From d87f6d9b9d98ea8064e4063c01d483895fef87f0 Mon Sep 17 00:00:00 2001
From: Alex Maese <memaese@hotmail.com>
Date: Fri, 2 Aug 2024 13:33:57 -0500
Subject: [PATCH] Add clipboard support from SDL backend

Looks like as part of the backend refactor, copy and paste was partially
broken with the SDL backend.  This fixes that broken functionality and
lays some groundwork for copy and paste in the Wayland Backend.
---
 src/Backends/OpenVRBackend.cpp  |  6 +++++-
 src/Backends/SDLBackend.cpp     | 12 ++++++++++--
 src/Backends/WaylandBackend.cpp |  5 +++++
 src/backend.h                   |  1 +
 src/steamcompmgr.cpp            |  6 ++++--
 5 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/src/Backends/OpenVRBackend.cpp b/src/Backends/OpenVRBackend.cpp
index f03a65d2b..c39caa54b 100644
--- a/src/Backends/OpenVRBackend.cpp
+++ b/src/Backends/OpenVRBackend.cpp
@@ -893,7 +893,11 @@ namespace gamescope
                 vr::VROverlay()->ClearOverlayTexture( GetPrimaryPlane()->GetOverlayThumbnail() );
             }
         }
-		virtual std::shared_ptr<INestedHints::CursorInfo> GetHostCursor() override
+        virtual void SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection ) override
+        {
+            // Do nothing.
+        }
+        virtual std::shared_ptr<INestedHints::CursorInfo> GetHostCursor() override
         {
             return nullptr;
         }
diff --git a/src/Backends/SDLBackend.cpp b/src/Backends/SDLBackend.cpp
index 8b3646420..6d50f8d34 100644
--- a/src/Backends/SDLBackend.cpp
+++ b/src/Backends/SDLBackend.cpp
@@ -11,6 +11,7 @@
 
 #include "SDL_clipboard.h"
 #include "SDL_events.h"
+#include "gamescope_shared.h"
 #include "main.hpp"
 #include "wlserver.hpp"
 #include <SDL.h>
@@ -162,7 +163,8 @@ namespace gamescope
         virtual void SetVisible( bool bVisible ) override;
         virtual void SetTitle( std::shared_ptr<std::string> szTitle ) override;
         virtual void SetIcon( std::shared_ptr<std::vector<uint32_t>> uIconPixels ) override;
-		virtual std::shared_ptr<INestedHints::CursorInfo> GetHostCursor() override;
+        virtual void SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection ) override;
+        virtual std::shared_ptr<INestedHints::CursorInfo> GetHostCursor() override;
 	protected:
 		virtual void OnBackendBlobDestroyed( BackendBlob *pBlob ) override;
 	private:
@@ -496,7 +498,13 @@ namespace gamescope
 		m_pApplicationIcon = uIconPixels;
 		PushUserEvent( GAMESCOPE_SDL_EVENT_ICON );
 	}
-
+	void CSDLBackend::SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection )
+	{
+		if (eSelection == GAMESCOPE_SELECTION_CLIPBOARD)
+			SDL_SetClipboardText(szContents->c_str());
+		else if (eSelection == GAMESCOPE_SELECTION_PRIMARY)
+			SDL_SetPrimarySelectionText(szContents->c_str());
+	}
 	std::shared_ptr<INestedHints::CursorInfo> CSDLBackend::GetHostCursor()
 	{
 		return GetX11HostCursor();
diff --git a/src/Backends/WaylandBackend.cpp b/src/Backends/WaylandBackend.cpp
index 5e2b0191d..c53bf14df 100644
--- a/src/Backends/WaylandBackend.cpp
+++ b/src/Backends/WaylandBackend.cpp
@@ -545,6 +545,7 @@ namespace gamescope
         virtual void SetVisible( bool bVisible ) override;
         virtual void SetTitle( std::shared_ptr<std::string> szTitle ) override;
         virtual void SetIcon( std::shared_ptr<std::vector<uint32_t>> uIconPixels ) override;
+        virtual void SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection ) override;
         virtual std::shared_ptr<INestedHints::CursorInfo> GetHostCursor() override;
     protected:
         virtual void OnBackendBlobDestroyed( BackendBlob *pBlob ) override;
@@ -1976,6 +1977,10 @@ namespace gamescope
             xdg_toplevel_icon_manager_v1_set_icon( m_pToplevelIconManager, m_Planes[0].GetXdgToplevel(), nullptr );
         }
     }
+    void CWaylandBackend::SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection )
+    {
+        // Do nothing
+    }
 
     std::shared_ptr<INestedHints::CursorInfo> CWaylandBackend::GetHostCursor()
     {
diff --git a/src/backend.h b/src/backend.h
index d09e11dd5..dd295f4ac 100644
--- a/src/backend.h
+++ b/src/backend.h
@@ -130,6 +130,7 @@ namespace gamescope
         virtual void SetVisible( bool bVisible ) = 0;
         virtual void SetTitle( std::shared_ptr<std::string> szTitle ) = 0;
         virtual void SetIcon( std::shared_ptr<std::vector<uint32_t>> uIconPixels ) = 0;
+        virtual void SetSelection( std::shared_ptr<std::string> szContents, GamescopeSelection eSelection ) = 0;
         virtual std::shared_ptr<CursorInfo> GetHostCursor() = 0;
     };
 
diff --git a/src/steamcompmgr.cpp b/src/steamcompmgr.cpp
index 376770b9f..047a93053 100644
--- a/src/steamcompmgr.cpp
+++ b/src/steamcompmgr.cpp
@@ -29,6 +29,7 @@
  *   says above. Not that I can really do anything about it
  */
 
+#include "gamescope_shared.h"
 #include "xwayland_ctx.hpp"
 #include <X11/X.h>
 #include <X11/Xlib.h>
@@ -4979,13 +4980,14 @@ handle_selection_notify(xwayland_ctx_t *ctx, XSelectionEvent *ev)
 				&actual_type, &actual_format, &nitems, &bytes_after, &data);
 		if (data) {
 			const char *contents = (const char *) data;
+			auto szContents = std::make_shared<std::string>(contents);
 			defer( XFree( data ); );
 
 			if (ev->selection == ctx->atoms.clipboard)
 			{
 				if ( GetBackend()->GetNestedHints() )
 				{
-					//GetBackend()->GetNestedHints()->SetSelection()
+					GetBackend()->GetNestedHints()->SetSelection( szContents, GAMESCOPE_SELECTION_CLIPBOARD );
 				}
 				else
 				{
@@ -4996,7 +4998,7 @@ handle_selection_notify(xwayland_ctx_t *ctx, XSelectionEvent *ev)
 			{
 				if ( GetBackend()->GetNestedHints() )
 				{
-					//GetBackend()->GetNestedHints()->SetSelection()
+					GetBackend()->GetNestedHints()->SetSelection( szContents, GAMESCOPE_SELECTION_PRIMARY );
 				}
 				else
 				{