1 // Copyright 2014 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.
5 #include "ash/system/overview/overview_button_tray.h"
7 #include "ash/shelf/shelf_types.h"
9 #include "ash/system/tray/system_tray_delegate.h"
10 #include "ash/system/tray/tray_utils.h"
11 #include "ash/wm/maximize_mode/maximize_mode_controller.h"
12 #include "ash/wm/overview/window_selector_controller.h"
13 #include "grit/ash_resources.h"
14 #include "grit/ash_strings.h"
15 #include "ui/base/l10n/l10n_util.h"
16 #include "ui/base/resource/resource_bundle.h"
17 #include "ui/views/border.h"
18 #include "ui/views/controls/image_view.h"
22 // Predefined padding for the icon used in this tray. These are to be set to the
23 // border of the icon, depending on the current shelf_alignment()
24 const int kHorizontalShelfHorizontalPadding
= 8;
25 const int kHorizontalShelfVerticalPadding
= 4;
26 const int kVerticalShelfHorizontalPadding
= 2;
27 const int kVerticalShelfVerticalPadding
= 5;
33 OverviewButtonTray::OverviewButtonTray(StatusAreaWidget
* status_area_widget
)
34 : TrayBackgroundView(status_area_widget
), icon_(NULL
) {
35 SetContentsBackground();
37 ui::ResourceBundle
& bundle
= ui::ResourceBundle::GetSharedInstance();
38 icon_
= new views::ImageView();
40 bundle
.GetImageNamed(IDR_AURA_UBER_TRAY_OVERVIEW_MODE
).ToImageSkia());
41 SetIconBorderForShelfAlignment();
42 tray_container()->AddChildView(icon_
);
44 Shell::GetInstance()->AddShellObserver(this);
47 OverviewButtonTray::~OverviewButtonTray() {
48 Shell::GetInstance()->RemoveShellObserver(this);
51 void OverviewButtonTray::UpdateAfterLoginStatusChange(
52 user::LoginStatus status
) {
53 UpdateIconVisibility();
56 bool OverviewButtonTray::PerformAction(const ui::Event
& event
) {
57 WindowSelectorController
* controller
=
58 Shell::GetInstance()->window_selector_controller();
59 controller
->ToggleOverview();
60 SetDrawBackgroundAsActive(controller
->IsSelecting());
64 void OverviewButtonTray::OnMaximizeModeStarted() {
65 UpdateIconVisibility();
68 void OverviewButtonTray::OnMaximizeModeEnded() {
69 UpdateIconVisibility();
72 void OverviewButtonTray::OnOverviewModeEnded() {
73 SetDrawBackgroundAsActive(false);
76 bool OverviewButtonTray::ClickedOutsideBubble() {
77 // This class has no bubbles dismiss, but acknowledge that the message was
82 base::string16
OverviewButtonTray::GetAccessibleNameForTray() {
83 return l10n_util::GetStringUTF16(IDS_ASH_OVERVIEW_BUTTON_ACCESSIBLE_NAME
);
86 void OverviewButtonTray::HideBubbleWithView(
87 const views::TrayBubbleView
* bubble_view
) {
88 // This class has no bubbles to hide.
91 void OverviewButtonTray::SetShelfAlignment(ShelfAlignment alignment
) {
92 if (alignment
== shelf_alignment())
95 TrayBackgroundView::SetShelfAlignment(alignment
);
96 SetIconBorderForShelfAlignment();
99 void OverviewButtonTray::SetIconBorderForShelfAlignment() {
100 if (shelf_alignment() == SHELF_ALIGNMENT_BOTTOM
||
101 shelf_alignment() == SHELF_ALIGNMENT_TOP
) {
102 icon_
->SetBorder(views::Border::CreateEmptyBorder(
103 kHorizontalShelfVerticalPadding
,
104 kHorizontalShelfHorizontalPadding
,
105 kHorizontalShelfVerticalPadding
,
106 kHorizontalShelfHorizontalPadding
));
108 icon_
->SetBorder(views::Border::CreateEmptyBorder(
109 kVerticalShelfVerticalPadding
,
110 kVerticalShelfHorizontalPadding
,
111 kVerticalShelfVerticalPadding
,
112 kVerticalShelfHorizontalPadding
));
116 void OverviewButtonTray::UpdateIconVisibility() {
117 SetVisible(Shell::GetInstance()->maximize_mode_controller()->
118 IsMaximizeModeWindowManagerEnabled() &&
119 Shell::GetInstance()->window_selector_controller()->CanSelect());