feat(network): signal strength

include/modules/network.hpp

@@ -35,7 +35,8 @@ namespace waybar::modules {
         double frequency;
       } wireless_info_t;
     private:
-      void _parseEssid(struct nlattr** bss);
+      void _parseEssid(struct nlattr **bss);
+      void _parseSignal(struct nlattr **bss);
       bool _associatedOrJoined(struct nlattr **bss);
       static int _scanCb(struct nl_msg *msg, void *data);
       auto _getInfo() -> void;
@@ -44,6 +45,7 @@ namespace waybar::modules {
       Json::Value _config;
       std::size_t _ifid;
       std::string _essid;
+      int _signalStrength;
   };
 
 }

resources/config

@@ -12,6 +12,6 @@
     },
     "network": {
         "interface": "wlp2s0",
-        "format": "{} "
+        "format": "{essid} ({signalStrength}dBm) "
     }
 }

src/modules/network.cpp

@@ -16,7 +16,10 @@ auto waybar::modules::Network::update() -> void
 {
   _getInfo();
   auto format = _config["format"] ? _config["format"].asString() : "{}";
-  _label.set_text(fmt::format(format, _essid));
+  _label.set_text(fmt::format(format,
+    fmt::arg("essid", _essid),
+    fmt::arg("signalStrength", _signalStrength)
+  ));
 }
 
 int waybar::modules::Network::_scanCb(struct nl_msg *msg, void *data) {
@@ -44,7 +47,8 @@ int waybar::modules::Network::_scanCb(struct nl_msg *msg, void *data) {
     if (!net->_associatedOrJoined(bss))
       return NL_SKIP;
     net->_parseEssid(bss);
-    // TODO: parse signal
+    net->_parseSignal(bss);
+    // TODO: parse quality
     return NL_SKIP;
 }
 
@@ -70,6 +74,14 @@ void waybar::modules::Network::_parseEssid(struct nlattr **bss)
   }
 }
 
+void waybar::modules::Network::_parseSignal(struct nlattr **bss) {
+    if (bss[NL80211_BSS_SIGNAL_MBM] != nullptr) {
+      // signalstrength in dBm
+      _signalStrength =
+        static_cast<int>(nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM])) / 100;
+    }
+  }
+
 bool waybar::modules::Network::_associatedOrJoined(struct nlattr** bss)
 {
     if (!bss[NL80211_BSS_STATUS])

src/modules/workspaces.cpp

@@ -59,7 +59,7 @@ void waybar::modules::Workspaces::_updateThread()
 {
   _thread = new waybar::util::SleeperThread([this] {
     update();
-    _thread->sleep_for(waybar::chrono::milliseconds(250));
+    _thread->sleep_for(waybar::chrono::milliseconds(150));
   });
 }