The helper module - methods for use within views.
Include Leightbox only if used for the current view, according to the Controller. Invoke using “<%= include_quiet_leightbox_if_used -%>” from within the HEAD section of an XHTML view. If you want your HTML output to be nice and tidy in terms of indentation :-) then pass a string in the optional parameter - it will be inserted before each “<script>” tag in the returned HTML fragment.
Note that a trailing newline is output so you can call the helper with the “-%>” closing ERB tag (as shown in the previous paragraph) to avoid inserting a single blank line into your output in the event that the plugin is not used by the current view.
# File lib/quiet_leightbox/quiet_leightbox.rb, line 49 def include_leightbox_if_used( line_prefix = '' ) return unless using_quiet_leightbox? data = "" # 2013-07-18 (ADH): Even with appropriate configuration data in # "config/application.rb" for the ":defaults" expansion, using it # here results in "assets/defaults.js" being generated. Doh. Since # code here is evaluated before the application starts, presumably # the expansion isn't defined in time. Instead we have to do it # the hard way. # # In addition, cooperate with the "Quiet Prototype" plugin. unless ( respond_to?( :using_quiet_prototype? ) && using_quiet_prototype?() ) data << javascript_include_tag( 'prototype/prototype' ) data << "\n" << javascript_include_tag( 'prototype_ujs/rails' ) data << "\n" << javascript_include_tag( 'scriptaculous/scriptaculous' ) data << "\n" end data << javascript_include_tag( 'leightbox/leightbox' ) data << "\n" << stylesheet_link_tag( 'leightbox/leightbox' ) return ( data.gsub( /^/, line_prefix ) + "\n" ).html_safe() end
Returns ‘true’ if configured to use the Leightbox library for the view related to the current request. See the “uses_leightbox” class method for more information.
# File lib/quiet_leightbox/quiet_leightbox.rb, line 80 def using_quiet_leightbox? ! @uses_leightbox.nil? end