Commit a756fd1f authored by Dmitriy Zaporozhets's avatar Dmitriy Zaporozhets Committed by Jan-Willem van der Meer

Merge pull request #8020 from mr-vinn/note-trunc-link

Improve event note display in dashboard and project activity views
parents fe14384e b3c70d00
......@@ -136,9 +136,8 @@ module EventsHelper
end
def event_note(text)
text = first_line_in_markdown(text)
text = truncate(text, length: 150)
sanitize(markdown(text), tags: %w(a img b pre p))
text = first_line_in_markdown(text, 150)
sanitize(text, tags: %w(a img b pre code p))
end
def event_commit_title(message)
......
......@@ -51,12 +51,14 @@ module GitlabMarkdownHelper
@markdown.render(text).html_safe
end
def first_line_in_markdown(text)
line = text.split("\n").detect do |i|
i.present? && markdown(i).present?
end
line += '...' unless line.nil?
line
# Return the first line of +text+, up to +max_chars+, after parsing the line
# as Markdown. HTML tags in the parsed output are not counted toward the
# +max_chars+ limit. If the length limit falls within a tag's contents, then
# the tag contents are truncated without removing the closing tag.
def first_line_in_markdown(text, max_chars = nil)
md = markdown(text).strip
truncate_visible(md, max_chars || md.length) if md.present?
end
def render_wiki_content(wiki_page)
......@@ -204,4 +206,52 @@ module GitlabMarkdownHelper
def correct_ref
@ref ? @ref : "master"
end
private
# Return +text+, truncated to +max_chars+ characters, excluding any HTML
# tags.
def truncate_visible(text, max_chars)
doc = Nokogiri::HTML.fragment(text)
content_length = 0
truncated = false
doc.traverse do |node|
if node.text? || node.content.empty?
if truncated
node.remove
next
end
# Handle line breaks within a node
if node.content.strip.lines.length > 1
node.content = "#{node.content.lines.first.chomp}..."
truncated = true
end
num_remaining = max_chars - content_length
if node.content.length > num_remaining
node.content = node.content.truncate(num_remaining)
truncated = true
end
content_length += node.content.length
end
truncated = truncate_if_block(node, truncated)
end
doc.to_html
end
# Used by #truncate_visible. If +node+ is the first block element, and the
# text hasn't already been truncated, then append "..." to the node contents
# and return true. Otherwise return false.
def truncate_if_block(node, truncated)
if node.element? && node.description.block? && !truncated
node.content = "#{node.content}..." if node.next_sibling
true
else
truncated
end
end
end
require 'spec_helper'
describe EventsHelper do
include ApplicationHelper
include GitlabMarkdownHelper
it 'should display one line of plain text without alteration' do
input = 'A short, plain note'
expect(event_note(input)).to match(input)
expect(event_note(input)).not_to match(/\.\.\.\z/)
end
it 'should display inline code' do
input = 'A note with `inline code`'
expected = 'A note with <code>inline code</code>'
expect(event_note(input)).to match(expected)
end
it 'should truncate a note with multiple paragraphs' do
input = "Paragraph 1\n\nParagraph 2"
expected = 'Paragraph 1...'
expect(event_note(input)).to match(expected)
end
it 'should display the first line of a code block' do
input = "```\nCode block\nwith two lines\n```"
expected = '<pre><code class="">Code block...</code></pre>'
expect(event_note(input)).to match(expected)
end
it 'should truncate a single long line of text' do
text = 'The quick brown fox jumped over the lazy dog twice' # 50 chars
input = "#{text}#{text}#{text}#{text}" # 200 chars
expected = "#{text}#{text}".sub(/.{3}/, '...')
expect(event_note(input)).to match(expected)
end
it 'should preserve a link href when link text is truncated' do
text = 'The quick brown fox jumped over the lazy dog' # 44 chars
input = "#{text}#{text}#{text} " # 133 chars
link_url = 'http://example.com/foo/bar/baz' # 30 chars
input << link_url
expected_link_text = 'http://example...</a>'
expect(event_note(input)).to match(link_url)
expect(event_note(input)).to match(expected_link_text)
end
end
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