Implement UpdateBaseElements on Cocoa to update colours to match current system

settings. Trigger UpdateBaseElements when system settings change.
This makes Scintilla (by default) track the correct tint to show as the
selection background.

1 files changed, 25 insertions, 0 deletions

diff --git a/cocoa/ScintillaView.mm b/cocoa/ScintillaView.mm
index 593722c1e..f878a7a6b 100644
--- a/cocoa/ScintillaView.mm
+++ b/cocoa/ScintillaView.mm
@@ -338,6 +338,17 @@ static NSCursor *cursorFromEnum(Window::Cursor cursor) {
 //--------------------------------------------------------------------------------------------------
 
 /**
+ * Gets called by the runtime when the effective appearance changes.
+ */
+- (void) viewDidChangeEffectiveAppearance {
+	if (mOwner.backend) {
+		mOwner.backend->UpdateBaseElements();
+	}
+}
+
+//--------------------------------------------------------------------------------------------------
+
+/**
  * Gets called by the runtime when the view needs repainting.
  */
 - (void) drawRect: (NSRect) rect {
@@ -1454,11 +1465,18 @@ static NSCursor *cursorFromEnum(Window::Cursor cursor) {
 			       name: NSWindowWillMoveNotification
 			     object: self.window];
 
+		[center addObserver: self
+			   selector: @selector(defaultsDidChange:)
+			       name: NSSystemColorsDidChangeNotification
+			     object: self.window];
+
 		[scrollView.contentView setPostsBoundsChangedNotifications: YES];
 		[center addObserver: self
 			   selector: @selector(scrollerAction:)
 			       name: NSViewBoundsDidChangeNotification
 			     object: scrollView.contentView];
+
+		mBackend->UpdateBaseElements();
 	}
 	return self;
 }
@@ -1498,6 +1516,13 @@ static NSCursor *cursorFromEnum(Window::Cursor cursor) {
 
 //--------------------------------------------------------------------------------------------------
 
+- (void) defaultsDidChange: (NSNotification *) note {
+#pragma unused(note)
+	mBackend->UpdateBaseElements();
+}
+
+//--------------------------------------------------------------------------------------------------
+
 - (void) viewDidMoveToWindow {
 	[super viewDidMoveToWindow];