Lua: Add possibility to get all opened editors

Change-Id: Iae68fca2ec0f42043b3e4db7de91babba60e29e0
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/lua/bindings/texteditor.cpp

@@ -224,6 +224,15 @@ void setupTextEditorModule()
             return BaseTextEditor::currentTextEditor();
         };
 
+        result["openedEditors"] = [lua]() mutable -> sol::table {
+            QList<BaseTextEditor *> editors = BaseTextEditor::openedTextEditors();
+            sol::table result = lua.create_table();
+            for (auto& editor : editors) {
+                result.add(TextEditorPtr(editor));
+            }
+            return result;
+        };
+
         result.new_usertype<MultiTextCursor>(
             "MultiTextCursor",
             sol::no_constructor,

src/plugins/texteditor/texteditor.cpp

@@ -10364,6 +10364,11 @@ BaseTextEditor *BaseTextEditor::currentTextEditor()
     return qobject_cast<BaseTextEditor *>(EditorManager::currentEditor());
 }
 
+QList<BaseTextEditor *> BaseTextEditor::openedTextEditors()
+{
+    return qobject_container_cast<BaseTextEditor *>(DocumentModel::editorsForOpenedDocuments());
+}
+
 QVector<BaseTextEditor *> BaseTextEditor::textEditorsForDocument(TextDocument *textDocument)
 {
     QVector<BaseTextEditor *> ret;

src/plugins/texteditor/texteditor.h

@@ -127,6 +127,7 @@ public:
     virtual void finalizeInitialization() {}
 
     static BaseTextEditor *currentTextEditor();
+    static QList<BaseTextEditor *> openedTextEditors();
     static QVector<BaseTextEditor *> textEditorsForDocument(TextDocument *textDocument);
 
     TextEditorWidget *editorWidget() const;