command_line_option.h

Go to the documentation of this file.

/*
 * Copyright © 2016 Canonical Ltd.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 or 3 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef MIRAL_COMMAND_LINE_OPTION_H
#define MIRAL_COMMAND_LINE_OPTION_H
 
#include <mir/optional_value.h>
#include <miral/lambda_as_function.h>
 
#include <functional>
#include <memory>
#include <string>
 
namespace mir { class Server; }
 
namespace miral
{
class CommandLineOption
{
public:
    CommandLineOption(
        std::function<void(int value)> callback,
        std::string const& option,
        std::string const& description,
        int default_value);
 
    CommandLineOption(
        std::function<void(double value)> callback,
        std::string const& option,
        std::string const& description,
        double default_value);
 
    CommandLineOption(
        std::function<void(std::string const& value)> callback,
        std::string const& option,
        std::string const& description,
        std::string const& default_value);
 
    CommandLineOption(
        std::function<void(std::string const& value)> callback,
        std::string const& option,
        std::string const& description,
        char const* default_value);
 
    CommandLineOption(
        std::function<void(bool value)> callback,
        std::string const& option,
        std::string const& description,
        bool default_value);
 
    CommandLineOption(
        std::function<void(mir::optional_value<int> const& value)> callback,
        std::string const& option,
        std::string const& description);
 
    CommandLineOption(
        std::function<void(mir::optional_value<std::string> const& value)> callback,
        std::string const& option,
        std::string const& description);
 
    CommandLineOption(
        std::function<void(mir::optional_value<bool> const& value)> callback,
        std::string const& option,
        std::string const& description);
 
    CommandLineOption(
        std::function<void(bool is_set)> callback,
        std::string const& option,
        std::string const& description);
 
    template<typename Lambda>
    CommandLineOption(
            Lambda&& callback,
            std::string const& option,
            std::string const& description) :
            CommandLineOption(lambda_as_function(std::forward<Lambda>(callback)), option, description) {}
 
    void operator()(mir::Server& server) const;
 
    // Call the callback *before* Mir initialization starts
    friend auto pre_init(CommandLineOption const& clo) -> CommandLineOption;
 
    ~CommandLineOption();
    CommandLineOption(CommandLineOption const&);
    auto operator=(CommandLineOption const&) -> CommandLineOption&;
 
private:
    struct Self;
    std::shared_ptr<Self> self;
};
 
auto pre_init(CommandLineOption const& clo) -> CommandLineOption;
}
 
#endif //MIRAL_COMMAND_LINE_OPTION_H