ui: tracker implement loading UI

3 files changed, 88 insertions, 13 deletions

diff --git a/ui/include/turns/ui/windows/tracker.hpp b/ui/include/turns/ui/windows/tracker.hpp
index 6d0b4d6..f520097 100644
--- a/ui/include/turns/ui/windows/tracker.hpp
+++ b/ui/include/turns/ui/windows/tracker.hpp
@@ -23,6 +23,7 @@
 
 #include <optional>
 #include <string>
+#include <stdexcept>
 
 namespace turns::ui::windows
 {
@@ -32,15 +33,22 @@ namespace turns::ui::windows
     tracker(BaseObjectType * base, Glib::RefPtr<Gtk::Builder> const builder);
 
   private:
+    auto do_save() -> void;
+
     auto handle_add_participant() -> void;
     auto handle_delete_participant(Glib::VariantBase param) -> void;
     auto handle_edit_participant(Glib::VariantBase param) -> void;
+    auto handle_open() -> void;
+    auto handle_open_done(Glib::RefPtr<Gio::AsyncResult> result) -> void;
+    auto handle_open_response(Glib::RefPtr<Gio::AsyncResult> result, Glib::RefPtr<Gtk::FileDialog> dialog) -> void;
     auto handle_save(bool force_ask) -> void;
     auto handle_save_done(Glib::RefPtr<Gio::AsyncResult> result) -> void;
     auto handle_save_response(Glib::RefPtr<Gio::AsyncResult> result, Glib::RefPtr<Gtk::FileDialog> dialog) -> void;
     auto handle_stop() -> void;
 
+
     auto setup_actions() -> void;
+    auto show_error_toast(std::exception const & e) -> void;
 
     auto update_subtitle() -> void;
 
@@ -57,6 +65,7 @@ namespace turns::ui::windows
 
     std::string m_file_tag{};
     Glib::RefPtr<Gio::File> m_file{};
+    std::string m_buffer{};
   };
 
 }  // namespace turns::ui::windows
diff --git a/ui/res/ui.cmb b/ui/res/ui.cmb
index 37ecbb2..28ef448 100644
--- a/ui/res/ui.cmb
+++ b/ui/res/ui.cmb
@@ -24,7 +24,7 @@
 	(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,3,None,None),
+	(1,10,"(item)",None,9,None,None,None,4,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),
@@ -32,12 +32,13 @@
 	(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),
-	(1,25,"(item)",None,9,None,None,None,1,None,None),
+	(1,25,"(item)",None,9,None,None,None,2,None,None),
 	(1,26,"AdwToastOverlay","overlay",2,None,None,None,-1,None,None),
 	(1,30,"GtkStack","stack",26,None,None,None,-1,None,None),
 	(1,31,"AdwStatusPage","empty",30,None,None,None,None,None,None),
 	(1,32,"GtkButton",None,31,None,None,None,None,None,None),
-	(1,33,"(item)",None,9,None,None,None,2,None,None),
+	(1,33,"(item)",None,9,None,None,None,3,None,None),
+	(1,34,"(item)",None,9,None,None,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),
@@ -111,6 +112,8 @@
 	(1,32,"GtkWidget","halign","center",None,None,None,None,None,None,None,None,None),
 	(1,33,"(item)","action","win.save-as",None,None,None,None,None,None,None,None,None),
 	(1,33,"(item)","label","Save as...",1,None,None,None,None,None,None,None,None),
+	(1,34,"(item)","action","win.open",None,None,None,None,None,None,None,None,None),
+	(1,34,"(item)","label","_Open...",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),
diff --git a/ui/src/windows/tracker.cpp b/ui/src/windows/tracker.cpp
index 5afadc5..6c248fe 100644
--- a/ui/src/windows/tracker.cpp
+++ b/ui/src/windows/tracker.cpp
@@ -20,6 +20,8 @@
 #include <nlohmann/json.hpp>
 
 #include <format>
+#include <stdexcept>
+#include <string_view>
 #include <utility>
 
 namespace turns::ui::windows
@@ -82,6 +84,12 @@ namespace turns::ui::windows
     // clang-format on
   }
 
+  auto tracker::do_save() -> void
+  {
+    m_buffer = m_turn_order->serialize().dump(2);
+    m_file->replace_contents_async(sigc::mem_fun(*this, &tracker::handle_save_done), m_buffer, m_file_tag);
+  }
+
   auto tracker::handle_add_participant() -> void
   {
     auto [lifeline, dialog] = editor_for(nullptr);
@@ -104,11 +112,62 @@ namespace turns::ui::windows
     dialog->present(this);
   }
 
+  auto tracker::handle_open() -> void
+  {
+    auto filters = Gio::ListStore<Gtk::FileFilter>::create();
+    auto filter = Gtk::FileFilter::create();
+    filter->set_name(_("Turns Files"));
+    filter->add_pattern("*.trns");
+    filters->append(filter);
+
+    auto dialog = Gtk::FileDialog::create();
+    dialog->set_filters(filters);
+    dialog->open(sigc::bind(sigc::mem_fun(*this, &tracker::handle_open_response), dialog));
+  }
+
+  auto tracker::handle_open_done(Glib::RefPtr<Gio::AsyncResult> result) -> void
+  try
+  {
+    set_sensitive();
+    char * data{};
+    auto size = std::size_t{};
+    if (!m_file->load_contents_finish(result, data, size, m_file_tag))
+    {
+      m_file.reset();
+      m_file_tag.clear();
+      return;
+    }
+    auto deserialized = nlohmann::json::parse(std::string_view{data, size});
+    m_turn_order->load(deserialized);
+    auto name = m_file->get_basename();
+    auto message = std::vformat(_(lang::successfully_opened_format), std::make_format_args(name));
+    auto toast = adw_toast_new(message.c_str());
+    adw_toast_overlay_add_toast(m_overlay, toast);
+    set_title(std::format("{} - {}", _(lang::turns), name));
+  }
+  catch (std::exception const & e)
+  {
+    show_error_toast(e);
+  }
+
+  auto tracker::handle_open_response(Glib::RefPtr<Gio::AsyncResult> result, Glib::RefPtr<Gtk::FileDialog> dialog) -> void
+  try
+  {
+    m_file = dialog->open_finish(result);
+    m_file->load_contents_async(sigc::mem_fun(*this, &tracker::handle_open_done));
+    set_sensitive(false);
+  }
+  catch (std::exception const & e)
+  {
+    set_sensitive();
+    show_error_toast(e);
+  }
+
   auto tracker::handle_save(bool force_ask) -> void
   {
     if (m_file && !force_ask)
     {
-      m_file->replace_contents_async(sigc::mem_fun(*this, &tracker::handle_save_done), m_turn_order->serialize().dump(2), m_file_tag);
+      do_save();
     }
     else
     {
@@ -145,27 +204,21 @@ namespace turns::ui::windows
   }
   catch (Gio::Error const & e)
   {
-    auto error = e.what();
-    auto message = std::vformat(_(lang::saving_failed_format), std::make_format_args(error));
-    auto toast = adw_toast_new(message.c_str());
-    adw_toast_overlay_add_toast(m_overlay, toast);
+    show_error_toast(e);
   }
 
   auto tracker::handle_save_response(Glib::RefPtr<Gio::AsyncResult> result, Glib::RefPtr<Gtk::FileDialog> dialog) -> void
   try
   {
     m_file = dialog->save_finish(result);
-    m_file->replace_contents_async(sigc::mem_fun(*this, &tracker::handle_save_done), m_turn_order->serialize().dump(2), m_file_tag);
+    do_save();
     set_sensitive(false);
   }
   catch (Gtk::DialogError const & e)
   {
     if (e.code() == Gtk::DialogError::FAILED)
     {
-      auto error = e.what();
-      auto message = std::vformat(_(lang::saving_failed_format), std::make_format_args(error));
-      auto toast = adw_toast_new(message.c_str());
-      adw_toast_overlay_add_toast(m_overlay, toast);
+      show_error_toast(e);
     }
   }
 
@@ -249,9 +302,11 @@ namespace turns::ui::windows
 
     // win.delete
     // win.edit
+    // win.open
     {
       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));
+      add_action("open", sigc::mem_fun(*this, &tracker::handle_open));
     }
 
     // win.save
@@ -275,6 +330,14 @@ namespace turns::ui::windows
     }
   }
 
+  auto tracker::show_error_toast(std::exception const & e) -> void
+  {
+    auto error = e.what();
+    auto message = std::vformat(_(lang::saving_failed_format), std::make_format_args(error));
+    auto toast = adw_toast_new(message.c_str());
+    adw_toast_overlay_add_toast(m_overlay, toast);
+  }
+
   auto tracker::update_subtitle() -> void
   {
     if (m_turn_order->is_empty())