diff options
Diffstat (limited to 'lib/banzai/filter/mermaid_filter.rb')
| -rw-r--r-- | lib/banzai/filter/mermaid_filter.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/banzai/filter/mermaid_filter.rb b/lib/banzai/filter/mermaid_filter.rb new file mode 100644 index 00000000000..b545b947a2c --- /dev/null +++ b/lib/banzai/filter/mermaid_filter.rb @@ -0,0 +1,20 @@ +module Banzai + module Filter + class MermaidFilter < HTML::Pipeline::Filter + def call + doc.css('pre[lang="mermaid"]').add_class('mermaid') + doc.css('pre[lang="mermaid"]').add_class('js-render-mermaid') + + # The `<code></code>` blocks are added in the lib/banzai/filter/syntax_highlight_filter.rb + # We want to keep context and consistency, so we the blocks are added for all filters. + # Details: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15107/diffs?diff_id=7962900#note_45495859 + doc.css('pre[lang="mermaid"]').each do |pre| + document = pre.at('code') + document.replace(document.content) + end + + doc + end + end + end +end |