1 // Copyright 2013 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 "ui/message_center/views/notification_button.h"
6
7 #include "ui/gfx/canvas.h"
8 #include "ui/message_center/message_center_style.h"
9 #include "ui/message_center/views/constants.h"
10 #include "ui/views/background.h"
11 #include "ui/views/border.h"
12 #include "ui/views/controls/image_view.h"
13 #include "ui/views/controls/label.h"
14 #include "ui/views/layout/box_layout.h"
15 #include "ui/views/painter.h"
16
17 namespace message_center {
18
NotificationButton(views::ButtonListener * listener)19 NotificationButton::NotificationButton(views::ButtonListener* listener)
20 : views::CustomButton(listener),
21 icon_(NULL),
22 title_(NULL),
23 focus_painter_(views::Painter::CreateSolidFocusPainter(
24 message_center::kFocusBorderColor,
25 gfx::Insets(1, 2, 2, 2))) {
26 SetFocusable(true);
27 set_request_focus_on_press(false);
28 set_notify_enter_exit_on_child(true);
29 SetLayoutManager(
30 new views::BoxLayout(views::BoxLayout::kHorizontal,
31 message_center::kButtonHorizontalPadding,
32 kButtonVecticalPadding,
33 message_center::kButtonIconToTitlePadding));
34 }
35
~NotificationButton()36 NotificationButton::~NotificationButton() {
37 }
38
SetIcon(const gfx::ImageSkia & image)39 void NotificationButton::SetIcon(const gfx::ImageSkia& image) {
40 if (icon_ != NULL)
41 delete icon_; // This removes the icon from this view's children.
42 if (image.isNull()) {
43 icon_ = NULL;
44 } else {
45 icon_ = new views::ImageView();
46 icon_->SetImageSize(gfx::Size(message_center::kNotificationButtonIconSize,
47 message_center::kNotificationButtonIconSize));
48 icon_->SetImage(image);
49 icon_->SetHorizontalAlignment(views::ImageView::LEADING);
50 icon_->SetVerticalAlignment(views::ImageView::LEADING);
51 icon_->SetBorder(views::Border::CreateEmptyBorder(
52 message_center::kButtonIconTopPadding, 0, 0, 0));
53 AddChildViewAt(icon_, 0);
54 }
55 }
56
SetTitle(const base::string16 & title)57 void NotificationButton::SetTitle(const base::string16& title) {
58 if (title_ != NULL)
59 delete title_; // This removes the title from this view's children.
60 if (title.empty()) {
61 title_ = NULL;
62 } else {
63 title_ = new views::Label(title);
64 title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
65 title_->SetEnabledColor(message_center::kRegularTextColor);
66 title_->SetBackgroundColor(kRegularTextBackgroundColor);
67 title_->SetBorder(
68 views::Border::CreateEmptyBorder(kButtonTitleTopPadding, 0, 0, 0));
69 AddChildView(title_);
70 }
71 SetAccessibleName(title);
72 }
73
GetPreferredSize() const74 gfx::Size NotificationButton::GetPreferredSize() const {
75 return gfx::Size(message_center::kNotificationWidth,
76 message_center::kButtonHeight);
77 }
78
GetHeightForWidth(int width) const79 int NotificationButton::GetHeightForWidth(int width) const {
80 return message_center::kButtonHeight;
81 }
82
OnPaint(gfx::Canvas * canvas)83 void NotificationButton::OnPaint(gfx::Canvas* canvas) {
84 CustomButton::OnPaint(canvas);
85 views::Painter::PaintFocusPainter(this, canvas, focus_painter_.get());
86 }
87
OnFocus()88 void NotificationButton::OnFocus() {
89 views::CustomButton::OnFocus();
90 ScrollRectToVisible(GetLocalBounds());
91 // We render differently when focused.
92 SchedulePaint();
93 }
94
OnBlur()95 void NotificationButton::OnBlur() {
96 views::CustomButton::OnBlur();
97 // We render differently when focused.
98 SchedulePaint();
99 }
100
ViewHierarchyChanged(const ViewHierarchyChangedDetails & details)101 void NotificationButton::ViewHierarchyChanged(
102 const ViewHierarchyChangedDetails& details) {
103 // We disable view hierarchy change detection in the parent
104 // because it resets the hoverstate, which we do not want
105 // when we update the view to contain a new label or image.
106 views::View::ViewHierarchyChanged(details);
107 }
108
StateChanged()109 void NotificationButton::StateChanged() {
110 if (state() == STATE_HOVERED || state() == STATE_PRESSED) {
111 set_background(views::Background::CreateSolidBackground(
112 message_center::kHoveredButtonBackgroundColor));
113 } else {
114 set_background(NULL);
115 }
116 }
117
118 } // namespace message_center
119