Can't update message reaction icons after click

[justinwiley]

ALL software version info

python = "3.12"
panel = "^1.4.2"

Description of expected behavior and the observed behavior

After clicking a reaction icon in a ChatMessage, it's sometimes useful to limit the ability of the user to click the reaction button again. For example, if the user clicks thumbs up indicating a message from an agent was good, it may change the behavior of the agent moving forward so they shouldn't be able to alter it afterwards.

See discussion here: https://discourse.holoviz.org/t/how-to-trigger-a-callback-on-favorite-action-on-the-chatinterface/7187

Complete, minimal, self-contained example code that reproduces the issue

import panel as pn

def react_on_click(reactions, message):
    print(reactions)
    message.reaction_icons = pn.chat.ChatReactionIcons(options={})  # message chat icons not set

def bind_on_send(instance, event):
    message = instance.objects[-1]
    pn.bind(react_on_click, message.param.reactions, message, watch=True)

ci = pn.chat.ChatInterface(button_properties={"send": {"post_callback": bind_on_send}})
ci.show()

Stack traceback and/or browser JavaScript console output

The print statement successfully prints out the reaction.

Screenshots or screencasts of the bug in action

N/A

• I may be interested in making a pull request to address this