Method findAncestorNode

src/TextSnapshot.ts:201–231

(
      handle: ElementHandle,
    )

    };

    const findAncestorNode = async (
      handle: ElementHandle,
    ): Promise<TextSnapshotNode | null> => {
      let ancestorHandle = await handle.evaluateHandle(el => el.parentElement);

      while (ancestorHandle) {
        const ancestorElement = ancestorHandle.asElement();
        if (!ancestorElement) {
          await ancestorHandle.dispose();
          return null;
        }

        const ancestorBackendId = await ancestorElement.backendNodeId();
        if (ancestorBackendId) {
          const ancestorNode = idToNode
            .values()
            .find(node => node.backendNodeId === ancestorBackendId);
          if (ancestorNode) {
            await ancestorHandle.dispose();
            return ancestorNode;
          }
        }

        const nextHandle = await ancestorElement.evaluateHandle(
          el => el.parentElement,
        );
        await ancestorHandle.dispose();
        ancestorHandle = nextHandle;
      }
      return null;
    };

    const findDescendantNodes = async (
      backendNodeId?: number,