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# encoding: utf-8
# Tag Cloud for Octopress
# =======================
#
# Description:
# ------------
# Easy output tag cloud and category list.
#
# Syntax:
# -------
# {% tag_cloud [counter:true] %}
# {% category_list [counter:true] %}
#
# Example:
# --------
# In some template files, you can add the following markups.
#
# ### source/_includes/custom/asides/tag_cloud.html ###
#
# <section>
# <h1>Tag Cloud</h1>
# <span id="tag-cloud">{% tag_cloud %}</span>
# </section>
#
# ### source/_includes/custom/asides/category_list.html ###
#
# <section>
# <h1>Categories</h1>
# <ul id="category-list">{% category_list counter:true %}</ul>
# </section>
#
# Notes:
# ------
# Be sure to insert above template files into `default_asides` array in `_config.yml`.
# And also you can define styles for 'tag-cloud' or 'category-list' in a `.scss` file.
# (ex: `sass/custom/_styles.scss`)
#
# Licence:
# --------
# Distributed under the [MIT License][MIT].
#
# [MIT]: http://www.opensource.org/licenses/mit-license.php
#
require 'stringex'
module Jekyll
class TagCloud < Liquid::Tag
def initialize(tag_name, markup, tokens)
@opts = {}
if markup.strip =~ /\s*counter:(\w+)/i
@opts['counter'] = ($1 == 'true')
markup = markup.strip.sub(/counter:\w+/i,'')
end
super
end
def render(context)
lists = {}
max, min = 1, 1
config = context.registers[:site].config
category_dir = config['root'] + config['category_dir'] + '/'
categories = context.registers[:site].categories
categories.keys.sort_by{ |str| str.downcase }.each do |category|
count = categories[category].count
lists[category] = count
max = count if count > max
end
html = ''
lists.each do | category, counter |
url = category_dir + category.to_url
style = "font-size: #{100 + (60 * Float(counter)/max)}%"
html << "<a href='#{url}' style='#{style}'>#{category}"
if @opts['counter']
html << "(#{categories[category].count})"
end
html << "</a> "
end
html
end
end
class CategoryList < Liquid::Tag
def initialize(tag_name, markup, tokens)
@opts = {}
if markup.strip =~ /\s*counter:(\w+)/i
@opts['counter'] = ($1 == 'true')
markup = markup.strip.sub(/counter:\w+/i,'')
end
super
end
def render(context)
html = ""
config = context.registers[:site].config
category_dir = config['category_dir']
categories = context.registers[:site].categories
categories.keys.sort_by{ |str| str.downcase }.each do |category|
html << "<li><a href='/#{category_dir}/#{category.to_url}/'>#{category}"
if @opts['counter']
html << " (#{categories[category].count})"
end
html << "</a></li>"
end
html
end
end
end
Liquid::Template.register_tag('tag_cloud', Jekyll::TagCloud)
Liquid::Template.register_tag('category_list', Jekyll::CategoryList)