1 files changed, 146 insertions, 0 deletions
diff --git a/widget/uikit/nsScreenManager.mm b/widget/uikit/nsScreenManager.mm
new file mode 100644
index 0000000000..601c911cd9
--- /dev/null
+++ b/widget/uikit/nsScreenManager.mm
@@ -0,0 +1,146 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#import <UIKit/UIScreen.h>
+
+#include "gfxPoint.h"
+#include "nsScreenManager.h"
+#include "nsAppShell.h"
+
+static LayoutDeviceIntRect gScreenBounds;
+static bool gScreenBoundsSet = false;
+
+UIKitScreen::UIKitScreen(UIScreen* aScreen)
+{
+    mScreen = [aScreen retain];
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetRect(int32_t *outX, int32_t *outY, int32_t *outWidth, int32_t *outHeight)
+{
+    return GetRectDisplayPix(outX, outY, outWidth, outHeight);
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetAvailRect(int32_t *outX, int32_t *outY, int32_t *outWidth, int32_t *outHeight)
+{
+    return GetAvailRectDisplayPix(outX, outY, outWidth, outHeight);
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetRectDisplayPix(int32_t *outX, int32_t *outY, int32_t *outWidth, int32_t *outHeight)
+{
+    nsIntRect rect = UIKitScreenManager::GetBounds();
+    *outX = rect.x;
+    *outY = rect.y;
+    *outWidth = rect.width;
+    *outHeight = rect.height;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetAvailRectDisplayPix(int32_t *outX, int32_t *outY, int32_t *outWidth, int32_t *outHeight)
+{
+    CGRect rect = [mScreen applicationFrame];
+    CGFloat scale = [mScreen scale];
+
+    *outX = rect.origin.x * scale;
+    *outY = rect.origin.y * scale;
+    *outWidth = rect.size.width * scale;
+    *outHeight = rect.size.height * scale;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetPixelDepth(int32_t *aPixelDepth)
+{
+  // Close enough.
+  *aPixelDepth = 24;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetColorDepth(int32_t *aColorDepth)
+{
+  return GetPixelDepth(aColorDepth);
+}
+
+NS_IMETHODIMP
+UIKitScreen::GetContentsScaleFactor(double* aContentsScaleFactor)
+{
+    *aContentsScaleFactor = [mScreen scale];
+    return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(UIKitScreenManager, nsIScreenManager)
+
+UIKitScreenManager::UIKitScreenManager()
+: mScreen(new UIKitScreen([UIScreen mainScreen]))
+{
+}
+
+LayoutDeviceIntRect
+UIKitScreenManager::GetBounds()
+{
+    if (!gScreenBoundsSet) {
+        CGRect rect = [[UIScreen mainScreen] bounds];
+        CGFloat scale = [[UIScreen mainScreen] scale];
+        gScreenBounds.x = rect.origin.x * scale;
+        gScreenBounds.y = rect.origin.y * scale;
+        gScreenBounds.width = rect.size.width * scale;
+        gScreenBounds.height = rect.size.height * scale;
+        gScreenBoundsSet = true;
+    }
+    printf("UIKitScreenManager::GetBounds: %d %d %d %d\n",
+           gScreenBounds.x, gScreenBounds.y, gScreenBounds.width, gScreenBounds.height);
+    return gScreenBounds;
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::GetPrimaryScreen(nsIScreen** outScreen)
+{
+  NS_IF_ADDREF(*outScreen = mScreen.get());
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::ScreenForRect(int32_t inLeft,
+                               int32_t inTop,
+                               int32_t inWidth,
+                               int32_t inHeight,
+                               nsIScreen** outScreen)
+{
+  return GetPrimaryScreen(outScreen);
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::ScreenForId(uint32_t id,
+                                nsIScreen** outScreen)
+{
+    return GetPrimaryScreen(outScreen);
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::ScreenForNativeWidget(void* aWidget, nsIScreen** outScreen)
+{
+  return GetPrimaryScreen(outScreen);
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::GetNumberOfScreens(uint32_t* aNumberOfScreens)
+{
+  //TODO: support multiple screens
+  *aNumberOfScreens = 1;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+UIKitScreenManager::GetSystemDefaultScale(float* aScale)
+{
+    *aScale = [UIScreen mainScreen].scale;
+    return NS_OK;
+}