Function parseChildNode

apps/sim/lib/pptx-renderer/model/slide.ts:229–266

* Parse a single child node from spTree, dispatching to the appropriate parser.

(
  child: SafeXmlNode,
  rels: Map<string, RelEntry>,
  slidePath: string,
  diagramDrawings?: Map<string, string>
)

 * Parse a single child node from spTree, dispatching to the appropriate parser.
 */
function parseChildNode(
  child: SafeXmlNode,
  rels: Map<string, RelEntry>,
  slidePath: string,
  diagramDrawings?: Map<string, string>
): SlideNode | undefined {
  const tag = child.localName

  switch (tag) {
    case 'sp':
    case 'cxnSp':
      return parseShapeNode(child)
    case 'pic':
      return parsePicNode(child)
    case 'grpSp':
      return parseGroupNode(child)
    case 'graphicFrame':
      if (isTableFrame(child)) {
        return parseTableNode(child)
      }
      if (isChartFrame(child)) {
        return parseChartNode(child, rels, slidePath)
      }
      // SmartArt diagram with drawing fallback
      if (isDiagramFrame(child) && diagramDrawings) {
        return parseDiagramFrame(child, rels, slidePath, diagramDrawings)
      }
      // OLE object with fallback picture (e.g. embedded PDF preview on slide 34)
      {
        const olePic = parseOleFrameAsPicture(child)
        if (olePic) return olePic
      }
      // Non-table/chart/ole graphic frames — skip
      return undefined
    default:
      return undefined
  }
}

/**
 * Find the layout relationship target from a slide's rels map.