ladybird/Applications/Terminal/main.cpp
Shannon Booth 6a3b12664a LibGUI: Move Icon and FontDatabase into the GUI namespace
We also clean up some old references to the old G prefixed GUI classes

This also fixes a potential bug with using: C_OBJECT_ABSTRACT(GAbstractButton)
instead of C_OBJECT_ABSTRACT(AbstractButton)
2020-03-07 01:33:53 +01:00

329 lines
11 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <Kernel/KeyCode.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/UserInfo.h>
#include <LibGUI/AboutDialog.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/FontDatabase.h>
#include <LibGUI/GroupBox.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuBar.h>
#include <LibGUI/RadioButton.h>
#include <LibGUI/Slider.h>
#include <LibGUI/Widget.h>
#include <LibGUI/Window.h>
#include <LibGfx/Font.h>
#include <LibGfx/Palette.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);
}
if (setsid() < 0) {
perror("setsid");
}
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);
}
String shell = "/bin/Shell";
auto* pw = getpwuid(getuid());
if (pw && pw->pw_shell) {
shell = pw->pw_shell;
}
endpwent();
const char* args[4] = { shell.characters(), nullptr, nullptr, nullptr };
if (!command.is_empty()) {
args[1] = "-c";
args[2] = command.characters();
}
const char* envs[] = { "PROMPT=\\X\\u@\\h:\\w\\a\\e[33;1m\\h\\e[0m \\e[32;1m\\w\\e[0m \\p ", "TERM=xterm", "PAGER=more", "PATH=/bin:/usr/bin:/usr/local/bin", nullptr };
rc = execve(shell.characters(), const_cast<char**>(args), const_cast<char**>(envs));
if (rc < 0) {
perror("execve");
exit(1);
}
ASSERT_NOT_REACHED();
}
}
RefPtr<GUI::Window> create_settings_window(TerminalWidget& terminal)
{
auto window = GUI::Window::construct();
window->set_title("Terminal Settings");
window->set_rect(50, 50, 200, 140);
window->set_modal(true);
auto& settings = window->set_main_widget<GUI::Widget>();
settings.set_fill_with_background_color(true);
settings.set_background_role(ColorRole::Button);
settings.set_layout<GUI::VerticalBoxLayout>();
settings.layout()->set_margins({ 4, 4, 4, 4 });
auto& radio_container = settings.add<GUI::GroupBox>("Bell Mode");
radio_container.set_layout<GUI::VerticalBoxLayout>();
radio_container.layout()->set_margins({ 6, 16, 6, 6 });
radio_container.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
radio_container.set_preferred_size(100, 70);
auto& sysbell_radio = radio_container.add<GUI::RadioButton>("Use (Audible) System Bell");
auto& visbell_radio = radio_container.add<GUI::RadioButton>("Use (Visual) Terminal Bell");
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 = settings.add<GUI::GroupBox>("Background Opacity");
slider_container.set_layout<GUI::VerticalBoxLayout>();
slider_container.layout()->set_margins({ 6, 16, 6, 6 });
slider_container.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
slider_container.set_preferred_size(100, 50);
auto& slider = slider_container.add<GUI::HorizontalSlider>();
slider.on_value_changed = [&terminal](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 accept 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;
}
GUI::Application app(argc, argv);
if (pledge("stdio tty rpath accept cpath wpath shared_buffer proc exec", nullptr) < 0) {
perror("pledge");
return 1;
}
const char* command_to_execute = nullptr;
Core::ArgsParser args_parser;
args_parser.add_option(command_to_execute, "Execute this command inside the terminal", nullptr, 'e', "command");
args_parser.parse(argc, argv);
if (chdir(get_current_user_home_path().characters()) < 0)
perror("chdir");
int ptm_fd = posix_openpt(O_RDWR | O_CLOEXEC);
if (ptm_fd < 0) {
perror("posix_openpt");
return 1;
}
if (grantpt(ptm_fd) < 0) {
perror("grantpt");
return 1;
}
if (unlockpt(ptm_fd) < 0) {
perror("unlockpt");
return 1;
}
run_command(ptm_fd, command_to_execute);
auto window = GUI::Window::construct();
window->set_title("Terminal");
window->set_background_color(Color::Black);
window->set_double_buffering_enabled(false);
RefPtr<Core::ConfigFile> config = Core::ConfigFile::get_for_app("Terminal");
auto& terminal = window->set_main_widget<TerminalWidget>(ptm_fd, true, config);
terminal.on_command_exit = [&] {
app.quit(0);
};
terminal.on_title_change = [&](auto& title) {
window->set_title(title);
};
window->move_to(300, 300);
terminal.apply_size_increments_to_window(*window);
window->show();
window->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-terminal.png"));
terminal.set_should_beep(config->read_bool_entry("Window", "AudibleBeep", false));
RefPtr<GUI::Window> 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<GUI::MenuBar>();
auto app_menu = GUI::Menu::construct("Terminal");
app_menu->add_action(GUI::Action::create("Open new terminal", { Mod_Ctrl | Mod_Shift, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/app-terminal.png"), [&](auto&) {
if (!fork()) {
execl("/bin/Terminal", "Terminal", nullptr);
exit(1);
}
}));
app_menu->add_action(GUI::Action::create("Settings...", Gfx::Bitmap::load_from_file("/res/icons/gear16.png"),
[&](const GUI::Action&) {
if (!settings_window) {
settings_window = create_settings_window(terminal);
settings_window->on_close_request = [&] {
settings_window = nullptr;
return GUI::Window::CloseRequestDecision::Close;
};
}
settings_window->show();
settings_window->move_to_front();
}));
app_menu->add_separator();
app_menu->add_action(GUI::CommonActions::make_quit_action([](auto&) {
dbgprintf("Terminal: Quit menu activated!\n");
GUI::Application::the().quit(0);
}));
menubar->add_menu(move(app_menu));
auto edit_menu = GUI::Menu::construct("Edit");
edit_menu->add_action(terminal.copy_action());
edit_menu->add_action(terminal.paste_action());
menubar->add_menu(move(edit_menu));
GUI::ActionGroup font_action_group;
font_action_group.set_exclusive(true);
auto font_menu = GUI::Menu::construct("Font");
GUI::FontDatabase::the().for_each_fixed_width_font([&](const StringView& font_name) {
auto action = GUI::Action::create(font_name, [&](GUI::Action& action) {
action.set_checked(true);
terminal.set_font(GUI::FontDatabase::the().get_by_name(action.text()));
auto metadata = GUI::FontDatabase::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 = GUI::Menu::construct("Help");
help_menu->add_action(GUI::Action::create("About", [&](const GUI::Action&) {
GUI::AboutDialog::show("Terminal", Gfx::Bitmap::load_from_file("/res/icons/32x32/app-terminal.png"), window);
}));
menubar->add_menu(move(help_menu));
app.set_menubar(move(menubar));
if (unveil("/res", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/bin/Terminal", "x") < 0) {
perror("unveil");
return 1;
}
if (unveil(config->file_name().characters(), "rwc")) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
config->sync();
return app.exec();
}