From 8fce9378cc4d9d10a2910ad12041a03a0c46a723 Mon Sep 17 00:00:00 2001
From: Jared Boone <jboone@earfeast.com>
Date: Sat, 5 Dec 2015 19:52:12 -0800
Subject: [PATCH] Extract entry list truncation.

---
 firmware/application/app_ais.cpp | 10 +++++++---
 firmware/application/app_ais.hpp |  2 ++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/firmware/application/app_ais.cpp b/firmware/application/app_ais.cpp
index ebdbc486..75213c5a 100644
--- a/firmware/application/app_ais.cpp
+++ b/firmware/application/app_ais.cpp
@@ -349,6 +349,12 @@ void AISView::on_hide() {
 	View::on_hide();
 }
 
+void AISView::truncate_entries() {
+	while(recent.size() > 64) {
+		recent.pop_back();
+	}
+}
+
 void AISView::on_packet(const baseband::ais::Packet& packet) {
 	const auto source_id = packet.source_id();
 	auto matching_recent = std::find_if(recent.begin(), recent.end(),
@@ -360,9 +366,7 @@ void AISView::on_packet(const baseband::ais::Packet& packet) {
 		recent.erase(matching_recent);
 	} else {
 		recent.emplace_front(source_id);
-		while(recent.size() > 64) {
-			recent.pop_back();
-		}
+		truncate_entries();
 	}
 
 	auto& entry = recent.front();
diff --git a/firmware/application/app_ais.hpp b/firmware/application/app_ais.hpp
index 0bc82877..6979770a 100644
--- a/firmware/application/app_ais.hpp
+++ b/firmware/application/app_ais.hpp
@@ -173,6 +173,8 @@ private:
 
 	void on_packet(const baseband::ais::Packet& packet);
 
+	void truncate_entries();
+
 	RecentEntries::iterator selected_entry();
 
 	void advance(const int32_t amount);