private void FindDifferencesInNonquestionBlocks()
{
var originalBlocks = OriginalSlide.Blocks.NotOfType <SlideBlock, AbstractQuestionBlock>().ToList();
var changedBlocks = ChangedSlide.Blocks.NotOfType <SlideBlock, AbstractQuestionBlock>().ToList();
foreach (var pair in originalBlocks.Zip(changedBlocks, Tuple.Create))
{
var isBlocksEqual = pair.Item1.XmlSerialize(true) == pair.Item2.XmlSerialize(true);
if (!isBlocksEqual)
{
var slideBlockDiff = new SlideBlockDiff(pair.Item1, pair.Item2);
SlideBlockDiffs.Add(slideBlockDiff);
}
}
}
private void FindDifferencesInQuestionBlocks()
{
var originalBlocks = OriginalSlide.Blocks.OfType <AbstractQuestionBlock>().ToList();
var changedBlocks = ChangedSlide.Blocks.OfType <AbstractQuestionBlock>().ToList();
var originalBlocksIds = originalBlocks.Select(b => b.Id).ToImmutableHashSet();
foreach (var block in originalBlocks)
{
var otherBlock = changedBlocks.FirstOrDefault(b => b.Id == block.Id);
if (otherBlock == null)
{
RemovedBlocks.Add(block);
}
else if (block.XmlSerialize(true) != otherBlock.XmlSerialize(true))
{
var slideBlockDiff = new SlideBlockDiff(block, otherBlock);
SlideBlockDiffs.Add(slideBlockDiff);
}
}
InsertedBlocks.AddRange(changedBlocks.Where(b => !originalBlocksIds.Contains(b.Id)));
}
