From 4d0a7d99ebf55ad2d0e583759699b8b4d77a7907 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Wed, 24 Jul 2024 13:23:55 +0200
Subject: app: move ui code to ui library

---
 ui/CMakeLists.txt                                  |  60 ++++++
 ui/include/turns/ui/widgets/fwd.hpp                |  10 +
 ui/include/turns/ui/widgets/participant_row.hpp    |  49 +++++
 ui/include/turns/ui/widgets/template_widget.hpp    |  64 ++++++
 ui/include/turns/ui/widgets/turn_order_view.hpp    |  36 ++++
 ui/include/turns/ui/windows/fwd.hpp                |  10 +
 ui/include/turns/ui/windows/participant_editor.hpp |  54 +++++
 ui/include/turns/ui/windows/tracker.hpp            |  48 +++++
 ui/res/.gitignore                                  |   1 +
 ui/res/CMakeLists.txt                              |  23 +++
 ui/res/ui.cmb                                      | 223 +++++++++++++++++++++
 ui/src/widgets/participant_row.cpp                 | 133 ++++++++++++
 ui/src/widgets/turn_order_view.cpp                 |  49 +++++
 ui/src/windows/participant_editor.cpp              |  91 +++++++++
 ui/src/windows/tracker.cpp                         | 177 ++++++++++++++++
 ui/tests/widgets/participant_row.cpp               |  24 +++
 ui/tests/windows/participant_editor.cpp            | 111 ++++++++++
 ui/tests/windows/resources.cpp                     |  13 ++
 ui/tests/windows/tracker.cpp                       |  75 +++++++
 19 files changed, 1251 insertions(+)
 create mode 100644 ui/CMakeLists.txt
 create mode 100644 ui/include/turns/ui/widgets/fwd.hpp
 create mode 100644 ui/include/turns/ui/widgets/participant_row.hpp
 create mode 100644 ui/include/turns/ui/widgets/template_widget.hpp
 create mode 100644 ui/include/turns/ui/widgets/turn_order_view.hpp
 create mode 100644 ui/include/turns/ui/windows/fwd.hpp
 create mode 100644 ui/include/turns/ui/windows/participant_editor.hpp
 create mode 100644 ui/include/turns/ui/windows/tracker.hpp
 create mode 100644 ui/res/.gitignore
 create mode 100644 ui/res/CMakeLists.txt
 create mode 100644 ui/res/ui.cmb
 create mode 100644 ui/src/widgets/participant_row.cpp
 create mode 100644 ui/src/widgets/turn_order_view.cpp
 create mode 100644 ui/src/windows/participant_editor.cpp
 create mode 100644 ui/src/windows/tracker.cpp
 create mode 100644 ui/tests/widgets/participant_row.cpp
 create mode 100644 ui/tests/windows/participant_editor.cpp
 create mode 100644 ui/tests/windows/resources.cpp
 create mode 100644 ui/tests/windows/tracker.cpp

(limited to 'ui')

diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
new file mode 100644
index 0000000..e3d8941
--- /dev/null
+++ b/ui/CMakeLists.txt
@@ -0,0 +1,60 @@
+# Library
+
+add_library("ui"
+  "src/widgets/participant_row.cpp"
+  "src/widgets/turn_order_view.cpp"
+  "src/windows/participant_editor.cpp"
+  "src/windows/tracker.cpp"
+
+  $<TARGET_OBJECTS:ui-res>
+)
+
+add_library("turns::ui" ALIAS "ui")
+
+target_compile_options("ui" PUBLIC
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-Wall>"
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-Wextra>"
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-Werror>"
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-pedantic-errors>"
+)
+
+target_include_directories("ui" PUBLIC
+  "include"
+)
+
+target_link_libraries("ui" PUBLIC
+  "turns::core"
+  "turns::lang"
+  "PkgConfig::adwaita"
+  "PkgConfig::gtkmm"
+)
+
+enable_coverage("ui")
+
+# Resources
+
+add_subdirectory("res")
+
+# Tests
+
+add_executable("ui-tests"
+  "tests/widgets/participant_row.cpp"
+  "tests/windows/participant_editor.cpp"
+  "tests/windows/resources.cpp"
+  "tests/windows/tracker.cpp"
+)
+
+target_link_libraries("ui-tests" PRIVATE
+  "Catch2::Catch2"
+  
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-Wl,--whole-archive>"
+  "turns::ui"
+  "$<$<CXX_COMPILER_ID:GNU,Clang>:-Wl,--no-whole-archive>"
+  "turns::gtk-test-main"
+)
+
+target_link_options("ui-tests" PRIVATE
+  "$<$<AND:$<CXX_COMPILER_ID:GNU,Clang>,$<CONFIG:Debug>>:--coverage>"
+)
+
+catch_discover_tests("ui-tests")
diff --git a/ui/include/turns/ui/widgets/fwd.hpp b/ui/include/turns/ui/widgets/fwd.hpp
new file mode 100644
index 0000000..cbb9cae
--- /dev/null
+++ b/ui/include/turns/ui/widgets/fwd.hpp
@@ -0,0 +1,10 @@
+#ifndef TURNS_UI_WIDGETS_FWD_HPP
+#define TURNS_UI_WIDGETS_FWD_HPP
+
+namespace turns::app::widgets
+{
+  struct participant_row;
+  struct turn_order_view;
+}  // namespace turns::app::windows
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/widgets/participant_row.hpp b/ui/include/turns/ui/widgets/participant_row.hpp
new file mode 100644
index 0000000..5564ef4
--- /dev/null
+++ b/ui/include/turns/ui/widgets/participant_row.hpp
@@ -0,0 +1,49 @@
+#ifndef TURNS_APP_WIDGETS_PARTICIPANT_ROW_HPP
+#define TURNS_APP_WIDGETS_PARTICIPANT_ROW_HPP
+
+#include "turns/ui/widgets/template_widget.hpp"
+#include "turns/core/fwd.hpp"
+
+#include <glibmm/property.h>
+#include <glibmm/refptr.h>
+
+#include <gtkmm/button.h>
+#include <gtkmm/label.h>
+#include <gtkmm/listboxrow.h>
+#include <gtkmm/togglebutton.h>
+
+#include <array>
+
+namespace turns::app::widgets
+{
+  struct participant_row : template_widget<participant_row, Gtk::ListBoxRow>
+  {
+    auto constexpr inline static children = std::array{
+        "delete",
+        "edit",
+        "subtitle",
+        "title",
+        "toggle_defeated",
+    };
+
+    participant_row(Glib::RefPtr<core::participant> participant);
+
+    auto property_delete_enabled() -> Glib::PropertyProxy<bool>;
+    auto property_edit_enabled() -> Glib::PropertyProxy<bool>;
+
+  private:
+    auto handle_delete() -> void;
+    auto handle_edit() -> void;
+
+    Gtk::Button * m_delete;
+    Gtk::Button * m_edit;
+    Gtk::Label * m_subtitle;
+    Gtk::Label * m_title;
+    Gtk::ToggleButton * m_toggle_defeated;
+
+    Glib::Property<bool> m_delete_enabled;
+    Glib::Property<bool> m_edit_enabled;
+  };
+}  // namespace turns::app::widgets
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/widgets/template_widget.hpp b/ui/include/turns/ui/widgets/template_widget.hpp
new file mode 100644
index 0000000..5643cb4
--- /dev/null
+++ b/ui/include/turns/ui/widgets/template_widget.hpp
@@ -0,0 +1,64 @@
+#ifndef TURNS_APP_WIDGETS_TEMPLATE_WIDGET_HPP
+#define TURNS_APP_WIDGETS_TEMPLATE_WIDGET_HPP
+
+#include <glibmm/extraclassinit.h>
+#include <glibmm/ustring.h>
+
+#include <gtkmm/widget.h>
+
+#include <gtk/gtk.h>
+
+#include <algorithm>
+#include <utility>
+
+namespace turns::app::widgets
+{
+
+  template<typename CustomWidgetType, typename BaseWidgetType>
+  struct template_widget : Glib::ExtraClassInit,
+                           BaseWidgetType
+  {
+    template<typename... BaseWidgetCtorArgTypes>
+    template_widget(Glib::ustring && resource_path, BaseWidgetCtorArgTypes &&... base_widget_ctor_args)
+        : Glib::ExtraClassInit{class_init, &resource_path, instance_init}
+        , BaseWidgetType{std::forward<BaseWidgetCtorArgTypes>(base_widget_ctor_args)...}
+    {
+    }
+
+  protected:
+    template<typename WidgetType = Gtk::Widget>
+    auto get_widget(char const * name) -> WidgetType *
+    {
+      auto self = static_cast<CustomWidgetType *>(this);
+      auto widget = GTK_WIDGET(self->gobj());
+      auto type = G_OBJECT_TYPE(self->gobj());
+      auto child = GTK_WIDGET(gtk_widget_get_template_child(widget, type, name));
+      g_assert_nonnull(child);
+      return dynamic_cast<WidgetType *>(Glib::wrap(child));
+    }
+
+  private:
+    auto static class_init(void * g_class, void * g_class_data) -> void
+    {
+      g_return_if_fail(GTK_IS_WIDGET_CLASS(g_class));
+
+      auto resource_path = static_cast<Glib::ustring const *>(g_class_data);
+
+      gtk_widget_class_set_template_from_resource(GTK_WIDGET_CLASS(g_class), resource_path->c_str());
+
+      std::ranges::for_each(CustomWidgetType::children, [g_class](auto const & child) {
+        gtk_widget_class_bind_template_child_full(GTK_WIDGET_CLASS(g_class), child, false, 0);
+      });
+    }
+
+    auto static instance_init(GTypeInstance * instance, void * /* type_class */) -> void
+    {
+      g_return_if_fail(GTK_IS_WIDGET(instance));
+
+      gtk_widget_init_template(GTK_WIDGET(instance));
+    }
+  };
+
+}  // namespace turns::app::widgets
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/widgets/turn_order_view.hpp b/ui/include/turns/ui/widgets/turn_order_view.hpp
new file mode 100644
index 0000000..b174ce7
--- /dev/null
+++ b/ui/include/turns/ui/widgets/turn_order_view.hpp
@@ -0,0 +1,36 @@
+#ifndef TURNS_APP_WIDGETS_TURN_ORDER_VIEW_HPP
+#define TURNS_APP_WIDGETS_TURN_ORDER_VIEW_HPP
+
+#include "turns/ui/widgets/template_widget.hpp"
+#include "turns/core/fwd.hpp"
+
+#include <glibmm/object.h>
+#include <glibmm/refptr.h>
+
+#include <gtkmm/listbox.h>
+#include <gtkmm/scrolledwindow.h>
+#include <gtkmm/widget.h>
+
+#include <array>
+
+namespace turns::app::widgets
+{
+  struct turn_order_view : template_widget<turn_order_view, Gtk::ScrolledWindow>
+  {
+    using model_type = core::turn_order;
+
+    auto constexpr inline static children = std::array{
+        "view",
+    };
+
+    explicit turn_order_view(Glib::RefPtr<model_type> model = {});
+
+  private:
+    auto handle_create_row(Glib::RefPtr<Glib::Object> const item) -> Gtk::Widget *;
+
+    Glib::RefPtr<model_type> m_model;
+    Gtk::ListBox * m_view;
+  };
+}  // namespace turns::app::widgets
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/windows/fwd.hpp b/ui/include/turns/ui/windows/fwd.hpp
new file mode 100644
index 0000000..95d9acd
--- /dev/null
+++ b/ui/include/turns/ui/windows/fwd.hpp
@@ -0,0 +1,10 @@
+#ifndef TURNS_UI_WINDOWS_FWD_HPP
+#define TURNS_UI_WINDOWS_FWD_HPP
+
+namespace turns::app::windows
+{
+  struct participant_editor;
+  struct tracker;
+}  // namespace turns::app::windows
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/windows/participant_editor.hpp b/ui/include/turns/ui/windows/participant_editor.hpp
new file mode 100644
index 0000000..1fa42bb
--- /dev/null
+++ b/ui/include/turns/ui/windows/participant_editor.hpp
@@ -0,0 +1,54 @@
+#ifndef TURNS_APP_WINDOWS_PARTICIPANT_EDITOR_HPP
+#define TURNS_APP_WINDOWS_PARTICIPANT_EDITOR_HPP
+
+#include "turns/core/fwd.hpp"
+
+#include <sigc++/signal.h>
+
+#include <glibmm/refptr.h>
+#include <glibmm/ustring.h>
+
+#include <gtkmm/builder.h>
+#include <gtkmm/button.h>
+#include <gtkmm/listitem.h>
+#include <gtkmm/signallistitemfactory.h>
+#include <gtkmm/stringlist.h>
+#include <gtkmm/widget.h>
+
+#include <adwaita.h>
+
+namespace turns::app::windows
+{
+
+  struct participant_editor : Gtk::Widget
+  {
+    using signal_finished_type = sigc::signal<void (Glib::ustring, float, core::disposition)>;
+
+    participant_editor(BaseObjectType * base, Glib::RefPtr<Gtk::Builder> const builder, Glib::RefPtr<core::participant> obj = {});
+
+    auto present(Gtk::Widget * parent) -> void;
+
+    auto signal_finished() -> signal_finished_type;
+
+  private:
+    auto handle_finish_clicked() -> void;
+    auto handle_item_bind(Glib::RefPtr<Gtk::ListItem> item) -> void;
+    auto handle_item_setup(Glib::RefPtr<Gtk::ListItem> item) -> void;
+
+    AdwDialog * m_adw;
+    AdwComboRow * m_disposition;
+    Gtk::Button * m_finish;
+    AdwEntryRow * m_name;
+    AdwSpinRow * m_priority;
+
+    Glib::RefPtr<Gtk::SignalListItemFactory> m_disposition_factory;
+    Glib::RefPtr<Gtk::StringList> m_disposition_model;
+
+    Glib::RefPtr<core::participant> m_participant;
+
+    signal_finished_type m_signal_finished{};
+  };
+
+}  // namespace turns::app::windows
+
+#endif
\ No newline at end of file
diff --git a/ui/include/turns/ui/windows/tracker.hpp b/ui/include/turns/ui/windows/tracker.hpp
new file mode 100644
index 0000000..4af7c43
--- /dev/null
+++ b/ui/include/turns/ui/windows/tracker.hpp
@@ -0,0 +1,48 @@
+#ifndef TURNS_APP_WINDOWS_TRACKER_HPP
+#define TURNS_APP_WINDOWS_TRACKER_HPP
+
+#include "turns/ui/widgets/turn_order_view.hpp"
+#include "turns/core/turn_order.hpp"
+
+#include <glibmm/refptr.h>
+#include <glibmm/ustring.h>
+#include <glibmm/variant.h>
+
+#include <gtkmm/applicationwindow.h>
+#include <gtkmm/builder.h>
+#include <gtkmm/button.h>
+#include <gtkmm/revealer.h>
+#include <gtkmm/stack.h>
+#include <gtkmm/widget.h>
+
+#include <adwaita.h>
+
+namespace turns::app::windows
+{
+
+  struct tracker : Gtk::ApplicationWindow
+  {
+    tracker(BaseObjectType * base, Glib::RefPtr<Gtk::Builder> const builder);
+
+  private:
+    auto handle_add_participant() -> void;
+    auto handle_delete_participant(Glib::VariantBase param) -> void;
+    auto handle_edit_participant(Glib::VariantBase param) -> void;
+    auto handle_stop() -> void;
+
+    auto setup_actions() -> void;
+
+    AdwApplicationWindow * m_adw;
+    Gtk::Revealer * m_controls;
+    Gtk::Widget * m_empty;
+    Gtk::Stack * m_stack;
+    Gtk::Button * m_start;
+    AdwWindowTitle * m_title;
+    Glib::RefPtr<core::turn_order> m_turn_order;
+    widgets::turn_order_view * m_turn_order_view;
+    Glib::PropertyProxy<Glib::ustring> m_subtitle;
+  };
+
+}  // namespace turns::app::windows
+
+#endif
\ No newline at end of file
diff --git a/ui/res/.gitignore b/ui/res/.gitignore
new file mode 100644
index 0000000..25284c2
--- /dev/null
+++ b/ui/res/.gitignore
@@ -0,0 +1 @@
+*.ui
\ No newline at end of file
diff --git a/ui/res/CMakeLists.txt b/ui/res/CMakeLists.txt
new file mode 100644
index 0000000..94d41ef
--- /dev/null
+++ b/ui/res/CMakeLists.txt
@@ -0,0 +1,23 @@
+add_library("ui-res" OBJECT)
+
+target_link_libraries("ui-res" PRIVATE
+  "PkgConfig::giomm"
+)
+
+set(UI_FILES
+  "widgets/participant_row.ui"
+  "widgets/turn_order_view.ui"
+  "windows/participant_editor.ui"
+  "windows/tracker.ui"
+)
+
+export_cambalache_files("ui.cmb"
+  UI_FILES ${UI_FILES}
+)
+
+target_add_glib_resources("ui-res"
+  PREFIX "/"
+  UI_FILES ${UI_FILES}
+)
+
+enable_coverage("ui-res")
\ No newline at end of file
diff --git a/ui/res/ui.cmb b/ui/res/ui.cmb
new file mode 100644
index 0000000..f3cc8e8
--- /dev/null
+++ b/ui/res/ui.cmb
@@ -0,0 +1,223 @@
+<?xml version='1.0' encoding='UTF-8' standalone='no'?>
+<!DOCTYPE cambalache-project SYSTEM "cambalache-project.dtd">
+<cambalache-project version="0.17.3" target_tk="gtk-4.0">
+  <ui>
+	(1,None,None,"windows/tracker.ui",None,None,None,None,None,None,None),
+	(2,None,None,"windows/participant_editor.ui",None,None,None,None,None,None,None),
+	(3,1,None,"widgets/participant_row.ui",None,None,None,None,None,None,None),
+	(4,1,None,"widgets/turn_order_view.ui",None,None,None,None,None,None,None)
+  </ui>
+  <ui_library>
+	(1,"gtk","4.14",None),
+	(1,"libadwaita","1.5",None),
+	(2,"gtk","4.14",None),
+	(2,"libadwaita","1.5",None),
+	(3,"gtk","4.14",None)
+  </ui_library>
+  <object>
+	(1,1,"AdwApplicationWindow","tracker",None,None,None,None,-1,None,None),
+	(1,2,"AdwToolbarView",None,1,None,None,None,-1,None,None),
+	(1,3,"AdwHeaderBar","header",2,None,"top",None,-1,None,None),
+	(1,6,"AdwWindowTitle","title",3,None,None,None,3,None,None),
+	(1,7,"GtkMenuButton","open_main_menu",3,None,"end",None,None,None,None),
+	(1,8,"GtkButton","add_participant",3,None,"start",None,1,None,None),
+	(1,9,"(menu)","main_menu",None,None,None,None,-1,None,None),
+	(1,10,"(item)",None,9,None,None,None,1,None,None),
+	(1,11,"GtkStack","stack",2,None,None,None,-1,None,None),
+	(1,16,"AdwStatusPage","empty",11,None,None,None,-1,None,None),
+	(1,17,"GtkButton",None,16,None,None,None,-1,None,None),
+	(1,18,"GtkButton","start",3,None,"start",None,2,None,None),
+	(1,19,"(item)",None,9,None,None,None,None,None,None),
+	(1,20,"GtkRevealer","controls",2,None,"bottom",None,-1,None,None),
+	(1,21,"GtkActionBar",None,20,None,None,None,-1,None,None),
+	(1,22,"GtkButton",None,21,None,"start",None,-1,None,None),
+	(1,23,"GtkButton",None,21,None,"center",None,-1,None,None),
+	(1,24,"GtkButton",None,21,None,"end",None,-1,None,None),
+	(2,1,"AdwDialog","participant_editor",None,None,None,None,-1,None,None),
+	(2,2,"AdwToolbarView",None,1,None,None,None,-1,None,None),
+	(2,3,"AdwHeaderBar",None,2,None,"top",None,-1,None,None),
+	(2,4,"AdwClamp",None,2,None,None,None,-1,None,None),
+	(2,5,"GtkBox",None,4,None,None,None,-1,None,None),
+	(2,6,"GtkListBox",None,5,None,None,None,None,None,None),
+	(2,7,"AdwEntryRow","name",6,None,None,None,None,None,None),
+	(2,9,"GtkButton","finish",5,None,None,None,1,None,None),
+	(2,10,"AdwSpinRow","priority",6,None,None,None,1,None,None),
+	(2,11,"AdwComboRow","disposition",6,None,None,None,2,None,None),
+	(2,12,"GtkAdjustment",None,10,None,None,None,-1,None,None),
+	(3,1,"GtkListBoxRow","gtkmm__CustomObject_participant_row",None,None,None,None,-1,None,None),
+	(3,2,"GtkBox",None,1,None,None,None,-1,None,None),
+	(3,3,"GtkBox",None,2,None,None,None,-1,None,None),
+	(3,4,"GtkBox",None,2,None,None,None,-1,None,None),
+	(3,5,"GtkBox",None,2,None,None,None,-1,None,None),
+	(3,6,"GtkToggleButton","toggle_defeated",3,None,None,None,-1,None,None),
+	(3,7,"GtkLabel","title",4,None,None,None,-1,None,None),
+	(3,8,"GtkLabel","subtitle",4,None,None,None,-1,None,None),
+	(3,9,"GtkButton","delete",5,None,None,None,-1,None,None),
+	(3,10,"GtkButton","edit",5,None,None,None,-1,None,None),
+	(4,1,"GtkScrolledWindow","gtkmm__CustomObject_turn_order_view",None,None,None,None,-1,None,None),
+	(4,2,"AdwClamp",None,1,None,None,None,-1,None,None),
+	(4,3,"GtkListBox","view",2,None,None,None,-1,None,None)
+  </object>
+  <object_property>
+	(1,1,"AdwApplicationWindow","content",None,None,None,None,None,2,None,None,None,None),
+	(1,1,"GtkWidget","height-request","480",None,None,None,None,None,None,None,None,None),
+	(1,1,"GtkWidget","width-request","360",None,None,None,None,None,None,None,None,None),
+	(1,1,"GtkWindow","default-height","720",None,None,None,None,None,None,None,None,None),
+	(1,1,"GtkWindow","default-width","360",None,None,None,None,None,None,None,None,None),
+	(1,2,"AdwToolbarView","content",None,None,None,None,None,11,None,None,None,None),
+	(1,3,"AdwHeaderBar","title-widget",None,None,None,None,None,6,None,None,None,None),
+	(1,6,"AdwWindowTitle","subtitle","No active turn order",1,None,None,None,None,None,None,None,None),
+	(1,6,"AdwWindowTitle","title","Turns",1,None,None,None,None,None,None,None,None),
+	(1,7,"GtkMenuButton","icon-name","open-menu",None,None,None,None,None,None,None,None,None),
+	(1,7,"GtkMenuButton","menu-model","9",None,None,None,None,None,None,None,None,None),
+	(1,7,"GtkWidget","tooltip-text","Main Menu",1,None,None,None,None,None,None,None,None),
+	(1,8,"GtkActionable","action-name","win.add_participant",None,None,None,None,None,None,None,None,None),
+	(1,8,"GtkButton","icon-name","contact-new",None,None,None,None,None,None,None,None,None),
+	(1,8,"GtkWidget","tooltip-text","Add participant",1,None,None,None,None,None,None,None,None),
+	(1,10,"(item)","action","app.quit",None,None,None,None,None,None,None,None,None),
+	(1,10,"(item)","label","_Quit",1,None,None,None,None,None,None,None,None),
+	(1,11,"GtkStack","transition-type","crossfade",None,None,None,None,None,None,None,None,None),
+	(1,16,"AdwStatusPage","child",None,None,None,None,None,17,None,None,None,None),
+	(1,16,"AdwStatusPage","icon-name","contact-new-symbolic",None,None,None,None,None,None,None,None,None),
+	(1,17,"GtkActionable","action-name","win.add_participant",None,None,None,None,None,None,None,None,None),
+	(1,17,"GtkButton","label","Add participant",1,None,None,None,None,None,None,None,None),
+	(1,17,"GtkWidget","halign","center",None,None,None,None,None,None,None,None,None),
+	(1,18,"GtkActionable","action-name","win.start",None,None,None,None,None,None,None,None,None),
+	(1,18,"GtkButton","icon-name","media-playback-start-symbolic",None,None,None,None,None,None,None,None,None),
+	(1,18,"GtkWidget","tooltip-text","Start turn order",1,None,None,None,None,None,None,None,None),
+	(1,19,"(item)","action","win.clear",None,None,None,None,None,None,None,None,None),
+	(1,19,"(item)","label","_Clear",1,None,None,None,None,None,None,None,None),
+	(1,20,"GtkRevealer","child",None,None,None,None,None,21,None,None,None,None),
+	(1,20,"GtkRevealer","transition-type","slide-up",None,None,None,None,None,None,None,None,None),
+	(1,22,"GtkActionable","action-name","win.previous",None,None,None,None,None,None,None,None,None),
+	(1,22,"GtkButton","icon-name","media-skip-backward-symbolic",None,None,None,None,None,None,None,None,None),
+	(1,22,"GtkWidget","tooltip-markup","Previous participant",1,None,None,None,None,None,None,None,None),
+	(1,23,"GtkActionable","action-name","win.stop",None,None,None,None,None,None,None,None,None),
+	(1,23,"GtkButton","icon-name","media-playback-stop-symbolic",None,None,None,None,None,None,None,None,None),
+	(1,23,"GtkWidget","tooltip-markup","End turn order",1,None,None,None,None,None,None,None,None),
+	(1,24,"GtkActionable","action-name","win.next",None,None,None,None,None,None,None,None,None),
+	(1,24,"GtkButton","icon-name","media-skip-forward-symbolic",None,None,None,None,None,None,None,None,None),
+	(1,24,"GtkWidget","tooltip-markup","Next participant",1,None,None,None,None,None,None,None,None),
+	(2,1,"AdwDialog","child",None,None,None,None,None,2,None,None,None,None),
+	(2,1,"AdwDialog","default-widget",None,None,None,None,None,None,None,None,None,None),
+	(2,1,"GtkWidget","hexpand","True",None,None,None,None,None,None,None,None,None),
+	(2,2,"AdwToolbarView","content",None,None,None,None,None,4,None,None,None,None),
+	(2,4,"AdwClamp","child",None,None,None,None,None,5,None,None,None,None),
+	(2,5,"GtkBox","spacing","18",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkOrientable","orientation","vertical",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","hexpand","True",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","margin-bottom","18",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","margin-end","12",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","margin-start","12",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","margin-top","18",None,None,None,None,None,None,None,None,None),
+	(2,5,"GtkWidget","valign","start",None,None,None,None,None,None,None,None,None),
+	(2,7,"AdwPreferencesRow","title","Name",1,None,None,None,None,None,None,None,None),
+	(2,9,"GtkButton","label","Finish",1,None,None,None,None,None,None,None,None),
+	(2,9,"GtkWidget","hexpand","True",None,None,None,None,None,None,None,None,None),
+	(2,10,"AdwPreferencesRow","title","Priority",1,None,None,None,None,None,None,None,None),
+	(2,10,"AdwSpinRow","adjustment",None,None,None,None,None,12,None,None,None,None),
+	(2,10,"AdwSpinRow","digits","1",None,None,None,None,None,None,None,None,None),
+	(2,10,"AdwSpinRow","numeric","True",None,None,None,None,None,None,None,None,None),
+	(2,11,"AdwPreferencesRow","title","Disposition",1,None,None,None,None,None,None,None,None),
+	(2,12,"GtkAdjustment","lower","-1000.0",None,None,None,None,None,None,None,None,None),
+	(2,12,"GtkAdjustment","step-increment","1.0",None,None,None,None,None,None,None,None,None),
+	(2,12,"GtkAdjustment","upper","1000.0",None,None,None,None,None,None,None,None,None),
+	(3,1,"GtkListBoxRow","activatable","False",None,None,None,None,None,None,None,None,None),
+	(3,1,"GtkListBoxRow","child",None,None,None,None,None,2,None,None,None,None),
+	(3,1,"GtkListBoxRow","selectable","False",None,None,None,None,None,None,None,None,None),
+	(3,1,"GtkWidget","valign","center",None,None,None,None,None,None,None,None,None),
+	(3,4,"GtkOrientable","orientation","vertical",None,None,None,None,None,None,None,None,None),
+	(3,4,"GtkWidget","hexpand","True",None,None,None,None,None,None,None,None,None),
+	(3,4,"GtkWidget","valign","center",None,None,None,None,None,None,None,None,None),
+	(3,5,"GtkWidget","valign","center",None,None,None,None,None,None,None,None,None),
+	(3,6,"GtkButton","icon-name","face-smile-symbolic",None,None,None,None,None,None,None,None,None),
+	(3,6,"GtkWidget","halign","center",None,None,None,None,None,None,None,None,None),
+	(3,6,"GtkWidget","tooltip-text","Mark as defeated",1,None,None,None,None,None,None,None,None),
+	(3,6,"GtkWidget","valign","center",None,None,None,None,None,None,None,None,None),
+	(3,7,"GtkLabel","wrap-mode","word-char",None,None,None,None,None,None,None,None,None),
+	(3,7,"GtkLabel","xalign","0.0",None,None,None,None,None,None,None,None,None),
+	(3,8,"GtkLabel","wrap-mode","word-char",None,None,None,None,None,None,None,None,None),
+	(3,8,"GtkLabel","xalign","0.0",None,None,None,None,None,None,None,None,None),
+	(3,9,"GtkButton","icon-name","edit-delete-symbolic",None,None,None,None,None,None,None,None,None),
+	(3,9,"GtkWidget","tooltip-text","Delete participant",1,None,None,None,None,None,None,None,None),
+	(3,10,"GtkButton","icon-name","document-edit-symbolic",None,None,None,None,None,None,None,None,None),
+	(3,10,"GtkWidget","tooltip-text","Edit participant",1,None,None,None,None,None,None,None,None),
+	(4,1,"GtkScrolledWindow","child",None,None,None,None,None,2,None,None,None,None),
+	(4,2,"AdwClamp","child",None,None,None,None,None,3,None,None,None,None),
+	(4,2,"GtkWidget","margin-bottom","18",None,None,None,None,None,None,None,None,None),
+	(4,2,"GtkWidget","margin-end","12",None,None,None,None,None,None,None,None,None),
+	(4,2,"GtkWidget","margin-start","12",None,None,None,None,None,None,None,None,None),
+	(4,2,"GtkWidget","margin-top","12",None,None,None,None,None,None,None,None,None),
+	(4,3,"GtkWidget","valign","start",None,None,None,None,None,None,None,None,None)
+  </object_property>
+  <object_data>
+	(1,1,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,3,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,2,"GtkWidget",1,1,None,None,None,None,None,None),
+	(2,6,"GtkWidget",1,1,None,None,None,None,None,None),
+	(2,6,"GtkWidget",2,2,None,1,None,None,None,None),
+	(2,9,"GtkWidget",1,1,None,None,None,None,None,None),
+	(2,9,"GtkWidget",2,2,None,1,None,None,None,None),
+	(2,9,"GtkWidget",2,3,None,1,None,None,None,None),
+	(1,17,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,17,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,17,"GtkWidget",2,3,None,1,None,None,None,None),
+	(3,6,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,6,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,2,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,2,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,7,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,7,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,8,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,8,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,9,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,9,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,10,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,10,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,9,"GtkWidget",2,3,None,1,None,None,None,None),
+	(3,10,"GtkWidget",2,3,None,1,None,None,None,None),
+	(3,5,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,5,"GtkWidget",2,2,None,1,None,None,None,None),
+	(3,3,"GtkWidget",1,1,None,None,None,None,None,None),
+	(3,3,"GtkWidget",2,2,None,1,None,None,None,None),
+	(4,3,"GtkWidget",1,1,None,None,None,None,None,None),
+	(4,3,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,22,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,22,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,22,"GtkWidget",2,3,None,1,None,None,None,None),
+	(1,23,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,23,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,23,"GtkWidget",2,3,None,1,None,None,None,None),
+	(1,24,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,24,"GtkWidget",2,2,None,1,None,None,None,None),
+	(1,24,"GtkWidget",2,3,None,1,None,None,None,None),
+	(1,21,"GtkWidget",1,1,None,None,None,None,None,None),
+	(1,21,"GtkWidget",2,2,None,1,None,None,None,None)
+  </object_data>
+  <object_data_arg>
+	(1,1,"GtkWidget",2,2,"name","background"),
+	(2,6,"GtkWidget",2,2,"name","boxed-list"),
+	(2,9,"GtkWidget",2,2,"name","pill"),
+	(2,9,"GtkWidget",2,3,"name","suggested-action"),
+	(1,17,"GtkWidget",2,2,"name","pill"),
+	(1,17,"GtkWidget",2,3,"name","suggested-action"),
+	(3,6,"GtkWidget",2,2,"name","circular"),
+	(3,2,"GtkWidget",2,2,"name","header"),
+	(3,7,"GtkWidget",2,2,"name","title"),
+	(3,8,"GtkWidget",2,2,"name","subtitle"),
+	(3,9,"GtkWidget",2,2,"name","circular"),
+	(3,10,"GtkWidget",2,2,"name","circular"),
+	(3,9,"GtkWidget",2,3,"name","destructive-action"),
+	(3,10,"GtkWidget",2,3,"name","suggested-action"),
+	(3,5,"GtkWidget",2,2,"name","suffixes"),
+	(3,3,"GtkWidget",2,2,"name","prefixes"),
+	(4,3,"GtkWidget",2,2,"name","boxed-list"),
+	(1,22,"GtkWidget",2,2,"name","pill"),
+	(1,22,"GtkWidget",2,3,"name","suggested-action"),
+	(1,23,"GtkWidget",2,2,"name","pill"),
+	(1,23,"GtkWidget",2,3,"name","destructive-action"),
+	(1,24,"GtkWidget",2,2,"name","pill"),
+	(1,24,"GtkWidget",2,3,"name","suggested-action"),
+	(1,21,"GtkWidget",2,2,"name","toolbar")
+  </object_data_arg>
+</cambalache-project>
diff --git a/ui/src/widgets/participant_row.cpp b/ui/src/widgets/participant_row.cpp
new file mode 100644
index 0000000..3e058b2
--- /dev/null
+++ b/ui/src/widgets/participant_row.cpp
@@ -0,0 +1,133 @@
+#include "turns/ui/widgets/participant_row.hpp"
+
+#include "turns/core/disposition.hpp"
+#include "turns/core/participant.hpp"
+#include "turns/lang/messages.hpp"
+
+#include <glibmm/binding.h>
+#include <glibmm/i18n.h>
+#include <glibmm/ustring.h>
+#include <glibmm/variant.h>
+
+#include <algorithm>
+#include <format>
+
+namespace turns::app::widgets
+{
+  namespace
+  {
+    auto constexpr static TYPE_NAME = "participant_row";
+    auto constexpr static TEMPLATE = "/widgets/participant_row.ui";
+
+    auto css_class_for(core::disposition value) -> Glib::ustring
+    {
+      switch (value)
+      {
+      case core::disposition::friendly:
+        return "disposition-friendly";
+      case core::disposition::hostile:
+        return "disposition-hostile";
+      case core::disposition::secret:
+        return "disposition-secret";
+      default:
+        return "";
+      }
+    }
+  }  // namespace
+
+  participant_row::participant_row(Glib::RefPtr<core::participant> participant)
+      : Glib::ObjectBase(TYPE_NAME)
+      , template_widget<participant_row, Gtk::ListBoxRow>{TEMPLATE}
+      , m_delete{get_widget<Gtk::Button>("delete")}
+      , m_edit{get_widget<Gtk::Button>("edit")}
+      , m_subtitle{get_widget<Gtk::Label>("subtitle")}
+      , m_title{get_widget<Gtk::Label>("title")}
+      , m_toggle_defeated{get_widget<Gtk::ToggleButton>("toggle_defeated")}
+      , m_delete_enabled{*this, "delete-enabled", true}
+      , m_edit_enabled{*this, "edit-enabled", true}
+
+  {
+    m_delete->signal_clicked().connect(sigc::mem_fun(*this, &participant_row::handle_delete));
+    m_edit->signal_clicked().connect(sigc::mem_fun(*this, &participant_row::handle_edit));
+
+    Glib::Binding::bind_property(m_subtitle->property_label(),
+                                 m_subtitle->property_visible(),
+                                 Glib::Binding::Flags::DEFAULT,
+                                 sigc::mem_fun(&Glib::ustring::size));
+    Glib::Binding::bind_property(m_title->property_label(),
+                                 m_title->property_visible(),
+                                 Glib::Binding::Flags::INVERT_BOOLEAN,
+                                 sigc::mem_fun(&Glib::ustring::size));
+    Glib::Binding::bind_property(m_toggle_defeated->property_active(),
+                                 m_toggle_defeated->property_icon_name(),
+                                 Glib::Binding::Flags::SYNC_CREATE,
+                                 [](auto active) { return active ? "face-sick-symbolic" : "face-smile-symbolic"; });
+
+    // clang-format off
+    Glib::Binding::bind_property(property_delete_enabled(),
+                                 m_delete->property_sensitive(),
+                                 Glib::Binding::Flags::SYNC_CREATE);
+    Glib::Binding::bind_property(property_edit_enabled(),
+                                 m_edit->property_sensitive(),
+                                 Glib::Binding::Flags::SYNC_CREATE);
+    // clang-format on
+
+    if (participant)
+    {
+      Glib::Binding::bind_property(participant->name(), m_title->property_label(), Glib::Binding::Flags::SYNC_CREATE);
+
+      Glib::Binding::bind_property(participant->priority(), m_subtitle->property_label(), Glib::Binding::Flags::SYNC_CREATE, [](auto n) {
+        return std::vformat(_(lang::priority_number), std::make_format_args(n));
+      });
+
+      Glib::Binding::bind_property(participant->disposition(),
+                                   m_toggle_defeated->property_css_classes(),
+                                   Glib::Binding::Flags::SYNC_CREATE,
+                                   [this](auto value) {
+        auto classes = m_toggle_defeated->get_css_classes();
+        auto removed = std::ranges::remove_if(classes, [](auto cls) {
+          return (cls == "disposition-friendly") | (cls == "disposition-hostile") || (cls == "disposition-secret");
+        });
+        classes.erase(removed.begin(), removed.end());
+        classes.push_back(css_class_for(value));
+        return classes;
+      });
+
+      Glib::Binding::bind_property(participant->is_active(), property_css_classes(), Glib::Binding::Flags::SYNC_CREATE, [this](auto value) {
+        auto classes = get_css_classes();
+        if (!value)
+        {
+          std::erase(classes, "active-participant");
+        }
+        else
+        {
+          classes.push_back("active-participant");
+        }
+        return classes;
+      });
+    }
+  }
+
+  auto participant_row::property_delete_enabled() -> Glib::PropertyProxy<bool>
+  {
+    return m_delete_enabled.get_proxy();
+  }
+
+  auto participant_row::property_edit_enabled() -> Glib::PropertyProxy<bool>
+  {
+    return m_edit_enabled.get_proxy();
+  }
+
+  auto participant_row::handle_delete() -> void
+  {
+    auto index = Glib::Variant<int>::create(get_index());
+    activate_action("win.delete", index);
+  }
+
+  auto participant_row::handle_edit() -> void
+  {
+    auto index = Glib::Variant<int>::create(get_index());
+    activate_action("win.edit", index);
+  }
+
+}  // namespace turns::app::widgets
\ No newline at end of file
diff --git a/ui/src/widgets/turn_order_view.cpp b/ui/src/widgets/turn_order_view.cpp
new file mode 100644
index 0000000..9456cbe
--- /dev/null
+++ b/ui/src/widgets/turn_order_view.cpp
@@ -0,0 +1,49 @@
+#include "turns/ui/widgets/turn_order_view.hpp"
+
+#include "turns/ui/widgets/participant_row.hpp"
+#include "turns/core/participant.hpp"
+#include "turns/core/turn_order.hpp"
+
+#include <sigc++/functors/mem_fun.h>
+
+#include <glibmm/binding.h>
+
+#include <memory>
+
+namespace turns::app::widgets
+{
+  namespace
+  {
+    auto constexpr static TYPE_NAME = "turn_order_view";
+    auto constexpr static TEMPLATE = "/widgets/turn_order_view.ui";
+  }  // namespace
+
+  turn_order_view::turn_order_view(Glib::RefPtr<model_type> model)
+      : Glib::ObjectBase(TYPE_NAME)
+      , template_widget<turn_order_view, Gtk::ScrolledWindow>{TEMPLATE}
+      , m_model{model}
+      , m_view{get_widget<Gtk::ListBox>("view")}
+  {
+    if (model)
+    {
+      m_view->bind_model(m_model, sigc::mem_fun(*this, &turn_order_view::handle_create_row));
+    }
+  }
+
+  auto turn_order_view::handle_create_row(Glib::RefPtr<Glib::Object> const item) -> Gtk::Widget *
+  {
+    auto participant = std::dynamic_pointer_cast<core::participant>(item);
+    auto row = Gtk::make_managed<widgets::participant_row>(participant);
+
+    Glib::Binding::bind_property(m_model->is_running(),
+                                 row->property_delete_enabled(),
+                                 Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+
+    Glib::Binding::bind_property(m_model->is_running(),
+                                 row->property_edit_enabled(),
+                                 Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+
+    return row;
+  }
+
+}  // namespace turns::app::widgets
\ No newline at end of file
diff --git a/ui/src/windows/participant_editor.cpp b/ui/src/windows/participant_editor.cpp
new file mode 100644
index 0000000..ec31c68
--- /dev/null
+++ b/ui/src/windows/participant_editor.cpp
@@ -0,0 +1,91 @@
+#include "turns/ui/windows/participant_editor.hpp"
+
+#include "turns/core/disposition.hpp"
+#include "turns/core/participant.hpp"
+#include "turns/lang/messages.hpp"
+
+#include <glibmm/i18n.h>
+
+#include <gtkmm/editable.h>
+#include <gtkmm/label.h>
+#include <gtkmm/listboxrow.h>
+#include <gtkmm/stringobject.h>
+
+#include <ranges>
+
+namespace turns::app::windows
+{
+
+  participant_editor::participant_editor(BaseObjectType * base, Glib::RefPtr<Gtk::Builder> const builder, Glib::RefPtr<core::participant> obj)
+      : Gtk::Widget{base}
+      , m_adw{ADW_DIALOG(gobj())}
+      , m_disposition{ADW_COMBO_ROW(builder->get_widget<Gtk::ListBoxRow>("disposition")->gobj())}
+      , m_finish{builder->get_widget<Gtk::Button>("finish")}
+      , m_name{ADW_ENTRY_ROW(builder->get_widget<Gtk::ListBoxRow>("name")->gobj())}
+      , m_priority{ADW_SPIN_ROW(builder->get_widget<Gtk::ListBoxRow>("priority")->gobj())}
+      , m_disposition_factory{Gtk::SignalListItemFactory::create()}
+      , m_disposition_model{Gtk::StringList::create()}
+      , m_participant{obj}
+
+  {
+    adw_dialog_set_title(m_adw, _(obj ? lang::edit_participant : lang::add_participant));
+    m_finish->signal_clicked().connect(sigc::mem_fun(*this, &participant_editor::handle_finish_clicked));
+
+    for (auto n : std::views::iota(std::uint8_t{}, static_cast<std::uint8_t>(core::disposition::END)))
+    {
+      m_disposition_model->append(presentation_name_for(core::disposition{n}));
+    }
+
+    m_disposition_factory->signal_bind().connect(sigc::mem_fun(*this, &participant_editor::handle_item_bind));
+    m_disposition_factory->signal_setup().connect(sigc::mem_fun(*this, &participant_editor::handle_item_setup));
+
+    adw_combo_row_set_factory(m_disposition, GTK_LIST_ITEM_FACTORY(m_disposition_factory->gobj()));
+    adw_combo_row_set_model(m_disposition, G_LIST_MODEL(m_disposition_model->gobj()));
+
+    if (m_participant)
+    {
+      gtk_editable_set_text(GTK_EDITABLE(m_name), m_participant->name().get_value().c_str());
+      adw_spin_row_set_value(m_priority, m_participant->priority());
+      adw_combo_row_set_selected(m_disposition, static_cast<unsigned>(m_participant->disposition().get_value()));
+    }
+  }
+
+  auto participant_editor::present(Gtk::Widget * parent) -> void
+  {
+    adw_dialog_present(m_adw, parent->gobj());
+  }
+
+  auto participant_editor::signal_finished() -> signal_finished_type
+  {
+    return m_signal_finished;
+  }
+
+  auto participant_editor::handle_finish_clicked() -> void
+  {
+    auto name = gtk_editable_get_text(GTK_EDITABLE(m_name));
+    auto priority = adw_spin_row_get_value(m_priority);
+    auto disposition = static_cast<core::disposition>(adw_combo_row_get_selected(m_disposition));
+
+    if (m_participant)
+    {
+      m_participant->name() = name;
+      m_participant->priority() = priority;
+      m_participant->disposition() = disposition;
+    }
+
+    m_signal_finished.emit(name, priority, disposition);
+    adw_dialog_close(m_adw);
+  }
+
+  auto participant_editor::handle_item_bind(Glib::RefPtr<Gtk::ListItem> item) -> void
+  {
+    auto value = std::dynamic_pointer_cast<Gtk::StringObject>(item->get_item())->get_string();
+    dynamic_cast<Gtk::Label *>(item->get_child())->set_label(value);
+  }
+
+  auto participant_editor::handle_item_setup(Glib::RefPtr<Gtk::ListItem> item) -> void
+  {
+    item->set_child(*Gtk::make_managed<Gtk::Label>());
+  }
+
+}  // namespace turns::app::windows
\ No newline at end of file
diff --git a/ui/src/windows/tracker.cpp b/ui/src/windows/tracker.cpp
new file mode 100644
index 0000000..4372117
--- /dev/null
+++ b/ui/src/windows/tracker.cpp
@@ -0,0 +1,177 @@
+#include "turns/ui/windows/tracker.hpp"
+
+#include "turns/ui/windows/participant_editor.hpp"
+#include "turns/core/participant.hpp"
+#include "turns/core/turn_order.hpp"
+#include "turns/lang/messages.hpp"
+
+#include <glibmm/binding.h>
+#include <glibmm/i18n.h>
+
+#include <adwaita.h>
+
+#include <utility>
+
+namespace turns::app::windows
+{
+
+  namespace
+  {
+    auto editor_for(Glib::RefPtr<core::participant> participant)
+    {
+      auto builder = Gtk::Builder::create_from_resource("/windows/participant_editor.ui");
+      return std::pair{builder, Gtk::Builder::get_widget_derived<windows::participant_editor>(builder, "participant_editor", participant)};
+    }
+
+    auto stop_dialog_callback(AdwAlertDialog * dialog, GAsyncResult * result, core::turn_order * order)
+    {
+      auto response = adw_alert_dialog_choose_finish(dialog, result);
+      if (response == Glib::ustring{"clear"})
+      {
+        order->clear();
+      }
+      order->stop();
+    }
+
+  }  // namespace
+
+  tracker::tracker(BaseObjectType * base, Glib::RefPtr<Gtk::Builder> const builder)
+      : Gtk::ApplicationWindow{base}
+      , m_adw{ADW_APPLICATION_WINDOW(gobj())}
+      , m_controls{builder->get_widget<Gtk::Revealer>("controls")}
+      , m_empty(builder->get_widget<Gtk::Widget>("empty"))
+      , m_stack{builder->get_widget<Gtk::Stack>("stack")}
+      , m_start{builder->get_widget<Gtk::Button>("start")}
+      , m_title(ADW_WINDOW_TITLE(builder->get_widget<Gtk::Widget>("title")->gobj()))
+      , m_turn_order{core::turn_order::create()}
+      , m_turn_order_view{Gtk::make_managed<widgets::turn_order_view>(m_turn_order)}
+      , m_subtitle{Glib::wrap(GTK_WIDGET(m_title)), "subtitle"}
+  {
+    setup_actions();
+
+    m_stack->add(*m_turn_order_view);
+
+    // clang-format off
+    Glib::Binding::bind_property(m_turn_order->is_empty(),
+                                 m_stack->property_visible_child(),
+                                 Glib::Binding::Flags::SYNC_CREATE,
+                                 [this](auto empty) { return empty ? m_empty : m_turn_order_view; });
+
+    Glib::Binding::bind_property(m_turn_order->is_running(),
+                                 m_controls->property_reveal_child(),
+                                 Glib::Binding::Flags::SYNC_CREATE);
+
+    Glib::Binding::bind_property(m_turn_order->is_empty(),
+                                 m_subtitle,
+                                 Glib::Binding::Flags::SYNC_CREATE,
+                                 [](auto empty) { return empty ? _(lang::no_active_turn_order) : ""; });
+    // clang-format on
+  }
+
+  auto tracker::handle_add_participant() -> void
+  {
+    auto [lifeline, dialog] = editor_for(nullptr);
+    dialog->present(this);
+    dialog->signal_finished().connect([this](auto n, auto p, auto d) { m_turn_order->add(n, p, d); });
+  }
+
+  auto tracker::handle_delete_participant(Glib::VariantBase param) -> void
+  {
+    auto index = Glib::VariantBase::cast_dynamic<Glib::Variant<int>>(param);
+    m_turn_order->remove(index.get());
+  }
+
+  auto tracker::handle_edit_participant(Glib::VariantBase param) -> void
+  {
+    static_cast<void>(param);
+    auto index = Glib::VariantBase::cast_dynamic<Glib::Variant<int>>(param);
+    auto participant = m_turn_order->get_typed_object<core::participant>(index.get());
+    auto [lifeline, dialog] = editor_for(participant);
+    dialog->present(this);
+  }
+
+  auto tracker::handle_stop() -> void
+  {
+    auto dialog = ADW_ALERT_DIALOG(adw_alert_dialog_new("Stop turn order", "Do you want to clear the turn order?"));
+    adw_alert_dialog_add_response(dialog, "stop", "Stop");
+    adw_alert_dialog_set_response_appearance(dialog, "stop", ADW_RESPONSE_SUGGESTED);
+    adw_alert_dialog_add_response(dialog, "clear", "Stop and clear");
+    adw_alert_dialog_set_response_appearance(dialog, "clear", ADW_RESPONSE_DESTRUCTIVE);
+    adw_alert_dialog_set_close_response(dialog, "stop");
+    adw_alert_dialog_set_default_response(dialog, "stop");
+    adw_alert_dialog_choose(dialog,
+                            GTK_WIDGET(this->gobj()),
+                            NULL,
+                            reinterpret_cast<GAsyncReadyCallback>(stop_dialog_callback),
+                            m_turn_order.get());
+  }
+
+  auto tracker::setup_actions() -> void
+  {
+    // win.add_participant
+    // depends-on: turn_order:state == stopped
+    {
+      auto action = add_action("add_participant", sigc::mem_fun(*this, &tracker::handle_add_participant));
+
+      Glib::Binding::bind_property(m_turn_order->is_running(),
+                                   action->property_enabled(),
+                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+    }
+
+    // win.clear
+    // depends-on: turn_order:is_empty == false
+    {
+      auto action = add_action("clear", sigc::mem_fun(*m_turn_order, &core::turn_order::clear));
+
+      Glib::Binding::bind_property(m_turn_order->is_empty(),
+                                   action->property_enabled(),
+                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+    }
+
+    // win.next
+    // depends-on: turn_order:state == running
+    {
+      auto action = add_action("next", sigc::mem_fun(*m_turn_order, &core::turn_order::next));
+
+      Glib::Binding::bind_property(m_turn_order->is_running(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
+    }
+
+    // win.previous
+    // depends-on: turn_order:has_previous == true
+    {
+      auto action = add_action("previous", sigc::mem_fun(*m_turn_order, &core::turn_order::previous));
+
+      Glib::Binding::bind_property(m_turn_order->has_previous(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
+    }
+
+    // win.start
+    // depends-on: turn_order:is_empty == false
+    {
+      auto action = add_action("start", sigc::mem_fun(*m_turn_order, &core::turn_order::start));
+
+      Glib::Binding::bind_property(m_turn_order->is_running(),
+                                   action->property_enabled(),
+                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+
+      Glib::Binding::bind_property(m_turn_order->is_running(),
+                                   m_start->property_visible(),
+                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
+    }
+
+    // win.stop
+    // depends-on: turn_order:running == true
+    {
+      auto action = add_action("stop", sigc::mem_fun(*this, &tracker::handle_stop));
+
+      Glib::Binding::bind_property(m_turn_order->is_running(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
+    }
+
+    // win.delete
+    // win.edit
+    {
+      add_action_with_parameter("delete", Glib::VARIANT_TYPE_INT32, sigc::mem_fun(*this, &tracker::handle_delete_participant));
+      add_action_with_parameter("edit", Glib::VARIANT_TYPE_INT32, sigc::mem_fun(*this, &tracker::handle_edit_participant));
+    }
+  }
+
+}  // namespace turns::app::windows
diff --git a/ui/tests/widgets/participant_row.cpp b/ui/tests/widgets/participant_row.cpp
new file mode 100644
index 0000000..f2af510
--- /dev/null
+++ b/ui/tests/widgets/participant_row.cpp
@@ -0,0 +1,24 @@
+#include "turns/ui/widgets/participant_row.hpp"
+
+#include "turns/core/disposition.hpp"
+#include "turns/core/participant.hpp"
+
+#include <catch2/catch_test_macros.hpp>
+
+namespace turns::app::widgets::tests
+{
+
+  TEST_CASE("A freshly constructed participant row")
+  {
+    SECTION("can be created without a participant")
+    {
+      REQUIRE(Gtk::make_managed<participant_row>(Glib::RefPtr<core::participant>{}));
+    }
+
+    SECTION("can be created with a participant")
+    {
+      REQUIRE(Gtk::make_managed<participant_row>(core::participant::create("Tazmyla Fireforge", 13, core::disposition::secret)));
+    }
+  }
+
+}  // namespace turns::app::widgets::tests
\ No newline at end of file
diff --git a/ui/tests/windows/participant_editor.cpp b/ui/tests/windows/participant_editor.cpp
new file mode 100644
index 0000000..99a4ded
--- /dev/null
+++ b/ui/tests/windows/participant_editor.cpp
@@ -0,0 +1,111 @@
+#include "turns/ui/windows/participant_editor.hpp"
+
+#include "turns/core/disposition.hpp"
+#include "turns/core/participant.hpp"
+#include "turns/lang/messages.hpp"
+
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+
+#include <glibmm/i18n.h>
+#include <glibmm/ustring.h>
+
+#include <gtkmm/builder.h>
+#include <gtkmm/listboxrow.h>
+#include <gtkmm/window.h>
+
+#include <adwaita.h>
+
+namespace turns::app::windows::tests
+{
+
+  TEST_CASE("A freshly constructed participant editor without a participant", "[windows]")
+  {
+    auto locale = GENERATE("en_US.UTF-8", "de_CH.UTF-8");
+    setlocale(LC_ALL, locale);
+
+    auto builder = Gtk::Builder::create_from_resource("/windows/participant_editor.ui");
+    auto instance = Gtk::Builder::get_widget_derived<participant_editor>(builder, "participant_editor");
+    auto window = Gtk::Window{};
+
+    SECTION("was successfully constructed")
+    {
+      REQUIRE(instance);
+    }
+
+    SECTION("has a non-empty title")
+    {
+      auto widget = ADW_DIALOG(instance->gobj());
+      REQUIRE(adw_dialog_get_title(widget));
+    }
+
+    SECTION("has its title set according to the active language")
+    {
+      auto widget = ADW_DIALOG(instance->gobj());
+      REQUIRE(adw_dialog_get_title(widget) == Glib::ustring{_(lang::add_participant)});
+    }
+
+    SECTION("has an empty name field")
+    {
+      auto widget = GTK_EDITABLE(builder->get_widget<Gtk::ListBoxRow>("name")->gobj());
+      REQUIRE(Glib::ustring{gtk_editable_get_text(widget)}.empty());
+    }
+
+    SECTION("has a zero priority field")
+    {
+      auto widget = ADW_SPIN_ROW(builder->get_widget<Gtk::ListBoxRow>("priority")->gobj());
+      REQUIRE(adw_spin_row_get_value(widget) == 0);
+    }
+
+    SECTION("allows binding to the finished signal")
+    {
+      REQUIRE((instance->signal_finished().connect([](auto, auto, auto) {})).connected());
+    }
+  }
+
+  TEST_CASE("A freshly constructed participant editor with a participant", "[windows]")
+  {
+    auto locale = GENERATE("en_US.UTF-8", "de_CH.UTF-8");
+    setlocale(LC_ALL, locale);
+
+    auto participant = core::participant::create("Qibi Babblebranch", 12, core::disposition::neutral);
+    auto builder = Gtk::Builder::create_from_resource("/windows/participant_editor.ui");
+    auto instance = Gtk::Builder::get_widget_derived<participant_editor>(builder, "participant_editor", participant);
+    auto window = Gtk::Window{};
+
+    SECTION("was successfully constructed")
+    {
+      REQUIRE(instance);
+    }
+
+    SECTION("has a non-empty title")
+    {
+      auto widget = ADW_DIALOG(instance->gobj());
+      REQUIRE(adw_dialog_get_title(widget));
+    }
+
+    SECTION("has its title set according to the active language")
+    {
+      auto widget = ADW_DIALOG(instance->gobj());
+      REQUIRE(adw_dialog_get_title(widget) == Glib::ustring{_(lang::edit_participant)});
+    }
+
+    SECTION("has its name field set according to its participant")
+    {
+      auto widget = GTK_EDITABLE(builder->get_widget<Gtk::ListBoxRow>("name")->gobj());
+      REQUIRE(gtk_editable_get_text(widget) == participant->name().get_value());
+    }
+
+    SECTION("has its priority field set according to its participant")
+    {
+      auto widget = ADW_SPIN_ROW(builder->get_widget<Gtk::ListBoxRow>("priority")->gobj());
+      REQUIRE(adw_spin_row_get_value(widget) == participant->priority());
+    }
+
+    SECTION("allows binding to the finished signal")
+    {
+      REQUIRE((instance->signal_finished().connect([](auto, auto, auto) {})).connected());
+    }
+  }
+
+}  // namespace turns::app::windows::tests
\ No newline at end of file
diff --git a/ui/tests/windows/resources.cpp b/ui/tests/windows/resources.cpp
new file mode 100644
index 0000000..315181a
--- /dev/null
+++ b/ui/tests/windows/resources.cpp
@@ -0,0 +1,13 @@
+#include <catch2/catch_test_macros.hpp>
+
+#include <gtkmm/builder.h>
+
+TEST_CASE("GResource for tracker")
+{
+  auto builder = Gtk::Builder::create_from_resource("/windows/tracker.ui");
+
+  SECTION("can create Gtk.Builder for the main window UI definition")
+  {
+    REQUIRE(builder);
+  }
+}
\ No newline at end of file
diff --git a/ui/tests/windows/tracker.cpp b/ui/tests/windows/tracker.cpp
new file mode 100644
index 0000000..3ec5658
--- /dev/null
+++ b/ui/tests/windows/tracker.cpp
@@ -0,0 +1,75 @@
+#include "turns/ui/windows/tracker.hpp"
+
+#include "turns/lang/messages.hpp"
+
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+
+#include <glibmm/i18n.h>
+#include <glibmm/ustring.h>
+
+#include <gtkmm/builder.h>
+#include <gtkmm/button.h>
+#include <gtkmm/menubutton.h>
+#include <gtkmm/widget.h>
+
+#include <adwaita.h>
+
+namespace turns::app::windows::tests
+{
+
+  TEST_CASE("A freshly constructed tracker window", "[windows]")
+  {
+    auto locale = GENERATE("en_US.UTF-8", "de_CH.UTF-8");
+    setlocale(LC_ALL, locale);
+
+    auto builder = Gtk::Builder::create_from_resource("/windows/tracker.ui");
+    auto instance = Gtk::Builder::get_widget_derived<tracker>(builder, "tracker");
+
+    SECTION("was successfully constructed")
+    {
+      REQUIRE(instance);
+    }
+
+    SECTION("has a non-empty subtitle")
+    {
+      auto widget = builder->get_widget<Gtk::Widget>("title");
+      auto adw = ADW_WINDOW_TITLE(widget->gobj());
+      REQUIRE(adw_window_title_get_subtitle(adw));
+    }
+
+    SECTION("has its subtitle set according to the active language")
+    {
+      auto widget = builder->get_widget<Gtk::Widget>("title");
+      auto adw = ADW_WINDOW_TITLE(widget->gobj());
+      REQUIRE(adw_window_title_get_subtitle(adw) == Glib::ustring{_(lang::no_active_turn_order)});
+    }
+
+    SECTION("has a non-empty title")
+    {
+      auto widget = builder->get_widget<Gtk::Widget>("title");
+      auto adw = ADW_WINDOW_TITLE(widget->gobj());
+      REQUIRE(adw_window_title_get_title(adw));
+    }
+
+    SECTION("has its title set according to the active language")
+    {
+      auto widget = builder->get_widget<Gtk::Widget>("title");
+      auto adw = ADW_WINDOW_TITLE(widget->gobj());
+      REQUIRE(adw_window_title_get_title(adw) == Glib::ustring{_(lang::turns)});
+    }
+
+    SECTION("has its add_participant button's tooltip set according to the active language")
+    {
+      auto widget = builder->get_widget<Gtk::Button>("add_participant");
+      REQUIRE(widget->get_tooltip_text() == Glib::ustring{_(lang::add_participant)});
+    }
+
+    SECTION("as its open_main_menu button's tooltip set according to the active language")
+    {
+      auto widget = builder->get_widget<Gtk::MenuButton>("open_main_menu");
+      REQUIRE(widget->get_tooltip_text() == Glib::ustring{_(lang::main_menu)});
+    }
+  }
+
+}  // namespace turns::app::windows::tests
\ No newline at end of file
-- 
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