| // Copyright 2020 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include"ash/shell_tab_handler.h" |
| |
| #include"ash/capture_mode/capture_mode_util.h" |
| #include"ash/focus/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/display/screen.h" |
| #include"ui/events/event.h" |
| #include"ui/wm/public/activation_client.h" |
| |
| namespace ash{ |
| |
| voidShellTabHandler::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::kKeyPressed|| |
| key_event->IsAltDown()|| key_event->IsControlDown()|| |
| key_event->IsCommandDown()|| |
| display::Screen::GetScreen()->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 |
