Since the <ul> and <li> elements for listing the quiz questions and
elements are mainly used for layout purposes, it is better to set the
role of these elements to presentation only.
The aria-label for the <li> element is inappropriate and can also cause
confusion to screen reader users. Better to remove this. Though this is
being used in the confirmation modal so better to just change it to a
data attribute.
Since the <ul> and <li> elements for listing the quiz questions and
elements are mainly used for layout purposes, it is better to set the
role of these elements to presentation only.
Add a default sr-only section heading in order to prevent having an
empty heading for the quiz section which is not good for accessibility.
Plus:
- There's also an existing issue where filters are never applied to
section headings on load. This has been fixed in this commit as well.
- Button role added for the edit section button which enables it to
take advantage of the theme highlighting when it receives focus.
I thought about renaming the class to just plain attempt, but I
acutally think quiz_attempt makes it clearer what this is. Also
not changing the name massively reduces the pain for everyone
updating their code (including me right now!)
Code should just directly use moodle_execption.
Note, some of the existing uses (in web services) were passing a
literal message, not a language string identifier, but I decided
now was not the time to try to fix that.
Webservice doesn't need to set the page URL. Hence,
any function that requires a page URL will raise debugging output.
The patch fixes it by adding a fake URL for the webservice.
The patch also removed assertDebuggingCalled because it is no longer needed.
This part of the code in 'question_category_object.php' 'update_category' method was used before Moodle 4.0 version for renaming
the random questions in an updated category. For Moodle 4.0 and later versions, it is unnecessary as the details of
random questions are no more stored in 'question' table but in 'question_set_references' table.
The method call move_question_set_references handles the same.
