From 8eb483d66be774c71e35beaa53763faed2f5e5a5 Mon Sep 17 00:00:00 2001
From: Florian Bruhin <git@the-compiler.org>
Date: Mon, 18 May 2015 21:35:14 +0200
Subject: [PATCH] Set Qt.ItemNeverHasChildren for leaf model items.

This allows Qt to do some optimizations.
---
 qutebrowser/browser/downloads.py      | 2 +-
 qutebrowser/completion/models/base.py | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/qutebrowser/browser/downloads.py b/qutebrowser/browser/downloads.py
index 6d12761f6..ab055cbf4 100644
--- a/qutebrowser/browser/downloads.py
+++ b/qutebrowser/browser/downloads.py
@@ -1038,7 +1038,7 @@ class DownloadManager(QAbstractListModel):
         """Override flags so items aren't selectable.
 
         The default would be Qt.ItemIsEnabled | Qt.ItemIsSelectable."""
-        return Qt.ItemIsEnabled
+        return Qt.ItemIsEnabled | Qt.ItemNeverHasChildren
 
     def rowCount(self, parent=QModelIndex()):
         """Get count of active downloads."""
diff --git a/qutebrowser/completion/models/base.py b/qutebrowser/completion/models/base.py
index f4b0cf4eb..b56444013 100644
--- a/qutebrowser/completion/models/base.py
+++ b/qutebrowser/completion/models/base.py
@@ -109,7 +109,8 @@ class BaseCompletionModel(QStandardItemModel):
         qtutils.ensure_valid(index)
         if index.parent().isValid():
             # item
-            return Qt.ItemIsEnabled | Qt.ItemIsSelectable
+            return (Qt.ItemIsEnabled | Qt.ItemIsSelectable |
+                    Qt.ItemNeverHasChildren)
         else:
             # category
             return Qt.NoItemFlags