Note

• Some tooltips are displayed like the app detects hovering on some button when only the touchscreen is being used.

Affected versions

• Nightly v67.0a1 (2019-02-14) (arch64 build)

Affected platforms

• Windows 10 v1803 on Lenovo Yoga (table mode)

Steps to reproduce

1. Open https://www.google.com/maps
2. Tap on the "Directions" icon button from the right of the search input box.
   (The icon looks like a blue diamond-shaped street sign with an arrow pointing right.)

Expected result

• No unexpected tool-tip is displayed.

Actual result

• "Close directions" tooltip is displayed, like when hovering the area with a cursor.

Steps to reproduce - part 2
4. Tap on the "X" button to close the "Directions" mode.

Expected

• No unexpected tool-tip is displayed.

Actual

• "Directions" tooltip is displayed like when hovering the area with a cursor.

Additional notes

• This issue does not occur in EDGE browser, but it does occur on Chrome in a slightly different way.

Hmm, so, we shouldn't show any tooltips I guess.
Like https://searchfox.org/mozilla-central/rev/38035ee92463c9e9fbca729ac7e66476ac7eb27a/layout/xul/nsXULTooltipListener.cpp#138-141 checking whether mouseEvent->MozInputSource() is MOZ_SOURCE_TOUCH or something like that. And something for e10s too.