open.hpp

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/*
    Copyright (C) 2013 - 2024
    by Iris Morelle <shadowm2006@gmail.com>
    Part of the Battle for Wesnoth Project https://www.wesnoth.org/
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY.
 
    See the COPYING file for more details.
*/
 
/**
 * @file
 * Desktop environment interaction functions.
 */
 
#pragma once
 
#include <string>
 
namespace desktop {
 
/**
 * Opens the specified object with the default application configured for its type.
 *
 * The default application for handling the object represented by
 * @a path_or_url is defined by the operating system and desktop environment
 * under which Wesnoth is running, and it is not under our control. Therefore,
 * <b>EXTREME CAUTION</b> is advised when using this function with URLs or
 * paths that are entirely or partially constructed from user-provided input
 * (e.g., WML from user-made add-ons, chat log messages).
 *
 * If the content pointed to by @a path_or_url cannot be trusted, you should
 * either refrain from using this function, or warn the user before calling
 * this function.
 *
 * @note Currently, only X11, Apple OS X, and Microsoft Windows are supported.
 *       Using this function on unsupported platforms will result in an error
 *       message logged in stderr.
 *
 * @return @a true on success, @a false otherwise. Failure to perform the
 *         platform call means either that we do not currently support the
 *         running platform, the child process exited with a non-zero status,
 *         or something else went wrong. Thus, a value of @a true does not
 *         truly guarantee success -- take it with a grain of salt.
 */
bool open_object(const std::string& path_or_url);
 
/** Returns whether open_object() is supported/implemented for the current platform. */
constexpr bool open_object_is_supported()
{
#if defined(_X11) || defined(__APPLE__) || defined(_WIN32)
    return true;
#else
    return false;
#endif
}
 
}