fix: Blocks being deleted when dropped outside editor container

[matthewlipski]

This PR fixes an issue with block drag & drop that was introduced in PR #1413. The code block

if (this.isDragOrigin && !this.pmView.dom.contains(event.target as Node)) {
  setTimeout(() => this.pmView.dispatch(this.pmView.state.tr.deleteSelection()), 0);
}

is supposed to check if the dragged blocks come from the same editor instance as the handler, but are being dropped in a different editor instance. This is wrong as !this.pmView.dom.contains(event.target as Node) can be any element outside the current editor instance, and not necessarily another editor.

And so, all that ends up happening when a drop event occurs outside the current editor instance is that the selection is deleted.

Closes #1396
Closes #1435

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
blocknote	✅ Ready (Inspect)	Visit Preview	Feb 19, 2025 4:01pm
blocknote-website	✅ Ready (Inspect)	Visit Preview	Feb 19, 2025 4:01pm