The Jammit::Helper module, which is made available to every view, provides helpers for writing out HTML tags for asset packages. In development you get the ordered list of source files -- in any other environment, a link to the cached packages.
Writes out the URL to the bundled and compressed javascript package, except in development, where it references the individual scripts.
# File lib/jammit/helper.rb, line 27 def include_javascripts(*packages) options = packages.extract_options! html_safe packages.map {|pack| should_package? ? Jammit.asset_url(pack, :js) : Jammit.packager.individual_urls(pack.to_sym, :js) }.flatten.map {|pack| javascript_include_tag pack, options }.join("\n") end
If embed_assets is turned on, writes out links to the Data-URI and MHTML versions of the stylesheet package, otherwise the package is regular compressed CSS, and in development the stylesheet URLs are passed verbatim.
# File lib/jammit/helper.rb, line 17 def include_stylesheets(*packages) options = packages.extract_options! return html_safe(individual_stylesheets(packages, options)) unless should_package? disabled = (options.delete(:embed_assets) == false) || (options.delete(:embed_images) == false) return html_safe(packaged_stylesheets(packages, options)) if disabled || !Jammit.embed_assets return html_safe(embedded_image_stylesheets(packages, options)) end
Writes out the URL to the concatenated and compiled JST file -- we always have to pre-process it, even in development.
# File lib/jammit/helper.rb, line 38 def include_templates(*packages) raise DeprecationError, "Jammit 0.5+ no longer supports separate packages for templates.\nYou can include your JST alongside your JS, and use include_javascripts." end
HTML tags for the 'datauri', and 'mhtml' versions of the packaged stylesheets, using conditional comments to load the correct variant.
# File lib/jammit/helper.rb, line 65 def embedded_image_stylesheets(packages, options) datauri_tags = tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :datauri) } ie_tags = Jammit.mhtml_enabled ? tags_with_options(packages, options) {|p| Jammit.asset_url(p, :css, :mhtml) } : packaged_stylesheets(packages, options) [DATA_URI_START, datauri_tags, DATA_URI_END, MHTML_START, ie_tags, MHTML_END].join("\n") end
# File lib/jammit/helper.rb, line 49 def html_safe(string) string.respond_to?(:html_safe) ? string.html_safe : string end
HTML tags, in order, for all of the individual stylesheets.
# File lib/jammit/helper.rb, line 54 def individual_stylesheets(packages, options) tags_with_options(packages, options) {|p| Jammit.packager.individual_urls(p.to_sym, :css) } end
Generated with the Darkfish Rdoc Generator 2.