server.h

// =====================================================================================================================
//  fennec, a free and open source game engine
//  Copyright © 2025  Medusa Slockbower
//
//  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 3 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; 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 <https://www.gnu.org/licenses/>.
// =====================================================================================================================
 
 
#ifndef FENNEC_PLATFORM_LINUX_WAYLAND_SERVER_H
#define FENNEC_PLATFORM_LINUX_WAYLAND_SERVER_H
 
#include <fennec/platform/linux/wayland/fwd.h>
#include <fennec/platform/interface/display_server.h>
 
#if FENNEC_HAS_LIBDECOR
#include <fennec/platform/linux/wayland/libdecor/libdecor.h>
#endif
 
// forward defs to avoid flooding global namespace
struct wl_display;
struct wl_shm;
struct wl_compositor;
struct wl_registry;
struct wl_seat;
 
struct wp_viewporter;
struct xdg_wm_base;
 
namespace fennec
{
 
class wayland_server : public display_server_base<wayland_server, wayland_window> {
public:
    explicit wayland_server(fennec::platform* p);
    ~wayland_server() override;
 
    void connect() override;
    void disconnect() override;
    bool connected() const override;
 
    void dispatch() override;
 
    window* create_window(const window::config& conf, window* parent) override;
 
    void* get_native_handle() override { return display; }
 
 
// Fields ==============================================================================================================
private:
    wl_display*    display;
    wl_registry*   registry;
 
    wl_compositor* compositor;
    xdg_wm_base*   xdg;
    wl_seat*       seat;
    bool           fifo, has_libdecor;
 
#if FENNEC_HAS_LIBDECOR
    libdecor* libdecor;
#endif
 
 
// Listeners ===========================================================================================================
 
    static void _wl_registry_listen_global(void*, wl_registry*, uint32_t, const char*, uint32_t);
    static void _wl_registry_on_global_remove(void*, wl_registry*, uint32_t);
 
    static void _wl_seat_listen_capabilities(void*, wl_seat*, uint32_t);
    static void _wl_seat_listen_name(void*, wl_seat*, const char*);
 
    static void _xdg_listen_ping(void*, xdg_wm_base*, uint32_t);
 
#if FENNEC_HAS_LIBDECOR
    static void _libdecor_on_error(struct libdecor*, libdecor_error error, const char* message);
#endif
 
    FENNEC_RTTI_CLASS_ENABLE(display_server) {
        display_server::register_type<wayland_server>(1);
    }
 
    friend class wayland_window;
};
 
}
 
#endif // FENNEC_PLATFORM_LINUX_WAYLAND_SERVER_H