From ccd7f0661c3fa3fa283dd59058a0779ea1360df2 Mon Sep 17 00:00:00 2001
From: Edward Firmo <94725493+edwardtfn@users.noreply.github.com>
Date: Sat, 25 Nov 2023 09:38:45 +0100
Subject: [PATCH] Add `is_detected()` for Nextion displays (#5825)

---
 esphome/components/nextion/nextion.cpp    | 3 ++-
 esphome/components/nextion/nextion_base.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/esphome/components/nextion/nextion.cpp b/esphome/components/nextion/nextion.cpp
index 0134595050..92afdfe3dc 100644
--- a/esphome/components/nextion/nextion.cpp
+++ b/esphome/components/nextion/nextion.cpp
@@ -93,7 +93,8 @@ bool Nextion::check_connect_() {
     connect_info.push_back(response.substr(start, end - start));
   }
 
-  if (connect_info.size() == 7) {
+  this->is_detected_ = (connect_info.size() == 7);
+  if (this->is_detected_) {
     ESP_LOGN(TAG, "Received connect_info %zu", connect_info.size());
 
     this->device_model_ = connect_info[2];
diff --git a/esphome/components/nextion/nextion_base.h b/esphome/components/nextion/nextion_base.h
index a24fd74060..ffc431ed13 100644
--- a/esphome/components/nextion/nextion_base.h
+++ b/esphome/components/nextion/nextion_base.h
@@ -48,10 +48,12 @@ class NextionBase {
 
   bool is_sleeping() { return this->is_sleeping_; }
   bool is_setup() { return this->is_setup_; }
+  bool is_detected() { return this->is_detected_; }
 
  protected:
   bool is_setup_ = false;
   bool is_sleeping_ = false;
+  bool is_detected_ = false;
 };
 
 }  // namespace nextion