Module: Premailer::Adapter
- Defined in:
- lib/premailer/adapter.rb,
lib/premailer/adapter/nokogiri.rb,
lib/premailer/adapter/nokogumbo.rb,
lib/premailer/adapter/nokogiri_fast.rb
Overview
Manages the adapter classes. Currently supports:
-
nokogiri
-
nokogiri_fast
-
nokogumbo
Defined Under Namespace
Modules: Nokogiri, NokogiriFast, Nokogumbo
Constant Summary collapse
- REQUIREMENT_MAP =
adapter to required file mapping.
[ ["nokogiri", :nokogiri], ["nokogiri", :nokogiri_fast], ["nokogumbo", :nokogumbo] ]
Class Method Summary collapse
-
.default ⇒ Object
The default adapter based on what you currently have loaded and installed.
-
.find(adapter) ⇒ Object
Returns an adapter.
-
.use ⇒ Object
Returns the adapter to use.
-
.use=(new_adapter) ⇒ Object
Sets the adapter to use.
Class Method Details
.default ⇒ Object
The default adapter based on what you currently have loaded and installed. First checks to see if any adapters are already loaded, then checks to see which are installed if none are loaded.
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# File 'lib/premailer/adapter.rb', line 32 def self.default return :nokogiri if defined?(::Nokogiri) return :nokogiri_fast if defined?(::NokogiriFast) return :nokogumbo if defined?(::Nokogumbo) REQUIREMENT_MAP.each do |(library, adapter)| begin require library return adapter rescue LoadError next end end raise "No suitable adapter for Premailer was found, please install nokogiri or nokogumbo" end |
.find(adapter) ⇒ Object
Returns an adapter.
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# File 'lib/premailer/adapter.rb', line 57 def self.find(adapter) return adapter if adapter.is_a?(Module) Premailer::Adapter.const_get("#{adapter.to_s.split('_').map{|s| s.capitalize}.join}") rescue NameError raise ArgumentError, "Invalid adapter: #{adapter}" end |
.use ⇒ Object
Returns the adapter to use.
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# File 'lib/premailer/adapter.rb', line 22 def self.use return @use if @use self.use = self.default @use end |
.use=(new_adapter) ⇒ Object
Sets the adapter to use.
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# File 'lib/premailer/adapter.rb', line 51 def self.use=(new_adapter) @use = find(new_adapter) end |