Solitaire: Persist game mode to config file

Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/7d062d0033c
Pull-request: https://github.com/SerenityOS/serenity/pull/7257

Userland/Games/Solitaire/Game.cpp

@@ -196,6 +196,9 @@ void Game::mousedown_event(GUI::MouseEvent& event)
                     case Mode::ThreeCardDraw:
                         cards_to_draw = 3;
                         break;
+                    default:
+                        VERIFY_NOT_REACHED();
+                        break;
                     }
 
                     update(stock.bounding_box());

Userland/Games/Solitaire/Game.h

@@ -12,9 +12,10 @@
 
 namespace Solitaire {
 
-enum class Mode {
+enum class Mode : u8 {
     SingleCardDraw,
     ThreeCardDraw,
+    __Count
 };
 
 class Game final : public GUI::Frame {

Userland/Games/Solitaire/main.cpp

@@ -6,6 +6,7 @@
 
 #include "Game.h"
 #include <Games/Solitaire/SolitaireGML.h>
+#include <LibCore/ConfigFile.h>
 #include <LibCore/Timer.h>
 #include <LibGUI/Action.h>
 #include <LibGUI/ActionGroup.h>
@@ -13,6 +14,7 @@
 #include <LibGUI/Icon.h>
 #include <LibGUI/Menu.h>
 #include <LibGUI/Menubar.h>
+#include <LibGUI/MessageBox.h>
 #include <LibGUI/Statusbar.h>
 #include <LibGUI/Window.h>
 #include <stdio.h>
@@ -22,8 +24,9 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
     auto app_icon = GUI::Icon::default_icon("app-solitaire");
+    auto config = Core::ConfigFile::get_for_app("Solitaire");
 
-    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath wpath cpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }
@@ -33,6 +36,11 @@ int main(int argc, char** argv)
         return 1;
     }
 
+    if (unveil(config->filename().characters(), "crw") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
     if (unveil(nullptr, nullptr) < 0) {
         perror("unveil");
         return 1;
@@ -41,6 +49,18 @@ int main(int argc, char** argv)
     auto window = GUI::Window::construct();
     window->set_title("Solitaire");
 
+    auto mode = static_cast<Solitaire::Mode>(config->read_num_entry("Settings", "Mode", static_cast<int>(Solitaire::Mode::SingleCardDraw)));
+
+    auto update_mode = [&](Solitaire::Mode new_mode) {
+        mode = new_mode;
+        config->write_num_entry("Settings", "Mode", static_cast<int>(mode));
+        if (!config->sync())
+            GUI::MessageBox::show(window, "Configuration could not be saved", "Error", GUI::MessageBox::Type::Error);
+    };
+
+    if (mode >= Solitaire::Mode::__Count)
+        update_mode(Solitaire::Mode::SingleCardDraw);
+
     auto& widget = window->set_main_widget<GUI::Widget>();
     widget.load_from_gml(solitaire_gml);
 
@@ -91,15 +111,18 @@ int main(int argc, char** argv)
     draw_settng_actions.set_exclusive(true);
 
     auto single_card_draw_action = GUI::Action::create_checkable("&Single Card Draw", [&](auto&) {
-        game.setup(Solitaire::Mode::SingleCardDraw);
+        update_mode(Solitaire::Mode::SingleCardDraw);
+        game.setup(mode);
     });
-    single_card_draw_action->set_checked(true);
+    single_card_draw_action->set_checked(mode == Solitaire::Mode::SingleCardDraw);
     single_card_draw_action->set_status_tip("Draw one card at a time");
     draw_settng_actions.add_action(single_card_draw_action);
 
     auto three_card_draw_action = GUI::Action::create_checkable("&Three Card Draw", [&](auto&) {
-        game.setup(Solitaire::Mode::ThreeCardDraw);
+        update_mode(Solitaire::Mode::ThreeCardDraw);
+        game.setup(mode);
     });
+    three_card_draw_action->set_checked(mode == Solitaire::Mode::ThreeCardDraw);
     three_card_draw_action->set_status_tip("Draw three cards at a time");
     draw_settng_actions.add_action(three_card_draw_action);
 
@@ -107,7 +130,7 @@ int main(int argc, char** argv)
     auto& game_menu = menubar->add_menu("&Game");
 
     game_menu.add_action(GUI::Action::create("&New Game", { Mod_None, Key_F2 }, [&](auto&) {
-        game.setup(game.mode());
+        game.setup(mode);
     }));
     game_menu.add_separator();
     game_menu.add_action(single_card_draw_action);
@@ -123,7 +146,7 @@ int main(int argc, char** argv)
     window->set_menubar(move(menubar));
     window->set_icon(app_icon.bitmap_for_size(16));
     window->show();
-    game.setup(game.mode());
+    game.setup(mode);
 
     return app->exec();
 }