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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/clean/chrome/browser/ui/tab_grid/tab_grid_toolbar.h" | |
6 | |
7 #import "ios/clean/chrome/browser/ui/tab_grid/ui_stack_view+cr_tab_grid.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 kToolbarHeight = 44.0f; | |
15 } | |
16 | |
17 @implementation TabGridToolbar | |
18 | |
19 - (instancetype)init { | |
20 if (self = [super init]) { | |
21 UIVisualEffect* blurEffect = | |
22 [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark]; | |
23 UIVisualEffectView* toolbarView = | |
24 [[UIVisualEffectView alloc] initWithEffect:blurEffect]; | |
25 toolbarView.autoresizingMask = | |
26 UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; | |
27 [self addSubview:toolbarView]; | |
28 | |
29 UIStackView* toolbarContent = [UIStackView cr_tabGridToolbarStackView]; | |
30 [toolbarView.contentView addSubview:toolbarContent]; | |
31 | |
32 // Sets the stackview to a fixed height, anchored to the bottom of the | |
33 // blur view. | |
34 toolbarContent.translatesAutoresizingMaskIntoConstraints = NO; | |
35 [NSLayoutConstraint activateConstraints:@[ | |
36 [toolbarContent.heightAnchor constraintEqualToConstant:kToolbarHeight], | |
marq (ping after 24h)
2017/03/02 06:04:54
Is this constraint necessary, or can we just have
edchin
2017/03/02 07:12:44
The VC which uses TabGridToolbar wants to visually
| |
37 [toolbarContent.leadingAnchor | |
38 constraintEqualToAnchor:toolbarView.contentView.leadingAnchor], | |
39 [toolbarContent.trailingAnchor | |
40 constraintEqualToAnchor:toolbarView.contentView.trailingAnchor], | |
41 [toolbarContent.bottomAnchor | |
42 constraintEqualToAnchor:toolbarView.contentView.bottomAnchor] | |
43 ]]; | |
44 } | |
45 return self; | |
46 } | |
47 | |
48 #pragma mark - UIView | |
49 | |
50 // Returns an intrinsic height so that explicit height constraints are | |
51 // not necessary. Status bar conditional logic can be set using this | |
52 // intrinsic size. | |
53 - (CGSize)intrinsicContentSize { | |
54 return CGSizeMake(UIViewNoIntrinsicMetric, kToolbarHeight); | |
55 } | |
56 | |
57 @end | |
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