[pitivi/1.0] medialibrary: Do not show assets while loading a project

[Thibault Saunier <tsaunier src gnome org>]

commit 85babd4ad4d07ea0c54b1aee62628ee2ac6133f4
Author: Thibault Saunier <tsaunier gnome org>
Date:   Sun Aug 27 07:46:59 2017 -0300

    medialibrary: Do not show assets while loading a project
    
    Updating the iconview is far from efficient and we can see the progressbar
    already. In the project from T7851 this makes loading the project
    lasting from 58secs to 38secs here.
    
    Reviewed-by: Alex Băluț <<alexandru balut gmail com>>
    Differential Revision: https://phabricator.freedesktop.org/D1883

 pitivi/medialibrary.py |   39 +++++++++++++++++++++------------------
 1 files changed, 21 insertions(+), 18 deletions(-)
---
diff --git a/pitivi/medialibrary.py b/pitivi/medialibrary.py
index ef7176e..cc6ed9b 100644
--- a/pitivi/medialibrary.py
+++ b/pitivi/medialibrary.py
@@ -366,7 +366,7 @@ class MediaLibraryWidget(Gtk.Box, Loggable):
         Gtk.Box.__init__(self)
         Loggable.__init__(self)
 
-        self.pending_rows = []
+        self._pending_assets = []
 
         self.app = app
         self._errors = []
@@ -787,23 +787,26 @@ class MediaLibraryWidget(Gtk.Box, Loggable):
 
         self.debug("Adding asset %s", asset.props.id)
 
-        thumbs_decorator = AssetThumbnail(asset, self.app.proxy_manager)
-        name = info_name(asset)
-        self.pending_rows.append((thumbs_decorator.small_thumb,
-                                  thumbs_decorator.large_thumb,
-                                  beautify_asset(asset),
-                                  asset,
-                                  asset.props.id,
-                                  name,
-                                  thumbs_decorator))
-        self._flushPendingRows()
+        self._pending_assets.append(asset)
 
-    def _flushPendingRows(self):
-        self.debug("Flushing %d pending model rows", len(self.pending_rows))
-        for row in self.pending_rows:
-            self.storemodel.append(row)
+        if self._project.loaded:
+            self._flushPendingAssets()
+
+    def _flushPendingAssets(self):
+        self.debug("Flushing %d pending model rows", len(self._pending_assets))
+        for asset in self._pending_assets:
+            thumbs_decorator = AssetThumbnail(asset, self.app.proxy_manager)
+            name = info_name(asset)
+
+            self.storemodel.append((thumbs_decorator.small_thumb,
+                                    thumbs_decorator.large_thumb,
+                                    beautify_asset(asset),
+                                    asset,
+                                    asset.props.id,
+                                    name,
+                                    thumbs_decorator))
 
-        del self.pending_rows[:]
+        del self._pending_assets[:]
 
     # medialibrary callbacks
 
@@ -940,7 +943,7 @@ class MediaLibraryWidget(Gtk.Box, Loggable):
     def _doneImporting(self):
         self.debug("Importing took %.3f seconds",
                    time.time() - self.import_start_time)
-        self._flushPendingRows()
+        self._flushPendingAssets()
         self._progressbar.hide()
         if self._errors:
             errors_amount = len(self._errors)
@@ -1385,7 +1388,7 @@ class MediaLibraryWidget(Gtk.Box, Loggable):
 
     def _newProjectLoadedCb(self, unused_project_manager, project):
         # Make sure that the sources added to the project are added
-        self._flushPendingRows()
+        self._flushPendingAssets()
 
     def _newProjectFailedCb(self, unused_project_manager, unused_uri, unused_reason):
         self.storemodel.clear()