Function updateHtml

modules/tinymce/src/plugins/media/main/ts/core/UpdateHtml.ts:33–122

(html: string, data: Partial<MediaData>, updateAll?: boolean, schema?: Schema)

type SourceMime = `${Source}mime`;

const updateHtml = (html: string, data: Partial<MediaData>, updateAll?: boolean, schema?: Schema): string => {
  let numSources = 0;
  let sourceCount = 0;

  const parser = Parser(schema);
  parser.addNodeFilter('source', (nodes) => numSources = nodes.length);
  const rootNode = parser.parse(html);

  for (let node: AstNode | null | undefined = rootNode; node; node = node.walk()) {
    if (node.type === 1) {
      const name = node.name;

      if (node.attr('data-ephox-embed-iri')) {
        updateEphoxEmbed(data, node);
        // Don't continue to update if we find an EME embed
        break;
      } else {
        switch (name) {
          case 'video':
          case 'object':
          case 'embed':
          case 'img':
          case 'iframe':
            if (data.height !== undefined && data.width !== undefined) {
              node.attr('width', data.width);
              node.attr('height', data.height);
            }
            break;
        }

        if (updateAll) {
          switch (name) {
            case 'video':
              node.attr('poster', data.poster);
              node.attr('src', null);

              // Add <source> child elements
              for (let index = numSources; index < 2; index++) {
                if (data[sources[index]]) {
                  const source = new AstNode('source', 1);
                  source.attr('src', data[sources[index]]);
                  source.attr('type', data[sources[index] + 'mime' as SourceMime] || null);
                  node.append(source);
                }
              }
              break;

            case 'iframe':
              node.attr('src', data.source);
              break;

            case 'object':
              const hasImage = node.getAll('img').length > 0;
              if (data.poster && !hasImage) {
                node.attr('src', data.poster);

                const img = new AstNode('img', 1);
                img.attr('src', data.poster);