From 9f337db2d2d75f91c1d1ba73fabb01c5a020ed04 Mon Sep 17 00:00:00 2001
From: Viktar Lukashonak <myxabeer@gmail.com>
Date: Wed, 16 Mar 2022 15:50:00 +0300
Subject: [PATCH] Hide/Unhide module when "format*" is empty.

---
 src/modules/temperature.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/modules/temperature.cpp b/src/modules/temperature.cpp
index 84560e8d..86aea70a 100644
--- a/src/modules/temperature.cpp
+++ b/src/modules/temperature.cpp
@@ -3,6 +3,11 @@
 
 waybar::modules::Temperature::Temperature(const std::string& id, const Json::Value& config)
     : ALabel(config, "temperature", id, "{temperatureC}°C", 10) {
+  if (config_["format"].asString().empty() && config_["format-critical"].asString().empty()) {
+    throw std::runtime_error("Format configuration is not defined");
+  } else if (config_["format"].asString().empty()) {
+    format_.clear();
+  }
   if (config_["hwmon-path"].isString()) {
     file_path_ = config_["hwmon-path"].asString();
   } else if (config_["hwmon-path-abs"].isString() && config_["input-filename"].isString()) {
@@ -34,6 +39,15 @@ auto waybar::modules::Temperature::update() -> void {
   } else {
     label_.get_style_context()->remove_class("critical");
   }
+
+  if(format.empty())
+  {
+    event_box_.hide();
+    return;
+  } else {
+    event_box_.show();
+  }
+
   auto max_temp = config_["critical-threshold"].isInt() ? config_["critical-threshold"].asInt() : 0;
   label_.set_markup(fmt::format(format,
                                 fmt::arg("temperatureC", temperature_c),