[🐛 BUG] Height property on chat control disables auto-scroll

[AlexandreSajus]

What went wrong? 🤔

Setting the height property on a chat control will disable the feature where the chat auto-scrolls down when new messages appear.

Expected Behavior

The auto-scroll feature should function even when height is set

Steps to Reproduce Issue

Run this code and type a bunch of messages until the chat is filled with messages:

from taipy.gui import Gui
import taipy.gui.builder as tgb

messages = []


def evaluate(state, var_name: str, payload: dict):
    state.messages.append(
        [10, "The MP5 is pretty fun to shoot actually, virtually no recoil", "Robot"]
    )
    state.messages = state.messages


with tgb.Page() as page_home:
    tgb.chat(
        messages="{messages}",
        on_action=evaluate,
        height="80vh",
    )

gui = Gui(page=page_home)
gui.run()

The chat will not scroll down for the new messages

Removing the height property solves the issue

Browsers

Chrome

OS

Windows

Version of Taipy

4.0.0

Acceptance Criteria

• A unit test reproducing the bug is added.
• Any new code is covered by a unit tested.
• Check code coverage is at least 90%.
• The bug reporter validated the fix.
• Related issue(s) in taipy-doc are created for documentation and Release Notes are updated.

Code of Conduct

• I have checked the existing issues.
• I am willing to work on this issue (optional)

[TSP06]

@AlexandreSajus would like to take this up can you also label it hacktoberfest

[AlexandreSajus]

Putting this in High as a customer needs this in a dev release by the end of the year

[jrobinAV]

@TSP06 This issue is not open to contribution yet. The Taipy maintainers team first needs to qualify the issue.

[FredLL-Avaiga]

When the chat is filled with message, you need to scroll down once and then the chat does auto-scroll

[AlexandreSajus]

Fixed in 4.0.1
🎉