Reorder and delete slide masters?

[jhaase1]

Both these questions relate to operations that seem nearly possible given the functionality in ModifyPresentationHelper. Is it possible to

1. Remove a specific slide master? This seems closely related to the removeUnusedFiles function
2. Reorder slide master? This seems to be closely related to the sortSlides function.

This is trying to work around the inability to modify in place and replace the original version of the slide master with the new modified version.

[singerla]

I was playing around a bit with some modifications of ppt/presentation.xml.

You could try this:

  let pres = automizer
    .loadRoot(`RootTemplate.pptx`)
    .load(`SlideWithCharts.pptx`, 'charts');

  pres.addSlide('charts', 1, async (slide) => {
    // 
  });

  pres.modify((presXml: XmlDocument) => {
    const slideMasters =
      ModifyPresentationHelper.getSlideMastersCollection(presXml);

   // You can basically rearrange the slideMasters collection
    XmlHelper.sortCollection(slideMasters, [1, 0]);

   // And also remove slideMasters
    XmlHelper.sliceCollection(slideMasters, 1, 0);
  });

The problems are:

• Only the list of xml elements will be updated and no unneeded files are going to be removed from the archive,
• PPT might throw an error message on opening the file, though it can be be opened and includes the desired changes.

This is because of ModifyPresentationHelper.normalizeSlideMasterIds is not working properly when the first id was cut out (see currentId). The above should work if the first (unmodified) master is kept in place.

[singerla]

p:sldMasterId-ids and p:sldLayoutId-ids need to be in a row, otherwise PowerPoint will complain on any p:sldLayoutId-id lower than its corresponding slideMaster-id.