Persistent teardrop cursor on laptops with touchscreens, even when using external mouse/keyboard

[mTrax-]

Hello,

I'm opening a bug report rather than a discussion as I believe the behavior is not as intended. If it turns out to be an error on my part, please accept my apologies.

Describe the Bug

I have a Collabora Online environment associated with Nextcloud via two containers. Everything works very well.
However, there's a blocking issue for my users related to the "teardrop" cursor when Collabora detects a touchscreen in the system.

All my users have laptops with touchscreens, and regardless of how the laptop is used (in standalone mode or on a docking station with screen/keyboard/mouse), the cursor displays a teardrop as if in tablet mode. From what I understand, it shouldn't display in this case.

Steps to Reproduce

Environment: laptop with touchscreen connected to a keyboard / mouse / screen. Nextcloud 30.0.1 and Collabora Online (coolwsd) 24.04.8.2

1. Create a new document
2. Observe the teardrop below the cursor

Expected Behavior

• No teardrop when connected to a docking station.
• Have an option in the interface to hide it for users who are in laptop touchscreen mode (but with laptop keyboard/mouse) and who don't want this "pustule".

Actual Behavior

• Teardrop in all scenarios on this type of device.

Screenshots

If necessary for understanding the problem, I can add screenshots

Desktop

• Collabora version: 24.04.8.2
• OS and version: Windows 11
• Browser and version: Chrome, Firefox, Edge, regardless of version.

Additional Context

This is a blocking element for the POC I'm currently setting up, and I'm looking for a way to disable it.
As there doesn't seem to be an option to manually display or hide it in the settings or via a keyboard shortcut, I searched the code and found two occurrences:

• The first concerning the detection of screen type via JavaScript: Unify touchscreen handling, remove L.Browser.touch #7656
• The second via CSS and the media type @media(pointer:fine) to modify the two classes .text-selection-handle-start and .text-selection-handle-end: Text droplet (Teardrop): hide it when on desktop #9182

I wanted to confirm with you that there is any workaround to disable this "teardrop".

On my side, I tried modifying the following files in the container:

• /usr/share/coolwsd/browser/dist/nextcloud/branding.css
• /usr/share/coolwsd/browser/dist/nextcloud/branding-tablet.css
  as well as
• /usr/share/coolwsd/browser/dist/branding-tablet.css
• /usr/share/coolwsd/browser/dist/device-tablet.css

by forcing display: none via:

.text-selection-handle-start, .text-selection-handle-end {
    display: none !important;
}

This has been unsuccessful so far.

I know this may seem minor to block a POC, but unfortunately, the display of this teardrop on a standard desktop screen puts off those evaluating the solution.
Do you have any suggestions, or has anyone encountered this scenario before?

Thank you.