ui/views/focus/widget_focus_manager.cc

   1 // Copyright (c) 2011 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 "ui/views/focus/widget_focus_manager.h"
   6
   7 #include "base/memory/singleton.h"
   8
   9 namespace views {
  10
  11 // WidgetFocusManager ----------------------------------------------------------
  12
  13 // static
  14 WidgetFocusManager* WidgetFocusManager::GetInstance() {
  15   return Singleton<WidgetFocusManager>::get();
  16 }
  17
  18 void WidgetFocusManager::AddFocusChangeListener(
  19     WidgetFocusChangeListener* listener) {
  20   focus_change_listeners_.AddObserver(listener);
  21 }
  22
  23 void WidgetFocusManager::RemoveFocusChangeListener(
  24     WidgetFocusChangeListener* listener) {
  25   focus_change_listeners_.RemoveObserver(listener);
  26 }
  27
  28 void WidgetFocusManager::OnNativeFocusChanged(gfx::NativeView focused_now) {
  29   if (enabled_) {
  30     FOR_EACH_OBSERVER(WidgetFocusChangeListener, focus_change_listeners_,
  31                       OnNativeFocusChanged(focused_now));
  32   }
  33 }
  34
  35 WidgetFocusManager::WidgetFocusManager() : enabled_(true) {}
  36
  37 WidgetFocusManager::~WidgetFocusManager() {}
  38
  39 // AutoNativeNotificationDisabler ----------------------------------------------
  40
  41 AutoNativeNotificationDisabler::AutoNativeNotificationDisabler() {
  42   WidgetFocusManager::GetInstance()->DisableNotifications();
  43 }
  44
  45 AutoNativeNotificationDisabler::~AutoNativeNotificationDisabler() {
  46   WidgetFocusManager::GetInstance()->EnableNotifications();
  47 }
  48
  49 }  // namespace views