Avoid hangs in idle styling modes caused by high-priority idle work styling.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/Editor.h b/src/Editor.h
index 9d0783f09..eb921541f 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -522,6 +522,9 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	Sci::Position PositionAfterMaxStyling(Sci::Position posMax, bool scrolling) const;
 	void StartIdleStyling(bool truncatedLastStyling);
 	void StyleAreaBounded(PRectangle rcArea, bool scrolling);
+	constexpr bool SynchronousStylingToVisible() const noexcept {
+		return (idleStyling == SC_IDLESTYLING_NONE) || (idleStyling == SC_IDLESTYLING_AFTERVISIBLE);
+	}
 	void IdleStyling();
 	virtual void IdleWork();
 	virtual void QueueIdleWork(WorkNeeded::workItems items, Sci::Position upTo=0);