Keep list of active transfers and ensure device widgets show any ongoing transfers

src/Indicator.vala

@@ -21,6 +21,7 @@ public class BluetoothIndicator.Indicator : Wingpanel.Indicator {
     private Widgets.PopoverWidget popover_widget;
     private Widgets.DisplayWidget dynamic_icon;
     private Services.ObjectManager object_manager;
+    private Services.ObexManager obex_manager;
 
     public Indicator (bool is_in_session) {
         Object (
@@ -35,7 +36,7 @@ public class BluetoothIndicator.Indicator : Wingpanel.Indicator {
 
         object_manager = new BluetoothIndicator.Services.ObjectManager ();
         object_manager.bind_property ("has-object", this, "visible", GLib.BindingFlags.SYNC_CREATE);
-
+        obex_manager = new BluetoothIndicator.Services.ObexManager ();
         if (object_manager.has_object) {
             object_manager.set_last_state.begin ();
         }
@@ -57,7 +58,7 @@ public class BluetoothIndicator.Indicator : Wingpanel.Indicator {
 
     public override Gtk.Widget? get_widget () {
         if (popover_widget == null) {
-            popover_widget = new Widgets.PopoverWidget (object_manager, is_in_session);
+            popover_widget = new Widgets.PopoverWidget (object_manager, obex_manager, is_in_session);
         }
 
         return popover_widget;

src/Services/ObexManager.vala

@@ -20,8 +20,10 @@ public class BluetoothIndicator.Services.ObexManager : Object {
     public signal void transfer_removed (BluetoothIndicator.Services.Obex.Transfer transfer);
     public signal void transfer_active (string address);
     private GLib.DBusObjectManagerClient object_manager;
+    public GLib.HashTable<BluetoothIndicator.Services.Obex.Transfer, string> transferact;
 
     construct {
+        transferact = new GLib.HashTable <BluetoothIndicator.Services.Obex.Transfer, string> (GLib.str_hash, GLib.str_equal);
         create_manager.begin ();
     }
 
@@ -75,15 +77,21 @@ public class BluetoothIndicator.Services.ObexManager : Object {
             } catch (Error e) {
                 critical (e.message);
             }
-            transfer_added (session.destination, transfer);
+            transferact[transfer] = session.destination;
             ((DBusProxy) transfer).g_properties_changed.connect ((changed, invalid) => {
                 transfer_active (session.destination);
             });
+            transfer_added (session.destination, transfer);
         }
     }
+
     private void on_interface_removed (GLib.DBusObject object, GLib.DBusInterface iface) {
          if (iface is BluetoothIndicator.Services.Obex.Transfer) {
-            transfer_removed ((BluetoothIndicator.Services.Obex.Transfer) iface);
+            unowned BluetoothIndicator.Services.Obex.Transfer transfer = (BluetoothIndicator.Services.Obex.Transfer) iface;
+            if (transferact.contains (transfer)) {
+                transferact.remove (transfer);
+            }
+            transfer_removed (transfer);
         }
     }
 }

src/Widgets/Device.vala

@@ -21,6 +21,7 @@ public class BluetoothIndicator.Widgets.Device : Gtk.ListBoxRow {
     private const string OBEX_PATH = "/org/bluez/obex/elementary";
     public signal void show_device (BluetoothIndicator.Services.Device device);
     public BluetoothIndicator.Services.Device device { get; construct; }
+    public BluetoothIndicator.Services.ObexManager obex_manager { get; construct; }
     public BluetoothIndicator.Services.Obex.Transfer transfer;
     private Gtk.Label status_label;
     private Gtk.Label name_label;
@@ -32,12 +33,13 @@ public class BluetoothIndicator.Widgets.Device : Gtk.ListBoxRow {
     private Gtk.Revealer progress_revealer;
     private Gtk.ProgressBar progressbar;
 
-    public Device (BluetoothIndicator.Services.Device device) {
-        Object (device: device);
+    public Device (BluetoothIndicator.Services.Device device, BluetoothIndicator.Services.ObexManager obex_manager) {
+        Object (device: device,
+                obex_manager: obex_manager
+        );
     }
 
     construct {
-        var obex_manager = new BluetoothIndicator.Services.ObexManager ();
         obex_manager.transfer_added.connect (transfer_added);
         obex_manager.transfer_removed.connect (transfer_removed);
         obex_manager.transfer_active.connect (transfer_active);
@@ -126,6 +128,9 @@ public class BluetoothIndicator.Widgets.Device : Gtk.ListBoxRow {
         update_status ();
         get_style_context ().add_class (Gtk.STYLE_CLASS_MENUITEM);
         selectable = false;
+        obex_manager.transferact.foreach ((transfer, address)=> {
+            transfer_added (address, transfer);
+        });
     }
 
     private void transfer_removed (BluetoothIndicator.Services.Obex.Transfer transfer) {

src/Widgets/PopoverWidget.vala

@@ -20,15 +20,17 @@ public class BluetoothIndicator.Widgets.PopoverWidget : Gtk.Box {
     public signal void discovery_requested ();
 
     public BluetoothIndicator.Services.ObjectManager object_manager { get; construct; }
+    public BluetoothIndicator.Services.ObexManager obex_manager { get; construct; }
     public bool is_in_session { get; construct; }
 
     private Granite.SwitchModelButton main_switch;
     private Gtk.ListBox devices_list;
     private Gtk.Revealer revealer;
 
-    public PopoverWidget (BluetoothIndicator.Services.ObjectManager object_manager, bool is_in_session) {
+    public PopoverWidget (BluetoothIndicator.Services.ObjectManager object_manager, BluetoothIndicator.Services.ObexManager obex_manager, bool is_in_session) {
         Object (
             object_manager: object_manager,
+            obex_manager: obex_manager,
             is_in_session: is_in_session
         );
     }
@@ -161,7 +163,7 @@ public class BluetoothIndicator.Widgets.PopoverWidget : Gtk.Box {
     }
 
     private void add_device (BluetoothIndicator.Services.Device device) {
-        var device_widget = new Widgets.Device (device);
+        var device_widget = new Widgets.Device (device, obex_manager);
         devices_list.add (device_widget);
         devices_list.show_all ();