Moodle announced that support for IE would be dropped back in August
2020 with Moodle 3.9 but not active steps were taken at that time. That
decision was made in MDLSITE-6109 and this particular step was meant to
be taken in Moodle 3.10.
This is the first step taken to actively drop support for IE.
This commit also bumps the browser support pattern from 0.25% to 0.3%.
The percentage here includes any browser where at least this percentage
of users worldwide may be using a browser. In this case it causes
support for Android 4.3-4.4 to be dropped, which relate to Android
KitKat (released 2013).
This combination of changes means that all of the supported browsers in
our compatibility list support modern features including async,
for...of, classes, native Promises, and more which has a huge impact on
the ease of debugging code, and drastically reduces the minified file
size because a number of native Polyfills included by Babel are no
longer included.
Unfortunately the babel minify-mangle plugin seems to be abandoned and
in certain circumstances can be very buggy. The only safe options are to
disable it, or to switch to a different minification library.
Not minifying our javascript is not ideal, so this commit updates the
javascript tasks to use a rollup, combined with babel, and terser.
Babel still converts code from ES/UMD/AMD to AMD modules with the
relevant browser support, whilst terser minifies the code.
The rollup bundler handles tracking and creation of sourcemaps, and
supports better parallelisation of the tasks.
Since the upgrade to Node LTS/Gallium requires an upgrade to @babel/core
and eslint, which change the built files anyway, this seems like the
ideal time to make this change.
This commit implements versioning and associated features
in the previewquestion plugin. There have been some major
changes in the random question and version selection for
questions. This commit made those changes as well as added
some more features in the preview for version selection
and adds more behat coverage.
This implementation will introduce a qbank plugin "previewquestion"
which will view the preview question action in the question bank
actions by replacing the core classes, scripts and yui modules.
This plugin will also replace the preview option in the edit
question form. Having this plugin will give users the
flexibility of enabling or disabling this feature from
the question bank view.
This change will also allow other qbank plugins to add
elements or information in the preview question page
by implementing a callback. It also changes the pop
up to page redirect from base view page to make sure
any changes in preview reflects in the base view, for
example, comments added and the number of comments in
the comments colum changes while back from the preview
page. Other locations like edit and qtype plugins where
the preview is implemented, stays the same.
Co-Authored-By: Guillermo Gomez Arias <guillermogomez@catalyst-au.net>
Co-Authored-By: Safat Shahin <safatshahin@catalyst-au.net>
