Visually, nothing should have changed.
Changes include
- Convert most `<a [no href]>` to `<button>` when (re-)viewing files:
- `<a [no href]>` are, by HTML definition, not a link and hence cannot
be focused
- `<a class="ui button">` can now be clicked (again?) using
<kbd>Enter</kbd>
- Previously, the installed keypress handler on `.ui.button` elements
disabled it for links somehow
- The `(un)escape file`, the `expand section` and the `expand/collapse
file` buttons can now be focused (and subsequently clicked using only
the keyboard)
- You can now press <kbd>Space</kbd> on a focused `View file` checkbox
to mark the file as viewed.
- previously, this was impossible as this checkbox listened on the wrong
event listener
The `add code comment` button has been left inaccessible for now as it
requires quite a bit of extra logic so that it is unhidden when it is
focused (you can otherwise focus it without seeing it as you are not
hovering on the corresponding line).
---------
Co-authored-by: silverwind <me@silverwind.io>
Followup of #23876 according to my unreleased review demanding tooltips.
Additionally
- add a `muted` equivalent for buttons
- convert `switch to legacy` to an actual button
- enroll `switch to legacy` in the builtin pseudo focus cycle
- remove spaces between the buttons
The effect of the `muted` class is what you would expect: The button
loses all of its normal styling, and is defined only by its content instead.
This will help reduce a11y infractions in the future, as that was one of
the major points why people didn't use `<button>` tags and decided on a
bad fix (i.e. through `<div>`s) instead.
## Appearance

---------
Co-authored-by: silverwind <me@silverwind.io>
Caught by @wxiaoguang in
https://github.com/go-gitea/gitea/pull/23337#issuecomment-1467317742.
Additionally, there were three instances that have the same content as `templates/base/deletion_modal_actions.tmpl` but that are not intended to delete something.
Instead of renaming the template above, these instances were simply re-hard-coded again.
Renaming/improving the template above is left for future PRs.
At the moment, this is only used to replace the color of the `viewed`
checkbox and of the `has changed` label.
Previously, the used variable accentuated always either darker or
lighter, which meant that one theme looked good while the other didn't.
Co-authored-by: silverwind <me@silverwind.io>