feat: battery states && format-full/charging

include/modules/battery.hpp

@@ -22,6 +22,8 @@ class Battery : public ALabel {
     static inline const fs::path data_dir_ = "/sys/class/power_supply/";
   
     void worker();
+    std::tuple<uint16_t, std::string> getInfos();
+    std::string getState(uint16_t, bool);
 
     util::SleeperThread thread_;
     util::SleeperThread threadTimer_;

resources/config

@@ -43,9 +43,14 @@
         "format": "{}% "
     },
     "battery": {
-        // "warning": 30, // Default value: 30
-        // "critical": 15, // Default value: 15
+        "states": {
+            // "good": 95,
+            "warning": 30,
+            "critical": 15
+        },
         "format": "{capacity}% {icon}",
+        // "format-good": "", // An empty format will hide the module
+        "format-full": "",
         "format-icons": ["", "", "", "", ""]
     },
     "battery#bat2": {

src/modules/battery.cpp

@@ -34,7 +34,6 @@ waybar::modules::Battery::Battery(const Json::Value& config)
   for (auto const& bat : batteries_) {
     inotify_add_watch(fd_, (bat / "uevent").c_str(), IN_ACCESS);
   }
-  label_.set_name("battery");
   worker();
 }
 
@@ -63,7 +62,7 @@ void waybar::modules::Battery::worker()
   };
 }
 
-auto waybar::modules::Battery::update() -> void
+std::tuple<uint16_t, std::string> waybar::modules::Battery::getInfos()
 {
   try {
     uint16_t total = 0;
@@ -79,28 +78,68 @@ auto waybar::modules::Battery::update() -> void
       total += capacity;
     }
     uint16_t capacity = total / batteries_.size();
-    label_.set_text(fmt::format(format_, fmt::arg("capacity", capacity),
-      fmt::arg("icon", getIcon(capacity))));
-    label_.set_tooltip_text(status);
-    bool charging = status == "Charging";
-    if (charging) {
-      label_.get_style_context()->add_class("charging");
-    } else {
-      label_.get_style_context()->remove_class("charging");
-    }
-    auto warning = config_["warning"].isUInt() ? config_["warning"].asUInt() : 30;
-    auto critical = config_["critical"].isUInt() ? config_["critical"].asUInt() : 15;
-    if (capacity <= critical && !charging) {
-      label_.get_style_context()->add_class("critical");
-      label_.get_style_context()->remove_class("warning");
-    } else if (capacity <= warning && !charging) {
-      label_.get_style_context()->add_class("warning");
-      label_.get_style_context()->remove_class("critical");
-    } else {
-      label_.get_style_context()->remove_class("critical");
-      label_.get_style_context()->remove_class("warning");
-    }
+    return {capacity, status};
   } catch (const std::exception& e) {
     std::cerr << e.what() << std::endl;
+    return {0, "Unknown"};
+  }
+}
+
+std::string waybar::modules::Battery::getState(uint16_t capacity, bool charging)
+{
+  // Get current state
+  std::vector<std::pair<std::string, uint16_t>> states;
+  if (config_["states"].isObject()) {
+    for (auto it = config_["states"].begin(); it != config_["states"].end(); ++it) {
+      if (it->isUInt() && it.key().isString()) {
+        states.push_back({it.key().asString(), it->asUInt()});
+      }
+    }
+  }
+  // Sort states
+  std::sort(states.begin(), states.end(), [](auto &a, auto &b) {
+    return a.second < b.second;
+  });
+  std::string validState = "";
+  for (auto state : states) {
+    if (capacity <= state.second && !charging && validState.empty()) {
+      label_.get_style_context()->add_class(state.first);
+      validState = state.first;
+    } else {
+      label_.get_style_context()->remove_class(state.first);
+    }
+  }
+  return validState;
+}
+
+auto waybar::modules::Battery::update() -> void
+{
+  auto [capacity, status] = getInfos();
+  label_.set_tooltip_text(status);
+  bool charging = status == "Charging";
+  auto format = format_;
+  if (charging) {
+    label_.get_style_context()->add_class("charging");
+    if (config_["format-charging"].isString()) {
+      format = config_["format-charging"].asString();
+    }
+  } else {
+    label_.get_style_context()->remove_class("charging");
+    if (status == "Full" && config_["format-full"].isString()) {
+      format = config_["format-full"].asString();
+    }
+  }
+  auto state = getState(capacity, charging);
+  if (!state.empty() && config_["format-" + state].isString()) {
+    format = config_["format-" + state].asString();
+  }
+  if (format.empty()) {
+    event_box_.hide();
+    label_.set_name("");
+  } else {
+    event_box_.show();
+    label_.set_name("battery");
+    label_.set_text(fmt::format(format, fmt::arg("capacity", capacity),
+      fmt::arg("icon", getIcon(capacity))));
   }
 }