ui/aura/window_observer.cc

   1 // Copyright 2014 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/aura/window_observer.h"
   6
   7 #include "base/logging.h"
   8 #include "ui/aura/window.h"
   9
  10 namespace aura {
  11
  12 WindowObserver::WindowObserver() : observing_(0) {
  13 }
  14
  15 WindowObserver::~WindowObserver() {
  16   // TODO(flackr): Remove this check and observing_ counter when the cause of
  17   // http://crbug.com/365364 is discovered.
  18   CHECK_EQ(0, observing_);
  19 }
  20
  21 void WindowObserver::OnObservingWindow(aura::Window* window) {
  22   if (!window->HasObserver(this))
  23     observing_++;
  24 }
  25
  26 void WindowObserver::OnUnobservingWindow(aura::Window* window) {
  27   if (window->HasObserver(this))
  28     observing_--;
  29 }
  30
  31 }  // namespace aura