gem 'activesupport', ">= 2.3.2"
require 'active_support'
module ViewHelpers
# The NavTab Class holds the structure of a navigation tab (including
# its sub-nav items).
class NavTab < Array
attr_reader :name, :proper_name
def initialize(name, proper_name)
@name, @proper_name = name, proper_name
end
def [](id)
unless id.kind_of? Fixnum
self.find {|subnav_item| subnav_item.name.to_s == id.to_s }
else
super
end
end
end
# Simple structure for storing the properties of a tab's sub items.
class NavSubItem
attr_reader :name, :proper_name, :url
def initialize(name, proper_name, url = "#")
@name, @proper_name, @url = name, proper_name, url
end
end
def nav_tabs
content = NavTab.new(:content, "Content")
content << NavSubItem.new(:pages, "Pages", "/admin/pages/")
design = NavTab.new(:design, "Design")
design << NavSubItem.new(:layouts, "Layouts", "/admin/layouts/")
design << NavSubItem.new(:snippets, "Snippets", "/admin/snippets/")
media = NavTab.new(:assets, "Assets")
media << NavSubItem.new(:images, "Images", "/admin/images/")
media << NavSubItem.new(:stylesheets, "Stylesheets", "/admin/stylesheets/")
media << NavSubItem.new(:javascripts, "Javascripts", "/admin/javascripts/")
media << NavSubItem.new(:files, "Other Files", "/admin/files/")
settings = NavTab.new(:settings, "Settings")
settings << NavSubItem.new(:general, "General", "/admin/settings/")
settings << NavSubItem.new(:users, "Users", "/admin/users/")
settings << NavSubItem.new(:extensions, "Extensions", "/admin/extensions/")
[content, design, media, settings]
end
def body_classes
@body_classes ||= []
end
def button_to(title, url, html_options={})
html_options.update(:onclick=>"window.location = '#{url}'")
content_tag :button, title, html_options
end
module GravatarHelper
# Returns a Gravatar URL associated with the email parameter.
# See: http://douglasfshearer.com/blog/gravatar-for-ruby-and-ruby-on-rails
def gravatar_url(email, options={})
# Default to highest rating. Rating can be one of G, PG, R X.
options[:rating] ||= "G"
# Default size of the image.
options[:size] ||= "32px"
# Default image url to be used when no gravatar is found
# or when an image exceeds the rating parameter.
options[:default] ||= "http://localhost:4000/images/admin/avatar_#{([options[:size].to_i] * 2).join('x')}.png"
# Build the Gravatar url.
url = 'http://www.gravatar.com/avatar.php?'
url << "gravatar_id=#{Digest::MD5.new.update(email)}"
url << "&rating=#{options[:rating]}" if options[:rating]
url << "&size=#{options[:size]}" if options[:size]
url << "&default=#{options[:default]}" if options[:default]
url
end
end
include GravatarHelper
module EscapeHelper
HTML_ESCAPE = { '&' => '&', '>' => '>', '<' => '<', '"' => '"' }
JSON_ESCAPE = { '&' => '\u0026', '>' => '\u003E', '<' => '\u003C' }
# A utility method for escaping HTML tag characters.
# This method is also aliased as <tt>h</tt>.
#
# In your ERb templates, use this method to escape any unsafe content. For example:
# <%=h @person.name %>
#
# ==== Example:
# puts html_escape("is a > 0 & a < 10?")
# # => is a > 0 & a < 10?
def html_escape(s)
s.to_s.gsub(/[&"><]/) { |special| HTML_ESCAPE[special] }
end
alias h html_escape
# A utility method for escaping HTML entities in JSON strings.
# This method is also aliased as <tt>j</tt>.
#
# In your ERb templates, use this method to escape any HTML entities:
# <%=j @person.to_json %>
#
# ==== Example:
# puts json_escape("is a > 0 & a < 10?")
# # => is a \u003E 0 \u0026 a \u003C 10?
def json_escape(s)
s.to_s.gsub(/[&"><]/) { |special| JSON_ESCAPE[special] }
end
alias j json_escape
end
include EscapeHelper
module FixtureHelper
@@fixture_count = 0
class HashStruct
def metaclass
class << self; self; end
end
def initialize(hash={})
merge(hash, true)
end
def merge(hash, force=false)
hash.each do |(k,v)|
metaclass.send(:define_method, "#{k}") { instance_variable_get("@#{k}") } if force or !respond_to?("#{k}")
metaclass.send(:define_method, "#{k}=") { |value| instance_variable_set("@#{k}", value) } if force or !respond_to?("#{k}=")
send("#{k}=", v)
end
end
end
def fixture(hash={}, extensions=Module.new)
defaults = {:id => (@@fixture_count += 1)}
f = HashStruct.new(defaults.merge(hash))
f.extend(extensions)
f.initialize_fixture if f.respond_to? :initialize_fixture
f
end
end
include FixtureHelper
module FlashHelper
def flash
@flash ||= {}
end
end
include FlashHelper
module ParamsHelper
# Key based access to query parameters. Keys can be strings or symbols.
def params
@params ||= begin
q = request.query.dup
q.each { |(k,v)| q[k.to_s.intern] = v }
q
end
end
# Extract the value for a bool param. Handy for rendering templates in
# different states.
def boolean_param(key, default = false)
key = key.to_s.intern
value = params[key]
return default if value.nil?
case value.strip.downcase
when 'true'
true
when 'false'
false
else
raise 'Invalid value'
end
end
end
include ParamsHelper
module TagHelper
def content_tag(name, content, html_options={})
%{<#{name}#{html_attributes(html_options)}>#{content}</#{name}>}
end
def tag(name, html_options={})
%{<#{name}#{html_attributes(html_options)} />}
end
def image_tag(src, html_options = {})
tag(:img, html_options.merge({:src=>src}))
end
def javascript_tag(content = nil, html_options = {})
content_tag(:script, javascript_cdata_section(content), html_options.merge(:type => "text/javascript"))
end
def link_to(name, href, html_options = {})
html_options = html_options.stringify_keys
confirm = html_options.delete("confirm")
onclick = "if (!confirm('#{html_escape(confirm)}')) return false;" if confirm
content_tag(:a, name, html_options.merge(:href => href, :onclick=>onclick))
end
def link_to_function(name, *args, &block)
html_options = {}
html_options = args.pop if args.last.is_a? Hash
function = args[0] || ''
onclick = "#{"#{html_options[:onclick]}; " if html_options[:onclick]}#{function}; return false;"
href = html_options[:href] || '#'
content_tag(:a, name, html_options.merge(:href => href, :onclick => onclick))
end
def mail_to(email_address, name = nil, html_options = {})
html_options = html_options.stringify_keys
encode = html_options.delete("encode").to_s
cc, bcc, subject, body = html_options.delete("cc"), html_options.delete("bcc"), html_options.delete("subject"), html_options.delete("body")
string = ''
extras = ''
extras << "cc=#{CGI.escape(cc).gsub("+", "%20")}&" unless cc.nil?
extras << "bcc=#{CGI.escape(bcc).gsub("+", "%20")}&" unless bcc.nil?
extras << "body=#{CGI.escape(body).gsub("+", "%20")}&" unless body.nil?
extras << "subject=#{CGI.escape(subject).gsub("+", "%20")}&" unless subject.nil?
extras = "?" << extras.gsub!(/&?$/,"") unless extras.empty?
email_address = email_address.to_s
email_address_obfuscated = email_address.dup
email_address_obfuscated.gsub!(/@/, html_options.delete("replace_at")) if html_options.has_key?("replace_at")
email_address_obfuscated.gsub!(/\./, html_options.delete("replace_dot")) if html_options.has_key?("replace_dot")
if encode == "javascript"
"document.write('#{content_tag("a", name || email_address_obfuscated, html_options.merge({ "href" => "mailto:"+email_address+extras }))}');".each_byte do |c|
string << sprintf("%%%x", c)
end
"<script type=\"#{Mime::JS}\">eval(decodeURIComponent('#{string}'))</script>"
elsif encode == "hex"
email_address_encoded = ''
email_address_obfuscated.each_byte do |c|
email_address_encoded << sprintf("&#%d;", c)
end
protocol = 'mailto:'
protocol.each_byte { |c| string << sprintf("&#%d;", c) }
email_address.each_byte do |c|
char = c.chr
string << (char =~ /\w/ ? sprintf("%%%x", c) : char)
end
content_tag "a", name || email_address_encoded, html_options.merge({ "href" => "#{string}#{extras}" })
else
content_tag "a", name || email_address_obfuscated, html_options.merge({ "href" => "mailto:#{email_address}#{extras}" })
end
end
private
def cdata_section(content)
"<![CDATA[#{content}]]>"
end
def javascript_cdata_section(content) #:nodoc:
"\n//#{cdata_section("\n#{content}\n//")}\n"
end
def html_attributes(options)
unless options.blank?
attrs = []
options.each_pair do |key, value|
if value == true
attrs << %(#{key}="#{key}") if value
else
attrs << %(#{key}="#{value}") unless value.nil?
end
end
" #{attrs.sort * ' '}" unless attrs.empty?
end
end
end
include TagHelper
end
) is private.
