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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/content_suggestions/content_suggestions_favicon_i
tem.h" | |
| 6 | |
| 7 #import <UIKit/UIKit.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #import "ios/chrome/browser/ui/content_suggestions/content_suggestions_favicon_i
nternal_cell.h" | |
| 11 #import "ios/chrome/browser/ui/uikit_ui_util.h" | |
| 12 | |
| 13 #if !defined(__has_feature) || !__has_feature(objc_arc) | |
| 14 #error "This file requires ARC support." | |
| 15 #endif | |
| 16 | |
| 17 namespace { | |
| 18 // Space between two cells in the internal collection view. | |
| 19 const CGFloat kInternalCellSpacing = 40; | |
| 20 // Width of the cells in the internal collection view. | |
| 21 const CGFloat kInternalCellWidth = 70; | |
| 22 // Height of the cells in the internal collection view. | |
| 23 const CGFloat kInternalCellHeight = 120; | |
| 24 // Leading inset of the internal collection view. | |
| 25 const CGFloat kInternalLeadingSpacing = 16; | |
| 26 } // namespace | |
| 27 | |
| 28 #pragma mark - SugggestionsFaviconItem | |
| 29 | |
| 30 // The item is the data source of the inner collection view. | |
| 31 @interface ContentSuggestionsFaviconItem ()<UICollectionViewDataSource> { | |
| 32 NSMutableArray<NSString*>* _faviconTitles; | |
| 33 NSMutableArray<UIImage*>* _faviconImages; | |
| 34 } | |
| 35 | |
| 36 @end | |
| 37 | |
| 38 @implementation ContentSuggestionsFaviconItem | |
| 39 | |
| 40 @synthesize delegate = _delegate; | |
| 41 | |
| 42 - (instancetype)initWithType:(NSInteger)type { | |
| 43 self = [super initWithType:type]; | |
| 44 if (self) { | |
| 45 self.cellClass = [ContentSuggestionsFaviconCell class]; | |
| 46 _faviconTitles = [NSMutableArray array]; | |
| 47 _faviconImages = [NSMutableArray array]; | |
| 48 } | |
| 49 return self; | |
| 50 } | |
| 51 | |
| 52 - (void)addFavicon:(UIImage*)favicon withTitle:(NSString*)title { | |
| 53 if (!favicon || !title) | |
| 54 return; | |
| 55 | |
| 56 [_faviconImages addObject:favicon]; | |
| 57 [_faviconTitles addObject:title]; | |
| 58 } | |
| 59 | |
| 60 #pragma mark - UICollectionViewDataSource | |
| 61 | |
| 62 - (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView | |
| 63 cellForItemAtIndexPath:(NSIndexPath*)indexPath { | |
| 64 ContentSuggestionsFaviconInternalCell* cell = [collectionView | |
| 65 dequeueReusableCellWithReuseIdentifier: | |
| 66 [ContentSuggestionsFaviconInternalCell reuseIdentifier] | |
| 67 forIndexPath:indexPath]; | |
| 68 cell.faviconView.image = [_faviconImages objectAtIndex:indexPath.item]; | |
| 69 cell.titleLabel.text = [_faviconTitles objectAtIndex:indexPath.item]; | |
| 70 return cell; | |
| 71 } | |
| 72 | |
| 73 - (NSInteger)collectionView:(UICollectionView*)collectionView | |
| 74 numberOfItemsInSection:(NSInteger)section { | |
| 75 DCHECK([_faviconImages count] == [_faviconTitles count]); | |
| 76 return [_faviconImages count]; | |
| 77 } | |
| 78 | |
| 79 #pragma mark - CollectionViewItem | |
| 80 | |
| 81 - (void)configureCell:(ContentSuggestionsFaviconCell*)cell { | |
| 82 [super configureCell:cell]; | |
| 83 cell.collectionView.dataSource = self; | |
| 84 cell.delegate = self.delegate; | |
| 85 } | |
| 86 | |
| 87 @end | |
| 88 | |
| 89 #pragma mark - ContentSuggestionsFaviconCell | |
| 90 | |
| 91 // The cell is the delegate of the inner collection view. | |
| 92 @interface ContentSuggestionsFaviconCell ()<UICollectionViewDelegate> | |
| 93 | |
| 94 @end | |
| 95 | |
| 96 @implementation ContentSuggestionsFaviconCell | |
| 97 | |
| 98 @synthesize collectionView = _collectionView; | |
| 99 @synthesize delegate = _delegate; | |
| 100 | |
| 101 - (instancetype)initWithFrame:(CGRect)frame { | |
| 102 self = [super initWithFrame:frame]; | |
| 103 if (self) { | |
| 104 UICollectionViewFlowLayout* layout = | |
| 105 [[UICollectionViewFlowLayout alloc] init]; | |
| 106 layout.scrollDirection = UICollectionViewScrollDirectionHorizontal; | |
| 107 layout.minimumInteritemSpacing = kInternalCellSpacing; | |
| 108 layout.itemSize = CGSizeMake(kInternalCellWidth, kInternalCellHeight); | |
| 109 layout.sectionInset = UIEdgeInsetsMake(0, kInternalLeadingSpacing, 0, 0); | |
| 110 | |
| 111 _collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero | |
| 112 collectionViewLayout:layout]; | |
| 113 [_collectionView registerClass:[ContentSuggestionsFaviconInternalCell class] | |
| 114 forCellWithReuseIdentifier:[ContentSuggestionsFaviconInternalCell | |
| 115 reuseIdentifier]]; | |
| 116 _collectionView.backgroundColor = [UIColor clearColor]; | |
| 117 _collectionView.translatesAutoresizingMaskIntoConstraints = NO; | |
| 118 | |
| 119 _collectionView.delegate = self; | |
| 120 | |
| 121 [self.contentView addSubview:_collectionView]; | |
| 122 AddSameSizeConstraint(_collectionView, self.contentView); | |
| 123 [_collectionView.heightAnchor constraintEqualToConstant:kInternalCellHeight] | |
| 124 .active = YES; | |
| 125 } | |
| 126 return self; | |
| 127 } | |
| 128 | |
| 129 - (void)prepareForReuse { | |
| 130 [super prepareForReuse]; | |
| 131 self.collectionView.dataSource = nil; | |
| 132 self.delegate = nil; | |
| 133 } | |
| 134 | |
| 135 #pragma mark - UICollectionViewDelegate | |
| 136 | |
| 137 - (void)collectionView:(UICollectionView*)collectionView | |
| 138 didSelectItemAtIndexPath:(NSIndexPath*)indexPath { | |
| 139 [self.delegate openFaviconAtIndexPath:indexPath]; | |
| 140 } | |
| 141 | |
| 142 @end | |
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Chromium Code Reviews
Issue 2761753002:
Cleanup ContentSuggestions cells (Closed)
