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_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 namespace internal {
  15
  16 EventClientImpl::EventClientImpl() {
  17 }
  18
  19 EventClientImpl::~EventClientImpl() {
  20 }
  21
  22 bool EventClientImpl::CanProcessEventsWithinSubtree(
  23     const aura::Window* window) const {
  24   const aura::RootWindow* root_window = window ? window->GetRootWindow() : NULL;
  25   if (!root_window ||
  26       !Shell::GetInstance()->session_state_delegate()->IsUserSessionBlocked()) {
  27     return true;
  28   }
  29
  30   const aura::Window* lock_screen_containers = Shell::GetContainer(
  31       root_window,
  32       kShellWindowId_LockScreenContainersContainer);
  33   const aura::Window* lock_background_containers = Shell::GetContainer(
  34       root_window,
  35       kShellWindowId_LockScreenBackgroundContainer);
  36   const aura::Window* lock_screen_related_containers = Shell::GetContainer(
  37       root_window,
  38       kShellWindowId_LockScreenRelatedContainersContainer);
  39   bool can_process_events = (window->Contains(lock_screen_containers) &&
  40       window->Contains(lock_background_containers) &&
  41       window->Contains(lock_screen_related_containers)) ||
  42       lock_screen_containers->Contains(window) ||
  43       lock_background_containers->Contains(window) ||
  44       lock_screen_related_containers->Contains(window);
  45   if (keyboard::IsKeyboardEnabled()) {
  46     const aura::Window* virtual_keyboard_container = Shell::GetContainer(
  47         root_window,
  48         kShellWindowId_VirtualKeyboardContainer);
  49     can_process_events |= (window->Contains(virtual_keyboard_container) ||
  50                            virtual_keyboard_container->Contains(window));
  51   }
  52   return can_process_events;
  53 }
  54
  55 ui::EventTarget* EventClientImpl::GetToplevelEventTarget() {
  56   return Shell::GetInstance();
  57 }
  58
  59 }  // namespace internal
  60 }  // namespace ash