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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #import "ios/chrome/browser/ui/suggestions/suggestions_article_item.h" | |
| 6 | |
| 7 #import "ios/chrome/browser/ui/uikit_ui_util.h" | |
| 8 | |
| 9 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
| 10 #error "This file requires ARC support." | |
| 11 #endif | |
| 12 | |
| 13 namespace { | |
| 14 const CGFloat kImageSize = 100; | |
| 15 } | |
| 16 | |
| 17 @interface SuggestionsArticleItem () | |
| 18 | |
| 19 @property(nonatomic, copy) NSString* title; | |
| 20 @property(nonatomic, copy) NSString* subtitle; | |
| 21 @property(nonatomic, strong) UIImage* image; | |
| 22 | |
| 23 @end | |
| 24 | |
| 25 @implementation SuggestionsArticleItem | |
| 26 | |
| 27 @synthesize title = _title; | |
| 28 @synthesize subtitle = _subtitle; | |
| 29 @synthesize image = _image; | |
| 30 | |
| 31 - (instancetype)initWithType:(NSInteger)type | |
| 32 title:(NSString*)title | |
| 33 subtitle:(NSString*)subtitle | |
| 34 image:(UIImage*)image { | |
| 35 self = [super initWithType:type]; | |
| 36 if (self) { | |
| 37 self.cellClass = [SuggestionsArticleCell class]; | |
| 38 _title = [title copy]; | |
| 39 _subtitle = [subtitle copy]; | |
| 40 _image = image; | |
| 41 } | |
| 42 return self; | |
| 43 } | |
| 44 | |
| 45 - (void)configureCell:(SuggestionsArticleCell*)cell { | |
| 46 [super configureCell:cell]; | |
| 47 cell.titleLabel.text = _title; | |
| 48 cell.subtitleLabel.text = _subtitle; | |
| 49 cell.imageView.image = _image; | |
| 50 } | |
| 51 | |
| 52 @end | |
| 53 | |
| 54 @implementation SuggestionsArticleCell | |
| 55 | |
| 56 @synthesize titleLabel = _titleLabel; | |
| 57 @synthesize subtitleLabel = _subtitleLabel; | |
| 58 @synthesize imageView = _imageView; | |
| 59 | |
| 60 - (instancetype)initWithFrame:(CGRect)frame { | |
| 61 self = [super initWithFrame:frame]; | |
| 62 if (self) { | |
| 63 _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero]; | |
| 64 _subtitleLabel = [[UILabel alloc] initWithFrame:CGRectZero]; | |
| 65 _imageView = [[UIImageView alloc] initWithFrame:CGRectZero]; | |
| 66 UIView* imageContainer = [[UIView alloc] initWithFrame:CGRectZero]; | |
| 67 | |
| 68 _subtitleLabel.numberOfLines = 0; | |
| 69 | |
| 70 imageContainer.translatesAutoresizingMaskIntoConstraints = NO; | |
| 71 _imageView.translatesAutoresizingMaskIntoConstraints = NO; | |
| 72 _titleLabel.translatesAutoresizingMaskIntoConstraints = NO; | |
| 73 _subtitleLabel.translatesAutoresizingMaskIntoConstraints = NO; | |
| 74 | |
| 75 [imageContainer addSubview:_imageView]; | |
| 76 [self.contentView addSubview:imageContainer]; | |
| 77 [self.contentView addSubview:_titleLabel]; | |
| 78 [self.contentView addSubview:_subtitleLabel]; | |
| 79 | |
| 80 ApplyVisualConstraintsWithMetrics( | |
| 81 @[ | |
| 82 @"H:|-[title]-[imageContainer(imageSize)]-|", | |
| 83 @"H:|[image(imageSize)]", @"H:|-[text]-[imageContainer]", | |
| 84 @"V:|[image(imageSize)]", @"V:|-[title]-[text]-|", | |
| 85 @"V:|-[imageContainer(>=imageSize)]-|" | |
| 86 ], | |
| 87 @{ | |
| 88 @"image" : _imageView, | |
| 89 @"imageContainer" : imageContainer, | |
| 90 @"title" : _titleLabel, | |
| 91 @"text" : _subtitleLabel | |
| 92 }, | |
| 93 @{ @"imageSize" : @(kImageSize) }); | |
| 94 } | |
| 95 return self; | |
| 96 } | |
| 97 | |
| 98 #pragma mark - UIView | |
| 99 | |
| 100 // Implements -layoutSubviews as per instructions in documentation for | |
| 101 // +[MDCCollectionViewCell cr_preferredHeightForWidth:forItem:]. | |
| 102 - (void)layoutSubviews { | |
| 103 [super layoutSubviews]; | |
| 104 | |
| 105 // Adjust the text label preferredMaxLayoutWidth when the parent's width | |
| 106 // changes, for instance on screen rotation. | |
| 107 CGFloat parentWidth = CGRectGetWidth(self.contentView.bounds); | |
| 108 self.subtitleLabel.preferredMaxLayoutWidth = parentWidth - kImageSize - 3 * 8; | |
| 109 | |
| 110 // Re-layout with the new preferred width to allow the label to adjust its | |
| 111 // height. | |
| 112 [super layoutSubviews]; | |
| 113 } | |
| 114 | |
| 115 @end | |
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