onSetNodeName method

Implementation

void onSetNodeName(int? id, Map<String, dynamic> params) {
  final ctx = dbgContext;
  if (ctx == null) {
    sendToFrontend(id, null);
    return;
  }
  final int? nodeId = params['nodeId'];
  final String? name = params['name'];
  if (nodeId == null || name == null || name.isEmpty) {
    sendToFrontend(id, null);
    return;
  }

  final targetId = ctx.getTargetIdByNodeId(nodeId);
  if (targetId == null || targetId == 0) {
    sendToFrontend(id, null);
    return;
  }

  final Node? node = ctx.getBindingObject(Pointer.fromAddress(targetId)) as Node?;
  if (node is! Element) {
    // Only elements can be renamed by tag
    sendToFrontend(id, JSONEncodableMap({'nodeId': nodeId}));
    return;
  }

  final controller = ctx.getController() ?? devtoolsService.controller;
  if (controller == null) {
    sendToFrontend(id, JSONEncodableMap({'nodeId': nodeId}));
    return;
  }

  // Create new native element for the new tag name
  final newPtr = allocateNewBindingObject();
  try {
    controller.view.createElement(newPtr, name);
  } catch (e) {
    sendToFrontend(id, JSONEncodableMap({'nodeId': nodeId}));
    return;
  }

  // Copy attributes/inline styles/id/class via clone helper
  try {
    controller.view.cloneNode(node.pointer!, newPtr);
  } catch (_) {}

  // Move children to the new element (DOM-level; will be included in inserted node payload)
  final Element? newEl = ctx.getBindingObject(newPtr) as Element?;
  if (newEl != null) {
    while (node.firstChild != null) {
      newEl.appendChild(node.firstChild!);
    }
    // Insert new element after the original, then remove original to trigger CDP events
    try {
      controller.view.insertAdjacentNode(node.pointer!, 'afterend', newPtr);
    } catch (_) {}
    try {
      controller.view.removeNode(node.pointer!);
    } catch (_) {
      node.parentNode?.removeChild(node);
    }

    final newId = ctx.forDevtoolsNodeId(newEl);
    sendToFrontend(id, JSONEncodableMap({'nodeId': newId}));
    return;
  }

  // Fallback
  sendToFrontend(id, JSONEncodableMap({'nodeId': nodeId}));
}