Core: Add tabindex
to code blocks
#2799
Merged
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This fixes #2695.
I tested it with all plugins and it works with all of them (almost).
Code blocks with error messages produced by JSONP Highlight and File Highlight do not get a
tabindex=0
because of this condition. It's probably acceptable since these error messages are only one line.This change is also incompatible with the Coy theme, Coy code blocks are not tab-able even with the
tabindex
added. Coy uses thecode
element as its block and not thepre
element as all other themes do. This causes various problems. Frankly, I consider this as yet another bug related to Coy's special layouting. We should seriously think about changing Coy to fix this.