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https://github.com/RGBCube/serenity
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160bda7228
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
238 lines
8.3 KiB
C++
238 lines
8.3 KiB
C++
/*
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* Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
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* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "KeyboardSettingsWidget.h"
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#include <AK/JsonObject.h>
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#include <AK/QuickSort.h>
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#include <Applications/KeyboardSettings/KeyboardWidgetGML.h>
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#include <Applications/KeyboardSettings/KeymapDialogGML.h>
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#include <LibConfig/Client.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/File.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/ComboBox.h>
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#include <LibGUI/Dialog.h>
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#include <LibGUI/ItemListModel.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/MessageBox.h>
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#include <LibGUI/Model.h>
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#include <LibGUI/Widget.h>
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#include <LibGUI/Window.h>
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#include <LibKeyboard/CharacterMap.h>
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#include <spawn.h>
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class KeymapSelectionDialog final : public GUI::Dialog {
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C_OBJECT(KeymapSelectionDialog)
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public:
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virtual ~KeymapSelectionDialog() override = default;
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static String select_keymap(Window* parent_window, Vector<String> const& selected_keymaps)
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{
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auto dialog = KeymapSelectionDialog::construct(parent_window, selected_keymaps);
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dialog->set_title("Add a keymap");
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if (dialog->exec() == GUI::Dialog::ExecOK) {
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return dialog->selected_keymap();
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}
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return String::empty();
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}
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String selected_keymap() { return m_selected_keymap; }
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private:
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KeymapSelectionDialog(Window* parent_window, Vector<String> const& selected_keymaps)
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: Dialog(parent_window)
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{
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auto& widget = set_main_widget<GUI::Widget>();
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if (!widget.load_from_gml(keymap_dialog_gml))
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VERIFY_NOT_REACHED();
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set_resizable(false);
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resize(190, 54);
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set_icon(parent_window->icon());
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Core::DirIterator iterator("/res/keymaps/", Core::DirIterator::Flags::SkipDots);
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if (iterator.has_error()) {
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GUI::MessageBox::show(nullptr, String::formatted("Error on reading mapping file list: {}", iterator.error_string()), "Keyboard settings", GUI::MessageBox::Type::Error);
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GUI::Application::the()->quit(-1);
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}
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while (iterator.has_next()) {
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auto name = iterator.next_path();
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auto basename = name.replace(".json", "");
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if (!selected_keymaps.find(basename).is_end())
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continue;
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m_character_map_files.append(basename);
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}
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quick_sort(m_character_map_files);
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m_selected_keymap = m_character_map_files.first();
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m_keymaps_combobox = *widget.find_descendant_of_type_named<GUI::ComboBox>("keymaps_combobox");
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m_keymaps_combobox->set_only_allow_values_from_model(true);
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m_keymaps_combobox->set_model(*GUI::ItemListModel<String>::create(m_character_map_files));
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m_keymaps_combobox->set_selected_index(0);
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m_keymaps_combobox->on_change = [&](auto& keymap, auto) {
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m_selected_keymap = keymap;
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};
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auto& ok_button = *widget.find_descendant_of_type_named<GUI::Button>("ok_button");
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ok_button.on_click = [this](auto) {
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done(Dialog::ExecOK);
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};
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auto& cancel_button = *widget.find_descendant_of_type_named<GUI::Button>("cancel_button");
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cancel_button.on_click = [this](auto) {
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done(Dialog::ExecCancel);
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};
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}
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RefPtr<GUI::ComboBox> m_keymaps_combobox;
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Vector<String> m_character_map_files;
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String m_selected_keymap;
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};
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class KeymapModel final : public GUI::Model {
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public:
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KeymapModel() {};
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int row_count(GUI::ModelIndex const&) const override { return m_data.size(); }
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int column_count(GUI::ModelIndex const&) const override { return 1; }
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GUI::Variant data(GUI::ModelIndex const& index, GUI::ModelRole) const override
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{
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return m_data.at(index.row());
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}
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void remove_at(size_t index)
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{
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m_data.remove(index);
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invalidate();
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}
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void add_keymap(String const& keymap)
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{
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m_data.append(keymap);
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invalidate();
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}
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Vector<String> const& keymaps() const { return m_data; }
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private:
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Vector<String> m_data;
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};
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KeyboardSettingsWidget::KeyboardSettingsWidget()
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{
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load_from_gml(keyboard_widget_gml);
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auto proc_keymap = Core::File::construct("/proc/keymap");
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if (!proc_keymap->open(Core::OpenMode::ReadOnly))
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VERIFY_NOT_REACHED();
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auto json = JsonValue::from_string(proc_keymap->read_all()).release_value_but_fixme_should_propagate_errors();
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auto const& keymap_object = json.as_object();
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VERIFY(keymap_object.has("keymap"));
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m_current_applied_keymap = keymap_object.get("keymap").to_string();
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dbgln("KeyboardSettings thinks the current keymap is: {}", m_current_applied_keymap);
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auto mapper_config(Core::ConfigFile::open("/etc/Keyboard.ini"));
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auto keymaps = mapper_config->read_entry("Mapping", "Keymaps", "");
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auto keymaps_vector = keymaps.split(',');
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m_selected_keymaps_listview = find_descendant_of_type_named<GUI::ListView>("selected_keymaps");
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m_selected_keymaps_listview->horizontal_scrollbar().set_visible(false);
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m_selected_keymaps_listview->set_model(adopt_ref(*new KeymapModel()));
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auto& keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
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for (auto& keymap : keymaps_vector) {
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m_initial_keymap_list.append(keymap);
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keymaps_list_model.add_keymap(keymap);
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}
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m_add_keymap_button = find_descendant_of_type_named<GUI::Button>("add_keymap_button");
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m_add_keymap_button->on_click = [&](auto) {
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auto keymap = KeymapSelectionDialog::select_keymap(window(), keymaps_list_model.keymaps());
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keymaps_list_model.add_keymap(keymap);
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};
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m_remove_keymap_button = find_descendant_of_type_named<GUI::Button>("remove_keymap_button");
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m_remove_keymap_button->on_click = [&](auto) {
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auto& selection = m_selected_keymaps_listview->selection();
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for (auto& index : selection.indices()) {
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keymaps_list_model.remove_at(index.row());
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}
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};
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m_selected_keymaps_listview->on_selection_change = [&]() {
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auto& selection = m_selected_keymaps_listview->selection();
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m_remove_keymap_button->set_enabled(!selection.is_empty() && keymaps_list_model.keymaps().size() > 1);
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};
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m_test_typing_area = *find_descendant_of_type_named<GUI::TextEditor>("test_typing_area");
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m_test_typing_area->on_focusin = [&]() {
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set_keymaps(keymaps_list_model.keymaps());
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};
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m_test_typing_area->on_focusout = [&]() {
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set_keymaps(m_initial_keymap_list);
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};
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m_clear_test_typing_area_button = find_descendant_of_type_named<GUI::Button>("button_clear_test_typing_area");
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m_clear_test_typing_area_button->on_click = [this](auto) {
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m_test_typing_area->clear();
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m_test_typing_area->set_focus(true);
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};
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m_num_lock_checkbox = find_descendant_of_type_named<GUI::CheckBox>("num_lock_checkbox");
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m_num_lock_checkbox->set_checked(Config::read_bool("KeyboardSettings", "StartupEnable", "NumLock", true));
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}
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KeyboardSettingsWidget::~KeyboardSettingsWidget()
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{
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set_keymaps(m_initial_keymap_list);
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}
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void KeyboardSettingsWidget::window_activated(bool is_active_window)
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{
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if (is_active_window && m_test_typing_area->is_focused()) {
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auto& keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
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set_keymaps(keymaps_list_model.keymaps());
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} else {
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set_keymaps(m_initial_keymap_list);
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}
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}
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void KeyboardSettingsWidget::apply_settings()
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{
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auto& m_keymaps_list_model = static_cast<KeymapModel&>(*m_selected_keymaps_listview->model());
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set_keymaps(m_keymaps_list_model.keymaps());
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m_initial_keymap_list.clear();
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for (auto& keymap : m_keymaps_list_model.keymaps()) {
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m_initial_keymap_list.append(keymap);
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}
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Config::write_bool("KeyboardSettings", "StartupEnable", "NumLock", m_num_lock_checkbox->is_checked());
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}
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void KeyboardSettingsWidget::set_keymaps(Vector<String> const& keymaps)
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{
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pid_t child_pid;
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auto keymaps_string = String::join(',', keymaps);
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const char* argv[] = { "/bin/keymap", "-s", keymaps_string.characters(), nullptr };
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if ((errno = posix_spawn(&child_pid, "/bin/keymap", nullptr, nullptr, const_cast<char**>(argv), environ))) {
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perror("posix_spawn");
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exit(1);
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}
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}
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