From c2d2409bffe17e6e9a7363ede96fb2c30a136f1b Mon Sep 17 00:00:00 2001
From: Mark Thompson <129641948+NotherNgineer@users.noreply.github.com>
Date: Tue, 9 Jan 2024 23:32:58 -0600
Subject: [PATCH] Modify encoder handler to not call "on_encoder" functions if
 no change (#1749)

---
 firmware/application/apps/ui_scanner.cpp | 2 +-
 firmware/application/event_m0.cpp        | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/firmware/application/apps/ui_scanner.cpp b/firmware/application/apps/ui_scanner.cpp
index 902f697d..194ed9ce 100644
--- a/firmware/application/apps/ui_scanner.cpp
+++ b/firmware/application/apps/ui_scanner.cpp
@@ -275,7 +275,7 @@ ScannerView::~ScannerView() {
 }
 
 void ScannerView::show_max_index() {  // show total number of freqs to scan
-    field_current_index.set_text("---");
+    field_current_index.set_text("<->");
 
     if (entries.size() == FREQMAN_MAX_PER_FILE) {
         text_max_index.set_style(&Styles::red);
diff --git a/firmware/application/event_m0.cpp b/firmware/application/event_m0.cpp
index 964d17fb..12fc8197 100644
--- a/firmware/application/event_m0.cpp
+++ b/firmware/application/event_m0.cpp
@@ -410,6 +410,9 @@ void EventDispatcher::handle_encoder() {
 
     const uint32_t encoder_now = get_encoder_position();
     const int32_t delta = static_cast<int32_t>(encoder_now - encoder_last);
+    if (delta == 0)
+        return;
+
     encoder_last = encoder_now;
     const auto event = static_cast<ui::EncoderEvent>(delta);
     event_bubble_encoder(event);