Lost ability to copy sender email address to clipboard

[ChristophWurst]

Steps to reproduce

1. Open an email
2. Click on the sender

Expected behavior

Find a Copy to clipboard

Actual behavior

No such option since #12666.

Only to/cc/bcc can be clicked and copied.

Mail app version

v5.9

Nextcloud version

No response

Mailserver or service

No response

Operating system

No response

PHP engine version

None

Nextcloud memory caching

No response

Web server

None

Database

None

Additional info

Regression of #12666.

[ChristophWurst]

cc @sturlan @jancborchardt

I think we should also have a line for Sender: when the to/cc/bcc is expanded.

[jancborchardt]

@ChristophWurst wouldn’t that be duplicating the opening trigger? Maybe we simply have to override some user-select:none; that is set for the button?

Also cc @nimishavijay for UX.

[ChristophWurst]

I'm not sure. The Copy to clipboard is actually used by users. Asking them to select and copy text manually feels like step back.

[ChristophWurst]

Even if it duplicates, so be it. The user actively clicks to expands that info. So let's give the user all the info.

[sturlan]

RecipientBubble (src/src/components/RecipientBubble.vue) wraps every address in an NcPopover. Clicking it opens a card with Reply / Add to Contact / Copy to clipboard actions (onClickCopyToClipboard in the component).

Before PR #12666, the sender email in the expanded header was rendered as a RecipientBubble, so clicking it triggered that popover.

PR #12666 replaced that RecipientBubble with plain HTML elements that have no popover at all:
— used when hasRecipients is true; clicking it only toggles showRecipients, no contact popover

— used when hasRecipients is false; no interaction whatsoever

Both cases lose the popover ⇒ no copy-to-clipboard.

How to restore it:

Add a From: row (using RecipientBubble) inside the expandable .envelope__recipients section. This row appears only when showRecipients is true (i.e. when the user has clicked the toggle), alongside the existing To/Cc/Bcc rows.
Clicking the sender bubble there opens the familiar popover with Copy to clipboard.

This also naturally satisfies the separate request to show "Sender:" when to/cc/bcc are expanded.

For the hasRecipients=false case (no To/Cc/Bcc → toggle never appears → user can never open the recipients section), the

should be replaced with a RecipientBubble inline in the header so clicking the sender
address always has the copy-to-clipboard popover.

If you agree with the proposed solution let me know

[sturlan]

Here are the screenshots