Uhf x ckeditor hiding anchors from word

[Arkkimaagi]

UHF-X

Since CKEditor has a bug when navigating links with keyboard arrows near links that creates ghost links in the editor we have tried to mitigate the problem by hiding these links.

Due to another bug UHF-9497 where pasting from word the ckeditor creates anchor links without attributes <a>, our previous solution hides text from the editor that's visible in the resulting page.

What was done

• The css selector targeting the editor-only ghost links was made more specific to target only links that have attributes that create visible artifacts like external link arrows, tel and mailto links, button styles etc.
  • This should reduce the problems caused by the two problems colliding.

How to install

• Make sure your instance is up and running on latest dev branch.
  • git pull origin dev
  • make fresh
• Update the HDBT theme
  • composer require drupal/hdbt:dev-UHF-X_ckeditor_hiding_anchors_from_word
• Run make drush-cr

How to test

• Check that pasting from the word file in the UHF-9497 no longer hides text.
• Check that navigating left of a button link with left keyboard arrow still does not produce visual glitches
• Check that code follows our standards

Designers review

• This PR does not need designers review