Merge pull request #3404 from khaneliman/clang-tidy

treewide: clang-tidy

include/AModule.hpp

@@ -14,9 +14,9 @@ class AModule : public IModule {
  public:
   static constexpr const char *MODULE_CLASS = "module";
 
-  virtual ~AModule();
+  ~AModule() override;
   auto update() -> void override;
-  virtual auto refresh(int) -> void{};
+  virtual auto refresh(int shouldRefresh) -> void{};
   operator Gtk::Widget &() override;
   auto doAction(const std::string &name) -> void override;
 
@@ -32,13 +32,13 @@ class AModule : public IModule {
   enum SCROLL_DIR { NONE, UP, DOWN, LEFT, RIGHT };
 
   SCROLL_DIR getScrollDir(GdkEventScroll *e);
-  bool tooltipEnabled();
+  bool tooltipEnabled() const;
 
   const std::string name_;
   const Json::Value &config_;
   Gtk::EventBox event_box_;
 
-  virtual void setCursor(Gdk::CursorType const c);
+  virtual void setCursor(Gdk::CursorType const &c);
 
   virtual bool handleToggle(GdkEventButton *const &ev);
   virtual bool handleMouseEnter(GdkEventCrossing *const &ev);

include/util/backlight_backend.hpp

@@ -56,10 +56,10 @@ class BacklightBackend {
 
   void set_previous_best_device(const BacklightDevice *device);
 
-  void set_brightness(std::string preferred_device, ChangeType change_type, double step);
+  void set_brightness(const std::string &preferred_device, ChangeType change_type, double step);
 
-  void set_scaled_brightness(std::string preferred_device, int brightness);
-  int get_scaled_brightness(std::string preferred_device);
+  void set_scaled_brightness(const std::string &preferred_device, int brightness);
+  int get_scaled_brightness(const std::string &preferred_device);
 
   bool is_login_proxy_initialized() const { return static_cast<bool>(login_proxy_); }
 
@@ -70,7 +70,7 @@ class BacklightBackend {
   std::mutex udev_thread_mutex_;
 
  private:
-  void set_brightness_internal(std::string device_name, int brightness, int max_brightness);
+  void set_brightness_internal(const std::string &device_name, int brightness, int max_brightness);
 
   std::function<void()> on_updated_cb_;
   std::chrono::milliseconds polling_interval_;

include/util/regex_collection.hpp

@@ -5,6 +5,7 @@
 #include <functional>
 #include <regex>
 #include <string>
+#include <utility>
 
 namespace waybar::util {
 
@@ -17,7 +18,7 @@ struct Rule {
   // See https://en.cppreference.com/w/cpp/compiler_support/20 "Parenthesized initialization of
   // aggregates"
   Rule(std::regex rule, std::string repr, int priority)
-      : rule(rule), repr(repr), priority(priority) {}
+      : rule(std::move(rule)), repr(std::move(repr)), priority(priority) {}
 };
 
 int default_priority_function(std::string& key);
@@ -40,8 +41,9 @@ class RegexCollection {
 
  public:
   RegexCollection() = default;
-  RegexCollection(const Json::Value& map, std::string default_repr = "",
-                  std::function<int(std::string&)> priority_function = default_priority_function);
+  RegexCollection(
+      const Json::Value& map, std::string default_repr = "",
+      const std::function<int(std::string&)>& priority_function = default_priority_function);
   ~RegexCollection() = default;
 
   std::string& get(std::string& value, bool& matched_any);

src/AAppIconLabel.cpp

@@ -96,22 +96,22 @@ std::optional<Glib::ustring> getIconName(const std::string& app_identifier,
       return app_identifier;
     }
 
-    const auto app_identifier_desktop = app_identifier + "-desktop";
+    auto app_identifier_desktop = app_identifier + "-desktop";
     if (DefaultGtkIconThemeWrapper::has_icon(app_identifier_desktop)) {
       return app_identifier_desktop;
     }
 
-    const auto first_space = app_identifier.find_first_of(' ');
+    auto first_space = app_identifier.find_first_of(' ');
     if (first_space != std::string::npos) {
-      const auto first_word = toLowerCase(app_identifier.substr(0, first_space));
+      auto first_word = toLowerCase(app_identifier.substr(0, first_space));
       if (DefaultGtkIconThemeWrapper::has_icon(first_word)) {
         return first_word;
       }
     }
 
     const auto first_dash = app_identifier.find_first_of('-');
     if (first_dash != std::string::npos) {
-      const auto first_word = toLowerCase(app_identifier.substr(0, first_dash));
+      auto first_word = toLowerCase(app_identifier.substr(0, first_dash));
       if (DefaultGtkIconThemeWrapper::has_icon(first_word)) {
         return first_word;
       }

src/ALabel.cpp

@@ -71,12 +71,12 @@ ALabel::ALabel(const Json::Value& config, const std::string& name, const std::st
       GtkBuilder* builder = gtk_builder_new();
 
       // Make the GtkBuilder and check for errors in his parsing
-      if (!gtk_builder_add_from_string(builder, fileContent.str().c_str(), -1, nullptr)) {
+      if (gtk_builder_add_from_string(builder, fileContent.str().c_str(), -1, nullptr) == 0U) {
         throw std::runtime_error("Error found in the file " + menuFile);
       }
 
       menu_ = gtk_builder_get_object(builder, "menu");
-      if (!menu_) {
+      if (menu_ == nullptr) {
         throw std::runtime_error("Failed to get 'menu' object from GtkBuilder");
       }
       submenus_ = std::map<std::string, GtkMenuItem*>();
@@ -121,7 +121,7 @@ std::string ALabel::getIcon(uint16_t percentage, const std::string& alt, uint16_
   }
   if (format_icons.isArray()) {
     auto size = format_icons.size();
-    if (size) {
+    if (size != 0U) {
       auto idx = std::clamp(percentage / ((max == 0 ? 100 : max) / size), 0U, size - 1);
       format_icons = format_icons[idx];
     }
@@ -147,7 +147,7 @@ std::string ALabel::getIcon(uint16_t percentage, const std::vector<std::string>&
   }
   if (format_icons.isArray()) {
     auto size = format_icons.size();
-    if (size) {
+    if (size != 0U) {
       auto idx = std::clamp(percentage / ((max == 0 ? 100 : max) / size), 0U, size - 1);
       format_icons = format_icons[idx];
     }

src/AModule.cpp

@@ -8,8 +8,8 @@ namespace waybar {
 
 AModule::AModule(const Json::Value& config, const std::string& name, const std::string& id,
                  bool enable_click, bool enable_scroll)
-    : name_(std::move(name)),
-      config_(std::move(config)),
+    : name_(name),
+      config_(config),
       isTooltip{config_["tooltip"].isBool() ? config_["tooltip"].asBool() : true},
       distance_scrolled_y_(0.0),
       distance_scrolled_x_(0.0) {
@@ -18,12 +18,12 @@ AModule::AModule(const Json::Value& config, const std::string& name, const std::
 
   for (Json::Value::const_iterator it = actions.begin(); it != actions.end(); ++it) {
     if (it.key().isString() && it->isString())
-      if (eventActionMap_.count(it.key().asString()) == 0) {
+      if (!eventActionMap_.contains(it.key().asString())) {
         eventActionMap_.insert({it.key().asString(), it->asString()});
         enable_click = true;
         enable_scroll = true;
       } else
-        spdlog::warn("Dublicate action is ignored: {0}", it.key().asString());
+        spdlog::warn("Duplicate action is ignored: {0}", it.key().asString());
     else
       spdlog::warn("Wrong actions section configuration. See config by index: {}", it.index());
   }
@@ -90,7 +90,7 @@ auto AModule::doAction(const std::string& name) -> void {
   }
 }
 
-void AModule::setCursor(Gdk::CursorType c) {
+void AModule::setCursor(Gdk::CursorType const& c) {
   auto cursor = Gdk::Cursor::create(c);
   auto gdk_window = event_box_.get_window();
   gdk_window->set_cursor(cursor);
@@ -164,7 +164,7 @@ AModule::SCROLL_DIR AModule::getScrollDir(GdkEventScroll* e) {
 
   // ignore reverse-scrolling if event comes from a mouse wheel
   GdkDevice* device = gdk_event_get_source_device((GdkEvent*)e);
-  if (device != NULL && gdk_device_get_source(device) == GDK_SOURCE_MOUSE) {
+  if (device != nullptr && gdk_device_get_source(device) == GDK_SOURCE_MOUSE) {
     reverse = reverse_mouse;
   }
 
@@ -242,7 +242,7 @@ bool AModule::handleScroll(GdkEventScroll* e) {
   return true;
 }
 
-bool AModule::tooltipEnabled() { return isTooltip; }
+bool AModule::tooltipEnabled() const { return isTooltip; }
 
 AModule::operator Gtk::Widget&() { return event_box_; }
 

src/bar.cpp

@@ -72,16 +72,16 @@ void from_json(const Json::Value& j, std::optional<bar_layer>& l) {
 /* Deserializer for struct bar_mode */
 void from_json(const Json::Value& j, bar_mode& m) {
   if (j.isObject()) {
-    if (auto v = j["layer"]; v.isString()) {
+    if (const auto& v = j["layer"]; v.isString()) {
       from_json(v, m.layer);
     }
-    if (auto v = j["exclusive"]; v.isBool()) {
+    if (const auto& v = j["exclusive"]; v.isBool()) {
       m.exclusive = v.asBool();
     }
-    if (auto v = j["passthrough"]; v.isBool()) {
+    if (const auto& v = j["passthrough"]; v.isBool()) {
       m.passthrough = v.asBool();
     }
-    if (auto v = j["visible"]; v.isBool()) {
+    if (const auto& v = j["visible"]; v.isBool()) {
       m.visible = v.asBool();
     }
   }
@@ -118,7 +118,7 @@ Glib::ustring to_string(Gtk::PositionType pos) {
  * Assumes that all the values in the object are deserializable to the same type.
  */
 template <typename Key, typename Value,
-          typename = std::enable_if_t<std::is_convertible<std::string, Key>::value>>
+          typename = std::enable_if_t<std::is_convertible_v<std::string, Key>>>
 void from_json(const Json::Value& j, std::map<Key, Value>& m) {
   if (j.isObject()) {
     for (auto it = j.begin(); it != j.end(); ++it) {
@@ -393,19 +393,18 @@ void waybar::Bar::setPosition(Gtk::PositionType position) {
   }
 }
 
-void waybar::Bar::onMap(GdkEventAny*) {
+void waybar::Bar::onMap(GdkEventAny* /*unused*/) {
   /*
    * Obtain a pointer to the custom layer surface for modules that require it (idle_inhibitor).
    */
-  auto gdk_window = window.get_window()->gobj();
+  auto* gdk_window = window.get_window()->gobj();
   surface = gdk_wayland_window_get_wl_surface(gdk_window);
   configureGlobalOffset(gdk_window_get_width(gdk_window), gdk_window_get_height(gdk_window));
 
   setPassThrough(passthrough_);
 }
 
-void waybar::Bar::setVisible(bool value) {
-  visible = value;
+void waybar::Bar::setVisible(bool visible) {
   if (auto mode = config.get("mode", {}); mode.isString()) {
     setMode(visible ? config["mode"].asString() : MODE_INVISIBLE);
   } else {
@@ -473,7 +472,7 @@ void waybar::Bar::handleSignal(int signal) {
 
 void waybar::Bar::getModules(const Factory& factory, const std::string& pos,
                              waybar::Group* group = nullptr) {
-  auto module_list = group ? config[pos]["modules"] : config[pos];
+  auto module_list = group != nullptr ? config[pos]["modules"] : config[pos];
   if (module_list.isArray()) {
     for (const auto& name : module_list) {
       try {
@@ -485,10 +484,10 @@ void waybar::Bar::getModules(const Factory& factory, const std::string& pos,
           auto id_name = ref.substr(6, hash_pos - 6);
           auto class_name = hash_pos != std::string::npos ? ref.substr(hash_pos + 1) : "";
 
-          auto vertical = (group ? group->getBox().get_orientation() : box_.get_orientation()) ==
-                          Gtk::ORIENTATION_VERTICAL;
+          auto vertical = (group != nullptr ? group->getBox().get_orientation()
+                                            : box_.get_orientation()) == Gtk::ORIENTATION_VERTICAL;
 
-          auto group_module = new waybar::Group(id_name, class_name, config[ref], vertical);
+          auto* group_module = new waybar::Group(id_name, class_name, config[ref], vertical);
           getModules(factory, ref, group_module);
           module = group_module;
         } else {
@@ -497,7 +496,7 @@ void waybar::Bar::getModules(const Factory& factory, const std::string& pos,
 
         std::shared_ptr<AModule> module_sp(module);
         modules_all_.emplace_back(module_sp);
-        if (group) {
+        if (group != nullptr) {
           group->addWidget(*module);
         } else {
           if (pos == "modules-left") {