ash/wm/event_client_impl.cc

   1 // Copyright (c) 2012 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/wm/event_client_impl.h"
   6
   7 #include "ash/session/session_state_delegate.h"
   8 #include "ash/shell.h"
   9 #include "ash/shell_window_ids.h"
  10 #include "ui/aura/window.h"
  11 #include "ui/keyboard/keyboard_util.h"
  12
  13 namespace ash {
  14
  15 EventClientImpl::EventClientImpl() {
  16 }
  17
  18 EventClientImpl::~EventClientImpl() {
  19 }
  20
  21 bool EventClientImpl::CanProcessEventsWithinSubtree(
  22     const aura::Window* window) const {
  23   const aura::Window* root_window = window ? window->GetRootWindow() : NULL;
  24   if (!root_window ||
  25       !Shell::GetInstance()->session_state_delegate()->IsUserSessionBlocked()) {
  26     return true;
  27   }
  28
  29   const aura::Window* lock_screen_containers = Shell::GetContainer(
  30       root_window,
  31       kShellWindowId_LockScreenContainersContainer);
  32   const aura::Window* lock_background_containers = Shell::GetContainer(
  33       root_window,
  34       kShellWindowId_LockScreenBackgroundContainer);
  35   const aura::Window* lock_screen_related_containers = Shell::GetContainer(
  36       root_window,
  37       kShellWindowId_LockScreenRelatedContainersContainer);
  38   bool can_process_events = (window->Contains(lock_screen_containers) &&
  39       window->Contains(lock_background_containers) &&
  40       window->Contains(lock_screen_related_containers)) ||
  41       lock_screen_containers->Contains(window) ||
  42       lock_background_containers->Contains(window) ||
  43       lock_screen_related_containers->Contains(window);
  44   if (keyboard::IsKeyboardEnabled()) {
  45     const aura::Window* virtual_keyboard_container = Shell::GetContainer(
  46         root_window,
  47         kShellWindowId_VirtualKeyboardContainer);
  48     can_process_events |= (window->Contains(virtual_keyboard_container) ||
  49                            virtual_keyboard_container->Contains(window));
  50   }
  51   return can_process_events;
  52 }
  53
  54 ui::EventTarget* EventClientImpl::GetToplevelEventTarget() {
  55   return Shell::GetInstance();
  56 }
  57
  58 }  // namespace ash