gui-apps/swaync: fix deps

Use vala eclass.

Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>

gui-apps/swaync/swaync-0.4-r1.ebuild

@@ -3,12 +3,13 @@
 
 EAPI=8
 
-inherit meson
+inherit meson vala
 
+MY_PN="SwayNotificationCenter"
 DESCRIPTION="A simple notification daemon with a GTK gui for notifications and control center"
 HOMEPAGE="https://github.com/ErikReider/SwayNotificationCenter"
-SRC_URI="https://github.com/ErikReider/SwayNotificationCenter/archive/v${PV}.tar.gz -> ${P}.tar.gz"
-S="${WORKDIR}/SwayNotificationCenter-${PV}"
+SRC_URI="https://github.com/ErikReider/${MY_PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${MY_PN}-${PV}"
 
 LICENSE="GPL-3"
 SLOT="0"
@@ -16,21 +17,24 @@ KEYWORDS="~amd64 ~x86"
 IUSE="scripting"
 
 DEPEND="
-	dev-libs/glib
+	dev-libs/glib:2
 	dev-libs/gobject-introspection
 	dev-libs/json-glib
-	dev-libs/libgee
+	dev-libs/libgee:=
 	dev-libs/wayland
 	>=gui-libs/gtk-layer-shell-0.6.0
-	gui-libs/libhandy
+	gui-libs/libhandy:1
 	sys-apps/dbus
+	x11-libs/gdk-pixbuf:2
 	x11-libs/gtk+:3
 "
 RDEPEND="${DEPEND}"
-BDEPEND="
-	dev-lang/vala
-	dev-util/meson
-"
+BDEPEND="$(vala_depend)"
+
+src_prepare() {
+	default
+	vala_setup
+}
 
 src_configure() {
 	local emesonargs=(