1 // Copyright 2012 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 "ash/system/tray/hover_highlight_view.h"
6
7 #include "ash/system/tray/fixed_sized_image_view.h"
8 #include "ash/system/tray/tray_constants.h"
9 #include "ash/system/tray/view_click_listener.h"
10 #include "grit/ui_resources.h"
11 #include "ui/base/accessibility/accessible_view_state.h"
12 #include "ui/base/resource/resource_bundle.h"
13 #include "ui/gfx/canvas.h"
14 #include "ui/views/border.h"
15 #include "ui/views/controls/image_view.h"
16 #include "ui/views/controls/label.h"
17 #include "ui/views/layout/box_layout.h"
18 #include "ui/views/layout/fill_layout.h"
19
20 namespace {
21
22 const int kCheckLabelPadding = 4;
23
24 } // namespace
25
26 namespace ash {
27 namespace internal {
28
HoverHighlightView(ViewClickListener * listener)29 HoverHighlightView::HoverHighlightView(ViewClickListener* listener)
30 : listener_(listener),
31 text_label_(NULL),
32 highlight_color_(kHoverBackgroundColor),
33 default_color_(0),
34 text_highlight_color_(0),
35 text_default_color_(0),
36 hover_(false),
37 expandable_(false),
38 checkable_(false),
39 checked_(false) {
40 set_notify_enter_exit_on_child(true);
41 }
42
~HoverHighlightView()43 HoverHighlightView::~HoverHighlightView() {
44 }
45
AddIconAndLabel(const gfx::ImageSkia & image,const base::string16 & text,gfx::Font::FontStyle style)46 void HoverHighlightView::AddIconAndLabel(const gfx::ImageSkia& image,
47 const base::string16& text,
48 gfx::Font::FontStyle style) {
49 SetLayoutManager(new views::BoxLayout(
50 views::BoxLayout::kHorizontal, 0, 3, kTrayPopupPaddingBetweenItems));
51 views::ImageView* image_view =
52 new FixedSizedImageView(kTrayPopupDetailsIconWidth, 0);
53 image_view->SetImage(image);
54 AddChildView(image_view);
55
56 text_label_ = new views::Label(text);
57 text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
58 text_label_->SetFont(text_label_->font().DeriveFont(0, style));
59 if (text_default_color_)
60 text_label_->SetEnabledColor(text_default_color_);
61 AddChildView(text_label_);
62
63 SetAccessibleName(text);
64 }
65
AddLabel(const base::string16 & text,gfx::Font::FontStyle style)66 views::Label* HoverHighlightView::AddLabel(const base::string16& text,
67 gfx::Font::FontStyle style) {
68 SetLayoutManager(new views::FillLayout());
69 text_label_ = new views::Label(text);
70 int margin = kTrayPopupPaddingHorizontal +
71 kTrayPopupDetailsLabelExtraLeftMargin;
72 int left_margin = 0;
73 int right_margin = 0;
74 if (base::i18n::IsRTL())
75 right_margin = margin;
76 else
77 left_margin = margin;
78 text_label_->set_border(
79 views::Border::CreateEmptyBorder(5, left_margin, 5, right_margin));
80 text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
81 text_label_->SetFont(text_label_->font().DeriveFont(0, style));
82 // Do not set alpha value in disable color. It will have issue with elide
83 // blending filter in disabled state for rendering label text color.
84 text_label_->SetDisabledColor(SkColorSetARGB(255, 127, 127, 127));
85 if (text_default_color_)
86 text_label_->SetEnabledColor(text_default_color_);
87 AddChildView(text_label_);
88
89 SetAccessibleName(text);
90 return text_label_;
91 }
92
AddCheckableLabel(const base::string16 & text,gfx::Font::FontStyle style,bool checked)93 views::Label* HoverHighlightView::AddCheckableLabel(const base::string16& text,
94 gfx::Font::FontStyle style,
95 bool checked) {
96 checkable_ = true;
97 checked_ = checked;
98 if (checked) {
99 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
100 const gfx::ImageSkia* check =
101 rb.GetImageNamed(IDR_MENU_CHECK).ToImageSkia();
102 int margin = kTrayPopupPaddingHorizontal +
103 kTrayPopupDetailsLabelExtraLeftMargin - kCheckLabelPadding;
104 SetLayoutManager(new views::BoxLayout(
105 views::BoxLayout::kHorizontal, 0, 3, kCheckLabelPadding));
106 views::ImageView* image_view = new FixedSizedImageView(margin, 0);
107 image_view->SetImage(check);
108 image_view->SetHorizontalAlignment(views::ImageView::TRAILING);
109 AddChildView(image_view);
110
111 text_label_ = new views::Label(text);
112 text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
113 text_label_->SetFont(text_label_->font().DeriveFont(0, style));
114 text_label_->SetDisabledColor(SkColorSetARGB(127, 0, 0, 0));
115 if (text_default_color_)
116 text_label_->SetEnabledColor(text_default_color_);
117 AddChildView(text_label_);
118
119 SetAccessibleName(text);
120 return text_label_;
121 }
122 return AddLabel(text, style);
123 }
124
SetExpandable(bool expandable)125 void HoverHighlightView::SetExpandable(bool expandable) {
126 if (expandable != expandable_) {
127 expandable_ = expandable;
128 InvalidateLayout();
129 }
130 }
131
PerformAction(const ui::Event & event)132 bool HoverHighlightView::PerformAction(const ui::Event& event) {
133 if (!listener_)
134 return false;
135 listener_->OnViewClicked(this);
136 return true;
137 }
138
GetAccessibleState(ui::AccessibleViewState * state)139 void HoverHighlightView::GetAccessibleState(ui::AccessibleViewState* state) {
140 ActionableView::GetAccessibleState(state);
141
142 if (checkable_) {
143 state->role = ui::AccessibilityTypes::ROLE_CHECKBUTTON;
144 state->state = checked_ ? ui::AccessibilityTypes::STATE_CHECKED : 0;
145 }
146 }
147
GetPreferredSize()148 gfx::Size HoverHighlightView::GetPreferredSize() {
149 gfx::Size size = ActionableView::GetPreferredSize();
150 if (!expandable_ || size.height() < kTrayPopupItemHeight)
151 size.set_height(kTrayPopupItemHeight);
152 return size;
153 }
154
GetHeightForWidth(int width)155 int HoverHighlightView::GetHeightForWidth(int width) {
156 return GetPreferredSize().height();
157 }
158
OnMouseEntered(const ui::MouseEvent & event)159 void HoverHighlightView::OnMouseEntered(const ui::MouseEvent& event) {
160 hover_ = true;
161 if (text_highlight_color_ && text_label_)
162 text_label_->SetEnabledColor(text_highlight_color_);
163 SchedulePaint();
164 }
165
OnMouseExited(const ui::MouseEvent & event)166 void HoverHighlightView::OnMouseExited(const ui::MouseEvent& event) {
167 hover_ = false;
168 if (text_default_color_ && text_label_)
169 text_label_->SetEnabledColor(text_default_color_);
170 SchedulePaint();
171 }
172
OnEnabledChanged()173 void HoverHighlightView::OnEnabledChanged() {
174 for (int i = 0; i < child_count(); ++i)
175 child_at(i)->SetEnabled(enabled());
176 }
177
OnPaintBackground(gfx::Canvas * canvas)178 void HoverHighlightView::OnPaintBackground(gfx::Canvas* canvas) {
179 canvas->DrawColor(hover_ ? highlight_color_ : default_color_);
180 }
181
OnFocus()182 void HoverHighlightView::OnFocus() {
183 ScrollRectToVisible(gfx::Rect(gfx::Point(), size()));
184 ActionableView::OnFocus();
185 }
186
187 } // namespace internal
188 } // namespace ash
189