Empty documents and placeholders

[oyeanuj]

Hi @Soreine! As per our conversation, here is the issue.

Essentially, lets say I add a block element to a new document which triggers the trailing block. All good so far. But if I delete that block level element, I’d expect to go back to an empty document (with no trailing block and only a placeholder). But today, the trailing block stays, thus preventing placeholder from being triggered.

It would be useful to have an option that normalizes (or not) document state, when it is empty. This is the logic that Slate uses to determine if something is empty, and should have placeholder triggered - https://github.com/ianstormtaylor/slate/blob/master/src/components/placeholder.js#L45-L57

Thank you!

[oyeanuj]

@Soreine, here is a JSFiddle demonstrating the same: https://jsfiddle.net/Lmdd44dz/1/

Steps

1. Click on 'Toggle Heading' to add a heading. At this point, the heading is added and slate-trailing-block adds a trailing block as well. All is well!
2. If you have text in the heading, delete that. When you have no text, click again on 'Toggle Heading'. The heading is now removed, there is only the original paragraph that one started with.

At this point, the placeholder doesn't show up (even though the user basically just took an action and undid it) because there is an extra slate-trailing-block paragraph still there.

Hope this helps!

[oyeanuj]

@Soreine Wondering if you have had a chance to consider this? Thanks!

[Soreine]

Have you found a solution for this?
Maybe a normalize function that removes extra empty paragraphs at the end of the document, up to the current selection (The user should still be able to add several empty paragraph at the start of the document)