Prevent Theme resource from emitting changes during bulk operations

editor/plugins/theme_editor_plugin.cpp

@@ -756,7 +756,9 @@ void ThemeItemImportTree::_import_selected() {
  return;
  }
 
- ProgressDialog::get_singleton()->add_task("import_theme_items", TTR("Importing Theme Items"), selected_items.size());
+ // Prevent changes from immediatelly being reported while the operation is still ongoing.
+ edited_theme->_freeze_change_propagation();
+ ProgressDialog::get_singleton()->add_task("import_theme_items", TTR("Importing Theme Items"), selected_items.size() + 2);
 
  int idx = 0;
  for (Map<ThemeItem, ItemCheckedState>::Element *E = selected_items.front(); E; E = E->next()) {
@@ -814,6 +816,12 @@ void ThemeItemImportTree::_import_selected() {
  idx++;
  }
 
+ // Allow changes to be reported now that the operation is finished.
+ ProgressDialog::get_singleton()->task_step("import_theme_items", TTR("Updating the editor"), idx++);
+ edited_theme->_unfreeze_and_propagate_changes();
+ // Make sure the task is not ended before the editor freezes to update the Inspector.
+ ProgressDialog::get_singleton()->task_step("import_theme_items", TTR("Finalizing"), idx++);
+
  ProgressDialog::get_singleton()->end_task("import_theme_items");
  emit_signal("items_imported");
 }
@@ -1488,15 +1496,24 @@ void ThemeItemEditorDialog::_add_theme_item(Theme::DataType p_data_type, String
 void ThemeItemEditorDialog::_remove_data_type_items(Theme::DataType p_data_type, String p_item_type) {
  List<StringName> names;
 
+ // Prevent changes from immediatelly being reported while the operation is still ongoing.
+ edited_theme->_freeze_change_propagation();
+
  edited_theme->get_theme_item_list(p_data_type, p_item_type, &names);
  for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
  edited_theme->clear_theme_item(p_data_type, E->get(), p_item_type);
  }
+
+ // Allow changes to be reported now that the operation is finished.
+ edited_theme->_unfreeze_and_propagate_changes();
 }
 
 void ThemeItemEditorDialog::_remove_class_items() {
  List<StringName> names;
 
+ // Prevent changes from immediatelly being reported while the operation is still ongoing.
+ edited_theme->_freeze_change_propagation();
+
  for (int dt = 0; dt < Theme::DATA_TYPE_MAX; dt++) {
  Theme::DataType data_type = (Theme::DataType)dt;
 
@@ -1509,12 +1526,18 @@ void ThemeItemEditorDialog::_remove_class_items() {
  }
  }
 
+ // Allow changes to be reported now that the operation is finished.
+ edited_theme->_unfreeze_and_propagate_changes();
+
  _update_edit_item_tree(edited_item_type);
 }
 
 void ThemeItemEditorDialog::_remove_custom_items() {
  List<StringName> names;
 
+ // Prevent changes from immediatelly being reported while the operation is still ongoing.
+ edited_theme->_freeze_change_propagation();
+
  for (int dt = 0; dt < Theme::DATA_TYPE_MAX; dt++) {
  Theme::DataType data_type = (Theme::DataType)dt;
 
@@ -1527,12 +1550,18 @@ void ThemeItemEditorDialog::_remove_custom_items() {
  }
  }
 
+ // Allow changes to be reported now that the operation is finished.
+ edited_theme->_unfreeze_and_propagate_changes();
+
  _update_edit_item_tree(edited_item_type);
 }
 
 void ThemeItemEditorDialog::_remove_all_items() {
  List<StringName> names;
 
+ // Prevent changes from immediatelly being reported while the operation is still ongoing.
+ edited_theme->_freeze_change_propagation();
+
  for (int dt = 0; dt < Theme::DATA_TYPE_MAX; dt++) {
  Theme::DataType data_type = (Theme::DataType)dt;
 
@@ -1543,6 +1572,9 @@ void ThemeItemEditorDialog::_remove_all_items() {
  }
  }
 
+ // Allow changes to be reported now that the operation is finished.
+ edited_theme->_unfreeze_and_propagate_changes();
+
  _update_edit_item_tree(edited_item_type);
 }