Base+WindowsServer+keymap: Store multiple keymaps in a config

Author: https://github.com/TSultanov
Commit: https://github.com/SerenityOS/serenity/commit/c7bd47c87c0
Pull-request: https://github.com/SerenityOS/serenity/pull/12010

Base/etc/Keyboard.ini

@@ -1,2 +1,2 @@
 [Mapping]
-Keymap=en-us
+Keymaps=en-us

Userland/Applications/KeyboardSettings/CMakeLists.txt

@@ -5,11 +5,13 @@ serenity_component(
 )
 
 compile_gml(Keyboard.gml KeyboardWidgetGML.h keyboard_widget_gml)
+compile_gml(KeymapDialog.gml KeymapDialogGML.h keymap_dialog_gml)
 
 set(SOURCES
     main.cpp
     KeyboardSettingsWidget.cpp
     KeyboardWidgetGML.h
+    KeymapDialogGML.h
 )
 
 serenity_app(KeyboardSettings ICON app-keyboard-settings)

Userland/Applications/KeyboardSettings/Keyboard.gml

@@ -8,7 +8,7 @@
 
     @GUI::GroupBox {
         title: "Mapping"
-        fixed_height: 200
+        fixed_height: 150
 
         layout: @GUI::HorizontalBoxLayout {
             margins: [16, 8, 8]
@@ -25,8 +25,56 @@
                 fixed_height: 32
                 icon: "/res/icons/32x32/app-keyboard-mapper.png"
             }
+        }
 
-            @GUI::Widget
+        @GUI::Widget {
+            layout: @GUI::VerticalBoxLayout {
+                spacing: 2
+            }
+
+            @GUI::ListView {
+                name: "selected_keymaps"
+            }
+
+            @GUI::Widget {
+                fixed_height: 24
+
+                layout: @GUI::HorizontalBoxLayout {
+                    spacing: 4
+                }
+
+                @GUI::Button {
+                    name: "add_keymap_button"
+                    text: "Add keymap"
+                }
+
+                @GUI::Button {
+                    name: "remove_keymap_button"
+                    text: "Remove keymap"
+                    enabled: false
+                }
+            }
+        }
+    }
+
+    @GUI::GroupBox {
+        title: "Test input"
+
+        layout: @GUI::HorizontalBoxLayout {
+            margins: [16, 8, 8]
+            spacing: 16
+        }
+
+        @GUI::Widget {
+            fixed_width: 32
+            layout: @GUI::VerticalBoxLayout {
+            }
+
+            @GUI::Label {
+                fixed_width: 32
+                fixed_height: 32
+                icon: "/res/icons/32x32/app-keyboard-settings.png"
+            }
         }
 
         @GUI::Widget {
@@ -35,22 +83,8 @@
             }
 
             @GUI::Widget {
-                layout: @GUI::HorizontalBoxLayout {
-                    spacing: 16
-                }
+                fixed_height: 24
 
-                @GUI::Label {
-                    text: "Character mapping file:"
-                    fixed_width: 130
-                    text_alignment: "CenterLeft"
-                }
-
-                @GUI::ComboBox {
-                    name: "character_map_file_combo"
-                }
-            }
-
-            @GUI::Widget {
                 layout: @GUI::HorizontalBoxLayout {
                     spacing: 16
                 }
@@ -68,7 +102,6 @@
             }
 
             @GUI::TextEditor {
-                fixed_height: 100
                 name: "test_typing_area"
             }
         }

Userland/Applications/KeyboardSettings/KeyboardSettingsWidget.cpp

@@ -9,16 +9,126 @@
 #include <AK/JsonObject.h>
 #include <AK/QuickSort.h>
 #include <Applications/KeyboardSettings/KeyboardWidgetGML.h>
+#include <Applications/KeyboardSettings/KeymapDialogGML.h>
 #include <LibConfig/Client.h>
 #include <LibCore/DirIterator.h>
 #include <LibCore/File.h>
 #include <LibGUI/Application.h>
+#include <LibGUI/ComboBox.h>
+#include <LibGUI/Dialog.h>
 #include <LibGUI/ItemListModel.h>
 #include <LibGUI/Label.h>
 #include <LibGUI/MessageBox.h>
+#include <LibGUI/Model.h>
+#include <LibGUI/Widget.h>
+#include <LibGUI/Window.h>
 #include <LibKeyboard/CharacterMap.h>
 #include <spawn.h>
 
+class KeymapSelectionDialog final : public GUI::Dialog {
+    C_OBJECT(KeymapSelectionDialog)
+public:
+    virtual ~KeymapSelectionDialog() override {};
+
+    static String select_keymap(Window* parent_window, Vector<String> const& selected_keymaps)
+    {
+        auto dialog = KeymapSelectionDialog::construct(parent_window, selected_keymaps);
+        dialog->set_title("Add a keymap");
+
+        if (dialog->exec() == GUI::Dialog::ExecOK) {
+            return dialog->selected_keymap();
+        }
+
+        return String::empty();
+    }
+
+    String selected_keymap() { return m_selected_keymap; }
+
+private:
+    KeymapSelectionDialog(Window* parent_window, Vector<String> const& selected_keymaps)
+        : Dialog(parent_window)
+    {
+        auto& widget = set_main_widget<GUI::Widget>();
+        if (!widget.load_from_gml(keymap_dialog_gml))
+            VERIFY_NOT_REACHED();
+
+        set_resizable(false);
+        resize(190, 54);
+
+        set_icon(parent_window->icon());
+
+        Core::DirIterator iterator("/res/keymaps/", Core::DirIterator::Flags::SkipDots);
+        if (iterator.has_error()) {
+            GUI::MessageBox::show(nullptr, String::formatted("Error on reading mapping file list: {}", iterator.error_string()), "Keyboard settings", GUI::MessageBox::Type::Error);
+            GUI::Application::the()->quit(-1);
+        }
+
+        while (iterator.has_next()) {
+            auto name = iterator.next_path();
+            auto basename = name.replace(".json", "");
+            if (!selected_keymaps.find(basename).is_end())
+                continue;
+            m_character_map_files.append(basename);
+        }
+        quick_sort(m_character_map_files);
+
+        m_selected_keymap = m_character_map_files.first();
+
+        m_keymaps_combobox = *widget.find_descendant_of_type_named<GUI::ComboBox>("keymaps_combobox");
+        m_keymaps_combobox->set_only_allow_values_from_model(true);
+        m_keymaps_combobox->set_model(*GUI::ItemListModel<String>::create(m_character_map_files));
+        m_keymaps_combobox->set_selected_index(0);
+
+        m_keymaps_combobox->on_change = [&](auto& keymap, auto) {
+            m_selected_keymap = keymap;
+        };
+
+        auto& ok_button = *widget.find_descendant_of_type_named<GUI::Button>("ok_button");
+        ok_button.on_click = [this](auto) {
+            done(Dialog::ExecOK);
+        };
+
+        auto& cancel_button = *widget.find_descendant_of_type_named<GUI::Button>("cancel_button");
+        cancel_button.on_click = [this](auto) {
+            done(Dialog::ExecCancel);
+        };
+    }
+
+    RefPtr<GUI::ComboBox> m_keymaps_combobox;
+    Vector<String> m_character_map_files;
+    String m_selected_keymap;
+};
+
+class KeymapModel final : public GUI::Model {
+public:
+    KeymapModel() {};
+
+    int row_count(GUI::ModelIndex const&) const override { return m_data.size(); }
+    int column_count(GUI::ModelIndex const&) const override { return 1; }
+
+    GUI::Variant data(GUI::ModelIndex const& index, GUI::ModelRole) const override
+    {
+        return m_data.at(index.row());
+    }
+
+    void remove_at(size_t index)
+    {
+        m_data.remove(index);
+        invalidate();
+    }
+
+    void add_keymap(String const& keymap)
+    {
+        m_data.append(keymap);
+        invalidate();
+    }
+
+    Vector<String> const& keymaps() const { return m_data; }
+
+private:
+    Vector<String> m_data;
+};
+
 KeyboardSettingsWidget::KeyboardSettingsWidget()
 {
     load_from_gml(keyboard_widget_gml);
@@ -33,37 +143,51 @@ KeyboardSettingsWidget::KeyboardSettingsWidget()
     m_current_applied_keymap = keymap_object.get("keymap").to_string();
     dbgln("KeyboardSettings thinks the current keymap is: {}", m_current_applied_keymap);
 
-    Core::DirIterator iterator("/res/keymaps/", Core::DirIterator::Flags::SkipDots);
-    if (iterator.has_error()) {
-        GUI::MessageBox::show(nullptr, String::formatted("Error on reading mapping file list: {}", iterator.error_string()), "Keyboard settings", GUI::MessageBox::Type::Error);
-        GUI::Application::the()->quit(-1);
+    auto mapper_config(Core::ConfigFile::open("/etc/Keyboard.ini"));
+    auto keymaps = mapper_config->read_entry("Mapping", "Keymaps", "");
+
+    auto keymaps_vector = keymaps.split(',');
+
+    m_selected_keymaps_listview = find_descendant_of_type_named<GUI::ListView>("selected_keymaps");
+    m_selected_keymaps_listview->horizontal_scrollbar().set_visible(false);
+    m_selected_keymaps_listview->set_model(adopt_ref(*new KeymapModel()));
+    auto& keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
+
+    for (auto& keymap : keymaps_vector) {
+        m_initial_keymap_list.append(keymap);
+        keymaps_list_model.add_keymap(keymap);
     }
 
-    while (iterator.has_next()) {
-        auto name = iterator.next_path();
-        m_character_map_files.append(name.replace(".json", ""));
-    }
-    quick_sort(m_character_map_files);
+    m_add_keymap_button = find_descendant_of_type_named<GUI::Button>("add_keymap_button");
 
-    size_t initial_keymap_index = SIZE_MAX;
-    for (size_t i = 0; i < m_character_map_files.size(); ++i) {
-        if (m_character_map_files[i].equals_ignoring_case(m_current_applied_keymap))
-            initial_keymap_index = i;
-    }
-    VERIFY(initial_keymap_index < m_character_map_files.size());
-
-    m_character_map_file_combo = find_descendant_of_type_named<GUI::ComboBox>("character_map_file_combo");
-    m_character_map_file_combo->set_only_allow_values_from_model(true);
-    m_character_map_file_combo->set_model(*GUI::ItemListModel<String>::create(m_character_map_files));
-    m_character_map_file_combo->set_selected_index(initial_keymap_index);
-    // This is a bit of a hack. We set the keymap to the selected one, so that it applies in the testing box below.
-    // But, we also keep track of the current "applied" keymap, and then revert to that when we exit.
-    // Ideally, we'd only use the selected keymap for the testing box without making a global system change.
-    m_character_map_file_combo->on_change = [this](auto& keymap, auto) {
-        set_keymap(keymap);
+    m_add_keymap_button->on_click = [&](auto) {
+        auto keymap = KeymapSelectionDialog::select_keymap(window(), keymaps_list_model.keymaps());
+        keymaps_list_model.add_keymap(keymap);
+    };
+
+    m_remove_keymap_button = find_descendant_of_type_named<GUI::Button>("remove_keymap_button");
+
+    m_remove_keymap_button->on_click = [&](auto) {
+        auto& selection = m_selected_keymaps_listview->selection();
+        for (auto& index : selection.indices()) {
+            keymaps_list_model.remove_at(index.row());
+        }
+    };
+
+    m_selected_keymaps_listview->on_selection_change = [&]() {
+        auto& selection = m_selected_keymaps_listview->selection();
+        m_remove_keymap_button->set_enabled(!selection.is_empty() && keymaps_list_model.keymaps().size() > 1);
+    };
+
+    m_test_typing_area = *find_descendant_of_type_named<GUI::TextEditor>("test_typing_area");
+    m_test_typing_area->on_focusin = [&]() {
+        set_keymaps(keymaps_list_model.keymaps());
+    };
+
+    m_test_typing_area->on_focusout = [&]() {
+        set_keymaps(m_initial_keymap_list);
     };
 
-    m_test_typing_area = find_descendant_of_type_named<GUI::TextEditor>("test_typing_area");
     m_clear_test_typing_area_button = find_descendant_of_type_named<GUI::Button>("button_clear_test_typing_area");
     m_clear_test_typing_area_button->on_click = [this](auto) {
         m_test_typing_area->clear();
@@ -76,25 +200,36 @@ KeyboardSettingsWidget::KeyboardSettingsWidget()
 
 KeyboardSettingsWidget::~KeyboardSettingsWidget()
 {
-    set_keymap(m_current_applied_keymap);
+    set_keymaps(m_initial_keymap_list);
+}
+
+void KeyboardSettingsWidget::window_activated(bool is_active_window)
+{
+    if (is_active_window && m_test_typing_area->is_focused()) {
+        auto& keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
+        set_keymaps(keymaps_list_model.keymaps());
+    } else {
+        set_keymaps(m_initial_keymap_list);
+    }
 }
 
 void KeyboardSettingsWidget::apply_settings()
 {
-    String character_map_file = m_character_map_file_combo->text();
-    if (character_map_file.is_empty()) {
-        GUI::MessageBox::show(window(), "Please select character mapping file.", "Keyboard settings", GUI::MessageBox::Type::Error);
-        return;
+    auto& m_keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
+    set_keymaps(m_keymaps_list_model.keymaps());
+    m_initial_keymap_list.clear();
+    for (auto& keymap : m_keymaps_list_model.keymaps()) {
+        m_initial_keymap_list.append(keymap);
     }
-    m_current_applied_keymap = character_map_file;
-    set_keymap(character_map_file);
     Config::write_bool("KeyboardSettings", "StartupEnable", "NumLock", m_num_lock_checkbox->is_checked());
 }
 
-void KeyboardSettingsWidget::set_keymap(String const& keymap_filename)
+void KeyboardSettingsWidget::set_keymaps(Vector<String> const& keymaps)
 {
     pid_t child_pid;
-    const char* argv[] = { "/bin/keymap", keymap_filename.characters(), nullptr };
+
+    auto keymaps_string = String::join(',', keymaps);
+    const char* argv[] = { "/bin/keymap", "-s", keymaps_string.characters(), nullptr };
     if ((errno = posix_spawn(&child_pid, "/bin/keymap", nullptr, nullptr, const_cast<char**>(argv), environ))) {
         perror("posix_spawn");
         exit(1);

Userland/Applications/KeyboardSettings/KeyboardSettingsWidget.h

@@ -6,11 +6,13 @@
 
 #pragma once
 
+#include <AK/Vector.h>
 #include <LibGUI/Button.h>
 #include <LibGUI/CheckBox.h>
-#include <LibGUI/ComboBox.h>
+#include <LibGUI/ListView.h>
 #include <LibGUI/SettingsWindow.h>
 #include <LibGUI/TextEditor.h>
+#include <LibGUI/WindowManagerServerConnection.h>
 
 class KeyboardSettingsWidget final : public GUI::SettingsWindow::Tab {
     C_OBJECT(KeyboardSettingsWidget)
@@ -19,16 +21,21 @@ public:
 
     virtual void apply_settings() override;
 
+    void window_activated(bool is_active_window);
+
 private:
     KeyboardSettingsWidget();
 
-    void set_keymap(String const& keymap_filename);
+    void set_keymaps(Vector<String> const& keymaps);
+
+    Vector<String> m_initial_keymap_list;
 
     String m_current_applied_keymap;
-    Vector<String> m_character_map_files;
 
-    RefPtr<GUI::ComboBox> m_character_map_file_combo;
+    RefPtr<GUI::ListView> m_selected_keymaps_listview;
+    RefPtr<GUI::CheckBox> m_num_lock_checkbox;
+    RefPtr<GUI::Button> m_add_keymap_button;
+    RefPtr<GUI::Button> m_remove_keymap_button;
     RefPtr<GUI::TextEditor> m_test_typing_area;
     RefPtr<GUI::Button> m_clear_test_typing_area_button;
-    RefPtr<GUI::CheckBox> m_num_lock_checkbox;
 };

Userland/Applications/KeyboardSettings/KeymapDialog.gml

@@ -0,0 +1,33 @@
+@GUI::Widget {
+    fill_with_background_color: true
+
+    layout: @GUI::VerticalBoxLayout {
+        margins: [4]
+    }
+
+    @GUI::ComboBox {
+        name: "keymaps_combobox"
+    }
+
+    @GUI::Widget {
+        fixed_height: 24
+
+        layout: @GUI::HorizontalBoxLayout {
+        }
+
+        @GUI::Widget {
+        }
+
+        @GUI::Button {
+            name: "ok_button"
+            text: "OK"
+            fixed_width: 75
+        }
+
+        @GUI::Button {
+            name: "cancel_button"
+            text: "Cancel"
+            fixed_width: 75
+        }
+    }
+}

Userland/Applications/KeyboardSettings/main.cpp

@@ -9,7 +9,6 @@
 #include <LibCore/System.h>
 #include <LibGUI/Application.h>
 #include <LibGUI/SettingsWindow.h>
-#include <LibGUI/WindowServerConnection.h>
 #include <LibMain/Main.h>
 
 // Including this after to avoid LibIPC errors
@@ -25,13 +24,18 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     TRY(Core::System::unveil("/res", "r"));
     TRY(Core::System::unveil("/bin/keymap", "x"));
     TRY(Core::System::unveil("/proc/keymap", "r"));
+    TRY(Core::System::unveil("/etc/Keyboard.ini", "r"));
     TRY(Core::System::unveil(nullptr, nullptr));
 
     auto app_icon = GUI::Icon::default_icon("app-keyboard-settings");
 
     auto window = TRY(GUI::SettingsWindow::create("Keyboard Settings"));
     window->set_icon(app_icon.bitmap_for_size(16));
-    (void)TRY(window->add_tab<KeyboardSettingsWidget>("Keyboard"));
+    auto keyboard_settings_widget = TRY(window->add_tab<KeyboardSettingsWidget>("Keyboard"));
+
+    window->on_active_window_change = [&](bool is_active_window) {
+        keyboard_settings_widget->window_activated(is_active_window);
+    };
 
     window->show();
     return app->exec();

Userland/Services/KeyboardPreferenceLoader/main.cpp

@@ -24,10 +24,12 @@ ErrorOr<int> serenity_main(Main::Arguments)
     TRY(Core::System::unveil("/dev/keyboard0", "r"));
     TRY(Core::System::unveil(nullptr, nullptr));
     auto mapper_config(Core::ConfigFile::open("/etc/Keyboard.ini"));
-    auto keymap = mapper_config->read_entry("Mapping", "Keymap", "");
+    auto keymaps = mapper_config->read_entry("Mapping", "Keymaps", "");
+
+    auto keymaps_vector = keymaps.split(',');
 
     pid_t child_pid;
-    const char* argv[] = { "/bin/keymap", keymap.characters(), nullptr };
+    const char* argv[] = { "/bin/keymap", "-m", keymaps_vector.first().characters(), nullptr };
     if ((errno = posix_spawn(&child_pid, "/bin/keymap", nullptr, nullptr, const_cast<char**>(argv), environ))) {
         perror("posix_spawn");
         exit(1);

Userland/Services/WindowServer/KeymapSwitcher.cpp

@@ -5,6 +5,7 @@
  */
 
 #include <AK/JsonObject.h>
+#include <LibCore/ConfigFile.h>
 #include <LibCore/File.h>
 #include <WindowServer/KeymapSwitcher.h>
 #include <spawn.h>
@@ -14,6 +15,15 @@ namespace WindowServer {
 
 KeymapSwitcher::KeymapSwitcher()
 {
+    m_file_watcher = MUST(Core::FileWatcher::create());
+
+    m_file_watcher->on_change = [this](auto&) {
+        refresh();
+    };
+
+    MUST(m_file_watcher->add_watch(m_keyboard_config, Core::FileWatcherEvent::Type::ContentModified));
+
+    refresh();
 }
 
 KeymapSwitcher::~KeymapSwitcher()
@@ -24,15 +34,34 @@ void KeymapSwitcher::refresh()
 {
     m_keymaps.clear();
 
-    //TODO: load keymaps from file
-    m_keymaps.append("en-us");
-    m_keymaps.append("ru");
+    auto mapper_config(Core::ConfigFile::open(m_keyboard_config));
+    auto keymaps = mapper_config->read_entry("Mapping", "Keymaps", "");
+
+    auto keymaps_vector = keymaps.split(',');
+
+    for (auto& keymap : keymaps_vector) {
+        m_keymaps.append(keymap);
+    }
+
+    if (m_keymaps.is_empty()) {
+        dbgln("Empty list of keymaps - adding default (en-us)");
+        m_keymaps.append("en-us");
+    }
+
+    auto current_keymap = get_current_keymap();
+
+    // Refresh might indicate that some external program has changed the keymap,
+    // so better notify our clients that we may have a new keymap
+    if (on_keymap_change)
+        on_keymap_change(current_keymap);
+
+    if (m_keymaps.find(current_keymap).is_end()) {
+        setkeymap(m_keymaps.first());
+    }
 }
 
 void KeymapSwitcher::next_keymap()
 {
-    refresh();
-
     if (m_keymaps.is_empty()) {
         dbgln("No keymaps loaded - leaving system keymap unchanged");
         return; // TODO: figure out what to do when there is no keymap configured
@@ -77,7 +106,7 @@ String KeymapSwitcher::get_current_keymap() const
 void KeymapSwitcher::setkeymap(const AK::String& keymap)
 {
     pid_t child_pid;
-    const char* argv[] = { "/bin/keymap", keymap.characters(), nullptr };
+    const char* argv[] = { "/bin/keymap", "-m", keymap.characters(), nullptr };
     if ((errno = posix_spawn(&child_pid, "/bin/keymap", nullptr, nullptr, const_cast<char**>(argv), environ))) {
         perror("posix_spawn");
         dbgln("Failed to call /bin/keymap, error: {} ({})", errno, strerror(errno));

Userland/Services/WindowServer/KeymapSwitcher.h

@@ -9,6 +9,7 @@
 #include <AK/String.h>
 #include <AK/Vector.h>
 #include <AK/WeakPtr.h>
+#include <LibCore/FileWatcher.h>
 #include <LibCore/Object.h>
 #include <LibKeyboard/CharacterMap.h>
 #include <WindowServer/WMClientConnection.h>
@@ -20,8 +21,6 @@ class KeymapSwitcher final : public Core::Object {
 public:
     virtual ~KeymapSwitcher() override;
 
-    void refresh();
-
     void next_keymap();
 
     Function<void(String const& keymap)> on_keymap_change;
@@ -29,11 +28,17 @@ public:
     String get_current_keymap() const;
 
 private:
+    void refresh();
+
     KeymapSwitcher();
 
     Vector<AK::String> m_keymaps;
 
     void setkeymap(AK::String const&);
+
+    RefPtr<Core::FileWatcher> m_file_watcher;
+
+    const char* m_keyboard_config = "/etc/Keyboard.ini";
 };
 
 }

Userland/Services/WindowServer/main.cpp

@@ -25,6 +25,7 @@ ErrorOr<int> serenity_main(Main::Arguments)
     TRY(Core::System::unveil("/res", "r"));
     TRY(Core::System::unveil("/tmp", "cw"));
     TRY(Core::System::unveil("/etc/WindowServer.ini", "rwc"));
+    TRY(Core::System::unveil("/etc/Keyboard.ini", "r"));
     TRY(Core::System::unveil("/dev", "rw"));
     TRY(Core::System::unveil("/bin/keymap", "x"));
     TRY(Core::System::unveil("/proc/keymap", "r"));

Userland/Utilities/keymap.cpp

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/String.h>
+#include <AK/Vector.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/ConfigFile.h>
 #include <LibCore/System.h>
@@ -11,44 +13,96 @@
 #include <LibMain/Main.h>
 #include <stdio.h>
 
-ErrorOr<int> serenity_main(Main::Arguments arguments)
+int set_keymap(String const& keymap);
+
+int set_keymap(String const& keymap)
 {
-    TRY(Core::System::pledge("stdio setkeymap getkeymap rpath wpath cpath"));
-    TRY(Core::System::unveil("/res/keymaps", "r"));
-    TRY(Core::System::unveil("/etc/Keyboard.ini", "rwc"));
-
-    const char* path = nullptr;
-    Core::ArgsParser args_parser;
-    args_parser.add_positional_argument(path, "The mapping file to be used", "file", Core::ArgsParser::Required::No);
-    args_parser.parse(arguments);
-
-    if (path && path[0] == '/')
-        TRY(Core::System::unveil(path, "r"));
-
-    TRY(Core::System::unveil(nullptr, nullptr));
-
-    if (!path) {
-        auto keymap = TRY(Keyboard::CharacterMap::fetch_system_map());
-        outln("{}", keymap.character_map_name());
-        return 0;
-    }
-
-    auto character_map = Keyboard::CharacterMap::load_from_file(path);
+    auto character_map = Keyboard::CharacterMap::load_from_file(keymap);
     if (character_map.is_error()) {
-        warnln("Cannot read keymap {}", path);
-        warnln("Hint: Must be either a keymap name (e.g. 'en-us') or a full path.");
+        warnln("Cannot read keymap {}", keymap);
+        warnln("Hint: Must be a keymap name (e.g. 'en-us')");
         return 1;
     }
 
     int rc = character_map.value().set_system_map();
     if (rc != 0) {
         perror("setkeymap");
-        return rc;
     }
 
-    auto mapper_config(Core::ConfigFile::open("/etc/Keyboard.ini", Core::ConfigFile::AllowWriting::Yes));
-    mapper_config->write_entry("Mapping", "Keymap", path);
-    mapper_config->sync();
-
     return rc;
 }
+
+ErrorOr<int> serenity_main(Main::Arguments arguments)
+{
+    TRY(Core::System::pledge("stdio setkeymap getkeymap rpath wpath cpath"));
+    TRY(Core::System::unveil("/res/keymaps", "r"));
+    TRY(Core::System::unveil("/etc/Keyboard.ini", "rwc"));
+
+    String mapping;
+    String mappings;
+    Core::ArgsParser args_parser;
+    args_parser.add_option(mapping, "The mapping to be used", "set-keymap", 'm', "keymap");
+    args_parser.add_option(mappings, "Comma separated list of enabled mappings", "set-keymaps", 's', "keymaps");
+    args_parser.parse(arguments);
+
+    TRY(Core::System::unveil(nullptr, nullptr));
+
+    if (mapping.is_empty() && mappings.is_empty()) {
+        auto keymap = TRY(Keyboard::CharacterMap::fetch_system_map());
+        outln("{}", keymap.character_map_name());
+        return 0;
+    }
+
+    auto mapper_config(Core::ConfigFile::open("/etc/Keyboard.ini", Core::ConfigFile::AllowWriting::Yes));
+
+    int rc = 0;
+
+    if (!mappings.is_empty()) {
+        auto mappings_vector = mappings.split(',');
+
+        if (mappings_vector.is_empty()) {
+            warnln("Keymaps list should not be empty");
+            return 1;
+        }
+
+        // Verify that all specified keymaps are loadable
+        for (auto& keymap_name : mappings_vector) {
+            auto keymap = Keyboard::CharacterMap::load_from_file(keymap_name);
+            if (keymap.is_error()) {
+                warnln("Cannot load keymap {}: {}({})", keymap_name, keymap.error().string_literal(), keymap.error().code());
+                return keymap.error();
+            }
+        }
+
+        auto keymaps = String::join(',', mappings_vector);
+        mapper_config->write_entry("Mapping", "Keymaps", keymaps);
+        mapper_config->sync();
+        rc = set_keymap(mappings_vector.first());
+        if (rc != 0) {
+            return rc;
+        }
+    }
+
+    auto keymaps = mapper_config->read_entry("Mapping", "Keymaps");
+    auto keymaps_vector = keymaps.split(',');
+
+    if (!mapping.is_empty()) {
+        if (keymaps_vector.is_empty()) {
+            warnln("No keymaps configured - writing default configurations (en-us)");
+            mapper_config->write_entry("Mapping", "Keymaps", "en-us");
+            mapper_config->sync();
+            keymaps_vector.append("en-us");
+        }
+
+        if (!keymaps_vector.find(mapping).is_end()) {
+            rc = set_keymap(mapping);
+            if (rc != 0) {
+                return rc;
+            }
+        } else {
+            warnln("Keymap '{}' is not in list of configured keymaps ({})", mapping, keymaps);
+        }
+    }
+
+    return 0;
+}