1434246 - Top Tabs bar is partially displayed when attempting to drag and drop links

Status: NEW

(Firefox for iOS :: General, defect, P3)

Description

[Simon Basca [:SimonB]]

Build: 11.0 (8821)
Device: iPad Air 2
iOS: 11.2.5

Steps to reproduce:
1. Go to bbc.com
2. Scroll a bit down
3. Scroll up to reveal the Top Tabs bar
4. Long tap on a link and attempt to drag and drop it in the URL bar

Actual results:
- The Top Tabs bar sometimes remains partially visible.

Expected results: 
- The Top Tabs bar should remain fixed when attempting to drag and drop links

See video: 
- https://www.youtube.com/watch?v=XomUEyXeBfQ

Comment 1

[Justin D'Arcangelo [:justindarc]]

I'm not sure we can actually fix this. We have no way of hooking into the WKWebView's UIDragInteraction that's responsible for dragging links. I tried to swap out the UIDragInteraction on the WKContentView at runtime and pass-through our own UIDragInteractionDelegate with no luck. Doing so seemed to break the ability to drag links. I'm gonna re-nom this so we can set a new priority in triage because I'm not sure this is actually a v11.0 blocker.

Comment 2

[Justin D'Arcangelo [:justindarc]]

After looking at this again, I'm de-noming this for v11. It is kinda difficult to reproduce and even when it does, the app continues functioning fine aside from the top toolbar being partially visible.