SystemDialog: Revamp to be more Win95-like

Only thing I don't like right now is the fact that we rely on the shell.

Applications/SystemDialog/main.cpp

@@ -24,48 +24,162 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/String.h>
+#include <AK/Vector.h>
+#include <LibCore/ConfigFile.h>
 #include <LibGUI/Application.h>
 #include <LibGUI/BoxLayout.h>
 #include <LibGUI/Button.h>
 #include <LibGUI/Desktop.h>
+#include <LibGUI/Dialog.h>
 #include <LibGUI/Label.h>
-#include <LibGUI/MessageBox.h>
-#include <LibGUI/Window.h>
+#include <LibGUI/RadioButton.h>
+#include <LibGUI/Widget.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/TextAlignment.h>
 #include <stdio.h>
 #include <sys/utsname.h>
 
-static int run_shutdown_dialog(int argc, char** argv);
+struct DialogOption {
+    String title;
+    String cmd;
+    bool enabled;
+    bool default_action;
+};
+
+Vector<DialogOption> get_options()
+{
+    Vector<DialogOption> options;
+    auto config = Core::ConfigFile::get_for_system("SystemDialog");
+    for (auto title : config->groups()) {
+        dbg() << "title = " << title;
+        auto command = config->read_entry(title, "command", "");
+        dbg() << "\tcommand=" << command;
+        auto enabled = config->read_bool_entry(title, "enabled", true);
+        dbg() << "\tenabled=" << enabled;
+        auto default_entry = config->read_bool_entry(title, "default", false);
+        dbg() << "\tdefault=" << default_entry;
+
+        ASSERT(!(command == "" && enabled));
+
+        options.append({ title, command, enabled, default_entry });
+    }
+    return options;
+}
 
 int main(int argc, char** argv)
 {
-    if (argc != 2) {
-        printf("usage: SystemDialog <type>\n");
-        return 0;
+    Vector<DialogOption> options;
+
+    if (pledge("stdio shared_buffer rpath wpath cpath unix fattr exec", nullptr) < 0) {
+        perror("pledge");
+        return 1;
     }
 
-    if (String(argv[1]) == "--shutdown")
-        return run_shutdown_dialog(argc, argv);
+    if (unveil("/etc/SystemDialog.ini", "rwc") < 0) {
+        perror("unveil");
+        return 1;
+    }
 
-    fprintf(stderr, "Unknown argument: %s\n", argv[1]);
-    return 1;
-}
+    if (unveil("/tmp", "rwc") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
+    if (unveil("/res", "r") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
+    if (unveil("/bin/Shell", "rx") < 0) {
+        perror("unveil");
+        return 1;
+    }
+
+    unveil(nullptr, nullptr);
 
-int run_shutdown_dialog(int argc, char** argv)
-{
     GUI::Application app(argc, argv);
 
-    {
-        auto result = GUI::MessageBox::show("Shut down Serenity?", "Confirm Shutdown", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::YesNo);
+    if (pledge("stdio shared_buffer rpath wpath cpath exec", nullptr) < 0) {
+        perror("pledge");
+        return 1;
+    }
 
-        if (result == GUI::MessageBox::ExecYes) {
-            int rc = execl("/bin/shutdown", "/bin/shutdown", "-n", nullptr);
-            if (rc < 0) {
-                perror("execl");
-                return 1;
-            }
-            ASSERT_NOT_REACHED();
+    options = get_options();
+
+    if (pledge("stdio shared_buffer rpath exec", nullptr) < 0) {
+        perror("pledge");
+        return 1;
+    }
+
+    auto dialog = GUI::Dialog::construct(nullptr);
+    Gfx::Rect rect({ 0, 0, 180, 180 + ((options.size() - 3) * 16) });
+    rect.center_within(GUI::Desktop::the().rect());
+    dialog->set_rect(rect);
+    dialog->set_resizable(false);
+    dialog->set_title("SerenityOS");
+
+    auto main = GUI::Widget::construct();
+    dialog->set_main_widget(main);
+    main->set_layout(make<GUI::VerticalBoxLayout>());
+    main->layout()->set_margins({ 8, 8, 8, 8 });
+    main->layout()->set_spacing(8);
+    main->set_fill_with_background_color(true);
+
+    auto header = GUI::Label::construct(main.ptr());
+    header->set_text("What would you like to do?");
+    header->set_preferred_size(0, 16);
+    header->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
+    header->set_font(Gfx::Font::default_bold_font());
+
+    int selected;
+    for (int i = 0; i < options.size(); i++) {
+        auto action = options[i];
+        auto radio = GUI::RadioButton::construct(main);
+        radio->set_enabled(action.enabled);
+        radio->set_text(action.title);
+
+        radio->on_checked = [&selected, i](auto) {
+            selected = i;
+        };
+
+        if (action.default_action) {
+            radio->set_checked(true);
+            selected = i;
         }
+    }
 
+    auto button_box = GUI::Widget::construct(main.ptr());
+    button_box->set_layout(make<GUI::HorizontalBoxLayout>());
+    button_box->layout()->set_spacing(8);
+
+    auto ok_button = GUI::Button::construct(button_box);
+    ok_button->on_click = [&](auto&) {
+        dialog->done(true);
+    };
+    ok_button->set_text("OK");
+
+    auto cancel_button = GUI::Button::construct(button_box);
+    cancel_button->on_click = [&](auto&) {
+        dialog->done(false);
+    };
+    cancel_button->set_text("Cancel");
+
+    dialog->exec();
+
+    if (pledge("stdio shared_buffer exec", nullptr) < 0) {
+        perror("pledge");
+        return 1;
+    }
+
+    if (!dialog->result())
         return 0;
+
+    // TODO Don't rely on the shell
+    auto command = options[selected].cmd.characters();
+    dbg() << command;
+    if (execl("/bin/Shell", "/bin/Shell", "-c", command, NULL) < 0) {
+        perror("execl");
+        return 1;
     }
 }

Base/etc/SystemDialog.ini

@@ -0,0 +1,12 @@
+[Shut Down]
+command=/bin/shutdown --now
+default=1
+
+[Reboot]
+command=/bin/reboot
+
+[Log Out]
+enabled=0
+
+[Suspend]
+enabled=0