Add native ScreenCast portal with PipeWire monitor streams

packaging/config.kdl

@@ -29,6 +29,7 @@ theme {
 }
 
 window-rule app-id="dev.ferese.Settings" floating=#true
+window-rule app-id="dev.ferese.ScreenShare" floating=#true
 window-rule title="Choose a wallpaper" floating=#true
 
 desktop-widgets {

packaging/ferese-session

@@ -32,6 +32,9 @@ export PATH="$release_dir:$PATH"
 unset WAYLAND_SOCKET
 if [[ $backend == drm ]]; then
     unset DISPLAY WAYLAND_DISPLAY
+    export FERESE_SESSION_IMPORT_ENV=1
+else
+    export FERESE_SESSION_IMPORT_ENV=0
 fi
 
 if [[ $backend == drm ]] && command -v systemctl >/dev/null; then
@@ -39,7 +42,7 @@ if [[ $backend == drm ]] && command -v systemctl >/dev/null; then
 fi
 
 command=("$release_dir/ferese" --backend "$backend" --grant-effects
-    --grant-shell-control -- "$release_dir/ferese-shell")
+    --grant-shell-control -- "$release_dir/ferese-session-shell")
 if [[ -z ${DBUS_SESSION_BUS_ADDRESS:-} ]]; then
     exec dbus-run-session -- "${command[@]}"
 else

packaging/ferese-session-shell

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -euo pipefail
+# The compositor supplies its new Wayland socket before this helper starts.
+# Nested previews must never replace the host session's activation environment.
+if [[ ${FERESE_SESSION_IMPORT_ENV:-0} == 1 ]]; then
+    dbus-update-activation-environment --systemd \
+        WAYLAND_DISPLAY XDG_CURRENT_DESKTOP XDG_SESSION_DESKTOP XDG_SESSION_TYPE || \
+        dbus-update-activation-environment \
+            WAYLAND_DISPLAY XDG_CURRENT_DESKTOP XDG_SESSION_DESKTOP XDG_SESSION_TYPE || true
+fi
+release_dir=$(dirname -- "$(readlink -f -- "$0")")
+exec "$release_dir/ferese-shell"

packaging/portal/ferese-portals.conf

@@ -0,0 +1,3 @@
+[preferred]
+default=gtk;
+org.freedesktop.impl.portal.ScreenCast=ferese;

packaging/portal/ferese.portal

@@ -0,0 +1,4 @@
+[portal]
+DBusName=org.freedesktop.impl.portal.desktop.ferese
+Interfaces=org.freedesktop.impl.portal.ScreenCast;
+UseIn=Ferese;

packaging/portal/org.freedesktop.impl.portal.desktop.ferese.service

@@ -0,0 +1,3 @@
+[D-BUS Service]
+Name=org.freedesktop.impl.portal.desktop.ferese
+Exec=/usr/local/lib/ferese/current/xdg-desktop-portal-ferese