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require 'gitlab/markdown'
module Gitlab
module Markdown
# HTML filter that replaces issue references with links. References to
# issues that do not exist are ignored.
#
# This filter supports cross-project references.
class IssueReferenceFilter < ReferenceFilter
include CrossProjectReference
# Public: Find `#123` issue references in text
#
# IssueReferenceFilter.references_in(text) do |match, issue, project_ref|
# "<a href=...>##{issue}</a>"
# end
#
# text - String text to search.
#
# Yields the String match, the Integer issue ID, and an optional String of
# the external project reference.
#
# Returns a String replaced with the return of the block.
def self.references_in(text)
text.gsub(Issue.reference_pattern) do |match|
yield match, $~[:issue].to_i, $~[:project]
end
end
def self.referenced_by(node)
{ issue: LazyReference.new(Issue, node.attr("data-issue")) }
end
def call
replace_text_nodes_matching(Issue.reference_pattern) do |content|
issue_link_filter(content)
end
end
# Replace `#123` issue references in text with links to the referenced
# issue's details page.
#
# text - String text to replace references in.
#
# Returns a String with `#123` references replaced with links. All links
# have `gfm` and `gfm-issue` class names attached for styling.
def issue_link_filter(text)
self.class.references_in(text) do |match, id, project_ref|
project = self.project_from_ref(project_ref)
if project && issue = project.get_issue(id)
url = url_for_issue(id, project, only_path: context[:only_path])
title = escape_once("Issue: #{issue.title}")
klass = reference_class(:issue)
data = data_attribute(project: project.id, issue: issue.id)
%(<a href="#{url}" #{data}
title="#{title}"
class="#{klass}">#{match}</a>)
else
match
end
end
end
def url_for_issue(*args)
IssuesHelper.url_for_issue(*args)
end
end
end
end
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