| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "shell_tab_handler.h" |
| |
| #include "ash/capture_mode/capture_mode_util.h" |
| #include "ash/focus_cycler.h" |
| #include "ash/shelf/shelf.h" |
| #include "ash/shelf/shelf_navigation_widget.h" |
| #include "ash/shell.h" |
| #include "ash/system/status_area_widget.h" |
| #include "ash/wm/tablet_mode/tablet_mode_controller.h" |
| #include "ash/wm/window_util.h" |
| #include "ui/events/event.h" |
| #include "ui/wm/public/activation_client.h" |
| |
| namespace ash { |
| |
| void ShellTabHandler::OnKeyEvent(ui::KeyEvent* key_event) { |
| // Only focus the shelf if the device is in clamshell mode, and the user |
| // pressed tab. |
| if (key_event->key_code() != ui::KeyboardCode::VKEY_TAB || |
| key_event->type() != ui::EventType::ET_KEY_PRESSED || |
| key_event->IsAltDown() || key_event->IsControlDown() || |
| key_event->IsCommandDown() || |
| shell_->tablet_mode_controller()->InTabletMode()) { |
| return; |
| } |
| |
| // Capture session will process their own tab events. |
| if (capture_mode_util::IsCaptureModeActive()) |
| return; |
| |
| aura::Window* root_window_for_new_windows = |
| Shell::GetRootWindowForNewWindows(); |
| |
| if (!root_window_for_new_windows || window_util::GetActiveWindow()) |
| return; |
| |
| // If there is no active window, focus the HomeButton or StatusWidget, |
| // depending on whether this is Tab or Shift + Tab. This will allow the |
| // users focus to traverse the shelf. |
| auto* shelf = Shelf::ForWindow(root_window_for_new_windows); |
| views::Widget* status_area_widget = shelf->status_area_widget(); |
| views::Widget* navigation_widget = shelf->navigation_widget(); |
| shell_->focus_cycler()->FocusWidget( |
| key_event->IsShiftDown() ? status_area_widget : navigation_widget); |
| key_event->SetHandled(); |
| key_event->StopPropagation(); |
| } |
| |
| } // namespace ash |