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Fix GUI stuck on Big Sur
See:
- https://github.com/bitcoin-core/gui/issues/249
- https://github.com/bitcoin/bitcoin/pull/21495
- https://bugreports.qt.io/browse/QTBUG-87014
We should be able to drop this once we are using one of the following versions:
- Qt 5.12.11 or later, see upstream commit: c5d904639dbd690a36306e2b455610029704d821
- Qt 5.15.3 or later, see upstream commit: 2cae34354bd41ae286258c7a6b3653b746e786ae
--- a/qtbase/src/plugins/platforms/cocoa/qnsview_drawing.mm
+++ b/qtbase/src/plugins/platforms/cocoa/qnsview_drawing.mm
@@ -95,8 +95,15 @@
// by AppKit at a point where we've already set up other parts of the platform plugin
// based on the presence of layers or not. Once we've rewritten these parts to support
// dynamically picking up layer enablement we can let AppKit do its thing.
- return QMacVersion::buildSDK() >= QOperatingSystemVersion::MacOSMojave
- && QMacVersion::currentRuntime() >= QOperatingSystemVersion::MacOSMojave;
+
+ if (QMacVersion::currentRuntime() >= QOperatingSystemVersion::MacOSBigSur)
+ return true; // Big Sur always enables layer-backing, regardless of SDK
+
+ if (QMacVersion::currentRuntime() >= QOperatingSystemVersion::MacOSMojave
+ && QMacVersion::buildSDK() >= QOperatingSystemVersion::MacOSMojave)
+ return true; // Mojave and Catalina enable layers based on the app's SDK
+
+ return false; // Prior versions needed explicitly enabled layer backing
}
- (BOOL)layerExplicitlyRequested
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