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-rw-r--r--src/mpris2-watcher.vala56
1 files changed, 44 insertions, 12 deletions
diff --git a/src/mpris2-watcher.vala b/src/mpris2-watcher.vala
index 1cf8baa..d154fcb 100644
--- a/src/mpris2-watcher.vala
+++ b/src/mpris2-watcher.vala
@@ -19,7 +19,8 @@ with this program. If not, see <http://www.gnu.org/licenses/>.
[DBus (name = "org.freedesktop.DBus")]
public interface FreeDesktopObject: Object {
- public abstract signal void name_owner_changed (string name,
+ public abstract async string[] list_names() throws IOError;
+ public abstract signal void name_owner_changed (string name,
string old_owner,
string new_owner);
}
@@ -48,6 +49,7 @@ public class Mpris2Watcher : GLib.Object
FREEDESKTOP_OBJECT,
DBusProxyFlags.DO_NOT_LOAD_PROPERTIES );
this.fdesktop_obj.name_owner_changed.connect (this.name_changes_detected);
+ this.check_for_active_clients.begin();
}
catch ( IOError e ){
warning( "Mpris2watcher could not set up a watch for mpris clients appearing on the bus: %s",
@@ -58,8 +60,24 @@ public class Mpris2Watcher : GLib.Object
private void name_changes_detected ( FreeDesktopObject dbus_obj,
string name,
string previous_owner,
- string current_owner ) {
- MprisRoot mpris2_root;
+ string current_owner )
+ {
+ MprisRoot? mpris2_root = this.create_mpris_root(name);
+
+ if (mpris2_root == null) return;
+
+ if (previous_owner != "" && current_owner == "") {
+ debug ("Client '%s' gone down", name);
+ client_disappeared (name);
+ }
+ else if (previous_owner == "" && current_owner != "") {
+ debug ("Client '%s' has appeared", name);
+ client_appeared (mpris2_root.DesktopEntry);
+ }
+ }
+
+ private MprisRoot? create_mpris_root(string name){
+ MprisRoot mpris2_root = null;
if ( name.has_prefix (MPRIS_PREFIX) ){
try {
mpris2_root = Bus.get_proxy_sync ( BusType.SESSION,
@@ -69,16 +87,30 @@ public class Mpris2Watcher : GLib.Object
catch (IOError e){
warning( "Mpris2watcher could not create a root interface: %s",
e.message );
- return;
- }
- if (previous_owner != "" && current_owner == "") {
- debug ("Client '%s' gone down", name);
- client_disappeared (name);
- }
- else if (previous_owner == "" && current_owner != "") {
- debug ("Client '%s' has appeared", name);
- client_appeared (mpris2_root.DesktopEntry);
}
}
+ return mpris2_root;
}
+
+ // At startup check to see if there are clients up that we are interested in
+ // More relevant for development and daemon's like mpd.
+ private async void check_for_active_clients()
+ {
+ string[] interfaces;
+ try{
+ interfaces = yield this.fdesktop_obj.list_names();
+ }
+ catch ( IOError e) {
+ warning( "Mpris2watcher could fetch active interfaces at startup: %s",
+ e.message );
+ return;
+ }
+ foreach (var address in interfaces) {
+ if (address.has_prefix (MPRIS_PREFIX)){
+ MprisRoot? mpris2_root = this.create_mpris_root(address);
+ if (mpris2_root == null) return;
+ client_appeared (mpris2_root.DesktopEntry);
+ }
+ }
+ }
} \ No newline at end of file