1898867 - Pull to refresh triggers element below start point of gesture as if clicked

Status: NEW

(Fenix :: Browser Engine, defect, P3)

Description

[mikaka27]

Attachment: Screen_Recording_20240525_133034_Firefox.mp4

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0

Steps to reproduce:

1. Open https://demo.home-assistant.io/#/lovelace/home
2. Stay on top of website
3. Try to scroll up, but start the gesture from a clickable element

Actual results:

1. Pull to refresh is triggered (that's ok)
2. Clickable element was triggered, as if it was clicked (see video)

Expected results:

1. Pull to refresh should be triggered
2. Clickable element should not be triggered, because our intention is to scroll, not click

Comment 1

[Hiroyuki Ikezoe (:hiro)]

It looks;

1. the clickable element is responded to a touchcancel event
2. Gecko receives a touchcancel event
3. IIRC, SwipeRefreshLayout (which is a component used for pull-to-refresh) sends a touchcancel (ACTION_CANCEL) on starting pull-to-refresh

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:boek, could you have a look please?

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