hover_highlight_view.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd 
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/tray_views.h"
10#include "ash/system/tray/view_click_listener.h"
11#include "grit/ui_resources.h"
12#include "ui/base/resource/resource_bundle.h"
13#include "ui/gfx/canvas.h"
14#include "ui/views/controls/image_view.h"
15#include "ui/views/controls/label.h"
16#include "ui/views/layout/box_layout.h"
17#include "ui/views/layout/fill_layout.h"
18
19namespace {
20
21const int kPopupDetailLabelExtraLeftMargin = 8;
22const int kCheckLabelPadding = 4;
23
24}  // namespace
25
26namespace ash {
27namespace internal {
28
29HoverHighlightView::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  set_notify_enter_exit_on_child(true);
39}
40
41HoverHighlightView::~HoverHighlightView() {
42}
43
44void HoverHighlightView::AddIconAndLabel(const gfx::ImageSkia& image,
45                                         const string16& text,
46                                         gfx::Font::FontStyle style) {
47  SetLayoutManager(new views::BoxLayout(
48      views::BoxLayout::kHorizontal, 0, 3, kTrayPopupPaddingBetweenItems));
49  views::ImageView* image_view =
50      new FixedSizedImageView(kTrayPopupDetailsIconWidth, 0);
51  image_view->SetImage(image);
52  AddChildView(image_view);
53
54  text_label_ = new views::Label(text);
55  text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
56  text_label_->SetFont(text_label_->font().DeriveFont(0, style));
57  if (text_default_color_)
58    text_label_->SetEnabledColor(text_default_color_);
59  AddChildView(text_label_);
60
61  SetAccessibleName(text);
62}
63
64views::Label* HoverHighlightView::AddLabel(const string16& text,
65                                           gfx::Font::FontStyle style) {
66  SetLayoutManager(new views::FillLayout());
67  text_label_ = new views::Label(text);
68  int margin = kTrayPopupPaddingHorizontal + kPopupDetailLabelExtraLeftMargin;
69  int left_margin = 0;
70  int right_margin = 0;
71  if (base::i18n::IsRTL())
72    right_margin = margin;
73  else
74    left_margin = margin;
75  text_label_->set_border(
76      views::Border::CreateEmptyBorder(5, left_margin, 5, right_margin));
77  text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
78  text_label_->SetFont(text_label_->font().DeriveFont(0, style));
79  // Do not set alpha value in disable color. It will have issue with elide
80  // blending filter in disabled state for rendering label text color.
81  text_label_->SetDisabledColor(SkColorSetARGB(255, 127, 127, 127));
82  if (text_default_color_)
83    text_label_->SetEnabledColor(text_default_color_);
84  AddChildView(text_label_);
85
86  SetAccessibleName(text);
87  return text_label_;
88}
89
90views::Label* HoverHighlightView::AddCheckableLabel(const string16& text,
91                                                    gfx::Font::FontStyle style,
92                                                    bool checked) {
93  if (checked) {
94    ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
95    const gfx::ImageSkia* check =
96        rb.GetImageNamed(IDR_MENU_CHECK).ToImageSkia();
97    int margin = kTrayPopupPaddingHorizontal + kPopupDetailLabelExtraLeftMargin
98        - kCheckLabelPadding;
99    SetLayoutManager(new views::BoxLayout(
100        views::BoxLayout::kHorizontal, 0, 3, kCheckLabelPadding));
101    views::ImageView* image_view = new FixedSizedImageView(margin, 0);
102    image_view->SetImage(check);
103    image_view->SetHorizontalAlignment(views::ImageView::TRAILING);
104    AddChildView(image_view);
105
106    text_label_ = new views::Label(text);
107    text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
108    text_label_->SetFont(text_label_->font().DeriveFont(0, style));
109    text_label_->SetDisabledColor(SkColorSetARGB(127, 0, 0, 0));
110    if (text_default_color_)
111      text_label_->SetEnabledColor(text_default_color_);
112    AddChildView(text_label_);
113
114    SetAccessibleName(text);
115    return text_label_;
116  }
117  return AddLabel(text, style);
118}
119
120void HoverHighlightView::SetExpandable(bool expandable) {
121  if (expandable != expandable_) {
122    expandable_ = expandable;
123    InvalidateLayout();
124  }
125}
126
127bool HoverHighlightView::PerformAction(const ui::Event& event) {
128  if (!listener_)
129    return false;
130  listener_->OnViewClicked(this);
131  return true;
132}
133
134gfx::Size HoverHighlightView::GetPreferredSize() {
135  gfx::Size size = ActionableView::GetPreferredSize();
136  if (!expandable_ || size.height() < kTrayPopupItemHeight)
137    size.set_height(kTrayPopupItemHeight);
138  return size;
139}
140
141void HoverHighlightView::OnMouseEntered(const ui::MouseEvent& event) {
142  hover_ = true;
143  if (text_highlight_color_ && text_label_)
144    text_label_->SetEnabledColor(text_highlight_color_);
145  SchedulePaint();
146}
147
148void HoverHighlightView::OnMouseExited(const ui::MouseEvent& event) {
149  hover_ = false;
150  if (text_default_color_ && text_label_)
151    text_label_->SetEnabledColor(text_default_color_);
152  SchedulePaint();
153}
154
155void HoverHighlightView::OnEnabledChanged() {
156  for (int i = 0; i < child_count(); ++i)
157    child_at(i)->SetEnabled(enabled());
158}
159
160void HoverHighlightView::OnPaintBackground(gfx::Canvas* canvas) {
161  canvas->DrawColor(hover_ ? highlight_color_ : default_color_);
162}
163
164void HoverHighlightView::OnFocus() {
165  ScrollRectToVisible(gfx::Rect(gfx::Point(), size()));
166  ActionableView::OnFocus();
167}
168
169}  // namespace internal
170}  // namespace ash
171