Removed tabindex="-1" from main element to fix accessibility issue
Description
Removed tabindex="-1" from main
We had a strange issue where TalkBack wasn’t reading content in some xBlocks but was reading some others. I figured out that if you remove tabindex=-1 from <main>, TalkBack works as expected again. Tangentially, this breaks the old method of implementing SkipNav links. Further tangentially, the SkipNav links were already broken (or in this case redundant on mobile). @wittjeff will file two separate issues after this one PR is merged — one for a better way to implement SkipNav links for Learning MFE, and one for a better / functional way to implement SkipNav links for Mobile.
How to reproduce
Go to [this unit](https://courses.edx.org/xblock/block-v1:W3Cx+WAI0.1x+3T2019+type@html+block@2eb3c86c479f44ba964f88ff0bfd9211) on mobile and turn on TalkBack. It will skip main content. For further information on testing go to [Jira Ticket](https://openedx.atlassian.net/browse/LEARNER-7858)
Course-team-authored JS expects $$course_id to be defined
in the global scope. This has worked fine in Legacy courseware,
but due to some differences in page loading (which I don't
understand) between Legacy and Chromeless (ie New/MFE) XBlock
rendering templates, $$course_id wasn't being assigned before
course-team-authored JS was run, causing the scripts to break
on the undefined variable.
The fix here is to assign $$course_id in the <head>,
guaranteeing that the variable is assigned before
any other JS is run.
TNL-7993
Mobile apps load HTML (and other) XBlocks individually using the
render_xblock endpoint. This is an attmept to reduce the number
of requests and JS processing needed to do so by detecting when
we have math content in HTMLBlocks and only adding the Mathjax
resources when necessary.
This is controlled by the "courseware.optimized_render_xblock"
CourseWaffleFlag. For maximum safety, we currently only optimize
in this way when directly hitting HTMLBlocks, and not for
ProblemBlock or VerticalBlock.
This was made as part of edX's Hackathon XXV.
* Generate common/djangoapps import shims for LMS
* Generate common/djangoapps import shims for Studio
* Stop appending project root to sys.path
* Stop appending common/djangoapps to sys.path
* Import from common.djangoapps.course_action_state instead of course_action_state
* Import from common.djangoapps.course_modes instead of course_modes
* Import from common.djangoapps.database_fixups instead of database_fixups
* Import from common.djangoapps.edxmako instead of edxmako
* Import from common.djangoapps.entitlements instead of entitlements
* Import from common.djangoapps.pipline_mako instead of pipeline_mako
* Import from common.djangoapps.static_replace instead of static_replace
* Import from common.djangoapps.student instead of student
* Import from common.djangoapps.terrain instead of terrain
* Import from common.djangoapps.third_party_auth instead of third_party_auth
* Import from common.djangoapps.track instead of track
* Import from common.djangoapps.util instead of util
* Import from common.djangoapps.xblock_django instead of xblock_django
* Add empty common/djangoapps/__init__.py to fix pytest collection
* Fix pylint formatting violations
* Exclude import_shims/ directory tree from linting
- Hide the submit-button CTA link to reset dates in the mobile
app. They are working on their own solution.
- Don't show the dates_banner.html code in the courseware. It has
new CTA banner support with updated wording.
ORA2 (openassessment) problems have multiple dates associated with are
not bound to the `due` date that is modified by Personalized Learner
Schedules. We expose the ORA2 dates separately in the dates page
so that learners aren't surprised by the differing deadlines.
[AA-223]
- use new dates banner template on course outline page
- remove old banner from main.html
- let dates tab use new dates banner template
- remove dates banner completely from the courseware problem view
on the web app
- use new banner on the courseware problem view on the mobile app
- update banner util to use get_course_blocks
Added a banner to introduce learners to the Dates Tab.
The banner is hidden when the learner has missed deadlines.
Refactored naming conventions in the dates sass file to better
reflect the function of our banners.
AA-156
The dates tab has a lot of redundant calls to action around
upgrading to verified track. This replaces them with a single
banner at the top of the page.
AA-102
