From 0b37441f177a46d40aad55f4553fa844bd4dbf6d Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Mon, 14 Jan 2019 21:11:33 -0500
Subject: [PATCH] Make repeated invalidations more efficient

---
 lib/ui/ui.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/ui/ui.go b/lib/ui/ui.go
index 8a390f3..8fabf59 100644
--- a/lib/ui/ui.go
+++ b/lib/ui/ui.go
@@ -78,6 +78,16 @@ func (state *UI) Tick() bool {
 		}
 		state.Content.Event(event)
 	case <-state.invalidations:
+		for {
+			// Flush any other pending invalidations
+			select {
+			case <-state.invalidations:
+				break
+			default:
+				goto done
+			}
+		}
+	done:
 		state.Content.Draw(state.ctx)
 		state.screen.Show()
 	default: