Update stats as proper signal, only return values from backend

common/GPodderCore.qml

@@ -35,6 +35,7 @@ Python {
     signal updatedPodcast(var podcast)
     signal episodeListChanged(int podcast_id)
     signal updatedEpisode(var episode)
+    signal updateStats()
 
     Component.onCompleted: {
         setHandler('hello', function (coreversion, uiversion) {
@@ -52,6 +53,7 @@ Python {
         setHandler('refreshing', function(v) { py.refreshing = v; });
         setHandler('episode-list-changed', py.episodeListChanged);
         setHandler('updated-episode', py.updatedEpisode);
+        setHandler('update-stats', py.updateStats);
 
         addImportPath(Qt.resolvedUrl('../..'));
 

common/util.js

@@ -69,3 +69,9 @@ function disableUntilReturn(item, py, func, args) {
         item.enabled = true;
     });
 }
+
+function format(s, d) {
+    return s.replace(/{([^}]*)}/g, function (m, k) {
+        return (k in d) ? d[k] : m;
+    });
+}

main.py

@@ -96,12 +96,12 @@ class gPotherSide:
             downloaded += do
             unplayed += un
 
-        return '\n'.join([
-            '%d podcasts' % len(podcasts),
-            '%d episodes' % total,
-            '%d new episodes' % new,
-            '%d downloads' % downloaded,
-        ])
+        return {
+            'podcasts': len(podcasts),
+            'episodes': total,
+            'newEpisodes': new,
+            'downloaded': downloaded,
+        }
 
     def _get_cover(self, podcast):
         filename = self.core.cover_downloader.get_cover(podcast)

touch/StartPage.qml

@@ -22,6 +22,7 @@ import QtQuick 2.0
 
 import 'icons/icons.js' as Icons
 import 'common/constants.js' as Constants
+import 'common/util.js' as Util
 
 SlidePage {
     id: startPage
@@ -29,7 +30,12 @@ SlidePage {
 
     function update_stats() {
         py.call('main.get_stats', [], function (result) {
-            stats.text = result;
+            stats.text = Util.format(
+                '{podcasts} podcasts\n' +
+                '{episodes} episodes\n' +
+                '{newEpisodes} new episodes\n' +
+                '{downloaded} downloaded',
+                result);
         });
 
         py.call('main.get_fresh_episodes_summary', [3], function (episodes) {
@@ -37,12 +43,11 @@ SlidePage {
         });
     }
 
-    Component.onCompleted: {
-        py.setHandler('update-stats', startPage.update_stats);
+    Item {
+        Connections {
+            target: py
+            onUpdateStats: startPage.update_stats();
         }
-
-    Component.onDestruction: {
-        py.setHandler('update-stats', undefined);
     }
 
     Flickable {