Editor in dialog overlapping another breaks SideMenu and drag-and-drop

[sauerben]

What’s broken?

We have a setup with an editor and a button next to it that opens another editor instance in a dialog above it. In areas where the two editors directly overlap, the SideMenu does not appear in the topmost editor. Drag and drop is also not possible in these overlapping areas.

blocknote-overlapping.mp4

The root cause is likely in findClosestEditorElement (in SideMenu.ts) because it does not consider the z-axis stacking order when determining the editor element.

What did you expect to happen?

Option 1
Ensure Sidebar and drag-and-drop interactions only consider the topmost editor.

Option 2
Add an option to exclude specific editors (for example editors behind a dialog) from the hover and drag detection logic.

Steps to reproduce

Having an editor in a dialog above another editor

Demo:
https://react-shadcn-blockno-nf9x.bolt.host

BlockNote version

No response

Environment

No response

Additional context

No response

Contribution

• I'd be interested in contributing a fix for this issue

Sponsor

• I'm a sponsor and would appreciate if you could look into this sooner than later 💖

[YousefED]

Thanks for reporting! We'll look into this, but as it's a pretty specific case it might be a while before we get to this.

Curious to hear what you're building btw!