QmlOutline: Cut down update times considerably

Cut down update times of Outline by a magnitude by only emitting
itemChanged signal if absolutely needed. This doesn't include the change
of the icon, because QIcon is missing a comparison operator ...

1 files changed, 6 insertions, 1 deletions

diff --git a/src/plugins/qmljseditor/qmljsoutline.cpp b/src/plugins/qmljseditor/qmljsoutline.cpp
index ae2438942a..db9da7dfd6 100644
--- a/src/plugins/qmljseditor/qmljsoutline.cpp
+++ b/src/plugins/qmljseditor/qmljsoutline.cpp
@@ -158,7 +158,12 @@ void QmlJSOutlineWidget::updateSelectionInText(const QItemSelection &selection)
 
     if (!selection.indexes().isEmpty()) {
         QModelIndex index = selection.indexes().first();
-        AST::SourceLocation location = index.data(QmlOutlineModel::SourceLocationRole).value<AST::SourceLocation>();
+        QModelIndex sourceIndex = m_filterModel->mapToSource(index);
+
+        AST::SourceLocation location = m_editor->outlineModel()->sourceLocation(sourceIndex);
+
+        if (!location.isValid())
+            return;
 
         Core::EditorManager *editorManager = Core::EditorManager::instance();
         editorManager->cutForwardNavigationHistory();