Add a Vector-specific user preference to Special:Preferences for
toggling skin version, either Legacy Vector or the latest Vector.
The presentation of the new preference section and the default values
for anonymous, new, and existing accounts are configurable via
$wgVectorShowSkinPreferences, $wgVectorDefaultSkinVersion (to be used by
the feature manager in T244481),
$wgVectorDefaultSkinVersionForExistingAccounts, and
$wgVectorDefaultSkinVersionForNewAccounts. These configurations default
to the fullest experience so that third-party configuration is minimal.
See skin.json for details. The configurations are each tested in
VectorHooksTest.php.
When presentation is enabled, the new preference appears as a checkbox;
enabled is Legacy mode and disable is latest. There are a number of
unfortunate details:
- Showing and hiding a checkbox is supported by OOUI. Showing and hiding
a whole section (Vector skin preferences, in this case) is not so this
additional client JavaScript functionality is added in Core (see
Iaf68b238a8ac7a4fb22b9ef5d6c5a3394ee2e377).
- Stylization as a checkbox is wanted. However, the implied storage type
for OOUI checkboxes is a boolean. This is not wanted in the event that
another skin version is added (e.g., '3' or 'alpha'). As a workaround,
the preference is converted from a boolean to a version string ('1' or
'2') on save in Hooks::onPreferencesFormPreSave() and from a version
string to a checkbox enable / disable string ('1' or '0') in
onGetPreferences(). There a number of test cases to help cover these
concerning details.
Documentation for overriding the skin version as a URL query parameter
is provided in anticipation of T244481.
Bug: T242381
Bug: T245793
Depends-On: Iaf68b238a8ac7a4fb22b9ef5d6c5a3394ee2e377
Depends-On: Ifc2863fca9cd9efd11ac30c780420e8d89e8cb22
Change-Id: I177dad88fc982170641059b6a4f53fbb38eefad6
* Improve their accessibility by giving both links
a full label "Jump to x" and "Jump to y" instead
of "Jump to: ", "x", "y".
This also makes things much better for localisation, for which
we generally discourage use of concatenation.
* Use pure CSS for the toggling of the visibility on focus,
instead of relying on JavaScript. Especially given the
JS comes form core's 'jquery.mw-jump' module, which is
considered technical debt per T195256. Alternatively,
that could be copied to vector.js, but pure CSS
is possible, so why not.
* Use plain <a> links in the HTML instead of wrapped in a <div>.
This solves the long-standing problem whereby the margin
between #contentSub and #mw-content-text had to be awkwardly
negated and overridden in core and on various to make sure that
the wrapper itself would become visible as needed, in a way that
has margin around this. This whole problem doesn't apply when
simply using inline links that aren't part of the regular flow
with .mixin-screen-reader-text. On focus, the individually
focussed link appears in regular flow, without the need for
any custom styles.
* This uses :not(:focus) to naturally make it render in the default
way on focus, and visibibly hidden/clipped otherwise.
This is supported in IE9+ and Android 2+.
There is a way to make it work with CSS2 for IE7-8, by applying
the mixin to '.mw-jump-link' only and then undoing all of
'position', 'width', 'height', 'clip', and 'margin' on :focus.
But I'm not sure that's worth it here. The fallback in IE7-8
for not supporting ":not(:focus)" is that the accessibility
link is simply visible always, which seems like a good fallback
for accessibility, and doesn't hurt anything.
Bug: T195256
Change-Id: Icaadb290f692b3617688d32cbb66dfb007f1c82c
My bad... skinname-<skinname> is used in core to get the skin name.
This reverts commit ac0d123ba8.
Change-Id: I3c7780f9f08081238744fde094804ea8f5dd191a
Stephen Niedzielski
Translation updater bot
Timo Tijhof
Siebrand
Paladox
Bartosz Dziewoński