[gnome-music/wip/jfelder/3-34-grilo-tracker-reload: 3/3] coregrilo: Properly load tracker plugin

[Jean Felder <jfelder src gnome org>]

commit 9a2eea1b8b38b4cc1c73b17094ad9677ccba51ee
Author: Jean Felder <jfelder src gnome org>
Date:   Wed Feb 19 17:56:06 2020 +0100

    coregrilo: Properly load tracker plugin
    
    All grilo plugins are loaded at startup. However, TrackerWrapper may
    not be available yet. In that case, GrlTrackerWrapper is not
    created. Once TrackerWrapper becomes available, all grilo plugins are
    loaded again in order to instantiate GrlTrackerWrapper.
    It means that all plugins are activated two times, while only the
    tracker plugin should be loaded.
    
    This issue is solved by only reloading the tracker plugin when
    TrackerWrapper becomes available.

 gnomemusic/coregrilo.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gnomemusic/coregrilo.py b/gnomemusic/coregrilo.py
index 80e635ca..1dedca9b 100644
--- a/gnomemusic/coregrilo.py
+++ b/gnomemusic/coregrilo.py
@@ -91,9 +91,10 @@ class CoreGrilo(GObject.GObject):
         new_state = self._tracker_wrapper.props.tracker_available
         # FIXME:No removal support yet.
         if new_state == TrackerState.AVAILABLE:
-            # FIXME: Look for a better way to just activate the Tracker
-            # plugin.
-            self._registry.load_all_plugins(True)
+            tracker_plugin = self._registry.lookup_plugin("grl-tracker")
+            if tracker_plugin:
+                self._registry.unload_plugin("grl-tracker")
+            self._registry.activate_plugin_by_id("grl-tracker")
 
     def _on_source_added(self, registry, source):