Cleanup ContentSuggestions cells

ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm

Index: ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm
diff --git a/ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm b/ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm
deleted file mode 100644
index 97fbcf2af42f69943194c5bcaa615b9b19343289..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm
+++ /dev/null
@@ -1,216 +0,0 @@
-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#import "ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.h"
-
-#include "base/time/time.h"
-#import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
-#import "ios/chrome/browser/ui/uikit_ui_util.h"
-#import "ios/chrome/browser/ui/util/i18n_string.h"
-#import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
-#include "url/gurl.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace {
-const CGFloat kImageSize = 72;
-// When updating this, make sure to update |layoutSubviews|.
-const CGFloat kStandardSpacing = 8;
-}
-
-@interface ContentSuggestionsArticleItem ()
-
-@property(nonatomic, copy) NSString* subtitle;
-// Used to check if the image has already been fetched. There is no way to
-// discriminate between failed image download and nonexitent image. The article
-// tries to download the image only once.
-@property(nonatomic, assign) BOOL imageFetched;
-
-@end
-
-#pragma mark - ContentSuggestionsArticleItem
-
-@implementation ContentSuggestionsArticleItem
-
-@synthesize title = _title;
-@synthesize subtitle = _subtitle;
-@synthesize image = _image;
-@synthesize articleURL = _articleURL;
-@synthesize publisher = _publisher;
-@synthesize publishDate = _publishDate;
-@synthesize suggestionIdentifier = _suggestionIdentifier;
-@synthesize delegate = _delegate;
-@synthesize imageFetched = _imageFetched;
-
-- (instancetype)initWithType:(NSInteger)type
-                       title:(NSString*)title
-                    subtitle:(NSString*)subtitle
-                    delegate:(id<ContentSuggestionsArticleItemDelegate>)delegate
-                         url:(const GURL&)url {
-  self = [super initWithType:type];
-  if (self) {
-    self.cellClass = [ContentSuggestionsArticleCell class];
-    _title = [title copy];
-    _subtitle = [subtitle copy];
-    _articleURL = url;
-    _delegate = delegate;
-    _image = [self emptyImageBackground];
-  }
-  return self;
-}
-
-- (void)configureCell:(ContentSuggestionsArticleCell*)cell {
-  [super configureCell:cell];
-  if (!self.imageFetched) {
-    self.imageFetched = YES;
-    // Fetch the image. During the fetch the cell's image should still be set.
-    [self.delegate loadImageForArticleItem:self];
-  }
-  cell.titleLabel.text = self.title;
-  cell.subtitleLabel.text = self.subtitle;
-  cell.imageView.image = self.image;
-  [cell setPublisherName:self.publisher date:self.publishDate];
-}
-
-#pragma mark - Private
-
-- (UIImage*)emptyImageBackground {
-  // TODO(crbug.com/698171): Remove this function once we have real background
-  // image.
-  UIColor* color = [UIColor lightGrayColor];
-  CGRect rect = CGRectMake(0, 0, 1, 1);
-  UIGraphicsBeginImageContext(rect.size);
-  [color setFill];
-  UIRectFill(rect);
-  UIImage* image = UIGraphicsGetImageFromCurrentImageContext();
-  UIGraphicsEndImageContext();
-  return image;
-}
-
-@end
-
-#pragma mark - ContentSuggestionsArticleCell
-
-@interface ContentSuggestionsArticleCell ()
-
-@property(nonatomic, strong) UILabel* publisherLabel;
-
-// Applies the constraints on the elements. Called in the init.
-- (void)applyConstraints;
-
-@end
-
-@implementation ContentSuggestionsArticleCell
-
-@synthesize titleLabel = _titleLabel;
-@synthesize subtitleLabel = _subtitleLabel;
-@synthesize imageView = _imageView;
-@synthesize publisherLabel = _publisherLabel;
-
-- (instancetype)initWithFrame:(CGRect)frame {
-  self = [super initWithFrame:frame];
-  if (self) {
-    _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
-    _subtitleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
-    _imageView = [[UIImageView alloc] initWithFrame:CGRectZero];
-    _publisherLabel = [[UILabel alloc] initWithFrame:CGRectZero];
-
-    _titleLabel.numberOfLines = 2;
-    _subtitleLabel.numberOfLines = 0;
-    [_subtitleLabel setContentHuggingPriority:UILayoutPriorityDefaultHigh
-                                      forAxis:UILayoutConstraintAxisVertical];
-    [_titleLabel setContentHuggingPriority:UILayoutPriorityDefaultHigh
-                                   forAxis:UILayoutConstraintAxisVertical];
-    _imageView.contentMode = UIViewContentModeScaleAspectFill;
-    _imageView.clipsToBounds = YES;
-
-    _imageView.translatesAutoresizingMaskIntoConstraints = NO;
-    _titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
-    _subtitleLabel.translatesAutoresizingMaskIntoConstraints = NO;
-    _publisherLabel.translatesAutoresizingMaskIntoConstraints = NO;
-
-    [self.contentView addSubview:_imageView];
-    [self.contentView addSubview:_titleLabel];
-    [self.contentView addSubview:_subtitleLabel];
-    [self.contentView addSubview:_publisherLabel];
-
-    _titleLabel.font = [MDCTypography subheadFont];
-    _subtitleLabel.font = [MDCTypography body1Font];
-    _publisherLabel.font = [MDCTypography captionFont];
-
-    _subtitleLabel.textColor = [[MDCPalette greyPalette] tint700];
-    _publisherLabel.textColor = [[MDCPalette greyPalette] tint700];
-
-    [self applyConstraints];
-  }
-  return self;
-}
-
-- (void)setPublisherName:(NSString*)publisherName date:(base::Time)publishDate {
-  NSDate* date = [NSDate dateWithTimeIntervalSince1970:publishDate.ToDoubleT()];
-  NSString* dateString =
-      [NSDateFormatter localizedStringFromDate:date
-                                     dateStyle:NSDateFormatterMediumStyle
-                                     timeStyle:NSDateFormatterNoStyle];
-
-  self.publisherLabel.text = AdjustStringForLocaleDirection(
-      [NSString stringWithFormat:@"%@ - %@.", publisherName, dateString]);
-}
-
-#pragma mark - UIView
-
-// Implements -layoutSubviews as per instructions in documentation for
-// +[MDCCollectionViewCell cr_preferredHeightForWidth:forItem:].
-- (void)layoutSubviews {
-  [super layoutSubviews];
-
-  // Adjust the text label preferredMaxLayoutWidth when the parent's width
-  // changes, for instance on screen rotation.
-  CGFloat parentWidth = CGRectGetWidth(self.contentView.bounds);
-
-  self.titleLabel.preferredMaxLayoutWidth =
-      parentWidth - kImageSize - 3 * kStandardSpacing;
-  self.subtitleLabel.preferredMaxLayoutWidth =
-      parentWidth - kImageSize - 3 * kStandardSpacing;
-
-  // Re-layout with the new preferred width to allow the label to adjust its
-  // height.
-  [super layoutSubviews];
-}
-
-#pragma mark - Private
-
-- (void)applyConstraints {
-  [NSLayoutConstraint activateConstraints:@[
-    [_imageView.widthAnchor constraintEqualToConstant:kImageSize],
-    [_imageView.heightAnchor constraintEqualToAnchor:_imageView.widthAnchor],
-    [_publisherLabel.topAnchor
-        constraintGreaterThanOrEqualToAnchor:_imageView.bottomAnchor
-                                    constant:kStandardSpacing],
-    [_publisherLabel.topAnchor
-        constraintGreaterThanOrEqualToAnchor:_subtitleLabel.bottomAnchor
-                                    constant:kStandardSpacing],
-  ]];
-
-  ApplyVisualConstraintsWithMetrics(
-      @[
-        @"H:|-(space)-[title]-(space)-[image]-(space)-|",
-        @"H:|-(space)-[text]-(space)-[image]",
-        @"V:|-[title]-[text]",
-        @"V:|-[image]",
-        @"H:|-[publish]-|",
-        @"V:[publish]-|",
-      ],
-      @{
-        @"image" : _imageView,
-        @"title" : _titleLabel,
-        @"text" : _subtitleLabel,
-        @"publish" : _publisherLabel,
-      },
-      @{ @"space" : @(kStandardSpacing) });
-}
-
-@end