1404768 - [Form Autofill] Implement clear button in dropdown menu

Status: NEW

(Toolkit :: Form Autofill, enhancement, P3)

Description

[Ray Lin[:ralin]]

A tracker bug for form autofill clear button.

UX spec: https://mozilla.invisionapp.com/share/AP8TFZ22G#/screens/252880118

Comment 1

[Ray Lin[:ralin]]

Things need to be considered/done:

1. a new binding for clear button (handle click/press)
2. clear button styling
3. styling in high-contrast mode to make distinction between preference button and clear button
4. the timing to show the dropdown with clear button and don't regress history fallback (will file another bug to discuss some scenarios)
5. don't clear the fields that weren't auto-filled by us.
6. consider which way to clear the value. Either manually setting the value to empty one after one, or bring the ability to go the original auto-filling path with an empty profile. e.g.
{
  name: "",
  email: "",
  organization: "",
}

7. follow point 6, how to restore the <select> fields? should we persist the default selected values in somewhere in the first place after page loaded?
8. add unit tests for autocomplete result
9. add mochitests for both address/credit card fields and result fallback

Comment 3

[B.J. Herbison]

The linked specification isn't precise. Clarifications are discussed in bug 1378213.