impress/app/helpers/application_helper.rb

module ApplicationHelper
  def add_body_class(class_name)
    @body_class ||= ''
    @body_class << " #{class_name}"
  end

  def auth_server_icon_url
    "http://#{Openneo::Auth.config.auth_server}/favicon.png"
  end

  def body_class
    "#{params[:controller]} #{params[:controller]}-#{params[:action]}".tap do |output|
      output << @body_class if @body_class
    end
  end

  def campaign_progress(&block)
    include_campaign_progress_requirements

    if block_given?
      content = capture(&block)
    else
      content = link_to('We need your help to keep growing and stay online!', donate_path) +
        link_to('Donate now!', donate_path, :class => 'button')
    end

    html = content_tag(:div, nil, :class => 'campaign-progress') +
      content_tag(:div, content, :class => 'campaign-progress-label')
    content_tag(:div, html, :class => 'campaign-progress-wrapper')
  end

  def canonical_path(resource)
    content_for :meta, tag(:link, :rel => 'canonical', :href => url_for(resource))
  end

  def flashes
    raw(flash.inject('') do |html, pair|
      key, value = pair
      html + content_tag('p', value, :class => "flash #{key}")
    end)
  end

  def include_campaign_progress_requirements
    unless @included_campaign_progress_requirements
      content_for(:javascripts,
        include_javascript_libraries(:jquery) +
          javascript_include_tag('pledgie')
      )

      content_for(:meta,
        tag(:meta, :name => 'pledgie-campaign-id', :content => PLEDGIE_CAMPAIGN_ID)
      )

      @included_campaign_progress_requirements = true
    end
  end

  def hide_home_link
    @hide_home_link = true
  end

  def home_link?
    !@hide_home_link
  end

  JAVASCRIPT_LIBRARIES = {
    :addthis => 'http://s7.addthis.com/js/250/addthis_widget.js#username=openneo',
    :bitly => 'http://bit.ly/javascript-api.js?version=latest&login=openneo&apiKey=R_4d0438829b7a99860de1d3edf55d8dc8',
    :html5 => 'http://html5shim.googlecode.com/svn/trunk/html5.js',
    :jquery => 'http://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js',
    :jquery_tmpl => 'http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js',
    :swfobject => 'http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js'
  }

  def include_javascript_libraries(*library_names)
    raw(library_names.inject('') do |html, name|
      html + javascript_include_tag(JAVASCRIPT_LIBRARIES[name])
    end)
  end

  def login_path_with_return_to
    login_path :return_to => request.fullpath
  end

  def logout_path_with_return_to
    logout_path :return_to => request.fullpath
  end

  def origin_tag(value)
    hidden_field_tag 'origin', value, :id => nil
  end

  def return_to_field_tag
    hidden_field_tag :return_to, request.fullpath
  end

  def show_title_header?
    params[:controller] != 'items'
  end

  def signed_in_meta_tag
    %(<meta name="user-signed-in" content="#{user_signed_in?}">).html_safe
  end

  def title(value)
    content_for :title, value
  end
end