Add ignore-list param to wlr/taskbar

include/modules/wlr/taskbar.hpp

@@ -8,6 +8,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+#include <unordered_set>
 
 #include <gdk/gdk.h>
 
@@ -61,6 +62,7 @@ class Task
     Gtk::Label text_before_;
     Gtk::Label text_after_;
     bool button_visible_;
+    bool ignored_;
 
     bool with_icon_;
     std::string format_before_;
@@ -132,10 +134,14 @@ class Taskbar : public waybar::AModule
     std::vector<TaskPtr> tasks_;
 
     std::vector<Glib::RefPtr<Gtk::IconTheme>> icon_themes_;
+    std::unordered_set<std::string> ignore_list_;
 
     struct zwlr_foreign_toplevel_manager_v1 *manager_;
     struct wl_seat *seat_;
 
+   protected:
+
+
    public:
     /* Callbacks for global registration */
     void register_manager(struct wl_registry*, uint32_t name, uint32_t version);
@@ -155,6 +161,7 @@ class Taskbar : public waybar::AModule
     bool all_outputs() const;
 
     std::vector<Glib::RefPtr<Gtk::IconTheme>> icon_themes() const;
+    const std::unordered_set<std::string>& ignore_list() const;
 };
 
 } /* namespace waybar::modules::wlr */

man/waybar-wlr-taskbar.5.scd

@@ -68,6 +68,10 @@ Addressed by *wlr/taskbar*
 	typeof: string ++
 	Command to execute when the module is updated.
 
+*ignore-list*: ++
+	typeof: array ++
+	List of app_id to be invisible.
+
 # FORMAT REPLACEMENTS
 
 *{icon}*: The icon of the application.
@@ -98,7 +102,10 @@ Addressed by *wlr/taskbar*
 	"icon-theme": "Numix-Circle",
 	"tooltip-format": "{title}",
 	"on-click": "activate",
-	"on-click-middle": "close"
+	"on-click-middle": "close",
+	"ignore-list": [
+	    "Alacritty"
+	]
 }
 ```
 

src/modules/wlr/taskbar.cpp

@@ -277,7 +277,7 @@ Task::Task(const waybar::Bar &bar, const Json::Value &config, Taskbar *tbar,
     bar_{bar}, config_{config}, tbar_{tbar}, handle_{tl_handle}, seat_{seat},
     id_{global_id++},
     content_{bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0},
-    button_visible_{false}
+    button_visible_{false}, ignored_{false}
 {
     zwlr_foreign_toplevel_handle_v1_add_listener(handle_, &toplevel_handle_impl, this);
 
@@ -383,6 +383,21 @@ void Task::handle_app_id(const char *app_id)
 {
     app_id_ = app_id;
 
+    if (tbar_->ignore_list().count(app_id)) {
+        ignored_ = true;
+        if (button_visible_) {
+          auto output = gdk_wayland_monitor_get_wl_output(bar_.output->monitor->gobj());
+          handle_output_leave(output);
+        }
+    } else {
+        bool is_was_ignored = ignored_;
+        ignored_ = false;
+        if (is_was_ignored) {
+          auto output = gdk_wayland_monitor_get_wl_output(bar_.output->monitor->gobj());
+          handle_output_enter(output);
+        }
+    }
+
     if (!with_icon_)
         return;
 
@@ -405,6 +420,11 @@ void Task::handle_output_enter(struct wl_output *output)
 {
     spdlog::debug("{} entered output {}", repr(), (void*)output);
 
+    if (ignored_) {
+      spdlog::debug("{} is ignored", repr());
+      return;
+    }
+
     if (!button_visible_ && (tbar_->all_outputs() || tbar_->show_output(output))) {
         /* The task entered the output of the current bar make the button visible */
         tbar_->add_button(button_);
@@ -694,6 +714,14 @@ Taskbar::Taskbar(const std::string &id, const waybar::Bar &bar, const Json::Valu
 
         icon_themes_.push_back(it);
     }
+
+    // Load ignore-list
+    if (config_["ignore-list"].isArray()) {
+        for (auto& app_name : config_["ignore-list"]) {
+          ignore_list_.emplace(app_name.asString());
+        }
+    }
+
     icon_themes_.push_back(Gtk::IconTheme::get_default());
 }
 
@@ -829,5 +857,6 @@ std::vector<Glib::RefPtr<Gtk::IconTheme>> Taskbar::icon_themes() const
 {
     return icon_themes_;
 }
+const std::unordered_set<std::string> &Taskbar::ignore_list() const { return ignore_list_; }
 
 } /* namespace waybar::modules::wlr */