If the footer property is a Templates.render() promise, and the modal is
set to show immediately (show=true), the show() logic - which contains
the footer show/hide logic - can run before the footer content is set
(i.e. before the promise chain is complete). In such cases, the footer
will be marked as hidden and must be made visible again.
* Makes it possible to safely call acquire_lock so that it throws an
exception instead of returning false if it can't get a lock (which
most existing uses assumed it already does).
* Fix some omissions from the requirelockingbeforewrite option (it
now checks on delete).
* Modinfo uses a versioned cache, so it is not necessary to delete
items, only increase the version. (Provided we keep track of
cacherev carefully...)
Core login page and style changes to support mfa login workflow.
These are minor adjustments to core CSS and a core renderer
change to allow login workflow to better support MFA.
This works the same as the customclassoverride on the submit element,
in that only the 'btn' class is hard coded in the template. Passing
$options['customclassoverride'] to the constructor allows calling code
to specify other classes to be added beside 'btn'. E.g. 'btn-primary'.
If no options array is passed, 'btn-secondary' is used (the existing
class used for button elements).
The $CFG->svgicons setting was introduced in Moodle 2.4 due to incomplete
SVG support in certain web browsers.
The landscape has evolved significantly since then, and all modern browsers
now handle SVG files correctly.
The $CFG->svgicons settings has been removed and the supports_svg() method
has been updated with currently supported browsers (IE support was removed
in Moodle 3.10).
Ensure that all system icons now come with an accompanying SVG file.
Any missing SVG files have been addressed, and to maintain this consistency,
a PHPUnit test has been implemented to validate the inclusion of SVG files
for any new icons.
The above syntax is defined as supported by the class, for example the
format '5/10' means:
"At every 10th <unit> from 5 through <max>."
It is analogous to '5-<max>/10'.
