Music app: Fix inconsitency between initial song metadata and song

It is not enough to reevaluate metadata when count changes, since
different queries can have the same number of results. This is why
the initial song if you just launch the app and press play is not
the song you see title and art for. This commit fixes that by
acting on query changes instead.

Change-Id: Ifea5eb4090c8825a4270e98f89b16ad9e3740ec3
Reviewed-by: Nedim Hadzic <nedim.hadzic@pelagicore.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/apps/com.pelagicore.music/MusicProvider.qml b/apps/com.pelagicore.music/MusicProvider.qml
index 4089ee4..0fa5539 100644
--- a/apps/com.pelagicore.music/MusicProvider.qml
+++ b/apps/com.pelagicore.music/MusicProvider.qml
@@ -46,18 +46,21 @@ QtObject {
     property SqlQueryDataSource nowPlaying: SqlQueryDataSource {
         database: "media"
         query: 'select * from music'
+        onQueryChanged: root.reevaluate()
     }
 
     property int currentIndex: 0
     property int count: nowPlaying.count
-    onCountChanged: {
-        currentIndex = -1
-        currentIndex = 0
-    }
+
     property var currentEntry: nowPlaying.get(currentIndex);
     property url currentSource: nowPlaying.storageLocation + '/media/music/' + currentEntry.source
     property url currentCover: nowPlaying.storageLocation + '/media/music/' + currentEntry.cover
 
+    function reevaluate() {
+        currentIndex = -1
+        currentIndex = 0
+    }
+
     function queryAllAlbums() {
         musicLibrary.query = 'select * from music group by album'
     }