feat(window): add exclusive fullscreen support with WM detection

include/Cubed/argument.hpp

@@ -9,5 +9,6 @@ struct Argument {
     std::optional<bool> no_debug;
     std::optional<std::string> language;
     std::optional<std::string> video_driver;
+    std::optional<bool> enable_exclusive;
 };
 } // namespace Cubed

include/Cubed/tools/system_info.hpp

@@ -184,14 +184,14 @@ inline std::string get_compiler_info() {
 #else
     result = "Unknown Compiler";
 #endif
-    constexpr long cpp_version =
+    constexpr long CPP_VERSION =
 #ifdef _MSC_VER
         _MSVC_LANG;
 #else
         __cplusplus;
 #endif
     result += " (C++";
-    result += std::to_string(cpp_version);
+    result += std::to_string(CPP_VERSION);
     result += ")";
 
     return result;

include/Cubed/tools/system_window_manager.hpp

@@ -0,0 +1,45 @@
+#pragma once
+
+#include "Cubed/tools/log.hpp"
+
+#include <cstdlib>
+#include <string>
+namespace Cubed {
+enum class WindowManager { WINDOWS, UNKNOWN, NIRI, SWAY, HYPRLAND, KDE, GNOME };
+
+namespace Tools {
+inline WindowManager detect_wm() {
+#ifdef _WIN32
+    return WindowManager::WINDOWS;
+#endif
+#ifdef __linux__
+
+    const char* desktop = getenv("XDG_CURRENT_DESKTOP");
+
+    if (!desktop)
+        return WindowManager::UNKNOWN;
+    Logger::info("XDG_CURRENT_DESKTOP {}", desktop);
+    std::string wm(desktop);
+
+    if (wm.find("niri") != std::string::npos)
+        return WindowManager::NIRI;
+
+    if (wm.find("sway") != std::string::npos)
+        return WindowManager::SWAY;
+
+    if (wm.find("Hyprland") != std::string::npos)
+        return WindowManager::HYPRLAND;
+
+    if (wm.find("KDE") != std::string::npos)
+        return WindowManager::KDE;
+
+    if (wm.find("GNOME") != std::string::npos)
+        return WindowManager::GNOME;
+
+#endif
+
+    return WindowManager::UNKNOWN;
+}
+} // namespace Tools
+
+} // namespace Cubed

include/Cubed/window.hpp

@@ -49,6 +49,7 @@ private:
     bool m_mouse_enable = true;
     bool m_imgui_init = false;
     bool m_game_running = false;
+    bool m_enable_exclusive = false;
     SDL_Window* m_window;
     SDL_GLContext m_context;
     int m_window_width = 0;
@@ -61,6 +62,9 @@ private:
     bool handle_key_event(const KeyEvent& e);
     bool handle_window_resize_event(const WindowResizeEvent& e);
     bool handle_mouse_button_event(const MouseButtonEvent& e);
+
+    void set_exclusive_fullscreen(bool full);
+    void set_borderless_fullscreen(bool full);
 };
 
 } // namespace Cubed

src/app.cpp

@@ -132,9 +132,9 @@ void App::handle_argument(int argc, char** argv) {
              [&](ArgParser& p) {
                  auto arg = p.require_next("--video-driver");
                  m_argument.video_driver = arg;
-             }
+             }},
-
+            {"--enable-exclusive",
-            }
+             [&](ArgParser&) { m_argument.enable_exclusive = true; }}
 
         };
     ArgParser parser(argc, argv);

src/window.cpp

@@ -6,6 +6,7 @@
 #include "Cubed/tools/env_tools.hpp"
 #include "Cubed/tools/font.hpp"
 #include "Cubed/tools/log.hpp"
+#include "Cubed/tools/system_window_manager.hpp"
 
 #include <imgui.h>
 #include <imgui_impl_opengl3.h>
@@ -110,6 +111,67 @@ bool Window::handle_mouse_button_event(const MouseButtonEvent& e) {
     return false;
 }
 
+void Window::set_exclusive_fullscreen(bool full) {
+
+    if (full) {
+        SDL_GetWindowPosition(m_window, &windowed_xpos, &windowed_ypos);
+        SDL_GetWindowSize(m_window, &windowed_width, &windowed_height);
+        SDL_SetWindowFullscreen(m_window, true);
+        m_fullscreen = true;
+        m_config.set("window.fullscreen", true);
+    } else {
+        SDL_SetWindowFullscreen(m_window, false);
+        SDL_SetWindowPosition(m_window, windowed_xpos, windowed_ypos);
+        SDL_SetWindowSize(m_window, windowed_width, windowed_height);
+        m_fullscreen = false;
+        m_config.set("window.fullscreen", false);
+    }
+}
+void Window::set_borderless_fullscreen(bool full) {
+    if (full) {
+        // If the window is maximized, restore it first.
+        if (SDL_GetWindowFlags(m_window) & SDL_WINDOW_MAXIMIZED) {
+            SDL_RestoreWindow(m_window);
+        }
+
+        SDL_GetWindowPosition(m_window, &windowed_xpos, &windowed_ypos);
+
+        SDL_GetWindowSize(m_window, &windowed_width, &windowed_height);
+
+        m_windowed_display = SDL_GetDisplayForWindow(m_window);
+
+        SDL_Rect display_bounds{};
+        if (!SDL_GetDisplayBounds(m_windowed_display, &display_bounds)) {
+
+            Logger::error("SDL_GetDisplayBounds failed: {}", SDL_GetError());
+            return;
+        }
+
+        SDL_SetWindowBordered(m_window, false);
+
+        SDL_SetWindowPosition(m_window, display_bounds.x, display_bounds.y);
+
+        SDL_SetWindowSize(m_window, display_bounds.w, display_bounds.h);
+
+        SDL_RaiseWindow(m_window);
+
+        m_fullscreen = true;
+        m_config.set("window.fullscreen", true);
+    } else {
+
+        SDL_SetWindowBordered(m_window, true);
+
+        SDL_SetWindowSize(m_window, windowed_width, windowed_height);
+
+        SDL_SetWindowPosition(m_window, windowed_xpos, windowed_ypos);
+
+        SDL_RaiseWindow(m_window);
+
+        m_fullscreen = false;
+        m_config.set("window.fullscreen", false);
+    }
+}
+
 void Window::init(const Argument& argument) {
     auto video_driver = m_config.get("video_driver", std::string("auto"));
     if (argument.video_driver) {
@@ -125,6 +187,31 @@ void Window::init(const Argument& argument) {
         Logger::warn("Unknow Vider Driver {}", video_driver);
     }
 
+    bool default_exclusive = false;
+    auto wm = Tools::detect_wm();
+    switch (wm) {
+    case WindowManager::NIRI:
+    case WindowManager::SWAY:
+    case WindowManager::HYPRLAND:
+        default_exclusive = true;
+        break;
+    case WindowManager::WINDOWS:
+    case WindowManager::GNOME:
+    case WindowManager::KDE:
+    case WindowManager::UNKNOWN:
+        default_exclusive = false;
+        break;
+    }
+
+    m_enable_exclusive =
+        m_config.get("enable_exclusive_fullscreen", default_exclusive);
+
+    if (argument.enable_exclusive) {
+        m_enable_exclusive = *argument.enable_exclusive;
+    }
+
+    Logger::info("Exclusive Fullscreen {}", m_enable_exclusive);
+
     if (!SDL_Init(SDL_INIT_VIDEO)) {
         Logger::error("sdl3 init fail");
         exit(EXIT_FAILURE);
@@ -194,49 +281,11 @@ void Window::toggle_fullscreen() {
 void Window::set_fullscreen(bool full) {
     if (full == m_fullscreen)
         return;
-    if (full) {
+    if (m_enable_exclusive) {
-        // If the window is maximized, restore it first.
+        set_exclusive_fullscreen(full);
-        if (SDL_GetWindowFlags(m_window) & SDL_WINDOW_MAXIMIZED) {
-            SDL_RestoreWindow(m_window);
-        }
-
-        SDL_GetWindowPosition(m_window, &windowed_xpos, &windowed_ypos);
-
-        SDL_GetWindowSize(m_window, &windowed_width, &windowed_height);
-
-        m_windowed_display = SDL_GetDisplayForWindow(m_window);
-
-        SDL_Rect display_bounds{};
-        if (!SDL_GetDisplayBounds(m_windowed_display, &display_bounds)) {
-
-            Logger::error("SDL_GetDisplayBounds failed: {}", SDL_GetError());
-            return;
-        }
-
-        SDL_SetWindowBordered(m_window, false);
-
-        SDL_SetWindowPosition(m_window, display_bounds.x, display_bounds.y);
-
-        SDL_SetWindowSize(m_window, display_bounds.w, display_bounds.h);
-
-        SDL_RaiseWindow(m_window);
-
-        m_fullscreen = true;
-        m_config.set("window.fullscreen", true);
     } else {
-
+        set_borderless_fullscreen(full);
-        SDL_SetWindowBordered(m_window, true);
-
-        SDL_SetWindowSize(m_window, windowed_width, windowed_height);
-
-        SDL_SetWindowPosition(m_window, windowed_xpos, windowed_ypos);
-
-        SDL_RaiseWindow(m_window);
-
-        m_fullscreen = false;
-        m_config.set("window.fullscreen", false);
     }
-
     int w, h;
     SDL_GetWindowSize(m_window, &w, &h);