Module: Jammit::Helper

Defined in:
lib/jammit-core/helper.rb

Overview

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.

Constant Summary collapse

DATA_URI_START =
"<!--[if (!IE)|(gte IE 8)]><!-->"
DATA_URI_END =
"<!--<![endif]-->"
MHTML_START =
"<!--[if lte IE 7]>"
MHTML_END =
"<![endif]-->"

Instance Method Summary collapse

Instance Method Details

#include_javascripts(*packages) ⇒ Object

Writes out the URL to the bundled and compressed javascript package, except in development, where it references the individual scripts.


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# File 'lib/jammit-core/helper.rb', line 27

def include_javascripts(*packages)
  tags = packages.map do |pack|
    Jammit.package_assets ? Jammit.asset_url(pack, :js) : Jammit.packager.individual_urls(pack.to_sym, :js)
  end
  javascript_include_tag(tags.flatten)
end

#include_stylesheets(*packages) ⇒ Object

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.


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# File 'lib/jammit-core/helper.rb', line 17

def include_stylesheets(*packages)
  options = packages.extract_options!
  return individual_stylesheets(packages, options) unless Jammit.package_assets
  disabled = (options.delete(:embed_assets) == false) || (options.delete(:embed_images) == false)
  return packaged_stylesheets(packages, options) if disabled || !Jammit.embed_assets
  return embedded_image_stylesheets(packages, options)
end

#include_templates(*packages) ⇒ Object

Writes out the URL to the concatenated and compiled JST file – we always have to pre-process it, even in development.


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# File 'lib/jammit-core/helper.rb', line 36

def include_templates(*packages)
  javascript_include_tag(packages.map {|pack| Jammit.asset_url(pack, :jst) })
end