updateAppearance];
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}
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return self;
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}
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- (void)updateAppearance {
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self.selectionIndicatorStripe.hidden = !self.selected;
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if (self.selected) {
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self.titleLabel.textColor = self.tintColor;
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} else {
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self.titleLabel.textColor = [FLEXColor deemphasizedTextColor];
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}
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}
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#pragma mark Public
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- (NSString *)title {
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return self.titleLabel.text;
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}
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- (void)setTitle:(NSString *)title {
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self.titleLabel.text = title;
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[self.titleLabel sizeToFit];
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[self setNeedsLayout];
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}
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#pragma mark Overrides
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- (void)prepareForReuse {
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[super prepareForReuse];
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[self updateAppearance];
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}
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- (void)installConstraints {
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CGFloat stripeHeight = 2;
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self.titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
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self.selectionIndicatorStripe.translatesAutoresizingMaskIntoConstraints = NO;
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UIView *superview = self.contentView;
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[self.titleLabel pinEdgesToSuperviewWithInsets:UIEdgeInsetsMake(10, 15, 8 + stripeHeight, 15)];
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[self.selectionIndicatorStripe.leadingAnchor constraintEqualToAnchor:superview.leadingAnchor].active = YES;
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[self.selectionIndicatorStripe.bottomAnchor constraintEqualToAnchor:superview.bottomAnchor].active = YES;
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[self.selectionIndicatorStripe.trailingAnchor constraintEqualToAnchor:superview.trailingAnchor].active = YES;
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[self.selectionIndicatorStripe.heightAnchor constraintEqualToConstant:stripeHeight].active = YES;
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}
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- (void)setSelected:(BOOL)selected {
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super.selected = selected;
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[self updateAppearance];
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}
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@end
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