Method: Arrow::HTMLUtilities.make_object_html_wrapper

Defined in:

lib/arrow/mixins.rb

.make_object_html_wrapper(object) ⇒ Object

Wrap up the various parts of a complex object in an HTML fragment. If the object has already been wrapped, returns a link to the previous rendering instead.

# File 'lib/arrow/mixins.rb', line 234

def make_object_html_wrapper( object )

  # If the object has been rendered already, just return a link to the previous
  # HTML fragment
  Thread.current[ THREAD_DUMP_KEY ] ||= {}
  if Thread.current[ THREAD_DUMP_KEY ].key?( object.object_id )
    return %Q{<a href="#object-%d" class="cache-link" title="jump to previous details">%s</a>} % [
      object.object_id,
      %{&rarr; %s #%d} % [ object.class.name, object.object_id ]
    ]
  else
    Thread.current[ THREAD_DUMP_KEY ][ object.object_id ] = true
  end

  # Assemble the innards as an array of parts
  parts = [
    %{<div class="object-header">},
    %{<span class="object-class">#{object.class.name}</span>},
    %{<span class="object-id">##{object.object_id}</span>},
    %{</div>},
    %{<div class="object-body">},
  ]

  object.instance_variables.sort.each do |ivar|
    value = object.instance_variable_get( ivar )
    html = make_html_for_object( value )
    classes = %w[instance-variable]
    if value.instance_variables.empty? && !value.respond_to?( :values_at )
      classes << 'simple'
    else
      classes << 'complex'
    end
    parts << IVAR_HTML_FRAGMENT % [ classes.join(' '), ivar, html ]
  end

  parts << %{</div>}

  # Make HTML class names out of the object's namespaces
  namespaces = object.class.name.downcase.split(/::/)
  classes = []
  namespaces.each_index do |i|
    classes << namespaces[0..i].join('-') + '-object'
  end

  # Glue the whole thing together and return it
  return OBJECT_HTML_CONTAINER % [
    object.object_id,
    classes.join(" "),
    parts.join("\n")
  ]
end