ui/gtk3: Add desktop file for Plasma systemsettings5

systemsettings5 "Input Devices" -> "Virtual Keyboard" shows
"IBus Wayland" icon in the Plasma Wayland desktop session to
launch `ibus-ui-gtk3 --enable-wayland-im` and the panel can
be launched with "Apply" button after `ibus-daemon --panel disable &`
runs.

BUG=#2408

po/POTFILES.in

@@ -64,6 +64,7 @@ ui/gtk3/emojierapp.vala
 ui/gtk3/handle.vala
 ui/gtk3/ibus-extension-gtk3.desktop.in
 ui/gtk3/ibus-ui-emojier.desktop.in
+ui/gtk3/ibus-ui-wayland.desktop.in
 ui/gtk3/iconwidget.vala
 ui/gtk3/keybindingmanager.vala
 ui/gtk3/panel.vala

ui/gtk3/Makefile.am

@@ -36,6 +36,13 @@ componentdir = $(pkgdatadir)/component
 		-e 's|@VERSION[@]|$(VERSION)|g' \
 		-e 's|@libexecdir[@]|$(libexecdir)|g' $< > $@.tmp && \
 		mv $@.tmp $@
+	$(NULL)
+%.desktop: %.desktop.in
+	$(AM_V_GEN) sed \
+		-e 's|@libexecdir[@]|$(libexecdir)|g' \
+		-e 's|^#Name=|Name=|' $< > $@.tmp && \
+		mv $@.tmp $@
+	$(NULL)
 
 # force include config.h before gi18n.h.
 AM_CPPFLAGS = \
@@ -101,22 +108,6 @@ if ENABLE_APPINDICATOR
 AM_VALAFLAGS += --define=INDICATOR
 endif
 
-if ENABLE_GDK3_WAYLAND
-AM_CPPFLAGS += \
-    -I$(top_srcdir)/client/wayland \
-    -I$(top_builddir)/client/wayland \
-    $(NULL)
-AM_VALAFLAGS += \
-    --vapidir=$(top_builddir)/client/wayland \
-    --vapidir=$(top_srcdir)/client/wayland \
-    --pkg=ibus-wayland-im-1.0 \
-    --pkg=gdk-wayland --define=USE_GDK_WAYLAND \
-    $(NULL)
-AM_LDADD += \
-    $(libibuswaylandim) \
-    $(NULL)
-endif
-
 libexec_PROGRAMS = ibus-ui-gtk3
 
 ibus_ui_gtk3_SOURCES = \
@@ -150,34 +141,66 @@ gen-%.xml.c: %.xml
 	sed -e "s:\":\\\\\":g" -e s:^:\": -e s:\$$:\\\\n\": $< >> $@
 	echo ";" >> $@
 
+emoji_headers =         \
+    ibusemojidialog.h   \
+    $(NULL)
+
+desktop_in_files = \
+    ibus-ui-emojier.desktop.in \
+    ibus-ui-wayland.desktop.in \
+    ibus-extension-gtk3.desktop.in \
+    $(NULL)
+desktop_notrans_files = $(desktop_in_files:.desktop.in=.desktop)
+desktopdir = $(datadir)/applications
+desktop_DATA =
+
 CLEANFILES =            \
+    $(desktop_notrans_files) \
+    $(desktop_DATA)     \
     gtkpanel.xml        \
     $(NULL)
 
 MAINTAINERCLEANFILES =
 
-emoji_headers =         \
-    ibusemojidialog.h   \
-    $(NULL)
-
 # References:
 # libappindicator/src/notification-item.xml
 # libappindicator/src/notification-watcher.xml
 # kdelibs/kdeui/knotifications/src/org.kde.StatusNotifierItem.xml
 # kdelibs/kdeui/knotifications/src/org.kde.StatusNotifierWatcher.xml
 EXTRA_DIST =                            \
     $(emoji_headers)                    \
+    $(desktop_in_files)                 \
     emojierapp.vala                     \
     extension.vala                      \
     gtkextension.xml.in                 \
     gtkpanel.xml.in                     \
     notification-item.xml               \
     notification-watcher.xml            \
-    ibus-ui-emojier.desktop.in          \
-    ibus-extension-gtk3.desktop.in      \
     panelbinding.vala                   \
     $(NULL)
 
+if ENABLE_GDK3_WAYLAND
+AM_CPPFLAGS += \
+    -I$(top_srcdir)/client/wayland \
+    -I$(top_builddir)/client/wayland \
+    $(NULL)
+AM_VALAFLAGS += \
+    --vapidir=$(top_builddir)/client/wayland \
+    --vapidir=$(top_srcdir)/client/wayland \
+    --pkg=ibus-wayland-im-1.0 \
+    --pkg=gdk-wayland --define=USE_GDK_WAYLAND \
+    $(NULL)
+AM_LDADD += \
+    $(libibuswaylandim) \
+    $(NULL)
+desktop_DATA += \
+    org.freedesktop.IBus.Panel.Wayland.Gtk3.desktop \
+    $(NULL)
+org.freedesktop.IBus.Panel.Wayland.Gtk3.desktop: ibus-ui-wayland.desktop
+	$(AM_V_GEN) $(MSGFMT) --desktop --template $< -d $(top_srcdir)/po -o $@
+	$(NULL)
+endif
+
 if ENABLE_EMOJI_DICT
 AM_VALAFLAGS += --define=EMOJI_DICT
 
@@ -270,33 +293,16 @@ MAINTAINERCLEANFILES += extension.c panelbinding.c
 man_seven_DATA = ibus-emoji.7
 man_sevendir = $(mandir)/man7
 
-desktop_in_files = \
-    ibus-ui-emojier.desktop.in \
-    ibus-extension-gtk3.desktop.in \
-    $(NULL)
-desktop_notrans_files = $(desktop_in_files:.desktop.in=.desktop)
-desktop_DATA = \
+desktop_DATA += \
     org.freedesktop.IBus.Panel.Emojier.desktop \
     org.freedesktop.IBus.Panel.Extension.Gtk3.desktop \
     $(NULL)
-desktopdir = $(datadir)/applications
-%.desktop: %.desktop.in
-	$(AM_V_GEN) sed \
-		-e 's|@libexecdir[@]|$(libexecdir)|g' $< > $@.tmp && \
-                mv $@.tmp $@
-	$(NULL)
 org.freedesktop.IBus.Panel.Emojier.desktop: ibus-ui-emojier.desktop
 	$(AM_V_GEN) $(MSGFMT) --desktop --template $< -d $(top_srcdir)/po -o $@
 	$(NULL)
 org.freedesktop.IBus.Panel.Extension.Gtk3.desktop: ibus-extension-gtk3.desktop
 	$(AM_V_GEN) $(MSGFMT) --desktop --template $< -d $(top_srcdir)/po -o $@
 	$(NULL)
-
-CLEANFILES += \
-    $(desktop_DATA) \
-    $(desktop_notrans_files) \
-    $(NULL)
-
 endif
 # end of ENABLE_EMOJI_DICT
 

ui/gtk3/ibus-ui-wayland.desktop.in

@@ -0,0 +1,8 @@
+[Desktop Entry]
+# IBus Wayland is a branding name but not translatable.
+#Name=IBus Wayland
+Exec=@libexecdir@/ibus-ui-gtk3 --enable-wayland-im
+Type=Application
+X-KDE-Wayland-VirtualKeyboard=true
+Icon=ibus
+NoDisplay=true