Module: IconLinks::MethodMissing

Includes:
ViewHelpers
Defined in:
lib/icon_links/method_missing.rb

Instance Method Summary collapse

Methods included from ViewHelpers

#collapsible_tag, #desc_of, #expandable_tag, #function_icon, #help_for, #help_icon, #help_text, #icon_for, #icon_tag, #icon_to, #icon_to_remote, #icon_url, #png_image_tag, #toggle_tag

Instance Method Details

Handle missing methods so we can do fancy URL hooks. This is what gives us “edit_player_icon” and “new_game_icon”



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# File 'lib/icon_links/method_missing.rb', line 7

def method_missing_with_icon_links(method_id, *args)
  method = method_id.to_s

  # special catch for "run_icon", where it really means "run_run_icon"
  method = "#{$1}_#{$1}_icon" if method =~ /^([a-z]+)_icon$/
  if method =~ /^([a-z]+)_(.+)_icon$/
    options = args.last.is_a?(Hash) ? args.pop : {}
    if options.has_key?(:if)
      return icon_tag(:clear) unless options.delete(:if)
    end
    type = $1
    meth = $2
    icon = options.delete(:icon) || type
    unless label = options.delete(:label)
      label = meth.dup
      IconLinks.remove_prefixes_for_labels.each {|prefix| break if label.sub!(/^#{prefix}_/, '')}
      label = label.titleize
    end

    # Note: We pass *either* args OR options to a given xxx_path() method,
    # depending on whether it's a collection or member method.
    url  = ''
    case type

    when 'new'
      url = send("new_#{meth}_path", options)
      #options[:rel] = "gb_page_center[600, 500]"   # greybox
      options[:title] ||= "Create a new #{label}"
      return icon_to(icon, url, options)

    when 'ajaxnew'
      url = send("new_#{meth}_path", options)
      #options[:rel] = "gb_page_center[600, 500]"   # greybox
      options[:title] ||= "Create a new #{label}"
      return icon_to(icon, url, options)

    when 'edit'
      url = send("edit_#{meth}_path", args)
      #options[:rel] = "gb_page_center[600, 500]"   # greybox
      options[:title] ||= "Edit this #{label}"
      return icon_to(icon, url, options)

    when 'delete'
      url = send("#{meth}_path", args)
      options[:method] ||= :delete
      options[:title] ||= "Delete this #{label}"
      return icon_to(icon, url, options)

    when 'ajaxdelete'
      # Delete a record with an id, ala user_path(user)
      # Fancy AJAX, so that it deletes the row in-place
      options[:url]      ||= send("#{meth}_path", args)
      options[:method]   ||= 'delete'
      show = options.delete(:show) || args.first
      target = show.is_a?(ActiveRecord::Base) ? "#{show.class.name.to_s.underscore}_#{show.to_param}" : "#{show.to_param}"
      #options[:update]   ||= target
      options[:success] ||= "$('#{options[:update]}').hide;alert('success');"

      # I hate that sometimes in Rails, you need a fucking :html subelement
      htmlopt = {:title => "Delete this #{label}"}

      # If no condition, set a toggle so that we tell if we have clicked
      # on the button, and can collapse it appropriately.
      unless options[:condition]
        options[:id] = "#{options[:update]}_icon"
      end
      return link_to_remote(icon_tag(type, :id => options[:id]), options, htmlopt)

    when 'list'
      # Main index, this does NOT have an id, ie users_path
      # Fancy AJAX, so that it expands/collapses a sub-row
      options_without_update = options.dup
      options_without_update.delete(:update)
      url = send("#{meth.pluralize}_path", options_without_update)
      show = options.delete(:show) || options.values.first
      target = show.is_a?(ActiveRecord::Base) ? "show_#{show.class.name.to_s.underscore}_#{show.to_param}" : "show_#{show.to_param}"
      options[:update]   ||= target
      options[:url]      ||= url
      options[:method]   ||= 'get'
      options[:complete] ||= "$('#{options[:update]}').show();"

      # I hate that sometimes in Rails, you need a fucking :html subelement
      htmlopt = {:title => "List #{label.pluralize}"}

      # If no condition, set a toggle so that we tell if we have clicked
      # on the button, and can collapse it appropriately.
      extra_js = ''
      unless options[:condition]
        options[:id] = "#{options[:update]}_icon"
        var = "loaded_#{options[:update]}"
        options[:before] =
            "#{var} = !#{var};" +
            " if (#{var}) { $('#{options[:update]}').hide();"+
            " $('#{options[:id]}').src = '#{icon_url(:show)}'; return false }"+
            " else { $('#{options[:id]}').src = '#{icon_url(:loading)}' }"
        options[:complete]  += "$('#{options[:id]}').src = '#{icon_url(:hide)}';"
        # Don't use javascript_tag or, ironically, Prototype chokes
        extra_js = '<script type="text/javascript">' +
                   "#{var} = true;" + '</script>'
      end
      return extra_js + link_to_remote(icon_tag(:show, :id => options[:id]), options, htmlopt)

    when 'show'
      # Show a record with an id, ala user_path(user)
      # Fancy AJAX, so that it expands/collapses a sub-row
      options[:url]      ||= send("#{meth}_path", args)
      options[:method]   ||= 'get'
      show = options.delete(:show) || args.first
      target = show.is_a?(ActiveRecord::Base) ? "show_#{show.class.name.to_s.underscore}_#{show.to_param}" : "show_#{show.to_param}"
      options[:update]   ||= target
      options[:complete] ||= "$('#{options[:update]}').show();"

      # I hate that sometimes in Rails, you need a fucking :html subelement
      htmlopt = {:title => "Show more about this #{label}"}

      # If no condition, set a toggle so that we tell if we have clicked
      # on the button, and can collapse it appropriately.
      extra_js = ''
      unless options[:condition]
        options[:id] = "#{options[:update]}_icon"
        var = "loaded_#{options[:update]}"
        options[:before] =
            "#{var} = !#{var};" +
            " if (#{var}) { $('#{options[:update]}').hide();"+
            " $('#{options[:id]}').src = '#{icon_url(:show)}'; return false }"+
            " else { $('#{options[:id]}').src = '#{icon_url(:loading)}' }"
        options[:complete]  += "$('#{options[:id]}').src = '#{icon_url(:hide)}';"
        # Don't use javascript_tag or, ironically, Prototype chokes
        extra_js = '<script type="text/javascript">' +
                   "#{var} = true;" + '</script>'
      end
      return extra_js + link_to_remote(icon_tag(type, :id => options[:id]), options, htmlopt)

    when 'view'
      # Like "show", but we changed it to "view" to indicate new page
      # main index, this does NOT have an id
      url = send("#{meth}_path", args)
      options[:title] ||= "View this #{label}"
      return icon_to(icon, url, options)
    else
      # This generic handler handles all other actions
      options[:title] ||= "#{type.titleize} this #{label}"
      if options[:url]
        url = options.delete(:url)
        url[:controller] ||= meth.pluralize if url.is_a? Hash
        url[:id] ||= args[:id] if url.is_a? Hash and args.is_a? Hash
      elsif type == meth
        # call "run_path" for "run_run_icon"
        url = send("#{meth}_path", args)
      else
        # call "review_revision_path" for "review_revision_icon"
        url = send("#{type}_#{meth}_path", args)
      end
      if options[:remote]
        htmlopt = {}
        htmlopt[:title] = options.delete(:title) if options.has_key?(:title)
        htmlopt[:id] = options.delete(:id) if options.has_key?(:id)
        options[:url] = url
        return link_to_remote(icon_tag(icon), options, htmlopt)
      else
        return icon_to(icon, url, options)
      end
    end
  end
  method_missing_without_icon_links(method_id, args)
end