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#include <Kernel/KeyCode.h>
#include <LibCore/CArgsParser.h>
#include <LibCore/CUserInfo.h>
#include <LibDraw/PNGLoader.h>
#include <LibGUI/GAboutDialog.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GActionGroup.h>
#include <LibGUI/GApplication.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GFontDatabase.h>
#include <LibGUI/GGroupBox.h>
#include <LibGUI/GMenuBar.h>
#include <LibGUI/GRadioButton.h>
#include <LibGUI/GSlider.h>
#include <LibGUI/GWidget.h>
#include <LibGUI/GWindow.h>
#include <LibVT/TerminalWidget.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <unistd.h>
static void run_command(int ptm_fd, String command)
{
pid_t pid = fork();
if (pid == 0) {
const char* tty_name = ptsname(ptm_fd);
if (!tty_name) {
perror("ptsname");
exit(1);
}
close(ptm_fd);
int pts_fd = open(tty_name, O_RDWR);
if (pts_fd < 0) {
perror("open");
exit(1);
}
// NOTE: It's okay if this fails.
(void)ioctl(0, TIOCNOTTY);
close(0);
close(1);
close(2);
int rc = dup2(pts_fd, 0);
if (rc < 0) {
perror("dup2");
exit(1);
}
rc = dup2(pts_fd, 1);
if (rc < 0) {
perror("dup2");
exit(1);
}
rc = dup2(pts_fd, 2);
if (rc < 0) {
perror("dup2");
exit(1);
}
rc = close(pts_fd);
if (rc < 0) {
perror("close");
exit(1);
}
rc = ioctl(0, TIOCSCTTY);
if (rc < 0) {
perror("ioctl(TIOCSCTTY)");
exit(1);
}
const char* args[4] = { "/bin/Shell", nullptr, nullptr, nullptr };
if (!command.is_empty()) {
args[1] = "-c";
args[2] = command.characters();
}
const char* envs[] = { "TERM=xterm", "PATH=/bin:/usr/bin:/usr/local/bin", nullptr };
rc = execve("/bin/Shell", const_cast<char**>(args), const_cast<char**>(envs));
if (rc < 0) {
perror("execve");
exit(1);
}
ASSERT_NOT_REACHED();
}
}
RefPtr<GWindow> create_settings_window(TerminalWidget& terminal, RefPtr<CConfigFile> config)
{
auto window = GWindow::construct();
window->set_title("Terminal Settings");
window->set_rect(50, 50, 200, 140);
auto settings = GWidget::construct();
window->set_main_widget(settings);
settings->set_fill_with_background_color(true);
settings->set_background_role(ColorRole::Button);
settings->set_layout(make<GBoxLayout>(Orientation::Vertical));
settings->layout()->set_margins({ 4, 4, 4, 4 });
auto radio_container = GGroupBox::construct("Bell Mode", settings);
radio_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
radio_container->layout()->set_margins({ 6, 16, 6, 6 });
radio_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
radio_container->set_preferred_size(100, 70);
auto sysbell_radio = GRadioButton::construct("Use (Audible) System Bell", radio_container);
auto visbell_radio = GRadioButton::construct("Use (Visual) Terminal Bell", radio_container);
sysbell_radio->set_checked(terminal.should_beep());
visbell_radio->set_checked(!terminal.should_beep());
sysbell_radio->on_checked = [&terminal](const bool checked) {
terminal.set_should_beep(checked);
};
auto slider_container = GGroupBox::construct("Background Opacity", settings);
slider_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
slider_container->layout()->set_margins({ 6, 16, 6, 6 });
slider_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
slider_container->set_preferred_size(100, 50);
auto slider = GSlider::construct(Orientation::Horizontal, slider_container);
slider->on_value_changed = [&terminal, &config](int value) {
terminal.set_opacity(value);
};
slider->set_range(0, 255);
slider->set_value(terminal.opacity());
return window;
}
int main(int argc, char** argv)
{
if (pledge("stdio tty rpath cpath wpath shared_buffer proc exec unix fattr", nullptr) < 0) {
perror("pledge");
return 1;
}
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_flags = SA_NOCLDWAIT;
act.sa_handler = SIG_IGN;
int rc = sigaction(SIGCHLD, &act, nullptr);
if (rc < 0) {
perror("sigaction");
return 1;
}
GApplication app(argc, argv);
if (pledge("stdio tty rpath cpath wpath shared_buffer proc exec", nullptr) < 0) {
perror("pledge");
return 1;
}
CArgsParser args_parser("Terminal");
args_parser.add_arg("e", "execute", "Execute this command inside the terminal.");
CArgsParserResult args = args_parser.parse(argc, argv);
if (chdir(get_current_user_home_path().characters()) < 0)
perror("chdir");
int ptm_fd = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
if (ptm_fd < 0) {
perror("open(ptmx)");
return 1;
}
run_command(ptm_fd, args.get("e"));
auto window = GWindow::construct();
window->set_title("Terminal");
window->set_background_color(Color::Black);
window->set_double_buffering_enabled(false);
RefPtr<CConfigFile> config = CConfigFile::get_for_app("Terminal");
auto terminal = TerminalWidget::construct(ptm_fd, true, config);
terminal->on_command_exit = [&] {
app.quit(0);
};
terminal->on_title_change = [&](auto& title) {
window->set_title(title);
};
window->set_main_widget(terminal);
window->move_to(300, 300);
terminal->apply_size_increments_to_window(*window);
window->show();
window->set_icon(load_png("/res/icons/16x16/app-terminal.png"));
terminal->set_should_beep(config->read_bool_entry("Window", "AudibleBeep", false));
RefPtr<GWindow> settings_window;
auto new_opacity = config->read_num_entry("Window", "Opacity", 255);
terminal->set_opacity(new_opacity);
window->set_has_alpha_channel(new_opacity < 255);
auto menubar = make<GMenuBar>();
auto app_menu = GMenu::construct("Terminal");
app_menu->add_action(GAction::create("Open new terminal", { Mod_Ctrl | Mod_Shift, Key_N }, GraphicsBitmap::load_from_file("/res/icons/16x16/app-terminal.png"), [&](auto&) {
if (!fork()) {
execl("/bin/Terminal", "Terminal", nullptr);
exit(1);
}
}));
app_menu->add_action(GAction::create("Settings...", load_png("/res/icons/gear16.png"),
[&](const GAction&) {
if (!settings_window) {
settings_window = create_settings_window(*terminal, config);
settings_window->on_close_request = [&] {
settings_window = nullptr;
return GWindow::CloseRequestDecision::Close;
};
}
settings_window->show();
settings_window->move_to_front();
}));
app_menu->add_separator();
app_menu->add_action(GCommonActions::make_quit_action([](auto&) {
dbgprintf("Terminal: Quit menu activated!\n");
GApplication::the().quit(0);
}));
menubar->add_menu(move(app_menu));
auto edit_menu = GMenu::construct("Edit");
edit_menu->add_action(terminal->copy_action());
edit_menu->add_action(terminal->paste_action());
menubar->add_menu(move(edit_menu));
GActionGroup font_action_group;
font_action_group.set_exclusive(true);
auto font_menu = GMenu::construct("Font");
GFontDatabase::the().for_each_fixed_width_font([&](const StringView& font_name) {
auto action = GAction::create(font_name, [&](GAction& action) {
action.set_checked(true);
terminal->set_font(GFontDatabase::the().get_by_name(action.text()));
auto metadata = GFontDatabase::the().get_metadata_by_name(action.text());
ASSERT(metadata.has_value());
config->write_entry("Text", "Font", metadata.value().path);
config->sync();
terminal->force_repaint();
});
font_action_group.add_action(*action);
action->set_checkable(true);
if (terminal->font().name() == font_name)
action->set_checked(true);
font_menu->add_action(*action);
});
menubar->add_menu(move(font_menu));
auto help_menu = GMenu::construct("Help");
help_menu->add_action(GAction::create("About", [&](const GAction&) {
GAboutDialog::show("Terminal", load_png("/res/icons/32x32/app-terminal.png"), window);
}));
menubar->add_menu(move(help_menu));
app.set_menubar(move(menubar));
config->sync();
return app.exec();
}
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