Sha256: 368cccea300d496de6a6e65379a3c59517937ea4056f2e8a040fbed29314404e
Contents?: true
Size: 1.97 KB
Versions: 13
Compression:
Stored size: 1.97 KB
Contents
module Juli::Visitor::Html::Helper
# Helper-class for 'contents' helper
class Contents < AbstractHelper
# Check if chapter exists or not
class ChapterChecker < Juli::Absyn::Visitor
attr_accessor :chapter_exists
def initialize(opts = {})
@chapter_exists = false
super
end
def visit_chapter(n)
@chapter_exists = true
end
end
class ContentsDrawer < Juli::Absyn::Visitor
include Juli::Visitor::Html::TagHelper
include Juli::Visitor::Html::Helper
def visit_node(n); ''; end
def visit_str(n); ''; end
def visit_verbatim(n); ''; end
def visit_ordered_list(n); ''; end
def visit_unordered_list(n); ''; end
def visit_compact_dictionary_list(n); ''; end
def visit_compact_dictionary_list_item(n); ''; end
def visit_dictionary_list(n); ''; end
def visit_dictionary_list_item(n); ''; end
def visit_array(n)
n.array.inject(''){|result, child|
result += child.accept(self)
}
end
def visit_chapter(n)
content_tag(:li) do
content_tag(:a, :href=>'#' + header_id(n)) do
n.str
end +
content_tag(:ol) do
n.blocks.accept(self)
end
end
end
end
# called on each parsed document
def on_root(in_file, root, visitor = nil)
@root = root
end
# implementation of:
# contents
#
# which draws contents(a.k.a. outline) of this document.
#
# This visits document tree by ContentsDrawer visitor and
# generate HTML contents list.
def run(*args)
contents_drawer = ContentsDrawer.new
chapter_checker = ChapterChecker.new
@root.accept(chapter_checker)
if chapter_checker.chapter_exists
contents_drawer.content_tag(:b, I18n.t('contents')) +
contents_drawer.content_tag(:ol) do
@root.accept(contents_drawer)
end
else
''
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems