widget/nsBaseScreen.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=8 et :
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #define MOZ_FATAL_ASSERTIONS_FOR_THREAD_SAFETY
   9
  10 #include "nsBaseScreen.h"
  11
  12 NS_IMPL_ISUPPORTS(nsBaseScreen, nsIScreen)
  13
  14 nsBaseScreen::nsBaseScreen()
  15 {
  16 }
  17
  18 nsBaseScreen::~nsBaseScreen() { }
  19
  20 NS_IMETHODIMP
  21 nsBaseScreen::GetRectDisplayPix(int32_t *outLeft,  int32_t *outTop,
  22                                 int32_t *outWidth, int32_t *outHeight)
  23 {
  24   return GetRect(outLeft, outTop, outWidth, outHeight);
  25 }
  26
  27 NS_IMETHODIMP
  28 nsBaseScreen::GetAvailRectDisplayPix(int32_t *outLeft,  int32_t *outTop,
  29                                      int32_t *outWidth, int32_t *outHeight)
  30 {
  31   return GetAvailRect(outLeft, outTop, outWidth, outHeight);
  32 }
  33
  34 NS_IMETHODIMP
  35 nsBaseScreen::GetContentsScaleFactor(double* aContentsScaleFactor)
  36 {
  37   *aContentsScaleFactor = 1.0;
  38   return NS_OK;
  39 }
  40
  41 NS_IMETHODIMP
  42 nsBaseScreen::GetDefaultCSSScaleFactor(double* aScaleFactor)
  43 {
  44   *aScaleFactor = 1.0;
  45   return NS_OK;
  46 }
  47
  48 NS_IMETHODIMP
  49 nsBaseScreen::GetDpi(float* aDPI)
  50 {
  51   *aDPI = 96;
  52   return NS_OK;
  53 }