electron/patches/common/chromium/mas-cgdisplayusesforcetogray.patch
2019-03-08 15:04:32 -08:00

29 lines
1.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeremy Apthorp <nornagon@nornagon.net>
Date: Thu, 20 Sep 2018 17:49:24 -0700
Subject: mas-cgdisplayusesforcetogray.patch
Removes usage of the CGDisplayUsesForceToGray private API.
diff --git a/ui/display/mac/screen_mac.mm b/ui/display/mac/screen_mac.mm
index 4d5b83a1a4b0c1d03378ab1aae8ef43935c387d3..463ff7105ac329cafed793fd87cfc8423e0a0ed7 100644
--- a/ui/display/mac/screen_mac.mm
+++ b/ui/display/mac/screen_mac.mm
@@ -107,7 +107,17 @@ Display BuildDisplayForScreen(NSScreen* screen) {
display.set_color_depth(NSBitsPerPixelFromDepth([screen depth]));
display.set_depth_per_component(NSBitsPerSampleFromDepth([screen depth]));
+#ifdef MAS_BUILD
+ // This is equivalent to the CGDisplayUsesForceToGray() API as at 2018-08-06,
+ // but avoids usage of the private API.
+ CFStringRef app = CFSTR("com.apple.CoreGraphics");
+ CFStringRef key = CFSTR("DisplayUseForcedGray");
+ Boolean key_valid = false;
+ display.set_is_monochrome(
+ CFPreferencesGetAppBooleanValue(key, app, &key_valid));
+#else
display.set_is_monochrome(CGDisplayUsesForceToGray());
+#endif
// CGDisplayRotation returns a double. Display::SetRotationAsDegree will
// handle the unexpected situations were the angle is not a multiple of 90.