[Bug]: Delayed visual feedback when uploading a large folder via drag and drop

[kesselb]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

There's a delay between dragging the folder and a visual feedback.

Steps to reproduce

1. Have a folder with ~4000 images
2. Drag the folder to Nextcloud
3. It takes about 15 seconds until there's some visual feedback

Nextcloud 28:

9664472.28.webm

Nextcloud 27:

9664472.27.webm

Expected behavior

Feedback that the data is processed.

Installation method

None

Nextcloud Server version

master

Operating system

None

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

server/apps/files/src/services/DropServiceUtils.ts

Line 99 in 5b7dcc1

logger.debug('Handling recursive file tree', { entry: entry.name })

The above log message appears when you drop the folder and therefore we should be able to provide some visual feedback already (e.g. we processing the folder, stay tuned ....)

[susnux]

This is only drag and drop, not on folder upload using the menu?

[kesselb]

This is only drag and drop, not on folder upload using the menu?

Good point.

I don't think it's faster when using the upload files menu.

Screencast.from.2024-07-22.17-07-22.webm

[sorbaugh]

cc @skjnldsv maybe a regression?

[susnux]

This is solved with nextcloud-upload v1.5.0 (once it is released). Tested it locally already and there is no delay anymore.

[susnux]

ref: nextcloud-libraries/nextcloud-upload#1342

[kesselb]

Is the fix backportable to 28?

[susnux]

yes

[susnux]

31, 30, 29 fixed. Backport for 28 in #48946