new input system

interfaces/Crafter.Graphics-Clipboard.cppm

@@ -0,0 +1,42 @@
+/*
+Crafter®.Graphics
+Copyright (C) 2026 Catcrafts®
+Catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3.0 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+export module Crafter.Graphics:Clipboard;
+import std;
+
+// Native system-clipboard writes. No popen, no helper binaries — just
+// the platform's own clipboard API. Implementation lives next to the
+// other window-backend code (Wayland data_device on Linux, Win32 in
+// the Windows build); callers don't pick a backend.
+//
+// `Get` is intentionally not exposed yet: paste-from-clipboard isn't
+// a feature the game's UI wants right now, and the read path needs
+// more lifecycle plumbing (mime negotiation, fd reads on the Wayland
+// event loop) than the simple write path. Easy to add later.
+export namespace Crafter::Clipboard {
+
+    // Place `text` on the system clipboard as UTF-8 plain text. Returns
+    // true if the platform accepted the request — false means the
+    // backend isn't initialised, no input event has been seen yet
+    // (Wayland needs a recent serial), or the OS API failed. On
+    // success the ownership of the clipboard contents is held until
+    // either another app replaces the selection or the application
+    // exits; the caller doesn't need to keep `text` alive.
+    bool SetText(std::string_view text);
+}