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/system/chromeos/virtual_keyboard/virtual_keyboard_tray.h" 6 7 #include "ash/shelf/shelf.h" 8 #include "ash/shelf/shelf_constants.h" 9 #include "ash/shell.h" 10 #include "ash/system/status_area_widget.h" 11 #include "ash/system/tray/system_tray_notifier.h" 12 #include "ash/system/tray/tray_constants.h" 13 #include "ash/system/tray/tray_utils.h" 14 #include "grit/ash_resources.h" 15 #include "grit/ash_strings.h" 16 #include "ui/base/l10n/l10n_util.h" 17 #include "ui/base/resource/resource_bundle.h" 18 #include "ui/events/event.h" 19 #include "ui/gfx/image/image_skia.h" 20 #include "ui/keyboard/keyboard_controller.h" 21 #include "ui/views/controls/button/image_button.h" 22 23 namespace ash { 24 25 VirtualKeyboardTray::VirtualKeyboardTray(StatusAreaWidget* status_area_widget) 26 : TrayBackgroundView(status_area_widget), 27 button_(NULL) { 28 button_ = new views::ImageButton(this); 29 button_->SetImage(views::CustomButton::STATE_NORMAL, 30 ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed( 31 IDR_AURA_UBER_TRAY_VIRTUAL_KEYBOARD)); 32 button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER, 33 views::ImageButton::ALIGN_MIDDLE); 34 35 tray_container()->AddChildView(button_); 36 SetContentsBackground(); 37 // The Shell may not exist in some unit tests. 38 if (Shell::HasInstance()) { 39 Shell::GetInstance()->system_tray_notifier()-> 40 AddAccessibilityObserver(this); 41 } 42 } 43 44 VirtualKeyboardTray::~VirtualKeyboardTray() { 45 // The Shell may not exist in some unit tests. 46 if (Shell::HasInstance()) { 47 Shell::GetInstance()->system_tray_notifier()-> 48 RemoveAccessibilityObserver(this); 49 } 50 } 51 52 void VirtualKeyboardTray::SetShelfAlignment(ShelfAlignment alignment) { 53 TrayBackgroundView::SetShelfAlignment(alignment); 54 tray_container()->SetBorder(views::Border::NullBorder()); 55 56 // Pad button size to align with other controls in the system tray. 57 const gfx::ImageSkia image = button_->GetImage( 58 views::CustomButton::STATE_NORMAL); 59 int top_padding = (kTrayBarButtonWidth - image.height()) / 2; 60 int left_padding = (kTrayBarButtonWidth - image.width()) / 2; 61 int bottom_padding = kTrayBarButtonWidth - image.height() - top_padding; 62 int right_padding = kTrayBarButtonWidth - image.width() - left_padding; 63 64 // Square up the padding if horizontally aligned. Avoid extra padding when 65 // vertically aligned as the button would violate the width constraint on the 66 // shelf. 67 if (alignment == SHELF_ALIGNMENT_BOTTOM || alignment == SHELF_ALIGNMENT_TOP) { 68 gfx::Insets insets = button_->GetInsets(); 69 int additional_padding = std::max(0, top_padding - left_padding); 70 left_padding += additional_padding; 71 right_padding += additional_padding; 72 } 73 74 button_->SetBorder(views::Border::CreateEmptyBorder( 75 top_padding, 76 left_padding, 77 bottom_padding, 78 right_padding)); 79 } 80 81 base::string16 VirtualKeyboardTray::GetAccessibleNameForTray() { 82 return l10n_util::GetStringUTF16( 83 IDS_ASH_VIRTUAL_KEYBOARD_TRAY_ACCESSIBLE_NAME); 84 } 85 86 void VirtualKeyboardTray::HideBubbleWithView( 87 const views::TrayBubbleView* bubble_view) { 88 } 89 90 bool VirtualKeyboardTray::ClickedOutsideBubble() { 91 return false; 92 } 93 94 bool VirtualKeyboardTray::PerformAction(const ui::Event& event) { 95 keyboard::KeyboardController::GetInstance()->ShowKeyboard(true); 96 return true; 97 } 98 99 void VirtualKeyboardTray::ButtonPressed(views::Button* sender, 100 const ui::Event& event) { 101 DCHECK_EQ(button_, sender); 102 PerformAction(event); 103 } 104 105 void VirtualKeyboardTray::OnAccessibilityModeChanged( 106 AccessibilityNotificationVisibility notify) { 107 SetVisible(Shell::GetInstance()->accessibility_delegate()-> 108 IsVirtualKeyboardEnabled()); 109 } 110 111 } // namespace ash 112