dwl/window: add .active styling class for active windows

Author: casKd-dev

include/modules/dwl/window.hpp

@@ -19,6 +19,7 @@ class Window : public AAppIconLabel, public sigc::trackable {
   void handle_layout(const uint32_t layout);
   void handle_title(const char *title);
   void handle_appid(const char *ppid);
+  void handle_active(const uint32_t active);
   void handle_layout_symbol(const char *layout_symbol);
   void handle_frame();
 
@@ -30,6 +31,9 @@ class Window : public AAppIconLabel, public sigc::trackable {
   std::string title_;
   std::string appid_;
   std::string layout_symbol_;
+  bool active_;
+  bool hide_inactive_;
+  bool hide_empty_;
   uint32_t layout_;
 
   struct zdwl_ipc_output_v2 *output_status_;

man/waybar-dwl-window.5.scd

@@ -17,6 +17,16 @@ Addressed by *dwl/window*
 	default: {title} ++
 	The format, how information should be displayed.
 
+*hide-empty*: ++
+	typeof: bool ++
+	default: false ++
+	Option to hide the module when the content would be empty.
+
+*hide-inactive*: ++
+	typeof: bool ++
+	default: false ++
+	Option to hide the module when the window is unfocused.
+
 *rotate*: ++
 	typeof: integer ++
 	Positive value to rotate the text label (in 90 degree increments).
@@ -109,6 +119,10 @@ If no expression matches, the format output is left unchanged.
 
 Invalid expressions (e.g., mismatched parentheses) are skipped.
 
+# STYLE
+
+- *#window.active*
+
 # EXAMPLES
 
 ```

src/modules/dwl/window.cpp

@@ -19,7 +19,7 @@ static void toggle_visibility(void *data, zdwl_ipc_output_v2 *zdwl_output_v2) {
 }
 
 static void active(void *data, zdwl_ipc_output_v2 *zdwl_output_v2, uint32_t active) {
-  // Intentionally empty
+  static_cast<Window *>(data)->handle_active(active);
 }
 
 static void set_tag(void *data, zdwl_ipc_output_v2 *zdwl_output_v2, uint32_t tag, uint32_t state,
@@ -74,7 +74,17 @@ static const wl_registry_listener registry_listener_impl = {.global = handle_glo
                                                             .global_remove = handle_global_remove};
 
 Window::Window(const std::string &id, const Bar &bar, const Json::Value &config)
-    : AAppIconLabel(config, "window", id, "{}", 0, true), bar_(bar) {
+    : AAppIconLabel(config, "window", id, "{}", 0, true),
+      bar_(bar),
+      active_(false),
+      hide_inactive_(false),
+      hide_empty_(false) {
+  if (config_["hide-inactive"].isBool()) {
+    hide_inactive_ = config["hide-inactive"].asBool();
+  }
+  if (config_["hide-empty"].isBool()) {
+    hide_empty_ = config["hide-empty"].asBool();
+  }
   struct wl_display *display = Client::inst()->wl_display;
   struct wl_registry *registry = wl_display_get_registry(display);
 
@@ -102,6 +112,8 @@ void Window::handle_title(const char *title) { title_ = Glib::Markup::escape_tex
 
 void Window::handle_appid(const char *appid) { appid_ = Glib::Markup::escape_text(appid); }
 
+void Window::handle_active(const uint32_t active) { active_ = active != 0; }
+
 void Window::handle_layout_symbol(const char *layout_symbol) {
   layout_symbol_ = Glib::Markup::escape_text(layout_symbol);
 }
@@ -118,6 +130,19 @@ void Window::handle_frame() {
   if (tooltipEnabled()) {
     label_.set_tooltip_text(title_);
   }
+  if (hide_empty_ && title_ == "") {
+      box_.set_visible(false);
+  } else {
+    if (active_) {
+      box_.get_style_context()->add_class("active");
+      box_.set_visible(true);
+    } else {
+      box_.get_style_context()->remove_class("active");
+      if (hide_inactive_) {
+        box_.set_visible(false);
+      }
+    }
+  }
 }
 
 }  // namespace waybar::modules::dwl