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Side by Side Diff: ash/common/system/tray/size_range_layout.cc

Issue 2732813002: chromeos: Move files in //ash/common to //ash, part 1 (Closed)
Patch Set: rebase Created 3 years, 9 months ago
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1 // Copyright 2016 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 #include <limits>
6
7 #include "ash/common/system/tray/size_range_layout.h"
8
9 #include "base/logging.h"
10 #include "ui/views/layout/fill_layout.h"
11
12 namespace ash {
13
14 // static
15
16 const int SizeRangeLayout::kAbsoluteMinSize = 0;
17 const int SizeRangeLayout::kAbsoluteMaxSize = std::numeric_limits<int>::max();
18
19 // Non static
20
21 SizeRangeLayout::SizeRangeLayout()
22 : SizeRangeLayout(gfx::Size(kAbsoluteMinSize, kAbsoluteMinSize),
23 gfx::Size(kAbsoluteMaxSize, kAbsoluteMaxSize)) {}
24
25 SizeRangeLayout::SizeRangeLayout(const gfx::Size& min_size,
26 const gfx::Size& max_size)
27 : layout_manager_(new views::FillLayout()),
28 min_size_(gfx::Size(kAbsoluteMinSize, kAbsoluteMinSize)),
29 max_size_(gfx::Size(kAbsoluteMaxSize, kAbsoluteMaxSize)) {
30 SetMinSize(min_size);
31 SetMaxSize(max_size);
32 }
33
34 SizeRangeLayout::~SizeRangeLayout() {}
35
36 void SizeRangeLayout::SetSize(const gfx::Size& size) {
37 SetMinSize(size);
38 SetMaxSize(size);
39 }
40
41 void SizeRangeLayout::SetMinSize(const gfx::Size& size) {
42 min_size_ = size;
43 min_size_.SetToMax(gfx::Size());
44 max_size_.SetToMax(min_size_);
45 }
46
47 void SizeRangeLayout::SetMaxSize(const gfx::Size& size) {
48 max_size_ = size;
49 max_size_.SetToMax(gfx::Size());
50 min_size_.SetToMin(max_size_);
51 }
52
53 void SizeRangeLayout::SetLayoutManager(
54 std::unique_ptr<LayoutManager> layout_manager) {
55 DCHECK(layout_manager_);
56 layout_manager_ = std::move(layout_manager);
57 layout_manager_->Installed(host_);
58 }
59
60 void SizeRangeLayout::Installed(views::View* host) {
61 DCHECK(!host_);
62 host_ = host;
63 layout_manager_->Installed(host);
64 }
65
66 void SizeRangeLayout::Layout(views::View* host) {
67 layout_manager_->Layout(host);
68 }
69
70 gfx::Size SizeRangeLayout::GetPreferredSize(const views::View* host) const {
71 gfx::Size preferred_size = layout_manager_->GetPreferredSize(host);
72 ClampSizeToRange(&preferred_size);
73 return preferred_size;
74 }
75
76 int SizeRangeLayout::GetPreferredHeightForWidth(const views::View* host,
77 int width) const {
78 const int height = layout_manager_->GetPreferredHeightForWidth(host, width);
79 gfx::Size size(0, height);
80 ClampSizeToRange(&size);
81 return size.height();
82 }
83
84 void SizeRangeLayout::ViewAdded(views::View* host, views::View* view) {
85 layout_manager_->ViewAdded(host, view);
86 }
87
88 void SizeRangeLayout::ViewRemoved(views::View* host, views::View* view) {
89 layout_manager_->ViewRemoved(host, view);
90 }
91
92 void SizeRangeLayout::ClampSizeToRange(gfx::Size* size) const {
93 size->SetToMax(min_size_);
94 size->SetToMin(max_size_);
95 }
96
97 } // namespace ash
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