hal/fallback/FallbackScreenConfiguration.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "Hal.h"
   6 #include "mozilla/dom/ScreenOrientation.h"
   7 #include "nsIScreenManager.h"
   8
   9 namespace mozilla {
  10 namespace hal_impl {
  11
  12 void
  13 EnableScreenConfigurationNotifications()
  14 {
  15 }
  16
  17 void
  18 DisableScreenConfigurationNotifications()
  19 {
  20 }
  21
  22 void
  23 GetCurrentScreenConfiguration(hal::ScreenConfiguration* aScreenConfiguration)
  24 {
  25   nsresult rv;
  26   nsCOMPtr<nsIScreenManager> screenMgr =
  27     do_GetService("@mozilla.org/gfx/screenmanager;1", &rv);
  28   if (NS_FAILED(rv)) {
  29     NS_ERROR("Can't find nsIScreenManager!");
  30     return;
  31   }
  32
  33   nsIntRect rect;
  34   int32_t colorDepth, pixelDepth;
  35   dom::ScreenOrientation orientation;
  36   nsCOMPtr<nsIScreen> screen;
  37
  38   screenMgr->GetPrimaryScreen(getter_AddRefs(screen));
  39   screen->GetRect(&rect.x, &rect.y, &rect.width, &rect.height);
  40   screen->GetColorDepth(&colorDepth);
  41   screen->GetPixelDepth(&pixelDepth);
  42   orientation = rect.width >= rect.height
  43                 ? dom::eScreenOrientation_LandscapePrimary
  44                 : dom::eScreenOrientation_PortraitPrimary;
  45
  46   *aScreenConfiguration =
  47       hal::ScreenConfiguration(rect, orientation, colorDepth, pixelDepth);
  48 }
  49
  50 bool
  51 LockScreenOrientation(const dom::ScreenOrientation& aOrientation)
  52 {
  53   return false;
  54 }
  55
  56 void
  57 UnlockScreenOrientation()
  58 {
  59 }
  60
  61 } // hal_impl
  62 } // mozilla