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 "ui/accessibility/ax_view_state.h"
11 #include "ui/base/resource/resource_bundle.h"
12 #include "ui/gfx/canvas.h"
13 #include "ui/gfx/font_list.h"
14 #include "ui/resources/grit/ui_resources.h"
15 #include "ui/views/border.h"
16 #include "ui/views/controls/image_view.h"
17 #include "ui/views/controls/label.h"
18 #include "ui/views/layout/box_layout.h"
19 #include "ui/views/layout/fill_layout.h"
20
21 namespace {
22
23 const int kCheckLabelPadding = 4;
24
25 } // namespace
26
27 namespace ash {
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_->SetFontList(text_label_->font_list().DeriveWithStyle(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::HorizontalAlignment alignment,gfx::Font::FontStyle style)66 views::Label* HoverHighlightView::AddLabel(const base::string16& text,
67 gfx::HorizontalAlignment alignment,
68 gfx::Font::FontStyle style) {
69 SetLayoutManager(new views::FillLayout());
70 text_label_ = new views::Label(text);
71 int left_margin = kTrayPopupPaddingHorizontal;
72 int right_margin = kTrayPopupPaddingHorizontal;
73 if (alignment != gfx::ALIGN_CENTER) {
74 if (base::i18n::IsRTL())
75 right_margin += kTrayPopupDetailsLabelExtraLeftMargin;
76 else
77 left_margin += kTrayPopupDetailsLabelExtraLeftMargin;
78 }
79 text_label_->SetBorder(
80 views::Border::CreateEmptyBorder(5, left_margin, 5, right_margin));
81 text_label_->SetHorizontalAlignment(alignment);
82 text_label_->SetFontList(text_label_->font_list().DeriveWithStyle(style));
83 // Do not set alpha value in disable color. It will have issue with elide
84 // blending filter in disabled state for rendering label text color.
85 text_label_->SetDisabledColor(SkColorSetARGB(255, 127, 127, 127));
86 if (text_default_color_)
87 text_label_->SetEnabledColor(text_default_color_);
88 AddChildView(text_label_);
89
90 SetAccessibleName(text);
91 return text_label_;
92 }
93
AddCheckableLabel(const base::string16 & text,gfx::Font::FontStyle style,bool checked)94 views::Label* HoverHighlightView::AddCheckableLabel(const base::string16& text,
95 gfx::Font::FontStyle style,
96 bool checked) {
97 checkable_ = true;
98 checked_ = checked;
99 if (checked) {
100 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
101 const gfx::ImageSkia* check =
102 rb.GetImageNamed(IDR_MENU_CHECK).ToImageSkia();
103 int margin = kTrayPopupPaddingHorizontal +
104 kTrayPopupDetailsLabelExtraLeftMargin - kCheckLabelPadding;
105 SetLayoutManager(new views::BoxLayout(
106 views::BoxLayout::kHorizontal, 0, 3, kCheckLabelPadding));
107 views::ImageView* image_view = new FixedSizedImageView(margin, 0);
108 image_view->SetImage(check);
109 image_view->SetHorizontalAlignment(views::ImageView::TRAILING);
110 AddChildView(image_view);
111
112 text_label_ = new views::Label(text);
113 text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
114 text_label_->SetFontList(text_label_->font_list().DeriveWithStyle(style));
115 text_label_->SetDisabledColor(SkColorSetARGB(127, 0, 0, 0));
116 if (text_default_color_)
117 text_label_->SetEnabledColor(text_default_color_);
118 AddChildView(text_label_);
119
120 SetAccessibleName(text);
121 return text_label_;
122 }
123 return AddLabel(text, gfx::ALIGN_LEFT, style);
124 }
125
SetExpandable(bool expandable)126 void HoverHighlightView::SetExpandable(bool expandable) {
127 if (expandable != expandable_) {
128 expandable_ = expandable;
129 InvalidateLayout();
130 }
131 }
132
PerformAction(const ui::Event & event)133 bool HoverHighlightView::PerformAction(const ui::Event& event) {
134 if (!listener_)
135 return false;
136 listener_->OnViewClicked(this);
137 return true;
138 }
139
GetAccessibleState(ui::AXViewState * state)140 void HoverHighlightView::GetAccessibleState(ui::AXViewState* state) {
141 ActionableView::GetAccessibleState(state);
142
143 if (checkable_) {
144 state->role = ui::AX_ROLE_CHECK_BOX;
145 if (checked_)
146 state->AddStateFlag(ui::AX_STATE_CHECKED);
147 }
148 }
149
GetPreferredSize() const150 gfx::Size HoverHighlightView::GetPreferredSize() const {
151 gfx::Size size = ActionableView::GetPreferredSize();
152 if (!expandable_ || size.height() < kTrayPopupItemHeight)
153 size.set_height(kTrayPopupItemHeight);
154 return size;
155 }
156
GetHeightForWidth(int width) const157 int HoverHighlightView::GetHeightForWidth(int width) const {
158 return GetPreferredSize().height();
159 }
160
OnMouseEntered(const ui::MouseEvent & event)161 void HoverHighlightView::OnMouseEntered(const ui::MouseEvent& event) {
162 hover_ = true;
163 if (text_highlight_color_ && text_label_)
164 text_label_->SetEnabledColor(text_highlight_color_);
165 SchedulePaint();
166 }
167
OnMouseExited(const ui::MouseEvent & event)168 void HoverHighlightView::OnMouseExited(const ui::MouseEvent& event) {
169 hover_ = false;
170 if (text_default_color_ && text_label_)
171 text_label_->SetEnabledColor(text_default_color_);
172 SchedulePaint();
173 }
174
OnEnabledChanged()175 void HoverHighlightView::OnEnabledChanged() {
176 for (int i = 0; i < child_count(); ++i)
177 child_at(i)->SetEnabled(enabled());
178 }
179
OnPaintBackground(gfx::Canvas * canvas)180 void HoverHighlightView::OnPaintBackground(gfx::Canvas* canvas) {
181 canvas->DrawColor(hover_ ? highlight_color_ : default_color_);
182 }
183
OnFocus()184 void HoverHighlightView::OnFocus() {
185 ScrollRectToVisible(gfx::Rect(gfx::Point(), size()));
186 ActionableView::OnFocus();
187 }
188
189 } // namespace ash
190