1 // Copyright (c) 2011 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 "chrome/browser/chromeos/login/shutdown_button.h"
6
7 #include "base/utf_string_conversions.h"
8 #include "chrome/browser/chromeos/cros/cros_library.h"
9 #include "chrome/browser/chromeos/cros/power_library.h"
10 #include "chrome/browser/chromeos/login/rounded_rect_painter.h"
11 #include "chrome/browser/chromeos/view_ids.h"
12 #include "grit/generated_resources.h"
13 #include "grit/theme_resources.h"
14 #include "ui/base/l10n/l10n_util.h"
15 #include "ui/base/resource/resource_bundle.h"
16 #include "ui/gfx/gtk_util.h"
17 #include "views/background.h"
18
19 namespace {
20
21 // Style parameters for Shutdown button.
22
23 // Bottom/Right padding to locale the shutdown button.
24 const int kBottomPadding = 12;
25 const int kRightPadding = 12;
26
27 // Normal/Hover colors.
28 const SkColor kShutdownButtonColor = 0xFF303845;
29 const SkColor kShutdownHoverColor = 0xFF353E4E;
30
31 // Padding inside button.
32 const int kVerticalPadding = 13;
33 const int kIconTextPadding = 10;
34 const int kHorizontalPadding = 13;
35
36 // Rounded corner radious.
37 const int kCornerRadius = 4;
38
39 class HoverBackground : public views::Background {
40 public:
HoverBackground(views::Background * normal,views::Background * hover)41 HoverBackground(views::Background* normal, views::Background* hover)
42 : normal_(normal), hover_(hover) {
43 }
44
45 // views::Background implementation.
Paint(gfx::Canvas * canvas,views::View * view) const46 virtual void Paint(gfx::Canvas* canvas, views::View* view) const {
47 views::TextButton* button = static_cast<views::TextButton*>(view);
48 if (button->state() == views::CustomButton::BS_HOT) {
49 hover_->Paint(canvas, view);
50 } else {
51 normal_->Paint(canvas, view);
52 }
53 }
54
55 private:
56 views::Background* normal_;
57 views::Background* hover_;
58
59 DISALLOW_COPY_AND_ASSIGN(HoverBackground);
60 };
61
62 } // namespace
63
64 namespace chromeos {
65
ShutdownButton()66 ShutdownButton::ShutdownButton()
67 : ALLOW_THIS_IN_INITIALIZER_LIST(TextButton(this, std::wstring())) {
68 }
69
Init()70 void ShutdownButton::Init() {
71 ResourceBundle& rb = ResourceBundle::GetSharedInstance();
72 SetIcon(*rb.GetBitmapNamed(IDR_SHUTDOWN_ICON));
73 set_icon_text_spacing(kIconTextPadding);
74 SetFocusable(true);
75 SetID(VIEW_ID_SCREEN_LOCKER_SHUTDOWN);
76 // Set label colors.
77 SetEnabledColor(SK_ColorWHITE);
78 SetDisabledColor(SK_ColorWHITE);
79 SetHighlightColor(SK_ColorWHITE);
80 SetHoverColor(SK_ColorWHITE);
81 // Disable throbbing and make border always visible.
82 SetAnimationDuration(0);
83 SetNormalHasBorder(true);
84 // Setup round shapes.
85 set_background(
86 new HoverBackground(
87 CreateRoundedBackground(
88 kCornerRadius, 0, kShutdownButtonColor, 0),
89 CreateRoundedBackground(
90 kCornerRadius, 0, kShutdownHoverColor, 0)));
91 set_border(
92 views::Border::CreateEmptyBorder(kVerticalPadding,
93 kHorizontalPadding,
94 kVerticalPadding,
95 kHorizontalPadding));
96 OnLocaleChanged(); // set text
97 }
98
LayoutIn(views::View * parent)99 void ShutdownButton::LayoutIn(views::View* parent) {
100 // No RTL for now. RTL will be handled in new WebUI based Login/Locker.
101 gfx::Size button_size = GetPreferredSize();
102 SetBounds(
103 parent->width() - button_size.width()- kRightPadding,
104 parent->height() - button_size.height() - kBottomPadding,
105 button_size.width(),
106 button_size.height());
107 }
108
OnLocaleChanged()109 void ShutdownButton::OnLocaleChanged() {
110 SetText(UTF8ToWide(l10n_util::GetStringUTF8(IDS_SHUTDOWN_BUTTON)));
111 if (parent()) {
112 parent()->Layout();
113 parent()->SchedulePaint();
114 }
115 }
116
GetCursorForPoint(ui::EventType event_type,const gfx::Point & p)117 gfx::NativeCursor ShutdownButton::GetCursorForPoint(
118 ui::EventType event_type,
119 const gfx::Point& p) {
120 if (!IsEnabled()) {
121 return NULL;
122 }
123 return gfx::GetCursor(GDK_HAND2);
124 }
125
ButtonPressed(views::Button * sender,const views::Event & event)126 void ShutdownButton::ButtonPressed(views::Button* sender,
127 const views::Event& event) {
128 DCHECK(CrosLibrary::Get()->EnsureLoaded());
129 CrosLibrary::Get()->GetPowerLibrary()->RequestShutdown();
130 }
131
132 } // namespace chromeos
133