ladybird/Userland/Applications/KeyboardMapper/KeyboardMapperWidget.cpp
2023-02-13 00:50:07 +00:00

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/*
* Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
* Copyright (c) 2021, Rasmus Nylander <RasmusNylander.SerenityOS@gmail.com>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "KeyboardMapperWidget.h"
#include "KeyPositions.h"
#include <LibCore/File.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/InputBox.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/RadioButton.h>
#include <LibKeyboard/CharacterMap.h>
#include <LibKeyboard/CharacterMapFile.h>
KeyboardMapperWidget::KeyboardMapperWidget()
{
create_frame();
}
bool KeyboardMapperWidget::request_close()
{
if (!window()->is_modified())
return true;
auto result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_filename);
if (result == GUI::MessageBox::ExecResult::Yes) {
if (auto error_or = save(); error_or.is_error())
show_error_to_user(error_or.release_error());
if (!window()->is_modified())
return true;
}
return result == GUI::MessageBox::ExecResult::No;
}
void KeyboardMapperWidget::create_frame()
{
set_fill_with_background_color(true);
set_layout<GUI::VerticalBoxLayout>();
layout()->set_margins(4);
auto& main_widget = add<GUI::Widget>();
main_widget.set_relative_rect(0, 0, 200, 200);
m_keys.resize(KEY_COUNT);
for (unsigned i = 0; i < KEY_COUNT; i++) {
Gfx::IntRect rect = { keys[i].x, keys[i].y, keys[i].width, keys[i].height };
auto& tmp_button = main_widget.add<KeyButton>();
tmp_button.set_relative_rect(rect);
tmp_button.set_text(String::from_deprecated_string(keys[i].name).release_value_but_fixme_should_propagate_errors());
tmp_button.set_enabled(keys[i].enabled);
tmp_button.on_click = [this, &tmp_button]() {
DeprecatedString value;
if (GUI::InputBox::show(window(), value, "New Character:"sv, "Select Character"sv) == GUI::InputBox::ExecResult::OK) {
int i = m_keys.find_first_index(&tmp_button).value_or(0);
VERIFY(i > 0);
auto index = keys[i].map_index;
VERIFY(index > 0);
tmp_button.set_text(String::from_deprecated_string(value).release_value_but_fixme_should_propagate_errors());
u32* map = map_from_name(m_current_map_name);
if (value.length() == 0)
map[index] = '\0'; // Empty string
else
map[index] = value[0];
window()->set_modified(true);
}
};
m_keys.insert(i, &tmp_button);
}
// Action Buttons
auto& bottom_widget = add<GUI::Widget>();
bottom_widget.set_layout<GUI::HorizontalBoxLayout>();
bottom_widget.set_fixed_height(40);
// Map Selection
m_map_group = bottom_widget.add<GUI::Widget>();
m_map_group->set_layout<GUI::HorizontalBoxLayout>();
m_map_group->set_fixed_width(450);
add_map_radio_button("map"sv, String::from_utf8_short_string("Default"sv));
add_map_radio_button("shift_map"sv, String::from_utf8_short_string("Shift"sv));
add_map_radio_button("altgr_map"sv, String::from_utf8_short_string("AltGr"sv));
add_map_radio_button("alt_map"sv, String::from_utf8_short_string("Alt"sv));
add_map_radio_button("shift_altgr_map"sv, String::from_utf8("Shift+AltGr"sv).release_value_but_fixme_should_propagate_errors());
bottom_widget.layout()->add_spacer();
}
void KeyboardMapperWidget::add_map_radio_button(const StringView map_name, String button_text)
{
auto& map_radio_button = m_map_group->add<GUI::RadioButton>(button_text);
map_radio_button.set_name(map_name);
map_radio_button.on_checked = [map_name, this](bool) {
set_current_map(map_name);
};
}
u32* KeyboardMapperWidget::map_from_name(const StringView map_name)
{
u32* map;
if (map_name == "map"sv) {
map = m_character_map.map;
} else if (map_name == "shift_map"sv) {
map = m_character_map.shift_map;
} else if (map_name == "alt_map"sv) {
map = m_character_map.alt_map;
} else if (map_name == "altgr_map"sv) {
map = m_character_map.altgr_map;
} else if (map_name == "shift_altgr_map"sv) {
map = m_character_map.shift_altgr_map;
} else {
VERIFY_NOT_REACHED();
}
return map;
}
ErrorOr<void> KeyboardMapperWidget::load_map_from_file(DeprecatedString const& filename)
{
auto character_map = TRY(Keyboard::CharacterMapFile::load_from_file(filename));
m_filename = filename;
m_character_map = character_map;
set_current_map("map");
for (auto& widget : m_map_group->child_widgets()) {
auto& radio_button = static_cast<GUI::RadioButton&>(widget);
radio_button.set_checked(radio_button.name() == "map");
}
window()->set_modified(false);
update_window_title();
return {};
}
ErrorOr<void> KeyboardMapperWidget::load_map_from_system()
{
auto character_map = TRY(Keyboard::CharacterMap::fetch_system_map());
m_filename = DeprecatedString::formatted("/res/keymaps/{}.json", character_map.character_map_name());
m_character_map = character_map.character_map_data();
set_current_map("map");
for (auto& widget : m_map_group->child_widgets()) {
auto& radio_button = static_cast<GUI::RadioButton&>(widget);
radio_button.set_checked(radio_button.name() == "map");
}
update_window_title();
return {};
}
ErrorOr<void> KeyboardMapperWidget::save()
{
return save_to_file(m_filename);
}
ErrorOr<void> KeyboardMapperWidget::save_to_file(StringView filename)
{
JsonObject map_json;
auto add_array = [&](DeprecatedString name, u32* values) {
JsonArray items;
for (int i = 0; i < 90; i++) {
StringBuilder sb;
if (values[i])
sb.append_code_point(values[i]);
JsonValue val(sb.to_deprecated_string());
items.append(move(val));
}
map_json.set(name, move(items));
};
add_array("map", m_character_map.map);
add_array("shift_map", m_character_map.shift_map);
add_array("alt_map", m_character_map.alt_map);
add_array("altgr_map", m_character_map.altgr_map);
add_array("shift_altgr_map", m_character_map.shift_altgr_map);
// Write to file.
DeprecatedString file_content = map_json.to_deprecated_string();
auto file = TRY(Core::File::open(filename, Core::File::OpenMode::Write));
TRY(file->write(file_content.bytes()));
file->close();
window()->set_modified(false);
m_filename = filename;
update_window_title();
return {};
}
void KeyboardMapperWidget::keydown_event(GUI::KeyEvent& event)
{
for (int i = 0; i < KEY_COUNT; i++) {
if (keys[i].scancode != event.scancode())
continue;
auto& tmp_button = m_keys.at(i);
tmp_button->set_pressed(true);
tmp_button->update();
break;
}
if (m_automatic_modifier && event.modifiers() > 0) {
update_modifier_radio_buttons(event);
}
event.ignore();
}
void KeyboardMapperWidget::keyup_event(GUI::KeyEvent& event)
{
for (int i = 0; i < KEY_COUNT; i++) {
if (keys[i].scancode != event.scancode())
continue;
auto& tmp_button = m_keys.at(i);
tmp_button->set_pressed(false);
tmp_button->update();
break;
}
if (m_automatic_modifier) {
update_modifier_radio_buttons(event);
}
}
void KeyboardMapperWidget::set_current_map(const DeprecatedString current_map)
{
m_current_map_name = current_map;
u32* map = map_from_name(m_current_map_name);
for (unsigned k = 0; k < KEY_COUNT; k++) {
auto index = keys[k].map_index;
if (index == 0)
continue;
StringBuilder sb;
sb.append_code_point(map[index]);
m_keys.at(k)->set_text(sb.to_string().release_value_but_fixme_should_propagate_errors());
}
this->update();
}
void KeyboardMapperWidget::update_window_title()
{
StringBuilder sb;
sb.append(m_filename);
sb.append("[*] - Keyboard Mapper"sv);
window()->set_title(sb.to_deprecated_string());
}
void KeyboardMapperWidget::show_error_to_user(Error error)
{
GUI::MessageBox::show_error(window(), error.string_literal());
}
void KeyboardMapperWidget::set_automatic_modifier(bool checked)
{
m_automatic_modifier = checked;
}
void KeyboardMapperWidget::update_modifier_radio_buttons(GUI::KeyEvent& event)
{
GUI::RadioButton* radio_button;
if (event.shift() && event.altgr()) {
radio_button = m_map_group->find_child_of_type_named<GUI::RadioButton>("shift_altgr_map");
} else if (event.altgr()) {
radio_button = m_map_group->find_child_of_type_named<GUI::RadioButton>("altgr_map");
} else if (event.alt()) {
radio_button = m_map_group->find_child_of_type_named<GUI::RadioButton>("alt_map");
} else if (event.shift()) {
radio_button = m_map_group->find_child_of_type_named<GUI::RadioButton>("shift_map");
} else {
radio_button = m_map_group->find_child_of_type_named<GUI::RadioButton>("map");
}
if (radio_button)
radio_button->set_checked(true);
}