Upstream Chrome on iOS source code [7/11].

ios/chrome/browser/ui/settings/cells/version_item.mm

+// Copyright 2016 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/settings/cells/version_item.h"
+
+#include "ios/chrome/grit/ios_strings.h"
+#import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
+#import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@implementation VersionItem
+
+@synthesize text = _text;
+
+- (instancetype)initWithType:(NSInteger)type {
+  self = [super initWithType:type];
+  if (self) {
+    self.accessibilityIdentifier = @"Version cell";
+    self.cellClass = [VersionCell class];
+  }
+  return self;
+}
+
+#pragma mark CollectionViewItem
+
+- (void)configureCell:(VersionCell*)cell {
+  [super configureCell:cell];
+  cell.textLabel.text = self.text;
+}
+
+@end
+
+@implementation VersionCell
+
+@synthesize textLabel = _textLabel;
+
+- (instancetype)initWithFrame:(CGRect)frame {
+  self = [super initWithFrame:frame];
+  if (self) {
+    self.isAccessibilityElement = YES;
+    self.accessibilityTraits |= UIAccessibilityTraitButton;
+    self.accessibilityHint = l10n_util::GetNSString(IDS_IOS_COPY_VERSION_HINT);
+
+    _textLabel = [[UILabel alloc] init];
+    _textLabel.translatesAutoresizingMaskIntoConstraints = NO;
+    _textLabel.backgroundColor = [UIColor clearColor];
+    _textLabel.textAlignment = NSTextAlignmentCenter;
+    _textLabel.shadowOffset = CGSizeMake(1, 0);
+    _textLabel.shadowColor = [UIColor whiteColor];
+    [self addSubview:_textLabel];
+
+    _textLabel.font =
+        [[MDFRobotoFontLoader sharedInstance] mediumFontOfSize:14];
+    _textLabel.textColor = [[MDCPalette greyPalette] tint900];
+
+    // Set up the constraints.
+    [NSLayoutConstraint activateConstraints:@[
+      [_textLabel.centerXAnchor constraintEqualToAnchor:self.centerXAnchor],
+      [_textLabel.centerYAnchor constraintEqualToAnchor:self.centerYAnchor],
+    ]];
+
+    self.shouldHideSeparator = YES;
+  }
+  return self;
+}
+
+- (NSString*)accessibilityLabel {
+  return self.textLabel.text;
+}
+
+@end