Add clipboard

Signed-off-by: Slendi <slendi@socopon.com>

src/App.hpp

@@ -6,6 +6,7 @@
 
 #include <EGL/egl.h>
 #include <libportal/portal.h>
+#include <wayland-client-protocol.h>
 extern "C" {
 #include "blur-client-protocol.h"
 #define namespace namespace_
@@ -50,13 +51,19 @@ private:
 	auto ensure_egl_surface() -> void;
 	auto update_blur_region() -> void;
 	auto process_pending_text_input() -> void;
-	auto update_text_input_state(std::pmr::string const &text, usize id,
-	    Rectangle field_rect) -> void;
+	auto update_text_input_state(
+	    std::pmr::string const &text, usize id, Rectangle field_rect) -> void;
 	auto theme() const -> ColorScheme const &
 	{
 		return m_themes[m_active_theme];
 	}
 
+	auto clipboard() const -> std::pmr::string const &
+	{
+		return m_clipboard_cache;
+	}
+	auto clipboard(std::string_view const &str) -> void;
+
 	static void on_settings_changed(XdpSettings * /*self*/, char const *ns,
 	    char const *key, GVariant * /*value*/, gpointer data);
 
@@ -75,7 +82,13 @@ private:
 		org_kde_kwin_blur *kde_blur {};
 		zwp_text_input_manager_v3 *text_input_mgr {};
 		zwp_text_input_v3 *text_input {};
+		wl_data_device_manager *ddm {};
+		wl_data_device *ddev {};
+		wl_data_offer *curr_offer {};
+		wl_data_source *curr_source {};
 	} m_wayland;
+	std::pmr::string m_clipboard_cache;
+	u32 m_last_serial { 0 };
 
 	struct {
 		EGLDisplay edpy { EGL_NO_DISPLAY };