1703804 - The double-tap to zoom functionality is not working on the Spiegel.de’s side menu when focused

Status: RESOLVED DUPLICATE of bug 1704041

(Core :: Panning and Zooming, defect, P2)

Description

[Emil Ghitta, QA [:emilghitta]]

Affected versions

• Firefox 89.0a1 (BuildId:20210407212527)
• Firefox 88.0b8 (BuildId:20210406185740)

Affected platforms

• macOS 10.15.7
• macOS 10.14

Unaffected platforms

• Windows 10 64bit.
• Ubuntu 20.04

Steps to reproduce

1. Launch Firefox.
2. Access the following link
3. Open the pages side context menu.
4. Left click on an empty/blank space from the side menu in order to bring the focus to the side context menu.
5. Double-tap with 2 fingers inside the side menu.

Expected result

• The double-tap to zoom functionality works as expected and zoom level can be successfully applied on the side menu (as in Safari or Chrome).

Actual result

• The double-tap to zoom functionality is not working on the side menu.

Regression Range

• I don’t think that this is a regression.

Notes

• The pinch to zoom functionality seems to work as expected for the side menu.
• Access the following link (Mozilla account needed) for screencast.
• The double-tap to zoom functionality is disabled by default in beta 88 so I'm marking the 88 flag as disabled.

Comment 1

[Timothy Nikkel (:tnikkel)]

The apzc has mAllowDoubleTapZoom as false because that is what it initializes it to and there has not been a call to UpdateZoomConstraints. The apzc is created when you click on the sidebar. It gets several NotifyLayersUpdated calls but no UpdateZoomConstraints.

Comment 2

[Timothy Nikkel (:tnikkel)]

Ah, it's fixed content, that probably is key.