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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. | |
4 | |
5 #include "ash/common/system/overview/overview_button_tray.h" | |
6 | |
7 #include "ash/common/session/session_state_delegate.h" | |
8 #include "ash/common/shelf/shelf_constants.h" | |
9 #include "ash/common/system/tray/system_tray_delegate.h" | |
10 #include "ash/common/system/tray/tray_constants.h" | |
11 #include "ash/common/wm/maximize_mode/maximize_mode_controller.h" | |
12 #include "ash/common/wm/overview/window_selector_controller.h" | |
13 #include "ash/common/wm_shell.h" | |
14 #include "ash/resources/vector_icons/vector_icons.h" | |
15 #include "ash/strings/grit/ash_strings.h" | |
16 #include "ui/base/l10n/l10n_util.h" | |
17 #include "ui/gfx/paint_vector_icon.h" | |
18 #include "ui/views/border.h" | |
19 #include "ui/views/controls/image_view.h" | |
20 | |
21 namespace ash { | |
22 | |
23 OverviewButtonTray::OverviewButtonTray(WmShelf* wm_shelf) | |
24 : TrayBackgroundView(wm_shelf), icon_(new views::ImageView()) { | |
25 SetInkDropMode(InkDropMode::ON); | |
26 SetContentsBackground(false); | |
27 | |
28 icon_->SetImage(CreateVectorIcon(kShelfOverviewIcon, kShelfIconColor)); | |
29 SetIconBorderForShelfAlignment(); | |
30 tray_container()->AddChildView(icon_); | |
31 | |
32 // Since OverviewButtonTray is located on the rightmost position of a | |
33 // horizontal shelf, no separator is required. | |
34 set_separator_visibility(false); | |
35 | |
36 WmShell::Get()->AddShellObserver(this); | |
37 WmShell::Get()->GetSessionStateDelegate()->AddSessionStateObserver(this); | |
38 } | |
39 | |
40 OverviewButtonTray::~OverviewButtonTray() { | |
41 WmShell::Get()->RemoveShellObserver(this); | |
42 WmShell::Get()->GetSessionStateDelegate()->RemoveSessionStateObserver(this); | |
43 } | |
44 | |
45 void OverviewButtonTray::UpdateAfterLoginStatusChange(LoginStatus status) { | |
46 UpdateIconVisibility(); | |
47 } | |
48 | |
49 bool OverviewButtonTray::PerformAction(const ui::Event& event) { | |
50 WindowSelectorController* controller = | |
51 WmShell::Get()->window_selector_controller(); | |
52 // Toggling overview mode will fail if there is no window to show. | |
53 bool performed = controller->ToggleOverview(); | |
54 WmShell::Get()->RecordUserMetricsAction(UMA_TRAY_OVERVIEW); | |
55 return performed; | |
56 } | |
57 | |
58 void OverviewButtonTray::SessionStateChanged( | |
59 session_manager::SessionState state) { | |
60 UpdateIconVisibility(); | |
61 } | |
62 | |
63 void OverviewButtonTray::OnMaximizeModeStarted() { | |
64 UpdateIconVisibility(); | |
65 } | |
66 | |
67 void OverviewButtonTray::OnMaximizeModeEnded() { | |
68 UpdateIconVisibility(); | |
69 } | |
70 | |
71 void OverviewButtonTray::OnOverviewModeStarting() { | |
72 SetIsActive(true); | |
73 } | |
74 | |
75 void OverviewButtonTray::OnOverviewModeEnded() { | |
76 SetIsActive(false); | |
77 } | |
78 | |
79 void OverviewButtonTray::ClickedOutsideBubble() {} | |
80 | |
81 base::string16 OverviewButtonTray::GetAccessibleNameForTray() { | |
82 return l10n_util::GetStringUTF16(IDS_ASH_OVERVIEW_BUTTON_ACCESSIBLE_NAME); | |
83 } | |
84 | |
85 void OverviewButtonTray::HideBubbleWithView( | |
86 const views::TrayBubbleView* bubble_view) { | |
87 // This class has no bubbles to hide. | |
88 } | |
89 | |
90 void OverviewButtonTray::SetShelfAlignment(ShelfAlignment alignment) { | |
91 if (alignment == shelf_alignment()) | |
92 return; | |
93 | |
94 TrayBackgroundView::SetShelfAlignment(alignment); | |
95 SetIconBorderForShelfAlignment(); | |
96 } | |
97 | |
98 void OverviewButtonTray::SetIconBorderForShelfAlignment() { | |
99 // Pad button size to align with other controls in the system tray. | |
100 const gfx::ImageSkia& image = icon_->GetImage(); | |
101 const int vertical_padding = (kTrayItemSize - image.height()) / 2; | |
102 const int horizontal_padding = (kTrayItemSize - image.width()) / 2; | |
103 icon_->SetBorder(views::CreateEmptyBorder( | |
104 gfx::Insets(vertical_padding, horizontal_padding))); | |
105 } | |
106 | |
107 void OverviewButtonTray::UpdateIconVisibility() { | |
108 // The visibility of the OverviewButtonTray has diverged from | |
109 // WindowSelectorController::CanSelect. The visibility of the button should | |
110 // not change during transient times in which CanSelect is false. Such as when | |
111 // a modal dialog is present. | |
112 WmShell* shell = WmShell::Get(); | |
113 SessionStateDelegate* session_state_delegate = | |
114 shell->GetSessionStateDelegate(); | |
115 | |
116 SetVisible( | |
117 shell->maximize_mode_controller()->IsMaximizeModeWindowManagerEnabled() && | |
118 session_state_delegate->IsActiveUserSessionStarted() && | |
119 !session_state_delegate->IsScreenLocked() && | |
120 session_state_delegate->GetSessionState() == | |
121 session_manager::SessionState::ACTIVE && | |
122 shell->system_tray_delegate()->GetUserLoginStatus() != | |
123 LoginStatus::KIOSK_APP && | |
124 shell->system_tray_delegate()->GetUserLoginStatus() != | |
125 LoginStatus::ARC_KIOSK_APP); | |
126 } | |
127 | |
128 } // namespace ash | |
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