community/sway: bring -portalconf up to date with xdg

`DesktopNames` is now part of the spec, so remove the `X-` prefix,
as gdm only queries `DesktopNames`. This actually sets XDG_CURRENT_DESKTOP
with gdm now.

Also add a warning for users of sway-portalsconf, that not all portals
are provided by us. For things like the keyring or color-scheme more
portal backends have to be specified.

Also move the `sway-portals.conf` to `/usr/share/...` instead of `/etc`.

community/sway/APKBUILD

@@ -1,10 +1,9 @@
 # Contributor: Henrik Riomar <henrik.riomar@gmail.com>
 # Contributor: Antoine Fontaine <antoine.fontaine@epfl.ch>
-# Contributor:
 # Maintainer: Michał Polański <michal@polanski.me>
 pkgname=sway
 pkgver=1.9
-pkgrel=1
+pkgrel=2
 pkgdesc="i3-compatible window manager for Wayland"
 url="https://swaywm.org/"
 license="MIT"
@@ -45,6 +44,7 @@ source="$pkgname-$pkgver.tar.gz::https://github.com/swaywm/sway/archive/$pkgver.
 	sway.desktop
 	remove-aports-git-version.patch
 	"
+install="$pkgname-portalsconf.pre-install $pkgname-portalsconf.pre-upgrade"
 options="setcap !check" # no test suite
 
 # Remove when Alpine >= 3.21
@@ -76,7 +76,7 @@ portalsconf() {
 	install_if="$pkgname=$pkgver-r$pkgrel xdg-desktop-portal>=1.17.0"
 
 	install -Dm644 "$srcdir"/sway-portals.conf \
-		-t "$subpkgdir"/etc/xdg-desktop-portal/
+		-t "$subpkgdir"/usr/share/xdg-desktop-portal/
 }
 
 wallpapers() {
@@ -104,6 +104,6 @@ swaynag() {
 sha512sums="
 7ec0a29078eb7e0fb1b6af97613c263adec78ddb03a63cb75fb5e44c7241ed144687fd094ee2eb70f4397832ca9bdffc88bc32dee7683bf0e515417c7a05d4c4  sway-1.9.tar.gz
 c10862928d839a5a8a3a8c235ab9df58b0ffb111b7a0b11e9110b39169ac37de6e7eb1d945ec3611fb213ba159f0e47afd97085faa6ee8238e4d06fed0d74d70  sway-portals.conf
-c9bc08fbd9d059c037ad1e3b7ab5e91bcde27dce248cc558c1f126b01c85b1d0d4ed4bb10e3f27bc818a06e60a81f19478b95529d4eeb32036e2c6ea9f29db36  sway.desktop
+327f11cc053b39816da76a62199ef40f564acc1fe474b013fc1fd594c448ae3da805bfc475b7c68cce3a17b4a261c5a4bc7e9e91a471f90f5cf4e95bbd937e6c  sway.desktop
 3081f34ff88be38889ace94489ff4dc97a3d2d8402a6f2e83e968b991db478b7d3329d1685697898d8e43761e83be0d7c348a5fee45fe41dbb77521cda7b5a72  remove-aports-git-version.patch
 "

community/sway/sway-portalsconf.pre-install

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+cat << __EOF__
+*
+* The sway-portals.conf from the package \`sway-portalsconf\` doesn't specify multiple
+* important portal backends, as this is left for the user to configure. Mainly
+* org.freedesktop.Settings (used for e.g the color scheme) and org.freedesktop.Secret.
+*
+* See also:
+* - \`man 5 portals.conf\`
+* - https://flatpak.github.io/xdg-desktop-portal/docs/backends.html
+*
+__EOF__
+
+exit 0

community/sway/sway-portalsconf.pre-upgrade

@@ -0,0 +1 @@
+sway-portalsconf.pre-install

community/sway/sway.desktop

@@ -7,5 +7,5 @@ Exec=dbus-run-session /usr/bin/sway
 TryExec=/usr/bin/sway
 Icon=
 Type=Application
-X-DesktopNames=Sway
+DesktopNames=Sway
 Keywords=launch;Sway;desktop;session;