Resize DownloadModel based on last item

qutebrowser/models/downloadmodel.py

@@ -53,6 +53,10 @@ class DownloadModel(QAbstractListModel):
         model_idx = self.index(idx, 0)
         self.dataChanged.emit(model_idx, model_idx)
 
+    def last_index(self):
+        """Get the last index in the model."""
+        return self.index(self.rowCount() - 1)
+
     def headerData(self, section, orientation, role):
         """Simple constant header."""
         if (section == 0 and orientation == Qt.Horizontal and

qutebrowser/widgets/downloads.py

@@ -72,7 +72,8 @@ class DownloadView(QListView):
 
     def sizeHint(self):
         """Return sizeHint based on the view contents."""
-        height = self.sizeHintForRow(0)
+        idx = self.model().last_index()
+        height = self.visualRect(idx).bottom()
         if height != -1:
             return QSize(0, height + 2)
         else: