1734618 - Provide WebExtension API for "onRecipientsChanged" event

Status: RESOLVED DUPLICATE of bug 1700672

(Thunderbird :: Add-Ons: Extensions API, enhancement)

Description

[Tim Wißmann]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36

Steps to reproduce:

On 08/16/2021 we got our addon "SmartCompose" (https://addons.thunderbird.net/en-us/thunderbird/addon/smartcompose/) reviewed by John Bieling. He mentioned, that both of our experiments should be added to Thunderbird core.

Expected results:

I would like to enhance the compose API by routing to the internal "nativeTab.onRecipientsChanged" event. For this, a new event "onRecipientsChanged" should be available. It should fire, whenever the user makes changes in the recipients list of the message composer (adding, removing or changing recipients).

Proposed permission requirements: compose

Without the API extension, addon developers need to set an composeScript which stores the last state of the recipient list and checks for changes every time it regains the focus.

Comment 1

[Tim Wißmann]

This issue is connected to https://bugzilla.mozilla.org/show_bug.cgi?id=1734620

Comment 2

[Tim Wißmann]

Attachment: id_ed25519.pub

I have read, and agree to abide by, the Commit Access Requirements.