widget/uikit/nsScreenManager.mm

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #import <UIKit/UIScreen.h>
   7
   8 #include "gfxPoint.h"
   9 #include "nsScreenManager.h"
  10 #include "nsAppShell.h"
  11
  12 static LayoutDeviceIntRect gScreenBounds;
  13 static bool gScreenBoundsSet = false;
  14
  15 UIKitScreen::UIKitScreen(UIScreen* aScreen) { mScreen = [aScreen retain]; }
  16
  17 NS_IMETHODIMP
  18 UIKitScreen::GetRect(int32_t* outX, int32_t* outY, int32_t* outWidth,
  19                      int32_t* outHeight) {
  20   return GetRectDisplayPix(outX, outY, outWidth, outHeight);
  21 }
  22
  23 NS_IMETHODIMP
  24 UIKitScreen::GetAvailRect(int32_t* outX, int32_t* outY, int32_t* outWidth,
  25                           int32_t* outHeight) {
  26   return GetAvailRectDisplayPix(outX, outY, outWidth, outHeight);
  27 }
  28
  29 NS_IMETHODIMP
  30 UIKitScreen::GetRectDisplayPix(int32_t* outX, int32_t* outY, int32_t* outWidth,
  31                                int32_t* outHeight) {
  32   nsIntRect rect = UIKitScreenManager::GetBounds();
  33   *outX = rect.x;
  34   *outY = rect.y;
  35   *outWidth = rect.width;
  36   *outHeight = rect.height;
  37
  38   return NS_OK;
  39 }
  40
  41 NS_IMETHODIMP
  42 UIKitScreen::GetAvailRectDisplayPix(int32_t* outX, int32_t* outY,
  43                                     int32_t* outWidth, int32_t* outHeight) {
  44   CGRect rect = [mScreen applicationFrame];
  45   CGFloat scale = [mScreen scale];
  46
  47   *outX = rect.origin.x * scale;
  48   *outY = rect.origin.y * scale;
  49   *outWidth = rect.size.width * scale;
  50   *outHeight = rect.size.height * scale;
  51
  52   return NS_OK;
  53 }
  54
  55 NS_IMETHODIMP
  56 UIKitScreen::GetPixelDepth(int32_t* aPixelDepth) {
  57   // Close enough.
  58   *aPixelDepth = 24;
  59   return NS_OK;
  60 }
  61
  62 NS_IMETHODIMP
  63 UIKitScreen::GetColorDepth(int32_t* aColorDepth) {
  64   return GetPixelDepth(aColorDepth);
  65 }
  66
  67 NS_IMETHODIMP
  68 UIKitScreen::GetContentsScaleFactor(double* aContentsScaleFactor) {
  69   *aContentsScaleFactor = [mScreen scale];
  70   return NS_OK;
  71 }
  72
  73 NS_IMPL_ISUPPORTS(UIKitScreenManager, nsIScreenManager)
  74
  75 UIKitScreenManager::UIKitScreenManager()
  76     : mScreen(new UIKitScreen([UIScreen mainScreen])) {}
  77
  78 LayoutDeviceIntRect UIKitScreenManager::GetBounds() {
  79   if (!gScreenBoundsSet) {
  80     CGRect rect = [[UIScreen mainScreen] bounds];
  81     CGFloat scale = [[UIScreen mainScreen] scale];
  82     gScreenBounds.x = rect.origin.x * scale;
  83     gScreenBounds.y = rect.origin.y * scale;
  84     gScreenBounds.width = rect.size.width * scale;
  85     gScreenBounds.height = rect.size.height * scale;
  86     gScreenBoundsSet = true;
  87   }
  88   printf("UIKitScreenManager::GetBounds: %d %d %d %d\n", gScreenBounds.x,
  89          gScreenBounds.y, gScreenBounds.width, gScreenBounds.height);
  90   return gScreenBounds;
  91 }
  92
  93 NS_IMETHODIMP
  94 UIKitScreenManager::GetPrimaryScreen(nsIScreen** outScreen) {
  95   NS_IF_ADDREF(*outScreen = mScreen.get());
  96   return NS_OK;
  97 }
  98
  99 NS_IMETHODIMP
 100 UIKitScreenManager::ScreenForRect(int32_t inLeft, int32_t inTop,
 101                                   int32_t inWidth, int32_t inHeight,
 102                                   nsIScreen** outScreen) {
 103   return GetPrimaryScreen(outScreen);
 104 }