Problem/Motivation
Nonsensical situations that are currently not prevented by the UI:
- Enabling CKEditor for a Markdown-powered text format.
- Enabling CKEditor while the
filter_autop(orfilter_url) filter is enabled.
(If it doesn't make sense to you that using filter_autop and filter_url precludes you from using CKEditor, then please read #1911884: Enable CKEditor in the Standard install profile and #1933896: Prevent enabling a text editor if a text format has one or more FILTER_TYPE_MARKUP_LANGUAGE filters enabled FIRST.)
Proposed resolution
As of #1782838: WYSIWYG in core: round one — filter types, filters can have types. filter_autop and filter_url are marked as FILTER_TYPE_MARKUP_LANGUAGE, because they are in effect extremely minimal markup languages.
Whenever >=1 FILTER_TYPE_MARKUP_LANGUAGE-type filter is enabled, we should disallow the enabling of a text editor.
Remaining tasks
- Get feedback. Figure out how to deal with edge cases, like http://oscargodson.github.com/EpicEditor/— a Markdown "WYSIWYG" editor.
- Write the code. Should probably use Drupal core's dialog and/or
#states.
User interface changes
TBD
API changes
None.