ladybird/Userland/Applications/Help/main.cpp
thankyouverycool 8825abe7ed Help: Convert to GML and propagate more errors
Converts Help's layout to GML, propagates model and icon creation
errors, and switches to the MainWidget-namespace organization
pattern seen in more up-to-date apps like TextEditor to make things
easier to maintain going forward.
2022-03-02 21:37:58 +01:00

82 lines
2.8 KiB
C++

/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "MainWidget.h"
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibGUI/Application.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Window.h>
#include <LibMain/Main.h>
using namespace Help;
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio recvfd sendfd rpath unix"));
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Core::System::unveil("/res", "r"));
TRY(Core::System::unveil("/usr/share/man", "r"));
TRY(Core::System::unveil("/tmp/portal/launch", "rw"));
TRY(Core::System::unveil("/tmp/portal/webcontent", "rw"));
TRY(Core::System::unveil(nullptr, nullptr));
char const* start_page = nullptr;
unsigned section = 0;
Core::ArgsParser args_parser;
// FIXME: These custom Args are a hack. What we want to do is have an optional int arg, then an optional string.
// However, when only a string is provided, it gets forwarded to the int argument since that is first, and
// parsing fails. This hack instead forwards it to the start_page in that case.
args_parser.add_positional_argument(Core::ArgsParser::Arg {
.help_string = "Section of the man page",
.name = "section",
.min_values = 0,
.max_values = 1,
.accept_value = [&](char const* input) {
// If it's a number, use it as the section
if (auto number = StringView(input).to_int(); number.has_value()) {
section = number.value();
return true;
}
// Otherwise, use it as the start_page
start_page = input;
return true;
} });
args_parser.add_positional_argument(Core::ArgsParser::Arg {
.help_string = "Help page to open. Either an absolute path to the markdown file, or a search query",
.name = "page",
.min_values = 0,
.max_values = 1,
.accept_value = [&](char const* input) {
// If start_page was already set by our section arg, then it can't be set again
if (start_page)
return false;
start_page = input;
return true;
} });
args_parser.parse(arguments);
auto app_icon = GUI::Icon::default_icon("app-help");
auto window = TRY(GUI::Window::try_create());
window->set_icon(app_icon.bitmap_for_size(16));
window->set_title("Help");
window->resize(570, 500);
auto main_widget = TRY(window->try_set_main_widget<MainWidget>());
TRY(main_widget->initialize_fallibles(window));
main_widget->set_start_page(start_page, section);
window->show();
return app->exec();
}