[gnome-music/wip/mschraal/assorted-cleanups: 17/18] coregrilo: Simplify playlist calls

[Marinus Schraal <mschraal src gnome org>]

commit 43c6c5f5bc390739f83b2c1f166cc34ed447fc54
Author: Marinus Schraal <mschraal gnome org>
Date:   Thu Mar 26 15:15:08 2020 +0100

    coregrilo: Simplify playlist calls
    
    No need to iterate over the wrappers, only Tracker supports playlists.

 gnomemusic/coregrilo.py | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)
---
diff --git a/gnomemusic/coregrilo.py b/gnomemusic/coregrilo.py
index 2e15ef15..3860fb6c 100644
--- a/gnomemusic/coregrilo.py
+++ b/gnomemusic/coregrilo.py
@@ -209,10 +209,9 @@ class CoreGrilo(GObject.GObject):
 
         :param Playlist playlist: playlist
         """
-        for wrapper in self._wrappers.values():
-            if wrapper.source.props.source_id == "grl-tracker-source":
-                wrapper.stage_playlist_deletion(playlist)
-                break
+        if "grl-tracker-source" in self._wrappers:
+            self._wrappers["grl-tracker-source"].stage_playlist_deletion(
+                playlist)
 
     def finish_playlist_deletion(self, playlist, deleted):
         """Finishes playlist deletion.
@@ -220,10 +219,9 @@ class CoreGrilo(GObject.GObject):
         :param Playlist playlist: playlist
         :param bool deleted: indicates if the playlist has been deleted
         """
-        for wrapper in self._wrappers.values():
-            if wrapper.source.props.source_id == "grl-tracker-source":
-                wrapper.finish_playlist_deletion(playlist, deleted)
-                break
+        if "grl-tracker-source" in self._wrappers:
+                self._wrappers["grl-tracker-source"].finish_playlist_deletion(
+                    playlist, deleted)
 
     def create_playlist(self, playlist_title, callback):
         """Creates a new user playlist.
@@ -231,7 +229,6 @@ class CoreGrilo(GObject.GObject):
         :param str playlist_title: playlist title
         :param callback: function to perform once, the playlist is created
         """
-        for wrapper in self._wrappers.values():
-            if wrapper.source.props.source_id == "grl-tracker-source":
-                wrapper.create_playlist(playlist_title, callback)
-                break
+        if "grl-tracker-source" in self._wrappers:
+                self._wrappers["grl-tracker-source"].create_playlist(
+                    playlist_title, callback)