[pitivi] elements: Better names for fields

[Thibault Saunier <tsaunier src gnome org>]

commit b849d21aee3f266a94d428485a07d51ae91cc7dc
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Tue Oct 29 16:36:18 2019 +0100

    elements: Better names for fields
    
    `_audioSource` suggests it's a GES source when it's actually a widget.

 pitivi/editorperspective.py     |  8 ++++----
 pitivi/timeline/elements.py     | 28 ++++++++++++++--------------
 tests/test_timeline_timeline.py |  4 ++--
 3 files changed, 20 insertions(+), 20 deletions(-)
---
diff --git a/pitivi/editorperspective.py b/pitivi/editorperspective.py
index 020c8186..53c634d6 100644
--- a/pitivi/editorperspective.py
+++ b/pitivi/editorperspective.py
@@ -138,10 +138,10 @@ class EditorPerspective(Perspective, Loggable):
             for ges_layer in ges_timeline.get_layers():
                 for ges_clip in ges_layer.get_clips():
                     if ges_clip.get_asset().props.id in changed_files_uris:
-                        if ges_clip.ui._audioSource:
-                            ges_clip.ui._audioSource.update_previewer()
-                        if ges_clip.ui._videoSource:
-                            ges_clip.ui._videoSource.update_previewer()
+                        if ges_clip.ui.audio_widget:
+                            ges_clip.ui.audio_widget.update_previewer()
+                        if ges_clip.ui.video_widget:
+                            ges_clip.ui.video_widget.update_previewer()
 
     def _destroyedCb(self, unused_main_window):
         """Cleanup before destroying this window."""
diff --git a/pitivi/timeline/elements.py b/pitivi/timeline/elements.py
index 7dca7d71..a58491c1 100644
--- a/pitivi/timeline/elements.py
+++ b/pitivi/timeline/elements.py
@@ -1097,8 +1097,8 @@ class Clip(Gtk.EventBox, Zoomable, Loggable):
         self.ges_clip.ui = self
         self.ges_clip.selected = Selected()
 
-        self._audioSource = None
-        self._videoSource = None
+        self.audio_widget = None
+        self.video_widget = None
 
         self._setupWidget()
         self.__force_position_update = True
@@ -1400,15 +1400,15 @@ class UriClip(SourceClip):
             return
 
         if ges_timeline_element.get_track_type() == GES.TrackType.AUDIO:
-            self._audioSource = AudioUriSource(ges_timeline_element, self.timeline)
-            ges_timeline_element.ui = self._audioSource
-            self._elements_container.pack_end(self._audioSource, True, False, 0)
-            self._audioSource.set_visible(True)
+            self.audio_widget = AudioUriSource(ges_timeline_element, self.timeline)
+            ges_timeline_element.ui = self.audio_widget
+            self._elements_container.pack_end(self.audio_widget, True, False, 0)
+            self.audio_widget.set_visible(True)
         elif ges_timeline_element.get_track_type() == GES.TrackType.VIDEO:
-            self._videoSource = VideoUriSource(ges_timeline_element, self.timeline)
-            ges_timeline_element.ui = self._videoSource
-            self._elements_container.pack_start(self._videoSource, True, False, 0)
-            self._videoSource.set_visible(True)
+            self.video_widget = VideoUriSource(ges_timeline_element, self.timeline)
+            ges_timeline_element.ui = self.video_widget
+            self._elements_container.pack_start(self.video_widget, True, False, 0)
+            self.video_widget.set_visible(True)
 
 
 class TitleClip(SourceClip):
@@ -1421,10 +1421,10 @@ class TitleClip(SourceClip):
             return
 
         if ges_timeline_element.get_track_type() == GES.TrackType.VIDEO:
-            self._videoSource = TitleSource(ges_timeline_element, self.timeline)
-            ges_timeline_element.ui = self._videoSource
-            self._elements_container.pack_start(self._videoSource, True, False, 0)
-            self._videoSource.set_visible(True)
+            self.video_widget = TitleSource(ges_timeline_element, self.timeline)
+            ges_timeline_element.ui = self.video_widget
+            self._elements_container.pack_start(self.video_widget, True, False, 0)
+            self.video_widget.set_visible(True)
 
 
 class TransitionClip(Clip):
diff --git a/tests/test_timeline_timeline.py b/tests/test_timeline_timeline.py
index 3eec06b1..6927b924 100644
--- a/tests/test_timeline_timeline.py
+++ b/tests/test_timeline_timeline.py
@@ -459,8 +459,8 @@ class TestGrouping(BaseTestTimeline):
             vclip = ges_clip0.ui
             vtrackelem = bTrackElem0.ui
 
-        self.assertEqual(aclip._audioSource, atrackelem)
-        self.assertEqual(vclip._videoSource, vtrackelem)
+        self.assertEqual(aclip.audio_widget, atrackelem)
+        self.assertEqual(vclip.video_widget, vtrackelem)
 
     def test_dragging_group_on_separator(self):
         # Create two clips on different layers and group them.