MudDropContainer : EventCallback ItemDropped triggered unexpectedly on mobile devices

[chatcoda]

Bug type

Component

Component name

MudDropContainer

What happened?

Under certain circumstances, MudDropContainer's ItemDropped EventCallback is triggered unexpectedly on mobile devices only.
It seems to occur if another EventCallback exists on an item rendered within the MudDropContainer.
Note: could be the same cause than #7182

Expected behavior

MudDropContainer's ItemDropped EventCallback should not be triggered unexpectedly on mobile devices.

Reproduction link

https://try.mudblazor.com/snippet/mumnOCaXzXjgFUcX

Reproduction steps

1. Enable device emulation in browser (iOS or Android)
2. Click on DropItemX
3. See that EventCallback ItemDropped is triggered (event is written below)

Relevant log output

No response

Version (bug)

6.8.0

Version (working)

No response

What browsers are you seeing the problem on?

Microsoft Edge, Safari

On what operating system are you experiencing the issue?

Windows, iOS

Pull Request

• I would like to do a Pull Request

Code of Conduct

• I agree to follow this project's Code of Conduct

[danielchalmers]

Is this still a problem in v6.19.1? May have been fixed by #7424 - I think it's working on my end

[chatcoda]

Unfortunately v6.19.1 does not fix the problem...
https://try.mudblazor.com/snippet/mumnOCaXzXjgFUcX
Video: https://github.com/MudBlazor/MudBlazor/assets/16852528/012b5e67-2249-4f87-a31e-3c97b0f4ff4c

[danielchalmers]

Oh I misunderstood the premise completely, thanks for the update.

If you're able to take a look at submitting a PR yourself I'll make sure it gets reviewed quickly. Otherwise I don't see this getting fixed in the near future if I'm being honest. Too time constrained.

[ScarletKuro]

Honestly, to fix most problems with the touch devices, it would probably require to use this polyfill DragDropTouch (it's not too big) with this modification Postlagerkarte/blazor-dragdrop#147 (comment)