chrome/browser/ui/views/auto_keep_alive.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 "chrome/browser/ui/views/auto_keep_alive.h"
   6
   7 #include "chrome/browser/lifetime/application_lifetime.h"
   8
   9 #if defined(USE_AURA)
  10 #include "ui/aura/window.h"
  11 #include "ui/views/view_constants_aura.h"
  12 #endif
  13
  14 AutoKeepAlive::AutoKeepAlive(gfx::NativeWindow window)
  15     : keep_alive_available_(true) {
  16 #if defined(USE_AURA)
  17   // In case of aura we want default to be keep alive not available.
  18   keep_alive_available_ = false;
  19   if (window) {
  20     gfx::NativeWindow native_window = window->GetRootWindow();
  21     if (native_window->GetProperty(views::kDesktopRootWindow))
  22       keep_alive_available_ = true;
  23   }
  24 #endif
  25   if (keep_alive_available_)
  26     chrome::IncrementKeepAliveCount();
  27 }
  28
  29 AutoKeepAlive::~AutoKeepAlive() {
  30   if (keep_alive_available_)
  31     chrome::DecrementKeepAliveCount();
  32 }