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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], |
| 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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