QmlJS: keep track of cursor position in reformatting

Task-number: QTCREATORBUG-18416
Change-Id: I30c07e0bff1b3f3933ff0e4aee8f1f2c81bd5ef6
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

1 files changed, 10 insertions, 4 deletions

diff --git a/src/plugins/qmljseditor/qmljseditorplugin.cpp b/src/plugins/qmljseditor/qmljseditorplugin.cpp
index 9a427a1b08..3faeda4512 100644
--- a/src/plugins/qmljseditor/qmljseditorplugin.cpp
+++ b/src/plugins/qmljseditor/qmljseditorplugin.cpp
@@ -258,10 +258,16 @@ void QmlJSEditorPlugin::reformatFile()
             return;
 
         const QString &newText = QmlJS::reformat(document);
-        QTextCursor tc(m_currentDocument->document());
-        tc.movePosition(QTextCursor::Start);
-        tc.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
-        tc.insertText(newText);
+        QmlJSEditorWidget *widget = EditorManager::currentEditor()
+                ? qobject_cast<QmlJSEditorWidget*>(EditorManager::currentEditor()->widget())
+                : nullptr;
+        if (widget) {
+            const int position = widget->position();
+            m_currentDocument->document()->setPlainText(newText);
+            widget->setCursorPosition(position);
+        } else {
+            m_currentDocument->document()->setPlainText(newText);
+        }
     }
 }