Detect if a view has been destroyed?

1

I’m having an issue with async uploading of images, mostly based on the ProseMirror upload example.

If for any reason the view is destroyed before the Promise is resolved, then I get an error:

index.js:4928 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'matchesNode')
    at EditorView.updateStateInner (index.js:4928)
    at EditorView.updateState (index.js:4899)
    at EditorView.dispatchTransaction (editor.cljs:286)
    at EditorView.dispatch (index.js:5176)
    at eval (placeholder.js:61)

I can’t find an official API to detect whether the view is destroyed so I can bail out of doing anything there. I could check for view.docView since it seems to be set to null when destroyed but would prefer an official API.

2

I’m also interested in this! At the moment I check for view.docView too.

3

That’s a reasonable thing to provide, I agree. prosemirror-view 1.23.0 adds an isDestroyed getter on EditorView.

2 Likes
4

Thanks! The changelog on the website seems to have stalled but I can see the release in npm. Much appreciated!

5

Oh, indeed, there was an invalid doc comment breaking the website build. Should be up to date again now.